JPH046487Y2 - - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a support structure for a stand for supporting seedlings in a rice transplanter, in which a stand for supporting seedlings is provided above the bonnet.

In the conventional spare seedling rest support structure of this type of rice transplanter, the above-mentioned spare seedling rest was attached to the bonnet. Since the bonnet needs to function as a structure to support the load of the seedlings, reinforcing processes such as increasing the thickness of the bonnet or adding ribs to the bonnet are required, which increases the manufacturing cost of the bonnet. I had a lot of flaws.

There is also a structure in which the spare seedling stand is supported by a stay connected to the aircraft frame, but in this case, when opening and closing the bonnet for engine maintenance etc., make sure that it does not get in the way of opening and closing the bonnet. This requires a structure for moving the preliminary seedling stand in advance, which has the disadvantage that the entire structure including the support structure for the preliminary seedling stand becomes complex.

The present invention aims to eliminate such conventional drawbacks.

The characteristic structure of the preliminary seedling stand support structure of the rice transplanter according to the present invention, which was devised to achieve the above object, is that the movable frame is attached to the machine frame so as to be able to swing up and down and placed inside the bonnet. ,
The bonnet and the spare seedling stand are attached, and the swinging end of the movable frame is detachably engaged with and supported by a support portion on the body frame side.

The functions and effects of the present invention having the above characteristics are as follows.

<Function> (1) Since the spare seedling stand is attached to the movable frame, there is no need for a functional configuration as a structure for supporting the spare seedling stand on the bonnet.

(2) Both the spare seedling stand and the bonnet are attached to the movable frame, and the bonnet is opened and closed by vertically swinging the movable frame alone, causing the spare seedling stand and the bonnet to swing up and down as a unit. Therefore, there is no need for a complicated structure in which the spare seedling stand is supported in a repositionable manner at a position where it does not interfere with opening and closing of the bonnet.

(3) Since the movable frame is arranged inside the bonnet, there is no need to provide extra members in the narrow space between the bonnet and the wheels.

(4) Moreover, since the movable frame is configured so that its swinging end side is engaged with and supported by the fuselage frame side, the movable frame can be stably supported.
Moreover, since it is freely engageable and detachable, no special release operation is required when opening the bonnet.

<Effects> The bonnet can be made thin enough to fulfill its intended function as a bonnet, and manufacturing methods such as sheet metal processing can improve the bonnet's production quality.
The structure is advantageous in terms of cost, and the mounting structure of the spare seedling stand and bonnet can be made simple by simply fixing them to the movable frame with bolts or the like.

In addition, the load of the preliminary seedling stand can be stably and firmly received and supported by the swinging viewpoint part and the engagement support part via the movable frame, and in the swinging and opening operation, the load of the spare seedling stand, bonnet, and Since the movable frame swings integrally, there is no need to evacuate the preliminary seedling stand in advance.

Hereinafter, embodiments of the configuration of the present invention will be described based on the drawings.

The transmission case 2 fixedly connected to the front engine 1 and the planting transmission case 4 for the rear planting device 3 are connected to a pipe frame with a front-rear posture that also serves as a transmission case that houses the transmission shaft to the planting device 3. A pair of left and right running wheels 7, 7 that can swing up and down, and these wheels 7, 7 are integrated into the fuselage frame F, which has a structure that is fixedly connected to the fuselage frame F through a connecting member 6 located on the lower side of the frame F. Hydraulic cylinder 8 that swings up and down
, a bonnet 9, a spare seedling stand 10 located above the bonnet 9 and rotatable around the vertical axis a, a group of floats 11, and a steering handle 12 extending rearward. When assembled, a walking rice transplanter is constructed.

The planting device 3 moves planting claws 3B corresponding to each pine seedling in conjunction with the horizontal reciprocation of the seedling stand 3A, which is tilted backwards and places a plurality of pine seedlings in parallel in the horizontal direction. It is of a well-known type in which a unit amount of seedlings for planting are taken out from pine seedlings and planted by circulating them up and down, and a detailed explanation of its structure will be omitted.

The wheels 7, 7 each have a swing arm 1 pivotally connected to the mission case 2 so as to be able to swing vertically.
It is supported by the swinging free end portions 3 and 13. The swing arms 13, 13 also serve as a transmission case for the wheels 7, 7.

The hydraulic cylinder 8 is connected to a pair of left and right brackets 14, 14' that are erected on the transmission case 2.
The piston rod 8B is supported in a vertically swingable manner at the bottom end of the cylinder case 8A, and is fitted and held at the end of the cylinder case 8A on the protruding side of the piston rod 8B of the plate-shaped bracket 15 fixed to the pipe frame 5. ing. A fuel tank 16 is installed between the upper ends of the pair of brackets 14, 14' and the plate-shaped bracket 15.

The means for linking the hydraulic cylinder 8 and the wheels 7, 7 is a suspension spring 1 at the end of the piston rod 8B in the hydraulic cylinder 8.
7, and a horizontal member 20 that is connected to the swing arms 13, 13 through rods 19, 19 at both left and right ends thereof.
are pivotably connected around the vertical axis b,
This is a means for moving the wheels 7, 7 up and down by moving the back and forth moving member 18 back and forth via the hydraulic cylinder 8, and linking the wheels 7, 7 in a state in which the wheels 7, 7 are swung oppositely by the swinging of the lateral member 20. P is when the heights of the frame F of the two wheels 7, 7 relative to the aircraft are the same,
This is a rod pin that can prevent the horizontal member 20 from swinging relative to the longitudinally moving member 18 and prevent the wheels 7, 7 from swinging in opposite directions. It is operated by

The bonnet 9 and the spare seedling stand 10 are attached to the planting mechanism case 4 by bolts 21, 21...
A pair of left and right plate-shaped stays 2 fixedly connected via...
This movable frame 2 is attached to a movable frame 23 that is connected to the movable frame 2 and 22 so as to be vertically swingable around the rear end side.
The bonnet 9 is fixedly mounted so that it can be opened and closed by vertical swinging of the bonnet 3.

The movable frame 23 consists of a pair of left and right front-to-back frame members 23A, 23A, which are positioned in a parallel position at appropriate intervals in the left and right lateral directions, and horizontal frame members 23B, 23B' using pipes at their front and rear ends, respectively. The end portions of the horizontal frame members 23B and 23B' that protrude laterally outwardly from the front and rear frame members 23A and 23A have a small diameter. It is drawn and processed. Then, this movable frame 23 is moved to the plate-shaped stays 22, 2.
The means for vertically swingingly attaching the rear horizontal frame member 23B' to the mounting portion 2 is to
3a, 23a, these mounting parts 23a, 23a
The plate-shaped stays 22, 22 of the tapered part connected to
A state in which it is prevented from coming out by contacting the opposing surface, that is,
The mounting portion 23a, with its left and right position restricted,
23a is inserted into and held in holes formed in the plate-shaped stays 22, 22 so as to be able to swing freely.

The means for fixing the bonnet 9 to the movable frame 23 is to attach the horizontal frame members 23B, 2 to the left and right side walls 9A, 9A of the bonnet 9.
With both ends of 3B' inserted into the holes, bolts 24, 24... are attached to both ends of frame members 23B and 23B'.
...screw and install these bolts 24, 24.
. . . is a means for retaining it through washers 25, 25 . . . .

The means for attaching the preliminary seedling stand 10 to the movable frame 23 is to attach a cylindrical frame positioned on the vertical axis a to a plate-shaped frame 26 suspended between the front and back frames 23A and 23A of the movable frame 23. A support shaft 27 is installed vertically passing through the top plate 9B of the bonnet 9, and a preliminary seedling stand 10 is attached to the upper end of the cylindrical support shaft 27 through a group of balls 28 around the upper and lower shaft cores 9. A support plate 29 is arranged in series to be placed on the support plate 29 so as to be able to swing freely, and the spindle 2 is attached to the preliminary seedling stand 10.
This is a means for fixing and connecting a cylindrical body 30 that is fitted onto the outside of the seedling stand 7 to prevent the preliminary seedling stand 10 from falling. Reference numeral 31 designates a rotation-locking pin of the preliminary seedling stand 10 that can be freely inserted into and removed from holes 32a and 32b formed on the opposing peripheral surface of the cylindrical body 30 and the support shaft 27; It is a coil spring that moves and biases in the insertion direction.

The means for fixing the movable frame 23 in the bonnet 9 closed position is to attach the front horizontal frame member 2 of the movable frame 23 to the plate-shaped bracket 15.
3B is a means for connecting a receiving part 34 as a support part which is elastically and detachably engaged with the bracket pair 14, 14', and a means for fixing the movable frame 23 in the open position of the bonnet 9. With the upward swinging of the movable frame 23, the bonnet 9 is reversibly expanded from the bent position to the extended position, and beyond the extended position, the bonnet 9 is bent slightly to the opposite side from the bent position. This is a means for interposing a pair of left and right bending links 35, 35 to support the

36 is an operating tool for the locking pin 31.

[Brief explanation of the drawing]

The drawings show an embodiment of the support structure for the preliminary seedling stand of the rice transplanter according to the present invention, and FIG. 1 is a side view of the entire rice transplanter, FIG.
The figure is an enlarged plan view of the main part, Figures 4 and 5 are respectively,
FIG. 6 is an enlarged cross-sectional plan view of the main part, and FIG. 6 is an enlarged longitudinal cross-sectional side view of the main part. 9...bonnet, 10...spare seedling stand, F
... Base frame, 23 ... Movable frame, 34
...Support part.

Claims (1)

[Scope of utility model registration request] A preliminary seedling rest support structure for a rice transplanter in which a spare seedling rest stand 10 is arranged on the upper side of a bonnet 9, which can swing up and down on the body frame F, and is arranged on the inner side of the bonnet 9. The bonnet 9 and the preliminary seedling stand 10 are attached to the movable frame 23 attached to the movable frame 23, and the swinging end of the movable frame 23 is removably engaged with the support part 34 on the side of the body frame F. A support structure for the preliminary seedling stand of the rice transplanter, which is supported by the rice transplanter.