Door lifter
First Claim
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1. A pivoting mechanism for pivoting a door between a first substantially open position and a second substantially closed position, comprising:
- an elbow lever mechanism comprising at least one leg member;
a lever element for contacting the door, said at least one leg member of said elbow lever mechanism having a first end pivotably connected;
a guide lever, said at least one leg member having a second end pivotably connected to said guide lever; and
a spring element engaged with said guide lever and constructed and arranged to operate said elbow lever mechanism;
wherein said guide lever is connected with said at least one leg member such that when the door is closed, said elbow lever mechanism is at or adjacent to a dead point, and such that when the door is open, said elbow lever mechanism is in a state of maximum force transfer.
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Accused Products
Abstract
A device for opening or lifting a door (22) that hangs down by a hinge (23) with a horizontal swivel axis is characterized by an elbow lever mechanism, which is operated by means of a spring element (21) and which can additionally be folded down in the area of its dead point when the door (22) is still hanging or which is at its maximum force transfer when the door (22) is swivelled up. The door should preferably also be able to be folded down.
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Citations
12 Claims
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1. A pivoting mechanism for pivoting a door between a first substantially open position and a second substantially closed position, comprising:
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an elbow lever mechanism comprising at least one leg member; a lever element for contacting the door, said at least one leg member of said elbow lever mechanism having a first end pivotably connected; a guide lever, said at least one leg member having a second end pivotably connected to said guide lever; and a spring element engaged with said guide lever and constructed and arranged to operate said elbow lever mechanism; wherein said guide lever is connected with said at least one leg member such that when the door is closed, said elbow lever mechanism is at or adjacent to a dead point, and such that when the door is open, said elbow lever mechanism is in a state of maximum force transfer. - View Dependent Claims (2, 3, 4, 5)
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6. A door assembly movable between a first substantially open position and a second substantially closed position, comprising:
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a door; and a pivoting mechanism for said door, said pivoting mechanism comprising; an elbow lever mechanism comprising at least one leg member; a lever element for contacting said door, said at least one leg member of said elbow lever mechanism having a first end pivotably connected to said lever element; a guide lever, said at least one leg member having a second end pivotably connected to said guide lever; and a spring element engaged with said guide lever and constructed and arranged to operate said elbow lever mechanism; wherein said guide lever is connected with said at least one leg member such that when said door is in the closed position, said elbow lever mechanism is at or adjacent to a dead point, and such that when said door is in the open position, said elbow lever mechanism is in a state of maximum force transfer. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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Specification