Controlled Latch Clamp 90° Hook Movement
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Solution Overview
Problem
Existing pull action clamps lack a controlled latch mechanism that allows 90° of hook movement without interference, are costly to manufacture, and struggle with high holding forces while maintaining reliability against untoggling.
Innovation Solution
A novel controlled latch clamp design featuring a base member with a predetermined slot and pin arrangement, a handle pivotally connected to the base, a link member, and a hook that travels in a 90° arc and then linearly to ensure secure clamping without interference, using a toggle or wedge lock mechanism for enhanced holding force.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If the hook is fixed in position relative to the base member, then the clamp structure is simpler, but the hook interferes with the object being clamped during operation
Solution Approach 1:
The hook member is made dynamically movable relative to the base member through a pivot connection at its mid-portion, allowing it to rotate 90 degrees between open and closed positions. This dynamic capability enables the hook to clear obstacles and avoid interference with the clamped object while maintaining operational effectiveness.
2Force
If the clamp uses a conventional toggle mechanism, then it achieves high holding forces, but the closed clamp profile is larger and more complex
Solution Approach 1:
The link member connects to the hook at a point offset from the hook's pivot axis, creating a perpendicular dimension of motion. This dimensional change allows the toggle mechanism to achieve high holding forces while maintaining a compact closed profile, as the force multiplication occurs in a direction perpendicular to the hook's primary movement plane.
3Strength
If the clamp uses traditional manufacturing methods, then structural integrity is maintained, but manufacturing cost and assembly complexity increase
Solution Approach 1:
The clamp is divided into distinct modular components: base member, handle member, hook member, and link member, each with specific pivot connections. This segmentation allows each part to be manufactured independently using standard fabrication processes, simplifying production and enabling easy assembly through pivot connections while maintaining the overall structural integrity of the mechanism.
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 clamp achieves a lower profile, easier assembly, higher holding forces, and reduced risk of untoggling, while allowing 90° hook movement to prevent interference with the object being clamped, thus improving operational efficiency and cost-effectiveness.
Implementation Method 1
A bearing member is arranged between the base members and engages the hook
Data Source
AI summary
A controlled latch clamp including a base and a handle pivotally connected to the base. The clamp has a link pivotally connected to the handle and to a plunger. The plunger also being pivotally connected to the base. The clamp includes an arm connected to an end of the plunger.