Support pad for a deep hole drill
AssigneeSandvik Aktiebolag
InventorsStefan Lindblom, Mattias Vanberg
Life of this patent
Estimating the term…
Abstract
An element which defines a support pad and/or a guide bar adapted to be mounted in a seat of a cutter head of a deep hole drill comprises a body which defines a longitudinal direction and a cross-direction. The body includes an inner mounting side and an opposing outer side. The outer side includes a contact surface which is adapted to engage a wall of a hole being drilled. The outer side also includes a countersink extending across the outer side in a direction transversely of the longitudinal direction. An edge of the contact surface facing toward a center of the body forms an angle with the longitudinal direction in the range of 55°±10°.
Claims10
An element adapted to be mounted in a seat of a cutter head of a deep hole drill for defining at least one of a support pad and a guide bar, the element comprising a body defining a longitudinal direction and cross-direction, the body including an inner-mounting side and an opposing outer side, the outer side including:
- a contact surface adapted to engage a wall of a hole being drilled, and
- a countersink extending across the outer side in a direction transversely of the longitudinal direction, wherein an edge of the contact surface facing toward a center of the body forms an angle with the longitudinal direction in the range of 55°±10°.
A deep hole drill comprising a body having a cutting head defining a longitudinal axis and including a generally cylindrical outer periphery;
- a support pad and a guide bar mounted in the outer periphery;
- each of the support pad and the guide bar comprising a body defining a longitudinal direction oriented substantially parallel to the axis, and a cross direction oriented perpendicular to the longitudinal direction;
- the body including an inner side engaging the outer periphery, and an outer side facing radially away from the outer periphery, the outer side including:
- a contact surface adapted to engage a wall of a hole being drilled, and
- a countersink extending across the outer side in a direction transversely of the longitudinal direction, wherein an edge of the contact surface facing toward a center of the body forms an angle with the longitudinal direction in the range of 55°±10°.
Dependencies are inferred from the claim text.