JP3004901U - Suppressor for seedling transplanter - Google Patents

Abstract

(57) [Summary] [Purpose] To provide a crushing device for a seedling transplanting machine, which can obtain a sufficient crushing effect in any soil. [Structure] The seedlings 3 are mounted in a transplanter for transplanting by feeding them in the soil 2 in the longitudinal direction. The drive means 50 having the link 52 drives the turntable 51 to move the entire main body 20 up and down. The main body 20 is at the upper end position during the operation of planting the seedlings 3, but when the seedlings 3 are completely planted, the main body portion 20 descends to the lower end position shown in the figure.
At this time, the lower end of the crushing part 10 comes to the upper surface position of the soil around the transplanted seedlings 3. Motor 31, eccentric cam 33,
When the pressure suppression unit 10 is vibrated at a frequency of about 2 to 80 Hz by the vibrating means 30 having the cam plate 34, the peripheral portion of the seedling 3 is effectively suppressed. After the crushing operation, the entire main body 20 is moved to the upper end position again to prepare for the next planting of seedlings.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention is mounted on a crushing device for a seedling transplanter, particularly a transplanter that transplants seedlings into the soil in the longitudinal direction to remove soil around the seedlings transplanted in the soil. The present invention relates to a device for performing a squeezing operation for compaction.

[0002]

[Prior art]

 Many edible plants, such as rice, sweet potatoes, green onions, and Chinese chive, have a method of planting seedlings in a field and cultivating them. For example, in the cultivation of sweet potatoes, seed potatoes are laid down in a hotbed to grow seedlings, which are then planted in ridges. Normally, seedlings are often planted at intervals of 30 cm to 45 cm on a ridge formed into a mountain shape with a height of 25 cm to 30 cm. In order to efficiently perform such seedling planting work, automatic seedling transplanters have been developed. For example, Japanese Patent Application No. 5-197853 discloses a transplanter for automatically transplanting sweet potato seedlings. Such a transplanter has a mechanism for feeding seedlings into the soil in the longitudinal direction, and is capable of continuously performing transplanting work of seedlings at regular intervals while moving.

[0003]

[Problems to be solved by the device]

 When the transplanting work is performed by the above-mentioned automatic transplanter of seedlings, there is a possibility that a cavity may be formed at the implanting part. That is, in the transplanter, the seedlings are planted by piercing the roots of the seedlings into the soil while feeding them out in the longitudinal direction. At this time, because the seedling approach path is formed by scraping the soil in the soil, a cavity is created in the portion where the soil has been scraped. The generation of such cavities is an undesirable factor because it hinders the growth of seedlings. In other words, it is impossible to ingest water and nutrients from the cavity, which hinders sufficient growth. If a large number of such cavities occur, the seedlings will die on the way.

In order to deal with such a problem, after seedlings are planted by an automatic transplanter, the wheels around the seedlings are dragged so that the soil around the seedlings is stomped to eliminate the voids. Although treatment has been proposed, the current situation is that a sufficient suppression effect has not been obtained. In particular, in the case of sandy soil or viscous soil, it is difficult to sufficiently suppress the cavity portion generated in the planting part by the conventional method of suppressing pressure.

Therefore, an object of the present invention is to provide a pressure-reducing device for a seedling transplanter, which can obtain a sufficient pressure-reducing effect in any soil.

[0006]

[Means for Solving the Problems]

 (1) The first aspect of the present invention is mounted on a transplanter for transplanting by feeding the seedlings into the soil in the longitudinal direction, and compacts the soil around the seedlings transplanted in the soil. In a squeezing device for performing a squeezing operation, a squeezing section having a lower structure suitable for compacting soil, a main body supporting the squeezing section, and a vibration for vibrating the squeezing section vertically with respect to the main body. Means, a mounting means for movably attaching the main body part to the transplanter, and a first position where the pressure suppression part does not hinder the transplanting operation of the seedlings by the transplanter, and the transplanter is embedded in the soil. And a drive means for moving the main body part with respect to the transplanter so as to take at least two positions, that is, a second position where the soil around the seedlings can be compacted, and a second position where the soil can be compacted. is there.

(2) A second aspect of the present invention is the crusher for a seedling transplanting machine according to the above-mentioned first aspect, wherein the main body is vertically or diagonally up and down with respect to the transplanting machine by the attaching means. It is attached so that it can slide freely, and at the upper end position of the sliding path, the compression part takes the first position that does not hinder the transplantation operation, and at the lower end position of the sliding path, the compression part stamps the soil. And a lowering operation for sliding the main body from the upper end position to the lower end position by the drive means, and conversely, an ascending operation for sliding the main body part from the lower end position to the upper end position. It is intended to be executed.

(3) A third aspect of the present invention is the pressure reducing device for a seedling transplanting machine according to the above-mentioned second aspect, wherein the driving means has a predetermined function for causing the transplanting machine to transplant the seedlings into the soil. Is programmed so as to start the descending operation in synchronization with the timing of, and to start the ascending operation after a predetermined set time after the pressure suppressing section reaches the second position. It is programmed to vibrate the repressor while in position.

(4) A fourth aspect of the present invention is the pressure suppression device for a seedling transplanter according to the first to third aspects, wherein the vibrating means vibrates the pressure suppression part at a frequency of 2 to 80 Hz. It is the one.

[0010]

[Work]

 In the squeezing device for a seedling transplanter according to the present invention, since the main body part moves with respect to the transplanter, the squeezing part does not hinder the transplanting operation of the seedling by the transplanter, and the soil. Two positions can be taken: a second position where the soil around the seedlings transplanted can be compacted. When the transplanter is performing the work of feeding the seedlings and planting them in the soil, if the pressure suppression unit is held at the first position, the transplanting operation will not be hindered. Then, after the planting work is completed, the pressure suppressing operation can be executed by moving the pressure suppressing portion to the second position. Since the crushing part vibrates up and down with respect to the main body part, this vibration can effectively carry out the crushing motion of stepping on the soil around the seedling transplanted in the soil.

[0011]

【Example】

 Hereinafter, the present invention will be described based on illustrated embodiments. FIG. 1 is a diagram showing a basic configuration of a transplanter to which the crusher according to the present invention is applied. Here, a side view is shown in which the seedlings 3 are planted on the ridges 2 provided on the road surface 1. In the transplanter 100 shown here, an engine 120 is mounted on a frame 110 having a function as a trolley, and the drive wheels 130 are rotated by the power of the engine 120 to travel on the road surface 1. Although not shown in the figure, an operator actually rides on the transplanter 100 and operates the steered wheels 140 to control the traveling direction. The seedlings 3 are fed into the soil of the ridge 2 by the feeding device 150. The root of the seedling 3 is supported by a gutter-shaped support member 151, as will be described later, and the seedling 3 is inserted into the soil by feeding the gutter-shaped support member 151 into the soil. The crusher 160 is a device according to the present invention, and has a function of pressing the peripheral portion of the seedling 3 planted in the soil with the crusher 10. In FIG. 1, the feeding device 150 and the compression device 160 are not shown in detail, and only their rough outlines are shown.

FIG. 2 is a diagram showing a positional relationship between the ridge 2 and the drive wheels 130 in the transplanter shown in FIG. 1, and the transplanter 100 shown in FIG. 1 is viewed from the left side (front direction) of the figure. It shows the status. The ridge 2 is a ridge-shaped layer in which soil is formed into a mountain shape having a height of 25 cm to 30 cm, and the seedlings 3 are planted in the ridge 2. As can be seen from the positional relationship between the pair of drive wheels 130 and the ridge 2, the transplanter 100 travels along the ridge 2 while straddling the ridge 2. That is, in FIG. 1, the drive wheel 130 and the steering wheel 140 on the right side of the transplanter 100 are located on the other side of the ridge 2. The transplanter 100 travels to the left in FIG. 1 while straddling the ridge 2 in this way, and the planting work of the seedlings 3 is performed at regular time intervals along the route. Therefore, as shown in FIG. 1, the seedlings 3 are planted on the ridge 2 at regular intervals.

Next, the planting work of the seedlings 3 by the feeding device 150 will be briefly described. As shown in FIG. 3, in this transplanter 100, the seedling 3 is held by the seedling holding member 152 so as to be wrapped from below. A gutter-shaped support member 151 is connected to the lower end of the seedling holding member 152, and the lower part of the seedling 3 is supported by the gutter-shaped support member 151. The seedling holding member 152 is fed in the arrow direction in the figure by the feeding device 150 while holding the seedlings 3 in this manner. As a result, the gutter-shaped support member 151 digs a hole in the soil of the ridge 2, and forms an access path for the seedling 3. Next, as shown in FIG. 4, the seedling holding member 152 returns in the direction of the arrow, but the seedling 3 planted in the soil of the ridge 2 remains in the soil. This completes the work of planting one seedling 3. If the above-mentioned planting work is executed by the feeding device 150 at regular intervals while the transplanter 100 is running at a constant speed, the seedlings 3 will be planted on the ridge 2 at regular intervals. In order to securely hold the seedlings 3 during the work shown in FIG. 3 and to ensure that the seedlings 3 remain in the soil during the work shown in FIG. A mechanism is provided to do so.

However, when such planting is performed, there is a possibility that a cavity may be formed in the hatched portion of the soil in FIG. This is because the soil in the area where the seedlings 3 are planted is scraped up because the soil is scraped off to form the approach path for the seedlings 3. The cavities formed in such an area are not preferable because they interfere with the intake of water and nutrients of the seedling 3. The crushing device 160 performs a crushing operation of stepping on the soil around the seedling 3 in order to eliminate such a cavity.

FIG. 5 is a side view showing the overall configuration of the pressure suppressor 160 according to this embodiment. As shown in FIG. 1, the squeezing device 160 is used by being mounted on the transplanter 100. The main components of the compression device 160 are a compression part 10 having a lower structure suitable for compacting soil, a main body part 20 supporting the compression part 10, and a compression part 10 with respect to the main part 20 above and below. Vibrating means 30 for vibrating the body part 20, mounting means 40 for movably mounting the main body part 20 with respect to the transplanter 100, and drive means 50 for moving the main body part 20 with respect to the transplanter 100.

The compression unit 10 may be any structure as long as it has a lower structure suitable for compacting soil. In this example, a metal lump having a slightly rounded lower structure is used as the compression section 10, but any shape or material may be used as long as it has a function of compacting soil. .

The main body 20 has a support plate 21, a shaft 22, and a vibration plate 23 for supporting the pressure suppression unit 10. The shaft 22 is a column that supports the diaphragm 23 slidably in the vertical direction, and its upper end is fixed to the lower surface of the support plate 21. A through hole for inserting the shaft 22 is formed in the diaphragm 23, and the lower end of the shaft 22 is inserted through the through hole. The compression unit 10 is fixed to the lower surface of the diaphragm 23.

The vibrating means 30 has a motor 31, a rotating shaft 32, an eccentric cam 33, and a cam plate 34. The motor 31 is fixed to the lower surface of the support plate 21, and its power is transmitted to the rotary shaft 32 by a transmission mechanism such as a belt. The rotary shaft 32 is rotatably fixed to the support plate 21 by a structure (not shown). The eccentric cam 33 is a disk-shaped member, but has a bearing for the rotary shaft 32 at a position slightly deviated from the center. The lower part of the cam plate 34 is connected to the vibrating plate 23 and has an opening window accommodating the eccentric cam 33 so that the cam plate 34 is displaced along the eccentric cam 33. Therefore, when the motor 31 is rotationally driven, the eccentric cam 33 performs an eccentric rotational movement, and as a result, the cam plate 34 moves up and down. Eventually, this movement causes the diaphragm 23 to move up and down, and the pressure suppression unit 10 can be vibrated up and down.

The mounting means 40 is composed of a sliding column 41 and a support body 42. The lower end of the sliding column 41 is fixed to the upper surface of the support plate 21. The support body 42 has a through hole therein, and the support column 41 is inserted into the through hole. The support 42 itself is fixed to the transplanter 100. After all, the entire main body 20 is attached to the transplanter 100 so as to be vertically slidable. In this example, the sliding path is the vertical vertical direction, but it may be slanted slightly and slid vertically.

The driving means 50 is composed of a turntable 51, a link 52, mounting shafts 53 and 54, and a motor (not shown). The rotating shaft of the turntable 51 is fixed to the transplanter 100 by a structure (not shown). An upper end of a link 52 is rotatably fixed by a mounting shaft 53 to one place on the circumference of the turntable 51, and a lower end of the link 52 is rotatably fixed to the support plate 21 by a mounting shaft 54. ing. Therefore, when the turntable 51 makes a half turn from the position shown in FIG. 5, the link 52 is pushed down, and as shown in FIG. 6, the entire main body portion 20 moves downward, and when the turntable 51 makes one turn. , It will return to the original position as shown in FIG.

After all, due to the rotational movement of the turntable 51, the entire main body portion 20 including the pressure suppressing portion 10 reciprocates up and down. That is, when the turntable 51 is half-turned from the position shown in FIG. 5 to the position shown in FIG. 6, the lowering operation of sliding the main body portion 20 from the upper end position to the lower end position is performed, and the turntable 51 is moved to the position shown in FIG. A half rotation from the position shown in FIG. 5 to the position shown in FIG. 5 causes an ascending operation of sliding the main body 20 from the lower end position to the upper end position. At this time, at the upper end position, the pressure suppression unit 10 is positioned so as not to hinder the transplanting operation of the seedlings by the transplanter 100, that is, the operation of feeding the seedlings 3 and introducing them into the soil. At the lower end position, the positional relationship and dimensions of each part are appropriately designed so that the pressure suppressing part 10 is located at a position where the soil around the seedling 3 transplanted in the soil can be set.

The compression operation by the compression device 160 is performed as follows. First, while the feeding device 150 of the transplanter 100 is performing the work of feeding the seedling holding member 152 and planting the seedlings 3 in the soil, the turntable 51 is maintained at the position shown in FIG. Hold 10 in the top position. As long as it is at this upper end position, the pressure suppression unit 10 does not hinder the planting operation of the seedling 3. Then, when the seedlings 3 are planted, the rotating disk 51 is rotated half a turn to the position shown in FIG. 6, and the pressure suppression unit 10 is lowered to the lower end position. In this embodiment, the lower surface of the pressure suppressing portion 10 is lowered to a position where it is lightly contacted with the upper surface of the ridge 2. In this state, the motor 31 is driven to execute the pressure suppression operation. As described above, by driving the motor 31, it is possible to apply vertical vibration to the pressure suppression unit 10. Such vibration is very effective for compacting the soil in the peripheral area where the seedlings 3 are planted. In this way, when the pressure suppression operation is performed for a certain time (for example, 1 to 2 seconds), the motor 31 is stopped as necessary, the rotary disk 51 is rotated half a turn to the position shown in FIG. 5, and the pressure suppression unit 10 is moved to the upper end position. Rise to. This means that the plant has returned to its original state and one seedling has been planted and suppressed. If such an operation is repeated, the suppression operation will be executed every time a seedling is planted. That is, the main body section 20 alternately executes a descending operation of sliding from the upper end position to the lower end position and an ascending operation of sliding from the lower end position to the upper end position by the rotating operation of the turntable 51. become.

The driving operation of the turntable 51 may be performed in synchronization with the timing when the transplanter 100 transplants the seedlings 3 into the soil. For example, as shown in FIG. 4, when the feeding device 150 rotates the turntable 51 from the position shown in FIG. 5 at the timing when the operation of pulling back the seedling holding member 152 is started, the planting of the seedlings 3 is completed. Immediately after, the suppression action can be started. After that, when a predetermined time (for example, 1 to 2 seconds) has elapsed, the turntable 51 may be rotated from the position shown in FIG. 6 to the position shown in FIG. Since the pressure suppression unit 10 needs to vibrate at least during the pressure suppression operation, the motor 31 is operated only when the pressure suppression unit 10 is at the lower end position, and the motor 31 is stopped otherwise. The control may be performed, or the motor 31 may be operated at all times during the transplantation work so that the pressure suppression unit 10 is constantly vibrated. Such operation control can be programmed in the microcomputer.

The rotation speed of the motor 31 is appropriately set so that the vibration of the pressure suppression unit 10 has a frequency suitable for pressure suppression. According to the experiment conducted by the inventor of the present application, the most efficient compression effect was obtained when the compression unit 10 was vibrated at a frequency of 2 to 80 Hz. Therefore, when the rotation speed of the motor 31 is high, it is preferable to use a speed change device such as a gear to adjust the vibration in such a frequency range.

As described above, the compression unit 10 may be any structure as long as it has a lower structure suitable for compacting soil. FIG. 7 (a) is a side view of the compression unit 10 used in the above-described embodiment, and FIG. 7 (b) is a front view thereof. In this embodiment, a metal block having a slightly rounded lower structure is used as the compression unit 10. On the other hand, the compression section shown in FIG. 8 has a structure in which a via barrel-shaped compression wheel 16 is attached using a shaft 17 by a support body 15. FIG. 8 (a) is a side view and FIG. 8 (b) is a front view. In addition to this, a spool-shaped compression wheel may be used. In short, the compression part may be of any shape and of any material as long as it has the function of compacting the soil.

Further, in the above-described embodiment, the crusher of the present invention is mounted on the transplanter 100 shown in FIG. 1, but the crusher of the present invention is applicable to such a transplanter 100. The present invention is not limited, and in short, it can be applied to any other transplanting machine as long as it is a transplanting machine that transplants seedlings into the soil in the longitudinal direction.

[0027]

[Effect of device]

 As described above, the pressure suppression device for a seedling transplanter according to the present invention is provided with the mechanism for moving the pressure suppression unit and the mechanism for vibrating the pressure suppression unit, so that a sufficient pressure suppression effect can be obtained in any soil. it can.

[Brief description of drawings]

FIG. 1 is a diagram showing a basic configuration of a transplanter to which a pressure suppression device according to the present invention is applied.

2 is a diagram showing a positional relationship between a ridge 2 and a drive wheel 130 in the transplanter 100 shown in FIG. 1, showing a state where the transplanter 100 shown in FIG. 1 is viewed from the left side (front direction) of the figure. Shows.

FIG. 3 is a diagram showing a first half step of a seedling planting operation by the transplanter 100 shown in FIG.

FIG. 4 is a diagram showing a latter half step of planting work of seedlings by the transplanter 100 shown in FIG.

FIG. 5 is a view showing a state of a pressure suppression device according to an embodiment of the present invention at the time of planting work.

FIG. 6 is a diagram showing a state of the pressure suppressing device shown in FIG. 5 during a pressure suppressing operation.

7 is a diagram showing a structure of a pressure suppression unit 10 of the pressure suppression device shown in FIG.

FIG. 8 is a view showing the structure of a compression unit used in another embodiment of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Road surface 2 ... Ridge 3 ... Seedling 10 ... Suppression part 15 ... Support 16 ... Suppression wheel 17 ... Shaft 20 ... Body part 21 ... Support plate 22 ... Shaft 23 ... Vibration plate 30 ... Vibration means 31 ... Motor 32 ... Rotation Shaft 33 ... Eccentric cam 34 ... Cam plate 40 ... Mounting means 41 ... Sliding support 42 ... Support 50 ... Driving means 51 ... Rotating disc 52 ... Link 53 ... Mounting shaft 54 ... Mounting shaft 100 ... Transplanter 110 ... Frame 120 ... Engine 130 ... Driving wheel 140 ... Steering wheel 150 ... Feeding device 151 ... Trough-shaped support member 152 ... Seedling holding member 160 ... Squeezing device

Claims (4)

[Scope of utility model registration request] 1. A squeezing device for carrying out a squeezing operation, which is mounted on a transplanting machine for transplanting a seedling in the longitudinal direction toward the soil, for performing a squeezing operation to set the soil around the seedling transplanted in the soil. And a compression part having a lower structure suitable for compacting soil, a main body part supporting the compression part, a vibrating means for vibrating the compression part vertically with respect to the main body part, and the main body An attachment means for movably attaching the part to the transplanter; a first position where the pressure suppression part does not hinder the transplanting operation of the seedlings by the transplanter; Drive means for moving the main body part with respect to the transplanter so as to take at least two positions, namely, a second position where the soil around the seedlings can be compacted, and a second position. Suppressor for seedling transplanter. 2. The compression device according to claim 1, wherein the attaching means attaches the main body to the transplanter so as to be slidable vertically or diagonally up and down, and at the upper end position of the sliding path, The pressure-reducing portion takes the first position that does not hinder the transplantation operation, and at the lower end position of the sliding path,
The compression unit takes a second position where the soil can be compacted, and the drive means lowers the main body unit from the upper end position to the lower end position, and lowers the main body unit from the lower end position to the upper end position. A pressure suppression device for a seedling transplanter, characterized by alternately performing a sliding movement and a raising movement. 3. The compression device according to claim 2, wherein the drive means starts the descending operation in synchronization with a predetermined timing at which the transplanter operates to transplant the seedlings into the soil, and the compression portion is moved to the second position. Is programmed to initiate a raising movement after a predetermined set time after reaching the position of the oscillating means and the vibrating means is programmed to vibrate the crushing portion at least while the crushing portion is in the second position. A squeezing device for a seedling transplanting machine. 4. The pressure suppressor for a seedling transplanter according to claim 1, wherein the vibrating means vibrates the pressure suppressor at a frequency of 2 to 80 Hz.