JP4446478B2 - Column boot structure - Google Patents

Column boot structure Download PDF

Info

Publication number
JP4446478B2
JP4446478B2 JP2004317744A JP2004317744A JP4446478B2 JP 4446478 B2 JP4446478 B2 JP 4446478B2 JP 2004317744 A JP2004317744 A JP 2004317744A JP 2004317744 A JP2004317744 A JP 2004317744A JP 4446478 B2 JP4446478 B2 JP 4446478B2
Authority
JP
Japan
Prior art keywords
column
mold
bulge
pipe
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.)
Expired - Fee Related
Application number
JP2004317744A
Other languages
Japanese (ja)
Other versions
JP2006125592A (en
Inventor
見 明 夫 逸
田 領 次 内
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.)
UD Trucks Corp
Original Assignee
UD Trucks Corp
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 UD Trucks Corp filed Critical UD Trucks Corp
Priority to JP2004317744A priority Critical patent/JP4446478B2/en
Publication of JP2006125592A publication Critical patent/JP2006125592A/en
Application granted granted Critical
Publication of JP4446478B2 publication Critical patent/JP4446478B2/en
Expired - Fee Related legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Landscapes

  • Diaphragms And Bellows (AREA)
  • Steering Controls (AREA)
  • Sealing Devices (AREA)

Description

本発明は、ステアリングシャフトを包囲するコラムに設けられたコラムブーツの構造に関し、特に型抜きを容易に形成した合成樹脂製のコラムブーツの構造に関する。   The present invention relates to the structure of a column boot provided in a column surrounding a steering shaft, and more particularly to the structure of a column boot made of synthetic resin in which die cutting is easily formed.

図8は管の連結継ぎ手に用いられる通常のバルジによる連結の説明図である。図において、大径の中空管15の内壁に形成された環状の溝部(バルジ)17に、小径の中空管35の外周面に形成された環状の突起(バルジ)37が嵌合されて、シール保持された連結がなされている。   FIG. 8 is an explanatory view of connection by a normal bulge used for a pipe connection joint. In the figure, an annular protrusion (bulge) 37 formed on the outer peripheral surface of a small diameter hollow tube 35 is fitted in an annular groove (bulge) 17 formed on the inner wall of the large diameter hollow tube 15. The seal-held connection is made.

図9は、大径の中空管15を例にして、内壁の環状の溝部17を金型で形成する一般的な例を示している。外型m1と分割型の内型m2の間にモールディングが射出され中空管15の直部と溝部(バルジ)17が形成される。型m3は内型m2を保持して、かつ、モールディングのガイドルートを形成している。
このような、型の構成では、溝部(バルジ)17が形成された後の脱型に際して、最初に型m3を外し、内型m2を分割して管内に落とし込むようにして溝部(バルジ)17から脱型させている。
FIG. 9 shows a general example in which the annular groove 17 on the inner wall is formed by a mold, taking the large-diameter hollow tube 15 as an example. A molding is injected between the outer mold m1 and the split inner mold m2, and a straight portion of the hollow tube 15 and a groove (bulge) 17 are formed. The mold m3 holds the inner mold m2 and forms a molding guide route.
In such a mold configuration, when the mold is removed after the groove (bulge) 17 is formed, the mold m3 is first removed, and the inner mold m2 is divided and dropped into the pipe from the groove (bulge) 17. Demolding.

上記のような従来のバルジ成形では、型が複雑でかつ型の組立、取り外しが面倒で、型のコストと作業性に難点がある。作業性からは内型m2を分割して管内に落としこむような面倒がなく、単に軸方向に引き出せるものが望まれている。   In the conventional bulge forming as described above, the mold is complicated and the assembly and removal of the mold is troublesome, and there are difficulties in the cost and workability of the mold. From the viewpoint of workability, it is desired that the inner mold m2 be divided and dropped into the pipe without any hassle and simply drawn out in the axial direction.

樹脂ホースのバルジ成型については、挿管が容易でかつシール性のよい配管部材が提案されている(例えば、特許文献1参照)。
しかし、この提案は前記のバルジ成型の難点を解決するものではない。
また、鋼管のバルジ成型についての提案もなされている(例えば、特許文献2参照)。
しかしこの提案は、自動車の排気マニホールドの構成部品としての紡錘型パイプを成型するもので、継ぎ手の機能を有するものではない。
For bulge molding of resin hoses, piping members that are easy to intubate and have good sealing properties have been proposed (see, for example, Patent Document 1).
However, this proposal does not solve the above-mentioned difficulty of bulge molding.
Moreover, the proposal about the bulge shaping | molding of a steel pipe is also made | formed (for example, refer patent document 2).
However, this proposal forms a spindle type pipe as a component part of an automobile exhaust manifold, and does not have a joint function.

図10〜図15は、自動車運転用のステアリングシャフト1を包囲するコラム2に設けられたコラムブーツ8を示している。   10 to 15 show a column boot 8 provided on a column 2 surrounding a steering shaft 1 for driving an automobile.

コラムブーツ8は、上部に環状の溝部(バルジ)17Aが形成された変形台形筒状のカバー部11と、カバー部11の下部に嵌合する蛇腹状の蛇腹部7Aとで構成されている。   The column boot 8 includes a deformed trapezoidal cylindrical cover portion 11 having an annular groove (bulge) 17 </ b> A formed in the upper portion, and a bellows-shaped bellows portion 7 </ b> A that fits in the lower portion of the cover portion 11.

図12〜図15は、環状の溝部(バルジ)17Aが形成されたカバー部11を示している。
図12〜図15において、カバー部11の上部に、端部にフランジ16を有する直管部18の内壁に溝部(バルジ)17Aが設けられた係合部15Aがあり、カバー部11の下端部には蛇腹部7Aに嵌合して固定されるフランジ部13が設けられている。この係合部15Aは溝部(バルジ)を有する前記図8の管の連結部と同様の機能を有している。
12 to 15 show the cover part 11 in which an annular groove part (bulge) 17A is formed.
12 to 15, an engaging portion 15 </ b> A having a groove portion (bulge) 17 </ b> A provided on an inner wall of a straight pipe portion 18 having a flange 16 at an end portion is provided at an upper portion of the cover portion 11, and a lower end portion of the cover portion 11. Is provided with a flange portion 13 fitted and fixed to the bellows portion 7A. The engaging portion 15A has a function similar to that of the connecting portion of the pipe of FIG. 8 having a groove (bulge).

図15は、この係合部15Aの成型方法を示していて、実質的には図9の金型の着、脱と同様である。即ち、環状の溝部17Aを成型する突起部Cbを有する分割型の内型C2を中型C1が支持してモールディングが射出され、係合部15Aが成型された後に、中型C1をY方向に引き出し、内型C2を半径方向の内方に落とし込むようにして脱型をする。
この場合の金型Cの着、脱の不都合さは前記図9と全く同様である。特に図9で示すオイルや水用の小管を対象にするのと異なり、直径で80〜90mmのブーツでは型の扱いが一層面倒になっている。
このようなコラムブーツにおけるバルジの成形を容易にする技術は未だ提案されてはいない。
特開9−100965号公報 特開2000−48767号公報
FIG. 15 shows a molding method of the engaging portion 15A, which is substantially the same as the attaching / detaching of the mold of FIG. That is, after the middle mold C1 supports the split inner mold C2 having the projection Cb for molding the annular groove 17A and the molding is injected and the engaging portion 15A is molded, the middle mold C1 is pulled out in the Y direction. The inner mold C2 is demolded so as to drop inward in the radial direction.
The inconvenience of attaching and detaching the mold C in this case is exactly the same as in FIG. In particular, unlike the case of the oil and water small tubes shown in FIG. 9, the handling of the mold is more troublesome in the boots having a diameter of 80 to 90 mm.
No technology has yet been proposed to facilitate the formation of bulges in such column boots.
Japanese Patent Laid-Open No. 9-100965 JP 2000-48767 A

本発明は上述した従来技術の問題点に鑑みて提案されたものであり、単純な金型(あるいは非鉄金属による型)で成形できるコラムブーツの構造の提供を目的としている。   The present invention has been proposed in view of the above-described problems of the prior art, and an object thereof is to provide a structure of a column boot that can be formed with a simple mold (or a nonferrous metal mold).

発明者は種々研究の結果、バルジ部に複数の軸方向の切り欠きを入れ、型を引抜く際に切り欠きが開いて型が軸方向に抜けるようにし、バルジ部及び管部が弾性限界以内で拡径させることで継ぎ手としての実用化が可能なことを見出した。   As a result of various researches, the inventor has made multiple axial notches in the bulge part so that when the mold is pulled out, the notch is opened so that the mold can be removed in the axial direction. It was found that practical application as a joint is possible by expanding the diameter with.

本発明によれば、ステアリングシャフト(1)を包囲するコラム(2)に設けられたコラムブーツ(8)の構造において、前記コラムブーツ(8)は合成樹脂製でモールディング成形されたものであり、変形台形筒状のカバー部(21)の上部に係合部を構成する大径のパイプ状部材(25)が形成され、その大径のパイプ状部材(25)は上端部にフランジ(26)を有する直管部(28)を有し、その直管部(28)には内壁面に環状の溝部(27)が形成され、その上端部から溝部(27)の下方にかけて複数の切り欠き(30)が形成され、その切り欠き(30)は上端部に向かって幅寸法(W)が増加するV字形状で、かつその端部(31R)は半円形状に形成されており、そして前記コラム(2)の外周面には環状の突起(37)が形成され、前記大径のパイプ状部材(25)の内側に挿入されて大径のパイプ部材(25)の内壁面に形成された環状の溝部(27)にその環状の突起(37)が嵌合されている。   According to the present invention, in the structure of the column boot (8) provided in the column (2) surrounding the steering shaft (1), the column boot (8) is made of synthetic resin and molded. A large-diameter pipe-like member (25) constituting an engaging portion is formed on the upper portion of the deformed trapezoidal cylindrical cover portion (21). The straight pipe part (28) has an annular groove part (27) formed on the inner wall surface, and a plurality of notches (from the upper end part to the lower part of the groove part (27) ( 30), the notch (30) is V-shaped with the width dimension (W) increasing toward the upper end, and the end (31R) is formed in a semicircular shape, and An annular protrusion (37) is formed on the outer peripheral surface of the column (2). The annular projection (37) is inserted into the annular groove (27) formed on the inner wall surface of the large diameter pipe member (25) by being inserted inside the large diameter pipe member (25). It is mated.

実施に際して、切り欠きは、成型された大径のパイプ状部材が脱型時に金型が軸方向(小径のパイプ状部材方向)に移動するときに弾性限界内で大径のパイプ状部材が拡径し、嵌合力を有する程度の数量と形状にすることが必要である。
この切り欠きを形成した溝部(バルジ)は、油分やほこりのシール性が厳密には要求されない場所への適用が好ましい。
In practice, the notch is formed so that the large-diameter pipe-shaped member expands within the elastic limit when the mold moves in the axial direction (in the small-diameter pipe-shaped member direction) when the molded large-diameter pipe-shaped member is removed. It is necessary to make the diameter and the shape and the degree of fitting force.
The groove (bulge) in which this notch is formed is preferably applied to a place where oil and dust sealability is not strictly required.

本発明のコラムブーツは、大径のパイプ状部材の内壁面に形成された環状の溝部に複数の切り欠きが形成されており、該切り欠きは、小径のパイプ状部材側に向かって幅寸法が増加するV字形状に構成されているので、成形時の、とくに脱型に際しては環状の溝部が拡径するために型を分解することなく(スライド型を使用することなく)直接に軸方向に引抜きができるので、金型の構造が簡単になり、またステアリングまわりの組み付けに際してブーツの連結が容易になる利点がある。   In the column boot of the present invention, a plurality of notches are formed in an annular groove formed on the inner wall surface of a large-diameter pipe-like member, and the notches have a width dimension toward the small-diameter pipe-like member side. Because it is configured in a V-shape that increases, the annular groove is enlarged during molding, especially during demolding, so the axial direction can be directly adjusted without disassembling the mold (without using a slide mold). Therefore, there is an advantage that the structure of the mold is simplified and that the boots can be easily connected when assembling around the steering wheel.

以下、添付図面を参照して、本発明の実施形態について説明する。
図1〜図3は、第1実施形態を示している。従来図8、9も参照して説明する。
図1において、管を構成する大径の中空部材15の端部近傍に内壁面に環状の溝部17が形成されている。溝部17は、凹部が円弧状で裾の両端が滑らかに中空部材15の直管部に接続されて、型の落ち着きと射出されたモールディングの流れがスムーズになるように構成されている。
Embodiments of the present invention will be described below with reference to the accompanying drawings.
1 to 3 show a first embodiment. A description will be given with reference to FIGS.
In FIG. 1, an annular groove portion 17 is formed on the inner wall surface in the vicinity of the end portion of the large-diameter hollow member 15 constituting the tube. The groove portion 17 is configured such that the concave portion has an arc shape and both ends of the skirt are smoothly connected to the straight pipe portion of the hollow member 15 so that the mold is settled and the injected molding flow is smooth.

中空部材15の端部(図8における小径の中空部材35が挿入される側)からV字形状の切り欠き30Aが軸に平行に、溝部17を横切って形成されている。切り欠き30Aの幅Wは小径の中空部材35側に向かって幅寸法が増加し、余裕のある型抜き勾配も配慮するように構成され、切り欠き30Aの端部30Rは拡径時に応力集中のない円弧状に構成されている。
図2に示すように、切り欠き30Aは円周方向に等分に3ヶが形成されていて、3ヶの切り欠き30AとV字形状によって、脱型時の中空部材15のとくに溝部17の拡径が、中空部材15の材料の弾性限界内にあって破損の生じることがないように形成されている。
A V-shaped cutout 30 </ b> A is formed across the groove 17 in parallel to the axis from the end of the hollow member 15 (the side where the small-diameter hollow member 35 in FIG. 8 is inserted). The width W of the notch 30A is configured so that the width dimension increases toward the small-diameter hollow member 35 side, and an allowance for the die-cutting slope is taken into account. There is no arc shape.
As shown in FIG. 2, three notches 30A are equally formed in the circumferential direction, and the three notches 30A and the V-shape make the hollow member 15 of the hollow member 15 at the time of demolding, especially the groove portion 17 The expanded diameter is within the elastic limit of the material of the hollow member 15 and is formed so as not to be damaged.

図3は、中空部材15の脱型の要領を示したもので、内型M2を軸方向X2に引抜く際に、切り欠き30Aによって中空部材15が拡径して内型M2の突起Mcを引き出し可能にしている。
切り欠き30Aからの内型M2の引き出しは、図示による明示はしていないが切り欠き30Aの引き出し側の幅Wが広く、即ち抜き勾配があるので中空部材15を破損させることなく容易に引き出しできる。
このようにして製造された中空部材15は、小径の中空部材35を挿入して連結する(図8参照)作業が容易である。
FIG. 3 shows a procedure for removing the hollow member 15. When the inner mold M2 is pulled out in the axial direction X2, the hollow member 15 is expanded in diameter by the notch 30A so that the protrusion Mc of the inner mold M2 is formed. It can be pulled out.
The inner mold M2 can be pulled out from the notch 30A, although not shown in the figure, the width W on the pullout side of the notch 30A is wide, that is, there is a draft, so that the hollow member 15 can be easily pulled out without being damaged. .
The hollow member 15 manufactured in this way is easy to insert and connect a small-diameter hollow member 35 (see FIG. 8).

図4〜図7は、第2実施形態を示している。本第2実施形態は、従来図10〜15で示したステアリングコラム2を包囲するコラムブーツ8のカバー部11にV字状の切り欠きを形成して、型抜きを容易にし、カバー部11とコラムバルジ部3との連結嵌合いを容易にする態様にしたものである。従来図10〜15も参照して従来のカバー部11と異なる部分を主体に説明する。   4 to 7 show a second embodiment. In the second embodiment, a V-shaped cutout is formed in the cover portion 11 of the column boot 8 surrounding the steering column 2 shown in FIGS. In this embodiment, the connection with the column bulge portion 3 is facilitated. A description will be given mainly of portions different from the conventional cover portion 11 with reference to FIGS.

図4〜図6において、カバー部21の係合部を構成する大径のパイプ状部材25の上端部にフランジ26を有する直管部28があり、直管部28の内壁に環状の溝部(バルジ)27が設けられている。   4 to 6, there is a straight pipe portion 28 having a flange 26 at the upper end portion of the large-diameter pipe-like member 25 constituting the engaging portion of the cover portion 21, and an annular groove ( Bulge) 27 is provided.

溝部27は、係合部のパイプ状部材25を拡大した図6を参照して、凹部が円弧状で裾の両端が滑らかにパイプ状部材25の直管部28に接続されて、型の落ち着きと射出されたモールディングの流れがスムーズになるように構成されている。
溝部27の下端部に接続する直管部28は下端にフランジ33を有する変形台形のスカート部24に接続されている。
Referring to FIG. 6 in which the pipe-shaped member 25 of the engaging portion is enlarged, the groove portion 27 has a concave portion in an arc shape and both ends of the hem are smoothly connected to the straight pipe portion 28 of the pipe-shaped member 25, so that the mold is settled. And the flow of injected molding is configured to be smooth.
The straight pipe portion 28 connected to the lower end portion of the groove portion 27 is connected to a deformed trapezoidal skirt portion 24 having a flange 33 at the lower end.

パイプ状部材25に、上端部から溝部27の下方の直管部28にかけてV字状の切り欠き30が形成されている。
切り欠き30は上端部、即ち小径のパイプ状部材35(図7参照)、に向かって幅Wの寸法が増加するように形成され、端部31Rは半円状に形成されている。従って、切り欠き30の外側端部32は、型抜きが容易な抜き勾配を構成している。抜き勾配はパイプ状部材25のサイズ、材質、型の材質等によってきめられる。
A V-shaped cutout 30 is formed in the pipe-like member 25 from the upper end portion to the straight pipe portion 28 below the groove portion 27.
The notch 30 is formed such that the dimension of the width W increases toward the upper end, that is, the small-diameter pipe-shaped member 35 (see FIG. 7), and the end 31R is formed in a semicircular shape. Accordingly, the outer end portion 32 of the notch 30 forms a draft angle that can be easily punched. The draft is determined by the size, material, mold material, etc. of the pipe-like member 25.

図5を参照して、切り欠き30は複数、図においては、3ヶが円周方向に等分されている。切り欠き30の個数は少ないと型が抜けないので、型が抜ける範囲でかつ溝27としての嵌合いが可能な、そして嵌合力を有する範囲の個数が好ましい。   Referring to FIG. 5, a plurality of notches 30, three in the figure, are equally divided in the circumferential direction. If the number of the cutouts 30 is small, the mold cannot be removed. Therefore, the number in the range in which the mold can be removed and can be fitted as the groove 27 and has a fitting force is preferable.

図7は、上記の構成による大径のパイプ状部材25に小径のパイプ状部材35Aが挿入され溝部27と突起37が嵌合された状態を示している。
そして、第1実施形態の図3で示した型抜きと同様に、型M2でパイプ状部材25を成形し脱型をする際には、パイプ状部材25の切り欠き30によって拡径され、X2方向に脱型ができる。
FIG. 7 shows a state where the small-diameter pipe-shaped member 35A is inserted into the large-diameter pipe-shaped member 25 having the above-described configuration, and the groove 27 and the protrusion 37 are fitted.
Similarly to the die cutting shown in FIG. 3 of the first embodiment, when the pipe-shaped member 25 is molded and removed from the mold M2, the diameter is expanded by the notch 30 of the pipe-shaped member 25, and X2 Demolding in the direction.

このようにして製造されたパイプ状部材25は、ステアリングコラム2に形成された小径のパイプ状部材35Aのコラムバルジ部3の突起に嵌合する連結が容易で、車両製造におけるステアリングの組立及び修理保全が容易である。また、切り欠き30があるので、油やほこりのシールが厳密には要求されない場所に好適である。   The pipe-like member 25 manufactured in this manner can be easily connected to the projection of the column bulge portion 3 of the small-diameter pipe-like member 35A formed on the steering column 2, and the assembly and repair of the steering in vehicle manufacture. Easy to maintain. Further, since the notch 30 is provided, it is suitable for a place where a seal of oil or dust is not strictly required.

前記図示の実施形態はあくまでも例示であり、本発明の技術的範囲を限定する趣旨の記述ではない旨を付記する。   It should be noted that the illustrated embodiment is merely an example and is not intended to limit the technical scope of the present invention.

本発明の第1実施形態に係るV字状の切り欠きが形成された中空部材の側面図。The side view of the hollow member in which the V-shaped notch concerning 1st Embodiment of this invention was formed. 図1のX矢視正面図。FIG. 図1の溝部(バルジ)が形成された中空部材から脱型する状態を示す説明図。Explanatory drawing which shows the state which demolds from the hollow member in which the groove part (bulge) of FIG. 1 was formed. 第2実施形態に係るV字状の切り欠きが形成されたカバー部の側面図。The side view of the cover part in which the V-shaped notch concerning 2nd Embodiment was formed. 図4の切り欠きを示すYc矢視図。The Yc arrow directional view which shows the notch of FIG. 図4の係合部(V字状の切り欠き周辺)の拡大図。FIG. 5 is an enlarged view of the engaging portion (around the V-shaped notch) in FIG. 第2実施形態に係るバルジ連結の説明図。Explanatory drawing of the bulge connection which concerns on 2nd Embodiment. 通常のバルジ連結の説明図。Explanatory drawing of normal bulge connection. 従来のバルジの成型の説明図。Explanatory drawing of the shaping | molding of the conventional bulge. 従来のコラムブーツの側面図。The side view of the conventional column boots. 図10の正面図。The front view of FIG. 従来のカバー部の側面図。The side view of the conventional cover part. 図12の側面図。The side view of FIG. 図12のZ矢視図。FIG. 従来の係合部の脱型の要領を示す説明図。Explanatory drawing which shows the point of the mold release of the conventional engaging part.

符号の説明Explanation of symbols

M2・・型
Mc・・型の突起
W・・・切り欠きの幅
1・・・ステアリングシャフト
2・・・コラム
3・・・コラムバルジ部
7A・・蛇腹部
8・・・コラムブーツ
11・・カバー部
15・・大径の中空部材
15A・・大径のパイプ状部材
17、27・・溝部(バルジ)
21・・カバー部
24・・スカート部
25・・係合部、大径のパイプ状部材
26・・フランジ
30、30A・・・切り欠き
35・・小径の部材
35A・・小径のパイプ状部材
37・・突起
M2 ··············· Mc ··· Protrusion W ··· Notch width 1 ··· Steering shaft 2 ··· Column 3 · · · Column bulge 7A · · · Bellows 8 · · · Column boot 11 ··· Cover part 15 ··· Large-diameter hollow member 15A · · Large-diameter pipe-like members 17 and 27 ··· Groove (bulge)
21 ·· Cover portion 24 ·· Skirt portion 25 · · Engagement portion, large-diameter pipe-like member 26 · · Flange 30, 30A · · · Notch 35 · · Small-diameter member 35A · · · Small-diameter pipe-like member 37 ..Protrusions

Claims (1)

ステアリングシャフト(1)を包囲するコラム(2)に設けられたコラムブーツ(8)の構造において、前記コラムブーツ(8)は合成樹脂製でモールディング成形されたものであり、変形台形筒状のカバー部(21)の上部に係合部を構成する大径のパイプ状部材(25)が形成され、その大径のパイプ状部材(25)は上端部にフランジ(26)を有する直管部(28)を有し、その直管部(28)には内壁面に環状の溝部(27)が形成され、その上端部から溝部(27)の下方にかけて複数の切り欠き(30)が形成され、その切り欠き(30)は上端部に向かって幅寸法(W)が増加するV字形状で、かつその端部(31R)は半円形状に形成されており、そして前記コラム(2)の外周面には環状の突起(37)が形成され、前記大径のパイプ状部材(25)の内側に挿入されて大径のパイプ部材(25)の内壁面に形成された環状の溝部(27)にその環状の突起(37)が嵌合されていることを特徴とするコラムブーツの構造。   In the structure of the column boot (8) provided in the column (2) surrounding the steering shaft (1), the column boot (8) is made of synthetic resin and molded, and has a deformed trapezoidal cylindrical cover. A large-diameter pipe-like member (25) constituting an engaging portion is formed on the upper portion of the portion (21). 28), an annular groove portion (27) is formed on the inner wall surface of the straight pipe portion (28), and a plurality of notches (30) are formed from the upper end portion to the lower portion of the groove portion (27), The notch (30) has a V shape whose width (W) increases toward the upper end, and the end (31R) is formed in a semicircular shape, and the outer periphery of the column (2) An annular protrusion (37) is formed on the surface, and the front The annular projection (37) is fitted into an annular groove (27) that is inserted inside the large-diameter pipe member (25) and formed on the inner wall surface of the large-diameter pipe member (25). Column boot structure characterized by that.
JP2004317744A 2004-11-01 2004-11-01 Column boot structure Expired - Fee Related JP4446478B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004317744A JP4446478B2 (en) 2004-11-01 2004-11-01 Column boot structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004317744A JP4446478B2 (en) 2004-11-01 2004-11-01 Column boot structure

Publications (2)

Publication Number Publication Date
JP2006125592A JP2006125592A (en) 2006-05-18
JP4446478B2 true JP4446478B2 (en) 2010-04-07

Family

ID=36720517

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004317744A Expired - Fee Related JP4446478B2 (en) 2004-11-01 2004-11-01 Column boot structure

Country Status (1)

Country Link
JP (1) JP4446478B2 (en)

Also Published As

Publication number Publication date
JP2006125592A (en) 2006-05-18

Similar Documents

Publication Publication Date Title
US7611171B2 (en) Piping joint device
US6494494B2 (en) Coupling assembly
JP5613280B2 (en) Dust cover
US20080157525A1 (en) Pipe joint unit and method of manufacturing the same
US7297066B2 (en) Resin joint boot
US20150274008A1 (en) Fuel feeding device for vehicles
JP2019203500A (en) Hose device, outside air pipe and outside air system
CN1320198A (en) Bellows-type cover member
JP3925775B2 (en) Resin tube
JP4446478B2 (en) Column boot structure
US7530575B2 (en) Boot
US10859194B2 (en) Clean air duct and retaining clip and assembly thereof
CN211574432U (en) Outer polygon reinforcing corrugated pipe
JP4192765B2 (en) Constant velocity joint boots
EP0650819B1 (en) A Method and a mould for forming an expansion, such as a socket, in a pipe, and a plastic pipe
JP2008519957A (en) Metal assembly case for heat transfer, especially for automobiles
JP2008215463A (en) Boot for constant velocity universal joint
JP2009023179A (en) Method of manufacturing resin tube with flange
JPH0752167A (en) Plastic-made molding header with connecting pipe suitable for heat exchanger and its production
JPH08121666A (en) Hose with joint part
JP3120059U (en) Pipe connection structure
JP4471719B2 (en) Branched tube and manufacturing method thereof
JP2008169891A (en) Manufacturing method of dust cover
JP2020026841A (en) Grooved pipe
JP4692338B2 (en) Bellows hose

Legal Events

Date Code Title Description
A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20070522

A977 Report on retrieval

Free format text: JAPANESE INTERMEDIATE CODE: A971007

Effective date: 20090417

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20090518

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20090716

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20100118

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20100118

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130129

Year of fee payment: 3

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130129

Year of fee payment: 3

S533 Written request for registration of change of name

Free format text: JAPANESE INTERMEDIATE CODE: R313533

R350 Written notification of registration of transfer

Free format text: JAPANESE INTERMEDIATE CODE: R350

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130129

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20130129

Year of fee payment: 3

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20160129

Year of fee payment: 6

R250 Receipt of annual fees

Free format text: JAPANESE INTERMEDIATE CODE: R250

LAPS Cancellation because of no payment of annual fees