JP7408059B2 - Security structure of slide fastener - Google Patents

Description

The present invention relates to a security structure for a slide fastener.

Slide fasteners are widely used for the openings of backpacks, school bags, sports bags, etc. It is also used for entrances and exits of tents, and recently as storage bags for receiving delivery packages when you are not home.

Bags are sometimes left out of sight of their owners, such as in school classrooms, sports facilities, and accommodation facilities. Since slide fasteners can be easily opened by anyone, they can also be subject to mischief, such as theft of contents or insertion of foreign objects by malicious third parties, so crime prevention measures are needed.

As a crime prevention measure for bags, Patent Document 1 provides a lock hole in the pull of a slider, and locks the pulls of the bag and a plurality of sliders with padlocks to prevent the opening from opening.

In Patent Document 2, the sliders facing each other are connected, and the opening is prevented from opening in the connected state.

In Patent Document 3, the positions of the openings of the upper and lower slide fasteners are shifted, and even if the upper slide fastener is opened, the lower slide fastener is overlapped so as to cover it, making it difficult to operate the lower slider. .

Utility model registration No. 3114912 Japanese Patent Application Publication No. 2020-74939 Utility model registration No. 3194708

Even if the slider and bag or sliders are locked together with a padlock, if there is a slight gap, pulling the cloth in the gap horizontally at right angles to the slide fastener or pushing it in the vertical depth direction will cause the slider to close. The surrounding cloth is drawn into the gap while maintaining the distance of , and the opening opens, resembling an open candy bag, as shown in Figure 2.

Even with the structure shown in Patent Document 3, in which a plurality of slide fasteners are stacked one on top of the other, if the slide fasteners are opened in order starting from the top slide fastener, it can be easily opened, although it takes time and effort.

An object of the present invention is to provide a slide fastener structure in which the opening does not open even if the cloth of the slider portion is pulled laterally or pushed in the depth direction.

Two slide fasteners are arranged one on top of the other, and the upper and lower sliders with different opening directions are locked while maintaining a distance to create an area where the closed parts of the upper and lower slide fasteners overlap.

A locking part such as a lock hole is provided in each part of the slide fastener as a means for holding the area where the closed parts of the upper and lower slide fasteners overlap. A locking device such as a padlock may be used to secure the locking portion.

By holding the area where the closed parts of the upper and lower slide fasteners overlap, even if the cloth in the slider part is pulled sideways or pushed in the depth direction, there is no gap where the surrounding cloth is drawn, allowing the candy to It will not be in an open state like opening a bag. Even if you move the slider while maintaining the distance between the upper and lower sliders, which have different opening directions, the area where the closed parts of the upper and lower slide fasteners overlap will only move, and the opening will not open.

When not locked, the slider can be used in the same way as a pair of slide fasteners, allowing the opening to be opened wide. Further, as long as a region where the closed portions of the upper and lower slide fasteners overlap can be secured, the length at which the open sides of the upper and lower slide fasteners overlap may be short.

Slide fastener structure of the present invention Open state Conventional slide fastener that opens by being pulled vertically and laterally Slide fastener structure of the present invention Locked state Slide fastener structure of the present invention Side view in locked state Example of pull shape Example of slider shape

DESCRIPTION OF THE PREFERRED EMBODIMENTS A mode for carrying out the invention will be explained using the drawings. Note that the materials, shapes, etc. of the components described in this embodiment are not particularly intended to limit the technical scope of the invention.

This embodiment shows an example in which the lengths of the pulls of the upper and lower slide fasteners are different to ensure an area where the closed portions of the upper and lower slide fasteners overlap.

Figure 1 shows the unlocked state. Two slide fasteners are arranged one on top of the other with different opening directions, and a puller 12 of the lower slide fastener 10 is longer than a puller 13 of the upper slide fastener 11. At the tips of the pulls 12 and 13, lock holes 14 and 15 are provided for passing the shackle of a padlock.

Figures 3 and 4 show the locked state. In FIG. 3, the lower slide fastener 10 hidden by the upper slide fastener 11 is indicated by a dotted line. FIG. 4 is a side view of the state shown in FIG.

When locking, the pull handle 12 is tilted in the direction in which the lower slide fastener 10 is closed. The upper slider 17 covers the lower slider 16 with the slide fastener 11 and moves to a position where the lock holes 14 and 15 of the upper and lower pulls overlap, and then moves the puller 13 in the direction in which the upper slide fastener 11 is open. Defeat.

In this state, the shackle 5 of the padlock 4 is passed through the lock holes 14 and 15 of the upper and lower pulls, and the padlock 4 is locked, ensuring a distance between the two sliders 16 and 17, and creating an area where the closed parts of the upper and lower slide fasteners overlap.

The lower slide fastener 10 is closed on the open side of the upper slide fastener 11. The area between the slider 17 and the slider 16 is an area where the closed portions of the upper and lower slide fasteners overlap. The upper slide fastener 11 is closed on the opening side of the lower slide fastener 10. If you look at the slide fasteners stacked one above the other, there are no gaps even slightly.

Even if the sliders are brought closer together by using the play in the shackle part of the padlock or the space in the depth direction of the slide fasteners stacked one above the other, the length of the pull should be long enough to ensure an area where the closed parts of the top and bottom slide fasteners overlap. Considering the security, the opening cannot be opened unless the padlock is removed.

FIG. 5 shows an example in which the shape of the puller is devised to ensure an area where the closed portions of the upper and lower slide fasteners overlap. The puller 20 of the lower slide fastener is provided with a hole 22 through which the puller 21 of the upper slide fastener passes. A lock hole 23 is provided in the pull handle 21 of the upper slide fastener. The pull handle 20 is folded in the direction in which the lower slide fastener is closed, and the pull handle 21 is folded in the direction in which the upper slide fastener is opened. In this state, the pull handle 21 is passed through the hole 22 of the pull handle 20, and the shackle of the padlock is passed through the lock hole 23 of the pull handle 21 and locked.

With this shape of the pull, play due to the length of the padlock shackle does not affect the area where the closed parts of the upper and lower slide fasteners overlap. The longer the puller 21 passes through the hole 22 of the puller 20, the more the area where the closed portions of the upper and lower slide fasteners overlap will increase.

FIG. 6 shows an embodiment on the slider side. A lock hole 26 is provided in the pull 24 of the lower slide fastener. The slider 25 of the upper slide fastener is provided with a lock hole 27 at the tip on the opening side. With the pull handle 24 tilted in the direction in which the lower slide fastener is closed, by passing the shackle of the padlock through the lock holes 26 and 27 and locking, an area where the closed parts of the upper and lower slide fasteners overlap can be secured.

As long as the area where the closed parts of the upper and lower slide fasteners overlap can be maintained, the slider may be provided with a lock hole for locking or a through hole for the pull.

1...Gap between sliders,
2...Cloth in the gap,
3... Pair of sliders,
4...padlock,
5...padlock shackle,
10...Lower slide fastener,
11... Upper slide fastener,
12, 20, 24...lower slide fastener pull,
13, 21... Upper slide fastener pull,
14, 15, 23, 26, 27...lock hole,
16, 17...Slider,
22...Hole for passing the puller 21 through;
25...Slider with lock hole for upper slide fastener.

Claims (1)

A slide fastener structure in which two slide fasteners are arranged one above the other, and a locking part is provided to secure the distance between the upper and lower sliders with different opening directions in order to hold the area where the closed parts of the upper and lower slide fasteners overlap.