Abstract: Machine for unseating a tire bead from a wheel, comprising a stand designed to rest on the ground, a bearing plate for the wheel, and a bead unseating tool which is connected to a tool bearing structure mobilely mounted to the stand. The machine comprises a pneumatic actuator for setting the tool bearing structure in motion in order to operate the tool, and a shock absorber connecting the tool bearing structure to the stand in order to damp the movement of the tool bearing structure, particularly at the moment at which the tire bead unseats from the rim of the wheel.

Abstract: Machine for unseating a tire bead from a wheel, comprising a stand designed to rest on the ground, a bearing plate for the wheel, and a bead unseating tool which is connected to a tool bearing structure mobilely mounted to the stand. The machine comprises a pneumatic actuator for setting the tool bearing structure in motion in order to operate the tool, and a shock absorber connecting the tool bearing structure to the stand in order to damp the movement of the tool bearing structure, particularly at the moment at which the tire bead unseats from the rim of the wheel.

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: 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: A device for fitting and removing a tire to or from a wheel, that works in conjunction with an instrument having a turntable provided with elements for tightening a rim of the wheel, and with a tool which can be positioned at the height of the top edge of the wheel rim that is mounted on the turntable. The device includes a lever with at least one pressure element that can exert pressure on either an upper or lower bead and/or at least one side of the tire. The lever is fixed in a mobile and revolving manner to a support which is fixed in relation to the instrument. The support is connected to the lever by a single coupling system which allows full movement of the lever between a first position in which the pressure element can exert pressure on one of the upper or lower beads or the sides of the tire surrounding a wheel rim mounted on the turntable of the instrument, and a second position in which the pressure element can exert pressure on the other side and/or the sides of said tire.

Abstract: An eccentric forms part of a cylinder on which a control lever is mounted so that it can rotate in the housing forming part of the arm, where a second eccentric also forms part of the cylinder acting in conjunction with a pressure stud working together with a clamping plate located freely around a guided stop rod along the length of the pivoting arm in the housing and in a guide forming part of the arm, where one extremity of the stop rod works in conjunction with a bearing block forming part of the vertical column, and where a pressure spring is located between the stop rod and the pressure plate, the whole being intended to displace slightly and simultaneously fix the tool at a distance from the wheel, both in the vertical plane and in the horizontal plane.

Abstract: The lever comprises a support in the form of an inverted angle iron in which the horizontal part is curved and bears on the cheek of the tire being removed and the vertical part bears on the tire bead and the wheel rim, said vertical part being extended by a hooking element meant for insertion between the tire bead and the wheel rim so that the tire can be removed, an arm fixed at an angle to the vertical plane on the horizontal part of said support, and a grip fixed to the end of said arm.

Abstract: The apparatus comprises a stand, a head with a central opening and fixed on the stand and on which the wheel to be fitted is placed, a movable disc for exerting pressure on the wheel and part of which is formed by a sleeve provided with an axial opening and which is adjusted in the opening of the head, a locking means under the head for drawing and gripping the sleeve and for locking the disc against the wheel, a rod mechanism and pedal on the stand for controlling the locking means, a movable pivot axle which is adjusted in the opening of the sleeve and can turn there, a second locking means mounted so that it can rotate on the disc and serving to fasten the pivot axle, a lever mounted on the pivot axle, at least one fitting roller mounted on the lever the rolling surface of which is provided with a groove which serves to roll the tire bead over the flange of the wheel rim, and a retaining means forming part of the pivot axle meant for holding the tire in position during fitting.

Abstract: The mechanism comprises a rotatable central shaft with pinion, racks engaging said pinion at two different levels and a change on the outside end of each rock for gripping the wheel, which clamps lie in the same plane.

Abstract: The present device is for fixing a wheel upon a turntable which is rotatingly driven below the tools of a device for fitting and removing a vehicle tire from the wheel. Means are provided to move the jaws along radial arms fixed on the turntable and to drive this table in rotary motion.

Abstract: The appliance comprises a rotatably mounted plate with clamps, a vertical pillar, an arm mounted on this pillar, which arm is pivotable in a horizontal plane above said plate. A bar extending downwards from said arm carries at its lower end a guiding wheel and a pressure wheel. An eccentric is mounted between the vertical pillar and the pivoting arm and permits to pivot the arm for adjusting the position of the pressure wheel at a small distance from the rim of a wheel clamped in the clamps.

Abstract: A device for clamping a motorcycle wheel during fitting or removal of a tire has a base plate which can be gripped by the radially movable jaws of a conventional automobile tire fitting device, a number of arms each pivotably mounted at one end on the base plate for inward and outward radial movement of the other free end of the arm, a wheel carrier on the free end of each arm to act as a support for the motorcycle wheel laid thereon, a clamping stud on the free end of each arm to engage between the spokes of the motorcycle wheel, and a shifting device connected to the baseplate and to each of the arms for moving the free end of the arms inwardly and outwardly and to lock the arms in any position to which they are so moved, whereby the clamping studs may be moved outwardly to abut the inside periphery of the rim of the motorcycle wheel and retain the wheel firmly in position on the clamping device.

Abstract: The present apparatus is for fitting and removing an automobile tire from a wheel and by which it is possible to adjust the tool at a desired distance from the wheel. This apparatus comprises a rotatable table mounted on a frame and including jaws radially movable for gripping a wheel, means for rotating said table and for radially moving said jaws, a column extending vertically from said frame, an arm movable transversally in the column and fitted obliquely and slanting down towards the wheel, a vertical rod carried by and vertically adjustable in height in this rod, a tool carried by the bottom end of said rod for fitting and removing the tire, and means acting between the arm and the vertical column for moving and locking said arm.

Abstract: The present device is for detaching the beads of a tire which adhere to a wheel rim more particularly of heavy vehicles, whereby the wheel is held between a mobile stabilizer shield of an upright fixed frame and an upright mobile backing support and whereby a pressure plate is provided of an in the fixed frame in a vertical plane pivotally suspended pressure cylinder adjustable in height. After the beads are detached, the tire is removed from the wheel by the use of another known device.