Device for operating a door leaf or the like and door structure provided with such a device

• US 7,296,380 B2
• Filed: 10/19/2001
• Issued: 11/20/2007
• Est. Priority Date: 10/19/2000
• Status: Expired due to Fees

• Current Assignee: EBm Konstruktioner AB
• Original Assignee: Besam International HB
• Inventors: Backman, Eric
• Primary Examiner(s): REDMAN, JERRY E
• Application Number:
  US10/398,773
• Publication Number:
  US 20040035057A1
• Time in Patent Office: 2,223 Days
• Field of Search: 491/39, 491/40, 493/39, 493/40, 493/41, 74/891.2, 74/893.7, 74/893.5
• US Class Current: 49/341
• CPC Class Codes: E05F 1/105 with a compression spring
• CPC Class Codes: E05F 15/603 using rotary electromotors
• CPC Class Codes: E05F 15/614 operated by meshing gear wheels, one of which being mounted at the wing pivot axis; operated by a motor acting directly on the wing pivot axis
• CPC Class Codes: E05F 15/63 operated by swinging arms
• CPC Class Codes: E05F 2003/228 Arrangements where the end of the closer arm is sliding in a track
• CPC Class Codes: E05F 2015/631 the end of the arm sliding in a track; Slider arms therefor
• CPC Class Codes: E05F 3/102 with rack-and-pinion transmission between driving shaft and piston within the closer housing
• CPC Class Codes: E05F 3/224 for assisting in opening the wing
• CPC Class Codes: E05Y 2201/214 Disengaging means
• CPC Class Codes: E05Y 2201/232 by automatically acting means
• CPC Class Codes: E05Y 2201/41 for closing
• CPC Class Codes: E05Y 2201/422 for opening
• CPC Class Codes: E05Y 2201/434 Electromotors; Details thereof
• CPC Class Codes: E05Y 2201/47 Springs; Spring tensioners
• CPC Class Codes: E05Y 2201/474 Compression springs
• CPC Class Codes: E05Y 2400/53 Wing impact prevention or reduction
• CPC Class Codes: E05Y 2600/13 by motors, magnets, springs, weights
• CPC Class Codes: E05Y 2800/113 Power assistance
• CPC Class Codes: E05Y 2800/12 Sealing
• CPC Class Codes: E05Y 2800/28 tubular
• CPC Class Codes: E05Y 2900/132 : Doors
• CPC Class Codes: Y10T 74/18672 : Plural screws in series [e.g., telescoping, etc.]

Abstract

A device for opening and closing a pivotally mounted door leaf including an actuator, which is displaceably and/or rotatingly arranged in a housing and connected to the door leaf and which, during displacement/rotation, actuates the door leaf, and a drive motor which is connected to the actuator for providing displacement/rotation thereof.

Claims

1. A device for opening and closing a pivotally mounted door leaf, comprising:

the door leaf; and

an actuator, which is at least one of displaceably and rotatably arranged in a casing and connected to the door leaf and which, during at least one of displacement and rotation, actuates said door leaf, and a drive motor which is connected to the actuator for providing at least one of displacement and rotation thereof, the actuator including a first element which is connected to the door leaf, and a second element which is connected to the drive motor, wherein the first and second elements are interconnected by a biased spring in such manner that a movement of the door leaf and a rotary movement of the drive motor, respectively, are taken up by and stored in the biased spring independently of each other, the biased spring being enclosed by the second element.

2. A device according to claim 1, in which the first and second elements are telescopically interconnected, the biased spring being contained in the first and second elements.

3. A device according to claim 2, in which the first element is axially displaceable in the casing, the second element being contained in the first element and axially displaceable therein.

4. A device according to claim 2, in which the first element has an engaging element which engages a corresponding engaging element of an actuating shaft projecting from the casing and being adapted to actuate the door leaf, the drive motor being connected to the second element, which is contained in the first element.

5. A device according to claim 1, in which the biased spring includes an axially biased pressure spring contained in the second element.

6. A device according to claim 1, in which the first element includes a trunnion, which is contained in the casing and enclosed by the second element and with the biased spring arranged there between, the biased spring includes a torsion spring which at either end is connected to the elements.

7. A device according to claim 1 in which the biased spring is arranged between and connected to the first and second elements included in the actuator.

8. A device according to claim 1, in which the first and second elements of the actuator are intended for axial displacement as well as rotation.

9. A device according to claim 8, in which the biased spring of the actuator serves both as compression spring and torsion spring.

10. A device according to claim 1, which further comprises a damper adapted to dampen the movements of the actuator.

11. A device according to claim 1, in which at least two sensors including an angle sensor and a position sensor are arranged adjacent to a motor shaft and along the first element, respectively.

12. A device according to claim 1, in which the drive motor has a threaded motor shaft threadably engaging a threaded bearing at one end of the second element.

13. A door structure, including the device according to claim 1.

14. A door structure according to claim 13, which further includes a door frame and the pivotally mounted door leaf, the device for opening and closing being mounted in the pivotally mounted door leaf.