Lever Positioner Assembly with Modular Adjuster Screw
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Solution Overview
Problem
Existing lever positioners for vehicles are difficult to repair or replace due to their complexity, lack modular components, and lack versatility, making them unsuitable for the adjustable needs of recreational riders and racers.
Innovation Solution
A lever positioner assembly that includes a lever, a lever holder, and a positioner, with an adjuster screw and coupler assembly, allowing the lever to be adjusted relative to the handlebar without moving the actuator, enabling customizable positioning for user comfort and reducing fatigue.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If conventional lever positioners are designed to adjust lever position, then lever positioning flexibility is improved, but device complexity increases making them difficult to repair or replace
Solution Approach 1:
The lever positioner assembly is divided into distinct modular components: a lever holder that attaches to the handlebar, a lever that pivots on the holder, and a separate positioner mechanism with an adjuster screw. This segmentation allows each component to be independently manufactured, inspected, and replaced, reducing overall device complexity while maintaining positioning flexibility.
Solution Approach 2:
The lever positioner incorporates a dynamic adjustment mechanism where the adjuster screw can be selectively rotated to change the lever's released position. The coupler assembly includes slots that allow the lever's pivot point to be repositioned along the lever holder, enabling the system to adapt to different user needs while maintaining a simple overall structure.
2Adaptability or versatility
If lever positioners have multiple adjustment components, then adaptability is improved, but ease of repair deteriorates due to difficult access to interior components
Solution Approach 1:
The adjuster screw and positioner mechanism are designed as externally accessible components that can be adjusted and serviced without disassembling the lever assembly. The adjuster screw protrudes from the lever positioner, allowing users to easily access and adjust the lever position. The coupler assembly's slots and detents are also externally accessible, enabling simple repair and maintenance operations.
3Device complexity
If lever positioners lack modular components, then device complexity is reduced, but ease of repair deteriorates requiring intricate repair procedures
Solution Approach 1:
The lever positioner assembly is divided into distinct modular components: a lever holder that attaches to the handlebar, a lever that pivots on the holder, and a separate positioner mechanism with an adjuster screw. This segmentation allows each component to be independently manufactured, inspected, and replaced, reducing overall device complexity while maintaining positioning flexibility.
4Device complexity
If lever position is fixed, then device complexity is reduced, but adaptability deteriorates preventing customization for different hand sizes
Solution Approach 1:
The lever positioner incorporates a dynamic adjustment mechanism where the adjuster screw can be selectively rotated to change the lever's released position. The coupler assembly includes slots that allow the lever's pivot point to be repositioned along the lever holder, enabling the system to adapt to different user needs while maintaining a simple overall structure.
Data Source
AI summary
A lever positioner assembly that is coupled to a handlebar of a vehicle comprises a lever, a lever holder, and a lever positioner. The lever moves relative to the handlebar between a released position and an engaged position. The lever holder holds the lever. Additionally, the lever holder is coupled to and movable relative to the handlebar. The lever positioner is coupled to the lever and is positioned on the opposite side of the lever from the handlebar. Additionally, the lever positioner can include an adjuster screw that is selectively rotated to adjust the released position of the lever relative to the lever holder and the handlebar. The lever and the lever holder can move as a unitary structure during movement of the lever between the released position and the engaged position.