JPH0742339Y2 - Lock device for slide rail - Google Patents

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a slide rail locking device used when a drawer is mounted on a cabinet such as a desk so that it can travel.

[0002]

2. Description of the Related Art As is known, as a slide rail, as shown in FIG. 4, a cabinet member d and a drawer member e are slidably extended on both front and back surfaces of an intermediate member a via retainers b and c, respectively. It is known that the lock device can be freely combined, and in the lock device thereof, a swing plate f swinging in the width direction is provided at one end of the intermediate member a as shown in FIG. The free end of the oscillating plate f is urged and supported toward one side in the width direction (downward in the drawing) by a coil spring g provided on the end face side of one end of the intermediate member a.

In this biased and elastically held state, the engaging piece h formed at the free end of the rocking plate f is the intermediate member a.
When the cabinet member d slides and is in the extended state, the storage is blocked by engaging with the stopper i provided at the end of the cabinet member d. By the slide, the pressing piece j formed at the end portion of the drawer member e pushes the swinging plate f to the other side in the width direction (upward in the drawing) against the biasing elastic force of the coil spring g. There is known a structure in which the engagement with the stopper i is released to allow the member and the cabinet member d to be reduced in size.

[0004]

However, in the lock mechanism in the above-mentioned conventional slide rail, the rocking plate f is
The intermediate member a is elastically attached to the side surface k ′ of the protrusion k of the retainer c by the biasing force of the coil spring g.
When the cabinet member d slides and expands and contracts, the rocking plate f and the side surface k'become in a sliding friction state with each other, so that the retainer c rubs or the friction resistance causes the intermediate and cabinet members. a,
The slide operation of d becomes heavy, which hinders smooth withdrawal and storage operations.

Also, since the coil spring g is compressed and assembled at its end by being hooked on the intermediate member a and the swing plate f, the workability of the assembly is poor, and it takes time and labor to produce. There are problems such as high cost.

The present invention has been made in view of various problems of the above-mentioned conventional locking device, and makes the sliding operation smooth and light by minimizing the influence of the rotating lever on other members. It is possible to reduce the number of components, improve the workability of assembly, improve productivity, and reduce costs.
That is the purpose.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a slide rail in which a cabinet member and a drawer member are slidably attached to both sides of a middle member via retainers so as to be extendable. , On one side of the above middle member,
On the slide locus of the drawer member, a pivoting lever that pivots in the width direction is pivotally mounted, and the pivoting lever has a base end portion and a tip end portion each having a contact portion and an engaging portion. When the member and the intermediate member are extended, the abutting portion comes into contact with the abutting portion formed on the retainer so that the turning lever can be pushed and turned in one direction of the width direction, and the engaging portion is , The stopper is formed on the cabinet member so that the contraction can be prevented, and when the drawer member slides in the contraction direction, the pressing piece formed at the end of the drawer member causes the rotation lever to move the width. Another object of the present invention is to provide a lock device for a slide rail that can be pushed and rotated in the other direction to release the engagement with the stopper.

[0008]

[Function] The drawer is attached to the cabinet by fixing the cabinet member to the inner surface of the side plate of the cabinet such as a desk and the drawer member to the side surface of the drawer in the front-rear direction by fixing with screws or the like in a horizontal direction. It is attached so that it can be pulled out and stored freely. When the drawer is pulled out, the drawer member and the intermediate member are not provided with a mechanism such as a catch mechanism for integrating them, so that the movement of both members becomes an irregular slide.

As the drawer investigation proceeds, the middle member slides against the cabinet member,
When the position immediately before the end of the drawer is reached, the contact portion at the base end of the rotating lever comes into contact with the contact portion projecting on the retainer between the intermediate and cabinet members, and the rotating lever attaches its shaft attachment portion. It is rotated counterclockwise around the center, and the engaging piece at the tip end engages with the stopper provided on the cabinet member, whereby the middle member is locked to the cabinet member, the contraction is blocked, and the drawer is pulled out. It is held in that position.

As the drawer is pushed in, the intermediate member is locked to the cabinet member as described above, so that the drawer member is pushed in with respect to the intermediate member, and the pressing piece at the tip of the drawer lowers the rotation lever. When the lever contacts the edge, the lever is rotated in the clockwise direction, whereby the engaging piece at the tip of the rotating lever is disengaged from the stopper of the cabinet member, the cabinet member and the intermediate member are unlocked, and the intermediate member is moved to a predetermined position. It is pushed to the position and stopped, and the drawer is stored in the cabinet.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail with reference to the illustrated embodiment. FIGS. 3A, 3B, 3C and 3D show a cabinet member, a retainer, an intermediate member and a rotary lever.
It is each perspective view which notched and showed a drawer member partially. Slide rail A shown in FIGS.
Is a structure in which a cabinet member 2 and a drawer member 3 each made of a horizontally long strip are respectively joined to the front and back surfaces of an intermediate member 1 made of a horizontally long strip so that they can be expanded and contracted by sliding in the longitudinal direction via retainers 4 and 5. In this respect, it is the same as the conventional one.

FIG. 1 shows a state in which the intermediate member 1 is pushed into the cabinet member 2 in a partially cutaway view, and a side surface in which both members 1 and 2 are locked in an extended state and a side surface for unlocking. Figure 2 (A)
As clearly shown in (B), on the back surface (drawer member 3) side of one end of the intermediate member 1, the width direction of the intermediate member 1 (vertical direction in FIGS. 1 and 2A and 2B). A rotatable lever 6 is pivotally supported by pivotally attaching a base end 6a thereof with a screw shaft 7 or the like. The free end 6b of the rotary lever 6 extends toward the one end 1a side of the intermediate member 1, the base end 6a side has a contact part 6c with an abutting part to be described later, and the tip end side thereof. An engaging portion 6d that is locked by a stopper described later is formed.

That is, the abutting portion 6c and the engaging portion 6d
Is a plate-shaped rotary lever 6, and its upper side is formed at a rear end and a front end of an upper edge 6e formed by bending the cabinet member 2 toward the cabinet member 2 side substantially horizontally. The lower end of the rotating lever 6 is inclined downward from the base end 6a to the front end 6b so that the base end 6a is narrow and wide toward the front end 6b. A pushing-up portion 6f is provided which is bent substantially at a right angle to the member 3 side and is inclined and descends from the base end 6a side to the tip end 6b side.

The upper edge 6e of the rotating lever 6 is inserted from the window hole 1b formed in the intermediate member 1 to the cabinet member 2.
When the intermediate member 1 and the cabinet member 2 are contracted, the upper surface 4b of the protruding portion 4a formed in the longitudinal direction of the central portion of the retainer 4 and the upper and lower surfaces thereof are arranged vertically when the intermediate member 1 and the cabinet member 2 are contracted. Are separated and faced to each other.

The cabinet member 2 includes the same member-
2 and the intermediate member 1 in the extended state, they engage with the engaging portion 6d of the rotating lever 6 and the members 2, 1
Is provided with a stopper 2a for preventing the contraction from being reduced. As shown in FIG. 3 (A), what is shown as the stopper 2a is
Although the cabinet member 2 itself is cut and raised, it may be formed by fixing another member (not shown) to the inner surface of the cabinet member 2, and in any case, it does not interfere with the retainer 4. As shown in FIG.

The retainer 4 is provided with an abutting portion 4c on the upper side surface 4b of the protrusion 4a by cutting and raising. The abutting portion 4c is provided when the intermediate member 1 and the cabinet member 2 are in an expanded state,
The contact portion 6c of the rotation lever 6 is brought into contact with the rotation lever 6 and is provided for rotating the rotation lever 6 in the counterclockwise direction as shown in FIG. Part 6
d is engaged with the stopper 2a.

Therefore, the intermediate member 1 is pulled out from the cabinet member 2, and immediately before the pulling-out is finished, the rotating lever 6 is rotated to be engaged with the stopper 2a. The positional relationship between 4c and the stopper 2a is preset.

The front portion of the protrusion 4a of the retainer 4 where the contact portion 4c is formed, that is, the left side portion of the contact portion 4c in FIGS. 1 to 3B is missing. It is a removing portion 4d, which allows the rotating lever 6 to rotate.

The drawer member 3 has, at its lower end,
The pressing piece 3a of the rotation lever 6 is bent inward, and the drawer member 3 is contracted in the contracting direction (FIG. 2A).
In the left direction), the pressing piece 3a
Comes into contact with the pushing-up portion 6f at the lower end of the turning lever 6 and pushes it up as shown in FIG.
In the clockwise direction, which causes the engaging portion 6d to rotate.
And the stopper 2a are disengaged, the intermediate member 1 and the cabinet member 2 are unlocked, and both members 1, 2 are allowed to slide in the contracting direction.

The rotating lever 6 is the intermediate member 1
In addition, via a disc spring, a spring washer, etc. (not shown), the screw shaft 7 is pivotally attached to prevent free rotation, and as described above, the contact piece 4c and the pressing piece 3a are forced to rotate. It is made to move. As a result, when the intermediate member 1 and the cabinet member 2 are expanded and contracted,
The rotation lever 6, especially the upper edge 6e of the rotation lever 6 and the protrusion 4a of the retainer 4 are not rubbed.

The slide rails fix the cabinet member 2 horizontally to the inner surface of the side plate of a cabinet such as a desk (not shown) with screws or the like, while the drawer member 3 is fixed to the surface of the side plate of the drawer (not shown) or the like. After being horizontally fixed by, the cabinet member 2, the intermediate member 1, and the drawer member 3 are combined with each other via the retainers 4 and 5, so that the drawer can be slidably attached.

[0022]

Since the present invention is constructed as described above, a rotating lever for locking or unlocking the intermediate member and the cabinet member when the intermediate member and the cabinet member are extended is provided on the retainer. Since it is forcibly rotated by the abutment part and the pressing piece at the end of the drawer member, as in the conventional example in which the rotating lever is urged to one side in the width direction of the intermediate member by the spring. In addition, the fatigue of the spring material will not reduce the spring force, the spring will fall off and the operation will be uncertain, or the operation will not be inoperable.Therefore, both members will be locked and unlocked reliably. Since the rotating lever does not rub against other members, especially the retainer, when pressed by the spring force, there is almost no effect on other members such as wear, and as a result, the intermediate member It can be carried out lightly to smooth the slide operation of the cabinet members. Moreover, unlike the conventional example, since no spring is used, the number of component parts is small, and the troublesome work of assembling the component parts with the spring compressed is eliminated, improving the workability of assembly and improving productivity. It is possible to reduce the cost.

[Brief description of drawings]

FIG. 1 is a side view of an embodiment of a slide rail locking device according to the present invention, in which an intermediate member and a cabinet member are partially cut away in an unlocked state.

2 (A) and (B) are side views of partially cutouts showing a locked state of the intermediate member and the cabinet member, respectively, and a partially cutaway view showing an unlocked state of the both members in the same embodiment, respectively. Is.

3 (A), (B), (C), and (D) show disassembled parts of the above-mentioned embodiment, respectively. (A) is a perspective view in which a part of a cabinet member is cut away, and (B) is a part of a retainer. FIG. 6C is a perspective view with a cutout, FIG. 6C is a perspective view with a part of the intermediate member and the rotary lever cut out, and FIG.

FIG. 4 is a side view showing a conventional slide rail locking device with a part thereof cut away.

[Explanation of symbols]

 1 Intermediate member 2 Cabinet member 2a Stopper 3 Drawer member 3a Pushing piece 4 Retainer 5 Retainer 4c Abutting part 6 Rotating lever 6c Abutting part 6d Engaging part

Claims (1)

[Scope of utility model registration request] 1. A slide rail in which a cabinet member and a drawer member are slidably attached to both front and back surfaces of an intermediate member via a retainer so that the cabinet member and the drawer member can be extended and contracted by sliding.
On the slide locus of the drawer member, a pivoting lever that pivots in the width direction is pivotally mounted, and the pivoting lever has a base end portion and a tip end portion each having a contact portion and an engaging portion. When the member and the intermediate member are extended, the abutting portion comes into contact with the abutting portion formed on the retainer so that the turning lever can be pushed and turned in one direction of the width direction, and the engaging portion is , The stopper is formed on the cabinet member so that the contraction can be prevented, and when the drawer member slides in the contraction direction, the pressing piece formed at the end of the drawer member causes the rotation lever to move the width. A locking device for a slide rail that can be pushed and rotated in the other direction to release the engagement with the stopper.