公开(公告)号：WO2020121107A1

公开(公告)日：2020-06-18

申请号：PCT/IB2019/060314

申请日：2019-11-29

Applicant: PIRELLI TYRE S.P.A.

Inventor： DORIA, Francesco ,  HELD, Alessandro ,  ROBERTI, Lorenzo

IPC: G01M17/02 ,  G01N27/20 ,  G01R1/073 ,  G01R27/14 ,  B60C19/00

Abstract: A device for checking the electrical conductivity of tyres for vehicle wheels comprises: a first electrode (17) configured for resting against a surface of a component of a tyre (2); a second electrode (18) configured for closing an electrical circuit with the component of the tyre (2); a meter (19) operatively connected to the first electrode (17) and to the second electrode (18). The meter (19) is configured for generating a voltage between the first electrode (17) and the second electrode (18) and obtaining an electrical resistance between them. The first electrode (17) has, at least when it is resting against the surface of the component, at least one contact portion (23) more yielding than the component and electrically conductive and configured for copying concavities of the aforementioned surface.

公开(公告)号：WO2016174543A1

公开(公告)日：2016-11-03

申请号：PCT/IB2016/052201

申请日：2016-04-18

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  MARCHINI, Maurizio ,  HELD, Alessandro ,  ANTOJ, Riccardo

IPC: G01M17/02

CPC classification number: G01M17/021 ,  G01M17/022 ,  G01M17/027

Abstract: The present invention relates to an apparatus and to a process for controlling tyres. The apparatus comprises at least one control station (27a, 27b) which comprises: a base (34); a rotating table (35) mounted on the base (34) so as to be able to rotate around a respective vertical rotation axis (Z); at least one control device (50) operatively active at the rotating table (35); a movement device (38) configured for rotating the rotating table (35) around the vertical rotation axis (Z). The rotating table (35) has a substantially horizontal abutment portion (36) configured for receiving and supporting a sidewall (11) of a tyre (2) to be controlled. The abutment portion (36) is movable in the horizontal plane according to two directions (x, y) with respect to the vertical rotation axis (Z) by means of an actuator (45, 46). A detection device (47) is configured for detecting a shift (S) between the vertical rotation axis (Z) and the main axis (X-X) of the tyre (2). An electronic management unit (48) operatively connected to the detection device (47) and to the actuator (45, 46) is configured for driving the actuator (45, 46) and moving the abutment portion (36) according to the two directions (x, y) as a function of the detected shift (S) in order to render such shift less than a pre-established value, so as to centre the tyre (2) with respect to the vertical rotation axis (Z) before executing the controls.

Abstract translation: 本发明涉及一种用于控制轮胎的装置和方法。 该装置包括至少一个控制站（27a，27b），其包括：基座（34）; 安装在所述基座（34）上以能够围绕相应的垂直旋转轴线（Z）旋转的旋转台​​（35）; 在所述旋转台（35）处可操作地操作的至少一个控制装置（50）; 移动装置（38），被配置为绕所述旋转台（35）围绕所述垂直旋转轴线（Z）旋转。 旋转台（35）具有基本上水平的邻接部分（36），其构造成用于接收和支撑待控制的轮胎（2）的侧壁（11）。 邻接部分（36）可通过致动器（45,46）相对于垂直旋转轴线（Z）沿水平面在两个方向（x，y）上移动。 检测装置（47）被构造成用于检测轮胎（2）的垂直旋转轴线（Z）和主轴线（X-X）之间的偏移量（S）。 可操作地连接到检测装置（47）和致动器（45,46）的电子管理单元（48）构造成用于驱动致动器（45,46），并根据两个方向移动邻接部分（36） x，y）作为检测到的换档（S）的函数，以便使这种移动小于预先建立的值，以便在执行轮胎（2）之前使轮胎（2）相对于垂直旋转轴线（Z）居中 控制。

公开(公告)号：WO2017115300A1

公开(公告)日：2017-07-06

申请号：PCT/IB2016/058052

申请日：2016-12-28

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo

IPC: G01M17/02 ,  G01B11/30 ,  G01N21/95

CPC classification number: G01M17/027 ,  G01B11/24 ,  G01N21/9515

Abstract: The present invention relates to an apparatus for checking a tyre, the apparatus comprising: a support adapted for receiving said tyre resting thereupon; a deformation system configured to form an elastically deformed portion of inner surface and an elastically deformed portion of outer surface on said tyre through physical contact; a first light source adapted for emitting a first light radiation to illuminate said deformed portion of outer surface with diffused light radiation and a first camera adapted for detecting a first image of said illuminated deformed portion of outer surface and for generating at least one control signal representative of said first detected image; a second light source adapted for emitting a second light radiation to illuminate said deformed portion of inner surface with grazing light radiation and a second camera adapted for detecting at least one second image of said illuminated deformed portion of inner surface and for generating at least one control signal representative of said at least one second detected image; a moving member adapted for setting said support in relative rotation with respect to said first light source, to said second light source and to said deformation system around a rotation axis of the tyre; and a processing unit configured so that while said first light source and said second light source illuminate said deformed portion of outer surface and said deformed portion of inner surface, said deformation system acts and said moving member imparts said relative rotation.

Abstract translation: 用于检查轮胎的设备技术领域本发明涉及一种用于检查轮胎的设备，所述设备包括：适于接收停靠在其上的所述轮胎的支撑件; 变形系统，所述变形系统构造成通过物理接触在所述轮胎上形成内表面的弹性变形部分和外表面的弹性变形部分; 第一光源，其适于发射第一光辐射以利用漫射光辐射照射所述外表面的所述变形部分;以及第一照相机，其适于检测所述照明变形部分的外表面的第一图像并且用于产生至少一个代表性的控制信号 所述第一检测图像的图像; 第二光源，其适于发射第二光辐射以利用掠射光辐射照射所述内表面的所述变形部分;以及第二照相机，其适于检测所述内表面的所述照亮变形部分的至少一个第二图像并且用于产生至少一个控制 代表所述至少一个第二检测图像的信号; 移动构件，所述移动构件适于将所述支撑件相对于所述第一光源相对旋转，围绕所述轮胎的旋转轴线设置到所述第二光源和所述变形系统; 以及处理单元，所述处理单元被配置成使得当所述第一光源和所述第二光源照射所述变形部分的外表面和所述变形部分的内表面时，所述变形系统起作用，并且所述移动构件施加所述相对旋转。

公开(公告)号：WO2017103872A1

公开(公告)日：2017-06-22

申请号：PCT/IB2016/057711

申请日：2016-12-16

Applicant: PIRELLI TYRE S.P.A.

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo ,  PECORARO, Daniele ,  BALLARDINI, Valeriano ,  ENGELSBERGER, Josef ,  LEITNER, Bernd

IPC: G01M17/02

CPC classification number: G01M17/027

Abstract: The present invention relates to a device (10) for checking a tyre (200), the device (10) comprising: a detection system (104) comprising a camera (105) having an optical plane (107) passing through the camera (105) and defining a focal plane (121); a first light source (110), a second light source (108) and a third light source (109) adapted for emitting a first light radiation, a second light radiation and a third light radiation, respectively to illuminate a surface portion of said tyre at or close to said focal plane (121), said second light source (108) and said third light source (109) being arranged at opposite sides with respect to said optical plane (107); where said first light source (110) is fixed with respect to said detection system (104) and said second light source (108) and third light source (109) are adapted to be movable from a first inactive configuration where they are controlled to not emit said second light radiation and third light radiation and wherein the distance (d2, d3) of said second light source (108) and of said third light source (109) from said focal plane (121) is greater than the distance (dl) of said first light source (110) from said focal plane (121) to an active configuration wherein they are adapted for emitting at least one among said second light radiation and said third light radiation and wherein the distance (d2, d3) of said second source (108) and of said third source (109) from said focal plane (121) is equal to or less than the distance (dl) of said first source (110) from said focal plane (121); and a drive and control unit (140) adapted for activating said detection system (104) to acquire a first image and at least a second image of a first surface portion and a second surface portion of said tyre (200) in said inactive configuration and in said active configuration, respectively.

Abstract translation: 本发明涉及一种用于检查轮胎（200）的装置（10），所述装置（10）包括：检测系统（104），其包括具有光学平面的照相机（105） 107）穿过照相机（105）并限定焦平面（121）; 第一光源（110），第二光源（108）和第三光源（109），所述第一光源适于分别发射第一光辐射，第二光辐射和第三光辐射以照射所述轮胎的表面部分 在所述焦平面（121）处或附近，所述第二光源（108）和所述第三光源（109）相对于所述光学平面（107）布置在相对侧; 其中所述第一光源（110）相对于所述检测系统（104）是固定的，并且所述第二光源（108）和第三光源（109）适于从它们被控制到不控制的第一不活动配置 发射所述第二光辐射和第三光辐射，并且其中所述第二光源（108）和所述第三光源（109）距所述焦平面（121）的距离（d2，d3）大于所述距离（d1） 将所述第一光源（110）从所述焦平面（121）移动到主动配置，其中它们适于发射所述第二光辐射和所述第三光辐射中的至少一个，并且其中所述第二光源（110）的距离（d2，d3） 所述第一光源（108）和来自所述焦平面（121）的所述第三光源（109）的距离等于或小于所述第一光源（110）距所述焦平面（121）的距离（d1）。 以及驱动和控制单元（140），其适于启动所述检测系统（104）以获取所述轮胎（200）的第一表面部分和第二表面部分的处于所述不活动构造的第一图像和至少第二图像，以及 在所述活动配置中。

公开(公告)号：WO2020129103A1

公开(公告)日：2020-06-25

申请号：PCT/IT2019/050270

申请日：2019-12-16

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  DE COL, Christian ,  HELD, Alessandro

IPC: G01M17/02

Abstract: Method for checking tyres, and relative station (100), comprising: - illuminating a first portion of outer surface by means of a first illumination system (6) with a first light source (11) turned on and a second light source (12) and third light source (13) in respective inactive positions more backward along said first optical axis (8) with respect to the first light source (11), and acquiring a first two-dimensional image by means of a camera exerting a compression force in order to elastically deform the first portion of surface; - illuminating a second portion of outer surface by means of the first light source (11), second light source (12) and third light source (13) in time sequence, with the second light source (12) and the third light source in the respective active position more advanced along the first optical axis (8), and more distal from the first optical axis, with respect to the first light source (11), and acquiring respective second two-dimensional images of the second portion of surface by means of the camera; - illuminating a third portion of outer surface by means of a second illumination system (7) almost telecentric with a second optical axis (9) which forms an angle with the first optical axis greater than or equal to 60° and less than or equal to 100°, with the first illumination system (6) turned off, and acquiring a third two-dimensional image of the third portion of outer surface by means of the camera (5).

公开(公告)号：WO2020129100A1

公开(公告)日：2020-06-25

申请号：PCT/IT2019/050259

申请日：2019-12-09

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  DE COL, Christian ,  HELD, Alessandro

IPC: G01N21/88 ,  G01B11/24 ,  G01N21/95 ,  G01N21/952 ,  G01N21/954 ,  B60C25/00 ,  B60C25/05

Abstract: Method, and relative station, for checking tyres by means an acquisition system (4) of three-dimensional images of a surface of a tyre, wherein the acquisition system (4) comprises a camera (5), a linear laser source (7), and a reflecting element (11) having a reflecting surface (12), wherein a first three-dimensional image of a portion of inner surface of the tyre is acquired with the reflecting element (11) in a first operating position in which the reflecting surface (12) crosses both the propagation axis (9) of the laser beam and the optical axis (6) of the camera and wherein a second three- dimensional image of a portion of outer surface of the tyre is acquired with the reflecting element (11) in a second operating position in which the reflecting surface (12) does not cross neither the propagation axis (9) nor the optical axis (6).

公开(公告)号：WO2017175099A1

公开(公告)日：2017-10-12

申请号：PCT/IB2017/051822

申请日：2017-03-30

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  REGOLI, Fabio ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01N21/95

Abstract: Apparatus (1) for checking tyres, comprising : a support frame (2); a flange (3); and an acquisition system (4) of three-dimensional images of a surface of a tyre, the acquisition system being mounted on the support frame and comprising : a matrix camera (5), a linear laser source (7), and a reflecting surface (12) which intersects the propagation axis (9) of the linear laser beam and the optical axis (6) of the matrix camera (5), wherein a first angle (50) formed between a first section (14) and a second section (31) of the optical axis (6) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse, and wherein a second angle (51) formed between a first section (16) and a second section (32) of the propagation axis (9) mutually symmetrical with respect to a normal to the reflecting surface in the respective point of incidence to the reflecting surface, is obtuse.

Abstract translation: 一种用于检查轮胎的设备（1），包括：支撑框架（2）;支撑框架 法兰（3）; 和轮胎表面的三维图像的采集系统（4），所述采集系统安装在所述支撑框架上并且包括：矩阵相机（5），线性激光源（7）和反射表面 （12），其与线性激光束的传播轴（9）和矩阵相机（5）的光轴（6）相交，其中第一部分（14）和第二部分 其特征在于，相对于反射面入射到反射面的相应入射点的法线相互对称的光轴（6）的第一角度（31）是钝角，并且其中在第一部分（16） ）和传播轴（9）的第二部分（32）相对于入射到反射表面的相应入射点处的反射表面的法线相互对称，是钝的。

公开(公告)号：WO2017109689A1

公开(公告)日：2017-06-29

申请号：PCT/IB2016/057812

申请日：2016-12-20

Applicant: PIRELLI TYRE S.P.A. ,  POLITECNICO DI TORINO

Inventor： HELD, Alessandro ,  BOFFA, Vincenzo ,  MONTRUCCHIO, Bartolomeo

IPC: G01M17/02 ,  G01B11/30 ,  G02B19/00

CPC classification number: G01M17/027 ,  G01B11/24 ,  G01N21/95 ,  G01N21/952

Abstract: Station (100) and respective method for checking tyres in a tyre production line, comprising an apparatus (1) comprising : - a support frame (2); - a flange (3) for attaching the support frame to a movement member (102); - an acquisition system (4) for acquiring digital images of a surface of the tyre (101) mounted on the support frame (2) and comprising : - a linear camera (5) having a first optical axis (7), an optical plane (15), a focal plane (6) and an objective line (16) belonging to the focal plane and to the optical plane, and - an illumination system (8) for illuminating the objective line (15) and comprising a light source (20) and an optical lens system (21) having a second optical axis (22), wherein the optical lens system (21) comprises a first converging lens (30) and a second converging lens (31), arranged on the side opposite the light source with respect to the first lens, wherein the light source, the first lens and the second lens are coaxial with the second optical axis (22), wherein the first lens (30) has a numerical aperture greater than or equal to 0.5 and where an aperture of the second lens is greater than an aperture of the first lens.

Abstract translation: （100）以及用于检查轮胎生产线中的轮胎的相应方法，所述方法包括装置（1），所述装置（1）包括：支撑框架（2）;支撑框架 - 用于将所述支撑框架附接到移动构件（102）的凸缘（3）; - 用于获取安装在所述支撑框架（2）上的所述轮胎（101）的表面的数字图像的采集系统（4），并且包括：线性摄像机（5），其具有第一光轴（7），光学平面 （15），属于所述焦平面和所述光学平面的焦平面（6）和目标线（16），以及 - 照明系统（8），用于照射所述目标线（15）并且包括光源 20）和具有第二光轴（22）的光学透镜系统（21），其中所述光学透镜系统（21）包括第一会聚透镜（30）和第二会聚透镜（31），所述第一会聚透镜 （30）具有大于或等于0.5的数值孔径，并且其中所述第一透镜（30）具有大于或等于0.5的数值孔径，并且其中所述第二透镜 其中第二透镜的光圈大于第一透镜的光圈。

公开(公告)号：WO2018122736A1

公开(公告)日：2018-07-05

申请号：PCT/IB2017/058427

申请日：2017-12-27

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  ANTOJ, Riccardo ,  HELD, Alessandro ,  BALLARDINI, Valeriano ,  CASADIO TOZZI, Giuseppe

IPC: G01M17/02

Abstract: A method for checking tyres, comprising: • a database associating tyre models with their three-dimensional profiles and a compression force, where constructing the database comprises for each tyre model: • i. providing said tyre model on a resting plane, wherein the tyre lies on one side, • ii. pushing the opposite side of the tyre to a predetermined height; • iii. repeating the measurement for a plurality of points on the tyre surface for at least an entire rotation of the tyre • iv. measuring a force exerted on each point • v. calculating a statistical value as a function of said force; • vi. associating said statistical value with said three-dimensional profile of tyre model in said database; • during checking a tyre: applying, to an outer surface of a tyre, said compression force equal to said statistical value as a function of said force according to said model that corresponds to said tyre to be checked as obtained from said database to detect a defect thereof.

公开(公告)号：WO2018015908A1

公开(公告)日：2018-01-25

申请号：PCT/IB2017/054376

申请日：2017-07-19

Applicant: PIRELLI TYRE S.P.A.

Inventor： BOFFA, Vincenzo ,  HELD, Alessandro ,  ANTOJ, Riccardo ,  MARCHINI, Maurizio ,  CASADIO TOZZI, Giuseppe ,  BALLARDINI, Valeriano

IPC: G01M17/02

Abstract: The present invention relates to a method for checking tyres, comprising : i. providing a tyre having a rotation axis on a support plane defining a rested lateral portion and a free lateral portion; ii. detecting at least one three-dimensional profile of a ring-shaped surface of said tyre with centre in said rotation axis of said tyre, said three-dimensional profile including a height of a plurality of points of said ring-shaped surface; iii. translating a tool towards said tyre arranged on the support plane so as to rest on a measurement surface, said measurement surface being a portion of said ring-shaped surface; iv. pushing said measurement surface by means of said tool so as to apply a tool pressing force on said measurement surface towards the support plane; v. setting said tyre in relative rotation with respect to said tool so that said tool is in successive contact with a plurality of different measurement surface, portions of said ring-shaped surface, angularly spaced, keeping the tool pressing force exerted by said tool on said measurement surfaces substantially constant along at least one complete rotation about said rotation axis; vi. measuring a height of said measurement surfaces at a plurality of relative angular positions between said tyre and said tool along said complete rotation during said pushing action; and vii. comparing said height of said measurement surfaces at a plurality of relative angular positions between said tyre and said tool with a height of a plurality of points of said three-dimensional profile of said ring-shaped surface at the same angular positions; and viii. determining whether said tyre has a defect based on said comparison. The invention also concerns an apparatus for checking tyres.

Abstract translation: 本发明涉及一种检查轮胎的方法，包括：i。 提供轮胎，所述轮胎在支撑平面上具有旋转轴线，所述支撑平面限定了休息的横向部分和自由横向部分; II。 以所述轮胎的所述旋转轴线为中心检测所述轮胎的环形表面的至少一个三维轮廓，所述三维轮廓包括所述环形表面的多个点的高度; III。 将工具朝向布置在支撑平面上的所述轮胎平移以便搁置在测量表面上，所述测量表面是所述环形表面的一部分; IV。 借助所述工具推动所述测量表面，以便将所述测量表面上的工具压力施加到所述支撑平面; v。相对于所述工具相对旋转地设置所述轮胎，使得所述工具与多个不同的测量表面连续接触，所述环形表面的角度间隔开的部分保持由所述工具施加的工具按压力 所述测量表面沿着围绕所述旋转轴线的至少一个完整旋转基本恒定; 六。 在所述推动动作期间沿着所述完整旋转在所述轮胎和所述工具之间的多个相对角位置处测量所述测量表面的高度; 和vii。 将在所述轮胎和所述工具之间的多个相对角位置处的所述测量表面的所述高度与所述环形表面的所述三维轮廓在所述相同角位置处的多个点的高度进行比较; 和viii。 基于所述比较确定所述轮胎是否具有缺陷。 本发明还涉及一种用于检查轮胎的设备。