JP4265536B2 - Pointer instrument - Google Patents

Description

  The present invention relates to a pointer instrument for changing the color of a dial display design.

In recent years, various types of pointer instruments have been proposed in order to achieve a visually appealing and novel visibility, and one of them is to change the color of the characters and scales that are the display design of the dial. Yes (see, for example, Patent Document 1).

This is a light emitting diode that emits two kinds of colors behind the dial.
Specifically, the characters and scales are transmitted and illuminated by light emitting diodes that emit one color during the day, and are transmitted and illuminated by light emitting diodes that emit the other color at night. As a result, the color of the character or scale that is the display design of the dial is changed.
JP 2001-63403 A

  However, in the above-described pointer instrument, characters and scales are simply changed in color between daytime and nighttime, for example, and it is not sufficient in terms of realizing a novel visual appearance. It is difficult not only to change the color of characters and scales, but also to realize a novel visual appearance with a change in color tone including brightness and saturation.

  The present invention has been made in view of the above-described problems, and an object of the present invention is to realize a novel and visually recognizable visibility in a pointer instrument that changes the color tone of a dial display design.

  In order to achieve the above object, the present invention employs the following technical means.

A pointer instrument according to claim 1, a dial, a first light source, a pointer that rotates along a surface of the dial and emits light from the first light source from a tip portion, and a dial And an indicator portion having a display design consisting of letters and scales, which is disposed on the outer periphery from the rotation range of the pointer on the surface side closer to the visual side than the pointer,
A light guide means for guiding light from the first light source emitted from the distal end portion of the pointer is formed on the back side of the viewing side with respect to the character and the scale, and from the first light source emitted from the distal end portion of the pointer. The light is reflected by the light guide means and is directed to the front surface side, so that the light and the scale are transmitted and illuminated by the light traveling from the back surface side to the front surface side .
The light guide means for guiding the light from the first light source emitted from the distal end portion of the pointer to the back surface of the indicator portion includes a textured surface,
When the second light source is disposed behind the dial and illuminates the indicator portion simultaneously with the first light source, and the indicator portion is transmitted and illuminated by the light from the first light source emitted from the tip of the pointer The character and the scale indicated by the pointer are transmitted and illuminated by a color in which the light from the first light source and the light from the second light source are combined and displayed in different colors depending on whether the light from the second light source is transmitted and illuminated. And

In this configuration, the characters and scales of the indicator portion are transmitted and illuminated by the light from the first light source that is emitted from the tip portion of the pointer and reflected on the back side of the characters and scales. Further, only the display design having the characters and scales in the vicinity of the indicator pointed to by the pointer is emitted and displayed by the light. Thereby, the brightness (brightness) of the display design having the characters and scales of the index portion can be changed in conjunction with the rotation of the pointer, and as a result, it is possible to realize a novel visual appearance. Moreover, in this structure, since the embossed surface used as the light guide means which guide | induces the light from the 1st light source radiate | emitted from the front-end | tip part of a pointer | guide_line to the back surface of a parameter | index part, the above-mentioned effect is efficiently realizable. Moreover, since it is an embossed surface, visibility is excellent even if the characters and scales of the indicator portion are transmitted and illuminated. Further, in this configuration, the indicator portion is displayed in different color tones when illuminated by light from the first light source emitted from the tip of the pointer and when illuminated by light from the second light source. Thereby, the color tone (brightness, hue, saturation) of the display design of the index part can be changed in conjunction with the rotation of the pointer, and the color of the light from the first light source and the light from the second light source is combined. Both the character and the scale indicated by the pointer (in the third color) are illuminated. As a result, it is possible to realize a novel visibility with a better appearance.

The pointer instrument according to claim 2 is configured such that the indicator portion and the dial are integrally formed of a resin material.

  In this configuration, since the indicator portion and the dial are integrally formed of a resin material, the above-described effects can be realized at a lower cost.

The pointer instrument according to claim 3 includes a case where the indicator portion is transmitted and illuminated by light from the first light source emitted from the distal end portion of the pointer by providing a colored layer on the distal end portion of the pointer and from the second light source. The display is made in a different color tone from that in the case of transmission illumination with light.

In this configuration, by providing a colored layer on the distal end portion of the pointer, the indicator portion is transmitted and illuminated by the light from the first light source emitted from the distal end portion of the pointer and the transmitted light by the light from the second light source. Displayed in different colors depending on the case. Thereby, the above-mentioned effect can be realized with a simple configuration.

The pointer instrument according to claim 4, wherein a colored layer is provided on a joint portion that joins the indicator portion and the dial , so that the indicator portion is transmitted by the light from the first light source emitted from the tip portion of the pointer. It is configured to display in different color tones when illuminated and when illuminated by light from the second light source.

  In this configuration, when the colored portion is provided on the joint portion, the indicator portion is transmitted and illuminated by the light from the first light source emitted from the tip portion of the pointer, and the transmitted light is illuminated by the light from the second light source. And to display in different colors. Thereby, the above-mentioned effect can be realized with a simple configuration.

The pointer instrument according to claim 5 is configured such that the first light source is disposed behind the dial, and the pointer introduces the light of the first light source from the base side of the pointer.

  In this configuration, since the pointer introduces the light of the first light source from the base side of the pointer, the above-described effects can be realized with a simple configuration.

  Hereinafter, an example in which the pointer instrument according to the present invention is applied to a combination meter 1 mounted on an automobile will be described with reference to the drawings.

(Constitution)
FIG. 1 is a front view of a combination meter 1 which is a pointer meter according to an embodiment of the present invention. The vertical direction indicated by the arrow in FIG. 1 is the same as the vertical direction of the automobile.

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

  FIG. 3 is an enlarged cross-sectional view showing the vicinity of the indicator portion 21 in FIG.

  FIG. 4 is a circuit configuration diagram illustrating an electrical circuit configuration of the combination meter 1 according to one embodiment of the present invention.

  The combination meter 1 which is a pointer instrument is arranged in front of the driver's seat of the automobile and displays various vehicle information related to the automobile. As shown in FIG. 1, the combination meter 1 according to the present embodiment includes a dial 2 that forms a speedometer for instructing the traveling speed of an automobile and displays information to allow a driver to visually recognize the speed.

  A pointer 3 to be described later rotates along the surface of the dial 2 (the surface on the left side indicated by the arrow in FIG. 2). The indicator part 21 having 21a and scale 21b is formed so as to protrude from the dial 2 to the surface side (left side shown by the arrow in FIG. 2).

  Specifically, as shown in FIG. 2, the character 21a and the scale 21b are formed on the surface of the dial base material 20 such as a transparent material, for example, a colorless and transparent polycarbonate resin (on the left side indicated by the arrow in the figure). Surface) as an opening of the background layer 22. The background layer 22 is formed by printing or hot stamping a non-translucent member (or a member with low matte translucency) on the surface of the dial base material 20.

  A colored layer 23 described later is also formed by printing or hot stamping the surface of the dial base material 20.

  The characters 21a and the scales 21b may be formed by printing or hot stamping a translucent member on the openings without using the openings of the background layer 23. Further, the background layer 22 and the colored layer 23 may be provided on the back surface of the dial base material 30 (the right surface shown by the arrow in the drawing).

  After printing or the like, the indicator portion 21 has a shape that protrudes to the surface side (left side indicated by the arrow in FIG. 2) in a substantially ring shape, and is subjected to pressure forming (a type of drawing). Thus, the indicator portion 21 is formed integrally with the dial 2 on both the inner peripheral side and the outer peripheral side. The colored layer 23 is formed over the entire circumference of the joining wall 20a, which is a joining portion that is joined to the dial 2 on the inner peripheral side of the indicator portion 21.

  As shown in FIG. 2, the dial 2 is provided with a through hole 24 through which a shaft 51 of the movement 5 described later is inserted. A reflector is provided behind the dial 2 (on the right side indicated by the arrow in FIG. 2). 8, a movement 5, a light emitting diode 6 as a first light source, a light emitting diode 7 as a second light source, and a printed board 10 are arranged. The printed circuit board 10 constitutes an electric circuit section of the combination meter 1, and the movement 5 and the light emitting diodes 6 and 7 are mounted on the printed circuit board 10.

  The movement 5 is composed of, for example, a cross coil actuator, a stepping motor, or the like, and rotates the shaft 51 by an angle corresponding to an electric signal from the outside (a signal related to the vehicle speed in the present embodiment). The shaft 51 extends to the surface side, that is, the left side indicated by the arrow in FIG. 2 through the through hole 24 of the dial 2, and the pointer 3 is fixed to the tip thereof.

  The reflector 8 guides, for example, white light from the light emitting diode 6 to the pointer 3, and guides, for example, white light from the light emitting diode 7 to the indicator portion 21 of the dial 2.

  The pointer 3 is formed of, for example, a colorless and transparent acrylic resin or the like, and the reflective layer 33 is formed on the lower surface (the right surface indicated by the arrow in FIG. 2). The reflective layer 33 is, for example, a red painted surface, and displays the pointer 3 in red by white light from the light emitting diode 6 guided by the reflector 8.

  The base 31 of the pointer 3 is provided with a reflective surface 31 a that reflects white light from the light emitting diode 6 to the tip 32 and the reflective layer 33. The pointer 3 is configured to emit white light from the light emitting diode 6 reflected by the reflecting surface 31 a from the tip end portion 32.

  A shading cap 4 is attached to the pointer 3. The light shielding cap 4 is made of, for example, a light shielding resin or metal, and prevents light from the light emitting diode 6 from directly entering the eyes of the driver.

  As shown in FIGS. 2 and 3, the indicator portion 21 of the dial 2, which is a feature of the present invention, has a character 21 a, a scale 21 b (FIG. 1), and a white light from the light emitting diode 7 guided by the reflector 8. Is configured to display light emission in white, for example, and the background layer 22 is configured to display in blue, for example.

  The colored layer 23 formed on the joining wall 20a, which is the joining portion of the indicator portion 21, is for coloring white light from the light emitting diode 6 emitted from the distal end portion 32 of the pointer 3 into red light, for example. .

  The reflector 8 has a reflecting surface 8a which is a light guide means for guiding the light colored in red to the back surface of the indicator portion 21 (the right surface indicated by the arrows in FIGS. 2 and 3). In order to obtain a high reflectance, it is colored white or silver.

  The reflective surface 8a may be a textured surface in which fine irregularities are densely formed. In this case, the reflecting surface 8 a that is a textured surface can uniformly guide the red light emitted from the tip portion 32 of the pointer 3 to the back surface of the indicator portion 21.

  The electric circuit configuration of the combination meter 1 according to the present embodiment described above will be described with reference to FIG.

  The control device 11 composed of a microcomputer or the like is always supplied with electric power from the battery 14, and the ignition switch 13 is connected so as to be able to detect its operation position (off position, on position), and detects the vehicle speed of the vehicle. The vehicle speed sensor 12, a sensor, a switch (not shown), and the like are connected so that these signals can be input.

  Further, the movement 5 driven by the control device 11 according to the detection signal from the vehicle speed sensor 12 and the light emitting diodes 6 and 7 are also connected to the control device 11.

(Operation)
When the ignition switch 13 is turned on, in FIG. 4, the control device 11 detects it and starts operation. That is, the control device 11 calculates the vehicle speed of the vehicle based on the output signal from the vehicle speed sensor 12, and drives the movement 5 so as to rotate the shaft 51 by an angle corresponding thereto. At this time, the control device 11 turns on the light emitting diodes 6 and 7.

  The white light emitted from the light-emitting diode 7 is guided to the reflector 8 according to the optical path indicated by the arrow P3 in FIGS. 2 and 3, and illuminates and transmits the indicator portion 21 of the dial 2. Thereby, the character 21a and the scale 21b are light-emitted in white.

  On the other hand, the white light of the lit light-emitting diode 6 is guided to the pointer 3 by the reflector 8 according to the optical path indicated by the arrow P1 in FIG. 2, reflected by the reflecting surface 31a and the reflecting layer 33, and emitting the pointer 3 in red. Let

  Further, the white light of the light-emitting diode 6 that has been turned on is guided to the pointer 3 by the reflector 8 according to the optical path indicated by the arrow P2 in FIGS. 2 and 3, reflected by the reflecting surface 31a, and then from the tip 32 to the colored layer 23. Through the internal space of the indicator portion 21. This incident light is colored by the colored layer 23 and enters the internal space of the indicator portion 21 as red light. The incident red light is reflected by the reflecting surface 8a of the reflector 8, and illuminates and transmits the indicator portion 21 of the dial 2.

  That is, in FIG. 1, the characters 21a and scales 21b of the indicator portion 21 pointed to by the pointer 3 are a combination of the white light of the optical path indicated by the arrow P3 and the red light of the optical path indicated by the arrow P2 in FIGS. Is displayed. On the other hand, in FIG. 1, the characters 21a and scales 21b of the indicator portion 21 not indicated by the pointer 3 are displayed in white by only white light in the optical path indicated by the arrow P3 in FIGS.

  In FIG. 2 and FIG. 3, the reason why the arrow P3 is not extended to the character 21a and the scale 21b is to avoid the fact that the arrow P3 crosses the arrow P2 and makes it difficult to see.

In this configuration, since the indicator portion 21 is transmitted and illuminated by the light from the first light source emitted from the tip portion of the pointer 3, only the display design of the indicator portion indicated by the pointer is lit and displayed. Thereby, the display color (hue) of the character 21a and the scale 21b of the indicator part 21 can be changed in conjunction with the rotation of the pointer 3, and as a result, a novel and visually recognizable visibility can be realized.

  In addition, for this reason, this can be realized at low cost without adding a new light emitting diode and without requiring special control.

  In the combination meter 1 which is a pointer instrument according to the embodiment of the present invention described above, the indicator portion 21 having the display design character 21a and the scale 21b is closer to the surface side closer to the viewing side than the dial 2 and the pointer 3. The pointer 3 is disposed on the outer periphery from the range in which the pointer 3 rotates. Furthermore, the light from the light emitting diode 6 as the first light source is emitted from the distal end portion 32 of the pointer 3, and the indicator portion 21 is transmitted and illuminated by this emitted light.

  Thereby, the display color (hue) of the character 21a and the scale 21b can be changed in conjunction with the rotation of the pointer 3, and as a result, a novel visual appearance can be realized.

  FIG. 5 is an enlarged cross-sectional view showing a first modification of FIG.

FIG. 6 is an enlarged cross-sectional view showing a second modification of FIG.

  In the first modified example, as shown in FIG. 5, a light guide portion 9 formed of a transparent acrylic resin or the like is provided behind the indicator portion 21 (on the right side indicated by the arrow in FIG. 5). Instead of the reflecting surface 8a of the reflector 8, a textured surface 9a, which is a light guiding means, is formed on the back surface of the light guiding portion 9 (the right surface shown by the arrow in FIG. 5).

  Thereby, the white light of the light emitting diode 6 from the reflecting surface 31a enters the internal space of the indicator portion 21 from the tip portion 32 through the colored layer 23 according to the optical path indicated by the arrow P2 in FIG. The incident light is colored by the coloring layer 23 and enters the light guide unit 9 as red light. The incident red light is reflected by the embossed surface 9 a of the light guide unit 9 to transmit and illuminate the indicator unit 21 of the dial 2.

  On the other hand, the white light of the lit light-emitting diode 7 is guided to the reflector 8 according to the optical path indicated by the arrow P3 in FIG. Thereby, the character 21a and the scale 21b are light-emitted in white.

  As a result, the above-described effects can be obtained even in the first modification.

  In the second modification, as shown in FIG. 6, the reflecting surface 8 a of the reflector 8 and the light guide portion 9 are not provided, and the emitting surface 32 a of the tip portion 32 of the pointer 3 is formed obliquely, and the reflecting layer of the pointer 3 is formed. 33 is used as the light guiding means. Further, since the reflective layer 33 of the pointer 3 is also used as the colored layer 23, the colored layer 23 is not provided.

  Thereby, the white light of the light emitting diode 6 from the reflecting surface 31a is colored by the reflecting layer 33 and reflected as red light to the emitting surface 32a according to the optical path indicated by the arrow P2 in FIG. The red reflected light directly reaches the back surface of the indicator portion 21 of the dial 2 (the right-hand surface indicated by the arrow in FIG. 6) from the obliquely formed emission surface 32a, and transmits the indicator portion 21 through transmission.

  On the other hand, the white light of the lit light-emitting diode 7 is guided to the reflector 8 according to the optical path indicated by the arrow P3 in FIG. Thereby, the character 21a and the scale 21b are light-emitted in white.

  As a result, the above-described effects can be obtained even in the second modification.

5 and 6, the reason why the arrow P3 is not extended to the character 21a and the scale 21b is to prevent the arrow P3 from being difficult to see when it intersects the arrow P2.

  3 and 5, the colored layer 23 may be formed on the tip 32 of the pointer 3, or the colored layer 23 may not be formed. In this case, the light from the light emitting diode 6 as the first light source is, for example, red.

  That is, in the present invention, in FIGS. 2, 3, 5, and 6, the indicator portion 21 is transmitted and illuminated with the light of the optical path indicated by the arrow P3 and when transmitted and illuminated by the light of the optical path indicated by the arrow P3. Therefore, the display may be configured to be displayed in different display colors (hue). For this reason, various configurations are conceivable.

  In addition, the indicator unit 21 is not configured to be displayed in different display colors (hues) when transmitted and illuminated with the light of the optical path indicated by the arrow P3 and when transmitted and illuminated with the light of the optical path indicated by the arrow P3. You may comprise so that it may display only with different lightness or different saturation. In other words, in the present invention, the indicator portion 21 is displayed in different hues (lightness, hue, saturation) depending on whether it is transmitted and illuminated with the light of the optical path indicated by the arrow P3 and when transmitted through the light of the optical path indicated by the arrow P3. What is necessary is just to comprise.

  Moreover, you may abbreviate | omit the light emitting diode 7 which is a 2nd light source. In this case, only the characters 21a and scales 21b of the indicator portion 21 pointed to by the pointer 3 are lit and displayed. As a result, at least the lightness (brightness) of the color tone (hue, lightness, saturation) of the character 21a and the scale 21b can be changed in conjunction with the rotation of the pointer 3, and as a result, it looks good. Innovative visibility can be realized.

  The feature of the present invention is that the indicator portion 21 is transmitted and illuminated by the light emitted from the tip portion 32 of the pointer 3, so that the light source of the light emitted from the tip portion 32 of the pointer 3 is placed behind the dial 2. There is no need to provide it. For example, it may be provided inside the pointer 3.

  Further, although a speedometer is formed as a pointer instrument, it is not necessary to be limited to these, and other instruments such as a tachometer, a fuel gauge, etc. may be replaced or added.

FIG. 1 is a front view of a combination meter 1 which is a pointer meter according to an embodiment of the present invention. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is an enlarged cross-sectional view showing the vicinity of the indicator portion 21 in FIG. FIG. 4 is a circuit configuration diagram illustrating an electrical circuit configuration of the combination meter 1 according to one embodiment of the present invention. FIG. 5 is an enlarged cross-sectional view showing a first modification of FIG. FIG. 6 is an enlarged cross-sectional view showing a second modification of FIG.

Explanation of symbols

1 Combination meter (guideline meter)
2 Dial 20 Dial base material 20a Joint wall (joint part)
21 Indicator part 21a Character (display design)
21b Scale (display design)
22 Background layer 23 Colored layer 24 Through-hole 3 Pointer 31 Base 31a Reflective surface 32 Tip 32a Emission surface 33 Reflective layer (light guide means)
4 Shading cap 5 Movement 51 Shaft 6 Light emitting diode (first light source)
7 Light-emitting diode (second light source)
8 Reflector 8a Reflecting surface (light guiding means)
9 Light guide portion 9a Textured surface (light guide means)
DESCRIPTION OF SYMBOLS 10 Printed circuit board 11 Control apparatus 12 Vehicle speed sensor 13 Ignition switch 14 Battery

Claims (5)

Dial,
A first light source;
A pointer having a structure that rotates along the surface of the dial and emits light from the first light source from a tip portion;
The dial and the surface side closer to the viewing side than the pointer, the indicator is disposed on the outer periphery from the range in which the pointer rotates, and includes an indicator portion having a display design composed of characters and scales,
A light guide means for guiding light from the first light source emitted from the tip portion of the pointer is formed on the back side of the viewing side with respect to the characters and scales,
The light from the first light source emitted from the tip portion of the pointer is reflected by the light guide means and travels toward the front surface side. The scale is illuminated ,
The light guide means for guiding the light from the first light source emitted from the tip end portion of the pointer to the back surface of the indicator portion includes a textured surface,
A second light source disposed behind the dial and illuminating and transmitting the indicator portion simultaneously with the first light source;
The indicator portion is displayed in a different color tone when illuminated by light from the first light source emitted from the tip of the pointer and when illuminated by light from the second light source, and A pointer instrument characterized in that the letters and scales indicated by the pointer in a color in which the light from the first light source and the light from the second light source are combined are transmitted and illuminated. The pointer instrument according to claim 1, wherein the indicator portion and the dial are integrally formed of a resin material . By providing a colored layer on the tip portion of the pointer, the indicator portion is transmitted and illuminated by the light from the first light source emitted from the tip portion of the pointer and the light from the second light source. The pointer instrument according to claim 1, wherein the pointer instrument is displayed in a color tone different from that in the case where the light is transmitted and illuminated . By providing a colored layer on the joint portion that joins the indicator portion and the dial, the indicator portion is transmitted and illuminated by the light from the first light source emitted from the tip portion of the pointer. 3. The pointer instrument according to claim 2 , wherein the pointer instrument is displayed in a color tone different from that in the case where the light is transmitted and illuminated by the light from the second light source . The first light source is disposed behind the dial;
The pointer instrument according to any one of claims 1 to 4, wherein the pointer introduces light of the first light source from a base side of the pointer.

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