Power drive system for sliding door

Details Power drive system for sliding door Power drive system for sliding door

1990-09-24

1992-04-14

Shoop, Jr., William M.

Electricity: motive power systems

Motor-reversing

Periodic- or intermittent-reversing

49280, 49139, H02P 300

Patent

active

051051311

ABSTRACT:
A power drive system for a sliding door, such as those employed on van type vehicles, enables a positive drive powered operation of the door by a control switch remote from the door and a programmed electronic control unit while accommodating manual operation of the door without mechanical interference or resistance from the drive or altering of the drive control program. A push/pull cable connected to the door is in positive meshed engagement at all times with a rotary drive gear whose rotative displacement from a rest position is continuously transmitted to the electronic control unit as a door position input signal. During powered operation of the door, the control unit is programmed to actuate or control a reversible drive motor or associated devices when the door is at selected positions along its path of movement. The drive motor is mechanically coupled to the drive gear via a normally disengaged clutch which is automatically engaged to establish a positive mechanical drive connection between the motor and drive gear only while the motor is in operation.

REFERENCES:
patent: 3653154 (1972-04-01), Hayday
patent: 3785089 (1974-01-01), Smith
patent: 4234833 (1980-11-01), Barrett
patent: 4248016 (1981-02-01), Pecchioni
patent: 4529920 (1985-07-01), Yoshida et al.
patent: 4563625 (1986-01-01), Kornbrekke et al.
patent: 4640050 (1987-02-01), Yamagishi et al.
patent: 4862640 (1989-09-01), Boyko et al.
patent: 4922168 (1990-05-01), Waggamon et al.
patent: 4965502 (1990-10-01), Ogasawara

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