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Clamping device and dental handpiece including same

a technology of handpiece and clamping device, which is applied in the direction of chucks, dental surgery, manufacturing tools, etc., can solve the problems of increasing the size and weight of the handpiece, and requiring relatively awkward manipulation, and achieves the effect of convenient operation and little for

Inactive Publication Date: 2006-01-12
COHEN YECHIEL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0004] An object of the present invention is to provide a novel clamping device, and particularly a novel dental handpiece, for manually clamping and releasing a dental tool or other member in a manner which is convenient to perform and which requires relatively little force.
[0016] As will be described more particularly below, such a clamping device, particularly when used in a dental handpiece, permits the operator to change dental tools in a quick, convenient, and relatively effortless manner.

Problems solved by technology

The clamping devices now commonly used in such dental handpieces are generally of a relatively bulky construction which increases the size and weight of the handpiece, and / or require relatively awkward manipulations in order to remove and insert the dental tool with respect to the handpiece.

Method used

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  • Clamping device and dental handpiece including same
  • Clamping device and dental handpiece including same
  • Clamping device and dental handpiece including same

Examples

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Embodiment Construction

[0029] As indicated above, the clamping device of the present invention is particularly useful in dental handpieces for releasable clamping a dental tool in a manner which permits the dental tool to be readily removed and replaced by another one. The drawings, therefore, illustrate a dental handpiece including a clamping device constructed in accordance with the present invention.

[0030] The dental handpiece illustrated in FIG. 1 includes a housing, generally designated 2, having a hand-gripping section 3 at one end, and a tool-holding section 4 at the opposite end for holding a dental tool 5, such as a burr or drill. Housing section 4 further carries a push button 6 which is depressable in order to release dental tool 5 and to permit attachment of another dental tool in a quick and convenient manner. Housing section 4 further includes a water spray nozzle 7 for discharging a water spray onto the site being worked by the dental tool 5.

[0031] The illustrated dental handpiece, as to ...

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PUM

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Abstract

A clamping device for clamping a member to a housing includes a sleeve unit carried by the housing and having an open end formed with a tapered inner surface; and a chuck unit receivable within the open end of the sleeve unit, the chuck unit having an open end which is radially contractible for receiving and clamping the member. The chuck unit is movable axially in one direction to a clamping position, or in the opposite direction to a releasing position. The sleeve unit and chuck unit include interengaging elements such that rotation of the sleeve unit in opposite directions relative to the chuck unit moves the chuck unit to its clamping and releasing positions, respectively. A spring normally urges the sleeve unit to its clamping position. A manual operator rotates the sleeve unit in the opposite direction to move the chuck unit to its releasing position.

Description

FIELD AND BACKGROUND OF THE INVENTION [0001] The present invention relates to clamping devices for clamping a member to a housing. The invention is particularly useful in dental handpieces for releasably clamping dental tools, and is therefore described below with respect to this application. [0002] One form of dental handpiece to which the invention is especially suitable is the air turbine handpiece for driving a dental tool, such as a burr or drill, at extremely high speeds, e.g., in the order of 400,000 rpm. The clamping devices now commonly used in such dental handpieces are generally of a relatively bulky construction which increases the size and weight of the handpiece, and / or require relatively awkward manipulations in order to remove and insert the dental tool with respect to the handpiece. [0003] My prior U.S. Pat. Nos. 5,549,474 and 5,810,588 (corresponding to Israel Patents 107202 filed Oct. 6, 1993) disclose clamping devices particularly useful for dental handpieces hav...

Claims

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Application Information

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IPC IPC(8): A61C1/14B23B31/20
CPCA61C1/141B23B2260/136B23B31/201A61C1/144G01N3/08
Inventor COHEN, YECHIEL
Owner COHEN YECHIEL
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