# US 10,477,850 B2 · Bearing housing structure and dual-bearing reel

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- Number: US 10,477,850 B2
- Document ID: US10477850B2
- Status: Granted
- Kind: B2
- Application number: 16/211,651
- Filed: 2018-12-06
- Published: 2019-07-04
- Granted: 2019-11-19
- Earliest claimed: 2017-12-28
- Assignees: Shimano Inc.
- Applicants: Shimano Inc.
- Inventors: Akira Niitsuma; Satoshi Fujii
- Web page: https://patentgrep.com/patent/US10477850B2

## CPC

- A01K 89/0193: {with bearing features}
- A01K 89/01928: {with line or water shields}
- A01K 89/006: {Hand crank features}
- B65H 2701/355: Fishlines
- A01K: ANIMAL HUSBANDRY; AVICULTURE; APICULTURE; PISCICULTURE; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- B65H: HANDLING THIN OR FILAMENTARY MATERIAL, e.g. SHEETS, WEBS, CABLES

## Abstract

A bearing housing structure includes a bearing, a lid part and a supporting part. The bearing rotatably supports spool shaft. The lid part is opposite an end surface of the spool shaft and extends in a direction that intersects the spool shaft. The supporting part houses and supports the bearing and holds the lid part to oppose the end surface of the spool shaft. The supporting part includes a bearing hole and a lid hole, the bearing hole having the bearing inserted thereinto and removed therefrom, and the lid hole has a portion of the lid part inserted thereinto and removed therefrom in a direction intersecting the spool shaft and a direction along the lid part, and the lid part closes an opening of the bearing hole such that the lid part is held by the lid hole of the shaft supporting portion.

## Claims

### Claim 1

A bearing housing structure, comprising:
a bearing rotatably supporting a spool shaft;
a lid part disposed at an end surface of the spool shaft and extending in a direction that intersects the spool shaft; and
a supporting part housing and supporting the bearing and holding the lid part at the end surface of the spool shaft,
the supporting part including a bearing hole and a lid hole, the bearing hole configured to have the bearing inserted thereinto and removed therefrom in a direction along the spool shaft, and the lid hole configured to have at least a portion of the lid part inserted thereinto and removed therefrom in the direction that intersects the spool shaft and a direction along which the lid part extends, and
the lid part is configured to close an opening of the bearing hole such that the lid part is held by the lid hole of the shaft supporting portion.

### Claim 2 (depends on 1)

The bearing housing structure according to claim 1, wherein
the lid part has an arcuate portion with a diameter that is greater than or equal to an outer diameter of the bearing, and the lid part is configured to be held by the supporting part in a position in which the arcuate portion is fitted into the bearing hole.

### Claim 3 (depends on 2)

The bearing housing structure according to claim 2, wherein
the lid part further includes
a plate-like member having a fitting hole disposed in a central region thereof, the fitting hole having a diameter greater than or equal to an outer diameter of the arcuate portion, and
a contact member having the diameter of the arcuate portion and fitted into the fitting hole.

### Claim 4 (depends on 2)

The bearing housing structure according to claim 2, wherein
the lid part further includes
a plate-like member and the arcuate portion, and
the arcuate portion includes
an annular member formed from an elastic body, the annular member having a central hole and two protrusions formed thereon, the two protrusions sandwiching the plate-like member from sides of a main surface of the plate-like member, and
a contact member fitted into the hole of the annular member.

### Claim 5 (depends on 1)

A dual bearing reel, comprising
a reel body attached to a fishing rod;
a spool rotatably supported by the reel body and having an outer perimeter configured to have a fishing line wound thereon;
a spool shaft supporting the spool at a center of rotation of the spool; and
the bearing housing structure according to claim 1.