Rod body for fishing rod and fishing rod provided therewith

Patent metadata

Field	Value
Publication number	US-9635842-B2
Application number	US-201314102549-A
Country	US
Kind code	B2
Filing date	Dec 11, 2013
Priority date	Dec 25, 2012
Publication date	May 2, 2017
Grant date	May 2, 2017

Abstract

A main body layer 78 is configured by a layer 75 formed, in a cylindrical shape, from a main part 76 and a complementary part 77 . The main part 76 is formed by a main prepreg 70 . In a small-diameter part, the main prepreg 70 is wound over the entire circumference in a circumferential direction with both ends of the main prepreg 70 in a widthwise direction overlapping each other, and in a large-diameter part, the main prepreg 70 is wound so that a part of the entire circumference in the circumferential direction remains behind as a winding-shortage part, with both ends of the main prepreg 70 in the widthwise direction separated from each other in the circumferential direction. The complementary part 77 is formed to complement the winding-shortage part by a sub-prepreg 71 having a predetermined shape corresponding to the winding-shortage part.

First claim

What is claimed is:

1. A rod body for a fishing rod, comprising:
a main body layer formed, in a cylindrical shape having a circumferential direction, from a first main prepreg and a first sub-prepreg, wherein
the main body layer includes a small-diameter part positioned at a front side of the rod body, a large-diameter part positioned at a rear side of the rod body, and a steeply-expanded diameter part positioned between the small-diameter part and the large-diameter part,
both an inner and an outer diameter of the steeply-expanded diameter part are expanded toward the rear side by a steeper incline than an incline of the small-diameter part and an incline of the large-diameter part,
the main body layer comprises a predetermined-length region including at least the steeply-expanded diameter part, the predetermined-length region being configured by a first layer formed, in a cylindrical shape, from a first main part and a first complementary part,
the first main part is formed by the first main prepreg having a length corresponding to the predetermined-length region, a single sheet of the first main prepreg being wound around the rod body such that the first main prepreg at the small-diameter part has a width required to be wholly wound around a circumference of the rod body at the small-diameter part by one round to create an overlapping part made by both circumferential ends of the first main prepreg at the small-diameter part; and that the first main prepreg at the large-diameter part has a width required to be partly wound around a circumference of the rod body at the large-diameter part to create a winding-shortage part where both of the circumferential ends of the first main prepreg at the large-diameter part do not overlap with each other, and
the first complementary part is formed to complement the winding-shortage part by the first sub-prepreg having a predetermined shape corresponding to the winding-shortage part such that two overlapping parts are created by both circumferential ends of the first sub-prepreg and both of the circumferential ends of the first main prepreg at the large-diameter part,
wherein the first sub-prepreg is an isosceles triangle having an apex which is directed toward the front side of the rod body.

2. The rod body for a fishing rod according to claim 1 , wherein
the first complementary part is formed so that the first sub-prepreg is positioned outside the first main prepreg.

3. The rod body for a fishing rod according to claim 1 , wherein the predetermined-length region is further configured by a second layer laminated on the first layer.

4. The rod body for a fishing rod according to claim 3 , wherein the predetermined-length region is further configured by a third layer laminated on the second layer, the first layer displaced with the second and third layers by 120° in the circumferential direction, the second layer displaced with the first and third layers by 120° in the circumferential direction, the third layer displaced with the first and second layers by 120° in the circumferential direction.

5. The rod body for a fishing rod according to claim 3 , wherein the first layer is displaced with the second layer by 180° in the circumferential direction.

6. The rod body for a fishing rod according to claim 1 , wherein
each of the first main prepreg and the first sub-prepreg comprises a vertical sheet having reinforced fibers running along a direction of a center line of the rod body and a horizontal sheet having reinforced fibers running along the circumferential direction of the rod body, the vertical sheet being laminated on the horizontal sheet.

7. The rod body according to claim 1 , wherein the first main prepreg is a rectangle having a length that extends in a direction of a center line of the rod body.

8. A fishing rod provided with the rod body for the fishing rod according to claim 1 .

Assignees

• Shimano Kk

Inventors

• Iwata Soshi
• Kaminou Yoshiyuki
• Suganuma Nobuhiro

Classifications

• A01K87/08

  Handgrips · CPC title

• A01K87/00 Primary

  Fishing rods · CPC title