JPS5978730A - Hot bender for pipe - Google Patents
Hot bender for pipeInfo
- Publication number
- JPS5978730A JPS5978730A JP18915082A JP18915082A JPS5978730A JP S5978730 A JPS5978730 A JP S5978730A JP 18915082 A JP18915082 A JP 18915082A JP 18915082 A JP18915082 A JP 18915082A JP S5978730 A JPS5978730 A JP S5978730A
- Authority
- JP
- Japan
- Prior art keywords
- tube
- bending
- thrust
- arm
- propulsion 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.)
- Granted
Links
- 238000005452 bending Methods 0.000 claims abstract description 52
- 238000010438 heat treatment Methods 0.000 claims abstract description 17
- 229910001385 heavy metal Inorganic materials 0.000 claims 1
- 238000001816 cooling Methods 0.000 abstract description 3
- 239000002184 metal Substances 0.000 description 6
- 238000000034 method Methods 0.000 description 5
- 229910000831 Steel Inorganic materials 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000002496 gastric effect Effects 0.000 description 1
- 238000013003 hot bending Methods 0.000 description 1
- 239000010959 steel Substances 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D7/00—Bending rods, profiles, or tubes
- B21D7/02—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment
- B21D7/024—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member
- B21D7/025—Bending rods, profiles, or tubes over a stationary forming member; by use of a swinging forming member or abutment by a swinging forming member and pulling or pushing the ends of the work
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Bending Of Plates, Rods, And Pipes (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は既存の熱間管曲は装置に比較的簡単な装置？付
加してその能力？大幅に増大させた熱間管曲げ装置に関
するものである。[Detailed Description of the Invention] The present invention is a relatively simple device for existing hot pipe bending devices. Add that ability? This invention relates to a greatly increased hot tube bending device.
従来、金属管の曲げ加工に多用さｎている熱間管曲げ装
置として２曲げ加工すべき前音その後端から推進する推
進装置と、前記青金その長手力向に把持し乍ら移動させ
る案内枠と、該案内枠の前端において前記胃管その外側
から局部的に環状に加熱する加熱装置と、前記管の前端
部？把持するクランプ装置？具え前記加熱装Ｗを含む面
内又はその近傍に回転の中心？有する曲げ腕とから成る
ものがある。この熱間管曲げ装置において１曲げ加工す
べき管に曲はモーメント？与える方法としては、案内枠
上加熱装置付近に設けらｆｌ、た２対のローラによる方
法と、第１図に示すように、管１？把持し乍ら移動させ
る案内枠２の前端側に設けらまた加熱装置３の近くに配
設した１個のローラ４及び管１の後端に配し案内枠２上
？管１の長手方向に滑動可能なテールストック５による
方法等があるが、いずｆ’ＬＫ１．ても、案内枠とロー
ラとによって管１に曲げモーメン）ｋ与えることに変り
はない。Conventionally, the hot tube bending device, which is often used for bending metal tubes, has two components: a propulsion device that propels the metal tube from the rear end of the metal tube to be bent, and a guide that moves the metal tube while gripping it in its longitudinal direction. a frame, a heating device for locally annular heating from the outside of the gastric tube at the front end of the guide frame, and a front end of the tube? Clamping device to grasp? Is there a center of rotation within or near the plane containing the heating device W? There is one consisting of a bent arm with a What is the bending moment in the tube to be bent in this hot tube bending machine? This can be done by using two pairs of rollers installed near the heating device on the guide frame, or by using two pairs of rollers, as shown in FIG. One roller 4 is provided on the front end side of the guide frame 2 to be moved while gripping, and is also provided near the heating device 3, and one roller 4 is provided on the rear end of the tube 1 on the guide frame 2. There are methods using the tail stock 5 that can slide in the longitudinal direction of the tube 1, but the first method is f'LK1. However, the bending moment (k) is still applied to the pipe 1 by the guide frame and rollers.
而して、上記の従来の管曲げ装置は金属管の種類によっ
てはこｎ、 ｙよく曲は加工することができるが、近時
５強大な推力と曲はモーメント全要求さｎる曲げ加工が
多くなり、従来装置のままではそのような曲げ加工１行
うことは不可能であるし、さりとて従来方式で前！！己
要求′ｆｆ：満足させることのできる装置をつくるとす
ｎば、装置全体の重量が著しく太きくなり、＃大な設備
費が必要となる。The conventional pipe bending equipment described above can bend some metal pipes very well depending on the type of pipe. It is impossible to perform such bending with conventional equipment, and it is impossible to perform such bending with conventional equipment. ! If we were to create a device that can satisfy the self-requirements 'ff, the weight of the entire device would be significantly large and a large equipment cost would be required.
本発−は上記のような事情を背景として、推力及び曲は
モーメントが強大で、既設の熱間管曲げ装置ｖ改造して
も比較的容易に得らｎる熱間管曲は製雪を提供すること
を目的としてなさｔｉｌｔもので、その構成は１曲げ加
工すべき管？その後端から推進する第一推進装置と、前
記管？その長手方向に杷持し乍ら移動させる案内枠と、
該案内枠の前端側において前記管をその外側から局部的
に環状に加熱する加熱装置と、前記管の前端部を把持す
るクランプ装置？具え前記加熱装置？含む面内又はその
近傍に回転の中心？有する曲げ腕と、前記管の後端部？
把持するクランプケ具え肢管の横手方向に延設ζｎ、７
ｈ腕と、核腕上における前記管の中心から前記曲げ腕の
有効曲げ半径と等距離にある点と前記曲げ腕の回転の中
心との間？相互に引張せしめ、この引張力を適当に調節
して前記第一推進装置の推力を適宜の値に制限する第二
推進装置とから成ること全特徴とするものである。This project was developed based on the above-mentioned circumstances, and the thrust and bending moment is strong, and the hot bending method, which can be obtained relatively easily even by modifying the existing hot pipe bending equipment, is difficult to make snow. Is it intended to provide a tilted tube whose configuration is one that should be bent? The first propulsion device that propels from the rear end and the said tube? a guide frame that is moved while holding it in its longitudinal direction;
A heating device that locally annularly heats the tube from the outside on the front end side of the guide frame, and a clamp device that grips the front end of the tube? What about the heating device? Is the center of rotation within or near the containing plane? The rear end of the tube with a bent arm?
The clamp ke to be gripped extends in the lateral direction of the limb tube, ζn, 7
h arm and between a point on the nuclear arm equidistant from the center of the tube to the effective bending radius of the bending arm and the center of rotation of the bending arm? and a second propulsion device which tensions each other and adjusts the tension appropriately to limit the thrust of the first propulsion device to an appropriate value.
次に本発明の実施例１図に拠り説明する。Next, a first embodiment of the present invention will be explained with reference to FIG.
第１図において、１乃至５は前述しまた通りで、１は曲
げ加工すべき管、２は肢管を把持し乍ら移動させる案内
枠、６は該案内枠２の前端側に設けらｎ冷却装置を一体
に具えた環状の加熱装置、４は該加熱装置３の近くに配
設さｎたローラ、５は案内枠２上を管１の長手方向に滑
動可能なテールストックであり、６は管１の前端部を把
持するクランプ、７は該クランプ６？その十に積載した
記−曲げ腕、０は該罪−曲げ腕７の回転中心で２以上１
乃至７及び後述する第一推進装置により従来公知の熱間
管曲げ装置の一例を構成する。In FIG. 1, 1 to 5 are as described above, 1 is a tube to be bent, 2 is a guide frame for grasping and moving the limb, and 6 is a guide frame provided on the front end side of the guide frame 2. an annular heating device integrally equipped with a cooling device, 4 a roller disposed near the heating device 3, 5 a tailstock capable of sliding in the longitudinal direction of the tube 1 on the guide frame 2; 7 is a clamp that grips the front end of the tube 1, and 7 is the clamp 6? The description loaded on the tenth - bending arm, 0 is the crime - 2 or more 1 at the center of rotation of bending arm 7
7 to 7 and a first propulsion device to be described later constitute an example of a conventionally known hot tube bending device.
而して、この従来装置はこｔｌ、を次のように改造すｎ
ば１本発明装置を構成することができる。即ち１図にお
いて、８はクランプ６０何方に固定さｎ且つ第−曲げ腕
７と結合さｎた第二曲げ腕、９は前記両曲げ腕７．８を
結合するホルダー、１０は該ホルダー９に設は前記第−
曲げ腕７と回転の中心０？共有するピボット、１１は管
１の後端を把持しテールストック５によって微少角度回
転が許容さｎるように支持さｎているクランプ、１２は
該クランプ１１０側方に固定さｔｌ管１の横手方向に延
設さｎた腕、１３は通常、ローラチェーンとその駆動装
置とから成る第一推進装置、１４はホルダー９と腕１２
との間に配設した第二推進装置、１５は腕１２の支持装
置、１６は該支持装置１５を案内するレール、１７は第
二推進装置１４の後尾併１のブラケット、１８は台枠で
、ブラケット１７はピボット１９．揺動杆２０．ピボッ
ト２１を介してブラケット２２ケ支持し、第二推進装置
１４を支持している。とｎは、クランプ１１の微少回転
により第二推進装置１４の駆動部１４ａの中心位置２３
が若干変位するのに対応するためである。Therefore, this conventional device is modified as follows.
For example, the device of the present invention can be constructed. That is, in FIG. 1, 8 is a second bending arm fixed to the clamp 60 and connected to the second bending arm 7, 9 is a holder that connects both bending arms 7.8, and 10 is a second bending arm that is connected to the first bending arm 7. The settings are as above.
Bending arm 7 and center of rotation 0? A common pivot, 11, is a clamp that grips the rear end of the tube 1 and is supported by the tail stock 5 to allow slight angle rotation; 12 is a clamp 12 fixed to the side of the tube 1; 13 is a first propulsion device usually consisting of a roller chain and its drive device; 14 is a holder 9 and an arm 12;
15 is a support device for the arm 12, 16 is a rail that guides the support device 15, 17 is a bracket attached to the rear of the second propulsion device 14, and 18 is an underframe. , the bracket 17 is connected to the pivot 19. Swinging rod 20. 22 brackets are supported via a pivot 21 to support the second propulsion device 14. and n are the center position 23 of the drive section 14a of the second propulsion device 14 due to the slight rotation of the clamp 11.
This is to accommodate the slight displacement of .
尚、上記における第一推進装置１３は通常、第４図に示
すように、管１の両側に配さするものであるが、本発明
にあっては、第３図に示すように。Incidentally, the first propulsion device 13 mentioned above is normally arranged on both sides of the pipe 1 as shown in FIG. 4, but in the present invention, as shown in FIG. 3.
管１の片側のみに配するようにして、案内枠２の片側２
ａ’５切ｌ１ｌｌＴげｎｌｄ′、クランプ１１の側方が
ら腕１２？側方へ直伸できるようにすることが可能であ
る。このようにして、第一推進装置１６の推力をあまり
大きくするのを避け、腕１２を直伸させてＭ形腕１２の
能カケ高めるよう該腕１２に設ける絹二ＲＥ進装置１４
′ｆその分だけ太きく１−る方が力学上好ましいが、既
設装置の構造士或はその他の都合上、第５図のように改
造し難い場合は第４図のようにしても％に支障はない。Place it only on one side of the pipe 1, and place it on one side 2 of the guide frame 2.
a'5 cut l1llTge nld', side arm 12 of clamp 11? It is possible to extend it straight to the side. In this way, the second RE propulsion device 14 provided on the arm 12 can avoid increasing the thrust of the first propulsion device 16 too much and straighten the arm 12 to increase the capacity of the M-shaped arm 12.
'f It is preferable from a mechanical point of view to make it thicker by that amount, but if it is difficult to modify the existing equipment as shown in Fig. 5 due to the structural engineer or other reasons, even if it is made as shown in Fig. 4, the There is no problem.
而して、第４図のようＫした場合、第二推進装置１４の
中心の高さが管１の中心の高さより高くとっであるが、
こｔ′１２は％第一推進装置１３の推力ＰＩＩＣより曲
げ腕７の中心軸を前方に倒そうとする転倒モーメントラ
第二推進装置１４の推力Ｐ、により相殺するためであり
、またこうすることによりそのオフセット分だけ腕１２
の芯高が高くなって構造が楽になるという利点があるが
、小半径曲げの場合は、第３図のようにした方がピボッ
ト１０を含む第二推進装置１４ケ管１の方に余分に接近
させることができるので、好部会である。Therefore, in the case of K as shown in FIG. 4, the height of the center of the second propulsion device 14 is higher than the height of the center of the tube 1.
This is because the thrust PIIC of the first propulsion device 13 is offset by the overturning moment, the thrust P of the second propulsion device 14, which tends to tilt the central axis of the bending arm 7 forward. By this, the arm 12 can be adjusted by that offset.
This has the advantage of increasing the center height and making the structure easier. However, in the case of small radius bending, it is better to do as shown in Fig. This is a good group because it allows you to get close to them.
貫た。第二推進装ｆｆ１４は第一推進装置１６と同様に
ローラチェーン？用論てもよいが、その他鋼索、ラック
とビニオン等も適宜使用することが可能であり、場合に
よっては油圧シリンダ？用いてもよい、
上記のように構成さｎる本発明熱間管曲げ装置は、管１
を第１図々示のようにセットし、第一推進装置１３．第
二推進装置１４全駆動して、第一推進装置１３により推
力Ｐ、を、第二推進装置１４の引張力により推カＰ、？
、管１に作用させ該管１？推進させ乍ら加熱装置３Ｖｃ
より熱管１を局部的に環状に加熱し、加熱の直後冷却す
る操作を連続的に行なうことにより該管ＩＫ曲はモーメ
ント？付与して曲げ加工するのであるが、管１？推進す
る推力が、第一、第二の二つの推進装置１３ 、１４に
より与えらｎ、ると共に第二推進装置１４が腕１２を曲
げ腕７，８の回転軸に向は牽引するように作用するから
、推力及び曲はモーメントが強大になり、従来の管曲は
装置に比し、その能カ？大幅に増大させることができる
。Penetrated. Is the second propulsion device ff14 a roller chain like the first propulsion device 16? However, other steel cables, racks and binions, etc. can also be used as appropriate, and in some cases, hydraulic cylinders? The hot tube bending apparatus of the present invention configured as described above may be used for tube 1
are set as shown in the first figure, and the first propulsion device 13. The second propulsion device 14 is fully driven, the first propulsion device 13 generates a thrust P, and the tensile force of the second propulsion device 14 generates a thrust P, ?
, act on tube 1, and the tube 1? Heating device 3Vc while propelling
By continuously heating the hot tube 1 locally in an annular shape and cooling it immediately after heating, the IK curve of the tube is changed to moment ? It is applied and bent, but tube 1? The thrust for propulsion is given by the first and second propulsion devices 13 and 14, and the second propulsion device 14 bends the arm 12 and acts to pull it in the direction of the rotation axis of the arms 7 and 8. Therefore, the thrust and moment of the bending will be strong, and the performance of the conventional pipe bending will be lower than that of the device. It can be increased significantly.
而して、第一推進装置１４の推力Ｐ、は第一推進装置１
３の推力Ｐ、を成る目標値に制限し得られるように調節
するものとする。こうすることにより第−曲げ腕７には
主として管１？含む回転部の重ｉｋｗ支持させ、第二曲
げ腕８に必要な曲はモーメントの大部分？受は持たせる
ようにシフ、強大な推力と曲はモーメン）？必要とする
曲げ加工が可能になるのであって、実際の曲げ加工にお
いては、第一推進装置の推力と第二推進装置の推力とが
略一定の比率を保つよう又は第一推進装置の推力が略零
になるようＫｍ二推進装置の推力？制御するようにする
ことが望ましい。Therefore, the thrust P of the first propulsion device 14 is the same as that of the first propulsion device 1.
It is assumed that the thrust force P of 3 is limited to the target value and adjusted so that it can be obtained. By doing this, the first bending arm 7 is mainly connected to the pipe 1? The weight of the rotating part including ikw is supported, and the bending required for the second bending arm 8 is the majority of the moment? Uke has a powerful thrust and song is Momen)? This makes it possible to perform the required bending process, and in the actual bending process, the thrust of the first propulsion device and the thrust of the second propulsion device are kept at a substantially constant ratio, or the thrust of the first propulsion device is The thrust of the Km2 propulsion device so that it becomes almost zero? It is desirable to control it.
上記実施例においては、既設の装置に改造した場合の例
について述べたが、実際に既設の装置を改造して推力と
曲はモーメン）？増強また例について説明すると、推力
６０ ｔｏｎ、曲はモーメント１５０ ｔｏｎ、ｍｅｔ
ｅｒの既設装置の重量が約６０ ｔｏｎ であるのに
対し、こｔ’Ｌ、ｆ全推力１５０ ｔｏｎ 、曲はモー
１７ ） ４００ ｔｏｎ、ｍｅｔｅｒに増強するのに
必要な付加装量の重量は約５０ ｔｏｎであり、推力１
ｔｏｎ当りの重量は、
既設装置 ６ ［１ｔｏｎ ／ ６０ ｔｏｎ ” １
付加装置： ３０ ｔｏｎ ／ ９０ ｔｏｎ＝ ｉ
７３で、伺加装置は既設装置の１７３の却位重景で推力
の増強が出来るのである。In the above embodiment, an example was described in which an existing device was modified, but is it possible to actually modify an existing device to increase the thrust and the bending moment? For example, the thrust is 60 tons, the moment is 150 tons, met
The weight of the existing equipment for the er is approximately 60 tons, while the weight of the additional equipment required to increase the total thrust to 150 tons, 400 tons, meter is approximately 50 tons, thrust 1
The weight per ton is: Existing equipment 6 [1 ton / 60 ton ” 1
Additional equipment: 30 ton / 90 ton=i
73, the thrust force can be increased by using the existing equipment 173.
本発明は上述の通りであるから２強大な推力と助はモー
メント？必要とさｎ、る金属管ケ曲げ加工するための装
置として好適であり、また既設の装置を比較的容易に改
造して得らｎるので、産業上極めて有用である。Since the present invention is as described above, what are the two powerful thrusts and moments? The present invention is suitable as a device for bending metal tubes as required, and can be obtained by relatively easily modifying existing devices, making it extremely useful industrially.
第１図は本発明熱間管曲は装置の一例の平面図。
第２図は第１図装置の第−曲げ腕と第二曲は腕との結合
状態を示す立面図、第３図は同じく腕と該腕に固足され
たクランプ及び駆動装置？示す立面図、第４図は第３図
の別の態様ケ示す立面図である。
１・・・管、２・・・案内枠、６・・・加熱装置、４・
・・ローラ、５・・・テールストック％ ６・・・クラ
ンプ、７・・・第−曲げ腕、８・・・第二曲げ腕、９・
・・ホルダー、１０・・・ピボット％ １１・・・クラ
ンプ、１２・・・腕、１３・・・第一推進装置、１４・
・・第二推進装置、１５・・・支持装置
代理人 小 泉 良 邦
第２図
第５図
第４図FIG. 1 is a plan view of an example of the hot tube bending apparatus of the present invention. FIG. 2 is an elevational view showing the state of connection between the first bent arm and the second bent arm of the device shown in FIG. FIG. 4 is an elevational view showing another embodiment of FIG. 3. 1... Pipe, 2... Guide frame, 6... Heating device, 4...
...Roller, 5...Tail stock% 6...Clamp, 7...First bending arm, 8...Second bending arm, 9...
... Holder, 10... Pivot % 11... Clamp, 12... Arm, 13... First propulsion device, 14.
...Second propulsion device, 15...Support device agent Yoshikuni Koizumi Figure 2 Figure 5 Figure 4
Claims (1)
装置と、前記管？その長手方向に把持し乍ら移動させる
案内枠上、＃案内枠の前端側において前記管をその外４
４１１から局部的に環状に加熱する加熱装置と、前記管
の前端部全把持するクランプ装置を具え前記加熱装置を
含む面内又はその近傍に回転の中心を有する曲げ腕と、
前記管の後端部を把持するクランプを具え肢管の横手方
向に延設さ１また腕と、該腕上における前記管の中心か
ら前記曲げ腕の有効−は半径と等距離にある点と前記曲
げ腕の回転の中心との間？相互に引張せしめ。 この引張力？適当に調節して前記第一推進装置の推力？
適宜の値に制限する第二推進装置とから成るこに″ｆ特
徴とする熱間管曲げ装置。 ２ 曲げ加工すべき管の前端部會把持するクランプ装＠
を具え且前記管？含む回転部の重箪金支持すること？主
目的とする第−曲げ腕と、＃芭己クランプ装置の一方に
固定さｎ前記第−曲げ腕と平行に延設さｎて該曲げ腕の
回転の中心において訪曲げ腕に固定さｎ必要な曲げモー
メントの大音す分？受は持つ第二曲げ腕？含む特許請求
の範囲第１項に記載の装置。 ３ 第一推進装置の推力と第二推進装置の推力とが略一
定の比率を保つように第二推進装置の推ブ］？制御する
装置１含む特許請求の範囲第１項又は第２項に記載の装
置。 ４ 算−推進装置の推力全略零に保つようＶＣ第二推遊
装置の推力？制御する装置？含む特許請求の範囲第１項
又は第２項に記載の装置。[Claims] 1. A pipe to be bent? The first propulsion device that propels from the rear end and the said tube? # On the guide frame that is gripped and moved in the longitudinal direction, the tube is
a heating device that locally heats annularly from 411, and a bending arm that includes a clamp device that grips the entire front end of the tube and has a center of rotation within or near a plane that includes the heating device;
an arm extending in the lateral direction of the limb canal and having a clamp for gripping the rear end of the tube, and a point on the arm that is equidistant from the center of the tube to the effective radius of the bending arm; Between the center of rotation of the bent arm? mutually pulled together. This tensile force? Properly adjust the thrust of the first propulsion device?
A hot tube bending device characterized by consisting of a second propulsion device that limits the value to an appropriate value. 2. A clamp device that grips the front end of the tube to be bent.
and said tube? Is it possible to support heavy metals including rotating parts? It is necessary to fix the main purpose of the bending arm to one side of the clamping device, extend parallel to the bending arm, and fix it to the bending arm at the center of rotation of the bending arm. How loud is the bending moment? Does Uke have a second bent arm? Apparatus according to claim 1 comprising: 3 Push the second propulsion device so that the thrust of the first propulsion device and the thrust of the second propulsion device maintain a substantially constant ratio]? A device according to claim 1 or 2, comprising a controlling device 1. 4 Calculation - The thrust of the VC second propulsion device to keep the total thrust of the propulsion device approximately zero? A device to control? Apparatus according to claim 1 or 2 including:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18915082A JPS5978730A (en) | 1982-10-29 | 1982-10-29 | Hot bender for pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP18915082A JPS5978730A (en) | 1982-10-29 | 1982-10-29 | Hot bender for pipe |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978730A true JPS5978730A (en) | 1984-05-07 |
| JPH0241373B2 JPH0241373B2 (en) | 1990-09-17 |
Family
ID=16236260
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP18915082A Granted JPS5978730A (en) | 1982-10-29 | 1982-10-29 | Hot bender for pipe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978730A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7120407B2 (en) | 2000-10-02 | 2006-10-10 | Niigata Seimitsu Co., Ltd. | Receiver and its tracking adjusting method |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5378970A (en) * | 1976-12-23 | 1978-07-12 | Daiichi Koshuha Kogyo Kk | Metal rod bending method with heat treatment and said device |
| JPS548154A (en) * | 1977-06-22 | 1979-01-22 | Daiichi Koshuha Kogyo Kk | Method and apparatus for compression bending of metal band material |
-
1982
- 1982-10-29 JP JP18915082A patent/JPS5978730A/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5378970A (en) * | 1976-12-23 | 1978-07-12 | Daiichi Koshuha Kogyo Kk | Metal rod bending method with heat treatment and said device |
| JPS548154A (en) * | 1977-06-22 | 1979-01-22 | Daiichi Koshuha Kogyo Kk | Method and apparatus for compression bending of metal band material |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7120407B2 (en) | 2000-10-02 | 2006-10-10 | Niigata Seimitsu Co., Ltd. | Receiver and its tracking adjusting method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241373B2 (en) | 1990-09-17 |
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