Vehicle Link Mechanism with Angled Telescopic Elements
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Solution Overview
Problem
Existing vehicles with leanable vehicle body frames and two front wheels face challenges in improving riding comfort while minimizing the increase in size of the entire vehicle in the front-rear direction, as existing shock absorbing devices have limited stroke lengths and narrow oscillation ranges, leading to compromised comfort and increased vehicle size.
Innovation Solution
The vehicle incorporates a link mechanism with telescopic elements that support the front wheels, allowing for increased stroke lengths and displacement in the up-and-down direction, while optimizing the link mechanism's angle settings to minimize front-rear movement, thus enhancing comfort and controlling vehicle size.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the stroke length of shock absorbing devices is increased to improve riding comfort, then the movable range of front wheels in the front-rear direction increases, but the vehicle size in the front-rear direction becomes larger
Solution Approach 1:
The patent changes the primary direction of shock absorption from the front-rear direction to the up-and-down direction. The telescopic elements are configured to extend primarily in the up-and-down direction while providing shock absorption functionality, thereby decoupling the stroke length requirement from the front-rear vehicle dimension and allowing comfortable suspension travel without increasing overall vehicle length
Solution Approach 2:
The patent modifies the orientation parameter of the telescopic elements, positioning them at specific angles (θ1 and θ2) relative to the vertical direction. This angular parameter change allows the telescopic elements to provide adequate shock absorption stroke in the up-and-down direction while minimizing their projection in the front-rear direction, thus resolving the contradiction between comfort and compactness
2Adaptability or versatility
If the oscillation range of shock absorbing devices is increased to improve riding comfort, then the movable range of front wheels in the front-rear direction increases, but the vehicle size in the front-rear direction becomes larger
Solution Approach 1:
The patent redirects the oscillation movement from the front-rear direction to the up-and-down direction through the telescopic element configuration. By anchoring the telescopic elements to the link mechanism and positioning them to move vertically, the system achieves wide oscillation range for adaptability without extending the vehicle's front-rear dimension
Solution Approach 2:
The patent employs specific angular parameters (θ1 and θ2) for the telescopic elements to optimize the trade-off between oscillation range and vehicle compactness. These parameter settings ensure that the telescopic elements can provide sufficient vertical travel for comfort and adaptability while maintaining a compact front-rear footprint
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 configuration improves riding comfort by increasing stroke lengths and reducing front-rear movement, effectively suppressing the increase in vehicle size in the front-rear direction, thereby providing a balanced solution for comfort and spatial efficiency.
Implementation Method 1
a right telescopic element which is positioned directly ahead of the vehicle body frame in the front-rear direction and is able to expand or contract in an expansion and contraction direction which extends in the up-and-down direction of the vehicle body frame
Implementation Method 2
the upper cross member and the lower cross member turn with respect to the vehicle body frame and relative positions of two front wheels in an up-and-down direction and a front-rear direction of the vehicle body frame change
Implementation Method 3
a right shock absorbing device which movably supports the right front wheel in the up-and-down direction of the vehicle body frame
Data Source
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AI summary
The present invention provides a vehicle wherein ride comfort can be improved with a minimal increase in overall vehicle length. The acute angle (θL) that an imaginary plane that perpendicularly intersects both an upper axis and a lower axis of a cross member makes with the up-down direction of a vehicle frame is smaller than the acute angles (θTR and θTL) that the telescoping directions of telescopic elements make with the up-down direction of the vehicle frame and the acute angles (θSR and θSL) that the axes of side rods make with the up-down direction of the vehicle frame. The acute angles (θTR and θTL) that the telescoping directions of the telescopic elements make with the up-down direction of the vehicle frame are larger than the acute angle (θL) that the imaginary plane that perpendicularly intersects the upper and lower axes of the cross member makes with the up-down direction of the vehicle frame but the same as or smaller than the acute angles (θSR and θSL) that the axes of the side rods make with the up-down direction of the vehicle frame.