• 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:
    The preparation drum (2) of a blank tire envelope comprises: - sectors (8) forming a circumferential face of the drum, - expansion means (40, 36, 28, 30, 32) adapted to moving the sectors radially so that, at any time, all the sectors extend at the same distance from the axis, and - adjustment means (12, 22) separate from the expansion means and able to to move the sectors radially so that, at any time, all sectors extend at the same distance from the axis. The expansion means are usable whatever the position of the sectors under the effect of the adjustment means.
    公开号:FR3031695A1
    申请号:FR1550379
    申请日:2015-01-16
    公开日:2016-07-22
    发明作者:Florent Monbrun；Helene Jaquet；Dominique Leblanc
    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 invention relates to drums for the manufacture of tire blanks. The assembly of the elements forming the tread of a wheel tire blank takes place on a manufacturing drum, also called "crown form". These elements mainly include raw gum. Once assembled, the tread is removed from the drum and deposited on a carcass made separately. The combination of the two forms a bandage. After forming the latter, we obtain the raw blank which is then baked for vulcanization of the gum.
    [0002] The circumferential face of the drum serving as support for the tread in progress is formed by radially movable sectors mounted. Thus, the retraction of all or part of the sectors makes it possible to extract the tread once its assembly is completed. A drum of this type is known, for example, from document EP-1 389 520. This drum has the advantage of ensuring good recovery of radial forces, in particular during the winding of a strip at high speed on the drum. to make the tread. However the adjustment of the diameter of the drum offers little choice for the positions of the sectors and is difficult to perform. In addition, once the diameter of the drum set, it is not possible to vary this diameter retaining the drum general shape. An object of the invention is to provide a drum which ensures a good recovery efforts while having a simple kinematics for the movement of the sectors and which offers more freedom for changes in drum diameter. For this purpose, according to the invention, there is provided a drum for making a blank of tire casing, which comprises: sectors forming a circumferential face of the drum; expansion means able to displace the sectors in question; radial direction relative to an axis of the drum so that, at any time during the displacement, all sectors extend at the same distance from the axis, and 30 - separate adjustment means of the expansion means and able to move the sectors radially so that, at any time during the movement by the adjustment means, all the sectors extend at the same distance from the axis, the expansion means being usable that is a position of the sectors 35 under the effect of the adjustment means. Thus, once the diameter of the drum chosen using the adjustment means, it is possible to vary this diameter while maintaining the drum its general configuration, for example to extract the tread drum. It is thus possible to perform repetitive movements of expansion and retraction of the drum while maintaining a precise adjustment of the diameter of the drum. Preferably, the expansion means and / or the adjustment means are able to move the sectors along a path perpendicular to the axis. Advantageously, the adjustment means are arranged in series with at least a portion of the expansion means. This is a way of ensuring that the expansion means are usable regardless of the position of the sectors determined by the adjustment means. In one embodiment, the adjustment means are arranged in series with only a part of the expansion means. Preferably, a part of the expansion means is arranged to occupy a fixed position in a radial direction with respect to the axis. This part of the expansion means can then be arranged in the vicinity of the axis of rotation of the drum, which reduces the inertia of the drum and generates an energy saving to drive it in rotation. In one embodiment, the adjustment means connect the expansion means to a support of the drum. Advantageously, the adjustment means form an irreversible mechanism. It is therefore not necessary to provide a member for holding these means in the chosen position. For example, the adjustment means comprise at least one cam mounted to rotate about the axis. It can be expected that the cams are at least two in number and connected to one another by at least one synchronization member distinct from the expansion means and the sectors. This arrangement makes it possible in particular to maintain two radial supports for each sector. In one embodiment, the expansion means comprise at least one jack and parts arranged to transform a biasing of the cylinder parallel to the axis into a radial bias. Preferably, the expansion means are arranged so that the pieces form at least one group in which axes of articulation of the members of the group extend in the same radial plane to the axis. Thus the stresses generated in the radial direction at the sectors during the constitution of the tread are transmitted to the support of the drum along the same radial direction without causing the appearance of an axial component. In this way a particularly strong radial support of the sectors is ensured. For example, the expansion means may comprise at least one upstream part, with reference to a direction of motion transmission in these means, capable of biasing a downstream part of the sliding-mounted expansion means against the upstream part. Preferably, the upstream portions are at least two in number and connected to one another by at least one synchronizing member separate from the adjusting means and sectors. In one embodiment, the expansion means comprise at least one upstream tray capable of biasing at least one support of the expansion means, slidably mounted against the plate. Preferably, the expansion means and the adjustment means are arranged such that each sector is connected to a drum support common to the sectors by means of the two supports independent of one another. Here again, it provides a particularly strong radial support sectors. Preferably, each sector is in one piece and / or rigid. It is also provided according to the invention a method of producing a tire blank in which at least a portion of the blank is made on a drum 20 according to the invention. We will now describe an embodiment of the drum according to the invention in support of the accompanying drawings in which: - Figures 1 and 2 are perspective views of a drum according to one embodiment of the invention, all the sectors being present in Figure 1 and only one sector being present in Figure 2; - Figures 3 to 6 are partial views in axial section of the drum of Figure 1 showing different configurations of the sectors; - Figure 7 is a view similar to Figure 3 showing the connecting means of the cams; Figure 8 is a perspective view of a portion of the drum at the cams; FIG. 9 is an enlarged view of a portion of the drum of FIG. 4, and FIG. 10 is a view on a larger scale of a portion of the drum of FIG. 2, similar to the latter. FIGS are illustrated a drum 2 according to one embodiment of the invention. This drum serves to assemble the tread forming elements for a green tire blank. The tire is intended for a vehicle wheel which may be a commercial vehicle, a light-type vehicle, a passenger vehicle, a heavy vehicle or a civil engineering machine. The drum comprises a central support or barrel 4 and has a generally symmetrical shape of axis revolution 6 which forms the main axis of the drum. In all the following, and unless otherwise indicated, the axial direction designates a direction parallel to the axis 65 and the radial direction designates any direction radial to the latter. The drum has outer sectors 8 which extend at the periphery of the drum to form the outer circumferential face 10 of the drum which forms the working face on which the elements of the blank are arranged. This face 10 has, in this case, a generally circular cylindrical shape in a plane 10 perpendicular to the axis 6. The drum thus forms here for example what a person skilled in the art often designates as a "flat shape" . In this case, sectors 8 are all identical to each other. They are in the present example numbering 24 but this number could vary. In this example, each sector is rigid and formed in one piece. It presents here a general shape in comb. Thus, the sector has a generally rectangular shape whose largest dimension is parallel to the axis 6. The two longitudinal edges of the rectangle are cut to form toothings so that each edge of a comb has teeth adapted to s' nested with the teeth of the edge of the adjacent comb. The sectors being movable in a direction perpendicular to the axis 6, this shape of the sectors 20 makes it possible to vary their distance with respect to the axis while ensuring a certain continuity of material between the combs according to the circumference of the drum, the teeth adjacent combs being more or less nested according to the radial position of the sectors. We will now present the organs that connect the sectors to the support 4 and 25 which ensure both their guidance and training. We will describe in detail the organs that are in the left part of the drum in Figures 3 to 6 knowing that the drum has in the right part similar members extending symmetrically to the first relative to a median plane of symmetry perpendicular to the axis 6. The drum comprises a cam 12 comprising an annular plate 30 having two faces perpendicular to the axis 6 and rotatably mounted around the latter coaxially. In FIG. 3, the cam extends in the left part of the drum and has on its right face 14, also visible in FIG. 8, a groove 16 in the form of a spiral centered on the axis 6. rotating the cam relative to the support 4 about the axis. The drum comprises a disc 18, also perpendicular to the axis 6 and centered on the latter, which comprises radial housings 20 visible in particular in Figure 8. Each of these housings receives a jaw 22 mounted to slide in the - 5 - housing relative to the disk in a direction perpendicular to the axis. The disk 18 being attached to the cam 12, each housing 20 is open towards the latter to allow the jaw to come into engagement with the spiral 16. For this purpose, the jaw has a toothing 24 complementary to the spiral. It also has a rear lower tab 26 extending in a direction opposite to that of the cam. Each jaw housing comprises high stops 101 and low 102 referenced in Figure 4 and defining the ends of sliding stroke of the jaw. The drum also comprises a rod support 28 and two straight rods 30 and 32, each hinged directly to the support. In addition, the rod 30 is hinged directly to the tongue 26. The two rods and the rod support form a toggle. For each sector, the drum also comprises a sector support 34. These supports are therefore also in this case 24 in number. The support has an elongated shape in a direction parallel to the axis 6 and has a left-hand part 15. base to which is directly articulated rod 32. All axes of articulation of the rods are parallel to each other and extend in a direction orthogonal to the axis 6 and non-secant with the latter. The axes of articulation of the rods to the rod support 28 extend in the same plane perpendicular to the axis 6. It is the same for the other two axes of articulation of the links respectively to the tongue 26 and the support sector 34. And these properties remain true regardless of the configuration of the drum that is to say regardless of the position of the sectors determined by the expansion means or the adjustment means as will be seen. As announced, the drum comprises in the right part in Figure 3 similar parts occupying a position symmetrical to those just presented. There is thus a cam 12, a disc 18 with jaws 22, a rod support 28, links 30 and 32 and another base of the same sector support 34. The sector 8 is rigidly fixed to the sector support 34 of so that the position of the latter completely determines the position of the sector. The drum further comprises two actuating platens 36 each also extending in a plane perpendicular to and centered on the axis. The trays are slidably mounted on the central support 4. Between the trays, out of the support 4, the drum comprises four actuators 40 in the form each of a pneumatic cylinder, comprising a body 42 and a piston 44. L The free end of the piston is connected to the left plate 36 while the end of the body opposite the piston is rigidly fixed to the right plate. The cylinders are housed inside the drum. The left face 45 of the left plate 36 opposite the jack forms a sliding track for the rod support 28. It is the same in the right part of the drum for the other plate and the other rod support. As illustrated in Figures 5, 6 and 10, the drum comprises a medial gear 60 rotatably mounted in the barrel 4 about a radial axis perpendicular to the axis 6. 5 This pinion is engaged with two respectively secured racks 62 the two actuating plates 36. This arrangement ensures a symmetrical displacement of these trays on either side of the median plane of the drum. Each rack is partially housed in a housing 67 of the opposite plate when the trays are in their closest configuration. Another rack and pinion assembly 10 is also provided, in a position diametrically opposed to the first. The drum also comprises three positioning discs 46 rigidly fixed to the support 4. In the left part of the drum, one of the discs 46 contributes to keeping cam 12 in position. Moreover, it extends away from the other disc 46 of the left to define with the latter a housing in which is slidably mounted in the direction perpendicular to the axis an arm 48 secured to the support 34 sector. In the right part of the drum, another arm 48 of the sector support is also slidably mounted in the direction perpendicular to the axis against a face of the third disk 46. The three positioning disks 46 and the two arms 48 thus provide radial guidance of the sector support during his move. Each sector support thus has its own pair of guide arms 48. Most parts of the drum are made of metal, for example some of aluminum and others of steel. Cylinders 40, trays 36, link supports and rods form expansion-retraction means of the drum. Thus, FIGS. 3 and 4 illustrate the drum in the respectively retracted and extended configurations. To move from the first to the second, the cylinders 40 are controlled, the elongation of which causes the trays 36 to move away from each other in the direction of the axis 6. Due to the pinion arrangement and Racks and the radial guide which is constrained each sector support 34, the mutual distance of the trays 36 is made symmetrically with respect to the median plane of the drum perpendicular to the axis 6. During the movement of the left plate, the corresponding rod support 28 slides on the track 45 in the radial direction away from the axis. Since the cam 12 and the jaws 22 are fixed with axial sliding, this causes the rod 30 to rotate about its lower axis and tilts the upper link 32. The rods thus transform an axial biasing of the cylinders into a radial bias. Similar displacements occur simultaneously in the right part of the drum. These movements cause the sliding of the sector support 34 and the sector 8 in the direction perpendicular to the axis 6. Knowing that all the sectors 8 are initially at the same distance from the axis, as shown in FIG. 1, the movement just described is identical and simultaneous for all the sectors so that, at any instant of the drum configuration change, all the sectors are at the same distance from the axis. The drum therefore retains its generally cylindrical shape during this radial expansion. This leads to the configuration of FIG. 4 in which the diameter of the drum measured at the outer face of the sectors is greater than that measured in the configuration of FIG. 3.The configuration of FIG. 4 corresponds to the end of the race. trays 10 for actuating 36, the trays 36 being in axial abutment against the discs 18. This stop frees the position of the rods and tie rod supports. In this position, the two links 30 and 32 in the left part of the drum have their four axes of articulation which this time extend in the same plane P1 perpendicular to the axis 6. And this same plane includes all the axes of articulation of the 15 links of the drum in the left part. It is the same for the rods of the right part of the drum with their own common plane P2. Under these conditions, a radial bias on the outer face of the sectors 8 is transmitted to the central support 4 also radially and without generating axial component. This ensures robust support for the sectors through the 4 and a good recovery efforts. Naturally, the actuation of the cylinders 40 in the opposite direction brings the trays 36 closer together and returns to the configuration of FIG. 3. These expansion means thus also form retraction means. On the other hand, the cams 12 and the jaws 22 form drum diameter adjustment means which can be used independently of the actuation of the expansion means. To actuate the adjustment means, assuming that one is in the configuration of Figure 3, it controls the rotation of the cams 12. These, in engagement with the jaws 22, cause the sliding of the latter following a direction perpendicular to the axis and opposite to the latter to arrive at a configuration of the type of that of Figure 5. During this movement, and assuming that the expansion means are inactive, the jaws of each sector in their sliding movement cause the two links with their support 28 as well as the sector support 34, the connecting rod support 28 sliding against the track 45. It has thus moved from the configuration of Figure 3 to that of Figure 5 under the effect of the adjustment means and without operating the expansion means. Here again, knowing that all the sectors 8 are initially at the same distance from the axis, as illustrated in FIG. 1, the movement just described is identical and simultaneous for all the sectors so that, at At any time of the drum diameter change, all sectors are at the same distance from the axis. The drum therefore retains its generally cylindrical shape during this change. Figures 3 and 5 correspond to the ends of the race cams and 5 jaws. It is the same in Figures 4 and 6. But we can quite choose a drum diameter adjustment that is intermediate between these two positions. Moreover, whatever the diameter chosen during this adjustment, one can then control the expansion means as before. This has been illustrated in FIGS. 5 and 6. On these, the adjustment means having determined a large diameter of the drum, the latter is passed from a retracted position to an extended position. The mechanism of this drum therefore allows to choose any position of the adjustment means and, in this position, to control the expansion means. Conversely, it allows to choose any position of the expansion means 15 and then to control the adjustment means to arrive at any other position. The smaller diameter of the drum is thus obtained when the adjusting means and the expansion means are each placed in the smaller diameter configuration. The same is true of the larger diameter configuration. It can be seen that the adjustment means connect the expansion means to the central support 4 of the drum. In addition, the adjustment means are arranged in series with only part of the expansion means, formed by the rods 30, 32 and their support 28. The other part of the expansion means, formed by the cylinders 40 and the actuating plates 36, is arranged to occupy a fixed position in a radial direction with respect to the axis. In the expansion means, the actuating plates 36 form an upstream part, with reference to a direction of transmission of the movement in these means, able to urge the support rods 28 of these expansion means. Finally, the expansion means and the adjustment means are arranged so that each sector 8 is connected to the shaft 4, common to the sectors, by means of two supports independent of one another. FIG. 7 illustrates a member for synchronizing the movement of the two cams, which comprises a rod 50 parallel to the axis 6 but remote from the support 4. This rod carries two pinions 52 rigidly fixed to the rod and each in meshing with a toothed sector of one of the cams 12. This same rod can be used to drive the cams in rotation by connecting the rod to a suitable motorization not shown. As illustrated in particular in FIG. 9, each actuating plate 36 has a flange adjacent to the barrel 4, directed towards the plate carrying the cam 12 and provided with an axial annular extension 66 fixed to the plate, for example by means of When the actuating plates 36 occupy their position farthest from each other, they are in axial abutment against the supports of the cams via these extensions 66 as illustrated in FIGS. 4 and 6. The correct sizing of these extensions, via their machining, for example, makes it possible to adjust the position of the aligned operating plates. It can be provided that the trays are aluminum while the extensions forming parts of the stop are made of steel. Referring to Figure 10, it is observed that each rack 62 is connected to the associated actuating plate 36 by means of a support piece 70. The latter is fixed to the plate by a screw 72. The rack has a notch in which penetrates a relief of the support piece 70 to ensure their solidarity in axial displacement. The rack is entirely held by interlocking in the support piece to avoid appearing constraints and generating a hyperstatism. The axial dimension of the support part is chosen, for example by machining, in order to adjust the axial position of the rack with respect to the associated plate. This choice also takes place by placing the drum in a configuration of the type of those of FIGS. 4 and 6. It is carried out so that the racks give the plates in axial abutment a position such that the axes of articulation of the left and right links straight lines are included in their respective planes P1 and P2. This drum is used for the production of a raw tire blank, for example the formation of a tread. Before making the latter, the diameter of the drum is chosen with the adjustment means, and then the expansion means are placed in the extended configuration.
    [0003] A tread is then formed by assembling different elements on the sectors while the drum is rotating. In particular, one or more longitudinally reinforced green rubber strips can be wound at high speed. This winding can take place with a relatively high tension of the strip, the recovery of forces being ensured within the drum as explained above. Once the tread is formed, it can operate the expansion means to pass the drum in retracted configuration to extract the tread. The drum is then returned to the extended configuration by controlling the expansion means, and a new tread is formed as before. If it is desired to constitute a tread of another tire model which has an internal diameter different from that of the preceding one, a new diameter is chosen on the drum with the adjustment means and this tread is formed. like before. The mechanism is sufficiently flexible and robust to operate the expansion means at a relatively high speed and a very large number of times in the same day, for example several tens or hundreds of times to manufacture as many treads. It will also be common to operate the adjustment means only a few times during the day when the model changes. This drum is sufficiently rigid in the extended position to accept significant radial forces without deformation of the laying surface. It is suitable for example to withstand a load of 120 daN per sector when it comes to manufacturing a tire envelope for a passenger vehicle. There is no deformation under the effect of a load, for example a cone or unwanted collapse at the median diameter. Knowing that the sectors are each associated with two supports, it ensures the resumption of efforts regardless of the location of the sector where the solicitation is exercised. This place may indeed vary along the axis 6 during the winding of a strip to perform the roughing. Of course, we can bring to the invention many changes without departing from the scope thereof.
    [0004] The drum may be used to make a portion of the blank other than the tread. The sectors can be given a curved shape or any other profile.
    权利要求:
    Claims (17)
    [0001]
    REVENDICATIONS1. Drum (2) for making a tire casing blank, characterized in that it comprises: sectors (8) forming a circumferential face of the drum, expansion means (40, 36, 28, 30, 32) adapted to move the sectors in a radial direction with respect to an axis (6) of the drum so that, at any time during the displacement, all the sectors extend at the same distance from the axis, and - adjustment means (12, 22) separate from the expansion means and able to move the sectors radially so that, at any time during the movement by the adjustment means, all sectors extend at the same distance from the axis, the expansion means being usable whatever the position of the sectors under the effect of the adjustment means. 15
    [0002]
    2. Drum according to the preceding claim wherein the expansion means and / or the adjusting means are adapted to move the sectors in a path perpendicular to the axis (6).
    [0003]
    Drum according to at least one of the preceding claims, wherein the adjusting means (12, 22) are arranged in series with at least a portion (28, 30, 32) of the expansion means.
    [0004]
    4. Drum according to at least one of the preceding claims wherein the adjusting means are arranged in series with a portion (28, 30, 32) only expansion means.
    [0005]
    A drum according to at least one of the preceding claims wherein a portion (40, 36) of the expansion means is arranged to occupy a fixed position radially in relation to the axis.
    [0006]
    6. Drum according to at least one of the preceding claims wherein the adjusting means (12, 22) connect the expansion means (28, 30, 32) to a support (4) of the drum. 30
    [0007]
    Drum according to at least one of the preceding claims, wherein the adjusting means (12, 22) form an irreversible mechanism.
    [0008]
    8. A drum according to at least one of the preceding claims wherein the adjusting means comprise at least one cam (12) mounted to rotate about the axis. 35
    [0009]
    9. Drum according to the preceding claim wherein the cams (12) are at least two in number and connected to one another by at least one synchronization member (50) separate from the expansion means and sectors.
    [0010]
    Drum according to at least one of the preceding claims, in which the expansion means comprise at least one jack (40) and parts (28, 30, 32) arranged to transform a biasing of the cylinder parallel to the axis. in a radial stress.
    [0011]
    11. Drum according to the preceding claim wherein the expansion means are arranged so that the parts (28, 30, 32) form at least one group in which axes of articulation of the group members extend in the same radial plane to the axis.
    [0012]
    Drum according to at least one of the preceding claims, in which the expansion means comprise at least one upstream part, with reference to a direction of motion transmission in these means, such as a plate (36), suitable for to bias a downstream portion of the expansion means, such as a support (28), slidably mounted against the upstream portion.
    [0013]
    13. Drum according to the preceding claim wherein the upstream portions (36) are at least two in number and connected to each other by at least one synchronizing member (60) separate adjustment means and sectors.
    [0014]
    A drum according to at least one of the preceding claims wherein the expansion means and the adjusting means are arranged so that each sector is connected to a drum support (4) common to the sectors by means of both supports independent of each other.
    [0015]
    A drum according to at least one of the preceding claims wherein each sector (8) is in one piece.
    [0016]
    16. A drum according to at least one of the preceding claims wherein each sector (8) is rigid.
    [0017]
    17. A method of producing a tire blank characterized in that at least a portion of the blank is made on a drum (2) according to at least one of the preceding claims.
    类似技术:
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    FR3061071A1|2018-06-29|DRIVING MODES OF A METHOD OF RETROUSSING A PNEUMATIC BRAKE
    同族专利:
    公开号 | 公开日
    FR3031695B1|2017-02-24|
    EP3245052B1|2019-05-08|
    EP3245052A1|2017-11-22|
    CN107107506B|2019-11-15|
    US20180272641A1|2018-09-27|
    WO2016113510A1|2016-07-21|
    US10421241B2|2019-09-24|
    CN107107506A|2017-08-29|
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    US8899292B2|2010-10-14|2014-12-02|Davian Enterprises, LLC|Fully supported expandable deck|
    US8585845B2|2010-11-10|2013-11-19|The Goodyear Tire & Rubber Company|Tire-forming apparatus and related methods|
    FR2969030B1|2010-12-20|2013-02-08|Michelin Soc Tech|ASSEMBLY MOUNT FOR RAW PNEUMATIC BRAKE WITH MOBILE ELEMENTS|
    NL2006181C2|2011-02-11|2012-08-14|Vmi Holland Bv|CONSTRUCTION DRUM WITH LOCKING DEVICE.|
    EP3003698A4|2013-06-07|2016-12-28|Davian Entpr Llc|Tire building drum with increased range of movement|
    FR3009233B1|2013-08-01|2016-01-01|Michelin & Cie|DRUM FOR TREATING A TREAD WITH MOBILE SECTORS|
    FR3009232B1|2013-08-01|2016-01-01|Michelin & Cie|TREATMENT PAD DRUM WITH RETRACTABLE SECTIONS|
    CN106132677A|2014-02-07|2016-11-16|达维阶企业有限责任公司|There is the inflatable drum of irregular section profile|
    ITUB20153038A1|2015-05-05|2017-02-10|Marangoni Mecc S P A|GROUP FOR TIRE FORMING|FR3059593A1|2016-12-07|2018-06-08|Compagnie Generale Des Etablissements Michelin|DRUM FOR MANUFACTURING BLANKET OR PNEUMATIC COMPONENT|
    CN109875320B|2019-02-28|2019-11-22|高秀铃|A kind of gorros showing stand|
    EP3825109A1|2019-11-22|2021-05-26|Marangoni Meccanica S.P.A.|Forming group with continuous radial and axial adjustment, for forming tyres|
    法律状态:
    2016-01-21| PLFP| Fee payment|Year of fee payment: 2 |
    2016-07-22| PLSC| Search report ready|Effective date: 20160722 |
    2017-01-20| PLFP| Fee payment|Year of fee payment: 3 |
    2018-01-19| PLFP| Fee payment|Year of fee payment: 4 |
    2019-09-27| ST| Notification of lapse|Effective date: 20190906 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1550379A|FR3031695B1|2015-01-16|2015-01-16|DRUM MAKING A PNEUMATIC BRAKE|FR1550379A| FR3031695B1|2015-01-16|2015-01-16|DRUM MAKING A PNEUMATIC BRAKE|
    US15/542,099| US10421241B2|2015-01-16|2016-01-15|Drum for producing a tire blank|
    EP16703573.2A| EP3245052B1|2015-01-16|2016-01-15|Drum for producing a tyre blank|
    CN201680005584.9A| CN107107506B|2015-01-16|2016-01-15|It is used to prepare the rotary drum of tire base|
    PCT/FR2016/050071| WO2016113510A1|2015-01-16|2016-01-15|Drum for producing a tyre blank|
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