JPS63125324A - Sticking process of skin material in sun visor with unit - Google Patents

Abstract

PURPOSE:To contrive to simplify a device and to improve its operation property by a method in which a press mold used for molding a pad member, is also used for molding a pad member, is also used for sticking integrally the pad member to a skin member, and the skin member is stuck to the pad member in succession to the molding of the pad member. CONSTITUTION:A blocklike urethane foam is positioned and placed on a bottom force 7 for a press, and a top force 8 for the press is lowered thereon by the action of a lifting and lowering means. The urethane foam is thermal compression-molded by the molds 7, 8 for the press, thereby molding a pad member 2a provided with a necessary recess 6. Next, immediately after the pad member 2a has been molded, the top force 8 for the press is lifted, and the top and bottom forces for the press are opened. Then, a hot melt film 9 and a skin member 3a are laminated in this order. Next, the top force 8 for the press is again lowered by the lifting and lowering means which is not shown, and the molds 7, 8 for the press are clamped. The skin member 3a is integrally stuck onto the pad member 2a along its surface shape with the hot melt film 9 therebetween.

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of the Invention) The present invention relates to a method of adhering a skin material to a sun visor with units such as a mirror unit and a lighting unit.

(Prior art and its problems) Normally, the configuration of a sun visor equipped with units such as a mirror unit and a lighting unit includes a loop-shaped wire frame 1 and this wire frame, as shown in FIGS. 6 and 7. A sun visor body 4 is made up of padding materials 2 laminated on the front and back sides of the sun visor body 4 and a skin material 3 covering the outer peripheral surfaces of these padding materials 2. It is composed of a unit 5.

In order to secure storage space for the unit 5 and to form a recess 6 on the front side of the sun visor body 4, a pad material 2a that is usually placed on the front side of the wire frame 1 is provided.
is formed into a desired shape by hot press molding so as to include a recess 6.

Furthermore, a skin material 3a covering the surface side of this pad material 2a
Since it is necessary to adhere faithfully along the curved surface shape of the pad material 2a, it is necessary to form the pad material 3a in advance into a shape approximately equal to the outer surface shape of the pad material 2a by vacuum forming or the like, or to heat and soften the skin material 3a. In this state, it was necessary to apply an adhesive to the surface of the pad material 2a by vacuum forming.

In this way, in order to obtain a good surface appearance, the skin material 3a attached to the surface side of the pad material 2a provided with the recessed portion 6 is
It must be vacuum formed in advance or softened and attached to the surface of the pad material 2a by vacuum forming, which increases the number of molds, mold jigs and tools, and increases the number of man-hours. This was a contributing factor.

(Object of the Invention) The present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a sun visor with a unit in which the shape of the pad material is set to a complicated curved shape.
To provide a method for attaching a skin material to the surface side of a pad material in a simple and inexpensive manner.

(Structure and Effects of the Invention) In order to achieve the above object, the present invention provides a wire frame bent into a loop shape, a pad material disposed on the front and back sides of the wire frame, and an outer periphery of the pad material. A sun visor with a unit comprising a sun visor body made of a skin material covering a surface, and a unit installed in a recess formed on the surface side of the sun visor body,
The pad material placed on the surface side of the frame is formed into a desired shape with a recessed part by hot-pressing a block-shaped urethane material in a press mold, and then molded into the press mold. The hot melt film and the skin material are placed on the surface side of the pad material in this order, and the press mold is clamped again, so that the skin material is integrally attached to the surface side of the pad material. It is characterized by the following.

That is, according to the above configuration, the press mold used for molding the pad material is also used to integrate the pad material and the skin material, and the pasting of the skin material is performed continuously with the molding process of the pad material. Because the padding process is carried out, there is no need to pre-form the skin material by vacuum forming or to perform vacuum forming along the surface shape of the padding material, which is the case in the past, so the joint complexity is significantly reduced. It is possible to simplify and form the pad material in a continuous process in the working section.

Since each process for adhering the skin material can be performed and the workability is improved, there is an advantage that it can bring about a significant cost reduction.

(Description of Embodiments) Hereinafter, one embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 to 3 are process diagrams showing the skin material adhesion processing method according to the present invention, and FIGS. 4 and 5 show the assembly process of a sun visor with a unit following the skin material adhesion process. It is an explanatory diagram.

However, since the general structure of the sun visor with a unit is the same as that of the conventional one, the same parts are denoted by the same reference numerals (-IL, and the explanation thereof will be omitted.

First, as shown in FIG. 1, a block-shaped urethane foam is positioned and placed on the lower mold 7 for pressing, and the upper mold 8 for pressing is moved from above by the operation of a lifting means (not shown).
is lowered, and the urethane foam is hot-press-molded using a press mold 7.8 to form a pad material 2a (referring to the pad material disposed on the surface side of the wire frame 1) provided with the required recesses 6.
to form.

The molding conditions at this time were a molding temperature of 180°C and a molding time of 9
Set to 0sec. Note that the protrusions 7a provided on the lower press mold 7 are removed from the wire frame 1 in the assembly process described later.
This is for molding a groove that accommodates.

Next, immediately after forming the pad material 2a, the upper press mold 8 is raised, and after pressing the press molds 7 and 8, a hot melt film 91 and skin material 3a are placed on the upper side of the pad material 2a. Stack them in this order (see Figure 2).

Note that the hot melt film 9 is a urethane hot melt film in consideration of adhesiveness with the pad material 2a, and this film 9 melts at ]00 to 120'C.

Next, the upper press mold 8 is lowered again by the operation of the lifting means (not shown), and the press molds 7 and 8 are clamped.
The skin material 3a is adhered and integrated along the surface shape of the pad material 2a via the film 9.

The molding conditions at this time are such that the hot melt film 9 melts due to heat accumulation in the pad material 2a immediately after molding, so the press molds 7 and 8 only need to be pressurized, and furthermore, the surface texture of the skin material 3a is adversely affected. for about 3 to 5 seconds so as not to cause
degree.

With the above steps, the molding of the pad material 2a placed on the front side of the wire frame 1 and the adhesion of the skin material 3a to the surface of the pad material 2a are completed.

As another example, although not shown, if the pad material 2a is molded with the wire frame 1 inserted in the wire frame 1, shrinkage and deformation of the pad material 2a itself after molding can be avoided. This can be prevented by the rigidity of
In this way, the initial shape of the sun visor can be maintained for a long period of time.

Furthermore, for reference, the assembly process shown in FIGS. 4 and 5 will be explained.

What is shown in FIG. 4 shows the assembly process of the sun visor body 4. After setting the skin material 3b on the welding device 10, the wire frame 1 is sandwiched between the wire frame 1 and the pad by the sandwich method from above. Place the materials 2b and 2a. At this time, the surface side skin material 3a is integrally attached to the surface side of the pad material 2a.

Then, by welding and fusing the skin materials 3a and 3b using the weld bar 11 set along the outer periphery of the sun visor product, the sun visor body 4 is assembled with a recess 6 in the center of its surface. .

When the unit 5 is assembled into the surface recess 6 of the sun visor main body 4 by a conventional fixing means such as fixing or gluing, the sun visor with the unit is broken (see FIG. 5).

[Brief explanation of the drawing]

Figures 1 to 3 are cross-sectional views showing each step of the method for attaching a skin material to a sun visor with a unit according to the present invention, and Figures 4 and 5 are the next steps of the method for attaching a skin material according to the present invention. 6 is a perspective view showing the unit-attached sun visor, and FIG. 7 is a sectional view taken along the line vu-vi in FIG. 6. 1... Wire frame 2a, 2b... Pad material 3a, 3b... Skin material 4... Sun visor body 5... Unit [・ 6... Recessed part 7... Lower die for press 8... ...Upper die for press 9...Hot melt film 10...Welder device 11...Welder bar (Fig. 1, Fig. 2, 9G, door) Fig. 3, Fig. 4, Fig. 5 Figure 6

Claims (1)

[Claims] (1) A wire frame bent into a loop shape, pad materials placed on the front and back sides of this wire frame,
A sun visor with a unit comprising a sun visor main body made of a skin material covering the outer circumferential surface of a pad material, and a unit installed in a recess formed on the front surface side of the sun visor main body, the front surface side of the frame The pad material to be placed is formed into the desired shape with a recess by hot-pressing a block-shaped urethane material in a press mold, and then the press mold is opened and hot-melted. A film and a skin material are placed in this order on the surface side of the pad material, and the press mold is clamped again, so that the skin material is integrally attached to the surface side of the pad material. A method for attaching a skin material to a sun visor with a unit.