JPH0432025Y2 - - Google Patents

Description

[Detailed description of the invention] (a) Industrial application field The present invention relates to a seedling stand in a seedling planting machine for planting pine-shaped seedlings in a field.

(b) Prior art The seedling platform of a conventional rice transplanter for planting pine-shaped seedlings in a field has a guide member for a scraper that slides into contact with the apron, and a member that pivotally supports the roller of a delivery belt stretched on the bottom. It was configured separately.

(c) Problems to be solved by the invention In the seedling transplanter, the guide member of the scraper and the receiving member for supporting the roller of the delivery belt were constructed separately. Since they had to be manufactured separately and attached separately to the seedling stand, their manufacture and assembly were extremely troublesome.

Further, since the load applied to the guide member and the guide member of the scraper is applied to the seedling stand separately, the seedling stand needs to be constructed strongly, resulting in an increase in cost.

(d) Means for solving the problem The present invention integrates the bearing member that bears the roller and the guide member that holds the scraper so that it can move forward and backward, thereby making it possible to simultaneously manufacture these members and the seedling stand. The above-mentioned problems have been solved by making it possible to assemble these parts into the seedling stand and contributing to increasing the strength of the seedling stand.

(E) Function: The roller support member on which the delivery band is stretched and the scraper guide member are manufactured at the same time by, for example, press processing, and these parts are assembled into a single unit onto the seedling stand in one step. be able to.

In the assembled state, the guide member and the receiving member are connected back and forth to be integrated with the seedling stand, thereby increasing the strength of the seedling stand.

(F) Embodiment The drawing shows an embodiment of the present invention, and
1 is equipped with an engine 2 at the front, wheels 3, 3 are supported by swing chain cases 4, 4 on both sides of the middle section, a planting device 5 is attached at the rear, and floats 6 are installed at the lower part of the front and rear... The planting device 5 has a seedling stand 8 installed at the rear of the transmission case 7 so as to be able to reciprocate in the horizontal direction, and each seedling on the seedling stand 8 is mounted on the front part of the machine. A plurality of planting rods 9 corresponding to the mounting section are provided so as to move up and down,
The lower surface of the seedling tray 8 on the delivery side is supported by a support frame 11 having an apron 10, and the upper portion is supported and guided by a guide rail. A delivery belt 13 consisting of a belt having a large number of small protrusions...
...is posted.

In addition, the side walls 14, 14 of the seedling stand 8 and the partition wall 1
5... There are U-shaped brackets 16 on top respectively.
..., the high outer plate 17 of the brackets 17, 17 which are screwed together and attached to the side walls 14, 14.
a, 17a and lower inner plates 17b, 17b, a shaft 18 is rotatably supported between the upper parts of the outer plates 17a, 17a, and the brackets 16...17 face each other across the seedling mounting section. , 17 are bored with elongated holes 19..., and pins 21... protruding from the lower part of the gate-shaped frame 20 that straddles the seedling section are inserted into the elongated holes 19... At the same time, a large number of regulating rods 23 are fixed to the top of the gate-shaped frame 20, which intrude between the rows of pine-like seedlings grown by row sowing, and the intermediate part is used to hold the seedlings of the shaft 18. A receiving plate 24 corresponding to the central portion of the mounting portion is fixed, and an L-shaped arm 25 fixed to the shaft 18 rotates and pushes the receiving plate 24.

Further, the regulating rod 23 has a substantially dogleg shape when viewed from the side, and its tip portion is bent slightly downward when viewed from the side as shown in FIG. Alternatively, as shown in Fig. 7, the tip may be straight without being bent, and the tip may be formed into a V-shape in plan view as shown in Fig. 6b. It is possible to more reliably lock the seedling soil and to easily carry out the retracting operation than the one which is bent at a substantially right angle toward directly below when viewed from the side.

Furthermore, the drive mechanism for the regulating rod 23 is a drive arm 2 fixed to a passive shaft 26 of an intermittent drive mechanism to be described later.
7, a passive arm 28 fixed to the shaft 18,
The connecting rod 30 that connects them and the spring 3 that returns the passive arm 28 until it contacts the stopper 31
2, and a spring 3 for returning the portal frame 20 and the regulating rod 23 to the posture shown by the solid line in FIG.
It consists of 3.

The intermittent drive mechanism includes an intermittent drive shaft 36 to which the roller 35 on the delivery side of the delivery band 13 is attached.
Fix the ratchet foil 37 and attach the pin 38 to the top.
a ratchet arm 41 which has a roll 39 supported by a pin at the lower part and a claw 40 which engages with the ratchet foil 37 on the side.
The pin 38 is biased to return and rotate by a return spring, and is loosely fitted onto the intermittent drive shaft 36, and is fixed to the passive shaft 26 and has its tip curved toward the intermittent drive shaft 36. It is constructed by polymerizing the lower side of the roll 3.
When the seedling table 8 reaches the end of lateral movement, the rotary arm 44 that is constantly rotating engages with the seedling table 9, so the ratchet arm 41 rotates the ratchet wheel 37 intermittently, and the intermittent drive shaft 36 rotates accordingly. As the roller 35 is rotated by a predetermined angle, the upper pin 38 rotates the passive rod 42 from the solid line position to the chain line position in FIG. 30 in the counterclockwise direction in FIG. During this time, the seedlings are sent out, and when the sending out is completed, the ratchet arm 4
1 rotates back, and the gate-shaped frame 20 is pulled by the spring 33 and rotates clockwise about the pin 21, and the regulating rods 23 . . . stick and lock onto the upper surface of the seedling soil.

The apron 1
The support guide member 46, which guides and holds the base of the scraper 45 whose end is engaged with the 0, has a downward U-shape as shown in FIG. Bearing holes 47, 4 of shaft 26
8, and a bearing elongated hole 50 and an adjustment elongated hole 5 of the shaft 43.
1, and holes 53, 53 into which pins 60, 60 supporting the guide rod 52 serving as a belt presser are fitted are bored, and the holes 53, 53 are fitted into the side wall 14 and the partition wall 15 as shown in FIG. Bolts 55, 5 protruding from the top surface
5 to the side wall 14, partition wall 15 and the bracket 1
The base of the scraper 45 is inserted into the recess of the support guide member 46, so that the planting rod 9...
When the apron 10 is moved forward or backward to adjust the amount of seedlings to be scraped by ..., the scraper 45 moves forward or backward while being guided by the support guide member 46, and the support guide member 46 is connected to the guide portion of the scraper 45, the roller 34, It is easy to manufacture as it can be integrally formed with the shaft supporting material of 35 by press working etc., and it is also easy to install.
4. Since the partition wall 15 and the brackets 16 and 17 are co-fastened and integrated, the strength of the seedling stand can be improved, and the support guide member 46...
The infeed side end of the horizontal connecting plate 54 is connected to the bolt 5.
4a... are connected by screwing.

In addition, since the intermediate portion of the delivery belt 13 descends due to the weight of the seedlings, in order to prevent this, a plurality of the guide rods 52 are curved downward at both ends, as shown in FIGS. 2 and 8. ... are pressed against the lower surface of the delivery band 13 between a number of protrusions 57, facing each other, and the delivery side and the return side are substantially in contact with each other or have an extremely narrow gap, and the guide Parallel support rods 58... connecting rods 52...
The pins 60 welded to both ends of the support guide member 46 are fitted into the holes 53 of the support guide member 46 and supported.

Further, adjustment plates 6 fixed to both ends of the shaft 43 are provided.
The other end of 1,61 is a bolt 62, as shown in FIG.
Since it is screwed to the support guide members 46, 46 at 62, the tension of the delivery band 13 can be adjusted. 63 is a buffer material.

In the above-mentioned embodiment, a walking type rice transplanter was explained, but it goes without saying that the present invention can also be applied to a riding type rice transplanter, which does not have the characteristics of a walking type.

(G) Effects of the invention As mentioned above, the present invention has an apron 10 for receiving seedling soil on the sending side of the seedling stand 8 which reciprocates laterally and is composed of a plurality of seedling stands. The delivery band 13 is stretched on the bottom of the table 8 by upper and lower rollers 34, 35, and the apron 1 is placed on the side of the seedling tray.
In the seedling planting machine equipped with a scraper 45 that slides into contact with the seedling plant, the bearing member that bears the rollers 34, 35 and the guide member that holds the scraper 45 so as to be movable back and forth are configured in an integrated support guide member 46.
A support member that pivotally supports the delivery belt 13 and a scraper 45
and the guide member 46 can be manufactured all at once as an integrated support guide member 46, and when attached to the seedling stand 8, it can be attached extremely easily and quickly as a single member. 46 extends from the sending end of the seedling stand 8 to above the delivery band 13 and is integrated with the seedling stand 8, so that the seedling stand 8 can be reinforced.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a front view of the seedling delivery locking device in the rice transplanter, Figure 2 is a side view of the same, Figure 3 is a perspective view of the support guide member, and Figure 4 is a rear view of the upper connection part of the support guide member. , Fig. 5 is a side view of the intermittent drive device, and Fig. 6 is a side view of the intermittent drive device.
Figure a is a side view of the tip of the regulating rod, b is a plan view of the same as above,
FIG. 7 is a side view of another example of the configuration of the tip of the regulating rod, FIG. 8 is a bottom view of the seedling sending device, and FIG. 9 is a side view of the rice transplanter. 8... Seedling stand, 9... Planting rod, 10... Apron, 13... Delivery belt, 14... Side wall, 15... Partition wall, 23... Regulating rod, 34, 35... Roller,
36...Intermittent drive shaft, 44...Shaft, 45...Scraper, 46...Support guide member.

Claims (1)

[Scope of utility model registration request] An apron 10 for receiving seedling soil is disposed on the delivery side of a seedling platform 8 that reciprocates in the horizontal direction and is composed of a plurality of seedling trays, and a delivery band 13 is attached to the bottom of the seedling platform 8 by upper and lower rollers 34. , 35, and is provided with a scraper 45 on the side of the seedling mounting portion that slides into contact with the apron 10.
A seedling mounting stand for a seedling planting machine, characterized in that a bearing member for bearing the scrapers 4 and 35 and a guide member for holding the scraper 45 so as to be movable back and forth are configured into an integrated support and guide member 46.