JP2006118270A - Push button type locking and unlocking device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To unlock a locked state for an operating member while instantaneously solving an engaged state with a push button in a lock piece constituting a locking mechanism only by operating a thumb turn member on the indoor side. <P>SOLUTION: A push-button type locking and unlocking device is mounted on the outer-wall surface side of the door and brings a lock sliding plate in a pedestal to a movable state through a plurality of the push buttons 6. In the device, a click piece 15 and a lock piece 16 capable of being engaged with at least the push buttons are incorporated into the pedestal. In the device, a driving plate 17 for the click-piece, a locked plate 19 engaged with a stopper 18 in the pedestal and an unlocking plate 21 unlocking the engagement of the stopper 18 so that the locked plate can be rotated are incorporated into the pedestal respectively. When an operating means on the indoor side is operated, the click piece and the lock piece in an engaging relationship with the push buttons are moved in the direction of the unlocking of the engagement through each rotation of the unlocking plate and the driving plate. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a push button type locking / unlocking device attached to an outer wall surface of a door in relation to locking pieces such as a latch bolt and a dead bolt before locking the door.

  There exists patent document 1 as an example of this kind of push button type application | coating and unlocking apparatus. The subject of the invention described in Patent Document 1 is to enable the same push button to be pushed a plurality of times and to increase the number of combinations of unlock numbers. For this purpose, as a solution, a number of unlocking tumblers that have been set in advance can be pushed with a push button to allow the slider biased to the unlocking position to move to the unlocking position. A positioning mechanism is provided in the pedestal (holder case) of the push button type locking / unlocking device to set the temporary fixing position of the tumbler to a plurality of positions in the front and back direction of the pedestal, and the push button is pushed once. An intermediate mechanism is provided that advances the temporary fixing position of the tumbler corresponding to the push button to the back side of the pedestal one by one.

  However, the unlocking configuration of this type of locking / unlocking device is mainly focused on operating a plurality of push buttons from the outdoor side based on the password. Therefore, a plurality of rotating plates provided in the base with respect to the shaft portion of the indoor side operation member (including the plug-in type thumb turn bar) are disposed in association with the engagement slider of the lock mechanism in the base. When the thumb turn knob of the operation member is rotated, there is no technical document that moves the engagement slider of the lock mechanism in the direction of disengagement through the rotating plate. Aside from the existence of prior technical literature in this regard, this type of push-button application and solution device generally has a plurality of movable obstacles (dumblers) corresponding to the positions of a plurality of push buttons. ) And the urging means are arranged orthogonally to the slider, and there is a problem that the configuration of the locking / unlocking device is complicated.

  Of course, unlike the padlock described in Patent Document 2, a dumbler and urging means are not built in the housing, but only a plurality of push buttons are arranged in the housing, and predetermined push buttons are arranged from the front side based on the password. When pushed to the back side, the engagement relationship between the engagement protrusion of the engagement slider of the lock mechanism and the engagement portion of the push button is canceled, and as a result, the push type operating means at the bottom of the housing can be pushed. The matter to this effect is disclosed.

However, the technical matter disclosed in this padlock can also be moved in the release direction by operating the push button exposed or protruding on the outer wall surface of the pedestal, as in the case of Patent Document 1, after all. When the thumb turn on the indoor side is operated as in the present invention, the locked plate that is always locked to the stopper in the pedestal for locking the operation member becomes rotatable, and immediately the lock mechanism The engagement slider (member of the term “lock piece” in the present embodiment) that constitutes is not moved in the direction of disengagement.
Japanese Patent Publication No. 2003-138801 Japanese Utility Model Publication No. 60-15889

  An object of the present invention is to push a plurality of push buttons provided on the outer wall surface side of the door via a pedestal on the basis of a password, thereby to engage engagement plates (into the plurality of push buttons) inside the pedestal. Stopper and pedestal that prevents rotation of the operating member only by operating the thumb-turn member on the indoor side in the push-button type locking / unlocking device that makes the lock piece (locked) movable It is to cancel the locked state with the push button engaged with the inner member.

  Further, when the inner operation member is operated, a predetermined push button locked to the click piece can be automatically returned to the initial position (reset state). In addition to simplifying the structure of the push-button type locking and unlocking device (no built-in movable obstruction etc.), the drive for the click piece incorporated in the shaft and base of the operating member for moving the lock piece The engagement relationship between the plate, the locked plate locked to the stopper in the pedestal, and the release plate that releases the locking of the stopper so that the locked plate can rotate is rationally configured. It is to make the rotation or operation of each member good and to reduce the number of parts as much as possible. Furthermore, each member is rationally arranged or combined to effectively utilize the space in the pedestal. In addition, the inner operation member can be pulled out to further enhance the crime prevention effect.

  The push button type locking / unlocking device of the present invention is mounted on the outer wall surface of the door and can move the lock slide plate in the base via a plurality of push buttons that are pushed based on the password. In the push button type locking / unlocking device to be in a state, at least a push piece and a lock piece that can be engaged with and disengaged from the push button are incorporated in the pedestal, while the pedestal is used for the click piece in the axial direction of the operating means. When a drive plate, a locked plate locked to a stopper in the pedestal, and a release plate for releasing the locking of the stopper are incorporated so that the locked plate can rotate, and the operation means on the indoor side is operated The click piece and the lock piece that are engaged with the push button are moved in the direction of disengagement through the rotation of the release plate and the drive plate.

  In the above-described configuration, the stopper urging means 47 is incorporated in the base recess 24 so that the hook portion 18a of the stopper 18 always engages with the engagement protrusion 19a of the locked piece 19. It is characterized by being energized. The lock piece 16 pivotally supports one end of a stopper 18, and the lock piece and the stopper move together in the same direction in conjunction with the click piece 15 when the click piece 15 moves. When the inner operation member is operated, the predetermined push button locked to the click piece 15 is released from the click piece that slides by the driving force of the drive plate, and is supported by the spring support plate 31 in the base. The spring 30 is automatically returned to the initial position. Further, there is a slight gap between the engagement receiving surface of the engagement hole of the locked plate and the engagement surface of the engaging portion of the operating means so that the locked plate starts rotating after the initial start of the release plate. The gap is set. Other features are described in the dependent claims.

(1) By simply operating the thumb-turn member on the indoor side, it is possible to release the state in which the stopper is prevented from rotating with respect to the operation member, and to cancel the engagement state between the lock piece and the like in the pedestal and the push button.
(2) When the inner operation member is operated, a predetermined push button locked to the click piece can be automatically returned to the initial position (reset state).
(3) Since a movable obstacle or the like is not built in the pedestal, the configuration of the push button type locking / unlocking device can be simplified.
(4) In the dependent claim, the shaft portion of the operating member for moving the lock piece, the drive plate for the click piece incorporated in the pedestal, the locked plate locked to the stopper in the pedestal, and the locked plate Since each engagement relationship with the release plate for releasing the stopper is rationally configured so as to be able to rotate, the rotation or operation of each member is good. In addition, the number of parts can be reduced.
(5) The space in the recess in the pedestal can be effectively utilized, and there are effects such as excellent crime prevention effect.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 14 will be described.

(1) Environment for Implementing the Invention FIG. 1 is a schematic explanatory view seen from the free end side of the door 1 showing the environment for implementing the present invention. Reference numeral 1 denotes a door, 1a denotes an inner wall surface on the indoor side 2 of the door, and 1b denotes an outer wall surface on the outdoor side 3 of the door.

  By the way, the locks attached to the door as the first order are those in which dead bolts appear and disappear from the front of a lock case (not shown), those in which dead bolts appear and disappear from the side wall of the lock case on the thumb turn knob side, and the indoor side 2 There are various types, such as those in which the thumb turn shaft (drive core member) of the thumb turn knob located at the center of the thumb lock and the drive shaft of the cylinder lock located at the outdoor side 3 are located coaxially, and those not.

  In FIG. 1, the first rank locks are not particularly illustrated, but the present invention is not limited to the second rank locks or the third rank locks, and the first rank locks are optionally provided at the free end of the door 1. Attached to. In that sense, the push button type locking / unlocking device X of the present invention can also be referred to as an “auxiliary lock”. In addition, when attaching the base 5 of the locking / unlocking apparatus X to the outer wall surface 1b of the free end part of the door 1, the place where a finger reaches each push button 6 is naturally desirable.

  In FIG. 1, reference numeral 7 denotes an outer operation member (thum turn), while 8 is integrally connected to the outer operation member 7 via respective operation shafts (outer and inner thumb turn bars) 9 and 10. An inner operation member (thum turn), 11 is a locking piece (dead bolt) that protrudes and retracts from the auxiliary front plate 12 when the thumb turns 7 and 8 are respectively rotated, and 13 is an inner connection member that is connected to the pedestal 5 via the connecting means 14. It is a plate-shaped pedestal.

  In addition to the environment for carrying out the invention, the push button type locking / unlocking device X is provided with the dead bolt 11 as a locking piece as in the first rank lock, so that it is "lock". There is no change. Therefore, the door frame has a receiving bracket on which the dead bolt 11 is engaged and disengaged.

(2) Configuration of Main Part The push button type locking / unlocking device X of the present invention is “attached to the outer wall surface 1b side of the door 1 and is pushed based on the personal identification number” in relation to the prior art. It is premised on a “push button type locking / unlocking device” that allows the lock slide plate in the pedestal 5 to move through a plurality of push buttons 6. There are also new matters regarding the shape of the push button 6, the specific internal structure of the pedestal 5, the configuration of the back plate, the guide plate for the push button combined with the back plate, etc., but here we focus on the configuration of the main part of the present invention. To be described.

  The structure of the main part of the present invention is that a click piece 15 and a lock piece 16 that can be engaged with and disengaged from at least a plurality of push buttons 6 are incorporated in the pedestal 5, respectively, while the click piece 15 and the lock piece 16 are associated with the pedestal. 5, the operating shafts of the operating means 7, 8, the click piece drive plate 17 in the axial direction of 10, and the locked plate 19 that is locked to the stopper 18 that is directly or indirectly rotatable in the pedestal 5. When the release plate 21 for releasing the locking of the stopper 18 is incorporated so that the locked plate can rotate, and the knob 8a of the operation means 8 on the indoor side is operated, the release plate 19 and the drive plate 17 are operated. The click piece 15 and the lock piece 16 that are engaged with the predetermined push button 6 are moved in the direction of disengagement through the rotations of.

  Therefore, the main components of the present invention are the base 5, the plurality of push buttons 6, the operation member 8 connected to the operation shaft, the click piece 15, the lock piece 16, the click piece drive plate 17, the stopper 18, and the locked member. A plate 19 and a release plate 21; Additional requirements such as the recess 24 formed in the pedestal 5 in relation to these members, the biasing means 47 for the stopper 18, the dummy piece 23 for the push button that moves in association with the movement of the click piece, etc. are specific requirements Each is added as necessary. Hereinafter, main constituent members will be described.

(3) Pedestal 5
The base 5 which is an example of a decorative body is formed in a ship shape as shown in FIG. Therefore, the shape or the structure is remarkably different from the indoor plate-shaped decorative body (plate-shaped pedestal) 13 shown in FIG. The pedestal 5 is formed in a concave member made of metal or synthetic resin and opened on the back side (a member in which several communicating recesses exist), and the structural members necessary for the application / unlocking device X are All are mounted on or incorporated into the base 5.

  Thus, the pedestal 5 is formed in a ship shape having a recess 24 whose back side is continuous in the length direction, and a drive plate, a release plate, and a locked plate are operated in a space 24a that forms a recess on one end side. A plurality of spring members 25, 26, and 27 are incorporated in a space 24 b that is provided in the axial direction of the member and forms the continuous recess on the other end side, and further, the space 24 b and the space 24 a A plate-like click piece 15 and a lock piece 16 are incorporated in the large space 24c of the recess corresponding to the gap (see FIGS. 4 and 5).

  The pedestal 5 includes a support portion 28 integrally formed therein, or a push button support plate 28 fitted integrally, a push button front cover 29 that can be freely opened and closed, a push button return spring 30, and a spring support plate. 31, a plurality of cylindrical columns 32 having a stopper function for the rotating plates 17, 19, 21 and an attaching function for the lid plate. Explanation of other details is omitted.

(4) Push button 6 and click piece 15
When the front cover 29 is opened upward, for example, the front end of the push button 6 of this embodiment is exposed on the surface side of the base 5. A total of nine push buttons 6 are arranged in a matrix for setting the password. The function of the push button 6 has already been described in relation to the prior art. However, when a predetermined push button is pressed based on the code number, the push button 6 moves to the back side of the pedestal 5 and is connected to the locking plate in the pedestal 5. The engagement is released. In this embodiment, the member that is engaged with the push button 6 is the lock piece 16, so that when the predetermined push button is pressed based on a preset password, the push button 6 locks (locks) to the lock piece 16. State).

  By the way, as one of the characteristic features of the present invention, there is a “relationship between the click piece 15 and the push button 6”. 6 and 7 show the engagement / disengagement relationship. That is, the push button 6 includes a button-like tip portion 6a, a plate or shaft-like first engagement portion 6b for the lock piece 16 that is connected to the tip portion 6a in the horizontal direction, and the first engagement portion 6b. 2 and the second engaging portion 6c for the click piece 15 at the rear end portion provided continuously with the front end portion 6a. The front surface of the front end portion 6a is provided with an identification code such as a numeral as shown in FIG. In consideration of the engagement / disengagement position with the engagement hole 16a formed in the lock piece 16 in the engagement portion 6b, for example, a notch portion is appropriately formed.

  In FIG. 7, when the inner operation member 8 is operated, the predetermined push button 6 locked to the click piece 15 is released from the click piece 15 that slides by the driving force of the drive plate, The arrow indicates that the spring 30 is automatically returned to the initial position by the spring force of the push button return spring 30 supported by the spring support plate 31.

  That is, the click piece 15 is appropriately formed with three rows of guide openings 35 corresponding to the positions of the push buttons 6 in the length direction. Ten (10) locking claws 36 are provided at predetermined intervals.

  Therefore, in this embodiment, when a predetermined push button 6 is pressed based on the password, the push button 6 moves to the back side of the base 5 and the lock piece 16 is unlocked (locked state). Since the second engaging portion 6c is locked by the locking claw 36 of the click piece 15 at the place where it is pushed, it does not return to the initial position. In other words, the pushed push button 6 has its protruding second engaging portion 6c hooked to the locking claw 36 of the click piece 15, so that even if the push button return spring 30 is acting, it returns to its original position. And can't go back. Therefore, the unlocking (locking state) of the push button 6 with respect to the lock piece 16 can be maintained.

  Therefore, when the inner operation member 8 is operated from the indoor side 2, in this embodiment, the drive plate 17 for the click piece 15 that cooperates with the thumb turn bar is provided on the thumb turn bar 9 of the outer operation member 7 connected to the operation member 8. Since it is provided, the fingertip-shaped protrusion 17a of the drive plate 17 pushes up while rotating one end surface (the lower end surface in FIG. 5) of the click piece 15. As a result, the locking claw 36 of the click piece 15 that has been slid (e.g., raised) against the spring force of the spring 25 for the click piece 15 is separated from the second engaging portion 6c of each push button 6 that is set to be released, It is reset by the spring force of the push button return spring 30.

(5) Relationship between the Inner Operating Member 8 and the Drive Plate 17 The inner operating member 8 connected to the operating shaft (outer thumb turn bar) 9 of the outer operating member 7 will be described with reference to FIG. In the present embodiment, for convenience of explanation, the operation shafts 9 and 10 are described as being divided into an outer thumb turn bar 9 and an inner thumb turn bar 10. It is a thumb turn bar. Further, one thumb turn bar (9, 10) can be inserted and removed from the indoor side 2 in consideration of crime prevention. In other words, whether or not the multi-face crime prevention is taken into consideration, the operation plate 17, the locked plate 19, and the release plate 21 shown in FIG.

  The configuration of the drive plate 17 and the like will be described with reference to FIGS. As already described, 17 is a click piece drive plate, 19 is a locked plate locked to the stopper 18 in the pedestal, and 21 is a stopper 18 locked so that the locked plate 19 can rotate. It is a release plate that releases In the present embodiment, the stopper 18 is pivotally supported by a projecting portion 16b projecting from one end portion (lower end portion) of the lock piece 16 via a support shaft 20 having a stopper function.

  As shown in FIG. 8, the drive plate 17 has a curved surface, an inclined surface, a recessed surface, and the like at the outer periphery, and the insertion end (engagement portion) 9a of the operation shaft 9 is engaged at the center. An engagement hole that is slightly larger in the circumferential direction is formed oppositely on the outer side of the engagement hole. The drive plate 17 and the like are directly or indirectly associated with the click piece 15, the lock piece 16, and the stopper 18.

  Here, reference numerals are assigned to the respective parts such as the drive plate 17. Reference numerals 41, 42, and 43 denote “bamboo dragonfly type” engagement holes formed in the center of the drive plate 17 and the like. The engagement holes 41, 42, and 43 of the drive plate 17 and the like are not the same even though they are called bamboo dragonfly type engagement holes. For example, the engagement hole 41 of the drive plate 17 and the engagement hole 43 of the locked plate 19 are the same. A small gap (play) 44, 45 is set between each of the engagement receiving surfaces 41a, 43a that can be engaged with the insertion end (engagement portion) 9a of the operation shaft 9, and the same shape. It is. On the other hand, there is no gap (play) between the engagement hole 42 of the release plate 21 and the engagement portion 9a of the operation shaft 9. Therefore, although the shape of the engagement hole 42 of the release plate 21 is a bamboo dragonfly type, it differs from the engagement holes 41 and 43 such as the drive plate 17 in that there is a “gap (play)”.

  In the present embodiment, there is a new matter in the drive plate 17 and the like so that the drive plate 17 and the like are reasonably rotated by the operating force of the inner operation member 8. That is, as described in (4) above, 17a is a protrusion that protrudes radially outward from the outer peripheral wall of the drive plate 17 in a fingertip shape, and the protrusion 17a is one end of the click piece 15 (for example, the lower end surface). ) Is engaged so that it can be pushed up. Reference numeral 21 a denotes a stopper release engaging portion formed in an inclined shape on the outer peripheral wall of the release plate 21, and the release engaging portion 21 a is inclined to the hook portion 18 a formed in the tip end portion of the stopper 18. Line contact. Further, 19 a is an engagement protrusion formed in a small protrusion shape on the outer peripheral wall of the locked plate 19, and this engagement protrusion 19 a is always locked to the hook portion 18 a of the stopper 18.

(6) Click piece 17, lock piece 16, etc. In the pedestal 5, at least a click piece 15 and a lock piece 16 that can be engaged with and disengaged from the push button 6 are incorporated. In this embodiment, although not a limiting requirement of the present invention, a dummy piece 23 for a push button that moves (synchronized movement, follow-up, etc.) associated with the movement is disposed on the click piece 15.

  In particular, in the present invention, in order to effectively use the space in the pedestal 5, the members 15, 16, and 23 are rationally arranged or combined. That is, the pedestal 5 is formed with a recess 24 continuous in the length direction on the back side, and the drive plate 17, the release plate 21 and the locked plate 17 are provided in the recess 24 in the axial direction of the operation member 9. In addition, the click piece 15, the lock piece 16, and the dummy piece 23 are assembled together, and a plurality of spring members 25, 26 for urging the pieces 15, 16, 23 in predetermined directions, respectively. , 27 are collectively incorporated in the space 24b on the upper end side of the base 5.

  The configuration of the click piece 15, the lock piece 16, etc. will be described with reference to FIGS. 10 and 11. First, the thick plate-like click piece 15 will be described. As described above, 35 is a guide opening and 36 is a locking claw. With reference to FIG. 10, the upper end 15 a of the click piece 15 is formed in an arc shape along the curvature of the upper end of the base 5, and the spring-shaped members 25, 26, 27 are stored in the arc-shaped upper end 15 a. One or a plurality (not shown) of notches 37 are formed. In the notch 37, a plurality (three) of spring support bars 38 extending outward from the inner end face of the notch are provided.

  Thus, the long spring member 25 for the click piece 15 is provided on the spring support bar 38 located on the left side, and the two spring support bars 38 and 38 of the same length located on the right side are provided for the lock piece 16. A spring member 26 and a spring member 27 for the dummy piece 23 are respectively wound appropriately.

  Next, the plate-like lock piece 16 will be described. As described above, 16a is a plurality of engaging holes, and 16b is a protruding portion. Similarly, referring to FIG. 10, a spring support portion 16 c for the spring member 26 is appropriately formed on the right side of the upper end portion of the lock piece 16, and the above-described notch 37 of the spring support portion 16 c and the click piece 15 is formed. The spring member 26 is assembled between the inner end surface via the rightmost spring support bar 38.

  Therefore, when the click piece 15 moves upward, the spring member 26 urges the lock piece 16 upward via the spring support portion 16c. Therefore, in this embodiment, the spring member 26 is interlocked with the click piece 15 (including the follow-up). ) And the lock piece 16 can be moved in the same direction.

  On the other hand, on the right side of the lower end portion of the lock piece 16, a stopper support portion 16 e that receives the free end portion of the stopper 18 is formed to protrude. Furthermore, a vertical long hole 39 for controlling the movement of the lock piece 16 is appropriately formed at the lower end of the lock piece 16.

  Next, the plate-shaped dummy piece 23 will be described. The dummy piece 23 is also formed in substantially the same manner as the lock piece 16. That is, the dummy piece 23 also has a plurality of engagement holes 23a corresponding to the position of the push button, and the upper end portion is slightly shifted to a position closer to the center portion so as not to overlap the spring support portion 16c of the lock piece 16. Thus, a spring support portion 23c is formed to protrude. Compared with the lock piece 16, the difference is that the lower end portion of the dummy piece 23 is formed in an arc shape on the inside, and the vertical elongated hole 40 for controlling the movement of the dummy piece formed in the center portion of the lower end portion is slightly shorter. There is.

  Here, the spring 27 for the dummy piece 23 will be described. The spring 27 is connected to the spring support portion 23c and the inner end surface of the notch 37 of the click piece 15 through the adjacent spring support bar 38 in the same manner as the spring 26 described above. Incorporated between. Therefore, the lock piece 16 can also move in the same direction in conjunction with the click piece 15 (including the follow-up). In this embodiment, although not related to the specific requirements of the present invention, for example, the dummy piece 23 is made to follow the click piece 15 through the above-described vertical long holes 39 and 40 for movement control.

(7) Biasing means 47 for stopper 18
The urging means 47 for the stopper 18 will be described with reference to FIGS. The biasing means 47 is appropriately incorporated in a storage portion 46 such as a cutout portion and a storage groove formed in the base recess 24 shown in FIG. The biasing means 47 of this embodiment includes a coil spring 47a and a pressing piece 47b that presses the free end of the stopper 18 by the spring force of the coil spring 47a. The holding piece 47b is a relatively thin plate piece formed in an L-shape, for example. Therefore, the stopper 18 is urged by the urging means 47 so that the hook portion 18 a is always engaged with the engagement protrusion 19 a of the locked piece 19.

(8) Main operation of the drive plate 17 and the like First, FIG. 13 shows the inner operating member 8 from the indoor side 2 in the direction of arrow A (clockwise) in order to change the locking state of the locking / unlocking device X to the unlocked state. It is explanatory drawing when it turns. The leftmost diagram shows the locking / unlocking device X in a locked state. In the locked state, as a matter of course, the plurality of pushed push buttons 6 have the first engagement portions 6b appropriately engaged with the corresponding engagement holes 16a of the lock piece 16, respectively. Further, the hook portion 18 a at the distal end portion of the stopper 18 is engaged with the engagement protrusion 19 a of the locked plate 19.

  The intermediate view between the left view showing the locked state and the right view showing the unlocked state shows the position of the stopper of the release plate 21 when the inner operation member 8 is turned in the arrow A direction (clockwise) from the indoor side 2. A state is shown in which the stopper 18 is pushed up against the spring force of the biasing means 47 by the release engaging portion 21a. At this time, the stopper 18 rotates counterclockwise with the support shaft 20 as a fulcrum. Further, in this embodiment, as shown in FIG. 9, there is no “gap (play)” between the engagement surface of the engagement hole 42 of the release plate 21 and the engagement portion 9 a of the thumb turn bar. When rotating in the direction of arrow A, the hook portion 18 a of the stopper 18 is immediately separated from the engaging protrusion 19 a of the locked plate 19.

  As a result, the locked plate 19 and the like are rotatable. Therefore, the drive plate 17 that rotates in the direction of the arrow A at the same time or with a time difference pushes up the fingertip-like protrusion 17a while rotating the lower end 15b of the click piece 15. Then, the click piece 15 slides up against the spring force of the spring 25, and the locking claw 36 of the click piece 15 is separated from the second engaging portion 6c of the predetermined push button 6, and as a result, the push button is restored. It is reset by the spring force of the spring 30.

  Further, in this embodiment, when the click piece 15 is raised, the lock piece 16 and the dummy piece 23 are moved in the same direction as the click piece 15 (disengagement from the push button 6) by the spring force of the springs 26 and 27 as described above. Direction). When the drive plate 17 rotates to a predetermined position, other members also move to the predetermined position corresponding to the rotation position of the drive plate.

  Next, FIG. 14 is an explanatory view when the inner operation member 8 is turned in the arrow B direction (counterclockwise direction) from the indoor side 2 in order to set the unlocking state of the locking / unlocking device X to the locked state. When the inner operation member 8 is operated in the arrow B direction, the drive plate 17 and the like are in the reverse operation mode. That is, the unlocking plate 21 rotates without lifting the stopper 18 against the spring force of the biasing means 47 again. Then, the engagement protrusion 19 a of the locked plate 19 is locked to the hook portion 18 a of the stopper 18.

  The shapes of the engagement holes 41, 42, 43 of the drive plate 17 and the like of the present embodiment are formed symmetrically in the radially outward direction to the left and right of the center hole, and the insertion end of the operation shaft 9 Although it is a communicating hole which has the engagement wall with respect to the part 9a, the design change of the shape of these engagement holes can be suitably carried out in the range which does not change the essential part of invention. Here, the “essential part of the invention” means that when the release plate 21 rotates in the direction of arrow A (clockwise) in FIG. It means that the engagement hole of the locked plate 19 is formed so that at least the locked plate 19 starts rotating after the initial start.

  In this embodiment, the locked plate 19 and the drive plate 17 rotate in the same direction with a slight time difference from the initial start of the release plate 21. This slight time difference can be achieved, for example, by changing the shape and play of the engagement holes 41 and 43.

  The present invention is mainly used in the locksmith and joinery industries.

FIG. 1 to FIG. 14 are explanatory views showing the best embodiments of the present invention.
The schematic explanatory drawing seen from the free end surface side of the door which shows the implementation environment. Schematic explanatory drawing on the pedestal, push button, etc. when viewed from the outdoor side toward the outer wall surface of the door. The schematic perspective view seen from the back side of the base (the biasing member for stoppers is also shown). The schematic cross-section explanatory drawing which shows the internal structure of this invention. Explanatory drawing of each member seen from the back side of the pedestal (especially locked plate, stopper, click piece, spring, etc.). Explanatory drawing which shows the engagement relation of a push button and a click piece. Explanatory drawing which shows the engagement / disengagement relationship between a push button and a click piece. Explanatory drawing of main members (a drive plate, a release plate, a to-be-locked plate, etc.). An explanatory view of a relationship between an engaging portion of an operation shaft and an engaging hole such as a drive plate in a main portion. Explanatory drawing of main members (click piece, lock piece, stopper, etc.). The disassembled perspective view of main members (click piece, lock piece, stopper, etc.). Explanatory drawing of the biasing means for stoppers. Explanatory drawing when an inner side operation member is turned to the arrow A direction from the room inner side. Explanatory drawing when an inner side operation member is similarly turned to the arrow B direction.

Explanation of symbols

X ... locking and unlocking device, 1 ... door, 1a ... inner wall, 1b ... outer wall surface, 2 ... indoor side, 3 ... outdoor side, 5 ... outer base, 6 ... push button, 6a ... tip, 6b ... 1st engagement part, 6c ... 2nd engagement part, 7 ... Outer operation member, 8 ... Inner operation member, 9, 10 ... Operation shaft, 11 ... Locking piece, 12 ... Auxiliary front board, 13 ... Inner base , 14 ... connection means, 15 ... click piece, 16 ... lock piece, 17 ... drive plate for click piece, 18 ... stopper, 19 ... locked plate, 21 ... release plate, 23 ... dummy piece, 24 ... recess, 47 ... biasing means, 25, 26, 27 ... springs, 30 ... push button return springs, 41, 42, 43 ... engagement holes, 41a, 43a ... engagement receiving surfaces, 44, 45 ... gaps.

Claims (9)

 A push-button locking and unlocking device that is attached to the outer wall surface of the door and that allows the lock slide plate in the pedestal to be moved through a plurality of push buttons that are pushed based on the password. In the pedestal, at least a click piece and a lock piece that can be engaged with and disengaged from the push button are incorporated, and in the pedestal, the click piece driving plate is locked in the axial direction of the operating means and the stopper in the pedestal. When a lock plate and a release plate for releasing the stopper are incorporated so that the locked plate can be rotated, and the operation means on the indoor side is operated, each of the release plate and the drive plate is rotated. A push button type locking / unlocking device, wherein a click piece and a lock piece which are engaged with a push button are moved in a direction of releasing the engagement. In Claim 1, the stopper biasing means 47 is incorporated in the base recess 24, and the hook means 18a of the stopper 18 always engages with the engagement protrusion 19a of the locked piece 19 in the biasing means 47. A push-button type locking / unlocking device characterized by 3. The lock piece 16 according to claim 1 or 2, wherein the lock piece 16 pivotally supports one end of the stopper 18, and the lock piece and the stopper are linked together in the same direction when the click piece 15 moves. A push button type locking / unlocking device, characterized in that 2. When the inner operating member is operated, the predetermined push button locked to the click piece 15 is released from the click piece sliding by the driving force of the driving plate, and the spring in the base is released. A push button type locking / unlocking device which is automatically returned to an initial position by a spring 30 supported by a support plate 31. In Claim 1, the engagement receiving surface of the engagement hole of the locked plate and the engagement surface of the engaging portion of the operating means are arranged so that the locked plate starts rotating after the initial start of the release plate. A push button type locking / unlocking device characterized in that a slight gap is set between them. In Claim 1, It is between the engagement receiving surface of the engaging part of a drive plate, and the engaging surface of the engaging part of an operation means so that a drive plate may start rotation behind an initial start of a release plate. Is a push button type locking / unlocking device characterized by a slight gap. In claim 1, the pedestal 5 is formed with a recess 24 continuous in the length direction on the back side, and a drive plate, a release plate and a locked plate are provided in the recess in the axial direction of the operation member. And at least the click piece 15 and the lock piece 16 are installed side by side, and a plurality of spring members for urging the click piece and the lock piece in a predetermined direction are further incorporated. Push button type locking and unlocking device. 2. The push button type locking / unlocking device according to claim 1, wherein a dummy piece for a push button that moves in association with the movement of the click piece is disposed in the pedestal. 2. The push button type locking / unlocking device according to claim 1, wherein the operating shaft of the inner and outer operating members is a common thumb turn bar, and the thumb turn bar can be inserted or removed from the indoor side. .

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