JPS6234436Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a mounting device for a cylindrical object such as a cylindrical condenser.

Cylindrical capacitors with outer cases made of plastic are known as capacitors used in electric fans and the like.

This is the first mounting device for installing such a cylindrical capacitor inside the cover of a motor such as an electric fan.
There was a sheet metal band 16 as shown in the figure, and a plastic band 18 as shown in FIG.

Each of these bands 16 and 18 was used by wrapping the outer case 9A of the capacitor 9 around the outer case 9A of the capacitor 9 and fixing it to the mounting portion with a fixing device such as a screw.

However, when using the metal band 16 shown in FIG. 1, a cushion is placed between the inner peripheral surface of the band 16 and the outer peripheral surface of the outer case 9A to prevent the plastic outer case 9A of the capacitor 9 from being damaged by over-tightening. It is necessary to interpose the material 17, which is time-consuming, increases cost, and is unstable in quality.

In addition, a plastic band 18 shown in FIG.
When using the outer case 9A of the condenser 9, which are both made of plastic, and the band 18, it may not be possible to securely sandwich the outer case 9A due to variations in dimensions, or conversely, the band 18 may not fit properly due to over-tightening. There was a risk of damage to the parts.

In view of the above-mentioned conventional circumstances, the present invention has a configuration in which a cylindrical object is tightened and supported using a coil spring, so that the cylindrical object can be easily and reliably attached, and can be manufactured at low cost, thereby eliminating the drawbacks of the conventional method. The present invention provides a mounting device for a cylindrical object that eliminates the problem.

Therefore, the present invention provides a coil spring in which a cylindrical object is fitted and supported in the direction of the center line of the inner periphery of the coil, and both ends of the coil spring are extended in the tangential direction, and the engaging portion of the fixture is provided at both extending portions. The coil springs are formed so as to be perpendicular to each other, and the engaging portion of the coil spring is fixed to the mounting portion of the cylindrical object via a fixture.

Hereinafter, one embodiment of the present invention will be described based on FIGS. 3 to 6.

Fig. 3 is a diagram showing the inside of an electric motor of a fan to which a cylindrical capacitor mounting device is applied as a cylindrical object mounting device according to the present invention, where 1 is a cover, 2 is a frame into which the stator 5 is press-fitted, and 3 is a bracket. , 4 are screws for tightening the frame 2 and the bracket 3.

6 is a rotor shaft, 7 is a gear box integrally formed with the bracket 3, 8 is a gear cover that covers this, 11 is a screw for attaching the balance weight 10, 13 is a crank fixed to the crankshaft 12 for swinging, Shaking rod 1
4 are connected.

9 is a cylindrical capacitor, and its mounting device is shown in FIGS. 4, 5, and 6.

In these figures, reference numeral 19 denotes a coil spring in which the cylindrical capacitor 9 is fitted and supported in the direction of the center line of the inner periphery of the coil 19A, and the coil spring 19 is extended in the tangential direction so that both ends cross each other to form straight parts 20 and 21. Curling portions 20a and 21a, which will become engaging portions of a fixture to be described later, are formed at the tips of both straight portions 20 and 21, respectively.

When attaching the cylindrical capacitor 9 using such a coil spring 19, the intersecting straight parts 20 and 21 of the coil spring 19 are pinched by hand and pushed in the direction of the arrow in FIG. 4 to expand the coil 19A and increase the inner diameter. After fitting the outer case 9A of the capacitor 9 to the inner periphery of the coil 19A, the coil spring 19 is fixed to the cover shown in FIG. 1, the capacitor 9 can be attached to the attachment portion 23.

If the capacitor 9 is attached using the coil spring 19 as described above, the elastic restoring force of the spring 19 can securely tighten and support the plastic outer case 9A of the capacitor 9 without damaging it. The coil 19A allows the coil spring 19 to expand freely even if there are dimensional variations in the coil spring 19.
Since this can be absorbed by the inner circumference, reliable tightening support can be achieved.

Furthermore, since the engaging portions of the fixing device are formed on both extending portions of the coil spring 19, the engaging portions at both ends can be used as shown in Figures 5 and 6 according to the usage situation, providing great versatility. Various installation methods are possible.

Further, since the coil spring 19 only requires simple processing, it is advantageous in terms of cost compared to the bands shown in FIGS. 1 and 2.

In addition, although the above structure shows an example in which the mounting device according to the present invention is applied to a cylindrical capacitor, the present invention is not limited to this, and can also be applied to a relatively lightweight cylindrical object.

As explained above, according to the present invention, a cylindrical object can be attached easily and reliably without damaging it using a simple structure attachment device using a coil spring, and it can be manufactured at low cost and has great practical effects. It is what it is.

[Brief explanation of drawings]

1 and 2 are views showing a conventional mounting device for a cylindrical object, in which a is a side view, b is a front view, and FIG. 3 is a vertical cross-section of the electric motor part of a fan to which the mounting device according to the present invention is applied. 4 are perspective views showing the coil spring of the mounting device according to the present invention, and FIGS. 5 and 6 are views showing the state in which the capacitor is mounted using the same coil spring, where a is a side view and b is a front view, respectively. be. 9... Cylindrical capacitor, 19... Coil spring, 19A... Coil, 20, 21... Straight section,
20a, 21a... curling section, 23, 24...
...Mounting part.

Claims (1)

[Claims for Utility Model Registration] (1) A coil spring is provided in which the cylindrical body is fitted and supported in the direction of the center line of the inner periphery of the coil, and both ends of the coil spring are respectively extended in the tangential direction, and both extending portions are provided. A device for attaching a cylindrical object, characterized in that the engaging portions of the fixing device are formed so as to face each other at right angles, and the engaging portion of the coil spring is fixed to the attaching portion of the cylindrical object via the fixing device. . (2) The cylindrical object mounting device according to claim 1, wherein the engaging portion of the fixture is a curling portion. (3) The cylindrical object mounting device according to claim 1 or 2, wherein the cylindrical object is a cylindrical capacitor.