Anti-slip Cable Tie Ball Bearing Locking Mechanism
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Solution Overview
Problem
Conventional cable ties often allow for undesirable slack when bundling cables due to slippage, as they lack effective mechanisms to securely lock the band in place.
Innovation Solution
An anti-slip cable tie design featuring a locking body with a ball bearing and a sphere or similar component that prevents the ball bearing from moving backwards, ensuring the band remains locked by creating frictional force when the band is wrapped around cables, thereby minimizing slippage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a conventional cable tie locking mechanism is used, then the cable tie can be easily manufactured and operated, but the band allows slippage and creates undesirable slack
Solution Approach 1:
A ball bearing is introduced as an intermediary element between the band and the locking body. The ball bearing transfers and amplifies the locking force through mechanical leverage, creating a reliable anti-slip mechanism while keeping the overall structure relatively simple. The ball bearing acts as a force multiplier that enhances the locking action without requiring complex additional components.
Solution Approach 2:
The locking mechanism utilizes dynamic movement of the ball bearing within the locking body. The ball bearing can move freely during insertion but becomes mechanically locked in position once the band is tightened, transitioning from a mobile state to a fixed state. This dynamic behavior enables reliable locking while maintaining ease of operation during installation.
2Device complexity
If a simple locking mechanism is used, then the device complexity is low, but the band slips and creates slack
Solution Approach 1:
The ball bearing serves as a mechanical intermediary that amplifies the user's tightening force. By inserting the ball bearing into the locking body, the system converts a simple insertion motion into an effective locking action that prevents slippage, thereby improving ease of operation without significantly increasing device complexity.
Solution Approach 2:
The locking mechanism is segmented into distinct functional elements: the locking body with its internal cavity, the ball bearing as a separate movable component, and the band. This segmentation allows each element to perform its specific function efficiently - the locking body provides the structural framework, the ball bearing provides the locking action, and the band provides the tightening force, collectively achieving reliable operation with minimal complexity.
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 anti-slip cable tie effectively reduces slack by securely locking the band in place, maintaining tension and preventing unwanted slippage, thus providing a more reliable bundling solution.
Implementation Method 1
the band pushes a ball bearing within the housing toward an inner wall of the housing... the ball bearing, being close to a front of the wall, prevents the end of the band from slipping and locks the band in place
Data Source
AI summary
A cable tie includes a band that extends lengthwise from a first end to a second end. The cable tie also includes a housing, affixed near the second end, with a first opening to receive the first end of the band when the first end of the band is brought toward the housing in a loop. The housing includes: walls that enclose a space and have a stop toward the second end of the band; a first mass in the space; and a second mass placed in the space and between the first mass and the stop. When the first end is inserted into the housing, the first end passes under the first mass and the second mass and exerts a pull on the first mass toward the second mass. When the first mass is pulled toward the second mass, the second mass acts as a spring between the first mass and the stop and prevents the first mass from hitting the stop. After the first end is inserted into the housing and when the first end is being pulled out of the housing, due to a force exerted by the second mass to the first mass and the walls, the first mass squeezes the first end against the bottom of the housing and locks the first end in the housing.