Chuck having formed jaws
AssigneePower Tool Holders Incorporated
InventorE. Russell Carter
Life of this patent
Estimating the term…
Abstract
A chuck for use with a manual or powered driver including a nut rotatably mounted on the chuck body and in engagement with the threads of the chuck jaws. Aspects of the chuck Jaws, such as the jaw face, are manipulatively formed by selective redistribution of metal. Formation of the chuck jaws in this manner is distinguishable from jaws formed by prior art machining techniques due to the structural orientation of grain in the metal. Forming of the chuck jaws preferably occurs at low applied temperature, i.e. not exceeding 1000 degrees Fahrenheit.
Claims14
A method of making a jaw member for use with a chuck of the type utilized with a manual or powered driver having a rotatable drive shaft, said method comprising the steps of:
- (a) providing a blank of a selected material, said blank generally configured as a cylinder of a first predetermined length;
- (b) manipulatively forming by selective redistribution of material said blank into an intermediate configuration having a second predetermined length greater than said first predetermined length, said intermediate configuration having a generally cylindrical shank portion integrally extending into a tapered portion, said tapered portion having a third predetermined length and a diameter decreasing in the direction of a first end from a maximum diameter at an intermediate location on said blank adjacent said shank portion;
- and
- (c) manipulatively forming by selective redistribution of material said tapered portion of said intermediate configuration into a bite portion having a generally oblique surface defining thereon a jaw face,
- thereby producing a jaw member having a shank portion and a bite portion.
A method of making a jaw member for use with a chuck of the type utilized with a manual or powered driver having a rotatable drive shaft, said method comprising the steps of:
- (a) providing a cylindrical blank of a selected material;
- (b) manipulatively forming by selective redistribution of material a circumferential chamfer at a first end of said blank;
- (c) manipulatively forming by selective redistribution of material said blank into an intermediate configuration having a generally cylindrical shank portion integrally extending into a tapered portion, said tapered portion having a maximum diameter at an intermediate location on said blank and a minimum diameter at said first end of said blank;
- (d) manipulatively forming by selective redistribution of material said tapered portion of said intermediate configuration into a bite portion having a generally oblique surface defining thereon a jaw face, said bite portion having a cross-sectional area at axial locations therealong substantially equivalent to a cross-sectional area of said tapered portion at corresponding axial locations;
- and
- (e) manipulatively forming by selective redistribution of material an angled end face at a first end of said blank.
Dependencies are inferred from the claim text.