JPH08219822A - Indicator for meter - Google Patents

Abstract

PURPOSE: To secure the appearance of a meter even in the case where an indicator is irradiated with the light from the top of the indicator when the indicator is not lighted by forming the longitudinal cross section of the lower surface of an indicator main body into the saw tooth shape. CONSTITUTION: When a light emitting body 2 is lighted and an indicator main body 1 is irradiated with the light, the light emission, which enters from the light emitting body 2 through a light receiver surface 1b, is efficiently reflected to the top surface of the indicator main body 1 by the reflecting surface, and the lighting luminance of the main body 1 is improved. When the light emitting body 2 is not lighted, even in the case where the main body 1 is irradiated with the external light, reflection of the external light at the angle, at which the reflected light passes through the top surface of the main body 1, is prevented by the saw tooth irregular part 1a formed in the lower surface of the main body 1. Consequently, generation of the phenomenon that the main body 1 seems to be shining when the main body 1 is not lighted and that the main body 1 seems to be lighted is eliminated.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pointer for an instrument used for a vehicle meter or the like, and in particular, the pointer main body is formed of a transparent or translucent light guide and is provided in the pointer or in the instrument. In addition, the present invention relates to a pointer for a meter that introduces light from a light emitting element into a pointer body to illuminate a pointer situation with luminescence.

[0002]

2. Description of the Related Art As a pointer for an instrument of this type, there has been known a pointer provided with an unevenness for light reflection on the lower surface of the pointer as disclosed in Japanese Utility Model Laid-Open No. 64-10625. In this instrument pointer, as seen from FIG. 2 of the publication, equilateral triangular saw teeth are formed as the irregularities. Then, the light incident on the pointer main body from the pointer end portion is reflected above the pointer by the regular triangular concave-convex surface to improve the brightness of the pointer illumination.

[0003]

However, if the irregular shape of an equilateral triangle is formed on the lower surface of the pointer, it is possible to improve the brightness of the pointer illumination, but when the pointer illumination is not performed. At, the incident light from the upper direction of the pointer into the pointer is reflected by the uneven surface of the lower surface of the pointer, and is emitted and diffused again in the upper direction of the pointer. That is, even when the pointer is not illuminated and illuminated, the occupant visually recognizes it as if the pointer is emitting light. Moreover, when such a pointer is adopted in a meter having a black face, even when the pointer is not illuminated and illuminated,
The pointer body may be visible. This adversely affects the appearance of the instrument and also deteriorates the design.

Therefore, an object of the present invention is to provide a pointer for a meter, which does not spoil the appearance of the meter even when the pointer is not illuminated and illuminated with light incident from above the pointer.

[0005]

In order to solve the above-mentioned problems, an instrument pointer according to the present invention has a light-receiving portion for allowing light emitted from a light-emitting body to enter the body of the pointer. In an instrument pointer in which the pointer body emits light by illuminating the pointer body, the pointer body includes a lower surface having a sawtooth-shaped longitudinal section, and each sawtooth formed on the lower surface. Is a shape in which the apex of the sawtooth is formed at a position deviated to the light receiving portion side from a vertical line with respect to a straight line that passes through the center between adjacent concave points of the sawtooth shape and connects the concave points. Characterize.

Further, in the pointer for a meter, which has a light receiving portion for making the light emitted from the light emitting body enter into the pointer main body, and the light emitting from the light emitting body is incident from the light receiving portion, the pointer body emits light. The pointer main body includes a lower surface having a sawtooth-shaped cross section in the longitudinal direction of the pointer main body, and two sawtooth surfaces of each sawtooth formed on the lower surface,
An angle formed by a reflection surface having an inner surface facing the light receiving portion side and a straight line connecting the concave points of the sawtooth shape is a straight line connecting the reflection surface having the inner surface facing the tip side of the pointer body and the concave points of the sawtooth shape. It is also possible to adopt an instrument pointer, which is characterized in that it is formed so as to be smaller than the angle formed by and.

Further, in the pointer for a meter, which has a light receiving portion for making the light emitted from the light emitting body enter the pointer main body, and the light emitting from the light emitting body enters from the light receiving portion to illuminate and illuminate the pointer main body, The pointer main body includes a lower surface having a sawtooth-shaped cross section in the longitudinal direction of the pointer main body, and the inner surface of the two reflecting surfaces of each sawtooth formed on the lower surface faces the tip side of the pointer main body. An instrument pointer may be adopted in which the angle formed by the reflecting surface and the straight line connecting the sawtooth-shaped concave points is substantially a right angle.

Also, the light-receiving portion is arranged so as to face the light-emitting body, and the light-receiving portion is formed in a convex shape on the light-emitting body side. Good. In addition, an instrument pointer may be adopted in which the light receiving section is arranged so as to face a light guide plate that guides light emitted from the light emitter to the pointer body.

[0009]

The instrument pointer of the present invention constructed as described above operates as follows. In the above-mentioned instrument pointer, since the lower surface of the pointer main body is formed as described above, when the pointer main body is illuminated, the inner surface of the sawtooth shape faces the light receiving section side from the light receiving section toward the lower surface of the pointer main body. The light rays are efficiently reflected toward the upper surface of the pointer body to increase the brightness of the pointer body. Further, when the pointer main body is not illuminated, even if the pointer main body is irradiated with external light from the outside, the external light reaching the lower surface of the pointer is reflected by the sawtooth reflecting surface with the apex shifted, and the external light is emitted. Can be passed through the pointer body or at least reflected in a direction different from the incident direction of external light to the pointer body. Therefore, if such an instrument pointer is adopted, when the pointer body is not illuminated,
The pointer does not appear to be shining or shine due to external light. Further, when such a pointer is covered with, for example, a black face, it is possible to prevent an occupant from visually recognizing the pointer body.

Further, even if the reflecting surface of each sawtooth in the sawtooth shape on the lower surface of the pointer body is formed as described in claim 2, the lower surface of the sawtooth shape is lighted when the pointer body is illuminated or not illuminated. Acts as described above for the reflection and passage of. As described in claim 3, when the sawtooth shape is a substantially right triangle, the light emitted from below the light receiving portion is more efficiently reflected toward the upper surface during illumination of the pointer body to improve the brightness of the pointer body. You can Even when the pointer body is not illuminated, even if external light is emitted perpendicularly to the pointer body from above, it will almost certainly reflect in a direction different from the incident direction of the external light or pass through the pointer body. can do.

When the light receiving portion is formed in a convex shape as described in claim 4, the light emitted from the light emitting body can be condensed when it is received by the pointer main body, and the light can be substantially linearly formed. Light emission can be guided to the tip. Further, as described in claim 5, the same effect is exhibited even if the light emitted from the light guide plate is received by the pointer body.

[0012]

An embodiment of the present invention will be described below with reference to the drawings. The first aspect of the present invention will be described with reference to FIGS. 1, 2, 3, and 4.
Examples will be described. FIG. 1 shows the overall configuration of an instrument using an instrument pointer according to the present invention. The pointer main body 1 is fixed to a pointer mounting member 12, and the pointer mounting member 12 is rotatably fixed to a pointer shaft 4. As a result, the pointer body 1 rotates on the dial. The lower surface of the pointer main body 1 is provided in parallel with a light emission center axis from a light emitting body 2 which will be described later, and the upper surface of the pointer main body 1 is tapered so that the thickness becomes thinner toward the tip of the pointer. Pointer shaft 4 of pointer body 1
A light emitting body 2 such as an LED is provided in the vicinity of the end portion on the side, and light emitted from the light emitting body 2 is received by the light receiving surface 1 of the pointer main body 1.
It enters into the pointer main body from b and illuminates the pointer main body 1. The light receiving surface 1b has a concave shape with respect to the light emitting body 2, and diffuses the illumination light from the light emitting body 2 into the pointer body 1 as shown in FIG. A conducting lead wire 6 extending from the light emitting body 2 is electrically connected to a conducting terminal 7 by soldering or the like, and the other end of the conducting terminal 7 is an insulator 5 coaxially attached to the pointer shaft 4. Is electrically connected to the inner end terminal 8 formed in. The light emitting body 2, the conducting lead wire 6 and the pointer attaching member 12 are housed in a case 11, and a part of the conducting terminal 7 is also housed in the case 11. The internal terminal 8 is
It is electrically connected to a power supply source (not shown) and supplies power to the light emitting body 2. In addition, the insulator 5,
The cross coil 13 for driving the pointer shaft 4 and the like are housed in the inner unit 10, and the inner unit 10 is installed on the printed wiring board 9. In addition, the printed circuit board 9 has a cross coil 1
3, parts for controlling the power supply of 3 and for controlling the drive of the pointer main body 1 are arranged, and are electrically connected to the internal unit 10.

On the lower surface of the pointer main body 1, a sawtooth-shaped sawtooth uneven portion 1a is formed, and this shape is shown in FIGS. The sawtooth-shaped sawtooth irregularities 1a have a reflecting surface A and a reflecting surface B, respectively. The inner surface of the reflecting surface A faces the light emitter 2 side, that is, the light receiving surface 1b side, and the inner surface of the reflecting surface B is the tip of the pointer main body 1. Looking to the side. In the sawtooth-shaped sawtooth uneven portion 1a, the reflecting surface A and the reflecting surface B form a concave portion 1a1 and an apex 1a2. Then, in the triangular shape formed by the two adjacent concave portions 1a1 and the apexes 1a2 existing therebetween, the apex 1a2 is located closer to the light emitting body 2 side. That is, as shown in FIG. 3, when the angle α formed by the straight line connecting the vertices 1a2 and the reflecting surface A and the angle β formed by the straight line connecting the vertices 1a2 and the reflecting surface B are compared, the angle α is larger than the angle β. The sawtooth uneven portion 1a in a sawtooth shape so that
Are formed.

Next, on the lower surface of the pointer main body 1, the sawtooth irregularities 1a having the above-mentioned sawtooth shape are illuminating light a from the light emitting body 2 and external light a incident on the pointer main body 1 from above. , B, c will be described below. Illumination light that has entered the pointer main body 1 from the light emitter 2 partially hits the upper surface of the pointer main body 1 and diffuses, and part of the illumination light reaches the tip of the pointer main body 1. Further, a part of the illumination light a that has entered the pointer main body 1 is applied to the lower surface of the pointer main body 1. At this time, as shown in FIG. 2, the illumination light a travels to the reflecting surface A of the sawtooth uneven portion 1a having a sawtooth shape with an angle larger than the critical angle, and is totally reflected upward in the pointer body 1. To do. Therefore, the illumination light a that has proceeded toward the lower surface of the pointer main body 1 in this way can also be emitted in the upward direction of the pointer main body 1, so that the illumination brightness of the pointer main body 1 can be increased.

When the light emitter 2 does not emit light and the main body of the pointer is not illuminated, the external light that illuminates the main body 1 of the pointer from above the main body 1 is set to 3 depending on the angle of incidence on the main body 1. Divide into patterns. First, when the external light a that is incident on the lower surface of the pointer main body 1 at a substantially right angle is incident on the pointer main body 1 and then proceeds to the reflecting surface A, the incident angle on the reflecting surface A is a critical angle. Since it is smaller, it does not reflect on the reflecting surface A and penetrates the lower end of the pointer body 1. Even if the external light a reflected by the reflecting surface A exists, this light travels in the direction of the light receiving surface 1b of the pointer body 1 or strikes an adjacent reflecting surface and passes through the pointer body 1. The external light a that has traveled to the reflecting surface B is totally reflected because the angle of incidence on the reflecting surface B is larger than the critical angle, but this reflected light travels toward the tip side of the pointer body 1 and is almost in the direction of the occupant's eyes. I can't go to. Therefore, when the light emitter 2 is not emitting light, the pointer body 1 does not give the occupant a visual feeling as if the pointer body was illuminated by the external light a. Next, the external light b entering the pointer main body 1 from the front end side of the pointer main body 1 at a predetermined angle will be described. When the external light b travels to the reflection surfaces A and B on the lower surface of the pointer main body 1, the entrance angle to the reflection surfaces A and B may be greater than or equal to the critical angle or smaller than the critical angle. If the approach angle is smaller than the critical angle, it penetrates through the pointer body 1, so the external light b is not reflected in the direction of the eyes of the occupant, and the occupant does not visually recognize the pointer body 1. Further, when the entering angle of the external light b to the reflecting surfaces A and B is equal to or more than the critical angle, the light is diffused by the sawtooth unevenness portion 1a on the lower surface of the pointer main body 1, as shown in the figure. Even if most of the light travels to the light receiving surface 1b side of the pointer main body 1 and heads toward the upper surface of the pointer main body 1, the light strikes the upper surface at an angle equal to or greater than the critical angle, so that the light travels inside the pointer main body 1 in the view direction of the occupant. Does not emit. Next, the external light c that enters the pointer main body 1 at a predetermined angle from the light receiving surface 1b side of the pointer main body 1 will be described. Most of the external light c enters the reflecting surface A, but at this time, the entering angle to the reflecting surface A is smaller than the critical angle. Therefore,
The pointer body 1 passes through the reflecting surface A.

The effect of the pointer for a meter constructed and operated as described above will be described below. As described above, when the light emitter 2 is turned on and the pointer main body 1 is illuminated, the light emitted from the light emitter 2 through the light receiving surface 1b is efficiently reflected on the upper surface of the pointer main body 1 by the reflecting surface A. It is reflected, and the illumination brightness of the pointer main body 1 can be improved. Even when the pointer body 1 is irradiated with external light when the light emitter 2 is not lit, the sawtooth unevenness 1a formed on the lower surface of the pointer body 1 causes the external light to illuminate the upper surface of the pointer body 1 as described above. There is almost no reflection at an angle passing through, and it is possible to prevent the pointer main body from appearing bright or appearing as if it is emitting light except when the pointer main body 1 is illuminated. Further, when such a pointer is adopted in an instrument having a black face, even when external light is applied to the pointer body during non-luminous illumination, the pointer body shines and becomes visible to a vehicle occupant or the like. Can be prevented. This improves the appearance of the instrument itself in terms of design.

Next, a second embodiment of the present invention will be described with reference to FIGS. 5, 6, 7, and 8. In the following embodiments, the same components as those in the first embodiment are designated by the same reference numerals, and detailed description thereof will be omitted. In the second embodiment, in the shape of the sawtooth irregularity 1a formed on the lower surface of the pointer main body 1, the angle β formed by the straight line connecting the reflecting surface B and the apex 1a2 and the reflecting surface B is substantially right angle.

Even when the sawtooth irregularity 1a on the lower surface of the pointer main body 1 is formed in this way, the portion of the illumination light a from the light emitting body 2 that has proceeded to the lower surface of the pointer main body 1 is reflected by the reflecting surface A. It is reflected above 1, and is emitted to the outside of the pointer body. Therefore, when the light emitting body 2 emits light, the luminance of the light emitting illumination of the pointer main body 1 can be further increased. Also, when the pointer body 1 in which the light emitter 2 does not emit light is not illuminated,
First, as can be seen from FIG. 6, the external light a that enters the lower surface of the pointer main body 1 substantially perpendicularly proceeds to the reflection surface A and almost passes through the pointer main body 1. In addition, external light c that enters from the light receiving surface 1b side at a predetermined angle in the pointer main body 1 also advances to the reflecting surface A at an angle smaller than the critical angle and passes through the pointer main body 1 as shown in FIG. Further, the external light b entering from the tip side of the pointer main body 1 at a predetermined angle is shown in FIG.
Although most of the light that has proceeded to the reflecting surface B is at or above the critical angle and is totally reflected, the light totally reflected in this way is then smaller than the critical angle on the reflecting surface A. Since it enters at an angle, it passes through the pointer body 1. The external light b that has traveled to the reflecting surface A is totally reflected and travels to the upper surface of the pointer main body 1, but is also totally reflected on the upper surface of the pointer main body 1 so that it travels inside the pointer main body 1 and is diffused toward the light receiving surface 1b. .
It is necessary to set the inclination angle γ of the upper surface of the pointer body 1 so that the upper surface of the pointer body 1 is totally reflected. In addition, the external light b that has entered the pointer main body from the base of the pointer main body 1, that is, near the light receiving surface 1 passes through the pointer main body 1 or is diffused in the pointer main body 1. Even if the sawtooth unevenness portion 1a is formed on the lower surface of the pointer main body 1 in this manner, it is possible to achieve the same effect as the first embodiment.

Further, in the first embodiment, the light receiving surface 1b
Has a concave shape with respect to the light emitter 2, but in the second embodiment, the light receiving surface 1b has a convex shape with respect to the light emitter 2. As a result, as shown in FIG. 5, the illumination light traveling from the light emitting body 2 to the light receiving surface 1b is condensed by the convex light receiving surface 1b, and travels in the pointer body 1 in a highly dense and linear manner.
Thereby, the reflection on the side wall of the pointer main body 1 can be reduced, and the reflection loss can be reduced. Therefore, the pointer body 1
The brightness of can be further increased.

The present invention is not limited to the above embodiment, but can be modified in various ways as follows. A first modification will be described with reference to FIG. In the above-described embodiment, in the shape of the pointer main body 1, the angle is provided so that the lower surface is parallel to the light emission central axis of the light emitting body 2 and the upper surface is narrowed toward the tip. However, as shown in FIG. 9, the upper surface of the pointer main body 1 is set parallel to the light emission center axis of the light emitting body 2, and the lower surface having the sawtooth unevenness 1a is formed so as to form a predetermined angle θ with the light emission center axis. . If formed in this way, in an instrument having such a pointer main body 1, even when the pointer main body 1 is viewed from above through the black face during pointer light emission illumination, it can be visually recognized with uniform brightness. That is,
This is because the instrument cover (not shown) and the upper surface of the pointer main body 1 can be parallel to each other. Further, since the height of the saw-tooth unevenness portion 1a on the lower surface of the pointer main body 1 is gradually shifted from the position of the light emitter 2, the reflection efficiency toward the upper surface is improved, and the brightness can be further increased.

A second modification will be described with reference to FIG. In the second modified example, the lower surface of the pointer main body 1 has a light-emitting body 2
Is parallel to the central axis of light emission and the upper surface has a predetermined inclination angle. At this time, a predetermined length from the tip of the pointer body 1,
A change angle X is provided on the lower surface of the pointer main body 1 so as to face the upper side of the pointer main body 1. In this way, by bending the lower surface upward at the tip of the pointer, the amount of illumination light reflection at the tip of the pointer is increased. This increases the brightness of the tip of the pointer,
The brightness of the pointer body can be made uniform.

Further, in addition to the configuration of the second modification shown in FIG. 10, as shown in FIG. 11, on the upper surface of the pointer main body 1, the predetermined length, that is, the same length as the length of the lower end bent, is set to the emission center. It may be parallel to the axis. That is, the upper surface of the pointer body 1 is formed so as to be lifted upward from the position of a predetermined length from the pointer tip by the change angle Y, and the thickness of the tip of the pointer body 1 is increased. In this way, if the thickness is increased at the tip of the pointer main body 1,
Stripe patterns that may occur due to the sawtooth unevenness 1a on the lower surface of the pointer are not clearly shown. Even if the striped pattern occurs, the thickness of the pointer is relatively small between the light-receiving surface 1 side and the tip, so that a uniform striped pattern is obtained.
It is possible to reduce design problems.

As shown in FIG. 12, even when the lower surface of the pointer main body 1 is parallel to the central axis of light emission, the thickness of the pointer tip is increased at a change angle Z from a position of a predetermined length from the tip of the pointer. If formed in this way, the same effect as that described in detail with reference to FIG. 11 can be obtained. Next, a third modification will be described with reference to FIG. In the above examples,
As a structure for supplying power to the light emitting body 2, the lead wire 6 for conduction is connected to the inner end terminal 8 via the terminal 7 for conduction. However, this requires a lot of trouble and a large number of parts for connecting the conducting lead wire 6 to the conducting terminal 7.
You may make it employ | adopt the light-emitting body 2 which provided the lead wire 6a for connection which reaches | attains the inner end terminal 8. At this time, the lead wire 6a for conduction is bent into a U shape in the case 11 and is guided to the inner end terminal 8. In this way, the number of parts can be reduced and the assembly cost can be reduced.

As shown in FIG. 14, the pointer body 1 is disposed close to the tip of the pointer mounting member 12, and the light emitter 2 is installed on the opposite side of the inner end terminal 8 with respect to the pointer shaft 4. You may In this case, the conducting lead wire 6a can be bent and arranged in an L shape. Further, although the light-emitting body 2 has been laterally placed until the above, as shown in FIG.
The light emitting body 2 may be arranged vertically. In this case, it is not necessary to reach the inner end terminal 8 and bend the conducting lead wire 6a without making the conducting lead wire 6a too long.

Next, a fourth modification will be described with reference to FIG.
Up to the above, the luminous body 2 has been housed and installed in the case 11 in the vicinity of the pointer main body 1. However, irrespective of this, a light-emitting body may be installed at an arbitrary portion in the instrument, and the light guide plate 20 may be used to guide light emission from the light-emitting body to the pointer. At this time, the light guide plate 20 is provided on the lower surface side of the dial plate 3, and the portion of the light guide plate 20 facing the pointer shaft 4 is inclined so that the light passing through the light guide plate 20 is reflected on the upper surface. The inclined surface 21 is provided. The inclined surface 21 may be conical or pyramidal in the light guide plate 20. Therefore, the light passing through the inside of the light guide plate 20 is reflected by the inclined surface 21, passes through the emitting surface 22, and enters the light receiving surface 1b of the pointer main body.
The light receiving surface 1b of the pointer main body 1 is extended so as to face the emitting surface 22 of the light guide plate 20. The light incident from the light receiving surface 1b is reflected by the reflecting surface C provided on the pointer main body 1 toward the tip of the pointer main body 1. In this way, the light guided in the tip end direction of the pointer main body is reflected by the reflecting surface A of the sawtooth uneven portion 1a formed on the lower surface of the pointer main body 1,
The light is emitted from the upper surface, and the light emission illumination of the pointer main body 1 is executed.

When the light guide plate is used as described above, the size of the case 11 can be reduced, and the conductive structure to the light emitting body 2 can be simplified. As shown in FIG. 17, the inclined surface 21 is not formed on the light guide plate 20, the inclined surface 1c is provided on the pointer body 1, and the light emitted from the emitting surface 22 is received from the light receiving surface 1b. May be reflected to the reflection surface C side.

Further, up to the above, in the saw-tooth concave-convex portion 1a on the lower surface of the pointer main body 1, all the triangular shapes having the bases of the adjacent concave portions 1a1 forming the saw-tooth have been substantially uniform. However, regardless of this, for example, the base of the triangular shape near the light receiving portion 1b may be long and the base near the tip of the pointer main body 1 may be short. Also,
At the depth of the concave portion 1a1, it is shallow near the light receiving portion 1b,
Further, it may be deepened near the tip of the pointer main body 1. The lower surface of the pointer main body 1 may be formed so that such a change in shape gradually changes from the light receiving portion 1b toward the tip of the pointer main body 1. With this configuration, the light emitted from the light receiving portion 1b easily reaches the tip of the pointer main body 1, and the reflectance on the reflecting surface A is also improved. Therefore, the brightness of the pointer main body 1 is further improved.

It should be noted that in the above-described embodiments, the wrinkles may be formed near the light receiving portion on the upper surface of the pointer main body 1. By doing so, the brightness of the vicinity of the light receiving portion 1b and the tip portion of the pointer main body 1 are made uniform, and the appearance of the pointer main body is improved.

[0029]

As described above, according to the present invention, there is provided a pointer for a meter which does not spoil the appearance of the meter even when the pointer is not illuminated and illuminated with light incident from above the pointer. be able to.

[Brief description of drawings]

FIG. 1 is a partial cross-sectional overall configuration diagram of a first embodiment.

FIG. 2 is a partially enlarged view of a pointer main body.

FIG. 3 is a partially enlarged view of a pointer main body.

FIG. 4 is a view of the pointer main body and the case as seen from above in the first embodiment.

FIG. 5 is a view of a pointer main body and a case as seen from above in the second embodiment.

FIG. 6 is an operation diagram showing an operation on external light in the second embodiment.

FIG. 7 is an operation diagram showing an operation on external light in the second embodiment.

FIG. 8 is an operation diagram showing an operation on external light in the second embodiment.

FIG. 9 is a configuration diagram showing a first modification.

FIG. 10 is a configuration diagram showing a second modification.

FIG. 11 is a configuration diagram showing another example of the second modification.

FIG. 12 is a configuration diagram showing another example of the second modification.

FIG. 13 is a configuration diagram showing a third modification.

FIG. 14 is a configuration diagram showing another example of the third modified example.

FIG. 15 is a configuration diagram showing another example of the third modified example.

FIG. 16 is a configuration diagram showing a fourth modified example.

FIG. 17 is a configuration diagram showing another example of the fourth modified example.

[Explanation of symbols]

 1 Pointer body 1a Sawtooth unevenness on the lower surface of the pointer 1b Light receiving surface 2 Light emitter 4 Pointer shaft 6 Conduction lead wire 7 Conduction terminal 8 Inner end terminal 10 Inner machine 11 Case 12 Pointer mounting member 1a1 Recess 1a2 Apex 6a Conduction lead wire 20 Light guide plate

Claims (5)

[Claims] 1. A pointer for an instrument, comprising a light-receiving portion for allowing light emitted from a light-emitting body to enter the pointer body, and wherein the light-emitting portion emits light from the light-emitting portion to cause the pointer body to emit light. The pointer main body includes a lower surface having a sawtooth-shaped longitudinal section, and each sawtooth formed on the lower surface passes through a center between adjacent concave points of the sawtooth shape to form the concave point. An instrument pointer having a shape in which the apex of the saw tooth is formed at a position deviated toward the light receiving portion side from a line perpendicular to the connecting straight line. 2. A pointer for a meter, which has a light-receiving portion for allowing light emitted from a light-emitting body to enter the pointer body, and in which light emitted from the light-emitting body enters from the light-receiving portion to cause the pointer body to emit light. The pointer main body includes a lower surface having a sawtooth-shaped cross section in the longitudinal direction of the pointer main body, and in the two reflecting surfaces of each sawtooth formed on the lower surface, the inner surface is a reflecting surface facing the light receiving unit side. The angle formed by the straight line connecting the sawtooth concave points is smaller than the angle formed by the inner surface of the reflecting surface facing the tip of the pointer body and the straight line connecting the sawtooth concave points. Guideline for instruments characterized by being 3. A pointer for an instrument, which has a light receiving section for allowing light emitted from a light emitting body to enter the pointer body, and in which light emitted from the light emitting body enters from the light receiving section to cause the pointer body to emit light. The pointer main body includes a lower surface having a sawtooth-shaped longitudinal cross section, and the inner surface of the two reflective surfaces of each sawtooth formed on the lower surface faces the front end side of the pointer main body. An instrument pointer, wherein an angle formed by a reflecting surface and a straight line connecting the sawtooth-shaped concave points is substantially a right angle. 4. The light receiving section is arranged so as to face the light emitting body, and the light receiving section is formed in a convex shape toward the light emitting body side. Instrument pointer. 5. The instrument according to claim 1, wherein the light receiving portion is arranged to face a light guide plate that guides light emitted from the light emitter to the pointer main body. Guidelines.