JP3393015B2 - Rush planting machine - Google Patents

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transplantation of strawberries in which a support member for connecting a machine body to a support column is provided on the back of a seedling stand equipped with a conveyor belt for longitudinally feeding a seedling group to a lower seedling outlet. Regarding the machine.

[0002]

2. Description of the Related Art Conventionally, in this type of straw transplanter,
The conveyor belt was provided only on the lower half side of the seedling placing area in the seedling feeding direction on the seedling placing table. Therefore, in the above-mentioned conventional structure, it is only the lower half side of the seedling stand on which the conveyor belt is disposed that exhibits its conveying function, and the seedlings superior to the conveyor belt are used. The group had to be moved by sliding it on a seedling stand on a conveyor belt. Then, conventionally, a large number of seedlings separated from each other are moved together while sliding the seedling group placed on the seedling placing table to the conveyor belt from the rear end of the seedling group by pushing the plate member. It was done by adding.

[0003]

However, because of the above-mentioned structure, in the case of the conventional structure, when the seedling is supplied, the plate member for pushing the seedling is released from the normal pushing posture and the initial posture. Since it has to be put back in, the work is relatively troublesome, and a simpler structure has been desired.

The present invention has been made in view of the above circumstances, and an object thereof is to provide a strawberry transplanter having a simple structure and capable of easily supplying seedlings.

[0005]

[Means for Solving the Problems]

(Structure) The strawberry planter according to claim 1 of the present invention is equipped with a conveyor belt for longitudinally feeding a seedling group to a lower seedling take-out port, and the back part of a seedling stand in an inclined posture that intermittently reciprocates laterally from side to side. , the rush transplanter der provided with a supporting member for connecting the upper portion of the fixed posts
I, the conveyor belt, and the position near the exit preparative the seedlings of the seedling platform, disposed in a state of constituting the conveying path over and a position above said support member, said conveyor belt
Bracket that connects to the main body of the seedling stand straddling left and right
Mounted slidably to the left and right with respect to the support member
The characteristic configuration is that there is a mark .

(Operation) According to the structure of claim 1 of the present invention, the conveyor belt is
Inclination to reciprocate laterally intermittently left and right while straddling left and right
A bracket is provided on the back of the seedling stand for posture , and this bracket
Slide the left and right with respect to the fixed side support member.
It is attached freely , and the installation range of the conveyor belt for vertically feeding seedlings is set from above the support member to a position near the seedling take-out port. It will be located near the upper end that is the replenishment position, and even the one that is on the most transporting side of the replenished seedlings will be set so that it can be transported by the transport belt. There is no need for a plate member or the like that applies a pushing load for sliding the slide downward.

(Effect) Therefore, according to the construction of claim 1 of the present invention, since the plate member for pushing the seedling as in the conventional case is not required, the position of the plate member is changed one by one when the seedling is replenished. Since the operator does not have to perform the work, the work efficiency can be improved, and the structure for installing the plate member and the like is not required, so that the structure can be simplified and the cost can be reduced. .

(Structure) The strawberry planter according to claim 2 of the present invention is the device according to claim 1, wherein a cradle part on which a seedling group supply box can be placed is arranged at a position above the conveyor belt. The feature is that it is provided.

(Operation) According to the configuration of claim 2 of the present invention, since the pedestal portion for placing the seedling group supply box is arranged at a position above the conveyor belt, the conveyor belt is conveyed. It is not necessary to put the seedling feeding box directly on the belt.

(Effect) Therefore, according to the configuration of claim 2 of the present invention, since it is not necessary to directly mount a relatively heavy seedling group supply box on the conveyor belt at the time of seedling supply, the seedling group supply box It is possible to prevent the load from being applied to the conveyor belt.
It has become possible to avoid damaging the conveyor belt.

[0011]

BEST MODE FOR CARRYING OUT THE INVENTION Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows an example of a seedling planting device in a straw plant transplanter. The seedling planting device 1 is mounted on the rear end portion of the riding traveling machine body on the left side outside the drawing via a four-link mechanism 2 so as to be driven up and down. And
This seedling planting device 1 is configured for 6-row planting, and the straw-plant seedlings F divided into stocks are placed and intermittently laterally fed at predetermined pitches, and left and right with a constant stroke. A seedling stand 3 in a backward-downward tilted posture that is reciprocally moved laterally, a seedling planting device 5 as a planting mechanism for taking out and planting one seedling of seedling from a seedling take-out port 4 at the lower end of the seedling stand 3. It is provided with a transmission case D through which power for driving the seedling planting equipment 5 and the like is transmitted from the passenger traveling vehicle body, a grounding float 6 and the like for leveling the planting surface in the field.

As shown in FIG. 3, the seedling placing table 3 is configured for 6-row planting, which is provided with 6 rows of the respective seedling placement portions a corresponding to the planting row. A partition wall 7 for partitioning the seedling placing portions a inside the seedling placing base 3 is provided between the left and right ends of the seedling placing base 3.
In addition, each seedling placement section a is provided with a belt-type vertical feeding device 8 that sends the strawberries seedlings F to the seedling take-out port 4 side by a certain distance each time the seedling placing table 3 reaches the stroke end of the lateral movement. There is. In the figure, 70 is a sensor for detecting the seedling amount.

To form the seedling planting tool 5, a planting claw 9 for taking out and planting one seedling and a seedling pushing tool 10 for pushing out the seedling held by the planting claw 9 at the time of planting are provided on the planting arm 11. It is configured to plant the seedlings by drivingly rotating the planting claw 9 while passing through the seedling take-out port 4. Then, when the seedling is taken out, an auxiliary claw 12 is provided prior to the planting claw 9 to rush near the upper part of the picked portion of the strawberries seedlings F on the seedling stand 3 to ensure the separation of the seedlings.

As shown in FIGS. 1 to 3, each of the belt type vertical feeding devices 8 is provided with a drive pulley 13 located at a low position near the seedling take-out port 4 and a position substantially near the upper end of the seedling stand 3. A belt 15 for transportation is wound around the idler pulley 14 located in a stretched state. That is, the seedling placing table 3 itself is configured as a frame body in which frame members are vertically and horizontally connected, and each partition wall 7 is fixed to the vertical frame member 3A along the vertical direction, and the left and right vertical frames adjacent to each other are fixed. The drive pulley 13 and the idling pulley 14 are provided on the members 3A, 3A in a supported state, and the belt 15 is wound around the drive pulley 13 and the idling pulley 14.

Further, a support structure for supporting the seedling stand 3 on the machine body side is provided, which is opposite to the mounting of the seedling stand on the seedling stand 3. That is, seedling stand 3
In each of the vertical frame members 3A, the metal fittings 16 made of sheet metal are provided by bolting at the upper portion of the vertical frame material 3A opposite to the seedlings, and each of the metal fittings 16 is made of an aluminum drawing material along the left-right direction. The rail fittings 17 are connected with bolts. The mounting bracket 16 and the rail bracket 17 are
A bracket 18 is formed to straddle the conveyor belt 15 and connect to the frame structure as the main body of the seedling stand 3. Further, the guide groove 19 of the rail fitting 17 in which the guide groove 19 is formed along the left-right direction which is recessed upward.
A support member 21 made of a square pipe material having an engaged portion 20 that engages with is connected to the planting transmission case D by means of bolts 22 which are provided opposite to each other on the left and right sides. Although not described in detail, the lower part of the seedling stand 3 is also supported by the planting transmission case D by a rail structure so as to be slidable left and right.

Further, as shown in FIGS. 2 and 7, a horizontal frame member 3B connecting the upper end portions of the seedling stand 3 to the left and right,
A pedestal portion 24 made of a plate material on which a seedling group supply box 23 for supplying a seedling group to the seedling placing portion a of the seedling placing table 3 can be placed while keeping a load is provided by bolt fastening. The pedestal portion 24 is located above the upper end of the conveyor belt 15 and has an upper surface that is substantially along the conveyor surface of the conveyor belt 15. Therefore, when the seedling group is supplied to the seedling placement section a, as shown in FIG. 7, the load of the seedling group supply box 23 is placed in the state of being stored in the pedestal portion 24 and the seedling group supply box 23 is placed. After the seedling group supply box 23 is slid and loaded, the front wall 23f of the seedling group supply box 23 is swingingly lowered to be opened, and in this state, the seedling group supply box 23 is pulled out rearward so that only the seedling group is placed in the seedling placing section a. It is something to replenish above.

With the above-mentioned structure, the support member 21 for supporting the seedling stand 3 on the planting transmission case D as a fixed portion.
Since the upper end of the upper part of the conveyor belt 15 of the vertical feed belt transfer device 8 is set higher than the upper part of the upper part, the seedling placing part a in the seedling placing table 3 is set in the seedling placing table 3.
The seedling group can be vertically fed by the conveyor belt 15 over almost the entire range. Therefore, there is no need for a member for pushing the seedling group downward to assist the vertical feeding, which is structurally simple.

Next, the tension applying means 25 for applying tension to the belt 15 in the belt type vertical feeding device 8 will be described. As shown in FIG. 1 to FIG. 6, among the six belt type vertical feed devices 8 arranged side by side on the left and right sides, a pair of left and right three is respectively configured as a set so that tension can be applied. More specifically, a pair of left and right belt type vertical feed devices 8, 8
As a set, and the idler pulleys 14 and 14 corresponding to the set are externally fitted onto a single shaft body 26 so as to be integrally rotatable or freely rotatable, and both left and right end portions of the shaft body 26 and both A portion between the idler pulleys 14 and 14 is supported by a shaft support fitting 27 as shown in FIG. 6 so as to be rotatable around the horizontal axis P.
Here, a pair of left and right belt type vertical feed devices 8 and 8 are arranged side by side in three sets. And
The shaft 26 has both left and right ends thereof and both idle pulleys 1.
At a portion between Nos. 4 and 14, it is inserted into a guide notch groove 29 formed in a shaft guide metal fitting 28 fastened to each vertical frame member 3A along the vertical feed direction. The guide notch groove 29 allows the shaft body 26 to be slidably guided in the vertical feed direction and to be regulated in the direction orthogonal to the vertical feed direction. A pair of left and right vertical bar members 27B and 27B are provided on the horizontal bar member 27A constituting the shaft support fitting 27.
Is provided in a state where the drive pulley 13 extends to the crocodile, and a lateral pin 31 that locks one end of a spring 30 that applies tension to the belt 15 is continuously provided at the tip of each vertical bar member 27B, 27B. ing. This pin 31 is a vertical frame member 3
It is inserted into the guide notch groove 33 of the second shaft guide fitting 32 that is bolted to A. Notch groove 3 for this guide
3, the pin 31 is slidably guided in the vertical feed direction and its position is regulated in the direction orthogonal to the vertical feed direction. The same parts as 32 are used as shown in FIG. Further, in a state of being located between the shaft guide metal fitting 28 and the second shaft guide metal fitting 32, the second horizontally oriented pin 34 for locking the other end of the spring 30 is attached to the mounting metal fitting 16
It is connected by welding or the like. The spring 30 is composed of an extension spring, and is provided in a state of being located within the winding region of the belt 15 in a side view. That is, the spring 30 is positioned in a side view within a range surrounded by a transport action path for the seedlings of the belt 15 forming the endless rotation zone and a return route that returns to the transport action path on the back side of the transport action path. -ing
Further, in the shaft support metal fitting 27, the vertical bar member 27B is abutted against the second guide metal fitting 32 in the left-right direction even if the shaft support metal fitting 27 is improperly displaced to the left or right. , 32 is maintained in a fixed posture. Here, the second guide fitting 32 constitutes a lateral displacement restricting means, and the shaft support fitting 27 constitutes a belt tension member.

Next, the idle pulley 14 will be briefly described. As shown in FIG. 4, the idler pulley 14 of the belt-type vertical feeder 8 in the seedling placing portion a for one row has a single pulley member fitted onto the shaft body 26 so as to be freely rotatable. Instead, the pair of left and right pulley members 35, 35 having the same shape are fitted around the shaft body 26 in a freely contacting manner in a state of being in close contact with each other. As described above, the pair of left and right pulley members 35, 35 constitutes the idle pulley 14. When the idle pulley 14 made of a synthetic resin material is made of a single pulley member, the lateral width of the conveyor belt 15 is Is relatively large, so that the pulley material becomes a relatively long and complicated shape, the die for forming the pulley material becomes expensive, and the molding difficulty is high. In addition, as shown in FIG. 8, by forming a small diameter only near the abutting portion of the pair of left and right pulley members 35, 35, in accordance with the small diameter portion S, the belt is formed at the center of the left and right width on the inner surface side of the conveyor belt 15. It can also be configured to be capable of engaging and guiding the ridge 36 formed along the rotational direction, that is, the longitudinal feed direction. The drive pulley is also composed of a pair of left and right pulleys.

Next, the partition wall 7 will be briefly described. As shown in FIG. 1, the partition wall 7 is formed by processing a stainless steel plate material into a box-shaped sheet metal, and its upper end is closed by a synthetic resin cap 37 to improve the appearance. In addition, the generation of rust and the like on the partition wall 7 is suppressed.

Next, the cotter pin structure of the seedling planting tool 5 will be briefly described. As shown in FIG. 9, the auxiliary claw 12
A swinging arm 38 for swinging the shaft is extended rearward from each thread transmission case 39 (the above-mentioned transmission case D) and is rotatable about a horizontal axis Q in a case in which a chain transmission mechanism is installed. It is pivotal. The swing arm 38 is externally fitted to a rotary support shaft 40 which is axially supported by each of the transmission cases 39, and the rotary support shaft 40 and the swing arm 38 are fixed with a key 41 at a predetermined phase. is doing. Furthermore, the cotter pin 42 prevents rattling between the swing arm 38 and the rotation support shaft 40, which is insufficient with the key 41. That is, a pin hole 43 having a tapered taper is formed in the swing arm 38 in a state of partially intersecting with the rotation support shaft 40, and a cotter pin 42 having a tapered taper is fitted into the pin hole 43. . The cotter pin 42 is fitted and inserted through a screw hole of a nut 44 which is welded in advance to an inlet portion of the pin hole 43, and the cotter pin 42 is pushed into the pin hole 43 by a screwing operation of a bolt 45 fastened to the nut 44. There is. Since the cotter pin 42 can be pushed into the pin hole 43 by the screwing operation of the bolt 45, it is possible to work in a narrower space than when the cotter pin 42 is directly hit with a hammer or the like and fitted into the pin hole 43, which makes the work easier. ing.

Next, a mechanism for switching each belt type vertical feed device 8 between a drivable state and a drivable state will be described. As shown in FIGS. 4 and 5, the shaft support fitting 27
And a switching lever 55, which is supported on the rear surface of the seedling stand 3 so as to be swingable around an axis X orthogonal to the belt transport surface, by operating the switching lever 55, the idle pulley 14 drives the drive pulley. 13, a state in which the tension of the belt 15 is relaxed by displacing the belt 15 close to the belt 13 so that the rotational force of the drive pulley 13 is not transmitted to the belt 15, and the belt 15 is rotated so as to apply a tension force to the belt 15 by the urging force of the spring 30. The pulley 14 can be switched to a state in which the pulley 14 is positioned away from the drive pulley 13. More specifically, the switching lever 55 is the first from the left in the rear view when the three vertical frame members 3A are arranged side by side in which a pair of left and right belt type vertical feed devices 8 and 8 are arranged. A support pin 57 is provided along the axis X on a mounting bracket 56 that is erected and connected over the second one, and the support pin 57 is inserted into and engaged with a long hole 58 of a sheet-machined switching lever 55. A hole 59 provided near the elongated hole 58 is loosely fitted with a third pin 27C protruding from a central portion in the left-right direction of the horizontal rod member 27A of the shaft support fitting. A lever guide 60 made of a metal plate for guiding the switching lever 55 is connected to the erection metal fitting 56, and the lever guide 60 changes the position of the switching lever 55 between the belt loosening position and the belt tension position. Guide and switching lever 55 in both positions
To be able to hold. Furthermore, the switching lever 55
At the intermediate position of the belt-type longitudinal feed device 8, a bridging clutch for the set of longitudinal belt feeders 8 (the planting mechanism 5 corresponding to each planting article interposed in the transmission mechanism in the transmission case D). A wire stopper pin 62 for mounting a release wire 61 which is linked to operate for turning on and off). In the figure, 63
Is a slack prevention member made of sheet metal for receiving the relaxed belts 15 and restricting the slack so that the back surface of each belt 15 does not hang downward when the belts 15 are relaxed. The slack preventing member is not limited to the one made of sheet metal, but may be formed by welding a rod member or assembling it.

With the above structure, when the switching lever 55 is positioned at the lower holding position of the lever guide 60, the upper support is elastically urged by the urging force of the spring 30 to the upper side. This allows the belt 15
Is in a normal state in which the rotational force of the drive pulley 13 is transmitted to the belt 15. At this time, the planted clutch is also operated in the engaged state. On the other hand, when the switching lever 55 is positioned at the upper holding position of the lever guide 60, the spring 3
Since the shaft support fitting 27 is displaced to the lower side against the biasing force of 0, and the idler pulley 14 is located closer to the drive pulley 13, the tension of the belt 15 is relaxed. Therefore, the rotational force of the drive pulley 13 is not transmitted to the belt 15 due to slip or the like.

[Brief description of drawings]

FIG. 1 is a vertical sectional side view showing a strawberry transplanter.

[Fig. 2] Vertical side view showing the upper part of the seedling stand

[Figure 3] Rear view showing the seedling stand

FIG. 4 is a partially cutaway front view showing a belt tensioning structure for feeding seedlings on a seedling stand.

FIG. 5 is a vertical sectional front view showing a belt tensioning structure for feeding seedlings on a seedling stand.

FIG. 6 is a partially longitudinal front view showing a shaft support fitting.

FIG. 7 is a perspective view showing a supply box and the like for supplying seedlings.

FIG. 8 is a partially cutaway front view showing a belt tensioning structure for feeding seedlings according to another embodiment.

FIG. 9 is a partially cutaway side view showing an arm and the like for driving an auxiliary pawl.

[Explanation of symbols]

3 seedling stand 4 Seedling outlet 15 Conveyor belt 21 Support member 22 props 23 Seedling supply box 24 Cradle part

─────────────────────────────────────────────────── ─── Continuation of the front page (56) References JP-A-7-184435 (JP, A) JP-A-8-70633 (JP, A) Actual flat 4-80311 (JP, U) Actual flat 4- 129727 (JP, U) (58) Fields surveyed (Int.Cl. ⁷ , DB name) A01C 1/00 A01C 11/00-11/02

Claims (2)

(57) [Claims] 1. A back of an inclined seedling stand (3) equipped with a conveyor belt (15) for longitudinally feeding a seedling group to a lower seedling take-out port (4), and which is intermittently reciprocally moved left and right. A strawberry transplanter provided with a support member (21) connected to the upper part of a fixed support (22) , wherein the conveyor belt (15) is located near the seedling take- out port (4) of the seedling stand (3). And the position above the support member (21) so as to form a transport path, and the seedlings are laid across the transport belt (15) from side to side.
The bracket (18) connected to the main body of the stand (3) is
Mounted slidably to the left and right with respect to the support member (21)
A strawberry transplanter that has been set . 2. A cradle part (2) on which a seedling group supply box (23) can be placed at a position above the conveyor belt (15).
The strawberry transplanter according to claim 1, wherein 4) is provided.