JPH022168Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention has a plurality of planter cases arranged at a predetermined interval along the traveling direction of the traveling machine under the seedling table, and plants are planted on the rear side of each planter case. An attached claw is attached, and the front side of each planter case at the lower back of the seedling mounting table is connected to the shaft case connected laterally, and the shaft case is mounted on a transmission shaft provided through the shaft case and the planter case. This relates to a planting clutch device for a rice transplanter, which is equipped with a planting clutch on the front side of each planter case to intermittent power to the planting section. Conventionally, this type of device has been constructed with a very complicated mechanism. This not only increases the weight and cost of the rice transplanter, but also requires special components, which makes it difficult to apply to existing machines, which is not desirable. However, the present invention solves these problems. The purpose is to eliminate this shortcoming, and although it is a very simple and compact mechanism, when planting along a ridge, etc., the system simply switches and operates the planting control lever of the planting section that corresponds to the unnecessary planting row. The purpose is to provide something that can easily and reliably stop the operation of unnecessary planting nails.

The configuration of the present invention will be described with reference to an embodiment shown in the drawings. 1 is a passenger-type traveling aircraft;
The traveling aircraft 1 has front wheels 4, 4 mounted on both sides of the front of a fuselage frame 3 on which an engine 2 is mounted, and rear wheels 6, 6 mounted on both sides of the rear via a transmission case 5. Driver seat 7 at the rear
have. Reference numerals 8 and 8 denote driving operation handles, and the steering of the front wheels 4 is controlled by rotating the driving operation handle 8. 8a
is an operation control panel equipped with various instruments.
Reference numeral 9 denotes a seedling planting section, and the seedling planting section 9 is vertically movably connected to the rear of the machine via a left and right parallel link mechanism 10 consisting of an upper link 10a and a lower link 10b. The seedling planting section 9 has a float 11 on the lower side, and a seedling mounting table 12 is installed on the upper side so as to be able to reciprocate from side to side through a left and right reciprocating drive mechanism and to be high in the front and low in the rear. . Reference numeral 13 is a lower part of the seedling mounting table 12, and is connected to a shaft case 14 which is connected in the horizontal direction at a predetermined interval along the traveling direction of the traveling body 1.
A pair of left and right planting claws 15, 15 are attached to the rear side of each of these planter cases 13, so that eight rows of seedlings can be planted as shown in FIG. A planting section 9 is configured. 16 is a planting clutch operation lever,
The operating lever 16 is slidably supported in the axial direction of the shaft case 14 via a holder 17 fixed to the shaft case 14, and its outer end is bent downward to form a grip portion 16a. A hook 18 is formed on the inner end of the locking pin 1.
9, and the hook 18 and the clutch lever 20 of the planting clutch A are connected to the ammunition 20a.
The seedling mounting table 12 is connected to the front side of each planter case 13, . . . at the lower rear surface thereof. By pushing and pulling the planting clutch operating lever 16, the planting clutch A built in the planter case 13 is connected and disconnected. On the other hand, the planting clutch A is constructed as follows. That is, as shown in FIGS. 5 and 6,
A sprocket 22 having a clutch pawl at one end is fitted onto the transmission shaft 14a supported within the shaft case 14 via a bearing 21 so as to be rotatable only in the circumferential direction without sliding in the axial direction. The sprocket 22 has a flange 22b having a notch 26.
are arranged in parallel to constitute a passive clutch body B.
Further, a dog clutch 22a having a clutch pawl opposite to the clutch pawl of the passive clutch body B is spline-fitted to the transmission shaft 14a, and the dog clutch 22a is constantly pressed in the direction of the sprocket 22 by a bullet 23. It is being energized. On the other hand, 24 is the shifter of the planting clutch A,
A bifurcated pin 24a, 2 is provided at one end of the shifter 24.
The pins 24a and 24b are fitted into the outer peripheral recesses of the engaging clutch 22a and the sprocket 22, respectively, and the clutch lever 20 is fixed to the other end via a bolt 25. Also,
The notch 26 provided in the flange 22b is connected to the pin 2.
When the seedling planting claws 15, 15, which are formed slightly wider than the diameter 4b and draw a loop-shaped driving trajectory in the vertical direction, come to a predetermined rotation position so as to stop at the upper position. , the pin 24b passes through the notch 26, the shifter 20 rotates, and the planting clutch A is disengaged. 27 is a transmission chain suspended between the sprocket 22 and the drive sprocket (not shown) of the seedling planting claws 15, 15.

Moreover, 28 is an operating fork fixed to the middle part of the planting clutch operating lever 16 via a bracket 28a, and a bullet 29 is interposed between the operating fork 28 and the holder 17, and the above-mentioned operation The lever 16 is constantly biased in the clutch ``engage'' direction. 30 is a stopper fixed to the holder 17, and 31 is a locking pin fixed to the operating lever 16.

Next, 32 is a drive shaft of a seedling vertical feeding mechanism (not shown), and the drive shaft 32 has a fourth drive shaft.
As shown in the figure, a cylindrical body 33 with drive cams 33a and 33b fixed to both ends is slidably and loosely fitted, and one side of this cylindrical body 33 is provided with a groove 33' in the circumferential direction. The operating fork 28 is fitted into the groove 33', and the pressing force of the bullet 29 urges the cylinder 33 in the right direction in FIG. The cylindrical body 33 and the drive cams 33a, 33b are adapted to rotate together with the drive shaft 32 by engaging with a pin 34 provided at the location. When the cam follower 35, which reciprocates left and right together with the seedling table 12, comes to the end position of left and right movement, it engages with the drive cams 33a and 33b to drive the seedling vertical feeding mechanism, and the seedlings on the seedling table 12 are This is to vertically feed the seedlings in the direction of seedling removal. Further, 36 is a bearing portion of the drive shaft 32 fixed to the holder 17, and an engaging portion 36 is provided on the inner surface of the bearing portion 36.
a is provided, and one end portion of the cylinder 33 is configured to be removably engaged with this engaging portion 36a.

It goes without saying that the above-mentioned planting clutch operating lever 16 and the interlocking mechanism between the operating lever 16 and the vertical seedling feeding mechanism are provided independently corresponding to the planting clutch A built into each planter case 13. Two planting clutch operating levers 16 are disposed on each side of the seedling planting section 9 on the left and right sides.
Each can be operated separately and independently.
Further, in the above embodiment, an eight-row shifter has been described, but the shifter is not limited thereto.

Next, the operation of the present invention constructed as described above will be explained. As shown in this example, when planting with an 8-row rice transplanter, for example, if there is a planting allowance of 6 rows left at the last row of one field,
The operation of the extra pair of seedling planting claws 15, 15 may be stopped, or the operation of the pair of seedling planting claws 1 may be stopped at the last time.
If you stop the operation of 5 and 15 and use the remaining 3 pairs of seedling planting claws to plant 6 rows, you will be able to plant 8 rows in the final stage, making it possible to plant by machine without manually planting all the way to the edge of the ridge. In such a case, when the planting clutch operation lever 16 corresponding to the planting claws 15, 15 whose operation is to be stopped is pulled against the bullet 29, a force is applied to the operation lever 16 via the hook 18 and the bullet 20a. The clutch lever 20 connected thereto rotates counterclockwise in FIG. 4, the planting clutch A is disengaged, and the corresponding pair of seedling planting claws 15, 15 stops operating. In this case, as shown in FIG. 6, the shifter 24 rotates and the clutch is disengaged only when the notch 26 formed in the flange 22b of the sprocket 22 matches the position of the pin 24b of the shifter 24. The planting claws 15, 15 are always positioned and stopped at the upper position immediately before the seedling splitting action. Therefore, the planting claws 15, 15 do not pull the rice field one by one or stop with the seedlings held between the claws at all.

On the other hand, by pulling the operating lever 16, the operating fork 28 also moves to the left in FIG. In order to move, one end of the cylinder 33 is connected to the drive shaft 32.
At the same time, the other end portion is engaged and fixed to the engaging portion 36a, so that the cylinder body 33 and the drive cams 33a, 33b stop rotating, and only the drive shaft 32 freely rotates. As a result, the operation of the seedling vertical feeding mechanism corresponding to the seedling planting claws 15, 15 is also stopped at the same time. Therefore, even if the cam follower 35 reaches the end of the horizontal movement integrally with the seedling table 12, the seedlings on the seedling table 12 are not subjected to the vertical feeding action, so that the seedlings in this area are compressed in the direction of seedling delivery. Damage to the seedlings is definitely prevented.

In addition, each planting clutch A is mounted on a transmission shaft 14a that is internally mounted on the front side of each planter case 13 and the shaft case 14, so the transmission mechanism is simplified, and the weight and cost of the machine 1 are reduced. Contribute to

Furthermore, bifurcated shifter pins 24a, 24b
Since it is integrally constructed and can be rotated at the same time, both the structure and operation are simple and easy.

In addition, after pulling the planting clutch operating lever 16 to disengage some of the planting clutches A, if the operating lever 16 is rotated 90 degrees in the outer circumferential direction as shown by the phantom line in FIG. The locking pin 31 is the stopper 3
0, the planting clutch A is held in the "off" state even if the operating lever 16 is released.

When the planting clutch A is engaged, the operation lever 16 is simply rotated from the state shown by the phantom line in FIG. 4 to the state shown by the solid line, and the stopper 30
Since the locking pin 31 is disengaged from the
The operating lever 16 is automatically pushed back by the pressing force of the bullet 29, and at the same time the planting clutch A is engaged, the cylinder 3
3 is also moved in the opposite direction to the above via the operating fork 28, returns to its original position, and one end thereof engages with the pin 34 and rotates together with the drive shaft 32 again to drive the vertical feeding of the seedlings. It is something to do.
Therefore, by simply operating the planting clutch operating lever 16, the operation of the seedling feeding mechanism can be automatically controlled in conjunction with the intermittent operation of the planting clutch A, and the structure is simple and there is little trouble. Moreover, the operation can be performed reliably.

It is also possible to extend each planting clutch operating lever 16 to the cockpit position via a wire so that the lever can be operated at hand, but in this case, in the case of a passenger type as in this embodiment, Since the rear side of the seedling mounting table 12 is close to the driver's seat, the wire configuration can be simplified.

In short, in the present invention, a plurality of planter cases 13, . A planting claw 15,... is attached to the rear side of the seedling mounting table 12, and the front side of each planter case 1,... is connected to the shaft case 14, which is connected to the lateral side, and the shaft case 14 is connected to the front side of each planter case 1,... Case 14 and planter case 1
In a rice transplanter, each of the planting clutches A is installed on the front side of each planter case 13 to disconnect the power to the seedling planting part 9, and is mounted on a transmission shaft 14a disposed through a transmission shaft 14a through the rice transplanter. Specifically, the meshing clutch 22a is configured to be engaged and disengaged from the planting pawl drive sprocket 22 by changing the position using the shifter pin 24a, and the meshing clutch 22a is linked to and disengaged from the driving sprocket 22. A shifter pin 24b is provided that is engaged with and disengaged from a notch 26 provided in a flange 22b of the drive sprocket 22, and the shifter pin 24b is engaged when the clutch is in the "on" state to stop the drive sprocket 22 at a specific angle. On the other hand, the shifter pin 24b is integrally connected to the shifter pin 24a for changing the position of the engagement clutch 22a with the clutch engagement surface interposed therebetween.
A clutch lever 20 that integrally rotates 4a and 24b via a shifter 24 is attached to the seedling mounting table 1.
Each planter case 13 at the lower back of No. 2,...
When planting along a ridge, etc., by simply switching the operating lever 16 of some planting clutches A to the "off" direction, the excess planting claws 15 can be moved above the field surface. Although it is possible to easily and reliably stop at a specific position and change the planting row without dragging the field surface with the planting claws 15, in particular, each of the planting clutches A, ... is a transmission shaft 14a mounted internally on the front side of each planter case 13, ... and on the shaft case 14.
Since the shaft is mounted on the shaft, the transmission mechanism is simple, which contributes to reducing the weight and cost of the machine 1, and also allows for additional equipment to be added to existing machines. The structure and operation are both simple and easy, as the rotating operation can be performed at the same time.

Furthermore, the clutch lever 20 is located on the opposite side of the seedling mounting table 12 from the planting claw 15.
2 Rotating and potentially dangerous planting claws 1 provided on the front side of the planter case 13 at the bottom of the back.
Because it is separated from the 5th part, it is safe and
There is no adhesion of scattered mud from the planting claw 15 to the clutch lever 20 part, and smooth clutch operation is always possible.

In addition, these planting claws 15, planting clutch A, and clutch lever 20 are attached to the respective planter cases 13,
... are disposed before and after the transmission clutch mechanism, so assembly and adjustment of these transmission clutch mechanisms are required for each planter case 13,
It is possible to easily and easily set the stop timing of the planting claws 15 every time.

Furthermore, since the front case part of the planter case 13 is used as the mounting position for the clutch lever 20, there is no need to prepare a special mounting member, and the clutch lever 20 can be operated by rotating along the case side wall. Therefore, it has many practical effects such as being able to be easily installed even in a narrow space.

[Brief explanation of the drawing]

The drawings show an embodiment of a planting clutch device in a rice transplanter according to the present invention, and FIG. 1 is an overall side view of a riding rice transplanter equipped with the present invention, and FIG.
The figure is a side view of the seedling planting section, Figure 3 is a plan view of the seedling planting mechanism, Figure 4 is a front view of the main parts, Figure 5 is a vertical front view of the planting clutch, and Figure 6 is a cross-sectional view of the same as above. FIG. 9... Planting section, 12... Seedling mounting stand, 13... Planter case, 14... Shaft case, 14a
... Transmission shaft, 15, 15 ... Planting pawl, 16 ... Planting clutch operation lever, 20 ... Clutch lever, 22 ... Drive sprocket, 22a ... Engagement clutch, 22b ... Flange, 24 ... shifter,
24a, 24b...shifter pin, 26...notch, A...planting clutch, B...passive clutch body.

Claims (1)

[Scope of utility model registration request] A plurality of planter cases 13, .
A planting claw 15,... is attached to the rear side of each planter case 1 at the lower back of the seedling mounting table 12.
The transmission shaft 1 is connected to the front side of 3,... by a shaft case 14 which is connected to the lateral side, and is disposed through the shaft case 14 and the planter case 13.
In a rice transplanter in which a planting clutch A is installed on the front side of each planter case 13 to intermittent power to the seedling planting part 9, the planting clutch A is mounted on a shaft on the rice transplanter 4a.
, the planting pawl drive sprocket 22
The engaging clutch 22a is connected to the shifter pin 24.
a notch 26 provided in the flange 22b of the drive sprocket 22 in conjunction with the engagement/disengagement operation of the dog clutch 22a with respect to the drive sprocket 22;
A shifter pin 24b is provided to be engaged and disengaged when the clutch is in the "on" state to stop the drive sprocket 22 at a specific angle, while a shifter pin 24b is provided to change the position of the dog clutch 22a. The shifter pin 24b is integrally connected to the shifter pin 24a with the clutch engagement surface interposed therebetween,
These shifter pins 24a and 24b are connected to the shifter 2.
4. A planting clutch device for a rice transplanter, characterized in that a clutch lever 20 which is integrally rotated via a clutch lever 20 is provided on the front side of each planter case 13, .