WO2019188109A1 - Tire testing machine and tire marking method - Google Patents

Tire testing machine and tire marking method Download PDF

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Publication number
WO2019188109A1
WO2019188109A1 PCT/JP2019/009253 JP2019009253W WO2019188109A1 WO 2019188109 A1 WO2019188109 A1 WO 2019188109A1 JP 2019009253 W JP2019009253 W JP 2019009253W WO 2019188109 A1 WO2019188109 A1 WO 2019188109A1
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WO
WIPO (PCT)
Prior art keywords
tire
marking
mark
belt
conveyor
Prior art date
Application number
PCT/JP2019/009253
Other languages
French (fr)
Japanese (ja)
Inventor
敬志 住谷
優 住元
Original Assignee
株式会社神戸製鋼所
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2019037735A external-priority patent/JP2019174449A/en
Application filed by 株式会社神戸製鋼所 filed Critical 株式会社神戸製鋼所
Priority to US17/040,704 priority Critical patent/US20210010908A1/en
Priority to CN201980021197.8A priority patent/CN111902709A/en
Priority to KR1020207030566A priority patent/KR20200134300A/en
Publication of WO2019188109A1 publication Critical patent/WO2019188109A1/en

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B60—VEHICLES IN GENERAL
    • B60C—VEHICLE TYRES; TYRE INFLATION; TYRE CHANGING; CONNECTING VALVES TO INFLATABLE ELASTIC BODIES IN GENERAL; DEVICES OR ARRANGEMENTS RELATED TO TYRES
    • B60C19/00—Tyre parts or constructions not otherwise provided for
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M17/00—Testing of vehicles
    • G01M17/007—Wheeled or endless-tracked vehicles
    • G01M17/02—Tyres

Definitions

  • the present invention relates to a technique related to a tire testing machine, and particularly to a method for marking a tire test result on a tire.
  • Patent Document 1 a tire testing machine capable of testing a plurality of tires having different inner peripheral diameters or tread surface widths.
  • a mark indicating the result of the tire test is marked on the sidewall surface of the tire by a marking device. Examples of the mark include a high point mark and a grade mark.
  • the high point mark indicates the portion of the tire corresponding to the maximum value of the primary waveform of the force variation, that is, the hardest portion of the tread surface.
  • the high point mark is stamped on a portion corresponding to the maximum value (phase where the maximum value is detected) on the sidewall surface of the tire.
  • the grade mark indicates the grade of the tire.
  • the tire grade (tire grade) is determined in accordance with various measurement items set in advance and the measurement results.
  • a plurality of grades are set in advance, and a plurality of grade marks respectively corresponding to the plurality of grades are set in advance.
  • Each grade mark is indicated by a combination of a preset mark shape, color, number, and the like.
  • the grade mark is also stamped on the sidewall surface of the tire.
  • the grade mark is stamped at a position close to the high point mark, but it may be stamped at any position on the sidewall surface.
  • a mark combining high point and grade may be marked.
  • each mark there are a method of printing using a thermal transfer tape, a method of printing using ink, and the like.
  • Each mark is marked on a portion of the sidewall surface of the tire where it is difficult for the mark to be chipped.
  • the marking device includes a method for marking a tire with the tire mounted on a spindle and a method for marking a tire that is removed from the spindle and placed on a conveyor.
  • the marking device is provided with a mechanism for finely adjusting the marking position on the sidewall surface of the tire in the radial direction, and the mechanism can adjust the marking position to an arbitrary radial position.
  • roller conveyor type transport rollers that have been used for transporting conventional tires have problems such as the tire rotating and moving in phase due to the vibration of the transport rollers. It is difficult to mark the tire accurately.
  • the present invention provides a tire testing machine capable of shortening the cycle time of a tire test and a method for marking a tire using the tire testing machine while marking a tire test result at an accurate position on the tire. For the purpose.
  • the tire testing machine is a loop belt that forms an endless track, which is a transport belt for transporting a tire that has been subjected to a tire test and removed from a spindle unit to the downstream side in the transport direction.
  • a belt conveyor having a transport belt; a drive mechanism that drives the transport belt; and a drive mechanism that operates the drive section to control a transport position of the transport belt; and the tire on the transport belt
  • a marking device including a second marking mechanism for marking a second mark indicating a second mark using a second stamping method different from the first stamping method. That.
  • 1 is a plan view of a tire testing machine according to an embodiment of the present invention.
  • 1 is a front view of a tire testing machine according to an embodiment of the present invention. It is the side view which looked at the tire testing machine concerning the embodiment of the present invention from the entrance side. It is the top view which showed the outline of the marking part in the said tire testing machine. It is the front view which showed the outline of the marking part in the said tire testing machine. It is the top view which showed typically the whole structure of the said tire testing machine.
  • the length of the conveyance path F of the tire T in the conveyance direction of the tire T corresponds to the total length of the tire testing machine 1.
  • the horizontal direction intersecting with the conveyance path F, more precisely, the horizontal direction substantially orthogonal to the conveyance path F corresponds to the depth direction of the tire testing machine 1.
  • the depth direction is also referred to as the left-right direction or the width direction of the tire testing machine 1.
  • the tire testing machine 1 includes a lubrication unit 2, a tire testing unit 3, and a marking unit 4.
  • the lubrication part 2 applies lubrication liquid to the bead part B of the tire T while rotating the tire T.
  • the tire test unit 3 detects a singular point existing in the tire T by performing a tire test while rotating the tire T to which the lubrication liquid is applied in the lubrication unit 2 on a spindle unit.
  • the marking unit 4 marks the tire T at a circumferential position where the singular point exists.
  • the lubrication part 2, the tire test part 3 and the marking part 4 are arranged in that order along the transport path F from the upstream side toward the downstream side.
  • the lubrication unit 2 includes a pair of left and right first conveyors 5 that conveys the tire T in a posture in which the tire T lies horizontally, and a pair of left and right tires that are carried by the pair of first conveyors 5. And an application part 7 for applying a lubrication liquid to the bead part B (inner peripheral edge) of the tire T held by the pair of arm parts 6.
  • each of the first conveyors 5 is a belt conveyor having a conveyor belt that is a loop-shaped belt forming an endless track, but the first conveyor 5 is not limited to the belt conveyor system. Absent.
  • Rotating rollers 8 are rotatably provided at the respective tips of the pair of arm portions 6.
  • the pair of arm units 6 sandwich the conveyed tire T from the left and right outer sides, and bring the rotating roller 8 into contact with a tread surface that is an outer peripheral surface of the tire T.
  • the rotating roller 8 rotates so as to allow the tire T to rotate about an axis that faces in the vertical direction.
  • the application unit 7 is configured to be movable in the vertical direction.
  • the application part 7 has a brush shape and rises to a position where it comes into contact with the bead part B of the tire T held by the pair of arm parts 6 to apply the lubrication liquid to the bead part B.
  • the application unit 7 is returned to the position below the first conveyor 5 after application and stored.
  • the pair of first conveyors 5 conveys the tire T to which the lubrication liquid has been applied from the lubrication unit 2 to the tire test unit 3.
  • the tire test unit 3 includes a spindle unit 9, a drum 10, a pair of left and right second conveyors 11, a rim table 13, and a rim replacement mechanism 16.
  • the spindle unit 9 holds the tire T so as to allow the tire T to rotate about an axis that is directed in the vertical direction.
  • the drum 10 has a cylindrical outer peripheral surface having a central axis facing in the vertical direction, and is disposed on the side of the spindle unit 9 so as to be rotatable around the central axis.
  • the pair of second conveyors 11 conveys the tire T conveyed from the lubrication unit 2 in a horizontally lying posture.
  • the rim table 13 has a horizontal rim mounting surface on which a plurality of rims 12 can be mounted.
  • the rim replacement mechanism 16 replaces the rim 12 attached to the spindle unit 9 (specifically, an upper spindle 9a and a lower spindle 9b described later) with another rim.
  • each of the pair of second conveyors 11 includes an upstream conveyor 11a and a downstream conveyor 11b disposed on the downstream side of the upstream conveyor 11a in the transport direction.
  • Each of the upstream and downstream conveyors 11a and 11b is a belt conveyor having a conveyor belt that is a loop-shaped belt that forms an endless track.
  • the tire test unit 3 further includes a rotation drive unit (not shown) that drives the spindle unit 9 to rotate.
  • the tire testing machine 1 further includes a grinder 23.
  • the grinder 23 cuts a shoulder portion that is a boundary portion between the tread surface and the sidewall surface of the tire T.
  • the grinder 23 is provided on the exit side of the tire test unit 3. Thus, the tire T is adjusted so as to fall within the allowable value in the tire test.
  • the spindle unit 9 holds the tire T via the rim 12 so as to allow the tire T to rotate about an axis that is directed in the vertical direction.
  • the spindle unit 9 has a structure that is divided into an upper spindle 9a and a lower spindle 9b.
  • Each of the upper spindle 9a and the lower spindle 9b is a rod-like member that can rotate around a common axis that faces in the vertical direction.
  • Each of the plurality of rims 12 includes an upper rim 12a attached to the lower end portion of the upper spindle 9a and a lower rim 12b attached to the upper end portion of the lower spindle 9b.
  • the upper rim 12a and the lower rim 12b are arranged so that the tire T on the pair of second conveyors 11 can be sandwiched in the vertical direction.
  • Each rim 12 has a structure that is divided into an upper rim 12a and a lower rim 12b.
  • the rim table 13 is provided in the vicinity of the lower spindle 9b.
  • the rim table 13 can be mounted with a rim 12 in which an upper rim 12a and a lower rim 12b are stacked.
  • the rim table 13 is made of a disk-shaped plate material, and is rotatable around an axial center that faces in the vertical direction. It is arranged to be located in.
  • the rim table 13 includes a plurality of rims 12 having different sizes (an upper rim 12a and a lower rim 12b) that can be attached to the upper spindle 9a and the lower spindle 9b at a plurality of positions arranged in the rotational circumferential direction on the rim mounting surface. Can be mounted).
  • the rim table 13 is a rotary table system, and it is possible to mount four rims 12 having different sizes and arranged in the rotational circumferential direction.
  • the drum 10 is arranged so that the outer peripheral surface of the drum 10 can come into contact with and separate from the tread surface of the tire T held by the spindle unit 9 in the radial direction of the tire T. It is arranged in the vicinity.
  • the test of the tire T is performed by rotating the tire T at a predetermined rotation speed in a state where the outer peripheral surface of the drum 10 is in contact with the tread surface of the tire T held by the spindle unit 9.
  • the drum 10 has a rotating shaft, and a load cell (not shown) for measuring a force or moment applied to the drum 10 from the rotating tire T is attached to the rotating shaft.
  • the tire uniformity is calculated based on the result measured by the load cell, and the circumferential position and the axial position where the repulsive force of the tire T is maximized are measured as “singular points”.
  • the tire test performed in the tire test unit 3 includes not only the measurement of the tire uniformity described above but also the measurement of the outer shape.
  • the tire T on which the “singular point” is measured is rotated by a predetermined angle corresponding to the marking position at the “singular point” in the tire test unit 3 and then sent from the tire test unit 3 to the marking unit 4. .
  • the marking unit 4 is provided with a mark such as a uniformity mark indicating the “singularity” specified in the tire test. Is given to the circumferential direction position of the tire T.
  • a mark other than the uniformity mark may be given to the tire T.
  • the marking unit 4 includes a pair of left and right third belt conveyors 14, a drive mechanism 60, and a marking device 15.
  • the marking device 15 has a plurality of marks indicating the results of the tire test with respect to a predetermined position of the tire T positioned on the pair of third belt conveyors 14 (for example, a predetermined position on the inner peripheral side of the tire T). Apply.
  • the drive mechanism 60 drives the pair of third belt conveyors 14.
  • the pair of third belt conveyors 14 includes a conveyance belt 14A that carries a tire T that has been removed from the spindle unit 9 after a tire test and conveys the tire T to the downstream side in the conveyance direction.
  • the pair of third belt conveyors 14 conveys the tire T to the downstream side in the conveyance direction with the tire T lying horizontally.
  • the conveyor belt 14A in each of the pair of third belt conveyors 14 is a loop-shaped belt that forms an endless track.
  • the pair of third belt conveyors 14 is a belt conveyor system.
  • the drive mechanism 60 is a mechanism for precisely controlling the transport position of each transport belt 14A of the pair of third belt conveyors 14.
  • the drive mechanism 60 includes a servomotor 60A (an example of a drive unit) and a control unit 60B.
  • the servo motor 60A drives the transport belt 14A.
  • the controller 60B operates the servo motor 60A so as to control the transport position of the transport belt 14A.
  • the control unit 60B is configured by a microcomputer, for example.
  • the marking device 15 includes a plurality of marking mechanisms having different stamping methods.
  • the plurality of marking mechanisms include a first marking mechanism 61 and a second marking mechanism 62.
  • the first marking mechanism 61 uses a first stamping method to stamp a first mark indicating a result of the tire test on the tire T placed on the transport belt 14A. 1 marking device 61A.
  • the second marking mechanism 62 uses a second stamping method to stamp a second mark indicating a result of the tire test on the tire T placed on the transport belt 14A. 2 marking device 62A.
  • the second stamping method is different from the first stamping method.
  • the first marking mechanism 61 is a high point marking mechanism that stamps a high point mark on the surface of the tire T using a thermal transfer method
  • the second marking mechanism 62 is a grade mark. Is a grade marking mechanism that stamps on the surface of the tire T using an ink stamp method.
  • the first marking device 61A includes, for example, a marking head having marking pins and a thermal transfer tape against which the marking pins are pressed.
  • the second marking device 62A includes, for example, a plurality of marking pins and at least one ink pan for containing ink.
  • the plurality of marking pins are arranged such that respective tip portions of the plurality of marking pins are immersed in the ink in the ink pan.
  • the ink pan moves away from the tip of each of the plurality of marking pins and moves to a position that does not interfere with the movement of the plurality of marking pins. To do. After that, any marking pin among the plurality of marking pins moves toward the tire T and comes into contact with the tire T to perform marking.
  • the marking method of the tire T in the marking unit 4 is performed in the order of steps (a) to (d) shown below.
  • the controller 60B of the drive mechanism 60 is placed on the conveyor belt 14A by operating the servo motor 60A to control the conveyance position of the conveyor belt 14A of each of the pair of third belt conveyors 14.
  • the tire T is moved to a predetermined position on the third belt conveyor 14 (first tire position P1 shown in FIG. 5).
  • the first tire position P1 is the position of the tire on the pair of the conveyor belts 14A, and the high point is located at the first marking position on the sidewall surface of the tire T for marking the high point mark. This is the position of the tire T where the marking mechanism 61 can stamp the high point mark.
  • the first tire position P ⁇ b> 1 is a position where the sidewall surface of the tire T is disposed directly below the high point marking mechanism 61.
  • the phase of the singular point of the tire T (the circumferential position in the tire T) is the pin (first marking device) of the high point marking mechanism 61 on the sidewall surface of the tire T.
  • the arrangement of the tire T in the circumferential direction is adjusted in advance in a state where the tire T is held by the spindle unit 9 so as to coincide with the phase at the time of stamping.
  • the tire testing machine 1 includes a storage unit configured by a memory or the like, and the storage unit stores various information for the tire test.
  • the various information relates to, for example, information on the diameter and rim size of the tire T that is a subject of the tire test, test conditions for performing the tire test, and a position for applying a mark indicating the tire test result to the tire T. Includes location information.
  • the position information includes information on the radial position on the sidewall surface of the tire T to which the mark is applied. The radial position is set in advance for each type of tire T at a position where the mark is unlikely to occur on the sidewall surface.
  • various designs and character strings are applied to the sidewall surface of the tire T, and the sizes and positions of these designs and character strings vary depending on the type of the tire T.
  • the mark marked on the sidewall surface of the tire T by the marking device 15 overlaps the design or character string, the mark is missing. Accordingly, the radial position is determined in accordance with the type of the tire T at a position where the design or character string is not applied.
  • a high point (the hardest part in the tire T) as the singular point is detected.
  • the tire test unit 3 is held by the spindle unit 9 so that the phase of the high point in the tire T matches the phase when the pin of the high point marking mechanism 61 is engraved on the sidewall surface of the tire T.
  • the tire T is rotated. Thereafter, the tire T is transferred from the spindle unit 9 to the second conveyor 11, and is transferred from the second conveyor 11 to the third belt conveyor 14 (exit side conveyor).
  • the radial position and the marking angle are registered in advance in the tire testing machine 1 for each type of the tire T to be tested.
  • the marking angle refers to the following angle.
  • the marking pin can be pressed as vertically as possible to the marking site on the sidewall surface in order to perform clean marking without chipping.
  • the tire testing machine 1 has an angle adjustment mechanism, and the angle adjustment mechanism can adjust the entire marking head including the marking pin to an arbitrary angle according to the tire type and the radial position.
  • the angle of the marking head adjusted by the angle adjusting mechanism is a marking angle.
  • the grade marking is a discrimination mark used for the purpose of, for example, selecting the tire T in the office, and is erased before the tire T is shipped. Therefore, the position of the grade marking is not required to be an exact position (accurate position).
  • the grade marking position is set in advance at a position where the phase difference is near 0 ° with respect to the high point position or a position where the phase difference is near 180 °.
  • the grade marking mechanism 62 has a fine adjustment function for preventing the grade mark by the grade marking mechanism 62 from overlapping the high point mark. Is provided. The fine adjustment function can shift the position of the grade mark with respect to the high point mark.
  • the grade marking position is a fixed position when the arrangement of the marking portion 4 is determined in the design stage of the tire testing machine 1.
  • the tire testing machine 1 may be configured such that the position of the grade marking can be changed according to the type of the tire T, for example.
  • the tire T on which the tire test has been performed maintains the phase adjusted in the tire test unit 3 (the phase for the high point mark to be stamped first) while maintaining the pair of second belt conveyors 11. Is conveyed to the marking unit 4.
  • the pair of third belt conveyors 14 moves the tested tire T to the first tire position P1 for high point marking.
  • the first tire position P1 is provided closer to the entrance side in the marking portion 4 than the second tire position P2.
  • the controller 60B of the drive mechanism 60 matches the first marking device 61A of the thermal transfer type high point marking mechanism 61 with the determined high point marking position (first marking position) in the tire T.
  • the transport position of the transport belt 14A of the pair of third belt conveyors 14 is adjusted.
  • the high-point marking mechanism 61 of the thermal transfer method (an example of the first stamping method) is tested.
  • the first marking that is, the high point marking is applied to the first marking position on the sidewall surface of the tire T that has been implemented.
  • the control unit 60B of the drive mechanism 60 operates the servo motor 60A to control the transport position of the transport belt 14A of the pair of third belt conveyors 14, thereby the pair of third belt conveyors.
  • the tire T is moved to the second tire position P2 on the 14 conveying belts 14A.
  • the second tire position P2 is a position different from the first tire position P1.
  • the second tire position P2 is the grade marking mechanism 62 (second marking mechanism) at a second marking position on the sidewall surface of the tire T for marking the grade mark (second mark). Is the position of the tire T where the grade mark can be stamped.
  • the second tire position P2 is a position away from the first tire position P1 by a predetermined distance downstream in the transport direction.
  • the pair of third belt conveyors 14 moves the marked tire T more than the first tire position P1. It moves to the 2nd tire position P2 for giving grade marking which is a downstream position.
  • the second tire position P2 is provided on the exit side of the marking portion 4 with respect to the first tire position P1.
  • the control unit 60B of the drive mechanism 60 matches the second marking device 62A of the grade marking mechanism 62 of the ink stamp type with the marking position (second marking position) of the determined grade in the tire T. By operating the servo motor 60A, the transport position of the transport belt 14A of the pair of third belt conveyors 14 is adjusted.
  • an ink stamp method (second stamping method of the second stamping method) is different from the thermal transfer method.
  • the example grade marking mechanism 62 applies a second marking, that is, a grade marking, to the second marking position on the sidewall surface of the tire T on which the test has been performed.
  • the transport position of the transport belt 14A of the pair of third conveyors 14 is controlled on one transport path F.
  • Two or more different stamping methods are used at a plurality of locations (for example, two locations) at a predetermined distance in the transport direction, and a plurality of marks indicating the results of the tire test are stamped on the tire T.
  • the thermal transfer type high point marking mechanism 61 stamps a high point mark on the tire T
  • the first 3 conveyer 14 moves the tire T from the first tire position P1 to the second tire position P2
  • the ink stamp type marking mechanism 62 imprints a grade mark on the tire T.
  • the transport position of the transport belt 14A of the pair of third belt conveyors 14 is controlled by a servo motor 60A of the drive mechanism 60 and the control unit 60B.
  • the pair of third belt conveyors 15 is configured by a belt conveyor, when the tire T is transported, the surface on which the tire T is placed, that is, the above-described surface.
  • the tire T is less likely to slip with respect to the surface of the conveyor belt 14A, and the tire T is less likely to slip even during marking.
  • tire vibration is likely to occur when the tire is conveyed.
  • the third belt conveyor 14 of the belt conveyor system in the tire testing machine 1 according to the embodiment when the tire T is conveyed, the vibration of the tire hardly occurs and the deviation of the marking position hardly occurs. .
  • the third belt conveyor 14 is constituted by a belt conveyor, the rotation of the tire T carried on the conveyor belt 14A is suppressed. Specifically, it is as follows.
  • the conventional roller conveyor includes a plurality of rollers that are rotatable about a horizontal axis orthogonal to the tire conveyance direction and arranged in the conveyance direction at intervals in the conveyance direction.
  • the plurality of rollers rotate to convey the tire placed thereon. Since this roller conveyor has a structure in which a plurality of rollers arranged at intervals in the conveying direction supports the tire T, the tire T and the plurality of rollers are not in continuous contact, Contact intermittently.
  • the tire T is continuously in contact with the conveyor belt 14 ⁇ / b> A extending in a strip shape along the conveyance direction.
  • a mechanism (position adjustment mechanism) for adjusting the position in the tire conveyance direction is separately provided to adjust the radial position of the tire on the roller conveyor to an accurate position. I need it. Further, when the roller conveyor is used, the arrangement (phase position) of the tires in the circumferential direction cannot be accurately adjusted, and some variation occurs in the phase position. Therefore, when the roller conveyor is used, marking is performed on the tire in a state where the phase position varies.
  • the slippage of the tire T is less likely to occur as compared with the roller conveyor, so that the drive mechanism 60 is used for the third conveyor 14.
  • the transport position (transport amount) of the transport belt 14A By precisely controlling the transport position (transport amount) of the transport belt 14A, the relative position of the tire T with respect to the marking device 15, specifically, the radial position of the tire T and the arrangement of the tire T in the circumferential direction (Phase position) can be precisely controlled.
  • the position adjusting mechanism in the tire transport direction when using the roller conveyor includes, for example, a positioning stopper.
  • the positioning stopper is configured to be movable between a blocking position that prevents movement of the tire in the conveyance direction and an allowable position that allows movement of the tire in the conveyance direction.
  • the position adjusting mechanism as described above is required. This is due to the fact that the above-described slip is likely to occur and that the marking position on the sidewall surface of the tire also changes as the tire size changes. That is, the marking position is a position on the sidewall surface that is separated from the outer peripheral position by a predetermined dimension radially inward, and the predetermined dimension varies depending on the tire size. In the method using the roller conveyor, it is necessary to accurately determine the position of the tire using the position adjusting mechanism as described above.
  • the drive mechanism 60 precisely controls the conveyance position (conveyance amount) of the conveyance belt 14A of the third conveyor 14, so that the relative position between the marking device 15 and the position where the tire T is to be marked is always set.
  • the tire T can be stopped so as to be the same.
  • the marking mechanism 4 does not require the position adjustment mechanism as described above.
  • the servo motor 60A and the control unit 60B that controls the servo motor 60A can precisely adjust the transport position of the transport belt 14A of the third belt conveyor 14 of the belt conveyor system. ) Can be controlled accurately and freely. This makes it possible to mark the exact position with respect to the tire T.
  • the marking position of the grade marking may be the same phase as the marking position of the high point marking, for example, a phase where the phase difference is 180 °.
  • the high point marking mechanism 61 does not require a positioning mechanism (centering mechanism) in the radial direction of the tire T.
  • the grade marking mechanism 62 also does not require a tire positioning stopper (the above-described position adjusting mechanism) or a function for finely adjusting the tire position. This makes it possible to simplify the tire testing machine 1. Thereby, the work load applied at the time of maintenance of the tire testing machine 1 is greatly reduced.
  • the tire T held by the spindle unit 9 is not subjected to the high point marking, but both the high point marking and the grade marking are the third point. It is applied to the tire T held on the conveyor belt 14A of the belt conveyor 14. This makes it possible to shorten the cycle time in the tire test. That is, the performance of the apparatus in terms of shortening the cycle time can be improved.
  • the high point marking mechanism and the grade marking mechanism have a certain size. Therefore, if the high point mark and the grade mark are applied to the tire at substantially the same position in the transport direction, a retracting mechanism for preventing the high point marking mechanism and the grade marking mechanism from contacting each other is provided. It is necessary to provide the marking mechanism. This complicates the equipment configuration of the tire testing machine.
  • the first marking mechanism 61 includes a first marking device that stamps the first mark on the tire T, and the second marking mechanism 62 is provided on the tire.
  • a second marking device for stamping the second mark is provided.
  • the position of the second marking device when the second marking device stamps the second mark on the tire T is determined by the first marking device relative to the tire T. This is a position spaced a predetermined distance in the transport direction from the position of the first marking device when marking the mark.
  • the predetermined distance is a distance at which the first marking device and the second marking device do not contact each other.
  • the first stamping method is the thermal transfer method and the second stamping method is the ink stamp method is exemplified, but the first stamping method and the second stamping method are exemplified. Is not limited to the above-described embodiment as long as it is a different stamping method, and other stamping methods may be used.
  • Employing different stamping methods has the following advantages. For example, it is possible to make the erasure characteristic of the mark stamped by the first stamping method different from the erase characteristic of the mark stamped by the second stamping method. Specifically, a method that makes it difficult to erase the mark can be employed as one of the stamping methods, and a method that can easily erase the mark can be employed as the other stamping method.
  • the first stamping method may be a thermal transfer method
  • the second stamping method may be another stamping method such as an ink stamp method.
  • the first marking method is the thermal transfer method, so that the first mark stamped by the thermal transfer method is used for marking by the second stamping method. Even when an external force such as a part of the apparatus rubbing acts on the first mark, it is possible to suppress the peeling of the first mark.
  • the first mark is a high point mark and the second mark is a grade mark
  • the first mark and the second mark are not limited to the above embodiment.
  • Other marks may be used.
  • the first mark may be a high point mark and the second mark may be another mark such as a grade mark.
  • the high point mark is required to have a higher marking position accuracy than other marks. Therefore, by carrying the high point mark by the first marking mechanism on the tire before the marking by the second marking mechanism, the conveyance distance and the conveyance time of the tire until the high point mark is applied are shortened as much as possible. can do. This can prevent as much as possible an accidental shift of the marking position during conveyance of the tire to the first marking mechanism.
  • a tire testing machine capable of providing a mark indicating the result of the tire test at an accurate position in the tire and reducing the cycle time of the tire test, and a tire marking method using the tire testing machine are provided. Is done.
  • a tire testing machine which is a transport belt for transporting a tire that has been subjected to a tire test and removed from a spindle unit to the downstream side in the transport direction, and has a loop shape that forms an endless track.
  • a belt conveyor having a conveyor belt as a belt, a drive mechanism having a drive section for driving the conveyor belt, and a controller for operating the drive section to control the transport position of the conveyor belt; and the conveyor belt
  • a marking device including a second marking mechanism for stamping a second mark indicating a result of a tire test by using a second stamping method different from the first stamping method.
  • the marking device of the tire testing machine is a tire that has been removed from the spindle after the tire test has been performed, and applies both the first mark and the second mark to the tire on the conveyor belt. This makes it possible to shorten the cycle time of the tire test as compared with the case where the mark is applied to the tire mounted on the spindle.
  • the conveyor that conveys the tire in order to apply the first mark and the second mark to the tire has a conveyor belt that is not a roller conveyor but a loop-shaped belt that forms an endless track. It is a belt conveyor, and the conveyance position of the conveyance belt is controlled by the control unit of the drive mechanism.
  • the tire T Since the conveyor belt of the belt conveyor is continuous in a belt shape from the upstream end to the downstream end in the transport direction, the tire T is more stable than the plurality of rollers of the roller conveyor. It can be held, and slippage is unlikely to occur between the conveyor belt and the tire. Thereby, in the said tire testing machine, the mark which shows the result of a tire test can be marked on the exact position in a tire.
  • the provided method is a tire marking method for stamping the first mark and the second mark on the tire using the tire testing machine.
  • the tire marking method is performed in the order of steps (a) to (d) shown below.
  • the drive mechanism so that the first marking mechanism can stamp the first mark at a first marking position for stamping the first mark on the surface of the tire.
  • the control unit of the control unit operates the driving unit to control the transport position of the transport belt, thereby moving the tire on the transport belt to the first tire position.
  • the first marking mechanism stamps the first mark at the first marking position of the tire that has moved to the first tire position.
  • the drive mechanism so that the second marking mechanism can stamp the second mark at the second marking position for stamping the second mark on the surface of the tire.
  • the control unit of the control unit operates the driving unit to control the transport position of the transport belt, thereby separating the tire on the transport belt by a predetermined distance in the transport direction with respect to the first tire position. To the second tire position.
  • the second marking mechanism stamps the second mark at the second marking position of the tire that has moved to the second tire position.
  • the cycle time of the tire test can be shortened, and the tire A mark indicating the result of the test can be marked at an accurate position on the tire.
  • a first mark is applied to the tire moved to the first tire position on the transport belt, and the tire is moved away from the first tire position by a predetermined distance in the transport direction.
  • a second mark is applied to the tire moved to the second tire position. Therefore, it is not necessary to provide the retraction mechanism for preventing the first marking mechanism and the second marking mechanism from contacting each other. This can prevent the apparatus configuration of the tire testing machine from becoming complicated.

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Abstract

The present invention includes: a belt conveyor (14) having a conveyance belt which is a loop-shaped belt body forming an endless track and which is for conveying, to the downstream side, a tire (T) that had been subjected to tire testing and removed from a spindle unit (9); a driving mechanism (60) having a driving part which drives the conveyance belt and a control unit which operates the driving part so as to control the conveying position of the conveyance belt; a first marking mechanism (61) for engraving a first mark indicating the result of the tire testing on the tire (T) disposed on the conveyor belt by using a first engraving method; and a second marking mechanism (62) for engraving a second mark indicating the result of the tire testing on the tire (T) disposed on the conveyor belt by using a second engraving method different from the first engraving method.

Description

タイヤ試験機及びタイヤのマーキング方法Tire testing machine and tire marking method
　本発明は、タイヤ試験機に関する技術であって、特に、タイヤ試験の結果をタイヤにマーキングする方法に関する。 The present invention relates to a technique related to a tire testing machine, and particularly to a method for marking a tire test result on a tire.
　従来、互いに異なる内周径又はトレッド面の幅を有する複数のタイヤの試験を実施することが可能なタイヤ試験機が知られている（例えば特許文献１）。そのタイヤ試験が実施された後には、当該タイヤ試験の結果を示すマークが、マーキング装置によりタイヤのサイドウォール面にマーキングされる。前記マークとしては、例えばハイポイントマークやグレードマークなどが挙げられる。 Conventionally, there is known a tire testing machine capable of testing a plurality of tires having different inner peripheral diameters or tread surface widths (for example, Patent Document 1). After the tire test is performed, a mark indicating the result of the tire test is marked on the sidewall surface of the tire by a marking device. Examples of the mark include a high point mark and a grade mark.
　前記ハイポイントマークは、前記タイヤのうち、フォースバリエーションの１次波形の最大値に対応する部分、すなわちトレッド面の最も硬い部分を示すものである。前記ハイポイントマークは、前記タイヤのサイドウォール面のうち、前記最大値に対応する部分（前記最大値が検出された位相）に打刻される。 The high point mark indicates the portion of the tire corresponding to the maximum value of the primary waveform of the force variation, that is, the hardest portion of the tread surface. The high point mark is stamped on a portion corresponding to the maximum value (phase where the maximum value is detected) on the sidewall surface of the tire.
　一方、前記グレードマークは、タイヤの等級を示すものである。前記タイヤの等級（タイヤのグレード）は、予め設定された各種測定項目及びその測定結果に応じて決定される。複数のグレードが予め設定されており、前記複数のグレードにそれぞれ対応する複数のグレードマークが予め設定されている。各グレードマークは、予め設定されているマーク形状、色、本数などの組合せで示される。前記グレードマークも、タイヤのサイドウォール面に打刻される。 On the other hand, the grade mark indicates the grade of the tire. The tire grade (tire grade) is determined in accordance with various measurement items set in advance and the measurement results. A plurality of grades are set in advance, and a plurality of grade marks respectively corresponding to the plurality of grades are set in advance. Each grade mark is indicated by a combination of a preset mark shape, color, number, and the like. The grade mark is also stamped on the sidewall surface of the tire.
　通常、グレードマークは、ハイポイントマークに近い位置に打刻されるが、前記サイドウォール面のいずれの位置に打刻されてもよい。また、ハイポイントとグレードを組合せたマークがマーキングされることもある。 Normally, the grade mark is stamped at a position close to the high point mark, but it may be stamped at any position on the sidewall surface. In addition, a mark combining high point and grade may be marked.
　各マークのマーキング方法としては、熱転写テープを用いて印字する方式や、インクを用いて印字する方式などが挙げられる。また、各マークは、タイヤのサイドウォール面のうち、マークの欠けが生じ難い部位にマーキングされる。 As a marking method of each mark, there are a method of printing using a thermal transfer tape, a method of printing using ink, and the like. Each mark is marked on a portion of the sidewall surface of the tire where it is difficult for the mark to be chipped.
　前記マーキング装置には、タイヤがスピンドルに装着された状態で当該タイヤにマークを施す方式と、タイヤが前記スピンドルから取り外されてコンベア上に配置されるタイヤにマークを施す方式とがある。また、通常、マーキング装置には、タイヤのサイドウォール面におけるマーキング位置を径方向に微調整するための機構が設けられており、当該機構は、前記マーキング位置を任意の径方向位置に調整できる。 The marking device includes a method for marking a tire with the tire mounted on a spindle and a method for marking a tire that is removed from the spindle and placed on a conveyor. In general, the marking device is provided with a mechanism for finely adjusting the marking position on the sidewall surface of the tire in the radial direction, and the mechanism can adjust the marking position to an arbitrary radial position.
　しかし、タイヤがスピンドルに装着された状態で当該タイヤにマークを施す場合には、当該タイヤへのマーキングが終了するまでの間、タイヤがスピンドルに装着されたままであるので、次のタイヤ試験のために前記スピンドルを用いることができない。したがって、次のタイヤ試験に速やかに移行することができない。つまり、タイヤ試験においてサイクルタイムにロスが生じてサイクルタイムが長くなる。 However, if the tire is marked with the tire mounted on the spindle, the tire will remain mounted on the spindle until the marking on the tire is completed. The spindle cannot be used. Therefore, it is not possible to quickly shift to the next tire test. That is, in the tire test, the cycle time is lost and the cycle time becomes longer.
　また、従来タイヤを搬送するために用いられてきたローラコンベア方式の搬送ローラは、当該搬送ローラの振動によりタイヤが移動中に回転して位相が変わってしまうなどの問題を有するので、ローラコンベア上でのタイヤへの正確なマーキングは困難である。 In addition, the roller conveyor type transport rollers that have been used for transporting conventional tires have problems such as the tire rotating and moving in phase due to the vibration of the transport rollers. It is difficult to mark the tire accurately.
特許６０３４７５９号公報Japanese Patent No. 6034759
　本発明は、タイヤ試験の結果を示すマークをタイヤにおける正確な位置に施すと共に、タイヤ試験のサイクルタイムを短縮することができるタイヤ試験機及び当該タイヤ試験機を用いたタイヤのマーキング方法を提供することを目的とする。 The present invention provides a tire testing machine capable of shortening the cycle time of a tire test and a method for marking a tire using the tire testing machine while marking a tire test result at an accurate position on the tire. For the purpose.
　本発明にかかるタイヤ試験機は、タイヤ試験が実施されてスピンドルユニットから取り外されたタイヤを搬送方向の下流側へ搬送するための搬送ベルトであって無限軌道を形成するループ状の帯体である搬送ベルトを有するベルトコンベアと、前記搬送ベルトを駆動する駆動部と前記搬送ベルトの搬送位置を制御するように前記駆動部を作動させる制御部とを有する駆動機構と、前記搬送ベルト上の前記タイヤに対して前記タイヤ試験の結果を示す第１のマークを第１の打刻方式を用いて打刻するための第１のマーキング機構と前記搬送ベルト上の前記タイヤに対して前記タイヤ試験の結果を示す第２のマークを前記第１の打刻方式とは異なる第２の打刻方式を用いて打刻するための第２のマーキング機構とを含むマーキング装置と、を備える。 The tire testing machine according to the present invention is a loop belt that forms an endless track, which is a transport belt for transporting a tire that has been subjected to a tire test and removed from a spindle unit to the downstream side in the transport direction. A belt conveyor having a transport belt; a drive mechanism that drives the transport belt; and a drive mechanism that operates the drive section to control a transport position of the transport belt; and the tire on the transport belt The tire test result for the tire on the conveyor belt and the first marking mechanism for stamping the first mark indicating the tire test result using the first stamping method A marking device including a second marking mechanism for marking a second mark indicating a second mark using a second stamping method different from the first stamping method. That.
本発明の実施形態に係るタイヤ試験機の平面図である。1 is a plan view of a tire testing machine according to an embodiment of the present invention. 本発明の実施形態に係るタイヤ試験機の正面図である。1 is a front view of a tire testing machine according to an embodiment of the present invention. 本発明の実施形態に係るタイヤ試験機を入口側から見た側面図である。It is the side view which looked at the tire testing machine concerning the embodiment of the present invention from the entrance side. 前記タイヤ試験機におけるマーキング部の概略を示した平面図である。It is the top view which showed the outline of the marking part in the said tire testing machine. 前記タイヤ試験機におけるマーキング部の概略を示した正面図である。It is the front view which showed the outline of the marking part in the said tire testing machine. 前記タイヤ試験機の全体構成を模式的に示した平面図である。It is the top view which showed typically the whole structure of the said tire testing machine.
　以下、本発明の実施形態にかかるタイヤ試験機１、及びタイヤ試験機１を用いたタイヤのマーキング方法について図面を参照して説明する。 Hereinafter, a tire testing machine 1 according to an embodiment of the present invention and a tire marking method using the tire testing machine 1 will be described with reference to the drawings.
　なお、以下に説明する実施形態は、本発明を具体化した一例であって、その具体例をもって本発明の構成を限定するものではない。 The embodiment described below is an example in which the present invention is embodied, and the configuration of the present invention is not limited by the specific example.
　図１～図６は、前記実施形態に係るタイヤ試験機１を示す。 1 to 6 show the tire testing machine 1 according to the embodiment.
　以降のタイヤ試験機１の説明において、タイヤＴの搬送方向についての当該タイヤＴの搬送経路Ｆの長さがタイヤ試験機１の全長に相当する。前記搬送経路Ｆに対して交差する水平方向、より正確には当該搬送経路Ｆに対して略直交する水平方向がタイヤ試験機１の奥行き方向に相当する。当該奥行き方向はタイヤ試験機１の左右方向又は幅方向とも称される。 In the following description of the tire testing machine 1, the length of the conveyance path F of the tire T in the conveyance direction of the tire T corresponds to the total length of the tire testing machine 1. The horizontal direction intersecting with the conveyance path F, more precisely, the horizontal direction substantially orthogonal to the conveyance path F corresponds to the depth direction of the tire testing machine 1. The depth direction is also referred to as the left-right direction or the width direction of the tire testing machine 1.
　前記タイヤ試験機１は、ルブリケーション部２と、タイヤ試験部３と、マーキング部４と、を備える。前記ルブリケーション部２は、前記タイヤＴを回転させつつ当該タイヤＴのビード部Ｂにルブリケーション液を塗布する。前記タイヤ試験部３は、前記ルブリケーション部２でルブリケーション液が塗布されたタイヤＴをスピンドルユニット上で回転させつつタイヤ試験を行ってタイヤＴに存在する特異点を検出する。前記マーキング部４は、前記タイヤＴにおいて前記特異点が存在する周方向の位置にマーキングを施す。 The tire testing machine 1 includes a lubrication unit 2, a tire testing unit 3, and a marking unit 4. The lubrication part 2 applies lubrication liquid to the bead part B of the tire T while rotating the tire T. The tire test unit 3 detects a singular point existing in the tire T by performing a tire test while rotating the tire T to which the lubrication liquid is applied in the lubrication unit 2 on a spindle unit. The marking unit 4 marks the tire T at a circumferential position where the singular point exists.
　前記ルブリケーション部２、前記タイヤ試験部３及び前記マーキング部４は、前記搬送経路Ｆに沿って上流側から下流側に向かってその順番に並んでいる。 The lubrication part 2, the tire test part 3 and the marking part 4 are arranged in that order along the transport path F from the upstream side toward the downstream side.
　前記ルブリケーション部２は、タイヤＴが水平に寝た姿勢で当該タイヤＴを搬送する左右一対の第１コンベア５と、前記一対の第１コンベア５により搬入されたタイヤＴを狭持する左右一対のアーム部６と、前記一対のアーム部６により保持されたタイヤＴのビード部Ｂ（内周縁）にルブリケーション液を塗布する塗布部７と、を有する。 The lubrication unit 2 includes a pair of left and right first conveyors 5 that conveys the tire T in a posture in which the tire T lies horizontally, and a pair of left and right tires that are carried by the pair of first conveyors 5. And an application part 7 for applying a lubrication liquid to the bead part B (inner peripheral edge) of the tire T held by the pair of arm parts 6.
　本実施形態において、前記第１コンベア５のそれぞれは、無限軌道を形成するループ状の帯体である搬送ベルトを有するベルトコンベアであるが、第１コンベア５はベルトコンベア方式に限定されるものではない。 In the present embodiment, each of the first conveyors 5 is a belt conveyor having a conveyor belt that is a loop-shaped belt forming an endless track, but the first conveyor 5 is not limited to the belt conveyor system. Absent.
　前記一対のアーム部６のそれぞれの先端には回転ローラ８が回転可能に設けられている。前記ルブリケーション部２では、当該一対のアーム部６は、搬送されてきたタイヤＴを左右両外側から挟み込んで、前記回転ローラ８を前記タイヤＴの外周面であるトレッド面に接触させる。前記回転ローラ８は、タイヤＴが上下方向を向く軸心回りに回転することを許容するように回転する。前記塗布部７は、上下方向に移動可能に構成されている。前記塗布部７は、ブラシ状をなし、前記一対のアーム部６に保持されている前記タイヤＴのビード部Ｂに接触する位置まで上昇して当該ビード部Ｂにルブリケーション液を塗布する。前記塗布部７は、塗布後に第１コンベア５の下方の位置に戻されて格納される。 Rotating rollers 8 are rotatably provided at the respective tips of the pair of arm portions 6. In the lubrication unit 2, the pair of arm units 6 sandwich the conveyed tire T from the left and right outer sides, and bring the rotating roller 8 into contact with a tread surface that is an outer peripheral surface of the tire T. The rotating roller 8 rotates so as to allow the tire T to rotate about an axis that faces in the vertical direction. The application unit 7 is configured to be movable in the vertical direction. The application part 7 has a brush shape and rises to a position where it comes into contact with the bead part B of the tire T held by the pair of arm parts 6 to apply the lubrication liquid to the bead part B. The application unit 7 is returned to the position below the first conveyor 5 after application and stored.
　前記一対の第１コンベア５は、前記ルブリケーション液の塗布が施されたタイヤＴを前記ルブリケーション部２から前記タイヤ試験部３へ搬送する。 The pair of first conveyors 5 conveys the tire T to which the lubrication liquid has been applied from the lubrication unit 2 to the tire test unit 3.
　前記タイヤ試験部３は、スピンドルユニット９と、ドラム１０と、左右一対の第２コンベア１１と、リムテーブル１３と、リム入替機構１６と、を有する。 The tire test unit 3 includes a spindle unit 9, a drum 10, a pair of left and right second conveyors 11, a rim table 13, and a rim replacement mechanism 16.
　前記スピンドルユニット９は、前記タイヤＴが上下方向を向く軸心回りに回転するのを許容するように当該タイヤＴを保持する。前記ドラム１０は、上下方向を向く中心軸をもつ円筒状の外周面を有するとともに前記中心軸回りに回転可能となるように前記スピンドルユニット９の側方に配置される。 The spindle unit 9 holds the tire T so as to allow the tire T to rotate about an axis that is directed in the vertical direction. The drum 10 has a cylindrical outer peripheral surface having a central axis facing in the vertical direction, and is disposed on the side of the spindle unit 9 so as to be rotatable around the central axis.
　前記一対の第２コンベア１１は、前記ルブリケーション部２から搬送されてきたタイヤＴを水平に寝た姿勢のまま搬送する。前記リムテーブル１３は、その上に複数のリム１２が搭載されることが可能な水平なリム搭載面を有する。前記リム入替機構１６は、前記スピンドルユニット９（具体的には、後述する上スピンドル９ａ及び下スピンドル９ｂ）に取り付けられているリム１２を別のリムに交換する。 The pair of second conveyors 11 conveys the tire T conveyed from the lubrication unit 2 in a horizontally lying posture. The rim table 13 has a horizontal rim mounting surface on which a plurality of rims 12 can be mounted. The rim replacement mechanism 16 replaces the rim 12 attached to the spindle unit 9 (specifically, an upper spindle 9a and a lower spindle 9b described later) with another rim.
　この実施形態において、前記一対の第２コンベア１１のそれぞれは、上流側コンベア１１ａと、前記搬送方向について前記上流側コンベア１１ａの下流側に配置された下流側コンベア１１ｂとにより構成される。当該上流側及び下流側コンベア１１ａ，１１ｂのそれぞれは、無限軌道を形成するループ状の帯体である搬送ベルトを有するベルトコンベアである。前記タイヤ試験部３は、スピンドルユニット９を回転駆動する図略の回転駆動部をさらに有する。 In this embodiment, each of the pair of second conveyors 11 includes an upstream conveyor 11a and a downstream conveyor 11b disposed on the downstream side of the upstream conveyor 11a in the transport direction. Each of the upstream and downstream conveyors 11a and 11b is a belt conveyor having a conveyor belt that is a loop-shaped belt that forms an endless track. The tire test unit 3 further includes a rotation drive unit (not shown) that drives the spindle unit 9 to rotate.
　前記タイヤ試験機１は、グラインダー２３をさらに備える。当該グラインダー２３は、前記タイヤＴがタイヤ試験における許容値を超えた場合、タイヤＴにおけるトレッド面とサイドウォール面との境界部分であるショルダー部を削る。当該グラインダー２３は、タイヤ試験部３の出口側に設けられている。これにより、タイヤＴがタイヤ試験における許容値内に入るように調整される。 The tire testing machine 1 further includes a grinder 23. When the tire T exceeds an allowable value in the tire test, the grinder 23 cuts a shoulder portion that is a boundary portion between the tread surface and the sidewall surface of the tire T. The grinder 23 is provided on the exit side of the tire test unit 3. Thus, the tire T is adjusted so as to fall within the allowable value in the tire test.
　前記スピンドルユニット９は、タイヤＴが上下方向を向く軸心回りに回転するのを許容するように当該タイヤＴを前記リム１２を介して保持する。スピンドルユニット９は、上スピンドル９ａと下スピンドル９ｂとに２分割された構造を有する。当該上スピンドル９ａ及び当該下スピンドル９ｂのそれぞれは上下方向を向く互いに共通の軸心回りに回転可能な棒状の部材である。 The spindle unit 9 holds the tire T via the rim 12 so as to allow the tire T to rotate about an axis that is directed in the vertical direction. The spindle unit 9 has a structure that is divided into an upper spindle 9a and a lower spindle 9b. Each of the upper spindle 9a and the lower spindle 9b is a rod-like member that can rotate around a common axis that faces in the vertical direction.
　前記複数のリム１２のそれぞれは、前記上スピンドル９ａの下端部に取付けられる上リム１２ａと、前記下スピンドル９ｂの上端部に取付けられる下リム１２ｂと、により構成される。当該上リム１２ａ及び当該下リム１２ｂは、前記一対の第２コンベア１１上のタイヤＴを上下方向に挟み込むことが可能となるように配置されている。各リム１２は、上リム１２ａと、下リム１２ｂとに２分割された構造を有する。 Each of the plurality of rims 12 includes an upper rim 12a attached to the lower end portion of the upper spindle 9a and a lower rim 12b attached to the upper end portion of the lower spindle 9b. The upper rim 12a and the lower rim 12b are arranged so that the tire T on the pair of second conveyors 11 can be sandwiched in the vertical direction. Each rim 12 has a structure that is divided into an upper rim 12a and a lower rim 12b.
　前記リムテーブル１３は、下スピンドル９ｂの近傍に設けられている。当該リムテーブル１３は、上リム１２ａと下リム１２ｂが積層された状態のリム１２を搭載可能である。 The rim table 13 is provided in the vicinity of the lower spindle 9b. The rim table 13 can be mounted with a rim 12 in which an upper rim 12a and a lower rim 12b are stacked.
　リムテーブル１３は、円盤状の板材からなり、上下方向を向く軸心回りに回転自在であり、当該リムテーブル１３の回転中心軸が前記搬送方向について前記スピンドルユニット９よりも搬出側（出口側）に位置するように配置されている。このリムテーブル１３は、前記リム搭載面における回転周方向に並ぶ複数の位置において、上スピンドル９ａ及び下スピンドル９ｂに取り付け可能な、互いに異なるサイズを有する複数のリム１２（上リム１２ａと下リム１２ｂとが積層されたもの）を搭載することが可能である。本実施形態では、リムテーブル１３は、ロータリテーブル方式であり、互いに異なるサイズを有して前記回転周方向に並ぶ４つのリム１２を搭載することが可能である。 The rim table 13 is made of a disk-shaped plate material, and is rotatable around an axial center that faces in the vertical direction. It is arranged to be located in. The rim table 13 includes a plurality of rims 12 having different sizes (an upper rim 12a and a lower rim 12b) that can be attached to the upper spindle 9a and the lower spindle 9b at a plurality of positions arranged in the rotational circumferential direction on the rim mounting surface. Can be mounted). In the present embodiment, the rim table 13 is a rotary table system, and it is possible to mount four rims 12 having different sizes and arranged in the rotational circumferential direction.
　前記ドラム１０は、スピンドルユニット９に保持されたタイヤＴのトレッド面に対して前記ドラム１０の外周面が当該タイヤＴの径方向に接離することが可能となるように、前記スピンドルユニット９の近傍に配置されている。前記ドラム１０の外周面が前記スピンドルユニット９に保持されたタイヤＴのトレッド面に接触した状態で当該タイヤＴを所定の回転数で回転させることにより、当該タイヤＴの試験が行われる。このドラム１０は回転軸を有し、当該回転軸には、回転中のタイヤＴからドラム１０に加わる力やモーメントなどを計測する図略のロードセルが取り付けられている。 The drum 10 is arranged so that the outer peripheral surface of the drum 10 can come into contact with and separate from the tread surface of the tire T held by the spindle unit 9 in the radial direction of the tire T. It is arranged in the vicinity. The test of the tire T is performed by rotating the tire T at a predetermined rotation speed in a state where the outer peripheral surface of the drum 10 is in contact with the tread surface of the tire T held by the spindle unit 9. The drum 10 has a rotating shaft, and a load cell (not shown) for measuring a force or moment applied to the drum 10 from the rotating tire T is attached to the rotating shaft.
　前記ロードセルで計測された結果に基づき、タイヤユニフォミティなどが計算され、タイヤＴの反発力が最も大きくなる周方向位置や軸方向位置などが「特異点」として計測される。前記タイヤ試験部３で行われるタイヤ試験は、上記したタイヤユニフォミティの測定だけでなく、外形形状の計測なども含む。 The tire uniformity is calculated based on the result measured by the load cell, and the circumferential position and the axial position where the repulsive force of the tire T is maximized are measured as “singular points”. The tire test performed in the tire test unit 3 includes not only the measurement of the tire uniformity described above but also the measurement of the outer shape.
　「特異点」が計測されたタイヤＴは、タイヤ試験部３で「特異点」におけるマーキング位置に応じた所定の角度だけ回転させられた後、当該タイヤ試験部３から前記マーキング部４に送られる。 The tire T on which the “singular point” is measured is rotated by a predetermined angle corresponding to the marking position at the “singular point” in the tire test unit 3 and then sent from the tire test unit 3 to the marking unit 4. .
　前記マーキング部４は、例えば、タイヤ試験部３でタイヤＴのタイヤユニフォミティについてのタイヤ試験が行われる場合、前記タイヤ試験で特定された「特異点」を示すユニフォミティマークなどのマークを、前記タイヤユニフォミティに特異性があるタイヤＴの周方向位置に与える。外形形状の計測などについてのタイヤ試験が行われる場合には、前記ユニフォミティマーク以外のマークがタイヤＴに与えられてもよい。 For example, when the tire test on the tire uniformity of the tire T is performed in the tire test unit 3, the marking unit 4 is provided with a mark such as a uniformity mark indicating the “singularity” specified in the tire test. Is given to the circumferential direction position of the tire T. When a tire test for measuring an outer shape or the like is performed, a mark other than the uniformity mark may be given to the tire T.
　図１、図４及び図５に示すように、前記マーキング部４は、左右一対の第３ベルトコンベア１４と、駆動機構６０と、マーキング装置１５と、を有する。前記マーキング装置１５は、前記一対の第３ベルトコンベア１４上に位置決めされたタイヤＴの所定位置（例えばタイヤＴの内周側の所定位置）に対して前記タイヤ試験の結果を示す複数のマークを施す。前記駆動機構６０は、前記一対の第３ベルトコンベア１４を駆動する。 As shown in FIGS. 1, 4, and 5, the marking unit 4 includes a pair of left and right third belt conveyors 14, a drive mechanism 60, and a marking device 15. The marking device 15 has a plurality of marks indicating the results of the tire test with respect to a predetermined position of the tire T positioned on the pair of third belt conveyors 14 (for example, a predetermined position on the inner peripheral side of the tire T). Apply. The drive mechanism 60 drives the pair of third belt conveyors 14.
　前記一対の第３ベルトコンベア１４は、タイヤ試験が実施されてスピンドルユニット９から取り外されたタイヤＴを載せて当該タイヤＴを搬送方向の下流側へ搬送する搬送ベルト１４Ａを有する。当該一対の第３ベルトコンベア１４は、前記タイヤＴが水平に寝た姿勢のまま当該タイヤＴを前記搬送方向の下流側へ搬送する。 The pair of third belt conveyors 14 includes a conveyance belt 14A that carries a tire T that has been removed from the spindle unit 9 after a tire test and conveys the tire T to the downstream side in the conveyance direction. The pair of third belt conveyors 14 conveys the tire T to the downstream side in the conveyance direction with the tire T lying horizontally.
　前記一対の第３ベルトコンベア１４のそれぞれにおける前記搬送ベルト１４Ａは、無限軌道を形成するループ状の帯体である。前記一対の第３ベルトコンベア１４はベルトコンベア方式である。 The conveyor belt 14A in each of the pair of third belt conveyors 14 is a loop-shaped belt that forms an endless track. The pair of third belt conveyors 14 is a belt conveyor system.
　駆動機構６０は、前記一対の第３ベルトコンベア１４のそれぞれの搬送ベルト１４Ａの搬送位置を精密に制御するための機構である。本実施形態では、図５に示すように、駆動機構６０は、サーボモータ６０Ａ（駆動部の一例）と、制御部６０Ｂと、を含む。前記サーボモータ６０Ａは、前記搬送ベルト１４Ａを駆動する。前記制御部６０Ｂは、前記搬送ベルト１４Ａの搬送位置を制御するように前記サーボモータ６０Ａを作動させる。制御部６０Ｂは、例えばマイクロコンピュータにより構成される。 The drive mechanism 60 is a mechanism for precisely controlling the transport position of each transport belt 14A of the pair of third belt conveyors 14. In the present embodiment, as shown in FIG. 5, the drive mechanism 60 includes a servomotor 60A (an example of a drive unit) and a control unit 60B. The servo motor 60A drives the transport belt 14A. The controller 60B operates the servo motor 60A so as to control the transport position of the transport belt 14A. The control unit 60B is configured by a microcomputer, for example.
　マーキング装置１５は、互いに打刻方式が異なる複数のマーキング機構を含む。本実施形態のマーキング装置１５においては、前記複数のマーキング機構は、第１のマーキング機構６１と、第２のマーキング機構６２と、を含む。前記第１のマーキング機構６１は、前記搬送ベルト１４Ａに載せられた前記タイヤＴに対して前記タイヤ試験の結果を示す第１のマークを第１の打刻方式を用いて打刻するための第１の刻印装置６１Ａを有する。前記第２のマーキング機構６２は、前記搬送ベルト１４Ａに載せられた前記タイヤＴに対して前記タイヤ試験の結果を示す第２のマークを第２の打刻方式を用いて打刻するための第２の刻印装置６２Ａを有する。当該第２の打刻方式は、前記第１の打刻方式とは異なる。具体的には、前記第１のマーキング機構６１は、ハイポイントマークを熱転写方式を用いて前記タイヤＴの表面に打刻するハイポイントマーキング機構であり、前記第２のマーキング機構６２は、グレードマークをインクスタンプ方式を用いて前記タイヤＴの表面に打刻するグレードマーキング機構である。 The marking device 15 includes a plurality of marking mechanisms having different stamping methods. In the marking device 15 of this embodiment, the plurality of marking mechanisms include a first marking mechanism 61 and a second marking mechanism 62. The first marking mechanism 61 uses a first stamping method to stamp a first mark indicating a result of the tire test on the tire T placed on the transport belt 14A. 1 marking device 61A. The second marking mechanism 62 uses a second stamping method to stamp a second mark indicating a result of the tire test on the tire T placed on the transport belt 14A. 2 marking device 62A. The second stamping method is different from the first stamping method. Specifically, the first marking mechanism 61 is a high point marking mechanism that stamps a high point mark on the surface of the tire T using a thermal transfer method, and the second marking mechanism 62 is a grade mark. Is a grade marking mechanism that stamps on the surface of the tire T using an ink stamp method.
　前記第１の刻印装置６１Ａは、例えば、マーキングピンを有するマーキングヘッドと、前記マーキングピンが押し当てられる熱転写テープと、を含む。 The first marking device 61A includes, for example, a marking head having marking pins and a thermal transfer tape against which the marking pins are pressed.
　前記第２の刻印装置６２Ａは、例えば、複数のマーキングピンと、インクを収容する少なくとも一つのインクパンと、を含む。前記複数のマーキングピンは、当該複数のマーキングピンのそれぞれの先端部が前記インクパン内のインクに浸るように配置される。当該第２の刻印装置６２ＡがタイヤＴにマーキングを施す際には、前記インクパンが前記複数のマーキングピンのそれぞれの先端部から離れ、かつ、前記複数のマーキングピンの移動を邪魔しない位置に移動する。その後、前記複数のマーキングピンのうちの何れかのマーキングピンが前記タイヤＴに向かって移動し当該タイヤＴに接することによりマーキングが施される。 The second marking device 62A includes, for example, a plurality of marking pins and at least one ink pan for containing ink. The plurality of marking pins are arranged such that respective tip portions of the plurality of marking pins are immersed in the ink in the ink pan. When the second marking device 62A marks the tire T, the ink pan moves away from the tip of each of the plurality of marking pins and moves to a position that does not interfere with the movement of the plurality of marking pins. To do. After that, any marking pin among the plurality of marking pins moves toward the tire T and comes into contact with the tire T to perform marking.
　マーキング部４におけるタイヤＴのマーキング方法は、以下に示すステップ(a)～(d)の順に実施される。 The marking method of the tire T in the marking unit 4 is performed in the order of steps (a) to (d) shown below.
　(a)　前記駆動機構６０の制御部６０Ｂは、サーボモータ６０Ａを作動させて前記一対の第３ベルトコンベア１４のそれぞれの前記搬送ベルト１４Ａの搬送位置を制御することにより前記搬送ベルト１４Ａに載せられたタイヤＴを前記第３ベルトコンベア１４上の所定の位置（図５に示す第１のタイヤ位置Ｐ１）に移動させる。この第１のタイヤ位置Ｐ１は、一対の前記搬送ベルト１４Ａ上のタイヤの位置であり、前記ハイポイントマークを打刻するための前記タイヤＴのサイドウォール面における第１のマーキング位置に前記ハイポイントマーキング機構６１が前記ハイポイントマークを打刻することができるタイヤＴの位置である。本実施形態においては、図５に示すように、前記第１のタイヤ位置Ｐ１は、前記タイヤＴのサイドウォール面が前記ハイポイントマーキング機構６１の真下に配置される位置である。 (a) The controller 60B of the drive mechanism 60 is placed on the conveyor belt 14A by operating the servo motor 60A to control the conveyance position of the conveyor belt 14A of each of the pair of third belt conveyors 14. The tire T is moved to a predetermined position on the third belt conveyor 14 (first tire position P1 shown in FIG. 5). The first tire position P1 is the position of the tire on the pair of the conveyor belts 14A, and the high point is located at the first marking position on the sidewall surface of the tire T for marking the high point mark. This is the position of the tire T where the marking mechanism 61 can stamp the high point mark. In the present embodiment, as shown in FIG. 5, the first tire position P <b> 1 is a position where the sidewall surface of the tire T is disposed directly below the high point marking mechanism 61.
　上述したように前記タイヤ試験部３において特異点が検出される。当該タイヤ試験部３では、前記タイヤＴの当該特異点の位相（タイヤＴにおける周方向の位置）が、前記ハイポイントマーキング機構６１のピン（第１の刻印装置）がタイヤＴのサイドウォール面に打刻するときの位相と一致するように、前記タイヤＴが前記スピンドルユニット９に保持された状態で、周方向における当該タイヤＴの配置が予め調節される。 As described above, a singular point is detected in the tire test unit 3. In the tire test section 3, the phase of the singular point of the tire T (the circumferential position in the tire T) is the pin (first marking device) of the high point marking mechanism 61 on the sidewall surface of the tire T. The arrangement of the tire T in the circumferential direction is adjusted in advance in a state where the tire T is held by the spindle unit 9 so as to coincide with the phase at the time of stamping.
　タイヤ試験機１は、メモリなどにより構成される記憶部を備え、当該記憶部は、タイヤ試験のための種々の情報を記憶している。当該種々の情報は、例えば、タイヤ試験の対象であるタイヤＴの直径やリムサイズなどの情報、タイヤ試験を行うための試験条件、当該タイヤ試験の結果を示すマークをタイヤＴに施すための位置に関する位置情報などを含む。当該位置情報は、マークが施されるタイヤＴのサイドウォール面における径方向位置に関する情報を含む。当該径方向位置は、前記サイドウォール面において前記マークの欠けが生じにくい位置にタイヤＴの種類ごとに予め設定される。具体的には、タイヤＴのサイドウォール面には種々の意匠や文字列が施され、これらの意匠や文字列の大きさや位置は、タイヤＴの種類に応じて異なる。マーキング装置１５によりタイヤＴのサイドウォール面にマーキングされるマークが前記意匠や文字列に重なると、当該マークの欠けが生じる。したがって、前記径方向位置は、前記意匠や文字列が施されていない位置にタイヤＴの種類に応じて決定される。 The tire testing machine 1 includes a storage unit configured by a memory or the like, and the storage unit stores various information for the tire test. The various information relates to, for example, information on the diameter and rim size of the tire T that is a subject of the tire test, test conditions for performing the tire test, and a position for applying a mark indicating the tire test result to the tire T. Includes location information. The position information includes information on the radial position on the sidewall surface of the tire T to which the mark is applied. The radial position is set in advance for each type of tire T at a position where the mark is unlikely to occur on the sidewall surface. Specifically, various designs and character strings are applied to the sidewall surface of the tire T, and the sizes and positions of these designs and character strings vary depending on the type of the tire T. When the mark marked on the sidewall surface of the tire T by the marking device 15 overlaps the design or character string, the mark is missing. Accordingly, the radial position is determined in accordance with the type of the tire T at a position where the design or character string is not applied.
　タイヤ試験部３においてタイヤ試験が実施された結果、前記特異点としてのハイポイント（タイヤＴにおける最も硬い個所）が検出される。前記タイヤＴにおける前記ハイポイントの位相が、ハイポイントマーキング機構６１のピンがタイヤＴのサイドウォール面に打刻するときの位相と一致するように、タイヤ試験部３は、前記スピンドルユニット９に保持されたタイヤＴを回転させる。その後、当該タイヤＴは、前記スピンドルユニット９から前記第２コンベア１１に移され、当該第２コンベア１１から前記第３ベルトコンベア１４（出口側コンベア）に移される。前記径方向位置やマーキング角度は、試験対象のタイヤＴの種類毎に、タイヤ試験機１に予め登録されている。前記マーキング角度は次のような角度のことをいう。すなわち、マーキングを施すタイヤのサイドウォール面は複雑な曲面で構成されているので、欠けのないきれいなマーキングを行うためには、マーキングピンが前記サイドウォール面におけるマーキング部位にできるだけ垂直に押し付けられることが好ましい。したがって、タイヤ試験機１は、角度調整機構を有し、当該角度調整機構は、タイヤ種類と径方向位置に応じて、前記マーキングピンを含むマーキングヘッド全体を任意の角度に調整することができる。このように前記角度調整機構により調整される前記マーキングヘッドの角度がマーキング角度である。 As a result of the tire test performed in the tire test unit 3, a high point (the hardest part in the tire T) as the singular point is detected. The tire test unit 3 is held by the spindle unit 9 so that the phase of the high point in the tire T matches the phase when the pin of the high point marking mechanism 61 is engraved on the sidewall surface of the tire T. The tire T is rotated. Thereafter, the tire T is transferred from the spindle unit 9 to the second conveyor 11, and is transferred from the second conveyor 11 to the third belt conveyor 14 (exit side conveyor). The radial position and the marking angle are registered in advance in the tire testing machine 1 for each type of the tire T to be tested. The marking angle refers to the following angle. In other words, since the sidewall surface of the tire to be marked is composed of a complex curved surface, the marking pin can be pressed as vertically as possible to the marking site on the sidewall surface in order to perform clean marking without chipping. preferable. Therefore, the tire testing machine 1 has an angle adjustment mechanism, and the angle adjustment mechanism can adjust the entire marking head including the marking pin to an arbitrary angle according to the tire type and the radial position. Thus, the angle of the marking head adjusted by the angle adjusting mechanism is a marking angle.
　また、グレードマーキングは、例えば、事業所内において前記タイヤＴを選別する等の目的で使用される判別用のマークであり、タイヤＴの出荷前に消去される。そのため、グレードマーキングの位置は、厳密な位置（正確な位置）は要求されない。前記グレードマーキングの位置は、例えばハイポイントの位置に対して位相差が０°付近となる位置や、位相差が１８０°度付近となる位置に予め設定されている。前記グレードマーキングの位置が、前記位相差が０°付近となる位置である場合、グレードマーキング機構６２は、当該グレードマーキング機構６２によるグレードマークがハイポイントマークと重ならないようにするための微調整機能を備える。当該微調整機能は、前記グレードマークの位置を前記ハイポイントマークに対してずらすことができる。本実施形態では、前記グレードマーキングの位置は、タイヤ試験機１の設計段階において、マーキング部４の配置が決定されると、固定された位置となる。ただし、前記タイヤ試験機１は、前記グレードマーキングの位置を、例えばタイヤＴの種類に応じて変更可能なように構成されていてもよい。 Also, the grade marking is a discrimination mark used for the purpose of, for example, selecting the tire T in the office, and is erased before the tire T is shipped. Therefore, the position of the grade marking is not required to be an exact position (accurate position). For example, the grade marking position is set in advance at a position where the phase difference is near 0 ° with respect to the high point position or a position where the phase difference is near 180 °. When the position of the grade marking is a position where the phase difference is near 0 °, the grade marking mechanism 62 has a fine adjustment function for preventing the grade mark by the grade marking mechanism 62 from overlapping the high point mark. Is provided. The fine adjustment function can shift the position of the grade mark with respect to the high point mark. In the present embodiment, the grade marking position is a fixed position when the arrangement of the marking portion 4 is determined in the design stage of the tire testing machine 1. However, the tire testing machine 1 may be configured such that the position of the grade marking can be changed according to the type of the tire T, for example.
　前記タイヤ試験が実施されたタイヤＴは、前記タイヤ試験部３において調節された前記位相（最初に打刻されるハイポイントマークのための位相）が維持されながら、前記一対の第２ベルトコンベア１１によってマーキング部４へ搬送される。 The tire T on which the tire test has been performed maintains the phase adjusted in the tire test unit 3 (the phase for the high point mark to be stamped first) while maintaining the pair of second belt conveyors 11. Is conveyed to the marking unit 4.
　マーキング部４では、前記一対の第３ベルトコンベア１４は、試験が実施されたタイヤＴを、ハイポイントマーキングを施すための前記第１のタイヤ位置Ｐ１に移動させる。前記第１のタイヤ位置Ｐ１は、第２のタイヤ位置Ｐ２よりもマーキング部４における入口側に設けられている。 In the marking unit 4, the pair of third belt conveyors 14 moves the tested tire T to the first tire position P1 for high point marking. The first tire position P1 is provided closer to the entrance side in the marking portion 4 than the second tire position P2.
　前記駆動機構６０の制御部６０Ｂは、熱転写方式のハイポイントマーキング機構６１の第１の刻印装置６１Ａと、前記タイヤＴにおける決定されたハイポイントのマーキング位置（第１のマーキング位置）とが合致するように前記サーボモータ６０Ａを作動させることにより、前記一対の第３ベルトコンベア１４の前記搬送ベルト１４Ａの搬送位置を調整する。 The controller 60B of the drive mechanism 60 matches the first marking device 61A of the thermal transfer type high point marking mechanism 61 with the determined high point marking position (first marking position) in the tire T. By operating the servo motor 60A as described above, the transport position of the transport belt 14A of the pair of third belt conveyors 14 is adjusted.
　(b)　 前記一対の第３ベルトコンベア１４上の前記第１のタイヤ位置Ｐ１に前記タイヤＴが移動すると、熱転写方式（第１の打刻方式の一例）のハイポイントマーキング機構６１は、試験が実施されたタイヤＴのサイドウォール面の第１のマーキング位置に、一点目のマーキング、すなわちハイポイントマーキングを施す。 (b) When the tire T moves to the first tire position P1 on the pair of third belt conveyors 14, the high-point marking mechanism 61 of the thermal transfer method (an example of the first stamping method) is tested. The first marking, that is, the high point marking is applied to the first marking position on the sidewall surface of the tire T that has been implemented.
　(c)　前記駆動機構６０の制御部６０Ｂは、前記サーボモータ６０Ａを作動させて前記一対の第３ベルトコンベア１４の前記搬送ベルト１４Ａの搬送位置を制御することにより、前記一対の第３ベルトコンベア１４の前記搬送ベルト１４Ａ上の第２のタイヤ位置Ｐ２に、タイヤＴを移動させる。当該第２のタイヤ位置Ｐ２は、前記第１のタイヤ位置Ｐ１とは別の位置である。当該第２のタイヤ位置Ｐ２は、前記グレードマーク（第２のマーク）を打刻するための前記タイヤＴのサイドウォール面における第２のマーキング位置に前記グレードマーキング機構６２（第２のマーキング機構）が前記グレードマークを打刻することができるタイヤＴの位置である。本実施形態においては、図５に示すように、前記第２のタイヤ位置Ｐ２は、前記第１のタイヤ位置Ｐ１から前記搬送方向の下流側に所定の距離だけ離れた位置である。 (c) The control unit 60B of the drive mechanism 60 operates the servo motor 60A to control the transport position of the transport belt 14A of the pair of third belt conveyors 14, thereby the pair of third belt conveyors. The tire T is moved to the second tire position P2 on the 14 conveying belts 14A. The second tire position P2 is a position different from the first tire position P1. The second tire position P2 is the grade marking mechanism 62 (second marking mechanism) at a second marking position on the sidewall surface of the tire T for marking the grade mark (second mark). Is the position of the tire T where the grade mark can be stamped. In the present embodiment, as shown in FIG. 5, the second tire position P2 is a position away from the first tire position P1 by a predetermined distance downstream in the transport direction.
　すなわち、第１のタイヤ位置Ｐ１において前記タイヤＴに対してハイポイントマーキングが施された後、前記一対の第３ベルトコンベア１４は、マーキング後のタイヤＴを、前記第１のタイヤ位置Ｐ１よりも下流側の位置である、グレードマーキングを施すための第２のタイヤ位置Ｐ２に移動させる。前記第２のタイヤ位置Ｐ２は、前記第１のタイヤ位置Ｐ１よりもマーキング部４における出口側に設けられている。 That is, after the high point marking is performed on the tire T at the first tire position P1, the pair of third belt conveyors 14 moves the marked tire T more than the first tire position P1. It moves to the 2nd tire position P2 for giving grade marking which is a downstream position. The second tire position P2 is provided on the exit side of the marking portion 4 with respect to the first tire position P1.
　前記駆動機構６０の制御部６０Ｂは、インクスタンプ方式のグレードマーキング機構６２の第２の刻印装置６２Ａと、前記タイヤＴにおける決定されたグレードのマーキング位置（第２のマーキング位置）とが合致するように前記サーボモータ６０Ａを作動させることにより、前記一対の第３ベルトコンベア１４の前記搬送ベルト１４Ａの搬送位置を調整する。 The control unit 60B of the drive mechanism 60 matches the second marking device 62A of the grade marking mechanism 62 of the ink stamp type with the marking position (second marking position) of the determined grade in the tire T. By operating the servo motor 60A, the transport position of the transport belt 14A of the pair of third belt conveyors 14 is adjusted.
　(d)　前記一対の 第３ベルトコンベア１４上の前記第２のタイヤ位置Ｐ２に前記タイヤＴが移動すると、前記熱転写方式とは異なる打刻方式であるインクスタンプ方式（第２の打刻方式の一例）のグレードマーキング機構６２は、試験が実施されたタイヤＴのサイドウォール面の第２のマーキング位置に、二点目のマーキング、すなわちグレードマーキングを施す。 (d) When the tire T moves to the second tire position P2 on the pair of saddle third belt conveyors 14, an ink stamp method (second stamping method of the second stamping method) is different from the thermal transfer method. The example grade marking mechanism 62 applies a second marking, that is, a grade marking, to the second marking position on the sidewall surface of the tire T on which the test has been performed.
　本発明の前記実施形態に係るタイヤ試験機１及びこれを用いたタイヤＴのマーキング方法では、一つの搬送経路Ｆ上で、前記一対の第３のコンベア１４の搬送ベルト１４Ａの搬送位置が制御され、前記搬送方向に所定の距離をおいた複数箇所（例えば二箇所）において、２種類以上の異なる打刻方式が用いられ、タイヤ試験の結果を示す複数のマークがタイヤＴに打刻される。 In the tire testing machine 1 and the marking method of the tire T using the same according to the embodiment of the present invention, the transport position of the transport belt 14A of the pair of third conveyors 14 is controlled on one transport path F. Two or more different stamping methods are used at a plurality of locations (for example, two locations) at a predetermined distance in the transport direction, and a plurality of marks indicating the results of the tire test are stamped on the tire T.
　本実施形態においては、前記一対の第３ベルトコンベア１４上の前記第１のタイヤ位置Ｐ１において、熱転写方式の前記ハイポイントマーキング機構６１がハイポイントマークをタイヤＴに打刻し、その後、前記第３のコンベア１４が前記タイヤＴを前記第１のタイヤ位置Ｐ１から前記第２のタイヤ位置Ｐ２に移動させ、インクスタンプ方式の前記グレードマーキング機構６２がグレードマークをタイヤＴに打刻する。前記一対の第３ベルトコンベア１４の前記搬送ベルト１４Ａの前記搬送位置は、前記駆動機構６０のサーボモータ６０Ａ及び前記制御部６０Ｂにより制御される。 In the present embodiment, at the first tire position P1 on the pair of third belt conveyors 14, the thermal transfer type high point marking mechanism 61 stamps a high point mark on the tire T, and then the first 3 conveyer 14 moves the tire T from the first tire position P1 to the second tire position P2, and the ink stamp type marking mechanism 62 imprints a grade mark on the tire T. The transport position of the transport belt 14A of the pair of third belt conveyors 14 is controlled by a servo motor 60A of the drive mechanism 60 and the control unit 60B.
　以上、本発明の前記実施形態に係るタイヤ試験機１では、前記一対の第３ベルトコンベア１５がベルトコンベアにより構成されているので、前記タイヤＴの搬送時には、タイヤＴが載せられる面、すなわち前記搬送ベルト１４Ａの表面に対して前記タイヤＴが滑りにくく、マーキング時にもタイヤＴのすべりが発生しにくい。また、従来のローラコンベア方式のコンベアでは、前記タイヤが搬送されるときにタイヤの振動が発生しやすい。一方、前記実施形態に係るタイヤ試験機１における前記ベルトコンベア方式の第３のベルトコンベア１４では、前記タイヤＴが搬送されるときにタイヤの振動が発生しにくく、マーキング位置のずれが発生しにくい。 As described above, in the tire testing machine 1 according to the embodiment of the present invention, since the pair of third belt conveyors 15 is configured by a belt conveyor, when the tire T is transported, the surface on which the tire T is placed, that is, the above-described surface. The tire T is less likely to slip with respect to the surface of the conveyor belt 14A, and the tire T is less likely to slip even during marking. In addition, in a conventional roller conveyor type conveyor, tire vibration is likely to occur when the tire is conveyed. On the other hand, in the third belt conveyor 14 of the belt conveyor system in the tire testing machine 1 according to the embodiment, when the tire T is conveyed, the vibration of the tire hardly occurs and the deviation of the marking position hardly occurs. .
　また、第３ベルトコンベア１４がベルトコンベアにより構成されているので、前記搬送ベルト１４Ａ上に載せられて搬送されるタイヤＴが回転することが抑制される。具体的には次の通りである。 Further, since the third belt conveyor 14 is constituted by a belt conveyor, the rotation of the tire T carried on the conveyor belt 14A is suppressed. Specifically, it is as follows.
　従来の前記ローラコンベアは、タイヤの搬送方向と直交する水平方向の軸を中心に回転可能な複数のローラが搬送方向に間隔をおいて当該搬送方向に並んで構成される。これら複数のローラが回転することで、その上に載せられたタイヤが搬送される。このローラコンベアは、前記搬送方向に間隔をおいて配置された複数のローラが前記タイヤＴを支持する構造を有するので、タイヤＴと前記複数のローラとは、連続的に接触するのではなく、断続的に接触する。一方、本実施形態では、タイヤＴは、前記搬送方向に沿って帯状に延びる当該搬送ベルト１４Ａと連続的に接触する。したがって、タイヤと接するローラの静止摩擦係数がタイヤと接する搬送ベルト１４Ａの静止摩擦係数と大きく異ならなくても、前記タイヤと複数のローラとの摩擦力は、上記のような断続的な接触に起因して、前記タイヤと前記第３のコンベア１４の搬送ベルト１４Ａとの摩擦力よりも小さくなる。したがって、ローラコンベアとタイヤの間ですべりが生じやすくなる。その結果、ローラコンベアを駆動するモータの回転量の制御が精密に行われたとしても、ローラコンベアは、タイヤの搬送量を精密に制御することができない。また、ローラコンベアとタイヤの間ですべりが生じると、ローラコンベア上のタイヤが回転することもある。このため、前記ローラコンベアが用いられる場合には、当該ローラコンベア上でタイヤの径方向位置を正確な位置に調整するために、タイヤの搬送方向の位置を調整する機構（位置調整機構）が別途必要になる。また、前記ローラコンベアが用いられる場合には、周方向におけるタイヤの配置（位相位置）を正確に調整することができず、当該位相位置にはある程度のばらつきが生じる。したがって、前記ローラコンベアが用いられる場合には、前記位相位置にばらつきが生じた状態でタイヤにマーキングが行われる。 The conventional roller conveyor includes a plurality of rollers that are rotatable about a horizontal axis orthogonal to the tire conveyance direction and arranged in the conveyance direction at intervals in the conveyance direction. The plurality of rollers rotate to convey the tire placed thereon. Since this roller conveyor has a structure in which a plurality of rollers arranged at intervals in the conveying direction supports the tire T, the tire T and the plurality of rollers are not in continuous contact, Contact intermittently. On the other hand, in the present embodiment, the tire T is continuously in contact with the conveyor belt 14 </ b> A extending in a strip shape along the conveyance direction. Therefore, even if the static friction coefficient of the roller in contact with the tire is not significantly different from the static friction coefficient of the conveyance belt 14A in contact with the tire, the frictional force between the tire and the plurality of rollers is caused by the intermittent contact as described above. Thus, the frictional force between the tire and the conveyor belt 14A of the third conveyor 14 becomes smaller. Therefore, slippage tends to occur between the roller conveyor and the tire. As a result, even if the rotation amount of the motor that drives the roller conveyor is precisely controlled, the roller conveyor cannot accurately control the tire conveyance amount. In addition, if slip occurs between the roller conveyor and the tire, the tire on the roller conveyor may rotate. For this reason, when the roller conveyor is used, a mechanism (position adjustment mechanism) for adjusting the position in the tire conveyance direction is separately provided to adjust the radial position of the tire on the roller conveyor to an accurate position. I need it. Further, when the roller conveyor is used, the arrangement (phase position) of the tires in the circumferential direction cannot be accurately adjusted, and some variation occurs in the phase position. Therefore, when the roller conveyor is used, marking is performed on the tire in a state where the phase position varies.
　これに対し、前記実施形態のようにベルトコンベア方式の前記一対の第３のコンベア１４では、前記ローラコンベアに比べてタイヤＴのすべりが生じにくいので、前記駆動機構６０が前記第３のコンベア１４の搬送ベルト１４Ａの搬送位置（搬送量）の制御を精密に行うことにより、マーキング装置１５に対するタイヤＴの相対位置、具体的には、タイヤＴの前記径方向位置及び周方向におけるタイヤＴの配置（位相位置）を精密に制御することができる。 On the other hand, in the pair of third conveyors 14 of the belt conveyor type as in the embodiment, the slippage of the tire T is less likely to occur as compared with the roller conveyor, so that the drive mechanism 60 is used for the third conveyor 14. By precisely controlling the transport position (transport amount) of the transport belt 14A, the relative position of the tire T with respect to the marking device 15, specifically, the radial position of the tire T and the arrangement of the tire T in the circumferential direction (Phase position) can be precisely controlled.
　前記ローラコンベアを用いる場合のタイヤの搬送方向の前記位置調整機構は、例えば位置決め用ストッパを備える。当該位置決め用ストッパは、タイヤの搬送方向への移動を阻止する阻止位置と、前記タイヤの搬送方向への移動を許容する許容位置との間で移動可能に構成される。前記ローラコンベアを用いる方式では、上記のような位置調整機構が必要になる。これは、上述したすべりが生じやすいことと、タイヤのサイズが変わるとタイヤのサイドウォール面におけるマーキング位置も変わることに起因している。すなわち、当該マーキング位置は、前記サイドウォール面のうち、外周位置から径方向内側に所定の寸法だけ隔てた位置であり、当該所定の寸法は、タイヤのサイズによって変わる。前記ローラコンベアを用いる方式では、上記のような位置調整機構を用いて前記タイヤの位置を正確に決める必要がある。 The position adjusting mechanism in the tire transport direction when using the roller conveyor includes, for example, a positioning stopper. The positioning stopper is configured to be movable between a blocking position that prevents movement of the tire in the conveyance direction and an allowable position that allows movement of the tire in the conveyance direction. In the system using the roller conveyor, the position adjusting mechanism as described above is required. This is due to the fact that the above-described slip is likely to occur and that the marking position on the sidewall surface of the tire also changes as the tire size changes. That is, the marking position is a position on the sidewall surface that is separated from the outer peripheral position by a predetermined dimension radially inward, and the predetermined dimension varies depending on the tire size. In the method using the roller conveyor, it is necessary to accurately determine the position of the tire using the position adjusting mechanism as described above.
　一方、前記実施形態に係るタイヤ試験機１では、前記一対の第３のベルトコンベア１４がベルコンベア方式であるので、搬送ベルト１４Ａに対するタイヤの滑りがほぼ生じない。このため、前記駆動機構６０が第３のコンベア１４の搬送ベルト１４Ａの搬送位置（搬送量）を精密に制御することにより、マーキング装置１５とタイヤＴのマークを行うべき位置との相対位置が常に同じとなるように前記タイヤＴを停止させることができる。このため、マーキング機構４において、上記のような位置調整機構が不要になる。 On the other hand, in the tire testing machine 1 according to the embodiment, since the pair of third belt conveyors 14 is a bell conveyor system, slip of the tire with respect to the conveyor belt 14A hardly occurs. For this reason, the drive mechanism 60 precisely controls the conveyance position (conveyance amount) of the conveyance belt 14A of the third conveyor 14, so that the relative position between the marking device 15 and the position where the tire T is to be marked is always set. The tire T can be stopped so as to be the same. For this reason, the marking mechanism 4 does not require the position adjustment mechanism as described above.
　前記実施形態では、サーボモータ６０Ａ及びそれを制御する制御部６０Ｂがベルトコンベア方式の第３のベルトコンベア１４の搬送ベルト１４Ａの搬送位置を精密に調整することができるので、タイヤの停止位置（位置決め）を正確且つ自在に制御することができる。このことは、タイヤＴに対して正確な位置にマーキングを施すことを可能にする。 In the above-described embodiment, the servo motor 60A and the control unit 60B that controls the servo motor 60A can precisely adjust the transport position of the transport belt 14A of the third belt conveyor 14 of the belt conveyor system. ) Can be controlled accurately and freely. This makes it possible to mark the exact position with respect to the tire T.
　前記実施形態では、グレードマーキングのマーキング位置は、ハイポイントマーキングのマーキング位置に対して、同じ位相であってもよく、例えば位相差が１８０°となる位相であってもよい。 In the above embodiment, the marking position of the grade marking may be the same phase as the marking position of the high point marking, for example, a phase where the phase difference is 180 °.
　また、前記実施形態では、上記のようにタイヤの位置を精密に調整可能であるので、ハイポイントマーキング機構６１においては、タイヤＴの径方向の位置決め機構（センタリング機構）が不要である。また、グレードマーキング機構６２においても、タイヤの位置決め用ストッパ（上述の位置調整機構）や、タイヤの位置を微調整する機能が不要である。このことは、タイヤ試験機１を簡素化することを可能にする。これにより、タイヤ試験機１のメンテナンス時にかかる作業負荷が大幅に低減されることとなる。 Further, in the above-described embodiment, since the position of the tire can be precisely adjusted as described above, the high point marking mechanism 61 does not require a positioning mechanism (centering mechanism) in the radial direction of the tire T. The grade marking mechanism 62 also does not require a tire positioning stopper (the above-described position adjusting mechanism) or a function for finely adjusting the tire position. This makes it possible to simplify the tire testing machine 1. Thereby, the work load applied at the time of maintenance of the tire testing machine 1 is greatly reduced.
　また、前記実施形態に係るタイヤ試験機１では、スピンドルユニット９に保持されたタイヤＴに対してハイポイントマーキングが施されるのではなく、前記ハイポイントマーキング及びグレードマーキングの両方が前記第３のベルトコンベア１４の搬送ベルト１４Ａ上に保持されたタイヤＴに対して施される。このことは、タイヤ試験におけるサイクルタイムを短縮することを可能にする。つまり、サイクルタイムの短縮という観点での装置の性能を向上させることができる。 In the tire testing machine 1 according to the embodiment, the tire T held by the spindle unit 9 is not subjected to the high point marking, but both the high point marking and the grade marking are the third point. It is applied to the tire T held on the conveyor belt 14A of the belt conveyor 14. This makes it possible to shorten the cycle time in the tire test. That is, the performance of the apparatus in terms of shortening the cycle time can be improved.
　また、ハイポイントマーキング機構とグレードマーキング機構は、一定の大きさがある。したがって、仮に、ハイポイントマークとグレードマークとをタイヤに対して搬送方向におけるほぼ同じ位置において施す場合、前記ハイポイントマーキング機構とグレードマーキング機構とが互いに接触しないようにするための退避機構を、各マーキング機構に設ける必要がある。このことは、タイヤ試験機の装置構成を複雑にする。 Also, the high point marking mechanism and the grade marking mechanism have a certain size. Therefore, if the high point mark and the grade mark are applied to the tire at substantially the same position in the transport direction, a retracting mechanism for preventing the high point marking mechanism and the grade marking mechanism from contacting each other is provided. It is necessary to provide the marking mechanism. This complicates the equipment configuration of the tire testing machine.
　前記実施形態では、前記第１のマーキング機構６１は、前記タイヤＴに対して前記第１のマークを打刻する第１の刻印装置を有し、前記第２のマーキング機構６２は、前記タイヤに対して前記第２のマークを打刻する第２の刻印装置を有する。前記第２の刻印装置が前記タイヤＴに対して前記第２のマークを打刻するときの当該第２の刻印装置の位置は、前記第１の刻印装置が前記タイヤＴに対して前記第１のマークを打刻するときの当該第１の刻印装置の位置から前記搬送方向に所定の距離を隔てた位置である。前記所定の距離は、前記第１の刻印装置と前記第２の刻印装置とが互いに接触することのない距離である。この態様では、上記のような退避機構が不要となるので、タイヤ試験機の装置構成が複雑になるのを抑制できる。 In the embodiment, the first marking mechanism 61 includes a first marking device that stamps the first mark on the tire T, and the second marking mechanism 62 is provided on the tire. On the other hand, a second marking device for stamping the second mark is provided. The position of the second marking device when the second marking device stamps the second mark on the tire T is determined by the first marking device relative to the tire T. This is a position spaced a predetermined distance in the transport direction from the position of the first marking device when marking the mark. The predetermined distance is a distance at which the first marking device and the second marking device do not contact each other. In this aspect, since the retraction mechanism as described above is not necessary, it is possible to prevent the apparatus configuration of the tire testing machine from becoming complicated.
　なお、今回開示された実施形態はすべての点で例示であって制限的なものではないと考えられるべきである。 In addition, it should be thought that embodiment disclosed this time is an illustration and restrictive at no points.
　前記実施形態では、第１の打刻方式が熱転写方式であり、第２の打刻方式がインクスタンプ方式である場合を例示したが、前記第１の打刻方式及び前記第２の打刻方式は、互いに異なる打刻方式であれば前記実施形態に限られず、他の打刻方式であってもよい。互いに異なる打刻方式を採用することは、次のような利点を有する。例えば、前記第１の打刻方式により打刻されたマークの消去特性と、前記第２の打刻方式により打刻されたマークの消去特性とを互いに異ならせることができる。具体的に、一方の打刻方式として前記マークを消去困難な方式が採用され、他方の打刻方式として前記マークを消去容易な方式が採用されることができる。このように互いに異なる打刻方式を採用することにより、マーキングの用途に応じた打刻方式の使い分けが容易となる。好ましくは、第１の打刻方式を熱転写方式とし、第２の打刻方式としてインクスタンプ方式等の他の打刻方式としてもよく、この場合、次のような付加的な利点がある。すなわち、熱転写方式は速乾性に優れているので、第１の打刻方式を熱転写方式とすることにより、第２の打刻方式によるマーキング時において、熱転写方式で打刻された第１のマークに対して装置の一部などが擦れるなどの外力が作用した場合であっても、前記第１のマークの剥離が発生することを抑制できる。 In the embodiment, the case where the first stamping method is the thermal transfer method and the second stamping method is the ink stamp method is exemplified, but the first stamping method and the second stamping method are exemplified. Is not limited to the above-described embodiment as long as it is a different stamping method, and other stamping methods may be used. Employing different stamping methods has the following advantages. For example, it is possible to make the erasure characteristic of the mark stamped by the first stamping method different from the erase characteristic of the mark stamped by the second stamping method. Specifically, a method that makes it difficult to erase the mark can be employed as one of the stamping methods, and a method that can easily erase the mark can be employed as the other stamping method. By employing different stamping methods in this way, it becomes easy to properly use the stamping method according to the marking application. Preferably, the first stamping method may be a thermal transfer method, and the second stamping method may be another stamping method such as an ink stamp method. In this case, there are the following additional advantages. In other words, since the thermal transfer method is excellent in quick-drying, the first marking method is the thermal transfer method, so that the first mark stamped by the thermal transfer method is used for marking by the second stamping method. Even when an external force such as a part of the apparatus rubbing acts on the first mark, it is possible to suppress the peeling of the first mark.
　前記実施形態では、第１のマークがハイポイントマークであり、第２のマークがグレードマークである場合を例示したが、前記第１のマーク及び前記第２のマークは、前記実施形態に限られず、他のマークであってもよい。好ましくは、第１のマークをハイポイントマークとし、第２のマークをグレードマーク等の他のマークとしてもよく、この場合、次のような付加的な利点がある。すなわち、ハイポイントマークは他のマークと比べてマーキング位置の精度を求められる。そこで、第２のマーキング機構によるマーキングよりも前に、第１のマーキング機構によるハイポイントマークをタイヤに施すことにより、ハイポイントマークを施すまでのタイヤの搬送距離及び搬送時間を可及的に短くすることができる。このことは、第１のマーキング機構までのタイヤの搬送時におけるマーキング位置の不慮のずれを可及的に防止することができる。 In the above embodiment, the case where the first mark is a high point mark and the second mark is a grade mark is exemplified. However, the first mark and the second mark are not limited to the above embodiment. Other marks may be used. Preferably, the first mark may be a high point mark and the second mark may be another mark such as a grade mark. In this case, there are the following additional advantages. That is, the high point mark is required to have a higher marking position accuracy than other marks. Therefore, by carrying the high point mark by the first marking mechanism on the tire before the marking by the second marking mechanism, the conveyance distance and the conveyance time of the tire until the high point mark is applied are shortened as much as possible. can do. This can prevent as much as possible an accidental shift of the marking position during conveyance of the tire to the first marking mechanism.
　特に、今回開示された実施形態において、明示的に開示されていない事項、例えば、運転条件や操業条件、各種パラメータ、構成物の寸法、重量、体積などは、当業者が通常実施する範囲を逸脱するものではなく、通常の当業者であれば、容易に想定することが可能な値を採用している。 In particular, in the embodiment disclosed this time, matters that are not explicitly disclosed, for example, operating conditions and operating conditions, various parameters, dimensions, weights, volumes, and the like of a component deviate from a range that a person skilled in the art normally performs. Instead, values that can be easily assumed by those skilled in the art are employed.
　以上のように、タイヤ試験の結果を示すマークをタイヤにおける正確な位置に施すと共に、タイヤ試験のサイクルタイムを短縮することができるタイヤ試験機及び当該タイヤ試験機を用いたタイヤのマーキング方法が提供される。 As described above, a tire testing machine capable of providing a mark indicating the result of the tire test at an accurate position in the tire and reducing the cycle time of the tire test, and a tire marking method using the tire testing machine are provided. Is done.
　提供されるのは、タイヤ試験機であって、タイヤ試験が実施されてスピンドルユニットから取り外されたタイヤを搬送方向の下流側へ搬送するための搬送ベルトであって無限軌道を形成するループ状の帯体である搬送ベルトを有するベルトコンベアと、前記搬送ベルトを駆動する駆動部と前記搬送ベルトの搬送位置を制御するように前記駆動部を作動させる制御部とを有する駆動機構と、前記搬送ベルト上の前記タイヤに対して前記タイヤ試験の結果を示す第１のマークを第１の打刻方式を用いて打刻するための第１のマーキング機構と前記搬送ベルト上の前記タイヤに対して前記タイヤ試験の結果を示す第２のマークを前記第１の打刻方式とは異なる第２の打刻方式を用いて打刻するための第２のマーキング機構とを含むマーキング装置と、を備える。 Provided is a tire testing machine, which is a transport belt for transporting a tire that has been subjected to a tire test and removed from a spindle unit to the downstream side in the transport direction, and has a loop shape that forms an endless track. A belt conveyor having a conveyor belt as a belt, a drive mechanism having a drive section for driving the conveyor belt, and a controller for operating the drive section to control the transport position of the conveyor belt; and the conveyor belt A first marking mechanism for stamping a first mark indicating a result of the tire test on the tire on the top using a first stamping method and the tire on the transport belt A marking device including a second marking mechanism for stamping a second mark indicating a result of a tire test by using a second stamping method different from the first stamping method. , Comprising a.
　このタイヤ試験機の前記マーキング装置は、前記タイヤ試験が実施されて前記スピンドルから取り外されたタイヤであって前記搬送ベルト上のタイヤに対して第１のマークと第２のマークの両方を施す。このことは、前記スピンドルに装着された状態のタイヤに対してマークが施される場合と比較して、タイヤ試験のサイクルタイムを短縮することが可能になる。また、前記タイヤに対して第１のマークと第２のマークを施すために前記タイヤを搬送するコンベアは、前記ローラコンベアではなく、無限軌道を形成するループ状の帯体である搬送ベルトを有するベルトコンベアであり、当該搬送ベルトの搬送位置は前記駆動機構の前記制御部によって制御される。当該ベルトコンベアの搬送ベルトは、前記搬送方向の上流側の端部から下流側の端部まで帯状に連続するものであるので、前記ローラコンベアの複数のローラに比べて、タイヤＴを安定して保持することができ、また、搬送ベルトとタイヤとの間ですべりが生じにくい。これにより、前記タイヤ試験機では、タイヤ試験の結果を示すマークをタイヤにおける正確な位置にマーキングすることができる。 The marking device of the tire testing machine is a tire that has been removed from the spindle after the tire test has been performed, and applies both the first mark and the second mark to the tire on the conveyor belt. This makes it possible to shorten the cycle time of the tire test as compared with the case where the mark is applied to the tire mounted on the spindle. In addition, the conveyor that conveys the tire in order to apply the first mark and the second mark to the tire has a conveyor belt that is not a roller conveyor but a loop-shaped belt that forms an endless track. It is a belt conveyor, and the conveyance position of the conveyance belt is controlled by the control unit of the drive mechanism. Since the conveyor belt of the belt conveyor is continuous in a belt shape from the upstream end to the downstream end in the transport direction, the tire T is more stable than the plurality of rollers of the roller conveyor. It can be held, and slippage is unlikely to occur between the conveyor belt and the tire. Thereby, in the said tire testing machine, the mark which shows the result of a tire test can be marked on the exact position in a tire.
　提供される方法は、前記タイヤ試験機を用いて前記タイヤに前記第１のマーク及び前記第２のマークを打刻するためのタイヤのマーキング方法である。前記タイヤのマーキング方法は、以下に示すステップ(a)～(d)の順に実施される。 The provided method is a tire marking method for stamping the first mark and the second mark on the tire using the tire testing machine. The tire marking method is performed in the order of steps (a) to (d) shown below.
　(a)　前記タイヤの表面のうち前記第１のマークを打刻するための第１のマーキング位置に前記第１のマーキング機構が前記第１のマークを打刻することができるように前記駆動機構の前記制御部が前記駆動部を作動させて前記搬送ベルトの前記搬送位置を制御することにより前記搬送ベルト上の前記タイヤを第１のタイヤ位置に移動させる。 (a) The drive mechanism so that the first marking mechanism can stamp the first mark at a first marking position for stamping the first mark on the surface of the tire. The control unit of the control unit operates the driving unit to control the transport position of the transport belt, thereby moving the tire on the transport belt to the first tire position.
　(b)　前記第１のマーキング機構が前記第１のタイヤ位置に移動した前記タイヤの前記第１のマーキング位置に前記第１のマークを打刻する。 (B) The first marking mechanism stamps the first mark at the first marking position of the tire that has moved to the first tire position.
　(c)　前記タイヤの表面のうち 前記第２のマークを打刻するための第２のマーキング位置に前記第２のマーキング機構が前記第２のマークを打刻することができるように前記駆動機構の前記制御部が前記駆動部を作動させて前記搬送ベルトの前記搬送位置を制御することにより前記搬送ベルト上の前記タイヤを前記第１のタイヤ位置に対して前記搬送方向に所定の距離だけ離れた第２のタイヤ位置に移動させる。 (c) The drive mechanism so that the second marking mechanism can stamp the second mark at the second marking position for stamping the second mark on the surface of the tire. The control unit of the control unit operates the driving unit to control the transport position of the transport belt, thereby separating the tire on the transport belt by a predetermined distance in the transport direction with respect to the first tire position. To the second tire position.
　(d)　前記第２のマーキング機構が前記第２のタイヤ位置に移動した前記タイヤの前記第２のマーキング位置に前記第２のマークを打刻する。 (D) The second marking mechanism stamps the second mark at the second marking position of the tire that has moved to the second tire position.
　このタイヤのマーキング方法は、前記タイヤ試験機を用いて前記タイヤに前記第１のマーク及び前記第２のマークを打刻するので、タイヤ試験のサイクルタイムを短縮することが可能になるとともに、タイヤ試験の結果を示すマークをタイヤにおける正確な位置にマーキングすることができる。また、当該マーキング方法では、前記搬送ベルト上の第１のタイヤ位置に移動したタイヤに対して第１のマークが施され、前記第１のタイヤ位置に対して前記搬送方向に所定の距離だけ離れた第２のタイヤ位置に移動したタイヤに対して第２のマークが施される。したがって、第１のマーキング機構と第２のマーキング機構とが互いに接触しないようにするための前記退避機構を、各マーキング機構に設ける必要がない。このことは、タイヤ試験機の装置構成が複雑になるのを抑制できる。 In the tire marking method, since the first mark and the second mark are imprinted on the tire using the tire testing machine, the cycle time of the tire test can be shortened, and the tire A mark indicating the result of the test can be marked at an accurate position on the tire. Further, in the marking method, a first mark is applied to the tire moved to the first tire position on the transport belt, and the tire is moved away from the first tire position by a predetermined distance in the transport direction. A second mark is applied to the tire moved to the second tire position. Therefore, it is not necessary to provide the retraction mechanism for preventing the first marking mechanism and the second marking mechanism from contacting each other. This can prevent the apparatus configuration of the tire testing machine from becoming complicated.

Claims (2)

  1. 　タイヤ試験機であって、
    　タイヤ試験が実施されてスピンドルユニットから取り外されたタイヤを搬送方向の下流側へ搬送するための搬送ベルトであって無限軌道を形成するループ状の帯体である搬送ベルトを有するベルトコンベアと、
    　前記搬送ベルトを駆動する駆動部と前記搬送ベルトの搬送位置を制御するように前記駆動部を作動させる制御部とを有する駆動機構と、
    　前記搬送ベルト上の前記タイヤに対して前記タイヤ試験の結果を示す第１のマークを第１の打刻方式を用いて打刻するための第１のマーキング機構と前記搬送ベルト上の前記タイヤに対して前記タイヤ試験の結果を示す第２のマークを前記第１の打刻方式とは異なる第２の打刻方式を用いて打刻するための第２のマーキング機構とを含むマーキング装置と、を備えるタイヤ試験機。     A tire testing machine,
    A belt conveyor having a conveyor belt that is a loop belt that forms an endless track, and is a conveyor belt for conveying a tire that has been subjected to a tire test and removed from the spindle unit to the downstream side in the conveyance direction;
    A drive mechanism having a drive unit for driving the transport belt and a control unit for operating the drive unit to control the transport position of the transport belt;
    A first marking mechanism for stamping a first mark indicating a result of the tire test on the tire on the transport belt using a first stamping method and the tire on the transport belt A marking device including a second marking mechanism for stamping a second mark indicating the result of the tire test using a second stamping method different from the first stamping method; Tire testing machine equipped with.
  2. 　請求項１に記載のタイヤ試験機を用いて前記タイヤに前記第１のマーク及び前記第２のマークを打刻するためのタイヤのマーキング方法であって、
    　 前記タイヤの表面のうち前記第１のマークを打刻するための第１のマーキング位置に前記第１のマーキング機構が前記第１のマークを打刻することができるように前記駆動機構の前記制御部が前記駆動部を作動させて前記搬送ベルトの前記搬送位置を制御することにより前記搬送ベルト上の前記タイヤを第１のタイヤ位置に移動させ、
    　前記第１のマーキング機構が前記第１のタイヤ位置に移動した前記タイヤの前記第１のマーキング位置に前記第１のマークを打刻し、
    　前記タイヤの表面のうち前記第２のマークを打刻するための第２のマーキング位置に前記第２のマーキング機構が前記第２のマークを打刻することができるように前記駆動機構の前記制御部が前記駆動部を作動させて前記搬送ベルトの前記搬送位置を制御することにより前記搬送ベルト上の前記タイヤを前記第１のタイヤ位置に対して前記搬送方向に所定の距離だけ離れた第２のタイヤ位置に移動させ、
    　前記第２のマーキング機構が前記第２のタイヤ位置に移動した前記タイヤの前記第２のマーキング位置に前記第２のマークを打刻する、タイヤのマーキング方法。     A tire marking method for imprinting the first mark and the second mark on the tire using the tire testing machine according to claim 1,
    The control of the drive mechanism so that the first marking mechanism can stamp the first mark at a first marking position for stamping the first mark on the surface of the tire. Moving the tire on the conveyor belt to the first tire position by operating the drive unit to control the conveyance position of the conveyor belt;
    The first marking mechanism imprints the first mark at the first marking position of the tire moved to the first tire position;
    The control of the drive mechanism so that the second marking mechanism can stamp the second mark at a second marking position for stamping the second mark on the surface of the tire. A second unit that operates the drive unit to control the transport position of the transport belt, whereby the tire on the transport belt is separated from the first tire position by a predetermined distance in the transport direction. Move to the tire position
    A tire marking method, wherein the second marking mechanism impresses the second mark at the second marking position of the tire moved to the second tire position.
PCT/JP2019/009253 2018-03-29 2019-03-08 Tire testing machine and tire marking method WO2019188109A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61209336A (en) * 1985-03-13 1986-09-17 Kobe Steel Ltd High point and grade marking apparatus for tire
JP2000329658A (en) * 1999-05-18 2000-11-30 Kokusai Keisokki Kk Marking device and test line using the same
JP2001511254A (en) * 1997-01-24 2001-08-07 イリノイ トゥール ワークス，インコーポレイティド Road wheel assembly for tire inspection system
JP2002122500A (en) * 2000-10-12 2002-04-26 Yamato Scale Co Ltd Tire marking device
JP2015010860A (en) * 2013-06-27 2015-01-19 株式会社神戸製鋼所 Marking device
KR20160118401A (en) * 2015-04-01 2016-10-12 한국타이어 주식회사 Tire marking device with dual marking function

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS61209336A (en) * 1985-03-13 1986-09-17 Kobe Steel Ltd High point and grade marking apparatus for tire
JP2001511254A (en) * 1997-01-24 2001-08-07 イリノイ トゥール ワークス，インコーポレイティド Road wheel assembly for tire inspection system
JP2000329658A (en) * 1999-05-18 2000-11-30 Kokusai Keisokki Kk Marking device and test line using the same
JP2002122500A (en) * 2000-10-12 2002-04-26 Yamato Scale Co Ltd Tire marking device
JP2015010860A (en) * 2013-06-27 2015-01-19 株式会社神戸製鋼所 Marking device
KR20160118401A (en) * 2015-04-01 2016-10-12 한국타이어 주식회사 Tire marking device with dual marking function

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