Winch Bar Chamfered Engagement for Stable Socket Insertion
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Solution Overview
Problem
Existing winch bars for securing cargo on trucks are difficult to insert into winch sockets, often leading to frustration, increased time, and potential hazards due to insufficient engagement and disengagement.
Innovation Solution
A winch bar design featuring a chamfered pin and multiple contact surfaces for improved engagement with the winch's drive hub, providing clear feedback on proper alignment and stability, reducing insertion difficulty and enhancing user safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a traditional winch bar is used, then the structure is simple, but the insertion into winch socket is difficult and engagement is insufficient
Solution Approach 1:
The winch bar incorporates a chamfered leading edge on the engagement portion that prepares the path for insertion into the winch socket before the main body engages. This preliminary action of cutting the chamfer allows the bar to self-align and enter the socket more easily, reducing insertion difficulty without requiring complex external tools or procedures
Solution Approach 2:
The winch bar is divided into distinct functional segments: a shaft portion for handling, an engagement portion with chamfered leading edge for socket insertion, and contact surfaces for securing. This segmentation allows each part to perform its specific function optimally - the chamfered portion handles insertion while the contact surfaces ensure secure engagement, improving ease of operation without excessive overall complexity
2Reliability
If a traditional winch bar is used, then the structure is simple, but the engagement with winch socket is insufficient leading to disengagement
Solution Approach 1:
The chamfered leading edge performs a preliminary engagement action by guiding the winch bar into proper alignment with the socket before full engagement occurs. This preliminary action ensures that the bar enters the socket at the correct angle and position, preventing misalignment that could lead to insufficient engagement or disengagement during operation
Solution Approach 2:
The multiple contact surfaces on the winch bar provide tactile and mechanical feedback to the user during insertion and engagement. As the bar engages with the socket, the contact surfaces make contact in a sequence that provides feedback on engagement progress, allowing the user to confirm proper engagement and reducing the risk of insufficient engagement leading to disengagement
3Productivity
If existing winch bars are used, then the design is simple, but user frustration and time consumption increase
Solution Approach 1:
The chamfered leading edge performs the preliminary action of creating an insertion path and self-aligning the winch bar with the socket before full engagement. This eliminates the need for users to repeatedly adjust the bar's angle or position, reducing frustration and the time required to properly engage each winch bar during cargo securing operations
Solution Approach 2:
The winch bar's chamfered design enables self-alignment and self-guidance into the socket during insertion. The geometry of the chamfered leading edge automatically orients the bar correctly as it approaches the socket, eliminating the need for user intervention to align components, thereby increasing productivity and reducing operational complexity
Data Source
AI summary
A winch system may include a winch bar and a winch. The winch may have a base, a spool that is rotatable relative to the base, and a drive hub fixed to the spool such that when the drive hub rotates, the spool also rotates. The winch bar may include a winch engagement portion at an end of a shaft, where the winch engagement portion includes a protrusion configured to engage a socket of the drive hub, where the winch engagement portion includes a first contact surface for contacting an outer surface of the drive hub, where the winch engagement portion includes a second contact surface for contacting the outer surface of the drive hub, and where the first contact surface is substantially parallel to the second contact surface.