Electricity: motive power systems – Automatic and/or with time-delay means – Movement – position – or limit-of-travel
Patent
1999-03-15
2000-09-05
Nappi, Robert E.
Electricity: motive power systems
Automatic and/or with time-delay means
Movement, position, or limit-of-travel
318466, 318468, 318469, 318256, 318264, 318265, 318266, 318268, 318272, 318273, 318275, 318282, 318434, 318630, 318650, 318652, 318653, 318663, 49 26, 49 28, 49 31, 49348, 49349, 49350, 160292, 1602931, 33 1PT, 33706, 33708, G05B 500
Patent
active
061148202
ABSTRACT:
A power window apparatus is provided for detecting pinching in accordance with the opened/closed position of the window and a state of rotation of a motor, the apparatus having a position sensor which detects a safety-control suspension region of the window and which is an accurate sensor. A spiral guide groove is formed in the inner surface of a housing opposite to a rotational plate which is rotated by an output shaft of a motor which opens/closes a window. A follower which is guided by the spiral guide groove is able to move along a straight guide groove provided for the rotational plate in the radial direction. Terminals in the form of conductive films are provided for a printed circuit board accommodated in the housing. When the rotational plate has been rotated, the follower is guided by the spiral guide groove so as to be moved in the straight guide groove. Thus, a slide member provided for the follower is brought into contact with the terminals so that the terminals are conducted with each other. Thus, an electric signal is output from the terminals. A safety-control suspension region can be detected with an accuracy of one-to-one correspondence to the amount of movement of the window. Moreover, a necessity of disposing the position sensor adjacent to the window can be eliminated.
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Koito Manufacturing Co. Ltd.
Martin Edgardo San
Nappi Robert E.
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