Braking device and fishing reel comprising the same

US12239116B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-12239116-B2
Application numberUS-202217980708-A
CountryUS
Kind codeB2
Filing dateNov 4, 2022
Priority dateNov 4, 2021
Publication dateMar 4, 2025
Grant dateMar 4, 2025

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A braking device of a fishing reel comprises: a braked part made of a conductor, the braked part being attached to a spool designed to wind a fishing line; a braking part generating braking force by providing a magnetic field for the braked part; a part being detected that is provided on the braked part, and a rotation detection sensor sensing rotation of the spool by detecting the part being detected.

First claim

Opening claim text (preview).

What is claimed is: 1. A braking device of a fishing reel, comprising: a braked part made of a conductor, the braked part being attached to a spool configured to wind a fishing line; a braking part configured to generate braking force by providing a magnetic field for the braked part; a part being detected that is provided on the braked part; and a rotation detection sensor configured to detect rotation of the spool by detecting the part being detected, wherein the braking part comprises two cylindrical magnets opposite to each other in a radial direction of the braking part, and the rotation detection sensor is disposed between the two cylindrical magnets in the radial direction of the braking part. 2. The braking device of a fishing reel, according to claim 1 , wherein the rotation detection sensor is a reflective photosensor, and the part being detected is provided on the braked part by applying two types of surface treatments with different reflection coefficients to an end face of the braked part. 3. The braking device of a fishing reel, according to claim 1 , wherein the rotation detection sensor is a transmissive photosensor, and the part being detected is provided on the braked part by putting alternately a light blocking portion and a light transmission portion on the braked part. 4. The braking device of a fishing reel, according to claim 1 , wherein the rotation detection sensor is a capacitive proximity sensor, and the part being detected is provided on the braked part by forming a depression and a projection on a surface of the braked part facing the rotation detection sensor. 5. The braking device of a fishing reel, according to claim 1 , wherein the braking part is designed to adjust braking force by shifting at least one of the two cylindrical magnets by a motor. 6. A fishing reel comprising the braking device according to claim 1 .

Assignees

Inventors

Classifications

  • by varying dielectric · CPC title

  • the beams of light being detected by photocells · CPC title

  • the sensed object being the obturating part · CPC title

  • motor-driven · CPC title

  • using magnets · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US12239116B2 cover?
A braking device of a fishing reel comprises: a braked part made of a conductor, the braked part being attached to a spool designed to wind a fishing line; a braking part generating braking force by providing a magnetic field for the braked part; a part being detected that is provided on the braked part, and a rotation detection sensor sensing rotation of the spool by detecting the part being d…
Who is the assignee on this patent?
Globeride Inc
What technology area does this patent fall under?
Primary CPC classification A01K89/033. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Mar 04 2025 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 6 related publications on this page (citations in our corpus or others sharing the same primary CPC).