Device for turning up the tire sidewalls on a tire building drum
First Claim
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1. A device for turning up sidewalls of a tire, the device comprising:
- a first lever supporting body arranged on a first side of a drum center and being movable in an axial direction;
a first lever system pivotally connected to the first lever supporting body;
a second lever supporting body arranged on a second side of the drum center and being movable in an axial direction;
a second lever system pivotally connected to the second lever supporting body;
a base spindle adapted to move the first and second lever supporting bodies in an axial synchronous manner relative to each another;
first and second movable core stretching devices arranged on the first and second sides of the drum center; and
a hollow spindle that rotates relative to the base spindle, the hollow spindle being structured and arranged to move the first and second core stretching devices in the axial direction while the base spindle moves the first and second lever supporting bodies,wherein the first and second sides are arranged on opposite sides of the drum center.
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Abstract
Device for turning up sidewalls of a tire. The device includes a first lever supporting body arranged on a first side of a drum center and being movable in an axial direction. A first lever system pivotally connected to the first lever supporting body. A second lever supporting body arranged on a second side of the drum center and being movable in an axial direction. A second lever system pivotally connected to the second lever supporting body. The first and second sides are arranged on opposite sides of the drum center. A base spindle is adapted to move the first and second lever supporting bodies in an axial synchronous manner relative to each another.
9 Citations
30 Claims
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1. A device for turning up sidewalls of a tire, the device comprising:
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a first lever supporting body arranged on a first side of a drum center and being movable in an axial direction; a first lever system pivotally connected to the first lever supporting body; a second lever supporting body arranged on a second side of the drum center and being movable in an axial direction; a second lever system pivotally connected to the second lever supporting body; a base spindle adapted to move the first and second lever supporting bodies in an axial synchronous manner relative to each another; first and second movable core stretching devices arranged on the first and second sides of the drum center; and a hollow spindle that rotates relative to the base spindle, the hollow spindle being structured and arranged to move the first and second core stretching devices in the axial direction while the base spindle moves the first and second lever supporting bodies, wherein the first and second sides are arranged on opposite sides of the drum center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24)
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25. A device for turning up sidewalls of a tire, the device comprising:
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an externally threaded base spindle; an externally threaded hollow spindle surrounding at least a portion of the base spindle; a first lever supporting body arranged on a first side of a drum center; the first lever supporting body being movable in an axial direction by rotation of the base spindle; a first lever system comprising a plurality of levers pivotally connected to the first lever supporting body; a second lever supporting body arranged on a second side of the drum center; the second lever supporting body being movable in an axial direction by rotation of the base spindle; a second lever system comprising a plurality of levers pivotally connected to the second lever supporting body; and first and second movable core stretching devices arranged on the first and second sides of the drum center and threadably engaging the hollow spindle, wherein the first and second sides are arranged on opposite sides of the drum center. - View Dependent Claims (26, 27, 28)
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29. A device for turning up sidewalls of a tire, the device comprising:
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an externally threaded base spindle; an externally threaded hollow spindle surrounding at least a portion of the base spindle; a first lever supporting body arranged on a first side of a drum center; the first lever supporting body being movable in an axial direction by rotation of the base spindle; a first lever system pivotally connected to the first lever supporting body; a second lever supporting body arranged on a second side of the drum center; the second lever supporting body being movable in an axial direction by rotation of the base spindle; a second lever system pivotally connected to the second lever supporting body; a first movable core stretching device that is movable axially towards the drum center via rotation of the hollow spindle; and a second movable core stretching device that is movable axially towards the drum center via rotation of the hollow spindle, wherein the first and second sides are arranged on opposite sides of the drum center. - View Dependent Claims (30)
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Specification