JP2782364B2 - Method of manufacturing block ring for synchronous mesh transmission - Google Patents
Method of manufacturing block ring for synchronous mesh transmissionInfo
- Publication number
- JP2782364B2 JP2782364B2 JP23232789A JP23232789A JP2782364B2 JP 2782364 B2 JP2782364 B2 JP 2782364B2 JP 23232789 A JP23232789 A JP 23232789A JP 23232789 A JP23232789 A JP 23232789A JP 2782364 B2 JP2782364 B2 JP 2782364B2
- Authority
- JP
- Japan
- Prior art keywords
- cutting member
- block ring
- tooth
- punch
- outer peripheral
- 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 - Lifetime
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- Forging (AREA)
Description
【発明の詳細な説明】 A.発明の目的 （１） 産業上の利用分野 本発明は、同期噛合い式変速機用ブロックリング、特
に、変速ギヤのコーンを囲繞するテーパ孔を備えた短筒
体と、その短筒体の一端部外周面に突設された複数の歯
部とよりなるブロックリングの製造方法に関する。DETAILED DESCRIPTION OF THE INVENTION A. Object of the Invention (1) Field of the Invention The present invention relates to a block ring for a synchronous mesh transmission, and more particularly, to a short cylinder having a tapered hole surrounding a cone of a transmission gear. The present invention relates to a method for manufacturing a block ring including a body and a plurality of teeth projecting from an outer peripheral surface of one end of the short cylindrical body.
（２） 従来の技術 従来、この種ブロックリングは、プレス鍛造法等を適
用して数工程を経て製造されている。(2) Conventional technology Conventionally, this kind of block ring is manufactured through several steps by applying a press forging method or the like.
（３） 発明が解決しようとする課題 しかしながら、前記従来法によると工程が煩雑であっ
て、量産性が悪く、そのためブロックリングの製造コス
トが嵩む、という問題がある。(3) Problems to be Solved by the Invention However, according to the conventional method, there is a problem that the steps are complicated, mass productivity is poor, and the manufacturing cost of the block ring increases.
本発明は、前記に鑑み、１回の塑性加工でブロックリ
ングを得ることのできる前記製造方法を提供することを
目的とする。In view of the above, an object of the present invention is to provide the above-described manufacturing method capable of obtaining a block ring by one plastic working.
B.発明の構成 （１） 課題を解決するための手段 本発明は、変速ギヤのコーンを囲繞するテーパ孔を備
えた短筒体と、該短筒体の一端部外周面に突設された複
数の歯部とよりなる同期噛合い式変速機用ブロックリン
グを製造するに当り、金属製環状素材の外周部を、ポン
チに設けられた第１切断部材とダイスに設けられた第２
切断部材とにより挾着した状態にて、前記金属製素材の
内周部に前記ポンチにより曲げ加工を施して前記短筒体
に対応する筒部を形成すると共に該筒部の一端部外周面
にフランジ部を成形し、次いで前記フランジ部に、前記
第１切断部材と第２切断部材との協働により剪断加工を
施して前記複数の歯部に対応する複数の歯形部を形成
し、その後前記筒部に、前記ポンチ、ダイスおよび第１
切断部材の協働で画成された短筒体成形用キャビティ内
で、また各歯形部に、前記第１および第２切断部材の協
働で画成された各歯部成形用キャビティ内でそれぞれ圧
縮加工を施して前記短筒体および各歯部を成形すること
を特徴とする。B. Configuration of the Invention (1) Means for Solving the Problems According to the present invention, a short cylinder having a tapered hole surrounding a cone of a transmission gear, and one end of the short cylinder protruding from the outer peripheral surface. In manufacturing a block ring for a synchronous mesh transmission including a plurality of teeth, an outer peripheral portion of a metal annular material is provided with a first cutting member provided on a punch and a second cutting member provided on a die.
While being clamped by the cutting member, the inner peripheral portion of the metal material is bent by the punch to form a tubular portion corresponding to the short tubular body, and the outer peripheral surface of one end portion of the tubular portion is formed. Forming a flange portion, and then performing a shearing process on the flange portion in cooperation with the first cutting member and the second cutting member to form a plurality of tooth profiles corresponding to the plurality of tooth portions; The punch, the die and the first
In the short cylinder molding cavity defined by the cooperation of the cutting member, and in each tooth profile, in each tooth molding cavity defined by the cooperation of the first and second cutting members, respectively. It is characterized in that the short cylinder and each tooth portion are formed by compression.
（２） 作用 前記方法によれば、環状素材からブロックリングが１
回の塑性加工によって製造される。(2) Action According to the above method, one block ring is formed from the annular material.
Manufactured by plastic working.
（３） 実施例 第１図は公知の同期噛合い式変速機の一部を示し、主
軸１に回転可能に支持された変速ギヤとしての駆動ギヤ
２に、副軸３に嵌着された従動ギヤ４が噛合している。
主軸１に嵌着されたハブ５にスリーブ６が噛合し、その
ハブ５と駆動ギヤ２のコーン７との間に金属製ブロック
リング８が介装される。(3) Embodiment FIG. 1 shows a part of a known synchronous meshing type transmission, in which a driven gear 2 as a transmission gear rotatably supported on a main shaft 1 is fitted to a sub shaft 3. Gear 4 is engaged.
A sleeve 6 meshes with a hub 5 fitted on the main shaft 1, and a metal block ring 8 is interposed between the hub 5 and the cone 7 of the drive gear 2.
ブロックリング８は、第２〜第４図にも示すように駆
動ギヤ２のコーン７を囲繞するテーパ孔９を備えた短筒
体10と、その短筒体10の一端部外周面に突設された複数
の歯部11とよりなる。短筒体10のテーパ孔９に、複数の
ペーパベースの摩擦材セグメント12が相隣るもの相互間
にオイル溝13を存して接着される。なお、第２〜第４図
のブロックリング８は、塑性加工直後のものであり、し
たがって摩擦材セグメント12およびテーパ孔９開口縁の
面取りは省かれている。The block ring 8 has a short cylindrical body 10 having a tapered hole 9 surrounding the cone 7 of the drive gear 2 as shown in FIGS. 2 to 4, and protrudes from an outer peripheral surface of one end of the short cylindrical body 10. And a plurality of tooth portions 11 formed. A plurality of paper-based friction material segments 12 are bonded to the tapered hole 9 of the short cylindrical body 10 with an oil groove 13 between adjacent ones. The block ring 8 in FIGS. 2 to 4 is just after the plastic working, and therefore the chamfer of the friction material segment 12 and the opening edge of the tapered hole 9 is omitted.
第５〜第７図において、ブロックリング製造装置14
は、互に協働してブロックリング８の製造を行う上部加
工ブロック151と下部加工ブロック152とを備えている。In FIG. 5 to FIG.
Is provided with one upper processing block 15 for producing the block ring 8 mutually cooperates with the lower processing block 15 2.
上部加工ブロック151は次のように構成される。Upper machining block 15 1 is constructed as follows.
即ち、昇降板16の下面にポンチホルダ17が取付けら
れ、そのポンチホルダ17にポンチ18が保持される。ポン
チ18は円柱状本体19と、その本体19の下端に連設された
円錐台形加工部20とよりなり、本体19の上端部がポンチ
ホルダ17に保持され、また加工部20のテーパ面21はブロ
ックリング８のテーパ孔９に対応する。加工部20は、そ
の大径端が上部に、また小径端が下部にそれぞれ位置す
るように形成される。That is, the punch holder 17 is attached to the lower surface of the elevating plate 16, and the punch 18 is held by the punch holder 17. The punch 18 comprises a cylindrical main body 19 and a frustoconical processing part 20 continuously provided at the lower end of the main body 19, the upper end of the main body 19 is held by the punch holder 17, and the tapered surface 21 of the processing part 20 is a block. It corresponds to the tapered hole 9 of the ring 8. The processed portion 20 is formed such that its large-diameter end is located at the upper part and the small-diameter end is located at the lower part.
第６図にも示すように、ポンチホルダ17の上下方向中
間部に、水平面内において十字形をなす摺動孔22が形成
され、その摺動孔22に、それと同一形状のガイド部材23
が摺動自在に嵌合される。As shown in FIG. 6, a sliding hole 22 having a cross shape in a horizontal plane is formed in a vertically intermediate portion of the punch holder 17, and a guide member 23 having the same shape as the sliding hole 22 is formed in the sliding hole 22.
Are slidably fitted.
ポンチ18の本体19に、短円筒形第１切断部材241が摺
動自在に嵌合され、その第１切断部材241と前記ガイド
部材23とが、摺動孔22の底壁25を貫通する４本のガイド
ピン26を介して連結される。The body 19 of the punch 18, the first cutting member 24 1 short cylindrical is slidably fitted, and the guide member 23 and the first cutting member 24 1 thereof, through the bottom wall 25 of the slide hole 22 Are connected via four guide pins 26.
摺動孔22の上壁27に貫通孔28が形成され、その貫通孔
28を通して昇降板16下面とガイド部材23上面との間にば
ね29が縮設される。したがって、上部加工ブロック151
の上昇時には、ばね29の弾発力でガイド部材23が底壁25
に押圧されて、ポンチホルダ17下面と第１切断部材241
上面との間には所定の間隔ｄが形成され、また第１切断
部材241の下端面はポンチ18の下端面と略同一平面上に
在る。A through hole 28 is formed in the upper wall 27 of the sliding hole 22, and the through hole 28
A spring 29 is contracted between the lower surface of the elevating plate 16 and the upper surface of the guide member 23 through 28. Therefore, the upper working block 15 1
Is raised, the guide member 23 is moved by the elastic force of the spring 29 to the bottom wall 25.
, The lower surface of the punch holder 17 and the first cutting member 24 1
Between the upper surface a predetermined distance d is formed, also the lower end surface of the first cutting member 24 1 is located on the lower end face substantially flush with the punch 18.
第１切断部材241は上側の大径部30と下側の小径部31
とよりなり、その小径部31の下端外周部に、半径方向外
方および下方に開口するように複数の切欠き溝32が形成
される。各切欠き溝32は、ブロックリング８の相隣る両
歯部11間の各谷部33に対応し、また相隣る両切欠き溝32
間の各ランド部34は、ブロックリング８の各歯部11に対
応する。The first cutting member 24 1 has an upper large-diameter portion 30 and a lower small-diameter portion 31.
A plurality of notch grooves 32 are formed in the outer periphery of the lower end of the small diameter portion 31 so as to open outward and downward in the radial direction. Each notch groove 32 corresponds to each valley portion 33 between both adjacent tooth portions 11 of the block ring 8, and each adjacent notch groove 32
Each land portion 34 between them corresponds to each tooth portion 11 of the block ring 8.
各切欠き溝32のコ字形をなす下端開口縁は切断刃35と
して機能する。The U-shaped lower end opening edge of each notch groove 32 functions as a cutting blade 35.
下部加工ブロック152は次のように構成される。Lower processing block 15 2 is constructed as follows.
即ち、基台36上に存する固定板37の上面に、ダイス38
が固定され、そのダイス38は短円筒形外筒体39と、外筒
体39の内側に存する受け台40とより構成される。That is, the die 38 is provided on the upper surface of the fixing plate 37 on the base 36.
The die 38 is composed of a short cylindrical outer cylinder 39 and a cradle 40 located inside the outer cylinder 39.
外筒体39は、上側の大径孔41と、下側の小径孔42とを
有し、その小径孔42に受け台40が摺動自在に嵌合され、
また大径孔41に第１切断部材241の小径部31が嵌合し得
るようになっている。The outer cylindrical body 39 has an upper large-diameter hole 41 and a lower small-diameter hole 42, and the receiving table 40 is slidably fitted in the small-diameter hole 42,
Also so that the small diameter portion 31 of the first cutting member 24 1 to the large-diameter hole 41 can fit.
第７図にも示すように、大径孔41および小径孔42間の
環状段付部43に、半径方向内方および上方に開口するよ
うに複数の切欠き溝44が形成される。各切欠き溝44は第
１切断部材241の各ランド部34と嵌合し、また相隣る両
切欠き溝44間の各ランド部45は第１切断部材241の各切
欠き溝32と嵌合し得るようになっている。As shown in FIG. 7, a plurality of notches 44 are formed in the annular stepped portion 43 between the large-diameter hole 41 and the small-diameter hole 42 so as to open radially inward and upward. Each notched groove 44 first cutting member 24 first engages the respective land portions 34, also phase Tonariru each land portion 45 between both the notched groove 44 is first cutting member 24 1 of the groove 32-out each notch Can be fitted.
各ランド部45のコ字形をなす上端縁は切断刃46として
機能し、したがって各切欠き溝44および各ランド部45は
第２切断部材242を構成する。また第１切断部材241の各
ランド部34および第２切断部材242の各切欠き溝44は互
に協働して各歯部成形用キャビティを画成する。Upper edge forming a C-shape of each land portion 45 functions as a cutting blade 46, so that each notched groove 44 and the land portions 45 constituting the second cutting member 24 2. The first cutting member 24 each notched groove 44 of the land portion 34 and the second cutting member 24 2 1 defines a mutually cooperate with each tooth molding cavity.
各ランド部45の内端は段付部43の内周縁よりも半径方
向外方に位置し、また外端は大径孔41の内周面に連設さ
れている。The inner end of each land portion 45 is located radially outward of the inner peripheral edge of the stepped portion 43, and the outer end is connected to the inner peripheral surface of the large-diameter hole 41.
受け台40の上面は、平坦な外周環状面47と、外周環状
面47に囲繞される凹面48とよりなる。凹面48は、ポンチ
18の加工部20下端と嵌合することによりストッパとして
機能し、また外周環状面47は加工部20のテーパ面21、小
径孔42内周面および第１切断部材241下端面と協働し
て、短筒体成形用キャビティを画成する。The upper surface of the cradle 40 includes a flat outer peripheral annular surface 47 and a concave surface 48 surrounded by the outer peripheral annular surface 47. The concave surface 48 is a punch
Functions as a stopper by processing unit 20 lower end fitting 18, also the outer peripheral annular surface 47 cooperates with the tapered surface 21, within the small-diameter hole 42 periphery and the first cutting member 24 1 lower end surface of the processing member 20 Thus, a cavity for molding a short cylinder is defined.
基台36および固定板37に摺動孔49が一連に形成され、
その摺動孔49に、受け台40に連結されたノックアウトピ
ン50が摺動自在に嵌合される。Sliding holes 49 are formed in a series on the base 36 and the fixing plate 37,
A knockout pin 50 connected to the cradle 40 is slidably fitted in the sliding hole 49.
次に、前記製造位置14によるブロックリング８の製造
方法について説明する。Next, a method of manufacturing the block ring 8 at the manufacturing position 14 will be described.
第８図に示すように、金属板に打抜き加工を施して環
状素材Ｂを得る。この場合、環状素材Ｂの外径は、ダイ
ス38の大径孔41の内径と略等しく、また幅は、ブロック
リング８の歯部11の丈および短筒体10の長さに応じて決
められる。As shown in FIG. 8, a blank is obtained by punching a metal plate. In this case, the outer diameter of the annular material B is substantially equal to the inner diameter of the large-diameter hole 41 of the die 38, and the width is determined according to the length of the teeth 11 of the block ring 8 and the length of the short cylinder 10. .
第９図（ａ），（ｂ）に示すように、常温状態の環状
素材Ｂをダイス38の大径孔41に嵌合して、その外周部を
各ランド部45上面に載置する。この場合、環状素材Ｂの
内周部はダイス38の凹面48上面に張出している。As shown in FIGS. 9 (a) and 9 (b), the annular blank B at normal temperature is fitted into the large-diameter hole 41 of the die 38, and the outer periphery thereof is placed on the upper surface of each land 45. In this case, the inner peripheral portion of the annular material B protrudes from the upper surface of the concave surface 48 of the die 38.
第10図（ａ），（ｂ）に示すように、上部加工ブロッ
ク151を下降すると、第１切断部材241の下端面が環状素
材Ｂの外周部に当接して、その外周部を第２切断部材24
2の各ランド部45との間に挾着する。Figure 10 (a), (b), the the lowered upper machining block 15 1, the lower end surface of the first cutting member 24 1 is in contact with the outer peripheral portion of the annular material B, and its outer peripheral portion a 2 cutting members 24
2 between each land 45.
第11図に示すように、第１切断部材241のそれ以上の
下降は各ランド部45により妨げられるので、ポンチ18が
第１切断部材241に対し摺動しながら下降して環状素材
Ｂの内周部を下方へ折曲げる。As shown in FIG. 11, the more descent of the first cutting member 24 1 is prevented by the respective land portions 45, annular material punch 18 is lowered while sliding relative to the first cutting member 24 1 B Bend the inner circumference of the bottom downward.
第12図に示すように、ポンチ18の下端面が受け台40の
外周環状面47を通過したときには環状素材Ｂより短筒体
10に対応する筒部b1が成形されると共に筒部b1の上面部
外周面にフランジ部b2が成形される。As shown in FIG. 12, when the lower end surface of the punch 18 has passed through the outer peripheral annular surface 47 of the cradle 40,
Cylindrical portion b 1 corresponding to 10 flange portion b 2 is formed on the upper surface outer peripheral surface of the cylindrical portion b 1 while being molded.
第13図（ａ），（ｂ）に示すように、ポンチホルダ17
の下端面が第１切断部材241の上端面に当接することに
より第１切断部材241が押下げられ、その各切断刃35と
第２切断部材242の各切断刃46との協働によりフランジ
部b2に剪断加工が施されて、複数の歯部11に対応する複
数の歯形部b3が形成される。As shown in FIGS. 13 (a) and 13 (b), the punch holder 17
The lower end surface the first cutting member 24 1 is pushed down by contacting the first upper end surface of the cutting member 24 1, each cutting blade 35 and the second cutting member 24 2 of the cutting blade 46 Collaboration with shearing the flange portion b 2 is applied by a plurality of teeth portions b 3 corresponding to the plurality of teeth 11 are formed.
そして、第１切断部材241の各ランド部34が第２切断
部材242の各切欠き溝44に嵌合し、また第２切断部材242
の各ランド部45が第１切断部材241の各切欠き溝32に嵌
合するので、各歯形部b3は第２切断部材242の各切欠き
溝44に押込まれ、一方、相隣る両歯形部b3間に生じたス
クラップｓは第１切断部材241の切欠き溝32に収容され
る。The first respective land portions 34 of the cutting member 24 1 is fitted into the second cutting each notched groove 44 of the member 24 2, and the second cutting member 24 2
Each land portion 45 of fitting to the first cutting member 24 1 of the notched groove 32, the toothed portion b 3 is pushed into the notched groove 44 of the second cutting member 24 2, whereas, Neighboring that scrap s that occurred between the two toothing b 3 is accommodated in the first cutting member 24 1 of the notched groove 32.
第14図（ａ），（ｂ）に示すように、引続く上部加工
ブロック151の下降によりポンチ18が受け台40の凹面48
に嵌合して、そのブロック151の下降が停止する。その
停止するまでの間に、ポンチ18のテーパ面21と、ダイス
38の小径孔42内周面、外周環状面47、第１切断部材241
の下端面の協働により短筒体成形用キャビティc1が画成
され、そのキャビティc1内で筒部b1に圧縮加工が施され
るので、短筒体10が成形される。同時に、第１切断部材
241の各ランド部34および第２切断部材242の各切欠き溝
44の協働により各歯部成形用キャビティc2が画成され、
そのキャビティc2内で各歯形部b3に圧縮加工が施される
ので、各歯部11が成形される。FIG. 14 (a), (b), the concave surface 48 of the punch 18 is receiving stand 40 by lowering the subsequent upper machining block 15 1
Fitted to, the descent stops the block 15 1. Until the stop, the taper surface 21 of the punch 18 and the die
38 small diameter hole 42 inner peripheral surface, outer peripheral annular surface 47, first cutting member 24 1
Made short tube bodies forming cavities c 1 is fractionated by cooperation of the lower end surface of the compression process to the cylinder portion b 1 is performed in the inside cavity c 1, the short cylindrical body 10 is molded. At the same time, the first cutting member
24 1 of the notched groove of the land portion 34 and the second cutting member 24 2
With the cooperation of 44, each tooth molding cavity c 2 is defined,
Since the compression process in the toothing b 3 in the cavity c 2 is performed, the tooth portion 11 is molded.
C.発明の効果 本発明によれば、環状素材に１回の塑性加工を施すこ
とによってブロックリングを得ることができ、これによ
りブロックリングの量産性を向上させて、その製造コス
トを低減することができる。また実施設備面において
も、製造工程の簡素化に伴い製造装置を小型化し得ると
いった利点もある。C. Effects of the Invention According to the present invention, it is possible to obtain a block ring by performing a single plastic working on an annular material, thereby improving the mass productivity of the block ring and reducing its manufacturing cost. Can be. In addition, in terms of implementation facilities, there is an advantage that the manufacturing apparatus can be reduced in size as the manufacturing process is simplified.
第１図は同期噛合い式変速機の要部破断部分側面図、第
２図はブロックリングの平面図、第３図は第２図III−I
II線断面図、第４図はブロックリングの斜視図、第５図
はブロックリング製造装置の縦断正面図、第6,第７図は
第５図VI−VI、VII−VII矢視図、第８図は環状素材の斜
視図、第９〜第14図はブロックリングの製造工程説明図
である。 Ｂ……環状素材、b1……筒部、b2……フランジ部、b3…
…歯形部、c1……短筒体成形用キャビティ、c2……歯部
成形用キャビティ、２……駆動ギヤ（変速ギヤ）、７…
…コーン、８……ブロックリング、９……テーパ孔、10
……短筒体、11……歯部、18……ポンチ、241,242……
第1,第２切断部材、38……ダイス1 is a cutaway side view of a main part of a synchronous mesh type transmission, FIG. 2 is a plan view of a block ring, and FIG. 3 is FIG.
FIG. 4 is a perspective view of the block ring, FIG. 5 is a vertical sectional front view of the block ring manufacturing apparatus, and FIGS. 6 and 7 are views taken along arrows VI-VI and VII-VII in FIGS. FIG. 8 is a perspective view of the annular material, and FIGS. 9 to 14 are diagrams for explaining the manufacturing process of the block ring. B: annular material, b 1 … tubular part, b 2 … flange part, b 3 …
… Tooth profile, c 1 … cavity for molding a short cylinder, c 2 … cavity for molding a tooth, 2… drive gear (transmission gear), 7…
... cone, 8 ... block ring, 9 ... tapered hole, 10
…… Short cylinder, 11… Tooth, 18… Punch, 24 1 , 24 2 ……
First and second cutting members, 38 dies
フロントページの続き (58)調査した分野(Int.Cl.6，ＤＢ名) B21K 1/30Continuation of front page (58) Field surveyed (Int.Cl. 6 , DB name) B21K 1/30
Claims (1)
えた短筒体と、該短筒体の一端部外周面に突設された複
数の歯部とよりなる同期噛合い式変速機用ブロックリン
グを製造するに当り、金属製環状素材の外周部を、ポン
チに設けられた第１切断部材とダイスに設けられた第２
切断部材とにより挾着した状態にて、前記金属製素材の
内周部に前記ポンチにより曲げ加工を施して前記短筒体
に対応する筒部を成形すると共に該筒部の一端部外周面
にフランジ部を成形し、次いで前記フランジ部に、前記
第１切断部材と第２切断部材との協働により剪断加工を
施して前記複数の歯部に対応する複数の歯形部を形成
し、その後前記筒部に、前記ポンチ、ダイスおよび第１
切断部材の協働で画成された短筒体成形用キャビティ内
で、また各歯形部に、前記第１および第２切断部材の協
働で画成された各歯部成形用キャビティ内でそれぞれ圧
縮加工を施して前記短筒体および各歯部を成形すること
を特徴とする同期噛合い式変速機用ブロックリングの製
造方法。1. A synchronous mesh type transmission comprising: a short cylinder having a tapered hole surrounding a cone of a transmission gear; and a plurality of teeth projecting from an outer peripheral surface of one end of the short cylinder. In manufacturing the block ring, the outer peripheral portion of the metal annular material is separated from the first cutting member provided on the punch and the second cutting member provided on the die.
In the state of being clamped by the cutting member, the inner peripheral portion of the metal material is bent by the punch to form a tubular portion corresponding to the short tubular body, and an outer peripheral surface of one end portion of the tubular portion is formed. Forming a flange portion, and then performing a shearing process on the flange portion in cooperation with the first cutting member and the second cutting member to form a plurality of tooth profiles corresponding to the plurality of tooth portions; The punch, the die and the first
In the short cylinder molding cavity defined by the cooperation of the cutting member, and in each tooth profile, in each tooth molding cavity defined by the cooperation of the first and second cutting members, respectively. A method of manufacturing a block ring for a synchronous mesh transmission, wherein the short cylinder and each tooth portion are formed by performing compression processing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23232789A JP2782364B2 (en) | 1989-09-07 | 1989-09-07 | Method of manufacturing block ring for synchronous mesh transmission |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP23232789A JP2782364B2 (en) | 1989-09-07 | 1989-09-07 | Method of manufacturing block ring for synchronous mesh transmission |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0394949A JPH0394949A (en) | 1991-04-19 |
| JP2782364B2 true JP2782364B2 (en) | 1998-07-30 |
Family
ID=16937458
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP23232789A Expired - Lifetime JP2782364B2 (en) | 1989-09-07 | 1989-09-07 | Method of manufacturing block ring for synchronous mesh transmission |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2782364B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2826464B2 (en) * | 1994-03-18 | 1998-11-18 | 大同特殊鋼株式会社 | Forging method and forging device for crown-shaped parts |
| CH690565A5 (en) * | 1995-04-10 | 2000-10-31 | Feinstanz Ag | A process for producing gear components with teeth with a roof shape and an undercut. |
| JP5300275B2 (en) | 2008-01-25 | 2013-09-25 | キヤノン株式会社 | Method for manufacturing metal member having a plurality of protrusions |
-
1989
- 1989-09-07 JP JP23232789A patent/JP2782364B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0394949A (en) | 1991-04-19 |
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