# US 2014/0151483 A1 · Drag knob and fishing reel using the same

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- Number: US 2014/0151483 A1
- Document ID: US20140151483A1
- Status: Published application
- Kind: A1
- Application number: 14/010,177
- Filed: 2013-08-26
- Published: 2014-06-05
- Earliest claimed: 2012-12-04
- Assignees: Shimano Inc.
- Applicants: Shimano Inc.
- Inventors: Hirokazu HIRAOKA
- Web page: https://patentgrep.com/patent/US20140151483A1

## CPC

- A01K 89/02: Brake devices for reels
- A01K 89/027: with pick-up {, i.e. for reels with the guiding member rotating and the spool not rotating during normal retrieval of the line}
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS

## Abstract

A drag knob for regulating drag force of a drag mechanism configured to brake rotation of a spool rotatably mounted to a reel unit of a fishing reel includes an operating member, a coil spring, a receiver member, and a slide member. The operating member is rotatably mounted to the reel unit. The coil spring extends and contracts in a rotary axis direction of the operating member in conjunction with rotation of the operating member. The receiver member is configured to receive urging force of the coil spring and apply drag force to the spool. The slide member is disposed between the coil spring and the receiver member in the rotary axis direction. The slide member has a friction coefficient less than a friction coefficient of the receiver member.

## Claims

### Claim 1

A drag knob for regulating drag force of a drag mechanism configured to brake rotation of a spool rotatably mounted to a reel unit of a fishing reel, the drag knob comprising:
an operating member being rotatably mounted to the reel unit;
a coil spring extending and contracting in a rotary axis direction of the operating member in conjunction with rotation of the operating member;
a receiver member being configured to receive urging force of the coil spring and apply drag force to the spool; and
a slide member being disposed between the coil spring and the receiver member in the rotary axis direction, the slide member having a friction coefficient less than a friction coefficient of the receiver member.

### Claim 2

A drag knob for regulating drag force of a drag mechanism configured to brake rotation of a spool rotatably mounted to a reel unit of a fishing reel, the drag knob comprising:
an operating member being rotatably mounted to the reel unit;
a coil spring extending and contracting in a rotary axis direction of the operating member in conjunction with rotation of the operating member;
a receiver member being configured to receive urging force of the coil spring and apply drag force to the spool; and
a slide member being disposed between the coil spring and the operating member in the rotary axis direction, the slide member having a friction coefficient less than a friction coefficient of the operating member.

### Claim 3 (depends on 1)

The drag knob according to claim 1, wherein the coil spring has an axial cross-section formed in a rectangular shape.

### Claim 4 (depends on 2)

The drag knob according to claim 2, wherein the coil spring has an axial cross-section formed in a rectangular shape

### Claim 5 (depends on 1)

The drag knob according to claim 1 , wherein the coil spring is a coiled wave spring.

### Claim 6 (depends on 2)

The drag knob according to claim 2, wherein the coil spring is a coiled wave spring.

### Claim 7 (depends on 1)

A fishing reel comprising:
a reel unit;
a spool rotatably being mounted to the reel unit; and
a drag mechanism including the drag knob according to claim 1, the drag mechanism being configured to brake rotation of the spool.