Headrest

Abstract

To provide a headrest capable of rationally fixing a pull-in part pulled in to the rear side of a base material of a headrest cover.SOLUTION: The headrest 1 includes a headrest frame 2 forming a framework of the headrest 1, a resin panel 3 attached to the headrest frame 2 such that a panel surface faces a front side of the headrest, and a headrest cover 5 covering the resin panel 3 from the front side of the headrest. The resin-made panel 3 has a fixing pin 3C capable of collectively fixing respective hooking holes formed in respective pull-in parts 5U, 5L and 5S pulled in to the base material rear side from the base material upper side, the base material lower side and the base material lateral side of the headrest cover 5.SELECTED DRAWING: Figure 2

Description

[Technical Field]

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

[0002] Patent Document 1 discloses a headrest for a seated person to rest their head on. This headrest includes a headrest frame with a pair of left and right headrest stays, a headrest pad attached to the head of the headrest frame, and a headrest cover that covers the headrest pad. The headrest cover has its peripheral cover terminals fixed at multiple points to a base material attached to the headrest frame. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Patent No. 7240294 Summary of the Invention [Problem to be solved by the invention]

[0004] In the configuration described in Patent Document 1, the cover end of the headrest cover is fixed to the base material at multiple points along the end. Therefore, it is necessary to secure a large space for fixing the cover end to the base material. Therefore, the present invention provides a headrest that can rationally fix the retractable portion that retracts into the rear side of the base material of the headrest cover. [Means for solving the problem]

[0005] To solve the above problems, the headrest of the present invention employs the following means.

[0006] That is, the first invention of the present invention is a headrest comprising a headrest frame forming the skeleton of the headrest, a panel-shaped base material attached to the headrest frame with the panel surface facing forward of the headrest, and a headrest cover that is placed over the base material from the front of the headrest, wherein the base material has rear surface protrusions that can collectively fix the hook holes formed in each retraction section that is retracted from the upper side, lower side and lateral side of the base material to the rear side of the base material of the headrest cover.

[0007] According to the first invention, each retraction portion that is retracted from the upper side, lower side, and lateral side of the base material of the headrest cover to the rear side of the base material can be rationally fixed to the rear surface protrusion provided on the rear surface of the base material.

[0008] A second aspect of the present invention is a headrest according to the first aspect of the present invention, wherein the base material has another protrusion on the rear surface of the base material at a position further outward in the base material width direction than the rear surface protrusion, and the retraction portion of the headrest cover that is retracted from the side of the base material to the rear side of the base material has an escape hole that passes through the other protrusion to avoid contact with the other protrusion.

[0009] According to the second aspect of the present invention, even if another projection that projects larger than the rear projection is provided on the rear surface of the base material, each retraction portion of the headrest cover can be properly fixed to the rear projection.

[0010] A third aspect of the present invention is a headrest according to the first or second aspect, wherein the rear projections have barbs that make it difficult for the rear projections to slip out of the hook holes hooked onto the rear projections.

[0011] According to the third aspect of the present invention, the retraction portions of the headrest cover hooked on the rear projections are prevented from slipping off the rear projections by the return of the rear projections, thereby enabling the retraction portions to be more appropriately fixed to the rear projections.

[0012] A fourth aspect of the present invention is the headrest according to the first or second aspect, wherein the rear projections are provided in pairs at symmetrical positions in the base width direction of the base.

[0013] According to the fourth invention, by simply providing two rear surface protrusions on the rear surface of the base material, the two left and right locations of the upper and lower retraction portions of the headrest cover, as well as each of the left and right retraction portions, can be fixed together in a rational manner. [Brief explanation of the drawings]

[0014] [Figure 1] 1 is a perspective view of a seat back to which a headrest according to a first embodiment is applied. [Figure 2] FIG. 2 is an exploded perspective view of the panel-shaped base material removed from the headrest frame. [Figure 3] FIG. 10 is a perspective view of the base material attached to the headrest frame. [Figure 4] FIG. 2 is an exploded perspective view of the headrest cover detached from the base material. [Figure 5] FIG. 10 is a rear view of the headrest cover placed on the base material. [Figure 6] FIG. 6 is a cross-sectional view taken along line VI-VI in FIG. 5. DETAILED DESCRIPTION OF THE INVENTION

[0015] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0016] First Embodiment (Schematic configuration of headrest 1) First, the configuration of a headrest 1 according to a first embodiment of the present invention will be described with reference to Figures 1 to 6. In the following description, when directions such as front, back, up, down, left, and right are indicated, they refer to the directions shown in each figure. The directions shown in each figure are the directions seen from the perspective of a seated occupant resting their head on the headrest 1.

[0017] The left-right direction shown in each drawing corresponds to the width direction of the headrest 1. In the following description, when a specific reference drawing is not shown or when a reference drawing does not have a corresponding reference symbol, any of Figures 1 to 6 will be referred to as appropriate.

[0018] The headrest 1 according to this embodiment is applied to a so-called high-back type seat back 10. Specifically, the headrest 1 is provided so as to be integrated with the upper front surface of the seat back 10, which has a backrest surface formed higher than that of a normal type.

[0019] The headrest 1 has a headrest frame 2 that forms the skeleton thereof, and a resin panel 3 that is assembled to cover the headrest frame 2 from the front. The headrest 1 also has a headrest pad 4 that is assembled to cover the resin panel 3 from the front, and a headrest cover 5 made of synthetic leather that covers the headrest pad 4. Here, the resin panel 3 corresponds to the "base material" of the present invention.

[0020] The seat back 10 has a metal seat back frame 11 that forms the framework of the seat back, a seat back pad 12 made of urethane foam that covers the seat back frame 11 from the front, and a seat back cover 13 made of synthetic leather that covers the seat back pad 12.

[0021] As shown in Fig. 2, the headrest frame 2 is fixed integrally to the upper part of the seatback frame 11. The resin panel 3 of the headrest 1 is assembled to cover the headrest frame 2 fixed to the seatback frame 11 from the front side. As a result, the resin panel 3 is attached to the headrest frame 2 with its horizontally long panel surface facing forward.

[0022] Specifically, after the headrest pad 4 and the headrest cover 5 are assembled to the resin panel 3, the resin panel 3 is assembled to the headrest frame 2 from the front side. As a result, the headrest 1 is provided so as to be integrated with the upper front surface of the seat back 10, as shown in FIG.

[0023] 2, the headrest frame 2 has a main body frame 2A made of pipe material bent into a frame shape that fits around the periphery of the headrest 1, and a planar panel frame 2B welded to the main body frame 2A so as to cover the inside of the frame. The resin panel 3 is assembled so as to cover the panel frame 2B from the front.

[0024] The plastic panel 3 has positioning pins 3A that protrude rearward in a pin shape at two symmetrical positions on the left and right sides of its rear surface. Each positioning pin 3A is formed at a central position away from each of the top, bottom, left, and right outer edges on the rear surface of the plastic panel 3. The plastic panel 3 is configured so that the top, bottom, left, and right assembly positions relative to the panel frame 2B are determined by inserting each positioning pin 3A from the front side into a corresponding positioning hole B1 formed in the panel frame 2B (see Figure 3).

[0025] 4, the plastic panel 3 is provided with fastening seats 3B that protrude rearward in a pedestal shape at four positions on the rear surface of the panel, sandwiching each positioning pin 3A from above and below. As shown in FIG. 2, by inserting each positioning pin 3A into a corresponding positioning hole B1 in the panel frame 2B, the holes formed in the seat at the protruding end of each fastening seat 3B are aligned with the corresponding fastening holes B2 formed in the panel frame 2B.

[0026] Then, fastening bolts (not shown) are inserted into the fastening holes B2 of the panel frame 2B and the holes of the fastening seats 3B to fasten the panel frame 2B together, thereby fixing the resin panel 3 integrally to the panel frame 2B (see FIG. 3).

[0027] As shown in Fig. 5, the resin panel 3 further includes fastening pins 3C at two symmetrical positions on the left and right sides of the rear surface of the panel, which are outside the positioning pins 3A. The fastening pins 3C are capable of hooking and fixing the retraction portions 5U, 5L, 5S that are retracted into the rear side (back side) of the panel of the headrest cover 5. The fastening pins 3C are formed at approximately the same height as the positioning pins 3A. Here, the fastening pins 3C correspond to the "rear surface protrusions" of the present invention.

[0028] Each fastening pin 3C protrudes shorter than each positioning pin 3A. As shown in Fig. 4, each fastening pin 3C is hooked from the rear side to an upper retraction portion 5U, a lower retraction portion 5L, and corresponding left and right retraction portions 5S, in this order, which are retracted toward the rear side of the panel of the headrest cover 5.

[0029] Hook holes U1, L1, S1 that can be passed through the corresponding fastening pins 3C are formed in the cover terminals of the retraction portions 5U, 5L, 5S of the headrest cover 5. The upper retraction portion 5U has hook holes U1 formed in the cover terminals at two locations on the left and right, through which the corresponding fastening pins 3C are passed from the rear side and hooked.

[0030] The lower retraction portion 5L has hook holes L1 formed in the two left and right cover ends, through which the corresponding fastening pins 3C are passed from the rear side and hooked. The left and right retraction portions 5S have hook holes S1 formed in one location in each cover end, through which the corresponding fastening pins 3C are passed from the rear side and hooked.

[0031] As shown in Fig. 4, the upper retraction portion 5U has relief holes U2 formed in two locations on the left and right of the area that covers the rear surface of the panel. These relief holes U2 are through holes that are passed through the two upper fastening seats 3B protruding from the rear surface of the resin panel 3 to avoid contact with these fastening seats 3B when the left and right hooking holes U1 of the upper retraction portion 5U are hooked onto the corresponding fastening pins 3C.

[0032] The lower recess 5L also has relief holes L2 formed in two locations on the left and right of the area that covers the rear surface of the panel. These relief holes L2 are also through-holes that are passed through the two lower fastening seats 3B protruding from the rear surface of the resin panel 3 to avoid contact with these fastening seats 3B when the left and right hooking holes L1 of the lower recess 5L are hooked onto the corresponding fastening pins 3C.

[0033] The left and right retraction portions 5S also have relief holes S2 formed in one location in the area that covers the rear surface of the panel. These relief holes S2 are also through-holes that pass through the left and right speaker portions 3D protruding from the rear surface of the resin panel 3 to avoid contact with the speaker portions 3D when the hooking holes S1 of the left and right retraction portions 5S are hooked onto the corresponding fastening pins 3C.

[0034] 5, these relief holes U2, L2, S2 are passed through the fastening bases 3B and the speaker units 3D on the rear surface of the panel, so that the lead-in portions 5U, 5L, 5S can be appropriately hooked onto the corresponding fastening pins 3C, which protrude lower than the fastening bases 3B and the speaker units 3D, without being blocked by them. Each speaker unit 3D is a portion that functions as an enclosure for a speaker unit (not shown) provided on the front surface of the resin panel 3.

[0035] Each of the pair of left and right fastening bases 3B, which are arranged vertically, is formed at a position where it overlaps with the corresponding left and right fastening pins 3C in the left-right direction. Also, each speaker part 3D is formed at a position where it overlaps with the corresponding fastening pins 3C in the height direction. Here, each speaker part 3D corresponds to the "other protrusion" of the present invention.

[0036] By hooking the retractions 5U, 5L, 5S onto the corresponding fastening pins 3C, the plastic panel 3 is configured to have, on its rear surface, a rear covered area A1 that is covered from the rear side of the panel by the retractions 5U, 5L, 5S, and a non-rear covered area A2 that is not covered by the retractions 5U, 5L, 5S. In other words, the headrest cover 5 is configured to form the non-rear covered area A2 that does not cover the rear side of the plastic panel 3 and exposes the rear surface of the panel between the two left and right locations that are hooked onto the fastening pins 3C, between the upper retraction 5U and the lower retraction 5L.

[0037] The positioning pins 3A protruding from the rear surface of the resin panel 3 are formed in this non-rear covered area A2. Therefore, the retractable portions 5U, 5L, 5S can be easily and appropriately attached to the rear surface of the panel without being caught on the positioning pins 3A.

[0038] 6, a barb C1 is formed at the tip of each fastening pin 3C to prevent the pin from slipping out of the hooking holes U1, L1, S1 of the retraction portions 5U, 5L, 5S. These barbs C1 do not necessarily have to be formed around the entire periphery of each fastening pin 3C to prevent undercuts from occurring when the resin panel 3 is molded.

[0039] However, it is preferable that each barb C1 is formed at a position where at least the last of the retractable portions 5U, 5L, 5S to be hooked onto the fastening pin 3C can be made difficult to come off. In that sense, the order in which the retractable portions 5U, 5L, 5S are hooked onto the fastening pin 3C may be determined according to the position at which each barb C1 is formed.

[0040] To summarize the above, the headrest 1 according to this embodiment has the following configuration: Note that the reference numerals in parentheses below correspond to the respective components shown in the above embodiment.

[0041] That is, the headrest (1) has a headrest frame (2) that forms its framework, and a panel-shaped base material (3) that is attached to the headrest frame (2) with the panel surface facing forward of the headrest. The headrest (1) also has a headrest cover (5) that is placed over the base material (3) from the front of the headrest. The base material (3) has a rear projection (3C) that can collectively secure the hook holes (U1, L1, S1) formed in the retraction portions (5U, 5L, 5S) of the headrest cover (5) that are retracted from the upper, lower, and lateral sides of the base material to the rear side of the base material.

[0042] According to the above configuration, each retraction portion (5U, 5L, 5S) that is retracted from the upper side, lower side, and lateral side of the base material of the headrest cover (5) to the rear side of the base material can be rationally fixed to the rear surface protrusion (3C) provided on the rear surface of the base material.

[0043] Furthermore, the base material (3) has another protrusion (3D) that protrudes further rearward than the rear protrusion (3C) on the rear surface of the base material at a position further outward in the base material width direction than the rear protrusion (3C). A retraction portion (5S) of the headrest cover (5) that retracts from the lateral side of the base material to the rear side of the base material has an escape hole (S2) through which the other protrusion (3D) passes to avoid contact with the other protrusion (3D). With this configuration, even if another protrusion (3D) that protrudes further than the rear protrusion (3C) is provided on the rear surface of the base material, each retraction portion (5S) of the headrest cover (5) can be properly fixed to the rear protrusion (3C).

[0044] In addition, the rear projection (3C) has a barb (C1) that makes it difficult for the retractable portions (5U, 5L, 5S) of the headrest cover (5) hooked onto the rear projection (3C) to come out of the hooking holes (U1, L1, S1). According to the above configuration, the barb (C1) of the rear projection (3C) makes it difficult for the retractable portions (5U, 5L, 5S) of the headrest cover (5) hooked onto the rear projection (3C) to come out of the rear projection (3C). As a result, the retractable portions (5U, 5L, 5S) can be more appropriately fixed to the rear projection (3C).

[0045] In addition, a pair of rear projections (3C) are provided at symmetrical positions in the width direction of the base material (3). According to the above configuration, by simply providing two rear projections (3C) on the rear surface of the base material, it is possible to rationally fix the two upper and lower retraction portions (5U, 5L) on the left and right of the headrest cover (5) and the left and right retraction portions (5S) together.

[0046] Other Embodiments Although one embodiment of the present invention has been described above, the present invention can be embodied in various forms other than the above embodiment.

[0047] 1. The headrest of the present invention may be applied to a high-back type seatback as shown in the above embodiment, or may be configured to be attached to the upper part of the seatback by inserting stays. An example of this type of headrest is one in which the retracted portions of the headrest cover are covered with a resin cover.

[0048] 2. The base material may be a resin panel or a metal panel. The rear surface protrusion of the base material may be a pin-shaped protrusion from the rear surface of the base material, or may be a claw-shaped or hook-shaped protrusion. Another protrusion that is provided at a position outside the rear surface protrusion of the base material in the base material width direction and protrudes farther rearward than the rear surface protrusion may be a protrusion other than a speaker portion. For example, the other protrusion may be a fastening base that protrudes from the rear surface of the base material and is fastened to the headrest frame.

[0049] 3. The headrest cover may be made of synthetic leather, natural leather or fabric.

[0050] 4. The hook holes formed in each retraction section may be fixed to one rear projection together. For example, if the rear projection has a branched projection shape, each hook hole may be fixed to any of the branched projections. Each hook hole may be divided into multiple parts so that it can be fixed to two or more of the branched projections. Also, barbs may be formed separately on each branched projection. In this case, each hook hole may be made difficult to remove by any of the barbs formed separately on each branched projection. [Explanation of symbols]

[0051] 1 headrest 2 Headrest Frame 2A Main frame 2B Panel Frame B1 Positioning hole B2 fastening hole 3 Resin panel (base material) 3A Locating Pin 3B Fastening base 3C Fixing pin (rear protrusion) C1 Return 3D speaker part (separate protrusion) 4 headrest pads 5 Headrest Covers 5U Retractable section U1 hook hole U2 Relief hole 5L Retraction section L1 hook hole L2 Relief hole 5S Retraction section S1 Hook hole S2 Relief hole 10 Seatback 11 Seat back frame 12 Seat back pad 13 Seat back cover A1 Posterior coverage area A2 Non-posterior coverage area

Claims

1. A headrest, a headrest frame that forms a framework of the headrest; a panel-shaped base material attached to the headrest frame so that the panel surface faces forward of the headrest; a headrest cover that is placed over the base material from the front of the headrest, The headrest has a rear projection that can collectively fix the hook holes formed in each retraction section that is retracted from the upper side, lower side, and lateral side of the base material to the rear side of the base material of the headrest cover.

2. 2. The headrest according to claim 1, the base material has another protrusion on the rear surface of the base material at a position on the outside of the rear surface protrusion in the base material width direction, the other protrusion protruding farther rearward than the rear surface protrusion, The headrest has an escape hole through which the retraction portion, which is retracted from the side of the base material of the headrest cover to the rear side of the base material, passes through the other protrusion so as to avoid contact with the other protrusion.

3. The headrest according to claim 1 or 2, The headrest has a barb in the rear projection that makes it difficult for the rear projection to slip out of the hook hole.

4. The headrest according to claim 1 or 2, The headrest has a pair of rear projections provided at symmetrical positions in the width direction of the base material.

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