Side-Extending Connecting Pin for Stacked Attachment Transport
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Solution Overview
Problem
Conventional methods for securing long attachments of working machines like crawler cranes in a vertical stack increase transport height, necessitating separate transportation or division of attachments, which raises costs.
Innovation Solution
A connecting device with first and second connected members and a connecting member that extends from side surfaces of attachments, allowing them to be stacked without increasing the overall height, using positioners to secure the attachments and a connecting pin for connection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If connecting tools like lugs are secured to the facing portions of attachments and pinned together, then the attachments can be securely connected in a vertical stack, but the transport height increases by the heights of the connecting tools
Solution Approach 1:
The connecting member is repositioned from a vertical arrangement (adding to transport height) to a horizontal arrangement (extending from side surfaces). This dimensional change allows the connection to occur laterally rather than vertically, eliminating the height penalty while maintaining connection security through the pin passing through both connected members horizontally.
2Length of stationary object
If attachments are transported separately or divided further to keep transport height limit, then the transport height limit is maintained, but the transport cost increases
Solution Approach 1:
Multiple attachments that would traditionally need to be transported separately are now merged into a single transport unit. The connecting device enables multiple attachments to be securely stacked vertically while maintaining a compact height profile, allowing them to be transported together on a single trailer rather than requiring multiple separate transport operations.
3Length of stationary object
If connecting members extend from side surfaces of attachments, then the height of stacked attachments is reduced, but the complexity of the connecting device increases
Solution Approach 1:
The connecting device is divided into distinct functional components: connected members that extend from the attachment side surfaces and a separate connecting member (pin) that joins them. This segmentation allows each component to perform its specific function independently, simplifying the overall design while achieving the height reduction goal.
Data Source
AI summary
A connecting device connects a first attachment and a second attachment constituting a working machine with each other. The connecting device includes a first connected member, a second connected member, and a connecting member (connecting pin 15). The first connected member extends outward from a first side surface of the first attachment, the first side surface extending in a longitudinal direction of the first attachment. The second connected member extends outward from a second side surface of the second attachment, the second side surface extending in a longitudinal direction of the second attachment, the second connected member facing the first connected member when the first attachment and the second attachment come into a connection state. The connecting member connects the first connected member and the second connected member with each other.