SLIDE FASTENER

Abstract

A slide fastener has a pair of stringer tapes and coupling members each fastened to the stringer tapes in a row. The rows of coupling members lie opposite one another and connect the two stringer tapes to one another in an interlocking manner. Each stringer tape is formed from two stringer tape portions, the coupling members each rest against a first stringer tape portion, and a second stringer tape portion is arranged on the side of the first stringer tape portion facing away from the coupling members. The first stringer tape portion and second stringer tape portion of stringer tapes are bent and connected to each other at a stringer tape region. A slider is designed such that a movement of the slider in a first direction connects the coupling members of the stringer tapes in an interlocking manner and releases them in an opposite direction.

Claims

1. A slide fastener, having a pair of stringer tapes arranged parallel to one another and coupling members each fastened in a row to the stringer tapes, wherein the rows of the coupling members lie opposite one another and connect the two stringer tapes to one another in an interlocking manner, each stringer tape is formed from two stringer tape portions which are layered on top of one another, the coupling members each rests against a first stringer tape portion, and a second stringer tape portion is arranged on the side of the first stringer tape portion facing away from the coupling members, and the first stringer tape portion and the second stringer tape portion of both stringer tapes are bent and connected to one another at a stringer tape region facing the other stringer tape in each case, and having a slider which is guided along the rows by the coupling members, wherein the slider is designed such that a movement of the slider in a first direction connects the coupling members of the stringer tapes in an interlocking manner and releases them from one another in a second, opposite direction, wherein at least the first stringer tape portions of the stringer tapes have a stiffened region which extends into the bent stringer tape region, and wherein the stringer tapes forming a pair abut against the bent stringer tape regions when the coupling members interlock.

2. The slide fastener according to claim 1, wherein the stringer tapes are formed from woven material with warp threads oriented parallel to the rows of coupling members.

3. The slide fastener according to claim 1, wherein the stringer tapes in the stiffened region have warp threads made of two-component yarn, in particular polyester two-component yarn.

4. The slide fastener according to claim 1, wherein the stiffened region has at least five warp threads made of two-component yarn, in particular between 5 and 9 warp threads, in particular between 6 and 8 warp threads.

5. The slide fastener according to claim 1, wherein the stringer tapes each form a single stiffened region.

6. The slide fastener according to claim 3, wherein the two-component yarn in the stiffened region forms a plastic layer, in particular a thermoset or a thermoplastic, which is cured after heating, having an enclosed core yarn of the two-component yarn.

7. The slide fastener according to claim 1, wherein the coupling members of a stringer tape form a helix and the stiffened region of a stringer tape extends over at least half of a helix width of the slide fastener formed by the two helixes when the coupling members interlock.

8. The slide fastener according to claim 1, wherein the stringer tapes have a weft yarn made of two-component yarn, in particular polyester two-component yarn.

9. The slide fastener according to claim 1, wherein the stringer tapes are formed from single-layer fabric.

10. The slide fastener according to claim 1, wherein the stringer tapes are formed from multi-layer fabric, wherein the two-component yarn is incorporated into at least one layer of the fabric, in particular incorporated into at least two layers of the fabric, in particular incorporated into all layers of the fabric.

11. A seat cover for a motor vehicle seat, wherein the seat cover is intended and designed to be pulled from above onto the previously coverless motor vehicle seat during the production process and wherein the motor vehicle seat has at least one slide fastener running substantially vertically, wherein the slide fastener is designed in accordance with the features of claim 1.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The sole FIGURE in the drawing shows a cross-section of a slide fastener according to the invention

DETAILED DESCRIPTION OF THE INVENTION

[0019] The figure in the drawing shows a cross-section of a slide fastener according to the invention with two stringer tapes 1, 1 arranged in pairs, and rows of coupling members 2, 2 which are held in each case on the stringer tapes 1, 1 and are connected to one another in an interlocking manner and define a helix width 3 of the slide fastener. The stringer tapes 1, 1 each have a first stringer tape portion 4, 4 and a second stringer tape portion 5, 5, which rest against each other for each stringer tape 1, 1 and are connected to one another via a respective bent stringer tape region 6, 6. Furthermore, the stringer tapes 1, 1 are each connected to the coupling members 2, 2 via the first stringer tape portion 4, 4 in that the coupling members 2, 2 and first stringer tape portions 4, 4 are connected by means of sewing threads 7, 7. The second stringer tape portions 5, 5 are each used as intended to be connected to a seat cover not shown in the drawing.

[0020] The stringer tapes 1, 1 each have a stiffened region 8, 8 which extends over a partial region of the first stringer tape portion 4, 4 up to the bent stringer tape region 6, 6. The stiffened regions 8, 8 are each formed by plastic layers 9, 9 which are formed from melt layers of two-component yarns incorporated in the stiffened region 8, 8. Within the plastic layers 9, 9, core yarns 10, 10 corresponding to the number of two-component yarns are also visible. The stiffened regions 8, 8 effect that the stringer tapes 1, 1 each protrude into the region of the coupling members 2, 2 defined as the helix width 3 and abut against the bent stringer tape regions 6, 6.