JPS63173895U

JPS63173895U -

Info

Publication number: JPS63173895U
Application number: JP6749187U
Authority: JP
Priority date: 1987-05-06
Filing date: 1987-05-06
Publication date: 1988-11-11

Description

[Brief explanation of drawings]

第１図ないし第５図は本考案の一実施例を示す
もので、第１図は一実施例が適用された自動二輪
車を示す側面図、第２図は要部を拡大した正面図
、第３図は要部を拡大した側面図、第４図は第１
の回転伝達機構の概略を示す分解斜視図、第５図
は第２の回転伝達機構の概略を示す平面図、第６
図および第７図は一実施例が適用された自動二輪
車における前照灯の取り付け構造の一例を示すも
ので、第６図は要部の概略を示す平面図、第７図
は側面図、第８図および第９図は前照灯の取り付
け構造の他の例を示すもので、第８図は概略平面
図、第９図は側面図、第１０図および第１１図は
それぞれ前照灯の取り付け構造のさらに他の例を
示す概略平面図、第１２図は本考案の第２の回転
伝達機構の変形例を示す概略平面図、第１３図お
よび第１４図は本考案の第３の回転伝達機構の変
形例を示すもので、第１３図は外観斜視図、第１
４図は一部を省略した縦断面図である。１……自動二輪車、２……車体フレーム、３…
…ヘツドパイプ、４……ステアリングステム、８
……前輪、８ａ……車軸、１０……（原動機）エ
ンジン、１６……フロントフオーク、１７……前
照灯、１８……前輪駆動装置、１９……ドライブ
シヤフト、１９ａ……第１のドライブシヤフト構
成体、１９ｂ……第２のドライブシヤフト構成体
、１９ｃ……第３のドライブシヤフト構成体、２
０……（回転部材）ドライブギヤ、２１……第１
の回転伝達機構、２２……第２の回転伝達機構、
２３……第３の回転伝達機構、２４……スプライ
ン、２６……ピニオンギヤ、２７……連絡シヤフ
ト、２８……ドリブンギヤ、２９……ギヤ、３０
……チエーン、３１……ベベルギヤ、３２……ベ
ベルギヤ、５０……アイドルギヤ、５１……ギヤ
、５２……ピニオンギヤ。 1 to 5 show an embodiment of the present invention, in which FIG. 1 is a side view showing a motorcycle to which the embodiment is applied, FIG. 2 is an enlarged front view of main parts, and FIG. Figure 3 is an enlarged side view of the main parts, Figure 4 is the 1st
FIG. 5 is an exploded perspective view showing an outline of the second rotation transmission mechanism; FIG. 5 is a plan view showing an outline of the second rotation transmission mechanism;
7 and 7 show an example of a headlamp mounting structure in a motorcycle to which an embodiment is applied. FIG. 6 is a plan view schematically showing the main parts, FIG. 7 is a side view, Figures 8 and 9 show other examples of headlight mounting structures, with Figure 8 being a schematic plan view, Figure 9 being a side view, and Figures 10 and 11 respectively showing the headlight mounting structure. A schematic plan view showing still another example of the mounting structure, FIG. 12 is a schematic plan view showing a modification of the second rotation transmission mechanism of the present invention, and FIGS. 13 and 14 show a third rotation transmission mechanism of the present invention. This shows a modification of the transmission mechanism, and Fig. 13 is an external perspective view, and Fig. 1
FIG. 4 is a partially omitted longitudinal cross-sectional view. 1...Motorcycle, 2...Vehicle frame, 3...
...Head pipe, 4...Steering stem, 8
...front wheel, 8a ... axle, 10 ... (prime mover) engine, 16 ... front fork, 17 ... headlight, 18 ... front wheel drive device, 19 ... drive shaft, 19a ... first drive Shaft structure, 19b...second driveshaft structure, 19c...third driveshaft structure, 2
0... (rotating member) drive gear, 21... first
rotation transmission mechanism, 22... second rotation transmission mechanism,
23... Third rotation transmission mechanism, 24... Spline, 26... Pinion gear, 27... Connection shaft, 28... Driven gear, 29... Gear, 30
...Chain, 31...Bevel gear, 32...Bevel gear, 50...Idle gear, 51...Gear, 52...Pinion gear.

Claims

[Scope of utility model registration request]

An extendable front fork is rotatably attached to a head pipe provided at the front of a vehicle body frame of a motorcycle, etc., a front wheel is rotatably attached to the front fork, and the front wheel is attached to the vehicle body frame. The front wheel drive device is rotatably driven by a prime mover, which comprises a drive shaft provided along the front fork, a rotating member disposed on the axis of the head pipe, and the rotating member. a first rotation transmission mechanism provided between the prime mover and transmitting rotation of the prime mover to the rotating member; and a second rotation transmitting mechanism provided between the rotating member and one end of the drive shaft. What is claimed is: 1. A front wheel drive device for a motorcycle or the like, comprising a third rotation transmission mechanism provided between the other end of the drive shaft and the front wheel.