| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 156414000 | Building drums, per se | 53 |
| 20080216962 | Bead alignment clip and system for its use for locating and maintaining a tire bead positioning onto a tire core build man-drel in forming a core for manufacturing an elastomeric tire - The invention provides tire bead alignment clips for mounting onto each of a pair of tire beads have a U shape to fit over and clamp onto the tire bead that has received a plies sleeve end folded thereover and each tire clip is for magnetic attachment to each of a like number of spaced permanent magnets that are individually secured, at equal spaced locations, to points along radial arcs taken from a center of each of the sides of a cavity mold that are secured to opposite sides of a tire core build mandrel, and the permanent magnets are like horseshoe magnets having a pair of legs that each have north and south pole ends, and each bead clip side is magnetically attractive to couple to which permanent magnet ends, providing for attaching the plies sleeve ends and tire beads to optimum locations on opposite side of the cavity mold side inner surface and spaced apart from the tire core build mandrel that is for use in building a tire core to receive an elastomeric material directed therearound in a tire formation process. | 09-11-2008 |
| 20090139660 | Tyre Building Drum - A tyre building drum, wherein two coaxial half-drums move in opposite directions along a common axis, and each half-drum has an expandible bead clamping device defined by a ring of sectors, each having a radial rod; the sectors are movable to and from an expanded position, clamping a respective bead bundle, by an actuating device having a powered body movable back and forth along the axis and supporting a number of individual guide members, each of which is connected positively to the radial rod of a respective sector to move the relative sector to and from the expanded position in response to axial displacements of the powered body. | 06-04-2009 |
| 20090242138 | EXPANDABLE MANDREL HAVING ADJUSTABLE WIDTH - A rotary radial expand collapse tire building drum comprises segments defining an outer circumference of said drum, said segments being divided into two sets, one set being located to each opposite side of a transverse central plane of the drum, said central plane being disposed normal to a rotational axis of the drum, said two sets being adapted to be driven by a rotatable hub assembly between a collapsed position in which a formed tire carcass may be removed from the drum and an expanded position in which a tire carcass may be formed on said drum wherein each set of segments are mounted for selective relative axial using positioning means, and adjustment means is located outside of the rotational axis of the drum, which is arranged to adjust an overall working width of said drum. The invention allows for an axial positioning mechanism of a REC building drum. | 10-01-2009 |
| 20090255634 | Cam follower assembly for thin walled cylinder of scroll shaping drum used in tire construction - A scroll shaping drum useful in the construction of tires and including an internal air cylinder having an inner sleeve member and a roller member positioned about the inner sleeve member includes a plurality of cam follower assemblies anchored within the inner sleeve member. Each cam follower assembly includes a hub and a cam follower member positioned about the hub, and the cam follower member of each assembly is accepted by an appropriately-shaped slot defined in the roller member. The inner sleeve member defines an internally-threaded opening for accepting the hub of each assembly, and each hub includes a mounting portion positioned within a corresponding internally-threaded opening of the inner sleeve member. In addition, an externally-threaded insert member having a length which is larger than the thickness of the wall of the inner sleeve member is threadably accepted by the internally-threaded opening of the inner sleeve member and has a central through-opening within which the mounting portion of the hub is force-fitted. | 10-15-2009 |
| 20100101732 | METHOD AND APPARATUS FOR ESTABLISHING OBTAINABLE RANGE OF DIAMETERS OF A WORKING DRUM - Method and apparatus for establishing a range of diameters of the cylindrical working surface of a drum and like devices for grasping, handling, shaping, or other like function, of round or tubular objects, such as tire carcasses and belt and tread packages as employed in the manufacture of vehicle tires. The device includes a plurality of segmented modules adapted to be quickly and releasably manually affixed to a drum or like device in a manner which establishes the range of obtainable diameters of the cylindrical working surface of the existing device. No material structural and/or operational modifications in the basic elements and/or operation of the drum are required. Rather, the existing structural and operational aspects of the existing drum are employed in combination with the present invention. | 04-29-2010 |
| 20100116439 | TIRE BUILDING CORE - A tire building core assembly is provided including a segmented toroidal core formed by a plurality of core segments configured in a closely adjacent array defining an outer tire-building toroidal surface. The tire building surface is configured having tire tread and sidewall build locations. Adjacent core segments provide adjacent and opposed annularly directed peripheral edge surfaces, opposed edge surfaces having interlocking elements that selectively engage to operatively deter relative radial movement between the adjacent core segments. The interlocking elements selectively disengage to operatively facilitate a disassembly of the segmented toroidal core. | 05-13-2010 |
| 20100212836 | Apparatus for joining carcass ply - An apparatus for joining a carcass ply, which butt-joins a wind start end and a wind finish end of a carcass ply wound around a cylindrical drum, is disclosed. The apparatus comprises: a joining section for joining the ends of the carcass ply; and aligning sections for aligning the ends of the carcass ply during joining by the joining section, the joining section and the aligning sections being disposed below the cylindrical drum supported in a horizontal state. | 08-26-2010 |
| 20110024053 | Roller assembly for use during tire construction - A roller assembly for use during tire construction includes a telescoping tube arrangement and a roller positioned thereabout. The telescoping tube arrangement has an inner tube section and an outer tube section and which can be adjusted in length to accommodate the width of the tire component under construction. The roller includes a cylindrical surface of a desired hardness which is positionable into engagement with the outer surface of the tire component under construction and which includes a plurality of roller sections which are positionable about the telescoping tube arrangement and in a side-by-side relationship with one another. In addition, each roller section defines a peripheral surface so that when the roller sections are positioned in a side-by-side relationship along the tube arrangement, the peripheral surfaces of the roller sections collectively provide the cylindrical surface of the roller. | 02-03-2011 |
| 20110024054 | TIRE SHAPING APPARATUS - Disclosed is a folding mechanism including two folding rollers, which are fitted in a swingable manner to a folding finger so as to hold deviated positions of a carcass band in a circumferential direction and in a meridian direction. The folding roller provided frontward of a swinging shaft prevents wheelie, and the folding roller provided rearward of the swinging shaft prevents fitting in a gap at a boundary between a bead lock segment and a bead. A swinging member ( | 02-03-2011 |
| 20110315323 | Modifiable Element for Shaping a Raw Tire Blank - The element ( | 12-29-2011 |
| 20120055634 | METHOD OF BUILDING CARCASS BAND AND STITCHER APPARATUS - A stitcher apparatus for pressing a carcass ply sheet from its outer periphery as to be pressure-bonded onto a rubber sheet member after that the carcass ply sheet is pasted onto the rubber sheet member wound around a building drum, the stitcher apparatus including: a ring-shaped frame; and a plurality of pressure-bond rollers. | 03-08-2012 |
| 20120222821 | DEVICE FOR TURNING UP A TIRE-BUILDING PART ON A TIRE-BUILDING DRUM USING A ROLLER LEVER - The invention relates to a device for turning up a tyre-building part on a tyre-building drum using a roller lever. In order to produce a device for turning up a tyre-building part on a tyre-building drum, by means of which the tyre-building part is turned up without defects, in particular an unintended crease formation in the lateral wall, according to the invention the roller lever ( | 09-06-2012 |
| 20130160951 | BUILDING DRUM WITH LOCKING DEVICE - The invention provides a building drum for building an unvulcanized tyre or air spring using rubber components. The building drum comprises a central shaft and a casing that can be slid onto the shaft. The casing is detachably attached to the shaft via a coupling pin that can be moved to a coupled position for mutually coupling the shaft and the casing and into an uncoupled position in which the casing can be removed from the central shaft. The casing further comprises a locking device with a locking pin, wherein the locking pin is adapted for, in the coupled position of the coupling pin, engaging thereon for substantially blocking a movement of the coupling pin. The locking device comprises a locking member that in a condition in which the locking pin does not engage onto the coupling pin, is placed such that it prevents a connection of lines to the casing, and/or provides an indication of the casing being mounted incorrectly. | 06-27-2013 |
| 20130168023 | Tire Blank Assembly Device Including Removable Members - The device for assembling a green blank form of the crown of a tire comprises: a support having a shape that exhibits symmetry of revolution ( | 07-04-2013 |
| 20130327482 | SUPPORT FOR ASSEMBLING A GREEN TYRE BLANK EQUIPPED WITH MOVABLE ELEMENTS - A support for assembling a green tyre includes a baseplate with symmetry of revolution and members fixed to the baseplate. Each of the members includes: external elements mounted to be movable relative to one another; and a flexible strip attached to the elements of the member, such that the elements of the member are attached to one another via the flexible strip. | 12-12-2013 |
| 20140008023 | PROCESS AND APPARATUS FOR MANUFACTURING PNEUMATIC TYRES - In a process of manufacturing pneumatic tyres, a carcass sleeve is made which includes at least one carcass ply provided with axially opposite flaps turned up around annular anchoring structures, so as to form respective loops. An outer sleeve is positioned around the carcass sleeve, and the latter is radially expanded in order to cause application of same against a radially internal surface of the outer sleeve. After each of the end flaps has been turned up and before radial expansion, only a portion belonging to each of the loops and extending substantially parallel to the respective annular anchoring structure is submitted to a step of carrying out heating under pressure, to make each loop integral with the annular anchoring structure and prevent the turned-up ply/plies from even partly slipping off, during the subsequent radial-expansion step of the carcass sleeve and vulcanisation step of the tyre. | 01-09-2014 |
| 20140027063 | TIRE BUILDING MACHINE WITH EXTENDABLE DRUMS - A tire building machine includes a support housing for rotating the machine about a vertical axis, a support frame operatively attached to the support housing such that the support housing rotates the support frame about the vertical axis, a first drum rotatable about a first horizontal axis by a first motor, the first drum and the first motor being secured to the support frame, a first cylinder for horizontally retracting the first drum along the first horizontal axis from an extended position to a retracted position, a second drum rotatable about a second horizontal axis by a second motor, the second horizontal axis being parallel to the first horizontal axis, the second drum and the second motor being secured to the support frame, and a second cylinder for horizontally retracting the second drum along the second horizontal axis from an extended position to a retracted position. | 01-30-2014 |
| 20140144588 | Tire Building Drum Having Sequenced Segment Expansion - A tire building drum is disclosed having first and second sets of deck segments, disposed in an alternating configuration about a central shaft. Each of the segments is mounted to a pair of axially movable hub units via an associated scissor linkage. The scissor linkages of the first segments are slidably mounted to the hub units and biased toward a median plane of the tire building drum. When the hub units are separated, the second segments are disposed radially inwardly of and between the first segments. Movement of the hub units toward one another through a first range of motion expands the first deck segments to an expanded diameter of the drum, and movement of the hub units toward one another through a second range of motion expands the second deck segments to allow the second deck segments to be received between the first deck segments. | 05-29-2014 |
| 20140360672 | Multi-Piece Sealing Sleeve - A multi-piece sealing sleeve is disclosed. The multi-piece sealing sleeve includes annular first and second layers of a substantially air-impermeable material. The first layer has an inner edge sized to surround a base portion of the tire shaping drum. An outer edge of the first layer extends radially outwardly to overlie at least a portion of a radially expandable and collapsible structure defined by the tire shaping drum. The second layer is sized to overlie and establish sealing engagement with at least a portion of the first layer and a bead seat defined by the radially expandable and collapsible structure of the tire shaping drum. The first and second layers cooperate to establish a substantially airtight seal between the tire shaping drum base portion and the bead seat. | 12-11-2014 |
| 20150144269 | METHOD AND APPARATUS FOR ADJUSTING A TIRE BUILDING MACHINE - A method supports a tire building assembly. The method comprises the steps of: supporting one end portion of a radially collapsible building drum for assembling a green tire; moving the end portion in a first direction by an actuator acting in the first direction; and moving the end portion in a second direction by the actuator acting in the first direction. | 05-28-2015 |
| 20160176137 | TIRE BUILDING DRUM AND ASSEMBLY/DISASSEMBLY APPARATUS THEREOF | 06-23-2016 |
| 156415000 | Axially or widthwise adjustable or collapsible | 15 |
| 20090056879 | Tyre Building Drum - A tyre building drum is disclosed having first and second sets of deck segments, the segments ( | 03-05-2009 |
| 20090133842 | TYRE BUILDING DRUM FOR BUILDING AN UNVULCANISED TYRE - Tyre building drum for building an unvulcanised tyre using tyre components of rubber. The tyre building drum comprises two folding arm units arranged at least substantially symmetrically with respect to the middle of the tyre building drum, which folding arm units are each connected to a folding arm bearing body so as to swivel. Both folding arm bearing bodies can be moved in axial direction of the tyre building drum. Via a first spindle both folding arm bearing bodies can be moved synchronously with respect to each other in axial direction. The tyre building drum further comprises two bead ring core units arranged at least substantially symmetrically with respect to the middle of the tyre building drum, each of the bead ring core units being intended for supporting a bead ring core. Each bead ring core unit comprises a bead ring core bearing body, wherein via a second spindle both bead ring core bearing bodies can be moved synchronously with respect to each other in axial direction. The first spindle and the second spindle are spaced apart from each other in radial direction. | 05-28-2009 |
| 20100000685 | DRIVING APPARATUS OF BUILDING DRUM FOR TIRE - The invention is for enabling one piece of rotation driving means | 01-07-2010 |
| 20100122775 | TYRE BUILDING DRUM FOR BUILDING AN UNVULCANISED TYRE - Tyre building drum having a drum shaft and two drum halves arranged around the drum shaft. In the drum shaft one threaded spindle is arranged. On either side of the centre of the tyre building drum a driving nut is arranged on the spindle. Each driving nut is fixedly connected to the drum half in question via a connection part. Each drum half has a folding arm unit that is connected to the drum half in question so as to swing. The folding arm unit is movable in axial direction of the tyre building drum. Each drum half further has a bead ring core clamping unit intended for supporting and clamping a bead ring core. The bead ring core clamping unit is arranged on a cylindrical part. The cylindrical part is provided with a cylinder slot for accommodating the connection part and with a locking mechanism. The locking mechanism can be brought into engagement with the drum shaft. At engagement of the locking mechanism in the drum shaft the folding arm unit can be moved with respect to the cylindrical part in axial direction of the tyre building drum. | 05-20-2010 |
| 20110303366 | Transfer ring or drum apparatus having adjustable circumference - Tire-making apparatus ( | 12-15-2011 |
| 20120006495 | Anti-Flex Assembly - The “Anti-Flex Assembly” is an assembly for maintaining axial stability in a rotatable, expandable and collapsible drum used in tire manufacturing. A cylindrical rod with at least one helical groove is defined in the outer surface of the cylindrical rod and at least one hardened dowel is aligned so as to protrude into the helical groove of the cylindrical rod. A means to maintain the orientation and protrusion of the hardened dowel protruding into the helical groove(s), and a clamping lock is provided to lock the cylindrical rod in place once the desired width of the rotatable, expandable and collapsible drum has been set, thus providing axial stability of the rotatable, expandable and collapsible drum during tire carcass manufacturing. | 01-12-2012 |
| 20120090787 | Fully Supported Expandable Deck - An expandable deck comprises a plurality of elongated deck carriers mounted upon an expansion mechanism in a generally parallel and cylindrical formation. A fixed rod is mounted upon a first one of the deck carriers. A pivot rod is mounted upon an adjacent second deck carrier. A pivot segment defines a rotation aperture and a guide slot. The rotation aperture is rotatably mounted upon the pivot rod and the guide slot slidingly receives the fixed rod. | 04-19-2012 |
| 20120222822 | Locking Spacer and Method - A locking spacer for use with a tire building drum is disclosed. The locking spacer includes an arcuate panel having an outer surface, an inner surface, opposite first and second curved side surfaces, and opposite first and second straight end surfaces. The panel is sized and shaped to span between and extend along the opposing inner surfaces of the segments. A first fastener is disposed along the first side surface and is configured to secure the first side surface to a first of the pair of segments, and a second fastener is disposed along the second side surface and is configured to secure the second side surface to a second of the pair of segments. The first and second fasteners limit movement of the first and second side surfaces in relation to the segments along a radial direction of the tire building drum. | 09-06-2012 |
| 20120318460 | Drum - A drum for the manufacture of a tire, in particular for winding or clamping a tire body, includes a circular cylindrical drum unit formed from circular-arc-shaped drum segments. The drum segments are movable in a radial direction, transversely to a rotation axis of the drum, such that an external diameter of the drum unit is changeable. The drum further includes an actuation device and a deflection device. The actuation device moves the drum segments. The deflection device has obliquely arranged telescopic guides that transfer an axial movement of the actuation device into a radial movement of the drum segments. | 12-20-2012 |
| 20130075041 | SOLID DECK BEAD LOCK DRUM - A rotatable tire building drum | 03-28-2013 |
| 20140048212 | SLEEVELESS TIRE BUILDING DRUM - A tire building drum and a method of building a tire carcass is disclosed. The tire building drum has a center section comprised of a plurality of segments that are radially and axially movable. The sleeve of the tire building drum over the center section has been eliminated, and instead has two seals located on the outer ends or shoulders of the center section of the tire building drum. The building drum further comprises shoulder sections that are axially movable. The shoulder sections include radially expandable bead locks. The method employs the steps of applying one or more carcass layers, locking the bead locks and moving the center section radially outwardly while moving the bead locks axially inwardly. | 02-20-2014 |
| 20150114571 | UNI-STAGE TIRE BUILDING DRUM - A tire building drum is described which includes a rotatable drum having a center section and a right and left section, wherein the right and left section are each located adjacent the center section, wherein the right and left sections each have a radially expandable bead lock mechanism mounted on a sliding cylinder, wherein the bead lock mechanisms are axially movable independent of each other, wherein the ends of the center section are each connected to a plurality of radially expandable lifter housings, wherein each lifter housing is connected to a linkage system, wherein each sliding cylinder has a front face positioned for engagement with the linkage system, wherein actuation of the sliding cylinder causes the lifter system to radially expand and the radial expansion of the center section. | 04-30-2015 |
| 20150321432 | PROCESS AND APPARATUS FOR ASSEMBLING TYRES - In an assembly station, a carcass sleeve and an outer sleeve manufactured along respective building lines are mutually coupled. Integrated into the assembly station are engagement devices that can be alternatively-coupled to an auxiliary drum carrying an outer sleeve and to a building drum carrying a carcass sleeve. The building drum is engaged on the assembly station before removal of the auxiliary drum. A grip unit picks up the outer sleeve from the auxiliary drum associated with the engagement devices in order to position it around the carcass sleeve carried by the building drum. | 11-12-2015 |
| 20160067935 | PROCESS AND APPARATUS FOR MANUFACTURING TYRES - A plurality of strip-like elements is applied onto a forming drum externally having a substantially cylindrical laying surface. The strip-like elements are disposed in mutually approached relationship to form at least one first annular reinforcing layer on the forming drum itself set to a first work diameter at which each of the applied strip-like elements on the laying surface subtends an arc of a circumference of a width as large as a submultiple integer of the overall circumferential extension of the laying surface itself. Adjustment devices operating on the forming drum subsequently carry out expansion of the latter to a second work diameter larger than the first work diameter, while maintaining its laying surface substantially cylindrical. | 03-10-2016 |
| 20160176138 | SLEEVELESS TIRE BUILDING DRUM | 06-23-2016 |
| 156416000 | Resilient and/or inflatable core | 5 |
| 20090151873 | SLEEVELESS TIRE BUILDING DRUM - The invention provides in a first aspect a method of converting a tire building drum into a sleeveless tire building drum. The method comprising the steps of providing a tire building drum having a center sleeve, removing the center sleeve, providing a plurality of cover plates and a plurality of segments located underneath the coverplates, the segments connected to radially oriented pistons for radial movement of the center section; Providing a plurality of holes on said coverplates, connected the holes to a fluid manifold, and connecting the manifold to a vacuum source. The invention provides in a second aspect, a sleeveless tire building drum which includes a rotatable drum comprising a left and right section and a center section. The center section is radially expandable, and the left and right sections are axially movable. The center section has a plurality of coverplates mounted on the circumference of the center section, the coverplates having an outer surface having a plurality of holes, and a inner surface having a manifold connected to the plurality of holes, said manifold connected to a vacuum source, wherein the center section of the tire building drum does not have an outer sleeve. | 06-18-2009 |
| 20090266490 | Device for building a tyre - Device for building a tyre having a drive unit driving a drum shaft. Around the drum shaft a building drum having a first and a second building drum half is arranged. A pressure medium coupling rotatable about the drum shaft is provided with pressure medium connections. Each building drum half is provided with a number pressure medium connections. The pressure medium connections of the first building drum half are connected to the pressure medium connections of the rotatable pressure medium coupling by means of a first tube set, wherein in the drum shaft pressure medium ducts have been arranged which at one side are connected to the rotatable pressure medium coupling and at the other side are connected to the pressure medium connections of the second building drum half by means of a second tube set. Each tube set is connected to a building drum half mounting ring, which building drum half mounting ring is connectable to the pressure medium connections of the building drum half in question, so that the pressure medium connections of the building drum half in question are connected to the tube set by means of the building drum half mounting ring in question. | 10-29-2009 |
| 20110203738 | DEVICE FOR BUILDING A TIRE CARCASS FOR A VEHICLE TIRE - A device for constructing a carcass for a vehicle tire. In order to provide a device with which the core centering devices can be expanded variably in diameter, wherein the core centering devices can be used at the same time for producing small tire dimensions, and with which at the same time the diameter of the diaphragm supports can be moved by a motor. The bladder support on the side of the movement box is connected to the shaft of the movement box in a fixed manner, with the axial distance for determining the carcass width of the vehicle tire to be produced between the diaphragm support and building drum being defined by positioning of the movement box in the axial direction. The bladder support on the side of the spindlebox is movably attached to the shaft. The axial distance for determining the carcass width of the vehicle tire to be produced between the bladder support and the building drum is defined by positioning in the axial direction. | 08-25-2011 |
| 20120160423 | DEVICE FOR PRODUCING A TREAD FOR A VEHICLE TIRE - A tread for a vehicle tire has an electrically conducting layer axially inside a portion of a first, radially outer rubber layer of the tread. The electrically conductive layer extends from a second, radially inner rubber layer of the tread on the radially inner side of the tread rubber material up to a ground contact surface of the tread. During the tire build-up, an accumulation of rubber material of higher electrical conductivity is built on a first rubber layer of higher electrical conductivity. The accumulation is formed into a ridge web and then less-conductive rubber is laid laterally next to the web, such that the web of rubber material reaches up to the ground contact surface in the finished vehicle tire. The web is shaped by forming rollers, by baffles, or by a forming ring with a corresponding shape. | 06-28-2012 |
| 20140083619 | MULTI BEAD TYPE GREENTIRE MANUFACTURING APPARATUS - Disclosed herein is a multi bead type greentire manufacturing apparatus. The apparatus includes a rubber plate made from a raw material of the greentire and mounted on a winding drum. Additionally, a plurality of gloves and bladders are formed separately to transform the rubber plate ( | 03-27-2014 |
| 156417000 | Collapsible | 12 |
| 20120024481 | BAND DETACHING METHOD IN BAND BUILDING DRUM AND BAND BUILDING DRUM - The invention enables a built band (B) in a cylindrical shape to be easily and surely detached by peeling off the band (B) from being brought into close contact with a drum peripheral face in an expandable and contractable band building drum (D) constituted by two kinds of pluralities of segments ( | 02-02-2012 |
| 20120168087 | Assembly for altering the diameter of transfer ring or drum apparatus through a broad range - Elongate tire-building equipment having circumference-defining apparatus wherein the circumference serves as a forming surface or as a circumference-engaging surface utilizes ramp members which are regularly disposed about the equipment centerline and upon which the circumference-defining apparatus is mounted for movement radially toward and away from the equipment centerline. A thrust plate and an actuator are mounted at the ends of the equipment for movement toward or away from one another along the equipment centerline, and an assembly of guide tracks and guide blocks are interposed between the ramp members and the thrust plate and between the ramp members and the actuator so that the movement of the thrust plate and the actuator toward and away from one another effects the movement of the ramp members radially toward and away from the equipment centerline by a relatively large amount. | 07-05-2012 |
| 20140048213 | SLEEVELESS TIRE BUILDING DRUM WITH INTERCHANGEABLE WIDTH ELEMENTS - A tire building drum and a method of building a tire carcass is disclosed. The tire building drum has a center section comprised of a plurality of segments that are radially and axially movable. The sleeve of the tire building drum over the center section has been eliminated, and instead has two seals located on the outer ends or shoulders of the center section of the tire building drum. The building drum further comprises shoulder sections that are axially movable. The shoulder sections include radially expandable bead locks. The method employs the steps of applying one or more carcass layers, locking the bead locks and moving the center section radially outwardly while moving the bead locks axially inwardly. | 02-20-2014 |
| 20140360673 | Tire Building Drum With Increased Range of Movement - A tire building drum is disclosed. A thrust plate is mounted at a tapered end of a central shaft. An actuator is slidable along the shaft between first and second positions. Arcuate segments are arranged in a circumferential relationship about the shaft to define a working surface. First guide rails are slidably secured to the thrust plate, with a first end of each first rail mounted near a first end of one of the segments and a second end extending radially inwardly along the thrust plate. Second guide rails are slidably secured to the actuator, with a first end of each second rail mounted near a second end of one of the segments and a second end extending radially and axially inwardly along the actuator. Each of the guide rail second ends extends radially inward toward the inwardly tapered shaft portion when the actuator is in the first position. | 12-11-2014 |
| 20140367048 | Mechanical assembly for urging the circumferential segments of a tire-building drum into fully-expanded positions - A tire-building drum having a hollow main shaft and a swing arm rotatably positioned about the main shaft for moving the circumferential surface-defining segments of the drum between collapsed positions and fully-expanded positions as the swing arm is rotatably moved about the swing arm from a first angular position thereabout to a second angular position thereabout includes a mechanical assembly for acting between the swing arm and the main shaft so that upon rotation of the swing arm about the main shaft to its second position thereabout, the mechanical assembly biases the swing arm about the main shaft to continually urge the circumferential segments into the fully-expanded positions. | 12-18-2014 |
| 20150059984 | TIRE BUILDING DRUM - A tire building drum is described that includes an inboard section, a center section and an outboard section. The inboard section has a rotating spindle and a sliding shaft, and the sliding shaft is slidable within the spindle. The inboard section further includes a radially expandable bead lock device mounted on the spindle. The center section has an internal hub mounted on the sliding shaft and further comprises a plurality of tiles that are radially expandable. The outboard section of the drum is mounted on a distal end of the sliding shaft, and further includes a radially expandable bead lock device. The center section and the outboard section are each axially movable by sliding of the sliding shaft. | 03-05-2015 |
| 20150306832 | RELEASE MECHANISM FOR A TIRE BUILDING DRUM - A release mechanism for a rotatable tire building drum includes a continuous hoop of a non-stick and elastic polymer, the hoop further including a plurality of flaps each attached to the hoop at one end and unattached to the hoop at an opposite end. | 10-29-2015 |
| 20160023415 | MOLDING DRUM - Even when a radial length of a swing arm is increased, no gap is generated between adjacent segments, and tires of various sizes can be handled while roundness of a drum is maintained. An expandable molding drum has a plurality of segments constituting a circumferential surface, the molding drum having a plurality of swing arms having one end portion swingably connected to an outer circumferential surface of a cylindrical slider externally fitted with a drum shaft and having the other end portion swingably connected to the segment and expanding/contracting the segment along with movement of the slider in a drum shaft direction, and adjacent end portions of one end portions of the swing arms being swingably connected to the outer circumferential surface of the slider at intervals from each other in the drum shaft direction. | 01-28-2016 |
| 20180022048 | CENTER DECK ASSEMBLY FOR TIRE BUILDING DRUM | 01-25-2018 |
| 156418000 | Rack and pinion type actuator | 1 |
| 20100230055 | DRIVING APPARATUS FOR TIRE BUILDING DRUM - The invention provides a driving apparatus for a tire building drum which can reduce load when the drum is rotating, which enables stable expanding and contracting operations and in which a center shaft portion ( | 09-16-2010 |
| 156419000 | Resilient spring actuated | 1 |
| 20140374027 | Mechanical assembly for urging the circumferential segments of a tire-building drum into fully-expanded positions - A tire-building drum having a hollow main shaft and a swing arm rotatably positioned about the main shaft for moving the circumferential surface-defining segments of the drum between collapsed positions and fully-expanded positions as the swing arm is rotatably moved about the swing arm from a first angular position thereabout to a second angular position thereabout includes a mechanical assembly for acting between the swing arm and the main shaft so that upon rotation of the swing arm about the main shaft to its second position thereabout, the mechanical assembly biases the swing arm about the main shaft to continually urge the circumferential segments into the fully-expanded positions. | 12-25-2014 |
| 156420000 | Toggle linkage lever type actuator | 1 |
| 20180022049 | CENTER MECHANISM FOR TIRE BUILDING DRUM | 01-25-2018 |
