WO2008033277A2

WO2008033277A2 - Mobile tire changing system

Info

Publication number: WO2008033277A2
Application number: PCT/US2007/019573
Authority: WO
Inventors: Kenn J. Bishop; Thomas B. Hoover; Randell L. Theinert
Original assignee: BARGAIN TOOL DEVELOPERS LLC
Current assignee: BARGAIN TOOL DEVELOPERS LLC
Priority date: 2006-09-11
Filing date: 2007-09-07
Publication date: 2008-03-20
Anticipated expiration: 2009-03-11
Also published as: WO2008033277A3

Abstract

An apparatus for mounting/dismounting of tires on wheels; a bead breaker module with elongated pressure clamps/arms pivotally moved by an actuator such that the elongated pressure clamps extend from the perimeter of the tire to a position proximal the tire side and bead; the actuator urges the elongated pressure clamps to disengage the tire bead from the rim. A tire mount/dismount module having a base plate affixed to a wheel including a receiver and drive assembly rotatably affixed to a base plate with a receiver receiving a bead rolling tool which is insertable between a tire bead and wheel rim and which in operation disengages the bead from the rim, or when installing a tire engages the bead to the rim. A bead rolling or tire iron tool has a particular configuration proximal its ends and extensions. A tire-mounting tool includes a roller member mounted on a mounting arm.

Description

Title

MOBILE TIRE CHANGING SYSTEM

Field of the Invention The present disclosure relates to changing automotive and vehicle tires.

The apparatus relates in particular to mounting/dismounting truck tires.

Background of the Invention

Truck tire failure poses time, labor and transit delay. Historical practices required transport of replacement tires and tire changing equipment imposing the labor on the driver of changing the failed tire. More recently trucking companies have provided for communication means allowing a driver to notify a central facility to send assistance. The changing of a truck tire while on the road, by one with experience, requires approximately 20-40 minutes. Tire sales and service companies, having automated equipment, experience truck tire changing at the rate of approximately three per hour. A medium sized tire service company may change forty to fifty truck tires per day requiring sufficient staff for such labor. Patent No. 4,884,611 to Schmidt discloses a tire changing machine; Patent No. 5,269,358 to Ling discloses a tire bead loosening tool and universal rim adapter; Patent No. 5,876,526 Hamade et al discloses an automotive flat tire repair system improvement; Patent No. 4,804,030 to Mandelko discloses a tire bead separator; Patent No. 4,263,958 to Corless discloses a tire mounting, bead seating and inflation apparatus and method of use; Patent No. 5,971,052 to Kliskey discloses a tire mount/dismount bar; Patent No. 5,421,392 to Unrau discloses a tire bead breaker; Patent No. 5,009,257 to Reeves discloses a tire breaker apparatus for all-terrain vehicle tires; Patent No. 4,947,918 to Unrau discloses a tire changer; Patent No. 4,641,699 to Giles et al discloses a tire bead breaking device; Patent No. 4,415,014 to Turpin discloses a bead breaking tool; Patent No. 4,848,731 to Ringo discloses a tire casing spreader; Patent No. 5,649,582 discloses a bead breaking apparatus; Patent No. 3,867,975 to Johnson discloses a tire changing tool; Patent No. 4,787,433 to Thomas discloses a bead breaking device for tractor tires. The present invention is an improvement over this applicant's prior U.S. Patent No. 6,536,501. Summary of the Invention

Changing a tire requires the damaged or worn tire to be removed from a wheel and a replacement tire mounted on the wheel. A tire bead breaker apparatus, a tire mount/dismount apparatus and a bead rolling tool is disclosed.

The first act required to change a tire requires the tire bead, at both sides of the tire, to be disengaged from both sides of the wheel rim. A tire bead breaker module is disclosed comprised of at least two elongated pressure clamps terminating in bead pad clamps. The at least two elongated pressure clamps straddle a tire at the tire perimeter, positioning the at least two bead pad clamps proximal the tire rim and tire side proximal the tire bead. The pressure clamps are urged toward each other, thus applying pressure to the tire at both sides and moving the tire side at the bead to disengage the bead from the tire rim. The pressure clamps, having clamp first ends and clamp second ends, are pivotally mounted on a generally U-shaped mounting bar. The mounting bar has a bar first end and a bar second end. Pivot means pivotally interconnecting at least one pivot point proximal the bar first end and at least one pivot point proximal the bar second end. The bead pad clamps are urged toward the opposing bead pad clamp by a hydraulic, pneumatic or screw driven actuator, and, in the preferred embodiment, by a screw or thread driven actuator, hydraulic actuator positioned between and attached to the at least two elongated pressure clamps proximal the respective clamp second ends.

When the first tire bead is freed from the tire rim, the actuator is reversed to urge the bead pad clamps away from the opposing bead pad clamp. A sidewall stabilizer is slidably positioned intermediate the clamp first end and the clamp second end and, in the retracted position and on the tire side, where the tire bead is freed from the rim, is extended toward and past the clamp first end and past the bead pad clamp to contact the rim. The actuator is again operated to urge the bead pad clamps toward each other. The sidewall stabilizer will encounter the rim and stop movement of the bead pad clamp on the tire side where the bead is freed from the rim and will cause the opposing bead pad clamp to exert force against the opposing bead, causing the opposing bead to break free of the tire rim. The tire mount/dismount module is summarized as follows: a first element is a base plate assembly which is affixed to a wheel so as to be immovable relative to the wheel; a second element is a receiver and drive assembly, which is rotatably affixed to the base plate assembly and which has drive means to cause rotation of the receiver and drive assembly relative to the base plate assembly; a third element is a receiver which receives or which comprises a bead rolling tool; the bead rolling tool is fixedly received between a wheel and a tire bead; the bead rolling tool turns as the receiver and drive assembly is rotated, thus disengaging the bed from the wheel or reengaging the tire to the wheel when installing a tire. Upon disengagement of the bead from the rim, a tire mount/dismount module is employed as disclosed here. The bead rolling tool is summarized as follows: the bead rolling tool has a bead rolling tool slot which is received by a receiver and operates to remove and mount a tire on a wheel. A bead rolling tool first end slot bearing and a bead rolling tool second end slot bearing reduces friction and the likelihood of rim damage during removal and mounting operations.

There is also disclosed herein a tire mounting tool for use with a tire mounting/dismounting machine, comprising: a mounting arm assembly configured at one end to be received into a tool receiving portion of the machine; and a roller member mounted for rotation in the vicinity of the other end of the mounting arm assembly, wherein the mounting arm assembly is configured such that the roller member rotates about an axis which is approximately at right angles to the axis of the wheel on which the tire is to be mounted when the machine is operatively positioned adjacent the wheel, and further such that a portion of the peripheral surface of the roller member is slightly inboard between the inner and outer rim edges of the wheel, such that as the mounting arm is rotated by the machine, the roller member forces a tire bead onto the wheel when a portion of the bead has been previously positioned between the inner and outer rim edges.

There is further disclosed herein another tire bead breaking apparatus, comprising: a base assembly adapted to be supported on a stable surface; a bead breaker actuator assembly mounted on the base assembly; and a pair of extending arm members, each including a bead contacting element near the distal ends thereof, connected to the actuator assembly and spaced so as to extend, respectively, along the opposing sides of a tire when the tire is in an operative position relative to the bead breaker apparatus, wherein operation of the actuator assembly, at least one arm member moves toward the tire sufficiently at one side of the tire that the bead contacting element on the one arm breaks the tire bead's contact with the wheel rim on which the tire is mounted at said one side, while the other arm is in contact with the rim of the wheel on the other side of the tire. Brief Description of the Drawings

The foregoing and other features and advantages of the present disclosure will become more readily appreciated as the same become better understood by reference to the following detailed description of the preferred embodiment and additional embodiments of the disclosure when taken in conjunction with the accompanying drawings, wherein:

Figure 1 is a perspective view of the tire bead breaker module (110) illustrating the mounting bar (1000), mounting bar first and second ends (1500) and (1600), pressure clamps (2000) and actuator (4000).

Figure 2 is a perspective view of the tire bead breaker module illustrating the sidewall stabilizer (3000) extended to contact the rim (7) when the remaining pressure clamp (2000) exerts force on the bead.

Figure 2A is an elevation section view showing the tire bead (8). Figures 3, 4, 5 and 6 are front elevation, top plan, side elevation and exploded views of the bread breaker module.

Figure 7 is an exploded view of the tire mount/dismount module showing tire mount/dismount unit (7000), movable rotating drive means (7130), drive gear (7112), stationary rotating means (8200) as a stationary ring gear (8200), drive means (7130), safety cover (7116), safety cover center shall aperture (7118), a center shaft (7171), center shaft top (7173), center shaft top lock (7174), center shaft top lock bearing surface (7175), center shaft bottom (7176), center shaft handle shaft (7178), center shaft aperture (7179), receiver (7200), receiver first end (7210), frame affixing means (7212). Receiver second end (7220), receiver center (7228), receiver center aperture (7230), bead rolling tool receiver (7240), receiver retaining pin aperture (7241), receiver retaining pin (7242), bead rolling tool stop (7245), base plate assembly (8000), base plate assembly frame (8050), base plate assembly center aperture (8075), center aperture bottom (8077), center aperture bottom bolt hole (8079), planar base plate assembly bottom (8080), outer base plate assembly rim (8070), base plate rim inner surface (8072), base plate rim outer surface (8074), rim securing flange slots (8055), rim slot (8065), ratchet pawl aperture (8068), rim securing flange (8100), rim securing flange first end (8110), rim securing flange first end right end (8111), right end width (8112), rim securing flange first end middle (8115), middle width (8116), rim securing flange first end left end (8117), left end width (81 18), rim securing flange first end rim mating surface (8119), rim securing flange second end (8120), rim securing flange top (8130), rim securing flange bottom (8140), tensioning slot flange (8150), slot flange top (8155), tensioning slot flange bearing (8160), ratchet gear ring (8200), ratchet gear periphery (8230), ratchet gear teeth (8235), ratchet gear center (8240), a ratchet gear top side (8250), a ratchet gear bottom (8260), ratchet gear slot (8220), ratchet pawl (8270), ratchet handle (8272), ratchet spring (8274), ratchet pawl release handle (8275), ratchet pawl pivot (8280), stationary ring gear (9200), stationary ring gear periphery (9230), stationary ring gear teeth (9235), stationary ring gear inner periphery (9240), inner periphery detent (9245), a stationary ring gear top side (9250), a stationary ring gear bottom (9260) and a bead rolling tool (9500).

Figure 7A illustrates the angular relationship of the bead rolling tool (9500) to the receiver (7240). Figure 8 is a bottom perspective view of the tire mount/dismount module.

Figure 9 is a side elevation view of the tire mount/dismount module.

Figures 10 and 11 are a perspective view of the center shaft (7171) and a bottom plan view of the center shaft bottom (7176) and center shat~ aperture (7179).

Figures 12 and 13 are a perspective view and a section view of the base plate assembly frame (8050). Figures 14, 15, 16 and 17 illustrates the rim securing flange (8100) showing the rim securing flange first end (8110), rim securing flange first end right end (8111), right end width (8112), rim securing flange first end middle (8115), middle width (8116), rim securing flange first end left end (8117), left end width (8118) and rim securing flange first end rim mating surface (8119). Also seen is the rim securing flange second end (8120), rim securing flange top (8130), rim securing flange bottom (8140), tensioning slot flange (8150), slot flange top (8155) and tensioning slot flange bearing (8160).

Figure 18 shows the stationary ring gear (9200) having stationary ring gear periphery (9230), stationary ring gear teeth (9235), stationary ring gear inner periphery (9240), inner periphery detent (9245), a stationary ring gear top side (9250) and a stationary ring gear bottom (9260). Figure 19 illustrates the drive gear (7112).

Figure 20 illustrates the ratchet gear ring (8200).

Figures 21, 22, 23 and 24 show the receiver (7200), receiver top (7205), receiver hub (7207), receiver first end (7210), receiver second end (7220), receiver center (7228), receiver center aperture (7230), receiver arm (7238), bead rolling tool receiver (7240), receiver retaining pin aperture (7241), receiver retaining pin (7242), bead rolling tool stop (7245).

Figure 21A shows the bead rolling tool receiver (7240) as a casting of one piece illustrating the receiver slot (7246).

Figures 26 and 26A are top and bottom perspective views of the bead rolling tool (9500).

Figures 27, 28 and 29 are side elevation, top plan and bottom plan views of the bead rolling tool (9500).

Figures 30, 31, 32, 33 and 34 are section views from Figure 27 of the bead rolling tool (9500).

Figures 35, 36, 37 38, 39, 40, 41, 42 and 43 are illustrations of the bearing structures for the bead rolling tool (9500).

Figure 44 is an exploded view of a bead rolling tool.

Figure 45 is a partial cross-section elevational view of the tool of Figure 44.

Figure 46 is a cross-sectional exploded view of a tire relative to a wheel.

Figure 47 is a partial cross-sectional elevational view of a tool of Figures 44 and 45 with a variation in one portion thereof.

Figure 48 is a perspective view of another embodiment of the tire bead breaking tool in a folded up position.

Figure 49 is a perspective view of the tool of Figure 48 in use on one side of a tire, showing the bead breaking action of the tool.

Figure 50 is a perspective view of the tool being used on the opposing side of the tire from Figure 49.

Detailed Description

BEAD BREAKER APPARATUS: The tire changing and bead breaker apparatus comprises a tire bead breaker module (110), illustrated at Figures 1-6, having bead breaking means to apply pressure to the both sides of a tire (6) having sides (9) and tire beads (8); the bead breaking means causing the tire bead (8) at each side of the tire (6) to disengage from the rim (7) of a wheel (4). In the preferred embodiment the bead breaking means is comprised of at least two pressure clamps (2000); each at least two pressure clamps (2000) having a clamp first end (2100) and clamp second end (2200); the at least two pressure clamps (2000) positioned such that the respective clamp first ends (2100) are proximal the respective tire side (9); each at least two pressure clamps (2000) having a force means to urge the respective clamp first end (2100) against the respective tire side (9). In the preferred embodiment a bead pad clamp (3300) is rigidly affixed by bead pad clamp affixing means proximal the respective clamp first ends (2100); the bead pad clamp (3300) is generally elongated and sized and oriented, in its attachment proximal the respective clamp first end, to be received at the tire (6) side (9) generally parallel with the rim (7) and tire sides (9). The bead pad clamp (3300) will generally have a flat to convex surface which contacts the fire side (9). Bead pad clamp affixing means are general mechanical interconnection means including welding, bolt/nut, screw, rivet and molding. It will be appreciated that the bead pad clamp (3300) may be cylindrical with a circular or elliptical cross-section with a convex surface facing the tire side (9). It will be appreciated that the bead pad clamp (3300) may be semicircular or semi-elliptical in cross-section so long as a convex surface faces the tire side (9). The bead pad clamp (3300) may, as well, have dimensions and shape which will be appreciated by those of ordinary skill in the tire arts such that sharp edges will not contact a tire side or sidewall which may damage the tire side (9) as force is exerted against the tire side (9). In the preferred embodiment, each of the at least two pressure clamps

(2000) will be comprised of an elongated member (2050) generally composing a shaft, tube, rod or bar. The at least two pressure clamps (2000) will be composed of a material having sufficient structural integrity as to allow forces great enough to disengage the tire bead from the wheel rim and will thus likely be formed of metal. However, other materials may be utilized including composite materials, including Carbon Fibre and Carbon-Carbon Composites, woods, laminated structures and other material recognized by those of ordinary skill in the art. In the preferred embodiment the at least two pressure clamps (2000) have clamp first ends (2100) and claim second ends (2200) with the bead pad clamp (3300) positioned proximal each of the clamp first ends (2100).

A sidewall stabilizer (3000) is movably and removably affixed to the elongated member (2050) proximal to the clamp first end (2100) and bead pad clamp (3300) extending downwardly toward clamp second end (2200). The sidewall stabilizer (3000) is planar and extends outwardly and generally orthogonal to the movement of the at least two pressure clamps (2000). The sidewall stabilizer (3000) has a stabilizer first part (3005), a stabilizer first side (3010), a stabilizer second side (3020), a stabilizer top (3030), a stabilizer bottom (3040) and at least one stabilizer slot (3250) from the stabilizer first side (3010) to the stabilizer second side (3020). The stabilizer first part (3005) is composed of rigid materials generally metals. A stabilizer rim protector (3050), composed generally of materials not likely to damage a wheel rim (7) including, in the preferred embodiment, plastics, is formed to the same shape, including apertures and slots, as the stabilizer first part (3005) and is affixed, by stabilizer rim protector means, to the stabilizer first part (3005) at the stabilizer bottom (3040). Rim protector affixing means includes at least one rim protector rivet (3052), other mechanical equivalents and adhesives as illustrated in Figure 6. The stabilizer rim protector (3050) fulfills the function of bearing against the wheel rim (7) for the purpose of reducing the likelihood of damaging or scarring the rim (7).

The at least one stabilizer slot (3250), formed both in the sidewall stabilizer (3000) and the stabilizer rim protector (3050), is oriented, when the sidewall stabilizer (3000) is movably and removably affixed to the elongated member (2050), parallel to the elongated member (2050), intermediate the stabilizer top (3030) and the stabilizer bottom (3040). In the preferred embodiment at least one bolt (3200) is received through the at least one stabilizer slot (3250), the bolt (3200) having threads received by the elongated member (2050) by at least one threaded slot bolt aperture (2055) having threads. The bolt (3250) head being wider than the at least one stabilizer slot (3250) thereby retaining the sidewall stabilizer (3000) proximal the elongated member (2050). In the preferred embodiment there are at least two stabilizer slots (3250), each receiving a bolt (3250) having a head wider than the at least two stabilizer slots (3250) thereby retaining the sidewall stabilizer (3000) proximal the elongated member (2050).

Each of said bolts (3200) having threads received by the elongated member (2050) by at least one threaded slot bolt aperture (2055) having threads.

The sidewall stabilizer (3000) is movable relative to the elongated member(2050). The sidewall stabilizer (3000) is retained in at least one position relative to the elongated member by at least one handle and pin (3100) wherein pin means is received through at least one pin aperture (3110) where said at least one pin aperture (3110) extends from the stabilizer first side (3010) to the stabilizer second side (3020) and through the stabilizer rim protector (3050). Said at least one pin aperture (3110) is aligned with at least one elongated member pin aperture (2060) formed in the elongated member (2050). The at least one handle and pin (3100) is, in the preferred embodiment, a spring plunger detent which is spring urged from the stabilizer first side (3010) toward and into the at least one elongated member pin aperture (2060). The at least one handle and pin (3100) is retained by a collar relative to the sidewall stabilizer (3000) and, for movement of the sidewall stabilizer (3000) is withdrawn by pulling the handle outwardly from the sidewall stabilizer (3000) thus withdrawing the pin from the at least one elongated member pin aperture (2060) thereby allowing the sidewall stabilizer (3000) to be slidably moved toward the clamp first end (2100) or toward the clamp second end (2200). Upon slidable movement of the sidewall stabilizer (3000) to the desired position the handle of the handle and pin (3100) is released thereby allowing the spring plunger detent to insert the pin of the handle and pin (3100) into one of the at least one elongated member pin apertures (2060) in the preferred embodiment there are at least two elongated member pin apertures (2060).

Generally one tire bead (8) will break from the rim (7) prior to the other tire bead (8). When the first tire bead (8) is freed from the tire rim (7) the actuator (4000) is reversed to urge the bead pad clamps (3300) away from the opposing bead pad clamp (3300). The sidewall stabilizer (3000), being slidably positioned intermediate the clamp first end (2100) and the clamp second end (2200) and, in the retracted position and on the tire side (9) where the tire bead (8) is freed from the rim (7), is extended toward and past the clamp first end (2100) and past the bead pad clamp (3300). The sidewall stabilizer (3000) is slidably positioned intermediate the clamp first end (2100) and the clamp second end (2200). With the bead pad clamps in the retracted position the sidewall stabilizer (3000), on the tire side (9) where the tire bead (8) is freed from the rim (7), is extended, using a handle and pin means (3100) toward and past the clamp first end (2100) and past the bead pad clamp (3300). The sidewall stabilizer (3000) functions to stop movement of the bead pad clamp (3300) and to reduce potentially damaging forces, particularly where the wheel is composed of aluminum, imparted by the bead breaker module (110) against the wheel rim (7).

The actuator (4000) is again operated to urge the bead pad clamps (3300) toward each other. The sidewall stabilizer (3000), extending beyond the bead pad clamp (3300) will encounter the rim (7) and stop movement of the bead pad clamp (3300) on the tire side (9) where the bead (8) is freed from the rim (7) and will cause the opposing bead pad clamp (3300) to exert force against the opposing bead (8) causing the opposing bead (8) to break free of the tire rim (7).

It will be seen for the preferred embodiment, that the elongated member (2050) is of a length such that the at least two pressure clamps (2000) will straddle a tire (6) at the tire perimeter (17) such that the elongated member (2050) extends the clamp first ends (2100) toward and proximal the tire side (9) for proper placement of the bead pad clamp (3300) proximal the tire side (9). Thus at the perimeter (17) the mounting bar (1000), clamp second ends (2200) and actuator (4000) will be proximal the tire perimeter (17).

The at least two pressure clamps (2000) are, in the preferred embodiment, mounted on a mounting bar (1000) having a mounting bar first end (1500) and mounting bar second end (1600); the at least two pressure clamps (2000) are pivotally affixed by pivotally affixing means, intermediate the said clamp first ends (2100) and claim second ends (2200), to the mounting bar (1000) such that one of said at least two pressure clamps (2000) is proximal the mounting bar first end (1500) and that one of said at least two pressure clamps (2000) is intermediate the pivotally affixed pressure clamp (2000) proximal the mounting bar first end (1500) and the mounting bar second end (1600); the at least two pressure clamps (2000) pivotally affixed such that the respective clamp first ends (2100) oppose each other and the respective clamp second ends (2200) oppose each other; force means (4000) composed of an actuator (4000) having means of extension and retraction is affixed proximal the clamp second ends (2200) such that actuation of said actuator (4000) causes the respective at least two pressure clamps (2000) to pivot. Actuation of said actuator (4000) causes the respective at least two pressure clamps (2000) to pivot such that the clamp first ends (2100) move toward each other in extension and away from each other in retraction.

In the preferred embodiment the mounting bar (1000) has at least one mounting bar pivot aperture (1400) proximal the mounting bar first end (1500) and at least one mounting bar pivot aperture (1400) proximal the mounting bar second end (1600). Each of the elongated members (2050) having a second pivot aperture (2250) or bushing. The second pivot aperture (2250) and the respective mounting bar pivot aperture (1400) oriented and sized to receive pivot fixing means (2260) comprised of rotatable bolt and nut or shaft and pin means.

• Those of ordinary skill in the actuator arts will appreciate that a variety of electric, hydraulic, pneumatic, screw or thread and other actuators (4000) providing movement by cylinder and piston, solenoid and shaft, gear means, screw and or thread means and other means are available for attachment to and providing force to cause the respective at least two pressure clamps (2000) to pivot and to move toward and away from the other at the clamp first ends (2100). In the preferred embodiment, the actuator (4000) is elongated and composed of rigid tubular or rod stock providing a actuator shaft (4050) having a screw and or thread means. The actuator shaft (4050) has an actuator first end (4100) and a actuator second end (4110) with the actuator shaft (4050) being threaded from the actuator first end (4100) toward the actuator second end (4110) to a point intermediate the actuator first end (4100) and the actuator second end (41 10). In the preferred embodiment a nut (4400) is rigidly affixed by nut affixing means at the actuator first end (4100) and at the actuator second end (4110). The actuator shaft (4050) being reverse threaded from the actuator second end (4110) toward the actuator first end (4100). A threaded cylindrical collar (4300) received by threads of the actuator (4000) proximal the actuator first end (4100) and a reverse threaded cylindrical collar (4300) received by the actuator proximal the actuator second end (4110). A pin (4310) rigidly affixed by pin affixing means including welding, machining and other means known to those of the mechanical arts, to and extending from each cylindrical collar (4300) generally orthogonal to the actuator (4000). Each of the elongated members (2050) having a first pivot aperture (2210) or bushing proximal the clamp second end (2200) oriented and sized to rotatably receive the pin (4310) extending from the respective collar (4300). The pin (4310) secured by pin securing means from disengaging from the respective pivot aperture (2210).

As the actuator (4000) causes the elongated members (2050) to move the claim second ends (2200) will ascribe an arc thus moving the actuator shaft (4050) upward and downward relative to the mounting bar (1000). An actuator shaft yoke neck (4060) is affixed intermediate the actuator first end (4100) and the actuator second end (4110). The actuator shaft yoke neck (4060), in the preferred embodiment, is formed as a pulley shape or has a "V" shaped cross-section. A mounting bar yoke (1100), intermediate the mounting bar first end (1500) and the mounting bar second end (1600) downwardly extends such that the mounting bar yoke (1100) is received by the actuator shaft yoke neck (4060) allowing the actuator shaft yoke neck (4060) to move upwardly and downwardly. A mounting bar support (1700) which supports the tire bead breaker module (110) when the tire bead breaker module (110) is used. At least one mounting bar support bar (1705), which in the preferred embodiment is elongated, has a mounting bar support first end (1710) and a mounting bar support second end (1720). The mounting bar support bar (1705) is pivotally mounted to the tire bead breaker module (110) proximal the mounting bar first end (1500) or the mounting bar second end (1600) via a mounting bar pivot bolt (1735) rotatably received by a mounting bar support aperture (1740) in the mounting bar support bar (1705) which is aligned with a mounting bar pivot support aperture (1730). The mounting bar pivot support aperture (1730) is formed in a mounting bar support frame (1750) comprised, in the preferred embodiment, of a triangular frame proximal the mount bar first end (1500) or the mounting bar second end (1600). At least one mounting bar support flame detent aperture (1760) formed in the mounting bar support frame (1750) and or the mounting bar frame (1000) to receive the pin of a handle and pin (3100). When in use the handle and pin (3100) will be released to allow the mounting bar support bar (1705) to extend outwardly from the mounting bar frame (1000), be secured generally at an acute angle to the mounting bar frame (1000) and provide a secure member to retain the tire bead breaker module ( 110) in a stable position as the actuator (4000) is operated. Upon completion of use of the tire bead breaker module (l lθ)the handle and pin (3100) is released, the mounting bar support bar (1705) is returned to a position upright and parallel to the mounting bar frame (1000) with the pin of the handle and pin (3100) received into at least one mounting bar support aperture (1740). It will be recognized that the actuator (4000) may be positioned in other locations such as between the at least two elongated members (2050) intermediate the clamp first ends (2100) and the mounting bar (1000) and mounting bar pivot aperture (1400). In alternative embodiments the actuator may be pneumatic, hydraulic or solenoid piston and shaft configuration. Additionally, it will be seen that one or more actuators may be utilized providing, e.g. for an actuator (4000) proximal each clamp first end (2100) which urges force to extend or retract a bead bad clamp (3300) toward or away from a tire side (9).

The sidewall stabilizer (3000) has a handle and pin means (3100) which allows extension and retraction of a pin of the handle and pin means (3100). The handle and pin means (3100) is such that the pin of the handle and pin means 0100) is received into at least one elongated member pin aperture (2060) at the elongated member (2050) thereby retaining the sidewall stabilizer (3000) in a fixed position relative to the elongated member (2050) when the pin of the handle and pin means (3100) is extended. A handle of the handle and pin means (3100) extends outwardly from the sidewall stabilizer (3000) and the tire side (9) and functions as a handle to move the sidewall stabilizer (3000) relative to the elongated member (2050). The handle and pin means (3100), in the preferred embodiment, is formed by a handle and pin (3100) which is affixed by handle and pin affixing means at a pin aperture (31 10) formed from the stabilizer first side (3010) to the stabilizer second side (3020). The handle and pin (3100) is spring urged toward the elongated member (2050) for the extension of the pin of the handle and pin (3100) into the at least one elongated member pin aperture (2060). Outwardly exerted force on the handle and pin (3100), generally by grasping and pulling outwardly the handle of the handle and pin (3100) will, in the preferred embodiment, retract the pin of the handle and pin (3100) from the at least one elongated member pin aperture (2060). With the pin of the handle and pin (3100) retracted force on the handle of the handle and pin (3100) toward the clamp first end (2100) will cause the sidewafl stabilizer (3000) to move toward the clamp first end (2100) with the bolt (3200) bearingly received by the at least one stabilizer slot (3250) and the sidewall stabilizer (3000) retained proximal the elongated member (2050). At least one second elongated member pin aperture (2060) to receive the pin of the handle and pin (3100) when the sidewall stabilizer (3000) is moved toward and past the bead clamp (3300).

With the pin of the handle and pin (3100) retracted force on the handle of the handle and pin (3100) toward the clamp second end (2200) will cause the sidewall stabilizer (3000) to move toward the clamp second end (2200) with the bolt (3200) bearingly received by the at least one stabilizer slot (3250) and the sidewall stabilizer (3000) retained proximal the elongated member (2050) and distal to the bead clamp 0300.

Figures 48-50 show another embodiment of the bead breaking tool, referred to generally at (5000). The bead breaking tool (5000) includes a surface support bar (5100). In the embodiment shown, surface support bar (5100) is aluminum, although it could be steel or other similar material and is approximately 30 inches long by 2 inches wide, Vi inch thick, and is slightly curved at both ends thereof. A mounting bar (5200) is rotatably connected to the surface support bar (5100) near one end (5120) by means of a pin (5130). Mounting bar (5200) is U-shaped, made from aluminum, and is wider than the width of the tire. It includes two leg portions (5220) and (5230) and an intermediate joining portion (5240).

Extending from the lower surface of leg portion (5220) is a triangular section (5221). Leg portion (5220) and surface support bar (5100) each have a reinforcing member (5250) and (5150), respectively. A holding pin (5140) is positioned in a side edge surface (5150) of reinforcing member (5150) and support bar (5100). When the mounting bar is in its lowered position such that leg portion (5220) becomes co-planar with support bar (5100), an opening (not shown) in reinforcing member (5250) and mounting bar (5200) comes into registry with a corresponding opening in reinforcing member (5150) and support bar (5100) such that the mounting bar (5200) and the support bar (5100) can be locked together in a folded condition by insertion of holding pin (5140).

When the holding pin (5140) is removed, mounting bar (5200) is rotatable about pin (5130) until the operative angular relationship between mounting bar (5200) and support bar (5100) is achieved. Typically, this will be about 40°, but can vary within a range of35°-55°.

Triangular section (5221) includes an opening therethrough at the lower edge thereof to receive holding pin (5140), in order to stabilize the angular relationship between mounting bar (5200) and support bar (5100) in the operative position.

The bead breaking tool (5000) also includes two arms (5300) and (5400) which are pivotally mounted about pivot pins (5500) and (5600) to intermediate portion (5240) of the mounting bar. Intermediate portion 5240 includes a pair of spaced receiving portions (5241) and (5242) into which a portion of arms (5300) and (5400) fit. The pivot pins (5500) and (5600) extend through these receiving portions and the fitted portion of arms (5300) and (5400).

Each arm (5300 is exemplary) includes a straight portion (5310) and an angled portion (5320) which angles toward the other arm. Arm (5300) pivots about a point (the fitted portion) where straight portion (5310) and angled portion (5320) meet. The distal or free end (5321) of angled portion (5320) is connected to one end of a hydraulic cylinder (5800). Hydraulic cylinder (5800) extends between the distal free ends of the angled portion of both arms. The angled portions of arms (5200) and (5400) are rotatably connected to the ends of the air cylinder (5800) by means of connecting pins (5820 and 5830)

The straight portion (5310) of arm (5300) becomes plate-like toward the distal end (5311) thereof, increasing in width to the distal end, where it is approximately 6 inches wide. At the distal end (531) of straight portion (5310) are contact members (5350), which extend across the width of the straight portion at that point, although it could be less than the width thereof or extend beyond the edges of the straight portion. Two contact members for each arm are shown although one is sufficient. The surface configuration of the contact elements can vary, including flat, or curved, e.g. convex. In operation, the bead breaking tool (5000) is positioned so that the arms (5300) and (5400) extend along both sides of the tire (5900). It is typically positioned such that the contact member on one arm is inside (above) the wheel rim (5700), while the contact member on the other arm contacts the tire adjacent the wheel rim (5700). This arrangement protects the rim on one side of the wheel while the bead of the tire on the other side of the wheel is being moved away (broken) from the wheel rim. Figure 49 shows the contact element on the arm in position to break the tire bead on one side of the tire, while Figure 50 shows the contact element on the other arm in position to contact the wheel rim. The hydraulic cylinder (5800) is operated by a source of compressed air, forcing the straight portions of both arms (5300) (5400) toward each other, against the tire and wheel rim, respectively. The bead on one side of the tire is broken by this action of the tool. If the bead is not completely broken, the wheel is rotated and the tool again operated, squeezing against the bead. After the bead is broken, the hydraulic cylinder is reversed, such that arms (5300) and (5400) move away from each other and the sides of the tire.

The tool is then canted relative to the tire in an opposing direction, such that the contact element on arm (5400) contacts the bead adjacent the wheel rim on its side of the tire, while the contact element on arm (5300) contacts the rim of the wheel on the opposing side of the tire. The hydraulic cylinder (5800) is again energized, forcing the arms toward each other, with the action of arm (5400) breaking the bead on that side of the tire. After the bead is broken from the wheel rim, the hydraulic cylinder (5800) is de-energized such that the arms (5300) (5400) move away from each other and from the tire, permitting the bead breaking tool (5000) to be removed. The tire is now ready to be removed from the wheel using the bead rolling tool described below.

THE TIRE MOUNT/DISMOUNT MODULE: The structure of the tire mount/dismount module (60), shown at Figure 7, is summarized as follows: a first element is a base plate assembly (8000), which is affixed to a wheel (4) so as to be immovable; a second element is a receiver and drive assembly (7100), which is rotatably affixed to the base plate assembly (8000) and which has drive means to cause rotation of the receiver and drive assembly (7100) relative to the base plate assembly (8000); a third element is a receiver (7200) which receives or which comprises a bead rolling tool (9500); the bead rolling tool (9500) is received between a wheel (4) and a tire bead (8); the bead rolling tool (9500) tunas as the receiver and drive assembly (7100) is rotated thus disengaging the bead (8) from the wheel (4) or re-engaging the tire (6) to the wheel when installing a tire.

The base plate assembly (8000), seen at Figures 7 to 9, 12 to 13 to 17, is comprised of a base plate assembly frame (8050) having a base plate assembly center aperture (8075). The base plate assembly (8000) has a planar base plate assembly bottom (8080) with an upstanding outer base plate assembly rim (8070). The outer base plate assembly rim (8070) having a base plate rim inner surface (8072) and a base plate rim outer surface (8074). At least two rim securing flange slots (8055) are equidistantly separated extending from proximal the base plate assembly center (8075) to the outer base plate assembly rim (8070). A rim slot (8065) through the base plate assembly rim (8070) from the base plate rim inner surface (8072) to the base plate rim outer surface (8074) is aligned with the at least two rim securing flange slots (8055).

The rim securing flange (8100), illustrated at Figures 7 to 9 and 14 to 16, is elongated having a rim securing flange first end (8110), a rim securing flange second end (8120), a rim securing flange top (8130), a rim securing flange bottom (8140) and a tensioning slot flange (8150). The tensioning slot flange (8150) extends upwardly from the rim securing flange top (8130), having a tensioning slot flange top (8155) most distal to the rim securing flange top (8130) and having a tensioning slot flange bearing (8160) intermediate the rim securing flange top (8130) and slot flange top (8155). The slot flange top (8155) is immovably affixed to the tensioning slot flange bearing (8160) distal to the rim securing flange top (8130) by flange affixing means including pins, threads, welding and other affixing means known to those of the mechanical arts.

Each of the rim slots (8065) and the at least two rim securing flange slots (8055) are sized to receive and guide a rim securing flange (8100) at a rim securing flange second end (8120). Each rim securing flange (8100) having a rim securing flange bottom (8140) which is slidably and bearingly received and guided by one of the at least two rim securing flange slots (8055).

Seen at Figures 7 to 9 and 18 to 20 is a rotating means comprised of a movably rotating drive (7112) rotatably interrelated to a stationary rotating means (9200) and the movable rotating drive (7112) is rotatably affixed to the receiver and drive assembly (7100). The movable rotating drive (7112) is, in the preferred embodiment, comprised of a drive gear (7112) rotatably interrelated to a stationary rotating gear (9200) comprised, in the preferred embodiment, of a stationary ring gear (9200) having gear teeth (9235) at a stationary ring gear periphery (9230), a stationary ring gear top side (9250) and a stationary ring gear bottom (9260). At least one stationary ring gear aperture (9300) is formed from the stationary ring gear top side (9250) to the stationary ring gear bottom (9260). The stationary ring gear (9200) has a stationary ring gear inner periphery (9240) having at least one inner periphery detent (9245). In the preferred embodiment at least one inner periphery detent (9245) for each of the at least one rim securing flange (8100) .

In the preferred embodiment, the movable rotating drive means (7112) is rotated by at least one drive means (7130) composed, for example, by an electric, hydraulic and or pneumatic motor (7130) seen at Figures 7 to 9, which rotates the drive gear (7112) which is in gear contact with the stationary ring gear (9200) thereby causing the drive means (7130), movable rotating drive means (7112) or drive gear (7112) to rotate relative to the stationary ring gear (9200). The receiver (7200) is affixed to a safety cover (7116) which is rotated as the drive gear (7112) is rotated. The figures depict the drive means (7130) as extending from the safety cover (7116). Those of ordinary skill in the machine arts will appreciate that the structure of rotating one structure in relation to another may be accomplished by a variety of methods including, e.g. by a pulley and belt means, a ratchet means and by other methods. It will be appreciated that the at least one movable rotating drive means (7112) may be the equivalent of or provide an equivalent function as a ring gear (71 12) which rotates while a drive gear or stationary rotating means (7112) remains stationary. Those of ordinary skill in the art will recognize that the rotating means including drive means (7130) may be positioned central to the Tire Mount/Dismount Module (60) with rotating drive means (71 12) rotatably interrelated to a stationary rotating means (8200) structured such that the rotating drive means (7112) is a drive gear interrelated to a ring gear and, where desired, to a center shaft (7171) or constitutes other rotating means interrelated to gear means and/or a center shaft (7171).

A ratchet gear (8200), seen at Figures 7-9 and 20, is planar, having ratchet gear teeth (8235) at a ratchet gear periphery (8230), a ratchet gear center (8240), a ratchet gear center shaft aperture (8245) at the ratchet gear center (8240), a ratchet gear top side (8250), a ratchet gear bottom (8260) and at least one ratchet gear slot (8220) from the ratchet gear top (8250) to the ratchet gear bottom (8260) and extending from proximal the ratchet gear center (8240) to proximal the ratchet gear periphery (8230). At least one ratchet gear aperture (8300) is formed from the ratchet gear top side (8250) to the ratchet gear bottom (8260), the ratchet gear center shaft aperture (8245) rotatably receiving the center shaft (7171). An elongated ratchet handle (8272) having a ratchet pawl (8270) distal from a ratchet pawl release handle (8275).

The elongated ratchet handle (8272) is pivotally affixed by pawl affixing means at a ratchet pawl pivot (8280). In the preferred embodiment, the ratchet pawl pivot (8280) is upstanding from the base plate assembly bottom (8080) proximal the base plate assembly rim (8070). A ratchet pawl release handle (8275) extends through a ratchet pawl aperture (8068) at the base plate assembly rim (8070). In the preferred embodiment, the ratchet pawl is spring-urged against the ratchet gear teeth (8235) by a ratchet spring (8274). It will be appreciated that those of ordinary skill in mechanical arts will know that a ratchet spring (8274) may be positioned intermediate the ratchet pawl (8270) and the ratchet pawl pivot (8280) or distal from the ratchet pawl pivot (8280) and the ratchet pawl (8270), thereby pushing or pulling the elongated ratchet handle (8272) so as to urge the ratchet pawl (8270) into ratchet gear contact with the ratchet gear teeth (8235).

In the preferred embodiment, the ratchet gear (8200), as illustrated at Figures 7-9 and 20, is immovably affixed to the stationary ring gear (9200) by gear- affixing means comprising bolts, screws, welding, formation by molding or machining. In the preferred embodiment, the ratchet gear (8200) is immovably affixed to the stationary ring gear (9200) by bolts received by the at least one ratchet gear aperture (8200) aligned with the at least one stationary ring gear aperture (93), such that the ratchet gear (8200) and the stationary ring gear (9200) are concentric and such that the ratchet gear bottom (8260) is proximal the stationary ring gear bottom (9260). In the preferred embodiment, the at least one ratchet gear aperture (8300) comprises a plurality of ratchet gear apertures (8300) and the at least one stationary ring gear aperture (9300) comprises a plurality of stationary ring gear apertures (9300).

In the preferred embodiment, the at least one ratchet gear slot (8220), seen at Figure 20, is a spiral with increasing radius from proximal the ratchet gear center (8240) to proximal the ratchet gear periphery (8230). However, those of ordinary skill in the arts will appreciate that a constant radius and other variable radius shapes will be found in alternate embodiments of the at least one ratchet gear slot (8220).

In an alternative embodiment, the at least one rim securing flange (8100) will be comprised of at least two securing flanges (8100) equidistantly spaced and extending from the base plate assembly frame (8050) to engagement of the rim (7) by the at least two securing flanges (8100). In this alternative embodiment, at least two ratchet gear slots (8110) are formed, each receiving a tensioning slot flange (8150) from the respective securing flange (8100).

The tensioning slot flange bearing (8160) is, in the preferred embodiment, of rod or tube construction and is sized to be bearingly received by the at least one ratchet gear slots (8220). The slot flange top (8155) is dimensioned to have a top width greater than a slot width of the at least one ratchet gear slots (8220) in order to retain the tensioning slot flange (8150) and the tensioning slot flange bearing (8160) in bearing and movement relationship with the at least one ratchet gear slot (8220). The flange top (8130) is planar and bears on the ratchet gear bottom (8260).

In the preferred embodiment, the at least one rim securing flange (8100) will be comprised of at least three securing flanges (8100), shown at Figures 7-9, equidistantly spaced and extending from the base plate assembly frame (8050) to allow engagement of rim (7) by the at least three securing flanges (8100). It is appreciated that the spacing of the at least one securing flanges (8100) need not be equidistantly spaced.

As seen at Figures 14 to 17, the at least one rim securing flange first end (8110), in the preferred embodiment, is "C" shaped to engage the rim (7) which is generally circular or semi-circular in cross section. In the preferred embodiment at least three ratchet gear slots (8220) are formed each receiving a tensioning slot flange (8150) from the respective securing flange (8100).

The rotation of the ratchet gear (8200) slidably and bearingly acts on the at least one ratchet gear slot (8220) in combination with the at least one tensioning slot flange (8150) to extend or to retract the at least one rim securing flange (8100). The extension of the at least one rim securing flange (8100) is limited by the contact of the at least one slot flange top (8155) with the at least one inner periphery detent (9245).

The rim securing flange first end (8110), in a "C" shaped configuration has a rim securing flange first end right end (81 11) having a right end width (8112), a rim securing flange first end middle (8115) having a middle width (8116), a rim securing flange first end left end (8117) having a left end width (8118) and a rim securing flange first end rim mating surface (8119). In the preferred embodiment the middle width (8116) is greater than the right end width (8112) and the left end width (8118) thereby reducing the likelihood that the at least one rim securing flange first end (8110) will be an impediment in the successful rotation of the bead rolling tool (9500) in dismounting or mounting a tire. The rim securing flange first end rim mating surface (81 19), in the preferred embodiment, is convex and has a radius, from the rim securing flange first end right end (8111) to the rim securing flange first end left end (81 17) which is congruent with a radius of the rim (7).

A safety cover (7116), illustrated in Figure 7, is affixed to the receiver and drive assembly (7100). The safety cover (7116), in the preferred embodiment is planar and shaped to cover or enclose, for safety in discouraging access to the rotating assembly, the base plate assembly (8000). In the preferred embodiment the safety cover (7116) is plastic and does not withstand mechanical forces as the device is placed at a wheel for tire mount/dismount operations or during the operation of the apparatus. A safety cover center shaft aperture (7118) is centrally positioned to receive the center shaft (7171).

The receiver (7200), seen at Figures 7 to 9 and 21 to 24 has a receiver top (7205), a receiver first end (7210), a receiver second end (7220) and an upstanding receiver hub (7207) intermediate the receiver first end (7210) and the receiver second end (7220). A receiver center (7228) at the receiver hub (7207) having a receiver center aperture (7230). The receiver (7200) at the receiver center aperture (7230) is rotatably receives the center shaft (7171). An upstanding planar receiver arm (7238) is rigidly affixed by receiver arm (7238) ~g means to the receiver hub (7207) generally by welding, machining or molding. The receiver arm (7238) extends upwardly from the receiver top (7205) and outwardly from the receiver hub (7207) toward the receiver second end (7220) and, in the preferred embodiment to or proximal to the receiver second end (7220). A bead rolling tool receiver (7240), in the preferred embodiment as seen in Figure 21A, is formed by a molding generally from metal and is elongated and planar and is formed and shaped to mate with the receiver arm (7238) with receiver and (7238) mating means. The bead rolling tool receiver (7240) extends outwardly toward the receiver second end (7220) and, in the preferred embodiment the bead rolling tool receiver (7240) extends outwardly from and dista] to the receiver second end (7220). At least one bead rolling tool stop (7245) is formed and extends from proximal the hub outwardly toward, and in the preferred embodiment to, the receiver second end (7220).

The bead rolling tool receiver (7240) and the at least one bead rolling tool stop (7245) are rigidly affixed to the receiver arm (7238) by bead rolling tool receiver affixing means including welding, bolt/nut, screws and other such mechanical means. In the preferred embodiment, at least one bead rolling tool receiver aperture (7239) is formed in each of the receiver arm 17238), the bead rolling tool receiver (7240) wherein the respective at least one bead rolling tool receiver apertures (7239) are aligned and the at least one bead rolling tool receiver apertures (7239) in the bead rolling tool receiver

(7240) are tapped to receive bolt affixing means from the receiver arm (7238). In the preferred embodiment at least four bead rolling tool receiver apertures (7239) are formed in alignment in each of the receiver arm (7238) and the bead rolling tool receiver (7240) and each receives bolt affixing means. In an alternative embodiment, as illustrated in Figure 21, the bead rolling tool receiver (7240) and the bead rolling tool stop (7245) are separate units interconnected by bolt and threaded means via bead rolling tool receiver apertures (7239) receiving bolts. In the preferred embodiment and in the alternative embodiment, seen in Figures 21 and 21 A, the bead rolling tool receiver (7240) has at least two bead rolling tool receiver apertures (7239) with one proximal the receiver second end (7220) and proximal the receiver top (7205), as illustrated in Figures 21 and 2 IA, and one intermediate the receiver hub (7207) and distal from the receiver top (7205) with each of said receiver apertures (7239) receiving bolt and threaded affixing means with the receiver arm (7238) with said affixing providing structural support to restrain the bead rolling tool receiver (7240) from bending most distal from the receiver hub (7207).

The shape of the bead rolling tool receiver (7240) proximal the receiver second end (7220) securely receives the bead tolling tool slot (9550) such that the bead rolling tool (9500) is not rotated as the receiver (7200) is rotated. In the preferred embodiment, the shape of the bead rolling tool receiver (7240) proximal the receiver second end (7220) is rectangular in cross-section to receive the bead rolling tool slot (9550), which is rectangular in the preferred embodiment.

The bead rolling tool stop (7245) and the receiver arm (7238) proximal the receiver second end (7220) slopes downwardly and outwardly toward the receiver second end (7220). The bead rolling tool receiver (7240) distal from the receiver second end (7220) slopes downwardly and outwardly. The slope of the bead rolling tool stop (7245), the receiver arm (7238) and the bead rolling tool receiver (7240) are, in the preferred embodiment, the same and are 45 degrees. The bead rolling tool stop (7245) and the receiver arm (7238) are stops for the bead rolling tool (9500) when received by the bead rolling tool receiver (7240).

The bead rolling tool (9500) is retained in position on the bead rolling tool receiver (7240) and against the receiver arm (7238) and the bead rolling tool stop (7245) by insertion of an elongated pin or bolt, here identified as a receiver retaining pin (7242), which is received at an aperture or other connection means, here identified as receiver retaining pin aperture (7241) at the bead rolling tool receiver (7240) distal the receiver second end (7220).

In the preferred embodiment, the movable rotating drive means (7112) is aligned with movable rotating drive means (7112) affixing means, comprised generally of bolts, screws, welding and other mechanical means, proximal the receiver first end (7210). The slope of the at least one bead rolling tool stop (7245) and the receiver arm (7238), on which the bead rolling tool (9500) rests, may vary in angle to best position and or support the bead rolling tool at a favorable angle relative to the wheel (4).

In the preferred embodiment, the bead rolling tool (9500) will pivot about the receiver retaining pin (7242) as the bead rolling tool (9500) engages the tire bead (g) at the rim (7) and will assume an angle, relative to the bead rolling tool stop (7245) depending on the dimensions of the wheel (4). Application of the bead rolling tool (9500) to a 19.5 inch truck tire will result, in the preferred embodiment, in the bead rolling tool stopping at the bead rolling tool stop (7245) proximal the receiver top (7205) and the receiver second end (7220) forming a bead rolling tool first angle θ (9685) of approximately 20°. Application of the bead rolling tool (9500) to a 24.5 inch truck tire will result, in the preferred embodiment, in the bead rolling tool stopping at the bead rolling tool stop (7245) distal to the receiver top (7205) and the receiver second end (7220) forming a bead rolling tool second angle Δ (9685) of approximately 39°.

It will be appreciated, as shown in Figures 7-9 and 12-13, that the base plate assembly (8000) is a frame or positioning means for securing, relative to the wheel (4), the receiver and drive assembly (7100) such that the receiver and drive assembly (7100) may rotate relative to the wheel (4) permitting the bead breaking means, seen here as a bead rolling tool (9500), to move between a wheel rim (7) and tire bead (8). It will be appreciated that the base plate assembly (8000), functioning as a fixing means for attachment to a wheel (4) at the wheel rim (7) such that the receiver and drive assembly (7100) may rotate relative to the wheel (4).

In the preferred embodiment, a center shaft (7171), seen at Figures 7 and 10-11, is centrally positioned in relation to the concentrically related base plate assembly (8000) and receiver and drive assembly (7100) around which the receiver and drive assembly (7100) revolve. In the preferred embodiment the center shaft (7171) is cylindrical having a center shaft top (7173), center shaft top lock (7174) having a center shaft top lock bearing surface (7175), a center shaft bottom (7176), a center shaft handle shaft (7178) and a center shaft aperture (7179). The center shaft handle shaft (7178) is at the center shaft top (7173) and, in the preferred embodiment is threaded to be received into a female threaded aperture at the center shaft top lock (7174). The center shaft top lock (7174) has a center shaft top lock bearing surface (7175) which bears on the receiver center (7228).

The base plate assembly center aperture (8075) is aligned with the ratchet gear center shaft aperture (8245) and the safety cover center shaft aperture (7118). The center shaft (7171) is received by the aligned base plate assembly center aperture (8075), the ratchet gear center shaft aperture (8245) and the safety cover center shaft aperture (7118). In the preferred embodiment a bolt is received at the center aperture bottom (8077) through the center aperture bottom bolt hole (8079) and is rigidly affixed by bolt means to the center shaft (7171) at the threaded center shaft aperture (7179). It will be seen that the center shaft (7171) depicted in the preferred embodiment is not a limiting structure and that there need be no center shaft (7171) but rather the rotatable interrelationship of the immovable base plate assembly (8000), relative to the wheel (4), or its equivalent and the receiver and drive assembly (7100) or its equivalent, e.g. the relationship between the base plate assembly (8000) and the receiver and drive assembly (7100) may be determined by the interconnection or interrelationship of drive means elements including rotating and stationary elements. Such is seen between moveable rotating drive means (7112) and stationary rotating means (8200).

THE BEAD ROLLING TOOL: Figures 7 to 9 and 25 to 43 illustrate the bead rolling tool (9500). The bead rolling tool (9500), as seen in Figures 25 - 34, has a bead rolling tool longitudinal axis (9520), a bead rolling tool top (9550), a bead rolling tool slot (9560), a bead rolling tool top groove (9560), a bead rolling tool first end (9570), a bead rolling tool second end (9580), a bead rolling tool first top extension (9585), a bead rolling tool second top extension (9590), a bead rolling tool bottom (9600), a bead rolling tool first bottom extension (9620), a bead rolling tool first end slot (9630), a bead rolling tool first end slot bearing (9640), a bead rolling tool second end slot (9650), a bead rolling tool second end slot bearing (9660).

The bead rolling tool (9500) is elongated having a bead rolling tool longitudinal axis (9520) centrally positioned and extending from the bead rolling tool first end (9570) to the bead rolling tool second end (9580). The bead rolling tool slot (9560) is coincident with the bead rolling tool longitudinal axis (9520) extending from the bead rolling tool top (9550) to the bead rolling tool bottom (9600) and intermediate the bead rolling tool first end (9570) and the bead rolling tool second end (9580).

The bead rolling tool slot (9560), seen in Figures 25, 26, 28 and 29, has a bead rolling tool slot first end (9562) and a bead rolling tool slot second end (9565). The bead rolling tool slot first end (9562) is proximal the bead rolling tool first end (9570). The bead rolling tool slot second end (9565) is proximal the bead rolling tool second end (9580). The bead rolling tool slot (9560) is sized to receive the bead rolling tool receiver (7240).

As seen in Figures 25, 26, 27 and 32, the bead rolling tool (9500) is curved toward the bead rolling tool top (9550) from proximal the bead rolling tool first end (9570) to the bead rolling tool first end (9570). The bead rolling tool first top extension (9585) is at or proximal the bead rolling tool first end (9570), is generally orthogonal to the bead rolling tool top (9550) and extends outwardly from the bead rolling tool top (9550). The bead rolling tool second top extension (9590) is at or proximal the bead rolling tool second end (9580), is generally orthogonal to the bead rolling tool top (9550) and extends outwardly from the bead rolling tool top (9550).

Cross-sections from Figure 27 of the bead rolling tool (9500), in the preferred embodiment, are illustrated at Figures 30 through 34 and arc as follows: re: the bead rollng tool (9500) orthogonal the bead rolling tool longitudinal axis (9520) and proximal the bead rolling tool slot (9560) are, in the preferred embodiment, rectangular; re: from proximal the bead rolling tool slot first end (9562) to the bead rolling tool first end (9570) and from proximal the bead rolling tool slot second end (9565) to the bead rolling tool second end (9580) are elliptical. Cross-sections, in the preferred embodiment are elliptical at the bead rolling tool first top extension (9585), the bead rolling tool second top extension (9590) and the bead rolling tool first bottom extension (9620).

The bead rolling tool (9500), in the preferred embodiment, is curved upwardly toward the bead rolling tool top (9550) from proximal the bead rolling tool slot

(9560) to the bead rolling tool first end (9570). It is appreciated that the bead rolling tool

(9500) may be straight from the bead rolling tool first end (9570) to the bead rolling tool second end (9580).

Bearing materials, illustrated at Figures 26, 27, 30-32 and 35-43, are provided at the bead rolling tool bottom (9660) to lessen friction and torque to be experienced by the bead rolling tool (9500). Bearing materials, in the preferred embodiment, include plastics. A bead rolling tool first end slot (9630), proximal and extending to the bead rolling tool first end (9570), is formed at the bead rolling tool bottom (9600) and extending toward and proximal the bead rolling tool top (9550) having a dovetail cut proximal the bead rolling tool top (9550) where the width of the first end slot (9630) proximal the bead rolling tool top (9550) is greater than the width proximal the bead rolling tool bottom (9600). A bead rolling tool first end slot bearing (9640), comprised in the preferred embodiment of a plastic strip shaped to be fixedly received into the bead rolling tool first end slot (9630) by compression and friction. The first end slot bearing (9640) having a cross-section showing a dovetail cross-section. The first end slot bearing (9640) having a slot bearing protrusion (9667), upwardly extending, at the surface of the first end slot bearing (9640) most proximal the bead rolling tool top (9550). A slot bearing removal aperture (9680) is formed proximal the bead rolling tool first end (9570) and proximal the bead rolling tool second end (9580) from the bead rolling tool top (9550) to the bead rolling tool bottom (9600). The first end slot bearing (9640) slot bearing protrusion (9667) is aligned with and detents into the slot bearing removal aperture (9680) proximal the bead rolling tool first end (9570).

A bead rolling tool second end slot (9650), proximal the bead rolling tool first bottom extension (9620), is formed at the bead rolling tool bottom (9600) and extending toward and proximal the bead rolling tool top (9550) having a dovetail cut proximal the bead rolling tool top (9550). A bead rolling tool second end slot bearing (9660), comprised in the preferred embodiment of a plastic strip shaped to be fixedly received into the bead rolling tool second end slot (9650) by compression and friction. The second end slot bearing (9660) having a cross-section showing a dovetail cross- section. The second end slot bearing (9660) having a slot bearing protrusion (9667), upwardly extending, at the surface of the second end slot bearing (9660) most proximal the bead rolling tool top (9550). A slot bearing removal aperture (9680) is formed proximal the bead rolling tool second end (9580) from the bead rolling tool top (9550) to the bead rolling tool bottom (9600). The second end slot bearing (9660) slot bearing protrusion (9667) is aligned with and detents into the slot bearing removal aperture (9680) proximal the bead rolling tool second end (9580).

METHOD OF USE OF THE APPARATUS: It will be understood that the installation of the tire mount/dismount module (60) comprises the following steps:

1. The tire (6) is deflated.

2. The tire bead breaker module (1 10), or other bead breaking means, is employed to break the bead (8) from the rim (7).

3. The tire mount/dismount module (60) is viewed and the at least one rim securing flange (8100) and rim securing flange first end (8110) arc extended or retracted by hand rotation. If the at least one rim securing flange (8100) is short then, with the apparatus on the ground, the receiver is rotated clockwise to extend the at least one rim securing flange (8100) and, if too long retracted by rotation counter clockwise.

4. Then at least one of the at least one rim securing flange (8100) at the rim securing flange first end (8110) is positioned, generally by grasping the drive means (7130) and the bead rolling tool receiver (7240), proximal the wheel front (12) or the wheel rear (14) over the rim (7) at a 12 o'clock position. Then the receiver is rotated to retract the at least one rim securing flange (8100) to engage the rim (7). 5. The at least one rim securing flange first end (81 10) is engaged with the rim

(7). The remaining at least one rim securing flange first ends (81 10) are adjusted by rotation of the ratchet gear ring (8200) and stationary ring gear (9200) thereby extending or retracting the remaining at least one rim securing flange first ends (8110) to be proximal the rim (7).

6. Power is supplied to the drive means (7130) which rotates the drive gear (7112).

7. The drive gear (7112), engaged with the stationary ring gear (9200), rotates the stationary ring gear (9200).

8. The spiral or other radius at least one ratchet gear slot (8220) slidably and bearingly engages the tensioning slot flange bearing (8160) thereby drawing the at least one rim securing flange first end (8110) toward the ratchet gear center (8240) and hence immovably tightening the at least one rim securing flange first end (8110) against the rim (7) and engaging the ratchet pawl (8270) with the ratchet gear teeth (8235).

9. When the at least one rim securing flange first end (8110) is immovably tightened against the at least one rim, the bead rolling tool (9500) is inserted between the bead (8) and the rim (7) and is then levered down and received by the bead rolling tool receiver (7240). 10. Power is applied to rotate the drive gear (7112) which will cause the receiver and drive assembly (7100) to rotate thereby rotating the bead rolling tool (9500) and causing the tire (6) to be dismounted or mounted.

11. The safety cage (9800) is installed. The tire mount/dismount unit (7000) remains in place, relative to the wheel, during inflation of the newly mounted tire. 12. On conclusion of use of the tire mount/dismount unit (7000) the ratchet pawl release handle (8275) is depressed thereby disengaging the ratchet pawl (8270) from the ratchet gear teeth (8235) and allowing rotation to extend the at least one rim securing flange (8100) and removal of the tire mount/dismount unit (7000).

13. Thereafter the tire mount/dismount unit (7000) is removed from the wheel. The safety cage (9800), illustrated at Figures 7 to 9, will afford a degree of containment of the explosive nature of a fire rupture during inflation. The preferred safety cage (9800) embodiment is composed of a center shaft mount (9820) having spokes (9840) from the center shaft mount (9820) to a generally circular mounting handle (9860). The generally circular mounting handle (9860) provides the structure to be impacted upon fire rupture and provides a protective barrier between the operator and the tire. The center shaft mount (9820) is seemly affixed by center shaft mount means to the center shaft center shaft top lock (7174). Center shaft mount means includes threaded aperture at the center shaft mount (9820) receiving the threaded center shaft top (7173), by detent, bolt/nut and other mechanical means commonly recognized by those of ordinary skill in the mechanical arts.

Figures 44-47 show an additional embodiment of the bead rolling tool, specifically for remounting a tire onto a wheel. The additional bead rolling tool, shown generally at 10000, includes a mounting arm assembly 10002, a roller member 10004, a mounting bushing 10006 and a connecting bolt 10008. The mounting arm assembly 10002 includes a first portion 10010 and a second portion 10012 which extends away from the first portion at an angle, approximately 33° in the embodiment shown, but which can vary over a range. The mounting arm assembly 10002 is, in the embodiment shown, approximately 0.5-inch thick and is made from steel or similar material. The first portion 10010 has a curved leading edge 10014 and is approximately 9/16 inches wide. Extending from the curved leading edge is a top edge 10015 which, in the embodiment shown, is approximately 6 inches long and a bottom edge 10017 which is approximately 4.5 inches long. A rear portion 10015A of top edge 10015 is slightly above (approximately 0.25 inch) the remainder of the top edge, to add strength. A first opening 10022 is located approximately 4.5 inches from the far- most point 10021 of leading edge 10014, and a second opening 10024 is positioned 5.25 inches from the far-most point. Openings 10022 and 10024 are positioned such that when the mounting arm assembly is mounted in a tire remounting/dismounting machine, wheels of at least two different sizes can be accommodated. In this particular embodiment, the possible wheel sizes are 22.5 and 24.5 inches. Other size wheels can be accommodated with differently positioned openings.

The second portion 10012 of the mounting arm assembly is approximately two inches side over most of its length, and has a top edge 10024 approximately six inches long and bottom edge 10030 approximately eight inches long. Edge portion 10042 at the distal end of the top edge angles toward the bottom edge at an angle of approximately 55°. At end point 10032 of the second portions an extension piece 10034. In the embodiment shown, the extension piece is approximately four inches wide by 0.3 inches thick and extends beyond the end point 10032 of the second portion by approximately one inch. Alternatively, the extension can extend beyond the edge of the roller member up to 2.5 inches. Further, the extension can angle away from the roller from the edge of the roller or further outboard, as shown in Figure 47, preferably at approximately 30°, but within a range from 0°, as shown in Figure 45, to 40°.

Slightly inboard of end point 10032 is a cylindrical recess portion 10038 which extends between edge 10042 and bottom edge 10030. The cylindrical recess portion 10038 has an outer diameter of approximately 1.25 inches and thereby extends outward from the respective opposing flat surfaces of second portion 10012. Fixedly positioned within cylindrical recess 10038 is a bushing 10004. Bushing 10006 has an interior opening 10050 which is threaded to receive a bolt. The bushing includes an extended cylindrical portion 10052 which fits into the roller member 10004. Roller member 10004 includes a cylindrical section portion 10056. Portion 10056 is in the embodiment shown approximately three inches in diameter and 1.75 inches high and has an opening 10062 therethrough. The roller member 10004 further includes a rounded top portion 10058. Rounded top portion 10058 has a peripheral edge 10060 which mates with the cylindrical section portion 10056 and curves inwardly to a flat top surface 10064.

An alien bolt 10008 (an alien socket in the head) extends through opening 10062 and threads into bushing 10006. Bolt 10008 includes a head portion 10066 which abuts against a corresponding lip (not shown) in the surface that defines opening 10062. Roller member 10004 is secured to mounting arm 10002 by threading bolt 10008 into bushing member 10006.

In operation, when a tire is to be mounted (remounted) onto a wheel, the mounting arm assembly 10002 is positioned into an opening 7246 between bead rolling tool receiver 7240 and bead rolling tool stop 7245 of the tire mountiηg/dismounting machine described above, as shown in Figures 21 and 21 A. The mounting arm assembly 10002 is positioned so that one of the openings 10022 and 10024 comes into registry with opening 7241 in the tool receiver 7240. The opening 10022 or 10024 is selected on the basis of the size wheel being serviced. A retaining bolt or pin, such as a cotter pin, shown at 7242 in Figure 21, is inserted through opening 7241 in tool receiver 7240 and the selected opening in the mounting arm assembly 10002. This arrangement holds the mounting arm assembly securely in place in the machine.

The insertion of the mounting arm assembly 10002 into the machine positions the roller member 10004 such that the axis of the roller member 100004, about which it rotates, is at a right angle (90°) to the tire to be mounted. The roller is positioned a slight distance radially outward from the front edge 10080 of the wheel rim 10081 and the surface of the cylindrical section portion of the roller is positioned a small distance inboard of the front edge 10080 of the wheel rim, i.e. a small distance toward the rear edge 10082 of the wheel rim from the front edge 10080.

A deflated tire 10084 to be mounted is brought adjacent the wheel and a small portion of the outer bead 10086 of the tire is positioned between the front and rear edges of the wheel rim, at the bottom dead-center of the wheel. The mounting arm is then (or has been previously) rotated such that the roller member 10004 is also at approximately the bottom dead-center of the wheel. The roller member thus bears against the inner surface of the outer bead 10086 of the tire, located between the rear and front edges of the wheel rim. The mounting arm is then rotated, with the roller member forcing the outer bead 10086 onto the wheel as it rotates. When the roller member again reaches the bottom dead-center position, the outer bead is completely positioned on the wheel between the front 10080 and rear 10082 edges of the wheel rim.

The inner bead 10088 of the tire 10084 is (hen moved by hand over the roller member 10004 such that a small portion of the inner bead 10088 is positioned between the front and rear rim edges of the wheel. The mounting arm is then again rotated 360°, forcing the inner bead 10088 onto the wheel, between the outer and inner rim edges. At this point, the tire is mounted on the wheel and can be inflated. The mounting tool 10000 is then removed from the machine, by removing the cotter pin 7242 and pulling the mounting tool away, out of the opening 7246 between tool receiver 7240 and tool stop 7245. Accordingly, a tire remounting tool is disclosed which is usable with a tire changing machine for conveniently and quickly mounting tires, including large truck tires, onto wheels.

Although a preferred embodiment of the invention has been disclosed for purposes of illustration, it should be understood that various changes, modifications and substitutions may be incorporated in the embodiment without departing from the spirit of the invention, which is defined by the claims which follow.

What is claimed is:

Claims

1. A tire bead breaking apparatus, comprising: a base assembly adapted to be supported on a stable surface; a bead breaker actuator assembly mounted on the base assembly; a pair of extending arm members, each including a bead contacting element, connected to the actuator assembly and spaced so as to extend, respectively, alongside the opposing sides of a tire when the tire is in an operative position relative to the bead breaker apparatus, wherein in operation of the actuator assembly, at least one arm member moves toward the tire sufficiently that the bead contacting element breaks the tire bead's contact with the wheel rim on which the tire is mounted; and a stabilizer member mounted on each extending arm, the stabilizer member arranged and configured such that the stabilizer member on one extending arm contacts the rim of the wheel on one side thereof when the bead contacting element on the other extending arm comes into contact with and breaks the tire bead from the wheel on the other side of the wheel.

2. The tire bead breaking apparatus of claim 1 , wherein the stabilizer member is moveably mounted on the extending arm and in use extends beyond a distal end of the extending arm member to contact the rim of the wheel.

3. The tire bead breaking apparatus of claim 2, wherein the bead contacting element is located in the vicinity of the distal end of the extending arm member, extending laterally across the extending arm member.

4. The tire bead breaking apparatus of claim 3, wherein the bead contacting element has a convex cross-sectional surface for contact with the tire bead.

5. The tire bead breaking apparatus of claim 1 , wherein the actuator assembly is a screw assembly, wherein when a threaded screw portion of the screw assembly is rotated in one direction, the extending arm members move toward each other in the direction of the tire, and when rotated in the other direction the extending arm members move away from each other and from the tire.

6. The tire bead breaking apparatus of claim 1 , wherein the base assembly includes a U-shaped mounting member to which the actuator assembly is connected and a mounting bar support element connected to the U-shaped mounting member so that the U- shaped mounting member is positioned at an acute angle relative to the mounting bar support element, the mounting bar support element adapted to be positioned on the ground or other stable surface.

7. A tire mount/dismount apparatus, comprising: a base assembly connectable to the wheel by three substantially equidistant flange members which are each moveable radially in respective flange slots in the base assembly, each flange member having a portion in the vicinity of the distal end thereof for gripping a rim of the wheel; a mounting assembly associated with and rotatable relative to the base assembly for receiving a tire bead engaging and/or disengaging tool; a driving assembly for drawing the flange member radially inwardly to grip the wheel rim so that the base assembly is fixed to the wheel, and for rotating the mounting assembly to mount and/or dismount the tire from the wheel by operation of the tire bead engaging and/or disengaging tool.

8. The tire mount/dismount apparatus of claim 7, including a spindle member extending from the center of the base member and a ratchet gear with three partially spiraled slots therein, mounted for rotation on the spindle means, and further including connecting elements extending from each of the flange members, respectively, to engage a corresponding spiraled slot in the ratchet gear, wherein rotation of the ratchet gear by the driving assembly, following initial positioning of the tire mount/dismount apparatus on the wheel, draws the flange members radially inwardly, tightening the base assembly to the wheel.

9. The tire mount/dismount apparatus of claim 8, including a ratchet pawl for engaging successive ratchet gear teeth as the ratchet gear is rotated, holding the position of the ratchet gear and preventing counter-rotation of the ratchet gear as the flange members are tightened against the wheel, the pawl including a release handle by which the holding action of the pawl is released, allowing the flange members to be moved radially outward, releasing the base assembly from the wheel.

10. The tire mount/dismount apparatus of claim 8, including a ring gear fixedly connected to the ratchet gear, the driving assembly including a drive gear which engages the ring gear and a drive motor, the drive motor in operation driving the drive gear to first rotate the ring gear and the ratchet gear to tighten the base assembly on the wheel and thereafter to rotate around the periphery of the ring gear, rotating the mounting assembly and the tire bead engaging and/or disengaging tool therewith.

11. The tire mount/dismount apparatus of claim 10, wherein an inner periphery of the ring gear includes three spaced detents, into which an edge of each flange member, respectively, is received.

12. The tire mount/dismount apparatus of claim 10, wherein the drive motor is mounted on the mounting assembly in the vicinity of one end thereof, such that when the drive motor rotates the drive gear about the ring gear, the mounting assembly rotates therewith, the mounting assembly including a central opening through which a center spindle from the base member extends and about which the mounting assembly rotates, the mounting assembly further including a tool receiver assembly for removably receiving the tire bead engaging and/or disengaging tool.

13. A tire bead rolling tool, comprising: an elongated bead rolling tool body having first and second opposing ends, wherein the tool has a cross-section which is approximately elliptical in the vicinity of both the first and second ends; a first projection extending outwardly from a top surface of the tool, in the vicinity of the first end; a second projection, also extending outwardly from the top surface of the tool, in the vicinity of the second end of the tool; a third projection extending outwardly from a bottom surface of the tool, at the second end of the tool, and bearing members in the vicinity of the first and second ends on the bottom surface of the tool for contact with a rim of a wheel on which the tool is used.

14. The tire bead rolling tool of claim 13, wherein the third projection is shorter than the second projection and is slightly outboard of the second projection.

15. The bead rolling tool of claim 13, including a slot extending through the body of the tool approximately intermediate of the first and second ends thereof for mounting of the tool on a tire mount/dismount apparatus.

16. The bead rolling tool of claim 13, wherein the bearing members are plastic and are mounted so as to be replaceable.

17. The bead tolling tool of claim 16, wherein the bearing members each engage an associated bearing slot in the tool body, the bearing slots having a dovetail configuration in cross-section, and wherein the bearing members have a mating dovetail configuration, tending to prevent each bearing member from coming out of its associated bearing slot in use.

18. The bead rolling tool of claim 13, wherein the body of the tool is curved in the vicinity of the first end thereof, wherein the second and third projections are approximately orthogonal to the longitudinal axis of the tool, and wherein the first, second and third projections are approximately parallel relative to the tool body.

19. The bead rolling tool of claim 13, wherein the tool is narrower at the first and second ends than at an intermediate portion thereof.

20. The bead rolling tool of claim 13, including apertures which extend from a top surface of the tool body to the bearing slots, allowing for removal of the bearing members from their slots.

21. A tire mounting tool for use with a tire mounting/dismounting machine, comprising: a mounting arm assembly configured at one end to be received into a tool receiving portion of the machine; and a roller member mounted for rotation in the vicinity of the other end of the mounting arm assembly, wherein the mounting arm assembly is configured such that the roller member rotates about an axis which is approximately at right angles to the axis of the wheel on which the tire is to be mounted when the machine is operatively positioned adjacent the wheel, and further such that a portion of the peripheral surface of the roller member is slightly inboard between the inner and outer rim edges of the wheel, such that as the mounting arm is rotated by the machine, the roller member forces a tire bead onto the wheel when a portion of the bead has been previously positioned between the inner and outer rim edges.

22. The tire mounting tool of claim 21, wherein the mounting arm includes first and second portions and wherein the second portion, located distally from the one end of the mounting arm, is at an angle relative to the first portion, the tire mounting tool further including a mounting assembly for rotatably mounting the roller member to the mounting arm.

23. The tire mounting tool of claim 22, wherein the angle is approximately 33°.

24. The tire mounting tool of claim 21, including two openings in the mounting arm which permit the mounting arm to be positioned relative to the machine in two positions, so as to mount tires on wheels of two different sizes.

25. The tire mounting tool of claim 21, including a tab member at the other end of the mounting arm, extending beyond a peripheral surface of the roller member.

26. The tire mounting tool of claim 21, wherein the roller member includes a cylindrical surface section having at its distal edge an end portion which curves inwardly to a flat distal surface of the roller member.

27. The tire mounting tool of claim 26, wherein the cylindrical surface section has a diameter of approximately three inches.

28. A tire bead breaking apparatus, comprising; a base assembly adapted to be supported on a stable surface; a bead breaker actuator assembly mounted on the base assembly; and a pair of extending arm members, each including a bead contacting element near the distal ends thereof, connected to the actuator assembly and spaced so as to extend, respectively, along the opposing sides of a tire when the tire is in an operative position relative to the bead breaker apparatus, wherein in operation of the actuator assembly, at least one arm member moves toward the tire sufficiently at one side of the tire that the bead contacting element on the one arm breaks the tire bead's contact with the wheel rim on which the tire is mounted at said one side, while the other arm is in contact with the rim of the wheel on the other side of the tire.

29. The tire bead breaking apparatus of claim 28, wherein the base assembly includes a flat support bar which contacts the surface along the length thereof and a U-shaped mounting member, wherein one end of the U-shaped mounting member is rotatably connected to the support bar and the other end thereof is in contact with the stable surface, and wherein the base assembly further includes a removable connecting member which connects the support bar and the mounting bar in a selected angular relationship.

30. The tire bead breaking apparatus of claim 29, wherein the U-shaped mounting member is at an angle within the range of 35°-55° when it is operatively positioned relative to the support bar.

31. The tire bead breaking apparatus of claim 29, wherein the extending arm members are pivotally connected at pivot points to the mounting means, and wherein the actuator assembly includes a hydraulic cylinder connected between proximal ends of the two arm members, wherein in operation of the hydraulic cylinder, the distal ends of the arms move toward and away from each other about the pivot points.

32. The tire bead breaking bead breaking apparatus of claim 28, wherein the bead contacting elements at the distal ends of each arm extend across the arms.

33. The tire bead breaking apparatus of claim 28, wherein each arm includes a straight portion and an inwardly angled portion arranged such that the distance between the free ends of the angled portions is smaller than the distance between the free ends of the straight portions.