JPS596654Y2 - Attaching and detaching device for planting device in riding rice transplanter - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to a device for attaching and detaching a planting device in a riding rice transplanter.

Conventionally, riding rice transplanters have suspended the planting device using two upper links and two lower links, but when attaching or detaching the planting device, the fulcrum pin has to be pulled out while the load is applied from the four links. Alternatively, it is necessary to fit the connector, making attachment and detachment work difficult and troublesome.

Furthermore, the planting device also requires a special structural member for attachment, which is one of the reasons for the complexity and weight of the planting device.

Therefore, in the present invention, a bracket for attaching and detaching the planting device is pivotally supported at the tips of the upper link and lower link, and a U-shaped guide plate and a hook for attaching the upper part are provided at both ends of the upper part of the bracket. A lock bolt is arranged approximately in the center, and a backing plate and a hook for attaching the lower part are arranged at both ends of the lower part of the bracket, and the connecting frame of the planting device is held by the guide plate and the hook for attaching the upper part, In addition, the transmission case of the planting device is held by the backing plate and the lower mounting hook, and the lock bolt is pressed against the connecting frame, and thus no special structural members are required for attachment to the planting device. However, it is an object of the present invention to provide a device for attaching and detaching a planting device that can be attached and detached quickly, easily, and reliably without using any tools.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings.

As shown in FIG. 1, the riding rice transplanter 1 has a running body 5 supported by front wheels 2 and rear wheels 3, and an engine 6 is mounted on the front part of the body 5. A driver's seat 7 is arranged in the middle, and a spare seedling stand 8 is arranged at the rear of the body 5.

Further, at the rear of the fuselage 5, a planting device 10 is supported by two upper links 11, 11, a lower link 12, 12, and a hydraulic cylinder device 13 so as to be able to rise and fall freely. 15 planting rods, 1 seedling stand
6 and a float 17.

The power of the engine 6 is transmitted to a transmission 18, and further transmitted to the planting device 10 via the front and rear wheels 2, 3 and a connecting shaft 20.

As shown in FIGS. 3 to 5, the planting device 10 has a central drive case 21, and pipe-shaped transmission cases 22 are fixed to the left and right sides of the central drive case 21.

The transmission case 22 connects and supports the side drive cases that support each planting rod 15, and also connects and supports each planting rod 15.
It houses a transmission shaft 23 that transmits power to.

Furthermore, brackets 25 and 25 and a gate-shaped connecting frame 26 are fixed to the transmission case 22 at symmetrical positions sandwiching the central drive case 21, respectively. The end of 25 serves as the fitting surface 25a of the lower link 12, and a pin 27 is fixed thereto.

2, 3 and 5 on the upper part of the connection frame 26.
As shown in the figure, a support stay 30 for a lateral movement guide 28 that supports the seedling stand 16 so as to be slidable in the lateral direction is attached, and a guide plate 31 for attaching the upper link 11 is also attached at a predetermined position. .31 is fixed.

On the other hand, the upper link 11.11 is pivotally supported by a shaft 33 via a bracket 32 at the rear upper part of the fuselage 4.
Further, the lower link 12.12 is pivotally supported at the rear lower part of the body 4 together with the hydraulic cylinder device 13 by a shaft 35.

Note that the upper part of the hydraulic cylinder device 13 is a spring 36.
and is connected to the upper link 11 via a connecting plate 37, and the upper link 11 has a bell crank-shaped arm 11a, and a weight balance spring 39 of the planting device 10 is tensioned on the arm 11a. has been done.

At the tip of each link 11, 11, 12.12 there is a vertical member 3.
8a, 38a, upper horizontal member 38b and reinforcing member 38
A torii-shaped bracket 38 for attaching and detaching the planting device made of C is pivotally supported.

A backing plate 39 is provided at the bottom of the vertical member 38a. 39 and lower attachment hook 40. 40 is provided, and the hook 40
is connected to a hook actuating lever 42 which is biased by a toggle spring 41.

Furthermore, U-shaped guide plates 43.43 that receive the connecting frame 26 are fixed to the upper horizontal member 38b at both ends thereof, and an upper mounting hook 45 is fixed slightly inside the upper horizontal member 38b.
．． 45 is pivotally supported, and the hook 45 is connected to a toggle spring 46.
It is rotated by the hook actuating lever 47 which is biased by.

Further, a bolt hole passes through the center of the upper horizontal member 38b, and a lock bolt 48 having a handle 48a is screwed into the bolt hole via a locking spring 50.

Since the present invention has the above structure, the planting device 10
To attach the upper attachment hook 45. 45 and lower attachment hook 40. 40 to each hook actuating lever 47 . It is opened by the rotation operation of 42, and is stabilized in the opened position by toggle springs 46 and 41.
Furthermore, the lock bolt 48 is retracted by the handle 48a.

In this state, move the fuselage 4 backward, adjust the height of the attachment/detachment bracket 38 using the hydraulic cylinder device 13, and receive the connecting frame 26 into the U-shaped guide plate 43 while being guided by the guide plate 31. , frame 2 on its bottom
6.

Then, by slightly raising the links 11 and 12, the vertical member 38
A contact plate 39 fixed to the lower part of the transmission case 22 is brought into contact with the fitting surface 25 a of the bracket 25 fixed to the transmission case 22 .

Next, move the hook actuating lever 47 to the 1-glue spring 46.
By rotating beyond the desired point of the toggle spring 41, the upper mounting hook 45 hooks the connecting frame 26 and is stably held in that position, and the hook operating lever 42 is rotated beyond the desired point of the toggle spring 41. As a result, the lower attachment hook 40 hooks the pin 27 and is stably held at that position.

After that, rotate the handle 48a and tighten the lock bolt 48.
By screwing in the bolt 48, bringing the tip of the bolt 48 into contact with the connecting frame 26, and tightening it appropriately, the hooking relationship of each of the hooks 45, 41 is maintained, and the installation of the planting device 10 is completed.

Then, planting work is carried out in this state, but during the work,
Since a downward force of gravity is always acting on the planting device 10, a force in the direction away from the bracket 38 is applied to the connecting frame 26, and a force in the direction pushing it against the bracket 38 is applied to the transmission case 22. There is.

Therefore, the connection frame 26 is held by the U-shaped guide plate 43 and the hook 45 against the force in the direction of separation, and the lock bolt 48 ensures this holding relationship, and the transmission case 22 is held by the backing plate 39 and the hook 45. The planting device 1 is securely held by the hook 40 against the force in the pressing direction.
0 allows work to proceed with the item securely attached.

Conversely, when removing the planting device 10, after loosening the lock bolt 48, each hook operating lever 47, 42
By rotating the upper and lower hooks 45.
40 is stably held in the open position, and in this state, the body 4 is moved forward using the front wheels 2 and the rear wheels 3.

As explained above, according to the present invention, the attachment/detachment bracket 38 is pivotally supported on the upper link 11 and the lower link 12, and the upper and lower attachment hooks 45 . 40 hooks the mounting member of the planting device 10, and the lock bolt holds the hooking relationship, so the planting unit 10 can be attached and detached with one touch without using any tools, quickly, easily and reliably. It is possible to perform attachment and detachment work.

Further, a transmission case 22 that connects and holds each drive case to the attachment member of the planting device 10, and a guide 28 for lateral movement of the seedling stand 16 that is fixed to the transmission case.
Since the connecting frame 26 to which the support stay 30 of
0 can be prevented from becoming complicated and heavy.

In addition, a U-shaped guide plate 43 and an upper attachment hook 45 are provided at both ends of the upper part of the brackets 1 to 38, and a lock bolt 48 is provided approximately in the center thereof, and a lock bolt 48 is provided at both ends of the lower part of the bracket 38. Since a patch plate 39 and a lower attachment hook 40 are provided on the bottom, the support structure provides a reasonable force for attaching the planting device 10, which is constantly subjected to downward gravity during the operation. Although the device 10 is extremely easy to install, the planting device 10 is reliably installed and held, and accidents caused by improper installation can be completely eliminated.

[Brief explanation of the drawing]

Fig. 1 is a side view showing a riding rice transplanter to which the present invention can be applied, Fig. 2 is a plan view of the attaching/detaching device according to the present invention, Fig. 3 is a side view thereof, and Fig. 4 is an upper part showing a state in which the lower part is attached. 5 is a perspective view of the attachment/detachment device as seen diagonally from the front, and FIG. 6 is a perspective view of each link and the attachment/detachment bracket as seen diagonally from the rear. 1... Riding rice transplanter, 10... Planting device, 11... Upper link, 12...
Lower link, 16... Seedling stand, 21...
...Drive case, 22...Transmission case,
26... Connection frame, 28... Lateral movement guide, 30... Support stay, 38...
...Bracket for attachment and removal, 39...Packing plate, 4
0... Hook for lower mounting, 43... Guide plate, 45... Hook for upper mounting, 48...
...Rock bolt.

Claims (1)

[Scope of utility model registration request] The planting device includes a transmission case that connects and holds each drive case, and a connecting frame that is fixed to the transmission case and that has a support stay for the lateral movement guide of the seedling stand. In a riding rice transplanter in which an attached device is suspended from a traveling body by two upper links and two lower links, a bracket for attaching and detaching the planting device is pivotally supported at the tips of the upper link and lower link, and the bracket is A U-shaped guide plate and a hook for attaching the upper part are arranged at both ends of the upper part, and a lock bolt is arranged approximately in the center thereof, and a guard plate and a hook for attaching the lower part are arranged at both ends of the lower part of the bracket. A planting device for a riding rice transplanter in which a connecting frame is held by a guide plate and an upper mounting hook, a transmission case is held by a cover plate and a lower mounting hook, and a lock bolt is pressed against the connecting frame. attachment/detachment device.