JP2545551Y2 - Motor driven slide type variable resistor - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a motor-driven slide variable resistor capable of both motor drive and manual operation, and more particularly to a structure for mounting a motor variable resistor.

[0002]

2. Description of the Related Art FIG. 10 is a side sectional view of a conventional motor driven slide type variable resistor.
Is a lower frame that covers the lower open surface of the upper frame 1, and 3 is a motor. The motor 3 is fixed to the lower frame 2 by screws 4 in a vertical state. Reference numeral 5 denotes a resistor substrate, and reference numeral 5a denotes a terminal of a resistor (not shown).

[0003]

[Problems to be solved by the invention] However, the motor 3
Is vertically fixed to the lower surface of the lower frame 2,
Since the height dimension of the entire motor-driven slide type variable resistor becomes large and the motor 3 is screwed to the lower frame 2, the tightening torque of the screw 4 is controlled, and the screw is prevented from loosening (for example, an adhesive). ), And the workability is poor.

The purpose of the present invention is to solve the above-mentioned problems. An object of the present invention is to reduce the height of a motor-driven slide type variable resistor in comparison with a conventional one, and to reduce the height of the motor. It is intended to improve the workability at the time of attachment as compared with the related art.

[0005]

In order to achieve the above object, the present invention provides a mounting plate on which a motor can be mounted in a horizontal direction, a side plate formed by bending one end of the mounting plate, and
Having a first locking portion formed continuously at one end of the side plate;
The motor is provided at one end of the motor on the side plate of the motor mounting member having a top plate located above the mounting plate .
Place the motor on the mounting plate with the projections fitted,
The motor is attached to the motor with a claw provided on the mounting plate.
A second lock fixed to the member and engaged with the first lock portion
Section is provided on the frame provided on the variable resistor and
In both cases, the stop plate is formed by bending the frame body.
Holds the other end of the motor held by the motor mounting member
And the motor is connected to the motor via the motor mounting member.
It is fixed horizontally to the frame of the transformer.

[0006]

In the above means, the motor is mounted horizontally on a sheet metal motor mounting member without using screws when fixing the motor, and the protrusion at one end of the motor is fitted to the side plate, and the pawl is engaged.
The first piece is held on the motor mounting member with a piece and formed on the top plate.
The engaging portion and the second engaging portion provided on the frame body are engaged, and the motor
Is the configuration where the other end is held by the stopper plate of the motor frame
Therefore , the previously required management of screw tightening torque, screw loosening prevention means, etc. can be omitted, workability is improved, and the motor is fixed to the variable resistor frame in the horizontal direction. The overall height of the motor-driven slide type variable resistor can be made smaller than before.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments of the present invention will be described below with reference to the accompanying drawings.

1 to 9 are explanatory views of an embodiment of a motor-driven slide type variable resistor according to the present invention. FIG. 1 is a front view, FIG. 2 is a rear view, FIG. 3 is a side view, and FIG. FIG. 5 is a cross-sectional view showing a process of mounting the motor on the motor mounting member, and FIG. 6 is a cross-sectional view showing a state after the motor is mounted on the motor mounting member. FIG. 7 is an exploded perspective view showing a state before the motor is mounted on the variable resistor. FIG. 8 is an explanatory view showing a state before the motor is mounted on the variable resistor. FIG. 9 is a diagram showing the motor mounted on the variable resistor. It is explanatory drawing which shows a state after.

In the drawings, reference numeral 6 denotes a metal upper frame formed in a box shape, and 7 denotes a slider receiver made of an insulator movably housed in the upper frame 6, and the slider receiver is formed of a metal. A metal knob 8 is buried upright from the center of 7. Reference numeral 9 denotes a lower frame body that is swaged to the upper frame body 6 by mounting claws 6a hanging from below the upper frame body 6 so as to cover the open surface of the upper frame body 6, and 10 denotes a motor mounting member made of a metal plate. The mounting member 10 includes a mounting plate 12 on which the motor 11 can be mounted in a horizontal direction.
A side plate 13 formed by bending one end of the mounting plate 12
And before it is bent continuously at one end of the side plate 13.
An upper plate 14 located above the mounting plate 12 and a side plate 13
A pair of wing plates 15 bent from both sides of the wing plate 15 and a bottom plate 16 connecting the two wing plates 15 are formed. A curl portion 17 for guiding a belt described later is formed at the left end of the upper surface plate 14. A groove 18 is provided on the surface of the belt as guide means for a belt described later. A gear 23 is fixed to a rotating shaft 22 of the motor 11,
3 is provided with a circular hole 20, and the mounting plate 12 has a cut-and-raised piece 21 which is cut and raised inward. As shown in FIG. 5, the motor 11 is fixed to the motor mounting member 10 by first inserting a gear 23 into a circular hole 20 provided in the side plate 13, and FIG.
As shown in FIG. 3, the motor 11 is mounted on the mounting plate 12 against the elasticity of the cut-and-raised piece 21 with the bearing projection 24 on the front surface of the motor 11 fitted in the circular hole 20. Is carried out by holding the rear surface of the motor 11 with the claw pieces 25 provided at the other end of the motor 11.

Next, as shown in FIG. 7, the motor 11 fixed to the motor mounting member 10 is mounted on the variable resistor by a wider portion 26a and a narrower portion 26b than the lower frame 9 as shown in FIG.
And the stopper plate 27 of the motor 11 is bent to form a wide claw 26 (second locking portion). The narrow hole 28b into which the hole 28a and the narrow portion 26b fit.
When provided more it made the engagement hole 28 (first engagement portion), as shown in FIGS. 7 and 8, in a state of opposition claws 26 and the engagement hole 28, the wide portion wider hole 28a 26, the narrow portion 26b of the locking claw 26 is moved rightward along the narrow hole 28b until it is locked to the right end of the narrow hole 28b as shown in FIG. Stop plate 27 at rear
Is pressed to the right while the motor 11 is pushed in the direction of the lower frame 9, and the bearing projection 30 (projection) on the rear surface of the motor 11 is fitted into the circular hole 29 of the stop plate 27. Reference numeral 31 denotes a belt provided with teeth. The belt 31 is stretched between the gear 23 and a pulley 33 rotatably supported by the upper frame body 6 by being guided by the groove 18 of the curl portion 17. The teeth of the gear 31 and the teeth of the gear 23 mesh with each other, a part of the belt 31 is fixed to the upper surface of the slider receiver 7 with an adhesive 34, and the belt 31 and the slider receiver 7 move integrally. It is supposed to. In addition, 35 is the lower frame 9
The reference numeral 35a denotes a terminal of a resistor (not shown) formed on the substrate 35.

Next, the operation of the motor driven slide type variable resistor will be described. First, in the case of motor driving, the rotation shaft 22 and the gear 23 are rotated by the rotation of the motor 11 in FIG. 1, and the belt 31 is engaged with the teeth of the belt 31 in the groove 18 of the curl portion 17 by meshing the teeth of the gear 23 with the teeth of the belt 31. The guide member rotates while being guided, and accordingly, the slider receiver 7 fixed to a part of the belt 31 linearly moves. In the meantime, a slider (not shown) fixed to the slider receiver 7 slides on a resistor (not shown) provided on the resistor substrate 35 to adjust the resistance value.

Next, in the case of manual operation, when a force is applied in a linear direction to the slider receiver 7 by holding the knob 8, the slider receiver 7 moves linearly with the belt 31, and the resistance value is adjusted. Will be The motor 11 also rotates with the movement of the belt 31.

The motor-driven slide type variable resistor according to the present invention has the above-described configuration, and the motor 11 is attached to the variable resistor without using a conventional screw.
As shown in FIG. 8, the motor 11 is crimped to the motor mounting member 10 made of sheet metal, and as shown in FIGS. 8 and 9, the engaging hole 28 provided in the upper plate 14 of the motor mounting member 10 is After being inserted into the locking claw 26 provided on the body 9, the lower frame 9 is moved in the horizontal direction (to the right in FIG. 8), and the bearing projection 30 on the rear surface of the motor 11 is formed into a circular hole in the stopper plate 27. 29, and it is possible to omit the management of the tightening torque of the screw, the means for preventing the screw from loosening, and the like, which are conventionally required.
The number of work steps is reduced as compared with the conventional case, and workability is improved.
Further, since the motor 11 is fixed to the lower frame 9 of the variable resistor in the horizontal direction, the height dimension of the entire motor-driven slide type variable resistor can be reduced as compared with the related art.

When the motor 11 is fixed to the motor mounting member 10, the motor 11 is elastically held by the elastically raised and raised pieces 21 provided on the mounting plate 12, which helps to prevent the motor 11 from rattling. . Conventionally, as shown in FIG. 10, the motor 3 is fixed to the lower frame 2 by screws 4 vertically. However, since the width of the motor 3 and the width of the lower frame 2 are substantially the same, resistance is reduced. The terminal 5 a hanging downward from the substrate 5 is bent and hung outside the motor 3 in order to avoid contact with the motor 3. Therefore, the terminal 5a protrudes outside the motor 3 and the width dimension of the motor-driven slide variable resistor becomes large. However, according to the present invention, as shown in FIG. Since the pair of wing plates 15 and the bottom plate 16 fit in the space in front of the motor 11,
The terminal 35 a hanging downward from the resistance board 35 is
5 along with the motor 1
1 can be accommodated in the space without being bent outside. Therefore, the width dimension of the motor-driven slide variable resistor can be reduced as compared with the related art.

[0015]

According to the present invention, since the motor is fixed in the horizontal direction with respect to the frame of the variable resistor, the height of the motor driven slide type variable resistor is smaller than that of the conventional one. Can be smaller. In addition, the motor mounting member made of sheet metal
Is mounted horizontally, and the protrusion at one end of the motor is fitted to the side plate.
Then, it was held on the motor mounting member with a claw piece and formed on the top plate.
The first locking portion is engaged with the second locking portion provided on the frame, and the
The other end of the motor is held by the stopper plate of the motor frame.
As a result, it is possible to securely fix the motor without using screws.
The motor can be held in the frame of the variable resistor, and the conventionally required management of screw tightening torque, screw loosening prevention means, and the like can be omitted, and workability is improved.

[Brief description of the drawings]

FIG. 1 is a front view of a motor-driven slide type variable resistor according to the present invention.

FIG. 2 is a rear view of the motor-driven slide variable resistor according to the present invention;

FIG. 3 is a side view of the motor-driven slide variable resistor according to the present invention;

FIG. 4 is a plan view showing a coupling relationship between a belt and a slider receiver of the motor-driven slide variable resistor according to the present invention;

FIG. 5 shows a motor-driven slide type variable resistor according to the present invention;
It is sectional drawing which shows the process in the middle of attaching a motor to a motor attachment member.

FIG. 6 shows the motor-driven slide type variable resistor according to the present invention;
It is sectional drawing which shows the state which attached the motor to the motor attachment member.

FIG. 7 is an exploded perspective view showing a state before a motor is mounted on the variable resistor according to the present invention.

FIG. 8 is an explanatory view showing a state before a motor is mounted on the variable resistor according to the present invention.

FIG. 9 is an explanatory view showing a state after the motor is mounted on the variable resistor according to the present invention.

FIG. 10 is a side sectional view of a conventional motor driven slide type variable resistor.

[Explanation of symbols]

 Reference Signs List 9 lower frame 10 motor mounting member 11 motor 12 mounting plate 13 side plate 14 top plate 24 bearing protrusion 25 claw piece 26 locking claw 27 stop plate 28 engagement hole 30 bearing protrusion

Claims (1)

(57) [Scope of request for utility model registration] And 1. A possible place the motor in the horizontal direction mounting plate, and side plates formed by forming folding one end of the mounting plate, the
Having a first locking portion formed continuously at one end of the side plate;
The motor is provided at one end of the motor on the side plate of the motor mounting member having a top plate located above the mounting plate .
Place the motor on the mounting plate with the projections fitted,
The motor is attached to the motor with a claw provided on the mounting plate.
A second lock fixed to the member and engaged with the first lock portion
Section is provided on the frame provided on the variable resistor and
In both cases, the stop plate is formed by bending the frame body.
Holds the other end of the motor held by the motor mounting member
And the motor is connected to the motor via the motor mounting member.
A motor-driven slide type variable resistor fixed to a frame of a variable resistor in a horizontal direction .