JP5477175B2 - Stitch line positioning structure - Google Patents

Description

  The present invention uses two combination members each composed of a pad and a cover that covers the pad, and the combination line includes two combination members at the boundary between the two combination members. It relates to a stitch line positioning structure for positioning a stitch line so that it can be viewed continuously.

Conventionally, for example, a vehicle seat is composed mainly of a seat cushion part where an occupant sits down, a seat back part where the occupant leans his back, and a headrest part where the occupant leans his head. Yes. In addition, each of the seat cushion portion, the seat back portion, and the headrest portion is mounted with a seat cover on the pad. Each seat cover is three-dimensionally formed into a bag shape by sewing a plurality of skin pieces so as to cover each of the pad of the seat cushion portion, the pad of the seat back portion, and the pad of the headrest portion.
In such a seat cover, for example, as shown in FIGS. 5A and 5B, stitch lines ZD1 and ZD2, which are linear patterns formed by the stitches of the sewing machine, are formed along the joint ZT1 of the skin pieces Z1 and Z2. May have been. For example, in a so-called double stitch line, a pair of stitch lines ZD1 and ZD2 are formed in parallel with a seam ZT1 between the skin pieces Z1 and Z2 by a two-needle sewing machine. The double stitch line can be easily decorated just by sewing with a two-needle sewing machine, and it can give a high-class feeling, so it is widely used for leather seat covers and the like.
However, since the stitch line including the double stitch line is a relatively conspicuous decoration on the surface of the seat cover, it is necessary to position the stitch line so as to be a desired position on the vehicle seat.

  For example, in the prior art described in Patent Document 1, as shown in FIGS. 5A and 5B, first, the edges of the skin pieces Z1 and Z2 are sewn with the suture thread 110, and the skin piece Z1. , The edge of Z2 is folded. Then, the folded portion and the resin thin plate 120 are sewn together at the double stitch lines ZD1 and ZD2 along the joint ZT1 of the skin pieces Z1 and Z2, thereby forming a seat cover. The resin thin plate 120 is a member for positioning a stitch line to the vehicle seat, and is formed with protruding positioning ribs 121. Then, the seat cover is put on the vehicle seat so that the positioning rib 121 formed on the resin thin plate 120 matches the positioning groove 131 of the recess 130 formed on the seat member Z3 of the vehicle seat. A skin-attached part structure is disclosed in which the position of the line can be a desired position in the vehicle seat.

JP 2008-136762 A

In the prior art described in Patent Document 1, for example, as shown in FIGS. 1 and 2, stitch lines 11 FS and 11 LS applied to a headrest cover 10 </ b> C covering the headrest portion 10, and a seat back portion 20 are provided. Stitch lines 21FS and 21LS applied to the covered seat back cover 20C are continuously extended from the headrest portion 10 to the seat back portion 20 at the boundary portion KL (see FIG. 1B). There is no description of positioning the stitch line so that it can be seen. Further, in the conventional stitch line positioning structure described in Patent Document 1 shown in FIG. 5, the resin thin plate 120 can position on the surface of the sheet member Z3 in a direction orthogonal to the joint ZT1 of the skin pieces Z1 and Z2. However, only positioning in one direction is performed, and positioning in the direction along the joint ZT1 cannot be performed. Further, the resin thin plate 120 having the length of the joint ZT1 is sewn, and the number of sewing steps is relatively large. Moreover, since the folding part of the skin pieces Z1 and Z2 located on the resin thin plate 120 is present at a position that can be seen by the user, the user feels a foreign object due to swelling. Further, when the position of the stitch line is on a two-dimensional plane, it is relatively easy to sew the resin thin plate 120, but for example, a three-dimensional curved surface like the stitch line 11FS of the headrest portion 10 in FIG. When the stitch line is provided, it is very difficult to sew the resin thin plate 120.
The present invention was devised in view of such a point, and appropriately positions the stitch lines at the boundary so that the stitch lines extending over the two members to be combined can be seen continuously at each boundary. It is another object of the present invention to provide a stitch line positioning structure that can be positioned more easily.

In order to solve the above problems, the stitch line positioning structure according to the present invention takes the following means.
First, according to the first aspect of the present invention, two combination members each composed of a pad and a cover covering the pad are used in combination, and stitch lines applied to the respective covers combine the combination members. Thus, the stitch line positioning structure is used for positioning the stitch line at the boundary between the two combination members so that the two combination members can be seen continuously.
In the stitch line positioning structure, the first engagement piece is sewn at any position of the stitch line in the cover of at least one combination member, and in the vicinity of the boundary portion in the pad of the one combination member A first engaged portion that engages with the first engagement piece is provided at a position corresponding to the stitch line of the other corresponding combination member.
Then, the stitch line of one combination member with respect to the position of the stitch line of the other combination member at the boundary portion of the one combination member by engaging the first engagement piece with the first engaged portion. Positioning.

According to the first aspect of the invention, the stitch line can be appropriately positioned so as to continuously appear across the two combination members.
In addition, the position of the stitch line of at least one combination member at the boundary between the two respective combination members is positioned in both a direction parallel to the direction of the stitch line and a direction orthogonal to the direction of the stitch line. The first engaging piece is sewn at any position on the stitch line in the cover of the one combination member, and the first engaged portion is provided at an appropriate position on the pad of the one combination member. Since it is only necessary to engage the first engagement piece with the engaged portion, positioning can be performed more easily.

Next, a second invention of the present invention is a combination of two combination members composed of a pad and a cover covering the pad, and the stitch line applied to each cover combines the combination members. Thus, the stitch line positioning structure is used to position the stitch line at the boundary between the two combination members so that the two combination members can be viewed continuously.
In the stitch line positioning structure, the first engagement piece is sewn at any position of the stitch line in the cover of one combination member, and the vicinity of the boundary portion in the pad of the one combination member. A first engaged portion that engages with the first engagement piece is provided at a position corresponding to the stitch line of the other corresponding combination member.
In addition, the second engagement piece is sewn at any position of the stitch line in the cover of the other combination member, and the position near the boundary portion in the pad of the other combination member, A second engaged portion that engages with the second engagement piece is provided at a position corresponding to the stitch line of the corresponding one of the combination members.
Then, the first engaging piece is engaged with the first engaged portion, the second engaging piece is engaged with the second engaged portion, and the boundary portion of the one combination member The stitch line of the other combination member and the stitch line of one combination member are positioned at the boundary portion of the other combination member.

According to the second aspect of the invention, the stitch line can be appropriately positioned so as to continuously appear across the two combination members.
Moreover, since the stitch line of both the combination member of the position of the stitch line of one combination member and the position of the stitch line of the other combination member can be positioned, it can position more accurately.

  Next, a third invention of the present invention is the stitch line positioning structure according to the first invention or the second invention, wherein the first engaged portion, or the first engaged portion and the The second engaged portion is formed of resin or metal as a separate member from the pad, and the corresponding position in the pad of one combination member, or the pad of one combination member and the other combination member Are provided at corresponding positions on the pad.

  According to the third aspect of the present invention, the first engaged portion and the second engaged portion can be appropriately formed, and ensuring the rigidity is easy and the degree of freedom in the arrangement position is large. Convenient.

It is a figure explaining one embodiment of vehicle seat 1 to which the stitch line positioning structure of the present invention is applied. It is a figure explaining the example of headrest pad 10B and headrest cover 10C, seat back pad 20B, and seat back cover 20C. It is a figure explaining the state which sewn the 1st engagement piece 10LP to the edge part of the stitch lines 11FS and 11LS performed in parallel with the joint line 12B with the skin pieces 11F and 11LS of the headrest cover 10C. The position of the stitch line 11LS (and stitch line 21LS) of the headrest portion 10 (and the seat back portion 20) is set to the first engaging piece 10LP and the first engaged portion 14L (and the second engaging piece 20LP and the second engaged portion). It is a figure explaining the state positioned by the joint part 24L). It is a figure explaining the conventional example of a stitch line positioning structure.

EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing. 1A and 1B show an embodiment of a vehicle seat 1 to which a stitch line positioning structure of the present invention is applied. The stitch line positioning structure of the present invention is not limited to a vehicle seat, and can be applied to various combination members used in combination.
The stitch line is a seam in which a line shape is drawn to be exposed on the surface for decoration.

● [Example of structure of vehicle seat 1 (Fig. 1)]
The vehicle seat 1 shown in the example of FIG. 1A includes a seat cushion portion 30 where the occupant sits down, a seat back portion 20 where the occupant leans his back, and a headrest portion 10 where the occupant leans his head. It is configured by combining these as the main body, and is equipped on vehicles such as automobiles. The surface of the vehicle seat 1 that the occupant contacts in a normal seating state is formed by a pad member (not shown) such as foamed urethane, and the seat cushion is covered by a cover that follows the outer shape of the pad member. Each of the part 30, the seat back part 20, and the headrest part 10 is mounted.
In the example shown in FIG. 1 (A), the seat cushion portion 30 is covered with a seat cushion cover provided with stitch lines 31FS, 31LS, etc., and the seat back portion 20 is provided with stitch lines 21FS, 21LS, etc. The seat back cover 20 </ b> C is mounted (see FIG. 2), and the headrest portion 10 is mounted (see FIG. 2) with the headrest cover 10 </ b> C provided with stitch lines 11 </ b> FS, 11 </ b> LS and the like.

Hereinafter, the stitch line positioning structure of the present invention will be described as an example of two combination members in which the headrest portion 10 and the seat back portion 20 of the vehicle seat 1 shown in FIG. As shown in FIG. 2, the headrest part 10 is composed of a headrest pad 10B and a headrest cover 10C that covers the headrest pad 10B, and the seat back part 20 is a seat that covers the seat back pad 20B and the seat back pad 20B. The back cover 20C is used.
In the vehicle seat 1 shown in the examples of FIGS. 1A and 1B, stitch lines 11FS and 11LS applied to a headrest cover 10C (see FIG. 2) that covers the headrest portion 10 and a seat back portion 20 are mounted. The stitch lines 21FS and 21LS applied to the seat back cover 20C (see FIG. 2) appear continuously across the headrest portion 10 and the seat back portion 20 at the boundary portion KL (see FIG. 1B). Thus, the positions of the stitch lines 11FS, 11LS, 21FS, and 21LS are described.
In addition, when the positions of the stitch lines 11FS and 11LS and the stitch lines 21FS and 21LS do not appear to be greatly shifted and continuous at the boundary KL, the decoration is not so preferable.

The stitch lines 11FS, 11LS, 21FS, and 21LS are formed on a complicated three-dimensional curved surface as shown in FIGS. 1 and 2, and a resin thin plate as shown in FIGS. 5 (A) and 5 (B). The conventional method of sewing 120 along the stitch line is very difficult, and the resin thin plate 120 may be deformed or damaged. Further, even if the resin thin plate 120 is sewn to the stitch lines 11FS and 21FS having a relatively long distance as shown in the example of FIG. 1A, this cover is attached to the headrest pad 10B (see FIG. 2) or the seat back pad 20B. It is very difficult to cover (see FIG. 2).
In the stitch line positioning structure of the present invention described below, even in the case of a stitch line formed in a complicated three-dimensional shape or a stitch line having a relatively long distance, the boundary portion between two combination members used in combination is used. Stitch lines can be properly positioned.

● [Stitch line positioning structure (Figs. 2 and 3)]
As shown in the example of FIG. 2, the stitch line positioning structure of the present invention is an engagement that is sewn at any position where a stitch line is applied in the headrest cover 10C and the seat back cover 20C where the stitch line is applied. It is comprised by the to-be-engaged part 14L, 14R, 24L, 24R provided in each position corresponding to each engagement piece in the piece 10LP, 10RP, 20LP, 20RP and the headrest pad 10B and the seat back pad 20B.
3A to 3C exemplify an engagement piece 10LP (corresponding to a first engagement piece) that is sewn to the joint 12B with the skin pieces 11F and 11L in the headrest cover 10C.

Next, the engagement piece 10LP will be described with reference to FIGS.
In the example shown in FIG. 3A, the engagement piece 10LP is stitched to the end of the joint 12B between the skin piece 11F and the skin piece 11L (the end of the stitch lines 11FS and 11LS applied to the headrest cover 10C). It is sewn with a thread 16. In this example, the edge of the skin piece 11F and the edge of the skin piece 11L are sewn with the suture thread 15, and the stitch lines 11FS and 11LS parallel to each other along the joint 12B between the skin piece 11F and the skin piece 11L are formed. An example is given.
Note that the engagement piece 10LP is not limited to the end portion of the stitch line, and may be sewn at any position on the stitch line corresponding to the engaged portion 14L as the engagement destination. For example, the stitch line 11LS may be sewn to the end of the stitch line as shown in FIG. 3 or the seam piece 11T of the headrest cover 10C and the seam 12C of the 11L (see FIG. 1B) in FIG. It may be sewn at a position (sewing allowance portion).
The engagement piece 10LP is, for example, a resin molded product (for example, an injection-molded product) having a tip portion PS formed in a wedge shape. For example, as shown in FIG. 3, the end of stitch lines 11FS and 11LS applied to the headrest cover 10C. It is very easy to sew the part with a suture 16.
Then, as shown in FIGS. 3B and 3C, the auxiliary piece 11 </ b> LH is sewn to the skin pieces 11 </ b> F and 11 </ b> L with the suture thread 17. The overall schematic shape of the headrest cover 10C in this state is as shown in FIG.
Note that the engagement pieces and the auxiliary pieces are also sewn in the same manner at other locations (such as the location of the auxiliary piece 11RH) in the headrest cover 10C and locations (such as the locations of the auxiliary pieces 21LH and 21RH) in the seat back cover 20C.

Next, the engaged parts (14L, 14R, 24L, 24R) that are the engagement destinations of the engagement pieces (engagement pieces 10LP, etc.) will be described with reference to FIG.
Engaged portions 14L and 14R for each of the engagement pieces 10LP and 10RP (corresponding to the first engagement piece) sewn on the cover that covers one of the combination members (in this case, the headrest cover 10C that covers the headrest pad 10B). (Corresponding to the first engaged portion) is a position in the vicinity of the boundary portions (boundary portions KL and KR in FIG. 1) of the one combined member with the other combined member (in this case, the seat back portion 20). Thus, it is provided at a position corresponding to the stitch line of the other corresponding combination member. In addition, it is more preferable to provide an insertion port for the engaged portions 14L and 14R at a position that is hidden when the two combination members are combined, because the user does not feel a foreign object.
Further, the engagement pieces 20LP and 20RP (corresponding to the second engagement piece, see FIG. 4) sewn on the cover (in this case, the seat back cover 20C covering the seat back pad 20B) covering the other combination member. The engaged parts 24L and 24R (corresponding to the second engaged parts) corresponding to the respective parts are boundary parts (boundary parts in FIG. 1) with one combination member (in this case, the headrest part 10) in the other combination member. KL, KR) in the vicinity of the stitch line of the corresponding one of the combination members. In addition, it is more preferable to provide an insertion port for the engaged portions 24L and 24R at a position that is hidden when the two combination members are combined, because the user does not feel a foreign object.

In the example shown in FIG. 2, each of the engaged portions 14L, 14R, 24L, and 24R is formed as a member separate from the pad with resin (for example, injection molded product) or metal, and the engagement piece. This is a member formed with an insertion opening having a structure in which the distal end portion can be inserted and prevents the inserted distal end portion from coming off, and is embedded at corresponding positions in the headrest pad 10B and the seat back pad 20B.
The engaged portion only needs to be fixed at the corresponding position in the headrest pad 10B and the seat back pad 20B, and may be only embedded, or firmly fixed to the seat frame. Also good. Further, even if the engaged portion is not configured as a tangible component (a member separate from the pad), the hardness of the pad member (foamed urethane, etc.) at the corresponding position in the headrest pad 10B or the seat back pad 20B. It may be formed with a hardness higher than the hardness of the surrounding pad member, and it may be configured integrally with the pad by forming an insertion port in the pad of the high hardness part, and the engaged engagement piece will not come out As long as it can be held,

● [Engagement pieces (10LP, 20LP) engaged with engaged parts (14L, 24L) (FIG. 4)]
Next, referring to FIG. 4, each of the engagement piece 10LP sewn on the headrest cover 10C and the engagement piece 20LP sewn on the seat back cover 20C is engaged with the engaged portion 14L provided on the headrest pad 10B, The state engaged with each of the engaged portions 24L provided on the seat back pad 20B will be described.

The engagement piece 10LP sewn to the end of the stitch line 11LS of the headrest cover 10C is engaged with the engaged portion 14L provided on the headrest pad 10B, and the headrest cover 10C is stretched and the stitch line The position of the end portion in 11LS (position in the vicinity of the boundary portion KL) is positioned at the position of the engaged portion 14L. In this case, the position of the end portion of the stitch line 11LS is positioned so as not to shift in either the direction orthogonal to the stitch line 11LS or the direction along the stitch line 11LS.
Further, the engagement piece 20LP sewn to the end of the stitch line 21LS of the seat back cover 20C is engaged with the engaged portion 24L provided on the seat back pad 20B, and the seat back cover 20C has tension. At the same time, the position of the end of the stitch line 21LS (position near the boundary KL) is positioned at the position of the engaged portion 24L. In this case, the position of the end portion of the stitch line 21LS is positioned so as not to deviate in either the direction orthogonal to the stitch line 21LS or the direction along the stitch line 21LS.
Accordingly, the stitch line is positioned so that the stitch line 11LS and the stitch line 21LS can be seen continuously across the two combination members (in this case, the headrest portion 10 and the seat back portion 20).

As described above, in the stitch line positioning structure described in the present embodiment, since it is positioned in both the direction perpendicular to the stitch line and the direction along the stitch line at the boundary portion between the two combination members, It can be positioned properly.
Further, it is only necessary to sew a small engagement piece and to provide a small engaged portion, and the stitch line can be positioned with fewer man-hours.
Moreover, positioning at the boundary portion of the combination member can be more easily performed with respect to the stitch line formed on the three-dimensional curved surface.
In addition, it is more preferable that the insertion port of the engaged portion is provided at a position that is hidden when the two combination members are combined, so that a bulge or the like that gives the user a feeling of foreign matter is not created.
In the above description, the example in which the engagement piece and the engaged portion are provided on each of the two combination members (the headrest portion 10 and the seat back portion 20) has been described. However, at least one of the engagement piece and the engaged portion is provided. A joint may be provided.

The stitch line positioning structure of the present invention is not limited to the appearance, configuration, structure and the like described in the present embodiment, and various changes, additions, and deletions can be made without changing the gist of the present invention.
In addition, the stitch line positioning structure described in the present embodiment is not limited to the headrest and seat back of a vehicle seat, and stitch lines are applied to each of two combination members used in combination. Anything can be applied.
Further, the tip shape of the engagement piece and the shape of the space of the engaged portion into which the engagement piece is inserted are not limited to the wedge-shaped arrowhead shape described in the present embodiment, Various shapes, such as a spherical shape, can be easily fitted and difficult to be removed.

DESCRIPTION OF SYMBOLS 1 Vehicle seat 10 Headrest part 10B Headrest pad 10C Headrest cover 10LP, 10RP Engagement piece (1st engagement piece)
11F, 11L, 11T Skin piece 11FS, 11LS Stitch line 12B, 22B Seam 14L, 14R Engaged part (first engaged part)
20 seat back portion 20B seat back pad 20C seat back cover 21F, 21L skin piece 21FS, 21LS stitch line 20LP, 20RP engaging piece (second engaging piece)
24L, 24R engaged portion (second engaged portion)
30 Seat cushion part 31FS, 31LS Stitch line KL, KR Boundary part

Claims (3)

A combination of two combination members composed of a pad and a cover covering the pad is used, and the stitch line applied to each cover is continuous across the two combination members by combining the combination members. In the stitch line positioning structure for positioning the stitch line at the boundary between the two combination members,
The first engagement piece is sewn at any position of the stitch line in the cover of at least one combination member, and the position is in the vicinity of the boundary portion in the pad of the one combination member. A first engaged portion that engages with the first engagement piece is provided at a position corresponding to the stitch line of the other combination member.
The first engagement piece is engaged with the first engaged portion, and the stitch line of one combination member is positioned with respect to the position of the stitch line of the other combination member at the boundary portion of the one combination member. To
Stitch line positioning structure. A combination of two combination members composed of a pad and a cover covering the pad is used, and the stitch line applied to each cover is continuous across the two combination members by combining the combination members. In the stitch line positioning structure for positioning the stitch line at the boundary between the two combination members,
The first engagement piece is sewn at any position on the stitch line in the cover of the one combination member, and the position is in the vicinity of the boundary portion in the pad of the one combination member. A first engaged portion that engages with the first engagement piece is provided at a position corresponding to the stitch line of the other combination member,
The second engagement piece is sewn to any position of the stitch line in the cover of the other combination member, and is a position in the vicinity of the boundary portion in the pad of the other combination member. A second engaged portion that engages with the second engagement piece is provided at a position corresponding to the stitch line of one of the combination members,
The first engagement piece is engaged with the first engaged portion, the second engagement piece is engaged with the second engaged portion, and the boundary portion of the one combination member and the Positioning the stitch line of the other combination member and the stitch line of the one combination member at the boundary portion of the other combination member;
Stitch line positioning structure. The stitch line positioning structure according to claim 1 or 2,
The first engaged portion, or the first engaged portion and the second engaged portion are formed of a resin or metal as a separate member from the pad. A corresponding position on the pad, or a corresponding position on the pad of one combination member and the pad of the other combination member,
Stitch line positioning structure.

Images