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Publication numberUS3125334 A
Publication typeGrant
Publication dateMar 17, 1964
Filing dateMay 2, 1961
Publication numberUS 3125334 A, US 3125334A, US-A-3125334, US3125334 A, US3125334A
InventorsThomas E. Lohr
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Window regulator
US 3125334 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

March 17, 1964 T. E. LOHR wmoow REGULATOR Filed May 2, 1961 2 Sheets-Sheet 1 INV EN TOR.

A77DRNEY March 17, 1964 T. E. LOHR 3,125,334

wmnow REGULATOR Filed May 2, 1961 2 Sheets-Sheet 2 INV EN TOR.

BY izomas 6. 30%:

ATTORNEY United States Patent 3,125,334 WINDOW REGULATOR Thomas E. L'ohr, Detroit, Mich, assignor to General Motors Corporation, Detroit, Mich., a corporation of Delaware Filed May 2, 1961, Ser. No. 107,128 Claims. (Cl. 26S124) This invention relates to window regulators and more particularly to an improved window regulator for moving a vehicle window between open and closed positions.

The window regulator of this invention is of the general type including power-operating means mounted on the window and engageable with means mounted on the body in order to move the window between open and closed positions. In the preferred embodiment of the invention, a double-ended electric motor is secured to the window for swinging movement relative thereto about both horizontal and vertical axes. A pair of pinions driven by the motor mesh with racks secured to the body to furnish the driving connection between the window and the body. The pinions are of a width greater than the width of the racks in order to permit longitudinal movement of the window relative to the racks as the window moves between its positions. Roller means supported by the motor are engageable with the racks to maintain the tooth spacing between the lands of the pinion teeth and the lands of the rack teeth, with spring means continually biasing the motor toward the racks about the horizontal axis so as to insure constant meshing engagement of the pinions with the racks regardless of lateral displacement of the racks relative to each other or lateral displacement of the window relative to one or both racks. A window regulator clutch connects spaced portions of the armature shaft adjacent one of the pinions to insure that the window will remain in any adjusted position thereof by preventing the weight of the window and of the electric motor from driving the pinions along the racks.

One feature of the invention is in the mounting of the motor for pivotal movement about horizontal and vertical axes relative to the window so as to insure constant meshing engagement of the pinions with the racks regardless of lateral displacement of one rack relative to the other or lateral displacement of the window relative to the racks. Another feature of this invention is in the use of the rollers which engage the racks and the biasing springs which continually bias the motor toward the racks to maintain the tooth spacing between the lands of the pinion teeth and the lands of the rack teeth. This feature of the invention insures a positive driving connection of the motor with the racks at all times. A further feature of this invention is in the differential width of the pinions relative to the racks to allow longitudinal shifting movement of the window relative to the racks as the window moves between its opened and closed positions. Yet another feature of this invention is in the clutch which prevents the weight of the window and of the motor from driving the pinions relative to the racks when the motor is deenergized.

These and other features of the invention will be readily apparent from the following specification and drawings wherein:

FlGURE 1 is a partially broken away partial side elevational view of a vehicle door having a vertically movable door window movable between open and closed positions by a window regulator according to this invention;

FIGURE 2 is a view taken generally along the plane indicated by line 2-2 of FIGURE 1;

FIGURE 3 is an enlarged sectional View taken gen- 3,125,334 Patented Mar. 17, 1964 eirallydalong the plane indicated by line 3-3 of FIGURE FIGURE 4 is an enlarged sectional view taken generally along the plane indicated by line 4-4 of FIGURE 1.

Referring now to FIGURE 1 of the drawings a vehicle door 10 includes a door outer panel 12 and a door inner panel 14 which are spaced apart to provide a window receiving well 16 for the vertically movable door window 18. Window 18 opens and closes the rearward portion of the door window opening, with the forward portion of the door window opening being opened and closed by the usual swingable ventilation window 20.

An angle bracket 22 secured to the lower frame member 24 of the window i8 is bolted at 26 to flange 28 of an offset bracket 30. Bracket 30 includes a pair of apertured lateral ears 32 which are pivoted by pin 34 to a like pair of ears 36 of an angle bracket 38. Bracket 33 is pivoted by pin 40 to one leg of an angle bracket 42 which is bolted at 44 to a double ended electric motor 46. Motor 46 can thus swing about a vertical axis defined by the axis of pin 46 and can also swing about a horizontal axis defined by the axis of pin 34. A pair of bowed leaf springs 48 having one end thereof riveted at 50 to bracket 30 engage the bracket 42 so as to continually bias the brackets 38 and 42 to the left or clockwise about pin 34, as viewed in FIGURE 2, and also act to center bracket 42 relative to bracket 30 about pin 40.

A pair of like racks 52 include offset flanged ends which are secured at 54 to the door inner panel 14 in order to mount the racks on the body. The central portion of each rack is of generally channel shaped construc tion, with one leg of this portion being provided with a number of equally spaced gear teeth 56. The teeth 56 mesh with pinions 58 and 60 which are driven by motor 46. Pinion 58 is suitably fixed to one end of the armature shaft 62 of motor 46 and the width of this pinion as well as the Width of the pinion 60 is greater than the width of the teeth 56, FIGURES l and 4, so as to insure meshing engagement of the pinions with the teeth 56 of the racks despite any longitudinal shifting movement of the window relative to the racks as the Window moves between its open and closed positions. The other end of the armature shaft 62 is fixed to a rubber torsional coupling member 64 which is also I secured to a shaft member 66 which mounts the pinion 60. A clutch member 68 is secured at 70 to a flange 72 of bracket 42 to interconnect the shaft member 66 and the bracket 42 when the motor is deenergized. Clutch member 68 is of known construction and reference may be had to copending application S.N. 43,407, filed July 18, 1960, for the details of a suitable clutch member. The shaft member 66 and the one end of the armature shaft 62 each rotatably mount a rubber or nylon roller 74 which engage the bases of the channel portions of the racks 52 adjacent the teeth 56 so as to maintain the tooth spacing between the lands of the pinion teeth and the lands of the rack teeth. The rollers 74 are held in engagement with the racks 52 regardless of any movement of the motor 46 about either its horizontal or vertical axis by means of the springs 48.

The operation of the window regulator is believed obvious and accordingly only a brief description will be given. When the motor 46 is operated, the armature shaft 62 will rotate to drive the pinion 58 and also drive the shaft member 66 so as to drive the pinion 60 and thereby move the window 18 from its closed position, as shown, to any open position. When the shaft member 66 is rotated, the clutch 68 will be released so as to permit rotational movement of the shaft member in either direction.

Should the racks 52 be laterally displaced relative to each other, such displacement is easily compensated for by movement of the motor 46 about either or both its horizontal and vertical axes. Additionally, if the window 18 does not move in a straight vertical path between its open and closed positions, such movement will also be compensated for by movement of motor 46 about either its horizontal or vertical axes. Of course, regardless of the position of the motor 46 about either its horizontal or vertical axis, the tooth spacing between the teeth of the pinion and the teeth of the rack will be maintained by means of the rollers 74 and its springs 48.

Thus this invention provides a new and improved window regulator.

What is claimed is:

1. In a vehicle body including a window opening and a window movable in a multiplicity of planes between open and closed positions with respect to said opening, the combination comprising, power operating means, means operatively interconnecting said power operating means and said window for selective movement of said window and said power operating means relative to each other about horizontal and vertical axes, rack means mounted on said body, pinion means driven by said power operating means and engageable with said rack means to thereby move said window, and means maintaining the working depth of said pinion means and said rack means regardless of the horizontal or vertical position of said window and said power operating means relative to each other.

2. In a vehicle body including a window opening and a window movable in a multiplicity of planes between open and closed positionswith respect to said opening, the combination comprising, power operating means, means operatively interconnecting said power operating means and said window for selective movement of said window and said power operating means relative to each other about horizontal and vertical axes, rack means mounted on said body, pinion means movable with said power operating means and driven thereby, means biasing said pinion means into engagement with said rack means, and means limiting movement of said pinion means relative to said rack means to maintain the working depth of said pinion means and said rack means regardless of the horizontal or vertical position of said window andsaid power operating means relative to each other.

3. In a vehicle body including a window opening and a window movable in a multiplicity of planes between open and closed positions with respect to said opening, the combination comprising, power operating means, means operatively interconnecting said power operating means and said window for selective movement of said window and said power operating means relative to each other about horizontal and vertical axes, rack means mounted on said body, pinion means movable with said power operating means and driven thereby, means biasing said pinion means into engagement with said rack means, means limiting movement of said pinion means relative to said rack means to maintain the working depth of said pinion means and said rack means regardless of the horizontal or vertical position of said window and said power operating means relative to each other, and means preventing movement of said window when said power operating means are deenergized.

4. In a vehicle body including a window opening and a window movable in a multiplicity of planes between open and closed positions with respect to said opening, the combination comprising, an electric motor, means operatively interconnecting said motor and said window for selective movement of said motor and said window relative to each other about horizontal and vertical axes, rack means mounted on said body, pinion means secured to the armature shaft of said motor and engageable with said rack means to thereby move said window, means engageable with said rack means to maintain the working depth of said pinion means and said rack means regardless of the horizontal or vertical position of said window and said motor relative to each other, and resilient means biasing said motor about its horizontal and vertical axes toward said rack means to hold said engageable means in engagement with said rack means.

5. In a vehicle body including a window opening and a window movable between open and closed positions with respect to said opening, the combination comprising, an electric motor, means operatively interconnecting said motor and said window for selective movement of said motor and said window relative to each other about horizontal and vertical axes, pinion means secured to the armature shaft of said motor and engageable with said rack means to thereby move said window, means engageable with said rack means to maintain the working depth of said pinion means and said rack means regardless of the horizontal or vertical position of said window and said motor relative to each other, resilient means biasing said motor about its horizontal and vertical axes toward said rack means to hold said engageable means in engagement with said rack means, and clutch means preventing movement of said window when said motor is deenergized.

References Cited in the file of this patent UNITED STATES PATENTS

Patent Citations
Cited PatentFiling datePublication dateApplicantTitle
US2755081 *Oct 8, 1951Jul 17, 1956Johnson ClarenceGarage door operators
US2947569 *Mar 7, 1958Aug 2, 1960Ford Motor CoPower window regulator
Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US3449861 *Jun 9, 1967Jun 17, 1969RenaultAutomatic winding window regulators
US3501865 *Sep 23, 1968Mar 24, 1970Hoermann KgDoor operating mechanism
US4167834 *Feb 15, 1978Sep 18, 1979Ferro Manufacturing CorporationPower window mechanism
US4669222 *Nov 21, 1985Jun 2, 1987Nissan Motor Co., Ltd.Window regulator
US5301734 *Feb 16, 1993Apr 12, 1994Geo VenturesWindow mechanism
US6655092 *Jul 20, 2001Dec 2, 2003Thyssenkrupp Budd CompanyMethod for fabricating a vehicle door
US20040111970 *Dec 9, 2003Jun 17, 2004Fenelon Paul J.Window lift mechanism
WO2015076767A1 *Nov 14, 2014May 28, 2015Tofas Turk Otomobil Fabrikasi Anonim SirketiA window regulator mechanism
Classifications
U.S. Classification49/358, 49/349, 49/428
International ClassificationE05F11/42
Cooperative ClassificationE05F15/1669, E05Y2600/46, E05Y2900/55, E05Y2201/434, E05F11/423
European ClassificationE05F11/42B