JPH08329U - Slide fastener with lock mechanism - Google Patents

Abstract

(57) [Summary] [Purpose] To prevent the operating slider from moving in the opening direction when the slide fastener is closed. [Structure] A plate-like lock plate having an appropriate thickness is attached to the closing side end of the slide fastener, and the base end is fixed to the lock plate and the free end is attached to the surface of the lock plate that contacts the slide fastener. And, a holder of the slide fastener is formed in which the force for elastically expanding the tip portion in the left-right direction is applied. [Effect] Since the lock plate is attached, it is possible to prevent the slider in the closed state from moving excessively.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a slide fastener, and more particularly to a slide fastener having a lock mechanism that restricts the movement of an opening / closing operation slider when the fastener is closed.

[0002]

[Background of device]

 It is extremely common to attach a slide fastener to the opening of a bag such as a second bag to form the opening / closing structure.

[0003]

[Problems to be solved by the device]

 However, with the conventional slide fastener, there was no structure to accurately stop the slider located at the closed end at that position when the fastener was closed.Therefore, the slider gradually moved while carrying and there was a small gap in the closed portion of the fastener. It was pointed out that writing instruments and other small items contained in the bag would fall and be lost from this gap.

[0004]

[The purpose of the device]

 The present invention has been made in view of the above-mentioned circumstances, and when the slide fastener is closed, a part of the slider located at the end of the fastener is fitted to the lock body so that the slider is closed. It is intended to provide a slide fastener having a lock mechanism configured so that a certain slide fastener is not opened excessively.

[0005]

[Key points of the device]

 According to the present invention, a plate-like lock plate having an appropriate thickness is attached to the closing side end of the slide fastener, and the base end is fixed to the lock plate on the surface of the lock plate that contacts the slide fastener. The idea of a slide fastener structure that has a lock mechanism that forms a holder for the slide fastener that has a free end and elastically expands the tip end to the left and right I am trying.

[0006]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings.

Reference numeral 1 denotes a known slide fastener, which is equipped with a large number of articulators 12 ... 12 that are fitted to each other on the facing surfaces of two narrow tapes 11 and 11, and the articulators 12 ... A slider 2 that slides to engage and open the articulators 12 ... 12 is attached.

Reference numeral 3 denotes a lock plate attached to an end portion of the slide fastener 1, and a synthetic resin plate having an appropriate thickness is formed in a central portion of the slide fastener 1 so as to have a substantially U-shaped front surface. A sliding groove 31 is formed on one side of the slider 2 so that a mounting base 22 of an opening / closing operation knob 21 projecting from the slider 2 can be fitted therein.

Reference numerals 32 and 32 denote slider holders formed on both sides of the sliding groove 31 by urging elastic repulsive force that expands in the left-right direction. By making the tip end a free end, the tip end can be elastically expanded in the left-right direction.

The interval between the two holders 32, 32 facing each other at a predetermined interval is slightly smaller than the width of the occlusal guide portion 23 formed at the tip of the slider 2, and the occlusal guide portion 23 of the slider 2 is Is forcibly opened only when the occluder enters, and is formed with an elastic force so that it can return to the original position again after the tip of the occlusal guide portion 23 enters. (Refer to the chain line in Figure 3)

The lock plate 3 attached to the tip of the slide fastener 1 can be attached only to the front surface side of the closed end of the slide fastener 1 as shown in FIGS. 2 and 4, and as shown in FIG. As shown in FIG. 6, the slide fastener 1 can be attached to both the front and back sides of the slide fastener 1, or only to the back side of the closed end of the slide fastener 1.

When the lock plate 3 is attached to the back side of the slide fastener 1, since the protrusion of the base 22 for attaching the slider opening / closing operation knob 21 does not exist, the lock plate 3 is formed with the vertically long sliding groove 31. It is not necessary to do so, and it suffices to form the two holders 32, 32 having free ends at the inner side surface of a suitably shaped plate body by urging an elastic force to expand in the left-right direction.

In the figure, B is a bag.

[0014]

[Effect of device]

 The effects of the present invention configured as described above are as follows.

(1) The slider 2 that has slid to the closed end of the slide fastener 1 has the bite guide portion 23 formed at the tip of the slider 2 on both sides of the tips of the holders 32 and 32 formed on the lock plate 3. Push to open and enter to the specified position. The occlusal guide portion 23 that has advanced into the holders 32, 32 has dented portions with narrowed widths on both sides, and since the dented portions are held by the tips of the holders 32, 32, the slider 2 can be accurately stopped. As a result, like the slide fastener with the conventional structure, the slider causes unexpected sliding and creates a gap at the closed end, and the stored item drops or is lost from this gap. The occurrence can be completely avoided.

(2) By attaching the lock plate 3, it is possible to exert an excellent design effect that cannot be expected with the conventional slide fastener.

(3) When it is desired to hide the fact that the lock plate 3 is used due to the design, if the lock plate 3 is attached to the back side of the slide fastener 1 as shown in FIG. There is an advantage that the effect of the present invention can be exerted without impairing it.

[Brief description of drawings]

FIG. 1 is a perspective view showing a state in which a slide fastener is attached to a bag.

FIG. 2 is a perspective view of a main part viewed from the back side.

FIG. 3 is a front view showing a relationship between a lock plate and a slider.

FIG. 4 is a partially cutaway side view showing an example in which a lock plate is attached to a front surface side of a slide fastener.

FIG. 5 is a partially cutaway side view showing an example in which a lock plate is attached to both front and back surfaces of a slide fastener.

FIG. 6 is a partially cutaway side view showing an example in which a lock plate is attached to the back surface of a slide fastener.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Slide fastener 11 Tape 12 Articulator 2 Slider 21 Knob for opening / closing operation 22 Mounting base for knob for opening / closing operation 23 Occlusion guide part 3 Lock plate 31 Sliding groove 32 Holder

Claims (3)

[Scope of utility model registration request] 1. A plate-like lock plate having an appropriate thickness is attached to a closed side end of a slide fastener, and a base end is fixed to the lock plate on a surface of the lock plate which is in contact with the slide fastener. A slide fastener having a lock mechanism formed with a free end and a holder for the slide fastener that urges a force to resiliently expand the front end portion in the left-right direction. 2. The lock according to claim 1, wherein the lock plate is formed in a U-shape in front, and a slide groove in which a mounting base of a knob for opening and closing the slider is fitted is formed in a central portion thereof in a vertically long shape. A slide fastener having a mechanism. 3. A slide fastener having a lock mechanism according to claim 1, wherein the lock plate is selectively attached to the front surface side, the front and back surfaces, or the back surface of the closing side end of the slide fastener.