Arrangement in a swing door apparatus for the detection of door position

• US 20070011947A1
• Filed: 03/25/2004
• Published: 01/18/2007
• Est. Priority Date: 04/02/2003
• Status: Abandoned Application

• Current Assignee: Abloy Oy (Assa Abloy AB)
• Original Assignee: Abloy Oy (Assa Abloy AB)
• Inventors: Koponen, Arto
• Application Number:
  US10/551,529
• Publication Number:
  US 20070011947A1
• Time in Patent Office: Days
• US Class Current: 49/341
• CPC Class Codes: E05F 15/603 using rotary electromotors
• CPC Class Codes: E05F 15/611 for swinging wings
• CPC Class Codes: E05F 15/63 operated by swinging arms
• CPC Class Codes: E05Y 2400/334 by using pulse generators
• CPC Class Codes: E05Y 2600/458 in or on a transmission member
• CPC Class Codes: E05Y 2800/00 Details, accessories and auxiliary operations not otherwise provided for
• CPC Class Codes: E05Y 2900/132 Doors

Abstract

An arrangement in a swing door apparatus for the detection of door position, which swing door apparatus comprises an operation shaft, the turning of which follows the door movements. The detection of door position is arranged to be provided by potentiometric means or the like, which have at least substantially identical characteristic curves and which are arranged operatively dependent on the turning angle of said operation shaft.

Claims

1-6. -6. (canceled)

7. An arrangement in a swing door apparatus for the detection of door position, which swing door apparatus comprises an operation shaft, the turning of which follows the door movements, whereby the detection of door position is arranged to be provided by potentiometric means or the like, which are arranged operatively dependent on the turning angle of said operation shaft, wherein said potentiometric means comprise two potentiometers, which have at least substantially identical characteristic curves and which are arranged in conjunction with a common shaft so that they preferably find themselves in a phase shift of 180°

with respect to one another.

8. A position detecting arrangement according to claim 7, wherein it comprises a control unit, for instance a programmable logic circuit or a microprocessor, which is arranged to select each time the potentiometer to be used for the detection of door position so that the position detecting is performed within the linear range of the potentiometer in use.

9. A position detecting arrangement according to claim 7, wherein said potentiometric means are arranged in conjunction with a rotatable member dependent on the turning of said operation shaft.

10. A position detecting arrangement according to claim 9, wherein the rotational freedom of said rotatable member corresponds to the swinging of the door from its closed position to the maximum opened position.

11. A position detecting arrangement according to claim 9, wherein said rotatable member is a gear wheel or the like, which is mechanically coupled to said operation shaft and arranged to rotate said shaft of the potentiometric means.

12. A position detecting arrangement according to claim 7, wherein the swing door apparatus comprises an electric motor to be connected to said operation shaft in a manner known per se, and a power source, and that said potentiometric means receive their power supply from said power source.