JPH0637086B2 - Raw tire receiving method and raw tire receiving device - Google Patents

Description

The present invention relates to a raw tire receiving method and a raw tire receiving device.

[Conventional technology]

Generally, raw tires are molded and then stored on a stock rack, transported by a conveyor or a carrier, placed on a tire pedestal near the vulcanizer, and carried into the vulcanizer. .

Therefore, as shown in FIG. 10 (I), the raw tire a is placed on a horizontal mounting portion b such as a conveyor so that the axial center thereof is vertical.
If the lower bead part c is placed for a long time, the lower bead part c is deformed by depression from the normal state shown by the phantom line as shown by the solid line, and as shown in FIG. If b is leaned against the b for a long time, the upper bead portion d and the lower bead portion c may be deformed from a predetermined regular shape in which they are parallel to each other. The regular shape means the shape of the green tire immediately after molding. Also,
The deformation of the tire is remarkable when the sidewall has a small rigidity and a large overall weight.

[Problems to be Solved by the Invention]

When the raw tire a is put into a vulcanizer with the bead portions d and c deformed and vulcanized, the bladder is set correctly because the dimension between the upper and lower bead portions d and c is not normal during shaping. If not done, the cord path (the length of one tire cord between the beads) is deformed unreasonably, and the sidewall part is also deformed, so the air inside the raw tire cannot be removed well, and defects due to residual air remain. (Bearness). Further, when the mold is fully closed, the upper and lower bead portions d and c are not properly set in the bead ring of the vulcanizer, so that the bead portions d and c are unduly deformed and the tire uniformity is deteriorated.

Therefore, it is an object of the present invention to provide a raw tire receiving method and a raw tire receiving device that corrects the raw tire into a predetermined regular shape before receiving the raw tire into a vulcanizer.

[Means for Solving the Problems]

In order to solve the above-mentioned object, the first method of the raw tire receiving method according to the present invention is to provide a plurality of upper bead portion engaging claws arranged in the circumferential direction on the inner surface of the upper bead portion of the raw tire. While being releasably locked to, a plurality of lower bead portion locking claws arranged along the circumferential direction are releasably locked to the inner surface of the lower bead portion of the raw tire, and then, In this state, the upper bead portion locking claws are moved upward or the lower bead portion locking claws are moved downward to increase the dimension between the upper and lower bead portions, and the raw tire is formed into a predetermined regular shape. The second method is to engage and disengage a plurality of upper bead portion engaging claws arranged along the circumferential direction on the inner surface of the upper bead portion of the green tire. A plurality of lower bead locking claws that are stopped and are arranged along the circumferential direction. Then, the upper bead part locking claw is moved upward or the lower bead part locking claw is moved downward in the state in which the upper bead part locking claw is detachably locked. The intermediate size is enlarged, and the raw tire is heated and modified into the predetermined regular shape while receiving the raw tire while maintaining the predetermined regular shape in which the upper bead portion and the lower bead portion are in a parallel state. It is a thing. The first device of the raw tire receiving device according to the present invention is provided with a plurality of devices in the circumferential direction, and is engaged with the upper bead portion for detachable engagement with the inner surface of the upper bead portion of the raw tire. A plurality of stop claws; a plurality of stopper claws for the lower bead portion, which are arranged along the circumferential direction and are releasably engaged with the inner surface of the lower bead portion of the raw tire; The upper bead portion and the lower bead portion are parallel to each other by moving the upper bead portion and the lower bead portion in parallel with each other by moving the upper bead portion upward by moving the upper bead portion locking claw downward. A bead portion size enlarging mechanism that corrects the shape to a regular shape; and a plurality of second devices are arranged along the circumferential direction and are engaged with the inner surface of the upper bead portion of the raw tire. Upper bead portion locking claws that are detachably locked; a plurality of locking claws are provided along the circumferential direction A lower bead locking claw releasably locked to the inner surface of the lower bead of the green tire; a lower bead locking claw releasably locked to the inner surface of the lower bead; The locking bead for the lower bead portion is moved downward to increase the dimension between the upper and lower bead portions, and the raw tire is corrected to a predetermined regular shape in which the upper bead portion and the lower bead portion are in a parallel state. And a heating mechanism that heats the green tire. In these devices, the lower bead portion locking claws are locked to the inner surface of the lower bead portion. It is preferable to include a bead portion dimension enlarging mechanism that pushes the lower bead portion downward by its own weight of the lower bead portion engaging claw and the holding portion thereof to enlarge the dimension between the upper and lower bead portions. .

[Action]

According to the raw tire receiving method and the raw tire receiving device of the present invention, the upper bead portion locking claw is locked to the inner surface of the upper bead portion of the raw tire, and the lower bead portion locking claw is provided under the raw tire. If it is locked on the inner surface of the bead part and the dimension between the bead parts is enlarged in that state, it will be corrected to a predetermined regular shape, therefore,
If this state is maintained for a certain period of time, this raw tire will return to a predetermined regular shape, so if the raw tire is put into the vulcanizer in this state, it is possible to always provide a stable product without producing defective products. it can.

Further, if the raw tire is heated during the correction, the rigidity of the sidewall portion can be particularly lowered, and the correction can be assisted.

〔Example〕

 Hereinafter, the present invention will be described in detail with reference to the drawings illustrating examples.

1 and 2 show a raw tire receiving device according to the present invention,
This device receives and holds the raw tire 1 before putting it into the vulcanizer, and engages the upper bead portion with the inner bead 2a of the raw tire 1 in a detachable manner. 3, a lower bead portion locking claw 5 that is detachably locked to the inner surface 4a of the lower bead portion 4 of the green tire 1, and a dimension between the upper and lower bead portions 2 and 4 by moving the lower bead portion 4 downward. It is provided with a bead portion size enlarging mechanism 6 for enlarging L, etc., and corrects the raw tire 1 into a predetermined regular shape.

Then, the upper bead portion engaging claws 3 are swingably attached to a plurality of engaging claw holding legs 8 that are erected on the receiving plate 7, and as shown in FIG. A plurality of pieces (four pieces in total at a 45 ° pitch in the illustrated example) are arranged along the direction.

That is, the holding leg 8 is connected to the receiving plate 7 via the radial adjustment mechanism 9.
And is slid along the radial direction as shown by arrows A and B. Here, the adjusting mechanism 9 is composed of a receiving plate 10 on which the holding legs 8 are erected, and a fixing member 11 for connecting and fixing the receiving plate 10 and the receiving plate 7. That is, the radial elongated hole 12 of the receiving plate 10
The fixing member 11 is inserted through, and the screw portion 11a of the fixing member 11 is screwed into the screw hole 13 of the receiving plate 7, and the receiving plate 10 is fixed to the receiving plate 7. Therefore, by loosening the fixing member 11,
By sliding 10 along the long hole 12 in the direction of arrow A or B and tightening the fixing member 11 again at a desired position, the receiving plate 10 is fixed at that position, so that the radial direction of the holding leg 8 is reduced. The position can be changed to accommodate changes in the bead diameter. 14 is a handle, and as shown by the phantom line,
The fixing member 11 can be easily screwed back and forth by gripping the handle 14 with a hand and rotating it as indicated by an arrow in a state where it is substantially perpendicular to the axis of the shaft 11a.

Thus, the upper bead portion locking claw 3 has a V-shaped cross section, and the upper portion thereof is a locking piece portion 3a that locks with the inner surface 2a of the upper bead portion 2. Also, below the bent portion 3b is 4A.
As shown in FIG. 4 to FIG. 4D, the lower bead portion 4 is an abutting piece portion 3c with which the lower bead portion 4 abuts. Then, the pivot support pieces 15, 15 are provided in a protruding manner on the back surface side of the contact piece portion 3c near the bent portion 3b.
Further, the pivot shaft 16 is inserted through the holding leg 8, and the locking claw 3 is swingable around the pivot shaft 16 as shown by arrows C and D. Further, the bent portion 3b and the holding leg 8 are connected by an elastic member 17 such as a coil spring, the engaging portion 3a is always pulled downward, and the contact piece 3c is held at a predetermined angle with respect to the holding leg 8. It has been expanded. Reference numeral 18 denotes a locking piece protrudingly provided on the back surface side of the bent portion 3b, and 19 denotes a locking piece protrudingly provided on the back surface side of the holding leg 8.

Next, a plurality of lower bead portion engaging claws 5 are provided along the circumferential direction of the holding portion 20 (in the example shown, four upper bead portion engaging claws 3 are alternately provided as shown in FIG. 2). ) Attached.

Thus, the holding unit 20 includes a base 21, a box 22 standing on the base 21, and a cylinder mechanism 23 installed inside the box 22.
And the like, and the piston rod 23a of the cylinder mechanism 23.
The reciprocating movement causes the locking claw 5 to swing.

A roller 24 is attached to the upper end of the locking claw 5, and the roller 24 is internally held by an inner member 25 connected to the piston rod 23a of the cylinder mechanism 23. Here, the inner member 25 means the upper and lower disc-shaped bodies 28, 29 and the disc-shaped bodies 28, 29.
And a connecting column 30 for connecting the upper and lower discoid bodies 28,
The roller 24 is internally provided between the 29. The lower disc-shaped body 29
The upper part of the box is frustoconical, and the four side walls 26 of the box 22 are
A notch portion 27 is formed in the ..., the locking claw 5 is exposed to the outside through the notch portion 27, and arrows E, F are provided through a pivot shaft 31 attached to the side wall 27. It is possible to swing like. Reference numeral 32 denotes a protruding rod that is continuously provided from the inner member 25, is coaxial with the piston rod 23a, and is reciprocally inserted into the through hole 33a of the upper wall 33 of the box body 22, and its upper end is A nut member 35 and a box body are attached to the screw portion 34 in which the screw portion 34 is formed.
An abutment ring 38 that abuts a spacer 37 that is attached to the upper wall 33 of the 22 through a magnet 36 is screwed.

Then, when the piston rod 23a is retracted from the state shown in FIG. 1, the inner member 25 descends, and the locking claw 5 swings around the pivot 31 in the arrow E direction, and the 4B It will be in the state shown in the figure. Also, from the state shown in FIG.
When 23a is extended, the inner member 25 rises and returns to the original state shown in FIG.

Then, on the base 21, as shown in FIG.
39, 39 are connected, and a push-up cylinder 40 for pushing up the holding portion 20 is attached to the base 7, and the holding portion 20 is guided to the guide rods 39, 39 by the reciprocating movement of the piston rod 40a of the cylinder 40. It reciprocates in the vertical direction. The receiving plate 49 at the upper end of the piston rod 40a and the base plate 21 only contact but are not connected. Therefore, this thrust cylinder 40
Then, the holding portion 20 and the inter-bead portion dimension enlarging mechanism 6 are formed.

Further, the base 21 is provided with a heating mechanism 41 for heating the raw tire 1 during tire repair, if necessary. Specifically, a hot air generator is used, and this hot air generator has a heating element portion 42 such as an electric heater, and the heating element portion 42 is supplied with compressed air from a compressed air supply source (not shown). Supply tube
The heated air is blown out through the air outlet 43 and is blown out from the air outlet 44.

In FIG. 1, reference numeral 45 denotes a weight body which is detachably attached to the upper wall 33 of the box body 22 via a magnet 46, and 47.
Is a rubber sheet body fixed to the weight body 45 and the upper edge of the rear bead side of the upper bead portion locking claw 3. The rubber sheet body 47 has a ring shape in the illustrated example, but may have a disk shape.

Next, a raw tire receiving method using the above-mentioned raw tire receiving device will be described.

First, in the state shown in FIG. 1, that is, in the standby state,
The piston rod 40a of the push-up cylinder 40 is brought to the most extended state or a state close thereto, and the cylinder mechanism 23
The piston rod 23a is extended to bring the inner member 25 into contact with the upper wall 33 of the box body 22. Further, in this case, the upper end edge portion 48 of the engaging portion 3a of the engaging claw 3 is located on the inner diameter side of the upper and lower bead portions 2 and 4 of the raw tire 1 whose axial center coincides with the axial center of the holding portion 20. .

Then, in this state, the raw tire 1 is vertically inserted and lowered substantially along the axis. Therefore, the lower bead portion 4
Is first contacted with the contact piece 3c of the locking claw 3 and the raw tire 1 is further lowered, so that the locking claw 3 resists the elastic force of the elastic member 17 and FIG. As shown in FIG. 7, the state shown by the phantom line swings to the state shown by the solid line, and the tip edge portion 48 of the engaging portion 3a of the engaging claw 3 engages with the inner surface 2a of the upper bead portion 2.

Next, from this state, the piston rod 23 of the cylinder mechanism 23
a is retracted as shown by the arrow to lower the inner member 25, the locking claw 5 is swung in the direction of arrow E, and the locking claw 5 is moved to the lower bead as shown in FIG. 4B. It is located above the section 4.
Then, in this state, the piston rod 40a of the push-up cylinder 40 is retracted as shown by the arrow, the locking claw 5 is lowered as shown by the arrow, and the tip edge 5a of the locking claw 5 is moved to the inner surface 4a of the lower bead portion 4.
And the receiving plate 49 of the piston rod 40a is brought into the retracted state as shown by the phantom line in FIG. 4C. Therefore,
The lower bead portion 4 is pushed downward by its own weight of the locking claw 5 and its holding portion 20, etc., and the state shown by the phantom line is shown by the solid line, and the upper bead portion 2 and the lower bead portion 4 are made parallel. It is corrected to a predetermined regular shape. Further, in this case, the green tire 1 is heated by the heating mechanism 41, the rigidity of the sidewall portion is reduced, and the correction is more easily and effectively performed. That is, hot air is blown out from the outlet 44 that is inclined and opened upward, and the inside of the raw tire 1 is warmed and the rigidity of the sidewall portion is reduced.

Then, in this state, for example, if the timer is held for a certain period of time, the raw tire 1 returns to a predetermined regular shape and is corrected. Therefore, the piston rod 40a of the push-up cylinder 40 is pushed up to raise the holding portion 20, and the piston rod 23a of the cylinder mechanism 23 is raised to raise the internal member 25, and the locking claw 5 is rocked as indicated by arrow D. 4D, and then the pawl 50 of the vertical loader is locked to the inner surface 2a of the upper bead portion 2 between the locking pawls 3 and lifted as indicated by the arrow to take out the raw tire 1. .

Here, the weight body 45 is for adjusting the load on the lower bead portion 4 when the raw tire 1 is modified, and the spacer 37 is for adjusting the swing amount of the locking claw 5. The expansion amount of the locking claw 5 is restricted by interposing the spacer 37. That is, the weight body 45 and the spacer 37 are replaced with optimum ones according to the type of the raw tire 1. It should be noted that the spacer 37 is made of a ring-shaped body having a notch, and if it is color-coded according to the thickness dimension, it is easy to use. Further, the rubber sheet body 47 is a heating mechanism.
This is for the hot air from 41 to be trapped in the raw tire 1 without escaping from the upper part.

Further, as shown in FIG. 1, the locking claw holding leg 8 has arrows A, B.
Since it is movable in the radial direction as described above, the position of the locking claw 3 in the radial direction can be adjusted by adjusting the holding leg 8. That is, depending on the size of the raw tire 1, the raw tire 1 descends so that the engaging portion 3a of the engaging claw 3 is properly engaged with the inner surface of the upper bead portion 2 as shown in FIG. 4A. Adjusted.

Then, as described above, the raw tire 1 modified into a predetermined regular shape is put into a vulcanizer and vulcanized and molded to manufacture a tire.

Next, FIG. 5 shows a turntable 51 provided with two of the above-mentioned devices to improve work efficiency.
That is, the turntable 51 includes the swing actuator 52.
It is supported in a reversible manner on the support shaft G via. Also,
The swing actuator 52 is attached to a carriage 53 with casters 54, and the turntable 51 is movable.
55 is a stopper and 56 is a control operation panel.

Further, as shown in FIG. 6, it is also preferable to provide three such devices on the rotary table 57 to further improve the work efficiency. That is, for example, in the X position, the waiting state as shown in FIG. 1 is set, in the Y position, the correction state shown in FIGS. 4A to 4C is set, and in the Z position, the extraction shown in FIG. 4D. The turntable 57 is turned on and the turntable 57 is sequentially turned as shown by the arrow. In this case, in order to rotate the table 57, a rotary drive motor is used instead of the swing actuator described above.

Next, FIG. 7 shows another embodiment. In this case, the upper board locking hook 58 is locked to the inner surface 2a of the upper bead 2 of the green tire 1 and the lower bead locking hook 59 is Inner surface 4a of lower bead part 4
The upper bead portion locking claw 58 is moved upward in the state of being locked to the green tire 1 to correct it to a predetermined regular shape.

Thus, the raw tire receiving device in this case includes the raw tire 1 holding member 60 having the lower bead portion engaging claws 59, and the holding member.
A radial reciprocating mechanism 61 that reciprocates 60 in a radial direction, and a bead portion size enlarging mechanism 62 that vertically moves the upper bead portion locking claw 58 along the vertical direction are provided.

Specifically, as shown in FIG. 8, four holding members 60 are arranged along the circumferential direction at a pitch of 45 °, and vertically elongated holes 63 are provided at the upper part and at the lower part. A thick portion 64 is formed. The horizontal shaft 65 is inserted through the thick portion 64, and the holding member 60 reciprocates in the radial direction along the horizontal shaft 65. Further, the horizontal shaft 65 is fixed to a central frame body 66, and the central frame body 66 is provided with legs 68, 68 which are erected on a pedestal 67.
Provided on top. That is, the central frame 66 and the horizontal axis 65
Is fixed.

The reciprocating mechanism 61 includes a cylinder 69 attached to a pedestal 67, an up-and-down moving unit 70 that is connected to a piston rod 69a of the cylinder 69 and moves up and down as shown by an arrow by reciprocating the rod 69a. A link 71 that connects the moving portion 70 and the lower end portion 60a of the holding member 60 is provided. Also, the vertical movement part
A guide rod portion 73 is provided on the upper surface of the 70, and the guide rod portion 73
Is reciprocally inserted into the through hole 72 of the bush 75 fixed to the lower wall 66a of the central frame 66. Reference numeral 76 is a pivot pin that is attached to the vertically moving portion 70 via a mounting piece 78, and 77 is a pivot pin that is attached to the lower end surface 60a of the holding member 60 via a mounting piece 79.

Therefore, when the piston rod 69a of the cylinder 69 moves up and down as shown by the arrow, the up-and-down moving part 70 moves up and down, whereby the holding member 60 reciprocates through the link 71 in the radial direction as shown by the arrow. As shown in FIG. 9, the horizontal shaft 65 is provided with a longitudinal projection 80 on the outer peripheral surface thereof, and the projection 82 is provided on the bearing 82 fitted in the insertion hole 81 of the holding member 60. Is provided with a fitting groove (not shown) that fits so as to be slidable in the longitudinal direction. That is, when the holding member 60 reciprocates in the radial direction, the holding member 60 is set to reciprocate in parallel with the vertical plane without tilting. Reference numeral 83 is a spacer interposed between the bearings 82 and 82.

Next, the enlargement mechanism 62 includes a cylinder mechanism 84 which is erected on the upper wall 66b of the center frame 66, and a horizontal shaft 85 which moves up and down by the reciprocating movement of the piston rod 84a of the cylinder mechanism 84 in the arrow direction.
And the upper bead portion engaging claw 58 is attached to the horizontal shaft 85. That is, the horizontal shaft 85 is provided with a bush 86 and a cylindrical body.
87 is externally fitted, and a locking claw 58 projecting from the outer surface of the holding member 60 is attached to the cylindrical body 87 as shown in FIG.

The upper wall 66b of the central frame 66 is provided with a heating mechanism 41 if necessary.
Is provided, and hot air is blown inside the raw tire 1 during the correction. That is, the heating mechanism 41 has a heating element portion 89 like the heating mechanism 41 shown in FIG. 1, and as shown in FIG. 8, compressed air is not shown in the heating element portion 89. From the air outlet through a relay unit 88 such as a flow rate regulator,
The heated air is blown out from. Further, a holding portion 91 to which a horizontal shaft 85 is fixed is continuously provided at the upper end of the piston rod 84 of the cylinder mechanism 84, and an upper surface 91a of the holding portion 91 is
A rubber sheet body whose outer peripheral portion is attached to the upper surface 87a of the cylindrical body 87.
47 is installed.

Next, a raw tire receiving method using this raw tire receiving device will be described.

First, the piston rod 69a of the cylinder 69 is retracted so that the locking claws 58 and 59 are located on the inner diameter side of the upper and lower bead portions 2 and 4 of the raw tire 1 whose axes match the axes of the device. First, each holding member 60 is moved in the inner diameter direction to the position indicated by the chain double-dashed line. Next, the green tire 1 is introduced vertically along the axis, the lower bead portion 4 is brought into contact with the upper tapered portion of the thick portion 64 of the holding member 60, and the piston rod 69a is extended to hold the holding member. 60 is moved until it comes into contact with the upper and lower bead portions 2 and 4, and the lower end edge 59a of the locking claw 59 is moved to the inner surface 4a of the lower bead portion 4.
To be locked. Also, in this state, the upper and lower bead portions 2,
4 is in contact with the outer surface 92 of the holding member 60, the piston rod 84a of the cylinder mechanism 84 is retracted, and the locking claw 58 is in a state in which the dimension L between the upper and lower bead portions 2 and 4 is not regular. The position is lower than the upper bead portion 2.

Therefore, in this state, extend the piston rod 84a,
When the locking claw 58 is raised, the green tire 1 is enlarged in size L between the upper and lower bead portions 2 and 4 and is corrected to a predetermined regular shape. Further, during the correction, the raw tire 1 is heated by the heating mechanism 41 as needed to assist the correction.
The pushing force of the upper bead portion 2 is adjusted by a pressure reducing valve attached to the cylinder mechanism 84.

Then, after the size L between the upper and lower bead portions 2 and 4 has been enlarged and the correction is completed for a certain period of time, the pawl 50 of the vertical loader as shown in FIG. 4D is attached to the inner surface of the upper bead portion 2.
2a, the vertical reciprocating mechanism 62 lowers the locking claw 58, and the radial reciprocating mechanism 61 moves the holding member 60 in the inner diameter direction to raise the claw 50. , Take out the raw tire 1.

Also, in this case, if the vertical movement part 70 rises, the vertical movement part 70
The spacer 74 attached to the upper surface of the
Since the rising of the holding member 60 is restricted and the movement of the holding member 60 in the outer diameter direction is restricted, if the spacer 74 is replaced,
The amount of movement of the holding member 60 in the outer diameter direction is changed, and it is possible to cope with various raw tire 1 sizes. In the illustrated example, the upper and lower bead portions 2 and 4 of the raw tire 1 are in contact with the outer surface 92 of the holding member 60 in a state where the spacer 74 is not in contact with the lower surface 75a of the bush 75. The upper and lower bead portions 2 and 4 of the raw tire 1 are brought into contact with the outer surface 92 of the holding member 60 with 74 being in contact with the lower surface 75a of the bush 75.

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.
Although the heating mechanism 41 is provided in both the embodiment shown in FIG. 1 and the embodiment shown in FIG. 7, it goes without saying that the heating mechanism 41 may be omitted.
The heating mechanism 41 is composed of an infrared heater or the like,
It is also possible to heat the inside of the raw tire 1, and it is also possible to increase or decrease the number of the locking claws 3, 5, 58, 59 and the heating mechanism 41. Further, in FIG. 1, the bead portion size enlarging mechanism 6 pushes down the lower bead portion 4 downward by its own weight of the locking claws 5 and its holding portion 20, etc. It is also preferable to push the bead portion 4 downward. That is, for example, the piston rod 40a of the push-up cylinder 40 is attached to the base 21, and the holding portion 20 is set to reciprocate in the vertical direction by the cylinder 40.
The piston rod 40a is retracted to lower the holding portion 20 and push the lower bead portion 4 downward.

〔The invention's effect〕

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

The raw tire 1 deformed from the predetermined regular shape is received and held in the state of returning to the predetermined regular shape. Therefore, if the raw tire 1 is put into the vulcanizer in this state, the bladder can be correctly set during shaping, and the cord Since the path is not deformed unreasonably and the side wall portion is not deformed, the air inside the raw tire 1 can be effectively removed, and there is no concern that air residue will occur. Further, when the mold is fully closed, the upper and lower bead portions 2 and 4 are properly set on the bead ring, and the bead portions 2 and 4 are not unduly deformed, so that the uniformity of the finished tire is improved.

Further, if the raw tire 1 is heated during the correction, the correction can be further facilitated, the working time can be shortened, and the working efficiency can be improved.

[Brief description of drawings]

FIG. 1 is a sectional view showing an embodiment of a raw tire receiving device according to the present invention, FIG. 2 is a partially omitted simplified plan view, FIG. 3 is a simplified side view of essential parts, and FIGS. 4A and 4B. FIGS. 4C and 4D are explanatory views of the operation, FIG. 5 is a side view showing a modified example, FIG. 6 is a simplified plan view showing another modified example, and FIG. FIG. 8 and FIG. 8 are partially omitted simplified plan views, and FIG. 9 is a cross-sectional view of the horizontal axis. FIG. 10 is a simplified diagram showing a state in which the green tire is deformed. 1 ... raw tire, 2 ... upper bead part, 2a ... inner surface, 3 ...
… Upper bead part locking claws, 4 …… lower bead part, 4a …… inner surface, 5 …… lower bead part locking claws, 6 …… bead part dimension expansion mechanism, L …… upper and lower bead part dimension .

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Yoshiya Kubota 21-23 Shimobanto, Shiga-cho, Toyota-shi, Aichi (72) Inventor Masaji Okamoto 1-27-10-10 Aoki-cho, Toyota-shi, Aichi (72) Inventor Kobayashi Commerce 5-9-11 Gogaoka, Toyota City, Aichi Prefecture (72) Inventor Masaaki Ijiri 4-2-1 Shiratori, Togo Town, Aichi District, Aichi Prefecture 408-407 Oshikusa Estate (72) Inventor Nobuhiko Irie 1 Atsunoura Town, Nagasaki City, Nagasaki Prefecture No. 1 Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (72) Inventor Akira Hasegawa 1-1 Akinoura-cho, Nagasaki City, Nagasaki Prefecture No. 1 Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard (72) Inventor Hideaki Katayama 1 Akinoura-cho, Nagasaki City, Nagasaki Prefecture No. 1 Mitsubishi Heavy Industries, Ltd. Nagasaki Shipyard (72) Inventor Toshifumi Murakami 1-1, Atsunouracho, Nagasaki City, Nagasaki Prefecture Mitsubishi Heavy Industries Ltd. Nagasaki Shipyard (72) Inventor Sakaguchi Good Nagasaki, Nagasaki Prefecture Akunoura-cho, No. 1 No. 1 Mitsubishi Heavy Industry Co., Ltd. in Nagasaki Shipyard

Claims (5)

[Claims] 1. A plurality of upper bead portion engaging claws 3 ..., 58 ... Arranged along the circumferential direction are detachably engaged with the inner surface 2a of the upper bead portion 2 of the raw tire 1, and A plurality of lower bead portion engaging claws 5, 59 arranged along the circumferential direction are detachably engaged with the inner surface 4a of the lower bead portion 4 of the raw tire 1, and then the state Then, the locking bead 3 for the upper bead portion,
58 ... is moved upward or the lower bead portion locking claw 5
, 59 ... are moved downward to increase the dimension L between the upper and lower bead portions 2 and 4, and the raw tire 1 is modified into a predetermined regular shape to receive the raw tire. 2. A plurality of upper bead portion engaging claws 3, ..., 58 arranged along the circumferential direction are detachably engaged with the inner surface 2a of the upper bead portion 2 of the raw tire 1, and A plurality of lower bead portion engaging claws 5, ..., 59 arranged along the circumferential direction are detachably engaged with the inner surface 2a of the lower bead portion 2 of the raw tire 1, and then the state Then, the locking bead 3 for the upper bead portion,
58 ... is moved upward or the lower bead portion locking claw 5
, 59 ... are moved downward to increase the dimension L between the upper and lower bead portions 2 and 4, so that the raw tire 1 has a predetermined regularity in which the upper bead portion 2 and the lower bead portion 4 are in a parallel state. A method of receiving a raw tire, characterized in that the raw tire 1 is heated while being kept in a shape and is corrected to have a predetermined regular shape. 3. A plurality of elements are arranged along the circumferential direction, and
A plurality of upper bead portion locking claws 3, 58, which are detachably locked to the inner surface 2a of the upper bead portion 2 of the raw tire 1, and a plurality of which are arranged along the circumferential direction, and the lower portion of the raw tire 1 The lower bead locking claws 5, 59, which are releasably locked on the inner surface 4a of the bead 4, and the upper bead locking claws 3, 58, are moved upward or the lower bead is moved. , 59 ... are moved downward to increase the dimension L between the upper and lower bead portions 2 and 4, so that the raw tire 1 is brought into a state where the upper bead portion 2 and the lower bead portion 4 are parallel to each other. A raw tire receiving device comprising: a bead portion size enlarging mechanism 6, 62 for correcting to a predetermined regular shape. 4. A plurality of units are arranged along the circumferential direction, and
A plurality of upper bead portion locking claws 3, 58, which are detachably locked to the inner surface 2a of the upper bead portion 2 of the raw tire 1, and a plurality of which are arranged along the circumferential direction, and the lower portion of the raw tire 1 Lower bead part 4 which is detachably engaged with the inner surface 4a of the bead part 4
Lower bead locking claws 5, which are removably locked on the inner surface 4a,
59, and the upper bead portion engaging claws 3, 58, and the upper bead portion engaging claws 5, 58 are moved downward to move the upper and lower bead portions 2, 4 A bead portion dimension enlarging mechanism 6,62 for enlarging L to correct the raw tire 1 into a predetermined regular shape in which the upper bead portion 2 and the lower bead portion 3 are in a parallel state, and the raw tire 1 A raw tire receiving device, comprising: a heating mechanism 41 for heating the tire. 5. The lower bead portion engaging claw 3 is provided on the inner surface of the lower bead portion 4.
In the state of being locked to the 4a, the lower bead portion 4 is pushed downward by its own weight of the lower bead portion locking claw 5 and the holding portion 20 thereof, and the dimension L between the upper and lower bead portions 2 and 4 is enlarged. The raw tire receiving device according to claim 3 or 4, further comprising a bead portion dimension enlarging mechanism 6.