JP2015150339A - Lock device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a lock device capable of releasing a lock state without moving a front plate.SOLUTION: When releasing a lock state of a lock device 10, a rotation operation part 32C of a lever 32 that slightly protrudes from a front plate 20 of a kitchen cabinet 12 is rotated against an energizing force of a coil spring 38. By this rotation operation, a tilting protrusion 50 formed in a rod 34 rotates with the rod 34, and the tilting protrusion 50 rotates a lock arm 36. Thus, the engagement of an engaging projection 28 of a lock pin 24 and a lock hole 58 of the lock arm 36 is released, and the front plate 20 can move with an upper drawer 16 in a drawing direction. As a result, the lock state of the lock device 10 can be released without moving the front plate 20.

Description

  The present invention relates to a locking device used for a front plate or the like that opens and closes a storage section provided in a furniture that is everyday furniture.

  Conventionally, there exists patent document 1 as a locking device, for example. In this prior art, in the opened state of the storage tool, it is possible to select in advance whether the lock body can be engaged with the engaging member or not. Then, when the lock body is in a position where the lock body can be engaged, the lock body swings between an engagement position where the lock body engages with the engagement member and a retracted position where the lock body retracts from the engagement member. An oscillating means that can move is provided.

JP 2009-50352 A

  However, in patent document 1, when releasing the lock main body in a locked state (engagement position), the clearance gap for operating the operation part of a locking device is needed. For this reason, even in the locked state, the front plate, which is the decorative plate of the kitchen cabinet, moves a small amount toward the front, and a gap is generated between the front plate and the storage space of the kitchen cabinet.

  In view of the above facts, an object of the present invention is to obtain a locking device that can release a locked state without moving the front plate.

  The locking device of the present invention according to claim 1 is a lock main body attached to any one of a front plate that opens and closes an opening of a storage portion provided in a fixture, and a housing of the fixture, the front plate, An engagement member provided on the other side of the housing so as to be engageable with the lock main body and preventing the movement of the front plate by engaging with the lock main body, and the lock main body includes the front plate And a base attached to one of the housing, a lever provided on the base, an operation part exposed from the front plate, and capable of being rotated, and a rotation shaft of the lever provided on the base. And a lock arm that is provided at the base and interlocks with the rotation of the rod, and an urging means that urges the lock arm toward the engagement member, and by rotating the lever, Between the lock arm and the engagement member. If it is released.

  In the locking device according to the first aspect of the present invention, a lock body attached to one of the front plate for opening and closing the opening of the storage unit provided in the fixture and the cabinet of the fixture, the front plate and the cabinet, The engagement member is engaged with the lock main body and engaged with the lock main body to prevent the movement of the front plate. In the locked state, the front plate is not moved by the locking device, and no gap is generated between the front plate and the storage portion. Also, when releasing the locked state, the lever operating part provided at the base of the lock body attached to either the front plate or the housing is exposed from the front plate, and the operation of this lever Rotate the part. When the lever is rotated, the lock arm rotates against the urging force of the urging means that urges the lock arm toward the engaging member in conjunction with the rotation of the rod that is the rotation axis of the lever, and locks. The engagement between the arm and the engagement member is released. For this reason, the locked state can be released without moving the front plate in the opening direction.

  According to a second aspect of the present invention, in the locking device according to the first aspect, the rod is provided on the rod, rotates integrally with the rod, contacts the lock arm, and causes the lock arm to move the biasing means. Lock arm rotating means for rotating in the unlocking direction against the urging force is provided.

  In the locking device according to the second aspect of the present invention, the lock arm rotating means provided on the rod rotates integrally with the rod by rotating the lever and abuts against the lock arm, and the lock arm is moved by the biasing means. Rotate in the unlocking direction against the urging force. For this reason, by changing the length of the lever and the length of the lock arm rotating means, the operation force for unlocking can be easily adjusted.

  According to a third aspect of the present invention, in the locking device according to the first or second aspect, the locking means provided on either the base portion or the lock arm, and the base portion and the lock arm And a locked means that is provided on either side and engages with the locking means and holds the lock arm in an unlocked state.

  In the locking device according to the third aspect of the present invention, the locking means provided on one of the base and the lock arm, and the locked means provided on the other of the base and the lock arm, By engaging, the lock arm can be held in the unlocked state.

  According to a fourth aspect of the present invention, in the locking device according to the third aspect, the locking means is a locking hole formed in the lock arm, and the locked means is formed in the base portion, It is the latching | locking part engaged with a stop hole.

  In the lock device according to the fourth aspect of the present invention, the lock arm can be held in the unlocked state by engaging the engagement hole formed in the lock arm with the engagement portion formed in the base portion.

  According to a fifth aspect of the present invention, in the locking device according to any one of the first to fourth aspects, the lever does not protrude beyond the front surface of the front plate in a state where the lock arm is held in an unlocked state. Can be stored in a location.

  In the lock device according to the fifth aspect of the present invention, the appearance of the front surface of the fixture is improved by storing the lever in a position that does not protrude from the front surface of the front plate while the lock arm is held in the unlocked state.

  Since the locking device according to the first aspect of the present invention has the above-described configuration, the locked state can be released without moving the front plate.

  Since the locking device according to the second aspect of the present invention has the above configuration, the locked state can be released without moving the front plate.

  Since the lock device according to the third aspect of the present invention has the above configuration, the lock arm can be held in the unlocked state.

  Since the lock device according to the fourth aspect of the present invention has the above-described configuration, the lock arm can be held in the unlocked state.

  Since the locking device according to the fifth aspect of the present invention has the above-described configuration, the appearance of the front surface of the fixture can be improved.

It is a perspective view which shows the locked state of the locking device which concerns on 1st Embodiment of this invention. It is a disassembled perspective view which shows the locking device concerning 1st Embodiment of this invention. It is a top view which shows the locked state of the locking device which concerns on 1st Embodiment of this invention. It is a top view which shows lock release operation of the locking device which concerns on 1st Embodiment of this invention. It is a perspective view which shows the lock release holding | maintenance state of the locking device concerning 1st Embodiment of this invention. It is a top view which shows the lock release holding | maintenance state of the locking device concerning 1st Embodiment of this invention. It is the perspective view seen from diagonally forward which shows the fixture to which the locking device concerning a 1st embodiment of the present invention was applied. It is a top view which shows the lock release holding | maintenance state of the locking device concerning 2nd Embodiment of this invention.

(First embodiment)
Next, 1st Embodiment of the locking device of this invention is described according to FIGS.
In the figure, arrow FR indicates the forward direction of the fixture to which the locking device is applied, arrow UP indicates the upward direction, and arrow IN indicates the inner direction in the width direction.

  As shown in FIG. 7, the locking device 10 of this embodiment is applied to a kitchen cabinet 12 as a fixture. In addition, although illustration was abbreviate | omitted, in the upper part of the kitchen cabinet 12, the sink part which a user uses for washing tableware etc. as an example, and the working space for cooking etc. are provided.

  An upper drawer 16 is provided at a central portion in the vertical direction of the casing 14 of the kitchen cabinet 12 so as to be movable in the front-rear direction in a space inside the kitchen cabinet 12 and serves as a storage unit for storing tableware, a kitchen knife, and the like. Yes. Further, below the upper drawer 16, a lower drawer 18 is provided as a storage unit that is movably disposed in the front-rear direction in the space inside the kitchen cabinet 12 and stores tableware and foodstuffs. The upper drawer 16 and the lower drawer 18 are provided so as to be drawable (movable) to the front side (front side) of the kitchen cabinet 12 by guide rails (not shown).

  A front plate 20 that opens and closes a storage unit provided in the kitchen cabinet 12 is provided on the front side of the upper drawer 16, and the front plate 20 is a decorative plate of the kitchen cabinet 12. Further, when the user holds and operates a handle (not shown) provided on the upper portion of the front plate 20, the front plate 20 moves in the front-rear direction together with the upper drawer 16 and can be opened and closed. ing.

  A lock body 22 of the lock device 10 is attached to the back surface (rear surface) of the outer end portion in the width direction of the front plate 20. On the other hand, a lock pin 24 as an engaging member of the lock device 10 is attached to the inner surface of the side wall 14 </ b> A in the housing 14 of the kitchen cabinet 12.

  As shown in FIGS. 1 and 2, the lock pin 24 includes a base portion 24 </ b> A having a substantially rectangular plate shape whose longitudinal direction is the front-rear direction of the kitchen cabinet 12. An attachment hole 26A is formed in the attachment portion 26 formed at the rear portion of the base 24A of the lock pin 24, and the lock pin 24 is attached to the kitchen cabinet 12 by a fixing member 27 such as a screw inserted into the attachment hole 26A. It is fixed to the side wall 14 </ b> A of the housing 14. Further, an engagement projection 28 is formed to project toward the inner side in the width direction of the kitchen cabinet 12 at the front portion of the base portion 24 </ b> A of the lock pin 24.

  As shown in FIG. 3, the front wall 28 </ b> A of the engagement protrusion 28 is an inclined surface that is inclined from the front in the width direction to the rear in the width direction. On the other hand, the rear wall 28B of the engagement protrusion 28 is a flat surface along the width direction, and a convex portion 28C protruding rearward is formed at the inner end in the width direction of the rear wall 28B of the engagement protrusion 28. ing.

  As shown in FIG. 2, the lock body 22 includes a base 30 of the lock body 22, a lever 32, a rod 34, a lock arm 36, and a coil spring 38 as an urging means.

  The base 30 of the lock body 22 has a substantially L-shaped plate shape, and includes a lower part 30A extending in the width direction of the kitchen cabinet 12 and an upper part 30B extending upward from the outer side in the width direction of the lower part 30A. And. Further, a mounting hole 40 is formed in the center in the width direction of the lower portion 30A of the lock main body 22, and the base 30 of the lock main body 22 is fixed to the kitchen cabinet by a fixing member 42 such as a screw inserted into the mounting hole 40. 12 are fixed to the back surface of the front plate 20.

  Two upper and lower bearing portions 44 are formed at the upper end of the upper portion 30B of the base portion 30 to rotatably support two upper and lower flanges 34A formed on the upper portion of the rod 34. In FIG. 2, the lower bearing portion 44 is not shown. Further, a bearing portion 46 that rotatably supports the lower end 34B of the rod 34 is formed at a position facing the bearing portion 44 at the lower end of the lower portion 30A of the base portion 30.

  The lever 32 is provided at the upper end of the rod 34. The lever 32 has a long thin plate shape, and the end 32 </ b> A on the outside in the width direction of the kitchen cabinet 12 is connected to the upper end of the rod 34. Further, the central portion 32B in the longitudinal direction of the lever 32 is bent, and the other end portion of the lever 32 is a rotation operation portion 32C. Therefore, the rod 34 serves as the rotation axis of the lever 32, and the rod 34 can be rotated in the directions of arrows A and B in FIGS. 1 to 3 by rotating the rotation operation portion 32C of the lever 32. ing.

  As shown in FIG. 2, a tilting convex portion 50 as a lock arm rotating means is formed on the lower portion 34 </ b> C of the rod 34 so as to protrude outward in the radial direction of the rod 34. The tilting convex portion 50 is rotatable together with the rod 34 in the directions of arrows A and B in FIGS.

  The lock arm 36 is in the form of a long plate, and a pair of upper and lower shaft portions 52 are formed at one end 36A in the vertical direction. Each shaft portion 52 of the lock arm 36 is rotatably supported by a pair of upper and lower bearing portions 54 formed at the center in the longitudinal direction of the lower portion 30A of the base portion 30. In FIG. 2, the upper bearing portion 54 is not shown. Therefore, the lock arm 36 can rotate in the directions of arrows C and D in FIGS.

  A coil spring 38 as an urging means is provided between the upper and lower shaft portions 52 in the lock arm 36. The lower end 38A of the coil spring 38 is in contact with the lock arm 36, and the upper end 38B of the coil spring 38 is in contact with the lower part 30A of the base 30. The coil spring 38 biases the lock arm 36 toward the lock pin 24 (in the direction of arrow C in FIGS. 1 to 3).

  A locking hole 58 is formed in the distal end portion 36 </ b> B that is the other end portion of the lock arm 36. The locking hole 58 has a rectangular shape whose longitudinal direction is the vertical direction, and serves as locking means for the locking device. On the other hand, at the end 30C of the lower portion 30A of the base 30 opposite to the bearing portions 44 and 46, a locking portion 60 is formed as a locking means of the locking device.

  A rectangular notch 62 is formed at the end 30 </ b> C of the base 30. Moreover, the latching | locking part 60 is provided with the connection part 60A, and is connected with the peripheral part by the side of the bearing parts 44 and 46 in the notch 62 by this connection part 60A. Accordingly, the locking portion 60 can swing in the directions of arrows E and F in FIG. 2 around the connecting portion 60A. Further, an engaging claw 60B is formed to project from a portion of the front end portion of the locking portion 60 on the side of the bearing portions 44, 46, and this engaging claw 60B is formed on the peripheral edge of the locking hole 58 in the lock arm 36. The lock arm 36 is engaged and held in the unlocked state shown in FIGS. 5 and 6.

  As shown in FIG. 2, an inclined surface 60 </ b> C is formed on the distal end side (rear side of the kitchen cabinet 12) of the engaging claw 60 </ b> B in the locking portion 60, and the lock arm 36 is manually held in the unlocked state. When rotated in the direction (the direction of arrow D in FIGS. 1 to 3), the peripheral edge of the locking hole 58 in the lock arm 36 slides on the inclined surface 60C. Further, the inclined surface 60C slides with the peripheral edge portion of the locking hole 58 in the lock arm 36, so that the locking portion 60 swings in the direction of arrow E in FIG. 2 is returned in the direction of arrow F. As a result, the engaging claw 60B engages with the peripheral edge portion of the locking hole 58 in the lock arm 36, and the lock arm 36 is held in the unlocked state.

  As shown in FIG. 3, in the lock device 10, when the lock arm 36 is not held in the unlocked state, the lock arm 36 is moved to the lock pin 24 side (in the direction of arrow C in FIG. 3) by the urging force of the coil spring 38. ) Is always energized. For this reason, when the front plate 20 drawn forward moves together with the upper drawer 16 in the storage direction (in the direction of arrow G in FIG. 3), the distal end portion 36B of the lock arm 36 slides on the front wall 28A of the engagement projection 28. The lock arm 36 can rotate in the direction of arrow D in FIG. 3 against the urging force of the coil spring 38. When the front plate 20 further moves in the storage direction (in the direction of arrow G in FIG. 3) together with the upper drawer 16, the distal end portion 36B of the lock arm 36 gets over the engagement protrusion 28 and is locked by the urging force of the coil spring 38. The arm 36 rotates in the direction of arrow C in FIG. By this rotation, the locking projection 58 of the lock pin 24 is engaged with the locking hole 58 of the lock arm 36, and the front plate 20 moves together with the upper drawer 16 in the pulling direction (the direction of arrow H in FIG. 3). become unable.

  On the other hand, when releasing the locked state of the locking device 10, as shown in FIG. 3, in the locked state, the rotation operation part 32C of the lever 32 slightly protruding from the front plate 20 is, as shown in FIG. The coil spring 38 is rotated outward in the width direction (arrow A direction) against the urging force of the coil spring 38. By this rotation operation, the tilting convex portion 50 rotates in the direction of arrow A together with the rod 34, the tilting convex portion 50 comes into contact with the lock arm 36, and the lock arm 36 is rotated in the direction of arrow D in FIG. ing. As a result, the engagement between the engagement protrusion 28 of the lock pin 24 and the locking hole 58 of the lock arm 36 is released, so that the front plate 20 can move in the pull-out direction (the direction of arrow H in FIG. 4) together with the upper drawer 16. become.

  As shown in FIG. 2, a protruding portion 35 along the axial direction is formed to project at a portion between the upper and lower flanges 34 </ b> A of the rod 34. On the other hand, a plate-like portion 37 that can be elastically deformed is formed in the central portion of the upper portion 30 </ b> B of the base portion 30. Then, as shown in FIG. 6, the lever 32 is stored in a position where it does not protrude from the front plate 20 at the position where the lock arm 36 is held in the unlocked state by the convex portion 35 and the plate-like portion 37 coming into contact with each other. Can be done.

(Action / Effect)
In the present embodiment, as shown in FIGS. 1 and 3, in the locked state of the locking device 10, the engagement protrusions 28 of the lock pin 24 are engaged with the locking holes 58 of the lock arm 36, and the front plate 20. Cannot move together with the upper drawer 16 in the pulling direction (the direction indicated by the arrow H in FIG. 3). For this reason, the front plate 20 is not opened, and no gap is generated between the front plate 20 and the storage portion.

  On the other hand, when the locking state of the locking device 10 is released, the rotation operation portion 32C of the lever 32 slightly protruding from the front plate 20 is resisted against the urging force of the coil spring 38 in the locking state shown in FIG. , And rotate in the direction of arrow A shown in FIG. By this rotation operation, the tilting convex portion 50 formed on the rod 34 together with the rod 34 rotates in the direction of arrow A in FIG. 4, the tilting convex portion 50 contacts the lock arm 36, and the lock arm 36 is moved to the arrow in FIG. Rotate in the D direction. As a result, the engagement between the engagement protrusion 28 of the lock pin 24 and the locking hole 58 of the lock arm 36 is released, and the front plate 20 can move in the pull-out direction (the direction of arrow H in FIG. 3) together with the upper drawer 16. Become.

  Therefore, in the locking device 10 of the present embodiment, the locked state can be released without moving the front plate 20 in the opening direction. That is, in the locking device 10 of the present embodiment, there is no gap between the front plate 20 and the housing 14 when releasing the lock.

  On the other hand, when the pulled front plate 20 is moved in the retracting direction (in the direction of arrow G in FIG. 3) together with the upper drawer 16, the distal end portion 36B of the lock arm 36 slides with the front wall 28A of the engaging projection 28, It rotates in the direction of arrow D in FIG. 3 against the urging force of the coil spring 38. When the front plate 20 further moves in the storage direction (in the direction of arrow G in FIG. 3) together with the upper drawer 16, the distal end portion 36B of the lock arm 36 gets over the engagement protrusion 28 and is locked by the urging force of the coil spring 38. The arm 36 rotates in the direction of arrow C in FIG. By this rotation, the locking projection 58 of the lock pin 24 is engaged with the locking hole 58 of the lock arm 36, and the front plate 20 moves together with the upper drawer 16 in the pulling direction (the direction of arrow H in FIG. 3). It becomes impossible.

  Further, in the present embodiment, with the front plate 20 being pulled out together with the upper drawer 16, it is possible to manually rotate the lock arm 36 in the direction in which the lock arm 36 is held in the unlocked state (the direction of arrow D in FIG. 2). When the lock arm 36 is manually rotated in the unlocking state, the inclined surface 60C of the locking portion 60 formed on the base 30 slides with the peripheral edge portion of the locking hole 58 in the lock arm 36, and is connected. The locking portion 60 swings in the direction of arrow E in FIG. 2 around the portion 60A. Thereafter, when the locking portion 60 returns to the direction of arrow F in FIG. 2, the engaging claw 60 </ b> B of the locking portion 60 engages with the peripheral edge portion of the locking hole 58 in the lock arm 36. For this reason, the lock arm 36 is held in the unlocked state against the urging force of the coil spring 38. In this unlocked state, even if the front plate 20 is closed, the lock device 10 is not locked.

  Further, in the present embodiment, by the rotation operation of the lever 32, the tilting convex portion 50 provided on the rod 34 rotates integrally with the rod 34, contacts the lock arm 36, and the lock arm 36 is moved to the coil spring 38. Rotate in the unlocking direction against the urging force. For this reason, the operation force of unlocking can be easily adjusted by changing the length of the lever 32 and the length of the convex portion 50 for tilting.

  In the present embodiment, as shown in FIG. 6, the lever 32 is stored in a position that does not protrude from the front plate 20 with the lock arm 36 held in the unlocked state, so that the front of the kitchen cabinet 12 is The appearance can be improved.

(Other embodiments)
In the above, the present invention has been described in detail for specific embodiments. However, the present invention is not limited to the above-described embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, as in the second embodiment shown in FIG. 8, the lock arm 36 can be held in the unlocked state by further rotating the lever 32 in the unlocking direction (arrow A direction in FIG. 8). May be.

  Further, in each of the above embodiments, the rod 34 to which the lever 32 is coupled and the lock arm 36 are configured to rotate about different rotation axes. However, instead of this, the rod provided with the lever 32 is provided. 34 and the lock arm 36 may be coaxial and housed in the front plate 20.

  Moreover, in each said embodiment, although the lock main body 22 of the locking device 10 was attached to the front board 20 of the kitchen cabinet 12, the lock pin 24 as an engaging member of the locking device 10 was attached to the housing | casing 14 of the kitchen cabinet 12. Instead of this, the lock body 22 of the lock device 10 may be attached to the housing 14 of the kitchen cabinet 12, and the lock pin 24 as the engaging member of the lock device 10 may be attached to the front plate 20 of the kitchen cabinet 12. Good.

  Moreover, in each said embodiment, although the engaging member of the locking device 10 was used as the lock pin 24, the engaging member of the locking device 10 is not limited to the lock pin 24. FIG.

  Further, in each of the above-described embodiments, a locking hole 58 serving as a locking device for the locking device is formed in the distal end portion 36B of the locking arm 36, and a locking device for the locking device is formed in the end 30C of the base 30. Although the locking portion 60 is formed, instead of this, the locking portion 60 as the locking means of the locking device is formed at the tip end portion 36B of the locking arm 36, and the locking device 60 is formed at the end 30C of the base portion 30. It is good also as a structure which formed the locking hole 58 as a locking means.

  Moreover, in each said embodiment, although the locking device 10 of this invention was applied to the kitchen cabinet 12 as a fixture, you may apply the locking device 10 of this invention to fixtures other than the kitchen cabinet 12. FIG.

10 Locking device 12 Kitchen cabinet
14 Kitchen cabinet housing 16 Upper drawer (storage section)
20 Front plate of kitchen cabinet 22 Lock body 24 Lock pin (engagement member)
28 Engagement protrusion 30 Base of lock body 32 Lever 34 Rod 36 Lock arm 38 Coil spring (biasing means)
50 Convex part for tilting (lock arm rotating means)
58 Locking hole (Locking device locking device)
60 Locking part (locked means of locking device)

Claims (5)

A lock body attached to either one of the front plate for opening and closing the opening of the storage unit provided in the fixture and the casing of the fixture;
An engagement member provided on the other of the front plate and the housing so as to be engageable with the lock main body, and engaging the lock main body to prevent the movement of the front plate;
With
The lock body is
A base attached to either the front plate or the housing;
A lever provided on the base, the operation part is exposed from the front plate, and is rotatable;
A rod provided on the base and serving as a rotation axis of the lever;
A lock arm provided at the base and interlocking with the rotation of the rod;
Biasing means for biasing the lock arm toward the engagement member;
And a locking device in which the engagement between the lock arm and the engagement member is released by a rotation operation of the lever.   A lock arm rotating means provided on the rod, rotating integrally with the rod to contact the lock arm, and rotating the lock arm in the unlocking direction against the biasing force of the biasing means. Item 2. The locking device according to Item 1. Locking means provided on one of the base and the lock arm;
Locked means that is provided on the other of the base and the lock arm, engages with the locking means, and holds the lock arm in an unlocked state;
The locking device according to claim 1, comprising:   The said latching means is a latching hole formed in the said lock arm, The said to-be-latched means is a latching part formed in the said base and engaged with the said latching hole. Locking device.   The lock device according to any one of claims 1 to 4, wherein the lever can be stored at a position that does not protrude from the front surface of the front plate in a state where the lock arm is held in an unlocked state.

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