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US 6,072,290 AGranted
Waterproof power window device
AssigneeAlps Electric Co., Ltd.
InventorsIsao Takagi, Akira Sasaki
Life of this patent
Estimating the term…
Abstract
When a window lowering switch is operated, a car voltage is supplied to a window lowering relay to drive the window lowering relay, and the window lowering relay is inhibited from being driven by supplying an inverse voltage to a window elevating relay. Thus, there is provided a waterproof power window device in which a window may be opened by operating the window lowering switch (3) even when a car falls in the water and is laid under water.
Claims6
A waterproof power window device comprising:
- a first series circuit containing a first one-circuit two-contact switch and a first relay, said first one-circuit two-contact switch switchable between ground and a car power supply;
- and
- a second series circuit containing a second one-circuit two-contact switch and a second relay, said second one-circuit two-contact switch switchable between ground and a car power supply;
- and
- wherein
- during operation of said first switch, said first relay is energized such that a corresponding first contact is switched and a motor is rotated in one direction elevating a window, and
- during operation of said second switch, said second relay is energized such that a corresponding second contact is switched and said motor is rotated in an opposite direction lowering said window,
- an end of said first series circuit is connected to a junction between said second switch and said second relay,
- an end of said second series circuit is connected to a junction between said first switch and said first relay, and
- said first switch and said second switch are connected with said car power supply during operation and connected with ground during non-operation, thus allowing normal operation of said waterproof power window device when said waterproof power window device is submerged in water.
7 more elements
A waterproof power window device comprising:
- a first series circuit containing a first one-circuit two-contact switch and a first relay, said first one-circuit two-contact switch switchable between ground and a car power supply;
- and
- a second series circuit containing a second one-circuit two-contact switch and a second relay, said second one-circuit two-contact switch switchable between ground and a car power supply;
- and
- wherein
- during operation of said first switch, said second relay is energized such that a corresponding second contact is switched and a motor is rotated in one direction elevating a window, and
- during operation of said second switch, said first relay is energized such that a corresponding first contact is switched and said motor is rotated in an opposite direction lowering said window,
- an end of said first series circuit is connected to a junction between said second switch and said second relay,
- an end of said second series circuit is connected to a junction between said first switch and said first relay, and
- said first switch and said second switch are connected with said car power supply during non-operation and connected with ground during operation, thus allowing normal operation of said waterproof power window device when said waterproof power window device is submerged in water.
7 more elements
A waterproof power window device comprising:
- a first series circuit comprised of a first switch formed of a one-circuit two-contact switch and a first relay;
- and
- a second series circuit comprised of a second switch formed of a one-circuit two-contact switch and a second relay,
- wherein
- said first series circuit is connected with a first junction between said second switch and said second relay when said first switch is not operated and is connected with a car power supply when said first switch is operated,
- an end of said first relay is connected with a second junction between said second switch and said second relay,
- said second series circuit is connected with to the ground when said second switch is not operated and is connected with said car power supply when said second switch is operated,
- when said first switch is operated an end of said second relay is connected to the ground and said first relay is energized such that a corresponding first contact is switched and a motor is rotated in one direction elevating a window and when said second switch is operated said second relay is energized such that a corresponding second contact is switched and said motor is rotated in the opposite direction lowering said window, thus allowing normal operation of said waterproof power window device when said waterproof power window device is submerged in water.
5 more elements
Dependencies are inferred from the claim text.