Zipper with stamped metal zipper teeth

Abstract

A zipper with stamped metal zipper teeth includes two zipper tapes each having a rib at one lateral side thereof, and metal zipper teeth mounted at the rib of each zipper tape. Each zipper tooth has two mounting legs located at the rear end thereof and clamped on the rib. The ratio between the width of each zipper tooth and the gap between the mounting legs of each zipper tooth and the ratio between the combined height of each zipper tooth and the associated engagement protrusion and the gap between the mounting legs of each zipper tooth are in respective predetermined ranges so that the zipper teeth are stronger or even smaller than conventional #2 zipper teeth and have a tight connection between the zipper teeth and the zipper tape.

Description

BACKGROUND OF THE INVENTION[0001](a) Field of the Invention[0002]The present invention relates to zip fasteners and more particularly to a zipper with stamped metal zipper teeth. The zipper teeth are designed to have a high strength and can be made relatively small, preventing zipper teeth breaking and assuring a high level of connection tightness between the zipper teeth and the zipper tape.[0003](b) Description of the Prior Art[0004]Conventional stamped metal zipper teeth for zippers are classified by size in #2, #3, #4, #5, #8, #10, wherein #2 is the smallest size. According to today's technology and zipper tooth structure, zipper teeth must be no smaller than the size #2 so that zipper teeth can be strong enough for tightly fastening to a zipper tape. If the zipper tooth are smaller than the size #2, the structural strength will be insufficient, and the zipper tooth can break and be easily forced away from the zipper tape. However, zippers with #2 zipper teeth cannot fully meet ...

AI Technical Summary

Benefits of technology

[0007]The present invention has been accomplished under the circumstances in view. It is main object of the present invention to provide a zipper with stamped metal zipper teeth, which allows the zipper teeth to be made even smaller than conventional #2 metal zipper teeth, preventing zipper teeth breaking and assuring a high level of connection tightness between the zipper teeth and the zipper tape.

[0009]Thus, reasonably designing the structure of the zipper teeth enables the zipper teeth to have a high strength no matter they are made in any different specifications or even smaller than conventional #2 zipper teeth, and thus, the zipper teeth do not break easily, and can be tightly fastened to the zipper tapes and positively interlocked with the mating zipper teeth.

[0012](a) Based on the reasonable proportional design of A, B, C, the zipper teeth have a high structural strength no matter they are made in any specification or even smaller than conventional #2 zipper teeth, preventing zipper teeth breaking.

[0013].(b) Through the design of the mounting legs and retaining hole, each zipper tooth can be tightly fastened the rib of each zipper tape, enabling the elastically deformed rib to fill up the whole area of the retaining hole Unlike the circular retaining hole design of the prior art zipper teeth, the retaining hole of each zipper tooth in accordance with the present invention forms a specially constructed structure of five connected planes, the cross-sectional shape of the rib can be highly changed after clamping of the two mounting legs of each zipper tooth on the rib, and therefore, the zipper teeth can be tightly fastened to the rib without vibration.

[0014](c) After the two mounting legs of each zipper tooth are clamped on the rib, the rib is elastically deformed and has elastic potential energy, and therefore, the relatively thicker rib is prohibited from passing through the relatively narrower gap between the inner walls of the rear ends of the two mounting legs, preventing disconnection of the zipper teeth from the rib.

Problems solved by technology

If the zipper tooth are smaller than the size #2, the structural strength will be insufficient, and the zipper tooth can break and be easily forced away from the zipper tape.

However, zippers with #2 zipper teeth cannot fully meet the needs of the industry.

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