TW201903377A - Tire holding apparatus, tire testing system including the same, and control method of tire holding apparatus - Google Patents

Abstract

In the tire removal process, a sandwiching step and a tire removal step are executed. In the sandwiching step, while a lower rim (33 d) is fitted in the tire (T) and an upper support (42) is in contact with an upper sidewall (Twu) of the tire (T), a lower support 22) is brought into contact with a lower sidewall (Twd) of the tire (T), and the tire (T) is sandwiched between the upper support body (42) and the lower support body (22). In the tire removal step, while continuing the sandwiching step, the lower rim (33 d) is moved vertically downward relative to the lower support (44) and the tire (T) is peeled off from the lower rim (33 d).

Description

 Tire holding device, tire testing system provided with tire holding device, and control method of tire holding device  

The present invention relates to a tire holding device that holds a tire from above and below using an upper steel ring and a lower steel ring, a tire testing device including the tire holding device, and a tire holding device control method.

In the case of manufacturing a rubber tire for use in a vehicle or the like, in order to secure the quality of the tire, various tests were performed on the tire in a state where the tire was virtually inflated by air by a test device. In such a tire testing system, after the belt conveyer is transported to the test area, the upper rim and the lower rim disposed in the test area are sandwiched into the lip of the tire. (bead part), thereby keeping the tires. Then, various tests for the tire were performed while the tire was kept. After various tests have been performed, the tire is removed from the upper and lower steel rings and transported to the downstream side by a belt conveyor.

In the following Patent Document 1, there has been disclosed a method of removing a tire from an upper steel ring and a lower steel ring after performing various tests on the tire. In this method, the upper steel ring and the belt conveyor are integrally moved toward the vertical direction in the state in which the upper steel ring and the belt conveyor are sandwiched from the upper and lower sides by the upper steel ring and the belt conveyor, firstly, from the lower steel. Remove the tires from the ring. When the tire is removed from the lower rim, the rise of the belt conveyor is stopped. On the other hand, the rise of the upper steel ring continues. As a result, the tire that has been embedded in the upper steel ring rises as the upper steel ring rises and is away from the belt conveyor. During the ascent of the tire, a tire stripper is attached to the upper side wall of the tire. The upper steel ring is also continuously rising. When the upper rim is relatively raised against the tire detacher, the tire can be removed from the upper rim.

 [Previous Technical Literature]    [Patent Literature]  

Patent Document 1: Japanese Laid-Open Patent Publication No. 2015-197368

In the method described in Patent Document 1, when the tire is removed from the upper steel ring after the tire is removed from the lower steel ring, the tire is removed from the upper steel ring because the tire is away from the belt conveyor. In an instant, the tires will fall. As a result, the tire will bounce on the belt conveyor. When the tire bounces on the belt conveyor, the tire falls from the belt conveyor, and in some cases the belt conveyor cannot be used to carry the tire. Further, even if the tire does not fall from the belt conveyor, if it does not fall to the position of the belt conveyor, there is a case where the processing is performed after the conveyance by the belt conveyor.

Accordingly, it is an object of the present invention to provide a tire retaining device which can suppress the bounce of the tire when the tire has been detached from the upper rim or the lower rim, and can suppress the horizontal movement of the tire, and has the tire retaining The tire test system of the device and the control method of the tire holding device.

A tire holding device according to a first aspect of the invention for achieving the above object includes: an upper steel ring which is an upper lip portion of a tire which is fitted in a state in which both side walls are oriented in a vertical direction; and a lower steel ring which is disposed in the foregoing a lower side of the upper steel ring, and embedded in the lower lip portion of the tire, and used to hold the tire with the upper steel ring; and an upper support body which is capable of contacting the upper side wall of the tire; and a lower support body And supporting the tire with the lower sidewall of the tire; and a lower support moving mechanism for relatively moving the lower support toward the lower rim in a vertical direction; and a controller for controlling the foregoing The action of the lower support moving mechanism. The controller performs a clamping step and a tire removing step; the clamping step is that the upper steel ring has been detached from the upper lip portion of the tire, and the lower steel ring is embedded under the tire a lip portion, wherein the lower support body is in contact with the upper side wall of the tire, the lower support body is brought into contact with the lower side wall of the tire, and the tire is sandwiched by the lower support body and the upper support body; In the tire removing step, while the tire is sandwiched between the lower support and the upper support, the lower support moving mechanism is driven to face the lower support toward the lower support. The body moves relatively, and the aforementioned tire is detached from the aforementioned lower steel ring.

In the tire holding device, the tire is detached from the lower rim in a state where the tire has been sandwiched by the lower support and the upper support in the tire unloading step. Therefore, in the process of detaching the tire from the lower steel ring, it is possible to suppress the tire from bounce off the lower support. Further, in the tire holding device, since the tire is detached from the lower rim in a state in which the tire has been sandwiched by the lower support and the upper support, it is also possible to prevent the tire from being detached. The tire moves in the horizontal direction.

A tire holding device according to a second aspect of the invention, which is the tire retaining device of the first aspect, further comprising: a tire detacher having the upper support body and the upper support body An upper support moving mechanism that relatively moves the aforementioned upper rim toward the vertical direction. The controller performs a detaching step at least before the tire unloading step, and the detaching step drives the tire detacher from a state in which the tire is held by the upper steel ring and the lower steel ring, and The upper support is relatively vertically moved toward the upper rim so that the upper support contacts the upper side wall of the tire, and the tire and the upper support are vertically oriented opposite to the upper rim. The ground is moved to detach the aforementioned tire from the aforementioned upper steel ring.

In the tire holding device, the tire is detached from the upper steel ring in a state where the tire has been sandwiched by the upper support and the lower steel ring in the detaching step. Therefore, the tire can be detached from the upper steel ring while the tire has been stabilized.

A tire holding device according to a third aspect of the invention for achieving the above object includes: an upper steel ring which is an upper lip portion of a tire which is fitted in a state in which both side walls are oriented in a vertical direction; and a lower steel ring which is disposed in the foregoing a lower side of the upper steel ring, and embedded in the lower lip portion of the tire, and used to hold the tire with the upper steel ring; and a steel ring moving mechanism for causing the upper steel ring to face the lower steel ring in a vertical direction Moving relatively; and a lower support that is in contact with the lower sidewall of the tire and supporting the tire; and a tire detacher having an upper support that is engageable with the upper sidewall of the tire, and the upper support An upper support moving mechanism that relatively moves the support body toward the upper rim in a vertical direction; and a controller that controls the respective movements of the rim moving mechanism and the tire detacher. The controller performs a clamping step and a tire removing step; the clamping step is such that the lower steel ring has been detached from the lower lip portion of the tire, and the upper steel ring is embedded in the upper lip of the tire. And the tire detacher is driven in a state in which the lower support body is in contact with the lower side wall of the tire, so that the upper support body contacts the upper side wall of the tire, and the upper support body and the lower support body are used. The tire is inserted into the tire; the tire removing step is continued while the tire is sandwiched between the lower support and the upper support, and the rim moving mechanism is driven to face the upper rim The aforementioned upper support is relatively vertically moved, and the aforementioned tire is detached from the aforementioned upper steel ring.

In the tire holding device, the tire is detached from the upper steel ring in a state where the tire has been sandwiched by the lower support and the upper support in the tire unloading step. Therefore, in the process of detaching the tire from the upper steel ring, it is possible to suppress the tire from bounce off the lower support. Further, in the tire holding device, since the tire is detached from the upper steel ring in a state in which the tire has been sandwiched by the lower support body and the upper support body, it is also possible to prevent the tire from being detached during the detachment process. The tire moves in the horizontal direction.

A tire holding device according to a fourth aspect of the present invention, characterized in that the tire holding device according to the third aspect of the present invention, further comprising: a lower support moving mechanism that faces the lower support body in a vertical direction The lower steel ring moves relatively. The controller performs a detaching step at least before the tire unloading step, and the detaching step drives the lower support moving mechanism from a state in which the tire is held by the upper rim and the lower rim. And moving the lower support body vertically upward to the lower steel ring to make the lower support body contact the lower side wall of the tire, and the tire and the lower support body face vertically upward to the lower steel The ring moves relatively to detach the aforementioned tire from the aforementioned lower steel ring.

In the tire holding device, the tire is detached from the lower steel ring in a state where the tire has been sandwiched by the lower support and the upper steel ring in the detaching step. Therefore, the tire can be detached from the lower steel ring while the tire has been stabilized.

A tire holding device according to a fifth aspect of the invention of the present invention, which is the second aspect to the fourth aspect, wherein the upper support moving mechanism is Air cylinder. The pneumatic cylinder has a piston rod extending in a vertical direction, and a cylinder case for allowing the first end of the piston rod to enter, and the piston rod is oriented in a vertical direction by air pressure. advance and retreat. The aforementioned upper support body is fixed to the second end of the piston rod.

In the tire holding device, as long as the air of an appropriate pressure is supplied to the cylinder casing in advance, the upper support can be used to reliably press the tire belonging to the elastic body. Therefore, by using the pneumatic cylinder as the upper support moving mechanism, it is easy to control the upper support moving mechanism.

A tire holding device according to a sixth aspect of the invention, which is the fifth aspect of the invention, further comprising: an air pressure regulator that adjusts an air pressure in the cylinder housing. In the controller, the air pressure in the cylinder housing in the step of clamping is formed by the air pressure regulator to be lower than the air pressure in the cylinder housing in the tire removing step.

In the tire holding device, by adjusting the pressure in the cylinder housing, the upper support can be strongly pressed against the tire in the sandwiching step, and a part of the tire can be largely deformed.

A tire holding device according to a seventh aspect of the invention for achieving the above object is a tire holding device according to any one of the foregoing first aspect to the sixth aspect, wherein the upper steel ring and the lower steel The circles are all arranged with the axis extending in the vertical direction as the center. The upper support body has a first upper support body and a second upper support body which are separated from each other in the radial direction with respect to the aforementioned axis. The lower support body has a first lower support body and a second lower support body which are separated from each other in the radial direction with respect to the aforementioned axis. Further comprising: an upper support spacing changing mechanism for changing a radial distance between the first upper support and the second upper support; and a lower support spacing changing mechanism for changing the first lower support The radial distance between the body and the aforementioned second lower support.

In the tire holding device, even when the tire size is changed, the first upper support body and the second upper support body can be brought into contact with the upper side wall of the tire, and the first lower support body and the second lower body can be made The lower support is in contact with the lower side wall of the tire.

A tire holding device according to an eighth aspect of the invention of the present invention is the tire retaining device of any one of the first aspect to the seventh aspect, wherein the lower support body is placed The tire having the two side walls facing the vertical direction and carrying the tire in the horizontal direction.

A tire testing system according to a ninth aspect of the invention for achieving the foregoing object, comprising: a tire holding device of any one of the first aspect to the eighth aspect; and a tire measuring device The aforementioned tires held by the upper steel ring and the lower steel ring are subjected to various measurements.

A method of controlling a tire holding device according to a tenth aspect of the invention for achieving the above object is a control method of the tire holding device below.

The tire holding device includes: an upper steel ring which is an upper lip portion of the tire which is fitted in a state in which the both side walls are oriented in a vertical direction; and a lower steel ring which is disposed on a lower side of the upper steel ring and is embedded in the tire a lower lip portion, and the upper steel ring is used to hold the tire; and an upper support body which is connectable to the upper side wall of the tire; and a lower support body which is in contact with the lower side wall of the tire Supporting the tire; and a lower support moving mechanism for relatively moving the lower support toward the lower rim in a vertical direction.

In the control method, the clamping step and the tire removing step are performed; the clamping step is such that the upper steel ring has fallen off from the upper lip portion of the tire, and on the other hand, the lower steel ring has been embedded in the tire. a lower lip portion, wherein the lower support body is in contact with the upper side wall of the tire, the lower support body is brought into contact with the lower side wall of the tire, and the tire is sandwiched by the lower support body and the upper support body; In the tire removing step, while the tire is sandwiched between the lower support and the upper support, the lower support moving mechanism is driven to face the lower support toward the lower support. The body moves relatively, and the aforementioned tire is detached from the aforementioned lower steel ring.

A method of controlling a tire holding device according to a tenth aspect of the invention, wherein the tire holding device includes a tire detacher, and a method of controlling the tire holding device according to the tenth aspect of the invention. The upper support moving mechanism includes the upper support and the upper support moving relative to the upper rim in the vertical direction.

In the control method, the detaching step is performed at least before the tire unloading step, the detaching step is to drive the tire detacher from the state in which the tire is held by the upper rim and the lower rim. And moving the upper support toward the upper steel ring relatively vertically, so that the upper support body contacts the upper side wall of the tire, and the tire and the upper support body face vertically downward with respect to the upper steel The ring moves relatively to detach the aforementioned tire from the aforementioned upper steel ring.

A method of controlling a tire holding device according to a twelfth aspect of the invention for achieving the above object is a method of controlling the tire holding device described below.

The tire holding device includes: an upper steel ring which is an upper lip portion of the tire which is fitted in a state in which the both side walls are oriented in a vertical direction; and a lower steel ring which is disposed on a lower side of the upper steel ring and is embedded in the tire a lower lip portion for holding the tire with the upper steel ring; and a steel ring moving mechanism for relatively moving the upper steel ring toward the lower steel ring in a vertical direction; and a lower support body, which is a lower side wall of the tire to meet and support the tire; and a tire detacher having an upper support body connectable to the upper side wall of the tire, and the upper support body facing the upper steel ring in a vertical direction Moving upper support moving mechanism.

In the control method, the clamping step and the tire removing step are performed; the clamping step is such that the lower steel ring has been detached from the lower lip portion of the tire, and the upper steel ring is already embedded in the tire The upper lip portion and the lower support body are in contact with the lower side wall of the tire, the tire detacher is driven to contact the upper support body with the upper side wall of the tire, and the upper support body and the lower portion are used a support body for sandwiching the tire; the tire removing step continues while the lower support body and the upper support body are sandwiched between the tires, and the steel ring moving mechanism is driven to drive the upper steel ring The aforementioned upper support body is relatively moved toward the upper side, and the aforementioned tire is detached from the aforementioned upper steel ring.

A method of controlling a tire holding device according to a thirteenth aspect of the present invention, wherein the tire holding device includes: a lower support moving The mechanism moves the lower support body relative to the lower rim in a vertical direction.

In the control method, the detaching step is performed at least before the tire unloading step, and the detaching step moves the lower support from the state in which the tire is held by the upper rim and the lower rim Driving the mechanism and moving the lower support body relatively vertically toward the lower steel ring so that the lower support body contacts the lower side wall of the tire, and the tire and the lower support body face vertically upward with respect to the foregoing The lower rim is relatively moved to detach the aforementioned tire from the aforementioned lower rim.

According to an aspect of the present invention, when the tire has been detached from the upper rim or the lower rim, the bouncing of the tire can be suppressed, and the tire can be prevented from moving in the horizontal direction.

10‧‧‧Pre-treatment device

11‧‧‧Inlet conveyor

12‧‧‧Centering

20‧‧‧Testing device

21‧‧‧Frame

21a‧‧‧Base

21b‧‧‧ main frame

22‧‧‧Center conveyor (lower support)

23‧‧‧Land

24‧‧‧Belt interval changing mechanism (lower support spacing change mechanism)

25‧‧‧Conveyor lifting device (lower support moving mechanism)

25a‧‧‧ Guidance

29‧‧‧ bracket

30, 30a‧‧‧ Tire retaining device

31d‧‧‧lower spindle

31u‧‧‧Upper spindle

32d‧‧‧ Lower steel ring collet mechanism

32u‧‧‧Upper steel collet mechanism

33d‧‧‧ lower steel ring

33u‧‧‧Upper steel ring

35‧‧‧Servo motor

37‧‧‧Steel lifts (steel moving mechanism)

39‧‧‧ Tire measuring device

40‧‧‧ tyre remover

40d‧‧‧Second tire remover

40u‧‧‧First tire remover

41‧‧‧ Platen moving mechanism (upper support moving mechanism)

41c‧‧‧Cylinder housing

41p‧‧‧Piston

41r‧‧‧Piston rod

42‧‧‧Pressing plate (upper support)

4311‧‧‧First air line

4312‧‧‧Second air line

431s‧‧‧Air supply line

43r‧‧‧Air Pressure Regulator

43s‧‧‧air supply

43v‧‧‧Reversing valve

45‧‧‧Dropper Interval Change Mechanism (Upper Support Interval Change Mechanism)

46‧‧‧ Screw shaft

46g‧‧‧guides

46r‧‧‧ Track

47‧‧‧ Nut components

48b‧‧‧ Bearing

48m‧‧‧ motor

49a‧‧‧Interval change mechanism base

49b‧‧‧Cylinder mounting plate

49c‧‧‧ nut bearing

50‧‧‧Reprocessing device

51‧‧‧Export conveyor

100‧‧‧ Controller

110‧‧‧Pre-Process Control Department

120‧‧‧Test Control Department

121‧‧‧ Spindle rotation control unit

122‧‧‧Center conveyor control department

123‧‧‧Steel Moving Control Department

124‧‧‧Conveyor Lift Control Department

125‧‧‧Dropper drive control unit

126‧‧‧Belt Interval Control Department

127‧‧‧Dropper Interval Control Department

128‧‧‧Measurement Control Department

130‧‧‧Reprocessing Control Department

Lc‧‧‧ Path Center Line

Lr‧‧‧ axis of rotation

Rt‧‧‧ test area

T‧‧‧ tires

Tbd‧‧‧ lower lip

Tbu‧‧‧ upper lip

Twd‧‧‧ lower side wall

Twu‧‧‧ upper side wall

X‧‧‧ tire handling direction

Y‧‧‧Path width direction

(-)X‧‧‧ upstream side

(+)X‧‧‧ downstream side

Fig. 1 is a plan view showing a tire testing system in a first embodiment of the present invention.

Figure 2 is a cross-sectional view taken along line II-II of Figure 1.

Figure 3 is a cross-sectional view taken along line III-III of Figure 1.

Fig. 4 is a front elevational view showing the tire detacher and the detacher interval changing mechanism in the first embodiment of the present invention.

Figure 5 is a cross-sectional view taken along line V-V of Figure 4.

Fig. 6 is a functional block diagram of a controller in the first embodiment of the present invention.

Fig. 7 is a flow chart showing the procedure of the tire removing method in the first embodiment of the present invention.

FIG. 8 is an explanatory view showing a state in which the center conveyor for a tire is conveyed into the test area in the first embodiment of the present invention.

Fig. 9 is an explanatory view showing a step of inserting a steel ring and a lower steel ring into a tire in the first embodiment of the present invention.

Fig. 10 is an explanatory view showing a detaching step in the first embodiment of the present invention.

Fig. 11 is an explanatory view showing a step of sandwiching in the first embodiment of the present invention.

Fig. 12 is an explanatory view showing a tire removing step in the first embodiment of the present invention.

Fig. 13 is an explanatory view showing a tire removing step in the first embodiment of the present invention.

Fig. 14 is an explanatory view (part 1) showing a detaching step and a merging step in the second embodiment of the present invention.

Fig. 15 is an explanatory view (part 2) showing a detaching step and a merging step in the second embodiment of the present invention.

Fig. 16 is an explanatory view showing a tire removing step in the second embodiment of the present invention.

Hereinafter, various embodiments of the tire testing system of the present invention will be described with reference to the drawings.

 [First Embodiment]  

A first embodiment of the tire testing system of the present invention will be described with reference to Figs. 1 to 12 .

As shown in FIG. 1 to FIG. 3, the tire test system of the present embodiment includes a pretreatment device 10 for pre-treating a tire T to be tested, and a test device 20 for performing the tire T. Various tests; and a post-processing device 50 for post-treating the tested tire T; and a controller 100 (see FIG. 6) for controlling the operation of the devices 10, 20, 50.

The pretreatment apparatus 10 includes an inlet conveyor 11, a centering mechanism 12, and a lubricant application mechanism (not shown). The entrance conveyor 11 carries the tire T in a predetermined direction. The following direction is used as the tire transport direction X. Further, the side of the tire transport direction X is referred to as the downstream side (+)X, and the opposite side of the downstream side (+)X is referred to as the upstream side (-)X. In the inlet conveyor 11, the tire T in which the side walls Twu and Twd are oriented in the vertical direction is placed. The inlet conveyor 11 conveys the placed tire T from the upstream side (-) X to the downstream side (+) X.

The centering mechanism 12 is such that the center of the tire T is located at a predetermined position of the inlet conveyance path on the inlet conveyor 11. The predetermined position refers to the center in the path width direction Y of the inlet conveyance path. Thus, the centering mechanism 12 centers the tire T. The lubricant application mechanism (not shown) applies a lubricant to the upper portion Tbu and the lower lip portion Tbd of the tire T that has been centered.

The test device 20 includes a tire holding device 30, a tire measuring device 39, and a frame 21 that supports the same. The tire holding device 30 holds the tire T in a rotatable manner. The tire holding device 30 is provided with a center conveyor 22. The center conveyor 22 is disposed on the downstream side (+)X of the inlet conveyor 11, and conveys the tire T in the same direction as the tire conveying direction X of the inlet conveyor 11. Therefore, the path width direction Y of the center conveyance path of the center conveyor 22 is also the same direction as the path width direction Y of the inlet conveyance path. The tire gauge 39 performs various measurements regarding the tire T held by the tire holding device 30.

The post-processing device 50 includes an exit conveyor 51 and a marking mechanism (not shown). The exit conveyor 51 is disposed on the downstream side (+)X of the center conveyor 22, and conveys the tire T in the same direction as the tire conveyance direction X of the entrance conveyor 11 and the center conveyor 22. Therefore, the path width direction Y of the outlet conveyance path of the exit conveyor 51 is also the same direction as the path width direction Y of the inlet conveyance path and the center conveyance path. The level of the vertical direction of the exit transport path is the same as the vertical direction of the entrance transport path.

As shown in FIG. 2 and FIG. 3, the tire holding device 30 in the testing device 20 includes an upper spindle 31u, an upper steel ring chuck mechanism 32u, and a lower spindle in addition to the center conveyor 22 described above. 31d, a lower steel ring chuck mechanism 32d, a steel ring lifter 37, a conveyor lifting device 25, two tire detachers 40, and a detacher interval changing mechanism 45.

Each of the upper main shaft 31u and the lower main shaft 31d is a member having a columnar shape with the rotation axis Lr extending in the vertical direction as a center. The lower main shaft 31d is rotatably driven on the base 21a of the frame 21 with the rotation axis Lr as a center. The lower rim collet mechanism 32d holds the lower rim 33d that is embedded in the lower lip Tbd of the tire T. The lower rim 33d is in a state of being attached to the lower main shaft 31d by being held by the lower ferrule chuck mechanism 32d. The upper rim collet mechanism 32u holds the upper rim 33u embedded in the upper portion Tbu of the tire T. The upper steel ring 33u is in a state of being attached to the upper main shaft 31u by being held by the upper reel chuck mechanism 32u.

The tire detacher 40 and the detacher interval changing mechanism 45 will be described later.

The steel ring elevator (steel moving mechanism) 37 is supported by the main frame 21b of the frame 21 so as to be movable in the vertical direction. The above-described upper main shaft 31u is supported by the rim lifter 37.

The steel ring elevator 37 is lifted and lowered in a state where the rotation axis Lr of the upper main shaft 31u coincides with the rotation axis line Lr of the lower main shaft 31d. When the rim lifter 37 is lowered, the lower portion of the upper spindle 31u is inserted into the inside of the lower spindle 31d. The upper spindle 31u is coupled to the lower spindle 31d at a predetermined insertion position by a lock mechanism (not shown) provided in the lower spindle 31d. When the upper spindle 31u is coupled to the lower spindle 31d by the lock mechanism, it rotates integrally with the rotation of the lower spindle 31d.

The center conveyor 22 described above is supported by the main frame 21b so as to be movable in the vertical direction by the guide means 25a such as a linear guide. The center conveyor 22 is lifted and lowered in the vertical direction between the upper limit position and the lower limit position by a conveyor lifting device (lower support moving mechanism) 25 including a servo motor (not shown). As shown by the broken lines in FIGS. 2 and 3, the upper limit position of the center conveyor 22 refers to the level of the upper surface of the center conveyor 22, in other words, the level of the center conveyance path becomes the entrance conveyance path and the exit conveyance path. The same level of horizontal position. As shown by the solid lines in FIGS. 2 and 3, the lower limit position of the center conveyor 22 is the level of the upper surface of the center conveyor 22, and is lower than the lower steel ring 33d attached to the lower main shaft 31d.

When the center conveyance path of the center conveyor 22 is at the upper limit position, the imaginary line extending through the rotation axis Lr of the upper main shaft 31u and the lower main shaft 31d and extending in the tire conveyance direction X on the center conveyance path is the path center line Lc. The centering mechanism 12 of the pretreatment apparatus 10 is such that the center of the tire T is located on the path center line Lc.

The center conveyor (lower support) 22 is in the path width direction Y and has a pair of belts 23 spaced apart from each other by a predetermined distance. The belt 23 and the other belt 23, which are one of the pair of belts 23, are disposed at positions symmetrical in the path width direction Y with reference to the path center line Lc passing through the rotation axis Lr. The interval between the pair of belts 23 in the path width direction Y can be adjusted by a known belt interval changing mechanism (lower support interval changing mechanism) 24. Therefore, the lower main shaft 31d and the lower steel ring 33d can pass between the pair of belts 23 when the center conveyor 22 moves up and down.

Each of the two tire detachers 40 described above relatively moves the tire T, which has been inserted into the upper rim 33u, toward the upper rim 33u in the vertical direction to remove the tire T from the upper rim 33u. The detacher interval changing mechanism (upper support interval changing mechanism) 45 moves the respective directions of the two tire detachers 40 in the radial direction with respect to the aforementioned rotation axis Lr.

As shown in FIGS. 4 and 5, the tire detacher 40 has a pressure plate (upper support) 42 and a platen moving mechanism (upper support moving mechanism) 41. The platen moving mechanism 41 is a pneumatic cylinder in this embodiment. The platen moving mechanism 41 has a cylinder housing 41c, a piston rod 41r, and a piston 41p. A piston 41p is fixed to the base end of the piston rod 41r. The base end of the piston rod 41r and the piston 41p have entered the cylinder housing 41c. A plate-shaped pressure plate 42 is fixed to the front end of the piston rod 41r. The front end of the piston rod 41r and the pressure plate 42 are exposed from the cylinder housing 41c. In the cylinder housing 41c, the first chamber and the second chamber are separated by a piston 41p. A first air line 4311 communicating with the first chamber and a second air line 4312 communicating with the second chamber are connected to the cylinder housing 41c. In the first air line 4311, an air pressure regulator 43r is provided. The first air line 4311 is connected to the first port of the reversing valve 43v, and the second air line 4312 is connected to the second port of the reversing valve 43v. An air supply line 431s extending from the air supply source 43s is connected to the third port of the switching valve 43v. In the present embodiment, the pressure in the cylinder casing 41c is adjusted to a predetermined pressure by the air pressure regulator 43r. When the air supply source 43s passes through the air supply line 431s, the switching valve 43v, and the first air line 4311 in the cylinder housing 41c, and the air of a predetermined pressure is supplied, the piston rod 41r and the pressure plate 42 and the piston 41p are supplied. Move together. The pressure plate 42 is in contact with the upper side wall of the tire T that has been embedded in the upper steel ring 33u, and presses the tire T downwardly.

The detacher interval changing mechanism 45 includes a screw shaft 46, a rail 46r, a guide 46g, a nut member 47, a bearing 48b, a motor 48m, a gap changing mechanism base 49a, and a cylinder mounting plate 49b. Both the screw shaft 46 and the rail 46r extend in a horizontal direction perpendicular to the rotation axis Lr with respect to the upper main shaft 31u and the lower main shaft 31d. Further, in the present embodiment, both the screw shaft 46 and the rail 46r extend in the tire transport direction X which is the horizontal direction. In the nut member 47, a female thread is formed. The nut member 47 is screwed into the screw shaft 46. The bearing 48b supports the screw shaft 46 to be rotatable about its central axis. Motor 48m rotates screw shaft 46 about its central axis. Both the motor 48m and the bearing 48b are fixed to the gap changing mechanism base 49a. The interval changing mechanism base 49a is fixed to the aforementioned rim lifter 37. The cylinder mounting plate 49b is opposed to the vertical direction with respect to the interval changing mechanism base 49a. In the cylinder mounting plate 49b, the cylinder housing 41c of the tire detacher 40 is fixed so that the piston rod 41r of the tire detacher 40 can advance and retreat in the vertical direction. The cylinder mounting plate 49b is connected to the nut member 47 by a nut bracket 49c. A rail 46r and a guide 46g are disposed between the cylinder mounting plate 49b and the gap changing mechanism base 49a. The rail 46r is fixed to the interval changing mechanism base 49a. The guide 46g is slidably attached to the rail 46r to the rail 46r. The guide 46g is fixed to the cylinder mounting plate 49b.

According to the above configuration, when the motor 48m is driven and the screw shaft 46 is rotated about the central axis thereof, the nut member 47 and the tire detacher 40 coupled to the nut member 47 are moved in the horizontal direction.

In the present embodiment, the piston rods 41r of the two tire detachers 40 are located above the path center line Lc. Further, the two tire detachers 40 are disposed at positions symmetrical in the conveyance direction X with reference to the rotation axis Lr of the upper main shaft 31u and the lower main shaft 31d as a reference. The female thread of the nut member 47 coupled to the first tire detacher 40u of the two tire detachers 40 is reversely threaded with respect to the female thread of the nut member 47 coupled to the second tire detacher 40d. Therefore, when the screw shaft 46 rotates and the first tire detacher 40u moves in a direction away from the rotation axis Lr of the upper main shaft 31u and the lower main shaft 31d, the second tire detacher 40d also moves in a direction away from the rotation axis Lr. On the other hand, when the screw shaft 46 rotates and the first tire detacher 40u moves in the direction approaching the rotation axis Lr, the second tire detacher 40d also moves in a direction approaching the rotation axis Lr. As described above, by moving the two tire detachers 40, the two tire detachers 40 can be used to press the side walls of the tire T having different outer diameters.

As described above, the controller 100 controls the operations of the pre-processing device 10, the testing device 20, and the post-processing device 50. As shown in FIG. 6, the controller 100 includes a pre-processing control unit 110 that controls the operation of the pre-processing device 10, and a test control unit 120 that controls the operation of the test device 20 and a post-processing control unit. 130, which is an operation of controlling the post-processing device 50. The test control unit 120 includes a spindle rotation control unit 121 that controls the operation of the servo motor 35 that rotates the lower spindle 31d, and a center conveyor control unit 122 that controls the operation of the center conveyor 22; a movement control unit 123 that controls the operation of the rim lifter 37; a conveyor lift control unit 124 that controls the operation of the conveyor lift unit 25; and a detacher drive control unit 125 that controls the tire detacher 40 The operation and the belt interval control unit 126 are operations for controlling the belt interval changing mechanism 24, and the detacher interval control unit 127 for controlling the operation of the detacher interval changing mechanism 45.

Next, the operation of the tire test system described above will be described.

When the tire T is placed on the inlet conveyor 11, the centering mechanism 12 of the pretreatment device 10 is actuated such that the center of the tire T is located at the center of the inlet conveyance path, in other words, on the path center line Lc. After the centering mechanism 12 is operated, the lubricant applying mechanism of the pretreatment apparatus 10 applies a lubricant to the upper lip portion Tbu and the lower lip portion Tbd of the tire T.

When the application of the lubricant to the tire T is completed, the inlet conveyor 11 and the center conveyor 22 are started to be driven, and the tire T is conveyed to the downstream side (+)X. The center conveyor control unit 122 of the controller 100 determines whether or not the tire T has been transported into the test region Rt shown in Fig. 8 based on the driving amount of the center conveyor 22 or the driving time of the center conveyor 22. The test region Rt is a region of a cylinder having an outer diameter that is substantially the same as the outer diameter of the tire T with the rotation axis Lr as the center. As shown in Fig. 8, the center conveyor control unit 122 stops the center conveyor 22 when it is determined that the tire T has been transported into the test area Rt. Further, the center conveyor control unit 122 may control the driving amount of the center conveyor 22 based on a signal from a position sensor that detects the position of the tire T.

When the center conveyor 22 is stopped, the conveyor lifting control unit 124 drives the conveyor lifting device 25, and as shown in Fig. 9, the center conveyor 22 and the tire T placed above the center conveyor 22 are lowered. And the rim lifter 37 is driven to lower the upper main shaft 31u and the upper rim 33u. The steel ring movement control unit 123 drives and controls the steel ring lifter 37 so that the descending speeds of the upper main shaft 31u and the upper steel ring 33u are the same as or lower than the lowering speed of the center conveyor 22. During this lowering process, the upper steel ring 33u is embedded in the upper lip portion Tbu of the tire T, and the lower steel ring 33d already attached to the lower main shaft 31d is fitted in the lower lip portion Tbd of the tire T. As a result, the tire T is sandwiched by the upper steel ring 33u and the lower steel ring 33d. Further, the lower portion of the upper spindle 31u enters the lower spindle 31d. The upper main shaft 31u is coupled to the lower main shaft 31d by a lock mechanism (not shown) provided in the lower main shaft 31d. At this stage, the center conveyor 22 is directed downward from the tire T.

Thereafter, air is supplied to the inside of the tire T from the outside through the upper main shaft 31u or the lower main shaft 31d. When air is supplied to the inside of the tire T, the spindle rotation control unit 121 rotates the lower spindle 31d. With the rotation of the lower main shaft 31d, the lower steel ring 33d attached to the lower main shaft 31d, the upper main shaft 31u coupled to the lower main shaft 31d, and the upper steel ring 33u attached to the upper main shaft 31u, The main shaft 31d rotates integrally. As a result, the tire T sandwiched by the upper steel ring 33u and the lower steel ring 33d also rotates. The measurement control unit 128 performs various types of measurement on the tire T during the rotation of the tire.

When the above various measurements are completed, the air is discharged from the tire T. Further, the combined state of the upper main shaft 31u and the lower rim 31d caused by the lock mechanism is released.

When the various measurement of the tire T is completed and the combined state of the upper main shaft 31u and the lower rim 31d is released, the tire unloading process of detaching the tire T from the upper main shaft 31u and the lower main shaft 31d is performed.

This tire unloading process will be described in accordance with the flowchart shown in FIG.

First, a detaching step (S1) of detaching the tire T from the lower rim 33d is performed. Before the detaching step (S1) is performed, as shown in Fig. 9, the tire T is held by the upper steel ring (first steel ring) 33u and the lower steel ring (second steel ring) 33d. In the detaching step (S1), as shown in Fig. 10, first, the conveyor lifting control unit 124 drives the conveyor lifting device (lower supporting body moving mechanism, second moving mechanism) 25 and centrally conveys The machine (second support) 22 is raised so that the upper surface of the center conveyor 22 is in contact with the lower side wall Twd of the tire T. Alternatively, the center conveyor 22 is used to support the tire T. Thereafter, the conveyor lifting and lowering control unit 124 continues to drive the conveyor lifting and lowering device 25 to raise the center conveyor 22, and the steel ring movement control unit 123 drives the steel ring elevator 37 to make the upper main shaft 31u and the upper steel ring. 33u rises together with the steel ring lifter 37. The steel ring movement control unit 123 drives and controls the steel ring lifter 37 so that the ascending speed of the upper main shaft 31u and the upper steel ring 33u becomes the same as or higher than the ascending speed of the center conveyor 22. Therefore, the tire T rises in a state of being sandwiched by the center conveyor 22 and the upper steel ring 33u. By the rise of the tire T, the lower rim 33d can be detached from the lower lip portion Tbd of the tire T. That is, the tire T system can be detached from the lower steel ring (second steel ring) 33d. As described above, in the present embodiment, the tire T is in a state in which the tire T has been sandwiched by the center conveyor (the lower support body, the second support body) 22 and the upper steel ring (first steel ring) 33u. Detach from the lower steel ring (second steel ring) 33d. Therefore, in the present embodiment, the tire T can be detached from the lower rim (second rim) 33d while the tire T is in a stable state.

At the point of completion of the detaching step (S1), the upper steel ring (first steel ring) 33u is also embedded in the upper lip portion Tbu of the tire T, and the center conveyor (lower support body, second support body) 22 has A state in which the lower side wall Twd of the tire T is in contact with each other.

When the detaching step (S1) is completed, as shown in FIG. 11, the pressure plate (upper support body, first support body) 42 and the center conveyor (lower support body, second support body) 22 are executed to sandwich the tire. The clamping step of T (S2). In the squeezing step (S2), the detacher drive control unit 125 drives the platen moving mechanism (upper support moving mechanism, first moving mechanism) 41 and presses the tire detacher 40 (upper support, first) A support 42 is lowered to bring the pressure plate 42 into contact with the upper side wall Twu of the tire T. As a result, the tire T is in a state of being sandwiched by the platen 42 and the center conveyor 22 from the vertical direction.

Next, as shown in Fig. 12, a tire unloading step (S3) is performed which continues the sandwiching of the used press plate (upper support) 42 and the center conveyor (lower support) 22 In the state of the tire T, the upper rim (first rim) 33u is relatively vertically moved toward the platen (upper support, first support) 42 to detach the tire T from the upper rim 33u. In the tire removing step (S3), the conveyor lifting and lowering control unit 124 continues to drive the conveyor lifting and lowering device 25 to raise the center conveyor 22, and the rim movement control unit 123 drives the rim lifter 37. The upper main shaft 31u and the upper steel ring 33u are raised together with the steel ring lifter 37. When the center conveyor 22 reaches the upper limit position, the conveyor lifting control unit 124 stops the conveyor lifting and lowering device 25. On the other hand, the rim movement control unit 123 also drives the rim lifter 37 to raise the upper main shaft 31u and the upper rim 33u together with the rim lifter 37. Therefore, the distance in the vertical direction between the center conveyor 22 and the upper steel ring 33u becomes larger after the center conveyor 22 stops at the upper limit position. While the distance between the center conveyor 22 and the upper rim 33u in the vertical direction is increased, the pressure plate 42 maintains the state in which the tire T is pressed downward. Therefore, the upper steel ring (first steel ring) 33u relatively moves vertically toward the pressure plate (upper support, first support) 42. By the rise of the upper rim 33u, the upper rim 33u is detached from the upper lip Tbu of the tire T. That is, the tire T can be detached from the upper steel ring (first steel ring) 33u. In the above, the tire unloading step (S3) is completed.

The tire unloading process of detaching the tire T from the upper main shaft 31u and the lower main shaft 31d is completed by the completion of the tire unloading step (S3).

When the tire unloading process is completed, the center conveyor 22 is driven, and the tire T on the center conveyor 22 is conveyed toward the downstream side (+)X. As described above, the upper limit position of the center conveyor 22 refers to a position at which the level of the center conveyance path Pc is the same level as the level of the inlet conveyance path and the exit conveyance path. Therefore, the tire T on the center conveyor 22 is transferred from the center conveyor 22 to the exit conveyor 51. The tire T is attached to the exit conveyor 51, and various information such as measurement results are indicated by a labeling mechanism (not shown).

In the above, the operation of the tire test system is completed.

As described above, in the present embodiment, the tire T is detached from the upper rim 33u in a state where the tire T has been sandwiched by the center conveyor 22 and the pressure plate 42 (S3: tire removal step). Therefore, it is possible to prevent the tire T from temporarily rising integrally with the upper steel ring 33u and being separated from the center conveyor 22 during the process of detaching the tire T from the upper steel ring 33u. Therefore, in the present embodiment, it is possible to suppress the tire T from bounce on the center conveyor 22 in the tire unloading step (S3). Further, in the present embodiment, since the tire T is detached from the upper rim 33u in a state where the tire T has been sandwiched by the center conveyor 22 and the pressure plate 42, it is possible to prevent the tire T from being directed from the test region Rt. Falling off in the horizontal direction.

Further, in the present embodiment, the pneumatic cylinder is used as the platen moving mechanism 41. However, a linear actuator can also be used as the platen moving mechanism 41. However, in the case where the linear actuator is used as the platen moving mechanism 41, since it is necessary to derive the relative position of the driving end of the linear actuator to the base portion of the linear actuator, in order to be compacted For tires belonging to elastomers, the control of the linear actuator can become complicated. On the other hand, when the pneumatic cylinder is used as the platen moving mechanism 41 as in the present embodiment, the air pressure can be applied to the cylinder casing 41c in advance, and the elastic body can be easily and surely pressed. Tire T.

In the sandwiching step (S2), the tire T is sandwiched by the center conveyor 22 and the pressure plate 42, mainly for the purpose of stabilizing the tire T. On the other hand, in the tire unloading step (S3), the upper rim (first rim) 33u is relatively moved toward the platen (first support) 42 in the vertical direction in order to move the tire T from above. The steel ring 33u is separated. Therefore, it is preferable that the air pressure in the cylinder casing 41c in the tire removing step (S3) is formed by the air pressure regulator 43r to be air than the cylinder housing 41c in the step (S2). The pressure is higher. Thus, by adjusting the pressure in the cylinder housing 41c, the tire T can be surely detached from the upper rim 33u in the tire unloading step (S3), and the pressure plate 42 can be suppressed in the sandwiching step (S2). A part of the tire T is largely deformed by being strongly pressed against the tire T. As described above, in the present embodiment, it is possible to easily change the pressing force of the tire T in the tire removing step (S3) and the tire T in the sandwiching step (S2) by adjusting the pressure in the cylinder casing 41c. Tight pressure. Therefore, from such a viewpoint, it is preferable to use a pneumatic cylinder as compared with the use of a linear actuator as the platen moving mechanism 41.

Further, in the above embodiment, the center conveyor 22 and the upper rim 33u are raised, and only the rise of the center conveyor 22 is stopped to increase the distance between the center conveyor 22 and the upper rim 33u. The distance in the vertical direction. Then, during the process of increasing the distance between the center conveyor 22 and the upper steel ring 33u in the vertical direction, the tire T is detached from the upper steel ring 33u. However, the upper rim 33u may be raised before the rise of the center conveyor 22 to increase the distance between the center conveyor 22 and the upper rim 33u in the vertical direction. Then, the tire T may be detached from the upper steel ring 33u while increasing the distance in the vertical direction between the center conveyor 22 and the upper steel ring 33u. That is, the detachment of the tire T from the upper rim 33u can be performed before the start of the rise of the center conveyor 22, or after the rise of the center conveyor 22 is stopped.

Further, in the present embodiment, the belt interval changing mechanism (lower support interval changing mechanism) 24 is provided to change the interval between the two belts 23 constituting the center conveyor (lower support) 22; and the detacher interval The changing mechanism (upper support interval changing mechanism) 45 is a space for changing the two pressure plates (upper support) 42. Therefore, even in the case where the tire size has been changed, the two belts constituting the center conveyor 22 can be brought into contact with the lower side wall Twd of the tire T, and the two pressure plates 42 can be brought into contact with the upper side wall Twu of the tire T.

 [Second embodiment]  

A second embodiment of the tire testing system of the present invention will be described with reference to Figs. 13 to 16 .

The hard structure of the tire test system of the present embodiment is the same as that of the tire test system of the first embodiment. The present embodiment differs from the first embodiment in the operation of the tire holding device in the tire unloading process. Specifically, in the tire unloading process of the first embodiment, after the tire T is detached from the lower rim 33d, the tire T is detached from the upper rim 33u. On the other hand, in the tire unloading process of the present embodiment, after the tire T is detached from the upper rim 33u, the tire T is detached from the lower rim 33d.

Further, in the first embodiment, the lower rim 33d detached from the tire T is the second rim, and the upper rim 33u detached from the tire T thereafter is the first rim. In this relationship, the center conveyor 22 that approaches the tire T from below is the second support body similarly to the lower steel ring 33d, and the pressure plate 42 that approaches the tire T from above in the same manner as the upper steel ring 33u is the first support. Further, the conveyor lifting and lowering device 25 that moves the center conveyor 22 as the second supporting body is the second moving mechanism, and the platen moving mechanism 41 that moves the pressure plate 42 as the first supporting body is the first moving mechanism.

On the other hand, in the present embodiment, the upper rim 33u detached from the tire T is the second rim, and the lower rim 33d detached from the tire T thereafter is the first rim. In this relationship, the pressing plate 42 that is close to the tire T from the upper side like the upper steel ring 33u is the second supporting body, and the center conveyor 22 that is close to the tire T from the lower side like the lower steel ring 33d is the first supporting body. Further, the platen moving mechanism 41 that moves the platen 42 as the second support is the second moving mechanism, and the conveyor lifting and lowering device 25 that moves the center conveyor 22 as the first support is the first moving mechanism.

Hereinafter, the tire unloading process of the present embodiment will be described with reference to the flowchart shown in FIG.

In the tire unloading process, first, as shown in Figs. 14 and 16, a detaching step (S1a) of detaching the tire T from the upper rim 33u is performed. Before the detaching step (S1a) is performed, as shown in Fig. 9, the tire T is held by the upper steel ring (second steel ring) 33u and the lower steel ring (first steel ring) 33d. In the detaching step (S1a), first, the conveyor lifting and lowering control unit 124 drives the conveyor lifting and lowering device (first moving mechanism) 25, and as shown in Fig. 14, the center conveyor 22 is raised to make The upper surface of the center conveyor 22 is in contact with the lower side wall Twd of the tire T. Alternatively, the center conveyor 22 is used to support the tire T. Further, the detacher drive control unit 125 drives the platen moving mechanism (second moving mechanism) 41 and lowers the pressure plate (second support) 42 so that the pressure plate 42 comes into contact with the upper side wall Twu of the tire T.

Thereafter, the detacher drive control unit 125 continues to drive the platen moving mechanism 41, and as shown in FIG. 15, the tire T is pressed downward by the pressure plate (second support) 42 while the rim movement control unit 123 is The rim lifter 37 is driven to raise the upper main shaft 31u and the upper rim (second rim) 33u together with the rim lifter 37. In other words, the tire T is relatively moved toward the upper rim (second rim) 33u in the vertical direction together with the platen (second support) 42. In a state in which the tire T has been sandwiched by the lower rim 33d and the center conveyor (lower support) 22 and the pressure plate (second support) 42, only the upper rim (second rim) 33u rises. The upper steel ring 33u can be detached from the upper lip portion Tbu of the tire T by only the rise of the upper steel ring 33u. That is, the tire T can be detached from the upper steel ring (second steel ring) 33u. As described above, in the present embodiment, the tire T is detached from the upper rim in a state in which the tire T has been sandwiched by the pressing plate (second supporting body) 42 and the lower rim (first rim) 33d. Two steel rings) 33u detached. Therefore, in the present embodiment, the tire T can be detached from the upper rim (second rim) 33u in a state where the tire T is stabilized.

At the point of time when the detaching step (S1a) has been completed, as shown in Fig. 15, the lower steel ring (first steel ring) 33d is also embedded in the lower lip portion Tbd of the tire T, and the pressure plate 42 (second support body) A state in which the upper side wall Twu of the tire T is in contact with. Further, the center conveyor 22 is in contact with the lower side wall Twd of the tire T. Therefore, at the time point when the detaching step (S1a) has been completed, the sandwiching step (S2a) of sandwiching the tire T by the center conveyor (first support) 22 and the pressure plate (second support) 42 is completed.

Further, in the present embodiment, in the detaching step (S1a), the center conveyor (first support) 22 is raised so that the upper surface of the center conveyor 22 comes into contact with the lower side wall Twd of the tire T. However, in the detaching step, the upper surface of the center conveyor (first support) 22 may not be brought into contact with the lower side wall Twd of the tire T, but after performing the detaching step, the center conveyor (first The support body 22 is raised, and the upper surface of the center conveyor 22 is brought into contact with the lower side wall Twd of the tire T, and the center conveyor (first support body) 22 and the pressure plate (second support body) 42 are used to sandwich the tire T. . That is, the clamping step can also be performed after the detaching step is completely completed.

Next, as shown in Fig. 16, a tire unloading step (S3a) is performed which continues the sandwiching of the tire with the upper platen (upper support) 42 and the center conveyor (lower support) 22 In the state of T, the center conveyor (first support) 22 is relatively vertically moved toward the lower rim (first rim) 33d, and the tire T is detached from the lower rim 33d. In the tire removing step (S3a), the conveyor lifting and lowering control unit 124 drives the conveyor lifting and lowering device 25 to raise the center conveyor 22 to the upper limit position. During this period, the pressure plate 42 maintains the state in which the tire T is pressed downward. Therefore, the center conveyor (first support body) 22 relatively moves vertically toward the lower steel ring (first steel ring) 33d. By the rise of the center conveyor 22, the lower rim 33d can be detached from the lower lip portion Tbd of the tire T. That is, the tire T can be detached from the lower rim (first rim) 33d. In the above, the tire unloading step (S3a) is completed. Further, in the present embodiment, as in the first embodiment, it is preferable that the air pressure in the cylinder casing 41c in the tire removing step (S3a) is formed by the air pressure regulator 43r. It is higher than the air pressure in the cylinder housing 41c in the clamping step (S2a).

The tire unloading process of detaching the tire T from the upper main shaft 31u and the lower main shaft 31d is completed by the completion of the tire unloading step (S3a).

As described above, in the present embodiment, the tire T is detached from the lower rim 33d in a state where the tire T has been sandwiched by the center conveyor 22 and the pressure plate 42 (S3a: tire removal step). Therefore, it is possible to prevent the center conveyor 22 from being separated during the process of detaching the tire T from the lower steel ring 33d. Therefore, even in the present embodiment, as in the first embodiment, the tire T can be prevented from bouncing on the center conveyor 22 in the tire unloading step (S3a). Further, even in the present embodiment, since the tire T is detached from the lower rim 33d in a state where the tire T has been sandwiched by the center conveyor 22 and the pressure plate 42, the tire T can be prevented from being tested. The region Rt falls off in the horizontal direction.

Further, even in the present embodiment, the pneumatic cylinder is used as the platen moving mechanism 41 as in the first embodiment. Therefore, even in the present embodiment, the control of the platen moving mechanism 41 is easily performed.

 [variation]  

The present invention is not limited to the embodiments described above, but various modifications may be made to the embodiments described above without departing from the scope of the invention. In other words, the specific shapes, configurations, and the like listed in the respective embodiments are merely examples, and can be appropriately changed.

The upper support of the above embodiment is a plate-shaped pressure plate 42. However, the upper support may not be plate-shaped, for example, it may be cylindrical or spherical. It is preferable that the upper support body maintains the frictional force with the upper side wall Twu of the tire T and the pressing force of the tire T, and suppresses deformation of the tire T as much as possible. Therefore, the upper support body preferably has a plate shape which can increase the contact area with the upper side wall Twu of the tire T.

The detacher interval changing mechanism (upper support interval changing mechanism) 45 of the above embodiment moves the tire detacher 40 in the horizontal direction and in the direction parallel to the path center line Lc. However, the detacher interval changing mechanism 45 can also move the tire detacher 40 in the horizontal direction and in the direction of the path center line Lc.

In each of the above embodiments, the center conveyor 22 is relatively moved, and the center conveyor 22 is relatively moved to the lower rim 33d. However, for example, the center conveyor 22 may be relatively moved to the lower rim 33d by raising the lower rim 33d.

 [Industrial availability]  

According to an aspect of the present invention, when the tire has been detached from the upper rim or the lower rim, the bouncing of the tire can be suppressed, and the tire can be prevented from moving in the horizontal direction.

Claims (13)

 A tire holding device comprising: an upper steel ring which is an upper lip portion of a tire which is fitted in a state in which the side walls are oriented in a vertical direction; and a lower steel ring which is disposed on a lower side of the upper steel ring, and Embedded in the lower lip of the tire and used to hold the tire with the upper steel ring; and an upper support that is connectable to the upper sidewall of the tire; and a lower support that is under the tire a side wall that meets and supports the tire; and a lower support moving mechanism that relatively moves the lower support toward the lower rim in a vertical direction; and a controller that controls the movement of the lower support moving mechanism; The controller performs a clamping step and a tire removing step; the clamping step is that the upper steel ring has been detached from the upper lip portion of the tire, and the lower steel ring is embedded under the tire a lip portion, wherein the lower support body is in contact with the upper side wall of the tire, the lower support body is brought into contact with the lower side wall of the tire, and the lower support body and the upper support body are used And the tire removing step of continuing the state in which the lower support body and the upper support body are sandwiched between the tires, and the lower support body moving mechanism is driven to face the lower steel ring The aforementioned lower support body is relatively moved downward to detach the aforementioned tire from the aforementioned lower steel ring.    A tire holding device according to claim 1, further comprising: a tire detacher having the upper support and an upper support moving the upper support relative to the upper rim in a vertical direction a mechanism for performing a detaching step at least before the tire unloading step, the detaching step driving the tire detacher from a state in which the tire is held by the upper steel ring and the lower steel ring And moving the upper support toward the upper steel ring relatively vertically, so that the upper support body contacts the upper side wall of the tire, and the tire and the upper support body face vertically downward with respect to the upper steel The ring moves relatively to detach the aforementioned tire from the aforementioned upper steel ring.    A tire holding device comprising: an upper steel ring which is an upper lip portion of a tire which is fitted in a state in which the side walls are oriented in a vertical direction; and a lower steel ring which is disposed on a lower side of the upper steel ring, and Embedded in the lower lip portion of the tire and used to hold the tire with the upper steel ring; and a steel ring moving mechanism for relatively moving the upper steel ring toward the lower steel ring in a vertical direction; and a lower support body And the tire detacher having an upper support body that can be in contact with the upper side wall of the tire, and the upper support body facing the upper side in the vertical direction, and the tire detacher An upper support moving mechanism that relatively moves the steel ring; and a controller that controls respective operations of the steel ring moving mechanism and the tire detacher; the controller performs a clamping step and a tire unloading step; The clamping step is such that the lower steel ring has been detached from the lower lip portion of the tire, and on the other hand, the upper steel ring has been embedded in the upper lip portion of the tire, and the lower support body and the front portion In a state where the lower sidewalls of the tire are in contact with each other, the tire detacher is driven to contact the upper support body with the upper side wall of the tire, and the tire is sandwiched by the upper support body and the lower support body; the tire In the removing step, while the tire is sandwiched between the lower support and the upper support, the rim moving mechanism is driven to face the upper support toward the upper support. The ground is moved while the aforementioned tire is detached from the aforementioned upper steel ring.    A tire holding device according to claim 3, further comprising: a lower support moving mechanism that relatively moves the lower support toward the lower rim in a vertical direction; the controller is at least the tire Performing a detaching step before the removing step, the detaching step is to drive the lower support moving mechanism from the state in which the tire is held by the upper rim and the lower rim, and the lower support is oriented vertically Moving the aforementioned lower rim relatively upward to contact the lower support body to the lower side wall of the tire, and moving the tire to the lower rim in a vertically upward direction together with the lower support body to move the tire Detach from the aforementioned lower steel ring.    The tire holding device according to any one of claims 2 to 4, wherein the upper support moving mechanism is a pneumatic cylinder; the pneumatic cylinder has a piston rod extending in a vertical direction; a cylinder housing is provided for the first end of the piston rod to enter, and the piston rod is advanced and retracted in a vertical direction by air pressure; and the upper support body is fixed to the second end of the piston rod.    The tire holding device of claim 5, comprising: an air pressure regulator for adjusting air pressure in the cylinder housing; and the controller, wherein the clamping step is performed by the air pressure regulator The air pressure in the aforementioned cylinder housing is lower than the air pressure in the aforementioned cylinder housing in the aforementioned tire unloading step.    The tire holding device according to any one of claims 1 to 6, wherein the upper steel ring and the lower steel ring are disposed with an axis extending in a vertical direction as a center; the upper support body, A first upper support body and a second upper support body separated from each other in a radial direction with respect to the aforementioned axis; the lower support body has a first lower support body separated from each other in a radial direction with respect to the aforementioned axis And a second lower support; further comprising: an upper support spacing changing mechanism for changing a radial distance between the first upper support and the second upper support; and a lower support spacing changing mechanism It is to change the radial distance between the first lower support and the second lower support.    The tire holding device according to any one of claims 1 to 7, wherein the lower support body is a conveyor in which the tires are placed in a state in which the side walls are oriented in a vertical direction, and the tire is conveyed in a horizontal direction. .    A tire testing system, comprising: a tire holding device according to any one of claims 1 to 8; and a tire measuring device which is held by the upper steel ring and the lower steel ring The aforementioned tires are subjected to various measurements.    A method for controlling a tire holding device is a method for controlling a tire holding device including an upper steel ring, a lower steel ring, an upper support body, a lower support body and a lower support body moving mechanism; the upper steel ring is embedded in both side walls a lower lip portion of the tire in a vertical direction; the lower steel ring is disposed on a lower side of the upper steel ring and embedded in a lower lip portion of the tire, and is used to hold the tire with the upper steel ring; The support body is connectable to the upper side wall of the tire; the lower support body is in contact with the lower side wall of the tire and supports the tire; the lower support body moving mechanism is configured to face the lower support body in a vertical direction The lower steel ring is relatively moved; and is characterized in that: a clamping step and a tire removing step are performed; the clamping step is that the upper steel ring has fallen off from the upper lip of the tire, and the lower steel ring The lower support portion is embedded in the lower lip portion of the tire, and the lower support body is in contact with the upper side wall of the tire, and the lower support body is brought into contact with the lower side wall of the tire, and the lower support is used. The tire and the upper support are inserted into the tire; the tire removing step continues while the lower support body and the upper support are sandwiched between the tires, and the lower support moving mechanism is driven. The tire is detached from the lower steel ring by relatively moving the lower steel ring toward the lower support body in a vertically downward direction.    The method of controlling a tire holding device according to claim 10, wherein the tire holding device includes a tire detacher having the upper support and the upper support facing the upper steel in a vertical direction An upper support moving mechanism that moves relatively in a circle; performing a detaching step at least before the tire unloading step, the detaching step is such that the tire is held by the upper steel ring and the lower steel ring Driving the tire detacher and relatively moving the upper support body toward the upper rim toward the upper side, so that the upper support body contacts the upper side wall of the tire, and the tire is vertically downward with the upper support body The aforementioned upper rim is relatively moved to detach the aforementioned tire from the aforementioned upper rim.    A method for controlling a tire holding device is a method for controlling a tire holding device including an upper steel ring, a lower steel ring, a steel ring moving mechanism, a lower support body and a tire detacher; the upper steel ring is embedded in both side walls and is oriented vertically a tire upper lip in a state of a direction; the lower steel ring is disposed on a lower side of the upper steel ring and embedded in a lower lip portion of the tire, and is used to hold the tire with the upper steel ring; the steel ring a moving mechanism that relatively moves the upper steel ring toward the lower steel ring in a vertical direction; the lower support body is in contact with the lower sidewall of the tire and supports the tire; the tire detacher has the foregoing An upper support body that abuts the upper side wall of the tire, and an upper support moving mechanism that relatively moves the upper support body toward the upper steel ring in a vertical direction; and is characterized in that the clamping step and the tire removing step are performed; In the clamping step, the lower steel ring has been detached from the lower lip portion of the tire, and the upper steel ring has been embedded in the upper lip portion of the tire, and the lower support body and the front portion The tire detacher is driven in a state in which the lower side walls of the tire are in contact with each other such that the upper support body contacts the upper side wall of the tire, and the tire is sandwiched by the upper support body and the lower support body; In the next step, the state in which the tire is sandwiched between the lower support and the upper support is continued, and the rim moving mechanism is driven so that the upper rim is vertically facing the upper support. Moving, the aforementioned tire is detached from the aforementioned upper steel ring.    The method of controlling a tire holding device according to claim 12, wherein the tire holding device includes: a lower support moving mechanism that relatively moves the lower support toward the lower rim in a vertical direction; Performing a detaching step at least before the tire unloading step, the detaching step is to drive the lower support moving mechanism from the state in which the tire is held by the upper rim and the lower rim, and the lower portion is driven The support body is relatively vertically moved toward the lower steel ring so that the lower support body contacts the lower side wall of the tire, and the tire and the lower support body are relatively vertically moved toward the lower steel ring toward the upper side. To detach the aforementioned tire from the aforementioned lower steel ring.