Bladder mounting pallet

Abstract

To improve work efficiency in bladder replacement work.SOLUTION: A bladder mounting pallet 30 disclosed here includes: a base 40 having a pair of insertion holes 41 into which a pair of claws of a lifter are inserted; a rotary table 50 disposed on the base 40; and a plurality of bladder mounting portions 31 provided on un upper surface of the rotary table 50. A rotation axis of the rotating table 50 may be set so as to rotate along an upper surface of the base 40. The bladder mounting portion 31 may be formed in a ring shape.SELECTED DRAWING: Figure 2

Description

[Technical Field]

[0001] The present invention relates to a bladder-mounting pallet. [Background technology]

[0002] Japanese Patent Application Laid-Open Publication No. 2014-040251 discloses a tire pallet including a base, a front side support portion and a rear side support portion provided on the top surface of the base at a distance from each other in the front-rear direction, and a pair of left and right side portions extending upward from both left and right ends of the base. The front side support portion is configured to be movable with a front-rear middle portion of the front side support portion as a first fulcrum. When no tire is loaded, the upper surface of the front side support portion is configured to be inclined downward from the rear side to the front side. The rear side support portion is configured to be movable with a front-rear middle portion of the rear side support portion as a second fulcrum. When no tire is loaded, the upper surface of the rear side support portion is configured to be inclined downward from the front side to the rear side. This tire pallet is said to allow tires to be smoothly placed on the pallet while rolling on the floor surface, and to store tires in a stable state. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2014-040251 Summary of the Invention [Problem to be solved by the invention]

[0004] The present inventors have been considering improving the workability of replacing a bladder attached to a tire vulcanizer. [Means for solving the problem]

[0005] The bladder-mounting pallet disclosed herein comprises a base having a pair of insertion holes into which a pair of claws of a lifter are inserted, a rotating table arranged on the base, and a plurality of bladder-mounting sections provided on the upper surface of the rotating table. [Effects of the Invention]

[0006] By using a bladder-mounting pallet having such a configuration, the workability of the bladder replacement operation is improved. [Brief explanation of the drawings]

[0007] [Figure 1] FIG. 1 is a schematic diagram of a tire vulcanizer 1. As shown in FIG. [Figure 2] FIG. 2 is a perspective view of the bladder mounting pallet 30. As shown in FIG. [Figure 3] FIG. 3 is a schematic diagram showing the internal structure of the bladder mounting pallet 30. As shown in FIG. [Figure 4] FIG. 4 is a schematic diagram showing the rotary table 50 and the pin 60. As shown in FIG. [Figure 5] FIG. 5 is a schematic diagram showing the rotary table 50 and the pin 70. As shown in FIG. DETAILED DESCRIPTION OF THE INVENTION

[0008] An embodiment of the present invention will be described below with reference to the drawings. Note that the present invention is not limited to the following embodiment. Each drawing is a schematic representation and does not necessarily reflect the actual product. Furthermore, each drawing shows only an example and does not limit the present invention unless otherwise specified. Furthermore, members and parts that perform the same function are appropriately designated by the same reference numerals, and redundant explanations will be omitted.

[0009] <Tire vulcanizer 1> Fig. 1 is a schematic diagram of a tire vulcanizer 1. Fig. 1 shows a schematic cross section of the tire vulcanizer 1 with a raw cover R attached. As shown in Fig. 1, the tire vulcanizer 1 includes a tire vulcanizing mold 10, a bladder center mechanism 20, and a bladder 21.

[0010] <Tire curing mold 10> The tire vulcanizing mold 10 includes a tread mold 11 and a pair of side molds 16, 17. When vulcanizing the low cover, the low cover R is heated and pressurized in the tire vulcanizing mold 10 to mold the tire.

[0011] The tread mold 11 is a mold member that molds the tread portion on the radially outer side of the raw cover R. The tread mold 11 molds the tread portion of the raw cover R that is held by the bladder 21. Although detailed illustration is omitted, a plurality of tread molds 11 are lined up along the circumferential direction of the raw cover R. Before the tire is vulcanized, the plurality of tread molds 11 are lined up with a required interval between adjacent tread molds 11.

[0012] The tread mold 11 is configured to be driven in the radial direction by sliders 13 and pushers 14. The tread mold 11 is attached to the radially inner side of each slider 13. The pushers 14 are driven in the vertical direction by a drive device (not shown). When the pushers 14 are driven downward, the inclined surfaces of the pushers 14 come into contact with the inclined surfaces of the sliders 13, causing the sliders 13 to move. During vulcanization, the pushers 14 move downward, causing the sliders 13 to move radially inward.

[0013] The side molds 16, 17 are mold components that mold the sidewall portions of the axial side surfaces of the low cover R. The side molds 16, 17 are formed in an annular shape. The side molds 16, 17 are provided with bead rings 16a, 17a that mold the bead portions of the low cover R. The bead portions of the low cover R are portions that form the radially inner side of the sidewall portions. The bead ring 16a is attached to the side mold 16. The bead ring 17a is placed on the side mold 17.

[0014] The upper side mold 16 is attached to a mold base 16b provided above the tire vulcanizing mold 10. The lower side mold 17 is attached to a mold base 17b provided below. The lower side mold 17 is provided with a holding portion 17c that holds a clamp ring 24 of a bladder center mechanism 20, which will be described later.

[0015] The mold base 16b is attached to, for example, a press machine and is configured to be movable up and down. The mold base 17b is attached to, for example, a press table. Before vulcanization, the upper side mold 16 is held above the lower cover R. During vulcanization, the upper side mold 16 moves downward.

[0016] <Bladder center mechanism 20> The bladder center mechanism 20 is a mechanism for holding the bladder 21 disposed inside the lower cover R. The bladder center mechanism 20 includes the bladder 21, a center post 22, and clamp rings 23 and 24. The bladder 21 is a substantially cylindrical rubber member. The bladder 21 is attached to annular clamp rings 23 and 24. The bladder 21 is held from above and below by the upper and lower clamp rings 23 and 24. In this embodiment, the upper clamp ring 23 is attached to the top of the center post 22 with bolts (not shown). The lower clamp ring 24 is attached to the retaining portion 17c with bolts (not shown). By attaching the clamp ring 24 to the retaining portion 17c, the bead ring 17a is sandwiched and fixed between the clamp ring 24 and the side mold 17. Note that the attachment structure of the clamp rings 23 and 24 is not limited to this. The center post 22 is configured to be drivable in the vertical direction by a drive unit (not shown). The gap between the upper clamp ring 23 and the lower clamp ring 24 is adjusted by raising and lowering the center post 22. The center post 22 is raised and lowered as needed when attaching the lower cover R, vulcanizing, replacing the bladder 21, and so on.

[0017] During vulcanization, the tread mold 11 is driven radially inward, and the upper side mold 16 is driven downward. This brings the tire vulcanization mold 10 into a closed state. When the tire vulcanization mold 10 is closed, a high-temperature fluid is introduced into the space inside the bladder 21. This causes the bladder 21 to expand. The expansion of the bladder 21 presses the raw cover R against the tire vulcanization mold 10. During vulcanization, the tread mold 11 and the side molds 16, 17 are also heated. This causes the raw cover R to be vulcanized and molded.

[0018] Although the bladder 21 is made of highly heat-resistant rubber, repeated expansion and contraction caused by the introduction of high-temperature fluid can cause deterioration. For this reason, the bladder 21 needs to be replaced periodically. Furthermore, when the type or dimensions of a tire to be vulcanized and molded in the tire vulcanizer 1 are changed, the bladder 21 needs to be replaced as appropriate. In this embodiment, the bladder 21 is attached to the clamp rings 23, 24 of the bladder center mechanism 20 and the lower bead ring 17a when detached from the tire vulcanizer 1.

[0019] In this embodiment, when replacing the bladder 21, the bolts attaching the clamp rings 23, 24 to the center post 22 and the retaining portion 17c are removed. In this state, the center post 22 is driven downward. The clamp rings 23, 24 to which the bladder 21 is attached and the lower bead ring 17a are lifted, and the bladder 21 is removed from the tire vulcanizer 1. Next, the clamp rings 23, 24 to which a new bladder 21 is attached and the lower bead ring 17a are attached to the tire vulcanizer 1.

[0020] As described above, in tire production, the bladders 21 need to be replaced at appropriate times, and from the viewpoint of productivity, etc., it is preferable that the workability during replacement is good. Furthermore, up until now, workers have carried the bladders 21 to the vulcanizer using a hand lifter and performed the replacement. Specifically, the bladders 21 were replaced in the following procedure. Two new bladders 21 to be attached to the tire vulcanizer 1 are placed on a pallet and moved to the tire vulcanizer 1 using the hand lifter. The hand lifter is raised, and the pallet is placed on a predetermined work bench. The bladders 21 are removed from the tire vulcanizer 1 and placed on the work bench. A new bladder 21 is attached to the tire vulcanizer 1. The removed bladder 21 is placed on the pallet. The second bladder 21 is replaced using the same procedure. The pallet on which the two removed bladders 21 are placed is moved using the hand lifter, and the bladders 21 are put away in their predetermined positions. In response to this, the present inventors are considering using a forklift to carry in and out the bladder 21. Furthermore, they would like to improve the workability when replacing the bladder 21.

[0021] <Bladder mounting pallet 30> Bladder loading pallet 30 is a pallet for a forklift to transport a plurality of bladders 21. FIG. 2 is a perspective view of bladder loading pallet 30. FIG. 3 is a schematic diagram showing the internal structure of bladder loading pallet 30. As shown in FIG. 2, bladder loading pallet 30 includes a base 40, a rotating table 50, and a bladder loading section 31. FIG. 2 shows two bladder loading sections 31a on which bladders 21 are loaded and two bladder loading sections 31b on which no bladders 21 are loaded.

[0022] <Base 40> The base 40 is a platform that supports the rotating table 50, the bladder mounting portion 31, and the like. The base 40 is formed in a substantially rectangular shape in a plan view. The base 40 has a pair of insertion holes 41 into which the claws of a forklift are inserted. The insertion holes 41 penetrate from the side surface 40a of the base 40 to the opposite side surface 40b. This allows the claws of a forklift inserted from one of the side surfaces 40a and 40b to protrude toward the other. This allows the bladder mounting pallet 30 to be held stably.

[0023] The insertion hole 41 has a substantially rectangular cross section cut in the direction from side surface 40a to side surface 40b. The insertion hole 41 is formed so as to be elongated in the long-side direction of side surfaces 40a and 40b. This makes it easier for the claws of a forklift to be inserted into the insertion hole 41. A plurality of insertion holes 41 (two in this embodiment) are formed on each surface. From the viewpoint of stability when lifting the bladder-mounting pallet 30 with a forklift, the insertion hole 41 is preferably provided at the end of the long-side direction of side surface 40a. The insertion hole 41 may be provided, for example, outside the center of the bladder-mounting portion 31. The insertion hole 41 may also be provided on a side surface other than side surfaces 40a and 40b.

[0024] <Rotating table 50> The turntable 50 is disposed on the base 40. In this embodiment, as shown in FIG. 3 , a rotation shaft 42 and support rollers 43 are provided on the upper surface of the base 40, and the turntable 50 is rotatably supported on the base 40 by the rotation shaft 42 and the support rollers 43. The rotation shaft 42 extends upward and is provided at a predetermined center position of the base 40. A plurality of support rollers 43 are provided around the rotation shaft 42 on the upper surface of the base 40. The rotation shafts 43b of the support rollers 43 are rotatably supported by support members 43a attached to the base 40. Here, the rotation shafts 43b of the support rollers 43 are disposed radially of the rotation shaft 42. As a result, the support rollers 43 support the turntable 50 and roll around the rotation shaft 42 in response to the rotation of the turntable 50. Here, as described above, the rotation shaft 42 and the support rollers 43 constitute the rotation mechanism of the turntable 50. The rotation mechanism of the rotary table 50 is not limited to this structure, and various bearing structures used in turntables, such as strut bearings, can be used.

[0025] A handle 54 is provided on the rotating table 50. In this embodiment, the handle 54 extends upward from the top surface of the rotating table 50. The handle 54 is a part that is operated to rotate the rotating table 50 or stop the rotation of the rotating table 50. In this embodiment, the handle 54 is provided near the outer edge of the rotating table 50. This makes the handle 54 easy to operate by an operator operating the rotating table 50. The handle 54 may be provided in multiple locations. Providing the handles 54 in multiple locations on the rotating table 50 can reduce the effort required for an operator to move around to operate the handle 54. Furthermore, in this embodiment, the handles 54 are provided in two locations on either side of the rotation center of the rotating table 50. Providing the two handles 54 at positions separated from each other makes it less likely that the bladder 21 will hit the handles 54, thereby preventing work from being interrupted.

[0026] In this embodiment, the rotating table 50 is configured so that its rotation can be locked by a pin 60. FIG. 4 is a schematic diagram showing the rotating table 50 and the pin 60. FIG. 4 illustrates a state in which the pin 60 is inserted into the rotating table 50 and the rotation of the rotating table 50 is locked. As shown in FIG. 4, the pin 60 has an insertion portion 61 and a handle 62. The insertion portion 61 is a portion that is inserted into the through-hole 50a of the rotating table 50. The handle 62 is a portion that an operator holds when inserting the pin 60 into the through-hole 50a or when removing the pin 60 from the through-hole 50a.

[0027] The rotating table 50 is formed with a through hole 50a into which a pin 60 for locking the rotation of the rotating table 50 can be attached. The through hole 50a is formed near the outer edge of the rotating table 50. The base 40 is provided with a locking portion 44 at a position overlapping the through hole 50a in a plan view. In this embodiment, the locking portion 44 is a hole formed in the base 40. The rotation of the rotating table 50 is locked by inserting the pin 60 into the through hole 50a and the locking portion 44 while the through hole 50a and the locking portion 44 are overlapping. Note that the locking portion 44 is not limited to a hole formed in the base 40. The locking portion 44 may be, for example, a member provided on the upper surface of the base 40 and through which the pin 60 can be inserted.

[0028] As shown in Fig. 2, two through-holes 50a are provided near the outer edge of the turntable 50, sandwiching the center of rotation of the turntable 50. By inserting a pin 60 into at least one of the two through-holes 50a, the turntable is prevented from rotating. When the pin 60 is not inserted into either of the two through-holes 50a, the turntable 50 can be rotated.

[0029] In this embodiment, the through holes 50a are provided in two locations on the rotating table 50, but the number of locking portions 44 and the number of through holes 50a are not particularly limited. The number of locking portions 44 may be greater than the number of through holes 50a (for example, four or more locations). By providing more locking portions 44, the angle at which the rotation of the rotating table 50 is locked can be set more precisely. This makes it easier to move the bladder 21 to a position that is convenient for work.

[0030] To lock the rotation of the rotating table 50, the through-hole 50a and the locking portion 44 must be aligned. At least one of the rotating table 50 and the base 40 may have a mechanism that stops the through-hole 50a at the position of the locking portion 44. For example, the rotating shaft 42 may be provided with a clutch mechanism that stops the rotation of the rotating table 50 at a predetermined position (the position where the through-hole 50a and the locking portion 44 are aligned). This makes it easier to stop the rotation of the rotating table 50 at a specified position, facilitating insertion of the pin 60, and improving operability.

[0031] The mechanism for locking the rotation of the rotating table 50 is not limited to this. For example, the pin may be held by the rotating table 50. FIG. 5 is a schematic diagram showing the rotating table 50 and the pin 70. In the embodiment shown in FIG. 5, a holder 75 is attached to the rotating table 50. The pin 70 is held on the rotating table 50 by the holder 75. The holder 75 is formed in a cylindrical shape extending upward from the rotating table 50. A guide groove 76 is formed in the holder 75. The pin 70 includes an insertion portion 71 that is inserted into the through-hole 50a and a protrusion 72 that protrudes from the guide groove 76 to the outside of the holder 75. The protrusion 72 is connected to the insertion portion 71 via a shaft 72a. The operator operates the protrusion 72 along the guide groove 76 to switch between locking and unlocking the rotation of the rotating table 50. In this embodiment, the guide groove 76 has a vertical groove 76a extending along the height direction of the holder 75 and a horizontal groove 76b bending from the vertical groove 76a. A recess 76c, which is one step lower, is provided at the end of the horizontal groove 76b. When the protrusion 72 is operated and the shaft 72a is placed at the lower end of the vertical groove 76a, the insertion portion 71 is inserted into the locking portion 44, and the rotation of the turntable 50 is locked. When the protrusion 72 is moved along the vertical groove 76a and the horizontal groove 76b and the shaft 72a is placed in the recess 76c, the insertion portion 71 does not reach the locking portion 44, and the turntable 50 becomes rotatable. Note that in FIG. 5 , the pin 70 before the insertion portion 71 is inserted into the locking portion 44 is shown by a solid line, and the pin 70 after the insertion portion 71 is inserted into the locking portion 44 is shown by a two-dot chain line. In this way, since the pin 70 is accommodated in the holder 75, the pin 70 is less likely to fall off or come into contact with the bladder 21, and therefore the replacement work of the bladder 21 is less likely to be hindered.

[0032] As shown in FIG. 3 , the base 40 has a cover 55 that covers the rotation mechanism of the rotating table 50 (in this embodiment, the rotating shaft 42 and the support rollers 43). The cover 55 is provided on the upper surface of the base 40. The cover 55 is provided continuously along the circumferential direction of the rotating table 50. The cover 55 is a substantially annular member that conforms to the side peripheral surface 50b of the rotating table 50. The rotating shaft 42 and the support rollers 43 are housed in a space formed inside the substantially annular cover 55. The cover 55 is disposed between the base 40 and the rotating table 50. The height of the cover 55 is set slightly lower than the distance between the base 40 and the rotating table 50 so as not to interfere with the rotation of the rotating table 50. Note that the cover 55 is not limited to this form. For example, the cover 55 may have dimensions and a shape that cover the side peripheral surface 50b. By providing the cover 55 on the upper surface of the base 40 to cover the rotation mechanism of the rotating table 50, it is possible to prevent entanglement by the rotation mechanism.

[0033] <Bladder placement section 31> The bladder placing section 31 is a section on which the bladder 21 is placed. A bladder 21 that has been removed from the tire vulcanizer 1 or a bladder 21 that is to be newly attached to the tire vulcanizer 1 is placed on the bladder placing section 31. As shown in FIG. 2 , a plurality of bladder placing sections 31 are provided on the upper surface of the turntable 50. In this embodiment, four bladder placing sections 31 are provided. The four bladder placing sections 31 are arranged approximately evenly along the circumferential direction so as to surround the rotation axis of the turntable 50. The four bladder placing sections 31 are configured to rotate around the rotation axis set by the rotation shaft 42.

[0034] The bladder mounting portion 31 is formed in an annular shape. In this embodiment, the bladder 21 is replaced integrally with the clamp rings 23, 24 and the bead ring 17a (see FIG. 1). The dimensions of the bladder mounting portion 31 correspond to the bead ring 17a that constitutes the lower end of the integrated bladder 21, clamp rings 23, 24, and bead ring 17a. The dimensions of the bladder mounting portion 31 are set so that the bead ring 17a can be accommodated therein. For example, the inner diameter of the bladder mounting portion 31 can be set slightly larger than the outer diameter of the bead ring 17a. The height of the bladder mounting portion 31 can be set lower than the height of the bead ring 17a.

[0035] In this embodiment, a rubber sheet 56 is provided on the upper surface of the turntable 50. The rubber sheet 56 is a substantially disc-shaped rubber member that corresponds to the planar shape of the turntable 50. The rubber sheet 56 has notches and holes formed in it at positions corresponding to the rotation shaft 42, the handle 54, the through-hole 50a, and the bladder mounting portion 31. Therefore, the rubber sheet 56 covers the upper surface of the turntable 50 except for the positions corresponding to the rotation shaft 42, the handle 54, the through-hole 50a, and the bladder mounting portion 31. The rubber sheet 56 can serve as a cushioning material. The provision of the rubber sheet 56 on the upper surface of the turntable 50 protects the upper surface of the turntable 50. Furthermore, even when components of the tire vulcanizer 1, such as the bladder 21, are placed on the upper surface of the turntable 50, the components are less likely to be damaged. The rubber sheet 56 preferably has a required thickness and elasticity to protect the turntable 50, the bladder 21, and the like.

[0036] <Replacing Bladder 21> A procedure for replacing the bladders 21 using the above-mentioned bladder mounting pallet 30 will be described. Here, an example of a procedure for replacing the bladders 21 attached to two tire vulcanizers 1 lined up will be described.

[0037] First, the bladder 21 to be newly installed in the tire vulcanizer 1 is placed on two adjacent positions of the bladder placement section 31 of the bladder placement pallet 30. At this time, the rotation of the turntable 50 is locked by the pin 60. Herein, the bladder 21 is integrated with the clamp rings 23, 24 and the bead ring 17a. Of the clamp rings 23, 24 and the bead ring 17a, only the bead ring 17a is housed in the bladder placement section 31. Hereinafter, the integrated bladder 21, the clamp rings 23, 24 and the bead ring 17a will also be referred to simply as the "bladder 21."

[0038] Using a forklift, the bladder mounting pallet 30 on which the two bladders 21 are placed is moved to the two tire vulcanizers 1. The forklift's claws are raised and the bladder mounting pallet 30 is placed on the workbench. At this time, the bladder mounting pallet 30 is positioned so that the two bladder mounting sections 31b on which the bladders 21 are not placed are located in front of the two tire vulcanizers 1.

[0039] The bladders 21 are removed from the two tire vulcanizers 1. The removed bladders 21 are placed on the bladder placement section 31b in front of the tire vulcanizer 1. At this time, the bladder 21 removed from the tire vulcanizer 1 and the new bladder 21 to be attached to the tire vulcanizer 1 are placed on the bladder placement pallet 30. The pin 60 is removed from the through hole 50a, and the handle 54 is operated to rotate the turntable 50 180 degrees. This moves the new bladder 21 to the front of the tire vulcanizer 1. The pin 60 is inserted through the through hole 50a to lock the rotation of the turntable 50.

[0040] The newly installed bladders 21 that have been moved to the front of the two tire vulcanizers 1 are installed on the tire vulcanizers 1. Once the new bladders 21 have been installed on the two tire vulcanizers 1, only the bladders 21 that were removed from the tire vulcanizers 1 are placed on the bladder mounting pallet 30. Once the bladder replacement is complete, a forklift is used to move the bladder mounting pallet 30 from the workbench, and the bladders 21 that were removed from the tire vulcanizers 1 are put away in their designated locations. As described above, the bladders 21 of the tire vulcanizers 1 can be replaced using the bladder mounting pallet 30.

[0041] In the embodiment described above, the bladder mounting pallet 30 includes a base 40 having a pair of insertion holes 41 into which a pair of claws of a lifter are inserted, a rotating table 50 disposed on the base 40, and a plurality of bladder mounting sections 31 provided on the upper surface of the rotating table 50. By providing a plurality of bladder mounting sections 31, both a bladder 21 to be newly installed and both bladders 21 that have been removed can be mounted on the bladder mounting pallet 30 at the same time. Furthermore, by rotating the rotating table 50, the bladders 21 mounted on the plurality of bladder mounting sections 31 can be interchanged on the bladder mounting pallet 30. This allows both the removal of the bladder 21 and the installation of the bladder 21 to be performed in a position close to the tire vulcanizer 1. As a result, the workability of the bladder 21 replacement operation is improved.

[0042] In the above-described embodiment, four bladder mounting portions 31 are provided on the bladder mounting pallet 30. By providing four or more bladder mounting portions 31, the bladders 21 can be replaced in a plurality of tire vulcanizers 1 by transporting the bladders 21 at one time.

[0043] In the embodiment described above, the rotation axis of the turntable 50 is set so that it rotates along the upper surface of the base 40. The multiple bladder mounting sections 31 are configured to rotate around the rotation axis. This can improve the weight balance when the bladders 21 are placed. As a result, the turntable 50 rotates smoothly, and workability can be improved.

[0044] In the above-described embodiment, the bladder mounting portion 31 is formed in an annular shape. With this configuration, the substantially cylindrical bladder 21 can be easily placed on the bladder mounting portion 31. Also, an annular member that can be removed integrally with the bladder 21, such as the bead ring 17a, can be easily placed on the bladder mounting portion 31. As a result, the workability of replacing the bladder 21 can be improved.

[0045] In the embodiment described above, a through hole 50a is formed in the turntable 50. A locking portion 44 is provided in the base 40 at a position that overlaps with the through hole 50a in a plan view. A pin 60 is inserted through the through hole 50a and the locking portion 44, so that the rotation of the turntable 50 is locked. This allows the bladder 21 to be replaced with the rotation of the turntable 50 locked, thereby improving the workability of replacing the bladder 21.

[0046] The technology disclosed herein has been described above in various ways. However, the technology disclosed herein is not limited to the above-described embodiments unless otherwise specified. For example, the bladder-mounting pallet disclosed herein is not limited to a forklift. Various lifters can be selected for use when replacing the bladder. The configuration of the bladder-mounting pallet may be changed depending on the selected lifter. Furthermore, the rotation and locking of the rotating table do not have to be manual, but may be configured to be electrically operated. Furthermore, the configurations of the various described embodiments can be appropriately combined as long as they do not interfere with each other. Note that this specification includes the following disclosure, and the following disclosure is not limited to the above-described embodiments.

[0047] The present invention (1) relates to a bladder-mounting pallet. The bladder-mounting pallet of the present invention is: a base having a pair of insertion holes into which a pair of claws of the lifter are inserted; a rotating table disposed on the base; a plurality of bladder placement sections provided on the upper surface of the turntable; It is equipped with:

[0048] The present invention (2) is a bladder-mounting pallet according to the present invention (1), The rotary table has a rotation axis set so as to rotate along the upper surface of the base, The plurality of bladder mounting portions are configured to rotate about the rotation axis.

[0049] The present invention (3) is a bladder-mounted pallet according to the present invention (1) or the present invention (2), The bladder mounting portion is formed in an annular shape.

[0050] The present invention (4) is a bladder-mounted pallet according to any one of the present inventions (1) to (3), The turntable has a through hole formed therein, a locking portion is provided on the base at a position overlapping with the through hole in a plan view, A pin is inserted through the through hole and the locking portion, thereby locking the rotation of the rotary table.

[0051] The present invention (5) is a bladder-mounted pallet according to any one of the present inventions (1) to (4), The base has a cover that covers the rotation mechanism of the rotation table.

[0052] The present invention (6) is a bladder-mounted pallet according to any one of the present inventions (1) to (5), A rubber sheet is provided on the upper surface of the rotating table. [Explanation of symbols]

[0053] 1. Tire vulcanizer 10 Tire curing mold 17 Side mold 17a bead ring 17b Mold base 17c Holding part 20 Bladder center mechanism 21 Brada 22 Center Post 23,24 Clamp ring 30 Bladder mounting pallet 31 Bladder placement section 40 Foundations 41 Insertion hole 42 Rotation axis 43 Support roller 44 Locking part 50 Rotating Platform 50a through hole 54 Handle 55 Cover 56 Rubber Sheet 60,70 pin R low cover

Claims

1. a base having a pair of insertion holes into which a pair of claws of the lifter are inserted; a rotating table disposed on the base; a plurality of bladder placement sections provided on the upper surface of the turntable; Equipped with Bladder mounting pallet.

2. The rotary table has a rotation axis set so as to rotate along the upper surface of the base, The bladder mounting pallet according to claim 1 , wherein the plurality of bladder mounting sections are configured to rotate about the rotation axis.

3. 3. The bladder mounting pallet according to claim 1, wherein the bladder mounting portion is formed in an annular shape.

4. The turntable has a through hole formed therein, a locking portion is provided on the base at a position overlapping with the through hole in a plan view, 3. The bladder-mounting pallet according to claim 1, wherein a pin is inserted through the through-hole and the locking portion to lock the rotation of the rotating table.

5. 3. The bladder-mounting pallet according to claim 1, wherein the base has a cover for covering a rotation mechanism of the rotary table.

6. 3. The bladder-mounting pallet according to claim 1, wherein a rubber sheet is provided on the upper surface of said rotating table.

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