JPS5898009A - rice transplanter - 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 transplanter, and more particularly to a rice transplanter having an improved lead cam shaft that provides reciprocating lateral movement to a seedling tank loaded with seedling mats.

The rice transplanter uses seedling mats loaded in a seedling tank to cut out each seedling mat with a separating needle and then plants them in the field.The seedling tank loaded with seedling mats moves back and forth from side to side with the width of the seedling mat as a stroke. It is now possible to do so. 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 is integrated with the seedling tank. This is done by giving left and right feed.

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 there are no separation needles in the bed soil of the seedling mat. Due to continuous cutting, the density on the bed of the seedling mat at the end of the mat is denser than that at the start end in the feed direction, and the number of stems in each plant cut with the separation needle is increased. ing.

Therefore, even plants of the same size have different numbers of seedlings, and when planted, the density of planting in the field becomes uneven.

Therefore, the present invention attempts to make the number of seedlings per plant uniform by taking into account the uneven density of seedling mats on seedling tanks that occur during rice transplanting. In addition, when cutting out a dense part of the seedling mat, the pitch of the transverse feed was reduced to reduce the size of each plant, so that the size of each plant was substantially uniform. This is a characteristic feature.

DESCRIPTION OF THE PREFERRED EMBODIMENTS The structure of the present invention will be described below with reference to embodiments shown in the accompanying drawings. First, in FIG. 1, a seedling tank 1 is divided into a plurality of rows by a plurality of side walls 1a, 1b, etc., and a seedling mat 2 is placed in each room. A single-shaped front plate 3 placed at the lower end of the inclined seedling tank 1 is fixed to the body of the rice transplanter and does not move. Seedling tank 1
The guide member 5, which is substantially integrated with the guide member 5, is attached to the machine frame 6 so as to be slidable in the left and right directions (up and down in FIG.
The pin 8 is fixed to the free end of the lead metal 7 and is screwed into the cam groove of the lead camshaft 9. The lead cam shaft 9 is supported by the machine frame 6, and is connected to a drive source (not shown) by a chain 12 hooked on a sprocket 11 integrated therewith. The free ends of the arm members 13 and 14 fixed to both ends of the machine frame 6 have stud rods 15.
16 shafts 17.18 are pivotally connected to the implantable rod 15.1.
At the tip of 6, there is a portion for cutting and separating the seedling soil 1111119
．． 21 is fixedly installed.

Sprocket 22 fixed to each end of lead cam shaft 9
．． 23 is connected via a chain 24.25 to a sprocket 26.27 of the shaft 17.18, transmitting the rotation of the lead cam shaft 9 to the shaft 17.18 and driving 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, scrapes off the seedling soil, and separates the seedling mat. By rotating the lead cam shaft 9 in one direction, the lead metal l screwed thereon is guided, causing the seedling tank 1 to reciprocate in the left and right directions indicated by arrows 31 and 32.

Figure 2 shows a developed view of the cam grooves 9a and 9b of the dome shaft 9, and when the bottle 8 of the lead medal 7 is at the left end of the dome shaft 9 (upper end in Figure 1), the separation needle 19 is at a position where the right end of the seedling bed of the seedling mat 2 is scraped off. Each time the bin 8 is positioned at points 1°2, .
The pitch between each point is P1=Px =Ps = 1°0=P
20 = P21 > P22≧P23, and the amount of movement of the bin 8 near the starting end and center of the lead cam shaft 9 is equal, and the amount of movement near the end is smaller than the above. There is. The end of the lead camshaft 9 has cam grooves 9c, 9 that do not displace in the axial direction.
d are provided, and these cam grooves 9a,
When Jb are connected to each other and move along the cam groove 9b, points 1.2. ...The separation needle 19 operates at the position 24 to scrape off the seedling bed from the left side of the seedling mat 2, and in this case, the pitch of each point is P1= as in the cam groove 98.
Pa-...φ=P20=P21>P22≧P2+, and the movement amount near the terminal end is configured to be small.

The bin 8 starts from the right end of the lead cam shaft 9 and moves along the arrow 31 (
When moving to the left as shown in FIG. 1), the separation needle 19 scratches each seedling bed 81, St, Ss, etc. from the left end of the row 2a at the bottom of the seedling mat 2, as shown in FIG. Scrape off the area near the end* S n *S 24
The amount is small due to the high density of seedlings.

Figure 4 shows the seedbed uptake near the end, and the scraping amounts from Sl to 822 are equal, but the scraping I of S22 is
It has decreased by the scraped flow at S22, which is indicated by the symbol @35,
Similarly, the amount of scraping at S24 is also reduced by the amount of scraping flow at Sa, indicated by reference numeral 36.

S22. Although the amount of Sa scraped off is small, as mentioned above, the density of the seedlings is high near the end of the seedling mat 2, which is 1, so the number of seedlings is in an average state as a whole.

Thereafter, the bins 8 of the lead metal 7 are alternately guided by the cam grooves 9a and 9b, and the seedling tank 1 reciprocates, so that the second row 2b and third row 2C of the seedling mat 2 are successively scraped off. , in any case near the terminal,
Although the amount of cutting is smaller, the number of seedlings per plant is almost the same, and rice can be transplanted with a uniform number of plants.

As is clear from the above explanation, the rice transplanter of the present invention is configured so that the pitch of the cam grooves of the lead cam shaft that provides lateral feed to the seedling tank is slightly smaller than the pitch at the first bite part and the central part, The number of seedlings per plant can be approximately equal to the number of stems produced by the operation.

[Brief explanation of drawings]

Fig. 1 is a plan view of the seedling tank section of a rice transplanter to which the present invention is applied, Fig. IN2 is a developed view of the lead cam shaft showing an embodiment of the present invention, and Fig. 3 is a plan view of the seedling mat showing the cutting amount. , FIG. 4 is an enlarged view of the main parts of the same. 1... Seedling tank, 2... Seedling mat, 3... Front board,
5... Guide member, 6... Machine frame, 7... Lead metal, 8... Pin, 9... Lead cam shaft, 9a,
9b...Cam groove, 19°21...Separation needle. Patent Applicant: Agent for Ikai Agricultural Machinery Co., Ltd., Attorney: Nobu Kobashi, Patent Attorney: Susumu Murai, Procedural Amendment (Voluntary) October 27, 1980, Commissioner of the Patent Office, Wakasugi, 1 Kuchi, Husband! , Indication of the case 1982 Patent Application No. 118985 2 Name of the invention Rice Transplanter 3 Person making the amendment Relationship to the case Patent applicant 700-4 Maki-cho, Matsuyama City, Ehime Prefecture Agent (amendment) Description 1. Name of the invention 1) Planting machine 2. Claims (1) A slider connected to a seedling tank is engaged with a reciprocating reciprocating reed cam groove for lateral feeding formed on the circumferential surface of the lead cam shaft, and the lead cam shaft is In a rice transplanter configured to give a reciprocating cross-feeding of the seedling tank in the left-right direction by the rotation of A rice transplanter characterized in that the rice transplanter is configured such that the end portion is small. 3. DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a rice transplanter, and more particularly to a rice transplanter having an improved lead cam shaft that provides lateral reciprocating motion to a seedling tank. Usually, a rice transplanter uses mat-shaped seedlings (
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 installing left and right-handed threaded lead cam grooves on the lead cam shaft, and engaging a lead metal slider that is integrally connected to the seedling tank with the lead cam groove to rotate the lead cam shaft. In this system, a system is adopted in which the seedling tank is provided with multiple horizontal feeds using pillars on both the left and right sides. Therefore, each time the seedling tank reaches the left and right poles, the direction of movement changes, and at this time, the seedling mat on the seedling tank is pressed against the left and right side walls, compressing the seedlings at the side ends. In addition, the seedlings at the side edges are compressed due to friction between the seedlings and the seedling receiver that supports the front edge of the seedling mat.
Compared to the starting end and middle part in the feeding direction, the density on the bed of the seedling mat near the end of the mat tends to be denser, and the number of seedlings per plant cut out with the separating claw tends to be larger. However, even if the cuttings are of the same size, the number of seedlings per plant is different, resulting in variations in the number of seedlings planted.Therefore, the present invention and Akira developed a seedling tank for rice planting. Focusing on the fact that the seedling mats placed on the seedling mats have uneven density, the idea is to take this unevenness into consideration and make the number of seedlings per plant even. When cutting out areas with high density, the horizontal feed pitch is reduced to reduce the size of each plant, so that the number of seedlings per plant is substantially uniform. Hereinafter, one embodiment of the present invention will be described in detail with reference to the drawings.In Fig. 1, 1 is a seedling tank;
A plurality of partition molds 1a and lb protrude in parallel from the top surface.
The seedling mat 2 is divided into a plurality of seedling mounting surfaces, and a seedling mat 2 is placed on each seedling mounting surface. The L2 seedling tank 1 is inclined to one side and is supported so as to be movable laterally in the left and right direction, and the lower end of the inclination is connected to a seedling support receiver 3 fixed to the body of the rice transplanter and extending in the left and right direction.
The front edge of the seedling mat 2 is supported in a slidable manner by a seedling support receiver 3. The seedling support receiver 3 has seedling outlet openings 28 opened therein corresponding to the seedling mounting surfaces partitioned by the partition walls 1a and Ib. The seedling tank 1 has a guide member 5 that is substantially integrally connected to the seedling tank 1, and the guide member 5 is arranged in the left-right direction (in the vertical 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 the lead cam shaft 9
is engaged with the cam groove. The lead cam shaft 9 is supported by the main transmission case 6, and the rotational force of a drive source (not shown) is transmitted to the shaft 9 through a sprocket 11 and a chain 212. Further, at both ends of the main transmission case 6, a pair of left and right sub-transmission cases 13, 14 are connected to the main transmission coos 6 in a planar portal shape, and each free end of these left and right sub-transmission cases 13, 14 , the drive shaft 17
．． A pair of implants 15, 16 are attached via the implants 18, and a seedling mat is cut out for each plant at the tip of each implant 15, 16. A separating claw 19.21 is attached. Then, the left and right shaft ends of the lead cam shaft 9 are inserted into the sub-transmission case 13.14, and the sprockets 22 and 23 fixed to each shaft end are connected to the implantation experience driving shaft through the chain 24.25. 17.18, and transmits rotation of the lead cam shaft 9 to the shaft 17.18 to drive the implant 15.16. As a result, the separating claw 19 moves from above to below within the seedling take-out port 28 provided in the seedling support receiver 3, so that the front edge of the seedling mat 2 is cut out for each plant and planted in the field. When the lead cam shaft 9 rotates, the lead metal 7 is moved left and right via the slider 8 engaged with the lead cam shaft 9, causing the seedling tank 1 to reciprocate in the left and right directions shown by arrows 31 and 32. I try to let them do it. FIG. 2 shows a cam 119 formed on the circumferential surface of the lead cam shaft 9.
9A and 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 W4i element 8 is moving along the cam groove 9a, points 1, 2, . ...24, the separation claw 19 passes through the seedling take-out port 28 to cut out the seedling pine t-, but the pitch between each point is Pl"Px = Ps = ◆Aikoji P2o-P21 >PZ!≧P23, the amount of movement of the slider 8 near the starting end and center of the lead cam shaft 9 is equal, and the amount of movement near the end is smaller than the above. An 11-stroke cam 1i9a is connected to the end of the lead cam shaft 9 via end cams 119c and 9d that are not displaced in the axial direction.
and the cam groove 9b of the backward stroke are connected to each other in a folded manner,
When the slider 8 is folded back at the shaft end and moves along the cam groove 9b in the backward stroke, the separating claw 19 moves the front edge of the seedling mat 2 from the left side at points 1, 2°, . . . 24. 1 in the opposite direction
The pitch of each point in this case is Pl - Px = . . . similar to the cam groove 98.
”Px+ =P2+ >P22≧P23,
It is configured so that the amount of movement near the terminal end is small. With this configuration, when the slider 8 moves to the right as shown by the arrow 31 (Fig. 1) from the right end of the cam shaft 9 as a starting point, the separation claw 19 moves as shown in Fig. 3. , front edge of seedling mat 2 - 81 from the left end of row 2a, St ,
Each seedling block is cut out in the order of Sg..., and the scraping amounts S7J and S24 near the end are a small amount. Figure 4 shows the half of the seedling scraping near the end;
The scraping amount from to 822 is equal, but the scraping amount of St is
, the amount of scraping at 822, indicated by reference numeral 35, is reduced.Similarly, the amount of scraping at S24 is also reduced by the amount of scraping at S23, indicated by reference numeral 36. The amount of scraping at S2P and S23 at the end of the movement is small, but as mentioned above, the density of seedlings is dense near the end of seedling mat 2, so the number of seedlings per plant is averaged out as a whole. be done. The slider 8 of the J-s lower lead metal 7 is in the cam grooves 9a and 9b.
As the seedling tank 1 reciprocates while being guided alternately by Although the amount is smaller, the number of seedlings per plant is approximately the same, and the number of seedlings to be planted can be made uniform. As is clear from the following explanation, the rice transplanter of the present invention has a pitch of each camshaft in the forward stroke and double stroke of the lead camshaft that provides left and right reciprocating cross-feeding to the seedling tank, compared to the starting end and the center. Because the structure is configured so that the terminal part is slightly smaller, the number of seedlings taken out from the seedling outlet of the seedling tank is averaged out as a whole, and the number of seedlings planted per seedling seen in the rice planting nest is reduced. can be made almost equally uniform, and variations in the number of planted trees 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 part of the same F. DESCRIPTION OF SYMBOLS 1... Seedling tank, 2... Seedling mat, 3... Seedling support receiver, 5... Guy;-ζ member, 6... Main transmission case, 7... Lead metal, 8... ... Slider, 9 ... Lead cam shaft, 9a, 911 ... Cam groove, 19.21
... Separation claw. 1. Indication of the case Patent Application No. 118985, filed in 19832. Name of the invention: Rice transplanter 3. Person making the amendment Relationship with the case Patent Applicant: 700-4, Mamotocho, Matsuyama City, Ehime Prefecture, Agent: 6. Subject of amendment Procedural amendment submitted on October 27, 1988 1. Subject of amendment by myself ``Object of amendment'' and ``Contents of amendment'' columns, Contents of amendment As shown in the attached document Procedural amendment (voluntary) October 27, 1981 Commissioner of the Patent Office Wakasugi 1 Kuchi Huo 1, Indication of the case 1982 Patent Application No. 118985 2, Name of the invention Rice transplanter 3, Person making the amendment Relationship to the case, Patent applicant 700 Umamoto-cho, Matsuyama City, Ehime Prefecture Address 4, Agent 5, Full text of the specification to be amended 6゜Contents of amendment The full text of the specification will be amended as shown in the attached sheet.

Claims (1)

[Claims] (1) In a rice transplanter configured to provide reciprocating lateral feed by rotation of the lead cam shaft to a seedling tank screwed and supported by a reciprocating lead cam shaft 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 terminal end is smaller than the starting end and the center.