Telescopic Cargo Bike Frame Length Adjustment
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Solution Overview
Problem
Conventional cargo bikes face challenges with increased weight, cumbersome steering, and limited parking options due to their large wheelbase and length, making them difficult to maneuver and park, especially in cramped spaces, and existing solutions either compromise on transport capacity or complicate usage by requiring complex folding mechanisms.
Innovation Solution
A cargo bike design featuring a two-part receiving element with movable front and rear parts, allowing for continuous or stepless adjustment of length, width, and height, enabling flexible adaptation to user needs without requiring disassembly or complex handling, and incorporating a telescopic frame and adjustable cover elements for enhanced usability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Quantity of substance
If the wheelbase and length of the cargo bike are increased to accommodate larger receiving elements for transporting more goods, then the transport capacity is improved, but the maneuverability and ease of parking are worsened
Solution Approach 1:
The cargo bike implements a telescopic frame structure where the front frame part can be extended or retracted relative to the rear frame part along the longitudinal direction. This dynamic adjustment capability allows the wheelbase to be lengthened for increased transport capacity when needed, and shortened for improved maneuverability and parking in confined spaces, directly resolving the contradiction between transport capacity and ease of operation.
2Quantity of substance
If the receiving element is made larger to increase volume for transporting heavier and bulkier goods, then the transport capacity is improved, but the weight of the bike increases making it more cumbersome to handle
Solution Approach 1:
The telescopic frame allows the receiving element volume to be dynamically adjusted. When the front frame part is retracted, the receiving element volume is reduced and the overall bike weight is decreased, making it easier to handle. When the front frame part is extended, the receiving element volume increases for transporting heavier and bulkier goods. This dynamic adjustment resolves the contradiction between transport capacity and bike weight.
Data Source
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AI summary
The present invention relates to a cargo bike (3) with a frame (1, 2) comprising a front frame part (1) and a rear frame part (2), and with a receiving element (4, 5) for receiving loads, wherein the two frame parts (1, 2) are designed to be movable relative to each other in the longitudinal direction (X) such that the length of the cargo bike (3) is variable. The cargo bike (3) according to the invention is characterized in that the receiving element (4, 5) has a front receiving element part (4) which is connected to the front frame part (1) and not connected to the rear frame part (2), and that the receiving element (4, 5) has a rear receiving element part (5) which is connected to the rear frame part (2) and not connected to the front frame part (1), so that the length of the receiving element (4, 5) is variable due to the mobility of the two frame parts (1; 2) relative to each other.