JP2018114827A - Seat for vehicle - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable simple and strong joining of two members by a method other than welding, even when joint surfaces of the two members to be joined together have a relationship where the joint surfaces are not parallel to each other.SOLUTION: There is provided a seat in which an outer peripheral surface 12A of a reinforcement pipe 12 and inside and outside surfaces 11X, 11Y of a side frame 11, to be joined to each other, have a relationship where the outer peripheral surface and the inside and outside surfaces are not parallel to each other. The reinforcement pipe 12 is provided being inserted through an insertion hole 11A made in the side frame 11. There is provided a resin member 13 that is formed to be cured integrally with surfaces, while spanning the surfaces comprising: an inner peripheral surface 11Aa of the insertion hole 11A; the outer peripheral surface 12A of the reinforcement pipe 12, the outer peripheral surface facing the inner peripheral surface 11Aa; and the inside and outside surfaces 11X, 11Y of the side frame 11, which form joint surfaces that are not parallel to the outer peripheral surface 12A. Via the resin member 13, the reinforcement pipe 12 and the side frame 11 are joined integrally with each other.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vehicle seat. More specifically, the present invention relates to a vehicle seat in which the joining surfaces of two members joined together are not parallel to each other.

  Conventionally, as a vehicle seat, a configuration in which a metal recliner serving as a seat reclining adjustment mechanism is bonded to a resin seat frame with an adhesive is known (Patent Document 1). Specifically, the recliner is in a state in which an adhesive is applied and bonded between the mating surfaces that are in contact with the seat frame.

JP 2013-189065 A

  In the above prior art, when the joint surfaces are not parallel to each other, a wide mating surface cannot be secured between the two, and the two cannot be strongly joined. The present invention was devised as a solution to the above problem, and the problem to be solved by the present invention is that even if the joint surfaces of the two members to be joined to each other are not parallel to each other, It is to be able to join both easily and firmly by a method other than welding.

  In order to solve the above problems, the vehicle seat of the present invention takes the following means.

  The first invention is a vehicle seat in which the joining surfaces of the two members joined together are not parallel to each other. One of the two members is configured to be provided in a state of being inserted into an insertion hole formed in the other. Each straddling across the inner peripheral surface of the insertion hole, one opposing surface facing this inner peripheral surface, and the other front or back surface constituting the joint surface that is not parallel to this opposing surface A resin member molded in a state of being integrally cured with respect to the surface is provided, and the two members are integrally joined to each other via the resin member.

  According to the first aspect of the present invention, even if the joining surfaces of the two members to be joined are not parallel to each other, the resin member is poured between the two and cured in an integrated manner, so that the two can be simplified from each other. And it can join firmly.

  The second invention is the following configuration in the first invention described above. The resin member is molded in a state of being integrally cured with respect to each surface across the other front and back surfaces.

  According to the second aspect, the joining of the two members via the resin member can be further strengthened.

  The third invention is the following configuration in the first or second invention described above. The other is configured as a plate material, and the other is configured as a pipe material that is inserted in a state of being penetrated into an insertion hole formed in the other.

  According to the third aspect of the present invention, it is possible to easily and firmly join the pipe material and the plate material in which the joint surfaces are not parallel to each other and have different shapes, without using welding.

1 is a perspective view illustrating a schematic configuration of a vehicle seat of Example 1. FIG. It is the front view which expanded and represented the II section of FIG. It is the same side view. FIG. 4 is a sectional view taken along line IV-IV in FIG. 3. It is the VV sectional view taken on the line of FIG. It is the schematic diagram showing the injection molding process of resin which unifies a side frame and a pipe material. It is the schematic diagram showing the hot press process of resin which integrates the side frame of the vehicle seat of Example 2, and a pipe material. It is the schematic diagram showing the resin molding process by 3D printer which integrates the side frame of the vehicle seat of Example 3, and a pipe material. FIG. 5 is a cross-sectional view corresponding to FIG. 4 illustrating a schematic configuration of a vehicle seat of Example 4.

  EMBODIMENT OF THE INVENTION Below, the form for implementing this invention is demonstrated using drawing.

<< About schematic structure of sheet 1 >>
First, the configuration of the seat 1 (vehicle seat) according to the first embodiment will be described with reference to FIGS. In the following description, when directions such as front / rear, up / down, left / right, and the like are indicated, the directions shown in the drawings are indicated. As shown in FIG. 1, the seat 1 according to the present embodiment is configured as an automobile seat, and includes a seat back 2 that serves as a backrest portion of a seated person, a seat cushion 3 that serves as a seating portion, and a headrest portion. It is set as the structure provided with the headrest 4 which becomes. In the seat back 2 described above, the metal back frame 10 constituting the inner skeleton thereof is bridged in the seat width direction between the side frame 11 made of a pair of left and right vertically-oriented iron plates and the side frames 11. And a reinforcing pipe 12 made of a round pipe material integrally connected to each other. Here, the reinforcing pipe 12 corresponds to “one of the two members” of the present invention, and the side frame 11 corresponds to “the other of the two members” of the present invention.

  Each of the side frames 11 described above is provided in a state of being opposed to each other so as to face each other in the seat width direction. With the above configuration, each side frame 11 is in a state in which the inner side surface 11X and the outer side surface 11Y (see FIG. 4) facing the sheet width direction are directed straight in the sheet width direction. As shown in FIG. 1, each of the side frames 11 described above has a configuration in which the front and rear side edges are bent inward in the seat width direction so that the edges are not easily raised from the outside. Has been. The side frames 11 described above are connected such that their lower end portions can adjust the backrest angle with respect to the rear end portions on the left and right sides of the seat cushion 3 via a reclining adjuster (not shown).

  The reinforcing pipe 12 is made of a round pipe material having a shape extending straight in the sheet width direction. The above-mentioned reinforcing pipe 12 is inserted into the above-mentioned side frames 11 on the respective sides in the sheet width direction from the inner side to the outer side in the sheet width direction. The resin member 13 is injection-molded in the portion, thereby being firmly and integrally coupled to each other via the resin member 13. Specifically, the end portions on each side of the above-described reinforcing pipe 12 are formed so as to penetrate the side frames 11 on each side in the plate thickness direction (sheet width direction) as shown in FIGS. The insertion holes 11 </ b> A are inserted into the substantially circular insertion holes 11 </ b> A so as to penetrate from the inner side to the outer side in the sheet width direction.

  Each insertion hole 11 </ b> A has a substantially circular shape in which the hole diameter is slightly larger than the outer diameter of the reinforcing pipe 12 inserted into the insertion hole 11 </ b> A. With the above configuration, as shown in FIG. 4, the end of each side of the reinforcing pipe 12 is inserted into each insertion hole 11 </ b> A, whereby the inner peripheral surface 11 </ b> Aa of each insertion hole 11 </ b> A and the inside of each insertion hole 11 </ b> A A slight gap T is formed in the radial direction between the inner peripheral surface 11Aa and the outer peripheral surface 12A of the reinforcing pipe 12 facing the inner peripheral surface 11Aa.

  More specifically, as shown in FIGS. 2 to 3 and 5, the four locations in the circumferential direction in each insertion hole 11 </ b> A described above have a radius from the inner peripheral surface 11 </ b> Aa of each insertion hole 11 </ b> A. A protrusion 11B that protrudes in a claw shape toward the inner side in the direction is formed. These projections 11B are formed on the inner peripheral surface 11Aa of each insertion hole 11A by punching each insertion hole 11A into a shape in which these projections 11B remain when the insertion holes 11A are punched into the side frames 11 by pressing. It is formed in a shape that protrudes inward in the radial direction in a form that rises continuously from the center.

  As shown in FIG. 3, these protrusions 11 </ b> B are equally arranged in the same shape and size at four locations in the circumferential direction in each insertion hole 11 </ b> A. Each of the protrusions 11B has a shape that, after being punched and formed, is bent so that the protruding shape slightly curves outward in the sheet width direction toward the front end side. Thereby, when each protrusion 11B inserts the edge part of each side of the reinforcement pipe 12 mentioned above into each insertion hole 11A from the inner side of a sheet | seat width direction, the edge part of each side of the reinforcement pipe 12 is between them. A curved guide shape that is easy to accept is formed in the space surrounded by the.

  Each protrusion 11B described above has a shape in which the substantial hole diameter of each insertion hole 11A formed by the protruding tip surface is slightly smaller than the outer diameter of the reinforcing pipe 12 inserted into each insertion hole 11A. It is made into the shape which protruded. With the above configuration, as shown in FIG. 5, the end of each side of the reinforcing pipe 12 is inserted into each insertion hole 11 </ b> A, whereby each of the above-described protrusions 11 </ b> B is seated by the end of each side of the reinforcing pipe 12. It is pushed and bent outward in the width direction, and can ride on the outer peripheral surface 12 </ b> A of the reinforcing pipe 12. As a result, the end portions on the respective sides of the reinforcing pipes 12 inserted into the respective insertion holes 11A are pushed and bent, and are projected in the radial direction by the respective protrusions 11B that run on the outer peripheral surface 12A of the reinforcing pipe 12. It is elastically pressed from the outside and is held in a centered state at the center position in each insertion hole 11A.

  And after inserting the edge part of one side of the reinforcement pipe 12 in the insertion hole 11A of the side frame 11 as mentioned above, as shown in FIG. 6, this reinforcement pipe 12 and the side frame 11 of the inserted state are connected. Set in mold M. Then, the thermoplastic resin R is poured into the molding die M toward the portion where the reinforcing pipe 12 is inserted and cured, so that the resin member 13 molded thereby becomes the reinforcing pipe 12 and the side frame 11. It is in a state where the surfaces are integrally bonded across and joined so as to integrally connect them.

<< Configuration of Resin Member 13 >>
Specifically, as shown in FIG. 4, the resin member 13 described above is formed between the inner peripheral surface 11Aa of the insertion hole 11A of the side frame 11 and the outer peripheral surface 12A of the reinforcing pipe 12 facing the inner peripheral surface 11Aa. A filling area 13A filled in the gap T between them, and an overhang area 13B which is continuously connected to the filling area 13A and protrudes into a shape in contact with the outer side surface 11Y and the inner side surface 11X of the side frame 11, respectively. , And has a shape. Here, the outer peripheral surface 12 of the reinforcing pipe 12 described above corresponds to the “joint surface” and the “opposing surface” of the present invention, and the inner side surface 11X and the outer surface 11Y of the side frame 11 respectively correspond to the “joint surface” of the present invention. Equivalent to.

  As shown in FIGS. 3 and 5, the above-described filling area 13A is not formed in the formation region of each protrusion 11B protruding from the insertion hole 11A, and the difference shown in FIG. 4 without these protrusions 11B. Only four regions in the circumferential direction in which a radial gap T between the inner peripheral surface 11Aa of the insertion hole 11A and the outer peripheral surface 12A of the reinforcing pipe 12 is formed are filled. Each of the filling regions 13A described above is integrally bonded to the inner peripheral surface 11Aa of the insertion hole 11A and the outer peripheral surface 12A of the reinforcing pipe 12 facing the inner peripheral surface 11Aa by integral molding. Is formed.

  Further, the overhang regions 13B of the resin member 13 described above are formed on the inner side surface 11X and the outer side surface 11Y of the side frame 11 from the respective positions that have been extracted from the inner and outer insertion holes 11A in the sheet width direction of the respective filling regions 13A. And extending in the form of a fan plate toward the outside in the radial direction. Each overhang region 13B described above is formed in a state in which the inner surface 11X and the outer surface 11Y of the side frame 11 described above are widely and integrally bonded to each other by integral molding. Further, the inner peripheral surface 11Aa facing the radially inner side of each overhang region 13B is continuous with the inner peripheral surface 11Aa of each filling region 13A described above, and is integrally formed along the outer peripheral surface 12A of the reinforcing pipe 12. It is formed in a state of being bonded more widely and integrally.

  As described above, the resin member 13 includes the outer peripheral surface 12A of the reinforcing pipe 12 inserted into the insertion hole 11A of the side frame 11 described above, and the insertion hole 11A that is radially opposed to the outer peripheral surface 12A. The circumferential surface 11Aa and the inner side surface 11X and the outer side surface 11Y of the side frame 11 forming the peripheral region of the insertion hole 11A are provided in a state of being integrally bonded to each surface. By the resin member 13, the reinforcing pipe 12 is firmly and integrally joined to the side frame 11, and a load such as bending or twisting in various directions input therebetween is strongly received between them. Can be done.

Specifically, the above-described resin member 13 has each overhang region 13B that is bonded to the inner surface 11X and the outer surface 11Y of the side frame 11 so as to be integrally overlapped with each other. Are integrally connected to each other by the respective filling regions 13A, and in this state, are widely and integrally bonded to the outer peripheral surface 12A of the reinforcing pipe 12. With this configuration, the resin member 13 is integrally joined to the reinforcing pipe 12 even when various loads such as bending and twisting are input between the reinforcing pipe 12 and the side frame 11. Further, the side frames 11 are strongly received from both sides in the seat width direction by the overhanging regions 13B, so that the various loads inputted can be strongly transmitted to the reinforcing pipe 12 to be received.
<Summary>

  In summary, the sheet 1 of the present embodiment has the following configuration. That is, the vehicle seat (seat 1) in which the joint surfaces of the two members joined together (the outer peripheral surface 12A of the reinforcing pipe 12 and the inner side surface 11X and the outer side surface 11Y of the side frame 11) are not parallel to each other. It is. One of the two members (reinforcing pipe 12) is configured to be inserted into the insertion hole (insertion hole 11A) provided in the other (side frame 11). The opposing surface (outer peripheral surface 12A) of one (reinforcing pipe 12) facing the inner peripheral surface (inner peripheral surface 11Aa) of the insertion hole (inserting hole 11A) and the inner peripheral surface (inner peripheral surface 11Aa). With respect to each surface straddling either the front or back surface (inner surface 11X or outer surface 11Y) of the other (side frame 11) constituting the joint surface that is not parallel to the surface (outer peripheral surface 12A) A resin member (resin member 13) molded in an integrally cured state is provided, and the two members (reinforcing pipe 12 and side frame 11) are integrated with each other through this resin member (resin member 13). It is joined.

  With such a configuration, the joint surfaces of the two members joined to each other (the outer peripheral surface 12A of the reinforcing pipe 12 and the inner side surface 11X and the outer side surface 11Y of the side frame 11) are not parallel to each other. Even if it exists, both can be simply and firmly joined to each other by the configuration in which the resin member (resin member 13) is poured between them and cured integrally.

  In addition, the resin member (resin member 13) is molded in a state of being integrally cured with respect to each surface across the front and back surfaces (inner surface 11X and outer surface 11Y) of the other (side frame 11). With such a configuration, the joining of the two members (the reinforcing pipe 12 and the side frame 11) via the resin member (the resin member 13) can be further strengthened.

  The other (side frame 11) is configured as a plate material, and one (reinforcing pipe 12) is inserted into the insertion hole (insertion hole 11A) opened in the other (side frame 11). It is configured as. By adopting such a configuration, it is possible to easily and firmly join the pipe material and the plate material in which the joint surfaces are not parallel to each other and have different shapes, without using welding.

  Then, the structure of the sheet | seat 1 (vehicle seat) of Example 2 is demonstrated using FIG. In this embodiment, the resin member 13 provided between the reinforcing pipe 12 and the side frame 11 is not formed by injection molding as shown in Embodiment 1, but a thermoplastic nonwoven fabric F is formed by a hot press mold. By being set in the M and subjected to hot press molding, the reinforcing pipe 12 and the side frame 11 are melted and cured so as to be integrally bonded thereto. In addition, since it is the same as the structure shown in Example 1 about the structure except the above, suppose that the same code | symbol is attached | subjected to the structure of each corresponding part, and description is abbreviate | omitted.

  Then, the structure of the sheet | seat 1 (vehicle seat) of Example 3 is demonstrated using FIG. In the present embodiment, the resin member 13 provided between the reinforcing pipe 12 and the side frame 11 is not injection molded as shown in the first embodiment, and the thermoplastic resin R is reinforced by the 3D printer device P. It is set as the structure formed in the state adhere | attached integrally by spraying between the pipe 12 and the side frame 11 and modeling. In addition, since it is the same as the structure shown in Example 1 about the structure except the above, suppose that the same code | symbol is attached | subjected to the structure of each corresponding part, and description is abbreviate | omitted.

  Then, the structure of the sheet | seat 1 (vehicle seat) of Example 4 is demonstrated using FIG. In the present embodiment, with respect to the configuration shown in FIG. 4 of the first embodiment, the protruding region 13B of the resin member 13 does not protrude on the outer surface 11Y side of the side frame 11 and overlaps only on the inner surface 11X side. It is set as the structure which protruded and adhere | attached integrally. Even in such a configuration, the outer peripheral surface 12A of the reinforcing pipe 12 and the inner side surface 11X of the side frame 11 which are in a relationship in which the joint surfaces of the two members joined to each other are not parallel to each other are interposed via the resin member 13. Can be firmly and integrally joined to each other.

  As mentioned above, although embodiment of this invention was described using the four Examples, this invention can be implemented with various forms other than the said Example. For example, the configuration of the vehicle seat according to the present invention can be widely applied to seats used for various vehicles such as airplanes and ships as well as vehicles other than automobiles such as railways. In addition, the configuration of the present invention can be widely applied to those in which the joining surfaces of the two members to be joined are not parallel to each other, and the seat back, the seat cushion, the headrest, and the ottoman In addition to a seat frame having a skeleton of a seat structure such as the above, it can also be applied to joining of functional parts such as various brackets and seat adjusters. The two members may be a metal material or a resin material, or may be a combination of members made of the same material, or may be a combination of members made of different materials.

  In addition, the bonding surfaces of the two members only have to be in a relationship that is not parallel to each other, and each of the bonding surfaces is configured as a flat surface, and one is configured as a curved surface, Alternatively, the surface shape of each joint surface may be the same type or different types, such as those composed of both curved surfaces. Further, one of the two members may be inserted into a position facing the inner peripheral surface of the insertion hole with respect to the insertion hole formed in the other, and the difference is not necessarily required. It does not have to be inserted into the state of penetrating the insertion hole.

1 seat (vehicle seat)
2 Seat back 3 Seat cushion 4 Headrest 10 Back frame 11 Side frame (the other of the two members)
11A Insertion hole 11Aa Inner peripheral surface 11B Protrusion 11X Inner side surface (joint surface)
11Y outer surface (joint surface)
12 Reinforcement pipe (one of two members)
12A Outer peripheral surface (joint surface, opposing surface)
13 Resin member 13A Filling area 13B Overhang area T Clearance M Mold D R Resin F Nonwoven fabric P 3D printer device

Claims (3)

A vehicle seat in which the joining surfaces of the two members to be joined to each other are not parallel to each other,
One of the two members is configured to be provided as a state of being inserted into an insertion hole opened in the other,
An inner peripheral surface of the insertion hole, the one opposing surface facing the inner peripheral surface, and the other surface on the other side constituting the joining surface that is oriented not parallel to the opposing surface; A vehicle seat in which a resin member molded in a state of being integrally cured with respect to each surface is provided across the two surfaces, and the two members are integrally joined to each other via the resin member. The vehicle seat according to claim 1,
A vehicle seat in which the resin member is molded in a state of being integrally cured with respect to each surface across the other front and back surfaces. The vehicle seat according to claim 1 or 2,
The vehicle seat, wherein the other is configured as a plate material, and the one is configured as a pipe material that is inserted into the insertion hole formed in the other.

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