Patent ID: 11879974
Assignee: SICK AG
Field: Measurement (Instruments)
Classification: CPC F  G  B | IPC B  G

Claim 4:
5. A sensor system comprising first optoelectronic distance sensors for monitoring a hazard zone at a movable machine part having at least one protected field,
wherein the first optoelectronic distance sensors are arranged in annular form in a first ring at the movable machine part,
wherein at least one of a tool and a workpiece is arranged at the movable machine part, wherein the first optoelectronic distance sensors are rotatably arranged at the first ring,
wherein the optical axes of the first optoelectronic distance sensors have an acute angle with respect to a center axis of the movable machine part so that a frustoconical protected field is formed,
wherein second optoelectronic distance sensors are arranged in annular form in a second ring at the movable machine part
wherein the optical axes of the second optoelectronic distance sensors of the second ring extending at an acute angle from a tangent to the annular form,
and additional optical axes of the first optoelectronic distance sensors aligned to extend radially outward from the first ring parallel with a plane of the first ring.