JP2009065893A - Transplanter - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a transplanter making a claw-opening and closing mechanism for opening and closing a transplanting claw by a relative transfer of an inducing tube and an outer tube, as a simple and low-cost constitution integrated to the transplanter as compact, forming the whole constitution of the transplanter as a form along with the outer form of the outer tube and inducing tube, and capable of installing the claw-opening and closing mechanism as without protruding widely from the outer form. <P>SOLUTION: This transplanter 1 installed with a transplanting claw 5 that receives a seedling in the inducing tube 2 for guiding the supplied seedling in lower direction and discharge-supplying it into soil, as freely opening and closing is provided by fitting the outer tube 4 at the outside of the inducing tube 2 as being freely relatively transferrable, and installing a claw-opening and closing mechanism 6 for opening and closing the transplanting claw 5 by the relative transferring operation of the inducing tube 2 and outer tube 4. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a planting device in which planting claws are provided on a guide tube that guides seedlings such as seedlings, seed pods, and germinating stems and trunks downward.

Conventionally, seedlings inserted and fed into the guide tube are guided downward, and the planting claws (seeds, seedling derivation guide members) provided at the lower part of the guide tube are opened and closed to be discharged and supplied into the ground to plant and sow seedlings. A planting device for performing the above-mentioned is already known as shown in Patent Document 1.
This planter is provided with an operation lever on a gripping member protruding from the upper part of the guide tube, and is provided with a claw opening / closing mechanism for opening the planting claw through an operating rod by a gripping operation of the operation lever.
Japanese Utility Model Publication No. 62-190413

The planter of the above-mentioned patent document 1 has a worker holding a holding member in a standing position, inserting a planting claw into the ground, and then moving the planting claw to open a seedling in a planting hole formed by the planting claw. Since it is made to land, there is an advantage that the planting work can be easily performed without bending the waist. However, since this planter has a structure in which an operation lever of a claw opening / closing mechanism projecting outside the guide tube and a link member such as an actuating rod connecting the planting claws are projected largely outside the tube. There are problems such that it is difficult to perform the planting work adapted to the site by restricting the direction in which the operator is used, and the operator's body is likely to come into contact with protrusions such as link members.
Also, if you want to place the planter on the ground temporarily during the planting operation, soil and weeds are likely to adhere to the projections such as link members, and when the deposit resumes the planting operation. There are disadvantages that hinder the opening and closing operation, and problems such as complicated maintenance work such as removal of deposits and cleaning.

  Firstly, the planter for solving the above problems is a planting in which the seedlings are discharged and supplied to the guide tube 2 that guides the supplied seedlings downward. In the planter 1 provided with the claw 5 so as to be freely opened and closed, the outer cylinder 4 is externally fitted to the guide cylinder 2 so as to be relatively movable, and the planting claw 5 is opened and closed by a relative movement operation between the guide cylinder 2 and the outer cylinder 4. A claw opening / closing mechanism 6 is provided.

  Secondly, the planting claw 5 is opened and closed by reciprocating the outer cylinder 4 in the axial direction relative to the guide cylinder 2.

  Thirdly, a planting claw 5 is provided at the lower end of the guide tube 2 so as to be able to swing open and close, and an operating rod 9 that protrudes from the top of the planting claw 5 and swings together with the planting claw 5 is provided on the outer tube 4. It is characterized in that it is accommodated and covered in the lower end portion of the.

  Fourth, the first gripping portion 23 for gripping operation that makes a pair in the upper and lower sides on the outer periphery on the upper end side of the guide tube 2 and the outer tube 4 and relatively moves in the axial direction of the guide tube 2 and the outer tube 4. The second grip portion 25 is provided.

  Fifth, a spring 26 is provided between the guide tube 2 and the outer tube 4 to urge the outer tube 4 in a direction in which the planting claws 5 are placed in the closed posture.

The above-described planting device has the following effects. The guide cylinder and the outer cylinder are relatively movable in the axial direction, and the claw opening and closing mechanism is operated by the relative movement of both cylinders to open and close the planting claw. Therefore, the claw opening and closing mechanism is compactly integrated at the bottom of the planting device. A simple and inexpensive configuration can be achieved.
Since the whole is cylindrical, there is an advantage that deep insertion from the planting claws into the soil is easy, the posture after the seedling is released is easily held in the cylinder direction, and the outer cylinder is easily lifted and lowered. Moreover, since the claw opening / closing mechanism is provided without projecting greatly from the outer periphery, the claw opening drive after being inserted into the soil is easy to perform and handling is also easy.

  Since the planting claw is opened and closed by the operation of reciprocating the outer cylinder in the axial direction relative to the guide cylinder, the operation is smooth and simple. The planting claw can be provided in communication with the lower side of the guide tube, and the supplied seedlings can be smoothly guided from the guide tube to the planting claw. Further, since the outer cylinder is moved and operated with respect to the guide cylinder, the planting claws can be opened and closed while being supported without moving the planting claw up and down on the guide cylinder, so that the seedling can be planted with high accuracy. Since the nail opening / closing mechanism is operated by opening and closing the outer cylinder inserted in the guide cylinder with the planting nail to open and close the planting nail, the cylinder shaft body with the nail opening / closing mechanism housed in the planting device is obtained. For this reason, the claw opening / closing mechanism can be compactly arranged with a good appearance at the lower part of the planter and can be easily handled.

  The gap formed between the lower end of the guide tube and the upper end of the planting claw is covered by an outer tube that moves relative to the axial direction in the closed state of the planting claw, so that the planter lies on the ground Even if left unattended, it is possible to prevent soil from entering from the gap. Further, the outer cylinder can prevent the upper end of the planting claw from being deformed.

  The first gripping part and the second gripping part for gripping operation, which are provided so as to be paired up and down on the left and right on the upper end side of the guide cylinder and the outer cylinder, 2 The gripping part can be gripped at the same time, the planting claws can be inserted into the ground and seedlings can be discharged and supplied, and the planting work can be performed efficiently while improving the planting accuracy of the seedlings. it can.

  By providing a spring that urges the planting claw in the closed position between the guide tube and the outer tube, the planting claw that has been opened can be closed quickly and easily by the urging force of the spring. Work can be continued efficiently.

  An embodiment of the present invention will be described with reference to the drawings. FIG. 1 is a side view showing the entire structure of the planter of the present invention, and FIG. 2 is a front sectional view of FIG. FIG. 3 is a front sectional view showing a planting posture in which a seedling is planted by inserting the planter 1 of FIG. 2 into the ground. FIG. 4 is a front sectional view showing an enlarged configuration of the main part of FIG.

  This planter 1 is a manual operation type that is used by an operator in a standing position. A guide tube 2 that inserts and supplies seedlings from above and guides them downward, and receives seedlings in the lower part of the guide tube 2 so as to enter the ground. The planting part 3 to be supplied, the outer cylinder 4 that is fitted on the guide cylinder 2 and is slidable in the axial direction, and the planting claw 5 of the planting part 3 by the relative movement of the outer cylinder 4 and the guide cylinder 2 And a claw opening / closing mechanism 6 that opens and closes. The planting claw 5 has a structure that opens and closes like a cone with a downward cone or pyramid made of a plurality (a pair in this example) of claw pieces, and can be inserted into the soil and opened and closed in the soil. Easy structure.

  The planter 1 in the illustrated example has a guide tube 2 formed of a pipe material having an inner diameter of about 60 mm and a length of about 950 mm, and can insert and supply seedlings from the opening 7 at the upper end. As shown in FIG. 4, a thick lower guide tube 2a is integrally formed at the lower end. The lower guide cylinder 2a has a slit 8 having a width of about 10 mm vertically formed at a position opposed to the diameter direction, and an operating rod 9 drilled upward in the slit 8 above the planting claw 5. The operating rod 9 is supported by a support shaft 11 so as to be swingable and rotatable.

  The operating rod 9 is provided on each claw piece, has a U-shape when viewed from the front as shown in FIG. 2, and has a guide portion 12 accommodated along the slit 8 in the closed position of the planting claw 5. And an operating portion 13 having a length that is bent from the upper portion of the guide portion 12 with a predetermined inclination angle and protrudes to the outside of the outer cylinder 4. And the stopper 16 which contact | connects the outer periphery of the operation hole 15 mentioned later formed in the outer cylinder 4 at the edge part of the action | operation part 13 is provided, and the opening upper limit of the planting nail | claw is controlled.

Further, the actuating rod 9 in the illustrated example is integrally protruded from the middle of the support piece 17 provided for reinforcement at each upper end portion of the claw piece of each planting claw 5, and the support piece 17 is provided in the lower guide tube 2a. It is formed in a semicircular arc shape along the peripheral wall.
And the planting claw 5 formed in a left-right symmetric shape is suitable for transplanting a peony seedling having a length of about 120 to 150 mm, for example, having a length of about 230 mm and having a V-shaped cross section in plan view. It has a sharp shape that converges downward. As a result, both planting claws 5 can have a sharp shape that can be easily inserted into the ground when the heel is closed in the closed posture, and when the heel is opened in the planting posture inserted into the ground, This is a structure in which the portion opens to the extent that it is substantially equal to the inner diameter of the guide tube 2.

The outer cylinder 4 is externally fitted to the guide cylinder 2 so as to be relatively movable, and a lower outer cylinder 4a having a diameter that is fitted to the lower guide cylinder 2a is connected to a lower end portion. The lower outer cylinder 4a is formed with an operating hole 15 for projecting the operating portion 13 of the operating rod 9 in the shape of a long hole facing the slit 8, and the operating portion 13 of the operating rod 9 is connected to the lower portion of the operating hole 15. A large-diameter ring-shaped contact portion 21 is provided.
The slit 8 in the illustrated example is also drilled in a part of the guide cylinder 2 where the lower guide cylinder 2a is joined, and the operation hole 15 is formed in a part of the outer cylinder 4 where the lower outer cylinder 4a is joined. Is also drilled. The operating rod 9 inserted into the slit 8 and the operating hole 15 regulates the relative movement of the guide tube 2 and the outer tube 4 in the circumferential direction.

  As described above, the planter 1 in which the claw opening / closing mechanism 6 is configured in the lower part of the guide tube 2 and the outer tube 4, in this embodiment, as shown in FIGS. A portion 22 is provided. The operation portion 22 includes a first grip portion 23 projecting in the diameter direction on both sides of the upper end of the guide tube 2 and a second grip portion 25 projecting on both sides of the upper end of the outer tube 4. In addition, a coiled spring 26 is fitted between the first gripping portion 23 and the second gripping portion 25 in the guide tube 2, and the outer tube 4 is pushed and urged downward. The claw 5 is urged in the closing direction.

  And the operation part 22 of the example of illustration protrudes in the radial direction symmetrical position of the attachment ring 27 which carried out the 1st holding part 23 and the 2nd holding part 25 to the guide cylinder 2 and the outer cylinder 4, respectively, and was fixed, and The first grip portion 23 and the second grip portion 25 that form a pair in the upper and lower directions are determined to have a positional relationship that can be gripped and gripped simultaneously with the left and right hands.

  As a result, the standing worker can hold the first holding part 23 projecting left and right with both hands, so that the planter 1 can be lifted in a stable posture and can be easily positioned with respect to the planting position. The planting part 3 can be easily inserted into the ground with the power of both hands. In addition to being able to be inserted into the soil by hand as described above, this planter may have a structure in which a protrusion serving as a pedal is provided on the outer periphery of the lower part of the outer cylinder 4 so as to be stepped on and inserted.

  When both hands holding the first gripping portion 23 and the second gripping portion 25 are gripped in this planting posture, the second gripping portion 25 is moved against the spring 26 with the first gripping portion 23 on the guide tube 2 side as a support point. It can be pulled up easily. As a result, the outer cylinder 4 can be slid up along the guide cylinder 2, and the claw opening / closing mechanism 6 can be operated by the upward movement of the outer cylinder 4 to open the left and right planting claws 5 simultaneously.

  At this time, the claw opening / closing mechanism 6 is in the closed posture of the planting portion 3 shown in FIG. 2, and the operating rod 9 accommodates the guide portion 12 in the stopper 16 and is substantially flush with the inner peripheral surface of the guide tube 2. Therefore, it is possible to prevent the seedling supplied from above from being caught and pass it smoothly to reach the planting unit 3. Next, when the outer cylinder 4 is moved upward by the above operation as shown in FIG. 4, the outer inclined surface of the operating part 13 protruding from the operating hole 15 of the outer cylinder part 21 is caused by the contact part 21 provided on the outer cylinder 4. Since it is pushed, the operating rod 9 can be rotated inward with the support shaft 11 as a fulcrum, and the planting claw 5 can be opened outward. Further, the upper limit of opening of the planting claw 5 is regulated by the position where the stopper 16 contacts both sides of the operating hole 15.

  When the gripping operation of the second gripping portion 25 is released, the upper end of the operating hole 15 presses against the inner inclined surface of the operating portion 13 based on the downward movement of the outer cylinder 4, so that the operating rod 9 rotates outward. The planting claw 5 can be closed to the closed position. This closing operation of the planting claw 5 can be performed at a timing when the planting part 3 is pulled out to the ground surface and separated from the seedling foliage part in a state where the seedling root part has landed in the planting hole formed by the planting part 3. desirable.

  The planter 1 configured as described above closes the seedling through the guide tube 2 when supplying the seedling into the opening 11 with the other hand while holding the first gripping portion 23 with one hand. It reaches the narrow space formed by the planting claws 5 in the posture and is stably held in the planting posture. Next, the operator grips the left and right first gripping portions 23 with both hands and inserts the planting portion 3 into the ground, and then grips the first gripping portion 23 and the second gripping portion 25 with both hands and raises the outer cylinder 4. .

As a result, the planting claw 5 can move only the outer cylinder 4 while being inserted and held at a fixed position via the guide cylinder 2, and can stand without disturbing the planting position and planting posture of the planting part 3. The posture can be maintained and the left and right planting claws 5 can be moved equally, and the root of the seedling can be landed in the hole formed in the ground in the opened posture. Next, the operator pulls out the planter 1 upward while holding the first gripping part 23 and the second gripping part 25 with both hands, thereby separating the seedling nail 5 from the seedling while maintaining the open posture.
After this, the soil can be easily gathered and the seedling planting operation can be completed. When the hand is released from the second gripping portion 25, the outer cylinder 4 is lowered and returned by the urging force of the spring 26 under its own weight. By quickly closing the claw 5, the next planting operation can be continued efficiently. Soil-carrying (covering) is only necessary for the planting device in which the tip of the planting device is inserted.

  In such a planting operation, the nail opening / closing mechanism 6 is operated to open / close the planting claw 5 by operating the nail opening / closing mechanism 6 by inserting and inserting the outer cylinder 4 into the guide cylinder 2 provided with the planting claw 5. It can be stored in the planter 1. Therefore, since this planter 1 becomes a cylindrical shaft body without a large protrusion other than the upper first gripping portion 23 and the second gripping portion 25, the link member of the claw opening / closing mechanism 6 protrudes greatly on the outer periphery of the tube. It can be manufactured with a simple and inexpensive structure, and it is easy to handle and can be used safely.

  In the closed position, the planter 1 is configured such that the upper portion of the planting claw 5 provided at the lower end portion of the guide tube 2 is accommodated in the lower end portion of the outer tube 4. Since the gap formed between them is covered, even if the planter 1 is laid down on the ground and left unattended, the soil can be prevented from entering through the gap and the soil removal operation can be omitted. Further, the upper end portion of the planting claw 5 covered with the lower end of the outer cylinder 4 prevents contact deformation and breakage with other objects when left unattended, and moves upward by an opening operation, thereby preventing the planting claw 5 from opening and closing. Therefore, there is an advantage that the planting operation can be resumed smoothly.

  In the illustrated example of the planter 1, the spring 26 is provided between the guide tube 2 and the outer tube 4 to urge the planting claw 5 to the closed position. It is desirable to increase the weight of the outer cylinder 4 to promote downward sliding movement. Moreover, although the planter 1 of embodiment showed the structure which opens and closes the planting nail | claw 5 by making the relative movement of the induction | guidance | derivation cylinder 2 and the outer cylinder 4 into an axial direction, for example, the outer cylinder 4 is set to the outer periphery direction with respect to the induction cylinder 2. A claw opening / closing mechanism that opens and closes the planting claw 5 by a pivoting motion can be configured.

  Further, the planting device 1 can be mounted on a traveling work machine with the gripping portion and the like removed, so that the guide tube 2 and the outer tube 4 can be moved relative to each other by power to perform the planting operation. The present invention can also be applied to a riding planting machine or the like in which the portion is provided in the opening of the guide tube 2. Also, in Fig. 3, the planting claws are shallowly inserted into the soil, but in general, the entire planting claws may be inserted deeply depending on the crop because they are planted in a field that has been cultivated and planted. But it can be done relatively easily.

It is a side view which shows the whole planter structure concerning this invention. It is a front sectional view which shows the accommodation posture of the seedling of FIG. It is a front sectional view which shows the planting operation | work which inserted the planter of FIG. 2 in the ground. FIG. 4 is a front sectional view showing an enlarged configuration of a main part of FIG. 3.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Planter 2 Guide cylinder 3 Planting part 4 Outer cylinder 5 Planting claw 6 Claw opening / closing mechanism 7 Opening part 9 Actuation rod 23 1st holding part 25 2nd holding part 26 Spring

Claims (5)

  A planting device in which a planting claw (5) that supplies and discharges the seedlings with the guided seedlings inserted into the soil is openable and closable in the guide cylinder (2) for guiding the supplied seedlings downward ( In 1), the outer cylinder (4) is fitted on the guide cylinder (2) so as to be relatively movable, and the planting claw (5) is opened and closed by the relative movement operation of the guide cylinder (2) and the outer cylinder (4). A planter provided with a nail opening and closing mechanism (6).   The planter according to claim 1, wherein the planting claw (5) is opened and closed by reciprocating the outer tube (4) in the axial direction relative to the guide tube (2).   A planting claw (5) is provided at the lower end of the guide tube (2) so that it can be opened and closed, and an operating rod (9) that projects from the top of the planting claw (5) and swings with the planting claw (5). ) In the lower end of the outer cylinder (4) to cover and cover the planter.   A first gripping operation is performed in which the upper and lower outer peripheries of the guide tube (2) and the outer tube (4) are paired up and down and are relatively moved in the axial direction of the guide tube (2) and the outer tube (4). The transplanter according to claim 1, 2 or 3, wherein one gripping part (23) and a second gripping part (25) are provided.   The spring (26) which urges | biases an outer cylinder (4) in the direction which makes a planting nail | claw (5) into a closed position between the induction cylinder (2) and the outer cylinder (4) is provided. Or 3 or 4 planters.

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