Abstract:
A tire vulcanizer system in which multiple tire vulcanizers, provided with a frame and a vulcanizing mechanism that is supported by the frame and is for vulcanizing green tires, are connected, wherein the tire vulcanizers are provided with respective alignment sections, which are provided on the respective frames and are for aligning the level positions of adjacent frames relative to each other.

Description:
TECHNICAL FIELD 
       [0001]    The present invention relates to a tire vulcanizer system and an assembly method therefor. 
       BACKGROUND ART 
       [0002]    Tire vulcanizers including a set of molds that vulcanizes and molds a green tire in a frame are known (for example, refer to PTL 1). 
         [0003]    Additionally, there are tire vulcanizer systems that are operated after a plurality of tire vulcanizers each including a set of molds within a frame is arranged side by side on mounts such that the respective frames come in contact with each other (for example, refer to PTL 2). 
       CITATION LIST 
     Patent Literature 
       [0004]    [PTL 1] Japanese Patent No. 3040626 
         [0005]    [PTL 2] Japanese Unexamined Patent Application Publication No. 2000-202831 
       SUMMARY OF INVENTION 
     Technical Problem 
       [0006]    Meanwhile, in the tire vulcanizer systems, when the plurality of tire vulcanizers is shipped, the tire vulcanizers are precisely positioned and temporarily assembled, and a shipment inspection is performed. In this case, precise positioning of the frames of the tire vulcanizer is performed. Particularly, when automatic conveyance of the molds is performed, positioning is performed such that the error thereof falls within an error range of about ±0.2 mm (0.5 TIR). The plurality of tire vulcanizers is first released from the positioning and individually shipped and conveyed after the shipment inspection. Thereafter, the plurality of tire vulcanizers is precisely positioned and installed again in a conveyance destination. 
         [0007]    However, in the above tire vulcanizer systems, the positioning during the shipment inspection should be reproduced in the conveyance destination. Therefore, there are problems in that the time taken for positioning work increases and a burden on a worker is great. 
         [0008]    Additionally, in the above tire vulcanizer systems, in order to perform precise positioning, high machining precision is required for the frames of the tire vulcanizers. Therefore, there is a problem in that machining time and inspection time become long. 
         [0009]    The invention provides a tire vulcanizer system and an assembly method for a tire vulcanizer system that can shorten the machining time and the inspection time of frames and can alleviate a burden on a worker caused by positioning work. 
       Solution to Problem 
       [0010]    According to a first aspect of the invention, there is provided a tire vulcanizer system obtained by coupling a plurality of tire vulcanizers each including a frame and a vulcanizing mechanism supported by the frame to vulcanize a green tire, in which the tire vulcanizer includes a positioning unit that is provided in each of the frames and determines relative planar positions of the frames adjacent to each other. 
         [0011]    According to a second aspect of the invention, in the tire vulcanizer system related to the first aspect, the positioning unit may include a plurality of positioning bodies that is disposed at positions different from each other in a frontward-rearward direction perpendicular to a frame array direction in which the frames are coupled together and arrayed. In addition, the positioning body in the tire vulcanizer system may include a pair of positioning blocks that are arranged side by side in the frame array direction in which the frames are coupled together, is respectively fixed to the frames adjacent to each other, and abut against each other. 
         [0012]    According to a third aspect of the invention, in the tire vulcanizer system related to the second aspect, the positioning blocks provided in at least one positioning body of the plurality of positioning bodies may include a first surface that performs positioning in the frame array direction and a second surface that performs positioning in the frontward-rearward direction. 
         [0013]    According to a fourth aspect of the invention, in the tire vulcanizer system related to the third aspect, the second surface may be an inclined surface that inclines in the frontward-rearward direction with respect to the frame array direction. 
         [0014]    According to a fifth aspect of the invention, in the tire vulcanizer system related to the third or fourth aspect, the positioning blocks provided in at least one positioning body of the plurality of positioning bodies may include only a first surface that performs positioning in the frame array direction. 
         [0015]    According to a sixth aspect of the invention, the tire vulcanizer system related to the first aspect may include: a mount that has a convex part on a support surface that supports the frame; and the frame that has a concave part that allows the convex part to be inserted thereinto, and the positioning unit may include the convex part and the concave part. 
         [0016]    According to a seventh aspect of the invention, in the tire vulcanizer system related to the first aspect, the positioning unit may include: a first convex part that protrudes upward from a support surface of a mount that supports the frame and has a first surface that performs positioning of a leg unit of the frame in the frame array direction; and a second convex part that protrudes upward from the support surface of the mount that supports the frame and has a second surface that performs positioning of the leg unit in a frontward-rearward direction perpendicular to the frame array direction. 
         [0017]    According to a eighth aspect of the invention, the tire vulcanizer system related to the first aspect may include: the frame including a leg unit that has a frame-side key groove formed in a lower surface thereof; and a mount having a mount-side key groove on a support surface that supports the leg unit. The positioning unit may include: a key mechanism that has the frame-side key groove, the mount-side key groove, and a key member and performs positioning in a frontward-rearward direction perpendicular to the frame array direction in which the frames are coupled together and arrayed. In addition, the positioning unit may include a first convex part that protrudes upward from the support surface of the mount that supports the frame and has a first surface that performs positioning of the leg unit of the frame in the frame array direction. 
         [0018]    According to a ninth aspect of the invention, in the tire vulcanizer system related to the first to eighth aspects, at least one of a carrying-in unit that carries in a non-vulcanized green tire to a tire vulcanizer, and a carrying-out unit that carries out a vulcanized tire may include a fixing part that is coupled to the respective frames so as to stretch over the frames adjacent to each other and performs positioning of the frames. 
         [0019]    According to a tenth aspect of the invention, there is provided an assembly method for a tire vulcanizer system obtained by coupling a plurality of tire vulcanizers each including a frame and a vulcanizing mechanism supported by the frame to vulcanize a green tire. The assembly method for a tire vulcanizer system may include: a temporary assembling step of adjusting the positions of the frames adjacent to each other and temporarily coupling the frames together; and a positioning body attaching step of attaching positioning bodies for positioning to the temporarily coupled frames, respectively. In addition, the assembly method for a tire vulcanizer system may further include: a decoupling step of releasing the coupling between the frames with the positioning bodies attached thereto; and a main assembling step of respectively attaching the frames between which the coupling has been released to installation locations such that the relative positions of the frames are constrained by the positioning bodies. 
       Advantageous Effects of Invention 
       [0020]    According to the tire vulcanizer system and the assembly method for a tire vulcanizer system of the invention, the machining time and the inspection time of the frames can be shortened, and it is possible to alleviate a burden on a worker caused by positioning work. 
     
    
     
       BRIEF DESCRIPTION OF DRAWINGS 
         [0021]      FIG. 1  is a front view illustrating the overall configuration of a tire vulcanizer system in a first embodiment of the invention. 
           [0022]      FIG. 2  is a side view of the tire vulcanizer system in the first embodiment of the invention. 
           [0023]      FIG. 3  is a plan view of the tire vulcanizer system in the first embodiment of the invention. 
           [0024]      FIG. 4  is a sectional view taken along line IV-IV of  FIG. 1 . 
           [0025]      FIG. 5  is a sectional view taken along line V-V of  FIG. 1 . 
           [0026]      FIG. 6  is a side view of a leg unit in the first embodiment of the invention. 
           [0027]      FIG. 7  is a front view of the leg unit in the first embodiment of the invention. 
           [0028]      FIG. 8  is a back view of the leg unit in the first embodiment of the invention. 
           [0029]      FIG. 9  is a plan view of a positioning unit in the first embodiment of the invention. 
           [0030]      FIG. 10  is a flowchart of an assembly method for a tire vulcanizer system in the first embodiment of the invention. 
           [0031]      FIG. 11  is a plan view equivalent to  FIG. 9  illustrating a positioning unit in a second embodiment of the invention. 
           [0032]      FIG. 12  is a plan view equivalent to  FIG. 9  illustrating a positioning unit in a third embodiment of the invention. 
           [0033]      FIG. 13  is a sectional view taken along line XIII-XIII of  FIG. 12 . 
           [0034]      FIG. 14  is a plan view equivalent to  FIG. 9  illustrating a positioning unit in a fourth embodiment of the invention. 
           [0035]      FIG. 15  is a plan view of a positioning unit in a fifth embodiment of the invention. 
           [0036]      FIG. 16  is a side sectional view of a positioning unit in the fifth embodiment of the invention. 
       
    
    
     DESCRIPTION OF EMBODIMENTS 
       [0037]    Hereinafter, a tire vulcanizer system in a first embodiment of the invention will be described with reference to the drawings. 
         [0038]      FIG. 1  is a front view illustrating the overall configuration of a tire vulcanizer system  1  in the first embodiment of the invention. 
         [0039]    As illustrated in  FIG. 1 , the tire vulcanizer system of this embodiment includes a plurality of tire vulcanizers  2 . Each of the plurality of tire vulcanizers  2  includes a frame  3  and a vulcanizing mechanism  4 . In this embodiment, a case where two sets of the tire vulcanizers  2  are arranged side by side will be described as an example. 
         [0040]    The frame  3  houses the vulcanizing mechanism  4  therein. The frame  3  forms a long gate shape in the upward-downward direction. The frame  3  has side walls  6  on the left and right sides thereof such that openings  5  are disposed on the front and back sides thereof. Additionally, the frame  3  includes an upper frame  7  and a lower frame  8  that connects upper and lower parts of the left and right side walls  6 . The frames  3  are respectively installed in a state where the frames are suspended upward from an installation surface F by a predetermined distance by mounts  9  installed on the installation surface F. The respective frames  3  of the plurality of tire vulcanizers  2  are arranged side by side in a row such that the side walls  6  thereof face each other. 
         [0041]    The vulcanizing mechanism  4  includes a mold  10 . The mold  10  includes an upper mold  11  and a lower mold  12 . The vulcanizing mechanism  4  includes an upper mold supporting mechanism  13  that supports the upper mold  11 , and a lower mold supporting mechanism  14  that supports the lower mold  12 . 
         [0042]    The upper mold supporting mechanism  13  includes an upper movable body  15 , guide brackets  16 , a pressurizing force transmission member  17 , a pressurizing cylinder  18 , and a lifting cylinder  19 . 
         [0043]    The upper movable body  15  detachably supports the upper mold  11 . 
         [0044]    The guide brackets  16  liftably support the upper movable body  15 . The guide brackets  16  are fixed to an upper part of the upper movable body  15 . The guide brackets  16  are guided by guide rails  21  provided on the side walls  6  of the frame  3 , and are slidable up and down. 
         [0045]    The pressurizing force transmission member  17  is a member that transmits pressure for mold-clamping to the mold  10 . The pressurizing force transmission member  17  transmits a pressurizing force caused by the pressurizing cylinder  18  to the upper mold  11 , and fastens the upper mold  11  and the lower mold  12  together. A lower end of the pressurizing force transmission member  17  is fixed to the upper movable body  15 . Additionally, the pressurizing force transmission member  17  is supported so as to be liftable with respect to the upper frame  7 . 
         [0046]    The pressurizing cylinder  18  is a fluid pressure type cylinder. The pressurizing cylinder  18  presses the pressurizing force transmission member  17  against the mold  10  side, in a state where the upper mold  11  and the lower mold  12  are fastened together. 
         [0047]    The lifting cylinder  19  is a cylinder that lifts and lowers the upper movable body  15  in order to open and close the mold  10 . The lifting cylinder  19  is fixed to the upper frame  7 . The lifting cylinder  19  changes the position of the upper mold  11  in the upward-downward direction with respect to the upper frame  7 . 
         [0048]    The lower mold supporting mechanism  14  mainly includes a center mechanism  22  and a lower platen  23 . 
         [0049]    The center mechanism  22  is disposed at a central part of the lower platen  23 . The center mechanism  22  is attached to the lower platen  23  so as to be slidable in the upward-downward direction. A bladder (not illustrated) that supports the inside of a tire is attached to the center mechanism. A vulcanized tire is made to be releasable from the lower mold  12 , for example, by opening the mold  10  to lift the center mechanism  22  after the tire is vulcanized and molded. 
         [0050]    The lower platen  23  supports the lower mold  12  from below. The lower platen  23  includes a heating mechanism (not illustrated) capable of heating the mold  10 . 
         [0051]      FIG. 2  is a side view of the tire vulcanizer system  1  in this embodiment.  FIG. 3  is a plan view of the tire vulcanizer system  1  in this embodiment.  FIG. 4  is a sectional view taken along line IV-IV of  FIG. 1 . 
         [0052]    As illustrated in  FIGS. 2 and 3 , the tire vulcanizer system  1  includes a tire loader  25  and a tire unloader  26 . Here, in this embodiment, the tire loader  25  is disposed on a front side in a frontward-rearward direction perpendicular to an array direction (hereinafter, simply referred to as a frame array direction) of the frames  3  with respect to the tire vulcanizers  2  adjacent to each other. Additionally, a case where the tire unloader  26  is disposed on a rear side in the frontward-rearward direction with respect to the tire vulcanizers  2  adjacent to each other will be described as an example. 
         [0053]    The tire loader  25  is a device that transfers a green tire before vulcanization molding, which is supplied from the outside, to the above-described vulcanizing mechanism  4 . One tire loader  25  is provided for each of the tire vulcanizers  2  adjacent to each other. The tire loaders  25  are disposed on the front side between the tire vulcanizers  2  adjacent to each other. The tire loader  25  includes a turning arm  27 , a tire chuck  28 , and a loader lifting mechanism  29 . 
         [0054]    The turning arm  27  is made rockable between a first position where a tire is transferred to each of the left and right vulcanizing mechanisms  4  and a second position where the tire is received from the outside. The turning arm  27  is driven, for example, by a fluid pressure cylinder or the like. 
         [0055]    The tire chuck  28  is a device that holds a green tire in order to lift the green tire. The tire chuck  28  is provided at a tip part of the turning arm  27 . The tire chuck  28  is able to hold the bead inside of a green tire with a plurality of locking parts (not illustrated) capable of being protruded and retracted. The tire chuck  28  is brought into a state where the tire chuck holds a green tire at a predetermined timing when the turning arm  27  is at the second position. On the other hand, the tire chuck  28  releases a green tire holding state when the turning arm  27  is at the first position. In  FIG. 1 , illustration of the turning arm  27  and the tire chuck  28  of the tire loader  25  is omitted for the sake of convenience of illustration. 
         [0056]    The loader lifting mechanism  29  is a mechanism that lifts and lowers the turning arm  27  that has the tire chuck  28  provided at a tip thereof. The loader lifting mechanism  29  includes a main lift body  31 , a lifting cylinder  32 , and a guide rail  33 . 
         [0057]    The main lift body  31  rockably supports the above-described turning arm  27 . The main lift body  31  is made movable up and down along the guide rail  33 . Additionally, the lifting cylinder  32  is connected to the main lift body  31 . The main lift body  31  moves up and down along the guide rail  33  according to the extension and retraction of the lifting cylinder  32 . 
         [0058]    The lifting cylinder  32  generates driving power that changes the position of the main lift body  31  in the upward-downward direction on the basis of a control command of a control device (not illustrated). In this embodiment, an end of a rod part of the lifting cylinder  32  is connected to the main lift body  31 , and a main body part of the lifting cylinder  32  is supported by the frame  3 . 
         [0059]    The guide rail  33  guides the main lift body  31  in the upward-downward direction. 
         [0060]    As illustrated in  FIGS. 3 and 4 , the guide rail  33  is attached so as to protrude toward the front from the edge of the frame  3  on a side where the frames  3  adjacent to each other face each other. The guide rails  33  are inclined and formed so as to approach each other toward the front. Two main rail bodies  33   a  are provided on the outer surface of the guide rail  33  that faces each side of the vulcanizing mechanism  4 . The main rail bodies  33   a  are formed so as to extend in the upward-downward direction, respectively. The above-described main lift body  31  is liftably attached to the respective main rail bodies  33   a , respectively, in a posture where the turning arm  27  faces each vulcanizing mechanism  4  side. 
         [0061]    As illustrated in  FIGS. 2 and 3 , the tire unloader  26  is a device that carries out a vulcanized and molded tire from the above-described vulcanizing mechanism  4 . The tire unloader  26  is provided between the tire vulcanizers  2  adjacent to each other, similar to the above-described tire loader  25 . Additionally, the tire unloader  26  is provided on the rear side that is a side opposite to the tire loader  25  in the frontward-rearward direction. The tire unloader  26  includes a turning arm  34 , a tire chuck  35 , and an unloader lifting mechanism  36 . 
         [0062]    The turning arm  34  is made rockable between a first position where a vulcanized tire is received from each of the left and right vulcanizing mechanisms  4  and a second position where the vulcanized tire is transferred to external conveying means or the like. The turning arm  34  is driven, for example, by a fluid pressure cylinder or the like, similar to the turning arm  27 . 
         [0063]    Additionally, the turning arm  34  can also be rocked among a first position where a tire is received, a second position where the tire is transferred to a cooling device (not illustrated) that cools a vulcanized tire, and a third position where the cooled tire of the cooling device is transferred to external transporting means or the like. 
         [0064]    The tire chuck  35  is a device that holds a vulcanized tire, in order to lift the vulcanized tire. The tire chuck  35  is provided at a tip part of the turning arm  34 . The tire chuck  35  is able to hold the bead inside of a vulcanized tire with a plurality of locking parts (not illustrated) capable of being protruded and retracted, similar to the tire chuck  28  of the above-described tire loader  25 . The tire chuck  35  is brought into a state where the tire chuck holds a vulcanized tire when the turning arm  34  is at the first position. On the other hand, the tire chuck  35  releases a state where the tire chuck holds a vulcanized tire at a predetermined timing when the turning arm  34  is at the second position. 
         [0065]    The unloader lifting mechanism  36  is a mechanism that lifts and lowers the two turning arms  34  that have the tire chucks  35  provided at the tips of the turning arms. That is, the unloader lifting mechanism  36  is shared by the two tire unloaders  26 . The unloader lifting mechanism  36  includes a main lift body  37 , a lifting cylinder  38 , and a guide rail  39 . 
         [0066]    The main lift body  37  is made movable up and down along the guide rail  39 . The main lift body  37  rockably supports the above-described two turning arms  34 . The lifting cylinder  38  is connected to the main lift body  37  (refer to  FIG. 2 ). The main lift body  37  moves up and down along the guide rail  39  according to the extension and retraction of the lifting cylinder  38 . 
         [0067]    The lifting cylinder  38  generates driving power that changes the position of the main lift body  37  in the upward-downward direction on the basis of a control command of a control device (not illustrated). 
         [0068]    The guide rail  39  extends in the upward-downward direction in order to guide the main lift body  37  in the upward-downward direction. As illustrated in  FIG. 3 , the guide rail  39  is formed so as to protrude toward the rear from the frame  3 . The guide rail  39  stretches over the frames  3  adjacent to each other, and is fixed to respective edges of the respective frames  3  with fastening members (not illustrated), such as bolts. By fixing the guide rail  39  so as to stretch over the two frames  3  in this way, rear edges of the side walls  6  are positioned and the distance between the rear edges of the side walls  6  is maintained at a predetermined distance. 
         [0069]    The guide rail  39  has a pair of main rail bodies  39   b  on a rear surface  39   a  thereof. The main rail bodies  39   b  are respectively formed so as to extend in the upward-downward direction. The above-described main lift body  37  is liftably attached to the respective main rail bodies  39   b  so as to face the rear. Additionally, as illustrated in  FIG. 4 , a rib  40  that protrudes rearward from the frame  3  and extends in the upward-downward direction is formed below the guide rail  39 . 
         [0070]      FIG. 5  is a sectional view taken along line V-V of  FIG. 1 .  FIG. 6  is a side view of leg units  43  and  44 . FIG.  7  is a front view of the leg units  43  and  44 .  FIG. 8  is a back view of the leg units  43  and  44 . 
         [0071]    As illustrated in  FIG. 1 , the frame  3  has the leg unit  43  at a first end  41  in the frame array direction, and has the leg unit  44  at a second end  42  in the frame array direction. The leg units  43  and  44  are respectively attached to a lower end of the frame  3 , and are formed in the shape of a flat plate that extends back and forth. As illustrated in  FIG. 1  and  FIG. 5 , the leg units  43  and  44  are arranged such that outer edges  43   a  and  44   a  in the frame array direction face each other. 
         [0072]    As illustrated in  FIG. 5 , the leg units  43  and  44  are formed symmetrically to each other in the frame array direction. Front parts  43   c  and  44   c  of the leg units  43  and  44  have inclined edges  43   b  and  44   b  that incline so as to approach the outer edges  43   a  and  44   a  while being closer to the front, on sides opposite to the outer edges  43   a  and  44   a  in the frame array direction. Accordingly, the overall outline of the front parts  43   c  and  44   c  that are abutted against each other are formed in a tapered shape toward the front. Additionally, as illustrated in  FIGS. 6 and 7 , the guide rail  33  that extends up and down is formed on the upper surfaces of the leg units  43  and  44 . 
         [0073]    Meanwhile, as illustrated in  FIG. 5 , rear parts  43   d  and  44   d  of the leg units  43  and  44  are formed in a rectangular shape in a plan view. The above-described ribs  40  are attached to the rear parts  43   d  and  44   d . As illustrated in  FIG. 6 , the rib  40  is formed with a service hole  40   a  for performing the work of fastening a rear part positioning body  52  to be described below with a bolt  67  and a nut  68 . 
         [0074]    As illustrated in  FIG. 7 , the mounts  9  support the first end  41  and the second end  42  from below in the frame array direction. Bearing parts  45  are respectively formed at upper ends of the mounts  9 . The bearing parts  45  are formed in the shape of a flat plate including upper surfaces that face lower surfaces of the leg units  43  and  44 . Here, the leg units  43  and  44  are fastened to the bearing parts  45  by a plurality of fastening members  47  (refer to  FIG. 5 ), such as bolts and nuts, in a state where the frames  3  adjacent to each other are precisely positioned. 
         [0075]    As illustrated in  FIG. 5  to  FIG. 8 , the frame  3  includes a positioning unit  50  for determining the relative planar positions of the frames  3  adjacent to each other. 
         [0076]    The positioning unit  50  includes a front part positioning body  51  and a rear part positioning body  52 . As illustrated in  FIG. 5 , the front part positioning body  51  includes a pair of front part positioning blocks  53   a  and  53   b . The rear part positioning body  52  includes a pair of rear part positioning blocks  54   a  and  54   b.    
         [0077]    As illustrated in  FIGS. 5 and 7 , the front part positioning blocks  53   a  and  53   b  are disposed side by side in the frame array direction. The front part positioning block  53   a  is attached to the front part  43   c  of the leg unit  43 . The front part positioning block  53   b  is attached to the front part  44   c  of the leg unit  44 . The front part positioning blocks  53   a  and  53   b  in this embodiment are respectively fixed to the leg units  43  and  44  with bolts, nuts, or the like. 
         [0078]    As illustrated in  FIGS. 5 and 8 , the rear part positioning blocks  54   a  and  54   b  are disposed side by side in the frame array direction, similar to the front part positioning blocks  53   a  and  53   b . The rear part positioning block  54   a  is attached to the rear part  43   d  of the leg unit  43 . The rear part positioning block  54   b  is attached to the rear part  44   d  of the leg unit  44 . The rear part positioning blocks  54   a  and  54   b  in this embodiment are respectively fixed to the leg units  43  and  44  by welding or the like. 
         [0079]      FIG. 9  is a plan view illustrating the positioning unit  50 . 
         [0080]    As illustrated in  FIG. 9 , the front part positioning block  53   a  includes a first surface  55 . The front part positioning block  53   b  includes a first surface  56 . The first surfaces  55  and  56  are respectively flat surfaces that extend in the frontward-rearward direction and the upward-downward direction. The first surfaces  55  and  56  abut against each other face to face, thereby performing the relative positioning of the front parts  43   c  and  44   c  in the frame array direction. 
         [0081]    The rear part positioning block  54   a  includes two first surfaces  57  and two second surfaces  58 . The rear part positioning block  54   b  includes two first surfaces  59  and two second surfaces  60 . The first surfaces  57  and  59  are respectively flat surfaces that extend in the frontward-rearward direction and the upward-downward direction. The first surfaces  57  and  59  abut against each other face to face, thereby performing the relative positioning of the rear parts  43   d  and  44   d  in the frame array direction. The two first surfaces  57  are distributed on a front part  54   aa  and a rear part  54   ab  of the rear part positioning block  54   a . The two first surfaces  59  are also distributed on a front part  54   ba  and a rear part  54   bb  of the rear part positioning block  54   b  so as to face the two first surfaces  57 . 
         [0082]    The two second surfaces  58  are inclined flat surfaces that extend from end edges  57   a  of the two first surfaces  57  on central part C sides in the frontward-rearward direction toward the central part C sides in the frame array direction, respectively. The two second surfaces  60  are also inclined flat surfaces that extend from end edges  59   a  of the two first surfaces  59  toward the central part C sides in the frame array direction, respectively. 
         [0083]    The second surface  58  extends so as to protrude outward in the width direction of the frame  3  in the frame array direction. Meanwhile, the second surface  60  extends so as to enter inward in the width direction of the frame  3  in the frame array direction. The second surfaces  58  and  60  abut against each other face to face, thereby performing the relative positioning of the rear parts  43   d  and  44   d  of the frame  3  in the frontward-rearward direction. The second surfaces  58  are connected together by a connecting surface  61 . The second surfaces  60  are connected together by a connecting surface  62 . Additionally, the second surface  58  is formed so as to be longer than the second surface  60  in the inclined direction. 
         [0084]    In other words, the rear part positioning block  54   a  includes a convex part  64  that is formed by two second surfaces  58  and one connecting surface  61  and has a trapezoidal section. The rear part positioning block  54   b  includes a concave part  63  that is formed by two second surfaces  60  and one connecting surface  62  and has a trapezoidal section. The depth of the concave part  63  is made larger than the protruding height of the convex part  64 . That is, as the convex part  64  is completely embedded in the concave part  63 , the above-described second surfaces  58  and  60  abut against each other to perform positioning of the frame  3  of the frontward-rearward direction, and the first surfaces  57  and  59  abut against each other to perform positioning of the frame in the frame array direction. 
         [0085]    Through-holes  65  and  66  are respectively formed in the frame array direction in the rear part positioning block  54   a  and the rear part positioning block  54   b . One bolt  67  is inserted through the through-holes  65  and  66  and is fastened with nuts  68 . That is, the rear part positioning block  54   a  and the rear part positioning block  54   b  are displaced in approaching directions simply by passing the bolt  67  through the through-holes  65  and  66  and fastening the nuts  68  in a state where the convex part is not completely embedded in the above-described concave part  63 . Then, the second surface  58  of the convex part  64  that is an inclined flat surface is guided to the second surface  60  of the concave part  63  that is an inclined flat surface, and the convex part  64  is completely embedded in the concave part  63 . As a result, positioning of the frame  3  in the frame array direction and positioning of the frame  3  in the frontward-rearward direction are performed. 
         [0086]    In the frame  3  in this embodiment, positional adjustment of the frame in the height direction is performed, for example, by sandwiching a thin plate-shaped liner (not illustrated) between the leg unit  43  or the leg unit  44  and the mount  9 . 
         [0087]    The tire vulcanizer system  1  in this embodiment includes the above-described configuration. Next, an assembly method for a tire vulcanizer system  1  will be described referring to  FIG. 10 . 
         [0088]    First, a plurality of tire vulcanizers  2  is individually assembled, respectively. 
         [0089]    Next, for a shipment inspection, the plurality of tire vulcanizers  2  is arrayed on the mounts  9  so as to satisfy the same conditions as the installation conditions in a delivery destination. Moreover, the positioning of the frames  3  adjacent to each other are precisely performed, and the frames are fixed by the fastening member  47  (temporary assembling step; Step S 01 ). Additionally, the tire unloaders  26  are fixed so as to stretch over the frames  3 . Moreover, the tire loaders  25  and all of various peripheral devices, such as required piping, are attached. In this state, various kinds of inspections, such as an operation check, is performed. 
         [0090]    Next, the front part positioning blocks  53   a  and  53   b  and the rear part positioning blocks  54   a  and  54   b  for positioning are respectively attached to the temporarily coupled frames  3  (positioning body attaching step; Step S 02 ). 
         [0091]    In this case, the front part positioning blocks  53   a  and  53   b  are respectively fixed to the leg units  43  and  44  with bolts, nuts, or the like in a state where the respective first surfaces  55  and  56  of the front part positioning blocks  53   a  and  53   b  abut against each other. 
         [0092]    Moreover, in this case, the rear part positioning blocks  54   a  and  54   b  are respectively fixed to the leg units  43  and  44  by welding or the like in a state where the respective first surfaces  57  and  59  of the rear part positioning blocks  54   a  and  54   b  abut against each other and the respective second surfaces  58  and  60  abut against each other. 
         [0093]    Next, the coupling between the frames  3  is released, with the front part positioning blocks  53   a  and  53   b  and the rear part positioning blocks  54   a  and  54   b  being attached to the frames  3  (decoupling step; Step S 03 ). Here, the respective tire vulcanizers  2  between which the coupling is released are individually conveyed to a delivery destination or the like. The same mounts as the mounts  9  used during the shipment inspection are installed in advance in the delivery destination. 
         [0094]    Next, the respective tire vulcanizers  2  between which the coupling are released are attached side by side installation locations, such as a delivery destination (main assembling step; Step S 04 ). In detail, the respective tire vulcanizers  2  are first installed on the mounts  9 . Moreover, positioning is performed such that the relative positions of the frames  3  adjacent to each other are constrained by the front part positioning blocks  53   a  and  53   b  and the rear part positioning blocks  54   a  and  54   b . In this case, positioning of the rear part positioning blocks  54   a  and  54   b  is performed by fastening the rear part positioning blocks with the bolt  67  and the nuts  68 . Additionally, if required, height adjustment is performed by the liner. Moreover, positioning of the frames  3  is performed by the tire unloaders  26  of the frames  3  at the intermediate positions in the height direction. Additionally, all of the accessories, required piping, and the like are attached. Thereafter, the leg units  43  and  44  are fixed to the mounts  9  by the fastening members  47 . 
         [0095]    Therefore, according to the tire vulcanizer system  1  of the above-described first embodiment, the relative planar positions of the frames  3  can be determined by the positioning unit  50 . Therefore, for example, the relative planar positions of the frames  3  during a shipment inspection at a shipment destination can be reproduced, for example, by determining the relative planar positions of the frames during a shipment inspection using the positioning unit  50 . Additionally, since the relative planar positions of the frames  3  can be determined by the positioning unit  50 , the relative planar positions of the frames  3  can be determined even if the machining precision of the frames  3  themselves is low. As a result, the machining time and the inspection time of the frames  3  can be shortened. Additionally, a burden on a worker related to positioning work can be reduced. 
         [0096]    Moreover, the relative planar positions of the frames  3  can be determined in a plurality of places of the frames  3  in the frontward-rearward direction by providing the front part positioning body  51  and the rear part positioning body  52  as a plurality of positioning bodies in the frontward-rearward direction. Additionally, the relative planar positions of the frames  3  can be determined simply by making the front part positioning blocks  53   a  and  53   b  of the positioning unit  50  abut against each other and making the rear part positioning blocks  54   a  and  54   b  abut against each other. As a result, the relative planar positions of the frames  3  can be easily determined. Therefore, the burden on the worker can be further reduced. 
         [0097]    Moreover, positioning in the frame array direction can be performed by the first surfaces  57  and  59 , and positioning in the frontward-rearward direction can be performed by the second surfaces  58  and  60 . Therefore, the relative planar positions of the respective frames  3  in the frame array direction and the frontward-rearward direction can be determined by one rear part positioning body  52 . As a result, the number of positioning bodies can be reduced as compared to a case where a positioning body that performs positioning in the frame array direction and a positioning body that performs positioning in the frontward-rearward direction are individually provided. 
         [0098]    Additionally, since the second surfaces  58  and  60  are the inclined surfaces that incline in the frame array direction and the frontward-rearward direction, the second surface  60  can be guided by the second surface  58  to smoothly perform positioning when the rear part positioning blocks  54   a  and  54   b  are made to abut against each other. 
         [0099]    Moreover, when the rear part positioning body  52  includes both of the first surfaces  57  and  59  and the second surfaces  58  and  60 , positioning of the frames in the frame array direction can be performed in two places in the frontward-rearward direction, using the front part positioning blocks  53   a  and  53   b  of a simple shape including only the first surfaces  55  and  56 , as the front part positioning body  51 . As a result, a reduction of a burden on the worker applied to the machining of the front part positioning blocks  53   a  and  53   b  and a reduction of working hours can be achieved by an amount equivalent to using the front part positioning blocks  53   a  and  53   b  of a simpler shape. 
         [0100]    Additionally, in addition to positioning the frames adjacent to each other by the positioning unit  50 , positioning the frames  3  adjacent to each other can be performed by the guide rail  39  of the tire unloaders  26 . As a result, the relative positioning of the respective frames  3  at the vertical positions of the frames  3  adjacent to each other to which the guide rail  39  is fixed can be performed. Additionally, since the frames  3  adjacent to each other can be positioned using the guide rail  39 , an increase in the number of parts can be suppressed. 
         [0101]    Moreover, according to the assembly method for a tire vulcanizer system in this embodiment, front part positioning blocks  153   a  and  153   b  and rear part positioning blocks  154   a  and  154   b  are attached by the positioning body attaching step after positional adjustment is performed by the temporary assembling step. Therefore, even if the coupled state is released by the decoupling step, the state where positional adjustment is performed by the temporary assembling step can be reproduced in the main assembling step by performing positioning of the respective frames  3  using the front part positioning blocks  153   a  and  153   b  and the rear part positioning blocks  154   a  and  154   b.    
         [0102]    Next, a tire vulcanizer system in a second embodiment of the invention will be described with reference to the drawings. 
         [0103]    Here, since the tire vulcanizer system of the second embodiment is different from the tire vulcanizer system of the above-described first embodiment only in terms of the configuration of the positioning unit, a description will be made with the same parts designated by the same reference numerals. Additionally, the description that duplicates the description of the first embodiment will be omitted. 
         [0104]      FIG. 11  is a plan view equivalent to  FIG. 9  illustrating a positioning unit  150  in this embodiment. 
         [0105]    As illustrated in  FIG. 11 , the positioning unit  150  includes a front part positioning body  151  and a rear part positioning body  152 . 
         [0106]    The front part positioning body  151  includes a pair of front part positioning blocks  153   a  and  153   b.    
         [0107]    The rear part positioning body  152  includes a pair of rear part positioning blocks  154   a  and  154   b.    
         [0108]    The front part positioning blocks  153   a  and  153   b  are disposed side by side in the frame array direction (leftward-rightward direction of the paper surface of  FIG. 11 ). The front part positioning block  153   a  is attached to a front part  43   c  of the leg unit  43 . The front part positioning block  153   b  is attached to the front part  44   c  of a leg unit  44 . 
         [0109]    The rear part positioning blocks  154   a  and  154   b  are disposed side by side in the frame array direction, similar to the front part positioning blocks  153   a  and  153   b . The rear part positioning block  154   a  is attached to a rear part  43   d  of the leg unit  43 . The rear part positioning block  154   b  is attached to a rear part  44   d  of the leg unit  44 . 
         [0110]    The front part positioning blocks  153   a  and  153   b  and the rear part positioning blocks  154   a  and  154   b  in this embodiment are respectively fixed to the leg units  43  and  44  by welding or the like. The front part positioning body  151  and the rear part positioning body  152  in this embodiment have symmetrical shapes in the frontward-rearward direction. 
         [0111]    The front part positioning block  153   a  includes a first surface  157  and a second surface  158 . The front part positioning block  153   b  includes a first surface  159  and a second surface  160 . The first surfaces  157  and  159  are respectively flat surfaces that extend in the frontward-rearward direction and the upward-downward direction. The first surfaces  157  and  159  abut against each other face to face, thereby performing the relative positioning of the front parts  43   c  and  44   c  in the frame array direction. 
         [0112]    The second surface  158  is also an inclined flat surface that extends from a forward end edge  157   a  of the first surface  157  toward the front in the frame array direction. Similarly, the second surface  160  is also an inclined flat surface that extends from an end edge  159   a  of the first surface  159  toward the front in the frame array direction. The second surfaces  158  and  160  abut against each other face to face, thereby performing the relative positioning of the front parts  43   c  and  44   c  of the frame  3  in the frontward-rearward direction. Since the front part positioning body  151  and the rear part positioning body  152  in this embodiment have symmetrical shapes in the frontward-rearward direction, the parts corresponding to each other will be designated by the same reference numerals, and the detailed description of the rear part positioning body  152  will be omitted. 
         [0113]    That is, the respective second surfaces  158  of the front part positioning body  151  and the rear part positioning body  152  are sandwiched by the second surface  160  of the front part positioning body  151  and the second surface  160  of the rear part positioning body  152  from the outside in the frontward-rearward direction in a state where the first surfaces  157  and  159  abut against each other. 
         [0114]    An assembly method for a tire vulcanizer system in this second embodiment is different from the assembly method for a tire vulcanizer system in the above-described first embodiment in that fastening is not performed by the bolt  67  and the nuts  68 . Therefore, the description of the assembling method in the second embodiment will be omitted. 
         [0115]    Therefore, according to the tire vulcanizer system of the above-described second embodiment, the relative planar positions of the frames  3  can be determined by the positioning unit  150 , similar to the first embodiment. Therefore, for example, the relative planar positions of the frames  3  during a shipment inspection at a shipment destination can be reproduced, for example, by determining the relative planar positions of the frames  3  during a shipment inspection using the positioning unit  150 . Additionally, since the relative planar positions of the frames  3  can be determined by the positioning unit  150 , the relative planar positions of the frames  3  can be determined even if the machining precision of the frames  3  themselves is low. As a result, the machining time and the inspection time of the frames  3  can be shortened. Additionally, a burden on a worker related to positioning work can be reduced. 
         [0116]    Additionally, the relative planar positions of the frames  3  can be determined in a plurality of places of the frames  3  in the frontward-rearward direction by providing the front part positioning body  151  and the rear part positioning body  152  as a plurality of positioning bodies in the frontward-rearward direction. Additionally, the relative planar positions of the frames  3  can be determined simply by making the front part positioning blocks  153   a  and  153   b  of the positioning unit  150  abut against each other and making the rear part positioning blocks  154   a  and  154   b  abut against each other. As a result, the relative planar positions of the frames  3  can be easily determined. Therefore, the burden on the worker can be further reduced. 
         [0117]    Moreover, positioning in the frame array direction can be performed by the first surfaces  157  and  159 , and positioning in the frontward-rearward direction can be determined by the second surfaces  158  and  160 . Therefore, the relative planar positions of the respective frames  3  in the frame array direction and the frontward-rearward direction can be determined by the rear part positioning body  152  and the front part positioning body  151 . As a result, the number of positioning bodies can be reduced as compared to a case where a positioning body that performs positioning in the frame array direction and a positioning body that performs positioning in the frontward-rearward direction are individually provided. 
         [0118]    Additionally, since the front part positioning body  151  and the rear part positioning body  152  are respectively provided with the first surfaces  157  and  159  and the second surfaces  158  and  160 , the rear part positioning body  152  can be made small as compared to the first embodiment. 
         [0119]    Moreover, since the second surfaces  158  and  160  are the inclined surfaces that incline in the frontward-rearward direction with respect to the frame array direction, the second surface  160  can be guided by the second surface  158  to smoothly perform positioning when the rear part positioning blocks  154   a  and  154   b  are made to abut against each other. 
         [0120]    Next, a tire vulcanizer system in a third embodiment of the invention will be described with reference to the drawings. 
         [0121]    Here, since the tire vulcanizer system of the third embodiment is different from the tire vulcanizer system of the above-described first embodiment only in terms of the configuration of the positioning unit, a description will be made with the same parts designated by the same reference numerals. Additionally, the description that duplicates the description of the first embodiment will be omitted. 
         [0122]      FIG. 12  is a plan view equivalent to  FIG. 9  illustrating a positioning unit in this embodiment.  FIG. 13  is a sectional view taken along line XIII-XIII of  FIG. 12 . The positioning unit  250  includes a convex part  70  and a hole part (concave part)  71 . 
         [0123]    The convex part  70  is formed on the bearing part  45  of the mount  9  that supports the frame  3 . One convex part  70  is provided at each of positions that face the front parts  43   c  and  44   c  of the leg units  43  and  44  and the rear parts  43   d  and  44   d  of the leg units  43  and  44 . An upper end of the convex part  70  is formed such that the diameter thereof is reduced upward. By forming only an upper end of the convex part  70  in a diameter-reduced manner in this way, the convex part  70  can be smoothly inserted into the hole part  71 . A case where the convex parts  70  are respectively formed in a columnar shape that protrudes upward has been described in this embodiment. However, the shape of the convex part  70  is not limited to the columnar shape as long as the convex part protrudes upward in a pillar shape. 
         [0124]    The convex part  70  is inserted into the hole part  71 . The hole part  71  is formed so as to have a slightly larger diameter than the external diameter of the convex part  70  such that the convex part  70  can be inserted thereinto, and the inserted convex part  70  is not displaced in the frame array direction and the frontward-rearward direction. The hole parts  71  are respectively formed in the front parts  43   c  and  44   c  of the leg units  43  and  44  and the rear parts  43   d  and  44   d  of the leg units  43  and  44 . 
         [0125]    The assembly method for a tire vulcanizer system using the above positioning unit  250  is the same as the procedure of  FIG. 10  of the above-described first embodiment. For example, first, the hole parts  71  are formed in the leg units  43  and  44  in a state where the frames  3  are installed on the mounts  9  and are precisely positioned. Next, the convex parts  70  are screwed into the mounts  9  and attached thereto via the hole parts  71  (temporary assembling step). Thereafter, the coupled state between the frames  3  is released (decoupling step). Moreover, the mounts  9  on which the convex parts  70  are formed and the plurality of tire vulcanizers  2  are individually conveyed respectively. Thereafter, positioning of the frames  3  is performed such that the mounts  9  are installed in installation locations, such as a delivery destination and the convex parts  70  of the mounts  9  are inserted into the hole parts  71  of the frames  3  of the respective tire vulcanizers  2  (main assembling step). 
         [0126]    Therefore, according to the tire vulcanizer system in the above-described third embodiment, positioning of the frames  3  adjacent to each other in the frontward-rearward direction and the frame array direction can be performed by arranging the leg units  43  and  44  such that the convex parts  70  that protrude upward from the bearing parts  45  of the mounts  9  are inserted into the hole parts  71  of the leg units  43  and  44 . As a result, positioning of the frames in the frontward-rearward direction and the frame array direction can be easily performed. 
         [0127]    Additionally, when being mainly assembled to the same mounts  9  as the mounts  9  used during temporary assembling, the relative planar positions of the frames  3  adjacent to each other can be determined with a smaller number of parts. 
         [0128]    In addition, although the hole parts  71  passing through the leg units  43  and  44  up and down have been described as an example as the concave parts, the hole parts may not passes through the leg units so long as the insertion of the convex parts  70  therethrough is possible. 
         [0129]    Next, a tire vulcanizer system in a fourth embodiment of the invention will be described with reference to the drawings. 
         [0130]    Here, since the tire vulcanizer system of the fourth embodiment is different from the tire vulcanizer system of the above-described first embodiment only in terms of the configuration of the positioning unit, a description will be made with the same parts designated by the same reference numerals. Additionally, the description that duplicates the description of the first embodiment will be omitted. 
         [0131]      FIG. 14  is a plan view illustrating a positioning unit  350  in the fourth embodiment of the invention. 
         [0132]    As illustrated in  FIG. 14 , the positioning unit  350  includes a first convex part  80  and second convex parts  81   a  and  81   b.    
         [0133]    The first convex part  80  performs positioning of the leg units  43  and  44  of the frames  3  in the frame array direction. The first convex part  80  protrudes upward from the bearing parts  45  of the mounts  9  that support the frames  3 . The first convex part  80  is formed in the shape of a flat plate that extends in the upward-downward direction and the frontward-rearward direction. The first convex part  80  is disposed at an intermediate part between the bearing parts  45  of the mounts  9  in the frame array direction. The first convex part  80  has first surfaces  82  and  83  that perform positioning of the leg units  43  and  44  of the frames  3  in the frame array direction. 
         [0134]    In this embodiment, the mutually facing outer edges  43   a  and  44   a  of the leg units  43  and  44  are formed in a linear shape that extends in the frontward-rearward direction. Therefore, the first surfaces  82  and  83  are respectively flat surfaces capable of abutting against the whole regions of the outer edges  43   a  and  44   a  in the frontward-rearward direction. By changing the thickness of this first convex part  80  in the frame array direction, it is possible to change the distance in the array direction between the frames  3  adjacent to each other. 
         [0135]    The second convex parts  81   a  and  81   b  perform positioning of the leg units  43  and  44  of the frames  3  in the frontward-rearward direction. The second convex parts  81   a  and  81   b , similar to the first convex part  80 , protrude upward from the bearing parts  45  of the mounts  9  that support the frames  3 . The second convex parts  81   a  and  81   b  are formed in the shape of a flat plate that extends in the upward-downward direction and the frame array direction. The second convex parts  81   a  and  81   b  include second surfaces  84  and  85  that perform positioning of the leg units  43  and  44  in the frontward-rearward direction. The second surfaces  84  and  85  are arranged in parallel and face to face. 
         [0136]    In this embodiment, front edges  43   e  and  44   e  and rear edges  43   f  and  44   f  of the leg units  43  and  44  are formed in a linear shape that extends in the frame array direction. Therefore, the second surface  84  is a flat surface capable of simultaneously abutting against both of the front edges  43   e  and  44   e  of the leg units  43  and  44 . Additionally, the second surface  85  is a flat surface capable of simultaneously abutting against the rear edges  43   f  and  44   f  of the leg units  43  and  44 . 
         [0137]    The assembly method for a tire vulcanizer system using the above positioning unit  350  is the same as the procedure of  FIG. 10  of the above-described first embodiment. The second convex parts  81   a  and  81   b  are fixed to the bearing parts  45  of the mounts  9  by welding or the like such that the second surface  84  abuts against the front edges  43   e  and  44   e  and the second surface  85  abuts against the rear edges  43   f  and  44   f  in a state where the frames  3  are precisely positioned (temporary assembling step). Here, in the fourth embodiment, similar to the third embodiment, after the decoupling step is performed, the mounts  9  are individually conveyed together with the tire vulcanizers  2 , and the main assembling step is performed in an installation location that is a conveyance destination. 
         [0138]    Therefore, according to the tire vulcanizer system of the above-described fourth embodiment, positioning of the frames  3  adjacent to each other in the frontward-rearward direction and the frame array direction can be performed by arranging the frames  3  such that the leg units  43  and  44  abut against the first convex part  80  and the second convex part  81 . As a result, positioning of the frames  3  in the frontward-rearward direction and the frame array direction can be easily performed. 
         [0139]    Next, a tire vulcanizer system in a fifth embodiment of the invention will be described with reference to the drawings. Here, since the tire vulcanizer system of the fifth embodiment is provided by substituting the second convex parts  81   a  and  81   b  of the positioning unit  350  of the above-described fourth embodiment with a key mechanism, a description will be made with the same parts designated by the same reference numerals. Additionally, the description that duplicates the description of the above-described respective embodiments will be omitted. 
         [0140]      FIG. 15  is a plan view illustrating a positioning unit  450  in the fifth embodiment.  FIG. 16  is a side sectional view of the positioning unit  450 . 
         [0141]    As illustrated in  FIGS. 15 and 16 , the positioning unit  450  includes the first convex part  80  and a key mechanism  90 . 
         [0142]    The first convex part  80  includes the first surfaces  82  and  83  that performs positioning of the leg units  43  and  44  of the frames  3  in the frame array direction. The first convex part  80  is formed so as to protrude upward from the bearing parts  45  of the mounts  9  that support the frames  3 . Additionally, a through-hole  94  is formed in the first convex part  80  such that a key member  91  of the key mechanism  90  can be passed therethrough in the frame array direction. 
         [0143]    The key mechanism  90  performs positioning of the leg units  43  and  44  in the frontward-rearward direction. The key mechanism  90  includes the key member  91 , a frame-side key groove  92 , and a mount-side key groove  93 . 
         [0144]    The key member  91  is formed in a pillar shape with a rectangular section. The length of the key member  91  is made larger than a length obtained by adding the width dimensions of the two leg units  43  and  44  to the width dimension of the first convex part  80 . Here, the sectional shape of the key member  91  is not limited to the above-described rectangular shape. 
         [0145]    The frame-side key groove  92  is a groove into which the key member  91  is inserted. The frame-side key groove  92  is formed in the lower surfaces of the leg units  43  and of the frames  3 . The frame-side key groove  92  is linearly formed in the frame array direction. The width dimension of the frame-side key groove  92  is made slightly larger than the width dimension of the key member  91  such that the key member  91  can be inserted into the frame-side key groove. The depth dimension of the frame-side key groove  92  is made equal to or lager than half of the height dimension of the key member  91  and made smaller than the height dimension of the key member  91 . 
         [0146]    The mount-side key groove  93  is arranged to face the frame-side key groove  92 , and the key member  91  is able to be inserted into the mount-side key groove simultaneously with the frame-side key groove  92 . The mount-side key groove  93  is formed in the upper surfaces of the bearing parts  45  of the mounts  9 . The mount-side key groove  93  is linearly formed in the frame array direction, similar to the frame-side key groove  92 . The width dimensions of the mount-side key groove  93  are also the same width dimension as the width dimension of the frame-side key groove  92 . That is, the width dimension of the mount-side key groove  93  is made slightly larger than the width dimension of the key member  91  such that the key member  91  can be inserted into the mount-side key groove. The depth dimension of the mount-side key groove  93 , similar to the depth dimension of the frame-side key groove  92 , is also made equal to or larger than half of the height dimension of the key member  91  and made smaller than the height of the key member  91 . 
         [0147]    The assembly method for a tire vulcanizer system using the above positioning unit  450  is the same as the procedure of  FIG. 10  of the above-described first embodiment. For example, first, the first convex part  80  is inserted between the leg units  43  and  44  in a state where the frames  3  are installed on the mounts  9  and precisely positioned. Next, the frame-side key groove  92  and the mount-side key groove  93  are formed at positions where the key grooves face each other. Moreover, the key member  91  is inserted from end sides of the frame-side key groove  92  and the mount-side key groove  93  (temporary assembling step). 
         [0148]    Thereafter, the key member  91  is extracted and the coupled state between the frames  3  is released (decoupling step). Next, the mounts  9  on which the first convex part  80  is formed and the plurality of tire vulcanizers  2  is individually conveyed respectively. Then, the mounts  9  are installed in installation locations, such as a delivery destination. Moreover, positioning of the leg units  43  and  44  in the frame array direction is performed by making the outer edges  43   a  and  44   a  of the leg units  43  and  44  abut against the first surfaces  82  and  83  of the first convex part  80 . Thereafter, positioning of the leg units  43  and  44  in the frontward-rearward direction is performed by inserting the key member  91  into the frame-side key groove  92  and the mount-side key groove  93  (main assembling step). 
         [0149]    Therefore, according to the tire vulcanizer system of the above-described fifth embodiment, the leg units  43  and  44  of the frames  3  adjacent to each other can be respectively positioned in the frontward-rearward direction by the key mechanism  90 . Additionally, positioning of the leg units  43  and  44  in the frame array direction can be performed by disposing the first convex part  80  between the leg units  43  and  44  of the frames  3  adjacent to each other. As a result, positioning of the frames  3  in the frontward-rearward direction and the frame array direction can be easily performed. 
         [0150]    Moreover, when the key mechanism  90  is used, this is advantageous in that positioning of the leg units  43  and in the frontward-rearward direction can be easily performed irrespective of the outer shape of the leg units  43  and  44  in a plan view. 
         [0151]    In addition, the invention is not limited to the configuration of the above-described respective embodiments, and design changes can be made without departing from the concept of the invention. 
         [0152]    A case where the second surfaces  58 ,  60 ,  158 , and  160  are the inclined flat surfaces has been described in the above-described first and second embodiments. However, the second surfaces  58 ,  60 ,  158 , and  160  are not limited to the inclined flat surfaces. For example, the second surfaces  58 ,  60 ,  158 , and  160  may be flat surfaces that extend in the frame array direction and the upward-downward direction. Additionally, the second surfaces  58 ,  60 ,  158 , and  160  may be curved surfaces or spherical surfaces. 
         [0153]    Moreover, a case where the front part positioning blocks  53   a  and  53   b  are fixed to the leg units  43  and  44  with bolts, nuts, or the like has been exemplified in the above-described first embodiment. Additionally, a case where the rear part positioning blocks  54   a  and  54   b  are fixed by welding or the like has been exemplified. However, the method of fixing the front part positioning blocks  53   a  and  53   b  and the rear part positioning blocks  54   a  and  54   b  is not limited to the above method. For example, any one of welding, bonding, fastening with bolts, or the like may be appropriately selected. 
         [0154]    Additionally, a case where two tire vulcanizers  2  are arranged side by side has been described in the above-described respective embodiments. However, the number of tire vulcanizers  2  to be arranged side by side is not limited to two. For example, three or more tire vulcanizers  2  may be arranged side by side. 
         [0155]    Moreover, in the above-described respective embodiments, the gate type-shaped frames  3  have been described as an example. However, the shape of the frames  3  is not limited to the gate shape. Additionally, a case where only one key mechanism  90  is provided has been described in the above-described fifth embodiment. However, the key mechanisms  90  may be provided in two or more places, such as the front parts  43   c  and  44   c , the rear parts  43   d  and  44   d , and the like of the leg units  43  and  44 . 
         [0156]    Moreover, in the above-described first embodiment, an example in which the guide rail  39  of the tire unloader  26  is fixed so as to stretch over the frames adjacent to each other has been described as an example. However, the guide rail of at least one of the tire unloader  26  and the tire loader  25  may be attached so as to stretch over the frames as a fixing part. 
       INDUSTRIAL APPLICABILITY 
       [0157]    In a tire vulcanizer system obtained by coupling a plurality of tire vulcanizers each including a frame and a vulcanizing mechanism supported by the frame to vulcanize a green tire, the machining time and the inspection time of the frames can be shortened, and it is possible to alleviate a burden on a worker caused by positioning work. 
       REFERENCE SIGNS LIST 
       [0000]    
       
         
           
               1 : TIRE VULCANIZER SYSTEM 
               2 : TIRE VULCANIZER 
               3 : FRAME 
               4 : VULCANIZING MECHANISM 
               5 : OPENING 
               6 : SIDE WALL 
               7 : UPPER FRAME 
               8 : LOWER FRAME 
               9 : MOUNT 
               10 : MOLD 
               11 : UPPER MOLD 
               12 : LOWER MOLD 
               13 : UPPER MOLD SUPPORTING MECHANISM 
               14 : LOWER MOLD SUPPORTING MECHANISM 
               15 : UPPER MOVABLE BODY 
               16 : GUIDE BRACKET 
               17 : PRESSURIZING FORCE TRANSMISSION MEMBER 
               18 : PRESSURIZING CYLINDER 
               19 : LIFTING CYLINDER 
               21 : GUIDE RAIL 
               22 : CENTER MECHANISM 
               23 : LOWER PLATEN 
               25 : TIRE LOADER (CARRYING-IN UNIT) 
               26 : TIRE UNLOADER (CARRYING-OUT UNIT) 
               27 : TURNING ARM 
               28 : TIRE CHUCK 
               29 : LOADER LIFTING MECHANISM 
               31 : MAIN LIFT BODY 
               32 : LIFTING CYLINDER 
               33 : GUIDE RAIL 
               33   a : MAIN RAIL BODY 
               34 : TURNING ARM 
               35 : TIRE CHUCK 
               36 : UNLOADER LIFTING MECHANISM 
               37 : MAIN LIFTBODY 
               38 : LIFTING CYLINDER 
               39 : GUIDE RAIL 
               39   a : REAR SURFACE 
               39   b : MAIN RAIL BODY 
               40 : RIB 
               40   a : SERVICE HOLE 
               41 : FIRST END 
               42 : SECOND END 
               43 : LEG UNIT 
               43   a : OUTER EDGE 
               43   b : INCLINED EDGE 
               43   c : FRONT PART 
               43   d : REAR PART 
               43   e : FRONT EDGE 
               43   f : REAR EDGE 
               44 : LEG UNIT 
               44   a : OUTER EDGE 
               44   b : INCLINED EDGE 
               44   c : FRONT PART 
               44   d : REAR PART 
               44   e : FRONT EDGE 
               44   f : REAR EDGE 
               45 : BEARING PART (SUPPORT SURFACE) 
               47 : FASTENING MEMBER 
               50 : POSITIONING UNIT 
               51 : FRONT PART POSITIONING BODY 
               52 : REAR PART POSITIONING BODY 
               53   a : FRONT PART POSITIONING BLOCK 
               53   b : FRONT PART POSITIONING BLOCK 
               54   a : REAR PART POSITIONING BLOCK 
               54   aa : FRONT PART 
               54   ab : REAR PART 
               54   b : REAR PART POSITIONING BLOCK 
               54   ba : FRONT PART 
               54   bb : REAR PART 
               55 : FIRST SURFACE 
               56 : FIRST SURFACE 
               57 : FIRST SURFACE 
               57   a : END EDGE 
               58 : SECOND SURFACE 
               59 : FIRST SURFACE 
               59   a : END EDGE 
               60 : SECOND SURFACE 
               61 : CONNECTING SURFACE 
               62 : CONNECTING SURFACE 
               63 : CONCAVE PART 
               64 : CONVEX PART 
               65 : THROUGH-HOLE 
               66 : THROUGH-HOLE 
               67 : BOLT 
               68 : NUT 
               70 : CONVEX PART 
               71 : CONCAVE PART 
               80 : FIRST CONVEX PART 
               81   a : SECOND CONVEX PART 
               81   b : SECOND CONVEX PART 
               82 : FIRST SURFACE 
               83 : FIRST SURFACE 
               84 : SECOND SURFACE 
               85 : SECOND SURFACE 
               90 : KEY MECHANISM 
               91 : KEY MEMBER 
               92 : FRAME-SIDE KEY GROOVE 
               93 : MOUNT-SIDE KEY GROOVE 
               151 : FRONT PART POSITIONING BODY 
               152 : REAR PART POSITIONING BODY 
               153   a : FRONT PART POSITIONING BLOCK 
               153   b : FRONT PART POSITIONING BLOCK 
               154   a : REAR PART POSITIONING BLOCK 
               154   b : REAR PART POSITIONING BLOCK 
               157 : FIRST SURFACE 
               157   a : END EDGE 
               158 : SECOND SURFACE 
               159 : FIRST SURFACE 
               160 : SECOND SURFACE 
             C: CENTRAL PART 
             F: INSTALLATION SURFACE