JP2878684B1 - Slide rail device with lock function - Google Patents

Abstract

An object of the present invention is to provide a slide rail device with a lock function which is excellent in durability without distortion or breakage of a pivotal connecting portion of a rotating lever even when an impact force acts in a locked state. SOLUTION: When the drawer member 3 is extended, the front end face 4 of the cabinet member 2 and the drawer member 3 are extended.
Are arranged such that a gap 6 is formed between the rear end face 5 and
A pivoting lever 8 is rotatably mounted on the bearing plate 7 at a position raised from the upper surface of the drawer member 3, and a lock plate portion 10 that can enter the gap 6 is pivotally connected to the pivoting lever 8.
And an operation plate 11 at the other end of the rotating lever 8, and the lock plate 10 is
The rotation lever 8 is urged by the spring member 12 so as to contact the upper surface of the intermediate member 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

TECHNICAL FIELD The present invention relates to a desk, a locker,
The present invention relates to a slide rail used for smoothly pulling out a drawer such as a drawer or a device mounting table from a cabinet body such as an electronic device storage.

[0002]

2. Description of the Related Art A slide rail device with a lock function for fixing and holding a drawer member at a position where the drawer member is most pulled out is already known as disclosed in Japanese Utility Model Publication No. 7-42339. In this conventional apparatus, a rotating lever is pivotally attached to the back side (the drawer member side) of one end of the intermediate member so as to be vertically rotatable, and the free end side of the rotating lever is connected to the cabinet through the window hole of the intermediate member. An upper edge protruding toward the member side is provided to bend horizontally, and a stopper is provided on a side surface of the cabinet member with which an engaging portion on the tip end side of the upper edge of the rotating lever abuts. When the cabinet member and the intermediate member are in the extended state, the engaging portion of the rotating lever is engaged with the stopper, thereby locking the cabinet member and the intermediate member.

However, in this conventional device, when a strong impact force acts in the contracted direction in the locked state, the force input from the engaging portion abutting on the stopper is directly applied to the pivotal connecting portion of the rotating lever. As a result, excessive force is applied to the pivot portion, and there is a risk that the pivot portion may be distorted or broken due to repeated slashing. Further, the stopper is formed by cutting and raising a part of the cabinet member, and since stress is concentrated on the stopper, there is a possibility that the stopper itself may be distorted or broken, and thus there is a problem in terms of durability.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an excellent durability because even if a considerably large impact force is applied in a locked state, distortion and breakage of a pivotal attachment portion of a rotating lever are avoided. To provide a slide rail device with a locking function.

[0005]

A slide rail device with a lock function according to the present invention will be described with reference to the accompanying drawings. Cabinet member 2
And drawer member 3 and drawer member 3
Are arranged so that a gap 6 is formed between the front end face 4 of the cabinet member 2 and the rear end face 5 of the drawer member 3 when the cabinet member 2 is extended. A bearing plate 7 is provided at the rear end of the drawer member 3, and at a position above the upper surface of the drawer member 3, the rotating lever 8 is moved to the drawer member 3.
The pivot plate 9 is rotatably mounted on the bearing plate 7 by a transverse shaft pin 9 and a lock plate portion 10 which can enter the gap 6 is formed at one end of the rotating lever 8, and the other of the rotating lever 8 is formed. The operation plate 11 is formed at the end. The rotation lever 8 is urged by the spring member 12 so that the lock plate portion 10 comes into contact with the upper surface portion of the intermediate member 1 in the gap 6 when extended.

[0006] The lock plate portion 10 of the rotating lever 8 can be bent so that the transverse shape becomes a U-shape. Further, the through hole 13 of the rotating lever 8 through which the shaft pin 9 passes can be formed in a slot shape long in the length direction of the intermediate member 1.

In this slide rail device, when the intermediate member 1 extends with respect to the cabinet member 2 and the drawer member 3 extends with respect to the intermediate member 1 and the drawer is most pulled out of the cabinet body,
The lock plate portion 10 of the rotating lever, which has been in sliding contact with the upper surface portion of the cabinet member, falls instantly into the gap 6 between the cabinet member 2 and the drawer member 3 by the bias of the spring member 12, and the upper surface portion of the intermediate member. Is held in a state of contact. When an external force in the closing direction acts on the drawer, the lock plate portion 10
Is sandwiched between the front end face 4 of the cabinet member 2 and the rear end face 5 of the drawer member 3, and the external force is supported only by the lock plate 10.

When the drawer is to be closed, the lock plate 10 may be released from the gap 6 by depressing the operation plate 11 of the rotating lever 8. Operation plate 1
When the drawer member 3 is slightly moved toward the cabinet member 2 while holding down the lock plate portion 1,
Since 0 enters the upper space of the upper surface of the cabinet member 2, when the depression of the operation plate 11 is stopped at that stage, the rotating lever 8 is reversed, and the lock plate 10 abuts on the upper surface of the cabinet member 2. . Drawer member 3
Moves in the contracting direction with respect to the intermediate member 1, and when the intermediate member 1 moves with respect to the cabinet member 2, the lock plate 10 slides on the upper surface of the cabinet member 2.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The slide rail device of the illustrated embodiment is designed for weight, and retainers 1b, 1b for holding a roller 14 are provided in two vertical stages on both left and right sides of a core plate 1a of an intermediate member 1. Welded. The retainers 2a and 3a for holding the rollers 14 are also welded to the inner surfaces corresponding to the cabinet member 2 and the drawer member 3 in two stages, upper and lower. The bearing plate 7 is made of a strip and is spot-welded to the outer surface of the drawer member 3. The upper end 7a of the bearing plate 7 is bent in an inverted U-shape, and the shaft pin 9 penetrates horizontally and is fixed. Spring member 12
Is composed of a torsion coil spring, the coil portion 12a is fitted on the shaft pin 9, and one straight end portion 12b is
And the other straight end 12c abuts the lower surface of the upper end 7a of the bearing plate 7.

On the upper surface of the rear end of the cabinet member 2, a stopper 15 made of a leaf spring to which the lock plate portion 10 of the rotating lever 8 rides and engages when the drawer is stored in the cabinet body to a required depth. Are spot welded. When the drawer is pulled out from the cabinet main body, the lock plate portion 10 becomes the chevron tip 15 of the stopper 15.
Go over a in the opposite direction.

[0011]

As described above, according to the first aspect of the present invention, in the locked state, the lock plate portion 10 of the rotating lever 8 moves between the front end face 4 of the cabinet member 2 and the rear end face 5 of the drawer member 3. When the lock plate 10 enters the gap 6 and an external force in the closing direction acts on the drawer, the lock plate portion 10 is sandwiched between the front end surface 4 of the cabinet member 2 and the rear end surface 5 of the drawer member 3. Will be supported by Therefore, no destructive force acts on the pivotal attachment portion of the rotating lever 8 and the like, and the durability is improved. In addition, breakage damage due to local concentration of stress can be accurately avoided.

According to the second aspect of the present invention, since the cross shape of the lock plate portion 10 is formed in a U-shape, the lock plate portion is further strengthened against distortion and breakage, and durability is enhanced.

According to the third aspect of the present invention, the through hole 13 of the rotating lever 8 through which the shaft pin 9 passes is formed in a slot shape elongated in the length direction of the intermediate member 1, so that when the locking function is released, the shaft pin 9 The lock plate portion 10 can be reliably transferred to the upper surface portion of the cabinet member 2 by moving the rotation lever 8 to the side of the cabinet member 2 while being guided by the through hole 13 and the cabinet member 2. It is possible to eliminate the erroneous operation that the lock plate portion 10 falls into the gap 6 again at a stage.

[Brief description of the drawings]

FIG. 1 is a plan view of a slide rail device with a lock function according to an embodiment of the present invention when a drawer is opened.

FIG. 2 is an enlarged vertical sectional view of the slide rail device.

FIG. 3 is a side view of a main part when a lock function is activated.

FIG. 4 is a side view of a main part when a lock function is released.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Intermediate member 2 Cabinet member 3 Drawer member 4 Front end face of cabinet member 5 Rear end face of drawer member 6 Clearance 7 Bearing plate 8 Rotating lever 9 Shaft pin 10 Lock plate portion 11 Operation plate portion 12 Spring member 13 Through hole for shaft pin 14 Roller 15 Stopper

Claims (3)

(57) [Claims] 1. A cabinet member 2 and a drawer member 3 are fitted to an intermediate member 1 so as to extend and contract in the longitudinal direction of the intermediate member 1, and when the drawer member 3 is extended, a front end face 4 of the cabinet member 2 and a drawer member. 3 and a bearing plate 7 is provided at the rear end of the drawer member 3, and the rotating lever 8 is lifted from a position above the upper surface of the drawer member 3. The lock plate 10 is rotatably mounted on the bearing plate 7 by the transverse shaft pin 9 of the drawer member 3 and can enter the gap 6.
And an operation plate 11 at the other end of the rotating lever 8, and the lock plate 10 is
A slide rail with a lock function in which the rotation lever 8 is urged to rotate by a spring member 12 so as to abut on the upper surface of the intermediate member 1. 2. The slide rail device with a lock function according to claim 1, wherein the cross-sectional shape of the lock plate portion 10 of the rotary lever 8 is formed in a U-shaped bent shape. 3. A through hole 13 through which the shaft pin 9 of the rotating lever 8 passes.
The slide rail device according to claim 1 or 2, wherein the intermediate member (1) is formed in a long slot shape in the longitudinal direction.