JP2008002962A - Instrument device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an instrument device equipped with an indication plate in which a display design with an enhanced stereoscopic effect to be visually observed is formed. <P>SOLUTION: The instrument device 1 is provided with the indication plate 2; a protrusion part 22 formed in a front surface on the visual observation side of the indication plate 2, in such a way as to protrude from the front surface on the visual observation side to the visual observation side and having both a reflecting part 24 and a light-transmitting part 25; a first light source 52 for illuminating the reflecting part 24 by reflection; a second light source 53 for illuminating the light-transmitting part 25 by transmission; and a photoconductive member 3 for guiding the light emitted by the first light source 52 to the reflecting part 24. The reflecting part 24 is formed, in such a way as to reflect light emitted by the first light source 52 and guided by the photoconductive member 3, to the visual observation side; the light-transmitting part 25 is formed, in such a way as to transmit the light emitted by the second light source 53, from the back side of the indication plate 2 to the visual observation side, and the light emitted by the first light source 52 and reflected by the reflecting part 24 to the visual observation side, and the light which the second light source 53 emitted, transmitted through the light-transmitting part 25 toward the visual observation side are visually observed as the display design. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an instrument device including a display board on which a display design having a three-dimensional effect is formed.

  In recent years, in order to enhance the appearance of an instrument device, various ideas have been proposed for increasing the stereoscopic effect of the display design for display designs such as scales and characters formed on the display board of the instrument device.

  For example, a scale is formed as a convex portion on a translucent substrate, a metallic display layer is formed on the back side of the convex portion, and light is transmitted in a gradation shape on the outer periphery of the convex portion (the emission intensity is directed toward the outer peripheral side). A display panel is disclosed in which a light-transmitting portion (formed so as to gradually decrease) is formed, and a background layer is formed around the light-transmitting portion (see Patent Document 1).

  This is to make the translucent part emit light in gradation when transmitting the scale from the back of the display board, thereby enhancing the stereoscopic effect between the convex part and the background layer. It is.

  The inventor also has a ring-shaped light guide formed on the display panel, a light source that allows light to enter the light guide, and light emitted from the light source provided in the light guide to the viewing side. The instrument apparatus provided with the reflective part to perform is proposed (refer patent document 2).

This is to make the light emitted from the light source reflected by the reflecting part to the viewing side visible as a display design, and as a result, the reflecting part of the light guide located closer to the viewing side than the display board is used as a reference. As shown in FIG.
JP 2003-223124 A JP 2003-302262 A

  However, in Patent Document 1, when the light source is turned on and the scale is transmitted and illuminated from behind the display plate, the translucent part formed on the outer periphery of the convex part is two-dimensionally luminescent although it is in a gradation shape. Limited to. For this reason, there is a certain limit in terms of making this scale visible in three dimensions.

  On the other hand, in patent document 2, a reflection part makes the light which the light source reflected to the viewing side emitted look visually as a display design. For this reason, the reflection part of the light guide located closer to the viewing side than the display plate can be viewed stereoscopically with the display plate as a reference. However, since only the reflected light from the reflecting portion is visually recognized as a display design, there is a certain limit in that the display design is visually observed in three dimensions.

  This invention is made | formed in view of the said problem, and it aims at providing the measuring device provided with the display board in which the display design which can be visually observed more three-dimensionally was formed.

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

  The instrument device according to claim 1, a display plate, a convex portion formed on the viewing side front surface of the display plate so as to protrude from the viewing side front surface to the viewing side, and having a reflecting portion and a translucent portion, and a reflecting portion A first light source that reflects and illuminates the light, a second light source that transmits and illuminates the translucent part, and a light guide that guides the light emitted from the first light source to the reflective part. The reflective part is guided by the light guide. The light emitted from the first light source is formed to reflect to the viewing side, and the translucent part is formed to transmit the light emitted from the second light source from the back side of the display plate to the viewing side. The light emitted from the first light source reflected to the viewing side and the light emitted from the second light source that has passed through the translucent part toward the viewing side are configured to be viewed as a display design. And

  In this structure, the convex part formed so that it may protrude from the visual side front surface to the visual side at the visual side front surface of the display board has a reflective part and a translucent part, and the reflective part reflected to the visual side. And the light emitted from the second light source that has passed through the light transmitting part toward the viewing side are visually recognized as a display design. Thereby, since both a reflection part and a translucent part are located in the visual recognition side rather than the visual side front surface of a display board, both can be visually observed three-dimensionally on the basis of the visual side front surface of a display board. Furthermore, in order to make both the reflected light from the reflective part and the transmitted light from the translucent part visible as a display design, the display design can be viewed more three-dimensionally than when only reflected light is viewed as a display design. Can be made.

  The instrument device according to claim 2 is configured such that the translucent part that transmits the light emitted from the second light source is viewed in a color tone different from that of the reflective part that reflects the light emitted from the first light source. It is characterized by being.

  In this configuration, since the translucent part is viewed with a color tone (at least one of brightness, hue, and saturation) different from that of the reflective part, the display design can be viewed more three-dimensionally.

  The instrument device according to claim 3 is characterized in that the reflection portion is formed on the side surface of the convex portion, and the light transmitting portion is formed on the top surface of the convex portion.

  Even with this configuration, the above-described effects can be obtained.

  The instrument device according to claim 4 is characterized in that the reflection portion is formed so that the reflection intensity of the reflected light from the reflection portion gradually increases toward the top surface.

  Thereby, a gradation effect is obtained from the reflected light on the side surface of the convex portion, and the display design can be viewed more three-dimensionally.

  The instrument device according to claim 5 is characterized in that the display plate and the convex portion are integrally formed by resin molding.

  Thereby, the above-mentioned effect can be acquired at low cost.

  The instrument device according to claim 6 is characterized in that the display plate and the light guide are integrally formed by resin molding.

  Thereby, the above-mentioned effect can be acquired at low cost.

  The instrument device according to claim 7 is provided with a pointer that rotates along the viewing-side front surface of the display board, and the reflected light from the reflecting portion and the transmitted light from the light-transmitting portion are visually observed as a scale indicated by the pointer. It is comprised so that it may be comprised.

  Even with this configuration, the above-described effects can be obtained.

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

(First embodiment)
FIG. 1 is a front view of a combination meter 1 which is an instrument device according to a first embodiment of the present invention.

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

  FIG. 3 is an enlarged sectional view taken along line III-III in FIG.

  FIG. 4 is an explanatory view showing a manufacturing process of the dial 2 that is the display plate and the light guide ring 3 that is the light guide shown in FIG.

  FIG. 5 is a circuit configuration diagram illustrating an electrical circuit configuration of the combination meter 1 according to the first embodiment of the present invention.

  A combination meter 1 that is an instrument device is arranged in front of a driver's seat of an automobile and displays various information related to the automobile. In the first embodiment of the present invention, as shown in FIG. Configure the total. The combination meter 1 includes a dial 2 that is a display plate for displaying a traveling speed and allowing the driver to visually check the pointer, and a pointer 4 that rotates along the front side of the dial 2 on the viewing side (the upper surface in FIG. 2). With.

  The dial 2 is composed of a substrate 20 (FIG. 3) formed from a translucent material, for example, a plate material such as a colorless and transparent polycarbonate resin, and the dial 2 indicates a character 21 and a pointer 4. A convex portion 22 to be visually observed as a scale and a complementary scale 23 that complements the scale by the convex portion 22 are formed.

  The character 21 and the scale 23 are formed as an opening (not shown) of the background layer 26 (FIG. 3). For example, a light-transmitting white print layer (not shown) is formed on the front side of the substrate 20 on the viewing side (the upper surface in FIGS. 2 and 3), and the light-transmitting black background layer is formed on the upper surface of the print layer. 26 is formed. That is, the character 21 and the scale 23 are formed as a white printed layer that can be seen through the opening of the background layer 26.

  On the other hand, as shown in FIGS. 2 and 3, the convex portion 22 is formed on the viewing side front surface (upper surface in FIGS. 2 and 3) of the dial 2 from the viewing side front surface to the viewing side (upper side in FIGS. 2 and 3). ), And includes a reflection layer 24 that is a reflection portion and a light transmission layer 25 that is a light transmission portion.

  The reflection layer 24 is formed on the side surface 24a of the convex portion 22, and reflects light emitted from a light emitting diode 52, which is a first light source, which will be described later, guided by a light guide ring 3, which is a light guide, which will be described later. Formed as follows. The translucent layer 25 is formed on the top surface 25a of the convex portion 22, and the light emitted from the light emitting diode 53 as a second light source to be described later is viewed from the back side of the dial 2 (the lower side in FIGS. 2 and 3). It is formed so as to transmit to the side.

  The light emitted from the light emitting diode 52 reflected by the reflective layer 24 toward the viewing side and the light emitted from the light emitting diode 53 transmitted through the light transmissive layer 25 toward the viewing side are configured to be viewed as a scale. .

  The translucent layer 25 that transmits the light emitted from the light emitting diode 53 is viewed with a color tone (at least one of brightness, hue, and saturation) different from the reflective layer 24 that reflects the light emitted from the light emitting diode 52. Configured. For example, the light-emitting diodes 52 and 53 are used as a light source that emits white light, the reflective layer 24 is a gray reflective layer, and the light-transmitting layer 25 is a white light-transmitting layer. Thereby, the translucent layer 25 is visually observed with higher brightness than the reflective layer 24.

  The light guide ring 3 is formed on the front side of the dial 2 on the viewing side so as to cover the convex portion 22 and the complementary scale 23 in a “C” shape as shown in FIG. 1. The light guide ring 3 is formed of a colorless and transparent acrylic resin or the like, and includes an incident surface 31 on which light emitted from the light emitting diode 52 is incident.

  The light emitting diode 52 is disposed on the front side of the dial 2 on the viewing side so that the light emitted from the light emitting diode 52 can be incident on the incident surface 31 of the light guide ring 3. Further, the light emitting diodes 52 are arranged on both the left and right sides so that light from the light emitting diodes 52 is incident along the optical path P11 from both the left and right sides in FIG. The combination meter 1 is configured to cover the viewing side with the design plate 8 so that the incident surface 31 and the light emitting diode 52 of the light guide ring 3 are not visually observed.

  As shown in FIG. 4, the dial 2 and the convex part 22, and the dial 2 and the light guide ring 3 are integrally formed by resin molding. Specifically, as shown in FIG. 4A, the reflective layer 24, the translucent layer 25, the background layer 26, and the like are formed on the upper surface (FIG. 4A) of the flat substrate 20 by screen printing, hot stamping, or the like. Upper surface).

  The one shown in FIG. 4A is subjected to drawing (pressure forming or the like) to form a convex portion 22 that protrudes to the viewing side (upward in FIG. 4B) as shown in FIG. 4B.

  4 (b) is set in a mold (not shown), and an acrylic resin material heated and melted from above is injected in FIG. 4 (b). Thereby, the light guide ring 3 is formed in the shape which covers the convex part 22 as shown in FIG.4 (c).

  As shown in FIG. 2, the dial 2 is provided with a through hole 27 through which a shaft 51 of the movement 5 described later is inserted, and behind the dial 2 (the lower side indicated by the arrow in FIG. 2) A movement 41, light emitting diodes 51 and 53, a case 6, and a printed circuit board 7 are arranged. The printed circuit board 7 forms an electric circuit part of the speedometer, and the movement 41 and the light emitting diodes 51 and 53 are mounted on the printed circuit board 7. The light emitting diode 52 is electrically connected to the printed circuit board 7 by an electric wiring (not shown).

  The movement 41 is composed of, for example, a cross coil actuator or a stepping motor, and rotates the shaft 42 by an angle corresponding to an external electric signal (vehicle speed signal in the present embodiment). The shaft 42 extends through the through hole 27 of the dial 2 to the viewing side, that is, the upper side indicated by the arrow in FIG. 2, and the pointer 4 is fixed to the tip thereof.

  The case 6 guides the white light of the light emitting diode 51 to the pointer 4, and guides the white light of the light emitting diode 53 to the dial 2 and the convex portion 22 of the dial 2.

  The pointer 4 is formed of a light-transmitting material such as acrylic resin, and has a red layer on the front surface of the pointer 4 so that the white light of the light emitting diode 51 incident on the pointer 4 is emitted and displayed in red. Composed.

  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 9 composed of a microcomputer or the like is always supplied with electric power from the battery 12, and the ignition switch 11 is connected so as to detect its operation position (off position, on position). Further, a vehicle speed sensor 10 for detecting the traveling speed of the automobile is connected to the control device 9 so that the signal can be input.

  Further, the movement 41 and the light emitting diodes 51 to 53 that are driven by the control device 9 according to the detection signal from the vehicle speed sensor 10 are also connected to the control device 9.

  Below, the action | operation of the combination meter 1 by this embodiment is demonstrated.

  When the ignition switch 11 is turned on by the driver, in FIG. 5, the control device 9 detects that and starts operation, lights up the light emitting diodes 51-53, and drives the movement 41. That is, the control device 9 calculates the vehicle speed of the vehicle based on the output signal from the speed sensor 10 and drives the movement 41 so as to rotate the shaft 42 by an angle corresponding to the calculated vehicle speed.

  The white light emitted from the light-emitting diode 51 is guided into the pointer 4 by the case 6 in FIG. Further, a part of the white light of the light-emitting diode 53 turned on is guided to the dial 2 by the case 6 according to the optical path P3 of FIG. 2, and the character 21 and the complementary scale 23 are white with the black background layer 26 as the background. Press to display the light.

  On the other hand, the white light emitted from the light-emitting diode 52 is guided into the light guide ring 3 from the incident surface 31 of the light guide ring 3 according to the optical path P11 in FIGS. The white light guided into the light guide ring 3 is reflected as gray light by the reflective layer 24 according to the optical path P12 in FIG. The gray light reflected by the reflective layer 24 is emitted to the viewing side through the light guide ring 3.

  The remaining white light of the light-emitting diode 53 that is turned on is guided to the convex portion 22 of the dial 2 by the case 6 according to the optical path P2 in FIGS. 2 and 3, and illuminates the light transmitting layer 25 of the convex portion 22. . The white light that has been transmitted through the light transmitting layer 25 is emitted to the viewing side through the light guide ring 3.

  As described above, the light emitted from the light emitting diode 52 reflected by the reflective layer 24 toward the viewing side and the light emitted from the light emitting diode 53 transmitted through the light transmissive layer 25 toward the viewing side are viewed as a scale. . Thereby, both the reflective layer 24 and the translucent layer 25 can be viewed stereoscopically with the black background layer 26 as a reference.

  Furthermore, since both the reflected light from the reflective layer 24 and the transmitted light from the translucent layer 25 are viewed as a scale, the scale is viewed more three-dimensionally than when only the reflected light is viewed as a scale. be able to.

  The reflected light from the reflective layer 24 is gray light, the transmitted light from the light transmissive layer 25 is white light, and the background layer 26 that is the background of the light is visually observed in black. For this reason, the reflective layer 24, the translucent layer 25, and the background layer 26 are visually recognized as shaded scales due to the difference in brightness, and the scales can be viewed more stereoscopically.

  The light-transmitting layer 25 that transmits the light emitted from the light-emitting diode 53 is visually observed with a different hue and different saturation instead of the different lightness from the reflective layer 24 that reflects the light emitted from the light-emitting diode 52. It is also possible to configure such that the brightness, hue, and saturation are all different.

  FIG. 6 is an explanatory diagram showing a modification of FIG.

  As shown in FIG. 6, the dial 2, the convex part 22, and the light guide ring 3 can be formed by a method different from the above example.

  Specifically, as shown in FIG. 6A, the reflective layer 24, the light transmitting layer 25, the background layer 26, and the like are formed on the upper surface (FIG. 6A) of the flat substrate 20 by screen printing or hot stamping. Upper surface).

  The material shown in FIG. 6A is set in a mold (not shown), and an acrylic resin material heated and melted from the lower side in FIG. 6A is injected under pressure. Thereby, as shown in FIG. 6B, a convex portion 22 protruding to the viewing side (upward in FIG. 6B) is formed, and a colorless and transparent light guide base 30 is formed.

  The one shown in FIG. 6B is set in a mold (not shown) different from the above-described mold, and in FIG. 6B, an acrylic resin material heated and melted from above is injected. Thereby, the light guide ring 3 is formed in a shape covering the convex portion 22 as shown in FIG.

  Although this modification is different from the above example in that the light guide base 30 is formed, since the light guide base 30 is colorless and transparent, the same effect as in the above case can be obtained.

(Second Embodiment)
FIG. 7 is a front view of a combination meter 1 which is an instrument device according to the second embodiment of the present invention.

  8 is an enlarged sectional view taken along line VIII-VIII in FIG.

  In the second embodiment, as shown in FIG. 7, the reflective layer 24 b is formed on a side surface different from the reflective layer 24 instead of the reflective layer 24 shown in FIG. 1. The reflection layer 24b is formed so as to reflect the light emitted from the light emitting diode 53 as the first light source to the viewing side (upper side in FIG. 8).

  The light guide ring 3 extends from the viewing side to the back side (lower side in FIG. 8) of the dial 2 through the opening 28 of the dial 2, and the incident surface 31 on which light emitted from the light emitting diode 53 is incident on the tip. Is provided. In addition, the light guide ring 3 includes a reflective surface 32 that reflects light from the light emitting diode 53 guided into the light guide ring 3 to the reflective layer 24b.

  Thereby, a part of the white light of the light-emitting diode 53 turned on is guided to the dial 2 by the case 6 according to the optical path P3 of FIG. 8, and the character 21 and the complementary scale 23 are set with the black background layer 26 as the background. Lights up in white.

  Another part of the white light emitted from the light-emitting diode 53 is guided into the light guide ring 3 from the incident surface 31 of the light guide ring 3 according to the optical path P1 in FIG. The white light guided into the light guide ring 3 reaches the reflection layer 24b by the reflection surface 32, and is reflected as gray light by the reflection layer 24b. The gray light reflected by the reflective layer 24b is emitted to the viewing side (upper side in FIG. 8) through the light guide ring 3.

  The remaining white light of the light-emitting diode 53 that is turned on is guided to the convex portion 22 of the dial 2 by the case 6 according to the optical path P2 in FIG. The white light that has been transmitted through the light transmitting layer 25 is emitted to the viewing side through the light guide ring 3.

  As a result, the same effect as in the above-described embodiment can be obtained.

  In addition, in the example mentioned above, although it comprised so that the convex part 22 might be visually recognized as a scale, it can also be comprised so that it may be visually recognized as display designs, such as a character.

  Further, the reflection layers 24 and 24b can be formed so that the reflection intensity of the reflected light from the reflection layers 24 and 24b gradually increases toward the top surface 25a. Thereby, a gradation effect is acquired from the reflected light of the side surface 24a of the convex part 22, and display designs, such as a scale, can be visually observed more three-dimensionally.

  The combination meter 1 which is the instrument device according to the present invention described above is formed of a dial 2 which is a display plate and a viewing side front surface of the dial 2 so as to protrude from the viewing side front side to the viewing side and is a reflection part. The convex part 22 which has the reflective layers 24 and 24b and the translucent layer 25 which is a translucent part, the light emitting diodes 52 and 53 which are the first light sources for reflecting and illuminating the reflective layers 24 and 24b, and the translucent layer 25 are transmitted. A light emitting diode 53 as a second light source for illuminating and a light guide ring 3 as a light guide for guiding the light emitted from the light emitting diodes 52 and 53 to the reflecting layers 24 and 24b. The light emitted from the light emitting diodes 52 and 53 guided by the light ring 3 is formed so as to reflect to the viewing side, and the translucent layer 25 transmits the light emitted from the light emitting diode 53 from the back side of the dial 2 to the viewing side. Let it penetrate The light emitted from the light-emitting diodes 52 and 53 reflected by the reflective layers 24 and 24b toward the viewing side and the light emitted from the light-emitting diode 53 transmitted through the light-transmitting layer 25 toward the viewing side are display designs. It is comprised so that it may be visually recognized as a certain scale.

  Thereby, a display design can be more visually observed.

  Note that the present invention is not limited to the above-described example, and combinations thereof and other various modifications are conceivable.

FIG. 1 is a front view of a combination meter 1 which is an instrument device according to a first embodiment of the present invention. 2 is a cross-sectional view taken along line II-II in FIG. FIG. 3 is an enlarged sectional view taken along line III-III in FIG. FIG. 4 is an explanatory view showing a manufacturing process of the dial 2 that is the display plate and the light guide ring 3 that is the light guide shown in FIG. FIG. 5 is a circuit configuration diagram illustrating an electrical circuit configuration of the combination meter 1 according to the first embodiment of the present invention. FIG. 6 is an explanatory diagram showing a modification of FIG. FIG. 7 is a front view of a combination meter 1 which is an instrument device according to the second embodiment of the present invention. 8 is an enlarged sectional view taken along line VIII-VIII in FIG.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Combination meter (instrument apparatus), 2 Dial (display board), 20 Substrate 21 Character, 22 Convex part (display design, scale), 23 Complementary scale 24, 24b Reflective layer (reflective part), 24a Side surface 25 Translucent layer (Translucent portion), 25a top surface, 26 background layer, 27 through hole, 28 opening 3 light guide ring (light guide), 30 translucent base, 31 incident surface, 32 reflective surface 4 pointer, 41 movement, 42 shaft, 51 light emitting diode 52 light emitting diode (first light source), 53 light emitting diode (first light source, second light source)
6 Case, 7 Printed circuit board, 8 Design board, 9 Control device, 10 Speed sensor, 11 Ignition switch, 12 Battery

Claims (7)

A display board;
A convex portion formed on the viewing side front surface of the display plate so as to protrude from the viewing side front surface to the viewing side, and having a reflective portion and a light transmitting portion,
A first light source that reflects and illuminates the reflecting portion;
A second light source that transmits and illuminates the light transmitting portion;
A light guide that guides the light emitted from the first light source to the reflecting portion;
The reflection part is formed so as to reflect the light emitted from the first light source guided by the light guide to the viewing side;
The translucent part is formed to transmit light emitted from the second light source from the back side of the display plate to the viewing side;
The light emitted from the first light source reflected by the reflecting portion toward the viewing side and the light emitted from the second light source transmitted through the light transmitting portion toward the viewing side are viewed as a display design. It is comprised as follows. The instrument apparatus characterized by the above-mentioned.   The translucent part that transmits the light emitted from the second light source is configured to be viewed with a color tone different from that of the reflective part that reflects the light emitted from the first light source. The instrument device according to claim 1. The reflective portion is formed on a side surface of the convex portion,
The instrument device according to claim 1, wherein the translucent part is formed on a top surface of the convex part.   The instrument device according to claim 3, wherein the reflection portion is formed such that the reflection intensity of the reflected light from the reflection portion gradually increases toward the top surface.   The instrument device according to any one of claims 1 to 4, wherein the display plate and the convex portion are integrally formed by resin molding.   The instrument device according to claim 1, wherein the display plate and the light guide are integrally formed by resin molding. A pointer that rotates along the front side of the viewing side of the display plate;
7. The structure according to claim 1, wherein the reflected light from the reflecting portion and the transmitted light from the light transmitting portion are configured to be viewed as a scale indicated by the pointer. The instrument device according to claim 1.

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