Cantilevered Handlebar Mount for Display Units
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Solution Overview
Problem
Existing mounts for operating and/or display units on vehicles with handlebars, such as bicycles and motorcycles, lack stability, especially under rough conditions, making them unsuitable for large and functionally advanced HMI units.
Innovation Solution
A holder with a cantilevered carrier and a clamp attachment surrounding the handlebar tube, featuring a strut and rod element with adjustable angles and materials to enhance stability, and comprising two mirror-symmetrical elements for damping vibrations, is designed to provide a central and secure fixation.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Device complexity
If a simple clamp attachment with cantilevered carrier is used, then the device complexity is reduced and ease of manufacture is improved, but the stability and reliability under rough conditions deteriorates
Solution Approach 1:
The holder is divided into two separate mirror-symmetrical elements (left and right sides), each independently attached to the handlebar. This segmentation allows each element to be optimized for stability while maintaining overall structural simplicity and ease of manufacture.
Solution Approach 2:
The holder elements are made from glass fiber-reinforced plastic, combining the ease of plastic manufacturing with enhanced mechanical strength and vibration resistance. This composite material approach improves reliability without significantly increasing device complexity.
2Stability of the object's composition
If the strut and rod element have high rigidity, then the stability is improved, but the natural vibrations increase due to higher resonant frequency
Solution Approach 1:
The holder elements have non-uniform cross-sections with varying wall thicknesses and reinforcement patterns in different regions. This local quality variation allows optimization of rigidity in critical areas while maintaining lower overall resonant frequency to reduce natural vibrations.
Solution Approach 2:
The design parameters of the strut and rod element (cross-section dimensions, wall thickness, material properties) are specifically adjusted to achieve different resonant frequencies between these components. This parameter optimization reduces resonant vibrations while maintaining necessary stability.
3Device complexity
If a single central attachment point is used, then the device complexity is reduced, but the theft-proof capability and stability deteriorate
Solution Approach 1:
The attachment system is segmented into two separate mirror-symmetrical elements that are independently fixed to the handlebar. This segmentation enhances theft-proof capability by requiring multiple attachment points while keeping each individual element relatively simple in design.
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 holder achieves reduced natural vibrations and lower acceleration values, ensuring a stable and reliable arrangement of the operating and/or display unit on the handlebars, even under challenging conditions.
Implementation Method 1
The clamp can be attached to the handlebar tube in a simple manner by means of a screw connection by clamping
Implementation Method 2
As a result, the operating and/or display unit rests on two receptacles. In particular, vibrations of the receptacle in the horizontal direction are largely damped in this way
Implementation Method 3
the strut and the rod element can have a different resonant frequency. For this purpose, the strut and the rod element can have different rigidities
Data Source
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AI summary
The support comprises a fastening element (10) for fixation at a handlebar. A receptacle (11) is used for control and display unit (8). The receptacle is formed as a carrier such that the carrier is projected away from the fastening element. The fastening element is designed as a bracket. A prop (13) is aligned diagonally inward to the bracket, and a ranging element (14) is aligned parallel to the bracket. The bracket, prop and ranging element are made of thermoplastic resin, glass fiber or glass-bead reinforced plastic.