JP2006194636A - Pointer measuring meter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a pointer measuring meter that can prevent a nonuniform emission of light in a width direction and has a decorative section of bright and visible illumination. <P>SOLUTION: The pointer measuring meter 1 comprises: a dial 2 in which display designs 21, 22 are formed; a pointer 4 that is rotated along the front of the dial 2; the decorative section 3 for forming the outer frame of the display designs 21, 22; and a light source 7 for performing the transmission illumination of the decorative section 3. The decorative section 3 is arranged at the outer periphery of the display designs 21, 22, and the light source 7 is arranged at the rear side of the decorative section 3. The decorative section 3 has a light transmission section 32a that has a width narrower than the decorative section 3 and has the outer frame shape of the display designs, thus preventing the nonuniform emission of light in the width direction of the decorative section 3. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a pointer instrument having a decorative portion.

  In recent years, various types of pointer instruments have been proposed in order to provide a fresh and beautiful display. One of them is a pointer that has a decorative part that forms an outer frame of the display design of the dial and displays it in a luminous manner. Instrument is known.

  For example, a pointer instrument is disclosed in which light from a plurality of light sources is incident on a light guide that is a decorative portion, and the light guide is uniformly emitted in the longitudinal direction (the direction of the outer frame) (patent) Reference 1).

  Specifically, the pointer instrument includes a dial having a display design, a pointer that rotates along the front surface of the dial, a light guide that is a decorative portion disposed on the surface of the dial, and a dial. And a light adjustment unit formed on the dial.

The display design includes numbers and scales to be indicated by the pointer, and the light guide is a decorative portion that forms an outer frame of the display design. The light source illuminates the light guide, and the light adjusting unit is an intensity of light guided to the light guide so that the light guide uniformly emits light in the longitudinal direction (the direction of the outer frame of the display design). Is to adjust.
JP 2002-228493 A

  The pointer instrument disclosed in Patent Document 1 emits the light guide uniformly in the longitudinal direction (the direction of the outer frame of the display design), but causes the light guide to emit light uniformly in the width direction. It is not a thing. For this reason, the light emission spot arises in this width direction, and there exists a possibility of deteriorating the appearance of the light guide which is a decoration part.

  This invention is made | formed in view of the said point, and it aims at providing the pointer instrument provided with the decorating part which can prevent the nonuniform light emission of the width direction.

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

  The pointer instrument according to claim 1 forms a dial on which a display design is formed, a pointer that rotates along the front surface of the dial, and an outer frame of the display design that is disposed on an outer periphery of the display design. A decorative portion and a light source that is disposed behind the decorative portion and illuminates the decorative portion, and the decorative portion has a width narrower than the width of the decorative portion and has an outer frame shape of the display design It is set as the structure provided with a translucent part.

  In this structure, since the translucent part of the decoration part has a width narrower than the width of the decoration part and the outer frame shape of the display design, non-uniform light emission in the width direction of the decoration part due to light from the light source. Can be prevented.

  The pointer instrument according to claim 2 is provided with a light guide unit disposed behind the decoration unit and configured to guide light from the light source to the translucent unit, and the light guide unit is guided to a position facing the translucent unit. It is set as the structure provided with the light emission part which emits the light from the light source which injected into the light means to a translucent part.

  In this configuration, since the light guide unit includes the light emitting part that emits light from the light source to the light transmitting part at a position facing the light transmitting part, the light emission luminance of the light transmitting part of the decoration part can be increased. Thereby, in addition to the above-mentioned effect, the translucent part of the decorating part can be lit and displayed with higher contrast to the display design of the dial and the background part.

  The pointer instrument according to claim 3 is configured such that the light emitting portion is a reflecting surface that reflects the light from the light source incident on the light guiding means to the light transmitting portion.

  In this structure, since the light emission part is a reflective surface, the above-described effects can be obtained at low cost.

  The pointer instrument according to claim 4 is configured such that the translucent portion is disposed on the front side of the viewing side from the dial.

  In this configuration, since the translucent part is arranged on the front side of the viewing side from the dial, a stereoscopic effect is obtained in addition to the above-described effect, and the appearance can be further improved.

  The pointer instrument according to claim 5 is configured such that the light emitting portion is disposed on the front side of the viewing side from the dial and on the back side of the light transmitting portion.

  In this structure, since the light emission part is arrange | positioned in the front side by the side of visual recognition from a dial, and the back surface side of a translucent part, the light emission luminance of the translucent part of a decorating part can be raised. Thereby, in addition to the above-mentioned three-dimensional effect, the translucent part of the decorating part can be lit and displayed with higher contrast with respect to the display design of the dial and the background part.

  The pointer instrument according to claim 6 is configured such that the translucent portion illuminates the display design.

  In this configuration, since the translucent part illuminates the display design, the appearance can be further improved in addition to the above-described effects.

  The pointer instrument according to claim 7 is configured such that the outer frame shape of the display design is a substantially ring shape.

  In this configuration, the translucent portion has a substantially ring shape, and the above-described effects can be obtained with this simple shape.

  The pointer instrument according to claim 8, wherein the decorative portion includes a decorative display layer on the surface and a non-transparent layer on the back side of the decorative display layer, the decorative display layer is translucent and displays. It has a display color different from the background part of the design, the opaque layer has an opening as the transparent part, and the decorative part displays the shape of the transparent part by turning on the light source. The decorative display layer is configured to be displayed in a display color different from the background color of the display design by turning off the light source.

  In this configuration, when the light source behind the decorative portion is turned off, the decorative display layer of the decorative portion is displayed in a display color different from the background portion of the display design. For this reason, when the light source is turned off, the opening of the decoration part is not visually observed, and the decoration function as the decoration part is not impaired. Thereby, in addition to the above-mentioned effect when the light source is turned on, the decoration function as the decoration portion can be exhibited even when the light source is turned off.

  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 that is a pointer instrument for a vehicle 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 the line II-II in FIG.

  FIG. 3 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 information related to the automobile. As shown in FIG. 1, the combination meter 1 according to the present embodiment constitutes a speedometer that displays a traveling speed.

  The combination meter 1 includes a dial 2 for displaying information and allowing the driver to visually recognize the display. Characters (including numerals) 21 and scales 22 are formed on the dial 2 as display designs.

  As shown in FIG. 2, the character 21 and the scale 22 are surfaces of a dial base material 20 such as a translucent material, for example, a translucent polycarbonate resin (upper surface indicated by an arrow in the figure). Are provided as openings in the background layer 23, which is the background. The background layer 23 prints or hot stamps a non-translucent member (or a member with low matte translucency) on the surface of the dial base material 20 (the upper surface indicated by the arrow in the figure). It is formed by applying.

  Note that the letters 21 and the scales 22 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 23 may be provided on the back surface of the dial base material 30 (the lower surface indicated by the arrow in the drawing).

  On the surface of the dial 2, a decorative portion 3 that forms these outer frames is provided on the outer periphery of the character 21 and the scale 22. In the decorative portion 3 which is a feature of the present invention, the opaque layer 32 and the transparent layer 31 which is a decorative display layer are arranged in this order on the surface of the decorative base material 30 (the upper side indicated by the arrow in FIG. 2). Is formed by performing vapor deposition, plating, or the like.

  As shown in FIG. 1, the opaque layer 32 has an opening 32 a that is a transparent portion having a substantially ring shape that is an outer frame shape of the characters 21 and the scales 22. The decorative base material 30 is formed in a ring shape with a shape protruding from the translucent acrylonitrile / butadiene / styrene (ABS) resin or the like to the surface side (the upper side indicated by the arrow in FIG. 2). The decoration part 3 is fixed to the dial 2 by adhesion or hooking.

  The dial 2 is provided with a first through hole 24 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 reflector 8, a light guide A light guide unit 9 as a means, a movement 5, a light emitting diode 6, a light emitting diode 7 as a light source, and a printed board 11 are arranged. The printed circuit board 11 forms an electric circuit part of the combination meter 1, and the movement 5 and the light emitting diodes 6 and 7 are mounted on the printed circuit board 11.

  The movement 5 is constituted by, for example, a cross coil actuator or a stepping motor, and rotates the shaft 51 by an angle corresponding to an external electric signal (vehicle speed signal in the present embodiment). The shaft 51 extends to the front side (the upper side indicated by the arrow in the drawing) through the first through hole 24 of the dial 2, and the pointer 4 is fixed to the tip thereof.

  The reflector 8 guides, for example, white light from the light-emitting diode 6 to the pointer 4, and the pointer 4 is formed so as to be lit and displayed in red, for example, by the white light from the light-emitting diode 6 guided to the reflector 8. Is done. The pointer 4 is formed so as to be displayed in red, for example, when the light emitting diode 6 is turned off.

  A light shielding cap 41 is attached to the pointer 4. The light shielding cap 41 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.

  The light guide unit 9 guides, for example, white light from the light emitting diode 7 that is a light source to the dial 2 and the decoration unit 3. With this guided light, the decorative portion 3 is configured to emit light and display as described later, and the character 21 and the scale 22 are configured to emit and display white light, for example.

  In this case, the dial 2 is configured such that when the light-emitting diode 7 is turned off, the letters 21 and the scale 22 are displayed in white by white light such as sunlight, and the background layer 23 is displayed in blue, for example. .

  The light guide unit 9 is formed of a translucent acrylic resin or the like, and includes a first reflection surface 91, a second reflection surface 92 that is a light emitting unit, and a diffuse reflection layer 93. The first reflection surface 91 is a reflection surface that reflects the white light from the light emitting diode 7 incident on the light guide unit 9 to the second reflection surface 92 and the diffuse reflection layer 93.

  The diffuse reflection layer 93 is formed with a textured surface or a painted surface, for example, and guides the reflected light from the first reflection surface 91 to the characters 21 and scales 22 of the dial 2 so that they are uniformly transmitted and illuminated. It is.

  The second reflecting surface 92 is a reflecting surface that reflects the reflected light from the first reflecting surface 91 to the opening 32 a of the light-impermeable layer 32 of the decorating unit 3. In the dial 2, the second through hole 25 for allowing the reflected light from the second reflecting surface 92 to reach the opening 32 a is formed between the second reflecting surface 92 and the decoration portion 3. Alternatively, the second through-hole 25 may be in a state where the background layer 23 is not formed on the dial base material 20 having translucency, or a translucent layer (or light diffusion layer) is formed at this portion. Also good.

  The second through-hole 25 is formed along the decorative portion 3 on substantially the entire circumference, but the second through-hole is partially provided so that the dial 2 is not separated from the outside and the inside of the second through-hole 25. 25 may not be formed, or the separated outer dial may be supported by a design plate (reflecting plate) (not shown).

  In the decorative part 3 which is a feature of the present invention, the opaque layer 32 having the opening 32a is subjected to vapor deposition or plating treatment on the surface of the decorative base material 30 by masking chromium (Cr) or the like. Thus, a light-opaque state is formed.

  On this light-impermeable layer 32, the light-transmissive layer 31 is formed in a light-transmitting state by depositing aluminum (Al) or the like, or performing a plating process or the like. That is, the light transmitting layer 31 is formed in the opening portion 32a of the non-light transmitting layer 32, and the light transmitting portion is formed by the light transmitting layer 31 formed in the opening portion 32a.

  As shown in FIG. 1, the opening 32 a has a substantially ring shape that is formed narrower than its width in the decorative portion 3. Specifically, the width of the opening 32a is narrower than the width of the decorative portion 3, but the characters 21 "0", "20", "60", "100", "140", "180" The width of the opening 32a is provided relatively large at the position of each scale 22, and the opening 32a is not provided at the position of each scale 22 of "0" and "180" of the character 21.

  The reason why the width of the opening 32a is relatively large at these positions is to provide the function of the scale 22 to the opening 32a, and the opening 32a is not provided at the positions of "0" and "180" of the character 21. This is for distinguishing between a range in which the pointer 4 rotates and a range in which the pointer 4 does not rotate.

  The opening 32a may have a simple ring shape with a uniform width.

  The opening 32 a is configured to receive white light from the light emitting diode 7 guided by the light guide unit 9 and to emit and display, for example, orange light. For example, an orange colored layer (not shown) is formed on the second reflecting surface 92 in order to emit and display in orange.

  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 12 composed of a microcomputer or the like is always supplied with electric power from the battery 16, and the ignition switch 15 is connected so as to be able to detect its operation position (off position, on position) to detect the traveling speed of the vehicle. A vehicle speed sensor 13 or a sensor or switch (not shown) is connected to be able to input these signals.

  Further, a light control switch 14 is connected to the control device 12 so as to be able to detect its operation position (off position, small lamp position, head lamp position). In the off position, the vehicle width light, tail light, and headlight are all turned off. In the small lamp position, only the vehicle width light, tail light, and the vehicle width light, tail light, and headlight are turned on.

  Further, the movement 5 and the light emitting diodes 6 and 7 driven by the control device 2 in accordance with the detection signal from the vehicle speed sensor 13 are also connected to the control device 12.

(Operation)
The operation of the combination meter 1 configured as described above according to an embodiment of the present invention will be described.

  When the ignition switch 15 is turned on, in FIG. 3, the control device 12 detects it and starts operation. That is, based on the output signal from the speed sensor 13, the vehicle speed of the vehicle is calculated, and the movement 5 is driven so that the shaft 51 is rotated by an angle corresponding to the calculated vehicle speed.

  When the surroundings of the vehicle are bright, such as in the daytime, the light control switch 14 is operated to the off position, and the vehicle width lamp, tail lamp, and headlamp are all turned off. In this off position, the control device 12 turns off the light emitting diodes 6 and 7.

  On the other hand, when the surroundings of the vehicle are dark, such as at sunset, the light control switch 14 is operated to the small lamp position, and only the vehicle width lamp and tail lamp are turned on. When the surroundings of the vehicle are dark, such as at night, the light control switch 14 is operated to the headlamp position, and the vehicle width lamp, tail lamp, and headlamp are all turned on.

  At these small lamp position and head lamp position, the control device 12 lights up the light emitting diodes 6 and 7.

  It should be noted that when the ignition switch 15 is turned on, a self-light-emitting meter that lights the light-emitting diodes 6 and 7 may be used. However, in the case where each of these light-emitting diodes is turned on by the small lamp position and the head lamp position, Explained.

  Hereinafter, the visual recognition state of the dial 2, the decorative portion 3, and the pointer 4 will be described for each operation position of the light control switch 14.

(1) Off position Characters 21 and scales 22 of the dial 2 are displayed in white by white light such as sunlight, and the background layer 23 is displayed in blue. The pointer 4 is displayed in red, and the translucent layer 31 of the decorating unit 3 is displayed in a silver color (metallic tone) different from the blue color of the background layer 23.

  Thereby, in FIG. 1, the background layer 23 of the dial 2 is displayed in blue, the character 21 and the scale 22 are displayed in white in the blue, and the pointer 4 is displayed in red. The decorative portion 3 that forms the outer frame of the blue background layer 23 is displayed in silver with a display color different from that of the background layer 23 without the opening portion 32a being viewed. For this reason, the decoration part 3 can decorate the dial 2 and the pointer | guide 4 without impairing a decoration function.

(2) Small lamp position and head lamp position The white light emitted from the light emitting diode 6 is guided to the pointer 4 by the reflector 8, and the pointer 4 is displayed in red.

  On the other hand, the white light of the lit light-emitting diode 7 is guided by the light guide unit 9 to the dial 2 according to the optical path indicated by the arrow P1, and transmitted through the dial 2, and is guided to the decorating unit 3 according to the optical path indicated by the arrow P2. To do.

  In the optical path of the arrow P1, the white light of the light emitting diode 7 is reflected by the first reflecting surface 91, the reflected light is uniformly reflected by the diffuse reflection layer 93, and this reflected light is transmitted through the character 21 and the scale 22 for illumination. To display them in white.

  In the optical path indicated by the arrow P <b> 2, the white light of the light emitting diode 7 is reflected by the first reflecting surface 91, the reflected light is reflected by the second reflecting surface 92, and this reflected light passes through the second through hole 25 and is a decorative base material. 30 is transmitted. This transmitted light transmits and illuminates the light transmissive layer 31 (light transmissive portion) in the opening 32a of the light transmissive layer 32, and emits and displays it in orange.

  Particularly at night or the like, in FIG. 1, the opening 32 a in which the opaque layer 32 is not formed is lit and displayed in orange, and the remaining portion of the decoration portion 3 is black (dark state). The pointer 4 is lit and displayed in red, the characters 21 and scales 22 on the dial 2 are lit and displayed in white, and the background layer 23 of the dial 2 is black (dark state).

  Thereby, in FIG. 1, the character 21 and the scale 22 are light-emitted and displayed in white in the black background layer 23, and the pointer 4 is light-emitted and displayed in red. The opening 32a of the decorating part 3 that forms the outer frame of the black background layer 23 is illuminated and displayed in orange, so that the letters 21, scales 22 and pointers 4 on the dial 2 can be decorated.

  Here, as described above, the opening 32a is formed so that the width thereof is narrower than the width of the decorative portion 3, and the second reflecting surface 92 is disposed at a position facing the opening 32a. As described above, in the prior art, there is no opaque layer 32 in FIG. In this case, the luminance is low at both ends in the left-right direction indicated by the arrows in the figure, and the luminance is high at the center in the left-right direction. That is, light emission spots occur.

  On the other hand, in the present embodiment, since the opaque layer 32 having the opening 3 is provided at the center in the left-right direction, the opening 3 is lit and displayed with high brightness without causing light emission spots. The

  Furthermore, since the light from the light emitting diode 7 is guided to a position facing the opening 32a, the opening 32a can be efficiently lit and displayed.

  That is, since the light emitting display area is narrowed at a high luminance position and the light from the light source is guided to the vicinity of the light emitting display area, light emission spots are generated particularly in the width direction of the opening 32a. There is not, and it is clear, that is, the luminance is high, and the light is displayed in orange with good contrast with the black background layer 23. As a result, the opening 32a can be decorated with a good look and feel of the character 21, the scale 22 and the pointer 4 of the dial 2.

  In the combination meter 1 according to the embodiment of the present invention described above, the decorative portion 3 that forms the outer frame of the character 21 and the scale 22 as the display design has a width narrower than the width of the character 21 and the scale 22. The opening 32a which is a translucent part which has a substantially ring shape which is the outer frame shape is provided. Further, the light from the light emitting diode 7 that is incident on the light guide unit 9 at the position where the light guide unit 9 that guides the light from the light emitting diode 7 that is the light source to the opening 32a is opposed to the opening 32a. Is provided with a second reflecting surface 92 which is a light emitting part for emitting light to the opening 32a.

  As a result, the opening 32a does not cause light emission spots in the width direction in particular, and is clearly displayed, that is, has a high brightness and is lit and displayed in orange with a good contrast with the black background layer 23. The characters 21, scales 22 and pointers 4 on the board 2 can be beautifully decorated.

  Furthermore, since the light guide unit 9 which is a dedicated light guide means is provided at a position facing the opening 32a of the decoration unit 3, the combination meter including the decoration unit 3 capable of realizing bright and good illumination. 1 can be provided.

  In addition, the formation method of the decoration part 3 is not restricted to the method mentioned above, You may form the dial base material 20 and the decorating base material 30 as an integral thing. Specifically, the background layer 23, the opaque layer 32, and the transparent layer 31 are formed on the plate-like dial base material 20 by printing or hot stamping. After printing or the like, the decoration portion 3 is formed in a ring shape protruding to the front side (the upper side indicated by the arrow in FIG. 2) by pressure molding (a type of drawing) or the like.

  In this case, the light-impermeable layer 32 is formed of, for example, a black resin material that does not transmit light, and the light-transmitting layer 31 is formed of, for example, a predetermined amount of aluminum powder having a predetermined particle size or shape on a light-transmitting resin. It is made of mixed material.

  In the case described above, the decoration part 3 is configured to be displayed in silver at the off position, but it is not necessary to be limited to this. For example, the light-impermeable layer 32 is formed in blue that does not transmit light, and the light-transmitting layer 31 is formed in blue that has light transmission lower than colorless and transparent but has light transmission.

  In this case, the background layer 23 of the dial 2 is, for example, gray, which is different from the blue color of the decorating unit 3. In addition, the white light from the light emitting diode 7 guided by the light guide unit 9 is received, and the opening 32a is configured to emit light in blue.

  In this case, in the off position, the background layer 23 of the dial 2 is displayed in gray in FIG. 1, the letters 21 and the scale 22 are displayed in white, and the pointer 4 is displayed in red. The decorative portion 3 that forms the outer frame of the gray background layer 23 is displayed in blue in which the opening 32a is not visually observed and the display color of the background layer 23 is different. For this reason, the decoration part 3 can decorate the dial 2 and the pointer | guide 4 without impairing a decoration function.

  On the other hand, in the small lamp position and the headlamp position, particularly at night, etc., in FIG. 1, the characters 21 and the scales 22 are displayed in white in the black background layer 23, and the pointer 4 is displayed in red. The opening 32a of the decorating part 3 that forms the outer frame of the black background layer 23 is illuminated and displayed in blue, so that the letters 21, scales 22 and pointers 4 on the dial 2 can be decorated.

  FIG. 4 is a cross-sectional view showing a first modification of FIG.

  FIG. 5 is a cross-sectional view showing a second modification of FIG.

  FIG. 6 is a cross-sectional view showing a third modification of FIG.

  In the first modification, as shown in FIG. 4, the light guide unit 9 is extended from the second reflecting surface 92 to the vicinity of the opening 32 a of the decorating unit 3, and the tip thereof is a light emitting surface that is a light emitting unit. 94. Thereby, since the light from the light emitting diode 7 is guided to the vicinity of the opening 32a along the optical path of the arrow P3, the opening is clearer, that is, the brightness is higher and the contrast is higher with respect to the black background layer 23. 32a can be lit and displayed.

  In the 2nd modification, as shown in Drawing 5, opening 32a of decoration part 3 is formed in the side by the side of pointer 4 in decoration part 3. As shown in FIG. Moreover, the light guide part 9 is extended from the 2nd reflective surface 92 to the opening part 32a vicinity, and let the front-end | tip be the 3rd reflective surface 95 which is a light-projection part.

  Thereby, since the light from the light emitting diode 7 is guided to the vicinity of the opening 32a, the brightness of the opening 32a is displayed more clearly with respect to the black background layer 23 with higher brightness and higher contrast. Can do.

  Further, in the second modification, the light from the light emitting diode 7 is guided to the character 21 and the scale 22 of the dial 2 through the opening 32a according to the optical path of the arrow P4, and illuminates them. Thereby, the appearance can be further improved.

  In the third modified example, as shown in FIG. 6, a diffusion plate 10 that uniformly transmits and illuminates the light from the light emitting diode 7 to the dial 2 is provided instead of the light guide unit 9. The diffusion plate 10 is formed of a material obtained by mixing non-translucent particles in a translucent resin such as polymethyl methacrylate / acrylic (PMMA) resin.

  The light from the light emitting diode 7 is guided to the diffusion plate 10 by the reflector 8, a part of which transmits and illuminates the character 21 and the scale 22 of the dial 2, and the remaining part is the opening 32 a of the decoration part 3. Led to. That is, in the third modified example, the reflector 8 and the diffusion plate 10 function as a light guide unit. Thereby, the above-mentioned effect is acquired.

  In addition, the shape of the opening part 32a of the decorating part 3 is not restricted to the above-mentioned shape. Any outer frame shape of the character 21 and the scale 22 of the dial 2 may be used. For example, it may be a polygon, a broken line, or a pattern formed along these outer frames.

  In addition, although a speedometer is formed as a pointer instrument, it is not necessary to limit to this, and other instruments such as a tachometer 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 the line II-II in FIG. FIG. 3 is a circuit configuration diagram illustrating an electrical circuit configuration of the combination meter 1 according to one embodiment of the present invention. FIG. 4 is a cross-sectional view showing a first modification of FIG. FIG. 5 is a cross-sectional view showing a second modification of FIG. FIG. 6 is a cross-sectional view showing a third modification of FIG.

Explanation of symbols

1 Combination meter (pointer meter)
2 Dial 20 Dial base material 21 Character (display design)
22 Scale (display design)
23 Background layer (background part)
24 1st through-hole 25 2nd through-hole 3 Decorating part 30 Decorating base material 31 Translucent layer (decorative display layer)
32 Non-translucent layer 32a Opening (translucent part)
4 Pointer 41 Light-shielding cap 5 Movement 51 Shaft 6 Light-emitting diode 7 Light-emitting diode (light source)
8 Reflector (light guiding means)
9 Light guide (light guide)
91 1st reflective surface 92 2nd reflective surface (light emitting part, reflective surface)
93 Diffuse reflection layer 94 Light exit surface (light exit part)
95 3rd reflective surface (light emission part, reflective surface)
10 Diffuser (light guide)
DESCRIPTION OF SYMBOLS 11 Printed circuit board 12 Control apparatus 13 Vehicle speed sensor 14 Light control switch 15 Ignition switch 16 Battery

Claims (8)

A dial on which a display design is formed;
A pointer that rotates along the front surface of the dial;
A decorative portion disposed on an outer periphery of the display design and forming an outer frame of the display design;
A light source disposed on the back side of the decorating part, and illuminating the decorating part,
The pointer instrument has a light-transmitting part having a width narrower than that of the decoration part and having an outer frame shape of the display design. A light guide unit disposed behind the decoration unit and guiding light from the light source to the translucent unit;
The light guide unit includes a light emitting unit that emits light from the light source incident on the light guide unit to the light transmitting unit at a position facing the light transmitting unit. Pointer instrument.   The pointer instrument according to claim 2, wherein the light emitting unit is a reflecting surface that reflects light from the light source incident on the light guide unit to the light transmitting unit.   The pointer instrument according to any one of claims 1 to 3, wherein the translucent portion is disposed on the front side closer to the viewing side than the dial.   5. The pointer instrument according to claim 4, wherein the light emitting portion is disposed on a front side closer to a viewing side than the dial and on a rear side of the light transmitting portion.   The pointer instrument according to claim 5, wherein the translucent part illuminates the display design.   The pointer instrument according to any one of claims 1 to 6, wherein the outer frame shape of the display design is a substantially ring shape. The decorative portion includes a decorative display layer on the surface and an opaque layer on the back side of the decorative display layer,
The decorative display layer is translucent and has a display color different from the background portion of the display design,
The opaque layer has an opening as the transparent portion,
The decorating unit displays the shape of the translucent part by turning on the light source,
The said decoration display layer of the said decoration part is displayed with the display color different from the color of the background part of the said display design by turning off the said light source. The pointer instrument according to one item.

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