JPH11156461A - Manufacture of cylindrical body - Google Patents

Manufacture of cylindrical body

Info

Publication number
JPH11156461A
JPH11156461A JP32321397A JP32321397A JPH11156461A JP H11156461 A JPH11156461 A JP H11156461A JP 32321397 A JP32321397 A JP 32321397A JP 32321397 A JP32321397 A JP 32321397A JP H11156461 A JPH11156461 A JP H11156461A
Authority
JP
Japan
Prior art keywords
curved
cylindrical
guide hole
hole
caulking
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
JP32321397A
Other languages
Japanese (ja)
Inventor
Takeo Fukushima
Kunihiko Iyama
Takeji Shimizu
Tadashi Yamazaki
圀彦 井山
正 山崎
武治 清水
健夫 福島
Original Assignee
Toyo Denso Co Ltd
東洋電装株式会社
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 Toyo Denso Co Ltd, 東洋電装株式会社 filed Critical Toyo Denso Co Ltd
Priority to JP32321397A priority Critical patent/JPH11156461A/en
Publication of JPH11156461A publication Critical patent/JPH11156461A/en
Pending legal-status Critical Current

Links

Abstract

PROBLEM TO BE SOLVED: To improve the dimensional accuracy and to reduce the manufacturing cost of a cylindrical body while easily manufacturing it at the time of manufacturing the cylindrical body. SOLUTION: A cylindrical body is manufactured by successively passing through a first step where plural recessed parts 4 to which engagement hole parts where the width is expanded wider than a guide hole part at an inner end of the guide hole part while being extended in straight along one direction and opening an outer end is consecutively formed and plural projecting parts 5 having the length larger than the width capable of being fitted to each guide hole part and the length of the guide hole part are formed by making them corresponding mutually to the both end parts along one direction of a rectangular plate stock, a second step where the plate stock is pressed in a semi-cylindrical shape to form a curved stock 6 so that the above- mentioned one direction becomes the circumferential direction and a third step where each projecting part 5 is fitted to a guide part of the recessed part 4 corresponding to each other at the both ends in the circumferential direction of a pair of the curved stocks 6, in the state that the curved stocks 6 are temporarily assembled in a cylinder, the tip part of each projecting part 5 is caulked to be engaged with an engagement part.

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、モータフレーム等
の円筒体の製造方法に関する。
The present invention relates to a method for manufacturing a cylindrical body such as a motor frame.
【0002】[0002]
【従来の技術】従来、かかる円筒体を製造するにあたっ
ては、パイプを適宜切断するようにしたものと、板状素
材を円筒状に加工するようにしたものとがある。
2. Description of the Related Art Conventionally, when manufacturing such a cylindrical body, there are a type in which a pipe is appropriately cut and a type in which a plate-like material is processed into a cylindrical shape.
【0003】[0003]
【発明が解決しようとする課題】ところが、パイプの切
断によるものでは、寸法精度の優れた円筒体を製造する
ことができるものの、多大な加工工数および加工時間が
必要となり、製造コストの増大を招くことになる。また
板状素材を円筒状に加工するものでは、製造コストの低
減が可能ではあるが、円筒体の真円度および寸法精度の
低下を余儀なくされる。
However, in the case of cutting a pipe, a cylindrical body having excellent dimensional accuracy can be manufactured, but a large number of processing steps and processing time are required, which leads to an increase in manufacturing cost. Will be. When the plate-like material is processed into a cylindrical shape, the manufacturing cost can be reduced, but the roundness and the dimensional accuracy of the cylindrical body must be reduced.
【0004】本発明は、かかる事情に鑑みてなされたも
のであり、容易に製造することを可能とした上で、寸法
精度の向上および製造コストの低減を図り得るようにし
た円筒体の製造方法を提供することを目的とする。
[0004] The present invention has been made in view of the above circumstances, and is a method of manufacturing a cylindrical body that can be easily manufactured and that can improve dimensional accuracy and reduce manufacturing cost. The purpose is to provide.
【0005】[0005]
【課題を解決するための手段】上記目的を達成するため
に、本発明は、一方向に沿って直線状に延びて外端を開
口したガイド孔部ならびに該ガイド孔部よりも幅を拡大
してガイド孔部の内端に連なる係合孔部から成る複数の
凹部と、各ガイド孔部に嵌合し得る幅およびガイド孔部
の長さよりも大なる長さを有する複数の突部とを、直角
四辺形状の板素材の前記一方向に沿う両端部に相互に対
応させて形成する第1ステップと、前記一方向が周方向
となるようにして前記板素材を半円筒状にプレス加工し
て彎曲素材を形成する第2ステップと、一対の彎曲素材
の周方向両端で相互に対応した凹部のガイド孔部に各突
部を嵌合せしめて両彎曲素材を円筒状に仮に組み合わせ
た状態で各突部の先端部をかしめて係合孔部に係合させ
る第3ステップとを順次経過させて、円筒体を製造する
ことを特徴とする。
In order to achieve the above object, the present invention provides a guide hole which extends linearly in one direction and has an open outer end, and a width which is larger than that of the guide hole. And a plurality of projections having a width that can be fitted into each guide hole and a length that is larger than the length of the guide hole. A first step of mutually forming both ends along the one direction of the rectangular quadrilateral plate material, and pressing the plate material into a semi-cylindrical shape so that the one direction is a circumferential direction. A second step of forming the curved material by bending each of the projections into the guide holes of the concave portions corresponding to each other at both circumferential ends of the pair of curved materials, and temporarily combining the two curved materials into a cylindrical shape. A third step of caulking the tip of the projection and engaging the engagement hole. By sequentially passed, it is characterized in that to produce a cylindrical body.
【0006】このような製造方法によれば、相互に対応
する凹部および突部を複数ずつ両端部に備える板素材を
形成する第1ステップ、板素材のプレス加工により彎曲
素材を形成する第2ステップ、ならびに一対の彎曲素材
を相互に仮に組み合わせた状態でかしめる第3ステップ
を順次経過するだけで、円筒体を容易にかつ安価に製造
することができる。しかも両彎曲素材の内、外面の彎曲
半径が円筒状である円筒体の内、外半径となるものであ
り、両彎曲素材をその内、外面の彎曲半径を矯正しつつ
プレス加工することができ、また彎曲素材の周長で円筒
体の内、外半径を管理することができるので、円筒体の
寸法精度を優れたものとすることができる。
According to such a manufacturing method, a first step of forming a plate material having a plurality of mutually corresponding recesses and protrusions at both ends, and a second step of forming a curved material by pressing the plate material The cylindrical body can be easily and inexpensively manufactured only by sequentially passing through the third step of caulking in a state where the pair of curved materials are temporarily combined with each other. In addition, the outer radius of the curved material is the outer radius of the cylindrical body whose outer surface has a curved radius, and the bi-curved material can be pressed while correcting the inner and outer curved radii. In addition, since the inner and outer radii of the cylindrical body can be controlled by the circumferential length of the curved material, the dimensional accuracy of the cylindrical body can be improved.
【0007】[0007]
【発明の実施の形態】以下、本発明の実施の形態を、添
付図面に示した本発明の一実施例に基づいて説明する。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The embodiments of the present invention will be described below based on one embodiment of the present invention shown in the accompanying drawings.
【0008】図1ないし図4は本発明の一実施例を示す
ものであり、図1はモータフレームの側面図、図2は板
素材の平面図、図3はモータフレーム製造過程での第3
ステップの操作を説明するための断面図、図4は図3の
4矢視方向から見たかしめ具の側面図である。
FIGS. 1 to 4 show an embodiment of the present invention. FIG. 1 is a side view of a motor frame, FIG. 2 is a plan view of a plate material, and FIG.
FIG. 4 is a cross-sectional view for explaining the operation of the step, and FIG. 4 is a side view of the swaging tool viewed from the direction of arrow 4 in FIG.
【0009】先ず図1において、円筒体としてのモータ
フレーム1は磁性金属により円筒状に形成されるもので
あり、該モータフレーム1は、次に説明する第1ないし
第3ステップの処理を順次経過することにより製造され
る。
First, in FIG. 1, a motor frame 1 as a cylindrical body is formed of a magnetic metal in a cylindrical shape, and the motor frame 1 sequentially goes through the first to third steps described below. It is manufactured by doing.
【0010】図2において、第1ステップでは、磁性金
属から成る直角四辺形状の板素材2の一方向3に沿う両
端部に、複数たとえば2つの凹部4,4と、それらの凹
部4,4に個別に対応する複数たとえば2つの突部5,
5を形成するとともに、前記一方向3と直交する方向に
沿う板素材2の両端部において一方向3に沿う方向での
中央部に位置決め用の突部14,14を形成する。
In FIG. 2, in a first step, a plurality of, for example, two concave portions 4, 4 and two concave portions 4, 4 are formed at both ends along one direction 3 of a rectangular quadrangular plate material 2 made of magnetic metal. A plurality of individually corresponding, for example, two projections 5,
5 are formed, and positioning projections 14, 14 are formed at both ends of the plate material 2 along the direction orthogonal to the one direction 3 at the center in the direction along the one direction 3.
【0011】各凹部4,4は、前記一方向3に沿って長
さL1だけ直線状に延びて外端を開口したガイド孔部4
aと、ガイド孔部4aの幅W1よりも幅を拡大してガイ
ド孔部4aの内端に連なる係合孔部4bとから成るもの
であり、係合孔部4bの内端が閉じられる。
Each of the recesses 4, 4 is linearly extended along the one direction 3 by the length L 1, and has a guide hole 4 having an open outer end.
a and an engagement hole 4b which is larger in width than the width W1 of the guide hole 4a and is continuous with the inner end of the guide hole 4a, and the inner end of the engagement hole 4b is closed.
【0012】また各突部5,5は、前記ガイド孔部4a
に嵌合し得る幅W2を有して前記一方向3に沿う外方側
に板素材2から突出されるものであり、各突部5,5の
前記一方向3に沿う長さL3は、凹部4,4の一方向3
に沿う長さL2よりも小さく、かつガイド孔部4aの長
さL1よりも大きく設定される。
Each of the projections 5, 5 is formed in the guide hole 4a.
Has a width W2 that can be fitted to the outside of the plate material 2 along the one direction 3, and the length L3 of each projection 5, 5 along the one direction 3 is: One-way 3 of recesses 4, 4
Is set smaller than the length L2 along the length of the guide hole 4a.
【0013】図3を併せて参照して、第2ステップで
は、前記一方向3が周方向となるようにして板素材2を
半円筒状にプレス加工して彎曲素材6を形成する。
Referring also to FIG. 3, in a second step, a curved material 6 is formed by pressing the plate material 2 into a semi-cylindrical shape so that the one direction 3 is a circumferential direction.
【0014】第3ステップでは、一対の彎曲素材6,6
の周方向両端で相互に対応した凹部4,4のガイド孔部
4a…に各突部5,5を嵌合せしめて両彎曲素材6,6
を円筒状に仮に組み合わせ、各突部5,5の先端部をか
しめて係合孔部4b…に係合させる。
In the third step, a pair of curved materials 6, 6
The protrusions 5, 5 are fitted into the guide holes 4a of the recesses 4, 4 corresponding to each other at both ends in the circumferential direction of
Are temporarily combined into a cylindrical shape, and the tip portions of the projections 5 and 5 are caulked to engage with the engagement holes 4b.
【0015】上述のかしめ処理にあたっては、仮に組み
合わされた状態にある両彎曲素材6,6の内面を受ける
固定の受け部7と、各突部5…の先端部を受け部7側に
押圧する押圧力を作用せしめるかしめ具8とが用いられ
る。
In the caulking process described above, a fixed receiving portion 7 for receiving the inner surfaces of the two curved materials 6 and 6 in a temporarily assembled state, and a tip portion of each of the projections 5 are pressed toward the receiving portion 7 side. A crimping tool 8 for applying a pressing force is used.
【0016】図4を併せて参照して、かしめ具8は、棒
状に延びるかしめ具本体9の先端にかしめ矢10が段差
をなして連設されて成るものであり、かしめ矢10の外
表面は、先端を尖鋭化させた平坦な前面10aと、先端
を尖鋭化させた平坦な後面10bと、前面10aおよび
後面10bの両側端間を連結する一対の側面10c,1
0cと、前面10a、後面10bおよび両側面10c,
10cの先端が共通に連結される一対の傾斜面10d,
10dとで構成され、両傾斜面10d,10dの先端連
設部は、前面10aから後面10b側に向うにつれて後
上がりに傾斜している。
Referring also to FIG. 4, the swaging tool 8 is formed by connecting a swaging arrow 10 at the tip of a bar-shaped swaging tool body 9 with a step to the outer surface of the swaging tool 10. Is a flat front surface 10a having a sharpened tip, a flat rear surface 10b having a sharpened tip, and a pair of side surfaces 10c, 1 connecting between both ends of the front surface 10a and the rear surface 10b.
0c, front surface 10a, rear surface 10b and both side surfaces 10c,
A pair of inclined surfaces 10d, to which the tips of 10c are commonly connected,
10d, and the end continuous portion of the two inclined surfaces 10d, 10d is inclined upward and rearward from the front surface 10a toward the rear surface 10b.
【0017】矢印11で示すかしめ具8の押圧方向と直
交する仮想平面に対して前記後面10bの先端がなす角
度αならびに前面10aの先端がなす角度βは、α≦β
となるように設定される。またかしめ具8によるかしめ
にあたっては、前面10aを突部5の先端側に配置した
かしめ具8の中心線12が、相互に仮に組み合わされた
状態にある両彎曲素材6,6の周方向両端の当接部を結
ぶ直線13から偏位量δ1だけずれた位置で直線13と
平行となるように、かしめ具8が配置され、その状態で
かしめ具8におけるかしめ矢10の前面10aが、突部
5の先端から前記直線13側に偏位量δ2だけずれた位
置となるようにかしめ矢10が形成される。さらにかし
め具8の中心線12と、仮組み状態にある両彎曲素材
6,6の外面との交点Pでの接線が、前記仮想平面とな
す角度をσとしたときに、かしめ具8におけるかしめ矢
10の両傾斜面10d,10dの先端連設部が前記仮想
平面となす角度γは、γ>σとなるように設定される。
The angle α formed by the front end of the rear surface 10b and the angle β formed by the front end of the front surface 10a with respect to an imaginary plane orthogonal to the pressing direction of the caulking device 8 indicated by the arrow 11, are α ≦ β.
Is set to be In caulking by the caulking device 8, the center line 12 of the caulking device 8 having the front surface 10a disposed on the tip side of the protrusion 5 is provided at both ends in the circumferential direction of the bi-curved materials 6, 6 in a state where they are temporarily combined with each other. The caulking tool 8 is arranged so as to be parallel to the straight line 13 at a position shifted from the straight line 13 connecting the contact portions by the deviation amount δ1, and in this state, the front surface 10a of the caulking arrow 10 in the caulking tool 8 is projected. The caulking arrow 10 is formed so as to be shifted from the tip of No. 5 toward the straight line 13 by the deviation amount δ2. Furthermore, when the angle formed by the tangent at the intersection P between the center line 12 of the caulking tool 8 and the outer surfaces of the two curved materials 6 and 6 in the temporarily assembled state with the virtual plane is σ, the caulking of the caulking tool 8 is performed. The angle γ formed by the end continuous portion of the two inclined surfaces 10d and 10d of the arrow 10 with the virtual plane is set so that γ> σ.
【0018】このようなかしめ具8を用いたかしめ処理
を行なうと、かしめ具8の押圧方向11への押圧に応じ
て、先ず前面10aの先端が突部5の先端からδ2だけ
ずれた位置に当接して、突部5を凹部4に嵌合する方向
に押圧するので、凹部4側の彎曲素材6(図3の左側の
彎曲素材6)に、突部5側の彎曲素材6(図3の右側の
彎曲素材6)を近付ける方向の力が作用し、両彎曲素材
6,6の周方向端部が緊密に接触することになる。また
角度σ<γと設定されていることにより、凹部4の係合
孔部4bに肉がまわって突部5の先端が係合孔部4bに
確実に係合されることになる。さらにα≦βであること
により、ガイド孔部4aに対応する位置での突部5に両
側に拡がる方向で作用する力は小さくなるが、傾斜面1
0d,10dによって突部5が両側に拡げられてモータ
フレーム1の軸方向に沿う両彎曲素材6,6のずれが矯
正され、突部5および凹部4が相互にかしめられて確実
な係合が達成される。これにより、モータフレーム1に
振動、組立ておよび輸送等によって作用する三次元の荷
重に充分に耐える結合強度を得ることができる。
When the caulking process using the caulking tool 8 is performed, the tip of the front surface 10a is first shifted to a position shifted by δ2 from the tip of the projection 5 in response to the pressing of the caulking tool 8 in the pressing direction 11. The projection 5 is pressed in the direction in which the projection 5 is fitted into the recess 4, so that the curved material 6 on the projection 5 side (the curved material 6 on the left side in FIG. 3) and the curved material 6 on the projection 5 side (FIG. The force in the direction of approaching the right curved material 6) acts on the right and left ends of the two curved materials 6 and 6 in close contact with each other. Further, by setting the angle σ <γ, the flesh turns around the engaging hole 4b of the concave portion 4 and the tip of the projection 5 is securely engaged with the engaging hole 4b. Further, when α ≦ β, the force acting on the protrusion 5 at the position corresponding to the guide hole 4a in the direction of spreading to both sides is reduced, but the slope 1
The protrusions 5 are expanded to both sides by Od and 10d, the displacement of the bi-curved materials 6 and 6 along the axial direction of the motor frame 1 is corrected, and the protrusions 5 and the recesses 4 are caulked with each other to ensure reliable engagement. Achieved. As a result, it is possible to obtain a joint strength that sufficiently withstands a three-dimensional load acting on the motor frame 1 due to vibration, assembly, transportation, and the like.
【0019】次にこの実施例の作用について説明する
と、モータフレーム1を製造するにあたって、相互に対
応する凹部4,4および突部5,5を複数ずつ両端部に
備える板素材2を形成する第1ステップ、板素材2のプ
レス加工により彎曲素材6を形成する第2ステップ、な
らびに一対の彎曲素材6,6を相互に仮に組み合わせた
状態でかしめる第3ステップを順次経過するだけで、モ
ータフレーム1を製造するようにしているので、モータ
フレーム1を容易にかつ安価に製造することができる。
Next, the operation of this embodiment will be described. In manufacturing the motor frame 1, a plate material 2 having a plurality of recesses 4, 4 and projections 5, 5 corresponding to each other at both ends is formed. The motor frame is formed only by sequentially passing through one step, a second step of forming the curved material 6 by pressing the plate material 2, and a third step of caulking the pair of curved materials 6, 6 in a temporarily combined state. Since the motor frame 1 is manufactured, the motor frame 1 can be manufactured easily and at low cost.
【0020】しかも彎曲素材6の内、外面の彎曲半径は
円筒状であるモータフレーム1の内、外半径となるもの
であり、第2ステップでは、彎曲素材6をその内、外面
の彎曲半径を矯正しつつプレス加工することができ、ま
た彎曲素材6の周長でモータフレーム1の内、外半径を
管理することができるので、モータフレーム1の寸法精
度を優れたものとすることができる。
Further, the radius of curvature of the outer surface of the curved material 6 becomes the outer radius of the cylindrical motor frame 1. In the second step, the radius of curvature of the inner and outer surfaces of the curved material 6 is reduced. Press work can be performed while straightening, and since the outer radius of the motor frame 1 can be controlled by the circumference of the curved material 6, the dimensional accuracy of the motor frame 1 can be improved.
【0021】さらに、彎曲素材6を形成する前の板素材
2の一方向3と直交する方向に沿う両端部に、前記一方
向3に沿う方向での中央部に位置するようにして位置決
め用の突部14,14を形成しておくことにより、かし
め具8を用いたかしめ処理を行なう際の両彎曲素材6,
6の位置決めや、モータフレーム1を用いてモータを組
み立てる際のモータフレーム1の位置決めを前記各位置
決め用の突部14,14…を用いることが可能であり、
設計の自由度が拡大する。
Further, the positioning material for positioning is formed at both ends along the direction orthogonal to the one direction 3 of the plate material 2 before the curved material 6 is formed so as to be located at the center in the direction along the one direction 3. By forming the projections 14, 14, the bi-curved material 6 when performing the caulking process using the caulking tool 8 is provided.
6, and positioning of the motor frame 1 at the time of assembling the motor using the motor frame 1 can be performed using the positioning projections 14, 14,.
The degree of freedom in design expands.
【0022】以上、本発明の実施例を詳述したが、本発
明は上記実施例に限定されるものではなく、特許請求の
範囲に記載された本発明を逸脱することなく種々の設計
変更を行なうことが可能である。
Although the embodiments of the present invention have been described in detail, the present invention is not limited to the above embodiments, and various design changes can be made without departing from the present invention described in the appended claims. It is possible to do.
【0023】たとえば、本発明は円筒状であるモータフ
レーム1に限らず、円筒体の製造方法として広く適用可
能である。また位置決め用の突部14に代えて、位置決
め用の凹部を板素材2の両端に形成するようにしてもよ
い。
For example, the present invention is not limited to the motor frame 1 having a cylindrical shape, and is widely applicable as a method for manufacturing a cylindrical body. Further, instead of the positioning projections 14, positioning recesses may be formed at both ends of the plate material 2.
【0024】[0024]
【発明の効果】以上のように本発明によれば、相互に対
応する凹部および突部を複数ずつ両端部に備える板素材
を形成する第1ステップ、板素材のプレス加工により彎
曲素材を形成する第2ステップ、ならびに一対の彎曲素
材を相互に仮に組み合わせた状態でかしめる第3ステッ
プを経過させて円筒体を製造するようにして、円筒体を
容易にかつ安価に製造することができ、しかも彎曲素材
をその内、外面の彎曲半径を矯正しつつプレス加工する
ことができ、また彎曲素材の周長でモータフレームの
内、外半径を管理することができるので、円筒体の寸法
精度を優れたものとすることができる。
As described above, according to the present invention, a first step of forming a plate material having a plurality of mutually corresponding recesses and protrusions at both ends, a curved material is formed by pressing a plate material. The second step, and the third step of caulking the pair of curved materials in a state where they are tentatively combined with each other, and then manufacturing the cylinder, the cylinder can be easily and inexpensively manufactured. It is possible to press the curved material while correcting the curvature radius of the inner and outer surfaces, and it is possible to control the inner and outer radii of the motor frame by the circumference of the curved material. It can be.
【図面の簡単な説明】[Brief description of the drawings]
【図1】モータフレームの側面図である。FIG. 1 is a side view of a motor frame.
【図2】板素材の平面図である。FIG. 2 is a plan view of a plate material.
【図3】モータフレーム製造過程での第3ステップの操
作を説明するための断面図である。
FIG. 3 is a cross-sectional view for explaining an operation of a third step in a motor frame manufacturing process.
【図4】図3の4矢視方向から見たかしめ具の側面図で
ある。
FIG. 4 is a side view of the swaging tool viewed from the direction of arrow 4 in FIG. 3;
【符号の説明】[Explanation of symbols]
1・・・円筒体としてのモータフレーム 2・・・板素材 3・・・一方向 4・・・凹部 4a・・・ガイド孔部 4b・・・係合孔部 5・・・突部 6・・・彎曲素材 DESCRIPTION OF SYMBOLS 1 ... Motor frame as a cylindrical body 2 ... Plate material 3 ... One direction 4 ... Recess 4a ... Guide hole 4b ... Engagement hole 5 ... Projection 6. ..Bending material
───────────────────────────────────────────────────── フロントページの続き (72)発明者 清水 武治 埼玉県東松山市新郷88番24 東洋電装株式 会社東松山工場内 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Takeharu Shimizu 88-24 Shingo, Higashimatsuyama-shi, Saitama Toyodenso Co., Ltd.

Claims (1)

    【特許請求の範囲】[Claims]
  1. 【請求項1】 一方向(3)に沿って直線状に延びて外
    端を開口したガイド孔部(4a)ならびに該ガイド孔部
    (4a)よりも幅を拡大してガイド孔部(4a)の内端
    に連なる係合孔部(4b)から成る複数の凹部(4)
    と、各ガイド孔部(4a)に嵌合し得る幅およびガイド
    孔部(4a)の長さよりも大なる長さを有する複数の突
    部(5)とを、直角四辺形状の板素材(2)の前記一方
    向(3)に沿う両端部に相互に対応させて形成する第1
    ステップと、前記一方向(3)が周方向となるようにし
    て前記板素材(2)を半円筒状にプレス加工して彎曲素
    材(6)を形成する第2ステップと、一対の彎曲素材
    (6)の周方向両端で相互に対応した凹部(4)のガイ
    ド孔部(4a)に各突部(5)を嵌合せしめて両彎曲素
    材(6)を円筒状に仮に組み合わせた状態で各突部
    (5)の先端部をかしめて係合孔部(4b)に係合させ
    る第3ステップとを順次経過させて、円筒体(1)を製
    造することを特徴とする円筒体の製造方法。
    A guide hole (4a) extending linearly in one direction (3) and having an open outer end, and a guide hole (4a) having a width larger than that of the guide hole (4a). A plurality of recesses (4) comprising an engagement hole (4b) connected to the inner end of
    And a plurality of protrusions (5) having a width that can be fitted into each of the guide holes (4a) and a length greater than the length of the guide holes (4a). A) formed at both ends along the one direction (3) so as to correspond to each other.
    A second step of forming the curved material (6) by pressing the plate material (2) into a semi-cylindrical shape so that the one direction (3) is the circumferential direction; and a pair of curved materials ( The projections (5) are fitted into the guide holes (4a) of the recesses (4) corresponding to each other at both ends in the circumferential direction of (6), and each projection is temporarily assembled in a state where the bi-curved material (6) is temporarily assembled in a cylindrical shape. A third step of caulking the tip of the portion (5) and engaging the engagement hole (4b) with the engaging hole (4b), thereby manufacturing the cylindrical body (1).
JP32321397A 1997-11-25 1997-11-25 Manufacture of cylindrical body Pending JPH11156461A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP32321397A JPH11156461A (en) 1997-11-25 1997-11-25 Manufacture of cylindrical body

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP32321397A JPH11156461A (en) 1997-11-25 1997-11-25 Manufacture of cylindrical body

Publications (1)

Publication Number Publication Date
JPH11156461A true JPH11156461A (en) 1999-06-15

Family

ID=18152308

Family Applications (1)

Application Number Title Priority Date Filing Date
JP32321397A Pending JPH11156461A (en) 1997-11-25 1997-11-25 Manufacture of cylindrical body

Country Status (1)

Country Link
JP (1) JPH11156461A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010185562A (en) * 2009-02-13 2010-08-26 Seiko Epson Corp Cylindrical shaft, carrying roller, carrying unit, and printing device
JP2010185563A (en) * 2009-02-13 2010-08-26 Seiko Epson Corp Cylindrical shaft, carrying roller, carrying unit, and printing device
JP2011230306A (en) * 2010-04-23 2011-11-17 Seiko Epson Corp Printing apparatus
JP2013099769A (en) * 2011-11-09 2013-05-23 Seiko Epson Corp Method for manufacturing cylindrical shaft, and printing apparatus
US20150277263A1 (en) * 2014-03-31 2015-10-01 Canon Kabushiki Kaisha Roller member, roller supporting mechanism, and image forming apparatus
US9180702B2 (en) 2009-02-13 2015-11-10 Seiko Epson Corporation Cylindrical shaft, transport roller, transport unit and printing apparatus
CN110038970A (en) * 2019-05-16 2019-07-23 上海柘电金属科技有限公司 A kind of air duct flaring stamping die

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010185562A (en) * 2009-02-13 2010-08-26 Seiko Epson Corp Cylindrical shaft, carrying roller, carrying unit, and printing device
JP2010185563A (en) * 2009-02-13 2010-08-26 Seiko Epson Corp Cylindrical shaft, carrying roller, carrying unit, and printing device
US9180702B2 (en) 2009-02-13 2015-11-10 Seiko Epson Corporation Cylindrical shaft, transport roller, transport unit and printing apparatus
JP2011230306A (en) * 2010-04-23 2011-11-17 Seiko Epson Corp Printing apparatus
JP2013099769A (en) * 2011-11-09 2013-05-23 Seiko Epson Corp Method for manufacturing cylindrical shaft, and printing apparatus
US20150277263A1 (en) * 2014-03-31 2015-10-01 Canon Kabushiki Kaisha Roller member, roller supporting mechanism, and image forming apparatus
US9423715B2 (en) * 2014-03-31 2016-08-23 Canon Kabushiki Kaisha Roller member, roller supporting mechanism, and image forming apparatus
CN110038970A (en) * 2019-05-16 2019-07-23 上海柘电金属科技有限公司 A kind of air duct flaring stamping die
CN110038970B (en) * 2019-05-16 2020-06-23 上海柘电金属科技有限公司 Air duct flaring stamping die

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