Glide Board Binding Front Unit Cam Release Mechanism
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Solution Overview
Problem
Conventional gliding board bindings experience unreliable release behavior during falls due to a two-stage release process, leading to jerky resistance and potential false triggering, especially in touring mode, where the holding force needs to balance between reliability and preventing false releases.
Innovation Solution
A front unit with a cam mechanism that converts rotary movement into an opening movement, ensuring the holding device opens directly associated with rotary movement, providing a high holding force in normal operation while preventing false releases, and incorporating a My release mechanism for touring bindings that releases the shoe when a specific torque is exceeded, allowing for immediate detachment during falls.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the holding force of the holding device is reduced to enable reliable release in the second stage, then the release reliability is improved, but false triggering during sporty driving or under special loads increases
Solution Approach 1:
The release process is divided into two distinct stages: first the heel unit releases the heel section, then the front holding device releases the front section. This segmentation allows each stage to be optimized independently - the heel release initiates rotation while the front release provides controlled detachment with adjustable holding force, preventing false triggering while ensuring reliable release.
Solution Approach 2:
The holding force of the front holding device is set to a specific parameter range that balances two requirements: high enough to prevent false triggering during sporty driving and special loads, but low enough to allow reliable release in the second stage when the shoe has already rotated. The cam mechanism parameters are optimized to achieve this force balance.
2Object-affected harmful factors
If the holding force of the holding device is increased to prevent false releases, then false triggering is reduced, but release reliability in the event of a fall deteriorates
Solution Approach 1:
By segmenting the release into two stages with the heel unit acting first, the system allows the front holding device to maintain higher holding force without compromising overall release reliability. The heel release initiates the rotation process, and only after this rotation begins does the front holding device need to release, ensuring both reliability and prevention of false releases.
3Reliability
If a two-stage release process is used with a stop, then release control is improved, but the release process becomes jerky and resistance increases
Solution Approach 1:
The stop mechanism that caused jerky resistance in conventional bindings has been removed. Instead, the cam mechanism provides continuous guidance of the holding device during rotation, enabling smooth opening without abrupt stops or jerky resistance while maintaining controlled release behavior.
Solution Approach 2:
The cam mechanism acts as an intermediary between the rotating holding device and the opening movement. It converts the rotary movement into smooth opening motion through its cam profile, eliminating the need for stops and providing continuous, jerk-free operation during the release process.
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
Ensures reliable release behavior during falls by integrating a cam mechanism for direct opening and a My release mechanism, preventing false triggering and ensuring quick detachment in touring mode, thus enhancing safety and performance.
Implementation Method 1
The movement conversion from the rotary movement of the holding device into an opening movement of the holding device can be realized by a cam mechanism
Implementation Method 2
the holding device has a cam follower, which is pressed against the cam section by a force of a tensioning device
Implementation Method 3
the shoe also jumps out of the front unit due to the acting inertial forces
Data Source
Figure 1a~1e
Figure 2a~2e
Figure 3a~3e
AI summary
The invention provides a front unit (10) for a slideboard binding, comprising a base (14) designed for attachment to a slideboard, which defines a slideboard plane (E), and a front retaining device for holding a front section of a slideboard shoe (12), wherein the front retaining device is rotatably mounted on the base (14) to allow rotation of both the front retaining device and the slideboard shoe (12) about a common vertical axis extending substantially orthogonally to the slideboard plane (E) when the front retaining device is closed. The front unit (10) further comprises a release arrangement (84, 86) which converts a relative movement between the retaining device and the base (14) into an adjustment movement of the retaining device from the engagement position to a release position.