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Elastically flexible coupling body

A technology of elastic bending and connecting body, which is applied in the direction of fluid, welding equipment, dental drilling, etc. using vibration, which can solve the problems of broken connecting body and failure of working instruments.

Inactive Publication Date: 2009-04-01
DURR DENTAL GMBH & CO KG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Failure to observe these conditions can lead to breakage of the connector and consequent failure of the working device

Method used

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  • Elastically flexible coupling body
  • Elastically flexible coupling body
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Examples

Experimental program
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Embodiment Construction

[0050] An ultrasonic handpiece is indicated generally at 10 in FIG. 1 and is used to drive a tool 12 .

[0051] The tool 12 can be, for example, a lancet-shaped flat tool with which the sides of the tooth can be treated. The tool 12 is moved in the direction of the arrow 14 shown in the figure. During work with the tool 12 , a jet of working fluid 18 , which contains grinding media suspended in water, is sprayed onto the tool via a nozzle 16 .

[0052]A sonotrode 20 installed inside the handle 22 of the handpiece 10 is used to generate the vertical reciprocating movement of the tool 12 in FIG. 1 with an amplitude of several tens to several hundreds of μm. The sonotrode 20 comprises a plurality of piezoelectric plates stacked one behind the other in the axial direction and is connected to an ultrasonic vibration unit 24 at its output end located on the left in FIG. 1 . The ultrasonic vibration unit is used to concentrate the ultrasonic energy through the "funnel effect" and p...

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PUM

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Abstract

The invention relates to a coupling body (26) that can convert a linear input movement into a linear output movement transversal to the input movement. Said coupling body comprises two parallel flexional arms (28, 30) of the same length, the ends of said flexional arms being connected by means of transversal connection arms (32, 34). The connection arms (28, 30) carry driving bodies (40, 42) which represent load bodies arranged at the same distance from the neutral lines of the connection arms, in the same direction.

Description

technical field [0001] The invention relates to an elastically bendable connecting body for high-frequency operating instruments according to the preamble of claim 1 . Background technique [0002] In the claims and the description high frequency is to be understood as frequencies from a few kHz to 40 kHz and above. For common dental applications, high frequencies are especially in the range of 15kHz to 25kHz. [0003] A high-frequency working instrument for dentistry is described in DE 42 38 384 A1. The high-frequency working instrument includes an ultrasonic driving unit, and the ultrasonic driving unit includes an elongated serial piezoelectric stack. This stack is mounted in the handle of the power tool. The connecting body is designed as a ring oscillator with four vibration maxima evenly distributed in the circumferential direction. One of the vibration maxima is connected to the ultrasonic drive unit, and a vibration maxima offset by 90° relative to this vibration...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61C1/07B06B3/00
CPCA61C1/07B23K20/106A61C1/00A61C1/02B06B3/00
Inventor U·基尔斯特根M·汤姆斯
Owner DURR DENTAL GMBH & CO KG
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