Damper for elevator, and elevator
AssigneeMitsubishi Electric Corporation
InventorsYutaro Hanawa, Hisashi Furuzawa
Life of this patent
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Abstract
A damper for elevator, and an elevator, that enable reduction of the maximum deceleration of a lifting/lowering body by suppressing deformation of a foamed body for absorbing impact. The damper for elevator includes: urethane foam having a collision surface with which a lifting/lowering body is to collide; and an outer peripheral member attached to the outer side of the side-part surface of the urethane foam and having an inner side surface bowed outward, wherein impact by collision of the lifting/lowering body is buffered by deformations of the urethane foam and the outer peripheral member.
Claims19
A damper for elevator comprising:
- a foamed body having, at an upper part, a collision surface with which a lifting/lowering body is to collide;
- and
- an outer peripheral member which is attached to an outer side of a side-part surface of the foamed body, the outer peripheral member being bowed outward such that a center part thereof in a height direction on a side facing the side-part surface protrudes outward relative to an upper end part that is on the upper part side and on the side facing the side-part surface, and relative to a lower end part that is on aside opposite to the upper part and on the side facing the side-part surface, wherein
- an upper end surface of the outer peripheral member is covered by the foamed body, and
- impact by collision of the lifting/lowering body is buffered by compressive deformations of the foamed body and buckling deformation of the outer peripheral member.
The damper for elevator according to claim I. wherein
- the outer peripheral member has a hollow cylindrical shape.
A damper for elevator comprising:
- a foamed body having, at an upper part, a collision surface with which a lifting/lowering body is to collide;
- and
- an outer peripheral member which is attached to an outer side of a side-part surface of the foamed body and of which a side facing the side-part surface is bowed outward, wherein
- a height of the outer peripheral member is not greater than a height of the foamed body,
- impact by collision of the lifting/lowering body is buffered by compressive deformations of the foamed body and buckling deformation of the outer peripheral member, and
- a thickness of the outer peripheral member is smallest at a center part of the outer peripheral member in the height direction and gradually increases towards an upper end part of the outer peripheral member that is on the upper part side of the outer peripheral member and a lower end part of the outer peripheral member that is on a side of the outer peripheral member that is opposite to the upper part.
A damper for elevator comprising:
- a foamed body having, at an upper part, a collision surface with which a lifting/lowering body is to collide;
- and
- an outer peripheral member which is attached to an outer side of a side-part surface of the foamed body and of which a side facing the side-part surface is bowed outward, wherein
- the outer peripheral member is composed of a plurality of plate-shaped members arranged so as to be spaced from each other along a circumference of the foamed body, and
- impact by collision of the lifting/lowering body is buffered by compressive deformations of the foamed body and buckling deformation of the outer peripheral member.
Dependencies are inferred from the claim text.