JPS6033588Y2 - Sheathed heater mounting device - Google Patents

Description

[Detailed description of the invention] [Industrial field of application] This invention relates to a mounting device for a sheathed heater used as a heater for heating an air conditioner, etc., and in particular, the invention relates to a mounting device for a sheathed heater used as a heater for heating an air conditioner or the like. This invention relates to a heater mounting device.

[Conventional technology]

Figures 1 and 2 are a plan view and its ■-
■This is a line sectional view, in which one clamping plate 6 having a notch 7 and a presser claw 8 with which a holder 3 made of an insulator or the like engages is fixed to opposing sides of the frame 1 by welding or the like. ,
The other clamping plate 9 is fixed to the central part of the inner surface in the direction perpendicular to the clamping plate 6, and the sheathed heater 2, which is bent as appropriate, is inserted into the insertion hole 4 provided in the holder 3. was fitted into the notch 7 of each clamping plate 69, and by bending the presser claw 8, the bent portion and both ends were clamped and fixed.

In the above configuration, the installation procedure will be explained.

First, both ends of one clamping plate 6 are placed close to one end of the opposing side surfaces of the frame 1, and one end of the other clamping plate 9 is placed at the center of the side surface of the other end of the frame 1 in a direction perpendicular to the clamping plate 6. They are fixed to each other by welding, etc.

Next, the holders 3 are inserted into the bent portion and both ends of the sheathed heater 2, respectively, and the holders 3 are fitted into the notches 7 of the clamping plate 69, and the presser claws 8 are bent to hold the holders 3 in each of the clamps. It is fixed to the plate 69.

Thereby, the lateral movement of the sheathed heater 2 is regulated by the holders 3 at both ends, and the longitudinal movement is regulated by the holders 3 at the bent portions.

[Problem that the invention attempts to solve]

The conventional mounting device is constructed as described above, and the inner diameter of the insertion hole 4 of the holder 3 is slightly larger than the outer diameter of the sheathed heater 2 in order to facilitate insertion of the sheathed heater 2. being intimidated.

For this reason, although the movement of the sheathed heater 2 in the lateral and longitudinal directions is restricted by the holder 3, the slight dimensional difference between the inner diameter of the through hole 4 and the outer diameter of the sheathed heater 2 causes play, which causes There has been a problem in that the holder 3 may be damaged due to vibrations caused by time or the like.

This idea was devised to solve the above-mentioned problems, and it prevents rattling due to the difference in dimension between the inner diameter of the insertion hole provided in the holder and the outer diameter of the sheathed heater, and makes it easier to transport during transportation. It is an object of the present invention to provide a sheathed heater mounting device that can prevent damage to a holder from vibrations such as the above.

[Means for solving problems]

The sheathed heater mounting device according to this invention has a holding device disposed between the bent part of the sheathed heater and a holding device inserted through both ends, and this holding device is clamped by another clamping plate to attach the sheathed heater. The bent portion and the circumferential surfaces of both ends of the sheathed heater are pressed against the holding surfaces of the respective holders.

[Effect]

In the sheathed heater mounting device of this invention, a presser is placed between the bent part of the sheathed heater and the holders inserted through both ends, and the sheathed heater is clamped and fixed to another clamping plate while being pressed against the curved surface of the sheathed heater. As a result, the holding surface of the holder inserted through the bent part and both ends of the sheathed heater comes into pressure contact with the circumferential surface of the sheathed heater, which prevents backlash due to the dimensional difference between the inner diameter of the insertion hole and the outer diameter of the sheathed heater. Occurrence is prevented.

〔Example〕

An embodiment of this invention will be described below with reference to FIGS. 3 and 4.

In Figures 3 and 4, 1 is a frame body, 2 is a sheathed heater bent into a U-shape, and 3 is provided at the bent part and both ends of this sheathed heater, and the sheathed heater is inserted through the center. and a groove 5 for engagement on the outer periphery.
A holder 6 is made of an insulator or the like provided with a notch 7 whose both ends are attached to a pair of opposing side surfaces of the frame 1 by welding or the like, and which engages with the groove 5 of the holder 3. A pair of clamping plates 9 each having a width corresponding to the bent portion of the sheathed heater 2 are formed with a pair of clamping claws 8 for clamping and fixing the sheathed heater 2; A clamping plate 10 is attached to the frame 1 with one end attached by welding or the like to the central part of the side surface in a direction perpendicular to the clamping plate 6, and is inserted between the holder 3 inserted into the bent part and both ends of the sheathed heater 2, respectively. A presser with the same structure as the holder 3 is used.

11 is a notch 13 and a presser claw 14 similar to the clamping plate 6.
The holding plate has both ends fixed to the frame 1 with screws 12, and the presser 10 is clamped and fixed thereto.

However, as shown in FIG. 4, the clamping plate 11 of the lever is provided so that the orientation of the notch 13 is opposite to the orientation of the notch 77 of the clamping plate 69, so that the clamping plate 11 is fixed to the frame 1. As shown in FIG. 4, the presser 10 is pressed so that it is located one dimension below the horizontal line connecting the holders 33 clamped and fixed to the clamping plate 69.

In the above configuration, to explain how to attach the sheathed heater 2, first the holder 3 and the presser 10 are attached to the sheathed heater 2.
first, the holder 3 is engaged with the notch 7 of each clamping plate 69, and the presser claw 8 is bent to fix the sheathed heater 2.

Next, the notch 13 of the clamping plate 11 is engaged with the presser 10 disposed between the holders 3 from above, and the sheathed heater 2 is pushed downward against the elastic force until the curved surface of the sheathed heater 2 comes into pressure contact with the holding surface of the holder 3. The holding plate 11 is fixed to the frame body 1 with the screws 12 in the pressed state.

Finally, bend the presser claw 14 and hold the presser 10 on the clamping plate 11.
The installation is completed by clamping and fixing it.

According to the configuration of the embodiment described above, even if there is a dimensional difference between the inner diameter of the through hole 4 provided in the holder 3 and the outer diameter of the sheathed heater 2, the sheathed heater 2 is held at its bent portion and both ends, respectively. Since it is attached so as to be in pressure contact with the tool, it is possible to prevent play from occurring and to prevent damage to the holder due to vibrations during transportation.

[Effect of idea]

As described above, according to this invention, a presser is disposed between the bent part of the sheathed heater and the holders at both ends, and the presser is held by a separate clamping plate from which the holder is clamped and fixed. The sheathed heater is clamped by a plate to press the circumferential surface of the sheathed heater, and the curved part and both ends of the sheathed heater are pressed against the holding surface of the holder. This has the effect of preventing play from occurring due to the dimensional difference between the inner diameter and the outer diameter of the sheathed heater, and preventing damage to the holder from vibrations during transportation.

[Brief explanation of the drawing]

Figure 1 is a plan view showing a conventional sheathed heater mounting device;
2 is a sectional view taken along the line ■--■ in FIG. 1, FIG. 3 is a plan view showing an embodiment of this invention, and FIG. 4 is a sectional view taken along the line IV--IV in FIG. In the figure, 1 is a frame, 2 is a sheathed heater, 3 is a holder, 6,
9 and 11 are clamping plates, and 10 is a presser. Note that the same reference numerals in the figures indicate the same or equivalent parts.

Claims (1)

[Scope of utility model registration request] A sheathed heater formed with appropriate bends, a holder that is inserted through at least the bent portion and both ends of the heater and holds the peripheral surface thereof, a clamping plate that clamps the holder in a predetermined position, and a clamping plate that holds the holder in a predetermined position. A frame body for fixing the sheathed heater, and a presser disposed between the bent portion of the sheathed heater and the holders at both ends, and another clamping plate for clamping the presser; Another clamping plate presses the circumferential surface of the sheathed heater through the presser, and presses the circumferential surface of the sheathed heater at the bent portion and both ends of the frame so that the circumferential surface of the sheathed heater comes into pressure contact with the holding surface of each holder. A sheathed heater mounting device that is fixed to the