JPH11141513A - Latch device for panel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a number of pieces of components and the cost by integrally molding a base for fixing a latch body to a panel, a claw body rotatable through a hinge part, and an elastic energization body located between the claw body and the base, and engaging the claw body with an engagement part by the energization force. SOLUTION: A claw body 53 of a latch main body which is integrally molded with a resin, is folded to a base 51 side through a hinge 52, and a projection 51c of the base 51 is fixed to an inner panel 4 by a proper means. When a slant face 53a of the claw body 53 is brought into contact with a front face 31a of an engagement part 31 and is sunk in a direction to press an elastic body 54, the slant face 53a is passed through a lower face 31b of the engagement part 31. Then an engagement recessed part 53c is pushed back by the elastic body 54 till it is brought into contact with the lower face 31b to be engaged with the engagement part 31, and a tongue piece 51d of the latch body is brought into contact with a contact piece 32 front face of a fitting, whereby the mounting of the panel 4 is completed. That is, the latch device can be formed only by mounting the engagement part 31 and the contact piece 32 on an existing base to form the latch body, and mounting the same on the panel 4, which reduces the manhour and the cost.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a panel latch device which can be suitably used when attaching a panel to a desk.

[0002]

2. Description of the Related Art With the rapid progress of office automation in offices in recent years, various devices have been devised to appropriately route and process wiring. As part of that, a wiring space is formed on the rear edge of the desk that extends in the width direction of the desk.
A wiring duct has been developed in which a wiring duct is arranged in this wiring space so that wiring of OA equipment used on a desk can be appropriately dropped into the wiring duct to be accommodated.

[0003] Such a wiring duct is usually shielded from the lower limb space by an inner panel or the like so as not to impair the appearance and comfort.

[0004]

By the way, conventionally,
In order to attach the inner panel, etc., the engagement supporting claws are provided at the upper ends of the left and right side edges of the panel supported at the lower ends of the left and right side edges, and the elastic holding portions are provided on the corresponding desk side, so that the engagement can be achieved. The latch device is constituted by the claw and the elastic holding portion, and when the inner panel is rotated until the upper end reaches a predetermined mounting position, the engaging claw of the latch device is tightly fitted to the elastic holding portion. In general, the inner panel can be attached to a desk. For this reason, it is necessary to attach a component for configuring the latch device to each of the panel side and the desk side, and there is a problem that the number of components and cost cannot be reduced.

[0005]

SUMMARY OF THE INVENTION In order to solve the above problems, an object of the present invention is to provide a latch device which can be constituted by a single component.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS That is, in the latch device of the present invention, a latch body is provided at the upper end of the left and right side edges of a panel supported at the lower end of the left and right side edges, and the latch body is provided at the panel mounting position. The latch body is detachably engaged with an engaging portion, wherein the latch body is fixed to a panel, and a claw rotatably connected to the base via a hinge portion. The body and an elastic biasing body that is located between the claw body and the base and that urges the claw body in the anti-bending direction from a position where the claw body is bent toward the base side are integrally formed. The claw body is configured to be able to engage with the engaging portion.

In the case of such a structure, after the latch body is manufactured and attached to the panel, the existing parts at the panel mounting position such as a desk are used, and the claw body engages with the parts. The latch device can be configured only by setting the engaging portion to be obtained. Therefore, it is possible to eliminate the waste of separately manufacturing and attaching two parts as in the related art.

[0008] A specific embodiment is one in which the elastic body has a leaf spring shape. In order to ensure accurate engagement of the claw body with the engagement portion, a restricting mechanism for regulating the behavior of the bent claw body within a certain rotation range is provided between the base and the claw body. Is desirable. The restricting mechanism includes an opening window provided on one of the side surface of the base and the side surface of the claw body facing each other, and a projection provided on the other, and the projection is movably engaged with the opening window. Are preferred.

It is preferable to use resin as the material of the latch body.

[0010]

An embodiment of the present invention will be described below with reference to the drawings. This desk, as shown in FIGS. 1-3,
The left and right legs 1 support the top plate 2. More specifically, the leg 1 includes a base 11 whose front and rear ends are supported by an adjuster 11a;
And a stay 13 extending substantially parallel to the base 11 from the upper end of the support 12 and using its upper surface 13a as a top plate mounting surface.
The base 11 and the support 12
And the stay 13 are rigidly connected to each other by an appropriate means. A stepped pin 13b whose upper part is larger in diameter than the bottom part protrudes from the top plate mounting surface 13a of the stay 13 at the rear end side, and a screw insertion hole 13c is provided at the front end side so as to penetrate vertically. ing. Further, a shaft 16 protrudes inward at a portion near the lower end of the column 12.

In the vicinity of the rear ends of the left and right stays 13, connecting projections 14 are rigidly connected to the sides facing each other, and the left and right ends of the square pipe-like connecting rod 15 are externally connected to these projections. It fits and connects the left and right legs 1 in a gate shape.
On the other hand, the top plate 2 has a pin 1
At the position corresponding to the hole 3b and the screw insertion hole 13c.
And a screw hole 22. First, the pin 13b is inserted into the large diameter portion of the polishing hole 21 to make the rear end side of the top plate 1 engage with the stay 13 first, and then the top plate 2 At the position where the screw hole 22 is aligned with the screw insertion hole 13c, a screw (not shown) inserted into the screw insertion hole 13c from below the stay 13 is screwed into the screw hole 22 of the top plate 2. The top plate 2 is attached to the leg 1.

In such a configuration, in this embodiment, a support 3 made of a material such as aluminum die-cast for fixing an optional member is fixed to the back surface of each of the left and right legs 1. As shown in FIG. 4, a rectangular columnar engaging portion 31 and an engaging piece 32 are protruded inward from two inner surfaces, and the latch portion 5 attached to the inner portion 4 and the engaging portion 31 The latch device A is constituted, and the lower end 4 of the left and right side edges 41 is formed by the latch device A.
The upper end 41b of the left and right side edges 41 of the inner panel 4 supporting the leg 1a on the leg 1 can be detachably attached to the panel mounting position on the inner surface of the leg 1.

The inner panel 4 has bent portions 42, 43, 44 at an upper edge, a lower edge and left and right side edges of a rectangular sheet metal material.
The width is set to be substantially equal to the inner dimension between the left and right legs 1, and the vertical dimension is set to be slightly shorter than that of the column 12. A resin cap 45 is attached to a corner near the lower end 41a of both side edges 41 of the inner panel 4, and a hole 45a that opens on the lower surface and the side surface is formed in the resin cap 44.

On the other hand, as shown in FIGS. 4 to 8, the latch body 5 is formed by integrally molding a base 51, a hinge portion 52, a claw body 53, and an elastic urging body 54 with resin. Have been. The base 51 has an upright wall 51b provided on an opposite edge of a bottom plate 51a, and has a rectangular column-shaped projection 51c and a thin plate-shaped tongue piece 51d extending downward from the bottom plate 51a. A claw 51c1 protrudes outward at a position opposite to the protrusion 51c.

The claw body 53 is rotatably connected to one end of the base 51 via a resin hinge 52 serving as a hinge portion. The claw body 53 has a mountain-shaped slope 53a on the surface facing upward in the use position. , 53b, and an engaging recess 53c is formed between the slopes. The elastic urging member 54 is provided on the base 5.
1 is a leaf spring projecting obliquely upward from the bottom plate 51a. When the claw body 53 is bent toward the base 51, the tip is elastically contacted with the lower surface 53e of the claw body 53 as shown in FIG. By the urging force, the claw body 53 can be elastically urged in the anti-bending direction.

A restricting mechanism 6 is provided between the base 51 and the claw body 53 to restrict the behavior of the bent claw body 53 within a certain rotation range. The restricting mechanism 6 includes an opening window 61 provided on a side surface 51 b of the upright wall 51 of the base 5 facing each other.
And a projection 62 provided on the side surface of the claw body 53. The projection 62 is movably engaged with the opening window 61.

Next, a procedure for attaching the inner panel 4 between the left and right legs 1 in the lower leg space of the desk using the latch device will be described. First, the latch body 5 in a state where the claw body 53 is folded toward the base 51 and the protrusion 62 is engaged with the opening window 61 to form the limiting mechanism 6 is attached to the inner panel 4 in a state shown in FIG. The attachment is performed by inserting the projection 51c hanging from the base 51 of the latch body 5 into the bent portion 42 of the inner panel 4 and fixing it by an appropriate means. At this time, the tongue piece 51d is set in a dimensional relationship that can be attached to the face plate portion of the inner panel 4. Then, a hole 45a opening from the lower edge to the side edge of the inner panel 4 is put on the shaft 16 protruding from the inner surface side of the column 12 of the leg 1 to support the lower ends 41a of the left and right edges of the inner panel 4. The upper end of the inner panel 4 is rotated in the upright direction with the shaft 16 as a fulcrum. As a result, when the latch body 5 of the inner panel 4 approaches the engaging portion 31 of the leg 1 as shown in FIG. 9, the inclined surface 53a of the claw body 53 comes into contact with the front surface 31a of the engaging portion 31. The elastic body 54 and the projection 62
After the inclined surface 53a passes through the lower surface 31b of the engaging portion 31 in a state of being moved downward, that is, in the bending direction, the engaging concave portion 53c is moved to the lower surface 31 of the engaging portion 31.
The elastic body 54 pushes the elastic member 54 back in the anti-bending direction until it comes into contact with the engaging portion 31. Then, the mounting of the inner panel 4 at the predetermined mounting position is completed. When removing the inner panel 4, the inner panel 4 can be easily disengaged from the engagement portion 31 by pressing the slope 53 b facing the lower limb space side with a finger to cause the claw 53 to enter the base 51 side. be able to.

With such a configuration, the engaging portion 31 and the abutting portion 32 are provided by using the existing support member 3 at the panel mounting position, and the latch body 5 is manufactured to form the inner panel. 4, the latch device can be constructed. For this reason, it is possible to eliminate the waste of separately manufacturing and attaching the two parts to the panel and the desk side as in the related art, and it is possible to effectively reduce man-hours and costs.

In particular, the elastic body 54 is formed in a leaf spring shape,
Since all the components for performing the latch operation including this elastic body 54 are integrally formed of resin, the production can be simplified while securing the effective latch operation.
Further, between the base 51 and the claw body 53, the bent claw body 53 is provided.
The restricting mechanism 6 for restricting the behavior of the claw body 53 to a certain rotation range is provided. Therefore, even if the bending mechanism is formed in such a manner, the proper engagement operation of the claw body 53 with the engagement portion 41 can be ensured.

The restricting mechanism 6 also has an opening window 6 on the base 51 side.
1 and the projection 62 on the claw body 53 side only suffices. The specific configuration of each part is not limited to the above-described embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0021]

The present invention is embodied in the form described above and has the following effects. That is, the latch device of the present invention supports the lower ends of the left and right side edges of the panel and detachably engages the latch body provided at the upper ends of the left and right side edges with the engaging portions provided at the panel mounting position. The latch body is formed by integrally molding a base, a hinge portion, a claw body, and an elastic urging body so that a predetermined latch operation can be performed.

For this reason, the latch device can be constructed simply by setting the engaging portion to an existing part or the like at the mounting position and mounting the latch body formed by integral molding to the panel. An excellent effect is obtained that the man-hour and cost required for the latch device can be reliably reduced. In particular, if the elastic body is made of a leaf spring, an effective latch operation can be ensured, and the production can be simplified.

Further, by providing a restricting mechanism between the base and the claw body for restricting the behavior of the bent claw body within a certain rotation range, even if the claw body is formed by bending a resin or the like, it is possible to prevent the claw body from being engaged. An accurate engaging operation of the claw body can be ensured. The limiting mechanism also has an opening window on one of the base and the claw body,
If a projection is provided on the other side, a simple configuration can be achieved.

[Brief description of the drawings]

FIG. 1 is a perspective view of a desk to which an embodiment of the present invention is applied.

FIG. 2 is an exploded perspective view of the same.

FIG. 3 is a longitudinal sectional view of the same.

FIG. 4 is an enlarged perspective view of a main part showing an attached state of the inner panel in the embodiment.

FIG. 5 is an exemplary perspective view showing the latch body of the embodiment in an expanded state;

FIG. 6 is a plan view of the same.

FIG. 7 is a front view of the same.

FIG. 8 is a sectional view of the same.

FIG. 9 is an explanatory view of the operation.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 4 ... Inner panel 5 ... Latch main body 6 ... Restriction mechanism 31 ... Engagement part 41 ... Side edge 41a ... Side edge lower end 41b ... Side edge upper end 51 ... Base 52 ... Hinge part 53 ... Claw body 54 ... Elastic biasing body 61 … Opening window 62… Protrusion

Continuing on the front page (72) Inventor Kenji Yokoo 6-1-1, Oimazato-minami, Higashi-Nari-ku, Osaka-shi Inside Kokuyo Co., Ltd. (72) Inventor Toruichi Niizuma 184-1, Maioka-cho, Totsuka-ku, Yokohama-shi, Kanagawa, Inc. Nifco

Claims (5)

[Claims] A latch body is provided at an upper end of a left and right side edge of a panel supported at a lower end of the left and right side edge, and the latch body is detachably engaged with an engaging portion provided at a panel mounting position. A main body fixed to a panel; a claw body rotatably connected to the base via a hinge portion; and a latch body between the claw body and the base. An elastic biasing body that biases the claw body in the anti-bending direction from a position where the claw body is bent toward the base side is integrally formed, and the claw body is engaged with the engaging portion by the biasing force of the elastic biasing body. A latch device for a panel, characterized in that the panel latch device is configured to obtain the same. 2. The panel according to claim 1, wherein the elastic body has a leaf spring shape. 3. A panel latch according to claim 1, further comprising a limiting mechanism provided between the base and the claw body for restricting a behavior of the bent claw body within a predetermined rotation range. apparatus. 4. A restricting mechanism comprising an opening window provided on one of a side surface of a base and a side surface of a claw body facing each other, and a projection provided on the other side, and the projection can be freely moved to the opening window. The panel latch device according to claim 3, wherein the latch device is engaged. 5. The panel latch device according to claim 1, wherein the latch body is made of resin.