Stroller Frame Profile with Integrated Attachment Projections
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Solution Overview
Problem
Existing frame structures for strollers and child seats require additional auxiliary constructions for attaching add-on parts, making them complex and costly to manufacture, and difficult to repair without damaging the frame profile.
Innovation Solution
A frame structure with a predominantly closed cross-sectional profile featuring inward projections and grooves that allow for easy attachment and detachment of add-on parts using fasteners, enabling simple and cost-effective manufacturability and ease of repair.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If traditional circular or flattened tube cross-sections are used, then manufacturing is simple, but additional auxiliary constructions are required for attaching add-on parts
Solution Approach 1:
The patent merges the attachment function directly into the frame profile by integrating inwardly projecting projections and corresponding grooves into the cross-sectional structure. This eliminates the need for separate auxiliary attachment constructions while maintaining manufacturing simplicity through extrusion processes.
Solution Approach 2:
The frame profile is designed with multiple inwardly projecting projections that can serve dual purposes: maintaining structural integrity of the hollow profile and providing standardized attachment points for various add-on parts. This multi-functional design reduces the need for specialized auxiliary components.
2Adaptability or versatility
If auxiliary constructions like pipe clamps are used for attachment, then add-on parts can be fastened, but manufacturing costs increase
Solution Approach 1:
The attachment capability is merged into the frame profile itself through integrated projections and grooves. This eliminates the need for separate pipe clamps or auxiliary fastening components, thereby reducing manufacturing costs while maintaining versatility in attaching different add-on parts.
Solution Approach 2:
The standardized projection-groove interface provides universal attachment capability for various add-on parts directly through the frame profile, eliminating the need for multiple types of specialized auxiliary constructions and reducing overall manufacturing costs.
3Adaptability or versatility
If auxiliary constructions are used for attachment, then fastening is possible, but repair becomes difficult without destroying the frame profile
Solution Approach 1:
The attachment system is segmented into separable components: the frame profile with integrated projections and the add-on parts with corresponding grooves. This segmentation allows for easy disassembly and reassembly without damaging the frame profile, as the connections are designed to be detached through the groove-projection interface.
Solution Approach 2:
The standardized projection-groove interface provides a universal connection system that facilitates both attachment and detachment operations. The design enables repeated assembly and disassembly cycles for repair and reconfiguration purposes without compromising the integrity of the frame profile.
Data Source
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AI summary
Disclosed is a frame structure (1) of a perambulator, child seat or the like, comprising a profiled frame element (2) that has a substantially constant cross-section along the direction (X) thereof; the profiled frame element (2) is formed by an at least predominantly closed cross-section and has an inward-projecting first protrusion (10) designed to come into engagement with fastening means (6).