JPS5851716A - Cable supporting tool - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to improvements in cable supports made of glass fiber reinforced plastics.

Recently, cable supports are being changed from traditional steel to glass fiber reinforced plastic (IFRP).

Various methods are known for molding FRF products, but FRF
For molding RP cable supports.

The Matsushidodai method using 8MO is attracting attention.

This matte die method uses 5M0 (i.e., a sheet molding compound in which a hardening resin is coated and impregnated on a matte layer formed by scattering glass chopped strands, and the resin is semi-cured to a non-sticky level). In this method, the resin is packed into a mold in the form of a roll or in a stacked state, and then heated and pressed to form a product shape. At the same time, the resin is completely cured. According to this method, since the glass fibers exist in the form of chopped strands or scattered layers, the glass fibers flow well together with the resin, ensuring good moldability even for products with complex shapes.

By the way, as a cable support device, as shown in Fig. 1, a seat part a° is provided at one end of the cable support arm l° in a T-shaped crossing state, and this seat part 2° is bolted to the support base. In this cable support, the rotation angle indicated by m of a, *xWi can be adjusted, which is advantageous for supporting the cable offset part. The installation is convenient, such as being installed on the vertical support in the Han-dong road.

However, in the above-mentioned cable support, there is a right angle corner part between the seat part 2' and the arm part 1'', and this cable support is formed by the above-described matte die method. For example, at the Ilo right angle Poona point, the glass strand of SMO (length l 011m1N50
m111) fhSince it is difficult to flow across the corner and tends to flow along the corner line, at the above-mentioned right-angled corner of the cable support, the glass chopped strand bore arm is The degree of orientation in the direction perpendicular to the length direction is significant. In particular, SM has a large amount of glass fiber (boaO~76% by weight)
This tendency is remarkable when O is used.

However, considering the state of the T-pull fabric supporting the cable support, it is ideal that the cable support is oriented in the length direction of the Glass Chopped Strand cable support, and the above-mentioned right-angled glass chops are The extent to which the PDP strands contribute to the above stress burden is small, and therefore, in the cable support molded with SMO, the strength of the intersection between the seat and the arm is small, and the cable support is made of PRP. The technical significance of manufacturing is diminished.

The SMG cable support according to the present invention has a configuration that can eliminate the above-mentioned problems, and includes a seat fixed to a support base and a cable support arm protruding from the seat, It is characterized by being molded from SMG and having a reinforcing core material embedded in the joint between the seat and the arm.

The present invention will be explained below with reference to the drawings.

FIG. 2A is a side view showing a cable support according to the present invention;
FIG. 2B is a top view showing the same cable support, and 0-0 cross-sectional views and Kn-I) cross-sectional views in FIG. 2A in FIG. 20 and FIG. 2 DF1, respectively.

As shown in FIGS. 2A to 2D, this is a seat that is fixed to the one-branch support base, and is provided with holes 11.11 for bolt fixing. s#i This is an arm part for supporting a cable that projects perpendicularly from the center of the seat l, and has a protrusion 21 for a ball stopper at its tip. The arm portion 2 has a rectangular cross-sectional shape in order to increase bending rigidity. Reference numeral 3 denotes a reinforcing lip provided along the lower edge of the arm portion 2. This rib 3, the above-mentioned seat part 1, and the arm part 2IIiSMO are integrally formed by press molding. 4#i is a reinforcing core material,
The seat part 1 is embedded in the joint area between the seat part 1 and the seat part 1.

Figure 3 shows an example of the reinforcing core material 4, and shows a portion 42 that is buried at the end of the arm. and a portion 41 for the SCS, and are provided with a number of holes (at least one in each of the portions 41, 41 and 42) for integration with the SMO. It is desirable to use a non-magnetic material for this reinforcing core material 4 in order to prevent iron loss due to the magnetic field generated from the power cable. For example, stainless steel can be used. Also, glass cloth (woven cloth).

It is also possible to use an FRP product obtained by laminating nonwoven fabrics, impregnating and curing a thermosetting resin, and then molding the product.

As shown in FIG.
The part corresponding to the seat part of O is divided into two prongs a and a, and then pushed into a mold and compression molded using a hot press. (A small amount of thermoplastic resin may be added as a molding aid) - can be completely cured. In this case, to SMO.

It is desirable to use high-strength SMO with a glass content of 50 to 70 weight arcs.

In the cable support manufactured in this way,
Because of the reinforcing core material, the flow of SMO at the right angle corner between the seat and the arm tends to flow in the length direction of the cable arm9. Orientation in the direction perpendicular to the length direction of the arm part is reduced, and since this point is reinforced by embedding the reinforcing core material, the above-mentioned orthogonal orientation of the chopped glass strands, which is disadvantageous in terms of strength, is no longer a problem. Must not be.

The SMO cable support according to the present invention has the configuration as described above, and the chopped glass strands are oriented in a direction perpendicular to the longitudinal direction of the arm at the right angle corner between the seat and the arm. Since this part is reinforced with the reinforcing core material, it is possible to provide an SMO cable support with excellent overall strength. Furthermore, since most of the material is made of SMO, it has excellent lightness and moldability.

[Brief explanation of the drawing]

Figure 1 is an explanatory diagram showing a conventional cable support, Figure 2A
is a side view showing a cable support according to the present invention, FIG. 2B is a top view showing a cable support according to the present invention, and FIGS. 2O and 2'D are 0-0 in FIG. 2A. 3 is an explanatory diagram showing a reinforcing core material used in the present invention, and FIG. 4 is an explanatory diagram showing a method of forming a cable support according to the present invention. In the figure, 1 is a seat part, 2 is an arm part, and 4 is a reinforcing core material.

Claims (3)

[Claims] (1) Comprising a seat fixed to a support base and a cable support arm protruding from the seat, molded from SMO, and provided with a reinforcing core material at the joint between the seat and the arm. A cable support device characterized in that it is embedded. (2) The cable support according to claim 1, wherein the SMO has a glass fiber content of 50 to 70% by weight. (3) The cable support according to claim 1 or 2, wherein the reinforcing core material is made of non-magnetic metal.