JP2508736Y2 - 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, the furniture latching mechanism according to the present invention is a furniture latching mechanism including a rotating arm pivotally mounted on the furniture body and an operation plate provided on a front opening / closing member held by the furniture body. The turning arm is for engaging the latch claw provided at the tip end with the hooking hole of the front opening / closing member to lock the front opening / closing member in the closed position. The operation plate is movably pivotally mounted, is held so as to be able to move forward and backward in the rotation direction of the latch claw, and is manually operable in the operation hole of the front opening / closing member continuous with the latch hole. By directly pressing the latch claw with the operation plate to pivotally retract the pivot arm,
The latch claw is disengaged from the hook hole, and the front opening / closing member can be moved to the position for opening the furniture main body through the operation plate as it is.

When the furniture is provided with a locking mechanism, a lock arm is arranged on the side where the rotary arm is rotated and retracted, and the lock arm is rotated by a lock provided on the furniture main body, and the tip of the lock arm is rotated. It is advisable to bring the moving arm into contact with and separate from the end surface on the side of turning and retracting.

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 claw is temporarily locked in the hooking hole of the front opening / closing member after the tip of the rotating arm is temporarily rotated. Engagement causes the front opening / closing member to hang at the closed position.
When the front opening / closing member is opened, if the distal end portion of the rotating arm is rotated and retracted by manually operating the operation plate, the engagement between the latch claw and the latch hole is released and the latch claw is released. The front opening / closing member can be moved to the position where the furniture main body is opened through the operation plate as it is. However, in this device, the forward / backward direction of the operating plate and the rotating direction of the latch claw are made to coincide with each other, and the latch claw is directly pressed by this operating plate. Therefore, no cam, link, or the like for converting the pressing force of the operation plate in different directions is required, and reliable and smooth operation can be performed with a simple configuration.

Further, when the lock arm is arranged on the side where the rotary arm is rotated and retracted, and the lock arm is rotated by a lock provided on the furniture main body, the latch claw is engaged with the locking hole. In this state, when the tip of the lock arm is brought into contact with the end surface of the rotary arm on the rotary retract side, the rotary arm is prevented from rotating. In that case, even if the operation plate is operated, the engagement state between the latch claw and the latch hole cannot be released.
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 rotating arm 3 pivotally attached to a furniture body 2 and an operation plate 5 provided on an end plate 41 of a drawer 4, which is 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 all the edges of the top plate 22. The rotating arm 3 is disposed in the 23.

The end plate 41 of the drawer 4 has a hook hole 42 inside the upper edge portion thereof, and an operation hole continuous with the hook hole 42.
Has 43.

The rotating arm 3 is arranged in the middle portion of the box 23 with the latch claw 3b provided on the tip portion 3a facing downward, and the base end portion 3c is provided on the side wall of the box 23 via the pin 31. It is pivotally attached to 23a so that the tip 3a side can be rotated in the vertical direction. The tip 3a of the rotating arm 3 is a top plate.
A latch hole 22a opened in the front surface of 22 is projected to the outside, and a downward taper surface 3d is formed on the lower surface thereof. Further, a torsion coil spring 32 is provided on the proximal end 3c side of the rotating arm 3 to urge the distal end 3a side downward.

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, and has an upper end.
Compression coil springs 51 arranged on both sides of 5a elastically bias downward. The upper end 5a is bent in the horizontal direction and is brought close to directly below the latch claw 3b.

Further, the lock arm 6 is arranged on the side where the rotation arm 3 is rotated and retracted against the biasing force of the coil spring 32, that is, on the upper side, and the lock arm 6 is rotated by the lock 7. There is.

The lock arm 6 has a base end 6a fixed to the tip of the lock 7 and is configured to rotate integrally with the tip.

The lock 7 is attached to the front edge of the top plate 22, and when the lock 7 is operated, the tip 6b of the lock arm 6 contacts the upper end surface 3e of the rotating arm 3 as shown in FIG. The lock arm 6 is configured to rotate between a contacting lock position and a non-locking position where the tip 6b is separated from the upper end surface 3e.

With such a configuration, when the drawer 4 is moved to the closed position, the downward taper surface 3d of the rotating arm 3 comes into contact with the opening edge of the hooking hole 42, so that the tip portion of the rotating arm 3 is in contact.
After the 3a is temporarily rotated upward and retracted, the latch claw 3b engages with the latch hole 42 to latch the drawer 4 in the closed position. When opening the drawer 4, insert the finger 8 into the operation hole 43 and push up the operation plate 5, and the upper end 5a of the operation plate 5 is latched.
By pushing up 3b, the engagement state between the latch claw 3b and the latch hole 42 is released. When the drawer 4 is pulled from this state, the latch claw 3b is released from the hook hole 42 and the drawer 4 can be opened.

Further, with the drawer 4 moved to the closed position and the latch claw 3b engaged with the locking hole 42, the lock 7 is operated to bring the tip 6a of the lock arm 6 into contact with the upper end surface 3e of the rotating arm 3. When contacted, 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 cannot be rotated upward, 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, the rotating arm 3 can be directly rotated by the operation of applying to the operation plate 5, so that a cam, a link mechanism or the like for changing the direction of the operation force can be provided. It is unnecessary and can be relatively simple in structure.

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. Will pivotally pivot the pivot arm laterally.

[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. In particular, in the present invention, since the latch claw can be directly pressed by the operation plate without changing the direction of the force, no complicated mechanism is required at all, and a simple structure ensures reliable and smooth operation. Is something that can be done.

When the lock arm is arranged in the direction in which the rotation arm of the latch mechanism rotates and the lock arm is rotated by a lock provided on the furniture body, the rotation arm is used. Since the front opening / closing member 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]

1 is a side sectional view, FIG. 2 is a plan sectional view, FIG. 3 is a front view, and FIG. 4 is a perspective view of furniture. DESCRIPTION OF SYMBOLS 1 ... Latch mechanism, 2 ... Furniture body 3 ... Rotating arm, 3a ... Tip part 3b ... Latch claw, 3c ... Base end part 3e ... Rotation direction end surface 5 ... Operation plate, 6 ... Lock arm 6a ... Tip, 7 ... Lock 41 ... Front opening / closing member (drawer end plate) 42 ... Hooking hole, 43 ... Operation hole

Claims (4)

(57) [Scope of utility model registration request] 1. A furniture latching mechanism comprising a rotating arm pivotally mounted on a furniture body and an operation plate provided on a front opening / closing member held on the furniture body, wherein the rotating arm comprises: A latch claw provided at a tip end is engaged with a hooking hole of the front opening / closing member to lock the front opening / closing member in a closed position, and is pivotally attached to the furniture main body. The operation plate is held so as to be able to advance and retreat in the rotation direction of the latch claw, and is disposed in the operation hole of the front opening / closing member continuous to the hook hole so as to be manually operable. By directly pressing the latch claw to retreat the rotary arm, the latch claw is disengaged from the hook hole, and the front opening / closing member is directly moved to the position where the furniture main body is opened through the operation plate. Of furniture characterized by being able to move Pitch mechanism. 2. A lock arm is arranged on the side where the rotary arm is rotated and retracted, and the lock arm is rotated by a lock provided on the furniture main body, and the tip thereof is rotated and retracted by the lock arm. The latch mechanism for furniture according to claim 1, wherein the latch mechanism is adapted to be brought into contact with and separated from an end face on the side. 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.