JPH09121974A - Headrest for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a headrest which can easily separate members from one another, is convenient for reproductive use, and has adjustability for the inclining angle of the pillow part. SOLUTION: A headrest for use in a car is composed of a pillow shell formed by combining two shell halves 12, 22, a stay 30 whose horizontal part 31 is secured in the pillow shell removably and leg part 32 protrudes outward from the combined part of the two shell halves 12, 22, and a pad 40 which is fixed to the surface of the pillow shell. At the inner surfaces of the shell halves 12, 22, a pinching member 50 is installed removably, which is to pinch rotatably the horizontal portion of the stay and to fix the location, and in those parts of the shell halves 12, 22 where the stay leg is protruding, recesses 17, 27 for rotation of the stay leg are formed in the direction perpendicular to the combined part of the shell halves 12, 22.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile headrest, and more particularly to a retractable headrest that can be easily disassembled for recycling.

[0002]

2. Description of the Related Art An automobile is provided with a headrest for protecting a passenger's head. As shown in FIG. 11 showing the cross section, most of the headrests are composed of a pillow-shaped pillow portion 73 and a metal stay 76. The pillow portion 73 has a surface of a synthetic resin foam 71 covered with a surface material 72 such as a fabric, and abuts on the head of an occupant to support the head. Also, the metal stay 7
6, the upper part 74 is fixed inside the foam 71 and the lower part projects from the bottom surface 75 of the pillow part 73, and is inserted into the upper part of the backrest of the seat to attach the headrest 70 to the seat.

In the molding of the headrest having the above structure, a foaming raw material is injected into a foaming mold in which the upper portion of the stay is arranged, and a pillow-shaped foam body firmly bonded to the stay is molded, and thereafter, It is made by covering the foam with a surface material such as fabric, or by arranging the surface material together with the stay in the molding die, foaming the pillow-shaped foam firmly adhered to the stay and the surface material. It is made by molding.

By the way, in recent years, recycling of automobile parts has been promoted. In this recycling, automobile parts are separated for each material such as a metal part or a plastic part, and another part or product is molded from each material for reuse. This request for recycling is no exception in headrests.

However, in the conventional headrest, since the metal stay, the foam, and the surface material are firmly adhered to each other, the separation work is not easy. for that reason,
Recycling may be time-consuming and economically disadvantageous, or it may not be possible to completely separate it, resulting in unsatisfactory recycling. Further, in the retractable headrest capable of appropriately changing the inclination angle of the pillow portion, there is a problem that the inclining mechanism is complicated and the disassembling work is troublesome.

[0006]

SUMMARY OF THE INVENTION The present invention has been proposed in view of the above problems, and provides a retractable automobile headrest which facilitates separation between members and is convenient for recycling. Is what you are trying to do.

[0007]

That is, the present invention provides:
A hollow pillow shell formed by combining two half shells made of plastic, and a leg in which an upper horizontal portion is detachably fixed in the pillow shell, and legs extending downwardly from both ends of the horizontal portion. A hollow or solid rod-like sticky part of which protrudes from the middle of the shell half part to the outside and a pad material attached to at least the head contact surface of the pillow shell surface A holding member for holding the horizontal portion of the stay rotatably on the inner surface of the shell half body and for fixing the inclination of the pillow shell with respect to the stay by frictional resistance between the horizontal portion and the side surface of the horizontal portion. Is detachably provided, and a recess for rotating the stay leg is formed in a portion of the combination of the shell halves where the stay leg protrudes in a direction orthogonal to the combination of the shell halves. According to automotive headrests, characterized in that it is.

[0008]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. 1 is a front view of an automobile headrest according to an embodiment of the present invention, FIG. 2 is an exploded perspective view thereof,
3 is a sectional view taken along line 3-3 of FIG. 1, and FIG.
4 is a sectional view taken along line -4, FIG. 5 is a sectional view showing an example of the engaging means, FIG. 6 is a sectional view showing the engaged state, FIG. 7 is an enlarged sectional view of the pad material, and FIGS. FIG. 10 is a perspective view showing a state where the bodies are combined, and FIG. 10 is a perspective view showing another example of the sandwiching member.

As shown in FIGS. 1 to 4, an automobile headrest 10 of this embodiment comprises a pillow shell 11, a stay 30, and a pad member 40.
Can be rotated at an appropriate angle with respect to the stay 30, and the inclination angle thereof can be fixed by a sandwiching member 50 provided in the pillow shell 11.

The pillow shell 11 is made hollow by joining two shell halves 12 and 22, which are formed by injection molding of plastic or the like and have an inner concave shape, with their concave surfaces facing each other. It is a thing. The outer shape of the pillow shell 11 may be a bale shape, a lunch box shape, or the like in addition to the illustrated pillow shape. The material used for the shell halves 12 and 22 is a plastic having rigidity that does not deform due to the pressure of the occupant's head in normal times, and is preferably polypropylene, polyethylene, ABS resin or the like. In the pillow shell 11, a horizontal portion 31 above the stay 30 is detachably fixed.

The stay 30 will now be described. The stay 30 is for mounting the headrest 10 on the seat back, and as shown in FIG. 2, a horizontal portion 31 rotatably fixed in the pillow shell 11 and both ends of the horizontal portion 31. It is made of a metal hollow or solid rod-shaped body bent and formed in a substantially U-shape by the two legs 32, 32 that extend by bending. A notch 33 is formed on a lower side surface of the leg portion 32 of the stay 30 to hold a headrest 10 at a desired height by engaging with a clip (not shown) mounted on an upper portion of the backrest of the seat. . A plurality of the notches 33 are formed, and the height of the headrest 10 can be finely adjusted.

Inner surfaces 13,2 of the shell halves 12,22
3, the stay holding portions 14 and 24 are provided. The stay holding portions 14 and 24 have recesses 15 and 25 into which the upper portion of the stay 30 is detachably fitted, and by combining the shell halves 12 and 22, the recess 15 and
The horizontal portion 31 of the upper portion of the stay 30 is held between the 25.

The pillow portion shell 11 is formed by sandwiching the horizontal portions 31 of the stay 30 on both sides of the stay holding portion 14.
A holding member 50 for fixing the inclination of the is provided. The holding member 50 is made of block-shaped rubber or foam, and is detachably attached to an open box-shaped holding member attachment portion 53 provided on the inner surface of the shell half body 12, as shown in FIG. Has been. The holding member 50 is a horizontal portion 3 of the stay.
It has a holding part 51 through which 1 is inserted. The holding part 5
1 is formed to be slightly smaller than the diameter of the horizontal portion 31 of the stay 30, and the horizontal portion 31 is formed inside through the cutout portion 52.
Is detachably and rotatably inserted and held.

According to this sandwiching member 50, the elasticity of the sandwiching portion 51 presses the side surface of the horizontal portion 31 of the stay to rotatably sandwich it, and the inner surface of the sandwiching portion 51 and the horizontal portion 31.
The horizontal portion 31 is fixed by the frictional resistance with the side surface, thereby fixing the inclination of the pillow shell 11 with respect to the stay 30. In addition, one or a plurality of the sandwiching members 50 can be provided in the pillow shell 11 depending on the type of the headrest. In this embodiment, one is provided on each side of the stay holding portions 14 and 24.

In addition, in the combination portions 16 and 26 of the shell half bodies 12 and 22, the stay leg rotating recesses 17 and 27 are formed at the bottom side of the pillow shell 11. The recesses 17 and 27 for rotating the stay legs are
The combination of the shell halves 12 and 22 forms an elongated hole that is orthogonal to the combination parts 16 and 26, and the leg portions 32 and 32 of the stay 30 project from the inside of the pillow shell shell 11 through the elongated hole. There is. As will be understood from FIG. 4, this elongated hole regulates the rotation width of the stay 30 and determines the maximum inclination angle of the pillow shell 11. Both shell halves 1
Positioning plates 18 and 28 that determine the left and right positions of the stay 30 are erected on the inner surfaces of the side portions of the rods 22 and 22. The positioning plates 18 and 28 sandwich the leg portions 32 and 32 of the stay 30 to prevent the stay 30 from shifting to the left and right.

Further, as shown in FIG. 5, engaging means 18a, 28a are preferably provided upright in the vicinity of the inner side of the combining portions 16, 26 of the two shell halves. The engagement means 18a and 28a are for maintaining the combined state of the two shell halves 12 and 22, and are preferably engageable and disengageable. For example, claws that can be engaged with each other,
There are combinations of pins and pin holes. In this embodiment,
A plate-like member having claw portions bent at opposite ends in opposite directions is formed on the opposite shell halves 12 and 22. Then, the shell halves 12 and 22 are combined and pressed against each other, so that the claw portions at the tips are engaged and the shell halves 12 and 22 are combined as shown in FIG. The claw portion can be disengaged by forcibly separating the shell half bodies 12 and 22 from each other.

On the other hand, on the outer surfaces of the shell halves 12 and 22,
Pad material mounting surfaces 19 and 29 are formed. The pad material mounting surfaces 19 and 29 are formed in a concave shape having a step corresponding to the thickness of the pad material with respect to the surroundings, and when the pad material is mounted on this surface, the edges of the pad material are hidden. The feeling of unity between the pad material and the pillow shell 11 is enhanced, and the appearance of the headrest is improved. The pad material mounting surfaces 19 and 29 are provided on the outer surface of at least one shell half of the pillow shell 11 with which the head of the occupant abuts. In the present embodiment, the pad material mounting surfaces 19 and 29 are provided in the vertical direction of both shell halves 12 and 22, and the pad material 40 is wound around the outer surface of the pillow shell 11 as shown in the figure.

In the combination portion on the bottom side of the pillow shell 11, pad material recesses 19a, 29a are formed continuously from the pad material mounting surfaces 19, 29. As shown in FIG. 3, the recesses 19a and 29a for the pad material guide the vicinity of both ends of the pad material 40 wound around the pad material mounting surfaces 19 and 29 into the shell halves 12 and 22, and both shells. It is a portion sandwiched by a combination of the halves 12 and 22. Thereby, the pad material 40
It is possible to prevent the two shell halves 12 and 22 from opening due to the impact resilience. The pad material mounting surface 19,
29 and the pad material recesses 19a, 29a are formed to have appropriate dimensions according to the width and thickness of the pad material 40 used.

The pad material 40 is for cushioning the head, and as shown in FIG. 7, it comprises a cushion body 41 such as soft urethane foam and a surface material 42 such as a fabric covering the surface thereof. . This pad material 4
0 has a width and a length that can cover the pad material mounting surfaces 19 and 29, and in this embodiment, a futon-like shape which is several cm longer than the entire circumference of the pad material mounting surface of the pillow shell 11. What is used. The thickness of the pad material 40 is set to be appropriate according to the required cushioning property. The surface material 42 may be provided on the entire circumference including the back surface of the cushion body 41.

The outer surfaces of the shell halves 12 and 22 are preferably embossed on the portions other than the pad material mounting surfaces 19 and 29. This part is pad material 40
Since it is exposed without being covered with, the appearance of the headrest can be further improved by forming a grain pattern. Also, in the above embodiment, both shell halves 1
Although 2 and 22 show an example in which they are separated from each other, they may be connected via a hinge.

Next, a procedure for assembling the headrest 10 from the above members will be described. First, as shown in FIG. 2, both shell halves 12 and 22 are brought close to the back surface side of the pad member 40 with their insides facing upward, and the stay leg rotating recesses 17 and 27 are provided at both ends of the pad member 40. It is placed toward 43. At that time, the pad material mounting surface 1
The positional relationship between the two shell halves 12 and 22 and the pad material 40 is adjusted so that the pad material 40 is located at 9, 29.

Subsequently, as shown in FIG. 8, the holding member 50.
The horizontal portion 31 of the stay 30 is inserted into the sandwiching portion 51 via the notch portion 52. The holding member 50 holds the stay 30 while holding the holding member mounting portion 5 of the shell halves 12, 22.
3 attached. And the leg 32 of the stay 30
From the recess 17 for rotating the stay leg portion to the outside of the shell half body. Then, as shown in FIG. 9, both ends 43 of the pad material 40 are removed from the pad material recesses 18 and 28 formed in the shell halves 12 and 22.
The shell halves 12, 22 by bending the inner half of the shell 22, 22
Install it inside and fix it. The fixing is performed by tacking the both ends 43 of the pad member 40 to the inner surface of the shell half body, or by piercing the both ends 43 of the pad material with a pin (not shown) provided upright on the inner surface of the shell half body.

Next, the shell halves 12 and 22 are assembled with the horizontal portions 31 of the stays 30 held inside, with the recessed sides facing each other. Then, the shell halves 12 and 22 are pressed against each other, and the engaging means 18a,
By engaging 28a, the combined state is fixed.

Headrest 1 thus formed
0 is attached to the seat back via the stay 30. Then, when adjusting the inclination of the pillow shell 11, the pillow shell 11 is rotated back and forth with a somewhat large force,
The force applied to the pillow shell 11 is released when the pillow shell 11 reaches the desired inclination angle. Thereby, the inclination of the pillow shell 11 is fixed by the frictional resistance between the horizontal portion 31 of the stay 30 and the sandwiching member 50 that sandwiches the horizontal portion 31.

On the other hand, when it becomes necessary to recycle the headrest 10 due to the scrapping of an automobile or the like, a tool having a thin tip such as a screwdriver is attached to the combination portions 16 and 26 of the shell half bodies 12 and 22. The shell halves 12 and 22 are separated by inserting and prying. This allows the stay 30 to be removed from the shell halves 12, 22. In addition, the pad material 40
With respect to, the both ends are torn off from the tucker needle, and then the tucker needle is pulled out with pliers, or in the case of pinning, both ends of the pad material 40 are removed from both shell halves 12 and 22. be able to. Therefore, each member can be easily separated, and each member can be reused.

FIG. 10 shows another example of the holding member. The holding member 60 is made of a metal leaf spring having a substantially U-shaped cross section, and has an edge 61 bent outward so as to rotatably hold the horizontal portion 31 of the stay. ing.

[0027]

As shown and described above, according to the headrest for an automobile of the present invention, the pillow shell is made of a combination of two shell halves, and the stay is detachably fixed to the pillow shell. ing. The pad material is on the outer surface of the pillow shell and is not bonded to the stay in the pillow shell. Therefore, when reusing the headrest, if the pillow shell is separated into two shell halves, the stay can be easily removed from the shell halves, and there is an advantage that the separation work can be performed easily. Moreover, the foldable mechanism of the pillow shell is configured such that the horizontal portion of the stay is rotatably and detachably held by the holding member detachably provided on the inner surface of the shell half body. Therefore, the pad material does not remain partially adhered to the stay, and the stay, the pillow shell, and the foam can be completely separated, and a good recycled product can be expected. Further, this inclinable mechanism does not complicate the headrest structure, and not only the separation at the time of recycling, but also the headrest assembly work is simple and economical.

Further, in the automobile headrest of the present invention, the pad material is wrapped around the outer surface of one shell half body or the outer surface of the pillow shell, and both ends of the pad material extend from the combined portion of the shell half bodies to the inside of the pillow shell. In the case where the both ends of the pad material are concealed and fixed, the pad material is fixed to the pillow shell only at both ends, so that the pad material can be easily torn off during separation. The pad material and the pillow shell can be separated.
Therefore, the pillow shell and the pad material can be easily separated for recycling. In addition, in the case where the pad material mounting surface has a concave shape and both ends of the pad material are introduced into the pillow shell from the combined portion of the shell halves, both ends and both sides of the pad material are hidden. The outer appearance of the headrest can be improved by increasing the sense of unity with the pillow shell and not seeing from the outside.

[Brief description of the drawings]

FIG. 1 is a front view of a vehicle headrest according to an embodiment of the present invention.

FIG. 2 is an exploded perspective view thereof.

FIG. 3 is a sectional view taken along line 3-3 in FIG. 1;

FIG. 4 is a sectional view taken along line 4-4 in FIG. 1;

FIG. 5 is a cross-sectional view showing an example of engagement means.

FIG. 6 is a sectional view showing the engaged state.

FIG. 7 is an enlarged cross-sectional view of a pad material.

FIG. 8 is a perspective view showing a combination of shell halves.

FIG. 9 is a perspective view showing a combination of shell halves.

FIG. 10 is a perspective view showing another example of a holding member.

FIG. 11 is a cross-sectional view of a general headrest.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Headrest 11 Pillow part shell 12 Shell half body 16 Combination part 17 Stay leg rotation recessed part 19 Pad material mounting surface 22 Shell half body 26 Combination part 27 Stay leg rotation recessed part 29 Pad material mounting surface 30 Stay 31 Horizontal part 40 Pad material 50 Holding member

Claims (5)

[Claims] 1. A hollow pillow shell formed by combining two shell halves made of plastic, and an upper horizontal portion is detachably fixed in the pillow shell, and the hollow pillow shell extends downward from both ends of the horizontal portion. A hollow or solid rod-shaped sticky member whose bent and extending leg portion protrudes from the middle of the shell half portion to the outside, and a pad material attached to at least the head contact surface of the pillow shell surface. And a horizontal portion of the stay is rotatably sandwiched on the inner surface of the shell half body, and the inclination of the pillow shell with respect to the stay is caused by frictional resistance between the horizontal portion and the side surface of the horizontal portion. A sandwiching member for fixing the shell half is detachably provided, and the portion where the stay leg portion projects in the combination portion of the shell halves extends in a direction orthogonal to the combination portion of the shell half body. Automotive headrests, characterized in that the recess of use is formed. 2. The headrest for an automobile according to claim 1, wherein the pad material comprises a cushion material and a surface material covering the surface of the cushion material. 3. The method according to claim 1, wherein the two shell halves have engaging means for engaging each other, and the engagement maintains the combination of the two shell halves. Headrest for automobiles. 4. The pad material according to claim 1, wherein a pad material is wound around the outer surface of one shell half body or the outer surface of two combined shell half bodies, and both ends of the pad material are shells. An automobile headrest, characterized in that it is introduced into a pillow shell from a combination portion of half bodies to conceal and fix both ends of the pad material. 5. The automobile headrest according to any one of claims 1 to 4, wherein the pad material mounting surface of the shell half is concave.