JPS5833842Y2 - seedling planting machine - Google Patents

Description

[Detailed explanation of the invention] When planting seedlings at the edge of a ridge using a conventional two-wheeled multi-row seedling transplanter, the left and right wheels are positioned at the edge of the ridge because the tillers at the edge of the ridge are uneven. The sides are high, the edge of the seedling is low, and the seedling planting machine is tilted from side to side, so the planting depth on the left and right sides is not constant.
In extreme cases, the seedlings become floating on the ridge side and are planted deeply on the opposite side, causing defects in the seedlings' ability to take root and grow.

The present invention has a wheel suspension mechanism for a seedling transplanter that has a pair of left and right running wheels. The present invention relates to an improvement in a seedling transplanter that is provided with a locking device that can be used to lock the locking device and a lever that controls the locking and unlocking of the locking device, and the wheel suspension mechanism in such a seedling transplanter includes: An insert pin is installed between the bevel gear case installed above the fuselage and a support metal fitting fixed to the frame of the fuselage, so that it can rotate freely and in the front-rear direction of the fuselage, and the insert pin is fixedly mounted on the insert pin. A sliding case is provided so as to be slidable, a rotating arm is rotatably supported within the sliding case, and both ends of the rotating arm and left and right transmission cases having left and right wheels are rotated. The wheels are connected via metal fittings, connecting rods, and rotating rods, and are provided with bullets that abut against the sliding case to press and force the left and right wheels downward. The device includes: a rotating seat plate fixed to an end of one side of the rotating arm and having at least three locking holes; a lever holder attached to a lower part of one side of the sliding case; A locking pin fitted into a bearing provided in a lever holder, a shaft rotatably mounted with a lever for inserting and removing the locking pin into any locking hole, and a shaft located below the locking pin. It consists of an installed ammunition and a wire connection fitting attached to the lever,
In addition, the above-mentioned lever is designed so that when the lever is grasped by hand, the locking state of the locking device is released, and when the lever is released, the locking state of the locking device is maintained. The lever controls locking and unlocking, and the lever is installed close to the operating handle grip, and is connected to the lever via the wire connection fitting described above by a wheel assembly wire. When using the work tool, hold the lever and the operating handle grip together with one hand, twist the operating handle grip so that it is horizontal, and then pull the lever with one hand from the rear lever. It is necessary to separate them.

The purpose of the present invention is to provide a seedling transplanter improved in this way, and by using the seedling transplanter according to the present invention, it is possible to simultaneously hold the lever and the operating handle grip part with one hand. It has the excellent advantage of being able to be operated and improve the efficiency of planting work in areas where the plowing plates are unevenly aligned.

In the following, this invention will be specifically explained with reference to the attached drawings illustrating the invention. 1 is equipped with an engine 2, a transmission case 3, a float 4, a seedling stand 5, a spare seedling stand 7, and wheels 1.
2. It is a seedling transplanter equipped with a transmission case 14, etc.

6 is a seedling, 8 is a planting device, 9 is a planting claw, 10 is an operating handle, 10' is an operating handle grip, and 11 is a direction change lever.

13 is installed close to the operating handle grip part 10',
A lever 14 controls the locking and unlocking of the locking device, and 14 is a left and right transmission case that can rotate upward and downward in an arc around the wheel drive shaft 15, and 16 is a lever provided on the transmission case 14. The axle 17 is a chain that is wound between the wheel drive shaft 15 in the transmission case 14 and the sprocket of the axle 16.

18 is a rotating rod fixed to the transmission case 14, 19 is a frame, 19' is an upper edge of the frame, 20 is a support fitting fixed to the frame, and 21 is a connection between a bevel gear case 22 and a support fitting 20 fixed to the frame 19. 23 is a support plate of the bevel gear case 22 attached to the transmission case 3, 24 is a bevel gear fixedly attached to the front end of the insert pin 21, and 25 is a bevel. gear 24
26 is a manual lever that rotates the starting bevel gear 25.

Reference numeral 27 denotes a non-rotating metal fitting, which is screwed into the insert pin 21 and a part of which is engaged in the long hole groove 29 of the cover 28 provided above the bevel gear case 22 and the support metal fitting 20. The non-rotating metal fitting 27 can be moved in the axial direction of the insert pin 21 along the elongated groove 29 as the insert pin 21 rotates.

30 is a sliding case that can slide on the insert pin 21;
31 is a front guide tube of the sliding case 30, and 32 is a rear guide tube of the sliding case 30.

33 is a spring provided between the sliding case 30 and the non-rotating metal fitting 27 to press and force the wheel downward; 34 is rotatable by an upper fulcrum pin 35 and a lower fulcrum pin 36 in the sliding case 30; 37 is a long hole to prevent the rotating arm 34 from interfering with the insert pin 31 when it rotates, 38 is a metal provided at both ends of the rotating arm 34, and 39 is a metal a rotating metal fitting rotatably supported by 38;
Reference numeral 40 denotes rotating fittings 39 provided at both ends of the rotating arm 34.
and a connecting rod provided between the mounting bracket 41 of the rotating rod 18,
42 is a stop pin.

Reference numeral 43 denotes a rotating seat plate, which is fixed to one end of the rotating arm 34 and has at least three locking holes 44 formed therein.

Reference numeral 45 indicates a lever holder attached to the lower part of one side of the sliding case 30, and reference numeral 46 indicates several locking holes 44 and a central locking hole 44' drilled in the rotating seat plate 43 fixed to the rotating arm 34. Of these,
It is a locking pin that can be inserted into or removed from any locking hole,
The locking pin 46 is pivotally supported within a bearing 47 provided at the side end of the sliding case 30.

48 is a lever that allows the locking pin 46 to be inserted into and removed from the locking hole 44.44', 49 is a shaft of the lever 48, and 50 is a bullet that allows the locking pin 46 to be inserted into the locking hole 44.44'. .

51 is a wire connection fitting, 52 is an arm extending rearward from the lever receiver 45, and 53 is a wheel age wire for connecting the wire connection fitting 51 and the lever 13.

In this specification, the wheel suspension mechanism referred to above includes the bevel gear case 22, the body frame 19, the support fitting 20, the insert pin 21, etc., which are described in detail above. Sliding case 30
, the rotating arm 34, the transmission case 14, the rotating metal fitting 39, the connecting rod 40, the rotating rod 18, and the bullet 33 as the main members, and is also referred to as the above-mentioned locking device in this specification. The rotating seat plate 43 described in detail above,
The main components are a lever holder 45, a bearing 47, a locking pin 46, a lever 48, a shaft 49, a bullet 50, and a wire connection fitting 51.

Next, to explain the operating state of the seedling transplanter 1 equipped with the present invention, seedlings 6 are planted on a flat area of a tiller in a field by the seedling transplanter 1 equipped with a wheel suspension device as illustrated in the drawings. When planting, ensure that the left and right wheels 12 are located at the same height, that is, the numerous locking holes 44.4 provided in the rotating seat plate 43.
4', a locking pin 46 is inserted into the locking hole 44' located in the center.
(see Fig. 3), and rotate the manual lever 26 shown in Fig. 2 in order to find the appropriate wheel depth for the depth of the tiller. The insert pin 21 rotates through the insert pin 21, and the non-rotating metal fitting 27 screwed into the insert pin 21 moves along the long hole groove 29 of the cover 28, so that the bullet 33 and the sliding case 30 also move together. Since it can be moved in conjunction with the insert pin 21, the rotating fitting 39 and the connecting rod 40
, mounting bracket 41. Transmission case 14 via rotating rod 18 etc.
can rotate upward or downward about the wheel drive shaft 15, so the manual lever 26 is operated to balance the weight of the machine between the wheels 12 and the float 4 so that the seedling transplanter 1 can run stably. Rotate to adjust wheel height.

Next, when the machine moves forward and the planting device 8 is activated, the planting claws 9 rotate up and down in an elliptical trajectory to move the seedlings 6 from the seedling stand 5.
One plant at a time is taken out and planted on the soil surface at regular intervals and at a constant depth.

When moving forward, the sliding case 30 moves over the insert pin 21 due to the expansion and contraction action of the bullet 33 provided between the non-rotating metal fitting 27 and the sliding case 30 in response to changes due to unevenness of the tiller in the field. The wheels 12 slide and rotate as they follow up and down changes on the uneven tiller plate, causing the machine to move forward stably.

In addition, since the plowing platform at the edge of a ridge is higher on the ridge side, the machine body is tilted higher on the ridge side and lower on the non-ridge side. , the lever 48 is rotated by the wheel assembly wire 53 via the wire connection fitting 51, and the locking pin 46 is inserted into the central locking hole of the rotating seat plate 43 against the bullet 50. 44' to release the locking state between the sliding case 30 and the rotating arm 34, the operating handle grip portion 1 at the end of the operating handle 10 of the tilted aircraft body.
0' so that it is horizontal to the water surface, the rotating arm 34 rotates around the upper fulcrum pin 35 and lower fulcrum pin 36 of the sliding case 30, as shown in FIG. The wheel position on the edge side can be positioned higher than the wheel position on the opposite side.

In this state, when the worker releases the lever 13 with one hand that was holding the lever 13 and the operating handle grip 10' at the same time, the locking pin 46 is moved into the center locking hole 44' by the elastic force of the bullet 50. is inserted into a suitable locking hole 44 other than the
The sliding case 30 and the rotating arm 34 are in a locked state,
The seedling transplanter 1 is held in a horizontal state, and the left and right wheels 12 are arranged high and low along the slope of the tiller, and can move forward while swinging up and down to follow the irregularities on the tiller. Even on sloping ridges, the left and right planting depths can be made the same, just as in flat areas of the field.

When the planting at the edge of the ridge is completed, the worker once again grasps the lever 13 and the operating handle grip 10' with one hand, and moves the sliding case 30 and the rotating arm 34 in the same manner as described above.
After releasing the locked state with the operating handle grip part 10'
Twist the locking pin 46 so that it is parallel to the water surface.
By releasing the lever 13 at the position where the lever 12 is engaged with the center locking hole 44', the left and right wheels 12 can be restored to the same height and locked.

As explained above, in the seedling transplanter according to the present invention, the lever operation and the twisting operation of the operating handle grip can be performed at the same time, and the heights of the left and right wheels can be very easily and easily adjusted to the same height. It is an effective seedling transplanter for improving the efficiency of planting work in areas where the tillers are unevenly aligned, such as along the edge of a ridge, as the seedlings can be stopped or locked vertically.

[Brief explanation of the drawing]

The drawings illustrate the mode of carrying out the present invention, and Fig. 1 is a side view of the seedling transplanter, Fig. 2 is a side view of a part of the suspension device taken vertically, and Fig. 3 is a side view of the seedling transplanter, and Fig. 3 is a side view of the seedling transplanter. It is a top view when a stop pin is inserted. Figure 4 shows that the left transmission case is rotated upward, the right transmission case is rotated downward, the right wheel is placed in a low position, and the left wheel is placed in a high position. FIG. 3 is a plan view of the case in a state where the case is tilted upward and downward. Fig. 5 is a partially cutaway side view illustrating the main parts such as the sliding case, rotating arm, rotating seat plate, lever, and connecting rod; Fig. 6 is a cross-sectional view taken along the XY line in Fig. 5; FIG. 7 is a perspective view of the relationship between the operating handle grip portion and the lever. In these drawings, 1 is a seedling transplanter, 10 is an operating handle, 10' is an operating handle grip, 12 is a wheel, 13 is a lever, 14 is a transmission case, 44 and 44' are locking holes,
46 is a locking pin, 48 is a lever, 50 is a bullet, and 53 is a wheel abuse wire.

Claims (1)

[Scope of utility model registration request] An insert pin 21 is attached between a bevel gear case 22 installed above the fuselage and a support fitting 20 fixed to the frame 19 of the fuselage, and is freely rotatable in the front-rear direction of the fuselage. A sliding case 30 is provided so as to be non-rotatably slidable, and a rotating arm 34 is rotatably supported within the sliding case 30, and both ends of the rotating arm 34 and the left and right wheels 12 are supported. The left and right transmission cases 14 having a
A wheel suspension mechanism is provided with a bullet 33 that presses and biases the left and right wheels 12 downward, and a wheel suspension mechanism is provided with a bullet 33 that contacts the left and right wheels 12. A rotating seat plate 43 having a locking hole 44, a lever holder 45 attached to the lower part of one side of the sliding case 30, and the lever holder 45.
A locking pin 46 fitted into a bearing 47 provided therein, a shaft 49 to which a lever 48 for inserting and extracting the locking pin 46 into or out of any locking hole 44 is rotatably attached, and the locking pin 46 A locking device constituted by a wire connection fitting 51 attached to a bullet 50 and a lever 48 installed below, and a lever 13 that controls the locking and unlocking of the locking device are provided. In the seedling transplanter, the lever 13 is configured such that when the lever 13 is grasped by hand, the locking state of the locking device is released, and when the lever is released, the locking state of the locking device is maintained. It controls the locking and unlocking of the locking device, and the lever 1
3 is installed close to the operating handle grip part 10', and is connected to the wire connection fitting 51 by the wheel serpentine wire 53.
The lever 48 is connected to the lever 48 through the
0' with one hand, twist the operation handle grip part 10' so that it becomes horizontal, and then release the hand from the lever 13.