JP4524193B2 - 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 provided with 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. Yes. 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, wrinkles are likely to occur on the curved surface portion of the inner skin surface. Even if it was a thin skin piece, the generation of wrinkles could not be avoided. In particular, in a structure in which a urethane foam sheet, polyurethane film, etc. are 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, so only the fabric skin stretches. Thus, 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 pieces 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 edges of the skin pieces 35 and 36 being overlapped, as shown in FIGS. 6 and 7, and the folded portions 35a and 36a are also folded. A seam 38 is formed by stitching along the fold line. Further, 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 37 of the inner skin piece 32.
JP 2000-166708 A

  As described above, 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. For this reason, compared with the case where the inner skin surface S is formed by a single skin piece, an effect of suppressing the occurrence of wrinkles on the curved surface portion Sa of the inner skin surface S can be expected, but at the seam 38 portion. As shown in FIG. 5, the problem that wrinkles W are generated on the curved surface portion Sa or in the vicinity thereof is still not solved.

  The present invention has been made paying attention to such problems existing in the prior art. The objective is to provide the headrest skin which can suppress that a wrinkle generate | occur | produces in the curved surface part of an inner skin surface, and the headrest using the skin.

In order to achieve the above object, the invention relating to the headrest skin according to claim 1 includes an injection port for injecting a foamed resin material, and a plurality of skin piece members are sewn to form a substantially L-shaped side surface. In the headrest skin formed so as to form a bag-like shape, at least one opposing edge faces inward with the curved edges of the inner skin facing the opposing edges of adjacent skin pieces. By folding back, both opposing edges protrude inward, and both sides of the overlapped portion are stitched to form a slit-like opening separately from the injection port between the stitched portions on both sides. It is characterized by this. Here, the curved surface portion refers to a portion bent or curved in a concave shape.

  The invention according to claim 2 is characterized in that, in the invention according to claim 1, a seam is formed along the folding line in the overlapping portion that is folded back to form the opening. is there.

  The invention related to the headrest according to claim 3 is characterized in that the stay is inserted into the headrest skin according to claim 1 or claim 2 and filled with foamed synthetic resin.

(Function)
In the present invention, a slit-like opening is formed in the curved surface portion of the inner skin surface. Therefore, the movement of the overlapping portion can be allowed due to the presence of the opening, but the folded portion can be closed in an orderly overlapping manner with the edge of the adjacent skin piece member in the folded state. Therefore, there is no pulling between the facing edges of the skin pieces on the curved surface portion of the inner skin surface, and it is possible to reliably suppress the occurrence of wrinkles on the curved surface portion of the inner skin surface, and the headrest skin At the time of injecting the foamed resin material into the inside, it is possible to prevent the possibility of material leakage from the opening.

  Further, if the seam is formed along the fold line of the fold-back portion, the fold-back portion is reliably folded along the seam. Therefore, prevention of wrinkles and leakage of the foamed resin material can be achieved more effectively.

  As described above, according to the present invention, it is possible to suppress the occurrence of wrinkles on the curved surface portion of the inner skin surface.

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.

  The headrest skin 11 is formed so as to form a side-like substantially L-shaped bag 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 their adjacent edges.

  A slit-like opening 20 is formed between the skin piece members 17 and 18 of the inner skin piece 14 so as to be located on the curved surface portion Sa of the inner skin surface S of the headrest skin 11. The opening 20 is formed by folding back inward with the opposing edges of the pair of skin piece members 17 and 18 being overlapped, and stitching both sides of the folded portions 17a and 18a. In addition, while overlapping the opposing end edges of the skin piece members 17 and 18 of the inner skin piece 14 to form an overlapped portion, and folding at least one of the overlapped portions toward the inside, the overlapped portion becomes the skin. 11, the two overlapping portions will be described as folded portions 17a and 18a for convenience.

  As shown in FIG. 3 (a), at the center of the opposite end edges of the skin piece members 17 and 18, notches 17b and 18b are formed on both sides thereof, so that folded portions 17a and 18a are formed in advance. ing. Then, as shown in FIG. 3B, in the state where the two skin piece members 17 and 18 are overlapped, both side portions of the folded portions 17a and 18a are formed along the notches 17b and 18b, and the stitching seams 21 are formed. To sew in an L shape. Thereafter, as shown in FIGS. 3B and 3C, by folding the both skin piece members 17 and 18 along the folding line LL, an opening 20 is formed at the center between both skin piece members 17 and 18. Is formed.

  Further, as shown in FIG. 3 (a), prior to the stitching of the two skin piece members 17, 18, the folding portion 17a of one skin piece member 17 has a folding seam along the folding line LL. 22 is formed. Accordingly, as shown in FIGS. 2 and 3C, at least one folded portion 17 a extends along the seam 22 in a state where the folded portions 17 a and 18 a of both skin piece members 17 and 18 protrude inward. It is folded and overlapped with the other folded portion 18a. As a result, the opening 20 is held in a closed state.

  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 23 is formed. Further, the foamed resin raw material is injected into the headrest skin 11 at the stitched portions of the facing edge portions of the skin piece members 18 and 19 so as to be positioned on the opening 20 side with respect to the insertion holes 23, and the foaming is performed. A slit-like inlet 24 for foaming the synthetic resin 13 is formed.

  As described above, in the headrest epidermis 11 of this embodiment, while projecting inward in a state in which the opposing end edges of the pair of skin piece members 17 and 18 are superimposed on the curved surface portion Sa of the inner skin S, A slit-shaped opening 20 is formed by stitching both side portions of the folded portions 17 a and 18 a with a seam 21. For this reason, in the curved surface portion Sa of the inner skin surface S, the presence of the opening 20 ensures a degree of freedom of movement between the opposing edge edges of the pair of skin piece members 17, 18, and pulls between the opposing edge edges. There is no risk of occurrence. Therefore, unlike the conventional configuration, wrinkles can be suppressed from occurring on the curved surface portion Sa of the inner skin surface S.

  Further, in the headrest skin 11, a seam 22 is formed along the fold line LL at the folded portion 17 a of one skin piece member 17 in the curved surface portion Sa of the inner skin surface S. For this reason, one folding | returning part 17a can be folded along the seam 22, and can be piled up orderly on the other folding | returning part 18a. This also can prevent wrinkles from occurring on the curved surface portion Sa of the inner skin surface S. In addition, the opening 20 can be held in a closed state. Therefore, when the foamed resin material is injected into the headrest skin 11, the foaming pressure of the foamed resin material acts in a direction to close the opening 20. Therefore, it is possible to prevent the risk of raw material leakage.

In the embodiment described above, 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 the headrest which has a favorable external appearance.

When the foamed resin material is injected into the headrest skin 11, it is possible to prevent the material leakage from the opening 20.
In the configuration for achieving the above effects, the opening 20 is provided and the seam 21 is formed, so that the number of parts does not increase and the configuration is very simple.
(Example of change)
In addition, this embodiment can also be changed and embodied as follows.

  As shown in FIGS. 4 (a) and 4 (b), unlike the above-described embodiment, the cutout portions 17b and 18b on both sides of the opposite end edges of the pair of skin piece members 17 and 18 in the inner skin piece 14 are not provided. thing.

The folding seam 22 is formed on the folded portion 18a on the skin piece member 18 side.
-Folding seams 22 are formed on both the folded portion 17a on the skin piece member 17 side and the folded portion 18a on the skin piece member 18 side, respectively.

  ・ Only the stitches by blank stitching are formed as the folding stitches 22 without using a sewing thread. Even if comprised in this way, the folding | returning part 17a etc. can be turned up orderly by the small hole formed by the empty stitch, and it is effective in wrinkle generation | occurrence | production prevention etc.

  ・ Omit the seam 22 for folding. Even if comprised in this way, since the opening 20 is formed, the freedom degree of the movement of the skin piece members 17 and 18 in the opening 20 part is securable. Accordingly, it is possible to prevent the skin piece members 17 and 18 from being pulled and to suppress the generation of wrinkles.

  In the embodiment, the injection port 24 is formed so as to be located on the opposite side of the opening 20 with respect to the insertion hole 23.

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. (A) (b) is explanatory drawing which shows the example of a change of the sewing method of an inner skin surface, respectively. 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, DESCRIPTION OF SYMBOLS 20 ... Opening, 21 ... Stitching seam, 22 ... Folding seam, S ... Inner skin surface, Sa ... Curved surface part, L ... Folding line.

Claims (3)

In the epidermis for headrest, which is provided with an injection port for injecting a foamed resin raw material, and formed so as to form a side-shaped substantially L-shaped bag shape by stitching a plurality of skin piece members,
On the curved surface part of the inner skin surface, in a state where the facing edge of the adjacent skin piece member is overlapped, by folding back at least one facing edge toward the inside, both the facing edges protrude inward, An epidermis for headrest, characterized in that a slit-like opening is formed separately from the injection port between stitched portions on both sides by stitching both sides of these overlapping portions. The headrest skin according to claim 1, wherein a seam is formed along a fold line in the overlapping portion that is folded to form the opening. A headrest characterized by inserting a stay into the headrest skin according to claim 1 or 2 and filling a foamed synthetic resin.

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