JPH09215551A - Headrest for automobile - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an inexpensive headrest that can easily set the hardness of a pillow part in accordance with a king of a vehicle or the like, having components which can be easily separated from each other so as to be convenient for recycling use. SOLUTION: This headrest for an automobile is composed of a pillow part consisting of a front half in which a foamed material body 41 is laid at the front surface 31f of a plate 31, and is covered over its outer surface with a facing 51 having one end 51e fixed to the rear surface 31b of the plate, and a rear half 61 mated with the front half, and a stay 71 fixed thereto with the rear half 61.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an automobile headrest.

[0002]

2. Description of the Related Art An automobile is provided with a headrest in order to protect the head of an occupant. In this headrest, as shown in the sectional view of FIG. 6, a pillow portion 83 in which the surface of a synthetic resin foam 81 is covered with a surface material 82 such as a fabric, and an upper portion 86 is embedded in the foam 81. In many cases, the lower portion 87 is composed of a metal stay 85 protruding from the bottom surface 84 of the pillow portion 83. The pillow portion 83 abuts on the head of the occupant to support the occupant's head, while the stay 85 is inserted through the upper part of the backrest of the seat to attach the headrest 80 to the seat.

The headrest 80 having the above structure
Is formed by injecting a foaming raw material into a foaming molding die in which the upper portion of the stay 85 is arranged to form a pillow-shaped foam body 81 (so-called bare headrest) bonded to the stay 85, and then comprising a fabric or the like. This is done by covering the foam 81 with the surface material 82, or by disposing the surface material 82 together with the stick 85 in the molding die and injecting a foaming raw material into the surface material 82 to form the stick 85 and the stick 85. Pillow-shaped foam 81 adhered to surface material 82
It is made by foam molding. These methods are usually called integral foam molding.

However, since the headrest molded by the integral foam molding fills the inside of the surface material 82 with the foam 81, the amount of foaming raw material used to form the foam 81 cannot be reduced. Moreover, since the foaming raw material is relatively expensive, it is difficult to reduce the cost of the headrest. In addition, there is a problem that the device for the integral foam molding is expensive.

In addition, in automobile parts, recycling has been promoted in recent years. In this recycling, automobile parts are separated for each material, for example, a metal member and a plastic member, and another product or member is molded from each material for reuse. This request for recycling is no exception in headrests.

However, in the conventional headrest having the above-mentioned structure, since the metal stay 85, the synthetic resin foam 81 and the surface material 82 such as fabric are firmly adhered, the separation work is not easy. There wasn't. for that reason,
There is a problem that recycling is time-consuming and economically disadvantageous, or that recycling cannot be performed satisfactorily because it cannot be completely separated.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and provides a vehicle headrest which is advantageous in terms of cost, easy to separate members, and convenient for recycling. It is provided.

[0008]

According to the present invention, there is provided a pillow portion including a front half body and a rear half body, and a stay having an upper portion mounted in the pillow portion and a leg portion protruding from a bottom surface of the pillow portion. In the vehicle headrest, the front half body has a plate on the back surface of which an engaging portion with the rear half body is formed, a foam body disposed on the front surface of the plate, and the foam body. And an end portion formed of a bag-shaped skin fixed to the back surface of the plate, while the rear half body has an engaging portion with the front half body on the front surface, and has a rear shape of the pillow portion. The front half body and the rear half body are united by the engagement of the both engaging portions, and the upper part of the stay is fixed between the front half body and the rear half body. It is characterized by

[0009]

DETAILED DESCRIPTION OF THE INVENTION The present invention will be described in detail below with reference to the accompanying drawings. 1 is a perspective view of an automobile headrest according to an embodiment of the present invention, FIG. 2 is a sectional view taken along line 2-2 of FIG. 1, FIG. 3 is an exploded perspective view of the automobile headrest, and FIG. 4 is an automobile. FIG. 5 is a cross-sectional view showing the assembling of a vehicle headrest, and FIG. 5 is an exploded perspective view of a vehicle headrest according to another embodiment of the present invention.

The automobile headrest 10 shown in FIGS. 1 to 3 comprises a pillow portion 11 and a stay 71. The pillow portion 11 is for contacting the head of the occupant to support the head of the occupant, and includes a front half body 21 and a rear half body 61.

The front half 21 constitutes the front side of the pillow portion 11, that is, the contact side with the head of the occupant, and the plate 31 and the foam 41 are well understood from FIGS. 2 and 3. And the skin 51. Plate 31
Is a back surface portion of the front half body 21, and is made of a plastic plate-like body formed by injection molding of plastic or the like, and an engaging portion 32 and a stay attaching portion 36 are formed on the back surface 31b. . In addition, this plate 31
The material is a hard plastic such as polypropylene, polyethylene, ABS.

The engaging portion 32 engages with an engaging portion 62 of a rear half body 61, which will be described later, to combine the front half body 21 and the rear half body 61. The engagement portion 32 of this embodiment includes a rear surface 31 of the plate 31 as best understood from FIG.
The shaft portion 33 protruding from b and the substantially conical enlarged portion 34 formed at the tip thereof are provided so as to facilitate and ensure engagement with the rear half body 61 and the enlarged shaft portion 33 and the enlarged portion. A slit 32A is formed in the portion 34 along the direction of the shaft portion 33. The position and the number of the engaging portions 32 are not limited to those in this embodiment, and may be appropriately determined.

The stay attaching portion 36 is a portion for fixing the stay 71 to the back surface 31b of the plate 31. As shown in FIGS. 3 and 4, the stay attaching portion 36 of this embodiment has a groove 37 having a semicircular cross section in which the upper portion 72 of the stay 71 fits on the back surface 31 b of the plate 31.
It is formed in a substantially “gate” shape in conformity with the upper shape of No. 1, and the stay locking pieces 38 are provided upright on the upper and left and right side portions of the groove portion 37.

The stay retaining piece 38 sandwiches the upper portion of the stay 71 arranged in the groove portion 37 to sandwich the upper portion 72 of the stay 71.
Is securely fixed in the groove portion 37, and two elastic holding pieces 3 that are erected on the back surface of the plate 31 with the groove portion 37 interposed therebetween are provided.
It consists of 8A and 38B. These elastic holding pieces 38A, 38B
Is curved in an arc shape so that the stay can be securely held.

The foam body 41 has a front surface 31f of the plate 31 for absorbing a shock to the head of an occupant in the event of an automobile collision.
Which has a predetermined thickness and has a rear surface 41
b is made of polyurethane resin foam, foamed polyethylene, foamed polypropylene or the like having substantially the same shape as the front surface 31f of the plate 31. The foam 41 may be formed by cutting or the like from a separately molded large foam, or may be molded.

The skin 51 holds the foam body 41 on the plate 31, protects the foam body 41, and improves the appearance of the pillow part. The skin 51 covers the foam body 41 on the front surface of the plate 31 and the end of the skin body 51 is covered. The portion 51e has a bag shape having a size that is folded back toward the back surface 31b of the plate 31. A hole 53 is formed in an end portion 51e of the outer skin 51 at a position corresponding to the engaging portion 32 of the plate 31, and the outer skin 51 can be fitted into the engaging portion 32 of the plate 31 to form the outer skin 51. Are attached to the foam 41 and the plate 31. Further, notches 52 (shown in FIG. 3) are formed at the four corners of the skin end portion 51e, so that wrinkles are less likely to occur at the folded-back portions at the four corners. As the outer skin 51, a flexible material such as a fabric or a plastic sheet is sewn into a desired bag shape.

The end portion 51e of the outer skin 51 is a plate 31.
The back surface 31b of the plate is folded back to the back surface 31b side of the
The foam body 41 is fixed to the front surface 31f of the plate by being sandwiched between the front surfaces 61f of the rear half bodies 61, which will be described later.

The rear half body 61 is for concealing the back surface 31b of the plate 31 of the front half body 21 and the end portion 51e of the outer skin 51, and for fixing and concealing the upper portion of the stay 71. The rear half body 61 is made of a plastic molded product formed in the rear half shape of the pillow portion 11, and has an engaging portion 62 and a stay accommodating portion 66 on the front surface 61f. The rear half body 61 is made of a hard plastic such as polypropylene, polyethylene, ABS or the like, like the plate 31, and a hollow one formed by blow molding of plastic as in this embodiment, It is preferable because it is excellent in lightness and can obtain appropriate rigidity.

The engaging portion 62 of the rear half body 61 is for engaging with the engaging portion 32 of the plate 31 to combine the rear half body 61 and the front half body 21. In this example, the hole 63 that can be engaged with the engaging portion 32 is used. The diameter of the hole 63 is the same as the engaging portion 32 of the plate 31.
The diameter is preferably slightly smaller than the conical enlarged portion 34 at the tip. Then, when the front half body 21 and the rear half body 61 are united, the engaging portion 32 of the plate 31 is elastically deformed and inserted into the hole 63, and after the insertion, the engaging portion 32 is restored to surely engage with the hole 63. You can

The stay housing portion 66 is a portion of the stay 71 protruding from the groove portion 37 of the plate 31 of the front half body 21 and the stay locking portion when the rear half body 61 and the front half body 21 are united. 38 is a groove for accommodating 38.

The stay 71 is for mounting the headrest 10 on the backrest, and is made of a metal hollow pipe or a solid rod bent in a substantially U-shape. The upper portion 72 of the stay 71 is attached to the stay mounting portion 36 of the plate 31 and is arranged inside the pillow portion 11, while the lower leg portions 73, 73 project from the bottom surface of the pillow portion 11 to the seat. It becomes a mounting part.

Here, an assembly of the automobile headrest 10 having the above structure will be described with reference to FIGS. 3 and 4. First, the stay mounting portion 36 of the plate 31
Then, attach the stay 71. The stay 71 is attached by pushing the upper portion of the stay 71 between the elastic holding pieces 38A, 38B of the stay locking portion 38.

Next, the plate 3 to which the stay 71 is attached
The foam body 41 is arranged on the front surface 31 f of No. 1 and the skin 51 is covered from the front side of the foam body 41 and the plate 31. Then, the end portion 51e of the skin shown by the chain double-dashed line in FIG. 4 is folded back toward the back surface 31b of the plate 31, and the hole 5 of the skin end portion 51e is formed.
By engaging 3 with the engaging portion 32 of the plate 31, the skin end portion 51e is fixed to the back surface 31b of the plate 31. This forms the front half 21.

Subsequently, the engaging portion 32 of the front half body 21.
The engaging portion 62 formed on the front surface 61f of the rear half body 61.
The front half body 21 and the rear half body 61 are united by inserting and engaging with each other. At that time, the end portion 5 of the skin 51
1e is sandwiched between the back surface 31b of the plate 31 and the front surface 61f of the rear half body 61. As a result, FIG. 1 and FIG.
The headrest 10 shown in is obtained.

On the other hand, when the automobile headrest 10 is to be reused by scrapping an automobile or the like, after the front half body 21 and the rear half body 61 are forcibly separated, the front half body 21 is further divided into respective members. Just separate them. That is, first, a thin metal fitting such as a screwdriver is inserted between the front half body 21 and the rear half body 61 to forcefully force the front half body 21.
And the rear half 61 are separated. Next, the hole 53 at the end of the skin 51 is removed from the engaging portion 32 of the plate to remove the skin 51 from the plate 31, and the skin 51, the foam 41, and the plate 3 are removed.
Separate 1 Then, the stay 71 is removed from the stay mounting portion 36 of the plate 31. By the above method,
Since each member can be easily separated, each member can be recycled.

Also, in the above embodiment, the stay attaching portion 3
6 is provided on the plate 31 of the front half body 21, but conversely, is provided on the front surface of the rear half body 61 (a combined surface with the front half body 21), or the elastic holding pieces 38A, 3 as described above.
The mounting portion 36 having 8B is provided on both the back surface 31b of the plate 31 of the front half body 21 and the front surface 61f of the rear half body 61, and the elastic holding pieces protruding from both half bodies 21, 61 allow the stay 71 to be attached. The upper part may be sandwiched to more securely fix the space between the front half body 21 and the rear half body 61.

Further, in the above embodiment, the plate 3
An example in which the stay 71 is detachably attached to the stay attaching portion 36 of No. 1 has been shown, but in the present invention, the stay 71 is integrally formed with the stay attaching portion 36A of the plate 31A as in the automobile headrest 10A shown in FIG. It may be fixed. The plate 31A integrated with the stay 71 as in this example can be easily molded by placing the stay 71 in an injection molding die and injection-molding the plate 31A. In addition, this car headrest 1
At 0A, the stay attachment portion 36A of the plate 31A and the back half 6 that houses the stay attachment portion 36A
The structure of the stay housing portion 66A of 1A is different from that of the automobile headrest 10 described above, but other members, that is, the foam 41, the skin 51, and the stay 71 are the same as those described above.

In this automobile headrest 10A, it becomes difficult to separate the stay 71 and the plate 31A, but other members, that is, the foam 41, the skin 51,
Since the rear half body 61 can be separated, it becomes easy to recycle them.

Further, the fixing of the end portion of the outer skin 51 is not limited to the one using the pin-shaped engaging portions 32, 32A provided upright on the rear surface of the front half plate 31, 31A as described above. Tuckers may be attached to the peripheral edges of the back surfaces of 31, 31A.

Further, the headrest for an automobile of the present invention can be applied to a so-called perforated headrest in which a hole is formed in the center of the pillow portion so as to penetrate therethrough in the front-rear direction. In that case, the plates 31, 31A, the foam 41, and the rear halves 61, 6
In 1A, a through-hole is formed in a portion inside the stay 71, and the outer skin 51 is an annular bag-like member having a hole in a portion corresponding to the hole.

[0031]

As shown and described above, in the automobile headrest of the present invention, since the relatively expensive foam is used only on the front side of the pillow, the foam is distributed over the entire pillow. The cost is lower than that of conventional products. Moreover, the automobile headrest of the present invention is not an integral foam molded article,
Since the foam formed separately from the skin or the like is combined with the skin or the stay, the expensive integrated foaming equipment is not required, which is also economical in this respect. Further, since the foamed body is present on the front side of the pillow portion up to the side portion, the occupant feels good when touching the pillow portion.

When the hardness of the pillow portion is made to differ depending on the type of automobile, the foaming raw material is poured into a mold in which a skin, a stay or the like is placed in the integrally foamed molded article to form the pillow portion. In this case, since the foaming raw material is changed, the foaming condition is complicatedly changed due to the change of the foaming raw material due to the influence of the skin and the stickiness. Therefore, it is not easy to mold the pillow portion having the desired hardness. However, in the automobile headrest of the present invention, since the foam formed separately from the skin and the stay can be used, there is no problem in the foam-integrated skin-molded article, and the hardness of the pillow portion is reduced. It can be set freely. Further, if the present invention is applied to a so-called perforated headrest, which has a donut-shaped pillow portion having a hole in the center of the pillow portion, the effect is great.

Further, in the automobile headrest according to the present invention, since the respective members are engaged with each other, it is easy to separate the respective members at the time of reuse.

[Brief description of drawings]

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

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is an exploded perspective view of an automobile headrest.

FIG. 4 is a cross-sectional view showing an assembling process of an automobile headrest.

FIG. 5 is an exploded perspective view of an automobile headrest according to another embodiment of the present invention.

FIG. 6 is a cross-sectional view showing an example of a conventional headrest.

[Explanation of symbols]

 10: Headrest for automobile 11: Pillow part 21: Front half 31: Plate 32: Engagement part 41: Foam 51: Epidermis 51e: End of epidermis 61: Rear half 62: Engagement 71: Stay 72 : Top of sty 73: Leg of sty

Claims (1)

[Claims] 1. A pillow portion including a front half body and a rear half body,
A headrest for an automobile, comprising an upper part attached to the inside of the pillow part and a leg part protruding from a bottom surface of the pillow part, wherein the front half body has an engagement portion formed on the back surface with the rear half body. Plate, a foam body disposed on the front surface of the plate, and a bag-shaped skin whose end portion is covered with the foam body and fixed to the back surface of the plate, while the rear half body is , A plastic member formed in a rear shape of the pillow portion with an engaging portion for engaging with the front half body on the front surface, and the front half body and the rear half body are united by the engagement of the both engaging portions. And an upper part of the stay is fixed between the front half body and the rear half body.