HEADUP DISPLAY DEVICE

HEADUP DISPLAY DEVICE

Provided is a headup display device which is not liable to generate abnormal sound. The headup display device comprises: a liquid crystal display (20) for emitting display light (M); a concave mirror (D1) for reflecting the display light (M); and a motor device (1) for rotating the concave mirror (D...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser: OGASAWARA,Yukio
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ARRANGEMENT OR MOUNTING OF PLURAL DIVERSE PRIME-MOVERS INVEHICLES
ARRANGEMENT OR MOUNTING OF PROPULSION UNITS OR OFTRANSMISSIONS IN VEHICLES
ARRANGEMENTS IN CONNECTION WITH COOLING, AIR INTAKE, GASEXHAUST OR FUEL SUPPLY OF PROPULSION UNITS, IN VEHICLES
AUXILIARY DRIVES FOR VEHICLES
BLASTING
ENGINEERING ELEMENTS AND UNITS
GEARING
GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS
HEATING
INSTRUMENTATION OR DASHBOARDS FOR VEHICLES
LIGHTING
MECHANICAL ENGINEERING
OPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
OPTICS
PERFORMING OPERATIONS
PHYSICS
THERMAL INSULATION IN GENERAL
TRANSPORTING
VEHICLES IN GENERAL
WEAPONS
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Beschreibung
Zusammenfassung:Provided is a headup display device which is not liable to generate abnormal sound. The headup display device comprises: a liquid crystal display (20) for emitting display light (M); a concave mirror (D1) for reflecting the display light (M); and a motor device (1) for rotating the concave mirror (D1). The motor device (1) includes: a motor (10) having a motor shaft (150) projecting from a motor body (110); a worm (2) connected to the motor shaft (150) and having a spiral groove (21) formed on the outer peripheral surface (20); and a worm wheel (3) provided with teeth (36) engaging with the spiral groove (21) and transmitting a driving force from the motor (10) to the concave mirror (D1). A hole (23) is formed inside the worm (2) extending in the axial direction of the worm (2) from the end face (292) of the worm (2) near the motor body (110). A compression coil spring (8) is arranged in the hole (23) for biasing the worm (2) in the direction opposite the motor body (110) and biasing the motor shaft (150) toward the motor body (110).