JP5749936B2 - Tire component joining apparatus - Google Patents

Tire component joining apparatus Download PDF

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Publication number
JP5749936B2
JP5749936B2 JP2011008189A JP2011008189A JP5749936B2 JP 5749936 B2 JP5749936 B2 JP 5749936B2 JP 2011008189 A JP2011008189 A JP 2011008189A JP 2011008189 A JP2011008189 A JP 2011008189A JP 5749936 B2 JP5749936 B2 JP 5749936B2
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JP
Japan
Prior art keywords
roller
tire
molding drum
winding
joining
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Fee Related
Application number
JP2011008189A
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Japanese (ja)
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JP2012148453A (en
Inventor
健吾 福田
健吾 福田
中村　真人
真人 中村
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Bridgestone Corp
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Bridgestone Corp
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Priority to JP2011008189A priority Critical patent/JP5749936B2/en
Publication of JP2012148453A publication Critical patent/JP2012148453A/en
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Publication of JP5749936B2 publication Critical patent/JP5749936B2/en
Expired - Fee Related legal-status Critical Current
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/56—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using mechanical means or mechanical connections, e.g. form-fits
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7841—Holding or clamping means for handling purposes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7855—Provisory fixing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/114—Single butt joints
    • B29C66/1142—Single butt to butt joints
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/345—Progressively making the joint, e.g. starting from the middle
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/43—Joining a relatively small portion of the surface of said articles
    • B29C66/432—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms
    • B29C66/4322—Joining a relatively small portion of the surface of said articles for making tubular articles or closed loops, e.g. by joining several sheets ; for making hollow articles or hollow preforms by joining a single sheet to itself
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/49—Internally supporting the, e.g. tubular, article during joining
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/721—Fibre-reinforced materials
    • B29C66/7214—Fibre-reinforced materials characterised by the length of the fibres
    • B29C66/72141—Fibres of continuous length
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81411—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat
    • B29C66/81421—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave
    • B29C66/81423—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined characterised by its cross-section, e.g. transversal or longitudinal, being non-flat being convex or concave being concave
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8141—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined
    • B29C66/81433—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned
    • B29C66/81435—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the surface geometry of the part of the pressing elements, e.g. welding jaws or clamps, coming into contact with the parts to be joined being toothed, i.e. comprising several teeth or pins, or being patterned comprising several parallel ridges, e.g. for crimping
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81465—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed behind the other in a single row in the feed direction
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/81—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps
    • B29C66/814—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/8145—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps
    • B29C66/81463—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint
    • B29C66/81469—General aspects of the pressing elements, i.e. the elements applying pressure on the parts to be joined in the area to be joined, e.g. the welding jaws or clamps characterised by the design of the pressing elements, e.g. of the welding jaws or clamps characterised by the constructional aspects of the pressing elements, e.g. of the welding jaws or clamps comprising a plurality of single pressing elements, e.g. a plurality of sonotrodes, or comprising a plurality of single counter-pressing elements, e.g. a plurality of anvils, said plurality of said single elements being suitable for making a single joint one placed next to the other in a single line transverse to the feed direction, e.g. shoulder to shoulder sonotrodes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/836—Moving relative to and tangentially to the parts to be joined, e.g. transversely to the displacement of the parts to be joined, e.g. using a X-Y table
    • B29C66/8362—Rollers, cylinders or drums moving relative to and tangentially to the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/42—Endless textile bands without bead-rings
    • B29D2030/421—General aspects of the joining methods and devices for creating the bands
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29D—PRODUCING PARTICULAR ARTICLES FROM PLASTICS OR FROM SUBSTANCES IN A PLASTIC STATE
    • B29D30/00—Producing pneumatic or solid tyres or parts thereof
    • B29D30/06—Pneumatic tyres or parts thereof (e.g. produced by casting, moulding, compression moulding, injection moulding, centrifugal casting)
    • B29D30/38—Textile inserts, e.g. cord or canvas layers, for tyres; Treatment of inserts prior to building the tyre
    • B29D30/42—Endless textile bands without bead-rings
    • B29D2030/421—General aspects of the joining methods and devices for creating the bands
    • B29D2030/422—Butt joining

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Tyre Moulding (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Description

本発明は、成型ドラムに巻き回したタイヤ構成部材の巻き始端と巻き終端のそれぞれの端面を相互に突き合わせて、突き合わせ端面の外周側で、一方の端部の外表面部分と他方の端部の外表面部分とを波状に交互に入り込ませて接合するにあたり、突き合わせ端面の内周側も強固に接合させることが可能な、タイヤ構成部材の接合装置に関するものである。   In the present invention, the respective end surfaces of the winding start end and the winding end of the tire constituent member wound around the molding drum are butted against each other, and the outer surface portion of one end portion and the other end portion are arranged on the outer peripheral side of the butting end surface. The present invention relates to a tire constituent member joining apparatus capable of firmly joining the inner peripheral side of the butt end face when joining the outer surface portion alternately in a wave shape.

タイヤを成型するに当っては、タイヤ構成部材、例えば、複数本の引き揃えコードを未加硫ゴムで被覆してなるシート状のカーカスプライ素材を、筒状成型ドラムの周面に巻き回し、その巻き始端と巻き終端を接合して、円筒状のカーカスバンドとすることが行われている。この場合の両端部の代表的な接合方法としては、巻き始端の上に巻き終端を重ね合わせて接合する方法と、両端部の端面を突き合わせ接合する方法とが知られている。ところで、接合部に段差ができず高いユニフォミティが得られる点では、端面を突き合わせ接合する方法が有利であるが、単に端面同士を付き合わせる接合では、接合部の全域に亘って均一に接合させることが難しく、また接合面積も小さい為に、十分な接合強度を得ることは困難であった。このような中、突き合わせ接合の接合強度を向上させるものとして、タイヤ構成部材の突き合わせた端面の外周側で、一方の端部の外表面部分と他方の端部の外表面部分とを波状に交互に入り込ませる接合が検討されており、このような接合に用いられる装置としては、例えば特許文献１に記載されているようなジョイントジッパーを採用した接合装置が知られている。   When molding a tire, a tire component member, for example, a sheet-like carcass ply material formed by coating a plurality of alignment cords with unvulcanized rubber, is wound around the circumferential surface of a cylindrical molding drum, The winding start end and the winding end are joined to form a cylindrical carcass band. As typical joining methods at both ends in this case, there are known a method in which the winding end is overlapped on the winding start end and joining, and a method in which the end surfaces of both ends are butted and joined. By the way, the method of butting and joining the end faces is advantageous in that a step can not be stepped and a high uniformity can be obtained. However, in the joining where the end faces are simply joined together, the joining parts are uniformly joined over the entire area. In addition, since the bonding area is small, it is difficult to obtain sufficient bonding strength. Under these circumstances, the outer surface portion of one end portion and the outer surface portion of the other end portion are alternately arranged in a wavy manner on the outer peripheral side of the end surfaces where the tire constituent members are abutted to improve the joining strength of the butt joint. Joining to be inserted is studied, and as a device used for such joining, for example, a joining device employing a joint zipper as described in Patent Document 1 is known.

特開昭５６−１９７４２号公報JP 56-19742 A

ところで上記のような装置を用いた接合では、突き合わせ端面の外周側では、両端部の外表面部分が波状に入り込んでいる為に、ある程度の接合強度が得られるものの、成型ドラムと接する内周側では、端面同士が単に付き当てられた状態で接合しており、十分に満足できる接合強度が得られるには至っておらず、未だ改善の余地が残されていた。このため、突き合わせ端面の内周側も強固に接合する方法として、タイヤ構成部材の内周側もジョイントジッパーで接合することが検討されてきたが、例えばカーカスプライ素材の内周側接合を行う場合には、一般にこのカーカスプライ素材のさらに内周側に、インナーライナー素材が巻き回されているため、このインナーライナー素材とカーカスプライ素材の層間に内周側接合用のジョイントジッパーを通過させる必要があり、これによって、インナーライナー素材にしわが発生することがあった。また、インナーライナー素材を省いた状態で、カーカスプライ素材を成型ドラムに巻き回して内周側接合を行い、別の成型ドラムで円筒状にしたインナーライナーを、この接合済みのカーカスプライ素材に組み込む方法も検討されてきたが、これによれば、成型ドラムが複数必要となる為に製造装置が大型化し、また生産性も悪くなることから、実現は困難であった。   By the way, in the joining using the apparatus as described above, on the outer peripheral side of the butt end surface, the outer surface part of both end portions is wavy, so that a certain degree of joining strength can be obtained, but the inner peripheral side in contact with the molding drum In this case, the end faces are joined in a state where they are simply applied to each other, so that a sufficiently satisfactory joining strength has not been obtained, and there is still room for improvement. For this reason, as a method of firmly joining the inner peripheral side of the butt end surface, it has been studied that the inner peripheral side of the tire constituent member is also joined with a joint zipper. In general, since the inner liner material is wound further on the inner peripheral side of the carcass ply material, it is necessary to pass a joint zipper for inner peripheral side bonding between the inner liner material and the carcass ply material. There was a case where wrinkles were generated in the inner liner material. In addition, with the inner liner material omitted, the carcass ply material is wound around the molding drum and joined to the inner periphery, and the inner liner made into a cylindrical shape by another molding drum is incorporated into this joined carcass ply material. A method has also been studied, but according to this method, since a plurality of molding drums are required, the manufacturing apparatus becomes large and the productivity is deteriorated, so that realization is difficult.

本発明の課題は、成型ドラムに巻き回したタイヤ構成部材の巻き始端と巻き終端のそれぞれの端面を相互に突き合わせて、突き合わせ端面の外周側で、一方の端部の外表面部分と他方の端部の外表面部分とを波状に交互に入り込ませて接合するにあたり、タイヤ構成部材の内周側も強固に接合させることが可能となる、タイヤ構成部材の接合装置を提供することにある。   An object of the present invention is to abut each end surface of the winding start end and end winding end of a tire constituent member wound around a molding drum, and on the outer peripheral side of the abutting end surface, the outer surface portion of one end and the other end An object of the present invention is to provide a tire constituent member joining apparatus capable of firmly joining the inner peripheral side of a tire constituent member when joining the outer surface portion of the tire portion alternately in a wave shape.

本発明は、成型ドラムの軸線方向に前進変位されて、成型ドラムの周面に巻き回したタイヤ構成部材の巻き始端と巻き終端とのそれぞれの端面を、成型ドラムの軸線に沿わせて相互に突き合わせるとともに、突き合わせ端面の外周側で、一方の端部の外表面部分と他方の端部の外表面部分とを波状に交互に入り込ませて接合するタイヤ構成部材の接合装置であって、それぞれの軸線を進行方向に対して鈍角に傾斜させた姿勢で配設され、互いの凹部と凸部をかみ合わせて同期して回動する、少なくとも一対のジョイントジッパーと、前記前進変位方向に対し、これらのジョイントジッパーよりも前方側に、それぞれの軸線を進行方向に対して鈍角に傾斜させた姿勢で、前記巻き始端と巻き終端とのそれぞれに接触する位置に回動自在に取り付けられる、少なくとも一対の円筒状浮き上げローラとを備えてなり、
前記ジョイントジッパーと浮き上げローラとの間に位置し、前記巻き始端と巻き終端との両者に跨がって回動自在に配設されて、タイヤ構成部材を成型ドラム側へ押圧する押し潰しローラと、前記浮き上げローラの前方側において、前記巻き始端と巻き終端との両者に跨がって回動自在に配設される押さえローラとを備えるものである。 In the present invention, the end surfaces of the winding start end and the winding end of the tire constituent member, which are forwardly displaced in the axial direction of the molding drum and wound around the peripheral surface of the molding drum, are mutually aligned along the axis of the molding drum. A joining device for tire constituent members that joins the outer surface portion of one end portion and the outer surface portion of the other end portion in an undulating manner on the outer peripheral side of the butt end face, together with each other, At least a pair of joint zippers, which are arranged in an attitude inclined at an obtuse angle with respect to the traveling direction, and which rotate in synchronization with each other's concave and convex portions, At the front side of the joint zipper, each axis is inclined at an obtuse angle with respect to the direction of travel, and is pivotally attached to the position where it comes into contact with the winding start end and winding end. Is, Ri Na and at least a pair of cylindrical float up roller,
A crushing roller that is positioned between the joint zipper and the lifting roller and is rotatably disposed across both the winding start end and the winding end, and presses the tire constituent member toward the molding drum. If, at the front side of the float up roller, a shall and a pressing roller which is both to rotatably provided to bridge between the winding beginning and the winding end.

かかる装置において好ましくは、押し潰しローラは、円筒形状である。 In such an apparatus, the crushing roller is preferably cylindrical .

また好ましくは、押し潰しローラに、加熱手段を設ける。   Preferably, the crushing roller is provided with heating means.

そしてまた好ましくは、浮き上げローラと、ジョイントジッパーと、押し潰しローラとのそれぞれを、成型ドラムの軸線方向に前進変位する本体部に一体に設ける。
Further preferably, each of the lifting roller, the joint zipper, and the crushing roller is integrally provided in the main body portion that moves forward in the axial direction of the molding drum .

このタイヤ構成部材の接合装置では、タイヤ構成部材の突き合わせ端面の外周側で、両端部の外表面部分を波状に入り込ませて接合させる、少なくとも一対のジョイントジッパーを備えるとともに、接合装置の前進変位方向に対してジョイントジッパーよりも前方側に、少なくとも一対の円筒状浮き上げローラを設けたので、ジョイントジッパーで接合する前に、これらの浮き上げローラによって、タイヤ構成部材の両端部を、互いに近づく向きに引き寄せて山状に浮き上がらせるとともに、それぞれの端部の裏面部分を互いに当接させて接合させることができる。従ってこの接合装置によれば、突き合わせ端面の外周側では両端部の外表面部分を波状に入り込ませる一方、内周側では両端部の裏面部分を強く押し当てた状態での接合が可能となるので、全体として十分な接合強度を得ることができる。   The tire component joining apparatus includes at least a pair of joint zippers that join the outer surface portions of both end portions in an undulating manner on the outer peripheral side of the abutting end surfaces of the tire component, and the forward displacement direction of the joining device Since at least a pair of cylindrical lifting rollers are provided on the front side of the joint zipper, both ends of the tire constituent members are brought closer to each other by the lifting rollers before being joined by the joint zipper. Can be brought into contact with each other and brought into contact with the back surface portions of the respective end portions. Therefore, according to this joining apparatus, it is possible to join the outer surface portion of both end portions into the wavy shape on the outer peripheral side of the butt end surface, while it is possible to join in a state where the back surface portions of both end portions are strongly pressed on the inner peripheral side. As a whole, a sufficient bonding strength can be obtained.

この接合装置で、ジョイントジッパーと浮き上げローラとの間に、タイヤ構成部材を成型ドラム側へ押圧する押し潰しローラを設けた場合は、浮き上げローラによって山状に浮き上げられて、両端部の裏面部分を当接接合されタイヤ構成部材を、押し潰しローラで成型ドラムに向けて押し付けることで、裏面部分を強固に圧着させることができる。したがってこの接合装置によれば、タイヤ構成部材の両端部の、より高い接合強度を得ることが可能となるとともに、ジョイントジッパーで接合するにあたっての、タイヤ構成部材の浮き上がりが除去されるので、外周側もより確実に接合することができる。   In this joining apparatus, when a crushing roller is provided between the joint zipper and the lifting roller to press the tire constituent member to the molding drum side, it is lifted up in a mountain shape by the lifting roller. The back surface portion can be firmly pressure-bonded by abutting and joining the back surface portion and pressing the tire constituent member against the molding drum with a crushing roller. Therefore, according to this joining apparatus, it is possible to obtain higher joining strength at both ends of the tire constituent member, and the lifting of the tire constituent member when joining with the joint zipper is removed. Can be more reliably joined.

また押し潰しローラに、加熱手段を設けた場合には、この押し潰しローラによって押し潰されたタイヤ構成部材の裏面部分を、より確実に圧着させることができる。さらに、加熱によってタイヤ構成部材の流動性が高まるので、ジョイントジッパーによる接合においても、外表面部分の入り込みを所期したとおりに十分に行うことができる。したがってこの接合装置によれば、接合強度をより十分に高めることが可能となり、また接合状態のばらつきを抑えて安定した接合を実現することができる。   Further, when the crushing roller is provided with heating means, the back surface portion of the tire constituent member crushed by the crushing roller can be more reliably pressure-bonded. Furthermore, since the fluidity of the tire constituent member is increased by heating, the joining of the joint zipper can be performed sufficiently as the entrance of the outer surface portion is expected. Therefore, according to this bonding apparatus, it is possible to sufficiently increase the bonding strength, and it is possible to realize stable bonding while suppressing variations in the bonding state.

さらに、浮き上げローラと、ジョイントジッパーと、押し潰しローラとのそれぞれを、本体部に一体に設けた場合には、突き合わせ端面の、外周側と内周側の接合が、一つの工程で実現できる。したがってこの接合装置によれば、従来のジョイントジッパーのみによる接合と変わらないサイクルタイムで接合できるので、生産性を損なうことがない。   Furthermore, when each of the lifting roller, the joint zipper, and the crushing roller is provided integrally with the main body, the outer peripheral side and the inner peripheral side of the butt end surface can be realized in one process. . Therefore, according to this joining apparatus, since it can join by the cycle time which is the same as the joining only by the conventional joint zipper, productivity is not impaired.

本発明に従う接合装置の実施形態を、成型ドラム、及び成型ドラムの周面に巻き回したタイヤ構成部材とともに示す側面図である。[BRIEF DESCRIPTION OF THE DRAWINGS] It is a side view which shows embodiment of the joining apparatus according to this invention with the tire structural member wound around the surrounding surface of the forming drum and the forming drum. 図１に示す接合装置を構成する、ジョイントジッパーの斜視図である。It is a perspective view of the joint zipper which comprises the joining apparatus shown in FIG. 図２に示すジョイントジッパーのＡ−Ａ線に沿う断面図である。It is sectional drawing which follows the AA line of the joint zipper shown in FIG. 図１に示す接合装置の平面図である。It is a top view of the joining apparatus shown in FIG. 図１に示す接合装置を構成する、浮き上げローラの平面図である。It is a top view of the raising roller which comprises the joining apparatus shown in FIG. 図５に示す浮き上げローラの作用を示す、正面図である。It is a front view which shows the effect | action of the lifting roller shown in FIG. 実施例で測定した溝部を誇張して例示する、タイヤ構成部材の端部接合部の断面図である。It is sectional drawing of the edge part junction part of a tire structural member which exaggerates and illustrates the groove part measured in the Example.

以下、図面を参照して、本発明の実施の形態を説明する。   Embodiments of the present invention will be described below with reference to the drawings.

図１に示すところにおいて、１は、成型ドラムの一部である。この成型ドラム１は円筒状であり、軸線１ａを中心に回転駆動される。   In FIG. 1, 1 is a part of the molding drum. The molding drum 1 has a cylindrical shape and is driven to rotate about an axis 1a.

また２は、成型ドラム１の周面上に、直接的もしくは間接的に巻き回されて貼着されたタイヤ構成部材を示す。このタイヤ構成部材２は、例えば製品タイヤの空気漏れを防止する機能を有する、気体透過性の低いゴムからなるインナーライナー素材や、複数本の引き揃えコードを未加硫ゴムで被覆してなるカーカスプライ素材とすることができ、図に示すところでは、通常のタイヤ成型工程におけるように、インナーライナー素材を成型ドラム１の周面に巻き回して貼着させた後、そのインナーライナー素材の周面上にカーカスプライ素材を巻き回している。ここで、カーカスプライ素材の長さは、成型ドラム１の周長の略１周分としている。   Reference numeral 2 denotes a tire constituent member that is wound directly or indirectly on the peripheral surface of the molding drum 1 and attached. The tire constituent member 2 includes, for example, an inner liner material made of rubber with low gas permeability, which has a function of preventing air leakage of a product tire, and a carcass formed by coating a plurality of alignment cords with unvulcanized rubber. As shown in the figure, the inner liner material is wound around and adhered to the peripheral surface of the molding drum 1 and then the peripheral surface of the inner liner material. The carcass ply material is wound on top. Here, the length of the carcass ply material is approximately one round of the circumference of the molding drum 1.

そして３は、接合装置の本体部を示す。この本体部３は、図示は省略するが、例えばリニアガイドのような直線状の軌道に取り付けられて、ねじ機構とモータとを組み合わせた駆動手段によって、成型ドラム１の軸線１ａの方向に前進変位できるようになっている。また、本体部３は、図示しないシリンダー等の昇降手段によって、成型ドラム１の半径方向に昇降変位可能となっており、タイヤ構成部材の端部の接合時には、成型ドラム１に向けて下降変位させて、接合装置をタイヤ構成部材２に当接させることが可能である。一方、タイヤ構成部材２を成型ドラム１の周りに巻き回す時には、接合装置を成型ドラム１から上昇変位させることができるので、作業性を損なうことがない。   And 3 shows the main-body part of a joining apparatus. Although not shown, the main body 3 is attached to a linear track such as a linear guide, and is moved forwardly in the direction of the axis 1a of the molding drum 1 by a driving means combining a screw mechanism and a motor. It can be done. The main body 3 can be moved up and down in the radial direction of the molding drum 1 by lifting means such as a cylinder (not shown), and is lowered toward the molding drum 1 when the ends of the tire constituent members are joined. Thus, the joining device can be brought into contact with the tire constituent member 2. On the other hand, when the tire constituent member 2 is wound around the molding drum 1, the joining device can be displaced upward from the molding drum 1, so that the workability is not impaired.

４は、本体部３の前進方向に対し、後方側部分に配設したジョイントジッパーである。図２、３に詳細に示すように、ジョイントジッパー４は円筒形状をなし、その一端側には、複数の凹部４ａと凸部４ｂが円周方向に交互に設けられている。また外周面には、円周方向に沿って環状又は螺旋状に延びる凸条４ｃが形成されており、この凸条４ｃの、鋸歯状をなす断面形状は、その側面が、凹部４ａ及び凸部４ｂを設けた一端側で、軸線に直行する面をなし、他端側では、一端側から他端側に向けて根元が広がる向きに傾く傾斜面をなしている。そして図４に示すように、本体部３の中心軸線３ａに対して対称となるように配設した、少なくとも一対（図示の例では二対）のジョイントジッパー４を、それぞれの軸線を進行方向に対して鈍角に傾斜させた姿勢で、凹部４ａと凸部４ｂを相互に噛み合わせ、タイヤ構成部材２の巻き始端と巻き終端のそれぞれに接触させて、回動可能に取り付けている。   Reference numeral 4 denotes a joint zipper disposed in the rear side portion with respect to the forward direction of the main body 3. As shown in detail in FIGS. 2 and 3, the joint zipper 4 has a cylindrical shape, and a plurality of concave portions 4 a and convex portions 4 b are alternately provided in the circumferential direction on one end side thereof. Further, the outer circumferential surface is formed with a ridge 4c extending in a ring shape or a spiral shape along the circumferential direction, and the side surface of the ridge 4c has a sawtooth shape, the side surface of which is a concave portion 4a and a convex portion. One end side provided with 4b forms a surface perpendicular to the axis, and the other end side forms an inclined surface that inclines in a direction in which the roots spread from one end side toward the other end side. As shown in FIG. 4, at least a pair (two pairs in the illustrated example) of the joint zippers 4 disposed so as to be symmetric with respect to the central axis 3a of the main body 3 are arranged so that the respective axes are in the traveling direction. On the other hand, the concave portion 4a and the convex portion 4b are meshed with each other in a posture inclined at an obtuse angle, and are brought into contact with the winding start end and the winding end of the tire constituent member 2, respectively, and are attached rotatably.

一方、本体部３の進行方向に対して前方側の部分には、少なくとも一対の浮き上げローラ５を配設する。浮き上げローラ５は円筒形状であり、図１、４で示すようにこの浮き上げローラ５を、本体部３の中心軸線３ａに対して対称に、ここでは一対のものとして配設している。そしてこれらの浮き上げローラ５を、本体部３に、それぞれの軸線を進行方向に対して鈍角（図５に示す角度θ）に傾斜させた姿勢で、タイヤ構成部材２の巻き始端と巻き終端とのそれぞれに接触させて、回動自在に取り付けている。一対の浮き上げローラ５の対向する端面間には、所定のクリアランス（ここでは、図５に示す、浮き上げローラ５の中心間における距離Ｌを、このクリアランスとして定義する）が設けられている。また、浮き上げローラ５の外周面には、円周方向に沿って環状又は螺旋状の凸条５ａが形成されている。   On the other hand, at least a pair of lifting rollers 5 is disposed in a portion on the front side with respect to the traveling direction of the main body 3. The lifting roller 5 has a cylindrical shape, and as shown in FIGS. 1 and 4, the lifting roller 5 is disposed symmetrically with respect to the central axis 3 a of the main body 3, and here is a pair. Then, the lifting roller 5 is placed on the main body 3 in a posture in which each axis is inclined at an obtuse angle (angle θ shown in FIG. 5) with respect to the traveling direction, It is attached so that it can rotate freely in contact with each of these. A predetermined clearance (here, the distance L between the centers of the lifting rollers 5 shown in FIG. 5 is defined as this clearance) is provided between the opposing end surfaces of the pair of lifting rollers 5. Further, on the outer peripheral surface of the lifting roller 5, an annular or spiral ridge 5a is formed along the circumferential direction.

そしてさらに図に示すところでは、ジョイントジッパー４と浮き上げローラ５との間に、押し潰しローラ６を配設する。円筒形状をなすこの押し潰しローラ６は、図１、４に示すように、ジョイントジッパー４と浮き上げローラ５との間で、タイヤ構成部材２の巻き始端と巻き終端との両者に跨がって配置されて、本体部３に回動自在に取り付けられている。   Further, in the drawing, a crushing roller 6 is disposed between the joint zipper 4 and the lifting roller 5. As shown in FIGS. 1 and 4, this crushing roller 6 having a cylindrical shape spans both the winding start end and the winding end end of the tire constituent member 2 between the joint zipper 4 and the lifting roller 5. And is rotatably attached to the main body 3.

そしてまた、本体部３の前進方向の最先端部分には、押さえローラ７を配設する。この押さえローラ７は、図４に示すように、軸線方向の中央部で、周面が軸線側に曲面状に凹となる形状を有しており、接合装置の前進変位方向に対して浮き上げローラ５よりも前方側で、本体部３に回動自在に取り付けられている。   In addition, a pressing roller 7 is disposed at the most distal portion of the main body 3 in the forward direction. As shown in FIG. 4, the pressing roller 7 has a shape in which the circumferential surface is concave in a curved shape on the axial line side at the center in the axial direction, and is lifted with respect to the forward displacement direction of the joining device. A front side of the roller 5 is rotatably attached to the main body 3.

ここで、ジョイントジッパー４、浮き上げローラ５、押し潰しローラ６、押さえローラ７は、本体部３の昇降手段の作用により、タイヤ構成部材２に押し当てることが可能であるが、例えば、ばね等をからなる付勢手段をそれぞれ個別に設けて、タイヤ構成部材２に、それらの役割に応じた付勢力で押し当てるようにしてもよい。   Here, the joint zipper 4, the lifting roller 5, the crushing roller 6, and the pressing roller 7 can be pressed against the tire component 2 by the action of the lifting / lowering means of the main body 3, but for example, a spring or the like It is also possible to individually provide the urging means comprising the above and press against the tire component 2 with the urging force according to their role.

上記のような構成となる接合装置を用いて、タイヤ構成部材２の巻き始端と巻き終端との接合を行うにあたっては、まず、成型ドラム１の周面にタイヤ構成部材２の巻き回しを行う。この時、接合装置は成型ドラム１から上昇変位している。タイヤ構成部材２として、例えばインナーライナー素材及びカーカスプライ素材を適用する場合は、まず成型ドラム１の周面にインナーライナー素材を巻き回し、このインナーライナー素材の周面上にカーカスプライ素材を巻き回して、カーカスプライ素材の巻き始端と巻き終端を突き合わす。   In joining the winding start end and the winding end of the tire constituent member 2 using the joining device having the above-described configuration, first, the tire constituent member 2 is wound around the peripheral surface of the molding drum 1. At this time, the joining device is displaced upward from the molding drum 1. For example, when applying an inner liner material and a carcass ply material as the tire constituent member 2, first, the inner liner material is wound around the circumferential surface of the molding drum 1, and the carcass ply material is wound around the circumferential surface of the inner liner material. Then, the winding start end and winding end of the carcass ply material are matched.

次に、タイヤ構成部材２の両端面と、接合装置との周方向位置あわせを行う。これには、接合装置（本体部３の中心軸線３ａ）が成型ドラム１の半径方向に下降変位する先に、タイヤ構成部材２の両端面が来るように、成型ドラム１を回転させる。この場合の成型ドラム１の回転量は、接合装置や成型ドラム１等の駆動を制御する制御装置等（図示せず）にあらかじめ設定されており、毎回決まった位置に回転させることができるので、接合装置とタイヤ構成部材２の両端面との相対位置がずれることがない。   Next, the circumferential direction alignment with the both end surfaces of the tire structural member 2 and a joining apparatus is performed. For this purpose, the molding drum 1 is rotated so that both end surfaces of the tire constituent member 2 come before the joining device (the central axis 3 a of the main body 3) is displaced downward in the radial direction of the molding drum 1. The rotation amount of the molding drum 1 in this case is preset in a control device (not shown) that controls the driving of the joining device, the molding drum 1 and the like, and can be rotated to a predetermined position every time. The relative positions of the joining device and the both end faces of the tire constituent member 2 are not shifted.

その後、接合装置を成型ドラム１に向けて下降変位させて、図１に示すように、ジョイントジッパー４、浮き上げローラ５、押し潰しローラ６、押さえローラ７のそれぞれをタイヤ構成部材２の巻き始端と巻き終端のそれぞれに接触させて、接合装置を軸線１ａ方向に前進変位させる。   Thereafter, the joining device is displaced downward toward the molding drum 1, and as shown in FIG. 1, the joint zipper 4, the lifting roller 5, the crushing roller 6, and the pressing roller 7 are respectively connected to the winding start ends of the tire constituent member 2. And the winding end are brought into contact with each other, and the joining device is displaced forward in the direction of the axis 1a.

接合装置が前進変位すると、タイヤ構成部材２は、押さえローラ７によって成型ドラム１に向けて押さえられ、この部分を浮き上げローラ５が通過する。浮き上げローラ５は、タイヤ構成部材２との摩擦によって回転するが、この浮き上げローラ５は前進変位方向に対して傾斜姿勢で配置されているので、図６に示すように、巻き始端と巻き終端には、互いに近づく向きのせん断力が作用する。この時、浮き上げローラ５の外周面には凸条５ａが形成されているので、タイヤ構成部材２は、浮き上げローラ５からずれることなく、互いが近づく向きに引き寄せられる。ここで浮き上げローラ５の対向する端面間には、所定のクリアランスが設けられているので、それらのローラは引き寄せられたタイヤ構成部材２を山状に浮き上がらせて、両端部の裏面部分を互いに当接させることができる。この時、一般的には形成される山の幅が狭く、高さが高いほど、裏面部分の強い当接には有利であるが、例えば浮き上げローラ５の傾斜角度θやクリアランスＬを適宜調整することで、裏面部分を強く当てつけることができる。   When the joining device moves forward, the tire constituent member 2 is pressed against the molding drum 1 by the pressing roller 7, and the lifting roller 5 passes through this portion. The lift roller 5 is rotated by friction with the tire constituent member 2. However, since the lift roller 5 is disposed in an inclined posture with respect to the forward displacement direction, as shown in FIG. A shearing force in a direction approaching each other acts on the terminal ends. At this time, since the protrusion 5 a is formed on the outer peripheral surface of the lifting roller 5, the tire constituent members 2 are pulled toward each other without deviating from the lifting roller 5. Here, since a predetermined clearance is provided between the opposing end surfaces of the lifting roller 5, these rollers lift the attracted tire component 2 in a mountain shape so that the back surface portions of both end portions are mutually connected. It can be made to contact. At this time, in general, the narrower the formed mountain and the higher the height, the more advantageous for strong contact of the back surface portion. For example, the inclination angle θ of the lifting roller 5 and the clearance L are appropriately adjusted. By doing so, the back portion can be strongly applied.

次に、この山状の部分を押し潰しローラ６が通過する。押し潰しローラ６は、山状に浮き上げられたタイヤ構成部材２を、成型ドラム１に向けて押し付けるので、互いに当接接合されたタイヤ構成部材２の裏面部分を、両端面とともにより十分に圧着させることができる。なお、押し潰しローラ６を省略した場合でも、タイヤ構成部材２の裏面部分を強く押し当てた状態で接合できるので、従来よりも高い接合強度を得ることが可能であるが、押し潰しローラ６を設けた場合は、一層確実に圧着できる点でより好ましい。   Next, this crest-like portion is crushed and the roller 6 passes. Since the crushing roller 6 presses the tire constituent member 2 lifted in a mountain shape toward the molding drum 1, the back surface portions of the tire constituent member 2 that are abutted and joined to each other are more fully crimped together with both end faces. Can be made. Even when the crushing roller 6 is omitted, since the joining can be performed in a state where the back surface portion of the tire constituent member 2 is strongly pressed, it is possible to obtain a higher joining strength than the conventional one. When it provides, it is more preferable at the point which can crimp more reliably.

この圧着の後、さらにジョイントジッパー４が通過する。ジョイントジッパー４は、タイヤ構成部材２との摩擦によって回転し、タイヤ構成部材２の突き合わせ端面の外周側では、一方の端部の外表面部分が、他方の端部の外表面部分に入り込み、それが交互に繰り返されて波状に接合されることになる。これにより、突き合わせ端面の外周側では、両端部の外表面部分を波状に入り込ませる一方、内周側では、両端部の裏面部分を強く押し当てた状態で接合できるので、高い接合強度を得ることが可能となる。   After this crimping, the joint zipper 4 further passes. The joint zipper 4 is rotated by friction with the tire component 2, and on the outer peripheral side of the butt end surface of the tire component 2, the outer surface portion of one end enters the outer surface portion of the other end, Are repeated alternately and joined in a wave shape. Thereby, on the outer peripheral side of the butt end surface, the outer surface portions of both end portions are waved in, while on the inner peripheral side, the back surface portions of both end portions can be strongly pressed so that high bonding strength can be obtained. Is possible.

押し潰しローラ６に、加熱手段を設けた場合には、加熱によってタイヤ構成部材２の流動性が高まるので、突き合わせ端面の裏面部分の圧着をより確実に行えるようになる。また外周側においても、流動性の高まりによって、ジョイントジッパー４による外表面部分の入り込みを、所期したとおりに十分に行うことができる。さらに押し潰しローラ６の周面に、ローレット加工を施している場合は、表面の凹凸によってタイヤ構成部材２とのずれがおこらないので、さらに確実に圧着できて好ましい。   When the crushing roller 6 is provided with a heating means, the fluidity of the tire constituent member 2 is increased by heating, so that the back surface portion of the butt end surface can be more reliably crimped. Further, on the outer peripheral side, due to the increase in fluidity, the outer surface portion can be sufficiently penetrated by the joint zipper 4 as expected. Furthermore, when the peripheral surface of the crushing roller 6 is subjected to knurling, it is preferable that the surface of the crushing roller 6 is not displaced from the tire constituent member 2 due to the unevenness of the surface, so that the crimping can be more reliably performed.

なお、例えば従来のジョイントジッパーを備える装置に、浮き上げローラ５と押し潰しローラ６を備える接合装置を別に取り付けて、上記のような順で接合させてもよいが、これら３種類のローラを、上記のように本体部３に一体に設けた場合には、突き合わせ端面の外周側と内周側の接合が一つの工程で実現できるので、より好ましい。   In addition, for example, a conventional apparatus provided with a joint zipper may be separately attached with a joining apparatus provided with the lifting roller 5 and the crushing roller 6 and joined in the order as described above. When provided integrally with the main body 3 as described above, the joining of the outer peripheral side and the inner peripheral side of the butt end surface can be realized in one step, which is more preferable.

浮き上げローラの傾斜角度θが１０５°で、クリアランスＬが１０ｍｍであり、押し潰しローラの条件を、表１に示す関係に設定した接合装置を用いて、タイヤ構成部材の接合強度について調査を行った。具体的には、タイヤ構成部材としてカーカスプライ素材を選択し、図７に誇張して示す、接合したカーカスプライ素材の裏面部分の溝深さを、２次元レーザー変位計で、各サンプルについて測定して平均値を求めた。その結果を表１に併せて示す。なお、溝の深さが浅いほど、接合強度が大きいことを示している。

Figure 0005749936
Using a joining device in which the inclination angle θ of the lifting roller is 105 °, the clearance L is 10 mm, and the conditions of the crushing roller are set to the relationship shown in Table 1, the joining strength of the tire constituent members is investigated. It was. Specifically, a carcass ply material is selected as a tire constituent member, and the groove depth of the back surface portion of the joined carcass ply material, which is exaggerated in FIG. 7, is measured for each sample with a two-dimensional laser displacement meter. The average value was obtained. The results are also shown in Table 1. In addition, it has shown that junction strength is so large that the depth of a groove | channel is shallow.
Figure 0005749936

その結果、浮き上げローラ及び押し潰しローラを使用せず、ジョイントジッパー及び押さえローラのみからなる従来の接合装置を用いて接合したカーカスプライ素材（比較例）に対して、加熱可能な押し潰しローラを備える本発明に従う接合装置で接合したカーカスプライ素材（適合例）は、溝の深さが浅くできることが確認された。   As a result, a heatable crushing roller is used for a carcass ply material (comparative example) joined using a conventional joining apparatus consisting only of a joint zipper and a pressing roller without using a lift roller and a crushing roller. It was confirmed that the carcass ply material (conforming example) joined by the joining device according to the present invention provided can have a shallow groove.

１ 成型ドラム
２ タイヤ構成部材
３ 本体部
４ ジョイントジッパー
４ａ 凹部
４ｂ 凸部
４ｃ 凸条
５ 浮き上げローラ
５ａ 凸条
６ 押し潰しローラ
７ 押さえローラ DESCRIPTION OF SYMBOLS 1 Molding drum 2 Tire component 3 Main body part 4 Joint zipper 4a Concave part 4b Convex part 4c Convex strip 5 Lifting roller 5a Convex strip 6 Crushing roller 7 Pressing roller

Claims (4)

成型ドラムの軸線方向に前進変位されて、成型ドラムの周面に巻き回したタイヤ構成部材の巻き始端と巻き終端とのそれぞれの端面を、成型ドラムの軸線に沿わせて相互に突き合わせるとともに、突き合わせ端面の外周側で、一方の端部の外表面部分と他方の端部の外表面部分とを波状に交互に入り込ませて接合するタイヤ構成部材の接合装置であって、
それぞれの軸線を進行方向に対して鈍角に傾斜させた姿勢で配設され、互いの凹部と凸部をかみ合わせて同期して回動する、少なくとも一対のジョイントジッパーと、
前記前進変位方向に対し、ジョイントジッパーよりも前方側に、それぞれの軸線を進行方向に対して鈍角に傾斜させた姿勢で、前記巻き始端と巻き終端とのそれぞれに接触する位置に回動自在に取り付けられる、少なくとも一対の円筒状浮き上げローラとを備えてなり、
前記ジョイントジッパーと浮き上げローラとの間に位置し、前記巻き始端と巻き終端との両者に跨がって回動自在に配設されて、タイヤ構成部材を成型ドラム側へ押圧する押し潰しローラと、前記浮き上げローラの前方側において、前記巻き始端と巻き終端との両者に跨がって回動自在に配設される押さえローラとを備えるタイヤ構成部材の接合装置。 While advancing displacement in the axial direction of the molding drum, each end face of the winding start end and winding end of the tire component wound around the peripheral surface of the molding drum is abutted against each other along the axis of the molding drum, On the outer peripheral side of the butt end surface, a joining device for a tire constituent member that joins the outer surface portion of one end portion and the outer surface portion of the other end portion alternately in a wave shape,
At least a pair of joint zippers that are arranged in a posture in which each axis is inclined at an obtuse angle with respect to the traveling direction, and that rotate in synchronization with each other by engaging the concave and convex portions of each other;
With respect to the forward displacement direction, it is rotatable forward to a position in contact with each of the winding start end and the winding end in a posture in which each axis is inclined at an obtuse angle with respect to the traveling direction in front of the joint zipper. attached, Ri Na and at least a pair of cylindrical float up roller,
A crushing roller that is positioned between the joint zipper and the lifting roller and is rotatably disposed across both the winding start end and the winding end, and presses the tire constituent member toward the molding drum. When the at the front side of the lifting-up roller, the bonding apparatus of the winding starting end and the tire components Ru and a pressing roller which is rotatably arranged straddling both the winding end. 前記押し潰しローラは、円筒形状である請求項１記載のタイヤ構成部材の接合装置。 The tire crushing member joining apparatus according to claim 1 , wherein the crushing roller has a cylindrical shape . 前記押し潰しローラに、加熱手段を設けてなる請求項１又は２記載のタイヤ構成部材の接合装置。 The joining apparatus of the tire structural member of Claim 1 or 2 which provides a heating means in the said crushing roller. 前記浮き上げローラと、ジョイントジッパーと、押し潰しローラとのそれぞれを、前記成型ドラムの軸線方向に前進変位する本体部に一体に設けてなる請求項１〜３の何れかに記載のタイヤ構成部材の接合装置。 The tire constituent member according to any one of claims 1 to 3 , wherein each of the lifting roller, the joint zipper, and the crushing roller is integrally provided on a main body portion that moves forward in the axial direction of the molding drum. Welding equipment.
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JPS5619742A (en) * 1979-07-26 1981-02-24 Bridgestone Corp Joining device for sheetlike material
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