Vehicle seats

The vehicle seat's headrest frame is strengthened by incorporating a reinforcing member between its frame portions, enhancing rigidity and impact absorption while maintaining a compact and lightweight structure.

JP7804194B2Active Publication Date: 2026-01-22TS TECH CO LTD
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Patent Information

Application Number
JP2022205970
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2022-12-22
Publication Date
2026-01-22
Estimated Expiration
2042-12-22

AI Technical Summary

Technical Problem

There is a demand for improved strength of the headrest frame in vehicle seats.

Method used

A vehicle seat with a headrest frame that includes a main frame having pillar and front frame portions, and a plate-shaped reinforcing member arranged between the front frame portions, with specific configurations to enhance rigidity and compactness.

Benefits of technology

The reinforcing member improves the strength and rigidity of the headrest frame while maintaining a compact and lightweight design, capable of absorbing impact energy.

✦ Generated by Eureka AI based on patent content.

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Patent Text Reader

Abstract

To provide a vehicle seat which can improve strength of a headrest frame.SOLUTION: A vehicle seat includes a headrest. The headrest has a headrest frame F3 constituting a skeleton. The headrest frame F3 has a main frame 70 which has a pair of pillar sections 71 which is disposed by being separated to the right and left and vertically extends, a pair of upper frame sections 72 which respectively extend to the front from the upper ends of the pair of pillar sections 71 and a pair of front frame sections 73 which respectively extend downward from the front ends of the pair of the upper frame sections 72, and a planar reinforcement member 80 which is arranged between the pair of front frame sections 73 and is fixed to the pair of front frame sections 73.SELECTED DRAWING: Figure 3
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Description

[Technical Field]

[0001] The present invention relates to a vehicle seat having a headrest. [Background technology]

[0002] A headrest that has been known in the past is one that includes a cover, a pad formed by hardening foamed urethane injected into the cover, and a stay that is partially inserted into the cover (Patent Document 1). In this technology, the stay is made of a pipe material having a pair of left and right linear shaft portions that are attached to the seat back, and a bent portion is formed extending forward and downward from the upper end of the linear shaft portion. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2013-014255 Summary of the Invention [Problem to be solved by the invention]

[0004] Incidentally, there is a demand for improved strength of the headrest frame.

[0005] Therefore, an object of the present invention is to provide a vehicle seat that can improve the strength of the headrest frame. [Means for solving the problem]

[0006] The vehicle seat is a vehicle seat equipped with a headrest, the headrest having a headrest frame that forms a skeleton, and the headrest frame can be configured to include a main frame having a pair of pillar portions extending vertically and spaced apart on the left and right, a pair of upper frame portions extending forward from the upper ends of the pair of pillar portions, and a pair of front frame portions extending downward from the front ends of the pair of upper frame portions, and a plate-shaped reinforcing member arranged between the pair of front frame portions and fixed to the pair of front frame portions.

[0007] By providing the headrest frame with the reinforcing member, the strength of the headrest frame can be improved.

[0008] The reinforcing member may be arranged below the upper end of the upper frame portion and above the lower end of the front frame portion.

[0009] By arranging the reinforcing member below the upper end of the upper frame portion and above the lower end of the front frame portion, the reinforcing member can be arranged compactly.

[0010] The front surface of the reinforcing member may be disposed behind the front surface of the front frame portion.

[0011] By arranging the front surface of the reinforcing member behind the front surface of the front frame portion, the reinforcing member can be arranged compactly so as not to protrude forward relative to the front frame portion.

[0012] The reinforcing member may also have a front plate portion and a flange portion extending rearward from the edge of the front plate portion, the flange portion having an upper flange portion including the upper end portion of the flange portion and a lower flange portion located below the upper flange portion, and the upper flange portion may protrude rearward more than the lower flange portion.

[0013] By having the flange portion of the reinforcing member have an upper flange portion that protrudes further rearward than the lower flange portion, the rigidity of the upper portion of the reinforcing member, which is more likely to receive a load, can be improved.

[0014] The reinforcing member may have a tongue portion projecting rearward from an upper end of the flange portion.

[0015] The reinforcing member has a tongue portion that protrudes rearward from the upper end of the flange portion and curves downward, thereby further improving the rigidity of the upper portion of the reinforcing member.

[0016] The tongue portion may be located at the left-right center of the upper end of the flange portion, and may have a width smaller than the width of the upper end of the flange portion.

[0017] Because the left and right width of the tongue portion is smaller than the left and right width of the upper end of the flange portion, the tongue portion improves the rigidity of the upper part of the reinforcing member while making the reinforcing member more compact and lightweight.

[0018] The flange portion may also have a weakened portion located between the flange upper portion and the flange lower portion, the weakened portion having a shape recessed forward relative to the rear end of the flange lower portion.

[0019] The flange has a weak part between the upper and lower flange parts, so that when an impact is applied to the reinforcing member, the reinforcing member can bend and deform near the weak part, thereby absorbing the impact energy.

[0020] The front plate portion may have a recess that is recessed rearward.

[0021] The front plate portion has a recess, which can improve the rigidity of the reinforcing member, and therefore the strength of the headrest frame can be further improved by the reinforcing member.

[0022] The front plate may have a through-hole that penetrates the front plate from front to rear at the bottom of the recess.

[0023] By forming the through hole in the front plate portion at the bottom of the recess, it is possible to suppress a decrease in strength of the reinforcing member due to the formation of the through hole.

[0024] The vehicle seat may include a seat cushion and a seat back, the seat cushion including a seat cushion frame that forms a skeleton, a seat cushion pad that covers the seat cushion frame, and a seat cushion skin that covers the seat cushion frame and the seat cushion pad, the seat back including a seat back frame that forms a skeleton, a seat back pad that covers the seat back frame, and a seat back skin that covers the seat back frame and the seat back pad, and the headrest including a headrest pad that covers a portion of the headrest frame and a headrest skin that covers the headrest pad. [Effects of the Invention]

[0025] By providing the headrest frame with the reinforcing member, the strength of the headrest frame can be improved.

[0026] Furthermore, since 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 can be disposed compactly.

[0027] Furthermore, since the front surface of the reinforcing member is disposed behind the front surface of the front frame portion, the reinforcing member can be disposed compactly so as not to protrude forward relative to the front frame portion.

[0028] Furthermore, by having the flange portion of the reinforcing member have an upper flange portion that protrudes further rearward than the lower flange portion, the rigidity of the upper portion of the reinforcing member, which is more likely to receive a load, can be improved.

[0029] Furthermore, the reinforcing member has a tongue that protrudes rearward from the upper end of the flange and curves downward, thereby further improving the rigidity of the upper portion of the reinforcing member.

[0030] Furthermore, since the left and right width of the tongue portion is smaller than the left and right width of the upper end portion of the flange portion, the tongue portion can improve the rigidity of the upper portion of the reinforcing member while making the reinforcing member more compact and lightweight.

[0031] Furthermore, since the flange portion has a weak portion between the upper and lower flange portions, when an impact is applied to the reinforcing member, the reinforcing member can bend and deform near the weak portion, thereby absorbing the impact energy.

[0032] Furthermore, since the front plate portion has a recess, the rigidity of the reinforcing member can be improved, and the strength of the headrest frame can be further improved by the reinforcing member.

[0033] Furthermore, by forming the through hole in the front plate portion at the bottom of the recess, it is possible to suppress a decrease in strength of the reinforcing member due to the formation of the through hole. [Brief explanation of the drawings]

[0034] [Figure 1] 1 is a perspective view of a vehicle seat according to an embodiment; [Figure 2] FIG. 2 is a perspective view of a seat cushion frame and a seat back frame. [Figure 3] FIG. [Figure 4] 1A is a perspective view of the reinforcing member as seen from the front, and FIG. 1B is a perspective view of the reinforcing member as seen from the back. [Figure 5] FIG. [Figure 6] FIG. [Figure 7] FIG. [Figure 8] FIG. DETAILED DESCRIPTION OF THE INVENTION

[0035] Next, an embodiment of a vehicle seat will be described. In this specification, front, back, left, right, top and bottom correspond to front, back, left, right, top and bottom as seen from the perspective of a person sitting in the seat (seat occupant). 1, the vehicle seat according to the embodiment is configured as a vehicle seat S to be mounted on a vehicle as an example of a vehicle, specifically, an automobile. The vehicle seat S is a rear seat of the automobile, and includes a seat cushion S1, a seat back S2, and a headrest S3.

[0036] 1 and 2, the seat cushion S1 includes a seat cushion frame F1 that forms a skeleton, a seat cushion pad P1 that covers the seat cushion frame F1, and a seat cushion cover C1 that covers the seat cushion frame F1 and the seat cushion pad P1. The seat cushion S1 is formed by covering the seat cushion frame F1 with the seat cushion pad P1 and the seat cushion cover C1.

[0037] The seat cushion frame F1 is made of, for example, a metal pipe. The seat cushion frame F1 has left and right seat cushion side frames 11, 12 arranged facing each other with a gap between them, a front frame 13 connecting the front ends of the left and right seat cushion side frames 11, 12, and a rear frame 14 connecting the rear ends of the left and right seat cushion side frames 11, 12. The seat cushion pad P1 is made of urethane foam or the like, and the seat cushion cover C1 is made of fabric, leather, or the like.

[0038] The seat back S2 includes a seat back frame F2 that forms the framework, a seat back pad P2 that covers the seat back frame F2, and a seat back skin C2 that covers the seat back frame F2 and the seat back pad P2. The seat back S2 is formed by covering the seat back frame F2 with the seat back pad P2 and the seat back skin C2.

[0039] The seatback frame F2 includes a seatback main frame 20, a first cross member 31, a second cross member 32, and a pan frame 40.

[0040] The seatback main frame 20 is made of, for example, a metal pipe. The seatback main frame 20 has an upper frame portion 21, a lower frame portion 22 arranged opposite to the upper frame portion 21 with a gap therebetween, a left frame portion 23 connecting the left ends of the upper frame portion 21 and the lower frame portion 22, and a right frame portion 24 connecting the right ends of the upper frame portion 21 and the lower frame portion 22 with a gap therebetween and arranged opposite to the left frame portion 23.

[0041] The first cross member 31 is made of 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 is made of 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.

[0042] Two pairs of left and right holders 25L, 25R that hold headrest guides are fixed to the upper frame portion 21. The left pair of holders 25L are fixed by welding to the front surface of the upper frame portion 21 at a position between the first cross member 31 and the left frame portion 23 in the left-right direction. The right pair of holders 25R are fixed by welding to the front surface of the upper frame portion 21 at a position between the second cross member 32 and the right frame portion 24 in the left-right direction.

[0043] The pan frame 40 is formed by processing a metal plate and is disposed so as to cover the seatback main frame 20 from behind. The pan frame 40 is fixed to the seatback main frame 20 by welding or the like. The pan frame 40 is also fixed to the first cross member 31 and the second cross member 32 by welding or the like.

[0044] The seat back pad P2 is made of urethane foam or the like, and the seat back cover C2 is made of fabric, leather or the like.

[0045] As shown in FIG. 1, the headrest S3 includes a headrest frame F3 (see FIG. 3) that forms the skeleton, a headrest pad P3 that covers a part of the headrest frame F3, and a headrest skin C3 that covers the headrest pad P3.

[0046] The headrest S3 is formed by placing a portion of the headrest frame F3 inside the headrest skin C3, and then injecting and hardening the material of the headrest pad P3. The headrest pad P3 is made of foam resin such as urethane foam, and the headrest skin C3 is made of fabric, leather, or the like.

[0047] As shown in FIG. 3, the headrest frame F3 includes a main frame 70 and a plate-shaped reinforcing member 80. The main frame 70 is formed by bending a metal pipe, and has a pair of pillar portions 71, a pair of upper frame portions 72, a pair of front frame portions 73, and a connecting frame portion 74.

[0048] The pair of pillar portions 71 are portions that are inserted into the headrest guides held by the pair of holders 25L or the pair of holders 25R, and each extends vertically. The pair of pillar portions 71 are arranged spaced apart on the left and right. The pair of upper frame portions 72 extend forward from the upper ends of the pair of pillar portions 71, respectively.

[0049] The pair of front frame portions 73 extend downward from the front ends of the pair of upper frame portions 72, respectively. The connecting frame portion 74 extends laterally and connects the lower ends of the pair of front frame portions 73 together.

[0050] As shown in FIGS. 4(a) and 4(b), the reinforcing member 80 is formed by bending a metal plate, and has a front plate portion 81, a flange portion 82, and a tongue portion 83. The front plate 81 has a generally rectangular shape. The front plate 81 also has a recess 81A and a through-hole 81B. The recess 81A is a recess that is recessed rearward. In this embodiment, the recess 81A has a generally rectangular shape that is long in the left-right direction, and is provided at a position toward the bottom of the center of the front plate 81 in the up-down direction.

[0051] The through-hole 81B is a substantially circular hole that penetrates from front to back. The through-hole 81B is formed in the bottom of the recessed portion 81A. In this embodiment, two through-holes 81B are formed. The two through-holes 81B are arranged spaced apart on the left and right sides at the bottom of the recessed portion 81A. The two through-holes 81B are holes into which a jig for supporting the reinforcing member 80 is inserted when the reinforcing member 80 is welded and fixed to the main frame 70.

[0052] The flange portion 82 is a portion extending rearward from an edge of the front plate portion 81. The flange portion 82 integrally includes an upper flange portion 82A extending rearward from the upper edge of the front plate portion 81, a lower flange portion 82B extending rearward from the lower edge of the front plate portion 81, a left flange portion 82C extending rearward from the left edge of the front plate portion 81, and a right flange portion 82D extending rearward from the right edge of the front plate portion 81. The left flange portion 82C and the right flange portion 82D have bilaterally symmetrical shapes. A connection portion 84 between the front plate portion 81 and the flange portions 82 (82A to 82D) has a rounded curved shape (see also FIGS. 5 and 6).

[0053] As shown in FIG. 5, the flange portion 82 has an upper flange portion 821 , a lower flange portion 822 , and a weakened portion 823 . The flange upper portion 821 includes an upper flange portion 82A which is the upper end portion of the flange portion 82. In this embodiment, the flange upper portion 821 is made up of the upper flange portion 82A, the upper end portion of the left flange portion 82C, and the upper end portion of the right flange portion 82D (see FIG. 4(b)).

[0054] The flange lower portion 822 is located lower than the flange upper portion 821. In this embodiment, the flange lower portion 822 is made up of a portion of the left flange portion 82C below the center in the vertical direction, a portion of the right flange portion 82D below the center in the vertical direction, and the lower flange portion 82B. The flange upper portion 821 protrudes further rearward than the flange lower portion 822. In other words, 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.

[0055] The fragile 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 that is recessed forward relative to the rear end (see dashed dotted 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.

[0056] As shown in Figures 4(b) and 5, the tongue portion 83 is a portion that protrudes rearward from the upper flange portion 82A and extends downward in a curved manner. As shown in Figure 6, the tongue portion 83 is located at a position corresponding to the left-right center of the upper flange portion 82A in the left-right direction. The left-right width W83 of the tongue portion 83 is smaller than the left-right width W82 of the upper flange portion 82A. The left and right corners 83A located at the tip of the tongue portion 83 have rounded shapes with the corners removed.

[0057] 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. More specifically, the left and right ends of the front plate portion 81 of the reinforcing member 80 are fixed to the pair of front frame portions 73 by welding (see welds W1, W2). Furthermore, although not shown in the drawings, the leading ends (rear ends) of the left and right flange portions 82C, 82D of the reinforcing member 80 are fixed to the pair of front frame portions 73 by welding at positions behind the welds W1, W2.

[0058] In this embodiment, the welded portions W1 and W2 overlap with the recessed portion 81A in the extension direction of the front frame portion 73. The welded portions W1 and W2 also overlap with the two through holes 81B in the extension direction of the front frame portion 73.

[0059] 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 in the up-down direction at a position between the two dashed dotted lines shown in Fig. 8. Furthermore, a front surface 80F of the reinforcing member 80 is disposed behind a front surface 73F of the front frame portion 73. In other words, the reinforcing member 80 is disposed so as not to protrude forward of the front frame portion 73.

[0060] Furthermore, the portion of the reinforcing member 80 below the weak portion 823 is positioned in front of the rear surface 73R of the front frame portion 73. In other words, the portion of the reinforcing member 80 below the weak portion 823 is positioned so as not to protrude rearward from the front frame portion 73. Furthermore, the portion of the reinforcing member 80 below the weak portion 823 is formed to a size that fits within the width of the front frame portion 73 in the front-to-rear direction.

[0061] The headrest cover C3 and headrest pad P3 shown by imaginary lines in Fig. 8 cover the upper ends of the pair of pillar portions 71 of the main frame 70, the pair of upper frame portions 72, the pair of front frame portions 73, and the connecting frame portion 74 (see Fig. 3) of the headrest frame F3, as well as the reinforcing member 80. The portion below the upper ends of the pair of pillar portions 71 is exposed to the outside, and is inserted into headrest guides held by the pair of holders 25L or the pair of holders 25R, thereby attaching the headrest S3 to the seat back S2.

[0062] According to the vehicle seat S of this embodiment, the headrest frame F3 is provided with the reinforcing member 80, thereby making it possible to improve the strength of the headrest frame F3.

[0063] Furthermore, 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 disposed compactly.

[0064] Furthermore, since the front surface 80F of the reinforcing member 80 is disposed behind the front surface 73F of the front frame portion 73, the reinforcing member 80 can be disposed compactly so as not to protrude forward relative to the front frame portion 73.

[0065] Furthermore, by having flange portion 82 of reinforcing member 80 have flange upper portion 821 that protrudes further rearward than flange lower portion 822, the rigidity of the upper portion of reinforcing member 80, which is likely to be subjected to a load, can be improved.

[0066] Furthermore, since the reinforcing member 80 has the tongue portion 83 that protrudes rearward from the upper flange portion 82A and curves downward, the rigidity of the upper portion of the reinforcing member 80 can be further improved.

[0067] Furthermore, because the left-right width W83 of the tongue portion 83 is smaller than the left-right width W82 of the upper flange portion 82A, the tongue portion 83 improves the rigidity of the upper portion of the reinforcing member 80, while also achieving a more compact and lightweight reinforcing member 80. Furthermore, because the tongue portion 83 is small, the material of the headrest pad P3 can flow smoothly when part of the headrest frame F3 is placed inside the headrest upholstery C3 and the material of the headrest pad P3 is injected into the headrest upholstery C3.

[0068] Furthermore, since the flange portion 82 has the weak portion 823 between the flange upper portion 821 and the flange lower portion 822, when an impact is applied to the reinforcing member 80, the reinforcing member 80 can be deformed so as to bend near the weak portion 823. This makes it possible to absorb the impact energy.

[0069] Furthermore, since the front plate portion 81 has the recessed portion 81A, the rigidity of the reinforcing member 80 can be improved, and the reinforcing member 80 can further improve the strength of the headrest frame F3.

[0070] Furthermore, by forming the through-hole 81B of the front plate portion 81 at the bottom of the recessed portion 81A, it is possible to prevent a decrease in strength of the reinforcing member 80 due to the formation of the through-hole 81B.

[0071] Furthermore, since the connection portion 84 between the front plate portion 81 and the flange portion 82 has a rounded curved shape, and the tongue portion 83 has a curved portion and a rounded corner portion 83A, damage to the headrest pad P3 covering the headrest frame F3 can be reduced.

[0072] Furthermore, since the connecting portion 84 has a rounded curved shape and the tongue portion 83 has a curved portion and a rounded corner portion 83A, when a portion of the headrest frame F3 is placed inside the headrest upholstery C3 and the material of the headrest pad P3 is injected into the headrest upholstery C3, the material of the headrest pad P3 can flow smoothly.

[0073] Furthermore, by forming the portion of the reinforcing member 80 below the weak portion 823 to a size that fits within the width of the front frame portion 73 in the fore-and-aft direction, the reinforcing member 80 can be made compact and lightweight.

[0074] Furthermore, by overlapping the positions of the welded portions W1, W2 in the extension direction of the front frame portion 73 with the recessed portion 81A, the reinforcing member 80 can be fixed to the main frame 70 near the portion of the front plate portion 81 (reinforcing member 80) where the rigidity is improved. This improves the attachment strength of the reinforcing member 80 to the main frame 70, thereby further improving the strength of the headrest frame F3.

[0075] Although the embodiment has been described above, the vehicle seat can be modified as appropriate as exemplified below.

[0076] In the above embodiment, the tongue portion 83 is located at a position corresponding to the lateral center of the upper flange portion 82A, but the tongue portion may be located at a position shifted to the left or right, for example. Also, in the above embodiment, the lateral width W83 of the tongue portion 83 is smaller than the lateral width W82 of the upper flange portion 82A, but for example, the lateral width of the tongue portion may be approximately the same as the lateral width of the upper end portion of the flange portion. Also, the reinforcing member may not be configured to include a tongue portion.

[0077] In the above embodiment, the flange portion 82 has the weakened portion 823, but for example, the flange portion may have no weakened portion formed therein.

[0078] In the above embodiment, the flange portion 82 has an upper flange portion 821 and a lower flange portion 822, and the upper flange portion 821 protrudes further rearward than the lower flange portion 822. However, for example, the amount of rearward protrusion of the upper flange portion and the lower flange portion may be approximately the same.

[0079] In the above embodiment, the front plate 81 has two through holes 81B at the bottom of the recess 81A, but the number of through holes may be one, or three or more. Also, the recess may not have a through hole at the bottom.

[0080] In the above embodiment, the front plate 81 has one recess 81A recessed rearward, but the front plate may have multiple recesses. Also, the front plate may not have a recessed rearward.

[0081] In the above embodiment, the front surface 80F of the reinforcing member 80 was positioned behind the front surface 73F of the front frame portion 73, but for example, the reinforcing member may be positioned in a state where it protrudes slightly forward from the front surface of the front frame portion.

[0082] In the above embodiment, 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. Also, the lower end of the reinforcing member may be located slightly below the lower end of the front frame portion.

[0083] In the above embodiment, the reinforcing member 80 is generally box-shaped and has a front plate 81 and a series of flanges 82 extending rearward from the top, bottom, left, and right edges of the front plate 81. However, for example, the reinforcing member may be generally U-shaped and have a front plate and left and right side plate portions extending rearward from the left and right edges of the front plate. Also, the reinforcing member may be a flat plate consisting only of the front plate.

[0084] In the above embodiment, the main frame 70 is configured to have a connecting frame portion 74 that connects the lower ends of a pair of front frame portions 73 together, but for example, the main frame may be configured not to have a connecting frame portion.

[0085] In the above embodiment, the vehicle seat S mounted in an automobile is exemplified as the vehicle seat, but the vehicle seat may be, for example, a seat mounted in a railway vehicle, etc. Furthermore, the vehicle seat may be a seat mounted in a vehicle other than a car, for example, an airplane, a ship, etc.

[0086] The elements described in the above-described embodiment and modified examples may be implemented in any combination. [Explanation of symbols]

[0087] 70 Mainframe 71 Pillar section 72 Upper frame part 73 Front frame section 73F front 80 Reinforcement member 80F front 81 Front plate part 81A Recess 81B Through hole 82 Flange 82A Upper flange 83 Tongue 821 Flange top 822 Flange bottom 823 Weak part C1 Seat cushion cover C2 seat back skin C3 headrest cover E1 top end E2 bottom end F1 seat cushion frame F2 seat back frame F3 headrest frame P1 seat cushion pad P2 seat back pad P3 headrest pad S vehicle seat S1 seat cushion S2 seat back S3 Headrest

Claims

1. A vehicle seat having a headrest, The headrest includes a headrest frame that forms a skeleton, The headrest frame is a main frame including a pair of pillar portions extending vertically and spaced apart from each other on the left and right, a pair of upper frame portions extending forward from upper ends of the pair of pillar portions, and a pair of front frame portions extending downward from front ends of the pair of upper frame portions; a plate-shaped reinforcing member disposed between the pair of front frame portions and fixed to the pair of front frame portions, 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 has 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 vehicle seat is characterized in that the upper flange portion protrudes rearward more than the lower flange portion.

2. 2. The vehicle seat according to claim 1, wherein the reinforcing member has a tongue portion that protrudes rearward from an upper end of the flange portion and curves downward.

3. 3. The vehicle seat according to claim 2, wherein the tongue portion is located at the center of the upper end of the flange portion, and the width of the tongue portion is smaller than the width of the upper end of the flange portion.

4. 2. The vehicle seat according to claim 1, wherein the flange portion has a weak portion located between the flange upper portion and the flange lower portion, the weak portion having a shape recessed forward relative to the rear end of the flange lower portion.

5. 2. The vehicle seat according to claim 1, wherein the front panel portion has a recessed portion that is recessed rearward.

6. The vehicle seat according to claim 5, wherein the front panel portion has a through-hole penetrating from the front to the rear at the bottom of the recess.

7. The front plate portion is fixed to the pair of front frame portions, 6. The vehicle seat according to claim 5, wherein the vertical positions of the fixing portions between the front plate portion and the pair of front frame portions overlap the vertical positions of the recesses.

8. The flange lower portion has portions extending rearward from the left and right edges of the front plate portion, The vehicle seat according to claim 5, characterized in that the front-to-rear distance from the front surface of the front plate portion to the rear surface of the portion having the recess is smaller than the front-to-rear distance from the front surface of the front plate portion to the rear end of the lower flange.

9. The flange lower portion further has a lower flange portion extending rearward from a lower edge portion of the front plate portion, 9. The vehicle seat according to claim 8, wherein the front-to-rear distance from the front surface of the front plate portion to the rear end of the lower flange portion is greater than the front-to-rear distance from the front surface of the front plate portion to the rear end of the lower flange portion.

10. A seat cushion and a seat back are provided, The seat cushion includes a seat cushion frame that forms a skeleton, a seat cushion pad that covers the seat cushion frame, and a seat cushion skin that covers the seat cushion frame and the seat cushion pad, The seat back includes a seat back frame that forms a framework, a seat back pad that covers the seat back frame, and a seat back skin that covers the seat back frame and the seat back pad, 10. The vehicle seat according to claim 1, wherein the headrest comprises a headrest pad that covers a portion of the headrest frame, and a headrest cover that covers the headrest pad.

Citation Information

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