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US 5,542,164 AGranted
Method for forming a barb on a tip of a fishhook
AssigneeGamakatsu Co., Ltd.
InventorsShigekatsu Fujii, Naohiro Asada, Tomio Kubo
Life of this patent
Estimating the term…
Abstract
A method for forming a barb of a fishhook including the steps of pressing a thin flat portion of the tip and either cutting or chipping a part of the barb to form a rear face on a side opposite the tip of the hook. At least either upper or lower lateral sides of the hook tip may be cut to form flat or concave lateral cut faces with a sharp edge along a ridge at a juncture of the lateral cut faces.
Claims3
A method of producing a fishhook comprising the steps of:
- pressing an upper part of a tip portion of a fishhook body to form a thin raised portion for barb formation which arcuately projects from the upper part of the tip portion;
- cutting a part of the thin raised portion on a side opposite an end of said tip portion to form a rear face of a barb;
- and
- bending the fishhook body such that the barb faces toward an interior of a J-shaped shank portion.
1 more element
A method of producing a fishhook comprising the steps of:
- pressing one side of a tip portion of a fishhook body to form a thin raised portion for barb formation arcuately projecting from said one side of the tip portion;
- chipping a part of the thin raised portion on a side opposite an end of said tip portion by way of press working to form a rear face of a barb;
- cutting at least either upper lateral sides or lower lateral sides of the tip portion from the hook tip to the barb to form flat or concave lateral cut faces and to form a sharp edge along a ridge at a juncture of said lateral cut faces;
- and
- bending the fishhook body such that the barb faces toward an interior of a J-shaped shank portion.
2 more elements
A method of producing a fishhook comprising the steps of:
- pressing a tip portion of a fishhook body to form a thin flat portion;
- cutting at least either upper lateral sides or lower lateral sides of the tip portion to form a sharp hook tip and a barb on an upper surface of the tip portion and to form flat or concave lateral cut faces with a sharp edge along a ridge at a juncture of the lateral cut faces;
- chipping a part of the barb on a side opposite to the hook tip to form a rear face of the barb;
- and
- bending the fishhook body such that the barb faces toward an interior of a J-shaped shank portion.
2 more elements
Dependencies are inferred from the claim text.