JPH0774478A - Latch device - Google Patents

Abstract

PURPOSE:To smoothly lock and unlock the device body of a panel which can be opened and closed. CONSTITUTION:A stopper 18 is formed in an eccentricity piece shape to adjust the mounting position of the stopper 18 for positioning a panel 11, thus properly adjusting the dimension to a step part 13ab of a nib 13a from the panel 11 and that to a projection 17 from the stopper 18 even if there may be the dimensional error at each part of the latch device and smoothly locking and unlocking a device body 12 of the panel 11.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a latch device for locking and unlocking an openable / closable panel with respect to a device body.

[0002]

2. Description of the Related Art FIG. 3 shows the structure of a conventional latch device of this type. 3A is a plan view and FIG. 3B is a front view. Reference numeral 1 is a panel that can be opened and closed, and 2 is a main body of the apparatus. Three
Is a latch and is attached to the panel 1 via a bracket 4. The intermediate portion of the latch 3 is rotatably supported by the bracket 4 by the shaft 5, and is biased by the torsion coil spring 6 in the counterclockwise direction in the figure. The latch 3 has a locking claw 3a at its front end and an operating portion 3b at its rear end. In the device body 2,
A locking piece 7 for locking the locking claw 3a of the latch 3 is formed, and a circular piece-shaped stopper 8 for positioning the panel 1 with respect to the locking piece 7 is attached by a screw 9. ing.

Next, the operation of the above conventional example will be described. When the panel 1 is locked to the apparatus main body 2, it is sufficient to simply close the panel 1 and push it. That is, as a result, the slope 3aa of the locking claw 3a at the tip of the latch hits the locking piece 7 of the apparatus main body 2, and the latch 3 rotates clockwise around the shaft 5, so that the locking claw 3a locks. After the piece 7 is crossed over, the stepped portion 3ab locks the piece 7. At this time, the lower end of the panel 1 is regulated by the stopper 8 to prevent the panel 1 from moving more than necessary. When the panel 1 is unlocked with respect to the apparatus main body 2, by pushing the operating portion 3b of the latch 3 downward, the locking claw 3a at the tip of the latch is disengaged from the locking piece 7, so hold the operating portion 3b as it is. By pulling, the panel 1 can be opened with respect to the apparatus main body 2.

[0004]

As described above, in the above-described conventional latch device, when the panel 1 is locked to the device main body 2, the stopper is provided so that the panel 1 does not move more than necessary and the locking becomes unstable. 8 are provided. However, in the conventional latch device, since the mounting position of the stopper 8 is fixed, the dimension between the stopper 8 and the locking piece 7 is fixed. Therefore, due to the dimensional error of each part of the latch device, the panel 1 to step 3a of the locking claw 3a
There is a problem that the dimension up to b and the dimension from the stopper 8 to the locking piece 7 become improper, and the locking and unlocking operations cannot be performed smoothly.

SUMMARY OF THE INVENTION The present invention solves such a conventional problem, and an object of the present invention is to provide a latch device capable of smoothly locking and unlocking an openable / closable panel with respect to the device body.

[0006]

In order to achieve the above object, the present invention comprises means for adjusting the mounting position of a stopper for positioning a panel.

[0007]

Therefore, according to the present invention, since the means for adjusting the mounting position of the stopper for positioning the panel is provided, even if there is a dimensional error in each part of the latch device, it can be absorbed, and the panel can be absorbed. It is possible to smoothly lock and unlock the device body.

[0008]

1 shows the structure of a latch device according to an embodiment of the present invention, which has the same structure as the conventional example except for a stopper. 1A and 1B, 11 is an openable / closable panel, 12 is an apparatus main body, and 13 is a latch, which are attached to the panel 11 via a bracket 14. The latch 13 is rotatably supported by the bracket 14 at its intermediate portion by the shaft 15, and is urged to rotate counterclockwise by the torsion coil spring 16 in the drawing. The latch 13 has a locking claw 13a at its tip,
An operation portion 13b is formed at the rear end portion. Device body 1
2 is formed with a locking piece 17 for locking the locking claw 13a of the latch 13, and the panel 11 is locked with the locking piece 1.
Eccentric piece stopper 18 for positioning with respect to 7
Are attached by screws 19. Stopper 18
As shown in FIG. 2, is formed in a lever shape having a knob portion 18a, and has a mounting hole 18b formed in a plate shape at a position eccentric from the center of the lever shape. Therefore, mounting hole 1
The distance R from the center of 8b to the outer periphery varies depending on the angle. .

Next, the operation of the above conventional example will be described. When the panel 11 is locked with respect to the apparatus body 12, the panel 11 is closed and pushed, so that the slanted surface portion 13aa of the locking claw 13a at the tip of the latch contacts the locking piece 17 of the apparatus body 12 and the latch 13 of the shaft 15. Rotate clockwise in the clockwise direction. As a result, the locking claw 13a is locked by the locking piece 17
And is locked by the locking piece 17 on the stepped portion 13ab. At this time, the position of the lower end of the panel 11 is regulated by the stopper 18. When the panel 11 is unlocked with respect to the device body 12, the operating portion 13b of the latch 13 is pushed downward so that the locking claw 13a at the tip of the latch 1 is locked by the locking piece 1.
Since it comes off from 7, the panel 11 is opened by holding the operation portion 13b and pulling it.

Due to the dimensional error of each part of the latch device, the dimension from the panel 11 to the step portion 13ab of the locking claw 13a and the dimension from the stopper 18 to the locking piece 17 are not appropriate,
If the locking and unlocking operations cannot be performed smoothly, loosen the screw 19 and change the mounting angle so that the distance R becomes smaller, and then tighten the screw 19 again. As a result, the dimension from the stopper 18 to the locking piece 17 is smaller than the dimension from the panel 11 to the stepped portion 13ab of the locking claw 13a, so that the panel can be locked and unlocked smoothly.

In the above embodiment, the stopper is formed in the shape of an eccentric piece as a means for adjusting the position of the stopper.
As another means, the stopper may be provided with a long hole or a fool hole. Further, although the locking piece is exemplified as the locking portion of the apparatus main body, this can be used as the locking groove.

[0012]

As described above, since the present invention is provided with the means for adjusting the mounting position of the stopper for positioning the panel, even if there is a dimensional error in each part of the latch device, it can be absorbed. The panel can be locked and unlocked smoothly with respect to the device body.

[Brief description of drawings]

FIG. 1A is a plan view of a latch device according to an embodiment of the present invention. FIG. 1B is a front view of a latch device according to an embodiment of the present invention.

FIG. 2A is a plan view of a stopper in the latch device, and FIG. 2B is a front view of a stopper in the latch device.

FIG. 3A is a plan view of a latch device in a conventional example. FIG. 3B is a front view of a latch device in a conventional example.

[Explanation of symbols]

 11 Panel 12 Device Main Body 13 Latch 13a Locking Claw 14 Bracket 15 Shaft 16 Torsion Coil Spring 17 Locking Piece 18 Stopper 19 Screw

Claims (1)

[Claims] 1. An opening / closing panel provided with a latch having a locking claw at a front end and a rotatably supported intermediate part, and a locking part locked to the locking claw of the latch and the What is claimed is: 1. A latch device for locking and unlocking a device main body, which comprises a stopper for positioning a panel with respect to the locking portion, the latch device comprising means for adjusting a mounting position of the stopper.