Fishing Rod Cover Adjustment for Stable Bag Storage

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Solution Overview

Problem

Fishing rods that are designed to be compact for storage often move around in bags, leading to potential damage or breakage due to gaps formed during transportation.

Innovation Solution

A fishing rod with a cylindrical cover member that can be attached to the original rod, featuring an adjustment mechanism to adjust the storage dimension by changing the attachment position, preventing rods from protruding and allowing the cover member to function as a rear grip when detached.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Volume of moving object

If the fishing rod is designed with a compact structure for storage, then the storage dimension is reduced, but the fishing rod moves around in the bag and may be damaged

Engineering Contradiction:
Improvestorage dimensionVSAvoidstability during transportation
Core Design Contradiction:
Volume of moving objectVSReliability

Solution Approach 1:

The cover member is designed to be adjustable along the original rod, allowing the storage dimension to be dynamically changed according to different bag sizes. This adjustability ensures the fishing rod can adapt to various storage spaces while maintaining stability and preventing movement during transportation.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The attachment position of the cover member on the original rod can be changed to adjust the storage dimension. By changing this parameter, the fishing rod can be optimized for different storage requirements while ensuring it fits snugly in the bag without moving, thus preventing damage.

Inventive Principle:
Principle #35Parameter changes

2Volume of moving object

If the cover member is attached to the original rod to prevent protrusion, then the storage dimension is reduced, but the attachment position needs to be adjustable for different storage sizes

Engineering Contradiction:
Improvestorage dimensionVSAvoidadjustment mechanism
Core Design Contradiction:
Volume of moving objectVSDevice complexity

Solution Approach 1:

The original rod is divided into multiple sections with attachment positions at different locations. The cover member can be attached at any of these segmented positions, allowing adjustment of the storage dimension without requiring a complex continuous adjustment mechanism.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The cover member serves multiple functions: it prevents rod protrusion during storage, acts as a grip when detached, and its adjustable attachment position allows it to adapt to different storage dimensions. This multi-functionality reduces the need for additional complex adjustment mechanisms.

Inventive Principle:
Principle #6Universality (Multi-functionality)

3Ease of operation

If the cover member is used as a rear grip when detached, then the operability at use is improved, but the structure becomes more complex

Engineering Contradiction:
Improveoperability at useVSAvoiddual-function structure
Core Design Contradiction:
Ease of operationVSDevice complexity

Solution Approach 1:

The cover member is designed to serve dual purposes: preventing rod protrusion during storage when attached, and functioning as a rear grip when detached. This multi-functionality improves ease of operation without requiring separate components, as the same cover member adapts to different uses.

Inventive Principle:
Principle #6Universality (Multi-functionality)

Solution Approach 2:

The functions of the storage cover and the rear grip are merged into a single component. The cover member's design allows it to effectively perform both the protective function during storage and the ergonomic grip function during use, simplifying the overall structure.

Inventive Principle:
Principle #5Merging (Combining)

Data Source

PatentUS12419295B2Fishing rod
Publication Date: 2025.09.23 DAIWA SEIKO CORPORATION
  • US12419295B2 patent drawing
  • US12419295B2 patent drawing
  • US12419295B2 patent drawing

AI summary

A fishing rod capable of reducing a dimension when stored, the fishing rod having a structure that is difficult to move even when the fishing rod is accommodated in a bag or the like. A fishing rod of the invention includes a cylindrical cover member that is attached to an original rod that stores a plurality of rods so that the plurality of rods do not protrude. The cover member can constitute a rear grip to be attached to and detached from the original rod, and the original rod and the cover member are provided with an adjustment mechanism capable of adjusting a dimension when stored by changing an attachment position of the cover member when the cover member is attached to the original rod.