JP2506455Y2 - Furniture latch mechanism - Google Patents

Description

[Detailed Description of the Invention] [Industrial application] The present invention relates to a furniture latch mechanism that can be suitably used for furniture having a front opening / closing member such as a drawer end plate or a door.

[Prior Art] When a latch mechanism is provided in this type of furniture, the main part of the mechanism is incorporated inside the drawer end plate or door that is the front opening / closing member. That is, the latch mechanism includes a rotating arm having a latch claw or a locking hole at the tip,
An operation plate and the like connected to the rotating arm via a link mechanism and the like are provided, and the rotating arm, the link mechanism, the operation plate, and the like are all housed inside the end plate and the door. Then, by manually operating the operation plate to rotate the rotating arm, the latch claw or the locking hole is disengaged from the locking hole or the locking piece provided in the furniture main body, and the drawer or door is pulled out. Can be opened.

[Problems to be solved by the invention] However, in such a configuration, since the front opening / closing member has the rotating arm, the link mechanism, etc. built therein as described above, it is necessary to secure a space for disposing these. Therefore, the front opening / closing member is relatively thick. For this reason,
In the drawer, the end plate has a large thickness, which causes a decrease in storage efficiency. In addition, such a structure requires a link mechanism or the like for converting an operation applied to the operation plate into a rotary motion of the rotary arm, so that the structure is complicated.

Further, when the front opening / closing member is provided with the rotating arm, the operation plate, etc., it becomes difficult to provide the locking mechanism in association with these. That is, since the lock of the locking mechanism is provided on the furniture body, it is difficult to engage with the latch mechanism. Therefore, the latch mechanism and the locking mechanism are arranged independently of each other, which causes an increase in the number of parts.

An object of the present invention is to provide a furniture latching mechanism that can eliminate such inconveniences at once.

[Means for Solving the Problem] The present invention takes the following means in order to achieve the above object.

That is, a furniture latching mechanism according to the present invention comprises a pair of rotating arms pivotally attached to a furniture body, and an operating plate provided on a front opening / closing member held by the furniture body. In the mechanism, the rotating arm is for engaging the latch claw provided at the tip end with the latching hole of the front opening / closing member to latch the front opening / closing member at the closed position. The claws are pivotally attached to the furniture main body so as to be rotatable in a direction in which the claws come into contact with and separate from each other, and the operation plate is arranged so as to be manually operable in an operation hole of a front opening / closing member which is continuous with the hook hole. , The operating plate is temporarily interrupted between the distal ends of the rotating arms to expand both distal ends,
The latch claw is disengaged from the hook hole, and the front opening / closing member can be operated as it is through the operation plate to move the furniture main body to a position where it is opened.

When the furniture is provided with a locking mechanism, a lock arm is rotatably disposed between the base ends of the rotary arms, and the lock arm is rotatably operated by a lock provided on the furniture main body. May be brought into contact with or separated from the base end of the rotating arm.

Examples of the front opening / closing member include a drawer end plate and a door.

[Operation] With such a configuration, when the front opening / closing member is moved to the closed position, the latch pawls are temporarily opened after the distal end portion of the rotating arm is opened. Engagement causes the front opening / closing member to hang at the closed position.
When the front opening / closing member is opened, if the operation plate is manually operated to be interrupted between the distal ends of the rotating arms, the distal ends of the rotating arms widen in the directions away from each other and the latch claws are engaged. The engagement with the stop hole is released, the latch claw can be disengaged from the hook hole, and the front opening / closing member can be moved to the open position through the operation plate as it is.

Further, when a lock arm is arranged between the base ends of both the rotation arms and the lock arm is rotated by a lock, when the lock claw is engaged with the locking hole, When both ends are brought into contact with the base end, the rotation of the rotation arm is prevented. In that case, even if the operation plate is operated, the tip portion of the rotating arm cannot be expanded. That is, the front opening / closing member is locked.

[Embodiment] An embodiment of the present invention will be described below with reference to the drawings.

The latch mechanism 1 includes a pair of rotating arms 3 pivotally attached to a furniture body 2 and an operation plate 5 provided on an end plate 41 of a drawer 4 as a front opening / closing member.

As shown schematically in FIG. 4, the furniture main body 2 is provided with left and right side plates 21, a top plate 22, a back plate (not shown), etc., and a box built in the front edge of the top plate 22. The rotating arm 3 is disposed in the 23.

The end plate 41 of the drawer 4 has locking holes 42 inside the upper edge portion thereof, and also has operation holes 43 continuous with the locking holes 42.

The rotating arms 3 are arranged on both sides of the box 23 with the latch claws 3b provided on the tip end 3a thereof facing each other, and the middle of the front-rear direction is pinned at the bottom of the box 23 via a pin 31. It is pivotally attached to the wall 23a so as to be rotatable in the direction of coming in and out of contact with each other. A tip portion 3a of each rotating arm 3 is projected to the outside from a latch hole 22a opened on the front surface of the top plate 22, and a downward taper surface 3c is formed on the lower surface and an inward taper surface 3d is formed on the front surface.
Are formed respectively. The base end portion e of each rotating arm 3 is urged toward the side wall 23b of the box 23 by a tension coil spring 32.

The operation plate 5 is held in grooves (not shown) provided on both sides in the operation hole 43 so as to be capable of moving up and down in the vertical direction. On both sides of the upper end 5a, upward taper surfaces 5b are provided as shown in FIG. Has been formed. The upward taper surfaces 5b are arranged close to and opposed to the downward taper surface 3c of the rotating arm 3, respectively.

Further, a lock arm 6 is arranged between the base ends 3e of the rotating arm 3, and the lock arm 6 is rotated by a lock 7.

The lock arm 6 is pivotally attached to the bottom wall 23a of the box 23 through a pin 61 in the middle in the left-right direction, and the left and right ends 6a thereof are brought into contact with and separated from the base end portion 3e of the rotation arm 3. I am trying.

The lock 7 is attached to the front edge portion of the top plate 22, and the lock 7 and the pin 61 are connected via a pair of bevel gears 6b and 7a. When the lock 7 is operated, as shown by the solid line in FIG. 1, both ends 6a engage with the base end portion 3e of the rotating arm 3, respectively, and both ends are shown by phantom lines in FIG.
The lock arm 6 is adapted to rotate between the unlocking position where the 6a is separated from the base end 3e.

With such a structure, when the drawer 4 is moved to the closed position, the inward taper surface 3d of the rotating arm 3 comes into contact with the opening edge of the hooking hole 42, respectively.
After the tip 3a of the
It engages with 42 to lock the drawer 4 in the closed position. When the drawer 4 is opened, if the finger 8 is inserted into the operation hole 43 and the operation plate 5 is pushed up, the upward taper surface 5b and the downward taper surface 3c of the rotary arm 3 guide each other,
The upper end 5a of the operation plate 5 is cut into between the tip end portions 3a of the rotating arm 3, and both tip end portions 3a spread apart in a direction away from each other.
The engagement state between the latch claw 3b and the latch hole 42 is released. When the drawer 4 is pulled from that state, the latch claw 3b is locked by the latch hole 42.
The drawer 4 can be opened while being separated from.

Further, in a state where the drawer 4 is moved to the closed position and the latch claw 3b is engaged with the locking hole 42, the lock 7 is operated to move both ends 6a of the lock arm 6 to the base end 3e of the rotating arm 3. When they are engaged with each other, the rotation of the rotation arm 3 is blocked. In that case, even if the operation plate 5 is operated, the tip portion 3a of the rotating arm 3 is
Cannot be expanded and the latched state by the latch claw 3b is maintained. That is, the drawer 4 is locked.

Therefore, in the case of the latch mechanism 1 having the above-described configuration, the operation plate 5 may be built in the end plate 41 of the drawer 4 so as to be able to move up and down while being fitted inside the end plate 41. It can be made thin, and the storage efficiency of the drawer 4 can be effectively increased. Moreover, with such a structure, since the rotating arm 3 can be directly rotated by the operation applied to the operation plate 5, a link mechanism or the like for changing the direction of the operation force is unnecessary. Yes, the structure can be relatively simple.

Further, if the latch mechanism 1 is configured as described above, the drawer 4 can be locked easily and reliably by using the rotating arm 3 as described above, and a part of the latch mechanism 1 can be used as a locking mechanism. Can also be used effectively. Therefore, the number of parts can be surely reduced, and the cost can be easily reduced, as compared with the conventional one in which the special locking mechanism and the latch mechanism are provided separately.

In the above-mentioned embodiment, the case of furniture having a drawer is described, but the present invention can be effectively applied to a furniture having a door. Here, when the operation plate is provided on the upper end side of the door, a rotating arm or the like is arranged in the same manner as in the above-mentioned embodiment, and when the operation plate is slid laterally on the anti-wing attachment portion of the door. The two rotating arms are arranged in the front-rear direction with the vertical positions being different from each other, and are pivotally attached so as to be rotatable in the vertical direction.

[Advantage of the Invention] Since the present invention is configured as described above, the thickness of the front opening / closing member provided on the furniture can be surely reduced to effectively enhance the storage efficiency of the furniture, and the front opening / closing member can be effectively used. It is possible to reduce the number of parts by simplifying the structure of the latch mechanism for hooking at the closed position.

Further, when a lock arm is arranged between the rotating arms of the latch mechanism and the lock arm is rotated by a lock provided on the furniture body, the front opening / closing member is utilized by using the rotating arm. Since it can be locked at the closed position, the number of parts can be surely reduced and the structure of the locking mechanism can be simplified as compared with the case where the latch mechanism and the locking mechanism are separately provided.

[Brief description of drawings]

The drawings show one embodiment of the present invention. FIG. 1 is a plan sectional view, FIG. 2 is a front view, FIG. 3 is a side sectional view, and FIG. 4 is a perspective view. 1 ... Latch mechanism, 2 ... Furniture body 3 ... Rotating arm, 3a ... Tip part 3b ... Latch claw, 3e ... Base part 5 ... Operation plate, 6 ... Lock arm 6a ... Both ends , 7: Lock 41: Front opening / closing member (drawer end plate) 42: Locking hole, 43: Operation hole

Continuation of the front page (56) References JP-A-3-206274 (JP, A) Actual exploitation Sho 57-155264 (JP, U)

Claims (4)

(57) [Scope of utility model registration request] 1. A furniture latch mechanism comprising a pair of rotating arms pivotally mounted on a furniture body and an operation plate provided on a front opening / closing member held on the furniture body. The arm is for engaging the latch claw provided at the tip end with the latching hole of the front opening / closing member to latch the front opening / closing member in the closed position, and the latch claws come into contact with and separate from each other. Is pivotally attached to the furniture main body so as to be rotatable in any direction, and the operation plate is disposed in the operation hole of the front opening / closing member continuous with the hook hole so as to be manually operable. By temporarily interrupting between the tips of the moving arm and expanding both tips, the latch claws are released from the hook holes, and the front opening / closing member is operated directly via the operation plate to open the furniture main body. The furniture rack is characterized in that it can be moved to any desired position. Ji mechanism. 2. A lock arm is rotatably arranged between the base ends of the rotary arm, and the lock arm is rotated by a lock provided on the furniture main body, and both ends of the lock arm are rotated. The furniture latching mechanism according to claim 1, wherein the latching mechanism is adapted to be brought into contact with and separated from the base end portion. 3. The furniture latching mechanism according to claim 1, wherein the front opening / closing member is a drawer end plate. 4. The furniture latching mechanism according to claim 1, wherein the front opening / closing member is a door.