Offset Connector Handle Segments Anti-Rotation
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Solution Overview
Problem
Existing hand tools and implements with long handles face challenges in shipping and storage due to their size, as well as durability issues with fasteners that often lead to loosening and breaking, compromising ergonomics and safety.
Innovation Solution
A detachable and collapsible handle system with offset connector bodies that allow handle segments to be end-mounted, providing anti-rotational features and compact storage, enabling efficient shipping and storage while maintaining ergonomics and durability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If a long handle is used for hand tools, then ergonomics and user comfort are improved, but shipping and storage space requirements increase
Solution Approach 1:
The handle is divided into multiple telescopic segments that can be extended to full length for ergonomic operation and retracted to compact size for shipping and storage, directly resolving the contradiction between operational comfort and space requirements
2Strength
If fasteners pass through the implement head into the handle, then the handle is securely attached, but the fasteners are prone to breaking and loosening
Solution Approach 1:
An offset connector body serves as an intermediary component between the implement head and handle segments, providing a robust attachment interface that eliminates the use of vulnerable fasteners passing through the handle while maintaining secure connection
Solution Approach 2:
The traditional mechanical fastener system (screws, bolts, or rivets passing through the handle) is replaced with a snap-fit or press-fit mechanism within the offset connector body, eliminating the reliability issues associated with fastener loosening and breaking
3Volume of moving object
If the handle is made detachable and collapsible, then shipping and storage efficiency is improved, but the complexity of the handle structure increases
Solution Approach 1:
The handle is segmented into multiple telescopic sections that can be collapsed into each other, reducing storage volume while maintaining structural integrity through a standardized connector design
Solution Approach 2:
The offset connector body serves multiple functions: it connects the implement head to the handle segments, provides anti-rotational features, and enables the telescopic collapse mechanism, thereby managing complexity through multi-functionality
4Stability of the object's composition
If anti-rotational features are added to handle segments, then rotation and twisting are prevented, but manufacturing complexity increases
Solution Approach 1:
Anti-rotational features such as square or hexagonal cross-sections on handle segments are implemented, preventing rotation through geometric asymmetry while maintaining compatibility with standard manufacturing processes for extruded or molded components
Data Source
AI summary
An offset connector subdivides a long, slender tool or implement handle. The offset connector may be provided with one or more unitary or replaceable grips. The additional grips serve as secondary or tertiary hand holds that enable more adaptable and capable ergonomic manipulation of the tool or implement. The offset connector is inserted intermediate between a primary handle grip and the tool or implement head, thereby subdividing the long slender tool or implement handle into at least two separate handle segments. Each handle segment is inserted into a handle segment receiver socket, and is affixed therein using a bolt, screw, or other fastener that is longitudinally co-axial with the longitudinal axis of the handle segment. Some embodiments establish fixed spacing between the primary handle, secondary handle, and implement. Other embodiments provide variable spacing therebetween.