Device for opening and closing a window, a door, or the like

Details Device for opening and closing a window, a door, or the like Device for opening and closing a window, a door, or the like

1994-11-10

1996-01-30

Kannan, Philip C.

Movable or removable closures

Operator interrelated with closure latch release

Common input, diverse trains to latch and closure mover

49279, E05F 1102

Patent

active

054872383

ABSTRACT:
In a device for opening and closing a window, a casement is moved between a closed and open position with respect to a stationary frame. This is done by a longitudinally displaceable toothed rack, which transfers the longitudinal movement into a movement of the casement by a hinge rod. In order to obtain a device which is easy to operate, it is proposed that in addition to the first toothed rack co-operating with the casement, a second toothed rack is provided in the frame which changes closing elements located on the frame between a latched position holding the casement and an unlatched position releasing the casement, by a closing rod. Although both toothed racks are longitudinally displaced by the same actuating element, as a rule only one of the two toothed racks is coupled to the actuating means while the other is uncoupled and stationary. The currently coupled toothed rack uncouples itself automatically after a specific distance of travel and the final phase of its longitudinal displacement is used to couple the other toothed rack to the actuating element.

REFERENCES:
patent: 1671362 (1928-05-01), Fraser
patent: 1748662 (1930-02-01), Stewart
patent: 5152103 (1992-10-01), Tucker et al.

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