Method and apparatus of moving bowling-lane maintenance machine

Details Method and apparatus of moving bowling-lane maintenance machine Method and apparatus of moving bowling-lane maintenance machine

1991-05-23

1993-06-15

Mitchell, David M.

Motor vehicles

Having four wheels driven

Including separate mechanical assemblies for transmitting...

180 22, 180 86, 180238, 15 98, 15 491, 51174, B60K 17354, A47L 1114

Patent

active

052194124

ABSTRACT:
The present invention provides a bowling-lane maintenance machine having a driving mechanism which includes four turnable drive units and four lift cylinders. Each of the drive units includes a lane running wheel, a ride-on-approach and transverse running wheel having a diameter larger than that of the lane running wheel, and a drive motor operatively connected with the wheels. When the bowling-lane maintenance machine is moved on the approach by the rotation of the ride-on-approach and transverse running wheels, the lane running wheels will not be brought into contact with the surface of the approach. When the bowling-lane maintenance machine is lifted under the actuation of the lift cylinders, the drive units may be turned to change the direction of movement in which the machine is to be moved. During movement on the approach, furthermore, the bowling-lane maintenance machine may be finely turned by adjusting the drive motors connected with the lane running wheel and/or the ride-on-approach and transverse running wheel.

REFERENCES:
patent: 3216037 (1965-11-01), Stevens et al.
patent: 3837028 (1974-09-01), Bridge
patent: 4727615 (1988-03-01), Kubo
patent: 4937911 (1990-07-01), Picchietti, Sr. et al.

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