JPH0584420U - Bulge molded product of polygonal pipe for joint member - Google Patents
Bulge molded product of polygonal pipe for joint memberInfo
- Publication number
- JPH0584420U JPH0584420U JP2472092U JP2472092U JPH0584420U JP H0584420 U JPH0584420 U JP H0584420U JP 2472092 U JP2472092 U JP 2472092U JP 2472092 U JP2472092 U JP 2472092U JP H0584420 U JPH0584420 U JP H0584420U
- Authority
- JP
- Japan
- Prior art keywords
- bulge
- molded product
- polygonal
- section
- hollow
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Landscapes
- Branch Pipes, Bends, And The Like (AREA)
Abstract
(57)【要約】
【目的】アルミニウム又はその合金からなる多角中空形
材を素材とし、特に継手部材用その他の構造用として好
適な多角管のバルジ成形品を提供することを目的とす
る。
【構成】予め多角形に押し出されたアルミニウム又はそ
の合金からなる中空形材を素材とし、この多角中空形材
の少なくとも一辺に、バルジ加工による膨出部が形成さ
れてなることを特徴とする継手部材用多角管のバルジ成
形品として構成した。
(57) [Abstract] [Purpose] It is an object of the present invention to provide a bulge molded product of a polygonal tube which is made of aluminum or an alloy thereof and which is suitable for joint members and other structures. A joint characterized in that a hollow shape member made of aluminum or its alloy extruded in a polygonal shape is used as a material, and a bulge portion is formed by bulging on at least one side of the polygonal hollow shape member. It was constructed as a bulge molded product of a polygonal tube for members.
Description
【０００１】[0001]
本考案は、アルミニウム又はその合金からなる多角中空形材を素材とするバル ジ成形品に係り、特に継手部材用その他の構造用としての多角管のバルジ成形品 に関するものである。 The present invention relates to a bulge molded product made of a polygonal hollow shape material made of aluminum or its alloy, and more particularly to a bulge molded product of a polygonal tube for joint members and other structures.
【０００２】[0002]
従来、バルジ成形品は、例えば自転車の車体の管継手にみられるように、素材 として断面円形の中空形材が用いられていた。これに対して、構造用としてのバ ルジ成形品は、中空形材で構成されたフレームに金属板を張り、継手部に別の部 材を取付ける加工が行われることから、断面が円形でなく、角形のものが都合が よく、３角形，４角形，６角形あるいはそれ以上の多角形の中空形材を素材とす るバルジ成形品が望まれる。しかし、アルミニウム又はその合金からなる多角中 空形材を素材とするバルジ加工は、従来行われておらず、これを得ようとすると きは、やむなく断面円形の中空形材を膨張させ、多角の形状になるまで高圧力を かけ成形していた。 Conventionally, a bulge molded product has used a hollow section member having a circular cross section as a material, as seen in, for example, a pipe joint of a bicycle body. On the other hand, a bulging product for structural use has a cross section that is not circular because the metal plate is attached to the frame made of hollow shape material and another member is attached to the joint. It is convenient to use a prismatic shape, and a bulge molded product made of a triangular, quadrangular, hexagonal or higher polygonal hollow material is desired. However, bulge processing using a polygonal hollow material made of aluminum or its alloy has not been conventionally performed, and in order to obtain this, it is unavoidable to expand a hollow material having a circular cross section to form a polygonal shape. High pressure was applied to form the shape.
【０００３】[0003]
このように、断面円形の中空形材を多角に成形加工するものでは、次のような 問題点があった。 (1)多角成形加工に高い圧力を要する。 (2)角形断面とするために、形材の材質として大きな伸びを有するものが要求さ れ、材料の選択が限定される。 (3)高い圧力で成形しても、角形断面の角の部分を鋭角とすることは困難であっ た。 (4)鋭角な多角断面を得ようとする場合、バルジ加工以外の別の加工が付加 的に必要となる。 本考案は、従来技術の有する上記した問題点を解決する新規な継手部材用多角 管のバルジ成形品を提供することを目的とする。 As described above, in the case where the hollow material having a circular cross section is formed into a polygon, there are the following problems. (1) High pressure is required for polygonal forming. (2) In order to have a rectangular cross section, it is required that the material of the profile has a large elongation, and the selection of the material is limited. (3) Even when molding with high pressure, it was difficult to make the corners of the rectangular cross section acute. (4) To obtain an acute polygonal cross section, another process other than bulge process is additionally required. It is an object of the present invention to provide a new bulge molded product of a polygonal pipe for a joint member, which solves the above-mentioned problems of the prior art.
【０００４】[0004]
この目的を達成するための具体的手段として、本考案は、予め多角形に押し出 されたアルミニウム又はその合金からなる中空形材を素材とし、この多角中空形 材の少なくとも一辺に、バルジ加工による膨出部が形成されてなることを特徴と する継手部材用多角管のバルジ成形品を提案するものである。 As a concrete means for achieving this object, the present invention uses a hollow shape member made of aluminum or its alloy extruded in a polygonal shape in advance, and at least one side of the polygonal hollow shape member is subjected to bulging. A bulge-molded product of a polygonal tube for a joint member, which is characterized in that a bulged portion is formed.
【０００５】[0005]
予め多角形に押し出されたアルミニウム又はその合金からなる素材管は、その 軸方向に圧縮されると共に、内部から液圧が加えられて、膨出部を形成する。 The material tube made of aluminum or its alloy extruded in a polygonal shape in advance is compressed in the axial direction and is subjected to hydraulic pressure from the inside to form a bulged portion.
【０００６】[0006]
以下に、本考案の実施例を説明する。図１の (a)は、中空四角形断面を有する アルミニウム押出形材１の一辺に、バルジ加工による膨出部２を形成したＴ型バ ルジ成形品１０の斜視図である。製造工程の一例について示すと、外径25mm×25 mm，厚さ 2mmの中空四角形断面を有し、材質 A6063-Oであるアルミニウム押出形 材を素材管（材質 A1050-Oのものでもよい。）とし、これを図４に示すような２ つ割の金型３，３の間に保持し、金型３，３を上下よりクランプした後に、軸方 向に３〜９ｔｆの圧縮力をかけると共に、管内面に液圧を直接作用せしめる。負 荷内圧は 150〜 400Kgｆ／cm2 である。加圧体である作動油としては、イソブチ レンを主体とし、一部ｎ−ブテンが反応した共重合物質で、透明、不純物を含ま ない液状ポリマーが好適であり、具体的には日本石油株式会社製の日石ポリブテ ン HV-50を用いた。また、素材管の外表面の潤滑剤としては、コーキ油業株式会 社から市販されているアルミニウム及びその合金用の特殊塑性加工油の各グレー ドの中から COLEX AD-3300を選定し用いた。この結果、膨出部長さ25mmの良好な 四角形断面のＴ型バルジ成形品を得ることができた。An embodiment of the present invention will be described below. FIG. 1 (a) is a perspective view of a T-shaped bulge molded product 10 in which a bulging portion 2 formed by bulging is formed on one side of an aluminum extruded profile 1 having a hollow quadrangular cross section. As an example of the manufacturing process, an aluminum extruded material with a hollow square cross section with an outer diameter of 25 mm × 25 mm and a thickness of 2 mm and a material of A6063-O is a material pipe (a material of A1050-O may be used). Then, hold this between two molds 3 and 3 as shown in FIG. 4, clamp the molds 3 and 3 from above and below, and apply a compressive force of 3 to 9 tf in the axial direction. , Apply hydraulic pressure directly to the inner surface of the pipe. The internal load pressure is 150 to 400 kgf / cm 2 . As a hydraulic fluid that is a pressurizing body, a liquid polymer mainly composed of isobutylene and partially reacted with n-butene, which is transparent and free of impurities, is preferable. Specifically, Nippon Oil Co., Ltd. Nisseki Polybutene HV-50 manufactured by Nippon Steel Co., Ltd. was used. As the lubricant for the outer surface of the material pipe, COLEX AD-3300 was selected from each grade of special plastic working oil for aluminum and its alloys, which is commercially available from Koki Oil Industry Co., Ltd. . As a result, it was possible to obtain a good T-shaped bulge molded product having a quadrangular cross section and a bulge length of 25 mm.
【０００７】 図１の (b)は、中空四角形断面を有するアルミニウム押出形材１の相対向する 二辺に、バルジ加工による膨出部２，２を形成した十字（プラス）型バルジ成形 品１０′の斜視図である。製造条件は、軸方向圧縮力を 1.5〜 6.5ｔｆ、負荷内 圧を 100〜 300Kgｆ／cm2 とした以外は、図１の (a)に示すＴ型バルジ成形品の 場合と同一として、バルジ加工を行った。この結果、膨出部長さ25mmの良好な四 角形断面の十字（プラス）型バルジ成形品を得ることができた。FIG. 1B is a cross-shaped (bulge) bulge molded product 10 in which bulged portions 2 and 2 are formed by bulge processing on two opposite sides of an aluminum extruded profile 1 having a hollow quadrangular cross section. It is a perspective view of '. Production conditions, 1.5 the axial compressive force 6.5Tf, except that the load in pressure and 100 to 300 Kgf / cm 2, as the same as the case of the T-type bulge molded article shown in FIG. 1 (a), bulging I went. As a result, it was possible to obtain a cross-shaped (plus) bulge molded product having a good rectangular cross-section with a bulge length of 25 mm.
【０００８】 図２は、中空六角形断面を有するアルミニウム押出形材１′の複数の辺に、バ ルジ加工による膨出部２，２を形成した複数膨出型バルジ成形品２０の斜視図で あり、図１の (a)及び (b)に準じて製造されたものである。FIG. 2 is a perspective view of a multi-bulge bulge molded product 20 in which bulging portions 2 and 2 are formed by bulging on a plurality of sides of an aluminum extruded profile 1 ′ having a hollow hexagonal cross section. Yes, it was manufactured according to (a) and (b) of FIG.
【０００９】 図３は、中空四角形断面を有するアルミニウム押出形材１の相対向する二辺に おける軸方向の中央部付近で径大部（ふくらみ）２′，２′を形成した拡管バル ジ成形品３０の斜視図であり、同様に、図１の (a)及び (b)に準じて製造された ものである。この拡管バルジ成形品３０は、このままの状態で加工を施して使用 してもよいし、径大部２′，２′を除く軸方向の両端部を、他の中空部材に嵌合 して接続部材として使用してもよい。FIG. 3 is a pipe expansion bulge forming in which large diameter portions (bulges) 2 ', 2'are formed near the central portion in the axial direction on two opposite sides of an aluminum extruded profile 1 having a hollow quadrangular cross section. It is a perspective view of the article 30, and is similarly manufactured according to (a) and (b) of FIG. The expanded bulge molded product 30 may be processed as it is and used, or both ends in the axial direction except the large diameter parts 2'and 2'are fitted and connected to another hollow member. You may use it as a member.
【００１０】 上記の各実施例において、多角管をバルジ成形し、成形終了後、成形品を取出 す際に、抜けやすくするため、図４の２つ割りの金型３，３の内面にわずかな角 度（いわゆる抜き勾配）θを形成しておけば、より生産性が向上する。In each of the above-described embodiments, the polygonal tube is bulge-molded, and after the molding is completed, when the molded product is taken out, the inner surface of the mold halves 3 and 3 of FIG. By forming a large angle (so-called draft) θ, productivity is further improved.
【００１１】 なお、本明細書における多角管とは、正確な中空多角形断面のものは当然のこ と、少なくとも各辺が直線状をなしていれば、角の部分が多少曲面を有するもの を含んだ管を意味するものとする。It should be noted that the polygonal tube in the present specification is, of course, an accurate hollow polygonal cross-section, or one having a slightly curved corner portion if at least each side is linear. It shall mean the containing tube.
【００１２】[0012]
本考案によれば、多角中空形材にそのままバルジ加工による膨出部を形成した ので、下記のような効果がある。 (1)従来のように、断面円形の中空形材を高い成形圧力で多角に成形加工する必 要がなく、特に、素材がアルミニウム又はその合金であるので、押出成形によっ て任意の角形断面形状が得られる。 (2)角形断面の角の部分が鋭角なバルジ成形品を得ることができる。（比較的厚 肉の成形品でも製造が可能である。） (3)鋭角な多角断面を得ようとする場合、バルジ加工以外の別の加工を必要とし ない。 (4)断面正方形や長方形等の中空押出形材で、その一辺又は複数辺より膨出部を 成形する場合、同一平面内で材料が移動する形状では成形が容易に行われる。 以上説明したように、本考案にかかるバルジ成形品は、特に継手部材用その他 の構造用として好適なものであり、実用上の効果大である。 According to the present invention, since the bulging portion is directly formed on the polygonal hollow member by bulging, the following effects can be obtained. (1) It is not necessary to form a hollow section with a circular cross section into a polygon with a high forming pressure as in the conventional case.In particular, since the material is aluminum or its alloy, it can be extruded into an arbitrary rectangular section. The shape is obtained. (2) It is possible to obtain a bulge-molded product in which the corners of the rectangular cross section are sharp. (A relatively thick molded product can also be manufactured.) (3) When obtaining an acute polygonal cross section, no other processing other than bulge processing is required. (4) When a bulging portion is formed from one or more sides of a hollow extruded shape member having a square or rectangular cross section, the shape can be easily formed if the material moves in the same plane. As described above, the bulge molded product according to the present invention is particularly suitable for joint members and other structures, and has a large practical effect.
【００１３】 なお、先行技術として、特開昭５８−３７３０号公報に開示されている模様付 き中空形材及びその製造方法がみられるが、この中空形材は、表面に凹凸模様を 付けて、装飾効果を与える建築分野において用いられるものであり、本考案の如 く構造部材ではない。すなわち、本考案において対象とする分野は、主として管 の継手用等、多角管の膨出部に別の部材を差し込んで溶接したり、管に板材を張 るといった用途であって、上記の先行技術とは、利用すべき産業分野、構成及び 作用効果をそれぞれ異にするものである。As a prior art, there is a hollow section with a pattern and a method for producing the same, which is disclosed in Japanese Patent Laid-Open No. 58-3730, and this hollow section has an uneven pattern on its surface. It is used in the field of construction that gives a decorative effect, and is not a structural member as in the present invention. In other words, the field to which the present invention is applied is mainly for joints of pipes and the like, in which another member is inserted into a bulging portion of a polygonal pipe and welded, or a plate material is stretched over the pipe. Technology has different industrial fields, configurations and operational effects that should be used.
【図１】(a)及び (b)は、本考案の実施例図であって、
中空四角形断面を有するＴ型及び十字（プラス）型のバ
ルジ成形品の斜視図である。1A and 1B are schematic diagrams of an embodiment of the present invention,
FIG. 3 is a perspective view of a T-shaped and cross (plus) bulge molded product having a hollow quadrangular cross section.
【図２】本考案の実施例図であって、中空六角形断面を
有する複数膨出型のバルジ成形品の斜視図である。FIG. 2 is a perspective view of an embodiment of the present invention, in which a plurality of bulging bulge molded products having a hollow hexagonal cross section are shown.
【図３】本考案の実施例図であって、中空四角形断面を
有する形材の軸方向の中央部付近で径大部を形成した拡
管バルジ成形品の斜視図である。FIG. 3 is an embodiment of the present invention, and is a perspective view of a pipe expansion bulge molded product in which a large-diameter portion is formed in the vicinity of the central portion in the axial direction of a shape having a hollow quadrangular cross section.
【図４】本考案のバルジ加工を施すための２つ割の金型
の断面図である。FIG. 4 is a cross-sectional view of a mold for bulging according to the present invention.
１，１′…中空四角形断面を有するアルミニウム押出形
材 ２ …バルジ加工による膨出部 ２′ …バルジ加工による拡径部 ３ …金型 １０，１０′、２０、３０…バルジ成形品1, 1 '... Aluminum extruded shape member having a hollow square cross section 2 ... Bulging portion 2' ... Bulge diameter expansion portion 3 ... Mold 10, 10 ', 20, 30 ... Bulge molded product
───────────────────────────────────────────────────── フロントページの続き (72)考案者 佐々本 隆 静岡県庵原郡蒲原町蒲原１丁目34番１号株 式会社日軽技研内 ─────────────────────────────────────────────────── ─── Continued Front Page (72) Inventor Takashi Sasamoto 1-34-1 Kambara, Kambara-cho, Anbara-gun, Shizuoka
Claims (1)
又はその合金からなる中空形材を素材とし、この多角中
空形材の少なくとも一辺に、バルジ加工による膨出部が
形成されてなることを特徴とする継手部材用多角管のバ
ルジ成形品。1. A hollow shape member made of aluminum or its alloy extruded in a polygonal shape in advance is used as a material, and a bulge portion is formed by bulging on at least one side of this polygonal hollow shape member. A bulge molded product of a polygonal tube for joint members.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992024720U JP2555750Y2 (en) | 1992-04-17 | 1992-04-17 | Joint member |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1992024720U JP2555750Y2 (en) | 1992-04-17 | 1992-04-17 | Joint member |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0584420U true JPH0584420U (en) | 1993-11-16 |
| JP2555750Y2 JP2555750Y2 (en) | 1997-11-26 |
Family
ID=12146001
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1992024720U Expired - Fee Related JP2555750Y2 (en) | 1992-04-17 | 1992-04-17 | Joint member |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2555750Y2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011158923A1 (en) | 2010-06-17 | 2011-12-22 | 新日本製鐵株式会社 | Structural member |
| EP3124332A4 (en) * | 2014-03-26 | 2017-11-29 | Toyoda Iron Works Co., Ltd. | Method for manufacturing vehicle structural member |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109521A (en) * | 1979-02-14 | 1980-08-23 | Nippon Baruji Kogyo Kk | Forming method for y-type pipe joint from pipe blank |
| JPS583730A (en) * | 1981-06-26 | 1983-01-10 | Nippon Alum Mfg Co Ltd:The | Hollow mold material having pattern and its manufacture |
| JPS5973130A (en) * | 1982-10-19 | 1984-04-25 | Takayasu Kogyo Kk | Production of branch pipe for pipe joint |
-
1992
- 1992-04-17 JP JP1992024720U patent/JP2555750Y2/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55109521A (en) * | 1979-02-14 | 1980-08-23 | Nippon Baruji Kogyo Kk | Forming method for y-type pipe joint from pipe blank |
| JPS583730A (en) * | 1981-06-26 | 1983-01-10 | Nippon Alum Mfg Co Ltd:The | Hollow mold material having pattern and its manufacture |
| JPS5973130A (en) * | 1982-10-19 | 1984-04-25 | Takayasu Kogyo Kk | Production of branch pipe for pipe joint |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011158923A1 (en) | 2010-06-17 | 2011-12-22 | 新日本製鐵株式会社 | Structural member |
| EP3421149A1 (en) | 2010-06-17 | 2019-01-02 | Nippon Steel & Sumitomo Metal Corporation | Structural member |
| EP3124332A4 (en) * | 2014-03-26 | 2017-11-29 | Toyoda Iron Works Co., Ltd. | Method for manufacturing vehicle structural member |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2555750Y2 (en) | 1997-11-26 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| LAPS | Cancellation because of no payment of annual fees |