Headrest

Abstract

To provide a headrest capable of securing both assemblability of a headrest cover and assemblability of a base material.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 plastic panel 3 has a rear side covered region covered from the rear side of the base material by pull-in parts 5U, 5L, 5S pulled in to the rear side of the base material of the headrest cover 5, and a non-rear side covered region not covered by the pull-in parts 5U, 5L, 5S. Further, the plastic panel 3 has a positioning pin 3A that protrudes from the non-rear side covered region toward the base material rear side and is engaged with the headrest frame 2.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 is attached to a resin base material together with the headrest pad, and is attached to the headrest frame via the base material. [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, when the headrest cover is placed over the mounting surface of the base material, if there are protrusions such as positioning pins for positioning on the mounting surface, it becomes difficult to attach the headrest cover. Therefore, the present invention provides a headrest that can ensure the ease of assembly of both the headrest cover and the base material. [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 a rear covered region that is covered from the rear side of the base material by a retraction portion that is retracted into the rear side of the base material of the headrest cover, a non-rear covered region that is not covered by the retraction portion, and an engaging protrusion that protrudes from the non-rear covered region to the rear side of the base material and engages with the headrest frame.

[0007] According to the first aspect of the present invention, the engaging protrusions protruding from the rear surface of the base material are provided in the non-rear covering region of the base material, so that the headrest cover can be installed without getting caught on the engaging protrusions. Also, the headrest cover is installed without covering the engaging protrusions from the rear side of the base material. This ensures both ease of assembly of the headrest cover and the base material.

[0008] The second invention of the present invention is a headrest according to the first invention, wherein the base material is provided with a pair of cover fixing portions at symmetrical positions in the width direction of the base material, which are capable of collectively fixing each retraction portion of the headrest cover that is retracted from the upper side, lower side, and lateral side of the base material to the rear side of the base material, and the engaging protrusions are arranged so as to be aligned in the width direction of the base material between the pair of cover fixing portions.

[0009] According to the second aspect of the present invention, the top, bottom, left, and right retractable portions of the headrest cover can be rationally and appropriately fixed to the rear surface of the base material, and the engaging protrusions can be optimally positioned in the areas set as the empty spaces between the retractable portions on the rear surface of the base material.

[0010] A third aspect of the present invention is the headrest according to the first or second aspect, wherein the engagement protrusion is a positioning pin for positioning that is inserted into the headrest frame from the front of the headrest.

[0011] According to the third aspect of the present invention, even if the engaging projections are made to protrude long as positioning pins for positioning that are inserted into the headrest frame, the headrest cover can be easily attached without being caught on the engaging projections. [Brief explanation of the drawings]

[0012] [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

[0013] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0014] 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.

[0015] 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.

[0016] 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.

[0017] 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.

[0018] 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.

[0019] 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.

[0020] 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.

[0021] 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.

[0022] The plastic panel 3 has positioning pins 3A that protrude rearward in two symmetrical positions on the left and right sides of the rear surface of the panel. Each positioning pin 3A is formed at a central position away from the upper, lower, left, and right outer peripheral edges of the rear surface of the plastic panel 3.

[0023] The resin panel 3 is positioned vertically and horizontally relative to the panel frame 2B by inserting each positioning pin 3A from the front into a corresponding positioning hole B1 formed in the panel frame 2B (see FIG. 3). Here, each positioning pin 3A corresponds to the "engagement protrusion" of the present invention.

[0024] 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.

[0025] 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).

[0026] 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 of the panel (the 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.

[0027] 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.

[0028] 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.

[0029] 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 and hooked. The left and right retraction portions 5S have hook holes S1 formed in each cover end, one at a time, through which the corresponding fastening pins 3C are passed from the rear and hooked. Here, each fastening pin 3C corresponds to the "engagement protrusion" of the present invention.

[0030] 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.

[0031] 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.

[0032] 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.

[0033] 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.

[0034] Each pair of left and right fastening bases 3B 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.

[0035] 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.

[0036] 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.

[0037] 6, a barb C1 is formed at the tip of each fastening pin 3C to prevent it from slipping out of the hook holes U1, L1, S1 of the retraction sections 5U, 5L, 5S through which it is passed. These barbs C1 do not necessarily have to be formed around the entire periphery of each fastening pin 3C so as to prevent undercuts from occurring when the resin panel 3 is molded.

[0038] However, it is preferable that each barb C1 is formed at a position that can prevent at least the last of the retracting portions 5U, 5L, 5S to be hooked onto the fastening pin 3C from coming off. In that sense, the order in which the retracting 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.

[0039] 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.

[0040] 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) so that the panel surface faces 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.

[0041] The base material (3) has a rear covered region (A1) that is covered from the rear side of the base material by retraction portions (5U, 5L, 5S) that are retracted into the rear side of the base material of the headrest cover (5), and a non-rear covered region (A2) that is not covered by the retraction portions (5U, 5L, 5S). The base material (3) also has engagement protrusions (3A) that protrude from the non-rear covered region (A2) to the rear side of the base material and engage with the headrest frame (2).

[0042] In this way, the engaging projections (3A) protruding from the rear surface of the base material are provided in the non-rear covering region (A2) of the base material (3), so that the headrest cover (5) can be attached without being caught on the engaging projections (3A). Also, the headrest cover (5) is attached in a state where it does not cover the engaging projections (3A) from the rear side of the base material. Therefore, it is possible to ensure both the ease of assembly of the headrest cover (5) and the base material (3).

[0043] The base material (3) also has a pair of cover fixing portions (3C) at symmetrical positions in the base material width direction, which can collectively fix the respective retraction portions (5U, 5L, 5S) of the headrest cover (5) that are retracted from the base material upper side, base material lower side, and base material lateral side to the base material rear side. The engaging protrusions (3A) are arranged between the pair of cover fixing portions (3C) so as to be aligned in the base material width direction.

[0044] According to the above-described configuration, the upper, lower, left, and right recesses (5U, 5L, 5S) of the headrest cover (5) can be rationally and appropriately fixed to the rear surface of the base material, and the engaging protrusions (3A) can be optimally positioned in the areas set as empty spaces between the recesses (5U, 5L, 5S) on the rear surface of the base material.

[0045] In addition, the engaging protrusions (3A) are positioning pins (3A) that are inserted into the headrest frame (2) from the front of the headrest. According to the above configuration, even if the engaging protrusions (3A) are made to protrude long as positioning pins (3A) that are inserted into the headrest frame (2), the headrest cover (5) can be easily attached without getting caught on the engaging protrusions (3A).

[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. Examples of this type of headrest include a headrest configured such that each retractable portion of the headrest cover retracts to the rear side of the base material and is further covered from the rear with a resin cover.

[0048] 2. The base material may be a resin panel or a metal panel. The cover fixing portion of the base material may be capable of fixing each retractable portion of the headrest cover. Specifically, the cover fixing portion may be a pin-shaped portion protruding from the rear surface of the base material, or may be a claw-shaped or hook-shaped portion protruding from the rear surface of the base material.

[0049] When the fastening pin serving as the cover fixing portion has a protrusion shape with multiple branches, the hooking hole formed in each hooking portion may be fixed to any of the branched protrusions. Each hooking hole may be divided into multiple parts so as to be fixed to two or more of the branched protrusions. Also, barbs may be formed separately on each branched protrusion. In this case, each hooking hole may be made difficult to come off by any of the barbs formed separately on each branched protrusion.

[0050] 3. The engaging protrusions that protrude from the non-rear covering region of the base material toward the rear side of the base material and engage with the headrest frame may be positioning pins or protrusions that are bolted to the headrest frame or snap-fitted with clips. The engaging protrusions are not limited to those provided in pairs in the width direction of the base material, and may be one or three or more.

[0051] 4. The headrest cover may be made of synthetic leather, natural leather or fabric. [Explanation of symbols]

[0052] 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 (engagement protrusion) 3B Fastening base 3C Locking pin (cover fixing part) C1 Return 3D speaker section 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 covering region in which the base material is covered from the rear side of the base material by a retraction portion that is retracted into the rear side of the base material of the headrest cover, a non-rear covering region that is not covered by the retraction portion, and an engaging protrusion that protrudes from the non-rear covering region to the rear side of the base material and engages with the headrest frame.

2. 2. The headrest according to claim 1, the base material includes a pair of cover fixing portions at symmetrical positions in the base material width direction, which are capable of collectively fixing each of the retraction portions of the headrest cover that are retracted from the base material upper side, the base material lower side, and the base material lateral side to the base material rear side, The headrest has the engaging protrusions arranged between the pair of cover fixing portions so as to be aligned in the base width direction.

3. The headrest according to claim 1 or 2, The headrest wherein the engaging projection is a positioning pin for positioning that is inserted into the headrest frame from the front of the headrest.

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