Fishing reel

Patent metadata

Field	Value
Publication number	US-9775333-B2
Application number	US-201514716825-A
Country	US
Kind code	B2
Filing date	May 19, 2015
Priority date	Oct 27, 2014
Publication date	Oct 3, 2017
Grant date	Oct 3, 2017

Abstract

This invention is characterized by a reel body, a pinion gear that is supported by the rotation function of the reel body, a one-way clutch that is fitted to the pinion gear and that limits the rotation of the pinion gear to one direction, a rotor that is fitted to the pinion gear and rotates with it while also containing a boss section, a part of which is connected to the pinion gear and extends to the one-way clutch, a magnetic body that is formed and makes a circuit around the periphery of the rotation direction of the boss section, a magnet that is configured facing the rotational radius direction with a gap in the magnetic body, with the magnet that faces the rotational radius direction with a gap in the magnetic body being sandwiched between the magnetic plates in a direction facing the spool shaft, and the magnetic sealing mechanism wherein is found magnetic fluid that is placed in the gap between the magnetic plates and the magnetic body, and whereby the space between the cover member and the magnetic body is sealed.

First claim

What is claimed is:

1. A fishing reel comprising:
a reel body,
a rotating member rotatably supported and extending through the reel body,
a one-way clutch fitted to the rotating member,
a rotor connecting and rotating with the rotating member, wherein the rotor includes a cylindrical portion, a front wall and a boss section that is connected to a pinion gear, wherein the rotor defines a housing space therein,
a magnetic seal assembly disposed in the housing space between the front wall of the rotor and the one-way clutch, wherein the magnetic seal assembly includes a magnet sandwiched between first and second magnetic plates,
a magnetic body disposed between the rotating member and the magnetic seal assembly, wherein a gap is defined between the magnetic body and the magnetic seal assembly, wherein the magnetic body is an annular member fitted to the boss section, wherein the magnetic body includes a cylindrical portion and a disc-shaped portion, wherein the cylindrical portion is positioned between the boss section and the magnetic fluid, and wherein the disc-shaped portion is fitted to the rotating member, and
a magnetic fluid disposed in the gap between the magnetic seal assembly and the magnetic body, whereby the magnetic fluid seals the gap.

2. The fishing reel of claim 1 further comprising a cover that includes a cylindrical portion and a front portion having a front surface and a central opening extending axially therethrough, wherein the cover defines a housing space therein, wherein the one-way clutch is housed in the housing space, and wherein the magnetic seal assembly is secured to the front surface of the cover.

3. The fishing reel of claim 2 wherein the front portion of the cover includes an annular recess defined therein, and wherein at least the magnet and the second magnetic plate are positioned in the recess.

4. The fishing reel of claim 3 wherein the first magnetic plate has a diameter that is greater than a diameter of the second magnetic plate, and wherein the first magnetic plate is secured to the front surface of the cover.

5. The fishing reel of claim 4 wherein the first magnetic plate is not positioned in the recess.

6. The fishing reel of claim 1 wherein the rotating member comprises a pinion.

7. The fishing reel of claim 1 wherein the one-way clutch includes an inner ring, and wherein the magnetic body is separate from the inner ring.

8. The fishing reel of claim 1 wherein the one-way clutch includes an inner ring, and wherein the disc shaped portion of the magnetic body is positioned between the inner ring and the boss section.

9. A fishing reel comprising:
a reel body,
a rotating member rotatably supported by the reel body,
a one-way clutch prohibiting the rotation of the rotating member in one direction and that is fitted to the rotating member,
a rotor connecting and rotating with the rotating member, wherein the rotor includes a boss section, a connecting part connected to the rotating member and extending to the one-way clutch,
a magnetic body that forms an outer periphery of the boss section, wherein the magnetic body is an annular member fitted to the boss section, wherein the magnetic body includes a cylindrical portion and a disc-shaped portion, wherein the cylindrical portion is positioned between the boss section and the magnetic fluid, and wherein the disc-shaped portion is fitted to the rotating member,
a magnet sandwiched between magnetic plates in a direction along the rotating member, wherein the magnet and magnetic plates are configured facing the rotation radius direction and form a gap with the magnetic body, and
a magnetic fluid disposed in the gap between the magnetic plates and the magnetic body, whereby the gap between the magnetic plates and the magnetic body is sealed.

10. The fishing reel of claim 9 wherein the rotating member comprises a pinion.

11. The fishing reel of claim 9 wherein the one-way clutch includes an inner ring, and wherein the magnetic body is separate from the inner ring.

12. The fishing reel of claim 9 wherein the one-way clutch includes an inner ring, and wherein the disc shaped portion of the magnetic body is positioned between the inner ring and the boss section.

Assignees

• Shimano Kk

Inventors

• Hirayama Hirokazu
• Hiraoka Hirokazu

Classifications

• A01K89/01

  with pick-up, i.e. with the guiding member rotating and the spool not rotating during normal retrieval of the line (A01K89/027 takes precedence) · CPC title

• A01K89/0117

  Anti-reverse mechanisms · CPC title

• A01K89/011221 Primary

  with line or water shields · CPC title

• A01K89/0106

  Ratchet-type drives · CPC title