JPS6335032Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a riding-type tailor that reduces the burden on the operator.

Conventional tailors all require workers to walk while performing various tasks, which has the disadvantage of placing a heavy burden on the workers. In addition, riding tractors are available to reduce the burden on such workers, but conventional tractors have a large body shape and weight, and are also expensive, so the emergence of a small, lightweight, and inexpensive riding tractor is desired. It was rare.

The present invention has been made to satisfy these demands, and aims to provide a tailor equipped with a passenger seat that can reduce the burden on the worker without impairing the lightness of the tailor.

The present invention will be described in detail below based on an illustrated embodiment.

In the figure, the center of a front axle beam 2 extending in the left-right direction is pivotally attached to the front end of a frame 1 formed of a steel material with a box-shaped cross section and extending in the front-rear direction through a pin (not shown) so as to be able to swing vertically. Steering wheels 4, 4 are pivotally attached to both left and right ends of the axle beam 2 via steering knuckles 3, 3.

A transmission 5 is fixed to the rear end of the frame 1,
Driving wheels 7, 7 are attached to the tips (outer ends) of axles 6, 6 with hexagonal cross sections extending left and right from this transmission 5, respectively.
It is attached removably. Incidentally, by providing lugs made of rubber or the like on the outer peripheries of the drive wheels 7, 7, sufficient traction force can be obtained. An engine 8 is mounted in the center of the frame 1 in front of the transmission 5, and the output shaft of the engine 8 and the input shaft of the transmission 5 are interlocked via a power transmission case 9. 10
1 is a fuel tank, 11 is a main shift lever, and 12 is an auxiliary shift lever.

On the other hand, a steering column 13 is fixed upright to the front end of the frame 1, and a steering shaft 14 is pivotally attached to the frame 1 via the column 13. The steering column 13 is made of pipe material or the like, and the steering shaft 14
A steering arm 15 is connected to the lower end of the steering shaft 14.

Further, a pitman arm 16 is pivotally attached to the front end of the frame 1 so as to be rotatable left and right, and the steering arm 15 and the pitman arm 16 are connected via a rod 17, so that when the steering shaft 14 rotates, the pitman arm 1
6 swings from side to side. Then, by interlocking the knuckle arms 18, 18 fixed to the left and right steering knuckles 3, 3 and the pitman arm 16 via tie rods 19, 19, when the steering shaft 14 is rotated, the left and right steering wheels 4, 4 rotates.

A stay 20 extending rearward is provided at the upper end of the transmission 5 fixed to the rear end of the frame 1, and a passenger seat 23 is attached to the upper surface of the rear end of the stay 20 via a pin 21 and a spring 22. . Furthermore, a handle bracket 24 is fixed to the upper end of the steering shaft 14, and a loop handle 25, which is made of pipe material or the like and whose width gradually increases toward the rear, is fastened to the handle bracket 24 with bolts 26. By being fixed, the rear end portion of the handle 25 extends above the engine 8 to above the front portion of the passenger seat 23.

A support post 27 having the same cross-sectional shape as the frame 1 is fixed to the rear of the steering column 13 provided at the front end of the frame 1, and a plate 29 is provided with the support support 27 and a hitch fitting 28 for mounting the work machine fixed to the front side. are connected in a parallelogram via left and right upper links 30, 30 and lower links 31, 31. Then, after making the plate 29 protrude in front of the steering wheels 4, 4, the upper link 3
0 and the lower end of the support column 27 are connected via a hydraulic cylinder 32, and by operating a control lever 34 provided on a hydraulic pump 33 to extend and retract the hydraulic cylinder 32, it is configured as an upper and lower link. The raised and lowered link 35 raises and lowers the plate 29 so that the height above the ground of various working machines (not shown) attached to the hitch fitting 28 can be changed. Further, the ends of support shafts 36, 37, 38, which form the connection parts with the upper and lower links 30, 31 and the hydraulic cylinder 32, are respectively projected from both sides of the column 27, and by changing the amount of this projection, the lower part can be adjusted. Interference between the hydraulic cylinder 32 and the lower link 31 is avoided by making the left and right widths of the links 31, 31 narrower than the left and right widths of the other links. 39 is a hydraulic hose.
40 is a power transmission case for interlocking the hydraulic pump 33 and the engine 8; 41 is a step to which a clutch pedal, a brake pedal, etc. (not shown) are attached, and is designed to cover above the axle 6.

42 is a rear hitch attached to the lower end of the rear surface of the transmission 5, to which a working machine or the like can be attached.

The present invention has the above-mentioned configuration, and when changing the traveling direction of the aircraft, the loop handle 25 is rotated. Then, the steering shaft 14 connected to the handle 25 via the handle bracket 24 rotates to rotate the left and right steering wheels 4, 4, thereby changing the direction of movement of the aircraft.

The rotation angle of the loop handle 25 and the steering wheel 4,
The rotation angle of No. 4 is proportional to a certain ratio determined by the lever ratio of the steering arm 15, Pittman arm 16, and Knuckle arm 18, and the steering operation force is proportional to the lever ratio and the steering arm 1.
5 and the loop handle 25.

On the other hand, the relatively heavy engine 8 is mounted in the center of the frame 1, the transmission 5 is provided at the axles 6, 6, and the passenger seat 23 is attached to the rear end of the vehicle body, so that the weight of the machine is reduced. Even if it is small, it is possible to secure the axial load of the steering wheel and sufficiently increase the axial load of the driving wheel to generate stable traction force. Good front-rear balance can be maintained to ensure maneuverability and stability during work.

Furthermore, loop the handle 25 above the engine 8.
This reduces the possibility that objects falling from above will directly hit the engine.
For this reason, it is no longer necessary to attach a cover to the engine 8, which improves the inspection workability of the engine 8.
This has the advantage of improving maintenance work efficiency and reducing weight at the same time.

In addition, since the handle 25 is constructed with a loop handle, it can be operated with one hand even when steering left or right, making not only normal direction changes but also reversing operations easier than conventional round handles. It is also possible to operate the work machine with the other hand while doing so.

As explained above, according to the present invention, it is possible to provide a ride-on tailor with the same nimbleness as conventional walking-type tailors, so that it can be used not only for various normal tasks but also for ridge maintenance, which was only possible with walking-type tailors. You can also work comfortably.

[Brief explanation of the drawing]

Fig. 1 is a schematic side view of one embodiment of the present invention;
The figure is a plan view of Fig. 1, Fig. 3 is a plan view of the steering link, Fig. 4 is a plan view of the elevating link, and Fig. 5 is a plan view of the elevating link.
The figure is a front view of FIG. 4. DESCRIPTION OF SYMBOLS 1... Frame, 3... Nutsuru, 4... Steering wheel, 5... Transmission, 6... Axle, 7... Drive wheel, 8... Engine, 14... Steering shaft, 15... Steering arm , 16... Pitman arm, 17... Rod, 18... Knuckle arm, 19... Tie rod, 20... Stay, 23... Passenger seat, 24... Handle bracket, 25... Loop handle, 28... Hitchi metal fittings. 32...Hydraulic cylinder, 33...Hydraulic pump, 34...Control lever, 35...Elevating link.

Claims (1)

[Scope of utility model registration request] a pair of left and right steering wheels mounted on the front end of the frame; an engine mounted in the center of the frame; a transmission mounted on the rear end; and a pair of left and right driving wheels mounted on wheels extending left and right from the transmission;
A passenger seat provided on a stay extending rearward from the upper end of the transmission, a steering shaft provided at the center of the front end of the frame, a steering link that interlocks the shaft and the steering wheel, and a steering link provided at the upper end of the steering shaft. a loop handle extending above the engine and above the front of the passenger seat; an elevating link for attaching a working machine attached to the front end of the frame so as to protrude in front of the steering wheel; and the link. A riding type tailor equipped with a hydraulic cylinder that raises and lowers the vehicle.