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Automatic direction changing apparatus for vehicle

  • US 4,938,305 A
  • Filed: 11/23/1988
  • Issued: 07/03/1990
  • Est. Priority Date: 11/24/1987
  • Status: Expired due to Fees
First Claim
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1. An automatic direction changing apparatus for a vehicle which comprises:

  • movement means which includes a cover plate (10) of rectangular shape mounted at a bottom portion of the vehicle, guide rails (11), (11) protruding at both sides of a bottom surface of said cover plate (10), a supporting plate (20) formed at a lower side of said cover plate (10), guide rollers (12), (12) fixed at an upper surface of the supporting plate (20), said guide rollers (12), (12) are meshed with said guide rails (11), (11), a first motor (13) fixed to the upper surface of said supporting plate (20) for producing forward and reverse revolution, a first worm gear (14) fixed to a rotary shaft of said first motor (13), a large and small gear (15), (16) meshed with said first worm gear (14) to reduce the speed of revolution of said motor (13), and a rack (17) which is fixed at a side of the bottom surface of said cover plate (10) and is meshed with said small gear (16);

    turning means which includes a second motor (21) fixed at the upper surface of said supporting plate (20) for producing forward and reverse revolution, a second worm gear (22) fixed to a rotary shaft of said second motor (21), a large and small gear (23), (24) for speed reduction meshed with said second worm gear (22), a circular base plate (30), a circular internal tooth gear (25) fixed at a central portion of an upper surface of said circular base plate (30) and meshed with said small gear (24), a pair of supporting rollers (26), (26) fixed at a bottom surface of said supporting plate (20) to support the supporting plate (20), and a hollow shaft (28) fixed at a central portion of said supporting plate (20) and a lower end of said shaft being supported by a bearing (27) at the central portion of said circular base plate (30);

    lift-up means for lifting up the vehicle which includes an air tube (31) fixed at a bottom surface of said circular base plate (30), a bottom plate (33) fixed at a bottom surface of said air tube (31) and connected to said circular base plate (30) with a pair of tensile springs (32), (32), a hose (34) fixed to said air tube (31) and passing through said hollow shaft (28), and a flexible hose (37) having a first end connected to said hose (34) with a ring coupling means (35) and a second end connected to an air supply source.

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