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US 7,095,008 B2Granted
Protective device working in a contact free manner
AssigneeSick AG
InventorsChristian Klingelhoefer, Manfred Haberer, Ana Maestro, Georg Plasberg
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AssigneeSick AG
InventorsChristian Klingelhoefer, Manfred Haberer, Ana Maestro, Georg Plasberg
Estimating the term…
A protective device working in a contact-free manner for the securing of a danger zone of a machine or the like comprises an optical evaluation field and a control and evaluation device which allows, in addition to a securing operation, in which a warning or machine stop signal is generated as a result of a respective intrusion into the evaluation field, a cyclical operation in which a release signal is generated as a result of at least one respective intrusion into the evaluation field in order to release a respective machine cycle, with one and the same evaluation field being provided for securing operation and for cyclical operation and with the control and evaluation device being designed such that only a part of the evaluation field is monitored accordingly both for securing operation and cyclical operation.
A protective device working in a contact-free manner for the securing of a danger zone of a machine, comprising an optical evaluation field and a control and evaluation device which allows, in addition to a securing operation, in which a warning or machine stop signal is produced as a result of a respective intrusion into the evaluation field, a cyclical operation in which a release signal is produced as a result of at least one respective intrusion into the evaluation field in order to release a respective machine cycle, with one and the same evaluation field being provided for the securing operation and for the cyclical operation and with the control and evaluation device being designed such that only a part of the evaluation field is monitored accordingly both for the securing operation and the cyclical operation.
A contact-free protective device for securing a danger zone of a machine comprising an optical evaluation field and a control and evaluation device operatively coupled to the evaluation field for generating a warning or machine stop signal in response to a first intrusion of an object into the evaluation field and for generating a release signal in response to a second intrusion of an object into the evaluation field for initiating an operative machine cycle, the evaluation field and the control and evaluation device being configured so that the warning or machine stop signal and the release signal can both be generated from only a predetermined portion of the evaluation field in response to the first and second intrusions, respectively.
Dependencies are inferred from the claim text.