Ski Boot Lever Mechanism for Mountaineering
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Solution Overview
Problem
Existing ski mountaineering boot designs face difficulties in operation due to bulkiness, susceptibility to damage, and size inadaptability, particularly with lever devices that are difficult to operate and prone to damage during ascent or walking.
Innovation Solution
A ski boot design featuring a hinge for a spoiler between the shell and leg portion, a horizontal strap with a fork and traction lever, and a knurled wheel mechanism that allows for adjustable clamping and release of the leg portion, enabling smooth transition between ascending and descending modes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a lever device is used for closing and clamping the leg portion, then the leg portion can be clamped to the shell, but the device becomes bulky and difficult to operate
Solution Approach 1:
The invention extracts the clamping function from a complex lever device and implements it through a simpler strap system with a buckle. The strap (14) with buckle (24) provides the clamping function without requiring a tall vertical lever, thereby reducing bulkiness and improving ease of operation while maintaining reliable clamping of the leg portion to the shell.
2Reliability
If a tall leg portion is constructed to accommodate a lever device, then the clamping function is achieved, but the boot becomes difficult to adapt to small sizes or women's boots
Solution Approach 1:
The invention replaces the fixed tall leg portion structure with a dynamic strap system that can be adjusted in length and positioning. The strap (14) can be positioned at different heights and lengths to accommodate various boot sizes and leg shapes, including women's boots with different calf shapes, thereby improving size adaptability while maintaining the clamping function.
3Reliability
If a lever device is positioned vertically on the rear of the leg portion, then the clamping mechanism works, but the device becomes susceptible to damage by accidental impact
Solution Approach 1:
The invention extracts the vulnerable vertical lever component and replaces it with a strap and buckle system that is inherently more resistant to impact damage. The strap (14) with buckle (24) does not require a tall vertical structure that protrudes and is susceptible to accidental impact with steps or rocks, thereby reducing damage risk while maintaining the clamping mechanism's functionality.
Data Source
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AI summary
A ski boot, in particular for ski mountaineering, characterised by comprising: - a rigid shell (4) with sole (6), - an inshoe (46) of soft material, - a leg portion (8) pivoted to the shell and provided on one of its sides with a lever (34) for operating a traction cable (26) engaging in a retention element (28) provided on the other side, - a member (18) pivoted to the rear of the shell and interposed between the rear of the leg portion and the rear of the inshoe, said lever being provided with a coupling element which, when in the lever-closed configuration, engages said leg portion and said spoiler simultaneously, to block their articulation.