JPH066481Y2 - Multi-axis variable resistor - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial field of use] The present invention relates to a multi-axis variable resistor in which operation shafts are arranged in a plurality of upper and lower stages on a common plate surface of a vertically oriented casing.

[Summary of the Invention] The present invention has a plurality of long operation shafts and short operation shafts vertically arranged on a common plate surface of a vertically oriented casing so that the long operation shafts are not adjacent to each other in each stage. And a plurality of long-axis variable resistors which are arranged so as to pass through so that the long operation shafts are not adjacent to each other in adjacent stages, and which are operated by the respective long operation shafts on the back of the common plate surface. A main body and a plurality of short axis variable resistor bodies that are operated by the respective short operating axes are provided, and the lengths of the short operating axes are set so that the long operating axes do not interfere with the operation of the long operating axes. Each of the short operating shafts is selected to be shorter than the shaft, a tool locking portion for rotating the short operating shaft is provided at the tip of each of the short operating shafts, and the vertical casing is prevented from tilting on the back side of the vertical casing. An auxiliary arm is provided, and the lower surface of the auxiliary arm is inserted into the circuit board. A projection for holding, and a hook piece for engaging with the circuit board is provided on the lower portion of the front side of the vertically oriented casing, and the hook piece and the protrusion are provided at the lower portion of the vertically oriented casing. The terminals of each of the variable resistor bodies are provided so as to be interposed therebetween.

[Prior Art] In a conventional multi-axis variable resistor of this type, a plurality of operation shafts are arranged in a row in a common plate surface of a vertically oriented casing, and the operation shafts are arranged on a back surface of the plate surface of the vertically oriented casing. Has a structure in which a variable resistor main body that is operated by each operation shaft is supported, and an auxiliary arm that prevents the vertical casing from tilting is provided on the back side of the vertical casing.

[Problems to be Solved by the Invention] However, in such a structure, when the number of operation shafts is increased, the lateral dimension of the casing is increased.

In order to improve this, it may be possible to arrange the operation shaft in the casing so that the operation shaft penetrates up and down in multiple steps, but with the conventional structure, even if the auxiliary arm for tilt prevention is on the back side, it is possible to operate it. When there are multiple stages in the vertical direction, the larger the number of stages in the vertical direction of the operating shaft, the greater the rotational moment when the uppermost operating shaft is pushed, and as a result, the auxiliary arm As a fulcrum, the force of lifting the front part of the casing becomes large, and there is a problem that after several operations, a contact failure accident due to peeling of the soldered part on the terminal side may occur. It was

The object of the present invention is to prevent an increase in the lateral and vertical dimensions of the casing even if the number of operating shafts is increased. An object of the present invention is to provide a multi-axis variable resistor that can prevent a contact failure accident of a terminal.

[Means for Solving Problems] A configuration of a multi-axis variable resistor according to the present invention for achieving the above object will be described with reference to FIGS. 1 to 3 corresponding to an embodiment. According to the present invention, a plurality of long operating shafts 3 and short operating shafts 6 are vertically arranged on a common plate surface 2 of a vertically oriented casing 1 so that the long operating shafts 3 are not adjacent to each other in each stage. Further, the long operation shafts 3 are arranged so as not to be adjacent to each other so as to pass through in adjacent stages, and a plurality of long axis variable members which are operated by the respective long operation shafts 3 are provided behind the common plate surface 2. A resistor main body and a plurality of short axis variable resistor main bodies that are operated by the respective short operation shafts 6 are provided, and the length of each short operation shaft 6 does not interfere with the operation of each long operation shaft 3. Are selected shorter than the long operating shafts 3, respectively, and the short operating shafts 6 are provided with the short operating shafts 6 at the tips thereof. Tool locking portions 7 for turning the operation shaft 6 are provided respectively, an auxiliary arm 1a for preventing the vertical casing 1 from tilting is provided on the back side of the vertical casing 1, and a lower surface of the auxiliary arm 1a is provided. Is provided with a protrusion 1b for inserting into the circuit board, and a hook piece 5 for engaging with the circuit board is provided at a lower portion on the front surface side of the vertically oriented casing 1 so as to project from the lower portion of the vertically oriented casing 1. And the hook piece 5 and the protrusion 1b
The terminal 4 of each of the variable resistor bodies is provided between and.

[Advantage of the Invention] In this way, the plurality of long operation shafts 3 and the short operation shafts 6 are vertically arranged on the common plate surface 2 of the vertically oriented casing 1 in a plurality of stages, and the long operation shafts 3 are adjacent to each other in each stage. If the long operation shafts 3 are arranged so as not to be adjacent to each other in such a manner that the long operation shafts 3 do not become adjacent to each other, it is possible to prevent an increase in the lateral dimension and an increase in the vertical dimension of the vertically oriented casing 1. Even in the case of a multi-axis variable resistor equipped with a long-axis variable resistor body and a plurality of short-axis variable resistor bodies, it is possible to reduce the mounting area on the circuit board on which it is mounted, and It can be as low as possible.

Even if the long operation shafts 3 and the short operation shafts 6 are densely arranged in this way, the lengths of the respective short operation shafts 6 are selected shorter than the respective long operation shafts 3 so as not to interfere with the operation of the respective long operation shafts 3. Therefore, the operability of each long operation shaft 3 does not deteriorate.

Further, since the short operation shaft 6 having a shorter length than the long operation shaft 3 is provided with a tool locking portion 7 for rotating the short operation shaft 6, the tip of a rotary tool such as a screwdriver is provided. By engaging with the tool engaging portion 7, it is possible to easily perform the rotating operation even if the long operating shaft 3 is present adjacently.

Even if the long operation shafts 3 and the short operation shafts 6 are arranged in a plurality of stages vertically, the auxiliary arm 1a is provided on the back side of the vertically oriented casing 1.
Is provided, it is possible to prevent the vertical casing 1 from tilting when the long operation shaft 3 or the short operation shaft 6 is operated.

Further, since the hook piece 5 for engaging with the circuit board is provided at the lower portion of the front surface of the vertically oriented casing 1, the vertically oriented casing 1 is lifted when the long operation shaft 3 or the short operation shaft 6 is operated. Can be prevented.

Further, since each terminal 4 is provided between the hook piece 5 and the protrusion 1b, when the vertically oriented casing 1 is lifted,
The application of force to the soldered portion of each terminal 4 can be protected by the hook piece 5 and the protrusion 1b.

Embodiments Embodiments of the present invention will be described in detail below with reference to the drawings.

1 to 3 show an embodiment of a multi-axis variable resistor according to the present invention. In this multi-axis variable resistor, a plurality of long operating shafts 3 and a plurality of short operating shafts 6 are vertically arranged on a common plate surface 2 of a vertically oriented casing 1, and the long operating shafts 3 are adjacent to each other at each stage. The long operation shafts 3 are arranged so as not to be adjacent to each other so as not to be adjacent to each other. That is, in this embodiment, the long operation shaft 3 and the short operation shaft 6 are alternately arranged in a zigzag pattern in adjacent stages.

On the back side of the common plate surface 2, there are provided a plurality of long axis variable resistor bodies which are operated by the respective long operation shafts 3, and a plurality of short axis variable resistor bodies which are operated by the respective short operation shafts 6. Is provided.

The length of each short operation shaft 6 is selected to be shorter than that of each long operation shaft 3 so as not to interfere with the operation of each long operation shaft 3. At the tip of each short operation shaft 6, there is provided a tool locking portion 7 formed of a driver groove for turning the short operation shaft 6.

Auxiliary arms 1a for preventing the vertical casing 1 from tilting are provided on the left and right sides of the back of the vertical casing 1, respectively. Protrusions 1b for inserting into the circuit board are provided on the lower surfaces of the auxiliary arms 1a, respectively.

Hook pieces 5 for engaging with a circuit board (not shown), which is a support, are provided at the left and right sides and the center of the lower portion of the front side of the vertically oriented casing 1, respectively.

At the lower part of the vertically oriented casing 1, between the hook piece 5 and the protrusion 1b, the terminals 4 of each variable resistor body are provided so as to project.

In such a multi-axis variable resistor, a plurality of long operation shafts 3 and a plurality of short operation shafts 6 are vertically arranged on a common plate surface 2 of a vertically oriented casing 1 in a plurality of stages, and the long operation shafts 3 are mutually arranged in each stage. Since the long operation shafts 3 are arranged so as not to be adjacent to each other so as not to be adjacent to each other in the adjacent steps, an increase in the lateral dimension and an increase in the longitudinal dimension of the vertically oriented casing 1 are achieved. Even if it is a multi-axis variable resistor equipped with multiple long-axis variable resistor bodies and multiple short-axis variable resistor bodies, it is necessary to reduce the mounting area on the circuit board on which it is mounted. The height can be reduced as much as possible.

Further, even if the long operation shafts 3 and the short operation shafts 6 are densely packed, the lengths of the respective short operation shafts 6 are selected to be shorter than the respective long operation shafts 3 so as not to interfere with the operation of the respective long operation shafts 3. Because
The operability of each long operation shaft 3 does not deteriorate.

Further, since the short operation shaft 6 having a shorter length than the long operation shaft 3 is provided with a tool locking portion 7 for rotating the short operation shaft 6, the tip of a rotary tool such as a screwdriver is provided. By engaging with the tool engaging portion 7, it is possible to easily perform the rotating operation even if the long operating shaft 3 is present adjacently.

Even if the long operation shafts 3 and the short operation shafts 6 are arranged in a plurality of stages vertically, the auxiliary arm 1a is provided on the back side of the vertically oriented casing 1.
Is provided and supports the vertically oriented casing 1 by hitting a circuit board (not shown), the long operating shaft 3 or the short operating shaft 6 is provided.
The vertical casing 1 is prevented from inclining during the operation of.

Further, since the hook piece 5 for engaging with the circuit board is provided on the lower portion of the front surface of the vertically oriented casing 1, the vertically oriented casing 1 is operated when the uppermost long operating shaft 3 or the short operating shaft 6 is operated. It is possible to prevent the vertical casing 1 from being lifted up even if the rotational moment due to the pressing force pushed to the rear becomes large.

Therefore, it is possible to prevent a contact failure accident of the terminal 4. That is, even if the terminal 4 is soldered to the circuit board that is the support, the terminal 4 is soldered each time the long operating shaft 3 or the short operating shaft 6 is operated.
If a force is repeatedly applied to pull out the solder, the solder may peel off and a contact failure accident may occur.
By locking the to the circuit board, it is possible to prevent the contact failure accident. Further, even when each terminal 4 is inserted into the connector, a force in the direction of pulling out the terminal 4 may be applied to cause a contact failure accident due to the floating of the terminal 4. By locking, the occurrence of the contact failure accident can be prevented.

Further, when each terminal 4 is provided between the hook piece 5 and the protrusion 1b, a force is applied to the soldering portion of each terminal 4 when the vertically oriented casing 1 is lifted. Can be protected.

The short operating shaft 6 can be projected from the plate surface 2 within a range that does not interfere with the operation of the long operating shaft 3.

[Advantages of the Invention] As described above, according to the multi-axis variable resistor of the present invention, the following excellent effects can be obtained.

(A) A plurality of long operation shafts and short operation shafts are vertically arranged in a plurality of stages on a common plate surface of a vertically oriented casing so that the long operation shafts are not adjacent to each other in each stage, and are long in adjacent stages. Since the operation shafts are arranged so as not to be adjacent to each other so as to penetrate each other, it is possible to prevent an increase in the lateral dimension and an increase in the longitudinal dimension of the vertically oriented casing, and to provide a plurality of long axis variable resistor bodies. Even for a multi-axis variable resistor equipped with a plurality of short axis variable resistor bodies, it is possible to reduce the mounting area on the circuit board on which it is mounted and to reduce the height as much as possible. it can.

(B) Even if the long operation axis and the short operation axis are closely arranged, the length of each short operation axis is selected shorter than each long operation axis so as not to interfere with the operation of each long operation axis. Operability of long operating axis does not deteriorate.

(C) Since the short operation shaft having a shorter length than the long operation shaft is provided with a tool engaging portion for rotating the short operation shaft at the tip thereof, the tip of a rotary tool such as a screwdriver can be attached to the tool engagement section. By engaging with the stopper, the rotation operation can be easily performed even if the long operation shaft is adjacently present.

(D) Even if the long operation shafts and the short operation shafts are arranged in a plurality of stages in the vertical direction, the auxiliary arm is provided on the back side of the vertically oriented casing, so that when the long operation shaft or the short operation shaft is operated, It is possible to prevent the vertical casing from tilting.

(E) Since a hook piece for engaging with the circuit board is provided on the lower portion of the front surface of the vertically oriented casing, the vertically oriented casing is prevented from being lifted when the long operation shaft or the short operation shaft is operated. be able to.

(F) Since each terminal is provided between the hook piece and the protrusion, it is necessary to protect the force applied to the soldering portion of each terminal with the hook piece and the protrusion when the casing is lifted up vertically. You can

[Brief description of drawings]

1 and 2 are a front view and a side view of an embodiment of a multi-axis variable resistor according to the present invention, and FIG. 3 is a partial sectional view taken along line XX of FIG. 1 ... Casing, 1a ... Auxiliary arm, 1b ... Protrusion, 2 ...
Plate surface, 3 ... Long operating shaft, 4 ... Terminal, 5 ... Hook piece, 6 ... Short operating shaft, 7 ... Tool locking portion (driver groove).

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tetsuji Yokoe 3158 Shimookubo, Osawano-cho, Kamishinagawa-gun, Toyama Prefecture Hokuriku Electric Industry Co., Ltd. (56) References: 56-155532 (JP, U) -61504 (JP, U) Actual opening Sho 53-111335 (JP, U) Actual opening Sho 55-86301 (JP, U)

Claims (1)

[Scope of utility model registration request] 1. A plurality of long operating shafts and short operating shafts are vertically arranged in a plurality of stages on a common plate surface of a vertically oriented casing so that the long operating shafts are not adjacent to each other in each stage. In the step, the long operation shafts are arranged so as not to be adjacent to each other so as to pass through, and on the back of the common plate surface, there are provided a plurality of long axis variable resistor bodies to be operated by the respective long operation shafts and A plurality of short axis variable resistor bodies that are operated by the short operation axes are provided, and the lengths of the short operation axes are respectively longer than the long operation axes so as not to interfere with the operation of the long operation axes. The short operating shaft is provided with a tool locking portion for turning the short operating shaft at the tip of each of the short operating shafts, and an auxiliary arm for preventing the vertical casing from tilting on the back side of the vertical casing. Is provided, and is inserted into the circuit board on the lower surface of the auxiliary arm. And a hook piece for engaging with the circuit board is provided on the lower portion of the front surface of the vertically oriented casing, and the hook piece and the projection are provided at the lower portion of the vertically oriented casing. A multi-axis variable resistor, wherein terminals of each of the variable resistor bodies are provided so as to protrude therebetween.