Back to results
US 12,091,063 B2Granted
Damping device, stacker crane, transport system, and damping device jig
AssigneeMurata Machinery, Ltd.
InventorsKazuma Yagawa, Ken Inada
Life of this patent
Estimating the term…
Abstract
A damping device includes a damper provided to an outer end of a stacker crane in a traveling direction. The damper includes: a rod member extending along the traveling direction; a first biasing member configured to bias the rod member outward in the traveling direction; and a movement restriction mechanism configured to allow inward movement of the rod member in the traveling direction and restrict outward movement of the rod member in the traveling direction when the rod member has moved inward in the traveling direction.
Claims9
A damping device comprising a damper provided to an outer end of a stacker crane in a traveling direction, wherein
- the damper comprises:
- a rod member extending along the traveling direction;
- a first biasing member configured to bias the rod member outward in the traveling direction;
- and
- a movement restriction mechanism configured to allow inward movement of the rod member in the traveling direction and restrict outward movement of the rod member in the traveling direction when the rod member has moved inward in the traveling direction;
- wherein
- the movement restriction mechanism comprises:
- a plurality of engaged portions aligned along the traveling direction, the plurality of engaged portions each being a protrusion formed on an outer peripheral surface of the rod member, and each having an inner side surface in the traveling direction inclined with respect to the traveling direction and an outer side surface in the traveling direction orthogonal to the traveling direction;
- and
- an engaging portion having elasticity along a direction of approaching the outer peripheral surface of the rod member and configured to engage with the outer side surface of each engaged portion in the traveling direction;
- wherein
- the engaging portion comprises:
- a tubular member provided to surround the outer peripheral surface of the rod member and split into at least two when viewed from the traveling direction;
- a claw formed on an inner peripheral surface of the tubular member and configured to contact the engaged portion;
- and
- a second biasing member configured to bias the tubular member toward the rod member;
- and
- wherein an inner side, in the traveling direction, of an inner peripheral surface of the tubular member has an inclined surface inclined to become wider toward the traveling direction.
15 more elements
A stacker crane comprising:
- a damping device comprising a damper provided to an outer end of the stacker crane in a traveling direction, wherein
- the damper comprises:
- a rod member extending along the traveling direction;
- a first biasing member configured to bias the rod member outward in the traveling direction;
- and
- a movement restriction mechanism configured to allow inward movement of the rod member in the traveling direction and restrict outward movement of the rod member in the traveling direction when the rod member has moved inward in the traveling direction;
- wherein the damper is provided on at least two outer ends of the stacker crane in the traveling direction;
- and
- a first stacker crane and a second stacker crane, wherein
- the first stacker crane includes the damper on its outer end in the traveling direction on a side closer to the second stacker crane,
- the second stacker crane includes the damper on its outer end in the traveling direction on a side closer to the first stacker crane, and
- the damper of the first stacker crane and the damper of the second stacker crane are disposed at positions such that the dampers are adapted to contact each other.
9 more elements
A damping device jig for use with a damping device comprising a damper provided to an outer end of a stacker crane in a traveling direction, wherein
- the damper comprises:
- a rod member extending along the traveling direction;
- a first biasing member configured to bias the rod member outward in the traveling direction;
- and
- a movement restriction mechanism configured to allow inward movement of the rod member in the traveling direction and restrict outward movement of the rod member in the traveling direction when the rod member has moved inward in the traveling direction;
- wherein
- the movement restriction mechanism comprises:
- a plurality of engaged portions aligned along the traveling direction, the plurality of engaged portions each being a protrusion formed on an outer peripheral surface of the rod member, and each having an inner side surface in the traveling direction inclined with respect to the traveling direction and an outer side surface in the traveling direction orthogonal to the traveling direction;
- and
- an engaging portion having elasticity along a direction of approaching the outer peripheral surface of the rod member and configured to engage with the outer side surface of each engaged portion in the traveling direction;
- and
- configured to release engagement of the engaging portion with the engaged portion, the damping device jig comprising a jig body in which a hole, through which the rod member is insertable, is formed, wherein
- the jig body has a contact portion configured to contact the engaging portion such that the engaging portion elastically deforms in a direction of being separated from the rod member.
10 more elements
Dependencies are inferred from the claim text.