JPH035285A - Riding type working machine - Google Patents

Abstract

PURPOSE:To reduce the lateral width of a machine body by arranging a control panel below a control handle, supporting the panel high a post erected on a step floor, and setting the lateral width of the post smaller than the panel. CONSTITUTION:The upper part from the side of an engine is covered with an engine cover integral with a step floor 8, and a seat 4 is installed on the above side. Before the seat 4, a control handle 10 is arranged and connected to the upper end of a steering shaft extending upwards from a steering case. In this case, a control panel 33 is arranged below the handle 10, and this is supported to a post 34 erected on the step floor 8. A the upper face of the panel 33 and near the same, various control levers 37-40, 43 are arranged. The lateral width of the post 34 is set smaller than the panel 33.

Description

[Detailed description of the invention] [Industrial application field] This relates to a riding type work machine.

[Prior Art] In a conventional riding type work machine, a step floor serving as a foothold for the operator is provided at least around the lower part of the operating handle, and an operating panel with various operating levers arranged below the handle; Some were equipped with posts that supported them from the floor.

[Problems to be Solved by the Invention] Riding-type work machines are used in various work environments, and it is desirable that the machine body itself be small. However, when trying to downsize,
There were some areas where it was impossible to downsize the aircraft from the viewpoint of maneuverability and comfort for the operator. In particular, in conventional riding-type work machines, pedals for brakes, clutches, etc. are placed on the left and right sides of the post that supports the operation panel, so the left and right ends of the machine inevitably end up outside of the pedals, causing the left and right edges of the machine to There was a limit to how small the width could be made.

[Means for Solving the Problems] In order to solve the above-mentioned problems, the present invention provides a step floor 8 serving as a foothold for the operator, which is provided at least around the lower part of the operating handle 1o. An operation panel 33 on which various operation levers are arranged,
A post 34 is provided to support it from the floor 8,
Moreover, the horizontal width of the post 34 is equal to the width of the operation panel 33.
This riding-type work machine is characterized by being smaller than the width of the machine.

[Effects of the Invention] In this invention, the horizontal width of the post 34 that supports the operation panel 33 is made smaller than that of the operation panel 33, so that the clutch pedal 46 and the brake pedal disposed on the left and right sides of the post 34 can be placed in the space created thereby. By allowing the pedals 47a, 47b, etc. to fit in and disposing these pedals further inside, the horizontal width of the aircraft body can be reduced, making it possible to further downsize the aircraft.

[Embodiment] Taking up an agricultural machine as a riding-type working machine, an embodiment of the present invention, particularly for a riding-type rice transplanter, will be described in detail based on the drawings.

1 is a passenger towing vehicle that is towing 1lI2 for seedling transplanting work on J&.

Reference numeral 3 denotes an engine, which is installed below the seat 4 on the fuselage frame 7 that connects the rear axle 5 and the transmission 6. The upper side of the engine 3 is covered with an engine cover 9 that is integrally provided with a step floor 8. The seat 4 is provided on its cover 9.

Reference numeral 10 denotes a steering handle, which is arranged in front of the seat 4 and a steering gear case 1 fixed to the front of the transmission 6.
The steering shaft 12 is connected to the upper end of a steering shaft 12 extending upward from inside the steering shaft 12 . When the control handle 1o is rotated, the steering shaft 12 is also rotated integrally.

Reference numeral 13 denotes a sub-transmission device, which is disposed on the front side of the steering gear case 11. The sub-transmission device 11 is configured to perform belt transmission between a drive shaft 14 that transmits rotational output generated from the engine 3 and a mission input shaft that inputs power to the transmission 6. In addition, the auxiliary transmission mechanism has pulleys of different diameters stacked on each shaft,
A mechanism that can change the reduction ratio by providing a tension roller that corresponds to the belt placed on these pulleys, and further providing a mechanism in which the tension roller selectively applies tension to the belt so that it is in a transmission state or a non-transmission state. It has become. In addition, the drive shaft 14 from the engine 3
In the middle of the belt transmission between the transmission input shaft and the transmission input shaft, a counter pulley installed on the shaft that transmits power to the hydraulic system is arranged to rotate in conjunction. The power transmitted to Mission 6 is transmitted to the travel and work equipment systems.

Reference numeral 15 denotes a front wheel, lower cases 16b, 16b of the front wheel transmission case vertically arranged on both left and right sides of the transmission case 6.
It is mounted on a shaft. The speed is reduced in the transmission 6, and the rotation is transmitted to the left and right front wheels 15.15 via the differential gear and the transmission mechanism in the front wheel transmission cases 16a, 16b. Further, the front wheels 15.15 are provided as steering wheels so as to be rotatable left and right. That is, the lower front wheel transmission case 16b is rotatably provided with respect to the upper front wheel transmission case 16a fixed to the transmission case 6.
A knuckle arm 17 that rotates in conjunction with the rotation of the control handle 100 is connected to the lower case via a rod 18.
．． 15 is designed to rotate.

Reference numeral 19 denotes a rear wheel, which is mounted on a shaft behind rear wheel transmission cases 20 and 20 provided on both left and right sides of the rear axle 5. Power is transmitted from inside the transmission 6 to the rear axle 5 via the transmission shaft 21, via the differential device inside the rear axle 5, through the transmission mechanism inside the rear wheel transmission case 20.2°, and then to the left and right rear wheels 19.
, 19, the rotation is transmitted.

21 is a hydraulic piston. The base side of the hydraulic cylinder of the hydraulic piston 21 is pivotally supported on the rear part of the rear axle 5, and the tip of the piston rod is located near the base of the upper link 22a of the lifting links 22a and 22b that connect the towing vehicle 1 and the work equipment 2. It is pivoted. As oil flows into and out of the cylinder of the hydraulic piston 21, the piston rod protrudes and retires, and the lifting links 22a, 22
b moves up and down using the tow vehicle 1 side as a rotational fulcrum, and the working machine moves up and down.

The elevating link includes an upper link 22a made of - wide leaf springs, and a lower link 2 made of - steel squares.
2b is connected as a link rotation fulcrum to the towing vehicle side link base 23 fixed to the towing vehicle 1 side carrier case 5,
A work machine side link base 24 is connected to the work machine 2 side and supports the work l112 so as to be able to freely roll left and right.

Reference numeral 25 denotes a work machine transmission shaft, which is a shaft that transmits the rotational power of the PTO shaft taken out from inside the mission 6 to the drive shaft of the work machine 2 via a universal joint.

Reference numeral 26 denotes a seedling stand, which is supported for planting on rails fixed to a transmission case 27 so as to be slidable left and right. The seedling mounting table 26 is moved by the left and right reciprocating mechanism inside the transmission case 27.
moves back and forth from side to side, and supplies seedlings one by one to the planting device 28 in accordance with the planting cycle.

The transmission device 28 is attached to the rear side of the transmission frame 29 that extends rearward from the transmission case 26, and transmits the power of the transmission case 26 via a chain transmission mechanism within the frame 29. is being communicated. The planting device 28 is composed of a rotating case 30 and two planting tools 31 and 31 attached thereto. These two planting tools 31 and 31 move in an elliptical trajectory by the rotation transmission of the gear train inside the case as the rotating case rotates 3 degrees, and move in accordance with the seedling supply from the seedling table 26. Then take seedlings one by one and plant them in the field, allowing them to grow one inch apart.

Reference numeral 32 denotes a soil leveling float, which is suspended from the lower side of the transmission frame 29, and slides while leveling the ground in the field.

Reference numeral 33 denotes an operation panel, which is disposed below the operation handle 1o and is supported by a post 34 which is provided upwardly from the step floor 8, which serves as a foothold for the operator. On the upper surface of the operation panel 33 and in its vicinity, as shown in FIG.
, a main gear shift lever 43, a meter, a display window 44 such as a warning lamp, and other various operation levers are provided, and the steering shaft 12 of the control handle 10 passes through it.

A step surface that serves as a foothold for the operator on the step floor 8 that is integrated with the seat 4 extends from around the seat 4 to around the base of the post 34 on the front side, so that the operator can also stand around the control handle 10. It has become. Therefore, the operator can get on and off not only from the boarding steps 45 provided integrally with the step floor 8 below the left and right sides of the seat 4 of the towing vehicle 1, but also from the front side of the towing vehicle 1. For this purpose, front riding steps 46 are provided on both left and right sides of the front of the tow vehicle 1, and also serve as balance weights under the floor 8 extending around the base of the post 34, and the bases thereof are fixed to the transmission 6. There is.

As shown in FIG. 2, the post 34 is provided so that its horizontal width is smaller than the width of the operation panel 33. In the space created thereby, on the left and right sides of the post 34, from the step floor 8 surface below the operation panel 33, the clutch pedal 47, the left and right rear brake pedals 48a, 48b,
A differential lock pedal 49 is arranged to fit inside.

As a result, the horizontal width of the towing vehicle 1 can be reduced, making it possible to further downsize the towing vehicle 1. Also, post 34
As shown in Figure 4, inside the operation panel,
Alternatively, lever operation transmitting devices such as wires and rods connected to various operation levers arranged around the steering shaft 12 are passed through the narrow space.

[Brief explanation of drawings]

FIG. 1 is a side view showing one embodiment of the invention, FIG. 2 is a front view thereof, FIG. 3 is a side sectional view showing the main parts, and FIG. 4 is a plan view showing the main parts. In the figure, 8 is a step floor, 10 is a control handle,
33 is an operation panel, and 34 is a post. Name of patent dispatch university Representative of Iseki Agricultural Machinery Co., Ltd. Eihisa Mizuta

Claims (1)

[Claims] A step floor 8 serving as a foothold for the operator is provided at least around the lower part of the operating handle 10, and below the handle 10 there is an operating panel 33 on which various operating levers are arranged, and a post that supports it from the floor 8. 34, and the horizontal width of the post 34 is smaller than the width of the operation panel 33.