EP0362761A3 - Electromechanical, intermittent operation device, particularly for photographic cutters - Google Patents

Electromechanical, intermittent operation device, particularly for photographic cutters Download PDF

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Publication number
EP0362761A3
EP0362761A3 EP19890118221 EP89118221A EP0362761A3 EP 0362761 A3 EP0362761 A3 EP 0362761A3 EP 19890118221 EP19890118221 EP 19890118221 EP 89118221 A EP89118221 A EP 89118221A EP 0362761 A3 EP0362761 A3 EP 0362761A3
Authority
EP
European Patent Office
Prior art keywords
cutters
electromechanical
photographic
operation device
intermittent operation
Prior art date
Legal status (The legal status 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 status listed.)
Withdrawn
Application number
EP19890118221
Other languages
German (de)
French (fr)
Other versions
EP0362761A2 (en
Inventor
Roberto Signoretto
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Systel International SpA
Original Assignee
Systel International SpA
Photo Engineering International SRL
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 Systel International SpA, Photo Engineering International SRL filed Critical Systel International SpA
Publication of EP0362761A2 publication Critical patent/EP0362761A2/en
Publication of EP0362761A3 publication Critical patent/EP0362761A3/en
Withdrawn legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03D—APPARATUS FOR PROCESSING EXPOSED PHOTOGRAPHIC MATERIALS; ACCESSORIES THEREFOR
    • G03D15/00—Apparatus for treating processed material
    • G03D15/04—Cutting; Splicing
    • G03D15/043—Cutting or splicing of filmstrips
    • G03D15/046—Automatic cutting

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Control Of Cutting Processes (AREA)

Abstract

An electromechanical intermittent operation device, particularly for photographic cutters, characterised by comprising:
- a direct current motor (17), the shaft (16) of which is directly coupled to a cam (15) for controlling the member (6) which is to be intermittently operated,
- a member (6) to be intermittently operated, provided with elastic means (11) which, in the absence of other external forces, maintain it in its waiting condition,
- means (22) for cyclically feeding the electric motor with an overcurrent for a time sufficient to cause it to pass beyond the half way stage in the operating cycle, and then interrupting the electrical feed,
- means (22) for short-circuiting the rotor winding on interruption of the electrical feed, and
- means (22) for feeding the rotor winding with a countercurrent pulse of such a duration as to halt the motor (17) without oscillation exactly in its waiting position.
EP19890118221 1988-10-05 1989-10-02 Electromechanical, intermittent operation device, particularly for photographic cutters Withdrawn EP0362761A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
IT8413888 1988-10-05
IT8884138A IT1226000B (en) 1988-10-05 1988-10-05 INTERMITTENT ELECTROMECHANICAL DRIVE DEVICE, PARTICULARLY FOR PHOTO CUTTERS

Publications (2)

Publication Number Publication Date
EP0362761A2 EP0362761A2 (en) 1990-04-11
EP0362761A3 true EP0362761A3 (en) 1991-11-21

Family

ID=11324623

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19890118221 Withdrawn EP0362761A3 (en) 1988-10-05 1989-10-02 Electromechanical, intermittent operation device, particularly for photographic cutters

Country Status (2)

Country Link
EP (1) EP0362761A3 (en)
IT (1) IT1226000B (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE19506292A1 (en) * 1995-02-23 1996-08-29 Kiene Christel Photographic image stamping-out device

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652521A1 (en) * 1976-11-18 1978-05-24 Kaltenbach & Voigt Dynamic braking of series motor by supply reversal - uses short circuiting diode connected across armature terminals to oppose normal current flow
US4354147A (en) * 1980-08-15 1982-10-12 Klaussner Hans Jurgen Drive and control arrangement for a mechanical eccentric press
DE3304649A1 (en) * 1982-02-17 1983-08-25 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa CUTTER
DE8703368U1 (en) * 1986-03-12 1987-04-30 Bielomatik Leuze Gmbh + Co, 7442 Neuffen, De

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2652521A1 (en) * 1976-11-18 1978-05-24 Kaltenbach & Voigt Dynamic braking of series motor by supply reversal - uses short circuiting diode connected across armature terminals to oppose normal current flow
US4354147A (en) * 1980-08-15 1982-10-12 Klaussner Hans Jurgen Drive and control arrangement for a mechanical eccentric press
DE3304649A1 (en) * 1982-02-17 1983-08-25 Fuji Photo Film Co., Ltd., Minami Ashigara, Kanagawa CUTTER
DE8703368U1 (en) * 1986-03-12 1987-04-30 Bielomatik Leuze Gmbh + Co, 7442 Neuffen, De

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
ELECTRONICS INTERNATIONAL, vol. 50, no. 5, March 1977, page 105, NY, US; B. POSTLEWAIT: "Inductive kick gates SCR motor crowbar" *

Also Published As

Publication number Publication date
IT8884138A0 (en) 1988-10-05
EP0362761A2 (en) 1990-04-11
IT1226000B (en) 1990-12-10

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