Hose Clamp Pinching Surface Design for Balanced Operation
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Solution Overview
Problem
The existing hose clamps formed by bending a strip-like plate into a ring shape face difficulties in securing a sufficient width dimension for the second pinching portion due to the restriction of the through-hole's opening width, leading to unbalanced pinching operations.
Innovation Solution
The hose clamp is designed with a first and second pinching operation surface, where the second pinching surface is formed by a proximal region and an expansion region that can be unfolded to increase its width, allowing it to pass through the through-hole without interference, and then expanded to facilitate a balanced pinching operation, with features like protrusions and escape portions for safety.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If the hose clamp is formed by bending a strip-like plate material into a ring-like shape with a through-hole, then the clamp can be assembled by passing the second end portion through the through-hole, but the width dimension of the second pinching portion is restricted and becomes too small for balanced pinching operation
Solution Approach 1:
The second pinching portion is divided into a proximal region and an expansion region separated by a folding edge. The expansion region can be folded outward to increase the width dimension, allowing the pinching operation to be balanced while maintaining the ability to pass through the through-hole during assembly
Solution Approach 2:
The second pinching portion is designed with a folding edge that allows dynamic change in width dimension. During assembly, the expansion region is folded inward to reduce width for passing through the through-hole, and during pinching operation, it is unfolded outward to provide sufficient width for balanced operation
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
This design enables easier and balanced pinching operations by enlarging the second pinching surface's width, preventing finger injuries, and ensuring well-balanced stress distribution, while maintaining the hose clamp's sealing properties.
Implementation Method 1
a hose clamp which is formed into a ring-like shape by bending a strip-like plate material so as to cross itself in a peripheral plane to thereby form a tightening portion and which can tighten a connection portion between a hose and a mating member thereof by means of this tightening portion
Data Source
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AI summary
The pinching operation is facilitated. A hose clamp (H1) is formed by bending a strip-like plate material (1) into a ring-like configuration, and includes a first end portion (5) having a first pinching operation surface (9), and a second end portion (6) having a second pinching operation surface (15). A through-hole (7) is open near the center in the longitudinal direction of the first pinching operation surf ace (9). At the time of bending into ring-like configuration, expansion regions (19) arranged at both side portions in the width direction of the second pinching operation surface (15) are folded at folding edges (20) with respect to a proximal region (18), whereby the second pinching operation surface (15) is narrowed in the width direction and can enter the through-hole (7). After bending into ring-like configuration, the expansion regions (19) are unfolded at the folding edges (20) and regain a widened state.