Fixing structure of fiber cover

Abstract

The invention relates to a fixing structure of fiber cover to integrate the cover fiber as non-woven cover and the resin molded product, which will not generate surface defects as convex-concave on the surface of resin molded product, and it can reduce the processing time and simplifying the processing device. Wherein, the decoration (10) on the side of luggage case is processed by melting the fiber cover as non-woven cover (30) and the inner surface of decoration (20). It uses the sharp convex rib (52) on the processing surface (51) of ultrasonic horn (50) to form the melting part (4) of non-woven cover (3) on the plane melting surface (41) to inserted into the V-shape groove (42) inside the resin molded product. The invention can simply inserted the fiber of non-woven cover (30) into resin molded product (20) to generate fixing effect and form the V-shape groove (42) of resin molded product in short time to improve the operation availability and appearance.

Description

technical field [0001] The present invention relates to a fixing structure of a fibrous covering, especially when the fibrous covering is integrated with a resin molding made of a thermoplastic resin by ultrasonic welding, a strong joint strength can be obtained by welding in a short time The fixed structure of the fibrous overlay. Background technique [0002] Generally, interior trims made of resin moldings are mounted on the interior surface side of vehicle body panels with mounting mechanisms such as clips, and on the vehicle body panel surface side of these interior trims, such as Figure 12 As shown, the sound-absorbing member 2 is bonded and fixed to the inner surface of the interior trim 1 by means of an adhesive 3, and the sound-absorbing member 2 prevents noise from outside the vehicle from being transmitted into the vehicle interior, thereby forming a structure that can improve the quietness of the vehicle interior. [0003] Since this interior decoration 1 can be...

AI Technical Summary

Problems solved by technology

[0006] However, since the sound-absorbing member 2 is ultrasonically welded and processed on the interior 1 using the ultrasonic horn 4 having the concave-convex surface 4a as the processed surface, it is necessary to apply a large pressure to the ultrasonic horn 4 so that the interior 1 Ultrasonic processing is performed to form a plurality of recesses with a depth of 1 to 5 mm on the interface with the sound-absorbing member 2, so the cylinder capacity of the press for applying pressure to the ultrasonic horn 4 increases, and the processing time increases, resulting in equipment costs. The main reasons for the decrease in production performance are the increase of

In addition, defects in appearance such as burrs and unevenness are likely to occur on the product surface of the interior 1 in connection with the formation of deep unevenness in the welded part, and it is considered that there is a disadvantage in that the designability is reduced at the same time.

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