JPH0431356U - - Google Patents

Description

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

図面は本考案の実施例を示し、第１図は農作業
機の側面図、第２図は平面図、第３図は第１実施
例の要部断面図、第４図は第２実施例の動力伝達
系統の概略図、第５図は第２実施例の要部拡大断
面図である。 １……農作業機、２……車輪、３……車体、４
……エンジン、５……ＰＴＯ軸、６……ミツシヨ
ンケース、９……操縦ハンドル、１５……駆動軸
、１６……従動軸、２１，３６……小歯車、２２
，２３……スプライン部、２４……内歯車体、２
６……中間歯車、２８……クラツチ体、２８ａ，
２８ｂ……係合部。 The drawings show embodiments of the present invention; Fig. 1 is a side view of the agricultural machine, Fig. 2 is a plan view, Fig. 3 is a sectional view of main parts of the first embodiment, and Fig. 4 is a cross-sectional view of the second embodiment. A schematic diagram of the power transmission system, and FIG. 5 is an enlarged sectional view of the main part of the second embodiment. 1... Agricultural machine, 2... Wheels, 3... Vehicle body, 4
... Engine, 5 ... PTO shaft, 6 ... Mission case, 9 ... Control handle, 15 ... Drive shaft, 16 ... Driven shaft, 21, 36 ... Small gear, 22
, 23... Spline portion, 24... Internal gear body, 2
6... Intermediate gear, 28... Clutch body, 28a,
28b...Engaging portion.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] エンジンを搭載した車体に車輪への走行ミツシ
ヨンを設けて成る農作業機において、走行ミツシ
ヨンの従動軸に、前記エンジンからの動力にて駆
動する駆動軸を回転自在に被嵌し、駆動軸と一体
的に回転する小歯車の外周に、これと同心状に内
歯車体を回転自在に配設し、該内歯車体における
内径歯と前記小歯車とに噛み合う中間歯車を位置
固定的に介挿する一方、前記駆動軸と従動軸とに
跨がつて被嵌し、且つその軸線に沿つて移動自在
に構成したクラツチ体を、そのボス部が従動軸に
対して常時係合するように構成し、クラツチ体を
前記内歯車体に継断可能に構成し、該クラツチ体
を内歯車に接続したとき当該クラツチ体と駆動軸
との係合が解除される状態と、クラツチ体と内歯
車との接続が解除されるとき駆動軸と従動軸とが
一体的に回転する状態とに切り換え自在に構成し
たことを特徴とする農作業機における前後進切り
換え装置。 In an agricultural machine in which a vehicle body equipped with an engine is provided with a traveling transmission for the wheels, a drive shaft driven by power from the engine is rotatably fitted onto the driven shaft of the traveling transmission, and is integrated with the drive shaft. An internal gear body is rotatably disposed concentrically around the outer periphery of a small gear that rotates, and an intermediate gear that meshes with the internal teeth of the internal gear body and the small gear is inserted in a fixed position. , the clutch body is configured such that the clutch body is fitted over the drive shaft and the driven shaft and is movable along the axes of the drive shaft and the driven shaft, and the boss portion of the clutch body is configured to constantly engage with the driven shaft; The clutch body is configured to be connectable to and disconnected from the internal gear body, and when the clutch body is connected to the internal gear, the engagement between the clutch body and the drive shaft is released, and the connection between the clutch body and the internal gear is 1. A forward/reverse switching device for an agricultural working machine, characterized in that, when released, the drive shaft and the driven shaft can be freely switched to a state in which they rotate integrally.