Spigot joint fishing rod

Patent metadata

Field	Value
Publication number	US-11576358-B2
Application number	US-201916981580-A
Country	US
Kind code	B2
Filing date	Mar 29, 2019
Priority date	Mar 30, 2018
Publication date	Feb 14, 2023
Grant date	Feb 14, 2023

Abstract

A fishing rod according to one embodiment of the invention includes a small-diameter hollow rod body extending in a central axis direction, a large-diameter hollow rod body extending in the central axis direction, and a spigot ferrule inserted in the small-diameter rod body from its rear end and into the large-diameter rod body from its front end to connect the small-diameter rod body and the large-diameter rod body. In the fishing rod, a first inclined surface that extends from an rear end of the small-diameter rod body at an angle of 0.1° to 10.0° with respect to the central axis direction is formed on an inner peripheral surface of the small-diameter rod body.

First claim

What is claimed is:

1. A fishing rod comprising:
a small-diameter hollow rod body extending in a central axis direction;
a large-diameter hollow rod body extending in the central axis direction; and
a spigot ferrule inserted in a rear end of the small-diameter rod body and into a front end of the large-diameter rod body to connect the small-diameter rod body and the large-diameter rod body,
wherein, on an inner peripheral surface of the small-diameter rod body, a first inclined surface that extends from the rear end of the small-diameter rod body at an angle of 0.1° to 3.0° with respect to the central axis direction is formed,
wherein the first inclined surface is spaced apart from the spigot ferrule.

2. The fishing rod of claim 1 , wherein
the first inclined surface extends from the rear end of the small-diameter rod body to a first position in the central axis direction, and
the spigot ferrule is inserted further than the first position in the central axis direction.

3. The fishing rod of claim 1 , wherein a length L 1 from the rear end of the small-diameter rod body to a first position in the central axis direction satisfies L 1 ≤10T 1 , where T 1 is a thickness of the small-diameter rod body.

4. The fishing rod of claim 1 , wherein, on an inner peripheral surface of the large-diameter rod body, a second inclined surface that extends from a front end of the large-diameter rod body at an angle of 1.0° to 3.0° with respect to the central axis direction is formed.

5. The fishing rod of claim 4 , wherein
the second inclined surface extends from the front end of the large-diameter rod body to a second position in the central axis direction, and
the spigot ferrule is inserted further than the second position in the central axis direction.

6. The fishing rod of claim 4 , wherein a length L 2 from the front end of the large-diameter rod body to a second position in the central axis direction satisfies L 2 ≤10T 2 , where T 2 is a thickness of the large-diameter rod body.

7. The fishing rod of claim 1 , wherein on an inner peripheral surface of the large-diameter rod body, a second inclined surface that extends from a front end of the large-diameter rod body at an angle of 1.0° to 2.0° with respect to the central axis direction is formed.

8. A fishing rod comprising:
a small-diameter hollow rod body extending in a central axis direction;
a large-diameter hollow rod body extending in the central axis direction; and
a spigot ferrule inserted in a rear end of the small-diameter rod body and into a front end of the large-diameter rod body to connect the small-diameter rod body and the large-diameter rod body,
wherein, on an inner peripheral surface of the small-diameter rod body, a first inclined surface that extends from the rear end of the small-diameter rod body at an angle of 0.1° to 2.0° with respect to the central axis direction is formed, wherein the first inclined surface is spaced apart from the spigot ferrule.

9. The fishing rod of claim 8 , wherein
the first inclined surface extends from the rear end of the small-diameter rod body to a first position in the central axis direction, and
the spigot ferrule is inserted further than the first position in the central axis direction.

10. The fishing rod of claim 8 , wherein a length L 1 from the rear end of the small-diameter rod body to a first position in the central axis direction satisfies L 1 ≤10T 1 , where T 1 is a thickness of the small-diameter rod body.

11. The fishing rod of claim 8 , wherein, on an inner peripheral surface of the large-diameter rod body, a second inclined surface that extends from the front end of the large-diameter rod body at an angle of 1.0° to 3.0° with respect to the central axis direction is formed.

12. The fishing rod of claim 11 , wherein
the second inclined surface extends from the front end of the large-diameter rod body to a second position in the central axis direction, and
the spigot ferrule is inserted further than the second position in the central axis direction.

13. The fishing rod of claim 11 , wherein a length L 2 from the front end of the large-diameter rod body to a second position in the central axis direction satisfies L 2 ≤10T 2 , where T 2 is a thickness of the large-diameter rod body.

14. The fishing rod of claim 8 , wherein on an inner peripheral surface of the large-diameter rod body, a second inclined surface that extends from the front end of the large-diameter rod body at an angle of 1.0° to 2.0° with respect to the central axis direction is formed.

Assignees

• Globeride Inc

Inventors

• Tsukamoto Yasuhiro
• Kameda Kenichi
• Saito Atsushi

Classifications

• A01K87/02 Primary

  Connecting devices for parts of the rods · CPC title

• A01K87/00

  Fishing rods · CPC title

• F16B7/02

  with conical parts · CPC title