JP4657764B2 - Push button lock - Google Patents

Description

  The present invention relates to a push button lock, and more particularly to a push button lock provided with an application / unlocking device attached to an outer wall surface of a door.

  Patent Document 1 proposes an example of a dial lock that can change the unlocking number. This dial lock has the following features: “When the number is converted, the number conversion block is inserted and removed to engage the two corresponding members so that they can be separated from each other. And a configuration in which the second ring stopper is engaged with the inner and outer inner cylinders, respectively.

  In the conventional dial lock, when setting a new personal identification number, as described in Patent Document 1, first, two members are separated from each other, and then one member is arbitrarily rotated and then the two members are engaged. This is a configuration to be combined. Therefore, at least two or more parts are required to set the password. Therefore, there was a problem that it took "labor" and "time" for number conversion.

By the way, there is Patent Document 2 as a configuration related to the push button locking / unlocking device of the present embodiment. The subject of the invention described in Patent Document 2 is to enable the same push button to be operated 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, this type of locking / unlocking device also has a problem that it is not easy to set a new password.
Japanese Patent Publication No. 2002-138720 Japanese Patent Publication No. 2003-138801

  An object of the present invention is to provide a button lock comprising a plurality of push buttons that are pushed and unlocked based on a personal identification number, and a lock piece that can be unlocked by the push buttons. The user can easily set a new password (unlocked) number simply by turning the knob.

  In other words, it is not necessary to recombine the operation members to be converted at the time of password conversion. Further, at the time of password conversion, the password can be immediately converted by simply operating (rotating and pulling away) the push button guide plate provided on the pedestal away from the push button knob. In addition, a desired personal identification number can be easily set based on the mark. Furthermore, a push button having a conversion knob can be easily manufactured.

  In addition, it is possible to eliminate the lock piece in the locked state with the stopper that prevents the rotation of the operation member and the push button engaged with the member in the pedestal only by operating the thumb turn member on the indoor side. It is compatible with button locks equipped with a locking / unlocking device.

The push button lock of the present invention comprises a plurality of push buttons provided on the pedestal in a state of being biased by a return spring and pushed based on a password, and a lock piece that can be unlocked by the push button. In the provided button lock, one end of a push button guide plate having a push button rotation restricting hole is pivotally supported on the base , and the push button is engaged with at least the shaft and the push button turn restricting hole. and having a personal identification number conversion knob portion for engagement, the engagement portion for alternately number conversion up and down along the axial direction is formed in the shaft portion, the push button guide plate, when personal identification number conversion, the The push button rotation restricting hole of the push button guide plate is opened so as to be separated from the PIN code conversion knob, and the PIN code conversion knob is rotated while the push button guide plate is opened. New password The push button set for unlocking) numbers, wherein the engaging portion is engageable with the engaged portion of the lock piece.

In the above-described configuration, a mark for converting the personal identification number is attached to the edge of the rotation restriction hole of the push button or / and the push button guide plate . Other features are described in the dependent claims.

(A) A new password (unlocking) number can be easily set by simply operating the knob of the push button. In other words, when the code number is changed, conventionally, it is necessary to replace the signs or to separate the operating members having the tacks (engagement pieces) and reassemble them (a series of actions such as separation, rotation, and engagement). However, these actions are no longer necessary. Therefore, a new password can be set in a short time. Also, the conversion means can be easily manufactured and does not cost.
(B) When the password is converted, the push button guide plate provided on the back side of the pedestal, for example , is operated (rotated and pulled away) without removing the push button as the operation member from the pedestal. Just by doing this, you can start working on your password immediately.
(C) In the case of an embodiment with a mark, a desired password can be easily set based on the mark.
(D) In some embodiments, the conversion knob only needs to be fixedly fitted to the end of the button shaft, so that the push button having the conversion knob can be easily manufactured.
(E) For example, as described in the embodiment of the invention, a stopper that prevents rotation of the operation member only by operating the thumb turn member on the indoor side, and a push button that is engaged with the member in the pedestal It can be applied to a button lock provided with a locking / unlocking device that can eliminate the lock piece in the locked state.

  Hereinafter, the best mode for carrying out the present invention shown in FIGS. 1 to 16 will be described.

(1) Environment for Implementation of the Invention FIG. 1 shows a button lock X to which the push button of the present invention is applied. This button lock X eliminates the lock piece in the locked state with the stopper that prevents the rotation of the operation member and the push button engaged with the member in the pedestal only by operating the thumb turn member on the indoor side. It is equipped with a locking / unlocking device.

  First, the entire environment of the button lock X will be described with reference to FIG. FIG. 1 is a schematic explanatory view seen from the free end side of the door 1. 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. Generally, 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 are located on the indoor side 2 There are various types, such as those in which the thumb turn shaft (drive core material) of the thumb turn knob and the drive shaft of the cylinder lock located on the outdoor side 3 are positioned coaxially and those that are not.

  In FIG. 1, the lock of the first rank is not particularly shown, but the button lock X is arbitrarily attached to the free end portion of the door 1 together with the first rank as the second rank or the third rank. It is attached. In that sense, the push button lock X of the present invention can also be referred to as an “auxiliary lock”. In addition, when attaching the base 5 of the pushbutton lock X to the outer wall surface 1b of the free end part of the door 1, the place where a finger | toe reaches each pushbutton 6 naturally is desirable.

  Now, 7 is an outer operation member as a thumb turn, while 8 is an inner operation as a thumb turn integrally connected to the outer operation member 7 via respective operation shafts (outer and inner thumb turn bars) 9 and 10. A member 11 is a locking piece that protrudes and retracts from the auxiliary front plate 12 when the thumb turns 7 and 8 are rotated, and 13 is an inner plate-like pedestal connected to the pedestal 5 via a connecting means 14. FIG. 2 shows the arrangement of the push buttons 6 with the front cover for the push buttons 6 cut away when the push button lock X is viewed from the outside. As apparent from FIG. 2, a numerical numeral is attached to the tip 31 of the push button 6. In FIG. 2, the rear end portion (the conversion knob) of the push button 6 is not visible.

(2) Configuration of the push button lock X The push button lock X is attached to the outer wall surface 1b of the door 1 and is installed in the pedestal 5 via a plurality of push buttons 6 that are pushed based on a personal identification number. It is equipped with a locking / unlocking device that makes the lock piece movable.

As shown in FIG. 6 and FIG. 7, this locking / unlocking device incorporates at least a plurality of push buttons 6 and detachable click pieces 15 and lock pieces 16 in a pedestal 5. 15 and the lock piece 16, the operating shafts of the operating means 7 and 8 in the pedestal 5, the click piece drive plate 17 in the axial direction of the 10, and the stopper 18 that is directly or indirectly rotatable in the pedestal 5. When a lock plate 19 locked to the lock plate 19 and a release plate 21 for releasing the lock of the stopper 18 are incorporated so that the lock plate can rotate, the knob 8a of the operation means 8 on the indoor side is operated. , move the click piece 15 and the lock piece 16 in a predetermined push button 6 and the engaging relationship through each rotation of the object locking plate 19 and drive plate 17 in the direction of engagement eliminated To a configuration.

  Therefore, the main constituent members of the locking / unlocking device are the pedestal 5, the plurality of push buttons 6 capable of converting the password, 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, the locked plate 19, the release plate 21, and the like. Additional requirements such as a recess 24 formed in the pedestal 5 in relation to these members, a biasing means for the stopper 18, a dummy piece 23 for a push button that moves in association with the movement of the click piece, and the like are required. It is added accordingly.

(3) Pedestal 5
Next, the base 5 of the push button lock X will be described. The base 5 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 (a member having several communicating recesses inside) made of metal or synthetic resin and opened on the back side, and all structural members necessary for the application / unlocking device are all 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 a co-located state in the large space 24c corresponding to the recess (see FIGS. 6 and 7).

  As shown in FIG. 4, a plurality of cylindrical support members 28 are provided in the recess 24 of the pedestal 5 at a predetermined interval. These support portions 28 have internal threads, and have a function of fixing the base back plate 29 shown in FIG. 5 via a plurality of fixing tools 30 and a stopper function of stopping the drive plate and the like at predetermined positions. . The back plate 29 is an item indirectly related to the main part or the main part of the present invention. The back plate 29, the push button guide plate, and the like will be described later.

(4) Push button 6 and click piece 15
The push button lock X of the present embodiment has a front cover 20 on the front side, and when the front cover 20 is opened upward, for example, the tip 31 of the push button 6 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 push button 6 moves to the back side of the base 5 when a predetermined push button is pressed based on the password, and the engagement with the locking plate in the base 5 is canceled. In this embodiment, since the lock member engaged with the push button 6 is the lock piece 16, when the predetermined push button is pressed based on a preset personal identification number, the push button 6 is locked to the lock piece 16. Can be solved. By the way, although not directly related to the present invention, as one of the features of the push button lock X, there is a “relationship relationship between the click piece 15 and the push button 6”. FIG. 11 schematically shows the engagement / disengagement relationship. This engagement / disengagement relationship will be described after the specific configuration of the push button 6 is described.

(5) Specific Configuration of Push Button 6 An example of the push button 6 is shown in FIGS. Referring to FIG. 9, the push button 6 preferably includes a spring member and is composed of a total of “5” parts. That is, 31 is a cap-shaped operation part, and this operation part 31 is provided around a fitting part 31a with a sign such as a numeral on its surface, an opening end of the fitting part 31a, and a pedestal. And a flange portion 31b that can be locked to an edge portion of the engagement hole 5a of the push button 6 formed in the push button 6.

  The fitting portion 31 a corresponds to the tip portion of the push button 6. The outer dimension of the fitting portion 31a is appropriately set in consideration of the inner diameter of the engagement hole 5a on the base 5 side (left side in FIG. 6).

  Reference numeral 32 denotes a fixing means for the long plate-shaped button shaft portion 33, and the fixing means 32 is fixedly fitted to the fitting portion 31 a, while the tip end portion 33 a of the button shaft portion 33 is fixed to the fixing means 32. The engagement groove 32a is fixedly engaged. Reference numeral 34 denotes a spring member (for example, a compression coil spring) wound around the button shaft portion 33. As shown in FIG. 6, the spring member 34 has the flange portion 31b of the fitting portion 31a described above at the edge of the engagement hole 5a. Energize to hit the club.

  Therefore, when the resetting is performed by appropriate reset means (for example, reset button, inner operation member 8, etc.), the push button 6 is initially locked (locked) with respect to the lock piece 16 by the spring force of the spring member 34. It returns to the position (position where the flange portion 31b hits the edge of the engagement hole 5a).

  Reference numeral 35 denotes a PIN code conversion knob that is fixedly engaged with or fitted to the rear end 33b of the button shaft 33. A flange portion 35a that can be locked to the inner wall surface of the back plate 29 is provided around the front end portion of the knob portion 35, while a mark M1 is attached to the rear end surface.

  Thus, as shown in FIG. 8, the button shaft portion 33 is formed with notch-like engaging portions 36, 36 for changing the code number alternately in the vertical direction along the axial direction. The notched engaging portions 36 and 36 are required to be “two or more” at least in the axial direction in relation to the lock piece 16 constituting the locking / unlocking device of the push button lock X.

  Here, the case of setting a new unlocking number will be described. As shown in FIG. 12, the push button 6 that is operated to turn the knob 35 and set to a new password (unlocking) number, The horizontal cut-out engaging portions 36 and 36 are engageable with the engaged portion (for example, engagement hole) 16 a of the lock piece 16. In this embodiment, when the password is converted, the push button 6 to be converted is inverted by “180 degrees”. Then, the directions of the engaging portions 36, 36 of the push button 6 are reversed. Therefore, the place where the cut-out portion for unlocking has been used up to now is simply unturned. The part that was the notch for unlocking is replaced with the notch for unlocking.

  By the way, in this embodiment, a push button guide plate 51 is attached to the back side of the base 5 so as to be opened and closed. The push button guide plate 51 has a rotation restricting hole 54 that engages with the rear end portion of the push button when the password is not changed. Therefore, the push button guide plate 51 will be described.

(6) Push button guide plate 51
FIG. 5 is an exploded perspective view of the push button guide plate 51 and the fixed back plate 29 related to the push button guide plate 51. The push button guide plate 51 may be pivotally supported on the back side of the pedestal 5 so that it can be opened and closed directly. In this embodiment, the push button guide plate 51 is pivotally supported by a fixed back plate 29 that closes the recess 24 of the pedestal. . Here, the configuration of the fixed back plate 29 will be described (details are not a limitation requirement of the present invention, and will be described briefly).

  The fixed back plate 29 is formed with a through hole for the push button 6, a through hole for the support portion 28, and a hole for the fixing tool 30, each of which is not appropriately labeled. A portion related to the push button guide plate 51 is a support portion 37 for the push button guide plate 51, which is a bent portion having an inverted U-shape on the end surface formed on the upper end portion 29a side, and slightly on the left and right end portions of the support portion 37. This is that a pair of wide fitting cutout portions 38, 38 are formed.

  Therefore, a pair of engaging pieces 52, 52 that can be supported by the support portion 37 via the fitting cutout portions 38, 38 are formed on the upper end portion 51 a of the push button guide plate 51 so as to protrude left and right.

  Thus, small protrusion-like shaft portions 53 and 53 are provided on the outer wall surfaces of the engagement pieces 52 and 52, respectively, and these shaft portions 53 and 53 receive the elastic deformation force and the elastic return force of the material itself. It is detachably attached to the back plate 29 through engaging pieces 52, 52 having the same.

  Further, the push button guide plate 51 has rotation restricting holes 54 for the push buttons 6 corresponding to at least the number of push buttons 6, and these rotation restricting holes 54 are formed in, for example, a track shape, and the push buttons 6 are It has a function to guide in the horizontal direction and a rotation restricting function to prevent rotation. When the password is not converted, the rotation restricting hole 54 of the push button guide plate 51 is engaged with the conversion knob (rear end) 35 of the push button.

  On the other hand, an elastic engagement knob 55 is formed to protrude from the lower end 51 b of the push button guide plate 51. This elastic engagement knob 55 can be engaged with and disengaged from the engaged portion 39 of the back plate 29. When the push button guide plate 51 is lifted up to a predetermined angle (for example, 90 degrees) via the elastic engagement knob 55, the push button guide plate 51 is supported by the support portion 37 of the back plate 29, and is lifted as indicated by the phantom line shown in FIG. Stop at.

  By the way, although it has been described that the mark M1 is attached to the conversion knob 35 of the push button, as shown in FIG. 3, the push button guide plate 51 of the present embodiment has each rotation restricting hole 54. Is provided with a mark M2 for converting the password. Accordingly, the push button guide plate 51 is lifted, and then the desired push button 6 is turned over while referring to the mark M1 on the conversion knob 35 side and the mark M2 on the push button guide plate 51, and a new unlock number is arbitrarily set. Can be set to When a new unlock number is set, the push button 6 is reset using appropriate reset means (for example, the inner operation member 8) as described above. Then, next, an example of reset will be described.

(7) Reset of Push Button 6 FIG. 13 shows that when the inner operation member 8 is operated, the predetermined push button 6 locked to the click piece 15 is moved from the click piece 15 that slides by the driving force of the drive plate 17. The arrow indicates that the latch is released and automatically returns to the initial position by the spring force of the push button return spring 34 supported by the dummy piece 23 in the base 5.

  That is, in the click piece 15, three rows of guide openings 60 are appropriately formed in the length direction corresponding to the positions of the push buttons 6, but a plurality of (for example, the click pieces 15, for example, face the guide openings 60. Ten) locking claws 61 are provided at a predetermined interval.

  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 engaging portion not attached with the reference numeral is locked by the locking claw 61 of the click piece 15 when it is pushed, it does not return to the initial position. That is, since the engaged portion of the pushed push button 6 is caught by the latching claw 61 of the click piece 15, it cannot return to the original position even if the push button return spring 34 is acting. . 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, as shown in FIG. 14, the fingertip-like protrusion 17 a of the drive plate 17 pushes up while rotating one end surface (the lower end surface in FIG. 7) of the click piece 15. As a result, the locking claw 61 of the click piece 15 that slides (for example, rises) against the spring force of the spring 25 for the click piece 15 moves away from the engaging portion 35a of each push button 6 that is set to be released, and the push button It is reset by the spring force of the return spring 34.

(8) Click piece 15 , lock piece 16, etc. In this embodiment, click piece 15 is not a limiting requirement of the present invention, but click piece 15 , lock piece 16, etc. will be described with reference to FIGS. 15 and 16. . In the pedestal 5, at least a click piece 15 and a lock piece 16 that are detachable from the push button 6 are incorporated. Further, a dummy piece 23 for a push button that moves (synchronized movement, follow-up, etc.) in association with the movement of the click piece 15 is provided.

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, for example, 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 19 are arranged 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 installed in the side-by-side state, and a plurality of spring members 25 that urge these pieces 15, 16, 23 in a predetermined direction, respectively. 26 and 27 are collectively incorporated in the space portion 24b on the upper end side of the base 5.

  Therefore, the configuration of the click piece 15, the lock piece 16, and the like will be described. First, the thick plate-like click piece 15 has a guide opening 60 and a locking claw 61. With reference to FIG. 16, the upper end portion 15a of the click piece 15 is formed in an arc shape along the curvature of the upper end portion of the pedestal 5, and the arc-shaped upper end portion 15a is used for storing the spring members 25, 26, and 27. One or a plurality of (in this embodiment) cutout recesses 62 are formed. In the notch recess 62, a plurality (three) of spring support bars 63 extending outward from the inner end face of the notch are provided.

  Therefore, the long spring member 25 for the click piece 15 is provided on the spring support bar 63 located on the left side, and the two spring support bars 63 and 63 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. The lock piece 16 has a plurality of engagement holes 16a and protruding portions 16b. Further, with reference to FIG. 16, 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 recesses of the spring support portion 16 c and the click piece 15 are formed. The spring member 26 is assembled between the inner end face of the location 62 via the rightmost spring support bar 63.

  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. Further, a vertical long hole 65 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 66 for controlling the movement of the dummy piece formed in the central 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 formed in the spring support portion 23c and the notch recess 62 of the click piece 15 via the adjacent spring support bar 63 in the same manner as the spring 26 described above. Built in between the end faces. 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 65 and 66 for movement control.

  The essential matter of the present invention is that the (button) shaft portion 33 of the push button is formed with notch-shaped engaging portions for number conversion alternately up and down along the axial direction, and the shape of the push button is an example. Only. Therefore, the shape of the shaft portion 33 of the push button may be a columnar shape, a rod-shaped body, or the like.

  Further, even if the notch engaging portion (male side or female side) 36 of the push button and the engaged portion (female side or male side) 16a of the lock piece are replaced with each other, the essential matter of the invention is not changed. There is no. For example, a notch-shaped engaging part (for example, an edge part of the notch) of the push button can be engaged with an engaged part (for example, an engaging hole) of the lock piece, and the knob of the push button is turned. The push button that has been operated and set to a new password (unlocked) number may be configured such that its inverted horizontal cutout engaging portion can be engaged with the engaged portion of the lock piece.

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

1 to 16 are explanatory views showing the best embodiment 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. Schematic explanatory drawing seen from the back side of a base (especially the relationship between a push button guide plate and a push button). The schematic perspective view which looked at the base from the back side. Exploded perspective view of main parts related to push buttons (back plate and push button guide plate) BRIEF DESCRIPTION OF THE DRAWINGS FIG. Explanatory drawing of each member seen from the back side of the pedestal (push button, locked plate, stopper, click piece, spring, etc.). The front view of a main member (push button). The disassembled perspective view of a main member (push button). Explanatory drawing which shows the engagement relation of a main member (push button), a lock piece, etc. Explanatory drawing which shows the engagement relation of a main member (push button) and a click piece. Schematic explanatory drawing in the case of setting a new PIN. Explanatory drawing which shows the engagement / disengagement relationship between a push button and a click piece. Explanatory drawing when an inner side operation member is turned to the arrow A direction from the room inner side. The disassembled perspective view of main members (click piece, lock piece, stopper, etc.) before lock. Explanatory drawing from the front of the main member of a lock.

X: Push button lock, 1 ... Door, 1a ... Inner wall surface, 1b ... Outer wall surface, 2 ... Indoor side, 3 ... Outdoor side, 5 ... Outer base, 5a ... Engagement hole, 6 ... Push button, 7 ... Outer side Operation member, 8 ... inner operation member, 8a ... knob, 9, 10 ... operation shaft, 11 ... locking piece, 12 ... auxiliary front plate, 13 ... inner base, 14 ... connecting means, 15 ... click piece, 15a ... The upper end of the click piece, 16 ... the lock piece, 16a ... the engaged portion, 16b ... the protrusion, 16c ... the spring support, 16e ... the stopper support, 17 ... the drive plate for the click piece, 17a ... the tip of the fingertip, DESCRIPTION OF SYMBOLS 18 ... Stopper, 19 ... Locked plate, 21 ... Release plate, 23 ... Dummy piece, 23a ... Engagement hole, 23c ... Spring support part, 24 ... Recess, 24a ... One end side, 25, 26, 27 ... Spring 28 ... Supporting part 29 ... Back plate 29a ... End part, 30 ... Fastening tool, 31 ... Operation part, 31a ... Fitting part, 31b ... Flange part, 32 ... Fixing means, 32a ... Engaging groove, 33 ... Button shaft part, 33a ... Tip part, 33b ... Rear end , 34... Push button return spring member, 35... Knob part, 36... Number conversion engagement part, 37... Support part, 38 ... notch part, 39 ... engaged part, 41, 42, 43. Hole 41a, 43a ... engagement receiving surface 44, 45 ... gap, 47 ... biasing means 51 ... push button guide plate, 51a ... upper end, 51b ... lower end, 52 ... engagement piece, 53 ... shaft 54 ... Rotation restricting hole, 55 ... Elastic engagement knob, M1 ... Mark on the push button side, M2 ... Mark on the guide plate side.

Claims (5)

In a button lock provided with a plurality of push buttons which are provided on the pedestal in a state of being biased by a return spring and which are pushed based on a password, and a lock piece which can be unlocked by the push buttons, One end of a push button guide plate having a push button rotation restricting hole on the base is pivotally supported , and the push button engages at least the shaft and the push button turn restricting hole. And at the shaft portion, engaging portions for number conversion are formed alternately in the vertical direction along the axial direction, and the push button guide plate is used for the push button of the push button guide plate when the code number is converted. The rotation restriction hole is opened so as to be separated from the PIN code conversion knob, and the PIN code conversion knob is rotated while the push button guide plate is opened, and a new password (unlocked) number is obtained. set against the Pushbutton, pushbutton lock, wherein the engaging portion is engageable with the engaged portion of the lock piece.
In claim 1, the edge portion of the rotation restricting hole of the push button or / and the push button guide plate, a push button lock, wherein a mark for conversion identification numerals.
2. The push button according to claim 1, wherein the other end of the push button guide plate is detachably attached via an engagement piece having an elastic deformation force and an elastic return force of the material itself. Tablets.
2. The push button lock according to claim 1, wherein the push button lock includes a plurality of push buttons and a click piece that can be engaged and disengaged.
2. The push button lock according to claim 1, wherein the push button lock further includes a dummy piece that is detachable from the push button.

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