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 vibratorInfo
- 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
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.
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) |
-
1976
- 1976-01-13 IT IT4761976A patent/IT1052929B/en active
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