JPH0220902Y2 - - Google Patents

Description

[Detailed explanation of the idea] Conventional rice transplanters have a bonnet at the front of the machine that opens and closes mainly at the rear, and when the bonnet is opened, it is arranged so that it rises and falls over the fuel tank, etc. located in the middle of the machine. Since the inside of the bonnet is supported by the struts, the engagement operation of the struts is extremely troublesome, and the struts and their mounting structure are complicated, resulting in high costs.

In addition, an index rod is erected at the front of the bonnet, and this index rod protrudes significantly upward when the bonnet is opened, so that tools or other objects may get caught in the protruding index rod during maintenance and inspection work. There was a drawback that the indicator rod or bonnet was damaged.

The present invention makes it possible to open and support the bonnet extremely easily and at low cost, and when the bonnet is opened, the indicator rod does not protrude significantly upwards, thereby preventing damage to the indicator rod and the bonnet. The purpose of this device is to provide a bonnet support device for a rice transplanter, in which an engine is attached to the front of the machine body having a running device, a planting device is provided at the rear, and the rear supports the upper part of the engine. In a rice transplanter covered with a bonnet that can be opened and closed, a support rod that protrudes upward from the closed position of the bonnet is installed in the center of a fixed member at the front of the machine, and a running indicator is attached to the upper end of the support rod. The present invention is characterized in that the support rod is used both as a support member for the travel indicator and a support member for the open bonnet.

The embodiments shown in the drawings will be explained below.
1 is the body of a walking rice transplanter equipped with an engine 2 and a transmission case 3 at the front, and a planting device at the rear similar to conventional ones, which protrudes from both sides of the transmission case 3. The front portions of swing chain cases 4, 4 are attached to the wheel drive shaft, and wheels are each pivotally supported at the rear portions of the swing chain cases 4, 4.

The rear part of the bonnet 5 is pivotally supported by a fulcrum shaft 7 on the upper part of a stay 6 that stands up from the fuselage 1 so as to be movable up and down, and covers the fuel tank 8 and the upper part of the engine 2.

A support rod 11 made of an elastic material and having a coil portion 10 near the base is erected at the center of the front part of the frame 9 on which the engine 2 is mounted, and an index body 12 is fixed to the upper end of the support rod 11. However, a stepped portion 13 is provided at the intermediate portion, which is bent rearward and engages with a corner portion of the front end of the closed bonnet 5.

Further, a receiving member 14 is fixed to the inside of the lower front end of the bonnet 5 as shown in FIG. When the bonnet 5 is closed, the longitudinal protrusion 22 fits into the notch 21 of the support arm 16 that protrudes forward from the engine 2, and in this state, the step 13 of the support rod 11 is as shown in FIG. As shown by the chain line, the indicator body 12 is elastically engaged with the upper corner of the front end of the bonnet 5 and held in the closed state, and the indicator body 12 protrudes from the bonnet 5, making it easy to plant. It becomes a running indicator during the middle of the day.

Also, when the bonnet 5 is opened as shown by the solid line in Fig. 1 for maintenance inspection, the support rod 1
The bonnet 5 can be held in an open position by fitting the index body 12 at the upper end of the bonnet 12 into the receiving hole 15 of the receiving member 14. At this time, not only the index body 12 but also the support rod 11 are placed on the bonnet 5. Nothing stands out.

FIG. 2a shows another embodiment, in which the support rod 11' is erected at the center of the support member 14 in the width direction, and the bonnet 5 is in the closed position and in the open position. The bonnet 5 has two step portions 17 and 18 formed by bending the bonnet at positions corresponding to the above-mentioned step portion 1 at the front upper part of the bonnet 5.
A hole 19 is bored through which 7 and 18 can pass, and the support rod 11' is inserted into the hole 19 during planting work.
In normal conditions, such as when traveling on the road or when stored, the bonnet 5 is locked by simply superposing the receiving material 14 on the support arm 16 and engaging the lower step 18 with the upper surface of the bonnet 5, as shown by the solid line. In this state, the indicator body 12 largely protrudes above the bonnet and serves as a running indicator, and when the bonnet 5 is opened for maintenance inspection, the upper step 17 is inserted into the hole 1.
9 to support it.

At this time, the bonnet 5 rotates upward around its rear part, so the hole 19 moves rearward and the support rod 1
1' is bent slightly backward, and the front upper surface of the stepped portion 17 engages with the front lower surface of the hole 19.

In this embodiment, when the bonnet 5 is opened, the upper part of the support rod 11' partially protrudes upward, but the amount of protrusion is so small that it does not cause any obstruction.

FIG. 2b shows still another embodiment, in which the support rod 11'' is erected on the frame 9 as in the first embodiment, but it is not made of elastic material. Preferably, the lower end is pivotally supported so as to be rotatable back and forth, and the closed bonnet 5 is held by the stepped portion 13 by being pulled rearward by a spring 20 instead of the coil portion 10 of the first embodiment. Although not shown, the support rod 11''
An indicator body 12 is fixed to the upper end of the bonnet 5, thereby supporting the open bonnet 5.

4 to 6 show another embodiment,
The support rod 11 is erected on the frame 9 so as to extend along the front end of the bonnet 5 when the bonnet 5 is closed, as shown by the chain line in FIG. When opened as shown in FIG. 4, the support rod 11 is slightly pushed backwards as shown by the solid line, and the indicator body 12 is attached to the bonnet 5.
The means for supporting the bonnet 5 by fitting into the receiving hole 15 of the receiving material 14 (same as the first embodiment) and locking the bonnet 5 when closed is the sixth embodiment.
As shown in the figure, a long hole 21 in the front and back direction is provided in the support arm 16.
A protrusion 22 that fits into the elongated hole 21 is provided on the rear lower surface of the receiving member 14, an engagement groove 23 is formed on the lower surface of the protrusion 22, and a hole 24 that penetrates vertically is bored. In this hole 24, there is a hook 25 at the bottom.
and a locking rod 26' having a locking pin 26,
It is constructed by interposing a spring 27 in the upper part, and when the bonnet 5 is closed, the hook 25
and the locking pin 26 with the locking pin 26 in the horizontal direction.
are engaged with both sides of the elongated hole 21 of the support arm 16, and when opening the bonnet 5, hold the hook 25 and rotate it 90 degrees.
, the spring 27 becomes compressed, and the pin 26 escapes from the engagement groove 23. In this state, the bonnet 5 can be opened, and when closing, the holder 14 is superimposed on the support arm 16. Then rotate the hook 25 90 degrees horizontally and the 6th
Locked as shown.

Further, as shown in FIG. 5, a stopper 29 may be provided at the front of the support rod 28 at the base of the support rod 11, and the support rod 11 may be pulled forward by a spring 30.

As mentioned above, the present invention is a rice transplanter in which an engine is attached to the front part of the machine body having a traveling device, a planting device is provided at the rear part, and the upper part of the engine is covered with a bonnet that can be opened and closed and whose rear part is pivoted. , a support rod protruding upward from the closed position of the bonnet is erected in the center of the fixed member at the front of the aircraft, a travel indicator is attached to the upper end of the support rod, and the support rod is attached to the travel indicator. Since it serves both as a support member and a support member for the open bonnet, the single support rod can serve both as a support member for supporting the bonnet in the open state and as a support member for the indicator body in the closed state. The support structure with the bonnet can be significantly simplified and costs can be reduced.

In addition, the operation of supporting the bonnet in the open state is only required by locking the bonnet to the support rod that supports the index body, which improves work efficiency and allows the bonnet to be placed in the narrow space under the bonnet, unlike the conventional method. It is extremely easy and does not require any difficult manual work.

Furthermore, when the bonnet is open, the support rods do not protrude significantly upwards, which prevents tools or other objects from getting caught on the support rods and damaging the bonnet or the support rods during maintenance and inspection work.

[Brief explanation of the drawing]

The drawings show one embodiment of the present invention,
Figure 1 is a side view of the rice transplanter with the rear part omitted, Figures 2a and b are side views of the main parts of other embodiments, respectively.
Fig. 3 is a sectional view of the bonnet locking part, Fig. 4 is a side view of the main part of yet another embodiment, Fig. 5 is a side view showing another example of the support rod attachment part as above, and Fig. 6 is the same as above. FIG. 3 is a sectional view of the bonnet locking portion. 1... Aircraft, 2... Engine, 5... Bonnet, 11, 11', 11'', 11... Support rod, 1
2... Indicator body, 13, 17, 18... Step part, 15
...Uke-hole.

Claims (1)

[Scope of utility model registration request] In a rice transplanter, an engine is attached to the front part of the machine body having a traveling device, a planting device is provided at the rear part, and the upper part of the engine is covered with an openable/closable bonnet that is pivoted at the rear. A support rod is provided in the center of the member that protrudes upward from the closed position of the bonnet, and a travel indicator is attached to the upper end of the support rod, and the support rod is connected to the support member for the travel indicator and the open bonnet. A bonnet support device for a rice transplanter, characterized in that it also serves as a support member.