JP5246477B2 - Vehicle instrument - Google Patents

Description

  The present invention relates to a vehicle meter for displaying vehicle information, and more particularly to a so-called monocular aftermeter in which a single analog display unit is housed in a case.

As a vehicle instrument for displaying various vehicle running conditions (hereinafter referred to as vehicle information) such as vehicle speed, engine speed, water temperature, hydraulic pressure, etc., for example, a pointer is attached to a drive body, and the pointer is rotated on a display board. A single analog display unit that displays the measured amount indicating the vehicle information by moving the case is housed in the case body, and the vehicle information is monitored in more detail separately from the combination meter normally mounted on the vehicle. There is a so-called monocular aftermeter (see, for example, Patent Document 1).
JP-A-6-38593 JP 2001-304922 A

  In such a monocular aftermeter, in recent years, further improvements in design and visibility have been demanded. As a means for improving visibility and design in a vehicle meter, a method of providing a translucent ring-shaped member around the display board and transmitting the ring-shaped member through transmission as disclosed in Patent Document 2 is known. It has been.

  However, the method of providing the ring-shaped translucent member described above relates to a combination meter having a plurality of analog display units and digital display units. Even if this configuration is applied to a monocular aftermeter as it is, The type of after-meter has a problem that the space around the display board is narrow, and even if the ring-shaped member is disposed on the display board, it is difficult for the user to sufficiently recognize the light emission of the ring-shaped member.

  Accordingly, the present invention has been made paying attention to the above-described problems, and improves visibility and design in a so-called monocular aftermeter in which a single analog display unit is housed in a case body. An object of the present invention is to provide a vehicle instrument that can be used.

In order to solve the above problems, the present invention provides a single analog display unit having a display board on which an indicator part is formed and a pointer that rotates on the display board to indicate the indicator part. An instrument for a vehicle housed in a body, wherein the indicator is disposed on a rear surface side of the display plate, and a transmissive or semi-transmissive cover member that covers the analog display portion exposed from the case body. A first light source that emits a first illumination light that illuminates the display plate, a second light source that is disposed on the rear side of the display plate and emits a second illumination light that illuminates the display plate, and the display plate The analog display unit is disposed between the diffuser plate disposed between the second light source and diffusing the second illumination light, and the cylindrical case body and the cover member. The second is disposed opposite to the outer peripheral portion of the diffusion plate and emitted from the outer peripheral portion. An incident portion for the incident illumination light, the second illumination light incident from the incident portion have a, a reflective portion for reflecting the display panel and the vertical direction, the outer periphery of the front cover member is emission in a ring shape As described above, a transmissive ring-shaped member that emits the second illumination light through the cover member is provided.

  Further, the ring-shaped member is characterized in that a light shielding layer is formed on a side surface portion.

  In addition, a light guide member that receives the first illumination light and emits the light toward the pointer is provided.

  The cover member includes a step portion on an outer peripheral side, and the ring-shaped member is disposed at a position facing the step portion.

  The present invention relates to a vehicle instrument for displaying vehicle information, and in a so-called monocular aftermeter in which a single analog display unit is housed in a case, visibility and design can be improved. Is.

  DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiments to which the present invention is applied will be described below with reference to the accompanying drawings. FIG. 1 shows the appearance of a vehicle meter, and FIG. 2 shows a cross-sectional view of the vehicle meter. The vehicle meter includes a display unit 1, a meter case (case body) 2, a front cover (cover member) 3, a turning member (ring-shaped member) 4, a first light source 5, and a second light source 6. And the light guide member 7 and the diffusion plate 8.

  The display unit 1 is an analog display unit having a pointer 11 and a display plate 12, and is housed in the meter case 2, and is arranged so that the pointer 11 and the display plate 12 are exposed from the opening 21. The user can read the vehicle information by contrast reading between the pointer 11 and the analog indicator portion 12a printed on the display board 12. In the present embodiment, the display unit 1 is a turbometer that displays a supercharging pressure (positive pressure) and a negative pressure in the intake manifold of the turbo engine as the vehicle information, and the pressure is in a range from −100 kPa to 120 kPa. It is possible to display.

  The pointer 11 is a light shielding member that covers an instruction portion 11a made of a permeable resin material, a pointer base portion 11b that is fixed to a rotary shaft 13a provided in a stepping motor 13 that is a rotation drive member, and a front surface of the pointer base portion 11b. And a pointer cap 11c made of a black synthetic resin material. A red foil is hot stamped on the rear side of the instruction unit 11a. The pointer 11 rotates on the display board 12 according to the rotation of the stepping motor 13, and indicates the analog indicator part 12a on the display board 12 by the instruction part 11a. The pointer 11 is illuminated with a predetermined color by transmitting the first illumination light L1 from the first light source 5 disposed in the meter case 2.

  The display board 12 is formed by printing a light-shielding layer with light-shielding ink on the front side of the transmissive substrate except for the portion that becomes the analog indicator portion 12a, and white ink on the rear side except for the portion facing the analog indicator portion 12a. The reflective layer is printed by coating. The analog indicator portion 12a has a plurality of indicators that are formed in a substantially arc shape, including scales and numbers. The analog indicator 12a is formed such that the minimum scale position is the 6 o'clock position of the clock scale position, and the maximum scale position is the 3 o'clock position of the clock scale position. Further, the display board 12 is illuminated with a predetermined display color when the second illumination light L2 from the second light source 6 disposed in the meter case 2 passes through the analog indicator portion 12a.

  The meter case 2 is a substantially cylindrical case body made of a metal material such as aluminum, for example, and accommodates various members constituting the vehicle instrument. The meter case 2 has an opening 21 that exposes the display unit 1 on the front side. In addition, a partition wall 22 is provided in the meter case 2 to divide the illumination areas of the first and second light sources 5 and 6.

  The front cover 3 is made of, for example, a transparent synthetic resin material or a dark semi-transparent synthetic resin material such as black, and covers the opening 21 of the meter case 2. Further, the front cover 3 includes a step portion 31 on the outer peripheral side, and has a shape in which the central portion protrudes forward from the outer peripheral side.

  The facing member 4 is a ring-shaped member disposed so as to surround the display unit 1 between the meter case 2 and the front cover 3. The facing member 4 is formed by integrally forming an impermeable resin material and a permeable resin material, and light shielding light made of an impermeable resin material on both sides of the transmissive layer 41 made of a permeable synthetic resin material. It is formed so as to be sandwiched between the layers 42 and 43. The facing member 4 is disposed at a position facing the step portion 31 of the front cover 3. The transmissive layer 41 protrudes to the rear surface side, faces the outer peripheral portion 8a of the diffusion plate 8, and enters the incident portion 44 that receives a part of the second illumination light L2 from the second light source 6 leaking from the outer peripheral portion 8a. A reflection unit 45 that reflects the second illumination light L <b> 2 incident from the unit 44 in a direction perpendicular to the display panel 12. In other words, the transmission layer 41 is transmitted and illuminated by the second illumination light L2. The light shielding layer 42 formed on the inner side surface of the facing member 4 prevents the second illumination light L2 passing through the transmission layer 41 from being irradiated in the central direction of the display unit 1 and is emitted in the front side direction. Like that. Further, the light shielding layer 43 formed on the outer side surface of the turning member 4 prevents the second illumination light L2 transmitted through the transmission layer 41 from leaking from the side to the outside, and is emitted in the front side direction. To do.

  The first light source 5 is made of, for example, a light emitting diode (LED), and is disposed on the rear surface side of the display panel 12 to emit the first illumination light L1 that illuminates the pointer 11. In the present embodiment, the first illumination light L1 exhibits a red emission color.

The second light source 6 is made of, for example, an LED , and is arranged on the rear surface side of the display plate 12 to emit second illumination light L2 that illuminates the display plate 12. In the present embodiment, the second illumination light L2 has a different emission color from the first illumination light L1, and exhibits a white emission color.

  The light guide member 7 is a transparent member made of a transparent synthetic resin material such as polycarbonate or acrylic, and is disposed in the meter case 2 so as to be positioned between the pointer 11 and the first light source 5. . The light guide member 7 has a through-hole 71 through which the rotation shaft 13a of the stepping motor 13 passes in the center portion. The light guide member 7 guides the first illumination light L1 of the first light source 5 to the pointer 11, the incident portion 72 that receives the first illumination light L1, and the first illumination light L1 as the pointer 11. And an emission part 73 that emits toward the center. When the first illumination light L1 is incident on the incident portion 72, it enters the pointer 11 via the emission portion 73 and illuminates the indication portion 11a. The incident portion 72 has a semicircular convex shape in cross section so that the first illumination light L1 from the first light source 5 can be efficiently incident.

  The diffusing plate 8 is disposed between the display plate 12 and the second light source 6, and the second illumination light L <b> 2 of the second light source 6 emitted toward the display plate 12 is applied to the entire surface of the display plate 12. It is a diffusing member to diffuse toward. The second illumination light L2 is emitted toward the entire surface of the display panel 12 through the diffusion plate 8, and transmits and illuminates the analog indicator portion 12a of the display panel 12. In addition, a part of the second illumination light L2 is emitted to the outside from the outer peripheral portion 8a of the diffusion plate 8, and further enters the transmission layer 41 that is the center portion of the turning member 4 from the incident portion 44, and the reflecting portion. In 45, the reflection member 4 is reflected in the direction perpendicular to the display panel 12 and is transmitted and illuminated. At this time, since the second illumination light L2 is emitted to the outside from the turning member 4 facing the step portion 31 of the front cover 3, the user has an impression that the outer periphery of the front cover 3 emits light in a ring shape. receive.

  A vehicle instrument is constituted by the above-described parts.

  Such a vehicular instrument includes an incident portion 44 that receives a part of the second illumination light L2 that leaks from the outer periphery of the diffusion plate 8 that diffuses the second illumination light L2 of the second light source 6, and the second illumination light L2. By providing the reflecting member 45 that reflects the display plate 12 in the direction perpendicular to the display plate 12 on the reflection member 4, even if the space around the display plate 12 is a monocular aftermeter, the user can sufficiently emit ring-shaped light emission. It can be visually recognized, and the design can be such that the outer periphery of the front cover 3 is not simply the periphery of the display board 12, but the outer periphery of the front cover 3 emits light in a ring shape, and the visibility and design can be improved. Become.

  Further, by forming the light shielding layers 42 and 43 on the side surface portion of the turning member 4, the second illumination light L <b> 2 that illuminates the turning member 4 is irradiated into the display unit 1 or leaked to the outside from the side. The display quality of the display unit 1 can be maintained.

  Further, by providing the step portion 31 on the outer peripheral side of the front cover 3 and arranging the facing member 4 at a position facing the step portion 31, the light emission of the facing member 4 can be further emphasized by the step portion 31. And visibility can be improved.

1 is an external view showing a vehicle instrument that is an embodiment of the present invention. Sectional drawing which shows the instrument for vehicles same as the above.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Display part 11 Pointer 12 Display board 2 Meter case (case body)
3 Front cover (cover member)
4 Reversing member (ring-shaped member)
5 1st light source 6 2nd light source 7 light guide member 71 through-hole 72 entrance part 73 exit part 8 diffuser plate 8a outer peripheral part L1 1st illumination light L2 2nd illumination light

Claims (4)

A display board on which an indicator portion is formed;
A pointer that rotates on the display plate to indicate the indicator portion;
It is a vehicle meter that houses a single analog display unit having a case body,
A transmissive or semi-transmissive cover member covering the analog display part exposed from the case body;
A first light source disposed on a rear surface side of the display plate and emitting a first illumination light for illuminating the pointer;
A second light source disposed on the rear side of the display plate and emitting a second illumination light for illuminating the display plate;
A diffusion plate disposed between the display plate and the second light source and diffusing the second illumination light;
The second illumination light that is disposed between the cylindrical case body and the cover member so as to surround the analog display unit, is opposed to the outer peripheral portion of the diffusion plate, and is emitted from the outer peripheral portion. possess an incident portion for the incident, a reflecting section for reflecting the second illumination light incident from the incident part on the display panel and the vertical direction, and as the outer circumference of the front cover member emits light in a ring shape A vehicle instrument comprising: a transmissive ring-shaped member that emits the second illumination light through the cover member .   The vehicle instrument according to claim 1, wherein the ring-shaped member has a light shielding layer formed on a side surface portion.   The vehicle instrument according to claim 1, further comprising a light guide member that receives the first illumination light and emits the light toward the pointer.     The vehicle instrument according to claim 1, wherein the cover member includes a step portion on an outer peripheral side, and the ring-shaped member is disposed at a position facing the step portion.

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