KR100857684B1 - A bottom end stop for a slide fastener, and a slide fastener comprising such a bottom end stop - Google Patents

Abstract

According to the invention, a slide fastener 1 comprising a pair of horizontal tapes 2, with a gap formed therebetween, having coupling elements 5 in each longitudinal row on their respective inner edges. A bottom detent 10 for) is disclosed. The bottom detent 10 includes a rivet member 11 and a corresponding back plate 12. The back plate 12 has one or more through holes 12a. Rivet member 11 has one or more integral protruding pins 11b that are coupled through one or more holes 12a of backplate 12 and configured to be permanently deformed with respect to backplate beyond backplate 12.

Leveling tape, slide fasteners, bottom detents, rivet members, back plate

Description

Bottom detents for slide fasteners and slide fasteners comprising such bottom detents

The entire disclosure of Italian Patent Application TO2006A000659, filed September 15, 2006, is incorporated herein by reference in its entirety.

The present invention relates to a bottom detent for a slide fastener comprising a pair of left and right horizontal strips, with gaps formed therebetween, each having a coupling element in each longitudinal row on its inner edge. In particular, the present invention includes first and second fastening plate members configured to fasten to a horizontal member tape on each side of a slide fastener near the bottom of a row of coupling elements across a gap between the tapes, wherein the first and second fastening plate members are configured. And the second plate member is connected to each other by one or more connecting members extending perpendicular to the horizontal tape or in a direction transverse from the front side to the rear side of the horizontal tape.

This type of bottom detent is disclosed for example in EP 0 110 346 A1. The bottom detent disclosed in this document has a so-called "butterfly" structure and is made of one single piece of metal. In this conventional bottom detent, a defect has been found by the need to bend the wings of the detent when attaching to the horizontal tape.

It is an object of the present invention to provide an improved bottom detent for a slide fastener without the above mentioned deficiencies.

The above and other objects are the first and second fastening plate members, respectively, the plate portion 11a and the back plate 12 of the rivet member 11, and the back plate 12 has one or more through holes 12a. The cross connecting member 11b is provided on the rivet member 11 and is coupled through the one or more holes 12a of the back plate 12 and is permanently deformed with respect to the back plate beyond the back plate 12. It is achieved according to the invention by a bottom detent of an initially formed kind, which is characterized by one integral protruding pin 11b constructed.

When the bottom detent according to the invention is attached to the slide fastener, pressure is applied evenly to deform the pin or pins of the rivet member, and there is no need to bend any part of its fastening plate member.

Further features and advantages of the present invention will become apparent from the following detailed description, by way of example and not by way of limitation, with reference to the accompanying drawings.

In the figure, reference numeral 1 denotes a slide fastener comprising a pair of left and right horizontal material tapes 2 each having opposing inner longitudinal edges. A gap 3 is formed between the opposing inner longitudinal edges.

In the embodiment shown, the tape 2 has a longitudinal reinforcing cord 4 respectively on and along each inner edge.

The inner edge of the tape 2 is provided with coupling elements 5 in each longitudinal row, such as metal teeth or injection molded teeth, in a known manner.

The bottom detent 10 according to the invention is fastened to the leveling tape 2 of the zipper near the bottom of the coupling element 5 in the row.

The bottom detent 10 comprises two separate members that are originally separated, namely a rivet member 11 and a corresponding back plate 12 (specifically see FIG. 8).

In the embodiment shown in the figure, the rivet member 11 comprises a plate portion 11a of a substantially rectangular shape that is long in the longitudinal direction. The plate portion 11a has two integral protruding pins 11b on its inner surface. These pins 11b are arranged at predetermined intervals in the longitudinal direction of the plate portion 11a. On the other hand, the back plate 12 has a long substantially rectangular shape like the plate portion 11a of the rivet member 11. The back plate 12 has two through holes 12a vertically penetrated therethrough, and the through holes 12a are arranged at predetermined intervals in the longitudinal direction of the back plate 12. The pin 11b of the rivet member 11 is inserted through and engaged with the corresponding hole 12a of the back plate 12 so that the pin does not fall off the back plate 12 (see specifically FIGS. 3 and 8). ). Referring to Figure 8, in the illustrated embodiment the pin 11b has a substantially cylindrical proximal shank and ends with a substantially conical distal tip.

After passing through the through hole 12a of the back plate 12, a part of the pin 11b of the rivet member 11 protruding beyond the back plate 12 is caused by, for example, beating. Is pressed against and plastically deformed accordingly. Alternatively, the pin 11b may be deformed in such a way that it is not thermally deformed and permanently restored to its original shape. By this modification, the distal end of each pin 11b is enlarged in radius to provide a bulging contour or shape larger than the corresponding through hole 12a, so that the pin 11b is prevented from falling from the through hole 12a. do.

Referring to Fig. 8, the plate portion 11a of the rivet member 11 has a pair of longitudinal grooves 11c in its surface intended to be attached to the horizontal member tape 2. The pair of grooves 11c are formed in the plate portion 11a with the two pins 11b interposed therebetween in such a manner that the grooves 11c extend in the longitudinal direction in parallel with the plate portion 11a. It is arranged on the left and right opposing sides. The groove 11c is configured to receive and firmly fix the reinforcing cord 4 of the horizontal member tape.

Advantageously, the plate portion 11a of the rivet member 11 also has a row of saw teeth 13 extending along the longitudinal grooves 11c in the longitudinal direction of the plate portion 11a on its four corners. (See FIG. 8). This saw tooth 13 row is configured to fix the corresponding horizontal member tape 2. However, it is not necessary to provide saw tooth rows.

Conveniently, the grooves 11c may each have one or more protruding ridges 11d extending in the transverse direction of the plate portion 11a in a manner crossing the rectangular grooves 11c. Preferably, the plurality of protruding ridges 11d are provided at predetermined intervals in the longitudinal direction of the plate portion 11a. This protruding ridge 11d is configured to bite the reinforcing cord 4 of the corresponding horizontal member tape 2. However, providing a ridge is not necessarily required.

1 to 7, the rivet member 11 and the back plate 12 of the lower detent 10 extend through the tape 2 through the pin 11b of the rivet member 11. It is fastened to the horizontal member tape 2 in a manner that does not. Instead, the pins extend through gaps 3 formed between the inner edges of the planar tape 2. In other words, the pin 11b extends perpendicular to the horizontal member tape 2 and is inserted through the gap 3. The leveling tape 2 and in particular its reinforcing cord 4 are firmly fixed between the plate portion 11a of the rivet member 11 and the associated back plate 12. At this time, the longitudinal reinforcing cord 4 of each horizontal member tape 2 is accommodated in the corresponding longitudinal groove 11c provided in the plate portion 11a of the rivet member 11, so that the horizontal member tape 2 is closed. Even when the stresses applied to separate from each other act, the longitudinal horizontal member cord 4 is firmly held by the outer edge of the longitudinal groove 11c, so that the horizontal member tape 2 is provided with the plate portion 11a and the back plate 12. Pulling outwards from the outside is prevented well. In addition, a row of the saw teeth 13 provided on the plate portion 11a firmly fixes the horizontal member tape 2, and the protruding ridges 11d provided on the longitudinal grooves 11c secure the reinforcing cords 4. Because of the bite, even if the horizontal member tape 2 is subjected to the pulling force of the horizontal member tape 2 in its longitudinal direction, the horizontal member tape 2 is prevented from being pulled out from between the plate portion 11a and the back plate 12. do.

In the embodiment shown in Figs. 9 and 10, the leveling tape 2 has respective through holes (one or more) at their lower ends (not seen in the drawing), and the rivet member 11 Not only through these holes, but also through the corresponding holes 12a of the backplate 12, the detents 10 have their pins 11b joined in such a way as to cross-engage and cross the tape as a whole.

The outer surface of the rivet member 11 and / or of the back plate 12 may be used to apply a trade name, a brand name, and the like thereto. The general shape of the member 11 and / or back plate 12 may be modified to best accommodate the consumer's needs for a particular logo.

In the embodiment shown in the figures and described above, the rivet member 11 has a groove, a saw tooth and a protruding ridge at the same time, but generally the rivet member may have only one or more of the above features. Also, if present, the saw tooth and the ridge can extend in any direction parallel to the plate portion of the rivet member.

By the above-described configuration, when the bottom detent according to the present invention is attached to the slide fastener, pressure is applied evenly to deform the pin or pins of the rivet member, and it is necessary to bend any part of its fastening plate member. none. Thus, the bottom detent is very solid and never breaks easily.

The foregoing description includes many features, but should not be construed as limiting the scope of the invention, but merely provides a description of some of the preferred embodiments of the invention.

Accordingly, the scope of the invention should be determined by the appended claims and their equivalents, rather than by the foregoing examples.

1 is a partial perspective view of a slide fastener including a bottom detent in accordance with the present invention.

Figure 2 is a plan view of a portion of the slide fastener shown in Figure 1;

3 is a partial cross-sectional view taken along the line III-III of FIG. 2;

4 is a side view of the slide fastener viewed in the direction of arrow IV of FIG. 2;

Fig. 5 is a partially enlarged cross sectional view taken along the line V-V in Fig. 2;

Fig. 6 is a side view as seen from arrow VI in Fig. 2;

Figure 7 is a rear view of the slide fastener portion shown in Figures 1 and 2;

Figure 8 is an exploded perspective view of the bottom detent according to the present invention.

9 and 10 are front and back views, respectively, of an end of another slide fastener with a bottom detent according to the present invention.

<Explanation of symbols for the main parts of the drawings>

1: slide fastener

2: leveling tape

3: gap

10: lower detent

11: rivet member

12: back plate

Claims (8)

A bottom detent for a slide fastener comprising a pair of horizontal tapes, wherein a gap is formed between the pair of horizontal tapes, each having its respective longitudinal rows of coupling elements on its respective inner edge; The bottom detent comprises a first and a second fastening plate member, the first and second fastening plate members of the slide fastener in the vicinity of the bottom of the coupling element in the longitudinal row over the gap between the pair of tapes. Are on each side and configured to fasten to the horizontal tape, The plate members are connected to each other by one or more cross connecting members, The first and second fastening plate members are respectively a plate portion and a back plate of the rivet member, The back plate has one or more through holes, The transverse connecting member is one integral protruding pin, wherein the protruding pin is provided on the rivet member and configured to engage through the one or more holes of the back plate and be permanently deformed with respect to the back plate beyond the back plate. The bottom detent of claim 1 wherein said rivet member has a plurality of integral protruding pins and said back plate has a corresponding plurality of through holes. 3. A slide fastener according to claim 1 or 2, wherein the plate portion of the rivet member is adapted to be attached to the planar tape, with respect to the slide fastener in which the inner edge of the planar tape is provided with respective longitudinal reinforcement cords. Bottom detent having a pair of parallel grooves configured to receive and secure the reinforcement cord. The bottom detent according to claim 1, wherein the plate portion of the rivet member has a saw tooth row for fixing the horizontal tape. The bottom detent of claim 1 wherein the rivet member includes one or more protruding ridges configured to bite reinforcement cords of horizontal tape. Slide fastener provided with a bottom detent according to any one of claims 1 to 5. The slide fastener of claim 6, wherein the back plate and the rivet member are fastened to the horizontal tape in such a manner that the pins or pins of the rivet member extend through the gap between the horizontal tapes. 7. The slide fastener of claim 6 wherein the horizontal tape has one or more respective through holes at their bottoms and the rivet member has two or more integral pins coupled through the holes in the tape and corresponding holes in the back plate. phrase.

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