JP2018145708A - Locking device and storage - Google Patents

Abstract

A lock device that can be reduced in size and improved in mounting compatibility with a storage, and a storage provided with the lock device are provided. A latch configured to be rotatable about an axis O2 between a locking position locked to a box body 3 and a locking release position where the locking with the box body 3 is released, A regulating unit including a cam member 36 that rotates about an axis O3 and a regulating unit 34 that is arranged alongside the latch 32 along the axis O3 and has a cam follower 82a that engages with the cam surface 92. Reference numeral 34 denotes a restricting position that restricts the rotation of the latch 32 to the unlocking position by abutting the latch 32 as the cam member 36 rotates. The restricting unit 34 is formed with an escape portion 95 that avoids contact with the cam member 36 at a portion other than the cam follower portion 82a. [Selection] Figure 13

Description

  The present invention relates to a locking device and a storage.

  A storage (for example, a mailbox or a locker) includes a box having an opening, an opening / closing door that closes the opening so as to be openable / closable, and a locking device that is provided on the opening / closing door and switches between locking and unlocking of the opening / closing door. And have.

  In recent years, as the above-described locking device, a device that locks and unlocks by driving an actuator (so-called electronic lock) may be used. This type of locking device can be switched between locking and unlocking by driving an actuator by wireless communication with, for example, an IC card or a smartphone.

  The lock device described in Patent Document 1 below mainly includes a latch and a lock plate. The latch is configured to be rotatable between a locking position locked to the box and a locking release position where the locking with the box is released. The lock plate moves to a restricting position that restricts the rotation of the latch to the unlocking position and an allowable position that allows the latch to rotate to the unlocking position. In the configuration described in the following Patent Document 1, the lock plate is configured to move in the direction of the rotation axis of the latch by converting the linear drive of the actuator into a rotation operation by the cam. And in the locking device described in the following Patent Document 1, when the lock plate is in the restricting position, the latch is maintained in the locking position, so that the locking state (locked state) between the latch and the box is maintained. Is done. On the other hand, when the lock plate is in the allowable position, the open / close door is unlocked by shifting the latch to the unlocking position in accordance with the opening operation of the open / close door.

JP2015-143460A

Here, in the locking device, it is desired to improve mounting compatibility when mounting to various opening / closing doors. Specifically, the lock device is assembled into the opening / closing door by being fitted into an attachment hole provided in the opening / closing door. For this reason, by reducing the size of the lock device in the surface direction of the door, the size of the mounting hole that can be attached increases, and the lock device can be assembled to various doors.
However, the above-described conventional locking device still has room for improvement in terms of downsizing the opening / closing door in the surface direction, and can only be assembled to an opening / closing door having a relatively large mounting hole.

  The present invention has been made in view of the above circumstances, and provides a lock device that can be reduced in size and improved in mounting compatibility with a storage, and a storage provided with the lock device. Objective.

  In order to solve the above-described problem, a locking device according to an aspect of the present invention is provided in one member of a box having an opening and an opening / closing door provided in the box so that the opening can be opened and closed. A locking device that is locked to the other member of the box and the opening / closing door at a closed position of the opening / closing door, the locking position being locked to the other member, and the other A latch configured to be rotatable about a first axis between the unlocking positions where the locking with the member is released, a cam member rotating about the second axis and having a cam surface; A regulation unit having a cam follower portion that is arranged along two axes along with the latch and that engages with the cam surface, and the regulation unit is configured to rotate with the cam member. The latch release position of the latch in contact with A restriction position for restricting the rotation of the latch, and an allowance position for allowing the latch to turn to the unlocking position by retreating from the turning locus of the latch. An escape portion that avoids contact with the cam member is formed in a portion other than the node portion.

According to this aspect, when the opening / closing door is moved from the open position to the closed position, when the restriction unit is in the restriction position, the rotation of the latch to the lock release position is restricted. Thereby, even if the open / close door is operated in the opening direction with a predetermined opening operation force, the latch does not rotate to the restriction release position. Therefore, the open / close door is held in the closed position.
On the other hand, when the restricting unit is in the allowable position, the latch is allowed to rotate to the unlocking position, so that the latch moves to the unlocking position as the opening / closing door moves in the opening direction. As a result, the open / close door is in the open position.

  Here, in this aspect, a relief portion is formed in a portion other than the cam follower portion in the restriction unit. Therefore, it is possible to reduce the distance between the cam member and the restriction unit in a front view as viewed from the second axis direction, while preventing contact between the cam member and the restriction unit accompanying rotation of the cam member. As a result, further downsizing of the locking device in front view can be achieved. And the attachment location (for example, attachment hole) of the locking device in one member can be made small by aiming at size reduction by the front view of a locking device. Therefore, the mounting compatibility of the locking device can be improved.

In the above aspect, the restriction unit includes a lever member in which the relief portion is formed, and a first roller rotatably supported by the lever member, and the first roller is the restriction member of the restriction unit. In contact with the latch in position.
According to this aspect, at the time of transition between the restriction position and the allowable position, the first roller rotates due to the frictional force between the first roller and the latch. Thereby, the frictional resistance between the restriction unit and the latch can be reduced, and the transition between the restriction position and the allowable position can be performed smoothly.

In the above aspect, at the restriction position of the restriction unit, a contact portion that sandwiches the restriction unit with the latch is disposed on the side opposite to the latch with respect to the restriction unit. Includes a second roller rotatably supported by the lever member, and the second roller is in contact with the contact portion at the restriction position of the restriction unit.
According to this aspect, at the time of transition between the restriction position and the allowable position, the second roller rotates due to the frictional force with the contact portion. Thereby, the frictional resistance between the restriction unit and the contact portion can be reduced, and the transition between the restriction position and the allowable position can be performed smoothly.

In the above aspect, the rotating shaft of the first roller and the rotating shaft of the second roller extend in parallel to each other, and the outer peripheral surface of the first roller and the outer peripheral surface of the second roller are They are in contact with each other at the restriction position.
According to this aspect, the restricting unit moves between the restricting position and the allowable position while the rollers rotate in the opposite directions due to the frictional force acting between the rollers. Thereby, the frictional resistance between the restriction unit and the latch and the contact portion can be further reduced, and the transition between the restriction position and the allowable position can be performed smoothly.

In the above aspect, at the restriction position of the restriction unit, a contact portion that sandwiches the restriction unit with the latch is disposed on the opposite side of the latch with respect to the restriction unit. The node portion and the cam surface are disposed between a contact portion between the restriction unit and the latch at the restriction position and a contact portion between the restriction unit and the contact portion.
According to this aspect, the cam follower and the cam member are between the contact portion between the restriction unit and the latch at the restriction position and the contact portion between the restriction unit and the contact portion (within the width of the restriction unit). Has been placed. Thereby, compared with the case where the cam follower and the cam member are engaged at a position deviated from the width of the restriction unit, it is possible to reduce the size of the lock device in the direction along the second axis.
In addition, the distance between the engagement portion (power point) between the cam follower portion and the cam member and the contact portion (action point) between the restriction unit, the latch, and the contact portion can be shortened. Therefore, force can be efficiently transmitted from the cam member to the restriction unit, and twisting of the restriction unit can be suppressed.

In the above aspect, the restriction unit is configured to be rotatable around a third axis parallel to the second axis.
According to this aspect, since the restriction unit is configured to be rotatable, the movement range of the restriction unit can be reduced as compared with, for example, a configuration in which the restriction unit slides. Thereby, the further miniaturization of the locking device can be achieved.

The said aspect WHEREIN: While being connected with the said cam member, the drive mechanism arrange | positioned along with the said cam member along the said 2nd axis line may be provided.
According to this aspect, since the cam member and the drive mechanism are arranged along the second axis, compared to the conventional configuration in which the cam member and the drive mechanism are arranged in a direction perpendicular to the arrangement direction of the latch and the regulation unit. It is possible to reduce the outer shape of the locking device in a front view viewed from the second axis direction.

The storage according to this aspect is provided in one member of the box having an opening, the opening / closing door provided in the box so that the opening can be opened and closed, and the box and the opening / closing door. The locking device according to the aspect described above, which is locked to the other member of the box and the opening / closing door at the closed position of the opening / closing door.
According to this aspect, as described above, since the locking device having excellent mounting compatibility is provided, the degree of freedom in designing the mounting hole can be improved.

  According to one embodiment of the present invention, downsizing can be achieved and mounting compatibility with a storage can be improved.

It is a perspective view which shows the closed state of the door in the storage which concerns on embodiment. In the storage which concerns on embodiment, it is a disassembled perspective view which shows the open state of an opening-and-closing door. It is the perspective view which looked at the locking device concerning a 1st embodiment from the front. It is a disassembled perspective view of the locking device concerning a 1st embodiment. It is the perspective view which looked at the locking mechanism from the front. It is the perspective view which looked at the locking mechanism from back. It is a top view of the locking mechanism which shows the initial state of the locking device concerning a 1st embodiment. FIG. 9 is an operation explanatory diagram for explaining a sliding operation of the latch, and is a plan view corresponding to FIG. 7. FIG. 9 is an operation explanatory diagram for explaining a rotation operation of the latch, and is a plan view corresponding to FIG. 7. It is the perspective view which looked at the control unit from the front. It is the perspective view which looked at the control unit from back. It is the side view which looked at the locking mechanism from the left side. It is the fragmentary sectional view which looked at the lock mechanism which shows the state which has a control unit in a permission position from the front. It is the fragmentary sectional view which looked at the lock mechanism which shows the state which has a control unit in a control position from the front. It is operation | movement explanatory drawing of a control unit, Comprising: It is a front view of the lock mechanism corresponding to FIG. It is a front view of the storage which concerns on the other structure of embodiment. In the lock device concerning a 2nd embodiment, it is a front view of a lock mechanism in the state where a regulation unit exists in a regulation position. In the lock device concerning a 2nd embodiment, it is a front view of a lock mechanism in the state where a regulation unit exists in a permissible position.

Hereinafter, embodiments of a locking device and a storage according to the present invention will be described with reference to the drawings.
(First embodiment)
[Storehouse]
FIG. 1 is a perspective view of the storage 1 showing the closed state of the door 4. FIG. 2 is an exploded perspective view of the storage 1 showing the open / close door 4 in an open state.
As shown in FIGS. 1 and 2, the storage 1 according to the embodiment includes a box (the other member) 3, an opening / closing door (one member) 4 attached to the box 3, and an opening / closing door 4. And an attached locking device 8. In the following description, for convenience, the direction toward the opening / closing door 4 with respect to the box 3 will be referred to as the front (arrow FR), and the direction toward the box 3 with respect to the opening / closing door 4 will be described as the rear. In addition, the directions orthogonal to the front-rear direction are defined as an up-down direction (arrow UP is an upper side) and a left-right direction (arrow LH is a left side), respectively. However, the installation direction of the storage 1 can be changed as appropriate.

  The box 3 is formed in a rectangular parallelepiped shape having an opening 2 that opens forward. The box 3 accommodates articles through the opening 2 at the open position of the door 4. Of the opening edge of the box 3, a latch engagement portion 6 to which the lock device 8 is engaged is disposed on the first side portion (right side portion). The shape, size, etc. of the box 3 can be changed as appropriate.

  The opening / closing door 4 is attached to a second side (left side) facing the first side of the opening edge of the box 3 via a hinge (not shown). That is, the open / close door 4 opens and closes the opening 2 of the box 3 by rotating in the front-rear direction starting from the hinge. A mounting hole 5 penetrating the opening / closing door 4 is formed in a portion (right end portion) located near the free end of the opening / closing door 4.

<Locking device>
The lock device 8 is assembled to the open / close door 4 in a state of passing through the open / close door 4 through the mounting hole 5 of the open / close door 4. The locking device 8 regulates the opening operation of the open / close door 4 by engaging with the latch engaging portion 6 described above (locked state). On the other hand, the locking device 8 is allowed to open the opening / closing door 4 by being disengaged from the latch engaging portion 6 (unlocked state). In addition, although this embodiment demonstrates the structure by which the locking device 8 was attached to the opening / closing door 4, the structure by which the locking device 8 was attached to the box 3 may be sufficient.

FIG. 3 is a perspective view of the locking device 8. FIG. 4 is an exploded perspective view of the locking device 8.
As shown in FIGS. 3 and 4, the lock device 8 includes a case 10, a control unit (see FIG. 4) 13, and a lock mechanism 14 (see FIG. 4).

The case 10 includes a bottomed cylindrical case main body 11 that opens toward the front, and a lid 12 that is fitted into the opening of the case main body 11.
A male screw portion 21 is formed on the peripheral wall portion 11 a of the case body 11. The locking device 8 is attached to the opening / closing door 4 by being fastened to the male screw portion 21 with a nut (not shown) provided behind the opening / closing door 4 in a state of being inserted through the attachment hole 5 from the front. . However, the method of attaching the lock device 8 to the open / close door 4 can be changed as appropriate.

  As shown in FIG. 3, in the peripheral wall portion 11 a of the case main body 11, an insertion hole 23 that penetrates the peripheral wall portion 11 a in the left-right direction is formed in a portion located behind the male screw portion 21. As shown in FIG. 4, in the peripheral wall portion 11 a of the case body 11, a passage hole 24 penetrating the peripheral wall portion 11 a is formed in a portion facing the insertion hole 23 in the left-right direction. In the present embodiment, the case main body 11 is configured by combining a pair of half cylinders in the vertical direction. However, the case main body 11 may be integrally formed in a cylindrical shape. Moreover, although this embodiment demonstrates the case where the case main body 11 is formed in the cylindrical shape, you may form in the rectangular tube shape etc.

  The lid 12 closes the opening of the case body 11 from the front. The lock device 8 is assembled to the open / close door 4 with the front surface of the lid 12 exposed to the front surface of the open / close door 4 (see FIG. 1). The lid 12 is provided with a communication unit 28. The communication unit 28 includes, for example, an antenna coil. That is, the lock device 8 of this embodiment can be unlocked by wireless communication with a communication medium (such as an IC card or a smartphone) owned by the user of the storage 1.

  As shown in FIG. 4, the control unit 13 is attached to the peripheral wall portion 11 a of the case body 11. The control unit 13 is configured by mounting various electronic components on a control board. The control unit 13 is electrically connected to the communication unit 28 and the lock mechanism 14 described above, and controls the lock device 8 in an integrated manner. Note that power is supplied to the control unit 13 through an external power source. However, a power source may be mounted in the case 10.

<Lock mechanism>
As shown in FIG. 4, the lock mechanism 14 is housed in the case 10. The lock mechanism 14 according to the present embodiment includes a holder 31, a latch 32, a first biasing member 33, a regulation unit 34, a second biasing member 35, a cam member 36, and an actuator (drive mechanism) 37. , Mainly.
The holder 31 is bent and formed in an L shape in a side view as viewed from the left-right direction. Specifically, the holder 31 mainly includes a base portion 41 that extends in the front-rear direction and a bent portion 42 that is bent downward from the front end portion of the base portion 41. The holder 31 is fixed to the peripheral wall portion 11 a and the like in the case body 11.

FIG. 5 is a perspective view of the lock mechanism 14 as viewed from the front. FIG. 6 is a perspective view of the lock mechanism 14 as viewed from the rear.
As shown in FIGS. 4 to 6, the base 41 has a rear portion formed wider than the front portion. A first spring mounting portion 43 that is bent upward from the base portion 41 is formed on the left side of the front end of the base portion 41. A first spring locking portion 44 (see FIG. 6) is formed on the right side portion of the front end of the base portion 41 (a position facing the spring mounting portion 43 in the left-right direction). The first spring locking portion 44 is formed such that the right side portion of the front end of the base portion 41 is recessed. A latch stopper 45 bent downward from the base 41 is formed at an intermediate portion of the base 41 in the front-rear direction.

A latch mounting groove 46 is formed in a portion of the base 41 located on the left side with respect to the latch stopper 45. The latch mounting groove 46 extends in the left-right direction. The latch mounting groove 46 opens at the left end edge of the base portion 41.
A latch guide hole 47 is formed in a rear end portion of the base portion 41 (a portion located behind the latch mounting groove 46. The latch guide hole 47 penetrates the base portion 41 in the vertical direction. In this example, the latch guide hole 47 is formed in a rectangular shape in a plan view as viewed from above and below.

The bent portion 42 is formed with a fixing hole 51 that penetrates the bent portion 42 in the front-rear direction. A lever rotation shaft 53 is fixed in the fixed hole 51. An axis (third axis) O1 of the lever rotation shaft 53 extends in the front-rear direction. The lever rotation shaft 53 is cantilevered from the bent portion 42 toward the rear.
A second spring locking portion 52 is formed at the upper end edge of the bent portion 42. The second spring locking portion 52 is formed such that the upper end edge of the bent portion 42 is recessed downward.

FIG. 7 is a plan view of the lock mechanism 14.
As shown in FIGS. 4 and 7, the latch 32 is disposed below the holder 31 (base portion 41) in the case 10. The latch 32 is supported by the holder 31 so as to be slidable and rotatable. Specifically, the latch 32 includes a latch plate 55 and a first pin 56 and a second pin 57 erected from the latch plate 55.
The latch plate 55 is formed in an L shape in plan view. Specifically, the latch plate 55 includes a restriction plate portion 61 and an engagement plate portion 62 that extends from the rear end portion of the restriction plate portion 61 to the right side.

  The front end edge of the restricting plate portion 61 constitutes a restricting side portion 61a extending in the left-right direction. Note that a latch relief portion 63 with a corner portion cut off is formed at a portion of the regulation plate portion 61 located on the right side portion of the front end. The latch relief 63 avoids contact with the restriction unit 34 when the latch 32 rotates.

  The engagement plate portion 62 is formed in a triangular shape in plan view. Specifically, the engagement plate portion 62 is formed in a triangular shape in which the width in the front-rear direction is gradually reduced toward the right side. The engagement plate portion 62 protrudes outside the case 10 through the above-described insertion hole 23 of the case 10 (see FIG. 2).

The front end edge of the engaging plate portion 62 constitutes an engaging side portion 62a that extends linearly in the left-right direction. The engagement side portion 62a engages the latch engagement portion 6 described above at the closed position of the open / close door 4 from the rear side to restrict the opening operation of the open / close door 4. Further, the engagement side portion 62 a is in contact with the latch stopper 45 described above in the case 10 from behind.
The rear end edge of the engaging plate portion 62 constitutes an inclined side portion 62b that gradually extends forward toward the right side. The inclined side portion 62b slides on the latch engaging portion 6 when the opening / closing door 4 is closed.

  The first pin 56 is erected upward from the regulation plate portion 61. The first pin 56 is supported in the latch mounting groove 46 of the holder 31. The latch 32 is supported by the holder 31 so as to be slidable in the left-right direction starting from the first pin 56 and rotatable about the axis line (first rotation axis) O2 of the first pin 56. In the present embodiment, as shown in FIG. 7, the first pin 56 is in contact with the right edge of the latch mounting groove 46, and the engagement side portion 62a of the latch 32 is in contact with the latch stopper 45 from the rear. Is the latching position of the latch 32. In the latched position, the latch 32 has the largest protrusion amount of the engagement plate portion 62 through the insertion hole 23 (see FIG. 5), and the engagement side portion 62a and the latch engagement portion 6 can be engaged. Yes. In the locking position, a gap S is formed in the front-rear direction between the regulating side portion 61a of the latch 32 and the rear surface of the bent portion 42 of the holder 31.

FIG. 8 is an operation explanatory view for explaining the sliding operation of the latch 32, and is a plan view corresponding to FIG.
As shown in FIG. 8, the latch 32 is configured to be slidable with respect to the holder 31 when the first pin 56 moves in the left-right direction in the latch mounting groove 46. As the latch 32 slides to the left (see the arrow in FIG. 8), the amount of protrusion through the insertion hole 23 (see FIG. 5) decreases, and the latch 32 gets over the latch engaging portion 6 when the door 4 is closed. It is like that. In the present embodiment, a position where the latch 32 can get over the latch engaging portion 6 during the closing operation of the open / close door 4 is defined as a slide position. Note that the latch 32 protrudes to the outside of the case main body 11 through a passage hole 24 (see FIG. 4) of the case main body 11 at the sliding position.

FIG. 9 is an operation explanatory view for explaining the rotation operation of the latch 32, and is a plan view corresponding to FIG.
As shown in FIG. 9, the latch 32 reduces the amount of protrusion through the insertion hole 23 (see FIG. 5) as the first pin 56 rotates about the axis O <b> 2 (see FIG. 9), and opens and closes. The latch engaging portion 6 is overcome when the door 4 is opened. In the present embodiment, the position at which the latch 32 can get over the latch engaging portion 6 during the opening operation of the open / close door 4 is defined as the locking release position. The specific operation of the lock mechanism 14 will be described later.

  As shown in FIGS. 7 to 9, the second pin 57 is erected upward from the rear end portion (a portion located behind the first pin 56) of the restricting plate portion 61. The second pin 57 is inserted into the latch guide hole 47 of the holder 31. The second pin 57 moves in the latch guide hole 47 as the latch 32 slides and rotates.

  The first urging member 33 is interposed between the latch 32 and the holder 31. The first biasing member 33 biases the latch 32 toward the locking position described above. The first biasing member 33 is, for example, a torsion coil spring. In the first urging member 33, the above-described spring mounting portion 43 is inserted into the coil portion, and a pair of arm portions are supported by the second pin 57 of the latch 32 and the first spring locking portion 44 of the holder 31, respectively. . The first biasing member 33 is not limited to a torsion coil spring.

FIG. 10 is a perspective view of the restriction unit 34 as viewed from the front. FIG. 11 is a perspective view of the restriction unit 34 as seen from the rear.
As shown in FIGS. 5, 10, and 11, the restriction unit 34 includes a bent portion 42 of the latch 32 and the holder 31 in a state where a later-described restriction portion 80 can be advanced and retracted in the gap S in the case 10. It is arranged between. That is, the regulation unit 34 and the latch 32 are arranged in the front-rear direction. The restriction unit 34 mainly includes a lever member 71, a first roller 72, and a second roller 73.

  The lever member 71 includes a plate-like lever body 74 that extends in the left-right direction. A columnar second spring mounting portion 75 protruding rearward is formed at the right end of the lever main body 74. The lever main body 74 and the second spring mounting portion 75 are formed with through holes 78 that penetrate the lever main body 74 and the second spring mounting portion 75 in the front-rear direction. The above-described lever rotation shaft 53 is inserted into the through hole 78. Therefore, the regulation unit 34 is supported by the lever rotation shaft 53 so as to be rotatable around the axis O <b> 1 of the lever rotation shaft 53.

  A pair of roller support walls 79 is formed at the left end of the lever main body 74. The roller support walls 79 extend parallel to each other upward with a space in the left-right direction. Each roller support wall 79 is formed over the entire longitudinal direction of the lever main body 74.

  As shown in FIG. 11, an engagement protrusion 82 that protrudes downward from the lever main body 74 is formed at the right end of the lever main body 74. The engaging protrusion 82 is formed in a claw shape that gradually tapers downward. A cam follower portion 82 a that protrudes to the left is formed at the tip (lower end) of the engagement protrusion 82. In the present embodiment, the width in the front-rear direction of the engaging projection 82 is narrower than the width in the front-rear direction of the lever main body 74. In the example of FIG. 11, the engagement protrusion 82 is located at the center portion in the front-rear direction of the lever main body 74. However, the width in the front-rear direction and the position in the front-rear direction of the engagement protrusion 82 with respect to the lever main body 74 can be appropriately changed.

  A second spring support portion 81 is formed at a portion of the right end portion of the lever main body portion 74 located behind the engagement protrusion 82. The second spring support portion 81 is formed by cutting out the lever main body portion 74.

As shown in FIG. 10, the first roller 72 is disposed between the roller support walls 79 in the lever member 71. Specifically, the first roller 72 is rotatably supported by a first roller shaft 72a that bridges between the pair of roller support walls 79 in the left-right direction. The outer peripheral portion of the first roller 72 protrudes upward and backward with respect to the roller support wall 79.
The second roller 73 is disposed in front of the first roller 72 between the roller support walls 79. Specifically, the second roller 73 is rotatably supported by a second roller shaft 73a that bridges between the pair of roller support walls 79 in the left-right direction. The outer peripheral portion of the second roller 73 protrudes upward and forward with respect to the roller support wall 79.

FIG. 12 is a side view of the lock mechanism 14 as viewed from the left side. FIG. 13 is a partial cross-sectional view of the lock mechanism 14 as seen from the front, showing a state in which the restriction unit 34 is in the allowable position.
As shown in FIGS. 12 and 13, the regulation unit 34 rotates around the axis O <b> 1 in a state where the latch 32 is in the locking position described above. Thereby, in the restriction unit 34, the rollers 72 and 73 and the roller support wall 79 (hereinafter collectively referred to as the restriction portion 80) move forward and backward with respect to the gap S described above. In the present embodiment, the state where the restricting portion 80 enters the gap S is defined as a restricting position (see FIG. 12). On the other hand, a state where the restricting portion 80 is retracted from the gap S is set as an allowable position (see FIG. 13).

  In the restriction position shown in FIG. 12, the restriction part 80 of the restriction unit 34 enters the gap S described above and is sandwiched between the restriction side part 61 a of the latch 32 and the bent part 42 of the holder 31 in the front-rear direction. Thereby, the rotation of the latch 32 about the axis O2 to the restriction release position is restricted. In the present embodiment, the outer peripheral surface of the first roller 72 is in contact with the restriction side portion 61a at the restriction position. On the other hand, the outer peripheral surface of the second roller 73 is in contact with the rear surface of the bent portion 42 at the restriction position. Moreover, in this embodiment, the outer peripheral surfaces of the rollers 72 and 73 are in contact with the base 41 of the holder 31 from below at the restriction position. Thereby, the upward rotation of the restriction unit 34 is restricted. In the present embodiment, it is preferable that the outer peripheral surfaces of the rollers 72 and 73 are in contact with each other at least at the restriction position. However, the outer peripheral surfaces of the rollers 72 and 73 may always be in contact with each other regardless of the restriction position, or may be always separated from each other.

  In the permissible position shown in FIG. 13, the restriction portion 80 of the restriction unit 34 is retracted from the gap S. In other words, at the permissible position, the regulation unit 34 (the rollers 72 and 73) and the latch 32 do not overlap with each other when viewed from the front when viewed from the front-rear direction. As a result, the restricting portion 80 retreats from the turning locus of the latch 32, and the turning around the axis O2 to the restriction releasing position of the latch 32 is allowed.

  As shown in FIG. 5, the second urging member 35 is interposed between the restriction unit 34 and the holder 31. The second urging member 35 urges the restriction unit 34 toward the restriction position. The second urging member 35 is, for example, a torsion coil spring. In the second urging member 35, the second spring mounting portion 75 described above is inserted into the coil portion, and the pair of arm portions are connected to the second spring support portion 81 of the lever member 71 and the second spring locking portion 52 of the holder 31. Each is supported. The second urging member 35 is not limited to a torsion coil spring.

  As shown in FIGS. 5 and 6, the actuator 37 is a so-called geared motor in which, for example, a motor body and a gear box are integrally connected. The actuator 37 is supported by the case body 11 (see FIG. 4) with the output shaft 91 protruding forward, below the latch 32. In other words, in the present embodiment, the axis O1 of the restriction unit 34 and the axis (second axis) O3 of the actuator 37 extend in parallel in the front-rear direction (the arrangement direction of the latch 32 and the restriction unit 34). The axis O2 of the latch 32 is orthogonal to the axis O1 of the restriction unit 34 and the axis O3 of the actuator 37. Note that the rotation angle of the actuator 37 is detected by a photo sensor (not shown), an encoder, or the like.

FIG. 14 is a partial cross-sectional view of the lock mechanism 14 showing the state where the restriction unit 34 is in the restriction position, as viewed from the front.
As shown in FIG. 14, the cam member 36 is connected to the front end portion of the output shaft 91 in the actuator 37. That is, the cam member 36 is disposed coaxially with the actuator 37 axis O3. The outer peripheral surface of the cam member 36 constitutes a cam surface 92 extending along the involute curve. The shape of the cam surface 92 can be changed as appropriate, and may be based on, for example, an Archimedean curve.

  The cam surface 92 is engaged (contacted) with the cam follower portion 82a of the restriction unit 34 described above. Therefore, the restriction unit 34 rotates between the restriction position and the allowable position described above by the rotation of the cam member 36 accompanying the drive of the actuator 37.

  As shown in FIG. 12, in this embodiment, the engagement protrusion 82 and the cam member 36 are engaged with each other within a width W in the front-rear direction of the restriction unit 34 (restriction portion 80). Specifically, the width W includes a contact portion P1 between the restriction portion 80 (first roller 72) and the latch 32 (restriction side portion 61a), and a restriction portion 80 (second roller 73) and the bent portion 42 of the holder 31. The distance in the front-rear direction between the contact portions P2 (in this embodiment, the sum of the diameters of the rollers 72 and 73). In the present embodiment, the engagement protrusion 82 and the cam member 36 are located at the center portion of the width W described above. However, the positions of the engagement protrusion 82 and the cam member 36 in the front-rear direction within the width W can be changed as appropriate. Further, the engaging protrusion 82 and the cam member 36 may be displaced in the front-rear direction with respect to the width W.

  Here, as shown in FIGS. 11 and 14, a part of the lever main body 74 (a part other than the engaging protrusion 82) is arranged so as to overlap at least a part of the rotation locus of the cam member 36. An escape portion 95 that avoids the cam member 36 is formed in a portion of the lever main body 74 that overlaps the rotation locus of the cam member 36. Specifically, the escape portion 95 is formed in a groove shape that is recessed upward at the center portion (the center portion of the width W) in the left-right direction of the lever main body portion 74. The escape portion 95 is configured such that at least a part of the cam member 36 passes in the course of rotation of the cam member 36. Note that the position, size, and the like of the escape portion 95 can be appropriately changed according to the shape of the cam member 36 and the engagement protrusion 82. For example, the escape portion 95 may penetrate the lever main body portion 74 in the vertical direction.

[Action]
Next, the effect | action of the storage 1 mentioned above is demonstrated. In the following description, the operation of the locking device 8 in the closing operation and the opening operation of the door 4 will be mainly described. In the following description, as shown in FIG. 7, a state where the latch 32 is in the locking position and the restriction unit 34 is in the restriction position is an initial state of the lock mechanism 14.

<Closed action>
As shown in FIG. 2, in the closing operation of the opening / closing door 4, the opening / closing door 4 is rotated in the closing direction with the hinge as a starting point. When the opening / closing door 4 is rotated in the closing direction, the latch 32 (inclined side portion 62b) of the locking device 8 comes into contact with the latch engaging portion 6 of the box 3 from the front.

  As shown in FIGS. 7 and 8, with the latch 32 (inclined side 62b) of the locking device 8 and the latch engaging portion 6 of the box 3 in contact, the door 4 is further closed. Rotate. Then, as shown in FIG. 8, a closing operation force F perpendicular to the inclined side portion 62b acts on the latch 32. Here, in the initial state, the engagement side portion 62 a of the latch 32 is in contact with the latch stopper 45 of the holder 31 from the rear. In the initial state, the restriction side 61 a of the latch 32 is in contact with the first roller 72 of the restriction unit 34 from the rear. Therefore, the latch 32 does not rotate around the axis O2 by the component force F1 acting backward from among the component forces F1 and F2 of the closing operation force F.

  On the other hand, the first pin 56 of the latch 32 is located at the right end in the latch mounting groove 46 in the initial state. Accordingly, the latch 32 slides to the left by the component force F2 acting on the left side of the component forces F1, F2 of the close operation force F when the closing operation force F acts. As the latch 32 slides, the engaging plate portion 62 of the latch 32 is pushed into the case 10 through the insertion hole 23. Thereby, with the closing operation of the door 4, the engagement plate portion 62 of the latch 32 gets over the latch engagement portion 6 rearward (moves to the slide position). The latch 32 moves toward the locking position by the urging force of the first urging member 33 when the engaging plate portion 62 gets over the latch engaging portion 6. That is, the latch 32 is engaged with the latch engaging portion 6 from behind by sliding to the right. Therefore, the door 4 is in the closed position with the locking device 8 locked.

  At the closed position of the opening / closing door 4, the latch engaging portion 6 and the engaging side portion 62a face each other in the front-rear direction. Therefore, even if the open / close door 4 is operated in the opening direction with a predetermined opening operation force, a force in the left-right direction (sliding direction) does not act on the latch 32. Further, in the initial state, since the rotation operation of the latch 32 to the unlocking position is restricted by the restriction unit 34 (the restriction portion 80), the door 4 is operated in the opening direction with a predetermined opening operation force. However, the latch 32 does not rotate to the restriction release position. Therefore, the open / close door 4 is held in the closed position.

<Opening action>
In the opening operation of the opening / closing door 4, the restriction unit 34 is first moved from the restriction position to the allowable position. Specifically, wireless communication is performed between the user's communication terminal and the communication unit 28 of the lock device 8. As a result of wireless communication, when the control unit 13 is authenticated as an appropriate user, electric power is supplied from the control unit 13 to the actuator 37.

  As shown in FIG. 14, when the restriction unit 34 is in the restriction position, the cam follower portion 82a abuts on the minimum outer diameter portion 92a of the cam member 36 (cam surface 92). When the actuator 37 is driven in this state, the cam member 36 rotates while the cam surface 92 and the cam follower 82a are in sliding contact with each other.

FIG. 15 is an explanatory view of the operation of the restriction unit 34 and is a front view of the lock mechanism 14 corresponding to FIG. 10.
As shown in FIG. 15, when the cam member 36 rotates, the contact point of the cam follower portion 82a on the cam surface 92 changes, so that the distance between the cam follower portion 82a and the axis O3 changes (increases). . Thereby, the restriction unit 34 rotates toward the permissible position around the axis O <b> 1 against the urging force of the second urging member 35. As the restriction unit 34 rotates, the restriction portion 80 (the rollers 72 and 73) gradually retreats from the gap S downward.

  Thereafter, as shown in FIG. 13, when the cam follower 82a reaches the maximum outer diameter portion 92b of the cam surface 92, the restricting portion 80 is completely retracted from the gap S (allowable position). That is, at the permissible position, the restricting portion 80 is retracted to a position where it does not overlap with the restricting plate portion 61 when viewed from the front-rear direction. The actuator 37 stops once when the regulation unit 34 moves to the allowable position. Thereby, the restriction unit 34 is maintained at the allowable position.

  Here, in the process in which the restriction unit 34 moves from the restriction position to the permission position, the first roller 72 rotates in one direction by the frictional force acting between the restriction side portion 61a. Further, the second roller 73 rotates in the opposite direction to the first roller 72 by the frictional force acting between the bent portion 42. In addition, in this embodiment, the outer peripheral surfaces of the rollers 72 and 73 are in contact with each other. Therefore, the restricting unit 34 moves to the permissible position while the rollers 72 and 73 rotate in opposite directions by the frictional force acting between the rollers 72 and 73.

  Furthermore, the lever member 71 rotates in a direction approaching the cam member 36 in the process in which the restriction unit 34 moves from the restriction position to the permission position. At this time, since the cam member 36 passes through the escape portion 95 of the lever member 71, interference between the lever member 71 other than the cam follower portion 82a and the cam member 36 is prevented.

  After the restriction unit 34 moves to the allowable position, the open / close door 4 is moved in the opening direction. Then, as shown in FIG. 9, an opening operation force acts on the engagement side portion 62 a of the latch 32 from the latch engagement portion 6 toward the rear. Along with this, the latch 32 rotates around the axis O <b> 1 against the urging force of the first urging member 33. Thereby, with the opening operation of the opening / closing door 4, the engagement plate portion 62 of the latch 32 is pushed into the case 10, and the latch 32 moves to the unlocking position. And when the engagement plate part 62 of the latch 32 gets over the latch engagement part 6, the opening / closing door 4 will be in an open position. Note that the latch 32 is rotated toward the locking position by the urging force of the first urging member 33 when the engaging plate portion 62 gets over the latch engaging portion 6. That is, the latch 32 rotates about the axis O2, so that the engaging side 62a contacts the latch stopper 45 from the rear. Thereby, the latch 32 returns to the locking position.

Further, the restriction unit 34 is set to return to the restriction position again after a predetermined time has elapsed, for example, after moving to the permissible position. Specifically, when the drive of the actuator 37 is resumed, the cam follower portion 82 a gets over the maximum outer diameter portion 92 b of the cam surface 92. Then, when the cam follower portion 82 a passes through the transition portion 92 c of the cam surface 92, the restriction unit 34 rotates toward the restriction position by the urging force of the second urging member 35. Then, the cam follower portion 82a comes into contact with the minimum outer diameter portion 92a again, whereby the restriction unit 34 is held at the restriction position. The restriction unit 34 includes a frictional force between the rollers 72 and 73, a frictional force between the first roller 72 and the latch 32 (restriction side portion 61a), and between the second roller 73 and the holder 31 (bending portion 42). The rollers 72 and 73 return to the restricting position while rotating due to the frictional force. The restriction unit 34 may return to the restriction position by wireless communication between the user's communication terminal and the communication unit 28 of the lock device 8.
Thus, the opening operation of the open / close door 4 is completed.

Thus, in this embodiment, it was set as the structure by which the escape part 95 was formed in parts other than the cam follower part 82a in the control unit 34. As shown in FIG.
According to this configuration, the contact between the cam member 36 and the restriction unit 34 accompanying the rotation of the cam member 36 can be prevented, and the distance in the left-right direction between the cam member 36 and the restriction unit 34 can be reduced. As a result, it is possible to reduce the size of the locking device 8 in front view. And the minimum size of the attachment hole 5 which can be attached can be made small by aiming at size reduction by the front view of the locking device 8. FIG. Therefore, the mounting compatibility of the locking device 8 can be improved.

By the way, the locking device described in Patent Document 1 described above has a configuration in which the arrangement direction (left-right direction) of the lock plate, cam, and actuator is orthogonal to the arrangement direction (front-rear direction) of the lock plate and latch. That is, since the lock device described in Patent Document 1 has a configuration in which the lock plate, the cam, and the actuator are arranged in a line in the surface direction of the door, it leads to an increase in size in the surface direction of the door in the lock device. easy.
On the other hand, in the present embodiment, the cam member 36 and the axis O3 of the actuator 37 are configured to extend in the front-rear direction (the arrangement direction of the latch 32 and the regulation unit 34).
According to this configuration, since the cam member 36 and the actuator 37 are arranged in the front-rear direction, the locking device 8 in a front view as viewed from the front-rear direction compared to the conventional configuration in which the cam member and the actuator are arranged in the left-right direction. The outer shape of can be reliably reduced.

  In this embodiment, since the cam member 36 is connected to the actuator 37 that is driven to rotate, the distance from the actuator 37 to the restriction unit 34 as compared with the conventional configuration in which the cam member is connected to the actuator that is linearly driven. Can be reduced.

In the present embodiment, the first roller 72 and the latch 32 are in contact with each other at the restriction position.
According to this configuration, the first roller 72 is rotated by the frictional force with the latch 32 at the time of transition between the restriction position and the allowable position. Thereby, the frictional resistance between the regulation unit 34 and the latch 32 can be reduced, and the transition between the regulation position and the allowable position can be performed smoothly.

In the present embodiment, the second roller 73 and the bent portion 42 are in contact with each other at the restriction position.
According to this configuration, the second roller 73 is rotated by the frictional force between the bent portion 42 during the transition between the restriction position and the allowable position. Thereby, the frictional resistance between the restriction unit 34 and the bent portion 42 can be reduced, and the transition between the restriction position and the allowable position can be performed smoothly.

In this embodiment, the outer peripheral surfaces of the first roller 72 and the second roller 73 are in contact with each other at the restriction position.
According to this configuration, the restricting unit 34 moves between the restricting position and the allowable position while the rollers 72 and 73 rotate in opposite directions due to the frictional force acting between the rollers 72 and 73. Thereby, the frictional resistance between the restriction unit 34 and the latch 32 and the bent portion 42 can be further reduced, and the transition between the restriction position and the allowable position can be performed smoothly.

In the present embodiment, the engagement protrusion 82 and the cam member 36 are engaged with each other within the width W in the front-rear direction of the restriction portion 80.
According to this configuration, the locking mechanism 14 can be reduced in size in the front-rear direction compared to the case where the engagement protrusion 82 and the cam member 36 are engaged with the restricting portion 80 at positions shifted in the front-rear direction. be able to.
Further, the distance between the engagement portion (power point) between the engagement protrusion 82 and the cam member 36 and the contact portion (action point) between the restriction unit 34, the latch 32, and the bent portion 42 can be shortened. Therefore, force can be efficiently transmitted from the cam member 36 to the lever member 71, and twisting of the lever member 71 can be suppressed.

  In this embodiment, since the restriction unit 34 is configured to be rotatable, for example, the movement range of the restriction unit 34 can be reduced as compared with a configuration in which the restriction unit slides. Thereby, the further miniaturization of the locking device 8 can be achieved.

  And since the storage 1 of this embodiment is provided with the locking device 8 excellent in mounting compatibility as described above, the degree of freedom in designing the mounting hole 5 can be improved.

(Modification)
In the above-described embodiment, the configuration in which the lock device 8 is directly mounted in the mounting hole 5 of the opening / closing door 4 has been described, but the configuration is not limited thereto. For example, as shown in FIG. 16, the lock device 8 may be attached to the open / close door 4 via the adjuster 100 with respect to the attachment hole 5 whose front view outer shape is larger than that of the lock device 8. Specifically, in the storage 1 shown in FIG. 16, the opening / closing door 4 is formed with a rectangular attachment hole 5 whose longitudinal direction is the left-right direction. The adjuster 100 is fitted in the mounting hole 5. The lock device 8 is assembled in an assembly hole 101 formed in the adjuster 100. In addition, the code | symbol 110 in FIG. 16 is a slot for throwing goods in the storage 1.

  As described above, the locking device 8 of the present embodiment can be assembled to the various mounting holes 5. In the above-described embodiment, the configuration in which the locking device 8 is assembled to the attachment hole 5 has been described. However, the locking device 8 may be assembled to a portion other than the hole.

(Second Embodiment)
Next, a second embodiment of the present invention will be described. This embodiment is different from the above-described embodiment in that the regulation unit 234 slides. In the following description, the same components as those in the above-described embodiment are denoted by the same reference numerals and description thereof is omitted.

FIG. 17 is a front view of the lock mechanism 214 showing a state in which the restriction unit 234 is in the restriction position in the lock device 208 according to the second embodiment. FIG. 18 is a front view of the lock mechanism 214 showing a state in which the restriction unit 234 is in the allowable position in the lock device 208 according to the second embodiment.
17 and 18, the lock mechanism 214 includes a lever member 271 configured to be slidable.

  The lever member 271 is formed in a crank shape when viewed from the front. Specifically, the lever member 271 includes a lever main body portion 274 that extends in the vertical direction, a restriction portion 280 that is continuous with the upper end portion of the lever main body portion 274, and a cam follower that is continuous with the lower end portion of the lever main body portion 274. Node portion 282.

The restricting portion 280 moves to the restricting position and the allowable position in accordance with the sliding operation of the lever member 271. That is, the restricting portion 280 is arranged at a position overlapping the latch 32 in a front view at the restricting position shown in FIG. Thereby, the rotation of the latch 32 toward the unlocking position is restricted.
On the other hand, the restricting portion 280 is disposed at a position that does not overlap the latch 32 in the front view at the allowable position shown in FIG. Thereby, the rotation of the latch 32 toward the unlocking position is allowed. The lever body 274 is urged to the restriction position (upward) by the urging member 200.

Also in the present embodiment, the axis line O3 of the cam member 236 and the actuator 37 extends along the front-rear direction (the arrangement direction of the latch 32 and the restriction unit 234).
The cam member 236 of the present embodiment is formed in an elliptical shape when viewed from the front. An output shaft 91 of the actuator 37 is connected to a position eccentric in the long axis direction with respect to the center of the cam member 236.

  The cam surface 292 (outer peripheral surface) of the cam member 236 is engaged with the cam follower 282. The regulation unit 234 is configured to slide up and down as the cam surface 292 and the cam follower 282 slide as the cam member 236 reciprocates.

  Here, in the lever member 271 of the present embodiment, a relief portion 295 that avoids interference with the cam member 236 is formed in the lever main body portion 274 (a portion other than the cam follower portion 282). The escape portion 295 is configured such that at least a part of the cam member 236 moves back and forth in the process in which the cam member 236 reciprocates.

  Also in this embodiment, the same operational effects as those of the first embodiment described above can be achieved.

The technical scope of the present invention is not limited to the above-described embodiments, and various modifications can be made without departing from the spirit of the present invention.
In the above-described embodiment, the configuration in which the regulation unit 34 includes the two rollers 72 and 73 has been described. However, the configuration is not limited to this configuration. The restriction unit 34 preferably has at least one of the rollers 72 and 73. However, the restriction unit 34 may not have the rollers 72 and 73. In this case, a member having a lower frictional resistance than the lever member 71 may be disposed at a contact portion between the restriction unit 34 and the latch 32 or the bent portion 42.

In the above-described embodiment, the case where an actuator that rotationally drives has been described. However, the present invention is not limited to this configuration. For example, an actuator that drives linearly may be employed.
In the above-described embodiment, the configuration in which the cam follower is in contact with the cam surface set on the outer peripheral surface of the cam member has been described. However, the configuration is not limited thereto. For example, the inner surface of the groove formed in the cam member may be set as the cam surface.
In the above-described embodiment, the configuration in which the axis O3 is disposed in parallel to the arrangement direction of the latch 32 and the regulation unit 34 has been described, but the configuration is not limited to this configuration. For example, the axis O <b> 3 may be inclined with respect to the arrangement direction of the latch 32 and the regulation unit 34. However, as the angle between the axis O3 and the arrangement direction increases, the outer shape of the locking device 8 in front view increases.

  In addition, in the range which does not deviate from the meaning of this invention, it is possible to replace suitably the component in the embodiment mentioned above by a known component, and you may combine each modification mentioned above suitably.

DESCRIPTION OF SYMBOLS 1 ... Storage 2 ... Opening part 3 ... Box (One member, the other member)
4. Opening / closing door (one member, the other member)
8 ... Locking device 32 ... Latch 34 ... Regulating unit 36 ... Cam member 37 ... Actuator (drive mechanism)
42 ... Bent part (contact part)
DESCRIPTION OF SYMBOLS 71 ... Lever member 72 ... 1st roller 73 ... 2nd roller 82a ... Cam follower part 92 ... Cam surface 95 ... Escape part 208 ... Locking device 234 ... Restriction unit 236 ... Cam member 271 ... Lever member 282 ... Cam follower part 292 ... Cam surface 295 ... Escape part

Claims (8)

Of the box having an opening and the opening and closing door provided in the box so that the opening can be opened and closed, provided in one member, and in the closed position of the opening and closing door, the box and the opening and closing door, A locking device locked to the other member,
A latch configured to be rotatable about a first axis between a locking position locked to the other member and a locking release position where locking with the other member is released;
A cam member that rotates about a second axis and has a cam surface;
A regulation unit that is arranged alongside the latch along the second axis and has a cam follower that engages with the cam surface;
The restricting unit is configured to retract from a restricting position that abuts the latch and restricts the rotation of the latch to the unlocking position and a turning locus of the latch as the cam member rotates. Moved to an allowable position allowing rotation to the unlocking position of
The locking device is characterized in that an escape portion that avoids contact with the cam member is formed in a portion other than the cam follower portion in the restriction unit. The regulation unit is
A lever member formed with the relief portion;
A first roller rotatably supported by the lever member,
The locking device according to claim 1, wherein the first roller is in contact with the latch at the restriction position of the restriction unit. At the restriction position of the restriction unit, a contact portion that sandwiches the restriction unit with the latch is disposed on the opposite side of the latch with respect to the restriction unit,
The restriction unit includes a second roller rotatably supported by the lever member,
The locking device according to claim 2, wherein the second roller is in contact with the contact portion at the restriction position of the restriction unit. The rotation axis of the first roller and the rotation axis of the second roller extend parallel to each other,
4. The locking device according to claim 3, wherein an outer peripheral surface of the first roller and an outer peripheral surface of the second roller are in contact with each other at the restriction position of the restriction unit. At the restriction position of the restriction unit, a contact portion that sandwiches the restriction unit with the latch is disposed on the opposite side of the latch with respect to the restriction unit,
The cam follower portion and the cam surface are disposed between a contact portion between the restriction unit and the latch at the restriction position and a contact portion between the restriction unit and the contact portion. The locking device according to any one of claims 1 to 4, characterized in that:   The lock device according to claim 1, wherein the restriction unit is configured to be rotatable around a third axis parallel to the second axis.   7. The drive mechanism according to claim 1, further comprising a drive mechanism that is connected to the cam member and is arranged alongside the cam member along the second axis. Locking device. A box having an opening;
An opening / closing door provided in the box so that the opening can be opened and closed;
The said box and the said opening-and-closing door are provided in one member, and are locked by the other member among the said box and the said opening-and-closing door in the closed position of the said opening-and-closing door. A storage room comprising the lock device according to any one of the above items.

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