# US 9,750,234 B2 · Engaging pin and reciprocating mechanism for fishing reel having engaging pin

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- Number: US 9,750,234 B2
- Document ID: US9750234B2
- Status: Granted
- Kind: B2
- Application number: 14/991,198
- Filed: 2016-01-08
- Published: 2016-08-04
- Granted: 2017-09-05
- Earliest claimed: 2015-01-29
- Assignees: Shimano Inc.
- Applicants: Shimano Inc.
- Inventors: Kunio Takechi
- Web page: https://patentgrep.com/patent/US9750234B2

## CPC

- A01K 89/0183: {Drive mechanism details}
- A01K 89/01143: {Reversely threaded screws}
- A01K 89/01916: {the drive mechanism reciprocating the guide}
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS

## Abstract

An engagement pin of a fishing reel for engaging a worm shaft of the fishing reel, the worm shaft having intersecting spiral grooves, the engagement pin includes a shaft portion and an engagement portion. The shaft portion has an end. The engagement portion is integrally and turnably disposed on the end of the shaft portion and is configured to engage the intersecting spiral grooves. At least the engagement portion is formed from synthetic resin.

## Claims

### Claim 1

An engagement pin for engaging a worm shaft of a fishing reel, the worm shaft having intersecting spiral grooves, the engagement pin comprising:
a shaft portion having an end; and
a synthetic engagement portion integrally disposed on the end of the shaft portion and configured to engage the intersecting spiral grooves,
at least the engagement portion being formed from synthetic resin.

### Claim 2 (depends on 1)

The engagement pin of the fishing reel recited in claim 1, wherein
the shaft portion and the engagement portion are integrally formed from synthetic resin.

### Claim 3 (depends on 1)

The engagement pin of the fishing reel recited in claim 1, further comprising:
a constricted portion having a diameter smaller than a diameter of the shaft portion, and being disposed between the shaft portion and the engagement portion.

### Claim 4 (depends on 1)

The engagement pin of the fishing reel recited in claim 1, wherein
the engagement portion thins in a direction away from the end of the shaft portion, and comprises at a distal end, an engagement recess configured to engage a bottom portion of the intersecting spiral grooves and being recessed in an arcuate shape.

### Claim 5 (depends on 1)

The engagement pin of the fishing reel recited in claim 1, wherein
a cross sectional area of the shaft portion that is perpendicular to an axial direction of the shaft portion is non-circular.

### Claim 6 (depends on 5)

The engagement pin of the fishing reel recited in claim 5, wherein
the cross sectional area of the shaft portion comprises at least one flat portion.

### Claim 7 (depends on 1)

The engagement pin of the fishing reel recited in claim 1, wherein
the shaft portion comprises a first flat surface disposed along an axial direction of the shaft portion.

### Claim 8 (depends on 7)

The engagement pin of the fishing reel recited in claim 7, wherein
the shaft portion further comprises a second flat surface that is parallel to the first fiat surface.

### Claim 9

A reciprocating mechanism of a fishing reel, comprising:
a worm shaft having intersecting spiral grooves;
a rotary drive mechanism configured to rotationally driving the worm shaft; and
an engagement pin comprising a shaft portion having an end, and an engagement portion integrally disposed on the end of the shaft portion and configured to engage the intersecting spiral grooves, the engagement pin being configured to be reciprocated along an axial direction of the worm shaft, at least the engagement portion being formed from synthetic resin.