US1580571A - Jack - Google Patents

Description

April 13 1926. 1,580,571

7 w. PUTZKE JACK Filed Dec. 1921 INVE TOR J inediately available.

' automobile g which may be locked in inoper- Fatented Apr. 13, 19.26.

UNITED STATES Y I 1,580,571 PATENT OFFICE.

WILLIAM PUTZKE, OF NORTH MILMAUKEE, WISCONSIN, ASSIGNOR TO EVEREDY AUTO 'J ACK' 00., OF MILWAUKEE, WISCONSIN, A CORPORATION.

JACK.

Application filed December 5, 1921. Serial No. 519,847.

To all 10. 2am- ?it may CONGP Iil Be it known that I, lVi'LLrAM Po'rzxn, a citizen of the United States, residing at Xortli hililwauhee, county of Milv'raukee. and State of lVisconsin, have invented new and usefu In'iprovemenl's in Jacks, otwhich the following is a specification.

This invention relates to automobile jacks.

It is well known that automobile. jacks, as heretofore constructed, are veryeasily lostand are,therer"ore, not at all timesimso position the ack in the tool kit, orother receptacle, that it will not rattle. Infact, no means are provided for securing the jack in stored position. V

This invention is designed to overcome the above noted defects and,1theretore, objects of this inventionare to provide a permanently positioned jack for automobiles; to provide a jack which is at all times associated with its corresponding wheel; and to provide a jack which may be readily'and' instantly brought into use. 7

Further objects are to provide a jack which may be permanently'secured to an ative position; and .which cannot slip along the axle of the car.

Further objects are to provide ajack which is of extremely simple formation;

which does not detract from the general appearance of the 'car to which it is attached; and which may be readily and cheaply manufactured. i

An embod'ment of the invention is shown in the accompanying drawings, in which: Figure 1 is a view of the rear axle of an automobile with a pair of jacks attached thereto.

Figure is a view of one of the jacks in extended or operative position.

'Figure 3 is a detail of the means for retaining the jack in inoperative position and shows such means clam-pedupon the housing.

Figure 4 is a view of the jack, partlyin section, and upon an enlarged scale, showing' the clampingmeans for securing the pivotally mounted end of the jack in extended or open position.

Figure 5 is an enlarged view correspond-- ing to Figure 3. o Figure 6 illustrates a modified detail. I

I The jack comprises a main clamping membercomposed of apairof, aws 1 and 2,

It is alsodiificult topivotally joined at 3, and provided with lugs 4 and 5 adapted to be drawn towards each other after the clamp has been positioned about the axle or housing 6. A con: venient way of securing the firm clamping actionis to pass a boltT thru the apertures 8 and 9 in these lugs and to tighten such bolt to thereby draw the clamp into firm engagement with the housing, or axle, 6. A bracket 10 is secured by means of a rivet ll to the lower portion otthe clamp, preferably to the relativelyjstationary jaw 1. This bracke't is'provided with a pair of parallel jaws 12between which an'operating' handle or liftin'g member 13 .is' pivotallysecured by means of a'bolt '14. This handle is preferably composed of strap metal formed to providesubs'tantially parallel arm portions resiliently. connected by a rounded manipulating end 15. The bottom portion or fulcrum member of the jack is formed of strap iron and comprises a pair of upwardly-extending, parallel arms or standards 7 16 resiliently joined adjacent their lower ends .by means of an arch-shaped,member 17 and converging adj acenttheir upper ends to produce parallel spaced portions 18.

-The'se spaced; portions 18 are positioned upon opposite sides 101: the handle or lever 13.

and pivotally joined thereto by means of a fulcrum bolt 19. I

When the jack is not in use, it is bolted in inoperative position by swinging the lever 13. about the pivot bolt 14 and swinging, the supporting member 16 into a plane, including the lever 13." When the parts approach the position shown on the left hand side of Figure 1, they are so guided that the inner arm 20 and the outer arm 21 of clamp or hanger 22. pass, respectively, withinthe rounded portion 15 and externally of the portions 16 of the members; Thesarms 20 and 21 of this clamp which areoffset from a. perpendicular plane passing through the axis of the housing 6 are then drawn together by means of a thumb nut 23 carried upon a bolt 24 pivotally mounted ati2'5" upon thearm 20; A slot is formed in the arm 21 so as to'permit the free upward" swing of the bolt 24 when it is desired to lock thejack in inoperative position. The'cl'amp or hanger 22 is held upon the-housing'fi by meansofa bolt'26 which normal'ly'draws th'eparts ofthe clamp into --'-i'ntimteor 'bindi'ng contact With-such I housing. The positioning of the various parts of the device is such that when the thumb nut 28 is screwed downwardly upon its bolt 2%, the arms 20 and721 will bind against the two movable p irtions of the jack and will etfecually prevent any rattling or relative motion.

ll'hen it is desired to use any one of the jacks, its thumb nut is loosened and the bolt 24. swung downwardly, thereby pern'iitting the parts of the jack to be rocked into the position shown on the right hand side of Figure l. ll hen the parts arrive in this position, the handle 13 is depressed, thereby lifting the corresponding portion of the car upwardly by a toggle action. This downward motion of the lever 13 is continued until the lever is in line with the portions 16 of thesupporting lever or memher.

it will thus be seen that an automobile. jack has been provided which is of ex tremely simple construction, of light weight, and which may be readily and cheaply manufactiu'ed. It will also be seen that a jack has been provided as permanent part 'of an automobile, and has been so designed and positioned that it does not disfigure the car or detract from its general or pleasing appearance. It will also be seen that the jacks wil be securely retained in inoperative position and will not rattle or .th rwise cause disturba co by dr pping downwardly.

in Figure 6 the operating handle 13 is illustrated as having arm portions conforming; generally to the contour of the bottom portion of the jack, and tr stop 28 is employed to prevent the handle from pushing thru the base. A cross rod 28 is shown in Figure at for the same purpose.

In Figure 6 also coil springs 30 are employed on the bolt 19 to maintain a clamping pressure between the arms 16 of the base av l the lever arm, or shank. hesc springs also serve to prevent excessive friction. or binding pressure, such n'iight result if the nut on the bolt 19, shown in Figure l; were turned up too tightly. In the form disclosed in Figure 6, the parts pref ly c. mprise castings.

l clann:- i. it hanger tor a type of vehicle jack in arms and adapted to support therefrom the portions of such a jack received therebetween.

2. In a jack for attachment to a vehicle axle, the combination with a fulcrum member having a pair of spaced standards of a lifting lever pivotally supported from the upper ones of said standards, and resilient means for maintaining said standards in frictional contact with said lifting lever, whereby to prevent rattling of the jack when said jack is attached to a vehicle axle. V

3. In a jack for attachment to a vehicle axle, the combination with afulcrum member having a pair of spaced standards, of a lifting lever, a pivot pin extending through said lifting lever and standards, a spring on said pin engageable with. one of said standards, and means on said pin engageable with said springand the other of said standards, whereby to maintain said standards in frictional contact with said lever.

14:. A hanger for vehicle jacks, said hanger comprising an axle-encircling portion terminating in substantially parallel arms one of which is substantially tangential and the other of which is substantially radial with respect to said portion, a clamping bolt connecting said arms adjacent said axle-encircling portion and adapted to clamp said portion to an axle, and a second clan'iping device spaced from the bolt along said arms and adapted to compress the extremities of said arms about interposed portions of a acr.

In a. jack for attachment to a vehicle axle, the combination with a fulcrum member having a pair of spaced resiliently connected standards, ofa lifting lever, a pivot pin extending through said lifting lever and standards, said pivot pin hav' spring means engaging said standards thereby to cause said standards to frictionally engage said lever.

6. A hanger for vehicle jacks, said hanger comprising an axle-encircling portion terminating in substantially parallel arms one of which is substantially tangential and the other of which is substantially radial with respect to said portion, a clamping bolt connecting said arms adjacent said axle-encircling portion and adapted to clamp said portion to an axle, and a second clamping device spaced from the bolt along said arms and adapted to compress the extremities of said arms about interposed. portions of a jack. said clamping device comprising" a bolt in pivotal connection with one of said arms and the other of said arms being prm'ided pith a slot to receive said last niei'itioncd olt.

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