Abstract: A tire changer machine, and method of operation, configured with a tire-engaging wheel clamp assembly to secure a wheel assembly consisting of a wheel rim and tire mounted thereon to a drive assembly, and for demounting of the tire from the wheel rim. Upon dismounting of the tire from the wheel rim, a recessed surface and annular flange of the tire-engaging wheel clamp assembly is configured to catch and retain a rim or bead of the demounted tire, restricting movement of the tire upon dismounting from the wheel rim, until retrieved by an operator.

Abstract: A tire assembling device includes a main body, a holding portion, an abutting surface, a guiding portion, a pressing portion and a protrusion. The main body has a top surface. The holding portion is connected to one side of the main body. The abutting surface connected to another side of the main body is for abutting against a rim surface of the rim. The guiding portion located between the abutting surface and the top surface is extended inclinedly corresponding to a radial direction of the rim. The pressing portion extended from the guiding portion toward a reference direction is protruded from the abutting surface and connected to the top surface. The protrusion protruded from the pressing portion forms a hook portion with an upper edge of the pressing portion and the abutting surface. The hook portion is for hooking a first edge of the rim.

Abstract: A motorcycle tire for running on rough terrain, the tire includes a tread portion including a central region, a pair of shoulder regions and a middle region. The tread portion is provided with at least one central block with a ground contact face whose centroid is located within the central region, at least one shoulder block with a ground contact face whose centroid is located within the shoulder region on each side of a tire equator, and at least one middle block with a ground contact face whose centroid is located within the middle region on each side of the tire equator. When the respective blocks are projected onto a tire meridian cross section along a circumferential direction of the tire, every pair of axially adjacent two blocks are arranged so as to overlap one another at least partially on the tire meridian cross section.

Abstract: A bead breaker tool includes an upper member and a lower member, where the upper member and the lower member are interleaved together to make a lever assembly. The upper member and lower member are detachable from each other, and the upper and lower members are configured as tire irons. Also, the handles of the tire irons may include crossguards.

Abstract: A wheel balancing machine having a tire removing device includes a rotation shaft upon which a wheel is mounted and elements for fixing the wheel to the rotation shaft. The device further includes a plate fixed rigidly to the tire removing device, and a tubular element connected to the plate which rotatably accommodates the rotation shaft. The wheel balancing device further includes a plurality of sensors fixed to the plate. The sensors are connected to the tubular element and adapted to measure the forces that constrain the tubular element when the rotation shaft and the wheel are turning and provide a measurement of the forces generated by the dynamic imbalance of the wheel. The plate includes a plurality of slots. The tire removing device includes arms with ends that engage in the plurality of slots to rigidly fix the wheel balancing device to the tire removing device.

Abstract: Free piston engines having a free piston having a first piston diameter in a cylinder with a combustion chamber on a first side of the first piston and a piston rod having a second diameter fastened to a second side of the first piston and extending to a single second piston having a third diameter smaller than the first diameter, but larger that the second diameter, the single second piston extending into a hydraulic cylinder, the second piston having a first hydraulic area defined by the third diameter in a first hydraulic chamber, and a second hydraulic area defined by the area between the third diameter and the second diameter in a second hydraulic chamber, and valving to control the coupling of a high pressure, a low pressure and a reservoir to the first and second hydraulic chambers to control the free piston.

Abstract: An apparatus for processing a tire and a wheel for forming a tire wheel assembly is disclosed. The apparatus includes a tire support member including a first tire support member, a second tire support member and a third tire support member. Each of the first, second and third tire support members include an upper surface and a lower surface. The apparatus includes a plurality of tire engaging devices including a first tire tread engaging post and a second tire tread engaging post. A method for processing a tire and a wheel for forming a tire wheel assembly is also disclosed.

Abstract: A tire changer machine and tire demounting methodology includes a demount tool assembly having a demount tool selectively positionable relative to a support and configured to extract a bead of the tire from the wheel rim. A guide element is mounted to the support, and the guide element is operable to provide a limited degree of freedom of the distal end from a predetermined path of motion in a tire demount procedure, thereby allowing the distal end to reliably grip the tire bead while the support arm is maintained in a stationary position relative to the wheel rim.

Abstract: A mobile bead breaking device (for separating a tire bead from a rim) comprises a cylindrical body, a bead seat engaging base lock with a plurality of bead seat engaging surfaces, stepped at each surface for full paired connection with an abutting face of the bead seat band; a rim flange engaging foot, a base lock tightener and a power transmission source within the body to i) vertically slide the base lock into removable connection with the plurality of bead seat engaging surfaces and to slide the foot into engagement with the rim; ii) horizontally slide the foot to disengage the rim from the tire bead.

Abstract: The present invention relates to a device for demounting a tire (T) from a rim (W) including at least one support element; an articulation pin element borne by the at least one support element; a spring shackle element having a first end and a second end articulated on the articulation pin; a demounting lever; an actuator borne by the at least one support element and set to act on the demounting lever in order to make the demounting lever angularly move during use; and friction or elastic loading means designed to slow the angular movement of the spring shackle element around the articulation pin with respect to its angular movement around the first axis (x-x).

Abstract: A tire-changing machine comprising support means (4) for a wheel, a tool-bearing arm (50) at an end of which a bead-breaking tool (6) is hinged according to a hinge axis (E) which is perpendicular to an axis (A) of the wheel, and first motorised means (32, 33) for causing a relative movement, in a parallel direction to the axis (A) of the wheel, between the support means (4) and the tool-bearing arm (50), such as to press the bead-breaking tool (6) against a flank of a tire on the wheel, characterized in that it comprises second motorised means (64), activatable independently from the first motorised means (32, 33), which second motorised means (64) are destined to rotate the bead-breaking tool (6) about the hinge axis (E) with the tool-bearing arm (50), in order to vary an inclination of the bead-breaking tool (6) with respect to the axis (A) of the wheel which is mounted on the support means (4).

Abstract: Machine for fitting and removing a tire (1) from a rim (2) of a wheel (3). The machine comprises a frame (10), a rotating table (11) in order to attach the wheel thereto by its rim and to rotate the rim about its axis (Y), and a tool (12) for fitting and/or removing the tire from the rim. The tool (12) is connected to the frame (10) by means of a movable structure (20) capable of moving the tool (12) horizontally and vertically to its working position situated close to the proximal edge (4) of the rim (2) when the wheel (3) is mounted on the rotating table (11). The movable structure (20) comprises four arms (A, B, C, D) connected together in twos by means of four pivots (p, q, r, s) the axes (X1, X2, X3, X4) of which are parallel with one another. One of the arms (A) is secured to the frame (10) and the tool (12) is connected to one of the other arms (B, C, D).

Abstract: The present invention is related to a method and an apparatus for assembling a tire (1) onto the rim (2) of a vehicle wheel or for disassembling a tire (1) from the rim (2) of a vehicle wheel. There is provided an electric motor (3) for rotationally driving the rim (2) and the tire (1) during the assembling or disassembling operation, tools (4, 5) for assembling or disassembling the tire (1) onto the rim (2) or from the rim (2), measuring means (6, 15, 16, 18) for measuring the tire temperature and/or forces acting on the tire during the assembling or disassembling operation, and recording means (7) for recording on at least one data carrier the measured values of the tire temperature and/or of the forces acting on the tire during the assembling or disassembling operation.

Abstract: A tire changer is provided for mounting/dismounting a tire to/from a wheel rim. The tire changer includes a tire fixing device mounted to a support arm and including a transmission cylinder that is rotatably mounted to the support arm and driven by a power device, a first retention member, a second retention member, and a fastening member. The transmission cylinder receives therein a transmission shaft having an end projecting outside the cylinder and forming a fastening section. The first and second retention members are mounted to the transmission shaft and both form a slope that is set in abutting engagement with an inside surface of a fixing bore formed in the rim. The fastening member is coupled to the fastening section to be positioned against the second retention member to thereby secure the rim between the first and second retention members.

Abstract: An apparatus for seating a bead of the a adjacent a bead seat of a wheel is disclosed. The apparatus is disposable adjacent one or more of a tread surface and an outer sidewall surface of the tire.

Abstract: A tool for tire uninstalling and installing machines includes an element for connection to a movable bearing member of the tire uninstalling and installing machine, which has a longitudinal axis, and a round contact element which is freely and rotatably supported by said connection member about a rotation axis and which has an external outline in contact with a contact portion of a side of a tire installed to a rim, the round element having a flared contacting and lifting surface suitable to contact and lift the tire from the rim, which has a base facing toward the rim and defining a first opposed vertex, touching means extending from the base toward the rim for touching a portion of the rim.

Abstract: The present invention relates to a bead breaker group for bead breaking a tire of a tired wheel equipped with rim with bead-engagement flanges, the bead breaker group comprising a support (2, 5) and at least one bead breaker tool (3) mounted for rotation around a pin (4) borne by the support (2, 5), the bead breaker tool being substantially flat and comprising: at least one portion configured as an abutment front (3b, 3d, 3f) against a flange of a rim of a tired wheel to be bead broken; and at least one portion having curved peripheral edge substantially coaxial with the pin (4) and intended to act as an engagement-penetration zone (3a, 3c, 3e) between the flange of a rim and the bead of a tire to be bead broken, the distance between the abutment front (3b, 3d, 3f) and the pin (4) being less than the distance between the pin (4) and the at least one engagement-penetration zone (3a, 3c, 3e).

Abstract: The blocking device of a wheel rim on a tire-mounting machine is provided with a rotating support plate having a central hole, and includes a stem for engaging with the rotating support plate, and a cursor which is slidable on the stem and which includes a conical centring body and a device for activating for moving the cursor along the stem. The device for activating includes a mechanical transmission between a collar and a motor and the coupling between the cursor and the stem is such as to prevent rotation of the cursor about the stem.

Abstract: A system for mounting a tire and a wheel is disclosed. The system includes a robotic arm pivotably-connected to an end effector. The system also includes a tire-supporting portion including a support surface and a pair of wheel-engaging and tire-manipulating portions disposed upon the support surface. The pair of wheel-engaging and tire-manipulating portions includes a first wheel-engaging and tire-manipulating portion fixedly-disposed relative the support surface and a second wheel-engaging and tire-manipulating portion movably-disposed relative the support surface.

Abstract: The present invention is related to a method and an apparatus for assembling a tyre (1) onto the rim (2) of a vehicle wheel or for disassembling a tyre (1) from the rim (2) of a vehicle wheel. There is provided an electric motor (3) for rotationally driving the rim (2) and the tyre (1) during the assembling or disassembling operation, tools (4, 5) for assembling or disassembling the tyre (1) onto the rim (2) or from the rim (2), measuring means (6, 15, 16, 18) for measuring the tyre temperature and/or forces acting on the tyre during the assembling or disassembling operation, and recording means (7) for recording on at least one data carrier the measured values of the tyre temperature and/or of the forces acting on the tyre during the assembling or disassembling operation.

Abstract: The present invention relates to a device for demounting a tire (T) from a rim (W), comprising: at least one support element (3, 5); an articulation pin element (9; 29) borne by the at least one support element (5); a spring shackle element (7; 70) having a first end (7a) and a second end (7b) articulated on the articulation pin (9; 29); a demounting lever (2); an actuator (4) borne by the at least one support element (3) and set to act on the demounting lever (2) in order to make the demounting lever (2) angularly move during use; and friction or elastic loading means designed to slow the angular movement of the spring shackle element (7, 70) around the articulation pin (9, 29) with respect to its angular movement around the first axis (x-x).

Abstract: A wheel servicing machine provides a rotatable shaft having a retractable rod slidably disposed in a center bore of the rotatable shaft, wherein the retractable rod is longitudinally moveable relative to the shaft. A rotatable locking member is disposed on the distal end of the retractable rod. The locking member includes one or more mounting studs protruding radially therefrom for engaging a centering cone or a wheel clamp. A tool support arm including a stage protrudes from the base. A tool adapted for engaging a sidewall of a tire is attached to support arm. A second stage including a second tool configured for engaging the opposite sidewall of the tire may also extend from the base. A platform assembly having one or more spring-loaded rollers is attached to the base in some embodiments. A longitudinally moveable travel arm includes a jointed auxiliary arm. The auxiliary arm in some embodiments includes a wheel support extending from one of the auxiliary arm members.

Abstract: A system for mounting a tire and a wheel is disclosed. The system includes a robotic arm pivotably-connected to an end effector. The system also includes a tire-supporting portion including a support surface and a pair of wheel-engaging and tire-manipulating portions disposed upon the support surface. The pair of wheel-engaging and tire-manipulating portions includes a first wheel-engaging and tire-manipulating portion fixedly-disposed relative the support surface and a second wheel-engaging and tire-manipulating portion movably-disposed relative the support surface.

Abstract: A tire changing apparatus to remove a tire from a wheel may include a substantially vertical stand for supporting a wheel balancing assembly and the vertical stand supporting a rim locker assembly which is operated by a arm. The rim locker assembly may include an adjustable arm extending device to adjust to different size rims, and the arm extending device may include a base member. The base member may include a spiral slot, and the base member may be driven by a drive gear. The drive gear may be driven by a opposing drive gear, and the opposing drive gear may be connected to a rotating arm.

Abstract: A tyre-changing machine comprising support means (4) for a wheel, a tool- bearing arm (50) at an end of which a bead-breaking tool (6) is hinged according to a hinge axis (E) which is perpendicular to an axis (A) of the wheel, and first motohsed means (32, 33) for causing a relative movement, in a parallel direction to the axis (A) of the wheel, between the support means (4) and the tool-bearing arm (50), such as to press the bead-breaking tool (6) against a flank of a tyre on the wheel, characterised in that it comprises second motorised means (64), activatable independently from the first motorised means (32, 33), which second motorised means (64) are destined to rotate the bead-breaking tool (6) about the hinge axis (E) with the too- bearing arm (50), in order to vary an inclination of the bead-breaking tool (6) with respect to the axis (A) of the wheel which is mounted on the support means (4).

Abstract: A tire changing machine for changing difficult to mount tires is provided. The machine utilizes various implements configured about the machine's chassis in such a way that they do not interfere with each other's operation. In this way, the machine enables an operator to effectively change various tires.

Abstract: A tire mounting-demounting machine having a bead breaking arm with a work head having a head-holder support (10), bracket member (6) pivoted at one end thereof to the head-holder support (10), a bead breaker tool (2) supported at the other end of the at least one bracket member (6) and configured to engage a bead of a tire (P), a lever element (7) pivoted to the head-holder support (10) and bearing a feeler pin arm portion (9) configured to control the lever element (7) and a biasing member configured to yieldably keep the lever element (7) in the work position.

Abstract: A system for mounting a tire and a wheel is disclosed. The system includes a robotic arm pivotably-connected to an end effector. The system also includes a tire-supporting portion including a support surface and a pair of wheel-engaging and tire-manipulating portions disposed upon the support surface. The pair of wheel-engaging and tire-manipulating portions includes a first wheel-engaging and tire-manipulating portion fixedly-disposed relative the support surface and a second wheel-engaging and tire-manipulating portion movably-disposed relative the support surface.

Abstract: An operating head for removing and fitting wheel tires for vehicles includes a support arrangement associable with an arm of a tire-changing machine, a removal tool having a substantially hook-shaped free extremity, associated with the support arrangement and moving between a fastening-on position of a section of the bead of a tire of a wheel fixed on the tire-changing machine and a position of extraction of the bead section from the rim of the wheel, and at least an actuator device supported by the support arrangement and associated with the tool, in which the actuator device is suitable for moving the tool between the fastening-on position and the extraction position.

Abstract: A tire mounting apparatus includes a mounting head that is rotated by a drive shaft and slidably carries two adjusting plates. A push rod extends coaxially through the drive shaft, and a deflecting rod slopes laterally from the push rod through openings in the plates. The deflecting rod has two sloping actuating surfaces with different slope angles that engage in the openings of the plates to cause different sliding displacement of each plate by an axial actuation of the push rod. A bead deflector and a pressing roller are respectively mounted on the plates so they can be adjusted to different wheel rim diameters. A toggle lever and/or a pivot joint adjust a pivot angle of at least one of the tire mounting tools to remain tangential to the wheel rim circumference while it is slidingly adjusted to a different wheel diameter.

Abstract: The invention provides a tire mounter capable of preventing a tire from being damaged by minimizing a contact of a bead part of the tire relative to a wheel. The tire mounter, for receiving the wheel on which the tire is temporarily fixed aslant and mounting the tire on the wheel from a temporarily fixed state when mounting the tire, comprises a bead guide plate having an arc-shaped plate piece, the arc-shaped plate piece having a bottom surface side positioned on an upper surface side of the wheel, and an outer peripheral arc-shaped part positioned on an outer peripheral surface of the wheel. The bead guide plate is turned toward a bead part of the tire at a non-mounting side of the tire while being interlocked with a turning of a tire bead press roller, and thereby the bead guide plate turns ahead of the tire bead press roller so that the bead part of the tire at the non-mounting side of the tire slides on a surface side of the bead guide plate to be mounted on the wheel.

Abstract: The invention relates to a mounting device for mounting or demounting a tyre of a vehicle onto or from a rim, with at least a rotating body which rotates about an axis.

Abstract: A tool for completing the mounting of a bicycle tire onto its rim that is superior to those provided by the tools of the prior tire irons. The use of a tool is usually required to complete the job of mounting a bicycle tire to its rim due to the high tension developed in the bead of the tire at that stage. The present invention does not rely on a levering arrangement at all, but instead employs a traveling inclined plane to progressively lift the tire bead to a height above the rim's edge, and a downwardly sloped incline to allow the so lifted bead to then slide down into the rim's interior. The invention utilizes the flange, or rim sidewall, of the wheel rim for both support and guidance as it is impelled forward on the rim by impacts on its trailing surface from an object suitable for the function, such as a hammer. A slot is incorporated into the invention to receive the wheel's flange.

Abstract: The present invention relates to an improved device for tire disassembling machines in general, designed to simplify tire assembling on rim without excessive stretching.

Abstract: A machine for fitting and removing vehicle wheels includes a base frame, a clamping and rotating device for clamping and rotating the rim of a vehicle wheel around a horizontal rotation axis, which are fitted on the base frame by interposing straight first guide means along a vertical sliding direction and at least one operating arm which is associated with the base frame along an oblique direction with respect to the position plane of the rotation axis and of the sliding direction and which has a work tool for fitting and removing a tire onto and from the rim. The operating arm is positionable in an operating position in which it is arranged at right angles and incidental to the rotation axis and the work tool is positioned near the circumferential edge of the rim.

Abstract: A tire and a core body with rubber legs are properly mounted to a rim with no plastic deformation of the core body. After the bottom side of a pneumatic tire 14 in which a support body 16 is arranged in the interior is mounted to a rim wheel 11, a portion of the upper side bead 18 in the circumferential direction is pressed downwards with a bead presser 192 of an immobilizing part 180 in order to drop in the bead 18 of the upper side. Since a portion of the outer surface of the bead in the circumferential direction is pressed such that the bead presser 192 exerts force on only the rubber legs 28 of the support body 16 via the bead 18, great stress is not made to act upon the support body 16 and plastic deformation can be prevented. After that, the portion of the upper side bead 18 dropped in is designated as the starting point and pressing rollers are made to rotate around the rotational axis, whereby the entire upper side bead can be dropped in.

Abstract: Tyre changer apparatus having a horizontally extended frame (13); a wheel holder device (1) provided on said frame (13) and designed to support a tyred wheel (14) with horizontally positioned wheel axis (15); a carriage (5) supported movably along the frame (13); a tool holder (4) provided on the carriage (5); at least one tyre changing tool (2) for mounting the tyre onto the wheel and/or for demounting the tyre from the wheel; and actuator means to move the tool holder (4) on the carriage (5) to operating positions in which the tyre changing tool (2) is able to act on the tyre for mounting or demounting on both sides of the tyre, wherein during the mounting operation or demounting operation the carriage (5) is driven by an actuator device along the frame (13); the tool holder (4) is movably supported on a tool holder carriage (3) which is movably supported on said carriage (5) and driven by an additional actuator device (16) provided on said carriage (5), and said actuator device (16) is in drive connection

Abstract: An adjustable tire mounting apparatus can be universally used to assemble various types of wheels and tires to each other. The apparatus includes a cone restricting movement of a wheel, a housing rotatable about the cone, a horizontal distance adjusting unit that adjusts a position of a horizontal movable body with respect to the housing in the radial direction, a vertical distance adjusting unit that adjusts a position of a vertical movable body with respect to the horizontal movable body in the vertical direction, a pressure roller disposed on the vertical movable body that presses a sidewall of a tire, expansion rollers that are disposed on the horizontal movable body and guide the bead of the tire to enter a rim of the wheel, and a control unit that controls operation of the horizontal and vertical distance adjusting units, depending on the types of the tire and wheel.

Abstract: A tire mounting tool, used with a tire mounting/dismounting machine, includes a mounting arm configured at one end to be firmly received into a tool receiving portion of the machine. A roller member is mounted for rotation in the vicinity of the other end of the mounting arm, wherein the mounting arm is configured such that the roller member rotates in operation about an axis which is at right angles to the axis of the wheel on which the tire is to be mounted by the machine. The mounting arm is further configured and arranged such that when received into the machine, the roller member extends slightly between the rim edges of the wheel and slightly outboard radially of the cuter, i.e. proximal, rim edge.

Abstract: An apparatus for mounting a tire on a wheel rim includes a mounting head that is rotated by a drive shaft and slidably carries two adjusting plates. A push rod extends coaxially through the drive shaft, and a deflecting rod slopes laterally from the push rod through respective openings in the plates. The deflecting rod has two sloping actuating surfaces with different slope angles that respectively engage in the openings of the plates to cause different sliding displacement of each plate by an axial actuation of the push rod. A bead deflector and a pressing roller are respectively mounted on the plates so they can be adjusted to different wheel rim diameters. A toggle lever and/or a pivot joint adjust a pivot angle of at least one of the tire mounting tools to remain tangential to the wheel rim circumference while it is slidingly adjusted to a different wheel diameter.

Abstract: A tire changing machine for changing difficult to mount tires is provided. The machine utilizes various implements configured about the machine's chassis in such a way that they do not interfere with each other's operation. In this way, the machine enables an operator to effectively change various tires.

Abstract: An apparatus for mounting a tire on a wheel rim includes a mounting head with a tire bead deflector and a tire press-in roller, and a drive that moves the mounting head toward, and rotates the bead deflector and the press-in roller around, the wheel rim. To avoid a damage-causing contact between the bead deflector and the wheel rim, an arrangement for monitoring a minimum spacing distance between the wheel rim and the mounting head is arranged preferably on the bead deflector. If an improper working position closer than the minimum spacing distance is detected, the arrangement produces a signal that influences, e.g. stops, the motion of the mounting head. The arrangement preferably includes a contact member of a comparatively soft low-friction material at a working end of the bead deflector. If the contact member contacts the wheel rim, this actuates a piezoelectric element to generate the required electrical signal.

Abstract: An automatic device (1) for mounting and dismounting a tire (100) onto/from the rim (201) of a wheel (120) associated with a tire-dismounting machine (100) comprising a lower base (101) on which are associated rotating support and locking means (102) of the rim (201) of a wheel, a pole (103) extending vertically associated with said base (101), a horizontal support arm (104) associated with said pole (103), said device comprising a mobile shaft (2b) that can slide vertically inside a pipe (2) supported so that it can slide horizontally on said arm (104), an articulated quadrilateral made up of a tire-dismounting tool (4), a pair of opposite connecting rods (13, 14) and a body (6) fixed to the lower end of the mobile shaft (2b), and a manoeuvring lever (7) articulated with said quadrilateral and suitable for deforming it to transmit the roto-translating motion to the tool (4) that goes from a seeking configuration to an extraction configuration of the bead (202?) from the rim (201).

Abstract: A tool for mounting and removing tires onto and from respective wheel rims comprises a profiled body mounted on a cylindrical shank provided at the end of a tool holder bar associated with a tire removal machine. The body has two active portions: the blade and the head. The blade and the head extend from two parts comprising coaxial hubs, both of which are mounted on the cylindrical shank of the tool holder bar and removably coupled together such that their mutual orientations can be adjusted. At least one of the hubs is provided with means for torsionally locking the hub to the shank.

Abstract: Tool for mounting and removing tires onto and from respective wheel rims comprises a profiled body to be mounted on a cylindrical shank (2) provided at the end of a tool holder bar (1) associated with a tire removal machine, the body having two active portions, known as the blade (5) and head (6) respectively, extending from two parts (20, 22) comprising coaxial hubs (200, 220) both mounted on said cylindrical shank (2) of said tool holder bar and removably coupled together such that their mutual orientation can be adjusted, at least one of said hubs (200, 220) being provided with means for torsionally locking it to said shank.

Abstract: A bead breaking device (10) to break a bead (71) from a rim (81) of a wheel (80), comprising an assembly (20, 90) for mounting the device upon a wheel; a first arm (40) pivotally connected to the assembly; means for rotating (50) the first arm; and a breaking tool (60), carried at one end of the first arm and rotatable therewith relative to the assembly. A method for breaking a tire bead from a rim of a wheel, comprises the steps of mounting a wheel and a tire on a bead breaking machine; locating a bead breaking device on the machine, the device providing a bead breaking tool and at least a first arm carrying the tool at one end; forcing the bead breaking tool between the bead of the tire and the rim at one point on the circumference of the rim; and rotating the first arm and bead breaking tool sufficiently to cause the tool to separate the seal between the bead and the rim.

Abstract: An apparatus for mounting tires on a wheel rim and removing tires from a wheel rim which comprises a shaft member mounted for rotation on a base member, a hub member operatively associated with said shaft member for rotation therewith, said hub member containing a cavity therein, means for rigidly securing the wheel rim to a centrally disposed rod, said rod extending as free ends from opposite sides of said wheel rim for selectively mounting the wheel rim within the hub cavity from either of said opposite sides thereof, engaging means mounted for substantially vertical and horizontal movement relative to said shaft members for bringing said engaging means into contact with a tire to be mounted on the wheel rim, and actuator means for moving said engaging means in said substantially vertical and horizontal direction to achieve said contact with said tire.

Abstract: A tire removal machine comprising a rotary platform for supporting the wheel, means for acting on the tire bead and platform operating means, wherein the operating means are a single-phase electric motor with series excitation, connected to a single-phase feed line at 110V a.c. via a voltage rectifier, means being provided for limiting current absorption to a predetermined value.