IT1052929B - Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator - Google Patents

Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator

Info

Publication number
IT1052929B
IT1052929B IT4761976A IT4761976A IT1052929B IT 1052929 B IT1052929 B IT 1052929B IT 4761976 A IT4761976 A IT 4761976A IT 4761976 A IT4761976 A IT 4761976A IT 1052929 B IT1052929 B IT 1052929B
Authority
IT
Italy
Prior art keywords
sewing machine
piezoelectric crystal
horse shoe
shaped cutting
thread cutter
Prior art date
Application number
IT4761976A
Other languages
Italian (it)
Original Assignee
Cavitron Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Cavitron Corp filed Critical Cavitron Corp
Priority to IT4761976A priority Critical patent/IT1052929B/en
Application granted granted Critical
Publication of IT1052929B publication Critical patent/IT1052929B/en

Links

Landscapes

  • General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)

Abstract

The ultrasonic thread cutter may be deployed on a sewing machine and has a flexible horse shoe-shaped cutting head. The opposed internal zones incorporate the cutting faces, and the head is coupled to an ultrasonic vibrator. The cut is effected by relative vibratory motion of the cutting faces with the thread locating between the faces. The cutting faces are pref of reciprocal geometric and slightly spaced from each other and make contact under vibration. The contact under vibration sets up secondary vibration of the legs of the head. The vibrator pref. comprises a resonant support housing an electrically animated tubular piezoelectric crystal.
IT4761976A 1976-01-13 1976-01-13 Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator IT1052929B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT4761976A IT1052929B (en) 1976-01-13 1976-01-13 Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT4761976A IT1052929B (en) 1976-01-13 1976-01-13 Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator

Publications (1)

Publication Number Publication Date
IT1052929B true IT1052929B (en) 1981-08-31

Family

ID=11261469

Family Applications (1)

Application Number Title Priority Date Filing Date
IT4761976A IT1052929B (en) 1976-01-13 1976-01-13 Ultrasonic thread cutter for sewing machine - has flexible horse shoe-shaped cutting head coupled to piezoelectric crystal vibrator

Country Status (1)

Country Link
IT (1) IT1052929B (en)

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