JP2018020670A - Vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vehicle seat having a panel type seat back frame and including a lever bracket fixing structure.SOLUTION: A lever bracket 9 is fixed to a seat back frame 1 through a first fixing part 11 to a third fixing part 13. Thus, the lever bracket 9 can disperse operational force of an operation lever 20 to at least three portions. Therefore, a vehicle seat which achieves sufficient rigidity against the operational force is obtained.SELECTED DRAWING: Figure 2

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 has a “walk-in slide function” and a “walk-in mechanism” for realizing the function. The function is “a function that enables the seat cushion to slide in the front-rear direction of the seat in conjunction with the operation of the seat back lying down on the front side of the seat”. An operation lever for operating the walk-in mechanism is provided on the upper end side of the seat back.

JP 2006-341700 A

  In a vehicle seat in which an operation lever is provided on the upper end side of the seat back, a lever bracket is fixed to one end side in the seat width direction on the upper end side of the seat back frame. The lever bracket is a bracket that receives an operation force acting on the operation lever.

  The seat back frame is a portal-shaped ramen structure constituting the seat back. 2. Description of the Related Art A recent seat back frame (hereinafter referred to as a panel-type seat back frame) has a portal-shaped frame structure composed of a pair of side frame portions, a panel-shaped upper panel portion, and the like.

  In the conventional seat back frame (hereinafter referred to as a pipe type seat back frame), a pair of side frame portions and a pipe-shaped upper pipe portion constitute a portal-shaped frame structure. Incidentally, the “ramen structure” refers to a structure in which a bending stress that opposes a bending moment is generated at a connection portion between the members.

  The operating force of the operating lever acts on the lever bracket. However, since the panel type seat back frame and the pipe type seat back frame are different in structure, it is difficult to make the fixing structure of the lever bracket the same as that of the pipe type seat back frame.

  Therefore, the present application provides a vehicle seat having a lever bracket in a vehicle seat having a panel-type seat back frame.

  In this application, it is a seat back frame (1) which comprises a seat back, Comprising: A pair of side frame part (3, 5) mutually opposingly arrange | positioned in a seat width direction and extended in a substantially up-down direction, and it extends in a seat width direction A seat back frame (1) having a panel-like upper panel portion (7) for connecting the upper end sides of the pair of side frame portions (3, 5), and an operating lever (20) provided on the upper end side of the seat back A lever bracket (9) fixed to the seat back frame (1) via at least the first fixing part (11), the second fixing part (12) and the third fixing part (13), and an operating lever A lever bracket (9) that receives an operating force acting on (20), and the first fixing portion (11) and the second fixing portion (12) are seats on the upper end side of the seat back frame (1). The third fixing portion (13) is provided at one end in the width direction, and the third fixing portion (13) is the other end in the sheet width direction from the first fixing portion (11) and the second fixing portion (12) of the upper panel portion (7). On the side.

  For this reason, the lever bracket (9) according to the present application can disperse the operating force in at least three locations. Therefore, in this application, the vehicle seat which can exhibit sufficient rigidity with respect to the operating force can be obtained.

The present application may adopt the following configuration.
For example, of the pair of side frame portions, the side frame portion disposed on one end side in the seat width direction is defined as a first side frame portion (3), and the side frame portion disposed on the other end side in the seat width direction is defined as a second side frame portion. When it is set as a side frame part (5), the 1st connection part (A) which connects a 1st side frame part (3) and an upper panel part (7), and a 2nd side frame part (5) and an upper panel part (7) and a second connecting portion (B). The first fixing portion (11) is provided on the first side frame portion (3), and the second fixing portion (12). Is provided at one end of the upper panel portion (7) in the sheet width direction.

  Thereby, the lever bracket (9) has a structure fixed to the seat back frame (1) so as to straddle the first side frame portion (3) and the upper panel portion (7). Therefore, since the lever bracket (9) functions as a reinforcing member, the connection strength between the first side frame portion (3) and the upper panel portion (7) can be increased, and the lever bracket (9) can be firmly seated. It can be fixed to the back frame (1).

  The upper panel portion (7) has a panel shape having a first surface portion (7A) substantially orthogonal to the front-rear direction of the seat and a second surface portion (7B, 7C) substantially orthogonal to the vertical direction. A pair of support brackets (8A, 8B) fixed to (7) and supporting the headrest and spaced apart in the seat width direction, and a pair of support brackets configured in a cylindrical shape extending substantially in the vertical direction ( 8A, 8B), and the third fixing portion (13) is preferably located between the pair of support brackets (8A, 8B) in the first surface portion (7A). Thereby, a 3rd fixing | fixed part (13) can be fixed to a 1st surface part (7A) by fixing methods, such as welding.

  The third fixing portion (13) includes a first extending portion (13A) extending from the lever bracket (9) toward the first surface portion (7A), and a leg portion (13B) fixed to the first surface portion (7A). The first extending portion (13A) has a substantially plate-like plate-like portion (13C), a concave or convex first bead portion (13D) provided on the plate-like portion (13C), and a plate-like shape A flange portion (13E) provided at an end of the portion (13C) and projecting in a direction substantially perpendicular to the plate-like portion (13C); and the first bead portion (13D) is a lever bracket (13D). 9) It is desirable that the flange portion (13E) is provided on the leg portion (13B) side. Thereby, since the rigidity of a 3rd fixing | fixed part (13) can be improved, a lever bracket (9) can be firmly fixed to a seat back frame (1).

  The first bead portion (13D) is provided in a range from the lever bracket (9) to a position corresponding to the support bracket (8A), and the flange portion (13E) is at least a position corresponding to the support bracket (8A). It is desirable to be provided in a range from the side to the leg (13B) side. Thereby, the rigidity of the 3rd fixed part (13) can be improved, avoiding that a 1st bead part (13D) and a support bracket (8A) interfere.

  At least one of the first fixing part (11) and the second fixing part (12) has a second extending part (11A, 12A) provided with a concave or convex second bead part (11B, 12B). It is desirable to have. Thereby, the rigidity of at least one of the first fixing part (11) and the second fixing part (12) can be increased.

  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 an external perspective view of a seat back frame 1 according to an embodiment of the present invention. 1 is an external perspective view of a seat back frame 1 according to an embodiment of the present invention. 1 is an external perspective view of a seat back frame 1 according to an embodiment of the present invention. 1 is an external perspective view of a seat back frame 1 according to an embodiment of the present invention. A is a rear view of the seat back frame 1 according to the embodiment of the present invention. B is a top view of the seat back frame 1 according to the embodiment of the present invention. C is a front view of the seat back frame 1 according to the embodiment of the present invention. It is a front view of the lever bracket 9 which concerns on embodiment of this invention. FIG. 7 is a top view of FIG. 6. FIG. 7 is a right side view of FIG. 6. A is a top perspective view of the lever bracket 9 according to an embodiment of the present invention. B is a front perspective view of the lever bracket 9 according to the embodiment of the present 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 the present embodiment, the vehicle seat according to the present invention is applied to an entrance-side second-row seat of a minivan having a three-row seat, or a passenger-side front seat for a 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 seat back frame 1 of a vehicle seat according to the present embodiment is a panel type seat back frame configured by a portal-shaped frame structure. The seat back frame 1 constitutes a seat back of a vehicle seat.

  The seat back is a backrest portion that supports the back of the seated person. The seat back frame 1 is covered with a cushion pad portion (not shown) and a skin portion (not shown).

  The cushion pad portion is a member for absorbing impact force. The cushion pad portion is made of a material that absorbs impact force while being deformed, such as urethane foam. The skin portion is a member that covers the cushion pad portion. The skin part is made of, for example, leather or synthetic leather.

  The seat back frame 1 includes a pair of side frame portions 3 and 5 and an upper panel portion 7. The pair of side frame portions 3 and 5 are frames that extend substantially in the vertical direction and are disposed to face each other in the seat width direction. In the present embodiment, the seat width direction coincides with the left-right direction of the vehicle.

  Hereinafter, the side frame disposed on one end in the seat width direction (the left end in the present embodiment) of the pair of side frame portions 3 and 5 is referred to as a first side frame portion 3. Of the pair of side frame portions 3 and 5, the side frame disposed on the other end in the seat width direction (right end in the present embodiment) is referred to as a second side frame portion 5.

  The first side frame part 3 and the second side frame part 5 are substantially symmetrical with each other in the seat width direction, and have an open cross-sectional shape in which a cross-sectional shape orthogonal to the extending direction is substantially C-shaped. It is a panel member.

  Specifically, as shown in FIGS. 1 and 2, each of the pair of side frame portions 3 and 5 includes side surface portions 3A and 5A, flange portions 3B, 3C, 5B, and 5C. The side surface portions 3A and 5A constitute a first surface portion that is substantially orthogonal to the sheet width direction.

  The flange portions 3B and 3C extend from the both ends in the width direction of the side surface portion 3A to the second side frame portion 5 side, and wall-like protrusions extend along the extending direction of the first side frame portion 3 at the end portions. Article. The width direction of the side surface portions 3A and 5A coincides with the front-rear direction of the seat.

  The flange portions 5B and 5C extend from both ends in the width direction of the side surface portion 5A to the first side frame portion 3 side, and at the end portions, wall-like protrusions extend along the extending direction of the second side frame portion 5. Article.

  The extension dimensions of the flange portions 3B and 5B provided at the rear end in the front-rear direction of the seat are larger than the extension dimensions of the flange portions 3C and 5C provided at the front end in the front-rear direction of the seat. The side surface portion 3A and the flange portions 3B and 3C are integrally formed products formed of metal plates. Similarly, the side surface portion 5A and the flange portions 5B and 5C are integrally formed products formed of metal plates.

  The upper panel portion 7 extends in the seat width direction and connects the upper end side of the first side frame portion 3 and the upper end side of the second side frame portion 5. The upper panel portion 7 is a panel-shaped frame having an open cross-sectional shape in which a cross-sectional shape orthogonal to the extending direction is formed in a substantially C shape.

  That is, as shown in FIG. 3, the upper panel portion 7 includes a strip-shaped first surface portion 7 </ b> A that is substantially orthogonal to the seat longitudinal direction and a pair of second surface portions 7 </ b> B and 7 </ b> C that are approximately orthogonal to the vertical direction. have.

  A through hole 7D penetrating in the front-rear direction of the seat is provided at the center in the extending direction of the first surface portion 7A. The second surface portion 7B is a strip-like protrusion that extends toward the seat rear side at the upper end of the first surface portion 7A and extends in the sheet width direction.

  The second surface portion 7C is a strip-like protrusion that extends toward the rear side of the sheet at the lower end of the first surface portion 7A and extends in the sheet width direction. Note that the first surface portion 7A and the pair of second surface portions 7B and 7C are integrally formed products formed of metal plates.

  One end in the extending direction of the upper panel portion 7 is connected and fixed to the upper end of the first side frame portion 3 by a fixing method such as welding. The other end in the extending direction of the upper panel portion 7 is connected and fixed to the upper end of the second side frame portion 5 by a fixing method such as welding.

  The first side frame portion 3 and the upper panel portion 7 are connected and fixed at the first connecting portion A, and the second side frame portion 5 and the upper panel portion 7 are connected and fixed at the second connecting portion B. Has been.

  Therefore, the seat back frame 1 according to the present embodiment can counter the bending moment at the first connecting portion A and the second connecting portion B which are connecting portions between the upper panel portion 7 and the pair of side frame portions 3 and 5. A portal-shaped ramen structure is formed.

  A pair of support brackets 8A and 8B are fixed to the upper panel portion 7. The pair of support brackets 8A and 8B are cylindrical members (in the present embodiment, a rectangular tube shape) for supporting a headrest (not shown). The headrest is a member for supporting the head of the seated person.

  Each of the support brackets 8A and 8B extends substantially in the vertical direction while being spaced apart in the seat width direction. The support brackets 8A and 8B according to the present embodiment are welded and fixed to the pair of second surface portions 7B and 7C in a state of penetrating the second surface portion 7B in the vertical direction.

2. 2. Lever Bracket Fixing Structure 2.1 Overview of Fixing Structure As shown in FIG. 3, the lever bracket 9 Is provided. The lever bracket 9 supports the operation lever 20 and receives an operation force acting on the operation lever 20. The operation lever 20 is an operation unit that is manually operated by a passenger.

  The operation lever 20 according to the present embodiment is an operation unit for operating the above “walk-in mechanism” (not shown), and is arranged on one end side in the seat width direction of the upper end side of the seat back. Established. The operation of the operation lever 20 is transmitted to the walk-in mechanism via an operation cable (not shown) such as a control cable.

  As shown in FIG. 4, the lever bracket 9 is assembled to one end side in the seat width direction of the seat back side upper end side of the seat back frame 1. Specifically, as shown in FIGS. 5A to 5C, the lever bracket 9 is fixed to the seat back frame 1 by welding or the like via the first fixing portion 11, the second fixing portion 12, and the third fixing portion 13. It is fixed by.

  The first fixing portion 11 and the second fixing portion 12 are fixed to one end side in the seat width direction of the upper end side of the seat back frame 1. The third fixing portion 13 is fixed to the other end side in the sheet width direction from the first fixing portion 11 and the second fixing portion 12 in the upper panel portion 7.

  Specifically, the first fixing part 11 is fixed to the upper end side of the first side frame part 3. The second fixed portion 12 is fixed to the upper surface of the upper panel portion 7 in one end in the sheet width direction, that is, one end of the second surface portion 7B in the sheet width direction. As shown in FIG. 3, the third fixing portion 13 is fixed between the pair of support brackets 8A and 8B in the first surface portion 7A.

2.2 Shape of Each Fixed Part The first fixed part 11 to the third fixed part 13 are provided at the end of the plate part 9A as shown in FIGS. The plate portion 9 </ b> A is a plate-like portion for supporting the operation lever 20.

<First fixing part>
As shown in FIG. 7, the first fixing portion 11 includes an extending portion 11A. The extending portion 11A is a portion extending from the end portion side of the plate portion 9A formed in a substantially rectangular plate shape to the seat back frame 1 side. The extending direction front end side of the extending part 11 </ b> A is welded and fixed to the upper end side of the first side frame part 3.

  The extending portion 11A is provided with a concave or convex bead portion 11B as shown in FIG. 9B. Note that the extending portion 11A and the bead portion 11B are integrally formed products integrally formed with the plate portion 9A by plastic processing such as press processing.

<Second fixing portion 12>
As shown in FIG. 8, the second fixing portion 12 includes an extending portion 12A. As shown in FIG. 1, the extending portion 12 </ b> A is a portion that curves in a substantially U shape from the end portion side of the plate portion 9 </ b> A and extends to the seat back frame 1 side.

  That is, the extending portion 12A is provided on the upper end side of the plate portion 9A, and the upper end of the plate portion 9A provided with the extending portion 12A has the same height as the upper end edge of the seat back frame 1 or It is in a position higher than the upper edge.

  For this reason, the extending portion 12A according to the present embodiment is curved in a substantially U shape from the end portion side of the plate portion 9A and extends to the seat back frame 1 side. The “upper end side of the plate portion 9 </ b> A” refers to the upper end side of the plate portion 9 </ b> A in a state where the lever bracket 9 is fixed to the seat back frame 1.

  And the extending direction front end side of the extending part 12A is welded and fixed to the second surface part 7B of the upper panel part 7. As shown in FIG. 9A, the extending portion 12A is provided with a concave or convex bead portion 12B. The extending part 12A and the bead part 12B are integrally formed products integrally formed with the plate part 9A by plastic working such as press working.

<Third fixing part>
The 3rd fixing | fixed part 13 has 13 A of extending parts and the leg part 13B, as shown in FIG. As shown in FIG. 3, the extending portion 13 </ b> A is a portion that extends from the lever bracket 9, that is, the plate portion 9 </ b> A to the first surface portion 7 </ b> A side of the upper panel portion 7.

  The leg part 13B is a part fixed to the first surface part 7A by welding. Note that the leg portion 13B is a portion that extends in the direction parallel to the first surface portion 7A from the distal end of the extending portion 13A in the extending direction. That is, the third fixing portion 13 has an approximately L-shape in which the extending portion 13A and the leg portion 13B are substantially orthogonal to each other.

  As shown in FIG. 8, the extending portion 13A includes a plate-like portion 13C, a bead portion 13D, a pair of flange portions 13E, and the like. The plate-like portion 13C is a substantially strip-like portion extending from the end portion side of the plate portion 9A to the first surface portion 7B side.

  The bead portion 13D is a concave or convex curved portion provided in the plate-like portion 13C. The pair of flange portions 13E are wall-like ridges that are provided at the end in the width direction of the plate-like portion 13C and protrude in a direction substantially orthogonal to the plate-like portion 13C.

  The width direction of the plate-like portion 13C refers to the direction in which the plate-like portion 13C extends and the direction orthogonal to the plate surface of the plate-like portion 13C. The width direction of the plate-like portion 13C according to the present embodiment coincides with the extending direction of the support bracket 8A, that is, the vertical direction (see FIG. 3).

  The bead portion 13D is provided on the lever bracket 9 side of the plate-like portion 13C, that is, on the plate portion 9A side of the plate-like portion 13C. The pair of flange portions 13E is provided on the leg portion 13B side of the plate-like portion 13C.

  In other words, the bead portion 13D is provided in a range from the plate portion 9A to a position corresponding to the support bracket 8A, as shown in FIG. Therefore, in the extending direction of the plate-like portion 13C, the bead portion 13D is located at a position shifted to the seat rear side with respect to the support bracket 8A.

  The pair of flange portions 13E are provided at least in a range from the position corresponding to the support bracket 8A to the leg portion 13B side. That is, if a pair of flange portions 13E are projected on a virtual plane orthogonal to the seat width direction, a part of the projected flange portions 13E overlaps with the support bracket 8A projected on the virtual plane.

  In the present embodiment, flange portions 13E are also provided at both ends in the width direction of the leg portion 13B. The extending portion 13A, that is, the plate-like portion 13C, the bead portion 13D, the pair of flange portions 13E, and the leg portion 13B are integrally formed products integrally formed with the plate portion 9A by plastic working such as press working. .

3. Features of Vehicle Seat According to this Embodiment The lever bracket 9 according to this embodiment is fixed to the seat back frame 1 via the first fixing portion 11 to the third fixing portion 13. For this reason, the lever bracket 9 according to the present embodiment can disperse the operating force of the operating lever 20 in at least three locations. Accordingly, it is possible to obtain a vehicle seat that can exhibit sufficient rigidity with respect to the operating force.

  In the present embodiment, as shown in FIG. 3, the plate surfaces of the extending portions 11 </ b> A to 13 </ b> A of the first fixing portion 11 to the third fixing portion 13 intersect each other. The “direction of the plate surface” means a direction orthogonal to the plate surface.

  As a result, the lever bracket 9 according to the present embodiment can counter any of the moment around the seat longitudinal direction, the moment around the seat width direction, and the moment around the vertical direction (vertical direction). Therefore, it is possible to obtain a vehicle seat that can exhibit sufficient rigidity with respect to the operating force.

  The seat back frame 1 according to the present embodiment is configured by connecting the first side frame portion 3 and the upper panel portion 7 by a fixing method such as welding. The first fixing portion 11 is fixed to the first side frame portion 3, and the second fixing portion 12 is fixed to one end side of the upper panel portion 7 in the sheet width direction.

  That is, the lever bracket 9 has a structure that is fixed to the seat back frame 1 so as to straddle the first side frame portion 3 and the upper panel portion 7. Accordingly, since the lever bracket 9 functions as a reinforcing member, the connection strength between the first side frame portion 3 and the upper panel portion 7 can be increased, and the lever bracket 9 can be firmly fixed to the seat back frame 1.

  Since the third fixing portion 13 is located between the pair of support brackets 8A and 8B in the first surface portion 7A, the third fixing portion 13 can be easily fixed to the first surface portion 7A by a fixing method such as welding. It can be done.

  Since the plate portion 9A exists, it is very difficult to weld the third fixing portion 13 to the first surface portion 7A on the one end side in the seat width direction from the support bracket 8A located on the one end side in the seat width direction. .

  Since the 1st fixing part 11 and the 2nd fixing part 12 have extension parts 11A and 12A provided with bead parts 11B and 12B, the rigidity of the 1st fixing part 11 and the 2nd fixing part 12 is raised. be able to.

  A plate-like portion 13C constituting the extending portion 13A of the third fixing portion 13 is provided with a bead portion 13D and a pair of flange portions 13E. Thereby, since the rigidity of the 3rd fixing | fixed part 13 can be improved, the lever bracket 9 can be fixed to the seat back frame 1 firmly.

  The bead portion 13D is provided in a range from the lever bracket 9 to a position corresponding to the support bracket 8A, and the flange portion 13E is provided in a range from at least a position corresponding to the support bracket 8A to the leg portion 13B side. It has been. Thereby, the rigidity of the 3rd fixed part 13 can be improved, avoiding that bead part 13D and support bracket 8A interfere.

(Other embodiments)
The seat back frame 1 according to the above-described embodiment is a portal-shaped frame structure in which the first side frame portion 3 and the second side frame portion 5 are connected to the upper panel portion 7 by welding or the like. It was.

  However, the present invention is not limited to this. That is, for example, the first side frame part 3, the second side frame part 5, and the upper panel part 7 may be integrally formed by press molding or die casting.

  In the above-described embodiment, the lever bracket 9 is fixed to the seat back frame 1 at the three positions of the first fixing portion 11 to the third fixing portion 13. However, the present invention is not limited to this. That is, for example, the lever bracket 9 may be fixed to the seat back frame 1 by four or more fixing portions.

  In the above-described embodiment, welding is mainly used as a fixing method. However, the present invention is not limited to this. That is, for example, rivet fixing, fixing with a fastener such as a bolt, or a bonding technique such as adhesive or brazing may be used.

  The operation lever 20 according to the above-described embodiment is the operation lever 20 for operating the walk-in mechanism. However, the present invention is not limited to this, and other operation levers 20 may be used.

  The 3rd fixing | fixed part 13 which concerns on the above-mentioned embodiment was located between a pair of support brackets 8A and 8B. However, the present invention is not limited to this. The support brackets 8A and 8B are not limited to a rectangular tube shape, and may be a cylindrical shape.

  Each extension part 11A-13A which concerns on the above-mentioned embodiment was provided with bead part 11B, 12B, 13D. However, the present invention is not limited to this, and a configuration in which the bead portions 11B, 12B, and 13D are not provided may be employed.

  The flange portion 13E according to the above-described embodiment is provided in a range from the position corresponding to the support bracket 8A to the leg portion 13B side. However, the present invention is not limited to this.

  That is, for example, (a) a configuration in which the flange portion 13E is eliminated, (b) a configuration in which the flange portion 13E is provided in the entire extending direction of the plate-like portion 13C, or (c) only one end side in the width direction of the plate-like portion 13C. The structure etc. which provided the flange part 13E may be sufficient.

  The pair of side frame portions 3 and 5 according to the above-described embodiment has a panel shape having side surface portions 3A and 5A and flange portions 3B, 3C, 5B, and 5C. However, the present invention is not limited to this. That is, for example, a pair of side frame portions 3 and 5 may be configured by a truss-structured pipe.

The vehicle seat according to the above-described embodiment was for an automobile. However, the application of the present invention is not limited to this, and can be applied to vehicles such as railway vehicles, ships, and aircraft.
Further, 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 ... Seat back frame 3 ... 1st side frame part 3A ... Side surface part 3B ... Flange part 3C ... Flange part 5 ... 2nd side frame part 5B ... Flange part 5A ... Side surface part 7 ... Upper panel part 7A ... 1st surface part 7B 2nd surface portion 7D ... Through hole 7C ... 2nd surface portion 8A ... Support bracket 9 ... Lever bracket 9A ... Plate portion 11 ... First fixing portion 11A ... Extension portion 11B ... Bead portion 12 ... Second fixing portion 12A ... Extension Part 12B ... Bead part 13 ... Third fixing part 13A ... Extension part 13B ... Leg part 13C ... Plate-like part 13D ... Bead part 13E ... Flange part 20 ... Control lever

Claims (6)

In a vehicle seat having a seat back that supports the back of the seated person, and an operation lever provided on one end side in the seat width direction of the upper end side of the seat back,
A seat back frame constituting the seat back, wherein the pair of side frame portions are arranged to face each other in the seat width direction and extend in a substantially vertical direction, and the upper end sides of the pair of side frame portions in the seat width direction. A seat back frame having a panel-like upper panel portion for connecting
A lever bracket that receives an operation force acting on the operation lever, and includes a lever bracket fixed to the seat back frame via at least a first fixing portion, a second fixing portion, and a third fixing portion;
The first fixing part and the second fixing part are provided on one end side in the seat width direction of the upper end side of the seat back frame,
Further, the third fixing portion is a vehicle seat provided on the other end side in the seat width direction from the first fixing portion and the second fixing portion in the upper panel portion. Of the pair of side frame portions, the side frame portion disposed on one end side in the seat width direction is referred to as a first side frame portion, and the side frame portion disposed on the other end side in the seat width direction is referred to as a second side frame portion. When
A first connecting part that connects the first side frame part and the upper panel part; and a second connecting part that connects the second side frame part and the upper panel part.
2. The vehicle seat according to claim 1, wherein the first fixing portion is provided on the first side frame portion, and the second fixing portion is provided on one end side in the seat width direction of the upper panel portion. . The upper panel portion is a panel shape having a first surface portion that is substantially orthogonal to the longitudinal direction of the seat and a second surface portion that is substantially orthogonal to the vertical direction.
A pair of support brackets fixed to the upper panel portion and supporting the headrest and spaced apart in the seat width direction, comprising a pair of support brackets configured in a cylindrical shape extending substantially in the vertical direction,
Furthermore, the said 3rd fixing | fixed part is a vehicle seat of Claim 1 or 2 located between a pair of said support brackets among the said 1st surface parts. The third fixing portion has an extending portion extending from the lever bracket to the first surface portion side, and a leg portion fixed to the first surface portion,
The extending portion is provided at a substantially plate-like plate-like portion, a concave or convex bead portion provided in the plate-like portion, and an end portion of the plate-like portion, and is substantially orthogonal to the plate-like portion. It has a flange part protruding in the direction,
The vehicle seat according to claim 3, wherein the bead portion is provided on the lever bracket side, and the flange portion is provided on the leg portion side. The bead portion is provided at least in a range from the lever bracket to a position corresponding to the support bracket;
The vehicle seat according to claim 4, wherein the flange portion is provided at least in a range from a position corresponding to the support bracket to the leg portion side. When the extension part is a first extension part and the bead part is a first bead part,
At least one of the first fixing part and the second fixing part has a second extending part extending toward the seat back frame, and the second extending part has a concave or convex second bead. The vehicle seat according to claim 4 or 5, wherein a portion is provided.