JPH0225963Y2 - - Google Patents
Info
- Publication number
- JPH0225963Y2 JPH0225963Y2 JP14774784U JP14774784U JPH0225963Y2 JP H0225963 Y2 JPH0225963 Y2 JP H0225963Y2 JP 14774784 U JP14774784 U JP 14774784U JP 14774784 U JP14774784 U JP 14774784U JP H0225963 Y2 JPH0225963 Y2 JP H0225963Y2
- Authority
- JP
- Japan
- Prior art keywords
- pulley half
- cylindrical member
- cylindrical
- circumferential groove
- welding
- 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
- 238000003466 welding Methods 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 7
- 238000004804 winding Methods 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 239000012141 concentrate Substances 0.000 description 2
- 238000005336 cracking Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
Landscapes
- Pulleys (AREA)
- Transmissions By Endless Flexible Members (AREA)
Description
【考案の詳細な説明】
本考案は変速プーリ装置にり、特に自動二輪
車、自動三輪車等のベルト式自動変速機の変速プ
ーリ装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a speed change pulley device, and particularly to a speed change pulley device for belt type automatic transmissions such as motorcycles and tricycles.
例えば第２図に示す変速プーリ装置１は、駆動
装置の固定プーリ半体と可動プーリ半体とから構
成される変速プーリ装置（図示せず）との間に張
架されたベルト２により駆動力を受ける被駆動装
置３を構成するもので、被動軸４に軸受５，５を
介して第１の円筒部材６を設け、その第１の円筒
部材６の端部外周面（図において右端）に、円錐
形状のベルト摺動部７と第１の円筒部材６に挿入
される円筒部８とを一体に形成したプーリ半体９
を挿入して、その第１の円筒部材６とプーリ半体
９の円筒部８との端部１０で溶接した固定プーリ
半体１１と、前記第１の円筒部材６の外周面に、
軸方向に摺動する第２の円筒部材１２を挿入し、
その第２の円筒部材１２の固定プーリ半体側の端
部外周面に、円錐形状のベルト摺動部１３と第２
の円筒部材１２に挿入される円筒部１４とを一体
に形成したプーリ半体１５を挿入して、その第２
の円筒部材１２とプーリ半体１５の円筒部１４と
の端部１６で溶接した可動プーリ半体１７とから
なる。前記可動プーリ半体１７と第１の円筒部材
６のもう一方の端部（図において左端）に設けた
駆動プレート１８間にはスプリング１９が縮装さ
れ、そのスプリング１９により可動プーリ半体１
７を固定プーリ半体１１側へ押圧して、プーリ径
を拡大する側へ押圧している。そして前記第１の
円筒部材６の円周上数箇所にはガイドピン２０が
圧入され、各ガイドピン２０の突出部に回動自在
に嵌装されたガイドローラ２１は第２の円筒部材
１２に形成された軸方向の長孔に係合しており、
このガイドピン２０のガイドローラ２１を介して
可動プーリ半体１７は軸方向の移動が可能とな
る。そして前記駆動プレート１８には遠心クラツ
チ２２が取付けられ、その遠心クラツチ２２のク
ラツチシユー２３に対向する如くドラム部２４が
被動軸４の端部に固定されている。 For example, a speed change pulley device 1 shown in FIG. 2 is driven by a belt 2 stretched between a speed change pulley device (not shown) consisting of a fixed pulley half and a movable pulley half of a drive device. A first cylindrical member 6 is provided on the driven shaft 4 via bearings 5, 5, and the outer peripheral surface of the end of the first cylindrical member 6 (the right end in the figure) is , a pulley half 9 in which a conical belt sliding part 7 and a cylindrical part 8 inserted into the first cylindrical member 6 are integrally formed.
is inserted into the fixed pulley half 11 welded at the end 10 of the first cylindrical member 6 and the cylindrical portion 8 of the pulley half 9, and on the outer peripheral surface of the first cylindrical member 6,
inserting a second cylindrical member 12 that slides in the axial direction;
The second cylindrical member 12 has a conical belt sliding portion 13 and a second
A pulley half 15 integrally formed with the cylindrical part 14 inserted into the cylindrical member 12 is inserted, and the second
The movable pulley half 17 is made up of a cylindrical member 12 and a cylindrical portion 14 of a pulley half 15 welded at an end 16. A spring 19 is compressed between the movable pulley half 17 and a drive plate 18 provided at the other end (left end in the figure) of the first cylindrical member 6, and the spring 19 causes the movable pulley half 1 to
7 is pressed toward the fixed pulley half 11 side, and is pressed toward the side that enlarges the pulley diameter. Guide pins 20 are press-fitted into several positions on the circumference of the first cylindrical member 6, and guide rollers 21 rotatably fitted into the protruding portions of each guide pin 20 are attached to the second cylindrical member 12. It engages with the formed long hole in the axial direction,
The movable pulley half 17 can be moved in the axial direction via the guide roller 21 of the guide pin 20. A centrifugal clutch 22 is attached to the drive plate 18, and a drum portion 24 is fixed to the end of the driven shaft 4 so as to face a clutch 23 of the centrifugal clutch 22.
駆動装置が低回転時には駆動動装置の変速プー
リ装置（図示せず）のベルトの巻掛径が小さく、
被駆動装置の変速プーリ装置のベルトの巻掛径は
大きく保持され、被動軸４の回転は減速され、回
転トルクは増幅される。駆動装置の回転が徐々に
上がつてくると、駆動装置の変速プーリ装置のベ
ルト巻掛径は拡大し、これによりベルト２は被駆
動装置の変速プーリ装置１の固定プーリ半体１１
と可動プーリ半体１７の半径方向へ喰い込む。こ
れにともなつて、可動プーリ半体１７はスプリン
グ１９の弾発力に抗して移動（図中左へ）し変速
プーリ装置１の巻掛径は縮小し、被動軸４の回転
は増速される。遠心クラツチ２２は回転数に応じ
て第１の円筒部材６と被動軸４との回転伝達を断
続する。 When the drive unit rotates at low speed, the winding diameter of the belt of the speed change pulley device (not shown) of the drive unit is small.
The winding diameter of the belt of the speed change pulley device of the driven device is kept large, the rotation of the driven shaft 4 is decelerated, and the rotational torque is amplified. As the rotation of the drive device gradually increases, the belt winding diameter of the speed change pulley device of the drive device increases, so that the belt 2 is attached to the fixed pulley half 11 of the speed change pulley device 1 of the driven device.
and bites into the movable pulley half 17 in the radial direction. Along with this, the movable pulley half 17 moves against the elastic force of the spring 19 (toward the left in the figure), the winding diameter of the speed change pulley device 1 decreases, and the rotation of the driven shaft 4 increases. be done. The centrifugal clutch 22 connects and disconnects rotational transmission between the first cylindrical member 6 and the driven shaft 4 depending on the rotational speed.
このような変速プーリ装置の固定プーリ半体と
可動プーリ半体とは、一般的に第１の円筒部材、
第２の円筒部材の端部外周面に挿入して、その端
部を溶接したものである。 The fixed pulley half and the movable pulley half of such a variable speed pulley device generally include a first cylindrical member,
It is inserted into the outer peripheral surface of the end of the second cylindrical member, and the end is welded.
このため、溶接部分の溶接硬化部近傍が組織上
脆い状態となつているので、ベルトによつてプー
リ半体の円錐形状のベルト摺動部に外側へ押し拡
げようとする力が繰り返し作用すると、溶接部分
が支点となつて溶接硬化部近傍に応力が集中して
割れやすくなる。又、強度を増すためにプーリ半
体の肉厚を厚くすると、プーリ半体の重量が重く
なる。という問題点があつた。 For this reason, the area near the hardened part of the welded part is structurally fragile, so if the belt repeatedly applies force to push the conical belt sliding part of the pulley half outward, The welded part acts as a fulcrum and stress concentrates near the hardened welded part, making it more likely to crack. Furthermore, if the wall thickness of the pulley half is increased to increase the strength, the weight of the pulley half becomes heavier. There was a problem.
本考案はこれらの点に鑑みなされたもので、そ
の目的は、プーリ半体の肉厚を厚くさせることな
く、固定プーリ半体と可動プーリ半体との溶接部
分の強度を向上させることにある。 The present invention was developed in view of these points, and its purpose is to improve the strength of the welded part between the fixed pulley half and the movable pulley half without increasing the wall thickness of the pulley half. .
本考案の実施例を図面に基づいて説明する。 Embodiments of the present invention will be described based on the drawings.
第１図はベルト式自動変速機の変速プーリ装置
を示したものである。被動軸２５に軸受２６と軸
受２７とを介して第１の円筒部材２８を設け、そ
の第１の円筒部材２８の端部外周（図において右
端）に鍔部２９を形成し、その鍔部２９の端面に
嵌合周溝３０を形成してその周溝３０に、円錐形
状のベルト摺動部３１と第１の円筒部材２８に挿
入される円筒部３２とを薄肉板によつて一体にプ
レス成形したプーリ半体３３の円筒部３２を挿入
嵌合し、前記鍔部２９の外周面３５に前記嵌合周
溝３０に僅かな薄肉を存して近接する溶接周溝３
４を設け、その溶接周溝３４において第１の円筒
部材２８の鍔部２９とプーリ半体３３の円筒部３
２とを溶接した固定プーリ半体３６と、前記第１
の円筒部材２８の外周面に、軸方向に摺動する第
２の円筒部材３７を挿入し、その第２の円筒部材
３７の固定プーリ半体３６側の端部外周（図にお
いて右端）に鍔部３８を形成し、その鍔部３８の
端面に嵌合周溝３９を形成してその周溝３９に、
円錐形状のベルト摺動部４０と第２の円筒部材３
７に挿入される円筒部４１とを薄肉板によつて一
体にプレス成形したプーリ半体４２の円筒部４１
を挿入嵌合し、前記鍔部３８の外周面４３に前記
嵌合周溝３９に僅かな薄肉を存して近接する溶接
周溝４４を設け、その溶接周溝４４において第２
の円筒部材３７の鍔部３８とプーリ半体４２の円
筒部４１とを溶接した可動プーリ半体４５とから
構成した変速プーリ装置４６である。これ以外の
構成、第２図に示す従来例の装置と同様である。 FIG. 1 shows a speed change pulley device for a belt type automatic transmission. A first cylindrical member 28 is provided on the driven shaft 25 via a bearing 26 and a bearing 27, and a flange 29 is formed on the outer periphery of the end (right end in the figure) of the first cylindrical member 28. A fitting circumferential groove 30 is formed in the end face of the conical belt sliding portion 31 and a cylindrical portion 32 to be inserted into the first cylindrical member 28 are pressed together into the circumferential groove 30 using a thin plate. The cylindrical portion 32 of the molded pulley half 33 is inserted and fitted, and a welded circumferential groove 3 is formed in the outer circumferential surface 35 of the collar portion 29 adjacent to the fitting circumferential groove 30 with a slight thin wall.
4, and the flange 29 of the first cylindrical member 28 and the cylindrical portion 3 of the pulley half 33 are provided in the weld circumferential groove 34.
2 and a fixed pulley half 36 welded together with the first
A second cylindrical member 37 that slides in the axial direction is inserted into the outer peripheral surface of the cylindrical member 28, and a flange is attached to the outer periphery of the end of the second cylindrical member 37 on the fixed pulley half 36 side (the right end in the figure). A fitting circumferential groove 39 is formed in the end face of the collar portion 38, and a fitting circumferential groove 39 is formed in the circumferential groove 39.
Conical belt sliding part 40 and second cylindrical member 3
The cylindrical portion 41 of the pulley half body 42 is integrally press-molded with the cylindrical portion 41 inserted into the cylindrical portion 7 using a thin plate.
A welding circumferential groove 44 is provided on the outer peripheral surface 43 of the flange portion 38 adjacent to the fitting circumferential groove 39 with a slight thin wall, and a second welding circumferential groove 44 is provided in the welding circumferential groove 44.
A variable speed pulley device 46 is constructed from a movable pulley half 45 in which a collar portion 38 of a cylindrical member 37 and a cylindrical portion 41 of a pulley half 42 are welded together. The configuration other than this is the same as the conventional device shown in FIG.
尚、プーリ半体の溶接は、熱影響範囲を狭めて
溶接硬化部を小範囲にしつつ深く溶接することが
できるプラズマ溶接、レーザー溶接などが好まし
い。 The pulley halves are preferably welded by plasma welding, laser welding, or the like, which can narrow the heat-affected area and make deep welding possible while making the weld hardened area small.
以上の如く、本考案は第１の円筒部材と第２の
円筒部材との端部に鍔部を形成し、その鍔部の端
面に嵌合周溝を形成してその周溝にプーリ半体の
円筒部を嵌合し、前記鍔部の外周面に前記嵌合周
溝に僅かな薄肉を存して近接する溶接周溝を設
け、その溶接周溝において前記鍔部と前記プーリ
半体の円筒部とを溶接したことから、固定プーリ
半体と可動プーリ半体との溶接部分の溶接硬化部
近傍の組織上脆い状態の部分を嵌合周溝によつて
しつかりと保持するのでプーリ半体の円錐形状の
ベルト摺動部に外側へ押し拡げようとする力が繰
り返し作用しても、溶接部分が支点となつて溶接
硬化部近傍に応力を集中させることがなく、プー
リ半体の円筒部の溶接部分の溶接硬化部近傍から
の割れが防げ、固定プーリ半体と可動プーリ半体
との溶接部分の強度を向上させることができる。
又、プーリ半体の肉厚を薄くしても、前記嵌合周
溝による保持と、溶接による固定とで充分な強度
を得ることができるので、プーリ半体の重量を軽
減することができる。 As described above, the present invention forms flanges at the ends of a first cylindrical member and a second cylindrical member, forms a fitting circumferential groove on the end face of the flanges, and inserts a pulley half into the circumferential groove. A cylindrical portion is fitted into the cylindrical portion, and a welding circumferential groove is provided on the outer circumferential surface of the flange portion adjacent to the fitting circumferential groove with a slight thin wall, and in the welding circumferential groove, the flange portion and the pulley half are connected to each other. Since the cylindrical parts are welded together, the welded part between the fixed pulley half and the movable pulley half, which is structurally fragile near the weld hardened part, is firmly held by the fitting circumferential groove. Even if force is repeatedly applied to the conical belt sliding part of the belt to push it outward, the welded part acts as a fulcrum and stress does not concentrate near the hardened welded part, and the cylindrical part of the pulley half It is possible to prevent cracking from near the hardened welding part of the welded part of the part, and improve the strength of the welded part between the fixed pulley half and the movable pulley half.
Further, even if the wall thickness of the pulley half is made thin, sufficient strength can be obtained by the holding by the fitting circumferential groove and the fixing by welding, so that the weight of the pulley half can be reduced.
第１図は本考案の実施例を示す断面図、第２図
は従来例を示す断面図である。
符号の説明、２８……第１の円筒部材、２９…
…鍔部、３０……嵌合周溝、３３……プーリ半
体、３４……溶接周溝、３５……鍔部の外周面、
３６……固定プーリ半体、３７……第２の円筒部
材、３８……鍔部、３９……嵌合周溝、４４……
溶接周溝、４５……可動プーリ半体、４６……変
速プーリ装置。
FIG. 1 is a sectional view showing an embodiment of the present invention, and FIG. 2 is a sectional view showing a conventional example. Explanation of symbols, 28... First cylindrical member, 29...
... Flange, 30... Fitting circumferential groove, 33... Pulley half, 34... Welding circumferential groove, 35... Outer circumferential surface of collar,
36... Fixed pulley half, 37... Second cylindrical member, 38... Flange, 39... Fitting circumferential groove, 44...
Welding circumferential groove, 45...movable pulley half, 46... variable speed pulley device.
Claims (1)
ルト摺動部と第１の円筒部材に挿入される円筒部
とを一体に形成したプーリ半体を挿入して、その
第１の円筒部材とプーリ半体の円筒部との端部で
溶接した固定プーリ半体と、前記第１の円筒部材
の外周面に、軸方向に摺動する第２の円筒部材を
挿入し、その第２の円筒部材の固定プーリ半体側
の端部外周面に、円錐形状のベルト摺動部と第２
の円筒部材に挿入される円筒部とを一体に形成し
たプーリ半体を挿入して、その第２の円筒部材と
プーリ半体の円筒部との端部で溶接した可動プー
リ半体とからなる変速プーリ装置において、前記
第１の円筒部材と前記第２の円筒部材との端部に
鍔部を形成し、その鍔部の端面に嵌合周溝を形成
してその周溝にプーリ半体の前記円筒部を嵌合
し、前記鍔部の外周面に前記嵌合周溝に僅かな薄
肉を存して近接する溶接周溝を設け、その溶接周
溝において前記鍔部と前記プーリ半体の円筒部と
を溶接したことを特徴とする変速プーリ装置。 A pulley half integrally formed with a conical belt sliding part and a cylindrical part to be inserted into the first cylindrical member is inserted into the outer peripheral surface of the end of the first cylindrical member, and the first cylindrical member is A second cylindrical member that slides in the axial direction is inserted into the outer peripheral surface of the fixed pulley half welded at the ends of the member and the cylindrical part of the pulley half, and the first cylindrical member, and the second A conical belt sliding part and a second
A movable pulley half is formed by inserting a pulley half integrally formed with a cylindrical part inserted into a cylindrical member, and welding the end of the second cylindrical member and the cylindrical part of the pulley half. In the variable speed pulley device, a flange is formed at the end of the first cylindrical member and the second cylindrical member, a fitting circumferential groove is formed on the end surface of the flange, and the pulley half is inserted into the circumferential groove. A welding circumferential groove is provided on the outer circumferential surface of the flange portion adjacent to the fitting circumferential groove with a slight thin wall, and the flange portion and the pulley half are connected to each other in the welding circumferential groove. A variable speed pulley device characterized in that a cylindrical portion of the cylindrical portion is welded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14774784U JPH0225963Y2 (en) | 1984-09-28 | 1984-09-28 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14774784U JPH0225963Y2 (en) | 1984-09-28 | 1984-09-28 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6161364U JPS6161364U (en) | 1986-04-25 |
| JPH0225963Y2 true JPH0225963Y2 (en) | 1990-07-16 |
Family
ID=30705974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14774784U Expired JPH0225963Y2 (en) | 1984-09-28 | 1984-09-28 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0225963Y2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4604059B2 (en) * | 2007-01-10 | 2010-12-22 | 株式会社エフ・シー・シー | Driving force transmission pulley and method of manufacturing the same |
| JP5090844B2 (en) * | 2007-10-12 | 2012-12-05 | 株式会社エフ・シー・シー | Manufacturing method of driving force transmission pulley |
| JP5268746B2 (en) * | 2009-03-31 | 2013-08-21 | 本田技研工業株式会社 | Pulley structure of V-belt continuously variable transmission |
-
1984
- 1984-09-28 JP JP14774784U patent/JPH0225963Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6161364U (en) | 1986-04-25 |
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