JP5736576B2 - Skin integrated foam molding headrest and method of manufacturing the same - Google Patents

Description

  The present invention relates to a skin-integrated foam-molded headrest and a manufacturing method thereof.

  Conventionally, a skin-integrated foam-molded headrest is formed by overlaying the edges of a plurality of three-dimensional cut-out skin members that are turned upside down and sewing them together with a bead to form a three-dimensional headrest cover, and then turning it upside down. It is manufactured by injecting a foamable resin into the headrest cover and foam-molding the member with the member facing up (see, for example, Patent Document 1).

  However, since the skin member is a thick member having a cushion layer on the inner surface, when the curved surface portion is stitched upside down and turned upside down, the cushion layer shrinks and a shrinkage pressure is applied to the skin layer. For this reason, in particular, the stitched end portion of the curved surface portion is easily deformed, and there is a problem in that the product does not have a smooth curved surface shape and is not attractive.

JP 2010-22402 A

  The present invention solves the above-mentioned conventional problems, and can finish the curved stitched end portion between the skin members into a smooth shape, and can add an unprecedented border decoration to the stitched end portion. It is made in order to provide a foam molding headrest and its manufacturing method.

The skin-integrated foam-molded headrest of the present invention, which has been made to solve the above-mentioned problems, is stitched at the overlapping end where the skin member on the head contact side and the other skin member surrounding it are aligned with the back surfaces thereof aligned. In the automotive headrest comprising the bag-shaped headrest cover and the foamed resin body foam-molded therein, the skin member is composed of a skin layer and a cushion layer, and the stitched portion of the headrest cover is Sowase the border tape both hem edge over both the outer surface and the folded portion of the downturned overlapping ends are sewn by machine-stitching together the overlapping end and the both folded portions interposed between the border tape, this The stitched portion of the cushion layer is shrunk by stitching, while the overlapping end portion and the trimming tape of the non-stitched skin member surrounded by the trimming tape are used. The inflatable beaded edge shape to form a ball-edged edging pattern by the cushion layer, is characterized in that a result is between the skin member are sewn integrated via the edging escutcheon by border tape .

The method for producing an integral skin foam molded headrest of the present invention, a skin member comprising a head contact side comprising a skin layer and the cushion layer, the back surface thereof and another skin member surrounding the consists of a skin layer and the cushion layer The overlapping ends intervening between the bordering tapes, with the overlapping tapes aligned together, and with a U-shaped border tape having both hem edges facing back over both outer surfaces of the overlapping edge portions. The stitching part of the cushion layer is shrunk by stitching together with the folding part and both folded parts, while the overlapping end part of the non-stitched skin member surrounded by the edging tape and the edging tape are inflated by the cushion layer into a bead shape forming a border pattern Tamaenjo, which between skin member described above is manufactured suture integrated bag-shaped headrest cover through the border escutcheon by It is characterized in that foam molding by injecting inside the expandable resin.

The headrest of the present invention is a bag-shaped headrest cover in which a skin member on the head contact side and another skin member surrounding the headrest are stitched together at the overlapped end portion where the back surfaces thereof are aligned, and foam-molded therein. In the headrest for automobiles composed of a foamed resin body, the stitched portion of the headrest cover is attached with an edging tape with both hem edges facing back over both outer surfaces of the overlapped end, and is interposed between the edging tapes. The overlapped end portion and the two folded portions are sewn together by a sewing seam, so that the outer skin member is stitched and integrated through a border decoration portion by a border tape, so that the periphery of the headrest is bordered by the border tape. It is emphasized by the decorative part and becomes a novel design that has never been seen before. Moreover, this border decoration part is formed with a border pattern swelled in a bead shape and is excellent in design.

  In addition, the manufacturing method of the present invention is such that the skin member on the head contact side and other skin members surrounding it are overlapped with their back surfaces aligned, and both hem edges are backed over both outer surfaces of the overlapping end portions. While attaching an edge tape having a U-shaped cross-section as a turned-up part in the direction, the above-mentioned skin member is interposed between the above-described skinned members by stitching together with the overlapped end part and both turned-up parts interposed between the edge tapes. A bag-like headrest cover integrated with stitching is manufactured, and foamed resin is injected into the inside of the headrest cover so that it is foam-molded.Therefore, it is not necessary to turn the skin member over so that the border is not on the surface. In addition to the reduction, it is not necessary to correct the deformed portion by turning it over, so that productivity can be significantly improved and manufacturing costs can be reduced.

It is sectional drawing which shows the state added with the edging tape which made the cross-sectional edge part of the skin member U-shaped cross section. It is sectional drawing which shows the state stitch | sutured with the edging tape which made the cross-sectional edge part of the skin member the U-shaped cross section. It is a partially cutaway side view of a stitched bag-like headrest cover. It is sectional drawing which shows the state which injected and foamed foaming resin in the headrest cover set in the split mold. It is a partially notched side view which shows the principal part of the completed skin integral foaming headrest. It is a perspective view of the completed skin integral foam molding headrest.

The production method of the present invention will be described in detail with reference to the drawings.
1 is a skin member comprising a skin layer 1a made of synthetic leather and a cushion layer 1b with a thin film layer. The skin member 1 has a front surface on the head contact side and a back surface as another skin member surrounding it. Three-dimensional cutting is performed on the bottom surface. The thin film layer formed on the cushion layer 1b prevents the foamable resin from leaking through the continuous pores of the cushion layer 1b.

  Then, by sewing the overlapped end portion obtained by aligning the three cut surfaces of the three-sided cuts with the back surfaces, the bag-like headrest cover 5 having a curved end as shown in FIG. 3 is formed. Is done.

  The sewing machine is wound four times by an auxiliary device called a wrapper (not shown), and both hem edges of the U-shaped border tape 2 having a folded center at the center are used as a folded portion 2a facing back. . As shown in FIG. 2, both of the border tapes 2 are attached so as to surround the overlapped portion 4 of the back ground and the bottom ground surrounding the head-facing front surface and the head-facing front ground. The overlapping end portion 4 is stitched together with the folded-back portion 2a of the hem edge.

  By this stitching, the stitched portion of the cushion layer 1b contracts, so that the overlapped end portion 4 of the unsewed skin member 1 surrounded by the border tape 2 swells as shown in FIG. 2, and the border tape 2 is also swollen by the swelling. Since it swells in a balloon shape and becomes a rim shape, a rim-like border pattern 9 a is formed on the periphery of the headrest cover 5. Further, a perforated pattern 9a is formed with a sewing stitch 9b by sewing, and a border decoration portion 9 is formed at the peripheral edge of the headless cover 5 by the trimmed pattern 9a and the sewing stitch 9b.

  The top edge of the bottom surface of the three-dimensional headrest cover 5 sewn in this way and the lower edge of the front surface of the head contact side are openings when pouring foaming resin without sewing the sewing machine as shown in FIG. 3.

  Then, the headrest stay 10 is set in the headrest cover 5 without turning the headrest cover 5 upside down, and the headrest cover 5 is set in the split mold 6 as shown in FIG. When injected and foamed, a three-dimensional skin-integrated foam-molded headrest is formed in which a cushion material 7 as shown in FIGS. It will be.

  The peripheral edge of the surface integrated foam molding headrest manufactured in this way has a broken line shape consisting of a rim-like border pattern 9a by the border tape 2 covering and covering the overlapping end portion 4, and a sewing seam 9b by a sewing thread. A border decoration portion 9 made of a pattern is formed. Moreover, since the edging decorative part 9 is formed without turning the skin member 1 upside down, the peripheral edge of the skin-integrated foam-molded headrest is free from distortion that occurs when the synthetic leather with waist is turned upside down despite the curved periphery. Will be beautiful with a smooth curve.

1 Skin material
1a Skin layer
1b Cushion layer 2 Border tape
2a Folding part 3 Opening 4 Overlapping end part 5 Headrest cover 6 Split type 7 Cushioning material 9 Border decoration
9a Border pattern
9b Sewing stitch
10 Headrest stay

Claims (2)

A bag-like headrest cover in which a skin member on the head contact side and another skin member surrounding the skin member are sewn together at the overlapping ends aligned together, and a foamed resin body foam-molded therein In the automotive headrest, the skin member is composed of a skin layer and a cushion layer, and the stitching portion of the headrest cover has a hem tape with both hem edges facing back over both outer surfaces of the overlapped end portion. And stitched together with the overlapped end portion and both folded portions interposed between the border tapes, and the stitch portion of the cushion layer is shrunk by the stitches, while the stitches surrounded by the border tape are sewn. lap end and edging tape skin member which is not inflatable the ball edged to form a ball-edged edging pattern by the cushion layer, thereto Integral skin foam molded headrest between said skin member is characterized by being sewn integrated via the edging escutcheon by border tape I. Superimposing the skin member on the side of the head consisting of the skin layer and the cushion layer, and the other skin member consisting of the skin layer and the cushion layer and aligning the back surfaces thereof, The cushion layer is formed by sewing together with the overlapped end portion and the two folded portions interposed between the edging tapes, while attaching a U-shaped edging tape with both hem edges facing back over both outer surfaces. While the stitched portion is shrunk, the overlapped end portion of the non-stitched skin member surrounded by the edging tape and the edging tape are inflated into a bead shape by the cushion layer to form a beaded edging pattern, and as described above Produces a bag-like headrest cover in which the skin members are integrated by stitching through a border decoration part, and injects foaming resin into the interior to form foam. Integral skin foam molded headrest manufacturing method of the.

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