JPS59194829A - Manufacture of cast tire - Google Patents

Manufacture of cast tire

Info

Publication number
JPS59194829A
JPS59194829A JP58068980A JP6898083A JPS59194829A JP S59194829 A JPS59194829 A JP S59194829A JP 58068980 A JP58068980 A JP 58068980A JP 6898083 A JP6898083 A JP 6898083A JP S59194829 A JPS59194829 A JP S59194829A
Authority
JP
Japan
Prior art keywords
tire
semi
halves
extended pieces
tread
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.)
Granted
Application number
JP58068980A
Other languages
Japanese (ja)
Other versions
JPH0410415B2 (en
Inventor
Kunio Nishimura
邦夫 西村
Yoshihiko Matsumoto
良彦 松本
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Sumitomo Rubber Industries Ltd
Original Assignee
Sumitomo Rubber Industries Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Sumitomo Rubber Industries Ltd filed Critical Sumitomo Rubber Industries Ltd
Priority to JP58068980A priority Critical patent/JPS59194829A/en
Publication of JPS59194829A publication Critical patent/JPS59194829A/en
Publication of JPH0410415B2 publication Critical patent/JPH0410415B2/ja
Granted legal-status Critical Current

Links

Classifications

    • 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
    • B29C66/50—General aspects of joining tubular articles; General aspects of joining long products, i.e. bars or profiled elements; General aspects of joining single elements to tubular articles, hollow articles or bars; General aspects of joining several hollow-preforms to form hollow or tubular articles
    • B29C66/51—Joining tubular articles, profiled elements or bars; Joining single elements to tubular articles, hollow articles or bars; Joining several hollow-preforms to form hollow or tubular articles
    • B29C66/54—Joining several hollow-preforms, e.g. half-shells, to form hollow articles, e.g. for making balls, containers; Joining several hollow-preforms, e.g. half-cylinders, to form tubular articles
    • 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
    • B29C59/00—Surface shaping of articles, e.g. embossing; Apparatus therefor
    • B29C59/02—Surface shaping of articles, e.g. embossing; Apparatus therefor by mechanical means, e.g. pressing
    • 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
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/12—Joint cross-sections combining only two joint-segments; Tongue and groove joints; Tenon and mortise joints; Stepped joint cross-sections
    • B29C66/128—Stepped joint cross-sections
    • B29C66/1286—Stepped joint cross-sections comprising at least one bevelled joint-segment
    • B29C66/12861—Stepped joint cross-sections comprising at least one bevelled joint-segment comprising at least two bevelled joint-segments
    • B29C66/12862—Stepped joint cross-sections comprising at least one bevelled joint-segment comprising at least two bevelled joint-segments comprising at least three bevelled joint-segments
    • 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
    • B29C66/305—Decorative or coloured 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
    • B29C66/05—Particular design of joint configurations
    • B29C66/306—Applying a mark 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
    • B29C66/80—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
    • 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)
    • B29D30/08—Building tyres
    • 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
    • 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
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • 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)
    • B29D30/08—Building tyres
    • B29D2030/086—Building the tyre carcass by combining two or more sub-assemblies, e.g. two half-carcasses
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29L—INDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2030/00—Pneumatic or solid tyres or parts thereof

Landscapes

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

Abstract

PURPOSE:To easily obtain a cast tire having excellent bonding strength by easily taking it out of molds and also by simplifying the molds by a method in which two halves having extended pieces and a semi-ring form for a tire body are molded, and the extended pieces of the two halves are lapped with each other and integrally joined under pressures. CONSTITUTION:Extended pieces 4 and 5 of a round ring form are integrally and continuously projected from the facing sides of semi-ringed parts 2 and 3 or two halves formed by dividing a tire into the two parts along near the center line (a). The extended pieces 4 and 5 are lapped on each other to form the central ground-contact face of the tread of the tire. The halves are held on the mold 10, melted, and pressed at the center of the joint portions of the extended pieces 4 and 5. Since a projection 11a for forming a tread pattern is provided to the top force 11, at the same time as the joint portions are melted, the projection 11a intrudes into the coupling portion, the bonding strength of both is increased by mixing the resin and elastomer in the boundary of the coupling portion, and the tread pattern is formed on the tread face of the tire.

Description

【発明の詳細な説明】 本発明は、構成簡易、しかも強度に優れた注型タイヤを
製造しうる注型タイヤの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for producing a cast tire that has a simple structure and excellent strength.

一般に注型タイヤは、外金型と内金型とで形成されるキ
ャビティ内に流動性のある高分子材料を加圧注入し、こ
れを硬化することにより製造されるが、特に高分子材料
として熱可塑性樹脂等の硬質材料を用いた場合には、成
形タイヤをキャビティから取外すのが極めて困雛となり
、従って例えば第１図に示す如く、タイヤの赤道面ａで
二分割した一対の半環状部材す、ｂを予め成形した上、
両者を熱融着により接合するか、あるいは第２図に示す
如く半環状部材す、ｂを、クラウン部に装着スるトレン
ドゴムＣを介して接合一体化する方法が採用されている
。前者は、赤道面即ちタイヤ赤道を含むタイヤの軸方向
に対して垂直な面で接合されるため・、接合面積はクラ
ウン部の厚さにより制限され、あまり大とはなしえず、
接合強度が充分であるとはいえない。他方後者は、トレ
ッドゴムＣと半環状部材す、ｂとを接合するのに手間を
要するという問題がある。Generally, cast tires are manufactured by injecting a fluid polymer material under pressure into a cavity formed by an outer mold and an inner mold, and curing it. When a hard material such as a thermoplastic resin is used, it is extremely difficult to remove the molded tire from the cavity. Therefore, as shown in FIG. After pre-forming s and b,
The two are joined by heat fusion, or as shown in FIG. 2, a method is adopted in which the semi-annular members A and B are joined together via trend rubber C attached to the crown portion. The former is joined at the equatorial plane, that is, a plane perpendicular to the axial direction of the tire that includes the tire equator, so the joining area is limited by the thickness of the crown and cannot be made very large.
It cannot be said that the bonding strength is sufficient. On the other hand, the latter has a problem in that it requires time and effort to join the tread rubber C and the semi-annular members A and b.

従って本発明は、製造が比較的簡単な前者の方法に着目
して種々研究を重ねた結果、半環状部材の接合強度を高
めえた注型タイヤの製造方法を見出し完成したものであ
り、以下その一実施例を図面に基づき説明する。Therefore, the present invention focuses on the former method, which is relatively easy to manufacture, and as a result of various researches, we have discovered and completed a method for manufacturing a cast tire that can increase the joint strength of semi-annular members. An embodiment will be described based on the drawings.

本発明は第３図に示すごとく、タイヤの赤道面ａ近傍で
二分されその向き合う側に突出する張出し片４．５を設
けた一対の熱可塑性エラスｉ・マー又は熱可塑性樹脂か
らなる半環状部材２．３を予め成形し、前記張出し片４
．５を互いに重ね合わせて圧力下で接合一体化したこと
を特徴としている。As shown in FIG. 3, the present invention consists of a pair of semi-annular members made of thermoplastic elastomer or thermoplastic resin that are bisected near the equatorial plane a of the tire and provided with overhanging pieces 4.5 that protrude on opposite sides. 2.3 is pre-formed and the overhanging piece 4
．． 5 are stacked on top of each other and joined together under pressure.

ここで半環状部材２．３は、タイヤをその赤道面ａ近傍
に沿い二分した半割り体であり、各半環状部材２．３に
は、円環状の前記張出し片４．５をその向き合う側に一
体に連続して突出させ、又張出し片４．５は重ね合わせ
ることによって、本例ではタイヤのトレンド部中央の接
地面部を形成しうる。トレンド部の接地面側に位置する
張出し片４には、その内周面に、該張出し片４の根元を
起点とし、又その先端を終点とする、略斜め２字状に折
曲がる折曲部からなる鉤状部６を形成し、又張出し片５
は、張出し片４の鉤状部６と嵌合する同形状に折曲がる
鉤部７を外周面に有し、張出し片４．５は鉤状部６．７
を係合させ重合することにより、張出し片４．５は赤道
面ａと交わる面で重ね合わさせる。なお赤道面ａに交わ
る面とは、赤道面ａに対して直交する円周面である接地
面と同心な円筒面の他、赤道面ａと平行な平面をのぞく
、赤道面ａに対して種々に傾く面をいう。Here, the semi-annular member 2.3 is a half-split body obtained by dividing the tire into two along the vicinity of the equatorial plane a, and each semi-annular member 2.3 has the annular overhang piece 4.5 on its opposite side. By protruding integrally and continuously, and by overlapping the overhanging pieces 4.5, in this example, the ground contact area at the center of the trend section of the tire can be formed. The overhang piece 4 located on the ground-contact side of the trend part has a bent portion on its inner circumferential surface that is bent into an approximately diagonal two-character shape starting from the root of the overhang piece 4 and ending at the tip thereof. A hook-shaped portion 6 is formed, and an overhanging piece 5 is formed.
has a hook portion 7 on its outer peripheral surface that is bent into the same shape as the hook portion 6 of the overhang piece 4, and the overhang piece 4.5 has a hook portion 6.7 on the outer peripheral surface.
By engaging and superimposing the overhanging pieces 4.5, the overhanging pieces 4.5 are overlapped in a plane intersecting with the equatorial plane a. Note that the plane that intersects with the equatorial plane a includes various planes with respect to the equatorial plane a, including a cylindrical surface concentric with the ground plane, which is a circumferential surface perpendicular to the equatorial plane a, and a plane parallel to the equatorial plane a. A surface that is inclined to .

又張出し片４．５はその重ね合わせにより、該重ね合わ
せ部の肉厚Ｔ１が他のクラウン部の肉厚Ｔ２よりも厚肉
となるよう張出し片４は接地面から外向きに、又張出し
片５は、内腔面から内向きに夫々膨出させるごとく形成
する。又張出し片４．５の中寸度即ち重なり合う巾Ｗは
、少なくとも５龍必要である。５　ｍより少ない場合充
分な接合強度は得られず、また重なり合う幅が１００ｆ
ｉを越えると熱融着等による接合の際、不均一な接合状
態が得られ易く、あまり好ましくない。さらに張出し片
４．５に鉤状部６．７を設けて係合させることによって
、前記半環状部材２．３を接合一体化する際、通常必要
となる両者の固定が不必要となり、装置の簡略化と作業
の簡易化とを図るとともに、接合時のタイヤ形状の変形
が防止できる。Also, the overhanging pieces 4.5 are arranged so that the overlapping pieces 4 and 5 are arranged outwardly from the ground plane so that the thickness T1 of the overlapping part becomes thicker than the wall thickness T2 of the other crown parts. 5 are formed so as to bulge inward from the inner cavity surface. Further, the medium size of the overhanging piece 4.5, that is, the overlapping width W, is required to be at least 5 mm. If it is less than 5 m, sufficient joint strength cannot be obtained, and the overlapping width is 100 f.
If it exceeds i, non-uniform bonding conditions are likely to be obtained during bonding by heat fusion or the like, which is not very preferable. Furthermore, by providing a hook-shaped portion 6.7 on the overhanging piece 4.5 and engaging it, it becomes unnecessary to fix the two together, which is normally required when the semi-annular member 2.3 is joined and integrated. In addition to simplifying the process and making the work easier, deformation of the tire shape during joining can be prevented.

又半環状部材２．３の重ね合わせ部の肉厚Ｔ１を他のク
ラウン部の肉厚Ｔ２よりも大としたのは、接合に際して
の係合部分即ち重ね合わせ部の樹脂あるいはエクストマ
ーをその溶融とともに、接合境界面に沿い均一に流動拡
散させ、強固な接合面を形成するためである。The reason why the thickness T1 of the overlapping part of the semi-annular member 2.3 is made larger than the thickness T2 of the other crown parts is because the resin or extomer at the engaging part, that is, the overlapping part, is melted during joining. At the same time, this is to uniformly flow and diffuse along the bonding interface to form a strong bonding surface.

前記半環状部材４．５を接合−・体化するには、前記張
出し片４．５の係合部分を中心に金型１０に挟持させ熔
融加圧する。金型１０はＬ金型１１と下金型１２とを具
え、上金型１１つまりタイヤのトレッド部に位置する金
型にはトレッド模様を形成するための突起１１ａを設け
ており、係合部分の溶融と同時に、この突起１１ａが係
合部分に向って侵入することにより、係合部分の境界に
おける樹脂、エトラストマーを相互に混合させ、両者の
接合強度が増大する。同時にタイヤのトレッド面にはト
レッド模様が形成され、ウェットグリップ、トラクショ
ン性等が改善される。なお係合部分の溶融には加熱によ
るほか、高周波の照射によるいわゆる高周波ウエルダー
を採用することができる。In order to join and form the semi-annular member 4.5 into a body, the engaging portion of the overhanging piece 4.5 is held in the mold 10 and melted and pressurized. The mold 10 includes an L mold 11 and a lower mold 12, and the upper mold 11, that is, the mold located at the tread portion of the tire, is provided with a protrusion 11a for forming a tread pattern, and an engaging portion. Simultaneously with the melting, the protrusion 11a penetrates toward the engaging portion, thereby causing the resin and elastomer at the boundary of the engaging portion to mix with each other, thereby increasing the bonding strength between the two. At the same time, a tread pattern is formed on the tread surface of the tire, improving wet grip, traction, etc. In addition to heating, a so-called high-frequency welder using high-frequency irradiation can be used to melt the engaging portion.

本発明において、半環状部材２．３は、ポリエステル系
エラストマー、ポリウレタン系エラストマー等の熱可塑
性エラストマーあるいはナイロン、ポリエステル、ポリ
エチレン、ポリプロピレン等の熱可塑性樹脂等の材料を
、従来の注型法に従って成形でき、又成型法としても、
射出成型、真空成型等の方法が採用できる。In the present invention, the semi-annular member 2.3 can be molded from a material such as a thermoplastic elastomer such as a polyester elastomer or a polyurethane elastomer, or a thermoplastic resin such as nylon, polyester, polyethylene, or polypropylene according to a conventional casting method. , also as a molding method,
Methods such as injection molding and vacuum molding can be employed.

又半環状部材２．３のビード部１４は第３図に示す如く
非伸張性ビードコアー１５を埋設することができ、又ビ
ード部１４の内側又は外側には、ビードコアー１５と嵌
合するための周方向にのびる溝（図示せず）を形設する
ことができ、又鉤状部６．７はときに省略しうる他、半
環状部材２．３の張出し部４．５を保合できるものであ
れば、種々な形状のものが採用できる。Also, a non-extensible bead core 15 can be embedded in the bead portion 14 of the semi-annular member 2.3 as shown in FIG. A groove (not shown) extending in the direction can be formed, and the barb 6.7 can sometimes be omitted and can also hold the overhang 4.5 of the semi-annular member 2.3. If so, various shapes can be adopted.

炊上のごとく本発明の製造方法は、タイヤ本体を二分し
かつ張出し片を具える半環状部材を予め成型するため、
金型を簡素化でき、しかも成形後の取出しが容易であり
、しかもこれをトレッド模様形成と同時に接合しうるた
め、接合強度の増大、さらにはウェットクリップ性能、
トラクション性能の向上が可能となる。なお本発明によ
り得られた注型タイヤは、乗用車、自動二輪車、軽自動
車、農耕車両あるいはレジャー用車両等のあらゆるタイ
ヤに適用しうる。Like cooking, the manufacturing method of the present invention divides the tire body into two and pre-molds a semi-annular member having an overhanging piece.
The mold can be simplified, it can be easily removed after molding, and it can be joined at the same time as the tread pattern is formed, which increases the joint strength and improves wet clip performance.
Traction performance can be improved. The cast tire obtained according to the present invention can be applied to all kinds of tires such as passenger cars, motorcycles, light vehicles, agricultural vehicles, and leisure vehicles.

【図面の簡単な説明】[Brief explanation of drawings]

第１図、第２図は従来の注型タイヤの断面図、第３図は
本発明の製造方法における半環状部材の組立状態の断面
図、第４図は金型で接合する状態を示す概略図である。 ２．３−半環状部材、　４．５−張出し片、６．７−鉤
状部。 特許出願人　　　　　住友ゴム工業株式会社代理人　　
弁理士　　苗　　村　　　　　正第１　図 第２図Figures 1 and 2 are cross-sectional views of a conventional cast-molded tire, Figure 3 is a cross-sectional view of a half-annular member assembled in the manufacturing method of the present invention, and Figure 4 is a schematic diagram showing a state in which they are joined using a mold. It is a diagram. 2.3-Semi-annular member, 4.5-Overhanging piece, 6.7-Hook-shaped part. Patent applicant Sumitomo Rubber Industries Co., Ltd. Agent
Patent Attorney Tadashi Naemura Figure 1 Figure 2

Claims (1)

【特許請求の範囲】 （１１タイヤの赤道面近傍で二分されかつ向き合う側に
突出する張出し片を設けた一対の熱可塑性エラストマー
又は熱可塑性樹脂からなる半環状部材を予め成形し、前
記張出し片を互いに重ね合わせて圧力下で接合一体化し
たことを特徴とするｌ・レッド模様を有する注型タイヤ
の製造方法。 （２）　　張出し片は赤道面と交わる面で互いに重ね合
わされ又接合一体化と同時に゛タイヤに′トレッド模様
を形成する特許請求の範囲第１項記載の注型タイヤの製
造方法。 （３）前記張出し片は鉤状部を有し、該鉤状部を互いに
係合させ、接合一体化する特許請求の範囲第１項記載の
注型タイヤの製造方法。[Scope of Claims] (11) A pair of semi-annular members made of thermoplastic elastomer or thermoplastic resin are formed in advance and are bisected near the equatorial plane of the tire and have overhanging pieces protruding on opposite sides. A method for manufacturing a cast tire having an L-red pattern, characterized in that the overhanging pieces are overlapped with each other and joined together under pressure.゛The method for manufacturing a cast tire according to claim 1, wherein a tread pattern is formed on the tire. (3) The overhanging pieces have hook-shaped portions, and the hook-shaped portions are engaged with each other and joined. A method for manufacturing a cast tire according to claim 1, which is integrated.
JP58068980A 1983-04-19 1983-04-19 Manufacture of cast tire Granted JPS59194829A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP58068980A JPS59194829A (en) 1983-04-19 1983-04-19 Manufacture of cast tire

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP58068980A JPS59194829A (en) 1983-04-19 1983-04-19 Manufacture of cast tire

Publications (2)

Publication Number Publication Date
JPS59194829A true JPS59194829A (en) 1984-11-05
JPH0410415B2 JPH0410415B2 (en) 1992-02-25

Family

ID=13389321

Family Applications (1)

Application Number Title Priority Date Filing Date
JP58068980A Granted JPS59194829A (en) 1983-04-19 1983-04-19 Manufacture of cast tire

Country Status (1)

Country Link
JP (1) JPS59194829A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02223430A (en) * 1988-11-30 1990-09-05 Sumitomo Rubber Ind Ltd Manufacture of tire
US4990296A (en) * 1989-08-21 1991-02-05 Garlock Inc. Welding of filled sintered polytetrafluoroethylene
JPH04259541A (en) * 1991-02-13 1992-09-16 Sumitomo Rubber Ind Ltd Manufacture of pneumatic tire
JP2011207166A (en) * 2010-03-30 2011-10-20 Bridgestone Corp Method of manufacturing tire, and tire
JP2012046032A (en) * 2010-08-25 2012-03-08 Bridgestone Corp Tire
JP2012086472A (en) * 2010-10-20 2012-05-10 Sumitomo Rubber Ind Ltd Method for producing ply material for tire

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511894A (en) * 1978-07-03 1980-01-28 Goodyear Tire & Rubber Method of manufacturing tire* and tire made by said method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5511894A (en) * 1978-07-03 1980-01-28 Goodyear Tire & Rubber Method of manufacturing tire* and tire made by said method

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02223430A (en) * 1988-11-30 1990-09-05 Sumitomo Rubber Ind Ltd Manufacture of tire
US4990296A (en) * 1989-08-21 1991-02-05 Garlock Inc. Welding of filled sintered polytetrafluoroethylene
JPH04259541A (en) * 1991-02-13 1992-09-16 Sumitomo Rubber Ind Ltd Manufacture of pneumatic tire
JP2011207166A (en) * 2010-03-30 2011-10-20 Bridgestone Corp Method of manufacturing tire, and tire
JP2012046032A (en) * 2010-08-25 2012-03-08 Bridgestone Corp Tire
JP2012086472A (en) * 2010-10-20 2012-05-10 Sumitomo Rubber Ind Ltd Method for producing ply material for tire

Also Published As

Publication number Publication date
JPH0410415B2 (en) 1992-02-25

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