• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    KEY, CYLINDER LOCK AND CYLINDER AND KEY LOCK COMBINATION. The present invention relates to a key (1) and a cylinder lock, which are shaped so that the insertion of the key in the keyhole and the key channel occurs precisely and is easy to handle. The precise positioning of the key in the cylinder lock and its parts allows for an even distribution of forces directed to the key and cylinder lock.
    公开号:BR112014016570B1
    申请号:R112014016570-0
    申请日:2013-02-14
    公开日:2021-01-12
    发明作者:Peder Uljens
    申请人:Abloy Oy；
    IPC主号:
    专利说明:

    Technical field
    [001] The present invention relates to a disk cylinder key and lock, as well as a combination of both. In particular, the invention relates to a disk cylinder key and lock, where inserting the key in the cylinder lock key channel rotates the disk cylinders from their locking positions to a certain position, in which the cylinder lock is unlocked. Prior art
    [002] In disc cylinder locks, discs are used to form the “locked” state of the cylinder lock. This state can be opened using the correct key, which will rotate the disc cylinders to a position, in which the cylinder lock will be unlocked. This “unlocked” state means that the cylinder cylinder's internal cylinder can be turned by the key. At the same time, an element incorporated in the inner cylinder, such as a lever or shaft, turns a screw, for example, with additional guides. Cylinder locks can be incorporated, for example, into lock bodies intended to be installed on doors, or on the body of a padlock. Cylinder locks are widely used to guide the locking pin for door locks.
    [003] It is known that the simple insertion of a key in the key channel does not rotate the disk cylinders to the unlocked position, but that, instead, the key still needs to be turned approximately 90 degrees. The invention does not refer to these types of disk cylinder locks or their keys, but rather to disk cylinder locks and keys where inserting the key into the key channel rotates the cylinder disk to the unlocked position. Cylinder locks for use with keys provided with milled guide grooves are known. The key is inserted axially (towards the key axis and the key channel) in the lock and this movement, through the key guide grooves, affects the cylinder lock disks, rotating them to a position, ie , up to the unlocked position, which releases the locking mechanism of the cylinder lock and allows the inner cylinder of the lock to rotate, that is, the drum, in relation to the surrounding cylinder body. The cylinder body is usually fixedly incorporated into the mechanism, the door lock or the corresponding item to be opened or closed by the cylinder lock.
    [004] Patent publications SE329104 and US6758074 describe these types of disk cylinder locks and their keys. In both publications, a groove or grooves are seen on the surface of the key shaft, which, through the cylinder disc pins, guide the cylinder discs to the unlocked position when the key is inserted into the cylinder lock, and, correspondingly, up to the locking position, when the key is removed from the cylinder lock.
    [005] The problems with known solutions have been reliability and ease of use. The cylinder key and lock wear is uneven on different surfaces. Uneven wear, in turn, causes functional disturbances, particularly in old cylinder keys and locks. Production can also be difficult, which increases production costs. Inaccuracies of the guide grooves (particularly in cases of guide grooves positioned side by side, or at intersection) can cause malfunction. summary
    [006] The purpose of the invention is to provide an alternative solution for a disk cylinder key and lock that reduces the above problems. The purpose of the invention is achieved in the manner presented in the independent claims. The dependent claims have different configurations of the invention.
    [007] A wrench according to the invention has two guide grooves to rotate the cylinder discs. The part of the key to be inserted in the lock (the part of the key shaft) has a basic shape, primarily cylindrical, having a cylindrical sector for each of the two guide slots, which are primarily arranged diametrically, in relation to each other, to their respective sides, in the key. This design makes the key resistant, and the basic cylindrical shape uses all the available space, until the part of the key to be inserted into the lock, that is, the surface of the areas available for the key's guide grooves are maximized. In addition, it is easier to shape the guide grooves, ideally, arranging them on a surface whose shape corresponds to the shape of the central opening of the cylinder discs. In addition, this basic cylindrical shape supports and guides the cylinder discs, and the transfer of force to them from the key occurs efficiently, due to the maximum possible key radius. The key axis comprises a central cylindrical longitudinal cavity, and torque transferring longitudinal guide surfaces on both sides of the cylinder sectors intended for the guide grooves. The axis of the wrench also comprises a lateral cut that extends to the central cavity, being, preferably, narrower than these, and also comprises edge surfaces, formed as torque transfer guide surfaces, which, together with the wrench , are intended to collaboratively serve as a guide for the cylinder lock.
    [008] The cylinder lock comprises an external lock housing, and inside this there is an internal rotating cylinder, which includes a series of rotating cylinder discs. The cylinder discs are arranged to lock and, correspondingly, to unlock a locking rod that moves radially in the lock, which, in the locking position, is arranged in order to prevent the rotation of the inner cylinder, with respect to the housing the lock and, in the unlocked position, is arranged to release the rotation of the internal cylinder, in relation to the lock housing. The cylinder discs have a central opening that is dimensioned to allow axial insertion and extraction of the key. Through the radial projections, that is, the pins of the central opening of the cylinder discs, the key guide grooves actuate the cylinder discs, by means of rotating force, to position the cylinder discs in the unlocked position or, correspondingly, lock the locking rod as soon as the key is inserted into the lock, and as soon as the key is removed from the lock. The lock also has elements arranged to join and centralize the cylinder discs, with respect to the inner cylinder, at the moment the inner cylinder is rotated, with respect to the lock housing, by the torque transfer transmitted by the key.
    [009] The term “key in the rough” means a key whose transverse shape (key profile) is predetermined, but which lacks the machining corresponding to a given lock combination. For simplicity, this description mainly uses only the term “key”. But it should be noted that this term refers, mutatis mutandis, also to the rough keys. Description of the drawings
    [0010] Following, the invention is described in more detail, with reference to the attached schematic drawings, where:
    [0011] Figure 1 is an expanded perspective view exemplary of a lock according to the invention;
    [0012] Figure 2 is an exemplary perspective view of a key according to the invention;
    [0013] Figure 3 is a cross-sectional view of figure 2, along with line II - II;
    [0014] Figure 4 is an exemplary diagrammatic view of the set of guide slots;
    [0015] Figure 5 shows another example of the transverse shape of the key;
    [0016] Figure 6 is a cross-sectional view of part of a lock, according to figure 1;
    [0017] Figure 7 is an axonometric view of a cylinder disk, for a lock according to the invention;
    [0018] Figure 8 is a cross-sectional view of a cylinder disk pin;
    [0019] Figure 9 is a diagrammatic view of a cylinder disk pin disposed against the guide grooves of a key; and
    [0020] Figures 10A-10D show different possibilities for installing a cylinder disc according to the invention. Detailed Description
    [0021] Figure 1 shows parts of a cylinder lock according to the invention. Other parts, such as the locking ring, are known. Key 1 of the lock is shown in two positions. The key has a key head 2 and an axis 3 to be inserted into the lock, the axis having primarily a transversely circular shape (key profile) and having a guide groove 15 on each side. The key 1 is for use with a cylinder lock, whose cylinder body 4, which has a cylindrical internal surface, includes a rotating drum, that is, an internal cylinder, which has a part 5 shaped like a cylindrical section, which it also comprises the cylindrical head 9 of the drum, incorporated in the exit shaft 7 of the lock. The cylindrical casing part 6 of the drum, i.e. the inner cylinder, forms a complementary part of the drum body 5. When the lock is assembled, the casing part 6 or the corresponding body section 5 can form an easily accessible base for positioning the spacer plates 13 and cylinder discs 17 of the lock. Both part 5 and part 6 of the drum have internal grooves 22, which are positioned the spacer plates 13. The grooves 22 hold the spacer plates 13 axially and, through them, also hold the discs of the cylinder 17. The edges of the parts 5 and 6 may also be provided with grooves.
    [0022] In the next stage of assembly of the lock, the wrapping part 6 is positioned against the graduation 8, in the body, which means that the body 5 and the wrapping part 6 together form an even less complete cylindrical surface. In this way, two axial spans are created between the body part 5 and the casing part 6, whose cylindrical surfaces form an extension of the cylindrical head 9 of the body part, dimensioned to correspond to the cylindrical internal surface of the cylinder body 4. The parts 5, 6 and 9 of the drum are held in place, within the cylinder body, by some suitable means, such as a Seeger or corresponding retaining ring. The cylinder body 4 is usually fixed directly to the locking housing of the door lock, whose functions it must guide, through the cylinder lock.
    [0023] The cylinder lock, according to figure 1, has ten spacer plates 13 and, among these, nine cylinder disks 17. The lock also comprises a locking rod 20, which can be moved radially in the axial span 16 body part 5 of the drum. The spring 21 carries the locking rod 20 radially outwardly, towards the locked position, in which the locking rod 20 is partially in the gap 16 and partly in the groove, on the cylindrical inner surface of the cylinder body 4. The cylinder discs 17 keep the locking rod 20 in this position, which in this case prevents the rotation of the barrel 5, 6 and the exit shaft 7 of the lock, with respect to the cylinder body 4. When the key 1 of the lock is inserted into the the lock rotates, with its guide grooves 15, the cylinder discs 17 to a position that allows the locking rod 20 to remain in the unlocked position. The barrel 5, 6 and the output shaft 7 of the lock can then be rotated with respect to the cylinder body 4.
    [0024] The spacer plates 13 are secured in a non-rotating manner, in relation to the drum, by flaps 14 that emerge radially from the spacer plates, these flaps being fitted in the axial spans formed between the body part 5 and the wrapping part 6 the drum. In the middle of the flaps 14 there is a recess 24 for the fixing rod 19. The spacer plates 13 have a central opening 23, whose shape defines which key profile can be used, and in which position the key 1 can be inserted in the lock. Inside the front wall 43 of the cylinder body 4, there is a profile plate 18 incorporated in the drum 5, 6, and said profile plate, in the same way as the spacer plates 13, defines the profile of the key and the position operating of the key 1. The spacer plates 13 also have a locking rod recess radially directed 25 to a point 90 ° away from the location of the recesses 24 intended for the fixing rods 19. When the key 1 is inserted into the lock and when it, with its guide grooves 15, rotates the discs of the cylinder 17 to a position that allows the locking rod 20 to move radially inward, and thus detach itself from the cylinder body 4, the drum 5, 6 can rotate in the cylinder body 4. The force transfer from key 1 to the lock's output shaft 7 occurs at this time, from key 1 to the spacer plates 13 and from these to the drum 5, 6 and to the axis 7, and of these for the door lock, which must be mechanically specifically incorporated into axis 7.
    [0025] Although an internal cylinder formed of two main parts is presented above, that is, divided into two parts, it will also be possible to form a solid internal cylinder, where the joining of the spacer plates to the internal cylinder will occur through a notch or cutting the inner cylinder.
    [0026] The cylinder lock, according to the invention, then comprises parts 19, and when the drum is released by means of the key, with respect to the cylinder body, these parts are arranged in order to secure and centralize the cylinder discs, in relation to the drum, when the drum is rotated, in relation to the cylinder body, using the torque transfer transmitted by the wrench (figure 6). Through this, the advantage is obtained that all the cylinder discs are locked in a precisely defined position, in relation to the drum, which eliminates all the radial clearance between the cylinder discs and the drum. To summarize, the pin position of the cylinder discs is precisely defined, making it considerably easier to form a key, so that the force between the key and the pins of the spacer plates is evenly distributed to all pins. Fixing and centering the cylinder discs in relation to the drum, as described, provides yet another additional advantage. In this case, the lock withstands any break-in attempts exceptionally well. When the cylinder discs are securely attached, it is virtually impossible to try different tools to find out the position of the cylinder discs that unlock the locking mechanism.
    [0027] The fixing and centering of the cylinder discs on the drum can be reliably obtained by placing two fixing rods 19 between the cylinder body and the cylinder discs, which must be located within a circumference of approximately 90 ° distant the locking rod of the lock. Through the groove on the internal surface of the cylinder body, the fixing rods are positioned to be guided radially inward, in locking contact with the cylinder discs already in connection with the initial rotation of the drum. For each fixation rod, a notch or a corresponding notch-like guide surface is installed on the drum, which may be formed by recesses in a series of fixed plates - which may be spacer plates, for example - arranged axially one after the another, normally positioned between the cylinder discs, in a cylinder lock.
    [0028] To intensify the fixing effect of the fixation rods, the sides of the rods that point radially inward are suitably made in a way that will narrow radially inward and the cylinder discs are provided with recesses that extend radially inward , which, in the contact area, correspond to the shape radially facing the sides of the fixation rods. As the cylinder discs, due to their function, can only take a limited number of defined turning positions to allow the rotation of the drum, it is easy to provide each of these with recesses for the fixing rods, with respect to the positions of turning.
    [0029] In figure 2, the key is marked with the number 1, which has a key head 2. From key head 2 extends the axis 3, intended to be inserted in the cylinder lock and which primarily has a transverse circular shape (key profile). At the free end of shaft 3 there is a central axial perforation 36. The centrally located axial perforation can be used to define different profiles of the key. The perforation also provides an exceptionally suitable support surface for fixing the key, as the key's guide grooves are milled. “Drilling” generically means a hole, and this hole can be obtained by any means.
    [0030] Axis 3 has two guide slots 15a and 15b. Each of them rests in its own cylindrical sector 37a, 37b. The guide grooves 15a and 15b are between the key head 2 and the inner end 36a of drilling 36, one connected to the other through a transverse groove 8c, which has no significance for the function of the key, but which has been included for that both guide grooves 15a and 15b could be milled continuously.
    [0031] The cylinder discs have a pin designed to capture one of the guide grooves 15a and 15b. When axis 3 of key 1 is inserted into the cylinder lock, the guide grooves 15a and 15b guide, through these pins, the corresponding cylinder disks, so that they rotate and take a position that overlaps the preventive measures of the lock cylinder. The key axis 3 also has axially protruding guide surfaces and torque transfer 39, on both sides of the cylindrical sectors 37a, 37b, reserved for the guide grooves 15a and 15b.
    [0032] Figure 3 is a cross-sectional view of axis 3 of the key. The axis 3 has primarily a circular transverse shape (key profile) being diametrically opposed to each of the two cylindrical sectors 37a, 37b, each of which having a guide groove, 15a and, correspondingly, 15b. The cylindrical sectors are formed to give radial support to the cylinder lock disks. It will be practical for each sector to be at least 84 °. However, if possible, depending on the implementation, it is good that the cylindrical sector is at least 110 °. Reserving an adequately large sector for the guide grooves in the key can add precision to the milling of the guide grooves and so that the turning movement of the cylinder discs can be controlled with the desired precision. Also shown in figure 2, the side cut 10 extends down to the hole 36, but it is narrower than this, so that the hole 36 has a continuous cylindrical sector 11, being practical that it is at least 200 °, preferably at least 260 °. The edge surfaces 12 of the side cut 10 are shaped as torque transferring guide surfaces and are intended to transfer torque through the spacer plates of the cylinder lock to the lock drum. Other torque transferring guide surfaces 39 are located within two diametrically opposite parts of the key 3 axis and are primarily radially directed. The guide grooves 15a and 15b have a transverse shape that expands out of the bottom 15 of the groove, the sides 16a of the guide grooves being at an angle β of 20 ° - 45 °, with respect to each other.
    [0033] Perforation, as well as dimensioning and drawing of the side cut, can be used to define different key profiles. In the manner presented above, a primarily symmetrical distribution of the driving forces and loads created by the said forces is created. It is good that the torque transfer guide surfaces are primarily directed radially. This will avoid radial loads caused by the activities of the guide surfaces.
    [0034] The theoretical assembly of the guide grooves can be better observed from the diagrammatic visualization of figure 4, where a part of the second cylindrical sector 470 is shown, in the view plane. The guide groove is marked by a dotted line, and the locations L1, L3, L5, L7 and L9 of the cylinder discs guided by this groove are marked. All oblique sections 414 of the guide groove follow a spiral curve with the same step S. Properly, the step S should be below 50 ° for a key with a shaft diameter of 6 mm.
    [0035] In general, in these axial locations of the guide grooves, in which the guide grooves should guide a particular cylinder disc (location of the combination), the guide grooves have a section 13a that extends axially (towards the key axis), which, at its end point 417, near the perforated end of key 1 (left, in figure 4), changes directly into an oblique groove section 414. A result of this design is a balanced transfer of force , in connection with the pin of the cylinder disk, which the guide groove comprises, in the combination location in question.
    [0036] In cases where, moving from one combining location to the next combining location, the guide groove cannot reach the next combining location following the constant pitch spiral curve, which is characteristic of the groove assembly. guide, the guide groove according to the invention is shaped to contain the axially designed intermediate section 413b. This way it is not necessary to deviate from the general design principles of the guide groove, which are based on axial sections 413a, 413b and spiral sections 414 provided with constant pitch S.
    [0037] In order for the purpose of the invention to be achieved in a simple way, it will be preferable to shape the guide grooves of the key so that they comprise, in addition to the axially extending sections, also oblique sections, where the latter follow, all of them, a spiral curve with constant pitch. When a spiral that always has the same pitch is selected, the milling of the guide grooves is simplified, because the angle adjustment will be constant, with each oblique milling.
    [0038] To obtain a good contact over the relatively large contact area between the cylinder disc pins and the key guide grooves, it will be advantageous that each axial location of the key guide grooves, corresponding to a cylinder in the lock guided by the guide groove (place of combination) has an axially extended section which, at its end point near the innermost end of the key, changes directly to one of the said oblique sections. The concept "innermost end of the key" means the end of the key that extends deeper into the cylinder lock.
    [0039] In many cases, two consecutive combining locations are so close together that, between their respective locations, the guide grooves of the key cannot follow a spiral that has only the selected pitch for the system. In said cases, according to the invention, the spiral section can be divided so that a section with an axially extending groove is arranged between the spiral sections closest to the combination locations. In this way, the principle that oblique groove milling is only one type can be followed, which in turn ensures that the contact pattern between the guide groove and the cylinder disc pin is always the same .
    [0040] By giving the guide grooves a transverse shape that expands outwards, from the base of the groove the advantage is obtained that the groove will remain clean more easily. The sides of the guide grooves should preferably be at an angle of 20 ° -45 °, against each other. It follows that the grooves will remain clean and will sit well against the cylinder disc pins.
    [0041] When the part of the key to be inserted into the lock is extending over the torque transferring guide surfaces, on both sides of the cylindrical sectors intended for the guide grooves, there will be the advantage that the key will be precisely guided , in the lock, which, in turn, will be advantageous for a uniform distribution of force transfer, in connection with the pins of the cylinder discs. Primarily, the same advantages are obtained when the torque-transferring guide surfaces are within two diametrically opposite parts of the wrench, being radially directed.
    [0042] Figure 5 shows how the keys, according to the invention, can be shaped to have another key profile, deviating, for example, from figure 3, so that the use of sets of keys and series of keys larger keys can be totally prevented, in the said cylinder locks. In this way, the same lock combinations can be used for different series, without compromising the security of the lock. This possibility of modification is especially important in the production of key sets in the rough, as a lock manufacturer will be able to easily modify his locks, for certain key profiles, and benefit from the fact that he keeps key sets available for which the area of application is strictly limited. The key profile in figure 5 deviates from the key profile shown in figure 3 in that the side cut and perforation are modified as a deep notch 10a. This is just an example. Deviations from the design can also be used in other ways.
    [0043] As can be seen from figure 6, the most radially expanded part of the fixing rods 19 is positioned in the slot groove 26 of the cylindrical inner surface of the cylinder body. The grooves 26 have an oblique side surface 27, which, in the initial rotation of the drum 5, 6, forces the clamping rods 19 to move radially inward, towards the discs of the cylinder 17. In this case, the edge wedge-shaped inner part 28 of the clamping rods 19 presses, together with the cylinder discs 17, in the same way, from the shaped recesses 29, as a result of which the cylinder discs 17 are centrally attached to the drum 5 , 6. The fastening rods 19 are located opposite each other, at a point 90 ° away from the location of the locking rod 20 of the lock.
    [0044] The cylinder disk 17 shown in figure 7 has a primarily circular central opening 30, dimensioned to be in close contact with the cylindrical sectors 37a and 37b of the lock key 1, with the cylinder disks 17 being radially guided by middle of the key. Each of the cylinder disks 17 has a pin 31 in the central opening 30, intended to operate from one of the guide grooves 15 of the key, the pin extending and narrowing from the cylindrical interface 32 of the central opening 30 , radially inward. The pin 31 has chamfers 33, so that the guide slots 15 of the key can better adhere to it. The cylinder disk 17 has, next to the central opening 30, an annular expansion 34, which forms a thin belt, with which the disk of the cylinder 17 can be in contact, against the adjacent spacer plate 13. When the contact with this belt If it has a small radius, it is limited, the frictional forces that could considerably affect the discs of the cylinder 17 are reduced.
    [0045] The disks of cylinder 17 whose pins 31 are on the other side of the central opening 30, are guided by one of the guide grooves 15 of the key 1, and the disks of cylinder 17 which are on the side opposite the central opening 30 are guided through the other guide groove 15a, 15b of the key 1. In this case, the guide concept of the cylinder disk means that the cylinder disk 17 is rotated by the key 1 to a certain position, which allows disarming the locking function of the lock. The disks of cylinder 17 are arranged in the lock alternately, where one disk 17 has a pin 31 on the right and the next has a pin 31 on the left. The distance between these points, to which the guide groove 15 of the key must be attached to the pin of the cylinder disc 31, then corresponds to the distance between each disc of the alternating cylinder 17, which allows the use of greater turning angles for the cylinder 17 discs. This technology makes it even easier to mill the guide grooves 15 of the key.
    [0046] It is important that the cylinder disc pins, whose function, together with the guide grooves of the key, have a shape that makes the pins sit so well in the guide groove that they are not subject to large cutting loads too much. The seat must simultaneously support the desirably uniform load of the pins. The transverse shape of the pins should suitably have two substantially parallel lateral lines, extending vertically, in relation to the plane of the cylinder discs, and said lateral lines, at each end, change to an oblique chamfer, where the angle and the dimensions of the chamfer should be professionally adjusted so that it is seated against the oblique part of the guide groove of the lock key, and also to withstand the transfer of force that will occur there. Additionally, it will be advantageous for the transfer of force that occurs from the guide grooves of the key to the pins, that they narrow radially inwards, in order to present a professional fit, in relation to the shape of the guide grooves of the key of the lock, where said guide grooves will, for practical reasons, normally be milled, using primarily wedge-shaped milling means.
    [0047] Figure 8 shows a cross-sectional view of the cylinder disk pin 31 shown in figure 7. The cross section has two side lines 350 substantially parallel, extending vertically with respect to the plane of the cylinder disks, with the said lateral lines, at each end, change to an oblique chamfer 360, where the respective angle and dimensions are adjusted to fit against the oblique section 15b of the key guide groove, and also to support the axial force transfer that will take place there, and which is presented in more detail in figure 7. As can be seen from figure 7, the pins of the cylinder discs narrow radially inwards, thus fitting the guide groove 15a, 15b of the key, whose sides go according to what is shown in figure 3, at an angle of 20 ° - 45 °, against each other.
    [0048] Figure 9 shows a cylindrical sector 37b of axis 3 of the key, in the view plane. In this, the locations L2, L4, L6 and L8 of the cylinder discs are marked, guided by the guide groove 15b of the cylindrical sector 37b. The figure shows the state in which the lock is opened by key 1 and in which the drum 5, 6 is rotated, with respect to the cylinder body 4, whose movement has been transferred to a lock installed in a door, which has then been opened. When the key 1 is pulled, from the key head 2, in the direction of the arrow 41, the door, which is open, in the state shown, can rotate on its hinges. This movement may require considerable force, if the door is heavy, and / or if it is subject to strong winds or resistance from the door structure. The figure shows the pins 31 of the cylinder discs, as a surface of obliquely hatched lines. Each of the pins 31 has contact, on both sides 40a and 40b, with the guide groove 15b. The contact on the side 40a comprises a relatively large surface, and transfers most of the force 41 transferred from the key to the lock, and subsequently to the door connected to the lock. The contact pattern is the same for each pin 31, which ensures that the transfer of force from the switch to pins 31 is evenly distributed to all pins.
    [0049] The cylinder lock with a slotted key, according to the invention, is particularly suitable for use in door locks, since the key is usually pulled to open the door. The transfer of axial force between the key and the lock, according to the invention, and the return of the locking drum are so well balanced and evenly distributed that, even by pulling the key, it is possible to make even heavy doors turn on their hinges, using only the axial traction transferred from the key, without the risk of damaging the cylinder lock. Only the contact between the pins and the key guide grooves already transfer traction from the key to the door. If the traction is not evenly distributed from the key to all pins of the cylinder lock, the load of individual pins may become so great that the pins and / or the key slot may be damaged. In locks of this type, problems often occur due to inaccuracies in the milling of the guide grooves, wear and load that is too large, both for the guide grooves and for the parts of the cylinder discs that operate together with them. The problems are also caused by the transfer of force between the cylinder discs and the deformation of the key, in connection with the load.
    [0050] A key, according to the invention, and a cylinder lock provide uniform force distribution, both when the key is turned and when the key is pulled to turn the door. The cylinder key and lock are thus exceptionally suitable for installation in lock bodies or in installation locations where there is no intention to use a separate item. In these facilities, the door is opened by pulling on the key. In order to allow uniform force distribution, the wrench has torque transfer surfaces (39) in the direction of its axis. The torque transfer surfaces clearly rest in at least three different directions, as seen from the central axis of the key, when the key is turned to open or reach the lock. The locations of the torque surfaces can be seen from the side cut 10 of figure 3 and from the location of the grooves, on the opposite side of the wrench. Between these grooves there is a straight cut, which also acts as a torque transfer surface. If this cut did not exist, the edges of the said grooves would form sharp corners, which could rub against the user's pocket and other keys, for example. In this case, the grooves would be more likely to pick up dirt. The cut also facilitates the placement of the key in the key hole present in the cylinder lock. The cut on the opposite side of the groove and between the cylindrical sectors also allows the variation of the key axis shapes, that is, the profiling. The profiles can also be made on the internal surface of the groove, but, in terms of production, this way is technically more challenging.
    [0051] The key also has a central hole / perforation, which promotes precise maneuverability of the key inside the cylinder lock. The precise positioning of the key in the center of the inner cylinder is important, in an attempt to prevent the circumferential surfaces of the cylinder discs from touching the circumference of the inner cylinder as the key is inserted and removed from the cylinder. The circular groove 36 in the center of the key axis shown in figure 3, whose opening 10 is narrower than the diameter of the keyway, guides the key well against the shapes corresponding to the profile plate 18, in the rotating center of the cylinder discs, which is important for the proper functioning of this type of cylinder structure. As the wrench has guide grooves on the opposite external surfaces, which are against the pins of the cylinder discs, the axial traction directed to the wrench is distributed between these two guide grooves. The production of the transverse shape of the key axis and profile plate 18 and spacer plates 23 of the cylinder is easier, with respect to known solutions, thanks to the clearer and relatively larger shapes. The large, relatively open circular groove shape 36 in the center of the key axis can be arranged so that it is always facing downwards as it is inserted into the lock, which allows the groove to remain free of dust and dirt. The open surface area of the keyhole can be made as small as possible, which will reduce the amount of dirt and dust entering the keyhole, in addition to reducing the possibility of vandalism and making it harder to break into the keyhole.
    [0052] The cylinder lock has spacer plates 13, the central opening of which has a corresponding projection, located centrally, with a lateral neck for the other structure of the spacer plate. As shown above, due to the clear structures, these projections guide the key, in an accessible way, to the keyhole and to the key channel formed by the spacer plates and cylinder discs. In addition, the cylindrical outer surface of the key is advantageous for guiding the key through the keyhole. The spacer plates also have small projections and, between these, a uniform line on the opposite side, which acts as the neck of the central projection. As these shapes are relatively low, they facilitate the insertion of the key into the keyhole, but at the same time, they also function as guide elements of the key. The locking rods 19 of the cylinder lock precisely lock the disks of the cylinder 17 in the middle of the inner cylinder, by means of the corresponding recesses 29 of the cylinder disks.
    [0053] Figures 10A-10D show different possibilities for installing the cylinder disk. When the cylinder disk has empty spaces 25 on opposite sides, for a cylinder bar 20, the turning of the disk, upside down (rotating from the position of figure 10A to the position of figure 10B) provides a second combination value. The cylinder disk can also be rotated laterally (turning the position of figure 10A to the position of figure 10C), where the cylinder disk will be guided by the other guide groove of the key. Still in this position, the disc can be rotated backwards (rotating from the position of figure 10C to the position of figure 10D). At the same time, using the same cylinder disk, many different combination values can be created (a given angle value, from different possible angle values, used for locating the key guide groove, for this disk cylinder).
    [0054] It is easy to produce a key according to the invention, with great precision. Reliable targeting of the cylinder lock disks is achieved, with minimal wear, for both the key and the parts of the lock that are affected by, or come into contact with, the key. The key and cylinder discs are loaded primarily symmetrically when there are two guide slots in the key. In addition, each guide groove can be used to affect specially selected cylinder discs and, in the case of their guide grooves, preferably alternating cylinder discs, which gives greater freedom to define the lock combination. The basically cylindrical shape of the key makes the best possible use of the keyhole space. Using the cylindrical sectors of the key, suitable surfaces are achieved for milling the guide grooves, where these surfaces can simultaneously function as guide surfaces for the radial direction of the key, which occurs in the lock, and also as a radial support for the discs of the cylinder lock, as well as the spacer plates positioned between these cylinder discs.
    [0055] The invention is not limited to the configurations presented, and several modifications and variations are possible, without departing from the scope of the claims below.
    权利要求:
    Claims (11)
    [0001]
    1. Key, intended for use in said cylinder locks, in which the part (3) of the key (1) to be inserted in the lock is shaped to rotate rotatable cylinder discs by means of longitudinal movements performed in the lock, which occur in at least two guide grooves installed in the key, the key (1) having two guide grooves (15a, 15b), characterized by the fact that part (3) of the key to be inserted in the cylinder lock is, in its basic, cylindrical shape, comprising a cylindrical sector (37a, 37b) intended for each guide groove (15a, 15b), and that the key (1) further comprises a longitudinal central cavity (36) and also longitudinal transfer surfaces of torque (39) on both sides of the cylindrical sectors (37a, 37b) intended for the guide grooves (15a, 15b), and the part to be inserted further comprises a lateral cut (10), which extends to the central cavity ( 36) and also comprising edge surfaces (12) conformed such as torque transfer guide surfaces, which are intended, together with the key (1) for the cooperative direction of the cylinder lock.
    [0002]
    2. Wrench according to claim 1, characterized in that the torque transfer guide surfaces (39) existing in at least two diametrically opposite parts of the wrench (1) are primarily radially directed.
    [0003]
    Key according to either of claims 1 or 2, characterized in that the central cavity (36) comprises a sector (11) which is at least 200 degrees.
    [0004]
    4. Key according to any one of claims 1 to 3, characterized in that the part (3) to be inserted in the lock has two opposing cylindrical sectors (37a, 37b), which are shaped to radially guide the disks of the cylinder lock, where both cylindrical sectors extend at least more than 84 °, these sectors (37a, 37b) being primarily arranged diametrically, in relation to each other, each on its own side of the key ( 1).
    [0005]
    5. Key according to any one of claims 1 to 4, characterized in that the guide grooves (15a, 15b) comprise longitudinal parts (4l3a, 413b) and, between these, the parts (414) travel in one angle following a spiral curve, constant pitch.
    [0006]
    6. Key according to claim 5, characterized in that each of the longitudinal points corresponding to a location on a cylinder disk guided by the guide groove (15a, 15b) has a longitudinal part (413a) in the respective groove guide (15a, 15b), which, at the end point (417) closest to the end of the key cavity, immediately changes to one of said parts (414) that travel at an angle.
    [0007]
    7. Key according to claim 5 or 6, characterized in that the guide groove (15a, 15b) between two nearby combination locations has a cross-sectional part (413b), in the event that the desired circumferential position to the other combining location it cannot be reached by said spiral curve of constant pitch, which is followed by the parts (414) that travel at the angle of the guide groove.
    [0008]
    8. Key according to any one of claims 1 to 7, characterized in that the guide grooves (15a, 15b) have a transverse shape that extends towards the base (15) of the groove, outwards, considering that the sides (16a) of the grooves are at an angle of 20 ° -45 °, with respect to each other.
    [0009]
    9. Key according to any of claims 1 to 8, characterized in that the key comprises two grooves installed on opposite sides of the key axis, in relation to the lateral cut (10).
    [0010]
    10. Key, according to claim 9, characterized in that the key comprises a cut in relation to the basically cylindrical shape of the key, between two grooves.
    [0011]
    11. Key according to any one of claims 1 to 10, characterized by the fact that the central cavity is symmetrical and the lateral cut is narrower than the central cavity.
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    同族专利:
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    PL2815045T3|2017-12-29|
    RS55479B1|2017-04-28|
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    PH12016500463B1|2016-06-06|
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    MD4545B1|2017-12-31|
    EP2902569B1|2016-09-28|
    EA030281B1|2018-07-31|
    PH12014501356B1|2014-09-22|
    MD20140078A2|2014-11-30|
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    SG11201404846TA|2014-10-30|
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    BR112014016570A2|2017-06-13|
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    CL2017002302A1|2018-04-20|
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    法律状态:
    2018-12-04| B06F| Objections, documents and/or translations needed after an examination request according [chapter 6.6 patent gazette]|
    2020-01-14| B06U| Preliminary requirement: requests with searches performed by other patent offices: procedure suspended [chapter 6.21 patent gazette]|
    2020-12-01| B09A| Decision: intention to grant [chapter 9.1 patent gazette]|
    2021-01-12| B16A| Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]|Free format text: PRAZO DE VALIDADE: 20 (VINTE) ANOS CONTADOS A PARTIR DE 14/02/2013, OBSERVADAS AS CONDICOES LEGAIS. |
    优先权:
    申请号 | 申请日 | 专利标题
    FI20120050|2012-02-16|
    FI20120051|2012-02-16|
    FI20120053|2012-02-16|
    FI20120050A|FI125356B|2012-02-16|2012-02-16|Key or key blank|
    FI20120051A|FI124300B|2012-02-16|2012-02-16|A method for reducing the required number of baffle plates in a cylinder lock and a lock arrangement|
    FI20120053A|FI124303B|2012-02-16|2012-02-16|Cylinder lock, key and combination of cylinder lock and key|
    PCT/FI2013/050174|WO2013121114A1|2012-02-16|2013-02-14|Key and disc tumbler cylinder lock|
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