JP4717982B2 - Vehicle seat and method for manufacturing vehicle seat - Google Patents

Description

[0001]
[Industrial application fields]
The present invention relates to a vehicle seat device and a vehicle seat manufacturing method, and more particularly to a vehicle seat and a vehicle seat manufacturing method in which the number of components is reduced by omitting a cushion material.
[0002]
[Prior art]
As shown in FIG. 8, a vehicle seat disposed in a motorcycle or the like includes a bottom plate 101, a cushion material 102, and a skin material 103. For example, as the bottom plate 101, a pressed or welded iron plate or a resin molded product is used, and as the cushion 102, a foamed product of flexible urethane foam is used. Furthermore, as the skin material 103, PVC leather or the like that has been sewn or welded is used.
[0003]
Conventionally, the members constituting the vehicle seat are manufactured in separate molds and facilities. And the vehicle seat was completed by assembling these structural members.
[0004]
[Problems to be solved by the invention]
Thus, conventionally, in order to create a vehicle seat, a mold and equipment for each component are required, and various processes are required for each component. In addition, an assembling work is required to assemble each component part into one, and the work is performed manually and requires skill.
[0005]
As described above, conventionally, in manufacturing a vehicle seat, various facilities are required, and there is a problem that it takes time to manufacture the vehicle seat. Further, since skill is required for assembling the vehicle seat, a configuration and a manufacturing method that can obtain a product of stable quality at a simple and low cost are desired.
[0006]
An object of the present invention is to provide a vehicle seat and a method for manufacturing a vehicle seat that can be manufactured with high productivity by reducing the number of parts and man-hours.
[0007]
[Means for Solving the Problems]
According to the vehicle seat of the first aspect, the object includes a surface layer that constitutes a buffer member, and a support portion that supports the surface layer formed on the back surface side of the surface layer, and the surface The layer is formed of an elastomeric resin , and includes a skin portion having a seat surface portion and a side portion, and a rib protruding from the back side of the seat surface portion of the skin portion, the support portion is formed of a hard resin , and the surface layer A frame body disposed at a position aligned with the side portion and embedded in the side portion; and a rib support portion extending along the protruding direction of the rib and embedded in the rib. The surface layer and the support portion are integrally formed to solve the problem.
[0008]
The support portion is configured to be positioned at a predetermined distance from the seat surface portion of the vehicle seat. As a result, only the skin layer made of the elastomeric resin is positioned between the seat surface portion of the vehicle seat and the support portion, and a buffering action can be obtained by the elasticity of the elastomeric resin.
[0009]
Also, as the hard resin, using, for example, polypropylene resin.
[0010]
As described above, the vehicle seat according to the present invention includes the surface layer formed of the elastomer-based resin and the support portion that supports the surface layer, and the skin portion and the rib of the surface layer are separated from the vehicle body. It is configured to absorb vibration and play a role as a buffer member. Therefore, it is not necessary to use a cushion material as in the prior art, and the number of parts can be reduced.
[0011]
The support portion is provided with an attachment portion to the vehicle body, and the vehicle seat can be placed on the vehicle body via the attachment portion.
[0012]
Moreover, the said subject is the manufacturing method of the vehicle seat as described in any one of Claim 1 thru | or 4 according to the manufacturing method of the vehicle seat which concerns on Claim 5 , Comprising: From an injection apparatus to a metal mold | die a first step of forming said surface layer constituting the cushioning member by injection the elastomeric resin, is injected the hard resin from the injection apparatus to the mold, extending to the back surface side of the surface layer said support portion, a second step of one KaradaNaru shape and embedded in the surface layer, and a third step of replenishing said surface layer by injecting the elastomeric resin from the injection apparatus to the mold again, It is solved by comprising.
[0013]
As described above, since the vehicle seat of the present invention can be manufactured through a series of steps in one mold, a dedicated mold and equipment for each component are required as in the prior art. Thus, the vehicle seat can be manufactured efficiently and at low cost.
[0014]
Furthermore, since it is not necessary to assemble the skin material, the cushion material, and the bottom plate as conventionally performed, it is possible to efficiently manufacture a high-quality vehicle seat without requiring skill.
[0015]
DETAILED DESCRIPTION OF THE INVENTION
The vehicle seat S of this example is used as a vehicle seat S of a motorcycle, for example. The vehicle seat S includes a surface layer 10 that constitutes a buffer member, and a support portion 20 that is integrally formed on the back surface side of the surface layer 10.
[0016]
The surface layer 10 is formed from an elastomeric resin. Further, the support portion 20 is made of a hard resin and is integrally formed with the surface layer 10 by being embedded in the surface layer 10. At this time, the support portion 20 is positioned at a predetermined distance X from the seat surface portion 11a of the vehicle seat S.
[0017]
The surface layer 10 includes a skin portion 11 having a seat surface portion 11a and side portions 11b, and a rib 12 protruding from the back side of the seat surface portion 11a. The skin portion 11 and the rib 12 constitute a buffer member. To do.
[0018]
The support portion 20 includes a frame body 21 formed at a position aligned with the side portion 11 b of the skin portion 11, and a rib support portion 22 formed at a position aligned with the rib 12.
[0019]
The support part 20 is embedded in the surface layer 10 and integrally molded . At this time, the frame body 21 of the support portion 20 is integrally formed with the side portion 11 b of the skin portion 11, and the rib support portion 22 of the support portion 20 is integrally formed with the rib 12 of the skin portion 11.
[0020]
As described above, the support portion 20 is positioned at a predetermined distance X from the seat surface portion 11a of the vehicle seat S. In this example, the upper end portion of the frame body 21 or the rib support portion 22 is provided. A predetermined distance X is provided between the upper end portion of the outer skin and the seat surface portion 11 a of the skin portion 11.
[0021]
Thereby, only the skin layer which consists of elastomeric resin exists between the seat surface part 11a and a support part, and a buffering effect can be acquired by the elasticity of elastomeric resin.
[0022]
The support portion 20 is provided with an attachment portion 23 to the vehicle body, and the attachment portion 23 is configured to attach the vehicle seat S to the vehicle body. In this example, as the attachment portion 23, a screw hole 23a and an engagement portion 23b with the seat frame are provided.
[0023]
As described above, the vehicle seat S of the present invention is configured such that the surface layer 10 constitutes a cushioning member and plays the role of a cushion material, and the cushion material used in the conventional vehicle seat is necessary. The number of parts can be reduced.
[0024]
The vehicle seat S of this example is created by the first step S1 for forming the surface layer 10, the second step S2 for forming the support portion, and the third step S3 for replenishing the surface layer 10. The
[0025]
According to the above manufacturing method, since the vehicle seat S can be manufactured in a single mold, there is no need for a dedicated mold and equipment for each component as in the conventional case, and the vehicle seat S is low in cost. It becomes possible to manufacture a sheet.
[0026]
Moreover, since each component can be manufactured through a series of processes in one mold, instead of manufacturing each component as in the past, it is possible to manufacture a vehicle seat with high manufacturing efficiency. It becomes possible.
[0027]
Furthermore, since it is not necessary to assemble the skin material, the cushion material, and the bottom plate as conventionally performed, it is possible to efficiently manufacture a high-quality vehicle seat without requiring skill.
[0028]
【Example】
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The members, arrangements, and the like described below are not intended to limit the present invention and can be variously modified within the scope of the gist of the present invention.
[0029]
1 to 7 show an embodiment of the present invention. FIG. 1 is an explanatory view showing the configuration of the vehicle seat of the present invention, FIG. 2 is an exploded explanatory view of FIG. 1, and FIG. 3 is a vehicle seat. FIG. 4 is a cross-sectional view taken along the line AA of FIG. 3, and FIGS. 5 to 7 are explanatory views showing manufacturing steps of the vehicle seat. The members, arrangements, and the like described below are not intended to limit the present invention and can be variously modified within the scope of the gist of the present invention.
[0030]
In this example, a description will be given based on an example in which the vehicle seat is applied to a vehicle seat S used in a motorcycle. The present invention is not limited to the vehicle seat, and may be applied to the creation of a four-wheel vehicle seat, an office chair, a bench, and the like.
[0031]
As shown in FIG. 1, the vehicle seat S of this example is a vehicle seat S used for a motorcycle, for example, and is integrally formed on a surface layer 10 constituting a buffer member and a back surface side of the surface layer 10. The support part 20 is provided.
[0032]
The surface layer 10 is formed from an elastomeric resin. The surface layer 10 includes a skin portion 11 having a seat surface portion 11a and side portions 11b, and a rib 12 protruding from the back side of the seat surface portion 11a. The skin portion 11 and the rib 12 constitute a buffer member. To do. A plurality of ribs 12 are provided in the longitudinal direction of the vehicle body and in the lateral direction of the vehicle body. In addition, although the rib 12 is provided in the back side of the surface layer 10, in order to clarify the structure of the vehicle seat S in FIG. 1, the rib 12 is shown as the continuous line.
[0033]
The support portion 20 is made of a hard resin and includes a frame body 21 formed at a position aligned with the side portion 11 b of the skin portion 11 and a rib support portion 22 formed at a position aligned with the rib 12.
[0034]
The support portion 20 is embedded in the surface layer 10 and integrally formed . That is, in this example, the frame body 21 of the support portion 20 is integrally formed with the side portion 11 b of the skin portion 11, and the rib support portion 22 of the support portion 20 is integrally formed with the rib 12 of the skin portion 11.
[0035]
At this time, as shown in FIG. 4, between the upper end portion of the frame 21 of the support portion 20 and the seat surface portion of the skin portion 11, and the upper end portion of the rib support portion 22 of the support portion 20 and the seat of the skin portion 11. A predetermined distance X is provided between the surface portion.
[0036]
Thus, by providing the predetermined distance X between the support portion 20 and the seating surface portion of the skin layer 10, only the skin layer 10 made of an elastomeric resin exists in the portion of the predetermined distance X. A buffer action can be obtained by the elasticity of the elastomeric resin.
[0037]
As described above, according to the vehicle seat S of the present example, the skin layer 10 constitutes a buffer member and does not require a cushion material. The shape and the number of the ribs 12 of the skin layer 10 are not limited to the above, and any configuration may be used as long as it can support the occupant's body in a balanced manner.
[0038]
The rib support portion 22 is provided with an attachment portion 23 for the vehicle body. As the attachment portion 23, in this example, a screw hole 23a and an engagement portion 23b with the seat frame are provided.
[0039]
The vehicle seat S can be screwed to the frame of the vehicle body by the screw holes 23a. Further, the engagement portion 23b with the seat frame is configured to be fitted to the frame of the vehicle body, and prevents movement of the vehicle seat in the left-right direction of the vehicle body.
[0040]
Next, a method for manufacturing the vehicle seat S of this example will be described. The steps for manufacturing the vehicle seat S include a first step S1 for creating the skin layer 10 and a second step of integrally forming the support portion 20 on the skin layer 10 created in the first step S1. Step S2 and a third step S3 for replenishing the skin layer 10.
[0041]
As shown in FIG. 5, in the first step S1, the skin layer 10 is formed. That is, in the first step S <b> 1, an elastomer resin that is the material of the skin layer 10 is filled into the cavity K of the mold 30 from the injection molding machine. The elastomer-based resin is not filled in the cavities K but is filled at a predetermined rate.
[0042]
In the second step S2, the support portion 20 is integrally formed on the skin layer 10 formed in the first step. That is, in the second step S2, the cavity K of the mold 30 that has already been filled with the elastomeric resin in the first step S1 is filled with the polypropylene resin that is the material of the support portion 20.
[0043]
As shown in FIG. 6, in the second step S2, a polypropylene resin harder than the elastomeric resin injected in the first step S1 is injected, so that the polypropylene resin is integrated while being embedded in the elastomeric resin. To be molded.
[0044]
In the third step S3, as shown in FIG. 7, in order to replenish the skin layer 10, an elastomeric resin is injected again. The elastomer resin is filled in the cavity K of the mold 30 without any gap. And after 3rd process S3 is complete | finished, the vehicle seat S as a finished product is obtained by cooling and taking out a molded product.
[0045]
Thus, according to the manufacturing method of the present example, the skin layer 10 and the support portion 20 are integrally formed by injection molding in one mold 30 so that the vehicle seat S is manufactured. Therefore, it is possible to manufacture the vehicle seat S with equipment that is simplified as compared with the conventional case.
[0046]
In addition, the skin layer 10 and the support portion 20 are integrally formed by injection molding, so that assembly of members and terminal processing are not required, so that a manual process is eliminated, and an improvement in manufacturing efficiency by automation is realized.
[0047]
【The invention's effect】
As described above, the vehicle seat according to the present invention includes the surface layer formed of the elastomer resin and the support portion that supports the surface layer, and the skin layer and the rib of the surface layer are separated from the vehicle body. This is configured to absorb the vibrations and the like and serve as a buffer member. Therefore, it is not necessary to use a cushion material as in the prior art, and the number of parts can be reduced.
[0048]
In addition, since the vehicle seat of the present invention can be manufactured through a series of steps in one mold, there is no need for a dedicated mold and equipment for each component as in the prior art. The vehicle seat can be manufactured efficiently and at low cost.
[0049]
Furthermore, since it is not necessary to assemble the skin material, the cushion material, and the bottom plate as conventionally performed, it is possible to always manufacture a vehicle seat with stable quality without requiring skill.
[Brief description of the drawings]
FIG. 1 is an explanatory diagram showing a configuration of a vehicle seat according to the present invention.
FIG. 2 is an exploded explanatory view of FIG. 1;
FIG. 3 is a perspective view of a vehicle seat.
4 is a cross-sectional view taken along line AA in FIG.
FIG. 5 is an explanatory view showing a manufacturing process of a vehicle seat.
FIG. 6 is an explanatory view showing a manufacturing process of a vehicle seat.
FIG. 7 is an explanatory view showing a manufacturing process of a vehicle seat.
FIG. 8 is an explanatory diagram showing a conventional example.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Surface layer 11 Skin part 11a Seat surface part 11b Side part 12 Rib 20 Support part 21 Frame 22 Rib support part 23 Attachment part 23a Screw hole 23b Engagement part 30 Mold K Cavity S Vehicle seat X Distance

Claims (5)

A surface layer constituting the buffer member, and a support portion for supporting the surface layer formed on the back surface side of the surface layer,
The surface layer is formed of an elastomeric resin , and includes a skin portion having a seat surface portion and a side portion, and a rib protruding from the seat surface portion back side of the skin portion,
The support portion is formed of a hard resin, and is disposed at a position aligned with the side portion of the surface layer, and extends along a protruding direction of the rib, and a frame body embedded in the side portion. And a rib support portion embedded in the rib,
The vehicle seat, wherein the surface layer and the support portion are integrally formed .   The vehicle seat according to claim 1, wherein the support portion is located at a predetermined distance from a seat surface portion of the vehicle seat. Claim 1 or 2 for a vehicle seat according to the supporting part, characterized in that the attachment to the vehicle body is provided. The vehicle seat according to any one of claims 1 to 3, wherein the hard resin is a polypropylene resin. A method for manufacturing a vehicle seat according to any one of claims 1 to 4 ,
A first step of forming said surface layer into the mold from an injection device with an injection the elastomer resin constituting the buffer member,
By injection the hard resin from the injection apparatus to the mold, said support portion extending to the back surface side of said surface layer, a second step of one KaradaNaru shape and embedded in the surface layer,
And a third step of replenishing the surface layer by reinjecting the elastomer resin from the injection device into the mold.

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