• 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:
    Abstract Spring bolt arrangement (1, 1') comprising an axially displaceable spring bolt (io, io') with a bolt latch (20) and a blocking device. The spring bolt is fixed to the bolt latch, rotatably about a rotational axis which is substantially perpendicular to the direction of axial displacement of the spring bolt and bolt latch. The blocking device is switchable between a blocking state, in which the position of the spring bolt relative to the bolt latch is fixed and a releasing state, in which rotation of the spring bolt is allowed. The blocking device comprises an actuator (30) which is arranged linearly displaceable between a first axial position and a second axial position, inside of and relative to the bolt latch (20). At least one blocking member (4oa, 4ob), is linearly displaceable relative to the actuator, the bolt latch and the spring bolt, in a direction which is essentially perpendicular to the displacement direction of the actuator. A first blocking recess (41a, 41b) arranged in the spring bolt (1o), and a second blocking recess (42a, 42b) arranged in the bolt latch (20). The actuator (30) is arranged to, in the first axial position, maintain the blocking member (4oa, 4013) in simultaneous engagement with the first blocking recess (41a, 41b) and the second blocking recess (42a, 42b), thereby maintaining the blocking device in the blocking state and to, in the second axial position, allow the blocking member to be brought out of engagement from at least one of the first and second blocking recesses, thereby setting the blocking device in the releasing state.
    公开号:SE1450893A1
    申请号:SE1450893
    申请日:2014-07-15
    公开日:2016-01-16
    发明作者:Ulf Hultgren
    申请人:Assa Oem Ab；
    IPC主号:
    专利说明:

    1O SPRING BOLT ARRANGEMENT Technical field The invention relates to a spring bolt arrangement comprising an axiallydisplaceable spring bolt with a bolt latch. The invention also relates to a lockcomprising such an arrangement. The spring bolt arrangement and the lock may particularly be used at emergency or evacuation doors.
    Background Emergency and evacuation doors are often equipped with so-calledemergency or panic evacuation fittings or accessories. Such fittings aredisposed on the inner side of the door to allow quick and easy operation ofthe lock from the inner side of the door, from which evacuation through thedoor shall be allowed. The emergency doors are opened outwards and thefittings are configured and coupled to the bolts of the lock to allow the door to be opened with a simple thrust on a handle or a panic opening bar.
    In panic situations, for example, where crowding occurs by the emergencydoor, it can happen that the crowd is pressed against the door before this hasbeen opened. The spring bolt of the lock is thus pressed against the strikingplate so that a friction force arises between them. A greater force is henceneeded to be applied to the f1tting in order to withdraw the spring bolt fromits engagement with the striking plate. In order to prevent the need forexcessively large forces to operate the fitting, there are safety regulationswhich specify how large a maximum force on the operating members of thef1tting may be required to open the door when a certain pressure force isapplied to the inner side of the door leaf. According to European safetyregulations, for example, the necessary force upon a panic f1tting to operatethe lock must not exceed 220 N if a pressure force of 1000 N is applied centrally to the inner side of the door leaf.
    Prior art In order to reduce the forces which need to be applied to the fitting in panic situations, it is previously known to configure the spring bolt such that it is 1O rotatable relative to the bolt latch, about a rotation axis which isperpendicular to the direction of axial displacement of the spring bolt and ofthe bolt latch. In order to prevent the door from possibly opening from theoutside, the rotational motion of the spring bolt can selectively be blockedand allowed by means of a blocking device operated with the emergency orpanic evacuation fitting. When the door is pressed outwards and the fitting isactivated, the blocking device of the spring bolt is released, so that the springbolt can be rotated in the direction away from the striking plate, whereuponthe friction between them decreases. The force which is required to releasethe spring bolt from engagement with the striking plate is thereby reduced.Such rotatable spring bolts are sometimes referred to as collapsible springbolts.
    DE 102 07 630 A1 describes a lock having a latch bolt which is axiallydisplaceable together with a latch carrier and is rotatable relative to the latchcarrier. The lock also comprises an electrically operable blocking device, withwhich the rotational motion of the latch relative to the latch carrier can beblocked or allowed. The construction shown in DE 102 07 630 A1 comprises anumber of lever arms, which makes it relatively complicated and bulky. Thedevice which is described therein additionally entails that the whole or arelatively large part of the force with which the striking plate is pressedagainst the spring bolt is transmitted to that part of the blocking device atwhich the release of the rotational motion of the latch shall be achieved.There is hence a risk that a relatively large force, transmitted from thestriking plate, will cause a high friction between the parts of the blocking device, whereby the force required to release the blocking device is high.
    EP 1 291 478 A1 describes another lock having a spring bolt which is axiallydisplaceable together with a bolt latch and is rotatable in relation to thelatter. A blocking device for selectively releasing and blocking the rotationalmotion of the spring bolt comprises a contact roller which is disposed on arocker arm and which, in contact with two different surfaces on a linearlydisplaceable part of the blocking device, can selectively allow and prevent linear displacement of this part so as thereby to allow or prevent rotation of 1O the spring bolt. This device, too, is relatively bulky and complicated. Thoughthe use of a rotating roller helps to reduce the friction in the blocking device,it simultaneously increases the spatial requirement, as well as the complexity of the device and the material and production costs.
    WO 2009/ 096892 discloses a lock comprising a spring bolt with a bolt latchand a blocking device which is switchable between a release position in whichthe spring bolt may rotate relative to the bolt latch and a blocking position, inwhich the spring bolt is fixed relative to the bolt latch. The blocking devicecomprises a first and a second linearly displaceable element and at least twopairs of sliding surfaces arranged on the spring bolt, the first element and thesecond element and interacting in pairs. The displaceable elements areconnected one after the other in series with the spring bolt via the pairs of sliding surfaces.
    Summary of the invention It is an object of the present invention to provide an enhanced collapsible spring bolt.
    It is another object to provide such a spring bolt arrangement which is simplein construction and which comprises only a comparatively low number of movable parts.A further object is to provide such an arrangement which is reliable in use.
    A still further object is to provide such a spring bolt arrangement which requires only a limited space when mounted in a lock casing or the like.
    Yet another object is to provide such a spring bolt arrangement which easy to IIIOUIIÉ.
    These and other object are achieved by a spring bolt arrangement of the typespecified in the preamble of claim 1 and exhibiting the special technicalfeatures set out in the characterizing portion of the claim. The inventive spring bolt arrangement comprises an axially displaceable spring bolt with a 1O bolt latch and a blocking device. The spring bolt is fixed to the bolt latch,rotatably about a rotational axis which is substantially perpendicular to thedirection of axial displacement of the spring bolt and bolt latch. The blockingdevice is switchable between a blocking state, in which the position of thespring bolt relative to the bolt latch is fixed and a releasing state, in whichrotation of the spring bolt is allowed. The blocking device comprises anactuator which is arranged linearly displaceable between a first axial positionand a second axial position, inside of and relative to the bolt latch. At leastone blocking member is linearly displaceable relative to the actuator, the boltlatch and the spring bolt, in a direction which is essentially perpendicular tothe displacement direction of the actuator. A first blocking recess is arrangedin the spring bolt and a second blocking recess is arranged in the bolt latch.The actuator is arranged to, in the first axial position, maintain the blockingmember in simultaneous engagement with the first blocking recess and thesecond blocking recess, thereby maintaining the blocking device in theblocking state and to, in the second axial position, allow the blocking memberto be brought out of engagement from at least one of the first and second blocking recesses, thereby setting the blocking device in the releasing state.
    The invention thus provides a spring bolt arrangement which requires only alow number of constituent parts and especially a low number of movableparts. Hereby, a very reliable arrangement is achieved. The low number ofparts also reduces the manufacturing costs and facilitates assembly of the arrangement and the mounting of it to a lock or the like.
    The actuator may be arranged to drive the blocking member intosimultaneous engagement with the first and second blocking recess, during displacement from the second to the first axial position.
    The actuator may exhibit a release recess which is arranged to receive the blocking member when the actuator has assumed its second axial position.
    The first blocking recess may have a cross sectional geometry which corresponds to the geometry of the blocking member, such that a recess wall 1O of the first blocking recess, in contact with the blocking member, urges theblocking member out of engagement with the first blocking recess, when theactuator has assumed its second axial position and a rotational force is applied to the spring bolt.
    The release recess may have a cross sectional geometry which corresponds tothe geometry of the blocking member, such that a release recess wall of therelease recess, in contact with the blocking member, urges the blockingmember into engagement with the first blocking recess, when the actuator is moved from the second to the first axial position.The blocking member may exhibit a curved periphery.The blocking member may be a ball.
    The first blocking recess may be an elongated grove having a semi circular cross section.
    The spring bolt arrangement may preferably comprise two blockingmembers, a pair of first blocking recesses and a pair of second blocking YGCCSSCS.
    The at least one blocking member may be displaceable in a direction which is parallel with the rotational axis of the spring bolt.
    A spring arrangement may be arranged to bias the actuator towards the first axial position.
    The invention also concerns a lock comprising a lock mechanism and such a spring bolt arrangement as well as a door comprising such a lock.
    Generally, all terms used in the claims are to be interpreted according to theirordinary meaning in the technical field, unless explicitly defined otherwiseherein. All references to "a/ an /the element, apparatus, component, means,step, etc." are to be interpreted openly as referring to at least one instance of the element, apparatus, component, means, step, etc., unless explicitly stated 1O otherwise. The steps of any method disclosed herein do not have to be performed in the exact order disclosed, unless explicitly stated.
    Brief description of the drawings The invention is now described, by way of example, with reference to the accompanying drawings, in which: Fig. 1 is an exploded perspective view of a spring bolt arrangement according to an embodiment of the invention.
    Fig. 2 is a perspective view illustrating the arrangement shown in f1g. 1 when assembled and when the blocking device is in the blocking state.
    Fig. 3 is a perspective view corresponding to f1g. 2 illustrating the arrangement when the blocking device is in the releasing state.
    Figs. 4 and 5 are longitudinal sections in perspective view corresponding to f1gs. 2 and 3 respectively.
    Figs. 6 and 7 are cross sections in perspective view corresponding to figs. 4 and 5 respectively.
    Figs. 8-10 are perspective views illustrating a lock provided with two springlock arrangements according to the invention and showing the lock arrangements in different states and positions.
    Detailed description of embodiments The invention will now be described more fully hereinafter with reference tothe drawings illustrating exemplifying embodiments of the invention. Thedescription should not be construed as limited to the embodiments set forthherein; rather, these embodiments are provided by way of example so thatthis disclosure will be thorough and complete, and will fully convey the scopeof the invention to those skilled in the art. Like numbers refer to like elements throughout the description. 1O Figs. 1-7 show a spring bolt arrangement 1 according to a first embodiment ofthe invention. The spring bolt arrangement 1 comprises a spring bolt 10 and abolt latch 20.
    The spring bolt 10 is rotationally connected to the bolt latch 20 by means of ashaft pivot 11 which in the example shown has the form of a radiallycompressible pin sleeve exhibiting a longitudinal slot. The shaft pivot mayhowever be formed in many different ways. The spring bolt may be rotatedbetween a locking position (shown in figs. 2, 4 and 6) and a collapsedposition (shown in figs. 3, 5, and 7). As common for spring bolts, it exhibits astop side 12 which is intended to be in engagement with a striker plate (notshown) for keeping a door (not shown) closed. In the locking rotationalposition of the spring bolt 10, the stop surface is arranged generally inparallel with the longitudinal direction of the bolt latch. An angled side 13 isarranged opposite to the stop side 12. When shutting the door, the angledside 13 makes contact with the striker plate and forces the spring bolt 10 andthe bolt latch 20 to be retracted into the lock case 50 (see figs. 8-10) . It ispossible to adapt the spring bolt arrangement 1 for left and right hand doorsby rotating the spring bolt 10 about the longitudinal axis of the bolt latch 20to a corresponding rotational orientation. The spring bolt 10 furthercomprises a bolt neck which is formed by two flanges 14a, 14b protruding inthe direction towards the bolt latch 20. Both flanges are provided with athrough hole 15a, 15b for receiving the shaft pivot 11.
    The bolt latch 20 has a generally U-shaped cross section, formed by a top wall21 and two mutually opposed side walls 22a, 22b. The top 21 and side 22a,22b walls thus define a downwardly (as seen in fig. 1) open channel 25. At aforward end of the bolt latch 20, proximal to the spring bolt 10, each side wall22a, 22b is provided with a through hole 23a, 23b which receives the shaftpivot 11. At the rear end, distal to the spring bolt 10, the bolt latch 20 exhibitsa radially protruding manoeuvring collar 24, The manoeuvring collar exhibitsa slot 26, which is aligned with the channel 25. A guiding peg 27 is arrangedat the upper edge of the manoeuvring collar 24 and is intended to be received in a guiding slot (not shown) of the top or bottom wall of a lock case 50. 1O The spring bolt arrangement 1 further comprises a blocking device, which isarranged to selectively allow and prevent rotation of the spring bolt 10 aboutits rotational axis defined by the shaft pivot 11. The blocking device comprisesan actuator 30 which is arranged linearly displaceable in the channel 25,along the longitudinal axis of the bolt latch 20. The actuator has a generalyrectangular cross section. A manoeuvring peg 31 is arranged at the rear endof the actuator 30. The manoeuvring peg 31 protrudes downwards, such thatit may be received in the slot 26 and aligned with the manoeuvring flange 24when the actuator assumes a rearwardly displaced position. The front end ofthe actuator is formed as a fork with two forwardly protruding tines 32a, 32barranged one above the other. The tines 32a, 32b both have curved tips whichtapper in the forward direction. The shaft pivot 11 is received between the twotines 32a, 32b, such that the actuator 30 is guided by the shaft pivot 11,during axial displacement. A rectangular through opening 33 is arrangedsomewhat behind the middle of the actuator 30 and extends in thelongitudinal direction of the actuator 30. A helical compression spring 34 isarranged in the through opening 33. The forward end of the spring 34 bearsagainst a front wall 33a of the through opening 33. The rear end of the springbears against a cylindrical support sleeve 35 which is threaded onto a fixationpin 36, which in turn is fixed in fixation holes 37a, 37b arranged in the sidewalls 22a, 22b of the bolt latch 20. By this means the actuator 30 ispretensioned or biased forwardly towards a first axial position. When a forcegreater than the spring force is applied to the actuator in the rearwarddirection, the actuator 30 is displaced rearwardly to a second axial position, under compression of the spring 34.
    The actuator 30 further exhibits two release recesses 38a, 38b arranged inopposing lateral side surfaces of the actuator, just behind the tines 32a, 32b.The release recesses 38a, 38b tappers inwardly. An area arranged on eachlateral side of the actuator 30, just behind a respective release recess 38a, 38bforms a blocking surface 39a, 39b of the blocking device. The release recesses38a, 38b are arranged to receive a respective blocking member 40a, 40b. In the shown embodiments the blocking members are formed as balls. 1O The spring bolt 10 exhibits two first blocking recesses 41a, 41b, which arearranged on the inside of a respective flange 14a, 14b, just behind the shaftpivot receiving through holes 15a, 15b. In the shown example the firstblocking recesses are formed as longitudinal grooves, extending in parallelwith the longitudinal axis of the bolt latch 20 when the spring bolt 10 assumes its locking rotational position. The first blocking recesses 41a, 41b extend rearwardly all the way to the rear end of the respective flange 14a, 14b.
    The cross section of the blocking recesses 41a, 41b is semi circular with aradius that corresponds to the radius of the blocking members 40a, 40b.When the blocking members are constituted by balls, the first blockingrecesses may also be formed semi spherical. The first blocking recesses arepositioned such that they are aligned with the blocking surfaces when thespring bolt 10 is in the locking rotational position and the actuator 20 is in the first axial position.
    Two second blocking recesses 42a, 42b are arranged, one in each side wall22a, 22b. The second blocking recesses 42a, 42b are formed as cylindricalthrough holes having a radius which is essentially the same as the radius ofthe blocking members 40a, 40b. The second blocking recesses are positionedsuch that they are aligned with the blocking surfaces 39a, 39b when theactuator is in the first axial position and with the release recesses when the actuator is in the second axial position.
    The actuator 30 is further provided with a resetting pin 45 which projectsupwardly from the upper side of the actuator 30 and extends through an elongated opening 46 arranged through the top wall 21 of the bolt latch 20.
    With reference to figs 2-7 the functioning of the spring bolt arrangement willnow be explained. Figs 2, 4, and 6 illustrate the arrangement 1 in a firstoperational mode. In these figures the spring bolt 10 is in its lockingrotational position such that the stop surface may engage a striker plate (notshown) to thereby keep the door closed. The actuator 30 is biased forwardly,by means of the spring 34, to the first axial position. In this axial position the blocking surfaces 39a, 39b of the actuator 30 are aligned with the first 41a, 1O 41b and second 42a, 42b blocking recesses. By this means, the blockingmembers 40a, 40b are maintained in an outwardly displaced position. In thisposition, the blocking members 40a, 40b each simultaneously engages both afirst 41a, 41b and a second 42a, 42b blocking recess. Thereby, the spring bolt10 is prevented from rotating from the locking to the collapsed rotationalposition. If a force is applied to the spring bolt 10 in the rotational directiontoward the collapsed position, the curved recess walls of the first blockingrecesses 41a, 41b will urge the blocking members 40a, 40b inwardly, towardthe actuator 30. However, since the blocking members 40a, 40b aresupported by the flat blocking surfaces 39a, 39b, which are arrangedperpendicular to the radial displacement direction of the blocking members,no force in the axial direction of the actuator 30 will be transmitted to theactuator. Thereby the blocking members 40a, 40b are securely maintained insimultaneous engagement with both the spring bolt 10 and the bolt latch 20, such that the spring bolt 10 is prevented from collapsing.
    When evacuation through the door provided with the spring boltarrangement is to be allowed, a coupling arm or the like arranged in the lockcase and connected e.g. to an evacuation handle or panic bar acts on themanoeuvring peg 31 of the actuator 30. The manoeuvring peg 31 is pushedbackwards, against the spring force exerted by the spring 34, such that theactuator 30 is displaced axially to its second axial position. Hereby, therelease recesses 38a, 38b are brought into alignment with the first 41a, 41band second 42a, 42b blocking recesses. The blocking members 40a, 40b arethus allowed to be displaced inwardly such that they are received in therelease recesses 38a, 38b. As soon as any force is applied to the spring bolt inthe rotational direction towards collapsed position this force will betransmitted by means of the curved recess walls of the first blocking recesses41a, 41b, to the blocking members 40a, 40b. The blocking members 40a, 40bare thus pushed into the release recesses 38a, 38b such that they are broughtout of engagement with the first blocking recesses 41a, 41b. Thereby, thespring bolt 10 is allowed to rotate, and the force applied by the striker plate will cause the spring bolt to assume its collapsed position. The spring bolt 1O 11 arrangement has then assumed the operational mode and position illustratedin figs. 3, 5 and 7. At the collapsed position, the stop surface 12 is arranged atan angle to the striker plate such that the force applied by the striker plate istransferred to an axial force on the spring bolt 10. This axial force thuscontributes to displace the spring bolt 10 together with the bolt latch 20 andthe actuator 30 rearwardly, into the lock case, such that the spring bolt 10 isbrought completely out of engagement with the striker plate and the door may be opened.
    It should be noted that the geometry of the first blocking recesses and theblocking members provides for that the force is transmitted from the springbolt via the blocking member to the actuator under a certain gear ratio. It isthus possible to choose how great force that is needed to be applied to thespring bold for collapsing the bolt by designing the relative angles betweenthe walls of the first blocking recesses and the corresponding surface of the blocking members.
    For bringing the spring bolt arrangement back to the first operational modeillustrated in figs. 2, 4 and 6, a latch bolt spring (not shown) acts on theresetting pin 45 and pushes the resetting pin 45 in the forward direction. Bythis means the actuator 30 is urged forwardly. However, since the firstblocking recesses 41a, 41b have been brought out of alignment with thesecond blocking recesses 42a, 42b, the blocking members 40a, 40b can notmove radially outwards. Thereby, the blocking members 40a, 40b, in contactwith the release recesses 38a, 38b and the second blocking recesses 42a, 42bwill drive the bolt latch 20 and the spring bolt 10 to be displaced forwardlytogether with the actuator. During this initial forward displacement, an outersurface of the spring bolt 10 makes contact with the edge of a spring boltopening 51 (fig. 8-10) arranged in the forend 51 of a lock case 50 and forcesthe spring bolt 10 to be rotated back to is locking rotational position.Thereby, the blocking recesses 41a, 41b are again aligned with the secondblocking recesses 42a, 42b and the blocking members are allowed to bedisplaced radially outwardly into the first blocking recesses 41a, 41b. Theactuator may then be pushed forwardly relative to the bolt latch 20, such that 1O 12 it again assumes its first axial position. During this displacement of theactuator relative to the bolt latch 20, the tapering walls of the release recesses38a, 38b, drives the contact members radially outwards into simultaneousengagement with the first 41a, 41b and second, 42a, 42b blocking recesses. Atthis position the resetting pin 45 also makes contact with the front edge of theelongated through opening 46, such that continued forward movement of theresetting pin 45 brings about simultaneous forward axial displacement of theactuator 30, the bolt latch 20 and the spring bolt. The spring lockarrangement then reassumes its position and state as shown in figs. 2, 4 and6.
    Fig. 8-10 illustrates an example of how the spring bolt arrangement 1illustrated in figs. 1-7 may be mounted in a lock 50. The lock 50 alsocomprises a second spring bolt arrangement 1” which functions essentialy inthe same way as the spring bolt arrangement 1, but which is shorter than the spring bolt arrangement 1 illustrated in figs 1-7.
    The lock 50 comprises a lock case 52 and a forend 53. The spring boltarrangements 1, 1” are arranged linearly displaceable in the lock case 52 suchthat the spring bolts 10, 10” may be displace outwardly and inwardly througha respective spring bolt opening 51, 51” arranged in the forend 53 of the lock CaS6.
    The lock 50 further comprises a lock mechanism arranged in the lock case.The lock mechanism transfers movements from followers (not shown) to thespring bolt arrangements 1, 1” for manoeuvring as described above. Thefollowers may be connected to evacuation handles, panic bars (not shown)and other fittings for allowing fast and reliable emergency exit through a door provided with the lock 50.
    Fig. 8 shows the lock 50 when the spring bolts 10, 10” and the bolt latcheshave been displaced axially outwardly, the spring bolts are in the lockingrotational positions and the actuators are in the first axial positions. Fig. 9 shows the lock when the spring bolts 10, 10” and the bolt latches have been 1O 13 displaced outwardly, the actuators have assumed the second axial positionsand the spring bolts have rotated to the collapsed position. Fig. 10 shows thelock in the same state as in fig 9, but were the spring bolts 10, 10” have been axially displaced inwardly to their respective retracted positions.
    The invention has mainly been described above with reference to a fewembodiments. However, as is readily appreciated by a person skilled in theart, other embodiments than the ones disclosed above are equally possiblewithin the scope of the invention, as defined by the appended patent claims.For example, the blocking members need not be formed as balls, but canassume many other shapes such as cylindrical. However, the geometry of theblocking member should correspond to the geometry of the first and secondblocking recesses, such that the blocking member may be brought intosimultaneous engagement with both the first and the second blockingrecesses. Preferably the geometry of the blocking members, should alsocorrespond to the first blocking recesses such that a rotational force andmotion applied to the spring bolt may be transferred to a linear force andmotion of the blocking member. In the shown embodiment the arrangementis provided with two blocking members. However it is also possible to providethe arrangement with only one or a larger number of blocking members and acorresponding number of first and second blocking recesses. The inventivespring lock arrangement may also be applies at other locks than locks foremergency or evacuation doors, e.g. in other locks and doors where it is desirable to reduce the forces needed to open the door.
    权利要求:
    Claims (14)
    [1] 1. the spring bolt is fixed to the bolt latch, rotatably about a rotational axis 5 which is substantially perpendicular to the direction of axial displacement of the spring bolt and bolt latch, 2. the blocking device is switchable between a blocking state, in which the position of the spring bolt relative to the bolt latch is fixed and a releasing state, in which rotation of the spring bolt is allowed, characterized in that the blocking device comprises; 3. an actuator (30) which is arranged linearly displaceable between a first axial position and a second axial position, inside of and relative to the bolt latch (2o), 4. at least one blocking member (4oa, 4013), which is linearly displaceable 15 relative to the actuator, the bolt latch and the spring bolt, in a direction which is essentially perpendicular to the displacement direction of the actuator, 5. a first blocking recess (41a, 41b) arranged in the spring bolt (1o), and 6. a second blocking recess (42a, 42b) arranged in the bolt latch (20) and in that - the actuator (30) is arranged to, in the first axial position, maintain the blocking member (4oa, 4013) in simultaneous engagement with the first blocking recess (41a, 41b) and the second blocking recess (42a, 42b), thereby maintaining the blocking device in the blocking state and to, in the second axial position, allow the blocking member to be brought out of engagement from at least one of the first and second blocking recesses, thereby setting the blocking device in the releasing state.
    [2] 2. Spring bolt arrangement according to claim 1, wherein the actuator (30) is arranged to drive the blocking member (4oa, 4013) into simultaneous engagement with the first (41a, 41b) and second (42a, 42b) blocking recess, 30 during displacement from the second to the first axial position. 1
    [3] 3. Spring bolt arrangement according to claim 1 or 2, wherein the actuator (30) exhibits a release recess (38a, 38b) which is arranged to receive the blocking member (4oa, 4ob) when the actuator has assumed its second axial position.
    [4] 4. Spring bolt arrangement according to any one of claims 1-3, wherein the first blocking recess (41a, 41b) has a cross sectional geometry which corresponds to the geometry of the blocking member (4oa, 4013), such that a recess wall of the first blocking recess, in contact with the blocking member, urges the blocking member out of engagement with the second blocking recess, when the actuator (30) has assumed its second axial position and a rotational force is applied to the spring bolt (1o).
    [5] 5. Spring bolt arrangement according claim 3 or 4, wherein the release recess (38a, 38b) has a cross sectional geometry which corresponds to the geometry of the blocking member (40a, 4013), such that a release recess wall of the release recess, in contact with the blocking member, urges the blocking member into engagement with the first blocking recess (41a, 41b), when the actuator is moved from the second to the first axial position.
    [6] 6. Spring bolt arrangement according to any one of claims 1-5, wherein the blocking member (4oa, 4ob) exhibits a curved periphery.
    [7] 7. Spring bolt arrangement according to claim 6, wherein the blocking member (4oa, 4013) is a ball.
    [8] 8. Spring bolt arrangement according to claim 7, wherein the first blocking recess (41a, 41b) is an elongated grove having a semi circular cross section.
    [9] 9. Spring bolt arrangement according to any one of claims 1-8, comprising 25 two blocking members (4oa, 40b) , a pair of first blocking recesses (41a, 41b) and a pair of second blocking recesses (42a, 42b).
    [10] 10.
    [11] 11. Spring bolt arrangement according to any one of claims 1-9, wherein the at least one blocking member (4oa, 4ob) is displaceable in a direction which is parallel with the rotational axis of the spring bolt (io). 16 ii. Spring bolt arrangement according to any one of claims 1-10, comprising a spring arrangement (34) which is arranged to bias the actuator (30) towards the first axial position.
    [12] 12. A lock comprising a lock case, a lock mechanism and a spring bolt 5 arrangement according to any of claims 1-11.
    [13] 13. A door comprising a lock according to claim 12.
    [14] 14. A door according to claim 13, wherein the door is an emergency or evacuation door and further comprises emergency or evacuation fittings and/or accessories. I. •6!d e8E eZE 2/ 3/ CY)
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    FR2829518B1|2001-09-11|2004-11-05|Jpm Sa|UNIVERSAL MOUNT LOCK, SAID "HANDLESS"|
    DE10207630C5|2002-02-22|2012-03-08|Mehmet Sancak|Lock with remote control|
    SE531998C2|2008-02-01|2009-09-22|Assa Ab|Lock with plunger|
    ES2400557B1|2011-04-15|2013-08-01|Talleres De Escoriaza, S.A.|Convertible lock|
    NL1039315C2|2012-01-23|2013-07-25|Assa Abloy Nederland B V|Lock assembly.|DK3252252T3|2016-06-03|2021-05-17|Assa Abloy Opening Solutions Sweden Ab|LOCK WITH LOCK AND FALL|
    US11220839B2|2017-05-15|2022-01-11|Spectrum Brands, Inc.|Dead locking latch assembly|
    法律状态:
    优先权:
    申请号 | 申请日 | 专利标题
    SE1450893A|SE539717C2|2014-07-15|2014-07-15|Spring bolt arrangement with blocking device, actuator and blocking member|SE1450893A| SE539717C2|2014-07-15|2014-07-15|Spring bolt arrangement with blocking device, actuator and blocking member|
    EP15176319.0A| EP2975202A1|2014-07-15|2015-07-10|Spring bolt arrangement|
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