JPS6239301B2 - - Google Patents

Info

Publication number
JPS6239301B2
JPS6239301B2 JP3747883A JP3747883A JPS6239301B2 JP S6239301 B2 JPS6239301 B2 JP S6239301B2 JP 3747883 A JP3747883 A JP 3747883A JP 3747883 A JP3747883 A JP 3747883A JP S6239301 B2 JPS6239301 B2 JP S6239301B2
Authority
JP
Japan
Prior art keywords
gear
supported
shaft
idle gear
idle
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
Application number
JP3747883A
Other languages
Japanese (ja)
Other versions
JPS59164452A (en
Inventor
Hiroshi Kawasaki
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Priority to JP3747883A priority Critical patent/JPS59164452A/en
Publication of JPS59164452A publication Critical patent/JPS59164452A/en
Publication of JPS6239301B2 publication Critical patent/JPS6239301B2/ja
Granted legal-status Critical Current

Links

Description

【発明の詳細な説明】 本発明は、主としてサイドカー付自動2輪車の
変速機に後進ギア列を組込む場合に適用されるア
イドルギアの支持装置に関する。
DETAILED DESCRIPTION OF THE INVENTION The present invention relates to an idle gear support device mainly applied when a reverse gear train is incorporated into a transmission of a two-wheeled motor vehicle with a sidecar.

従来の自動2輪車用変速機は、エンジンのクラ
ンクケースと一体に形成される変速用ギアケース
内に、該ケースを構成する一側の半部と他側の半
部との割面に軸支される駆動部と、該一側の半部
に軸支される従動軸とを設け、該両軸間に前進用
の複数をギア列を配置する一般としたもので、該
両軸間に中間のアイドルギアを有する後進ギア列
を組込む場合、一般には該従動軸を軸支する該一
側の半部の軸方向両側の軸支壁にアイドルギアの
支軸を挿通支持させることが考えられるが、これ
によればメンテナンス時の該従動軸の取外しに際
しアイドルギアをその支軸と共に該一側の半部か
ら取外す必要があつてその作業が面倒となる不都
合を伴う。
Conventional motorcycle transmissions have a transmission gear case that is formed integrally with the crankcase of the engine, and a shaft that is located between one half and the other half of the case. Generally, a driving part supported by the drive part and a driven shaft supported by the one half of the one side are provided, and a plurality of gear trains for forward movement are arranged between the two shafts. When incorporating a reverse gear train having an intermediate idle gear, it is generally considered that the support shaft of the idle gear is inserted through and supported by the shaft support walls on both axial sides of the one half that pivotally supports the driven shaft. However, according to this method, when the driven shaft is removed during maintenance, it is necessary to remove the idle gear together with its supporting shaft from the one half, which is troublesome.

かかる不都合を解消すべく、アイドルギアを他
側の半部に支持させて、ギアケースの分割により
アイドルギアが該他側の半部と共に取外されるよ
うにすることも考えられるが、この場合アイドル
ギアは割面から駆動軸上の駆動ギアを乗り越えて
一側の半部内に挿脱されるもので、駆動ギアを乗
り越えさせるために該他側の半部を割面と平行な
該駆動軸の径方向に移動させる必要があるが、該
他側の半部は割面に軸支する駆動軸との係合で割
り面と直交する方向に多少とも分離させてからで
ないと当該径方向には移動出来ず、従つてアイド
ルギアはギアケースの分割に際し他側の半部の割
面と直交する方向への動きを許容するように該他
側の半部に支持させる必要がある。
In order to solve this inconvenience, it is possible to support the idle gear on the other half so that the idle gear can be removed together with the other half by splitting the gear case, but in this case. The idle gear is inserted into and removed from one half by climbing over the drive gear on the drive shaft from the split surface, and in order to get over the drive gear, the other half is inserted into the drive shaft parallel to the split surface. It is necessary to move the other half in the radial direction, but the other half must be separated somewhat in the direction perpendicular to the split surface by engagement with the drive shaft that is pivotally supported on the split surface. cannot move, therefore, when the gear case is divided, the idle gear must be supported by the other half so as to allow movement in a direction perpendicular to the dividing surface of the other half.

本発明は、かかる課題を解決したアイドルギア
の支持装置を提供することをその目的としたもの
で、ギアケース内に、該ギアケースを構成する一
側の半部と他側の半部との割面に軸支される軸と
該一側の半部に軸支される軸とを連結する中間の
アイドルギアを有するギア列を収容するものにお
いて、該アイドルギアを該ギアケースとは別体の
ホルダに支持さて、該ホルダを該他側の半部に、
該割面と直交する方向に移動自在に且つ該他側の
半部の外面に備える固定部材で固定自在に支持さ
せたことを特徴とする。
An object of the present invention is to provide an idle gear support device that solves the above problem, and in which a gear case is provided with two halves, one half and the other, of the gear case. In a device that accommodates a gear train having an intermediate idle gear that connects a shaft supported by the split surface and a shaft supported by the one half, the idle gear is separate from the gear case. holder, and then attach the holder to the other half,
It is characterized in that it is movably movable in a direction orthogonal to the split surface and fixedly supported by a fixing member provided on the outer surface of the other half.

次いで本発明を図示の実施例に付説明する。 Next, the present invention will be explained with reference to the illustrated embodiments.

第1図を参照して、1は一側にサイドカー2を
取付けた自動2輪車、3はこれに搭載したエンジ
ンを示し、該エンジン3は横方向両側に各1対の
シリンダ4を有する水平対向型の4気筒エンジン
で構成され、そのクランクケースと一体の下部の
変速用ギアケース5内に第2図乃至第4図に示す
如く前進4段後進1段の変速ギア機構6を組込む
ものとした。
Referring to FIG. 1, reference numeral 1 indicates a two-wheeled motor vehicle with a sidecar 2 attached to one side, and reference numeral 3 indicates an engine mounted thereon. It is composed of an opposed four-cylinder engine, and a transmission gear mechanism 6 with four forward speeds and one reverse speed is incorporated in the lower transmission gear case 5, which is integrated with the crankcase, as shown in FIGS. 2 to 4. did.

これを更に詳述するに、該ギアケース5は第2
図に示す如く横方向中央の略垂直の割面aで分割
される両側の半部5a,5bで構成されるものと
し、該割面aに該両半部5a,5bにより挾持し
て第3図に示す如くクランク軸7にクラツチ8を
介して連結される駆動軸9を前後方向に長手に軸
支すると共に、右側の半部5aに自動2輪車1の
後輪1aに連るプロペラ軸10にフアイナル軸1
1を介して連結される従動軸12を該駆動軸9と
平行に軸支し、該駆動軸9と該従動軸12との間
に第4図に示す如く前進用の1速乃至4速のギア
列G1,G2,G3,G4と、後進ギア列GRと
を組込み、これらを該右側の半部5aに備えるシ
フトドラム13の回動に伴う各シフトフオーク1
4を介して各シフトギア15の摺動で選択的に確
立させるようにした。
To explain this in more detail, the gear case 5 is
As shown in the figure, it is composed of half parts 5a and 5b on both sides divided by a substantially vertical splitting surface a at the center in the lateral direction, and a third As shown in the figure, a drive shaft 9 connected to a crankshaft 7 via a clutch 8 is longitudinally supported in the front-rear direction, and a propeller shaft connected to the rear wheel 1a of the motorcycle 1 is attached to the right half 5a. Final axis 1 on 10
A driven shaft 12 connected through the drive shaft 1 is supported in parallel with the drive shaft 9, and between the drive shaft 9 and the driven shaft 12 are gears for forward speeds 1 to 4, as shown in FIG. Each shift fork 1 incorporates gear trains G1, G2, G3, G4 and a reverse gear train GR, and is equipped with these gear trains in the right half 5a as the shift drum 13 rotates.
4 through the sliding movement of each shift gear 15.

ここで該後進ギア列GRは、該駆動軸9上の駆
動ギア16と該従動軸12上の従動ギア17との
間にアイドルギア18が介在されるもので、この
アイドルギア18の支持装置として本発明を適用
するものとした。即ち、該アイドルギア18を該
ギアケース5とは別体のホルダ19に支持させ、
該ホルダ19を従動軸12を軸支する右側の半部
5aとは逆側の左側の半部5bに、割面aと直交
する方向に移動自在に且つ該左側の半部5bの外
面に備える固定部材20で固定自在に支持させる
ようにし、これを図示のものに付更に詳述すれ
ば、該ホルダ19は、該アイドルギア18をその
支軸18aにおいて支持する軸方向両側の1対に
設けられるものとし、該左側の半部5bの内面に
割面aに達する長さの取付基部21を突設して、
該取付基部21に第5図に示す如く割面aと直交
する方向の貫通孔22を1対に形成し、該各ホル
ダ19をこれと一体のロツド19aにおいて該各
貫通孔22に摺動自在に挿通支持させると共に、
該ロツド19aの外端部において前記固定部材2
0たるナツトにより該各ホルダ19を該左側の半
部5bに固定自在とした。
Here, the reverse gear train GR has an idle gear 18 interposed between the drive gear 16 on the drive shaft 9 and the driven gear 17 on the driven shaft 12, and serves as a support device for the idle gear 18. The present invention was applied. That is, the idle gear 18 is supported by a holder 19 separate from the gear case 5,
The holder 19 is provided on the left half 5b on the opposite side to the right half 5a that pivotally supports the driven shaft 12, so as to be movable in a direction perpendicular to the split surface a, and on the outer surface of the left half 5b. The holders 19 are fixedly supported by a fixing member 20, and in more detail, the holders 19 are provided on a pair of axially opposite sides supporting the idle gear 18 at its support shaft 18a. A mounting base 21 having a length reaching the split surface a is provided protrudingly on the inner surface of the left half part 5b,
A pair of through holes 22 are formed in the mounting base 21 in a direction perpendicular to the split surface a as shown in FIG. Insert and support the
At the outer end of the rod 19a, the fixing member 2
Each holder 19 can be fixed to the left half portion 5b by a nut.

尚、該両ホルダ19,19の一方には、該支軸
18aの軸孔18bを介してその外周の該アイド
ルギア18の軸支部18cに潤滑油を供給する油
孔23を形成し、又その他方には該支軸18aを
抜止めするピン24を圧入した。
An oil hole 23 is formed in one of the holders 19, 19 to supply lubricating oil to the shaft support 18c of the idle gear 18 on the outer periphery of the support shaft 18a through the shaft hole 18b of the support shaft 18a. A pin 24 for preventing the support shaft 18a from coming off was press-fitted into the other end.

第6図はエンジンのスロツトル開度が所定値以
下のときにのみ後進側へのチエンジ操作を行い得
られるようにした誤操作防止機構を示し、シフト
ドラム13に係合してその後進位置への回動を阻
止するストツパ25を、自動2輪車1のハンドル
に設けたスイツチユニツト26上の操作子27と
これに連動する操作ワイヤ28とから成る操作部
材の操作で該シフトドラム13から離脱させるよ
うにすると共に、スロツトル開度が所定値以上の
ときに作動して該操作部材を操作不能にロツクす
るロツク装置29を設けた。
FIG. 6 shows an erroneous operation prevention mechanism that allows the engine to change gears to the reverse side only when the throttle opening is below a predetermined value. The stopper 25 that prevents the shift drum 13 from moving is detached from the shift drum 13 by operating an operating member consisting of an operating member 27 on a switch unit 26 provided on the handle of the motorcycle 1 and an operating wire 28 linked thereto. In addition, a locking device 29 is provided which operates when the throttle opening exceeds a predetermined value to lock the operating member inoperable.

これを更に詳述するに、該ロツク装置29は、
例えば操作ワイヤ28上の突子30に係合するロ
ツク位置とその側方の解除位置とに揺動自在のロ
ツク片31を備え、該ロツク片31をハンドルの
アクセルグリツプ32に連動するスロツトワイヤ
33上のカム34によりスロツトル開度の所定値
以上ではロツク位置とそれ以下では解除位置とに
切換えるようにして成るもので、かくて該ロツク
片31が解除位置に存するスロツトル開度の所定
値以下のときにのみ、該操作ワイヤ28を介して
の該ストツパ25の離脱動作が与えられ、該シフ
トドラム13の後進位置への回動、即ち後進側へ
のテエンジ操作が可能となるようにした。
To explain this in further detail, the locking device 29 includes:
For example, a swingable lock piece 31 is provided at a lock position where it engages with a protrusion 30 on the operating wire 28 and a release position on the side thereof, and the lock piece 31 is attached to a slot wire 33 that is linked to an accelerator grip 32 of the handle. The cam 34 switches the throttle opening to a lock position when the throttle opening is above a predetermined value, and to a release position when the throttle opening is below a predetermined value. Only the stopper 25 can be moved away via the operation wire 28, and the shift drum 13 can be rotated to the reverse position, that is, can be turned to the reverse side.

図面で35はスイツチユニツト26に配置した
誤操作防止機構の作動表示ランプを示す。
In the drawing, numeral 35 indicates an operation indicator lamp of the erroneous operation prevention mechanism disposed in the switch unit 26.

次いで上記の如く構成した本発明の作動を説明
するに、ギアケース5の分解に際しては、先ず固
定部材20たるナツトを弛めるもので、かくする
ときは各ホルダ19が左側の半部5bに対し割面
aと直交する方向即ち第2図で左右方向に移動自
在となり、アイドルギア18の駆動ギア16への
係合で該各ホルダ19が図示の組付位置に拘速さ
れていても、該左側の半部5bは左方に分離可能
となる。
Next, to explain the operation of the present invention constructed as described above, when disassembling the gear case 5, first loosen the nut that is the fixing member 20, and when doing so, each holder 19 is separated from the left half 5b. It is movable in the direction perpendicular to plane a, that is, in the left-right direction in FIG. The half portion 5b can be separated to the left.

そして、該左側の半部5bを割面aに軸支する
駆動軸9に対しての上下方向の遊びがでる所定の
分離位置まで左動させた後、これを一旦上方にず
らしてそのまま左方に分離するもので、これによ
ればアイドルギア18は駆動ギア16を乗り越え
て該左側の半部5bと共に右側の半部5aから取
外され、以後は後進ギア列GRを有しない通常の
自動2輪車用変速機と同様の方法でメンテナンス
作業を行い得られる。
Then, after moving the left half 5b to the left to a predetermined separation position where there is play in the vertical direction with respect to the drive shaft 9 that is pivotally supported on the split surface a, it is temporarily shifted upward and moved to the left as it is. According to this, the idle gear 18 is removed from the right half part 5a together with the left half part 5b by climbing over the drive gear 16, and from then on, the idle gear 18 is removed from the right half part 5a together with the left half part 5b. Maintenance work can be performed in the same manner as for wheeled vehicle transmissions.

ギアケース5の組立は上記とは逆の手順で行え
ば良い。
The gear case 5 can be assembled by following the procedure reverse to the above.

尚、本発明は上下方向に分離される型式のクラ
ンクケースでギアケースを構成する場合にも適用
可能であり、又クランクケースとは別個のギアケ
ース内に後進用アイドルギア以外のアイドルギア
を支持する場合にも適用可能である。
The present invention can also be applied to cases in which the gear case is configured with a type of crankcase that is separated in the vertical direction, and idle gears other than the reverse idle gear can be supported in a gear case separate from the crankcase. It is also applicable when

この様に本発明によるときは、ギアケースの割
面に軸支される軸と一側の半部に軸支される軸と
の間のギア列に介在されるアイドルギアをホルダ
を介して他側の半部に支持させるもので、該アイ
ドルギアを該他側の半部と共に該一側の半部から
取外すことが出来てメンテナンス性が良好とな
り、而も該ホルダは該他側の半部にその外面の固
定部材で固定されて、その固定を解くことにより
割面と直交する方向に移動自在となり、該アイド
ルギアが所定の組付位置に拘速されていても該他
側の半部を割面と直交する方向に動かして、該ア
イドルギアに無理な力をかけることなくギアケー
スの分解や組立を行うことが出来る効果を有す
る。
As described above, according to the present invention, the idle gear interposed in the gear train between the shaft supported on the split surface of the gear case and the shaft supported on one half of the gear case is connected to the other gear through the holder. The idle gear can be removed from the one half along with the other half for easy maintenance, and the holder is supported by the other half. is fixed by a fixing member on its outer surface, and by releasing the fixation, it can move freely in a direction perpendicular to the split surface, so that even if the idle gear is fixed at a predetermined assembly position, the other half This has the effect that the gear case can be disassembled and assembled without applying excessive force to the idle gear by moving it in a direction perpendicular to the split surface.

【図面の簡単な説明】[Brief explanation of the drawing]

第1図は本発明装置を組込んだ変速機を備える
サイドカー付自動2輪車の平面図、第2図はその
変速機の截断背面図、第3図乃至第5図は夫々第
2図の−線乃至−線截断面図、第6図は
その変速機の後進チエンジ操作の誤操作防止機構
を示す機構図である。 5…ギアケース、5a…右側(一側)の半部、
5b…左側(他側)の半部、a…割面、9…駆動
軸(割面に軸支される軸)、12…従動軸(一側
の半部に軸支される軸)、GR…後進ギア列、18
…アイドルギア、19…ホルダ、20…固定部
材。
FIG. 1 is a plan view of a motorcycle with a sidecar equipped with a transmission incorporating the device of the present invention, FIG. 2 is a cutaway rear view of the transmission, and FIGS. 3 to 5 are the same as those shown in FIG. FIG. 6 is a sectional view taken along line - - -, and is a mechanism diagram showing a mechanism for preventing erroneous operation of the reverse change operation of the transmission. 5... Gear case, 5a... Right side (one side) half,
5b... Left side (other side) half, a... Split surface, 9... Drive shaft (axis supported by the split surface), 12... Driven shaft (shaft supported by one half), GR ...Reverse gear train, 18
...Idle gear, 19...Holder, 20...Fixing member.

Claims (1)

【特許請求の範囲】[Claims] 1 ギアケース内に、該ギアケースを構成する一
側の半部と他側の半部との割面に軸支される軸と
該一側の半部に軸支される軸とを連結する中間の
アイドルギアを有するギア列を収容するものにお
いて、該アイドルギアを該ギアケースとは別体の
ホルダに支持させ、該ホルダを該他側の半部に、
該割面と直交する方向に移動自在に且つ該他側の
半部の外面に備える固定部材で固定自在に支持さ
せたことを特徴とするアイドルギアの支持装置。
1. In a gear case, connect a shaft that is supported by a split surface between one half and the other half of the gear case, and a shaft that is supported by the one half. In a device that accommodates a gear train having an intermediate idle gear, the idle gear is supported by a holder separate from the gear case, and the holder is attached to the other half of the gear case.
A supporting device for an idle gear, characterized in that the idle gear is supported movably in a direction perpendicular to the split surface and fixedly supported by a fixing member provided on the outer surface of the other half.
JP3747883A 1983-03-09 1983-03-09 Supporting device for idle gear Granted JPS59164452A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP3747883A JPS59164452A (en) 1983-03-09 1983-03-09 Supporting device for idle gear

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP3747883A JPS59164452A (en) 1983-03-09 1983-03-09 Supporting device for idle gear

Publications (2)

Publication Number Publication Date
JPS59164452A JPS59164452A (en) 1984-09-17
JPS6239301B2 true JPS6239301B2 (en) 1987-08-21

Family

ID=12498624

Family Applications (1)

Application Number Title Priority Date Filing Date
JP3747883A Granted JPS59164452A (en) 1983-03-09 1983-03-09 Supporting device for idle gear

Country Status (1)

Country Link
JP (1) JPS59164452A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007078086A (en) * 2005-09-14 2007-03-29 Honda Motor Co Ltd Transmission shaft supporting structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007078086A (en) * 2005-09-14 2007-03-29 Honda Motor Co Ltd Transmission shaft supporting structure

Also Published As

Publication number Publication date
JPS59164452A (en) 1984-09-17

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