US1752759A - Machine for use in removing tires from wheels and rims - Google Patents

Description

J. B. SMITH April 1, 1930.

MACHINE FOR USE IN REMOVING TIRES FROM WHEELS AND RIMS Filed Dec. 7, 1927 Zlwmmktow V 15.5mm,

Gummy;

Patented Apr. 1, 1930 UNITED STATES PATENT OFFICE JOESPH B. SMITH, F HAVANA, ILLINOIS -mcnmnron USE IN REMOVING 'r nns FROM WHEELS AND Rims Application filed December 7, 1927. Serial No. 238,414.

This invention pertains to machines for holding automobile wheels and wheel-rims, and for expanding and contracting the latter, said invention being'directed to a machine for universal use since wheels and wheel-rims of all types'and sizes may readily be accommodated. 1 i

An advantage of my invention is that an operator. may firmly secure a wheel of the Y disc type/or the hub of any other type of wheel upon a solid supporting part so that a tire which may havebecome frozen may be dislodged and removed by the use of any of the tools usually provided for such purpose, the work being performed with but little effort as compared with older methods. Another advantage is that the machine is capable of either expanding or contracting a rim of the collapsible type.

In the appended drawing,

Figure 1.is an elevation of the machine.

Figure 2 is a horizontal section of the same on line 22, Figure 1.

Figure 3 is an elevation of certain operatmg parts, a portion being shown in section. Figure 4 is an elevation of part of the apparatus shown in Figure 1, in an inverted position showing its application to a Wheel hub, and Figure 5 is an elevation of parts of 39 the machine showing a wheel-rim thereon.

The machine comprises a stand consisting of a table 1 and a series of legs 2 preferably cast en bloc. The said legs diverge from said table forming a support of the tripod type, and preferably said legs consist of spaced parts 2 between which are bell-crank levers 3 pivoted at the knee 4 thereof on pins 4 which extend through both said parts 2 forming a very sturdy support for such levers.

One arm 3 of each lever extends substantially horizontally toward a central point beneath the table 1 while the other arm 3 stands in a substantially upright position, its upper end at times lying outward from the table and it may be shortenough to permit it to swing. beneath the same. The said upper end of each lever 3 is providedwith an extension 5 upwardly and outwardly directed in the plane of said arm, and spacedtherefrom is a hook portion 6 of lesser height, preferably inwardly directed, while outward from said hook portion is a lug 7 which may create a ledge for supporting a wheel-rim.

The table 1 is centrally bored and threaded, not shown, to receive the threaded portion 8 of a rod or shaft 9, Figure 4, the lower end of the rod carrying a head 10 having a series of radial lugs 11 equal in number to the arms 3 of the levers 8, each lug having pivotally suspended therefrom a pair of links 12 whose lower ends pivotally support one of said arms 3. a wear ring 14 may be interposed between said head 13 and said head 10 as in Figure 3, a pin 15,for example, extending through the rod above the head 10. By this or an equivalent structure a swivelconnection between the head 10 and rod is provided. P The upper end of the rod or shaft is pro- The rod or shaft 9l1as a head 13, and

vided with a handle 16, which is removable,

the same having a square socket, for example, not shown, to engage the squared end of said rod as indicated in broken lines at 17 in Figure 1.'

A member having a pressure series of extensions 18, is next provided which has a tapering hub 19 provided with a bore 20 through whichthe rod 9 is slidable, said member being used in either of two positions shown in Figures 1 and 4, there being an abutment such as a pin 21 engaging in any one of a seriesof'holes 22 bored transversely through the said rod to bear upon the member for a purpose to appear.

Any of the forms of wheels or wheel-rims now quite generally used may be readily accommodated on this machine regardless of size or weight. A rim that is split and inpend it when the rod 9 is turned in the proper direction. Where a tire is to be removed from a rim of the so called quick detachable type said rim is lodged upontheledges formed by the lugs 7 by moving the arms to a position where the ledges will support the rim at equidistant points, whereupon the tire may be readily removed. Again, when securing a disc wheel as in Figure 1 the disc is placed upon the table with the member 18, 19.upon it whereupon the pin 21 is placed in one of the holes 22, Figure 1, then by turning the rod uponits threads 8 that engage the table 1 the w said member 18, 19 is clamped upon said disc thus holding the disc securely, the usual opening 23 in said disc permitting the latter to pass over said rod. When a wire wheel or a wheel; of the military type is to be held the member 18, 19 is inverted as in Figure 4, the tapered hub thereof being let into the wheelhub. The clamping of the member thereon then securely holds he hub upon the table. The series of holes in the rod 9 are spaced at short distances so that by inserting the in 21 in the hole nearest the member l8-19 Jut a turn or two will be suliicient to obtain the desired clamping of the wheel.

While I have described and shown the holes and the pin 21 as a means for clamping a: the member l819 upon the wheel itis to be understood that equivalent means may be used as will easily suggest itself to the practical mind, The whole point is, of course, that the said member can be dropped upon the wheel and then clamped. with but the slightest rotative movement of the rod 9 as already stated.

It is clear that with the rim resting solidly upon the ledges formed by the lugs 7 and with the wheel body firmly clamped upon the table, the use of heavy sledges to loosen a frozen tire will not change the position of the wheel. Furthermore, the force of the heavy blows upon the tire isdownwardly through the arms 3 to their pivots and the legs, 2. These strains are therefore wholly imposed upon the stand or table. The threads 8 of the rod ,9 are wholly unaffected and there are no strains on theconnections between the said rod and the arms 3 of the levers. i i

I claim:

p 1. A machine for use in removing tires from wheels including in its construction a stand having a table-top and supporting legs,

aseries of Lv-shaped levers pivoted each at its angle upon one of the legs, one of the arms of each lever having a substantially vertical position, the arm of each said lever hav- R, ing at itsupperendaledgeextendingoutwardly therefrom, a rod extending through the table-top having operative engagement with the other armsof the levers, and said rod having threaded engagement with said table-top, amember to engage over the rod and lie upon a wheel resting upon the table, and means adjustable with respect to the rod to bear upon the member, all being arranged whereby a turn of the rod will clamp the wheel between the member and table-top.

2. In a machine for use in removing tires from wheels, the combination of a table-top and supporting legs therefor, a series of L- shaped levers each pivoted at the angle thereof upon one of the legs, one of the arms of each le ver having a substantially upright position terminating at its upper end in a ledge at a lower level-than thesaid table-top, a rod extending through and threaded in the table-top and operatively connected to the other armof the several levers, a member above the table-top, and meanscarried by the rod above the said memberfor enga ing and forcing the latter d wnwardtoward said ta- -top- ,4

,3. In machine for use in removing tires from wheels and rims, the combination of a table including supporting legs, a series of levers pivoted each on one ofthe legs in a substantially upright position, each including at its upper end a ledge to support the rim of a Wheel from which atire is to be removed, each ledge having a free end sub stantially flush with the outer face ofsaid rim when the latter is mounted thereon, a rod having threaded engagement with a part of the table and operatively connected with the levers for imparting movement thereto on their pivots, means to clamp the rim upon the ledges comprising a member to engage over the rod, and'means carried by the rod adapted to engageupon the member in a 1'0- tative movement of said means with respect to such member.

In testimony whereof I affix my signature.

JOSEPH B. SMITH.

Images