US1889965A - Wheel puller - Google Patents

Description

E. KENDALL l 1,889,965

WHEEL FULLER Filed March 26. 1930 Patented Dec. 6, 1932 UNITED STATESv -EARL KENDALL, OF MELROSE PARK, ILLINOIS, ASSIGNOR OF ONE-HALF TO IRA E.

PATENT OFFICE COLE, OF MELROSE PARK, ILLINOIS WHEEL PULLER Application led March 26, 1930. Serial No. 439,042.

The invention relates to improvements in wheel pullers and particularly to a readily adjustable pneumatic device for removing wheels, or the like, from their mountings.

An object of the invention is to provide an improved wheel puller, of the character referred to, that is universally adjustable.

Another object is to provide `an improved pneumatic wheel puller, with improved means for engaging a wheel and wheel mounting, that will not injure the threads on the wheel hub or the mounting axle, or injure the tire.

Another object isv to provide a portable, light, pneumatic wheel puller, rapid and positive in operation, and highly efficientV in service.

Another object is to provide an improved device of the character referred to which may be inexpensively manufactured and readily operatively associated with a wheel.

The foregoing and such other objects of the invention as will appear hereinafter as the description proceeds, will be more readily understood from a perusal of the following specification, reference being had to the accompanying drawing, in which Fig. 1 is a perspective view of the improved pneumatic wheel puller, a wheel being shown v in dotted outline.

Fig. 2 is a vertical longitudinal sectional view through the barrel of the improved device.

Fig. 3 is a fragmentary plan view of one end of the barrel. 35

Fig. 4 is a transverse sectional view taken on line 4-4 of Fig. 1. i

Fig. 5 is an enlarged vertical sectiona view through the operating valve.

Fig. 6 is a sectional View, with parts shown in elevation, taken substantially on line 6-6 of Fig. 1.

The improved pneumatic wheel puller includes adj ustably mounted means for engaging over the end of the wheel mounting or axle, having removable and adjustable wheel engagingarms and hook members extend-ing therefrom. The improved device is entirely free of the wheel and mounting, and may readily be adjusted to any wheel size.

The improved wheel puller preferably induced diameter, on said nose extends into the end of the barrel and is secured therein by screws 16 and 21. The nose 18 preferably is tapered outwardly, as shown, and a cut-out' portion 22 is provided on its upper side to permit viewing of the wheel mounting 13 when the latter extends therein. lThe other end of the barrel 11 is closed by -a suitable plug or head 23 which may be sweated therein and secured by dowel pins 24 to insure a secure and air tight fit.

A plunger or piston 25 having a reduced diameter, as at 26, is mounted for reciprocation in the barrel 11, and a rod 27 extends rearwardly therefrom through the head 23. The rod 27 preferably is detachably secured to the plunger 25 by a ball and socket connection 28 and a suitable handle or knob 29' is provided on its outer end. The handle 29 and rod 27 provide means for manually moving the plunger 25 towards the closed or rear end of the barrel 11 prior tooperating the device.

As shown in Figs. 1 and 4, a saddle or yoke 81 is detachably mounted on the barrel 11, adjacent the nose 18. A rib or tapered flange 32 is formed on the inner surface of the yoke 31, adjacent one edge, for engaging in one of a plurality of. spaced circumferentially arranged notches or grooves 33 in the barrel 11. Extending downwardly from said yoke, on each side of the barrel 11, are parallel 1ugs34, and a pin 35 extends through each of said lugs, below the barrel 11, to retain the yoke in place. As shown in Fig. 2, the pin 85 extends between the barrel and the mounting bracket 15, hence the yoke 31 along 36, mounted in sockets 37 provided one on 62 each side of the yoke 31. The socket engag ing end ofieac'h arm36 is kprovided with a, plurality of holes V38 and aV cotter pin 39, or the like, adjustably secures said arm in place.

iBrackets 41 vareremovably and ad-justably secured to arms 36, one adjacent the Miter end of each arm. The bracket includes a sleeve-like portion 42 for receiving a hook member 43 preferably formed of squarestock.

The hook member 43 is also slidingly mount-V ed' within the bracket 41, adjustment thereof being effectedV by a suitable wing nut 44 mounted upon the threaded end 45 of the hook. ,In operation, the nose 18 of the 'barrel l1 is placed over the end of the axle, 13.

and the hooks 43 are engaged behind the tire, as shown in Fig. 6, iiuid under pressure is .admittedinto the barrel 11 by manipulating valve 47 in the fluid inlet line 48.

The valve 47 preferably includes a body portion 49 having the usual valve seat 51 therein. A valve stem 52 having va tapered valve member 53 for engaging the valveseat 5l is mounted withinthe body 49. One end i ot the valvestem 52 is recessed to receive a spring 54; adepressed portion 55 in the body 49 forms a suitable guide for the recessed end of the valve stem. The springv54 and the fluid/under pressure in the line 48 maintain the valve 47 closed, preventing said,

fluid entering the barrel v11.k

The other end of the valve stem 52 extends through a boss in the body 49 andan operating-handle 56 formed with a sleeve Vportion 57; is mounted thereon. They flange on thev plug58, carried on the end of the Valvefstem` 52,:retains the handle in place.v The steinv 52 also is provided with a central longitudinal bore 59 extending inwardly from the upper end thereof and a port 61 provides communication between the interior of the valve` and the bore 5.9. Another port 6 2, adjacent the upper end of the valve stem,'communicates with the atmosphere. Y The handle 56 is normally held outwardlyv of the upper end of the valve stemr52' by a compression spring 63. Operation of the wheel puller is eii'ected upon depressingthe handle56. Initial depression moves the hanndle downwardly along the valve stem 52 Wheneupon the sleeve portion 57 closes port 62a Continued depression opens the valve/at 5I- and fluid under pressure `is'admitted into the barrel 11, behind plunger 25, through.

passage 64. This iiuid throws the plunger 2fviolently a;aiust` the end of axle 13 and the impact urges the wheel pullerrearward- IyLthu's pulling the wheel 46 free ofthe axle 13.5 Immediately upon releaseof t-he'handlev 56', said handl'eureturns to normalY position device is r-i-gidfly eonstructedef aminimumv 75 number-of movable parts, thus providing a structure capable of-withstanding continuous rough usage without becoming unserviceable. Y e

Although an exemplary form of the improved .device isgjdescribediii-the; foregoing ing, it is to be understood that the improved pneumatic wheel puller may embody 'various kmodi'lications; in structural detail withdeparting from .theI .spirit of the inven-n tion orthe scope of the appended claims? Iclaim.: ,Y f-

l. A Lwheel pullingdevice :of then acter described comprising, in, combination, a vertically :adjustable supper@ :a horizonf tally disposed barrelz-onsaid `support adaptedf to be-arranged axial :alignment with a wheel mountingone end-of saidfbarrel bel ing open ,toi receive theend -ofsai-d mounting and a closure on the other end, a luidfpres sure operated .rec-iprocable' plunger; inwsaid barrel havingv means extending through: saidY closure :for moving" said plunger toward the closed end ,of the barrel, a yoke; mounted Ifor 109. adjustment longitudinally lof said barrel,`opposed horizontally disposedsockets in said. yokean amnxadjustable. longitndinallyy each'1 socket, and a bracket one. adjustable longitudinally on eacharm, a socket ineach` 195. bracket at righi-angles to said arms, av Wheell engaging member4 adjustably .mounted in each, bracket, and meansadmitting fluid into said barrel to drive said plungeragainstsaid wheel mounting tourge the wheel therefrom. m",

2. A wheel pulling .device of the character described comprising, in combination, a ver-v tically .adjustable support,.:a barrel'mon'nted on said support adapted to bearran edm 'axial` alignmentwith a wheeljmountingpa litJ yoke mounted for adjustmentonsaid: barrel having Vdiametrically. opposed sockets 'extending substantially horizontallyftherefrom, an: arm mounted. for adjustment ineacli 'of-said sockets, a` bracket adjustablealong'eacharm,v a socket in each of said brackets, wheel Ven,- gaging members adjustablyfmountedin said sockets, a. fluid. actuated'plunger "in said bar'- rel operable to strike the end of said wheel" mounting to; urge the wheelY therefrom, and means extendingy beyondftle'end of said barrel to; returnsaid plunger-tostarting tion..V c l Y Y 3. A wheelfpullingdevicevof the character described comprising, inl cembination,` a sup- 16B port, a barrel open at one end mounted on said support and adapted to be arranged in aXial alignment with a Wheel mounting, said barrel having its open end surrounding the end of said mounting and being cut-away in part at said open end to permit viewing of said Wheel mounting, a clamp mounted for adjustment on said barrel having diametrically opposed horizontal sockets thereon, an arm removably mounted in each of said sockets, a bracket adjustable along each arm, a socket in each of said brackets, Wheel engaging means adjustable in each of said last named sockets, and a fluid pressure actuated plunger in said barrel adapted to strike the end of said mounting to urge the Wheel therefrom.

In testimony whereof I aX my signature at l0 South La Salle Street, Chicago, Illinois.

EARL KENDALL.

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