JP2011031519A - Mold for vulcanization - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a mold for vulcanization reducing the number of prepared display panels by sharing a support panel and identification panels for molding common identification marks. <P>SOLUTION: The mold 10 for vulcanization of a pneumatic tire is used such that the identification panels 32, 34, 36 for molding the identification marks such as letters and patterns onto a side wall part of the pneumatic tire are attached to panel-attaching holes 26, 28, 30 of the support panel 14 and the support panel 14 to which the identification panels 32, 34, 36 are attached is attached to a panel-attaching hollow part 16 of the tire molding part 12 of the mold 10 for vulcanization by using a fastening member 24 such as a volt. Therefore, by replacing the identification panels 32, 34, 36 to be attached to the panel-attaching holes 26, 28, 30 of the support panel 14, the identification marks such as the letters and patterns to be molded onto the side wall part of the pneumatic tire can be altered without changing the support panel 14. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a vulcanization mold.

  When forming a pneumatic tire with a vulcanization mold, the same vulcanization mold is used. At this time, identification marks such as letters and symbols indicating the manufacturing time, manufacturing location, destination, etc. are formed on the sidewall portion of the tire. In order to replace this identification mark according to changes, a stamping panel independent from the vulcanizing mold is prepared for the marking, and this panel is used by being detachably attached to the tire molding surface of the vulcanizing mold. ing.

  For example, Patent Documents 1 and 2 disclose a configuration in which a jig (panel) such as a plate or a template is detachably attached to a recess formed in a vulcanization mold (molding die).

JP 2006-1224 A JP 59-55730 A

  However, in the vulcanization molds as in Patent Documents 1 and 2, it is necessary to prepare a panel for each different marking. For this reason, as the number and types of identification marks displayed on the tire increase, it is necessary to prepare the number of panels, and there is a problem that the number of prepared panels increases.

  The present invention has been made to solve the above problems, and an object thereof is to obtain a vulcanization mold capable of reducing the number of panels to be prepared.

  The mold for vulcanization according to the first aspect of the present invention includes a tire molded portion in which a panel mounting concave portion is formed, and a support panel that is detachably mounted in the panel mounting concave portion of the tire molded portion and in which a panel mounting hole is formed. And an identification panel that is detachably attached to the panel attachment hole of the support panel and that forms an identification mark on the surface of the rubber to be molded.

  An identification panel for molding an identification mark on the surface of the rubber to be molded is attached to the panel attachment hole of the support panel, and the support panel to which the identification panel is attached is attached to the panel attachment recess of the tire molding portion in the vulcanization mold. For this reason, by replacing the identification panel attached to the panel attachment hole of the support panel, it is possible to change the identification mark molded on the surface of the rubber to be molded without changing the support panel. As a result, the support panel and the identification panel for forming the common identification mark can be shared. Therefore, when the number of identification marks to be molded on each rubber to be molded increases, it is conventional to separately prepare a panel in which a part for molding the identification mark is integrated in advance corresponding to each rubber to be molded. In comparison, the total number of support panels and identification panels to be prepared can be reduced.

  According to a second aspect of the present invention, in the vulcanization mold according to the first aspect, the mounting direction of the identification panel to the panel mounting hole of the support panel is the support to the panel mounting recess of the tire molding portion. It is opposite to the panel mounting direction, and the identification panel does not penetrate the panel mounting hole of the support panel.

  The attachment direction of the identification panel to the panel attachment hole of the support panel is opposite to the attachment direction of the support panel to the panel attachment recess of the tire molding portion, and the identification panel has a panel attachment hole of the support panel. Do not penetrate. For this reason, in the state which attached the support panel to the panel attachment recessed part of a tire molding part, an identification panel does not drop out from the panel attachment hole of a support panel.

  According to a third aspect of the present invention, in the vulcanization mold according to the first aspect, the hole wall surface of the panel mounting hole of the support panel, and at least a part of the outer peripheral surface of the identification panel in contact with the hole wall surface, The cross-sectional shape is inclined in a direction that becomes wider toward the mounting direction of the tire forming portion of the support panel to the panel mounting recess.

  In the tire molding portion, the cross-sectional shape of the hole wall surface of the panel mounting hole of the support panel and at least a part of the outer peripheral surface of the identification panel that contacts the hole wall surface is It inclines in the direction which becomes wide toward the attachment direction. For this reason, it is possible to prevent the identification panel from dropping from the panel mounting hole of the support panel in a state where the support panel is mounted in the panel mounting recess of the tire molding portion with a simple configuration. In addition, since the insertion side opening of the panel mounting hole of the support panel is wider than the end portion on the mounting side of the identification panel, it is easy to mount the identification panel to the panel mounting hole.

  The invention according to claim 4 is the vulcanization mold according to any one of claims 1 to 3, wherein the side wall surface of the panel mounting recess of the tire molding portion and the support panel that contacts the side wall surface A cross-sectional shape of at least a part of the outer peripheral surface of the support panel is inclined in a direction that becomes narrower in a direction in which the support panel is attached to the panel mounting recess of the tire molding portion.

  The cross-sectional shape of the side wall surface of the panel mounting recess of the tire molding portion and at least a part of the outer peripheral surface of the support panel that contacts the side wall surface is directed toward the mounting direction of the tire molding portion of the support panel to the panel mounting recess. Inclined in the direction of narrow width. For this reason, the opening part of the panel attachment recessed part of a tire molding part is large compared with the edge part of the attachment side in a support panel. As a result, it becomes easy to attach the tire molding portion of the support panel to the panel mounting recess.

  As described above, the vulcanization mold according to the first aspect of the present invention can reduce the number of display panels to be prepared.

  The vulcanization mold according to the second aspect of the present invention can prevent the identification panel from dropping from the panel attachment hole of the support panel in a state where the support panel is attached to the panel attachment recess of the tire molding portion.

  The vulcanization mold of the present invention according to claim 3 has a simple configuration so that the identification panel does not fall out of the panel attachment hole of the support panel in a state where the support panel is attached to the panel attachment recess of the tire molding portion. it can.

  According to the fourth aspect of the present invention, the vulcanization mold of the present invention can be easily attached to the panel mounting recess of the tire molding portion of the support panel.

It is a perspective view which shows the support panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a side view which shows the support panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the identification panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the identification panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the identification panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the identification panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a perspective view which shows the identification panel of the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. It is a top view which shows the mold for vulcanization | cure which concerns on 1st Embodiment of this invention. FIG. 9 is a cross-sectional view taken along the line 9-9 in FIG. 8. It is a perspective view which shows the support panel of the mold for vulcanization | cure which concerns on 2nd Embodiment of this invention. It is a side view which shows the support panel of the mold for vulcanization | cure which concerns on 2nd Embodiment of this invention. It is a perspective view which shows the support panel of the mold for vulcanization | cure which concerns on 3rd Embodiment of this invention. It is a top view which shows the mold for vulcanization | cure which concerns on 3rd Embodiment of this invention. It is a side view which shows the support panel of the mold for vulcanization | cure which concerns on 4th Embodiment of this invention. It is a perspective view which shows the support panel of the mold for vulcanization | cure which concerns on other embodiment of this invention. It is a side view which shows the support panel of the mold for vulcanization | cure which concerns on other embodiment of this invention.

(First embodiment)
Below, 1st Embodiment in this invention is described according to FIGS.
As shown in FIG. 8, a tire molding portion 12 is formed as a half-shaped concave portion in a vulcanization mold 10 for a pneumatic tire as a vulcanization mold in the present embodiment. A thin plate-like support panel 14 (also referred to as a main panel) is detachably attached to the tire molding portion 12 of the vulcanizing mold 10. FIG. 8 shows one of the vulcanization molds 10 (for example, the upper mold) of the pneumatic tire divided into the upper mold and the lower mold.

  More specifically, as shown in FIG. 9, the tire molding portion 12 of the vulcanizing mold 10 is formed with a panel mounting recess 16 that is a linear longitudinal recess, and this panel mounting recess. A support panel 14 is detachably attached to 16.

  As shown in FIG. 1, through holes 20 are formed in both longitudinal ends 14 </ b> A and 14 </ b> B of the support panel 14. Further, as shown in FIG. 8, fastening members 24 such as bolts are inserted into the through holes 20 of the longitudinal end portions 14 </ b> A and 14 </ b> B of the support panel 14, and the tire forming portions are formed by these fastening members 24. The support panel 14 is fixed to the twelve panel mounting recesses 16.

  As shown in FIG. 2, both side wall surfaces 16A, 16B in the longitudinal direction as at least a part of the outer peripheral surface of the panel mounting recess 16 of the vulcanizing mold 10, and the support panel 14 in contact with the both side wall surfaces 16A, 16B. The cross-sectional shape with both side wall surfaces 14C and 14D in the longitudinal direction as at least a part of the outer peripheral surface in FIG. 2 is the mounting direction of the support panel 14 in the panel mounting recess 16 of the vulcanizing mold 10 (direction of arrow A in FIG. It inclines in the direction which becomes narrow toward. Further, as shown in FIG. 1, the two-side wall surfaces 16A, 16B in the longitudinal direction of the panel mounting recess 16 of the vulcanizing mold 10 and the two side wall surfaces 14C, 14D in the longitudinal direction of the support panel 14 are arc-shaped. It has become.

  The cross-sectional shape of the entire side wall surface (outer peripheral surface) of the panel mounting recess 16 of the vulcanizing mold 10 and the entire side wall surface (outer peripheral surface) of the support panel 14 in contact therewith is determined by the vulcanizing mold 10. It is good also as a structure which inclines in the direction which becomes narrow toward the attachment direction (arrow A direction of FIG. 2) of the support panel 14 to the panel attachment recessed part 16 of this.

  Accordingly, the opening 16C of the panel mounting recess 16 of the vulcanizing mold 10 is wider than the end 14E on the mounting side of the supporting panel 14, and the panel mounting of the vulcanizing mold 10 of the supporting panel 14 is performed. The mounting to the recess 16 is easy.

  As shown in FIG. 1, a plurality of (three in this embodiment) panel mounting holes 26, 28, and 30 are formed in the longitudinal intermediate portion 14 </ b> F of the support panel 14 at predetermined intervals along the longitudinal direction. ing. Also, in these panel mounting holes 26, 28, 30 are identification panels 32 for forming identification marks such as letters and symbols indicating manufacturing time, manufacturing location, destination, etc. on the side wall portion of the pneumatic tire. 34 and 36 (also referred to as small panels) are detachably attached.

The panel mounting holes 26, 28, and 30 are through holes having a square shape in plan view, and the identification panels 32, 34, and 36 are trapezoidal in shape in plan view.
In addition, the planar view shape of the panel attachment holes 26, 28, and 30 and the identification panels 32, 34, and 36 is not limited to a square, and may be other shapes such as a rectangle, a circle, a triangle, a polygon, and an ellipse.
The mounting direction of the identification panels 32, 34, 36 to the panel mounting holes 26, 28, 30 of the support panel 14 (in the direction of arrow B in FIG. 2) is the support to the panel mounting recess 16 of the vulcanizing mold 10. The direction is opposite to the mounting direction of the panel 14 (the direction of arrow A in FIG. 2), and the identification panel 32, 34, 36 is identified when inserted into the panel mounting holes 26, 28, 30 of the support panel 14. The panels 32, 34, and 36 are configured not to pass through the panel mounting holes 26, 28, and 30 of the support panel 14 (configuration that does not fall out).

  More specifically, as shown in FIG. 2, the entire surface of the four side surfaces of the hole wall surfaces 26A, 28A, 30A of the panel mounting holes 26, 28, 30 of the support panel 14 and the hole wall surfaces 26A, 28A, 30A The cross-sectional shape of the identification panels 32, 34, 36 in contact with the entire four side surfaces of the outer peripheral surfaces 32 A, 34 A, 36 A is the mounting direction of the support panel 14 in the panel mounting recess 16 of the vulcanizing mold 10 (FIG. 2). (In the direction of arrow A) is inclined in a wide direction.

  It should be noted that a part of the four wall surfaces 26A, 28A, 30A of the panel mounting holes 26, 28, 30 of the support panel 14 and the identification panels 32, 34, 36 that contact the hole wall surfaces 26A, 28A, 30A. Only the cross-sectional shape of the outer peripheral surfaces 32A, 34A, and 36A is wide in the mounting direction of the support panel 14 to the panel mounting recess 16 of the vulcanizing mold 10 (the direction of arrow A in FIG. 2). It is good also as a structure which inclines in the direction which becomes.

  Therefore, when the support panel 14 is attached to the panel attachment recess 16 of the vulcanizing mold 10, the identification panels 32, 34, and 36 are configured not to drop out from the panel attachment holes 26, 28, and 30 of the support panel 14. Yes. Further, when the support panel 14 is attached to and detached from the panel mounting recess 16 of the vulcanizing mold 10, the identification panels 32, 34, and 36 are attached to the support panel 14 by maintaining the vertical direction of the support panel 14. The panel mounting holes 26, 28, 30 are configured not to drop off. In addition, compared with 32B, 34B, and 36B on the mounting side end portions (end portions for forming the identification marks) 32B, 34B, and 36B in the identification panels 32, 34, and 36, the insertion side of the panel mounting holes 26, 28, and 30 in the support panel 14 Since the openings 26B, 28B, and 30B are widened, the identification panels 32, 34, and 36 can be easily attached to the panel mounting holes 26, 28, and 30 of the support panel 14.

  As shown in FIG. 2, the identification marks 40 of the identification panels 32, 34, and 36 project from the end portions 32B, 34B, and 36B of the identification panels 32, 34, and 36, and are convex portions.

  The identification mark 40 includes the alphabet shown in FIG. 3, the numbers shown in FIG. 4, the regulatory requirement marks shown in FIG. 5, the symbols shown in FIG.

  Therefore, on the sidewall portion of the pneumatic tire vulcanized and molded by the vulcanizing mold 10, characters, symbols, etc. indicating the manufacturing time, manufacturing location, destination, etc. are indicated by these identification panels 32, 34, 36. The identification mark is formed as a recess.

  If no identification mark is required, an identification panel 42 having no identification mark is attached to the panel attachment holes 26, 28, 30 of the support panel 14 as shown in FIG. In FIG. 7, reference numeral 42A denotes an outer peripheral surface of the identification panel 42, and reference numeral 42B denotes an end portion on the attachment side.

(Function and effect)

  In the pneumatic tire vulcanization mold 10 according to the present embodiment, an identification panel 32 for forming identification marks such as letters and symbols indicating manufacturing time, manufacturing location, destination, etc. on the sidewall portion of the pneumatic tire. , 34, 36 are attached to the panel attachment holes 26, 28, 30 of the support panel 14, and the support panel 14 attached with the identification panels 32, 34, 36 is attached to the panel attachment recess of the tire molding portion 12 in the vulcanizing mold 10. 16 is used with a fastening member 24 such as a bolt. For this reason, by changing the identification panels 32, 34, 36 attached to the panel attachment holes 26, 28, 30 of the support panel 14, the identification mark formed on the sidewall portion of the pneumatic tire is changed without changing the support panel 14. It becomes possible to do.

  As a result, the support panel 14 and the identification panel for forming the common identification mark can be shared. Therefore, when the number of identification marks to be formed on each pneumatic tire increases, a panel in which convex portions for forming the identification marks are previously prepared corresponding to each pneumatic tire is prepared separately. As compared with the above, the total number of the support panel 14 and the identification panels 32, 34, 36 to be prepared can be reduced.

  Further, by unifying the shape of the panel mounting holes 26, 28, 30 and the identification panels 32, 34, 36 of the support panel 14 between the sizes of the pneumatic tires to be molded, it is possible to reduce the tire size between the tire sizes, which has been difficult with the conventional panel. Panel sharing is possible for at least the identification panels 32, 34, 36.

  Further, it is possible to cope with a new mark by changing the combination or arrangement of the existing identification panels 32, 34, and 36, and it is not necessary to newly manufacture a panel corresponding to the new mark.

  Therefore, in this embodiment, by securing a plurality of types of identification panels and a certain amount in advance, it is possible to respond quickly and at a lower cost compared to the conventional case where a panel is newly created for each individual size and display. .

  Further, in the present embodiment, as shown in FIG. 2, the attaching direction of the identification panels 32, 34, 36 to the panel attaching holes 26, 28, 30 of the support panel 14 (the direction of arrow B in FIG. 2) is vulcanized. The mounting direction of the support panel 14 to the panel mounting recess 16 of the metal mold 10 is opposite to the mounting direction (arrow A direction in FIG. 2). That is, outer peripheral surfaces 32A, 34A of the panel mounting holes 26A, 28A, 30A of the support panel 14 and the identification panels 32, 34, 36 abutting against the hole wall surfaces 26A, 28A, 30A, The cross-sectional shape with 36A is inclined in a direction that becomes wider toward the mounting direction of the support panel 14 to the panel mounting recess 16 of the vulcanizing mold 10 (direction of arrow A in FIG. 2).

  For this reason, when the identification panels 32, 34, 36 are inserted into the panel mounting holes 26, 28, 30 of the support panel 14, the identification panels 32, 34, 36 are removed from the panel mounting holes 26, 28, 30 of the support panel 14. It will not fall out. As a result, when the support panel 14 is mounted on the panel mounting recess 16 of the vulcanizing mold 10 with a simple configuration (when the tire is vulcanized), the identification panels 32, 34, and 36 are the panel mounting holes of the support panel 14. 26, 28, and 30, and when the support panel 14 is attached to and detached from the panel mounting recess 16 of the vulcanizing mold 10, the identification panel 32, 34 and 36 do not fall out of the panel mounting holes 26, 28 and 30 of the support panel 14. Further, the insertion side of the panel mounting holes 26, 28, and 30 of the support panel 14 as compared with the end portions (end portions on the side where the identification marks are formed) 32B, 34B, and 36B of the identification panels 32, 34, and 36 are installed. Since the openings 26B, 28B, and 30B are widened, the identification panels 32, 34, and 36 can be easily attached to the panel mounting holes 26, 28, and 30 of the support panel 14 and workability is improved.

  Further, in the present embodiment, as shown in FIG. 2, both side wall surfaces 16A and 16B in the longitudinal direction of the outer peripheral surface of the panel mounting recess 16 of the vulcanizing mold 10 and support in contact with these side wall surfaces 16A and 16B. The cross-sectional shape with both side wall surfaces 14C and 14D in the longitudinal direction of the outer peripheral surface of the panel 14 is directed to the mounting direction of the support panel 14 to the panel mounting recess 16 of the vulcanizing mold 10 (arrow A direction in FIG. 2). Inclined in the direction of narrow width. For this reason, the opening 16C of the panel mounting recess 16 of the vulcanizing mold 10 is wider than the end 14E on the mounting side of the support panel 14. Therefore, it becomes easy to attach the support panel 14 to the panel mounting recess 16 of the vulcanizing mold 10 and workability is improved.

(Second Embodiment)
Below, 2nd Embodiment in this invention is described according to FIG.10 and FIG.11. Further, the same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIGS. 10 and 11, in the present embodiment, the identification marks 40 of the identification panels 32, 34, and 36 are concave portions. For this reason, in the present embodiment, the manufacturing time, the manufacturing place, the destination, etc. are indicated on the sidewall portion of the pneumatic tire vulcanized by the vulcanizing mold 10 by these identification panels 32, 34, 36. Identification marks such as characters and symbols to be shown are formed as concave portions. In the present embodiment, the same operations and effects as those in the first embodiment can be obtained.

(Third embodiment)
Below, 3rd Embodiment in this invention is described according to FIG.12 and FIG.13. Further, the same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

  As shown in FIG. 12, in this embodiment, the support panel 14 has an arc shape along the longitudinal direction. Further, as shown in FIG. 13, the panel mounting recess 16 formed in the tire molding portion 12 of the vulcanizing mold 10 also has an arc shape along the longitudinal direction, and the support panel 14 is formed in the panel mounting recess 16. Is fitted and installed. In the present embodiment, the same operations and effects as those in the first embodiment can be obtained.

(Fourth embodiment)
Below, 4th Embodiment in this invention is described according to FIG. Further, the same members as those in the first embodiment are denoted by the same reference numerals, and the description thereof is omitted.

As shown in FIG. 14, in this embodiment, as in the first embodiment (FIG. 2), the hole wall surfaces 26A, 28A, and 30A of the panel mounting holes 26, 28, and 30 of the support panel 14, and the hole wall surfaces 26A. , 28A, 30A, the cross-sectional shape of the outer peripheral surfaces 32A, 34A, 36A of the identification panels 32, 34, 36 abutting the mounting direction of the support panel 14 to the panel mounting recess 16 of the vulcanizing mold 10 (FIG. 14 (in the direction of arrow A)).
On the other hand, in the present embodiment, locking portions 26D, 28D, and 30D are formed in the opposite insertion side openings 26C, 28C, and 30C of the panel mounting holes 26, 28, and 30 of the support panel 14. Further, the shape of the identification panels 32, 34, and 36 when viewed from the side is rectangular, and the end portions on the attachment side of the identification panels 32, 34, and 36 (end portions on the side where the identification marks are formed) 32B, 34B, and 36B. The outer peripheral portion engages with the locking portions 26D, 28D, 30D of the panel mounting holes 26, 28, 30. For this reason, the mounting direction of the identification panels 32, 34, 36 to the panel mounting holes 26, 28, 30 of the support panel 14 (the direction of arrow B in FIG. 14) is the panel mounting of the vulcanizing mold 10 of the support panel 14. The direction is opposite to the direction of attachment to the recess 16 (the direction of arrow A in FIG. 14), and the identification panels 32, 34, 36 do not pass through the panel attachment holes 26, 28, 30 of the support panel 14. ing. In the present embodiment, the same operations and effects as those in the first embodiment can be obtained.

[Other Embodiments]
Although the present invention has been described in detail with respect to specific embodiments, the present invention is not limited to such embodiments, and various other embodiments are possible within the scope of the present invention. It will be apparent to those skilled in the art. For example, as shown in FIGS. 15 and 16, the panel mounting hole 26 formed in the support panel 14 may be configured as one. The support panel 14 may be attached to the panel attachment recess 16 by attaching only one end 14B in the longitudinal direction with a fastening member 24 such as a bolt, or by using a magnet other than the fastening member 24 such as a bolt. You may attach with another attachment member.

  Although not shown in the drawings, the vulcanization mold according to the first aspect of the invention is not limited to the vulcanization mold 10 for pneumatic tires, but is also used for vulcanization molds for solid tires other than tires. Other vulcanization molds such as vulcanization molds are also included.

  Although not shown, in the vulcanization mold of the invention according to claim 1, two or more panel mounting recesses 16 are formed in the tire molding portion 12 of one vulcanization mold 10, and these A configuration in which the support panel 14 is attached to each of the panel mounting recesses 16 is also included.

  The invention described in claim 2 includes other configurations such as the fourth embodiment shown in FIG. 4 in addition to the first embodiment.

  Although not shown in the drawings, the invention described in claims 1 to 3 includes an outer peripheral surface of the panel mounting recess 16 of the vulcanizing mold 10 and an outer peripheral surface of the support panel 14 in contact with the outer peripheral surface. A configuration in which the cross-sectional shape is not inclined (in a straight line) toward the mounting direction of the support panel 14 to the panel mounting recess 16 of the vulcanizing mold 10 (direction of arrow A in FIG. 2) is also included.

10 Vulcanizing mold (vulcanizing mold)
DESCRIPTION OF SYMBOLS 12 Tire molding part of vulcanization mold 14 Support panel 16 Panel attachment recessed part of vulcanization mold 26 Panel attachment hole of support panel 26A Hole wall surface of panel attachment hole 26B Insertion side opening part of panel attachment hole 26C Panel attachment hole 26D Panel mounting hole locking portion 28 Support panel panel mounting hole 28A Panel mounting hole wall surface 28B Panel mounting hole insertion side opening 28C Panel mounting hole anti-insertion side opening 28D Panel mounting Hole mounting portion 30 Panel mounting hole of support panel 30A Hole surface of panel mounting hole 30B Panel mounting hole insertion side opening 30C Panel mounting hole non-insertion side opening 30D Panel mounting hole locking portion 32 Identification panel 34 Identification panel 36 Identification panel 40 Identification panel identification mark 42 Identification panel

Claims (4)

A tire molding portion in which a panel mounting recess is formed;
A support panel that is detachably attached to the panel mounting recess of the tire molding portion, and has a panel mounting hole formed thereon,
An identification panel that is detachably attached to the panel mounting hole of the support panel, and that forms an identification mark on the surface of the rubber to be molded;
A mold for vulcanization.   The mounting direction of the identification panel to the panel mounting hole of the support panel is opposite to the mounting direction of the support panel to the panel mounting recess of the tire molding portion, and the identification panel is the support The vulcanization mold according to claim 1, wherein the vulcanization mold does not penetrate the panel mounting hole of the panel.   The cross-sectional shape of the hole wall surface of the panel mounting hole of the support panel and at least a part of the outer peripheral surface of the identification panel in contact with the hole wall surface is attached to the panel mounting recess of the tire molding portion of the support panel. The vulcanization mold according to claim 1, wherein the mold is inclined in a direction that becomes wider toward the direction.   The cross-sectional shape of the side wall surface of the panel mounting recess of the tire molding portion and at least a part of the outer peripheral surface of the support panel that contacts the side wall surface is such that the cross section of the tire molding portion of the support panel extends to the panel mounting recess. The mold for vulcanization | cure of any one of Claims 1-3 which inclines in the direction which becomes narrow toward an attachment direction.

Images