Vehicle seat

Abstract

To provide a seat for a vehicle having a simple mounting structure of a headrest, excellent durability, and good workability in removing components.SOLUTION: The headrest guide member 17 has the cantilever piece 32 extending upward on the side 19A of the cylindrical portion 19 and elastically deformable toward the inside of the headrest guide member 17, the cantilever piece 32 has the locking claw portion 33 protruding outward and the release piece portion 35 provided at the upper end, the stay member 13 has the locking hole 39 capable of locking the locking claw portion 33, and the release piece portion 35 protrudes upward from the stay member 13.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] A headrest mounting structure for a vehicle seat is known (for example, see Patent Document 1). The headrest mounting structure has a cylindrical stay member provided on the upper part of the seatback frame and a headrest guide member supported by the stay member. A headrest pillar extending from the headrest is inserted into the headrest guide member.

[0003] The headrest guide member has a semi-cylindrical fixed body portion and a spring-biased semi-cylindrical movable body portion whose vertical middle portion is pivotally supported on the fixed body portion. The fixed body portion and the movable body portion cooperate to define a pillar support hole into which the headrest pillar is inserted. A locking claw is formed at the lower end of the fixed body portion and the movable body portion. The locking claw is biased by a spring force and locks onto the edge of the stay member, thereby fixing the headrest guide member to the stay member. To remove the headrest guide member from the stay member, a tool such as a screwdriver is inserted from the upper end of the pillar support hole and the tool is used to push the upper end of the movable body portion against the spring force. This causes the locking claw to move away from the edge of the stay member. [Prior art documents] [Patent documents]

[0004] [Patent Document 1] Japanese Patent Application Publication No. 10-99160 Summary of the Invention [Problem to be solved by the invention]

[0005] In the prior art, the structure of the headrest guide member is complicated. Because the fixed side body portion and the movable side body portion of the headrest guide member are in the front-to-rear direction, the load supporting the user's head from behind acts in the direction of engaging and disengaging the locking claw. For this reason, the locking claw needs to be strong to achieve the required durability. When removing the headrest guide member from the stay member, a tool must be inserted into the narrow pillar support hole, which makes the work difficult.

[0006] SUMMARY OF THE INVENTION In view of the above background, an object of the present invention is to provide a vehicle seat in which the headrest guide member can be easily removed. [Means for solving the problem]

[0007] In order to solve the above-mentioned problems, one aspect of the present invention is a vehicle seat (1), comprising: a seat back frame (5) that constitutes the framework of a seat back (2) that supports the back of an occupant; a cylindrical stay member (11) that is attached to the seat back frame and extends in the vertical direction; a headrest guide member having a cylindrical portion (19) that is inserted into the stay member; and a pillar support hole (27) that extends in the vertical direction through the cylindrical portion; and a headrest pillar (11) that is inserted into the pillar support hole. The headrest guide member has a cantilever (32) that extends upward at the side (19A) of the tubular portion and is elastically deformable toward the inside of the headrest guide member, the cantilever having a locking claw portion (33) that protrudes outward from the cantilever and a release piece portion (35) provided at the upper end of the cantilever, the stay member has a locking hole (39) that can lock the locking claw, and the release piece protrudes upward from the stay member.

[0008] According to this aspect, the operator can release the locking claw from the locking hole by pressing the release piece that protrudes upward from the stay member. Therefore, it is possible to provide a vehicle seat that makes it easy to remove the headrest guide member. In addition, the headrest guide member has a simple structure.

[0009] In the above aspect, a recess (41) recessed downward may be provided on the upper edge of the stay member, and the recess may face the release piece portion.

[0010] According to this aspect, the operation of removing the headrest guide member from the stay member can be performed with even greater ease.

[0011] In the above aspect, a pair of sets of the stay member and the headrest guide member may be provided on the left and right, and the left and right cantilevers and the engagement holes may be provided on opposing side portions (13A, 19A) of the left and right stay members and headrest guide members.

[0012] According to this aspect, the load applied to the locking claw portion is reduced.

[0013] In the above aspect, a slot communicating with the pillar support hole may be formed on the side of the tubular portion, the cantilever piece may extend upward within the slot from the lower edge of the slot, and the outer surface of the tubular portion may be provided with a plurality of first ribs (25) extending laterally and a plurality of second ribs (37) connected to the first ribs and extending along the edge of the slot.

[0014] According to this aspect, the rigidity of the cylindrical portion is improved.

[0015] In the above aspect, an inner rib (47) extending in the vertical direction may be provided on the inner surface of the cantilever piece on the pillar support hole side.

[0016] According to this aspect, the rigidity of the cantilever is improved.

[0017] In the above aspect, the inner rib may extend to the inner surface of the cylindrical portion, passing through the lower end of the cantilever.

[0018] According to this aspect, the rigidity of the cantilever is further improved.

[0019] In the above aspect, a seat back pad (6) is supported on the seat back frame, and the seat back pad has a stay receiving hole (8) that penetrates vertically and receives the stay member, and a groove portion (50) that is recessed downward from the upper end surface of the seat back pad and is connected to the stay receiving hole, and the groove portion may face the release piece portion.

[0020] According to this aspect, the release piece portion can be easily accessed from the outside, improving the workability of removing the headrest guide member from the stay member.

[0021] In the above aspect, a pad-side rib (52) protruding toward the stay member may be provided at the boundary between the groove and the stay-receiving hole.

[0022] According to this aspect, the rigidity of the seat back pad around the groove portion is improved.

[0023] In the above aspect, the headrest guide member may have an enlarged head portion provided at the upper end of the tubular portion, and a mark (22) indicating the presence of the locking claw portion may be provided on the outer surface of the enlarged head portion on the same side as the locking claw portion.

[0024] According to this aspect, the workability of removing the headrest guide member from the stay member is improved.

[0025] In the above aspect, when the headrest pillar is inserted into the pillar support hole, the cantilever piece may come into contact with the headrest pillar, thereby preventing displacement of the cantilever piece into the pillar support hole.

[0026] According to this aspect, the headrest guide member is less likely to fall off the stay member when the headrest is in use. [Effects of the Invention]

[0027] One aspect of the present invention is a vehicle seat (1), comprising: a seat back frame (5) that constitutes the framework of a seat back (2) that supports the back of an occupant; a cylindrical stay member (11) attached to the seat back frame and extending in the vertical direction; a headrest guide member having a cylindrical portion (19) inserted into the stay member and a pillar support hole (27) extending in the vertical direction through the cylindrical portion; and a headrest pillar (11) that is inserted into the pillar support hole. The headrest guide member has a cantilever (32) that extends upward at the side (19A) of the tubular portion and is elastically deformable toward the inside of the headrest guide member, the cantilever having a locking claw portion (33) that protrudes outward from the cantilever and a release piece portion (35) provided at the upper end of the cantilever, the stay member has a locking hole (39) that can lock the locking claw, and the release piece portion protrudes upward from the stay member.

[0028] According to this aspect, the operator can release the locking claw from the locking hole by pressing the release piece that protrudes upward from the stay member. Therefore, it is possible to provide a vehicle seat that makes it easy to remove the headrest guide member. In addition, the headrest guide member has a simple structure.

[0029] In the above aspect, a recess (41) recessed downward may be provided on the upper edge of the stay member, and the recess may face the release piece portion.

[0030] According to this aspect, the operation of removing the headrest guide member from the stay member can be performed with even greater ease.

[0031] In the above aspect, a pair of sets of the stay member and the headrest guide member may be provided on the left and right, and the left and right cantilevers and the engagement holes may be provided on opposing side portions (13A, 19A) of the left and right stay members and headrest guide members.

[0032] According to this aspect, the load applied to the locking claw portion is reduced.

[0033] In the above aspect, a slot communicating with the pillar support hole may be formed on the side of the tubular portion, the cantilever piece may extend upward within the slot from the lower edge of the slot, and the outer surface of the tubular portion may be provided with a plurality of first ribs (25) extending laterally and a plurality of second ribs (37) connected to the first ribs and extending along the edge of the slot.

[0034] According to this aspect, the rigidity of the cylindrical portion is improved.

[0035] In the above aspect, an inner rib (47) extending in the vertical direction may be provided on the inner surface of the cantilever piece on the pillar support hole side.

[0036] According to this aspect, the rigidity of the cantilever is improved.

[0037] In the above aspect, the inner rib may extend to the inner surface of the cylindrical portion, passing through the lower end of the cantilever.

[0038] According to this aspect, the rigidity of the cantilever is further improved.

[0039] In the above aspect, a seat back pad (6) is supported on the seat back frame, and the seat back pad has a stay receiving hole (8) that penetrates vertically and receives the stay member, and a groove portion (50) that is recessed downward from the upper end surface of the seat back pad and is connected to the stay receiving hole, and the groove portion may face the release piece portion.

[0040] According to this aspect, the release piece portion can be easily accessed from the outside, improving the workability of removing the headrest guide member from the stay member.

[0041] In the above aspect, a pad-side rib (52) protruding toward the stay member may be provided at the boundary between the groove and the stay-receiving hole.

[0042] According to this aspect, the rigidity of the seat back pad around the groove portion is improved.

[0043] In the above aspect, the headrest guide member may have an enlarged head portion provided at the upper end of the tubular portion, and a mark (22) indicating the presence of the locking claw portion may be provided on the outer surface of the enlarged head portion on the same side as the locking claw portion.

[0044] According to this aspect, the workability of removing the headrest guide member from the stay member is improved.

[0045] In the above aspect, when the headrest pillar is inserted into the pillar support hole, the cantilever piece may come into contact with the headrest pillar, thereby preventing displacement of the cantilever piece into the pillar support hole.

[0046] According to this aspect, the headrest guide member is less likely to fall off the stay member when the headrest is in use. [Brief explanation of the drawings]

[0047] [Figure 1] 1 is a perspective view showing one embodiment of a vehicle seat according to the present invention; [Figure 2] FIG. 1 is a side view of a mounting portion of a headrest according to a first embodiment; [Figure 3] Vertical cross section of the mounting part seen from the front [Figure 4] FIG. 1 is an enlarged side view of a main part of a headrest guide member as viewed from the left side. [Figure 5] Cross-sectional view showing an example of the headrest guide member removal work [Figure 6] FIG. 10 is an enlarged side view of a main part of a mounting portion of a headrest according to a second embodiment, viewed from the left side; [Figure 7] 7 is a cross-sectional view taken along line VII-VII of FIG. [Figure 8] FIG. 10 is a cross-sectional plan view of a mounting portion of a headrest according to a third embodiment; DETAILED DESCRIPTION OF THE INVENTION

[0048] Hereinafter, an embodiment of a headrest for a vehicle seat according to the present invention will be described with reference to the drawings. In the following description, the left-right direction is defined based on the position of an occupant seated in the vehicle seat. The up-down direction is defined as the direction along the vertical direction. The front-rear direction is defined as the direction perpendicular to the vertical direction and the left-right direction.

[0049] First Embodiment 1, the seat 1 has a seat cushion 2, a seat back 3, and a headrest 4. The seat cushion 2 supports the buttocks of the user from below.

[0050] The seat back 3 extends upward from the rear of the seat cushion 2 and supports the user's back from behind. The seat back 3 has a seat back frame 5 that forms the framework of the seat back 3, and a seat back pad 6 (see FIGS. 2 and 3) made of urethane sponge or the like that is supported by the seat back frame 5. The surface of the seat back pad 6 is covered with a skin 7 (see FIGS. 2 and 3).

[0051] The headrest 4 is provided on the upper part of the seat back 3 and supports the user's head from behind. The headrest 4 has two headrest pillars 11, one on the left and one on the right, that extend in the vertical direction, and a headrest main body 12 attached to the upper part of the headrest pillars 11.

[0052] The seat back 3 supports the user's back from behind. The headrest 4 is provided above the seat back 3. The headrest 4 supports the user's head from behind. The headrest 4 has two headrest pillars 11, one on each side, that protrude upward from the top of the seat back 3, and a headrest main body 12 attached to the top of the headrest pillars 11.

[0053] The mounting structure of the headrest 4 will be described in detail with reference to FIGS.

[0054] The seatback frame 5 has an upper horizontal portion 5A (see FIG. 1) that extends substantially horizontally in the left-right direction. Left and right stay members 13 are joined to the upper horizontal portion 5A by welding or the like at a predetermined interval in the left-right direction. Each stay member 13 is received in a stay-receiving hole 8 formed in the seatback pad 6.

[0055] Each stay member 13 is a cylindrical body having a substantially rectangular cross section, and has a guide mounting hole 15 extending through it in the vertical direction.

[0056] Left and right headrest guide members 17 are attached to the corresponding guide mounting holes 15 of the left and right stay members 13. Each headrest guide member 17 is a molded product made of synthetic resin by injection molding or the like. Each headrest guide member 17 has a tubular portion 19 that is inserted into the guide mounting hole 15 and an enlarged head portion 21 that is integrally molded at the upper end of the tubular portion 19.

[0057] On the outer surface of the cylindrical portion 19, a plurality of vertical ribs 23 extending in the axial direction and a plurality of horizontal ribs 25 (first ribs) extending in the circumferential direction (horizontal direction) are formed (see FIG. 4).

[0058] The enlarged head portion 21 has an outer diameter larger than the outer diameter of the tubular portion 19. The enlarged head portion 21 protrudes above the skin 7 and is exposed to the outside.

[0059] Each headrest guide member 17 has a pillar support hole 27 formed therein, which passes through the tubular portion 19 and the expanded head portion 21 in the vertical direction. The lower portion of the corresponding headrest pillar 11 is inserted into each pillar support hole 27 (see FIG. 2). A known height adjustment mechanism (not shown) is incorporated between the headrest guide member 17 and the headrest pillar 11 to change and fix the position of the headrest pillar 11 in the axial direction relative to the headrest guide member 17, in order to adjust the height of the headrest main body 12.

[0060] As shown in Fig. 4, a slot 31 that communicates with the pillar support hole 27 is formed in one of the left and right side portions 19A near the upper ends of the tubular portions 19 of the left and right headrest guide members 17. The slot 31 is preferably provided in opposing side portions of the pair of left and right headrest guide members 17. For example, the slot 31 is preferably formed in the left side surface of the right headrest guide member 17.

[0061] A rectangular cantilever 32 is formed inside the slot 31, extending upward from the lower edge of the slot 31, i.e., extending in the up-and-down direction. The cantilever 32 is formed on the side portion 19A of each headrest guide member 17, on the side where the pair of left and right headrest guide members 17 face each other.

[0062] The cantilever 32 has its upper and both side edges surrounded by slots 31. The cantilever 32 has a base end 32A on its lower side that is continuous with the tubular portion 19. The cantilever 32 has a free end 32B on its upper side that is opposite the base end 32A. The cantilever 32 is elastically deformable in the radial direction of the tubular portion 19, that is, the left-right direction as viewed in FIG. 3 . In other words, the cantilever 32 is elastically deformable inward of the headrest guide member 17, i.e., toward the pillar support hole 27.

[0063] The cantilever piece 32 has a locking claw portion 33 on the base end 32A side, and a release piece portion 35 on the free end 32B side, that is, the upper end.

[0064] 3, each of the locking claws 33 has a check claw shape that protrudes outward. Each of the locking claws 33 has an upwardly facing steeply inclined surface 33A provided on the free end 32B side of the cantilever 32, and a downwardly facing gently inclined surface 33B provided on the base end 32A side of the cantilever 32 and continuing to the top of the steeply inclined surface 33A.

[0065] The tubular portion 19 has outer ribs 37 (second ribs) extending along the outer edge of the slot 31 on both sides of the locking claw portions 33. The outer ribs 37 are continuous with the transverse ribs 25. The outer ribs 37, together with the transverse ribs 25, reinforce the tubular portion 19 around the slot 31.

[0066] The release piece 35 has a flat plate shape that extends further toward the free end 32B of the cantilever piece 32 than the steeply inclined surface 33A of the locking claw 33, that is, upward than the steeply inclined surface 33A of the locking claw 33, and is formed integrally with the locking claw 33. The release piece 35, together with the locking claw 33, can be elastically displaced radially inward of the tubular portion 19.

[0067] The headrest guide member 17, which has the locking claw portion 33 and the release portion 35 integrally formed on the cantilever portion 32, is a single molded product and has a simple structure.

[0068] A mark 22 like a "-" is provided on the same surface of the enlarged head portion 21 of the headrest guide member 17 as the side portion 19A of the tubular portion 19 to indicate the side on which the locking claw portion 33 is located. The mark 22 like a "-" corresponds to the symbol mark of a tool such as a flathead screwdriver used to disengage the locking claw portion 33.

[0069] The stay member 13 has a side portion 13A that faces the locking claw portion 33 in the left-right direction. The side portion 13A is the side portion on which the pair of left and right headrest guide members 17 face each other.

[0070] A rectangular locking hole 39 into which the corresponding locking claw 33 can be engaged is formed in the side portion 13A of each stay member 13. Each headrest guide member 17 is locked to the stay member 13 so as not to slip out upward from the guide mounting hole 15 of the stay member 13 by the steeply inclined surface 33A of the locking claw 33 resiliently abutting against the downward-facing upper hole surface 39A of the corresponding locking hole 39.

[0071] The stay member 13 and the headrest guide member 17 are locked together by the engagement between the locking claws 33 and the locking holes 39 on the side portions 13A and 19A that face each other in the left-right direction, so the load supporting the user's head from behind does not act in the direction of engagement or disengagement between the locking claws 33 and the locking holes 39. This prevents the load supporting the user's head from behind from acting in a direction that allows elastic deformation of the cantilever 32, improving the durability of the cantilever 32.

[0072] The cantilever piece 32 may be prevented from being displaced into the pillar support hole 27 by coming into contact with the headrest pillar 11 inserted into the pillar support hole 27. This makes it difficult for the headrest guide member 17 to fall off the stay member 13 when the headrest 4 is in use.

[0073] Each headrest guide member 17 is restricted from moving downward relative to the stay member 13 by a downward engaging surface 19B formed near the upper end of the tubular portion 19 abutting against the upper end surface 13B of the stay member 13.

[0074] A downwardly recessed recess (notch) 41 is formed on the upper edge of the side portion 13A of the stay member 13. The recess 41 is located opposite the vicinity of the free end 32B of the cantilever piece 32, faces the release piece 35, and exposes the release piece 35 outward. In other words, the release piece 35 includes a portion that is located at the same vertical position as the recess 41, and is accessible from the outside via the recess 41.

[0075] The locking holes 39 and recesses 41 of the stay member 13 are formed symmetrically in the vertical direction. This prevents incorrect assembly when joining the stay member 13 to the seat back frame 5 even if the stay member 13 is joined to the stay member 13 upside down. As shown in Figure 2, if the vertical length of the locking holes 39 is L1, the vertical length (depth) of the recesses 41 is L2, and the vertical length of the vertical distance between the locking holes 39 and the recesses 41 is L3, then the relationship L1 > L2 > L3 holds.

[0076] When removing the headrest guide member 17 from the stay member 13 during maintenance or disassembly, as shown in Figure 5, insert the tip 45A of the tool 45 between the underside of the enlarged head 21 of the headrest guide member 17 and the cover 7 of the seatback pad 6, and move the tip 45A of the tool 45 close to the upper recess 41 of the stay member 13 while compressing and deforming the seatback pad 6.

[0077] When the tip 45A of the tool 45 is further inserted, the tip 45A of the tool 45 passes through the upper recess 41 of the stay member 13 and comes into contact with the release piece 35 of the cantilever piece 32, pressing the release piece 35 toward the inside of the tubular portion 19.

[0078] This pressure causes the cantilever 32 to elastically deform radially inward of the tubular portion 19, and the steeply inclined surface 33A of the locking claw 33 disengages from the abutment with the upper hole surface 39A of the locking hole 39. This allows the headrest guide member 17 to be pulled out and removed from the stay member 13.

[0079] This operation is performed using the mark 22 as a guide, which improves the reliability with which the tip 45A of the tool 45 passes through the recess 41 on the upper side of the stay member 13 and reaches the release piece 35. This improves the workability of the operation of removing the headrest guide member 17 from the stay member 13.

[0080] The locking claw portion 33 and the release piece portion 35 of the headrest guide member 17 and the locking hole 39 and the recessed portion 41 of the stay member 13 are provided on the side portions of the pair of left and right headrest guide members 17 facing each other, so that even if the skin 7 is damaged by using a tool 45 in the removal work, it is not noticeable.

[0081] Second Embodiment 6 and 7, a plurality of inner ribs 47 extending in the vertical direction are formed on the inner surface 32C of the cantilever 32 of the headrest guide member 17 on the pillar support hole 27 side. The inner ribs 47 extend linearly from near the free end 32B of the cantilever 32, passing through the base end 32A, to the inner surface of the tubular portion 19.

[0082] The inner rib 47 can appropriately increase the rigidity of the cantilever 32, thereby improving the strength and durability of the cantilever 32. The inner rib 47 extends vertically, passing through the base end 32A of the cantilever 32, thereby increasing the rigidity of the cantilever 32.

[0083] The inner rib 47 resiliently abuts against the outer peripheral surface 11A of the headrest pillar 11 inserted into the pillar support hole 27 of the headrest guide member 17. This suppresses radial rattle of the headrest pillar 11 inserted into the pillar support hole 27 relative to the headrest guide member 17.

[0084] <Third embodiment> 8, a groove 50 is formed in the seat back pad 6, recessed downward from the upper surface thereof and connected to the stay receiving hole 8. The groove 50 faces the cantilever piece 32.

[0085] A pad-side rib 52 that protrudes toward the stay member 13 is provided at the boundary between the groove 50 and the stay receiving hole 8 of the seat back pad 6. The groove 50 serves as a passage for the tool 45 when the tip 45A of the tool 45 is brought close to the stay member 13 and the cantilever 32. This allows the tip 45A of the tool 45 to be brought close to the stay member 13 and the cantilever 32 with good workability without damaging the seat back pad 6.

[0086] The pad-side rib 52 suppresses a decrease in rigidity around the stay receiving hole 8 of the seat back pad 6 due to the provision of the groove portion 50.

[0087] Although the specific embodiment has been described above, the present invention is not limited to the above embodiment and can be widely modified and implemented.

[0088] For example, this embodiment can also be applied to a vehicle seat in which the headrest main body 12 is attached to the seat back pad 6 by a single headrest pillar 11. The stay member 13 preferably has a vertically and horizontally symmetrical shape. This ensures that the locking hole 39 is positioned in the appropriate position even if the stay member 13 is connected to the seat back frame 5 in the wrong orientation. [Explanation of symbols]

[0089] 1: Sheet 3: Seat back 4: Headrest 5: Seat back frame 5A: Upper horizontal part 6: Seat back pad 7: Epidermis 8: Stay receiving hole 11: Headrest pillar 12: Headrest body 13: Stay member 13A: Side 15: Guide mounting hole 17: Headrest guide member 19:Cylinder part 19A: Side 19B: Engagement surface 21: Enlarged head 22: Landmark 23: Vertical rib 25: Horizontal rib (first rib) 27: Pillar support hole 31: Slot 32: Cantilever 32A: Proximal end 32B: Free end 32C: Inner surface 33: Locking claw 35: Release piece 37: Outer rib (second rib) 39: Locking hole 39A:Top side 41: Recess 45A:Tip 47: Inner rib 50: Groove 52: Pad side rib

Claims

1. A vehicle seat, a seat back frame that constitutes a framework of a seat back that supports the back of an occupant; a cylindrical stay member attached to the seat back frame and extending in the up-down direction; a headrest guide member having a tubular portion inserted into the stay member and a pillar support hole extending in the vertical direction through the tubular portion; a headrest having a headrest pillar inserted into the pillar support hole, the headrest guide member has a cantilever extending upward from a side portion of the cylindrical portion and elastically deformable toward the inside of the headrest guide member, The cantilever has an outwardly protruding locking claw portion and a release piece portion provided at an upper end, the stay member has a locking hole capable of locking the locking claw portion, The vehicle seat, wherein the release piece portion projects upward from the stay member.

2. A recessed portion recessed downward is provided on the upper edge of the stay member, The vehicle seat according to claim 1, wherein the recessed portion faces the release piece portion.

3. A pair of the stay member and the headrest guide member is provided on the left and right sides, 2. The vehicle seat according to claim 1, wherein the left and right cantilevers and the locking holes are provided on opposing sides of the left and right stay members and the headrest guide members.

4. A slot communicating with the pillar support hole is formed in a side portion of the cylindrical portion, the cantilever extends upwardly within the slot from a lower edge of the slot; 3. The vehicle seat according to claim 1, wherein the outer surface of the tubular portion is provided with a plurality of first ribs extending laterally and a plurality of second ribs connected to the first ribs and extending along the edge of the slot.

5. 5. The vehicle seat according to claim 4, wherein an inner rib extending in the vertical direction is provided on an inner surface of the cantilever piece on the side of the pillar support hole.

6. 6. The vehicle seat according to claim 5, wherein the inner rib passes through a lower end of the cantilever piece and extends to the inner surface of the tubular portion.

7. A seat back pad is supported on the seat back frame, the seat back pad has a stay receiving hole that penetrates vertically and receives the stay member, and a groove that is recessed downward from an upper end surface of the seat back pad and is connected to the stay receiving hole, 3. The vehicle seat according to claim 1, wherein the groove portion faces the release piece portion.

8. 8. The vehicle seat according to claim 7, wherein a pad-side rib protruding toward the stay member is provided at the boundary between the groove and the stay receiving hole.

9. The headrest guide member has an enlarged head portion provided at the upper end of the cylindrical portion, 3. The vehicle seat according to claim 1, wherein a mark indicating the presence of the locking claw is provided on an outer surface of the expanded head portion on the same side as the locking claw.

10. 3. The vehicle seat according to claim 1, wherein when the headrest pillar is inserted into the pillar support hole, the cantilever piece abuts against the headrest pillar, thereby preventing displacement of the cantilever piece into the pillar support hole.

Images