JPS5930206Y2 - Air purifier in tiller - Google Patents

Description

[Detailed Description of the Invention] The present invention relates to an air purifier for a tiller.

Conventionally, this type of air purifier is attached to a cultivator with the air purifier's intake port and the air connecting pipe connected to the vaporizer exposed to the outside, so that rainwater falling from above cannot escape. I was able to protect the filter surface of the air purifier with the cover of the air purifier. When washing the car power cultivator, water and muddy water will be scattered from the top, bottom, left and right sides, so do not cover the filter surface of the air purifier. Resistant to muddy water etc.
This had the disadvantage of reducing the air purifying effect.

The present invention aims to eliminate the above-mentioned drawbacks and prevent muddy water etc. from entering the air cleaner when cleaning the tiller and the tiller.

In the present invention, air communication holes communicating with the intake hole and the engine's tuna grill are bored in the horizontal part of the mounting plate, which is formed by a horizontal part and downward vertical parts on both sides of the horizontal part. Fix the air purifier including the air purifier cover and filter on the top surface,
A space for an intake passage is formed below the air purifier by the downward vertical part and the transmission case, and air is taken into the filter from the space.

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

Referring to FIG. 1, an engine 8 mounted on a front frame 22, a radiator 3 and a fuel tank 2 above the engine 8, and an exhaust system 4 at the rear of the engine 8 are connected with a bonnet 1 on the upper surface and a side cover 9 on the right side. An engine room E is formed by surrounding the left side with a belt cover 1.

The belt cover 7 is fixed to the transmission case 5 via the main pulley cover 4.

The mission case 5 is installed obliquely toward the rear, and a side triangular space H exists between the front surface of the mission case 5 and the back surface of the engine room E.

In the present invention, an air purifier 10 having a filter 11 housed inside an air purifying cover 12 is placed in the space H via a mounting plate 13.

Referring to FIG. 2, the mounting plate 13 is formed into a U-shape from a horizontal portion 14 and downward vertical portions 15, 15 at both ends of the horizontal portion 14, and is bent at the rear end of the vertical portions 15, 150. However, by being fixed to the side surface of the mission case 5 with bolts 16 and 16, the rear of the space H is sealed by the mission case 5.

An air communication hole 11 is bored in the horizontal part 14 of the mounting plate 13 at a position corresponding to the position of the air supply port in the center of the filter 11, and an air communication pipe 18 is inserted into the air communication hole 17 from below the horizontal part 14. The air inlet of the filter 11 is connected to the carburetor of the engine by fitting into a flange 17' provided downward on the outer periphery of the filter 11 and fastening with a band.

Intake holes 19 are provided at 140 horizontal portions of the mounting plate 13 corresponding to the positions of the intake surface of the filter 11.

The air purifier cover 12 is fixed to the mounting plate 13 by a cover fitting 21 and a nut 21' fixed to the upper surface of the horizontal part 14, and the cover gasket 20 and filter 11 are attached to the air purifier cover 12 and the cover fitting 21. The filter 11 is held at a predetermined position within the air purifier cover 12, and the air purifier cover 12 blocks the filter 11 from the outside.

The mounting plate 13 is blocked from above by the bonnet 1 in the direction of movement of the aircraft (the direction in which the air communication pipe extends), and by the belt cover 7 and side covers 9 on both sides, creating a bottleneck air passageway in the space H. will be formed in front of.

Therefore, from the outside to the intake hole 19, due to the existence of the space Hh and the air passage, the bonnet 1, belt cover 7, front frame 22, side cover 9, etc.
It is blocked by the transmission case 5 and the downward vertical portion 15 of the mounting plate 13, and muddy water, water, etc. cannot directly enter the intake hole 19.

At this time, it goes without saying that the space H and the air passage are not sealed from the outside, but that there are gaps in the lower and side parts that can suck in the air necessary for engine operation. For example, the gap G1 below the vertical portion 15 of the mounting plate 13. Gap G2 below the side cover 9, side opening G3 of the side cover 9, inter-frame gap G4 of the front frame 22 (
(See Figure 2)].

When the engine is operated, the engine's carburetor sucks air through the air communication pipe 18, but from the outside through the gap G2. G3. The air flows through the air passage from G4 etc. and flows into the space H through the gap G1, and is sucked into the air intake hole 19 of the horizontal part 14 of the mounting plate 13 as shown by the arrow f, and the filter 1
The clean air from which dirt, dust, etc. have been removed in step 1 is transferred to air communication pipe 18.
It flows to the engine's carburetor (in the direction of the arrow (E)) through the

When using the tiller in the field or washing it, muddy water, etc. from above can be prevented by the bonnet 1 and air cleaner cover 12, and muddy water, etc. from the sides can be prevented by the mounting plate 1.
In the vertical part 15 of 3, muddy water etc. from the front of the space H can be prevented by the back side of the engine room (that is, the main pulley cover 6, belt cover 1 and side cover 9 that make up the engine room), and the air intake hole 19 Since the transmission case 5 is located directly below, it is possible to prevent muddy water and the like from entering from below.

As described above, the present invention fixes the air purifier to a mounting plate formed in a U-shape by a horizontal part and downward vertical parts at both ends of the horizontal part, and attaches the air purifier to the mounting plate adjacent to the back side of the engine room of the power cultivator. The vertical part is fixed to the transmission case, and the horizontal part is provided with an air communication hole that communicates with the intake hole bag and the engine's carburetor, so that the passage of air from the outside to the intake hole is fixed to the transmission case. A bottleneck is formed by surrounding the vertical part of the mounting plate, the back of the engine room, etc., and prevents muddy water from entering the intake hole and air purifier filter from the sides and bottom when cultivating or washing the tiller. This has the effect of preventing this from happening.

Since the air purifier is installed via a mounting plate in the triangular space in side view between the back of the engine room and the front of the transmission case, the transmission case, engine room, etc. can be used to prevent muddy water from entering. This has the effect of reducing the number of necessary parts, and closing the triangular space in side view with the mounting plate and air purifier, improving the design of the power cultivator and increasing its commercial value.

[Brief Description of the Drawings] Figure 1 is a side view of a tiller implementing the present invention, Figure 2 is an exploded perspective view of Figure 1, and Figure 3a is a cross-sectional view taken along line AA in Figure 1.
FIG. DESCRIPTION OF SYMBOLS 1...Bonnet, 11...Fill b is BB sectional view of Figure 3a 5...Mission case, 13...Mounting plate, 14. ...Horizontal part (of the mounting plate), 15... Vertical part (of the mounting plate), 17
...Air communication hole, 19...Intake hole, E
...Engine room, H...Space.

Claims (1)

[Scope of utility model registration request] Mission case 5 facing the back of the engine room
The air cleaner is arranged in a triangular space when viewed from the side between the back of the engine room and the transmission case 5 with the front side of the air cleaner slanting backwards, the horizontal part 14 and the horizontal part 1
The downward vertical portions 15.15 of the mounting plate 13 formed in a U-shape are fixed to the transmission case 5 with the downward vertical portions 15, 15 on both sides of the space.
, and the air purifier cover 12 whose upper surface is sealed, and the air purifier cover 12 and the mounting plate 1 are placed on the horizontal part 14.
An air purifier 10 including a filter 11 inserted into a space between the horizontal part 14 of 3 and located above the intake hole 19 of the horizontal part 14 is fixed to the horizontal part 14 of the mounting plate 13 via a gasket 20. The air purifier cover 12 is attached via a cover fitting 21 that passes through the center through hole of the filter 11 and is screwed onto the air purifier cover 12 by a nut 21', and an air connection is provided in the horizontal part 14 to communicate with the intake hole 19 and the engine carburetor. An air purifying device for a tiller, characterized in that a hole 11 is formed.