Drag knob

US10575509B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10575509-B2
Application numberUS-201816217457-A
CountryUS
Kind codeB2
Filing dateDec 12, 2018
Priority dateJan 31, 2018
Publication dateMar 3, 2020
Grant dateMar 3, 2020

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 drag knob for adjusting a drag force of a spinning reel includes a knob body, a screwable member and a rotation prevention member. The knob body includes a knob portion rotatable in a circumferential direction of the spool shaft, and an accommodating recess. The knob body protrudes forward in an axial direction and extends in a radial direction. The accommodating recess has a rearward opening in the axial direction of the spool shaft. The screwable member is disposed in the accommodating recess of the knob body and is screwed onto a front end of the spool shaft. The rotation prevention member is configured to prevent the screwable member from rotating relative to the knob body, has a width narrower than a width of the knob portion and protrudes from the screwable member in a same direction as an extending direction of the knob portion of the knob body.

First claim

Opening claim text (preview).

What is claimed is: 1. A drag knob screwed onto a front end of a spool shaft and for adjusting a drag force of a drag mechanism of a spinning reel, comprising: a knob body including a knob portion rotatable in a circumferential direction of the spool shaft, protruding forward in an axial direction of the spool shaft and extending in a radial direction of the spool shaft, and an accommodating recess having a rearward opening in the axial direction of the spool shaft; a screwable member disposed in the accommodating recess of the knob body and screwed onto the front end of the spool shaft; and a rotation prevention member configured to prevent the screwable member from rotating relative to the knob body, having a width narrower than a width of the knob portion and protruding from the screwable member in a same direction as an extending direction of the knob portion of the knob body. 2. The drag knob according to claim 1 , wherein the rotation prevention member comprises a shaft member penetrating the screwable member in the radial direction of the spool shaft. 3. The drag knob according to claim 1 , wherein an outer circumferential surface of the screwable member is cylindrical. 4. The drag knob according to claim 1 , wherein the knob body has an engagement recess engaging the rotation prevention member. 5. The drag knob according to claim 1 , wherein the rotation prevention member is integral with the screwable member.

Assignees

Inventors

Classifications

  • between spool and spool shaft · CPC title

  • Frame details · CPC title

  • A01K89/027Primary

    with pick-up {, i.e. for reels with the guiding member rotating and the spool not rotating during normal retrieval of the line} · CPC title

  • A01K89/028Primary

    Continuously applied (for closed face reels A01K89/0275) · CPC title

  • Hand crank features · 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 US10575509B2 cover?
A drag knob for adjusting a drag force of a spinning reel includes a knob body, a screwable member and a rotation prevention member. The knob body includes a knob portion rotatable in a circumferential direction of the spool shaft, and an accommodating recess. The knob body protrudes forward in an axial direction and extends in a radial direction. The accommodating recess has a rearward opening…
Who is the assignee on this patent?
Shimano Kk
What technology area does this patent fall under?
Primary CPC classification A01K89/01121. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Tue Mar 03 2020 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 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).