Movable or removable closures – With operator for movably mounted closure – Drive within closure housing
Patent
1997-10-17
2000-01-04
Purol, David M.
Movable or removable closures
With operator for movably mounted closure
Drive within closure housing
49360, 2961461, E05F 1148
Patent
active
060096713
ABSTRACT:
In a system for automatically opening or closing a sliding door or the like for a vehicle, an undesired clamping of an object between the door and the vehicle body, resulting in increased tension force in the wire moving the door, is sent early and relieved quickly. The wire (4) is solidly secured to the sliding door and wound onto a drum (10) to open or close the door by a motor driving the drum, and two tensioners (11a and 11b) are provided respectively on opposite sides of the drum and between the drum and door. Each sensor has a movable part (19) positioned in accordance with the tension force in the wire passing through the tensioner, sensor plates (20) are provided on the movable parts of the tensioners, and magnetic sensors (21) are provided to detect the moving speeds of the plates. When the moving speeds of the plates are larger than a predetermined value, preset in advance, in cases other than when the door is at a fully closed or fully opened condition, a controller concludes that some object has been clamped between the door and the vehicle body and immediately relieves such clamping.
REFERENCES:
patent: 5063897 (1991-11-01), Okui et al.
patent: 5644869 (1997-07-01), Buchanan, Jr.
patent: 5708338 (1998-01-01), Cook et al.
patent: 5737875 (1998-04-01), Dowling et al.
patent: 5793173 (1998-08-01), Henschel et al.
patent: 5833301 (1998-11-01), Watanabe et al.
Kusaka Takayuki
Sasaki Satoru
Sato Masaei
Honda Giken Kogyo Kabushiki Kaisha
Mitsuba Corporation
Purol David M.
Thompson Hugh B.
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