JP3538754B2 - Net suspension members - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a plastic plate-like article such as a net hanging member and a method for manufacturing the plate-like article.

[0002]

2. Description of the Related Art Conventionally, such an article as described above is disclosed, for example, in Japanese Patent Publication No. 48-8229, by utilizing a thick-walled tube-shaped portion formed with artificial leather grain and the adhesiveness of a resin without using an adhesive. A suspended member having a fin portion is disclosed. This hanging member is a single plate-shaped hanging member in which the fin portion is integrally formed by extruding with an extruder, so that the fin portion is interposed at the joint of a sheet of a car, a bed, a chair, or the like. When the clip is locked to the tubular portion by sewing as described above, when the person sitting on the seat moves his waist, the seat is deformed due to complicated external forces of tension and pressure as the seat moves. However, the fins of the ball are wide and thick, so they cannot follow the deformation of the sheet, causing wrinkles, sagging, and misalignment in the seam between the sheet and the ball. Easy to make. In addition, the conventional buds have a high hardness, and when used in an automobile seat, there is a feeling of foreign matter when sitting on the same.

Further, Japanese Patent Application Laid-Open No. 57-160618, which is similar to the above, is composed of a ball and a fin-shaped part integrally formed by a roll calendar. When sewn to the eyes, the fins cannot follow the movement of the sheet, and there is a feeling of foreign matter when sitting on it.

Therefore, the applicant of the present application used a long net woven or braided with a single fiber or a composite fiber for the fin portion, and made one or more sets of fin-like band members with the net. For this purpose, the heat cutting blade cuts this and divides it, and also forms an anchor so that the fiber is not unraveled in the cut division surface part of each divided fin-like band, and this anchor and the fiber part connected to the anchor The present invention has proposed a net hanging member in which a fin-shaped portion made of a net and a rapping member are tightly connected so as not to be separated from each other by coating the rapping material heated and melted by an extruder or the like.

[0005]

However, according to this proposal, a bulged anchor portion is formed at a cut division surface portion of the fin-shaped band, and a state suitable for providing a ball is provided. However, since such an anchor portion is not formed at the edge on the other side, it is necessary to select an edge and perform an operation when coating the heated and melted ball material with an extruder or the like. In addition, the edge on the other side may be released.

[0006]

According to the present invention, there is provided the above-mentioned object.
Weaving a long net material braided with longitudinal fibers and weft fibers to an appropriate width in its longitudinal direction, or forming a band-like net using a long net material woven in an appropriate width in advance,
The left and right longitudinal end surfaces of the band-shaped net are provided with anchor portions each of which is woven in multiple layers along the longitudinal direction, and one of the left and right longitudinal end edges of the band-shaped net includes the anchor portion. The problem is solved by providing a ball with a net formed and covered with a thermoplastic resin with a predetermined width.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention forms a belt-like net by using a long net material braided with longitudinal fibers and weft fibers and woven to an appropriate width in the longitudinal direction. The left and right longitudinal end surfaces of the belt-shaped net are provided with anchor portions each of which is woven with a multi-layered yarn along the longitudinal direction. In which the net is covered with a thermoplastic resin at a predetermined width.

Since the anchor portions are provided on both left and right longitudinal end surfaces of the belt-shaped net, the engagement portions with the ball are provided on both of the two end surfaces. Therefore, when setting the net in the extruder to provide the ball, it is not necessary to select one of the two edges, and the ball can be set at any of the edges, and the ball can be reliably formed. The state of sticking to the edge is maintained.

The anchor portion uses a net member formed of a thermoplastic material or a cotton yarn, and woven the yarn in multiple layers, thereby locking and fixing the balls without a special step of forming the anchor portion. A bulge is obtained.

[0010]

BRIEF DESCRIPTION OF THE DRAWINGS The drawings are only for illustrating the present invention. FIG. 2 illustrates the structure of the net. Reference numeral 3 denotes a net, which is woven from longitudinal fibers 1 and weft fibers 2. Both fibers consist of several threads of synthetic resin or cotton. The coarsely woven net 3 having the gap 11 is formed. Although not shown in FIG. 2, the surface may be covered with a thermoplastic resin film 4 in some cases. The size of the net 3 is, for example, 60 mm in width, and is like being rolled up in a roll shape of 500 m in length.

FIG. 1 is a perspective view of a completed net hanging member, showing a part of a long one. FIG. 3 is also a cross-sectional view. In both figures, reference numeral 5 denotes a fin-shaped portion of the net 3 having a predetermined width. Anchors 7 woven with multi-layer yarns are formed on both longitudinal edges of the fins 5. 2
Numeral 0 denotes a ball-shaped net, and the belt-shaped net 31 is formed by means described later.
Is fixed to one edge of the fin-shaped portion 5 made of.

FIG. 4 is an explanatory view of the above-mentioned long sheet. If the width is 60 mm as described above, the belt-shaped net 31 is
A portion obtained by weaving the left and right sides of the net 3 wound in a roll into a multilayer structure with a thread such as a thermoplastic synthetic resin or cotton is used as the anchor 7.

FIG. 5 is a view for explaining a state in which a ball is formed on the belt-shaped net 31. As shown in FIG. The belt-shaped nets 31 having the anchors 7 formed on the left and right edges, respectively, are passed through the dies 9 for forming the lashes of the extruder 8 in the arrow B direction. In the extruder 8 of the present embodiment, two extruded nets 31 can be passed simultaneously. When setting the strip net 31 in the extruder 8, the anchors 7 are provided on both the left and right sides.
Is formed, there is no need to select the setting direction, and it does not matter which edge is set on the ball formation side. A thermoplastic resin such as polypropylene or a cotton thread, which has been press-fitted into an extruder and heated and melted in advance, is used as an anchor 7.
And the surrounding strip-shaped net 31 or the net 3
The gap 20 having a predetermined shape is formed by invading the gap 11, and the portion of the belt-shaped net 31 protruding from the gap becomes the fin portion 5.

As is apparent from the cross-sectional view of FIG. 3, the brace 20 has a thick main portion 20a surrounding the anchor 7 to function as an anchor, and a thin fin portion 20b protruding from the main portion 20a. Is fixed to a predetermined width portion of the band-shaped net 31 and enters the fiber to hold it. Therefore,
The ball 20 and the belt-shaped net 31 are securely and firmly connected.

As described above, two long net hanging members are completed through the steps of the extruder shown in FIG. However, in such a state, since it is still long, it is used after being cut to required dimensions.

The extruder of the embodiment has two dies 9, but three or more dies 9 or one dies 9 are provided.
There is no problem even if it is individual.

[0017]

As described above, according to the present invention, a fin-shaped portion composed of a braided net is used, so that
Lateral, diagonal, even if external force or torsion external force in any direction, or other combined external force is applied, because the fin-shaped portion is rich in flexibility, when the ball of the present invention is sewn to the seam of the sheet, When an external force is applied to the sheet and an irregular force is applied to the seam of the sheet, the fins adapt to the external force even when the seam is about to be released. Therefore, there is no sense of incongruity when used for a seat. In addition, since the anchor in which the multi-layered yarn at the tip of the fin portion is woven is engaged with the ball formed by extrusion molding, there is an effect that the connected state is reliably maintained.

Further, on both left and right longitudinal end surfaces of the belt-shaped net,
Anchors with multiple layers of yarn woven along the longitudinal direction are provided.When coating a heated and melted ball with an extruder, etc., select one of the two edges to work. There is no need to perform any operation, and any edge may be used, so that workability is significantly improved. In addition, a great effect is obtained that neither edge is released.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of one embodiment of the present invention.

FIG. 2 is an explanatory diagram of a structure of a net.

FIG. 3 is a sectional view of the embodiment in FIG.

FIG. 4 is an explanatory diagram of a long net.

FIG. 5 is an explanatory diagram of an extrusion molding state.

[Explanation of symbols]

1 vertical fiber 2 Weft fiber 3 net 31 belt-shaped net 4. Thermoplastic resin film, cotton yarn 5 Fins 7 anchor 8 Extrusion molding machine 9 dice 11 gap 20 Balls 20a Main part of the ball 20b Fin of the ball

──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B68G 7/052 B68G ⁷ /10-7/12 A47C 31/02 B32B 3/02

Claims (1)

(57) [Claims] 1. A long net material braided by longitudinal fibers and weft fibers is cut to an appropriate width in the longitudinal direction, or a long net material woven to an appropriate width in advance is used. Forming a band-shaped net, provided on both left and right longitudinal end surfaces of the band-shaped net are anchor portions woven with yarn in a multilayer swelled along the longitudinal direction, and one of the left and right longitudinal end edges of the band-shaped net, A net suspending member including the anchor portion, wherein a ball near the anchor portion is formed by covering a net with a predetermined width with a thermoplastic resin.