JP2013185908A - Pointer instrument - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a pointer instrument capable of making visual effect of multiple meter parts provide a feeling of unity.SOLUTION: In a combination meter, a pointer body 131 of a self-luminous pointer 103 provided in a fuel gauge is formed so that a length of a pointer part of the pointer body is shorter than a length of a pointer part of a pointer body 31 of a self-luminous pointer 3 provided in a speed meter. In addition, a light incidence rate of a shaft part 140 of the pointer body 131 provided with the short pointer part is smaller than a light incidence rate of a shaft part 40 of the pointer body 31 provided with the long pointer part.

Description

  The present invention relates to a pointer instrument provided with a plurality of meter units such as a speedometer, an engine speed meter, and a fuel meter, for example.

  In general, a vehicle is equipped with a vehicle display device that displays measured values such as a vehicle speed, an engine speed, and a fuel remaining amount. In many vehicles, the vehicle display device includes a pointer instrument. Such a pointer instrument has a dial plate with indicators such as scales and numerals, letters or symbols on the surface, a pointer unit that is arranged on the front side of the dial and points to the indicator on the dial plate, and a pointer unit There are provided a plurality of meter sections each composed of a drive device for rotating the rotation shaft to which the is attached according to the measurement amount.

  And in order to make it easy to see the pointer unit provided in such a pointer instrument even in the dark, the pointer member constituting the pointer unit is formed of a light-transmitting synthetic resin as a light-transmitting material. Various techniques for making a pointer member shine by guiding light from a light source into the member have been disclosed (see, for example, Patent Document 1).

  An example of a conventional pointer instrument provided with such a pointer member is shown in FIGS. The pointer instrument 900 shown in these drawings includes a dial 902, a self-luminous pointer 903 as a pointer unit, and a drive provided with a rotating shaft 914 made of a translucent synthetic resin that is rotated according to a measurement amount. A plurality of meter portions 901 each having a device 904, a wiring board 905, and a light source 906 are provided. In FIG. 16, only one meter portion 901 is shown, but the other meter portions 901 have the same configuration except that the shape of the dial 902 and the length of the self-light emitting pointer 903 are different.

  The self-luminous pointer 903 of the meter portion 901 includes a pointer main body 931 as a pointer member having a shaft portion 940 and a pointer portion 950 integrally formed of a translucent synthetic resin, and covers the pointer main body 931 and the pointer portion 950. And a cover member 932 provided with a slit 971 for exposing the upper surface 953 toward the viewer. The pointer portion 950 is provided with a hollow reflecting portion 960 that reflects light from the shaft portion 940 in the longitudinal direction.

  The light emitted from the light source 906 is guided through the rotation shaft 914 and received by the shaft portion 940 of the pointer main body 931, and is guided from the shaft portion 940 to the pointer portion 950 and by the hollow reflecting portion 960. After being reflected, light is emitted from the upper surface 953 (that is, the light exit surface) of the pointer portion 950 toward the viewer. Thereby, the upper surface 953 of the pointer part 950 is visually recognized through the slit 971 of the cover member 932. In FIG. 16, the white arrow schematically shows the progress of light.

Japanese Utility Model Publication No. 6-12995

  In the pointer instrument having a plurality of meter parts as described above, for example, a meter part for displaying relatively important measurement values such as a speedometer and an engine speed meter is configured to be large, and other fuel gauges and water temperature Since the meter and the like are configured to be small, each meter portion is provided with a self-luminous pointer having a different length of the pointer portion. Moreover, the same light emitting member (for example, LED) is used for the light source of each meter part, and unity feeling, such as a color, is implement | achieved.

  However, since the same light emitting member (for example, LED) is used for the light source of each meter unit, the same amount of light is incident on the pointer member of each meter unit. Since a light emitting surface with an area corresponding to the length of the pointer portion is provided, the amount of light emitted per unit area in the pointer member with a short pointer portion length is per unit area in the pointer member with a long pointer portion length. Therefore, there is a problem that the pointer member having a short pointer part is viewed more brightly, and the brightness of each pointer part varies and the sense of unity of visual effects is impaired. there were. In order to avoid such problems, for example, a configuration in which the amount of current supplied to the light source or the type of the light source is changed for each meter unit can be considered, but the configuration becomes complicated or the color changes. There was another problem of getting stuck.

  The present invention aims to solve this problem. That is, an object of the present invention is to provide a pointer instrument that can make the visual effects of a plurality of meter portions have a sense of unity.

  In order to achieve the above object, the invention described in claim 1 is directed to a light source, a driving device including a rotating shaft for guiding light from the light source, and a pointer unit fixed to the rotating shaft. Each of the pointer units is provided with a pointer member formed of a light-guiding material, and each of the pointer members is provided with the rotating member. A light-receiving surface disposed opposite to the light-emitting portion of the shaft is formed at one end, a columnar shaft portion that guides light received by the light-receiving surface to the other end, and the shaft of the shaft portion from the other end of the shaft portion A pointer portion formed extending in a pointing direction that intersects the direction and a pointing direction reflecting surface formed so as to reflect light from the shaft portion toward the pointing direction; The first pointer portion provided with the short pointer portion among the members The light incident rate of the shaft portion is configured to be smaller than the light incident rate of the shaft portion of the second pointer member provided with the long pointer portion of the pointer member. It is a characteristic measuring instrument.

  The invention described in claim 2 is the invention described in claim 1, wherein an area of the light receiving surface of the first pointer member is smaller than an area of the light receiving surface of the second pointer member. It is comprised by these.

  According to a third aspect of the present invention, in the first or second aspect of the present invention, the distance between the light receiving surface of the first pointer member and the light exit surface of the rotating shaft is the second pointer. The member is configured to be larger than the distance between the light receiving surface of the member and the light emitting surface of the rotation shaft.

  The invention described in claim 4 is the invention described in any one of claims 1 to 3, wherein the pointer portion of the pointer member has a rear end direction opposite to the indicated direction in addition to the indicated direction. The pointer member is further integrally provided with a rear end direction reflecting surface formed so as to reflect light from the shaft portion toward the rear end direction. It is characterized by this.

  According to the first aspect of the present invention, the light incident rate of the shaft portion in the first pointer member provided with the short pointer portion among the pointer members provided in each of the plurality of meter portions (that is, The ratio of the light incident on the shaft portion out of the light emitted from the rotating shaft) is incident on the shaft portion of the second pointer member provided with the long pointer portion of the pointer member. Since the amount of light guided to the pointer portion of the first pointer member can be made smaller than that of the second pointer member, the length of the pointer portion can be reduced. The amount of emitted light per unit area of the first pointer member with a short length is made closer to the amount of emitted light per unit area of the second pointer member with a long pointer portion, and the brightness variation of each pointer portion is averaged. It is possible to make the visual effects of each pointer unit uniform. That.

  According to the second aspect of the present invention, the area of the light receiving surface of the first pointer member having the short pointer portion is smaller than the area of the light receiving surface of the second pointer member having the long pointer portion. Therefore, the smaller the area of the light receiving surface, the smaller the amount of light that enters the shaft portion. Therefore, the first pointer with a simple configuration and a short length of the pointer portion. The amount of emitted light per unit area of the member is made closer to the amount of emitted light per unit area of the second pointer member having the long pointer part length, and the brightness variation of each pointer part can be averaged. Visual effects can be unified.

  According to the third aspect of the present invention, the distance between the light receiving surface of the first pointer member having a short pointer portion and the light exit surface of the rotary shaft is the second pointer having a long pointer portion. Since the distance between the light receiving surface of the member and the light exit surface of the rotating shaft is greater, the larger the distance between the light receiving surface and the light exit surface, the more light that has exited the light exit surface reaches the light receiving surface. Therefore, the amount of light entering the shaft portion can be reduced, so that the amount of light emitted per unit area in the first pointer member having a short pointer portion can be reduced with a simple configuration. It is possible to average the variation in the brightness of each pointer unit close to the emitted light amount per unit area in the second pointer member having a long pointer unit length, and to have a unified sense of visual effect of each pointer unit can do.

  According to the invention described in claim 4, the pointer portion of the pointer member is formed to extend in the rear end direction opposite to the indicated direction in addition to the indicated direction. Since the rear end direction reflecting surface formed so as to reflect the light of the light toward the rear end direction is integrally provided, the length of the pointer portion can be increased, and the visual recognition of each meter portion Can be improved.

It is a front view of the combination meter which is one Embodiment of the pointer instrument which concerns on this invention. It is sectional drawing in the meter part (speedometer) of the combination meter of FIG. FIG. 3 is an exploded view of a self-luminous indicator provided in the meter unit of FIG. 2. (A) is the partial perspective view which looked at the pointer main body of the self-light-emitting pointer of FIG. 3 from the diagonal direction, (b) is the partial side view which looked at the pointer part of the pointer main body from the width direction. It is sectional drawing in the meter part (fuel gauge) of the combination meter of FIG. (A) is the partial perspective view which looked at the pointer main body of the self-light-emitting pointer of the meter part of FIG. 5 from the diagonal direction, (b) is the partial side view which looked at the pointer part of the pointer main body from the width direction. . It is a figure explaining the shape when the light-receiving part of the pointer main body of FIG. 4 and the light-receiving part of the pointer main body of FIG. 6 are viewed from the respective axial directions. (A) is an expanded sectional view for demonstrating the advancing state of the light in the vicinity of the fitting part of the self-light-emitting pointer and rotation shaft of FIG. 3, (b) is the self-light-emitting of FIG. It is an expanded sectional view for explaining typically the advancing state of light in the fitting part neighborhood of a pointer and a rotation axis. It is a front view of the combination meter which is another embodiment of the pointer instrument which concerns on this invention. It is sectional drawing in the meter part (fuel gauge) of the combination meter of FIG. (A) is the partial perspective view which looked at the pointer main body of the self-light-emitting pointer of the meter part of FIG. 10 from the diagonal direction, (b) is the partial side view which looked at the pointer part of the pointer main body from the width direction. . It is a figure explaining the shape when the axial part of the pointer main body of FIG. 4 and the axial part of the pointer main body of FIG. 11 are seen from the width direction of each pointer part. (A) is an expanded sectional view for demonstrating typically the advancing state of the light in the fitting part vicinity of the self-light-emitting pointer and rotation axis of FIG. 3, (b) is the self-light-emitting of FIG. It is an expanded sectional view for explaining typically the advancing state of light in the fitting part neighborhood of a pointer and a rotation axis. It is sectional drawing which shows the structure of the modification of the self-light-emitting pointer with which the meter part of FIG. 3 is provided. It is a front view of the conventional combination meter. It is a fragmentary sectional view in the meter part of the combination meter of FIG.

(Embodiment 1)
Hereinafter, the combination meter which is one Embodiment of the pointer instrument of this invention is demonstrated with reference to FIGS.

  A combination meter 90 shown in FIG. 1 includes a speedometer 92, an engine speed meter 93, a fuel meter 94, and a water temperature meter 95 as meter units arranged on the turn 10 and a warning 96 and a shift indicator 97 as various lamps. And a direction indicator lamp 98, and in a state where they are housed in the case 7 and covered with the back cover 8 and the front glass 9, the plurality of mounting portions 99 provided on the case 7 are attached to the vehicle. It is attached.

  FIG. 2 shows a cross-sectional view of the speedometer 92. The speedometer 92 includes a dial 2 having a scale 2 and an index such as a numeral, a character, or a symbol provided on the surface 2a (a surface visually recognized by a viewer), and a pointer disposed on the surface 2a of the dial 2. A self-luminous pointer 3 (hereinafter also simply referred to as “pointer 3”) as a unit, a driving device 4 having a rotating shaft 14 to which the pointer 3 is attached at the tip, a circuit pattern, an electronic component, and the like are provided and driven A wiring board 5 to which the device 4 is fixed and a plurality of light sources 6 provided on the wiring board 5 are provided.

  The dial plate 2 is a member formed in a substantially disc shape made of, for example, a transparent or translucent synthetic resin such as polycarbonate, and the light blocking area on which the light blocking ink is printed on the surface 2 a of the dial plate 2. In addition, an indicator as a translucent design formed by removing the light-shielding ink (not printing the light-shielding ink) along a shape such as a character indicating a speed or a scale is provided. Each index is visually recognized by being illuminated from the back side of the dial 2 by a light source 6 described later.

  The pointer 3 is arranged on the surface 2a side of the dial plate 2 and indicates each index provided on the dial plate 2 to display a measured amount of the vehicle speed in cooperation with each index. As shown in FIG. 3, the pointer 3 includes a pointer main body 31 as a second pointer member, a cover member 32 made of an opaque synthetic resin that covers the pointer main body 31, and the pointer 3 provided in the cover member 32. And a balance member 39 for adjusting the balance.

  As shown in FIGS. 4 (a) and 4 (b), the pointer main body 31 is integrally formed using a light-transmitting synthetic resin as a light-transmitting material such as polycarbonate resin or acrylic resin. 40 and a pointer portion 50.

  The shaft portion 40 includes a rectangular columnar shaft portion main body 41 and a planar light receiving surface 42 provided at one end 41a of the shaft portion main body 41 (that is, one end of the shaft portion). Is guided to the other end 41b opposite to the one end 41a (that is, the other end of the shaft portion). The shaft portion 40 has a square cross-sectional shape orthogonal to the axial direction, and the length of one side thereof is the same as the length in the width direction of the pointer portion 50 described later (hereinafter also simply referred to as “width of the pointer portion 50”). It is formed in a quadrangular prism shape. The shaft portion 40 is formed so as to have the same cross-sectional shape over the axial direction, and the light receiving surface 42 is also formed in the same shape as the above-described cross-sectional shape. In addition, the width direction of the pointer portion 50 is a front-back direction in FIG. The longitudinal direction of the pointer portion 50 is the left-right direction in FIG.

  The light receiving surface 42 is formed so as to have an area substantially the same as the area of the end surface 14c at the tip of the rotation shaft 14 of the drive device 4 to be described later.

  The pointer portion 50 is provided so as to be connected to the other end 41b of the shaft portion main body 41, and is one direction (that is, an instruction) that intersects the shaft center P of the shaft portion 40 at right angles (including substantially right angles). The pointing part 51 extended in the direction S1) and the rear part 52 extended shorter than the pointing part 51 in the other direction opposite to the one direction (that is, the rear end direction S2).

  The bottom surface 54, which is the surface of the pointer portion 50 directed toward the shaft portion 40, is colored white or silver by a hot stamp or the like so as to reflect light incident on the bottom surface 54 from within the pointer portion 50. The formed reflective layer 54a is provided so as to overlap. Further, a portion of the bottom surface 54 that faces an internal space of a collar portion 38c of the cover member 32 described later is subjected to a light shielding process so that light does not enter the pointer portion 50 from the portion.

  Diffusion formed on the upper surface 53, which is the surface of the pointer portion 50 facing away from the shaft portion 40, by coloring it red or the like with a hot stamp or the like so as to diffuse light emitted from the upper surface 53. The layer 53a is provided so as to overlap.

  In the following description, the description “bottom surface 54” represents the surface of the pointer portion 50 including the reflective layer 54a on the shaft portion 40 side, and the description “top surface 53” is the side opposite to the bottom surface 54. It represents the surface of the pointer portion 50 including the diffusion layer 53a. The bottom surface 54 and the reflective layer 54a, and the top surface 53 and the diffusion layer 53a will be described separately only when necessary.

  The pointer portion 50 is provided with a hollow reflecting portion 60. As shown in FIGS. 4A and 4B, the hollow reflective portion 60 is disposed in the pointer portion 50 so as to face the shaft portion 40. The hollow reflecting portion 60 has a pointing direction reflecting surface 61, a rear end direction reflecting surface 62, and a transmitting surface 63, and these three surfaces form a triangular prism-like space penetrating the pointer portion 50 in the width direction. Yes.

  The pointing direction reflecting surface 61 is formed in a substantially flat shape, and one end closer to the lower side in the drawing is disposed in the vicinity of the shaft portion 40, and from this one end toward the pointing direction S1 (left direction in FIG. 4B). Therefore, it is formed to be inclined so as to be gradually separated from the shaft portion 40 in the axial center P direction (upward direction in FIG. 4B). Thereby, the indication direction reflection surface 61 reflects a part of the light received by the light receiving surface 42 and guided to the pointer portion 50 in the shaft portion 40 in the indication direction S1, and the other part of the light is reflected. The light passes through the transmission surface 63 side.

  The rear end direction reflecting surface 62 is formed in a substantially flat shape, and one end is connected to the one end of the pointing direction reflecting surface 61, and the one end is directed to the rear end direction S2 (right direction in FIG. 4B). Accordingly, it is formed to be inclined so as to be gradually separated from the shaft portion 40 in the direction of the axis P (upward direction in FIG. 4B). That is, the rear end direction reflection surface 62 is connected to intersect the indication direction reflection surface 61. As a result, the rear end direction reflection surface 62 reflects a part of the light received by the light receiving surface 42 and guided to the pointer portion 50 in the shaft portion 40 in the rear end direction S2, and the other end of the light is reflected. The part is transmitted to the transmission surface 63 side.

  The transmission surface 63 is a plane formed between the other end of the pointing direction reflection surface 61 on the side away from the shaft portion 40 and the other end of the rear end direction reflection surface 62 on the side away from the shaft portion 40. Thus, it is disposed substantially parallel to the upper surface 53 of the pointer portion 50.

  In the hollow reflecting portion 60, a corner portion 60a formed by intersecting the indication direction reflecting surface 61 and the rear end direction reflecting surface 62 is shifted to the rear end direction S2 side with respect to the axis P of the shaft portion 40. And it arrange | positions toward the axial part 40. FIG. Of course, the arrangement of the corner portion 60a is not limited to this, and it may be arranged on the axis P or shifted to the indication direction S1 side according to the configuration of the self-light emitting pointer 3. May be.

  As shown in FIG. 3, the cover member 32 includes an upper cover 33 and a lower cover 38 that are divided into upper and lower parts.

  The upper cover 33 includes a first cover portion 34 formed in a substantially rectangular tube shape that gradually decreases from the rear end 34b toward the tip end 34a in accordance with the outer shape of the pointer portion 50 of the pointer main body 31, and the shaft of the pointer main body 31. And a second cover part 35 formed in a circular dish shape covering the periphery of the part 40. The first cover portion 34 and the second cover portion 35 are opened downward in the figure, and the pointer portion 50 of the pointer main body 31 is accommodated inside from the opening.

  The upper wall 34c of the first cover part 34 is provided with a slit 71 extending from the rear end 34b to the front end 34a. The slit 71 is formed so that when the pointer main body 31 and the cover member 32 are assembled, the upper surface 53 of the pointer portion 50 of the pointer main body 31 is exposed in a straight line over the entire longitudinal direction thereof. In addition, a pair of bosses (not shown) are formed on the inner surface of the second cover portion 35 so as to protrude downward in the figure and fit into the pair of fitting holes 38d of the lower cover 38. .

  The lower cover 38 includes a first lid 38 a having an annular plate shape formed in accordance with the opening shape of the second cover portion 35 of the upper cover 33, and the first cover 33 of the upper cover 33 that accommodates the instruction portion 51 of the pointer portion 50. From the center portion of the first lid portion 38a, a band-shaped second lid portion 38b extending in the radial direction from the first lid portion 38a, which is formed in accordance with the opening shape of the portion on the distal end side of the one cover portion 34. The first cover portion 38a is formed so as to extend downward and corresponds to the square-tube-shaped flange portion 38c into which the shaft portion 40 of the pointer main body 31 is inserted and the pair of bosses of the upper cover 33. It has a pair of fitting holes 38d and an attachment boss 38e to which the balance member 39 is attached.

  The collar portion 38 c is formed so that the cross-sectional shape orthogonal to the axial direction of the inner space is a square and the length of one side is the same as the width of the pointer portion 50. That is, the cross-sectional shape of the inner space of the collar portion 38 c is the same as the cross-sectional shape of the shaft portion 40 of the pointer main body 31. Moreover, it is preferable that the inner peripheral surface of the collar part 38c is subjected to a surface treatment (for example, matte black coating) for absorbing light.

  The lower cover 38 is assembled to the upper cover 33 to close the openings of the first cover portion 34 and the second cover portion 35, and forms a space for accommodating the pointer portion 50 of the pointer main body 31 together with the upper cover 33. And the pointer part 50 of the pointer main body 31 is fixedly accommodated in this accommodation space.

  The balance member 39 is formed with a weight set in consideration of the pointer portion 50 of the pointer main body 31, and has a fitting hole 39 a that is fitted to a mounting boss 38 e provided on the lower cover 38 of the cover member 32. Have. The balance member 39 is positioned by the mounting boss 38e and is accommodated in the cover member 32.

  The pointer 3 configured in this manner is assembled as follows, for example. First, the shaft portion 40 of the pointer main body 31 is inserted into the collar portion 38 c of the lower cover 38, the pointer main body 31 is set on the lower cover 38, and the balance member 39 is set on the lower cover 38. Then, the upper cover 33 is placed close to the pointer main body 31 so as to cover the pointer main body 31 from the upper surface 53 side of the pointer main body 31, and the pair of bosses and the lower cover 38 provided in the second cover of the upper cover 33 are covered. By fitting the pair of fitting holes 38d, the upper cover 33 and the lower cover 38 are fixed to each other, the pointer main body 31 is accommodated in the cover member 32, and the assembly is completed.

  The driving device 4 is a well-known stepping motor, and has a rotation shaft 14 formed of a light-transmitting synthetic resin such as polycarbonate resin, and a rotation shaft 14 that pivotally supports the rotation shaft 14 and is not illustrated. And a main body 15 that rotates the rotating shaft 14 according to the principle of a stepping motor in accordance with the speed measurement amount by the sensor.

  The rotation shaft 14 includes a light guide shaft portion 14a having a substantially square prism shape, and a disk-shaped flange portion 14b integrally provided near the lower end of the light guide shaft portion 14a in the drawing. ing. The rotation shaft 14 (specifically, the light guide shaft portion 14a) is formed in a quadrangular prism shape having a square cross-sectional shape orthogonal to the axial direction and the length of one side being the same as the length of the pointer portion 50 in the width direction. ing. That is, the cross-sectional shape of the rotating shaft 14 is the same as the cross-sectional shape of the inner space of the flange portion 38c. As a result, the pivot shaft 14 is fixedly attached to the upper end in the figure by fitting the distal end of the pivot shaft 14 into the collar portion 38c of the pointer 3.

  In other words, the pointer 3 is fixedly attached to the rotating shaft 14 by inserting and fitting the tip of the rotating shaft 14 into the collar portion 38c. At this time, the light receiving surface 42 of the pointer 3 is disposed to face the planar end surface 14c at the tip of the rotating shaft 14 with a slight gap. Further, the axis of the rotation shaft 14 is arranged on the same straight line as the axis P of the shaft portion 40. The rotating shaft 14 rotates the pointer 3 attached to the rotating shaft 14 and guides the light incident on the base end face 14d on the opposite side of the end face 14c on the lower side in the drawing to end face 14c. It is configured to emit light. The end surface 14c of the rotation shaft 14 functions as a light exit surface from which light guided by the rotation shaft 14 is emitted. The end surface 14c of the rotating shaft 14 may have a shape other than a flat shape, and may be a non-planar shape such as a lens shape that collects light emitted from the end surface 14c.

  The main body 15 is provided with a concave portion 15b on a bottom surface 15a that is disposed so as to overlap a wiring board 5 described later, and an end surface 14d of the rotating shaft 14 is exposed in the concave portion 15b.

  The wiring board 5 is a well-known printed circuit board provided with electronic components and wiring patterns for electrically connecting these electronic components. A driving device 4 and a plurality of light sources 6 are mounted on the surface of the wiring board 5 on the dial 2 side.

  LEDs are used for the plurality of light sources 6, and lighting and extinguishing are controlled by a control unit (not shown) provided on the wiring board 5. The plurality of light sources 6 emit light for causing the indicator of the dial 2 and the pointer main body 31 of the pointer 3 to emit light.

  One of the plurality of light sources 6 is disposed in the recess 15b of the main body 15 of the driving device 4 so as to face the end surface 14d of the rotating shaft 14 and the center thereof is collinear with the axis P of the shaft 40. Has been. Thereby, the rotating shaft 14 guides the light incident on the end surface 14d from the light source 6 and emits the light from the end surface 14c at the tip. Further, among the plurality of light sources 6, those other than those arranged opposite to the end surface 14 d of the rotating shaft 14 are arranged so as to illuminate the dial 2 from the back side. Thereby, each index provided on the surface 2a of the dial 2 emits light.

  In the speedometer 92, the light from the light source 6 is guided through the rotating shaft 14 and emitted from the end surface 14 c, and the emitted light is incident on the light receiving surface 42 of the pointer body 31 to be shaft 40. The inside is guided. Then, the light guided in the shaft portion 40 reaches the pointer portion 50, is reflected and transmitted by the hollow reflecting portion 60, and is guided in the pointer portion 50. Then, the light guided in the pointer portion 50 is reflected toward the upper surface 53 by the reflective layer 54 a and the like, and is uniformly emitted from the upper surface 53 of the pointer portion 50. Thereby, the upper surface 53 of the pointer portion 50 emits light, and the upper surface 53 is visually recognized through the slit 71 of the cover member 32.

  The engine speed meter 93 has the same configuration as that of the speedometer 92 except that the dial 2 is provided with an indicator as a translucent design such as a letter indicating the engine speed and a scale. Omitted.

  FIG. 5 shows a fuel gauge 94. The fuel gauge 94 includes a dial plate 102, a self-luminous pointer 103 as a pointer unit (hereinafter also simply referred to as “pointer 103”), and a drive device 4 including a rotary shaft 14 to which the pointer 103 is attached at the tip. And a wiring board 5 on which a circuit pattern, electronic components, and the like are provided and the driving device 4 is fixed, and a plurality of light sources 6 provided on the wiring board 5.

  The fuel gauge 94 includes a dial plate 102 having a smaller outer diameter than the dial plate 2 in the speedometer 92 described above. Except for the provision of the light emitting pointer 103, the same constituent members as the speedometer 92 are provided, so the same constituent members are assigned the same reference numerals and the description thereof is omitted.

  The dial plate 102 is a member formed in a substantially disc shape made of, for example, a transparent or translucent synthetic resin such as polycarbonate, and has an outer diameter smaller than that of the dial plate 2 described above. The surface 102a of the dial plate 102 is provided with a light-shielding area on which the light-shielding ink is printed, and an index as a translucent design formed by removing the light-shielding ink along a shape such as letters or scales indicating the remaining amount of fuel. It has been. Each indicator is visually recognized to emit light when illuminated from the back side of the dial plate 102 by a light source 6 described later.

  The pointer 103 is arranged on the surface 102a side of the dial plate 102, and displays the measured amount of the remaining fuel amount in cooperation with each indicator by indicating each indicator provided on the dial plate 102. Similar to the pointer 3 shown in FIG. 3, the pointer 103 is provided in the cover member 132, a pointer main body 131 as a first pointer member, a cover member 132 made of an opaque synthetic resin that covers the pointer main body 131. And a balance member 139 for adjusting the balance of the pointer 103.

  As shown in FIGS. 6A and 6B, the pointer main body 131 is integrally formed using a light-transmitting synthetic resin as a light-transmitting material, such as polycarbonate resin or acrylic resin. 140 and a pointer portion 150.

  The shaft portion 140 has a rectangular columnar shaft portion main body 141 and a planar light receiving surface 142 provided at one end 141a of the shaft portion main body 141 (that is, one end of the shaft portion). Is guided to the other end 141b opposite to the one end 141a (that is, the other end of the shaft portion). The shaft portion 140 is formed in a square column shape having a square cross section perpendicular to the axial direction and having a side length smaller than the width of a pointer portion 150 described later. The shaft portion 140 is formed to have the same cross-sectional shape over the axial direction, and the light receiving surface 142 is also formed to have the same shape as the cross-sectional shape.

  That is, the light receiving surface 142 is formed to have a smaller area than the light receiving surface 42 in the speedometer 92 described above. In the present embodiment, as an example, the area of the light receiving surface 142 is formed to be 70% of the area of the light receiving surface 42 in the speedometer 92.

  FIG. 7 shows a view when the light-receiving surface 42 of the speedometer 92 and the light-receiving surface 142 of the fuel meter 94 are viewed side by side from the axis P direction. In FIG. 7, M is the length of the side of the light receiving surface 42 along the longitudinal direction of the pointer portion 50, N is the length of the side of the light receiving surface 42 along the width direction of the pointer portion 50, and m is the pointer portion of the light receiving surface 142. 150 is the length of the side along the longitudinal direction of 150, and n is the length of the side of the light receiving surface 142 along the width direction of the pointer portion 150. The lengths of these sides are in a relationship of M = N, m = n, and M> n. The shapes of the light receiving surfaces 42 and 142 shown in FIG. 7 are merely examples, and the shapes of the light receiving surfaces 42 and 142 are arbitrary as long as they do not contradict the purpose of the present invention, such as a rectangle, a circle, or a polygon. . In addition, the light receiving surface 42 may have a shape other than a flat shape, and may be, for example, a non-planar shape such as a lens shape that collects light incident on the light receiving surface 42.

  The pointer 150 is connected to the other end 141b of the shaft main body 141 (that is, the other end of the shaft), and is perpendicular to the axis P from the axis P of the shaft 140 (including a substantially right angle). An indicator 151 that extends in one direction (ie, the indication direction S1) that intersects, and a rear portion 152 that is shorter than the indication 151 in another direction opposite to the one direction (ie, the rear end direction S2). ,have.

  The pointer portion 150 is formed so that the length in the longitudinal direction is shorter than the pointer portion 50 of the speedometer 92 described above, and the length in the width direction is the same as the pointer portion 50. Alternatively, the pointer portion 150 may be formed so that the length in the width direction is shorter than the pointer portion 50 of the speedometer 92 described above. Therefore, the upper surface 153 of the pointer part 150 is formed so as to have a smaller area than the upper surface 53 of the pointer part 50 of the speedometer 92 described above. In the present embodiment, the pointer portion 150 is formed so that the area of the upper surface 153 is 70% of the area of the upper surface 53. Further, the pointer portion 150 is formed so that the length in the height direction (vertical direction in FIGS. 4B and 6B) at the portion corresponding to the axis P is the same as that in the pointer portion 50. Yes.

  Regarding the bottom surface 154, the reflective layer 154a, the top surface 153, the diffusion layer 153a, and the hollow reflective portion 160 having the pointing direction reflective surface 161, the rear end direction reflective surface 162, and the transmissive surface 163 in the pointer portion 150, the speed described above. The bottom surface 54, the reflective layer 54a, the top surface 53, the diffusion layer 53a, and the hollow reflective portion 60 provided on the pointer main body 31 of the total 92 are changed in shape (mainly in size) according to the pointer portion 150. Since they have the same configuration, their descriptions are omitted. Further, the cover member 132 and the balance member 139 are also formed by changing the shape (mainly the size) of the cover member 32 and the balance member 39 provided on the pointer 3 of the speedometer 92 described above according to the pointer portion 150. Since they have the same configuration, their descriptions are omitted.

  In the fuel gauge 94, the light from the light source 6 is guided through the rotating shaft 14 and emitted from the end surface 14 c, and the emitted light is incident on the light receiving surface 142 of the pointer main body 131 to be shaft 140. The inside is guided. Then, the light guided in the shaft portion 140 reaches the pointer portion 150, is reflected and transmitted by the hollow reflecting portion 160, and is guided in the pointer portion 150. Then, the light guided in the pointer unit 150 is reflected toward the upper surface 153 by the reflective layer 154a and the like, and is uniformly emitted from the upper surface 153 of the pointer unit 150. Thereby, the upper surface 153 of the pointer part 150 emits light, and the upper surface 153 is visually recognized through the slit 71 of the cover member 132.

  The water temperature meter 95 has the same configuration as the fuel meter 94 except that the dial 102 is provided with an indicator as a translucent design such as a character indicating the water temperature and a scale, and thus the description thereof is omitted.

  The case 7 has a taper formed from the center of the wiring board 5 toward the edge of the dial plate 2 or the dial plate 102 corresponding to the speedometer 92, the engine speed meter 93, the fuel meter 94, and the water temperature meter 95. A portion 7a is provided. In addition, a back cover 8 is attached to the case 7 so as to cover the back side of the wiring board 5 (the side facing downward in FIGS. 2 and 5) so as to cover the dials 2 and 102 and the dial 10. A front glass 9 is attached.

  Next, the operation (action) according to the present invention in the above-described combination meter 90 will be described with reference to FIGS.

  8A is an enlarged cross-sectional view of the vicinity of the fitting portion between the self-luminous pointer 3 of the speedometer 92 and the rotating shaft 14, and FIG. 8B is a cross-sectional view of the self-luminous pointer 103 of the fuel meter 94. It is sectional drawing to which the fitting part vicinity with the rotating shaft 14 was expanded. 8 (a) and 8 (b), the direction of the arrows shown in the drawing schematically indicates the traveling direction of light, and the thickness thereof schematically indicates the amount of light.

  In the speedometer 92 and the fuel gauge 94, the end surface 14c of the rotating shaft 14 and the light receiving surfaces 42 and 142 are arranged to face each other with a slight space therebetween, so that the light receiving surface among the light emitted from the end surface 14c. It can be considered that the ratio of the light incident on 42 and 142 substantially coincides with the ratio of the area of the light receiving surfaces 42 and 142 to the area of the end face 14c.

  In the present embodiment, the light receiving surface 142 of the fuel meter 94 is formed so that the area thereof is 70% of the area of the light receiving surface 42 of the speedometer 92. Further, the upper surface 153 of the pointer main body 131 of the fuel gauge 94 is formed so that the area thereof is 70% of the area of the upper surface 53 of the pointer main body 31 of the speedometer 92.

  In the speedometer 92, as shown in FIG. 8 (a), the light receiving surface 42 is formed to have substantially the same size as the end surface 14c, so that the majority (approximately 100) of the light S emitted from the end surface 14c. %) Of light Sa1 is incident on the light receiving surface 42 and guided through the shaft portion 40 to the pointer portion 50, and a small portion of the light Sa2 deviates from the light receiving surface 42 and the shaft 38c of the cover member 32. The light is attenuated and absorbed through the space between the portion 40 and disappears without being guided through the shaft portion 40.

  On the other hand, in the fuel gauge 94, as shown in FIG. 8B, since the light receiving surface 142 is formed smaller than the end surface 14c, a part (about 70%) of the light S emitted from the end surface 14c. The light Sb1 enters the light receiving surface 142 and is guided to the pointer portion 150 through the shaft portion 140, and another part (about 30%) of the light Sb2 deviates from the light receiving surface 142 and the collar portion 38c of the cover member 132. Attenuates and absorbs, for example, through the space between the shaft portion 140 and the shaft portion 140, and disappears without being guided through the shaft portion 140.

  As a result, in the speedometer 92, light Sa <b> 1 having almost the same amount (100%) as the light S from the rotation shaft 14 is guided to the pointer portion 50 and travels through the pointer portion 50, and then from the upper surface 53. In the fuel gauge 94, 70% of the light Sb1 from the rotating shaft 14 is guided to the pointer portion 150 and travels through the pointer portion 150. % Of light is evenly emitted from the upper surface 153 having an area of%. Therefore, the amount of emitted light per unit area is the same on the upper surface 53 of the speedometer 92 and the upper surface 153 of the fuel meter 94.

  That is, in this embodiment, the light incident rate of the shaft portion 140 in the pointer main body 131 provided with the short pointer portion 150 (that is, the shaft portions 40 and 140 out of the light emitted from the rotating shaft 14). The ratio of the light incident on the pointer portion 50 is configured to be smaller than the light incident rate of the shaft portion 40 in the pointer main body 31 provided with the long pointer portion 50. More specifically, the area of the light receiving surface 142 in the pointer main body 131 provided with the short pointer portion 150 is smaller than the area of the light receiving surface 42 in the pointer main body 31 provided with the long pointer portion 50. It is comprised so that it may become.

  As described above, according to the present embodiment, the pointer portion 150 having a short length is provided among the pointer bodies 31 and 131 provided in the speedometer 92, the engine speed meter 93, the fuel meter 94, and the water temperature meter 95, respectively. The pointer portion 50 having a long length is the light incident rate of the shaft portion 140 in the pointer main body 131 (that is, the ratio of the light incident on the shaft portions 40 and 140 out of the light emitted from the rotating shaft 14). Therefore, the amount of light guided to the pointer portion 150 of the pointer body 131 having a short length is set to the length of the pointer main body 131 having a short length. Therefore, the amount of light emitted per unit area in the pointer main body 131 with the short pointer portion 150 can be reduced by the amount of light emitted per unit area in the pointer main body 31 with the long pointer portion 50. Close to the light output of Only, the possible average the variations in the brightness of the pointer portion 150 and a pointer part 50, it can be assumed that there is a unity visual effects their emission guidelines 3 and the self-luminous pointer 103.

  In addition, the area of the light receiving surface 142 of the pointer main body 131 having the short pointer portion 150 is configured to be smaller than the area of the light receiving surface 42 of the pointer main body 31 having the long pointer portion 50. As the areas of the surfaces 42 and 142 are smaller, the amount of light entering the shaft portions 40 and 140 can be reduced. Therefore, per unit area of the pointer main body 131 having a short length of the pointer portion 150 with a simple configuration. Of the pointer main body 31 having a long pointer portion 50 is made close to the light output amount per unit area, and the brightness variation between the pointer portion 150 and the pointer portion 50 can be averaged. The visual effect of the self-luminous pointer 103 can be made uniform.

  Further, the pointer portion 50 of the pointer main body 31 is formed to extend in the rear end direction S2 opposite to the instruction direction S1 in addition to the instruction direction S1, and the pointer main body 31 further receives light from the shaft portion 40. Since the rear end direction reflection surface 62 formed so as to be reflected toward the rear end direction S2 is integrally provided, the length of the pointer portion 50 can be further increased. Similarly, the length of the pointer portion 50 can be made longer for the pointer portion 150 of the pointer main body 131. Thereby, the visibility of the speedometer 92, the engine speed meter 93, the fuel meter 94, and the water temperature meter 95 can be improved.

(Embodiment 2)
Hereinafter, a combination meter which is another embodiment of the pointer instrument of the present invention will be described with reference to FIGS.

  The combination meter 90A of the second embodiment shown in FIG. 9 is different from the combination meter 90 of the first embodiment described above except that a fuel meter 94A and a water temperature meter 95A are provided instead of the fuel meter 94 and the water temperature meter 95. Since the configuration is the same as that of the combination meter 90, the same components are denoted by the same reference numerals, and description thereof is omitted.

  FIG. 10 shows a fuel gauge 94A. The fuel gauge 94A includes a dial plate 102, a self-luminous pointer 103A as a pointer unit (hereinafter also simply referred to as “pointer 103A”), and a driving device 4 including a rotary shaft 14 to which the pointer 103A is attached at the tip. And a wiring board 5 on which a circuit pattern, electronic components, and the like are provided and the driving device 4 is fixed, and a plurality of light sources 6 provided on the wiring board 5.

  The pointer 103A is arranged on the surface 102a side of the dial plate 102, and indicates each indicator provided on the dial plate 102, thereby displaying the measured amount of the remaining fuel in cooperation with each indicator. The pointer 103 </ b> A has the same configuration as the pointer 103 except that the pointer main body 131 </ b> A as the first pointer member includes a shaft portion 240 instead of the shaft portion 140 in the pointer 103 of the first embodiment described above.

  As shown in FIGS. 11A and 11B, the shaft portion 240 has a rectangular columnar shaft portion main body 241 and a planar shape provided at one end 241a of the shaft portion main body 241 (that is, one end of the shaft portion). A light receiving surface 242 and configured to guide light incident on the light receiving surface 242 to the other end 241b opposite to the one end 241a (that is, the other end of the shaft portion). . The shaft portion 240 is formed in a quadrangular prism shape having a square cross section perpendicular to the axial direction and the length of one side being the same as the width of the pointer portion 150. The shaft portion 240 is formed to have the same cross-sectional shape over the axial direction, and the light receiving surface 242 is also formed to have the same shape as the above-described cross-sectional shape.

  Therefore, the light receiving surface 242 is formed so that the area thereof is the same as the area of the light receiving surface 42 of the pointer main body 31. The shaft portion 240 is formed such that its axial length is shorter than the axial length of the shaft portion 40 of the pointer main body 31.

  FIG. 12 shows a view when the shaft portion 40 of the speedometer 92 and the shaft portion 240 of the fuel meter 94A are aligned and viewed from the width direction of the pointer portions 50 and 150. In FIG. 12, L is the axial length of the shaft portion 40, and l is the axial length of the shaft portion 240. These lengths have a relationship of L> l.

  Next, the operation (action) according to the present invention in the above-described combination meter 90A will be described with reference to FIGS. 13 (a) and 13 (b).

  FIG. 13A is an enlarged view of the vicinity of the fitting portion between the self-light emitting pointer 3 of the speedometer 92 and the rotating shaft 14, and FIG. 13B shows the rotation of the self-light emitting pointer 103 A of the fuel meter 94 A. It is the figure which expanded the fitting part vicinity with the moving shaft. 13 (a) and 13 (b), the direction of the arrows shown in the drawings schematically indicates the traveling direction of light, and the thickness thereof schematically indicates the amount of light.

  The amount of light per unit area of the light emitted from the end surface 14c of the rotating shaft 14 decreases as the distance from the end surface 14c increases. In the speedometer 92, since the axial length of the shaft portion 40 is relatively long, the end surface 14c of the rotating shaft 14 and the light receiving surface 42 are disposed close to each other. In the fuel gauge 94A, since the axial length of the shaft portion 240 is relatively short, the end surface 14c of the rotating shaft 14 and the light receiving surface 242 are disposed away from each other.

  In the present embodiment, assuming that the amount of light per unit area when the light emitted from the end surface 14c of the rotating shaft 14 reaches the light receiving surface 42 of the speedometer 92 is 100%, from the end surface 14c of the rotating shaft 14. The distance between the end surface 14c and the light receiving surfaces 42 and 242 (that is, the shaft portion 40 and the shaft 40) is such that the amount of light per unit area when the emitted light reaches the light receiving surface 242 of the fuel meter 94A is 70%. The length of the portion 240 is set.

  In the speedometer 92, as shown in FIG. 13A, the light receiving surface 42 is formed to be approximately the same size as the end surface 14c, and the light receiving surface 42 and the end surface 14c are arranged close to each other. Therefore, most (approximately 100%) of the light S1 emitted from the end surface 14c is incident on the light receiving surface 42 and guided to the pointer portion 50 through the shaft portion 40, and a part of the slight light. Sa2 deviates from the light receiving surface 42 and is attenuated and absorbed by traveling through the space between the collar portion 38c of the cover member 32 and the shaft portion 40, and disappears without being guided through the shaft portion 40.

  On the other hand, in the fuel gauge 94A, as shown in FIG. 13 (b), the light receiving surface 242 is formed to be substantially the same size as the end surface 14c, and the light receiving surface 242 and the end surface 14c are disposed away from each other. Therefore, a part (about 70%) of the light S1 emitted from the end surface 14c is incident on the light receiving surface 242 and guided through the shaft 140 to the pointer 150, and the other part. (About 30%) of light Sc2 is attenuated and absorbed by reaching the flange portion 38c of the cover member 132, and disappears without being guided through the shaft portion 240.

  As a result, in the speedometer 92, light Sa <b> 1 having almost the same amount (100%) as the light S from the rotation shaft 14 is guided to the pointer portion 50 and travels through the pointer portion 50, and then from the upper surface 53. In the fuel meter 94A, 70% of light Sb1 out of the light S from the rotating shaft 14 is guided to the pointer unit 150 and travels through the pointer unit 150, and then 70 % Of light is evenly emitted from the upper surface 153 having an area of%. Therefore, the amount of emitted light per unit area is the same on the upper surface 53 of the speedometer 92 and the upper surface 153 of the fuel meter 94A.

  That is, in this embodiment, the light incident rate of the shaft portion 240 in the pointer main body 131A provided with the short pointer portion 150 (that is, the shaft portions 40 and 240 out of the light emitted from the rotating shaft 14). The ratio of the light incident on the pointer portion 50 is configured to be smaller than the light incident rate of the shaft portion 40 in the pointer main body 31 provided with the long pointer portion 50. More specifically, the distance between the light receiving surface 242 and the end surface 14c of the rotating shaft 14 in the pointer main body 131A provided with the short pointer portion 150 is the pointer main body provided with the long pointer portion 50. 31 is configured to be larger than the distance between the light receiving surface 42 and the end surface 14c of the rotating shaft 14.

  As described above, according to the present embodiment, the pointer portion 150 having a short length is provided among the pointer bodies 31 and 131A provided in the speedometer 92, the engine speed meter 93, the fuel meter 94A, and the water temperature meter 95A. The pointer portion 50 having a long length is the light incident rate of the shaft portion 240 in the pointer main body 131A (that is, the ratio of the light incident on the shaft portions 40 and 240 out of the light emitted from the rotating shaft 14). Since the pointer main body 31 is provided so as to be smaller than the light incident rate of the shaft portion 40, the amount of light guided to the pointer portion 150 of the pointer main body 131A having a short length is set to the length of light. Therefore, the amount of emitted light per unit area in the pointer main body 131A having the short pointer portion 150 can be made smaller than that in the pointer main body 31 having the long pointer portion 50. Close to the light exit amount, can average the variations in the brightness of the pointer portion 150 and a pointer part 50, it can be assumed that there is a unity visual effects their emission guidelines 3 and the self-luminous pointer 103A.

  Further, the distance between the light receiving surface 242 of the pointer main body 131A having the short pointer portion 150 and the end surface 14c of the rotating shaft 14 is such that the light receiving surface 42 and the rotating shaft 14 of the pointer main body 31 having the long pointer portion 50 are long. Since the distance between the light receiving surface 242 and the end surface 14c of the rotating shaft 14 is larger, the light reaching the light receiving surface 242 is more emitted from the end surface 14c. Accordingly, the amount of light entering the shaft portion 240 can be reduced, so that the amount of light emitted per unit area in the pointer main body 131A can be reduced per unit area in the pointer main body 31 with a simple configuration. The variation in brightness between the pointer unit 150 and the pointer unit 50 can be averaged close to the amount of emitted light, and the visual effects of the self-light emitting pointer 3 and the self-light emitting pointer 103A are unified. Door can be.

  Further, the pointer portion 50 of the pointer main body 31 is formed to extend in the rear end direction S2 opposite to the instruction direction S1 in addition to the instruction direction S1, and the pointer main body 31 further receives light from the shaft portion 40. Since the rear end direction reflection surface 62 formed so as to be reflected toward the rear end direction S2 is integrally provided, the length of the pointer portion 50 can be further increased. Similarly, the length of the pointer portion 50 can be made longer for the pointer portion 150 of the pointer main body 131A. Thereby, the visibility of the speedometer 92, the engine speed meter 93, the fuel meter 94A, and the water temperature meter 95A can be improved.

  In each of the above-described embodiments, each light receiving surface is formed in a planar square, but is not limited to such a shape, and besides a square shape, a rectangle, a circle, a polygon, Alternatively, the shape of the light-receiving surface is arbitrary as long as it is not contrary to the object of the present invention as long as it is a shape capable of receiving light from the light source, such as a curved surface shape or a shape in which a plurality of surfaces are combined in addition to the planar shape.

  In addition, each shaft portion is formed in a quadrangular prism shape, but is not limited to such a shape, for example, a cylinder, a triangular prism, or a crossing from one end to the other end. The shape of the shaft portion is arbitrary as long as it is not contrary to the object of the present invention as long as it is a columnar shape such as a tapered quadrangular column whose area changes.

  In the first embodiment, the area of the light receiving surface is changed between the pointer member having a short pointer portion and the pointer member having a long pointer portion. In the second embodiment, the pointer portion has a short length. The distance between the light receiving surface and the end surface of the rotation shaft (that is, the light exit surface) is changed between the pointer member and the pointer member having a long pointer portion. However, the present invention is not limited to this. The configuration may be such that the area of the light receiving surface and the distance between the light receiving surface and the light emitting surface are changed between the pointer member having a short pointer portion and the pointer member having a long pointer portion.

  Moreover, in each embodiment mentioned above, although the pointer main body 31 was provided with the back part 52 and the rear end direction reflective surface 62, it is not limited to this. For example, like the pointer main body 331 shown in FIG. 14, the pointer main body 31 is provided with an instruction portion 351 and an instruction direction reflecting surface 361 and a rear portion and a rear end direction reflecting surface instead of the pointer portion 50. The configuration may be such that the indicator portion 350 is not provided. In this case, the length of the slit 71 of the cover member 32 is configured to be substantially the same as the length of the upper surface 353 of the pointer main body 331. The pointer member provided in another meter unit other than the meter unit including the pointer main body 331 may have the same configuration as that of the pointer main body 331.

  Further, in each of the embodiments described above, the inside of the hollow reflecting portion was hollow, but is not limited to this, a light diffusion member formed in a triangular prism shape having the same shape as the space in the hollow reflecting portion, You may make it provide in the said hollow-shaped reflection part.

  In addition, embodiment mentioned above only showed the typical form of this invention, and this invention is not limited to embodiment. That is, various modifications can be made without departing from the scope of the present invention.

3, 103, 103A Self-luminous pointer (pointer unit)
4 Driving device 6 Light source 14 Rotating shaft 14c End face (light exit surface)
31, 131, 131A Pointer body (pointer member)
40, 140, 240 Shaft part 41, 141, 241 Shaft part main body 41a, 141a, 241a One end 41b, 141b, 241b The other end 42, 142, 242 Light receiving surface 50, 150 Pointer part 60, 160 Hollow reflector 61, 161 Pointing direction reflecting surface 62, 162 Rear end direction reflecting surface 63, 163 Transmitting surface 90, 90A Combination meter (pointer meter)
92 Speedometer (meter part)
93 Engine speed meter (meter part)
94, 94A Fuel gauge (meter part)
95, 95A Water temperature gauge (meter part)
P Shaft center axis S1 Direction S2 Rear end direction

Claims (4)

In a pointer instrument provided with a plurality of meter units each including a light source, a driving device including a rotation shaft that guides light from the light source, and a pointer unit fixed to the rotation shaft,
Each of the pointer units is provided with a pointer member formed of a light guide material,
Each of the pointer members has a light receiving surface disposed at one end facing the light output portion of the rotating shaft, and a columnar shaft portion that guides light received at the light receiving surface to the other end, and A pointer portion formed extending from the other end of the shaft portion in a pointing direction intersecting the axial direction of the shaft portion, and a pointing direction reflection formed so as to reflect light from the shaft portion toward the pointing direction And the surface are integrally provided,
The light incident rate of the shaft portion in the first pointer member provided with the short pointer portion among the pointer members is the second of the pointer members provided with the long pointer portion. A pointer instrument configured to be smaller than a light incident rate of the shaft portion of the pointer member.   The pointer instrument according to claim 1, wherein an area of the light receiving surface of the first pointer member is configured to be smaller than an area of the light receiving surface of the second pointer member.   The distance between the light receiving surface of the first pointer member and the light exit surface of the rotating shaft is configured to be greater than the distance between the light receiving surface of the second pointer member and the light exit surface of the rotational shaft. The pointer instrument according to claim 1 or 2, wherein the pointer instrument is provided. The pointer portion of the pointer member is formed to extend in the rear end direction opposite to the indicated direction in addition to the indicated direction,
The back end direction reflecting surface formed so that the light from the shaft portion may be reflected toward the back end direction is integrally provided on the pointer member. The pointer instrument according to any one of 1 to 3.

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