JPS6129580Y2 - - Google Patents

Description

[Detailed description of the invention] The present invention relates to a bonnet opening/closing device for a mobile agricultural machine, and is designed to easily and quickly fix the bonnet in the open state without providing any special fixing member. .

Prior to the development of the present invention, the applicant of the present invention had devised the system shown in Fig. 5 in order to simplify maintenance and inspection of engines, etc., but the following problems arose. That is, when the operating handle 15 of the recoil starter 13 is attached to the rear of the bonnet 9 and the bonnet 9 is opened upward about its pivot point 11, pulling the operating handle 15 requires the use of the work implement attached to the rear of the machine. For example, we have developed a device that prevents the danger of unexpected engine starting during maintenance inspection by making the starting operation difficult due to interference with the seedling placement table 4, etc., but in this device, the bonnet 9
When opened, it is necessary to provide a special member such as a stay 17 to fix it in that position.
The cost was high, and opening and closing operations were cumbersome and troublesome.

In view of the above-mentioned circumstances, the present invention aims to improve this problem by setting the recoil starter rope so that it is located below the bonnet opening/closing fulcrum when the bonnet is open. The elastic force urges the bonnet in the opening direction, so that the bonnet can be fixed in the open state without a special fixing member.

The following describes an embodiment in which the structure of the present invention is applied to a rice transplanter. In the figure, 1 is the body frame of the rice transplanter, and the engine 2 is mounted on the front part of the body frame 1. A driving operation handle 3 is provided at the rear of the frame 1 and extends rearward and diagonally upward. Reference numeral 4 denotes a seedling mounting table of the rice transplanting device provided at the rear of the machine frame 1, and is mounted on the operation handle 3, and 5 indicates a planting device, which is provided in front of the seedling mounting table 4. ing. 6
are running wheels, which are supported at the rear of a transmission case 7 that protrudes left and right from the fuselage frame 1. Reference numeral 8 denotes a surface sliding body, which is attached to the fuselage frame 1 so as to be able to move up and down. Reference numeral 9 denotes a bonnet that covers the upper part of the engine 2 mounted at the front of the fuselage.The rear part of the bonnet is rotatably supported by a pivot pin 11 provided on a support post 10 that projects upward from the fuselage frame 1. The part is supported so as to be openable and closable in the vertical direction. The above-mentioned pivot is as shown in FIG. 3, and a coil spring 12 is fitted into a pivot pin 11 that passes through a bracket 9a provided on the back side of the bonnet 9 and the upper end of the column 10. The spring 12 is a balance spring having an elasticity corresponding to the weight of the bonnet 9, so that the bonnet 9 can be easily moved up and down. 13 is engine 2
A recoil starter is provided on one side, and an operating handle 15 is provided at the tip of a starter rope 14 extending rearward from the recoil starter.
3a, the engine 2 is normally biased in the winding direction, that is, in the forward direction of the machine body, and the engine 2 is started by pulling the operating handle 15 backward. A handle holder 16 is attached to the rear side wall of the bonnet 9, and serves to attach and support the starter rope 14 and also serves as a stopper for the operating handle 15. As shown in FIG. 2, the mounting position of the handle holder 16 is as shown in FIG.
is positioned above the pivot pin 11, and the starter rope 14 is positioned below the pivot pin 11 when the bonnet is open, as shown by the chain line in the figure. and bonnet 9
is biased by the elastic force of the starter rope 14 to maintain the closed state when closed and to maintain the open state when opened. FIG. 4 shows another example of the pivot shown in FIG. 3, in which a plate-shaped spring washer 12a is used at the outer end of the pivot pin 11 instead of the coil spring 12, and the bracket 9a and the support column 10 are connected to each other. The elastic contact force of these two members is made to correspond to the weight of the bonnet 9.

The present invention is constructed as described above, and when starting the engine 2, it is sufficient to close the bonnet 9 and pull the operating handle 15 rearward. Furthermore, when performing maintenance and inspection on the engine 2 and other transmission parts, the bonnet 9 can be opened upwards around the pivot pin 11, and the starter rope 14 will move below the pivot pin 11, allowing the bonnet 9 to be opened upward. Since the rear part is urged forward by the elastic force of the starter rope 14, the open state of the bonnet 9 is automatically maintained, so the bonnet 9 is artificially held using a special fixing member or the like. This allows maintenance and inspection to be carried out without any trouble.

In the embodiment of the rice transplanter of the present invention, when the bonnet 9 is open, the operating handle 15 is
The handle 15 faces further backward and downward than the type shown in Fig. 5, so the seedling table 4 at the rear of the machine becomes a nuisance.
The pulling operation becomes completely difficult, and the danger of unexpected engine starting during inspection and maintenance is completely prevented, allowing safe maintenance and inspection work.

As described above, the present invention provides a mobile agricultural machine in which the rear part of the bonnet that covers the upper part of the engine mounted at the front and rear of the machine body is pivoted to the machine body, and the bonnet can be opened and closed in the vertical direction around the pivot point. Attach the operation handle provided at the end of the recoil starter rope that extends from the bonnet to the rear of the bonnet, and set the attachment so that the starter rope is located below the opening/closing fulcrum when the bonnet is open. A bonnet opening/closing device for a mobile agricultural machine characterized in that the contraction force biases the bonnet in the direction of opening the bonnet, the device comprising:
Since the starter rope itself uses its own elastic force to keep the bonnet open, there is no need to provide special fixing members such as stays, and the bonnet pivot connection and starter rope By skillfully utilizing the setting location, the structure can be made simple, and the opening/closing operation is easy, light and quick, and is not cumbersome. In this case, when the bonnet is opened, the operating handle faces backward and downward, making it impossible to start the engine and allowing safe maintenance work.

[Brief explanation of the drawing]

Figures 1 to 4 show a rice transplanter equipped with the device of the present invention. Figure 1 is an overall side view of the rice transplanter, Figure 2 is a side view of the main parts, and Figure 3 is the main parts. FIG. 4 is a cross-sectional view showing another example of FIG. 3. FIG. 5 is a side view of essential parts showing a comparative example of the present invention. 2...Engine, 3...Driving operation handle, 9
...Bonnet, 11...Pivot pin, 15...Operation handle.

Claims (1)

[Scope of utility model registration request] A recoil starter that extends from the engine in a mobile agricultural machine in which the rear part of the bonnet that covers the upper part of the engine mounted on the front of the machine is pivoted to the machine body so that the bonnet can be opened and closed in the vertical direction around the pivot point. The operation handle provided at the end of the rope is attached to the rear of the bonnet, and the attachment part is set so that the starter rope is located below the opening/closing fulcrum when the bonnet is open.When the bonnet is opened, the elastic force of the starter rope is used to open the bonnet. A bonnet opening/closing device for a mobile agricultural machine characterized by being biased in a direction.