KR950010598Y1 - Illuminated rotation type electric parts - Google Patents

Abstract

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Description

Illuminated Rotary Electrical Parts

1 to 9 relate to one embodiment of the present invention,

1 is a cross-sectional view of a motor-driven variable resistor.

2 is a perspective view thereof.

3 is an exploded perspective view of a variable resistor.

4 is an exploded perspective view of the reduction gear mechanism and the clutch mechanism.

5 is a plan view of the reduction gear mechanism.

6 is a plan view of the clutch mechanism.

FIG. 7 is a cross sectional view of FIG.

8 is a cross-sectional view of FIG. 6 (6-Ⅷ).

9 is an explanatory diagram showing a manufacturing process of the leaf spring provided in the clutch mechanism.

* Explanation of symbols for main parts of the drawings

1: variable resistor 6: number of shafts

7: rotating operation shaft 8: driving body

9 resistor plate 10 substrate support

12: slider support 13: LED (light emitting device)

14 holder 15 through hole

16 flange portion 17 protrusion

18: connecting portion 19: slit

20: locking protrusion (locking portion) 21: pin

22: hole 23: stopper projection

24: base portion 25: notched portion

26: standing part 27: space

28: lead terminal 29: center hole

30: engaging hole 31: slider

The present invention is provided with a light-emitting device such as an LED, and relates to a light-type rotary operation type electrical component so that the operation position and the like of the handle can be clearly identified according to the light from the light-emitting device.

As an example of this type of illuminated rotary operation type electric component, the variable resistor described in Japanese Patent Application Laid-Open No. 52-6028 has been conventionally opened.

The variable resistor described in the above publication supports the hollow shaft to the number of shafts fixed to the open end of the box, secures the slider bearing to one end of the hollow shaft, and secures the handle to the other end to further secure the box. A light emitting element (light source) is disposed at the inner bottom so as to face one end of the hollow shaft. In use, when the slider support is rotated in accordance with the rotation of the hollow shaft, the slider mounted on the slider support slides on a resistor plate opposite thereto to change the resistance value, while the light generated from the light emitting element is transferred to the handle through the hollow shaft. The display unit is reached so that the display unit is dimmed.

By the way, in the above-mentioned conventional lighted rotationally operated electrical component, one end of the hollow shaft must pass through the slider support to integrate the both, so that the hollow shaft is required to have a certain length and thickness. There is a problem that the transmission path is long and the light control unit is dark, or the components including the slider support, the hollow shaft, and the like are enlarged, which hinders the miniaturization of the electric parts.

Then, if the shape required for the electrical component changes, i.e., the number of resistors or the number of disassembly changes, for example, a slider support of a different type must be fixed to the hollow shaft, thereby producing a wide variety of products. There was a problem that it was not suitable.

The present invention has been made in view of the above-described circumstances of the prior art, and its object is to provide a dimming rotary operation type electric component that is suitable for miniaturization and production of various kinds and which can make the dimming part bright.

In order to achieve the above object, the present invention provides a rotating operation shaft which is supported by a rotational free passage and has a through hole at the same time as the bearing, and a slider support which is rotated according to the rotation operation axis, and a slider mounted to the slider support. A lighted rotationally operated electric component having a substrate and a light emitting element, wherein the light generated by the light emitting element is led out to the outside through the through hole, wherein the driving unit has a locking portion at one end of the rotary operation shaft. The light emitting device is disposed in a space formed between the rotary operation shaft and the driving body.

According to the above means, since the light emitting element can be arranged near the rotary operation axis with respect to the slider base, the light control unit can be brightened and downsized, and the front end including the axis number, the rotary operation axis and the light emitting element can be provided. The side can be unitized, and this unit is connected to the rear end side including the slider support, the substrate, and the like, which is suitable for production of many kinds of shapes in which the shape of the slider support or the substrate is changed.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.

1 to 9 are related to an embodiment of the present invention, Figure 1 is a cross-sectional view of the motor-driven variable resistor, Figure 2 is a perspective view thereof, Figure 3 is an exploded perspective view of the variable resistor, Figure 4 is a deceleration gear mechanism and Exploded perspective view of the clutch mechanism, FIG. 5 is a plan view of the reduction gear mechanism, FIG. 6 is a plan view of the clutch mechanism, FIG. 7 is a sectional view taken along line 6 of FIG. Line sectional drawing and FIG. 9 are explanatory drawing which shows the manufacturing process of the leaf spring with which the clutch mechanism is equipped.

In these figures, 1 denotes a rotationally operated variable resistor, 2 denotes a deceleration gear mechanism, 3 denotes a clutch mechanism, and the motor drive variable resistor according to the present embodiment includes these variable resistors (1). ), The reduction gear mechanism (2), the clutch mechanism (3) and the motor (4).

As shown in FIG. 1 and FIG. 3, the variable resistor 1 is housed. A metal bearing 6 having a portion 5, a rotary operating shaft 7 freely supported by the shaft 6, and a driving agent made of a metal casting fixed to one end of the rotary operating shaft 7. (8), a substrate support (10) made of synthetic resin formed on the outer surface of the resistor plate (9), a slider support (12) made of synthetic resin disposed in the recess (11) at the rear end of the substrate support (10); And a light emitting element (LED 13) and a holder (14) for supporting the LED (13), and the rear end side of the substrate support (10) and the shaft (6) by using pins and holes provided in both It is positioned.

The rotary operation shaft 7 has a through hole 15 at its center, and one end (rear end) of the through hole 15 is formed to have a slightly large diameter. A disk-shaped flange portion 16 is integrally formed at one end of the rotary operation shaft 7, and a part of the outer periphery of the flange 16 extends in parallel with the axis of the rotary operation shaft 7. 17, the bow-shaped connecting portion 18 is integrally formed. On the other hand, at one end (rear end) of the driving body 8, the locking protrusion 20 having the slit 19 is integrally formed, and an enemy fixing means between the driving body 8 and the connecting portion 18, namely, In the present embodiment, the pin 21 protruding from the connecting portion 18 is integrated by pressing the pin 21 into the hole 22 formed in the driving body 8.

The flange 8 of the driving body 8 and the rotary operation 7 which are integrated in this way is housed above. The rotational range of the rotary operation shaft 7 is regulated by contacting the protrusion 17 with the stopper projection 23 disposed in the bottom portion 5 and formed in the bottom of the housing portion 5.

The holder 14 has a thick base portion 24 at its lower end, and the base portion 24 is located in the notched portion 25 formed in the vicinity of the stopper protrusion 23, and the bearing 6 ) And the substrate support 10. In addition, the standing portion 26 having a thin thickness extending upward from the base portion 24 reaches the space 27 formed between the flange portion 16 and the driving body 8 by the protruding portion 17. It does not interfere with the rotation of the rotary operating shaft 7. The LED 13 supported by the holder 14 is located at the large diameter portion of the through hole 15, and the lead terminal 28 of the LED 13 penetrates out of the holder 14 to the outside. It is.

The locking protrusion 20 of the driving body 8 penetrates through the center hole 29 drilled in the substrate support 10, and the locking protrusion 20 is a locking hole drilled in the center of the slider support 12. It is press-fitted into 30. A slider 31 is attached to the entire surface of the slider support 12, and the slider 31 is in sliding contact with a resistor or a current collector of the resistor plate 9.

As shown in FIG. 1, FIG. 4, and FIG. 5, at the rear end of the said substrate support body 10, the storage box 32 made of synthetic resin which incorporates the said reduction gear mechanism 2 and the clutch mechanism 3 is built. ) Is bonded, and the above-mentioned bearing 6 and the substrate support 10 and the set of the storage box 32 are integrated so as not to be separated by the frame 33 screwed to the motor 4. It is.

The rotary shaft 34 of the motor 4 is inside the storage box 32, the cylindrical first worm 35 is press-fit, fixed to the rotary shaft 34. The first worm 35 is meshed with the cylindrical first wheel 36 and the first wheel 36 extends in a direction orthogonal to the axis of the rotary shaft 34. It is integrally formed in the center. At one end of the rotating body 37, a cylindrical second worm 38 is integrally formed, and the second worm 38 is meshed with the second wheel 39 of the crown gear type by a tooth. The deceleration gear mechanism 2 is constituted by these first worms 35, the first wheels 36, the second worms 38, and the second wheels 39.

In addition, both ends of the rotating body 37 are rotatably supported on the side wall of the storage box 32 and the elastic side plate 40 opposite thereto, and the elastic side plate 40 is rotated. By applying an elastic force to the lower side inclined (37) in the axial direction and the second wheel 39 direction, between the first shock 35 and the first wheel 36 and between the second worm 38 and It is designed to absorb the impact due to the backlash that occurs between the second wheels 39, respectively.

The center of the second wheel 39 is supported by a rotational free passage on the support shaft 41, and the tip of the support shaft 41 is inserted into the slit 19 of the drive body 8. As is clear from FIGS. 1 and 5, the axis of the rotational shaft 34 and the axis of the support shaft 41 are approximately in line, i.e., the rotational shaft 34 and the variable resistor 1 of the motor 4. The rotary operation shaft 7 of is arranged on the same line.

As shown in FIG. 6 to FIG. 8, in the vicinity of the outer circumference of the second wheel 39, an annular shape is formed. The groove 42 is formed, An annular clutch plate 43 is fitted into the groove 42 by a rotational free passage. The clutch plate 43 is provided with a plurality of engaging projections 44 having equal intervals in the circumferential direction. The leaf spring 45 has a plurality of cross bars 47 extending radially, and the holes 46 each have a hole at the distal end of these rods 47. In the center of the leaf spring 45, a disk-shaped support 48 is formed on the outer surface, and the support shaft 41 is pressed into the fitting hole 49 in the center of the support 48, and at the same time, the plate The pair of hook pieces 50 formed in the center of the spring 45 are filtered by the main surface of the support shaft 41, and the set of the support shaft 41, the leaf spring 45, and the support body 48 is integrated. And the clutch mechanism 3 is comprised by the four members of these 2nd wheel 39, the support shaft 41, the leaf spring 45 which has the support body 48, and the clutch plate 43. As shown in FIG.

Referring to FIG. 9A, the process of externally shaping the support body 48 on the leaf spring 45 will be described. First, as shown in FIG. 9A, the hoop-like elastic plate is pulled out by a press into a predetermined shape. At this time, two places in total of the part used as the crosspiece 47 and the part used as the both hook pieces 50 are connected to the hoop material. Next, the hoop material subjected to the blank processing in this way is sent to a molding die (not shown), and the molten charcoal is filled into the cavity of the molding mold to form the support 48 as shown in FIG. 9B. Subsequently, the base portion of each crosspiece 47 and the portion of the hook piece 50 are bent, and the portion shown by the two-dot dotted line in Fig. 9B is cut again to show the support (as shown in Fig. 9C). A leaf spring 45 having 48 can be obtained.

In the case of combining the clutch mechanism 3 configured as described above, first of the second wheel 39 While inserting the clutch plate 43 into the groove 42, the support shaft 41 is inserted into the rear end of the second wheel 39, and then the support 48 is fitted to the front end of the support shaft 41. The hole 49 is press-fitted to fit each hole 46 of the leaf spring 45 into the engaging projection 44 of the clutch plate 43. At this time, since the length between each hole 46 is set to an integral multiple of the length between each locking projections 44 (in this embodiment, twice), the leaf spring is selected by selecting a plurality of locking projections 44 appropriately. The 45 can be easily connected to the clutch plate 43. Moreover, the support body 48 is press-fitted to the support shaft 41, and both the hook pieces 50 can be connected to the support shaft 41 easily. In addition, since the support body 48 is press-fitted to the support shaft 41 and both hook pieces 50 are automatically caught on the main surface of the support shaft 51, it is possible to reliably prevent the support member 48 from falling off from the support shaft 41. There is a number. When the clutch mechanism 3 is assembled in this way, the clutch plate 43 is press-contacted with the second wheel 39 by the elastic force in each of the crosspieces 47 bent in the leaf spring 45. Force is applied in the direction of In this case, since the span of each crosspiece 47 is set sufficiently long, it is possible to impart a necessary sufficient friction force between the second wheel 39 and the clutch plate 43, and each crossbar. Since the 47 is formed symmetrically, the elastic force can be imparted to the clutch plate 43 at the leaf spring 45 with good balance.

Next, the operation of the motor-driven variable resistor configured as described above will be described.

First, the case where the variable resistor 1 is operated in accordance with the driving force of the motor 4 will be described. In this case, the rotational force of the motor 4 is the first worm 35 fixed to the rotary shaft 34, the first wheel 36 and the first wheel 36 meshed with the first worm 35. It is transmitted to the second wheel 39 which meshes with the first worm 38 via the second worm 38 which rotates integrally with the first worm 38, and the speed of the rotating shaft 34 is decelerated therebetween. . As described above, when the second wheel 39 rotates at a low speed, the clutch plate 43 fitted into the groove 42 of the second wheel 39 rotates integrally with the second wheel 39 according to the friction force between the two wheels 39. Since the leaf spring 45 connected to the clutch plate 43 and the support shaft 41 fixed to the support member 48 of the leaf spring 45 also rotate integrally with the second wheel 39, the support shaft The drive body 8 connected to 41 also rotates in association with the second wheel 39. That is, in this case, the clutch mechanism 3 is in a connected state, and the deceleration value of the rotational force of the motor 4 is transmitted to the drive body 8 of the variable resistor 1 via the mechanism 2 and the clutch mechanism 3.

When the drive body 8 rotates according to the driving force of the motor 4 in this way, the slider support 12 press-fitted to the locking protrusion 20 of the drive body 8 rotates with respect to the resistor plate 9, and the slider The resistance value is adjusted in response to a change in the relative position between the slider 31 of the support 12 and the resistor of the resistor plate 9. In addition, when the drive body 9 rotates, the rotary operation shaft 7 also rotates in association with it. However, the rotary operation shaft 7 rotates only within a range in which the protrusion 17 is in contact with both ends of the stopper protrusion 23. In this range, the LED 13 and the holder 14 are located in the space 27 formed by the driving body 8 and the flange portion, and do not collide with the protruding portion 17. Therefore, when power is supplied to the LED 13 through the lead terminal 28, and the LED 13 emits light, the light passes through the through hole 15 of the rotary operation shaft 7 and reaches outside. For example, the display portion of a knob (not shown) mounted on the tip of the rotary operation shaft 7 can be dimmed.

On the other hand, when the motor 4 is stopped and the rotary operation shaft 7 is manually operated, the rotational force of the rotary operation shaft 7 is transmitted to the slider support 12 through the drive body 8, and the slider support. The resistance value is adjusted in accordance with the rotation of (12). When the drive body 8 rotates, the rotational force is transmitted to the clutch plate 43 through the support shaft 41, the retaining body 48, and the leaf spring 45, but the clutch plate 43 and the second wheel. It slips between the 39 and is not transmitted to the second wheel 39, and the clutch mechanism 3 is in a shut-off state. In addition, when the LED 13 emits light during such driving operation, the light passes through the through hole 15 and reaches the outside of the rotary operation shaft 7, and the handle (not shown) as in the case of the motor driving described above. Can be dimmed.

Thus, in the said embodiment, the space 27 is formed between the flange part 16 of the rotation operation shaft 7, and the drive body 8 fixed to the rotation operation shaft 7, and this space 27 Since the LED 13 is disposed in the above, the LED 13 can be brought as close as possible to the light emitting end side of the through hole 15, thereby making it possible to brighten the light control part.

Moreover, since the LED 13 is arrange | positioned at the front end (rotational operation shaft 7 side) of the drive body 8, and the slider base 12 was connected to the rear end of the drive body 8, it is necessary, for example, Even when the shape or the number of years of the resistor to be changed and the shape of the substrate support 10 or the slider support 12 are changed accordingly, the components on the front end side of the substrate support 10, that is, the shaft 6 and the rotation, are rotated. The operation shaft 7, the driving body 8, the LED 13, and the holder 14 can be shared as one unit, and are suitable for many kinds of production.

In the above embodiment, the drive body 8 is made of a metal casting, and the slider support 12 is pressed into the locking projection 20 of the drive body 8, but the drive body 8 is described. It is made of synthetic resin molded integrally with the slider support, and the slider 31 is attached to the projection (locking portion) provided on the drive body and the slider support by thermal welding, and the slider 31 is opposite to the above embodiment ( It is also possible to comprise so that a sliding contact with the resistor or the current collector of the resistor plate 9 arranged on the rotary operation shaft 7 side of the resistance meter and the current collector. In this case, the slider (6), the rotary operation shaft (7), the LED (13), the holder (14), the driver and the slider support are shared and attached to the substrate support (10) or the drive and slider support ( By changing the shape of 31, it is possible to cope with many productions, and to reduce the number of parts constituting the variable resistor 1 more.

In the above embodiment, as a means for fixing the driving body 8 to the same rotation operation shaft 7, the pin 21 protruding from the connecting portion 18 is formed in the hole 22 which is drilled in the driving body 8. Although the case of press-fitting has been described, it is also possible to employ other fixing means such as screw tightening, snapping or bonding, or there is a space 27 into which the LED 13 and the holder 14 can be inserted together. It is also possible to integrally form the driving body 8 on the rotary operation shaft 7.

In addition, it is not said that this invention is applicable to rotary type variable resistors, rotary switches, etc. other than the motor drive type variable resistor demonstrated by the said Example.

As described above, according to the present invention, it is possible to brighten the light control part by reducing the transmission loss of light, and at the same time, to make a common part of the components, and to be suitable for many kinds of production, and further, such as a rotary operation shaft or a slider support. Various effects can be achieved, such as miniaturization of components.

Claims (1)

(Single correction) an axis number, a rotating operation shaft which is freely supported by the axis number and has a through hole, a slider support driven to rotate according to the rotation operation axis, a substrate in contact with the slider attached to the slider support, In an illuminated rotary control electric component having a light emitting element such that light generated by the light emitting element can be led to the outside through the through hole, the driving body having a locking portion at one end of the rotating operation shaft is provided. And a light emitting element arranged in a space formed between the rotary operation shaft and the driving body.