Lifting device

The lifting device addresses inefficiencies and safety concerns in existing lifting technologies for transition pieces by utilizing a pin insertion/removal mechanism and moving mechanisms to enable efficient and safe lifting operations.

JP7655840B2Active Publication Date: 2025-04-02KAJIMA CORP
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Patent Information

Application Number
JP2021190948
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Filing Date
2021-11-25
Publication Date
2025-04-02
Estimated Expiration
2041-11-25

AI Technical Summary

Technical Problem

Existing lifting devices for transition pieces are inefficient and pose safety risks due to the need for frequent lifting operations and the requirement for operators to climb the transition piece for leaning operations.

Method used

A lifting device comprising a pair of hanging pieces with first insertion holes, a pair of moving mechanisms with second insertion holes, and a pin insertion/removal mechanism, allowing for efficient lifting of transition pieces without the need for frequent manual lifting and reducing the risk of operator injury.

Benefits of technology

The lifting device enables efficient and safe lifting of transition pieces by allowing operators to control the lifting mechanism from a safe distance, reducing the frequency of manual lifting and enhancing overall work safety.

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Abstract

To provide a lifting device capable of efficiently carrying out an operation for lifting a transition piece and increasing the safety of the lifting operation.SOLUTION: A lifting device 60 comprises: a pair of suspension pieces 61 having first insert holes extending in an intersection direction D3 intersecting a vertical direction D1; a pair of moving mechanisms 62 having second insertion holes arrayed with the first insertion holes in the intersection direction D3 and movable in the vertical direction D1 with respect to the pair of suspension pieces 61; a pair of pin inserting / pulling-out mechanisms 64 having pins which can be inserted into / pulled out from the first and second insertion holes arrayed in the intersection direction D3; a connection member 63 connecting the pair of moving mechanisms 62 above a transition piece 3; and an operation unit operating insertion / pulling-out of pins 65 into / from the first and second insertion holes by the pin inserting / pulling-out mechanisms 64 and movement of the moving mechanisms 62 in the vertical direction D1.SELECTED DRAWING: Figure 3
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