Rotation transmission mechanism and spinning reel for fishing having the same

Patent metadata

Field	Value
Publication number	US-2019104713-A1
Application number	US-201816115299-A
Country	US
Kind code	A1
Filing date	Aug 28, 2018
Priority date	Oct 6, 2017
Publication date	Apr 11, 2019
Grant date	—

Abstract

A rotation transmission mechanism of a spinning reel for fishing transmits a rotation of a handle to a driven gear of a reciprocating mechanism. The rotation transmission mechanism includes an intermediate gear, a shaft member, and a biasing member. The intermediate gear rotates in response to rotation of the handle, meshes with the driven gear, and transmits the rotation of the handle to the driven gear. The shaft member rotatably supports the intermediate gear. The biasing member biases the intermediate gear in an axial direction of the shaft member.

First claim

What is claimed is:

1 . A rotation transmission mechanism of a spinning reel for fishing that transmits a rotation of a handle to a driven gear of a reciprocating mechanism, the rotation transmission mechanism comprising:
an intermediate gear that rotates in response to the rotation of the handle, meshes with the driven gear, and transmits the rotation of the handle to the driven gear; a shaft member that rotatably supports the intermediate gear; and a biasing member that biases the intermediate gear in an axial direction of the shaft member.

2 . The rotation transmission mechanism according to claim 1 , wherein
the intermediate gear includes: a first intermediate gear that rotates in response to the rotation of the handle; and a second intermediate gear that is coupled to the first intermediate gear so as to be integrally rotatable therewith and meshes with the driven gear, the shaft member rotatably supports at least either the first intermediate gear or the second intermediate gear, the biasing member is disposed between the first intermediate gear and the second intermediate gear in the axial direction to bias the first intermediate gear and the second intermediate gear in a direction in which the first intermediate gear and the second intermediate gear axially separate from each other, and the first intermediate gear and the second intermediate gear are restricted from moving to separate from each other in the axial direction.

3 . The rotation transmission mechanism according to claim 2 , wherein
the first intermediate gear includes a first gear body having gear teeth on an outer peripheral surface thereof, and a through hole through which the shaft member penetrates in the axial direction, the second intermediate gear is supported rotatably by the shaft member, and includes a second gear body that has a diameter larger than an outer diameter of the through hole of the first intermediate gear and that has gear teeth on an outer peripheral surface of the second intermediate gear, and a small-diameter portion that extends from a side surface of the second gear body toward the first intermediate gear in the axial direction and that has a diameter smaller than an outer diameter of the second gear body, and the biasing member is an elastically deformable, annular elastic member that is disposed on an outer periphery of the small-diameter portion of the second intermediate gear.

4 . The rotation transmission mechanism according to claim 3 , wherein
the through hole of the first intermediate gear is capable of housing a portion of the second intermediate gear, and the small-diameter portion of the second intermediate gear partially contacts with an inner peripheral portion of the through hole to support the first intermediate gear.

5 . The rotation transmission mechanism according to claim 3 , wherein
the small-diameter portion of the second intermediate gear includes, on an outer periphery thereof, an engaging portion that engages with the first intermediate gear.

6 . The rotation transmission mechanism according to claim 2 , wherein
at least either the first intermediate gear or the second intermediate gear is a helical gear.

7 . The rotation transmission mechanism according to claim 3 , wherein
the gear teeth of the first intermediate gear have a shape different from that of the gear teeth of the second intermediate gear.

8 . The rotation transmission mechanism according to claim 1 , wherein
the biasing member is a coned-disc spring or a curved washer.

9 . A spinning reel for fishing, comprising the rotation transmission mechanism described in claim 1 .

10 . A rotation transmission mechanism of a spinning reel for fishing that transmits a rotation of a handle to a driven gear of a reciprocating mechanism, the rotation transmission mechanism comprising:
an intermediate gear that rotates in response to the rotation of the handle, meshes with the driven gear, and transmits the rotation of the handle to the driven gear; a shaft member that rotatably supports the intermediate gear; and means for biasing the intermediate gear in an axial direction of the shaft member.

11 . The rotation transmission mechanism according to claim 10 , wherein
the intermediate gear includes: a first intermediate gear that rotates in response to the rotation of the handle; and a second intermediate gear integrally rotatable with the first intermediate gear and meshes with the driven gear, the shaft member rotatably supports at least either the first intermediate gear or the second intermediate gear, the means for biasing is disposed between the first intermediate gear and the second intermediate gear in the axial direction to bias the first intermediate gear and the second intermediate gear in a direction in which the first intermediate gear and the second intermediate gear axially separate from each other, and the first intermediate gear and the second intermediate gear are restricted from moving to separate from each other in the axial direction.

12 . The rotation transmission mechanism according to claim 11 , wherein
the first intermediate gear includes a first gear body having gear teeth on an outer peripheral surface thereof, and a through hole through which the shaft member penetrates in the axial direction, the second intermediate gear is supported rotatably by the shaft member, and includes a second gear body that has a diameter larger than an outer diameter of the through hole of the first intermediate gear and that has gear teeth on an outer peripheral surface of the second intermediate gear, and a small-diameter portion that extends from a side surface of the second gear body toward the first intermediate gear in the axial direction and that has a diameter smaller than an outer diameter of the second gear body, and the means for biasing is an elastically deformable, annular elastic member that is disposed on an outer periphery of the small-diameter portion of the second intermediate gear.

13 . The rotation transmission mechanism according to claim 12 , wherein
the through hole of the first intermediate gear houses a portion of the second intermediate gear, and the small-diameter portion of the second intermediate gear partially contacts with an inner peripheral portion of the through hole to support the first intermediate gear.

14 . The rotation transmission mechanism according to claim 12 , wherein
the small-diameter portion of the second intermediate gear includes, on an outer periphery thereof, an engaging portion that engages with the first intermediate gear.

15 . The rotation transmission mechanism according to claim 11 , wherein
at least either the first intermediate gear or the second intermediate gear is a helical gear.

16 . The rotation transmission mechanism according to claim 12 , wherein
the gear teeth of the first intermediate gear have a shape different from that of the gear teeth of the second intermediate gear.

17 . The rotation transmission mechanism according to claim 10 , wherein
the means for biasing is a coned-disc spring or a curved washer.

18 . A spinning reel for fishing, comprising the rotation transmission mechanism described in claim 10 .

19 . A spinning reel for fishing, comprising:
a handle; a reciprocating mechanism including a driven gear; a rotation transmission mechanism that transmits rotation of the handle to the reciprocating mechanism, the rotation transmission mechanism including
an intermediate gear that rotates i

Assignees

• Shimano Kk

Inventors

• Saito Kei
• Takamatsu Takuji
• Ikebukuro Satoshi

Classifications

• A01K89/0114 Primary

  Reciprocating mechanisms · CPC title

• A01K89/01121

  Frame details · CPC title