JPH0457522U

JPH0457522U -

Info

Publication number: JPH0457522U
Application number: JP9876690U
Authority: JP
Priority date: 1990-09-20
Filing date: 1990-09-20
Publication date: 1992-05-18

Description

[Brief explanation of the drawing]

第１図はゲート全体の概略正面図、第２図は要
部の拡大断面図、第３図は第２図の左側面図、第
４図は無断変速機の拡大断面図、第５図は第４図
におけるカムの展開図、第６図は第５図における
カムが回転したときの状態を示す展開図である。２……ゲート、４……ラツク部、６……操作ハ
ンドル、７……無断変速機、５０……直交変換伝
達機構、５１……ウオーム軸、５２……操作軸、
５４……三位置切換型クラツチ、５４Ａ……中立
クラツチスリーブ、５４Ｂ……第１クラツチケー
ス、５４Ｃ……第２クラツチケース、５５……開
き方向の回転伝達系、５５Ａ……出力歯車、５５
Ｂ……入力歯車、５６……閉じ方向の回転伝達系
、５６Ａ……ウオームホイール、５６Ｂ……ウオ
ーム、５７……第１の一方向クラツチ、５８……
第２の一方向クラツチ、６１……出力回転子、７
１……入力軸、７２……出力軸。 Fig. 1 is a schematic front view of the entire gate, Fig. 2 is an enlarged sectional view of the main parts, Fig. 3 is a left side view of Fig. 2, Fig. 4 is an enlarged sectional view of the continuously variable transmission, and Fig. 5 is an enlarged sectional view of the main part. FIG. 4 is a developed view of the cam, and FIG. 6 is a developed view of the cam shown in FIG. 5 when it is rotated. 2... Gate, 4... Rack part, 6... Operating handle, 7... Constantly variable transmission, 50... Orthogonal conversion transmission mechanism, 51... Worm shaft, 52... Operating shaft,
54... Three position switching type clutch, 54A... Neutral clutch sleeve, 54B... First clutch case, 54C... Second clutch case, 55... Rotation transmission system in opening direction, 55A... Output gear, 55
B...Input gear, 56...Rotation transmission system in the closing direction, 56A...Worm wheel, 56B...Worm, 57...First one-way clutch, 58...
Second one-way clutch, 61... Output rotor, 7
1...Input axis, 72...Output axis.

Claims

[Scope of Claim for Utility Model Registration] An operating handle is attached to the input shaft of a continuously variable transmission whose gear ratio changes automatically in response to changes in load and which is capable of shifting in both forward and reverse rotations. An operating shaft is arranged parallel to and freely rotatable to the output shaft of the machine, a neutral clutch sleeve of a three-position switching clutch is attached to the operating shaft so as to be rotatable at the same time, and the operating shaft is loosely fitted onto the operating shaft of the three-position switching clutch. A first clutch case is connected to the output shaft via a rotation transmission system in the opening direction, and a second clutch case loosely fitted to the operating shaft of the three-position clutch is rotated in the closing direction. The rotation transmission system in the opening direction is connected to the output shaft via a transmission system, and the rotation transmission system in the opening direction is loosely fitted to the output shaft through a first one-way clutch that transmits only the rotation of the output shaft in the opening direction. an input gear that meshes with the output gear and is loosely fitted on the operating shaft so that rotation transmission in the closing direction of the operating shaft is interrupted by a second one-way clutch so that it can interlock with the first clutch case. The rotation transmission system in the closing direction includes a worm wheel that is loosely fitted on the operating shaft so as to be interlocked with the second clutch case, a worm that meshes with the worm wheel, and a rotation transmission system that transmits the rotation of the output shaft. For a gate, comprising an orthogonal transformation transmission mechanism that transmits transmission to a worm shaft on which a worm is provided, and an output rotor interlocked with the operating shaft is engaged with a rack part of the gate that can be raised and lowered. Manual operating device.