JPS60227943A - Production of plateworked product having screw part - Google Patents
Production of plateworked product having screw partInfo
- Publication number
- JPS60227943A JPS60227943A JP8573884A JP8573884A JPS60227943A JP S60227943 A JPS60227943 A JP S60227943A JP 8573884 A JP8573884 A JP 8573884A JP 8573884 A JP8573884 A JP 8573884A JP S60227943 A JPS60227943 A JP S60227943A
- Authority
- JP
- Japan
- Prior art keywords
- threaded portion
- sheet metal
- forming
- product
- thread
- 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
- Forging (AREA)
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は、消火器における消火薬剤収容タンクの口金の
ような、ねじ部を有する板金製品の製造方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for manufacturing a sheet metal product having a threaded portion, such as a mouthpiece for a fire extinguishing agent storage tank in a fire extinguisher.
（従来技術）
近年、製造が容易である等の理由から、金属素板を絞り
加工して得られる板金製品が多く出現している。(Prior Art) In recent years, many sheet metal products obtained by drawing a metal blank have appeared because they are easy to manufacture.
ところで、かかる板金製品を製造するに用いられる金属
素板は板厚が均一なものであって、この金属素板を絞り
加工して得られる製品の各部分の肉厚は略一定であるが
、特にねじ部を有する板金製品にあっては、ねじが形成
される部分つまりねじ形成部分は、ねじが形成された場
合にも十分な強度が維持されるように、比較的厚肉のも
のとしておく必要がある。By the way, the metal blank used to manufacture such sheet metal products has a uniform thickness, and the thickness of each part of the product obtained by drawing this metal blank is approximately constant; In particular, for sheet metal products with threaded parts, the part where the thread is formed, that is, the thread forming part, should be relatively thick so that sufficient strength is maintained even when the thread is formed. There is a need.
したがって、従来においては、金属素板として、ねじ形
成部分に必要とされる肉厚に応じた板厚のものを用いて
いるのが普通である。Therefore, in the past, it has been common to use a blank metal plate with a thickness that corresponds to the thickness required for the thread forming portion.
ところが、このようにすると、ねじ形成部分以外の部分
は、これをねじ形成部分と同程度の厚肉化されたものと
しておく必要がないにも拘わらず、過剰に厚肉化される
ことになり、その結果、板金製品全体の重量及びその製
造に要する材料費が必要以上に増大するといった不都合
を生じる。However, if this is done, the parts other than the thread forming part will be made excessively thick, even though there is no need to make them as thick as the thread forming part. As a result, the weight of the entire sheet metal product and the cost of materials required for its manufacture are unnecessarily increased.
（発明の目的）
本発明は、ねじ部に十分な強度を持たせるために、厚肉
化しておく必要ない部分をもねじ形成部分同様の厚肉の
ものとせざるを得ないことから生ずる不都合を解消すべ
くなされたもので、可及的に軽量で且つ材料費を節約す
ることができ、しかもねじ部の強度を十分に確保するこ
とのできる板金製品の製造方法を提供するものである。(Objective of the Invention) The present invention solves the inconvenience that arises from the fact that in order to provide sufficient strength to the threaded portion, parts that do not need to be thickened must be made as thick as the threaded part. The purpose of this invention was to provide a method for manufacturing sheet metal products that is as light as possible, can save material costs, and can ensure sufficient strength of the threaded portion.
（発明の構成）
この課題を解決した本発明のねじ部を有する板金製品の
製造方法は、特に、金属素板を絞り加工して得られた予
備成形品の回転体形状をなすねじ形成部分を、他の部分
に比して十分に厚肉化させ、この厚肉化されたねじ形成
部分に所定のね一値成させるようにするものである。(Structure of the Invention) The method for manufacturing a sheet metal product having a threaded portion of the present invention that solves this problem is particularly directed to a threaded portion in the shape of a rotating body of a preform obtained by drawing a metal blank. is made sufficiently thicker than other parts, and this thickened thread forming part is made to have a predetermined elasticity.
（実施例）
以下、本発明の方法を図面に示す実施例に基づいて具体
的に説明する。(Example) Hereinafter, the method of the present invention will be specifically explained based on an example shown in the drawings.
この実施例は、第１図及び第５図に示す如き、消火器１
における消火薬剤収容タンク２の口金３を本発明の方法
により製造させる例に係る。この口金３は、上部を、操
作レバー４及び消火薬剤放射ｖ５等を備えた蓋体６が螺
着される円筒状のねじ部３ａに構成すると共に、下部を
、有底円筒状のタンク本体７の上端部に溶着されるカッ
プ状部３ｂに構成してなるものである。This embodiment includes a fire extinguisher 1 as shown in FIGS. 1 and 5.
This relates to an example in which a cap 3 of a fire extinguishing agent storage tank 2 is manufactured by the method of the present invention. The cap 3 has an upper part formed into a cylindrical threaded part 3a into which a lid 6 equipped with an operating lever 4 and a fire extinguishing agent ejector v5 is screwed, and a lower part formed into a bottomed cylindrical tank body 7. It consists of a cup-shaped part 3b that is welded to the upper end of the holder.
このようなねじ部３ａを有する板金製品たる口金Ｊ采発
明の方法により製造するには、まず金属素板（図示せず
）を深絞り加工して、第２図シこ示す如き、上部閉塞円
筒状のねじ形成部分３’ａ及び該ねじ形成部分３’ａの
下端に連らなるカップ状部３’ｂからなる回転体形状の
予備成形品３′を得る。この予備成形品３′において、
力、プ状部分３’ｂについては完成品たる口金３のカッ
プ状部３ｂと一致した形状とされているが、ねし形成部
分３°ａについては、その内面径を口金３のねじ部３ａ
の内面径と一致させているも、その軸線方向長さは該ね
じ部３ａの軸線方向長さよりも所定量長く設定されてい
る。In order to manufacture a J flange, which is a sheet metal product having such a threaded portion 3a, by the method of the invention, first, a blank metal plate (not shown) is deep drawn to form a cylinder with a closed top as shown in FIG. A preformed product 3' in the shape of a rotary body is obtained, which includes a thread-forming portion 3'a having a shape and a cup-shaped portion 3'b continuous to the lower end of the thread-forming portion 3'a. In this preform 3',
The shape of the cup-shaped portion 3'b matches that of the cup-shaped portion 3b of the finished product, but the inner diameter of the thread-forming portion 3°a is the same as that of the threaded portion 3a of the cap 3.
The axial length thereof is set to be longer than the axial length of the threaded portion 3a by a predetermined amount.
そして、上記予備成形品３′のねじ形成部分３゛ａを、
第６図及び第７図に示す如くして、厚肉化させる。Then, the thread forming part 3'a of the preformed product 3' is
The thickness is increased as shown in FIGS. 6 and 7.
すなわち、カップ状部分３’ｂを、回転駆動される保持
部材８に嵌合保持させ、ねじ形成部分３”ａを、保持部
材８に昇降可能に支持された円柱状の保形部材９に嵌合
保持させ、ねじ形成部分３′ａの上面部に、昇降回転駆
動される押圧部材１０を当接させ、ねじ形成部分３°ａ
とカップ状部分３°ｂ、！−の接合部に、ねじ形成部分
３°ａの略下半部に対向する湾曲規制面１１ａを備えた
自転自在な湾曲規制ローラ１１を転接させる（第６図右
老部図示参照）。なお、保持部材８と押圧部材１０とは
同一方向に同速度で回転駆動せしめられるものであり、
保形部材９は、これと押圧部材１０とでもってねし形成
部分３’ａの上面閉塞壁を挾持した状態で、抑圧部材１
０の下降に伴って下降せしめられるものである。That is, the cup-shaped portion 3'b is fitted and held by a rotationally driven holding member 8, and the threaded portion 3''a is fitted into a cylindrical shape-retaining member 9 that is supported by the holding member 8 so as to be movable up and down. The pressing member 10, which is rotated up and down, is brought into contact with the upper surface of the threaded part 3'a, and the threaded part 3'a is held together.
and cup-shaped part 3°b,! A rotatable curve regulating roller 11, which has a curve regulating surface 11a facing substantially the lower half of the threaded portion 3°a, is brought into contact with the joint section - (see the illustration on the right side of FIG. 6). Note that the holding member 8 and the pressing member 10 are driven to rotate in the same direction and at the same speed.
The shape-retaining member 9 and the pressing member 10 hold the upper surface closing wall of the block forming portion 3'a, and the suppressing member 1
It is lowered as the value of 0 is lowered.
この状態から、予備成形品３°を各部材８〜ｌＯと一体
的に回転させながら、押圧部材１０を下降させて、ねじ
形成部分３°ａの周壁を湾曲規制ローラ１１の湾曲規制
面１１ａに沿う略くの字状に湾曲させる（第６図左半部
図示参照）。かくして、第３図に示す如き、ねじ形成部
分３’ａが径方向外方に膨出状に湾曲され且つ口金３の
ねじ部３ａの軸線方向長さと一致する長さに短縮化され
た予備成形品３°を得る。なお、かかる予備成形品３°
を得る手段は、第６図に示すものに限られず、例えば加
圧流体を作用させることによってねじ形成部分３’ａを
湾曲させるようにするものでもよい。From this state, while rotating the preform 3° integrally with each member 8 to lO, the pressing member 10 is lowered, and the peripheral wall of the threaded portion 3°a is aligned with the curve regulating surface 11a of the curve regulating roller 11. (See the left half of FIG. 6). Thus, as shown in FIG. 3, a preform is formed in which the thread forming portion 3'a is curved to bulge outward in the radial direction and is shortened to a length that matches the length in the axial direction of the threaded portion 3a of the cap 3. Obtain a product of 3°. In addition, such preformed product 3°
The means for obtaining this is not limited to the one shown in FIG. 6, but may be one in which the threaded portion 3'a is curved by applying pressurized fluid, for example.
次いで、前記抑圧部材ｌＯを上記の下降状態に保持して
、前記各部材８・〜ｌＯでもってねし形成部分３’ａの
軸線方向長さを湾曲後の長さに維持させ且つ保形部材９
でもってねじ形成部分３°ａの内面径を湾曲前の径に維
持させうるべく保持させておき、ねじ形成部分３°ａの
軸線方向における全部分に対向する厚肉化作用面１２ａ
を有する自転自在な厚肉化ローラ１２を、ねじ形成部分
３゛ａの周壁外面に転接させる（第７図左半部図示参照
）。Next, the suppressing member 10 is held in the lowered state as described above, and the axial length of the deforming portion 3'a is maintained at the length after the bending by each of the members 8 to 10, and the shape retaining member 9
Therefore, the inner diameter of the threaded portion 3°a is maintained as much as possible at the diameter before bending, and the thickened working surface 12a faces the entire portion of the threaded portion 3°a in the axial direction.
A rotatable thickening roller 12 having a rotatable thickness is brought into rolling contact with the outer surface of the peripheral wall of the thread forming portion 3'a (see the left half of FIG. 7).
そして、この状態で、予備成形品３”を各部材８〜１０
と一体的に回転させながら、厚内化ローラ１２を径方向
内方へ移動させ、ねじ形成部分３゛ａの周壁を厚肉化ロ
ーラ１２の厚肉化作用面１２ａで徐々に圧縮させて、厚
肉化させる（第７図左半部図示参照）。かくして、第４
図に示す如き。In this state, each member 8 to 10 pieces of preformed product 3"
While rotating integrally with the thickening roller 12, the thickening roller 12 is moved radially inward, and the peripheral wall of the thread forming portion 3'a is gradually compressed by the thickening working surface 12a of the thickening roller 12, Increase the thickness (see the left half of Figure 7). Thus, the fourth
As shown in the figure.
ねじ形成部分３’ａの周壁が他の部分に比して十分に且
つ均一・に厚肉化された予備成形品３°を得る。なお、
厚肉化ローラ１２はねし形成部分３“ａの周方向におけ
る一箇所に転接するもので十分であるが、必要に応じて
その個数及び転接箇所を複数としておいてもよい。A preformed product 3° is obtained in which the peripheral wall of the thread forming portion 3'a is sufficiently and uniformly thickened compared to other portions. In addition,
It is sufficient for the thickened roller 12 to be in rolling contact with one location in the circumferential direction of the bulge forming portion 3''a, but the number and number of rolling contact locations may be increased as necessary.
ところで、予ｗ４成形品３′のねし形成部分３゜ａの厚
肉化は、第６図及び第７図に示す如くして行うに限定さ
れず、例えば第８図及び第９図に示す如くして行うこと
もできる。By the way, the thickening of the neck forming portion 3°a of the pre-W4 molded product 3' is not limited to the method shown in FIGS. 6 and 7, but is performed as shown in FIGS. 8 and 9, for example. It can also be done as follows.
すなわち、第２図に示す予備成形品３°のカップ状部分
３°ｂを保持部材８゛に嵌合保持させ、ねじ形成部分３
°ａの周壁をその内外面に転接する内保形部材９′及び
外保形部材１３．１４でもって挾持させ、ねじ形成部分
３’ａの上面部に押圧部材ｌＯ°を当接させる（第８図
参照）。保持部材８′、内保形部材９′及び押圧部材１
０’は各々第６図及び第７図に示す保持部材８、保形部
材９及び押圧部材１０と同様の構成１機能を有するもの
である。第１の外保形部材１３はねじ形成部分３°ａの
周壁の路上半部に転接しうるもので、押圧部材１０’の
下降に伴って下降せしめられるものであり、第２の外保
形部材１４はねじ形成部分３°ａの周壁の略下半部に転
接しうるものであって、内外保形部材１３．１４による
ねじ形成部分３°ａの周壁への軸線方向における転接域
は、該周壁の軸線方向における全範囲に亘るものとされ
ている。That is, the cup-shaped portion 3°b of the preformed product 3° shown in FIG.
The peripheral wall of °a is held between the inner and outer shape-retaining members 9' and 13.14 that are in contact with the inner and outer surfaces thereof, and the pressing member lO° is brought into contact with the upper surface of the threaded portion 3'a. (See Figure 8). Holding member 8', inner shape retaining member 9' and pressing member 1
0' has the same structure and function as the holding member 8, shape retaining member 9, and pressing member 10 shown in FIGS. 6 and 7, respectively. The first outer shape retaining member 13 can be brought into rolling contact with the road half of the peripheral wall of the threaded portion 3°a, and is lowered as the pressing member 10' descends. The member 14 can be in rolling contact with substantially the lower half of the peripheral wall of the threaded portion 3°a, and the rolling contact area in the axial direction with the peripheral wall of the threaded portion 3°a by the inner and outer shape retaining members 13.14 is as follows. , extending over the entire range in the axial direction of the peripheral wall.
この状態で、予備成形品３′を各部材８°〜ｌＯ°と一
体的に回転させながら、抑圧部材ｌＯ。In this state, while rotating the preform 3' integrally with each member 8° to 10°, the suppressing member 10 is rotated.
を下降させて、ねじ形成部分３°ａを軸線方向に徐々に
圧縮させると共に、これに伴って発生するねじ形成部分
３’ａの径方向への厚肉化変形量に対応して内外保形部
材８°及び１３．１４による挾持間隔を順次増大させ、
つまり外保形部材１３．１４を順次径方向外方へ移動さ
せていき、ねじ形成部分３°ａを口金３のねじ部３ａに
一致する軸線方向長さに短縮化させると共に厚肉化させ
る（第９図参照）。かくして、第６図及び第７図に示す
と同様に、第４図に示す如きねじ形成部分３゛ａが厚肉
化ｙれた予備成形品３′を得る。is lowered to gradually compress the threaded part 3'a in the axial direction, and to maintain the shape of the inner and outer parts in response to the thickening deformation of the threaded part 3'a in the radial direction that occurs accordingly. Gradually increasing the clamping distance between members 8° and 13.14,
In other words, the outer shape-retaining members 13 and 14 are sequentially moved radially outward, and the threaded portion 3°a is shortened to an axial length that matches the threaded portion 3a of the cap 3 and thickened ( (See Figure 9). 6 and 7, a preform 3' having a thickened thread forming portion 3'a as shown in FIG. 4 is obtained.
以上のようにして得られた第４図に示す予備成形品３の
ねじ形成部分３’ａの周壁に常法により所定ねじを形成
すると共に、ねじ形成部分３’ａの上面閉塞壁に前記蓋
体６に取付けられた高圧ガス容器等を挿入しうる貫通孔
３Ｃを形成して、第１図及び第５図に示す如きねじ部３
ａを有する板金製品たる口金３を得る。A predetermined thread is formed on the circumferential wall of the threaded portion 3'a of the preformed product 3 shown in FIG. A through hole 3C into which a high pressure gas container or the like attached to the body 6 can be inserted is formed, and a threaded portion 3 as shown in FIGS. 1 and 5 is formed.
A cap 3, which is a sheet metal product, having a is obtained.
なお、上記実施例においては、全体が回転体形状をなす
口金３を製造する場合について説明したが、本発明の方
法によれば、ねじ部は回転体形状であるが、全体として
は非回転体形状をなす板金製品をも好適に製造できるこ
と勿論である。また、ねじ部がねじ径の異なる複数のね
じ部からなるため、ねじ形成部分の階段状をなして厚肉
化させる必要のある板金製品であっても、これを好適に
製造することができる。In the above embodiment, a case was explained in which the cap 3 is manufactured in the shape of a rotating body as a whole, but according to the method of the present invention, although the threaded portion is in the shape of a rotating body, the base 3 as a whole is a non-rotating body. Of course, it is also possible to suitably manufacture sheet metal products having shapes. Further, since the threaded portion is composed of a plurality of threaded portions having different thread diameters, even sheet metal products that require a step-shaped threaded portion to be thickened can be suitably manufactured.
（発明の効果）
以上の説明から理解されるように、本発明の方法によれ
ば、金属素板を絞り加工して得られた予備成形品のねじ
形成部分を他の部分に比して十分に厚肉化した上で、こ
れにねじを形成してねじ部を成形するようにしたことに
よって、つまり強度上必要とされる部分のみを厚肉化さ
せるようにしたことによって、可及的に軽量で且つ材料
費を節約でき、しかもねじ部の強度を十分に確保した板
金製品を製造することができるのである。(Effects of the Invention) As can be understood from the above explanation, according to the method of the present invention, the thread forming part of the preform obtained by drawing a metal blank is sufficiently By making the wall thicker and then forming a thread on it to form the threaded part, in other words, by thickening only the parts where it is necessary for strength, we have made it as strong as possible. It is possible to manufacture a sheet metal product that is lightweight, saves material costs, and has sufficient strength at the threaded portion.
図面は本発明の一実施例を示したもので、第１図は本発
明の方法によって製造された板金製品を備えた消火器の
一部切欠側面図であり、第２図は金属素板を絞り加工し
て得られた予備成形品の縦断側面図、第３図は同予備成
形品のねじ形成部分の周壁を湾曲させた状態を示す縦断
側面図、第４図は同予備成形品のねじ形成部分の周壁を
厚肉化させた状態を示す縦断側面図、第５図は完成品た
る板金製品の縦断側面図であり、第６図は第３図に示す
予備成形品を得る工程を示す縦断側面図、第７図は第４
図に示す予備成形品を得る工程を示す縦断側面図であり
、第８図及び第９図は第６図及び第７図とは異なった方
法で第４図に示す予備成形品を得る工程を示した縦断側
面図で、第８図は厚肉化開始状態を示し、第９図は厚肉
化終了状態を示している。
３・・・口金（板金製品）
３′・・・予備成形品
３ａ・・・ねじ部
３’ａ・・・ねじ形成部分
８．８゛・・・保持部材
９・・・保形部材
９°・・・内保形部材
１０ 、１０ ’・・・押圧部材
１１・・・湾曲規制ローラ
１２・・・厚肉化ローラ
１３．１４・・・外保形部材 、
第１図
第２図
第３図
第４図 第５図
第６図 第７図
口
第９図
ｎThe drawings show one embodiment of the present invention; FIG. 1 is a partially cutaway side view of a fire extinguisher equipped with a sheet metal product manufactured by the method of the present invention, and FIG. A longitudinal side view of the preform obtained by drawing, FIG. 3 is a longitudinal side view showing the curved peripheral wall of the thread forming part of the preform, and FIG. 4 is a side view of the thread of the preform. FIG. 5 is a longitudinal side view showing a state in which the peripheral wall of the forming part is thickened, FIG. 5 is a longitudinal side view of the finished sheet metal product, and FIG. 6 shows the process of obtaining the preformed product shown in FIG. 3. Vertical side view, Figure 7 is the 4th
FIGS. 8 and 9 are longitudinal side views showing the process of obtaining the preform shown in FIG. 4, and FIGS. 8 and 9 show the process of obtaining the preform shown in FIG. In the longitudinal sectional side views shown, FIG. 8 shows a state in which thickening has started, and FIG. 9 shows a state in which thickening has been completed. 3... Cap (sheet metal product) 3'... Preformed product 3a... Threaded portion 3'a... Thread forming portion 8.8゛... Holding member 9... Shape retaining member 9° ...Inner shape retaining member 10, 10'...Press member 11...Curving regulating roller 12...Thickening roller 13,14...Outer shape retaining member, Fig. 1, Fig. 2, Fig. 3 Figure 4 Figure 5 Figure 6 Figure 7 Mouth Figure 9 n
Claims (3)
回転体形状をなすねじ形成部分を、他の部分に比して十
分に厚肉化させ、この厚肉化されたねじ形成部分に所定
のねじを形成させるようにすることを特徴とする、ねじ
部を有する板金製品の製造方法。(1) The thread-forming part forming the rotating body shape of the preform obtained by drawing a metal blank is made sufficiently thicker than the other parts, and this thickened screw A method for manufacturing a sheet metal product having a threaded portion, the method comprising forming a predetermined thread in the formed portion.
径方向外方に膨出状に湾曲させて軸線方向に短縮化させ
た上、ねじ形成部分を、その軸線方向長さ及び内面径の
変形を所定の範囲内に規制させうるべく保持させた状態
で、予備成形品をねじ形成部分の軸線回りで回転させな
がら、ねじ形成部分の外面を、その周方向における少な
くとも一箇所に転接する厚肉化ローラでもって径方向内
方へ徐々に圧縮させていくことによって、行われること
を特徴とする特許請求の範囲第１項に記載するねじ部を
有する板金製品の製造方法。(2) The thickening of the threaded portion causes the threaded portion to curve radially outward in a bulging shape and shorten in the axial direction. While the preform is rotated around the axis of the threaded part while the diameter deformation is held within a predetermined range, the outer surface of the threaded part is rotated at at least one point in the circumferential direction. A method for manufacturing a sheet metal product having a threaded portion according to claim 1, wherein the method is performed by gradually compressing the sheet metal product radially inward using a thickening roller that is in contact with the sheet metal product.
周方向における少なくとも一箇所をその内外面に転接す
る内外保形部材でもって挾持させた状態で、予備成形品
をねじ形成部分の軸線回りで回転させながら、ねじ形成
部分を軸線方向に徐々に圧縮させると共に、これに伴っ
て発生するねじ形成部分の径方向への厚肉化変形量に対
応して前記内外保形部材による挾持間隔を順次増大させ
ていくことによって、行われることを特徴とする特許請
求の範囲第１項に記載するねじ部を有する板金製品の製
造方法。(3) The thickening of the thread forming portion allows the preform to be sandwiched between the inner and outer shape retaining members that are in rolling contact with the inner and outer surfaces of at least one circumferential portion of the thread forming portion. While rotating around the axis, the threaded portion is gradually compressed in the axial direction, and is clamped by the inner and outer shape retaining members in response to the thickening deformation of the threaded portion in the radial direction that occurs along with this. A method of manufacturing a sheet metal product having a threaded portion according to claim 1, characterized in that the manufacturing method is carried out by sequentially increasing the interval.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8573884A JPS60227943A (en) | 1984-04-26 | 1984-04-26 | Production of plateworked product having screw part |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8573884A JPS60227943A (en) | 1984-04-26 | 1984-04-26 | Production of plateworked product having screw part |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS60227943A true JPS60227943A (en) | 1985-11-13 |
Family
ID=13867177
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8573884A Pending JPS60227943A (en) | 1984-04-26 | 1984-04-26 | Production of plateworked product having screw part |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS60227943A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001026840A1 (en) * | 1999-10-15 | 2001-04-19 | Araco Kabushiki Kaisha | Cold forging and method of manufacturing the cold forging |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50110966A (en) * | 1974-01-22 | 1975-09-01 | ||
| JPS5659546A (en) * | 1979-10-22 | 1981-05-23 | Kanemitsu Doukou Yousetsushiyo:Goushi | Production of poly v-pulley made by plate working |
| JPS5788929A (en) * | 1977-02-04 | 1982-06-03 | Drive Mfg Inc | Pulley and its manufacture |
| JPS5847534A (en) * | 1981-09-18 | 1983-03-19 | Mitsuike Kogyo Kk | Manufacture of pulley provided with multiple v-groove |
-
1984
- 1984-04-26 JP JP8573884A patent/JPS60227943A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50110966A (en) * | 1974-01-22 | 1975-09-01 | ||
| JPS5788929A (en) * | 1977-02-04 | 1982-06-03 | Drive Mfg Inc | Pulley and its manufacture |
| JPS5659546A (en) * | 1979-10-22 | 1981-05-23 | Kanemitsu Doukou Yousetsushiyo:Goushi | Production of poly v-pulley made by plate working |
| JPS5847534A (en) * | 1981-09-18 | 1983-03-19 | Mitsuike Kogyo Kk | Manufacture of pulley provided with multiple v-groove |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2001026840A1 (en) * | 1999-10-15 | 2001-04-19 | Araco Kabushiki Kaisha | Cold forging and method of manufacturing the cold forging |
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