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US 8,701,537 B2Granted
Cutting tool with detachably connected inserts
AssigneesBoehlerit GmbH & Co. KG., Maschinenfabrik Liezen Und Giesserei Ges.M.B.H.
InventorsWalter Baernthaler, Armin Schlemmer, Johann Winter
Life of this patent
Estimating the term…
Abstract
A cutting tool that includes a base body including at least one deformable clamping element and at least one bit seat in which an insert is positionable, and at least one control element positioned in a recess of the base body. The at least one control element is positionable to bias the at least one deformable clamping element against the insert to hold the insert in the at least one bit seat.
Claims22
A rotating saw blade cutting tool, comprising:
- a base body including at least one deformable clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is positionable;
- at least one control element comprising a rotatable body;
- and
- said rotatable body being positioned in a recess of the base body,
- wherein the at least one control element is positionable to move the at least one deformable clamping element from the open position to the fixing position against the insert to hold the insert in the at least one bit seat in the fixing position, and
- the rotatable body is structured and arranged in the recess so as to have three discrete contact areas comprising two contact areas that are provided between a wall of the recess and the rotatable body and a third contact area that is provided between the rotatable body and an inwardly or outwardly curved cam surface of the at least one deformable clamping element such that the three discrete contact areas are each located at different locations with respect to a radial line extending from a rotational axis of the rotatable body,
- wherein the three contact areas are arranged in a common plane,
- wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and
- wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.
6 more elements
A rotating saw blade cutting tool, comprising:
- a base body including a deformable clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is held;
- a control element comprising a rotatable body;
- and
- said rotatable body being positioned in a recess of the base body,
- wherein the deflectable clamping element comprises a nose that is selectively moveable from the open position into contact with the insert in the fixing position via rotation of the rotatable body,
- the deflectable clamping element comprises an arm connected to the nose and the base body, and tapering toward a center of the base body, and
- the rotatable body is structured and arranged in the recess so as to have three discrete contact areas comprising two contact areas that are provided between a wall of the recess and the rotatable body and a third contact area that is provided between the rotatable body and an inwardly or outwardly curved cam surface of the at least one deflectable clamping element such that the three discrete contact areas are each located at different locations with respect to a radial line extending from a rotational axis of the rotatable body,
- wherein the three contact areas are arranged in a common plane,
- wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and
- wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.
7 more elements
A rotating saw blade cutting tool, comprising:
- a base body including at least one deflectable clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is positionable;
- at least one control element comprising a rotatable body;
- and
- said rotatable body being positioned in a recess of the base body,
- wherein the at least one control element is positionable to bias the at least one deflectable clamping element from the open position to the fixing position against the insert to hold the insert in the at least one bit seat in the fixing position,
- the rotatable body is structured and arranged in the recess so as to have three discrete contact areas comprising two contact areas that are provided between a wall of the recess and the rotatable body and a third contact area that is provided between the rotatable body and an inwardly or outwardly curved cam surface of the at least one deflectable clamping element such that the three discrete contact areas are respectively separated from one another when viewed parallel to a rotation axis of the rotatable body, and
- wherein the three discrete contact areas are arranged in a common plane,
- wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and
- wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.
6 more elements
A rotating saw blade cutting tool, comprising:
- a base body including at least one deflectable clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is positionable;
- at least one control element comprising a rotatable body;
- and
- said rotatable body being positioned in a recess of the base body,
- wherein the at least one control element is positionable to bias the at least one deflectable clamping element from the open position to the fixing position against the insert to hold the insert in the at least one bit seat in the fixing position, and
- the rotatable body is structured and arranged in the recess so as to have three contact areas with the recess such that the three contact areas are each located at different locations with respect to a radial line extending from a rotational axis of the rotatable body,
- wherein the three contact areas are arranged in a common plane and one of the contact areas is provided between an inwardly or outwardly curved cam surface of the at least one deflectable clamping element and the rotatable body,
- wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and
- wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.
6 more elements
A rotating saw blade cutting tool, comprising:
- a base body including a clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is held;
- a control element comprising a rotatable body;
- and
- said rotatable body being positioned in a recess of the base body,
- wherein the clamping element comprises a nose that is selectively moveable from the open position into contact with the insert in the fixing position via rotation of the rotatable body,
- the clamping element comprises an arm connected to the nose and the base body, and tapering toward a center of the base body, and
- the rotatable body is structured and arranged in the recess so as to have three contact areas with portions of the recess such that the three contact areas are each located at different locations with respect to a radial line extending from a rotational axis of the rotatable body,
- wherein the three contact areas are arranged in a common plane and one of the contact areas is provided between an inwardly or outwardly curved cam surface of the at least one clamping element and the rotatable body,
- wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and
- wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.
7 more elements
A rotating saw blade, comprising:
- a base body including at least one integrally formed clamping element movable from an open position to a fixing position and at least one bit seat in which an insert is positionable;
- at least one control element comprising a rotatable body;
- and
- said rotatable body being positioned in a recess of the base body,
- wherein the at least one control element is positionable to move the at least one clamping element from the open position to the fixing position against the insert to hold the insert in the at least one bit seat in the fixing position, and
- the rotatable body is structured and arranged in the recess so as to have three contact areas with portions of the recess such that the three contact areas are each located at different locations with respect to a radial line extending from a rotational axis of the rotatable body, and
- wherein the three contact areas are located at outermost regions of the control element,
- wherein the three contact areas are arranged in a common plane and one of the contact areas is provided between an inwardly or outwardly curved cam surface of the at least one clamping element and the rotatable body,
- wherein, in both the open position and the fixing position, a distance between a center axis of the rotatable body and a first contactable portion of the inwardly or outwardly curved cam surface is different than a distance between the center axis of the rotatable body and a second contactable portion of the inwardly or outwardly curved cam surface, said first and second contactable portions being circumferentially spaced from each other, and
- wherein the three contact areas between the rotatable body and the recess occur in both the open position and the fixing position.
7 more elements
Dependencies are inferred from the claim text.