JPS61109967A - Bellows - Google Patents

Bellows

Info

Publication number
JPS61109967A
JPS61109967A JP59229644A JP22964484A JPS61109967A JP S61109967 A JPS61109967 A JP S61109967A JP 59229644 A JP59229644 A JP 59229644A JP 22964484 A JP22964484 A JP 22964484A JP S61109967 A JPS61109967 A JP S61109967A
Authority
JP
Japan
Prior art keywords
bellows
angle
crest
corrugated section
diameter
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
JP59229644A
Other languages
Japanese (ja)
Inventor
Kunio Takeuchi
邦夫 竹内
Yoshihito Imura
義仁 井村
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.)
Tokai TRW and Co Ltd
Original Assignee
Tokai TRW and 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 Tokai TRW and Co Ltd filed Critical Tokai TRW and Co Ltd
Priority to JP59229644A priority Critical patent/JPS61109967A/en
Priority to GB08526057A priority patent/GB2166815B/en
Priority to KR1019850007843A priority patent/KR940008830B1/en
Priority to AU49070/85A priority patent/AU595166B2/en
Priority to DE19853538617 priority patent/DE3538617A1/en
Publication of JPS61109967A publication Critical patent/JPS61109967A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16J—PISTONS; CYLINDERS; SEALINGS
    • F16J3/00—Diaphragms; Bellows; Bellows pistons
    • F16J3/04—Bellows
    • F16J3/041—Non-metallic bellows
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16C—SHAFTS; FLEXIBLE SHAFTS; ELEMENTS OR CRANKSHAFT MECHANISMS; ROTARY BODIES OTHER THAN GEARING ELEMENTS; BEARINGS
    • F16C11/00—Pivots; Pivotal connections
    • F16C11/04—Pivotal connections
    • F16C11/06—Ball-joints; Other joints having more than one degree of angular freedom, i.e. universal joints
    • F16C11/0666—Sealing means between the socket and the inner member shaft
    • F16C11/0671—Sealing means between the socket and the inner member shaft allowing operative relative movement of joint parts due to flexing of the sealing means

Abstract

PURPOSE:To allow a smooth movement in the axial and radial directions by continuously changing the angle of crest and the bottom land diameter of the corrugated section, and dispensing with changing the thickness or the pitch of the corrugated section. CONSTITUTION:The angle of crest 21 is made increasingly smaller gradually from one end 11 toward the other end 12, while the diameter of the bottom land 22 is made increasingly larger. When the bellows so arranged contracts under its free state, the contraction starts at the other end 12 to ultimately reach the end 11, and when it expands under the contracted condition, the expansion starts at the end 11 to reach the other end 12. Such is the characteristics of the instant bellows. Therefore, there is no need to change the thickness or pitch of the corrugated section, and the change in the axial and radial directions becomes smooth.

Description

【発明の詳細な説明】 （産業上の利用分野） 本発明はベローズの改良に関するものである。[Detailed description of the invention] (Industrial application field) The present invention relates to improvements in bellows.

（従来の技術と問題点） 一般に、ベローズはその軸線方向に沿って伸縮自在であ
り、かかるベローズは、先ず、射出成形によって円筒状
の一″ａ−ズ本体即ち／２リソンを作り、次いで型によ
ってその円筒状のベローズ本体の周壁に波状部を作るこ
とが知られて℃・る。Ｃのような夜ローズは、一方の軸
とこの軸に揺動自存に接続された他方の軸との周囲を朔
５ように使用される場合には軸線方向に沿って伸縮自在
であると共に半径方向に円滑にたわむことができるのが
望ましい。(Prior Art and Problems) Generally, a bellows is expandable and retractable along its axial direction, and such a bellows is first made by injection molding to form a cylindrical 1"a-z body, or 1/2 lison, and then molded. It is known that a wavy portion is created on the peripheral wall of the cylindrical bellows body by C.C.A night rose such as C has one shaft and the other shaft connected to this shaft in a freely swinging manner. When used in a circular motion, it is desirable to be able to expand and contract along the axial direction and to be able to bend smoothly in the radial direction.

従来、ごの種のベローズでは軸線方向と半径方向とにな
めらかに変位するためにベローズの肉厚を変化させるか
又はベローズの波状部のピンチを２段又は３段等複数段
に変化させるようにしていた。しかしながら、ベローズ
の肉厚を変化させることはパリソンの肉厚を常にコント
ロールしなければならずこれはきわめて困難であった。Conventionally, in order to smoothly displace the bellows in the axial and radial directions, the wall thickness of the bellows has been changed, or the pinch of the corrugated portion of the bellows has been changed in multiple stages, such as two or three stages. was. However, changing the wall thickness of the bellows requires constant control of the wall thickness of the parison, which is extremely difficult.

又ベローズのピッチを変化させることは揺動点の位置に
ピンチの変化部を対応させなければならず、０れも又き
わめて困難であるという欠点があった。In addition, changing the pitch of the bellows requires making the pinch change portion correspond to the position of the swing point, which is also extremely difficult.

本発明の目的は上記の如き従来技術の欠点を解消した実
用上有益なベローズを提供することにある。An object of the present invention is to provide a practically useful bellows that overcomes the drawbacks of the prior art as described above.

（問題点を解決するだめの手段） 上記従来技術の問題点を解決するために本発明ではベロ
ーズの波状部の山部の角度と谷部の径とを波状部の一端
から他端にかけて連続的に変化させるようにしたのであ
る。(Means for Solving the Problems) In order to solve the problems of the prior art described above, in the present invention, the angle of the peaks and the diameter of the valleys of the wavy portion of the bellows are made continuous from one end of the wavy portion to the other end. I decided to change it to .

（実施例） 以下、本発明の実施例を図面を参照して詳細に説明する
。(Example) Hereinafter, an example of the present invention will be described in detail with reference to the drawings.

第１図を参照すると、本発明に係るベローズをランク・
ピニオンステアリングギヤアセンブリに適用した場合の
実施例が示しである。第１図にお（・て、符号１はハウ
ジングを示す。このハウジング内にはランク２とこのラ
ックに設けられたランク歯２ａに噛合うピニオン６とが
配置されている。Referring to FIG. 1, the bellows according to the present invention is
An example of application to a pinion steering gear assembly is shown. In FIG. 1, reference numeral 1 indicates a housing. A rank 2 and a pinion 6 meshing with rank teeth 2a provided on the rack are disposed within the housing.

ランクの両端はポールジョイノド４を介してクイロッド
５が接続され、これらタイロッドは適当なリンク（図示
せず）を介し、て車輪（図示せず）に連結されている。Both ends of the rank are connected to tie rods 5 via pole joint rods 4, and these tie rods are connected to wheels (not shown) via appropriate links (not shown).

ピニオン６はステアリングシャフト（図示せず）の一端
に接続され、このンヤフトの他端にはステアリングホイ
ール（図示せず）が接続されている。The pinion 6 is connected to one end of a steering shaft (not shown), and the other end of this shaft is connected to a steering wheel (not shown).

従って、ステアリングホイールを回転すると、ピニオン
ろが回転しラック２がその軸線方向に移動し車輪の操舵
がなされる。この点は周知であるので詳細な説明を省略
する。Therefore, when the steering wheel is rotated, the pinion filter rotates and the rack 2 moves in its axial direction, thereby steering the wheels. Since this point is well known, detailed explanation will be omitted.

本発明に系るベローズが総体的に符号１ｏで示してあり
、このベローズはボールジヨイント４を覆うように配置
されている。このベローズの一端１１はハウジング１に
固定され、他端１２はタイロッド５に固定されている。A bellows according to the invention is generally designated 1o and is arranged to cover the ball joint 4. One end 11 of this bellows is fixed to the housing 1, and the other end 12 is fixed to the tie rod 5.

このベローズの詳細が第２図に明瞭に示されている。こ
のベローズは一端１１と他端１２との間に設けられた円
筒状の波状部２０を有して℃・る。この波状部は複数の
環状の山部２１と複数の環状の谷部２２とを長手方向即
ち軸線２６方向に溢って連続的に接続して形成されてい
る。この波状部の山部の角度と谷部の径とは波状部の一
端から他端に亘って連続的に変化するように設定されて
いる。Details of this bellows are clearly shown in FIG. The bellows has a cylindrical corrugated portion 20 provided between one end 11 and the other end 12. The wavy portion is formed by continuously connecting a plurality of annular peaks 21 and a plurality of annular troughs 22 overflowing in the longitudinal direction, that is, in the direction of the axis 26. The angle of the crest and the diameter of the trough of the wavy portion are set to change continuously from one end to the other end of the wavy portion.

図示の実施例では、第２図に示すように、一端１１から
他端１２にかけて山部２１の角度が徐々に小さくなって
おり、逆に谷部２２の径は徐々に大きくなるよ５に変化
している。山角が小さいということは山部間の距離即ち
ピンチが小さくなり且つ山角が太き（・場合に比べてベ
ローズの剛性が弱くなる。又、谷部の径が大きいと小さ
い場合に比べて肉厚が薄くなる。In the illustrated embodiment, as shown in FIG. 2, the angle of the peak portion 21 gradually decreases from one end 11 to the other end 12, and conversely, the diameter of the valley portion 22 gradually increases. are doing. A smaller crest angle means that the distance between the ridges, that is, the pinch, is smaller, and the rigidity of the bellows is weaker than when the crest angle is thicker. The wall thickness becomes thinner.

このように設定されたベローズではその自由状態で縮む
場合には他端１２ｍより縮み始めて一端１１側に至り、
又縮んだ状態から伸びる場合には一端１１側より伸び始
め他端１２に至るという性質を有する。When the bellows set in this way contracts in its free state, it begins to contract from the other end 12 m and reaches the one end 11,
Moreover, when it expands from a contracted state, it has the property that it begins to expand from the one end 11 side and reaches the other end 12.

図示の実施例では他端１２側即ち剛性の弱い部分がボー
ルジヨイント４に対向するようににローズが配置されて
（・る。このようにすると、（ローズの揺動運動が円滑
に行え且つストローク部分の影響が少ないので内外周部
における干渉がない。In the illustrated embodiment, the rose is arranged so that the other end 12 side, that is, the weaker rigid part faces the ball joint 4. In this way, the rose can swing smoothly and Since the influence of the stroke part is small, there is no interference between the inner and outer circumferential parts.

尚、第２図および第６図に示すように他端１２と波状部
２０とを連結する端面３０には第６図および第４図に示
す如き補強用リブ６１が設けられている。As shown in FIGS. 2 and 6, the end surface 30 connecting the other end 12 and the corrugated portion 20 is provided with reinforcing ribs 61 as shown in FIGS. 6 and 4.

（効果） 本発明によれば、波状部の山部の角度と谷部の径とを連
続的に変化させたベローズを提供したので従来のように
波状部の肉厚を変化させたりピッチを複数段に変化させ
たりするものに比べ製造が簡易であり且つ軸方向および
半径方向の変化が円滑であるという実益がある。(Effects) According to the present invention, a bellows is provided in which the angle of the crest and the diameter of the trough of the wavy portion are continuously changed. It has the practical advantage that it is easier to manufacture and smoother changes in the axial and radial directions than those in which the change is made in steps.

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

第１図は本発明に係るベローズをラック・ピニオンステ
アリングアセンブリに適用した場合の実施例を示す断面
図、第２図は本発明に係るベローズの断面図、第６図は
ベローズの側面図、第４面は第２図のＡ−Ａ線断面図で
ある。 １０・・・ベローズ　　２０・・・波状部２１・・・山
部　　　　２２・・・谷部特許出願人　　東海ティーア
ールダブリュー株式会社手続補正書（方式） 昭和６０年３月２２日 昭和１年び１持　願第　２２７ｔ％Ｉ、１　　号ヘ　り
一人 ３、補正をする者 事件との関係　　　出　願　人 住所 ７ア　♀力“　　ψ瀉　ティー　７−ルタ　フ゛ソニー
ｊまアＡ５仝壊１４、代理人 ５補正命令の日付　　昭和６０年　２ｎ８日（発送日）
６、補正の対象 図　　　面FIG. 1 is a cross-sectional view showing an embodiment of the bellows according to the present invention applied to a rack and pinion steering assembly, FIG. 2 is a cross-sectional view of the bellows according to the present invention, and FIG. 6 is a side view of the bellows. The fourth side is a sectional view taken along line A--A in FIG. 10... Bellows 20... Wavy part 21... Mountain part 22... Tanibe Patent applicant Tokai T.R.W. Co., Ltd. Procedural amendment (method) March 22, 1985 Petition No. 227t% I, No. 1 per person 3, Relationship with the case Applicant Address 7 A ♀ Power “ψ> T 7 - Lawyer Sony A5 Destruction 14, Agent 5 Amendment Date of order: 2n8, 1985 (shipment date)
6. Drawings subject to correction

Claims (1)

【特許請求の範囲】[Claims] 複数の環状の山部と複数の環状の谷部とを長手方向に沿
つて連続的に接続して形成された円筒状の波状部を有し
、該波状部の一端から他端に亘つて前記山部の角度と谷
部の径とが連続的に変化して成るベローズ。It has a cylindrical wavy part formed by continuously connecting a plurality of annular peaks and a plurality of annular troughs along the longitudinal direction, and the wavy part extends from one end to the other end. A bellows in which the angle of the peak and the diameter of the valley continuously change.
JP59229644A 1984-10-31 1984-10-31 Bellows Pending JPS61109967A (en)

Priority Applications (5)

Application Number Priority Date Filing Date Title
JP59229644A JPS61109967A (en) 1984-10-31 1984-10-31 Bellows
GB08526057A GB2166815B (en) 1984-10-31 1985-10-22 Bellows to enclose pivotting joint
KR1019850007843A KR940008830B1 (en) 1984-10-31 1985-10-24 Bellows
AU49070/85A AU595166B2 (en) 1984-10-31 1985-10-25 Bellows
DE19853538617 DE3538617A1 (en) 1984-10-31 1985-10-30 EXPANSION CUFF

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP59229644A JPS61109967A (en) 1984-10-31 1984-10-31 Bellows

Publications (1)

Publication Number Publication Date
JPS61109967A true JPS61109967A (en) 1986-05-28

Family

ID=16895426

Family Applications (1)

Application Number Title Priority Date Filing Date
JP59229644A Pending JPS61109967A (en) 1984-10-31 1984-10-31 Bellows

Country Status (5)

Country Link
JP (1) JPS61109967A (en)
KR (1) KR940008830B1 (en)
AU (1) AU595166B2 (en)
DE (1) DE3538617A1 (en)
GB (1) GB2166815B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762463A1 (en) 2005-09-07 2007-03-14 Carl Freudenberg KG Steering boot

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4969542A (en) * 1989-07-17 1990-11-13 General Motors Corporation Dust shield for a damper
GB2287290B (en) * 1994-02-24 1996-06-26 Draftex Ind Ltd Protective bellows

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639714U (en) * 1979-08-31 1981-04-14

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE6809359U (en) * 1968-11-30 1969-03-26 Opel Adam Ag BELLOWS MADE OF ELASTIC MATERIAL FOR CIRCULATING JOINT PARTS, IN PARTICULAR FOR DRIVE JOINTS OF MOTOR VEHICLES
SE394830B (en) * 1972-08-31 1977-07-11 Uni Cardan Ag SEAL CUFF
DE2931764C2 (en) * 1979-08-04 1985-04-25 Löhr & Bromkamp GmbH, 6050 Offenbach Driven steering axle
BR8402890A (en) * 1983-07-22 1985-06-11 Teves Gmbh Alfred SEAL COVER FOR CYLINDRICAL PARTS, ESPECIALLY FOR POINT ACTION DISK BRAKE GUIDE

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5639714U (en) * 1979-08-31 1981-04-14

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1762463A1 (en) 2005-09-07 2007-03-14 Carl Freudenberg KG Steering boot

Also Published As

Publication number Publication date
DE3538617A1 (en) 1986-04-30
GB2166815B (en) 1988-04-07
GB2166815A (en) 1986-05-14
KR940008830B1 (en) 1994-09-26
GB8526057D0 (en) 1985-11-27
AU595166B2 (en) 1990-03-29
AU4907085A (en) 1986-05-08
KR860003437A (en) 1986-05-23

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