Cargo Bike Child Seat Mounting Bracket with Height Adjustment
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Solution Overview
Problem
Existing child seat fastening systems in cargo bicycle containers are inadequate, leading to potential loosening during accidents, especially for small children, due to insufficient attachment security.
Innovation Solution
A child seat holding device with a main holding element attached to the cargo bike container's inner wall, utilizing webbing straps and a height-adjustable connecting element, along with an additional holding element for secure and adjustable attachment, ensuring reliable and safe positioning of child seats.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If child seats are secured using simple attachment methods in cargo bike containers, then the device complexity is reduced, but the reliability of attachment deteriorates, leading to potential loosening during accidents
Solution Approach 1:
The fastening system is divided into separate functional components: a holding element attached to the cargo bike container, a connecting element with adjustment mechanism, and a support element connected to the child seat. This segmentation allows each component to be optimized independently while maintaining overall reliability without excessive complexity.
Solution Approach 2:
The connecting element acts as an intermediary between the holding element and the support element, providing a reliable mechanical connection that distributes forces effectively. This intermediary component ensures secure attachment while maintaining adjustability, resolving the contradiction between reliability and complexity.
2Adaptability or versatility
If the child seat position is fixed, then the device complexity is reduced, but the adaptability deteriorates, preventing height adjustment for different children or preferences
Solution Approach 1:
The connecting element incorporates a dynamic adjustment mechanism that allows the position of the support element relative to the holding element to be changed. This dynamic feature enables height adjustment for different children or preferences while maintaining a relatively simple structure through movable connections rather than complex mechanical systems.
3Strength
If the holding element is attached directly to the cargo bike container walls, then the device complexity is reduced, but the strength of attachment deteriorates, insufficient for accident forces
Solution Approach 1:
The attachment system uses composite construction combining rigid metal connecting brackets with flexible webbing straps. The metal brackets provide strong attachment points on the cargo bike container, while the flexible straps accommodate positioning adjustments. This composite approach achieves high attachment strength without requiring an overly complex rigid structure.
Solution Approach 2:
The connecting element serves as an intermediary that bridges the holding element and support element with multiple attachment points. This intermediary structure distributes forces across multiple connection points, enhancing overall attachment strength while maintaining manageable complexity through modular design.
4Object-affected harmful factors
If shock forces are transmitted directly to the child seat, then the device complexity is reduced, but the harmful factors increase, causing direct shock transmission to the child
Solution Approach 1:
The connecting element and support element configuration provides beforehand cushioning by creating a distributed force transmission path. The webbing straps and connecting brackets act as cushioning elements that absorb and distribute shock forces before they reach the child seat, protecting the child from direct shock transmission without requiring a complex active shock absorption system.
Data Source
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AI summary
A child seat mounting device for a cargo bike container (50) comprises a main mounting element (62) and, optionally, an additional mounting element (64). The child seat (60) is held by a support element that includes two support straps (96). The support element (96) is connected to the main mounting element (62) via a connecting element (90). This connecting element is height-adjustable to change the position of the child seat (60).