JPH0660101U - Rotating terminal device - Google Patents

Abstract

(57) [Summary] [Purpose] At the output end of the potentiometer (electrical converter), move the terminal position so that wiring is possible in an easy-to-work state, and after wiring can be fixed so that it does not interfere with the surroundings. To do. [Structure] Base 21 fixed to the potentiometer body
The rotary cylinder 24 is rotatably supported by the rotary cylinder 24.
The terminal 32 as an output part of the potentiometer is provided on the peripheral surface of the
The position (angle) should be moved so that wiring is easy. Further, after wiring, the rotary cylinder 24 is rotated again so that the wiring does not interfere with surrounding parts, and in this state, the fixing screw 38 is tightened so that the rotary cylinder 24 can be non-rotatably fixed.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a rotary terminal device attached to the output end of an electrical converter.

[0002]

[Prior art]

 FIG. 15 shows a linear sliding potentiometer as an example of the electrical converter. In the figure, reference numeral 1 denotes a potentiometer main body, which is composed of a bottom base plate 2, a front substrate 3, a back substrate 4 and an upper face plate 5, which penetrates the front substrate 3 and causes a shaft 6 to slide linearly in the longitudinal direction. Supported as possible. An insulator 7 is fixed to the inner end of the shaft 6, and a slider 8 is attached to the insulator 7. On the other hand, an insulating plate 9 is fixed to the inner surface side of the bottom substrate 2, and a resistance element 10 is formed on the insulating plate 9, and the slider 8 is in sliding contact with the resistance element 10.

A terminal 11 is projected on the outer surface of the back substrate 4, and the terminal 11 is connected to the resistance element 10 via a lead wire 12. By sliding the shaft 6 back and forth in a straight line, the slider 8 moves on the resistance element 10 to change the resistance value, which is output from the terminal 11.

[0004]

[Problems to be solved by the device]

 Generally, in this potentiometer, the terminal for taking out the output is fixed and faces a certain direction.Therefore, when the potentiometer is incorporated into a set together with other parts, this terminal may interfere with other parts, or There were problems such as difficult wiring. The present invention has been made for the purpose of solving such a problem.

[0005]

[Means for Solving the Problems]

 In order to achieve the above object, the present invention provides a base portion fixed to a potentiometer body, a rotating body rotatably supported by the base portion, and a rotary body provided in the rotating body, which outputs the potentiometer inside. A terminal that is connected to the rotor, a detent mechanism that stops the rotating body at an arbitrary rotating position, a stopper mechanism that limits the rotation range of the rotating body, and a fixing mechanism that fixes the rotating body so that it cannot rotate. It provides a rotary terminal device.

[0006]

[Action]

 According to the rotary terminal device configured as described above, the position of the terminal as the output end of the potentiometer can be arbitrarily moved by rotating the rotating body. Even after it is fixed to the terminal, it is possible to move the terminal position and wire it to the terminal in a workable state. At this time, the rotating body is stopped by the detent mechanism at a rotation position where wiring is easy, so wiring work can be performed smoothly, and after the wiring, the rotating body is rotated so that the wiring does not interfere with other parts. It can be in a state. At this time, since the rotation range of the rotating body is regulated by the stopper mechanism, the wiring will not be twisted. Then, when the rotating body is rotated so that the wiring does not interfere with other parts as described above, the rotating body may be fixed by the fixing mechanism.

[0007]

【Example】

 Embodiments of the present invention will be described below with reference to the drawings. As shown in FIG. 1, the terminal device 20 according to the present invention is attached to the back substrate 4 as the output end of the linear sliding potentiometer body 1 as described above. 2 to 7 show a first embodiment.

In the drawings, 20 is a terminal device according to the present invention as a whole, 21 is its base, and this base 21 is a back substrate of the potentiometer main body 1 by screws in screw holes 21a provided at its four corners. It is fixed at 4. A base step portion 22 having a circumferential surface and a shaft column portion 23 protruding from the center of the base step portion 22 are integrally formed on the base stand 21, and the base step portion 22 of the base stand 21 is formed. A bottomed cylindrical rotary cylinder 24 is rotatably fitted and supported therein. Inside the rotary cylinder 24, a plurality of slip rings 25 (five in this example) having a V-shaped circumferential surface are fixed to the shaft column portion 23 of the base 21, and each of the slip rings 25 is fixed. And 25, and at both end portions, insulating rings 26 are inserted and fixed.

Further, a through hole 27 is formed in the base 21 so as to penetrate through the centers of the base step portion 22 and the shaft column portion 23, and one of the peripheral surfaces of the shaft column portion 23 is continuous with the through hole 27. A notched elongated hole 28 is formed in the portion, and a plurality of lead wires 29 are arranged through the through hole 27 and the notched elongated hole 28. One end of each of the lead wires 29 is connected and fixed to the inner peripheral portion of the slip ring 25, while the other end of the lead wire 29 is connected to a terminal 19 provided on the back side of the base 21. The terminal 19 and the output terminal of the potentiometer body are connected by a lead wire (the lead wire 29 can be directly connected to the output end of the potentiometer body).

A hole 30 is formed in the peripheral surface of the rotary cylinder 24 so as to correspond to the slip ring 25, and a terminal plate 31 is fixed by a screw so as to close the hole 30. A plurality of terminals 32 are provided upright on the front surface side of the terminal plate 31 corresponding to the respective slip rings 25, and sliding contacts 33 are provided on the back surface side of the terminal plate 32 continuously with the terminals 32. It is projected in a bifurcated shape and contacts the V-shaped groove on the peripheral surface so as to sandwich the slip ring 25, respectively.

With the above configuration, the terminal 32 in the terminal device 20 of this example serves as an output end from the potentiometer main body 1, and this output end can be adjusted to an arbitrary angle (direction) by rotating the rotary cylinder 24. Is.

Further, the terminal device 20 is provided with a detent mechanism for stopping the rotary cylinder 24 at an arbitrary rotational position. That is, this detent mechanism is fixedly screwed to the rotary cylinder 24 in correspondence with a plurality of recessed holes 34 formed at predetermined intervals on the peripheral surface of the base step portion 22 of the base 21 over substantially the entire circumference. It is composed of a ball plunger 35. In the ball plunger 35, a part of the ball 35a is elastically projected by the force of a spring arranged inside, and the ball 35a is elastically engaged with any one of the plurality of recessed holes 34. By doing so, the rotary cylinder 24 is lightly fixed at its rotational position.

Further, the terminal device 20 has a stopper mechanism for restricting the rotation range of the rotary cylinder 24. This stopper mechanism is composed of a stopper pin 36 implanted in the base 21 and a groove 37 correspondingly formed on the end surface of the rotary cylinder 24. The stopper pin 36 is engaged with the groove 37. I am fit. As shown in FIG. 7, the concave groove 37 is formed in a discontinuous annular shape centered on the rotation axis of the rotary cylinder 24, and the stopper pins 36 abut on both ends of the concave groove 37, whereby the rotary cylinder is rotated. The rotation of 24 is restricted, that is, the rotary cylinder 24 is rotatable within the range of the groove 37 (less than 360 °).

Further, in this terminal device 20, a fixing screw 38 is screwed to the tip end portion of the shaft column portion 23 of the base 21 through a center hole formed in the bottom portion of the rotary cylinder 24. By strongly tightening the fixing screw 38, the rotary cylinder 24 can be non-rotatably fixed to the base 21. Reference numeral 38a is a washer that is inserted between the head of the fixing screw 38 and the rotary cylinder 24.

As is apparent from the above configuration, according to the terminal device 20 of the present example, the position of the terminal 32 as the output part of the potentiometer can be arbitrarily moved by rotating the rotary cylinder 24. Even after the potentiometer body is fixed to the predetermined mounting portion, the lead wire for wiring can be connected to the terminal 32 in a state where the terminal position is moved and the work is easy. At this time, the rotating cylindrical body 24 is stopped at the rotation position where wiring is easy by the detent mechanism, so that the wiring work can be performed smoothly, that is, the number of wiring man-hours is improved.

Further, after the wiring, by rotating the rotary cylinder 24, the wiring can be kept out of the way of other parts. At this time, since the rotation range of the rotary cylinder 24 is restricted to less than 360 ° by the stopper mechanism, the wiring is not twisted. Then, when the rotary cylinder 24 is rotated so that the wiring does not interfere with other parts, the fixing screw 38 may be tightened with the roller to fix the rotary cylinder 24, and thus the wiring space may be efficiently used. It is possible.

In addition to the configuration of the first embodiment described above, FIG. 8 covers the rotating tubular body 24 with an L-shaped tubular body 39 so as to cover the terminals 32 entirely, and the L-shaped tubular body 39 is fixed by a fixing screw 38. It is assembled together. This configuration is an example in which the wires (lead wires) connected to the terminals 32 are put together by the L-shaped tubular body 39 so that the extraction direction can be easily changed.

9 to 11 show a second embodiment as another configuration example of the terminal device 20 according to the present invention. That is, in this example, the slip ring 25 has a thin plate shape, and a plurality of ring-shaped rotary cylinders 24 are rotatably assembled corresponding to the slip ring 25. A sliding contact 33 made of sheet metal is fixed to each of the rotary cylinders 24, and each of them is in surface contact with the slip ring 25. Further, a part of the slide contact 33 serves as a terminal 32 of the rotary cylinder 24. It is projected from the outer peripheral surface.

The plurality of rotary cylinders 24 are integrally connected and fixed together with a pressing lid 40 by a screw 41, and the innermost rotary cylinder 24 is provided with a ball plunger 35 constituting a detent mechanism and a stopper mechanism. The concave groove 37 that constitutes the above is formed. Further, in the structure of this embodiment, the fixing screw 38 is screwed to the tip end portion of the shaft column portion 23 of the base 21 through the center hole formed in the restraining lid 40, and by tightening the screw 38, the rotary cylinder 24 is closed. Has a structure to fix the non-rotatable.

In the terminal device 20 of the present example having the above-mentioned configuration, the slip ring 25 and the sliding contact 33 can be formed by a so-called blank so that the device can be made thin. Can be formed. Further, since the sliding contact 33 is a sheet metal, the spring pressure against the slip ring 25 can be set high, so that high stability can be obtained.

12 and 13 show a third embodiment. In this example, a printed circuit board 42 having a plurality of slip rings 25 concentrically formed is fixed to a rotary cylinder 24 rotatably attached to a base 21.

One printed board 42 is fixed to each of the inner and outer surfaces of the central portion of the rotary cylinder 24, and the printed board 42 is fixed to the base portion 22 of the base 21 and the tip of the shaft pillar portion 23 so as to face it. Sliding contacts 33 that come into contact with the slip ring 25 are provided on the restraining lid 40. The sliding contact 33 is connected to the terminal 19 via a lead wire 29, while the slip ring 25 is connected to a terminal 32 protruding on the outer peripheral surface of the rotary cylinder 24 via an internal lead wire. .

The terminal device 20 of the present example configured as described above can be formed in a small size (thin type) as a whole by providing the slip ring 25 concentrically, as in the case of the second embodiment. is there.

Further, FIG. 14 shows a fourth embodiment. That is, in this example, the screw groove 43 is formed on the outer periphery of the base step portion 22 of the base 21, the clamp ring 44 is screwed into the screw groove 43, and the rotation is rotatably attached to the base 21. A flange portion 45 is provided at an end portion of the tubular body 24, and the rotary tubular body 24 is fastened to the base 21 via the clamp ring 44 at the flange portion 45. In this example, the rotary cylinder 24 is L-shaped so that the lead-out direction of the lead wire connected to the terminal 32 can be easily defined.

A terminal plate 46 having a plurality of slip rings 25 is fixed inside the rotary cylinder 24, and on the other hand, a sliding contact which faces the base plate 21 and contacts the slip rings 25 respectively. 33 is provided. The slip ring 25 is connected to the terminal 32 protruding through the terminal plate 46, and the sliding contact 33 is connected to the terminal 47 protruding through the central portion of the base 21 (this terminal 47). To the lead wire from the main body of the potentiometer). Each of the terminals 32 and 47 has a penetrating structure formed integrally with the terminal plate 46 and the base 21 or by a method such as press fitting.

As is apparent from the above-described configuration, in the terminal device 20 of this example, the rotary cylinder 24 can be rotated by loosening the clamp ring 44, and the rotary cylinder 24 cannot be rotated by tightening the clamp ring 44. That is, there is an advantage that the fixing work of the rotary cylinder 24 can be easily performed as compared with the case of using the fixing screw as in the above-described embodiment.

It should be noted that the terminal device 20 of the above-described embodiment is basically used by attaching the base 21 to the back substrate 4 of the potentiometer body 1 as shown in FIG. The present invention also includes a structure in which 4 also serves as the base 21. Further, the terminal device of the present invention is not limited to the linear sliding type potentiometer illustrated above, but can be applied to rotary potentiometers as well as electrical converters such as rotary switches and transducers. Furthermore, it goes without saying that the above embodiments do not specify the present invention in the structures of other parts, and various changes and modifications are possible.

[0028]

[Effect of device]

 As described above, according to the present invention, it is possible to change the terminal position for any mounting of the potentiometer (electrical converter), resulting in improvement of wiring man-hours and efficient use of wiring space. Became.

[Brief description of drawings]

FIG. 1 is an explanatory view of how the device of the present invention is attached to a linear sliding potentiometer.

FIG. 2 is a perspective view showing a first embodiment of the device of the present invention.

FIG. 3 is an exploded perspective view of the same.

FIG. 4 is a plan view (top view) of the same.

FIG. 5 is a vertical side view of the same.

FIG. 6 is a front view of the same.

FIG. 7 is an explanatory diagram of a concave groove shape of a stopper mechanism.

FIG. 8 is a perspective view of a modification of the first embodiment.

FIG. 9 is an exploded perspective view showing a second embodiment.

FIG. 10 is a vertical side view of the same.

FIG. 11 is a front view of the same.

FIG. 12 is an exploded perspective view showing a third embodiment.

FIG. 13 is a vertical sectional side view of the same.

FIG. 14 is a vertical sectional side view showing a fourth embodiment.

FIG. 15 is an explanatory diagram of a linear sliding potentiometer.

[Explanation of symbols]

 1 Potentiometer Main Body 20 Terminal Device 21 Base 24 Rotating Cylindrical Body 32 Terminal 34 Recessed Hole 35 Ball Plunger 36 Stopper Pin 37 Recessed Groove 38 Fixing Screw

Claims (1)

[Scope of utility model registration request] 1. A rotary terminal device attached to an output part of an electric converter, comprising: a base part fixed to the potentiometer; a rotating body rotatably supported by the base part; A terminal provided on the rotating body and internally connected to the output end of the electrical converter, a detent mechanism for stopping the rotating body at an arbitrary rotation position, and a stopper mechanism for restricting a rotation range of the rotating body, A rotary type terminal device, comprising: a fixing mechanism that fixes the rotating body so that it cannot rotate.