Fishing Rod Attachment Layering for Clean Detachment
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Solution Overview
Problem
Conventional fishing rods with fiber-reinforced resin attachments face issues with inefficient attachment replacement due to strong bonding, leading to damage and difficulty in detaching incorrectly fixed or damaged attachments.
Innovation Solution
A fishing rod design featuring a first layer with high tensile elongation and a second layer of fiber-reinforced resin, where the first layer is wound around the attachment and rod body, allowing for efficient detachment and reattachment by peeling off both layers without leaving residue on the rod body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Strength
If a fiber-reinforced resin sheet is used to attach an attachment to the rod body, then the attachment is firmly fixed to the rod body, but the attachment cannot be easily detached and the sheet breaks and remains on the rod body surface
Solution Approach 1:
The bonding structure is segmented into two distinct layers: a first layer made of fiber-reinforced resin sheet for strong bonding, and a second layer made of a different material that facilitates easy detachment. This segmentation allows each layer to perform its specific function - the first layer provides strong fixation while the second layer enables clean removal without leaving residue on the rod body.
Solution Approach 2:
The second layer acts as an intermediary between the first layer and the rod body surface. When detachment is needed, this intermediate layer is removed first, allowing the first layer to be cleanly separated from the rod body without the fiber-reinforced resin sheet breaking and remaining on the surface.
2Ease of manufacture
If an attachment is manually attached to the rod body, then the attachment can be fixed to the rod body, but the attachment may be mistakenly fixed to an unintended location or askew
Solution Approach 1:
Positioning marks are provided on the rod body surface before the attachment is actually fixed. These marks indicate the correct positioning and orientation, allowing the user to align the attachment properly before applying the bonding sheets, thereby preventing mistaken fixation to unintended locations or askew positioning.
3Reliability
If the attachment is firmly bonded to the rod body, then the attachment remains secure during use, but it requires significant effort to detach and replace the attachment
Solution Approach 1:
The bonding system is divided into two functional layers: the first layer provides strong, reliable bonding to keep the attachment secure during use, while the second layer is designed to be easily removed. This segmentation allows the attachment to remain firmly fixed during normal operation but enables quick and easy removal when replacement is needed, significantly reducing the time and effort required for attachment replacement.
Data Source
AI summary
A fishing rod has a rod body and an attachment portion, and includes: an attachment attached to the outer peripheral face of the rod body with the attachment portion; a first layer formed by winding a first sheet around both the attachment portion and the rod body; and a second layer formed by winding a second sheet made of fiber-reinforced resin on the outer side of the first sheet, wherein the tensile elongation measured in accordance with JIS K 7161-1 of the first sheet is greater than that measured in accordance with JIS K 7161-1 of the second sheet.