Device for detecting and signaling a change in the state of a push button

摘要

A device for detecting and signalling a change of state of a push-button, for example of emergency stop type. The device is in a form of an attachment that can be removed from the push-button and includes: an electrical energy generator housed in a casing of the device and configured to cooperate with a control head of the push-button to convert mechanical energy into electrical energy; and a wireless transmitter to send a message to a remote receiver, the wireless transmitter being housed in the casing and electrically connected to the electrical energy generator.

主权项

1. A device for detecting and signaling a change of state of an operational push-button, the operational push-button including a body and a control head mounted on the body and actuable in translation along a principal axis between a plurality of positions so as to impart different states to the push-button to control an electrical circuit, wherein the device is in a form of an add-on that can be retrofitted to the operational push-button and comprises:
a casing having an outer wall through which an opening is formed, the body of the operational push-button configured to pass through the opening when the device is retrofitted to the push button; an electrical energy generator housed in the casing between the outer wall and the opening such that the electrical energy generator cooperates with the control head to convert mechanical energy into electrical energy to detect a change of state of the operational push-button; and a wireless transmitter to send a message to a remote receiver, the wireless transmitter being housed in the casing between the outer wall and the opening, and electrically connected to the electrical energy generator such that the wireless transmitter signals said change of state of the operational push button.