JPH0538209Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to the improvement of a bag lock, particularly a bag lock that can be unlocked by pulling the operating plate towards you.

[Conventional technology]

This type of bag lock can be unlocked by pulling the operating plate toward you, and the operation is extremely smooth, but there is a risk of it being opened accidentally, making it uneasy to use.

[Problem that the invention attempts to solve]

The object of the present invention is to solve the above-mentioned conventional inconveniences and to provide a bag lock that prevents the operating plate from being opened accidentally.

[Means for solving problems]

The means or structure of the present invention is as follows: (a) An intermediate portion of the operating plate is pivotally supported on the lock base by a shaft via a swinging piece, a locking fitting is connected to one end of the operating plate with a pin, and the locking fitting is locked. In a bag lock that is slidably mounted on the base body, (b) a safety metal fitting having an upright locking piece that locks on the protrusion on the bottom of the main lock attached to the back of the operating plate is slid onto the lock base; (c) an actuating plate that slides the safety fitting against the spring and facing the operating plate; The lock is pivotally attached to the lock base by a shaft, and the tip of the actuating plate is brought into contact with the tip of the operating plate.

[Effect]

When the actuating plate 21 is pushed against the spring 5, the actuating piece 22 pushes the upright piece 23 and the safety fitting 3 slides.
Since the rising locking piece 19 is disengaged from the projecting piece 18, the operating plate 7 becomes free, and when pulled as shown in FIG. 3, the lock is unlocked. That is, the swinging piece 8 rotates around the shaft 9,
The operation plate 7 moves together with the locking fitting 2 under the action of the coil spring 4 to unlock the door (see FIG. 5). When the operation plate 7 is pushed in, the swinging piece 8 rotates about the shaft 9 and moves together with the locking fitting 2 against the coil spring 4, and the projecting piece 18 of the main lock 13 locks the safety fitting 3. It locks into the piece 19 (see Figure 2). Therefore, the actuating plate 2
The operation panel 7 cannot be moved unless the user operates the button 1.

〔Example〕

In the figure, reference numeral 1 denotes a lock base whose bottom surface is divided into two stages with a middle part as a boundary, and a lock fitting 2 is slidably attached to a shallow step 1a, and a safety fitting 3 is slidably attached to a deep step 1b. Then, coil springs 4 and 5 are applied to the lock fitting 2 and the safety fitting 3, respectively.

A pivot piece 6 is erected at the boundary between the shallow step 1a and the deep step 1b, and a swing piece 8 is pivotally connected to this by a shaft 9.
The intermediate portion of the operating plate 7 and the tip of the swing piece 8 are pivotally connected to each other by a shaft 10, and one end of the operating plate 7 is pivotally connected to the locking fitting 2 by a pin 11 through an elongated hole 12. The main lock 13 is fixed to the back side of the tip. Locking metal fitting 2
A long hole 14 is opened, and this long hole 14 fits into a limiting protrusion 15 protruding from the lock base 1, so that the locking fitting 2 can move within the range of the long hole 14, and a lock formed on the side thereof The notch 16 is engaged with a locking plate 17 (see FIGS. 4 and 5) on the lid side, and the lid is locked.

Next, the safety fitting 3 placed on the deep step 1b has a locking piece 1 that is hooked on a protrusion 18 provided on the front end surface of the main lock 13.
9 is formed upright, and is pivotally connected to the lock base 1 by a shaft 20, and is attached to the safety fitting 3 so that the safety fitting 3 is moved by an actuating piece 22 integrated with an actuating plate 21 whose tip end abuts against the operating plate 7. A standing piece 23 is provided.

[Effect of idea]

According to the present invention, the operating plate 7 does not move unless the operating plate 21 is pressed, thus solving the drawbacks of the prior art.

[Brief explanation of the drawing]

The drawings show one embodiment of the safety attachment of the bag lock according to the present invention, in which Fig. 1 is a front view, Fig. 2 is a cross-sectional view, Fig. 3 is a cross-sectional view when unlocked, and Fig. 4 is a cross-sectional view when the bag is unlocked. The drawings are a sectional view taken along the line of FIG. 2, FIG. 5 is a sectional view taken along the line of FIG. 3, and FIG. 6 is a plan view of the safety fitting. DESCRIPTION OF SYMBOLS 1... Lock base, 2... Locking metal fitting, 3... Safety fitting, 4, 5... Coil spring, 6... Pivoting piece, 7...
...Operation plate, 8...Rocking piece, 13...Main lock, 18...
... Projection piece, 19 ... Locking piece, 21 ... Actuation plate, 22
... Operating piece, 23... Standing piece.

Claims (1)

[Claims for Utility Model Registration] A safety device for a bag lock consisting of a combination of the following three elements. (a) The middle part of the operating plate is pivotally supported on the lock base via a swinging piece, a locking metal fitting is connected to one end of the operating plate with a pin, and the locking metal fitting is slidably mounted on the lock base. Must be a bag lock. (b) A safety fitting with an upright locking piece that locks on the protrusion on the bottom of the main lock attached to the back of the operating plate is slidably attached to the lock base, and the locking piece is attached to the protrusion. The safety fitting is loaded with a spring that acts in the locking direction. (c) An operating plate that slides the safety fitting against the spring is pivoted to the lock base opposite the operating plate, and the tip of the operating plate is brought into contact with the tip of the operating plate.