Schenck Rotec Corporation

Gebr.hofmann Gmbh & Co Kg Maschinenfabrik

Hofmann Maschinenbau Gmbh

Werner Lehr

Martin Rogalla

Andreas Peinelt

Gunther Himmler

Dieter Thelen

Heinz Ronge

Roland Lehmann

A filling bell can be used to fill a tubeless tire arranged on a wheel rim with a pressurized gas. The filling bell includes an annular sealing face which can be pressed onto a side wall of the tire. The filling bell also includes a central opening, into which the wheel rim may penetrate. The sealing face is formed by an annular flange which surrounds the opening and includes a plurality of wedge-shaped segments. The width of the wedge-shaped segments increases away from the opening. The wedge-shaped segments are displaceable relative to one another and substantially radially relative to the opening.

Filling bell for filling a tubeless tire

A device for mounting a pneumatic tire onto a vehicle wheel rim comprises a handling robot, including a robot hand (), which is movable about a plurality of axes and comprises a rotationally drivable flange () and a gripper () attached thereto, the gripper including a base element () and at least two gripper arms () which are movable radially relative to the centre axis of the gripper (). The gripper arms () are coupled to a synchronization device, which synchronizes the radial movement of the gripper arms () and includes a disc (), mounted on the base element () of the gripper () so as to be rotatable about the centre axis of the gripper and rotationally drivable via a motor, and coupling members () fixed to the disc () and the gripper arms () via hinged joints () in such a way that a rotation of the disc () produces a synchronous radial movement of the gripper arms ().

Device for mounting a pneumatic tire onto a vehicle wheel rim

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.

Apparatus for mounting a tire on a vehicle wheel rim

A tire filling apparatus preferably includes a support and seal arrangement on which a wheel-tire combination is supported in a horizontally lying orientation, a tire filling plate, and a plurality of differently-sized tire filling rings. Based on the diameter of the wheel-tire combination to be filled with air, a properly sized one of the filling rings is selected and positioned coaxially along the wheel axis between the tire and the filling plate. The filling plate moves toward the tire, sealingly contacts the filling ring, and presses the filling ring against the upwardly facing tire sidewall, until an open air filling gap is formed between the tire sidewall bead and the wheel rim. Pressurized air is introduced through the filling plate, the filling ring, and the open air filling gap into the tire interior, until the gap is closed by the increasing air pressure in the tire.

Multi-size tire filling apparatus and method

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.

Improper working position detection for tire mounting apparatus and method

In a device for clamping the rim of a vehicle wheel, in particular for mounting tires, comprising a shelf (), onto which the rim may be deposited by one side, and comprising clamping jaws (to), which may be moved radially relative to the rim, for clamping the rim edge adjacent to the shelf (), two pairs of clamping jaws (to), of which the paths of movement intersect at right angles, are provided. The movement of the clamping jaws (to) is generated by a cylinder () and is synchronized by means of a gear unit ().

Clamping device for rims, particularly for mounting tires

In a method and apparatus for centering a rotary body such as a motor vehicle tire the rotary body is put into a centered position by means of a plurality of centering means which engage the circular periphery of the rotary body at distributed positions around the periphery thereof and which are acted upon by a centering force. The centering force acting on the centering means is set to be proportional to the diameter of the rotary body.

Method and apparatus for centering a rotary body

An apparatus for monitoring and controlling the tire inflation pressure in a tire testing machine comprises first and second measuring rim portions for mounting a tire therebetween, and a pressure sensor operable to detect the inflation pressure of the tire. The pressure sensor has a pressure-receiving surface which is arranged to directly detect the pressure in the interior of the tire. The pressure sensor rotates with the tire in a tire testing run. A spindle connected to the measuring rim portions and rotatable therewith has conduit means for supplying compressed air to inflate the tire. A control means is operable to close off the conduit means, thereby constituting a closed volume of air defined by the space within the tire, the space between the measuring rim portions holding the tire, and the conduit means in the spindle, that volume of air rotating as a unit with the components defining same, during a tire testing operation.

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Modautal, Germany

Werner Lehr