JPH02146252A - Air intake device for engine of moving vehicle - Google Patents

Abstract

PURPOSE:To avoid the suction of dirts and the like scattered by a vehicle to the air intake port by opening the air intake port at the rear side of the seat arranged at the upper side of an engine and combining between the air intake port and the engine with an air suction passage. CONSTITUTION:This moving vehicle furnishes the engine 1 at the rear side of the main body, and a seat 2 is arranged at the upper side of a cover 17 which covers the outer periphery of the engine 1. The seat 2 is formed of a seating surface 2a and a seat back 2b, and an elastic foamy material 6 is filled inside the seat 2. In this case, an air intake port 4 is opened at the rear side of the seat back 2b, and an air suction passage 5 is formed along between the air intake port 4 and the central lower side of the seating surface 2a. And at the central upper side of the cover 17 responding to the air suction passage outlet at the central lower side of the seating surface 2a, a vent 18 is opened, and a seal tube 19 is provided to cover between the vent 18 and the engine 1. And the lower end of the seal tube 19 is connected to a carburetter 20.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to an air intake device for engine combustion in mobile vehicles.

[Prior Art and Problems to be Solved by the Invention] Conventional air intake devices for engine combustion in mobile vehicles have air intake ports that open inside the fender or above the steps, which prevents dirt and mud scattered by the axle and onto the steps. The filters were often clogged and took a long time to clean.

[Means for Solving the Problems] The present invention aims to solve the problems of the conventional device, and incorporates the following technical means, that is, as claimed in claim (1). is characterized in that, in a mobile vehicle 3 having a seat 2 above an engine 1, an air intake port 4 is provided on the rear surface of the seat 2, and the air intake port 4 and the engine 1 are connected by an intake passage 5. This is the configuration of an air intake device for an engine of a mobile vehicle.

Further, claim (2) provides an air intake device for an engine of a mobile vehicle according to claim (1), characterized in that the intake passage 5 is made of an elastic foam material 6 such as sponge or urethane. The structure is as follows.

[Effects of the Invention] The present invention has the following technical effects due to the structure of claim (1). That is, the air intake 4 to the engine l
Since the air intake part is located at the rear of the seat 2, the air intake part is located higher than before, and the mud that is scattered by the wheels or on the steps is not inhaled, so there is less clogging of the filter.
The frequency of cleaning is also reduced.

Next, the configuration of claim (2) provides the following technical effects. That is, since the intake passage 5 inside the seat 2 is made of an elastic foam material 6 such as sponge or urethane, if the intake air contains dust, the elastic foam material 6
Demonstrates cleaning effect in certain areas. Further, this elastic foam material 6 becomes a part of the cushion of the seat 2.

[Examples] Examples of the present invention will be described in detail below by way of example with reference to the drawings. However, the dimensions, materials, shapes, relative arrangements, etc. of the component parts described in this example are not intended to limit the scope of this invention to only those, unless there is a specific description. , is merely an illustrative example.

On the same side, the present invention is incorporated into a mobile vehicle 3, which is a riding mower.

This moving vehicle 3 has an engine 1 attached to the rear of the body, and a seat 2 above the engine 1.

A steering wheel 7 for driving and a steering wheel frame 8 for supporting the steering wheel 7 are attached to the front upper part of the body, and front wheels 9.9 for steering are provided on the lower left and right sides.

Reference numeral 10 denotes a main frame, and a mower 12 is suspended between the front and rear wheels 9° 11 below the main frame 10 via links 13, 13 so as to be vertically movable.

This mowing tool 12 includes a rotary cutting blade (not shown).

) is provided, and the driving force of the engine 1 is transmitted to the driving pulley 14.
and a driven pulley 16.

The outer periphery of the engine 1 is covered with a cover 17, and this cover 1
The seat 2 is attached to the upper surface of the seat 7.

The seat 2 consists of a seating surface part 2a and a backrest part 2b, the interior of which is filled with an elastic foam material 6 such as sponge or urethane, either integrally or separately, and an air intake port 4 provided at the rear of the backrest part 2b. An intake passage 5 is formed between the lower center surface of the seating surface portion 2a and the lower center surface of the seating surface portion 2a.

This intake passage 5 is filled with an elastic foam material 6 such as the above-mentioned sponge or urethane, and dust in the intake air is attached thereto to clean the intake air to the engine 1.

A ventilation hole 18 is opened in the center of the upper surface of the cover 17 at the portion corresponding to the outlet of the intake passage 5 on the lower center of the seating surface 2a of the seat 2, and the ventilation hole 18 and the engine 1 are connected by a seal tube 19 to prevent outside air from entering. Prevent entry.

The lower end of the seal cylinder 19 is connected to the carburetor 20,
Air passing through the intake passage 5 is supplied to the carburetor 20.

The above-mentioned elastic foam material 6 such as sponge or urethane in the intake passage 5 may be a coarse filter, and another fine filter (not shown) may be provided in the intake passage near the carburetor 20.

[Brief explanation of the drawing]

The drawings show an embodiment of the present invention, in which FIG. 1 is a cross-sectional side view of a main part, and FIG. 2 is a partially cross-sectional overall side view. In the figure, 1 is the engine, 2 is the seat, 3 is the moving vehicle, and 4
5 is an air intake port, 5 is an intake passage, and 6 is an elastic foam material.

Claims (2)

[Claims] (1) In a mobile vehicle 3 having a seat 2 above an engine 1, an air intake port 4 is provided on the rear surface of the seat 2, and an air intake passage 5 connects the air intake port 4 and the engine 1. Features: Air intake device for engines of mobile vehicles. (2) The air intake device for an engine of a moving vehicle according to claim (1), wherein the intake passage 5 is made of an elastic foam material 6 such as sponge or urethane.