JPS5933868Y2 - Engine carburetor dust control device - Google Patents

Description

[Detailed description of the invention] The present invention relates to a dust prevention device for a carburetor of an engine used in a dusty atmosphere, in which a disc-shaped air cleaner is protruded laterally and outwardly through the carburetor on the lateral outer surface of the engine body. The present invention relates to a type in which the carburetor housing space between the engine body and the air cleaner is covered with a dustproof plate.

The purpose is to provide reliable dustproofing while also having a simple structure that allows the choke lever of the carburetor to be easily operated from the outside.

In order to be able to directly operate the choke lever, it is necessary to make a large window hole in the dustproof plate for inserting your finger and operating it.

In this case, there is a drawback that external dust enters through the window hole and adheres to and accumulates on the carburetor, causing the carburetor to become out of order.

In order to eliminate this drawback, it is conceivable to provide a hand lever on the outer surface of the dustproof plate and to interlock and connect a choke lever to this hand lever.

In this case, the disadvantage is that the structure becomes complicated due to the extra hand levers and interlocking devices required.

In order to solve both of the above problems, the present invention covers the window hole with a flexible dustproof membrane, allows the choke lever to pass through a guide slit formed in the dustproof membrane, and protrudes outside the dustproof plate. can be directly operated outside the dustproof plate almost along the guide slit.

Embodiments of the present invention will be described below with reference to the drawings.

The drawing shows an agricultural walking combine harvester, which has the following basic structure.

That is, a planted culm weeding tool 2, a raising device 3, a reaping device 4, a rear conveyance device 5, and a threshing machine 6 are arranged in order from the front to the rear of the vehicle body 1. A forced air-cooled engine 7 is disposed at the front lower part of the left half, and a control device 8 is disposed at the rear upper part.

The forced air-cooled engine 7 is equipped with a cooling fan 10, a recoil starter 11, and a dust-proof air intake cover 12 with an open bottom on the front side of a vertical air-cooled side valve engine body 9. An air cleaner 14 is provided to protrude outward to the left, a muffler 15 is installed at the rear left side of the air cleaner 14, and the back surface thereof is configured as a cooling exhaust air blowing surface 16.

The cooling exhaust air blowing surface 16 of the engine 7 faces the lower right quarter of the front wall 18 where the culm supply port 17 of the threshing machine 6 opens.

The upper surfaces of the engine 7 and the muffler 15 are covered with a dustproof cover 19 made of a single iron plate.

This dustproof cover 19 has an upward slope at the rear of the engine body 9.
It is fixed to the mounting bolt 21 of the cylinder head 20 of.

A carburetor housing space 22 is formed between the engine body 9 and the air cleaner 14.

The upper surface and the upper half of the front surface of this carburetor housing space 22 are covered with a dustproof plate 23 made of iron plate, and this dustproof plate 23 is detachably fixed to the left side surface of the dustproof cover 19.

With the dustproof plate 23 removed, the carburetor 13 can be inspected.

The lower front half of the vaporizer housing space 22 is covered with a flexible dustproof membrane 24 made of nylon, rubber, or cloth and having some weight, and this dustproof membrane 24 is fixed to the inner surface of the front wall of the dustproof plate 23. Ru.

Grass divider frames 25 extend diagonally upward from the weed divider 2 at each end of the left and right ends, and the left side weed divider frame 25 is connected to a dustproof membrane 24.
and the threshing machine 6 through each lower side exterior of the air cleaner 14.
Reach the front left edge of.

A window hole 26 is opened in the front wall of the dustproof plate 23, and this window hole 2
6 is closed by the upper part 24a of the dustproof film 24.

A guide slit 27 is cut straight down to the right in a portion 24a of the dustproof film 24 that closes the window hole 26.

The choke lever 28 of the carburetor 13 is connected to the guide slit 27
It passes through and projects out of the window hole 26.

The choke lever 28 runs approximately along the guide slit 27.
It is configured to be able to freely switch and swing around the choke shaft 29 between a choke release position closer to the upper left and a choke position closer to the lower right.

Note that the throttle lever 30 of the carburetor 13 is connected to the rod 3
1 and the governor lever 32, the governor 33 and the governor spring 34 are opened and closed in a coordinated manner.
is linked to.

Since the present invention is configured as described above, it has the following effects.

(b) By covering the carburetor housing space with a dustproof plate and closing the window hole in the dustproof plate with a dustproof film, the dustproof plate and dustproof film will ensure that external dust will not accumulate on the vaporizer. It can be prevented.

(b) The choke lever protrudes outside the window hole of the dustproof plate through the slit in the dustproof membrane, so it can be operated directly and easily from the outside, and the structure for this is as simple as sticking the dustproof membrane in the window hole. You can make it into something.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which Fig. 1 is a side view of an agricultural walking combine harvester, Fig. 2 is a front view, Fig. 3 is a vertical side view of the engine section, and Fig. 4 is a perspective view of Fig. 3. , Figure 5 is the fourth
It is a perspective view of the figure V section. 9...engine body, 13...carburizer, 14...air cleaner, 22...carburizer housing space, 23...dustproof plate , 24a...
...Dust-proof membrane, 26...Window hole, 27...
・Guide slit, 28...Choke lever.

Claims (1)

[Scope of utility model registration request] A disk-shaped air cleaner 14 is provided on the lateral outer surface of the engine body 9 through a carburetor 13 so as to protrude laterally outward.
and the air cleaner 14 is covered with a dustproof plate 23, a window hole 26 is opened in the dustproof plate 23, and a window hole 26 is opened in the dustproof plate 23.
6 is closed with a flexible dustproof film 24a, a guide slit 27 is formed in the dustproof film 24a, and the choke lever 2 of the carburetor 13 is closed.
8 to protrude outside the window hole 26 through the guide slit 27,
A dustproof device for an engine carburetor in which a choke lever 28 is movable almost along a guide slit 27.