US3861082A

US3861082A - Pivoted removable sash type window

Info

Publication number: US3861082A
Application number: US342943A
Authority: US
Inventors: Matthew L Dau
Original assignee: Perfect Seal Window Inc
Current assignee: Perfect Seal Window Inc
Priority date: 1973-03-20
Filing date: 1973-03-20
Publication date: 1975-01-21
Anticipated expiration: 1992-01-21

Abstract

Tilt type sash windows usually comprise a pivot assembly slidable in the jamb liner on each side of the sash. The bottom of each sash is pivotally mounted in this assembly. The top of each sash is provided with a slide lock for unlocking and allowing the window to pivot inwardly. If it is desirable to remove the window from the mechanism, a tool is required to unbolt or open a slot. The present device provides the bottom rail of each sash with a wedge-shaped opening. A wedge-shaped pivot bar extends across the window opening and is provided with suitable extensions at each end for engaging the pivot assembly. The wedge-shaped pivot bar is positioned in the wedge-shaped opening of the bottom rail so that the sash, wedge-shaped pivot bar, and the pivot assembly slide vertically together. To remove the sash, the slide lock is pulled in and the upper end of each sash is pivoted inwardly in the conventional manner. Now, the bottom end of the sash is raised so that the wedge-shaped opening slides off the wedge-shaped pivot bar. The window is now free from the mechanism.

Description

United States Patent Dan [451 Jan. 21, 1975 [75] Inventor: Matthew L. Dau, Long Island, N.Y.

[73] Assignee: Perfect Seal Window Inc., Ozone Park, N.Y.

[22] Filed: Mar. 20, 1973 [21] Appl. No.: 342,943

[52] US. Cl. 49/181, 49/453 [51] Int. Cl E05d 15/22 [58] Field of Search 49/196, 174, 172, 181, 49/176, 453

[56] References Cited UNITED STATES PATENTS 1,428,068 9/1922 Walker 49/176 X 1,688,836 10/1928 Stein 49/176 3,055,062 9/1962 Peters et al. 49/174 3,126,588 3/1964 Osten 49/174 3,222,733 12/1965 Wahlfeld et al. 49/181 3,434,236 3/1969 Weidner et al. 49/181 X Primary Examiner-Dennis L. Taylor Attorney, Agent, or FirmSalter & Michaelson [57] ABSTRACT Tilt type sash windows usually comprise a pivot assembly slidable in the jamb liner on each side of the sash. The bottom of each sash is pivotally mounted in this assembly. The top of each sash is provided with a slide lock for unlocking and allowing the window to pivot inwardly. If it is desirable to remove the window from the mechanism, a tool is required to unbolt or open a slot. The present device provides the bottom rail of each sash with a wedge-shaped opening. A wedgeshaped pivot bar extends across the window opening and is provided with suitable extensions at each end for engaging the pivot assembly. The wedge-shaped pivot bar is positioned in the wedge-shaped opening of the bottom rail so that the sash, wedge-shaped pivot bar, and the pivot assembly slide vertically together. To remove the sash, the slide lock is pulled in and the upper end of each sash is pivoted inwardly in the conventional manner. Now, the bottom end of the sash is raised so that the wedge-shaped opening slides off the wedge-shaped pivot bar. The window is now free from the mechanism.

PIVOTED REMOVABLE SASH TYPE WINDOW BACKGROUND OF THE INVENTION Extruded aluminum window constructions of the double hung type have become popular because of their easy handling and installation. To allow access to both sides of the sash for cleaning, such windows are usually constructed so that each sash can be tilted 90 into the room. To this end, a tilt or pivot device is provided which pivotally carries the bottom end of the sash and slides vertically in the jamb. While effective in allowing the sash to pivot, the pivot mechanism does not permit ready removal of the sash from the frame. To accomplish such removal, a screwdriver or other tool must normally be used to release the parts, and in those assemblies where no tool is required to effect removal of the sash, the danger of the sash becoming accidentally removed is a serious problem.

SUMMARY OF THE INVENTION The present invention provides a pivoted sash type window with a pivot construction which permits the sash to be lifted and removed from the pivot mechanism without the use of tools, and in such a way that the danger of accidental removal of the sash is negligible. Conventionally a carrying frame is slidable in each jamb, the frame carrying a pivot device which receives a pivot bar normally mounted on the bottom of each sash as shown, for example, in U.S. Pat. No. 3,055,062 issued Sept. 25, 1962 to Peters et al, and entitled Pivoted Sash Type Window. In accordance with the present invention, the bottom rail of each sash is provided with a wedge-shaped opening extending inwardly from the inside or front of the window (when the sash is in vertical position). A wedge-shaped picot bar extends across the window opening and is provided with extensions at each end for engaging the pivot device. The wedge-shaped pivot bar is frictionally engaged in the wedge-shaped opening so that the sash rides vertically with the pivot bar and pivot assembly. When the sash is pivoted inwardly 90, the bottom end can be lifted up so that the bottom rail and its wedge-shaped opening can be removed from the wedge-shaped pivot bar, freeing the sash without the use of tools. To replace, the bottom rail is placed over the pivot bar, the bar and opening nesting together again. The sash is now tilted to its vertical position and the window is back in place.

Other objects, features and advantages of the invention shall become apparent as the description thereof proceeds when considered in connection with the accompanying illustrative drawings.

DESCRIPTION OF THE DRAWINGS In the drawings which illustrate the best mode presently contemplated for carrying out the present invention:

FIG. I is a perspective view showing a window with both sashes pivoted inwardly;

FIG. 2 is a vertical section of the window with both sashes in vertical closed position;

FIG. 3 is an enlarged fragmentary section showing the lower rail of a sash in tilted position;

FIG. 4 is a view similar to FIG. 3 with the sash removed from the pivot bar; and

FIG. 5 is an exploded perspective view of the pivot bar mounting in the pivot assembly.

DESCRIPTION OF THE INVENTION Referring more in detail to the drawings, the window of the present invention comprises a frame 10 having a head 12, side jambs l4, and a sill l6. Slidable in the frame 10 are the upper sash 18 and lower sash 20. The lower sash 20 comprises glass panes 22 mounted in extruded frames, all of which are conventional. In a pivoted sash, the top extrusion 24 conventionally carries a pair of slide latches 26, each having a front fingerengagable operating button 28. This assembly appears at each side edge for releasing the top of the sash from the frame for pivoting. More specifically, when it is desired to tilt or pivot the sash, the buttons 28 are each slid inwardly to release the latches 26 from the frame whereby the desired pivoting or tilting of the sash may be effected. The back of the extrusion 24 is provided with a hooked portion 30 which interengages with portion 58 on the upper sash 18 for Weatherstripping purposes.

The lower sash 20 rides in a conventional pivot member 32, see FIG. 5. The member 32 isprovided with a nylon tilt mechanism 34 having a flat central slot 36. An extruded wedge-shaped pivot bar 38 extends across the window opening. At each end, a 3 inch length of U- shaped rectangular bar 40 is inserted and locked in place by a set screw 42 with a small portion extending outwardly, which portion fits into the slot 36 of the nylon pivot member 34, FIG. 5.

The bottom rail 44 of the lower sash 20 comprises an extruded strip having a portion 46 for holding the glass 22, an extended portion 48 for manual engagement to lift the sash, and a wedge-shaped opening 50 for receiving the wedge-shaped pivot bar 38, FIG. 3. The lower sash 20 is thus mounted on the bar 38 by wedging the bar into the opening 50.

The upper sash 18 is similarly mounted. The upper raial 52 is provided with slide latches 54. The bottom rail 56 is provided with the hooked portion 58 for interengaging with the portion 30 on the bottom sash for Weatherstripping, a curved portion 60 for manual engagement to draw the window down, and a wedgeshaped opening 62 similar to the opening 50 in the lower sash. The opening 62 receives a wedge-shaped bar 64 similar to the bar 38 and riding in a pivot member (not shown) identical to the member 32.

It should be noted that the window may be provided with conventional braking and balancing systems for ease of movement and for holding the window in position. Such a construction isillustrated in aforesaid US Pat. No. 3,055,062.

With the parts assembled as hereinabove described, the bottom rails 44 and 56 are mounted on their respective wedge-

shaped bars

38 and 64. The windows are in vertical position and held there by the latches 26 and 54. To tilt the windows into the position shown in FIGS. 1 and 3, the latch buttons are manually operated to release the windows and the windows are pulled inwardly, the bar 38 and extension 40 causing the member 34 to turn Removal of the window is simple. As shown in FIG. 4, the rail 44 is lifted vertically so that the wedge-shaped opening 50 lifts off the wedgeshaped pivot bar 38. The window is now completely free of the frame. The upper sash 18 is removable in the same manner. To return the window, it is held horizontally and the wedge-shaped opening 50 is pushed onto the wedge-shaped pivot bar 38 into the position shown in FIG. 3. The window can now be tilted upwardly to vertical position, FIG. 2, and the latches 26 moved outwardly to latch the window in this position.

The construction is thus simple and easy with very little departure from the conventional window constructions. However, the construction provides an extremely simple and quick method of completely removing a sash from the frame. No tools are required to release or install the window. Furthermore, the operation is so simple that any housewife can release the window without following complicated instructions. With the sash in its vertical operating position it is impossible for it to become detached from the pivot bar because the sash rides against the outer leg of the side jamb. Removal can only be effected with the window in its 90 tilted position, and when in this position, the window can be safely cleaned without danger of accidental removal because the pressure applied during the cleaning operation will tend to force the sash downwardly on to the pivot bar. Also, when the window has been removed and it is desired to replace same, the wedgeshaped opening 50 can be easily aligned with the pivot bar and forced downwardly thereagainst.

While there is shown and described herein certain specific structure embodying the invention, it will be manifest to those skilled in the art that various modifications and rearrangements of the parts may be made without departing from the spirit and scope of the underlying inventive concept and that the same is not limited to the particular forms herein shown and described except insofar as indicated by the scope of the appended claims.

What is claimed is:

l. A pivoted removable sash window comprising a frame including side jambs, a pair of pivot members slidably mounted in each of said side jambs, a pivot bar attached to each of said pivot members and extending across said frame, said pivot bar and pivot members being slidable as a unit up and down along said side jambs and said pivot members permitting rotation of said pivot bar about its own axis, said window comprising a bottom sash having a recessed portion therein extending completely thereacross, said recess portion being configured so as to frictionally receive said pivot bar therein, whereby said window is removably attached to said pivot bar, and means for releasably latching the upper rail of the window into vertical sliding position in said frame, said recessed portion being of generally U-shaped configuration, said U-shaped configuration being disposed on its side when the window is in vertical position and being inverted when the window is swung to horizontal position, whereby said window may be lifted upwardly off said pivot bar when said window is horizontally disposed.

2. In the window of claim 1, said pivot bar having a wedge-shaped cross section.

Claims

1. A pivoted removable sash window comprising a frame including side jambs, a pair of pivot members slidably mounted in each of said side jambs, a pivot bar attached to each of said pivot members and extending across said frame, said pivot bar and pivot members being slidable as a unit up and down along said side jambs and said pivot members permitting rotation of said pivot bar about its own axis, said window comprising a bottom sash having a recessed portion therein extending completely thereacross, said recess portion being configured so as to frictionally receive said pivot bar therein, whereby said window is removably attached to said pivot bar, and means for releasably latching the upper rail of the window into vertical sliding position in said frame, said recessed portion being of generally U-shaped configuration, said U-shaped configuration being disposed on its side when the window is in vertical position and being inverted when the window is swung to horizontal position, whereby said window may be lifted upwardly off said pivot bar when said window is horizontally disposed.