JP3031443U - Plastic door locking device - Google Patents

Abstract

(57) 【Abstract】 PROBLEM TO BE SOLVED: To provide a plastic door locking device capable of reliably locking a door even if there is some mounting error, easy to open and close, and usable on the same plane. provide. A bearing portion (18) is provided at one end of a plastic body (7), side plate portions (13, 13) are projectingly provided on both sides of a rear surface of a plastic catch lever (9), and a shaft hole (23) and a side plate portion of the bearing portion (18) are formed. The main body 7 and the catch lever 9 are connected by the pivot 14 passing through the shaft hole 24, one straight end portion 15b of the torsion spring 15 is inserted into the spring receiving groove portion 20 of the catch lever 9, and the other straight end portion 15c is connected to the main body. 7 is inserted into the spring receiving hole 21 and the catch lever 9 is urged to rotate in the downward direction to elastically engage the proximal end of the finger hooking projection 19 with the locking portion 12 of the plastic catch receiver 4. To provide.

Description

[Detailed description of the device]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic door locking device used for a door of a box such as an article storage box.

[0002]

2. Description of the Related Art In a conventional metal door locking device disclosed in Japanese Utility Model Laid-Open No. 4-2871, one end of a catch lever having bearing portions bent on both sides is pivotally supported, and the catch lever is provided at the other end. The catch holder is fixed to the inner frame of the box body because of the structure that locks the catch piece to the catch holder. Therefore, the door locking device is limited to use in an offset state, cannot be used on the same plane, and if there is a mounting error, it may not be possible to perform accurate locking.

[0003]

[Problems to be solved by the device]

 Therefore, the object of the present invention is to make it possible to securely lock the door even if there is some mounting error, to facilitate the opening and closing operation, and to make it possible to use it on the same plane. To provide a stop device.

[0004]

[Means for Solving the Problems]

 In the plastic door locking device of the present invention, a bearing portion 18 is provided at one end of a plastic body 7 so as to project to the front side, and a bearing portion 18 is provided. Is provided so as to penetrate the shaft hole 23. Side plate portions 13 and 13 are provided on both sides of the rear surface of the plastic catch lever 9 so as to project, and shaft holes 24 are provided at one end of the side plate portions 13 and 13 so as to face each other, and a bearing portion is provided between the side plate portions 13 and 13. Insert 18.

The main body 7 and the catch lever 9 are connected by a pivot 14 passing through the shaft holes 23 and 24, a finger hooking projection 19 is provided on the other end of the catch lever 9, and a spring is provided on the rear surface of the intermediate portion of the catch lever 9. A receiving groove 20 is provided. A spring receiving hole 21 is provided at the other end of the main body 7, the coil portion 15a of the torsion spring 15 is housed between the side plate portions 13, 13, and one straight end 15b of the torsion spring 15 is provided at the spring receiving portion. It is inserted into the groove portion 20, and the other straight end portion 15c is inserted into the spring receiving hole 21. The catch lever 9 is urged to rotate in a downward direction, and a locking portion 6 that elastically engages with the locking portion 12 of the plastic catch receiver 4 is provided at the base end portion of the finger hooking projection portion 19.

Normally, the locking portion 6 of the catch lever 9 is engaged with the locking portion 6 of the catch receiver 4, and this engagement state is further secured by the rotational biasing of the torsion spring 15, whereby the door 2 Is kept closed.

When the door 2 is opened, the fingers are hooked on the finger hooking projections 19 at the tips of the catch levers 9 and pulled forward against the bias of the torsion spring 15 to lock the locking portions 6 and 12 together. Disengage. Then, if the catch lever 9 is pulled further forward, the door 2 is opened.

Further, when the door 2 is closed, the engaging portion 6 of the catch lever 9 and the engaging portion 12 of the catch receiver are appropriately flexibly deformed, and the engaging portion 6 and the engaging portion 12 automatically move. Engagement, and this engagement state is maintained by the torsion spring 15.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In the illustrated embodiment, a main body 7 is attached to an outer surface of a side frame portion 2a of a door 2 by a screw 5. The locking portion 6 is provided at the boundary of the finger rest projection 19 of the vertical plate portion 10, and the spring receiving groove portion 20 into which the linear end portion 15b of the torsion spring 15 is inserted is provided on the rear surface side of the vertical plate portion 10. .

The catch receiver 4 is attached to the edge plate portion of the opening 3 of the fixed frame body 1 by a screw 8, and a padlock attaching plate portion 11 is continuously provided in the central portion thereof, and the catch lever 9 is attached to the catch lever 9. A through hole 22 into which the mounting plate portion 11 is inserted is provided. The mounting plate portion 11 is provided with a through hole 16 for inserting a hook portion of a padlock. When the door 2 is closed, the through hole 16 projects from the front surface of the catch lever 9. By inserting the hook portion of the padlock into the through hole 16, the catch lever 9 is locked so as not to rotate.

[0011]

According to the door locking device of the present invention configured as described above, the locking portion 6 of the plastic catch lever 4 and the locking portion 12 of the plastic catch receiver 4 are elastically engaged with each other. Since the door 2 is locked and locked on the fixed frame body 1, the door 2 can be locked accurately even if there are many dimensional errors and mounting errors, and the catch lever 9 is locked. Following the part 6 and the catch 12 of the catch receiver 4, the door 2 can be easily opened by a single continuous operation.

Furthermore, since the catch receiver 4 and the main body 7 are on the same plane and can be mounted on the same plane, the applicable range is expanded.

[Brief description of drawings]

FIG. 1 is a front view of a plastic door locking device according to an embodiment of the present invention.

FIG. 2 is a vertical sectional view of the plastic door locking device.

FIG. 3 is a longitudinal sectional view of the plastic door locking device immediately before being locked.

[Explanation of symbols] 1 fixed frame 2 door 3 opening 4 catch receiver 5 screw 6 locking part 7 main body 8 screw 9 catch lever 10 vertical plate part 11 padlock mounting plate part 12 locking part 13 side plate part 14 Pivot 15 Torsion spring 15a Coil 15b Straight end 15c Straight end 16 Penetration hole for inserting padlock hook 17 Mounting plate 18 Bearing 19 Finger hook 20 Spring receiving groove 21 Spring receiving hole 22 Through 2a side Frame

Claims (1)

[Scope of utility model registration request] 1. A bearing portion 18 is provided at one end of a plastic main body 7 so as to project to the front side, and the bearing portion 18 has a shaft hole 2
3, the side plate portions 13 and 13 are provided on both sides of the rear surface of the plastic catch lever 9 so as to project.
A shaft hole 24 is provided at one end of the shaft holes 3 and 13 so as to face each other, and the bearing portion 18 is fitted between the side plate portions 13 and 13 to form the shaft hole 2
The main body 7 and the catch lever 9 are connected to each other by the pivot 14 passing through the shafts 3, 24, the finger-levering projection 19 is provided at the other end of the catch lever 9, and the spring receiving groove 20 is provided on the rear surface of the intermediate portion of the catch lever 9. A spring receiving hole 21 is provided at the other end of the main body 7, the coil portion 15a of the torsion spring 15 is housed between the side plate portions 13 and 13, and one straight end 15b of the torsion spring 15 is provided at the spring receiving portion. Inserted into the groove portion 20, the other linear end portion 15c is inserted into the spring receiving hole 21, and the catch lever 9 is urged to rotate in the pushing-down direction.
The locking portion 12 of the plastic catch receiver 4 at the base end of the
A plastic door locking device provided with a locking portion 6 that elastically engages with.