Tool for manufacturing ballpoint pens
AssigneeSociete BIC
InventorsDavid Schmitz, Anne Schmitz
Life of this patent
Estimating the term…
Abstract
A tool and method of manufacturing a tool for making ballpoint pen tips, called rough tips, in their seat zone and preferably in their cone zone. The tool is mounted in fast-rotating precision spindles and the position of the tool may be adjusted to adjust the dimensions of the tip to be formed by the tool. The equipment is configured in a single-piece unit. A seat zone element for making the seat zone and preferably a cone element for making the cone of the tip may be formed on a base component.
Claims9
A tool for manufacturing a seat area and a cone of ballpoint pen tips, said tool comprising:
- a base;
- a seat area element, provided on said base, for manufacturing the seat area of a ballpoint pen tip;
- and
- a cone element, provided on said base, for manufacturing the cone of a ballpoint pen tip,
- wherein at least said seat area element is formed on said base,
- wherein said tool is rotatable about a longitudinal axis to manufacture the seat area and the cone of the ballpoint pen tips,
- wherein said seat area element has a seat area profile with an associated face surface at least substantially parallel to the longitudinal axis,
- wherein said cone element has a cone profile with an associated face surface at least substantially parallel to the longitudinal axis, and
- wherein the face surfaces of the seat area profile and the cone profile form an angle greater than 90°.
A monolithic tool for manufacturing, by chip removal, a seat area and a cone of ballpoint pen tips, said seat area comprising:
- a pilot bore;
- a base surface having an annular shape;
- and
- a cylindrical bore which opens on a front surface,
- the tool comprising a seat area element for manufacturing the seat area of a ballpoint pen tip;
- and
- a cone element for manufacturing the cone of a ballpoint pen tip;
- wherein said tool is rotatable about a longitudinal axis to manufacture the seat area and the cone of the ballpoint pen tips, wherein said seat area element has a seat area profile with an associated face surface at least substantially parallel to the longitudinal axis,
- wherein said cone element has a cone profile with an associated face surface at least substantially parallel to the longitudinal axis, and
- wherein the face surfaces of the seat area profile and the cone profile form an angle greater than 90°.
Dependencies are inferred from the claim text.