Clamping chuck for holding drilling and/or cutting tools
First Claim
1. Clamping chuck for use in securing in a drilling device or the like a drilling and/or cutting tool having a shank with a cylindrical surface, comprising at least two guide jaws for engagement with the cylindrical surface of the shank and said guide jaws being radially adjustable relative to the cylindrical surface of the shank, at least one engaging element arranged to engage within and radially inwardly of the cylindrical surface of the shank, wherein the improvement comprises means for laterally enclosing said guide jaws and said engaging element, said means having an outside surface accessible for operating said clamping chuck, said means including a first actuating member accessible at the outside surface for radially adjusting the position of said guide jaws, and a second actuating member accessible at the outside surface for separately adjusting said at least one engaging element whereby the adjustment of said at least one engaging element can be effected without adjusting said guide jaws, and said first actuating member comprises an axially extending conically shaped part having a conically shaped inner surface in engagement with said guide jaws so that axial movement of said conically shaped part effects axial and radial movement of said guide jaws.
1 Assignment
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Accused Products
Abstract
A clamping chuck for securing a tool in a drilling device can be used for transmitting rotary and/or percussion motion to the tool. Independently adjustable guide jaws and at least one engaging element are mounted in the chuck. The guide jaws can hold a tool shank in a frictional engagement while the engaging element can fit into a recess in the surface of the tool shank. With such separate adjustment, the guide jaws can be used alone or in combination with the engaging element for holding the tool shank.
19 Citations
13 Claims
- 1. Clamping chuck for use in securing in a drilling device or the like a drilling and/or cutting tool having a shank with a cylindrical surface, comprising at least two guide jaws for engagement with the cylindrical surface of the shank and said guide jaws being radially adjustable relative to the cylindrical surface of the shank, at least one engaging element arranged to engage within and radially inwardly of the cylindrical surface of the shank, wherein the improvement comprises means for laterally enclosing said guide jaws and said engaging element, said means having an outside surface accessible for operating said clamping chuck, said means including a first actuating member accessible at the outside surface for radially adjusting the position of said guide jaws, and a second actuating member accessible at the outside surface for separately adjusting said at least one engaging element whereby the adjustment of said at least one engaging element can be effected without adjusting said guide jaws, and said first actuating member comprises an axially extending conically shaped part having a conically shaped inner surface in engagement with said guide jaws so that axial movement of said conically shaped part effects axial and radial movement of said guide jaws.
- 6. Clamping chuck for use in securing in a drilling device or the like a drilling and/or cutting tool with an axially extending shank having an axially extending cylindrical surface, comprising an axially extending anvil for transmitting at least one of rotary and percussion motion, chuck means mounted on said anvil for securing the tool relative to said anvil so that the at least one of rotary and percussion motion can be transmitted to the tool, said chuck means comprising at least two guide jaws spaced angularly apart for engagement with the cylindrical surface of the shank and said guide jaws being radially adjustable relative to the cylindrical surface of the shank, at least one engaging element arranged to engage within and radially inwardly of the cylindrical surface of the shank, wherein the improvement comprises means for laterally enclosing said guide jaws and said engaging element, said means having an outside surface accessible for operating said clamping chuck, said means including a first actuating member accessible at the outisde surface for radially adjusting the position of said guide jaws, and a second actuating member for separately adjusting said at least one engaging element whereby the adjustment of said at least one engaging element can be effected without adjusting said guide jaws.
Specification