JP2014065337A - Head rest support structure and vehicle seat - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a head rest support structure in which a bracket for supporting a head rest pillar is easily attached to a seat back frame and the bracket is extended from an attachment surface of a guide stay for supporting the pillar to the rear side thereby improving the rigidity, and to provide a vehicle seat.SOLUTION: Each guide stay 40 into which a pillar 14 of a head rest is inserted and supporting a head rest S3 is fixed to a seat back frame 1 of a vehicle seat S by a head rest support member 30. The head rest support member 30 includes: a stay attachment part 31 to which the guide stay 40 is attached; and frame attachment parts 32, 35, 36 attached to the seat back frame 1. The frame attachment part extends from the stay attachment part 31 toward the rear side of the seat back frame 1 and is attached to at least one of an upper surface and a lower surface of the seat back frame 1.

Description

  The present invention relates to a headrest support structure and a vehicle seat, and more particularly to a headrest support structure and a vehicle seat that fix a bracket that supports a headrest pillar to a seat back frame.

In general, a headrest of a vehicle seat has a headrest pillar support bracket fixed to a seatback frame in the seatback, and a support guide is inserted and fixed to the support bracket. The headrest pillar is vertically adjusted to the support guide. By being inserted and possible, the structure is supported by the seat back.
In such a general headrest support structure, it is difficult to finely adjust the position of the support bracket in accordance with the shape of the seat back or the headrest.
Therefore, a technique has been proposed in which an intermediate bracket is interposed between the support bracket and the seat back frame so that the position of the support bracket in the front-rear direction relative to the seat back frame can be easily adjusted (for example, Patent Document 1). .

Patent Document 1 is a headrest support device that includes a stay support bracket that is fixed to a seatback frame and supports a headrest by inserting a headrest stay, and a recess is provided at the headrest installation position of the seatback frame. A substantially U-shaped opening bracket having an opening opened in a direction opposite to the recess side is attached to the recess, and a stay support bracket is attached to the opening of the opening bracket.
According to the invention of Patent Document 1, if the stay support bracket is adjusted in the front-rear direction within the opening bracket and then fixed to the opening bracket by welding, the position of the headrest in the front-rear direction corresponds to the design change of the headrest. Can be set arbitrarily. Therefore, only one type of mold for forming the opening bracket needs to be prepared, and the mold cost can be greatly reduced.

JP 2011-144 A

However, in the invention of Patent Document 1, since the stay support bracket is fixed by welding to a predetermined position from the opening side of the opening bracket, only the side surface of the stay support bracket is supported by the side surface of the opening bracket. The rear surface of the stay support bracket where the force is applied is not supported, and the mounting rigidity between the stay support bracket and the seat back frame is low.
Further, in the invention of Patent Document 1, in order to attach the opening bracket, a recess is formed in the seat back frame, and it is necessary to process the seat back frame itself.
Patent Document 1 discloses a conventional technique in which the rear surface of the stay support bracket is supported by an opening bracket. However, in this technique, the opening bracket is located on the left and right outside of the mounting surface of the stay support bracket. The support rigidity was low because it extended rearward from.

  The present invention has been made in view of the above problems, and an object of the present invention is to easily mount the bracket supporting the headrest pillar to the seat back frame, and at the same time, to guide the bracket to the pillar. An object of the present invention is to provide a headrest support structure and a vehicle seat having increased rigidity by extending rearward from a stay mounting surface.

  According to the headrest support structure of claim 1, the problem is that the headrest guide stay that supports the headrest is inserted into the seatback frame constituting the seatback of the vehicle seat by inserting the pillar of the headrest. A headrest support structure fixed by a headrest support member, wherein the headrest support member includes a stay attachment portion to which the guide stay is attached, and a frame attachment portion to be attached to the seat back frame, The problem is solved by extending toward the rear of the seat back frame from the stay attaching portion and attaching to at least one of the upper surface and the lower surface of the seat back frame.

  Thus, the frame mounting portion extends from the stay mounting portion toward the rear of the seat back frame and is attached to at least one of the upper surface and the lower surface of the seat back frame. At the protruding position, the headrest support member can be attached to the seat back frame, and the attachment rigidity can be improved.

At this time, it is preferable that the frame attachment portion bends from the upper end of the stay attachment portion and extends toward the rear of the seat back frame.
In this way, the upper portion of the headrest support member is configured as a portion that is bent from the upper end of the stay mounting portion and reaches the frame mounting portion, and the rear surface of the guide stay can be supported by this portion, so that the support rigidity of the guide stay can be improved. .

At this time, as in claim 3, the stay mounting portion includes a stay mounting surface having a shape along the outer surface of the guide stay on the seat back frame side, and is sandwiched between the guide stay and the seat back frame. Preferably, the position where the guide stay is attached to the stay attachment portion on the stay attachment surface and the position where the stay attachment portion abuts on the seat back are arranged adjacent to each other on the same plane. is there.
Since it comprises in this way, even when a big load is applied to a headrest, the headrest can be supported stably, suppressing the enlargement of a headrest support member.

At this time, as described in claim 4, the frame attachment portion includes an upper extension portion and a lower extension portion that are bent from an upper end and a lower end of the stay attachment surface and extend to the seat back frame side, respectively. Preferably, the upper extension part and the lower extension part sandwich the seat back frame between the upper extension part and the lower extension part.
Since it comprises in this way, while the rigidity of a headrest support member improves, the attachment rigidity of the headrest support member to a seat back frame also improves.

At this time, it is preferable that the width of the stay mounting surface in the sheet width direction is larger than the width of the guide stay in the sheet width direction.
With this configuration, the mounting rigidity between the headrest support member and the guide stay is improved.

At this time, it is preferable to provide a positioning portion used when attaching the headrest support member to the seat back frame.
Since it comprises in this way, positioning of a headrest support member becomes easy and workability | operativity improves further.

At this time, as described in claim 7, the headrest support member supports the pillar via a support guide, the support guide is an outer peripheral surface, and the guide stay is welded to the support member. It is preferable to provide a recess at a position facing the location.
Since it comprises in this way, even if it has the influence of welding, since it can absorb with a recessed part, it can suppress that the attachment property of the pillar of a headrest falls by the thermal distortion of welding.

At this time, as in claim 8, the left and right stay attaching portions respectively attached to the left and right guide stays fixed to the seat back frame and the left and right stay attaching portions are provided. Is preferred.
Since it comprises in this way, the headrest support member for attaching a pair of left and right guide stays can be constituted as one body, the number of parts can be reduced, and the rigidity of the headrest support member is improved.

At this time, as in a ninth aspect of the present invention, it is preferable that the left and right connecting portions include a recess or a hole that penetrates the left and right connecting portions in the thickness direction.
Since it comprises in this way, a headrest support member can be reduced in weight.

At this time, as in claim 10, the stay attaching portions are a stay upper attaching portion and a stay lower attaching portion that are attached to the guide stay above and below the seat back frame, respectively. It is preferable that an upper and lower connecting portion for connecting the stay lower attaching portion is provided, and the upper and lower connecting portion is attached to the seat back frame.
Since it comprises in this way, the rigidity of a headrest support member improves significantly and the still more stable support of a headrest is attained.

At this time, as in the eleventh aspect, it is preferable that the upper and lower connecting portions include a welding attachment hole that penetrates the upper and lower connecting portions in the thickness direction.
Since it comprises in this way, a headrest support member and a seat back frame can be fixed by welding by a hole, and the attachment rigidity of a headrest support member improves further.

  According to the vehicle seat of claim 12, the problem is that the seat back frame constituting the seat back of the vehicle seat and the pillar of the headrest are inserted, so that the headrest guide stay that supports the headrest is inserted. A vehicle seat including a headrest support member fixed to the seatback frame, the frame mounting portion being attached to the seatback frame, wherein the frame mounting portion is connected to the seatback from the stay mounting portion. The problem is solved by extending toward the rear of the frame and being attached to at least one of the upper and lower surfaces of the seat back frame.

  Thus, the frame mounting portion extends from the stay mounting portion toward the rear of the seat back frame and is attached to at least one of the upper surface and the lower surface of the seat back frame. At the protruding position, the headrest support member can be attached to the seat back frame, and the attachment rigidity can be improved.

  According to the first aspect of the present invention, the frame attaching portion extends from the stay attaching portion toward the rear of the seat back frame and is attached to at least one of the upper surface and the lower surface of the seat back frame. The headrest support member can be attached to the seat back frame at a position protruding from the attachment surface of the part, and the attachment rigidity can be improved.

  According to the second aspect of the present invention, the upper portion of the headrest support member is configured as a portion that is bent from the upper end of the stay mounting portion and reaches the frame mounting portion, and this portion can support the rear surface of the guide stay. Support rigidity can be improved.

  According to the invention of claim 3, the headrest can be stably supported even when a large load is applied to the headrest while suppressing an increase in size of the headrest support member.

According to the invention of claim 4, the rigidity of the headrest support member is improved, and the mounting rigidity of the headrest support member to the seat back frame is also improved.
According to the invention of claim 5, the mounting rigidity between the headrest support member and the guide stay is improved.

According to the invention of claim 6, the positioning of the headrest support member is facilitated, and the workability is further improved.
According to the seventh aspect of the present invention, even if there is an influence of welding, it can be absorbed by the concave portion, so that it is possible to suppress deterioration of the mounting properties of the headrest pillar due to thermal distortion of welding.

  According to the eighth aspect of the present invention, the headrest support member for attaching the pair of left and right guide stays can be integrally formed, the number of parts can be reduced, and the rigidity of the headrest support member is improved.

According to invention of Claim 9, a headrest support member can be reduced in weight.
According to the invention of claim 10, the rigidity of the headrest support member is greatly improved, and the headrest can be supported more stably.

  According to the eleventh aspect of the present invention, the headrest support member and the seat back frame can be fixed by welding at the hole, and the mounting rigidity of the headrest support member is further improved.

  According to the invention of claim 12, since it extends from the stay mounting portion toward the rear of the seat back frame and is attached to at least one of the upper surface and the lower surface of the seat back frame, At the protruding position, the headrest support member can be attached to the seat back frame, and the attachment rigidity can be improved.

1 is an external view of a vehicle seat according to an embodiment of the present invention. 1 is an external view of a seat frame of a vehicle seat according to an embodiment of the present invention. It is a section explanatory view showing the state where the guide stay which supports a headrest pillar and a support guide was fixed to the upper frame via the bracket concerning one embodiment of the present invention. It is principal part explanatory drawing which shows the state which fixed the guide stay to the upper frame via the bracket which concerns on one Embodiment of this invention. It is a perspective view of the bracket concerning one embodiment of the present invention. It is a perspective explanatory view showing a state where a guide stay is fixed to an upper frame via a bracket according to another embodiment of the present invention. It is AA sectional drawing of FIG. FIG. 9 is a cross-sectional view taken along the line AA of FIG. 6 according to still another embodiment of the present invention, and is a modification in which the upper frame is not crushed.

Hereinafter, a vehicle seat and a seat frame of the vehicle seat according to an embodiment of the present invention will be described with reference to FIGS.
FIG. 1 is an external view of a vehicle seat according to an embodiment of the present invention. FIG. 2 is an external view of a seat frame of a vehicle seat according to an embodiment of the present invention. FIG. 3 is an explanatory cross-sectional view illustrating a state in which a guide stay that supports the headrest pillar and the support guide is fixed to the upper frame via the bracket according to the embodiment of the present invention. FIG. 4 is a main part explanatory view showing a state in which the guide stay is fixed to the upper frame through the bracket according to the embodiment of the present invention. FIG. 5 is a perspective view of a bracket according to an embodiment of the present invention. FIG. 6 is an explanatory perspective view showing a state in which the guide stay is fixed to the upper frame via a bracket according to another embodiment of the present invention. FIG. 7 is a cross-sectional view taken along the line AA of FIG. FIG. 8 is a cross-sectional view taken along the line AA of FIG. 6 according to still another embodiment of the present invention, and is a modification in which the upper frame is not crushed.

  As shown in FIG. 1, the vehicle seat S according to the present embodiment includes a seat back S1, a seat portion S2, and a headrest S3. The seat back S1 and the seat portion S2 are cushioned on a seat frame (not shown). The pads 1a and 2a are placed and covered with the skin materials 1b and 2b. The headrest S3 is formed by covering a core material (not shown) with a pad material 3a and covering with a skin material 3b, and is supported by the headrest pillar 14.

  The seat back S1 mounts the cushion pad 1a on the seat back frame 1, is covered with a skin material 1b from above the cushion pad 1a, and supports the back of the occupant from the rear. As shown in FIG. 2, the seat back frame 1 includes a pair of side frames 20 that are spaced apart from each other and extend in the vertical direction, an upper frame 11 that connects the upper ends of the pair of side frames 20, and a lower end The frame is constituted by a lower frame 12 connecting the parts.

The side frame 20 is formed by pressing a sheet metal, and is formed of a substantially D-shaped substantially plate body in which a front end side is curved and a lower portion of the front end projects forward.
The upper frame 11 is made of a pipe-like body, extends in the seat width direction and constitutes the upper portion of the seat back frame 1, and both ends of the upper frame portion 11a are bent vertically and extend downward. And the upper frame side portion 11b.

A guide stay 40 that supports a support guide 15 that supports the headrest pillar 14 is provided on the upper frame portion 11a via a bracket 30 as a headrest support member.
As shown in FIGS. 2 and 3, the headrest pillar 14 is composed of a pair of metal rods.
The support guide 15 is a member obtained by molding a synthetic resin into a cylindrical shape, and is provided integrally with a cylindrical portion 15 a capable of storing the headrest pillar 14 inside and the cylindrical portion, and is inserted into the guide stay 40. And a head 15b exposed above the upper end of the guide stay 40.
As shown in FIG. 3, a recess 15 c is provided on the outer surface of the support guide 15. The recess 15 c faces the position where the rear surface 41 of the guide stay 40 is welded to the bracket 30.
As shown in FIG. 4, the headrest pillar 14 is inserted into and fixed to a cylindrical support guide 15, and the support guide 15 is inserted into and fitted into a cylindrical guide stay 40.

As shown in FIGS. 2 and 3, the guide stay 40 has a substantially rectangular tube shape formed by winding a metal plate by bending, and includes a rear surface 41 behind the seat.
The bracket 30 is formed by bending a metal plate into a U-shaped cross section (U-shape). As shown in FIGS. 2 to 5, the flat plate-like stay attaching portion 31 and the upper and lower ends of the stay attaching portion 31 are provided. It consists of a flat plate-like upper extending portion 35 and a lower extending portion 36 that are bent vertically and extend rearward of the seat.
In the stay attachment portion 31, the surface on which the upper extension portion 35 and the lower extension portion 36 extend constitutes a frame front attachment surface 32 to which the surface of the upper frame portion 11a on the seat front side is fixed by welding. The opposite surfaces of the upper extending portion 35 and the lower extending portion 36 on the extending side constitute a stay mounting surface 33 to which the seat rear surface of the guide stay 40 is fixed by welding. The stay mounting surface 33 corresponds to a stay mounting portion in the claims.
In the present embodiment, the upper extension portion 35 and the lower extension portion 36 are flat and extend vertically bent from both the upper and lower ends of the stay mounting portion 31. However, the present invention is not limited to this. Instead, for example, the stay mounting portion 31 may extend from both upper and lower ends with an acute angle or an obtuse angle with respect to the stay mounting portion 31. Moreover, it may be bent again so that it may extend from the upper and lower ends of the stay attaching part 31, and may surround the curved surface of the upper frame part 11a.
Moreover, you may comprise the stay attaching part 31, the upper side extension part 35, and the lower side extension part 36 as a shape which curves along the curved surface of the upper frame part 11a. For example, the cylindrical body may have a shape cut along the axial direction.

The distance between the upper extending portion 35 and the lower extending portion 36 is equal to the vertical diameter of the outer surface of the upper frame portion 11a of the upper frame 11, and the bracket 30 is attached to the upper frame portion 11a of the upper frame 11. When attached to the upper frame portion 11a, the upper frame portion 11a can be sandwiched between the upper extension portion 35 and the lower extension portion 36.
The stay attaching portion 31 is provided with a pair of semicircular cutout portions 34 at the center in the vertical direction at both ends in the width direction. When the bracket 30 is welded to the upper frame portion 11a, the cutout portion 34 is used for locking a positioning pin for welding and positioning at the time of welding.
The bracket 30 is welded to the upper frame portion 11a along the width direction of the stay mounting portion 31 at the center in the vertical direction of the stay mounting portion 31, that is, on the horizontal plane P in FIG. It is located on the extension line of the weld bead of the bracket 30 and the upper frame part 11a. As positioning at the time of welding, you may provide a recessed part and a hole instead of the notch part 34. FIG.
The thickness of the bracket 30 is formed thinner than the thickness of the guide stay 40 and the upper frame portion 11a. Thereby, the enlargement in the front-rear direction is suppressed, and at the same time, the processing of the bracket 30 is facilitated.
In addition, in this embodiment, although the bracket 30 is provided for every guide stay 40, you may comprise from a shape in which a pair of bracket 30 was connected by the right-and-left connection part, and was formed integrally.

Next, attachment of the guide stay 40 to the upper frame portion 11a via the bracket 30 will be described.
As shown in FIGS. 2 and 4, brackets 30 are attached to the upper frame portion 11 a at two locations without being crushed in the shape of a pipe.
The center of the frame front surface mounting surface 32 of the bracket 30 in the vertical direction and the front surface of the upper frame portion 11a are in contact with each other. In addition, when the end portion 35a of the upper extension portion 35 of the bracket 30 and the upper surface of the upper frame portion 11a are in contact with each other, the sheet width direction along the end portion 35a is in this contact position. The end portion 36a behind the seat of the lower extension portion 36 of the bracket 30 and the lower surface of the upper frame portion 11a are in contact with each other at the abutted position along the end portion 36a. Are fixed by welding in the sheet width direction.
On the rear side from the upper end and the lower end (vertex) of the upper frame portion 11a, a welded portion of the upper frame portion 11a and the upper extension portion 35 and the lower extension portion 36a of the bracket 30 is provided. As a result, the bracket 30 comes into contact with the apex of the upper frame portion 11a, thereby enabling more stable support.
The cylindrical upper frame portion 11a and the guide stay 40 are in contact with the bracket 30 between the upper extending portion 35 and the lower extending portion 36 in the height direction, and stable support is possible. .

Further, the stay mounting surface 33 and the rear surface 41 are welded along the upper end and the lower end of the stay mounting surface 33 in a state where the stay mounting surface 33 of the bracket 30 and the rear surface 41 of the guide stay 40 are in contact with each other. ing. The welding position is shown as a weld bead W in FIG. The stay mounting surface 33 and the rear surface 41 are welded in the vertical direction along the left and right ends of the rear surface 41 of the guide stay 40.
The welding between the stay mounting surface 33 and the rear surface 41 is preferably performed so that the weld bead W protrudes beyond the region where the stay mounting surface 33 and the rear surface 41 abut. That is, as shown in FIG. 3, when the weld bead W is welded so that the width of the bracket 30 is larger than the region where the bracket 30 supports the upper frame portion 11a, the support rigidity of the guide stay 40 is improved. is there.

As shown in FIG. 3, the outer surface of the support guide 15 is provided with a recess 15 c, so that a minute projection is generated due to thermal distortion at a portion where the stay mounting surface 33 and the rear surface 41 are welded. Even if it exists, the influence can be absorbed by the recessed part 15c, and rattling etc. of the support guide 15 and the guide stay 40 can be prevented.
The guide stay 40, the stay mounting surface 33, and the portion of the front surface of the upper frame portion 11a closest to the stay mounting surface 33 are disposed on the same horizontal plane P as shown in FIG. Further, the place where the upper frame portion 11a and the bracket 30 are welded and the place where the bracket 30 and the guide stay 40 abut are arranged on the same vertical plane orthogonal to the longitudinal direction of the upper frame 11, and thus more stable. Support is possible.
Further, the bracket 30 is attached to the upper frame portion 11a at the same height as the upper end and the lower end of the portion where the guide stay 40 and the bracket 30 abut, and the rotation of the guide stay 40 can be suppressed. .

In the present embodiment, since the bracket 30 is formed in a U-shaped cross section, a load applied to the headrest S3 can be stably received.
When a load from an occupant is applied to the headrest S3, the headrest S3 receives a load in a direction of moving backward. At this time, the load applied from the upper part of the guide stay 40 to the upper frame part 11 a can be received by the upper extension part 35 of the bracket 30. Further, when the load is applied to the upper frame portion 11a, a force is generated so that the upper frame portion 11a moves downward. This force can be received by the lower extension portion 36 of the bracket 30. As a result, the bracket 30 can stably receive the load applied to the headrest S3.

Moreover, you may use the bracket 50 shown in FIG. 6, FIG. 7 instead of the bracket 30 of FIGS.
As shown in FIG. 7, the bracket 50 is attached to a location where a concave surface 11c provided on the front surface of the upper frame portion 11a is formed by crushing.
As shown in FIGS. 6 and 7, the bracket 50 is formed by bending a metal plate, and is bent at an obtuse angle from the upper and lower ends of the flat frame rear surface mounting portion 52 and the frame rear surface mounting portion 52 and extends. The flat plate-like upper extension portion 55 and lower extension portion 56 and the upper extension portion 55 and the lower extension portion 56 are bent at an acute angle so as to spread in the vertical direction from the end portions in the left-right direction. The upper stay mounting portion 51 and the lower stay mounting portion 53 are provided. The upper extending portion 55, the lower extending portion 56, and the frame rear surface mounting portion 52 correspond to the upper and lower connecting portions and the left and right connecting portions in the claims.
The rear surface of the upper frame portion 11a is fixed to the surface of the frame rear surface attachment portion 52 on the side where the upper extension portion 55 and the lower extension portion 56 extend, and the frame rear surface attachment portion 52 of the stay upper attachment portion 51 is reversed. The surface on the side is fixed to the upper part of the rear surface of the pair of guide stays 40, and the surface on the opposite side of the frame rear surface mounting part 52 of the stay lower mounting part 53 is fixed to the lower part of the rear surface of the pair of guide stays 40. .
As shown in FIG. 6, the frame rear surface mounting portion 52 is formed with a hole 57 that penetrates the frame rear surface mounting portion 52 in the thickness direction.

The upper extending portion 55 and the lower extending portion 56 sandwich the upper frame portion 11a between the upper extending portion 55 and the lower extending portion 56 when the bracket 50 is attached to the upper frame portion 11a. The surfaces of the upper extension portion 55 and the lower extension portion 56 on the stay upper mounting portion 51 side are configured to contact the upper surface and the lower surface of the upper frame portion 11a.
The upper extension portion 55 and the lower extension portion 56 are ends on the opposite side of the frame rear surface attachment portion 52, and a portion between the pair of stay upper attachment portions 51 or stay lower attachment portions 53 is cut away. It has become. With this configuration, the weight of the bracket 50 is reduced, and the stay upper mounting portion 51 or the stay lower mounting portion 53 is easily positioned.
In addition, a hole 58 is provided between the holes 57 of the frame rear surface mounting portion 52 so that the weight of the bracket 50 is reduced. Instead of the hole 58, a recess that does not penetrate the frame rear surface mounting portion 52 may be provided.

Next, attachment of the guide stay 40 to the upper frame portion 11a via the bracket 50 will be described.
The upper frame portion 11a has a concave surface 11c formed by crushing at a location where the bracket 50 is attached.
The center in the vertical direction of the frame rear surface mounting portion 52 of the bracket 50 and the rear surface of the upper frame portion 11 a are in contact with each other, and are fixed by welding at the holes 57.
The upper ends of the pair of stay upper mounting portions 51 or the stay lower mounting portions in a state where the pair of stay upper mounting portions 51 and the pair of stay lower mounting portions 53 of the bracket 30 are in contact with the rear surface 41 of the guide stay 40. It is welded along the lower end of 53.
As shown in FIG. 7, the lower surface of the upper extension portion 55 of the bracket 50 and the upper surface of the upper frame portion 11a abut, the lower surface of the lower extension portion 56 of the bracket 50, and the upper surface of the upper frame portion 11a. Are in contact. Further, the concave surface 11 c of the upper frame portion 11 a is in contact with the rear surface 41 of the guide stay 40.
In the example of FIG. 7, the bracket 50 is attached at a location where the upper frame portion 11 a is crushed, but it may be attached to the upper frame portion 11 a that is not crushed as shown in FIG. 8. Good.

DESCRIPTION OF SYMBOLS S Vehicle seat S1 Seat back S2 Seat part S3 Headrest P Horizontal surface W Welding bead 1 Seat back frame 1a, 2a Cushion pad 1b, 2b Skin material 3a Pad material 3b Skin material 11 Upper frame 11a Upper frame part 11b Upper frame side part 11c Concave surface 12 Lower frame 14 Headrest pillar 15 Support guide 15a Tubular portion 15b Head portion 15c Recess 20 Side frame 30, 50 Bracket 31 Stay attachment portion 32 Front frame attachment surface 33 Stay attachment surface 34 Notch portions 35, 55 Upper extension portion 35a, 36a End portions 36, 56 Lower extension portion 40 Guide stay 41 Rear surface 51 Stay upper mounting portion 52 Frame rear surface mounting portion 53 Stay lower mounting portion 57, 58 Hole

Claims (12)

A headrest support structure for fixing a headrest guide stay supporting the headrest to a seatback frame constituting a seatback of a vehicle seat by a headrest support member by inserting a pillar of the headrest,
The headrest support member includes a stay attachment portion to which the guide stay is attached, and a frame attachment portion to be attached to the seat back frame,
The headrest support structure, wherein the frame attaching portion extends from the stay attaching portion toward the rear of the seat back frame and is attached to at least one of an upper surface and a lower surface of the seat back frame.   The headrest support structure according to claim 1, wherein the frame attachment portion is bent from an upper end of the stay attachment portion and extends toward the rear of the seat back frame. The stay mounting portion includes a stay mounting surface having a shape along an outer surface of the guide stay on the seat back frame side, and is disposed between the guide stay and the seat back frame.
The position where the guide stay is attached to the stay attachment portion on the stay attachment surface and the position where the stay attachment portion abuts on the seat back are arranged adjacent to each other on the same plane. Item 3. A headrest support structure according to item 1 or 2. The frame attachment portion includes an upper extension portion and a lower extension portion that are bent from the upper end and the lower end of the stay attachment surface and extend to the seat back frame side, respectively.
4. The headrest support structure according to claim 3, wherein the upper extension part and the lower extension part sandwich the seat back frame between the upper extension part and the lower extension part.   The headrest support structure according to claim 3 or 4, wherein a width of the stay mounting surface in a sheet width direction is larger than a width of the guide stay in the sheet width direction.   The headrest support structure according to any one of claims 1 to 5, further comprising a positioning portion used when the headrest support member is attached to the seat back frame. The headrest support member supports the pillar via a support guide,
The headrest support structure according to any one of claims 1 to 6, wherein the support guide is provided with a recess at a position facing an outer peripheral surface of the support stay where the guide stay is welded to the support member.   The left and right stay attaching portions respectively attached to the left and right guide stays fixed to the seat back frame, and the left and right stay attaching portions connecting the left and right stay attaching portions. Or a headrest support structure as described above.   The headrest support structure according to any one of claims 1 to 8, wherein the left and right connecting portions include a recessed portion or a hole that penetrates the left and right connecting portions in a thickness direction. The stay attaching portion is a stay upper attaching portion and a stay lower attaching portion that are attached to the guide stay above and below the seat back frame, respectively.
An upper and lower connecting portion for connecting the stay upper mounting portion and the stay lower mounting portion;
The headrest support structure according to claim 1, wherein the upper and lower connecting portions are attached to the seat back frame.   The headrest support structure according to claim 10, wherein the upper and lower connecting portion includes a hole portion for welding attachment that penetrates the upper and lower connecting portion in a thickness direction. A seat back frame constituting a seat back of a vehicle seat;
A headrest support member that fixes a headrest guide stay that supports the headrest to the seatback frame by inserting a pillar of the headrest, and a vehicle seat,
The headrest support member includes a stay attachment portion to which the guide stay is attached, and a frame attachment portion to be attached to the seat back frame,
The vehicle seat, wherein the frame attachment portion extends from the stay attachment portion toward the rear of the seat back frame and is attached to at least one of an upper surface and a lower surface of the seat back frame.

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