JPH0339448B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a head restraint for a vehicle that is attached to the upper part of a seat of a vehicle.

(Prior Art) A head restraint is installed above the seat of a vehicle for the purpose of protecting the head and neck of an occupant. The main components of conventional head restraints include a bag-shaped skin material, an insert inserted into the skin material through an incision at the bottom of the skin material, and
A bag-shaped skin material, an insert inserted into the skin material during molding of the skin material, and a cushion material foam-molded within the skin material. There is something.

(Problems to be Solved by the Invention) However, with the above-mentioned headless restraint, the raw material for forming the cushion material leaks from the incision for insert insertion during manufacture and tends to foam outside the skin material, so it is difficult to use in the subsequent process. The leakage must be removed, and the head restraint significantly reduces the molding cycle of the skin material, increasing processing costs, and also prevents the cushion material from forming with the insert inserted into the skin material. Since the inserts are stored in inventory until they are molded, the skin material tends to deform during inventory due to the weight of the insert itself, which has the disadvantage of requiring storage equipment.

Furthermore, in any of the above cases, the insert usually has two long legs for attaching the headrest restraint to the seat, and the legs protrude outside the skin material. . Therefore, there is a risk that the legs of the insert may open or otherwise become deformed due to the force applied during storage or during installation until the bedding restraint is installed, or due to impact during use.

Therefore, in view of the above points, the present invention has been developed to provide a headdress with a structure that prevents the cushion material forming raw material from leaking from the skin material during the manufacture of the headdress restraint, and that prevents the legs of the insert from opening during use. The aim is to share the training with others.

(Means for Solving the Problem) In order to achieve the above object, the present invention provides a hollow skin material in which two insert insertion holes are formed, and a hollow skin material that is passed through the skin material from one of the insert insertion holes so that both legs are inserted into the skin material from one of the insert insertion holes. A roughly U-shaped insert protruding from the two insert insertion holes to the outside of the skin material, a cushion material formed by foaming within the skin material, and a plate that connects and holds the two legs of the insert together near the insert insertion holes. A head restraint for a vehicle is constructed from a leg opening prevention body shaped like a shape or a line.

(Function) In the head restraint of the present invention, a substantially U-shaped insert is passed through the skin material from one of the two insert insertion holes drilled in the hollow skin material, and both legs of the insert are inserted into the two insert insertion holes. It does not have a large incision for insert insertion, which would cause leakage of the cushioning material forming raw material during the manufacture of the head restraint. Therefore, the cushion material forming raw material injected into the hollow skin material during the manufacture of the head restraint can be prevented from leaking from the skin material during foaming.

In addition, near the insert insertion hole of the hollow skin material, the two legs of the insert are connected to each other by a plate-shaped or linear leg-spread prevention body,
There is no risk of the insert legs opening.

(Example) The present invention will be described below based on an example using the drawings.

1 and 2 are a perspective view and a cross-sectional view showing the insertion of an insert in a head restraint according to an embodiment of the present invention, and A to C in FIG. 3 are parts showing an embodiment of the insert insertion hole. 4 is a perspective view showing the injection of the raw material for forming the cushion material, and FIGS. 5A to 5C are a perspective view and a sectional view showing an embodiment of the leg-spread prevention body.

The head restraint according to the embodiment of the present invention includes a hollow skin material 1 or 1', an insert 3, a cushion material (not shown) formed by foaming within the hollow skin materials 1 and 1', and a material for preventing leg opening. body 5a, 5b or 5c.

The hollow skin materials 1 and 1' are formed into a predetermined hollow shape by slush molding or rotation molding using vinyl chloride resin paste or powder, or blow molding using a parison, and two inserts are inserted at the bottom. Holes 1a, 1a' (the hollow skin material 1' is not shown) and a cushion material forming raw material injection port 2 (the skin material 1' is not shown) are formed. The shape of the hollow skin material is appropriately selected from the design and functional aspects. For example, the hollow skin material 1 shown in FIG. 1 has an opening 1b in the center, or
The hollow skin material 1' shown in the figure is shaped like a bag.

In addition, the sizes of insert insertion holes 1a and 1a' are as follows:
The diameter is slightly smaller than the outer diameter of the insert 3, and the insert 3 and the inner circumferential surface of the insert insertion hole are in close contact with each other. Examples of the close contact structure are shown in FIG. 3 A to C.

The insert 3 has a substantially U-shape and is a hollow or solid rod-like body. Note that the two legs of the insert 3 constitute a stay for attaching this head restraint to the upper part of the seat. In addition, the insert 3 is
One leg is inserted into the hollow skin material 1 from one of the two insert insertion holes 1a formed in the hollow skin material 1, and the one leg is passed through the hollow part of the hollow skin material 1 into the other insert insertion hole 1a. ' to hollow skin material 1
It is attached to the hollow skin material by letting it out.

The cushion material is formed by foaming within the hollow skin materials 1, 1' after the insert 3 is inserted into the hollow skin materials 1, 1'. To mold the cushion material, as shown in FIG. 4, a cushion material forming raw material, for example, a polyurethane foam raw material, is injected into the hollow skin material through an injection device 4 through a cushion material forming material injection port 2 at the bottom of the hollow skin material 1. This is done by foam molding. In order to prevent the shape of the hollow skin material 1 from collapsing during foam molding of the cushion material, it is preferable to place the hollow skin material in a foam mold (not shown) and perform foam molding of the cushion material. .

The leg opening prevention bodies 5a, 5b, 5c are inserted into the insert 3.
The two legs of the hollow skin are connected to each other near the insert insertion hole, and are made of metal or plastic plates or metal wire. The leg-spread prevention bodies 5a, 5b, and 5c have holes for leg insertion, or a ring shape or a hook shape formed at both ends so that the two legs of the insert 3 can be connected. The leg opening prevention bodies 5a and 5b are the fifth leg opening prevention bodies 5a and 5b.
It is attached to the leg of the insert 3 after the hollow skin material 1' is molded as shown in Figures A and B, or it is installed inside the hollow skin material 1 as shown in Figure 5 C during the molding of the hollow skin material 1 and then Insert 3 into hollow skin material 1
The insert 3 is attached to the leg portion of the insert 3 when the insert 3 is inserted into the insert 3.

(Effects of the Invention) The head restraint for a vehicle of the present invention does not have a large incision for insertion of an insert in the hollow skin material as described above, so when foam molding the cushion material within the hollow skin material. There is no risk that the raw material for forming the cushion material will leak from the skin material. Further, since the two legs of the insert are connected to each other by the leg-spread preventing body near the insert insertion hole of the hollow skin material, there is no fear that the legs of the insert will open.

[Brief explanation of the drawing]

1 and 2 are a perspective view and a cross-sectional view showing the insertion of an insert in a head restraint according to an embodiment of the present invention, and A to C in FIG. 3 are parts showing an embodiment of the insert insertion hole. FIG. 4 is a perspective view showing the injection of the raw material for forming the cushion material, and FIGS. 1, 1': hollow skin material, 1a, 1a': insert insertion hole, 2: cushion material forming raw material injection port,
3: Insert, 5a, 5b, 5c: Leg opening prevention body.

Claims (1)

[Claims] 1. A hollow skin material with two insert insertion holes formed therein, and a roughly U-shaped insert that is passed through one of the insert insertion holes into the skin material and has both legs protruding from the skin material through the two insert insertion holes. A headrest restraint for a vehicle comprising: a cushion material formed by foaming within a skin material; and a plate-shaped or linear leg-spread prevention body that connects and holds two legs of an insert to each other near an insert insertion hole.