Casement sliding operator

Patent metadata

Field	Value
Publication number	US-10876343-B2
Application number	US-201715836143-A
Country	US
Kind code	B2
Filing date	Dec 8, 2017
Priority date	Dec 8, 2016
Publication date	Dec 29, 2020
Grant date	Dec 29, 2020

Abstract

A casement window operator includes a linear input mechanism configured to be mounted to a stationary frame of a casement window, a linear to rotary motion converter operably coupled to an output of the linear input mechanism, a gear reducer operably coupled to an output of the rotary motion converter, and a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer. The sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window.

First claim

What is claimed is:

1. A casement window operator comprising:
a linear input mechanism configured to be mounted to a stationary frame of a casement window;
a linear to rotary motion converter operably coupled to an output of the linear input mechanism;
a gear reducer operably coupled to an output of the rotary motion converter; and
a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer,
wherein the sash arm is configured to extend from the stationary frame of the casement window to a rotatable window sash of the casement window, and
wherein the linear to rotary motion converter includes a line attached to the linear input mechanism and extending around an input of the gear reducer.

2. The casement window operator of claim 1 , wherein the line includes at least one of:
a chain;
a belt; and
a cable.

3. The casement window operator of claim 1 , further comprising an idler pulley wherein the line forms a continuous loop around the idler pulley and input of the gear reducer.

4. The casement window operator of claim 1 , wherein the linear input mechanism includes a handle to facilitate manual operation of the casement window operator by a user via linear actuation of the linear input mechanism.

5. The casement window operator of claim 1 , wherein the linear to rotary motion converter includes a rack and pinion.

6. The casement window operator of claim 1 , further comprising a track configured to be mounted to a frame of the rotatable window sash, wherein the sash arm is configured to extend from the stationary frame of the casement window to the track and engage the rotatable window sash via the track.

7. The casement window operator of claim 1 , comprising a gear train slide assembly that includes the linear input mechanism and the gear reducer.

8. A casement window comprising:
a stationary frame;
a rotatable window sash pivotably connected to the stationary frame; and
a casement window operator, the casement window operator including:
a linear input mechanism mounted to the stationary frame;
a linear to rotary motion converter operably coupled to an output of the linear input mechanism;
a gear reducer operably coupled to an output of the rotary motion converter; and
a sash arm operably coupled to an output of the gear reducer to rotate in conjunction with the output of the gear reducer,

wherein a distal end of the sash arm is connected to the rotatable window sash such that rotation of the sash arm drives pivoting of the rotatable window sash relative to the stationary frame, and
wherein linear to rotary motion converter includes a line attached to the linear input mechanism and extending around an input of the gear reducer.

9. The casement window of claim 8 , wherein the line includes at least one of:
a chain;
a belt; and
a cable.

10. The casement window of claim 8 , further comprising an idler pulley wherein the line forms a continuous loop around the idler pulley and input of the gear reducer.

11. The casement window of claim 8 , wherein the linear input mechanism includes a handle to facilitate manual operation of the casement window operator by a user via linear actuation of the linear input mechanism.

12. The casement window of claim 8 , wherein the linear to rotary motion converter includes a rack and pinion.

13. The casement window of claim 8 , further comprising a track configured to be mounted to a frame of the rotatable window sash, wherein the sash arm extends from the stationary frame of the casement window to the track and engages the rotatable window sash via the track.

14. The casement window of claim 8 , comprising a gear train slide assembly that includes the linear input mechanism and the gear reducer.

Assignees

• Pella Corp

Inventors

• Erickson Nathan R
• Jungling Jason L

Classifications

• E05Y2201/722

  Racks · CPC title

• E05Y2201/21

  Brakes · CPC title

• E05F11/16

  shifting the wing by pivotally-connected members {(moving) in a plane perpendicular to the pivot axis of the wing} · CPC title

• E05Y2201/26

  Mechanical friction · CPC title

• E05Y2201/654

  Cables · CPC title