| 摘要 |
A position-limit hinge includes an axle housing, a first hinge shaft, a second hinge shaft, a first position-limit device set and a second position-limit device set. By means of enabling the first position-limit device set and the second position-limit device set to be alternatively changed between a position-limit status and a freely rotatable status, the first hinge shaft is driven to rotate or the axle housing is driven to turn about the second hinge shaft, enabling a cover member of an electronic device carrying the position-limit hinge to be smoothly opened relative to a base member. |
| 主权项 |
1. A position-limit hinge, comprising an axle housing, a first hinge shaft, a second hinge shaft, a first position-limit device set and a second position-limit device set, wherein:
said axle housing comprises a first axle hole and a second axle hole; said first hinge shaft comprises a first shaft portion located at one end thereof and rotatably inserted into said first axle hole of said axle housing, and a first position-limit portion located at one end of said first shaft portion and exposed to an outside of said axle housing; said second hinge shaft comprises a second shaft portion, said second shaft portion located at one end thereof and rotatably inserted into said second axle hole of said axle housing, and a second position-limit portion located at one end of said second shaft portion and exposed to the outside of said axle housing; said first position-limit device set comprises a first cam wheel, a second cam wheel and a first position-limit member, said first cam wheel comprising a first mounting hole fastened to said first position-limit portion of said first hinge shaft and a first actuation barrel surrounding said first mounting hole, said second cam wheel comprising a second mounting hole fastened to said second position-limit portion of said second hinge shaft and a second actuation barrel surrounding said second mounting hole, said first position-limit member being disposed between said first cam wheel and said second cam wheel, said first position-limit member having opposing top and bottom sides thereof respectively stopped against said first actuation barrel and said second actuation barrel; said second position-limit device set comprises a third cam wheel, a fourth cam wheel and a second position-limit member, said third cam wheel comprising a third mounting hole fastened to said first position-limit portion of said first hinge shaft and a third actuation barrel surrounding said third mounting hole, said fourth cam wheel comprising a fourth mounting hole fastened to said second position-limit portion of said second hinge shaft and a fourth actuation barrel surrounding said fourth mounting hole, said second position-limit member being disposed between said third cam wheel and said fourth cam wheel, said second position-limit member having opposing top and bottom sides thereof respectively stopped against said third actuation barrel and said fourth actuation barrel. |
