JPS60110547A - Shape retaining core member for packing - Google Patents

Abstract

PURPOSE:To maintain flexibility and shape retention of packing by forming rhombic spaces, zigzag and incontinuously through reticulations, on a metal plate, etc. which is cut to required width, to provide a core member, and putting this core member inside said packing through a synthetic resin. CONSTITUTION:A number of incontinuous notches 2 are cut off, in the width direction, on a metal plate 1, leaving a required space in its longitudinal direction. These notches 2 are cut off zigzag, using zigzag-formed upper and lower metal molds. The metal plate 1 is expanded at the notch part 2 through the configuration of the upper and lower metal molds, being formed into a mesh of lath form having rhombic spaces and, then, inserted between flat rollers, to be formed into a flat mesh of lath form. Thus, in the notck part 2, a rhombic space 3 is formed at the central part of the core member 1, and is closed by a reticulation. On both sides of the rhombic space 3, end-part rhombic spaces 5 are provided, in series, through reticulations 4, with their outer ends being opened. This shape retaining core member is embedded in packing 9, being covered by a synthetic resin 8, and the packing 9 is bent and formed into a U-shape.

Description

[Detailed description of the invention] The present invention relates to a shape-retaining core H.

For safety and aesthetics, fit a U-shaped synthetic resin gasket on the frame end side plate of the automatic illumination door or opening section. [”
In order to fix the MiR along the curved part of the door or the
In addition to providing ia, shape retention is also required.

For this reason, a synthetic resin in which the rows of shape-retaining cores are filled with 4 cores is generally used. The core shrine is easily bent along the door or opening, and the lath has a width of 1.1 in order to maintain its original shape.An example of this is shown in Figure 4. A metal plate is made with discontinuous cuts in the width direction at required intervals in the longitudinal direction, stretched in the length direction, and then flattened with a press, or in the form of a band as shown in Figure 5. There are metal plates that are cut out using a press machine or the like into the required lath shape with cross-linked parts.However, in +tiJ, this is covered with synthetic resin on the entire front and back surfaces. Cut the cross-linked parts where the 4411 wire rods, which have a thin lath mesh to give them backward bendability, are connected to each other with diamond-shaped holes.This is done after embedding the lath mesh in a synthetic resin. By applying the required tensile force between a plurality of rollers arranged in a staggered manner and alternately bending and pulling the lath network multiple times, the cross-linked portions of the lath net in the width direction are broken and separated, thereby providing the desired flexibility. Eggplant.

Therefore, with this method, the packing can maintain its flexibility and shape retention, but since the core material embedded in the synthetic resin is in a discontinuous state, that is, it is cut in both directions, the tension in the longitudinal direction is It has no resistance to force and only has the tensile resistance that synthetic resin has, so it will be stretched more than necessary when it is attached to a vehicle, etc., and this will cause the packing to shrink later, making it impossible to apply it effectively. There is. In order to increase this retraction resistance and prevent the packing from elongating, there is a method of connecting each broken and separated wire with a cable and increasing the tensile force with this cable (refer to Jikkosho 3g-3sggg issue). Although it has been proposed, the process of burying the cable becomes necessary, increasing the number of manufacturing steps and increasing the cost of the product.

In addition, as shown in the figure, the core material manufactured by the press method retains its flexibility as an eight-pointed material even if the bridged portion is not broken and separated, and has a high tensile resistance to prevent tension. The material yield rate is poor due to press processing, and the productivity is poor and costs are increased because the strip metal plate is pressed one step at a time.

The present invention was made to improve this drawback, and will be explained in detail next.

First, a large number of discontinuous dogleg-shaped cuts 2 are made in the width direction of a metal plate 1 at intervals of hair lengths in the longitudinal direction.

This cut 2 is formed by using sawtooth-shaped upper and lower molds, and the lateral force is slightly elongated from the cut 2 by using a sawtooth-shaped upper and lower mold to form a lath net shape having a diamond-shaped void. Next, this is passed between flat rollers to form a tliA flat lath net 3.

In this case, it is preferable to use a metal plate with a width larger than the width of the shape-retaining core material in order to improve productivity and reduce costs. Cuts are made using a mold, and this is pressed to form a flat lath net, which is then cut to the required width.

When making a dogleg-shaped cut 2 in this metal plate l, each lath mesh is continuous as a shape-retaining core material so that it has a thick tensile resistance (zero elongation and flexibility). It is formed.

This cut 2 forms a diamond-shaped space 8 in the center of the 8-hole l, which is shown in detail in FIG.
The area 3 is completely closed by the mesh 4, but on both sides of this diamond-shaped cavity 30 (the end diamond-shaped cavity 5.5 is connected to the diamond-shaped cavity 3 in a staggered manner and through the mesh 4). However, this end 01
11 The H-shaped walls 5, 5 are open at their outer ends.

Therefore, the construction portion of each diamond-shaped void is the 14th bridge section 6, 7.
It is continuous in .

The packing 9 in which the shape-retaining core material thus formed is embedded and fixed with the synthetic resin 8 is bent into a U-shape in the width direction. When this is attached to the edge of the frame of a door or opening, it is bent along the door or frame, but if only the core material of this bent part is shown, it will form a central diamond shape on the inside of the curve as shown in Figure 7. The openings 5a, 5a, . . . on the Wla side, which is on the outer circumferential side of the curve, are opened even wider and bent. It becomes easy.

According to the present invention, the shape-retaining core material is cut into discontinuous shapes in a staggered manner, flattened with a press, cut to the required width, and then embedded in a synthetic resin layer. Therefore, it can be bent into a U-shape in the width direction and used as a packing.
When the shape of the glyph is firmly maintained, the bridging part of the 8-ri is cut off. -] Is it a female form where a part is open without F? The opening of the opening provides advantages such as no elongation of the packing phase and the ability to easily bend according to the bending of the knot.

Furthermore, it has the advantage that the material yield is high and it can be manufactured at low cost.

[Brief explanation of the drawings] Fig. 1 shows the shape-retaining core material of the Honzui Mei Packing;
Figure 2 is a plan view of the shape-retaining core material, Figure 31 is an external view of the packing in which the shape-retaining window 4 is embedded, and Figure 2 shows the bent state. An explanatory diagram showing the bending mode of the shape-retaining core material excluding the synthetic resin in the packing shown in Fig. 5 and 4, which are the well-known shape-retaining core materials. Diamond-shaped cut 4...mesh 5...end diamond-shaped void 5
a...Opening part 6.7..., l14th crosslinked part 8...Synthetic resin 9...Packing material, patent applicant Minami Otoyoshi

Claims (1)

[Scope of Claims] A flat core 42 cut to a required width and arranged discontinuously through a mesh in a diamond-shaped space is used to form a central diamond-shaped space and both tltll Ic, li! ] A diamond-shaped cavity is placed at the end with the end opening through the bridge part, and it opens at the diamond-shaped constriction on the side where the bend 11 exists, and is connected to the frame 44 s and extended. The shape-retaining core of the noggin is embedded and fixed in the synthetic resin 1rd so that it can be bent freely.