JPS5937347A - Structure of rubber bag - Google Patents
Structure of rubber bagInfo
- Publication number
- JPS5937347A JPS5937347A JP57146780A JP14678082A JPS5937347A JP S5937347 A JPS5937347 A JP S5937347A JP 57146780 A JP57146780 A JP 57146780A JP 14678082 A JP14678082 A JP 14678082A JP S5937347 A JPS5937347 A JP S5937347A
- Authority
- JP
- Japan
- Prior art keywords
- layers
- rubber
- rubber bag
- reinforcing layer
- polygon
- 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
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
- B29C70/00—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts
- B29C70/04—Shaping composites, i.e. plastics material comprising reinforcements, fillers or preformed parts, e.g. inserts comprising reinforcements only, e.g. self-reinforcing plastics
- B29C70/28—Shaping operations therefor
- B29C70/30—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core
- B29C70/34—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation
- B29C70/347—Shaping by lay-up, i.e. applying fibres, tape or broadsheet on a mould, former or core; Shaping by spray-up, i.e. spraying of fibres on a mould, former or core and shaping or impregnating by compression, i.e. combined with compressing after the lay-up operation combined with compressing after the winding of lay-ups having a non-circular cross-section, e.g. flat spiral windings
-
- 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
- B29C53/00—Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
- B29C53/56—Winding and joining, e.g. winding spirally
- B29C53/564—Winding and joining, e.g. winding spirally for making non-tubular articles
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Composite Materials (AREA)
- Fluid-Damping Devices (AREA)
- Laminated Bodies (AREA)
- Bag Frames (AREA)
- Diaphragms And Bellows (AREA)
- Moulding By Coating Moulds (AREA)
- Lining Or Joining Of Plastics Or The Like (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、圧縮空気等を封入して物体を加圧したり、自
動車用ジヤツキ等のような揚力を提供する部材として利
用できるほか、流・粉体のコンテナー、防振・緩衝部材
、浮力材等としても利用できるゴム袋の構造に関する。Detailed Description of the Invention The present invention can be used as a member for pressurizing an object by enclosing compressed air or the like, or as a member for providing lift such as an automobile jack, etc., as well as as a container for liquids and powder, and as a vibration-proofing member. - Concerning the structure of a rubber bag that can be used as a buffer member, buoyancy material, etc.
従来、この種のゴム袋としては、六角形をした支承空気
クッション（特公昭４８−１２６０３号）や四角形の圧
縮空気平形クッション（特公昭５５−２２３９９号）が
知られている。しかし、これらは、各々、構造上、周縁
部の接合部分の全部又は１部に強度上の弱点を有する構
成となっているので、この弱点を強化する必要上、複雑
な強化手段を要し、したがって、加工時間が長くかかり
高価であることと、その複雑な強化作業に起因する品質
特に強度上のばらつきが発生しゃすく、信頼性にかける
という欠点がある。Hitherto, as this type of rubber bag, a hexagonal supporting air cushion (Japanese Patent Publication No. 12603/1983) and a rectangular compressed air flat cushion (Japanese Patent Publication No. 55/22399) have been known. However, each of these structures has a strength weakness in all or part of the joint portion of the peripheral edge, so complex reinforcement measures are required to strengthen this weakness. Therefore, it takes a long time to process and is expensive, and the complicated reinforcing work tends to cause variations in quality, particularly in strength, which impairs reliability.
そこで本発明は、このような事情にがんがみてなされた
ものであって、周縁部に強度上の弱点を有することのな
いゴノ・袋の構造を提供することを目的とする。Therefore, the present invention has been made in view of the above-mentioned circumstances, and an object of the present invention is to provide a gono/bag structure that does not have weak points in strength at the peripheral portion.
このため、本発明のゴム袋の構造は、内部に形成したキ
ャビティ内で流体を気密保持するチューブゴムと、それ
に積層した、スチールコードあるいは繊維コードを縦方
向に引きそろえた補強層と、この補強層を被覆したカバ
ーゴムとからなり、かつ、圧力源と連結するだめの接続
バルブを有ｉるゴノ・袋において、ゴム袋全体が平面的
にほぼ奇数正多角形（（２ｎ＋１）角形、１１＝１．２
．３・・・・・〕をなしていて、その（２ｎ＋１）個の
側面の近傍ではつなぎ目のない少なくとも２層以上〔２
ｍ層以上、ｍ≧１〕の偶数層の前記補強層がその層内の
コードの交角を等しく１８０°／（２ｎ＋１．）とする
ように配置され、また、（２ｎ ＋ １ ’）角形をし
だ上下の面では前記補強層が中心付近でｍ（２ｎ＋１）
層、その外側でｍ（２ｎ＋１−１）と中心から離れるに
つれて順次ｍ層ずつ減少していることを特徴とするもの
である。For this reason, the structure of the rubber bag of the present invention consists of a tube rubber that keeps fluid airtight in a cavity formed inside, a reinforcing layer laminated thereon in which steel cords or fiber cords are aligned vertically, and this reinforcing layer. In a gono-bag which is made of a cover rubber coated with a layer and has a connection valve connected to a pressure source, the entire rubber bag has an approximately odd-numbered regular polygon ((2n+1) polygon, 11 =1.2
．． 3...], and in the vicinity of its (2n+1) side surfaces, there are at least two or more seamless layers [2
The reinforcing layers of even number layers (m or more, m≧1) are arranged so that the intersection angles of the cords in the layers are equally 180°/(2n+1.), and have a (2n+1′) rectangular shape. However, on the upper and lower surfaces, the reinforcement layer is m(2n+1) near the center.
The layer is m(2n+1-1) on the outside, and the number of layers decreases by m layers as the distance from the center increases.
以下、図面に示された本発明の実施例に基いて本発明の
詳細な説明する。Hereinafter, the present invention will be described in detail based on embodiments of the present invention shown in the drawings.
第１図〜第３図において、Ｒはゴム袋で、これは全体が
平面的にほぼ奇数正多角形Ｃ（２ｎ＋１）角形、ｎ＝１
．２．３・・、・・・〕をなしている。第１図において
は、ｎ ＝ ２の場合、すなわち正五角形の場合を示す
。このゴム袋Ｒは、チューブ１とその上に積層した補強
層２とこの補強層２を被覆したカバーゴム３かラナル。In Figures 1 to 3, R is a rubber bag, and the whole is an odd regular polygon C(2n+1) in plan view, n=1
．． 2.3...,...]. FIG. 1 shows the case where n = 2, that is, the case of a regular pentagon. This rubber bag R consists of a tube 1, a reinforcing layer 2 laminated thereon, and a cover rubber 3 covering the reinforcing layer 2.
チューブゴム１は、一般に工業的に使用されるゴムから
なり、流体を封入出来るような中空のキャビティを内部
に形成している。このチューブゴム１の上には、スチー
ルコードあるいは天然２合成繊維で出来たすだれ織物等
の縦方向にコードを引きそろえだ補強層２が後述する規
則性をもって配置され、その上に、補強層２を使用目的
に合ったゴム材質から成るカバーゴムで保護している。The tube rubber 1 is made of rubber that is generally used industrially, and has a hollow cavity inside which can seal a fluid. On top of this tube rubber 1, a reinforcing layer 2 made of vertically aligned cords such as steel cords or blind fabrics made of natural 2 synthetic fibers is arranged with the regularity described below. is protected by a cover rubber made of a rubber material suitable for the purpose of use.
捷だ、チューブゴム１の形成するキャビティと、流体圧
力源′（図示せず）と ′を連結する接続バルブ４が
設けられ、これらが一体向に成形、加硫されて、平面的
にほぼ正五角形をしたゴム袋Ｒを形成している。A connection valve 4 is provided to connect the cavity formed by the tube rubber 1 and a fluid pressure source (not shown) and . A pentagonal rubber bag R is formed.
補強層２は、コム袋の（２ｎ＋１）個の側面の近傍で、
第４図、第５図における実施例では■で示す５箇所の側
面の近傍で、つなぎ目のない少なくとも２層以に〔２Ｉ
ｎ層以上、ｍ≧１〕の偶数層で配置されている。捷だ、
補強層２内の互に接する補強コードは、いずれの側面に
おいても等しくコード角ψ−１８０”／（２ｎ ＋１
）であり、第４図お」＝び第５図ではψ二３６°となっ
ている。The reinforcing layer 2 is located near the (2n+1) sides of the comb bag,
In the embodiment shown in FIGS. 4 and 5, at least two seamless layers [2I
An even number of layers (n or more, m≧1) is arranged. It's Kade.
The reinforcing cords in contact with each other in the reinforcing layer 2 have an equal cord angle ψ-180"/(2n +1
), and in Figures 4 and 5, it is ψ236°.
また、補強層２は、（２ｎ＋１）角形をしだ上下面では
（２ｎ＋１．）個の頂点を結ぶ線分で作られる多角形、
第４図の実施例では、０，０．０．がそれぞれ、周縁部
から中央部に向は順次ｍ増づつ多層化され、中央部がｍ
（２ｎ＋１ ）層になるように連続的に強化された構造
となっており、第４図の実施例でｍ ＝ １の場合、中
央のＯが５層。In addition, the reinforcing layer 2 is a polygon formed by line segments connecting (2n+1.) vertices on the top and bottom surfaces of a (2n+1) polygon,
In the embodiment of FIG. 4, 0, 0.0. are multi-layered from the periphery to the center, increasing by m in order, and the center becomes m
It has a structure in which (2n+1) layers are continuously reinforced, and when m = 1 in the example shown in Fig. 4, there are 5 O layers in the center.
Ｏが４層、＠が３層となる。なお、補強層２は上下面の
中央部付近でつなぎ目があってもよい。There are 4 layers of O and 3 layers of @. Note that the reinforcing layer 2 may have a seam near the center of the upper and lower surfaces.
上記のように構成されるゴム袋Ｒを自動車用ジヤツキ等
として使用する場合には、第６図に示されるように、流
体をキャビティ内に圧入するとゴム袋Ｒが膨張してその
高さがＨ６からＨに変化するので、被支持物体５を持ち
揚げることができる。When the rubber bag R configured as described above is used as a jack for an automobile, etc., as shown in FIG. Since it changes from to H, the supported object 5 can be lifted.
次に、上記ゴム袋Ｒの製法を説明する。Next, the manufacturing method of the rubber bag R will be explained.
（１） 所定の厚さの未加硫ゴムシートを一辺の長さ
しの正（２ｎ＋１）角形に裁断し、これを２枚準備して
、タルク等を打粉して公知の方法で中空状のキャビティ
を有するチューブを成型し、望ましい位置に接続バルブ
を取付ける。(1) Cut an unvulcanized rubber sheet of a predetermined thickness into a regular (2n+1) square shape with one side length, prepare two sheets, and powder them with talc or the like to form a hollow shape using a known method. Mold the tube with the cavity and install the connecting valve at the desired location.
（２） 次に、あらかじめゴム引されたすだれ織物を
巾Ｗ ＝ Ｌ Ｘ ｓｉｎ （セ旨Ｘ１８０）に裁断し
準備する。(2) Next, prepare a pre-rubberized blind fabric by cutting it into a width W = L x sin (length x 180).
第７図の実施例では、Ｌ二３００闘なので、Ｗ ＃ ２
８５１４７１とナル。In the example of FIG. 7, since it is L2 300 fights, W # 2
851471 and Naru.
（３）次に上記（１）で成形したチューブゴムと接続バ
ルブの一体化した未加硫物の一辺の近傍の平面上から上
記Ｗの巾のすだれ織物を初めの辺を含めずにｎ番目の辺
に向けて貼り合せる。(3) Next, from the plane near one side of the unvulcanized product formed in (1) above, where the tube rubber and the connecting valve are integrated, a blind fabric with a width of W is placed on the nth side, not including the first side. Paste it towards the edges.
第７図の実施例では、１辺の長さＬ＝３００ｍｍの正五
角形（ｎ ＝ ２ ）の場合、巾Ｗ ”＝ ２８５ ｍ
ｍのすだれ織物を辺１０の近傍の平面上から辺１０を含
めずにｎ ＝ ２番目の辺１２に向けて貼り合ぜる。In the example shown in FIG. 7, in the case of a regular pentagon (n = 2) with one side length L = 300 mm, the width W '' = 285 m
M blind fabrics are pasted together from a plane in the vicinity of side 10 toward n = second side 12, excluding side 10.
（４）次に、ｎ番目の辺、実施例では辺１２の辺にそっ
て前記すだれ織物を折り曲げ、側面を通って更に裏面に
折り曲げると、第７図の実施例の点線で示すように幾何
学的にコードの方向が決定し、折り曲げた辺１２を含め
ず再びｎ＝２番目の辺１４に自動的に向う。(4) Next, when the blind fabric is folded along the n-th side (side 12 in the example), passed through the side surface, and further folded to the back side, it forms a geometric shape as shown by the dotted line in the example of FIG. The direction of the cord is determined logically, and it automatically moves toward n=2nd side 14 again, excluding the folded side 12.
（５）以下、コードが多角形の辺に来た時折り曲げ折り
返すと、補強層は、連続して、全ての面を補強して行く
ので、全ての側面（第４図の０部分）が等しく２ｍ層（
ｍ層１）になった所で終了する。(5) When the cord reaches the side of the polygon, it is bent and folded back. Since the reinforcing layer continuously reinforces all sides, all sides (0 part in Figure 4) are equally 2m layer (
The process ends when the m layer 1) is reached.
（６） 次に、所定の厚さのカバーゴムを上記補強層
の上に貼る。(6) Next, cover rubber of a predetermined thickness is pasted on the reinforcing layer.
（力 ついで、公知の手段を用いて加硫し完了する。(Then, vulcanization is completed using known means.
」−記の製法によってつくられる本発明のゴム袋は、側
面近傍に継ぎ目がなく強度上の欠かんのない構造体とな
っているので、従来技術の欠点であった圧力下での側面
又は周縁部の破壊が防止出来ると共に側面が等しく一定
のコード角になっているので、タイヤや空気はねのいわ
ゆるバイアス構造と同一となり、ゴノ・袋が伸縮する場
合コード角の変化により、平均的に無理なく上下動に追
従出来るので耐久性に優れており、又、上下面は自由膨
張時に応力の最も集中する中央部程多層に強化されてい
るので、耐圧力を向上させる効果がある。The rubber bag of the present invention produced by the manufacturing method described above has a seamless structure in the vicinity of the side surfaces, which is essential for strength. In addition to preventing damage to the parts, the sides have an equal and constant cord angle, so it is the same as the so-called bias structure of tires and air splashes, and when the gono/bag expands and contracts, the cord angle changes on average. It has excellent durability because it can easily follow vertical movements, and the upper and lower surfaces are reinforced with multiple layers toward the center where stress is most concentrated during free expansion, which has the effect of improving pressure resistance.
また、上記の製法によれば、補強層を連続的にしかも正
確に成形出来、特別な周辺部の強化作業が不要となるの
で、必然的にばらつきが少なく、耐圧性、１１ｉ′１久
性のすぐれたゴム袋を安価に製作することが出来る。In addition, according to the above manufacturing method, the reinforcing layer can be molded continuously and accurately, and special reinforcement work for the surrounding areas is not required, so variations are inevitably small and pressure resistance and 11i'1 durability are improved. Excellent rubber bags can be manufactured at low cost.
以上の構造、製法上の一般的特徴を列挙すると、２ｎ＋
１． ｎ ＝ １．２．３・・・・・・の奇数正多角
形において、側面の補強層を２ｍ層（ｍ層１）に積層す
る場合、多角形の１辺の長さを１、とすれば、（１）
補強層の巾はＷ −Ｌ Ｘ ｓｉｎ （２ｎ’＋ 、
Ｘ １８０ ） となる。Listing the general characteristics of the above structure and manufacturing method, 2n+
1. In an odd regular polygon with n = 1.2.3..., when laminating the side reinforcement layer in 2 m layers (m layer 1), the length of one side of the polygon is 1. If, (1)
The width of the reinforcing layer is W - L X sin (2n'+,
X 180 ).
（２） ある辺の近傍から貼り始めた場合、補強層は
その辺を含めず、ｎ番目の辺に向ける。(2) When pasting starts near a certain side, the reinforcing layer does not include that side and is directed toward the n-th side.
（３）側面を２ｍ層積層した場合、上下面の中央部の層
数は、ｍ（２ｎ＋１）層となり、多角形の頂点を結ぶ線
分で囲まれた多角形は、中央から周辺に向うに従ってｍ
層づつ順次減少するような構造となる。(3) When 2m layers are stacked on the side surfaces, the number of layers at the center of the top and bottom surfaces is m(2n+1) layers, and the polygon surrounded by line segments connecting the vertices of the polygon grows from the center to the periphery. m
The structure is such that the number of layers decreases one after another.
（４） ２ｍ層に積層された側面のコード角は、−ぽ
−となる。(4) The cord angle of the side surface of the 2m layer is -Po-.
２ｎ＋１
次に、前述した正五角形の実施例 ｎ＝、２．ｍ＝１．
Ｌ二３００ｍｍのものをアラミド繊維１５００ｄ／３３
３エンドのすだれ織物で試作したものの特性曲線を第８
図に示す。比較のために、同一材料で製作した従来公知
の特公昭５５−２２３９９号に基づく１辺Ｌ ＝ ４０
０ ｍ＝の正四角形の特性も記載した。2n+1 Next, the above-mentioned regular pentagon example n=, 2. m=1.
L2 300mm aramid fiber 1500d/33
The characteristic curve of a prototype made of 3-end blind fabric is shown in the 8th figure.
As shown in the figure. For comparison, one side L = 40 based on the conventionally known Japanese Patent Publication No. 55-22399 made of the same material.
The characteristics of a square with 0 m= are also described.
各々の平面積が前者が１５５０ｍ、後者が１６００ ｃ
ｉであることから、第８図に示すように両者の特性上の
差異は認められなかった。The planar area of each is 1550 m for the former and 1600 c for the latter.
As shown in FIG. 8, no difference in characteristics between the two was observed.
一方、これら構造体をいづれの面も拘束しない自由な状
態で破壊テストを実施した所、本実施例は圧力５５〜で
補強層が最も多層化された第４図のＯの部分が破壊した
が、前記公知の四角形構造体は、圧力２０勢で補強層を
折返し重ね合せた部分（本実験に用いたものは６０ｍｍ
のオーバーラツプを取った）が抜けて破壊に至り、この
ものがその重ね合せた強化部分になお弱点が存在してい
ることがわかった。On the other hand, when a destructive test was performed on these structures in a free state without restraint on any surface, in this example, the part O in Fig. 4, where the reinforcing layers were the most multilayered, was destroyed at a pressure of 55~. , the above-mentioned known rectangular structure is formed by folding and overlapping reinforcing layers under a pressure of 20 mm (the one used in this experiment has a thickness of 60 mm).
It was discovered that there was still a weak point in the strengthened parts of this thing.
以上説明したように本発明のゴム袋は、側面近傍に強度
上の欠かんのない構造体となっているので、圧力により
側面部分で破壊することがなく、また、側面が全て等し
い角度のコードで補強出来るので上下の伸縮に対しコー
ドの角度変化により無理なく追従出来るので耐久性にす
ぐれており、さらに上下面は自由膨張時応力の最も集中
する中央部分が最も多く強化されているので、耐圧力を
向上させる効果がある。As explained above, the rubber bag of the present invention has a structure near the side surfaces that is essential for strength, so the side surfaces do not break due to pressure, and the sides are all made of cords with equal angles. Since the upper and lower expansion and contraction can be easily followed by changes in the angle of the cord, it has excellent durability.Furthermore, the upper and lower surfaces are reinforced the most in the central part where stress is most concentrated during free expansion, making it highly durable. It has the effect of increasing pressure.
また、奇数正多角形の形状をしているので補強層を極め
て容易に、しかも正確に連続して積層１１）来るので、
品質−ヒのバラツキが少ない製品を安価に提供すること
が出来る利点もある。In addition, since it has an odd regular polygonal shape, the reinforcing layer can be laminated extremely easily and accurately in succession (11).
There is also the advantage that products with less variation in quality can be provided at low cost.
第１図は本発明に係わるゴム袋の一例の平面図、第２図
はその側面図、第３図は第１図のＡ−Ａ線一部切欠断面
説明図である。第４図、第５図は、補強層の配置状況を
示す説明図、第６図は本発明に係わるゴム袋の一例の使
用状況を示す説明図である。第７図は本発明に係わるゴ
ム袋の一例の製造に際してチューブゴムに補強層を積層
させる方法を示す説明図、第８図は本発明に係わるゴム
袋の一例と従来のゴム袋とについて使用する場合の荷重
（トン）と揚程（Ｃｒｎ）との関係をグラフで示した説
明図である。
Ｒ・・・ゴム袋、１・・・チューブゴム、２・・・補強
層、６・・・カバーゴム、４・・・接続バルブ、５・・
・破支持物体。
（１１）
恢 綜FIG. 1 is a plan view of an example of a rubber bag according to the present invention, FIG. 2 is a side view thereof, and FIG. 3 is a partially cutaway cross-sectional view taken along the line A--A in FIG. 1. FIGS. 4 and 5 are explanatory diagrams showing the arrangement of the reinforcing layer, and FIG. 6 is an explanatory diagram showing the usage of an example of the rubber bag according to the present invention. FIG. 7 is an explanatory diagram showing a method of laminating a reinforcing layer on tube rubber when manufacturing an example of a rubber bag according to the present invention, and FIG. 8 is an explanatory diagram showing an example of a rubber bag according to the present invention and a conventional rubber bag. FIG. 2 is an explanatory diagram showing a graph of the relationship between the load (tons) and the lift height (Crn) in the case of FIG. R...Rubber bag, 1...Tube rubber, 2...Reinforcement layer, 6...Cover rubber, 4...Connection valve, 5...
- Broken support object. (11) 恢綜
Claims (1)
ーブゴムと、それに積層した、スチールコードあるいは
繊維コードを縦方向に引きそろえた補強層と、この補強
層を被覆したカバーゴムとからなり、かつ、圧力源と連
結するだめの接続パルプを有するゴム袋において、ゴム
袋全体が平面的にほぼ奇数正多角形（（２１１＋１）角
形、ｎ＝１．２．３・・・・・・〕をなしていて、その
（２ｎ＋１）個の側面の近傍ではつなぎ目のない少なく
とも２層以上〔２ｍ層以上、ｍ≧１〕の偶数層の前記補
強層がその層内のコードの交角を等しく １８０”／（
２ｎ＋１）とするように配置され、また、（２ｎ＋１）
角形をした上下の面では前記補強層が中心付近でｍ（２
ｎ＋１）層、その外側でｍ（２ｎ＋１−１）と中心から
離れるにつれて順次ｍ層ずつ減少していることを特徴と
するゴム袋の構造。[Scope of Claims] A tube rubber that keeps fluid airtight in a cavity formed inside, a reinforcing layer laminated thereon in which steel cords or fiber cords are aligned vertically, and a cover rubber covering this reinforcing layer. In a rubber bag having a connecting pulp connected to a pressure source, the entire rubber bag has an approximately odd regular polygon ((211+1) polygon, n=1.2.3... ...], and in the vicinity of its (2n+1) side surfaces, at least two or more seamless layers (2m or more, m≧1) of even-numbered reinforcing layers adjust the intersection angle of the cords within that layer. Equally 180”/(
2n+1), and (2n+1)
On the upper and lower sides of a rectangular shape, the reinforcing layer has a thickness of m(2) near the center.
A structure of a rubber bag characterized by having n+1) layers, and m(2n+1-1) layers on the outside thereof, and the number of layers decreases by m layers as the distance from the center increases.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57146780A JPS5937347A (en) | 1982-08-26 | 1982-08-26 | Structure of rubber bag |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57146780A JPS5937347A (en) | 1982-08-26 | 1982-08-26 | Structure of rubber bag |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5937347A true JPS5937347A (en) | 1984-02-29 |
| JPS6246737B2 JPS6246737B2 (en) | 1987-10-05 |
Family
ID=15415362
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57146780A Granted JPS5937347A (en) | 1982-08-26 | 1982-08-26 | Structure of rubber bag |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5937347A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634721A (en) * | 1994-03-17 | 1997-06-03 | Nampak Products Limited | High pressure bag |
-
1982
- 1982-08-26 JP JP57146780A patent/JPS5937347A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5634721A (en) * | 1994-03-17 | 1997-06-03 | Nampak Products Limited | High pressure bag |
| US5683182A (en) * | 1994-03-17 | 1997-11-04 | Nampak Products Limited | High pressure bag |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6246737B2 (en) | 1987-10-05 |
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