JP2009057732A - Button lock device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To prevent a difference in feeling from occurring when a button is pressed irrespective of whether the button restrains the movement of a lock plate in a non-pressed state or a pressed state. <P>SOLUTION: This button lock device comprises the lock plate 80 disposed movably between a lock state and an unlock state, a plurality of buttons 52 restraining the movement of the lock plate 80 at one of a projecting position and a pressed position and allowing the movement of the lock plate 80 at the other position, a coiled spring 81 biasing the lock plate 80 toward the unlock position, and a lock plate movement restraining part 88 movable between a lock plate movement restraining position for maintaining the lock plate 80 at the lock position and a lock plate movement allowing position for allowing the movement of the lock plate 80 from the lock position to the unlock position. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a technique for locking and unlocking a cabinet or the like.

  Some button-type locking devices include a plurality of buttons that can be pushed in and a lock plate that is movable between a first position and a second position. Each button abuts against the lock plate in one of the non-pressed state and the pressed state to restrict its movement, and allows the lock plate to move in the other state. Then, only when a predetermined combination of the buttons is pushed in, the lock plate is moved from the first position to the second position by applying a manual operation force, so that the unlocked state is achieved. It can be done.

  As a prior art related to the invention of the present application, for example, there is one described in Patent Document 1.

Japanese Examined Patent Publication No. 62-54951

  However, in the button-type locking device as described above, when the lock plate is strongly pressed from the first position toward the second position by a manual operation force, when the button is pressed, the button is not pressed. There is a possibility that the touch feeling will be different depending on whether the button is in contact with the lock plate or the button is in contact with the lock plate in the pressed state.

  Therefore, an object of the present invention is to prevent a difference as much as possible to feel when the button is pressed, regardless of whether the button restricts the movement of the lock plate in the non-pressed state or the pressed state.

  In order to solve the above-described problem, a button-type locking device according to a first aspect is provided with a lock built-in main body, and is disposed on the lock built-in main body so as to be movable between a locked position and an unlocked position. A lock plate and a lock built-in main body portion are disposed so as to be able to be pushed from a protruding position toward a pushing position, and the lock plate is unlocked from the locking position at one of the protruding position and the pushing position, respectively. A plurality of buttons for restricting movement to a position and allowing the lock plate to move from the locked position to the unlocked position at the other position, and moving the lock plate from the locked position to the unlocked position. A lock plate urging member for urging the lock plate, a lock plate movement restricting position for maintaining the lock plate in the locked position, and the lock plate moving from the locked position to the unlocked position. That is obtained by a movable locking plate movement restricting portion between the lock plate movement allowing position to allow the.

  A button-type locking device according to a second aspect is a button-type locking device that is attached to an opening / closing member that is openable / closable with respect to a storage main body, the device main body being attachable to the opening / closing member, and the opening / closing A lock built-in main body portion that is movable between an unopenable position that disables the opening operation of the member and an openable position that enables the open operation of the opening and closing member; and A lock plate movably disposed between a locking position for maintaining the lock built-in main body portion in the unopenable position and an unlocking position for allowing the lock built-in main body portion to move to the openable position; The lock built-in main body portion is disposed so as to be able to be pushed from a protruding position toward a pushing position, and the lock plate moves from the locking position to the unlocking position at one of the protruding position and the pushing position, respectively. Of the other side A plurality of buttons that allow the lock plate to move from the locked position to the unlocked position, and a lock plate biasing member that biases the lock plate from the locked position toward the unlocked position; Lock plate movement movable between a lock plate movement restricting position for maintaining the lock plate in the locking position and a lock plate movement allowing position for allowing the lock plate to move from the locking position to the unlocking position. And a regulation section.

  A button-type locking device according to a third aspect is the button-type locking device according to the first or second aspect, wherein the lock plate movement restricting portion is moved by the biasing force larger than that of the lock plate biasing member. A lock plate movement restricting portion urging member that urges the lock plate movement restricting position toward the lock plate movement restricting position is further provided, and the lock plate movement restricting portion is allowed to move the lock plate from the lock plate movement restricting position. An operating portion that receives an operating force toward the position, and restricts movement of the lock plate at the lock plate movement restriction position, and moves the lock plate with movement from the lock plate movement permission position to the lock plate movement restriction position. A lock that can come into contact with the lock plate so as to move from the unlocked position to the locked position. Those having a rate contact piece.

  According to the button-type locking device according to the first aspect, the lock plate can be moved from the locking position to the unlocking position by pressing one or more of the plurality of buttons into the pressing position. At this time, the lock plate is urged and moved from the lock position to the unlock position by the lock plate urging member. For this reason, the frictional force between the button and the lock plate can be reduced as compared with the case where the lock plate is strongly pressed by a manual operation force. As a result, there is no difference as much as possible when the button is pressed between when the button restricts the movement of the lock plate at the protruding position and when the button restricts the movement of the lock plate at the pushed position. Can be.

  According to the button-type locking device according to the second aspect, the lock plate can be moved from the locking position to the unlocking position by pressing one or more of the plurality of buttons into the pressing position. And when a lock plate moves to an unlocking position, a lock built-in main-body part can be moved to an openable position, and an opening-and-closing member can be opened. When the lock plate moves to the unlocking position, the lock plate is urged and moved from the locking position to the unlocking position by the lock plate urging member. For this reason, the frictional force between the button and the lock plate can be reduced as compared with the case where the lock plate is strongly pressed by a manual operation force. As a result, there is no difference as much as possible when the button is pressed between when the button restricts the movement of the lock plate at the protruding position and when the button restricts the movement of the lock plate at the pushed position. Can be.

  In addition, in a state where the lock plate is in the locked position, the lock built-in main body portion can be maintained at the unopenable position, and the opening operation of the opening / closing member can be kept impossible.

  Further, according to the button-type locking device according to the third aspect, the lock plate movement restriction portion is moved from the lock plate movement restriction position to the lock plate movement restriction position against the urging force of the lock plate movement restriction portion urging member. By pushing into the position, the lock plate is moved from the locked position to the unlocked position by the biasing force of the lock plate biasing member. Further, by releasing the operation force to the lock plate movement restriction portion, the lock plate movement restriction portion is allowed to move from the lock plate movement restriction position to the lock plate movement restriction position by the urging force of the lock plate movement restriction portion urging member. The lock plate is moved from the unlocked position to the locked position by the lock plate abutting piece while moving toward the position. Accordingly, the lock plate is moved to the unlocked position by pushing the lock plate movement restricting portion with an operating force, and the lock plate is moved to the locked position by releasing the operation force on the lock plate move restricting portion. And the lock plate can be easily moved between the locked position and the unlocked position.

  Hereinafter, the button type lock device according to the embodiment will be described.

<1. Applicable objects of button type lock device>
First, the overall configuration of a lockable storage device to which the button type lock device is applied will be described. FIG. 1 is a perspective view showing the overall configuration of the lockable storage device.

  The lockable storage device 10 includes a cabinet 12 as a storage device and a button-type lock device 20.

  The cabinet 12 includes a storage main body 14, doors 16 a and 16 b as opening / closing members that can be freely opened and closed with respect to the storage main body 14, and a drawer portion 18 as an opening / closing member. More specifically, a storage space 14 a is formed in the upper half of the storage main body 14, and three storage spaces 14 b, 14 c, 14 d are formed in the lower half of the storage main body 14. Double-open doors 16a and 16b are attached to the opening of the storage space 14a so as to be freely opened and closed. Further, in each of the storage spaces 14b, 14c, 14d, a drawer 18 is provided so as to be opened and closed, in other words, can be pulled out and pushed in.

  When the doors 16a and 16b are closed, the joints of the doors 16a and 16b are arranged so as to overlap each other, and when one door 16a (the right side in FIG. 1) is closed, the other The door 16b (left side in FIG. 1) cannot be opened. Further, a handle portion 17a as an operation portion and a latch mechanism 17b are attached to one door 16a. The latch mechanism 17b is a mechanism that is incorporated in the door 16a and locks to keep the door 16a closed. As such a mechanism, various configurations including a known mechanism in which the claw portion is detachably engaged with the storage main body portion 14 side can be adopted. The handle portion 17a is attached to the outer surface side of the door 16a so that the posture can be freely changed. In conjunction with the change in the posture of the handle portion 17a, the latch mechanism 17b locks the door 16a to be closed or releases the locked state.

  Then, by closing the doors 16a and 16b, the latch mechanism 17b is locked and the doors 16a and 16b are kept closed. Further, in this state, by performing a release operation so as to pull the handle portion 17a, the locked state of the latch mechanism 17b is released, and the door 16a can be opened. Further, the door 16b can be opened by opening the door 16a. That is, the handle part 17a functions as an operation part for releasing the locked state of the doors 16a and 16b.

  Moreover, the drawer | drawing-out part 18 is formed in the bowl shape opened upwards, and has the handle part 19a, the operation lever 19b, and the latch mechanism 19c.

  The latch mechanism 19c is incorporated in a portion on the front surface side of the drawer portion 18, and is a mechanism that locks the drawer portion 18 so as to keep it closed. As such a mechanism, various configurations including a well-known mechanism in which the claw portion is detachably engaged with the storage main body portion 14 can be adopted.

  The handle portion 19 a is a gripping member provided for facilitating the extraction of the extraction portion 18, and is provided on the front surface of the extraction portion 18. The operation lever 19b is attached to the inside of the handle portion 19a so that the posture can be changed. In conjunction with the change in the attitude of the operating lever 19b, the latch mechanism 19c locks the drawer 18 so as to be closed or releases the locked state. That is, the operation lever 19b functions as an operation unit for releasing the locked state of the drawer 18.

  Then, by closing the drawer portion 18, the latch mechanism 19c is locked, and the drawer portion 18 is kept closed. Further, in this state, by grasping and operating the operation lever 19b, the locked state of the latch mechanism 19c is released, and the drawer portion 18 can be pulled out by grasping the handle portion 19a.

  This button type lock device 20 is attached to the outer surface of the door 16a and the drawer part 18 in the cabinet 12 as described above. More specifically, as shown by a two-dot chain line in FIG. 1, the button-type locking device 20 includes a position that covers the handle portion 17 a in the door 16 a, and a position that covers the handle portion 19 a and the operation lever 19 b in each drawer portion 18. Mounted in position.

  The button-type lock device 20 may be configured to be retrofitted to the cabinet 12 or may be configured to be attached from the beginning. Further, the button-type lock device 20 may be configured so as to be inseparably integrated with the cabinet 12.

<2. Button-type locking device>
<2-1. Overall configuration of the button-type lock device>
The overall configuration of the button-type lock device 20 will be described. FIG. 2 is an exploded perspective view showing the button-type lock device, FIG. 3 is a schematic perspective view showing the button-type lock device in a state where the lock built-in main body portion is moved to the open position, and FIG. It is a schematic perspective view which shows the button type locking device in the state which the main-body part moved to the unopenable position.

  The button-type locking device 20 includes a device main body 22 and a lock built-in main body 40.

  The apparatus main body 22 is a member attached to the front surface of the door 16a as the opening / closing member or the drawer 18 and has a window 25 that exposes the handle 17a or the operation lever 19b as the operation unit. The apparatus main body 22 supports the lock built-in main body 40 so as to be movable between an openable position and an unopenable position. And in the state which moved the lock | rock built-in main-body part 40 to the position which can be opened (refer FIG. 3), while the handle part 17a or the operation lever 19b is exposed from the window part 25, the lock | rock built-in main-body part 40 cannot be opened. In the state of being moved to (see FIG. 4), the lock built-in main body portion 40 covers the handle portion 17a or the operation lever 19b in an inoperable manner.

  More specifically, the apparatus main body 22 has a plate-like member 24 and a pair of guide rails 26.

  The plate-like member 24 is formed into a plate-like member having a larger extent than the handle portion 17a and the operation lever 19b, here, a substantially square plate-like member. Further, the plate-like member 24 has a window portion 25 large enough to expose the handle portion 17a or the operation lever 19b. In this case, a substantially rectangular window portion 25 is provided at one end side portion of the plate-like member 24. Is formed. The plate-like member 24 is attached and fixed to the front surface of the door 16a or the drawer portion 18 so that the handle portion 17a or the operation lever 19b is exposed through the window portion 25. This plate-like member 24 is attached and fixed to the front surface of the door 16a and the drawer portion 18 in such a manner that it cannot be easily removed, such as a strong adhesive, a strong adhesive tape, screwing, welding or the like.

  In addition, the edge of one end of the plate-like member 24 with respect to the window portion 25 is formed in a retaining portion 24a having a larger thickness than the other portions. The retaining portion 24 a has a role of preventing the lock built-in main body portion 40 from being pulled out from one end portion of the plate-like member 24.

  Further, the plate-like member 24 is formed with a first operation hole 24b and a second operation hole 24c. The role of the first operation hole 24b and the second operation hole 24c will be described later.

  The pair of guide rails 26 have guide grooves 28 that support the lock built-in main body 40 movably between the unopenable position and the openable position on the plate-like member 24. More specifically, the guide rail 26 is formed in a rod-like member, and is fixed to both side portions of the plate-like member 24 by screwing or the like along the edge portion. Further, a guide groove 28 extending along the longitudinal direction is formed on the surfaces of the pair of guide rails 26 facing each other. Each guide groove 28 is closed at the end on the side where the lock built-in main body 40 moves to the unopenable position, and is opened at the end on the side where the lock built-in main body 40 moves to the openable position. is doing. Thereby, the lock built-in main body 40 can be attached to each guide groove 28 from the open end side, and prevention from coming off from the closed end side is achieved.

  Each guide groove 28 is formed with a position restricting recess 28 a and a retaining recess 29. The position restricting recess 28a is formed at a position where it can be engaged so that a retaining piece 44 described later fits in the state where the lock built-in main body 40 is moved to the unopenable position. Further, the retaining recess 29 is formed at a position where it can be engaged so that a retaining piece 44 described later fits in the state where the lock built-in main body 40 is moved to the openable position.

  The lock built-in main body portion 40 is detachably attached to the device main body portion 22 and, when attached to the device main body portion 22, the handle portion 17a or the operation lever 19b cannot be opened. (See FIG. 4) and a position where the handle 17a or the operation lever 19b can be opened (see FIG. 3).

  More specifically, the lock built-in main body 40 is formed in a flat, generally bowl-like shape that can be disposed between the pair of guide rails 26. That is, in the direction connecting the pair of guide rails 26, the lock built-in main body 40 has a dimension slightly smaller than the dimension between the pair of guide rails 26. Further, in the extending direction of the pair of guide rails 26, the lock built-in main body 40 has a dimension capable of closing the window part 25, that is, the dimension of the window part 25 in the same direction in the extending direction of the guide rail 26. Is bigger than.

  In addition, guide protrusions 42 are provided at both end portions on both sides of the lock built-in main body 40 along the extending direction of the both sides. Each guide protrusion 42 has a long shape that is movable along the guide groove 28.

  Then, each guide protrusion 42 is inserted into the guide groove 28 of the pair of guide rails 26 from the open end side thereof by inserting the guide protrusions 42 on both outer surfaces of the lock built-in main body 40, so that each guide protrusion 42 becomes a pair of guides. It is supported so as to be movable along the guide groove 28 of the rail 26. Thereby, the lock built-in main body 40 is on one main surface of the plate-like member 24, and the handle portion 17a or the operation through the window portion 25 is closed by closing the window portion 25 between the pair of guide rails 26. Between the unopenable position (see FIG. 4) that disables the operation of the lever 19b and the openable position (see FIG. 3) that allows the handle portion 17a or the operation lever 19b to be operated by opening the window 25. It is supported so that it can move freely.

  The lock built-in main body 40 is provided with a retaining piece 44 that protrudes while being biased toward the guide groove 28 of the pair of guide rails 26 (see FIG. 2).

  The retaining piece 44 is formed in an elongated shape with one end narrow and the other end wide. The narrow portion of the retaining piece 44 is pivotally supported on both side portions of the lock built-in main body 40 in a posture in which the wide portion 45 of the retaining piece 44 faces the release end side of the guide groove 28. ing. In a state in which the narrow width portion of the retaining piece 44 is pivotally supported on both side portions of the lock built-in main body portion 40, the projecting posture in which the wide width portion 45 of the retaining piece 44 projects from both outer surfaces of the lock built-in main body portion 40. The posture can be freely changed between a retracted posture in which the wide portion 45 is retracted to both outer surface sides of the lock built-in main body 40. Further, a torsion coil spring (not shown) is attached to the shaft support portion of the retaining piece 44 as an urging means for urging the retaining piece 44 in the protruding direction.

  When the lock built-in main body 40 moves between the unopenable position and the openable position, the retaining pieces 44 move in the guide grooves 28 of the pair of guide rails 26, respectively. When the lock built-in main body 40 is moved to the unopenable position, each retaining piece 44 is engaged with the position restricting recess 28a by the urging force in the protruding direction. Thereby, the lock built-in main body 40 is stopped and held at the unopenable position. On the other hand, in a state where the lock built-in main body 40 is moved to the openable position, each retaining piece 44 engages with the retaining recess 29 by the urging force in the protruding direction. Thereby, the lock built-in main body 40 is stopped and held at the openable position in a positioning manner.

  The end of the wide portion 45 of the retaining piece 44 is formed on a contact surface 45a that is substantially vertical along the extending direction of the guide groove 28 with the retaining piece 44 protruding. .

  Then, when the lock built-in main body 40 is moved in a state where the main retaining piece 44 is fitted in the position restricting recess 28a, the retaining piece 44 is retracted while being in contact with the inclined surface of the position restricting recess 28a. , Easily disengage from the position restricting recess 28a. In addition, if the lock built-in main body 40 is moved to the closed end side of the guide groove in a state where the full retaining piece 44 is fitted in the retaining recess 29, the retaining piece 44 comes into contact with the inclined guide surface. It retracts while being easily removed from the retaining recess 29.

  On the other hand, if the lock built-in main body 40 is moved to the open end side of the guide groove 28 in a state in which the main retaining piece 44 is fitted in the retaining recess 29, the contact surface 45 a of the retaining piece 44 is changed. Abutting against the retaining surface 29b of the retaining recess 29, the engagement state is maintained. This restricts the lock built-in main body 40 from moving from the openable position to the release end side of the guide groove 28.

  In the present embodiment, the lock built-in main body portion 40 covers the handle portion 17a and the operation lever 19b as the operation portion in an inoperable position, and the handle portion 17a and the operation lever as an operation portion in the open position. Although 19b was demonstrated in the aspect exposed operably, it is not necessarily restricted to the said structure. For example, the lock built-in main body 40 may be configured to abut against the components of the latch mechanisms 17b and 19c at the non-openable position to restrict the latch release and to release the restriction at the openable position. In short, it is only necessary that the doors 16a and 16b as the opening and closing members and the drawer portion 18 can be opened at the unopenable position and can be opened at the openable position.

<2-2. Configuration of lock built-in main body>
The configuration of the lock built-in main body 40 will be described in more detail. FIG. 5 is an explanatory view showing the internal structure of the button-type lock device, and FIG. 6 is a schematic cross-sectional view taken along the line VI-VI in FIG. That is, the button-type locking device 20 includes a plurality of buttons 52, a lock plate 80, a coil spring 81 as a lock plate urging member, a lock plate movement restricting portion 88, and a lock plate movement restricting portion urging member. A coil spring 89 is provided, and these are incorporated in the lock built-in main body 40.

  Each button 52 is provided on the front surface of the lock built-in main body 40 so as to be pushed. In addition, a lock plate 80 is movably disposed inside the lock built-in main body 40, and the movement of the lock built-in main body 40 is restricted or allowed according to the movement of the lock plate 80. In addition, a lock plate movement restricting portion 88 that controls the actual movement of the lock plate 80 is disposed on one main surface side of the lock plate 80, and the pushed button 52 is maintained at the pushed position. A button maintaining plate 60 is provided.

  When a predetermined one or a plurality of buttons 52 among the buttons 52 are pushed in, the button 52 that has been pushed by the button maintenance plate 60 is maintained in the pushed position, and the lock plate 80 is movable. become. In this state, the lock plate 80 is moved by operating the lock plate movement restricting portion 88 to be pushed. Then, in response to the movement of the lock plate 80, the lock built-in main body 40 becomes movable. Thereby, it is comprised so that the lock | rock built-in main-body part 40 can be moved from an unopenable position to an openable position.

  Hereinafter, it demonstrates concretely for every function element.

<2-2a. Interrelationship between Button, Button Maintenance Plate and Lock Plate>
First, the mutual relationship among the plurality of buttons 52, the button maintenance plate 60, and the lock plate 80 will be mainly described.

  7, 8, and 11 to 13 are explanatory diagrams showing operations related to a button that is defined for release, and FIG. 7 shows an interrelationship between one button, a button maintenance plate, and a lock plate in an initial state. 8 shows the state of FIG. 7 as viewed from above on the line VIII-VIII, FIG. 11 shows the state of pushing the button, and FIG. 12 shows the lock plate to the unlocked position. FIG. 13 shows a state where the button maintenance plate is moved to the button release position. 9 and 10 are explanatory views showing the state of rotating the button, and FIG. 10 shows a state viewed from above along the line XX in FIG. 14 and 15 are explanatory diagrams showing operations related to buttons not defined for release, FIG. 14 shows an initial state, and FIG. 15 shows a state where the button is pushed. In these drawings, the illustration of the lock plate movement restricting portion 88 and the like is omitted for convenience of explanation.

  As shown in FIGS. 5 to 15, the lock built-in main body 40 has a casing 41 whose bottom side is open, and a button mounting hole 41 h corresponding to each button 52 is formed on the front surface of the casing 41. Has been. Each button 52 is arranged to be able to be pushed in from the position protruding from the front surface of the lock built-in main body 40 toward the pushing position through the button mounting hole 41h.

  Each button 52 restricts the movement of the lock plate 80 from one locking position to the unlocking position, which will be described later, at one of the protruding position and the pushing position, and the locking plate 80 is unlocked from the locking position at the other position. It is configured to allow movement to the lock position. More specifically, the button 52 includes a button body 53 having a substantially short cylindrical shape and a button hanging portion 54 that protrudes from the back side of the button body 53. The button 52 is supported by the casing 41 so that it can be pushed and rotated. A flange-like protruding portion 53 a that protrudes outward is formed on the peripheral edge of the button main body 53 on the proximal end side. The outer peripheral surface of the hook-shaped protruding portion 53 a is formed as a tapered guide surface 53 g that sequentially expands toward the distal end side of the button main body portion 53. The button suspending portion 54 has a configuration in which a lock plate restricting portion 55 and a button rotation restricting portion 56 are connected in a columnar shape. On the surface substantially orthogonal to the pushing direction of the button 52, the cross-sectional shape of the lock plate restricting portion 55 has a shape obtained by cutting a part of a circle along the string. Similarly, a part of the circle is cut along the string. The cut portion 55a of the lock plate restricting portion 55 and the cut portion 56a of the button rotation restricting portion 56 are in a positional relationship of being rotated half a turn (180 °) about the center axis of the button 52 (see FIG. 8). . The cut portions 55a and 56a include not only a portion cut after the formation but also a concave portion formed in a cut shape when the mold is formed. The position of the cut portion 55a of the lock plate restricting portion 55 defines one or a plurality of combinations of the buttons 52 for releasing the position restriction of the lock plate 80, as will be described later. The button 52 defines whether or not the lock state is to be released according to each rotation posture.

  Further, a button receiving portion 57 is provided on the bottom surface side of the lock built-in main body portion 40 so as to be rotatable to a position facing the button 52 and to be movable along the pushing operation direction of the button 52. The button receiving portion 57 is disposed on the inner surface of the base plate 47 that closes the bottom opening of the casing 41. The button receiving portion 57 has a button rotation recessed portion 57 a corresponding to the outer peripheral shape of the button rotation restricting portion 56. The button rotation restricting portion 56 is movable in the button rotation recessed portion 57a along the pushing direction of the button 52 and is held in a non-rotating state. A spring fixing hole 57b is formed at the bottom of the button rotation recess 57a. A coil spring 58 as a button urging member that urges the button 52 and the button receiving portion 57 away from each other and urges the button 52 toward the protruding position is formed by the spring fixing hole 56h and the main spring fixing hole 57b. The compression interposition is arranged between the two.

  In addition, a push-in portion 57c that protrudes toward the opposite side of the button 52 is formed in the central portion of the button receiving portion 57 on the side opposite to the button 52. A stop pin 57d is formed as a receiving part side stop at a position away from the receiver. Here, the rotation pin 57d is formed in two places which pinch | interpose the said pushing part 57c.

  Further, a base plate 47 provided on the bottom surface of the lock built-in main body 40 is disposed at a position for supporting each button receiving portion 57 from the opposite side of the button 52, and the pushing portion 57 c is attached to the base plate 47. An insertion hole 47c that can be inserted is formed, and an insertion hole 47c that engages with the rotation pin 57d and stops is formed. The button receiving portion 57 is supported in a non-rotating state on the inner surface side of the base plate 47 in a state where the respective pushing portions 57c and the rotation stop pins 57d are fitted into the fitting holes 47c and 47d.

  Further, in this state, when the push-in portion 57c is pushed manually or using a predetermined jig from the back side of the lock built-in main body portion 40 (see FIG. 9), the locking pin 57d and the fitting hole portion 47d. And the engagement is released and released. Thereby, the button receiving part 57 can be rotated around the central axis of the button 52 together with the button 52. For example, the protruding portion of the button 52 can be picked and rotated while the pressing portion 57c is pressed. As a result, the position of the cut portion 55a of the lock plate restricting portion 55 can be disposed at a position half-rotated around the central axis of the button 52 (see FIG. 14).

  The formation positions of the rotation pin 57d and the fitting hole portion 47d are not limited to the above example, and three positions are provided at rotationally symmetric positions around the center axis of the button receiving portion 57 (preferably 180 ° rotationally symmetric positions in this embodiment). It may be provided as described above, and a large number of convex portions may be formed in a gear shape. Moreover, a hole or a concave portion may be formed on the button receiving portion 57 side, and a convex portion may be formed on the base plate 47 side. In short, the button receiving portion 57 and the base plate 47 are engaged with each other to engage and the button receiving portion 57 is locked, and the button receiving portion 57 and the base plate 47 are separated from each other to release the engaged state. Any configuration may be used as long as the receiving portion 57 can rotate.

  Thus, by changing the position of the cut portion 55a of the lock plate restricting portion 55, it is possible to change one or a plurality of combination rules of the button 52 for releasing the position restriction of the lock plate 80. Here, the button 52 (see FIGS. 7 to 13) in which the cut portion 55a of the lock plate restricting portion 55 is oriented toward the lock position of the lock plate 80 is defined for release. Further, a button (see FIGS. 14 and 15) in which the cut portion 55a of the lock plate restricting portion 55 is oriented toward the unlocking position side of the lock plate 80 is defined as non-release. Then, by pressing only the button 52 defined for release, the lock plate 80 described later can be moved toward the unlocked position.

  The button maintenance plate 60 is formed in a plate shape that can be moved within a predetermined range within the casing 41 (see FIG. 5 and FIG. 6), the button pressed state maintenance position (position of FIG. 5), and the button release. It is disposed so as to be freely movable between the positions (the state moved to the right side of FIG. 5, see FIG. 13). The button maintaining plate 60 is urged toward the button pressing state maintaining position by a coil spring 61 as a button maintaining plate urging member that is compressed and interposed between one side of the button maintaining plate 60 and the inner surface of the casing 41. (See FIG. 5). The button maintaining plate 60 may be provided between the lock plate 80 and the lock plate movement restricting portion 88, or may be provided between the lock plate movement restricting portion 88 and the casing 41.

  The button maintaining plate 60 is configured to maintain each button 52 in the pressed position at the button pressed state maintaining position and to release the maintained state of each button 52 at the button release position. More specifically, loose insertion holes 62 are formed at positions corresponding to the buttons 52 in the button maintenance plate 60. Each button 52 is movable through each loose insertion hole 62 regardless of whether the button maintaining plate 60 is in the button pressed state maintaining position or the button releasing position (see FIGS. 11 to 13). ).

  A button maintaining spring piece 64 is provided corresponding to each loose insertion hole 62. The button maintenance spring piece 64 rises from the peripheral edge of each loose insertion hole 62 toward the protruding direction of the button 52 and is inclined from the tip thereof toward the center of the loose insertion hole 62 toward the pushing direction of the button 52. It is constituted by a leaf spring. When the button 52 is pushed while the button keeping plate 60 is in the button pushing state keeping position, the tapered guide surface 53g of the hook-like protrusion 53a of the button 52 comes into contact with the tip of the button keeping spring piece 64. The tip of the lever is elastically deformed to the outer peripheral side of the loose insertion hole 62. When the button 52 is further pushed, the button retaining spring piece 64 is elastically restored to its original shape so that the tip of the button retaining spring piece 64 gets over the hook-shaped protrusion 53a. Then, the tip of the button maintaining spring piece 64 comes into contact with the surface on the protruding direction side of the hook-shaped protruding portion 53a, and the button 52 is maintained in the pushed position (see FIG. 11). Further, in this state, when the button maintenance plate 60 is moved to the button release position, that is, when the button maintenance plate 60 is moved to the right from the state of FIG. The position of the button 52 is released and the maintenance of the button 52 is released (see FIG. 13). The button maintaining spring piece 64 may be configured to be attached to the button maintaining plate 60 or may be configured integrally with the button maintaining plate 60.

  The lock plate 80 is formed in a plate shape that fits within the casing 41 and can be moved within a predetermined range (see FIGS. 5 and 6), and has a locking position (position in FIG. 5) and an unlocking position (in FIG. 5). It is disposed so as to be movable between the position moved to the right from the position (see FIGS. 12, 13 and 16). The lock plate 80 is biased from the locked position toward the unlocked position by a coil spring 81 that is compressed and interposed between the one side portion and the inner surface of the casing 41.

  The urging force by the coil spring 81 is preferably sufficiently smaller than the maximum operating force that can be applied by a general finger or the like, and is preferably set as small as possible within the range in which the lock plate 80 can be moved. More specifically, even when the lock plate restricting portion 55 or the button rotation restricting portion 56 of the button 52 is in sliding contact with the inner peripheral portion of the restricting hole 82, the sliding contact may be caused depending on the feeling of the pressing operation of the button 52. It is preferable that the biasing force is small enough that it is not easily determined whether or not it has occurred. The lock plate 80 is accommodated in the casing 41 without being exposed to the outside. Therefore, the lock plate 80 cannot be moved from the outside by fingers or the like.

  The lock plate 80 restricts the operation of the opening / closing movement lock mechanism 90 at the locked position, thereby maintaining the lock built-in main body 40 in the unopenable position and keeping the locked state, and locking the lock plate 80 at the unlocked position. The built-in main body 40 is operated so that the lock built-in main body 40 can be moved from the unopenable position toward the openable position. The operation in which the lock built-in main body 40 switches between the locked state and the unlocked state in response to the operation of the lock plate 80 will be described in detail later.

  The lock plate 80 is configured to be movable from the locked position toward the unlocked position in accordance with the pressing operation of the buttons 52, and to be able to maintain the buttons 52 in the pressed state at the unlocked position. . More specifically, a restriction hole 82 is formed at a position corresponding to each button 52 in the lock plate 80. Each regulation hole 82 is formed in a size and shape that satisfy the following conditions. That is, with respect to the button 52 defined for release, the peripheral edge of the restriction hole 82 abuts against the button rotation restricting portion 56 in a state where the button 52 is in the protruding position, and the lock plate 80 is moved from the locked position to the unlocked position. Is restricted (see FIG. 7). Further, the lock plate 80 is allowed to move from the locked position to the unlocked position so that the peripheral edge of the restricting hole 82 enters the cut portion 55a of the lock plate restricting portion 55 while the button 52 is in the pushed position. (See FIGS. 11 to 13). On the other hand, with respect to the button 52 defined for non-release, the lock plate 80 is positioned so that the peripheral edge of the restricting hole 82 enters the cut portion 56a of the button rotation restricting portion 56 with the button 52 in the protruding position. It is allowed to move from the locked position to the unlocked position (see FIG. 14). In the state where the button 52 is in the pushed-in position, the peripheral edge portion of the restriction hole 82 abuts against the lock plate restriction portion 55 to restrict the lock plate 80 from moving from the lock position to the unlock position (see FIG. 15). ). Accordingly, the lock plate 80 can be moved from the locked position toward the unlocked position in a state where only the button 52 restricted for release is pressed.

  Further, the lock plate 80 is configured such that, at the unlocked position, the peripheral portion of the restriction hole 82 enters the cut portion 55 a of the lock plate restricting portion 55, and the button rotation restricting portion 56 is placed on the peripheral portion of the restricting hole 82. Abut. Thereby, each button 52 is maintained in the pushed-in state (see FIG. 12). Then, by moving to the locking position, the maintenance state due to the contact is released, and the button 52 can be returned to the protruding position.

<2-2b. Interrelationship between Lock Plate and Lock Plate Movement Restriction Unit>
As described above, the lock plate 80 that can be moved from the locked position toward the unlocked position in accordance with the pressing operation of each button 52 is moved from the locked position to the unlocked position by operating the lock plate movement restricting portion 88. Move towards or vice versa. Here, the lock plate 80 and the lock plate movement restricting portion 88 will be described. FIG. 16 is a schematic cross-sectional view showing a state in which the lock plate moves to the unlock position and the lock plate movement restricting portion moves to the lock plate movement allowable position.

  As shown in FIGS. 5, 6, and 16, the lock plate movement restricting portion 88 is disposed on one main surface side of the lock plate 80, and the lock plate movement restricting position that maintains the lock plate 80 in the locked position. (Refer to FIG. 5 and FIG. 6) and a lock plate movement permitting position that allows the lock plate 80 to move from the lock position to the unlock position.

  More specifically, the lock plate movement restricting portion 88 includes an open button portion 88a as an operation portion, a substrate portion 88b, and a lock plate abutting piece 88c. These may be configured as a single unit or may be configured by separate members. Here, the substrate portion 88b and the lock plate abutting piece 88c are integrally formed, and the open button portion 88a is formed as a separate body.

  The substrate portion 88b is formed in a substantially rectangular plate shape, and is disposed on one main surface side of the lock plate 80 so as to be movable along the surface direction. Further, a hole 88d larger than the restriction hole 82 is formed in the substrate portion 88b so as not to hinder the mutual operation of the restriction hole 82 and the button 52.

  An open button portion 88a is provided at one end of the substrate portion 88b. The open button portion 88 a is disposed so as to be exposed to the outside through a button attachment hole 41 h that is one side opening of the casing 41. Then, the entire lock plate movement restricting portion 88 receives the operation force (pushing operation force) from the lock plate movement restricting position to the lock plate movement permitting position by a finger or the like through the open button portion 88a. It is configured to move from the restriction position toward the lock plate movement allowable position. In addition, the open button part 88a and the one end part of the board | substrate part 88b may be mutually connected, and may be isolate | separated so that contact | abutting is possible.

  Further, a lock plate abutting piece 88c protruding toward the lock plate 80 is provided at the other end of the substrate portion 88b. The lock plate abutting piece 88c is provided so as to be able to abut on one side of the lock plate 80 on the unlocking position side. Then, in a state where the lock plate movement restricting portion 88 is in the lock plate movement restricting position, the lock plate abutting piece 88c comes into contact with one side of the lock plate 80 in the unlocked position, so that the lock plate 80 is locked. To prevent it from moving to the unlocking position. Further, in a state where the lock plate movement restricting portion 88 is in the lock plate movement allowable position, the lock plate abutting piece 88c moves to the unlock position side from the above position, and the lock plate 80 moves from the lock position to the unlock position. It is allowed to do. As the lock plate movement restricting portion 88 moves from the lock plate movement allowance position to the lock plate movement restriction position, the lock plate abutment piece 88c can push the lock plate 80 to move from the unlock position to the lock position. It is configured to be able to.

  In addition, a coil spring 89 that urges the lock plate movement restricting portion 88 from the lock plate movement permission position toward the lock plate movement restriction position is interposed between the lock plate abutting piece 88c and the inner surface of the casing 41 in a compressed manner. Has been. The urging force of the coil spring 89 is larger than the urging force of the coil spring 81 that urges the lock plate 80. Therefore, even when the movement of the lock plate 80 is permitted by the pressing operation of the predetermined button 52, the coil spring 81 The coil spring 89 urges and maintains the lock plate movement restricting portion 88 at the lock plate movement restricting position against the urging force, and urges and maintains the lock plate 80 at the lock position via the lock plate abutting piece 88c. ing.

  When the opening button 88a is pushed against the urging force of the coil spring 89 in a state where the movement of the lock plate 80 is permitted by the pushing operation of the predetermined button 52, the lock plate movement restricting portion 88 is locked. It moves from the plate movement restriction position toward the lock plate movement allowable position. Accordingly, the position restriction by the lock plate abutting piece 88c is released, and the lock plate 80 moves from the lock position to the unlock position by the biasing force of the coil spring 81. In this state, when the pushing operation force on the open button portion 88a is released, the lock plate movement restricting portion 88 returns from the lock plate movement allowable position toward the lock plate movement restriction by the biasing force of the coil spring 89. At this time, since the urging force of the coil spring 89 is larger than the urging force of the coil spring 81 as described above, the lock plate 80 is pushed by the lock plate abutting piece 88c, and the lock plate 80 moves back from the unlocked position toward the locked position. .

<2-2c. Button maintenance plate moving member>
The button maintenance plate moving member 70 will be described. FIG. 17 is a schematic plan view showing the button maintaining plate and the button maintaining plate moving member, and FIG. 18 is an explanatory view showing the operation of the button maintaining plate. In addition, in each said figure, illustration of the lock plate movement control part 88 grade | etc., Is abbreviate | omitted for convenience of explanation. Further, a mechanism portion 98 including these button maintaining plate moving member 70 and an opening / closing movement locking mechanism portion 90 described later is provided in a portion 98 surrounded by a two-dot chain line in FIG.

  The button maintaining plate 60 temporarily maintains the pressed buttons 52 in the pressed state. When the lock built-in main body 40 is moved from the unopenable position to the open-permitted position, the button maintaining plate 60 is moved by the operation of the button maintaining plate moving member 70 so that the button maintaining plate 60 The maintenance state of each button 52 is released, and each button 52 is returned to the protruding position. Here, the button maintenance plate 60 and the button maintenance plate moving member 70 will be described in more detail. In the actual operation state, each button 52 is maintained in the pushed state by both the button maintenance plate 60 and the lock plate 80. Therefore, when both the maintenance states are released, each button 52 is restored to the original state. Return to the protruding position.

  As shown in FIGS. 17 and 18, the button maintaining plate moving member 70 directs the button maintaining plate 60 to the button releasing position as the lock built-in main body 40 is moved from the unopenable position to the openable position. This is a member to be moved. More specifically, the button maintaining plate moving member 70 is a long member attached to the inner surface side of the base plate 47. That is, a rod-shaped support shaft portion 78 is supported on the inner surface side of the base plate 47. One end of the button maintaining plate moving member 70 is swingably supported by one end of the support shaft 78. The button maintaining plate moving member 70 is formed with a slidable convex portion 72 that protrudes in a substantially triangular shape on the side of the elongated main body 71 on the side of the base plate 47, and the button maintaining plate of the main body 71. The plate operating piece 73 that protrudes toward the button maintaining plate 60 is provided on the side portion on the 60 side.

  The slidable contact projection 72 can be projected and retracted to the back side of the lock built-in main body 40 through a hole 47 a formed in the base plate 47. Further, the hole 47a formed in the base plate 47 is arranged at a position overlapping the first operation hole 24b of the plate-like member 24 of the apparatus main body 22 in a state where the lock built-in main body 40 is moved to the unopenable position. Established. Further, in a state where the lock built-in main body 40 is moved to the openable position, the hole 47a is disposed at a position facing the plate-like member 24 at a position removed from the first operation hole 24b.

  The plate operating piece 73 is fitted into an operation receiving hole 60 h formed in the button maintaining plate 60 through a notch 80 h formed in the lock plate 80.

  In the state where the lock built-in main body 40 is in the unopenable position, the sliding contact projection 72 is in a state of protruding into the hole 47 a formed in the base plate 47 and the first operation hole 24 b of the plate-like member 24. The plate operating piece 73 is fitted in the operation receiving hole 60h of the button maintaining plate 60 in the button pressed state maintaining position (see the solid line in FIG. 18).

  When the lock built-in main body 40 is moved to the openable position from this state, the sliding contact projection 72 is detached from the first operation hole 24b and slidably contacts the main surface of the plate-like member 24, and the button maintaining plate moving member 70 is The posture is changed around the support shaft portion 78 (see the two-dot chain line in FIG. 18). As a result, the plate operating piece 73 comes into contact with the peripheral edge portion of the operation receiving hole 60h to move the button maintaining plate 60 toward the button release position.

  When the lock built-in main body 40 is moved to the unopenable position, the button maintaining plate 60 is returned to the button pressed state maintaining position by the biasing force of the coil spring 61, and the button maintaining plate moving member 70 is also moved accordingly. Return to the original posture.

  In addition, a reset button 49 is disposed adjacent to the open button 88a in a side position opposite to the coil spring 61 in the lock built-in main body 40 (see FIG. 5). )). The interior of the reset button 49 is in contact with an extending piece 61 </ b> P extending from the button maintaining plate 60 toward the side. Then, by pushing the reset button 49, the button maintaining plate 60 can be moved from the button pressing state maintaining position to the button releasing position against the biasing force of the coil spring 61.

<2-2d. Open / close movement lock mechanism>
The opening / closing movement lock mechanism 90 will be described. 19 to 22 are diagrams showing the operation of the opening / closing movement locking mechanism, FIG. 19 shows the operation of the opening / closing movement locking mechanism changing the posture from the locked posture to the non-locking posture, and FIG. FIG. 21 and FIG. 22 show the relationship between the opening / closing movement locking mechanism part whose posture has been changed to the non-locking position and the member that restricts the movement, as viewed from the front end side of the mechanism part.

  As shown in FIGS. 19 to 22, the opening / closing movement locking mechanism 90 can change its posture between a locked posture and an unlocked posture, and the lock plate 80 is in a state after the posture is changed to the unlocked posture. It is allowed to move from the unlocked position toward the locked position. Here, the locked posture is a posture in which the lock plate 80 is engaged with the apparatus main body 22 while the lock plate 80 is in the locked position and the movement of the lock built-in main body 40 is prohibited. In this state, the lock main body 40 is allowed to move by releasing the engagement with the apparatus main body 22 in the locked position.

  More specifically, the opening / closing movement lock mechanism 90 is a long member attached to the inner surface side of the base plate 47. In other words, the other end of the opening / closing movement locking mechanism 90 is locked to the other end of the support shaft 78 supported on the inner surface side of the base plate 47 (see the solid line in FIG. 19) and unlocked (see FIG. 19). (Refer to the two-dot chain line). The other end portion of the support shaft portion 78 is inserted in a state where play is provided in the shaft insertion hole of the opening / closing movement lock mechanism portion 90, so that the opening / closing movement lock mechanism portion 90 is not attached to the support shaft portion 78. And can be tilted within a predetermined range. In addition, a coil spring 79 is mounted on the support shaft portion 78 as a lock mechanism portion urging member that urges the opening / closing movement lock mechanism portion 90 to be in a substantially orthogonal posture with respect to the support shaft portion 78. Thereby, in the normal state, the opening / closing movement lock mechanism 90 is in a posture (first posture, see FIG. 17) substantially orthogonal to the support shaft portion 78, and by applying a force against the coil spring 79. The opening / closing movement lock mechanism 90 is inclined with respect to the support shaft 78 (second attitude, see FIGS. 21 and 22).

  The opening / closing movement lock mechanism 90 includes a long lock main body 91, a lock sliding protrusion 92 protruding from a side of the lock main body 91 on the base plate 47 side, and a lock of the lock main body 91. And a lock abutting portion 93 protruding from the side portion on the plate 80 side.

  The locking sliding contact projection 92 is formed in a fan-shaped shape with a central angle of approximately 90 °, and can protrude and retract to the back side of the lock built-in main body 40 through a hole 47 b formed in the base plate 47. Yes. The hole 47b formed in the base plate 47 is arranged at a position overlapping the second operation hole 24c of the plate-like member 24 of the apparatus main body 22 in a state where the lock built-in main body 40 is moved to the unopenable position. Established. Further, when the lock built-in main body 40 is moved to the openable position, the hole 47b is disposed at a position facing the plate member 24 at a position deviated from the second operation hole 24c.

  Further, the lock abutting portion 93 is formed to have a projecting dimension so as to be able to face the back surface of the lock plate 80 in a state where the opening / closing movement locking mechanism portion 90 is in the locked posture.

  Further, when the opening / closing movement lock mechanism 90 changes the posture from the locked posture to the non-locked posture, the posture of the base plate 47 is changed from the substantially orthogonal posture (first posture) to the inclined posture (second posture). A spring-shaped guide plate portion 48 is provided as a guide portion to be operated. The spring-like guide plate portion 48 is a belt-like member having spring properties, and has an inclined piece 48 a that is inclined in a direction away from the base plate 47. The inclined piece 48a is disposed at a position intersecting with the distal end portion of the opening / closing movement locking mechanism 90 in the first position in an attitude substantially orthogonal to the longitudinal direction of the opening / closing movement locking mechanism section 90. Further, the inclined piece 48a is sequentially moved away from the opening / closing movement locking mechanism 90 from the tip of the opening / closing movement locking mechanism 90 in the first position toward the tip of the opening / closing movement locking mechanism 90 in the second position. (See FIG. 20). The distal end of the opening / closing movement lock mechanism 90 is disposed between the inclined piece 48 a and the base plate 47. When the opening / closing movement locking mechanism 90 changes its position from the locked position to the unlocking position, the tip of the opening / closing movement locking mechanism 90 is guided to the lower surface of the inclined piece 48a, and the opening / closing movement locking mechanism 90 is The posture is changed from the first posture to the second posture. Further, when the opening / closing movement lock mechanism 90 is changed from the locked position to the non-locked position, the guide is released from the inclined piece 48 a and returned to the first position by the biasing force of the coil spring 79.

  The lock plate 80 is formed with a posture change allowance hole 86. The posture change allowance hole portion 86 is a hole portion in which a hole portion 86a and a long hole portion 86b are connected in a substantially L shape.

  The hole 86a is formed at a position facing the lock contact portion 93 of the opening / closing movement lock mechanism 90 in the first posture in a state where the lock plate 80 is in the locking position.

  The long hole portion 86b is formed at a position facing the lock contact portion 93 of the opening / closing movement lock mechanism portion 90 in the second posture in a state where the lock plate 80 is in the unlocking position and the locking position. Adjacent to the hole 86a, a long long hole is formed along the moving direction of the lock plate 80.

  When the lock plate 80 is in the locked position with the opening / closing movement lock mechanism 90 in the first posture, the lock contact portion 93 contacts the lock plate 80 at the side position of the hole 86a and is not locked. Changing the posture to the posture is restricted (see FIG. 17 and the solid line in FIG. 19). Further, when the lock plate 80 is in the unlocked position in the first posture, the lock contact portion 93 enters the hole portion 86a so as not to contact the lock plate 80 (see FIG. 17). As a result, the opening / closing movement lock mechanism 90 can be changed to the unlocked posture (see the two-dot chain line in FIG. 19). When the opening / closing movement lock mechanism 90 changes its position from the locked position to the unlocked position, the spring-shaped guide plate 48 changes the position of the opening / closing movement lock mechanism 90 from the first position to the second position. The contact portion 93 enters the elongated hole portion 86b from the hole portion 86a (see FIG. 21). When the open / close movement lock mechanism 90 is in the second posture, the lock contact portion 93 enters the elongated hole portion 86b and does not contact the lock plate 80 in either the locked position or the unlocked position. become. As a result, the lock plate 80 can move back from the unlocked position to the locked position while keeping the opening / closing movement locking mechanism 90 in the unlocked posture. Then, when the lock plate 80 moves back to the locking position, the pressing state of each button 52 by the lock plate 80 is released, and each button 52 can return to the protruding position.

<2-2e. Operation of the button-type lock device>
A series of operations of the button type lock device 20 will be described.

  First, in the initial state, all the buttons 52 are in the protruding position, the button maintaining plate 60 is in the button pressing state maintaining position, and the lock plate 80 is in the locking position (see FIGS. 5 to 8 and 14). Further, the button maintaining plate moving member 70 is in a position for maintaining the button maintaining plate 60 in the button pressed state maintaining position (see a solid line in FIG. 18). Further, the opening / closing movement lock mechanism 90 is in the locked position in the first position, and the change in position to the unlocked position is restricted by the lock plate 80 in the locking position (see FIG. 17 and the solid line in FIG. 19).

  In this state, as shown in FIG. 11, only the button 52 defined for release is pushed. Then, only the button 52 that has been pushed in is maintained in the pressed state by the button maintaining plate 60.

  If the wrong button 52 has been pushed, when the reset button 49 is pushed and the button maintenance plate 60 is moved to the button release position, all the buttons 52 return to the protruding position, and the initial state Reset to.

  After pressing only the button 52 defined for release, when the open button portion 88a of the lock plate movement restricting portion 88 is pushed against the urging force of the coil spring 89, the lock plate contact of the lock plate movement restricting portion 88 is pressed. The position restriction by the contact piece 88c is released, and the lock plate 80 is moved from the locked position to the unlocked position by the biasing force of the coil spring 81 (see FIGS. 12 and 16). At this time, if the button 52 defined for release is not pressed, the button rotation restricting portion 56 of the button 52 abuts on the peripheral portion of the restricting hole 82 of the lock plate 80, so that the lock plate 80 Cannot be moved to the movement allowable position (see FIG. 9). In addition, if the button 52 defined for non-release is pressed, the lock plate restricting portion 55 of the button 52 comes into contact with the peripheral edge portion of the restricting hole 82 of the lock plate 80. It cannot be moved to the movement allowable position (see FIG. 15). Therefore, the lock plate 80 can be moved from the locked position to the unlocked position in a state where only the button 52 defined for release is pushed.

  Thus, when the lock plate 80 moves to the unlocking position, the posture change of the open / close movement lock mechanism 90 from the locked posture to the unlocked posture is allowed. Thereby, the lock | rock built-in main-body part 40 can be moved toward the said openable position from an unopenable position.

  Then, the button maintaining plate moving member 70 moves the button maintaining plate 60 in accordance with the movement of the lock built-in main body 40 from the unopenable position toward the possible position while the lock plate movement restricting portion 88 is pushed. It is moved toward the button release position (see the two-dot chain line in FIGS. 13 and 18). Thereby, the maintenance of the pushed state of the button 52 by the button maintenance plate 60 is released. In the state where the button maintenance plate 60 is just moved to the button release position, the button 52 is maintained in the pushed state by the lock plate 80, so the button 52 does not return to the protruding position.

  Further, as the lock built-in main body 40 is moved from the unopenable position toward the possible position while the lock plate movement restricting portion 88 is pushed in, the open / close movement lock mechanism 90 is unlocked from the locked position. When the posture is changed to the posture, the opening / closing movement lock mechanism 90 changes the posture from the first posture to the second posture, and the lock contact portion 93 enters the elongated hole 86b. As a result, the lock plate 80 can be returned to the locking position while the opening / closing movement lock mechanism 90 is maintained in the unlocked posture.

  When the lock plate movement restricting portion 88 is released while the lock built-in main body portion 40 reaches the openable position, the lock plate movement restricting portion 88 returns to the lock plate movement restricting position by the biasing force of the coil spring 89. At the same time, the lock plate 80 is pushed by the lock plate abutting piece 88 c and the lock plate 80 returns to the locked position against the urging force of the coil spring 81. Then, the maintenance of the pushed state of the button 52 by the lock plate 80 is released. As a result, each button 52 returns to the protruding position by the biasing force of the coil spring 58.

  In this state, the handle portion 17a or the operation lever 19b is exposed through the window portion 25. Therefore, the user operates the handle portion 17a or the operation lever 19b to open the doors 16a, 16b or the drawer portion 18 for use. can do.

  Here, when the lock built-in main body portion 40 is moved to the openable position as described above, the button returns to the protruding position, so that the lock built-in main body portion 40 is in the openable position and the unlocked state is established. It is possible to prevent others from easily knowing the buttons 52 for doing so, and it is possible to prevent forgetting to reset each button 52.

  Thereafter, when the use by the operator is finished and the lock built-in main body 40 is moved to the unopenable position, the force that the button maintaining plate moving member 70 moves the button maintaining plate 60 toward the button releasing position is released. The Then, the button maintaining plate 60 moves back to the button pressed state maintaining position by the urging force of the coil spring 61 and returns to the initial state.

  According to the button type field device configured as described above, the lock plate 80 can be moved from the locked position to the unlocked position by pushing one or more predetermined ones of the plurality of buttons 52 into the pushed position. . And when the lock plate 80 moves to the unlocking position, the lock built-in main body 40 can be moved to the openable position to open the opening / closing member. On the other hand, in the state where the lock plate 80 is in the locking position, the lock built-in main body 40 can be maintained in the unopenable position, and the opening operation of the door 16a as the opening / closing member and the drawer 18 can be maintained in an impossible state.

  Further, when the lock plate 80 moves to the unlocking position, the lock plate 80 moves due to the urging force of the coil spring 81. For this reason, the force applied to the lock plate 80 can be reduced as compared with a configuration in which an operating force such as a finger is directly applied to the lock plate to move the lock plate. Therefore, even if the button 52 is pushed in with the lock plate movement restricting portion 88 pushed, the frictional force between the button 52 and the lock plate 80 can be reduced. Accordingly, when the button 52 restricts the movement of the lock plate 80 at the protruding position (see FIG. 7), and when the button 52 restricts the movement of the lock plate 80 at the pushed position (see FIG. 15). Thus, it is possible to prevent a difference as much as possible when the button 52 is pressed.

  Further, the lock plate 80 is unlocked from the locked position by the biasing force of the coil spring 81 by pushing the lock plate movement restricting portion 88 from the lock plate movement restricting position to the lock plate movement permitting position against the biasing force of the coil spring 89. Move to position. Further, by releasing the operation force to the lock plate movement restricting portion 88, the lock plate movement restricting portion 88 is returned from the lock plate movement restricting position to the lock plate movement permitting position by the biasing force of the coil spring 89, and The lock plate abutment piece 88c can move the lock plate 80 from the unlocked position to the locked position. Therefore, by applying an operating force to the lock plate movement restricting portion 88, the lock plate 80 can be moved to the unlocked position, and by releasing the operating force, the lock plate 80 can be returned to the locked position. The lock plate 80 can be easily moved between the locked position and the unlocked position, and the operability is excellent.

{Modifications}
In the above embodiment, the lock built-in main body 40 is maintained in the unopenable position by the lock plate 80 being positioned in the locked position, and the lock built-in main body 40 is moved by the lock plate 80 being moved to the unlocked position. Has been described with reference to an example in which it can be moved to an openable position, but is not necessarily limited to such an example.

  In short, when the lock plate 80 is located at the locked position, some lock mechanism for locking the door or the like is kept in a locked state, and when the lock plate 80 moves to the unlocked position, such a lock mechanism is unlocked. Any configuration that switches to the locked state may be used.

It is a perspective view which shows the whole structure of the storage apparatus with a lock | rock. It is a disassembled perspective view which shows a button type locking device. It is a schematic perspective view which shows the button type locking device in the state which the lock | rock built-in main-body part moved to the open position. It is a schematic perspective view which shows the button type locking device in the state which the lock | rock built-in main-body part moved to the unopenable position. It is explanatory drawing which shows the internal principal part structure of a button type locking device. FIG. 6 is a schematic sectional view taken along line VI-VI in FIG. 5. It is explanatory drawing which shows the mutual relationship of one button, a button maintenance plate, and a lock plate in an initial state. It is explanatory drawing which shows the state of FIG. 7 from upper direction. It is explanatory drawing which shows a mode that a button is rotated. It is explanatory drawing which shows a mode that a button is rotated. It is explanatory drawing which shows the state which pushed the button. It is explanatory drawing which shows the state which moved the lock plate to the unlocking position. It is explanatory drawing which shows the state which moved the button maintenance plate to the button release position. It is explanatory drawing which shows an initial state regarding the button which is not prescribed | regulated for cancellation | release. It is explanatory drawing which shows the state which pushed in the button which is not prescribed | regulated for cancellation | release. It is a schematic sectional drawing which shows the state which the lock plate moved to the lock plate movement permissible position while the lock plate moved to the unlocking position. It is a schematic plan view which shows a button maintenance plate and a button maintenance plate moving member. It is explanatory drawing which shows operation | movement of a button maintenance plate. It is explanatory drawing which shows the operation | movement which an opening / closing movement locking mechanism part changes attitude | position from a locked attitude | position to a non-locking attitude | position. It is explanatory drawing which shows operation | movement same as the state seen from the front end side of the opening / closing movement locking mechanism part. It is explanatory drawing which shows the relationship between the opening / closing movement locking mechanism part which changed the attitude | position to the non-locking attitude | position, and the member which controls the movement. It is explanatory drawing which shows the relationship between the opening / closing movement locking mechanism part which changed the attitude | position to the non-locking attitude | position, and the member which controls the movement.

Explanation of symbols

16a Door 18 Drawer 20 Button-type locking device 22 Device main body 40 Lock built-in main body 52 Button 80 Lock plate 81 Coil spring 82 Restriction hole 88 Lock plate movement restriction 88a Open button 88b Substrate 88c Lock plate contact piece 89 Coil spring

Claims (3)

A lock built-in main body,
A lock plate disposed on the lock built-in main body so as to be movable between a locking position and an unlocking position;
The lock built-in main body portion is disposed so as to be able to be pushed from a protruding position toward a pushing position, and the lock plate moves from the locking position to the unlocking position at one of the protruding position and the pushing position, respectively. A plurality of buttons that allow the lock plate to move from the locked position to the unlocked position at the other position;
A lock plate biasing member that biases the lock plate from the locking position toward the unlocking position;
Lock plate movement movable between a lock plate movement restricting position for maintaining the lock plate in the locking position and a lock plate movement allowing position for allowing the lock plate to move from the locking position to the unlocking position. The regulatory department,
A button-type locking device. A button-type locking device attached to an opening / closing member that can be opened and closed with respect to the storage main body,
An apparatus body that can be attached to the opening and closing member;
A lock built-in main body that is movable between an unopenable position that disables the opening operation of the opening and closing member and an openable position that enables the opening operation of the opening and closing member;
The lock built-in main body can be moved between a locked position that maintains the lock built-in main body in the unopenable position and an unlocked position that allows the lock built-in main body to move to the openable position. A lock plate disposed in
The lock built-in main body portion is disposed so as to be able to be pushed from a protruding position toward a pushing position, and the lock plate moves from the locking position to the unlocking position at one of the protruding position and the pushing position, respectively. A plurality of buttons that allow the lock plate to move from the locked position to the unlocked position at the other position;
A lock plate biasing member that biases the lock plate from the locking position toward the unlocking position;
Lock plate movement movable between a lock plate movement restricting position for maintaining the lock plate in the locking position and a lock plate movement allowing position for allowing the lock plate to move from the locking position to the unlocking position. The regulatory department,
A button-type locking device. The button-type locking device according to claim 1 or 2,
A lock plate movement restricting portion urging member that urges the lock plate movement restricting portion from the lock plate movement permitting position toward the lock plate movement restricting position with an urging force larger than that of the lock plate urging member; ,
The lock plate movement restricting portion is
An operation unit that receives an operation force from the lock plate movement restriction position toward the lock plate movement permission position, restricts movement of the lock plate at the lock plate movement restriction position, and moves the lock plate from the lock plate movement restriction position. A button-type locking device comprising: a lock plate abutting piece capable of abutting on the lock plate so as to move the lock plate from the unlocked position to the locked position in accordance with the movement to the movement restricting position.

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