Headrest

Abstract

To provide a headrest which can suppress the generation of a crease of a top plate cover part.SOLUTION: A headrest 1 has a headrest cover 12 having a top plate cover part 12A which is supported from a rear part of a seat so that a supporting frame 22A extending in a seat lateral direction by a headrest stay 20 via a headrest pad 11 becomes a frame in the lowest position. The top plate cover part 12A has: an extension portion 12C extending so as to hang out to a seat lower part rather than the supporting frame 22A; and a bent portion 12D bent along the supporting frame 22A when receiving a force for bending the extension portion 12C in a seat fore-and-aft direction together with the headrest pad 11 with the supporting frame 22A as a fulcrum. A sewing part S in which cover pieces (C1, C2) constituting the top plate cover part 12A are in-stitch sewed along a seat width direction is formed in the bent portion 12D.SELECTED DRAWING: Figure 3

Description

Technical Field

[0001] The present invention relates to a headrest. Specifically, it relates to a headrest having a headrest stay, a headrest pad covering the headrest stay, and a headrest cover covering the headrest pad.

Background Art

[0002] Patent Document 1 discloses a headrest mounted on the upper part of the seat back of a rear seat. This headrest has an L-shaped (saddle-shaped) configuration that is stored in a manner covering along the upper and front parts of the seat back by lowering the mounting position with respect to the seat back. By this storage, the headrest can be stored with respect to the seat back in a state where a wide rear view can be secured.

Prior Art Documents

Patent Documents

[0003]

Patent Document 1

Summary of the Invention

Problems to be Solved by the Invention

[0004] In the above prior art, the portion extending forward and downward of the headrest becomes thin. Therefore, when the user pulls up the headrest and applies an upward force from below to this thin portion, or applies the load of the occupant's head to this portion, this thin portion is easily bent back and forth and wrinkles are likely to occur in the top plate cover portion. Therefore, the present invention provides a headrest capable of suppressing the occurrence of wrinkles in the top plate cover portion.

Means for Solving the Problems

[0005] As a means of solving the above problems, the headrest of the present invention takes the following measures. That is, the headrest has a headrest stay having a support frame extending in the seat width direction, a headrest pad that is placed over the headrest stay, and a headrest cover that is placed over the headrest pad and has a top cover portion that is supported from the rear of the seat by the headrest stay via the headrest pad so that the support frame becomes the lowest position frame. The top cover portion has an extended portion that extends below the seat beyond the support frame, and a bent portion that is bent along the support frame by receiving a force that bends the extended portion together with the headrest pad in the front-rear direction of the seat with the support frame as the pivot point. A seam is formed in the bent portion where the cover piece constituting the top cover portion is sewn with an institch along the seat width direction.

[0006] With the above configuration, even if the extended portion of the top cover is subjected to a bending force in the front-to-back direction of the seat together with the headrest pad, causing the folded portion to bend in a valley fold or mountain fold along the support frame, only the groove-shaped stitching portion that is pre-formed in the folded portion will deform first. Therefore, it is possible to effectively suppress the occurrence of creases in areas other than the stitching portion of the top cover.

[0007] Furthermore, the headrest of the present invention may be configured as follows: The seam is formed by sewing together a first cover piece of the main body portion that extends above the seat above the support frame of the top cover portion and a second cover piece of the extended portion, and these seam allowances are short in length so that they extend straight from the front of the seat and abut against the headrest pad without being folded open.

[0008] With the above configuration, compared to a configuration in which each seam allowance is folded open, the lines of each seam allowance are less likely to stand out as highlight lines on the top cover. Therefore, it is possible to more effectively suppress the occurrence of creases in areas other than the seams of the top cover.

[0009] Furthermore, the headrest of the present invention may be configured as follows: The headrest pad is integrally foam-molded with the headrest cover and the headrest stay. The headrest further includes an adhesive film that is attached to the top plate cover portion so as to cover each seam allowance from the back side of the cover, preventing the foam resin material of the headrest pad from impregnating between each seam allowance.

[0010] According to the above configuration, even if the headrest is integrally foam-molded, each short seam allowance can be kept extended so that it properly abuts straight against the headrest pad from the front of the seat.

[0011] Furthermore, the headrest of the present invention may be configured as follows: The support frame is configured to extend in a round rod shape in the seat width direction. The stitching portion is provided at a position lower than the protruding line, along the protruding line that protrudes most far forward from the seat on the support frame.

[0012] With the above configuration, when the extended portion of the top cover is pressed against the rear or front of the seat and the bent portion is bent with the support frame as the pivot point, the bending stress can be more appropriately concentrated at the seam, allowing the seam to be deformed.

[0013] Furthermore, the headrest of the present invention may be configured as follows: The headrest has a saddle-type structure that supports the occupant's head with a cushion structure that is inverted L-shaped when viewed from the side.

[0014] According to the above configuration, even if the thin portion extending downward and forward of the saddle-shaped headrest is bent in the front-to-back direction of the seat, it is possible to appropriately prevent creases from forming on the top cover. Furthermore, for example, when lifting the saddle-shaped headrest from a stored position along the top and front of the seatback, applying an upward force from below to the thin portion can cause the thin portion to bend forward of the seat, thus appropriately preventing creases from forming on the top cover.

[0015] Furthermore, the headrest of the present invention may be configured as follows: The headrest stay comprises a stay body made of a round bar-shaped member and a wire made of a round bar-shaped member having a smaller diameter than the stay body. The stay body comprises a pair of legs extending downward from the headrest pad to the seat and a connecting portion extending in a U-shape in plan view from the upper ends of the pair of legs to connect them within the headrest pad toward the front of the seat. The wire is joined to the connecting portion that spans the U-shape in the seat width direction and extends downward from the connecting portion within the headrest pad to the seat. The support frame is made of wire.

[0016] According to the above configuration, a support frame is set in the thin part of the headrest pad through which a small-diameter wire passes, and even if the folding part of the top cover is easily bent, it is possible to appropriately suppress the occurrence of creases in parts of the top cover other than the stitched parts. [Brief explanation of the drawing]

[0017] [Figure 1] This is a perspective view showing the schematic configuration of the headrest according to the first embodiment. [Figure 2] This is a front view of Figure 1. [Figure 3] This is a cross-sectional view taken along line III-III in Figure 2. [Figure 4] This is an enlarged view of the main part of Figure 3. [Modes for carrying out the invention]

[0018] The embodiments for carrying out the present invention will be described below with reference to the drawings.

[0019] 《First Embodiment》 (Overall configuration of headrest 1) First, the configuration of the headrest 1 according to the first embodiment of the present invention will be described with reference to FIGS. 1 to 4. In the following description, when indicating directions such as front and rear, up and down, left and right, etc., the respective directions shown in each figure shall be referred to. Also, in the following description, when no specific reference figure is shown, or when there is no reference numeral corresponding to the reference figure, any one of FIGS. 1 to 4 shall be appropriately referred to.

[0020] As shown in FIG. 1, the headrest 1 according to the present embodiment is applied to the rear seat of an automobile. Specifically, the headrest 1 is attached to the upper part of the seat back 2 of the rear seat. The headrest 1 includes a headrest main body 10 that elastically supports the head of a passenger sitting on the rear seat from behind the seat, and a headrest stay 20 that supports the headrest main body 10.

[0021] The headrest main body 10 has a headrest pad 11 made of foamed urethane and a headrest cover 12 made of synthetic leather that covers the headrest pad 11. Note that the headrest cover 12 may be made of fabric. The headrest stay 20 has a stay main body 21 provided with a pair of left and right legs 21A extending downward from the headrest main body 10 below the seat. Further, the headrest stay 20 has a wire 22 that is joined to the front part of the stay main body 21 within the headrest pad 11 and is assembled in a substantially inverted trapezoidal shape when viewed from the front and extends downward in a hanging manner below the seat.

[0022] The headrest 1 is attached to the upper part of the seat back 2 by inserting each leg 21A of the stay main body 21 into corresponding insertion holes (not shown) formed in the upper part of the seat back 2 from above the seat. Specifically, the headrest 1 is attached so that its mounting position with respect to the seat back 2 can be changed in the height direction by an operation of changing the insertion depth of each leg 21A.

[0023] Specifically, the headrest 1 is designed so that its mounting position on the seatback 2 can be changed between a position where the headrest body 10 is pushed down to overlap the top of the seatback 2 (shown position) and a position where the headrest body 10 is pulled up from the top of the seatback 2 (not shown). In the pulled-up position, the headrest 1 is locked in place by a claw (not shown) provided in one of the insertion holes of the seatback 2 elastically hooking into a groove (not shown) in the corresponding leg portion 21A of the stay body 21.

[0024] Furthermore, the headrest 1 is released from the locked state by the user pushing a knob (not shown) located on the top of the seatback 2 from the side. This releases the headrest 1 from the locked state by the user pushing it from above the seat, allowing the headrest body 10 to be pushed down to a position where it overlaps with the top of the seatback 2.

[0025] The headrest 1 described above is configured to have a cushion structure that is inverted L-shaped (saddle-shaped) in side view, which is stored so that it overlaps the top and front of the seat back 2 when the headrest body 10 is pushed down to a position where it overlaps the top of the seat back 2. Specifically, the headrest body 10 has a cushion structure that is inverted L-shaped (saddle-shaped) in side view, having an upper part 10A of the body that is positioned overlapping the top of the seat back 2 and a front part 10B of the body that is positioned overlapping the front of the seat back 2 when it is pushed down (see Figures 2 to 3).

[0026] With this configuration, the headrest body 10 is designed to provide a wide top plate (front section) for supporting the occupant's head, while also minimizing the protrusion from the seat back 2 upwards when stowed, thereby ensuring a wide rearward view. When the headrest body 10 is used by being pulled up from the top of the seat back 2, the front section 10B of the body is locked in place at a position higher than the seat back 2.

[0027] Therefore, the headrest body 10 has the characteristic that the thin, plate-like portion extending downward from the front part 10B of the body is easily pressed and bent towards the rear of the seat when subjected to a load from the occupant's head. In addition, when the headrest body 10 is pulled up from the above-mentioned storage position, if the user applies an upward force from below to the thin portion of the front part 10B of the body, it is easily bent by being pulled forward of the seat.

[0028] Specifically, the front part 10B of the headrest body 10 flexes so as to bend in a mountain or valley fold shape toward the rear or front of the seat, with the support frame 22A, which is the lowest frame of the wire 22 inside it, as the pivot point. If creases form in the top cover portion 12A of the headrest cover 12 that covers the top portion of the front part 10B, the appearance of the top cover portion 12A of the headrest body 10, which is easily visible to the occupant, will be impaired.

[0029] Therefore, in order to prevent creases from forming when the top cover portion 12A is bent, an in-stitch seam S is formed in advance near the support frame 22A, where creases are likely to form, along the width direction of the seat. Due to the seam S, when the front portion 10B of the main body bends toward the rear of the seat, the seam S proactively deforms to open the groove on the surface. Also, when the front portion 10B of the main body bends toward the front of the seat, the seam S proactively deforms to further close the groove on the surface. As a result, the formation of creases in areas other than the seam S of the top cover portion 12A is appropriately suppressed. The configuration of each part of the headrest 1 will be described in detail below.

[0030] (Headrest stay 20) First, let's explain the structure of the headrest stay 20. As shown in Figures 1 and 2, the stay body 21 is formed by bending a single round rod-shaped cylindrical member. Specifically, the stay body 21 has a shape that includes a pair of left and right leg portions 21A that extend straight in the vertical direction of the seat, and a connecting portion 21B that extends in a U-shape in plan view toward the front of the seat from the upper end of each leg portion 21A, connecting them.

[0031] The connecting portion 21B is shaped to curve in an inverted J-shape in a side view from the upper end of each leg portion 21A toward the front of the seat and extend downwards from the seat. The stay body 21 is configured such that the area from the upper part of each leg portion 21A to the connecting portion 21B is embedded in the headrest pad 11, and the portion from the middle of each leg portion 21A to the lower end extends downwards from the headrest pad 11 from the seat.

[0032] The wire 22 is formed by bending a single round rod-shaped linear member, which has a smaller diameter than the stay body 21. Specifically, the wire 22 is bent into a shape that forms a roughly inverted trapezoidal shape when viewed from the front, with both ends joined at the top edge. The top edges of the wire 22, where both ends are joined, are welded to the bottom surface of the bridging portion 21C of the connecting portion 21B of the stay body 21, which extends in the U-shape in the direction of the sheet width, and the wire 22 is provided to hang down from the bridging portion 21C parallel to each leg portion 21A.

[0033] The headrest stay 20, consisting of a stay body 21 and a wire 22, is formed to have a symmetrical shape. The reason why the headrest stay 20 is constructed by combining the stay body 21 with a wire 22 that has a smaller diameter is as follows. In other words, in this embodiment, the headrest 1 is constructed such that the headrest pad 11 is formed by integrally foam molding with the headrest cover 12 and the headrest stay 20.

[0034] Furthermore, the front part 10B of the headrest body 10, which is formed by foam molding of the headrest pad 11, is formed in a tapered shape so thin that the portion extending downwards is such that only a wire 22 with a smaller diameter than the stay body 21 can be incorporated inside, from the viewpoint of making the entire headrest 1 thinner. More specifically, the front part 10B of the headrest body 10 is configured in such a way that even if the wire 22 has a smaller diameter than the stay body 21, the support frame 22A that forms the lower edge cannot be inserted all the way to the lower end, and can only be incorporated up to a certain point.

[0035] Specifically, as shown in Figure 3, the support frame 22A is positioned approximately midway between the mounting portion 21C of the stay body 21 and the lower end of the tapered extension of the front part 10B of the headrest body 10. The support frame 22A has a circular cross-sectional shape and extends straight in the direction of the seat width.

[0036] (Headrest pad 11) As described above, the headrest pad 11 is formed by integrally foam molding with the headrest cover 12 and the headrest stay 20. Specifically, first, the headrest cover 12 is set in the foam molding mold under vacuum, and the headrest stay 20 is set in a fixed position within the foam molding mold. Next, foam resin material is poured into the foam molding mold and the mold is clamped to perform foam molding. As a result, the headrest pad 11 is foam-molded in a state in which it is integrally joined with the headrest stay 20 and the headrest cover 12.

[0037] (Headrest cover 12) The headrest cover 12 consists of a single cover structure formed by sewing together multiple cover pieces in a bag-like shape. Each cover piece has a two-layer structure consisting of a surface material made of synthetic leather or fabric, and a cover pad made of slab urethane that is integrally laminated to the back of the surface material.

[0038] The headrest cover 12 has a top cover portion 12A that covers the top portion of the headrest body 10 that supports the occupant's head. The top cover portion 12A is composed of a main portion 12B that forms the area above the seat from the aforementioned seam portion S, and an extended portion 12C that forms the area below the seat.

[0039] The sutured portion S is constructed by stitching the lower edge of the first cover piece C1, which constitutes the main body portion 12B, and the upper edge of the second cover piece C2, which constitutes the extension portion 12C, together along the sheet width direction using an institch. Here, the first cover piece C1 and the second cover piece C2 each correspond to the "cover piece" of the present invention.

[0040] The suture portion S is formed continuously over the entire width of the top cover portion 12A. The suture portion S is formed along the position corresponding to the folded portion 12D, which is the folded part of the top cover portion 12A when the front part 10B of the main body is folded towards the rear or front of the seat with the support frame 22A as the pivot point.

[0041] Specifically, as shown in Figure 4, the suture portion S is formed at a position lower than the protruding line L that protrudes furthest forward from the support frame 22A when viewed from a perpendicular direction perpendicular to the in-plane direction of the top plate cover portion 12A. More precisely, the suture portion S is set at a position where its arrangement in the seat height direction coincides with the lower end of the support frame 22A when viewed from the above direction. By setting the suture portion S in this position, when the front portion 10B of the main body is bent backward or forward from the seat with the support frame 22A as a pivot point, bending stress can be more appropriately concentrated on the suture portion S, thereby deforming the suture portion S.

[0042] The seam allowances S1 and S2, which are sewn together at the lower edge of the first cover piece C1 and the upper edge of the second cover piece C2, are cut into a short shape that extends straight from the front of the seat to the headrest pad 11, without being folded over and opened on the back of the cover. With this configuration, the lines of each seam allowance S1 and S2 are less likely to stand out as highlight lines on the top cover portion 12A compared to a configuration in which each seam allowance S1 and S2 is folded over and opened. Therefore, it is possible to more effectively suppress the occurrence of creases in areas other than the seam allowance S on the top cover portion 12A.

[0043] Furthermore, a resin adhesive film F is provided on the back side of the cover of the sutured portion S, extending across the first cover piece C1 and the second cover piece C2, and covering each seam allowance S1 and S2 from the back side of the cover. This adhesive film F has the function of preventing the foamed resin raw material from impregnating between each seam allowance S1 and S2 when the headrest pad 11 is foam-molded integrally with the headrest cover 12.

[0044] With this adhesive film F provided, even if the headrest pad 11 is integrally foam-molded with the headrest cover 12, the short seam allowances S1 and S2 can be held in a state where they extend out so that they properly abut the headrest pad 11 straight from the front of the seat.

[0045] Furthermore, the adhesive film F may also be applied to a configuration in which the headrest pad 11 is not integrally foam-molded with the headrest cover 12, but rather the headrest cover 12 is placed over it after foaming. Even in such a case, the adhesive film F is preferable because it can hold each seam allowance S1, S2 in a state where they extend straight out from the front of the seat and abut against the headrest pad 11.

[0046] In summary, the headrest 1 according to this embodiment has the following configuration. The reference numerals in parentheses below correspond to the respective components shown in the above embodiment.

[0047] In other words, the headrest (1) comprises a headrest stay (20) having a support frame (22A) extending in the width direction of the seat, a headrest pad (11) that fits over the headrest stay (20), and a headrest cover (12) that fits over the headrest pad (11) and is supported from the rear of the seat by the headrest stay (20) via the headrest pad (11) such that the support frame (22A) becomes the lowest position frame.

[0048] The top cover portion (12A) has an extended portion (12C) that extends below the support frame (22A) and a bent portion (12D) that is bent along the support frame (22A) when the extended portion (12C) receives a force that bends it in the front-rear direction of the seat with the support frame (22A) as a pivot point, together with the headrest pad (11). A seam portion (S) is formed in the bent portion (12D) where the cover pieces (C1, C2) constituting the top cover portion (12A) are sewn together with an institch along the width direction of the seat.

[0049] With the above configuration, even if the extended portion (12C) of the top cover (12A) is subjected to a force that bends it in the front-rear direction of the seat together with the headrest pad (11), causing the folded portion (12D) to bend in a valley fold or mountain fold along the support frame (22A), only the groove-shaped stitching portion (S) that is pre-formed on the folded portion (12D) will deform first. Therefore, it is possible to appropriately suppress the occurrence of creases in parts of the top cover (12A) other than the stitching portion (S).

[0050] Furthermore, the seam (S) is formed by sewing together the first cover piece (C1) of the main body portion (12B) that extends above the seat from the support frame (22A) of the top plate cover portion (12A) and the second cover piece (C2) of the extension portion (12C), and these seam allowances (S1, S2) are short in length so that they extend straight from the front of the seat and abut the headrest pad (11) without being folded open.

[0051] With the above configuration, compared to a configuration in which each seam allowance (S1, S2) is folded open, the lines of each seam allowance (S1, S2) are less likely to stand out as highlight lines on the top cover portion (12A). Therefore, it is possible to more effectively suppress the occurrence of creases in areas other than the seams (S) of the top cover portion (12A).

[0052] Furthermore, the headrest pad (11) is integrally foam-molded with the headrest cover (12) and the headrest stay (20). The headrest (1) further has an adhesive film (F) which is attached to the top plate cover portion (12A) so as to cover each seam allowance (S1, S2) from the back side of the cover, and prevents the foam resin material of the headrest pad (11) from impregnating between each seam allowance (S1, S2).

[0053] According to the above configuration, even if the headrest (1) is integrally foam-molded, the short seam allowances (S1, S2) can be kept in a state where they extend outwards so as to properly abut the headrest pad (11) straight from the front of the seat.

[0054] Furthermore, the support frame (22A) is configured to extend in a round rod shape in the sheet width direction. The suture portion (S) is provided at a lower position than the protruding line (L) that protrudes furthest forward from the support frame (22A). With the above configuration, when the extended portion (12C) of the top plate cover portion (12A) is pressed toward the rear of the sheet and the bent portion (12D) is bent with the support frame (22A) as the pivot point, the bending stress can be more appropriately concentrated on the suture portion (S) and the suture portion (S) can be deformed.

[0055] Furthermore, the headrest (1) has a saddle-type structure that supports the occupant's head with a cushion structure that is inverted L-shaped when viewed from the side. With the above configuration, even if the thin part extending forward and downward of the saddle-type headrest (1) is bent in the front-to-back direction of the seat, it is possible to appropriately prevent creases from forming on the top cover (12A). Also, for example, when lifting the saddle-type headrest (1) from a stored position along the upper and front parts of the seat back (2), applying an upward force from below to the thin part may cause the thin part to bend forward of the seat, but this can appropriately prevent creases from forming on the top cover (12A).

[0056] Furthermore, the headrest stay (20) comprises a stay body (21) made of a round bar-shaped member and a wire (22) made of a round bar-shaped member with a smaller diameter than the stay body (21). The stay body (21) has a pair of legs (21A) extending downward from the headrest pad (11) to the seat, and a connecting portion (21B) extending in a U-shape in plan view forward through the headrest pad (11) from the upper end of the pair of legs (21A) to connect them. The wire (22) is joined to the connecting portion (21C) of the connecting portion (21B) which extends in the seat width direction in a U-shape, and extends downward from the connecting portion (21C) through the headrest pad (11) to the seat. The support frame (22A) is made of the wire (22).

[0057] According to the above configuration, a support frame (22A) is set on the thin part of the headrest pad (11) through which a small-diameter wire (22) is passed, and even if the folding portion (12D) of the top plate cover (12A) is easily bent, it is possible to appropriately suppress the occurrence of creases in parts of the top plate cover (12A) other than the stitched portion (S).

[0058] Regarding other embodiments: Although an embodiment of the present invention has been described above using one embodiment, the present invention can be implemented in various forms as shown below, in addition to the above embodiment.

[0059] 1. The headrest of the present invention may be configured to be applied to the front seat of an automobile. In addition to being applied to seats installed in vehicles such as automobiles, the headrest may also be applied to seats installed in vehicles other than automobiles, such as aircraft and ships.

[0060] Furthermore, the headrest may also be applied to seats other than those in vehicles, such as spectator seats or massage seats installed in various facilities such as sports facilities, theaters, concert venues, and event venues. In addition, the headrest may be composed of a cushion structure other than a saddle shape.

[0061] 2. The support frame of the headrest stay may consist of the stay body itself. In addition, the support frame may consist of a rod shape other than a round rod shape, such as a square rod, or a plate shape or an irregularly shaped member.

[0062] 3. The headrest pad may be integrally molded with the headrest cover and headrest stay, or it may be integrally molded only with the headrest stay, with the headrest cover being placed over it afterward. Alternatively, the headrest pad may not be integrally molded with the headrest stay, but may be molded independently or integrally with the headrest cover before being assembled to the headrest stay. If the headrest pad is not integrally molded with the headrest cover, an adhesive film to prevent impregnation of the foam resin material is not necessarily required.

[0063] 4. The suture portion may be configured to be located at a position higher than the protruding line, which is the most forward-projecting line of the support frame. [Explanation of symbols]

[0064] 1 Headrest 2 seatbacks 10 Headrest body 10A Top of the unit 10B Front of the main unit 11 Headrest pads 12 Headrest Covers 12A Top panel cover 12B Main body 12C Extended part 12D Folding part 20 Headrest Stays 21. Main body of the bracket 21A Legs 21B Connection section 21C Bridge area 22 wires 22A Support Frame C1 First Cover Piece C2 Second Cover Piece S suture S1 seam allowance S2 seam allowance F Adhesive film L protruding line

Claims

1. It is a headrest, A headrest stay equipped with a support frame extending in the width direction of the seat, A headrest pad supported from the rear of the seat by the aforementioned headrest stay, It comprises a headrest cover that is placed over the headrest pad, The headrest cover has an extended portion that covers an overhang portion of the headrest pad that cantilevered outwards from the support frame toward the seat; a bent portion that is bent along the support frame when the overhang portion is bent in the front-rear direction of the seat with the support frame as a pivot point; and a sewn portion in which the cover piece constituting the bent portion is sewn along the support frame with an institch.

2. A headrest according to claim 1, The headrest is formed by sewing together a first cover piece of the main body portion that extends above the seat above the support frame of the headrest cover and a second cover piece of the extended portion, and the seam allowances are short in length so that they extend straight from the front of the seat and abut against the headrest pad without being folded open.

3. The headrest according to claim 2, The headrest pad is made from an integrally molded product of the headrest cover and the headrest stay. A headrest further comprising an adhesive film attached to the headrest cover so as to cover each of the seam allowances from the back side of the cover, thereby preventing the foam resin material of the headrest pad from impregnating each of the seam allowances.

4. A headrest according to any one of claims 1 to 3, The aforementioned support frame is configured to extend in a round bar shape in the width direction of the sheet, The headrest is provided with the sutured portion positioned lower than the protruding line, which is the most forward-projecting line of the support frame.

5. A headrest according to any one of claims 1 to 4, The headrest in question is a saddle-type headrest that supports the occupant's head with a cushion structure that is inverted L-shaped when viewed from the side.

6. A headrest according to any one of claims 1 to 5, The headrest stay comprises a stay body made of a round bar-shaped member having a pair of legs extending downward from the headrest pad to the seat and a connecting portion extending in a U-shape in plan view forward within the headrest pad to connect the upper ends of the pair of legs, and a wire made of a round bar-shaped member with a smaller diameter than the stay body, which is joined to the bridging portion of the U-shape of the connecting portion that extends in the seat width direction and extends downward from the bridging portion within the headrest pad to the seat, The aforementioned support frame is a headrest formed by the aforementioned wire.

7. It is a headrest, A headrest stay equipped with a support frame extending in the width direction of the seat, A headrest pad that is placed over the aforementioned headrest stay, The headrest cover includes a top cover portion that is placed over the headrest pad and is supported from the rear of the seat by the headrest stay via the headrest pad so that the support frame becomes the lowest position frame, The top plate cover portion has an extended portion that extends below the support frame, and a bent portion that is bent along the support frame as the extended portion, together with the headrest pad, receives a force that bends it in the front-rear direction of the seat with the support frame as the pivot point. A seam is formed at the aforementioned folded portion, in which the cover piece constituting the top plate cover portion is sewn with an in-stitch along the width direction of the sheet. The aforementioned seam is formed by sewing together a first cover piece of the main body portion that extends above the seat above the support frame of the top plate cover portion and a second cover piece of the extended portion, and these seam allowances are short in length so that they extend straight from the front of the seat and abut against the headrest pad without being folded open. The headrest pad is made from an integrally molded product of the headrest cover and the headrest stay. A headrest further comprising an adhesive film attached to the headrest cover so as to cover each of the seam allowances from the back side of the cover, thereby preventing the foam resin material of the headrest pad from impregnating each of the seam allowances.

8. It is a headrest, A headrest stay equipped with a support frame extending in the width direction of the seat, A headrest pad that is placed over the aforementioned headrest stay, The headrest cover includes a top cover portion that is placed over the headrest pad and is supported from the rear of the seat by the headrest stay via the headrest pad so that the support frame becomes the lowest position frame, The top plate cover portion has an extended portion that extends below the support frame, and a bent portion that is bent along the support frame as the extended portion, together with the headrest pad, receives a force that bends it in the front-rear direction of the seat with the support frame as the pivot point. A seam is formed at the aforementioned folded portion, in which the cover piece constituting the top plate cover portion is sewn with an in-stitch along the width direction of the sheet. The aforementioned support frame is configured to extend in a round bar shape in the width direction of the sheet, The headrest is provided with the sutured portion positioned lower than the protruding line, which is the most forward-projecting line of the support frame.

9. It is a headrest, A headrest stay equipped with a support frame extending in the width direction of the seat, A headrest pad that is placed over the aforementioned headrest stay, The headrest cover includes a top cover portion that is placed over the headrest pad and is supported from the rear of the seat by the headrest stay via the headrest pad so that the support frame becomes the lowest position frame, The top plate cover portion has an extended portion that extends below the support frame, and a bent portion that is bent along the support frame as the extended portion, together with the headrest pad, receives a force that bends it in the front-rear direction of the seat with the support frame as the pivot point. A seam is formed at the aforementioned folded portion, in which the cover piece constituting the top plate cover portion is sewn with an in-stitch along the width direction of the sheet. The headrest stay comprises a stay body made of a round bar-shaped member having a pair of legs extending downward from the headrest pad to the seat and a connecting portion extending in a U-shape in plan view forward within the headrest pad to connect the upper ends of the pair of legs, and a wire made of a round bar-shaped member with a smaller diameter than the stay body, which is joined to the bridging portion of the U-shape of the connecting portion that extends in the seat width direction and extends downward from the bridging portion within the headrest pad to the seat, The aforementioned support frame is a headrest formed by the aforementioned wire.

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