JP2019034635A - Vehicle seat - Google Patents

Abstract

To disclose one example of a vehicle seat which can inhibit deflection of a tilt arm.SOLUTION: A vehicle seat includes a spacer 35 disposed between a tilt arm 22 and a side frame 11 in a seat width direction. The spacer 35 has a slide contact part 35A which may slidably contact with at least one of the tilt arm 22 and the side frame 11. The structure allows the tilt arm 22 to contact with the slide contact part 35A to be inhibited from being displaced in the seat width direction when a load acts on the tilt arm 22. Thus, even if the load acts on the tilt arm 22, the tilt arm 22 can be inhibited from being significantly deflected in the seat width direction in a twisting manner.SELECTED DRAWING: Figure 11

Description

  The present application relates to a vehicle seat that is mounted on a vehicle and includes a shield that covers a side surface of a cushion frame.

  For example, in the vehicle seat described in Patent Document 1, the shield 20 is fixed to the side frame (lower arm) 11 via the bracket 14. The side frame is a member that constitutes a part of the cushion frame, and is a member that extends in the seat front-rear direction on the side in the seat width direction.

  The cushion frame constitutes the skeleton of the seat cushion. A seat cushion is a part for supporting a seated person's buttocks. Further, the vehicle seat is provided with a tilt arm 12A for changing a front end side inclination angle of the seat cushion.

  The tilt arm 12A extends in the front-rear direction of the seat, and has a connecting portion that is swingably connected to the side frame 11 on the rear end side of the seat. Each code is a reference code described in Patent Document 1.

JP 2016-49796 A

  In the vehicle seat described in Patent Document 1, the shield is fixed to the side frame. For this reason, in the vehicle seat, the “load in the seat width direction” and the “torsion load with the front-rear direction of the seat as the central axis” acting on the shield act on the side frame.

  On the other hand, in the configuration in which the shield is fixed to the tilt arm, most of the load acts on the tilt arm. The tilt arm has a cantilever structure in which one end side in the extending direction is connected to the side frame and the other end side in the extending direction is not restrained.

  For this reason, when the load acts on the tilt arm, there is a possibility that the tilt arm is greatly bent and deformed in the sheet width direction so that the tilt arm is twisted. The present application discloses an example of a vehicle seat capable of suppressing the bending deformation described on the left.

  The vehicle seat includes a spacer (35) disposed between the tilt arm (22) and the side frame (11) in the seat width direction. The spacer (35) has a sliding contact portion (35A) capable of sliding contact with at least one of the tilt arm (22) and the side frame (11).

  As a result, when the load is applied to the tilt arm (22), the tilt arm (22) is displaced in the sheet width direction by contacting the tilt arm (22) with the sliding contact portion (35A). Is suppressed. Therefore, even when the load is applied to the tilt arm (22), it can be suppressed that the tilt arm (22) is greatly bent and deformed in the sheet width direction so as to be twisted.

The vehicle seat may have the following configuration.
That is, it is desirable that the spacer (35) is positioned on the seat front end side of the side frame (11). Accordingly, since the sliding contact portion (35A) is disposed at a position separated from the connecting portion (22C) between the tilt arm (22) and the side frame (11), the tilt arm (22) is greatly bent and deformed. It can be suppressed.

  That is, since the tilt arm (22) has a cantilever support structure, the deformation dimension of the tilt arm (22) increases as the distance from the connecting portion (22C) increases. Therefore, if the sliding contact portion (35A) is arranged at a position separated from the connecting portion (22C), the bending deformation of the tilt arm (22) can be effectively suppressed.

  The side frame (11) has a plate surface that is substantially orthogonal to the seat width direction and extends in the seat front-rear direction, and the upper end of the web (11A) toward the tilt arm (22) in the seat width direction. It is desirable that the spacer (35) is fixed to the side frame (11) so as to be in sliding contact with the tilt arm (22). Thereby, it may be possible to increase the swing range of the tilt arm (22).

  That is, if the spacer (35) is fixed to the tilt arm (22) and the sliding contact portion (35A) is in sliding contact with the web (11A), when the tilt arm (22) swings, The spacer (35) may interfere with the flange (11B).

  In contrast, if the spacer (35) is fixed to the side frame (11) and the sliding contact portion (35A) is in sliding contact with the tilt arm (22), in principle, the spacer (35) Does not interfere with the flange (11B). Therefore, the swing range of the tilt arm (22) related to the vehicle seat can be increased.

  It is desirable that the sliding contact portion (35A) has a substantially arc shape centered on the swing center of the tilt arm (22). Thereby, the contact state between the sliding contact portion (35A) and the web (11A) becomes substantially constant regardless of the swing angle of the tilt arm (22). Therefore, the tilt arm (22) can be stably operated.

  The spacer (35) has a protruding boss portion (35C) that is rotatably fitted in a fitting hole (11D) provided in the web (11A), and an engagement hole provided in the web (11A) ( 11E) and an engaging protrusion (35D) that is engaged and engaged with the elastic protrusion 11E) and is elastically displaceable. The spacer (35) including the boss part (35C) and the engaging protrusion part (35D) is preferably an integrally molded product made of resin.

  As a result, if the operator who mounts the spacer (35) on the side frame (11) rotates the spacer (35) with the boss part (35C) fitted in the fitting hole (11D), the engagement is achieved. The protrusion (35D) can be fitted into the engagement hole (11E). Therefore, the operator can easily attach the spacer (35) to the side frame (11), so that it is possible to suppress an increase in the number of steps for assembling the vehicle seat.

  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 according to a first embodiment of the present invention. 1 is an exploded perspective view of a seat cushion according to a first embodiment of the present invention. It is a perspective view of the cushion pad concerning a 1st embodiment of the present invention. It is an enlarged view of a displacement mechanism etc. concerning a 1st embodiment of the present invention. It is a figure which shows the tilt arm, side frame, side shield 33, etc. which concern on 1st Embodiment of this invention. It is a figure which shows the tilt arm, side frame, seat lifter, etc. which concern on 1st Embodiment of this invention. It is a figure which shows the tilt arm which concerns on 1st Embodiment of this invention, a side frame, a spacer, etc., Comprising: It is a figure which shows the state which the tilt arm raised. It is a figure which shows the tilt arm which concerns on 1st Embodiment of this invention, a side frame, a spacer, etc., Comprising: It is a figure which shows the state which the tilt arm fell. FIG. 3A is a perspective view of a tilt arm according to the first embodiment of the present invention. B is an exploded perspective view of the tilt arm according to the first embodiment of the present invention. FIG. It is a figure which shows the tilt arm which concerns on 1st Embodiment of this invention, a side frame, a spacer, etc., Comprising: It is a figure which shows the state which the tilt arm raised. It is a figure which shows the tilt arm which concerns on 1st Embodiment of this invention, a side frame, a spacer, etc., Comprising: It is a figure which shows the state which the tilt arm fell. FIG. 3A is a perspective view of a spacer according to the first embodiment of the present invention. B is a side view of the spacer according to the first embodiment of the present invention. FIG. FIGS. 7A and 7B are diagrams showing a spacer mounting procedure according to the first embodiment of the present invention. FIGS. A shows the spacer which concerns on 1st Embodiment of this invention. B is a top view of the spacer according to the first embodiment of the present invention. FIG. It is a figure which shows the tilt arm, side frame, spacer, etc. which concern on 2nd 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, when there is no notice such as “one”, two or more members may be provided.

(First embodiment)
In this embodiment, a vehicle seat according to the present invention is applied to a vehicle front seat. 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.

1.1 Frame Structure The back frame 7 shown in FIG. 2 is a frame that forms the skeleton of the seat back 5. The back frame 7 includes at least a pair of side frames 7A and 7B, an upper panel (not shown), a lower panel 7C, and the like.

  Each of the side frames 7A and 7B is a frame that extends substantially in the vertical direction and is disposed on both ends in the seat width direction. The lower panel 7C extends in the seat width direction and connects the lower ends of the side frames 7A and 7B.

  The cushion frame 9 is a frame constituting the skeleton of the seat cushion 3. The cushion frame 9 includes at least 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.

  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 an upper end side that is swingably connected to the side frames 11 and 13, and a lower end side that is swingably connected to the bracket 18C.

  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 seat front-rear direction 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.

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 tilt function is a function of displacing the portion 19D in the vertical direction while changing the front end side tilt angle of the cushion pad 19 (seat cushion 3), that is, the tilt angle of the seat front end side portion 19D (hereinafter referred to as tilt angle). is there.

  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 seating pad portion 19A when the front edge portion of the seat cushion 3 is displaced.

  In the displacement mechanism 21 according to the present embodiment, the seat pad portion 19A and the side pad portions 19B and 19C are displaced in conjunction with each other when the tilt function is activated. When the ottoman function and the cushion length variable function are activated, the seat pad portion 19A is displaced while the side pad portions 19B and 19C maintain the current position.

<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. Since each of the pair of tilt arms 22 has a substantially bilaterally symmetric structure, the tilt arm structure and the like will be described below using the tilt arm 22 positioned on the outer side in the sheet width direction as an example.

  As shown in FIG. 5, the tilt arm 22 is swingably connected to the side frame 11 via a connecting pin P1, and as shown in FIGS. Extends to the side.

  As shown in FIG. 4, the tilt panel 24 is a plate-like member extending in the sheet width direction so as to connect the leading 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 angles of the front end portion of the seat pad portion 19A and the side pad portions 19B and 19C are changed in conjunction therewith. That is, when the tilt arm 22 is displaced upward, the tilt angle increases (see FIG. 7). When the tilt arm 22 is displaced downward, the tilt angle becomes smaller (see FIG. 8).

  The front panel 25 (see FIG. 4) is a part that supports the ottoman 19E. The front panel 25 is driven by a link mechanism (not shown) or the like and displaced in the front-rear direction of the seat. The link mechanism is attached to the tilt panel 24.

  Therefore, when the pair of tilt arms 22 and 23 swings, the ottoman 19E changes the tilt angle in conjunction with the swing. When the link mechanism is activated, the ottoman 19E is displaced while the current tilt angle is maintained.

<Tilt arm structure>
As shown in FIGS. 9A and 9B, 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). The connecting portion 22C is swingably connected to the side frame 11 via a connecting pin P1.

  The distal end side arm portion 22B is welded and fixed to the distal end side of the connecting arm portion 22A. The front end side arm portion 22B, that is, the tilt arm 22, is provided with a planar support portion 27 for supporting the seat front end side of the side pad portion 19B.

  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, the planar support portion 27 has at least receiving surfaces 27A to 27C that are in surface contact with the side pad portion 19B.

  The 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 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.

  The 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 is a surface capable of receiving a load in the sheet width direction by making surface contact with the side pad portion 19B.

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 22D (see FIG. 9A) of each of the pair of tilt arms 22 and 23. The front shield 30 according to the present embodiment is fixed to the tip 22D of each of the tilt arms 22 and 23 by a fastener (not shown) such as a screw.

  The shield 33 (hereinafter, referred to as a side shield 33) covers one end side of the cushion frame 9 in the seat width direction (left side in the present embodiment). A side shield (not shown) similar to the side shield 33 is also provided on the other 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.

  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 with a mechanical fastener such as a screw or an elastic engagement tool such as a snap fit.

  An operation unit 40 is provided on the left side shield 33 (in this embodiment, the front shield unit 31). The operation unit 40 is a part operated by a seated person, and is a part 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.

<Support structure of front shield part>
As shown in FIG. 5, an operation unit 40 is mounted on the back side of the front shield unit 31 via a fixing bracket 41 and the like. The back side of the front shield part 31 refers to the side frame 11 and the tilt arm 22 side of the front shield part 31.

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

  As shown in FIG. 9A, the tilt arm 22 is provided with a first protrusion 31D and a second protrusion 31E. The first protrusion 31D and the second protrusion 31E are examples of a mounting part for mounting the front shield part 31. As shown in FIG. 5, the front shield part 31 is provided with a first insertion hole 31 </ b> A, a second insertion hole 31 </ b> B, and a third protrusion (not shown).

  The first insertion hole 31A and the second insertion hole 31B are insertion holes opened at the back of the seat. A first protrusion 31D is inserted into the first insertion hole 31A. A second protrusion 31E is inserted into the second insertion hole 31B. The third protrusion is provided on the fixed bracket 41 and is inserted into an insertion hole 31 </ b> F (see FIG. 9A) provided on the tilt arm 22.

2.3 Structure that suppresses bending deformation of tilt arm <Outline of suppression structure>
For example, when the operation unit 40 is operated by a seated person, “a load in the seat width direction” or “a torsion load with the seat longitudinal direction as the central axis” acts on the tilt arm 22. The tilt arm 22 has a cantilever structure in which one end side (connecting portion 22C) in the extending direction is connected to the side frame 11, and the other end 22D side in the extending direction is not constrained.

  For this reason, when the load acts on the tilt arm 22, there is a possibility that the tilt arm 22 is greatly bent and deformed in the sheet width direction so that the tilt arm 22 is twisted. The suppression structure is a structure for suppressing “deflection deformation of the tilt arm 22” described on the left.

<Details of suppression structure>
As shown in FIGS. 10 and 11, a spacer 35 is disposed between the tilt arm 22 and the side frame 11 and in a portion facing in the sheet width direction. The spacer 35 has at least one of the tilt arm 22 and the side frame 11 (in this embodiment, a sliding contact portion 35A capable of sliding contact with the tilt arm 22).

  As shown in FIGS. 12A and 12B, the sliding contact portion 35A is a portion protruding from the block-shaped spacer main body 35B toward the tilt arm 22 side. As shown in FIG. 7, the sliding contact portion 35 </ b> A according to the present embodiment is a substantially arc-shaped projecting portion centering on the swing center Ot of the tilt arm 22.

  As shown in FIG. 10, the side frame 11 includes a web 11A, a first flange 11B, and a second flange 11C. Thereby, the shape of the cross section substantially orthogonal to the seat front-rear direction of the side frame 11 is substantially U-shaped or substantially U-shaped.

  The web 11A is a strip-shaped part having a plate surface substantially orthogonal to the sheet width direction and extending in the sheet front-rear direction. The first flange 11B is a portion protruding in the sheet width direction toward the tilt arm 22 at the upper end of the web 11A.

  The second flange 11C is a portion protruding in the sheet width direction toward the tilt arm 22 at the lower end of the web 11A. That is, the first flange 11B and the second flange 11C protrude outward from the web 11A in the sheet width direction. In addition, the web 11A, the first flange 11B, and the second flange 11C are integrally formed products in which a single metal plate is subjected to plastic processing such as press processing.

  The spacer 35 is fixed to the seat front end side of the side frame 11 in a state in which the spacer 35 can come into sliding contact with the tilt arm 22. That is, as shown in FIG. 7, the spacer 35 is fixed to the sheet front end side of the web 11 </ b> A in a state of being disposed between the first flange 11 </ b> B and the second flange 11 </ b> C in the vertical direction.

<Spacer structure and fixing structure>
As shown in FIG. 12B, the spacer main body 35B is provided with a boss portion 35C and an engaging projection portion 35D. As shown in FIG. 13B, a fitting hole 11D and an engagement hole 11E are provided on the front end side of the web 11A.

  The fitting hole 11D is a round hole into which the protruding boss portion 35C is rotatably fitted. The engagement hole 11E is a hole into which the engagement protrusion 35D is fitted and engaged. The engagement protrusion 35D is elastically displaceable between an engagement position fitted in the engagement hole 11E and a non-engagement position shifted from the engagement position.

  Specifically, as shown in FIG. 14A, the engagement protrusion 35D is provided at the tip of the leaf spring part 35E. In the engaging protrusion 35D, inclined surfaces 35F and 35G that are inclined with respect to the circumferential direction Lo are provided at a portion that intersects the circumferential direction Lo (see FIG. 14A) centering on the boss portion 35C. Yes.

  The inclined surfaces 35F and 35G are inclined in such a direction that a force for elastically displacing the engaging protrusion 35D is generated in the engaging protrusion 35D when the engaging protrusion 35D contacts the outer edge of the engaging hole 11E. doing. The spacer 35 including the boss portion 35C, the engagement projection portion 35D, the leaf spring portion 35E, and the sliding contact portion 35A is integrally formed of resin.

<Spacer fixing method>
An operator who attaches the spacer 35 to the side frame 11 attaches the spacer 35 to the side frame 11 in the following procedure. First, as shown in FIG. 13A, the operator fits the boss portion 35C into the fitting hole 11D.

  Next, in a state where the boss portion 35C is fitted in the fitting hole 11D, the operator rotates the spacer 35 around the boss portion 35C so that the engaging projection portion 35D side approaches the engaging hole 11E side. As a result, the engagement protrusion 35D automatically fits into the engagement hole 11E, and the mounting operation of the spacer 35 ends.

3. Features of the Vehicle Seat According to the Present Embodiment The vehicle seat 1 includes a spacer 35 disposed between the tilt arm 22 and the side frame 11 in the seat width direction. The spacer 35 has a slidable contact portion 35 </ b> A capable of sliding contact with at least one of the tilt arm 22 and the side frame 11.

  Thereby, when the load is applied to the tilt arm 22, the tilt arm 22 is prevented from being displaced in the sheet width direction by contacting the sliding contact portion 35A. Therefore, even when the load is applied to the tilt arm 22, it can be suppressed that the tilt arm 22 is greatly bent and deformed in the sheet width direction so that the tilt arm 22 is twisted.

  The spacer 35 is located on the seat front end side of the side frame 11. Thereby, since the sliding contact portion 35A is located at a position separated from the connecting portion 22C between the tilt arm 22 and the side frame 11, it is possible to suppress the tilt arm 22 from being greatly bent and deformed.

  That is, since the tilt arm 22 has a cantilever support structure, the deformation dimension of the tilt arm 22 increases as the distance from the connecting portion 22C increases. Therefore, if the slidable contact portion 35A is arranged at a position separated from the connecting portion 22C, the bending deformation of the tilt arm 22 can be effectively suppressed.

  The spacer 35 is fixed to the side frame 11 so as to be in sliding contact with the tilt arm 22. As a result, the swing range of the tilt arm 22 can be increased.

  That is, if the spacer 35 is fixed to the tilt arm 22 and the sliding contact portion 35A is in sliding contact with the web 11A, the spacer 35 interferes with the first flange 11B when the tilt arm 22 swings. There is a risk that.

  On the other hand, if the spacer 35 is fixed to the side frame 11 and the sliding contact portion 35A is in sliding contact with the tilt arm 22, in principle, the spacer 35 may interfere with the first flange 11B. Absent. Therefore, the swing range of the tilt arm 22 can be increased.

  The slidable contact portion 35 </ b> A has a substantially arc shape centered on the swing center of the tilt arm 22. Thereby, the contact state between the sliding contact portion 35 </ b> A and the web 11 </ b> A becomes substantially constant regardless of the swing angle of the tilt arm 22. Therefore, the tilt arm 22 can be stably operated.

  The spacer 35 has a protruding boss 35C that is rotatably fitted in a fitting hole 11D provided in the web 11A, and an engaging protrusion that is engaged and engaged in an engaging hole 11E provided in the web 11A. A portion 35D is provided. The spacer 35 including the boss portion 35C and the engaging projection portion 35D is an integrally molded product made of resin.

  Thereby, if an operator rotates the spacer 35 in the state which fitted the boss | hub part 35C in the fitting hole 11D, it can fit the engagement protrusion part 35D in the engagement hole 11E. Therefore, the operator can easily attach the spacer 35 to the side frame 11, so that it is possible to suppress an increase in the number of steps for assembling the vehicle seat 1.

(Second Embodiment)
The spacer 35 according to the above-described embodiment is made of resin. On the other hand, the spacer 35 according to the present embodiment is formed of metal and welded to the side frame 11 as shown in FIG.

Note that the same constituent elements as those of the above-described embodiment are denoted by the same reference numerals as those of the above-described embodiment, and thus redundant description is omitted.
(Other embodiments)
The spacer 35 according to the above-described embodiment is configured to be in sliding contact with the tilt arm 22 while being fixed to the side frame 11. However, the invention disclosed in this specification is not limited to this. That is, for example, a configuration in which the side frame 11 is in sliding contact with the tilt arm 22 may be employed.

  The spacer 35 according to the above-described embodiment is disposed on the front end side of the side frame 11. However, the invention disclosed in this specification is not limited to this. That is, for example, the spacer 35 may be disposed at a position shifted from the front end of the side frame 11 toward the sheet rear end.

  The side frame 11 according to the above-described embodiment has the first flange 11B that protrudes outward in the seat width direction. However, the invention disclosed in this specification is not limited to this. That is, for example, the side frame 11 having the first flange 11B protruding toward the inner side in the seat width direction may be used.

  The sliding contact portion 35 </ b> A according to the first embodiment described above has a substantially arc shape centered on the swing center of the tilt arm 22. However, the invention disclosed in this specification is not limited to this. That is, for example, the sliding contact portion 31E may be configured by a protruding portion that extends substantially linearly in the vertical direction.

  The spacer 35 according to the first embodiment described above is fixed to the side frame 11 by the boss portion 35C and the engagement projection portion 35D. 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 a passenger car. However, the application of the present invention is not limited to this, and can also be applied to seats used for vehicles such as railway vehicles, ships and aircraft, and stationary seats used for theaters, homes and the like.

  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 5 ... Seat back 7 ... Back frame 9 ... Cushion frame 11 ... Side frame 11A ... Web 11B ... 1st flange 11C ... 2nd flange 11D ... Fitting hole 11E ... Engagement hole 22 ... Tilt arm 22A ... Connecting arm portion 22C ... Connecting portion 22B ... Tip side arm portion 33 ... Side shield 35 ... Spacer 35A ... Sliding contact portion 35B ... Spacer main body 35C ... Boss portion 35D ... Engaging projection 35E ... Plate spring portion 35F ... Inclined surface 40 ... Operation unit

Claims (5)

In the vehicle seat having a shield covering the side surface of the cushion frame,
A side frame constituting a part of the cushion frame, the side frame extending in the seat front-rear direction on one end side in the seat width direction;
A tilt arm that extends in the front-rear direction of the seat and is swingably coupled to the side frame on the rear end side of the seat, the tilt arm for changing the tilt angle of the seat front end side of the seat cushion;
A mounting portion provided on the tilt arm, to which the shield is mounted;
A vehicle, comprising: a spacer disposed between the tilt arm and the side frame in a seat width direction, the spacer having a sliding contact portion capable of sliding contact with at least one of the tilt arm and the side frame. Sheet.   The vehicle seat according to claim 1, wherein the spacer is positioned on a seat front end side of the side frame. The side frame is
A web having a plate surface substantially orthogonal to the seat width direction and extending in the seat front-rear direction; and a flange projecting in the seat width direction toward the tilt arm at the upper end of the web;
The vehicle seat according to claim 1, wherein the spacer is fixed to the side frame in a state in which the spacer can come into sliding contact with the tilt arm.   The vehicle seat according to claim 4, wherein the sliding contact portion has a substantially arc shape centering on a swing center of the tilt arm. A protrusion-like boss provided in the spacer and rotatably fitted in a fitting hole provided in the web;
An engagement protrusion provided on the spacer and engaged with an engagement hole provided on the web, the engagement protrusion being elastically displaceable,
The vehicle seat according to claim 3 or 4, wherein the spacer including the boss portion and the engaging protrusion is an integrally molded product made of resin.