JPS6393226U

JPS6393226U -

Info

Publication number: JPS6393226U
Application number: JP19017886U
Authority: JP
Priority date: 1986-12-09
Filing date: 1986-12-09
Publication date: 1988-06-16

Description

[Brief explanation of the drawing]

図面は本考案に係る作業車の前輪変速操作構造
の実施例を示し、第１図は変速レバー及び切換操
作部周りの正面図、第２図は変速レバー及び切換
操作部周りの側面図、第３図は変速レバーの操作
パターンを示す平面図、第４図は農用トラクタの
全体側面図、第５図は別実施例での変速レバーの
操作パターンを示す平面図、第６図は従来構成に
おける変速レバーの操作パターンを示す平面図で
ある。１ａ，１ｂ…前輪、６…切換操作部、７…変速
レバー、１４…操作径路、２８…操縦ハンドル、
Ｎ…中立位置。 The drawings show an embodiment of the front wheel gear shift operation structure for a working vehicle according to the present invention, in which FIG. 1 is a front view of the gear shift lever and the area around the switching operation part, FIG. 2 is a side view of the gear shift lever and the area around the switching operation part, and FIG. 3 is a plan view showing the operation pattern of the gear change lever, FIG. 4 is an overall side view of the agricultural tractor, FIG. 5 is a plan view showing the operation pattern of the gear change lever in another embodiment, and FIG. 6 is the conventional structure. FIG. 3 is a plan view showing an operation pattern of a gear shift lever. 1a, 1b...front wheel, 6...switching operation section, 7...shift lever, 14...operating path, 28...control handle,
N...neutral position.

Claims

[Scope of utility model registration request]

The transmission system for the freely steerable front wheels 1a and 1b includes a front wheel that switches between a standard drive state in which power is transmitted at a drive speed approximately equal to the rear wheel drive speed, and an increased speed drive state in which power is transmitted at a drive speed greater than the rear wheel drive speed. Work in which a transmission is provided, and the steering handle 28 and the front wheel transmission are linked so that the front wheel transmission is operated to the speed-increasing drive side by a steering operation of a set angle or more from a straight-ahead state. In the front wheel transmission operation structure of a vehicle, a switching operation part 6 for switching the control handle 28 and the front wheel transmission between a linked state and a released state is arranged side by side along the operating path 14 of the speed change lever 7 for driving. The disengagement position of the switching operation section 6 and the neutral position N of the operation path 14 are arranged to face each other, and the shift lever 7 is moved to the neutral position N.
By operating the shift lever 7 in a direction intersecting the operating path 14, the shift lever 7 can be freely engaged and disengaged from the switching operation section 6, and in the engaged state, the shift lever 7 switches the transmission for driving. , and a switching operation section 6 can be operated simultaneously.