Archery Bow Limb Cup Attachment via Riser Extension
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Solution Overview
Problem
Modern archery bows require greater manufacturing precision to optimize performance and consistency, particularly in the alignment and attachment of bow components.
Innovation Solution
The design incorporates a riser with an extension featuring a cavity and screw threads, which engages with a limb cup and fastener to provide precise alignment and attachment of the bow's components, ensuring accurate positioning and reduced compression on the limb cup.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Manufacturing precision
If traditional attachment methods are used for limb cup to riser, then manufacturing precision requirements are reduced, but alignment accuracy and component consistency deteriorate
Solution Approach 1:
The attachment structure is divided into distinct functional segments: the riser with integrated extension, the limb cup as a separate component, and the fastener system. This segmentation allows each component to be manufactured independently with precise tolerances, improving overall alignment accuracy while maintaining manageable complexity through modular design
Solution Approach 2:
The extension protruding from the riser acts as an intermediary element between the riser and limb cup. It provides a precise mounting surface and alignment reference that facilitates accurate attachment, effectively mediating the connection between the two main components and enabling higher manufacturing precision
2Reliability
If greater manufacturing precision is implemented in bow components, then performance consistency improves, but manufacturing cost and complexity increase
Solution Approach 1:
The extension is pre-formed as an integral part of the riser during riser manufacturing, establishing precise alignment references and mounting surfaces before the limb cup attachment process. This preliminary action ensures that when the limb cup is attached, the alignment is already optimized, leading to consistent performance across manufactured bows
Solution Approach 2:
The extension is merged with the riser as a single integrated component, eliminating the need for separate alignment fixtures or additional adjustment mechanisms. This merging reduces the number of parts and manufacturing steps while maintaining high precision, thereby improving reliability without proportionally increasing complexity
Data Source
AI summary
In some embodiments, an archery bow comprises a riser comprising a first surface and a cavity extending beneath the first surface. A limb cup is engaged with the riser. The limb cup comprises an outer surface. A fastener comprises a stem and a head. The stem is oriented in the cavity. The head contacts the first surface and the outer surface