US1582854A - Window regulator - Google Patents

Description

April A' 2 7 1926.

VH. E. NoRwooD ET An.

WINDOW REGULATQR FiledJan. ll,v 1922 m 7,71, 5M N i@ MTM mi M Patented Apr. 27, 1926.

UNITED STATES PATENT OFFICE.

HARRY E. NORWOOD AND 'FREDERICKGL MAIER, OF NEW YORK, N. Y., ASSIGNORS, BY MESNE ASSIGNMENTS, TO PERFECT WINDOW REGULATOR CORPORATION, OF LONG ISLAND CITY, NEW YORK, A CORPORATION OF DELAWARE.

WINDOW REGULATOR.

Application led January 1-1, 1922. Serial No. 528,585.

To all io hom it may concern.'

Be it known that we, HARRY E. Noawoon and FRnDnRicK G. MAIER, citizens of the United States, and residents ofNew York, in the county of New York and State of New York, have invented certain new and useful Improvements in Window Regulators, of which the following is a specification.

Our invention relates to window regulators adapted to raise or lower windows, and it is particularly adapted for use with thattype of regulators now well known and employing two sprockets or wheels, a1 chain or 'other linear inernber running over said sprockets or wheels, means for rotating said sprockets and a connection between the-cliain and the window whereby the window may be raised or lowered as desired upon rotation of the rotating means in the proper direction.

The object of the invention is the provision of a. device which may be cheaply constructed and easily manufactured and which will automatically adjust itself at all ltimes to keep the chain or other lineal member taut and thereby prevent it from running off the sprockets under abnormal conditions.

A further object of the inventionis the mounting of the regulator in position b y novel means which will permit it to be bodily and easily removed without removal of the side of the door or other portion forming` a wall of the window well.

In the accompanying drawing illustrating a practical embodiment of the invention:

Fig. l is a side elevation of the window regulator as applied to a window Fig. 2 is an 'enlarged side elevation (partly broken away) of the lower portion of the regulator.

Fig. 3 V is a vertical cross-section oiizthe line 3-3 of Fig. 2.

Fig; ais a Vhorizontal.section .on the line 4- 4ofFig.2.

Fig. 5 is a front elevationof the slide member.

Fig. 6 is an end View of thebolt on which the lower sprocket. is mounted.

' plate 3.

Fig. 7 is a horizontal section on the lino Z-7 of Fig. 5.

Referring in detail to the several figures of the drawing:

1 indicates a window which is reciprocated vertically in a suitable frame the lower part of which is indicated at 2. 3 indicates a plate secured tothe lower part 2, said plate having an upper sprocket l mounted thereon. A vertical depending bar or strap is indicated at 5, the lower end of said bar being provided with bevelled edges 6. The base 7 of the window'well has a bracket or support 8 secured 'thereto by any suitable means as by the screws as shown, which bracket is provided with a slot 9 the top of the wall thereof being rounded or curved as at 10.

.The lower end of the bar 5 is received by the slot 9 of the bracket 8 and is loosely held therein while the upper end of said bar is fastened as by the screws or rivets 1l to the This manner of mounting and loosely holding the bar in the'window well is particularly desirable as it Vpermits the installation or removal of the device without tearing down a side wall of the window well or the upholstery of the door as is necessary in most cases in order to fasten the lower end of the bar within the window well. In the present construction the bar is merely slipped within the window well and inserted in position within the slot by feeling, the bevelled edges 6 of said bar and the rounded portion 10 of 'the bracket 8 considerably facilitating the proper positioning of the bar within the slot in an obvious manner.

The bar or strap y5 is provided with a lower slot 12 therein and with an upper vslot 13, said upper slot being so cut in the mate- 'rial as to forman arm 14. 15 and 1 6 indi- Cate slldabl plates Veach of Which is pivided with depressions ipressed out if the metal to recei'xf the anti-'friction balls Ais which are supported in suitable depressins in the bar or Astrap as illustrated. The `upper ends of the plates are bent inward-ly into engagement 'with eachother wrdn-urne slot '13 and roi-rn shoulder i9. 2o indicates a compression spring encircling the arm 14, the upper ends ot' the plates 15 and 16 and bearing against the shoulder 19.

A bolt 20Y extends through the slot 12 in the bar and also through openings 21 in the plates 1t and 1G. Said bolt is provided with ears 22 thereon received by slots 23 in the plate whereby rotation of said bolt is prevented. rlhe iub portion 211 of a lower rotatable sprocket 25 is mounted on the enlarged portion 26 of the bolt 20', a longitudinal movement or" said sprocket on said portion 26 being prevented by a flange 27 on the end of said bolt and by an annular ridge 28 in the plate 15 pressed out ot the metal. A nut 29 is screwed on the end Yont the bolt and holds the plates togethex in an obvious manner, a Washer 30 preferably being interposed between the plate 1G and said nut. To prevent a rocking or turning movement ot the sprocket on the bolt We have provided the plate 15 with tivo lugs orY projections 81 pressed out ot the metal on either side thereot' which are adapted to contact with said bar 5 to prevent such rocking or turning movement.

An endless driving chain 32 passes over the upper sprocket. l and the loiver sprocket 25 and is held taut by the action ot the spring 2O which, as hereinbeitore described, presses downwardly against the vertically slidable member constituting the plates 15 and 16 and which carry theY sprocket 25 therewith, thus preventing the chain from running oil the sprockets as is manifest.

rlhe chain 32 is connected to the ivindoiv by means of a pin 38 engaging in a slot of a plate 34C secured to and depending from the window. By rotating a handle 35 connected to the upper sprocket l therrchain Ais caused to travel around the sprockets l and 25 and the Window is raised or lowered according to the direction ot' rotation given the handle. This portion ot the construction et the device is old, however, and forms no part of the present invention.

lVhat We claim as our invention is 1. In a Window regulator, a bar provided With a beveled end, a Wheel rotatably mounted thereon, a linear member running over said Wheel fortransmitting motion and a supporting member provided with a slot having a curved Wall adjacent said slot, said slot loosely receiving the beveled end ot said bar.

2. In a ivindovT regulator. a supporting bar, a Wheel rotatably mounted thereon, a. linear member running over said Wheel4 ior transmitting motion, a supporting bracket positioned to engage and support said bar, and means for guiding said bar `into engagement with said bracket.

3. 1n a Window regulator, a support provided ivith a slot therein, a sprocket, a chain extending "over sai l' sprocket'for transmitting motion, a bolt extending through said slot on Which said sprocket is mount-ed, a plate slidable on said support and carried by said bolt and spring means engaging said support and said plate for tensioning said chain. c

4l. In a Window regulator, a support pro- `vided with a slot therein, a depression in said support, a sprocket, a chain extending over said sprocket for transmitting motion, a bearing member receiving and sup aorting said sprocket and extending into said slot, a slide slidable on said support and secured to said bearing member, said slide having a depression therein corresponding ivit-h the depression in said support, and antitriction means mounted in said depressions.

5. In a Window regulator, a bar provided With a slot therein, a sprocket, a chain extending over said sprocket for transmitting motion, a bolt extending through said slot on Which said sprocket is mounted, a slide comprising tivo plates carried by said bolt, means on said bolt for holding said plates in sliding engagement with said bar and spring means engaging said slide for tensioning said chain.

6. In a Window regulator, a support provided With upper and lower slots therein, a sprocket, a chain extending over said sprocket tor transmitting motion, a bolt eX- tending through said-lower sloton which said sprocket is mounted, a slide comprising tivo plates slidable on said support and carried by said bolt and having their ends bent adjacent each other Within said upper slot and a spring within said upper slot engaging said slide for tensioning said chain.

7. In a Window regulator, a support provided ivith upper and lower slots therein, an arm extending` within said upper slot, a sprocket, a chain Yextending over said sprocket for 'transmitting motion, a bolt extending through said lower slot on which said sprocket is mounted, a slide comprising two plates slidable on said support and Ycarried by said bolt and having their ends turned Within said upper slot to form a shoulder and a spring Within said upper slot supported by said arm and the ends of said plates and bearing` against said shoulder and adapted by its action to tension said chain.

, 8. 1n a Window regulator, a bar provided with a slot therein, a sprocket, a chain eX- tending over said sprocket for transmitting motion, a bolt extending through said slot on Which said sprocket is mounted,`a slide comprising a plate slidable on said bar and carried by said bolt, means on said bolt engaging said plate tor preventing rotation ot said bolt and spring means engaging said bar and said plate for tensioning said chain.

9. In a Window regulator, a support provided with a slot nerein'aad -with an arni extending within said slot., :1 slide comprisinga plate siidahle on Said support and having a part extending within said slot, a wheel rotatably mounted on said slide, 2L lineal' member running over said wheel for transmitting mot-ien and a Spring encircling said anni and said pant which extends within said slot fory tenisioning said linear ineinber.

Signed at New York in the count-y of 10 New York and State of New York this 10th day of January .Aa D. 1922 HARRY E. NGRVOOD. FREDERICK G. MAIER.

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