# US 2023/0055291 A1 · Braking force control device and fishing reel provided with the same

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- Number: US 2023/0055291 A1
- Document ID: US20230055291A1
- Status: Published application
- Kind: A1
- Application number: 17/884,312
- Filed: 2022-08-09
- Published: 2023-02-23
- Earliest claimed: 2021-08-20
- Assignees: Globeride, Inc.
- Applicants: GLOBERIDE, Inc.
- Inventors: Hiromu YASUDA
- Web page: https://patentgrep.com/patent/US20230055291A1

## CPC

- A01K 89/033: with {a} rotary drum {, i.e. for reels with a rotating spool (antibacklash devices A01K89/0155)}
- A01K 89/01555: {using magnets}
- A01K 89/056: {Radially engaged}
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS

## Abstract

A braking force control device according to one embodiment of the present disclosure is a braking force control device provided with a spool pivotally supported by a reel body, the spool on which a fishing line may be wound, a rotational speed detection unit that detects a rotational speed of the spool, a braking unit that generates a braking force to the spool, and a braking force control unit that controls the braking force of the braking unit, in which the braking force control unit adjusts the braking force according to elapsed time from when casting starts or detection information of the rotational speed detection unit.

## Claims

### Claim 1

A braking force control device comprising:
a spool pivotally supported by a reel body, the spool on which a fishing line may be wound;
a rotational speed detection unit that detects a rotational speed of the spool;
a braking unit that generates a braking force to the spool; and
a braking force control unit that controls the braking force of the braking unit,
wherein the braking force control unit adjusts the braking force according to elapsed time from when casting starts or detection information of the rotational speed detection unit.

### Claim 2 (depends on 1)

The braking force control device according to claim 1, wherein the braking force control unit controls the braking force on a basis of a brake set value defined for each time during first time of casting, and controls the braking force on a basis of a brake set value defined on a basis of the rotational speed of the spool during second time of the casting.

### Claim 3 (depends on 2)

The braking force control device according to claim 2, wherein the brake set value of the first time of the casting and the brake set value of the second time of the casting may be individually set and changed.

### Claim 4 (depends on 1)

The braking force control device according to claim 1, wherein the braking unit generates the braking force that increases in proportion to an angular speed of the spool, and the braking force control unit controls a proportional coefficient in a changeable manner.

### Claim 5 (depends on 1)

The braking force control device according to claim 1, wherein the braking unit is provided with a conductive member provided on the spool, a magnetic force generation unit provided on the reel body, and a magnetic field adjustment unit that changes a magnetic field state of the magnetic force generation unit.

### Claim 6 (depends on 5)

The braking force control device according to claim 5, wherein the conductive member is an induct rotor, the magnetic force generation unit is a permanent magnet, and the magnetic field adjustment unit is a motor and a decelerator.

### Claim 7 (depends on 5)

The braking force control device according to claim 5, wherein the braking force control unit controls such that intensity of a magnetic field acting on the conductive member is proportional to the rotational speed of the spool.

### Claim 8 (depends on 1)

The braking force control device according to claim 1, wherein the braking unit is provided with a brake plate provided on the spool and magneto-rheological fluid in contact with the brake plate, and the braking force control unit is provided with a magnetic field adjustment unit that adjusts a magnetic field acting on the magneto-rheological fluid.

### Claim 9 (depends on 1)

A fishing reel comprising:
the braking force control device according to claim 1.