Integrated Line Roller for Spinning Reel Handling
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Solution Overview
Problem
Existing line rollers for spinning reels are difficult to handle due to their small size, making them prone to loss during maintenance.
Innovation Solution
A line roller design that integrates a bearing member, a retaining member, and a guide member, with an engagement recess on the guide member and an engagement protrusion on the retaining member, allowing for unitization and regulation of movement, making the assembly easier to handle.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the line roller is designed with separate small parts (guide member, bush, bearing), then the line roller can achieve proper functionality for guiding fishing line, but the parts become difficult to handle and are easily lost during maintenance
Solution Approach 1:
The patent combines the guide member, bush, and bearing into a single integrated line roller component. The guide member is formed with an integrated bush structure, and the bearing is housed within this integrated structure, eliminating the need for separate small parts that are difficult to handle and prone to loss during maintenance.
2Ease of manufacture
If the line roller components are kept separate for ease of assembly, then maintenance becomes simpler, but the small parts are easily lost and handling becomes difficult
Solution Approach 1:
The patent reduces the number of parts by merging the guide member, bush, and bearing into a single integrated component. This integration simplifies the overall device complexity while maintaining ease of assembly, as the integrated line roller can be installed as a single unit without handling multiple small separate parts.
3Stability of the object's composition
If the guide member is disposed radially outside the retaining member with engagement features, then the movement of retaining member and guide member is regulated, but the structure becomes more complex
Solution Approach 1:
The engagement features between the guide member and retaining member are integrated into the single-piece line roller structure. The engagement protrusion and engagement recess are formed as integral features of the merged component, providing stable movement regulation without adding separate complex parts.
Data Source
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AI summary
A line roller (3) for guiding fishing line onto a spool (130) of a spinning reel (100), includes a bearing member (4), a retaining member (5) and a guide member (6). The bearing member (4) includes an inner ring (41), an outer ring (42), and a rolling body (43). The retaining member (5) abuts both ends of the outer ring (42). The guide member (6) includes a guide surface (61) for guiding the fishing line, is disposed radially outside of the retaining member (5), and engages the retaining member (5).