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US 6,543,584 B1Granted
Elevator with adjustable top edge railing members
AssigneeKabushiki Kaisha Toshiba
InventorsKazuaki Miyakoshi, Kosei Kamimura
Life of this patent
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Abstract
An elevator including a cage configured to ascend and descend in an elevator shaft, and at least one railing member disposed along at top edge of the cage and configured to be adjustable in height so that during performance of maintenance by a maintenance person, the railing is adjusted to be in an upright position, and is otherwise maintained in a position lower than a highest protruding object existing on the top of the cage.
Claims10
An elevator comprising:
- a cage configured to ascend and descend in an elevator shaft;
- at least one stand provided on a top of the cage;
- and
- at least one railing member mounted on the at least one stand through a hinge and configured to be adjustable in height by being folded at the hinge toward a center of the cage and to stand upright,
- wherein said at least one railing member comprises:
- a pair of first railing members each including a folding railing and disposed on said cage along opposite first and second side edges of said cage, and
- a second railing member disposed on said cage along a third side edge of said cage,
- said pair of first railing members configured to raise up causing said second railing member to also raise up;
- said first railing members and said second railing member configured to be set at a desired position before a maintenance worker stands on said cage.
6 more elements
An elevator comprising:
- a cage configured to ascend and descend in an elevator shaft;
- and
- at least one railing member disposed on said cage along a top edge of the cage and configured to be adjustable in height,
- wherein said at least one railing member comprises:
- a pair of first railing members each including a folding railing and disposed on said cage along the opposite top side edges thereof, and
- a second railing member disposed on said cage along the top back side edge thereof,
- said first railing members and said second railing member configured to be set at a desired position before a maintenance worker stands on said cage;
- the elevator further comprising:
- a lock member configured to lock one of said first railing members at a desired position,
- said first railing members being connected with said second railing member so as to be set at said desired position in unison;
- and
- wherein said second railing member comprises:
- a pair of levers each pivotably connected at one end thereof to respective back side ends of said first railing members, and connected together at other ends thereof, said pair of levers configured such that with the folding of said first railing member, said other ends turn downward.
10 more elements
Dependencies are inferred from the claim text.