Ultrasonic vibration tool, fixing device, and heating device

Details Ultrasonic vibration tool, fixing device, and heating device Ultrasonic vibration tool, fixing device, and heating device

2005-09-20

2005-09-20

Beatty, Robert (Department: 2852)

Electrophotography

Image formation

Fixing

C219S216000, C310S312000, C310S323190

Reexamination Certificate

active

06947697

ABSTRACT:
An ultrasonic vibration tool is made of a block of substantially rectangular parallelepiped form, and has its one end face formed as an output end face, and has its other end face opposite the output end face formed as an input end face. An ultrasonic oscillator is connected to the input end face for transmitting a longitudinal standing wave to the output end face. Peripheries of the input and output end faces of the block constitute mass portions. Between the mass portions are formed slits at a pitch less than a half of an oscillation wavelength, whereby a plurality of elastic portions are obtained. The mass portion on the input end face side has a protrusion having a height equal to or less than a quarter of the oscillation wavelength, thereby obtaining a mass distribution. Hence, a uniform amplitude distribution is achieved in the output end face.

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Collected Papers presented at the lecture meeting of the Acoustical Society of Japan (Oct., 1987); 1-2-12 Modal Vibration Control of Ultrasosnic Tools with the Use of Wave-trapped Horns by Kazunari Adachi and Sadayuki Ueha (Tokyo Institute of Technology) with partial English translation.
Collected Papers presented at the lecture meeting of the Acoustical Society of Japan (Mar., 1988); 1-6-10 Modal Vibration Control of Ultrasonic Tools with the Use of Wave-trapped Horns II by Kazunari Adachi and Sadayuki Ueha(Tokyo Institute of Technology) with partial English Translation.

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