CN2714313Y - Rubber drawing belt with cloth inner layer - Google Patents

Abstract

The utility model discloses a rubber drawing belt with cloth inner layer, comprising a cord fabric layer. The upper surface and the lower surface of the cord fabric layer are affixed with rubber layers, and the cord fabric layer and the rubber layer form unit layers in parallelogram shapes. Each unit layer is orderly overlapped together along the oblique edge of the parallelogram, the overlapped edges of at least two unit layers are laminated along the length direction, and the overlapped edges of contiguous unit layers are reversely intersected and affixed together under high temperature and pressure. The cord fabric layers have two to five which are affixed and laminated together by the unit layer in a parallelogram shape of the rubber drawing belt with cloth inner layer. The parallelogram has unstable characteristic, and therefore, the rubber drawing belt with cloth inner layer has the advantages of good elastic performance, no deformation, large elasticity, not easy ageing, shockproof performance, and comfort performance for using.

Description

The canvas filler rubber drawstring

Technical field

The utility model relates to a kind of canvas filler rubber drawstring.

Background technology

In the sofa manufacture process, the resiliency supported material that the sofa frame bottom is adopted mostly is serpentine spring or nylon drawstring.Use the drawback of above-mentioned resiliency supported material to be: serpentine spring easily gets rusty, and easily sends the sound, and elasticity is little, and the comfortableness of sofa is poor; Nylon drawstring elasticity is big, and comfort is strong, but nylon drawstring is easily aging, loses original elasticity, causes the sofa bottom to subside, and causes sofa normally to use.

Summary of the invention

It is big, difficult aging that the purpose of this utility model provides a kind of elasticity, uses comfortable canvas filler rubber drawstring.

For achieving the above object, the utility model comprises casing ply, covered rubber layer on the upper and lower surface of casing ply, its design feature is: described casing ply and rubber layer constitute the elementary layer of parallelogram, each elementary layer overlaps successively along the hypotenuse of its parallelogram, have at least the overlap edge of the two-layer elementary layer overlap edge stacked and the adjacent cells layer that misplaces along its length oppositely to intersect, under HTHP, be bonded together.

Described casing ply is the 2-5 layer.

After adopting said structure, because this canvas filler rubber drawstring is by stacked being bonded together of elementary layer dislocation of parallelogram shape, parallelogram self has unsettled characteristic, so the elastic performance that canvas filler rubber draws is good, and elementary layer is to have covered rubber layer on the upper and lower surface of casing ply, the casing ply that covers rubber layer on the surface of the parallelogram shape of formation elementary layer is oppositely cross layered, make the canvas filler rubber drawstring indeformable substantially, cord self intensity height, rubber has high-elastic, ageing-resistant characteristic, therefore, this canvas filler rubber drawstring elasticity is big, be difficult for wearing out, and shock-resistant, use comfortable.

Below in conjunction with accompanying drawing, the specific embodiment of the present utility model is described in further detail:

Description of drawings

Fig. 1 is a layer structure schematic diagram of the present utility model;

Fig. 2 is the cross layered decomposition texture schematic diagram of each elementary layer;

Fig. 3 is the overlap joint view of each elementary layer.

The specific embodiment

Canvas filler rubber drawstring shown in the drawings, at first the rubber that mixes is covered on the upper and lower surface of casing ply 2 by calender, make the casing ply 2 that covers rubber layer 1, the casing ply 2 that covers rubber layer 1 is cut into the elementary layer 3 of parallelogram shape, the width of elementary layer 3 is between 30-60CM, length is between 100-120CM, 3 dislocation of multilevel-cell layer are stacked together, being each elementary layer 3 overlaps successively along the hypotenuse of its parallelogram, the overlap edge 4 of each elementary layer 3 certain position that staggers, and the oppositely intersection dislocation of overlap edge 4 of adjacent cells layer 3, as Fig. 1, shown in Figure 2 three folded layer by layer situations, the lapping direction of the overlap edge 4 of first module layer 3 is upper left, the bottom right, the lapping direction of the overlap edge 4 of second elementary layer 3 is the lower-left, upper right, the lapping direction of the overlap edge 4 of the 3rd elementary layer 3 is upper left, the bottom right.Fig. 3 shows the joint form of the overlap edge 4 of each elementary layer 3.Casing ply in the canvas filler rubber drawstring is the 2-5 layer, generally adopts three layers can satisfy requirement of strength, is bonded together through HTHP in vulcanizer.

Claims (2)

1, a kind of canvas filler rubber drawstring, comprise casing ply, covered rubber layer on the upper and lower surface of casing ply, it is characterized in that: described casing ply and rubber layer constitute the elementary layer of parallelogram, each elementary layer overlaps successively along the hypotenuse of its parallelogram, have at least the overlap edge of the two-layer elementary layer overlap edge stacked and the adjacent cells layer that misplaces along its length oppositely to intersect, under HTHP, be bonded together.

2, canvas filler rubber drawstring according to claim 1 is characterized in that: described casing ply is the 2-5 layer.

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