JPS58422A - Car for riding and serving - Google Patents

Abstract

PURPOSE:To construct the titled car advantageously in view point of the operation, structure and cost, by interposing a pair of left and right steering clutches instead of a differential mechanism. CONSTITUTION:A change gear apparatus 19 capable of changing to two forward speeds and one reverse by the shift of a change gear 19A is provided to a first transmission shaft 16 geared to an input shaft 7 in a first transmission case 3, a second transmission shaft 17 geared thereto and a first output shaft 18 to a second transmission case 10. Within the second transmssion case 10, a differential mechanism 21 is interposed in transmission systems from the first output shaft 18 to axles 20, 20 of front wheels 9, 9 and within the third transmission case 12, the steering clutches 24, 24 are respectively interposed in transmission systems from the second output shaft 22 geared to the differential mechanism 21 to axles 23, 23 of rear wheels 11, 11.

Description

DETAILED DESCRIPTION OF THE INVENTION This fii Akira is capable of operating one of each pair of left and right drive wheels arranged on the main body of the aircraft. The present invention relates to riding working machines such as rice transplanters, which have a similar configuration.

Conventionally, in such a riding work machine, a differential mechanism has been interposed in the transmission system to the steering drive wheel and the transmission system to the other drive wheel, respectively. #cs when driving straight in the field or crossing ridges? There,
If the traveling negative fr acting on the other driving wheel is different on the left and right sides, the aircraft swings to the left due to the operation of the differential mechanism. Although it is possible to create a difference in the rotational speed of the left and right wheels by the operation of the It is necessary to perform a turning operation.Therefore, in order to improve the straight-line performance and turning performance,
It is necessary to provide the other driving wheel 1Ivc differential lock mechanism and a pair of left and right brakes.
1. There were disadvantages in terms of structure and cost.

This F14 is based on the above-mentioned dormitory conditions, and has improved straight-line performance and turning performance KIII in terms of operation, structure, and cost.
The AFC advantageously has the purpose of making itself completely clear.

The passenger working vehicle according to the present invention is equipped with a differential aI & 411 in the transmission system to the steering drive shaft.
In addition to intervening I, the transmission system to the other drive wheel #/c is unique in that it involves a pair of left and right steering clutches, so it is suitable for use in soft fields such as paddy fields. When traveling straight and crossing a ridge, I'C &Z'''C are set to both the left and right 0 control knobs, so even if the driving load acting on the drive wheels is on the left and right sides, the aircraft can be adjusted with a simple steering operation. In addition, when making a single turn in a soft # field, by disengaging the steering clutch on the inside of the turning direction, the steering clutch can be turned off and the steering clutch on the inside of the turning direction can be turned off. Since it is possible to substantially stop the vehicle by utilizing the running resistance of the single wheel t'' at m, it is possible to make a small turn j211 using this wheel as a fulcrum.

Therefore, instead of separately providing a deblocking mechanism or a pair of left and right brakes as in the past, a pair of left and right steering clutches are used instead of the differential mechanism that is interposed in the transmission system to one of the drive wheels. Because all I had to do was to improve the straight-line performance and turning performance, the operation, structure, and control aspects of the engine were greatly affected.

Hereinafter, embodiments of the present invention will be explained based on the drawings.
In the riding rice transplanter 1111, a single-row planting device (=) is connected and supported via a link mechanism (1) to the rear of the rice transplanter (=) so that it can be driven up and down.
are related to at.

That is, the engine (4) is installed at the front of the main frame (1).
Tojin's engine (4) drive shaft (6) K Beltchi 293
The main clutch (6) is connected to the human power shaft (1
) and a pair of left and right drive wheels (・) that can be steered and rotated around the vertical axis;
When installing the 8th transmission frame supporting the engine (4) with the *1 engine (4) positioned directly under the engine (4), the -○ main 7 frame 11
At the rear of the main frame 1, an 8th transmission gear is attached to support a pair of left and right rear driving single wheels u1) #, and
, a steering handle 11 and a driver's seat are provided for the main frame ill, and the main frame ill
In the darkness between the link mechanism +11 and the link mechanism +11, a planting device (a shilling for driving up and down) is installed.

As shown in FIG. 3, within the first transmission goose 111, the input shaft 171 is interlocked with the VC gear, and then the first transmission shaft g and the eighth transmission shaft Iη are interlocked with the gear.
and the first output shaft 1 to the eighth transmission case.
Transmission device that can be changed to forward gLR and reverse IR by shifting the transmission gear (19mm) between lf4 and tnt.
At the same time, in the eighth transmission gear, a differential gear is interposed in the transmission system from the first output shaft 01 to the front wheel Ill, (the lower shaft 4, -), and the jIs transmission In the Koos train, from the 8th output shaft (2) linked to the differential gear @31 to the rear wheel (...)
A steering clutch is installed in the transmission system for the axle (c) and @, respectively.
24 intervening.

Toward the rear from the 1111 transmission goose 7), the planting has a power take-off shaft 4 protruding from the device 1, and the transmission system from the 8th intermediate transmission wheel a4 to the power take-off shaft includes: By shifting the transmission gear (86mm), the drive speed of the power output shaft 4, the knob 9, and the spacing can be changed to 3 stages 1
11 & transmission device -, safety clutch @ and planting are interposed with clutch -.

In addition, as shown in Figure IIs, by stepping on the pair of left and right Kukutsuchi pedals 4 provided at the foot of the control section, 1
Separate IC switching operation l1 via the control arms of Kutsuchi (foundation) and H, and ms husband's respective relays rH, @l
lJ111a and the front ε release wire 1
．． (il phantom O@ inner wire (81mm)
, (Slm) and Actawire (81B), (81
Among B), the above-mentioned Akutawai ff (81B).

(8111)l? Supports the front bite, & the installation is bird ^-(1,
The gear shift lever is configured to be able to slide freely in the Z direction, and this attachment connects the metal fittings and the shifting mechanism lever of the running quality shifting device to allow the vehicle to be driven on the road and then operated at high speeds. When operated in position *, -〇 period installation is done with metal fittings-
In order to simultaneously move the steering clutch 124i and the steering clutch 124i, i.e., the front axle 1).

191 are linked to reveal the drive running pattern 11 only.

Even if the steering clutch is configured as follows and C14 is applied, the result is lt''.

In addition, as shown in Figure 2, both parts (No. 8 A) can be fitted and engaged freely by sliding movement in the direction of the rotation axis.
(84B), the locking protrusion (141) of the male member (84B) is formed by kneading in a semi-polar direction cJ8 in a straight line, and the locking protrusion (141) of the female member (84B) is
A) It is formed in a shape along the half-polar direction at four locations displaced by 0 degrees each time the i% rotation is made.

In the case of this configuration, #-1, the retaining protrusion (84
1)) and holding #1 (84a) can be easily formed by direct machining only.

The opposite side and figure - are the brakes.

[Brief explanation of the drawing]

Figure dji illustrates the aspect of the hero of the riding work vehicle related to tree fh #4, Figure 1 is the overall GA view of the riding rice transplanter, Figure 8 is the overall plan view, and Figure 8 is the transmission system of the main parts. 1 is an operation system diagram of the steering clutch, and FIG. 1 is an enlarged perspective view of the steering clutch. +II, (11)... Drive wheel, ev...
...Differential mechanism, -...Steering clutch.

Claims (1)

[Claims] ■ A pair of left and right drive wheels 191 arranged at the front and rear of the aircraft body.
, till and ul) ”; In a riding work machine configured to be able to perform steering operation, -10,000 of (ml) is provided with a differential mechanism in the transmission system to the steering drive wheels (・l * tel). between the other drive wheels,
The transmission system to ul) includes a pair of left and right steering wheels, &
41. (2) The riding work vehicle according to item 0 of the range of reference II & house, wherein the driving drive wheels +91 and till are the front wheels. ■ A riding work vehicle as described in the scope 0 or ψ of patent*, t, in which the subject machine is a riding rice transplanter.