JP2604068Y2 - Skin integrated foam - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a foam-integral skin product having a folding stay such as a folding headrest attached to the upper end of a seat back of a vehicle or the like.

[0002]

2. Description of the Related Art A collapsible headrest or the like attached to the upper end of a seat back of an automobile or the like is provided with an insert base arranged in the epidermis with a collapsible stay protruding from the epidermis. A foam integrated with the skin, which is formed by integrally foaming the skin with the insert, is widely used. With respect to the foam-integrated skin having such a folding stay, the folding stay must be able to move freely with respect to the main body. For this reason, the opening 111 is provided in the tilting range of the base 11 so that the tiltable stay 12 can be tilted.
Is provided (FIG. 5). However, during foam molding,
The foamed raw material enters into the opening 111, causing a malfunction or the like that causes the internal tilting mechanism to malfunction. Therefore, in order to solve the above-mentioned problem, a conventional Japanese Patent Publication No. 5-668 has been proposed.
No. 44, a manufacturing method in which a plate-like elastic body is interposed so as to seal around the opening 111 (in the prior art 1)
As described in Japanese Patent Publication No. 5-62049, the opening 111
Manufacturing method of forming a cylindrical part around and sealing (prior art 2)
And other measures have been taken.

[0003]

[Problems to be Solved by the Invention] However, there has been a problem in any of the conventional measures. According to the prior art 1, a plate-shaped elastic body must be assembled each time a product is manufactured.
The work involved a lot of time and effort. And
The plate-like elastic body had to be managed as a separate part, which had problems in terms of workability and economy. Further, in the prior art 2, the base 11 of the insert 1 is made of a hollow plastic article (FIG. 5) formed by blow molding, injection molding, or the like, and its cylindrical portion is naturally made of plastic and is inferior in sealing performance. . Therefore, stable quality maintenance could not be achieved.

[0004] The present invention solves the above-mentioned problems and improves workability and productivity by not increasing the number of parts, and furthermore, completely prevents the foaming material from entering into the opening of the base, and stabilizes it. It is an object of the present invention to provide a skin-integrated foam product that can maintain quality.

[0005]

According to the first aspect of the present invention,
An epidermis formed in a bag shape, an insert whose base is set in the epidermis by disposing a folding stay outside the epidermis, and an epidermis and an insert formed by injecting a foaming material into the epidermis and foam molding. A laminated skin comprising a skin material forming an outer surface and an elastic sheet material adhered to the back surface of the skin material , wherein
The outer skin is configured, and further, the laminating is provided around an opening provided in the base so that the tiltable stay can be tilted.
The thickness of the elastic sheet material relating to the sheet skin is in the range of 4 to 10 mm.
The skin inside the enclosure is arranged to be larger than the thickness of the elastic sheet material of the other skin portion forming the bag-like skin , and
Starting from the through hole in the skin into which the stay is inserted,
A slot that is elongated in the direction in which the tiltable stay tilts.
The present invention provides a skin-integrated foam product characterized by providing a cutout.

[0006] The skin-integrated foam product according to the second aspect of the present invention is a contract product.
Claim 1. The skin material, wherein the skin forms the outer surface, and the skin material
And an elastic sheet material adhered to the back surface.
The sheet material is a foamed resin sheet material with open cells.
And features.

[0007]

According to the first aspect of the present invention, there is provided a laminated foam having a skin material whose outer surface forms an outer surface and an elastic sheet material adhered to the back surface of the skin material.
Because it is skin, it provides a soft feel and softness throughout. When the base of the insert is inserted into the skin and these are set in the foaming mold, the elastic sheet material of the laminated skin covers the opening of the base. Since the laminated skin is closed between the upper mold and the base of the foaming mold, the elastic sheet material is inevitably compressed, and the opening is sealed by applying pressure. The thickness of the elastic sheet material related to the skin arranged around the opening is in the range of 4 to 10 mm.
Set by greater than the thickness of the elastic sheet member according to another of the epidermis portion, pad elasticity of the elastic sheet member
It exerts kin performance and prevents the foaming material from entering the opening. When the foaming raw material is injected into the epidermis under such a set state, the foaming raw material does not enter into the opening of the base, and the epidermis,
It is molded into a foam integrated with the insert. Transparent
Cut long and narrow in the direction that the tiltable stay tilts from the hole
When the slit is inserted, the molded skin is integrated and foamed
The tilting operation of the folding stay in the product becomes smooth. Contract
Like the foam with integral skin according to the invention of claim 2,
If the foam material is a foamed resin sheet material with communication cells,
Foam gas generated during the foam molding process can be diffused through the skin
You.

[0008]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail based on embodiments. (1) Configuration of foam with integral skin FIGS. 1 to 4 show an embodiment of a foam with integral skin having a folding stay according to the present invention. This is applied to a retractable headrest. 1 is an overall perspective view of a commercialized headrest, FIG. 2 is a sectional view showing a state in which a skin and an insert are set in a foaming mold, FIG. 3 is a sectional view of a headrest after foaming molding, and FIG. It is a fragmentary sectional view of a headrest.

A headrest of a foldable type, which is a skin-integrated foam product A, is formed of an insert 1, a skin 2, and a foam 3 obtained by foaming and hardening a foaming material injected into the skin 2. The insert 1 includes a base 11 and two reversible stays 12 protruding from the inside of the base 11. Base 1
1 has a box shape as shown in FIG. 5 and incorporates an adjuster (not shown) that can adjust the angle of the tiltable stay 12. An opening 111 which is cut out in a substantially rectangular shape is formed on the upper surface side of the base 11 from which the tiltable stay 12 projects so that the tiltable stay 12 can be tiltably moved. The reversible stays 12, 12 are in the form of steel pipes, and most of them protrude outside a skin 2, which will be described later. The retractable stay 12 has a function of fixing the product headrest to the upper end of the seat back.

The skin 2 is made of a skin material 21 forming an outer surface.
And an elastic sheet material 22 attached to the back surface of the skin material 21
And a laminated skin consisting of It is a bag-shaped sewing skin. The skin material 21 is of the same material (made of fabric) and of the same thickness. However, although the same material (urethane foam slab) is used for the elastic sheet material 22, the thickness of the elastic sheet material 22 relating to the skin 2 a covering the periphery of the opening 111 of the base 11 is 7 m.
m (a preferred range is 4 to 10 mm), while the thickness of the elastic sheet material 22 relating to the other skin 1b is 3 mm.

The reason why the laminated skin is used as the whole skin 2 is to provide a soft touch feeling to the skin integrated foam A. The reason why the thickness of the portion of the elastic sheet material 22 related to the skin 2a is increased is to cover the opening 111 of the base 11 with the elasticity of the elastic sheet material 22 at the time of foam molding and to seal it.
When the thickness of the elastic sheet member 22 is less than 4 mm, the elastic deformation is reduced and the sealing function is reduced. On the other hand, if the thickness of the elastic sheet member 22 exceeds 10 mm, the sealing function is exhibited, but the appearance of the skin becomes difficult. A more preferable range is 6 to 8 mm.

In this embodiment, a fabric skin is used as the skin material 21. Alternatively, a foam material may be mixed with a soft vinyl chloride resin and formed into a predetermined bag shape by foam sol slash molding. Good. Also, the elastic sheet material 2
Although urethane slab (foamed polyurethane sheet) is used for 2, an elastic sheet material 22 made of polyethylene foam or the like may be used. Further, the laminated skins 2a, 2b
May be configured by laminating two or more different kinds of elastic sheet materials 22 and skin materials 21. As for the elastic sheet material 22, it is preferable to use a foamed resin sheet material in which cells are connected to each other than a closed-cell type. The foaming gas generated during the foam molding process of the foaming material is supplied to the opening 2.
7, in order to dissipate not only through the slit 24 but also through the epidermis 2a.

By the way, the skin 2a is provided with a slit 24 which is elongated in the direction in which the collapsible stay 12 is tilted starting from the through hole 23 (FIG. 4). This is because the tilting operation of the tiltable stay 12 becomes smooth. The length of the slit 24 slightly exceeds the tilting range of the tiltable stay 12. Reference numerals 25 and 26 denote tongue pieces formed by extending the edges of the skins 2a and 2b into the inside of the skin. By forming the tongue pieces 25 and 26, an opening 27 used when the base 11 of the insert 1 is set in the skin 2 or when the foam material is filled in the skin 2 is formed. The opening 27 is normally closed with the tongue pieces 25 and 26 joined together.

The foam 3 is obtained by injecting a foaming material between the skin 2 and the base 11, integrally molding the foam 2 and the base 11, and foam-curing the foam. After setting the skin 2 and the base 11 of the insert 1 in the foaming mold 5, the foaming material is poured from the opening 27 provided in the skin 2. In this embodiment, a foamed urethane resin is used as a foaming raw material.

In this embodiment, a laminated skin in which a thin elastic sheet material 22 is bonded is also used for the skin 2b.
The elastic sheet material 22 may be provided only on the skin 2a, and the skin 2b may be a laminated skin in which a breathable film is attached to a fabric or the like.

(2) Production of Skin-integrated Foam Product A production process of the above-mentioned foldable headrest as the skin-integrated foam product will be described. First, insert 1 and elastic sheet material 2
2 and a bag-shaped skin sewn using the laminated skins 2a and 2b having different thicknesses. Then, the collapsible stay 12 is inserted into the through hole 23 (or the slit 24) of the epidermis 2, and the base 11 is arranged in the epidermis 2. Next, these are placed in the foaming mold 5 (FIG. 2).

After setting the skin 2 and the insert 1 in the foaming mold 5 in this way, the mold is closed and foaming is performed.
In the foam molding, a predetermined amount of a liquid foaming material is poured into the skin 2 from the opening 27 using an injection nozzle (not shown) or the like.
Here, during foam molding, a clamping pressure acts between the upper mold 51 and the lower mold 52. This tightening pressure promotes the action of pressing the elastic sheet material 22 against the upper mold 51 and the base 11,
It prevents foaming material from entering between the base 11 and the elastic sheet material 22. In particular, the elastic sheet material 22 in the upper mold 51
Since the locking pawl (not shown) fixes the position of the reversible stay 12 so that the opening is in a compressed state, the elastic sheet material 22 is in close contact with the base 11 around the opening 111 and seals the opening 111. . Therefore, there is no room for the foaming material to enter the opening 111 during the foam molding process.

Thus, after a lapse of a predetermined time, the foaming raw material is foamed and hardened to form a foamed body 3, and a skin-integrated foamed product A is completed. The desired headrest can be obtained by removing the mold and removing it.

(3) Effects of the Embodiment The headrest as a skin-integrated foam according to the embodiment does not need to insert a plate-like elastic body or the like for sealing the opening 111 as in the conventional case, and the work is greatly performed. Be improved. In addition, since the number of parts is reduced, not only the management becomes easier, but also the cost can be reduced. Furthermore,
Since the opening 111 of the base 11 is covered by the elastic compression of the elastic sheet material 22 constituting the skin 2a, the elastic sheet material 2
The elasticity of 2 exerts the packing performance and completely covers the opening 111. Therefore, during the foam molding, the foaming material is
There is no danger of intrusion into 1. Thus, the skin 2a also contributes to quality improvement while providing a soft touch. And
The skins 2a and 2b are changed only in the thickness of the elastic sheet material 22, and the same skin material 21 is used, so that the product appearance is finished with good appearance.

In the present invention, the present invention is not limited to the embodiment described above, and various modifications can be made within the scope of the present invention according to the purpose and application. The shape, material, and the like of the insert 1, the skin 2, and the foam 3 are not limited to the embodiments. And it is widely applied not only to the headrest product but also to the foam integrated with the skin.

[0021]

[Effects of the Invention] As described above, the foam integrated with the skin according to the present invention also has a role of sealing the opening of the base with the elastic sheet material constituting the skin, so that a sealing part is not required. It not only improves workability and productivity, but also has excellent effects such as stabilizing product quality.

[Brief description of the drawings]

FIG. 1 is an overall perspective view of a commercialized headrest.

FIG. 2 is a sectional view showing a state in which a skin and an insert are set to foaming and molding.

FIG. 3 is a cross-sectional view showing a state in which foaming of a headrest has been completed by a foaming mold.

FIG. 4 is a partial cross-sectional view of a commercialized headrest.

FIG. 5 is an overall perspective view of an insert.

[Explanation of symbols]

 Reference Signs List 1 insert 11 base 111 opening 2 skin 21 skin material 22 elastic sheet material 2a skin 2b skin A skin integrated foam

Claims (2)

(57) [Scope of request for utility model registration] 1. An outer skin formed in a bag shape, an insert having a foldable stay disposed outside the outer skin and a base set in the outer skin, and a foaming material injected into the outer skin by foam molding. A skin-integral foamed article comprising a skin and an integrated foam with an insert , wherein the laminated skin comprises a skin material forming an outer surface and an elastic sheet material adhered to the back surface of the skin material. Epidermis
Is configured, furthermore, the friendly opening around the losses stay is provided on the base so as to be tiltable, the said laminated skin
A skin in which the thickness of the elastic sheet material is in the range of 4 to 10 mm.
Is arranged to be larger than the thickness of the elastic sheet material relating to the other skin portion forming the bag-like skin , and
Starting from the through-hole, the collapsible slide
Elongated slits are provided in the direction in which the table tilts
Integral skin foam products, characterized in that that. 2. A skin material wherein the skin forms an outer surface;
An elastic sheet material adhered to the back surface of the skin material, and
Foamed resin sheet material in which the elastic sheet material is made into a communicating cell
The skin-integrated foamed product according to claim 1, wherein