Guy Link Bending for Crane Height Reduction
Solution Overview
Problem
The existing methods for transporting and storing the rising and falling bodies of work machines, such as cranes, face challenges in minimizing the height during transportation and reducing the time and effort required for attaching and detaching guy links, as they often necessitate additional space or complex procedures.
Innovation Solution
The design incorporates a guy link configuration that allows for bending and folding, enabling it to be stored outside the width of the front strut, thus eliminating the need for vertical space between the rising and falling members, and utilizes receiving jigs to securely position and fasten the guy link, simplifying the attachment and detachment process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the guy link is disposed between the first rising and falling member and the second rising and falling member in the vertical direction, then the guy link can be stored during transportation, but the height of the rising and falling body in the vertical direction is increased
Solution Approach 1:
The guy link is disposed outside the first rising and falling member in the width direction rather than between the members in the vertical direction. This dimensional change from vertical storage to lateral storage reduces the height of the rising and falling body while maintaining the ability to store the guy link during transportation.
Solution Approach 2:
The guy link is nested outside the first rising and falling member, utilizing the space lateral to the member. This nesting approach allows the guy link to be stored compactly alongside the member structure without increasing the overall height, effectively using available space in a different spatial configuration.
2Length of stationary object
If the guy link is removed from the rising and falling members for separate transportation, then the height is reduced, but time and effort for attaching and detaching the guy link are increased
Solution Approach 1:
The guy link is merged with the first rising and falling member by disposing it outside the member in a fixed position. This combining approach allows the guy link to remain attached during transportation without increasing height, eliminating the need for separate attachment and detachment operations and thereby reducing time and effort.
Solution Approach 2:
The guy link is preliminarily disposed outside the first rising and falling member in a ready-to-use position before transportation. This preliminary positioning ensures that the guy link is already in place and requires no additional attachment operations when needed, saving time and effort during setup.
3Length of stationary object
If the guy link is disposed outside the first rising and falling member in the width direction, then the height is reduced, but the guy link may interfere with the second rising and falling member
Solution Approach 1:
The guy link is disposed outside the first rising and falling member at a specific lateral position where it does not interfere with the second rising and falling member. This localized positioning ensures that the guy link is stored in a space that is充分利用 without causing interference with other components.
Solution Approach 2:
The asymmetric disposition of the guy link outside the first rising and falling member in the width direction creates an unbalanced spatial arrangement that avoids interference with the second rising and falling member. This asymmetric placement optimizes space utilization while preventing harmful interactions between components.
Data Source
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AI summary
A first width direction bending portion (50b) bendably connects a portion of a guy link (50) on a distal end side with respect to a first link portion (50a) to the first link portion (50a) in a width direction. When the guy link (50) is in a stored state, the portion of the guy link (50) located on the distal end side with respect to the first width direction bending portion (50b) is disposed outside the first link portion (50a) in the width direction. When the guy link (50) is in a stored state, at least a portion of the guy link (50) is disposed on the outer side in the width direction than a front strut (32) and on a back surface (21a) or a side surface of a lower jib 21.