Reel Seat Locking Surface for Scratch-Free Nut Travel
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Solution Overview
Problem
Existing reel seats suffer from weight and appearance deterioration due to unrestricted nut member movement, leading to scratches and compromised gripping comfort.
Innovation Solution
A reel seat design with an abutment locking surface formed in a semicircular region on the reel leg placement portion, restricting nut member movement and preventing scratches while reducing weight and improving gripping comfort.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If the nut member is allowed to move freely during rotation operation, then the floating hood can approach and separate from the fixed hood, but the nut member may get on the seat main body causing scratches and appearance deterioration
Solution Approach 1:
An abutment locking surface is introduced as an intermediary element between the nut member and the seat main body. This locking surface, formed in a semicircular region on the reel leg placement portion side, acts as a mediator that allows the nut member to abut against it during rotation operation, preventing direct contact between the nut member and the seat main body surface, thereby avoiding scratches while enabling floating hood movement
2Reliability
If a connection structure is added to connect the nut member to the floating hood, then the nut member movement can be restricted, but the weight of the reel seat increases
Solution Approach 1:
The invention extracts and eliminates the separate connection structure between the nut member and floating hood that existed in prior art. Instead, the abutment locking surface on the seat main body directly restricts the nut member movement during rotation operation. This removal of the intermediate connection structure reduces the overall weight while maintaining the reliability of movement control through the locking surface
3Weight of stationary object
If the abutment locking surface is formed at the end portion of the male screw portion, then the axial length can be shortened and weight reduced, but the gripping comfort may be affected
Solution Approach 1:
The abutment locking surface is formed with specific local quality characteristics: it is positioned in a semicircular region on the reel leg placement portion side with respect to 360° of the rotation operation range. This localized positioning allows the locking surface to restrict nut member movement effectively while maintaining sufficient gripping surface area and appropriate geometry for comfortable hand operation, thus balancing weight reduction with gripping comfort
Data Source
AI summary
A reel seat includes a seat main body including a reel leg placement portion, a fixed hood formed on one end side of the placement portion in an axial direction and fixes one end of the reel leg, and a male screw portion formed on another end side of the placement portion in the axial direction. A nut member that is screwed to the male screw portion and a floating hood that approaches/separates from the fixed hood by a rotation operation of the nut member are disposed in the seat main body, and an abutment locking surface against which an end surface of the nut member abuts when the nut member is fastened by the rotation operation is formed at an end portion on the placement portion side of unevenness of the male screw portion. The abutment locking surface is formed in a semicircular region on the placement portion side.