US1491973A - Window regulator - Google Patents

Description

April 29, 1924. ,491,973

P. w. sr-:ILER

WINDOW REGULATOR Filed Oct. 14. 1922 tpetentecl pr. 29, 192e.

@MTO STTES lddll PATENT @FFME PAUL W. SEIIIER, OF DETROIT, MICHIGAN, ASSIGNOB TO TERNSTEDT MANUFACTUR- ING COMPANY, QF DETROIT, MICHIGAN, A CORPORATION OF MICHIGAN.

WIN DOW REGULATOR.

Application filed October 14, 1922. Serial No. 594,534.

To all 107mm t may concer/c.'

Be it known that I, PAUL lV. SE1LnRciti zen of the United States, residing at Detroit, in the county oi lVayne and State of Michigan, have invented certain new and useful Improvements in VVindOw Regulators, or which the following is a specification.

This invention relates to window regulators and has for its object a window regulator provided with a peculiar assembly i'or the eountenbalancing spring and special provision to prevent the rattling of the counterbalancing spring. This diliiculty due to vibration was recognized and provided for in the prior. Allmand and Lawrence Patent 1,278,554 where a cupped gear and spring cup housed the counter-balancing spring.

It is the object of the present invention to eliminate the necessity of a spring cup and to provide a spring stress which will hold the counter-balancing spring and prevent vibration and objectionable rattling or chattering.

ln the drawings:

Fig. l is an elevation of the top portion of a window regulator.

Fig. 2 is a section taken on the line 2-2 of Fig. 1.

Fig. 3 is a section taken on the line 3 3 of Fig. 2.

The regulator here shown happens to be a chain one in which a chain L runs over a sprocket wheel o. This is connected with a driven gear wheel c by means of a'bolt cl. A bushing e is secured on to the end of the bolt by the nut j. This bushing e rotates in the bea-ring g pressed from the coverplate. The driven gear c is simply a stamping with a plurality of cireularly arranged lugs h punched out ot the web of the gear wheel to form a spring casing. This is all that is necessary to hold the spring on the outside to prevent the saine from moving outwardly.

However, the spring is still free to move r sidcwise. hence l provide one or more large flexible spring metal washers j. These are bowed and are bowed preferably only in such a way that they are really segments of a hollow cylinder rather than segments of a sphere. This is shown by the shading in Fig. 3, hence they will yieldingly contact every whorl of the spiral. spring, yieldingly hold the same in place and preventing the same from chattering with the vibration of the vehicle. This wholly eliminates 'any chattering or singing of the spring' when the car is running over a rough road and` aids in securing an absolutely noiseless closed body construction. The inside of these regulators, that is t-he internal of the cover plate, is packed with grease so that there is no objectionable friction or noise by rubbing.

It will be apparent that this is of even cheaper construct-ion than the spring cup shown and claimed in the above rel-erred to Allmand and Lawrence patent.

That I claim is:

l. In a window regulator, the combina tion of a gear, a casing in which the same is rotatably supported, a spiral counter-balanc- 'in s Jrin contained in the casino ad'aeent to the gear and one or more spring metal washers bearing against the spiral spring to prevent vibration.

2. In a window regulator, the combination of a easing, a gear rotatably supported in the casing, a spiral counter-balancing spring supported in the casing adjacent to the gear and one or more spring metal washers bearing against the spring to prevent vibration, each washer in the form of a circular segment of a hollow cylinder.

3. In a window regulator, the combination of a casing, a gear rotatably supported in the casing and provided with punched-out lugs, a spiral counter-balancing spring contained within the punched out lugs of the gear and one or more bowed spring metal PAUL W. SEILER.

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