JPH06104327B2 - Tire mounting method and tire mounting apparatus for vulcanizer - Google Patents

Description

The present invention relates to a tire device method and a tire mounting device for a vulcanizer.

[Conventional technology]

Conventionally, in order to mount an unvulcanized tire on a tire vulcanizer, an unvulcanized tire 100 is loaded into a loader 10 as shown in FIG. 11A.
1 is carried into the center of the vulcanizer 102, and in a state where the tire 100 is gripped by the loader 101, the vulcanized bladder 103 is placed inside the unvulcanized tire 100 as shown in FIG. 11B. The tire is inflated with an inflation medium such as low-pressure inert gas, and then the grip of the loader 101 is released,
The loader 101 is moved outside the vulcanizer.

Next, the pressure inside the bladder 103 is increased, and after performing a so-called shaping step of expanding in a toroidal shape until the unvulcanized tire is close to the shape of the final vulcanized state, the vulcanizer is completely opened. Vulcanization was performed by introducing a vulcanizing medium such as steam.

[Problems to be Solved by the Invention]

In the conventional method of loading (mounting) the unvulcanized tire into the mold, the upper and lower bead portions 104 and 105 of the unvulcanized tire 100 are sufficiently fitted to the bead ring 106 of the upper and lower molds when shaping is performed. Because it is not in a state where
Loader 101 when loading tires, misaligned axis, unvulcanized tire 100
Due to the deformation of the bladder 103, the uneven expansion state of the bladder 103, etc., it is difficult to perform uniform shaping. , Bead part 1
There is a high risk that the 04, 105 will be deformed or distorted unreasonably.

Therefore, these factors adversely affect the uniformity of the tire during the vulcanization process.

Therefore, in order to solve the above-mentioned drawbacks, JP-A-60-361
As shown in No. 11 publication, a small bladder is provided in the central mechanism of the vulcanizer, and the upper bead portion of the unvulcanized tire is
Set and hold on the bead ring of the upper mold, then close the mold slightly, when the remaining lower bead part contacts the bead ring of the lower mold, introduce air from the center part,
A method of pushing the lower bead portion into the bead ring of the lower mold by the inflating force of the air and setting the upper and lower bead portions to the bead rings of the upper and lower molds, respectively, is further disclosed in JP-A-62-191107. A similar method of fitting the bead portion with inflated air is disclosed. Japanese Patent Publication No. 63-16254 discloses a method of setting the upper and lower bead parts by a mechanical method on the premise of bladderless vulcanization.

However, the above-described method using air requires a large amount of air, which increases the lining cost and causes some deformation in the unvulcanized tire. In this case, if there is a gap between the bead portion and the bead ring, there is a drawback that air leaks and it is difficult to set reliably, and with the mechanical method, the bead diameter that can be set by the same setting mechanism is It was naturally limited, and when the bead diameter changed, some or all of the mechanism had to be replaced, and it took a long time to change the size.

Therefore, in the present invention, the upper and lower bead portions can be easily and surely fitted into the bead rings of the upper and lower molds, which contributes to the improvement of the tire uniformity, and the economical vulcanizer which consumes less compressed air. An object of the present invention is to provide a tire mounting method and a tire mounting device for a tire.

[Means for Solving the Problems]

In order to achieve the above object, the tire mounting method for a vulcanizer according to the present invention, an unvulcanized tire in a state in which the axial direction of the hole is substantially vertical, is placed in a vulcanizer in an open state. Bring in,
After that, the lower bead portion is fitted to the bead ring of the lower mold, and then the upper bead portion is fitted to the bead ring of the upper mold. A plurality of guide plates which are arranged in the radial direction and are capable of reciprocating in the radial direction, are moved in the outer radial direction and brought into contact with the upper and lower bead portions of the tire, and then the lower end edges of the guide plates are molded into a lower mold. Of the bead ring is brought into contact with the upper end edge of the bead ring, and the engaging claw attached to the guide plate is brought into contact with the inner peripheral surface of the bead ring from the inner diameter side, and then attached to the guide plate so as to be vertically movable. The lower bead portion of the tire is pressed downward to fit the bead ring, and then the pressing member of the vertical moving member provided at the center of the upper frame of the vulcanizer is removed from the outside. Move it in the radial direction to contact the upper bead and move it up and down. Wood and is intended to fit the bead portion on said tire bead ring of the top mold is raised.

Further, the tire mounting device of the vulcanizer according to the present invention is such that it is removably inserted in the hole portion of the unvulcanized tire on the unvulcanized tire pedestal along the axial direction and reciprocates in the radial direction. A plurality of guide plates that are movable and contact the upper and lower bead portions of the tire are arranged at a predetermined pitch along the circumferential direction, and the lower end edge of the guide plates is the bead ring of the lower mold. A locking claw that is in contact with the inner peripheral surface of the bead ring in a state of being in contact with the upper end edge is attached to the lower portion of the guide plate.
A pushing claw for loading the tire into the vulcanizer from the tire receiving base via the transfer mechanism while supporting the upper bead portion is attached to the guide plate so as to move up and down along the axial direction. And a lower bead portion fitting mechanism that pushes the lower bead portion of the tire downward to fit the bead ring by lowering the pushing claw; and a lower bead portion fitting mechanism. A vertically moving member that moves up and down along the axial direction in the hole of the unvulcanized tire in which the bead portion is fitted to the bead ring of the lower mold is attached to the center of the upper frame of the vulcanizer.
Further, a pressing member that reciprocates along the radial direction is attached to the vertical moving member, the pressing member is moved in the outer radial direction to abut against the upper bead portion, and the vertical moving member is raised. An upper bead portion fitting mechanism for fitting the upper bead portion of the unvulcanized tire to the bead ring of the upper mold.

[Action]

In the hole (that is, the shaft center hole) of the unvulcanized tire on the pedestal,
Insert the guide plate of the fitting mechanism for the lower bead part from above and move the guide plate in the outer diameter direction to bring the guide plate into contact with the upper and lower bead parts of the unvulcanized tire, and push it up with the pushing claw. With the bead portion locked, the unvulcanized tire is loaded above the lower mold of the vulcanizer, then the guide plate is lowered, and the lower edge of the guide plate is attached to the bead ring of the lower mold. It is brought into contact with the upper edge so that the axis of the hole of the unvulcanized tire and the axis of the lower mold are aligned. Then, the pushing claw is lowered, and the lower bead portion is pressed by the pushing claw to maintain the roundness of the lower bead portion by the guide plate, and the lower mold is parallel to the bead ring by the pushing claw. Fully fit the bead ring of.

Then, while moving the guide plate in the inner diameter direction, the guide plate is raised to pull out from the hole portion of the unvulcanized tire, and then,
Lower the vertical movement member of the upper bead part fitting mechanism,
Insert into the hole of the tire mounted on the lower mold.

After that, the pressing member is moved in the outer diameter direction and brought into contact with the upper bead portion, and then the vertically moving member is raised and the block member pushes the upper bead portion upward to completely fit the bead ring of the upper mold. When fitted, the unvulcanized tire is in a state in which the upper and lower bead portions are properly fitted to the bead rings of the upper and lower molds, respectively. Next, the pressing member is moved in the inner diameter direction, and then the vertical moving member is raised. After that,
The vulcanization bladder is guided into the tire according to the usual vulcanization step, the shaping medium is introduced, the usual vulcanization cycle is shaped, and the upper and lower molds are completely closed to start the vulcanization cycle.

EXAMPLES Examples will be described below with reference to the drawings.

FIG. 1 shows a fitting mechanism 1 for a lower bead portion of a tire mounting apparatus according to the present invention, and FIG. 6 shows a fitting mechanism 2 for an upper bead portion. 4 As shown in FIG. 10B, the lower bead portion 4 of the unvulcanized tire 3 is fitted to the bead ring 6 of the lower mold 5 and the upper bead portion fitting mechanism 2 is used as shown in FIG. The upper bead portion 7 of the unvulcanized tire 3 is fitted to the bead ring 9 of the upper mold 8.

As shown in FIGS. 1 to 3, the lower bead portion fitting mechanism 1 is arranged along the axial direction in the hole portion 10 of the unvulcanized tire 3 on the unvulcanized tire pedestal 36. A plurality of guide plates 11 that can be inserted and removed freely and can be reciprocally moved in the radial direction.
..., a locking claw 12 attached to the lower portion of the guide plate 11, a pushing claw 13 attached to the guide plate 11 and vertically moving along the guide plate 11 in the axial direction, and the like. As shown in the right half of FIG. 1, the unvulcanized tire 3'is supported by the upper and lower bead portions 7 and 4 in contact with the guide plate 11 and the upper bead portion 7 locked by the pushing claws 13. It is carried from 36 to above the lower mold of the vulcanizer. Further, as shown in FIG. 4 II, with the lower end edge 27 of the guide plate 11 in contact with the bead ring 6 of the lower mold 5, the pushing claw 13
Is lowered to fit the lower bead portion 4 of the unvulcanized tire 3 to the bead ring 6. That is, this lower bead portion fitting mechanism 1 also has a mechanism for holding and carrying the unvulcanized tire 3 into the vulcanizer from the pedestal 36.

In FIG. 1, reference numeral 14 is a cylinder mechanism in which the piston rod 14a reciprocates along the axis of the unvulcanized tire 3 mounted on the pedestal 36, and the cylinder mechanism 14 is attached to the frame 15. It is fixed. As shown in FIG. 5, the frame 15 is moved up and down and turned by the elevating mechanism 86 and the turning mechanism 87 of the loader driving device that is the transfer mechanism 85 to receive the unvulcanized tire 3 on the pedestal. Carry in from 36 to above the lower mold of the vulcanizer. Further, a substrate 17 fixed to the frame 15 is attached to the cylinder body 16 in which the piston rod 14a is internally provided, and further, slit holes 18, 18 in the axial direction are formed on the outer wall of the cylinder body 16. It is formed so as to face each other.

A reciprocating mechanism 19 for reciprocating the guide plate 11 in the radial direction is attached to the board 17.

Here, the reciprocating mechanism 19 is a second reciprocating mechanism as seen from the arrow A in FIG.
As shown in the figure, a plurality of rollers 20 erected rotatably on the substrate 17, a ring body 21 fitted around the rollers 20 to rotate around an axis, and the ring body 21 and a guide. A link mechanism 22 for interlocking connection with the plate 11, a plurality of linear guide rods 23 protruding from the rear surface of the board 17, and a piston rod 24a.
A cylinder mechanism 24 having a tip end attached to the ring body 21 and a main body portion 24b attached to the linear guide rod 23, and the guide plate 11 has an arc shape in plan view as shown in FIG. The hanging wall part 11a and the horizontal wall part 11b
The guide members 25, 25 are provided on the horizontal wall portion 11b so as to project therefrom. Then, the linear guide rod 23 is connected to the guide body 2
Slightly interposed between 5,25. Also, the hanging wall 11
A slide hole 26 through which the pushing claw 13 slides up and down is provided in a.

Then, when the piston rod 24a of the cylinder mechanism 24 reciprocates, the ring body 21 rotates around the axis while being guided by the rollers 20, and the rotation causes the guide plate 11 to move through the link mechanism 22. It reciprocates in the radial direction along the linear guide rod 23 as shown by the arrow. In addition, as shown in FIG.
A pin 31 is erected on the upper surface of the ring body 21, and a stopper 32 is attached to the frame 15, and the pin 31 is attached to the stopper 32.
By abutting against, the rotation of the ring body 21 is regulated, and the radial stroke of the guide plate 11 is regulated. 33 ... is a pin
31 Hole for mounting. That is, by changing the mounting position of the pin 31, the radial stroke of the guide plate 11 can be changed.

A ring 28 is loosely fitted on the cylinder body 16 of the cylinder mechanism 14, and the ring 28 is connected to the piston rod 14a via a pin 29 protruding from the slit hole 18. In other words, if the piston rod 14a reciprocates,
The ring 28 reciprocates along the axial direction. The ring 28 and the pushing claw 13 are interlockingly connected to each other via a link mechanism 30. Here, the pushing claw 13 is composed of a slide guide 13a and a protrusion 13b.
a is slidably inserted into the slide hole 26, and the protrusion 1
3b protrudes to the outer diameter side through the slide hole 26. Further, as shown in FIG. 3 which is a view in the direction of arrow B of FIG. 1, the link mechanism 30 is connected to the swing arm 30a and one end of the arm 30a, and is provided with a circumferential elongated hole 34 of the ring 28. The guide plate 11 in a radial direction, and a pin 30b slidably inserted into the arm 30a, and a pin 30c connected to the other end of the arm 30a and pivotally attached to a bracket 35 fixed to the pushing claw 13. When reciprocating, the pin 30b slides in the elongated hole 34 of the ring 28 and the reciprocating motion of the cylinder mechanism 14 is transmitted even if the pushing claw 13 follows the reciprocating motion.

Then, in order to fit the lower bead portion 4 of the tire 3 to the bead ring 6 of the lower mold 5 by the upper bead portion fitting mechanism 1 configured as described above, first, as shown in FIG. A guide plate is provided in the hole 10 of the tire 3 placed on the tire receiving stand 36.
11 is inserted, and the guide plate 11 is slid in the outer diameter direction to bring the guide plate 11 into contact with the upper and lower bead portions 7, 4.
In this state, the outer diameter of the guide plate 11 is slightly smaller than the inner diameter of the bead (that is, the inner diameter of the hole 10).
That is, the weight of the tire 3 causes the upper and lower bead portions 7, 4 to descend while slidingly contacting the guide plate 11. Then, when the frame 15 rises, the upper bead portion 7 is locked by the pushing claw 13 and the tire 3 is suspended and held.

Next, from this state, the lower bead portion fitting mechanism 1 is placed on the lower mold 5 of the vulcanizer by raising and turning the frame 15 by the lifting mechanism 86 and the turning mechanism 87 as shown in FIG. At the same time, the frame 15 is lowered to lower the lower bead portion fitting mechanism 1, and the locking claws 12 are brought into contact with the inner peripheral surface 6a of the lower bead ring 6 as shown in FIG. 4I. . As a result, the guide plate 11 is set in the center without being displaced with respect to the lower bead ring 6, and the centering is completed. In this state, the slide guide 13a of the pushing claw 13 is still locked to the upper bead portion 7. After that, as shown in FIG. 4 II, the push-in pawl 13 is lowered by the operation of the cylinder mechanism 14,
When the lower bead portion 4 is pressed downward by the projecting portion 13b, the lower bead 4 is held in a perfect circle by the guide plate 11 as shown in the figure, and is pressed against the bead ring 6 by the pushing claw 13. The lower bead ring 6 is fitted in the parallel state. Due to this action, the lower bead portion 7 causes the lower bead ring 6 to
It is ensured that the lower bead portion 7 is pushed into the bead ring 6 without applying an unreasonable force to the tire constituent materials such as the tire cord and the bead wire.

Then, the guide plate 11 is slid in the inner diameter direction by the operation of the air cylinder mechanism 24 to be disengaged from the bead portions 4 and 7, and is also raised by the operation of the air cylinder mechanism 14, so that the guide plate 11
When the tire 3 is removed from the tire 3, the tire 3 is held with the lower bead portion 4 fitted to the bead ring 6 of the lower mold 5.

Then, the upper bead portion fitting mechanism 2 is attached to the center portion of the upper frame 39 to which the upper mold 8 is attached via the platen 37 and the heat insulating material 38, as shown in FIGS. 6 to 9. Further, the vertical movement member 40 that moves up and down along the axial direction is provided in the hole portion 10 of the tire 3, the pressing member 41 attached to the vertical movement member 40, and the like. The circularity of the bead portion 4 is maintained by moving it in the outer diameter direction and bringing it into contact with the upper bead portion 4.

That is, in FIG. 6, reference numeral 42 denotes a cylinder mechanism vertically provided on the upper frame 43, and the upper frame 43 is held by a plurality of columns 44 erected on the upper frame 39. And
A moving plate 45 is attached to the piston rod 42a of the cylinder mechanism 42, and a cylinder mechanism 46 is vertically provided on the moving plate 45. The moving plate 45 and the vertical moving member 40 are connected by a plurality of connecting columns 65. In the embodiment, the cylinder mechanism 42 is hydraulically operated and the cylinder mechanism 46 is pneumatically operated, but it is not limited to this.

A guide rod 47 is erected on the upper surface of the moving plate 45,
The 44 is provided with a guide block 49, and the guide block 49 is provided with a guide hole 48 in which a guide rod 47 slides along the axial direction. That is, the cylinder mechanism 42
When the piston rod 42a reciprocates, the moving plate 45 does not rotate and is set to move up and down along the axial direction. The columns 44 are erected on a ring-shaped body 50 attached to the outer peripheral edge of the upper opening end of the hole of the upper frame 39.

The vertically moving cylinder 55 is connected to the piston rod 46a of the cylinder mechanism 46, and the vertically moving cylinder 55 moves up and down by the reciprocating motion of the piston rod 46a. That is, as shown in FIG. 7, the flanges 52 and 53 are fixed to the tip of the rod 46a of the cylinder mechanism 46, and the cylinder body 55 having the concave groove 54 on the outer peripheral surface of the lower end is vertically provided on the flange 53. And the cylinder
A hollow rod 56 is inserted in 55. The lower end flange portion 56a of the hollow rod 56 is fixed to the vertical movement member 40.

Thus, the pressing member 41 includes a cylindrical main body portion 58 that is inserted into the insertion hole 57a of the block 57 that is slidable in the radial direction on the vertical movement member 40, and a coil spring that pushes the main body portion 58 upward. The block 57 and the tubular body 55 are interlocked and linked by a link mechanism 60, and the block 57 is slid in the radial direction by the swinging of the ring mechanism 60, thereby pressing the pressing member 41. To reciprocate in the radial direction.

Here, as shown in FIG. 9, the block 57 is interposed between the pair of guide members 61, 61 fixed to the upper surface of the vertically moving member 40 so as to be slidable in the radial direction. The upper bead portion 7 is pushed up by the upper surface of the tip of the block 57 to be fitted into the upper bead ring 9. Support members 63, 63 are erected on the guide members 61, 61.

As shown in FIG. 7, the link mechanism 60 includes a dogleg-shaped connecting arm 60a, one end of which is a tubular body.
The bent portion is pivotally attached to the support members 63, 63 of the guide members 61, 61 via the pin 62, and is connected to the roller 60b fitted in the recessed groove 54 of the block 55 at the other end. A notch portion 82 is formed in which a roller 60c rotatably pivotally attached to 57 is slidably fitted. That is, arm 60a has pin 6
It swings about 2, and the swing causes the block 57 to slide in the radial direction. In FIG. 7, 64 is a pressing member.
In FIG. 9, reference numerals 66, 66 are spacers interposed between the support member 63 and the swing arm 60a, and 6 are rotation preventing pins.
7 is a split pin for preventing the pin 62 from coming off.

Then, a stopper rod 68 is inserted into the hollow rod 56 to regulate the radial stroke of the block 57. That is, the vertical moving member 40 has a hollow rod 56
A hole 69 that is the same as the shaft center is provided, and the hole 69 is provided with a bayonet portion 69a. A fitting portion 68a that fits into the bayonet portion 69a is formed at the lower end of the stopper rod 68, and the rod 68 is moved up and down by fitting the fitting portion 68a into the bayonet portion 69a. It is attached to 40. In addition, the rod 68 is a rotation stop mechanism 70.
This prevents the fitting portion 68a from shifting from the bayonet portion 69a. That is, the anti-rotation mechanism 70 has a rod at the tip.
A locking pin 72 that stops in the recess 71 of 68 and an elastic member 73 such as a coil spring that presses the pin 72 in the inner diameter direction are provided. Incidentally, in order to remove the stopper rod 68, the protrusion 72a of the locking pin 72 is pushed in the outer diameter direction, and the rod 6 is removed.
Turn 8 and pull out. That is, the rod 68 matching the bead diameter of the tire is replaced when changing the size. Note that this mechanism can also have a simple structure with screws.

Therefore, when the piston rod 46a of the cylinder mechanism 46 is lowered from the state shown in FIG. 7, the tubular body 55 is lowered,
As a result, the arm portion 60a swings around the pin 62 as indicated by the arrow X, and the block 57 slides in the outer diameter direction. Then, the tip end surface 74 of the rod 68 contacts the flange 53, thereby restricting the stroke of the piston rod 46a, thereby restricting the radial movement. Conversely, when the piston rod 46a is raised from the state where the tip surface 74 of the rod 68 is in contact with the flange 53, the arm 60a swings in the direction of the arrow Y and the pressing member 4 is shown in FIG. Return to the original state.

Then, as shown in FIG. 8, a position detector 75 such as a rotary encoder is attached to the upper part of the support column 44 via a bracket 76, and the position detector 75 detects the position of the moving plate 45. The operation of the cylinder mechanism 42 is controlled to determine the vertical position (height) of the pressing member 41. That is, the moving plate 45 has a rod
81 is erected and connected to the timing belt by a belt holding member fixed to the rod 81, and transmits the vertical movement of the moving plate 45 to the position detector 75. Further, a timing pulley 77 is attached to the shaft of the position detector 75, and a timing pulley 78 is attached to the lower part of the support column 44 via a bracket 76, and a belt 79 is stretched over the pulleys 77 and 78. It is set up.

Then, in order to fit the upper bead portion 7 of the tire 3 to the bead ring 9 of the upper mold 8 by the upper bead portion fitting mechanism 2 configured as described above, the frame 15 is raised and rotated. The above-described lower bead portion fitting mechanism 1 is retracted to a position above the pedestal 36 outside the vulcanizer, and then the upper mold 8 is lowered by driving means (not shown) to close the mold and at the same time, As shown in FIG. (I), the vertical moving plate 40 is lowered by the operation of the hydraulic cylinder mechanism 42,
40 is inserted into the hole 10 of the tire 3. At this time, the pressing member
The height H of the upper surface of 41 is a height slightly lower than the lower surface of the upper bead ring 9 and is a height that can pass the lower surface of the upper bead ring 9 when the pressing member 41 moves in the outer diameter direction. This position control is performed by the position detector 75 shown in FIG.

Next, as shown in FIG. 10 II, the pressing member 41 is moved in the outer diameter direction (arrow) by the operation of the air cylinder mechanism 46 and brought into contact with the inner peripheral portion W of the upper bead portion 7. As a result, the upper bead portion 7 is corrected into a perfect circle. This moving stroke is set to a size corresponding to the inner diameter of the bead of the tire 3 by the stopper rod 68 (see FIG. 7). next,
As shown in FIG. 10 III, the block 57 rises by the returning operation of the air cylinder mechanism 42, and the tip portion Y pushes up the upper bead portion 7 from below, and the bead portion 7 is beaded along the pressing member 41. Slide while holding parallel to the ring 9,
The upper bead portion 7 is pushed into and fitted into the bead ring 9 of the upper mold 8. This ensures that the bead portion of the unvulcanized tire is set regardless of any deformation, and that the bead wire or the carcass cord is not unduly deformed or distorted. In this case, the main body 58 of the pressing member 41 slides downward against the elastic force of the elastic member 59.

Thereafter, the forward / backward movement of the air cylinder mechanism 42 lowers the vertical movement part 40 to the height H of the pressing member 41 at the upper surface of FIG. 10I, and the backward movement of the air cylinder mechanism 46 causes the pressing member 41 to return.
When 41 is moved in the inner diameter direction and separated from the bead ring 9, the upper and lower bead portions 7 and 4 are completely fitted to the bead rings 9 and 6 of the upper and lower molds 8 and 5, as shown in FIG. 10 IV. It can be in a closed state.

Next, when the air cylinder mechanism 42 returns, the vertical movement member 40
As shown in FIG. 6, the bead ring 9 is raised and pulled into the spigot portion 9a of the bead ring 9. And the bladder 80 for vulcanization
Is introduced into the tire 3, a shaping medium is introduced, and a normal vulcanization cycle is shaped, and the upper and lower molds 8 and 5 are completely closed to start the vulcanization cycle.

Note that the present invention is not limited to the above-described embodiments, and design changes can be freely made without departing from the gist of the present invention.
A cylinder mechanism is used as a drive mechanism for each member in both the lower bead portion fitting mechanism 1 and the upper bead portion fitting mechanism 2, but, of course, other drive such as a motor and screw combination mechanism is used. You are free to use any means, and
In the above-mentioned embodiment, the one using the bladder for vulcanization is shown, but of course, it can be applied to a bladderless type vulcanizer by sealing the vertical moving member 40 and the like.

〔The invention's effect〕

Since the present invention is configured as described above, it has the following effects.

The bead portions 7, 4 can be reliably fitted to the bead rings 9, 6 regardless of some deformation of the upper and lower bead portions 7, 4 due to deformation of the unvulcanized tire 3 during storage.

At the time of fitting, the bead portions 7 and 4 and the bead rings 9 and 6 are mechanically and reliably aligned with each other, and the upper and lower bead portions 7 and 4 are held in parallel and in a perfect circle. Since it is set, no unreasonable force is applied to the bead portions 7 and 4, particularly the bead wire and the carcass cord, so that no distortion occurs.

As a result, the uniformity of finished tires is greatly improved.

Does not consume a large amount of compressed air and does not increase the lining cost.

Since it is not necessary to provide a bead fitting mechanism in the vicinity of the lower bead ring 6, it can be applied to a vulcanizer using a bladder, and the lower bead portion 7 can be surely fitted by a mechanical method that does not depend on air inflation.

It is possible to handle tires with various bead diameters by simple adjustment.

[Brief description of drawings]

FIG. 1 is a sectional view of the lower bead portion fitting mechanism, FIG. 2 is a plan view, FIG. 3 is a simplified sectional plan view, FIG. 4 is an operation explanatory view of the lower bead portion fitting mechanism, and FIG. Simplified overall view of the tire mounting device, FIG. 6 is a sectional view of the upper bead fitting mechanism, FIG. 7 is an enlarged sectional view of essential parts, FIG. 8 is a side view of essential parts, FIG. 9 is an enlarged plan view of essential parts, FIG. 10 is an operation explanatory view of the upper bead portion fitting mechanism. FIG. 11A is a simplified diagram of a conventional example, and FIG. 11B is a simplified diagram of a shaping state. 1 ... Lower bead part fitting mechanism, 2 ... Upper bead part fitting mechanism, 3 ... Unvulcanized tire, 4 ... Lower bead part, 5 ...
Lower mold, 6,9 …… Bead ring, 6a …… Inner peripheral surface, 6b
...... Upper edge, 7 ... Upper bead part, 7 ... Upper mold, 10
…… Hole, 11 …… Guide plate, 12 …… Locking claw, 13 …… Pushing claw, 27 …… Lower edge, 36 …… Tire pedestal, 39 …… Upper frame, 40
...... Up and down moving member, 41 ...... Pressing member, 85 ...... Transfer mechanism.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Tsutomu Kobayashi 5-9-11 Gogaoka, Toyota City, Aichi Prefecture (72) Inventor Masaaki Ijiri 4-2-1 Shiratori, Togo Town, Aichi District, Aichi Prefecture Oshikusa housing complex 408-407 ( 72) Inventor Nobuhiko Irie 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard (72) Inventor Akira Hasegawa 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard ( 72) Inventor Hideaki Katayama 1-1, Atsunoura-machi, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (72) Inventor Toshifumi Murakami 1-1, Atsunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard ( 72) Inventor Katsuyoshi Sakaguchi 1-1, Atsunoura-cho, Nagasaki-shi, Nagasaki Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (56) Reference JP-A-60-120021 (JP A) Patent Akira 62-299308 (JP, A) JP Akira 50-3181 (JP, A)

Claims (2)

[Claims] 1. An unvulcanized tire 3 in which the axial direction of the hole 10 is substantially vertical is loaded into an open vulcanizer,
After that, the lower bead portion 4 is attached to the bead ring 6 of the lower mold 5.
In the method of mounting the tire on the vulcanizer, in which the upper bead portion 7 is fitted to the bead ring 9 of the upper mold 8, the tire is attached to the vulcanizer at a predetermined pitch along the circumferential direction in the radial direction. After moving a plurality of guide plates 11 capable of reciprocating in the outer diameter direction to abut against the upper and lower bead portions 7 and 4 of the tire 3, the lower end edge 27 of the guide plate 11 is lower-molded. 5 bead rings 6
The inner peripheral surface 6a of the bead ring 6 by contacting the upper edge 6b of the
To the lower side of the tire 3 by engaging the locking claw 12 attached to the guide plate 11 from the inner diameter side, and then lowering the pushing claw 13 attached to the guide plate 11 so as to be vertically movable. 4 is pressed downward to fit the bead ring 6, and then the pressing member 41 of the vertical moving member 40 provided in the center of the upper frame 39 of the vulcanizer.
Is moved in the outer diameter direction to abut on the upper bead portion 7, and the vertical moving member 40 is raised to move the upper mold 8
A method of mounting a tire on a vulcanizer, characterized in that the upper bead portion 7 of the tire 3 is fitted to the bead ring 9. 2. An unvulcanized tire support 36 is removably inserted in a hole 10 of an unvulcanized tire 3 along an axial direction and reciprocally movable in a radial direction. A plurality of guide plates 11 ... Abutting on the upper and lower bead portions 7, 4 of the tire 3 are arranged at a predetermined pitch along the circumferential direction, and the lower end edges 27 of the guide plates 11 ... A locking claw 12 that is in contact with the inner peripheral surface 6a of the bead ring 6 while being in contact with the upper end edge 6b of the bead ring 6 is attached to the lower portion of the guide plate 11; With the bead portion 7 supported, a pushing claw 13 for loading the tire 3 into the vulcanizer from the tire receiving base 36 via the transfer mechanism 85 is vertically moved along the axial direction of the guide plate 11. And the lower bead portion 4 of the tire 3 is pushed downward by the downward movement of the pushing claw 13.
The lower bead portion fitting mechanism 1 to be fitted to the bead ring 6, and the unadded state in which the lower bead portion 4 is fitted to the bead ring 6 of the lower mold 5 by the lower bead portion fitting mechanism 1. A vertically moving member 40 that vertically moves along the axial direction is provided in the hole 10 of the vulcanized tire 3 at the center of the upper frame 39 of the vulcanizer, and the vertically moving member 40 is provided along the radial direction. A pressing member 41 that reciprocates is additionally provided, and the pressing member 41 is moved in the outer diameter direction to abut against the upper bead portion 7, and the vertical moving member 40 is raised to raise the bead ring 9 of the upper mold 8. Upper bead portion fitting mechanism 2 for fitting the upper bead portion 7 of the unvulcanized tire 3 to the
And a tire mounting device for a vulcanizer.