JPS5846832U

JPS5846832U - Power unit for motorcycles

Info

Publication number: JPS5846832U
Application number: JP14197981U
Authority: JP
Inventors: 和男大山
Original assignee: 本田技研工業株式会社
Priority date: 1981-09-26
Filing date: 1981-09-26
Publication date: 1983-03-29
Also published as: JPS6146180Y2

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of the drawing]

第１図は従来のパワーユニットの要部切断側面図、第２
図は本考案の一実施例たるパワーユニットの概念的展開
図、第３図は同要部切断側面図で１・・・パワーユニッ
ト、２・・・伝達ケース、３・・・クランク軸、４・・
・主軸、５・・・副軸、６・・・プライマリ−軸、７・
・・クラッチドライブギヤ、８・・・クラッチドリブン
ギヤ、９・・・セカンダリ−ドライブギヤ、１０・・・
セカンダリ−ドリブンギヤ、１１・・・クラッチユニッ
ト、１２・・・主軸ギヤ、１３・・・副軸ギヤ、１４・
・・スプロケット、１５・・・チェーン、１６・・・上
部ケース、１７・・・中間ケース、１８・・・下部ケー
ス、Ｃ１・・・シリンダー、Ｃ２・・・シリンダー、Ｃ
３・・・シリンダー、Ｄｌ・・・第一分割面、Ｄ２・・
・第二分割面、Ｅ・・・ガソリンエンジン、Ｌ・・・水
平面、Ｔ・・・変速機。補正　昭５７．１．０．１１実用新案登録請求の範囲、図面の簡単な説明を次のよう
に補正する。Ｏ実用新案登録請求の範囲クランクケースを変速機ケースと一体に形成し先自動二
輪車用パワーユニットにおいて、クランク軸を上部ケー
スと中間ケースとで挾持させ、変速機の主軸および副軸
を前記中間ケースと下部ケースとで挾持させたことを特
徴とする自動二輪車用パワーユニット。図面の簡単な説明第１図はパワーユニ“ットの一構造例を示す断面図、第
２図は本考案の一実施例たるパワーユニットの概念的展
開図、第３図は同要部切断側面図である。１・・・パワーユニット、２・・・伝達ケース、３・・
・クランク軸、４・・・主軸、５−・・・副軸、６・・
・プライマリ−軸、７・・・クラッチドライブギヤ、８
・・・クラッチドリブンギヤ、９・・・セカンダリ−ド
ライブギヤ、１０・・・セカンダリ−ドリブンギヤ、１
１・・・クラッチユニット、１２・・・主軸ギヤ、１３
・・・副軸ギヤ、１４・・・スプロケット、１５・・・
チェーン、１６・・・上部ケース、１７・・・中間ケー
ス、１８・・・下部ケース、ｃｌ、ｃ２．ｃ３・・・シ
リンダー、Ｄｌ・・・第一分割面、Ｄ２・・・第二分割
面、Ｅ・・・ガソリンエンジン、Ｌ・・・水平面、Ｔ・
・・変速機。Figure 1 is a cutaway side view of the main parts of a conventional power unit;
The figure is a conceptual development view of a power unit that is an embodiment of the present invention, and Figure 3 is a cutaway side view of the same essential parts. 1...power unit, 2...transmission case, 3...crankshaft, 4...
・Main shaft, 5...Subshaft, 6...Primary axis, 7.
...Clutch drive gear, 8...Clutch driven gear, 9...Secondary drive gear, 10...
Secondary driven gear, 11...Clutch unit, 12...Main shaft gear, 13...Subshaft gear, 14.
...Sprocket, 15...Chain, 16...Upper case, 17...Middle case, 18...Lower case, C1...Cylinder, C2...Cylinder, C
3... Cylinder, Dl... First dividing surface, D2...
・Second dividing plane, E...Gasoline engine, L...Horizontal plane, T...Transmission. Amendment January 11, 1980 The scope of the claims for utility model registration and the brief description of the drawings are amended as follows. O Scope of Utility Model Registration Claims In a power unit for a motorcycle in which a crankcase is formed integrally with a transmission case, the crankshaft is sandwiched between an upper case and an intermediate case, and the main shaft and subshaft of the transmission are connected to the intermediate case. A power unit for a motorcycle characterized by being held between a lower case and a lower case. BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a sectional view showing an example of the structure of a power unit, Fig. 2 is a conceptual development view of a power unit that is an embodiment of the present invention, and Fig. 3 is a cutaway side view of the same essential parts. 1...Power unit, 2...Transmission case, 3...
・Crankshaft, 4...Main shaft, 5-...Subshaft, 6...
・Primary shaft, 7...Clutch drive gear, 8
...Clutch driven gear, 9...Secondary drive gear, 10...Secondary driven gear, 1
1... Clutch unit, 12... Main shaft gear, 13
... Subshaft gear, 14... Sprocket, 15...
Chain, 16... Upper case, 17... Middle case, 18... Lower case, cl, c2. c3...Cylinder, Dl...First dividing surface, D2...Second dividing surface, E...Gasoline engine, L...Horizontal surface, T...
··transmission.

Claims

[Scope of utility model registration request]

In a power unit for a motorcycle in which a crankcase is integrally formed with a transmission case, the crankshaft is sandwiched between an upper case and an intermediate case, and a main shaft and a subshaft of the transmission are sandwiched between the intermediate case and the lower case. A power unit for motorcycles that is characterized by: