Door hinge device with fulcrum at variable position
First Claim
1. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising(a) a first member adapted for mounting to the door;
- (b) a second member adapted for mounting to the structure;
(c) a first balancing arm connected with said second member via a first fixed pivot connection;
(d) a second balancing arm connected at one end with said second member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot;
(e) a first arm having one end connected with an end of said first balancing arm opposite said first fixed pivot via a first mobile pivot and a second end connected with said first member via a second mobile pivot, said second balancing arm being connected at another end with said first member via a third mobile pivot; and
(f) a second arm connected between said first balancing device and said second balancing device via first and second binding pivots, respectively, said first mobile pivot being arranged above and between said first and second fixed pivots when the door is in the closed position, said second mobile pivot being arranged above and more external than said third mobile pivot relative to the structure, said second and third mobile pivots being arranged below and external to said second fixed pivot, said first and second binding pivots being arranged between said first and second fixed pivots, said first binding pivot being arranged at least as high as said first fixed pivot, said second binding pivot being arranged at or below the height of said second fixed pivot.
1 Assignment
0 Petitions
Accused Products
Abstract
An hinge device with fulcrum at variable position for a door (2) of a structure (3) is provided with connecting members, first (4) and second (5), mutually connected and respectively fit to be fixed to the door (2) and to the structure (3) for rotating the door between the extreme closing (C) and the extreme opening (A) in which the door (2), in an operating condition of the structure, is respectively almost vertical and approximately horizontally orientated.
The second connecting member (5) has a first fixed pivot (6) and a second fixed pivot (7) for the rotating connection respectively with a first balancing mean (8) and a second balancing mean (9) mutually bound.
The end opposite to the first fixed pivot (6) of the first balancing mean (8) is connected by means of a first mobile pivot (10) to an end of the first arm mean (11) having the remaining end connected to the first connecting member (4) by means of a second mobile pivot (12).
The end opposite to the second fixed pivot (7) of the second balancing means (9) is connected by means of a third mobile pivot (13) to the first connecting member (4).
31 Citations
20 Claims
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1. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising
(a) a first member adapted for mounting to the door; -
(b) a second member adapted for mounting to the structure; (c) a first balancing arm connected with said second member via a first fixed pivot connection; (d) a second balancing arm connected at one end with said second member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot; (e) a first arm having one end connected with an end of said first balancing arm opposite said first fixed pivot via a first mobile pivot and a second end connected with said first member via a second mobile pivot, said second balancing arm being connected at another end with said first member via a third mobile pivot; and (f) a second arm connected between said first balancing device and said second balancing device via first and second binding pivots, respectively, said first mobile pivot being arranged above and between said first and second fixed pivots when the door is in the closed position, said second mobile pivot being arranged above and more external than said third mobile pivot relative to the structure, said second and third mobile pivots being arranged below and external to said second fixed pivot, said first and second binding pivots being arranged between said first and second fixed pivots, said first binding pivot being arranged at least as high as said first fixed pivot, said second binding pivot being arranged at or below the height of said second fixed pivot. - View Dependent Claims (2, 3, 4, 5)
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6. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising
(a) a first connecting member adapted for mounting to the door; -
(b) a second connecting member adapted for mounting to the structure; (c) a first balancing arm connected with said second connecting member via a first fixed pivot connection in a mid-portion of said first balancing arm; (d) a second balancing arm connected at one end with said second connecting member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot; (e) a first arm having one end pivotally connected with an end of said first balancing arm opposite said first fixed pivot and a second end pivotally connected with said first connecting member, said second balancing arm being pivotally connected at another end with said first connecting member; and (f) a spring connected between said second connecting member and said first balancing arm for providing a force to said first balancing arm to counteract the weight of the door, said first balancing arm including a pin which engages an end of said spring when the door is in the horizontal open position.
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7. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising
(a) a first connecting member adapted for mounting to the door; -
(b) a second connecting member adapted for mounting to the structure; (c) a first balancing arm connected with said second connecting member via a first fixed pivot connection; (d) a second balancing arm connected at one end with said second connecting member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot; (e) a first arm having one end connected with an end of said first balancing arm opposite said first fixed pivot via a first mobile pivot and a second end connected with said first connecting member via a second mobile pivot, said second balancing arm being connected at another end with said first connecting member via a third mobile pivot; and (f) a spring connected between said second connecting member and said first balancing arm for providing a force to said first balancing arm to counteract the weight of the door, said first balancing arm including a pin which engages an end of said spring when the door is in the horizontal open position; and (g) a follower connecting said spring with said second connecting member, said first arm having a cam surface for engaging said follower when the door is adjacent to the closed condition, said cam surface being configured to provide a removable stop for the door in a partial opening condition. - View Dependent Claims (8, 9, 10, 11, 12, 13)
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14. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising
(a) a first connecting member adapted for mounting to the door; -
(b) a second connecting member adapted for mounting to the structure; (c) a first balancing arm connected with said second connecting member via a first fixed pivot connection in a mid-portion of said first balancing arm; (d) a second balancing arm connected at one end with said second connecting member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot; and (e) a first arm having one end connected with an end of said first balancing arm opposite said first fixed pivot via a first mobile pivot and a second end connected with said first connecting member via a second mobile pivot, said second balancing arm being connected at another end with said first connecting member via a third mobile pivot, said first arm having a protrusion adjacent to said second mobile pivot, said protrusion extending from said first arm in the direction of said first connection member for sliding on a flat surface of the first connecting member to reduce gaps and oscillations in the hinge.
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15. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising
(a) a first connecting member adapted for mounting to the door; -
(b) a second connecting member adapted for mounting to the structure; (c) a first balancing arm connected with said second connecting member via a first fixed pivot connection in a mid-portion of said first balancing arm; (d) a second balancing arm connected at one end with said second connecting member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot; (e) a first arm having one end pivotally connected with an end of said first balancing arm opposite said first fixed pivot and a second end pivotally connected with said first connecting member, said second balancing arm being pivotally connected at another end with said first connecting member; and (f) an assembly for removably connecting said first connecting member with the door, said assembly including a cavity having an open lower end, said cavity receiving a protrusion on said first connecting member and a protrusion of said second mobile pivot.
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16. A fulcrum type door hinge permitting movement of a door between horizontal open and vertical closed positions relative to a structure, comprising
(a) a first connecting member adapted for mounting to the door; -
(b) a second connecting member adapted for mounting to the structure; (c) a first balancing arm connected with said second connecting member via a first fixed pivot connection; (d) a second balancing arm connected at one end with said second connecting member via a second fixed pivot, said first fixed pivot being arranged above and within the structure relative to the second fixed pivot; (e) a first arm having one end connected with an end of said first balancing arm opposite said first fixed pivot via a first mobile pivot and a second end connected with said first connecting member via a second mobile pivot, said second balancing arm being connected at another end with said first connecting member via a third mobile pivot, said first connecting member including a first seat opposite to said first mobile pivot; and (f) an assembly for removably connecting said first connecting member with the door, said assembly including a cavity having an open lower end, said cavity receiving a protrusion on said first connecting member and a protrusion of said second mobile pivot, said assembly including a first assembly pivot which engages said first connecting member first seat and a manually operable stop for blocking said first seat relative to said first assembly pivot. - View Dependent Claims (17, 18, 19, 20)
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Specification