JPH019123Y2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Application Field The present invention relates to a potentiometer used as a sensor for industrial equipment, etc.

Structure of a conventional example and its problems A conventional potentiometer will be explained with reference to FIGS. 1 and 2. In the figure, 1 is a potentiometer main body, 2 is a flange portion formed integrally with the potentiometer main body 1, and 3 is this flange portion 2.
4 is an operating shaft of the potentiometer main body 1, 5 is a rotating shaft connected to this operating shaft 4, and this rotating shaft 5 is connected to the object to be measured (Fig. (not shown) on the operating shaft 4 above.
It has the function of communicating.

When this potentiometer is normally used as a sensor, in order to measure the output value of the rotating shaft 5 and the potentiometer body 1, the mounting bolt 6 for attaching the potentiometer body 1 is attached to the above-mentioned mounting length. It was necessary to set it at an appropriate position within the hole 3 and attach it to the mounting plate 8 on the device main body side using the nut 7.

However, this configuration has the problem that fine adjustment is difficult and time-consuming due to slight movement of the mounting position when tightening the bolt 6.

Purpose of the invention The object of the invention is to solve the above-mentioned problems and provide a potentiometer that allows easy position adjustment when the potentiometer body is attached.

Structure of the Invention In order to achieve this object, the potentiometer of the invention includes a potentiometer body, a flange portion integrally provided on the potentiometer body, and a driven portion provided on the outer periphery of the flange portion. a means portion, a driving means portion for driving the driven means portion, a flange portion inserted into the outer periphery of the potentiometer body, and a flange portion interposed between the collar portion and the flange portion and the potentiometer body. It is a coil spring that is inserted into the outer circumference of the potentiometer, and one end is locked to the operating shaft, and the other end is locked to the potentiometer body, and the operating shaft is biased toward one end. The device has a mounting hole for attaching it to the main body of the device. According to this configuration, by rotating the flange against the spring and shifting the operating shaft to one end, when the operating shaft is inserted into the rotating shaft of the object to be measured, even if there is a gap between the two. Since the operating shaft abuts on one side, the mounting position of the potentiometer body can be easily adjusted.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below in Figures 3 to 5.
This will be explained with figures. In Figures 3 to 5, 9
1 is a potentiometer main body, 10 is a collar part provided integrally with this potentiometer main body 9, and this collar part 10 has an outer diameter larger than the potentiometer main body 9 and has a gear part 11 on a part of its outer periphery. are doing. Reference numeral 12 denotes a flange portion inserted into the outer periphery of the potentiometer main body 9, and this flange portion 12 has a hole 13 in the center, which is larger than the outer diameter of the potentiometer main body 9 and smaller than the outer diameter of the collar portion 10. , and a mounting hole 14 for mounting on the main body of the device is provided in the peripheral portion. A spring 15 is inserted into the outer periphery of the potentiometer main body 9 and is interposed between the collar portion 10 and the flange portion 12 in an elastic state. Reference numeral 16 denotes a mounting plate on the equipment body side to which the flange portion 12 is attached using bolts 17 and nuts 18, 20 is an operating shaft of the potentiometer main body 8, 21 is a protrusion protruding from this operating shaft 20, and 22 is a potentiometer The locking portion 23 provided on the yometer body is the above-mentioned protrusion 21 and locking portion 22.
This coil spring 2 is inserted into the operating shaft 20 and has both ends locked to the coil spring 2.
3, the operating shaft is arranged so as to be offset toward the end in one rotational direction. Reference numeral 24 denotes a rotating shaft that has the function of transmitting the rotational position of the object to be measured to the operating shaft 20. (Note that the rotating shaft 24 has a notch 25 that is inserted into the protrusion 21 of the operating shaft 20.
The protrusion 21 of the operation shaft 20 is connected to the notch 2 of the rotation shaft 24.
5, even if the protrusion 21 and notch 25
(Even if there is a gap between them, the protrusion 21 always comes into contact with either side of the notch 25 due to the coil spring 23.) The flange portion 12 inserted into the outer periphery of the potentiometer body 9 connects the collar portion 10 to the bolt 17 via the spring 15.
After tightening and clamping with the nut 18 and connecting the rotating shaft 21 and the operating shaft 20, the collar portion 10 is rotated by an appropriate driving means using the gear portion 11 against the elastic force of the spring 15, The output of the potentiometer main body 9 is specified while the rotating shaft 21 is kept constant.

Here, a rotating body having a gear portion corresponding to the gear portion 11 of the collar portion 10 is provided in close proximity to the potentiometer main body 9, and this rotating body allows the gear portion 11 to
It is also possible to drive the motor. Further, the gear portion 11 of the collar portion 10 may be a driven means portion having another configuration.

Effects of the invention As described above, the potentiometer of the invention is constructed in such a way that the flange part and the potentiometer body are separate parts, and the outer periphery of the flange part, which is provided integrally with the potentiometer body, is covered. By providing a driving means and interposing a spring between the flange and the collar, the collar is rotated using the driven means against the spring, and the rotational position of the potentiometer body can be adjusted. Furthermore, even if there is a gap between the operating axis and the rotary axis on the equipment side, the relationship between the operating axis and the rotating axis is always constant due to the coil spring, so the position of the potentiometer body can be adjusted while keeping the rotating axis constant. It is easy to specify the output. Furthermore, if the collar is rotated by a rotating body having a gear portion corresponding to the gear portion of the collar, the output of the potentiometer main body can be specified more easily.

[Brief explanation of the drawing]

Figure 1 is a top view of a conventional potentiometer, Figure 2 is a partially sectional front view showing how the potentiometer is installed, and Figure 3 is how the potentiometer according to the present invention is installed. Fig. 4 is a top view of the potentiometer of the present invention, and Fig. 5 is a front view showing a partially sectional view of the potentiometer. It is an enlarged view of the part. 9...Potentiometer body, 10...Brim part, 11...Driven means part (gear part), 12...
...Flange part, 15...Spring, 20...Operation shaft, 21...Protrusion part, 23...Coil spring, 24...Rotating shaft (object to be measured), 25...Notch part.

Claims (1)

[Claims for Utility Model Registration] (1) A potentiometer body, a flange portion integrally provided on the potentiometer body, a driven means portion provided on the outer periphery of this flange portion, and this driven means body. a driving means part for driving the means part; a flange part inserted into the outer periphery of the potentiometer main body; and a spring interposed between the collar part and the flange part and inserted into the outer periphery of the potentiometer main body. and an operating shaft protruding from the potentiometer body, a protrusion attached to the operating shaft, one end of which is locked to the protrusion, and the other end of the potentiometer to the locking part of the potentiometer body. , consisting of a coil spring inserted into the operating shaft and a rotating shaft on the side of the object to be measured having a notch that engages with the protrusion of the operating shaft, and the flange has a mounting hole for attaching to the main body of the device. Potentiometer. (2) A gear part is provided as a driven means part on the outer periphery of the collar part, and a rotating body having a gear part corresponding to the gear part as a driving means part is provided in a position close to the potentiometer main body. A potentiometer according to claim (1) of the utility model registration.