JPH03107563U - - Google Patents

Description

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

図面は、本考案に係る作業用走行機体における
レバー変速の規制装置の実施例を示したものであ
つて、第１図は農用トラクタの全体側面図、第２
図はトランスミツシヨンケースの展開断面図、第
３図、第４図は規制装置の作用を説明した正面図
、第５図は同上側面図である。 図中、１は走行機体、３は副変速レバー、４は
超低速用変速レバー、７は副変速機構、８は超低
速用変速機構、１０ｃは第一規制具、１６は第二
規制具である。 The drawings show an embodiment of the lever speed change regulating device in a working traveling body according to the present invention, and FIG. 1 is an overall side view of an agricultural tractor, and FIG.
The figure is a developed sectional view of the transmission case, FIGS. 3 and 4 are front views illustrating the action of the regulating device, and FIG. 5 is a side view of the same. In the figure, 1 is the traveling aircraft, 3 is the sub-shift lever, 4 is the very low-speed shift lever, 7 is the sub-transmission mechanism, 8 is the very low-speed shift mechanism, 10c is the first restrictor, and 16 is the second restrictor. be.

Claims (1)

【実用新案登録請求の範囲】[Scope of utility model registration request] 走行変速機構に、主変速機溝の他に、さらに中
高速、中立および低速の副変速切換えを行う副変
速機構と、超低速変速の入り切りを行う超低速用
変速機構とを備えてなる作業用走行機体において
、前記副変速機構の変速操作を行う副変速レバー
に第一規制具を、超低速用変速機構の切換え操作
を行う超低速用変速レバーに第二規制具を設け、
これら両規制具同志を、副変速レバーが中高速位
置にセツトされたときの第一規制具位置と、超低
用変速レバーが入り位置にセツトされたときの第
二規制具位置とが互いに干渉するよう移動位置に
連繋を持たせて形成して、両規制具のうちの何れ
か一方が先行して上記干渉位置に移動したときに
は、他方の規制具が後から前記干渉位置に移動す
るのを規制して、超低速用変速レバーが入り位置
にセツトされた状態では副変速レバーの中高速位
置への操作を規制し、副変速レバーが中高速位置
にセツトされた状態では超低速用変速レバーの入
り位置への操作を規制する構成にしたことを特徴
とする作業用走行機体におけるレバー変速の規制
装置。 For work, the traveling transmission mechanism is equipped with, in addition to the main transmission groove, an auxiliary transmission mechanism that switches between medium and high speeds, neutral and low speeds, and an ultra-low speed transmission mechanism that switches on and off ultra-low speed shifts. In the traveling aircraft, a first restricting tool is provided on a sub-shift lever that performs a speed change operation of the sub-transmission mechanism, and a second restricting tool is provided on an ultra-low speed shift lever that performs a switching operation of the ultra-low speed speed change mechanism;
The position of the first restrictor when the sub-shift lever is set to the medium-high speed position and the position of the second restrictor when the ultra-low speed change lever is set to the engaged position interfere with each other. The movement positions are linked so that when either one of the two restrictors moves to the interference position in advance, the other restrictor is prevented from moving to the interference position later. When the ultra-low speed gear lever is set to the engaged position, the operation of the sub-shift lever to the medium-high speed position is restricted, and when the sub-shift lever is set to the medium-high position, the ultra-low speed gear lever is What is claimed is: 1. A lever shift regulating device for a work traveling machine, characterized in that the device is configured to regulate the operation of the lever to the entry position.