JP2001090802A - Lap-joining structure and method of sheel and blade of fluid transmision device - Google Patents
Lap-joining structure and method of sheel and blade of fluid transmision deviceInfo
- Publication number
- JP2001090802A JP2001090802A JP24209999A JP24209999A JP2001090802A JP 2001090802 A JP2001090802 A JP 2001090802A JP 24209999 A JP24209999 A JP 24209999A JP 24209999 A JP24209999 A JP 24209999A JP 2001090802 A JP2001090802 A JP 2001090802A
- Authority
- JP
- Japan
- Prior art keywords
- blade
- shell
- die
- fluid transmission
- transmission device
- 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
Links
Landscapes
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】 本発明は、流体伝動装置の
シェルとブレードを固定する方法として、プレス装置を
用いるが、どの部材にも穴を開けずに固着する手段に関
する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for fixing a shell and a blade of a fluid transmission device by using a press device, but fixing the members without making holes in any members.
【０００２】[0002]
【従来の技術】 従来の流体伝動装置において、シェル
にブレードを固着する手段としては、両部材を溶接又は
ろう付けして固着する手段や、ブレードに設けた爪をシ
ェルに設けたスリットに嵌合し、かしめ又はろう付けに
より固着する手段などが知られている（特開昭57-79359
号公報）。しかし、溶接やろう付けを行なうと、シェル
やブレードに熱歪みが発生することがあり、特にろう付
けの場合は、ろう付け炉で大電力を消費し、酸化防止の
フラックスを使用すれば該フラックスから有害ガスが発
生するおそれがある。またブレードに設けた爪をシェル
に設けたスリットに嵌合する工程を有するものは、組付
けを容易にするために３次元形状のスリットとブレード
の爪を高精度に作る必要があり、製造費が高くつく上
に、スリットによってシェルの強度が低下したりブレー
ドの固定力も弱く、スリットからシェル外に作動油が漏
れて性能が著しく低下する不都合がある。2. Description of the Related Art In a conventional fluid transmission device, means for fixing a blade to a shell include means for fixing both members by welding or brazing, and fitting a claw provided on the blade to a slit provided on the shell. Means for fixing by caulking or brazing are known (JP-A-57-79359).
No.). However, when welding or brazing, thermal distortion may occur in the shell or blade. Particularly in the case of brazing, a large amount of power is consumed in the brazing furnace, and the use of an antioxidant flux may result in the use of such a flux. Harmful gas may be generated from water. In the case of a method having a step of fitting a claw provided on a blade with a slit provided on a shell, it is necessary to make a three-dimensional slit and a claw of the blade with high precision in order to facilitate assembly. In addition, the slit reduces the strength of the shell and weakens the fixing force of the blade due to the slit, and the hydraulic oil leaks from the slit to the outside of the shell, resulting in a disadvantage that the performance is significantly reduced.
【０００３】[0003]
【発明が解決しようとする課題】本発明は、前記の不都
合がある溶接又はろう付けや、スリットと爪の嵌合によ
る手段を用いることなく、流体伝動装置のシェルとブレ
ードを接合することを課題とする。SUMMARY OF THE INVENTION An object of the present invention is to join a shell and a blade of a fluid transmission device without using the above-mentioned disadvantageous means of welding or brazing or fitting a slit and a claw. And
【０００４】[0004]
【課題を解決するための手段】 前記の課題を解決する
ための手段は、各請求項に記載したとおりのものであ
り、このうち請求項１の手段は、流体伝動装置のシェル
とブレードの結合構造であって、該ブレードにブレード
から屈曲した固定用のフランジを設け、前記フランジと
シェルを上下に重ねてプレス加工して穴が開いていない
凹部を成型すると共に、該凹部に、一方の部材の径方向
の膨出部が他方の部材中に食い込む結合部を形成し、こ
れにより両部材を一体にしたことを特徴とする、流体伝
動装置のシェルとブレードの重ね接合構造である。この
手段によれば、フランジとシェルに形成した凹部におけ
る板体の肉を径方向に食い込ませて一体にしたので、固
着強度が極めて大きく、穴が開けられていないので、作
動油の漏れがない。Means for solving the above problems are as described in each claim. Among them, the means of claim 1 is a method of connecting a shell and a blade of a fluid transmission device. The blade is provided with a fixing flange bent from the blade, and the flange and the shell are vertically overlapped and pressed to form a recess without a hole, and one member is formed in the recess. A bulging portion in the radial direction forms a connecting portion that cuts into the other member, whereby the two members are integrated, thereby providing a lap joint structure of the shell and the blade of the fluid transmission device. According to this means, since the thickness of the plate body in the recess formed in the flange and the shell is made to bite in the radial direction and integrated, the fixing strength is extremely large, and since no holes are formed, there is no leakage of hydraulic oil. .
【０００５】また請求項２の手段は、流体伝動装置のシ
ェルとブレードの結合構造であって、該ブレードにブレ
ードから屈曲した固定用のフランジをを設け、前記フラ
ンジとシェルを上下に重ねてプレス加工して穴が開いて
いない凹部を成型すると共に、該凹部における下側の板
体の隅部に、該隅部から下方に突出するリング状の膨出
部を形成し、且つ該凹部における上側の板体の隅部に径
方向の膨出部を形成して、該径方向の膨出部を下側の板
体の縦肉部に食い込ませて一体にしたことを特徴とす
る、流体伝動装置のシェルとブレードの重ね接合構造で
ある。この手段によれば、下側の板体の隅部から下方に
突出するリング状の膨出部を形成したことにより、上側
の板体の隅部に径方向の膨出部が形成されやすく、確実
な結合構造が得られる。A second aspect of the present invention is a coupling structure of a shell and a blade of a fluid transmission device, wherein the blade is provided with a fixing flange bent from the blade, and the flange and the shell are vertically overlapped and pressed. In addition to processing to form a concave portion having no hole, a ring-shaped bulging portion projecting downward from the corner portion is formed at a corner of the lower plate body in the concave portion, and the upper side of the concave portion is formed. A fluid bulge formed at a corner of the plate body, and the radial bulge is cut into a vertical wall of the lower plate body to be integrated therewith; It is a lap joint structure of a shell and a blade of the device. According to this means, by forming the ring-shaped bulge projecting downward from the corner of the lower plate, a radial bulge is easily formed at the corner of the upper plate, A reliable connection structure is obtained.
【０００６】請求項３の手段は、流体伝動装置のシェル
とブレード及び該ブレードから屈曲した固着用のフラン
ジを金属板体で作り、シェルとフランジの２枚の金属板
体を固着するために使用する金型として、ダイ穴に底面
を設けたダイと該ダイ穴に出入りするパンチとを有し、
該ダイとパンチの隙間が固着すべき前記の２枚の板体の
厚さの和よりも小さく、ダイ穴の底面の隅部にリング溝
を備える構成の金型を用意し、該金型に２枚の板体を重
ねて挿入し、前記ダイとパンチで板体を絞って凹部を成
形すると共に、該凹部におけるダイ側の板体の隅部の肉
をリング溝に押し出し、且つパンチ側の板体の隅部の肉
を外側へ膨出させ、ダイ側の板体の縦肉部分の内周側に
食い込ませて一体にしたことを特徴とする、流体伝動装
置のシェルとブレードの重ね接合方法である。この手段
によれば、金型を１個又は複数個設けることにより、１
回のプレスで金型の数と同数の固着が行なわれる。According to a third aspect of the present invention, a shell and a blade of a fluid transmission device and a fixing flange bent from the blade are formed of a metal plate, and are used for fixing the two metal plates of the shell and the flange. As a mold to have, a die having a bottom surface in the die hole and a punch to enter and exit the die hole,
A mold having a configuration in which the gap between the die and the punch is smaller than the sum of the thicknesses of the two plate bodies to be fixed and having a ring groove at the corner of the bottom surface of the die hole is prepared. The two plate bodies are inserted one on top of the other, the plate body is squeezed with the die and the punch to form a recess, and the meat of the corner of the plate body on the die side in the recess is extruded into a ring groove, and The lap joint of the shell and the blade of the fluid transmission device, characterized in that the meat at the corners of the plate body is bulged outward and cut into the inner peripheral side of the vertical meat portion of the plate body on the die side to be integrated. Is the way. According to this means, by providing one or more dies,
The same number of fixings as the number of dies are performed in each press.
【０００７】[0007]
【発明の実施の形態】 以下、図面を参照して本発明の
実施の形態を説明する。図１において、１は流体伝動装
置の羽根車、２はシェル、３はブレードであり、該シェ
ル２とブレード３は、鋼板のごとき金属板体で作られて
いる。ブレード３は、図２に示すように、ブレード本体
３ａと、該ブレード本体３ａから屈曲して形成された固
着用のフランジ３ｂを備えており、フランジ３ｂは、図
１に示す３個ずつの固着点４でシェル２に固着されてい
る。Embodiments of the present invention will be described below with reference to the drawings. In FIG. 1, 1 is an impeller of a fluid transmission, 2 is a shell, 3 is a blade, and the shell 2 and the blade 3 are made of a metal plate such as a steel plate. As shown in FIG. 2, the blade 3 has a blade main body 3a and a fixing flange 3b formed by bending the blade main body 3a. The three flanges 3b shown in FIG. It is fixed to the shell 2 at point 4.
【０００８】シェル２とブレード３の固着には、図３に
示す金型５が用いられ、該金型５は、ダイ６とパンチ７
を備える。ダイ６のダイ穴８は、円筒形の内周面８ａ
と、平らな底面８ｂと、ダイ穴８の隅部で底面８ｂに設
けたリング溝８ｃを備える。パンチ７は、円柱形で平ら
な先端面を備え、ダイ穴８とパンチ７の隙間Ｓは、図４
に示すシェル２とフランジ３ｂの厚さの和Ｔより小さく
設定されている。For fixing the shell 2 and the blade 3, a mold 5 shown in FIG. 3 is used.
Is provided. The die hole 8 of the die 6 has a cylindrical inner peripheral surface 8a.
, A flat bottom surface 8b, and a ring groove 8c provided in the bottom surface 8b at the corner of the die hole 8. The punch 7 has a cylindrical and flat tip surface, and the gap S between the die hole 8 and the punch 7 is as shown in FIG.
Is set smaller than the sum T of the thicknesses of the shell 2 and the flange 3b.
【０００９】シェル２とフランジ３ｂを重ねて金型５に
挿入し、前記固着点４の位置で図４に示すようにパンチ
７を作動させてプレスすると、シェル２とフランジ３ｂ
は、一緒に絞られて縦肉部９ａ，９ｂがしごかれて凹部
９が成形される。このとき、縦肉部９ａに作用する圧力
で、シェル２の隅部の肉がリング溝８ｃに押し出されて
膨出部９ｃが形成され、この肉の流れと縦肉部９ａ，９
ｂに作用する圧力差によって、フランジ３ｂの隅部の肉
がシェル２の縦肉部分９ａに径方向に半径差ｒだけ突出
して食い込む膨出部９ｄが形成され、これにより縦肉部
９ａ，９ｂは一体化されシェル２とブレード３は強固に
固着する。When the shell 2 and the flange 3b are overlapped and inserted into the mold 5, and the punch 7 is operated and pressed at the position of the fixing point 4 as shown in FIG.
Are squeezed together and the vertical wall portions 9a and 9b are wrung to form the concave portion 9. At this time, the meat acting at the corner of the shell 2 is pushed out by the ring groove 8c by the pressure acting on the vertical meat portion 9a to form a bulging portion 9c, and the flow of the meat and the vertical meat portions 9a, 9a are formed.
Due to the pressure difference acting on the shell 3b, a bulging portion 9d is formed in which the flesh at the corner of the flange 3b protrudes and digs into the vertical wall portion 9a of the shell 2 by a radial difference r in the radial direction, thereby forming the vertical wall portions 9a, 9b. And the shell 2 and the blade 3 are firmly fixed.
【００１０】固着点４は、各フランジ３ｂには２個又は
３個ずつ設けるのが望ましく、軽量化のために、図５に
示すようにフランジ３ｂの固着点４近傍以外の部分は切
除するのが望ましい。Preferably, two or three fixing points 4 are provided on each flange 3b. To reduce the weight, portions other than the vicinity of the fixing points 4 of the flange 3b are cut off as shown in FIG. Is desirable.
【００１１】前記の実施の形態において、ダイ穴８の内
周面８ａとパンチ７の外周面は円筒面であるが、これに
抜き勾配を付してもよく、また平らなダイ穴８の底面８
ｂ及びパンチ７の先端面を、緩やかな曲面又はテーパ面
としてもよい。In the above-described embodiment, the inner peripheral surface 8a of the die hole 8 and the outer peripheral surface of the punch 7 are cylindrical surfaces, but they may be drafted. 8
The tip surfaces of the b and the punch 7 may be gently curved surfaces or tapered surfaces.
【００１２】[0012]
【発明の効果】 以上の説明から明らかなとおり、請求
項１の手段によれば、流体伝動装置のシェルとブレード
に、スリット開けやろう付けなどの加工を施さないの
で、加工費用が安くてすみ、作動油の漏れや熱歪みもな
く高品質の流体伝動装置が得られる。またブレードから
屈曲したフランジは、３次元形状をもつので、ブレード
の強度が上がり、板厚を薄くして軽量化することができ
る。固着点を形成する凹部は、リング状の膨出部で結合
しているので、強弱の方向性がなく、固着点が小さくて
も十分な強度が得られるなどの効果がある。As is apparent from the above description, according to the first aspect of the present invention, since the processing such as slitting or brazing is not performed on the shell and the blade of the fluid transmission device, the processing cost can be reduced. Thus, a high-quality fluid transmission device can be obtained without leakage of hydraulic oil or thermal distortion. Further, since the flange bent from the blade has a three-dimensional shape, the strength of the blade is increased, the thickness of the blade is reduced, and the weight can be reduced. Since the concave portions forming the fixing points are connected by the ring-shaped bulging portions, there is no strong or weak directionality, and there is an effect that sufficient strength can be obtained even if the fixing points are small.
【００１３】請求項２の手段によれば、請求項１につい
て述べた前記の効果のほかに、固着点の凹部において、
下側の板体の隅部から下方に突出するリング状の膨出部
を形成して上側の板体の径方向の膨出部を形成し易くし
たので、確実な結合構造が得られる効果がある。According to the second aspect of the present invention, in addition to the effects described in the first aspect, in the recess at the fixing point,
A ring-shaped bulge projecting downward from the corner of the lower plate is formed to facilitate the formation of a radial bulge in the upper plate, so that an effect of obtaining a reliable coupling structure is obtained. is there.
【００１４】また請求項３の手段によれば、流体伝動装
置のシェル２とブレード３は、一つ又は複数個の固着点
が１回のプレスで簡単に固着され、従来のろう付け方式
やかしめ方式で生じる前記の不都合は生じない効果があ
る。According to the third aspect of the present invention, one or more fixing points of the shell 2 and the blade 3 of the fluid transmission device are easily fixed by a single press, and a conventional brazing method or caulking is used. There is an effect that the above-mentioned inconvenience caused by the method does not occur.
【図１】 本発明の実施の一形態を示す流体伝動装置の
羽根車の正面図FIG. 1 is a front view of an impeller of a fluid transmission device showing one embodiment of the present invention.
【図２】 ブレードの斜視図FIG. 2 is a perspective view of a blade.
【図３】 金型の縦断面図FIG. 3 is a longitudinal sectional view of a mold.
【図４】 工程説明図FIG. 4 is a process explanatory view.
【図５】 ブレードの他の形態を示す斜視図FIG. 5 is a perspective view showing another embodiment of the blade.
１ 羽根車 ２
シェル ３ ブレード ３ａ ブレー
ド本体 ３ｂ フランジ ４
固着点 ５ 金型 ６
ダイ ７ パンチ ８
ダイ穴 ８ｃ リング溝 ９
凹部 ９ａ，９ｂ 縦肉部 ９ｃ，９ｄ
膨出部1 impeller 2
Shell 3 Blade 3a Blade body 3b Flange 4
Fixing point 5 Mold 6
Die 7 Punch 8
Die hole 8c Ring groove 9
Recesses 9a, 9b Vertical wall portions 9c, 9d
Bulge
Claims (3)
構造であって、該ブレードにブレードから屈曲した固定
用のフランジを設け、前記フランジとシェルを上下に重
ねてプレス加工して穴が開いていない凹部を成形すると
共に、該凹部に、一方の部材の径方向の膨出部が他方の
部材中に食い込む結合部を形成し、これにより両部材を
一体にしたことを特徴とする、流体伝動装置のシェルと
ブレードの重ね接合構造。1. A coupling structure of a shell and a blade of a fluid transmission device, wherein the blade is provided with a fixing flange bent from the blade, and the flange and the shell are pressed up and down to form a hole. Fluid transmission characterized by forming a concave portion and forming a coupling portion in the concave portion where a radially bulging portion of one member cuts into the other member, thereby integrating the two members. Lap joint structure of equipment shell and blade.
構造であって、該ブレードにブレードから屈曲した固定
用のフランジをを設け、前記フランジとシェルを上下に
重ねてプレス加工して穴が開いていない凹部を成形する
と共に、該凹部における下側の板体の隅部に、該隅部か
ら下方に突出するリング状の膨出部を形成し、且つ該凹
部における上側の板体の隅部に径方向の膨出部を形成し
て、該径方向の膨出部を下側の板体の縦肉部に食い込ま
せて一体にしたことを特徴とする、流体伝動装置のシェ
ルとブレードの重ね接合構造。2. A coupling structure of a shell and a blade of a fluid transmission device, wherein the blade is provided with a fixing flange bent from the blade, and the flange and the shell are pressed up and down to form a hole. And forming a ring-shaped bulge projecting downward from the corner at the corner of the lower plate in the recess, and forming a corner of the upper plate in the recess. A radially bulging portion is formed in the shell and the blade of the fluid transmission device, characterized in that the radially bulging portion is cut into a vertical wall portion of the lower plate to be integrated. Lap joint structure.
ブレードから屈曲した固着用のフランジを金属板体で作
り、シェルとフランジの２枚の金属板体を固着するため
に使用する金型として、ダイ穴に底面を設けたダイと該
ダイ穴に出入りするパンチとを有し、該ダイとパンチの
隙間が固着すべき前記の２枚の板体の厚さの和よりも小
さく、ダイ穴の底面の隅部にリング溝を備える構成の金
型を用意し、該金型に２枚の板体を重ねて挿入し、前記
ダイとパンチで板体を絞って凹部を成形すると共に、該
凹部におけるダイ側の板体の隅部の肉をリング溝に押し
出し、且つパンチ側の板体の隅部の肉を外側へ膨出さ
せ、ダイ側の板体の縦肉部分の内周側に食い込ませて一
体にしたことを特徴とする、流体伝動装置のシェルとブ
レードの重ね接合方法。3. A fluid transmission device comprising: a shell and a blade of a fluid transmission device; and a fixing flange bent from the blade formed of a metal plate, and a mold used for fixing the two metal plates of the shell and the flange. A die provided with a bottom surface in the die hole and a punch entering and exiting the die hole, wherein a gap between the die and the punch is smaller than the sum of the thicknesses of the two plate members to be fixed; A mold having a configuration in which a ring groove is provided at the corner of the bottom surface is prepared, two plate bodies are inserted into the mold in a stacked manner, and the plate body is squeezed with the die and the punch to form a recess. In the above, the flesh of the corner of the plate body on the die side is extruded into the ring groove, and the flesh of the corner of the plate body on the punch side is bulged outward and cut into the inner peripheral side of the vertical meat part of the plate body on the die side. Lap joining method for a shell and a blade of a fluid transmission device, wherein .
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24209999A JP2001090802A (en) | 1999-08-27 | 1999-08-27 | Lap-joining structure and method of sheel and blade of fluid transmision device |
| US09/645,519 US6371728B1 (en) | 1999-08-27 | 2000-08-25 | Impeller for hydraulic power transmitting apparatus and method of fixing blades of hydraulic power transmitting apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP24209999A JP2001090802A (en) | 1999-08-27 | 1999-08-27 | Lap-joining structure and method of sheel and blade of fluid transmision device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2001090802A true JP2001090802A (en) | 2001-04-03 |
Family
ID=17084299
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP24209999A Pending JP2001090802A (en) | 1999-08-27 | 1999-08-27 | Lap-joining structure and method of sheel and blade of fluid transmision device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2001090802A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054716A (en) * | 2000-08-09 | 2002-02-20 | Yutaka Giken Co Ltd | Method for fixing impeller and blade of hydraulic transmission |
| JP2002364685A (en) * | 2001-06-11 | 2002-12-18 | Hosei Brake Ind Ltd | Positioning structure of multiple plate materials |
| JP2014152846A (en) * | 2013-02-07 | 2014-08-25 | Denso Corp | Clutch |
-
1999
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002054716A (en) * | 2000-08-09 | 2002-02-20 | Yutaka Giken Co Ltd | Method for fixing impeller and blade of hydraulic transmission |
| JP4528424B2 (en) * | 2000-08-09 | 2010-08-18 | 株式会社ユタカ技研 | Impeller and blade fixing method of fluid transmission device |
| JP2002364685A (en) * | 2001-06-11 | 2002-12-18 | Hosei Brake Ind Ltd | Positioning structure of multiple plate materials |
| JP2014152846A (en) * | 2013-02-07 | 2014-08-25 | Denso Corp | Clutch |
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