Feb. 8, 1927. J. H. BOURGON WINDOW REGULATOR Filed June 28, 1923 Sheets-Sheet l INVENTOR VO5AA/ AyasoA6GO/y BY Ed
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Patented Feb. 8, 1927. UNITED STATES PATENT OFFICE. JOSEPH. H. BOURGON, of DETROIT, IVIICHIGAN, ASSIGNOR TO THE STUDEBAKER COR PORATION, OF SOUTH BEND, INDIANA, A CORPORATION OF NEW JERSEY. WINDOW. REGULATOR. Application filed June 28, 1923. Serial No. 648,364. This invention relates to a mechanism for cally Swinging arm 5. The arm 5 is fastened raising and lowering windows, such mecha- adjacent to its lower end to a segment 6 of a nism being commonly known as window Worm wheel, the segment 6 and the arm 5 regulators, and the object of my invention is being pivoted at 7, to a metal board 8 which 5 the provision of a mechanism of the character extends substantially across the full width 60 described which is simple and inexpensive in of the door 1 and forms a part thereof for its construction, is positive in operation, is strengthening the same and entirely support easily operated to raise or lower the asso ing the window regulator mechanism. ciated window, and is particularly adapted worm 9 formed on a vertical shaft 10 meshes 10 for use in connection with the type of win- with the Segment 6. The lower end of the 65 dows commonly used in closed automobiles shaft 10 may be journaled in a bracket 11 and other vehicles, which windows have low- which is secured by the screws 12 to the low ering movements when being opened. er flanged edge of the metal board 8. A ball The invention is fully described in the fol- thrust bearing 13 is also provided as a seat 15 lowing specification, and while, in its broad- for the shaft 6 to take the downward thrust 70 er aspect, it is capable of embodiment in nu- thereof, and a screw plug 14 threaded in the merous forms, a preferred embodiment there- backet 11 is to adjust the axial position of of is illustrated in the accompanying draw- the shaft 10. The upper end of the shaft 10 ings in which,-- may be reduced in size and is journaled in a Fig. 1 is an outer side elevation of the member 15, which also supports the horizon- 75 lower portion of an automobile door with tal shaft 6 and ball thrust bearing 17 held part of the sheathing broken away to show between the upper end of the vertical shaft the invention associated there with and also 10 and the horizontal shaft 16 to take the up showing the window in lowered position. ward thrust of the shaft 10. The member 15 25 Fig.2 is an enlarged fragmentary vertical may have a flange 18 which is adapted to 80 sectional view of the door shown in Fig. 1 bear against the inner surface of the metal with the window in raised position. board,8. The end of the member 15 adja Fig. 3 is an enlarged fragmentary section- cent the flange 18 projects through the board al view showing the construction at the lower. 8 and is recessed and threaded within the re 80 end of the worm shaft. cess for a purpose hereinafter described. A 85. Fig. 4 is an enlarged fragmentary section nut or clamping member 19 whose outwardly all view of the mechanism at the upper end projecting flange serves as an escutcheon of the worm shaft including the operating plate for holding the upholstering material handle, gears for turning the worm shaft. 21 against the board 8, has a projecting 35 and co-operating mechanism. threaded portion adapted to be threaded into 90 Fig. 5 is an enlarged sectional view show the threaded end of the member 15 and ing the lower edge of the window in raised thereby clamp the metal board 8 and the up position, the window opening and associated holstering material 21 between the flanges i3 parts. and and also firmly secure the member 15 40 Fig. 6 is a section taken on the line 6-6 in place on the metal board 8. The nut or 95. of Fig. 1 and shows the means for holding clamping member 19 has a central opening the worm and worm wheel sector in align- therethrough which serves as a journal and ment. s. Support for the horizontal shaft 16 which Referring to the drawings, 1 is an automo- projects through the same and to which the 45 bile door having a window opening 2 therein, handle 22 is Suitably secured. A bevel gear 103 and 3 designates a glass or window part 23, preferably of the spiral tooth type, is se-- which is adapted to be raised in position to cured to the end of the horizontal shaft 16 close the opening 2 or to be lowered into the Opposite the handle 22 to turn therewith and lower portion of the door, which is made also bear against the end of the member 15. 50 hollow for such purpose, as is customary in A flange 24 on the horizontal shaft 16 seats 108. doors used in closed vehicles, as for instance, against the bottom of the recess in the end in automobiles.. of the member 15 and this in conjunction The window or member 3 is adapted to with the gear 23 prevents longitudinal move rest freely at its lower edge on a roller 4, ment of the horizontal shaft. 16. A bevel 55 which is carried at the free end of a vertill gear 25 secured to the shaft 10 adjacent its li0. 1
O 5 25 30 40 50 65 upper end meshes with the gear 23 and is caused to turn there with to operate the Worn 9. It is thus evident that the turning of the handle 22 rotates the shaft 16, gears 23 and 25, and worm shaft 10. When the handie 22 is turned, causing the Worm 9 to turn there with, the Worm wheel sector 6 is caused to rotate about its pivot 7 in a direction de pendant upon the direction of rotation of the handle 2 Inasmuch as the arm 5 is Secured to the worm wheel sector 6, rotation of the handle causes the free end of the arm 5 to be raised or lowered, and the associated Window 3 l'esting on the roller 4 is caused to move up or down in a col'i'esponding man ner. A coil spring 26 attached at one end to the upper flanged edge of the metal board 8 and at the other end to the arn 5 Serves to counter-balance the weight of the window 3 resting On the roller 4 at the outer end of the arm 5, so that any strain due to the total weight of the window will be reduced and the mechanism will work freely and without friction. The glass of the Window 3 is provided with a channel shaped metal binding stip 27 at its lower edge which rests on the roller 4 of the arm 5. The upper outside edge of this strip 27 being flanged over and outwardly as at 28. The sheathing of the door 1 pro jects over the lower edge of the window opening 2 to a point adjacent the window 3 as at 29 and is then turned back on it self for a short distance and a flexible rubber strip 30 is placed beneath the same. When the window 3 is raised the rubber strip 30 is compressed between the flange 28 and the door sheathing at 29, to prevent water from passing from the outside of the window to the recess or pocket formed for the window and thus prevent damage to the window regulating mechanism. A downwardly projecting member 31 hav ing an inwardly turned flange at its lower edge is fastened to the binding strip 27, the inwardly turned flange passing below the roller 4 on the arm 5 so that in the event the window 3 becomes stuck or does not freely follow the roller 4 when the same is lowered, the roller 4 will bear against the inwardly turned fange of the member 31 and pull the window 3 with it to its lowered position. The segment of the worm wheel 6 as shown in the drawings is preferably made of sheet metal to reduce weight and cost and in the event that the window 3 works rather hard in its guideways the segment 6 might bend out of the engagement with the worn 9 when an excessive strain is put on the mech anism to move the window 3 if means was not provided (see Fig. 6) for keeping the sector 6 and worm 9 at all times in proper alignment. This means comprises a block 32 Secured to the metal board 8 in which is Supported a ball-bearing 33 which bears against the side of the sector 6 adjacent its outer edge, the ball bearing 33 being free to l'otate. A member 34 also secured to the linetal board 8 passes out around the worm 9 and ove; the outer edge of the sector 6 and carries a ball-bearing 35 which seats freely between the member 34 and the sector 6 at a point on the opposite side of the sector 6 froin the ball-bearing 33 but in a position corresponding therewith. The sector 6 is thus guided between the ball-bearings 33 ad 35 which prevents it from bending side Wise out of engagement with the worn 9. The airin 5 which is secured at its one end to the sector 6 to pivot there with at, has its free end offset from the sector 6 so that lion rotation the arm will free the ball. bearings 33 and 35 and the guide member 34 when the window 3 is raised to closed position. It has heretofore been coinnon practice in building Window regislators to provide ineans foi' locking the Operating handle against 'O- 90 tation when not being Operated, to prevent the window fi'on slipping down inadvert eitly. An important result obtained by the co-struction shown is that it is possible to. do away with such locking mechanism as it 95 is an inherent characteristic of a won and wheel that the wheel is self locking when the threati angle of the worm is equal to, Ol' Sinailer than, the angle of friction between the worm and wheel, the usual value of such thread angle being about 83 degrees. Thus if the thread angle of the worm is 8 degrees or less then'e will be no danger of the window working down inadvertently. Should desire to rise a worm of a greatel' thread angle, any type of Satisfactory handle locking device may be used for preventing. the window from working down. it is understood that formal changes may be made in the specific embodiment of this invention without departing from the Spirit or substance of the broad invention, the scope of which is commensurate with the ap pended claims. What I claim is:-.. 1. The combination with a closure and its frame, of a Supporting member extending across said frame, a lever pivoted at One : end to said supporting member and Support ing said closure at its free end, a segmen tal worm wheel secured to said lever and movable there with, a vertical shaft sup ported by thrust bearings on said supporting member, a worm on said shaft meshing with said worm wheel, means to prevent displace ment of said worm wheel in respect to said worm, means to rotate said shaft and thereby raise and lower said closure, and resilient eans for counterbalancing the weight of. said closure. O SO C () IO 30.
O 5 40 The combination with a closure member low frame, a window slidably mounted in and its frame, of a lever pivoted at one end said hollow frame, a lever pivoted at one end thereof to said frame and supporting said and supporting said window at its free end, closure member at the free end thereof; a worm wheel sector secured to said lever, worm wheel sector connected to and movable a worm operating in conjunction with said with said lever; a shaft having a worm worm wheel, the thread angle of said worm thereon meshing with said worm wheel sec being smaller than the angle of friction be tor; guides adjacent the toothed face of said tween said worm and worm wheel sector, worm wheel sector to prevent disengagement means for causing rotation of said worm, thereof in l'espect to said worm; thrust bear and rotatable means to guide said worm. ings for said worm; means for adjusting the wheel sector. axial position of said worm; a gear on said 6. In a device of the class described, a hol shaft; a gear on a second shaft meshing with low frame, a window slidably mounted in said first mentioned gear and a handle on said hollow frame, a board extending across said second shaft to rotate said shaft and the width of said frame and forming a part said gears... thereof, a lever pivotally mounted at one end 3. The combination with a closure and its to said board and supporting said window frame, of mechanism for raising and low - at its free end, a segment of a worm wheel ering said closure comprising a lever, a Worm secured to said lever, a worm supported by wheel sector, a worm, and means for rotating said board meshing with said segment of the same; and means for preventing dis the worm wheel, the thread angle of said placement of said worm wheel in respect worm being such that said worm wheel is to said worm, said means comprising rotat irreversible or self locking and mechanism able guides positioned adjacent the toothed Supported by said board for causing rota face of said worm wheel sector. tion of said worm. 4. The combination of a closure and a 7. In a closure operating mechanism, the frame, of a metal board extending across the combination with a slidably mounted clo width of said frame adapted to support sure member, of means for moving said clo mechanism for raising and lowering said sure member comprising a lever pivoted at closure, said mechanism comprising a lever One end and supporting said closure mem pivoted at one end to said metal board and ber at the other end thereof; a Worm wheel carrying said closure at the free end there sector secured to said lever adjacent its piv of; a worm wheel sector secured to said lever; oted end; a worm meshing with said worm a shaft having a worm thereon meshing with wheel sector; rotatable means for holding said worm wheel sector and supported by said worm wheel sector in alignment with said metal board; means for taking the said worm; and means for rotating said thrust and for adjusting the axial position worm to thereby raise and lower said closure of said shaft; means for causing l'otation of member. s said shaft; and means for holding said worm Signed by me at Detroit, Michigan, U.S.A., wheel sector in proper relationship with said this 22nd day of June, 1923. WO. 5. In a device of the class described, a hol JOSEPH. H. BOURGON. 45 50 55 65 70 75 80