JPH0144007Y2 - - Google Patents

Description

[Detailed Description of the Invention] "Industrial Application Field" The present invention relates to a rice transplanter, such as a single-wheel walking type, that has wheels in the center of the machine body.

"Prior Art" Conventionally, as shown in Japanese Patent Application Laid-Open No. 52-43616, there has been a rice transplanter in which a body frame extends in the front and rear directions on both sides of the wheels, and an engine is installed in the front part of the frame.

``Problems to be solved by the invention'' In the above-mentioned conventional technology, a seedling stand with a low rear and front height was arranged above the wheels to make the machine body longitudinally compact. Since the drive case is provided to improve the strength of the frame, the mounting position of the drive case is restricted by the wheel, and the drive case cannot be disposed forward of the rear end of the wheel. Even if the case could be divided into left and right parts and distributed to the sides of the wheels, there were structural problems such as the connection of the rear parts of the left and right fuselage frames being restricted by the seedling stand, which should preferably be supported at a low position.

``Means for Solving the Problems'' However, the present invention provides a rice transplanter in which left and right body frames are arranged on both sides of wheels provided approximately on the longitudinal center line of the machine body, and an engine is provided in the front part of each frame. Left and right drive cases are provided on the rear sides of the left and right fuselage frames, respectively, and the left and right steering handles are respectively extended to the rear of the fuselage via each drive case, and a seedling stand with a low front and rear height is installed above the handles. It is characterized by the fact that the rear parts of the left and right fuselage frames are connected by a portal frame.

``Function'' Therefore, by having the left and right drive cases separated, the drive case can be easily placed in the front position, and the fuselage frame, drive case, and steering handle can be extended in a substantially straight line to simply configure the fuselage. In addition, since the seedling stand is positioned above the handle with a low front and rear height, the gate-shaped frame can be easily connected to the rear of the left and right fuselage frames, and the left and right fuselage stands can be easily connected to the rear of the left and right fuselage frames, resisting the operating force of the handle. The spacing between the rear parts of the frame and the mounting spacing between the left and right drive cases can be maintained substantially constant, and the structure of the machine body can be simplified compared to the conventional one, making it easier to prevent deformation of the seedling stand.

"Embodiment" An embodiment of the present invention will be described below in detail based on the drawings.

Fig. 1 is a side view of the single-wheel walking type rice transplanter, and Fig. 2 is a plan view of the same. , 4b are elliptical cylindrical transmission cases, which are a pair of left and right fuselage frames whose front ends are connected and fixed to the transmission case 3a of the transmission case 3, respectively. Left and right planting claw drive cases that drive the attachment claws 6; left and right steering handles 7, 7 fixing their base ends to the drive case 5;
Reference numeral 8 denotes a seedling stand drive case provided outside the case 5 and the handle 7 on the left side, and 9 a rearward tilting case for four-row planting, which is attached to the upper side of the handle 7 so as to be slidable from side to side via a seedling take-out plate 10 and a guide rail 11. Seedling stand,
Reference numeral 12 denotes an auxiliary handle located between the handle 7 and extending outwardly to the left and right, and 13 refers to the handle 7.
A tension marker 14, which is attached to the outside so that it can be raised and lowered, is connected between the engine 1 and the seedling stand 9 through a swing case 15 that is swingably connected to the transmission case 3a, approximately in the center between the left and right transmission cases 4a and 4b. 16 is a single-wheel type paddy wheel that is arranged to be able to rise and fall, and 16 is a left and right sliding float that is supported on both left and right sides of the wheel 14 through a buffer link 17 and a planting depth adjustment link 18, and whose bottom part is grounded on the planting field surface. ,1
Reference numeral 9 denotes a gate-shaped frame whose intermediate portion is horizontally suspended above the wheels 14, and whose lower ends on both sides are connected and fixed to the rear portions of the left and right transmission cases 4a, 4b; and 20, the engine 1;
a bonnet attached between the upper side and the gate-shaped frame 19; a center marker 21 that is vertically disposed on the front upper surface of the bonnet 20 and is aligned with the running trajectory line marked on the planting field surface by the streak marker 13;
22 is a side bumper connected and supported between the portal frame 19 and the lower end portions of the handle 7; 23;
is a side marker that is supported by the outer end of the side bumper 22 and aligned with the adjacent already planted seedlings, and one seedling is taken out by the planting claw 6 from the seedling platform 9 that moves back and forth from side to side while the aircraft is running. The structure is such that four rows are successively planted in the field.

As shown in FIGS. 3 to 5, the portal frame 19 has a fixing plate 24, a mounting bracket 25, and bolts 2 on the inside of the rear ends of the left and right transmission cases 4a, 4b.
6, the left and right frame support legs 19a removably fix and support the lower base ends, and the left and right support legs 1.
and a frame connecting part 19b installed horizontally between the upper ends of the transmission cases 9a, and the rear ends of the left and right transmission cases 4a and 4b are connected by the supporting legs 19a and the connecting part 19b to maintain a constant positional relationship between them. It is composed of

Further, a bumper receiver 27 is fixedly installed on the outer side of the base end of the left and right frame support legs 19a to fit and support one end of the side bumper 22 horizontally.

The left and right transmission cases 4a and 4b are removably connected and fixed to the transmission case 3a and the drive case 5 at their front and rear ends through bolts 28 and 29, respectively.

As is clear from the above configuration and drawings, transmission cases 4a and 4b, which are left and right fuselage frames, are arranged on both sides of wheels 14 provided on the longitudinal centerline of the fuselage, and an engine 1 is mounted in the front of each of the cases 4a and 4b. In rice transplanters equipped with
Left and right drive cases 5, 5 are provided on the rear side of a, 4b, and left and right steering handles 7, 7 are respectively extended to the rear of the fuselage via each drive case 5, 5, and seedlings with a low front and rear height are installed. A platform 9 is disposed above the handles 7, 7, and the rear portions of the left and right transmission cases 4a, 4b are connected by a portal frame 19.

This embodiment is constructed as described above, and the planting portion A is removed by removing the drive case 5 by operating the bolt 29 from the rear end of the transmission cases 4a, 4b.
Even when the transmission cases 4a and 4b are removed from the machine B, the rear ends of the transmission cases 4a and 4b are firmly connected to each other by the portal frame 19 and supported on the machine B side. The shortcoming of the conventional structure, which is unstable due to cantilevered structure, has been resolved, making it suitable for reinstallation of planting section A to this machine B, or when replacing and installing other types of equipment for rice seeding, weeding, puddling, etc. These working machines can be easily and accurately and quickly mounted without disturbing their positional relationships.

"Effects of the Invention" As is clear from the above embodiments, the present invention has the left and right fuselage frames 4a, 4b disposed on both sides of the wheel 14 provided approximately on the center line in the longitudinal direction of the fuselage, and in front of each of the frames 4a, 4b. In a rice transplanter equipped with an engine 1 in the left and right body frames 4a and 4b,
Left and right drive cases 5,5 are provided on the rear side, and left and right steering handles 7,
7 are respectively extended to the rear of the fuselage, and a seedling stand 9 with a low front and rear height is disposed above the handles 7 and 7, and the left and right fuselage frames 4a and 4b are connected at the rear by a portal frame 19. The left and right drive cases 5,5 are divided into two drive cases 5,5.
The machine body frames 4a, 4b, the drive case 5, and the steering handle 7 can be arranged in a substantially straight line to easily configure the machine body. Since the rear height is low and the handle 7 is positioned above the handle 7, the portal frame 19 can be easily connected to the rear of the left and right fuselage frames 4a and 4b, and the left and right fuselage frames resist the operating force of the handle 7. The distance between the rear portions 4a and 4b and the mounting distance between the left and right drive cases 5 and 5 can be maintained approximately constant, and the structure of the fuselage can be simplified compared to conventional systems, making it easier to prevent deformation of the seedling stand 9. It has practical effects such as:

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention.
The figure is an overall side view, FIG. 2 is a plan view of the same, FIG. 3 is an enlarged plan view of the main part, FIG. 4 is an enlarged side view of the main part, and FIG. 5 is an explanatory rear view of the main part. DESCRIPTION OF SYMBOLS 1...Engine, 4a, 4b...Transmission case (aircraft frame), 5...Drive case, 7...Steering handle, 9...Seedling stand, 14...Wheel, 19...
...Portal frame.

Claims (1)

[Scope of utility model registration request] Left and right fuselage frames 4a and 4b are disposed on both sides of wheels 14 provided approximately on the center line in the longitudinal direction of the fuselage, and an engine 1 is mounted in front of each frame 4a and 4b.
In rice transplanters equipped with
Left and right drive cases 5, 5 are provided on the rear side of a, 4b, and left and right steering handles 7, 7 are respectively extended to the rear of the fuselage via each drive case 5, 5, and seedlings with a low front and rear height are installed. The platform 9 is disposed above the handles 7, 7, and the left and right fuselage frames 4a, 4b are
A rice transplanter characterized in that the rear part is connected by a gate-shaped frame 19.