JPS6314580Y2 - - Google Patents

Description

[Detailed description of the invention] "Industrial application field" The invention includes a seedling platform that slides back and forth from side to side, and a planting claw that takes out one seedling from the seedling platform,
The present invention relates to a rice transplanter in which a rice transplanter body to which the seedling stand and planting claws are attached is supported by a pair of left and right wheels.

"Prior Art" Conventionally, as shown in Japanese Patent Application Laid-Open No. 53-86323, a pair of left and right seedling stands are installed between a pair of left and right wheels so as to be able to reciprocate from side to side via a seedling stand guide rail. The technology has improved.

"Problems to be Solved by the Invention" In the above-mentioned conventional technology, the guide rail was formed longer than the inner distance between the wheels, and the seedling platform that reciprocated from side to side was moved above the wheels. It is necessary to support the seedling stand on the outside of the outer diameter of the wheel, and the center of gravity of the seedling stand cannot be easily lowered, and it is difficult to make the seedling stand long in the longitudinal direction of the machine body. In particular, the unnecessary space formed between the left and right wheels cannot be easily reduced, and the longitudinal length of the aircraft body cannot be easily reduced.

``Means for Solving the Problems'' However, the present invention provides a rice transplanter in which a pair of left and right seedling stands are installed between a pair of left and right wheels via a seedling stand guide rail so as to be able to reciprocate from side to side. The length of the guide rail is formed to be shorter than the inner width of the left and right wheels, and the guide rail is arranged within the outer diameter of the wheels when viewed from the side, and the left and right seedling stands are placed at the center of the front and rear of the machine body. The width of the gap between the left and right seedling trays and the seedling tray should be adjusted with the left and right seedling take-out ports of the guide rails positioned approximately at the center of the left and right widths of the seedling trays. It is characterized in that the inner width of the seedling stand is formed so that the inner width of the shorter side of the stand is approximately equal.

"Function" Therefore, it is possible to easily shorten the longitudinal length of the machine by attaching the seedling stand in front of the end of the wheels, and the space between the left and right wheels can be used to mount the seedling stand in a compact manner. In addition, the center of gravity of the seedling platform can be positioned lower than in the past, and the length of the seedling platform in the longitudinal direction of the machine body can be made arbitrarily long, especially the left and right sides of the seedling platform and the guide rail. By covering the seedling with wheels, bumper members for the seedling stand and guide rail are completely unnecessary, making the structure simpler than before and allowing safe handling. By forming a gap width between the left and right seedling stands that is approximately equal to the short inner width of the seedling stand when positioned at It can be arranged stably and functionally, and by synchronizing and moving the left and right seedling stands in different directions, for example, it is possible to maintain good left-right balance of the machine body and easily prevent rolling motion.

"Embodiment" Hereinafter, an embodiment of the present invention will be described in detail based on the drawings.

FIG. 1 is an overall side view, and FIG. 2 is a plan view of the same. In the figure, 1 is an engine mounted on an engine stand 2, and a fuel tank 3 is installed above the engine 1. A front bumper 4 extends from the front part of the engine stand 2, and a center marker 5 is vertically provided in front of the upper part of the fuel tank 3.

Further, the rear base end of the engine stand 2 is connected and fixed to the front part of the transmission case 6, and the planting transmission case 7 is connected and fixed to the rear part of the transmission case 6 in a substantially straight line, so that the engine 1, The transmission case 6 and the planting transmission case 7 constitute the machine body.

Further, a pair of left and right swing cases 9, 9 are mounted on the left and right outer sides of the transmission case 6 via side clutch shaft outer cylinders 8, 8, and axles 10, 10 are mounted on the outer sides of the swing cases 9, 9. A pair of left and right paddy wheels 11, 11 are rotatably mounted on the shaft.

Furthermore, a float-like sliding body 14 is connected below the transmission case 6 and the planting transmission case 7 via a buffer member 12 and a stopper member 13, and the engine 1, the transmission case 6 and the planting transmission case 7 is configured to be supported by the sliding body 14.

On the other hand, a seedling stand transverse feed drive case 15 is installed at the rear of the upper surface of the mission case 6,
A pair of left and right seedling stands 18, 18 are connected and supported via brackets 17, 17 to a feed shaft 16 that is inserted through the drive case 15.

The seedling stands 18, 18 have left and right wheels 11, 11.
The height is symmetrically spaced from the center of the aircraft, with the front height and the rear low.
The structure is such that a pine seedling having an area of about half of the short side of a 58 cm pine seedling reduced to approximately 1/2 can be placed on this seedling mounting table 18.

In addition, guide rails 19, 19 are fixedly installed on the lower surfaces of the inclined upper ends of the seedling stands 18, 18, and sliders 21, 21 provided on support arms 20, 20 erected on the upper surface of the traverse feed drive case 15 are moved. Rail 19, 19
The seedling stand 18,1 is slidably inserted into the seedling stand 18,1
A seedling platform guide rail having a width M (see FIG. 3) shorter than the distance L (see FIG. 3) between the wheels 11 and 11, which supports the lower end of the slope of the planting transmission case 7 on the rear upper surface of the planting transmission case 7. 22, between the pair of left and right wheels 11, 11, the pair of left and right seedling stands 1
8 and 18 are provided along the guide rail 22 so as to slide back and forth from side to side, and the guide rail 22 is provided with seedling outlet openings 22a and 22a.

Further, a steering handle 23 is installed substantially vertically on the upper rear end of the planting transmission case 7 which is connected to the rear of the transmission case 6 in a backward-inclined manner, and a rotating shaft is provided on the left and right outer sides from both ends of the case 7. 24 protrudes, and rotary arms 25, 25 are attached to both ends of this rotary shaft 24.
A pair of left and right planting claws 26, 26 intermediate are attached via the. Further, the rear ends of the planting claws 26, 26 are connected to the planting transmission case 7 via swing arms 27, 27.
The seedling mounting stands 18, 18 and the planting claws 26, 26 are interlocked to cause the claws 26, 26 to move at inconstant speed, and the seedlings are placed on the seedling mounting stands 18, 18. The seedlings are taken out one by one using the planting claws 26, 26,
The structure is such that one seedling is successively planted in the field.

Furthermore, a preliminary seedling mounting stand 28 is provided in the center of the body above the seedling mounting stands 18, 18.
The preliminary seedling mounting table 28 has its front lower surface supported on the front upper surface of the planting case 6 via a support 29, and its rear lower surface supported on the middle upper surface of the planting transmission case 7 via a support 30. It is installed approximately horizontally.

Note that 31 is a left side clutch lever, and 32 is an accelerator lever attached to the side clutch lever.

By the way, as shown in FIG. 3, the centers of the seedling stands 18, 18 mentioned earlier are aligned with the centers of the planting claws 26, 26, and the left and right seedling outlet openings 22a, 22a of the guide rail 22 are aligned with the centers of the seedling stands 18, 18, as shown in FIG. When the seedling stand 1 is located approximately at the center of the horizontal width of the
The gap width l2 between 8 and 18 is this seedling stand 18 and 18.
The seedling stand 1 is formed to have an inner width equal to the short side l1 (l1=l2), as shown by the imaginary line in the figure.
8 and 18 reciprocate left and right, each of these seedling stands 1
8 and 18 have moved to the innermost end position, these seedling mounting stands 18 and 1 are placed between the seedling mounting stands 18 and 18.
8 is configured to form an extra gap width l3 that does not abut. This gap width l3 is the same as the seedling stand 18,
When the left and right side wall thickness t of No. 18 is in the relationship t = 1/2W with respect to the width W of the seedling outlet, the relationship l3 = W holds true, and the gap width l3 is the length of the width W of the seedling outlet. It is. As a result, the pillars 29,
30 can be inserted through the gap width l3, and it is possible to directly support the preliminary seedling stand 28 from the upper surface of the transmission case 6 and the planting transmission case 7 via the supports 29 and 30. , the spare seedling platform 28 can be mounted on the machine body above the seedling platforms 18, 18 in a well-balanced and compact manner.

Thus, by centrally installing the seedling stands 18, 18 and the spare seedling stand 28 at the center of the machine body between the left and right wheels 11, 11 with a low bulk, that is, with a low center of gravity, the front and rear width of the machine body can be reduced. By reducing the size, the structure can be made compact, and the rice transplanter can be made smaller and lighter. In addition, the seedling platform guide rail 22 is positioned ahead of the rear ends of the wheels 11, 11 by the distance A, and the planting claws 26 The planting part 33 including the wheels 11
The seedling planting position by the planting claw 26 is formed inside the rear end of the wheel 11 by placing it close to the rear end of the wheel 1.
The planting part 33 can be easily provided at the rear end of the wheel 11 or in front of the wheel 11 if necessary. The planting part 33 can be arbitrarily provided in front of the machine body with respect to the wheels 11 to the extent that the planting depth of seedlings does not change due to changes in the rolling reaction force of the sliding body 14. The rear end side can be formed short, and the longitudinal length of the fuselage can be shortened.

"Effect of the invention" As is clear from the above embodiments, the present invention has a pair of left and right seedling stands between the left and right wheels 11, 11.
8, 18 are installed via a seedling platform guide rail 22 so as to be able to reciprocate left and right, the length M of the guide rail 22 is made shorter than the inner width L of the left and right wheels 11, 11. The guide rail 22 is arranged within the outer diameter of the wheel 11 when viewed from the side, and the left and right seedling stands 18, 18 are installed symmetrically with a space between them with respect to the longitudinal center line of the machine body. Left and right seedling outlet 22 of guide rail 22
a, 22a is located approximately at the center of the left and right widths of the seedling stands 18, 18, the gap width l2 between the left and right seedling stands 18, 18, and the short inner width l of the seedling stands 18.
1 is approximately equal to the inner width l of the seedling stand 18.
1, the seedling stand 18 can be installed in front of the end of the wheels 11 to easily shorten the longitudinal length of the machine, and the left and right wheels 11 can be easily shortened.
The space between the seedling stands 18 can be used to compactly install the seedling stand 18, the center of gravity of the seedling stand 18 can be positioned lower than in the past, and the length of the seedling stand 18 in the longitudinal direction of the machine can be adjusted as desired. In particular, by covering the left and right sides of the seedling platform 18 and the guide rail 22 with wheels 11, 11, the seedling platform 1 can be formed into a long length.
8 and the bumper member for the guide rail 22 can be completely eliminated, and the structure is simpler than the conventional one and can be handled safely. On the other hand, the seedling outlet 22a of the guide rail 22 is located approximately at the center of the width from side to side. By forming a gap width l2 between the left and right seedling stands 18, which is approximately equal to the short inner width l1 of the seedling stand 18, the left and right seedling stands 18 can be reciprocated from side to side.
18 can be placed on the upper side of the rice transplanting machine more stably and functionally than before. For example, by moving the left and right seedling stands 18, 18 in different directions in synchronization, this rolling action maintains a good left-right balance of the machine. This has practical effects such as being able to easily prevent this.

[Brief explanation of the drawing]

FIG. 1 is an overall side view of a rice transplanter according to the present invention, FIG. 2 is a plan view thereof, and FIG. 3 is an explanatory plan view of the main parts. DESCRIPTION OF SYMBOLS 11...Wheel, 18...Seedling platform, 22...Seedling platform guide rail, L...Inner spacing width of wheels, M...
...Length of the guide rail, l1... Inner width of the short side of the seedling platform, l2... Gap width between the seedling platforms.

Claims (1)

[Scope of utility model registration request] In a rice transplanter in which a pair of left and right seedling stands 18, 18 are installed between a pair of left and right wheels 11, 11 via a seedling stand guide rail 22 so as to be able to reciprocate from side to side, the inner distance between the left and right wheels 11, 11 The length M of the guide rail 22 is formed shorter than the width L, and the guide rail 22 is formed within the outer diameter of the wheel 11 in a side view.
At the same time, the left and right seedling stands 18, 18 are installed symmetrically with a space between them with respect to the front and rear center line of the machine body, and the left and right seedling take-out ports 22 of the guide rail 22 are installed.
a, 22a is located approximately at the center of the left and right widths of the seedling stands 18, 18, the gap width l2 between the left and right seedling stands 18, 18, and the short inner width l of the seedling stands 18.
1 is approximately equal to the inner width l of the seedling stand 18.
A rice transplanter characterized by forming 1.