JPS61226345A - Method of applying outer skin cloth on interior member for automobile - Google Patents

Abstract

PURPOSE:To make it possible to weld an outer skin cloth to a forming core by one welding step, by welding and securing the outer skin cloth in the outer skin attaching recess section of the forming core with a spreading magnification in accordance with the opening of slits formed in the section of the cloth which is concealed. CONSTITUTION:An ornamental outer skin cloth 12 is welded and secured uniformly to the passenger's side surface 10a of a forming core 10 by a high-frequency welder, including a recess 11 formed in a substantially center section of the surface 10a. At this time, slits 14 previously formed in the cloth is opened so that the outer skin cloth 12 is drawn in, and therefore, the outer skin cloth 12 may be welded and secured with a curve surface spreading magnification along the inside shape of the recess 11. Further, the formed sections of the slits 14 are concealed by a separate armrest 13, etc. so that the slits 14 are invisible from the outside, and therefore, the external appearance is not deteriorated.

Description

DETAILED DESCRIPTION OF THE INVENTION (Technical Field of the Invention) The present invention relates to a method for attaching a skin cloth to an interior material for an automobile, and more particularly to a method for attaching a skin cloth to a recessed portion of a molded core material.

(Prior art and its problems) Some automotive interior materials include, for example, a decorative skin cloth welded and fixed to the passenger compartment side surface of a door molding core material using a high-frequency welder.

In this type of interior material, if a recess is formed on the surface of the molded core material to which the skin cloth is attached, the skin cloth must be evenly applied to the recess.

By the way, in order to attach the skin cloth to the recessed portion, the skin cloth must stretch moderately along the curved surface of the concave shape, so it has not been possible to make it follow the pasting surface with a normal cloth material. Further, even if the skin cloth is forcefully applied and adhered, it often peels off over time.

Therefore, when attaching a skin cloth to the recesses formed on the surface of the molded core material, select a cloth 1A with good stretch and apply welding adhesive to the recesses 2a of the molded core material 2, as shown in Figure 3. Alternatively, as shown in FIG. 4, the cloth 1B is given a predetermined curved surface development magnification by forming slits 3 in the cloth 1B, and the cloth 1B is welded to the recess 2a of the molded core material 2, and then the slits 3 are welded. In order to hide it, a separate cloth 1C for covering the slit 3 was welded onto the cloth 1B. 4a and 4b% in the figure are weld patterns formed during high frequency welding.

However, in the former method, the elongation is good.
However, this type of interior material cannot be applied to general vehicles, as it is preferable to use the same cloth material to create a total co-existence in order to harmonize with seats, etc. Ta.

In addition, the latter method not only requires a separate cloth to cover the slit 3, but also has the disadvantage that the weld mite process is performed twice.

(Object of the Invention) The object of the present invention is to solve the above-mentioned conventional problems, give a predetermined curved surface development magnification to the skin cloth, and weld and fix the skin cloth to the molded core material by -times of welding process. shall be.

(Structure and Effects of the Invention) In order to achieve the above object, the present invention provides a skin cloth that is pasted into a recess formed in a skin pasting surface of a molded core material, wherein a separate component in the skin cloth is prepared in advance. A slit is formed in the region where the skin cloth is hidden when the skin cloth is joined, and the skin cloth is welded and fixed in the recessed part by high-frequency welding at a predetermined expansion magnification according to the opening of the slit.

According to the above configuration, even a skin cloth that does not stretch well can be given a predetermined curved surface development magnification, and can be welded and fixed by -times of welding.

Therefore, in the present invention, an inexpensive material that does not stretch can be used as the cloth material. In addition, the skin cloth welded to the recessed portion of the molded core material is welded and fixed at a predetermined expansion magnification, so there is no risk of peeling off unlike in the past, and the appearance can be improved without using a separate cloth.

(Description of Examples) FIG. 1 is a perspective view showing an automobile interior material to which the present invention is applied, and FIG. 2 is a sectional view taken along the line ■--■ in FIG. 1.

In the figure, a recess 11 is formed approximately in the center of a surface 10a on the vehicle interior side of a molded core material 10 constituting the door trim, and a decorative skin cloth 12 is applied to the surface 10a on the vehicle interior side including the recess 11. It is uniformly welded and fixed by a machine tool.

In addition, the molded core material 10 has a recess 11 as shown in FIG.
An armrest 13 is attached from a lower portion 11a to a flat portion 10b of the molded core material 10. This armrest 13 hides the attachment portion of the armrest 13 on the skin cloth 12, so that it cannot be visually seen from the outside.

Further, the armrest 13 is attached to the skin cloth 12 in advance.
A slit 14 is formed in the horizontal direction at the attachment site of the
The structure is such that the skin cloth 12 is welded at a development magnification corresponding to the opening of the slit 14.

In other words, in the present invention, when welding the skin cloth 12, the slit 14 formed in advance is opened and the skin cloth 12 is pulled in, and the skin cloth 12 is welded at a curved surface development magnification that follows the inner shape of the recess 11. This is characterized in that the cloth 12 can be fixed by welding.

In this case, even if the slit 14 is opened, the portion where the slit 14 is formed is hidden by the separate armrest 13.

Therefore, the slit 4 itself is not visible from the outside, and the appearance is not impaired.

Note that the slit 14 is not limited to the part where the armrest 13 is attached, but may be formed in a part where a separate accessory case or the like is attached, for example.

[Brief explanation of the drawing]

Fig. 1 is a perspective view showing an automobile interior material to which the present invention is applied, Fig. 2 is a cross-sectional view along the line ■-■ of Fig. 1, and Fig. 3 is a method of attaching skin cloth to a conventional automobile interior material. FIG. 4 is a sectional view of a door trim showing another conventional example. DESCRIPTION OF SYMBOLS 10... Molded core material, 11... Recessed part, 12... Outer skin cloth, 13... Armrest, 14... Slit. Patent applicant Kasai Kogyo Co., Ltd. agent Patent attorney Tetsuji Iwakura (and 1 other person) Figure 3 Figure 4

Claims (1)

[Claims] A skin cloth that is pasted into a recess formed on the skin adhesion surface of a molded core material, in which separate parts of the skin cloth are joined in advance, slits are formed in areas where the skin cloth is hidden, and the skin cloth is bonded by high-frequency welding. A method for attaching a skin cloth to an automobile interior material, characterized in that the skin cloth is welded and fixed in the recessed portion at a predetermined expansion magnification depending on the opening of the slit.