JPH11129354A - Manufacture of rubber crawler - Google Patents
Manufacture of rubber crawlerInfo
- Publication number
- JPH11129354A JPH11129354A JP9314451A JP31445197A JPH11129354A JP H11129354 A JPH11129354 A JP H11129354A JP 9314451 A JP9314451 A JP 9314451A JP 31445197 A JP31445197 A JP 31445197A JP H11129354 A JPH11129354 A JP H11129354A
- Authority
- JP
- Japan
- Prior art keywords
- rubber
- base
- rubber crawler
- projections
- peeling
- 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
Links
Landscapes
- Moulds For Moulding Plastics Or The Like (AREA)
- Heating, Cooling, Or Curing Plastics Or The Like In General (AREA)
- Moulding By Coating Moulds (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、新規なゴムクロ−
ラの製造方法に関するものである。The present invention relates to a novel rubber cloth.
The present invention relates to a method for manufacturing a rubber.
【０００２】[0002]
【従来の技術】従来のゴムクロ−ラの製造方法にあって
は、ゴムクロ−ラの外形状を画定するモ−ルド内に未加
硫ゴム材料、スチ−ルコ−ド等をセット・充填し、未加
硫ゴムを加硫してゴムクロ−ラを得る方法が採用されて
いる。しかるに、スプロケットとの係合におけるピッチ
違いのゴムクロ−ラを製造するためには、夫々のピッチ
違いのモ−ルドを個々に製作する必要がある。従って、
このモ−ルドを個々に製作するためにゴムクロ−ラのコ
ストにはね返ってくることとなり、安価なゴムクロ−ラ
は得にくくなる。2. Description of the Related Art In a conventional method of manufacturing a rubber crawler, an unvulcanized rubber material, steel code, and the like are set and filled in a mold defining an outer shape of the rubber crawler. A method of vulcanizing unvulcanized rubber to obtain a rubber crawler has been adopted. However, in order to manufacture a rubber crawler having a different pitch in the engagement with the sprocket, it is necessary to individually manufacture each mold having a different pitch. Therefore,
Since this mold is individually manufactured, the cost of the rubber crawler rebounds, and it is difficult to obtain an inexpensive rubber crawler.
【０００３】又、一般の製造方法にあって、モ−ルドに
は例えばゴムラグを形成するための多数のキャビテイが
備えられるが、ゴム加硫時にはこのキャビテイ内にゴム
材料が流れ込むことから、このゴム材料の動きによりス
チ−ルコ−ドがその分波打ってしまうことがある。In a general manufacturing method, a mold is provided with a large number of cavities, for example, for forming a rubber lug. When rubber is vulcanized, a rubber material flows into the cavity. The steel code may undulate due to the movement of the material.
【０００４】更に、ゴムクロ−ラの外周側のラグや内周
側の突起にはゴムクロ−ラの基体を構成するゴム材料と
は異なるゴム材料にて構成するのが好ましいが、従来の
製造方法ではゴムクロ−ラ全体を一度に加硫することに
なるため、夫々の部位に異種ゴムを適用するのはかなり
難しい面がある。Further, it is preferable that the lugs on the outer peripheral side and the protrusions on the inner peripheral side of the rubber crawler are formed of a rubber material different from the rubber material forming the base of the rubber crawler. Since the entire rubber crawler is vulcanized at one time, it is quite difficult to apply different types of rubber to each part.
【０００５】[0005]
【発明が解決しようとする課題】本発明は上記従来の課
題を解決するゴムクロ−ラの製造方法に係り、ゴムクロ
−ラ基体を加硫成型した後に突起等をその後一体化する
技術を提供するものである。SUMMARY OF THE INVENTION The present invention relates to a method of manufacturing a rubber crawler which solves the above-mentioned conventional problems, and provides a technique of vulcanizing a rubber crawler base and thereafter integrating projections and the like. It is.
【０００６】[0006]
【課題を解決するための手段】本発明は以上の課題を解
決するためになされたものであって、発明の第１は、ベ
ルト状のゴムクロ−ラの長手方向にスチ−ルコ−ドを埋
設し、かつ後工程でラグや突起を接着する部位に剥離用
シ−トを当接して加硫成型する第１工程と、ゴムクロ−
ラの基体に一体化されるラグや突起をその接着する部位
に剥離用シ−トを当接して加硫成型する第２工程と、ゴ
ムクロ−ラの基体の剥離用シ−トとラグや突起の剥離用
シ−トとを剥ぎ取る第３工程と、剥ぎ取った面間に接着
ゴム又は接着剤を挟んでゴムクロ−ラ基体とラグや突起
を当接し両者を接着し一体化する第４工程と、からなる
ゴムクロ−ラの製造方法にかかるものである。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problems, and a first aspect of the present invention is to embed a steel cord in a longitudinal direction of a belt-shaped rubber crawler. A vulcanization molding by contacting a release sheet with a part to which a lug or a projection is to be adhered in a later step;
A second step in which a release sheet is brought into contact with a portion where the lugs and projections integrated with the rubber base are bonded to each other, and vulcanization molding is performed; A third step of peeling off the peeling sheet and a fourth step of abutting the rubber crawler base and the lugs or projections with an adhesive rubber or an adhesive between the peeled surfaces to bond and integrate them. And a method for producing a rubber crawler.
【０００７】そして、発明の第２は、ベルト状のゴムク
ロ−ラの長手方向にスチ−ルコ−ドを埋設し、かつ後工
程でラグや突起を接着する部位に剥離用シ−トを当接し
て加硫成型する第１工程と、ゴムクロ−ラの基体に一体
化されるラグや突起を未加硫ゴムにて成型する第２工程
と、ゴムクロ−ラの基体の剥離用シ−トを剥ぎ取る第３
工程と、剥ぎ取った面に前記のラグや突起を当接しこれ
を加硫して一体化する第４工程と、からなるゴムクロ−
ラの製造方法にかかるものである。A second aspect of the present invention is to embed a steel cord in the longitudinal direction of a belt-like rubber crawler and to make a peeling sheet abut on a portion where a lug or a projection is to be bonded in a later step. And vulcanization molding, a second step of molding lugs and projections integrated with the rubber crawler base with unvulcanized rubber, and a peeling sheet for the rubber crawler base. Take third
And a fourth step of abutting the lugs and projections on the peeled surface and vulcanizing and integrating them.
The present invention relates to a method of manufacturing a rubber.
【０００８】[0008]
【発明の実施の形態】本発明のゴムクロ−ラの製造方法
にあっては、ゴムクロ−ラの基体に対してラグや突起と
を後工程にて接着するものであって、このため接着予定
面に剥離が容易なシ−トを当接しておき、接着直前にこ
れを引きはがしてフレッシュな接着面を露出させるもの
である。即ち、シ−トの剥離によって加硫ゴム表面に適
度の凹凸が得られるため接着が確実となるものである。
通常加硫されたゴム表面にはオイル、ワックス、老化防
止剤等のゴム配合物がブリ−ドしてくるが、加硫時に当
接されているシ−トを剥離することでこの欠点をなくし
たものである。DESCRIPTION OF THE PREFERRED EMBODIMENTS In a method of manufacturing a rubber crawler according to the present invention, lugs and projections are bonded to a base of a rubber crawler in a later step. A sheet which can be easily peeled off is brought into contact with the sheet, and the sheet is peeled off immediately before bonding to expose a fresh bonded surface. That is, since the sheet is peeled off, a proper unevenness is obtained on the surface of the vulcanized rubber, so that the adhesion is ensured.
Normally, a rubber compound such as oil, wax and antioxidant bleeds on the vulcanized rubber surface, but this defect can be eliminated by peeling off the sheet that is in contact during vulcanization. It was done.
【０００９】本発明で用いられる剥離シ−トとは、少な
くとも片面に凹凸をもちかつ加硫ゴムとの剥離が容易な
シ−ト状のものが好ましく、例えばＰＥＴ製帆布（２５
０Ｄ／１（２０３本／５ｃｍ）ｘ２５０Ｄ／２（１２２
本／５ｃｍ））がある。The release sheet used in the present invention is preferably a sheet having irregularities on at least one surface and easy to peel off from the vulcanized rubber.
0D / 1 (203 lines / 5cm) x 250D / 2 (122
Book / 5cm)).
【００１０】そして第１発明における接着用ゴムとして
は本体の加硫ゴムと比べて硫黄量の多いゴムを使用する
のがよく、特に硫黄量の差が１〜１０ＰＨＲのゴムを用
いるのが好ましい。又、接着剤の例としてはクロロプレ
ン系、ウレタン系、エポキシ系の接着剤がある。As the bonding rubber in the first invention, it is preferable to use a rubber having a higher sulfur content than the vulcanized rubber of the main body, and it is particularly preferable to use a rubber having a sulfur content difference of 1 to 10 PHR. Examples of the adhesive include chloroprene-based, urethane-based, and epoxy-based adhesives.
【００１１】本発明のゴムクロ−ラの製造方法は、内周
駆動型ゴムクロ−ラ、即ち駆動用突起を一定ピッチをも
ってゴムクロ−ラ内周側に備えるゴムクロ−ラの製造に
特に好んで採用されるもので、内周駆動型ゴムクロ−ラ
はゴムクロ−ラ内に芯金等が埋設されることなく、従っ
て、ラグや突起は芯金との関係が解除されるため、ゴム
クロ−ラの基体に任意のピッチをもって突起（駆動用突
起）或いはラグが形成されることとなる。The method for producing a rubber roller according to the present invention is particularly preferably employed for producing an inner peripheral driving type rubber roller, that is, a rubber roller having driving projections on the inner peripheral side of the rubber roller at a constant pitch. The inner peripheral drive type rubber crawler does not have the core metal buried in the rubber crawler, and the lugs and protrusions are released from the relation with the core metal. The projections (driving projections) or lugs are formed with the pitch of.
【００１２】このような意味合いで、本発明のゴムクロ
−ラの製造方法にあっては、例えば突起間のピッチが違
うゴムクロ−ラであっても、夫々のモ−ルドを製作する
必要がなくゴムクロ−ラが得られるものであり、特にコ
ストダウンの要求に合致するものである。[0012] In this sense, in the method of manufacturing a rubber crawler of the present invention, even if the rubber crawler has a different pitch between the projections, it is not necessary to manufacture each mold and the rubber crawler does not need to be manufactured.ラ is obtained, and particularly meets cost reduction requirements.
【００１３】そして突起や接地側のラグにあってはゴム
クロ−ラ基体と異なるゴム性状ものが用いられるのが好
ましいが、本発明の方法によれば、すぐれた性状のゴム
クロ−ラが得られることとなる。It is preferable to use a rubber material different from that of the rubber roller base for the protrusions and the lugs on the grounding side. However, according to the method of the present invention, it is possible to obtain a rubber roller having excellent properties. Becomes
【００１４】[0014]
【実施例】以下、第１発明を中心にゴムクロ−ラの製造
方法を更に詳細に説明する。先ず図１は従来のゴムクロ
−ラの製造方法の概略を示すものであり、上モ−ルド２
１、下モ−ルド２２に夫々ラグ及び突起を形成するキャ
ビテイ２１0 、２２0 を備えたものであり、この上下モ
−ルド２１、２２内に未加硫ゴム３１及びスチ−ルコ−
ド３２をセットしこれを加硫してなるものである。DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A method for producing a rubber crawler will now be described in more detail with reference to the first invention. First, FIG. 1 schematically shows a conventional method for producing a rubber crawler.
1, the lower motor - are those having a cavity 21 0, 22 0 to form the respective lug and the projections on the field 22, the vertical mode - unvulcanized rubber 31 and steel in the field 21 - Turkey -
Is set and vulcanized.
【００１５】そして、得られたゴムクロ−ラは図２に示
すようにラグ２３、突起２４が一体に形成されるが、通
常はゴム材料は全体が一律であり、しかもこのラグ２
３、突起２４のピッチは変更することが全くできない。
又、スチ−ルコ−ド３２もゴムの流れに伴って波打って
しまうこともあり、改良が求められていた。The obtained rubber crawler has a lug 23 and a projection 24 integrally formed as shown in FIG. 2, but the rubber material is usually uniform as a whole.
3. The pitch of the projections 24 cannot be changed at all.
Further, the steel cord 32 may also be wavy with the flow of the rubber, so that improvement has been required.
【００１６】図３は第１発明のゴムクロ−ラの製造方法
の概要を示すフロ−チャ−トであり、第１工程ではゴム
クロ−ラの基体となるベルト状ゴム弾性体１とその間に
スチ−ルコ−ド２を埋設した基体を得るものである。そ
してこのベルト状ゴム弾性体１の両面に剥離シ−ト１
１、１２を当接してこれを加硫して基体を得たものであ
る。FIG. 3 is a flowchart showing the outline of the method of manufacturing the rubber roller of the first invention. In the first step, a belt-like rubber elastic body 1 serving as a base of the rubber roller and a belt between the rubber elastic body 1 are provided. This is to obtain a substrate in which the record 2 is embedded. Then, release sheets 1 are provided on both sides of the belt-like rubber elastic body 1.
1 and 12 were brought into contact with each other and vulcanized to obtain a substrate.
【００１７】第２工程ではラグ３、突起４を加硫成型す
るが、これにも同様にゴムクロ−ラ基体１に接着される
面に剥離シ−ト１３、１４を当接しこれを加硫成型した
ものである。In the second step, the lugs 3 and the projections 4 are vulcanized and molded. Similarly, the release sheets 13 and 14 are brought into contact with the surface adhered to the rubber roller base 1 and vulcanized. It was done.
【００１８】尚、剥離シ−ト１１〜１４はＰＥＴ製帆布
（オックス帆布）（２５０Ｄ／１（２０３本／５ｃｍ）
ｘ２５０Ｄ／２（１２２本／５ｃｍ））を用いた。The release sheets 11 to 14 are made of PET canvas (Ox canvas) (250D / 1 (203 / 5cm)).
x250D / 2 (122 lines / 5 cm)).
【００１９】第３工程としてはゴムクロ−ラ基体１、ラ
グ３、突起４における剥離シ−ト１１〜１４をはがす。
そして接着部に本体１、ラグ３、突起４より硫黄量が１
〜５ＰＨＲ多い接着用ゴムシ−ト（厚さ；１〜３ｍｍ）
５を挟み、これを加硫して全体を一体に加硫接着する。In the third step, the peeling sheets 11 to 14 at the rubber crawler base 1, lug 3, and projection 4 are removed.
Then, the amount of sulfur is 1 from the body 1, the lug 3, and the projection 4 at the bonding portion.
Up to 5PHR more adhesive rubber sheet (thickness: 1-3mm)
5 is sandwiched and vulcanized, and the whole is integrally vulcanized and bonded.
【００２０】第２発明にあってはラグ３、突起４は未加
硫ゴムをそのまま用いればよく、ラグ３、突起４に当接
する剥離シ−ト１３、１４は不要である。In the second invention, the lugs 3 and the projections 4 may be made of unvulcanized rubber as they are, and the peeling sheets 13 and 14 that come into contact with the lugs 3 and the projections 4 are unnecessary.
【００２１】尚、図例にあってはゴムクロ−ラ基体１を
有端長尺のゴム弾性体をもって説明したが、最初から無
端状に成型したものであってもよいことは勿論である。In the illustrated example, the rubber crawler base 1 is described as a rubber elastic body having an end and a long length. However, it is needless to say that the rubber crawler base 1 may be formed endlessly from the beginning.
【００２２】[0022]
【発明の効果】本発明にあっては、ゴムクロ−ラ基体中
のスチ−ルコ−ドは波打つことはなく、しかもラグ、突
起はピッチを変更して接着することが可能であり、特に
別々のモ−ルドを用いることなくゴムクロ−ラを得るこ
とが可能となった。According to the present invention, the steel cord in the rubber crawler substrate does not undulate, and the lugs and projections can be bonded by changing the pitch. It became possible to obtain a rubber crawler without using a mold.
【００２３】即ち、従来の製造方法にてピッチ違いのゴ
ムクロ−ラを製作する場合には、ピッチが異なる毎にモ
−ルドの新設が必要であったが本発明の方法ではこれが
不要となったものであり、又、スチ−ルコ−ドの波打ち
がほとんどなくなりゴムクロ−ラとしての性能が向上し
たものである。更に、ゴムクロ−ラの本体ゴムと違った
ゴム材料をラグ、突起に適用が可能となり、機能に応じ
た材料の使い分けができるようになった。That is, in the case of manufacturing a rubber crawler having a different pitch by the conventional manufacturing method, it is necessary to newly establish a mold every time the pitch is different, but this is no longer necessary in the method of the present invention. In addition, the corrugation of the steel code is almost eliminated and the performance as a rubber roller is improved. Further, a rubber material different from the main rubber of the rubber crawler can be applied to the lugs and the protrusions, so that the material can be properly used according to the function.
【図１】図１は従来のゴムクロ−ラの製造方法の概略を
示すものである。FIG. 1 schematically shows a conventional method for producing a rubber crawler.
【図２】図２は図１にて示す製造方法によるゴムクロ−
ラを示す断面図である。FIG. 2 is a rubber cloth according to the manufacturing method shown in FIG.
FIG.
【図３】図３は本発明のゴムクロ−ラの概要を示すフロ
−チャ−トである。FIG. 3 is a flowchart showing an outline of a rubber roller of the present invention.
１‥‥ゴムクロ−ラの基体、 ２‥‥スチ−ルコ−ド、 ３‥‥ラグ、 ４‥‥突起、 ５‥‥接着用ゴムシ−ト、 １１、１２、１３、１４‥‥剥離シ−ト。 1) rubber crawler base, 2) steel cord, 3) lug, 4) protrusion, 5) rubber sheet for bonding, 11, 12, 13, 14 peeling sheet .
───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 ＦＩ // Ｂ２９Ｋ 21:00 105:08 105:22 105:24 Ｂ２９Ｌ 31:00 ──────────────────────────────────────────────────続 き Continued on the front page (51) Int.Cl. 6 Identification code FI // B29K 21:00 105: 08 105: 22 105: 24 B29L 31:00
Claims (2)
向にスチ−ルコ−ドを埋設し、かつ後工程でラグや突起
を接着する部位に剥離用シ−トを当接して加硫成型する
第１工程と、ゴムクロ−ラの基体に一体化されるラグや
突起をその接着する部位に剥離用シ−トを当接して加硫
成型する第２工程と、ゴムクロ−ラの基体の剥離用シ−
トとラグや突起の剥離用シ−トとを剥ぎ取る第３工程
と、剥ぎ取った面間に接着ゴム又は接着剤を挟んでゴム
クロ−ラ基体とラグや突起を当接し両者を接着し一体化
する第４工程と、からなるゴムクロ−ラの製造方法。1. A vulcanization molding in which a steel cord is buried in the longitudinal direction of a base of a belt-shaped rubber roller, and a peeling sheet is brought into contact with a portion to which a lug or a projection is adhered in a later step. A first step of performing vulcanization molding by bringing a release sheet into contact with a portion to which a lug or projection integrated with the base of the rubber crawler is bonded; and separating the base of the rubber crawler. Sheet
A third step of peeling off the sheet for peeling off the lug and the projections, and contacting the rubber crawler base with the lugs and the projections with an adhesive rubber or an adhesive between the peeled surfaces, and bonding the two together to form an integral body. And a fourth step of producing a rubber crawler.
向にスチ−ルコ−ドを埋設し、かつ後工程でラグや突起
を接着する部位に剥離用シ−トを当接して加硫成型する
第１工程と、ゴムクロ−ラの基体に一体化されるラグや
突起を未加硫ゴムにて成型する第２工程と、ゴムクロ−
ラの基体の剥離用シ−トを剥ぎ取る第３工程と、剥ぎ取
った面に前記ラグや突起を当接しこれを加硫して一体化
する第４工程と、からなるゴムクロ−ラの製造方法。2. A vulcanization molding in which a steel cord is buried in the longitudinal direction of a base of a belt-shaped rubber crawler, and a peeling sheet is brought into contact with a portion to which a lug or a projection is bonded in a later step. A first step of molding lugs and projections integrated with the base of the rubber crawler with unvulcanized rubber;
Manufacturing a rubber crawler, comprising: a third step of peeling off a sheet for peeling the base of the rubber, and a fourth step of abutting the lugs and projections on the peeled surface and vulcanizing and integrating them. Method.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9314451A JPH11129354A (en) | 1997-10-29 | 1997-10-29 | Manufacture of rubber crawler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP9314451A JPH11129354A (en) | 1997-10-29 | 1997-10-29 | Manufacture of rubber crawler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11129354A true JPH11129354A (en) | 1999-05-18 |
Family
ID=18053521
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP9314451A Pending JPH11129354A (en) | 1997-10-29 | 1997-10-29 | Manufacture of rubber crawler |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11129354A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159942A (en) * | 2004-12-02 | 2006-06-22 | Bridgestone Corp | Endless structure for rubber crawler |
| JP2010046813A (en) * | 2008-08-19 | 2010-03-04 | Sumitomo Rubber Ind Ltd | Device of manufacturing rubber crawler |
| WO2016208124A1 (en) * | 2015-06-24 | 2016-12-29 | 株式会社ブリヂストン | Method for producing rubber crawler |
| JP2017030677A (en) * | 2015-08-05 | 2017-02-09 | 株式会社ブリヂストン | Method for manufacturing rubber crawler |
| US10167029B2 (en) | 2014-06-10 | 2019-01-01 | Bridgestone Corporation | Rubber crawler |
-
1997
- 1997-10-29 JP JP9314451A patent/JPH11129354A/en active Pending
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006159942A (en) * | 2004-12-02 | 2006-06-22 | Bridgestone Corp | Endless structure for rubber crawler |
| JP2010046813A (en) * | 2008-08-19 | 2010-03-04 | Sumitomo Rubber Ind Ltd | Device of manufacturing rubber crawler |
| US10167029B2 (en) | 2014-06-10 | 2019-01-01 | Bridgestone Corporation | Rubber crawler |
| WO2016208124A1 (en) * | 2015-06-24 | 2016-12-29 | 株式会社ブリヂストン | Method for producing rubber crawler |
| JP2017007576A (en) * | 2015-06-24 | 2017-01-12 | 株式会社ブリヂストン | Manufacturing method of rubber crawler |
| CN107708953A (en) * | 2015-06-24 | 2018-02-16 | 株式会社普利司通 | The manufacture method of rubber belt track |
| US20180290410A1 (en) * | 2015-06-24 | 2018-10-11 | Bridgestone Corporation | Method for manufacturing rubber crawler |
| US10518492B2 (en) | 2015-06-24 | 2019-12-31 | Bridgestone Corporation | Method for manufacturing rubber crawler |
| JP2017030677A (en) * | 2015-08-05 | 2017-02-09 | 株式会社ブリヂストン | Method for manufacturing rubber crawler |
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