Threaded Handlebar Adjustment Mechanism for Bicycle Grip Width
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Solution Overview
Problem
Existing bicycle handlebar grip systems are cumbersome to adjust in width, difficult to shorten evenly, and can become unsafe when using spacers, which can loosen and reduce resilience, limiting variable width adjustment and posing a safety risk under load.
Innovation Solution
A non-rotatable bushing with an internal thread is installed in the handlebar, allowing a screw-like adjustment mechanism to be screwed into the handlebar tube for adjustable grip length, enabling a resilient and variable grip system without the need for tools, using a U-shaped bushing and a clamping ring for secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If spacers or plugs are inserted into the handlebar tube to change handlebar width, then the handlebar width can be adjusted, but the handlebar loses resilience and becomes less safe under load
Solution Approach 1:
The invention uses a threaded adjustment mechanism that allows dynamic adjustment of the grip position along the handlebar tube. The screw thread enables continuous positioning while maintaining a secure, resilient connection that preserves handlebar strength under load, unlike rigid spacers that compromise structural integrity.
2Adaptability or versatility
If multiple plugs are inserted into one another to achieve desired handlebar width, then width adjustment is possible, but the adjustment process becomes cumbersome and time-consuming
Solution Approach 1:
The invention segments the adjustment function into a single integrated threaded mechanism rather than requiring multiple nested plugs. This allows the grip to be positioned at any desired location along the handlebar tube through simple rotational adjustment, eliminating the time-consuming process of inserting and adjusting multiple components.
3Adaptability or versatility
If the handlebar is sawn off to change width, then the desired length can be achieved, but the process is difficult to reverse and may render the handlebar unusable
Solution Approach 1:
The threaded adjustment mechanism provides a reversible, non-destructive method for adjusting handlebar effective length. The grip can be repositioned anywhere along the tube by rotating the adjustment mechanism, allowing easy correction of adjustment errors without the permanent damage caused by sawing.
4Adaptability or versatility
If plugs are used to widen the handlebar, then width adjustment is achieved, but the plugs can loosen and cause noises inside the grip
Solution Approach 1:
The threaded adjustment mechanism creates a self-locking friction connection that prevents loosening under vibration and load. The continuous thread engagement distributes mechanical stresses evenly, eliminating the loose fit and rattling noises that occur with discrete plug components.
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
This solution simplifies handlebar width adjustment, ensures even length adjustment on both sides, maintains resilience, and enhances safety by providing a secure grip under load without the risks associated with spacers, allowing for stepless variable widening.
Implementation Method 1
a screw-like adjustment mechanism (5) is fitted in a bushing (12) in the area of the grip end (34) and which can be screwed into the inside of the handlebar tube end (11) by rotation and thus can also be moved in the direction of the handlebar center due to the connection with the bicycle grip
Data Source
AI summary
A bicycle grip with a tubular inner sleeve and a grip element surrounding the inner sleeve, and a clamping ring element connected to the bicycle grip for clamping the bicycle grip onto a handlebar, wherein a bushing is inserted into the hollow space of the handlebar on its face and which bushing has an internal thread into which an adjustment mechanism connected to the bicycle grip can be screwed for axially adjusting the handlebar width.