JP2020011686A - Vehicle seat - Google Patents

Abstract

To provide a vehicle seat which can inhibit components forming a walk-in mechanism from being displaced by a load of a seat belt.SOLUTION: One embodiment of the disclosure is a vehicle seat having a plate-like inclining member, a plate-like engagement member, a plate-like lock member, and a support member. The inclining member transmits swing force for swinging a back frame to the back frame. The engagement member is coupled to a base plate of the back frame and can swing between an engagement position where the engagement member engages with the inclining member and a non-engagement position where the engagement is released. The lock member can swing between a lock position where the lock member locks the engagement member at the engagement position and a non-lock position where the lock member does not lock. The support member can support the inclining member in a manner that the inclining member can swing relative to the base plate. The support member has a first flange part and a second flange part which sandwich the inclining member and the base plate in a seat width direction.SELECTED DRAWING: Figure 4

Description

  The present disclosure relates to vehicle seats.

  In addition to a reclining device that adjusts the posture by swinging the seat back in the front-rear direction with respect to the seat cushion, the vehicle seats arranged in vehicles etc. A walk-in mechanism is provided for significantly moving the back forward.

  This walk-in mechanism releases the engagement between an engaging member (a so-called pole) and a tilting member (a so-called ratchet plate), thereby tilting the seat back more greatly than tilting by reclining (see Patent Document 1). . Further, the walk-in mechanism has a lock member that locks the displacement of the engagement member.

JP 2009-201783 A

  In a vehicle seat in which a seat belt outlet is provided at a shoulder portion of a seat back, a back frame to which a walk-in mechanism is attached may be displaced by receiving a load mainly in the left-right direction due to the tension of the seat belt. .

  When the back frame is displaced, the positions of the tilting member, the engaging member, and the lock member are shifted, so that engagement and disengagement of these members are hindered, and the walk-in mechanism may not function properly.

  An object of one aspect of the present disclosure is to provide a vehicle seat that can suppress displacement of components constituting a walk-in mechanism due to a load of a seat belt.

  One aspect of the present disclosure is a seat cushion (2), a seat back (3) swingable in a seat front-rear direction with respect to the seat cushion (2), and a back frame (5) supporting the seat back (3). At least one seat belt (8) configured to be stretched from the shoulder of the seat back (3) to the seat cushion (2) while traversing the seat back (3) in the seat width direction; A vehicle seat (1) including a walk-in mechanism (10) for moving a back frame (5) forward. The back frame (5) has a base plate (51) extending vertically.

The walk-in mechanism (10) includes a plate-shaped tilting member (11), a plate-shaped engaging member (12), a plate-shaped locking member (13), and a support member (14). . The tilting member (11) transmits a swinging power for swinging the back frame (5) about an axis parallel to the seat width direction to the back frame (5). The engagement member (12) is connected to the base plate (51), and is between an engagement position where the engagement member engages with the inclination member (11) and a non-engagement position where the engagement with the inclination member (11) is released. Swingable. The lock member (13) is swingable between a lock position where the engagement member (12) is locked at the engagement position and a non-lock position where the engagement member (12) is not locked. The support member (14) swingably supports the tilting member (11) with respect to the base plate (51). The support member (14) has a first flange (14B) and a second flange (14C) sandwiching the tilting member (11) and the base plate (51) in the sheet width direction.

  According to such a configuration, the tilting member (11) and the base plate (51) are held in the sheet width direction by the first flange (14B) and the second flange (14C) of the support member (14). Therefore, when the load due to the seat belt (8) is applied to the base plate (51), the tilting member (11) can be prevented from shifting in the seat width direction.

  Another aspect of the present disclosure provides a seat cushion (2), a seat back (3) swingable in a seat front-rear direction with respect to the seat cushion (2), and a back frame (3) supporting the seat back (3). 5) and at least one seat belt (8) configured to be stretched from the shoulder of the seat back (3) toward the seat cushion (2) while traversing the seat back (3) in the seat width direction. And a walk-in mechanism (10) for moving the back frame (5) forward. The back frame (5) has a base plate (51) extending vertically.

  The walk-in mechanism (10) includes a plate-shaped tilting member (11), a plate-shaped engagement member (12), a plate-shaped lock member (13), a pin (16), and a bush (15). ). The tilting member (11) transmits a swinging power for swinging the back frame (5) about an axis parallel to the seat width direction to the back frame (5). The engagement member (12) is connected to the base plate (51), and is between an engagement position where the engagement member engages with the inclination member (11) and a non-engagement position where the engagement with the inclination member (11) is released. Swingable. The lock member (13) is swingable between a lock position where the engagement member (12) is locked at the engagement position and a non-lock position where the engagement member (12) is not locked. The pin (16) swingably supports the lock member (13) with respect to the base plate (51). The bush (15) supports the pin (16) so as to be rotatable about the axis. The bush (15) protrudes from the surface of the base plate (51) on the side opposite to the lock member (13).

  According to such a configuration, since the pin (16) is held by the bush (15) projecting from the base plate (51), a larger area is obtained as compared with a case where the pin (16) is directly supported by the base plate (51). Can receive the force applied to the pin (16). As a result, when the load due to the seat belt (8) is applied to the base plate (51), the axis of the pin (16) can be prevented from tilting.

  In one aspect of the present disclosure, the walk-in mechanism (10) may further include a support member (14) that supports the tilting member (11) so as to swing with respect to the base plate (51). The support member (14) may have a first flange (14B) and a second flange (14C) that sandwich the tilting member (11) and the base plate (51) in the sheet width direction. According to such a configuration, it is possible to suppress the inclination of the pin (16) and the displacement of the tilting member (11) in the sheet width direction, so that the mechanical strength of the walk-in mechanism (10) is more reliably increased. be able to.

  In one aspect of the present disclosure, the back frame (5) may include a cylindrical side frame (52A) to which the base plate (51) is fixed. The bush (15) may penetrate the side frame (52A) in the seat width direction. According to such a configuration, even when a force large enough to displace the bush (15) is applied to the pin (16), the displacement of the bush (15) is restricted by the side frame (52A). 16) The inclination of the axis can be suppressed.

In one aspect of the present disclosure, the bush (15) includes the base plate (51) and the locking member (1).
3) and a bush flange (15B) disposed between the bush flange (15B). According to such a configuration, the force applied to the pin (16) can be released to the base plate (51) by the bush flange (15B), so that the axis of the pin (16) can be more reliably prevented from tilting. .

  Note that the reference numerals in the parentheses are examples showing the correspondence with the specific configurations and the like described in the embodiments described below, and the present disclosure is limited to the specific configurations and the like indicated in the parentheses. Not something.

FIG. 1 is a schematic perspective view showing a vehicle seat of the embodiment. FIG. 2 is a schematic perspective view of a walk-in mechanism in the vehicle seat of FIG. FIG. 3 is a schematic perspective view of the walk-in mechanism of FIG. 2 viewed from a different direction from FIG. FIG. 4 is a schematic sectional end view taken along line IV-IV in FIG. 5A to 5D are schematic side views showing the operation of the walk-in mechanism in FIG.

Hereinafter, embodiments to which the present disclosure is applied will be described with reference to the drawings.
[1. First Embodiment]
[1-1. Constitution]
The vehicle seat 1 shown in FIG. 1 includes a seat cushion 2, a seat back 3, a cushion frame 4, a back frame 5, a first recliner 6 and a second recliner 7, a seat belt 8, a walk-in mechanism 10, (See FIG. 2).

  The vehicle seat 1 is used as a seat of a passenger car. The directions described below and in the drawings mean directions in a state where the vehicle seat 1 is assembled to a vehicle (that is, a passenger car). In the present embodiment, the seat width direction coincides with the left-right direction of the vehicle, and the seat front coincides with the front of the vehicle.

  The seat cushion 2 is a part for supporting a seated person's buttocks and the like. The seat back 3 is a part for supporting the back of a seated person. The seat back 3 can swing with respect to the seat cushion 2 in the seat front-back direction. The cushion frame 4 supports the seat cushion 2.

  The back frame 5 supports the seat back 3. The back frame 5 has a right side frame 52A and a left side frame 52B that extend in the vertical direction and are spaced apart from each other in the seat width direction, and a base plate 51 fixed to the right side frame 52A. The right side frame 52A and the left side frame 52B are cylindrical members.

  The base plate 51 extends vertically and is fixed to the lower end of the right side frame 52A. The walk-in mechanism 10 is attached to the base plate 51.

  Note that the base plate 51 may be provided on both of the two side frames 52A and 52B. When the walk-in mechanism 10 is disposed on the left side of the vehicle seat 1, the base plate 51 may be provided only on the left side frame 52B.

The first recliner 6 and the second recliner 7 are respectively arranged at different ends of the back frame 5 in the seat width direction. The back frame 5 is connected to the cushion frame 4 via the first recliner 6 and the second recliner 7 so as to be able to swing back and forth.

  The seat belt 8 is configured to extend from the right shoulder of the seat back 3 to the left side of the seat cushion 2 while traversing the seat back 3 in the seat width direction.

  The seat belt 8 may be stretched from the left shoulder of the seat back 3 toward the right portion of the seat cushion 2. Further, the vehicle seat 1 may include a seat belt that is bridged from a right shoulder of the seat back 3 and a seat belt that is bridged from a left shoulder of the seat back 3.

<Walk-in mechanism>
The walk-in mechanism 10 shown in FIG. 2 is a mechanism for moving the back frame 5 forward by rocking the cushion frame 4.

  In the present embodiment, the take-in opening 8 </ b> A of the seat belt 8 is provided on the right side of the seat back 3, so the walk-in mechanism 10 is provided on the right side of the back frame 5. Specifically, the walk-in mechanism 10 is mounted on a mounting surface 51A of the base plate 51, which is a plane perpendicular to the sheet width direction.

  When the outlet 8A for the seat belt 8 is provided on the left side of the seat back 3, the walk-in mechanism 10 is provided on the left side of the back frame 5. That is, the walk-in mechanism 10 is provided below the outlet 8A of the seat belt 8.

  The walk-in mechanism 10 includes a tilting member 11, an engagement member 12, a lock member 13, a support member 14, a bush 15 (see FIG. 3), a first pin 16, a second pin 17, and a third It has a pin 18, a fourth pin 19, a fifth pin 20, a wire bracket 21, and a holding plate 22 (see FIG. 4).

(Tilting member)
The tilting member 11 is a plate-shaped member that transmits a swinging power for swinging the back frame 5 about an axis parallel to the seat width direction to the back frame 5. The tilting member 11 is also called a ratchet plate or a rotating cam.

  The rocking power is generated from a rocking power generating mechanism of the first recliner 6. As the swinging power generation mechanism of the first recliner 6, for example, an electric motor, a spiral (that is, a torsion coil spring), or the like is used.

  The tilting member 11 is configured to be swingable with respect to the back frame 5 about the swing center axis L1 of the back frame 5. That is, the swing center axis of the tilting member 11 coincides with the swing center axis L1 of the back frame 5.

  Specifically, the tilting member 11 is substantially disk-shaped, and has a through hole at the center. The support member 14 is inserted into this through hole. The tilting member 11 is connected to the base plate 51 of the back frame 5 by the support member 14. The tilting member 11 is in surface contact with the mounting surface 51A of the base plate 51.

At the upper end of the tilting member 11, a receiving portion 11A with which the engaging portion 12A of the engaging member 12 can be engaged is formed. Further, the tilting member 11 is connected to a swing power generation mechanism of the first recliner 6.

(Engagement member)
The engagement member 12 is connected to the base plate 51 and is a plate-shaped member that can swing between an engagement position where the engagement member 12 is engaged with the tilt member 11 and a non-engagement position where the engagement with the inclination member 11 is released. It is. The engagement member 12 is also called a pole.

  The engagement member 12 is connected to the base plate 51 by the second pin 17. The engaging member 12 is arranged such that the position in the thickness direction overlaps with the tilting member 11 and the plate surfaces are parallel to each other. The engagement member 12 is in surface contact with the mounting surface 51A of the base plate 51.

  The engagement member 12 is configured to be swingable with respect to the base plate 51 about a swing center axis L2 which is a center axis of the second pin 17. The swing center axis L2 of the engagement member 12 is parallel to the swing center axis L1 of the back frame 5.

  The engaging member 12 has an engaging portion 12A that can be engaged with the receiving portion 11A of the tilting member 11, and a sliding portion 12B on which the lock member 13 slides. The engagement member 12 swings when the sliding portion 12 </ b> B is pressed by the lock member 13.

(Lock member)
The lock member 13 is a plate-shaped member that can swing between a lock position where the engagement member 12 is locked at the engagement position and a non-lock position where the engagement member 12 is not locked.

  The lock member 13 is connected to the base plate 51 by the first pin 16. The lock member 13 has a substantially band-like shape, a first pin 16 is inserted into an upper end portion, and a cam portion 13A is formed in a lower end portion.

  The lock member 13 is arranged so that the position in the thickness direction overlaps with the tilting member 11 and the engagement member 12 and the plate surfaces are parallel to each other. The lock member 13 is configured to be swingable with respect to the base plate 51 about a swing center axis L3 which is a center axis of the first pin 16. The lock member 13 is in surface contact with the mounting surface 51A of the base plate 51.

  The lock member 13 is displaced to the unlocked position by the operation of the wire attached to the wire bracket 21 connected to the first pin 16. The wire is operated by an operation lever. The lock member 13 is held at the lock position by the elastic force of the spring 23 attached to the wire bracket 21.

  The lock member 13 is arranged so that the longitudinal direction is substantially up and down at the lock position. At this time, the cam portion 13A comes into contact with the sliding portion 12B so as to push the sliding portion 12B of the engaging member 12 downward, thereby restricting the swing of the engaging member 12.

  Further, when the lock member 13 is displaced to the unlocked position by swinging, the engaging portion 12 is swung from the engaged position to the non-engaged position by pressing the sliding portion 12B with the cam portion 13A.

(Support member)
The support member 14 is a member that supports the tilting member 11 so as to swing with respect to the base plate 51. The support member 14 is fixed to the tilting member 11 by, for example, welding. On the other hand, the support member 14 is not fixed to the base plate 51.

As shown in FIG. 4, the support member 14 includes a main body 14A, a first flange 14B, and a second flange 14C.
The main body 14A is a cylindrical portion that penetrates the tilting member 11 and the base plate 51. The center axis of the main body 14A coincides with the swing center axis L1 of the back frame 5.

  The first flange portion 14B is a portion extending radially outward from a first end portion of the main body 14A on the side near the tilting member 11. In the present embodiment, the first flange portion 14B is integrated with the main body 14A. The first flange portion 14B is in contact with or close to the surface of the tilting member 11 on the side opposite to the base plate 51 (the right side in the present embodiment).

  The second flange portion 14C is a portion that extends radially outward from a second end portion of the main body 14A on the side closer to the base plate 51. In the present embodiment, the second flange 14C is constituted by a washer inserted from the second end of the main body 14A. The second flange 14C is fixed to the main body 14A by, for example, welding. The second flange portion 14C is in contact with or close to the surface of the base plate 51 on the side opposite to the tilting member 11 (the left side in the present embodiment).

  The first flange portion 14B and the second flange portion 14C sandwich the tilting member 11 and the base plate 51 in the sheet width direction. That is, the first flange portion 14B and the second flange portion 14C regulate the displacement of the tilting member 11 in the sheet width direction.

  Note that a connecting rod 6A that synchronizes the displacement between the first recliner 6 and the second recliner 7 is inserted through the support member 14. A first recliner 6 and a second recliner 7 are connected to both ends of the connecting rod 6A, respectively.

(bush)
The bush 15 is a cylindrical body that supports the first pin 16 so as to be rotatable about the axis. The bush 15 protrudes from the surface of the base plate 51 on the side opposite to the lock member 13 (the left side in this embodiment).

  In the present embodiment, the bush 15 is a component formed independently of the base plate 51, and is fixed to the base plate 51 by, for example, welding. The bush 15 passes through the base plate 51 and the right side frame 52A in the seat width direction.

  Specifically, the bush 15 penetrates a second wall (left wall in the present embodiment) 53B of the right side frame 52A facing the first wall 53A to which the base plate 51 is fixed. The first end of the bush 15 is located on the inner side of the seat back 3 than the right side frame 52A. The second end of the bush 15 is located outside the seat back 3 with respect to the base plate 51.

  The bush 15 has a bush main body 15A having a constant inner diameter along the axial direction, and a bush flange 15B extending radially outward from a second end of the bush main body 15A. The inner diameter of the bush body 15A is substantially the same as the outer diameter of the first pin 16, or is slightly larger than the outer diameter of the first pin 16.

  The bush flange 15B is arranged between the base plate 51 and the lock member 13. The bush flange 15B is in surface contact with both the base plate 51 and the lock member 13. Note that the bush 15 is not fixed to the lock member 13.

(Pin 1)
The first pin 16 supports the lock member 13 so as to swing with respect to the base plate 51. The first pin 16 penetrates the bush 15 in the sheet width direction.

  The first end of the first pin 16 is located on the inner side of the seat back 3 than the bush 15. The second end of the first pin 16 is located outside the seat back 3 with respect to the holding plate 22. In the vicinity of the first end of the first pin 16, a wire bracket 21 is fixed, for example, by welding.

  The first pin 16 has a diameter-increased portion 16A whose diameter is larger than other portions. The shape of the enlarged diameter portion 16A viewed from the axial direction of the first pin 16 is substantially rectangular (see FIG. 2). The enlarged diameter portion 16A is arranged outside the bush 15 and is in contact with the bush flange 15B. The first pin 16 functions as a rotating shaft that swings the lock member 13 by inserting the enlarged diameter portion 16A into the through hole of the lock member 13.

(Pressing plate)
The holding plate 22 is arranged so as to abut on the surface of the tilting member 11, the engaging member 12, and the locking member 13 on the side opposite to the base plate 51 (that is, on the outside of the seat back 3). In the present embodiment, the holding plate 22 covers the receiving portion 11A of the tilting member 11, the entire engaging member 12, and the entire locking member 13.

  The holding plate 22 is fixed to the second pin 17, the third pin 18, the fourth pin 19, and the fifth pin 20 shown in FIG. 2, for example, by welding. The third pin 18, the fourth pin 19, and the fifth pin 20 protrude from the mounting surface 51A of the base plate 51, respectively.

  The third pin 18 is disposed behind the engagement member 12. The fourth pin 19 is arranged in front of the lock member 13. The fifth pin 20 is arranged behind the lock member 13. In FIG. 2, the holding plate 22 is not shown.

[1-2. motion]
Hereinafter, the operation of the walk-in mechanism 10 will be described with reference to FIGS. 5A to 5D.
FIG. 5A shows a locked state in which the walk-in mechanism 10 is locked. When the lock member 13 is swung by a wire operation from the locked state, as shown in FIG. 5B, the lock member 13 swings forward and is displaced from the locked position to the unlocked position.

  If the lock member 13 continues to swing as it is, as shown in FIG. 5C, the engagement member 12 swings forward toward the non-engagement position with the swing of the lock member 13. Thereafter, as shown in FIG. 5D, the engagement member 12 is displaced to the non-engagement position, so that the tilting member 11 is in a released state in which it can swing with respect to the base plate 51. In this released state, by swinging the back frame 5, the seat back 3 can be moved forward.

  In the released state, the lock member 13 is restored to the lock position by the elastic force, so that the engagement member 12 is pushed back to the engagement position by the lock member 13. As a result, the walk-in mechanism 10 shifts to the locked state.

[1-3. effect]
According to the embodiment described in detail above, the following effects can be obtained.
(1a) The tilting member 11 and the base plate 51 are held in the sheet width direction by the first flange portion 14B and the second flange portion 14C of the support member 14. Therefore, when the load due to the seat belt 8 is applied to the base plate 51, the tilting member 11 can be prevented from shifting in the seat width direction.

  (1b) Since the first pin 16 is held by the bush 15 protruding from the base plate 51, the first pin 16 receives a force applied to the first pin 16 with a larger area than when the first pin 16 is directly supported by the base plate 51. Can be. As a result, when the load due to the seat belt 8 is applied to the base plate 51, the inclination of the axis of the first pin 16 can be suppressed.

  (1c) Since the bush 15 penetrates the right side frame 52A in the sheet width direction, even when a force large enough to displace the bush 15 is applied to the first pin 16, the displacement of the bush 15 is not changed. Regulated by Therefore, the inclination of the axis of the first pin 16 can be suppressed.

  (1d) The force applied to the first pin 16 can be released to the base plate 51 by the bush flange 15B of the bush 15, so that the axis of the first pin 16 can be more reliably prevented from tilting.

[2. Other Embodiments]
As described above, the embodiments of the present disclosure have been described, but it is needless to say that the present disclosure is not limited to the above-described embodiments, and can take various forms.

  (2a) In the vehicle seat 1 of the above embodiment, the walk-in mechanism 10 may have only one of the support member 14 and the bush 15. That is, the walk-in mechanism having the support member 14 does not necessarily have to have the bush 15. Further, the walk-in mechanism having the bush 15 does not necessarily have to have the support member 14.

  (2b) In the vehicle seat 1 of the above embodiment, the support member 14 may be formed of a single component. For example, the second flange 14C may be formed by caulking the main body 14A.

  (2c) In the vehicle seat 1 of the above embodiment, the bush 15 does not necessarily have to have the bush flange 15B. The bush 15 does not necessarily have to penetrate the right side frame 52A or the left side frame 52B.

  (2d) In the vehicle seat 1 of the above embodiment, the bush 15 may be integrated with the base plate 51. For example, the bush 15 may be formed by processing a plate material forming the base plate 51.

  (2e) The vehicle seat 1 of the above embodiment can be applied to a seat used for a car other than a passenger car and a seat used for a vehicle other than a car, for example, a railcar, a ship, an aircraft, and the like.

  (2f) The functions of one component in the above embodiment may be distributed as a plurality of components, or the functions of a plurality of components may be integrated into one component. Further, a part of the configuration of the above embodiment may be omitted. Further, at least a part of the configuration of the above-described embodiment may be added to or replaced with the configuration of another above-described embodiment. Note that all aspects included in the technical idea specified by the language described in the claims are embodiments of the present disclosure.

1 ... Vehicle seat, 2 ... Seat cushion, 3 ... Seat back,
4: Cushion frame, 5: Back frame, 6, 7: Recliner,
6A: connecting rod, 8: seat belt, 8A: take-out port, 10: walk-in mechanism,
11 tilting member, 11A receiving portion, 12 engaging member, 12A engaging portion,
12B: sliding portion, 13: locking member, 13A: cam portion, 14: supporting member,
14A: body, 14B: first flange, 14C: second flange, 15: bush,
15A: bush body, 15B: bush flange, 16: first pin, 16A: enlarged diameter portion,
17 ... second pin, 18 ... third pin, 19 ... fourth pin, 20 ... fifth pin,
21: wire bracket, 22: holding plate, 51: base plate,
51A: mounting surface, 52A, 52B: side frame.

Claims (5)

Seat cushion,
A seat back that can swing in the seat front-rear direction with respect to the seat cushion,
A back frame supporting the seat back,
At least one seat belt configured to be stretched toward the seat cushion while traversing the seat back in a seat width direction from a shoulder of the seat back;
A walk-in mechanism for moving the back frame forward,
With
The back frame has a base plate extending vertically.
The walk-in mechanism,
A plate-shaped tilting member that transmits a swinging force to swing the back frame about an axis parallel to a seat width direction to the back frame,
A plate-shaped engaging member connected to the base plate and swingable between an engaging position for engaging with the tilting member and a non-engaging position in which the engagement with the tilting member is released;
A plate-like lock member that can swing between a lock position that locks the engagement member at the engagement position and a non-lock position that does not lock the engagement member;
A support member for swingably supporting the tilting member with respect to the base plate,
Has,
The vehicle seat, wherein the support member has a first flange portion and a second flange portion sandwiching the tilting member and the base plate in a seat width direction. Seat cushion,
A seat back that can swing in the seat front-rear direction with respect to the seat cushion,
A back frame supporting the seat back,
At least one seat belt configured to be stretched toward the seat cushion while traversing the seat back in a seat width direction from a shoulder of the seat back;
A walk-in mechanism for moving the back frame forward,
With
The back frame has a base plate extending vertically.
The walk-in mechanism,
A plate-shaped tilting member that transmits a swinging power to swing the back frame about an axis parallel to a seat width direction to the back frame,
A plate-like engaging member that is connected to the base plate and that can swing between an engaging position that engages with the tilting member and a non-engagement position where the engagement with the tilting member is released,
A plate-like lock member that can swing between a lock position that locks the engagement member at the engagement position and a non-lock position that does not lock the engagement member,
A pin for swingably supporting the lock member with respect to the base plate;
A bush that rotatably supports the pin,
Has,
The vehicle seat, wherein the bush protrudes from a surface of the base plate opposite to the lock member. The vehicle seat according to claim 2,
The walk-in mechanism further includes a support member for swingably supporting the tilting member with respect to the base plate,
The vehicle seat, wherein the support member has a first flange portion and a second flange portion sandwiching the tilting member and the base plate in a seat width direction. The vehicle seat according to claim 2 or claim 3,
The back frame has a cylindrical side frame to which the base plate is fixed,
The vehicle seat, wherein the bush penetrates the side frame in a seat width direction. The vehicle seat according to any one of claims 2 to 4, wherein:
The vehicle bush, wherein the bush has a bush flange disposed between the base plate and the lock member.