EP4365390A1 - Serrure d'armoire - Google Patents

Serrure d'armoire Download PDF

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Publication number
EP4365390A1
EP4365390A1 EP22205064.3A EP22205064A EP4365390A1 EP 4365390 A1 EP4365390 A1 EP 4365390A1 EP 22205064 A EP22205064 A EP 22205064A EP 4365390 A1 EP4365390 A1 EP 4365390A1
Authority
EP
European Patent Office
Prior art keywords
shaft
lever
slider
blocking member
blocking
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP22205064.3A
Other languages
German (de)
English (en)
Inventor
Andreas Lauer
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Uhlmann und Zacher GmbH
Original Assignee
Uhlmann und Zacher GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Uhlmann und Zacher GmbH filed Critical Uhlmann und Zacher GmbH
Priority to EP22205064.3A priority Critical patent/EP4365390A1/fr
Priority to PCT/EP2023/078689 priority patent/WO2024094418A1/fr
Publication of EP4365390A1 publication Critical patent/EP4365390A1/fr
Pending legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/06—Controlling mechanically-operated bolts by electro-magnetically-operated detents
    • E05B47/0657—Controlling mechanically-operated bolts by electro-magnetically-operated detents by locking the handle, spindle, follower or the like
    • E05B47/0665—Controlling mechanically-operated bolts by electro-magnetically-operated detents by locking the handle, spindle, follower or the like radially
    • E05B47/0673—Controlling mechanically-operated bolts by electro-magnetically-operated detents by locking the handle, spindle, follower or the like radially with a rectilinearly moveable blocking element
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/04—Spring arrangements in locks
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B47/00—Operating or controlling locks or other fastening devices by electric or magnetic means
    • E05B47/0001—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof
    • E05B47/0012—Operating or controlling locks or other fastening devices by electric or magnetic means with electric actuators; Constructional features thereof with rotary electromotors

Definitions

  • the invention relates to a lock for cabinets, mail boxes, lockers, drawers or the like.
  • the lock comprises a housing, at least one blocking member, a shaft and at least one rotary bearing, wherein the rotary bearing rotatably supports the shaft relative the housing and defines a rotational axis of the shaft.
  • Drawers, cabinets, mail boxes, lockers or the like usually can be considered to come under the subordinate term of a case with a door or a cover plate that prevents access to a volume being enclosed by the case unless the door or cover plate, respectively is opened.
  • cabinet locks block or unblock rotation of a handle to retract a latch and/or a bolt (jointly herein 'locking member').
  • a user can rotate or elsewise operate (e.g. push) the handle and thereby retract or advance the bolt or latch (i.e. the locking member).
  • the cabinet lock is 'closed' the movement of the handle is blocked, the bolt cannot be retracted and in some case as well not be advanced.
  • the orientation of the handle in space is an indicator if the cabinet latch or the bolt is advanced or not.
  • cabinet locks are different from modern electronic door locks in that locking or unlocking a door by advancing or retracting a locking member is controlled by operating a clutch being in between of the handle and the deadlock. If the clutch is closed, the dead bolt is coupled to the handle and hence it can be advanced or retracted. If the clutch is open, the handle is decoupled from the dead bolt, i.e. the door lock cannot be operated by moving the handle.
  • US 9,273,492 B2 discloses a cam lock for cases like cabinets, drawers and the like.
  • the cam lock has a housing supporting a rotatable shaft.
  • the shaft has a cam at a first end and a knob at the opposite second end.
  • the cam essentially serves as a dead bolt that may be pivoted to engage into a recess of the cabinet to thereby prevent the cover plate from being opened.
  • a notch extends from the peripheral surface of the shaft inwardly.
  • a movable pin may be advanced from the housing into the notch to block a rotation of the shaft and subsequently retracted to release said blockage and thereby shift the lock from the locked into the unlocked state.
  • the pin is driven by a solenoid or miniature motor.
  • the problem to be solved by the invention is to provide a robust and versatile locking mechanism for a cabinet lock being more difficult to manipulate.
  • the invention provides a lock for cabinets, mail boxes, lockers, drawers or the like that allows to block rotation of a shaft relative to a housing of the lock.
  • a first portion of the shaft may be connected and/or coupled to a handle in a torque proof manner.
  • the other portion may be connected and/or coupled to a cam, a bolt, a latch or the like in case the shaft is rotated. Blocking a rotation of the shaft relative to the housing thus allows to ensure that the cam (bolt, latch, etc., herein "locking member” is used as a pars pro toto) remains in its present state, which may be “extended” (the cabinet door cannot be opened) or as well “retracted” (the cabinet door can be opened or closed).
  • the lock comprises a housing.
  • the housing encloses at least most of the other parts of the lock, but this is not required, as the housing may as well be mounted at the inner side of the case to be locked.
  • the housing may thus be or comprise a mounting base or a support, which may be attached to a case, e.g. to a cabinet door or a front plate of the case or to a wall of the case.
  • the lock further comprises at least a shaft being rotatably supported relative to the housing by a rotary bearing. In other words, the shaft is rotatable relative to the housing and hence has a rotational axis.
  • the rotational axis coincides with the longitudinal axis of the shaft, however, this is not required.
  • the angle ⁇ s between the two axes is smaller or equal to at least one of 45°, 30°, 15°, 10°, 5°, 1°, 0°, i.e. ⁇ s ⁇ ⁇ max , wherein ⁇ max ⁇ ⁇ 45°, 30°, 15°, 10°, 1°, 0° ⁇ and wherein smaller angles ⁇ max are preferred.
  • there may be a distance between the two axes it is preferred if the distance is smaller or equal than maximum of the diameter of the shaft.
  • the lock further preferably comprises at least one blocking member.
  • the blocking member can be moved between two positions, namely an extended and retracted position. In the extended position of the blocking member, a rotation of the shaft relative to the housing is blocked and in the retracted position the shaft can be rotated relative to the housing.
  • the shaft may further have an at least essentially axially extending channel.
  • the channel is aligned with the rotational and/or the longitudinal shaft axis.
  • At least essentially axially extending shall be understood to express that a channel axis coincides with the shaft axis within an error margin of ⁇ ⁇ e and that
  • the channel is delimited by a channel surface.
  • the channel surface is an inner surface of the shaft.
  • the shaft may be a hollow shaft or at least have a hollow section.
  • At least one through hole extends between a peripheral surface of the shaft and the channel surface.
  • the surface delimiting the through hole thus connects the peripheral surface and the channel surface.
  • the through hole may accommodate the blocking member as will be explained below in more detail. In case the lock has multiple blocking members each blocking member may be accommodated in a separate through hole.
  • the lock preferably comprises at least one pair of azimuthal abutments with a recess in between.
  • These azimuthal abutments may be attached directly or indirectly to the housing and may even be integrally formed by the housing.
  • the at least one pair of azimuthal abutments provides at least one recess in between of each of the two azimuthal abutments forming the respective pair of azimuthal abutments.
  • the blocking member may be movably supported in the through hole and may be movable between an extended position and a retracted position. In the extended position, a radially outward portion of the blocking member may extend radially outward out of the through hole and into the recess between the two azimuthal abutments of the pair of azimuthal abutments, while another portion of the blocking member is supported by the surface delimiting the through hole azimuthally.
  • the blocking member if the blocking member is in its extended position, the blocking member interlocks with the shaft and the pair of azimuthal abutments and hence blocks a rotation of the shaft relative to the housing.
  • the lock may comprise not only one pair of azimuthal abutments, but a higher number (e.g. 2, 3, 4, 5, 6, ... ) of pairs of abutments, enabling to lock the shaft in multiple orientations. But it is noted that, a single recess formed by a single pair of azimuthal abutments is sufficient.
  • the blocking member In its retracted position, the blocking member does not interfere with at least one of the azimuthal abutments of the pair, while a radially inward portion of the blocking member extends into the channel.
  • the blocking member when moving the blocking member from the extended position to the retracted position it is shifted away from the azimuthal abutments, e.g. towards the longitudinal axis. The interlocking is hence released and the shaft can be rotated relative to the housing.
  • the lock may further comprise a movable slider.
  • the movable slider can be movably accommodated in the channel, for example, the slider may be axially movable in the channel.
  • the slider can be movable between a blocking position and an unblocking position. In the blocking position, the slider blocks a movement of the blocking member from the extended position into the retracted position. In the blocking position, a portion of the slider may simply occupy and hence block the space of the channel being required to shift the blocking member into the retracted position. However, when shifting the slider into the unblocking position, the slider clears and hence provides a space and/or a void dimensioned to receive at least the radially inward facing portion of the blocking member in the retracted position.
  • the blocking member can hence be moved into the retracted position if the slider is in the unblocking position and a rotation of the shaft is made possible. In this sense, the position of the blocking member can be controlled by the movable slider. If the lock is blocked, the slider is in its blocking position and a torque being provided to the shaft cannot push the blocking member into the retracted position, not even if the azimuthal abutment blocking the rotation of the blocking member and hence of the shaft has an oblique surface configured to push the blocking member towards the retracted position, because the blocking member simply abuts the slider and is thus prevented, i.e. blocked, from moving into the retracted position.
  • blocking position may hence herein be replaced by “blocking position and / or orientation” and similarly “unblocking position” may hence be replaced by “unblocking position and / or orientation”, herein. Only for linguistic simplicity, herein, “blocking position” and “unblocking position” shall be understood as “blocking position and / or orientation” and “unblocking position and / or orientation” , respectively.
  • the azimuthal abutments and/or the slider may have an oblique surface configured to push the blocking member into the retracted and/or extended position, respectively, if the shaft is rotated and/or if the slider is shifted in the blocking position.
  • the blocking member may be preloaded towards the extended position or towards the retracted position.
  • Such preload may be provided by an elastic member, like e.g. a spring.
  • the preloading force may be provided by a magnet.
  • the movement of the slider may be driven by a motor and hence a lock controller may control shifting the slider from the blocking position to the unblocking position and back in the blocking position by powering or elsewise controlling the motor.
  • the slider is coupled to a motor by a transmission.
  • the transmission comprises a safety coupling (a safety clutch) and/or an elastic coupling.
  • the safety coupling and the elastic coupling both allow to operate the motor without monitoring if a movement of the slider is blocked or jammed.
  • the elastic coupling stores energy and releases it once the jamming is released.
  • the load to the transmission and/or the motor is limited and defects are avoided as the transmission may slip if the force and/or torque to be transmitted by the transmission exceeds a threshold.
  • the lock comprises at least a first lever element (as well “lever element” or “lever”, for short).
  • the first lever element is preferably pivotably supported relative to the housing, e.g.by a hinge.
  • the first lever element may be a part of the transmission, i.e. the slider and the motor may be coupled (i.a.) via the lever element.
  • the pivot axis of the lever element is preferably least essentially perpendicular (i.e. within the same error margins being introduced above) to the longitudinal axis and/or the rotational axis.
  • the lever may as well be referred to as pivotably supported element and the two terms may be replaced by the respective other.
  • the lever is preferably coupled to the slider, i.e. a movement of the lever causes a corresponding movement of the slider.
  • the lever has a first end orientation and a second end orientation. If the lever is in its first end orientation, the slider is in its unblocking position. If the lever is in its second end orientation, the slider is in its blocking position. In this sense, the orientations of the lever are associated to positions of the slider and vice versa. Pivoting the lever from a one of the two end positions into the respective other end position hence causes a movement of the slider toward its respective other position.
  • the lever may have an opening and the shaft may extend through the opening. Further, the shaft may have an at least essentially axially extending slot and a pin extending through the slot over the peripheral surface of the shaft.
  • the pin preferably extends through the longitudinal shaft axis. If the pin is coupled to the slider, shifting the pin at least essentially axially with respect to the shaft axis and/or the rotational axis in the axially extending slot results in a movement of the slider in the channel. In other words, a movement of the pin parallel to the rotational axis may shift the slider in the respective direction.
  • the pin is preferably connected by at least one thrust bearing to the lever, hence a pivotal movement of the lever translates in an axial shift of the pin, wherein "axial shift" references to the shaft axis and/or the rotational axis.
  • the optional thrust bearing(s) allows for a rotation of the pin relative to the lever and a pivotal movement of the lever translates into movement of the pin relative to the rotational axis.
  • the lever may for example engage into a motor driven worm gear, i.e. it may engage into a thread of a screw (the worm gear) or another kind of gear wheel.
  • driving the worm gear with a motor pivots the lever and thus shifts the slider in the corresponding direction.
  • the lever is connected via a spring with a motor.
  • a spring allows to decouple operation of the motor from pivoting the lever on the time scale.
  • the motor may load the spring and as soon as the jamming is released the blocking member can be retracted or extended, respectively, by the energy previously stored in the spring.
  • the spring element may be and/or provide an elastic coupling.
  • the spring element may be a part of the transmission and may connect the motor and the (optional) worm gear and/or it may be integrated in the optional lever and/or it may be between the lever and the optional pin and/or between the pin and the optional slider to name only some possibilities.
  • the spring element has the function of a mechanical energy storage means and the terms may be used interchangeably in this context.
  • the spring may simply allow to load a follower against the worm gear. In case the lever is blocked, the follower may simply be pushed radially with respect to the worm gear until it is no longer in engagement with the thread and 'fall' back into a neighbored thread.
  • the lever is biased towards its first end orientation, if the lever is in the second end orientation and/or the lever is biased towards its second end orientation, if the lever is in the first end orientation.
  • This biasing ensures that the transmission connecting the lever to a motor may freewheel if the lever reaches one of the end orientations but reengages reliably if the direction of the motor is inverted.
  • Biasing can be obtained by elastic elements being located at the corresponding end orientations.
  • a hinge supporting the lever may have end stops and pivoting the lever further than these ends stops allow, may elastically deform the lever until it reaches the corresponding end orientation.
  • Other solutions like magnetic preloading may be used as well.
  • the azimuthal abutments are connected to and/or by at least one ring segment.
  • the ring segment may surround a segment of the peripheral surface.
  • the ring segment further contributes to operational safety as it prevents the blocking member to enter the extended position if it is not aligned with the recess. Rotation of the shaft can thus be blocked only in predefined orientations of the shaft.
  • the ring surface is a plain bearing surface radially supporting the shaft. This allows a very compact and at the same time sturdy lock.
  • the ring surface faced radially inwards.
  • the azimuthal extension of the ring segment is greater than the azimuthal extension of the through hole. This measure ensures that in any orientation of the ring segment the shaft cannot be pivoted or pushed radially out of its intended position because the ring segment cannot extend into the through whole.
  • the lock comprises at least two pairs of azimuthal abutments and hence a corresponding number of recesses, this allows to lock the shaft in multiple orientations:
  • the shaft may be locked in a first orientation in which the corresponding cabined (or more generally case) is closed and as well in a second orientation, in which the case is open.
  • the lock comprises at least two blocking members and/or at least two pairs of azimuthal abutments.
  • the lock can withstand an increased torque in its locked state.
  • the shaft can be locked in at least two orientations. For example, if the lock has four pairs of abutments and thus four recesses a shaft having two blocking members can be locked in at least four different orientations, if the recesses and the blocking members are evenly distributed azimuthally.
  • the number of recesses may be greater than the number of blocking members. This allows to increase the number of orientations in which the shaft can be locked while keeping costs for blocking members, through holes etc. low.
  • the at least one blocking member or at least one of the blocking members is preferably elastically biased towards its extended position.
  • This biasing provides a tactile feedback to a user of the lock as the user turns the shaft, each time a/the biased blocking member(s) engages into a recess as a continuing the rotation provides an increase of torque to thereby push the blocking member(s) back into the retracted position.
  • Such biasing may be provided by a spring, magnetically or pneumatically.
  • a biasing spring biases the at least one blocking member towards the extended position.
  • the biasing spring may comprise at least two free legs that are connected by a middle leg and in this sense may be a U-shaped spring. If the blocking member is in the extended position, the void that can be occupied by the slider may be in between of the at least two free legs. In a preferred example, each free leg of the U-shaped spring biased a blocking member towards its extended position.
  • the housing may have an indicator window and an arm may be coupled, e.g., attached or elsewise connected to the first lever. Hence the arm pivots together with the first lever.
  • the arm may have at least a first indicator section and this first indicator section is preferably in front of the window if the first lever is in a position in which the slider is in the blocking position or in the unblocking position and not of the slider is the unblocking position or in the blocking position, respectively.
  • the arm may further have a second indicator section and this second indicator section may be in front of the window if the if the first lever is in a position in which the slider is in the unblocking position or in the blocking position and not of the slider is the blocking position or in the unblocking position, respectively.
  • the arm hence provides as reliable and inexpensive indicator showing a user of the lock if rotation the shaft is blocked against a rotation or not.
  • FIG. 1 a lock for a cabinet or another kind of case is show.
  • the lock has a housing 10 and a handle 11, being attached to a shaft 20.
  • the handle 11 In the open state, the handle 11 can be rotated relative to the housing 10 while in closed state the rotation 11 is blocked.
  • the shaft is not necessarily unitary, but it may be.
  • the shaft comprises a first shaft piece and a second shaft piece that are connected by a permanent rotary coupling, but this is only an example allowing to simplify assembly of the lock.
  • the shaft may support a dead bolt, a cam (i.e. a locking member) or the like.
  • the shaft is only configured to receive a locking member that rotates with the shaft and thereby allows to block or release a movement of the lock relative to an abutment of a cabinet's housing. Only to declutter the figures, the locking member itself is not depicted, as such locking members are well known and multiply depicted in many varieties in the prior art.
  • FIG. 2 shows the lock of Fig. 1 , with the housing cover and the handle 11 removed.
  • FIG. 3 is a sectional view long along the plane A-A as indicated in FIG. 2 and
  • FIG. 4 is a sectional view of the same cabinet lock along the same section plane.
  • FIG. 4 differs from FIG. 3 only in that is shows the cabinet lock in the blocked stated.
  • the handle 11 has been removed from the shaft 20.
  • the shaft 20 is rotatably supported relative to the housing 10 by rotary bearings 12.
  • the rotary bearings 12 are plain bearings being formed by corresponding plain bearing surfaces of the shaft 20 and the housing, but other types of rotary bearings 12 (e.g. ball bearings, roller bearings, ...) may be used as well.
  • the longitudinal axis 2 of the shaft is the rotational axis 2, but this is not required.
  • the shaft 20 may comprise an at least essentially axially extending channel 22.
  • the channel 22 may be delimited by a channel surface 24.
  • the channel surface 24 provides a plain bearing surface radially supporting a slider 40 in the channel 22.
  • the slider 40 may move axially in the channel.
  • the slider 40 has an unblocking position (see FIG. 3 ) and a blocking position (see FIG. 4 ).
  • the shaft 20 further has at least one (shown are two, the number is only a preferred example) through hole 26 (see FIG. 3 to FIG. 5 ).
  • the through hole 26 extends between the shaft's peripheral surface 28 and the channel surface 24.
  • the through hole 26 preferably accommodates at least one blocking member 30 and supports it azimuthally, wherein azimuthally references to the shaft's axis 2 (see FIG. 3 to FIG. 5 ). This means that if the shaft 20 is rotated, the at least one blocking member 30 is rotated with the shaft 20.
  • FIG. 3 and FIG. 4 two blocking members 30 are depicted in their respective extended positions, but other numbers of blocking members 30 are possible as well.
  • the at least one blocking member 30 may be biased by a spring 35 (see as well FIG. 5 ) towards its extended position. In the extended position, a radially outward portion of the blocking member 30 extends radially over the peripheral surface 28 (see FIG. 5 ) of the shaft 20 into a recess 15 of the housing 10.
  • the housing has a couple of portions and as can be seen in FIG. 2 to FIG. 5 , recess 15 is provided by a housing portion 10.1.
  • the recess 15 may be delimited in the azimuthal direction by a pair of two azimuthal abutment surfaces 14, 16 in between of which the recess 15 is formed.
  • These azimuthal abutment surfaces 14, 16 are as well referred to as azimuthal abutments 14, 16.
  • a ring segment which is preferably delimited in the azimuthal direction by these azimuthal abutments 14, 16.
  • the azimuthal abutments 14, 16 of two different recess 15 have been indicated by corresponding reference numerals, but as can be seen, the inner surface of the corresponding portion of the housing portion 10.1 has a number of essentially identical recesses 15, azimuthal abutments 14, 16 and ring segments 17. These are only rotated by an angle relative to the respective next recess 15, azimuthal abutment(s) 14, 16 and ring segment 17.
  • the blocking members 30 may be pushed against the radial force provided by the spring 35 into their respective retracted positions by the oblique azimuthal abutments 14, 16 (see FIG. 5 ). In these retracted positions at least a portion of the blocking members 30 extends into a void 23 (see FIG. 3 ) in the shaft 20, while in turn the radially outward portion of the blocking members 30 no longer interferes with the azimuthal abutments 14, 16 and may pass the ring segments 17.
  • the shaft 20 can be rotated relative to the housing 10. This rotation can be prevented by shifting the slider 40 into its blocking position being depicted in FIG. 4 , because in this blocking position of the slider 40 a portion of the slider extends into the void(s) 23 and thereby prevents the at least one blocking member(s) 30 from being shifted into the (respective) retracted position.
  • the slider 40 may be driven by a motor 99 via an optional transmission.
  • the transmission comprises a lever element 50, briefly referred to as lever 50.
  • the lever 50 is pivotably supported to pivot relative to the housing 10 around a pivot axis 52 and the pivot axis 52 is preferably at least essentially perpendicular to the rotational axis 2 of the shaft and/or the direction of movement of the slider 40 when being shifted from the blocking to the unblocking position.
  • the lever 50 may have an opening.
  • the opening may extend around the shaft 20 and may be attached via an elastic element 57 (see FIG. 5 ) to a worm gear 98 (see FIG. 3 and 4 ) or another kind of gear wheel, wherein the worm gear 98 may be driven by the motor 99.
  • the motor 99 drives the gear 98 the lever 50 may be pivoted between the positions as shown in FIG. 3 and in FIG. 4 .
  • the slider 40 is shifted accordingly as will be explained below and the lock may be shifted between the blocked and the unblocked state.
  • a pin 60 may be movably attached to the lever 50 and extend across the opening of the lever 50 through axially extending slots 29 of the shaft 20. Thus, if the shaft 20 is rotated, the pin rotates with the shaft 20. As shown in FIG. 3 and
  • the pin 60 may be rotatably supported in a ring shaped groove 56 of the lever 50.
  • the ring shaped grove 56 is preferably covered by a groove cover 58(see FIG. 5 ) which may be attached to the lever 50 (see FIG. 3 and 4 ).
  • the lever 50 may hence allow for a rotation of the pin 60 relative to the longitudinal axis 2, but transmits forces in the axial direction between the pin 60 and the lever 50, with respect to the axial direction of the shaft 20.
  • the lever 50 and the pin 60 may thus form an integrated thrust bearing (e.g. together with groove cover 58) and/or may be connected via a thrust bearing.
  • the pin 60 is attached to the slider 40.
  • the pin may extend through a through hole of the slider 40.
  • the motor 99 drives the worm gear 98
  • the lever 50 is pivoted and with the lever 50 the pin 60 is pivoted.
  • the pivotal movement of the pin 60 has an axial component and hence the slider 40 is moved axially towards the blocking position (see FIG. 3 ) or if rotation of the motor is inverted back to the extended position (see FIG. 2 ).
  • the connection between the slider 40 and the pin 60 is provided by the pin 60 protruding through a through hole in the slider 40, which though hole is herein referred to as an aperture 41, but only to verbally distinguish the aperture from the through holes 26 accommodating the blocking members 30. It is not required that the pin 60 extends through the slider, all that is required is that the pin 60 or another structure attaches the lever 50 and the slider 40 in a thrust transmissive manner (i.e. by a thrust bearing). In this sense the term pin 60 can be replaced by "structure 60 attaching or coupling the lever 50 to the slider 40".
  • the lever 50 may be coupled to the worm gear 98 by at least one elastic element 57.
  • a portion of the elastic element 57 may engage into the worm gear 98 (or any other kind of gear wheel) and another portion may be attached directly or indirectly to a free end of the lever 50.
  • the elastic element 57 is preferably at least essentially not elastic parallel to the axis of the worm gear and/or the arc being defined by the lever 50 if pivoted, but may be elastic at least essentially perpendicular to the arc.
  • the elastic element may be elastic at least essentially radially with respect to the pivot axis of the lever, thereby allowing, in case the lever is blocked but the worm gear is driven, the portion of the elastic element 57 to climb over the crest of the gear defining the thread into the next valley of the gear wheel or worm gear as the case may be, thereby preventing the drive mechanism from being damaged.
  • the combination of the elastic element 57 and the worm gear hence provides a very cost effective safety coupling in the transmission connecting the motor99 and the slider 40.
  • the motor 99 and the slider 40 may be coupled by a transmission comprising a safety clutch.
  • the motor 99 hence drives the movement of the lever 50 from an unblocking orientation ( FIG. 3 ) to a blocking orientation ( FIG. 4 ) of the lever 50, wherein pivoting the lever 50 towards the unblocking orientation causes a movement of the slider 40 towards its unblocking position and pivoting the lever 50 towards the lever's blocking orientation causes the slider 40 to move towards its blocking position.
  • the elastic member 57 may reach the end of the thread of the worm gear 98 and may disengage with the thread of the worm gear 98.
  • the lever or at least the elastic member 57 is spring loaded towards the respective other end orientation in case it reaches one end.
  • the lever 50 (and/or at least the elastic member 57) is biased towards the second end orientation in case the lever 50 is in its first end orientation and/or the lever 50 (and/or at least the elastic member 57) is biased towards the first end orientation in case the lever 50 is in its second end orientation.
  • Said biasing may be obtained by separate elastic elements, but as well by the elasticity of the lever 50 and/or the elastic member.
  • the lock may comprise an indicator arm 59 ("arm 59" for short).
  • the arm 59 may have an indicator (the portion to which the line connecting the arm with the reference numeral 50 ends).
  • the indicator defines the free end of the arm.
  • the indicator arm 59 is pivotably supported relative to the housing and may be coupled (e.g. by any kind of transmission) with the lever 50.
  • the arm 59 moves if the lever 50 moves and the location of the indicator portion of the arm is indicative for the present orientation of the lever 50.
  • FIG. 3 indicating lock unblocked
  • FIG. 4 indicating lock blocked
  • the indicator moves accordingly and providing a transparent portion in the housing, i.e.
  • the arm may be biased towards its respective other position and by the coupling between the arm 59 and thereby, as a result of coupling the lever 50 and the arm 59, the lever 50 may be biased in its end orientations as suggested above.
  • lever is a pivotably supported element and the two terms may be interchanged herein.
  • the lock may not only used to control access to a cabinet, a drawer or the like but as well to control access to doors.
  • List of reference numerals Numeral Item Indicated in: 1 Lock FIG. 1 10 housing FIG. 1 FIG. 2 10.1 housing portion FIG. 5 11 handle FIG. 1 12 rotary bearing FIG. 3 FIG. 4 14 azimuthal abutment FIG. 5 15 recess FIG. 3 FIG. 4 FIG. 5 16 azimuthal abutment FIG. 5 17 ring segment FIG. 5 20 shaft FIG. 1 FIG. 2 FIG. 3 FIG. 4 FIG. 5 22 channel FIG. 3 FIG. 4 23 s pace/void/free volume FIG. 3 24 channel surface FIG. 3 FIG. 4 26 through hole FIG. 3 FIG. 4 FIG. 5 28 peripheral surface FIG. 3 FIG.
  • FIG. 5 29 slot FIG. 3 FIG. 4 FIG. 5 30 locking member FIG. 3 FIG. 4 35 spring biasing the blocking members FIG. 3 FIG. 4 40 slider FIG. 3 FIG. 4 41 aperture (through hole in slider) FIG. 5 50 lever FIG. 3 FIG. 4 52 pivot axis FIG. 3 FIG. 4 56 thrust bearing / ring shaped groove FIG. 3 FIG. 4 57 Spring /elastic member FIG. 3 FIG. 5 58 groove cover FIG. 3 FIG. 5 59 arm FIG. 2 FIG. 3 FIG. 4 60 pin FIG.3 FIG. 4 98 worm gear /gear wheel FIG. 3 FIG. 4 99 motor FIG . 3 FIG. 4

Landscapes

  • Lock And Its Accessories (AREA)
  • Pivots And Pivotal Connections (AREA)
EP22205064.3A 2022-11-02 2022-11-02 Serrure d'armoire Pending EP4365390A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
EP22205064.3A EP4365390A1 (fr) 2022-11-02 2022-11-02 Serrure d'armoire
PCT/EP2023/078689 WO2024094418A1 (fr) 2022-11-02 2023-10-16 Serrure d'armoire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP22205064.3A EP4365390A1 (fr) 2022-11-02 2022-11-02 Serrure d'armoire

Publications (1)

Publication Number Publication Date
EP4365390A1 true EP4365390A1 (fr) 2024-05-08

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ID=84330148

Family Applications (1)

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EP22205064.3A Pending EP4365390A1 (fr) 2022-11-02 2022-11-02 Serrure d'armoire

Country Status (2)

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EP (1) EP4365390A1 (fr)
WO (1) WO2024094418A1 (fr)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2009078800A1 (fr) * 2007-12-18 2009-06-25 Assa Oem Ab Dispositif de poignée
US20130015671A1 (en) * 2010-03-23 2013-01-17 Johan Calleberg Selectively disengageable and couplable handle with motor
US9273492B2 (en) 2006-05-31 2016-03-01 Security People, Inc. Electronic cam lock for cabinet doors, drawers and other applications
WO2019030003A1 (fr) * 2017-08-08 2019-02-14 Evva Sicherheitstechnologie Gmbh Système d'accouplement pour une serrure électromécanique
US20190234107A1 (en) * 2016-11-18 2019-08-01 Rustem Latipovich ZLAVDINOV System for locking interior door latches

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US9273492B2 (en) 2006-05-31 2016-03-01 Security People, Inc. Electronic cam lock for cabinet doors, drawers and other applications
WO2009078800A1 (fr) * 2007-12-18 2009-06-25 Assa Oem Ab Dispositif de poignée
US20130015671A1 (en) * 2010-03-23 2013-01-17 Johan Calleberg Selectively disengageable and couplable handle with motor
US20190234107A1 (en) * 2016-11-18 2019-08-01 Rustem Latipovich ZLAVDINOV System for locking interior door latches
WO2019030003A1 (fr) * 2017-08-08 2019-02-14 Evva Sicherheitstechnologie Gmbh Système d'accouplement pour une serrure électromécanique

Also Published As

Publication number Publication date
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