JP2002365098A - Pointer for measuring instrument device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pointer for a measuring instrument device, by which an indication part indicating a display on a dial is brightened without irregularities and which can restrain an optical restriction. SOLUTION: The pointer 12 for the measuring instrument device is provided with a base end 41 and the indication part 42. The output shaft of a movement is attached to the base end 41. The part 41 is provided with a light receiving part. The light receiving part reflects light from a bulb toward the tip of the indication part 42. The indication part 42 is extended toward the outer circumferential direction of the part 41 from the part 41. The indication part 42 is provided with an overlap 48 which is overlapped with a graduation for vehicle-speed display on the dial for vehicle-speed display. The pointer 12 is provided with a metal reflection layer 49 which is formed on the whole outer surface of the indication part 42 excluding a surface 48a facing the crew member of an automobile in the overlap 48.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an indicator for an instrument mounted on a moving body such as an automobile, and more particularly, to an indicator for an illuminated instrument.

[0002]

2. Description of the Related Art In order to display information measured by various measuring means to an occupant on a moving body such as a vehicle or a ship, for example, an instrument device disclosed in Japanese Patent Application Laid-Open No. 6-221879 or the like is mounted. Is done. The instrument device disclosed in Japanese Patent Application Laid-Open No. 6-221879 has a box-shaped instrument case, an instrument unit housed in the instrument case, a dial, a pointer, and a light source.

[0003] The meter unit is based on information (measured amount) from measuring means for measuring various conditions of the moving body.
It has a rotating output shaft. The dial is housed in an instrument case and is arranged closer to an occupant of the moving body than the instrument unit. The dial is provided with scales indicating various states of the moving body.

[0004] The pointer is made of a transparent light-guiding material and is attached to the output shaft of the instrument unit, a pointer extending from the proximal end toward the outer periphery of the base, and a light source. And a light receiving unit that receives light from the light source.
The indicating portion is formed so as to gradually become thinner as the distance from the base end portion increases. The light receiving unit reflects the light from the light source toward the tip of the pointing unit. The pointer is rotated by the output shaft of the instrument unit, and the indicating unit indicates a predetermined position on the scale to indicate the measured amount.

The light source emits light toward a light receiving section. The light incident on the light receiving unit is guided toward the tip of the indicating unit while being reflected toward the indicating unit and being reflected on the bottom surface of the indicating unit near the dial or on both side surfaces connected to the bottom surface. Then, the light is emitted toward the occupant from the surface of the indicating section facing the occupant. Thus, the indicator is illuminated by the light from the light source.

The meter device disclosed in the above publication rotates the hands based on the measured amount of the measuring means, and the indicating unit indicates a predetermined position on the scale, thereby providing the measured amount to the occupant of the moving body. Is shown. At this time, in order to surely show the measured amount to the occupant, the light source makes at least the indicator shine.

[0007]

In the pointer used in the above-mentioned conventional instrument device, the light from the light source is guided to the tip of the indicator while being reflected on the outer surface of the indicator.
When the light from the light source is reflected on the bottom surface, the brightness of the indicator is uneven, and it is difficult to surely shine the indicator entirely.

In any case where light is reflected on the bottom surface or on both side surfaces, the light can be reflected on the bottom surface or on both side surfaces due to a difference in refractive index between the light guide material constituting the pointer and the outside air. The angle is fixed. As described above, the shape of the pointing unit is determined by the optical limitation. Conventional instrument guidelines tend to be less flexible in design. Further, when the optical limitation is not satisfied, it is possible to uniformly shine the entire indication unit,
Of course it was impossible.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a pointer for an instrument device that can surely shine an indicator pointing to a display portion of a dial plate evenly and suppress optical limitations.

[0010]

In order to solve the above-mentioned problems and to achieve the object, a pointer of the meter device of the present invention according to the present invention comprises a meter unit having an output shaft which rotates according to a measured amount. It is used for an instrument device including an instrument case housed therein and a dial having a display section showing the state of the moving object, and the instrument unit is caused to indicate the display section and light from a light source is incident. In the pointer of the instrument device that shines and indicates the measurement amount, a base end attached to the output shaft and serving as a center of rotation when the output shaft rotates, and a base end from the base end to the base end. An indicator extending in the outer peripheral direction and indicating the display unit, and a light receiving unit provided at the base end and receiving light from the light source and reflecting the light toward the indicator, With having , The indication unit includes an overlap portion overlapping the display unit and indicating the measurement amount, and a metal reflection formed on an entire outer surface of the indication unit except for a surface of the overlap portion facing the occupant of the moving body. It is characterized by having a layer.

According to a second aspect of the present invention, there is provided a pointer of an instrument device according to the present invention, which has an instrument case accommodating an instrument unit having an output shaft which rotates according to a measured amount, and a display section which shows a state of a moving body. And a dial, which is used for an instrument device having the indicator unit, the indicator unit indicates the display unit, and light from a light source enters and shines to indicate the measurement amount. A base end attached to a shaft and serving as a center of rotation when the output shaft rotates, an indicating portion extending from the base end toward an outer peripheral direction of the base end and indicating the display unit; A light receiving unit that is provided at a base end and receives light from the light source and reflects the light toward the instruction unit, and the instruction unit overlaps the display unit and performs the measurement. Indicate quantity A metal reflecting layer formed on the entire outer surface of both the base end and the indicator except for the surface of the overlapping portion facing the occupant of the moving body and the light receiving portion, except for the overlapping portion. Features.

According to a third aspect of the present invention, there is provided a pointer of an instrument device according to the present invention, which includes an instrument case accommodating an instrument unit having an output shaft that rotates according to a measured amount, and a display unit for displaying a state of a moving body. And a dial, which is used in an instrument device having the indicator unit, the display unit is instructed by the instrument unit, and light from a light source enters and shines to indicate the measurement amount. A base end attached to a shaft and serving as a center of rotation when the output shaft rotates, an indicating portion extending from the base end toward an outer peripheral direction of the base end and indicating the display unit; A light receiving unit provided at a base end and receiving light from the light source and reflecting the light toward the indicating unit, excluding an end surface of the indicating unit facing an occupant of the moving body. Outside of the indicator It is characterized by having a metal reflective layer formed in all.

According to a fourth aspect of the present invention, there is provided a pointer of an instrument device having an instrument case accommodating an instrument unit having an output shaft which rotates in accordance with a measured amount, and a display section for showing a state of a moving body. And a dial, which is used in an instrument device having the indicator unit, the display unit is instructed by the instrument unit, and light from a light source enters and shines to indicate the measurement amount. A base end attached to a shaft and serving as a center of rotation when the output shaft rotates, an indicating portion extending from the base end toward an outer peripheral direction of the base end and indicating the display unit; A light receiving unit that is provided at a base end and receives light from the light source and reflects the light toward the indicating unit; and an end surface of the indicating unit facing an occupant of the moving body and the light receiving unit. Before excluding department It is characterized by having a metal reflective layer formed on all the outer surfaces of both and the instruction section proximal end.

According to the first aspect of the present invention, the metal reflecting layer is formed on the entire outer surface of the indicator except for the surface of the overlapping portion. For this reason, the light incident from the light receiving portion is reflected by the metal reflection layer and is guided to the overlapping portion without fail. Light guided to the overlapping portion is surely emitted toward the occupant through the surface of the overlapping portion.

According to the second aspect of the present invention, the metal reflection layer is formed over the entire outer surface of both the base end and the indicator except for the light receiving portion and the surface of the overlapping portion. I have. For this reason, the light incident from the light receiving portion is reflected by the metal reflection layer and is guided to the overlapping portion without fail. Light guided to the overlapping portion is surely emitted toward the occupant through the surface of the overlapping portion.

According to the third aspect of the present invention, the metal reflection layer is formed over the entire outer surface of the indicator except for the end face of the indicator. For this reason, the light incident from the light receiving section is reflected by the metal reflection layer and is guided to the end face of the pointing section without fail. The light guided to the end face of the indicator is reliably emitted toward the occupant through the end face.

According to the present invention, the metal reflection layer is formed over the entire outer surfaces of both the base end and the indicator except for the light receiving section and the end face of the indicator. I have.
For this reason, the light incident from the light receiving section is reflected by the metal reflection layer and is guided to the end face of the pointing section without fail. The light guided to the end face of the indicator is reliably emitted toward the occupant through the end face.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a first embodiment of the present invention will be described with reference to FIGS. A pointer (hereinafter simply referred to as a pointer) 12 of the instrument device shown in FIG. 1 according to an embodiment of the present invention is used for the vehicle combination meter 1 as the instrument device shown in FIG.

The vehicle combination meter 1 shown in FIG. 4 is a device that is mounted on a moving body such as an automobile and displays the status of the moving body to an occupant of the moving body. As shown in FIG. 4, the vehicle combination meter 1 includes a casing 3 as an instrument case, and a display instrument 4.
Dial plate 6, dial plate 10, transparent cover 11,
It has.

The casing 3 comprises a frame 3a and a bottom plate 3b.
And The frame 3a is formed in a frame shape. The bottom plate 3b is formed in a flat plate shape. Frame part 3a
Is attached to the outer edge of the bottom plate portion 3b, and the casing 3 is assembled. The assembled casing 3 is formed in a box shape having an opening 3c facing the occupant of the moving body.

Inside the casing 3 are movements 7a, 7b, 7c, 7d to be described later, a bulb (Bulb) as a light source for the dial 6, and a bulb 15 as a light source for the hands.
(Shown in FIG. 2) are accommodated. In the casing 3, the movements 7a, 7b, 7c, 7d are further provided.
Printed circuit board 36 that is electrically connected to valve 15
Is accommodated. The printed board 36 is a flexible board having flexibility, on which electronic components such as a microcomputer for controlling the operations of the above-described movements 7a, 7b, 7c, 7d and the like are mounted.

The dial 6 includes a dial 6a for displaying a vehicle speed, a dial 6b for displaying an engine speed, a dial 6c for displaying a remaining fuel amount, and a dial 6d for displaying a coolant temperature.
These dials 6a, 6b, 6c, 6d are arranged in the casing 3 through the opening 3c of the casing 3.

Since the dials 6a, 6b, 6c and 6d have substantially the same structure, the dial 6a for displaying the vehicle speed will be described below with reference to FIG. As shown in FIG. 3, the vehicle speed indicating dial 6a has a substantially circular planar shape. The vehicle speed display dial 6a is provided with a vehicle speed display scale 9 for displaying the vehicle speed as a display unit. The scale 9 for displaying the vehicle speed is an outer scale 9a.
And a numerical scale 9b indicating the actual vehicle speed.

The outer edge scale 9a is provided with a vehicle speed indicating dial 6a.
Are arranged along the circumferential direction of the vehicle speed display dial 6a. Light from a bulb or the like is transmitted by the dial light guide plate 5 to the outer edge scale 9a.
Be brilliant. The number scale 9b is a number indicating the actual vehicle speed, and is arranged inside the vehicle speed display dial 6a from the outer edge scale 9a and along the circumferential direction of the vehicle speed display dial 6a.

Each of the dials 6b, 6c and 6d has an engine speed display scale for displaying the engine speed on the surface facing the occupant and a fuel remaining amount display for displaying the remaining fuel. A scale and a cooling water temperature display scale for displaying the temperature of the cooling water are formed. These scales are also provided with the outer edge scale 9a and the numerical scale 9b described above.

The light guide plate 5 for a dial is a light guide plate 5a for a vehicle speed.
And a light guide plate 5b for engine speed, a light guide plate 5c for remaining fuel, and a light guide plate 5d for cooling water temperature. These light guide plates 5a, 5b, 5c, 5d
a, 6b, 6c, 6d. The light guide plates 5a, 5b, 5c, 5d are provided with a valve for the dial 6,
It is arranged between the corresponding dials 6a, 6b, 6c, 6d. Each of the light guide plates 5a, 5b, 5c, and 5d guides light from the bulb for the dial 6 to the outer edge scale 9a of each of the dials 6a, 6b, 6c, and 6d, and illuminates the outer edge scale 9a.

The display instrument 4 includes a speedometer 4a for displaying the speed of the vehicle, a tachometer 4b for displaying the engine speed, a fuel gauge 4c for displaying the remaining fuel, and an engine. And a temperature gauge 4d for displaying the temperature of the cooling water.

These speedometer 4a, tachometer 4b, fuel gauge 4c and temperature gauge 4c
d is a movement 7 as an instrument unit, respectively.
a, 7b, 7c, 7d and hands 12a, 12b, 12
c, 12d and the aforementioned dials 6a, 6b, 6c, 6d
And so on.

The movements 7a, 7b, 7c, 7d are:
Vehicle speed detecting means (not shown) mounted on the vehicle,
It is connected to engine speed detecting means, fuel remaining amount detecting means, cooling water temperature detecting means, and the like. Movement 7a,
Reference numerals 7b, 7c, 7d denote output shafts 8a, 8b, 8, respectively, which rotate according to the measurement amounts detected by these detection means.
c, 8d.

The pointers 12a, 12b, 12c and 12d are:
Each of them rotates integrally with the output shaft 8a, 8b, 8c, 8d of the movement 7a, 7b, 7c, 7d. Then, for example, as shown in FIG.
It is attached in a state where a base end portion 41 to be described later is located at the center portion of each of a, 6b, 6c and 6d. FIG. 3 shows the speedometer 4a as an example. However, the tachometer 4b, the fuel gauge 4c, and the temperature gauge 4d have substantially the same configuration as the speedometer 4a, and thus description thereof will be omitted.

With the above-described configuration, the display instrument 4 allows the output shaft 8a, the output shaft 8a,
8b, 8c, 8d and hands 12a, 12b, 12c, 1
Rotate 2d. Then, the pointers 12a, 12b, 12
c and 12d are dials 6a, 6b, 6c and 6d, respectively.
By indicating the desired values on the scales 9a and 9b, that is, the display unit, the status of the vehicle is displayed to the occupant.

The return plate 10 is provided at the opening 3 of the casing 3.
It is attached to the frame 3a forming c. Facing plate 10
Is provided with a speedometer exposure window 10a for exposing the dials 6a, 6b, 6c and 6d to the occupant, a tachometer exposure window 10b, and a fuel gauge exposure window and a temperature gauge exposure window 10d (not shown). I have. The return plate 10 shields a part other than the display part such as the display instrument 4 from the occupant.

The transparent cover 11 is formed in a plate shape and is made of a transparent resin or the like. The transparent cover 11 is attached to the casing 3 or the like so as to close the opening 3c of the casing 3. Transparent cover 11
Covers the opening 3c so as to close so that dust and the like do not enter the vehicle combination meter 1.

The aforementioned pointers 12a, 12b, 12c, 1
Since 2d has substantially the same structure as each other,
A description will be given of a pointer 12a for a speedometer (hereinafter simply referred to as a pointer 12) with reference to FIGS.

The pointers 12 shown in FIG. 1 and the like correspond to the movements 7a, 7b, 7
c, 7d, the dials 6a, 6b, 6
The measured values are displayed in cooperation with the scales 9a and 9b attached to c and 6d.

The pointer 12 is made of a light-transmitting light-guiding material such as an acrylic resin. As shown in FIGS. 1 and 2, the pointer 12 includes a proximal end 41 and an indicator 42 extending from the proximal end 41 toward the outer periphery of the proximal end 41.
And are integrally provided.

The base 41 has a base main body 43, a fitting tube 44, and a light receiving unit 45 integrally. Base body 4
Reference numeral 3 is linked to the instruction unit 42. The fitting pipe portion 44 is formed in a tubular shape. The fitting tube portion 44 includes a base end portion main body 43.
Extends toward the dials 6a, 6b, 6c and 6d. Each of the movements 7a, 7b, 7
The output shafts 8a, 8b, 8c and 8d of c and 7d are fitted.

The light receiving section 45 is provided on the dial 6 of the base body 43.
a, 6b, 6c, and 6d are provided on the bottom surface 43a side. The light receiving unit 45 includes a light receiving hole 46 that is concave from the bottom surface 43a and a reflecting surface 47. Light receiving hole 46
Is a bulb 15 as a light source for the pointer (FIG. 2).
Shown) pass through the emitted light. The reflection surface 47 is provided at the back of the light receiving hole 46. The reflecting surface 47 is provided in the light receiving hole 4.
6. The valve 1 incident on the base body 43 through
The light from No. 5 is reflected toward the tip of the indicator 42.

With the above-described configuration, the base end portion 41 allows the hands 12 to move the hands 7a, 7d by fitting the output shafts 8a, 8b, 8c, 8d into the fitting tube portion 44, for example.
b, 7c, 7d are supported so as to rotate integrally with the output shafts 8a, 8b, 8c, 8d. At this time, the base end portion 41 forms a rotation center of the pointer 12.

The pointing portion 42 is formed in a conical shape that gradually becomes thinner as the distance from the base end portion 41 increases.
The indicator 42 is, as shown in FIGS.
Is provided with an overlapping portion 48 which, when attached to the output shafts 8a, 8b, 8c, 8d, overlaps the numeral scale 9b of the dials 6a, 6b, 6c, 6d. The overlapping portion 48 is located at the distal end of the indicator 42 away from the base 41.

In addition, the pointer 12 of this embodiment has a surface 48a of the overlapping portion 48 facing the occupant of the automobile.
And a metal reflective layer 49 (shown by oblique parallel lines in FIGS. 1 and 3) formed on the entire outer surface of the indicating section 42 except for (1). The metal reflective layer 49 reflects light from the bulb 15 passing through the pointer 12, that is, the indicator 42. The metal reflection layer 49 is formed by plating, vapor deposition, or the like. The metal reflection layer 49 is desirably a color such as silver which can efficiently reflect light.

The metal reflection layer 49 is not formed on the surface 48a of the overlapping portion 48. The light from the bulb 15 is emitted toward the occupant of the vehicle through the surface 48a of the overlapping portion 48. Furthermore, in the present embodiment, the metal reflection layer 49 is not formed on the outer surface of the base 41.

With the above-described configuration, when the pointer 12 is attached to the vehicle combination meter 1, the base end portion 41 of the pointer 12 faces the valve 15 for the pointer as shown in FIG. And the valve 15 for the pointer
Is incident on the light receiving portion 45 of the base end portion 41. Then, this light travels to the reflection surface 47 through the light receiving hole 46. The light from the bulb 15 is reflected by the reflecting surface 47.
The light is reflected along the arrow K in FIG.

The light reflected by the reflecting surface 47 toward the overlapping portion 48 of the pointing portion 42 travels toward the overlapping portion 48 while being reflected by the metal reflecting layer 49 formed on the outer surface of the pointing portion 42. . For this reason, the light from the bulb 15 does not exit the indicator 42 through the metal reflective layer 49. When the light from the bulb 15 travels to the overlapping portion 48, the light is emitted toward the occupant of the automobile through the surface 48a of the overlapping portion 48.

The emitted light is transmitted to the occupant by the transparent cover 11.
Viewed through. Thus, the surface 48a of the overlapping portion 48 of the pointer 12 shines as seen from the occupant of the vehicle. Then, the occupant of the automobile can grasp the position indicated by the overlapping portion 48 of the scales 9a and 9b. The occupant can grasp the measurement amount detected by each detecting means of the car, and can grasp various states of the car.

According to this embodiment, the metal reflection layer 49 is not formed on the outer surface of the base end portion 41 including the light receiving portion 45. Therefore, the light from the pointer bulb 15 is reliably incident on the light receiving unit 45. Then, the light from the bulb 15 is reliably reflected by the reflection surface 47 toward the tip of the pointing unit 42.

Indicating section 4 excluding surface 48a of overlapping section 48
A metal reflection layer 49 is formed on the entire outer surface of No. 2.
Therefore, the light reflected by the reflection surface 47 can be reliably reflected by the metal reflection layer 49 and can be guided to the overlapping portion 48 without fail. Then, the light is passed through the surface 48a of the overlapping portion 48 where the metal reflection layer 49 is not formed.
The light can be reliably emitted toward the occupant.

The light from the bulb 15 incident from the light receiving section 45 can be reliably reflected by the metal reflection layer 49. For this reason, the entire surface 48a of the overlapping portion 48 of the pointing portion 42 can be surely illuminated evenly, and the pointing portion 42, that is, the pointer 12
Optical limitation in determining the shape of the lens can be suppressed.

In the above-described embodiment, the base portion 41
No metal reflection layer 49 is formed on the surface. However, in the present invention, it is a matter of course that the metal reflection layer 49 may be formed on the surface of the base end portion 41 as needed.

Next, a pointer 12 according to a second embodiment of the present invention will be described with reference to FIGS. The same components as those in the first embodiment are denoted by the same reference numerals and described. The pointer 12 of the present embodiment is also used in the above-described vehicle combination meter 1.

In this embodiment, as shown in FIGS. 5 and 6, a metal reflection layer 49 is formed on the entire outer surface of the indicator 42 except for the end surface 42a facing the occupant of the vehicle over the entire length of the indicator 42. Have been. The end surface 42a includes a surface 48a of the overlapping portion 48.

In the pointer 12 of this embodiment, the light from the bulb 15 incident from the light receiving section 45 is reflected by the reflecting surface 47 toward the tip of the pointing section 42. And the valve 15
Is reflected on the surface of the metal reflection layer 49 and emitted toward the occupant of the automobile through the end face 42a. Thus, the end surface 42a of the pointing unit 42 shines.

In the present embodiment, the light from the bulb 15 can be surely reflected by the metal reflection layer 49, and
a can be reliably reached. Then, the light can be surely emitted toward the occupant through the end surface 42a where the metal reflection layer 49 is not formed. The light from the bulb 15 incident from the light receiving section 45 can be reliably reflected by the metal reflection layer 49. For this reason, the entire end face 42a of the pointing portion 42 can be reliably illuminated evenly, and the optical limitation in determining the shape of the pointing portion 42, that is, the pointer 12 can be suppressed.

Next, a pointer 12 according to a third embodiment of the present invention will be described with reference to FIGS. The same components as those in the first and second embodiments described above are denoted by the same reference numerals, and description thereof will be omitted. Guideline 12 of this embodiment
Are also used in the above-described vehicle combination meter 1.

In this embodiment, as shown in FIGS. 7 and 8, the metal reflection layer 49 is formed over the entire outer surface of the pointer 12 except for the light receiving portion 45 and the surface 48a of the overlapping portion 48. . That is, the light receiving portion 45 and the surface 4 of the overlapping portion 48
The metal reflection layer 49 is formed over the entire outer surfaces of both the base end portion 41 and the pointing portion 42 except 8a. In the pointer 12 of the present embodiment, light from the bulb 15 incident from the light receiving unit 45 is reflected by the reflecting surface 47 toward the overlapping portion 48, that is, the tip of the pointing unit 42. And valve 1
The light from 5 is reflected by the surface of the metal reflection layer 49 and is emitted toward the occupant of the automobile through the surface 48a of the overlapping portion 48. Thus, the surface 48 of the overlapping portion 48
a shines.

In this embodiment, similarly to the first embodiment, the light from the bulb 15 is transmitted to the metal reflection layer 49.
And can be reliably guided to the overlapping portion 48. Then, the light can be reliably emitted toward the occupant through the surface 48a of the overlapping portion 48 where the metal reflection layer 49 is not formed.

Light from the bulb 15 incident from the light receiving section 45 can be reliably reflected by the metal reflection layer 49. For this reason, the entire surface 48a of the overlapping portion 48 of the pointing portion 42 can be surely illuminated evenly, and the pointing portion 42, that is, the pointer 12
Optical limitation in determining the shape of the lens can be suppressed.

Further, in this embodiment, the metal reflection layer 49 is formed over the entire outer surface of the base end portion 41 except for the light receiving portion 45. Therefore, the light from the bulb 15 incident from the light receiving unit 45 can be more reliably guided to the surface 48 a of the overlapping unit 48.

Next, a pointer 12 according to a fourth embodiment of the present invention will be described with reference to FIGS. In addition,
The same components as those in the first to third embodiments are denoted by the same reference numerals and described. Guideline 12 of this embodiment
Are also used in the above-described vehicle combination meter 1.

In the present embodiment, as shown in FIGS. 9 and 10, an end surface 42a of
A metal reflective layer 49 is formed on the entire outer surface of the pointer 12 except for the light receiving portion 45 and the light receiving portion 45. That is, the metal reflection layer 49 is formed on the entire outer surface of both the base end portion 41 and the pointing portion 42 except the end surface 42a of the pointing portion 42 facing the occupant of the automobile and the light receiving portion 45. The end surface 42a
Includes the surface 48a of the overlapping portion 48.

In the pointer 12 of this embodiment, the light from the bulb 15 incident from the light receiving portion 45 is reflected by the reflecting surface 47 toward the overlapping portion 48, ie, the tip of the pointing portion 42. The light from the bulb 15 is reflected on the surface of the metal reflection layer 49 and is emitted toward the occupant of the automobile through the end surface 42a. Thus, the end surface 4 of the indicator 42
2a shines.

In the present embodiment, the light from the bulb 15 can be surely reflected by the metal reflection layer 49, and
a can be reliably reached. Then, the light can be surely emitted toward the occupant through the end surface 42a where the metal reflection layer 49 is not formed. The light from the bulb 15 incident from the light receiving section 45 can be reliably reflected by the metal reflection layer 49. For this reason, the entire end surface 42a of the pointing portion 42 can be reliably illuminated evenly, and the optical limitation in determining the shape of the pointing portion 42, that is, the pointer 12 can be suppressed.

Further, in this embodiment, the metal reflection layer 49 is formed over the entire outer surface of the base end portion 41 except for the light receiving portion 45. Therefore, the light from the bulb 15 incident from the light receiving unit 45 can be more reliably guided to the surface 48 a of the overlapping unit 48.

In the first to fourth embodiments described above,
A bottom surface 42b of the indicating section 42 facing the dials 6a, 6b, 6c, 6d (shown in FIGS. 2, 6, 8, and 10).
Also, a metal reflective layer 49 is formed on both side surfaces 42c (only one is shown in FIGS. 1, 5, 7, and 9) continuous with both the end surface 42a and the bottom surface 42b. However, in the present invention, the bottom surface 42b and the both side surfaces 42c
If the light from the bulb 15 is totally reflected,
Of course, it is not necessary to form the metal reflection layer 49 on these bottom surfaces 42b and both side surfaces 42c.

[0065]

As described above, according to the first aspect of the present invention, the metal reflection layer is formed on the entire outer surface of the indicator except for the surface of the overlapping portion. Therefore, the light incident from the light receiving section can be surely reflected by the metal reflection layer. Therefore, the light can be reliably guided to the overlapping portion, and can be reliably emitted toward the occupant through the surface of the overlapping portion.

As described above, since the light incident from the light receiving portion can be surely reflected by the metal reflection layer, it is possible to suppress an optical limitation in determining the shape of the pointing portion, that is, the pointer. Further, the light incident from the light receiving portion can be reliably reflected by the metal reflection layer.
For this reason, it is possible to illuminate the entire overlapping portion of the pointing portion evenly.

According to the second aspect of the present invention, the metal reflection layer is formed on the entire outer surface of both the base end portion and the indicator except for the light receiving portion and the surface of the overlapping portion. For this reason,
Light incident from the light receiving section can be reliably reflected by the metal reflection layer. Therefore, the light can be reliably guided to the overlapping portion, and can be reliably emitted toward the occupant through the surface of the overlapping portion.

As described above, since the light incident from the light receiving portion can be surely reflected by the metal reflection layer, the optical limitation in determining the shape of the pointing portion, that is, the pointer, can be suppressed. Further, the light incident from the light receiving portion can be reliably reflected by the metal reflection layer.
For this reason, it is possible to illuminate the entire overlapping portion of the pointing portion evenly.

According to the third aspect of the present invention, the metal reflection layer is formed on the entire outer surface of the indicator except for the end face of the indicator. Therefore, the light incident from the light receiving section can be surely reflected by the metal reflection layer. Therefore, the light can be surely guided to the end face of the indicating section, and can be surely emitted toward the occupant through the end face of the indicating section.

As described above, since the light incident from the light receiving portion can be surely reflected by the metal reflection layer, the optical limitation in determining the shape of the pointing portion, that is, the pointer, can be suppressed. Further, the light incident from the light receiving portion can be reliably reflected by the metal reflection layer.
For this reason, it is possible to illuminate the entire end face of the pointing unit evenly.

According to the fourth aspect of the present invention, the metal reflection layer is formed over the entire outer surfaces of both the base end and the indicator except for the end faces of the light receiver and the indicator. For this reason,
Light incident from the light receiving section can be reliably reflected by the metal reflection layer. Therefore, the light can be surely guided to the end face of the indicating section, and can be surely emitted toward the occupant through the end face of the indicating section.

As described above, since the light incident from the light receiving portion can be surely reflected by the metal reflecting layer, the optical limitation in determining the shape of the pointing portion, that is, the pointer, can be suppressed. Further, the light incident from the light receiving portion can be reliably reflected by the metal reflection layer.
For this reason, it is possible to illuminate the entire end face of the pointing unit evenly.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a pointer of an instrument device according to an embodiment of the present invention.

FIG. 2 is a sectional view taken along the line II-II in FIG.

FIG. 3 is a front view showing a state where the hands shown in FIG. 1 are attached to a vehicle combination meter.

FIG. 4 is an exploded perspective view showing a vehicle combination meter using the hands shown in FIG. 1;

FIG. 5 is a perspective view showing a pointer according to a second embodiment of the present invention.

FIG. 6 is a sectional view taken along the line VI-VI in FIG. 5;

FIG. 7 is a perspective view showing a pointer according to a third embodiment of the present invention.

FIG. 8 is a sectional view taken along the line VIII-VIII in FIG.

FIG. 9 is a perspective view showing a pointer according to a fourth embodiment of the present invention.

FIG. 10 is a sectional view taken along line XX in FIG. 9;

[Explanation of symbols]

Reference Signs List 1 Combination meter for vehicle (instrument device) 3 Casing (instrument case) 6 Dial 7a, 7b, 7c, 7d Movement (instrument unit) 8a, 8b, 8c, 8d Output shaft 9 Vehicle speed display scale (display unit) 12, 12a, 12b, 12c, 12d Indicators of instrument 15 Bulb (light source) 41 Base end 42 Indicating part 42a End face 45 Light receiving part 48 Overlapping part 48a Surface 49 Metal reflective layer

Claims (4)

[Claims] The present invention is used for an instrument device comprising: an instrument case accommodating an instrument unit having an output shaft that rotates according to a measured amount; and a dial plate having a display unit that shows a state of a moving body. In the pointer of the instrument device, which is caused to indicate the display unit by the instrument unit and light from a light source enters and shines to indicate the measurement amount, when attached to the output shaft and the output shaft rotates A base end portion serving as a rotation center, an instruction portion extending from the base end portion toward the outer peripheral direction of the base end portion and indicating the display portion, and a light provided from the base end portion and emitted from the light source. A light-receiving unit that receives light and reflects the light toward the instruction unit, and the instruction unit includes an overlap unit that overlaps the display unit and indicates the measurement amount. Moving body A metal reflecting layer formed on the entire outer surface of the indicator except for the surface facing the occupant. 2. An instrument device comprising: an instrument case accommodating an instrument unit having an output shaft that rotates in accordance with a measured amount; and a dial plate having a display unit for displaying a state of a moving body. In the pointer of the instrument device, which is caused to indicate the display unit by the instrument unit and light from a light source enters and shines to indicate the measurement amount, when attached to the output shaft and the output shaft rotates A base end portion serving as a rotation center, an instruction portion extending from the base end portion toward the outer peripheral direction of the base end portion and indicating the display portion, and a light provided from the base end portion and emitted from the light source. A light-receiving unit that receives light and reflects the light toward the instruction unit, and the instruction unit includes an overlap unit that overlaps the display unit and indicates the measurement amount. Moving body A pointer for an instrument device, comprising: a metal reflecting layer formed on all outer surfaces of both a base end portion and an indicator portion excluding a surface facing an occupant and the light receiving portion. 3. An instrument device comprising: an instrument case accommodating an instrument unit having an output shaft that rotates in accordance with a measurement amount; and a dial plate having a display unit for displaying a state of a moving body. In the pointer of the instrument device, which is caused to indicate the display unit by the instrument unit and light from a light source enters and shines to indicate the measurement amount, when attached to the output shaft and the output shaft rotates A base end serving as a center of rotation, an indicator extending from the base end toward the outer periphery of the base end and indicating the display unit; and a light provided from the base end and provided by the light source. A light-receiving unit that receives light and reflects the light toward the indicator, and a metal reflection layer formed on the entire outer surface of the indicator except for an end surface of the indicator that faces the occupant of the moving body. Octopus with Guidance of the instrument device according to claim. 4. An instrument device comprising: an instrument case accommodating an instrument unit having an output shaft that rotates in accordance with a measured amount; and a dial plate having a display unit for displaying a state of a moving body. In the pointer of the instrument device, which is caused to indicate the display unit by the instrument unit and light from a light source enters and shines to indicate the measurement amount, when attached to the output shaft and the output shaft rotates A base end portion serving as a rotation center, an instruction portion extending from the base end portion toward the outer peripheral direction of the base end portion and indicating the display portion, and a light provided from the base end portion and emitted from the light source. A light-receiving unit that receives light and reflects the light toward the instruction unit, and the base end and the instruction unit excluding an end surface of the instruction unit facing the occupant of the moving object and the light-receiving unit. On both outer surfaces Guidance of the instrument apparatus characterized by comprising a metal reflective layer was made.