Pole Grip Self-Latching Clamp for Temperature-Stable Loop Fastening
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Solution Overview
Problem
Existing pole grip fastening mechanisms are prone to fatigue and temperature-dependent elastic deformation, leading to inconsistent fixing effects, and often require active thumb displacement for securing the hand-retaining device, which is undesirable in sports applications.
Innovation Solution
A pole grip with a self-latching mechanism featuring a clamping element that moves between an inserting position and a locked position, allowing for secure trapping of the hand-retaining device without relying on spring forces, using a rotatable or displaceable clamping element with defined equilibrium positions and latching elements to ensure secure engagement.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If elastic deformation of hook-like device is used for self-latching, then easy fixing and prevention of slipping out is improved, but fatigue phenomena and temperature-dependent performance deteriorate
Solution Approach 1:
The invention extracts the elastic deformation mechanism from the self-latching system and replaces it with a rigid clamping element that moves between defined positions. The return force mechanism is separated from the clamping element itself, allowing the clamping element to be rigid and fatigue-resistant while still achieving automatic return to the open position through the action of the return force.
Solution Approach 2:
The invention changes the operational parameter of the clamping element from elastic deformation to rigid positional movement. Instead of relying on material elasticity that degrades with temperature and fatigue, the system uses a rigid element that moves between discrete positions (open and closed) driven by geometric constraints and return forces, making performance independent of material elastic properties.
2Extent of automation
If elastic deformation is used for self-latching, then automatic latching is improved, but temperature-dependent performance deteriorates
Solution Approach 1:
The invention replaces the elastic deformation mechanism (which is highly temperature-dependent) with a rigid mechanical system using return forces. The automatic latching function is achieved not through elastic recovery but through a return force mechanism that actively pushes the clamping element to the open position, making the system's automatic operation independent of material elastic properties and thus temperature-stable.
3Reliability
If active thumb displacement is used for fastening, then secure closing is improved, but ease of operation deteriorates
Solution Approach 1:
The invention implements self-service by designing the clamping element to automatically return to the open position through the action of return forces. This eliminates the need for active thumb displacement to close the fastening - the system serves itself by automatically opening when the coupling element is inserted, while still requiring secure closing through the self-latching mechanism when the coupling element is pulled away.
Data Source
AI summary
A stick handle (1) is described, in particular for walking sticks, trekking sticks, alpine ski sticks, cross-country sticks and Nordic walking sticks, with a handle body (14) and with a device (8-11, 15) for the self-latching fastening of a hand-holding device (25), in particular in the form of a hand loop or a glove. For the self-latching fastening, the device (8-11, 15) comprises at least one recess (10) for receiving a coupling element (33), in particular preferably in the form of a clip or a loop, provided on the hand-holding device (25), wherein the device (8-11, 15) has a clamping element (8), and the recess (10) of the device (8-11, 15) is exposed in an insertion position (A) of the clumping element (8) in such a manner that the coupling element (33) of a hand-holding device (25) not connected to the stick handle (1) can be inserted into said recess (10), and wherein the device (8-11, 15) can be brought by tilting or displacement of the clamping element (8) into a locking position (B) in which the recess (10) is closed and the coupling element (33) is trapped in the recess (10).