JPH04135987A - Running body for passenger - Google Patents

Abstract

PURPOSE:To enable assembly works to be performed by one worker in most cases by constituting a step cover covering the upper section of a chassis to be divided into paired right and left cover members along the side-to-side center of a body. CONSTITUTION:A step cover 202 is composed of step cover members 202L and 202R each of which is one half of the step cover divided along the side-to- side center line of a body while being symmetric to right and left. Each step cover member is formed with a recessed section 205 in which an engine is housed, a recessed section 206 in which a steering post and the like are housed, a cut-out section 207 through which a differential lock pedal is separately penetrated, and with a cut-out section 208 through which the post of a fertilizing frame is penetrated. And the step cover members 202L and 202R are assembled in while being fixed onto each stay provided for frames, as they are divided into two along the side-to-side center line of the body, the respective step covers 202L and 202R can thereby be set in specified assembling positions while being slid horizontally from the side of the body when they are assembled in.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to the structure of a stay and a cover that cover the upper part of a chassis in a passenger vehicle body such as a rice transplanter.

[Prior Art] A passenger vehicle body for an agricultural machine is widely used, in which a step cover covering the upper part of the chassis is provided, and the upper surface thereof is used as a floor for operation. Most of the step covers for this type of passenger vehicle body were molded from one piece. One of the advantages of the traveling vehicle body having the above structure is that the number of parts for the cover can be reduced in this way.

[Problems to be Solved by the Invention] However, the single-piece molded step cover has a large volume and is difficult to handle by humans. In addition, since the step cover must be assembled to the frame by covering it from one side of the chassis, two workers are required to hold both left and right sides of the step cuff for one assembly operation.

[Means for Solving the Problems] In order to solve the problem L, the present invention has the following configuration.

That is, in the passenger vehicle body according to the present invention, a step cover is provided to cover the upper part of the chassis, and the upper surface thereof is used as a steering floor, in which the step cover is formed to be splittable near the left and right center portions of the vehicle body. It is characterized by being sharp.

[Function] By dividing the step force into left and right halves at the dividing plane that passes near the left and right centers of the vehicle body, each step cover member becomes smaller and lighter, making it easier for even a person to handle. Become. Furthermore, since the individual step cover members can be attached to the frame by horizontally sliding them from both the left and right sides, the assembly work can be performed by just one person, improving work efficiency.

[Embodiment] Each figure shows one embodiment of the present invention, and this passenger vehicle body 2 has a six-row planting section 4 attached to a link device 3 provided at the rear of the vehicle body, and IP! A stirrup 5 is provided, and the entire machine is configured as a riding fertilizing rice transplanter 1.

The running vehicle body 2 includes a rectangular frame 6 that is long in the front and rear when viewed from above, and an engine 1 is installed at a position near the rear of the middle part of the frame.
0, and a mission case 11 is disposed in front of it. The transmission case 11 has a hydraulic pump 12 integrally assembled on its rear upper surface, and a steering post 13 protrudes in the L direction from its front part. A front wheel support case 14.14 is provided on the side of the transmission case 11 so as to be able to change direction, and a front wheel 15.15 is pivotally supported at the lower end of the case 14.14.

Additionally, a rolling shaft 16 protruding from the rear end of the frame 6 is provided.
A rolling rod 17 is supported so as to be able to roll left and right, and a rear wheel support case 18.1 is attached to both left and right ends of the rolling rod 17.
A rear wheel 19.19 is pivotally supported on 8. A cockpit 21 is installed above the engine IO. Furthermore, as shown by chain lines in FIGS. 1 and 2, spare seedling frames 22, 22 for holding spare seedlings can be attached to the front sides of the vehicle body.

The engine output taken out to the engine output shaft 10a is transmitted to the hydraulic pump drive shaft 12a via the belt 23,
Furthermore, it is transmitted from the hydraulic pump drive shaft to the mission input shaft 11a via the belt 24. The pulleys 25 and 26 on which the belt 24 is hung are configured to be able to adjust the width of the belt groove, and by adjusting the width of the belt groove, the effective diameter d,
By changing d2, the transmission ratio can be continuously changed. That is, the transmission gJ portion from the hydraulic pump drive shaft 12a to the mission human power shaft 11a is configured as a sub-transmission HA of a belt continuously variable transmission type. As an operating mechanism of this sub-transmission WA, a sub-transmission shaft 31 is supported horizontally on a support stay 30 assembled integrally with a steering post 13, and a sub-transmission lever 33 and a sub-transmission arm 34 are fixed to the sub-transmission shaft. Furthermore, two rods 36 and 37 are attached to the tip of the sub-transmission arm 34, and chics 38 and 39 for individually driving the pulleys 25 and 26 are provided at the lower ends of these rods. Therefore, by operating one sub-shift lever 33, the belt 24
The effective diameters d, d2 of the two are adjusted at the same time.

FIG. 6 is an exploded view of the inside of the mission case 11, showing the casing 40 from the mission input shaft 11a.
The power is transmitted through the inner clutch shaft 42 and the main clutch 43. The main clutch 43 is a well-known multi-plate clutch.
In the figure, 44 is a friction plate on the engine side, 45 is a friction plate on the transmission side, 46 is a spring for pressing both friction plates, 47
．． 48 is a fixing member and a sliding member for cutting operation. A clutch operating shaft 50 is provided horizontally on the support stay 30, and an arm 51 fixed to the operating shaft and an arm 48a protruding from the sliding member 48 are connected by a rod 52. In addition, the clutch operating rod 54 curved in an arched shape is connected to the operating shaft 5.
A clutch pedal 55 is provided at the lower end of the clutch operating rod.

Inside the front casing 40a, there is a clutch shaft 42, a counter shaft 60, a traveling secondary shaft 61, a secondary traveling shaft 62, and a planting shaft.
A secondary shaft 63 and a secondary planting shaft 64 are each supported in parallel. The gear G1 of the clutch shaft 42, the gear G2 of the counter shaft 60, and the gear G2 and the gear G of the travel-next shaft 61.
3 are in mesh with each other, and the rotation of the clutch shaft 42 is transmitted to the travel-next shaft 61 in the forward direction. As the main transmission B, the gear G3 and the gear G4 are respectively fitted in fixed positions on the traveling and secondary shaft 61, and the gear G5. G6 is fitted to be slidable in the axial direction. Gear G5 with shifter 66. Move G6,
When the gears G4 and G5 are engaged, the operating speed is set, and when the gears G3 and G6 are engaged, the operating speed is set to the road running speed. In addition, a gear G7, a bar, and a back gear G8, which are always engaged with the gear G4, are fitted to the planting-next shaft 63, and the gear G6 is connected to the back gear G8.
When engaged, it becomes thrusting speed. Gear G5. The position where G6 does not mesh with any gear is neutral.

Further, as the inter-plant transmission device C, a gear G9. The GIO is fitted to be slidable in the axial direction, and the gear Gl is fitted to the secondary planting shaft 64.
1 and G12 are installed. shifter 6
Gear G9 at 7. By moving G10 appropriately,
Gear G9 and gear G11, gear GIO and gear G11. And three combinations of gear GIO and gear G12 are obtained,
You can switch between stocks in three stages. From the planting secondary shaft 64 to the bevel gear G13. The power is transmitted to the planting portion transmission shaft 68 via G14.

Inside the rear casing 40b! ±Rear axle 70.7
0 and the front axle 71.
0.70, and is also transmitted from the rear wheel differential device to the front axle 71.71 via the front wheel differential device ME. The rear wheel differential device is connected to the gear G of the secondary traveling shaft 62.
A container 7 in which a gear G16 meshing with G15 is molded on the outer periphery.
3, and a secondary bevel gear G17 attached to the vertical shaft 74 in the container, and secondary bevel gears G18.3 attached to the left and right rear axles 70. G18 are housed in a state where they mesh with each other, and the driving force transmitted to each axle is appropriately varied depending on the load applied to each axle.

The front wheel differential device E also has the same configuration as the rear wheel differential device. In the figure, 75 is a container, 76 is a vertical shaft, G19 is a gear on the rear wheel differential device side, G20 is a gear on the front wheel differential device side, and G21 is a vertical shaft. axis 7
G22 is a bevel gear attached to the front axle 71.

The rear wheel differential device L and the front wheel differential device E are provided with differential lock devices 77 and 78 that completely stop the f7 function and allow driving force to be transmitted equally to the left and right axles. This differential lock R77 (78) is a container 73 (74).
) and the square rod part 70 of the axle.
The container 73 (74) and the axle 70 (71) are fixed to each other by engaging the claws 83 (84) of the differential lock member 81 (82) that fits into the a (71 a). As shown in FIG. 7, a lever 87 (88) is horizontally attached to a shaft 85 (86) for operating the differential lock member, and a defroster pedal 89 (90) extends upward from the tip of the lever. , the shaft 85 is provided higher than the shaft 86, and the end 91 of the pedal rod 89a protrudes from the side of the lever 87 and engages with the upper surface of the lever 88, so that the rear wheel When the differential lock pedal 89 is depressed, both the rear wheel differential lock device 87 and the heavy wheel differential lock device W88 are activated. The deflo 2 cubicles 89.90 are arranged in parallel in the lower front part of the cockpit 21.

Rear axle 70.70 has bevel gear G23°G24.
The rear wheel support case 18.1 is transmission connected to the rear output shaft 93.93 in the front-rear direction by..., and the rear wheel support case 18.1 is connected to the rear end of the rear output shaft 93.93 protruding outside the casing.
Rear wheel transmission shafts 94 and 94 that transmit power to the rear wheels 8 and 8 are connected via uni/hesal joints 95 and 95.

Also, at the end of the rear axle 70.70, there is a disc 100. attached to the rear axle. t.

Rear wheel brakes #MF, F are provided which press pressure plates 101, 101 on O for braking. An axial notch 102 is formed on the outer circumferential surface, and an actuation bin 103 is provided parallel to the pressure plate lol.Although the notch 102 of the actuation bin 103 is normally in contact with the pressure brake 101, the lever 104 When the operating bin 103 is rotated and the circumference of the operating bin 103 is brought into contact with the pressure plate ioi, the pressure plate 101 is pressed against the disk 100 side and the brake is activated. The brake pedals 105, 105 of the t & wheel brake devices F, F are attached to a brake shaft 106 coaxial with the clutch pedal 5
Like 5, it is installed in a suspended state.

The planting portion transmission wheel 68 extends rearward, and a planting clutch case 110 is provided at its rear end. As shown in FIG. 8, inside the planted clutch case 110, a primary shaft 111 connected to the planted portion transmission shaft 68 and a secondary shaft 112 which is a PTO shaft are supported in parallel with each other. -The next shaft 111 has a gear G25. Cylindrical gear shaft 1 with G26
15 are slidably fitted, a claw plate 116 fitted to the square bar portion 111a and a claw plate 11 fixed to the gear shaft 115.
Torque is transmitted from the primary shaft 111 to the gear shaft 115 via 7. At all times, both claw plates 11 are held together by the action of spring 11g.
6 and 117 are engaged, but when the torque exceeds a certain level, the gear shaft 115 moves to the right in the figure against the force of the spring 118, and the transmission is cut off. That is,
It is configured as a safety clutch that cuts off transmission when the load exceeds a certain level.

A rotatable cylindrical shaft 120 is loosely fitted to the secondary shaft 112, and a gear cylinder 121 having gears G27 and G28 that mesh with the gears G25 and G26 slides in the axial direction on the outer circumference of the cylindrical shaft. They fit together freely.

Shifting is performed by moving the gear cylinder 120 with the speed change switch 123 and switching the meshing relationship between the gear shaft 115 and the gear cylinder 120. When gear G25 and gear G27 mesh, subsequent transmission is performed, and gear G26 and gear G28
When the two mesh, low-speed transmission occurs.

The torque of the cylindrical shaft 120 is transmitted to the secondary shaft 112 via the fixed position clutch plate 125. The fixed position clutch plate 125 is non-rotatably but slidably fitted to the secondary shaft 112, and is biased toward the cylinder shaft 120 by a spring 126. During zero operation, the fixed position clutch plate 125 is in a fixed position with the claw 120a of the cylinder sleeve. The pawls 125a of the clutch plate are engaged, but when the work is stopped, the clutch pin 127 is in the fixed position and the clutch plate 125 is engaged.
The secondary shaft 112 is stopped at a predetermined angle.

Further, a fertilization drive shaft 131 is provided parallel to the secondary shaft 112, and a gear G2 is connected to the fertilization drive shaft 131 from the secondary shaft 112.
9. G30. It is transmitted via G31.

The cover of the traveling vehicle body 2 is divided into an engine cover 200 that covers the top i of the engine io, a steering post cover 201 that covers the outer periphery of the steering post 13, and a step cover 202 that extends around these. Of these, the step cover 202 is formed into a stepped shape in which the height increases in the order of a front part 202a, a middle part 202b, and a rear part 202c. It serves as a passageway for the pilot to board the aircraft. Further, the rear part 202c is a fertilizer application device 5.
II? It serves to prevent fertilizer spilled from the hopper 180 from falling and adhering to the engine 10, link device 3, etc. step cover 2
As shown in FIG. 3, 02 is a symmetrical step cover member 202 (
L), 202(R), each with engine 1
0, a recess 206 for accommodating a steering post, etc., and a notch 207 for passing a differential lock pedal 89, 90, respectively. In addition, a notch m208 is provided through which a post 183 of a fertilization frame, which will be described later, is passed. Stay, pukaba one member 202 (L).

202(R) is fixedly assembled to the stay provided on the frame 6, but since it is divided along the left and right center line of the vehicle body, when assembling it, each step cover member 2
02 (L) and 200 (R) can be horizontally slid ξ from the sides of the vehicle body to set them at predetermined assembly positions. It should be noted that the step cover 202 does not need to be divided exactly along the left and right center lines, and may be divided appropriately for convenience in assembly. Step cover member 202 (L), 20
When removing the step cover 2(R), the step cover is provided so that it does not get in the way when the step cover member is slid sideways as shown by the chain line in FIG.

As the link device 3, one upper link 141 and two lower links 141.141 are rotatably supported on a link base frame 140 erected at the rear end of the frame 6, and the rear ends of these upper and lower links are A connecting frame 144 is attached to. A rolling shaft 145 protruding rearward from the connecting frame 144
The planting part 4 is rollably attached to the. The hydraulic cylinder 147, which is a driving means of the link device 3, has a base pivotally attached to the frame 6, and a tip end of a piston rod connected to a lower end of a swing arm 148 hanging from the base of the upper link 141. When the hydraulic cylinder 147 is expanded or contracted, the connecting frame 144 is moved up and down while being maintained in a constant posture, and the planting section 4 attached to the connecting frame 144 is raised.

The planting section 4 includes a transmission case 150 to which the traveling vehicle body 2 is transmitted via the PTO skil 2, and transmission pipes 151 and 151 protruding from both side surfaces of the transmission case.
The center part of the transmission case 150 and the transmission pipe 151,1
Three chain cases 1 extending rearward from both ends of 51
52. . . . The planting section frame is completed, and each chain case 152.・-・Plant 6 groups in total, 1 group on each side of the rear end! 154°... is provided. Planting device 154. To the north of . The upper surface of the seedling tray 155 is divided into seedling trays 155a, . Device 161. ...is provided. Further, at the lower end of the seedling stand 155, a planting portion N154. Seedling outlet 162 corresponding to... ... is formed integrally with the support frame 157. The seedling platform 155 reciprocates left and right to sequentially supply the seedlings on the platform to the seedling outlet 162, and the planting section! A pair of ridged rods 154 of t154
a, 154a performs a closed loop M movement while drawing a predetermined trajectory, and alternately holds the seedlings supplied to the seedling outlet 162 and plants them in the field. Seedling stand 15
5 reaches the end of the left and right path and takes out one horizontal row of seedlings 1
Once the supply to Ko 162 is complete, it's time to send the seedlings! 161.・・−
is activated and moves the hundred down one column.

Below these planting parts 4, there is one center float 170 in the center and a pair of left and right side floats 171.171.
is provided. Each float 170.171.171
Grooving device 172 for forming grooves for seedling transplantation on both sides of the.・・・
・is installed.

These floats are attached to the chain case 152. ...Float support rod attached to -173. The front part is pivotally supported to the rear end of .-- for vertical movement. center float 170
A detection rod 174 for vertical movement detection is attached to the front part of the cylinder, and a hydraulic valve 175 for controlling the hydraulic cylinder 67 is driven based on the detection result of the detection rod.
For example, when the center float 170 moves upward due to the height of the field, the hydraulic valve 175 is driven in the direction in which the hydraulic cylinder 147 moves, and as a result, the planting section 4 rises.

When the field level becomes low, the operation is reversed to that described in I-.

The fertilizer application device z5 includes a hopper 180 that stores fertilizer, a feeder 181 that feeds out the fertilizer in the hopper in the F direction, and a fertilizer feeder that guides the fertilizer fed out from the feeder to the transplanting groove formed by the groove creator 172. A pipe 182 is provided. The hopper 180 is shared by two adjacent rows, and a total of three main body parts each consisting of one hopper 180 and two feeders 181, 181 are supported on the link base frame 60 by support columns 183, 183. It is attached to a fertilization frame 184 made of a rectangular vibrator, and is arranged in a space between the driver's seat 21 and the seedling stand 155 when viewed from the side. Each feeder 181
．． ... are driven by a feed-out roll drive shaft 185 that is transmitted from the fertilization drive shaft 131. Also, a blower 187 is installed in the engine room.
is provided, and this blower 187 is connected to the hollow part of the fertilization frame 184 by an air pipe 188, and
Fertilizer pipe 182. ...The starting end of - is the fertilization frame 18
It is installed with an opening in the hollow part of 4. In this way, the warm air in the engine compartment is transferred to the fertilizing vibe 182.
By supplying fertilizer to ..., the distribution of fertilizer within the fertilization pipe is improved, and there is an effect of preventing the fertilizer from solidifying within the fertilization pipe.

[Advantageous Effects of the Invention 1] As is clear from the above description, in the traveling vehicle body according to the present invention, the step cover that covers the upper part of the chassis is divided into a pair of left and right cover members along the left and right center of the vehicle body. The individual cover parts are smaller and lighter, making them easier for even people to handle.In addition, each cover member can be attached to the frame by sliding it horizontally from both the left and right sides, making it easier to assemble in many cases. Now I can do the attachment work by myself.

[Brief explanation of the drawing]

Fig. 1 is a plan view of a riding fertilizing rice transplanter which is an embodiment of the present invention, Fig. 2 is a side view thereof, Fig. 3 is a plan view of a step cover, Fig. 4 is a side view of main parts, Fig. 5 6 is a developed sectional view of the transmission case, FIG. 7 is a perspective view of the differential lock device operating section, and FIG. 8 is a sectional view of the planted clutch case. l... Riding fertilizer application rice transplanter, 2... Riding vehicle body, 3...
... link device, 4 ... planting section, 5 ... fertilization device,
lO...Engine 11-...Mission case, 2
1...Controller seat, 200...Engine cover, 201
... Steering post cover, 202 ... Step cover, 202 (L), 202 (R) ... Step cover part.

Claims (1)

[Claims] (1) A passenger vehicle body that is provided with a step cover that covers the upper part of the chassis and whose upper surface is used as a steering floor, characterized in that the step cover is formed to be splittable near the left and right center portions of the vehicle body. Passenger vehicle body.