JPH0425039Y2 - - Google Patents

Description

[Detailed Description of the Invention] [Technical Field of the Invention] This invention relates to a headrest that is attached to the upper end of a seat bag of a vehicle.

[Technical background of the invention and its problems]

The headrest is composed of a core material and an outer skin that wraps around the outer surface of the core material.The core material is made of urethane foam, polyethylene foam, polystyrene foam, etc., and the outer skin is made with consideration for the feel of the head. Nitto Fabric etc. are used.
When manufacturing a headrest, the outer skin is cut into a predetermined shape, each part is sewn and then fitted onto the core material.

Therefore, headrests are mainly manufactured by hand, such as sewing work. Furthermore, when the outer skin is sewn and then fitted onto the core material, the outer skin does not easily expand or contract, making the fitting process difficult and requiring a large number of man-hours.

[Purpose of invention]

This invention was made with attention to the above-mentioned circumstances, and its purpose is to provide a headrest that can be easily manufactured without requiring the sewing work of the outer skin or the work of fitting the headrest core material. There is a particular thing.

[Summary of the idea]

In order to achieve the above object, this invention includes a headrest core material, front and rear outer skins that cooperate with each other to wrap around the headrest core material, and edges of the front and rear outer skins, respectively. and a welder portion welded to each other, and at least one of the front and rear outer skins is a knitted material made of polyamide fiber.

[Example of idea]

An embodiment of this invention will be described below based on the drawings.

Figure 1 shows a perforated headrest A.
As shown in FIG. 2, this is attached to the upper end of the seat back b of the front seat a of the vehicle. 1 is the outer skin of the head rest A, and 2 is the head rest core material. Outer skin 1 includes front outer skin 3 and rear outer skin 4.
Both outer skins 3 and 4 are made of knit with excellent elasticity, and polyamide fibers are used as the jersey-processed knit material to improve welding processability. , or a blend of polyamide and polyester fibers. Furthermore, in order to improve weldability, a polyamide or polyurethane hot melt sheet may be laminated on the back side of the knit material. Further, the head rest core material 2 is formed of urethane foam or the like as in the conventional case.

FIG. 3 shows a mold for molding the headrest, and 5, 5 is a split mold that is divided into two parts. Recesses 5a, 5a are provided on the mating surfaces of these split dies 5, 5. When molding the headrest, the front outer skin 3 and the rear outer skin 4 are stretched over the mating surfaces having the recesses 5a, 5a, and their peripheral edges are made to protrude from the outer periphery of the split molds 5,5. Further, a headrest core material 2 is interposed between the front outer skin 3 and the rear outer skin 4 between the recesses 5a, 5a of the split molds 5,5. When the split molds 5 and 5 are joined in this state, the headrest core material 2 is wrapped by the front outer skin 3 and the rear outer skin 4, and the peripheral edges of the front outer skin 3 and the rear outer skin 4 are connected to the split molds 5 and 5. protrude from Next, the overlapping part of the front outer skin 3 and the rear outer skin 4 is welded, and the welded part 6 is welded.
The headrest is completed by cutting or melting the ends of the headrest.

With this configuration, the headrest is molded within the split molds 5, 5, so that it is molded to a constant size and shape, and wrinkles etc. do not occur on the outer skin 1.

Note that the outer skin does not need to be made of knit material for the front outer skin and the rear outer skin, and may be formed by a combination of knit and vinyl chloride. Furthermore, the present invention is not limited to a perforated headrest.

[Effect of idea]

As explained above, according to this invention, the edges of the front and rear outer skins that wrap around the headrest core material are each provided with welder parts that are welded to each other, and at least one of the front and rear outer skins is made of polyamide fibers. By forming the knit material made of knit material, the welder welding processability of the welder part is improved, eliminating the need for sewing work and manual fitting work as in the past, improving workability, and reducing the size. , the shape becomes constant and quality can be improved.

[Brief explanation of the drawing]

The drawing shows one embodiment of this invention.
The figures are a perspective view of the headrest, FIG. 2 is a side view of the headrest in an attached state, and FIG. 3 is a sectional view of a mold for molding the headrest. 1...Outer skin, 2...Headrest core material, 3...
Front outer skin, 4... Back outer skin, 5... Split type.

Claims (1)

[Scope of utility model registration request] A headrest core material, front and rear outer skins that cooperate with each other to wrap around the headrest core material, and welder parts that are formed on the edges of the front and rear outer skins and are welded to each other, A headrest characterized in that at least one of the front and rear outer skins is made of knitted material made of polyamide fibers.