Rod and method of manufacturing same
AssigneeShimano Inc.
InventorTakayuki Tukihara
Life of this patent
Estimating the term…
Abstract
A rod includes an inner layer and an outer layer. The inner layer is formed by winding on a mandrel a prepreg sheet including reinforcing fibers oriented axially of the rod and having a width extending over an entire length of the rod. The outer layer is formed by winding a prepreg tape including reinforcing fibers oriented longitudinally thereof. The prepreg tape is wound a plurality of times over the prepreg sheet from a tip end region to a butt end region of the rod. Adjacent winds of the prepreg tape partly overlap each other in the tip end region, and are spaced from each other axially of the rod in the butt end region.
Claims4
A fishing rod comprising:
- an inner layer formed of a prepreg sheet including reinforcing fibers oriented in one direction and having a width extending over an entire length of the rod;
- and
- an outer layer formed of a prepreg tape including reinforcing fibers oriented in a direction different from said reinforcing fibers oriented in one direction and having a width less than the length of the rod, said prepreg tape being continuously wound over the entire length of the rod;
- wherein said prepreg tape is wound with a variable winding distance so as to have adjacent winds partly overlapping each other in a tip end region of the rod to conceal and minimize possibility of damage done to the inner layer, and axially spaced from each other in a butt end region of the rod to avoid an increase in rigidity and loss of flexibility.
A fishing rod comprising:
- an inner layer formed of a prepreg sheet including reinforcing fibers oriented axially of said rod, and having a width extending over an entire length of the rod, wherein said inner layer is formed of said prepreg sheet wound in one to three plies on a mandrel having a forward end about 0.5 to 1 mm in diameter;
- and
- an outer layer formed of a prepreg tape including reinforcing fibers oriented circumferentially of said rod, and having a width less than the length of the rod, said prepreg tape being continuously wound on said inner layer over the entire length of the rod;
- and
- wherein said prepreg tape is wound with a variable winding distance so as to have adjacent winds partly overlapping each other in a tip end region of the rod to conceal and minimize possibility of damage done to the inner layer, and axially spaced from each other in a butt end region of the rod to avoid an increase in rigidity and loss of flexibility.
Dependencies are inferred from the claim text.