JPS5839978Y2 - Wet field transport machine - Google Patents

Description

[Detailed explanation of the invention] This invention is suitable for use in wet fields with relatively deep muddy soil, dry fields, grasslands,
Regarding transport equipment used in snowy areas, etc., the rear end of the main frame is connected via a link mechanism to a boat-shaped sliding body for sliding movement on which loads are placed, and the driving wheel and handle are connected to the front end of the main frame. In the structure in which the link mechanism is formed by the front and rear links and the upper and lower links, the front link is fixed to the rear end of the main frame, and the rear link is vertically and bendably connected to the front link via the upper and lower links. At the same time, the rear link is erected and supported on the top surface of the sliding body so as to be tiltable back and forth through a longitudinal tilt adjustment threaded rod, and a passenger seat is provided at the upper end of the rear link. By swinging the upper and lower links and raising the rear link by the floating force of the front part of the sliding body, even if the front part of the sliding body floats up, the traveling drive wheels can be properly maintained on the ground, which is necessary for directly loading cargo. It is possible to stably tow a sliding body having a large ground contact area by the driving wheels, and it is possible to obtain greater buoyancy than the conventional keyaki used as a wheel substitute, thereby improving work efficiency on soft roads such as wet fields. The rear link supporting the passenger seat can be tilted back and forth at any angle by operating the threaded rod, and the sliding body can horizontally support the passenger seat while traveling while tilting back and forth, making transportation and movement in unstable wet fields safe. The purpose of the present invention is to provide a transporting machine for wet paddy fields that can be used in a comfortable posture.

An embodiment of the present invention will be described in detail below with reference to the drawings.

Figure 1 is a schematic side view of the whole, Figure 2 is a plan view of the same,
In the figure, 1 is a catamaran boat-shaped sliding body on which rice seedlings or culms are loaded and slides on a wet field, and 2 is a catamaran boat-shaped sliding body that is connected to the sliding body 1 at one end via a link mechanism 3, which is a vertical vibration absorbing member. A main frame extends forward; 4 is a running drive wheel for wet fields supported by a cylinder shaft 5 rotatably provided at the front end of the main frame 2; 6 is a running drive wheel whose base end is fixed to the cylinder shaft 5; 7 is a passenger seat provided above the link mechanism 3.

The sliding body 1 has its circumferential edge fixed to a rectangular frame 8, and an annular connector 9°9 is provided on one outer surface of the frame 8, and a chain 11 with a hook 10 is attached to the opposite outer surface. A plurality of sliding bodies 1' having the same shape are arranged side by side on the left, right and rear sides of the sliding body 1, and a chain 11 is connected to a nearby connector 9 via a hook 10 as shown in FIG. , the sliding bodies 1 and 1' are connected to each other so that they can be raised and lowered individually, and the number of sliding bodies 1' can be increased or decreased depending on the work.

Further, as shown in FIG. 3, a bearing tube 1 is provided at the front end of the main frame 2.
3 is integrally formed, the middle of the cylinder shaft 5 is rotatably supported by the cylinder 13, and the base end of the needle 6 is fixed to the upper end of the cylinder shaft 5 via a fixture 14.

An anti-rotation pin 15 is fitted into the cylinder shaft 5 and the fixture 14, and a sub-endle 16 shown in phantom lines is removably attached in place of the pin 15 to enable operation on the left and right sides. , the accelerator lever 1 attached to the steering wheel 6
7 and a wire 19.20 connected to the clutch lever 18
is inserted inward from the upper end opening of the cylinder shaft 5.

Further, the lower end of the cylindrical shaft 5 is fixed to the upper horizontal portion of the ]-shaped frame 21, and the hanging end of the frame 21 is fixed to the inclined lower end side of the transmission case 23, on which the engine 22 is mounted on the inclined upper end side.

An axle 24 is provided at the inclined lower end of the case 23.
A driving wheel 4 is attached to the frame 4, and wires 19 and 20 inserted into the cylindrical shaft 5 are passed through the frame 21 and extended to the engine 22.

By fixing the fender 25 to the frame 21 and the transmission case 29, forming the wires 19 and 20 so that they do not contact the driving wheels 4, and changing the direction of the bundle 6, the driving wheels 4 and the engine 22 can be integrally converted. , 1st
As shown by solid lines and imaginary lines in the figure, the drive wheels 4 are reversed forward and backward together with the steering wheel 6, so that forward and backward switching can be performed.

A wire 19 is attached to the cylindrical shaft 5 which rotates integrally with the needle 6.
Since the wires 19 and 20 are inserted in the middle, there is no concern that the wires 19 and 20 will be twisted.

It is also possible to provide a bumper 26 shown in imaginary lines in FIG. 1 to protrude from the bearing sleeve 13 and protect the engine 22 during forward movement.

Further, 27 is a speed change lever, and the transmission case 23 includes a speed change gear (not shown) built therein.

Next, as shown in FIG. 4, the link mechanism 3 includes front and rear links 28, 29, and upper and lower links 30, 31, each of which has a gate-shaped end surface. 31 are connected by horizontal shafts 32, 33, 34, and 35, and the front link 28 is fixed to the rear end of the main frame 2.

In addition, the lower end of the rear link 29 is connected via a pivot 37 to a pedestal 36 provided on the frame 8 portion approximately in front of the center of the sliding body 1, so that the sliding body can swing freely back and forth about the pivot 37. 1 and the frame 8 behind the pedestal 36.
The middle of the longitudinal tilt adjustment threaded rod 39 is screwed onto the upper end of the front tilting column 38 that is erected in the section, and the tip of the threaded rod 39 is connected to the upper back surface of the rear link 29, so that the rear link 29
8 so as to be movable toward and away from the sliding body 1, and configured to keep the longitudinal inclination of the sliding body 1 appropriate.

A passenger seat 7 is fixed to the rear link 29 via support rods 40, 41, and the seat I is attached above the link mechanism 3.

Also, a horizontal shaft 35 connecting the rear link 29 and the lower link 31
A guide plate 44 having an elongated hole 43 is fixed to the other end of the rod 42, and a horizontal shaft connects the front link 28 and the upper link 30. 32 is loosely inserted into the elongated hole 43, and the elongated hole is inserted in the range in which each link 28, 29°, 30. The horizontal shaft 32 slides inside the elongated hole 43 to prevent the front part of the sliding body 1 from descending due to the reaction force of the buoyancy acting on the rear part of the sliding body 1 during backward movement. The horizontal shaft 32 is in contact with one end side, and the vertical link 3
0°31 is maintained substantially parallel (fixed state), and the sliding body 1 is controlled to float and sink to maintain the drive wheels 4 in contact with the ground at an appropriate pressure.

゛Incidentally, a spring 45 that helps control the floating and sinking of the sliding body 1 is incorporated into the ring mechanism 3, and each link 29, 31 is pushed open by the spring 45 as shown in Fig.
It can also be formed so that the front part floats and the front part of the sliding body 1 is prevented from sinking during backward movement, so that the driving wheels 4 can efficiently slide the sliding body 1.

Further, as shown in FIGS. 5 and 6, the drive wheel 4 includes a rubber tire 48 with an air plug 47 wrapped around a rim 46, and a plurality of lug plates 49 mounted at equal intervals on the circumferential surface of the rubber tire 48. A pair of left and right links so, so located on the side surfaces of the rubber tire 48 are welded and fixed to the lug plate 49, and a link 50 of each lug plate 49...
are bendably connected by pins 51...

A hook 52 is formed on the link 50' at one end, and the hook 52 is engaged with the pin 51' of the link 50" at the other end to join the links 50 in an annular shape to form a girdle. Links 50, 50', 50'' are made by integrally forming a rough plate 49 on a rubber tire 48 from which air has been removed in advance.
The hook 52 is engaged with the pin 51', and air is injected into the rubber tire 48 at an appropriate pressure via the air plug 47. The rubber tire 48 is inflated and the lug plate 49
... are formed to protrude at an appropriate angle, and the lug plate 49 that is in contact with the ground is tilted by the ground pressure to obtain the buoyancy and traction force necessary for running in wet fields, etc.

Furthermore, when traveling on a road such as a farm road, the lug plate 49 can be removed and the rubber tire 48 can be used alone. Install the road running wheels 53... and slide the sliding body 1
It is also possible to use it only as a luggage rack.

The present invention is constructed as described above, and when performing agricultural work such as reaping in wet fields or extremely wet fields with relatively deep muddy soil layers, the operator rides into the wet field in the conditions shown in Figs. The operator rides on the vehicle and operates the handle 6 appropriately to tow the sliding body 1. During the reaping work, the cut culms are stacked on the sliding body 1 and the culms are protected from muddy water and the like. In addition to carrying out the husk and simplifying post-work such as threshing, in the rice planting work, rice seedlings are placed on sliding bodies 1 and distributed in wet fields, and rice planting is promptly performed.

In addition, the sliding body 1 can also be towed on dry fields or grasslands in the same manner as described above and used for various works.In winter, the sliding body 1 can be towed over snow and cargo can be carried on the sliding body 1. Can be done.

As described above, since the drive wheels 4 are changed direction integrally with the handle 6, they can be easily supported and it is easy to perform forward and backward operations.

The transmission case 23 supporting the slanted lower end of the case 23 protrudes forward and upward in the forward posture, and the slanted upper end of the transmission case 23 is attached to the engine 22.
The weight is effectively added to the drive wheels 4, and appropriate buoyancy and strong driving force can be obtained by changing the inclination of the lug plates 49.

Furthermore, since the link mechanism 3 is freely displaceable when traveling forward, and the link mechanism 3 is fixed when traveling backward, even if the front part of the sliding body 1 rises due to buoyancy generated in the front part of the sliding body 1 when traveling forward, it will not move. is absorbed by the displacement of each link 28, 29, 30, and 31, and the driving wheels 4 are kept at an appropriate ground height, and when moving backward, the reaction force of the buoyancy generated at the rear of the sliding body 1 causes the front part of the sliding body 1 to sink. Even if it acts as a blade, each link 28.
29, 30, and 31 are fixed by brace rods 42, and the sinking blades at the front of the sliding body 1 are attached to the drive wheels 4 via the main frame 2.

Therefore, the drive wheels 4 can be properly maintained on the ground regardless of the vertical movement of the sliding body 1 due to forward and backward running, and stable running driving force can be obtained.

Next, the handle 6 and the engine 22 are connected via the cylinder shaft 5 etc.
Furthermore, since the driving wheels 4 are integrally connected and fixed, and the middle of the operating wires 19 and 20 stretched between the steering wheel 6 and the engine 22 is inserted into the cylinder shaft 5, inconveniences such as twisting of the wires 19 and 20 are avoided. Without arising...endor 6 to 360
The drive wheel 4 can be reversed forward and backward by rotating the drive wheel 4. Therefore, even when using the drive wheel 4 with a girdle, which has a large number of lug plates 49 protruding from the rubber tire 48, it is possible to easily change the forward and backward movement. This enables efficient transportation work on soft running roads such as snow-covered areas.

In addition, in the embodiment, the link mechanism 3 was used as the vertical vibration absorbing member, but it is also possible to use a buffer member such as an absorber.
It is also easy to use the spring to absorb displacement of the sliding body 1 in one direction (rising of the front part) and fixing displacement in the other direction (sinking of the front part).

As shown in the above embodiments, the present invention connects a main frame 2 to a boat-shaped sliding body 1 for sliding movement on which cargo is placed via a link mechanism 3.
The rear ends are connected, the traveling drive wheels 4 and the handle 6 are attached to the front end of the main frame 2, and the front and rear links 28 are connected.
．． 29 and the upper and lower links 30.31 form the link mechanism 3, the front link 28 is fixed to the rear end of the main frame 2, and the rear link 29 is connected to the front link 28 via the upper and lower links 30.31. The rear link 29 is vertically and bendably connected, and the rear link 29 is erected and supported on the upper surface of the sliding body 1 through a longitudinal inclination adjustment threaded rod 39 so as to be tiltable in the longitudinal direction. It moves up and down due to the floating force of the front part of the sliding body 1 due to the running resistance of mud etc.! By swinging the J/Rs 30 and 31 to raise the rear link 29, even if the front part of the sliding body 1 floats up, the traveling drive wheels 4 can be properly maintained on the ground, which is necessary for directly loading cargo. The sliding body 1, which has a large ground contact area, can be pulled stably by the driving wheels 4, and greater buoyancy can be obtained compared to conventional keyaki wheels, which improves work efficiency on soft roads such as wet fields. The rear link 29 supporting the passenger seat 1 can be tilted back and forth at any angle by operating the threaded rod 39, and the sliding body 1
The passenger seat I can be supported horizontally during travel when the seat is tilted forward and backward, making it possible to transport and move in unstable wet fields in a safe posture.
'It has remarkable effects such as eliminating FC.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention, in which Fig. 1 is a schematic side view of the whole, Fig. 2 is a plan view thereof, Fig. 3 is an enlarged sectional view showing the support structure of the drive wheel, and Fig. 4. 5 is an enlarged sectional view showing the support structure of the sliding body, FIG. 5 is an enlarged side view of the drive wheel, and FIG.
The figure is a partial perspective view. 1... Boat-shaped sliding body, 2... Main frame, 3... Link mechanism (vertical vibration absorption member), 4
・・・・・・Traveling drive wheel.

Claims (1)

[Scope of utility model registration request] A link mechanism 3 is attached to a boat-shaped sliding body 1 for carrying cargo.
The rear end of the main frame 2 is connected via
and the handle 6 are attached to the front end of the main frame 2, and the front and rear links 28, 29 and the upper and lower links 30, 31
In this structure, the link mechanism 3 is formed by fixing the front link 28 to the rear end of the main frame 2, and attaching the rear link 2 to the front link 28 via the upper and lower links 30 and 31.
9 are connected so as to be bendable up and down, and the rear link 29 is erected and supported on the upper surface of the sliding body 1 so as to be tiltable back and forth via a longitudinal inclination adjustment threaded rod 39, and a passenger seat is attached to the upper end of the rear link 29. A transportation machine for wet paddy fields characterized by being equipped with 7.