JPH0724492B2 - Planting device in seedling transplanter - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a planting device in a seedling transplanting machine, and more specifically, at a seedling planting position where a planter descends, seedlings held by the planter are forced into the soil. The present invention relates to a planting device in a seedling transplanter that can be pushed out for reliable planting, and at the seedling feeding position where the planter has risen, the seedling holding claws can hold the seedlings in a timely manner.

Conventional technology Generally, a planter that rotates in conjunction with the traveling of the aircraft is provided,
A seedling transplanter is known in which the seedlings held by the seedling holding claws at the elevated position of the planter are planted in the field at the planting position where the planter descends. ,
A seedling holding claw that opens when it is pulled up to the planter side in conjunction with the rotation of the planter is provided, and the seedling holding claw opens and closes at the planter's lowered position, the held seedling is detached and planted in the field, then rises. The seedlings are supplied to the seedling holding claws that are opened and closed at the position.

The problem to be solved by the present invention is that when the planter descends to the planting position,
With the conventional ones in which the seedlings are detached by simply opening and closing the seedling holding claws, the detachment of the seedlings becomes uncertain and the seedlings often lift up with the planter, resulting in a decrease in planting accuracy. At the elevated seedling feeding position, it is difficult to feed the seedlings to the seedling feeding claws that immerse and open on the planter side in a timely manner, and there is a risk that the seedlings may be missed by mistake, resulting in stock stalls. there were.

The present invention was devised to solve the above problems, and its purpose is to forcibly push the seedlings held by the planter into the soil at the planting position where the planter descends. Seedlings can be planted reliably, and at the seedling supply position where the planters have risen, seedlings can be supplied in a timely manner, and the seedlings can be transplanted smoothly without accidentally causing stalls. There is an attempt to provide a planting device in a seedling transplanting machine.

Means for Solving the Problems In order to solve the above-mentioned problems, the technical means adopted by the present invention is to provide a planter that rotates in association with the traveling of the machine body, and a seedling holding claw is provided at a raised position of the planter. In the seedling transplanter that is designed to plant the retained seedlings in the field at the planting position where the planter descends, in the opening and closing mechanism that opens and closes the seedling holding claw, the seedling support part that emerges from the planter in conjunction with the opening and closing operation. At the planting position where the seedling holding claw is opened in conjunction with the planter descending, the seedling support part protruding from the planter forcibly pushes out the supported seedlings to plant in the soil and raises the planter. In the seedling supply position, the protruding seedling support portion is made to support the seedling, and the seedling holding claw is configured to hold the seedling in conjunction with the seedling supply operation of pushing it back to the planter side. .

Effect of the Invention Since the present invention employs the technical means as described above, when transplanting seedlings, first, when the machine body is run, the planter holding the seedlings rotates in conjunction with the running of the machine body. The opening / closing mechanism opens the seedling holding claws in conjunction with the planter descending to the planting position.At this time, the seedling support part projects from the planter in conjunction with the operation of the opening / closing mechanism, forcing the supported seedlings. Since the seedlings are pushed out into the soil, the seedlings can be planted reliably without lifting up with the planters. Then, when the planter rises and the seedling feeding position, the seedling is supported by the seedling support part projecting from the planter and pushed back to the planter side. Therefore, the seedling transplant work can be smoothly performed without losing the timing and holding the seedlings.

EXAMPLE An example of the present invention will be described in detail with reference to the attached drawings of a sweet potato seedling transplanter. Reference numeral 1 denotes a machine body frame having front wheels 2 and rear wheels 3 and an engine 4 mounted on a rear portion thereof.
The rotary shaft 5 is provided in the width direction of the machine body frame 1 and is located between the front wheels 2 and the rear wheels 3. The rotating shaft 5
Is connected to a transmission mechanism that transmits the power of the engine 4 to the rear wheels 3 via pulleys, chains, etc., and rotates in the same direction as the rear wheels 3 in conjunction with the traveling of the airframe.

Reference numeral 6 denotes a planter arm radially protruding from the rotary shaft 5. A planter 8 is attached to the planter arm 6 via a parallel link 7 pivotally attached to the tip end side of the planter arm 6. 8 is in contact with a guide surface of a cam body 9 arranged coaxially with the rotating shaft 5 via a roller 10 and is elastically supported in a pressing manner by a spring (not shown). Further, the cam body 9 is formed with a linear portion 9a for guiding and guiding the rotating planter 8 from the vicinity of the lowermost position thereof toward the rotating shaft 5 side, and the side plates 11, 11 on the outer periphery of the planter 8 are formed.
The seedling holding surface 12 that holds the sweet potato seedlings a formed between them forms a boat-bottom type running locus at the planting position.
Further, on the upper side of the cam body 9, there is formed a bulging portion 9b directed upward and forward, so that the bulging portion 9b guides the raised planter 8 so that the planter 8 can be held for a long time in a raised position where seedlings can be easily supplied. It has become.

Reference numeral 13 is a seedling holding claw that holds the root portion of the sweet potato seedling a, and is a pair of claw pieces 15 and 15 made of an elastic body attached to a holder 14 provided at the front end of the planter 8 in the rotation direction at a predetermined interval. The claw pieces 15 and 15 are formed with inclined portions 16 and 16 having a reduced facing distance on the tip side. Reference numeral 17 denotes an opening / closing mechanism that opens and closes the seedling holding claw 13 described above.
A rod 18 parallel to the rod 18 is mounted on the holder 14 so as to be slidable in the axial direction.
The sliding body 20 is formed so as to project between the opposing surfaces of the sliding body 20. When the rod 18 moves downward as shown in FIGS. 5 (a), (b) and (c), the sliding body 20 slides along the inclined portion 16. The seedling holding claw 13 is opened, and the nail pieces 15 and 15 are held by invading the tip side where the facing distance between the claw pieces 15 and 15 is reduced. When the claw pieces 15 and 15 move upward, the sweet potato seedling a is held by the elasticity of the claw pieces 15 and 15. The sliding body 20 is formed in a stepped shape as shown in FIG. 6 (a), the contact surface with the claw pieces 15, 15 is made small, and sand or the like is prevented from being caught. The sliding body 20 may be spherical as shown in FIG. 6 (b). On the seedling holding surface 12 side of the tip portion 19, a seedling support portion 21 having a concave portion 21a for mounting the sweet potato seedling a is formed.

Reference numeral 22 denotes a bell crank-shaped rotating arm, one end of which is pivotally connected to the base end portion of the rod 18 via a pin 23, and the other end of the rotating arm 22 is A fitting groove 24 is formed. Reference numeral 25 denotes a rotating arm having a pin 26 that is loosely fitted in the fitting groove 24 and protrudes from one end of the rotating arm 25. At the other end of the rotating arm 25, a roller 28 that comes into contact with a cam body 27 is attached. When the rotating planter 8 descends and reaches the planting position, the roller 28 contacts the cam body 27 and the rotating arm 25 rotates in the direction of arrow A, and in conjunction with this, the rotating arm 22. Rotates to push down the rod 18.

29 is a shake preventing bracket for the rod 18, 30 is an upper limit stopper, 31 is a lower limit stopper, 32 is a lock nut for fixing the tip 19 to the rod 18, 33 is a pillow for placing the tip of the seedling, and 34 is a leaf tip holding rubber.

In transplanting sweet potato seedlings with the above-mentioned structure, first, put sweet potato seedlings a along the seedling holding surface 12 of the planter 8,
The root part is held by the seedling holding claw 13 and the leaf tip is held by the rubber tip 34.
If you hold it and run the seedling transplanter, planter arm 6
The planter 8 attached to the car rotates in conjunction with the running of the aircraft,
In the lowered planting position, the roller 28 comes into contact with the cam body 27, and in conjunction with the rotation of the rotation arm 25, the rod 18 of the opening / closing mechanism 17 is interlocked.
, The sliding body 20 pushes the seedling holding claw 13 open to release the holding of the sweet potato seedling a, so that the planter 8 is guided and guided by the straight portion 9a of the cam body 9 to plant the sweet potato seedling a in a boat bottom shape. be able to. Then, at the same time when the sliding body 20 opens the seedling holding claw 13, the seedling support portion 21 protruding from the tip portion 19 of the rod 18 is formed.
Can project from the planter 8 and forcibly push the sweet potato seedling a into the soil, so that the sweet potato seedling a does not lift up with the planter 8 and the sweet potato seedling a can be planted with high accuracy. Then, at the seedling feeding position where the planter 8 is raised, the sweet potato seedling a is placed on the projecting seedling support portion 21 and can be held by the seedling holding claw 13 simply by pushing it back to the planter 8 side with a finger. Since the sweet potato seedlings a can be made to follow the seedling holding surface 12 as they are rotated, the sweet potato seedlings a can be supplied with sufficient time, and the timing of accidentally holding the sweet potato seedlings is lost as in the conventional case. Therefore, the seedling support portion 21 has the recess 21a, so that the sweet potato seedling a does not cause lateral displacement when it is pressed with a finger.

EFFECTS OF THE INVENTION In short, the present invention provides a planter that rotates in association with the traveling of the machine body, and the seedlings held by the seedling holding claws at the elevated position of the planter are planted in the field at the planting position where the planter descends. In the seedling transplanter that is attached, the opening / closing mechanism that opens and closes the seedling-holding claws is provided with a seedling support part that appears in and out of the planter in conjunction with the opening / closing operation, and the seedling-holding claws open in conjunction with the descending of the planter. In the attached position, the seedling support part protruding from the planter forces the supported seedling to be planted in the soil, and at the seedling supply position where the planter rises, the projecting seedling support part supports the seedling. Since the seedling holding claws are configured to hold the seedlings in conjunction with the operation of feeding the seedlings back to the planter side, at the planting position where the planter is lowered, the opening / closing mechanism opens the seedling holding claws and at the same time the seedling support part is opened. Rush from planter Since the seedlings are pushed out and forced out into the soil, the seedlings are not lifted up with the planter and can be planted at a predetermined planting depth with high precision. Furthermore, at the seedling feeding position where the planter is raised, the seedling is supported by the projecting seedling support part and pushed back to the planter side with the finger, and the claws hold the seedling, so it is possible to feed the seedling with margin. The present invention has a very useful new effect such that the seedling transplanter work can be carried out smoothly without losing the timing and failing to supply seedlings and causing a lack of stock.

[Brief description of drawings]

The drawings show an embodiment of a planting device in a seedling transplanting machine according to the present invention, wherein FIG. 1 is an overall side view, FIG. 2 is a side view of a planter, and FIG. 3 is a side view of essential parts. FIG. 4 is a plan view of the same as above, and FIGS. 5 (a), (b) and (c) are explanatory views of action, and FIG.
Figures (a) and (b) are perspective views of the sliding portion, and FIG. 7 is a perspective view of the seedling support portion. In the drawing, 1 ... Machine frame, 8 ... Planter, 13 ... Seedling holding claw, 17 ... Opening / closing mechanism, 21 ... Seedling support portion.

Claims (1)

[Claims] 1. A seedling provided with a planter that rotates in association with traveling of the machine body, and a seedling held by a seedling holding claw at a raised position of the planter is planted in a field at a planting position where the planter descends. In the transplanting machine, the opening and closing mechanism for opening and closing the seedling holding claw is provided with a seedling support part that appears and disappears from the planter in conjunction with the opening and closing operation, and at the planting position where the seedling holding claw opens in conjunction with the descending of the planter, The seedling support part protruding from the planter forcibly extrudes the supported seedling and planted it in the soil, and at the seedling supply position where the planter rises, the projecting seedling support part supports the seedlings to the planter side. A planting device in a seedling transplanter, characterized in that the seedling holding claws are configured to hold seedlings in conjunction with the pushing back seedling supply operation.