JP4575797B2 - Headrest skin and headrest - Google Patents

Description

  The present invention relates to a skin for a headrest attached to a seat of a vehicle such as an automobile, and a headrest using the skin.

  2. Description of the Related Art Conventionally, in a vehicle such as an automobile, for example, a headrest skin formed in a side-shaped substantially L-shaped bag shape by stitching a plurality of skin pieces is used for a headrest installed on a rear seat. . In the headrest skin having such a structure, when the inner skin surface is bent and formed into a substantially L-shaped side surface by a single skin piece, even if it is a thin skin piece, the curved surface portion of the inner skin surface It was easy for wrinkles to occur. In particular, when using a fabric piece with a polyurethane foam sheet or polyurethane film laminated on the fabric skin, the urethane foam sheet or polyurethane film on the back side is less stretchable than the fabric skin on the front side. For this reason, only the fabric skin was stretched, and wrinkles were more noticeably generated on the fabric skin.

  In order to deal with such a problem, for example, a headrest skin having a structure as disclosed in Patent Document 1 has been proposed. As shown in FIGS. 5 to 7, the conventional headrest skin 31 is formed by stitching an inner skin piece 32, an outer skin piece 33, and a pair of side skin pieces 34 to form a side-like substantially L-shaped bag shape. It is formed to make. The inner skin piece 32 is formed by stitching three skin piece members 35, 36, and 37 at their opposing edges.

Then, the curved surface portion Sa of the inner skin surface S is folded inward with the opposing end edges of the skin piece members 35 and 36 being overlapped, as shown in FIGS. 6 and 7, and the folded portions 35a, A seam 38 is formed by stitching 36a along the fold line LL. As shown in FIG. 5, a pair of insertion holes 40 for inserting the stay 39 into the headrest skin 31 is formed in the skin piece member 37 of the inner skin piece 32. Further, an injection port for injecting the foamed resin material into the headrest epidermis 31 at the stitched portion of the opposing edge of the epidermis members 36 and 37 so as to be located on the side of the seam 38 with respect to the insertion hole 40 41 is formed. The injection port 41 may be formed so as to be located on the side opposite to the seam 38 with respect to the insertion hole 40 as indicated by a chain line in FIG.
JP 2000-166708 A

  However, in this conventional headrest skin, the seam 38 is formed on the curved surface portion Sa of the inner skin surface S over the entire length in the width direction along the fold line LL as described above. In other words, as apparent from FIG. 7, the folded portions 35 a and 36 a are formed starting from the seam 38, and the skin piece members 35 and 36 pass through the seam 38 at the curved surface portion Sa. The situation becomes almost one epidermis. Accordingly, the movement of the skin piece members 35 and 36 is constrained, and as shown in FIG. 5, wrinkles W are also generated in the vicinity of the curved surface portion Sa, for example, at both width end portions of the both skin piece members 35 and 36. The problem remained.

  The present invention has been made paying attention to such problems existing in the prior art. An object of the present invention is to provide a headrest skin capable of reliably suppressing the occurrence of wrinkles on the curved surface portion of the inner skin surface, and a headrest using the skin.

In order to achieve the above object, the invention according to claim 1 is directed to a headrest skin formed by sewing a plurality of skin piece members so as to form a side-shaped substantially L-shaped bag shape. In the curved surface portion of the inner skin surface, the opposing end edges of the pair of skin piece members are overlapped, and at least one opposing end edge is formed with a folded portion toward the inside, whereby both opposing ends An edge is projected inward, the folded portion is closed by stitching , and at least a part of the folded portion is stitched at a position away from the folding line to the inside. Here, the curved surface portion refers to a portion bent or curved in a concave shape.

In invention of Claim 2, in invention of Claim 1, it has the insertion hole for inserting a stay, and the injection hole for inject | pouring a foamed resin raw material, The said injection hole is the said insertion hole and It is formed between the folded portion .
According to a third aspect of the present invention, in the second aspect of the present invention, the inner end of the folded portion is stitched.

  The invention relating to the headrest described in claim 4 is characterized in that the stay is inserted into the headrest skin according to any one of claims 1 to 3 and filled with foamed synthetic resin. Is.

(Function)
In this invention, since both folded portions of the curved surface portion of the inner skin surface are joined at a position away from the folding line, the opposing edge of the skin piece member on the curved surface portion is not restrained and moved. And freedom to stretch. Therefore, wrinkles can be reliably suppressed from occurring on the curved surface portion of the inner skin surface. Moreover, since both the folding | returning parts are joined, when inject | pouring a foamed resin raw material in the skin for headrests, it can suppress that the foaming resin raw material leaks from between the folding | returning parts.

  As described above, according to the present invention, it is possible to surely suppress the occurrence of wrinkles on the curved surface portion of the inner skin surface, and to exert an effect of preventing leakage of the foamed resin material.

Below, one Embodiment of this invention is described based on FIGS. 1-3.
As shown in FIGS. 1 and 2, the headrest of this embodiment includes a bag-shaped headrest skin 11, a stay 12 inserted into the skin 11, and a foamed synthetic resin 13 filled in the skin 11. It consists of and. In this embodiment, the headrest skin 11 is formed so as to form a bag shape having a substantially L-shaped side shape by stitching the inner skin piece 14, the outer skin piece 15, and the pair of side skin pieces 16. . The inner skin piece 14 is formed by stitching three skin piece members 17, 18, 19 cut into a predetermined shape at opposite edges thereof.

  In the curved surface portion Sa of the inner skin surface S of the headrest skin 11, the opposing edges of the skin piece members 17 and 18 of the inner skin piece 14 are overlapped. In addition, if the opposing edge of the skin piece members 17 and 18 of the inner skin piece 14 is overlapped and at least one of the overlapping portions is folded back inward, the overlapping portion is projected toward the inside of the skin 11. However, here, the overlapping portions are referred to as folded portions 17a and 18a for convenience. The folded portions 17a and 18a are joined together by stitching at a position where at least a part thereof is separated from the folded line LL.

  That is, as shown in FIG. 3 (a), notches 17b and 18b are formed on both sides of the opposite end edges of the skin piece members 17 and 18 so that the folded portions 17a and 18a protrude in advance. Is formed. Then, as shown in FIG. 3 (b), in a state where the two skin pieces 17 and 18 are overlapped, the folded portions 17a and 18a are connected to the peripheral edges of the cutout portions 17b and 18b and the leading edges of the folded portions 17a and 18a. The seam 21 is stitched along the line. Thereafter, as shown in FIGS. 3B and 3C, the two skin pieces 17 and 18 are folded along the fold line LL, thereby forming a portion that is not joined to the fold line LL.

  As shown in FIGS. 1 and 2, the skin member 19 of the inner skin piece 14 has a pair of insertions for inserting the stay 12 into the headrest skin 11 and projecting both legs 12a to the outside. A hole 22 is formed. Furthermore, the foamed resin raw material is injected into the headrest skin 11 into the stitched portions at the opposing edges of the skin piece members 18 and 19 so as to be positioned on the curved surface portion Sa side with respect to the insertion holes 22, An injection port 23 for foaming the foamed synthetic resin 13 is formed.

  As described above, in the headrest skin 11 of this embodiment, the inner skin surface S is folded inward with the opposing edges of the pair of skin piece members 17 and 18 superimposed on the curved surface portion Sa of the inner skin surface S. The portions of the line LL are only opposed to each other and are not joined. For this reason, in the curved surface part Sa of the inner skin surface S, the freedom degree of a movement or expansion / contraction is ensured between the opposing edge edges of a pair of skin piece members 17 and 18. Therefore, unlike the conventional configuration, wrinkles can be prevented from occurring on the curved surface portion Sa of the inner skin surface S.

  Further, in the headrest epidermis 11, both folded portions 17a and 18a are sewn and closed at positions away from the folding line LL. For this reason, when inject | pouring a foaming resin raw material in the skin 11 for headrests, it can suppress that a raw material leak arises from between the folding | returning parts 17a and 18a.

Therefore, in this embodiment, the following effects are exhibited.
-It can suppress that wrinkles generate | occur | produce in the curved surface part Sa of the inner skin surface S, and can implement | achieve a headrest preferable in appearance.

-It can suppress that the foaming resin raw material leaks from between the folding | returning parts 17a and 18a.
-As a means for achieving the above-mentioned effect, the position of the seam 21 constituting the stitching portion is merely provided on the inner side of the skin 11 as compared with the conventional configuration, so that the number of parts does not increase. The aforementioned effects can be obtained at a low cost.

(Example of change)
In addition, this embodiment can also be changed and embodied as follows.
As shown in FIG. 4, without forming notches 17b and 18b on both sides of the opposing edge of the pair of skin piece members 17 and 18 in the inner skin piece 14, the entire length in the width direction of the opposing edge is obtained. Thus, folded portions 17a and 18a are formed. Then, the folded portions 17a and 18a are stitched by the same stitches 21 as in the above embodiment.

In the embodiment, the injection port 23 is formed so as to be located on the opposite side of the curved surface portion Sa with respect to the insertion hole 22.
-Put a seam on the folding line LL of the folding parts 17a, 18a along the folding line LL. In this way, the folded portions 17a and 18a are reliably folded on the seam, and the generation of wrinkles and leakage of the foaming material can be more effectively prevented.

-The seam 21 at the inner back of the folded portions 17a, 18a is partially provided on a line parallel to the folded line LL.
The joining of the folded portions 17a and 18a is performed by a method other than sewing, for example, adhesion or welding.

The perspective view which shows the headrest provided with the skin for headrests of one Embodiment. Sectional drawing in the 2-2 line of FIG. (A)-(c) is explanatory drawing which shows the sewing method of the inner skin surface of the skin for headrests of FIG. Explanatory drawing which shows the example of a change of the sewing method of an inner skin surface. The perspective view which shows the headrest provided with the skin for the conventional headrest. Explanatory drawing which shows the sewing method of the inner skin surface of the skin for headrests of FIG. The principal part expanded sectional view of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 11 ... Headrest skin, 12 ... Stay, 13 ... Foam synthetic resin, 14 ... Inner skin piece, 15 ... Outer skin piece, 16 ... Side skin piece, 17-19 ... Skin piece member, 17a, 18a ... Folded part, 21 ... Seam, S ... Inner skin, Sa ... curved surface, LL ... folding line.

Claims (4)

A skin for a headrest formed by stitching a plurality of skin piece members so as to form a side-shaped substantially L-shaped bag shape,
In the curved surface portion of the inner skin surface, in a state where the opposing edges of the pair of skin piece members are overlapped, at least one opposing edge is formed with a folded portion toward the inside so that both opposing edges are inward. It is projected,
An epidermis for headrest , wherein the folded portion is closed by stitching , and at least a part of the folded portion is stitched at a position away from the folding line inward. With an insertion hole for inserting the stay, and an injection port for injecting the foamed resin raw material,
The headrest skin according to claim 1, wherein the injection port is formed between the insertion hole and the folded portion . The epidermis for headrest according to claim 2, wherein an inner end of the folded portion is stitched. A headrest, wherein a stay is inserted into the headrest skin according to any one of claims 1 to 3, and a foamed synthetic resin is filled therein.

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