Device for looms for manufacturing mats

Abstract

 Device for looms for manufacturing mats, characterized in that it comprises a clip member (4), for carrying the weft (2) through the warp, constituted by a pair of plates (6) forming a hollow space and supporting at least two rollers (13,14,15), a first roller (13) for carrying a weft thread (2) when the clip member (4) is moving in said warp, a second roller (14) for carrying said weft thread when said clip member is moving out of said warp. The mat thus obtained has a continuos double-weft weaving.

Description

[0001] The present invention relates to a device for looms for manufacturing mats.

[0002] In manufacturing mats, it is known to use looms adapted to make a continuos and single-weft weaving, by means of a shuttle, or to make a weaving with weft cut at the listing, by means of clips or other devices.

[0003] The aim of the present invention is to provide a device for looms for manufacturing mats adapted to make a different type of weaving by means of a mechanically simple structure.

[0004] Within this aim, an object of the invention is to provide a structurally simple device, thus reliable and economically convenient.

[0005] A further object of the invention is to provide an aesthetically original weaving having improved durability.

[0006] The above aim, as well as these and other objects that will be more apparent later, are achieved by a device for looms for manufacturing mats, characterized in that it comprises a clip member adapted to carry the weft through the warp, said clip device comprising a pair of plates forming a hollow space, said pair of plates supporting at least two rollers, a first roller for carrying a weft thread when the clip member is moving in said warp, a second roller for carrying said weft thread when said clip member is moving out of said warp.

[0007] Further characteristics and advantages of the invention will be more apparent by the following description of an embodiment of the invention, illustrated,by way of example,in the enclosed drawings in which

Fig. 1 is a schematic partial isometric view of a loom;

Fig. 2 schematically shows the weaving of a mat according to the invention;

Fig. 3 is a partially open plan view of the clip member;

Fig. 4 is a partially sectioned side view of the clip member of fig. 3.

[0008] With reference to the cited figures, it is shown a per se known loom, generally designated by the reference numeral 1, adapted to manufacture mats.

[0009] According to the invention the mat weaving is obtained by carrying the weft 2 through the warp 3, by means of a clip element 4 operated by a clip holder rod 5 connected to the loom elements.

[0010] The clip member 4 comprises a pair of plates 6 having a substantially triangular shape with rounded vertexes 7,8 and a tail 9 fastened to the rod 5.

[0011] The plates 7,8 are furthermore fastened at the vertexes 7 and support pivots 10, 11, 12 respectively supporting a first roller 13, a second roller 14 and a third roller 15.

[0012] In particular, the first roller 13 and second roller 14 are arranged substantially at the axis along which moves the clip holder rod 5, while the third roller 15 is offset relatively to said axis.

[0013] Moving in the warp (from left to right according to figures 2 and 3), the clip member 4 carries a weft thread 2 on the first roller 13, cooperating with the third roller 15, as illustrated by full lines in fig. 3.

[0014] This type of movement of the clip member 4 provides a continuos double-weft weaving (illustrated in fig. 2); in this manner on one side (at the left in fig. 2), a loop 16 forms around the last warp thread 3a, thus closing the side warp thread, while on the opposite side the weft thread forms a loop 17 around itself and it is therefore necessary to close the stitch.

[0015] Advantageously, it is provided a so called "English listing" formed with additional warp threads 18, in a per se known manner.

[0016] It has been seen in practice how the device according to the invention achieves the intended aim and objects providing a mat having a characteristic weaving by means of a simple and reliable structure.

[0017] An advantage of the structure lies in the lower cost of the device which furthermore allows a more efficient working of the mat.

[0018] The device according to the invention may have numerous modifications and variations, all within the inventive concept; furthermore, all the details may be substituted with technically equivalent elements.

[0019] The materials employed, as well as the dimensions, may be any according to the specific needs and the state of the art.

[0020] Where technical features mentioned in any claim are followed by reference signs, those reference signs have been included for the sole purpose of increasing the intelligibility of the claims and accordingly, such reference signs do not have any limiting effect on the scope of each element identified by way of example by such reference signs.

Claims

1. Device for looms for manufacturing mats, characterized in that it comprises a clip member (4) adapted to carry the weft (2) through the warp (3), said clip device comprising a pair of plates (6) forming a hollow space, said pair of plates supporting at least two rollers (13,14,15), a first roller (13) for carrying a weft thread (2) when the clip member (4) is moving in said warp, a second roller (14) for carrying said weft thread when said clip member is moving out of said warp.

2. Device, according to claim 1, characterized in that clip member (4) furthermore comprises a third roller (15) cooperating with said first roller (13) when the clip member (4) is moving in said warp.

3. Device, according to claim 1 or 2, characterized in that said rollers (13,14,15) are rotatably supported by respective pivots (10,11,12) fastened at their ends to said plates (6).

4. Device, according to one or more of the preceeding claims, characterized in that said plates (6) have a substantially triangular shape with rounded vertexes (7,8) and a tail (9) for its fastening to a clip holder rod (5), said plates being fastened at a vertex (7) arranged substantially on the axis along which said clip holder rod moves.

5. Device, according to one or more of the preceeding claims, characterized in that said first (13) and second (14) rollers are arranged substantially at said axis along which said clip holder rod moves, said third roller (15) being arranged sustantially offset relatively to said axis.

Drawing