JPH052023U - Vehicle instrument - Google Patents

Abstract

(57) [Summary] [Object] To provide a vehicle instrument which has a simple structure and is easy to assemble and which can supply an electric current to a light source provided on a pointer. [Structure] A pointer shaft 15 rotated by the internal unit 14, a pointer 25 fixed to the pointer shaft 15, an LED 26 provided at the center of rotation of the pointer 25 for emitting the pointer 25, and fixed to the pointer shaft 15. It is composed of a light dry battery 35 that receives light to generate power and supplies current to the LED 26, and a light bulb 38 that is fixed to the inner unit 14 side and irradiates the light dry battery 35.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a vehicle instrument, and more particularly to a vehicle instrument that receives light from a pointer and causes the pointer to emit light.

[0002]

[Prior Art]

 As shown in FIG. 5, an automobile instrument panel is usually provided with a speedometer 1, a tachometer 2, a fuel gauge 3, a thermometer 4, and the like. Some of these instruments are provided with a light source such as an LED at the center of rotation of the pointer so that the pointer emits light. This type of instrument has conventionally been constructed as shown in FIG.

In FIG. 6, an inner unit 14 is fixed to a dial 11 via brackets 12 and 13, and a pointer shaft 15 is concentrically connected to an output shaft of the inner unit 14. An insulating seat 16 is concentrically fixed to the lower part of the pointer shaft 15 and a substrate 17 is concentrically fixed to the upper part thereof, and the first and second mustaches 18 and 2 are respectively provided on the lower and upper surfaces of the insulator 16 respectively. 19 is attached. One end of the first mustache ball 18 is fixed to the insulating seat 16 via the first beard ball 20, and the other end is connected to the first terminal 21 provided on the inner surface of the bracket 13. .. Similarly, one end of the second mustache ball 19 is fixed to the insulating seat 16 via the second mustache ball 22, and the other end is fixed to the second terminal 23 provided on the inner surface of the bracket 13. ing. The first and second terminals 21 and 23 are connected to a power source (not shown).

On the other hand, one end of a pointer 25 is fixed to the upper end of the pointer shaft 15 via a pointer hull 24, and an LED 26 as a light source is provided at the center of rotation of the pointer 25. The LE D26 is mounted on the substrate 17, and both electrodes of the LED 26 are connected to the first and second beard balls 20 and 22 through wirings not shown.

The LED 26 is covered with a pointer cap 27 provided on the upper surface of the center of rotation of the pointer 25. The voltage applied between the terminals 21 and 23 causes a current to flow through the LED 26 through the mustache movements 18 and 19 to emit light, and the pointer 25 is illuminated. Reference numeral 28 is a coil spring whose one end is fixed to the pointer shaft 15, and reference numeral 29 is a spring tray which supports the other end of the coil spring 28.

According to the above configuration, since the LED 26 is provided at the center of rotation of the pointer 25, the pointer 25 formed of the light guide member can be directly and brightly illuminated.

[0007]

[Problems to be solved by the device]

 However, according to the conventional vehicular instrument configured as described above, in order to supply the current to the LED 26, the fixed-side terminals 21 and 23 and the rotating-side insulating seat 16 are respectively provided with the whiskers. Since they are connected by 19, there is a problem that the structure is complicated and the assemblability is poor.

Therefore, an object of the present invention is to solve the above-mentioned problems, and to provide a vehicle instrument which has a simple structure and is easy to assemble and which can supply an electric current to a light source provided on a pointer. To provide.

[0009]

[Means for Solving the Problems]

 In order to achieve the above-mentioned object, the present invention provides a pointer shaft rotated by an internal machine, a pointer fixed to the pointer shaft, a light source provided on the pointer for emitting the pointer, and the pointer shaft described above. An instrument for a vehicle is configured to include a power generation unit that is fixed to the interior of the vehicle to generate light and generate a current to the light source, and a light emission unit that is fixed to the inner unit side and illuminates the power generation unit. ..

[0010]

[Action]

 According to the vehicle instrument having the above structure, by irradiating the power generation means provided on the pointer side with the light emitting means, the current is supplied from the power generation means to the light source, and the light source emits light to illuminate the finger. Therefore, there is no need to perform electrical wiring from the fixed side to the rotating side, and the structure can be simplified and the assemblability can be improved.

[0011]

【Example】

 An embodiment of the vehicle instrument of the present invention will be described below with reference to the drawings.

1 to 4 show an embodiment of the present invention. In these figures, portions corresponding to those of the conventional example shown in FIG. 6 are designated by the same reference numerals, and description thereof will be omitted as appropriate.

A fixture 31 for the LED 26 is fixed to the upper end of the pointer shaft 15 via a boss portion 31a. The fixture 31 is composed of an insulating member in which a disc portion 31b and an LED storage portion 31c are integrally formed, and an LED 26 is mounted on the LED storage portion 31c. Both electrodes of the LED 26 are connected to a pair of terminals 32 provided in the LED housing 31c, and one end of a tongue piece 33 formed of a conductor is connected to each of the terminals 32. A chip resistor 34 is inserted in one of the pair of tongue pieces 33, and both of the tongue pieces 33 extend along the side surface of the LED housing portion 31 and the upper surface of the disc portion 31b. The other ends of the tongue pieces 33 are bent along the lower surface of the disc portion 31b.

On the other hand, on the lower surface of the disc portion 31b of the fixture 31, a disc-shaped photoelectric dry battery 35 as a power generation means is attached, and a pair of hook portions integrally formed on the pointer cap 27. The pointer 25, the disk portion 31b, and the light dry battery 35 are integrally fixed by 27a. That is, the hook portion 27a projects through the pair of through holes formed in the pointer hull 24, the disc portion 31b, and the photocell 35 to the lower surface of the photocell 35, and the lower end of the hook portion 27a is located on the bottom surface of the photocell 35. It is welded. Further, a part of the circumference of the photo-dry cell 35 is cut out, and an electrode 36 is provided at each of the cut ends. Then, the electrode 36 and the lower end of the tongue piece 33 are pressure-bonded to each other to establish electrical continuity.

A light bulb 38, which is a pair of light emitting means, is provided on the bottom surface 37 of the instrument panel, and a pair of light guide plates 39 is attached to the lower surface of the dial 11. One end of the light guide plate 39 faces the light bulb 38, and the reflection surface of the other end faces the photocell 35. Then, the light emitted from the light bulb 38 passes through the inside of the light guide plate 39, is reflected by the reflection surface and is incident on the light dry battery 35, and the light dry battery 35 is caused to generate power.

To further explain with reference to FIG. 1, when the light emitted from the light bulb 38 enters the light dry battery 35 through the light guide plate 39, the light dry battery 35 generates power, and the current is generated by the electrode 36, the tongue 33, and the like. It flows to the LED 26 through the terminal 32 and lights up.

According to this embodiment, since it is not necessary to electrically supply the LED 26 attached to the rotating pointer 25 from the fixed side, the structure is simplified and the assembling workability is improved. Further, unlike the conventional example, since there is no electrical connection by the beards 18 and 19, etc., the characteristics of the internal unit 14 are less affected.

In the above embodiment, the light bulb 38 is used as the light emitting member, and the light dry battery 35 is irradiated through the light guide plate 39. However, the light guide plate 39 is omitted and a ring-shaped light source is used as the light dry battery 35. It may be attached to the dial 11 so as to face it, and the light dry battery 35 may be directly irradiated by this light source.

[0019]

[Effect of the device]

 As described above, according to the present invention, since it is not necessary to electrically supply the light source attached to the pointer from the fixed side, the structure is simplified, the assembling workability is improved, and the internal unit characteristic is improved. The effect of can be reduced.

[Submission date] November 13, 1991

[Procedure Amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0014

[Correction method] Change

[Correction content]

On the other hand, on the lower surface of the disc portion 31b of the fixture 31, a disc-shaped photovoltaic cell 35 as a power generation means is attached, and a pair of hook portions integrally formed on the pointer cap 27. The pointer 25, the disk portion 31b, and the light dry battery 35 are integrally fixed by 27a. That is, the hook portion 27a protrudes to the lower surface of the light dry battery 35 through a pair of through holes formed in the pointer fixing portion 40 , the disc portion 31b, and the light dry battery 35, and the lower end thereof is the light dry battery 35. Is welded to the bottom surface of. Further, a part of the circumference of the light dry battery 35 is cut out, and an electrode 36 is provided at each of the cut ends. Then, the electrode 36 and the lower end of the tongue piece 33 are pressure-bonded to each other to establish electrical continuity.

[Brief description of drawings]

FIG. 1 is an explanatory longitudinal sectional view showing the configuration of an embodiment of a vehicle instrument of the present invention.

FIG. 2 is an exploded perspective view illustrating the essential parts of FIG.

FIG. 3 is a vertical cross-sectional explanatory view showing the light dry battery mounting structure of FIG.

FIG. 4 is a wiring explanatory diagram of FIG. 1.

FIG. 5 is an explanatory perspective view showing the configuration of an example of a vehicle instrument panel.

FIG. 6 is an explanatory longitudinal sectional view showing a configuration of a main part of an example of a conventional vehicle instrument.

[Explanation of symbols]

 14 Internal unit 15 Pointer shaft 25 Pointer 26 Light source (LED) 35 Power generation means (photo dry cell) 38 Light emitting means (light bulb)

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[Procedure amendment]

[Submission date] November 13, 1991

[Procedure Amendment 2]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 1

[Correction method] Change

[Correction content]

[Figure 1]

[Procedure 3]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 2

[Correction method] Change

[Correction content]

[Fig. 2]

[Procedure amendment 4]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 3

[Correction method] Change

[Correction content]

[Figure 3]

[Procedure Amendment 5]

[Document name to be corrected] Drawing

[Name of item to be corrected] Figure 6

[Correction method] Change

[Correction content]

[Figure 6]

Claims (1)

[Claims for utility model registration] [Claim 1] A pointer shaft rotated by an internal machine, a pointer fixed to the pointer shaft, a light source provided on the pointer for emitting the pointer, and the pointer shaft. An instrument for a vehicle, comprising: a power generating unit that is fixed and receives light to generate power to supply a current to the light source; and a light emitting unit that is fixed to the inner unit side and illuminates the power generating unit.