JPH0738513U - Door locking device for furniture etc. - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the door from bending in the locked state so that the locked state can be reliably maintained. [Structure] When a lock operation of a cylinder lock 8 is performed in a closed state in which a latch 6 is engaged with a locking hole 2b, a dead bolt 9 is engaged with an insertion hole 2c of a furniture main body 2, and
The stopper portion 9a provided on the dead bolt 9 prevents the latch 6 from rotating in the releasing direction, and prevents the handle 3 from being released. In this state, the door 1 has the latch 6
Also, since the dead bolt 9 engages with the locking hole 2b and the insertion hole 2c of the furniture main body 2 and is locked at the closed position, the door 1 is less likely to bend even if the door 1 is vertically long, Security is improved.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention rotates the latch shaft by operating the handle provided on the door, and engages and disengages the latches connected to the upper and lower sides of the latch shaft with the locking holes of the furniture body, thereby restraining the door in the closed state. The present invention relates to a door locking device for furniture or the like that can be locked or released.

[0002]

[Prior art]

 In a conventional locking device for a door such as a locker, a latch provided at the upper and lower ends of the door engages with a locking hole of a furniture body such as a locker, so that the door can be locked in a closed state. The door can be opened by rotating the latch shaft by operating the handle provided on the surface and releasing the latches fixed to the upper and lower ends of the latch shaft from the locking holes.

[0003]

[Problems to be solved by the device]

 However, in the conventional locking device as described above, the movement of the door in the opening direction is restricted by engaging the latches provided at the upper and lower ends of the door with the locking holes of the furniture body. Therefore, the vicinity of the center of the door is in a free state, and in the case of a high-height locker door, the vicinity of the center of the door may be easily bent and the locked state may be released, which is preferable for crime prevention. There is a problem that it does not exist.

In view of the above-mentioned problems of the prior art, the present invention prevents the door from flexing in the locked state and can reliably maintain the locked state. It is intended to provide a locking device.

[0005]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a handle provided on a door pivotably attached to a furniture body and a ratchet shaft supported by the door so as to be rotatable by operating the handle. , Locking the door in furniture, etc., which is connected to the upper and lower sides of the latch shaft and has a latch that can lock and unlock the door in the closed state by engaging and disengaging the lock shaft in the furniture body. In the device, the door is provided with a cylinder lock provided with a dead bolt which can be engaged with and disengaged from an insertion hole provided in a middle portion of the furniture body by a key operation, and the dead bolt is engaged with the insertion hole. It is characterized by the provision of a stopper that prevents the latch from moving in the unlocking direction when in the locked position.

[0006]

[Action]

 When the cylinder lock is operated while the latch is engaged with the locking hole and the door is closed, the dead bolt engages with the insertion hole of the furniture main body and the stopper portion prevents the latch from rotating in the releasing direction. In this locked state, the stopper of the deadbolt blocks the rotation of the latch, which prevents the handle from being released, and the door prevents the latch and deadbolt from moving above and below the furniture body. Even if the door is long in the vertical direction, the middle part of the door is less likely to bend and the crime prevention is improved, even if the door is long in the vertical direction by engaging with the locking hole and the insertion hole of the middle part. .

[0007]

【Example】

 An embodiment of the present invention will be described below with reference to the drawings. (1) is a door pivotally attached to the furniture body (2) of the locker so as to be openable and closable by a door hinge, and a front plate (1a) of the door (1) has a handle for opening the door (1). Escussion (4) with (3) is attached.

The handle (3) connects the left ends of the horizontal rods (3c) of the upper, middle, and lower three stages extending to the left of FIG. 1 from the handle portion (3b) with the vertical rods (3d) directed in the vertical direction. In addition, the middle part of each horizontal rod (3c) is pivotally attached to the escutcheon (4) with the axis (3a) facing vertically.

(5) is a latch shaft that is vertically pivoted with a rectangular cross section and is pivotally supported by the door (1) vertically and by the escutcheon (4). Latch (6) having latching claws (6a) that can be engaged and disengaged integrally with locking holes (2b) (see FIG. 6) formed above and below the furniture body (2) facing the The tubular body (7) is fixedly fitted to the portion which is fixed as described above and which penetrates the handle (3). A first protrusion (7a) engageable with the vertical rod (3d) of the handle (3) is provided in the middle of a portion of the cylindrical body (7) which penetrates the upper half of the handle (3). (3) In the middle part of the part that penetrates the lower half part of the dead bolt (9), a second rearward projection that can be engaged with a stopper part (9a) formed by cutting and raising the central part of the dead bolt forward. The parts (7b) are each provided in a protruding manner.

(8) is a cylinder lock that is fixed to the escutcheon (4) and has a key lever (8b) that can be rotated by key operation on the back side, and (9) is provided on the back side of the cylinder lock (8). , A flat plate-like dead bolt that is movably supported in the left-right direction by the escutcheon (4) and can be engaged with and disengaged from the insertion hole (2c) provided in the middle part of the furniture main body (2), Has the above-mentioned stopper portion (9a) engageable with the second protrusion portion (7b) of the protrusion member (7).

The dead bolt (9) is inserted into a key hole (8a) provided on the front surface side of the key cylinder (8) and rotated to operate a pin (8c) protruding from the key lever (8b). ) And the hole (9b) formed in the dead bolt (9) and directed in the up-down direction, are moved in the left-right direction of the door (1), and the insertion hole (2c) of the furniture body (2) is moved. The locking position shown in FIG. 4 that engages with the door (1) to prevent the door (1) from moving in the opening direction, and the door (1) which is retracted by being disengaged from the insertion hole (2c) and opening the door (1). The unlocking position shown in FIG. 2 for releasing the restriction of the movement in the direction.

When the handle (3) is released from the state shown in FIG. 2 to the position shown in FIG. 3, the vertical rod (3d) of the handle (3) causes the first protrusion (7a) of the tubular body (7). 2, the latch shaft (5) is rotated counterclockwise in FIG. 2, and the latch (6) engaged in the locking hole (2b) of the furniture main body (2) is shown in FIG. Move from the position shown by the solid line to the release position shown by the chain double-dashed line, disengage the latch claw (6a) from the locking hole (2b), and free the door (1) to move in the opening direction. You can open the door (1).

When the latch claw (6a) of the latch (6) is engaged with the locking hole (2b) and the door (1) is in the closed state, the key (shown in the figure) is inserted into the key insertion hole (8a) of the cylinder lock (8). (Omitted) is inserted, and the key is rotated in a predetermined direction to perform the locking operation, the dead bolt (9) is moved to the left from the position shown in FIG. 2, and its tip is guided to the guide hole (1b) of the door (1). ), Engages with the insertion hole (2c) of the furniture body (2), and the stopper portion (9a) enters into the rotation locus of the second protrusion portion (7b) of the protrusion member (7), Rotation of the latch shaft (5) in the releasing direction is blocked.

In this locked state, since the ratchet shaft (5) is prevented from rotating by the stopper portion (9a) of the dead bolt (9), the handle (3) can be released. Blocked and unable to open door (1). In addition, the door (1) is in the closed position because the upper and lower latches (6) and the central dead bolt (9) engage with the locking hole (2b) and the insertion hole (2c) of the furniture body (2). Since it is locked, even if the door (1) is long in the vertical direction, the center of the door (1) does not bend and the anti-theft property can be improved.

When the key is inserted into the key insertion hole (8a) of the cylinder lock (8) and the unlocking operation is performed, the dead bolt (9) is disengaged from the insertion hole (2c), and the stopper portion (9a) is formed into a cylindrical body. The door (1) can be opened by releasing the handle (3) by unlocking it by retracting it from the rotation locus of the second protrusion (7b) of (7). Become.

[0016]

[Effect of device]

 As described above, according to the present invention, the door is provided with the cylinder lock provided with the dead bolt which can be engaged with and disengaged from the insertion hole provided in the middle part of the furniture main body by the key operation, and the dead bolt is provided with the cylinder lock. When the door is in the locked position engaged with the insertion hole, a stopper is provided to prevent the latch from moving in the unlocking direction. Therefore, even in the case of a long door, it is possible to prevent the central portion of the door from flexing and to reliably maintain the locked state, thus improving the crime prevention property.

[Brief description of drawings]

FIG. 1 is a front view of a main part of furniture to which the present invention is applied.

2 is a cross-sectional view taken along the line AA in FIG.

FIG. 3 is a cross-sectional view similar to FIG. 2 when a handle is operated.

FIG. 4 is a transverse sectional view similar to FIG. 2 when locked.

FIG. 5 is a schematic perspective view of a dead bolt.

6 is a cross-sectional view taken along the line BB in FIG.

FIG. 7 is an overall perspective view of a locker.

[Explanation of symbols]

 (1) Door (2) Furniture body (2b) Locking hole (2c) Insertion hole (3) Handle (3a) Shaft (3b) Handle (3c) Horizontal rod (3d) Vertical rod (5) Latch shaft ( 6) Latch (7) Cylindrical body (7a) First protrusion (7b) Second protrusion (8) Cylinder lock (9) Dead bolt (9a) Stopper

Claims (1)

[Scope of utility model registration request] 1. A handle provided on a door pivotably attached to a furniture main body so as to be openable and closable, a latch shaft supported by the door so as to be rotatable by an operation of the handle, and connected to the upper and lower sides of the latch shaft, A door locking device for furniture and the like, comprising a latch capable of restraining the door in a closed state and releasing the restraint by engaging and disengaging with the locking hole of the furniture body. A cylinder lock provided with a dead bolt that can be engaged and disengaged is provided in the insertion hole provided in the middle portion of the main body, and the latch is released when the dead bolt is in the locking position where the dead bolt is engaged with the insertion hole. A door locking device for furniture or the like, which is provided with a stopper for preventing movement in the direction.