Shutter with gear drive for louvres

• US 20120085030A1
• Filed: 10/07/2010
• Published: 04/12/2012
• Est. Priority Date: 10/07/2010
• Status: Active Grant

• Current Assignee: Maxxmar Inc.
• Original Assignee: Maxxmar Inc.
• Inventors: Marocco, Mario M.
• Granted Patent: US 8,393,379 B2
• Time in Patent Office: Days
• US Class Current: 49/82.1
• CPC Class Codes: E06B 7/096 operated or interconnected by gearing wing operators with gearing in general E05F11/00

Abstract

A shutter of the type having a frame, and louvres extending from side to side within the frame, the louvres being rotatable about parallel axes, the side frames having a hollow interior, and defining longitudinal slots, and having a louvre control member within the frame for operating all louvres, drive connector members connected to the louvre control member for engaging respective louvres, and each drive connector member in turn having a first gear operated by the louvre control member, a second gear supporting and driving an end of a louvre, a drive housing supporting the first and second gears in meshing engagement, and, drive surfaces on the first gear for interengaging with the louvre control member.

Claims

1. A shutter of the type having a frame, and louvres extending from side to side within the frame, the louvres being rotatable about parallel axes, the side frames having a hollow interior, and defining longitudinal slots, and comprising;

a louvre control member within at least one side of the frame for operating all louvres;

drive connector members connected to said louvre control member for engaging respective said louvres, and each said drive connector member in turn defining, a first gear operated by said louvre control member;

a second gear supporting and driving an end of a louvre;

a drive housing supporting said first and second gears in meshing engagement, and, drive surfaces on said first gear for interengaging with said louvre control member.

2. A shutter as claimed in claim 1 wherein said louvres have louvre pivot pins at each end and the second gear has a recess for receiving a pivot pin of a louvre.

3. A shutter as claimed in claim 2 wherein said louvre control member is of non circular shape in section, and the first gears have through openings of corresponding shape to receive the louvre control member.

4. A shutter as claimed in claim 3 wherein said louvre pivot pins are of non circular shape in section and the second bevel gear recesses are of corresponding shape

5. A shutter as claimed in claim 4 wherein the drive housing has a first gear bearing and a second gear bearing for supporting respective first and second gears.

6. A shutter as claimed in claim 5 wherein the first and second gears are bevel gears and are arranged on respective gears axes at 90 degs to one another.

7. A shutter as claimed in claim 6 wherein the drive housing has two first gear bearing walls lying spaced apart in parallel planes and each defining a respective first gear bearing.

8. A shutter as claimed in claim 7 wherein the first gear body defines a generally cylindrical body with the first gear intermediate its ends, and said cylindrical body forming rotation surfaces at each end, and the second body gear defines a generally cylindrical body with the second gear at one end and a rotation surface intermediate its ends.

9. A shutter as claimed in claim 8 wherein the drive housing defines two spaced apart first bearing walls for said first gear body and an intermediate second gear bearing wall, intermediate said first gear bearing walls, for supporting said second gear body.

10. A shutter as claimed in claim 9 including an arcuate bearing opening defined in one of said first bearing walls, and a circular bearing opening defined in the other of said first bearing walls.

11. A shutter as claimed in claim 10 including a circular bearing opening formed in said second gear bearing wall.

12. A shutter as claimed in claim 11, wherein said second gear bodies are oriented on horizontal axes and extend within said side frames, towards said longitudinal slots, and wherein said louvre pins extend through said slots into said second gear body.

13. A shutter as claimed in claim 11 including a raise member connected to said drive connector assemblies operable to raise said drive connector assemblies and said louvres.