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

• US 20040035057A1
• Filed: 04/10/2003
• Published: 02/26/2004
• Est. Priority Date: 10/19/2000
• Status: Active Grant

• Current Assignee: EBm Konstruktioner AB
• Original Assignee: Danviken International Handelsbolag
• Inventors: Backman, Eric
• Granted Patent: US 7,296,380 B2
• Time in Patent Office: Days
• US Class Current: 49/340
• 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
• CPC Class Codes: E05Y 2201/474 Compression springs
• CPC Class Codes: E05Y 2400/3015 Power assistance
• CPC Class Codes: E05Y 2400/53 Wing impact prevention or reduction
• CPC Class Codes: E05Y 2600/13 by motors, magnets, springs or weights
• CPC Class Codes: E05Y 2800/12 Sealing
• CPC Class Codes: E05Y 2800/28 tubular, annular
• 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 (2) or the like comprises an actuator, which is displaceably and/or rotatingly arranged in a housing (10) and connected to the door leaf and which, during displacement rotation, actuates said door leaf, and a drive motor (27) which is connected to the actuator for providing displacement/rotation thereof.

Claims

1. A device for opening and closing a pivotally mounted door leaf (2) or the like, comprising an actuator, which is displaceably and/or rotatably arranged in a casing (10;

50) and connected to the door leaf and which, during displacement/rotation, actuates said door leaf, and a drive motor (27) which is connected to the actuator for providing displacement/rotation thereof, the actuator comprising a first element (11;

52) which is connected to the door leaf, and a second element (16;

51) which is connected to the drive motor (27), characterised in that the elements (11, 16;

51, 52) are interconnected by means of a biased spring means (23;

53) in such manner that the movement of the door leaf (2) and the rotary movement of the drive motor (27), respectively, are adapted to be taken up by and stored in the spring means (23;

53) independently of each other.

2. A device according to claim 1, in which the two elements (11, 16) are telescopically interconnected, the biased spring means (23) being contained in the two elements.

3. A device according to claim 2, in which the first element (11) is axially displaceable in the casing (10), the second element (16) being contained in the first element (11) and axially displaceable therein.

4. A device according to claim 2 or 3, in which the first element (11) has engaging means (12) which engage corresponding engaging means (13) of an actuating shaft (6) projecting from the casing (10) and being adapted to actuate the door leaf (2), the drive motor (27) being connected to the second element (16), which is contained in the first element (11).

5. A device according to any one of the preceding claims, in which the spring means comprises an axially biased pressure spring (23) contained in the second element (16).

6. A device according to claim 1, in which the first element comprises a trunnion (52), which is contained in the casing (50) and enclosed by the second element (51) and with the spring means (53) arranged therebetween, the spring means comprising a torsion spring (53) which at either end is connected to the elements (51, 52).

7. A device according to any one of the preceding claims, in which the spring means (23;

53) is arranged between and connected to the two elements included in the actuator (11, 16;

51, 52).

8. A device according to any one of the preceding claims, in which the elements of the actuator are intended for axial displacement as well as rotation.

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

10. A device according to any one of the preceding claims, which further comprises a damper means (29) adapted to dampen the movements of the actuator (11, 16;

51, 51).

11. A device according to any one of the preceding claims, in which two sensors in the form of an angle sensor and a position sensor are arranged adjacent to a motor shaft (28) and along the first element (11;

52), respectively.

12. A device according to any one of the preceding claims, in which the drive motor (27) has a threaded motor shaft (28) threadably engaging a threaded bearing (25) at one end (19) of the second element (16;

51).

13. A door structure, characterised in that it has a device according to any one of the preceding claims.

14. A door structure according to claim 13, which comprises a door frame (3) and at least one pivotally mounted door leaf (2), the device for opening and closing being mounted in the door leaf (2).