SU1757603A1 - Detachable tight zipper - Google Patents

Abstract

Usage: in light industry. SUMMARY OF THE INVENTION: A detachable hermetic zipper contains strips opposed to each other and a mobile lock in the form of a bracket. The bands are made of the same constant length profile with intermeshing elements along the longitudinal edges. The intermeshing elements are a groove and a protrusion and are located on one strip along its entire length, on the other strip there are corresponding protrusion and groove. The protrusions and the corresponding grooves have a hook shape. 5 il.

Description

The invention relates to the field of meeting the vital needs of a person, specifically to haberdashery products, and is intended to combine the unification of clothing items of shoes, bags, containers, etc.

A known zip fastener (U.S. Patent No. 4,513,482), consisting of two tapes, is a carrier of a series of individual links.

A disadvantage of the known device is the presence of a large number of links, as a result of which this zipper requires a lot of laboriousness of manufacture, accuracy of installation of the links for coupling, and failure of one link entails failure of the fastener as a whole.

In addition, this zipper is not tight, and moisture can easily penetrate into the gaps between the engagement elements.

The closest to the claimed invention to the technical nature is a clasp (UK patent N 1036454), selected as a prototype, containing two opposite each other strips of constant length

a profile with web-linking elements along longitudinal edges, which are grooves and protrusions located in one lane and extending along its entire length and the corresponding protrusions and grooves in another lane.

However, the disadvantage of the known device is c) that the intermeshing elements (and protrusions) are located in the plane perpendicular to the plane of action of the load and shifted relative to it, which results in an uneven distribution of forces and the occurrence of bending moments in the elements of interlinking.

In addition, the interconnected bands have unequal complex profiles, which leads to the complication of manufacturing technology.

The aim of the invention is to increase the reliability of the connection and simplify the manufacturing technology.

This goal is achieved by the fact that in the proposed detachable hermetic zipper containing two opposite each other strips of a constant profile with an SL element

WITH

x | ate xj oh s

interlinking along the longitudinal edges, which are a groove and a protrusion located on one lane and extending along its entire length and the corresponding protrusion and groove on the other lane, and a mobile lock in the form of a staple tightening the connected lanes are the elements of mutually epiconnection are made with the same length along the profile, and the protrusions and the corresponding grooves have the shape of a hook.

The drawing shows: detachable sealed fastener assembly (figure 1). cross-sections of connected bands (Figs 2 and 3). a section of a detachable hermetic zipper in the connected position (FIG. 4) and a tightening mobile lock (FIG. 5).

The detachable sealed fastener contains two strips A and B of a constant length profile with each other opposite each other, with intermeshing elements along the longitudinal edges that are groove 2 and the protrusion 1. located on the stripe A and stretching along its entire length. , and the corresponding protrusion t and groove 2 are on the strip B, and the mobile lock C is in the form of a bracket tightening the connecting strips A and B (there can be two locks C, one on each side)

When fastening the detachable hermetic zipper, the ends 5 of the retaining sliding lock C slide along the longitudinal grooves of 6 lanes A and B and tighten them one to the other. In this case, the longitudinal projections of the lanes A and B enter into the corresponding grooves of the 2 lanes B and A, and the longitudinal ribs 3 are fixed in the longitudinal grooves 4. As a result, the strips A and B are firmly fixed one inside the other.

The use of the invention will allow the manufacture of a split hermetic zipper of unlimited length

simplified technology — extrusion in a heated state — from any thermoplastic material, including recycled household waste (for example, bags and other products made of polyethylene), with or without the introduction of dyes.

Along with this, the transition to the manufacture of detachable sealed zippers of various parameters will be simplified - by simply changing the nozzles with the corresponding dies, especially since the same dies are required to make both connected strips.

In addition, d is the possibility of connecting in a closed loop — when making connected bands (splitting, for example), in, ideally equal rings.

The tightness and reliability of the proposed zipper due to the double interlinking of the interconnecting bands will allow it to be used for work in the aquatic environment, under conditions of pressure drop, and in the manufacture of special materials in aggressive environments.

Claims (1)

Claims of the invention A detachable sealed fastener comprising two opposed strips of a constant length profile with intermeshing elements along longitudinal edges, which are a groove and a protrusion arranged in one strip and extending along its entire length, and the corresponding protrusion and the groove is on the other lane, and the mobile lock is in the form of a clamp tightening the connecting strips, characterized in that, in order to increase the reliability of the connection and simplify the manufacturing technology, the strips with interlocking elements mozatsepleni performed with the same along the length of the profile, and the projections and the corresponding recesses have a hook shape. ° E9Y8 "Detail A Detail 5 No. 1 Detail A € Detail A  at FIG. 2 Detail B Fig.z Detail 6 Ј2222222223 Detail B 3)