Dual-bearing reel and clutch mechanism thereof

Patent metadata

Field	Value
Publication number	US-9737061-B2
Application number	US-201514612597-A
Country	US
Kind code	B2
Filing date	Feb 3, 2015
Priority date	Jun 19, 2014
Publication date	Aug 22, 2017
Grant date	Aug 22, 2017

Abstract

A clutch mechanism includes a clutch portion and a pinion gear. The pinion gear has an engaging part and a gear part. The engaging part is located on a first end as a spool-side end of the pinion gear and is capable of being engaged with the clutch portion. The gear part is meshed with the drive gear. The gear part has helical teeth enabling the pinion gear to be urged toward the spool by the drive gear. The engaging part has a bottom and a first wall. The first wall extends from the bottom toward the first end and tilts in the same direction as the helical teeth with respect to the spool shaft such that the pinion gear is urged oppositely to the spool by the clutch portion when the engaging part is engaged with the clutch portion and receives transmission of rotation in a fishing-line releasing direction from the spool.

First claim

What is claimed is:

1. A clutch mechanism for a dual-bearing reel, being capable of allowing or preventing rotation transmitted thereto from a handle through a drive gear to be or from being transmitted to a spool rotatable about a spool shaft with respect to a reel unit, the clutch mechanism comprising:
a clutch portion configured to be rotated in conjunction with the spool; and
a pinion gear having an engaging part and a gear part, and being disposed so as to be rotatable about an axis of the spool shaft and be movable in a direction of the axis of the spool shaft, the engaging part being disposed on a first end, as a spool-side end, of the pinion gear and being configured to engage with and disengage from the clutch portion, the gear part being configured so as to be disposed farther away from the spool than the engaging part is disposed, and being configured to mesh with the drive gear,
the gear part having helical teeth enabling the pinion gear to be urged toward the spool by the drive gear when the pinion gear receives transmission of rotation of the handle in a fishing-line winding direction from the drive gear, and
the engaging part having a bottom and a first wall, the first wall extending from the bottom toward the first end and tilting in the same direction as the helical teeth with respect to the spool shaft such that the pinion gear is configured to be urged oppositely to the spool by the clutch portion when the first wall of the engaging part is engaged with the clutch portion and receives transmission of rotation in a fishing-line releasing direction from the spool.

2. The clutch mechanism for a dual-bearing reel according to claim 1 , wherein
the spool shaft is coupled to the spool so as to be unitarily rotatable therewith,
the clutch portion includes a clutch pin to be disposed so as to penetrate the spool shaft along a diameter of the spool shaft, and
the engaging part has at least one engaging groove formed thereon along the diameter of the spool shaft.

3. The clutch mechanism for a dual-bearing reel according to claim 2 , further comprising
a clutch control part located between the engaging part and the gear part and having an outer diameter less than an outer diameter of the engaging part and an outer diameter of the gear part.

4. The clutch mechanism for a dual-bearing reel according to claim 2 , wherein
the pinion gear is supported at the first end thereof and a second end thereof located on an opposite side of the first end by the reel unit so as to be rotatable and axially movable.

5. A dual-bearing reel, comprising:
a reel unit;
a spool being rotatable with respect to the reel unit; and
the clutch mechanism for the dual-bearing reel recited in claim 2 .

6. The clutch mechanism for a dual-bearing reel according to claim 1 , further comprising
a clutch control part located between the engaging part and the gear part and having an outer diameter less than an outer diameter of the engaging part and an outer diameter of the gear part.

7. A dual-bearing reel, comprising:
a reel unit;
a spool being rotatable with respect to the reel unit; and
the clutch mechanism for the dual-bearing reel recited in claim 6 .

8. The clutch mechanism for a dual-bearing reel according to claim 1 , wherein
the pinion gear is supported at the first end thereof and a second end thereof located on an opposite side of the first end by the reel unit so as to be rotatable and axially movable.

9. A dual-bearing reel, comprising:
a reel unit;
a spool being rotatable with respect to the reel unit; and
the clutch mechanism for the dual-bearing reel recited in claim 8 .

10. A dual-bearing reel, comprising:
a reel unit;
a spool being rotatable with respect to the reel unit; and
the clutch mechanism for the dual-bearing reel recited in claim 1 .

11. A clutch mechanism for a dual-bearing reel, being capable of allowing or preventing rotation transmitted thereto from a handle through a drive gear to be or from being transmitted to a spool rotatable about a spool shaft with respect to a reel unit, the clutch mechanism comprising:
a clutch portion configured to be rotated in conjunction with the spool; and
a pinion gear having an engaging part and a gear part, and being disposed so as to be rotatable about an axis of the spool shaft and be movable in a direction of the axis of the spool shaft, the engaging part being disposed on a first end, as a spool-side end of the pinion gear and being configured to engage with and disengage from the clutch portion, the gear part being configured so as to be disposed farther away from the spool than the engaging part is disposed, and being configured to mesh with the drive gear,
the gear part having helical teeth enabling the pinion gear to be urged toward the spool by the drive gear when the pinion gear receives transmission of rotation of the handle in a fishing-line winding direction from the drive gear, and
the engaging part haying a bottom and a first wall, the first wall extending from the bottom toward the first end and tilting in the same direction as the helical teeth with respect to the spool shaft such that the pinion gear is configured to be urged oppositely to the spool by the clutch portion when the engaging part is engaged with the clutch portion and receives transmission of rotation in a fishing-line releasing direction from the spool,
the first wall tilting at an angle less than a helix angle of the helical teeth in a plan view.

12. The clutch mechanism for a dual-bearing reel according to claim 11 , wherein
the spool shaft is coupled to the spool so as to be unitarily rotatable therewith,
the clutch portion includes a clutch pin to be disposed so as to penetrate the spool shaft along a diameter of the spool shaft, and
the engaging part has at least one engaging groove formed thereon along the diameter of the spool shaft.

13. The clutch mechanism for a dual-bearing reel according to claim 11 , further comprising
a clutch control part located between the engaging part and the gear part and having an outer diameter less than an outer diameter of the engaging part and an outer diameter of the gear part.

14. The clutch mechanism for a dual-bearing reel according to claim 11 , wherein
the pinion gear is supported at the first end thereof and a second end thereof located on an opposite side of the first end by the reel unit so as to be rotatable and axially movable.

15. A dual-bearing reel, comprising:
a reel unit;
a spool being rotatable with respect to the reel unit; and
the clutch mechanism for the dual-bearing reel recited in claim 11 .

Assignees

• Shimano Kk

Inventors

• Ikuta Takeshi
• Niitsuma Akira
• Watarai Etsuyoshi
• Yoshida Kenji

Classifications

• A01K89/0188

  Axially engaged · CPC title

• A01K89/01902

  Gear pair · CPC title

• A01K89/006

  Hand crank features · CPC title

• A01K89/015 Primary

  with {a} rotary drum {, i.e. with a rotating spool}(A01K89/033 takes precedence) · CPC title

• A01K89/01931

  Spool or spool shaft details (spool details in reel with pick-up A01K89/0111) · CPC title