US3044131A - Operating and locking mechanism for awning type windows - Google Patents

Description

y 1952 s. c. REYNAUD 3,044,131

OPERATING AND LOCKING MECHANISM FOR AWNING TYPE WINDOWS Filed July 27, 1960 4 Sheets-Sheet 1 y 1962 v s. c. REYNAUD 3,044,131

OPERATING AND LOCKING MECHANISM FOR AWNING TYPE WINDOWS Filed July 27, 1960 4 Sheets-Sheet 2 E :2 a j I! 5 .9; J W 25 j, 1/? /4 J2 //0 v 14 3% INVENTOR. 9' Java e] C. feyrzdzzl 4 BY Y E AJJMI July 17, 1962 s. c, REYNAUD 3,044,131

OPERATING AND LOCKING MECHANISM FOR AWNING TYPE WINDOWS Filed July 27, 1960 4 Sheets-Sheet 3 INVEN TOR. \f'lmz/e/ 6T feyrrzzzi July 17, 1962 s. c. REYNAUD 3,044,131

OPERATING AND LOCKING MECHANISM FOR AWNING TYPE WINDOWS 4 Sheets-Sheet 4 Filed July 27, 1960 I N VEN TOR. Java X C. FeyrmvxZ 1 E BY E "LU/4M1 iigz United States Patent 3,044,131 OPERATWG AND LQCKING MEQHANISM FUR AWNING TYPE WINDOWS Samuel C. Reynaud, 845 Lake Shore Drive, Grosse Pointe Shores, Mich. Filed July 27, 1960, Ser. No. 45,576 2 Claims. (Cl. -42.)

This invention relates generally to awning type Windows and more particularly to an improved operating and locking mechanism for, awning type windows.

Awning windows of the type to which this invention relates generally include a plurality of sashes or ventilators arranged vertically, with each one of the sashes being pivoted on a pair of balance arms or links which are operable to support the sashes in substantially horizontal open positions. Previous awning windows of this type have either required a separate locking mechanism for locking them in their closed positions or have utilized locking mechanisms which lock automatically on closing of the windows but which are extremely complicated and difficult to manufacture within practical tolerance limits. The primary object of this invention, therefore, is toprovide an improved mechanism for automatically locking the windows in response to closing movement of the windows and which is operated by the same mechanism which is used to open and close the windows.

Another object of this invention is to provide an automatic locking mechanism for awning type windows which utilizes a final relative vertical movement between the sashes and the frame during closing of the sashes to move coacting latch members into latching positions. The sashes are mounted so that the final closing movement is a substantially vertical upward movement which is utilized to move locking pins on the sashes upwardly and to swing latch members or hooks on the frame downwardly into latching engagement with the pins. As a result, only a small upward movement of the sashes is required to accomplish locking, thereby minimizing wear on the Weather strip or seal and simplifying the sash construction because of the reduced vertical overlap that is required between the sashes and the frame,

Another object is to provide a window assembly which includes an improved operating and locking mechanism and which does not require an independent adjustment for each of the sashes during installation and use.

Further objects, features and advantages of this invention will become apparent from a consideration of the following description, the appended claims and the accompanying drawing in which:

FIGURE 1 is an elevational view of a window according to the instant invention shown from the side normally facing the interior of the building in which the window is installed;

FIGURE 2 is an enlarged sectional view of the window shown in FIGURE 1 taken substantially along the line 2r2 in FIGURE 1 and showing the operating and locking mechanism for the sashes, which are shown in closed and locked positions;

FIGURE 3 is a sectional view of the window operating and locking mechanism looking substantially alOng the line 3-3 in FIGURE 2;

FIGURE 4 is an enlarged fragmentary sectional view of the window operating mechanism of this invention taken along the line 4-4 in FIGURE 3;

ice

FiGURES 5, 6 and 7 are enlarged fragmentary transverse sectional views of the window operating mechanism looking along the lines 5-5, 6-6 and 7-7, respectively, in FIGURE 2;

FIGURE 8 is an enlarged fragmentary sectional view,

tically extending row must be manually opened and closed and provided with a separate locking mechanism;

FIGURE 10 is a sectional view of the window mechanism shown in FIGURE 9 as seen along the line 10-10 in FIGURE 9;

FIGURE 11 is a foreshortened enlarged sectional view of the window shown in FIGURE 9 looking substantially along the line 11-11 in FIGURE 9; and

FIGURES 12 and 13 are transverse sectional views of the Window mechanism shown in FIGURE 10 looking substantially along the lines 12-12 and 13-13, respectively, in FIGURE 10.

With reference to the drawing, a window provided with the operating and locking mechanism of this invention, indicated generally at 10, is illustrated in FIGURE 1 as including left and right side frame members 12 and 14,

respectively, connected at their upper ends by a header 16 and at their lower ends by a sill 18 to form a generally rectangular relatively rigid frame adapted to be secured Within an opening in a building wall or the like. The frame may be of any rigid material, aluminum being preferred at the present time. A plurality of sashes, illustrated as being two in number, and consisting of an upper sash 20 and a lower sash 22 are swingably mounted within the frame for operation by means of mechanism illustrated in FIGURES 2-8, inclusive. The sashes 20 and 22 may be of wood or metal, as desired, the showing of metal sashes herein being illustrative only and not limiting. Glass or other material 24 is secured within the sashes 2t) and 22 by any conventional means.

The operating mechanism for the sashes Ml and 22 is essentially the same on both sides of the Window except for an operator 26 which is installed at only one side of the window either left or right, as preferred. The operator 26 is illustrated on the right side of the window and the entire operating mechanism will be described in connection with the tight frame member 14, it being understood that substantially identical mechanism is provided in the left hand frame member 12. g

The side frame member 14 (FIGS. 5, 6 and 7) is of a channel-shape having opposite legs 23 and 30 of unequal length. The shorter leg 30 is on the inner or sash side of the frame member 14 and includes a projecting flange 32 which carries an outwardly facing resilient gasket 34, commonly referred to as weather stripping for weather sealing the sashes 2.0 and 22. The gasket 34 may be of any resilient material such as rubber or a resin, and may be attached to the flange 32 by any desired means, such as the lock channel 36 shown. The outer leg 28 of the side frame member 14 is secured by any suitable means,

'nected at its terminal end by a pivot pin 46' to an clongated actuating or Connecting bar 48 which is slidably mounted on the side frame member 14. A plurality of brackets 50 (FIGS. 4 and 6) are secured to the side frame member 14 by screws 52 and are formed with guideways v or undercut grooves 54 provided at their outer sides with spaced inwardly directed flanges 56. The actuating bar 48 is slidably mounted in the guideways 54 and is formed with longitudinally extending shoulders 58 which are engaged by the retaining flanges 56 to retain the actuating bar 48 in a slidably mounted position on the side frame member 14.

A guide roller 57 rotatably mounted on the side frame member 14 engages one side of the bar 48 adjacent the upper end thereof. Adjacent its lower end, the actuating bar 48 is pivotally connected by a pin 49 to one end of a link 59 that is formed adjacent its opposite end with a dog leg section 60 which is pivotally connected by a pin- 62 to the outer end of an arm 64. At its inner end the arm 64 is secured to one end of a torque tube 66 that extends parallel to the sill 18 and is journaled on bearings 69, only one of which is shown, within the sill 18.

A pivot pin 68 extends through the link 59, adjacent the dog leg section 60 for pivotally connecting the outer end of a 'crank arm 70 to the link 59. The crank arm 70 is mounted on a fixed pivot 72 carried by a housing 73 secured to the inside of the frame member 14 and may be operable by any desired means such as the conventional operator assembly 26 illustrated. This assembly includes a hand crank or handle 74 projecting from the housing 73 toward the interior of the building in which the window is mounted. The hand crank 74 is attached to a worm 76 in the housing 73 to drive a gear segment 78 which is attached to and preferably formed integral with the crank arm 70. The crank arm70 may thus be swung on operation of the hand crank 74 through approximately a right 4 angle, as shown in FIGURE 8, to pivot the link '59 so as to impart a substantially rectilinear motion to the actuating bar 48. V

A balance arm 80 is provided for each of the beams 38 and is connected at its upper end by a pivot pin 82 to the terminal end of the beam end portion 40. The opposite end 84 of each balance arm 80 is movably mounted on the leg 30 of the frame side member 14 as shown in FIGURE 7 in a manner to be presently described.

Y IA. pivot member 86 is secured by a bolt 87 (FIG. 7) to the'leg 30 and is positioned in an open endedslot 88 (FIG. 4). formed in the lower end84 of the balance arm 80. A latch member 90 of irregular shape and formed with a hook-shape portion 92 is pivotally supported on the pivot member 86 for up and down swinging movement between an upper position illustrated in FIGURE 8 and a lower position shown in FIGURE 4. A spring 94, supported on a projection 96 formed on the latch member 90 is engaged at one of its'ends with the frame side member 14 so as to urge the latch member 90 toward the upper position shown in FIGURES.

A cam pin 98 carried by the balance arm 80 projects through a follower slot 100 in the latch member 90 for coordinating the movement of the latch member 90 and the balance arm 80. The follower slot 100' has two angularly related portions 102 and 104. The portion 182 is arcuate inshape lying on an arc extending about the pin 86 as a center and the portion 104 is substantially straight. When the sash is in an open position the pin 98 is in the portion 102 (FIG. 8) while when the sash is closed the pin 98 is located in the portion 104 (FIG. 4). r

In the operation of the Window operating and locking mechanism of this invention, assume that sashes 20 and 22 are in the closed positions illustrated in FIGURE 2, in which a flange 101 on the lower end of the upper sash 20 overlaps the upper end of the lower sash 22, and a flange 103 at the lower end of the lower sash 22 overlaps the sill 18. In this position of the sashes, the latching members90 are in their downwardly moved positions in which the hook-shaped portions 92 thereof are hooked over corresponding latch pins 108 carried by the sashes and projected transversely outwardly therefrom. Conse quently, the sashes 20 and 22 are positively locked in the closed positions shown.

When the operator mechanism 26 is actuated to swing the arm 70 outwardly and'downwardly, the link 59 is also moved outwardly and downwardly to in turn pull the actuating bar 48 downwardly. The arm 64 adjacent the arm 70 is also swung outwardly and downwardly, by virtue of its connection to the link 59, to rotate the torque tube 66 and provide for a concurrent actuation of the mechanism mounted on the side frame member 12. Downward movement of the actuating bar 48 moves each of the beams 38 downwardly so as to move the sashes 20 and 22 and the balance arms 80 downwardly, the slot 88 moving downwardly on the pivot 86, to in turn move the cam pins 98 downwardly in the follower slots 100 therefor to the juncture of the slot portions 102 and 104. In this position of the pins 98, the latching members 90 are swung clockwise about their pivots '86 by the action of the springs 94, in adirection away from engagement with pins 108 which have been moved downwardly with the sashes 20 and 22.

Each of the latching members 90 is moved to the position illustrated in FIGURE 8 in which hook portion 92 is out of the path of the associated latch pin 108 so that the sashes 20 and 22 are no longer locked in their closed positions. I Further movement of the actuating bar 48 downwardly swings the beams 38 in a direction to pivot the sashes 20 and 22 outwardly about the pivots 82 which also move outwardly until the sashes are in their full open positions shown in broken lines in FIGURE 8. The

sashes can be moved to any intermediate closed position by limiting the extent of swinging movement of the arm 70. The balance arms 80 follow the beams 38 by virtue of their connection to the beams although it is to be understood that the balance arms can be connected directly to the sashes, and the support of the balancearms 80 at their lower ends 84 on the pivots 86 on the frame side members provides for a bracing of the sash on the frame side members.

When the sashes 20 and 22 are to be moved to their closed positions shown in FIGURE 2, the operator 26 is actuated in a reverse direction to swing the crank arm 70 upwardly toward its substantially vertical position shown in FIGURE 2. Duling such movement, the link 59 is pivoted upwardly to move the actuating bar 48 upends of the beams 38 upwardly and swing the sashes i 20 and 22 downwardly and inwardly toward substantially vertical closed positions. The connection of the links 59 at the opposite sides of the sashes by means of the arms 64 and torque tube 66 provides for a concurrent and coordinated'rnovement of the actuating bars 48 at opposite sides of the window. When the crank arm 70 has been moved to a position just short of its final ventical position,- as illustrated in FIGURE 8, the cam pin 98 has been moved' to a position adjacent thejuncture of the cam slot portions 102 and 104 so that the latch member 90 is functioning to prevent premature upward movement of the balance arm which would force the latch member into a latching position before the associated pin 108 is in the desired position for latching. In other words, the balance arm 80 may tend to move upwardly while it is being swung inwardly by the beam 38 to which it is connected and the spring 94 is of sufficient strength to prevent this since it is important that downward swinging movement of the latch member 90 be withheld until the latch pin 108 therefor has been moved to a position in substantially vertical alignment with its final latching position.

The sashes 20 and 22 are in substantially fully closed positions in that their lower end flanges 101 and 103 are against the frame side members 12 and 14, as shown for the flange 103 in FIGURE 8 which is against the sill 18. Consequently, the latch pins 108 are behind the hook portions 92 of the latching members 90 as shown in FIG- URE 8. As a result, during final movement of the crank arm 70 from a position in FIGURE 8 to the position shown in FIGURE 2, the sashes 20 and 22 are moved upwardly by the actuating bar 48 to move the latch pins 108 upwardly towards the latch members 90. Commrently, the balance arms 80 are moved upwardly, the slots 34 moving upwardly relative to the pins 86, so that the cam pins 98 are moved upwardly in the slot portions 104 so that they bear against'the latch members 90 and act against the springs 94 to urge the latch members 90 downwardly in a counterclockwise direction about pivots 86 toward the latch pins 108. It can thus be seen that the final upward movement of the actuating bar 48 is utilized to move each latch member 90 and its associated latch pin 108 toward each other into latching engagement as shown in FIGURE 2. The lower end of each hook portion 92 is beveled as shown at 110 to insure a movement of the latch pin 108 behind the hook portion 2.

In the structure shown in FIGURES 9 to 13, inclusive, the sashes 20 and 22 are associated with a modified form of the operating and locking mechanism described above in connection with FIGURES l to 8, inclusive. In the form of the mechanism shown in FIGURES 9-13, many of the parts of the mechanism correspond substantial ly to parts of the mechanism in FIGURES l-S, previously described, and, accordingly, like numerals are used in FIGURES 9-13 to indicate like parts in the mechanism described above. Consequently, only the portions of the mechanism in FIGURES 9- 13 which are changed relative to the mechanism previously described will be hereinafter described in detail.

The primary difference between the mechanism shown in FIGURES 9-l3 and the mechanism previously described relates to the structure for moving the sashes 20 and 22 between open and closed positions. In the form of the mechanism shown in FIGURES l-S, the operator 26 is utilized to swing the sashes 20 and 22 between their open and closed positions, while in the mechanism illustrated in FIGURES 9-13, the sash 24 must be manually moved between its open and closed positions and locked by any suitable lock (not shown) mounted on the window frame and operable from inside the building.

In the modified mechanism only the portion of the mechanism on one side of the window frame is described in detail, it being understood that a corresponding opposite hand portion is also on the other side. Each of the sashes 20 and 22 is mounted on a pair of beams 38, which are connected at their upper end by pivots 46 to an actuating or connecting bar 48a and are pivotally connected adjacent their opposite ends by pivots 82 to the upper ends of balance arms 80. The lower ends of the arms 80 for the sash 20 are provided with slots 84 mounted on pivots 86 carried by the window frame member 1411. The lower ends of the balance arms 80 for the lower sash 22 are not slotted and are mounted on pivots 86:: carried by the frame member 14a.

A latch member 90 is mounted on each of the pivots 86 for the upper sash 20 only and each latch member 90 is associated with a latch pin 108 on the sash 20. The frame side member 14a is somewhat different than the channelshaped frame member 14 previously described in that it is more of an angle-shape and includes only a single side leg 28a. The connecting or actuating bar 48a is mounted on the frame side member 14a by a plurality of vertically spaced brackets [120, each of which is secured to the side member 14a by screws 122. Each bracket 120 includes a laterally offset portion 124 which overlies the connecting bar 48a so that it is confined between the bracket portions 124 and the frame side leg 28a. A channel-shaped slide member 126 formed of a material having low frictional characteristics, such as nylon, is positioned between each bracket offset portion 124 and the connecting bar 48a to facilitate up and down sliding movement of the connecting bar 48a on the frame side member 14a. The pivot member 86 on which the latch member 90 is rotatably supported, is secured to one of the brackets and projects inwardly toward the sash 20.

The operation of the modified mechanism is similar to the operation of the mechanism shown in FIGURES 1-8 which has previously been described, differing only in that the lower sash 22 must be manually swung outwardly and inwardly to open and close both the sashes 20 and 22. On outward swinging movement of the lower sash 22, the pivotal movement of the beam 38 thereon moves the connecting bar 48a downwardly to in turn move the upper sash 20 downwardly so that the cam pin 98 is moved downwardly in the slot 100. The latching member 90 is thus released so that it is moved upwardly by its spring 94 away from the latch pin 108, which has moved downwardly with the sash 20. The friction in the mechanism is utilized for holding the sashes 20 and 22 in their open positions. I

On manual closing movement of the lower sash 22, the pin 10 8 is first moved to a position below the hook portion 92 of the latch member 94 so that the final upward movement of the sash 20 is utilized for moving the latch member 9a downwardly and the latch pin 108 upwardly into latching positions.

It will be understood that the specific construction of the improved operating and locking mechanism for awning type windows which is herein disclosed and described is presented for purposes of explanation and illustration and is not intended to indicate limits of the invention, the scope of which is defined by the following claims.

What is claimed is:

1. In an awning type window which includes a frame, a sash mounted for swinging travel between open and closed positions relative to said frame about a movable horizontal axis, said sash being supported on a balance arm pivotally attached at one end to said frame and at its other end to said sash, a beam secured to said sash, an actuating member connected to said beam for moving the beam to swing said sash between said positions relative to said frame, means mounting said actuating member on said frame for substantially vertical movement so that in a closed position of said sash said actuating member is movable substantially vertically to in turn move said sash vertically, a latch member rotatably mounted on said frame and having a hook portion, a latching projection fixedly mounted on said sash, and means responsive to said vertical movement of said actuating member in a substantially closed position of said sash for rotating said latching member into a position in which the hook portion thereof is hooked over said latching projection, said means including spring means extending between said frame and said latch member biasing said latch member in a direction away from said hooked position and coacting means on said balance arm and said latching member for moving the latching member in an opposite direction when said actuating member is moved vertically in said substantially closed position of said sash.

2. In an awning type window comprising a frame, a sash mounted for swinging travel into and out of said frame about a moving horizontal axis, said sash being supported upon a balance arm pivotally attached at one end to said frame, an actuating bar mounted on said frame for up and down. movement and pivotally con.- nected to a beam secured to said sash for moving said beam so as to swing said sash into and out Of said frame, a latch member pivotally mounted on said frame for up and down swinging movement, spring means extending between said frame and said latch member urging the latch member upwardly, a latch pin'mounted on said sash for ,7

movement into latching engagement with said latch member on downward swinging thereof, and means on said balancearm engaged with said latch member during a final upward movement of said actuating member to swing said sash into said opening for swinging said latch member downwardly toward said latch pin. I

References Cited in the file of this patent UNITED STATES PATENTS

Images