JPS5828125B2 - Manufacturing method for automotive sun visors - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of manufacturing a sun visor for an automobile, and an object thereof is to provide a method of manufacturing a sun visor that is resistant to deformation and has excellent durability. .

An embodiment of the present invention will be described below with reference to the drawings.

In the figure, reference numeral 1 indicates the entire sun visor, which is composed of a core body 2 having cushioning properties and covered with an exterior skin 5.

Reference numeral 6 denotes a mounting shaft that is fitted into a bearing 4 fixed to a built-in bone frame 3 at the peripheral edge of the core body 2 .

The core body 2 includes two cushioning materials 2a and 2b on the front and back made of foamable synthetic resin, sponge rubber, etc. (for example, polyurethane foam), and is installed along the peripheral edge between the cushioning materials 2a and 2b. It is composed of an annular frame 3 made of metal wire or the like.

The exterior skin 5 covering the core body 2 is composed of two sheet materials 2a and 2b, front and back, made of breathable woven fabric (including woven fabric coated with resin) or the like.

Now, to explain in order the manufacturing process of the sun visor 1 configured as described above, first, both cushioning materials 2a,
The entire portion 2b is impregnated with a resin adhesive such as a thermosetting adhesive such as a polyurethane adhesive or a thermoplastic adhesive such as an ethylene vinyl acetate adhesive.

Next, as shown in FIG. 3, a sheet material 5a, a cushion material 2a, and a frame are placed between a lower mold B and an upper mold A of a molding die having a mold space corresponding to the shape of the sun visor 1. 3. Laminate and set the cushion material 2b and sheet material 5b in this order.

Thereafter, as shown in FIG. 4, both molds A and B are closed, and each of the laminated members 5a p 2a y3.2b
, 5b are fully pressurized by both dies A and B, and both cushioning materials 2a and 2b are compressed and held to a predetermined thickness.

Then, while molds A and B are closed, high-temperature, high-pressure air or steam F-F is pumped into the mold spaces of both molds A and B, as shown by the arrows in Figure 4. Then, the resin adhesive impregnated throughout the cushioning materials 2a and 2b is actively dried and hardened.

Then, each of the members 5a, 2a, 3, 2b. The mutual contact surfaces of 5b are completely bonded by drying and curing of the adhesive, and these members form an integral body, thereby,
A sun visor 1 that does not easily lose its shape and has excellent durability and strength is formed.

That is, in this invention, the entirety of both cushion materials is impregnated with a resin adhesive, and then both sheet materials having air permeability between the upper and lower molds, both cushion materials, and the frame are laminated vertically in a predetermined order. After setting the upper and lower molds, the upper and lower molds are closed, and each layered member is pressurized entirely by the upper and lower molds, while the resin adhesive is impregnated into the entirety of both the cushioning materials. By drying and curing, the mutual contact surfaces of both sheet materials, both cushion materials, and the frame are fully bonded, thereby allowing each member of the laminated structure to form an integral structure without shifting from one another. It is possible to easily form a sun visor that does not easily lose its shape and has excellent durability and strength.

In particular, in the present invention, during pressurization when both the molds are closed, high-temperature, high-pressure air or steam is pumped into the mold spaces of the upper and lower molds to impregnate the entirety of the cushioning materials. By actively drying and curing the resin adhesive, the resin adhesive can be dried and cured in a short time, and uneven drying and curing can also be prevented.

Therefore, it is possible to prevent poor adhesion between the contact surfaces of the sheet materials, the cushion materials, and the frame frame caused by uneven drying and curing of the adhesive.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway front view of a sun visor, FIG. 2 is a side sectional view,
Figure 3 is a cross-sectional view showing the state in which both sheet materials, both cushion materials, and the frame are set between the upper and lower molds, and Figure 4 is a cross-sectional view showing the state in which both the upper and lower molds are closed. be. 1... Sun visor 2... Core body, 2
a, 2b...Cushion material, 3...Bone frame, 5...Exterior skin, 5a, sb...
・Sheet material.

Claims (1)

[Claims] 1. The surface of the core body consists of two cushions on the front and back and an annular frame installed along the periphery between these two cushion materials, and the outer surface is made of two sheets of breathable sheet material on the front and back. A method for manufacturing a coated automotive sun visor, wherein the entirety of both cushioning materials is impregnated with a resin adhesive, and then a molding die having a mold space corresponding to the shape of the sun visor is formed. After setting the sheet materials, the cushioning materials, and the annular frame in a predetermined order by stacking them vertically between the lower mold and the upper mold, the upper and lower molds are closed to form the laminated shape. Each member is fully pressurized by both the upper and lower molds, and during this pressurization, high-temperature, high-pressure air or steam is force-fed into the mold spaces of both the upper and lower molds, so that the entire cushioning material is The sun visor is formed by actively drying and curing the resin adhesive impregnated with each of the two sheet materials, the two cushion materials, and the frame by fully adhering the mutual contact surfaces of the two sheet materials, the cushion materials, and the frame. A method for manufacturing an automobile sun visor.