JP3515930B2 - Tubular body connection structure - Google Patents

Tubular body connection structure

Info

Publication number
JP3515930B2
JP3515930B2 JP31097499A JP31097499A JP3515930B2 JP 3515930 B2 JP3515930 B2 JP 3515930B2 JP 31097499 A JP31097499 A JP 31097499A JP 31097499 A JP31097499 A JP 31097499A JP 3515930 B2 JP3515930 B2 JP 3515930B2
Authority
JP
Japan
Prior art keywords
tubular body
pipe
hole
peripheral surface
flat portion
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
JP31097499A
Other languages
Japanese (ja)
Other versions
JP2001132885A (en
Inventor
努 山本
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.)
Japan Climate Systems Corp
Original Assignee
Japan Climate Systems 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 Japan Climate Systems Corp filed Critical Japan Climate Systems Corp
Priority to JP31097499A priority Critical patent/JP3515930B2/en
Publication of JP2001132885A publication Critical patent/JP2001132885A/en
Application granted granted Critical
Publication of JP3515930B2 publication Critical patent/JP3515930B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F9/00—Casings; Header boxes; Auxiliary supports for elements; Auxiliary members within casings
    • F28F9/02—Header boxes; End plates
    • F28F9/0246—Arrangements for connecting header boxes with flow lines
    • F28F9/0256—Arrangements for coupling connectors with flow lines

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【発明の属する技術分野】本発明は、筒状体接続構造、
特に、車両用空調装置のパイプに外均ユニオンやチャー
ジバルブを接続したり、熱交換器にパイプを接続する場
合等に適した筒状体接続構造に関するものである。TECHNICAL FIELD The present invention relates to a tubular body connecting structure,
In particular, the present invention relates to a tubular body connection structure suitable for connecting an external union or a charge valve to a pipe of a vehicle air conditioner or connecting a pipe to a heat exchanger.

【０００２】[0002]

【従来の技術】従来、筒状体接続構造として次のような
ものが提案されている。2. Description of the Related Art Conventionally, the following structure has been proposed as a tubular body connecting structure.

【０００３】実開平３−９１１７７号公報には、車外側
熱交換器であるコンデンサのヘッダパイプに管継手部材
をロウ付けによって接続するための構造が開示されてい
る。この接続構造では、ヘッダパイプと管継手部材との
間にロウ付け用リングを介在させることにより、ヘッダ
パイプの外周面に平坦部を形成することなく、両部材を
ロウ付け可能となっている。Japanese Utility Model Publication No. 3-91177 discloses a structure for connecting a pipe joint member to a header pipe of a condenser, which is a heat exchanger outside the vehicle, by brazing. In this connection structure, by interposing the brazing ring between the header pipe and the pipe joint member, both members can be brazed without forming a flat portion on the outer peripheral surface of the header pipe.

【０００４】実開昭６３−４５２８９号公報には、一方
の管の周壁に形成した周壁に貫通孔を穿設し、この貫通
孔に他方の管を接続してかしめ固定した接続構造が開示
されている。Japanese Utility Model Laid-Open No. 63-45289 discloses a connecting structure in which a through hole is formed in the peripheral wall of one tube and the other tube is connected to the through hole and caulked and fixed. ing.

【０００５】[0005]

【発明が解決しようとする課題】しかしながら、前者の
接続構造では、別部材であるロウ付け用リングが必要と
なり、コストアップを招来する。また、管継手部材の開
口端部がヘッダパイプ内に突出するため、この部分にロ
ウ材が侵入する。管継手部材の突出量や侵入するロウ材
量の管理は不可能であり、ロウ付け後に検査することも
できない。このため、管継手部材の突出量や侵入するロ
ウ材量がヘッダパイプ内での液体の流動にどのような影
響を与えるのか予測できず、品質が安定しない。However, in the former connection structure, a brazing ring, which is a separate member, is required, which causes an increase in cost. Further, since the open end of the pipe joint member projects into the header pipe, the brazing material enters this part. It is impossible to control the amount of protrusion of the pipe joint member and the amount of brazing material that enters, and it is not possible to inspect after brazing. Therefore, it is not possible to predict how the protruding amount of the pipe joint member or the amount of invading brazing material will affect the liquid flow in the header pipe, and the quality is not stable.

【０００６】また、後者の接続構造では、溶接等は不要
となるものの、平坦部を形成することにより管内に膨出
するだけでなく、他方の管のかしめた開口端部も突出す
る。このため、管内の圧力損失が大きく、流動状態に与
える影響を予測できない。Further, in the latter connection structure, although welding or the like is unnecessary, not only the flat portion bulges into the pipe but also the crimped open end of the other pipe projects. Therefore, the pressure loss in the pipe is large, and the effect on the flow state cannot be predicted.

【０００７】そこで、本発明は、筒状体をロウ付けによ
って接続でき、しかも筒状体内への突出及びロウ材の侵
入を適切に防止可能な筒状体接続構造を提供することを
課題とする。Therefore, it is an object of the present invention to provide a tubular body connecting structure which can connect tubular bodies by brazing and which can appropriately prevent the protrusion and the invasion of brazing material into the tubular body. .

【０００８】[0008]

【課題を解決するための手段】本発明は、前記課題を解
決するための手段として、第１筒状体の外周面に穿設し
た貫通孔に、第２筒状体の開口端部をロウ付けによって
接続する筒状体接続構造において、前記第１筒状体の外
周面に、前記貫通孔と、該貫通孔を含み、溶解したロウ
材が第１筒状部の外周面まで流動することを防止可能な
平坦部とを、マンドレルを使用して同時に形成する一
方、前記第２筒状体の開口端部に、前記第１筒状体の貫
通孔に嵌合され、高さが前記第１筒状体の肉厚以下で、
溶解したロウ材が第１筒状部の内周面まで流動すること
を防止可能に形成される段部を形成したものである。According to the present invention, as means for solving the above-mentioned problems, a through hole formed in an outer peripheral surface of a first tubular body is provided with an opening end portion of a second tubular body. In a tubular body connection structure for connecting by attachment, the through hole is formed on the outer peripheral surface of the first tubular body, and the molten brazing material including the through hole flows to the outer peripheral surface of the first tubular portion. And a flat part capable of preventing the same are formed at the same time by using a mandrel, and at the same time, the opening end of the second tubular body is fitted into the through hole of the first tubular body and the height is Below the wall thickness of one tubular body,
The stepped portion is formed so as to prevent the melted brazing material from flowing to the inner peripheral surface of the first tubular portion.

【０００９】この構成により、第１筒状体の外周面に形
成する平坦部には、第２筒状体の開口端部に形成した段
部をロウ付け可能なスペースが形成されていればよいこ
とになる。したがって、平坦部の占有面積を小さく抑え
ることができ、第１筒状体内への突出量を抑制可能とな
る。また、第１筒状体の貫通孔に嵌合する第２筒状体の
段部の突出量は、第１筒状体の肉厚以下に抑えられてい
る。したがって、第１筒状体内に、第２筒状体の段部が
突出したり、ロウ材が侵入することがない。With this structure, the flat portion formed on the outer peripheral surface of the first cylindrical body should have a space for brazing the stepped portion formed at the opening end of the second cylindrical body. It will be. Therefore, the occupied area of the flat portion can be suppressed to be small, and the amount of protrusion into the first cylindrical body can be suppressed. Further, the protrusion amount of the step portion of the second tubular body fitted into the through hole of the first tubular body is suppressed to be equal to or less than the wall thickness of the first tubular body. Therefore, the step portion of the second tubular body does not protrude into the first tubular body, and the brazing material does not enter.

【００１０】前記第１筒状体の貫通孔の内面と、前記第
２筒状体の段部の外面との当接面はテーパ面で構成する
と、接合面積が大きくなり、ロウ付け性を高めることが
できる点で好ましい。If the contact surface between the inner surface of the through hole of the first cylindrical body and the outer surface of the stepped portion of the second cylindrical body is a tapered surface, the joining area is increased and the brazing property is improved. It is preferable because it can be obtained.

【００１１】[0011]

【発明の実施の形態】以下、本発明に係る実施形態を添
付図面に従って説明する。DETAILED DESCRIPTION OF THE INVENTION Embodiments of the present invention will be described below with reference to the accompanying drawings.

【００１２】図１は、本実施形態に係る筒状体接続構造
を示す。この接続構造では、本発明に係る第１筒状体に
相当するパイプ１の途中に貫通孔２が穿設され、この貫
通孔２を含む所定領域に平坦部３が形成されている。平
坦部３は、後述するロウ付け時、ロウ材が外周面を伝っ
て流れることを防止可能な最小領域に形成されている。
このため、パイプ１内への膨出寸法が小さく、パイプ１
内を流動する冷媒の圧力損失に与える影響はごく僅かで
ある。具体的に、外径約１６mm、肉厚約１．２ｍｍのパ
イプ１に対して貫通孔２の内径が約８mmの場合、平坦部
３を約２０ｍｍ径で形成することにより、ロウ材の流れ
を防止しつつ、パイプ１内への膨出寸法を約２mmに抑え
ることができた。FIG. 1 shows a tubular body connecting structure according to this embodiment. In this connection structure, a through hole 2 is formed in the middle of a pipe 1 corresponding to the first tubular body according to the present invention, and a flat portion 3 is formed in a predetermined area including the through hole 2. The flat portion 3 is formed in a minimum area capable of preventing the brazing material from flowing along the outer peripheral surface during brazing described later.
Therefore, the bulging dimension into the pipe 1 is small, and the pipe 1
The influence of the refrigerant flowing inside on the pressure loss is negligible. Specifically, when the inner diameter of the through hole 2 is about 8 mm with respect to the pipe 1 having an outer diameter of about 16 mm and a wall thickness of about 1.2 mm, the flat portion 3 is formed to have a diameter of about 20 mm so that the flow of the brazing material can be increased. While preventing this, the bulging dimension into the pipe 1 could be suppressed to about 2 mm.

【００１３】前記貫通孔２には、本発明に係る第２筒状
体である外均ユニオン４が接続されるようになってい
る。外均ユニオン４は、接続される開口端に段部５が形
成されている。この段部５は、高さが前記パイプ１の肉
厚とほぼ同一又は肉厚以下の寸法となるように形成され
ている。なお、外均ユニオン４は、パイプ１内を流動す
る冷媒圧力を接続ユニオン２０を介して膨張弁に伝達
し、その開度を調整するために利用される。The through hole 2 is adapted to be connected to an outer uniform union 4 which is a second cylindrical body according to the present invention. The outer union 4 has a step 5 formed at the opening end to be connected. The step portion 5 is formed so that the height thereof is substantially the same as or less than the wall thickness of the pipe 1. The outer union 4 is used to transmit the pressure of the refrigerant flowing in the pipe 1 to the expansion valve via the connection union 20 and adjust the opening thereof.

【００１４】前記パイプ１への貫通孔２及び平坦部３の
形成には、図３に示すように、チャック６及びマンドレ
ル７を使用する。チャック６は、パイプ１の貫通孔２及
び平坦部３を形成しようとする部分を含む所定領域の外
周面全体を保持する。チャック６の上面中央部にはパン
チ９を挿入するための挿入孔８が穿設されている。パン
チ９は、平坦部３及び貫通孔２を同時形成するために先
端面中央部に円柱状の突起１０を備えた段付き形状とな
っている。マンドレル７は、パイプ１の内周面にほぼ沿
った断面形状である。マンドレル７の上面には平坦部３
を形成するための平坦受面１１が形成されている。平坦
受面１１の中央部には貫通孔２を形成するための凹部１
２が形成されている。To form the through hole 2 and the flat portion 3 in the pipe 1, a chuck 6 and a mandrel 7 are used as shown in FIG. The chuck 6 holds the entire outer peripheral surface of a predetermined region including the through hole 2 and the flat portion 3 of the pipe 1. An insertion hole 8 for inserting the punch 9 is formed in the center of the upper surface of the chuck 6. The punch 9 has a stepped shape provided with a cylindrical projection 10 at the center of the front end surface in order to simultaneously form the flat portion 3 and the through hole 2. The mandrel 7 has a cross-sectional shape that is substantially along the inner peripheral surface of the pipe 1. The flat part 3 is on the upper surface of the mandrel 7.
The flat receiving surface 11 for forming the is formed. A recess 1 for forming a through hole 2 is formed in the center of the flat receiving surface 11.
2 is formed.

【００１５】前記チャック６及びマンドレル７による貫
通孔２及び平坦部３の形成方法は次の通りである。ま
ず、チャック６によりパイプ１の外周面を保持し、マン
ドレル７をパイプ１の一端開口部から挿入する。マンド
レル７の挿入位置はパイプ１の外周面を保持したチャッ
ク６との位置関係によって正確に設定することができ
る。そこで、チャック６の挿入孔８を介してパンチ９を
降下させ、貫通孔２及び平坦部３を同時に形成する。パ
イプ１は、パンチ９の先端面とマンドレル７の平坦受面
１１との間に挟まれて平坦部３を形成され、突起１０と
凹部１２とで貫通孔２が穿設される。貫通孔２を穿設す
ることにより切除されたパイプ１の一部は前記凹部１２
内に保持されるので、パイプ１からマンドレル７を排出
する際、パイプ１の内周面を傷付けることなく取り出す
ことができる。The method of forming the through hole 2 and the flat portion 3 by the chuck 6 and the mandrel 7 is as follows. First, the outer peripheral surface of the pipe 1 is held by the chuck 6, and the mandrel 7 is inserted from one end opening portion of the pipe 1. The insertion position of the mandrel 7 can be accurately set by the positional relationship with the chuck 6 holding the outer peripheral surface of the pipe 1. Therefore, the punch 9 is lowered through the insertion hole 8 of the chuck 6 to simultaneously form the through hole 2 and the flat portion 3. The pipe 1 is sandwiched between the tip end surface of the punch 9 and the flat receiving surface 11 of the mandrel 7 to form a flat portion 3, and a projection 10 and a recess 12 form a through hole 2. A part of the pipe 1 cut off by forming the through hole 2 is the recess 12
Since the mandrel 7 is held inside, when the mandrel 7 is discharged from the pipe 1, it can be taken out without damaging the inner peripheral surface of the pipe 1.

【００１６】このようにして貫通孔２及び平坦部３を形
成されたパイプ１には外均ユニオン４が接続される。外
均ユニオン４の接続では、その開口端に形成した段部５
を貫通孔２に嵌合する。段部５の高さは、前述の通り、
パイプ１の肉厚とほぼ同じかそれよりも小さい。しか
も、パイプ１に形成される平坦部３により、貫通孔２の
嵌合幅は、平坦部３の表面から段部５の嵌合方向に対し
て均一となる。このため、外均ユニオン４がパイプ１内
に突出することはない。また、外均ユニオン４の開口端
をパイプ１の平坦部３に当接させることができるので、
外均ユニオン４をパイプ１に対して正確に直交するよう
に位置決めして仮固定することが可能である。An outer union 4 is connected to the pipe 1 having the through hole 2 and the flat portion 3 formed in this way. When connecting the outer union 4, the step 5 formed at the open end
Is fitted into the through hole 2. The height of the stepped portion 5 is, as described above,
It is almost equal to or smaller than the wall thickness of the pipe 1. Moreover, due to the flat portion 3 formed on the pipe 1, the fitting width of the through hole 2 is uniform from the surface of the flat portion 3 in the fitting direction of the step portion 5. Therefore, the outer union 4 does not project into the pipe 1. Further, since the open end of the outer union 4 can be brought into contact with the flat portion 3 of the pipe 1,
It is possible to position and temporarily fix the outer union 4 so that it is exactly orthogonal to the pipe 1.

【００１７】仮固定したパイプ１と外均ユニオン４とは
接合部分に固体ロウ材を介在させて高温に加熱すること
によりロウ付けする。このとき、パイプ１には平坦部３
が形成されているので、溶解したロウ材は平坦部３に留
まり、パイプ１の外周面にまで流れることはない。ま
た、外均ユニオン４の段部５がパイプ１内に突出しない
ため、ロウ材がパイプ１内に流入することもない。した
がって、その後のパイプ１内に於ける冷媒の流動に悪影
響を及ぼすこともない。The pipe 1 and the outer union 4 which are temporarily fixed are brazed by heating to a high temperature with a solid brazing material interposed at the joint. At this time, the flat portion 3 is attached to the pipe 1.
Therefore, the melted brazing material remains in the flat portion 3 and does not flow to the outer peripheral surface of the pipe 1. Further, since the step portion 5 of the outer uniform union 4 does not project into the pipe 1, the brazing material does not flow into the pipe 1. Therefore, the subsequent flow of the refrigerant in the pipe 1 is not adversely affected.

【００１８】なお、前記実施形態では、筒状体接続構造
を、パイプ１に外均ユニオン４を接続するものに採用し
たが、他の種々の筒状体の接続に採用可能である。例え
ば、パイプ１に冷媒の充填及び排出のために利用するチ
ャージバルブを接続する場合や、車外側熱交換器である
コンデンサにパイプ１を接続する場合等に採用可能であ
る。In the above embodiment, the tubular body connecting structure is used for connecting the outer uniform union 4 to the pipe 1, but it can be used for connecting various other tubular bodies. For example, it can be adopted when connecting a charge valve used for charging and discharging the refrigerant to the pipe 1 or when connecting the pipe 1 to a condenser which is an exterior heat exchanger.

【００１９】また、パイプ１の貫通孔２の内周面と、外
均ユニオン４の段部５の外周面とをテーパ面で構成する
ようにしてもよい。これによれば、ロウ付け面積を大き
くすることができ、パイプ１と外均ユニオン４との接合
状態を良好なものとすることが可能となる。Further, the inner peripheral surface of the through hole 2 of the pipe 1 and the outer peripheral surface of the step portion 5 of the outer uniform union 4 may be formed as tapered surfaces. According to this, the brazing area can be increased, and the joined state between the pipe 1 and the outer uniform union 4 can be improved.

【００２０】[0020]

【発明の効果】以上の説明から明らかなように、本発明
に係る筒状体接続構造によれば、第１筒状体の外周面
に、貫通孔及び平坦部をマンドレルを使用して同時に形
成したので、加工が容易となり、平坦部の占有領域を管
内の圧力損失が問題とならない必要最小範囲に抑えるこ
とができる。また、第２筒状体の開口端部に、第１筒状
体の肉厚以下で、貫通孔に嵌合される段部を形成したの
で、第２筒状体が第１筒状体内に突出したり、ロウ材が
管内に侵入することなくロウ付けすることができ、管内
の流動状態に悪影響を与えることもない。As is apparent from the above description, according to the tubular body connecting structure of the present invention, the through hole and the flat portion are simultaneously formed on the outer peripheral surface of the first tubular body by using the mandrel. Therefore, the processing is facilitated, and the occupied area of the flat portion can be suppressed to the necessary minimum range in which the pressure loss in the pipe does not pose a problem. In addition, since the step portion that is less than the thickness of the first tubular body and fits into the through hole is formed at the opening end of the second tubular body, the second tubular body is placed inside the first tubular body. The brazing material can be brazed without protruding or the brazing material not penetrating into the pipe, and the flow state in the pipe is not adversely affected.

【００２１】また、第１筒状体の貫通孔の内面と、第２
筒状体の段部の外面との当接面をテーパ面で構成したの
で、接触面積が大きくなってロウ付け性を高めることが
できる。また、テーパ面合わせであるので、貫通孔への
段部の嵌合を容易に行わせることができ、作業性が向上
する。Further, the inner surface of the through hole of the first cylindrical body and the second
Since the contact surface with the outer surface of the step portion of the tubular body is formed by the tapered surface, the contact area is increased and the brazing property can be improved. Further, since the tapered surfaces are aligned, the step portion can be easily fitted into the through hole, and the workability is improved.

【図面の簡単な説明】[Brief description of drawings]

【図１】 本実施形態に係る筒状体接続構造の一例を示
す分解断面図である。FIG. 1 is an exploded cross-sectional view showing an example of a tubular body connection structure according to the present embodiment.

【図２】 図１の組立横断面（ａ）及び縦断面図（ｂ）
である。2 is a cross-sectional view (a) and a vertical cross-sectional view (b) of FIG.
Is.

【図３】 図１に示すパイプに平坦部及び貫通孔を形成
する状態を示す横断面図（ａ）及び縦断面図（ｂ）であ
る。3A and 3B are a horizontal sectional view (a) and a vertical sectional view (b) showing a state in which a flat portion and a through hole are formed in the pipe shown in FIG.

【符号の説明】[Explanation of symbols]

１…パイプ ２…貫通孔 ３…平坦部 ４…外均ユニオン ５…段部 ６…チャック ７…マンドレル ８…挿入孔 ９…パンチ １０…突起 １１…平坦受面 １２…凹部 1 ... pipe 2 ... Through hole 3 ... Flat part 4: Outer Union 5 ... Step 6 ... Chuck 7 ... Mandrel 8 ... Insertion hole 9 ... punch 10 ... Protrusion 11 ... Flat receiving surface 12 ... Recess

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.7 識別記号 ＦＩ Ｆ２５Ｂ 41/00 Ｆ２８Ｆ 9/02 ３０１Ｅ Ｆ２８Ｆ 9/02 ３０１ 9/26 9/26 Ｆ１６Ｌ 41/02 Ｚ (58)調査した分野(Int.Cl.7，ＤＢ名) F16L 41/02 B21D 28/24 B21D 28/28 B23K 1/18 F16L 41/08 F25B 41/00 F28F 9/02 F28F 9/26 ─────────────────────────────────────────────────── ─── Continuation of front page (51) Int.Cl. 7 Identification code FI F25B 41/00 F28F 9/02 301E F28F 9/02 301 9/26 9/26 F16L 41/02 Z (58) Fields investigated ( Int.Cl. 7 , DB name) F16L 41/02 B21D 28/24 B21D 28/28 B23K 1/18 F16L 41/08 F25B 41/00 F28F 9/02 F28F 9/26

Claims (2)

(57)【特許請求の範囲】(57) [Claims] 【請求項１】 第１筒状体の外周面に穿設した貫通孔
に、第２筒状体の開口端部をロウ付けによって接続する
筒状体接続構造において、 前記第１筒状体の外周面に、前記貫通孔と、該貫通孔を
含み、溶解したロウ材が第１筒状部の外周面まで流動す
ることを防止可能な平坦部とを、マンドレルを使用して
同時に形成する一方、 前記第２筒状体の開口端部に、前記第１筒状体の貫通孔
に嵌合され、高さが前記第１筒状体の肉厚以下で、溶解
したロウ材が第１筒状部の内周面まで流動することを防
止可能に形成される段部を形成したことを特徴とする筒
状体接続構造。1. A tubular body connecting structure in which an opening end of a second tubular body is connected to a through hole formed in an outer peripheral surface of the first tubular body by brazing, wherein On the outer peripheral surface, the through hole and a flat portion including the through hole and capable of preventing melted brazing material from flowing to the outer peripheral surface of the first tubular portion are simultaneously formed by using a mandrel. , The opening end of the second tubular body is fitted into the through hole of the first tubular body, and the height is equal to or less than the thickness of the first tubular body, and the melted brazing material is the first tubular body. A tubular body connecting structure, characterized in that a step portion formed so as to prevent the inner peripheral surface of the cylindrical portion from flowing is formed. 【請求項２】 前記第１筒状体の貫通孔の内面と、前記
第２筒状体の段部の外面との当接面はテーパ面で構成し
たことを特徴とする請求項１に記載の筒状体接続構造。2. The contact surface between the inner surface of the through hole of the first tubular body and the outer surface of the stepped portion of the second tubular body is a tapered surface. Tubular body connection structure.
JP31097499A 1999-11-01 1999-11-01 Tubular body connection structure Expired - Fee Related JP3515930B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP31097499A JP3515930B2 (en) 1999-11-01 1999-11-01 Tubular body connection structure

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP31097499A JP3515930B2 (en) 1999-11-01 1999-11-01 Tubular body connection structure

Publications (2)

Publication Number Publication Date
JP2001132885A JP2001132885A (en) 2001-05-18
JP3515930B2 true JP3515930B2 (en) 2004-04-05

Family

ID=18011645

Family Applications (1)

Application Number Title Priority Date Filing Date
JP31097499A Expired - Fee Related JP3515930B2 (en) 1999-11-01 1999-11-01 Tubular body connection structure

Country Status (1)

Country Link
JP (1) JP3515930B2 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE523075C2 (en) * 2001-11-22 2004-03-23 Volvo Aero Corp Process for producing a stator or rotor component
JP6474975B2 (en) * 2014-08-07 2019-02-27 ブリヂストンフローテック株式会社 Brazing structure
KR102607321B1 (en) * 2023-02-21 2023-11-29 윤승호 apparatus of cap

Also Published As

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JP2001132885A (en) 2001-05-18

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