Extendable Rope Sleeve for Climbing Descent Protection
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Solution Overview
Problem
Existing rock climbing rope protection solutions are either ineffective in preventing abrasion during rappelling or limit the functionality of the rope with permanent/semi-permanent attachments, failing to adequately protect the rope from damaging surfaces.
Innovation Solution
An extendable sleeve with a breakaway wrist strap that detaches easily, providing a flexible barrier to prevent direct contact between the rope and damaging surfaces, while allowing for controlled expansion and retrieval.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a protective sleeve is permanently attached to the rope, then the rope is protected from abrasion, but the rope's functionality is limited and it cannot be reused
Solution Approach 1:
The protective system is divided into separate components: the extendable sleeve that can be detached and reattached to different rope sections, and the wrist strap that controls sleeve deployment. This segmentation allows the rope to maintain full functionality while receiving protection where needed during the descent.
Solution Approach 2:
The protective sleeve transitions from a static, permanently attached state to a dynamic, movable system that can be extended along the rope as the descent progresses. The sleeve moves with the rope through the rappelling device, providing continuous protection at the contact point without limiting rope manipulation.
2Device complexity
If a protective sleeve covers only a fixed section of the rope, then the structure is simple, but it cannot protect multiple contact points during descent
Solution Approach 1:
The extendable sleeve is designed to move and extend along the rope as the climber descends. As the rope passes through the rappelling device, friction causes the sleeve to gradually extend, allowing it to protect multiple contact points that occur at different positions along the rope during the descent process.
Solution Approach 2:
The sleeve's length parameter changes dynamically during use. It starts in a compressed state covering a short section and gradually extends to cover a much longer portion of the rope as friction from the rappelling device pulls it along, thereby increasing protection coverage without increasing initial device complexity.
3Stability of the object's composition
If the protective apparatus creates high friction with the rope, then the sleeve stays in place, but it may cause sudden jerks or entanglement
Solution Approach 1:
The friction parameter is carefully controlled to be sufficient for sleeve extension but not excessive. The sleeve material and rappelling device interaction are designed to create just enough friction to gradually extend the sleeve along the rope without causing sudden jerks, entanglement, or difficulty in detachment.
Data Source
AI summary
An extendable rope protecting sleeve is provided as an apparatus that extends over an existing climbing rope providing a barrier that protects said climbing rope from fraying and weakening as a result of direct contact with damaging surfaces. The expandable rope protecting sleeve shrouds a climbing rope during a climber's descent with minimal interference to the climber's range of motion. The apparatus provides the extendable sleeve with a detachable engagement through a breakaway wrist strap in order reduce the likelihood of the climber being encumbered by the apparatus. Additionally, the detachable engagement is provided in a manner that avoids a sudden jerking sensation upon detachment. Through the combination of the aforementioned components the apparatus is able to slowly expand over a climbing rope covering exposed sections of the climbing rope during the climber's descent.