JP2018047750A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a specific structure for supporting a side pad part.SOLUTION: A side pad part is a portion extending in a seat fore and aft direction in each seat width direction end part of a seating surface pad part of a cushion pad and has a planar support part 27 which makes surface contact with the side pad part and supports the side pad part. The structure can securely support the side pad parts, compared to, for example, a linear support structure supporting the side pads with wire members.SELECTED DRAWING: Figure 11

Description

  The present invention relates to a vehicle seat used for vehicles such as automobiles, railway vehicles, ships, and airplanes.

  For example, the vehicle seat described in Patent Document 1 includes a displacement mechanism that displaces the front end side of the seating surface pad portion. The seat pad part is a part of the cushion pad and is a part that supports the seated person's buttocks.

JP 2009-179192 A

  A side pad portion is usually provided at a portion adjacent to the seat surface pad portion in the seat width direction. Unlike the seat pad portion, the side pad portion is an immovable pad portion that is not displaced even when the displacement mechanism is activated. And this application provides the specific structure for supporting a side pad part.

  In this application, it has a seat pad part (19A) for supporting a seated person's buttocks, and a side pad part (19B, 19C) provided in a portion adjacent to the seat pad part (19A) in the seat width direction. A cushion pad (19), a displacement mechanism (21) for displacing the seat front end side of the seat pad portion (19A), and a support member (26) for supporting the seat front end side of the side pad portions (19B, 19C). And a support member (26) having a planar support portion (27) that is in surface contact with the side pad portions (19B, 19C) and supports the side pad portions (19B, 19C).

  In this application, since it has the planar support part (27) which surface-contacts the side pad part (19B, 19C) and supports the side pad part (19B, 19C), for example, the side pad is made of a wire-like member. Compared to the linear support structure that supports the portions (19B, 19C), the side pad portion can be reliably supported.

  That is, in the linear support structure that supports the side pad portions (19B, 19C) with a wire-shaped member, the wire-shaped member and the side pad portions (19B, 19C) are in line contact. Therefore, when a moment centering on the wire-like member acts on the side pad portions (19B, 19C), the side pad portions (19B, 19C) may be rotationally displaced so as to roll.

  On the other hand, in the present application, the planar support portion (27) contacts the side pad portions (19B, 19C) in a larger area than the linear support structure, so that the moment is applied to the side pad portions (19B, 19C). It can be suppressed that the side pad portions (19B, 19C) are rotationally displaced so as to roll even if acts. As a result, the side pad portion can be reliably supported.

In addition, you may comprise the vehicle seat which concerns on this application as follows.
That is, it is desirable that the planar support portion (27) has at least a receiving surface (27A) that can come into surface contact with the side pad portions (19B, 19C) and receive a load in the vertical direction. Thereby, the load of a perpendicular direction can be received reliably.

  The planar support portion (27) desirably has a second receiving surface (27B) capable of receiving a load in the front-rear direction of the seat by making surface contact with the side pad portions (19B, 19C). Thereby, a side pad part can be supported reliably.

  The planar support portion (27) desirably has a third receiving surface (27C) that can come into surface contact with the side pad portions (19B, 19C) and receive a load in the sheet width direction. Thereby, a side pad part can be supported more reliably.

  When the side pad portions (19B, 19C) are provided on the outer side and the inner side in the sheet width direction, the outer receiving surface (27L) is in surface contact with the outer pad (19C) from one end side in the sheet width direction, and The inner receiving surface (27R) is preferably in surface contact with the inner pad (19B) from one end in the sheet width direction.

  Thereby, in particular, even when a force directed from the other end in the seat width direction toward the one end acts on the cushion pad (19), the side pad portions (19B, 19C) can be reliably supported. It can be done.

  The outer receiving surface (27L) is a receiving surface capable of receiving a load in the sheet width direction by making surface contact with the outer pad (19C) positioned on the outer side of the seat surface pad portion (19A) in the sheet width direction. . The inner receiving surface (27R) is a receiving surface capable of receiving a load in the seat width direction by making surface contact with the inner pad (19B) located on the inner side in the seat width direction of the seat pad portion (19A).

  The support member (26) is provided on the tip side of the tilt arm (22, 23) that swings when the front end side tilt angle of the cushion pad (19) is changed, and the displacement mechanism (21) is the tilt arm. It is preferable that the present application is applied to a vehicle seat having (22, 23).

  Incidentally, the reference numerals in the above parentheses are examples showing the correspondence with the specific configurations described in the embodiments described later, and the present invention is limited to the specific configurations indicated by the reference numerals in the parentheses. It is not something.

1 is a perspective view of a vehicle seat 1 according to an embodiment of the present invention. It is a disassembled perspective view of the seat cushion 3 which concerns on embodiment of this invention. It is a perspective view of cushion pad 19 concerning the embodiment of the present invention. It is an enlarged view of the displacement mechanism 21 grade | etc., Which concerns on embodiment of this invention. It is a side view of tilt arms 22 and 23 and side frames 11 and 13 etc. concerning an embodiment of the present invention. It is an expansion perspective view of the displacement mechanism 21 grade | etc., Which concerns on embodiment of this invention. A is a perspective view of the tilt arm 22 according to the embodiment of the present invention. B is an exploded perspective view of the tilt arm 22 according to the embodiment of the present invention. A is a side surface of the tilt arm 22 according to the embodiment of the present invention. B is a top view of the tilt arm 22 according to the embodiment of the present invention. It is AA sectional drawing of FIG. 8A. It is a figure which shows the support structure of the side pad parts 19B and 19C which concern on embodiment of this invention. It is a front end side expansion perspective view of the tilt arm 22 concerning the embodiment of the present invention. It is a figure which shows the support structure of the side pad parts 19B and 19C which concern on embodiment of this invention. It is a back surface side perspective view of the front side shield part 31 which concerns on embodiment of this invention. It is a front end side expansion perspective view of the front side shield part 31 which concerns on embodiment of this invention. It is a figure which shows the support structure of the front side shield part 31 which concerns on embodiment of this invention.

  The “embodiment of the invention” described below shows an example of an embodiment belonging to the technical scope of the present invention. In other words, the invention specific items described in the claims are not limited to the specific configurations and structures shown in the following embodiments.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. In addition, the arrow etc. which show the direction attached | subjected to each figure are described in order to make it easy to understand the relationship between each figure. The present invention is not limited to the directions given in the drawings.

At least one member or part described with at least a reference numeral is provided, except where “one” or the like is omitted. That is, two or more members may be provided.
(First embodiment)
In this embodiment, a vehicle seat according to the present invention is applied to a front seat for a normal passenger car. In addition, the direction in the following description means the direction in the state which assembled | attached the vehicle seat which concerns on this embodiment to the vehicle.

1. Overview of Vehicle Seat As shown in FIG. 1, a vehicle seat 1 includes at least a seat cushion 3 and a seat back 5. The seat cushion 3 is a part for supporting a seated person's buttocks and the like. The seat back 5 is a part for supporting the back of the seated person, and can swing with respect to the seat cushion 3 in the front-rear direction of the seat.

1.1 Frame Structure The back frame 7 shown in FIG. 2 is a frame that forms a skeleton of the seat back 5 and is swingably connected to the cushion frame 9. The cushion frame 9 is a frame constituting the skeleton of the seat cushion 3.

  The back frame 7 includes a pair of side frames 7A and 7B, an upper panel (not shown), a lower panel 7C, and the like. The side frames 7A and 7B are frames that extend substantially in the vertical direction and are disposed on both sides in the seat width direction. In the present embodiment, the seat width direction coincides with the left-right direction of the vehicle.

  The upper panel extends in the seat width direction and connects the upper ends of the side frames 7A and 7B. The lower panel 7C extends in the seat width direction and connects the lower ends of the side frames 7A and 7B.

  The pair of side frames 7A and 7B, the upper panel, and the lower panel 7C are made of metal, and these 7A to 7C are connected and fixed to each other by joining means such as welding or mechanical fasteners such as screws.

  The cushion frame 9 includes a pair of side frames 11 and 13, a front pipe 15 and a rear pipe 17. The side frames 11 and 13 are frames that extend in the front-rear direction of the seat and are disposed at both ends in the seat width direction.

  The front pipe 15 connects the pair of side frames 11 and 13 on the seat front side of the cushion frame 9. The rear pipe 17 connects the pair of side frames 11 and 13 on the seat rear side of the cushion frame 9.

  Note that the pair of side frames 11, 13 and the front pipe 15 and the rear pipe 17 are connected by a connecting method such as caulking using welding or plastic working. Incidentally, in the present embodiment, the front pipe 15 and the rear pipe 17 are fixed to the side frames 11 and 13 by welding.

  The cushion frame 9 is supported by a pair of seat lifters 18. Each seat lifter 18 is disposed below the side frames 11 and 13 and displaces the cushion frame 9 in the vertical direction.

  That is, each seat lifter 18 includes a front lifter link 18A, a rear lifter link 18B, a bracket 18C, and the like. The front lifter link 18A and the rear lifter link 18B have their upper ends connected to the side frames 11 and 13 so as to be swingable, and lower ends connected to the bracket 18C so as to be swingable.

  The bracket 18C is fixed to the floor panel side of the vehicle via a slide rail (not shown). The slide rail displaces the vehicle seat 1 in the front-rear direction of the seat and fixes the vehicle seat 1 to the floor panel.

1.2 Cushion Structure A back pad 3A (see FIG. 1) is attached to the front side of the back frame 7 in the seat. The back pad 3A is a cushion material composed of a foamed elastic body such as urethane. The surface of the back pad 3A is covered with a skin such as leather.

  A cushion pad 19 (see FIG. 2) is mounted on the upper side of the cushion frame 9. As shown in FIG. 3, the cushion pad 19 includes a seat pad portion 19A, side pad portions 19B and 19C, and the like.

  The seat pad portion 19A is a cushion material for supporting the seated person's buttocks. The side pad portions 19B and 19C are cushion materials provided at portions adjacent to the seating surface pad portion 19A in the seat width direction.

  The side pad portions 19B and 19C extend in the front-rear direction of the seat at each end in the seat width direction of the seat pad portion 19A. Note that the seat pad portion 19A and the pair of side pad portions 19B and 19C are integrally molded products made of urethane or the like.

  The vehicle seat 1 according to the present embodiment is a left seat in the front of the vehicle. Therefore, the side pad portion 19B located on the seat width direction inner side of the seat pad portion 19A, that is, on the vehicle width direction center side is also referred to as an inner pad 19B.

  The side pad portion 19C located outside the seat surface pad portion 19A in the seat width direction is also referred to as an outer pad 19C. Note that the inner pad 19B and the outer pad 19C are collectively referred to as side pad portions 19B and 19C.

2. Details of Vehicle Seat 2.1 Displacement Mechanism <Outline of Displacement Mechanism>
The vehicle seat 1 has a displacement mechanism 21 (see FIG. 4). The displacement mechanism 21 is a mechanism that displaces the seat front end side portion 19D (see FIG. 3) of the seat pad portion 19A. Specifically, the displacement mechanism 21 has at least one function among a tilt function, an ottoman function, a cushion length variable function, and the like. The displacement mechanism 21 according to the present embodiment has a tilt function and an ottoman function.

  The tilt function is a function of displacing the part 19D in the vertical direction while changing the front end side inclination angle of the cushion pad 19, that is, the inclination angle of the seat front end side part 19D. The ottoman function is a function for changing the inclination angle of the ottoman 19E (see FIG. 3). The ottoman 19E is a part for placing a foot such as “calf”. The cushion length variable function is a function for changing the seat front-rear length of the seat pad portion 19A when the front edge of the seat cushion 3 is displaced.

  In the displacement mechanism 21 according to the present embodiment, when the inclination angle (hereinafter referred to as a tilt angle) of the seat front end side portion 19D increases, the ottoman 19E swings so as to approach the horizontal. Conversely, as the tilt angle decreases, the ottoman 19E approaches the vertical in conjunction with this.

<Configuration of displacement mechanism>
As shown in FIG. 4, the displacement mechanism 21 includes a pair of tilt arms 22 and 23, a tilt panel 24, and the like. As shown in FIG. 5, each of the pair of tilt arms 22 and 23 is swingably connected to the side frames 11 and 13 via connecting pins C1 and C2, and is connected to the connecting pins as shown in FIG. It extends from the C1, C2 side to the front side of the seat.

  The tilt panel 24 is a plate-like member extending in the sheet width direction so as to connect the front ends of the tilt arms 22 and 23 in the extending direction. The front end of the seat pad 19A is supported by the tilt panel 24. For this reason, when the tilt arms 22 and 23 are swung, the tilt angle of the front end portion of the seat pad portion 19A is changed in conjunction therewith.

  The front panel 25 is a part that supports the ottoman 19E. Oscillations of the pair of tilt arms 22 and 23 are transmitted to the front panel 25 via a link mechanism or cam mechanism (not shown). Therefore, the ottoman 19E swings with respect to the tilt panel 24 in conjunction with the swing of the pair of tilt arms 22 and 23.

<Tilt arm structure>
The tilt arm 22 and the tilt arm 23 have the same structure except that they have a bilaterally symmetric structure. Hereinafter, the structure of the tilt arms 22 and 23 according to the present embodiment will be described using the tilt arm 22 as an example.

  As shown in FIGS. 7A and 7B, the tilt arm 22 includes a connecting arm portion 22A, a distal end side arm portion 22B, and the like. The connecting arm portion 22A has a connecting portion 22C (see FIG. 5) that is swingably connected to the side frame 11 via a connecting pin C1.

  The distal end side arm portion 22B is connected and fixed to the distal end side of the connecting arm portion 22A. In the present embodiment, the distal arm portion 22B and the connecting arm portion 22A are connected and fixed by welding as shown in FIGS. 8A and 8B.

  As shown in FIG. 9, the AA cross-sectional shape of the connection fixing portion 22 </ b> D between the connection arm portion 22 </ b> A and the distal end side arm portion 22 </ b> B is a closed cross-sectional shape that draws a closed curve. Specifically, the AA cross-sectional shape in the connection fixing portion 22D of the connection arm portion 22A is a substantially C-shaped or J-shaped open cross-sectional shape in which a part is opened.

  Similarly, the AA cross-sectional shape in the coupling fixing portion 22D of the distal end side arm portion 22B is a substantially C-shaped or J-shaped open cross-sectional shape in which a part is opened. In the present embodiment, the AA cross section of the connecting arm portion 22A and the AA cross section of the distal end side arm portion 22B are both open cross sectional shapes in which the side frame 11 side is open.

  In the connection fixing portion 22D, that is, in the AA cross section, the first plate material P1 constituting the connection arm portion 22A and the second plate material P2 constituting the distal end side arm portion 22B are overlapped in the plate thickness direction at at least two places. It is connected and fixed with.

  Of the two locations, the overlapping direction L1 at the first location WP1 is a direction intersecting the overlapping direction L2 at the second location WP2. Specifically, the overlapping direction L1 at the first location WP1 is substantially parallel to the sheet width direction, and the overlapping direction L2 at the second location WP2 is substantially parallel to the vertical direction.

  As shown in FIG. 8A, the welding location at the first location WP1 extends in a direction inclined with respect to the longitudinal direction (sheet longitudinal direction) and the vertical direction of the connecting arm portion 22A. As shown in FIG. 8B, the welding location at the second location WP2 extends in a direction parallel to the longitudinal direction of the connecting arm portion 22A.

  And the lower end position 22E in the front end side of the front end side arm part 22B is located in the vertical direction lower side from the lower end position 22F in the connection fixing | fixed part 22D, as shown to FIG. 8A. In other words, in the tilt arm 22 according to the present embodiment, the vertical dimension increases toward the front end side in the extending direction, that is, the front end side of the sheet.

  The bead portions 22G to 22K are protrusions or grooves to improve the bending rigidity and torsional rigidity of the distal end side arm portion 22B, that is, the tilt arms 22 and 23. The bead portion 22 </ b> G extends along the outer edges of the tilt arms 22 and 23. The bead portions 22H to 22K are provided in bent portions of the plate material constituting the distal end side arm portion 22B.

2.2 Support structure of side pad portion The front portion of each side pad portion 19B, 19C is supported by the tilt arms 22, 23. Hereinafter, the support structure of the side pad portion will be described as an example by taking the tilt arm 22 side (the sheet right side) as an example.

  The seat front end side of the side pad portion 19B is supported by a support member 26 having a planar support portion 27 as shown in FIG. The planar support portion 27 is a portion that is in surface contact with the side pad portion 19B and supports the side pad portion 19B.

  That is, as shown in FIG. 11, the planar support portion 27 includes receiving surfaces 27 </ b> A to 27 </ b> C that are in surface contact with at least the side pad portion 19 </ b> B. The receiving surface 27A (hereinafter referred to as the first receiving surface 27A) is a surface that can come into surface contact with the side pad portion 19B and receive a load in the vertical direction.

  The receiving surface 27B (hereinafter referred to as the second receiving surface 27B) is a surface that can come into surface contact with the side pad portion 19B and receive a load in the front-rear direction of the seat. Note that the second receiving surface 27B according to the present embodiment receives a load in a direction from the seat front side toward the seat rear side.

  The receiving surface 27C (hereinafter referred to as the third receiving surface 27C) is a surface that can come into surface contact with the side pad portion 19B and receive a load in the sheet width direction. In the present embodiment, as shown in FIG. 12, the third receiving surface 27C on one end side in the sheet width direction and the third receiving surface 27C on the other end side in the sheet width direction are not symmetrical.

  That is, the third receiving surface 27C of the planar support portion 27 (hereinafter referred to as the inner support portion 26A) that comes into surface contact with the inner pad 19B is defined as the inner receiving surface 27R, and the planar support portion 27 (in contact with the outer pad 19C). Hereinafter, when the third receiving surface 27C of the outer support portion 26B is the outer receiving surface 27L, the receiving surfaces 27R and 27L are configured as follows.

  The outer receiving surface 27L comes into surface contact with the outer pad 19C from one end side in the sheet width direction, and the inner receiving surface 27R comes into surface contact with the inner pad 19B from one end side in the sheet width direction. That is, in the present embodiment, the outer receiving surface 27L is in surface contact with the outer pad 19C from the right side (inner side), and the inner receiving surface 27R is also in surface contact with the inner pad 19B from the right side (inner side).

2.2 Shield support structure <Outline of shield>
As shown in FIGS. 1 and 2, the side surface of the cushion frame 9 is covered with shields 30, 33, and the like. The shield 30 (hereinafter referred to as the front shield 30) covers the seat front side of the cushion frame 9.

  The front shield 30 extends in the sheet width direction and is attached to the tip side of each of the pair of tilt arms 22 and 23. The front shield 30 according to the present embodiment is fixed to the tilt arms 22 and 23 by fasteners (not shown) such as screws.

  The shield 33 (hereinafter, referred to as a side shield 33) covers the other end side (left side in the present embodiment) of the cushion frame 9 in the seat width direction. A side shield (not shown) similar to the side shield 33 is also provided on one end side in the sheet width direction (right side in the present embodiment). Hereinafter, the configuration and support structure of the side shield will be described by taking the left side shield 33 as an example.

  Incidentally, the left side shield 33 is provided with an operation unit 40 for changing the inclination angle of the seat back 5 and the position of the seat cushion 3. The right side shield 33 is not provided with the operation unit 40 or the like.

  The side shield 33 includes a front shield part 31, a rear shield part 32, and the like. The front shield part 31 is attached to the tilt arm 22 which is a part of the cushion frame 9 and swings integrally with the tilt arm 22.

  The rear shield part 32 is fixed to the cushion frame 9 such as the side frame 11 and does not move. The rear shield part 32 according to the present embodiment is fixed to the side frame 11 by a mechanical fastener such as a screw or a mechanical joining method such as a snap fit. The snap fit is an engagement and fixing method that uses elastic deformation of the rear shield part 32 or the side frame 11.

<Support structure of front shield part>
On the back side of the front shield part 31, as shown in FIG. 13, an operation part 40 is mounted by a fixing bracket 41 or the like. The back side of the front shield part 31 refers to the side frame 11 and the tilt arm 22 side.

  The fixed bracket 41 is fixed to the front shield part 31 by a fastener such as a P screw. Hereinafter, as shown in FIG. 13, the front shield part 31 refers to a part to which an operation part 40, a fixing bracket 41, and the like are attached.

  As a mounting part for mounting the front shield part 31 to the tilt arm 22, the front shield part 31 includes a first insertion hole 31A and a second insertion hole 31B shown in FIG. 14, and a first insertion hole shown in FIG. Three protrusions 31C are provided.

  As shown in FIG. 15, the tilt arm 22 is provided with a first protrusion 31D inserted into the first insertion hole 31A and a second protrusion 31E inserted into the second insertion hole 31B. As shown in FIG. 11, the first protrusion 31D protrudes in a direction intersecting with the sheet width direction.

  The second protrusion 31E protrudes in a direction parallel to the first protrusion 31D. Note that the first protrusion 31D and the second protrusion 31E according to the present embodiment protrude in the same direction in the front-rear direction of the seat.

  Specifically, each of the first protrusion 31D and the second protrusion 31E protrudes in a direction from the seat rear side toward the seat front side and includes a protruding piece having a plate surface substantially orthogonal to the seat width direction. Has been. Furthermore, the first protrusion 31D is located on the lower side and the seat front side with respect to the second protrusion 31E.

  Then, in a state where the first protrusion 31D and the second protrusion 31E are inserted into the first insertion hole 31A and the second insertion hole 31B (hereinafter referred to as a shield mounting state), as shown in FIG. The length L1 is longer than the insertion direction length L2.

  The insertion direction length L1 refers to the length in the insertion direction of the portion of the first protrusion 31D inserted into the first insertion hole 31A. The insertion direction length L2 refers to the length in the insertion direction of the portion of the second protrusion 31E inserted into the second insertion hole 31B.

  In the present embodiment, in order to realize the above-described shield mounting state, the distal end position of the first protrusion 31D is positioned on the forward side in the insertion direction from the distal end position of the second protrusion 31E, and the first protrusion The insertion direction length of 31D is longer than the insertion direction length of the second protrusion 31E.

  As shown in FIG. 15, guide portions 31G and 31H are provided on the insertion port side (retraction side in the insertion direction) of the first insertion hole 31A and the second insertion hole 31B. The guide portions 31G and 31H are inclined with respect to the insertion direction, and guide the tip of the first projection 31D and the tip of the second projection 31E to the first insertion hole 31A and the first insertion hole 31A.

  In the state where the first protrusion 31D is inserted into the first insertion hole 31A and the state where the second protrusion 31E is inserted into the second insertion hole 31B, the contact surface pressure set in advance at each contact portion Is configured to occur.

  The third protrusion 31C is a protrusion that protrudes from the front shield part 31 toward the tilt arm 22 in the sheet width direction. The third protrusion 31C is fitted in a fitting hole 31F (see FIG. 6) provided in the tilt arm 22.

3. 3. Features of Vehicle Seat According to this Embodiment 3.1 Support Structure of Front Shield Part In this embodiment, a planar support part 27 that supports the side pad parts 19B and 19C by making surface contact with the side pad parts 19B and 19C. have. Thereby, the said side pad part can be reliably supported compared with the linear support structure which supports the side pad parts 19B and 19C with a wire-shaped member, for example.

  That is, in the linear support structure that supports the side pad portions 19B and 19C with a wire-shaped member, the wire-shaped member and the side pad portions 19B and 19C are in line contact. Therefore, when a moment centering on the wire-like member acts on the side pad portions 19B and 19C, the side pad portions 19B and 19C may be rotationally displaced so as to roll.

  On the other hand, in this embodiment, since the planar support part 27 is in contact with the side pad parts 19B and 19C in a wider area than the linear support structure, a moment acts on the side pad parts 19B and 19C. Also, the side pad portions 19B and 19C can be restrained from being rotationally displaced so as to roll. As a result, the side pad portion can be reliably supported.

  The planar support portion 27 has a first receiving surface 27A that can come into surface contact with the side pad portions 19B and 19C and receive a load in the vertical direction. Thereby, the load of a perpendicular direction can be received reliably.

  The planar support portion 27 has a second receiving surface 27B capable of receiving a load in the front-rear direction of the seat by making surface contact with the side pad portions 19B and 19C. Thereby, the side pad portions 19B and 19C can be reliably supported.

  The planar support portion 27 has a third receiving surface 27C that can come into surface contact with the side pad portions 19B and 19C and receive a load in the sheet width direction. Thereby, a side pad part can be supported more reliably.

  When each of the side pad portions 19B and 19C is provided on the outer side and the inner side in the sheet width direction, the outer receiving surface 27L is in surface contact with the outer pad 19C from one end side in the sheet width direction, and the inner receiving surface 27R is Surface contact is made with the inner pad 19B from one end in the sheet width direction.

  As a result, the side pad portions 19B and 19C can be reliably supported even when a force in the direction from the other end in the seat width direction toward the one end is applied to the cushion pad 19.

  That is, since the vehicle seat 1 according to the present embodiment is provided on the left side of the front seat, a seated person who rides on the vehicle sits on the vehicle seat 1 so as to move from the left side of the vehicle to the right side of the vehicle. . For this reason, a load directed from the left side of the vehicle toward the right side of the vehicle acts on the seat cushion 3 including the side pad portions 19B and 19C.

  In contrast, in the present embodiment, the outer receiving surface 27L is in surface contact with the outer pad 19C from the right side (inner side), and the inner receiving surface 27R is also in surface contact with the inner pad 19B from the right side (inner side). The side pad portions 19B and 19C can be reliably supported against the load.

3.2 Shield Support Structure In the present embodiment, the length L1 in the insertion direction of the portion of the first protrusion 31D inserted into the first insertion hole 31A is the second insertion hole 31B of the second protrusion 31E. It is longer than the insertion direction length L2 of the inserted site.

  Thereby, in this embodiment, an assembly operator or an automatic assembly machine (hereinafter referred to as an operator or the like) inserts the first projection 31D and the second projection 31E into the first insertion hole 31A and the second insertion, respectively. By inserting the hole 31B into the hole 31B, the front shield part 31 can be assembled to the cushion frame. And since the 1st projection part 31D and the 2nd projection part 31E are extended in the direction which cross | intersects a sheet width direction, it can suppress that the front side shield part 31 slips out in a sheet width direction.

  By the way, for example, the fixing portion corresponding to the second projecting portion is configured by a wire-like member, and the fixed portion corresponding to the second insertion hole is configured by a sandwiching portion that grips the wire so as to sandwich the wire. In the case of a vehicle seat (hereinafter referred to as a wire system), it is difficult to reduce the number of assembling steps because the assembling workability is low.

  That is, in the wire system, after inserting the first protrusion into the first insertion hole, an operator or the like bends the shield so that the shield is rotated around the first protrusion side, and wire the clamping part. It is necessary to be intimidated. That is, the wire method requires different types of assembling work such as insertion work and gripping work, and therefore it is difficult to reduce the number of assembling steps.

  On the other hand, in this embodiment, an operator or the like moves the front shield part 31 in one direction, that is, in a direction intersecting the seat width direction with respect to the cushion frame 9 (tilt arms 22 and 23). Thus, the first protrusion 31D and the second protrusion 31E can be inserted and assembled into the first insertion hole 31A and the second insertion hole 31B, respectively.

Therefore, in the vehicle seat 1 according to the present embodiment, it is possible to prevent the front shield part 31 from coming off in the seat width direction while enabling reduction in the number of assembling steps.
In the present embodiment, the first protrusion 31D and the second protrusion 31E protrude in the front-rear direction of the seat. Accordingly, the first projecting portion 31D and the second projecting portion 31E are respectively inserted by moving the front shield portion 31 in the seat front-rear direction (the seat rear side in the present embodiment) with respect to the cushion frame 9. It can be inserted and assembled into the hole 31A and the second insertion hole 31B.

  And in this embodiment, since the 2nd protrusion part 31E protrudes in the same direction as the 1st protrusion part 31D, ie, the seat front side, the front side shield part 31 is set to the seat rear side with respect to the cushion frame 9. By moving, each of the first protrusion 31D and the second protrusion 31E can be easily inserted and assembled.

  In the present embodiment, the first protrusion 31D is provided below the second protrusion 31E. As a result, even when a moment with the front-rear direction of the seat as the rotation axis acts on the front shield part 31, the front shield part 31 can be reliably fixed.

  In the present embodiment, the cushion frame 9 has tilt arms 22 and 23. The first projecting portion 31D and the second projecting portion 31E are provided with the tilt arms 22 and 23, and project in a direction from the rear side toward the front side in the seat front-rear direction. Further, the front shield part 31 has a first insertion hole 31A and a second insertion hole 31B, and is attached to the front shield part 31 that swings integrally with the tilt arms 22 and 23.

  And according to the said structure, since the front side shield part 31 can be displaced interlocking with rocking | fluctuation of the tilt arms 22 and 23, it suppresses that the designability (look) of the front side shield part 31 is impaired. it can.

3.3 Structure of Tilt Arm The tilt arms 22 and 23 according to the present embodiment have a configuration in which the connecting arm portion 22A and the distal end side arm portion 22B are connected and fixed. Therefore, since each of the connecting arm portion 22A and the distal end side arm portion 22B can be separately molded, the tilt arms 22 and 23 can be molded relatively easily regardless of simple shapes or complicated shapes. .

  In this embodiment, the connecting and fixing portion 22D between the connecting arm portion 22A and the distal end side arm portion 22B has a closed cross-sectional shape, so that the bending rigidity and torsional rigidity of the tilt arms 22 and 23 can be improved. Therefore, in the present embodiment, it is possible to mold the tilt arms 22 and 23 relatively easily even if the shape is complicated, while improving the rigidity of the tilt arms 22 and 23.

  In the present embodiment, the overlapping direction L1 at the first location WP1 is a direction that intersects the overlapping direction L2 at the second location WP2. Thereby, compared with the case where the two overlapping directions are parallel to each other, the rigidity of the connecting and fixing portion 22D can be reliably improved.

  In the present embodiment, the overlapping direction L1 at the first location WP1 is substantially parallel to the sheet width direction, and the overlapping direction L2 at the second location WP2 is substantially parallel to the vertical direction. Thereby, it is possible to effectively improve the rigidity of the connection fixing portion 22D.

  In the present embodiment, the lower end position on the distal end side of the distal end side arm portion 22B is located on the lower side in the vertical direction than the lower end position in the connection fixing portion 22D. In the tilt arm having such a configuration, a large torsional moment is likely to act on the coupling fixing portion 22D.

  However, in this embodiment, the connecting and fixing portion 22D between the connecting arm portion 22A and the distal arm portion 22B has a closed cross-sectional shape, so that the torsional rigidity of the tilt arms 22 and 23 can be improved, and the above-described torsional moment Can compete well.

(Other embodiments)
The vehicle seat 1 according to the above-described embodiment has a tilt function and an ottoman function. However, the invention disclosed in this specification is not limited to this. That is, for example, the present invention can be applied to a vehicle seat having at least one of a tilt function, an ottoman function, and a cushion length variable function, or a vehicle seat that does not have the displacement mechanism 21.

  The vehicle seat 1 according to the above-described embodiment has the planar support portion 27. However, the invention disclosed in this specification is not limited to this. That is, for example, the planar support portion 27 may be eliminated and the side pad portions 19B and 19C may be supported by the linear support portion.

  The vehicle seat 1 according to the above-described embodiment has the first receiving surface 27 </ b> A to the third receiving surface 27 </ b> C as the planar support portion 27. However, the invention disclosed in this specification is not limited to this. That is, for example, the configuration may include any one receiving surface or any two receiving surfaces among the first receiving surface 27A to the third receiving surface 27C.

  In the above-described embodiment, the outer receiving surface 27L is in surface contact with the outer pad 19C from the right side (inner side), and the inner receiving surface 27R is also in surface contact with the inner pad 19B from the right side (inner side). . However, the invention disclosed in this specification is not limited to this.

  That is, for example, (1) the outer receiving surface 27L is in surface contact with the outer pad 19C from the left side (outer side), and the inner receiving surface 27R is also in surface contact with the inner pad 19B from the left side (outer side), or (2 The outer receiving surface 27L may be in surface contact with the outer pad 19C from the right side (inner side), and the inner receiving surface 27R may be in surface contact with the inner pad 19B from the left side (outer side).

  In the above-described embodiment, the support member 26 is provided on the tip side of the tilt arms 22 and 23. However, the invention disclosed in this specification is not limited to this. That is, for example, the support member 26 may be provided on the rear side of the seat from the tip side of the tilt arms 22 and 23.

  In the above-described embodiment, the first protrusion 31D and the second protrusion 31E are inserted into the first insertion hole 31A and the second insertion hole 31B, and the front shield part 31 (side shield 33) is attached to the cushion frame 9. It was. However, the invention disclosed in this specification is not limited to this. That is, for example, the wire method may be used.

  In the above-described embodiment, the first protrusion 31D and the second protrusion 31E are provided in the tilt arms 22 and 23, and the first insertion hole 31A and the second insertion hole 31B are provided in the front shield part 31. It was. However, the invention disclosed in this specification is not limited to this.

  That is, for example, (1) the first protrusion 31D and the second protrusion 31E are provided in the front shield part 31, and the first insertion hole 31A and the second insertion hole 31B are provided in the tilt arms 22 and 23. (2) The first protrusion 31D and the second insertion hole 31B are provided in the tilt arms 22 and 23, and the first insertion hole 31A and the second protrusion 31E are provided in the front shield part 31. It may be a configuration.

  In the above-described embodiment, the first protrusion 31D and the second protrusion 31E are configured to protrude to the front side of the seat. However, the invention disclosed in this specification is not limited to this. That is, for example, (1) the first protrusion 31D and the second protrusion 31E protrude to the rear of the seat, or (2) the first protrusion 31D and the second protrusion 31E protrude in the vertical direction. There may be.

  The side shield 33 according to the above-described embodiment is configured by the front shield part 31 and the rear shield part 32. However, the invention disclosed in this specification is not limited to this. That is, for example, the side shield 33 configured by one or three or more shield portions may be used.

  The tilt arms 22 and 23 according to the above-described embodiment have a configuration in which the connecting arm portion 22A and the distal end side arm portion 22B are connected. However, the invention disclosed in this specification is not limited to this. That is, for example, the tilt arms 22 and 23 may be integrally formed products formed of a single member.

  In the above-described embodiment, the connection fixing portion 22D between the connection arm portion 22A and the distal end side arm portion 22B has a closed cross-sectional shape. However, the invention disclosed in this specification is not limited to this. That is, for example, the connection fixing portion 22D may have an open cross-sectional shape.

  In the above-described embodiment, the AA cross section of the connecting arm portion 22A and the AA cross section of the distal end side arm portion 22B are both open cross sectional shapes in which the side frame 11 side is opened. However, the invention disclosed in this specification is not limited to this.

  That is, for example, (1) when both the AA cross section of the connecting arm portion 22A and the AA cross section of the distal end side arm portion 22B have an open cross-sectional shape with the upper side open, or (2) any AA The cross section may also be a closed cross-sectional shape, and one of the arm portions may be inserted into the other arm portion to form a closed cross-sectional shape.

  In the above-described embodiment, in the connection fixing portion 22D, the first plate material P1 constituting the connection arm portion 22A and the second plate material P2 constituting the distal end side arm portion 22B are overlapped in the plate thickness direction at at least two locations. The connection was fixed with. However, the invention disclosed in this specification is not limited to this.

  In the above-described embodiment, the overlapping direction L1 at the first location WP1 is a direction intersecting with the overlapping direction L2 at the second location WP2. However, the invention disclosed in this specification is not limited to this.

  In the above-described embodiment, the overlapping direction L1 at the first location WP1 is substantially parallel to the sheet width direction, and the overlapping direction L2 at the second location WP2 is substantially parallel to the vertical direction. However, the invention disclosed in this specification is not limited to this.

  In the above-described embodiment, the lower end position 22E on the distal end side of the end side arm portion 22B is located on the lower side in the vertical direction than the lower end position 22F in the connection fixing portion 22D, as shown in FIG. 8A. However, the invention disclosed in this specification is not limited to this.

  In the above-described embodiment, the vehicle seat according to the present invention is applied to the front seat for a normal passenger car. However, the application of the present invention is not limited to this, and can be applied to other automobile seats or seats used for vehicles such as railway vehicles, ships and aircraft.

  Furthermore, the present invention is not limited to the above-described embodiment as long as it matches the gist of the invention described in the claims. Therefore, you may combine at least 2 embodiment among several embodiment mentioned above.

DESCRIPTION OF SYMBOLS 1 ... Vehicle seat 3 ... Seat cushion 3A ... Back pad 5 ... Seat back 7 ... Back frame 7A ... Side frame 7C ... Lower panel 9 ... Cushion frame 11 ... Side frame 15 ... Front pipe 17 ... Rear pipe 18 ... Seat lifter 18A ... Front lifter link 18B ... Rear lifter link 18C ... Bracket 19 ... Cushion pad 19A ... Seat pad part 19B ... Side pad part 19C ... Side pad part 19E ... Ottoman 21 ... Displacement mechanism 22, 23 ... Tilt arm 22A ... Connecting arm part 22B ... Tip side Arm portion 22C ... Connection portion 22D ... Connection fixing portion 24 ... Tilt panel 25 ... Front panel 26 ... Support member 26A ... Inner support portion 26B ... Outer support portion 27 ... Planar support portion 31 ... Front side seat De portion 31A ... first insertion hole 31B ... second insertion hole 31C ... third protrusion 31D ... first projection 31E ... second protrusion 31G ... guide portion 31F ... fitting hole 32 ... rear shield part

Claims (6)

A cushion pad having a seat pad portion for supporting a seated person's buttocks, and a side pad portion provided in a portion adjacent to the seat pad portion in the seat width direction;
A displacement mechanism for displacing the seat front end side of the seat pad portion;
A vehicle seat comprising: a support member that supports a seat front end side of the side pad portion, and has a planar support portion that is in surface contact with the side pad portion and supports the side pad portion.   The vehicle seat according to claim 1, wherein the planar support portion has a receiving surface capable of receiving a load in a vertical direction while being in surface contact with the side pad portion.   The vehicle seat according to claim 1, wherein the planar support portion has a second receiving surface capable of receiving a load in the front-rear direction of the seat by making surface contact with the side pad portion.   The vehicle seat according to any one of claims 1 to 3, wherein the planar support portion has a third receiving surface capable of receiving a load in a seat width direction by being in surface contact with the side pad portion. . The side pad portion has an outer pad located on the seat width direction outer side of the seat surface pad portion, and an inner pad located on the seat width direction inner side of the seat surface pad portion,
The planar support portion has an outer support portion that makes surface contact with the outer pad, and an inner support portion that makes surface contact with the inner pad,
The outer support portion has an outer receiving surface capable of receiving a load in the sheet width direction in surface contact with the outer pad,
The inner support portion has an inner receiving surface capable of receiving a load in the sheet width direction in surface contact with the inner pad,
The outer receiving surface is in surface contact with the outer pad from one end in the sheet width direction, and the inner receiving surface is in surface contact with the inner pad from one end in the sheet width direction. The vehicle seat according to claim 1. The support member is provided on a tip end side of a tilt arm that swings when the front pad side tilt angle of the cushion pad is changed,
Furthermore, the said displacement mechanism is a vehicle seat of any one of Claim 1 thru | or 5 which has the said tilt arm.

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