JP5247607B2 - Illumination structure of meter device - Google Patents

Description

  The present invention relates to a meter device mounted on a vehicle or the like, and more particularly to an illumination structure of a meter device that can partially change the brightness of light applied to a dial.

  In this type of meter device mounted on a vehicle or the like, generally, a dial plate provided with hands, letters, numbers, scales, and the like is illuminated from the back side with a dedicated light source or the like. Also, in recent years, for the purpose of giving a high-class feeling and high-quality feeling, a ring member having a light guiding property is installed so as to circulate around the dial, and similarly, it is illuminated with a dedicated light source from the back side. Also known are meter devices.

  That is, as shown in FIG. 8, the meter device 100 includes a base plate 101, a dial plate 102, a ring translucent member 103, light sources 104 and 105, and a meter cover 110.

  The base plate 101 fixes a motor 107 that rotates the dial plate 102 and the pointer 106 at a predetermined position in the meter device 100.

  The dial plate 102 is, for example, a disc-shaped sheet plate that is black-printed on a thin disc-shaped sheet plate made of a transparent fabric with predetermined numbers, characters, and the like omitted. A dial shaft 106A (described later) of the pointer 106 is inserted into the dial plate 102, and the outer diameter of the pointer shaft portion 106A is such that light from the pointer light source 104 enters the periphery of the pointer shaft portion 106A. An opening 102A having a slightly larger inner diameter is formed. Further, the dial plate 102 is also formed with a window portion 102B so that light from the light source 105 is incident thereon.

  The ring translucent member 103 is a light guide frame that surrounds the display of numbers, characters, etc., and receives light from the lower surface, in a ring shape depending on the light source color or the color tone of the ring translucent member 103. Shine. The ring translucent member 103 is fixed to the facing plate 108 by heat welding or the like.

  The light sources 104 and 105 are fixed to the base plate 101 at a predetermined distance from the back surface of the dial plate 102. The light from the light source 104 is directed upward, passes through the opening 102A of the dial plate 102, and is supplied to the peripheral portion of the pointer shaft portion 106A in order to make the pointer 106 shine. The light source 105 is provided independently of the light source 104 in order to shine the ring translucent member 103.

  By the way, among the conventional meter devices as described above, there has been proposed a meter device in which the structure of the meter is simplified and a higher-class feeling is given (for example, see Patent Document 1).

  As shown in FIG. 9, the meter device 200 includes a dial plate 201 on which display information such as letters and numbers is formed, a light source 202 disposed on the back side of the dial plate 201, and a light guide and a pointer. The pointer 203 disposed so as to rotate on the front side of the dial plate 201 around the shaft portion 203A and the pointer shaft portion 203A are inserted, and the light from the light source 202 is incident on the proximal end portion of the pointer 203. As described above, in addition to the opening 201A having an inner diameter slightly larger than the outer diameter of the pointer shaft portion 203A in the central portion of the dial plate 201, the display portion such as characters and numbers is circulated. The frame 201 is provided on the front side of the dial 201, and includes a ring member 204 having a glossy inner peripheral surface having a convex cross section that gradually opens in a curved manner toward the outside. In the figure, reference numeral 205 denotes a base plate, 206 denotes a turn-back plate, 207 denotes a motor, 207A denotes a rotating shaft of the motor 207, and 210 denotes a cover glass.

  According to the meter device 200, the light from the light source 202 disposed on the back side of the dial plate 201 enters the peripheral portion of the pointer shaft portion 203A and travels toward the tip portion of the pointer 203 as shown in FIG. As it progresses, it leaks from the opening 201A of the dial 201 and proceeds toward the inner peripheral surface 204A of the ring member 204. Then, the leaked light (halation light) is reflected by the inner peripheral surface 204A and travels forward of the dial plate 201 (upper viewer's eyes in the figure). That is, ring-shaped reflected illumination is performed using leaked light.

JP 2003-222539 A

  However, in such a meter device 200, the leaked light transmitted through the gap between the proximal end portion of the above-mentioned pointer 203 and the pointer shaft portion 203A provided on the proximal end portion and the hole 201A of the dial plate 201. (Halation light) is not necessarily illuminated with uniform brightness on the entire surface of the dial 201.

  Therefore, for example, as shown in FIG. 10, the opening 201A of the dial 201 has a symmetrical shape over the entire circumference, that is, the height of the central wall 220A is made constant over the entire circumference. There has also been proposed an auxiliary attachment of the member 220.

  By the way, the light intensity of the illumination light emitted from the light source 202 is constant. However, if the ring member 204 is not uniform in color, surface processing, material, etc., as shown in FIG. 11, for example, as shown in FIG. If the portion 204B having a high rate is mixed, illumination with uniform brightness cannot be obtained.

  The present invention has been made in view of the above-described circumstances, and an object of the present invention is to illuminate a meter device that can easily and locally change brightness according to an illumination area with a simple structure. To provide a structure.

In order to achieve the above-described object, an illumination structure of a meter device according to the present invention is characterized by the following (1) to (5).
(1) a display board having a light hole portion opened near the center,
A pointer disposed on the surface side of the display board;
A light source disposed on the back side of the display board;
A ring member that projects along the outer periphery of the display plate and reflects the leaked light from the light source that propagates toward the outer peripheral edge of the display plate to leak and illuminate the display plate;
An illumination structure of a meter device comprising:
A light amount control member that is concentrically attachable to the light hole portion and has a substantially cylindrical upright wall portion formed in an inner peripheral hole,
The height of a part of the wall is different from the height of the wall of the other part, and the rising wall part is configured to adjust the brightness of the leaked light from the light source.
(2) In the illumination structure of the meter device according to (1),
The rotating shaft of the motor for rotating the pointer, which is integrally attached to the pointer base, is inserted into the light hole portion,
The light source is provided directly below the light amount control member,
The light that has passed through the light hole part leaks from between the pointer base part and the standing wall part of the light quantity control member.
(3) In the illumination structure of the meter device according to (1),
The rotation shaft of the motor for rotating the pointer, which is integrally attached to the pointer base, is inserted into a shaft hole formed in the display plate,
The light source is provided immediately below the light amount control member provided in the light hole portion near the shaft hole,
The light that has passed through the light hole part leaks from between the pointer base part and the standing wall part of the light quantity control member.
(4) In the illumination structure of the meter device according to any one of (1) to (3),
The light quantity control member has a leg portion that is engaged with a base plate fixed to the vehicle body side.
(5) In the illumination structure of the meter device according to any one of (1) to (3),
The light quantity control member has a height of the upright wall portion according to a light absorption characteristic at each part of the ring-shaped member.

According to the illumination structure of the meter device described in the above (1), for example, by a simple structure in which the height of the standing wall portion of the light amount control member is changed corresponding to the direction of the circumferential angle of the display board, for example, the instrument The brightness of illumination light in a meter such as a plate can be made uniform. In other words, the brightness in the direction of a desired angle in a predetermined illumination area can be freely changed with a simple structure.
According to the illumination structure of the meter device described in the above (2), the rotation shaft of the motor is inserted into the light hole portion of the light quantity control member, and there is no need to frequently provide a shaft hole exclusively for the rotation shaft in the display board. An illumination structure with a simple structure can be provided.
According to the illumination structure of the meter device described in (3) above, by providing a dedicated shaft hole through which the rotation shaft of the motor is inserted, a light source is installed directly below the light hole without being obstructed by the rotation shaft. Therefore, the cost can be reduced as much as one light source is sufficient.
According to the illumination structure of the meter device described in the above (4), the central portion of the display plate can be stably supported by the leg portion of the light amount control member attached to the light hole portion, and the standing wall portion and the pointer of the light amount control member Further, since the width of the gap between the lower surface of the cap and the cap can be kept constant at all times, it is possible to suppress fluctuations in the amount of light of the leakage illumination.
According to the illumination structure of the meter device described in the above (5), for example, as a ring-shaped member, the light absorption characteristics specified by the light reflectance, light absorption rate, light transmittance, scattering rate, etc. are partially different Even when the light source is used, uniform leakage illumination can be realized by changing the height of the standing wall portion of the light amount control member so as to cancel the partial difference. As a result, even if the same ring member is used, a wide range of lighting options can be set easily and at low cost according to the user's preferences, such as leaky lighting with different brightness, gradation lighting, and uniform leaky lighting. .

  According to the illumination structure of the meter device of the present invention, for example, even when the reflectance of the ring-shaped member is different in each angular direction, the height of the standing wall portion is also different in each angular direction corresponding to the reflectance. By changing, there is an advantage that the amount of leakage light after reflection in all directions of the ring-shaped member can be made uniform.

  The present invention has been briefly described above. Further, details of the present invention will be further clarified by reading through the modes for carrying out the invention described below with reference to the accompanying drawings.

It is a top view which shows the combination meter to which the illumination structure concerning this invention was applied. It is the II-II sectional view taken on the line of FIG. 1 which shows the meter apparatus which concerns on the 1st Embodiment of this invention. It is a perspective view which shows the light quantity control member used for the illumination structure of the meter apparatus of FIG. It is principal part sectional drawing of the meter apparatus of FIG. (A) is explanatory drawing which shows the meter apparatus with which the illumination structure which concerns on the 2nd Embodiment of this invention was applied, (B) is a graph which shows the change of the brightness according to the angle in the leak illumination of the meter apparatus. And a cam diagram showing the height of the light quantity control member. (A) is explanatory drawing which shows the leakage illumination light in the part with the high light absorption rate in the ring member of the illumination structure which concerns on the 3rd Embodiment of this invention, (B) is the leakage in the part with the low light absorption rate similarly. It is explanatory drawing which shows illumination light. (A) is a top view which shows the meter apparatus with which the illumination structure concerning the 4th Embodiment of this invention was applied, (B) is sectional drawing which shows the principal part of the meter apparatus. It is principal part sectional drawing which shows the conventional illumination structure. It is principal part sectional drawing which shows the other conventional illumination structure. (A) is principal part sectional drawing which shows the modification of the illumination structure shown in FIG. 9, (B) is a perspective view which shows the auxiliary member attached in addition to it. FIGS. 10A and 10B show the operational effects of the illumination structure shown in FIG. 10, where FIG. 10A is a reflection state of light at a portion having a low light absorption in the ring member, and FIG. It is explanatory drawing which shows the reflective state of light.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
(First embodiment)
FIG. 1 shows a combination meter 1 to which the illumination structure of the present invention is applied.
The combination meter 1 is composed of instruments such as a fuel gauge section 2, a tachometer section 3, a speedometer section 4, and a water temperature gauge section 5. These instruments have a display board (hereinafter referred to as “character board”) for displaying necessary information relating to the car itself or the environment around the car, such as numbers, letters, and symbols. The facing plate 6 forming the surface side of the combination meter 1 has various display windows 6A for installing the above-described instruments, and is integrated with a meter case 7 constituting the side surface and the back surface side. Further, the combination meter 1 is covered with a transparent cover glass 8 such as black.

  Dials 21, 31, 41, and 51 of instruments such as each fuel gauge section 2, tachometer section 3, speedometer section 4, and water temperature gauge section 5 are supplied from a dial plate light source corresponding to each dial plate. Illuminated from the back by the light. Further, the pointers 22, 32, 42, and 52 corresponding to the dial plates 21, 31, 41, and 51 are also illuminated by the light supplied from the pointer light sources. That is, the combination meter 1 can be lighted in a time difference manner in the order of the pointer and the dial. Of course, the pointer and dial can be illuminated and illuminated simultaneously. Thereby, in response to lighting, each display information is visually recognized from the surface of the combination meter 1 so as to clearly come out.

  Further, the circular analog type fuel gauge unit 2, tachometer unit 3, speedometer unit 4 and water temperature meter unit 5 have ring members 23, 33, 43 so as to go around the outer edge of each dial, respectively. , And 53. Each ring member 23, 33, 43, and 53 is illuminated in a ring shape by utilizing light leakage from a pointer light source disposed on the back side of the dial during pointer illumination.

Next, the structure of each instrument will be described using the speedometer unit 4 as an example, but this configuration is the same for other analog-type instruments.
FIG. 2 is a cross-sectional view showing a speedometer 4A that is the meter device 10 of the first embodiment to which the illumination structure according to the present invention is applied. The speedometer 4A of the meter device 10 includes a dial plate 11 (same as the dial plate 43 in FIG. 1) constituting the display plate, and a ring member 12 (in FIG. 1) fitted to the outer peripheral edge of the dial plate 11. 1), a pointer 13 disposed on the front side of the dial 11 (same as the pointer 42 in FIG. 1), a cap 14 placed on the pointer 13, and a back side of the dial 11. A light source 15, a light amount control member 16 attached to a later-described light hole portion 11 </ b> A of the dial 11, and a motor 17 that rotates the pointer 13.

  The dial plate 11 is formed of a transparent (or translucent) appropriate material, and has a light hole portion 11A opened in the center portion, and the speed of the vehicle is increased on the surface near the outer peripheral edge portion. A number is displayed. A dial plate 11 to which a ring member 12 to be described later is fixed is fitted to the display window 6A of the facing plate 6 while being mounted on a base plate 71 constituting a part of the meter case 7 (see FIG. 1). The

  In the ring member 12, an inner peripheral surface 121 that expands toward the front side (upward in FIG. 2) where the cover glass 8 is provided constitutes a reflection surface on which leakage light is incident and illuminated in a ring shape. Here, the leakage light is light (halation light) that is emitted from the light source 15, passes through the light hole portion 11 </ b> A of the dial 11, and leaks from the gap between the base portion 132 of the pointer 13 and the light amount control member 16. That's it.

  The inner peripheral surface 121 is configured to have a uniform reflectivity by depositing a uniform reflection film over the entire circumference of 360 degrees. However, the light amount control member 16 (to be described later) controls the amount of leakage light (light illuminance). The amount of light reflected by the inner peripheral surface 121 can be changed according to the change.

  In addition, the ring member 12 advances a part of the leaked light reflected by the inner peripheral surface 121 toward the eyes of the viewer, and at the same time, a part of the leaked light reflected by the inner peripheral surface 121 Advancing in the direction of the surface of the dial 11 toward the direction of the pointer 13, leakage illumination is performed on the surface of the dial 11.

  The pointer 13 is made of a light-guiding (or opaque) material, and has a main body portion 131 having a tapered shape toward the distal end side, and a base portion 132 for fitting the rotating shaft 17A of the motor 17 to the lower portion. .

  The cap 14 is attached to the pointer 13, and a gap d is formed between each lower surface of the cap 14 and the pointer base portion 132 and the upright wall portion 163 of the light amount control member 16, thereby emitting light from the light source. The light that has passed through the portion 11A is prevented from traveling directly toward the upper side of the display plate 11 (cover glass 8). That is, with respect to the light from the light source 15 that has passed through the light hole portion 11A, the light traveling path is deflected by approximately 90 degrees by passing through the gap d, and at the same time, radially along the surface of the dial 11. Optical processing as diffused leakage light. Thereby, it can also be avoided that the light from the light source 15 enters into a viewer's eyes directly.

  The light source 15 emits visible light having a predetermined wavelength, and the light from the light source 15 entering the light hole portion 11A has no direction dependency, and a uniform amount of light enters the entire circumference. ing. In the present embodiment, as shown in FIG. 4, a later-described through-hole portion 162 (constituting an inner peripheral hole) of the light amount control member 16 concentrically installed in the light hole portion 11 </ b> A serves as a rotation shaft of the motor 17. The shaft hole through which 17A is inserted is also used, and the rotation shaft 17A of the motor 17 passes through the center of the through-hole portion 162 of the light quantity control member 16. That is, the light source 15 cannot be installed at the center of the through-hole portion 162 because the motor rotation shaft 17A becomes an obstacle. Therefore, in the present embodiment, in order to allow a uniform light amount to enter the light hole portion 11A, a plurality of LEDs are concentrically and equiangularly arranged around the rotation shaft 17A so as to avoid the rotation shaft 17A. It is.

  The light quantity control member 16 is formed in a substantially cylindrical shape using an opaque material that does not transmit light from the light source. As shown in FIG. 3, the light quantity control member 16 of the present embodiment includes a main body part 161 having a substantially ring shape, a through hole part 162 opened in a perfect circle shape on the center side of the main body part 161, and a through hole part. It has a substantially cylindrical upright wall portion 163 formed so as to extend upward from the wall surface of 162, and a leg portion 164 extending downward from the main body portion 161.

  The standing wall portion 163 makes it possible to appropriately adjust the intensity of leaked light at each radial direction angle (hereinafter referred to as angle θ) on the surface of the display panel 11 according to the height in each phase direction. In particular, in the present invention, the height of the wall of the upright wall portion 163 is not the same height over the entire circumference of 360 degrees, but is changed in an appropriate shape so that the surface of the dial 11 and the ring member 12 can be changed. The brightness of illumination (leakage illumination) due to leaked light on the peripheral surface 121 can be freely changed according to the direction of the angle θ.

  In the present embodiment, for example, when the 6 o'clock position on the timepiece on the dial 11 is the origin (angle 0 degree) O, the standing wall portion corresponding to the area where the number between the numbers 0 and 180 is not described In the region at 163, the height of the wall is increased.

  That is, in FIG. 3, the upright wall portion 163 of the light quantity control member 16 is an area corresponding to the area of the angle θ where the speed display numeral on the dial 11 is not described (hereinafter referred to as a non-numeral area). ) The wall height in the region where the angle θ is −α (rad) to + α (rad), which is 163A, is formed high (h1). On the other hand, in the region 163B corresponding to the other angle (hereinafter referred to as a numerical description region) 163B, the wall of the standing wall portion 163 is formed at a constant height (h2) lower than the wall in the numerical non-described region 163A. doing.

  Accordingly, in FIG. 4, in the non-numerical region 163A, that is, in the angle direction in which the height of the wall is high (h1), between the lower surfaces of the cap 14 and the pointer base 132 and the standing wall 163 of the light amount control member 16 The gap becomes narrower (d1), and the amount of leaked light passing therethrough is reduced, and leaky illumination with low illuminance (Lx) is performed.

  On the other hand, in the numerical description area 163B, that is, the area in the angular direction where the height of the wall is low (h2), there is a wide gap between the lower surfaces of the cap 14 and the pointer base 132 and the standing wall 163 of the light quantity control member 16 ( d2), the amount of light passing through the leaked light is reduced accordingly, and the leaky illumination is performed with high illuminance (Lx).

  The lower portion of the leg portion 164 is fixed to the lamp mounting substrate 72 to which the motor 17 is attached, and supports the central portion of the dial 11. Furthermore, the leg portion 164 is disposed outside the light source 15 to surround the light source 15, thereby guiding the light from the light source 15 toward the upper side of the light hole portion 11 </ b> A of the dial 11 without leaking as much as possible. It has the function of making it light at the same time.

  As described above, the motor 17 is fixed to the lamp mounting substrate 72 and rotates the pointer 13. The rotation shaft 17A of the motor 17 is inserted into the base portion 132 of the pointer 17. Further, the motor 17 rotates the pointer 17 by a predetermined angle based on a sensor signal corresponding to a speed detected by a sensor (not shown), and instructs a specific number formed on the dial 11.

  Therefore, according to this embodiment, even if the ring member 12 having uniform reflection characteristics is used, only a specific angle region provided with a number indicating the speed can be brightly leaked and illuminated. In other words, the cost of changing the reflectivity at the inner peripheral surface 121 of the ring member 12 by appropriately changing the angle according to the angle is not required, and in other words, it is an inexpensive product having a uniform reflectivity over the entire circumference. Even if it is a ring member, the brightness of the above-mentioned leakage illumination can be changed suitably. As a result, for example, the lighting structure that brightens only the area where the speed display numbers are written to improve the visibility and thus the safety, and gives the sense of luxury by giving the lighting brightness strength and strength. Can be realized at low cost.

(Second Embodiment)
Next, a second embodiment of the present invention will be described in detail with reference to FIG. In the present embodiment, the same parts as those in the first embodiment are denoted by the same reference numerals to avoid redundant description.
The speedometer 4B of the meter device according to the present embodiment is different from the speedometer 4A according to the first embodiment in that the leakage illumination on the dial plate 11 has a large speed display number as shown in FIG. By illuminating at such bright and high illuminance, it is a gradation illumination that gradually increases the amount of light in order to visually urge attention to high speed driving.

  For this reason, in this embodiment, as shown in FIG. 5B, the height (h) of the upright wall portion 163 of the light quantity control member 16 is reduced within a predetermined angle range (number 0 to number 180). The configuration is as follows. On the other hand, as the ring member, a member in which a uniform reflection film is formed over the entire inner peripheral surface is used.

  That is, in the area corresponding to the number 0 displayed on the surface of the dial plate 11, the leakage illumination with the minimum light amount is performed, and in the area corresponding to the number 180, the leakage illumination with the maximum light amount is performed. The standing wall portion 163 is formed in such a shape that the height (h1) at the angle (β1) corresponding to the number 0 is the maximum and the height (h2) at the angle (β2) corresponding to the number 180 is the minimum. The

  Therefore, according to the present embodiment, as in the first embodiment, the ring member having a uniform reflectance over the entire circumference is inexpensive, but the speed display numbers on the surface of the dial 11 are described. With respect to the angle area, the brightness of the leakage illumination is gradually increased as the number increases. As a result, as the speed increases, the ring member is lighted in a leak manner so that it gradually floats brightly so that the driver is visually warned. This further enhances safety as well as visibility. Moreover, even with an inexpensive ring member, high-quality gradation illumination can be realized.

(Third embodiment)
Next, a third embodiment of the present invention will be described in detail with reference to FIG. In the present embodiment, the same parts as those in the first and second embodiments are denoted by the same reference numerals to avoid redundant description.
The speedometer 4C of the meter device of this embodiment is different from the speedometers 4A and 4B of the first and second embodiments in that the ring member 12 has a light absorption characteristic (light transmittance, light reflectance) according to the angle. The standing wall portion of the light quantity control member 16 is offset so as to cancel out the change in the transmittance of the inner peripheral surface 121 described above. The height (h) of 163 is changed to change to a uniform illumination structure.

  That is, in the ring member 12 of the present embodiment, as shown in FIG. 6 (A), a standing wall in an angular direction corresponding to a high absorption portion 12A (for example, a black or cold colored portion) having high light absorption. The height at the portion 165A is formed low. On the other hand, as shown in FIG. 6B, the height of the standing wall portion 165B in the angular direction corresponding to the low absorption portion 12B (for example, a white colored portion) having low light absorption is set to the standing wall. Compared to the height of the portion 165A, the height is increased at a rate corresponding to the absorption rate.

  Therefore, according to the present embodiment, for example, a high-quality illumination structure in which the brightness of the illumination is sharpened by using the ring member 12 having a change in light absorption is provided as standard. Even so, by adding the light amount control member 16 whose height (h) of the standing wall portion 163 is changed and installing it, it is possible to easily change to a uniform illumination structure. Therefore, for example, the lighting function can be easily changed according to the user's preference, such as leaky lighting with partially different brightness, uniform leaky lighting, gradation lighting, etc., and a wide range of optional lighting structures can be realized at low cost It becomes.

(Fourth embodiment)
Next, a fourth embodiment of the present invention will be described in detail with reference to FIG. In the present embodiment, the same parts as those in the first to third embodiments are denoted by the same reference numerals to avoid redundant description.
The illumination structure in the tachometer unit 3 which is the meter device of the present embodiment is different from the illumination structure of the other embodiments in that the rotating shaft 35A of the motor 35 is inserted through the light hole 311 of the dial 31. Rather than that, it is attached to a dedicated shaft hole 312 drilled in the dial 31 via a bearing 313, the point that the light source is composed of one, and the cap 34 is another implementation. It is a point that is larger than the cap 14 of the illumination structure of the form.

  In the present embodiment, the rotary shaft 17A inserted through the light hole 311 of the dial 31 is removed (moved to another location), in other words, from the light hole 311 of the dial 31 to the light source By removing the rotating shaft 17A, which has been an obstacle when being installed at the center, the single light source 36 can be installed on the lamp mounting substrate 72 directly below the light hole portion 311 of the dial 31. Thereby, it is not necessary to install a plurality of light sources radially around the rotation shaft 17A as in the illumination structure of the other embodiments, and the cost can be reduced by configuring the light source 36 as one.

  In general, the rotation shaft 35A of the motor, that is, the rotation center of the pointer 32 is set at the center of the display plate 31, and therefore the shaft hole 312 through which the rotation shaft 35A of the motor 35 is inserted also in the display plate 31 of this embodiment. Is drilled in the center of the display plate 31. On the other hand, the light hole portion 311 of the dial 31 is shifted from the installation position of the rotation shaft 17A, so that the rotation shaft 17A is removed from the light hole portion 311. That is, the light hole portion 311 of this embodiment is formed so as to be shifted somewhat upward from the shaft hole 312 as shown in FIG.

  The cap 43 is attached in a state of being biased with respect to the base 321 of the pointer 32 as shown in FIG. The cap 43 has a substantially inverted V-shape so that the light hole 311 of the dial 31 and the through hole 162 of the light quantity control member 16 can be always covered from above with a predetermined gap. Forming. Thereby, while the pointer 32 rotates in an angle region corresponding to the numbers 0 to 180, the lower surface of the cap 43 can always cover these from above in a state of being close to the light hole portion 311 and the through hole portion 162. it can. That is, it can be avoided that the light from the light source 36 that has passed through the through-hole portion 162 travels directly upward. That is, leakage light can always be formed from the light emitted from the light source 36.

  In addition, since the covering amount (area) of the standing wall portion 163 of the light amount control member 16 around the through-hole portion 162 by the cap 34 varies depending on the direction of the angle, the height of the standing wall portion 163 has a height corresponding to the excessive covering amount by the cap 34. Is formed. As a result, uniform leaky illumination is possible regardless of the angle. Further, instead of setting the amount of leaked light uniformly, an illumination structure that increases the amount of leaked illumination or performs gradation illumination only in the numerical display portion as in the illumination structure of other embodiments may be used. In that case, the height of the upright wall portion 163 of the light quantity control member 16 may be formed in consideration of the amount of covering by the cap 34 and the light transmittance (light transmittance or reflectance) of the ring member.

  Therefore, according to the present embodiment, since only one light source 36 is required, the cost can be reduced.

DESCRIPTION OF SYMBOLS 1 Combination meter 2 Fuel meter part 3 Tachometer part 4, Speedometer part 4A, 4B, 4C Speed meter 5 Water temperature gauge part 6 Turn-up plate 6A Display window 7 Meter case 8 Cover glass 10 Meter apparatus 11, 21, 31, 41, 51 Dial 11A Light hole portion 311 Light hole portion 312 Shaft hole 313 Bearing 12, 23, 33, 43, 53 Ring member 12A High absorption portion 12B Low absorption portion 121 Inner peripheral surface 13, 22, 32, 42, 52 Pointer 131 Main body Portion 132 Base portion 14, 34 Cap 15, 36 Light source 16 Light amount control member 161 Body portion 162 Through-hole portion (inner peripheral hole)
163 Standing wall part 163A Number non-display area 163B Number writing area 164 Leg part 165A Standing wall part 165B Standing wall part 17, 35 Motor 17A, 35A Rotating shaft 71 Base plate 72 Lamp mounting board d Gap θ angle

Claims (5)

A display panel having a light hole portion opened near the center,
A pointer disposed on the surface side of the display board;
A light source disposed on the back side of the display board;
A ring member that projects along the outer periphery of the display plate and reflects the leaked light from the light source that propagates toward the outer peripheral edge of the display plate to leak and illuminate the display plate;
An illumination structure of a meter device comprising:
A light amount control member that is concentrically attachable to the light hole portion and has a substantially cylindrical upright wall portion formed in an inner peripheral hole,
An illumination structure for a meter device, wherein the brightness of leaked light from the light source can be adjusted by the standing wall part having a height of a part of a wall different from that of another part of the wall. The rotating shaft of the motor for rotating the pointer, which is integrally attached to the pointer base, is inserted into the light hole portion,
The light source is provided directly below the light amount control member,
The illumination structure of the meter device according to claim 1, wherein the light that has passed through the light hole part leaks from between the pointer base part and the standing wall part of the light quantity control member. A rotating shaft integrally attached to the pointer base of the motor for rotating the pointer is inserted into a shaft hole formed in the display plate,
The light source is provided immediately below the light amount control member provided in the light hole portion near the shaft hole,
The illumination structure of the meter device according to claim 1, wherein the light that has passed through the light hole part leaks from between the pointer base part and the standing wall part of the light quantity control member.   4. The illumination structure of a meter device according to claim 1, wherein the light quantity control member has a leg portion that is engaged with a base plate fixed to the vehicle body side.   5. The meter device according to claim 1, wherein the light amount control member has a height of the upright wall portion corresponding to a light absorption characteristic at each portion of the ring-shaped member. Lighting structure.

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