Mat monitor module

• US 5,636,477 A
• Filed: 04/04/1996
• Issued: 06/10/1997
• Est. Priority Date: 04/04/1996
• Status: Expired due to Term

• Current Assignee: Stanley Works Limited (Stanley Black & Decker, Inc.)
• Original Assignee: Stanley Works Limited (Stanley Black & Decker, Inc.)
• Inventors: Hulse, Jon J., Gemmell, Stephen L.
• Primary Examiner(s): KANNAN, PHILIP
• Application Number:
  US08/628,575
• Time in Patent Office: 432 Days
• Field of Search: 49/264, 49/13, 49/14, 49/25, 49/26, 49/28
• US Class Current: 49/264
• CPC Class Codes: E05F 15/00 Power-operated mechanisms for wings motor-operated accessories in locks for completing closing or initiating opening of a wing E05B17/00
• CPC Class Codes: E05F 15/42 Detection using safety edges
• CPC Class Codes: E05F 15/73 responsive to movement or presence of persons or objects
• CPC Class Codes: E05F 15/75 responsive to the weight or other physical contact of a person or object
• CPC Class Codes: E05F 2015/483 for detection during opening
• CPC Class Codes: E05F 2015/487 Fault detection of safety edges
• CPC Class Codes: E05Y 2400/53 Wing impact prevention or reduction
• CPC Class Codes: E05Y 2400/822 Light emitters, e.g. light emitting diodes [LED]
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

A mat monitor for an automatic swing door system is mountable in-line with an approach mat and a safety mat and the controller for the automatic door system. The monitor emits a visible light to indicate that a mat is properly operating without requiring that the door cycle through an opening/closing sequence. In one embodiment, a green light is illuminated to indicate that the approach mat is properly functioning and a red light is illuminated to indicate that a safety mat is properly functioning. The mat monitor is preferably mounted at the underside of the header adjacent to the controller.

Claims

1. A monitor module for an automatic door system comprising an activate unit generating an activate input and a safety unit for generating a safety input and a control unit responsive to said activate and safety inputs for controlling a door operator comprising:

first input means for electrically communicating with said activate input;

second input means for electrically communicating with said safety input;

first output means for communicating with an activate terminal of said control unit;

second output means for communicating with a safety terminal of said control unit;

circuit means communicating with said first and second input means and said first and second output means for generating conditioned signals to said control unit and comprising indicator means for indicating whether the approach and safety units are properly operating; and

mounting means for mounting said circuit means in fixed relation to said control unit.

2. The monitor module of claim 1 wherein said indicator means comprises a selectively illuminatable light source.

3. The monitor module of claim 1 wherein said indicator means comprises a bi-color LED.

4. The monitor module of claim 3 wherein said LED illuminates one light source color indicative of proper operation of the activate unit and a different light source color indicative of proper operation of the safety unit.

5. The monitor module of claim 3 wherein said bi-color LED has a green and a red light source.

6. The monitor module of claim 1 wherein said mounting means further comprises an adhesive strip.

7. The monitor module of claim 1 further comprising a circuit board, said circuit means being mounted to said circuit board, and said mounting means being attached to said circuit board.

8. The monitor module of claim 7 wherein said circuit board has first and second sides and said circuit means further comprises electronic components mounted to said first side and an LED extending from said second side.

9. The monitor module of claim 1 wherein said circuit means further comprises isolator means for electrically isolating output signals of said circuit means from said control unit.

20. The monitor module of claim 1 wherein said circuitry further comprises electronic components and said circuit board has a first side and a second side, said components being mounted to said first side, and said first and second emitter means extending outwardly from said second side.

10. An automatic door system comprising:

entranceway means comprising a swing door;

activate means for generating an activate signal indicative of a person in the vicinity of the entrance side of the door;

safety means for generating a safety signal indicative of a person in the vicinity of the egress side of the door;

monitor means responsive to said activate and safety signals for generating a first visual signal indicative of the transmission of said activate signal and a second visual signal indicative of the transmission of said safety signal and for generating an output activate signal and an output safety signal;

control means responsive to said output activate signal and said output safety signal for generating operational signals; and

operator means responsive to said operational signals for controlling the operation of said door.

11. The automatic door system of claim 10 wherein said first visual signal is a green light and said second visual signal is a red light.

12. The automatic door system of claim 10 wherein said monitor means comprises a bi-color LED.

13. The automatic door system of claim 10 wherein said entranceway means further comprises a header disposed above said door and wherein said monitor means, said control means and said operator means are mounted to said header.

14. The automatic door system of claim 13 wherein said header further defines an opening and said monitor means further comprises an LED, said monitor means being mounted to said header, wherein said LED extends through said opening.

15. The automatic door system of claim 10 wherein said monitor means further comprises a pair of optical couplers.

16. The automatic door system of claim 10 wherein said entranceway means further comprises a header disposed above said swing door and said header further defines an opening, and said monitor means further comprises a circuit board and an LED, said circuit board being fixedly mounted to said header, with said LED being disposed in said opening.

17. A monitor module for an automatic door system comprising an activate unit for generating an activate input and a safety unit for generating a safety input and a control unit responsive to said activate and safety inputs for controlling the operation of a door comprising:

first input means for electrically communicating with said activate input;

second input means for electrically communicating with said safety input;

first output means for communicating with an activate terminal of said control unit;

second output means for communicating with a safety terminal of said control unit;

circuit means comprising a circuit board and circuitry communicating with said first and second input means and said first and second output means for generating conditioned signals to said control unit and comprising first emitter means for indicating whether the activate unit is properly operating and second emitter means for indicating whether the safety unit is properly operating; and

mounting means attached to said circuit board for mounting said circuit means in fixed relation.

18. The monitor module of claim 17 wherein said mounting means comprises a two sided adhesive strip.

19. The monitor module of claim 17 wherein said first emitter means is a green light source and said second emitter means is a red light source.