JP2014145606A - Indicator - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an indicator having a visual performance effect.SOLUTION: An indicator includes: a display board 60 arranged on the front side of a light guide member 41; and a cover part 42 for covering the light guide member 41. The light guide member 41 includes: a first reflection part 41c for allowing illumination light guided to the inside of the light guide member 41 to be reflected toward a viewer side as reflection light L1; and a second reflection part 41d for allowing illumination light guided to the inside of the light guide member 41 to be reflected in a direction different from a viewer side as the other reflection light L2. The cover part 42 includes: a first light emission area 42a for emitting the reflection light L1; and a second light emission area 42b for emitting the other reflection light L2. The first emission light is visually recognized as an indication light emission part S1 for indicating measurement value display parts 61 when viewed from the viewer side, and the second emission light is visually recognized as a belt shape light emission part S2 continuing to the indication light emission part S1 when viewed from the viewer side by being guided by reflection to the viewer side by way of a light reflection part 53.

Description

  The present invention relates to an indicating instrument mounted on a vehicle such as an automobile.

  Conventionally, as this kind of indicating instrument, for example, the one described in Patent Document 1 below is known. The indicating instrument described in Patent Document 1 includes a hard circuit board provided with a predetermined wiring pattern, a drive device that is conductively attached to the circuit board and has a rotation shaft extending forward, and a rotation shaft of the drive device. A needle that is attached to the needle and rotates according to the measured value, a transmission plate made of a white translucent synthetic resin, disposed between the pointer and the circuit board, and disposed on the front side of the transmission plate and the pointer. And a light source for illuminating a transmissive plate mounted on a circuit board. The display board has a black indicator portion printed on a light-transmitting substrate as a base material, and this indicator portion is formed in an arc shape so as to correspond to the operating range of the pointer extending linearly. Yes.

JP 2007-271426 A

By the way, in the case of the indicating instrument described in Patent Document 1, the linearly extending pointer merely indicates the indicator portion while always rotating according to the measurement value, so that it is a monotonous display effect without interest. As a result, the visual performance effect was insufficient, and there was room for further improvement in this respect.
Therefore, the present invention aims to provide an indicating instrument having a visual effect in order to cope with the above-described problems.

  The present invention provides a light reflection member having a light guide member capable of introducing illumination light from a light source from a light receiving portion provided in a rotation center region, an opening through which the illumination light passes, and a light reflecting portion surrounding the opening. A display plate disposed on the viewer side, which is the front side of the light reflector and the light guide member, and a covering portion that covers the light guide member, the display plate including the light guide member A measurement value display unit provided in an operating range of the light source, and a light transmission unit provided so as to correspond to the measurement value display unit, wherein the light guide member emits illumination light guided into the light guide member. In order to reflect to the viewer side as reflected light, the first reflecting portion provided at a predetermined location of the tip portion of the light guide member, and provided at another location of the tip portion different from the predetermined location, Illumination light guided into the light guide member is viewed as other emitted light different from the reflected light. A second reflecting portion for reflecting in a direction different from the person side, and a first light emitting region for emitting the reflected light and a second light emitting the other reflected light on the covering portion. A light emission region, and the first emission light emitted from the first light emission region is an instruction light emission for instructing the measurement value display unit through the light transmission unit when viewed from the viewer side The second emitted light that is visually recognized as a part and is emitted from the second light emitting region is reflected and guided to the viewer side through the light reflecting part, so that when viewed from the viewer side, It is visually recognized as a strip-like light emitting part connected to the instruction light emitting part through the light transmitting part.

  Further, the present invention is characterized in that the band-like light emitting portion is formed as a gradation pattern that becomes lighter and darker as the distance from the instruction light emitting portion increases.

  The present invention further includes a background portion that forms a background of the measurement value display portion, and the background portion includes a light-shielding layer formed on a light-transmitting substrate serving as a base material of the display plate, The board | substrate location corresponding to a part is provided with the dark color layer, It is characterized by the above-mentioned.

  In the invention, it is preferable that the covering portion is provided with a light shielding region that covers the light guide member portion excluding the light receiving portion and the regions corresponding to the first and second light emitting regions. To do.

  ADVANTAGE OF THE INVENTION According to this invention, the initial objective can be achieved and the indicating instrument with a visual production effect can be provided.

The front view of the indicating instrument by embodiment of this invention. AA sectional drawing of FIG. The perspective view of the rotation member by the embodiment. The top view of the rotation member by the embodiment. BB sectional drawing of FIG. The figure which shows a part of rotation member and light reflector by the modification of the embodiment.

  Hereinafter, based on FIGS. 1-5, one Embodiment which applied this invention to the speedometer mounted in the vehicle is described.

  1 and 2, the speedometer as an indicating instrument according to the present embodiment includes a circuit board 10, a drive device 30 that is conductively attached to the circuit board 10 and has a rotating shaft 20 extending forward, and a rotating shaft 20. A rotating member 40 that is driven to rotate, a light reflector 50 that is located behind the rotating member 40 and is disposed on the circuit board 10, and the light reflector 50 and the rotating member. 40 is provided with a display plate 60 arranged on the viewer side, which is the front side of 40, an illumination means 70 for illuminating the display plate 60, and a light source 80 for illuminating the rotating member 40.

  The circuit board 10 is made of, for example, a hard wiring board in which a wiring pattern (not shown) is provided on a glass epoxy base material. The circuit board 10 includes a display light source (described later) provided in the illumination unit 70, a light source 80, and driving of the driving device 30. A driving means (not shown) for controlling and various circuit components (not shown) such as a resistor and a capacitor are conductively connected to the wiring pattern.

  The drive device 30 is composed of a movable magnet-type instrument or a stepping motor, the main part of which is attached to the back of the circuit board 10 so that the rotating shaft 20 penetrates the circuit board 10, and appropriate conduction means such as soldering. To electrically connect to the wiring pattern (the driving means).

  As shown in FIGS. 3 to 5, the rotating member 40 partially covers the light guide member 41 having a substantially elongated flat plate shape formed of a light-transmitting synthetic resin material and the light guide member 41. A covering portion 42 is provided, and is attached to the tip of the rotating shaft 20.

  The light guide member 41 is provided so that illumination light from the light source 80 can be introduced from the light receiving portion 41a provided on the back surface of the rotation center region R1 on the rotation shaft 20 side (one end side).

  In other words, the illumination light from the light source 80 is taken into the light guide member 41 through the light receiving portion 41a, and then reflected in an inclined shape provided on the front surface of the rotation center region R1 so as to correspond to the light receiving portion 41a. The light guide member 41 emits light in a longitudinal shape by being reflected and guided by the wall 41b to the distal end portion (the other end side) R2 of the light guide member 41 on the side opposite to the rotation center region R1. ing.

  In this case, the light guide member 41 is provided with first and second reflecting portions 41c and 41d having an inclined surface shape for reflecting the illumination light reflected and guided to the distal end portion R2. The first reflecting portion 41c reflects the illumination light guided into the light guide member 41 to the viewer side as reflected light L1 (that is, in the predetermined portion of the distal end portion R2 of the light guide member 41 (that is, in FIG. 3). The reflection surface is provided at the lower left corner of the light guide member 41.

  On the other hand, the second reflection portion 41d is provided at another location (that is, the upper left corner of the light guide member 41 in FIG. 3 or 4) different from the predetermined location, and the light guide member 41. As will be described later, the illumination light guided inward is made of a reflection surface that reflects the illumination light in a direction different from the viewer side as another reflected light L2 different from the reflected light L1.

  In this case, the second reflecting portion 41d is provided so as to be continuous with the first reflecting portion 41c, and the size (formation region) of the second reflecting portion 41d is that of the first reflecting portion 41c. It is set to be larger than the size (formation region).

  The covering portion 42 includes a first light emitting area 42a (see FIG. 2) for emitting the reflected light L1 reflected and guided by the first reflecting portion 41c to the viewer side, and a second reflecting portion 41d. The second light emitting region 42b (see FIG. 5) that emits the other reflected light L2 reflected and guided by the light in a direction different from the viewer side, and the opening region 42c provided to correspond to the light receiving unit 41a And a light shielding region 42d that covers 41 light guide members excluding a region corresponding to the first and second light emitting regions 42a and 42b and the opening region 42c (light receiving portion 41a). Here, the light shielding region 42d is formed by a light shielding layer region formed in a layered manner on the outer surface of the light guide member 41 using, for example, means such as vapor deposition or painting.

  The first light emitting region 42a is composed of a light emitting slit formed in the shape of a long hole in the upper surface of the distal end portion R2 of the light guide member 41, and corresponds to (opposes to) the first reflecting portion 41c. It is provided in a part of the upper surface. Further, the second light emitting region 42b is composed of an opening area for light emission formed in a part of one side surface of the distal end portion R2, and corresponds to (opposes to) the second reflecting portion 41d (visible). (It is a direction different from the person side).

  Each of the light emitting areas 42a and 42b and the opening area 42c is formed as a portion where the light shielding area 42d formed of the light shielding layer area is not formed. Further, when focusing attention on the light emitting regions 42a and 42b, the formation positions of the light emitting regions 42a and 42b are not the same in the longitudinal direction of the light guide member 41, and the second light emitting region 42b is slightly more It is the structure extended to the rotation center area | region R1 side.

  The light reflector 50 is formed of, for example, a white synthetic resin material, and includes a cylindrical portion 52 having an opening 51 having a through-hole shape through which illumination light from the light source 80 passes, and a cylindrical portion 52 (opening portion). 51) and a light reflection portion 53 provided so as to surround the light reflection portion 53 and an outer wall portion 54 located outside the light reflection portion 53 are integrally formed.

  The cylindrical portion 52 is positioned between the rotation center region R1 of the light guide member 41 and the circuit board 10 so as to surround the light source 80, and guides illumination light from the light source 80 to the rotation center region R1. It functions as a room.

  The light reflecting portion 53 includes a base portion 53a having a substantially annular flat plate shape surrounding the cylindrical portion 52 (opening portion 51), and a substantially annular standing wall extending from the periphery of the base portion 53a toward the display plate 60 side. The base portion 53a is provided so as to connect the upper end portion of the tubular portion 52 and the lower end portion of the standing wall portion 53b.

  The display board 60 has an arcuate array shape along the operating range of the rotating member 40 (an instruction light emitting unit described later), and a measurement value display unit 61 including scales, numbers, and the like indicated by the instruction light emitting unit. And a background portion 62 made of a light-shielding layer that forms the background of the measurement value display portion 61, and the background portion 62 outside the measurement value display portion 61 is formed in a substantially horseshoe shape so as to surround the measurement value display portion 61. And a light transmission portion 63 formed as described above.

  The measurement value display unit 61, the background unit 62, and the light transmission unit 63 are configured so that the measurement value display unit 61 provided in the operating range of the rotating member 40 (light guide member 41) is made of, for example, white translucent ink. 62 is printed and formed on the surface of a light-transmitting substrate 64 made of a thin plate, which is a base material of the display plate 60, for example, with black light-shielding ink.

  The light transmitting portion 63 is formed by a non-printed portion where the background portion 62 is not formed by removing and printing the light-shielding ink that forms the background portion 62. Therefore, the light transmitting portion 63 is provided so as to correspond to the measured value display portion 61. In the part 63, the substrate 64 is partially exposed, and accordingly, from the viewer side, both the indicator light emitting part and a band-like light emitting part described later can be seen through (visible) through the light transmitting part 63. ing. Although not shown in detail, a dark color layer having a smoke color tone may be provided on the surface portion of the substrate 64 (or the back surface portion of the substrate 64) corresponding to the light transmission portion 63, if necessary.

  The illumination means 70 includes a display light source 71 and a light guide 72 that guides illumination light from the display light source 71 to the measured value display unit 61 of the display plate 60.

  The display light source 71 is composed of, for example, a chip-type light emitting diode that emits white light, and a plurality of display light sources 71 are mounted on the circuit board 10. In this case, the light emitting surface of the display light source 71 is in a positional relationship so as to face a bottom portion of a hanging portion, which will be described later, of the light guide 72 positioned between the standing wall portion 53b and the outer wall portion 54. The illumination light from 71 is introduced into the drooping portion through the bottom.

  The light guide 72 is made of a light-transmitting synthetic resin material, and is arranged so as to be along the back surface of the display plate 60. The light guide 72 is below the periphery of the back surface side of the disk portion 72a (display light source 71). And a substantially cylindrical hanging part 72b that hangs down to the side), and a plurality of display light sources 71 are arranged at equal intervals directly below the bottom of the hanging part 72b.

  In addition, 72c is a reflective surface provided in the surface side periphery of the disc part 72a, and although detailed illustration is abbreviate | omitted, the light for diffusing illumination light on the back surface of the disc part 72a as needed An embossing process as a diffusion part may be performed.

  Therefore, when the display light source 71 is turned on, the illumination light emitted from the display light source 71 is supplied into the hanging portion 72b through the bottom portion of the hanging portion 72b in the light guide 72 positioned directly above the light source 72, and is directly forward. Then, the light is guided into the disk portion 72a through the reflecting surface 72c, and the measurement value display portion 61 emits white light.

  The light source 80 is composed of a chip-type light emitting diode that emits an appropriate color (here, white light), and a plurality of light sources 80 are mounted on the circuit board 10 so as to face the rotation center region R1 and supply illumination light to the light guide member 41. It consists of a luminous body.

  Illumination light emitted from the light source 80 passes through the cylindrical portion 52 to the rotation center region R1 side of the light guide member 41, and is taken into the light guide member 41 through the light receiving portion 41a, and then the reflection wall 41b. As a result, the light guide member 41 emits light.

  In the light guide member 41, the illumination light reflected and guided to the tip end portion R2 is a first portion provided at the predetermined position of the tip end portion R2 (the lower left corner of the light guide member 41 in FIG. 3). The reflected light L1 reflected by the reflecting portion 41c and the second reflecting portion 41d provided at the other portion of the tip end portion R2 (the upper left corner of the light guide member 41 in FIG. 3 or FIG. 4) are reflected. And the other reflected light L2.

  Here, as shown in FIG. 2, the reflected light L1 is reflected and guided toward the first light emitting region 42a side (the display panel 60 side), and as the first emitted light from the first light emitting region 42a. Emitted. The first emitted light emitted from the first light emitting region 42a is emitted toward the disc portion 72a, passes through the disc portion 72a, and is a light transmitting portion when viewed from the viewer side. It is visually recognized as a white instruction light emitting unit S1 that instructs the measurement value display unit 61 through 63.

  On the other hand, the other reflected light L2 is reflected and guided toward the second light emitting region 42b as shown in FIG. 5, and is emitted from the second light emitting region 42b as the second emitted light. Then, the second emitted light emitted from the second light emitting region 42b is emitted toward the light reflecting portion 53, and then strikes the base 53a (or the base 53a and the standing wall 53b) to the viewer side. Reflected and guided.

  That is, the second emitted light is reflected and guided to the viewer side through the light reflecting portion 53 (the base portion 53a, or the base portion 53a and the standing wall portion 53b), and then the detailed illustration is omitted. Similar to the optical path of the emitted light, the light passes through the disc portion 72a, so that when viewed from the viewer side, the light is visible as a white belt-like light emitting portion S2 connected to the instruction light emitting portion S1 through the light transmitting portion 63. (See FIG. 1).

  In this case, the belt-like belt-like light emitting portion S2 formed so as to pull the tail of the indicator light emitting portion S1 is formed as a gradation pattern that becomes lighter and darker as it moves away from the indicator light emitting portion S1.

  In other words, the amount of reflected light of the second emitted light that is reflected and guided to the viewer side upon hitting the light reflecting portion 53 is relatively large on the indicator light emitting portion S1 side, and gradually as the distance from the indicator light emitting portion S1 side increases. Due to the decrease, the band-like light emitting part S2 is darker on the side closer to the instruction light emitting part S1 and becomes thinner as it moves away from the instruction light emitting part S1 side (that is, paying attention to the measured value display part 61, The gradation pattern is such that the color becomes lighter as it goes from the measurement value “Large” to the measurement value “Small”, and the color near the instruction light emitting part S1 is strong and the color on the far side is weak. Since the shade of the color changes, it is possible to provide an indicating instrument having a visual effect using the shade of the color.

  As described above, according to the present embodiment, the light guide member 41 is provided at the first reflecting portion 41c provided at the predetermined portion of the tip portion R2 of the light guide member 41 and at the other portion of the tip portion R2. The covering portion 42 has a first light emitting area 42a for emitting the reflected light L1 and a second light emitting area 42b for emitting the other reflected light L2. The first emitted light that is provided and emitted from the first light emitting region 42a is visually recognized as an instruction light emitting unit S1 that instructs the measured value display unit 61 through the light transmitting unit 63 when viewed from the viewer side. The second emitted light emitted from the second light emitting region 42b is reflected and guided to the viewer side through the light reflecting portion 53, so that the light transmitting portion when viewed from the viewer side. It is visually recognized as a strip-like light emitting part S2 that continues to the instruction light emitting part S1 through 63. Than is. Further, the band-like light emitting portion S2 is formed as a gradation pattern that becomes lighter and darker as the distance from the instruction light emitting portion S1 increases.

  Accordingly, the strip-shaped light emitting section S2 formed so as to have a tail of the instruction light emitting section S1 has a gradation pattern in which the side closer to the instruction light emitting section S1 is darker and becomes thinner (lighter) as it is farther from the instruction light emitting section S1 side. Since the color shade changes so that the color near the indication light emitting portion S1 is strong and the color on the far side becomes weak, an indication instrument having a visual effect using the color shade is provided. be able to.

  Further, in the present embodiment, a background portion 62 that forms the background of the measurement value display portion 61 is provided, and the background portion 62 includes a light shielding layer formed on a light transmissive substrate 64 that is a base material of the display plate 60, Since the dark color layer is provided at 64 locations (surface location or back location of the substrate 64) corresponding to the light transmitting portion 63, the dark color layer is applied when the display board 60 is viewed from the viewer side. As a result, the dark color visual recognition area of the light transmitting portion 63 to be visually recognized in the smoke color tone and the background portion 62 other than the dark color visual recognition area are substantially the same color, and the dark color visual recognition area and the surroundings thereof It is possible to blur the boundary between the 62 background portions and to provide an indicating instrument with improved display quality.

  Further, in the present embodiment, the covering portion 42 includes a light shielding region 42d that covers 41 portions of the light guide member excluding the opening region 42c (light receiving portion 41a) and the regions corresponding to the first and second light emitting regions 42a and 42b. Is provided, the indicator light emitting part S1 and the strip light emitting part S2 can be expressed with a simple configuration in which the light shielding region 42d is partially formed in the rotating light guide member 41, which is cost effective. Is advantageous.

  Further, in the present embodiment, when the band-like light emitting unit S2 pays attention to the measurement value display unit 61, the color with the larger measurement value is darker, and the color increases as the measurement value increases from “large” to the measurement value “small”. The example in which the gradation pattern becomes lighter has been described, but for example, the band-shaped light emitting portion S2 has a gradation pattern in which the color becomes lighter as it goes from the measurement value “small” to the measurement value “large”. May be formed.

  In this case, although not shown in detail, the first reflecting portion 41c is provided in the upper left corner of the light guide member 41 in FIG. 3 instead of the lower left corner of the light guide member 41 as in the present embodiment. As in the present embodiment, the second reflecting portion 41d is provided not at the upper left corner of the light guide member 41 but at the lower left corner of the light guide member 41, and the first light emitting region 42a is provided at the light guide member 41. The second light emitting region 42b is provided so as to face the second reflecting portion 41d located at the lower left corner of the light guide member 41. Should be provided.

  Further, in the present embodiment, the light shielding region 42d covering the 41 light guide members excluding the regions corresponding to the first and second light emitting regions 42a and 42b and the opening region 42c (light receiving portion 41a) is formed by vapor deposition, painting, etc. However, the abdomen portion 42 is constituted by a case body such as a substantially box-shaped resin case that covers the outer surface of the light guide member 41, for example. In the case body, three portions of through holes are formed in positions corresponding to the first and second light emitting regions 42a and 42b and the opening region 42c described above, so that the abdominal portion 42 (the case body) is formed. In addition, the first and second light emitting regions and the opening region may be formed.

  In the present embodiment, the second reflecting portion 41d has been described with respect to an example in which the cross-sectional shape is formed on a vertical plane orthogonal to the plate surface direction of the base portion 53a as shown in FIG. For example, the second reflecting portion 41d is not a vertical plane but the upper end side of the second reflecting portion 41d is slightly closer to the first light emitting region 42a side than the state of FIG. 5 as in the modification shown in FIG. It is good also as an inclined surface formed by this. By using the second reflecting portion 41d as an inclined surface, the other reflected light L2 can be efficiently (positively) guided to the base portion 53a.

40 rotating member 41 light guide member 41a light receiving part 41b reflecting wall 41c first reflecting part 41d second reflecting part 42 covering part 42a first light emitting area 42b second light emitting area 42c opening area 42d light shielding area 50 Light reflector 51 Opening 52 Cylindrical part 53 Light reflection part 53a Base 53b Standing wall part 54 Outer wall part 60 Display board 61 Measurement value display part 62 Background part 63 Light transmission part 64 Substrate 70 Illumination means 71 Display light source 72 Light guide 80 Light source L1 Reflected light L2 Other reflected light R1 Rotation center region R2 Tip portion S1 Indicator light emitting portion S2 Band-shaped light emitting portion

Claims (4)

A light guide member capable of introducing illumination light from a light source from a light receiving portion provided in a rotation center region;
A light reflector having an opening through which illumination light passes and a light reflecting portion surrounding the opening;
A display plate disposed on the viewer side which is the front side of the light reflector and the light guide member;
A covering portion that covers the light guide member;
The display board is
A measurement value display section provided in the operating range of the light guide member;
A light transmission part provided to correspond to the measurement value display part,
The light guide member is
A first reflecting portion provided at a predetermined position of the distal end portion of the light guide member to reflect the illumination light guided into the light guide member to the viewer side as reflected light;
Illumination light, which is provided in another part of the tip part different from the predetermined part and guided into the light guide member, is reflected in a direction different from the viewer side as other emitted light different from the reflected light. A second reflective portion,
In the covering portion,
A first light emitting region for emitting the reflected light;
A second light emitting region for emitting the other reflected light, and
The first emission light emitted from the first light emission region is visually recognized as an instruction light emitting unit that instructs the measurement value display unit through the light transmission unit when viewed from the viewer side,
The second emitted light emitted from the second light emitting region is reflected and guided to the viewer side through the light reflecting portion, so that when viewed from the viewer side, it passes through the light transmitting portion. An indicating instrument characterized by being visually recognized as a strip-shaped light emitting portion connected to the instruction light emitting portion. 2. The indicating instrument according to claim 1, wherein the band-like light emitting portion is formed as a gradation pattern that becomes lighter and darker as the distance from the instruction light emitting portion increases. A background portion that forms a background of the measurement value display portion;
The background portion is composed of a light shielding layer formed on a light-transmitting substrate that is a base material of the display board,
The indicating instrument according to claim 1 or 2, wherein a dark color layer is provided at the substrate portion corresponding to the light transmission portion. The light-shielding area which covers the said light guide member location except the area | region corresponding to the said light-receiving part and the said 1st, 2nd light-projection area | region in the said coating | coated part is provided. The indicating instrument according to any one of claims 3 to 4.