Tubular Handle Mounting via Segmented Positioning Posts
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Solution Overview
Problem
Conventional handle mounting structures for tubular bodies, such as walking sticks, are insecure and difficult to manufacture, and they restrict the telescoping movement or adjustment of the handle's position and angle.
Innovation Solution
A tubular body with insertion holes and connecting members featuring positioning posts, a coupling base with a mounting hole, a position-limiting member, and a blocking member that securely mounts the handle by abutting against the coupling base, allowing for easy assembly and adjustment of the handle's position and angle without requiring drilling.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a clamping base with bolts and nuts is used to mount the handle on the tubular body, then the handle can be securely fixed, but the manufacturing complexity increases due to drilling holes through the clamping base
Solution Approach 1:
The mounting structure is divided into separate components: the C-shaped clamping base that wraps around the tubular body, and the positioning members with holes that align with the tubular body surface. This segmentation eliminates the need to drill through the entire clamping base, as holes are only drilled in the positioning members which are mounted separately.
Solution Approach 2:
Positioning members act as intermediary components between the clamping base and the tubular body. These positioning members have pre-drilled holes that align with the tubular body, serving as mediators that transfer the mounting function without requiring direct drilling through the clamping base itself.
2Reliability
If a rivet is used to secure the handle on the tubular body, then the handle is firmly fixed, but the rivet interferes with telescoping movement between inner and outer tubes
Solution Approach 1:
The problematic rivet is extracted from the system and replaced with a different mounting mechanism. The new design uses positioning members with holes that accommodate the telescoping tubes, removing the interference element while maintaining handle security through the clamping base and positioning member combination.
Solution Approach 2:
The mounting structure transitions from a static rigid connection (rivet) to a dynamic configuration where the positioning members with holes allow movement. The holes in the positioning members can accommodate the telescoping action, enabling the structure to adapt dynamically to the changing distance between inner and outer tubes.
3Reliability
If holes are drilled through the clamping base to mount the handle, then secure fixation is achieved, but the manufacturing difficulty increases
Solution Approach 1:
The mounting function is segmented into the clamping base (which provides the C-shaped wraparound structure) and separate positioning members (which contain the holes). This segmentation allows holes to be drilled only in the positioning members, which are smaller and easier to machine, rather than drilling through the entire clamping base structure.
Solution Approach 2:
Positioning members serve as intermediary components that carry the hole-drilling function. Instead of drilling holes directly in the clamping base, the positioning members are used as mediators that are mounted to the clamping base and provide the necessary hole alignment, simplifying the manufacturing process.
4Stability of the object's composition
If the handle is mounted using a rigid rivet connection, then position stability is achieved, but adjustability of handle position and angle is lost
Solution Approach 1:
The mounting system transitions from a static rigid rivet connection to a dynamic adjustable configuration. The positioning members with holes, combined with the clamping base, create a system that can accommodate different positions and angles while maintaining stability through the clamping action, allowing the handle to be adjusted and then securely fixed.
Solution Approach 2:
The clamping base and positioning member combination serves multiple functions: it provides secure fixation like a rivet, but also enables adjustment to different positions and angles. This universal mounting structure can accommodate various handle configurations while maintaining stability, replacing the single-function rigid rivet connection.
Data Source
AI summary
An assembly structure of a tubular body and a handle includes a tube, two connecting members, a handle, a position-limiting member and a blocking member. The tubular body has at least one pair of insertion holes. Each connecting member has a concave surface with a positioning post. The connecting members are mounted on the outer periphery of the tubular body with the positioning posts inserted into the insertion holes respectively. The handle is connected to a coupling base. The coupling base has a mounting hole and is mounted around the connecting members. The position-limiting member and the blocking member are provided at two opposite ends of the connecting members respectively and abut against two opposite ends of the coupling base respectively. The assembly structure allows the handle to be easily and securely mounted and positioned on the tubular body.