BARRIER OPERATOR CONTROLLER WITH USER SETTABLE CONTROL LIMITS WHEN ENTRAPMENT DEVICE PRESENT

• US 20070001637A1
• Filed: 02/21/2006
• Published: 01/04/2007
• Est. Priority Date: 06/30/2005
• Status: Active Grant

• Current Assignee: Overhead Door Corporation (Sanwa Holdings Corp.)
• Original Assignee: Overhead Door Corporation (Sanwa Holdings Corp.)
• Inventors: Theile, Ulrich, Murphy, Larry
• Granted Patent: US 7,180,260 B2
• Time in Patent Office: Days
• US Class Current: 318/466
• 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 15/40 Safety devices, e.g. detection of obstructions or end positions
• CPC Class Codes: E05F 15/41 Detection by monitoring transmitted force or torque E05F15/48 takes precedence; Safety couplings with activation dependent upon torque or force, e.g. slip couplings
• CPC Class Codes: E05F 15/42 Detection using safety edges
• CPC Class Codes: E05F 15/668 for overhead wings
• CPC Class Codes: E05Y 2400/31 Force or torque control
• CPC Class Codes: E05Y 2400/315 Curve setting or adjusting
• CPC Class Codes: E05Y 2400/456 for programming
• CPC Class Codes: E05Y 2400/554 sensing motor load
• CPC Class Codes: E05Y 2400/58 Sensitivity setting or adjustment
• CPC Class Codes: E05Y 2400/822 Light emitters, e.g. LEDs
• CPC Class Codes: E05Y 2800/22 of not identical elements of the same category, e.g. combinations of not identical springs
• CPC Class Codes: E05Y 2800/246 with at least one element being redundant
• CPC Class Codes: E05Y 2900/106 for garages
• CPC Class Codes: G05B 19/4061 Avoiding collision or forbidden zones
• CPC Class Codes: G05B 2219/42288 Limit, stop drive current if axis obstructed, blocked, force against stop

Abstract

A barrier operator includes a drive motor and a controller for causing the motor to move the barrier between open and closed positions and for monitoring parameters related to forces acting on the barrier during movement thereof. If no external entrapment device is connected to the controller, the controller automatically sets maximum control limit values which will effect stopping or reversing of the motor if an obstruction is encountered by the barrier. If an external entrapment device is connected to the controller, the controller requires a user to set the control limit values at least for movement of the barrier from an open position to a closed position. Audio or visual signal indicators associated with the controller alert the user to the requirement to set the control limits before the operator will effect movement of the barrier.

Claims

1-12. -12. (canceled)

13. A motor driven barrier operator for moving a barrier between open and closed positions, comprising:

a motor driveably connected to said barrier for moving said barrier between said open and closed positions;

a controller operably connected to said motor;

a control module including user input controls for commanding said controller;

an external entrapment device associated with said barrier and adapted to be operably connected to said controller for providing a signal to said controller indicating the presence of said external entrapment device; and

said controller is responsive to user input of one of barrier opening and closing force limit values when said external entrapment device is connected to said controller to adjust said at least one of said force limits exerted on said barrier by said motor when moving said barrier between said open and closed positions.

14. The operator set forth in claim 13 including:

an indicator for indicating to a user of said operator when said user is required to input said limit values.

15. The operator set forth in claim 13 wherein:

said controller includes means for measuring and storing values related to electrical current input to said motor during operation to move said barrier between said open and closed positions.

16. The barrier operator set forth in claim 13 including:

a visual display for displaying to a user of said operator a condition of said controller requiring user input of information to determine threshold force limit values; and

user actuatable means for setting said threshold values.

17. The barrier operator set forth in claim 16 wherein:

said display is disposed on a wall console operable to communicate with said controller.

18. The barrier operator set forth in claim 16 wherein:

said display is disposed on an operator head unit, said head unit supporting said motor.

19. A method for adjusting an internal control limit for a motorized barrier operator, comprising:

establishing a profile of at least one operating parameter of said operator when moving said barrier between open and closed limit positions;

storing profile values in a controller associated with said operator;

determining if an external entrapment device is operably connected to said operator;

causing said controller to automatically set control limit values of said parameter for controlling said motor if said external entrapment device is not operably connected to said controller; and

requiring a user input of control limit values to said controller if said external entrapment device is operably connected to said controller.

20. The method set forth in claim 19, further comprising:

generating a signal to said user to advise said user of the requirement to set said control limit values.

21. The method set forth in claim 19, including the step of:

requiring said user to set a force threshold value for operation of said barrier when moving from an open position to a closed position.

22. The method set forth in claim 19, including the step of:

requiring said user to set a force threshold value for operation of said barrier when moving from a closed position to an open position.

23. The method set forth in claim 19, including:

providing a user interface including a visual display operable to display said control limit values.

24. The method set forth in claim 23, wherein:

said user interface includes means for enabling said user to make inputs of increasing control limit values and decreasing control limit values, respectively, and said method includes the steps of;

initiating a mode of said controller which requires said user to input control limit values for moving said barrier from at least one of an open position to a closed position and a closed position to an open position.