US2961266A - Operator for windows with swinging sash - Google Patents

Description

A. w. AHLGREN 2,961,266

OPERATOR FOR WINDOWS WITH SWINGING SASH 2 Sheets-Sheet 1 Nov. 22, 1960 Filed June 16, 1958 Nov. 22, 1960 A. w. AHLGREN 2,961,266

OPERATOR FOR WINDOWS WITH SWINGING SASH Filed June l6. 1958 2 Sheets-Sheet 2 F zlqA.

cfl musy 2,961,266 Ice Pa tented Nov. 22 1960 OPERATOR non wngzggws WITH SWINGING Axel W. Ahlgren, Rockford, Ill., assignor to Amerock Corporation, Rockford, Ill., a corporation of Illinois Filed June 16, 1958, Ser. N0.'7.42,112

2 Claims. (Cl. 292263) This invention relates to awning windows of the type in which a sash is pivotally supported in a frame to swing about an axis extending along one edge of the sash and is opened and closed by a bar which is connected to the sash on the side opposite this axis. The bar is generally perpendicular to the sash and projects through a holein a guide which is secured to the frame. The bar may be formed in a plurality of sections disposed end to end and pivotally connected together so that, when the sash is partly opened, the sections of the bar inside the guide may be swung laterally to an out-of-the-way position.

Gne object of the invention is to provide in a window of the above character a novel and inexpensive arrangement for closing 011 the hole in the guide and prevent inects from entering through this hole while, at the same time, permitting the guide to slide and to tilt thereby to accommodate the changing angle of the sash.

The invention also resides in the provision of a novel means which operates automatically as an incident to the swinging of a section laterally to prevent the bar from sliding in the guide so that the sash cannot be moved from the outside.

Other objects and advantages of the invention will be come apparent from the following detailed description taken in connection with the accompanying drawings, in which:

Figure 1 is a perspective view of a window employing the novel operator bar arrangement of the'present invention.

Fig. 2 is an enlarged sectional view taken along the line 2--2 in Fig. 1.

Fig. 3 is a view similar to Fig. 2 but shows the parts in a different position.

Fig. 4 is an enlarged fragmentary horizontal sectional view taken generally along a line extending across the top of the guide.

Fig. 5 is an enlarged fragmentary front elevation.

Fig. 6 is an enlarged fragmentary perspective view of the guide.

Fig. 7 is an enlarged exploded perspective view of the guide.

As shown in the drawings for purposes of illustration, the invention is embodied in an operator for an awning type window in which a sash 10 is pivotally supported in a frame 11 to swing about a horizontal axis extending along the upper edge of the sash. The sash is swung open and closed by an elongated operator 12 which is generally perpendicular to the sash and is pivotally connected at its outer end to the sash along the lower edge thereof. The pivotal connection between the operator and the sash may be of any suitable type and herein is a curl 13 (Fig. 3) formed on the outer end of the operator and encircling a horizontal pin 14 mounted in a bracket 15 on the sash.

To guide the operator 12 for endwise movement, the latter projects through a support or guide 16 which is fastened to the sill 17 of the window frame 11. Herein, the base is L-shaped with the horizontal leg or flange 18 secured to the sill by screws 19 and the upright leg 20 parallel to the plane of the frame. A rectangular hole 21 is formed in the leg 20 and is substantially equal in width to the operator 12 but is somewhat higher than the thickness of the operator so that the latter may slide and tilt in the hole. The window may be provided with the usual screen 22 whose frame is cut out along the lower edge behind the leg 20 to permit the bar 12 to project through.

Preferably, the operator 12 is formed in four sections 23, 24, 25 and 26 disposed end to end with their adjacent ends pivotally joined together. Thus, the outer section 23, which herein is considerably shorter than the others, is formed with the curl 13 and its inner end is joined to the second section 24 by a pivot pin 27. Similarly, a pivot pin 28 joins the adjacent ends of the second and third sections 24 and 25 and a pin 29 couples the third and inner sections 25 and 26. With this arrangement, the pin 27 is immediately behind the leg 20 when the sash 10 is closed so that the other three sections may be swung to one side as shown in full lines in Fig. 4. In a like manner, the operator 12 may be stopped with the pivot pin 23 behind the leg 20 in which case the third and inner sections are swung laterally to hold the sash partly open (see Fig. 1), or the operator may be stopped at the pin 29.

In accordance with the present invention, the guide 16 is constructed and coacts with the operator 12 in a novel manner so as substantially to block the hole 21 and prevent insects from entering while still permitting the operator to slide and tilt in the hole as it opens and closes the sash 10. To this end, wall members 30 project outwardly from opposite side edges of the hole 21 and a fiat spring strip 31 projects outwardly and downwardly from the top of the hole to bear resiliently ,on the operator 12. Thus, the walls 30, the spring 31 and the operator cooperate to form a box which changes shape as the operator tilts (compare Figs. 2 and 3) but which always substantially blocks and hence closes the hole 21.

Herein, the support or guide 16 is a casting and, as shown in Fig. 7, the wall members 30 are in the form of ears cast integrally with the guide. The opposed surfaces of these ears are coplanar and coextensive with the sides of the hole 21 so that, as illustrated in Fig. 4, these surfaces lie closely alongside the edges of the operator.

While various methods may be used to form the spring strip 31 and to attach it to the guide 16, it is preferred to make it as a part of a separate piece 32 (Fig. 7). The latter is stamped from a sheet of spring steel and is formed with vertical legs 33 connected by a crosspiece 34 and lying flat against the outer surface of the guide 16 with the edges of the legs projecting into notches 35 extending along the inner ends of the ears 30. The legs 33 straddle the ears 30 and between them the spring strip 31 projects downwardly and outwardly from the crosspiece 34. Tabs 36 are bent inwardly from the lower ends of the legs 33 and project in under the guide 16 in recesses 37 formed in the underside of the latter so that the stamping 32 is clamped between the guide and the sill 17.

With the foregoing arrangement, the operator bar 12 projects generally horizontally through the hole 21 when the sash 10 is closed as shown in Fig. 2 and the spring strip 31 bears against the top of the bar resiliently holding the latter against the top of the flange 18 of the guide 16. In this way, the bar 12, the spring 31 and the walls 30 form a triangular box which substantially covers the hole 21. As the operator bar is pushed forward to open the sash, the bar tilts up (see Fig. 3) and the spring strip is bent resiliently upwardly a corresponding amount. Thus, the triangular box changes shape but it nevertheless substantially covers the hole 21.

According to another aspect of the invention, the operator bar 12 and the guide 16 are constructed in a novel manner so that the sash may be latched in various positions and, when so latched, it cannot be unlatched from the outside. For this purpose, a circular recess 38 (Fig. 6) is formed in the top of the flange 18 of the guide in front of the hole 21 and lugs or detents projecting downwardly from the operator bar are received in this recess, the detents being spaced along the bar to be effective for different positions of the sash. Herein, the lugs are formed by the pivot pins 27, 28 and 29 which project downwardly below the operator bar as shown in Figs. 2 and 3. Thus, when the sash is closed, the pin 27 projects into the recess 38. To open the sash, the bar 12 is raised slightly to lift the pin out of the recess and the bar is pushed forward to open the sash. When the sash is partly open, the pin 28 enters the recess and holds the sash in this position. Similarly, the sash may be held further open by the pin 29 and, if desired, an additional lug 39 (Fig. 1) may be secured to the bar 12 adjacent the inner end of the latter to hold the sash fully open.

When the sash 10 is latched by one of the pins 27, 28 and 29, the sections of the bar 12 behind the active pin are swung laterally about this pin to overlie the sill 17. Advantage is taken of this to prevent the bar from being raised to lift the pin out of the recess 38 as long as the inner sections of the bar are in the lateral position so that the bar cannot be moved from outside the window. For this purpose, means is provided to prevent the operator, when one or more sections has been turned, from being raised enough to lift the active pivot pin out of the recess 38. Herein this means comprises ears 40 projecting inwardly from the inner side of the flange of the guide 16 on opposite sides of the hole 21. The lower ends of these ears stop short of the base flange 18 of the guide by a distance which is greater than the thickness of the operator bar 12 but is less than combined thickness of the bar and depth that the pivot pins project beneath the bar. Thus, when a section of the bar is swung in under one of the ears as shown in Fig. 4, the bar when raised abuts the ear before the active pin is raised out of the recess 38. As a result, the bar cannot he slid in the hole 21 and hence the sash 10 cannot be opened or closed without first straightening the bar.

I claim as my invention:

1. For use with a window having a frame and a sash mounted in said frame to swing about a predetermined axis, the combination of, a support adapted to be secured to said frame and having a flange disposed parallel to the plane of the frame, said flange having a hole therethrough, two elongated members pivotally joined together at adjacent ends to form-an operator bar projecting through and sliding in said hole, a lug projecting downwardly from one of said members adjacent the pivotal connection thereof, a recess formed in said support behind and below said hole to receive said lug and prevent sliding of said members, and an ear projecting rearwardly from said flange alongside said hole and spaced above said recess to permit one of the members to be swung under the car when the lug is in the recess, the space between the ear and the recess being less than the combined thickness of said one member and said lug to prevent the lug from being lifted out of the recess.

2. For use with a window having a frame and a sash mounted in said frame to swing about a predetermined horizontal axis, the combination of, a support adapted to be secured to said frame and having a vertical flange disposed parallel to the plane of the frame, said flange having a generally rectangular hole therein, an elongated rigid bar projecting through said hole to be guided in the hole for endwise sliding, means on the outer end of said bar for pivotally connecting the bar to said sash with the pivotal axis paralleling said predetermined axis whereby the bar tilts in said hole as the sash is swung open and closed, said bar being substantially as wide as said hole and said hole providing substantial clearance between the top of said bar and the top of said hole to permit the bar to tilt during opening and closing of the sash, means rigid with said support and forming generally parallel walls projecting outwardly from opposite sides of said hole to lie closely alongside said bar, and a flat spring strip mounted on said flange and projecting down from the top of said hole and between said walls to bear resiliently against said bar and hold the latter against the lower edge of said hole, said strip being substantially as wide as said bar whereby said bar, said walls and said spring strip block said hole while permitting the bar to slide and tilt in the hole.

Cook Mar. 5, 1935 Turner Aug. 14, 1956

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