JPS60220734A - Preparation of hollow rubber product - Google Patents

Preparation of hollow rubber product

Info

Publication number
JPS60220734A
JPS60220734A JP59077353A JP7735384A JPS60220734A JP S60220734 A JPS60220734 A JP S60220734A JP 59077353 A JP59077353 A JP 59077353A JP 7735384 A JP7735384 A JP 7735384A JP S60220734 A JPS60220734 A JP S60220734A
Authority
JP
Japan
Prior art keywords
bonding
rubber pieces
unvulcanized rubber
hollow
hollow rubber
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.)
Pending
Application number
JP59077353A
Other languages
Japanese (ja)
Inventor
Yukihiro Saito
幸広 斉藤
Hiromi Amano
天野　浩巳
Shiro Honna
本名　四郎
Toru Honda
本田　亨
Hiroyuki Kawahara
川原　浩之
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.)
Kinugawa Rubber Industrial Co Ltd
Original Assignee
Kinugawa Rubber Industrial Co 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 Kinugawa Rubber Industrial Co Ltd filed Critical Kinugawa Rubber Industrial Co Ltd
Priority to JP59077353A priority Critical patent/JPS60220734A/en
Publication of JPS60220734A publication Critical patent/JPS60220734A/en
Pending 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
    • B29C69/00—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore
    • B29C69/004—Combinations of shaping techniques not provided for in a single one of main groups B29C39/00 - B29C67/00, e.g. associations of moulding and joining techniques; Apparatus therefore making articles by joining parts moulded in separate cavities, said parts being in said separate cavities during said 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
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/22—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using layers or sheathings having a shape adapted to the shape of the article
    • 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
    • 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
    • B29C66/50—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
    • 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
    • B29C66/70—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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • 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
    • B29C66/73—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset
    • B29C66/737—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined
    • B29C66/7375—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured
    • B29C66/73751—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized
    • B29C66/73752—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 intensive physical properties of the material of the parts to be joined, by the optical properties of the material of the parts to be joined, by the extensive physical properties of the parts to be joined, by the state of the material of the parts to be joined or by the material of the parts to be joined being a thermoplastic or a thermoset characterised by the state of the material of the parts to be joined uncured, partially cured or fully cured the to-be-joined area of at least one of the parts to be joined being uncured, i.e. non cross-linked, non vulcanized the to-be-joined areas of both parts to be joined being uncured
    • 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
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/326—Shaping the burr, e.g. by the joining tool
    • 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
    • B29C66/32—Measures for keeping the burr form under control; Avoiding burr formation; Shaping the burr
    • B29C66/328—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect
    • B29C66/3282—Leaving the burrs unchanged for providing particular properties to the joint, e.g. as decorative effect for reinforcing the joint
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2021/00—Use of unspecified rubbers as moulding material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29K—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS OR TO MATERIALS FOR MOULDS, REINFORCEMENTS, FILLERS OR PREFORMED PARTS, e.g. INSERTS
    • B29K2105/00—Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24—Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • 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
    • B29L2022/00—Hollow articles
    • 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
    • B29L2031/00—Other particular articles
    • B29L2031/54—Balls

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

PURPOSE:To give full bonding force to a bonding surface by carrying out vulcanization and bonding as the bonding surface of unvulcanized rubber pieces divided and preformed and the parting surfaces of the molds housing unvulcanized rubber pieces are prevented from coinciding with each other. CONSTITUTION:The bonding surfaces 5 of unvulcanized rubber pieces A, B for forming hollow products divided and preformed are faced closely with each other to be vulcanized and bonded with mold 11. In this case, as the bonding surfaces 5 of the unvulcanized rubber pieces A, B and the parting surfaces P of the external molds 12, 13 housing the rubber pieces A, B are prevented from coinciding with each other vulcanization, bonding are carried out. Therefore, full compression bonding force can be given to the bonding surfaces to prepare a hollow rubber product free from unsticking phenomenon and of good quality.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、中空状ゴム製品の製造方法に関する。[Detailed description of the invention] Industrial applications The present invention relates to a method for manufacturing hollow rubber products.

従来技術 従来の中空法ゴム製品の製造方法としては、第１図（イ
）（ロ）に示し皮ものがある。すなわち成形金型１は、
第１の外金型２、第２の外金型３、及びこの両金型間に
介挿された中子型４とから構成されている。前記第１、
第２の外金型２．３には各々キャビティ２ａ、３ａが成
形されており、又中子型４には該キャビティ２に、３＆
に連続して、縮み代を成形するためのキャビティ４ａ・
・・が設けられている。しかして、この成形金型１によ
り、分割して中空製品のＡｓと８部とを未加流ゴムで成
形する。このときＡ、Ｂ両部の各端縁には、接合面５・
・・を有する縮み代６が一体に成形される。そして次に
第１図（ロ）に示し友ように、中子型４を増り除き、各
接合面５を接面させ、かつ各縮み代６を収縮させつつ加
流、接合成形し、中空ゴム成品７會得るのである。BACKGROUND ART Conventional methods for producing hollow rubber products include leather products shown in FIGS. 1(a) and 1(b). That is, the molding die 1 is
It is composed of a first outer mold 2, a second outer mold 3, and a core mold 4 inserted between the two molds. Said first,
The second outer mold 2.3 has cavities 2a and 3a formed therein, and the core mold 4 has cavities 2 and 3 formed therein.
A cavity 4a for forming a shrinkage margin is continuously formed.
... is provided. Then, using this molding die 1, 8 parts of As and 8 parts of the hollow product are molded with unfluided rubber. At this time, each edge of both parts A and B has a joint surface 5.
A shrinkage margin 6 having ... is integrally molded. Next, as shown in FIG. 1(B), the number of core molds 4 is increased and removed, each joint surface 5 is brought into contact with the other, and each shrinkage allowance 6 is contracted while being hot-flowed and joint-molded. Seven rubber products were obtained.

しかしながらこの中空ゴム成品の成形方法にあつては、
前記Ａ、Ｂ両部の接合面５と、第１．第２の外金型２．
３とのパーティング面Ｐとが一致した状態で、加泥、接
合成形が゛なされる。このため対応する縮み代６に充分
な接合力を付与されず、別派成形後第２図に示したよう
に、Ａ、Ｂ両部の接合面５間に口開きと称される表面の
未接合現象Ｓが発生し、Ａ、Ｂ両部の密着力が不充分と
なる問題点があった。However, regarding the molding method of this hollow rubber product,
The joint surface 5 of both parts A and B, and the first. Second outer mold 2.
Adding mud and joining molding are performed in a state where the parting surface P and the parting surface P are aligned with each other. For this reason, sufficient bonding force is not applied to the corresponding shrinkage allowance 6, and as shown in FIG. There was a problem in that the bonding phenomenon S occurred and the adhesion between both parts A and B was insufficient.

発明の目的 本発明は、かかる中空状ゴム製品製造方法の実情に鑑み
てなされ次ものであシ、分割成形された各部の接合面に
、充分な接合力が得られるようＫすることＫよって、前
記問題点を解決し友中空状ゴム製品の製造方法を提供す
ることを目的とするものである。OBJECTS OF THE INVENTION The present invention has been made in view of the actual situation of the method for manufacturing hollow rubber products, and has the following objects: The object of the present invention is to solve the above problems and provide a method for manufacturing hollow rubber products.

発明の目的 前記目的を達成するために本発明にあっては一分割して
予備成形し友中空状製品成形用の未別派ゴムの接合面と
、該未別派ゴムを収容した成形金型のパーティング面と
を不一致状にして、別派。OBJECTS OF THE INVENTION In order to achieve the above-mentioned objects, the present invention provides a joint surface of a non-woven rubber that is divided into parts and preformed to form a hollow product, and a mold containing the non-woven rubber. A separate faction with a disagreement with the parting side.

接合成形するようにしである。It is designed to be bonded and molded.

実施例 以下本発明の一実施例について、図面に従って説明する
。すなわち第１図をもって前述したように、Ａ、Ｂ両部
は、まず未別派ゴムにて成形される。このとき第３図に
示したように成形金型１１＋２構成する第１．第２の外
金型１２　、１３は、パーティング面ＰがＡ、Ｂ両部の
接合面１５と不一致となるように変位させｔものを用い
る。そしてこの第３図に示し次状態すなわちＡ、Ｂ両部
の接合面５と両外金型１２　、１３のパーティング面Ｐ
とが不一致の状態で、加泥、接合成形する。これによっ
て、各縮み代は充分な圧縮接合力を得ることができ、接
合不良を吸収して、第４図に示したように、未接合現象
の発生することない中空ゴム製品１７を得ることができ
るのである。EXAMPLE An example of the present invention will be described below with reference to the drawings. That is, as described above with reference to FIG. 1, both parts A and B are first molded from unbetsuha rubber. At this time, as shown in FIG. 3, the first molding die 11+2 is constructed. The second outer molds 12 and 13 are those which are displaced so that the parting surface P does not match the joining surface 15 of both parts A and B. The next state shown in FIG.
Add mud and join and form when the two do not match. As a result, sufficient compressive bonding force can be obtained for each shrinkage margin, absorbing bonding defects, and obtaining a hollow rubber product 17 without any non-bonding phenomenon as shown in FIG. It can be done.

なお、前記実施例においては、両外金型１２　、１３の
パーティング面Ｐを中空ゴム製品１７の中心線りに対し
て、相対向する方向に変位させたものを示したが、第５
図に示したように中心線ｔに対して同方向に変位させて
も、同様の成形品を得ることができる。In the above embodiment, the parting surfaces P of both the outer molds 12 and 13 were displaced in the direction facing each other with respect to the center line of the hollow rubber product 17.
A similar molded product can be obtained by displacing in the same direction with respect to the center line t as shown in the figure.

さらに第６図に示し友ように、別派、接合成形時にＡ、
Ｂ両部の内側に補強材９ｔ−着装すれば、内周部に補強
層を具備し几中空伏ゴム成品を容易に成形することがで
きる。Furthermore, as shown in Fig. 6, A, when forming the joint,
By attaching the reinforcing material 9t to the inside of both parts B, it is possible to easily mold a hollow rubber product with a reinforcing layer on the inner periphery.

発明の詳細 な説明したように本発明は、未別派ゴムの接合面と、成
形金型のパーティング面とを不一致状態にして、加泥、
接合成形したことから、前記未別派ゴムの接合面は充分
な圧縮接合力を得ることができ、接合不良を吸収して口
開きと称される未接合現象の発生することない、優れた
中空状ゴム製品を得ることができる。DETAILED DESCRIPTION OF THE INVENTION As described above, the present invention makes the bonding surface of the unbetsuha rubber and the parting surface of the molding die mismatched, and adds mud.
Because of the bonded molding, the bonding surface of the Mibespa rubber can obtain sufficient compressive bonding force, and has an excellent hollow structure that absorbs bonding defects and does not cause the non-bonded phenomenon called opening. rubber products can be obtained.

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

＠１図（イ）（ロ）は、従来の中空状ゴム製品の製造方
法を示す説明図、第２図は、第１図（ロ）のＣ部拡大説
明図、第３図は、本発明の一実施例を示す説明図、第４
図は、第３図Ｄｓ拡大説明図、第５図は、本発明の他の
実施例を示す説明図、第６図は、補強材を用い友場合の
実施例を示す説明図である。 ５・・・接合面、６・・・縮み代、１１・・・成形金型
、１２・・１第１の外金型、１３・・・第２の外金型゛
、Ｐ・・・パーティング面。 外２名 第１図 第３図@ Figure 1 (a) and (b) are explanatory diagrams showing the conventional manufacturing method of hollow rubber products, Figure 2 is an enlarged explanatory diagram of the C part of Figure 1 (b), and Figure 3 is an explanatory diagram showing the method of manufacturing a conventional hollow rubber product. Explanatory diagram showing an example of
The drawings are an enlarged explanatory view of FIG. 3 Ds, FIG. 5 is an explanatory view showing another embodiment of the present invention, and FIG. 6 is an explanatory view showing an embodiment in which a reinforcing material is used. 5... Joint surface, 6... Shrinkage allowance, 11... Molding die, 12... 1st outer mold, 13... 2nd outer mold, P... Party Ng side. 2 people Figure 1 Figure 3

Claims (1)

【特許請求の範囲】[Claims] （１）分割して予備成形した中空製品成形用の未加流ゴ
ムの接合面と、該未加流ゴムを収容し几成形金型のパー
ティング面とを不一致状態にして、加泥、接合成形し九
ことを特徴とする中空状ゴム製品の製造方法。(1) The joint surface of the divided and preformed unflown rubber for molding hollow products is made to be in a mismatched state with the parting surface of the molding mold that accommodates the unflown rubber, and then the joint surface is mixed and joined. A method for producing a hollow rubber product characterized by molding.
JP59077353A 1984-04-17 1984-04-17 Preparation of hollow rubber product Pending JPS60220734A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP59077353A JPS60220734A (en) 1984-04-17 1984-04-17 Preparation of hollow rubber product

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59077353A JPS60220734A (en) 1984-04-17 1984-04-17 Preparation of hollow rubber product

Publications (1)

Publication Number Publication Date
JPS60220734A true JPS60220734A (en) 1985-11-05

Family

ID=13631544

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59077353A Pending JPS60220734A (en) 1984-04-17 1984-04-17 Preparation of hollow rubber product

Country Status (1)

Country Link
JP (1) JPS60220734A (en)

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