JPS6340359B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rod-shaped heater support device for supporting a snow-melting rod-shaped heater used in an antenna or the like.

A conventional support device of this type is shown in FIGS. 1 and 2 and will be described. In FIG. 1, 1 is a rod-shaped heater, 2 is an end of the rod-shaped heater, 3 is an upper shingle plate,
Reference numeral 4 indicates a lower shingle plate, 5 a support plate, 6 a support bolt, 7 an insulator, and 8 an insulator support fitting.

In the configuration shown in FIG. 1, the rod-shaped heater 1 is supported by an insulator 7 having good heat resistance and insulation resistance, and the insulator 7 is further attached to the support plate 5 by an insulator support fitting 8. An upper shielding plate 3 is placed on the upper surface of the heat generating part of the rod-shaped heater 1, and a lower shielding plate 4 is placed on the lower surface thereof.
is positioned and supported by support bolts 6 and attached to support plate 5. FIG. 2 shows an enlarged view of the shape of the insulator 7.

Since the conventional insulator 7 is formed in a cylindrical shape,
It was necessary to insert the rod-shaped heater 1 into the heater before waterproofing the both ends 2 thereof. For this reason, insulator 7
When the insulator 7 broke, it was not possible to insert the insulator 7 into the rod-shaped heater if both ends had been processed. In addition, the heating wire inserted inside the rod-shaped heater 1 and the heater surface are likely to short-circuit, and if the insulation plates 3 and 4 attached to the top and bottom of the rod-shaped heater 1 bend due to their own weight, the rod-shaped heater 1 If you come into contact with
There was a risk that current would flow to the support plate 5 through the shield plates 3, 4 and the support bolts 6, causing insulation failure. Another disadvantage is that it takes time to adjust the support bolts 6 for positioning the shield plates 3, 4, the rod-shaped heater 1, and the support plate 5.

This invention was made in order to eliminate the drawbacks of the conventional insulators as described above, and the insulators can be split in half and replaced, and at the same time, the insulators can be replaced.
It was made supportable. In addition, the shield plate support is designed to fit into the guide, and the shield plate can be insulated from the support plate, thereby achieving higher safety.

An embodiment of the present invention will be described below with reference to the drawings.
In FIGS. 3 and 4, the same parts as in FIGS. 1 and 2 are indicated by the same reference numerals. In FIG. 3, 1 is a rod-shaped heater, 2 is an end of the rod-shaped heater, 3 is an upper insulator plate, 4 is a lower insulator plate, 5 is a support plate, 9 is an insulator fixing bolt, 10 is an upper insulator, Reference numeral 11 indicates a heater support insulator, and 12 indicates a lower insulator.

FIG. 4 shows a detailed view of the upper insulator 10, the heater support insulator 11, and the lower insulator 12. As shown in the figure, the upper insulator 10 has a notch for stopping the rotation of the bolt that matches the hexagonal shape of the insulator fixing bolt 9, and each insulator has a through hole 13 for the bolt. . Further, the heater support insulator 11 is divided into two parts, and a recessed part for holding the rod-shaped heater 1 is formed on each contact surface. Further, step portions forming fitting surfaces are formed on the facing surfaces of the upper insulator 10 and the first heater supporting insulator 11 and the facing surfaces of the lower insulator 12 and the second heater supporting insulator 11, respectively.

Details of the insulator used in the present invention are shown in Figure 4.
FIG. 3 shows an assembled configuration of the insulator, the rod-shaped heater 1, and the shield plates 3 and 4. Next, the assembly order of this invention will be explained.

First, the lower insulator 12 is placed at a predetermined position on the support plate 5 in which the through hole 13 for the insulator fixing bolt 9 is made, and the lower insulator 12, which is machined to match the shape of the lower insulator 12, is fitted onto it. Lower shield plate 4 with a through hole formed in a shape corresponding to the recessed part
is inserted. Next, the heater support insulator 11 is fitted onto the lower insulator 12 with its fitting convex portion passing through the through hole of the lower shield plate 4. Next, the rod-shaped heater 1 is mounted on the recess of the lower heater support insulator 11, and then
It is held at 1. Next, the upper insulation plate 3, which has been processed in the same manner as the lower insulation plate 4 and has a cutout corresponding to the fitting recess of the upper insulator 10, is inserted thereon, and then the heater support insulator is inserted. The upper insulator 10 that is fitted with the upper insulator 11 is fitted. After each insulator 10, 11, 12, rod-shaped heater 1, and insulation plates 3, 4 are assembled in this way, the insulator fixing bolt 9 is inserted from the upper insulator 10 side.
is inserted and penetrated through the support plate 5, and is tightened and fixed with a nut etc. from the underside of the support plate 5, and the flexible plates 3 and 4 are
and a support plate 5 that holds the rod-shaped heater 1 between insulators.
Attach to. Incidentally, since the head of the bolt 9 is fitted into the rotation stopper notch of the upper insulator 10 when the nut is tightened, the tightening operation can be easily performed.

As shown in FIG. 4, the present invention has a shape in which all three points, the heater support portion, the through hole 13 for bolt insertion, and the insulation plate contact portion, are insulated with insulators.

The above embodiment can be used in any model using a rod-shaped heater. Unlike the conventional method, there is no need to insert an insulator into the heater before processing the heater terminal, and if the insulator is damaged, it can be easily replaced. Also, the fixing bolt and rod heater are
Since they are in contact with each other across the insulator, there is no need to worry about short circuits between the bolt and heater.

As described above, according to the present invention, the positioning and assembly of the shield plate and the rod-shaped heater can be easily performed.
Assembly man-hours can be drastically reduced. Furthermore, since the rod-shaped heater is insulated with insulators, the insulating plate with which the rod-shaped heater may come into contact can also be insulated from other parts, providing the same safety effect as double insulation.

[Brief explanation of the drawing]

FIG. 1 is a three-dimensional view showing a conventional rod-shaped heater support device, FIG. 2 is an enlarged view of a conventional insulator, FIG. 3 is a three-dimensional view of an embodiment of the present invention, and FIG. FIG. 2 is a configuration diagram showing an example of an insulator. In the figure, 1 is a rod-shaped heater, 2 is an end of the rod-shaped heater,
3 is an upper insulator, 4 is a lower insulator, 5 is a support plate that supports the whole, 9 is an insulator fixing bolt, 10 is an upper insulator, 11 is a first and second heater support insulator, 12 1 is a lower insulator, and 13 is a through hole. In addition, in the figures, the same reference numerals indicate the same or corresponding parts.

Claims (1)

[Claims] 1. A first heater that has a lower insulator placed on a support plate and a fitting surface with the lower insulator, and a recessed portion for holding a rod-shaped heater on the surface opposite to the fitting surface. A second heater support insulator having a recessed portion for holding the rod-shaped heater formed on the contact surface between the support insulator and the first heater support insulator, and a fitting surface between the second heater support insulator and the second heater support insulator. and an upper insulator with a fixing through hole provided in each of the insulators, and between the lower insulator and the first heater support insulator and between the upper insulator and the second heater support insulator. In between, a shield plate with a through hole or notch processed at a position corresponding to the through hole is placed, and a rod-shaped heater is placed in the recess of the heater support insulator, and a rod heater is placed in the through hole of each insulator. A rod-shaped heater support device in which the insulating plate and the rod-shaped heater are held between the insulators by inserting and tightening bolts for fixing the insulators.