Auxiliary back-up and trailer coupling device for motor vehicles

Details Auxiliary back-up and trailer coupling device for motor vehicles Auxiliary back-up and trailer coupling device for motor vehicles

1994-01-28

1995-10-03

Peng, John K.

Communications: electrical

Land vehicle alarms or indicators

For trailer

340435, 340436, 280427, 280DIG14, G08B 2100

Patent

active

054555574

ABSTRACT:
An auxiliary back-up and trailer coupling device for motor vehicles includes ultrasonic sensors mounted on the motor vehicle. The ultrasonic sensors transmit and receive sound waves, and are linked to a control and display device. The device permits the position of a trailer unit that is equipped with a coupling device and arranged behind the motor vehicle to be exactly determined. The trailer is equipped with a coupling device, preferably a tow bar, and has an additional transmitting and receiving ultrasonic sensor.

REFERENCES:
patent: 3924257 (1975-12-01), Roberts
patent: 4852901 (1989-08-01), Beasley et al.
patent: 4938495 (1990-07-01), Beasley et al.
patent: 5059946 (1991-10-01), Hollowbush
patent: 5191328 (1993-03-01), Nelson

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