Pipe Joint Clamp Restriction for Stable Pre-Tightening Assembly
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Solution Overview
Problem
The position of the clamp relative to the clamp mounting portion is unstable during assembly tasks due to work vibrations and weight, necessitating realignment of the hook and projection for easy tightening, which complicates the process.
Innovation Solution
A pipe joint with a pipe insertion part made of a softer and more elastic resin material, integrated with a joint body, featuring an annular tightening member and a restriction part that prevents axial and circumferential movement of the tightening member before operation, ensuring stable positioning for easier tightening.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the clamp is made with a tightening member that can move freely before tightening, then the tightening operation has flexibility, but the position of the clamp relative to the clamp mounting portion becomes unstable during assembly tasks
Solution Approach 1:
The restriction part is provided in advance on the clamp mounting portion to prevent movement of the tightening member before the tightening operation. This preliminary constraint ensures that the clamp maintains a stable position during assembly tasks, eliminating the need for realignment while still allowing flexibility during the actual tightening operation when the restriction is released.
2Strength
If the clamp is made heavier to improve tightening force, then the tightening operation becomes more effective, but the clamp position becomes less stable during assembly due to weight
Solution Approach 1:
The restriction part prevents the tightening member from moving in the axial direction before tightening, counteracting the effect of gravity on heavier clamps. This allows the use of heavier, more substantial clamps that can provide effective tightening force while the restriction part ensures they remain stable during assembly operations.
3Device complexity
If no restriction part is provided, then the structure is simpler, but realignment of hook and projection is necessary when the clamp moves, increasing operation time
Solution Approach 1:
The restriction part is incorporated into the clamp mounting portion structure, providing a simple yet effective solution that prevents clamp movement during assembly. This eliminates the need for time-consuming realignment operations while adding minimal structural complexity, as the restriction part is integrated into the existing mounting portion design.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The tightening operation is simplified by stabilizing the position of the tightening member, reducing the need for realignment and making the process more efficient.
Implementation Method 1
a pipe insertion part into which a pipe is to be inserted, the pipe insertion part being configured by a resin material with greater softness and elasticity than a material configuring the joint body
Data Source
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AI summary
A pipe joint includes a joint body, a pipe insertion part into which a pipe is to be inserted, an annular tightening member and a restriction part. The pipe insertion part is configured by a resin material with greater softness and elasticity than a material configuring the joint body, and is integrated with the joint body. The tightening member is disposed at an outer circumferential of the pipe insertion part and tightens the pipe insertion part from the outer circumferential side thereof by a tightening operation. The restriction part is provided at the pipe insertion part and, before the tightening operation, blocks movement of the tightening member in an axial direction of the pipe insertion part relative to the pipe insertion part and restricts rotation of the tightening member in the circumferential direction of the pipe insertion part relative to the pipe insertion part.