| 主权项 |
1. A hinge for supporting a gate or door along a fence or wall, comprising:
first and second hinge leaves, one of the leaves having fastening apertures for attachment along a surface of a gate or door, and the other of the leaves having fastening apertures for attachment along a fence, post or wall surface; first and second bearing sleeves attached along an edge of the first leaf in spaced-apart relation to one another; a third bearing sleeve attached along an edge of the second leaf so that, when the edge of the second leaf is positioned along the edge of the first leaf, the third bearing sleeve can be positioned between the first and second bearing sleeves, the first and second bearing sleeves each including an aperture that can be aligned with the aperture of the third bearing sleeve when the third bearing sleeve is positioned between the first and second bearing sleeves; a hinge pintle sized to extend into each of the apertures for mating engagement with the first, second and third bearing sleeves and thereby connect the first and second hinge leaves to one another for rotation of one of the leaves about the hinge pintle and to support a hinge load; first and second cover plates, the first of the cover plates having fastening apertures for attachment to the first leaf and the second of the cover plates having fastening apertures for attachment to the second leaf; and an elastomeric member which, when stretched beyond a first length, develops a force urging the member to resume the first length so that, with the member fastened between the first hinge leaf and the first of the cover plates, and between the second hinge leaf and the second of the cover plates: as one leaf is rotated in a first direction of rotation about the hinge pintle, the member stretches and provides a force to urge said one leaf to rotate in a direction of rotation opposite the first direction of rotation. |
