JP2013162957A - Structural member of vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a structural member of a vehicle in which a stitched part is formed with good performance by a simpler method.SOLUTION: Through-holes 20 are disposed in a position different from a formation position of a stitched part, skin materials 6S are formed to the formation position of the stitched part such that two or more pores 30 of penetration or non-penetration are displayed, the two or more pores 30 are made to be an opening shape different from the through-holes 20 respectively, and a yarn material is passed through all or a part of the two or more pores.

Description

  The present invention relates to a vehicle component provided with a skin material (such as leather or nonwoven fabric) having a stitch portion and a through hole.

As a constituent member of this type of vehicle, a vehicle seat disclosed in Patent Document 1 is known. The vehicle seat includes a cushion material that forms an outer shape of the seat and a skin material that covers the cushion material.
The skin material is formed by stitching a plurality of skin pieces into a bag shape, and has a leather disposed on the most surface side and a plurality of through holes. The plurality of through-holes are portions that penetrate the leather in the thickness direction, are formed on the entire leather surface by a punch mechanism, and are spaced apart at appropriate intervals.
In the known technique, a bag-shaped skin material is produced while stitching adjacent skin pieces together with a thread material (forming a first stitch portion). Moreover, the design property of a sheet | seat is improved by forming a 2nd stitch part in the linear form on the seating side of a skin material. At this time, each stitch portion can be formed with good appearance by drawing in advance on the skin material (formation position of each stitch portion).

Registered Utility Model No. 3119792

By the way, in the known technique, the formation work of each stitch portion is slightly troublesome because it is drawn on the skin material (the structure is inferior in workability).
Further, in the known technique, in order to prevent yarn breakage (breakage) in the stitch portion by the punch mechanism, each stitch portion is formed after forming a through hole in each skin piece. For this reason, during the formation of each stitch portion, each stitch portion may meander due to a thread material falling into a nearby through hole (a through hole located away from the stitch position) (design) Tend to be inferior composition).
Of course, it is not necessary to provide a through hole at the position where the stitch portion is formed. However, if it does so, the formation location of a through-hole and the non-formation location of a through-hole will be clearly separated, and it will be easy to have a bad influence on the designability of a skin material.
The present invention has been made in view of the above-described points, and a problem to be solved by the present invention is to form a stitch portion with high performance by a simpler technique.

As means for solving the above-mentioned problems, the constituent member of the vehicle of the first invention has a skin material such as leather or nonwoven fabric capable of forming a through hole.
And while forming a plurality or single through-holes in the skin material, the stitch portion made of the thread material is formed in a linear shape, but with this type of configuration, the stitch portion is improved in performance by a simpler method. It is desirable that it can be formed.

Therefore, in the present invention, the above-described through-hole is provided at a position different from the formation position of the stitch portion, and a plurality of holes that penetrate or do not penetrate the skin material are provided side by side at the formation position of the stitch portion. Each of the plurality of hole portions has an opening shape different from that of the through hole, and the stitch portion is formed while the thread material is passed through all or part of the plurality of hole portions.
In the present invention, since the stitch portion is formed while passing the thread material through the plurality of holes arranged at the stitch portion formation position, meandering of the stitch portion can be avoided as much as possible (becomes excellent in design).
Further, in the present invention, since the plurality of hole portions have an opening shape different from that of the through holes, the formation positions of the stitch portions become relatively clear (for example, drawing as a mark becomes unnecessary).

The constituent member of the vehicle of the second invention is the constituent member of the vehicle of the first invention, and the plurality of holes are set to have dimensions larger than the through-holes when viewed in the direction in which the stitch portions extend.
In the present invention, the plurality of hole portions are enlarged to facilitate the passage of the stitch portion (thread material), so that the stitch portion can be formed with better workability.

  The structural member of the vehicle of the third aspect of the invention is the structural member of the vehicle of the first aspect or the second aspect of the invention, because the thread material that passes through the hole portion can be sewn to the sewing portion of the skin material, so that the stitch portion is stable. It can be formed well.

  According to the first aspect of the present invention, the stitch portion can be formed with good performance by a simpler method. According to the second invention, the stitch portion can be formed with better workability. And according to the 3rd invention, a stitch part can be formed more stably.

It is a perspective view of a vehicle seat. It is a perspective view of the skin material of a seat back. It is a front view of a part of skin material. (A) is sectional drawing of the skin material part fractured | ruptured by the IV-IV line of FIG. 3, (b) is sectional drawing of the skin material part concerning a modification. It is a perspective view which partially fractures and shows the skin material which has a 1st stitch part. It is a perspective view which partially cuts and shows the skin material which has a 2nd stitch part. It is a perspective view which fractures | ruptures and shows the skin material which has another 2nd stitch part.

Hereinafter, embodiments for carrying out the present invention will be described with reference to FIGS. In each figure, a reference symbol F is attached to the front of the vehicle seat, a reference symbol B to the rear of the vehicle seat, a reference symbol UP to the upper side of the vehicle seat, and a reference symbol DW to the lower side of the vehicle seat. In addition, in each figure, illustration of a through-hole and a hole part may be abbreviate | omitted for convenience.
The vehicle seat 2 in FIG. 1 has a seat cushion 4, a seat back 6, and a headrest 8. Each of these seat constituent members includes a frame member (4F, 6F, 8F) that forms a seat skeleton, a cushion material (4P, 6P, 8P) that forms the outer shape of the seat, and a skin material (4S, 6S, 8S).

The seat back 6 is a member that is connected to the seat cushion 4 so as to be tiltable, and has a basic configuration (6F, 6P, 6S), a seating portion 6a, and a bank portion 6b (see FIGS. 1 and 2). ).
The seating portion 6a is a recessed position at the center of the seat back 6 (seat side) and serves as a seating position for an occupant (not shown). The bank portion 6b is a convex portion on both sides of the seating portion 6a.

In this embodiment, the cushion material 6P is disposed on the frame member 6F and then covered with the skin material 6S. And the designability etc. of a sheet | seat are improved by providing the skin material 6S with the several through-hole 20 and several stitch part (the 1st stitch part 51 and the 2nd stitch part 52) (details of each structure are mentioned later) ).
For example, in the present embodiment, the first stitch portion 51 is formed on the upper portion of the seat back 6 in a curved shape along the outer shape of the seat. Further, a plurality of second stitch portions 52 are formed on the seating side of the seat back 6 in a straight line extending in the seat width direction (in each drawing, only a part of the stitch portions is provided with a reference for convenience).
In this type of configuration, it is desirable that the stitch portions 51 and 52 can be formed with good performance by a simpler method.
Therefore, in the present invention, the stitch portions 51 and 52 are formed with good performance by a simpler method with the configuration described later. Hereinafter, each configuration will be described in detail.

[Skin material]
The skin material 6S has a surface material 10, a pad material 12, a backing material 14, and a configuration described later (through hole 20, hole portion 30, sewing portion 40, stitch portions 51, 52) (FIGS. 1 to 5). 4).
The surface material 10 is a planar member capable of forming a through hole 20 (described later), and constitutes the seating side of the surface material 6S. Although the surface material 10 (material) is not particularly limited, it is preferably a material (typically a material made of non-woven knitted fabric) that is not wire-transmitted due to the formation of the through-hole 20, and leather (natural leather, synthetic leather) or non-woven fabric is used. It can be illustrated.
The pad material 12 is a planar member disposed on the back surface of the front material 10 and can be formed of a foamed resin such as slab urethane. The backing material 14 is a planar member disposed on the back surface of the pad material 12, and can be exemplified by a fabric (woven fabric, knitted fabric, nonwoven fabric), leather, or a resin layer.
In the present embodiment, the skin material 6S is created by laminating the surface material 10, the pad material 12, and the backing material 14 in this order. At this time, the front material 10, the pad material 12, and the backing material 14 can be integrated in whole or in part by bonding, laminating, or the like. In addition, the air permeability of the surface material 10 can be suitably ensured by making the surface material 10 (the location where a through hole described later) and the pad material 12 are not bonded.

The skin material 6S of the present embodiment can be formed by sewing a plurality of skin pieces (for example, the first piece SP1 to the fourth piece SP4) into a bag shape (see FIGS. 1, 2 and 5, etc.). Details will be described later).
Here, the first piece SP1 is a vertically long (relatively wide) piece that can cover the lower portion of the seating portion 6a. The second piece SP2 is a vertically long (relatively narrow) piece that can cover the upper portion of the seating portion 6a. The third piece SP3 is a rectangular (horizontal) piece and can cover the bank portion 6b. The fourth piece SP4 is a rectangular (vertically long) piece and can cover the rear surface of the seat back 6.

(Through hole)
The through-hole 20 is a hole portion that penetrates the surface material 10 (leather or the like) in the thickness direction, and a plurality or a single number can be formed in the surface material 10 (in FIG. 3, only a part of the through-holes are provided with symbols for convenience) .
Here, the shape (opening shape) of the through-hole 20 is not particularly limited, but is a polygonal shape such as a circle, an ellipse, a triangle or a rhombus, a rectangular shape having an arcuate end (long hole shape), or a cross shape. Can be illustrated. In addition, when forming the several through-hole 20, the shape of all the through-holes 20 can be made the same, and it can also be set as a different shape.
The diameter D1 of each through hole 20 is not particularly limited, but is relatively small (typically 0.5 to 1.5 mm).
In the present embodiment, all of the plurality of through holes 20 are formed in the surface material 10 at appropriate intervals while being substantially circular (in front view). At this time, the plurality of through holes 20 are formed in a part of the surface material 10 (parts different from the formation positions of stitch portions 51 and 52 described later).
Here, the method for forming the through hole 20 is not particularly limited, and examples thereof include a punch mechanism (physical means) and a laser (optical means).

(Hole)
The plurality of hole portions 30 of the present embodiment are hole portions that respectively penetrate the surface material 10 and can be formed side by side at the formation positions of the respective stitch portions 51 and 52 (described later) (see FIGS. 3 and 4A). In FIG. 3, for convenience, only some of the holes are provided with reference numerals).
For example, a plurality of hole portions 30 can be formed in the first piece SP1 and the second piece SP2 (formation position of the second stitch portion 52) in a straight line in the sheet width direction (see arrow X in FIG. 3). ).
Similarly, a plurality of holes 30 (not shown) can be formed side by side in a curved shape in the upper part of the seat back 6 (formation position of the first stitch part 51) (see FIGS. 2 and 5).
Here, the formation method of the hole 30 is not particularly limited, but the same formation method (punch mechanism, laser) as the through hole can be exemplified. And the formation process of the skin material 6S can be simplified by performing the formation operation of the hole 30 simultaneously with the formation operation of the through hole 20.

(Hole shape)
Each of the plurality of hole portions 30 has a shape (opening shape or external dimension) different from that of the through hole 20, and can be exemplified by a circular shape, an elliptical shape, a polygonal shape, a long hole shape, and a symbol shape.
Here, by making all of the plurality of hole portions 30 have the same shape, it can be clearly distinguished from the through-hole 20 (a suitable mark when forming the stitch portion). At this time, each hole 30 is formed in a shape (an oblong shape, an elliptical shape, a rhombus shape, etc.) in which the opening size gradually decreases toward the end portion 30a, and the end portion 30a is formed at the positions where the stitch portions 51 and 52 are formed. It is preferable to arrange on top. Then, the thread material (51a, 52a, etc., described in detail later) of each stitch portion is passed through the hole 30 and then tightened, whereby each stitch portion 51, 52 is correctly placed on the end portion 30a (on a predetermined formation position). (See FIGS. 3, 5 and 6).
The hole 30 of this embodiment is in the shape of a long hole, and the dimension D2 seen in the extending direction of each stitch part 51, 52 (described later) is set larger than the dimension D1 of the through hole 20 (see FIG. 3). . By increasing the dimension D2 of the hole 30 in this manner, the stitch portions 51 and 52 (thread material) can be easily passed (the structure is excellent in workability).

(Sewing part)
The sewing portion 40 is a portion where the thread material passing through the hole portion 30 can be sewn, and can be formed on the constituent members (the surface material 10, the pad material 12, etc.) of the skin material 6S (see FIG. 4).
In this embodiment, the portion of the pad material 12 exposed from the hole 30 can be used as the sewing portion 40 (see FIG. 4A). The stitch portions 51 and 52 can be formed with good stability by sewing the thread material (51a, 52a, etc., details will be described later) of each stitch portion to the sewing portion 40 while passing through the hole portion 30.

(Modification)
The hole is not limited to the above-described form, and can take other various configurations (see FIG. 4B).
For example, in this modification, the plurality of hole portions 30A can be formed as non-penetrating recessed portions. At this time, the side surface 31 of the hole 30A can be inclined (tapered) toward the center position. And each meandering of each stitch part 51 and 52 can be avoided as much as possible by guide | inducing each stitch part 51 and 52 from the side surface 31 (taper shape) of the hole 30A to a center position. In this modification, the bottom surface of the hole 30 </ b> A (non-penetrating recess portion) can be used as the sewing portion 40.

(Stitch part)
The plurality of stitch portions (the first stitch portion 51 and the second stitch portion 52) are each a linear seam portion made of a plurality or a single thread material (see FIGS. 1, 2, and 5 to 7). .
Examples of the configuration (seam type) of the stitch portions 51 and 52 include main sewing, single ring sewing, double ring sewing, and flat stitching. In particular, the main stitch is difficult to unravel because the configuration of the stitches is independent for each stitch.
In the present embodiment, the first stitch portion 51 and the second stitch portion 52 are formed by main stitching using a plurality of thread materials (upper thread, lower thread) (details will be described later). The first stitch portion 51 is formed by an upper thread 51a and a lower thread 51b, and the second stitch portion 52 is formed by an upper thread 52a and a lower thread 52b.
Here, the method of forming the stitch portions 51 and 52 is not particularly limited, but can typically be formed by hand-sewing or a sewing machine.

[Forming skin material]
With reference to FIG. 1, FIG. 5 and FIG. 6, the first stitch portion 51 and the second stitch portion 52 are formed while stitching the respective skin pieces SP1 to SP4 in a bag shape.
In this embodiment, the stitch portions 51 and 52 can be formed with good workability by using the plurality of hole portions 30 (a shape different from the through hole 20) as a mark.
For example, when the upper portion of the seat back 6 is formed, the upper ends of the second pieces SP2 and the upper ends of the fourth pieces SP4 are overlapped and stitched together (see FIGS. 1 and 5). At this time, the first stitch portion 51 can be formed by crossing the lower yarn 51b while sequentially passing the upper yarn 51a through the plurality of hole portions 30 of the second piece SP2 (by forming the intersecting portion 53).
Similarly, a plurality of second stitch portions 52 are formed in the seating portion 6a (for example, the first piece SP1) (see FIGS. 1, 3, and 6). At this time, the second stitch portion 52 can be formed by crossing the lower thread 52b while passing the upper thread 52a sequentially through the hole 30 of the first piece SP1.

Here, in the above-described configuration, it is preferable to form the intersecting portion 53 of the upper thread 51a (52a) and the lower thread 51b (52b) inside (the back side) of the skin material 6S (see FIGS. 5 and 6). . By doing so, the intersecting portion 53 is made as inconspicuous as possible when viewed from the front material 10, and the first stitch portion 51 (second stitch portion 52) can be formed with good appearance.
Further, the second stitch portion 52 can be formed with good appearance, for example, by forming the intersecting portion 53 on the back surface side of the skin material 6S (see FIG. 7).

As described above, in the present embodiment, the stitch portions 51 and 52 are formed while the thread material is passed through the plurality of hole portions 30, and therefore, the meandering of the stitch portions 51 and 52 can be avoided as much as possible (the configuration having excellent design properties) Become). At this time, the workability can be further improved by enlarging the plurality of hole portions 30 to facilitate the passage of the stitch portions 51 and 52 (thread material).
Further, in this embodiment, the stitch portions 51 and 52 can be formed with a plurality of hole portions 30 (opening shapes different from the through-holes 20) as marks (having a configuration excellent in workability). For this reason, when forming each stitch part 51 and 52 by hand-sewing, for example, each stitch part 51 and 52 can be formed, without producing meandering etc. as much as possible.
Further, in the present embodiment, the formation location of the through hole 20 and the formation location of the hole portion 30 give the same impression in appearance, so that a uniform impression can be given to the skin material 6S.
Further, in the present embodiment, the process of forming the through-hole 20 can be performed simultaneously with the process of forming the hole 30 to simplify the production process of the skin material 6S (productivity is improved).
In this embodiment, since the stitch portions 51 and 52 passing through the hole 30 can be sewn to the sewing portion 40, the stitch portions 51 and 52 can be formed with good stability.
Therefore, according to the present embodiment, the stitch portions 51 and 52 can be formed with high performance by a simpler method.

<Modification>
The configuration of this embodiment can be applied to various seat constituent members in addition to the seat back 6 (see FIG. 1).
For example, in this modification, the skin material 4S of the seat cushion 4 includes a plurality of through holes (not shown), a plurality of holes (not shown), and a plurality of stitch portions 51A and 52A.
The first stitch portion 51 </ b> A has a curved shape along the outer shape of the seat and is formed at the upper edge portion of the seat cushion 4. The second stitch portion 52A is formed in a straight line extending in the seat width direction, and a plurality of second stitch portions 52A are formed at the center (seat portion) of the seat cushion 4.
Therefore, also in this modification, a plurality of holes (not shown) are formed side by side at the formation positions of the stitch portions 51A and 52A. Then, the stitch portions 51A and 52A are formed with good design while using a plurality of holes (not shown) as marks. For this reason, also by this modification, each stitch part 51A, 52A can be formed with sufficient performance by a simpler method.

The components of the vehicle according to the present embodiment are not limited to the above-described embodiments, and can take other various embodiments.
(1) In the present embodiment, the thread material (51a, 52a, etc.) is passed through all of the plurality of holes 30, but the thread material may be passed through at least a part of the plurality of holes 30. it can. For example, every other thread material can be passed through the hole (there is no need to accurately match the spacing between the holes to the pitch of the stitches).
(2) In the present embodiment, the shape of each stitch portion 51, 52, etc. has been exemplified, but the shape of the stitch portion is not limited. For example, the stitch portion can take various shapes such as a straight shape, a wave shape, a zigzag shape, a circular shape, and a spiral shape according to the sheet configuration. Moreover, the vehicle seat can have a plurality or a single stitch portion.

(3) Moreover, in this embodiment, the example which forms the some hole part 30 at substantially equal intervals according to the pitch of each stitch part 51 and 52 was demonstrated. Unlike this, the plurality of hole portions 30 can be formed at irregular intervals according to the pitch of the stitch portions.
(4) Moreover, in this embodiment, although the structure which has the surface material 10, the pad material 12, and the backing material 14 was illustrated as the skin material 6S, it is not the meaning which limits the structure of the skin material 6S. For example, the skin material 6 </ b> S can be configured by only the surface material 10.
(5) In the present embodiment, the example in which the sewing portion 40 is provided in the skin material 6S has been described, but the sewing portion may be omitted.

(6) Moreover, in this embodiment, although the seat back 6 and the seat cushion 4 were illustrated as a structural member of a vehicle, it is not the meaning which limits the same structural member. For example, various structural members such as various seat structural members such as the headrest 8, instrument panel, door, and ceiling can be exemplified as the structural members of the vehicle.

DESCRIPTION OF SYMBOLS 2 Vehicle seat 4 Seat cushion 6 Seat back 8 Headrest 6a Seat part 6b Bank part 6S Skin material 10 Surface material 12 Pad material 14 Back material 20 Through-hole 30 Hole part 40 Sewing part 51 First stitch part 52 Second stitch part

Claims (3)

In a vehicle component having a configuration in which a stitch portion made of a thread material is formed in a linear shape while forming a plurality of or a single through hole in a skin material such as leather or nonwoven fabric that can form a through hole,
The through hole is provided at a position different from the formation position of the stitch portion, and at the formation position of the stitch portion, a plurality of holes that penetrate or do not penetrate the skin material are provided side by side,
A configuration of a vehicle in which the plurality of hole portions have opening shapes different from the through holes, and the stitch portions are formed while passing the thread material through all or a part of the plurality of hole portions. Element.   The vehicle component according to claim 1, wherein the plurality of holes are set to have dimensions larger than the through-holes when viewed in a direction in which the stitch portions extend. The structural member of the vehicle according to claim 1 or 2, wherein the thread material passing through the hole portion can be sewn to a sewn portion of the skin material.

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