JP2014069613A - Leather-wrapped steering wheel - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a leather-wrapped steering wheel improved in design.SOLUTION: Opposing end edges 59 and 89 are stitched together while leathers 50 and 70 are wound on the front surface side of a ring 11 dripped during steering. Two threads, namely, stitching threads 91 and 92 for stitching the opposing end edges of one end edge side 59 and the other end edge 89 ae used to be different in design. One stitching thread 91 penetrates one end edge 59 and the other stitching thread 92 penetrates the other end edge 89. Both stitching threads 91 and 92 cross each other and are reversed to be locked each other. Then, returning to the penetrated end edges 59 and 89, stitching is performed. Thus, the opposing end edges 59 and 89 are stitched together.

Description

  The present invention relates to a skin-wrapped steering wheel for steering a vehicle, and more particularly to a skin-wrapped steering wheel whose design can be improved by a suture.

  Conventionally, in a leather-wrapped steering wheel, the leather is provided on the surface side of the ring portion by sewing the opposite edges of the leather while winding the leather around the surface side of the ring portion gripped during steering (for example, Patent Document 1). In this leather-wrapped steering wheel, the leather edges are stitched together using two sutures, and the sutures penetrate the leather edge sides of one and the other, respectively, and then cross each other. The edge side opposite to the edge side before the intersection was penetrated, and this state was sequentially repeated to stitch the edges together.

JP 2009-165651 A

  However, in the conventional leather-wrapped steering wheel, the two sutures to be used are exposed one after the other along the edge on one side of the leather edge, in other words, , Because one suture penetrates one edge side, then moves to the other edge side and penetrates, the two sutures simply cross each other and cross over both edge sides There was a problem in improving the design by simply stitching.

  The present invention solves the above-described problems, and an object of the present invention is to provide a leather-wrapped steering wheel that can improve design properties.

<Explanation of Claim 1>
The leather-wrapped steering wheel according to the present invention is a leather-wrapped steering wheel in which the leather is wound around the surface side of the ring portion gripped during steering, and the opposite edges of the leather are stitched together to provide the leather. ,
Two sutures are used to sew the opposite edges of one end side and the other end side of the leather, and the design is different from each other.
One suture penetrated one edge and the other suture penetrated the other edge. The two sutures crossed and inverted and locked each other. In this state, each of the opposite edges of the leather is stitched together as stitches that return to the penetrating edge sides and penetrate the respective edge sides.

  In the leather-wrapped steering wheel according to the present invention, the two sutures are locked to each other and inverted without penetrating from the penetrating edge side to the opposite edge side, and the penetrating edge side. Returning to the step, the opposing edges are stitched together along the edges.

  In other words, the two sutures are respectively stitched between the opposite edges while being exposed along the edge at the penetrating edge side, and the opposite edges while intersecting each other as in the conventional case. Therefore, the leather is sutured in a state where the sutures on the same side are arranged on the same edge side. Therefore, since the sutures with different designs are arranged along the both ends of the leather and only on the same edge side, the designs with different sutures are arranged on the leather. It stands out at the edge and can improve the design of the ring part.

  Therefore, in the leather-wrapped steering wheel according to the present invention, the design can be improved.

<Explanation of Claim 2>
In the leather-wrapped steering wheel according to the present invention, it is desirable that one end edge side and the other end edge side are composed of leathers having different designs.

  In such a configuration, the sutures of different designs are arranged so that they are orderly aligned on the same edge side without shifting to the opposite side in the leather of the design different from each other. Therefore, the design of the ring portion is further improved by combining the design with different sutures and the design with different leather.

It is a top view of the skin-wrapped steering wheel of one embodiment of the present invention. It is a fragmentary perspective view of the ring part of the leather-wrapped steering wheel of an embodiment, and is a bottom part side perspective view of the state seen from the II direction of Drawing 1. It is a top view which shows each leather material which comprises the leather used by embodiment. It is sectional drawing of the ring part of embodiment, and respond | corresponds to the IV-IV site | part of FIG. It is a figure explaining the suturing procedure of embodiment.

  Hereinafter, an embodiment of the present invention will be described with reference to the drawings. As shown in FIG. 1, the skin-wrapped steering wheel 10 of the embodiment has an annular ring portion 11 to be gripped at the time of steering, and the center of the ring portion 11. The boss part 13 to be arranged, and a plurality of spoke parts 12 that connect the ring part 11 and the boss part 13 are configured, and as components, an airbag device 15 above the boss part 13; Other steering wheel main bodies 20 are provided.

  As shown in FIGS. 1 to 5, the steering wheel body 20 is made of a metal core 22 made of an aluminum alloy or the like disposed so as to interconnect the ring portion 11, the boss portion 13, and the spoke portion 12. And the covering layer 24 covering the ring portion 11 and the portion of the spoke portion 12 in the vicinity of the ring portion 11, the leather 40 disposed on the outer surface of the covering layer 24, and the lower surface side of the boss portion 13. And a lower cover (not shown).

  As shown in FIGS. 2 and 4, the cored bar 22 of the steering wheel main body 20 has an inverted U shape with a non-circular cross section as shown in FIGS.

  The covering layer 24 is formed from a synthetic resin such as polyurethane. The covering layer 24 is formed with a wood grain groove 26 for fitting the edge of the leather 40 on the upper surface side. In the case of the embodiment, the wood groove 26 has a front upper portion 27 and a rear upper portion 28 arranged in an annular shape along the circumferential direction of the ring portion 11 (in other words, the circumferential direction around the boss portion 13). In addition, at the positions of the spoke portions 12L and 12R, branch portions 29 and 29 that extend linearly from the front upper portion 27 toward the boss portion 13 are provided. The front upper part 27 is arranged in the part of the ring part 11 on the front part side from the left and right spoke parts 12B, 12B on the rear part side, and the rear upper part 28 is located between the left and right spoke parts 12B, 12B on the rear part side. It is arranged on the rear side of the ring part 11.

  The leather 40 is made of natural leather, synthetic leather, artificial leather, or the like. In the case of the embodiment, the leather 40 is composed of two types of first leather 50 and second leather 70 with different designs. In the embodiment, the first leather 50 is made of natural leather made of black, and the second leather 70 is made of natural leather embossed as red and formed with fine irregularities.

  Further, as shown in FIGS. 1, 2 and 3, the first leather 50 covers the outer peripheral side of the upper part 11 a from the lower part 11 b side of the ring part 11, and the second leather 70 is a boss part in the upper part 11 a of the ring part 11. It covers the inner peripheral side that is the 13th side. The first leather 50 and the second leather 70 are sutured on the inner peripheral side of the ring portion 11 by two suture threads 90 (first suture thread 91 and second suture thread 92) made of polyamide or polyester. Thus, the surface side of the coating layer 24 of the ring portion 11 is covered. The first suture 91 and the second suture 92 also have different designs. In the case of the embodiment, the first suture 91 is red, the second suture 92 is black, and both have different designs.

  Furthermore, the first leather 50 includes a front side portion 51 located on the front side of the two spoke portions 12B and 12B branched to the left and right on the rear side, a rear side portion 55 between the spoke portions 12B and 12B, It is configured with. The front side portion 51 includes a long ring cover portion 52 that covers the outer surface from the lower portion 11b of the ring portion 11 along the circumferential direction of the ring portion 11, and a spoke cover portion that covers the lower side of the left and right spoke portions 12L and 12R. 53, 54. The rear side portion 55 constitutes a ring cover portion 56 that covers the outer surface from the lower portion 11 b of the ring portion 11.

  The second leather 70 includes a front side portion 71 located on the front side between the left and right spoke portions 12L and 12B, and a left side portion 75 located from the left spoke portion 12L to the rear left side spoke portion 12B. The right side portion 79 located between the right spoke portion 12R and the rear right side spoke portion 12B, and the rear side portion 83 located between the rear spoke portions 12B, 12B are configured.

  The front side portion 71 includes a long ring cover portion 72 that covers the inner peripheral side of the upper portion 11a of the ring portion 11 along the circumferential direction of the ring portion 11, and the front side of the upper portions of the left and right spoke portions 12L and 12R. Spoke cover portions 73 and 74 that cover the surface. The left side portion 75 covers a long ring cover portion 76 that covers the inner peripheral side of the upper portion 11a side of the ring portion 11 along the circumferential direction of the ring portion 11, and a rear portion side of the upper portion of the left spoke portion 12L. And a spoke cover portion 77. The right side portion 79 follows the elongate ring cover portion 80 that covers the inner peripheral side of the upper portion 11a side of the ring portion 11 along the circumferential direction of the ring portion 11, and the rear portion side of the upper portion of the right spoke portion 12R. And a spoke cover portion 81. The rear side portion 83 includes a ring cover portion 84 that covers the inner peripheral side of the ring portion 11 on the upper portion 11a side.

  Further, the front side portion 51 of the first leather 50 has an edge on the side from which the spoke cover portion 73 is protruded on the inner peripheral side of the ring portion 11 from the two first sutures 91 and the second sutures 92. A stitching end edge 59 to be sewn to the second leather 70 is formed by the suture 90, and the edge opposite to the stitching end edge 59 is fitted to the front upper portion 27 of the graining groove 26 of the covering layer 24. It is configured as an end edge portion 57. In addition, the front end side of the spoke cover parts 53 and 54 is made into the adhesion edge part 58 adhere | attached on the boss | hub part 13 side end surface of the coating layer 24 which coat | covered the spoke parts 12L and 12R. Further, both end sides in the longitudinal direction of the front side portion 51 are also bonded edge portions 58 bonded to the end surface of the covering layer 24 of the ring portion 11 at a position hidden by the airbag device 15 in the vicinity of the rear spoke portion 12B. .

  Further, the rear side portion 55 has an edge on the inner peripheral side of the ring portion 11 as a suture end edge portion 59 that is sewn to the second leather 70 by the suture thread 90, and an edge opposite to the suture end edge portion 59. Is configured as a grained edge 57 that is fitted to the rear upper portion 28 of the grained groove 26 of the covering layer 24. Further, both end sides in the longitudinal direction of the rear side portion 55 are also bonded edge portions 58 to be bonded to the end surface of the covering layer 24 of the ring portion 11 at a position hidden by the airbag device 15 in the vicinity of the rear spoke portion 12B. Yes.

  It should be noted that a large number of suture end edges 59 of the front side portion 51 and the rear side portion 55 are arranged in advance along the suture end edge portions 59 so that the first suture 91 in the suture 90 can be easily penetrated during the stitching. Through-holes 59a are formed.

  Similarly, the front side portion 71 of the second leather 70 also has an edge on the side from which the spoke cover portions 73 and 74 are projected, on the inner peripheral side of the ring portion 11, with the front side portion 51 of the first leather 50 and the suture thread 90. A stitching edge 89 to be sewn is provided, and an opposite edge away from the stitching edge 89 is a grained edge 86 fitted to the front upper portion 27 of the graining groove 26 of the covering layer 24. The tip ends of the spoke cover portions 73 and 74 are bonded edge portions 88 that are bonded to the front side of the end surface on the boss portion 13 side of the coating layer 24 covering the spoke portions 12L and 12R. Further, the outer edge side of the spoke cover portions 73 and 74 is a grained edge portion 87 fitted to the left and right branch portions 29 and 29 of the grained groove 26 of the covering layer 24.

  The left side portion 75 of the second leather 70 is a stitching edge that stitches the edge on the side from which the spoke cover portion 77 protrudes on the inner peripheral side of the ring portion 11 with the front side portion 51 of the first leather 50 and the suture thread 90. The edge on the opposite side from the stitching edge 89 is a grained edge 86 fitted to the front upper portion 27 of the grained groove 26 of the covering layer 24. Moreover, the front end side of the spoke cover portion 77 is an adhesive edge portion 88 that is bonded to the rear side of the end surface on the boss portion 13 side of the coating layer 24 that covers the spoke portion 12L. Furthermore, the edge part away from the spoke cover part 77 is also set as the adhesion edge part 88 adhere | attached on the end surface of the coating layer 24 of the ring part 11 in the position concealed with the airbag apparatus 15 near the spoke part 12B of the back left side. . Furthermore, the outer edge side of the spoke cover part 77 is a grained edge part 87 fitted to the left branch part 29 of the grained groove 26 of the covering layer 24.

  The right side portion 79 of the second leather 70 has a stitched edge that stitches the edge of the side from which the spoke cover portion 81 is projected on the inner peripheral side of the ring portion 11 with the front side portion 51 of the first leather 50 and the suture thread 90. The edge on the opposite side from the stitching edge 89 is a grained edge 86 fitted to the front upper portion 27 of the grained groove 26 of the covering layer 24. The tip end side of the spoke cover portion 81 is an adhesive edge portion 88 that is bonded to the rear side of the end surface on the boss portion 13 side of the coating layer 24 that covers the spoke portion 12R. Furthermore, the edge part away from the spoke cover part 81 is also set as the adhesion edge part 88 adhere | attached on the end surface of the coating layer 24 of the ring part 11 in the position concealed by the airbag apparatus 15 in the vicinity of the spoke part 12B on the rear right side. . Furthermore, the outer edge side of the spoke cover part 81 is a grained edge part 87 fitted to the right branch part 29 of the grained groove 26 of the covering layer 24.

  The rear side portion 83 of the second leather 70 has an edge that becomes the inner peripheral side of the ring portion 11 as a suture end edge 89 that is sewn to the rear side portion 55 of the first leather 50 by the suture thread 90, and the suture end. The edge opposite to the edge 89 is configured as a grained edge 86 fitted to the rear upper portion 28 of the grained groove 26 of the covering layer 24. Further, both ends in the longitudinal direction of the rear side portion 83 are bonded to the end face of the covering layer 24 of the ring portion 11 at a position hidden by the airbag device 15 in the vicinity of the left and right spoke portions 12B on the rear side. , And.

  In addition, in each suture end edge portion 89 of the front side portion 71, the left side portion 75, the right side portion 79, and the rear side portion 83, the second suture 92 in the suture 90 is easily penetrated during the suturing in advance. A large number of through holes 89 a are formed along the stitching edge portion 89.

  Further, when the first leather 50 and the second leather 70 are fitted into the wood grain groove 26, before fitting into the front upper part 27, the rear upper part 28, and the left and right branch parts 29, 29 of the wood grain groove 26, The first leather 50 and the second leather 70, or the second leather 70, are sewn to each other by a wood-embedded suture thread 97 so that they can be smoothly fitted to each other, and the stitched portion is used with an adhesive. While being fitted into the wood grain groove 26, it is fixed.

  More specifically, when a leather-wrapped steering wheel is manufactured through a leather-wrapping process in which the leather 40 is wound around the outer surface of the covering layer 24, in the embodiment, first, the wood grain groove 26 between the first leather 50 and the second leather 70 is used. The parts to be fitted to each other are previously sutured with a suture 97 for embedding wood. This stitching is performed at the front upper portion 27 of the grained groove 26 with respect to the grained edge 57 of the front side 51 of the first leather 50, the front side 71, the left side 75, and the right side 79 of the second leather 70. Each of the grained edge portions 86 will be sewn.

  However, the front side portion 71 and the left side portion 75 of the second leather 70 and the front side portion 71 and the right side portion 79 are also fitted into the branching portion 29 of the grain groove 26 of the left and right spoke portions 12L and 12B. The wood grain edge portions 87 of the front side portion 71 and the left side portion 75 and the wood grain edge portions 87 of the front side portion 71 and the right side portion 79 are also sutured in advance with the suture thread 97 in advance.

  Further, even at the rear upper portion 28 of the grained groove 26, the grained edge 57 of the rear side 55 of the first leather 50 and the grained edge 87 of the rear side 83 of the second leather 70 are sewn together. Sutured with a thread 97.

  Then, if a predetermined stitching portion is sewn so as to be fitted into the wood grain groove 26, an adhesive is applied to the front upper part 27, the rear upper part 28, and the branch parts 29 and 29 of the wood grain groove 26. The stitched portion between the end edge portions 87 and 87 is fitted into the branch portions 29 and 29, and the stitched portion between the predetermined grained end edge portions 57 and 86 is fitted into the front upper portion 27 and the rear upper portion 28, and then the skin winding step Migrate to

  In the leather winding step, the stitching edge 59 of the first leather 50 and the stitching edge 89 of the second leather 70 facing each other are stitched as shown in FIG. That is, as shown in FIG. 5A, first, the red first suture thread 91 connected to the sewing needle 95 penetrates the through hole 59a from the surface side of the suture end edge 59 of the black first leather 50. The black second suture thread 92 arranged on the surface side of the second leather 70 side through the back surface side of the stitching edge portion 59 and connected to the sewing needle 95 is connected to the stitching edge of the red second leather 70. The first suture 91 and the second suture 92 are arranged on the surface side of the first leather 50 through the through-hole 89a from the surface side of the portion 89, through the back surface side of the suture end edge portion 89, and It intersects, and the intersecting portion C is in a state of being disposed between the end faces 59b and 89b of the facing suture edge portions 59 and 89. At the intersection C, the second suture 92 is on the near side, and the first suture 91 is disposed on the back side of the second suture 92.

  From this state, the sewing needles 95 connected to the first suture 91 and the second suture 92 are rotated in the clockwise direction, in other words, the second suture 92 on the labor side and the second suture 92 on the back side. The sewing needle 95 of the first suture 91 on the back side is moved to the near side so that the overlapping state of the intersection with the one suture 91 is set to a state in which the overlapping state is not lost and the arrangement position of the sewing needle 95 is reversed. 5, the needle 95 of the second suture 92 that is the front side is arranged on the surface side of the second leather 70, and the state shown in FIG. To do.

  At this time, the first suture thread 91 and the second suture thread 92 are reversed at the intersecting portion C to form an inverted intersection portion 93 that is locked to each other.

  Next, as shown in FIGS. 5C and 5D, the sewing needle 95 of the first suture 91 is inserted into the through hole 59a next to the suture edge 59 from the front surface side to the back surface side of the first leather 50. It is made to penetrate and is further arranged on the surface side of the second leather 70. At the same time, the sewing needle 95 of the second suture thread 92 is passed through the through hole 89a next to the suture edge 89 from the front surface side to the back surface side of the second leather 70, and further the surface of the first leather 50 Place on the side. At this time, the state shown in FIG. 5D is obtained, and the state shown in FIG. 5D is completed after the suturing operation is completed by moving from the state shown in FIG. 5A to the next through holes 59a and 89a.

  Then, if the steps B and C in FIG. 5 described above are repeated, the leather-wrapped steering wheel 10 in which the leather 40 is wound around the outer surface of the coating layer 24 can be manufactured.

  When the vehicle is mounted, the steering wheel main body 20 can be manufactured by attaching a lower cover (not shown) after the skin winding process. Thereafter, when the vehicle is mounted, the steering shaft is fastened to the boss portion 13 and the airbag device 15 is attached to the steering wheel main body. If attached to 20, the steering wheel 10 can be assembled to the vehicle.

  As described above, in the leather-wrapped steering wheel 10 of the embodiment, the two first sutures 91 and the second sutures 92 are respectively connected to the suture ends on the opposite side from the penetrated suture edge portions 59 and 89 side. After forming the reversal crossing portion 93 that locks and inverts each other without penetrating to the edge portions 89 and 59 side, it returns to the penetrating suture edge portions 59 and 89 side, and the edge (suture end) The opposing suture end edges 59 and 89 are stitched together along the edges 59 and 89).

  That is, the two suture sutures 91 and the second suture 92 are opposed to each other in the exposed state along the edge on the side of the suture edge 59 or 89 penetrating each other. 59 and 89 are sewn together and are not in a state of crossing and penetrating the opposite end edge as in the prior art. Therefore, the first suture 91 and the second suture 92 on the same side are shown in FIGS. As shown in FIG. 4, the leather 40 is stitched in a state where the same stitching edge portions 59 and 89 are aligned. Therefore, the first suture 91 and the second suture 92 having different designs are respectively along the suture edge portions 59 and 89 of the leather 40 (the first leather 50 and the second leather 70), and Since the first suture 91 and the second suture 92 are arranged differently only on the same suture edge 59, 89 side, the different designs of the first suture 91 and the second suture 92 stand out at the edge of the leather 40, The design of the ring part 11 can be improved.

  Therefore, in the leather-wrapped steering wheel 10 of the embodiment, the design can be improved.

  Further, in the leather-wrapped steering wheel 10 of the embodiment, the first leather 50 and the second leather 70 are designed so that the one stitching edge 59 and the other stitching edge 89 have different designs. It is configured.

  Therefore, in the embodiment, the first suture thread 91 and the second suture thread 92 having different designs are respectively stitched edges of the first leather 50 and the second leather 70 having different designs. Since the portions 59 and 89 are arranged so as to be orderly arranged on the same stitching edge portions 59 and 89 side without shifting to the opposite side, the design of the sutures 90 (91 and 92) is different. The design of the ring part 11 is further improved by combining the different designs of the leather 40 (50, 70).

  If the above points are not taken into consideration, the first leather 50 and the second leather 70 may be the same color.

  In the case of the embodiment, the two sutures 90 (91, 92) and the two types of leathers 40 (50, 70) to be used are configured with different colors of black and red, respectively, and the black first leather The first suture 91 arranged on the 50 side is red, and the second suture 92 arranged on the red second leather 70 side is black, but the leather and the suture arranged on the leather side are You may comprise as the same color.

  Further, when two sutures 90 having different designs are used, the leather 40 is not divided in the circumferential direction of the cross section of the ring portion 11, and is formed as a single piece of leather. Thus, as in the embodiment, the first suture thread 91 and the second suture thread 92 having different designs may be used, and the opposite end edges may be provided to sew the opposing edges. .

  In addition, when using the first leather 50 and the second leather 70 with different designs as in the embodiment, the parts separated from the stitching edge portions 59 and 89 to be sewn together, in other words, The edge portions 57 and 86 also need to be coupled to each other and wound around the ring portion 11. At that time, in the embodiment, the edge portions 57 and 86 are separated from the inner peripheral side of the ring portion 11 and are easily visible on the upper portion 11a side of the ring portion 11 while using the suture 97 and the adhesive, It is embedded in (inserted into) the front upper portion 27 and the rear upper portion 28 of the wood groove 26. Therefore, in the embodiment, the end of the first leather 50 and the second leather 70 with different designs at the front upper part 27 and the rear upper part 28 of the graining groove 26 along the circumferential direction of the ring part 11 (wood graining) The edge portions 57 and 86) are neatly divided and arranged, so that the design of the ring portion 11 can be further improved.

  Of course, when the first leather 50 and the second leather 70 having different designs are used, the edge portions 57 and 86 apart from the stitching edge portions 59 and 89 are fitted in the wood groove 26. Instead, they may be stitched in the same manner as the stitching edge portions 59 and 58, or may be joined by conventional stitching or adhesion.

  In addition, in the case of the embodiment, the first suture 91 and the second suture 92 showed the case where the color was changed and the design was changed. However, in addition to the color, the designs differed in the number of filaments and the outer shape. , For example, uneven and smooth yarns, or yarns with different thicknesses may be used to change the design of both. Furthermore, designs with different materials, for example, one is a leather strap and the other is synthesized The first suture 91 and the second suture 92 may be configured with various different designs, such as a twisted fiber.

  Similarly, when the first leather 50 and the second leather 70 are different from each other in design, the color is changed and the appearance is changed, for example, the presence or absence of embossing or the like, or the texture of natural leather or synthetic leather is accompanied. You may comprise both by various different designs, such as the difference in the material which became.

  DESCRIPTION OF SYMBOLS 10 ... Leather-wrapped steering wheel, 11 ... Ring part, 40 ... Leather, 50 ... 1st leather, 59 ... (edge) Suture edge, 59b ... End surface, 70 ... 2nd leather, 89 ... (Edge) suture End edge, 89b ... end face, 90 ... suture, 91 ... first suture, 92 ... second suture, 93 ... reversal intersection, C ... intersection.

Claims (2)

A leather-wrapped steering wheel provided with the leather by sewing the opposite edges of the leather while winding the leather on the surface side of the ring portion gripped during steering,
Two sutures are used to sew the opposite edges of one end side and the other end side of the leather, and the design is different from each other.
One suture penetrated one edge and the other suture penetrated the other edge. The two sutures crossed and inverted and locked each other. In the state, the leather-wrapped steering wheel is characterized in that the opposite ends of the leather are stitched together as stitches that return to the penetrating edge sides and penetrate the respective edge sides.   The leather-wrapped steering wheel according to claim 1, wherein one end edge side and the other end edge side are made of leathers having different designs.