US1628672A - Clutch for window regulators - Google Patents

Description

1,628,672 P. J. KuRsHElD-r E1- AL.

'CLUTCH Fon wINDow REGULAToRs' original Filed April '29; 1922 2 Sheets-Sheet 1 ATTJORNEY s vMay 17, 1927./ 1,628,672

' i -P. J. KURSCHEIDT ET AL CLQTGH FOR WINDOW HEGULATORS originan Fild April 29 1922 2 sheets-.sheet 2 lIglllll il ATTORNEY Cil Patented May 17, 1927.

UNITED STATES PATENT 0MB- PETER JOHN KURSCHEDT, OF WOODHAVEN, AND HARRY E. NORWOOD, OF BROOK- LYiv, NEW YORK.

CLUTCH FOR WINDOW REGULATORS.

Original application filed April 29, 1922, Serial No. 557,470. Divided and this application led April 28,`

1926. Serial No. 105,061.

Our invention relates to window regulators adapted to raise or lower a. window upon rotation in the proper direction of a rotatable crank or handle which is mounted on the device and operatively connected with y r simplicity of construction and of ease of operation, theinvention consisting in the novell parts and combinations thereof hereinafter more particularly described and then specified in the claims:

,ln the accompanying drawing illustrating a. practical embodiment of the invention Fig, l, is a front elevation of the Window regulator. 'f

Fig. 2 is a frontelevation of the upper portion of the device on the line 2--2 of Fig. 3.

Fig. 3 is a section taken through the upper portion of the device.

llig. is a side elevation of the crank shaft.

Fig. 5 is an end View thereof.

Fig. (l is a front elevation of the clutch driving member.

Fig. 7 is a front elevation of thedriven member.

Referring in detail to the several figures the. lower part of which is indicated at 2.`

3 indicates a. plate which is mounted on and secured to the lower part 2 in any desirable manner while 4 indicates a cover plate which is screwed to said plate by suitable screws 5 and which forms with said plate 3 a housing containing a clutch and other mechanism to loe presently described. A vertical depending bar or strap 6 is fastened at its upper end to the plate 3 and at its lower end to a cross-bar 7 which is detachably secured to the side walls of other parts of the window well.

An endlessdriving chain 27 passes over an upper sprocket 28. which is mounted on the plate 3 and a lower sprocket 2O supported on the bar 6. The chain 27 is connected to the window l by means of a roller stud 29 engaging in a slot of a plate 30 which is secured to and depends from the lower side of the window. a housingk and connected with mechanism within said housing formed by the cover plate 4 and plate 3 whereby rotation of said handle willrotate the upper sprocket 28, thereby causingl the chain 27 to travel around the upper and lower sprockets thus effecting a raising and lowering of the window de" pending on the direction of rotation given the handle.

32 indicates a crank shaft which isv provided with hub portions 33 and 34 rotatably received `by an annular neck 35 pressed out from the plate l and a removable bearing 36, respectively, the bearing `being received and held within an opening in the plate 3 (see Fig. The handle or crank 3l is secured to the end of said shaft 32 in any desirable manner. The shaft is provided with a substantially rectangularly shaped drivingmember actuator 37 preferably integra-l therewith and having fiat sides and rounded endsand also end tlanges 38 slidably fitting intermediate the plate t and the driving member 42 referred to below. The flanges 38 act to prevent rocking or displacement of f the clutch parts.

The iixed clutch member 39 is provided with pins 40 extending through depressions in the plate 4L the ends of said pins being riveted over on said plate within said depressions, whereby the clutch member is securely held against movement. member is also provided with an enlarged opening 41 extending therethrough having a serrated or toothed inner edge as indicated.

The driving member of the clutch is indicated at d2 and is vprovided with outwardly pr jecting pins 43 and an opening 421 having an upper flat wall 414i, rounded side walls 44h and a lower wall 4:4 having a stop or cam surface 44d (see Fig. 6). The lower portion of the driving member is also provided with teeth 45 adapted to interfit with the teeth of the opening 4:1 of the fixed mem ber 39. The opening 44 is adapted to receive the actuator 37 on the shaft 32 and the opening el of the fixed clutch member 39 receives the driving member 42, the fixed clutch inem- A handle 3l is mounted on j Said clutchk ber and driving member 42 lying in the same plane. Then the handle or crank on the lshaft 32 is not being operated one of the fiat sides of the actuator 37 engages the `upper flat wall 44a of the openingl 44 while its curved ends engage the rounded side walls of said opening as shown in Fig. 2.

The driven member indicated at 46 is loosely carried on the shaft and comprises a fiat disk provided with slots 47 therein slidably receiving the pins 43 of the driving member 42. One of said slots carries a spring 43 bearing against one of the pins 43 and acts to retain the driving member 42 in the position shown in Fig. 2 with its teeth 45 in locked engagement with the teeth of the fixed member 39, whereby rotation of the shaft 32 will be prevented if rotation is attempted from the driven member 4.6 as will be readily understood.

The driven member 46 is provided with outwardly projecting` pins 49 entering and interfitting with suitable openings in a pinion 50 loosely mounted on the shaft, said pinion meshing with a large gear 51. lhen the crank or handle is rotated the element 37 takes the position shown in Fig. 6 or at right angles to said position depending on the direction of rotation4 of the crank or handle. As the element 37 may not completely rotate within the opening 44 it forces the driving member, against the action of the spring 48, to move in a direction whereby the teeth 45 will become disengaged from the teeth of the fixed member 39 after which the member 42 will rrotate with the shaft. Rotation of the shaft thus effects a rotation of the driven member 46 due to .the pins 43 engaging in the slots 4i'. When the driven member rotates the pinion and large gear 51 likewise rotate lbecause of the connection between these parts as hereinbefore described. lVhen the crank or handle is 'released the parts automatically lock as the spring 48 bearing against one of the pins 43 acts to move the driving member 42 into its first position whereby its teeth 45 will engage the teeth of the fixed member 39, the part 37 being also forced back into its normal position shown in Fig. 2. For all practical purposes the driven member 46 and pinion 50 may be considered one part, they being constructed of two parts merely for convenience of manufacture.

The gear 5l fixed to a shaft 532 provided with ay flange 53 acting as a stop to prevent a longitudinal movement ofthe gearthereon. One end of said shaft 52 is hollowed out as at 54, this end of the shaft being supported by a depressed support pressed inwardly from the metal of the plate 4 'and enteringthe hollowed out por" tion 54. The other end of the shaft is mounted in an annular neck 56 pressed out from the metal of the plate 3 and forming a bearing for said shaft, a bushing 57 being preferably interposed between said bearing and shaft. The plate 3 is also provided with an annular ridge or bead 53 pressed inwardly from the plate and acting as an anti-friction support slidably engaging the side of the gear 5l and adapted to vprevent rocking thereof. The end of the shaft 52 is reduced and receives the sprocket 23 which is rotatable therewith and which adapted to engage a shoulder 59 on the shaft to prevent va longitudinal movement of the sprocket thereon. The numeral 60 indicates a bolt extending through the shaft and which is provided with a head 61 re ceived by the recess 54. The opposite end of said bolt carries-a washer 62 adapted to prevent removal of the sprocket from the shaft. The plate 4 is provided with an inwardly extending lug 63 cut from the metal to which one end of a counterba'lancing spring 64 is secured or hooked, the other end of said spring being secured or hooked to a lug 65 on the gear 5l. .The spring is supported and prevented from spreading out-- wardly by additional lugs 66 on said gear and is prevented from too great an inward movement, which might tend to interfere with the rotation of the shaft-52, by a semicircularly shapedridge or head 67 pressed inwardly from the plate. The counter-balancing spring per se is old although in so far as we are aware the particular manner of mounting and holding the same in proper position as shown and described is new. The function of the spring is to assist in the raising of lthe window, the spring being wound up by the lowering of the window.

Referring now to the operation of the window controlling mechanism described herein it will be seen that when the parts are in a position of rest and no force is being applied to -the manual member 3l and shaft 32, the spring 48 will cause the movable locking element 42 to be moved into position to engage the teeth of the fixed clutch member 39. vWhen rotative force is applied to the operating shaft 32 the actuator 42 Vis moved away from the fixed clutch 39, the actuator' head 3T engaging against one of the side surfaces of the stop member 44d positioned at the ends of the arcuate surfaces 44". Further rotation of the operating shaft causes the driving member or movable clutch member 42, the operated member 46, and gears 59 and 5l to be actuated with the result that the roller stud 29 and window l are elevated or lowered dependent on the direction of rotation of the operator. yWhen the handle 31 is again released the spring 48 causes the movable clutch member 42v to be moved into locking` engagement with the teeth of the fixed clutch member 39.

This application is a division ofi'U. S. ap`

plication for Letters Patent for `window regulator, Ser. No. 557,470, filed Apr. 29, 1922.

Ve claim:

l. In a window regulator, a rotatable member, an actuator for said rotatable member including a manual handle and an actuating shaft, a non-rotatable clutch member, and a slidable locking member adapted for engagement with said clutch n'ieinber,l said locking member being automaticallyv moved to clutching position and being moved to non-clutching position by movement of said handle.

2. In a Window regulator, a rotatable member, means for rotating said rotatable member or locking it against rotation, said means including a manual operating shaft and a non-iotatable clutch member, a locking member surrounding said shaft and slidable relatively thereto into or out of engagement with said clutch member'7 a crank controlled by said operator and arranged to engage said locking meinberto move the same to non-clutching position.

3. In a window regulator, a rotatable member, means for rotating said rotatable member or lockingit against rotation, said means including a manual operating shaft, a non-rotatable clutch member, a locking member slidably arranged with respect to said operating shaft and having means for moving the saine into engagement with said clutch member, and means controlled by said manual operating shaft for `ii'ioving said locking member away from said clutch member.

4. In a window regulator, a rotatable member and means operatively connecting said member to said window, means for ro tat-ing said rotatable member, said means including a manual operating shaft, a fixed member, a locking member arranged for rotation vvith or for sliding movement with respect to said operating shaft, means tending to move said locking member outwardly with respect to said operating shaft into engagement with said fixed member, and means carried by said shaftoperating upon rotation of said shaft to withdraw said locking member.

5. In a Window regulator, a rotatable member and means operatively connecting said member to said window, means for rotating said rotatable member, said means including a crank shaft, a fixed clutch meinber, a springpressed locking member mounted for rotation With or with respect to said crankshaft and movable to position to engage said clutch member, `and a crank lformed on said crank shaft and arranged for limited pivotal movement with respect to said locking member for controlling the movements of the latter.

6.In a window regulator, a rotatable member and means operatively connecting ber mounted for rotation with orwith respect to saidy crank shaft and movable to position to engage said clutch member, and

a flanged crank formed on said'crank shaft and arranged for limited pivotal movement with respect to saidv locking member for controlling the movements of the latter, the f fianged portion of said crank fitting Within the recessed-portion of said locking member. 7. In a window regulator, a rotatable member and means operatively connecting said member to said WindoW,1neans for rotating said rotatable member, said means in-` cluding a manual operatingshaft, a fixed member, alocking member arranged forrotation with or sliding movement with respect to said operating shaft, a slotted` driven member associatedfwith said rotatable member for rotation therewith, a spring within the slot in said driven member and engaging said locking member to move the same outwardly with respect tov said operating shaft into' engagement with said fixed member, and means carried by said shaft operating upon rotation of said shaft to withdraw said locking member.

8. In a window regulator, a lower rotatable member, a housing, a shaft mounted on said housing, an upper rotatable member mounted on said shaft, a linear member extending over said rotatable members, for transmitting motion, a gear onsaid shaft, a crank shaft, a pinion loosely carried thereby meshing With said gear, a fixed clutch inember secured to said housing, a driving mei ber carried by said crank shaft and adapted to lock with said fixed member and a driven member engaging said pinion and connected to said driving member by a sliding engageinent-` f 9.In a window regulator, the combina tion with means for raising and lowering the window including atcrank shaft, a crank mounted thereon and' an actuator on said crank shaft, of a fixed clutchl member having a toothed opening, a driving member within said toothed opening having a tooth adapted to engage the teeth of said opening anc adapted to be rotated by the actuator on said crank shaft, a driven lmember slidably engaging said driving member and means associated with said vdriven member tending to move said driving member whereby its tooth will engage the teeth of said fixed member. y

l0. In a Window regulator, `the combination with means for raising and lowering the window including a crank shaft, a crank mounted thereon and an actuator on said Cil yadriving member' carried by said shaft and crank shaft, of a fixed clutch member provided with locking means thereon, a driving member supported by said actuator and provided with locking means adapted to engage said first-'named locking means, a driven member slldably connected to said driving Vmen'iber and spring means tendingk to move said driving member into position wherein the aforesaid locking means will engage each other. j

11.*In a Window regulator, the combination with means for raising and lowering the Window including a crank shaft, acrank mounted -thereon for rotating said shaft and an actuator carried by said shaft, of a fixed clutch member provided with locking means thereon, av dri-ving member vsupportedby said actuator, pins on said driving member, .a driven member having slots therein receiving said pins and a spring within one of said slots engaging one of said pins.

12. In a window regulator, the combination with means for raising and lowering the window including a crank shaft, of a fixed membei'provided with teeth thereon,

provided with inwardly projecting members having cam surfaces thereon, pins projecting from said fdriving member and a driven member provided Ywith slots adapted to receive said inwardly projecting members and pins and having fingers adapted to engage the teeth of said fixed member.

13. In a window regulator, the combination with mea-ns for raising and lowering the window including a crank shaft, of a fixed member provided. with teeth thereon, a driving member carried by said shaft and provided with inwardly projecting members having cam surfaces thereon, projecting means on said dri-ving member, a jdrivel'i member provided with slots adapted to receive said inwardly.projecting `members and having fingers adapted to engage the teeth of said fixed members, the sides kot said slots being adapted to ride against the cam surfaces of said projecting members upon rotation of said shaft whereby said projecting means will engage said sides to drive the driven member and spring means acting to fret-ain said fingers land teeth in engagement with each other.

14. A clutch for a window `actuator' comprising a manual operating member, a fixed clutch member, a movable clutch member and an operated member, said movable clutch member having a recess for receiving said manual operating member, the latter having an operating extension fitting within said recess and movable therein between predetermined limits for movin(jr said movable clutch member relatively to said fixed clutch member.

15. In combi-nation with a movable window, an actuating mechanism and clutch therefor comprising an operating shaft, a movable locking member and an operated member loosely mounted on saidv shaft, means for causing' said locking member and operated member to be rotated together, said means permitting bodily7 movement between said members, said movable locking member being provided with a plurality of recessed portions terminating in fixed stops, an actuating element supported fixedly upon said operating shaft and fitting within recess and movable between said fixed stops for controlling said movable locking member.

16. In a window regulator, an actuating mechanism ,and clutch therefor comprising an .operating shaft, a movable locking member `and a fixed looking member, said locking members having cooperating engagement portions, Vsaid movable locking element having La recess formed with a ktransverse wall and stop surfaces joined by arcuate portions, an actuating element secured to said operating shaft and positioned within said recess normally in engagement lengthwise with said transverse wall, the

end portions of said actuating element being capable of movement around said arcuate portions into engagement with said stop surfaces.

17. In a window actuating mechanism, an operating shaft, a fixed locking member surrounding said shaft and having inwardly extending locking teeth, an operated member, a movable locking member having means for engagement with the teeth on said fixed locking member and mounted for rotation with but for bodily movement with respect to said koperated member, an actuating element secured to said operating shaft and having lmeans for engagement with said movable locking member for withdrawing the `latter from engagement with the teeth on said fixed locking member by rotation of said 4operating shaft.

1S. In a window actuating mechanisln, an

operating shaft, a fixed locking member surrounding said shaft and having inwardly extending locking teeth, an operated meniber, a Imovable locking member having means for engagement with the teeth on said fixed locking member and mounted for rotation with but for bodily movement with respect to said operated member, an actuating element secured to said operating shaft and having means for engagement with said movable locking member for withdrawing the latter from engagement with the teeth on said fixed locking member by rota-v tion of said operating shaft and means for automatically moving said movable locking member into engagement with the teeth on said fixed locking member upon release of said operating shaft.

19. In a window actuating mechanism, an

operating shaft, a fixed locking member snrrounding said shaft and having inwardly extendingl locking teeth, an operated member, a movable looking member having means for engagement with the teeth on said fixed looking member and mounted for rotation with but tor bodily movement with respect to said operated members, an actuating element secured to said operating shaft and having means for engagement with said movable looking member for withdrawing the latter from engagement with the teethv on said Xed loekingmember by rotation of said operating'shaft and means for limiting relative rotation between said aetuating element and said movable operating member in both directions.

lSigned at New York in the county of New York and State of New York this 27th day of April A. D., 1926.

PETER JOHN KURSCHEIDT. HARRY E. NGRWOOD. v

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