JP2004231125A - Vehicular seat - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vehicular seat for securing the strength and durability of joint portions of skin materials by preventing a reduction in structural strength of a bottom plate at a pull-over portion and allowing the planar surface shaping in appearance. <P>SOLUTION: The vehicular seat S comprises a cushion material 2 arranged on the bottom plate 1 and covered with the skin 3. The skin 3 is formed with a skin material 10 and a skin material 20 joined at their joint portions 3b, and the pull-over member 30 extending from the joint portions 3b to the side of the bottom plate 1 is pulled toward the bottom plate 1 and the pull-over member 30 is fixed at its end to the face of the bottom plate 1 at the side of the cushion material 2 with staples 32. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a vehicle seat, and more particularly to a vehicle seat having a structure for suspending a skin material covering a cushion material surface.
[0002]
[Prior art]
2. Description of the Related Art Conventionally, for example, a two-wheeled vehicle seat as a vehicle seat having a suspension structure has a structure in which a cushion material is disposed on a bottom plate and this is covered with a skin. Two-seater seats among motorcycle seats have a front seat and a rear seat, and the rear seat is generally formed continuously at a higher position than the front seat. Is done. Such a boundary between the front seat and the rear seat is separated in appearance by hanging the skin.
[0003]
As a structure for suspending the skin, a suspending member provided at a joint between the skin material covering the front seat and the skin material covering the rear seat includes a suspending device (suspending member) attached to the suspending member. (Patent Document 1).
[0004]
FIG. 6 shows a conceptual configuration of the suspension structure. In FIG. 6, a cushion material 102 is arranged on a bottom plate 101, and front and rear seat skins 103 joined at a joint 103 b cover the cushion material 102. A suspending member 130 is attached to the joining portion 103b, and a clip 132 for locking is provided at a distal end of a suspending loop 131 connected to the suspending member 130.
[0005]
A mounting hole 101a for locking the clip 132 is formed in the bottom plate 101. When the clip 132 is locked to the mounting hole 101a, the skin 103 is suspended. A predetermined hanging line is formed between the front seat and the rear seat by the joining portion 103b of the skin 103 being pulled in at a plurality of positions by such a hanging portion.
[0006]
[Patent Document 1]
JP 2001-213372 A (Pages 2-4, FIG. 2)
[0007]
[Problems to be solved by the invention]
However, in the above-described suspension structure, since the mounting hole 101a is formed in the bottom plate 101 and the mounting hole 101a is locked by the clip 132, the bottom plate 101 is opened by opening the mounting hole 101a. However, there is a problem that the strength of the steel is partially reduced. In addition, when rainwater or the like intrudes from the hanging portion, there is a possibility that the water may enter the lower portion through the mounting hole 101a.
[0008]
In order to avoid this problem, there is a technique of separately arranging a wire without opening a mounting hole in the bottom plate and locking a hanging member to the wire. However, since the number of parts increases, the manufacturing cost increases. Will increase.
[0009]
Further, in the above structure, the hanging loop 131 having a predetermined thickness is attached to the joint 103b, and the clip 132 is disposed below the bottom plate 101. Therefore, the width of the hanging part in the front-rear direction is required to be about 20 mm. However, there is a problem that it becomes a design constraint.
[0010]
Further, in order to attach the clip 132 to which the suspension loop 131 is connected to the bottom plate 101, the bottom plate 101 needs a predetermined flat portion. Further, since the portion of the outer skin 103 becomes thicker when the hanging member 130 or the like is attached to the joint portion 103b, a gap is easily opened in a joint portion between the front seat and the rear seat, and it is difficult to perform zero adjustment.
[0011]
Moreover, in the above-mentioned suspension structure, since the skin 103 is suspended at points at each suspension portion, it is necessary to provide a plurality of suspension portions at the joining portion 103b. There is a problem in that the surface of the skin 103 in the inset portion is not planar, and is restricted by design.
[0012]
In order to avoid this problem, it is possible to obtain a planar appearance by using a hard linear member such as a wire and mounting the hard linear member at the joint 103b in parallel with the suspension line formed on the external appearance. Conceivable. However, in this case, a new problem such as generation of a foreign-body sensation at the time of sitting and an increase in manufacturing cost occurs. Further, in the structure of hanging at points, the hanging tension is concentrated on a part of the skin 103, and there is a possibility that a problem occurs in securing strength and durability.
[0013]
In view of the above problems, it is an object of the present invention to prevent a reduction in the structural strength of a bottom plate in a suspension portion, to form a planar appearance on a skin surface, and to form a skin material joint. It is an object of the present invention to provide a vehicle seat capable of ensuring strength and durability.
[0014]
[Means for Solving the Problems]
According to a first aspect of the present invention, there is provided a vehicle seat in which a cushion material is disposed on a bottom plate and covered with a skin, wherein the skin covers the first seating surface. A second skin portion that covers the first skin portion and the second seat surface, wherein the skin extends from a boundary between the first skin portion and the second skin portion toward the bottom plate. This problem is solved by forming an extending portion that extends, and fixing an end of the extending portion to a surface of the bottom plate on the cushion material side.
[0015]
As described above, in the present invention, the extending portion extending from the joint portion between the first skin portion and the second skin portion is drawn into the bottom plate side, and the end portion is fixed to the cushion material side of the bottom plate. A mounting hole is not formed in the bottom plate as in the related art, and the strength of the bottom plate can be prevented from lowering at the corresponding portion.
[0016]
Further, as set forth in claim 2, the extension portion is a thin cloth suspension member joined to at least one of the first skin portion or the second skin portion along the boundary portion. It can be. By joining the suspending member in the width direction along the boundary portion, it is possible to apply a substantially uniform retraction tension to the boundary portion by retracting the suspending member.
[0017]
Thereby, the surface of the first skin portion and the second skin portion formed on the outer appearance of the skin can be formed in a planar shape, as compared with the conventional case where the first skin portion and the second skin portion are suspended at a plurality of points.
[0018]
In addition, since the entire boundary is suspended, no load is locally applied to the boundary, and the load is distributed to the entire boundary, so that strength and durability can be improved.
[0019]
In addition, as in claim 3, the extension portion is configured such that at least a part of the first skin portion or the second skin portion extends along the boundary portion toward the bottom plate. If it is formed out, it is preferable because the extension part made of another material does not need to be separately joined to the boundary part, so that the operation is simplified.
[0020]
As described in claim 4, a boundary between the first skin portion and the second skin portion includes a cushion material for the first seat surface and a cushion material for the second seat surface. It is preferable that the first skin portion and the second skin portion are hard to form a gap between the first skin portion and the second skin portion, so that intrusion of rainwater or the like can be prevented.
[0021]
Further, it is preferable that the extension portion is fixed to the bottom plate by staples. If the end of the extension portion is fixed by staples in this way, the mounting and fixing work becomes easy.
[0022]
Further, in the case of fixing with staples, it is not necessary to open a mounting hole in the bottom plate as in the related art, so that the strength of the bottom plate does not decrease and the number of fixing portions can be easily increased.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
An embodiment of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of a motorcycle seat according to the present invention, FIG. 2 is a partial cross-sectional view of a hanging portion of a front seat and a rear seat of the motorcycle seat of the embodiment, and FIG. 4 and 5 are partial cross-sectional views of suspension portions of a front seat and a rear seat of a motorcycle seat according to another embodiment. The members, arrangements, and the like described below do not limit the present invention, and can be variously modified within the scope of the present invention.
[0024]
As shown in FIG. 1, the vehicle seat S of this example is a two-seater seat of a two-wheeled vehicle having a front seat Sf and a rear seat Sr, and has a cushion material 2 disposed on a bottom plate 1. It is formed by covering with the skin 3 (see FIG. 2).
[0025]
The bottom plate 1 of the present embodiment is formed of one sheet of synthetic resin material, and integrally supports the front seat Sf and the rear seat Sr. The vehicle seat S is formed with a stepped portion 4 between the front seat Sf and the rear seat Sr such that the seat surface of the rear seat Sr is higher than the seat surface of the front seat Sf. .
[0026]
The cushion material 2 is formed of a slightly harder elastic material such as urethane according to the shapes of the bottom plate 1, the front seat Sf, and the rear seat Sr.
[0027]
The skin 3 includes a front seat material 10 constituting a first skin portion and a rear seat material 20 constituting a second skin portion. The skin materials 10 and 20 are arranged on the front seat Sf forming the first seat and the rear seat Sr forming the second seat, respectively. The skin 3 of the present embodiment is made of PVC, artificial leather, or the like in consideration of waterproofing, heat welding, and the like, and can be joined by, for example, sewing, high-frequency welding, ultrasonic welding, or the like.
[0028]
The skin 3 formed by joining the constituent parts covers the entire surface of the cushioning material 2 placed on the bottom plate 1, and the back surface of the bottom plate 1 is terminal-treated by a tucker. Thereby, the adhesion of the skin 3 on the surface of the vehicle seat S is ensured.
[0029]
The skin 3 of this example is formed by joining independent skin materials 10 and 20 to each other, but is not limited thereto. The skin material 10 (first skin portion) and the skin material 20 (second skin portion) are not limited to this. ) Can be constituted by one continuous skin material.
[0030]
The skin materials 10 and 20 are joined at a lower portion of the step portion 4, and a boundary line appearing in the appearance forms a suspension line 3 a. In the vehicle seat S of the present embodiment, substantially uniform tension is applied to substantially the entire width of the joint 3b of the skin materials 10, 20 as described later. Therefore, the suspension line 3a does not have a non-uniform shape such as a wavy shape unlike the conventional suspension structure based on a point, and the surface of the skin 3 in the suspension portion has a planar appearance. The joint 3b forms a boundary between the skin materials 10 and 20.
[0031]
2 and 3 show partial cross-sectional views of the hanging portions of the front seat Sf and the rear seat Sr. As shown in FIGS. 2 and 3, in the hanging portion of the front seat Sf and the rear seat Sr, the bottom plate 1 is inclined so as to be higher toward the rear.
[0032]
The skin material 10 and the skin material 20 are joined by sewing together with the suspending member 30 as an extension at the joint 3b. In addition, you may make it join by heat welding etc. instead of sewing. The hanging member 30 of the present example is a laterally elongated thin cloth member formed of tarpaulin.
[0033]
Further, in the present example, the hanging member 30 is joined to the skin materials 10 and 20, but is not limited thereto, and one of the skin material 10 and the skin material 20 is extended to the bottom plate 1 side. The hanging member 30 may be joined to the extended portion.
[0034]
The suspension member 30 of the present example is sewn in the lateral direction by the width of the seat surface at the joint 3b. If there is a hanging portion from the seat surface portion to a portion that further covers the side portion of the vehicle seat S, the hanging member 30 may be joined to the joining portion 3b of the hanging portion.
[0035]
Alternatively, a plurality of suspension members 30 having a predetermined width may be arranged in the lateral direction and joined to the joint 3b. In the configuration in which the suspension is carried out by the plurality of suspension members 30 as described above, a degree of freedom is generated in the direction in which the skin 3 is suspended. Therefore, for example, in the curved portion of the vehicle seat S, the vehicle skin S is suspended in a predetermined direction in accordance with the curve. be able to.
[0036]
The cushion material 2 is divided by the joint 3b for the front seat Sf and the rear seat Sr, and is in close contact with the bottom plate 1 and the skin material 10 or 20, respectively.
[0037]
A concave portion 1a is formed on the rear inclined surface of the bottom plate 1 at a height substantially equal to that of the seat surface of the front seat Sf. The recess 1a is formed to have a predetermined width in the slope direction. The suspension members 30 joined to the skin 3 at the joints 3b are drawn rearward on the extension line of the seating surface portion formed by the skin material 10, and are fixed to the concave portions 1a by staples 32 from the cushion material 2 side at a plurality of locations.
[0038]
The fixing by the staples 32 is performed at two places in the front-rear direction and at a plurality of places at predetermined intervals in the horizontal direction, as shown in FIG. In addition, the direction in which the suspension member 30 is pulled in may not be backward on the extension of the seating surface portion formed by the skin material 10 as in the present embodiment, but may be a direction perpendicular to the seating surface portion, a vertical oblique direction. Good.
[0039]
In this example, the recess 1a is formed in the bottom plate 1 and the hanging member 30 is fixed to the recess 1a. However, the hanging member 30 is directly fixed to the bottom plate 1 without providing the recess 1a. Is also good. In order to apply substantially uniform tension in the front-rear direction over the width direction of the hanging member 30, it is desirable that the portion of the bottom plate 1 where the hanging member 30 is fixed has no unevenness in the width direction.
[0040]
The assembling of the vehicle seat S of this example will be described. First, a cushion member 2 for a front seat Sf formed in a predetermined shape is arranged at a predetermined position on the bottom plate 1. Next, the suspension member 30 joined to the skin 3 is fixed to the recess 1 a of the bottom plate 1 with a plurality of staples 32. At this time, the front seat Sf cushion material 2 may be covered with the skin 3.
[0041]
Then, a cushion member 2 for a rear seat Sr formed in a predetermined shape is disposed at a predetermined position on the bottom plate 1. At this time, the joint 3b is sandwiched between the two cushion members 2. Finally, both cushion members 2 are covered with the skin 3, and the ends of the skin 3 are tacked to the bottom plate 1.
[0042]
As described above, in the vehicle seat S of this example, the hanging member 30 having a predetermined width in the lateral direction is joined to the joining portion 3b, and the hanging member 30 is drawn into the bottom plate 1 side, and the bottom plate 1 is directly fixed by the staples 32, so that the tension in the front-rear direction is substantially uniformly applied to the entire lateral direction of the joint 3b, and as a result, a planar appearance is formed on the surface of the skin 3.
[0043]
Further, in the conventional structure of hanging at a point, it is necessary to secure a hanging allowance of a predetermined thickness in the cushion material. However, as in the present example, the hanging member 30 having a width in the horizontal direction is used. Thereby, it is possible to hang with a smaller hanging margin.
[0044]
Further, since there is no need to open a mounting hole for locking the hanging member 30 in the bottom plate 1, the strength of the bottom plate 1 is not reduced at the hanging portion, which is preferable.
[0045]
Further, since the hanging member 30 is fixed by the staples 32, the work of fixing the hanging member 30 is facilitated, and the staple 32 fixing surface of the bottom plate 1 does not require much width in the front-rear direction and has an inclined surface. This may increase the degree of freedom in design. Further, since the staples 32 are fixed from the cushion material 2 side, the staples 32 do not appear on the lower surface of the bottom plate 1 and there is no need to hide the fixing members (clips, staples, etc.) unlike the conventional case, which is preferable. .
[0046]
Furthermore, even if the number of staples 32 is increased, the strength of the bottom plate 1 at the driving portion hardly decreases. By increasing the number of staples, the strength of each staple 32 at a fixed position can be dispersed and the staples 32 can be easily dispersed. In addition, the mounting strength and durability can be improved.
[0047]
In the vehicle seat S of this example, the staples 32 are tensioned in the front-rear direction. However, when a passenger sits on the front seat Sf, the staples 32 are further tensioned accordingly. However, as the number of staples 32 is increased, the tension is distributed to the staples 32, so that the mounting strength and durability can be secured.
[0048]
Further, in this example, the direction in which the joint portion 3b is drawn is set to be an extension of the front seat Sf seat surface portion, and the cushion material 2 for the front seat Sf and the cushion material 2 for the rear seat Sr are sandwiched from above and below the joint portion 3b. Are arranged, so that no gap is opened in the joint portion between the skin material 10 and the skin material 20, and the infiltration of rainwater or the like is reduced.
[0049]
In the above-described embodiment, a thin cloth tarpaulin is used as a material for forming the hanging member 30. However, similarly to the case of the tarpaulin, a cloth that is slightly hard and does not have much elasticity is used, so that the appearance is flat. A simple design can be easily obtained, and the strength and durability of the hanging portion can be improved. Further, the present invention is not limited to this, and an inexpensive cloth material such as PVC leather or cloth may be used depending on strength requirements.
[0050]
In the above-described embodiment, the joining portion 3b is suspended by pulling the suspension member 30 toward the bottom plate 1. However, the present invention is not limited to this, and as shown in FIG. The skin materials 10 and 20 may be further extended from the joint 3b to form an extension 3c, and the extension 3c may be fixed to the bottom plate 1 with staples 32.
[0051]
By doing so, there is no need to join the hanging member 30 to the joining portion 3b, and the working process can be simplified.
[0052]
Further, as shown in FIG. 5, one of the skin material 10 and the skin material 20 is extended from the joint 3b to form an extension 3c, and the extension 3c is attached to the bottom plate 1 by a staple 32. You may comprise so that it may be fixed. In FIG. 5, the extension part 3c is configured by further extending the skin material 10 of the front seat Sf. In consideration of water intrusion, it is desirable to extend the skin material 10 as shown in FIG.
[0053]
In the above embodiment, the vehicle seat S for a two-wheeled vehicle has been described as an example. However, the present invention is not limited to this, and the present invention is generally applied to a vehicle seat including a bottom plate, a cushion material, and a skin. Can be done.
[0054]
In the above embodiment, the first skin portion and the second skin portion are the front-seat skin material 10 and the rear-seat skin material 20, respectively, and the hanging portion is a combination of the front seat Sf and the rear seat Sr. Although the description has been made by taking the portion as an example, the present invention is not limited to this. For example, a joining portion of a skin material covering the seat surface portion and a skin material covering the side portion may be suspended.
[0055]
In this way, it is possible to maintain the strength of the bottom plate in a portion to be suspended in the seat, obtain a planar shape, facilitate the work, and the like, similarly to the suspension portion between the front and rear seats.
[0056]
Further, in the above embodiment, the first and second skin portions form the seat surface portion of the front seat Sf and the seat surface portion of the rear seat Sr, respectively, and the step portion 4 is formed between the respective seat surface portions. However, the invention is not limited to this, and the sheet surface formed by the first skin portion and the second skin portion may be flat.
[0057]
In this case, a configuration can be adopted in which the sheet is suspended by the suspension member 30 (or the extension portion 3c) extending in the direction of the bottom plate 1 from the back side of the sheet surface to be formed.
[0058]
【The invention's effect】
As described above, according to the vehicle seat of the present invention, the suspension member joined to the joint portion between the first skin portion and the second skin portion in a predetermined width direction or extended from the joint portion. The joint part is drawn into the bottom plate side by the skin material, and the hanging member or the extended skin material is directly fixed to the bottom plate.Therefore, it is possible to prevent a reduction in the structural strength of the bottom plate in the suspension part. It is possible to provide a vehicle seat capable of forming the surface of the skin surface in a planar appearance and securing the strength and durability of the skin material joint.
[Brief description of the drawings]
FIG. 1 is a perspective view of a motorcycle seat according to the present invention.
FIG. 2 is a partial cross-sectional view of suspension portions of a front seat and a rear seat of the motorcycle seat according to the embodiment.
FIG. 3 is an explanatory cross-sectional view of a hanging portion of the embodiment.
FIG. 4 is a partial cross-sectional view of suspension portions of a front seat and a rear seat of a motorcycle seat according to another embodiment.
FIG. 5 is a partial cross-sectional view of suspension portions of a front seat and a rear seat of a motorcycle seat according to another embodiment.
FIG. 6 is a partial cross-sectional view of a hanging portion of a front seat and a rear seat of a conventional motorcycle seat.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Bottom plate, 1a recessed part, 2 cushion material, 3 skins, 3a suspension line, 3b joining part, 3c extension part, 4 steps, 10,20 skin material, 30 suspension member, 32 staples, 101 bottom plate, 101a mounting hole, 102 cushion material, 103 skin, 103b joint, 130 suspension member, 131 suspension loop, 132 clip, S vehicle seat, Sf front seat, Sr rear seat

Claims (5)

In a vehicle seat formed by arranging a cushion material on a bottom plate and covering with a skin,
The skin includes a first skin portion covering a first seating surface and a second skin portion covering a second seating surface.
An extension is formed on the skin, extending from a boundary between the first skin and the second skin toward the bottom plate.
A vehicle seat, wherein an end of the extending portion is fixed to a surface of the bottom plate on the cushion material side. The said extension part is a thin cloth-shaped suspension member joined to at least one of the 1st skin part or the 2nd skin part along the said boundary part, The said 1st skin is characterized by the above-mentioned. The vehicle seat as described in the above. The extension portion is formed by extending at least a part of the first skin portion or the second skin portion along the boundary portion toward the bottom plate. The vehicle seat according to claim 1. A boundary portion between the first skin portion and the second skin portion is sandwiched between the cushion material for the first seating surface and the cushion material for the second seating surface. Item 4. The vehicle seat according to Item 1. The vehicle seat according to any one of claims 1 to 3, wherein the extension portion is fixed to the bottom plate by staples.

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