JPS5898010A - Rice planter - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice transplanting machine, and more particularly to a rice transplanting machine in which an improved lead cam shaft provides double movement in lateral movement to a seedling tank loaded with seedling mats.

A rice transplanter uses seedling mats loaded in a seedling tank to cut out each plant with a separation needle and then plants them in the field.The seedling tank loaded with seedling mats can move back and forth from side to side using the width of the seedling mat as a stroke. It looks like this. This reciprocating motion is achieved by providing left- and right-handed threaded lead cam grooves on the lead cam shaft, and screwing into these lead cam grooves a lead metal that has an integral structure with the seedling tank.The rotation of the lead cam groove causes the seedling tank to This is done by giving left and right feed to the .

Therefore, each time the seedling tank reaches the left and right ends, the direction of movement changes, so the seedling mat on the seedling tank is slightly shaken from side to side, and the separation needles are cut many times in the soil of the seedling mat. Due to this, the density on the bed of the seedling mat at the end of the mat becomes denser than that at the start end in the feed direction, and the number of stems attached to a single plant cut out with a separation needle increases. ing.

Therefore, even plants of the same size have different numbers of seedlings, and if these are planted in elms, the density of the seedlings will be uneven when planted in the field.

Therefore, the present invention attempts to make the number of seedlings per plant uniform by taking into account the uneven density of the seedling mats on the seedling tank caused by the rice transplanting machine. To this end, when cutting out the denser parts of the seedling mat, the pitch of the cross-feeding is reduced to reduce the size of each plant, so that the size of each plant is essentially uniform. It is characterized by:

An object of the present invention is to provide a rice transplanter in which the pitch of the cam grooves of the ripple shaft that reciprocates the seedling tank is larger near the starting end and smaller near the end than the pitch near the center. There is a particular thing.

Hereinafter, the configuration of the present invention will be explained by referring to t* examples shown in the attached drawings. First, in FIG. 1, the seedling tank 1 is divided into a plurality of rows by a plurality of sides 11a, lb, etc. Seedling mats 2 are placed in each of the intervening rooms. The seedling tank 1 is supported by a guide member (not shown) so as to be slidable in the left-right direction (up-down direction in FIG. 1), and has an L-shaped front plate 3 at its lower end. It is fixed to the body of the rice transplanter. The guide member 5, which is substantially integrated with the seedling tank 1, is slidably attached to the machine frame 6, and the base of the lead metal 1 is fixed to the center of the guide member 5, and the lead metal 1 is fixed to the center of the guide member 5. metal 7
A pin 8 fixed to the free end of the lead camshaft 9 is screwed into a cam groove of a lead camshaft 9. The lead cam shaft 9 is attached to the machine frame 6, and connected to a drive source (not shown) by a hook 12 hooked on a sprocket 11 integrated therewith.

A shaft 17.18 of a planting rod 15.16 is pivotally attached to the free end of an arm member 13.14 whose base is fixed to both ends of the machine frame 6, and a seedling is attached to the tip of the planting rod 15.16. Separation needles 19.21 are attached to cut out the floor of the mat. The sprocket 2 attached to each IIasll of the lower camshaft 9
2.23 is connected to the sprocket 26.27 of the shaft 17.18 via a chain 24.25, and transmits the rotation of the lead cam shaft 9 to the shaft 17.18 to drive the stud 15.16. . That is, the separation needle 19 moves from above to below within the notch 28 provided in the front plate 3 to cut out and separate the seedbed soil. The bin 8 of the lead metal 1 is guided by the rotation of the lead cam shaft 9 in one direction, and the seedling tank 1 is reciprocated in the left and right directions shown by arrows 31 and 32.

FIG. 2 shows a developed view of the cam grooves 9a and 9b of the lead cam shaft 9. When the pin 8 of the lead metal 1 is at the left end (upper end in FIG. 1) of the lead cam shaft 9, the separation needle 19 is located at the position where the right end of the seedling mat 2 is cut out. The separation needle 19 operates to cut out the seedling mat every time the pin 8 is positioned at points 1°2...24 of the cam groove 9a, and the pitch between each point is Pl>p2>P3=P4=
...=-P2O-P21> P22≧P23, and the amount of movement of the pin 8 at the starting end of the lead cam shaft 9 is larger than that near the center, and the amount of movement near the end is greater than that near the center. It is designed to be smaller than that. Each end of the lead camshaft 9 is provided with cam grooves 9c and 9d that do not displace in the axial direction, and the two cam grooves 9a and 9b are connected to each other by the turning points formed by these cam grooves 9c and 9d. The pin 8 is folded back at the right end and fits into the cam groove 9b.
When moving along, the separation needle 19 operates at each position of points 1, 2...24 to cut out the seedling bed from the left side of the seedling mat 2, and the pitch of each point in this case is , similarly to the cam groove 9a, P1≧P2 >P3 =P4 =・=
P20=P21>P22≧P23, and the amount of movement of the bin 8 on the lead cam shaft 9 is larger near the start end than near the center, and conversely smaller near the end. There is.

When the bin 8 moves from the right end of the lead cam shaft 9 to the left as indicated by the arrow 31, the separation needle 19 moves from the left end of the row 2a at the bottom of the seedling mat 2 to 81. as shown in FIG.
Each seedbed 82...824 is cut out, and the cutting amount 1182 near the starting point is larger than the cutting amount 3n near the center, and the cutting amount 823, 824 near the end is smaller than the cutting trowel near the center. )? There is. In FIG. 4, when the seedling tank 1 moves in the direction of arrow 31 as shown in FIG. A gap 35 is formed by friction between the seedling mat 2 and the front plate 3. After the seedling bed of the 24th plant is scraped off, the seedling mat 2 is sent downward, and the first seedling bed on the right end side is cut out while the seedling tank is stopped as shown in FIG.

When the seedling tank 1 changes direction and moves in the direction of the arrow 32 as shown in figure (C), the gap 35 created in figure <a> is indicated by reference numeral 36 due to the movement of the seedling tank 1 in the direction of the arrow 32. It is swung back to the right side of seedling mat 2,
There is a risk that the amount of scraping of the second plant by the separation needle 19 will be reduced. However, in reality, as mentioned above, the lead cam shaft 9
The pitches P1 and P2 of the cam grooves on the starting point side are larger than those in the center, and the amount of seedlings to be cut out is larger, so the number of seedlings contained in the seedbed can be the same as that in the center. . In addition, although the last seedling mat 2 and the seedbed in front of it are densely packed, as mentioned above, the pitch of the cam surface near the end of the lead cam shaft 9 is smaller than that near the center, so the seedlings are not included in the seedling bed. The number of seedlings in the area can be the same as the number in the center.

As is clear from the above description, according to the rice transplanter of the present invention, the pitch of the cam grooves of the lead cam shaft that transversely feeds the lead metal integrated with the seedling tank is set to be larger near the starting end than near the center, and toward the terminal end. By configuring the tank to be smaller than the central part and increasing or decreasing the amount of movement of the seedling tank near the starting end and near the terminal end compared to the central part, it is possible to equalize the number of seedling stems per plant by cutting out the seedlings.

[Brief explanation of the drawing]

Fig. 1 is a plan view of the seedling tank section of a rice transplanter to which the present invention is applied, Fig. 2 is a developed view of the lead cam shaft showing an embodiment of the present invention, and Fig. 3 is a view of the seedling mat showing the amount of scraping. The plan view and FIG. 4 are diagrams showing the action of scraping the seedling mat. 1... Seedling tank, 2... Seedling mat, 3... Front board,
5... Guide member, 6... Machine frame, 7... Lead metal, 8... Bin, 9... Lead cam shaft, 9a,
9b...Cam groove, 19°21...Separation needle. Patent Applicant: Iseki AM Co., Ltd. Representative Patent Attorney Nobuo Yoko Junmeido Patent Attorney Shinkaji Murai Kazuo Wakasugi 1, Indication of the case 1982 Patent Application No. 118986 2, Name of the invention Rice transplanter 3, Person making the amendment Intermediary with the case Patent applicant 700-4 Umamotocho, Matsuyama City, Ehime Prefecture, Agent Person (Amendment) Details 1. Title of the invention 1) Planting machine 2. Claims (1> A slider connected to a seedling tank in a reciprocating reciprocating lead cam groove for lateral feeding formed on the circumferential surface of a lead cam shaft In this case, each cam groove formed on the lead cam shaft for the outward stroke and backward stroke is aligned with the pitch of the seedling tank. A rice transplanter characterized in that L is configured such that the starting end is larger and the terminal end is smaller than the central part. 3. Detailed Description of the Invention The present invention relates to a rice transplanting machine, and more particularly to a seedling tank. This rice transplanter is equipped with an improved lead cam shaft that provides double horizontal movement in both directions.Usually, a rice transplanter uses mat-shaped seedlings loaded on a seedling tank (
Seedling mats (hereinafter referred to as seedling mats) are cut out one by one from the front edge side to the other side using separating claws and planted in the field.The seedling tank loaded with seedling mats reciprocates left and right with the width of the seedling mats as a stroke. I am getting exercise. This reciprocating motion is achieved by providing left- and right-handed threaded lead cam grooves on the lead cam shaft, engaging a lead metal slider that is integrally connected to the seedling tank, and seedlings by rotation of the lead cam shaft. A system is adopted in which the tank is given reciprocating cross-feeding from left to right. In this case, the direction of movement changes each time the seedling tank reaches the left and right ends, and at this time, the seedling mat on the seedling tank is swung back to the left and right, and as a result of this swinging back, the folding start end side of the left and right ends is moved by the separation claw. The number of seedlings taken out per plant will decrease. In addition, during the lateral movement process, the density of seedlings at the side edges becomes clogged due to friction between the seedlings and the seedling receiver that supports the front edge of the seedling tank.
At the terminal end, the number of seedlings taken out per plant by the separating claws tends to increase, which is disadvantageous in that the number of seedlings planted per plant in the field varies. An object of the present invention is to provide an improved rice transplanter that can eliminate the above-mentioned disadvantages and equalize the number of seedlings per plant. For this purpose, the present invention engages a slider connected to the seedling tank with a reciprocating reciprocating lead cam groove for lateral feeding formed on the circumferential surface of the lead cam shaft, and moves the seedling tank in the left-right direction by rotation of the lead cam shaft. In a rice transplanter configured to provide reciprocating lateral feed, each of the cam grooves of the forward stroke and backward stroke formed on the lead cam shaft has a pitch larger at the starting end and smaller at the terminal end than in the center. It is characterized by being configured as follows. Hereinafter, one embodiment of the present invention will be specifically described with reference to the drawings. In Figure 1, 1 is a seedling tank, and this seedling tank 1
are a plurality of partitions 1j1a that protrude in parallel to the L surface, 1
It is divided into a plurality of seedling mounting surfaces by b, etc., and a seedling mat 2 is placed on each seedling mounting surface. ■-The seedling storage tank 1 is tilted to one side and is supported so as to be movable laterally in the left and right direction.
The front edge of the seedling mat 2 is slidably supported on a seedling support receiver 3 fixedly installed on the body side of the rice transplanter and extending in the left-right direction, and the front edge of the seedling mat 2 is received by the seedling support receiver 3. This seedling support receiver 3 is provided with seedling take-out ports 28 corresponding to the seedling mounting surfaces partitioned by the partitions 5J1a and 1b. The seedling tank 1 has a guide portion 445 that is substantially integrally connected to the seedling tank 1, and this guide member 5 extends in the left-right direction (up-down direction in FIG. 1) with respect to the main transmission case 6. A lead metal 7 is fixed to the center of the guide member 5 which is slidably supported by the main transmission case 6 and is inserted into the main transmission case 6. A slider is fixed to the free end of the lead metal 7. 8 is engaged with a cam groove of the lead camshaft 9. The lead camshaft 9 is supported by the main transmission case 6,
A sprocket 11 and a chino 12 are attached to the shaft 9.
Rotational force is transmitted from a drive source (not shown) via the drive source. Further, at both ends of the main transmission case G, a pair of left and right sub-transmission cases 13.14 are connected to the main transmission case 6 in a planar portal shape, and each free end of these left and right sub-transmission cases 13.14 a pair of implants via drive shafts 17 and 18.
15.16 is attached to the tip of each implant 15.16, and a separation claw 19 is attached to the tip of each implant 15.16 to cut out and separate the seedling mat for each plant.
．． 21 is installed. Then, the left and right shaft ends of the lead cam shaft 9 are thrust into the sub-transmission case 13.14, and the sprockets 22.23 fixed to each shaft end are connected to the implantation experience driving shaft 17.25 via the chino 24.25. It is connected to the sprockets 26 and 27 of 18, and the rotation of the lead cam shaft 9 is controlled by the shaft 1.
7.18 to drive the implant 15.16. As a result, the separating claws 19 move downward from one direction inside the seedling take-out opening 28 provided in the seedling support receiver 3, and the seedling mat 2
The lead metal 7 is moved left and right by the rotation of the lead cam shaft 9 through the slider 8 that is engaged with it. The seedling tank 1 is moved back and forth in the direction indicated by arrows 31 and 32 to the right. FIG. 2 shows a cam groove 9a formed on the circumferential surface of the lead cam shaft 9.
, 9b, when the slider 8 of the lead metal 7 is located at the left end of the lead cam shaft 9, the separating claw 19 is in a position to cut out the right end of the front edge of the seedling mat 2. While the slider 8 is moving along the cam groove 98, points 1, 2, . ... 24, the separating claw 19 passes through the seedling take-out port 28 to cut out the seedling mat, but the pitch between each point is Pt>Pz>Ps=P4=
・Fist ・-P20=P21 >P22
≧ Pn, and the lead cam shaft 9
The amount of movement of the slider 8 at the starting end in the axial direction is larger than that at the center, and the amount of movement near the end is smaller than that at the center. At the end of the lead camshaft 9, a cam groove 98 for the forward stroke and a cam groove 9b for the backward stroke are connected back to η via end cam grooves 9c and 9d that do not displace in the axial direction. When the slider 8 is folded back at the shaft end and moves along the cam groove 9b in the backward stroke, points 1, 2, . ... At position 24, the separating claw 19 cuts out the front edge of the seedling mat 2 from the left side in the opposite direction to one plant, and in this case, the pitch of each point is the same as the cam groove 9a. Similarly, Pl〉Pl〉P3=P4-00@
P20=P21>Pη≧P22, and the amount of movement of the slider 8 by the lead cam shaft 9 is greater at the starting end than at the center, and conversely, the amount of movement near the end is greater than at the center. It is designed to be small. With this structure, when the slider 8 moves from the right end of the cam shaft 9 to the right as indicated by the arrow 31 (Fig. 1), the separating claw 19 moves as shown in Fig. 3. To,
Front edge of seedling mat 2 - 81. from the left end of row 2a. S.R., S.S.
Each seedling block is cut out in this order, and at this time, the cutting amount ISs, Sa near the starting point is larger than the cutting amount Sn in the center, and the scraping amount Sg, S near the end
24 is smaller than the cutout ISn of the central portion. Therefore, as the seedling tank 1 moves in the direction of the arrow 31 as shown in Fig. 4 (O) and the separation claw 19 reaches the end of taking out the seedlings (the 24th plant), the seedling mat 2 is Since the front edge slides on the seedling support receiver 3, a gap 1935 is formed at the left end side of the seedling mat 2 due to the frictional resistance. Then, after the terminal seedling (24th plant) on the right end of the front edge was cut off, the seedling mat 2 was sent out one pitch toward the seedling removal side, and then the seedling tank stopped as shown in figure (b). In this state, the first seedling on the right end side is cut out, but at this time, when the seedling tank 1 changes its moving direction and starts moving in the direction of arrow 32 shown in Figure (c), the seedling mat 2
is swung back so that the S space 35 is moved to the right end side of the seedling mat 2 as shown by reference numeral 36, so that a phenomenon occurs in which the amount of the second plant to be cut by the separating claws 19 is reduced. However, in this case, in the present invention, as described above, the pitches Pz, Pz of the cam grooves on the starting point side of the lead camshaft 9-
The mat is thicker than the central part, and the amount of seedlings to be cut out is larger, so the number of seedlings per plant can be the same as that in the central part. The final end near the end of cutting and the seedling mat in front of it tend to be dense, but as mentioned above, the pitch of the cam groove near the end of the lead cam shaft 9
G: J, since b is smaller than near the center, the number of seedlings included in each bacterial strain can be made equal to the number in the center. Thus, according to the rice transplanter of the present invention, the seedling take-out port of the seedling tank can be removed without being affected by the shaking of the seedlings or changes in the density of the seedlings that occur due to the horizontal movement of the seedling tank. The number of seedlings taken out per plant can be averaged as a whole, and the number of seedlings planted per plant (planting number) in the field can be made almost uniform, so variations in the number of seedlings planted can be reduced. It can be eliminated. 4. Brief description of the drawings Figure 1 is a plan view of the seedling tank section of a rice transplanter to which the present invention is applied, Figure 2 is a developed view of the lead cam shaft showing an embodiment of the present invention, and Figure 3 is a cut-out diagram. Top view of seedling mat showing quantity, 4th
The figure is an enlarged view of the main parts of the same. DESCRIPTION OF SYMBOLS 1... Seedling tank, 2... Seedling mat, 3... Seedling support receiver, 5... Guide member, 6... Main transmission case, 7
... Lead metal, 8... Slider, 9... Lead cam shaft, 9a, 9b... Cam groove, 19.21...
separation nails. Procedural amendment type (directive) 1981, ~10, Kazuo Wakasugi, Commissioner of the Japan Patent Office1, Indication of the case, 1986 Patent Application No. 1189862, Name of the invention, rice transplanter3, Person making the amendment, and Relationship between patent applicant 700-4 Umaki-cho, Matsuyama City, Ehime Prefecture, agent 5, date of amendment order 6, subject of amendment Procedural amendment type submitted on October 27, 1975 [subject of amendment J and ``Amendment ``Contents'' column, content of amendments as shown in the appendix Procedural amendment (voluntary) January 27, 1980 Director General of the Patent Office Kazuo Wakasugi 1 Indication of the case 1989 Patent application No. 1/8986 2 , Name of the invention Rice transplanter 3, Person making the amendment Relationship to the case Patent applicant 700-4, Mamoto-cho, Matsuyama City, Ehime Prefecture, Agent 5, Full text of the specification to be amended 6, Full text of the specification of the contents of the amendment as attached. Correct accordingly.

Claims (1)

[Claims] (1) In a rice transplanter configured to provide tIIm lateral feed by rotation of the lead cam shaft to a seedling tank screwed and supported by a reciprocating lead cam groove for lateral feed formed on the lead cam shaft, the cam groove of the lead cam shaft is A rice transplanter characterized in that the pitch is larger at the starting end and smaller at the end than at the center.