JPS6139541Y2 - - Google Patents

Description

[Detailed Description of the Invention] In order to adapt the carpet for the automobile floor to the shape of the automobile floor, a protrusion 2 is formed in the center of the carpet 1 as shown in FIG. Therefore, as shown in Fig. 2, this type of carpet has a base fabric 1A covered with a raised layer 1B, and a main body made of polyethylene, polypropylene, etc.
Formability is imparted by forming a thermoplastic synthetic resin layer 1C such as polyvinyl chloride, and a lower mold 3 is provided with a convex portion 3A as shown in FIG. Press molding is performed using a press mold consisting of an upper mold 4 having a concave portion 4A. At this time, in order to support the carpet 1, the periphery of the carpet 1 is supported by support mechanisms such as handles 5, 5, as shown in FIG. 3, or by the operator's hands. When supporting the periphery of the carpet 1 in this way, in order to prevent the handle or the operator's hand from getting caught in the press mold, the periphery of the carpet 1 is made to protrude a large width from the press mold, and a support width 1D, 1D must be provided. The support allowances 1D and 1D are cut and discarded after molding.

The purpose of this invention is to eliminate the large support allowance required in the above-mentioned conventional technology, save material, and simplify the structure of the press mold to make it cheaper. The main feature is that a support needle is attached to the periphery of the mold, and that the tip of the support needle is tiltable in the direction of the mold.

The present invention will be explained with reference to an embodiment shown in FIG.
In a press molding die consisting of a lower die 3 into which B is inserted and an upper die 4 having a concave portion 4A having a shape corresponding to the convex portion, a pair of bolts 5A, 5B is erected, and the bolts 5A,
A support piece 8 having a support needle 7 extending therefrom is loosely fitted into the support piece 5B via springs 6A and 6B. A disk-shaped stopper 9 is fixed to the end of the support piece 8.
A protection plate 11 that protects the tip of the support needle 7 is connected to the support needle 7 via a spring 10, and the support needle 7 is passed through the hole 11A of the protection plate 11.

In the press mold, as shown in FIG. 6, the carpet 1 with the thermoplastic synthetic resin layer 1C softened by heating is placed on the lower mold 3.
The peripheral edge is pressed from above the protective flange 11 to pierce the support needle 7. The peripheral edge of the carpet 1 is thus supported by the support needles 7. Lower the upper mold 4 and
As shown in the figure, carpet 1 is formed between upper mold 4 and lower mold 3.
At this time, the carpet 1 is molded into the concave part 4.
When the convex portion 3A fits into A through the carpet 1, it receives a tensile force, but this tensile force is transmitted to the support needle 7 through the periphery of the carpet 1, and the support needle 7, together with the support piece 8, is 6A, 6B
The tip is inside against the elasticity of the lower mold 3.
lean in a direction. Thus, the carpet 1 is the upper mold 4,
The carpet 1 can be smoothly adapted to a predetermined shape between the lower molds 3, and damage to the carpet 1 due to the tensile force can be prevented. The carpet 1 is thus formed into the shape shown in FIG.

In this invention, the carpet periphery is supported by piercing a plurality of support needles attached to the upper mold or lower mold periphery, so it is only necessary to leave a small pricking allowance on the carpet periphery. Because the support needles are assembled into the mold, the support needles only need to be very narrow compared to the support required from the outside of the conventional press molding mold, which saves carpet material, and also allows the carpet to be placed outside the mold. No supporting mechanism is required. Furthermore, even if a tensile force is applied to the carpet due to the molding pressure force, the tensile force is transmitted from the periphery of the carpet to the supporting needles, and the tip of the supporting needles correspondingly tilts toward the mold, so that the carpet is smoothly molded. It is molded and will not break due to tensile forces.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the molded carpet, Figure 2 is a perspective view of the molded carpet;
The figure is a side sectional view, Figure 3 is a side sectional view of a conventional carpet molding process, Figure 4 and the following show an embodiment of the present invention, Figure 4 is a side sectional view, and Figure 5 is a support FIG. 6 is a left half side sectional view showing the state before molding, and FIG. 7 is a left half side sectional view showing the state after molding. In the figure, 1...carpet, 2...convex portion, 3...lower die, 3A...convex portion, 4...upper die, 4A...concave portion, 7...support needle.

Claims (1)

[Scope of utility model registration request] In a press molding die in which a convex part is arranged on the upper mold or the lower mold, and a concave part of a shape corresponding to the convex part is arranged on the lower mold or the upper mold, a plurality of 1. A press molding die used for manufacturing a carpet for an automobile floor, characterized in that a support needle is attached, and the tip of the support needle is tiltable in the direction of the mold.