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US5048927A Expired / Lapsed US ⏱️ 0.0 years remaining

Indication display unit for vehicles

Assignee: Yazaki Corp
•
Filing: 1989-01-27
•
Granted: 1991-09-17
•
Expires: 2009-01-27
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Abstract

Abstract An indication display unit for a vehicle, includes a reflecting device having a reflecting surface directed to a driver's seat which reflecting surface has a reduced reflectivity. An indicating device having an indicating surface directed to the reflecting surface of the reflecting device. Operational information concerning driving operation of the vehicle is indicated on the indicating surface of the indicating device, and is reflected on the reflecting surface of the reflecting device to be visibly observed by a driver. As the reflectivity of the reflecting surface is reduced, the visibility of the displayed image from the indicating surface may be improved. Since the reflecting device is provided on a dashboard, and the indicating device is located at any position other than the dashboard, a meter hood may be removed to ensure more space in the dashboard. The reflecting device is composed of a reflecting plate and a frame for supporting the reflecting plate, which is preliminary curved with a relatively good accuracy. In constructing the reflector, the reflecting plate is cured by forcibly following the curvature of the frame, thereby easily obtaining a curvature of the reflecting plate with a relatively good accuracy.

Inventors

  • 👤 Tai Inoue
  • 👤 Tsuyoshi Ohshima
  • 👤 Tatsumi Ohtsuka
  • 👤 Hiroshi Ichikawa

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-24 14:40
CPC Classifications
G; G02; G02B; G02B27/00; G02B27/01; G02B27/0149; G02B27/0101; B; B60; B60K; B60K2360/00; B60K2360/20; B60K2360/33; B60K2360/334; G02B2027/0118; G02B2027/012; G02B2027/0121; G02B2027/0154; G02B2027/0165

Claims Analysis

Total Claims: 9
Claim 1
Independent Claim 90 words
An indication display unit for a vehicle, comprising: reflecting means provided on a dashboard at a position of an instrument panel, said reflecting means having a reflecting surface directed to a driver's seat, a backside of said reflecting means made of a non-transparent material, and said reflecting surface formed to attenuate an intensity of incident light and formed to reflect light; and indicating means provided at an indicator receiving portion in a steering column, said indicating means having an indicating surface directed toward said reflecting surface of said reflecting means.
Claim 2
Dependent Claim 90 words
An indication display unit for a vehicle, comprising: reflecting means provided on a dashboard at a position of an instrument panel, said reflecting means having a reflecting surface directed to a driver's seat, a backside of said reflecting means made of a non-transparent material, and said reflecting surface formed to attenuate an intensity of incident light and formed to reflect light; and indicating means provided at an indicator receiving portion in a steering column, said indicating means having an indicating surface directed toward said reflecting surface of said reflecting means.
Claim 3
Dependent Claim 32 words
The indication display unit as defined in claim 1, wherein said reflecting, means comprises a total reflecting mirror and a smoked member provided on a front surface of said total reflecting mirror.
Claim 4
Dependent Claim 21 words
The indication display unit as defined in claim 2, wherein said smoked member is composed of a smoked acrylic resin plate.
Claim 5
Dependent Claim 26 words
The indication display unit as defined in claim 3, wherein a small gap is defined between said smoked acrylic resin plate and said total reflecting mirror.
Claim 6
Dependent Claim 20 words
The indication display unit as defined in claim 2, wherein said smoked member is composed of a smoked polyester film.
Claim 7
Dependent Claim 26 words
The indication display unit as defined in claim 2, wherein the intensity of the reflected light is about 20-60% of the intensity of the incident light.
Claim 8
Dependent Claim 38 words
The indication display unit as defined in claim 1, wherein said reflecting means comprises a deeply colored reflecting plate having a mirror surface and a partially transmissive reflecting film provided on a front surface of said reflecting plate.
Claim 9
Dependent Claim 44 words
The indicating display unit as defined in claim 7 wherein said deeply colored reflecting plate is composed of an acrylic resin plate of a color selected such that the intensity of the reflected light is about 40-80% of the intensity of the incident light.

References Cited (Backward Citations)

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USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1994-09-16 1995-03-18 1995-09-17 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1998-09-16 1999-03-18 1999-09-17 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 2002-09-16 2003-03-18 2003-09-17 $7700.00 Window Closed / Lapsed

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