• 专利附录
  • 专利说明
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  • 类似技术
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    • 专利摘要:
    elevator system with braking device. the present invention relates to an elevator system, an elevator car (2) is arranged movable along at least two guide rails (60 and the elevator car (2) is equipped with a brake assembly (10 ), with at least two brakes (11, 11a, 111) .The brake (11, 11a, 111) comprises a brake shoe (15, 15a, 115) with an essentially curvilinear shape and the brake shoe (15, 15a , 115) is rotatable in a brake shoe retainer (13, 13a, 113) .The brake shoe retainer (13,13a, 113) is mounted between a ready position and a engaged position, being linearly displaceable in the brake housing (12, 112) and a return assembly (16, 116) retain the brake shoe (15, 15a, 115) and / or the brake shoe retainer (13,13a, 113) with non-activated brake (11, 11a, 111) in the ready position, if necessary, the brake, if necessary, can be activated by the actuator (30) .The actuator (30) holds the brake (11, 11a, 111) in a stand-by position and, in the need one, can activate the brake (11, 11a, 111). for this purpose, the actuator (30) has a force reservoir (31) which is suitable so that, if necessary, it acts on the brake (11, 11a, 111), through a connection point (37, 37a ), moving or activating the brake (11, 11a, 111) in its engaged position. the power reservoir (31) will be retained and maintained in electromagnetic form and the return set (36) allows a return of the power reservoir (31) and actuated (30), after activation, to the service position.
    公开号:BR112012023027B1
    申请号:R112012023027-1
    申请日:2011-03-11
    公开日:2020-12-15
    发明作者:Josef Husmann
    申请人:Inventio Ag；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a brake for an elevator car, a method for braking the elevator car and an elevator installation with an elevator car and with a brake of this kind.
    [0002] The installation of the elevator is integrated in a housing. It essentially consists of a cabin that is supported by means of support with a counterweight or a second cabin. By means of a drive that acts selectively on the means of support, directly on the cabin or on the counterweight, the cabin will be moved along essentially vertical guide rails. The elevator installation will be used to transport people and materials inside the building, covering several floors.
    [0003] The installation of elevators comprises devices to secure the elevator car in case of failure of the drive or of the support means, or also to offer protection when stopping on a floor, against unwanted displacement. For this purpose, braking sets are normally used which, if necessary, can brake the elevator car on the guide rails.
    [0004] From the European patent EP1733992 a braking set of this type has become known. This braking set can be activated in an electromagnetic manner, and after activation and with the elevator cabin already in motion, a release arm with straps pulls a chestnut with brake plates, which brake the cabin. In this case, using the rotating nut, the release arm will be returned to its return position. It is a disadvantage that the release arm, with the elevator car paralyzed, for example, during a stop on a floor, can be activated, but a return can only be made after turning the rotating nut.
    [0005] European patent EP2154096 discloses another brake set of this type. This braking unit can also be activated in an electromagnetic way, and if necessary, a brake housing with the brake nut is compressed against a rail. A subsequent movement of the brake assembly rotates the brake shoe to its working position. In order for sufficient braking force to be achieved, the brake shoe must be made correspondingly large, with the result that there is a marked mounting height for this braking assembly.
    [0006] The present invention therefore has the objective of providing a braking assembly with brakes and the necessary activation means, suitable to be mounted in an elevator car, and which can produce the braking of said elevator car. In this case, the braking unit must also be able to be activated with the elevator car paralyzed, in order to avoid any unintended displacement of the car and it must also be able to be reset in a simple way.
    [0007] In accordance with a first aspect of the invention, a brake will be described which is intended to be mounted in an elevator car. The elevator car is driven along guide rails and the brake is prepared to brake the elevator car on the guide rails or to prevent unintended displacement or unintended sliding during a stop on a certain floor. For this purpose, if necessary, a brake shoe will be pressed against the guide rail, with which a corresponding braking force can be generated.
    [0008] The brake comprises a brake housing, a brake retainer, the brake shoe and advantageously a return assembly.
    [0009] The brake housing contains fixing points for holding the brake in the elevator car and includes the constructive fixing and mounting points for receiving brake components. The brake housing is shaped to transmit the necessary forces.
    [00010] The brake shoe retainer contains the brake shoe and, in one embodiment, is integrated linearly displaceable within the brake housing. The brake shoe retainer, that is, in this version, a brake shoe trolley, can therefore be essentially approached and moved away perpendicularly to the surface of the guide rail.
    [00011] Alternatively, the brake shoe retainer is rotatable around an essentially horizontal axis, inside the brake housing. The brake shoe retainer, that is, in this version, a brake shoe lever can therefore also be moved, that is, approached and away from the surface of the guide rail.
    [00012] The brake shoe has a curved shape, that is, it covers curved and eventually straight braking faces, which, depending on a momentary state of movement, may be in braking action with the guide rail. The unit is rotatable and advantageously also movable in the brake shoe retainer. For this purpose, a mounting shaft that receives the brake shoe is advantageously provided in the brake shoe retainer. The mounting shaft advantageously has a sliding coating or a bearing housing, for example, a needle bearing and the brake shoe has a corresponding mounting hole.
    [00013] The brake shoe retainer is integrated in the brake housing in such a way that it can be moved in a linear or rotating direction between a standby position and a engaged position. In the standby position - the standby position also corresponds to the non-activated state of the brake - an air gap is provided between the guide rail and the brake shoe. This air gap is usually about 1 to a maximum of about 6 mm. The air gap allows that in normal operation, the brake does not touch the rail, thus avoiding wear and possible drag noise. In normal operation, the return assembly secures the brake shoe and / or the brake shoe retainer in this standby position.
    [00014] For this purpose, the return assembly pulls the brake shoe retainer with the brake shoe in the direction of its removal from the guide rail. For activation, the brake shoe retainer will be compressed together with the brake shoe, against the action of the return assembly, against the guide rail. In this way, the brake can be moved simply into a engaged position and can also be returned to the ready position. By the linear application, essentially perpendicular, the brake requires little space at the height and can be shaped to brake independently of the direction of travel.
    [00015] Instead of a return assembly, only one locking position can also be used, for example, a quick spherical locking device, which holds the brake shoe retainer and / or the brake shoe in the readiness. The return movement from the engagement position to the ready position would have to be done in this case by another control element.
    [00016] Naturally, instead of the mounting hole, the brake shoe could also be formed with mounting pins that cooperate with correspondingly shaped mounting seats on the brake shoe retainer.
    [00017] Advantageously, the brake comprises an applicator assembly that can linearly move the brake shoe retainer from the ready position to the engaged position.
    [00018] Advantageously, the brake shoe, integrated rotatable within the brake shoe retainer, is so shaped that in a first partial region it is rotatable around the assembly axis and in a second sequential region of the first region, it is disposable in a rectangular direction, that is, transversal to the assembly axis, in a longitudinal direction. The brake shoe can therefore be moved longitudinally after the rotation over the first partial region, over the second partial region in the brake shoe retainer. For this purpose, the brake shoe is formed in the first partial region, essentially in a circular or snail shape and in the second partial region it presents an essentially rectilinear shape. The brake shoe also advantageously has an internal contour similar to an oblong hole - that is to say, the mounting hole is an oblong hole - which enables the rotation and the subsequent longitudinal displacement. The return set acts on the brake shoe so that the brake shoe is retracted in the ready position by the return set and the application of forces on the mounting shaft will also retract the entire brake shoe retainer.
    [00019] Furthermore, advantageously, the circular curve shape of the first partial region is so shaped that a distance from the curve to the mounting axis, depending on a turning angle, for example, in a segment in snail, increases proportionally to the angle of rotation and the rectilinear shape of the second partial region is shaped in such a way that it increases a distance from the rectilinear shape to the longitudinal axis depending on a longitudinal displacement, as with a wedge.
    [00020] In this way, it results in an advantageous effect in the sense that the brake shoe when reaching the engaged position, correspondingly with the direction of travel of the elevator car, and correspondingly to the shape of the spiral curve, of the first the partial region is now rotated, which increases the distance from the curve in the direction of the assembly axis and, correspondingly, the brake shoe retainer will be returned, that is, rotated in a return movement. In this way, in this first phase of work, the application gap that was lost in the application from the ready position to the engaged position will again be compensated. During this movement, therefore, only a small activation force is provided for the application of the brake shoe retainer. In the absence of this activation force, that is, in the event of a possible brake return, the return assembly may return the brake shoe retainer directly, again, to the ready position.
    [00021] If the elevator car continues to move, that is, the brake is further ahead, that is, it is moving, however, the brake shoe will be advanced automatically. It now starts from the rotating movement, when the second partial region is reached, in a movement of rectilinear application. The brake shoe will be moved longitudinally in a rectangular direction towards the mounting axis, thereby further increasing the distance of the curve in relation to the mounting axis. This increase in distance, that is, the second phase of work, produces another return of the brake shoe retainer. This return will be used to form a compression force that allows a safe braking of the cab.
    [00022] A brake of this conformation can be used in an exceptional way to protect, for example, an elevator cabin, when stopped on a floor, against an unintended slip, and can reposition the brake, even so with unintended displacement movements, only reduced, which result, for example, from cable expansion. In addition, the braking effect is present in both directions of travel and, in all, only a reduced construction height is required.
    [00023] In addition, by determining the shape of the first and the second partial region, the compression force and, therefore, the resulting braking force can be varied in the two directions of travel. In order to protect the cab against falling, greater braking forces are normally required than in the case of upward braking of the cab.
    [00024] Advantageously, the brake also contains a compression spring block with compression springs. These compression springs are pre-stressed to a prestressing force in the compression spring block, which force can be previously adjusted. The brake shoe retainer is positioned in the ready position by the return assembly, leaning against the compression spring block, that is, it will be pulled by the return assembly to a stop determined by the compression spring block.
    [00025] In this way, the braking force can be controlled in a controlled way since the shape of the brake shoe determines the path geometries and, therefore, the resulting molar paths. Therefore, based on molar characteristics and considering the expected friction values between the brake shoe and the guide rail, a necessary prestressing can be determined.
    [00026] Advantageously, the return assembly comprises a molar assembly that acts on the brake shoe, for example, a spiral spring, which advantageously, through a cable acts on the brake shoe, thus pulling the retainer of the brake shoe brake to the ready position.
    [00027] In this way, the brake shoe can always be returned to its central position and the brake shoe retainer can be retracted to the compression spring block.
    [00028] Advantageously, the brake shoe is shaped asymmetrically, so that on both sides of the circular curvilinear shape of the first partial region, a second rectilinear partial region follows in such a way that it increases a distance between the curve and the sequential rectilinear shape and the mounting axis, depending on the angle of rotation and the longitudinal displacement. The increase in distance is variable, depending on the direction of rotation and the displacement of the brake shoe. In this way, braking forces depending on the direction of travel can be generated, since the variable increase in distance produces variable compression forces. This helps because in an elevator installation, normally, as described above, in the downward direction, more intense braking forces are required to be able to capture an eventual sixth of displacement, that is, a falling cabin.
    [00029] The brake shoe itself is produced from a material that is suitable as a brake material. In the simplest case, one can deal with hardened steel faces or one can also deal with braking faces, for example, high quality ceramics, which then, advantageously, are applied or attached to a basic body. It also approved the use of braking faces with tempered metal linings. A slope angle that describes the change in the distance of the curve in relation to the turning point, that is, the longitudinal axis, depending on the turning angle and the longitudinal displacement, is designated according to the brake material used, so that it is An independent, ie automatic brake, engagement is ensured as soon as the brake shoe retainer has reached its engagement position and the movement of the elevator car is verified.
    [00030] As the braking forces, required in the downward direction, are usually more intense than the braking forces required in the upward direction, by the profiling of the brake shoe, the compression forces - as already explained - will be correspondingly controlled. To achieve good braking, however, minimal surface compressions are also required between the brake shoe and the guide rail, which ensure the formation of a sufficient friction value. In order to obtain comparable upward compressions in the upward and downward direction, it may be advantageous that the respective second partial region of the brake shoe is conformed to a smaller braking face, for example, by applying longitudinal grooves or longitudinal skids.
    [00031] It is especially advantageous that a brake of this type always has two brake shoe retainers with brake pads and return assembly, these components being essentially mounted, in symmetrical arrangement, within the brake housing, reciprocally so that in conjunction with the guide rail, the guide rail extends between the two brake nut retainers with the corresponding brake pads. The applicator set is so shaped that during application, the two brake shoe retainers are reciprocally displaced, that is, reciprocally rotated, with which the corresponding brake shoes hold the guide rail.
    [00032] Alternatively, the brake contains, in addition to the brake shoe retainer with the brake shoe and the return assembly, a fixed brake plate, opposite to this brake shoe retainer, so that in action in conjunction with the rail -guide, the guide rail protrudes between the brake shoe retainer with the corresponding brake shoe and the fixed brake plate.
    [00033] Two reciprocally opposed brake shoe retainers will be advantageous when a large air gap must be achieved on both sides of the guide rail. This version, however, requires a corresponding construction space on both sides of the track. A fixed brake plate, on the one hand, is therefore advantageous when reduced air gaps are sufficient. In this way, it is possible to save construction space, since on one side of the rail only little space is needed. At the same time, this version is also of more advantageous manufacturing.
    [00034] In a brake of this kind, braking can be achieved in a simple way, with the brake shoe retainer, through the applicator set, applied from its ready position to the engaging position, the brake shoe being , integrated in the brake shoe retainer, by means of the applicator set, is pressed against the guide rail.
    [00035] As long as the cab is in a paralyzed state - for example, on a floor - there it is, the brake remains in that engaged position. When the cabin, controlled in an orderly manner, tries to move away from the paralyzed position, the brake will be returned by a command, and the applicator set, in conjunction with the return set, will reposition the brake shoe retainer to its ready position. . This is possible with the use of reduced force because an important compressive force is not yet present.
    [00036] But, if the cab moves unintentionally, from the paralyzed state, or if it is moving, the brake shoe will be automatically rotated along the first partial region of the brake shoe. In this case, the brake shoe retainer, corresponding to the shape of the brake shoe, will be forced in a return movement, especially by the first increase in distance, determined by the first partial region. In this movement phase, an application gap, which arose from the application of the brake shoe, will be compensated again. Up to this point, the applicator assembly, that is, the return assembly may retract the brake shoe retainer at any time, back to the ready position. In this way, small oscillations can be captured or compensated as they can occur, for example, in the process of loading the cabin.
    [00037] If, however, the cab continues to move, there is now an automatic longitudinal displacement of the brake shoe along the second partial region of the brake shoe. In this way, the brake shoe retainer, corresponding to the second increase in distance, determined by the second partial region of the brake shoe, will be additionally forced back. Therefore, through the compression body, a necessary compression force will be formed, which produces a braking of the cabin.
    [00038] According to another aspect of the invention, an actuator is described as advantageously used for the application of the brake described above.
    [00039] The actuator is designed to hold a brake, that is, preferably two brakes, in an elevator cabin, in a ready position, moving them, if necessary, to a coupling position. The actuator contains, in this case, an energy accumulator, a retainer assembly, a return assembly and one, that is, preferably two connection points that interconnect the actuator with the brake, that is, with the brake applicator assembly.
    [00040] Advantageously, the force reservoir will be a molar accumulator that is suitable to act on a point of union, if necessary, moving the brake from its ready position to its engaging position. In this case, the retainer assembly holds the force accumulator and, therefore, a connection point, advantageously through an electromagnet in a first working position, corresponding to the brake standby position, and the return set can again return to the service position or force accumulator, the retaining assembly and the point of union after its activation.
    [00041] Of course, the force accumulator can also be a prestressed pneumatic or hydraulic accumulator that can release its energy in case of need.
    [00042] Advantageously, the force accumulator, the retainer assembly and the connection point cooperate through an activation lever. This activation lever advantageously comprises a first connection point with the first brake and a second connection point with the actuator, with a second brake. The first and possibly the second connection point are advantageously arranged in the activation lever in such a way that the action of the force accumulator will be essentially contracted. The expression "essentially" means that the two joining points do not necessarily need to be contracted against each other, in a straight linear direction, however, for example, when using the activation lever, the two joining points are, in such a way , displaced that a contraction effect appears that produces the application of the brakes. This contraction of the two junction points must be especially understood in such a way that the joints that connect the actuator with the brakes are displaced, against each other, or in the opposite direction, by means of the force accumulator, with what they produce on the two brakes. , that is, on brake application sets, a tractive force.
    [00043] According to an advantageous modality, the actuator also has a damping assembly that absorbs a movement sequence when activating the actuator. In this way, a final shock from the actuator and the knocking noise and material stresses resulting from this terminal shock can be reduced.
    [00044] Advantageously, the return assembly comprises a spindle motor. The spindle motor will advantageously be a reducing motor. Instead of this spindle drive, a hydraulic or pneumatic return assembly can also be used.
    [00045] Advantageously, the actuator covers an emergency release, manually activated. This emergency release of manual activation is foreseen, preferably, as a complement to the return set. In the event of a defect in the return assembly or in the absence of current for a longer period of time, it can be used to manually return the actuator to such an extent that the cab can be stretched. With the expression "distension" in this context it is understood a movement of return of the elevator car from a blocked position as it is seen in the case of emergency braking. Advantageously, this emergency release is so shaped that, for example, the cable is exerted by influencing the connections that connect the actuator to the brake.
    [00046] An elevator system conformed according to the invention now comprises at least one elevator car that is disposable displaceable to at least two guide rails, as well as a braking assembly, mounted in the elevator car. A braking set advantageously comprises at least two brakes as described above and, if necessary, the brakes always cooperate with a guide rail. In addition, the elevator car comprises an actuator, as explained, for example, in the previous description, and which activates the brakes if necessary.
    [00047] In the following, the invention will be explained as an example based on an execution example, in connection with the figures.
    [00048] The figures show:
    [00049] figure 1 - schematic view of an elevator system, in side view.
    [00050] figure 2 - schematic view of the elevator system, in section.
    [00051] figure 3 - perspective view of a brake with an actuator in an elevator car.
    [00052] figure 4 - individual perspective view on a brake.
    [00053] figure 5 - front view of the brake of figure 4 in the ready position.
    [00054] figure 5a - a view of the brake shoe.
    [00055] figure 5b - a variant of the brake according to figure 4.
    [00056] figure 6 - a top view for the brake of figure 4.
    [00057] figure 7 - a front view of the brake of figure 4, in the engaged position.
    [00058] figure 8 - a front view of the brake of figure 4 with the brake shoe turned.
    [00059] figure 9 - a front view of the brake of figure 4 in the braking position.
    [00060] figure 10 - an individualized perspective view of an actuator.
    [00061] figure 11 - a view over the actuator in the non-activated position.
    [00062] figure 12 - a view over the actuator, in the activated position.
    [00063] figure 13 - a view over the actuator on the return.
    [00064] figure 14 - alternative version of the brake from the front, in section.
    [00065] figure 15 - a section in section in the view above the brake of figure 14, and figure 16 - perspective view of the brake of figure 14.
    [00066] For components of similar action, the same reference numbers are always shown in the figures.
    [00067] Figure 1 shows an elevator system 1 in an overview. The elevator system 1 is mounted on a building and serves to transport people and materials within the building. The elevator system comprises an elevator cabin 2 that can move up and down along guide lines 6. The elevator cabin 2 can be accessed from the building through a door. A drive 5 is used to drive and retain the elevator car 2. The drive 5 is integrated in the upper region of the building and the car 2 is suspended with support means 4, for example, support cables, support straps, in drive 5 These support means 4 are guided through drive 5 to a counterweight 3. The counterweight compensates for a mass portion of the elevator car 2, so that the drive mainly only needs to compensate for an uneven weight between the car 2 and the counterweight 3 In this example, drive 5 is located in the upper area of the building. Naturally, it could also be found in another location within the building, or in the area of cabin 2, or in counterweight 3.
    [00068] The elevator car 2 is equipped with a braking assembly 10 that is suitable for holding and / or delaying the elevator car 2, in the event of unexpected movement, in case of excessive speed or at a stop. In the example, the brake set 10 is arranged below the cab 2. The brake set is operated by electricity (not shown). A mechanical speed limiter, as is commonly used, can therefore be dispensed with.
    [00069] Figure 2 shows the elevator system of figure 1 in a schematic top view. Brake set 10 comprises two brakes 11, 11a, an actuator 30 and corresponding connections 40, 40.1, 40.2. The two brakes 11, 11a are preferably shaped identical in their construction and act, if necessary, on the guide rails 6, mounted on both sides of the cab 2. This means that they are able to brake and retain the cab. 2 on the rails 6. The joints can basically be formed as tension or pressure joints. Normally, however, joints in the form of traction joints have been approved in a better way, because in this way the danger of changing joints is eliminated. Thus 40 joints were approved in the form of tie rods, pull cables, Bowden cables or similar pulling means. In the example, a driver 30 is being used which, in the case of an activation, contracts in the direction of reciprocal approximation of the corresponding joints, 40, 40.1, 40.2.
    [00070] In figures 1 and 2 another optional emergency release 50 is provided. The emergency release comprises a pulled cable 51 which is connected below the elevator car 2 with the actuator 30, where it allows an unlocking of the actuator 30 as will be explained later. Above the cab 2, in a easily accessible point, a crank 52 can be mounted. With this crank 52, if necessary, a tractive force can be transferred over the pulled cable 51 to the actuator 30. In normal case, the crank 52 is stored away from the emergency release, so that only trained personnel can activate the emergency release. Pulled cable 51 is routed to actuator 30 on necessary deviations (not shown). Of course, instead of the pulled cable, a Bowden transmission or a pulling rod could also be used or, for example, a manual hydraulic coupling could also be used.
    [00071] The displayed arrangements can be adjusted by the specialist according to the elevator system. The brakes can be mounted above or below the cab 2. Several pairs of brakes can also be used in a cab 2. Of course, the brake set can also be used in an elevator system with several cabs, when each cab has at least one brake set of this type. The brake assembly can, if necessary, also be mounted on counterweight 3, or it can be mounted in an automatic displacement cab.
    [00072] Figure 3 shows a support structure for an elevator cabin 2, in a perspective view, from below. The first brake 11 is mounted on the left side of the cabin support structure 2 and on the opposite side, in the figure on the right side, there is a second brake 11a. The two brakes are of identical construction. Between the two brakes 11, 11a, the actuator 30 is also mounted in the cab 2. The actuator is connected with the brakes 11, 11a through bilateral joints 40, in the example they are connecting bars. The joints 40 are advantageously shaped in an adjustable manner. Therefore, the braking device 10 can be precisely adjusted to a width of the cab 2.
    [00073] If necessary, the actuator 30 pulls the connections 40 in the opposite direction, with which the two brakes 11, 11a act simultaneously. The actuator 30 is arranged in the cabin with horizontal mobility, so that in the balance of the force weight it is essentially centered between the two brakes 11, 11a. This arrangement is also referred to as a floating assembly. For this purpose, the actuator 30 is mounted, for example, on horizontal sliding parts or sliding bars. A positioning assembly 44 (see figures 10 and 11) holds the actuator 30 with reduced force in a defined position.
    [00074] In the example according to figure 3, the actuator 30 is arranged in a decentralized direction. In this way, one side of the joints 40, for example, a first joint 40.1, may be prefabricated in series and only the second joint 40.2, on the other side, will have to be suitable for a dimension of the cabin 2. As it is identical to function of the two brakes 11, 11a, this will be explained below in relation to the brake 11.
    [00075] Figures 4 and 5 show an example of a brake 11, in the so-called standby position, or also in its non-activated position. The brake 22 is also essentially symmetrical again. Therefore, in a brake housing 12 there is a brake shoe retainer 13, 13a left and right and a brake shoe 15, 15a left and right and so on. Then, the constitution and function will only be mentioned on the basis of one side. In this version presented, the brake shoe retainer is shaped like a linearly displaceable brake shoe carriage, which is why the brake shoe carriage 13 will be mentioned next.
    [00076] The brake 11 therefore contains the brake housing 12, the brake shoe carriage 13 and the brake shoe itself 15, a return assembly 16 and a compression spring block 19. The brake shoe carriage brake 13 contains the brake nut 15.
    [00077] Figure 5a shows a brake shoe 15 in detail. The brake shoe 15 has a first partial region 15b. In this first partial region 15b, the brake shoe 15 is essentially shaped like a circle or a snail. The first partial region 15b receives a serrated section for good retention. The circular curvilinear shape of the first partial region 15b is shaped in such a way that it continually increases a distance R from the curve to the mounting axis 17, depending on a turning angle W1, W2 as occurs in a snail. Starting from the mounting axis 17, the brake shoe 15 has an oblong hole 18, which extends along a longitudinal axis 23. In sequence, the first partial region 15b of the brake shoe 15 follows a second partial region 15c rectilinear. The rectilinear shape of the second partial region 15c is so shaped that it further increases a distance S1, S3 from the rectilinear shape to the longitudinal axis 23, depending on a lag of length L1, L2; The second partial region 15c is formed as a sliding / braking region. This can be a ceramic friction lining, mounted on the brake shoe body. In the example shown, the second partial region 15c is integrally integrated into the brake shoe 15 and consists of hardened steel. The brake shoe has a thickness s of about 15 to 30 mm, so that when working with the return rail 6, it can form ideal braking pairs.
    [00078] The brake shoe 15 thus formed is mounted inside the brake shoe carriage 13, through the mounting shaft 17. The brake shoe carriage 13 has side plates 24 that support the mounting shaft 17. Through a rotary slide bearing 25, the brake shoe 15 is arranged on the mounting shaft 17. In this way, the brake shoe 15 can be rotated on the mounting shaft 17, and in the region of the oblong hole 18 it can also be moved longitudinally.
    [00079] A return set 16 (see figures 4 and 5) acts on the brake nut 15 and pulls the brake nut 15 to a horizontal position and, simultaneously, the entire brake shoe 13 against a stop. Said stop will be formed by the compression spring block 19. The compression spring block 19 contains several compression springs 20 that are pre-stressed in the compression spring block 19 to a predefined prestressing force. This readiness position thus results in an air gap f0 of about 3 mm. This air gap is a free distance between the brake shoe 15 and the guide rail 6. It will be selected by the specialist, considering displacement unevenness.
    [00080] The return set 16 - as can be seen especially in figure 6 - is a molar set 21, especially a spiral spring that, by means of deviations, with a traction cable, acts on the brake shoe and retracts it accordingly .
    [00081] Typically a return force, generated by the return assembly, is located around approximately 40 Newtons.
    [00082] In addition, the brake 11 comprises an applicator assembly 12, which, if necessary, can apply the brake shoe carriage 13, that is, the two brake shoe carriages 13, 13a, to the rail - guide 6, thus being able to neutralize the air gap f0. The applicator assembly 22 comprises a lever support 22b which is essentially fixedly attached to one of the brake shoe cars 13a and which has a mounting point for receiving a first lever 22a. The first lever 22a is so shaped that with one end it can compress a compression plate of the other brake shoe car 13. The other end of the first lever 22a is joined by the connection 40 with the actuator 30. As soon as the actuator pulls the first lever 22a, will press the two brake shoe cars 13, 13a, against each other, and neutralize the air gap f0, with which the engagement position will be achieved. In figure 6, the brake is in this engaged position. The air gap in the guide rail 6 region is neutralized and the brake shoe carriage 13 will have been applied to such an extent that between the compression spring block 19 and the brake shoe carriage 13 a gap corresponding to the air gap is formed .
    [00083] Figure 7 shows the brake also in the engaged position. The brake shoe carriages 13 are compressed so that the brake shoes 15 hold the guide rail 6. In this case, it can be seen that the brake shoe carriage 13 now no longer touches the block compression spring 19, however, between the compression spring blocks 19 and the brake shoe carriage 13, a gap corresponding to the air gap appears.
    [00084] As long as the elevator car 2 is in a stopped state, the brake 11 will remain in this engaged position. Upon return of the applicator assembly 22, the brake shoe carriages 13, 13a, through the return assembly 16, can be directly retracted, again, to their ready position and the cabin 2, therefore, will be released for displacement . However, when the cabin 2 moves unintentionally, the brake 11 will be automatically moved to the braked position.
    [00085] In figure 8, the cabin 2, that is, the brake 11, in relation to the guide rail 6, moved in a downward direction. The brake shoe 15 will be rotated on the mounting axle 17, along the first partial region 15b, turning and now abutting the second partial region 15c on the guide rail 6. Due to the increasing radius of the first partial region 15b, the brake shoe carriage 13 will be pushed back. In this way, the preceding air gap f0 between the brake pad carriage 15 and the compression spring block 19 will be neutralized and, according to the example, the compression spring block 19 will be pre-stressed to a minimum extent f2. Until the suspension of the air gap f0, a decisive braking force does not yet appear, as there is still no sequential tension of the compression spring block 19. During this working region, it would therefore always be possible to retract the brake shoe carriage 13 by the applicator set 22 and return set 16, to the ready position, releasing brake 11. This will be useful when sliding and moving away from cabin 2 has to be limited during the loading process. A sliding and moving away of this nature can occur, for example, in the case of an overload of the cabin 2 or also in the event of a failure of elevator components.
    [00086] Therefore, the brake 11 can be predominantly moved at a stopping point, occupying an engaged position, thus avoiding a dangerous slip and removal. As long as there is no slippage in an orderly manner before a withdrawal, the brake 11 can simply be returned again.
    [00087] With the cabin 2 continuing to move, the brake shoe 15, as shown in figure 9, is stuck on the rail 6 by the friction effect between the second partial region 15c and the guide rail 6, being retained on the rail itself rail 6. Through the slewing bearing - sliding bearing shaft 17, the brake 11 moves along the oblong hole 18 and the brake shoe carriage 13, corresponding to the increase in the distance S1 of the second partial region 15c it will be further moved backwards. In this way, the compression spring block 19 continues to be prestressed sequentially until it reaches its terminal tension, corresponding to a buckling f3. This fastening f3 produces a corresponding compressive force which now produces the braking of the elevator car 2. The levers of the application set 22 or the actuator 30 are so shaped that they can support this fastening f3. This can be achieved by free walking, free play or elastic areas.
    [00088] In order to be able to return the brake after the elevator 2 cab stops, cab 2 must be returned, with the result that the coupling process takes place in the reverse sequence. In this case, before the return of the cabin 2, the applicator set 22 will be returned. In this way, on the return of the cabin 2, the brake shoe 15 and the brake shoe carriage 13 will be kept directly in the ready position.
    [00089] According to the conformation of the brake shoe 15, this application and coupling process described above occurs in both directions of displacement, resulting in wedges f1 through f3, corresponding to the shape of the brake shoe 15, ie , the version of the first and second partial regions 15b, 15c of the brake shoe 15. In the case of braking and in the upward direction, smaller braking forces are naturally required. This will be taken into account, with shorter upward path routes being selected.
    [00090] It is evident that the respective braking installations and states of the applicator set are registered in electrical form, that is, by means of position detectors. These status indications will be processed in a command and are used in sequence as fault indications or for sequential elevator control.
    [00091] Figures 10 to 13 show an example of an actuator 30 as it can be used to activate a brake 11, as explained in the previous figures. The actuator retains, on the one hand, the brake 11 of an elevator car, that is, the braking assembly, in a ready position, that is, in its non-activated position (see figure 11). This state is called the closed position of the actuator 30. If necessary, the actuator 30 moves the brake 11 from the ready position to a engaged position. The actuator 30 also returns the brake 11, that is, a corresponding applicator assembly 22, again to a position that makes it possible to return the brake 11 to the ready position. For this purpose, actuator 30 has electrical interfaces for a control that, for example, transmits the corresponding control commands or receives occasional reports on the status of actuator 30 and / or on brake 11. In addition, current accumulators are provided necessary to ensure a function in the event of a power failure.
    [00092] Actuator 30 comprises a force accumulator 31, a retainer assembly 34, a return assembly 36 and one, that is, two connection points 37, 37a that connect the actuator 30 with at least two brakes 11, that is , their application sets 22.
    [00093] Preferably, the force reservoir 31 will be a molar reservoir 32 that is supported at one end through a support point P3 in an actuator housing 30 and the other end of which presses on an attack point P2 against an activation lever 33. By means of a turning point P1, the activation lever 33 is mounted rotatable in the housing and the retainer assembly 34, by means of a latch, which holds a bolt 34a, maintains the activation lever 33 - against molar force of the power reservoir 31 - in the closed position, corresponding to the readiness position of the brake 11. In this case, the bolt 34 is advantageously a pin or a rotatable bushing that is hooked on the hook-shaped ratchet of the retainer assembly 34. This version provides constant friction conditions and, therefore, a constant and reproducible resolution behavior.
    [00094] The activation lever 33 is coupled with a first connection point 37 in a first connection 40, 40.1 and with a second connection point 37a is coupled in a second connection 40, 40.2. Joints 40 - as already described in connection with figure 3 - lead to brakes 11, 11a on both sides.
    [00095] The retainer assembly 34 comprises an electromagnet 35 that secures the retainer assembly 34 in the closed position. If the electromagnet 35 is de-energized, the force accumulator 31 will press the retainer assembly 34's trench again, with which the lock 34a of the activation lever 33 is released (see figure 12). The power reservoir 31 presses the activation lever 33 to the engaged position, whereby the two connection points 37, 37a - considered in a projection - will be pulled in the opposite direction. This means that especially the joints 40, 40.1, as shown in figure 12 with movement arrows, are essentially pulled in the opposite direction, with which the coupling points of the joints 40, 40.1 will be attracted, that is, moved in the opposite direction in the respective application sets 22 of the brakes 11. This contraction will be transferred to the applicator set 22 of the brake 11 (see figure 6). A force of the force reservoir 31 determines, in this arrangement, through the lever effects of the applicator assembly 22 of the brake 11, a compression force of the brake shoe carriage 13 against the guide rail 6. According to experience, this compressive force is approximately 800 Newton. In this way it can be ensured that the brake shoe 15, if necessary, automatically engages when the cab 2 is in motion.
    [00096] Advantageously, 30 lever distances and lever actuation lines are arranged in the actuator housing in the actuation lever 33, that is, the point of attack P2 of the power accumulator 31, in relation to the turning point P1 of the activation lever 33 and in relation to the support point P3 of the force accumulator 31 in the housing, as well as in relation to the connection points 37, 37a, so that the activation of the actuator 30 results in an essentially constant driving force , through an activation course, at joints 40. This is, for example, achieved by the fact that a lever distance from the power line, determined by the point of attack P2 and the point of support P3, in relation to the point of the P1 turn of the activation lever 33, in the non-activated position, is reduced, so that on activation it starts to increase due to the turn of the activation lever 33. In this way, a strain of the force reservoir 31 will be compensated, for example, in virtue of a dist of the molar reservoir 32 by increasing the lever distance.
    [00097] The shape of the retainer assembly latch 34, of the bolts 34a, a holding force of the electromagnet 35 and the force reservoir3 31 are, moreover, essentially so reciprocally synchronized that, with the electromagnet 35 activated, the lever The activation force 33 is held in the closed position and, with the electromagnet 35 switched off, the force accumulator 31 can safely press the retainer assembly 34 backwards. In one embodiment, the electromagnetic holding force is typically about 160 Newtons. An electromagnet of this type requires a reduced potential of only about 2.5 Watt. Therefore, the braking assembly can be operated with direct consumption and is very low.
    [00098] Advantageously, the retainer assembly 34 is shaped in such a way that after release, for example, by means of an auxiliary spring, it is pressed into an open position.
    [00099] In this way, repercussions of the retainer assembly 34 will be avoided. Advantageously, the actuator has a damper assembly 38 that acts as a damper on the movement sequence at the time of application. The damper assembly 38 - it can be the case, for example, of a hydraulic, pneumatic or magnetic damper assembly - is preferably adjusted in such a way that it stops a movement in the terminal region of the application path and, thus, dampens a shock end of the brake shoes with the rail. In this way, a noise formation and also a request for strikes on the material can be reduced. The damping assembly 38 advantageously acts directly on the activation lever 33. Of course, the damping assembly 38 can also be integrated in the force reservoir 31.
    [000100] As shown in figure 13, after an activation, the actuator can again be prestressed back to its ready position. This return action can be carried out automatically, for example, through a brake command set or manually. In the case of an automatic return, the brake control set or a corresponding safety unit will examine, for example, - in the presence of a travel command - the status of the installation, initializing - with a corresponding positive result - a return command for the actuator. A manual return may be necessary when the brake set was activated due to a fault, in order to paralyze the cab, for example, in the event of uncontrolled movement. This normally results in the actuation of a specialist who can then perform the actuator return 30, manually, for example, by activating a switching circuit or - when, for example, electricity is not available - by emergency unlocking 50. Advantageously, the switching assembly is shaped in such a way that in the event of an abandonment of the switching assembly, the braking assembly will be activated again.
    [000101] For the return of the actuator 30 through the switch set, the actuator 30 has the return set 36. The return set 36 consists of a spindle drive with reduction motor 39 and drives a spindle 39a. The retainer assembly 34 with the electromagnet 35 can be moved through the spindle 39a. For the return, the retainer assembly 34 will be extracted through spindle 39a and the retainer assembly 34 latches the activation lever 33, that is, the bolt 34a, released. With the electromagnet 35, a retainer assembly 34 will then be retained. By switching the reducer motor 39, the retainer assembly 34 with the activation lever 33 hooked, will be retracted to the ready position (see figure 11). Together with the electromagnet 36, the retainer assembly 34 will be guided by a conductive lever 43, while traveling to the activation lever 33, until reaching the right position. In this way, the electromagnet 35 can be activated when an activation lever 33 is reached, whereby the retainer assembly 34 secures the activation lever and secures it via bolts 34a. This arrangement ensures that the actuator 30 at any time, also during the return movement - can be directly activated again.
    [000102] The sequencing of the return, that is, the sequence of the reducing motor 39 is controlled by the key 41. A first key 41a recognizes, in the example, the position of the retainer assembly 34. Once the electromagnet 35 has attracted the retainer assembly 34, the first key 41a will be closed. A second key 41b recognizes a position of the reducing motor 34, that is, of the spindle 39a that corresponds to the service position. In the ready position of the actuator 30, corresponding to figures 10 and 11, therefore, both switches 41a, 41b are closed. If actuator 30 is activated, retainer assembly 34 will be opened, releasing activation lever 33. At the same time, the first switch 41a remains open. A first open switch 41a with the second switch 41b simultaneously closed means that actuator 30 is activated. For the return, the spindle 39a, as already described, will be extracted until the retainer assembly 34 can be attracted. This will be verified by the first key 41a, with which the reducing motor 39 will be reversed and, therefore, the retainer assembly 34 with the activation lever 34 hooked will be retracted to the ready position. As soon as the second switch 41b is closed, this will mean that the standby position has been reached and the reduction motor 39 will be switched off. The gear motor 39 with spindle 39a is designed as a high inhibitor unit. In this way, the positioning of the retainer assembly 34 with the activation lever 33 hooked is determined by the return assembly 36 itself.
    [000103] The arrangement of the keys 41 also enables a safe movement sequence, for example, after a power interruption, during the return movement. If, for example, in the event of an activation after a power interruption, both switches 41 are open, the reducer motor 39 will initially be moved back to the operating position. If, now, a safety control releases a corresponding readiness signal, but keeping the first switch 41a still in an open state, it can be verified, that is, automatically start the return of the actuator 30 in a way corresponding to the process described above.
    [000104] Naturally, the working positions of the actuator itself can also be controlled with other switches (not shown), so that control sets have corresponding information about the status.
    [000105] The actuator 30 which can be seen in figures 10 through 13, as well as in figure 1 has an optional emergency release 50. This emergency release 50 makes it possible to return the actuator 30 in such a way that an eventual manual extension is possible if the locked elevator car 2 is made possible. In the example shown, the second coupling 40.2 is connected via a pull chain 49 with a cable drum 53. Through cable 50, the cable drum 53 is connected with the handle 52 (see figure 1). The handle 52 in the example shown is arranged on a roof of the cabin 2, near a front wall of the channel. If necessary, using the handle 52, which for this purpose can be fitted on a corresponding cable roller, the cable drum 53 can be rotated, so that the pulling chain 49, joined with the cable drum 52, the actuation lever 33 retracts over the second connection 40.2. In this way, the actuator 30 can be returned at least to such an extent that the brakes 11, 11a are released, thus extending and therefore the cab 2, ie , can be moved in the direction of moving away from a locked braked position. After this emergency release, the handle 52 will again be released, whereby, advantageously, by means of a spring integrated in the cable drum 53, the cable drum 53 will be rotated in such a way that the pulling chain 49 will be released. The position of the cable drum is advantageously controlled with a third key 42.
    [000106] In the non-activated position of the actuator 30, as shown in figures 10 and 11, the cable drum 33 is turned back and the cable 51 and also the pulling chain 49 are released. Traction chain 49 is loose, so that it does not create obstacles to an activation of actuator 30. The third switch 42 is not activated which means that the emergency release 50 is inactive.
    [000107] In figures 12 and 13, actuator 30 is in an activated state. Correspondingly, the traction chain 43 of the emergency release is essentially prestressed, if necessary, by pulling the cable 31, the grip 40.2 can be pulled. When rotating the cable drum 53, a switching precursor 42a of the key 42 will be pushed back. The electrical operation of the elevator system will then be interrupted, for example, until the cable drum 53 is released again.
    [000108] In an alternative mode of the brake, according to figures 14 to 16, the brake shoe retainer is formed as the brake shoe lever 113. The essential functions correspond to the explanations related to the execution example according to figures 4 to 9. Instead of the brake carriage, the brake shoe lever 113 will be used. The brake shoe lever 113 is arranged in a brake housing 112, rotatable about a horizontal pivot axis 126, and a brake shoe 115 is integrated in this brake shoe lever 113. A retraction assembly 116 pull the brake shoe lever 113 - as shown in the previous examples, the brake shoe carriage in the direction of the removal of the guide rail 6. Using the applicator assembly 122, if necessary, the brake shoe lever 113 it can be applied together with the brake shoe 115 on the guide rail 6. As already explained in the previous examples, the brake shoe 115 has a first partial region 115a and a second sequential partial region 115b. In its lower region, the lever of the brake shoe 113 is supported by a compression spring block 119 in the housing 112, with which, when rotating, that is, displacement of the brake shoe 115, leaning against a guide rail , over the first and second partial region 115a, 115b a corresponding compressive force will be formed. The brake shown is essentially of symmetrical construction. This means that on both sides of the guide rail 6 there is a brake shoe lever 113, 113a. To control the working position of the brake shoe 115, that is, the brake shoe lever 113, in the example, one of the retractor assemblies is provided with a control key 127.
    [000109] If necessary, the brake shoes 115, that is, the brake shoe lever 113, 113a, will be applied through the applicator set 122. For this purpose, the applicator set 122 will be activated, for example, by an actuator 30, through connections 40 (see figure 15). Actuator 30 acts on a first lever 122a of applicator assembly 122. Through a pivot point, the first lever 122a is joined with a second lever 122b. Preferably, the second lever 122b is pivotally joined with mounting shaft 117. The first lever 122a presses with a knee piece 122c against a second mounting shaft 117a of the second brake shoe 115a. In this way, the two mounting axles 117, 117a and with them the two levers of the brake shoe 113, 113a will be moved in the opposite direction with the brake shoes 115, 115a, being compressed against a guide rail 6. Also this The application function is also used in this sense, also on the brake according to figures 4 to 9 and it is also suitable for the combined action with actuator 30, according to figures 10 to 13.
    [000110] Knowing the present invention, the elevator specialist can change at random the stipulated shapes and arrangements. Examples, instead of the symmetrical arrangement shown, the two brake shoe cars 13, 13a, 113, 113a and two compression spring blocks 19, 19a, 119, 119a, compression spring blocks 19, 119, only arranged on one side, while the other side is, for example, rigidly supported or can be mounted in the opposite direction to a rigidly supported brake shoe carriage 13, 113, a fixed brake plate 14 and supported by a compression spring block 19a. Figure 5b shows a conformation of this nature. On one side, on the left side of the figure, is a brake shoe car 13 and on the other side, on the right side in the figure, is a fixed brake plate. The carriage of the carriage shoe 13, by means of an applicator set, can be pressed against the guide rail, with the result of the activation sequence already described. Different in relation to the symmetrical arrangement, however, the entire brake housing will be displaced by the geometry of the brake shoe, with which the fixed brake plate will be drawn against the rail. The fixed brake plate is mounted on the compression spring block 19, so that a corresponding springing, which is determined by the geometry of the brake shoe, results in a predetermined compression force.
    [000111] Also the components used in the description of the actuator 30, preferably such as the traction chain and the traction cable, may be replaced by the specialist with components of identical action, such as other traction means or possibly pressure, or instead of cable drums and skeins, corresponding lever systems may also be used. Also the values mentioned in the description, such as the holding force of the electromagnet and so on, are for information purposes. They will be determined by the specialist by considering the selected materials and shapes.
    [000112] Alternatively, for example, joints 40, 40.1 can also be pulled against each other, using a lever system in the form of a hole. A force accumulator presses this process, if necessary, at two points of opposite corners of the hole, moving them apart, with which the two remaining points of the hole will necessarily be contracted. The joints 40, 40.1 are, in this case, coupled to these two other corner points of the hole.
    权利要求:
    Claims (15)
    [0001]
    1. Brake for mounting in an elevator car (2) of an elevator system (1) suitable for braking on a guide rail (6), preferably in two opposite travel directions, the brake covering , a brake housing (12, 112), a brake shoe (15, 15a, 115, 115a) with a first partial region (15b, 115b), and with a second partial region (15c, 115c), with a retainer brake shoe (13, 13a, 113) with a mounting shaft (17, 117) to receive the brake shoe (15, 15a, 115, 115a), characterized by the fact that the brake shoe (15, 15a , 115, 115a) is rotatable and movable on the brake shoe retainer and the brake shoe (15, 15a, 115, 115a) in the first partial region (15b, 115b) is rotatable around the mounting axis (17, 117) and, in the second partial region (15c, 115c), it is longitudinally movable in a transverse direction towards this mounting axis (17, 117), the brake shoe retainer (13, 13a, 113) being mounted d movable in the housing (12, 112) between a standby position and a latching position.
    [0002]
    2. Brake according to claim 1, characterized in that the brake shoe (15, 15a, 115, 115a) is so arranged that after turning over the first partial region (15b, 115b) it is longitudinally displaceable over the second partial region (15c, 115c) on the brake shoe retainer (13, 13a, 113).
    [0003]
    3. Brake according to claim 1 or 2, characterized by the fact that the brake (11, 11a, 111) also contains a return assembly (16, 116) that holds the brake shoe (15, 15a, 115, 115a) and / or the brake shoe retainer (13, 13a, 113) in the ready position with the brake not activated.
    [0004]
    Brake according to any one of claims 1 to 3, characterized in that the brake shoe (15, 15a, 115, 115a) has an essentially circular and curved shape in the first partial region (15b, 115b) in the second partial region (15c, 115c) it has an essentially straight shape.
    [0005]
    Brake according to any one of claims 1 to 4, characterized in that the first partial region (15b, 115b) of the brake shoe (15, 15a, 115) is so shaped that a distance (R) the curve towards the mounting axis (17, 117) increases depending on a turning angle (W1, W2) and the rectilinear shape of the second partial region (15c, 115c) is so shaped that additionally increases a distance ( S1, S2) of the rectilinear shape towards the mounting axis (17, 117), depending on a longitudinal displacement (L1, L2).
    [0006]
    6. Brake according to any one of claims 3 to 5, characterized in that the brake (11, 11a, 111) also contains a compression spring block (19, 119) with compression springs (20, 120) and these compression springs (20, 120) are designed for a previously adjustable prestressing force in the compression spring block (19, 119) and the brake shoe retainer (13, 13a, 113), in the standby position, by means of the return set (16, 116) it is positioned in contact with the compression spring block (19, 119).
    [0007]
    7. Brake according to any one of claims 3 to 6, characterized in that the return assembly (16, 116) is a molar assembly (21, 121) acting on the brake shoe (15, 15a, 115) which pulls the brake shoe (15, 15a, 115) and, therefore, the brake shoe retainer (13, 13a, 113), to the ready position.
    [0008]
    8. Brake according to any one of claims 1 to 7, characterized by the fact that the brake (11, 11a, 111) also contains an application set (22, 22a, 22b, 122, 122a, 122b) that displaces the brake shoe retainer (13, 13a, 113) from the ready position to the engaged position.
    [0009]
    Brake according to any one of claims 4 to 8, characterized in that the brake shoe (15, 15a, 115) is so shaped that on both sides of the circular curvilinear shape of the first partial region (15b, 115b) a second rectilinear partial region (15c, 115c) follows in such a way that a distance (R, S1, S2) of the curve and the rectilinear shape increases in the direction of the mounting axis (17, 117), depending on the angle of rotation (W1, W2), that is, of the longitudinal displacement (L1, L2), and the increase in distance (R, S1, S2) is variable depending on a direction of rotation and a subsequent direction of travel length of the brake shoe (15, 15a, 115).
    [0010]
    10. Brake according to any one of claims 1 to 9, characterized by the fact that the brake (11, 11a, 111) has two brake shoe retainers (13, 13a, 113) with brake shoes and these components are essentially mounted in a symmetrical arrangement in the brake housing (12, 112), in a reciprocally opposite position, so that in the action combined with the guide rail (6), said guide rail (6) extends between the two retainers of brake shoe (13, 13a, 113, 113a) with corresponding brake shoe (15, 15a, 115, 115a).
    [0011]
    11. Brake according to any one of claims 1 to 9, characterized by the fact that the brake, in addition to the brake shoe retainer (13, 113), with the brake shoe (15, 115), has a plate fixed brake (14), opposite the brake shoe retainer (13, 113), so that in the action combined with the guide rail (6), the guide rail (6) extends between the brake shoe retainer brake (13, 113) with the corresponding brake shoe (15, 115) and the fixed brake plate (14).
    [0012]
    12. Process for braking an elevator car by means of a brake (11, 11a, 111), as defined in any of claims 1 to 11, the brake (11, 11a, 111) being mounted on the an elevator car (2) and this elevator car (2) is mounted movable along guide rails (6), covering the steps, - application of a brake shoe retainer (13, 13a, 113) by means of of an application set (22, 22a, 22b, 122, 122a, 122b), from a standby position to a latching position, with a brake shoe (15, 15a, 115), integrated within the shoe retainer brake (13, 13a, 113), by means of the application set, is pressed against the guide rail (6); characterized by: - rotation of the brake shoe (15, 15a, 115) along a first partial region (15b, 115b) of the brake shoe (15, 15a, 115) and coercive return of the brake shoe retainer (13 , 13a, 113) corresponding to a first increase in distance (R), determined by the first partial region (15b, 115b) of the brake shoe (15, 15a, 115); e - longitudinal displacement of the brake shoe (15, 15a, 115) along a second partial region (15c, 115c) of the brake shoe (15, 15a, 115) and additional coercive return of the brake shoe retainer (13 , 13a, 113), corresponding to a second increase in distance (S1, S2), determined by the second partial region (15c, 115) of the brake shoe (15, 15a, 115).
    [0013]
    13. Elevator system with an elevator car (2), characterized by the fact that the car (2) is provided for displacement along at least one guide rail (6) and with a brake set (10), mounted in the elevator car (2), having at least two brakes (11, 11a, 111), as defined in any one of claims 1 to 11, which, if necessary, cooperate with guide rails (6).
    [0014]
    14. Elevator system with an elevator car (2), according to claim 13, characterized by the fact that it also features an actuator (30) to activate the two brakes (11, 11a), the actuator ( 30) at least comprises a power reservoir (31), a retainer assembly (34), a return assembly (36) and at least two connection points (37, 37a) to join the actuator (30) with the brakes (11, 11a, 111) and the retaining assembly (34) holds the power reservoir (31) and the connection points (37, 37a) in a first service position corresponding to a position of readiness for the brakes (11, 11a, 111), and the power reservoir (31), if necessary, acts on the connection points (37, 37a) to move the brakes (11, 11a, 111) for the purpose of their activation and for displacement to a corresponding coupling position, and the return set (36) repositioning the force reservoir (31), the retaining set to the first working position (34) and the connection points (37, 37a), after the brakes are activated (11, 11a, 111).
    [0015]
    15. Elevator system with an elevator car (2) according to claim 14, characterized by the fact that the power reservoir (31), the retainer assembly (34) and the connection points (37m 37a) cooperate through an activation lever (33) and this activation lever (33) has a first connection point (37) for connection with a first brake (11, 111), as well as a second connection point (37a) to provide the connection of the actuator (30) with a second brake (11a, 111a) and, in addition, the first and second connection points (37, 37a) are so arranged in the activation lever (33) that the joints with the brakes are essentially pulled in the opposite direction, under the influence of the force reservoir (31).
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    同族专利:
    公开号 | 公开日
    US8991561B2|2015-03-31|
    WO2011113753A2|2011-09-22|
    BR112012023034A2|2016-05-17|
    BR112012023027A2|2016-05-31|
    BR112012023034A8|2017-10-17|
    CN102791603A|2012-11-21|
    WO2011113753A3|2012-02-23|
    WO2011113754A1|2011-09-22|
    ES2585817T3|2016-10-10|
    CN102791604A|2012-11-21|
    EP2547617B1|2017-05-10|
    EP2558396A1|2013-02-20|
    CN102791603B|2015-12-16|
    EP2547617A2|2013-01-23|
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    法律状态:
    2019-01-08| B06F| Objections, documents and/or translations needed after an examination request according art. 34 industrial property law|
    2019-10-29| B06U| Preliminary requirement: requests with searches performed by other patent offices: suspension of the patent application procedure|
    2020-08-25| B09A| Decision: intention to grant|
    2020-12-15| B16A| Patent or certificate of addition of invention granted|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 11/03/2011, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    EP10156865.7|2010-03-18|
    EP10156865|2010-03-18|
    PCT/EP2011/053669|WO2011113753A2|2010-03-18|2011-03-11|Elevator system having a brake device|
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