Personal protective system tool communication adapter

Patent metadata

Field	Value
Publication number	US-11090192-B2
Application number	US-201815966105-A
Country	US
Kind code	B2
Filing date	Apr 30, 2018
Priority date	Sep 15, 2014
Publication date	Aug 17, 2021
Grant date	Aug 17, 2021

Abstract

A tool communication adapter system is provided. One exemplary system described herein includes a tool communication adapter having an adapter body including first and second mechanical attachment ends, a first electrical connector proximate the first mechanical attachment end and a second electrical connector proximate the second mechanical attachment end, a first supply channel having an opening extending through the body between the first and second mechanical attachment ends, and including a first supply channel connector at the first attachment end and a second supply channel connector at the second mechanical attachment end, and a control unit in communication with the first and second electrical connectors. The control unit is configured to provide a filter command signal to a protective filter in response to a signal received at the first electrical connector. An exemplary tool communication adapter thus allows communication between a tool and personal protective equipment.

First claim

What is claimed is:

1. A system comprising:
a welding tool comprising a user input configured to generate a tool activation signal;
a tool power controller configured to provide power to the tool in response to the user input;
a tool connector for connecting the welding tool to the tool power controller such that the tool power controller provides power to the tool in response to activation of the user input;
welding headgear including a body and a shield positioned on the body, the shield having a wide viewing area configured to be positioned in front of a user's eyes during normal use, wherein the shield is configured to protect the user's eyes and face before the tool is activated;
a protective filter movably mounted to the welding headgear configured to be worn by the user, wherein the protective filter is mounted to an attachment location on the headgear and physically moves in relation to the headgear between an open position away from the user's eyes and a closed position to cover the shield and user's eyes in response to a closed filter command signal, and wherein the protective filter moves back to an open position in response to an open command signal, wherein the protective filter rotates at the attachment location by an actuator, wherein the attachment location is disposed on a side region of the welding headgear body; and
a control unit in communication with the tool connector;
wherein the control unit is configured to provide the closed filter command signal to the protective filter in response to the tool activation signal,
wherein the protective filter includes at least a first sensor located to detect a position of the protective filter and wherein at least one of the protective filter and the welding headgear includes a second sensor to detect whether the welding headgear is positioned on at least one of a user's head and over a user's eyes.

2. The system of claim 1 , wherein the protective filter generates a closed return signal when moved to the closed position.

3. The system of claim 1 , wherein the tool power controller is configured to supply power to the tool when the protective filter generates a closed signal.

4. The system of claim 1 , wherein the protective filter generates an open return signal when moved to the open position.

5. The system of claim 1 , wherein the user input further comprises a tool deactivation signal, and the control unit provides the open command signal to the protective filter in response to the tool deactivation signal.

6. The system of claim 1 , wherein the control unit comprises a microcontroller configured to detect a tool activation signal.

7. The system of claim 1 , wherein the first sensor is located to detect an open position or a closed position of the protective filter.

8. The system of claim 1 , wherein the first sensor is located proximate the protective filter to detect an open position or a closed position of the protective filter.

9. The system of claim 1 , wherein the first sensor is associated with the actuator capable of moving the protective filter between a closed position and an open position to detect a position of the actuator corresponding to an open position or a closed position of the protective filter.

10. The system of claim 1 , wherein the first sensor includes at least one of an inductive switch, a capacitive switch, a reflective switch, a photointerrupter, and a microswitch.

11. A system comprising:
a welding tool comprising a user input configured to generate a tool activation signal;
a tool power controller configured to provide power to the welding tool in response to the user input;
a tool communication adapter attachable between the welding tool and the tool power controller such that the tool power controller provides power to the tool in response to activation of the user input, and comprising an adapter body having first and second mechanical attachment ends and first and second electrical connectors proximate the first and second mechanical attachment ends;
welding headgear including a body and a shield positioned on the body, the shield having a wide viewing area configured to be positioned in front of a user's eyes during normal use, wherein the shield is configured to protect the user's eyes and face before the tool is activated;
a protective filter movably mounted to the welding headgear configured to be worn by the user, wherein the protective filter is mounted to an attachment location on the headgear and physically moves in relation to the headgear between an open position away from the user's eyes and a closed position to cover the shield and user's eyes in response to a closed filter command signal, and wherein the protective filter moves back to an open position in response to an open command signal, wherein the protective filter rotates at the attachment location by an actuator, wherein the attachment location is disposed on a side region of the welding headgear body; and
a control unit in communication with the first and second electrical connectors and configured to selectively electrically connect the first and second electrical connectors,
wherein the first mechanical attachment end provides for direct mechanical attachment to a tool and the second mechanical attachment end provides for direct mechanical attachment to the tool power controller,
wherein the protective filter includes at least a first sensor located to detect a position of the protective filter and wherein at least one of the protective filter and the welding headgear includes a second sensor to detect whether the welding headgear is positioned on at least one of a user's head and over a user's eyes.

12. The system of claim 11 , wherein the control unit is configured to provide the closed filter command signal to the protective filter in response to the tool activation signal.

13. The system of claim 11 , wherein the control unit is configured to selectively electrically connect the first and second electrical connectors such that the tool power controller detects the tool activation signal to provide power to the tool.

14. The system of claim 11 , wherein the control unit is configured to selectively electrically connect the first and second electrical connectors such that at least one of electrical power and control information is provided from the power controller to the tool or the tool communication adapter.

15. The system of claim 11 , wherein the control unit is positioned within the adapter body, joined to the adapter body, or provided in a separate housing connected to the adapter body by one or more wires.

16. The system of claim 1 , wherein the closed command signal provides a unique identifier code.

Assignees

• 3M Innovative Properties Co

Inventors

• Sernfält Mats U

Classifications

• A42B3/30

  Mounting radio sets or communication systems · CPC title

• F16P3/00

  Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body (F16P5/00 takes precedence) · CPC title

• A61F9/029

  Additional functions or features, e.g. protection for other parts of the face such as ears, nose or mouth; Screen wipers or cleaning devices · CPC title

• A61F9/061

  with movable shutters, e.g. filter discs; Actuating means therefor · CPC title

• A61F9/06 Primary

  Masks, shields or hoods for welders · CPC title