JPS6260995B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates primarily to a method of manufacturing mats for use in automobiles.

This type of mat 10 has conventionally been constructed by adhering a decorative material 2 such as a carpet onto a soft pine base material 1 made of synthetic resin using adhesive or fusion, as shown in FIG. 1, for example. is provided. However, in the conventional structure described above, a step 3 is formed at the boundary between the base material 1 and the decorative material 2, which not only deteriorates the appearance of the mat 10 but also makes the base material 1 and the decorative material 2 easy to separate.

The present invention aims to improve the above-mentioned conventional drawbacks, and its main feature is to manufacture a mat having a decorative material fitted into a frame material made of synthetic resin.

In the mat having the above structure, not only can the frame material and the decorative material be made substantially flush with each other to obtain an excellent appearance, but also it is possible to prevent the frame material and the decorative material from peeling off.

The steps of the manufacturing method of the present invention are the following steps 1, 2,
Consists of 3.

Step 1 of molding a picture frame material material in which crossbars are provided vertically and horizontally in the central space of the picture frame material body, cutting blade guide grooves are provided on the top surface of the bottom edge, and decorative material fitting grooves are provided on the bottom surface of the bottom edge. Step 2 of fitting the peripheral edge of the decorative material into the decorative material fitting groove of the original picture frame material. Fitting the electrode/cutting blade into the cutting blade guide groove of the original picture frame material, and fitting the cutting blade guide groove on the lower surface of the bottom edge. An electrode is brought into contact with the opposite position, and high frequency waves are applied while pressing the electrode/cutting blade, and while the crosspiece is cut off by the electrode/cutting blade, high frequency waves are applied to the peripheral edge of the decorative material and the fitting groove at the same time. Fusion step 3. The present invention will be explained in detail below.

In FIG. 2 and FIG. 3, 11A is the frame material original body, which includes a peripheral wall portion 111, a bottom edge portion 112,
It consists of crosspieces 114 provided vertically and horizontally in a central space 113, a cutting blade guide groove 115 is provided on the top surface of the bottom edge 112, and a decorative material fitting groove 116 is provided on the bottom surface of the bottom edge 112. It is provided. In step 1, the original picture frame material 11A having the above structure is molded, and injection molding, press molding, etc. are mainly used as the molding method. Examples of materials for the frame material base 11A include synthetic resins such as polyvinyl chloride, styrene-butadiene rubber, ethylene-propylene rubber, polyethylene, polypropylene, and styrene-butadiene block copolymers. .

In step 2, the peripheral edge of the decorative material 12 is fitted into the decorative material fitting groove 116 of the original frame material 11A. As shown in FIG. 4, the decorative material 12 is a soft thin sheet 1 made of synthetic resin as exemplified above.
It has a structure in which a carpet 122 is attached to 21,
A small non-slip protrusion 12 is provided on the back side of the sheet 121.
3 is formed in large numbers.

In step 3, the original frame material 11A is placed upside down as shown in FIG. 6 on the frame-shaped electrode/cutting blade 13 as shown in FIG. At this time, as detailed in FIG. 7, the cutting edge guide groove 1 of the original picture frame material 11A is
The electrode/cutting blade 13 is fitted into the electrode 15. The electrode/cutting blade 13 has a frame shape as described above, and has a cutting blade part 1 on the upper edge.
31 are provided, and reinforcing bars 132 are provided vertically and horizontally. The cutting edge portion 131 is connected to the original frame material 11.
It is fitted into the cutting edge guide groove 115 of A. Further, an electrode 14 is brought into contact with the lower surface of the bottom edge 112 of the original frame material 11A at a position opposite to the cutting edge guide groove 115. Then, a high frequency is applied between the electrode-cum-cutting blade 13 and the electrode 14, and the electrode-cum-cutting blade 13 is pressed to cut out the crosspiece 114 along the dotted line in FIG. and the decorative material fitting groove 116 are high-frequency fused.

The original frame material 11A from which the crosspieces 114 have been removed in this manner becomes the frame material 11, and a mat 20 made of the frame material 11 and the decorative material 12 is obtained.

The present invention is not limited to the above-mentioned embodiments; for example, the frame material may be one without a peripheral wall, and the decorative material may include fiber knitted fabrics, flocked products, synthetic resin sheets, etc.

As described above, in the present invention, since the electrode/cutting blade is fitted into the cutting blade guide groove of the original picture frame material, the electrode/cutting blade can be easily installed at an appropriate position on the original picture frame material, and the peripheral edge of the decorative material can be easily positioned. Since it is high-frequency fused to the decorative material fitting groove of the original picture frame material, the peripheral edge of the decorative material is covered and protected by the decorative material fitting groove, and for example, when the decorative material is a carpet, it is prevented from coming loose from the periphery. Ru.

[Brief explanation of the drawing]

Fig. 1 is a side view of a conventional example, Fig. 2 and the following show an embodiment of the present invention, Fig. 2 is a plan view of the original picture frame material, and Fig. 3 is taken along A-A in Fig. 2. 4 is a side view of the decorative material, FIG. 5 is a perspective view of the electrode/cutting blade, FIG. 6 is an explanatory diagram of step 3, FIG. 7 is a detailed explanatory diagram of step 3, and FIG. 8 is a side view of the decorative material. It is a partial sectional view of the frame material of the obtained pine. In the figure, 11... Picture frame material, 11A... Picture frame material original, 12... Decorative material, 13... Electrode/cutting blade, 14
... Electrode, 20 ... Mat, 111 ... Peripheral wall part,
112...Bottom edge, 113...Central space, 114
... Crosspiece portion, 115 ... Cutting blade guide groove, 116 ... Decorative material fitting groove.

Claims (1)

[Claims] 1. A frame member is provided vertically and horizontally in the central space of the frame material body,
Step 1 of molding a picture frame material in which a cutting blade guide groove is provided on the upper surface of the bottom edge and a decorative material fitting groove is provided on the lower surface of the bottom edge. 2. Fit the electrode/cutting blade into the cutting blade guide groove of the picture frame material original body, and abut the electrode/cutting blade at a position opposite to the cutting blade guide groove on the lower surface of the bottom edge. Step 3 of applying high frequency while pressing the blade to cut out the crosspiece with the electrode/cutting blade and simultaneously welding the peripheral edge of the decorative material and the fitting groove with high frequency. 3. Above steps 1, 2, and 3. A method for manufacturing pine consisting of.