JPS609735A - Forming method of slip preventing groove of position of clamping metal fitting on end part of molded rubber hose - Google Patents

Forming method of slip preventing groove of position of clamping metal fitting on end part of molded rubber hose

Info

Publication number
JPS609735A
JPS609735A JP11924983A JP11924983A JPS609735A JP S609735 A JPS609735 A JP S609735A JP 11924983 A JP11924983 A JP 11924983A JP 11924983 A JP11924983 A JP 11924983A JP S609735 A JPS609735 A JP S609735A
Authority
JP
Japan
Prior art keywords
cylindrical
molded
cap
rubber hose
rubber member
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
JP11924983A
Other languages
Japanese (ja)
Other versions
JPH0367008B2 (en
Inventor
Teiji Sugimoto
杉本 貞次
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 Riko Co Ltd
Original Assignee
Sumitomo Riko 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 Sumitomo Riko Co Ltd filed Critical Sumitomo Riko Co Ltd
Priority to JP11924983A priority Critical patent/JPS609735A/en
Priority to FR8410235A priority patent/FR2548086B1/en
Publication of JPS609735A publication Critical patent/JPS609735A/en
Publication of JPH0367008B2 publication Critical patent/JPH0367008B2/ja
Granted legal-status Critical Current

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C53/00Shaping by bending, folding, twisting, straightening or flattening; Apparatus therefor
    • B29C53/02Bending or folding
    • B29C53/08Bending or folding of tubes or other profiled members
    • B29C53/083Bending or folding of tubes or other profiled members bending longitudinally, i.e. modifying the curvature of the tube axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29CSHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C57/00Shaping of tube ends, e.g. flanging, belling or closing; Apparatus therefor, e.g. collapsible mandrels
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2021/00Use of unspecified rubbers as moulding material
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29KINDEXING 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
    • B29K2105/00Condition, form or state of moulded material or of the material to be shaped
    • B29K2105/24Condition, form or state of moulded material or of the material to be shaped crosslinked or vulcanised
    • B29K2105/246Uncured, e.g. green
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B29WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29LINDEXING SCHEME ASSOCIATED WITH SUBCLASS B29C, RELATING TO PARTICULAR ARTICLES
    • B29L2023/00Tubular articles
    • B29L2023/22Tubes or pipes, i.e. rigid

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Moulds For Moulding Plastics Or The Like (AREA)
  • Shaping Of Tube Ends By Bending Or Straightening (AREA)

Abstract

PURPOSE:To form effectively a slip preventing part of a position on an end part of a molded rubber hose at low cost, by a method wherein an end part of a cylindrical rubber component is pushed in between a cylindrical molded cap having a recessed groove on an inner circumferential surface and an outer circumferential surface of a core body of a mandrel, and vulcanized under a state wherein an outer circumferential surface of the cylindrical rubber component is swollen up. CONSTITUTION:A cylindrical rubber component 4 which has been made easy to deform by preheating is inserted into a core body 11 of a mandrel, and an end part of the cylindrical rubber component 4 is pushed in between an inner circumferential surface of a cylindrical molded cap 12 and an outer circumferential surface of the core body 11 of the mandrel until it reaches to an inside edge 17 of the cylindrical molded cap 12. Under a state wherein the cylindrical rubber component 4 is pressed a cylindrical positioning cap 13 and a positioning protrusion 16 are made to fix by fitting them in the other end side of the core body 11 of the mandrel and a positioning recessed part 15 of the core body 11 of the mandrel respectively. With this construction, it becomes that the outer circumferential surface of the cylindrical rubber component 4 is swollen up into recessed grooves 12a, 12a on the inner circumferential surface of the cylindrical molded cap 12, to which vulcanizing operation is applied under such circumstances.

Description

【発明の詳細な説明】 本発明は成形ゴム十−ヌの端部にクランプ用金具の位置
ずれ防止溝を形成する方法にr糸る。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method of forming a groove for preventing displacement of a clamp fitting at the end of a molded rubber neck.

従来、この挿の成形ゴムホースの端部にクランプ金具用
の位置ずれ防1ヒ溝を形成するには、ゴJ・部材を加圧
成型するだめの金型と加硫フ゛レスが用いられる。金型
は成形ゴムホースを成型するだめの中イ金型とト下2個
の分割金型を有し、該分割金型にクランプ′金具用の位
置ずれ防止溝をセ喫する凸部が設けてあり、この金型を
加硫プレスに配置し、ゴム部材を金型に注入せしめると
共1(、加圧し、且つ、加熱してなる成形ゴムホースの
製造方法に因る成型ゴムホースの端部にクランプ金具用
の位置ずれ防止溝を形成する方法である。
Conventionally, in order to form a displacement-preventing groove for a clamp fitting at the end of a molded rubber hose, a mold and a vulcanized resin are used to pressurize the rubber hose. The mold has a middle mold for molding the molded rubber hose and two split molds at the bottom, and the split mold is provided with a convex part that connects the positional displacement prevention groove for the clamp fitting. , This mold is placed in a vulcanization press, and a rubber member is injected into the mold. This is a method of forming a misalignment prevention groove for

しかしながら、前記従来の方法では、金)(uの分解組
立に多くの労力と時間を要すると共に、プレス加硫では
熱エネ7レギーの消費が大となり、コストアンプになる
欠点を有している。
However, the conventional method has disadvantages in that it requires a lot of labor and time to disassemble and assemble the metal, and press vulcanization consumes a large amount of thermal energy, which increases the cost.

本発明はかかる事情に鑑み発明されたもので。The present invention was invented in view of such circumstances.

金型と加硫プレスを用いて、成形ゴムホースを製造する
方法に因るクランプ金具用の位置ずれ防止溝を形成する
方法ではなく、成形ゴムホースの端部にクランプ金具用
の位置ずれ防止溝を有するゴムホースを、低コストで製
造することを目的とし。
Instead of using a mold and a vulcanization press to form a groove for preventing displacement of a clamp fitting, which is the method of manufacturing a molded rubber hose, we have a groove for preventing displacement of a clamp fitting at the end of a molded rubber hose. The aim is to manufacture rubber hoses at low cost.

この目的を達成するために1本発明は、管状に押出され
たゴム中袋を切断せしめて成形ゴムホースとなる筒状ゴ
ム部材を製し、該筒状ゴム部材はマントIJ A/芯体
に挿入せしめて用いられ、前記マンドリル芯体の一端側
には位置ずれ防止溝を形成する固定形の筒状成型キャッ
プを有し、他端には取外し可能形の筒状位置決めキャッ
プを有す、前記筒状ゴム部材は予熱されると共に、マン
ト11 、)し芯体の成型キャップ側に向って挿入され
、且つ、圧迫されて配置し1位置決めキャンプで固定さ
れて後、加@11缶加硫してなる成形ゴムホースの製造
方法に因ることを特徴とする成形ゴムホースの端部にク
ランプ金具用の位置ずれ防止溝を形成する方法を提供す
ることにある。
In order to achieve this object, the present invention involves cutting an extruded rubber inner bag into a tubular shape to produce a cylindrical rubber member that becomes a molded rubber hose, and inserting the cylindrical rubber member into a mantle IJ A/core body. The mandrel core has a fixed cylindrical molded cap forming a positional displacement prevention groove on one end side and a removable cylindrical positioning cap on the other end. The shaped rubber member is preheated, inserted toward the molded cap side of the core body, compressed and placed, and fixed in one positioning camp, and then vulcanized at 11 cans. It is an object of the present invention to provide a method for forming a displacement prevention groove for a clamp fitting at an end of a molded rubber hose, which is characterized by being based on a method of manufacturing a molded rubber hose.

以下0本発明の実施例を第1図乃至第41¥1に基づい
て説明する。第1図は曲管ゴムホースの一端に、クラン
プ用金具の位置ずれ防止溝(以下単に位置ずれ防止溝と
述べる)(3)’e有する成形ゴムホース(1)である
。該吠形ゴムホース(1)の先端部と間隔を隔てて断面
略半円形の***部(2)を2個設け、その間にできた浅
い凹部が位置ずれ防止溝(3)である。
Embodiments of the present invention will be described below based on FIGS. 1 to 41. FIG. 1 shows a molded rubber hose (1) having, at one end of the curved rubber hose, a groove for preventing displacement of a clamp fitting (hereinafter simply referred to as a groove for preventing displacement) (3)'e. Two protuberances (2) having a substantially semicircular cross section are provided at a distance from the tip of the barb-shaped rubber hose (1), and a shallow recess formed between them is a displacement prevention groove (3).

前記位置ずれ防止溝(3)を形成する方法であって、第
2図に示すように、管状に押出されたゴム中袋を切断せ
しめて、成形ゴムホース(1)となる筒状ゴム部材(4
)を製し、該筒状ゴム部利(4)は第3図乃至第4図に
示すように、マントリ/し芯体(11)に挿入せしめ用
いられる。
As shown in FIG. 2, the method for forming the displacement prevention groove (3) involves cutting a rubber inner bag extruded into a tubular shape to form a tubular rubber member (4) that becomes a molded rubber hose (1).
), and the cylindrical rubber part (4) is used by being inserted into the mantle/shield core (11) as shown in FIGS. 3 and 4.

マンドリル芯体(11)の一端には成形ゴムホース(,
1)の端部に位置ずれ防止溝(3)を形成する筒状成型
キャップ(12)を有し、マンドリル芯体(11)に対
して固着されている。又成型キャップ(12)fd成形
ゴムホース(1)の端部に位置ずれ防止溝(3)を形成
するだめの断面略半円形の股部(12a、)を、内周面
(で間隔を隔てて2個有している。
A molded rubber hose (,
1) has a cylindrical molded cap (12) forming a displacement prevention groove (3) at the end thereof, and is fixed to the mandrill core (11). In addition, the molded cap (12) has a crotch portion (12a,) with a substantially semicircular cross section forming a displacement prevention groove (3) at the end of the fd molded rubber hose (1), with the inner peripheral surface (at intervals) I have two.

一方、マンドリル芯体(11)の他端には取外し可能形
の筒状位置決めキャップ(13)を具備し、該位置決め
キャップ(13)は、マントII tし芯体(11) 
IF−設けた位置決め四部(15)に対応する位置決め
凸部(16)を有している。
On the other hand, the other end of the mandrill core (11) is equipped with a removable cylindrical positioning cap (13), and the positioning cap (13) is attached to the mandrel core (11).
IF- has positioning protrusions (16) corresponding to the four positioning parts (15) provided.

先ず1位置決めキャップ(13)を取外した状態で。First, with the 1 positioning cap (13) removed.

予熱せしめた筒状ゴム部材(4)を即マントIJ 7し
芯体(11)の成型キャップ(12)側に向って(第3
図矢印方向)挿入せしめ、成型キャップ(12)の端(
17)まで押し込む、さらに力を加えて管状ゴム部材(
4)を圧迫し、且つ、圧迫した状態で成型キャップ。
Immediately place the preheated cylindrical rubber member (4) in the cape IJ 7 and place it on the core body (11) toward the molded cap (12) side (third
Insert the end of the molded cap (12) (in the direction of the arrow in the figure).
17), then apply further force to remove the tubular rubber member (
4) Press and mold the cap in a compressed state.

(12)を位置決め位置(マンドリル芯体(11)設け
た位置決めの凹部(15)に、成型キャップの有する位
置決め凸部(16)が嵌る所)で固定される。しかる後
、加硫缶内に投入され、蒸電圧が加わり、筒状ゴム部材
(4)は加硫されて成形ゴムホース(1)トなす、成形
ゴムホースの片側端部は位置ずれ防止溝(3)が形成さ
れる。
(12) is fixed at the positioning position (where the positioning convex part (16) of the molded cap fits into the positioning recess (15) provided in the mandrill core (11)). After that, it is placed in a vulcanizing can, a steaming voltage is applied, and the cylindrical rubber member (4) is vulcanized to form a molded rubber hose (1). One end of the molded rubber hose has a groove to prevent displacement (3). is formed.

管状ゴム部材(4)の材料は用途に応じて適宜法められ
、この実施例では耐ガソリン性を考慮してニトリルゴム
が用いられている。又管状ゴム部材(4)の内径(48
尼φ)はマントリ)し芯体(11)径(50龍φ)より
小となっている。これけ加酸時に成形ゴムホースの外周
面に生ずる皺を防止する効果がある。又筒状ゴム部材(
4)を熱風炉に入れて65°Cに予々さする必要がある
。このことはマンドリフし芯体(11)に管状ゴム一部
伺(4)を挿入し易くすると共に、1戊型キヤツプ(I
2)の内周面に筒状ゴム部材(4)の端部が挿入し易い
ようにするためである。即ち、筒状ゴム部材(4)の外
径(52顧φ)は成型キャップ(12)の内径(50履
φ)より大であるからで、ちり、又成型ギャップ(12
)と位置決めキャップ(13)の各々箭1状ゴム部材挿
入口には大きな面取(18)、 (19)が設けてあり
、筒状ゴム部材(4)が挿入し易くなされている。又筒
状ゴム部利(4)の長さく280■)は成形ゴムホース
の長さく226羽)より大である。
The material for the tubular rubber member (4) is determined as appropriate depending on the application, and in this embodiment, nitrile rubber is used in consideration of its gasoline resistance. In addition, the inner diameter (48
The diameter of the core body (11) is smaller than the diameter of the core (11) (50 mm). This has the effect of preventing wrinkles from forming on the outer peripheral surface of the molded rubber hose during acidification. In addition, a cylindrical rubber member (
4) must be placed in a hot air oven and heated to 65°C in advance. This makes it easier to insert the tubular rubber part (4) into the core body (11) by mandriving, and also makes it easier to insert the tubular rubber part (4) into the core body (11).
This is to make it easier to insert the end of the cylindrical rubber member (4) into the inner circumferential surface of (2). That is, since the outer diameter (52mm) of the cylindrical rubber member (4) is larger than the inner diameter (50mm) of the molded cap (12), dust and molding gaps (12mm)
) and the positioning cap (13), each of which has a large chamfer (18), (19) in the slot for inserting the cylindrical rubber member (19) to facilitate insertion of the cylindrical rubber member (4). Also, the length of the cylindrical rubber part (4), 280 cm), is greater than the length of the molded rubber hose, 226 cm).

マントIJ )し芯体(11)及び成型キャッf(12
)044判としてはステンレス鋼が望斗しいが、限定さ
れること1寸なく、軟鋼を用いてクロムメッキを施して
もよい。尚、成型キャップ(12)の内周面にある股部
(12a)2個の深さFil、5gになされているか限
定されることはない。しかし、深すぎると成形ゴムホー
ス(1)側に形成される***部(2)が不完全になる。
Cloak IJ) core body (11) and molded cap f (12
) Stainless steel is preferable for the 044 size, but there is no limitation and mild steel may be used and chrome plated. It should be noted that there is no limitation on whether the two crotches (12a) on the inner circumferential surface of the molded cap (12) have a depth Fil of 5g. However, if it is too deep, the protuberance (2) formed on the molded rubber hose (1) side will be incomplete.

このため筒状ゴム部材(4)の材質、厚み等により影響
を受けるので股部(12a)の深さは1.0〜1.5贋
で工夫しながら調整し、成形ゴムホース(1)の***部
(2)の高さi 0.7〜1.2mに成形するのが望ま
しい。
This is affected by the material, thickness, etc. of the cylindrical rubber member (4), so the depth of the crotch part (12a) should be adjusted by using 1.0 to 1.5 mm, and the raised part of the molded rubber hose (1). It is desirable to form the part (2) to a height i of 0.7 to 1.2 m.

位置決めキャップ(13)はこの実施例ではゴム製を用
いているが、限定されることはなく1位置決め位置で容
易に固定され且つ取外しが簡単な構造であればたりる。
Although the positioning cap (13) is made of rubber in this embodiment, it is not limited to this, and any structure can be used as long as it can be easily fixed at one position and easily removed.

又他の実施例として1位置決めキャップ側にも1位置ず
れ防止溝を形成するための股部を、内角面に間隔を隔て
て2個設けて、成形ゴムホースの両端部に位置ずれ防止
溝を形成するようにしても差支えない。
In another embodiment, two crotches for forming a positional displacement prevention groove are provided on the inner corner surface at a distance from each other on the side of the positioning cap, and positional displacement prevention grooves are formed at both ends of the molded rubber hose. There is no harm in doing so.

次に本発明の位置ずれ防止溝を形成する方法の作用効果
について説明する。管状ゴム部材(4)Id成型マンド
リル(11)に挿入する直前まで予熱されるので、管状
ゴム部材(4)は軟かく、それ故にマントI)1し芯体
(11)への挿入が容易であると共に。
Next, the effects of the method of forming the misalignment prevention groove of the present invention will be explained. Since the tubular rubber member (4) is preheated until just before it is inserted into the molding mandrel (11), the tubular rubber member (4) is soft and therefore easy to insert into the mandrel (1) and the core body (11). Along with being.

成型ギャップ(12)の内径が筒状ゴム部材(4)の夕
)径より微小であ−)でも成型キャップ(12)への挿
入が可能となり、さらに管状ゴム部材(4)を[戊カν
ギャンプ(12) 4.111方向−\の圧迫して1位
置’f、!4、めキャンプ(13)を位置決め位置で固
定が可能となる。このように憤・状ゴム部材(4)l/
C内部応力f、!:T−えた状だ1でで加Φ1を缶に投
入して、熱と外圧を加えると、′に状ゴム部材(4)け
T、i型キャンプ(12)側へのコ゛ム流れが良ぐなり
1代!IL(キャップ(12)の内角面に設・けである
l′之部(12a)ヘコ゛ムが流れ込むと用に、I戊!
i’Q +!gヤソフ”(12)内での11≦、゛状ゴ
ム部材(4)の内部応力が増加し、前記股部(z2a)
 ?−!成形ゴムホース(1)として一体加硫成形され
る。即ち、成形ゴムホース(1)の端部に位「tt″れ
防止溝を形成することができる。
Even if the inner diameter of the molding gap (12) is smaller than the diameter of the tubular rubber member (4), it can be inserted into the molding cap (12).
Gamp (12) 4. Press in 111 direction -\ to 1 position 'f,! 4. The camp (13) can be fixed at a position. In this way, the rubber member (4) l/
C internal stress f,! :Put Φ1 into the can with T-shape 1 and apply heat and external pressure to improve the flow of the comb to the T-shaped rubber member (4) and the T-shaped camp (12). The first generation! When the IL (l' part (12a), which is provided on the inner corner surface of the cap (12)) flows into the hem, the I-hole!
i'Q+! 11≦ in the crotch portion (z2a), the internal stress of the ゛-shaped rubber member (4) increases, and the crotch portion (z2a)
? -! It is integrally vulcanized and molded as a molded rubber hose (1). That is, a "tt" anti-slip groove can be formed at the end of the molded rubber hose (1).

上述の如き位7(tずれ防止肩を形成する方法は。The method of forming the anti-slip shoulder is as described above.

成型用金型と加硫プレスに因る位置ずれ防止溝を形成す
る方法よりも安価である。尚この実′IIH5例では成
形ゴムホースは平面的な曲管ホースであるか。
This method is cheaper than the method of forming misalignment prevention grooves using a molding die and a vulcanization press. In this case, is the molded rubber hose a flat curved hose?

自動即用ホース等では立体的な曲管ホースが多く。Many automatic ready-use hoses are three-dimensional curved hoses.

成型用金型と加硫プレスで成型する成形ゴムホースの製
造方法でr/i成形ゴムホースを形成すること自体が困
帷となり、このような立体的な曲ゝζCの成形ゴムホー
スには、なおさら、利用価値lt大となる。
It is difficult to form an R/I molded rubber hose using the manufacturing method of a molded rubber hose that is molded using a molding die and a vulcanization press, and it is even more difficult to make a molded rubber hose with a three-dimensional curve of ζC. It will be of great value.

4、簡単な図面の説明 第1図はホースの端部にフラング用金具の位置ずれ防止
溝を有する成形ゴムホースの一部分を断面で示した正面
図、第2図は筒状ゴム部材の斜視図、第3図はマンドリ
ル芯体に筒状ゴム部材を挿入せしめた縦断面図、第4図
はマンドリル芯体に筒状ゴム部材を挿入せしめ、且つ、
圧縮して位置決めキャップ°で固定した状態を示す縦断
面図である。
4. Brief description of the drawings Figure 1 is a front view showing a section of a part of a molded rubber hose having a groove for preventing displacement of the flang fitting at the end of the hose, Figure 2 is a perspective view of a cylindrical rubber member, FIG. 3 is a longitudinal cross-sectional view of a cylindrical rubber member inserted into a mandrill core, and FIG. 4 is a longitudinal sectional view of a cylindrical rubber member inserted into a mandrill core, and
FIG. 3 is a longitudinal cross-sectional view showing a state in which it is compressed and fixed with a positioning cap.

1・・・・・・成形コムホース、2・・・・・・+s起
i、3・・・・・・位置ずれ防止溝、4・・・・・・筒
状ゴム部材、11・・・・・・マンドリル芯体、12・
・・・・・成型キャップ、13・・・・・・位置決めキ
ャンプ、15・・・・・・位置決め凹部。
DESCRIPTION OF SYMBOLS 1... Molded comb hose, 2... +s i, 3... Misalignment prevention groove, 4... Cylindrical rubber member, 11...・・Mandrill core body, 12・
...Molded cap, 13...Positioning camp, 15...Positioning recess.

16・・・・・・位置決め凸部、17・・・成型キャッ
プの端。
16...Positioning convex portion, 17...End of molded cap.

■ 第2図 手続補正帯(自発) 昭和58年 ?月2δ日 1事件の表示 特願昭58−119249号 2発明の名称 3補正をする者 事件との関係(特許出願人) 郵便番号 485 明細書の「発明の詳細な説明の欄」及び「図面の簡単な
説明の欄」 (1)「発明の詳細な説明」の欄 明細書第2頁12行目「成型」を削除し、「成形」と訂
正する。
■ Figure 2 Procedural Correction Band (Voluntary) 1981? Month 2 δ Day 1 Indication of the case Japanese Patent Application No. 119249/1982 2 Name of the invention 3 Person making the amendment Relationship with the case (patent applicant) Postal code 485 ``Detailed description of the invention column'' and ``Drawings'' in the specification (1) In the "Detailed Description of the Invention" column, on page 2, line 12 of the specification, "molding" is deleted and corrected to "molding."

(2)「図面の簡単な説明」の欄 以上 手続補正書く自発) Sぜメ 昭和59年1月281Y 特許庁長官 若杉 和犬 殿 1、事件の表示 昭和58年 特許願 第119249号2、発明の名称 3、?!正を1ノ者 事件との関係 特許出願人 名 称 東海ゴム工業株式会社 4、代理人■450 (1) 明細書全文 (2) 図面 6、補正の内容 全文訂正明細書 1、発明の名称 成形ゴムホースの端部にクランプ用金具の位置ずれ防止
部を形成する方法 2、特許請求の範囲 +11 成形ゴムホースの曳左左上玉二方(2)端部」
血(掲 ロの を云けて、クランプ朋金其の位置ずれ防
止皿を形成する方法にして、管状に押ρ出されたゴム 
゛ をL して、m材m硫4」1なづ−ことを特徴とす
る成形ゴムホースの端部にクランプ朋金具の位置ずれ防
止皿を形成する方法。
(2) Voluntary amendment to the "Brief explanation of the drawings" section) Szeme January 1981 281 Y Patent Office Commissioner Wakasugi Wainu 1, Indication of the case 1982 Patent Application No. 119249 2, Invention Name 3,? ! Relationship with the 1st party case Patent applicant name Name Tokai Rubber Industries Co., Ltd. 4, agent ■ 450 (1) Full text of the specification (2) Drawing 6, full text of the amendment Corrected specification 1, Name of the invention Molded rubber hose Method 2 of forming a displacement prevention part of a clamp fitting at the end of a molded rubber hose
In order to form the anti-slip plate of the clamp, extruded rubber into a tubular shape is used.
A method for forming a misalignment prevention plate for a clamp fitting at the end of a molded rubber hose, characterized in that L is made of m material and m sulfur is 4'.

る − −の 1 − 3 の醇れ 左佳l改威9ブnk。ru - - no 1 - 3 mellowness Saikal Kaiwei 9bnk.

3、発明の詳細な説明 本発明は、成形ゴムホースの端部にクランプ用金具の位
置ずれ防止部を形成する方法に係り、特に成形ゴムホー
スの少なくとも一方の端部外周面に周方向の突条を設け
て、クランプ用金具のための位置ずれ防止部を形成する
ようにした方法に関するものである。
3. Detailed Description of the Invention The present invention relates to a method for forming a displacement prevention portion for a clamp fitting at an end of a molded rubber hose, and in particular, a method for forming a circumferential protrusion on the outer peripheral surface of at least one end of a molded rubber hose. The present invention relates to a method for forming a displacement prevention portion for a clamp fitting.

従来から、この種の成形ゴムホースにあっては、その端
部に周方向の突条を設けて、かかる端部外周面に嵌着さ
れるクランプ用金具の位置ずれを阻止するようにした位
置ずれ防止部を形成するために、ゴム部材を加圧成形す
るための金型と加硫プレスが用いられている。かかる金
型は、成形ゴムボースを成形するための中子金型と上下
2個の分割金型を有しており、また該分割金型には、ク
ランプ用金具のための位置ずれ防止部を構成する突条を
成形するための凹部が設けられている。そして、このよ
うな金型を用いて成形ゴムホースを製造するに際しては
、先ず、該金型を加硫プレスに配置し、次いで所定のゴ
ム材料をかかる金型に注入せしめると共に、加圧し且つ
加熱することによって加硫成形せしめ、以て目的とする
成形ゴムホースを形成せしめると共に、かかるホースの
端部に所定のクランプ用金具の位置ずれ防止部を形成す
るようになっている。
Conventionally, this type of molded rubber hose has been provided with circumferential protrusions on its ends to prevent misalignment of clamp fittings fitted to the outer peripheral surface of the ends. In order to form the prevention portion, a mold and a vulcanization press are used for pressure-molding the rubber member. This mold has a core mold for molding the molded rubber boss and two divided molds, upper and lower, and the divided mold includes a displacement prevention part for the clamp fitting. A recess is provided for forming a protrusion. When manufacturing a molded rubber hose using such a mold, the mold is first placed in a vulcanizing press, and then a prescribed rubber material is injected into the mold, and is pressurized and heated. As a result, the desired molded rubber hose is formed by vulcanization molding, and at the same time, a displacement prevention portion for a predetermined clamp fitting is formed at the end of the hose.

しかしながら、かかる従来の方法では、金型の分解と組
立に多くの労力と時間を要すると共に、加硫プレスを用
いる加硫手法を採用するために、熱エネルギーの消費が
大となる等の問題があり、目的とする位置ずれ防止部を
有する成形ゴムホースを得るに際して、そのコストアッ
プを招く各種の問題を内在している。
However, this conventional method requires a lot of labor and time to disassemble and assemble the mold, and also has problems such as a large amount of thermal energy consumption due to the vulcanization method using a vulcanization press. However, when obtaining a molded rubber hose having the intended displacement prevention portion, there are various problems that increase the cost.

本発明は、かかる事情を背景にして為されたものであっ
て、その目的とするところは、従来の如き、金型と加硫
プレスを用いた成形ゴムホースを製造する手法に従うク
ランプ用金具の位置ずれ防止部の形成方法とは全く異な
る手法によって、目的とする成形ゴムホースの端部に、
クランプ用金具のための位置ずれ防止部を、低コストに
て効果的に形成し得る方法を提供することにある。
The present invention has been made against this background, and its purpose is to position clamp fittings according to the conventional method of manufacturing a molded rubber hose using a mold and a vulcanizing press. By using a method completely different from the method used to form the slippage prevention part, the end of the desired molded rubber hose is
It is an object of the present invention to provide a method for effectively forming a displacement prevention part for a clamp fitting at low cost.

そして、本発明にあっては、かかる目的を達成するため
に、成形ゴムホースの少なくとも一方の端部外周面に周
方向の突条を設けて、クランプ用金具の位置ずれ防止部
を形成する方法において、管状に押し出されたゴム筒状
体を切断して、成形ゴムホースとなる筒状ゴム部材を形
成せしめ、次いでかかる筒状ゴム部材を所定のマンドレ
ル芯体に嵌挿せしめると共に、該マンドレル芯体の少な
くとも一方の端部に設けた、前記突条を成形する凹溝を
内周面に有する筒状成型キャップと、前記マンドレル芯
体の外周面との間に、前記筒状ゴム部材の端部を押し込
み、そして該筒状成型キャップの凹溝内に該筒状ゴム部
材の外周面を盛り上がらせ、更にかかる筒状ゴム部材の
外周面の盛上り状態下において該筒状ゴム部材の加硫を
行なうようにしたのである。
In order to achieve this object, the present invention provides a method of forming a positional displacement prevention portion of a clamp fitting by providing a circumferential protrusion on the outer circumferential surface of at least one end of a molded rubber hose. The extruded rubber cylindrical body is cut to form a cylindrical rubber member that will become a molded rubber hose, and then the cylindrical rubber member is fitted into a predetermined mandrel core, and the mandrel core is The end of the cylindrical rubber member is placed between a cylindrical molded cap, which is provided on at least one end and has a concave groove on the inner periphery for forming the protrusion, and the outer periphery of the mandrel core. The outer circumferential surface of the cylindrical rubber member is pushed into the concave groove of the cylindrical molded cap, and the cylindrical rubber member is vulcanized while the outer circumferential surface of the cylindrical rubber member is in a raised state. That's what I did.

以下、本発明の構成を更に具体的に明らかにするために
、本発明の実施例を第1図〜第4図に基づいて説明する
こととする。
DESCRIPTION OF THE PREFERRED EMBODIMENTS In order to clarify the structure of the present invention more specifically, embodiments of the present invention will be described below with reference to FIGS. 1 to 4.

まず、第1図は、本発明に従って得られる成形ゴムホー
ス1の一例を示すものであって、かかる成形ゴムホース
1は、曲管ゴムホースの端部の外周面に、二条の突条2
,2にて囲まれたクランプ用金具の位置ずれ防止部(以
下、単に位置ずれ防止部という)3が形成された構造と
なっている。
First, FIG. 1 shows an example of a molded rubber hose 1 obtained according to the present invention.
, 2 (hereinafter simply referred to as a displacement prevention section) 3 of the clamp fitting is formed.

換言すれば、成形ゴムホース1の端部において、該ゴム
ホース1の軸方向に、ホース先端部とそれから所定の距
離を隔てて、断面略半円形の***部からなる突条2,2
が周方向に二条設けられており、またそれら突条2.2
の間に形成された浅い凹部(若しくは溝部)が位置ずれ
防止部3となっている。そして、かかる位置ずれ防止部
3にクランプ用金具が嵌着されることによって、該金具
の位置ずれが阻止されるようになっている。
In other words, at the end of the molded rubber hose 1, in the axial direction of the rubber hose 1, there are protrusions 2, 2, which are formed of protrusions with a substantially semicircular cross section, at a predetermined distance from the tip of the hose.
are provided in the circumferential direction, and these protrusions 2.2
A shallow recess (or groove) formed between the two serves as a displacement prevention section 3. By fitting the clamping metal fittings into the positional displacement prevention portion 3, the positional displacement of the metal fittings is prevented.

本発明は、かくの如き位置ずれ防止部3を有効に形成し
得る方法であって、まず第2図に示されるように、管状
に押し出されたゴム筒状体(チューブ)を所定の長さに
切断して、目的とする成形ゴムホース1を与える筒状ゴ
ム部材4を形成せしめる。この筒状ゴム部材4は、第3
図〜第4図に示されるように、マンドレル芯体11に嵌
挿せしめられて用いられる。
The present invention is a method for effectively forming such a positional displacement prevention part 3. First, as shown in FIG. The cylindrical rubber member 4 that provides the desired molded rubber hose 1 is formed by cutting. This cylindrical rubber member 4 has a third
As shown in FIGS. 4 to 4, it is used by being inserted into a mandrel core 11.

また、例示のマンドレル芯体11の一端には、位置ずれ
防止部(3)を形成するための筒状成型キャンプ12が
被冠せしめられており、また該マンドレル芯体11に対
して固着せしめられている。
Further, one end of the illustrated mandrel core 11 is covered with a cylindrical molded camp 12 for forming a displacement prevention part (3), and is also fixed to the mandrel core 11. ing.

なお、かかる筒状成型キャップ12は、成形ゴムホース
1の端部に位置ずれ防止部3を形成するための、断面が
略半円形状の凹溝12a、12aを、その内周面に、所
定の間隔を隔てて二条有している。
The cylindrical molded cap 12 has concave grooves 12a, 12a with a substantially semicircular cross section formed in a predetermined manner on its inner circumferential surface to form the displacement prevention part 3 at the end of the molded rubber hose 1. It has two rows spaced apart.

一方、マンドレル芯体11の他端には、取外し可能な筒
状位置決めキャップ13が被冠せしめられるようになっ
ている。そして、第3図から明らかなように、かかる筒
状位置決めキャンプ13は、マンドレル芯体11に設け
た位置決め凹部(周溝)15に対応する位置決め突部(
突条)16を有している。
On the other hand, the other end of the mandrel core 11 is fitted with a removable cylindrical positioning cap 13. As is clear from FIG. 3, the cylindrical positioning camp 13 has a positioning protrusion (
It has 16 protrusions.

そして、このような構造のマンドレル芯体11に対して
前記筒状ゴム部材4を嵌挿せしめるには、まず、筒状位
置決めキャンプ13を取り外した状態で、予め加熱せし
められて変形が容易とされた前記筒状ゴム部材4を、直
ちにマンl”レル芯体11の筒状成型キャンプ12側に
向かって(第3図において矢印方向)挿入せしめ、該筒
状成型キャップ12の内周面とマンドレル芯体11の外
周面との間に、該筒状ゴム部材4の端部を押し込み、筒
状成型キャップ12の内側端17に至るまで押し込む。
In order to fit the cylindrical rubber member 4 into the mandrel core 11 having such a structure, first, the cylindrical positioning camp 13 is removed and heated in advance to make it easy to deform. Immediately insert the cylindrical rubber member 4 into the mandrel core 11 toward the cylindrical molded camp 12 side (in the direction of the arrow in FIG. 3) so that the inner peripheral surface of the cylindrical molded cap 12 and the mandrel The end of the cylindrical rubber member 4 is pushed between the outer circumferential surface of the core body 11 and pushed in until it reaches the inner end 17 of the cylindrical molded cap 12 .

そして、更に力を加えて、管状ゴム部材4を圧迫せしめ
、且つそのように圧迫した状態で、筒状位置決めキャッ
プ13をマンドレル芯体11の他端側に冠着せしめ、そ
してその筒状位置決めキャップ13を、それに設けた位
置決め突部16をマンドレル芯体11に設けた位置決め
凹部15に嵌め込むことによって、マンドレル芯体11
に固定せしめる。これによって、筒状成型キャンプ12
の内周面に設けた凹溝12a、12a内に、前記筒状ゴ
ム部材4の外周面が盛り上がるようになり、そしてかか
る盛り上がり状態下において、該筒状ゴム部材4がマン
ドレル芯体11に固定された形態となるのである。
Then, further force is applied to compress the tubular rubber member 4, and in this compressed state, the cylindrical positioning cap 13 is crowned on the other end side of the mandrel core 11, and the cylindrical positioning cap 13, and by fitting the positioning protrusion 16 provided therein into the positioning recess 15 provided in the mandrel core 11, the mandrel core 11
to be fixed. As a result, the cylindrical molded camp 12
The outer circumferential surface of the cylindrical rubber member 4 rises within the grooves 12a, 12a provided on the inner circumferential surface of the cylindrical rubber member 4, and in this swollen state, the cylindrical rubber member 4 is fixed to the mandrel core 11. It becomes the form that was created.

そして、このようにマンドレル芯体11に筒状ゴム部材
4が固定され、しかも該筒状ゴム部材4の外周面が凹溝
12a、12aに対応して盛り上がらせられた、換言す
れば***せしめられた状態下において、所定の加硫操作
が加えられることとなるのである。なお、この加硫操作
には、一般に加硫缶が用いられ、かかる加硫缶内に、上
記の如くマンドレル芯体11に嵌挿、セットした状態で
筒状ゴム部材4を投入し、常法に従って蒸気圧を加えて
、加硫を行なうことにより、かかる筒状ゴム部JA4は
加硫され、目的とする成形ゴムホース1が得られること
となるのであり、その際、該成形ゴムホース1の端部に
は、筒状成型キャップ12の内周面の凹溝12a、12
aに対応した突条2.2が成形され、目的とする位置ず
れ防止部3が形成されることとなるのである。
In this way, the cylindrical rubber member 4 is fixed to the mandrel core 11, and the outer peripheral surface of the cylindrical rubber member 4 is raised corresponding to the grooves 12a, 12a. Under such conditions, a predetermined vulcanization operation is applied. Incidentally, a vulcanizing can is generally used for this vulcanization operation, and the cylindrical rubber member 4 is placed into the vulcanizing can with the mandrel core 11 inserted and set as described above, and then the conventional By applying steam pressure according to the vulcanization process, the cylindrical rubber part JA4 is vulcanized and the desired molded rubber hose 1 is obtained. , there are grooves 12a, 12 on the inner peripheral surface of the cylindrical molded cap 12.
The protrusions 2.2 corresponding to a are formed, and the intended displacement prevention portion 3 is formed.

なお、本発明において用いられる筒状ゴム部材4の材料
は、用途に応じて適宜に選定されるものであり、この実
施例では、耐ガソリン性を考慮してニトリルゴムが用い
られている。また、この筒状ゴム部材4の内径は、マン
ドレル芯体11の外径よりも小さくされており、本実施
例においては、前者が48m11φとされる一方、後者
は50龍φとされた。このようにすることによって、加
硫時に成形ゴムホース1の外周面に生ずるシワを効果的
に防止することができるのである。
The material of the cylindrical rubber member 4 used in the present invention is appropriately selected depending on the application, and in this embodiment, nitrile rubber is used in consideration of gasoline resistance. The inner diameter of the cylindrical rubber member 4 is smaller than the outer diameter of the mandrel core 11, and in this embodiment, the former is 48 mm and 11 φ, while the latter is 50 mm. By doing so, it is possible to effectively prevent wrinkles from occurring on the outer peripheral surface of the molded rubber hose 1 during vulcanization.

また、かかるマンドレル芯体11に嵌挿せしめられる筒
状ゴム部材4は、それが嵌挿せしめられるに先立って、
熱風炉に入れられ、65℃程度の温度に予熱せしめられ
ることが望ましい。このよ0 うな筒状ゴム部材4の予熱によって、マンドレル芯体1
1に該筒状ゴム部材4が挿入し易くなると共に、筒状成
型キャップ12の内周面とマンドレル芯体11の外周面
との間に、筒状ゴム部材4の端部が挿入され易くなるの
である。これは、筒状ゴム部材4の外径が、一般に、筒
状成型キャンプ12の内径より大とされることとなるか
らである。
Furthermore, before the cylindrical rubber member 4 is fitted into the mandrel core 11,
It is preferable to put it in a hot air oven and preheat it to a temperature of about 65°C. By preheating the cylindrical rubber member 4 like this, the mandrel core 1
1, and the end of the cylindrical rubber member 4 is easily inserted between the inner peripheral surface of the cylindrical molded cap 12 and the outer peripheral surface of the mandrel core 11. It is. This is because the outer diameter of the cylindrical rubber member 4 is generally larger than the inner diameter of the cylindrical molded camp 12.

なお、ここでは前者の外径:52mmφに対して、後者
の内径は50nφとなっている。
Here, the outer diameter of the former is 52 mmφ, while the inner diameter of the latter is 50 nφ.

なお、かかる筒状成型キャップ12と筒状位置決めキャ
ップ13の各々の筒状ゴム部材挿入孔には、大きな面取
り18.19が形成されており、かかる筒状ゴム部材4
゛が挿入され易くなっている。
Note that large chamfers 18 and 19 are formed in the cylindrical rubber member insertion holes of each of the cylindrical molded cap 12 and the cylindrical positioning cap 13.
゛ is easier to insert.

さらに、かかる筒状ゴム部材4の長さは、前述のように
、それを筒状成型キャンプ12内に押し込み、そして圧
迫して、その外周面を凹溝122部分において盛り上が
らせる必要があるところから、目的とする成形ゴムホー
ス1の長さよりも大とされており、ここでは、成形ゴム
ホースの長さ:226mに対して、筒状ゴム部材4の長
さは21 80n+とされているのである。
Furthermore, the length of the cylindrical rubber member 4 is such that, as described above, it is necessary to push it into the cylindrical molded camp 12 and press it to bulge its outer circumferential surface at the groove 122 portion. , is longer than the intended length of the molded rubber hose 1, and here, the length of the molded rubber hose is 226 m, whereas the length of the cylindrical rubber member 4 is 2180n+.

本発明において用いられるマンドレル芯体11及び筒状
成型キャップ12の構成材料としては、ステンレス鋼が
望ましいが、これに何等限定されるものではなく、軟鋼
材料を用いて、その表面にクロムメッキを施したもので
あっても、何等差支えない。また、ここでは、筒状成型
キャンプ12の内周面に設けられた二つの凹溝12a、
12aの深さはそれぞれ1.5Nとされているが、これ
に限定されることなく、適宜の深さにおいて設けられる
こととなる。しかしながら、その深さが深過ぎると、成
形ゴムホース1側に形成される***部たる突条2が不完
全となる。このため、筒状ゴム部材4の材質、厚み等に
よる影響を考慮しつつ、凹溝12aの深さを1.0〜1
.5鰭程度の間で工夫しながら調整し、目的とする成形
ゴムホース1の突条2の高さが0.7〜1.2鰭になる
ように成形せしめるのが望ましい。
The mandrel core 11 and the cylindrical molded cap 12 used in the present invention are desirably made of stainless steel, but are not limited to this in any way. Mild steel is used, and the surface thereof is plated with chrome. Even if it is, it doesn't make any difference. In addition, here, two grooves 12a provided on the inner peripheral surface of the cylindrical molded camp 12,
Although the depth of each of the holes 12a is set to 1.5N, the depth is not limited to this and may be provided at an appropriate depth. However, if the depth is too deep, the ridges 2 formed on the molded rubber hose 1 side will be incomplete. For this reason, while considering the influence of the material, thickness, etc. of the cylindrical rubber member 4, the depth of the groove 12a is set to 1.0 to 1.
.. It is preferable to make adjustments between about 5 fins and mold the desired height of the protrusions 2 of the molded rubber hose 1 to 0.7 to 1.2 fins.

また、筒状位置決めキャップ13としても、上述の実施
例ではゴム製のものを用いているが、こ2 れに限定されるものではなく、所定の位置決め位置でマ
ンドレル芯体11に対して容易に固定され、且つそれか
らの取外しが簡単な構造であれば、何れの構造のものを
も使用してもよいのである。
Furthermore, although the cylindrical positioning cap 13 is made of rubber in the above-mentioned embodiments, it is not limited to this. Any structure may be used as long as it is fixed and easy to remove.

さらに、上述の実施例にあっては、マンドレル芯体11
の一方の側にのみ筒状成型キャップ12を配し、成形ゴ
ムホース1の一方の側の外周面にのみ突条2,2を形成
せしめて、位置ずれ防止部3が形成されるようになって
いるが、筒状位置決めキャップ13側にも、位置ずれ防
止部3を形成するための凹溝を、その内周面に所定の間
隔を隔てて設けて(この場合、位置決めキャップも成形
キャップとなる)、成形ゴムホースの両端部にそれぞれ
位置ずれ防止部を形成するようにしても、何等差支えな
い。なお、このようにマンドレル芯体11の両端部に筒
状成型キャップ12を配する場合にあっては、その少な
くとも何れか一方が、マンドレル芯体11に対して脱着
可能な構造とされることとなる。勿論、そのような構造
以外にも、マンドレル芯体11を分割タイプとして、そ
の分3 割部で脱着可能とすることにより、それらの相隔たった
端部側に筒状成型キャップ12が固定されるような構造
のものであってもよいのである。
Furthermore, in the above embodiment, the mandrel core 11
The cylindrical molded cap 12 is disposed only on one side of the molded rubber hose 1, and the protrusions 2, 2 are formed only on the outer peripheral surface of one side of the molded rubber hose 1, so that the displacement prevention part 3 is formed. However, on the cylindrical positioning cap 13 side, grooves for forming the positional displacement prevention portion 3 are provided on the inner circumferential surface thereof at predetermined intervals (in this case, the positioning cap also becomes a molded cap). ), there is no problem in forming displacement prevention parts at both ends of the molded rubber hose. In addition, in the case where the cylindrical molded caps 12 are disposed at both ends of the mandrel core 11 in this way, at least one of them must have a structure that can be attached to and removed from the mandrel core 11. Become. Of course, in addition to such a structure, the mandrel core 11 is of a split type and 30% of the mandrel core body 11 is detachable, so that the cylindrical molded cap 12 can be fixed to the separated ends. It may have a similar structure.

さらにまた、本発明に従って成形ゴムホース1の少なく
とも一方の端部に形成される位置ずれ防止部3は、上側
の如く二条の突条2,2にて挟まれた形態で構成される
ことが好ましいが、そのような突条2は、二条の場合に
限られることなく、嵌着せしめられるクランプ用金具の
構造に従って、−条或いは三条以上の割合で形成された
りする場合があり、何れにしても、そのような突条2の
係止作用によってクランプ用金具の位置ずれが阻止され
ることとなるならば、その数は何等制約されるものでは
ない。
Furthermore, it is preferable that the displacement prevention part 3 formed at at least one end of the molded rubber hose 1 according to the present invention is sandwiched between two protrusions 2, 2 as shown on the upper side. , Such protruding strips 2 are not limited to two strips, but may be formed in a ratio of - strips, three strips or more, depending on the structure of the clamp fitting to be fitted, and in any case, The number of protrusions 2 is not limited in any way as long as the locking action of the protrusions 2 prevents the clamp fitting from shifting its position.

ところで、上述の如き本発明手法にあっては、筒状ゴム
部材4は、一般に成型マンドレル芯体11に挿入される
直前まで予熱されるものであるところから、該ゴム部材
4は軟らかく、それ故にマンドレル芯体11への挿入が
容易であると共に、筒状成型キャ:ノプ12の内径が筒
状ゴム部材4の4 外径より微少とされていても、該筒状成型キャンプ12
への挿入が可能となるのであり、更には該筒状ゴム部材
4を筒状成型キャップ12側方向へ圧迫して、筒状位置
決めキャップ13をその所定の位置決め位置で固定する
ことが極めて容易となるのである。
By the way, in the method of the present invention as described above, since the cylindrical rubber member 4 is generally preheated until immediately before being inserted into the molding mandrel core 11, the rubber member 4 is soft and therefore It is easy to insert into the mandrel core 11, and even if the inner diameter of the cylindrical molded cap 12 is slightly smaller than the outer diameter of the cylindrical rubber member 4, the cylindrical molded cap 12 can be easily inserted into the mandrel core 11.
Furthermore, it is extremely easy to press the cylindrical rubber member 4 in the lateral direction of the cylindrical molded cap 12 and fix the cylindrical positioning cap 13 at a predetermined position. It will become.

そして、このように筒状ゴム部材4に内部応力を与えた
状態で加硫缶に投入して、熱と外圧を加えると、筒状ゴ
ム部材4は、筒状成型キャップ12側へのゴム流れがよ
くなり、該筒状成型キャップ12の内周面に設けられた
凹溝123へゴムが更に効果的に流れ込むようになるの
であり、そして筒状成型キャップ12内での筒状ゴム部
材4の内部応力が増加し、前記凹溝12a内での盛り上
がりをより一層有効に形成しつつ、該凹溝12aに対応
する突条2が成形ゴムホース1の端部に一体加硫成形さ
れることとなるのである。すなわち、成形ゴムホース1
の端部に、前記凹溝12aに対応した、有効な高さの突
条2が形成され、以て位置ずれ防止部3が形成されるこ
ととなるのである。
Then, when the cylindrical rubber member 4 is placed in a vulcanizing can with internal stress applied to it and heat and external pressure are applied, the cylindrical rubber member 4 causes the rubber to flow toward the cylindrical molded cap 12 side. This allows the rubber to flow more effectively into the groove 123 provided on the inner peripheral surface of the cylindrical molded cap 12, and the cylindrical rubber member 4 inside the cylindrical molded cap 12 flows more effectively. The internal stress increases, and the protrusion 2 corresponding to the groove 12a is integrally vulcanized and molded to the end of the molded rubber hose 1, while forming a swell within the groove 12a more effectively. It is. That is, the molded rubber hose 1
A protrusion 2 having an effective height corresponding to the groove 12a is formed at the end of the groove 12a, thereby forming a displacement prevention portion 3.

5 かくの如く本発明に従う位置ずれ防止部を、成形ゴムホ
ースの少なくとも一方の端部に形成する方法は、従来の
如き成形用金型や加硫プレスを用いるものでないところ
から、従来法に比して、目的とする位置ずれ防止部(3
)を、成形ゴムホース1の端部に、より経済的に形成し
得るのである。
5. The method of forming the displacement prevention part according to the present invention on at least one end of a molded rubber hose is different from conventional methods because it does not use a molding die or a vulcanization press as in the past. and remove the desired positional deviation prevention part (3
) can be formed more economically at the end of the molded rubber hose 1.

なお、上述の実施例では、成形ゴムホースは平面的な曲
管ホースであるが、自動車用ホース等では立体的な曲管
ホースが多く、そのような立体的な曲管ボースは、従来
の如き成形用金型と加硫プレスで成形する成形ゴムホー
スの製造法では、それを製造すること自体が著しく困難
となるのであるが、特に本発明にあっては、そのような
立体的な曲管ホースの成形ゴムホースの製造に際して、
より一層効果的に適用し得るものであって、そこに本発
明の大きな工業的意義が存するものである。
In the above embodiment, the molded rubber hose is a flat curved hose, but many automotive hoses have three-dimensional curved hoses, and such three-dimensional curved hoses cannot be formed using conventional molding. The method of manufacturing a molded rubber hose that uses a mold and a vulcanization press makes it extremely difficult to manufacture it, but in particular, the present invention is capable of manufacturing such a three-dimensional curved hose. When manufacturing molded rubber hoses,
It can be applied even more effectively, and this is where the great industrial significance of the present invention lies.

4、図面の簡単な説明 第1図は本発明にて製造される成形ゴムホースの一例を
示す、端部のみを断面とした正面図であり、第2図は筒
状ゴム部材の斜視図であり、第36 図はマンドレル芯体に筒状ゴム部材を嵌挿せしめた状態
を示す縦断面図であり、第4図はマンドレル芯体に筒状
ゴム部材を位置決めキャップにて固定した状態を示す縦
断面図である。
4. Brief description of the drawings Fig. 1 is a front view showing an example of a molded rubber hose manufactured according to the present invention, with only the end section taken in section, and Fig. 2 is a perspective view of a cylindrical rubber member. , FIG. 36 is a longitudinal cross-sectional view showing a state in which the cylindrical rubber member is fitted into the mandrel core, and FIG. 4 is a longitudinal cross-sectional view showing the state in which the cylindrical rubber member is fixed to the mandrel core with a positioning cap. It is a front view.

1:成形ゴムホース 2:突条 3:位置ずれ防止部 4:筒状ゴム部材 11:マンドレル芯体12:筒状成
型キャップ 12a:凹溝 13:筒状位置決めキャップ 15:位置決め凹部 16:位置決め凸部 7 第1図 第4図
1: Molded rubber hose 2: Projection 3: Misalignment prevention portion 4: Cylindrical rubber member 11: Mandrel core 12: Cylindrical molded cap 12a: Concave groove 13: Cylindrical positioning cap 15: Positioning recess 16: Positioning convexity 7 Figure 1 Figure 4

Claims (1)

【特許請求の範囲】[Claims] 成形ゴムホースの端部にクランプ金具用の位置ずれ防止
溝を形成する方法であって、管状にギl出されたゴム中
袋を切断せしめて成形ゴムホースとなる筒状ゴム部材を
製し、該筒状ゴム部材はマンドリル芯体に挿入せしめて
用いられ、マンドリル芯体の一端には位置ずれ防止溝を
形成する固定形の筒状成型キャップを有し、他端には増
外し可能形の筒状位置決めキャップを有す、前記筒状ゴ
ム部材は予熱されると共に、マンドリフし芯体の成型キ
ャップ”側に向って挿入され、且つ、圧迫されて配置し
9位置決めキャップで固定されて後、加え缶加硫してな
る成形ゴムホースの製造方法に因ることを特徴とする成
形ゴムホースの端部にクランプ金具の位置ずれ防止溝を
形成する方法。
This is a method of forming a displacement prevention groove for a clamp fitting at the end of a molded rubber hose, in which a tubular rubber member that becomes a molded rubber hose is manufactured by cutting a rubber inner bag that has been gilled out into a tubular shape, and The shaped rubber member is used by being inserted into the mandrill core, and one end of the mandrill core has a fixed cylindrical molded cap that forms a groove to prevent displacement, and the other end has a removable cylindrical cap. The cylindrical rubber member with the positioning cap is preheated, inserted into the molded cap side of the mandrift core, compressed and placed, and fixed with the positioning cap, and then added to the can. A method for forming a groove to prevent displacement of a clamp fitting at an end of a molded rubber hose, the method being based on a method for manufacturing a molded rubber hose by vulcanization.
JP11924983A 1983-06-29 1983-06-29 Forming method of slip preventing groove of position of clamping metal fitting on end part of molded rubber hose Granted JPS609735A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP11924983A JPS609735A (en) 1983-06-29 1983-06-29 Forming method of slip preventing groove of position of clamping metal fitting on end part of molded rubber hose
FR8410235A FR2548086B1 (en) 1983-06-29 1984-06-28 METHOD FOR MANUFACTURING A PROFILED RUBBER TUBE

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11924983A JPS609735A (en) 1983-06-29 1983-06-29 Forming method of slip preventing groove of position of clamping metal fitting on end part of molded rubber hose

Publications (2)

Publication Number Publication Date
JPS609735A true JPS609735A (en) 1985-01-18
JPH0367008B2 JPH0367008B2 (en) 1991-10-21

Family

ID=14756649

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11924983A Granted JPS609735A (en) 1983-06-29 1983-06-29 Forming method of slip preventing groove of position of clamping metal fitting on end part of molded rubber hose

Country Status (2)

Country Link
JP (1) JPS609735A (en)
FR (1) FR2548086B1 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6219414A (en) * 1985-07-19 1987-01-28 Tokai Rubber Ind Ltd Manufacture of molded rubber hose
JPS62154906U (en) * 1986-03-25 1987-10-01
JP2011075003A (en) * 2009-09-30 2011-04-14 Ono Rubber Kogyo Kk Bending foamed rubber hose and method of manufacturing bending foamed rubber hose
CN102357955A (en) * 2011-08-22 2012-02-22 安徽中鼎密封件股份有限公司 Rubber pipe molding mold and rubber pipe molding method
CN103909596A (en) * 2014-03-19 2014-07-09 和承汽车配件(太仓)有限公司 Non-return clamp capable of preventing sulfuration and deformation of rubber pipe
KR101968845B1 (en) * 2017-11-07 2019-04-15 주식회사 화승알앤에이 Mold for Rubber Hose

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1183969B (en) * 1985-11-22 1987-10-22 Plast Di Crupi D E C Snc C EQUIPMENT AND PROCEDURE FOR MANUFACTURING SHAPED ITEMS OF PLASTIC MATERIAL PARTICULARLY FILLING PIPES FOR FUEL TANKS FOR MOTOR VEHICLES
FR2643853B1 (en) * 1989-03-02 1991-05-10 Caoutchouc Manuf Plastique PROCESS FOR FORMING THE END OF RUBBER TUBES DURING VULCANIZATION ON A MANDREL AND DEFORMABLE TOOLING FOR CARRYING OUT THIS OPERATION
FR2734508B1 (en) * 1995-05-24 1997-08-14 Peugeot METHOD FOR FORMING AN END PART OF AN ELASTOMERIC PIPE AND PIPE OBTAINED
DE29719817U1 (en) * 1997-11-07 1998-01-22 Mündener Gummiwerk GmbH, 34346 Hann. Münden Device for shaping vulcanization of a hose
CN102873796B (en) * 2012-09-26 2015-04-15 宁波丰茂汽车零部件有限公司 Two-end cutting-free die for specially-shaped rubber pipe for automobile

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531269A (en) * 1976-06-28 1978-01-09 Mitsubishi Plastics Ind Process for molding sockets of thermoplastic pipes

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US3043612A (en) * 1958-12-22 1962-07-10 Gates Rubber Co Flexible molded hose
DE1089151B (en) * 1959-10-14 1960-09-15 Continental Gummi Werke Ag Process for the production of hose elbows
DE2137175B2 (en) * 1971-07-24 1976-07-01 Phoenix Gummiwerke Ag, 2100 Hamburg METHOD AND APPARATUS FOR MANUFACTURING A CURVED MOTOR VEHICLE TANK FILLER NECK
DE2422557B2 (en) * 1974-05-09 1977-08-25 Continental Gummi-Werke Ag, 3000 Hannover METHOD AND DEVICE FOR MANUFACTURING HOSE MANIFOLDS
US4015918A (en) * 1975-06-25 1977-04-05 The Gates Rubber Company Hose molding device
DE2737277C2 (en) * 1977-08-18 1987-02-12 Phoenix Ag, 2100 Hamburg Mandrel for making elbow hoses
ES8300283A1 (en) * 1981-12-14 1982-11-01 Emeric Ribas Jose Maria Mfr. of cranked flexible hose - prevented from shrinking during thermosetting by clamping ends of hose
FR2520664A1 (en) * 1982-01-29 1983-08-05 Caoutchouc Manuf Plastique Elbowed flexible connector hoses of required length - with ends ridged or imprinted with information during mfr.

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS531269A (en) * 1976-06-28 1978-01-09 Mitsubishi Plastics Ind Process for molding sockets of thermoplastic pipes

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6219414A (en) * 1985-07-19 1987-01-28 Tokai Rubber Ind Ltd Manufacture of molded rubber hose
JPH0453164B2 (en) * 1985-07-19 1992-08-25 Tokai Rubber Ind Ltd
JPS62154906U (en) * 1986-03-25 1987-10-01
JP2011075003A (en) * 2009-09-30 2011-04-14 Ono Rubber Kogyo Kk Bending foamed rubber hose and method of manufacturing bending foamed rubber hose
CN102357955A (en) * 2011-08-22 2012-02-22 安徽中鼎密封件股份有限公司 Rubber pipe molding mold and rubber pipe molding method
CN103909596A (en) * 2014-03-19 2014-07-09 和承汽车配件(太仓)有限公司 Non-return clamp capable of preventing sulfuration and deformation of rubber pipe
KR101968845B1 (en) * 2017-11-07 2019-04-15 주식회사 화승알앤에이 Mold for Rubber Hose

Also Published As

Publication number Publication date
FR2548086A1 (en) 1985-01-04
JPH0367008B2 (en) 1991-10-21
FR2548086B1 (en) 1987-05-15

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