Safety switch for monitoring a closed position of two parts moveable relative to one another

A technology of safety switch and closed position, which is applied in the direction of electronic switches, electrical components, pulse technology, etc., can solve problems such as no consideration, and achieve the effects of reducing inventory costs, simplifying shell design, and reducing manufacturing costs

Active Publication Date: 2007-01-24
PILZ (COMPANY)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This known safety switch has the disadvantage that a dedicated switching variable must be used for each approach direction, i.e. the approach direction from the actuator to the sensor
However, the issues described in this paper are not considered

Method used

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  • Safety switch for monitoring a closed position of two parts moveable relative to one another
  • Safety switch for monitoring a closed position of two parts moveable relative to one another
  • Safety switch for monitoring a closed position of two parts moveable relative to one another

Examples

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Embodiment Construction

[0043] exist figure 1 In , the automatic device comprising the novel safety switch is indicated as a whole by the reference numeral 10 . In this case, a safety switch is used to monitor the closed position of the guard door 12 used to secure the device. By way of example, the device is shown here as a robot 14 . The field of use of the novel safety switch is however not limited to this specific example. In general, the novel safety switch can be used to safely monitor an arbitrary (closed) position of two parts that can move relative to each other. This also includes, for example, the monitoring of the position of a piston relative to the cylinder or another piston, in which case the term "closed position" means that the piston is located in the region of other objects.

[0044] The safety switch includes an actuator 16 and a sensor 18 . The actuator 16 is fixed to the protective door 12 . The sensor 18 is fixed to the wall 20 (or to the frame of the protective door 12 no...

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PUM

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Abstract

A safety switch, especially for monitoring guard doors on automatic installations, has an actuator (16) and a sensor (18). The actuator (16) includes an actuator antenna (56) and the sensor (18) includes a sensor antenna (46), the actuator (16) and the sensor (18) being transformer coupled to each other when the guard door is in the closed position, Especially like a transceiver. According to one aspect of the invention, the sensor antenna (46) has magnetic orientation properties such that the actuator (16) in at least two mutually perpendicular spatial directions (64, 66, 68) ) Transformer coupling.

Description

technical field [0001] The invention relates to a safety switch for monitoring the closed position of two parts which can be moved relative to each other, in particular for monitoring a safety door of an automatic installation, the switch comprising an actuator and a sensor, the actuator and a sensor Each is fixed to one of the parts, the actuator has an actuator antenna and the sensor has a sensor antenna, via which the actuator and sensor are coupled by a transformer, in particular like a transceiver, when the part is in the closed position. Background technique [0002] Safety switches of this type are sold by the company Eucher GmbH & Co. KG (70771 Leinfelden-Echterdingen, Germany) under the product name CES. [0003] Insurance considerations regarding protection against accidents play an increasingly important role in the planning and design of automatic installations. Various protective measures are employed to make such devices safe, in particular emergency cut-off s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H03K17/95
CPCH03K17/9525H03K17/9502H03K17/9505H03K2217/94089H03K2217/958
Inventor J·弗来那S·巴尔斯D·布拉施克
Owner PILZ (COMPANY)
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