CN118238703A - Seat for vehicle - Google Patents

Abstract

The invention provides a vehicle seat capable of improving strength of a headrest frame. A vehicle seat includes a headrest that includes a headrest frame (F3) that forms a skeleton. The headrest frame (F3) comprises: a main frame (70) having a pair of vertically extending column parts (71) arranged in a left-right spaced manner, a pair of upper frame parts (72) extending forward from the upper ends of the pair of column parts (71), respectively, and a pair of front frame parts (73) extending downward from the front ends of the pair of upper frame parts (72), respectively; and a plate-shaped reinforcing member (80) that is disposed between the pair of front frame sections (73) and is fixed to the pair of front frame sections (73).

Description

Seat for vehicle

Technical Field

The present invention relates to a vehicle seat including a headrest.

Background

Conventionally, as a headrest, a headrest including a skin, a cushion body formed by hardening foamable urethane injected into the skin, and stays partially inserted into the skin is known (patent document 1). In the above-described technique, the stay includes a tube having a pair of right and left linear shaft portions attached to the seat back, and the bent portion is formed by extending forward and downward from the upper end of the linear shaft portions.

[ Prior Art literature ]

[ Patent literature ]

Patent document 1 Japanese patent laid-open publication No. 2013-014255

Disclosure of Invention

[ Problem to be solved by the invention ]

Further, for the frame of the headrest, improvement in strength is desired.

Accordingly, an object of the present invention is to provide a vehicle seat in which the strength of a headrest frame can be improved.

[ Means of solving the problems ]

The vehicle seat may have the following structure: the vehicle seat includes a headrest including a headrest frame constituting a skeleton, the headrest frame including: a main frame having a pair of vertically extending column parts arranged apart from each other in a left-right direction, a pair of upper frame parts extending forward from upper ends of the pair of column parts, and a pair of front frame parts extending downward from front ends of the pair of upper frame parts; and a plate-shaped reinforcing member disposed between and fixed to the pair of front frame portions.

The strength of the headrest frame can be improved by the headrest frame including the reinforcing member.

In addition, the following structure is possible: the reinforcing member is disposed below the upper end of the upper frame portion and above the lower end of the front frame portion.

The reinforcing member is disposed below the upper end of the upper frame portion and above the lower end of the front frame portion, so that the reinforcing member can be compactly disposed.

In addition, the following structure is possible: the front surface of the reinforcing member is disposed further rearward than the front surface of the front frame portion.

By disposing the front surface of the reinforcing member further rearward than the front surface of the front frame portion, the reinforcing member can be compactly disposed so as not to protrude forward with respect to the front frame portion.

In addition, the following structure is possible: the reinforcing member has a front plate portion and a flange portion extending rearward from an edge portion of the front plate portion, the flange portion having a flange upper portion including an upper end portion of the flange portion and a flange lower portion located below the flange upper portion, the flange upper portion protruding rearward from the flange lower portion.

By providing the flange portion of the reinforcing member with the flange upper portion protruding rearward from the flange lower portion, the rigidity of the upper portion of the reinforcing member to which a load is easily applied can be improved.

In addition, the following structure is possible: the reinforcing member has a tongue portion protruding rearward from an upper end portion of the flange portion.

The reinforcing member has a tongue portion protruding rearward from the upper end portion of the flange portion, and is bent and extended downward, whereby the rigidity of the upper portion of the reinforcing member can be further improved.

In addition, the following structure is possible: the tongue portion is located at the left and right central portions of the upper end portion of the flange portion, and has a smaller left and right width than the left and right width of the upper end portion of the flange portion.

By making the width of the tongue portion in the left-right direction smaller than the width of the upper end portion of the flange portion, the rigidity of the upper portion of the reinforcing member can be improved by the tongue portion, and the reinforcing member can be made compact and lightweight.

In addition, the following structure is possible: the flange portion has a fragile portion that is located between the flange upper portion and the flange lower portion and has a shape recessed forward relative to a rear end of the flange lower portion.

The flange portion has a weakened portion between the flange upper portion and the flange lower portion, and when an impact is applied to the reinforcing member, the reinforcing member is deformable to bend in the vicinity of the weakened portion. Thereby, impact energy can be absorbed.

In addition, the following structure is possible: the front plate portion has a concave portion in a shape recessed rearward.

Since the front plate portion has the concave portion, the rigidity of the reinforcing member can be improved, and therefore the strength of the headrest frame can be further improved by the reinforcing member.

In addition, the following structure is possible: the front plate portion has a through hole penetrating in the front-rear direction at the bottom of the recess.

The through-hole of the front plate portion is formed at the bottom of the recess portion, whereby the strength of the reinforcing member is prevented from being lowered by the formation of the through-hole.

The vehicle seat may have the following structure: the seat cushion comprises a seat cushion frame forming a framework, a seat cushion pad covering the seat cushion frame, and a seat cushion skin covering the seat cushion frame and the seat cushion pad, the seat back comprises a seat back frame forming the framework, a seat back pad covering the seat back frame, and a seat back skin covering the seat back frame and the seat back pad, and the headrest comprises a headrest pad covering a part of the headrest frame and a headrest skin covering the headrest pad.

[ Effect of the invention ]

The strength of the headrest frame can be improved by the headrest frame including the reinforcing member.

Further, the reinforcing member is disposed below the upper end of the upper frame portion and above the lower end of the front frame portion, so that the reinforcing member can be compactly disposed.

Further, since the front surface of the reinforcing member is disposed further rearward than the front surface of the front frame portion, the reinforcing member can be compactly disposed so as not to protrude forward with respect to the front frame portion.

Further, the flange portion of the reinforcing member has a flange upper portion protruding rearward from the flange lower portion, whereby the rigidity of the upper portion of the reinforcing member to which a load is easily applied can be improved.

Further, the reinforcing member has a tongue portion protruding rearward from the upper end portion of the flange portion, and is bent and extends downward, whereby the rigidity of the upper portion of the reinforcing member can be further improved.

Further, since the width of the tongue portion in the left and right directions is smaller than the width of the upper end portion of the flange portion in the left and right directions, the rigidity of the upper portion of the reinforcing member can be improved by the tongue portion, and the reinforcing member can be made compact and lightweight.

In addition, since the flange portion has the weakened portion between the flange upper portion and the flange lower portion, the reinforcing member can be deformed so as to be bent in the vicinity of the weakened portion when an impact is applied to the reinforcing member. Thereby, impact energy can be absorbed.

Further, since the front plate portion has the concave portion, the rigidity of the reinforcing member can be improved, and therefore the strength of the headrest frame can be further improved by the reinforcing member.

In addition, since the through hole of the front plate portion is formed at the bottom of the recess portion, the strength of the reinforcing member can be suppressed from being lowered by forming the through hole.

Drawings

Fig. 1 is a perspective view of a vehicle seat according to an embodiment.

Fig. 2 is a perspective view of a seat cushion frame and a seat back frame.

Fig. 3 is a perspective view of the headrest frame.

Fig. 4 (a) is a perspective view of the reinforcing member viewed from the front, and fig. 4 (b) is a perspective view of the reinforcing member viewed from the rear.

Fig. 5 is a side view of the reinforcing member.

Fig. 6 is a plan view of the reinforcing member.

Fig. 7 is a front view of the headrest frame.

Fig. 8 is a side view of the headrest frame.

[ Description of symbols ]

70: Main frame

71: Pillar portion

72: Upper frame part

73: Front frame part

73F: front surface

80: Reinforcing member

80F: front surface

81: Front plate part

81A: concave part

81B: through hole

82: Flange part

82A: upper flange part

83: Tongue portion

821: Flange upper part

822: Lower part of the flange

823: Frangible portion

C1: cushion cover of seat

C2: seat back skin

And C3: headrest skin

E1: upper end

E2: lower end of

F1: seat cushion frame

F2: seat back frame

F3: headrest frame

P1: cushion pad for seat

P2: seat back cushion

P3: headrest cushion

S: vehicle seat

S1: cushion pad for chair

S2: chair backrest

S3: headrest for head

Detailed Description

Next, an embodiment of the vehicle seat will be described. In this specification, the front-back, left-right, and up-down correspond to the front-back, left-right, and up-down viewed from a person sitting in the seat (sitting person).

As shown in fig. 1, the vehicle seat according to the embodiment is configured to be mounted on a vehicle, specifically, a vehicle seat S of an automobile, which is an example of a vehicle. The vehicle seat S is a rear seat of an automobile, and includes a seat cushion S1, a seat back S2, and a headrest S3.

As shown in fig. 1 and 2, the seat cushion S1 includes a seat cushion frame F1 constituting a skeleton, a seat cushion pad P1 covering the seat cushion frame F1, and a seat cushion cover C1 covering the seat cushion frame F1 and the seat cushion pad P1. The seat cushion S1 is configured by covering the seat cushion frame F1 with the seat cushion pad P1 and the seat cushion cover C1.

The seat cushion frame F1 includes, for example, a metal tube. The seat cushion frame F1 has: a left and right seat cushion side frame 11 and a seat cushion side frame 12, which are disposed opposite to each other with a space therebetween; a front frame 13 that connects front end portions of the left and right seat cushion side frames 11 and 12 to each other; and a rear frame 14 that connects rear end portions of the left and right seat cushion side frames 11, 12 to each other. The seat cushion pad P1 includes urethane foam or the like, and the seat cushion cover C1 includes cloth, leather or the like.

The seat back S2 includes a seat back frame F2 constituting a skeleton, a seat back cushion P2 covering the seat back frame F2, and a seat back skin C2 covering the seat back frame F2 and the seat back cushion P2. The seat back S2 is configured by covering the seat back frame F2 with a seat back cushion P2 and a seat back skin C2.

The seat back frame F2 includes a seat back main frame 20, a first cross member 31, a second cross member 32, and a tray frame 40.

The seat back main frame 20 includes, for example, a metal pipe. The seat back main frame 20 has: an upper frame portion 21; a lower frame portion 22 disposed opposite to the upper frame portion 21 with a gap therebetween; a left frame portion 23 connecting left end portions of the upper frame portion 21 and the lower frame portion 22 to each other; and a right frame portion 24 connecting right end portions of the upper frame portion 21 and the lower frame portion 22 to each other, and disposed opposite to each other with a gap therebetween with respect to the left frame portion 23.

The first cross member 31 includes a metal pipe, and connects the upper frame portion 21 and the lower frame portion 22 at a position between the left frame portion 23 and the right frame portion 24 in the left-right direction. The second cross member 32 includes a metal pipe, and connects the upper frame portion 21 and the lower frame portion 22 at a position between the first cross member 31 and the right frame portion 24 in the left-right direction.

A pair of left and right brackets 25L and 25R for holding the headrest guide are fixed to the upper frame portion 21. The left pair of brackets 25L are fixed to the front surface of the upper frame portion 21 by welding at positions between the left frame portion 23 and the first cross member 31 in the left-right direction. In addition, the pair of brackets 25R on the right side are fixed to the front surface of the upper frame portion 21 by welding at positions between the second cross member 32 and the right frame portion 24 in the left-right direction.

The tray frame 40 is formed by metal plate processing of a metal plate, and is configured to cover the seat back main frame 20 from the rear. The tray frame 40 is fixed to the seat back main frame 20 by welding or the like. The tray frame 40 is also fixed to the first beam 31 and the second beam 32 by welding or the like.

The seat back cushion P2 includes urethane foam or the like, and the seat back skin C2 includes cloth, leather or the like.

As shown in fig. 1, the headrest S3 includes a headrest frame F3 (see fig. 3) constituting a skeleton, a headrest cushion P3 covering a part of the headrest frame F3, and a headrest skin C3 covering the headrest cushion P3.

The headrest S3 is formed by disposing a part of the headrest frame F3 in the headrest skin C3, and then injecting and curing a material of the headrest cushion P3. The headrest cushion P3 includes a foaming resin such as urethane foam, and the headrest skin C3 includes cloth, leather, or the like.

As shown in fig. 3, the headrest frame F3 includes a main frame 70 and a plate-like reinforcing member 80.

The main frame 70 is formed by bending a metal pipe, and includes a pair of stay portions 71, a pair of upper frame portions 72, a pair of front frame portions 73, and a connection frame portion 74.

The pair of stay portions 71 are portions inserted into the headrest guides held by the pair of brackets 25L or the pair of brackets 25R, and extend up and down, respectively. The pair of column portions 71 are arranged apart from each other.

The pair of upper frame portions 72 extend forward from the upper ends of the pair of pillar portions 71, respectively.

The pair of front frame portions 73 extend downward from the front ends of the pair of upper frame portions 72, respectively.

The connection frame portion 74 extends left and right, and connects lower ends of the pair of front frame portions 73 to each other.

As shown in fig. 4 (a) and 4 (b), the reinforcing member 80 is formed by bending a metal plate, and includes a front plate portion 81, a flange portion 82, and a tongue portion 83.

The front plate portion 81 has a substantially rectangular shape. The front plate 81 has a recess 81A and a through hole 81B. The concave portion 81A is a concave portion in a shape recessed rearward. In the present embodiment, the recess 81A has a long rectangular shape in the left-right direction, and is provided at a position below the central portion in the up-down direction of the front plate 81.

The through hole 81B is a substantially circular hole penetrating forward and backward. The through hole 81B is formed at the bottom of the recess 81A. In the present embodiment, two through holes 81B are formed. The two through holes 81B are arranged at the bottom of the recess 81A so as to be separated from each other. The two through holes 81B are holes for inserting jigs for supporting the reinforcing member 80 when the reinforcing member 80 is welded and fixed to the main frame 70.

The flange 82 extends rearward from the edge of the front plate 81. The flange 82 integrally has an upper flange 82A extending rearward from an upper edge of the front plate 81, a lower flange 82B extending rearward from a lower edge of the front plate 81, a left flange 82C extending rearward from a left edge of the front plate 81, and a right flange 82D extending rearward from a right edge of the front plate 81. The left flange 82C and the right flange 82D have a laterally symmetrical shape. The connection portion 84 between the front plate portion 81 and the flange portions 82 (82A to 82D) has a curved shape with rounded corners (see also fig. 5 and 6).

As shown in fig. 5, the flange 82 includes a flange upper portion 821, a flange lower portion 822, and a fragile portion 823.

The flange upper portion 821 includes an upper flange portion 82A as an upper end portion of the flange portion 82. In the present embodiment, the flange upper portion 821 includes upper flange portions 82A, upper end portions of the left flange portion 82C, and upper end portions of the right flange portion 82D (see fig. 4 (b)).

The flange lower portion 822 is located further to the lower side than the flange upper portion 821. In the present embodiment, the flange lower portion 822 includes a portion downward from the central portion in the up-down direction of the left flange portion 82C, a portion downward from the central portion in the up-down direction of the right flange portion 82D, and a lower flange portion 82B. The flange upper portion 821 protrudes more rearward than the flange lower portion 822. That is, the length of the flange upper portion 821 in the direction extending from the front plate portion 81 is longer than the length of the flange lower portion 822 in the direction extending from the front plate portion 81.

The frangible portion 823 is located between the flange upper portion 821 and the flange lower portion 822. The fragile portion 823 is a portion of the left flange portion 82C and the right flange portion 82D in a shape recessed forward relative to the rear end (see the dash-dot line) of the flange lower portion 822. The length of the fragile portion 823 in the direction extending from the front plate portion 81 is shorter than the length of the flange lower portion 822 in the direction extending from the front plate portion 81.

As shown in fig. 4 (b) and 5, the tongue 83 protrudes rearward from the upper flange 82A, is bent, and extends downward. As shown in fig. 6, the tongue portion 83 is located at a position corresponding to the left-right central portion of the upper flange portion 82A in the left-right direction. The width W83 of the tongue 83 is smaller than the width W82 of the upper flange 82A. The left and right corner portions 83A located at the front end portion of the tongue portion 83 have a rounded shape by chamfering.

As shown in fig. 7, the reinforcing member 80 is disposed between the pair of front frame portions 73 of the main frame 70. The reinforcing member 80 is fixed to the pair of front frame portions 73. Specifically, the left and right end portions of the front plate portion 81 of the reinforcing member 80 are fixed to the pair of front frame portions 73 by welding (see the welded portions W1 and W2). Although not shown, the front end portions (rear end portions) of the left and right flange portions 82C and 82D of the reinforcing member 80 are fixed to the pair of front frame portions 73 by welding at positions behind the welded portions W1 and W2.

In the present embodiment, the positions of the welded portions W1, W2 in the direction in which the front frame portion 73 extends overlap the concave portion 81A. Further, the positions of the welded portions W1 and W2 in the direction in which the front frame portion 73 extends overlap the two through holes 81B.

As shown in fig. 8, the reinforcing member 80 is disposed below the upper end E1 of the upper frame portion 72 of the main frame 70 and above the lower end E2 of the front frame portion 73. The reinforcing member 80 is disposed at a position between two chain lines shown in fig. 8 in the up-down direction. The front surface 80F of the reinforcing member 80 is disposed further rearward than the front surface 73F of the front frame 73. In other words, the reinforcing member 80 is arranged so as not to protrude further forward than the front frame portion 73.

In addition, a portion of the reinforcing member 80 downward from the fragile portion 823 is disposed further forward than the rear surface 73R of the front frame portion 73. In other words, the portion of the reinforcing member 80 downward from the fragile portion 823 is arranged so as not to protrude more rearward than the front frame portion 73. Further, a portion of the reinforcing member 80 downward from the fragile portion 823 is formed to be housed in a dimension within a width of the front frame portion 73 in the front-rear direction.

The headrest skin C3 and the headrest cushion P3 shown by virtual lines in fig. 8 cover upper end portions of a pair of stay portions 71, a pair of upper frame portions 72, a pair of front frame portions 73 and a connection frame portion 74 (see fig. 3), and a reinforcing member 80 of the main frame 70 in the headrest frame F3. The headrest S3 is attached to the seat back S2 by exposing a portion lower than the upper end portions of the pair of stay portions 71 to the outside and inserting the portion into a headrest guide held by the pair of brackets 25L or the pair of brackets 25R.

According to the vehicle seat S of the present embodiment, the strength of the headrest frame F3 can be improved by including the reinforcing member 80 in the headrest frame F3.

Further, since the reinforcing member 80 is disposed below the upper end E1 of the upper frame portion 72 and above the lower end E2 of the front frame portion 73, the reinforcing member 80 can be compactly disposed.

Further, since the front surface 80F of the reinforcing member 80 is disposed further rearward than the front surface 73F of the front frame 73, the reinforcing member 80 can be compactly disposed so as not to protrude forward with respect to the front frame 73.

Further, the flange 82 of the reinforcing member 80 has the flange upper portion 821 protruding rearward from the flange lower portion 822, whereby the rigidity of the upper portion of the reinforcing member 80 to which a load is easily applied can be improved.

Further, the reinforcing member 80 has the tongue portion 83 protruding rearward from the upper flange portion 82A, being bent, and extending downward, whereby the rigidity of the upper portion of the reinforcing member 80 can be further improved.

Further, since the width W83 of the tongue 83 in the left and right directions is smaller than the width W82 of the upper flange 82A in the left and right directions, the rigidity of the upper portion of the reinforcing member 80 can be improved by the tongue 83, and the reinforcing member 80 can be made compact and lightweight. Further, since the tongue portion 83 is small, when a part of the headrest frame F3 is disposed in the headrest skin C3 and the material of the headrest cushion P3 is injected into the headrest skin C3, the material of the headrest cushion P3 can be made to flow satisfactorily.

In addition, since the flange portion 82 has the weakened portion 823 between the flange upper portion 821 and the flange lower portion 822, the reinforcing member 80 can be deformed so as to be bent in the vicinity of the weakened portion 823 when an impact is applied to the reinforcing member 80. Thereby, impact energy can be absorbed.

Further, since the front plate portion 81 has the concave portion 81A, the rigidity of the reinforcing member 80 can be improved, and therefore the strength of the headrest frame F3 can be further improved by the reinforcing member 80.

In addition, since the through hole 81B of the front plate portion 81 is formed at the bottom of the recess 81A, a decrease in strength of the reinforcing member 80 due to the formation of the through hole 81B can be suppressed.

Further, the connection portion 84 between the front plate portion 81 and the flange portion 82 has a curved shape with rounded corners, and the tongue portion 83 has a curved portion or a corner portion 83A with rounded corners, so that damage to the headrest cushion P3 covering the headrest frame F3 can be suppressed.

In addition, the connecting portion 84 has a curved shape with rounded corners, and the tongue portion 83 has a curved portion or a corner portion 83A with rounded corners, so that when a part of the headrest frame F3 is disposed in the headrest skin C3 and the material of the headrest cushion P3 is injected into the headrest skin C3, the material of the headrest cushion P3 can be satisfactorily flowed.

Further, the portion of the reinforcing member 80 downward from the fragile portion 823 is formed to be housed in a dimension within the width of the front frame portion 73 in the front-rear direction, so that the reinforcing member 80 can be made compact and lightweight.

Further, by overlapping the positions of the welded portions W1 and W2 in the direction in which the front frame portion 73 extends with the concave portion 81A, the reinforcing member 80 can be fixed to the main frame 70 in the vicinity of the portion where the rigidity of the front plate portion 81 (reinforcing member 80) is improved. This can improve the strength of the attachment of the reinforcing member 80 to the main frame 70, and thus can further improve the strength of the headrest frame F3.

The embodiments have been described above, but the vehicle seat can be modified as appropriate as exemplified below.

In the above embodiment, the tongue portion 83 is located at a position corresponding to the left and right central portions of the upper flange portion 82A, but for example, the tongue portion may be located at a position closer to the left or right. In the above embodiment, the width W83 of the tongue 83 in the left and right directions is smaller than the width W82 of the upper flange 82A in the left and right directions, but for example, the width of the tongue in the left and right directions may be substantially the same as the width of the upper end portion of the flange. The reinforcing member may be a structure that does not include a tongue portion.

In the above embodiment, the flange 82 has the fragile portion 823, but for example, the flange may not have the fragile portion.

In the embodiment, the flange 82 has a structure in which the flange upper portion 821 and the flange lower portion 822 protrude rearward from the flange lower portion 822, but for example, the amounts of rearward protruding of the flange upper portion and the flange lower portion may be substantially the same.

In the above embodiment, the front plate 81 has a structure having two through holes 81B at the bottom of the recess 81A, but for example, the number of through holes may be one or three or more. In addition, the bottom of the recess may not be formed with a through hole.

In the above embodiment, the front plate 81 has one concave portion 81A recessed rearward, but for example, the front plate may have a plurality of concave portions. The front plate portion may have a structure in which a concave portion having a shape recessed rearward is not formed.

In the above embodiment, the front surface 80F of the reinforcing member 80 is disposed further rearward than the front surface 73F of the front frame portion 73, but for example, the reinforcing member may be disposed in a state of slightly protruding forward with respect to the front surface of the front frame portion.

In the embodiment described above, the reinforcing member 80 is disposed below the upper end E1 of the upper frame portion 72 and above the lower end E2 of the front frame portion 73, but for example, the upper end of the reinforcing member may be located slightly above the upper end of the upper frame portion. In addition, the lower end of the reinforcing member may be located slightly below the lower end of the front frame portion.

In the above embodiment, the reinforcing member 80 has a substantially box-like shape having the front plate portion 81 and a series of flange portions 82 extending rearward from the upper, lower, left and right edges of the front plate portion 81, but for example, the reinforcing member may have a substantially U-like shape having the front plate portion and left and right side plate portions extending rearward from the left and right edges of the front plate portion. The reinforcing member may be a flat plate including only the front plate portion.

In the above embodiment, the main frame 70 has the structure having the connection frame portion 74 that connects the lower ends of the pair of front frame portions 73 to each other, but for example, the main frame may have a structure having no connection frame portion.

In the above embodiment, the vehicle seat S mounted on the automobile is illustrated as the vehicle seat, but the vehicle seat may be a seat mounted on a railway vehicle or the like, for example. The vehicle seat may be a vehicle mounted on a vehicle other than a vehicle, for example, a seat of an aircraft, a ship, or the like.

The elements described in the above embodiments and modifications may be implemented in any combination.

Claims (10)

1. A vehicle seat comprising a headrest, said vehicle seat characterized in that,

The headrest includes a headrest frame constituting a skeleton,

The headrest frame includes:

a main frame having a pair of vertically extending column parts arranged apart from each other in a left-right direction, a pair of upper frame parts extending forward from upper ends of the pair of column parts, and a pair of front frame parts extending downward from front ends of the pair of upper frame parts; and

A plate-shaped reinforcing member is disposed between and fixed to the pair of front frame portions.

2. The vehicle seat according to claim 1, wherein the reinforcing member is disposed on a lower side than an upper end of the upper frame portion and on an upper side than a lower end of the front frame portion.

3. The vehicle seat according to claim 1, wherein a front surface of the reinforcing member is disposed further rearward than a front surface of the front frame portion.

4. The vehicle seat according to claim 1, wherein the reinforcing member has a front plate portion and a flange portion extending rearward from an edge portion of the front plate portion,

The flange part has a flange upper part including an upper end part of the flange part and a flange lower part positioned below the flange upper part,

The flange upper portion protrudes rearward than the flange lower portion.

5. The vehicle seat according to claim 4, wherein the reinforcing member has a tongue portion protruding rearward from an upper end portion of the flange portion, bent, and extending downward.

6. The vehicle seat according to claim 5, wherein the tongue portion is located at a left-right center portion of an upper end portion of the flange portion, and a left-right width is smaller than a left-right width of the upper end portion of the flange portion.

7. The vehicle seat according to claim 4, wherein the flange portion has a fragile portion that is located between the flange upper portion and the flange lower portion and has a shape recessed forward with respect to a rear end of the flange lower portion.

8. The vehicle seat according to claim 4, wherein the front plate portion has a concave portion in a shape recessed rearward.

9. The vehicle seat according to claim 8, wherein the front plate portion has a through hole penetrating in the bottom portion of the recess in the front-rear direction.

10. The vehicle seat according to any one of claims 1 to 9, comprising a seat cushion and a seat back,

The seat cushion includes a seat cushion frame constituting a skeleton, a seat cushion pad covering the seat cushion frame, and a seat cushion skin covering the seat cushion frame and the seat cushion pad,

The seat back includes a seat back frame constituting a skeleton, a seat back cushion covering the seat back frame, and a seat back skin covering the seat back frame and the seat back cushion,

The headrest includes a headrest cushion covering a portion of the headrest frame, and a headrest skin covering the headrest cushion.