JPH089349B2 - Riding type work machine - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a riding-type working machine, and more specifically, to a lightweight and small-sized riding machine in which a rice transplanter, a seeder, etc. are mounted on the rear portion of a passenger towing vehicle. Type working machine.

(Prior art and its problems) Conventionally, since a ender that covers the upper side of the rear wheel is provided at the side of the cockpit of the riding type vehicle body at approximately the same height as the cockpit, When the operator performs various work on the work machine mounted on the rear part, the fender becomes an obstacle and the workability is very poor.

(Means for Solving Problems) The present invention takes the following technical means in order to solve the above problems.

That is, the present invention has the cockpit 13 on the upper part of the vehicle body and the left and right wheels 4, which are located on the outer lower side of the cockpit 13 at the lower rear part of the vehicle body.
In the riding type working machine having the working machine C mounted on the rear part of the riding type running vehicle A having four, step 27 is provided at least in front of the cockpit 13 of the riding type running vehicle A, and the rear end of the step 27 Fenders 27a, 27a on the left and right rear wheels 4, 4 in succession
And a step in which the rear part is inclined so that the rear part is higher than the front part is formed on the upper surfaces of the fenders 27a, 27a.

(Advantageous Effects of the Invention) In the present invention, at least the cockpit of the riding-type traveling vehicle body A
The fenders 27a, 27a for the left and right rear wheels 4, 4 are provided continuously to the rear end of the step 27 provided at the front part of the fenders 27a, 27
Since the step which is inclined so that the rear part is higher than the front part is formed on the upper surface of a, when the operator stands up in the cockpit 13 and performs various work on the working machine C, stand in step 27 and If you place your foot on a step that is inclined so that the rear part of the upper surface of the fenders 27a, 27a is higher than the front part, one of the feet will have the rear part of the front part more than the front part, even if you take a posture to extend backward while working. Since it is received by the step inclined so as to be higher, it is possible to prevent the foot from slipping or falling from the step and perform safe work.
Further, the fenders 27a, 27 having a step which is continuous with the rear end of the step 27 and is inclined so that the rear part is higher than the front part
Since a is provided, the operator can move from the cockpit 13 to the work position safely and quickly, and the workability is good.

(Embodiment) A riding type rice transplanter according to an embodiment of the present invention will be described in detail.

A is a riding type towing vehicle, B is a lifting link mechanism, and C is a rice transplanter as a working machine.
It is composed of B and C.

First, the passenger-type tow vehicle A will be described in detail. The airframe is composed of a main mission case 1, a connecting frame 2, a vertical frame 3, a rear axle case 5, left and right transmission cases 5a and 5b, a front axle case 7 and the like. The connecting frame 2 has a U-shape in side view, and its tip is the main mission case 1
It is stuck to. Then, the diff case portion 7a of the front axle case 7 provided integrally with the diff case that houses the diff mechanism inside the connecting frame 2 is freely rotatable around the main transmission case 1 side and the vertical frame 3 fixed to the connecting frame 2. Concentrated on
I am

Reference numeral 27 is a step formed on the same plane, which is provided in front of the cockpit 13 and on both left and right sides, and the engine cover 12 is integrally formed with the engine seat mounted on the engine stand 10 fixed to the vertical frame 3. The engine cover 12 covers the front side and the left and right sides. Then, left and right fenders 27a, 27a are integrally formed at the rear ends of the steps 27, 27 on the left and right sides of the cockpit 13 so as to cover the rear wheels 4, 4 formed higher toward the rear. In addition, an auxiliary step 27b formed one step lower is provided in the front part of step 27.

The vertical frame 3 having the front end fixed to the connecting frame 2 is composed of a thick iron pipe in the illustrated example, and the rear axle case 5 is fixed to the rear end thereof. Inside the rear axle case 5, a diff mechanism or a side clutch mechanism is installed so that power is transmitted to the rear wheels 4, 4.

 5a and 5a are wheel transmission cases.

B is an elevating link mechanism, in which the bases of the upper link 29 and the lower link 30, 30 are pivotally connected to columns 28, 28 standing on the rear axle case 5, and the rear parts of both links are connected by a vertical link 31. Then, a downward arm 32 is fixed to the upper link 29, and the arm 32 is attached to the towing vehicle A side of the hydraulic cylinder 33.
Is configured to be activated by.

The rice transplanter as the working machine C has a seedling planting transmission case 34 as a machine frame, a seedling placing table 35 that reciprocates left and right, and a planting device 36 in which a planting tool is attached to a rotary seedling planting case. The leveling floats 37, 38, 38, etc. are provided, and the left and right middle front parts of the seedling planting transmission case 34 are attached to the vertical links 31 via rolling shafts.

Next, the transmission mechanism will be described. Power from the engine 11 is transmitted via the pulley 15, belt 39, and pulley 17 to the hydraulic pump 16
Shaft 18 on the extension of the transmission shaft of this pump 16,
A pulley 19 extending forward from the side of the engine and fixed to the tip of this shaft 18 is transmitted to an input shaft 20 of the main transmission case 1 via a pulley 21 in which a belt 22 and a main clutch 41 are installed. . Then, a traveling drive shaft 23 that transmits power from the rear side of the main transmission case 1 to the front wheels 6 and the rear wheels 4.
A shaft 24 that drives a rice transplanter as the working machine 11 is projected, and these are configured to be appropriately speed-changed and transmitted. The traveling drive shaft 23 projects into the differential case 7a portion of the front axle case 7 and extends rearward as a rear wheel transmission shaft 23a through the differential. On the other hand, the shaft 24 is temporarily turned on and off in the clutch case 25, is decelerated here, and projects rearward as the PTO shaft 26. From the PTO shaft 26 to the rice seedling transmission case 34 of the rice transplanter, the shaft 42 is rotated. It is designed to transmit power.

In the figure, 43 is a clutch lever, 44 is an auxiliary shift lever, and 45 is a
Is a change lever. 46 is a hydraulic switching valve, which is switched by the vertical movement of the float 37, and the hydraulic cylinder 33
Is operated so that the float 37 is always kept at the ground pressure within a predetermined range.

Reference numeral 47 denotes a planted clutch lever, which is provided on the right side of the engine cover 12, including the other operating lever 48 provided on the left side, and the levers 47, 48 are moved above the cockpit 13 by its operation. Alternatively, it is arranged so as not to project forward so that it does not interfere with various operations.

Reference numerals 49, 49 denote left and right spare seedling mounts, which are provided outside the steps 27, 27 on the left and right sides of the cockpit 13, and their bases are fixed to the vertical frame 3.

Further, as shown in FIG. 8, the cockpit 13 has left and right space portions 13c, 13c between the seat 13a and the backrest 13b,
When the operator turns rearward while sitting on the rear rice transplanter C to perform various operations such as seedling supply operation, the operator's crotch is inserted into the space 13c, and the work posture is changed. It's getting easier.

According to the configuration of the above example, although the engine 11 is arranged at the front-rear intermediate position of the machine body, the bonnet cover is removed from the front portion of the machine body, and the handle support frame 9 is simply provided, Since the mission case 1 is located in the front part of the machine body, the front-rear balance is lost, the front side does not float, and the rice transplanter as the working machine C can be stably towed.
The power from the engine 11 to the main mission case 1 can be easily and conveniently transmitted through the hydraulic pump 16 which needs to be constantly rotated on one side of the engine, and the power to the working machine C side is the side part of the engine. It can be transmitted by the transmission shaft of, and has a balanced transmission structure on the left and right, which simplifies the assembling. In particular, the front and rear belts 39 and 22 make the main mission case 1
Since the power is transmitted to the side, it is possible to easily change the belt.

Then, in particular, if the seedlings on the seedling placing table 35 are running low, the operator stops the vehicle body, takes the seedlings from the spare seedling placing tables 49, 49, faces backward while keeping the seated, and puts his feet on the fender 27a. You can supply seedlings in a comfortable position. In addition, a spare seedling stand
When the seedlings on 49,49 are gone and the seedlings on the seedling placing table 35 are scarce, the front part of the vehicle body is put on the ridges, and the operator can work from the ridges through the step 27 and the auxiliary step 27b which are lower The seedlings can be replenished well and work efficiency is very good.

[Brief description of drawings]

1 is a side view, FIG. 2 is a plan view, FIG. 3 is a side sectional view of an essential part, and FIG. 4 is a riding type rice transplanter according to an embodiment of the present invention. Is a plan sectional view of the main part, FIG. 5 is a transmission mechanism diagram, FIG. 6 is a perspective view of the main part, FIG. 7 is a plan view of the main part, and FIG. 8 is a perspective view of the main part. 1 is a main mission case, 2 is a connecting frame, 3 is a vertical frame, 4 is a rear wheel, 5 is a rear axle case, 6 is a front wheel, 7 is a front axle case, 8 is a steering wheel, 9 is a handle support frame, and 10 is Engine stand, 11 is engine, 12 is engine cover, 13 is cockpit, 14 is output shaft, 15 is drive pulley, 16 is hydraulic pump, 17 is input pulley, 18 and 24 are shafts, 19 and 21 are pulleys, 20 Is an input shaft, 22 is a belt, 23 is a transmission shaft, 25 is a clutch case, 26 is a PTO shaft, 27 is a step, 27a is a fender, 27b is an auxiliary step, A is a passenger towing vehicle, B is a lifting link mechanism, and C is Indicates a working machine (rice transplanter).

 ─────────────────────────────────────────────────── ─── Continuation of the front page Judgment panel Judgment chief Kunihiko Takahashi Judge Toshiaki Tsukiyama Judge Yoshikazu Iguchi (56) Bibliography 59-154468 (JP, U)

Claims (1)

[Claims] 1. A working machine C is mounted on a rear portion of a riding type vehicle body A having a cockpit 13 at an upper portion of a vehicle body and having left and right wheels 4, 4 at a rear lower portion of the vehicle body outside of the cockpit 13. In this riding type work machine, a step 27 is provided at least in front of the cockpit 13 of the riding type traveling vehicle A, and the fenders 27a, 27a of the left and right rear wheels 4, 4 are continuously provided at the rear end of the step 27. Provided,
A riding type working machine characterized in that steps are formed on the upper surfaces of the fenders 27a, 27a so that the rear part is higher than the front part.