Opening and closing device

Details Opening and closing device Opening and closing device

2007-04-12

2010-10-12

Dayoan, Glenn (Department: 3612)

Land vehicles: bodies and tops

Bodies

Door or window with specified vehicle feature

C296S146800, C296S155000, C049S028000

Reexamination Certificate

active

07810864

ABSTRACT:
An opening and closing device includes an electrically conductive fixed body, a movable body, a drive motor, a speed control device, a detection assembly, and a determining device. The electrically conductive fixed body defines an opening portion therein. The movable body is displaceable between a full closed position and a full open position. The drive motor drives the movable body to open and close the opening portion of the fixed body. The detection assembly includes a sensor electrode. The determining device computes, as a detection value, a change amount of the capacitance at the sensor electrode per a predetermined constant measuring time based on the change of the capacitance detected by the sensor electrode. The determining device compares the detection value with a constant threshold value, and determines whether the object exists between the movable body and the periphery of the opening portion based on the comparison result.

REFERENCES:
patent: 5046283 (1991-09-01), Compeau et al.
patent: 6183040 (2001-02-01), Imaizumi et al.
patent: 6814394 (2004-11-01), Yogo et al.
patent: 6955389 (2005-10-01), Suzuki et al.
patent: 7204544 (2007-04-01), Hermansson
patent: 7210731 (2007-05-01), Ichinose et al.
patent: 7267391 (2007-09-01), Yokomori
patent: 7438346 (2008-10-01), Breed
patent: A-2004-257788 (2004-09-01), None

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