Dual bearing reel handle shaft structure

• US 7,699,257 B2
• Filed: 01/02/2008
• Issued: 04/20/2010
• Est. Priority Date: 01/23/2007
• Status: Active Grant

• Current Assignee: Shimano Inc
• Original Assignee: Shimano Inc
• Inventors: Kawasaki, Ken'ichi, Takechi, Kunio
• Primary Examiner(s): Langdon; Evan H
• Application Number:
  US11/968,409
• Publication Number:
  US 20080173745A1
• Time in Patent Office: 839 Days
• Field of Search: 242/245, 242/321, 242/319, 242/257
• US Class Current: 242/319
• CPC Class Codes: A01K 89/015 with a rotary drum , i.e. with a rotating spoolA01K89/033 takes precedence
• CPC Class Codes: A01K 89/01903 with yieldable drive coupling, e.g. friction or fluid clutch
• CPC Class Codes: A01K 89/01928 with line or water shields

Abstract

A handle shaft support structure rotatably supports a handle shaft on a reel unit, and includes a boss portion, a roller type one-way clutch, and a pair of seal members. The boss portion is a cylindrical member that is detachably mounted to the reel unit. The one-way clutch includes an outer ring that is non-rotatably coupled to the inner peripheral surface of the boss portion, an inner ring that is arranged on the outer periphery of the handle shaft and is integrally rotatably coupled to the handle shaft, and rolling elements that are arranged between the outer and inner rings. The one-way clutch supports the handle shaft rotatably only in one direction. The pair of seal members are members that are arranged on the both sides of the one-way clutch to seal the one-way clutch.

Claims

1. A dual bearing reel handle shaft support structure that rotatably supports a handle shaft on a reel unit of a dual bearing reel comprising:

a rotational support member detachably mounted to the reel unit;

a roller type one-way clutch including

an outer ring non-rotatably coupled to the support member,

an inner ring coupled to and that integrally rotates with the handle shaft, and rolling elements arranged between the outer and inner rings, the one-way clutch supporting rotatable movement of the handle shaft in only one direction;

a pair of annular seal members arranged on an outer peripheral surface of the one-way clutch to simultaneously seal the one-way clutch and an interior region of at least the rotational support member; and

a reinforcing member abutting and being directly affixed to an outer peripheral surface of the seal members.

2. The dual bearing reel handle shaft support structure set forth in claim 1, wherein the axial length of the inner ring protrudes beyond the axial length of the outer ring in both directions, and wherein the seal members seal the clearance between an inner peripheral surface of the support member and the outer peripheral surface of the inner ring.

3. The dual bearing reel handle shaft support structure set forth in claim 2, wherein the inner ring is coupled to and integrally rotates with the handle shaft through a drag washer that is coupled to and integrally rotates with the handle shaft.

4. The dual bearing reel handle shaft support structure set forth in claim 1, wherein the support member includes a flange portion detachably mounted to the reel unit, and a cylindrical portion that extends outwardly from the flange portion in the axial direction, the one-way clutch supported on an inner peripheral surface of the cylindrical portion.

5. The dual bearing reel handle shaft support structure set forth in claim 2, wherein each seal member includes a seal portion with

a cylindrical mount section mounted to the inner peripheral surface of the support member,

a disk section that extends from the mount section toward the inner ring, and

a tapered lip section formed around the end of the disk section and in contact with the inner ring, the lip section is inclined from the end of the disk section in a direction away from the one-way clutch.

6. The dual bearing reel handle shaft support structure set forth in claim 1, wherein the rotational support member is a cylindrical rotational support member.

7. The dual bearing reel handle shaft support structure set forth in claim 1, wherein the seal members are arranged to enclose the one-way clutch on both sides.

8. The dual bearing reel handle shaft support structure set forth in claim 1, wherein the outer ring is coupled to the inner peripheral surface of the support member, and the inner ring is coupled to the outer periphery of the handle shaft.

9. A dual bearing reel, comprising:

a reel unit,

a handle shaft;

a detachable support member rotatably mounted to the reel unit;

a roller type one-way clutch including

an outer ring,

an inner ring, and

rolling elements between the outer and inner rings; and

a pair of annular seal members disposed on the outer peripheral surface of the one-way clutch to simultaneously seal the one-way clutch and an interior region of at least the rotational support member; and

a reinforcing member abutting and being directly affixed to an outer peripheral surface of the seal members.

10. The dual bearing reel set forth in claim 9, wherein the inner ring has a greater axial length than the outer ring.

11. The dual bearing reel set forth in claim 9, wherein the inner ring includes an engagement portion on its axial end such that the inner ring is coupled to and integrally rotates with the handle shaft through a drag washer that is coupled to and integrally rotates with the handle shaft.

12. The dual bearing reel claim 9, wherein the support member includes a detachable flange portion and a cylindrical portion, the flange portion extends radially outward from the cylindrical portion, the one-way clutch is mounted on the cylindrical portion.

13. The dual bearing reel set forth in claim 9, wherein each seal member includes

a seal portion with

a first section mounted onto the support member,

a second section extending radially from the first section and contiguous with the outer ring, and

a third section smaller than and positioned at an angle relative to the first and second sections, the third section in contact with the inner ring.

14. The dual bearing reel set forth in claim 9, wherein the support member is a cylindrical rotational support member.

15. The dual bearing reel set forth in claim 9, wherein the outer ring is non-rotatably coupled to the support member, and the inner ring is coupled to and integrally rotates with the handle shaft.