Headrest

Abstract

To provide a novel headrest.SOLUTION: A headrest comprises a headrest body, and a stay coupling part that can couple a headrest stay, and the stay coupling part is provided on a rear face of the headrest body.SELECTED DRAWING: Figure 3

Description

[Technical Field]

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

[0002] BACKGROUND ART A headrest in which a headrest stay is embedded and fixed is known (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] JP 9-267679 (Fig. 1, etc.) Summary of the Invention [Problem to be solved by the invention]

[0004] The present disclosure provides a novel headrest. [Means for solving the problem]

[0005] One aspect of the invention is a headrest comprising a headrest body and a stay connecting portion to which a headrest stay can be connected, the stay connecting portion being provided on a rear surface of the headrest body. [Brief explanation of the drawings]

[0006] [Figure 1] FIG. 1 is a front perspective view of a seat provided with a headrest according to a first embodiment. [Figure 2] Figure 2 is a side cross-sectional view of the headrest. [Figure 3] FIG. 3 is a rear perspective view of the headrest. [Figure 4] FIG. 4 is a rear exploded perspective view of the headrest. [Figure 5] FIG. 5A is a rear view of the headrest, and FIG. 5B is a rear view of the headrest slid upward. [Figure 6]FIG. 6 is a cross-sectional view of the slide connector when the positioning mechanism is engaged with the stay. [Figure 7] FIG. 7 is a cross-sectional view of the slide connector when the operation button is pressed and the positioning mechanism and the stay are disengaged. [Figure 8] FIG. 8 is a cross-sectional view of the stay connector when the positioning mechanism and the stay are disengaged and can slide relative to the stay. [Figure 9] FIG. 9 is a side cross-sectional view of a headrest equipped with a rear cover. [Figure 10] FIG. 10 is a side cross-sectional view of a headrest according to another embodiment. [Figure 11] FIG. 11 is a front perspective view of a seat provided with a headrest according to another embodiment. [Figure 12] FIG. 12 is a side cross-sectional view of a headrest according to another embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0007] [First embodiment] As shown in Fig. 1, a headrest 10 according to the first embodiment is used in, for example, a vehicle (e.g., car) seat 90. As shown in Fig. 2, the headrest 10 includes a headrest main body 20 that receives the head of a seated occupant at the front, and the headrest main body 20 is supported by a stay 30 attached to a seat back 92 (backrest portion) of the seat 90.

[0008] In this embodiment, the headrest main body 20 has a base member 21 and a cushion member 22. The base member 21 is fixed to a stay connecting portion 40 that is connected to the stay 30. The cushion member 22 is fixed to the front surface of the base member 21 and receives the head of a seated occupant at the front surface.

[0009] In this embodiment, the base member 21 is plate-shaped and is disposed so that the thickness direction is the front-rear direction. The base member 21 may be made of, for example, resin or metal. The base member 21 is preferably made of a material harder than the material of the cushion member 22.

[0010] The cushion member 22 contains an elastic resin such as a foamed resin and has cushioning properties. The foamed resin may be a thermosetting resin (e.g., polyurethane resin) or a thermoplastic resin. The elastic resin may be a non-foamed resin.

[0011] The cushion member 22 may have a structure in which a molded body of elastic resin such as foamed resin is covered with a skin material. Examples of such a skin material include a bag-like material that contains the molded body of elastic resin (for example, a sewn product in which skin pieces are sewn together). The cushion member 22 may be an integrally molded product in which the elastic resin molded body is integrally molded with the skin material (for example, integrally foamed), or may be a pre-molded elastic resin molded body covered with a skin material.

[0012] 3 and 4, in this embodiment, the stay 30 has a shape in which a pair of second bars 32 hang down from both ends of a first bar 31 extending in the horizontal direction (width direction of the headrest 10), and is formed, for example, by bending a metal rod-shaped member (for example, a round rod-shaped member). In this embodiment, the second bars 32 extend parallel to each other.

[0013] 2 and 3, the headrest 10 has the above-mentioned stay connecting portion 40 that is connected to the stay 30, and the stay connecting portion 40 is provided on the rear surface of the headrest main body 20. In this embodiment, the stay connecting portion 40 is fixed to the rear surface of the base member 21.

[0014] 3 and 4, in this embodiment, the stay connecting portion 40 includes a pair of support cylinder portions 41 to which the pair of second bars 32 of the stay 30 are connected in a state in which they pass through in the up-down direction. Each of the pair of support cylinder portions 41 has a through-hole 41H through which the second bar 32 is inserted from above. The pair of support cylinder portions 41 are fixed to the rear surface of the base member 21 and are arranged, for example, spaced apart in the horizontal direction.

[0015] The pair of second bars 32 of the stay 30 are inserted into the through-holes 41H of the pair of support cylindrical portions 41, respectively, and protrude downward from the pair of support cylindrical portions 41. The pair of second bars 32 are then inserted into stay insertion holes 92H formed in the upper end surface of the seat back 92. In this way, the pair of second bars 32 are fixed to the seat back 92. For example, the seat back 92 has a frame receiving portion 92U formed on the rear surface of a pad member 92P that supports the back of a seat occupant, and the distal end portion (lower end portion) of the stay 30 is fixed to a seat back frame (not shown) received in the frame receiving portion 92U.

[0016] In this embodiment, the stay connector 40 includes a slide connector 42 that is connected to the stay 30 so as to be slidable in the up-down direction (see FIG. 6). This allows the headrest main body 20 to slide up and down relative to the stay 30 that is fixed to the seat back 92, thereby enabling height adjustment of the headrest 10 (see FIGS. 5A and 5B). In addition, in this embodiment, the stay connector 40 includes a positioning mechanism 43 that engages with the stay 30 at multiple positions in the up-down direction and restricts sliding of the slide connector 42 (i.e., the headrest main body 20) relative to the stay 30 (see FIGS. 6 to 8). As shown in FIG. 4, for example, the stay 30 has engagement recesses 32U at multiple positions in the up-down direction of one of the second bars 32. The positioning mechanism 43 can engage with any of the multiple engagement recesses 32U.

[0017] For example, as shown in FIG. 6, the positioning mechanism 43 is provided on the support tube portion 41 through which one of the second bars 32 is inserted. In the example shown in the figure, the positioning mechanism 43 has a ring member 45 arranged inside the support tube portion 41 to surround the second bar 32. The ring member 45 is configured to be slidable in a direction intersecting the second bar 32 (the horizontal direction in the example of FIG. 6). The ring member 45 is biased toward one side of the sliding direction (the right side in the example of FIG. 6) by a biasing means 47 (e.g., a compression coil spring). This causes the inner circumferential surface of the ring member 45 to be pressed against the outer circumferential surface of the second bar 32. The inner circumferential surface of the ring member 45 is provided with an engagement portion 46 that is received and engaged with the engagement recess 32U of the stay 30 when the engagement portion 46 and the engagement recess 32U are aligned in the vertical direction. Engagement of the engagement portion 46 with the engagement recess 32U restricts the sliding of the headrest main body 20 relative to the stay 30 and positions the headrest main body 20 in the vertical direction.

[0018] As shown in Fig. 6, an operation button 44 protruding from the outer surface of the support cylinder portion 41 is provided at a portion of the circumference of the ring member 45 (in the example shown in Fig. 6, on one side of the ring member 45 in the sliding direction). Then, as shown in Fig. 7, when the operation button 44 is pressed in on the other side of the ring member 45 in the sliding direction (to the left in Fig. 7), the ring member 45 slides on the other side in the sliding direction, and the engagement portion 46 is disengaged from the engagement recess 32U. This allows the headrest main body 20 to slide up and down relative to the stay 30, as shown in Fig. 8.

[0019] In addition, a so-called headrest support may be provided inside the support tube portion 41, which has such a slide connecting portion 42 and positioning mechanism 43 and supports the stay of a conventional headrest so that it can slide in the vertical direction and be positioned at multiple positions in the vertical direction, and is fixed to the seat back.

[0020] As shown in Fig. 9, the headrest 10 may be a headrest with a cover that includes a rear cover 50 that covers the stay connecting portions 40 on the rear surface of the headrest main body 20. The rear cover 50 shown in Fig. 9 has through holes 50H on its underside through which the stays 30 connected to the stay connecting portions 40 can be inserted. The rear cover 50 may be provided, for example, so as to cover substantially the entire rear surface of the headrest main body 20. Note that the headrest 10 may be provided with a cover that covers the entire headrest main body 20 (including the base member 21 and cushion member 22 in this embodiment).

[0021] As described above, the headrest 10 of this embodiment has an unconventional configuration, including the headrest main body 20 and the stay connector 40 to which the stay 30 can be connected, with the stay connector 40 being provided on the rear surface of the headrest main body 20. In conventional headrests, the stays are embedded and fixed in the headrest main body. Therefore, for example, if a defect (e.g., molding defect) occurs in the headrest main body during molding, it can be difficult to remove and reuse the stays alone, or the stays must be discarded. In contrast, in the headrest 10 of this embodiment, the stays 30 are detachably connected to the stay connector 40, so that even if a defect occurs in the headrest main body 20, the stays 30 alone can be removed and reused. Furthermore, in conventional headrests, embedding and fixing the stays requires the use of a large amount of material for the headrest main body. This can result in problems such as a bulky headrest main body and limited freedom in design of the headrest main body. In contrast, in the headrest 10 of this embodiment, the stay connection portion 40 that connects to the stay 30 is provided on the rear surface of the headrest main body 20, so compared to conventional headrests that require the stay to be buried inside, it is possible to make the headrest more compact, reduce the amount of material used, and increase the freedom of design.

[0022] [Other embodiments] 10, the stay connecting portion 40 may have a reinforcing member 48 bridging between a pair of support tube portions 41. When the base member 21 is provided on the headrest main body 20, the reinforcing member 48 is preferably fixed to the rear surface of the base member 21. By providing the reinforcing member 48 in this way, the headrest main body 20 can be reinforced, and the head of a seated occupant can be sufficiently supported even if, for example, the base member 21 is made of resin or is thin.

[0023] The shape of the stay 30 is not limited to the shape in the above embodiment. For example, the stay 30 may be configured such that the upper portions of the pair of second bars 32 are bent forward so that the headrest main body 20 can be received from the rear by the first bar 31. In this configuration, the headrest main body 20 is supported from the rear by the stay 30, thereby making it possible to more stably support the headrest main body 20. Furthermore, the stay 30 may be configured to include only a pair of second bars 32, or may be configured to include only one second bar 32 (for example, in the horizontal center of the rear surface of the headrest main body 20).

[0024] The seat 90 may be a so-called bucket seat shaped to encase the body of the seated occupant (see FIGS. 11 and 12). For example, the bucket seat may have a structure in which a headrest 10 is provided in a vertically slidable manner on the front surface of a seat back 92 that extends upward to the position of the seated occupant's head. In such a structure, for example, a stay 30 is provided on the front surface of the seat back 92 in the form of a rail that extends in the vertical direction, and a stay connecting portion 40 on the rear surface of the headrest main body 20 is slidably connected to the stay 30 (see FIG. 12).

[0025] The seat 90 in which the headrest 10 is used may be one placed in a building (for example, a reclining seat, etc.). The headrest 10 may also be used in a chair placed in a building (for example, a massage chair, a barber chair, a beauty chair, etc.).

[0026] The headrest 10 may be configured such that the stay connecting portion 40 is connected to the stay 30 in a non-slidable manner.

[0027] The configuration of the headrest main body 20 is not limited to that of the above embodiment. The base member 21 does not have to be plate-shaped, and may be, for example, a metal pipe that has been flattened.

[0028] <Additional Notes> The following describes the features extracted from the above embodiment, while indicating, as necessary, the effects, etc. Note that, for ease of understanding, the corresponding configurations in the above embodiment are indicated in parentheses as appropriate below, but these features are not limited to the specific configurations indicated in parentheses.

[0029] For example, the following features of the present disclosure can be considered to have been conceived in relation to a headrest, with the objective of "providing a novel headrest" in view of the background art that states, "A headrest in which a headrest stay is embedded and fixed is known (for example, JP 9-267679 A (Fig. 1, etc.))." There has long been a demand for the development of new technologies related to headrests and the emergence of novel headrests.

[0030] [Feature 1] A headrest body, a stay connecting portion to which a headrest stay (stay 30) can be connected, The stay connecting portion is provided on the rear surface of the headrest body.

[0031] [Feature 2] The stay connection portion is a slide connecting portion that is connected to the headrest stay so as to be slidable in the up and down direction; a positioning mechanism that engages with the headrest stay at a plurality of positions in the up-down direction and restricts sliding of the slide connecting portion relative to the headrest stay; 2. The headrest according to claim 1, wherein

[0032] [Feature 3] The headrest body is a base member to which the stay connecting portion is fixed on a rear surface; a cushion member that is overlaid on the front surface of the base member; 3. The headrest according to feature 1 or 2,

[0033] [Feature 4] The headrest stay has a pair of bars (second bars 32) extending parallel to each other, The stay connection portion is a pair of support tube portions connected together with the pair of bars passing through them in the vertical direction; a reinforcing member bridging the pair of support tube portions; 4. The headrest according to any one of features 1 to 3, wherein:

[0034] [Feature 5] The headrest stay is provided, The headrest stay has a shape in which a pair of second bars hang down from both ends of a first bar extending in the horizontal direction, and at least one of the pair of second bars has a plurality of engagement recesses at a plurality of positions in the vertical direction, A headrest described in any one of Features 1 to 3, wherein the stay connection portion is connected to the pair of second bars so as to be slidable in the vertical direction and engages with one of the plurality of engagement recesses to restrict sliding of the stay connection portion relative to the headrest stay.

[0035] [Feature 6] A headrest according to any one of features 1 to 3, further comprising a rear cover that covers the stay connection portion and has a through hole on its underside through which a headrest stay connected to the stay connection portion can be inserted.

[0036] Although the present specification and drawings disclose specific examples of the technology included in the scope of the claims, the technology described in the claims is not limited to these specific examples, but also includes various modifications and variations of the specific examples, and also includes parts of the specific examples taken out alone. [Explanation of symbols]

[0037] 10 Headrest 20 Headrest body 21 Base member 22 Cushion member 30 Stay 31 First Bar 32 2nd Bar 32U Engagement recess 40 Stay connection part 41 Support cylinder part 41H through hole 42 Slide connection part 43 Positioning mechanism 44 Operation buttons 45 Ring member 46 Engagement part 47 Actuation means 48 Reinforcement member 50 rear cover 50H through hole 90 sheets 92 seat back 92H Stay insertion hole

Claims

1. A headrest body, a stay connecting portion to which the headrest stay can be connected, The stay connecting portion is provided on the rear surface of the headrest body.

2. The stay connection portion is a slide connecting portion that is connected to the headrest stay so as to be slidable in the up and down direction; a positioning mechanism that engages with the headrest stay at a plurality of positions in the up-down direction and restricts sliding of the slide connecting portion relative to the headrest stay; The headrest of claim 1 , comprising:

3. The headrest body is a base member to which the stay connecting portion is fixed on a rear surface; a cushion member that is overlaid on the front surface of the base member; The headrest of claim 1 , comprising:

4. The headrest stay has a pair of bars extending parallel to each other, The stay connection portion is a pair of support tube portions connected together with the pair of bars passing through them in the vertical direction; a reinforcing member bridging the pair of support tube portions; 4. The headrest according to claim 1, further comprising:

5. The headrest stay is provided, The headrest stay has a shape in which a pair of second bars hang down from both ends of a first bar extending in a horizontal direction, and at least one of the pair of second bars has a plurality of engagement recesses at a plurality of positions in the up-down direction, The headrest according to any one of claims 1 to 3, wherein the stay connecting portion is connected to the pair of second bars so as to be slidable in the vertical direction, and engages with one of the plurality of engagement recesses to restrict sliding of the slide connecting portion relative to the headrest stay.

6. 4. The headrest according to claim 1, further comprising a rear cover that covers the stay connecting portion and has a through hole in a lower surface thereof through which a headrest stay connected to the stay connecting portion can be inserted.

Images