JPH04215568A - Frame of riding control machine - Google Patents

Abstract

PURPOSE:To have compactness, light weight and improved strength by forming a recess part while curving a machine body frame downwards between front and rear wheels, and mounting transmission gear cases on a curving starting part and terminating part of the recess part respectively. CONSTITUTION:A recess part 8 is formed by bending a left side member 2 and a right side member 3 constituting a frame 1 downwards viewed from a side between front and rear wheels 5, 7. Mounting seats 10, 10 are fixed to the upper and lower faces of a bending starting part 9 of the recess part 8, and a main mission gear case 11 is installed inside the left and right side members 2, 3. Between the left and right side members 2, 3 a reinforcing plate 13 is layed at a bending terminal part 12, and a PTO transmission gear case 14 is mounted.

Description

[Detailed description of the invention]

0001

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a passenger management machine, and particularly to a frame thereof.

0002

2. Description of the Related Art Conventionally, small and lightweight power agricultural machines called riding management machines have been proposed for mainly carrying out light work in agricultural work.

0003

[Problems to be Solved by the Invention] In the above-mentioned passenger management machine, the frame structure must be simplified in order to reduce the weight, but if the material dimensions of the component parts are made thinner, twisting tends to occur, and strength is reduced. There's a problem. Therefore, a technical problem arises that must be solved in order to ensure sufficient strength while making the frame small and lightweight.The present invention aims to solve this problem.

0004

[Means for Solving the Problems] The present invention has been proposed to achieve the above object, and includes providing a recessed portion in the frame of the aircraft body between the front and rear wheels so as to curve downward in side view;
The present invention provides a frame for a passenger management machine characterized in that a transmission gear case is attached to each of the curved start part and the curved end part of the recessed part.

[0005]

[Operation] In this invention, the frame of the aircraft body is curved downward between the front and rear wheels, and a recessed portion is provided to form a central step. Since a transmission gear case is attached to the curved start part and the curved end part of the frame, the strength of the frame is improved.
A lightweight and highly rigid frame can be obtained without providing a large number of reinforcing members in the frame.

[0006]

DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below in detail with reference to the accompanying drawings. 1 and 2 show a passenger management machine. A frame 1 is composed of a left side member 2 and a right side member 3 which are symmetrical and face each other, and an engine 4 is mounted on the front part of the frame 1. The front wheels 5, 5 are pivotally mounted to the lower part of the front wheels. A seat 6 is fixed to the rear of the frame 1, and rear wheels 7, 7 are pivotally mounted to the lower part of the seat 6. A recessed portion 8 is provided between the front wheel 5 and the rear wheel 7 of the frame 1 by curving the left side member 2 and right side member 3 downward in side view. Mounting seats 10, 10, . Further, a reinforcing plate 13 is installed between the left side member 2 and the right side member 3 at the curved end portion 12 of the recessed portion, and a PTO transmission gear case 14, which is a rear transmission gear case, is attached to approximately the center of the reinforcing plate 13.

A main clutch (not shown) is provided in the main transmission gear case 11, and a belt is connected between an input pulley 15 provided on the upper part of the main clutch and an output pulley 16 provided on the lower side of the engine 4. 17 and engine 4
power is transmitted to the main transmission gear case 11. The rear wheel drive output shaft 18 is located at the rear of the main mission gear case 11.
and a rear PTO output shaft 19 are provided protrudingly, and an intermediate shaft 21 is connected to the drive output shaft 18 via a coupler 20 to transmit power to a rear differential gear case 22. Further, a connecting shaft 24 is connected to the output shaft 19 of the rear PTO via a universal joint 23 to transmit power to the PTO transmission gear case 14. In the figure, 25 is a plate frame for mounting the engine, and 26 is a rear axle mounting seat plate.

As shown by solid lines in FIG. 3, the central members 27, 27 of the frame 1 are symmetrical with respect to the recessed portion 8, and there are front members 28 at the front and rear of the central members 27, 27, respectively.
, 28 and rear side members 29, 29 are extended to form a left side member 2 and a right side member 3. FIG. 4 shows a configuration in which steps 28 and 29 are provided on both left and right sides of the frame 1. Step mounting frames 30, 30 and floor mounting frames 31, 31 are protruded from the outside of the left side member 2 and right side member 3, respectively, and steps 28 and 29 are attached to the upper portions thereof. These steps 28 and 29 serve as a floor from the side to the rear of the seat 6. FIG. 5 is a partial perspective view of the step 28, and FIG. 6 is a longitudinal sectional front view of the step 28. The step 28 or 29 is recessed inward from its peripheral edge 32, and this recess 33 is provided with groove-shaped recesses 34, 34 in the front-rear direction. This recess 34 is provided so that the head of the bolt 35 does not protrude above the step 28 or 29 when the step 28 or 29 is attached to the step mounting support frame 30 or the floor mounting frame 31. Then, a floor mat 36 is laid in the recessed portion 33.

[0009] Also, as shown in FIG.
8 and 29 are bilaterally symmetrical, and the front part thereof is diagonally cut out on both left and right sides to form notches 28a, 28b and 29a, 2.
9b is formed. Therefore, the inner notches 28a and 29a of each step serve as a relief for the front body 37 that bulges out due to the main mission gear case 11, and the outer notches 28b and 29b visually improve the aesthetics.

[0010] This invention can be modified in various ways without departing from the spirit of the invention, and it goes without saying that this invention extends to such modifications.

[0011]

Effects of the Invention As described in detail in the above-mentioned embodiment, the present invention provides a recessed portion in the frame, and the transmission gear case is attached to the curved start portion and the curved end portion, so that the transmission gear case is attached to the frame. This structure improves the strength of the frame. Therefore, the number of reinforcing members can be reduced, and a lightweight and highly rigid frame can be provided at low cost.

[Brief explanation of the drawing]

FIG. 1 is a side view showing a frame of a passenger management machine.

FIG. 2 is a plan view showing the frame of the passenger management machine.

FIG. 3 is a side view of main parts of the frame.

FIG. 4 is a plan view showing a frame of the passenger management machine provided with steps.

FIG. 5 is a partial slope view of the step.

FIG. 6 is a vertical cross-sectional view of main parts showing a state in which the step is attached to the frame.

[Explanation of symbols]

1 Frame 2 Left side member 3 Right side member 5 Front wheel 7 Rear wheel 8 Recessed part 9 Curved start part 11 Main mission gear case 12 Curved end part 14 PTO gear case

Claims (1)

[Claims] [Claim 1] A recessed portion is provided in the frame of the aircraft body between the front and rear wheels so as to curve downward in side view, and a transmission gear case is attached to each of the curved start and end portions of the recessed portion. A frame for a passenger management machine.