Hydraulic drive automobile horizontal driving device

• US 4,834,206 A
• Filed: 05/27/1987
• Issued: 05/30/1989
• Est. Priority Date: 11/19/1987
• Status: Expired due to Fees

• Current Assignee: Huang Ching-Tang
• Original Assignee: Huang Ching-Tang
• Inventors: Ching-Tang, Huang
• Primary Examiner(s): NOT, DEFINED
• Application Number:
  US07/054,741
• Time in Patent Office: 734 Days
• Field of Search: 180/202, 180/200, 180/199
• US Class Current: 180/202
• CPC Class Codes: B60S 9/215 driven by an auxiliary motor

Abstract

Four lift units are installed at the axle shaft of the car wheels and can be swung from the bottom plate by means of a hydraulic drive motor, to enable the car to move horizontally to the left or to the right into a parking space. Besides enabling the car to move horizontally for parking, the device can also be used for tire replacing or to perform a U-turn.

Claims

1. Apparatus for parking a car, said car having at bottom plate and wheels at an axle shaft, said apparatus comprising:

for each wheel a hydraulic lift unit at said axle shaft to enable a respective car wheel to be lifted temporarily so as to allow the car to directly perform a horizontal movement for parking and turning, each unit including;

a telescopic leveller including a fixed core tube, a hydraulic drive motor, and a gear adapted to be driven by said hydraulic motor, said telescopic leveler being locked to said axle shaft with its first end and the second end, by means of the combination of a spring and rubber bellows, is secured at said bottom plate but without affecting shock absorption of said car, and said telescopic leveller is connected in a right angle attitude at said axle shaft;

a hydraulic cylinder, said hydraulic cylinder having an attachement end which is operatively connected to said fixed core tube of said telescopic leveller, said hydraulic cylinder being adapted to be arranged in line with said telescopic leveller in the bottom plate when in retracted position, and for the extended position said hydraulic cylinder being adapted to swing, using said attachment end as the center of a circle of rotation, until it extends vertically with respect to the ground;

a pair of auxiliary wheels secured at the end opposite of the attachment end of said hydraulic cylinder to support the car on the ground;

gear means arranged laterally in at least one of said pair of auxiliary parking wheels;

a hydraulic drive motor means adapted to engage with said gear means of a respective pair of auxiliary parking wheels, said hydraulic drive motor means providing motive power for forward or backward motion of the respective auxiliary parking wheel to enable said car to move horizontally to the left and to the right;

brake means arranged laterally at least at one of said pair of auxiliary parking wheels for arresting movement of said pair of auxiliary parking wheels;

magnetic retainer means at the attachment end of said telescopic leveller for retaining said telescopic leveller when in the withdrawn position; and

means for supplying power to said magnetic retainer means.

2. The apparatus according to claim 1, wherein elevation by a respective hydraulic lift unit is effected in stages such that during a first stage the respective wheel of said car has been lifted to keep a 9 cm distance away from the ground, and further including switch means connected to each hydraulic lift unit for enabling the respective two wheels either on the left and the right to keep at a distance of 18 cm away from the ground.