JPH0718925A - Axial retainer type planar latch device - Google Patents

Abstract

(57) [Abstract] [Purpose] The doors of the switchboard storage box, etc. can be opened and closed easily, and the flat latch device can be downsized so that it can be used for doors of various sizes and the pulling board can be smoothed. (EN) Provided is a shaft retainer type planar latch device which can be rotated freely. [Structure] A pull tab 2 housed in a case 1 so as to be retractable.
Is connected to the upper and lower side walls 2 of the case 1 by means of a pivot 3 at its base end.
4, 25, and is pivoted to the upper cover wall 4 of the case 1 by a pivot 3
Is provided with a punching-out portion 26 for inserting the lower cover of the case 1.
An opening 22 is provided in the wall 5, and the pivot 3 is provided inside the opening 22.
A tongue piece 23 for preventing the pull-out of the case, and a bottom wall 6 of the case 1 with which the pulling board 2 comes into contact when the pull-in board 2 is retracted, and a case arranged behind this.
A latch 8 and a latch spring 10 are accommodated between the back wall 7 of the switch 1 and the latch spring 10. The latch spring 10 urges the latch 8 to a protruding position, and the passive pin 11 is inserted and fixed in the transverse direction from both ends of the latch 8. Is provided, and an operating projection 14 that can come into contact with the passive pin 11 is provided in a protruding manner in the rear direction of the base end portion of the pulling board 2, and a protruding ridge 13 is provided at the front base end portion of the pulling board 2. Then, the protruding portion 13 is pushed and the other end of the pulling board 2 is lifted by a finger-engaging angle.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a shaft-holding type planar latch device used for a door of a switchboard storage box or the like.

[0002]

2. Description of the Related Art In a conventional flat latch device, it is necessary to provide a finger insertion concave portion in a case in which a pulling plate is pivotally mounted and accommodated. Therefore, the lateral width of the case is increased by the finger insertion concave portion. It was necessary to prepare a wide space for mounting the flat latch device.

Further, in the conventional flat latch device, the pivot is fixed by crimping, and it is difficult to adjust it. If it is strong, the side wall of the case will be strongly pressed against the pulling plate, and the pulling plate will not rotate easily. If it is weak, the shaft will fall out.

[0004]

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to make it easy to open and close the door of a switchboard storage box and the like, to enable downsizing of a flat latch device, and to use it for doors of various sizes. Another object of the present invention is to provide a shaft-holding type flat latch device capable of smoothly rotating the pull tab.

[0005]

In the plane latch device of the present invention, a pulling plate 2 housed in a case 1 so as to be retractable and retractable will be described below with reference to the accompanying drawings. The upper and lower side walls 25, 24 of the case 1 are connected to each other by a pivot 3.
Is pivotally attached to. The upper cover wall 4 of the case 1 is provided with a punched-out portion 26 for inserting the pivot 3, and the lower cover wall 24 is provided.
The opening 22 is provided in the opening 22, and the pivot 3 is provided inside the opening 22.
The retaining tongue piece 23 is protruded. The bottom wall 6 of the case 1 with which the pull tab 2 abuts when it is retracted, and the case arranged behind this.
A latch 8 and a latch spring 10 are housed between the back wall 7 of the sleeve 1 and the back wall 7.

The latch spring 10 is provided with a passive pin 11 for biasing the latch 8 to a protruding position and inserting and fixing the latch 8 from both ends in the transverse direction. Two operation protrusions 14 that can come into contact with the passive pin 11 are provided behind the base end portion of the pulling board 2 so that two projecting ridges 13 are provided at the front base end portion of the pulling board 2. The shape and size of the protrusions 13 for protrusion are set such that when the protrusions 13 for protrusion are pushed, the other end of the pulling plate 2 is lifted by an angle at which a finger can be hooked.

[0007]

In this planar latch device, the latch 8 projects outside the case 1 by the biasing force of the latch spring 10 when the pulling plate 2 is not pulled, and the receiving portion 1 on the fixed frame body 15 side.
The tip of the latch 8 is engaged with 7. When the protrusion 13 for pushing is pushed, the other end of the pulling board 2 is lifted by an angle at which a finger can be hung, and when the pulling board 2 is pulled out from the case 1 by hanging a finger on that portion, the pulling board 2 is rotated about the pivot 3. Operation protrusion 14
Pushes the passive pin 11 of the latch 8 against the biasing force of the latch spring 10 in the retracting direction, so that the latch 8 is retracted into the case 1, the latch 8 is disengaged from the receiving portion 17, and the latch is unlocked. Get burned.

The door 16 is opened by further pulling the pull tab 2 as it is. When the finger is released from the pulling plate 2 after opening the door 16, the tip of the latch 8 immediately projects out of the case 1 by the biasing force of the latch spring and engages with the receiving portion 17 of the fixed frame body 15. Further, since the latch 8 moves due to the bias of the latch spring 10, the passive pin 11 pushes the operation protrusion 14. Therefore, the pull tab 2 is immersed in the case 1 and is stably held in the retracted position. Tongue piece 2 for retaining shaft 3
Numeral 3 does not press in the axial direction of the pivot 3, but bends so as to abut the lower end surface of the pivot 3.

[0009]

Embodiment In the illustrated embodiment, the upper and lower side walls 2 of a case 1
Cover walls 4, 5 are provided on the outer sides of 5, 24, and a drive-out portion 26 is formed on the upper cover wall 4. Axis 3
By inserting the upper end portion into the projecting portion 26, upward pull-out is prevented. Lower cover wall 5
An opening 22 is provided in the opening 22, and a tongue piece 23 is integrally provided with the cover wall 5 on the inner surface of the opening 22. This tongue piece 23 is bent so as to come into contact with the lower end surface of the pivot 3,
The downward pull-out of the pivot 3 is prevented.

The back wall 7 of the case 1 is provided with two screw holes 20. The case 1 is fitted into the vertically long opening 27 of the door 16 from the front side of the door 16, and an appropriate U-shaped washer plate 28 straddling the case 1 is abutted from the back side of the door 16, and the washer plate 2
The case 1 is fastened and fixed to the door 16 by screwing the screw 18 into the screw hole 20 from the through hole of 8. Latch 8
An escape groove portion 21 is provided on this to prevent it from coming into contact with the screw 18 during operation.

The front surface of the latch 8 is covered with a protective liner 9, and a cam slope 19 is provided at the tip of the latch 8. An insertion hole 22 for inserting the pivot 3 is provided in the lower side wall 5 of the case 1, and the pivot 3 is located on the front side of the bottom wall of the case 1 and penetrates the case 1 in the transverse direction. ing. Case 1
Relief holes 12 are provided in the lateral width direction at both base ends of the bottom wall 6 of the operating wall 14 and the operating projection 14 is inserted into the relief hole 12.

[0012]

As described above, in the flat latch device of the present invention, the protruding ridge 13 is provided at the front base end of the pulling plate 2, and when the protruding ridge 13 is pushed, the other end of the pulling plate 2 is pushed. Since the part can be lifted at an angle that can be hooked with a finger, it is not necessary to prepare a space for a finger insertion concave portion in the case unlike the conventional device, and the flat latch device can be downsized, and the front of the door can be downsized. The space can be widely used for other purposes, and since the pivot 3 is not crimped and fixed, the pull plate 2
Can be smoothly rotated.

[Brief description of drawings]

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

FIG. 2 is a bottom view of the planar latch device.

FIG. 4 is a cross-sectional view taken along the line AA of FIG.

5 is a cross-sectional view taken along the line BB of FIG.

[Explanation of symbols]

 1 case 2 Pullboard 3 Axis 4 Case upper cover wall 5 Case lower cover wall 6 Case bottom wall 7 Case back wall 8 Latch 9 Liner 10 Latch spring 11 Passive pin 12 Escape Hole 13 Protruding Protrusion 14 Operating Projection Piece 15 Fixed Frame 16 Door 17 Receiving Section 18 Mounting Screw 19 Cam Slope 20 Receiving Hole 21 Escape Groove 22 Opening 23 Axis Retaining Tongue 24 Under Case Side wall 25 Case upper wall 26 Punching part for insertion of pivot 27 Vertically long opening of door 28 Washer plate for mounting

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[Procedure amendment]

[Submission date] March 18, 1994

[Procedure Amendment 1]

[Document name to be amended] Statement

[Name of item to be corrected] Brief description of the drawing

[Correction method] Change

[Correction content]

[Brief description of drawings]

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

FIG. 2 is a bottom view of the planar latch device.

3 is a cross-sectional view taken along the line AA of FIG.

FIG. 4 is a sectional view taken along line BB of FIG.

[Explanation of reference numerals] 1 case 2 pull plate 3 pivot 4 cover wall on the upper side of case 5 cover wall on the lower side of case 6 bottom wall of case 7 back wall of case 8 latch 9 liner 10 latch spring 11 passive pin 12 escape hole 13 protrusion Protruding part 14 Operation protrusion 15 Fixed frame 16 Door 17 Receiving part 18 Mounting screw 19 Cam slope 20 Receiving hole 21 Relief groove part 22 Opening part 23 Retaining tongue for pivot 24 Lower side wall of case 25 Upper case Side wall 26 Ejection part for insertion of pivot 27 Vertically long opening part of door 28 Washer plate for mounting

Claims (1)

[Claims] 1. A pulling plate (2) housed in a case (1) so as to be retractable and retractable, a base end portion of which is pivotally attached to upper and lower side walls (25, 24) of the case (1) by a pivot shaft (3). The cover wall 4 of the casing is provided with a punching-out portion 26 for inserting the pivot shaft 3, the lower cover wall 5 of the case 1 is provided with an opening portion 22, and the tongue piece for retaining the pivot shaft 3 inside the opening portion 22. A latch 8 and a latch spring 10 are housed between the bottom wall 6 of the case 1 which is provided with a protruding portion 23 and which the pulling board 2 abuts when the handle plate 2 is retracted, and the back wall 7 of the case 1 which is arranged behind this. Thus, the latch spring 10 urges the latch 8 to the protruding position, and the passive pin 11 which is inserted and fixed in the transverse direction from both ends of the latch 8 is provided, and the operating projection 14 which is abuttable with the passive pin 11 is provided. The pulling plate 2 is provided so as to project in the back direction of the base end portion of the pulling plate 2, and the protruding portion 13 is provided at the front base end portion of the pulling plate 2, and the protruding portion is provided. A flat latch device that pushes 13 to lift the other end of the pulling board 2 at an angle at which it can be hooked.