JPS5925217Y2 - Bottom stop for fasteners - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a bottom stop for a fastener that is divided into two parts.

Generally, there are two types of bottom fasteners: one is an integral type that is attached across both tapes, and the other is a two-piece type that is attached to each tape separately.

This invention relates to the latter two-part type and bottom stop, and its purpose is to provide a bottom stop that can be inserted from the open end side of the slider and can be passed through smoothly.

This invention will be explained below with reference to illustrated embodiments.

FIG. 1 is a partially enlarged view showing the state in which the bottom stopper 1 is attached.

The bottom stopper 1 is made up of a first segment 4 and a second segment 5 made of synthetic resin or the like, which are attached to each tape 2, 3, respectively.

6 is the working tooth. 1st. The second division bodies 4 and 5 are tapes 2 and 3
It is formed to be elongated along the longitudinal direction, and interdigitated step portions 7 and 8 are provided on opposing surfaces so as to overlap with each other.

A protrusion 9 that can be fitted onto each overlapping surface of the stepped portions 7 and 8 is provided.
A pair of combinations of the grooves 10 and 10 are provided to form a non-slip surface.

It is optional whether the protrusion 9 or the groove 10 is provided.

The head-facing surface of the first segment 4 has a connecting tooth 6 adjacent to the bottom stop 1.
A mating tooth portion 11 is provided to mesh with the mating tooth portion 11, and a mating recess 12 is provided on the head-facing surface of the second segment 5 in correspondence with the mating tooth portion 11.
is provided, the first. This determines the mutual positional relationship when the second divided bodies 4 and 5 are combined.

Also, by providing the hooking tooth portion 11 and the engaging recess 12 in this way, the lower stopper 1 and the first hooking tooth 6 adjacent thereto are
Since there is no gap with A, it is possible to prevent the bottom stop 1 from being damaged due to the tensile force applied to the bottom stop 1 when the zipper is fully opened.

On the other hand, the first. A slider 1 is provided on the outer surface of the second divided bodies 4 and 5.
Curvature recesses 16 and 17 corresponding to the maximum curvature portions 15 of the guide flanges 14 of No. 3 are provided, respectively.

The width between the concave bottom surfaces of the curvature concave portions 16 and 17 is the width between the maximum curvature portions 15 and 15 of the guide flange (i.e., the narrowest width)
It is designed to be smaller than the

Furthermore, the first. A gap 18 is formed between the opposing surfaces of the butts of the second segments 4 and 5 in a predetermined range from the butt to the head.
．． 18' and a chamfer 19.19' is provided at the butt corner.

Next, a method of fixing the bottom stop 1 will be described.

First, as shown in FIG. 2, the left and right tapes 2 and 3 are inserted into the slider 13 from the shoulder opening with the tapes 2 and 3 butted against each other.

Next, as shown in FIG. The tapes 2 and 3 are drawn in with their butts aligned so that the second segments 4 and 5 are assembled at proper positions.

Here, the first. Opposing gaps 18.
18' and chamfered portions 19, 19' are provided, so that the first. Even if the butts of the second segments 4 and 5 are diagonally joined together, the gap 18.18' and the chamfered portion 19.19' provide a cross-alignment to prevent the first segment from collapsing. Since the width of the second segments 4, 5 is narrow, they can easily pass between the guide flanges 14, 14.

By continuing to pull in the tapes 2 and 3, as shown in FIG. The second segments 4, 5 pass between the maximum curvature parts 15, 15 and reach the butt part.

At this time, the first. Curvature recesses 16 and 17 in the second segment 4°5
It is possible to pass through easily and smoothly.

In this way, the 19th surface bipartite bodies 4 and 5 are attached to the slider 1
3 are combined by their guide flanges 14 at their butts.

Next, by pulling out the tapes 2 and 3, the respective teeth 6 and 6 engage with each other as shown in FIG.
The combined state of the segments 4 and 5 is maintained.

Details of this state are shown in FIGS. 6 and 7.

Next, the first. The overlapping portions of the stepped portions 7 and 8 of the second segments 4 and 5 are joined and fixed using a welding means such as ultrasonic heat welding.

According to the above invention of eK'ff, the lower stop is composed of a first segment and a second segment, each of which has a recess as described above on its side, and the bottom stop of the first segment and the second segment. By providing a gap at the opposite corner of the section and its vicinity,
The lower stopper can be attached at the same time as the respective teeth of the fastener are engaged.

In contrast, in the past, after the slider was passed through the slider and the interlocking teeth were engaged, an integral bottom stop was attached across both the left and right tapes.

Furthermore, the first section in the slider by the four parts and the gap. This allows smooth passage of the second segment.

[Brief explanation of drawings]

FIG. 1 is a partially enlarged perspective view of the fastener showing the configuration and attachment state of the bottom stopper; FIGS. 2 to 5 are partially enlarged plan views showing the process of assembling the first and second pieces; The figure is a partially enlarged plan view showing a state in which the first segment and the second segment are engaged, and FIG. 7 is a sectional view taken along line AA in FIG. 6. 1... Bottom stopper, 2, 3... Tape, 4
・・・・・・First split body, 5・・・・・・Second split body, 6・
・・・・・・Mukuto, 7, 8・・・Danbe, 9...
... Projection, 10... Concave line, 11... Engagement tooth portion, 12... Engagement recess, 13... Slider, 14... ...Guide flange, 15...
... Maximum curvature part, 16.17 ... Curvature recess, 18.18' ... Opposing gap, 19.19'
... Chamfered part.

Claims (1)

[Scope of utility model registration request] A two-piece bottom stopper consisting of a first segment and a second segment that are respectively attached to opposing tapes of a fastener, the first segment and the second segment being attached to the outer surfaces of the slider on both sides of the slider. Corresponding to the curvature of the inner surface of the provided guide flange, the first. A recessed portion is provided so that the width between the side portions when the second segment is combined is smaller than the narrowest width between the inner surfaces of the flange, and opposing corners of the butt portions of the first segment and the second segment are provided. A lower stopper for fasteners that has a gap at and near the bottom.