Motorcycle Backrest Sliding Bracket Mechanism
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Solution Overview
Problem
Existing motorcycle backrest adjustment mechanisms fail to provide a compact and efficient way to increase the space between the backrest and the seat, leading to discomfort for pillion riders on long journeys.
Innovation Solution
A mechanism comprising a connecting bracket and a sliding bracket that allows the backrest to move towards and away from the seat, utilizing a fender bracket and central bracket system with a square connecting bracket and sliding mechanism to create adjustable space, enabling up to 4 inches of adjustment and flexibility for different motorcycle models.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Length of moving object
If a telescoping backrest mechanism is used to adjust height, then the backrest can be raised or lowered, but the space between the backrest and seat cannot be increased
Solution Approach 1:
The backrest mechanism transitions from a static height-adjustment system to a dynamic system that can both telescope vertically and slide horizontally. The sliding bracket enables the backrest to move forward and backward relative to the seat, creating adjustable sitting space while maintaining height adjustment capability.
Solution Approach 2:
A sliding bracket is introduced as an intermediary component between the backrest and the mounting structure. This sliding bracket allows independent horizontal movement of the backrest relative to the seat, enabling space adjustment without interfering with the telescoping height adjustment mechanism.
2Ease of operation
If a torsion adjustment mechanism is used for backrest, then angular adjustment is provided, but space between backrest and seat cannot be increased
Solution Approach 1:
The invention merges two adjustment functions into a single integrated mechanism: the torsion adjustment for angular positioning and the sliding mechanism for horizontal space adjustment. The backrest can simultaneously achieve both angular and positional adjustment through the combined action of these two mechanisms.
Solution Approach 2:
The adjustment system expands from one-dimensional angular adjustment (torsion) to two-dimensional adjustment by adding horizontal sliding movement. This allows the backrest to be positioned not only at different angles but also at different distances from the seat.
3Adaptability or versatility
If existing backrest adjustment mechanisms are installed, then some adjustment capability is provided, but the mechanism is not structurally compact and does not provide sufficient space adjustment
Solution Approach 1:
The sliding bracket mechanism serves multiple functions: it enables horizontal space adjustment, accommodates the telescoping motion, and provides mounting attachment points. This multi-functional design reduces the need for separate mechanisms for each adjustment type.
Solution Approach 2:
The telescoping backrest structure is nested within the sliding bracket assembly. The vertical telescoping motion occurs within the confines of the horizontal sliding mechanism, creating a compact integrated structure that provides both adjustment types without requiring excessive space.
Data Source
AI summary
The present invention is a mechanism for adjusting backrest of a seat of a motorcycle that moves backrest towards and away from seat thereby adjusting sitting space as desired for different users. The mechanism includes a connecting bracket and a sliding bracket. Connecting bracket connects backrest and central bracket which is a part of the motorcycle that conventionally connects backrest to fender bracket disposed on a fender. Sliding bracket is connected at a bottom portion of central bracket and slides on fender bracket. When sliding bracket slides, central bracket and connecting bracket slides, thereby sliding backrest towards and away from seat of motorcycle. Thus, as desired space between backrest and seat can be increased or reduced to provide comfortable sitting on seat.