FI792200A - Saekerhetskoppling foer med tillhjaelp av ljus saekrad farlig arbetsmaskin - Google Patents

Saekerhetskoppling foer med tillhjaelp av ljus saekrad farlig arbetsmaskin

Info

Publication number
FI792200A
FI792200A FI792200A FI792200A FI792200A FI 792200 A FI792200 A FI 792200A FI 792200 A FI792200 A FI 792200A FI 792200 A FI792200 A FI 792200A FI 792200 A FI792200 A FI 792200A
Authority
FI
Finland
Prior art keywords
saekrad
farlig
arbetsmaskin
ljus
foer
Prior art date
Application number
FI792200A
Other languages
English (en)
Other versions
FI74339C (fi
FI74339B (fi
Inventor
Gerhard Dieterle
Original Assignee
Sick Optik Elektronik Erwin
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 Sick Optik Elektronik Erwin filed Critical Sick Optik Elektronik Erwin
Publication of FI792200A publication Critical patent/FI792200A/fi
Application granted granted Critical
Publication of FI74339B publication Critical patent/FI74339B/fi
Publication of FI74339C publication Critical patent/FI74339C/fi

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H47/00—Circuit arrangements not adapted to a particular application of the relay and designed to obtain desired operating characteristics or to provide energising current
    • H01H47/002—Monitoring or fail-safe circuits
    • H01H47/004—Monitoring or fail-safe circuits using plural redundant serial connected relay operated contacts in controlled circuit
    • H01H47/005—Safety control circuits therefor, e.g. chain of relays mutually monitoring each other
FI792200A 1978-07-14 1979-07-12 Saekringskoppling foer en genom ljus foersaekrad farlig arbetsmaskin. FI74339C (fi)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2831089 1978-07-14
DE2831089A DE2831089C2 (de) 1978-07-14 1978-07-14 Schaltungsanordnung zur Überwachung der Relaiskontakte im Überwachungskreis einer Arbeitsmaschine

Publications (3)

Publication Number Publication Date
FI792200A true FI792200A (fi) 1980-01-15
FI74339B FI74339B (fi) 1987-09-30
FI74339C FI74339C (fi) 1988-01-11

Family

ID=6044433

Family Applications (1)

Application Number Title Priority Date Filing Date
FI792200A FI74339C (fi) 1978-07-14 1979-07-12 Saekringskoppling foer en genom ljus foersaekrad farlig arbetsmaskin.

Country Status (4)

Country Link
US (1) US4291359A (fi)
EP (1) EP0007420B1 (fi)
DE (1) DE2831089C2 (fi)
FI (1) FI74339C (fi)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4599675A (en) * 1984-07-11 1986-07-08 P. J. Hare Limited Self monitoring solid state switching system
US4676421A (en) * 1986-03-31 1987-06-30 Penn Engineering & Manufacturing Corp. Press having a programmable ram with sensing means
DE3619723A1 (de) * 1986-06-12 1987-12-17 Kloeckner Moeller Elektrizit Kontaktbehaftete zusatzsteuerung fuer sicherheitsstromkreise
US4758918A (en) * 1986-12-12 1988-07-19 Syndergeneral Corporation Advanced latching circuit
DE3703859A1 (de) * 1987-02-07 1988-08-18 Elobau Elektrobauelemente Gmbh Beruehrungsloswirkende elektrische positionsschalteinrichtung
GB8716108D0 (en) * 1987-07-08 1987-08-12 Truro School Safety system for machinery
JPH0270287A (ja) * 1988-09-05 1990-03-09 Hitachi Ltd 負荷駆動回路
JP2669905B2 (ja) * 1989-09-01 1997-10-29 ファナック株式会社 リレーの溶着検出方法
JP2610542B2 (ja) * 1990-07-16 1997-05-14 日本信号株式会社 作業の安全システム構成方法
DE4242792C2 (de) * 1992-12-17 1997-02-06 Sick Optik Elektronik Erwin Sicherheitsschalteranordnung
US5396222A (en) * 1993-03-25 1995-03-07 United States Surgical Corporation Ergonomic machine actuator
EP0763842B1 (en) * 1995-03-31 2003-10-01 The Nippon Signal Co., Ltd. Solenoid relay driving circuit
US20020135238A1 (en) * 2001-03-22 2002-09-26 Stephen Cole Finger operated control panel

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2241556A (en) * 1938-06-20 1941-05-13 Hydraulic Dev Corp Inc Photoelectrically controlled press
US2862154A (en) * 1956-02-09 1958-11-25 United Shoe Machinery Corp Apparatus control systems
DE1106404B (de) * 1957-01-04 1961-05-10 Licentia Gmbh Anordnung zur selbsttaetigen Steuerung von Umkehrwalzwerken
GB1218412A (en) * 1968-04-24 1971-01-06 Radiovisor Parent Ltd Improvements in or relating to guards for presses and like machinery
DE1924461C3 (de) * 1969-05-13 1978-03-09 Erwin Sick Gmbh Optik-Elektronik, 7808 Waldkirch Schaltungsanordnung zur Überwachung des Kontaktspiels von Relaiskontakten
FR2128090B1 (fi) * 1971-03-04 1973-05-11 Weydert Francois
SE360920B (fi) * 1972-12-21 1973-10-08 Safer Marketing Ab
US3866004A (en) * 1973-07-05 1975-02-11 Jacobs Co F L Safety control device with obstruction feeler and switch assembly
US3858095A (en) * 1973-08-28 1974-12-31 Riedl Ohg Adolf Protective circuit arrangement for band cutter machines
US3950755A (en) * 1975-03-11 1976-04-13 Rotex, Inc. Radio control for press
US4072222A (en) * 1976-12-22 1978-02-07 Coon George M Single stroke control system

Also Published As

Publication number Publication date
FI74339C (fi) 1988-01-11
US4291359A (en) 1981-09-22
DE2831089A1 (de) 1980-01-24
EP0007420A1 (en) 1980-02-06
FI74339B (fi) 1987-09-30
DE2831089C2 (de) 1984-02-16
EP0007420B1 (en) 1984-02-22

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Legal Events

Date Code Title Description
MM Patent lapsed

Owner name: ERWIN SICK GESELLSCHAFT MIT BESCHRAENKTER