JPS63104758U

JPS63104758U -

Info

Publication number: JPS63104758U
Application number: JP20181486U
Authority: JP
Priority date: 1986-12-26
Filing date: 1986-12-26
Publication date: 1988-07-07

Description

[Brief explanation of the drawing]

図面は本考案に係る無段変速装置の実施例を示
し、第１図はカム機構の構成を示す縦断正面図、
第２図イ，ロ及び第３図イ，ロはカム機構の作動
状態を示す説明図、第４図は走行用伝動構造を示
す横断平面図、第５図は駆動車軸の伝動構造を示
す縦断側面図、第６図は駆動車軸の伝動構造を示
す縦断背面図、第７図及び第８図は駆動車軸の昇
降操作構造を示す一部切欠き側面図、第９図は駆
動車軸昇降操作用レバーの取付構造を示す縦断背
面図、第１０図は駆動車軸の揺動構造を示す横断
面図、第１１図及び第１２図は出力ミツシヨン部
を揺動案内するブラケツトの形状を示す図、第１
３図は変速操作構造を示す概略図、第１４図はシ
フトフオーク軸の支持構造を示す背面図、第１５
図は歩行型芝刈り機の側面図である。１８……駆動回転体、１８ａ……操作側傾斜面
カム、１９……駆動側デイスク、１９ａ……被操
作側傾斜面カム、２０……受動側デイスク、Ｂ…
…カム機構。 The drawings show an embodiment of the continuously variable transmission according to the present invention, and FIG. 1 is a longitudinal sectional front view showing the configuration of the cam mechanism.
Figure 2 A and B and Figure 3 A and B are explanatory diagrams showing the operating state of the cam mechanism, Figure 4 is a cross-sectional plan view showing the transmission structure for traveling, and Figure 5 is a longitudinal cross-section showing the transmission structure of the drive axle. 6 is a vertical cross-sectional rear view showing the transmission structure of the drive axle, FIGS. 7 and 8 are partially cutaway side views showing the structure for lifting and lowering the drive axle, and FIG. 9 is a side view showing the structure for lifting and lowering the drive axle. 10 is a cross-sectional view showing the swinging structure of the drive axle, FIGS. 11 and 12 are views showing the shape of the bracket that swings and guides the output transmission part, and FIG. 1
Fig. 3 is a schematic diagram showing the shift operation structure, Fig. 14 is a rear view showing the support structure of the shift fork shaft, and Fig. 15 is a schematic diagram showing the shift operation structure.
The figure is a side view of a walk-behind lawn mower. 18... Drive rotating body, 18a... Operation side inclined surface cam, 19... Drive side disk, 19a... Operated side inclined surface cam, 20... Passive side disk, B...
...cam mechanism.

Claims

[Scope of utility model registration request]

The passive side disk 20 is arranged so that its outer peripheral portion contacts the side surface of the driving side disk 19 and is rotated around an axis perpendicular to the rotational axis of the driving side disk 19.
At the same time, the drive side disk 19 is configured to be configured to change speed by sliding operation in the direction of the axis of the driven side disk 20, and the drive side disk 19 is attached to a drive rotating body 18 concentric with the drive side disk 19. The driving rotating body 18 and the driving side disk 19 are interlocked, and the driving side disk 20 is driven A continuously variable transmission in which a cam mechanism B is provided between the drive rotating body 18 and the drive side disk 19, and the cam mechanism B is automatically operated so that the pressure force between the drive side disk 19 and the driven side disk 20 increases as the load increases. In this device, the cam mechanism B is configured such that the operating side inclined surface cam 18a is connected to the driving rotating body 18, and the operated side inclined surface cam 19a is connected to the driving side disk 19.
A continuously variable transmission device in which the operating side inclined surface cam 18a and the operated side inclined surface cam 19a are brought into direct contact with each other.