• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    Assembly drum for the manufacture of a tire comprising a support (20), a central shaft (30) and an outer circumferential surface coaxial with the axis of rotation of the drum having a cylindrical main surface (100) delimited axially by a shoulder (101) extending through a lateral protuberance (102) for receiving products to be joined, a plurality of segments together defining the cylindrical main surface, said segments being divided into first and second group of adjacent segments (103a, 103b) movably mounted between a first position in which they are juxtaposed circumferentially and a second position in which the adjacent segments are radially offset. According to the invention, several adjacent bent levers (140) form, in the expanded position of the drum, the shoulder (101) and the protuberance (102) and each bent lever (140) is hingedly mounted on the segment (103a, 103b). and on the support (20).
    公开号:FR3018219A1
    申请号:FR1451866
    申请日:2014-03-07
    公开日:2015-09-11
    发明作者:Gerard Bor
    申请人:Michelin Recherche et Technique SA Switzerland ；Compagnie Generale des Etablissements Michelin SCA；Michelin Recherche et Technique SA France；
    IPC主号:
    专利说明:

    [0001] The present invention relates to an assembly drum for the manufacture of tires. The invention relates more particularly to an assembly drum having shoulders on which the or the rods are deposited during assembly by a lateral approach on said shoulders. Such a drum allows successive implementations on the cylindrical external surface of reception of the various rubber-based plies, including a carcass ply, and the installation, on the shoulders located in the vicinity of the axial ends of the receiving surface, rods and semi-finished products or profiles based on rubber mix and their maintenance assembled with the rubber-based webs previously set up and folded at the shoulders. The rod and the semi-finished products are held against the shoulder by gluing the products together. The removal of the drum from the carcass formed thereon requires a reduction of the circumference of the drum to release the carcass and provide clearance between the outer circumference of the drum and the inner circumference of the carcass. The drum must therefore be radially retractable in order to be able to remove the tire blank thus formed. Such a drum generally comprises a plurality of segments movable radially between an extended or working position of the drum and a retracted position thereof. In addition, some tire carcasses have inclined shoulders which further require axial withdrawal of the segments. Thus, the publication WO 02/053355 in the name of the applicants describes such an expandable assembly drum inclined shoulders. The assembly drum comprises a body rotatably mounted on a central shaft having a cylindrical assembly surface formed of a plurality of shoulders segments. The segments are circumferentially adjacent, they are provided with cover plates to ensure a circular-shaped outer face and are mounted with radial and axial displacement between an expanded position of the drum and a retracted position of the drum. A disadvantage of this drum is the use of vacuum valves connected to a pneumatic circuit in order to ensure the maintenance of the components at the shoulders, which requires a complementary power source, complicates the construction of the drum and makes it less reliable in operation. Another disadvantage of such a drum is the actuation of the segments which is made using a rod which follows the profile of a cam in unfolded position, the return to the retracted position being provided by an elastic membrane which envelope segments, which raises concerns of reliability during wear or aging of the membrane. In addition, the drum has a large number of segments, a number that increases with the difference in diameter between the working position and the retracted drum. Therefore, this drum is not suitable for the manufacture of small diameter carcasses, nor for those having a significant difference between the diameter of the cylindrical outer surface and the diameter measured at the heels thereof. A solution has been described in document FR 2 509 663 where the drum comprises two different groups of segments, of the key and vault type, arranged successively in the circumferential direction. The segments are movably mounted between an unfolded drum position in which all segments are circumferentially adjacent and a retracted drum position in which the segments are radially offset and recessed. Each segment is connected by articulated actuating arms to an axially movable central slider, two coaxial sliders being provided inside the drum, one connected to the key segments and the other to the vault segments. The drum also comprises means for moving the slides. The shoulders are connected by a toothed sector mechanism and rack to the actuating arms of the segments, a mechanism that ensures their axial displacement relative to the segments and at the same time as these to allow the extraction of the tire blank made on the drum. The adjustment of all the racks proves difficult to obtain concentric segments parallel to the axis of the drum. In a variant, the drum comprises shoulders mounted articulated on the segments. Each shoulder is mounted by means of a tie rod articulated on an articulated element mounted to tension spring relative to the segment. Actuation of the articulated element is effected by means of a toothed sector of an actuating arm of a segment which engages with an articulated cam and which pushes the pulling of the shoulder outwards in unfolded position of the drum. Such a traction spring solution poses reliability problems in the event of blockage or rupture of the spring. The shoulders being kinematically connected to the segments, the radial movement of the segments simultaneously causes the displacement of the shoulders either in an axial direction of sliding or pivoting about an axis perpendicular to the axis of the drum to clear the shoulders by relative to the parts forming the heel of the tire blank. However, the actuating mechanism segments and shoulders of the drum according to this document is complex and cumbersome, which has consequences on the dimensions, reliability and cost of the drum. In addition, the large number of articulated parts constituting the drum, beats and important operating games are to be taken into account, games that amplify with the wear of the mechanisms. The invention aims to overcome all of these disadvantages. In addition, the need for a retractable assembly drum having shoulders of sufficient height to allow the manufacture of a tire blank whose heel area is made only by lateral approach, without gum movements at the level the shoulder of the drum is still present. This object is achieved by the invention which proposes an assembly drum for the manufacture of a tire comprising a support, a central shaft and an outer circumferential surface coaxial with the axis of rotation of the drum and having a surface main cylindrical axially delimited by a shoulder extending by a lateral protuberance for receiving products to be assembled, a plurality of segments together defining the cylindrical main surface, said segments being divided into first and second groups of adjacent segments movably mounted between a first position in which they are juxtaposed circumferentially and a second position in which the adjacent segments are offset radially, characterized in that several adjacent bent levers form, in the expanded position of the drum, the shoulder and the protuberance and that each crank lever is articulated on the segment and on the support . Such an angled lever comprises at least two rigid arms which make a given angle between them. The bent lever constitutes the shape which, by revolution about the axis of the drum, defines the surface of the shoulder and that of the lateral protuberance of the assembly drum, which surfaces are coaxial with the cylindrical outer surface and the rotation axis of the drum. Such an angled lever is rigid enough to be able to cash without deforming the rolling forces applied to the shoulders during assembly to adhere the components together. The articulated mounting of the lever bent on the edge of each segment and on the support allows, during actuation in pivoting of the lever around the support, a large amplitude of tilting of the lateral portion of the drum during the radial withdrawal of segments and a return to its retracted position, and this reliably in operation. This allows a great height of the shoulder of the drum, while limiting the games and beats in the joints. Furthermore, such tilting of the bent lever allows the carcass to be removed without constraining or causing the components assembled together to slide. Such a drum makes it possible to achieve the heel area only by a lateral approach of the components on the drum, without constraining these components (it is understood without folding or deformation of one of the components at the level of the shoulder) during the assembly. assembly of the carcass on the drum, while preventing the sliding of the components between them during the extraction of the carcass. The heel area of the carcass or tire blank thus obtained is close to the final shape thereof. Preferably, the drum of the invention comprises positive actuating means pivoting each lever bent around an axis perpendicular to the drum axis. By means of positive actuation pivoting comprises means comprising a mechanical member in motion which drives the lever bent in pivoting by direct contact or by means of rigid elements during movement of the segments to the expanded or retracted position drum. Such positive actuation ensures a reliable pivoting of the lever so that the joint which connects the cranked lever to the end of the segment can pass from a first position, in which it is at the the outer cylindrical surface of the segment and overhangs the second joint which connects the lever to the support, to a second position in which it descends at least substantially at the same level as that of the second. According to an advantageous aspect of the invention, the segments comprise axially and radially displaceable end portions between a first position in which the cylindrical main surface of the segments has a diameter and an axial length greater than those of a second one. position. Preferably, the segments comprise central portions supported by radial arms by a central ring mounted on the central shaft of the drum and that said end portions are slidably mounted relative to the central portions. According to the invention, said elbow lever is a one-piece rigid piece having a general Z shape. Such a lever comprises three arms, the first and the second defining the surfaces of the shoulder and the lateral protuberance, whereas the third serves as pivotal actuation. Advantageously, the bent levers are pivotally movable about an axis perpendicular to the longitudinal axis of the drum being driven by a movable ring in translation on the central shaft. The axial displacement, parallel to the longitudinal axis of the drum, of a ring engaging with one of the ends of each lever directly causes the pivoting movement of the crank lever around a pivot axis of the support which is perpendicular. to the longitudinal axis of the drum. According to an advantageous aspect of the invention, each ring is connected to a group of segments and the rings are remotely mounted relative to each other on the central shaft. This allows to independently operate each group of segments. Preferably, the drum according to the invention comprises actuating means in a symmetrical approximation or separation of the rings relative to each other. According to an advantageous aspect of the invention, said actuating means comprise an abutment plate secured to the ring gear and mounted with a pre-set axial clearance with respect to the ring gear. This allows you to move and move a group of segments first. According to the invention, the bent lever comprises a substantially radial arm in the expanded position of height greater than or equal to 50 mm. The height of the radial arm of the angle lever defines the height of the shoulder of the drum. A drum having a shoulder height greater than 50 mm makes it possible to produce the bead area of the blank of a tire larger than 16 "only by a lateral approach of the components on the drum, without constraining these components (it will be understood that without folding or deformation of one of the components) during the assembly of the carcass on the drum, while preventing the components from sliding together during the extraction of the carcass. [0026] The invention will be better understood thanks to following the description, which is based on the following figures: - Figure la is an axial sectional view of the assembly drum of the invention with only two adjacent segments shown in the expanded position, - Figure 1b is an axial sectional view of the assembly drum of the invention with only two adjacent segments shown in the retracted position, - Figure 2a is a front view and Figure 2b is a cross sectional view. FIG. 3a is a front view and FIG. 3b is a cross-sectional view of a drum of the invention in retracted position, FIG. 4 is a view of a drum of the invention in an expanded position; FIG. kinematic diagram of the drum showing a segment of the first group of segments of the drum in an expanded position; - Figure 5 is a kinematic diagram of the drum showing a segment of the second group of segments of the drum in expanded position; FIG. 6 is a kinematic diagram of the drum showing the segment of FIG. 4 in the retracted position; - Figure 7 is a kinematic diagram of the drum showing the segment of Figure 5 in the retracted position. In the various figures, identical or similar elements bear the same reference. Their description is not systematically repeated. In Figures la and 1b, there is shown an assembly drum 10 having a support 20 secured to a central shaft 30. The central shaft 30 is rotated with the support 20 about a longitudinal axis XX 'of the drum. The assembly drum 10 has an outer circumferential surface having a cylindrical main surface 100 for receiving products to be assembled delimited axially by a shoulder 101 which extends axially at its base by a lateral protuberance 102. The main cylindrical surface 100 is constituted by segments juxtaposed circumferentially in the expanded position or working drum and mounted to radial and axial displacement relative to the support 20 mounted on the shaft 30. The segments allow to retract radially drum 10 for the extraction of carcasses made on the drum . The segments constitute a set of several segments of a first and second group of segments alternately and circumferentially adjacent. Thus, the circumferentially side faces of the segments 103a of a first group of segments are convergent outside the drum, these segments are called key segments and the circumferential side faces of the segments 103b of a second group are converging inside. of the drum, these segments are called arches segments. When actuated, the key segments are moved radially inward before the arch segments, between an expanded or working position of the drum visible in Figures 2a and 2b, when the side faces of two adjacent segments are in contact, and a retracted position thereof visible in Figures 3a and 3b, the diameter of the casing constituted by the outer surfaces of the segments 103a being smaller than that of the casing constituted by the outer surfaces of the segments 103b in the retracted or folded position of the drum 10. The drum 10 has a lateral protuberance 102 integral with the shoulder 101 having a generally cylindrical bearing surface of diameter smaller than that of the cylindrical main surface 100 so that the shoulder 101 remains clear to allow the installation of the rods and other semi-finished products intended to achieve the heel area by a lateral approach. According to the invention, several adjacent bent levers 140 form the shoulder 101 and the lateral protuberance 102 of the drum 10. The bent lever 140 is a rigid piece which is articulated on the edge of a segment 103a. 103b and on the support 20 of the drum. The lever thus comprises a first substantially radial arm 141 in the expanded position of the drum which extends laterally by a second arm 142. The arm 142 comprises a raised seat surface 144 arranged close to the junction with the radial arm 141 and having a slope to facilitate the introduction of components. The seat 144 is able to receive and support the components of the tire blank for the purpose of rolling. The envelope surface passing through the first arms 141 forms the shoulder 101 and the one passing through the arms 142, more particularly the seats 144, forms the lateral protuberance 102 of the assembly drum 10. The angle formed between the arms 141 and 142 lever 140 can be straight, acute or obtuse and varies between 80 ° and 100 °. When the shoulder is inclined outwards relative to the radial direction (or it forms an acute angle with the lateral protuberance), the heel area of the carcass obtained has a shape close to the final shape of the tire and the movements components are very limited or even nil. When the shoulder is inclined inwards (or it forms an obtuse angle with the radial protuberance), the shape of the blank is better suited to its press. In the example shown in the figures, the support 20 is in the form of an end flange fixed on the shaft 30, two end flanges laterally delimiting the internal volume of the drum 10. Flanges 21 in U uniformly distributed over the circumference of the flanges serve as support for the joints of the levers 140. Advantageously, the elbow lever 140 is a rigid piece having a generally Z-shaped three arms 141, 142, 143 pivotally mounted around three joints 110, 120, 130 axes perpendicular to the longitudinal axis XX 'of the drum. The lever 140 has a first arm 141 forming a shoulder, a second arm 142 forming a lateral protrusion and a third arm 143 for pivoting operation. The first hinge 110 connects the lever 140 to a segment 103a, respectively 103b, a second hinge 120 connects it to the support 20, and the third 130 connects it to a lateral ring 150, 160 coaxial with the shaft 30 of the drum 10. A each end of the drum 10, two lateral rings 150, 160 are rotatably mounted with the support 20 and with the possibility of longitudinal displacement parallel to the axis XX 'of the drum. More particularly, the rings 150, 160 are caused to move in translation in opposite directions by means of a screw and nut assembly 170, as will be explained later. Each segment 103a, 103b is made in three parts: two end portions 103a ', 103b' identical and symmetrical with respect to a median vertical plane and a central portion 103a ", 103b". The end portions of the segments are connected by means of the crank levers 140 to the support 20, and the central portions of the segments are connected by radial arms 50 to a central ring 40 fixed to the shaft 30. The end portions of each segment are slidably mounted in translation on two longitudinal rods 60 fixedly mounted on the central portion of the segment and protruding on either side thereof. The longitudinal rods 60 serve to hold and guide the end portions relative to the central portion of the segments. This arrangement makes it possible to prevent the end parts of the segments from tilting and to guide them parallel to the central axis X-X 'of the drum 10 during the displacement of the segments between the two extreme positions of the drum. The central part of each segment supports a tile 70 fixedly mounted on the outer surface thereof and having a length such that it ensures the overlap of the interstices formed between the different parts of the segment when the latter moves between them. extreme positions of the drum 10. The kinematics of the drum and segments 103a, 103b will be explained with reference to FIGS. 4 to 6. The drum is rotated about its central axis XX 'with the aid of an engine. M1 coupled to the shaft 30. A motor M2 is coupled to a transmission shaft 180 which rotates a screw 171 via a set of gears 181. The screw 171 has two threaded ends, a first 172 having a step to the left and a second 173 having a right step. Each threaded end cooperates with a nut 174, 175 each connected to a ring gear 160 to allow a symmetrical approach or separation of the rings 160 in the direction of rotation of the screw 171. In what follows, to explain the concept of the invention will be described in detail only one axial half, including the apparatus on the left in Figures 4 to 6, the mounting of the segments being symmetrical with respect to a vertical median plane containing the longitudinal axis of the radial arms 50. In FIG. 4 a key segment 103a is seen in the expanded position of the drum 10 and in FIG. 6 the same segment in the retracted position of the drum. The end portion 103a 'of the key segment has a cylindrical shell sector shape of a thickness of a few mm to a few cm whose outer lateral rim is rounded and supports the axis of a hinge 110 around which is mounted A lever 140 is pivotally mounted. The lever 140 is pivotally mounted on the support 20 around a hinge 120 and is also pivotally mounted about a hinge 130 relative to the ring gear 160. More particularly, the hoop 160 has a disc shape whose periphery is provided with radial arms having flanges 161 (FIG 1) for fixing the connecting bars 162, each bar being fixed by means of an axis 163 on the ring 160. The pivot axis of the hinge 130 is at the end of the connecting bar 162 opposite that of attachment to the ring gear 160, the displacement in longitudinal translation of the ring gear 160 enabling the lever 140 to pivot about the hinge xe of the hinge 120, the oscillations of the hinge 130 being collected by the connecting bar 162. In a variant, the radial arms of the ring 160 can be made in one piece with the connecting bars 162 in which case their ends terminate with guide grooves for rollers mounted at the end of the arms 143. [0037] In FIG. 5, an arch segment 103b is shown in the expanded position of the drum 10 and in FIG. 7 the same segment in position retracted from the drum. The end portion 103b 'of the arch segment has a cylindrical shell sector shape with a thickness of a few mm, the external lateral rim of which comprises at its center a hinge axis 110 around which is pivotably mounted a The lever 140 is pivotally mounted on the support 20 around a hinge 120 and is also pivotally mounted about a hinge 130 relative to the ring gear 150. More particularly, the ring gear 150 has a general shape of disc with several radial arms, the end (FIG 1) of each arm forming a guide groove 151 for a roller 152 mounted at the end of the arm 143. The groove 151 has a U-shaped axial section and a width exceeding that of a roller 152. The groove 151 serves as receiving housing and guide the roller 152 during the axial displacement of the crown 150. The crowns 150 and 160 are coaxial with the axis XX ' and are mounted s so that their respective radial arms are alternated circumferentially, an arm of a crown being angularly equidistant from the arms of the other ring. The key segments 103a and the vault segments 103b are equipped with levers 140 which are identical. In the expanded position of the drum, when the key segments and arches are circumferentially adjacent, as can be seen in FIGS. 4 and 5, the pivot axes of the articulations 130 of all the segments 103a, 103b are in the same vertical plane passing through the longitudinal axis of the drum and are tangent to a common center circle passing through the axis XX 'of the drum 10 and included in said vertical plane. The rings 150 and 160 are mounted to possibility of displacement in longitudinal translation when actuated by a stop plate 190 secured to the end of the nut 174 of the screw-nut device 170. The ring 150 is mounted with play on three anti-rotation rods 191 parallel to the axis XX 'and uniformly distributed over its circumference. The rods 191 comprise an upper stop 194 to limit the axial stroke of the crown 150 in the expanded position of the drum. A low stop 195 is mounted integral with the support 20 and limits the axial stroke of the ring 160 in the retracted position of the drum. The rings 150, 160 are axially offset (it is understood in the direction of the longitudinal axis X-X '), the ring 160 occupying the furthest position from the center of the drum 10. The stop plate 190 and the ring 160 are fixed at the lateral ends of a bearing 193. The ring 150 is slidably mounted on the bearing 193. In the expanded position of the drum 10, the rings 150 and 160 are maintained at a predetermined distance from each other. the other using compression springs 192, several springs 192 being distributed circumferentially between the two rings. A functional game "j" of predetermined value is provided between the front face of the stop plate 190 and that vis-à-vis the crown 150, this game for operating the key segments 103a first. In the example shown in the figures, the arm 141 of the angle lever 140 has a height of 50 mm, which is suitable for the manufacture of a tire 16. "Levers having arms 141 of greater height can be used. provided, by arranging the internal free volume of the drum to allow greater axial displacement of the rings 150, 160 and a wider tilting of the lever 140 so that the hinge 110 can reach a level substantially lower than 120. The drum illustrated in the figures comprises nine key segments 103a and nine arch segments 103b.The displacement of the segments 103a, 103b between the expanded and withdrawn position of the drum is determined by the axial stroke of the rings. 150 and 160. An adjustment of the high stops 194 and lower 195 makes it possible to modify the displacement of the segments. [0043] In operation, the motor M2 is first controlled in order to bring all the segments In this position, a carcass is made by winding up the various rubber-based layers on the assembly drum 10 rotated by the motor M1. The rods and other profiled products based on rubber are laid by a lateral approach on the shoulder 101 and are supported at their base on the lateral protuberance 102. The lateral faces of the levers 140 are advantageously covered with plates 145 fixedly mounted on them. in order to form a substantially continuous laying surface at the level of the shoulder 101 and on which the layers of rubber can bear during the rolling to their adhesion relative to each other. When the manufacture of the carcass is complete, it controls the actuation in the opposite direction of the motor M2 to collapse the segments. The setting in motion of the screw-nut device 170 moves the abutment plate 190 which pushes the crown 160 towards the lateral flange vis-à-vis which triggers, via the pivoting of the levers 140, the radial displacement inwards key segments 103a. Thus, only the key segments 103a are actuated on a stroke of the stop plate 190 equal to the value of the set "j", then this simultaneously pushes the rings 150 and 160, which results in moving radially towards the drum inside the set of key segments 103a and vault segments 103b. At the end of the axial displacement stroke of the abutment plate 190, all the segments are retracted radially, the key segments are in the position shown in FIG. 6, the arches segments in that of FIG. drum being visible in Figures 3a and 3b. By pivoting the levers 140, the end portions 103a ', 103b' of the segments 103a, 103b move radially inward and axially towards each other. At the same time the shoulder inwards and is completely below the inner diameter of the heel area and the carcass can be removed from the assembly drum 10 and sent to finish. Other variants and embodiments of the invention may be envisaged without departing from the scope of the invention.
    权利要求:
    Claims (10)
    [0001]
    REVENDICATIONS1. Assembly drum (10) for the manufacture of a tire comprising a support (20), a central shaft (30) and an outer circumferential surface coaxial with the axis of rotation of the drum and having a cylindrical main surface (100) defined axially on each side by a shoulder (101) extending by a lateral protuberance (102) for receiving products to be joined, a plurality of segments together defining the cylindrical main surface, said segments being divided into first and second group of segments (103a , 103b) mounted movably between a first position in which they are juxtaposed circumferentially and a second position in which the adjacent segments are radially offset, characterized in that a plurality of adjacent bent levers (140) form, in the expanded position of the drum, the shoulder (101) and the protuberance (102) and that each elbow (140) is articulated on the s eg (103a, 103b) and on the support (20).
    [0002]
    2. Drum according to claim 1, characterized in that it comprises positive actuating means pivoting each bent lever (140) about an axis perpendicular to the axis (X-X ') of the drum.
    [0003]
    Drum according to one of claims 1 or 2, characterized in that the segments (103a, 103b) comprise end portions (103a ', 103b') axially and radially displaceable between a first position in which the main surface cylindrical segments has a diameter and an axial length greater than those of a second position.
    [0004]
    4. Drum according to the preceding claim, characterized in that the segments (103a, 103b) comprise central portions (103a ", 103b") supported by radial arms (50) by a central ring (40) mounted on the shaft central portion (30) of the drum and said end portions (103a ', 103b') are slidably mounted with respect to the central portions.
    [0005]
    5. Drum according to one of the preceding claims, characterized in that said elbow lever (140) is a one-piece rigid piece having a generally Z-shape.
    [0006]
    6. Drum according to the preceding claim, characterized in that the bent levers (140) are pivotally movable about an axis perpendicular to the longitudinal axis (X-X ') of the drum being driven by a ring (160, 150) movable in translation on the central shaft (30).
    [0007]
    Drum according to Claim 6, characterized in that each ring (160, 150) is connected to a group of segments (103a, 103b) and the rings (160, 150) are mounted at a distance from each other. other on the central shaft (30).
    [0008]
    8. Drum according to claim 7, characterized in that it comprises actuating means in a reconciliation or a symmetrical spacing of the rings (160, 150) relative to each other.
    [0009]
    9. Drum according to claim 8, characterized in that said actuating means comprise a stop plate (190) integral with the ring gear (160) and mounted with a pre-established axial clearance with respect to the ring gear (150).
    [0010]
    Drum according to one of the preceding claims, characterized in that the bent lever (140) comprises a substantially radial arm (141) in an expanded position of height greater than or equal to 50 mm.
    类似技术:
    公开号 | 公开日 | 专利标题
    EP3113939B1|2018-05-02|Assembly drum for manufacturing tyres
    WO2005068147A1|2005-07-28|Moulding device for producing recipients made of a thermoplastic material
    EP3245052B1|2019-05-08|Drum for producing a tyre blank
    FR2548081A1|1985-01-04|PROCESS AND APPARATUS FOR MANUFACTURING TIRES
    LU83663A1|1982-02-18|IMPROVEMENTS IN PROCESSES AND DEVICES FOR THE MANUFACTURE OF TIRES
    EP2928677B1|2017-07-19|Tyre curing mould comprising movable sectors.
    EP0718090A1|1996-06-26|Tyre building drum
    EP1353790B1|2005-06-29|Tyre building drum
    EP2750869B1|2016-04-27|Tyre-building drum comprising mobile sectors
    EP3380312B1|2020-01-01|Drum and method for assembling a tyre adapter on a wheel rim
    EP3027402B1|2017-09-20|Tire building drum provided with retractable sectors
    EP3027401B1|2017-09-13|Tire building drum provided with movable sectors
    EP2804749B1|2016-06-22|Assembly drum for a green tyre having mobile elements
    WO2018215722A1|2018-11-29|Drum and method for assembling a tyre adapter on a rim
    FR2996493A1|2014-04-11|DEVICE FOR HANDLING A COMPONENT OF A PNEUMATIC ENVELOPE
    EP2655050B1|2016-04-27|Support equipped with movable elements for assembling a green tyre blank
    EP3458254B1|2021-07-07|Folding-up system for manufacturing green tires.
    EP1347874B1|2006-04-26|Assembly drum for manufacturing tyres
    FR3108556A1|2021-10-01|Drum for making a tire adapter on a rim
    EP2655051B1|2016-08-31|Cam support for assembling a green tyre
    WO2021019183A1|2021-02-04|Expandable drum for shaping pneumatic tyres that comprises a parallelogram-type expander device for retaining the bead wire
    同族专利:
    公开号 | 公开日
    WO2015132351A1|2015-09-11|
    US20170080657A1|2017-03-23|
    FR3018219B1|2016-04-15|
    CN106103065A|2016-11-09|
    EP3113939A1|2017-01-11|
    US10513086B2|2019-12-24|
    CN106103065B|2018-03-23|
    EP3113939B1|2018-05-02|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    US3778326A|1971-01-26|1973-12-11|G Gazuit|Tire-making drum|
    US4149927A|1978-03-24|1979-04-17|The General Tire & Rubber Company|Tire building apparatus with improved drum shoulder|
    FR2509663A1|1981-07-20|1983-01-21|Inst Oboru Dlya Shin|Tyre assembling drum with radially expanding segments - operated by simple lever mechanism and axially sliding blocks|
    US4780170A|1984-09-13|1988-10-25|The Uniroyal Goodrich Tire Company|Drum lifting device|
    US5047108A|1990-03-09|1991-09-10|Wyko, Inc.|Tire building drum for fabricating high profile type tire carcasses|
    WO2002053355A2|2000-12-29|2002-07-11|Societe De Technologie Michelin|Assembly drum for manufacturing tyres|
    DE1579257A1|1966-08-23|1970-08-27|Dunlop Ag|Building drum for pneumatic vehicle tires|
    US4425180A|1981-07-08|1984-01-10|Vsesojuzny Nauchno-Issledovatelsky I Konstruktorsky Institut Po Oborudovaniju Dlya Shinnoi Promyshlennosti|Tire casing assembly drum|
    JP3364280B2|1993-07-14|2003-01-08|株式会社ブリヂストン|Tire building drum and raw tire manufacturing method|
    ITTO20090191A1|2009-03-13|2010-09-14|Marangoni Meccanica|METHOD AND FORMING DRUM FOR TIRE CARCASSES|JP6332368B2|2016-09-06|2018-05-30|横浜ゴム株式会社|Pneumatic tire molding method and apparatus|
    NL2018566B1|2017-03-23|2018-10-03|Vmi Holland Bv|Tire building drum and method for operating said tire building drum|
    WO2019116292A1|2017-12-13|2019-06-20|Pirelli Tyre S.P.A.|Forming drum for building a tyre for vehicle wheels and method for checking the geometry of a forming drum in a process for building a tyre for vehicle wheels|
    CN109501345B|2018-12-30|2021-05-07|萨驰智能装备股份有限公司|Forming method of tire forming machine|
    法律状态:
    2015-03-19| PLFP| Fee payment|Year of fee payment: 2 |
    2016-03-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-03-22| PLFP| Fee payment|Year of fee payment: 4 |
    2018-03-23| PLFP| Fee payment|Year of fee payment: 5 |
    2019-11-29| ST| Notification of lapse|Effective date: 20191106 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1451866A|FR3018219B1|2014-03-07|2014-03-07|ASSEMBLY DRUM FOR THE MANUFACTURE OF TIRES|FR1451866A| FR3018219B1|2014-03-07|2014-03-07|ASSEMBLY DRUM FOR THE MANUFACTURE OF TIRES|
    EP15707971.6A| EP3113939B1|2014-03-07|2015-03-05|Assembly drum for manufacturing tyres|
    US15/123,541| US10513086B2|2014-03-07|2015-03-05|Tire building drum for the manufacture of tires|
    PCT/EP2015/054656| WO2015132351A1|2014-03-07|2015-03-05|Tyre building drum for the manufacture of tyres|
    CN201580012486.3A| CN106103065B|2014-03-07|2015-03-05|For manufacturing the tire assembly drum of tire|
    [返回顶部]