Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
197 words
A door hinge arrangement permitting opening of the door alternatively at either side, comprising a mounting for attachment to the door at the upper edge thereof, and a mounting for attachment to the door at the tower end thereof, each mounting carrying two hinge seats for engagement with hinge pivots fixed to the frame of the door, a trapping member associated with each mounting, said trapping member being slidable longitudinally of the mounting in either direction from a middle position and having cam means so arranged and constructed that in the initial phase of the opening of the door at one side the cam means longitudinally slide each trapping member so as to trap the corresponding hinge pivot in the hinge seat at the other side of the door, the hinge seats (6, 7; 27, 28; 48, 49) being located at the outer ends of the mountings (1; 20; 41), and the trapping members (10; 22; 40) having a length not exceeding the distance between the outer ends of the hinge seats and being such as to be displaced by the cam means in the direction away from the side at which the door is being opened.
Claim 2
Dependent Claim
197 words
A door hinge arrangement permitting opening of the door alternatively at either side, comprising a mounting for attachment to the door at the upper edge thereof, and a mounting for attachment to the door at the tower end thereof, each mounting carrying two hinge seats for engagement with hinge pivots fixed to the frame of the door, a trapping member associated with each mounting, said trapping member being slidable longitudinally of the mounting in either direction from a middle position and having cam means so arranged and constructed that in the initial phase of the opening of the door at one side the cam means longitudinally slide each trapping member so as to trap the corresponding hinge pivot in the hinge seat at the other side of the door, the hinge seats (6, 7; 27, 28; 48, 49) being located at the outer ends of the mountings (1; 20; 41), and the trapping members (10; 22; 40) having a length not exceeding the distance between the outer ends of the hinge seats and being such as to be displaced by the cam means in the direction away from the side at which the door is being opened.
Claim 3
Dependent Claim
35 words
A door hinge arrangement as in claim 1, in which the cam means comprise inclined end faces (11, 12; 23,24) of the trapping members (10; 22) arranged for engagement with the hinge pivots (10; 22).
Claim 4
Dependent Claim
94 words
A door hinge arrangement as in claim 1, in which the hinge seats (27, 28) are resiliently supported at the outer ends of the mountings (20) at a bias against the trapping members (22), each hinge seat being provided with a projection, (30, 31) for engagement with the corresponding end face (23, 24) of the corresponding trapping member (22) in the position thereof where the outer end of the corresponding trapping member (22) traps the hinge pivot (25, 26) there present, the trapping member being biased by springs (35, 36) towards its middle position.
Claim 5
Dependent Claim
82 words
A door hinge arrangement as in claim 1, in which the hinge seats (48, 49) are connected with each other by means of a connecting rod (50) which is longitudinally non-displaceably mounted in the corresponding mounting (41), the trapping member (40) being slidably connected (at 54, 55) with the connecting rod (50), the cam means of the trapping member (40) being constituted by slots (44, 45) of the trapping member engageable with inclined blocks (42, 43) mounted in the corresponding mounting (41).