JPH0241381B2 - - Google Patents
Info
- Publication number
- JPH0241381B2 JPH0241381B2 JP57190363A JP19036382A JPH0241381B2 JP H0241381 B2 JPH0241381 B2 JP H0241381B2 JP 57190363 A JP57190363 A JP 57190363A JP 19036382 A JP19036382 A JP 19036382A JP H0241381 B2 JPH0241381 B2 JP H0241381B2
- Authority
- JP
- Japan
- Prior art keywords
- bowl
- sheet metal
- pulley
- plate
- shaped
- 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.)
- Expired
Links
- 239000000463 material Substances 0.000 claims description 30
- 239000002184 metal Substances 0.000 claims description 26
- 238000004519 manufacturing process Methods 0.000 claims description 4
- 230000002093 peripheral effect Effects 0.000 claims description 2
- 238000000465 moulding Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 5
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000007665 sagging Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010273 cold forging Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 235000013372 meat Nutrition 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 239000002994 raw material 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
- B21D53/00—Making other particular articles
- B21D53/26—Making other particular articles wheels or the like
- B21D53/261—Making other particular articles wheels or the like pulleys
Description
【発明の詳細な説明】
本発明はタイミングベルト用板金プーリーの製
造法に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a sheet metal pulley for a timing belt.
第１図Ａ，Ｂ図は本発明の対象となる板金プー
リー１を示す。この板金プーリーは図示するよう
に周面に矩形波状歯形２を有する円筒部３と該円
筒部３の片側開口部を覆う底板部４とをプレス加
工によつて成形して成るものである。即ち、上記
板金プーリーは第２図Ａ図に示すように、一枚の
円形のプレートａを打ち抜き、この円形プレート
ａに深絞りプレス加工を与えて同Ｂ図に示す如き
椀形板金プーリー素材１ａを作り、該椀形板金プ
ーリー素材１ａの円筒部３ａに歯形成形プレス加
工を与え製造されるもので、板材からプレス加工
で容易に量産でき、軽量且つ廉価であるところか
ら車輛等におけるタイミングベルト用プーリーと
して多く採用されるに至つている。 FIGS. 1A and 1B show a sheet metal pulley 1 to which the present invention is applied. As shown in the figure, this sheet metal pulley is made up of a cylindrical part 3 having rectangular wave-shaped teeth 2 on its circumferential surface and a bottom plate part 4 covering an opening on one side of the cylindrical part 3, which are formed by press working. That is, as shown in FIG. 2A, the sheet metal pulley is made by punching out a single circular plate a, and deep-drawing the circular plate a to form a bowl-shaped sheet metal pulley material 1a as shown in FIG. 2B. The cylindrical portion 3a of the bowl-shaped sheet metal pulley material 1a is manufactured by applying tooth-forming press processing to the cylindrical portion 3a of the bowl-shaped sheet metal pulley material 1a.It can be easily mass-produced from sheet material by press processing, and is lightweight and inexpensive, making it suitable for use in timing belts in vehicles, etc. It has come to be widely used as a pulley.
然るに上記板金プーリー１は上記利点を有する
反面、薄板に深絞りプレス加工を与えた場合、第
３図に示すように椀形板金プーリー素材１ａの円
筒部３ａと底板部４ａの連設部、即ち底部環状コ
ーナ部５ａに肉引け現象（板厚の減少）を生ずる
ことが不可避とされている。図中６ａは上記肉引
けによつて生じたコーナ肉薄部を示している。 However, while the sheet metal pulley 1 has the above-mentioned advantages, when a thin plate is subjected to deep drawing press processing, as shown in FIG. It is considered inevitable that a thinning phenomenon (reduction in plate thickness) will occur in the bottom annular corner portion 5a. In the figure, 6a indicates a corner thin portion caused by the above-mentioned thinning.
而して、上記の如き椀形板金プーリー素材３ａ
に歯形成形プレス加工を与えて底部環状コーナ部
５ａから円筒部３ａの末端に向け（第３図中プレ
ス方向を矢印で示す）歯形成形プレス加工を行つ
た場合、同コーナ部５ａに材料の塑性加工に耐え
得る板厚が不足（コーナ肉薄部６ａの存在）して
いるため、同所に応力集中が生じて他所より材料
の伸びが大きいことも加わつて歯形成形後は第４
図、第５図に示す如く同コーナ部５ａの肉薄部６
ａの肉厚が益々肉薄となつて（６は同歯形成形後
のコーナ肉薄部を示す）破断を生じたり、又は破
断に至らなくとも歯形のダレ７を顕著に生じ、有
効歯長の大巾な減少、プーリーの剛性の低下等の
不具合を招く結果となる。 Therefore, the above-mentioned bowl-shaped sheet metal pulley material 3a
When tooth forming press working is performed from the bottom annular corner part 5a toward the end of the cylindrical part 3a (the pressing direction is indicated by an arrow in FIG. 3), the plasticity of the material is applied to the corner part 5a. Because the plate thickness is insufficient to withstand machining (the presence of the thin corner part 6a), stress concentration occurs in this area, and the elongation of the material is greater than in other areas.
As shown in FIG.
The wall thickness of a becomes thinner and thinner (6 indicates the corner thinner part after tooth preparation), causing a fracture, or even if it does not result in a fracture, a noticeable sagging 7 of the tooth profile occurs, resulting in a large width of the effective tooth length. This results in problems such as a decrease in the strength of the pulley and a decrease in the rigidity of the pulley.
このような肉引けのプーリーはベルトによる伝
達において、荷重を受けてコーナ部に応力集中し
（片持ち構造であるので）、使用中に亀裂、破断が
入ることがある。又有効歯巾の減少は摩擦を異常
に高めてベルト寿命を短縮したり、ベルト掛駆動
時の片寄りの現象を起こす原因ともなる。 When a pulley with such a thin wall is used for transmission using a belt, stress is concentrated at the corner part when the load is applied (because it has a cantilevered structure), which may cause cracks or breakage during use. In addition, a decrease in the effective tooth width may abnormally increase friction, shorten the belt life, or cause a phenomenon of deviation during belt drive.
上記板金プーリーの欠点は歯形の歯高が高くな
る程顕著となり、このためこの歯高を一定限度以
上に高くし性能アツプを図ることは困難とされて
いた。 The drawbacks of the above sheet metal pulley become more pronounced as the tooth height of the tooth profile increases, and for this reason, it has been difficult to increase the tooth height beyond a certain limit to improve performance.
而して、本発明は前記板金プーリーの利点を喪
失することなく、上記諸問題を抜本的に解決すべ
く創案されたものであり、第６図以降は同目的に
沿う本発明の実施例を示す。 Therefore, the present invention was devised to fundamentally solve the above problems without losing the advantages of the sheet metal pulley, and FIG. 6 and subsequent figures show embodiments of the present invention that meet the same objective. show.
即ち、第６図Ａ図に示すように先ず打抜き板か
又は金属塊に冷間鍛造を与えてプレート化した完
成プーリーより肉厚の円形プレートa1を用意し、
該円形プレートa1に同B1，B2図に示すようにプ
レス加工を与えて底板４に相当する部分４ｂ，４
ｃの肉厚を減少させつつ、円形プレート外周部領
域に予め肉厚部８を盛り上げたプレートb1又はb2
を準備する。 That is, as shown in FIG. 6A, first prepare a circular plate a1 that is thicker than the finished pulley, which is made by cold forging a punched plate or a metal block and making it into a plate.
The circular plate a1 is pressed as shown in Figures B1 and B2 to form parts 4b and 4 corresponding to the bottom plate 4.
Plate b 1 or b 2 in which thick portion 8 is raised in advance on the outer peripheral region of the circular plate while decreasing the wall thickness of c.
Prepare.
第６図B1図は上記肉厚部８の形成と共に、底
板４ｂを予備成形した場合を示し、第６図B2図
は底板４に相当する部分４ｃをフラツトにし、肉
厚部８を同プレートの片面に盛り上げた場合を示
す。 Fig. 6B1 shows the case in which the bottom plate 4b is preformed together with the formation of the thick part 8, and Fig. 6B2 shows the case where the part 4c corresponding to the bottom plate 4 is made flat and the thick part 8 is formed in the same way. This shows the case where it is piled up on one side of the plate.
次で、上記肉厚部８を成形したプレートb1又は
b2に既述した深絞りプレス加工を施す。該深絞り
プレス加工にて第６図Ｃ図に示すように円筒部３
ｂと底板部４ｄから成る椀形プーリー素材１ｂを
成形すると共に、肉厚部８で該椀形プーリー素材
１ｂの底部環状コーナ部５ｂを成形し、同コーナ
部５ｂに同肉厚部８による余肉６ｂを盛り上げ
る。 Next, plate b 1 or
b Perform the deep drawing press process described in 2 above. Through the deep drawing press process, the cylindrical portion 3 is formed as shown in FIG. 6C.
At the same time, a bowl-shaped pulley material 1b consisting of a bottom plate portion 4d and a bottom plate portion 4d is formed, and a bottom annular corner portion 5b of the bowl-shaped pulley material 1b is formed using the thick wall portion 8. Serve meat 6b.
第６図Ｃ図は上記肉厚部８を内側にして円筒部
３ｂを深絞り成形し、主として底部環状コーナ部
５ｂの内側に上記余肉６ｂを多く盛上げた場合を
示す。６ｃは底部環状コーナ部５ｂの外側に盛上
げられた余肉を示す。 FIG. 6C shows a case in which the cylindrical portion 3b is deep drawn with the thick portion 8 inside, and a large amount of the extra thickness 6b is built up mainly inside the bottom annular corner portion 5b. Reference numeral 6c indicates the extra thickness built up on the outside of the bottom annular corner portion 5b.
第６図B2図、第８図、第９図に示すように本
発明において好ましくは肉厚部８の内円肉厚部ｔ
をコーナ部５ｂとなる位置に位置させてプレス成
形し、これをコーナ部へ材料移動させ上記余肉６
ｂ，６ｃを形成する。 6B As shown in FIG. 2 , FIG. 8, and FIG. 9, in the present invention, it is preferable to
is positioned at a position that will become the corner portion 5b, and press-formed, and the material is moved to the corner portion to form the extra thickness 6.
b, 6c are formed.
実施例として上記肉厚部８を外側にして円筒部
３ｂを深絞りプレス加工すれば椀形プーリー素材
３ｂの底部環状コーナ部５ｂの外側に上記余肉６
ｃを多く盛上げることができる。 As an example, if the cylindrical part 3b is deep-drawn pressed with the thick part 8 on the outside, the extra thickness 6 is formed on the outside of the bottom annular corner part 5b of the bowl-shaped pulley material 3b.
You can increase the amount of c.
又他の実施例として第９図は上記肉厚部８を円
形プレートの表裏面に形成し、上記深絞りプレス
加工を施し、底部環状コーナ部５ｂの内外側に上
記余肉６ｂ，６ｃを盛上げた場合を示す。 As another embodiment, FIG. 9 shows that the thick portions 8 are formed on the front and back surfaces of a circular plate, the deep drawing press is applied, and the extra thicknesses 6b and 6c are built up on the inside and outside of the bottom annular corner portion 5b. This shows the case where
第７図は底部環状コーナ部５ｂの外側に余肉６
ｃを盛り上げる実施例を示す。即ち、椀形プーリ
ー素材１ｂの素材として同Ａ図に示すように円板
プレート裏面に環状肉厚部８ａを成形したプレー
トb3を準備し、該環状肉厚部８ａを底部環状コー
ナ部５ｂの成形部付近に限り突成し、これを外側
にして上記深絞りプレス加工を行えば、同底部環
状コーナ部５ｂの外側に余肉６ｃを膨出成形する
ことができる。 Figure 7 shows an extra wall 6 on the outside of the bottom annular corner 5b.
An example is shown to enhance c. That is, as shown in Figure A, a plate b3 is prepared as a raw material for the bowl-shaped pulley material 1b, and the annular thick part 8a is formed on the back surface of the disc plate. By protruding only near the molded part and performing the deep drawing press process with this protrusion on the outside, it is possible to bulge the extra thickness 6c on the outside of the bottom annular corner part 5b.
第８図Ａ，Ｂ図は上記椀形プーリー素材１ｂの
深絞りプレス加工の成形装置を示している。図に
おいて９は椀形プーリー素材１ｂの内形を成形す
る雄型、１０は同外形を成形する雌型、１１は雌
型１０内に上下動可に内装された底板部４ｄを成
形する摺動型を示す。 FIGS. 8A and 8B show a forming apparatus for deep drawing press processing of the bowl-shaped pulley material 1b. In the figure, 9 is a male mold for molding the inner shape of the bowl-shaped pulley material 1b, 10 is a female mold for molding the same outer shape, and 11 is a sliding mold for molding the bottom plate part 4d that is vertically movable inside the female mold 10. Show type.
前記肉厚部８又は８ａを盛り上げたプレート
b1，b2若しくはb3を上記雌型１０及び摺動型１１
上に支持し、雄型９を下降して摺動型１１と衝合
させつつ、雌型１０内に突き入れる。この結果、
上記椀形プーリー素材１ｂが成形される。この時
上記肉厚部８又は８ａを円筒部３ｂと底板部４ｄ
の連設部（折曲部）に位置させ、雄型９と摺動型
１１のコーナ部に肉厚部８又は８ａの逃げを許容
する部分を形成しておけば、上記余肉６ｂ又は６
ｃ若しくは両者６ｂ，６ｃの成形が可能である。 Plate with raised thick part 8 or 8a
b 1 , b 2 or b 3 into the female mold 10 and the sliding mold 11
Supported above, the male die 9 is lowered and pushed into the female die 10 while colliding with the sliding die 11. As a result,
The bowl-shaped pulley material 1b is molded. At this time, the thick part 8 or 8a is connected to the cylindrical part 3b and the bottom plate part 4d.
If a part is formed at the corner part of the male die 9 and the sliding die 11 to allow the thick part 8 or 8a to escape, the extra thickness 6b or 6
c or both 6b and 6c are possible.
斯くして成形された椀形板金プーリー素材１ｂ
に歯形成形プレス加工を施す。この歯形成形プレ
ス加工法は第８図Ａ，Ｂ図の椀形板金プーリー素
材１ｂの成形の場合と原理を共通にする。即ち、
プレートb2を椀形板金プーリー素材１ｂに置き換
え、雄型９の周囲に矩形波型を形成し、雌型１０
にこれと咬合する矩形波型を形成してあると考え
れば良い。 Bowl-shaped sheet metal pulley material 1b thus formed
Apply tooth forming press processing to. This tooth forming press working method shares the principle with the case of forming the bowl-shaped sheet metal pulley material 1b shown in FIGS. 8A and 8B. That is,
The plate b2 is replaced with a bowl-shaped sheet metal pulley material 1b, a rectangular wave pattern is formed around the male mold 9, and the female mold 10 is
It can be thought that a rectangular wave shape is formed that interlocks with this.
斯くして椀形板金プーリー素材１ｂの底部環状
コーナ部５ｂから同円筒部３ｂの末端に向けてプ
レス加工が施され前記歯形２の成形が行われる。 In this way, press working is performed from the bottom annular corner portion 5b of the bowl-shaped sheet metal pulley material 1b toward the end of the cylindrical portion 3b to form the tooth profile 2.
既述の通り、椀形板金プーリー素材１ｂの底部
環状コーナ部５ｂには余肉６ｂ又は６ｃ若しくは
その双方６ｂ，６ｃが予め加工されており、上記
歯形成形プレス加工にて、該余肉６ｂ又は６ｃを
軸方向即ち円筒部と平行に延伸させつつ、歯形２
が成形されるに至る。 As mentioned above, the bottom annular corner portion 5b of the bowl-shaped sheet metal pulley material 1b has an extra thickness 6b or 6c or both 6b, 6c processed in advance, and the extra thickness 6b or 6c is processed in the above-mentioned tooth forming press processing. 6c in the axial direction, that is, in parallel with the cylindrical portion, the tooth profile 2
is formed.
この結果、前記歯形２の端部のダレ７を減少
し、有効歯長を可及的に大きくすることが可能で
あると共に、歯形成形プレス加工後のコーナ部５
ａに肉引きを生じても板厚不足を生ずることがな
い。 As a result, it is possible to reduce the sag 7 at the end of the tooth profile 2, to increase the effective tooth length as much as possible, and to improve the shape of the corner portion 5 after the tooth forming press work.
Even if thinning occurs in a, there will be no shortage of board thickness.
従つて板金プーリーのプレス成形の利点を活か
しつつ、有効歯長の大巾な減少、プーリーの剛性
の低下を招くことがなく、歯高をより高く成形す
ることが可能となる。 Therefore, while taking advantage of the advantages of press forming of a sheet metal pulley, it is possible to form the tooth height higher without causing a large reduction in the effective tooth length or a decrease in the rigidity of the pulley.
又上記の如く歯形２の健全なる成形がなされ、
且つ円筒部３と底板部４の連設部（折曲部）、即
ち底部環状コーナ部５ｂのコーナ肉薄部６の生成
を抑制することが可能であり、これによつてこれ
に掛合せされるベルトの安定なる駆動が保障さ
れ、ベルト片寄り、同早期損傷を生じたりするこ
とのない高品質の板金プーリーを提供できる。 Also, as mentioned above, the tooth profile 2 is formed soundly,
In addition, it is possible to suppress the formation of a corner thin part 6 of the continuous part (bent part) of the cylindrical part 3 and the bottom plate part 4, that is, the bottom annular corner part 5b, and thereby the corner thin part 6 that overlaps with this can be suppressed. It is possible to provide a high-quality sheet metal pulley that ensures stable belt drive and does not cause belt deviation or early damage.
この結果、冒頭に述べた板金プーリーのプレス
加工における課題を効果的に解消し、その実用性
をより現実的なものとすることができる。 As a result, the above-mentioned problems in press working of sheet metal pulleys can be effectively solved, and the practicality thereof can be made more realistic.
第１図Ａ図は本発明の対象となる板金プーリー
の平面図、同Ｂ図は同Ａ−Ａ線断面図、第２図
Ａ，Ｂ図は従来の板金プーリーの成形工程を要述
し、同Ａ図は円形プレート断面図、同Ｂ図は椀形
プーリー素材断面図、第３図は同椀形プーリー素
材の底部環状コーナ部の拡大断面図、第４図は同
椀形プーリー素材より成形された板金プーリーの
歯形部拡大図、第５図は同Ｂ−Ｂ線断面図、第６
図以降は本発明の実施例を示し、同Ａ図は円形プ
レート断面図、同B1図は肉厚部を成形したプレ
ート断面図、同B2図は他例の肉厚部を成形した
プレート断面図、同Ｃ図は椀形プーリー素材断面
図、第７図Ａ，Ｂ図は他例の肉厚部成形例を示
し、同Ａ図は同プレート断面図、同Ｂ図は同椀形
プーリー素材断面図、第８図Ａ，Ｂ図は椀形プー
リー素材のプレス成形装置例の断面図を示し、同
Ａ図は成形前の状態、同Ｂ図は成形後の状態を示
し、第９図は他例を示すプレス断面図である。
１……板金プーリー、２……同歯形、３……同
円筒部、４……同底板部、５……同底部環状コー
ナ部、６……コーナ肉薄部、７……ダレ、８，８
ａ……肉厚部、a1……円板プレート、b1，b2，b3
……肉厚部成形プレート、１ｂ……椀形プーリー
素材、３ｂ……同円筒部、４ｄ……同底板部、５
ｂ……同底部環状コーナ部、６ｂ，６ｃ……同余
肉、９……雄型、１０……雌型、１１……摺動
型、ｔ……内円肉厚部。
FIG. 1A is a plan view of a sheet metal pulley to which the present invention is applied, FIG. 1B is a cross-sectional view taken along the line A-A, and FIGS. Figure A is a sectional view of a circular plate, Figure B is a sectional view of a bowl-shaped pulley material, Figure 3 is an enlarged sectional view of the bottom annular corner of the same bowl-shaped pulley material, and Figure 4 is a molded from the same bowl-shaped pulley material. Fig. 5 is an enlarged view of the tooth profile of the sheet metal pulley.
The following figures show embodiments of the present invention: Figure A is a cross-sectional view of a circular plate, Figure B1 is a cross-sectional view of a plate with a molded thick part, and Figure B2 is a plate with a molded thick part of another example. Figure 7A is a sectional view of the bowl-shaped pulley material, Figures 7A and 7B show other examples of thick-walled part molding, Figure 7A is a sectional view of the same plate, and Figure 7B is a sectional view of the same bowl-shaped pulley. Material cross-sectional view, Figures 8A and 8B show cross-sectional views of an example of a press molding device for bowl-shaped pulley materials, Figure A shows the state before molding, Figure B shows the state after molding, and Figure 9A shows the state after molding. is a press sectional view showing another example. 1... Sheet metal pulley, 2... Same tooth profile, 3... Same cylindrical part, 4... Same bottom plate part, 5... Same bottom annular corner part, 6... Corner thin part, 7... Sagging, 8, 8
a... Thick part, a 1 ... Disc plate, b 1 , b 2 , b 3
... Thick part molded plate, 1b... Bowl-shaped pulley material, 3b... Same cylindrical part, 4d... Same bottom plate part, 5
b... Bottom annular corner part, 6b, 6c... Same extra thickness, 9... Male type, 10... Female type, 11... Sliding type, t... Inner circular thick part.
Claims (1)
形プーリー素材を成形する場合に、上記円形プレ
ートの外周部領域に予め肉厚部を環状に盛り上げ
ておき、該環状肉厚部にて上記椀形プーリー素材
の底部環状コーナ部を成形することにより該底部
環状コーナ部に余肉を盛り上げ、該余肉を上記椀
形プーリー素材の円筒部へ延伸させつつ歯形成形
プレス加工を行なうことを特徴とする板金プーリ
ーの製造法。 ２ 上記余肉を底部環状コーナ部の内側に盛り上
げたことを特徴とする特許請求の範囲第１項記載
の板金プーリーの製造法。 ３ 上記余肉を底部環状コーナ部の外側に盛り上
げたことを特徴とする特許請求の範囲第１項記載
の板金プーリーの製造法。[Claims] 1. When forming a bowl-shaped pulley material by applying deep drawing press processing to a circular plate, a thick wall portion is raised in advance in an annular shape on the outer peripheral region of the circular plate, and the annular wall thickness is By forming the bottom annular corner part of the bowl-shaped pulley material at the step, excess thickness is built up in the bottom annular corner part, and tooth forming press processing is performed while extending the excess thickness to the cylindrical part of the bowl-shaped pulley material. A method of manufacturing a sheet metal pulley, which is characterized by: 2. The method of manufacturing a sheet metal pulley according to claim 1, wherein the excess thickness is raised inside the bottom annular corner portion. 3. The method of manufacturing a sheet metal pulley according to claim 1, wherein the excess thickness is raised on the outside of the bottom annular corner portion.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57190363A JPS5978737A (en) | 1982-10-29 | 1982-10-29 | Production of plateworked pulley |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57190363A JPS5978737A (en) | 1982-10-29 | 1982-10-29 | Production of plateworked pulley |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5978737A JPS5978737A (en) | 1984-05-07 |
| JPH0241381B2 true JPH0241381B2 (en) | 1990-09-17 |
Family
ID=16256934
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57190363A Granted JPS5978737A (en) | 1982-10-29 | 1982-10-29 | Production of plateworked pulley |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5978737A (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62220232A (en) * | 1986-03-20 | 1987-09-28 | Mazda Motor Corp | Manufacture of sheet metal made gear like parts |
| JPH0510982Y2 (en) * | 1986-04-23 | 1993-03-17 | ||
| DE8803780U1 (en) * | 1988-03-19 | 1988-06-23 | Winkelmann & Pannhoff Gmbh, 4730 Ahlen, De | |
| JP2007014984A (en) * | 2005-07-07 | 2007-01-25 | Zeniya Aluminum Engineering Ltd | Disk-like stepped material, pressed product composed of it and method for manufacturing it |
| EP1894646B1 (en) * | 2006-09-01 | 2012-10-17 | Feintool Intellectual Property AG | Method and device for producing a spline on a formed and precision blanked three dimensional body |
| JP5569458B2 (en) * | 2011-04-18 | 2014-08-13 | 株式会社デンソー | Valve timing adjustment device |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5923894B2 (en) * | 1976-12-22 | 1984-06-05 | トヨタ自動車株式会社 | How to manufacture gears from flat plate materials |
-
1982
- 1982-10-29 JP JP57190363A patent/JPS5978737A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5978737A (en) | 1984-05-07 |
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