US1480118A - Window-operating device - Google Patents

Description

HAMM 11% Jema 8, 1924.

VU. il. RUSSELL WINDOW OFBRAT I NG DEVI CE Filed Sept. 23 1921 2 Sheets-Sheet l 1.921 2 Sheets-Sheet 2 ilan., 8 1924.

W. N. RUSSELL WINDOW OPERATING DEVICE Filed Sept. 25,

Patented Jan. 8, 1924.

UNITED STATES PATEINT oFFcE wmDow-OPERATING nEvIcE.

Application flled September 23, 1921.

T o all wiz om it may concern:

Be it known that I, lVLLiAM N. Russian., a citizen of the United States, residino' in New Haven, county of New l'laven. tate of Connecticut, have invented certain new and useful Iinprovements in Window-Operating Devices, of which the followingiis a full, clear, and exact description.

This invention relates to window operating devices, and more particularly to such devices as are adapted to be applied to windows which are lowered or dropped into chambers or pockets when it is desired 'to open them and raised when it is desired to close them, although other applications of the novel features of my invention will be apparent to those skilled in the art.

While my invention relates particularly to a device for operating windows of automobiles and other moving vehicles, it is not necessarily limited thereto in all of its aspects, but is capable of application in other connections.

One object of my invention is to provide a mechanism for the purpose described which shall be simple and economical in construction and capable of convenient operation.

Another object of my invention is to provide a window operating mechanism which :io shall be mounted on a frame and easily applied to the window frame in operative position.

Another object of my invention is to provide a device of this character which sha-ll have means for locking the window in a predeterinined raised position and preventing further movement of the operating means.

A still further object o-f my invention is to provide a device of this character with means automatically locking the window in any desired position of adjustment.

F urther objects of my invention are to provide a window operating device with means to counterbalance the weight of the window to retard the lowering thereof; means to adjust the counterbalancing effect of said retarding means and to provide an automatic chain tensioning device which shall prevent any noise or rattle which might ;39 be due to looseness of the operating chain.

To these and other ends the invention consists in the novel features and combinations Serial No. 502,717.

of .parts to be hereinafter described and i claimed.

In the' accompanying drawings:

Fig. 1 is an inside elevational View of the door of a closed vehicle such as a sedan with niy improved Window operating device applied thereto;

Fig. 2 is an enlarged elevational View of the operating mechanism of my device shown from the side opposite that shown in Fig. 1;

Fig, 3 is a side elevational view of Fig. 2;

Fig. 4 is a Sectional view on lined-4 of Fig. 3;

Fig. 5 is a detail view of the means for retaining the window in any desired position of adjustment; i

Fig. 6 is a Sectional View on line 6-6 of Fig. 5;

Fig. 7 is an enlarged detail View of the device for locking the window in raised position;

Figs. 8 and 9 are Sectional views on lines 8-8 and 9-9 respectively of Fig. 2; and

Fig. 10 is an enlarged detail view of the connection between the window and the operating chain. I

I have chosen to illustrate my invention as applied to the door or window of a closed vehicle, the frame of which is shown at 10 and the movable window-pano at 11. A suitable chamber or the like is provided in the lower part of the frame in which the window-pane may be lowered when it is desired to open the same. The interior frame cover 12 is broken away so as to show my mechanism applied to the window in operative position.

A channel member 13 is secured to the lower part of the window-pane and is provided with two or more headed pins 14: which are adapted to be received in L-shaped slots 15 in a plate 16, which in turn is connected to the operating chain in a manner to be described hereinafter. A pivoted catch 17 is provided upon the plate 16, which may be swung over` in the position shown in Fig. 7 after the pins have been received in the ends of the slots 15 to prevent their disengagement from these slots. It will be apparent that when it is desired to disconnect the window from the chain, this may be readily done by merely swinging the catch 17 about its pivot and removing the plate 16 from this engagement with the pins..

This plate 16 is connected to the operating chain 18 by being provided with a slot 19 in which is received a in or stud 20, connected to the chain. Vashers 21 and 22 surround this1 stud upon each side of the plate 16 and are urged toward a collar 23 upon the stud by a spring 24 to efieetively prevent any rattling of the parts. This stud 20 is secured to a lnk or plate 25 which is riveted to a link of the chain at each end.

The frame upon which the operating mechanism of my device is 'mounted consists of upper and lower supporting plates 26 and 27 connected by a beam 28. It will be noted that the beam 28 is slightly inclined to the vertical when in operative position, so that the run of the chain which is connected to the window elevating plate 16 will travel in a substantially vertical path. The chain 18 is trained around upper and vlower sprockets 29 and 30. The lower sprocket is mounted upon a stud shaft 31 secured to a plate 32 slidably mounted upon the beam 28 by means of side fianges 33 engaging the sides of the beam and slots 34 in the plate which receive the pins 35 mounted upon the beam. A small cross-head 36 is secured to the plate 32 at' the upper portion thereof and is engaged by the ends of a spring 37 wound about a pin 38 secured to the beam. It will be seen that the pressure of this spring upon the cross-head 36 will urge the plate 32 downwardly and hence keep the chain tightly drawn. The length of the slots 34 will, of course, limit the movement of the sprocket wheel and its mounting plate relative to the supporting frame. he upper sprocket wheel 30 is secured to a shaft 39 rotatably mounted in the front plate 26 and an opposing plate 40 parallel thereto and spaced therefrom. These plates are connected by a plurality of screws or the like 41 surrounded by spacing collars 42. The plate 40 is somewhat narrower than the plate 26, as clearly shown in Fig. 2, so that the pin 20 may pass the edge thereof in its movement. Near the upper end of the same adjacent the periphery of the sprocket 30, the plate is provided with a curved portion corresponding to the periphery of the wheel which terminates in a recess 43 in which the plate 25 is adapted to seat when the window has been raised to its uppermost or closed position. llt will be seen that when the window reaches its highest position continued movement of the chain will carry the pin 20 horizontally across the slot-from left to right, as shown in Fig. 7, the plate 25 at this time riding upon the curved upper surface of the plate 40. When the plate 25 reaches the recess 43, the movement of the chain will be stopped and any accidental movement in the opposite direction tending to lower the window will be prevented by the shape of the rcess 43 and the adjacent portion of the ate. p The slaft 39 has secured thereto a gear 44 which mesles with a second gear 45 mounted upon a shaft 46, which in turn is rotatably supported in the two plates 26 and 40 and is adapted to be turned by suitable operating means such as a crank 47.

It will be apparent that the weight of the window will tend to work against the raising force and will, when the window is being lowered tend to cause the crank to revolve more rapidly than is desirable. ft is, therefore, highly desirable to provide some means to counterbalance the weight of the window and retard the lowering thereof, bw to so arrange this means that it will be rendered inoperative to retard the raising movement of the window. T have solved this problem by providing a split ring or collar 48 which surrounds a collar 49 secured upon the shaft 39 and has extended ends 50 which are adapted to be pressed together to clamp this ring about the collar to act as a brake upon the movement of the shaft and sprocket 30. The ends 50 of this ring are received'in a V-shaped recess 51 formed in the end of a member 52 pivoted at 53 upon the supporting plate 26. A spring 54 is adapted to urge this member in a counterclockwise direction, as shown in Fig. 4. It will be apparent that when the shaft 39 and collar 49 secured thereto are moved in a clockwise direction, as shown in Fig. 4, the ends 50 of the ring and the member 52 will be moved toward a line joining the pivot 53 and the shaft 39 and hence the ends 50 will be forced farther within thevV-shaped recess 51. This will cause the two arms 50 to be drawn together and the ring 48 clamped frictionally about the collar 49 to retard the movement of the shaft. This is so arranged that this movement will take place upon the lowering of the window and hence the retarding action thereupon will be obtained. When the shaft 39 is turned in the opposite direction, it will tend to throw the ends 50 and the member 52 away from the line joining the pivots about which these two members may move and hence the braking action will not obtain upon the raising of the window.

It will be obvious that the amount of frietion that may be obtained in this manner will depend upon the movement in a counterclockwise direction. as shown in Fig. 4, which is permitted the member 52 about the pivot 53. Tn order that this frictional force may be adjusted or regulated to a desired extent, T have provided a cam-shaped member 55 secured to a screw 56 mounted in the plates 26 and 40. A coil spring 57 presses against the cam 55 and maintains it against the plate 26 and in the same plane with the iit.)

gage the latter. By rotating the screw 56 and thereby Positioning different parts of the cam toward the member 52, I may regulate the movement permitted this member and hence adjust the-frictional force which is applied to retard the lowering of the window.

I have also provided a novel means for maintaining the window in any desired adjusted position and for the automatic control of said maintaining means by the manipulation of the operating device to raise and lower the windows. To this endthree disks 58. 59 and 60 are secured together and loosely mounted upon the shaft 46. Between two of these disks 58 and 59 is secured the gear heretofore referred to. Between the disks 59 and 60 is pivotally mounted at 61 a pawl 62 having an arm 63 extending substantially radially therefroni toward the shaft 46 and a second arm 64 extending substantially circumferentially of the disk 60 and provided at its end with a laterally extending finger 65 adapted to engage in the notches formed in the circumference of a disk 66 secured to the plate 26 and lying closely adjacent the disk 60. The latter disk is provided with a clearance recess 67 which permits the finger 65 to drop in the appropriate notch. The pawl 62 is also provided with a recess 68 which receives one end 69 of a bell crank pivoted at 70, the other end 71' of which extends inwardly from the pivotal point toward the sha'ft 46. A finger 72 is secured to the sha ft to extend between the two members 63 and 71. so that upon the rotation of the shaft 46 in one direction, the finger will engage the end 71.0f the bell crank and upon the rotation of the shaft in the opposite direction. the end 63 of the pawl will be engaged by this finger. It will be apparent that whichever one of these members is so engaged will be rotated to a certain extent about its pivot. If the shaft 46 is turned in the direction to engage the finger 63 by the member 72. it will be aparent that the pawl 65 will be moved to its dotted line position. shown in Fig. 5, so as to clear the notched disk 66 and permit the rotation of the three disks 58, 59 and 60 and the gear 45 secured thereto. A stop pin 73 is mounted upon the disk 60 to engage the end 63 of the pawl after it has been removed from engagement with the notcheddisk and prevent further relative movement between it and the disk 60. Continued rotation of the shaft 46 will, therefore, by contact of the finger 72 and the member 63 cause the disks and gear 45 to be rotated with the shaft.

If the shaft 46 is turned in the opposite direction, the finger 72 contacts with the end 71 of the bell crank and by reason of the engagement of the opposite end 69 of this member in the recess 68 again swings the pawl 62 in a counterclockwise direction pawl is first disengaged from the notch in the disk 66 and thereafter the rotation of the sha-ft .causes the disks and' the gear 45 to rotate therewith. A spring 74 normally urges the pawl 62 in a clockwise direction` as shown in Fig. 5. about the pivot 61, so that the finger 65 is normally maintained in engagement with one of 'the notches in the disk 66.

The operation of my device is as follows: VVhen the window is in closed or in raised position, the plate 25 is received in the re.- cess 43 in the frame plate 40 and the Window is thereby held against an accidentally lowering movement. This sustaining means is. of course. in addition to and independent of the pawl 62 and notched disk 66 which is designed to hold the window in any adjusted position between the highest and lowest positions of the window. VVhen the crank 47 is turned in the proper direction to lower the window, the plate 25, together with the pin 20 and the plate 16 connected to the window-pane is carried downwardly b v the chain. the action being retarded by the frictional engagement of the split ring 48 with the shaft 39. If the amount of friction applied is insuflicient. the pawl 55 may be adjusted from its full lined position. shown in Fig. 4. to the dotted lined. position shown in that figure, which allows the members 50 and 52 to straighten out between their pivotal points and causes a tighter clamning of the split ring about the shaft. When the window has been lowered to the desired position and. the rotation of the crank 47 and shaft 46 ceases. the pawl 62 is moved about. its pivot 61 by the spring 74 and the finger 65 engages in one of the notches in the disk 66 to retain the window in its adjusted position. These notches may be set as close together as practical in the disk 66. so that any desired degree of adjustment may be obtained. VVhen the crank 47 is turned in the opposite direction to raise the Window, the finger 65 of the pawl will be disengaged from the disk 66, as heretofore described, and as the fingers 50- of the split ring 48 will be bent to be moved in a counterclockwise direction in Fig. 4, thus bringing them toward the wider part of the V-shaped opening 51 and there will be practically no frictional engagement between this ring and the shaft 39 to retard the raising of the Window. The window may, of course, be raised to any desired position and retained therein by the engagement ofthe pawl 62 'and the notched disk '66, or may be fully closed and retained in its uppermost position by the engagement of the plate 25 in the recess 4:3.

VVhile If have illustrated and described the preferred embodiments of my invention, it will be apparent that it is not limited to the exact details shown, but is capable of many n'odifications and variations which lie within the spirit of the invention and Within the scope of the appended claims.

`What I claim is:

1. A window raising and lowering device including a rotating shaft, a split ring embracing said shaft and being adapted to frictionally engage the same, said ring having its ends free to be drawnvtogether to bring about such engagement, and means for drawing said ends together upon the rotation of said shaft.

2. A window raising and loweringdevice including arotating shaft, a split ring embracing said shaft and being adapted to frictionally engage the same, said ring having' its ends free to be drawn together to bring about such engagement, and means for drawing said ends together upon the rotation of said shaft in one direction, and to relieve said engagement upon the rotation of the shaft in the other direction.

3. A window raising and lowering clevice including a rotatab-le shaft, a split ring embracing said shaft and having its ends adapted to be drawn together to engage the same to retard the operation thereof, and a resiliently urged member co-operating with the ends of said ring to bring about such frictional engagement during the lowering operation. v

4. A window raising and lowering device including a rotatable shaft, a split ring embracing said shaft and having its ends adapted to be drawn together to cause the ring to frictionally engage the shaft, a pivoted member having a IV shape recess, in which the ends of said ring are received, and means to limit the movement of said member.

5. A window raising and lowering device nasama including a rotatable aft, a split -ing emvbracing said shaft and having its ends adapted to be drawn'together to cause the ring to frictonally engage the shaft, a pivoted member havng a V shape recess, in which the ends of said ring are received, resilient means to retain said member in engagement with the ends of said ring, and means to limit the movement of said member, and means to vary the action of said limiting means.

7. A Window elevating device having raising and lowering means including ar rotatable shaft, a member loosely mounted upon the shaft, a pawll pivoted on said member, means on said shaft to engage the pawl when the shaft is rotated in one direction and a awl operating member in engagement with the pawl and mounted in position to be actuated by said shaft when the latter is rotated in the opposite direction.

8. In a device of the character described, window raising and lowering means, including a rotatable shaft, a member loosely mounted thereon, being adapted to rotate when the window is moved, a pawl pivoted on said member and adapted to retain it and the window in a predetermined position,

a second pawlpivoted on said member andl engaging the first mentioned awl, an arm secured to said shaft and a apted to engage one of said pawls when the shaft is rotated in either direction to first disengage said retaining pawl, and thereafter rotate said. member to move the window, and a spring to urge said retaining pawl to operative position. In witness whereof li have hereunto set my hand this 21st day of Se tember, 1921. I W I LIAM N. USSELL.

Images