US1754623A - Window-operating mechanism - Google Patents

Description

April l5, 1930. l P. s. GEUss 1,754,623

WINDOW OPERATING ME-CHANISM Filed.v June 22, 1928 Patented Apr. l5, 1930 PAUL` S. GE'U'SS, OF EASTON, PENNSYLVANIA WINDOW-OPERATING- MECHANISM implication mea Tune 22,

the above mentioned character wherein the window may be elevated to any desired point and will remain in such position.

A further object is to provide the application of lifting force to the window at points equidistantly spaced from the center thereof whereby the window readily may be raised and will be prevented from binding, as often occurs with the usual window 4constructions wherein the lifting force is applied to one side of the center thereof. H

A further object is to provide novel spring means tending to balance each other and the weight of the parts includingrthe window, whereby the operation of the device may be accomplished with little eifort, and whereby the window is adapted to remain in any adjusted position.

A further object is to provide novel lever means for operating the window, whereby the latter is, in effect, fixed against movement when in its uppermost position.

Other objects and advantages of the in-l vention will become apparent during the course of the following description.

In the drawings I have shown one embodi-4 ment ofthe invention. In this showing,

Figure 1 is an inside elevation of a vehicle door, parts being removed, and,

Figure 2 is a section substantially on line 22 of Figure 1, the latch casing of the door and associated elements being omitted.

Referring to the drawings, the numeral designates a vehicle door as a whole including inner and outer walls 11 and 12 respectively. The door further includes side Aframe mem- 1928. Serial N0. 287,556.

bers 13 and 14 respectively, and upper and lower frame members 15 and 16. A pair of braces 17 and 18 are connected between the side frame members, as shown.

The outer wall 12 extends throughout a portion of the height of the door to provide a sash opening 19 having a lower sill 20. A sash or window glass 21 is adapted to reciprocate in the sash opening in the usual manner, and is provided at its lower edge with a guideway 22 for a purpose to be described.

An operating lever 23 is pivotally connected to the brace 17 as at 24 and is providedat its upper end with an operating handle 25 movable in a slot 25 formed in the wall 11 concentric with the pivot 24. The lower end of this lever is pivotally connected by a pivot pin or bolt 26 to the upper end of a link'27, the latter being curved as shown in Figure 2 whereby its lower portion is arranged outk wardly of the brace 18 to permit its connection to other elements of the device to be described. A spring 28 is connectedv at its lower Vend to the bolt 26, and has its upper lend secured by a bolt or the like 29 to the casingv 30 of the usual latch mechanism of the door. This latch mechanism includes a latch 314 and an operating lever 32, and forms no part of the present invention. If desired, theupper end of the spring 28 may be secured to any n other suitable relativelystationary portion of the door. i

A link 33 ispivotally connected as at 34 to the lever 23 above the pivot thereof, and the lower end of the link 33 is pivotally connected as at 35`to the upper end of a lever 36. This lever is pivotally connected intermediate its ends as at 37 to a supporting plate 38 secured to the lower brace member 18. A lower link 39 is pivotally connected at its upper end as at 40 to the lower end of the lever 36. As will become apparent, the link 39 corresponds to the link 27, and the lower ends of these links move `equal distances upon operation of the lever 23. The 9 link 39 is curved similar to the link 27, as shown in Figure 2, to permit its connection to its associated elements which lie on opposite sides of the brace 18.

A pair of identical levers 41 and 42 pivotally connected as at 43 to the lowerbrace member 18. These levers are pivotally connected at their lower ends as at 44 to the lower ends of the links 39 and 27 respectively. A coil spring 45 has its ends connected to the pivot members 44 whereby the lower ends of the levers 41 and 42 are normally urged toward each other. A similar spring 46 is connected at its ends to the levers 41 and 42 above the pivot 43 to add its eli'ect to that of the spring 45 to move the upper ends of the associated levers toward each other.

Bolts or similar pivot members 47 connect the upper ends of the levers 41and 42 to the lower ends of links 48, the upper ends of these links 'bein pivotally connected as at 49 to levers 50. lle lower ends of these levers 50 are pivotally connected as at 51 to the upper .brace member 17, as shown in Figure 1, The levers 50 extend upwardly beyond the pivot pins 49 and are provided at their upper ends with rollers 52 adapted to travel in the guideway 2,2 as will become apparent. These rollers are spaced e uidistantly on opposite sides of the center o the lower edge of the window sash to exert equal lifting forces against opposite edges of the window.

The operation of the device is as follows:

`The motion of the handle 25 corresponds to that of the window 21, that is, the handle 25 is moved u wardly to raise the window and downwar ly to lower the latter. Assuming the parts to be in the position shown in Figure 1, the window will be in its uppermost position. If it is desired to lower the window, the operator will move the handle 25 downwardly, thus swinging the upper and lower ends of the lever 23 downwardly and upwardly respectively. Upward movement o the lower end of the lever 23 pulls the link 27 upwardly, thus elevating the lower end 0f the lever 41. Simultaneously with this action, downward movement of the upper end of lever 23 will move the link 33 downwardly to lower the upper end of the lever 36 and elevate the lower end thereof. This movement is transmitted through the link 3,9 to the lower end of the lever 42 to elevate the latter, and thus move the upper end of the lever 42 downwardly.

The lever arms of the various elements between the handle 25 and the pivot members 44 are so desi ed that movement of the handle will equi istantly move the lower ends of the levers 41 and 42. As previously stated, these levers are identical, and hence the upper ends of these levers will move through equal arcs u on a given movement of the handle 25. e levers 50 also are identical, and upon downward movement of the pivot pins 47 away from each other, the upper ends of the levers 50 will be swung downwardly and inwardly through equal arcs. Thus the rollers 52 will be maintained at the same level for all movements of the levers 50, and when movement is transmitted to these levers in the manner previously described, they will move downwardly, thus causing the window to be lowered.

Upward movement of the window is accomplished by a reversal of the actions just described. Upward movement of the handle 25 depresses the links 27 and 39 through their respective connections, thus moving the upper and lower ends of the levers 41 and 42 toward each other. This action causes the pivot bolts 49 to be elevated, together with the levers 50. The rollers 52 thus cause the window to be elevated. As previously stated, the rollers 52 are spaced equidistantly on opposite sides of the'center of the window glass 21, and thus equal movement will be transmitted to both sides of the window, and any binding action of the latter will be prevented.

The elimination of the binding action ree ferred to materially reduces the friction of the parts, thus reducing the force necessary to operate the window. This force is further reduced by the provision of the springs 28,

45 and 46, The latter two springs tend to move the upper and lower ends of the levers 41 and 42 toward each other to effect a lifting action against the window, and the tension of these springs preferably is slightly in excess of that necessary to overcome the weight of the parts. This excess in tension is balanced by the tension of the spring 2S which tends to move the window downwardly. Thus the various forces are perfectly'balanced, and the window will remain in any desired position.

When the window is in the fully elevated position, the parts will assume the positions shown in Figure 1, and it will be apparent that the links 48 are substantially in alinement with their respective levers 41 and 42, and thus it will be impossible to exert a ,suiiicient iorce against the window itself to move it downwardly. Accordingly when the vehicle is left standing with the doors locked, unauthorized persons will be prc. vented from gaining access to the interior of the vehicle through an attempt to force one of the windows downwardly.

It will be ap )arent that a single movement of the lever 23 1s adapted to move the window between extreme upper and lower positions, thus permitting the desired action to be readily accomplished. With the usual constructions employing an operating crank, it is necessary to rotate the crank through a number of revolutions to accomplish the same result.

It is to be understood that the form of the invention ,herewith shown and described is to. be taken as a preferred example of the same and that various changes in the shape, sitze and arrangement of parts may be resorted to without departing frQm the Spilof the invention or the scope of the subjoined claims.

l. A device of the character described comprising a pair of lever arms of equal length pivotally supported at their lower ends and having their upper ends adapted to support a vertically slidable window at spaced points along the lower edge thereof, a pair of levers pivotally supported intermediate their ends, means pivotally connecting one end of each lever of said pair to one of said lever arms, spring means connected at opposite ends to said pair of levers, and means for swinging the opposite ends of said pair of levers toward and away from each other.

2. A device constructed in accordance with claim 1 wherein said last named means comprises a swinging lever, and operating connections between said lever and the second mentioned ends of said pair of levers.

3. A device of the character described comprising a pair of lever arms of equal length pivotally supported at their lower ends and being inclined upwardly and inwardly toward their upper ends to support a vertically slidable window at spaced points along the lower edge thereof, a pair of levers supported to swing about a common axis intermediate their ends, a link pivotally connected at one end to the upper end of each of said pair of levers, the opposite ends of said links being pivotally connected to said lever arms, spring means tending to move said pair of levers toward each other to elevate the window, a single operating lever, and connections between said operating lever and the lower ends of said pair of levers.

4.. A device constructed in accordance with claim 3 wherein said connections comprise a link pivotally connected at one end to said operating lever to one side of the pivot thereof and at its oppositeend to the lower end of one lever of said pair, an intermediate lever pivotally supported intermediate its ends, a link pivotally connected at one end to one end of said intermediate lever and at its opposite end to said operating lever at the opposite side of the pivot thereof, and a link connected at one end to the lower end of the other lever of said pair and at its other end to the opposite end of said intermediate lever.

5. A device constructed in accordance with claim 3 wherein the tension of said spring means is slightly 1n excess of the weight of along the lower edge thereof, a pair of levers PAUL S. GEUSS.

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