JPH0645653Y2 - Air cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION << Industrial Application Field >> The present invention relates to an air cleaner, and more specifically to an air cleaner used in an internal combustion engine or the like.

<< Prior Art >> Generally, an air cleaner used in an internal combustion engine or the like includes a filter element, a case composed of a case main body for accommodating the filter element and a cover, and the air to be purified is introduced into the case. And an air supply port formed in the bottom of the case for discharging the air purified by the filter element. In the air cleaner, the air supply port is usually coupled and supported by an air duct from a carburetor or the like, while the purified air is supplied from the air supply port to the carburetor.

Further, in a normal air cleaner, the air supply port is formed in the center of the case bottom.

<Problems to be solved by the invention> However, due to the space in the engine room of the vehicle, there are cases where it is necessary to form the air supply port of the air cleaner eccentrically from the center of the bottom of the case. come. At this time, the air cleaner inevitably decenters the supporting position of the air duct from the carburetor or the like, which causes a problem that vibration easily occurs in the case portion.

Therefore, an object of the present invention is to provide an air cleaner capable of preventing vibration even when the air supply port is formed at a position deviated from the center of the bottom of the case.

<Means for Solving the Problems> The present invention relates to a filter element, a case consisting of a case main body for accommodating the filter element and a cover, and an air formed in the case for introducing air to be purified into the case. In an air cleaner provided with an intake and an air supply port for purifying air, which is purified by the filter element formed at the bottom of the case, the air supply port is provided at a position off the center of the case body. In addition, the case body and the cover of the case are coupled by a fitting type coupling mechanism having a vibration isolating member arranged in the center of the case.

<Operation and effect of device> In the air cleaner of the present invention described above, since the case main body and the cover are connected by the fitting type connecting mechanism having the vibration isolating member, which easily causes vibration, the air supply port Is provided at a position deviated from the center of the case main body and is supported there, it is possible to sufficiently prevent the occurrence of vibration.

<< Embodiment >> An air cleaner according to a preferred embodiment of the present invention will be described below with reference to the accompanying drawings.

FIG. 1 is a sectional view of an air cleaner according to an embodiment of the present invention.

In this figure, reference numeral 1 indicates an air cleaner, and the air cleaner 1 has a cleaner case 2. The cleaner case 2 is composed of a case body 3 and a cover 4 made of synthetic resin or an iron plate. A filter element 5 is attached inside the cleaner case 2. Further, the cover 4 of the case 2 is provided with an air intake 6 for introducing air to be purified, while the filter element 5 is provided at a position deviated from the center of the bottom portion 7 of the case body 3. An air supply port 8 is provided for supplying the air purified in 1. to a carburetor (not shown) or the like. Therefore, an air duct from a carburetor or the like is coupled to the air supply port 8 (not shown), and the air cleaner 1 is supported by the air duct.

At the center of the case body 3, a cylindrical coupling portion 9 is formed so as to bulge toward the inside of the case 2. On the other hand, in the central portion of the inner surface of the cover 4, as shown in the drawing, a rod-shaped coupling portion 10 which can fit into the cylindrical coupling portion 9 is integrally formed. At the lower end of the rod-shaped connecting portion 10, a cylindrical vibration-damping member 11 having one end closed is fitted and inserted as shown in an enlarged view in FIG. The vibration-proof member 11 is formed of, for example, a vibration-proof rubber or the like, and is fitted to the rod-shaped joint portion 10 in advance
It is pushed into the cylindrical joint 9. . Therefore, the case body 3 of the case 2 and the cover 4 are joined by the joining mechanism 12 including the rod-like joining portion 10 having the vibration isolating member 11 and the cylindrical joining portion 9 into which the rod-like joining portion 10 is fitted. . In addition, the outer part of the case 2 is
It is tightly closed.

The filter element 5 comprises an inner frame 13 and an outer frame 14 arranged concentrically, and a filter paper 15 arranged between the inner frame 13 and the outer frame 14. The inner frame 13 and the outer frame 14 are integrally formed with an annular inner flange 16 and outer flange 17 for mounting the filter element 5 on the case 2. Inner flange 16 is an inner frame
It extends inward from 13 and its inner diameter is slightly smaller than the outer diameter of the cylindrical joint 9. A ring-shaped member 18 made of an elastic material is fixed to the inner peripheral edge of the inner flange 16. Filter element 5
In the inner portion thereof, the inner flange 16 to which the ring-shaped member 18 formed of an elastic body is fixed at the inner peripheral edge portion is in the tightly clamped state, and the cylindrical joint portion 9 of the case body 3 is
It is attached to the case 2 by being fitted to.

On the other hand, the outer flange 17 extends outward from the outer frame 14, and its outer diameter is set to be slightly larger than the inner diameters of the case body 3 and the cover 4. As a result, the filter element 5 is attached to the case 2 with the outer peripheral edge portion of the outer flange 17 being sandwiched between the case body 3 and the cover 4 at the outer portion thereof.

In the air cleaner described above, even if the case 2 of the air cleaner is eccentrically supported by the extended portion of the carburetor, that is, the air duct or the like, and vibration easily occurs structurally, the coupling mechanism 9 including the vibration isolating member 11, Ten
Since the case body 3 and the cover 4 are joined by the above, it is possible to effectively prevent the vibration generated between the case body 3 and the cover 4, and also to prevent the vibration from the entire air cleaner. it can.

[Brief description of drawings]

FIG. 1 is a sectional view of an air cleaner according to an embodiment of the present invention, and FIG. 2 is a sectional view showing a main part of the air cleaner. 1 ... Air cleaner, 2 ... Case, 3 ... Case body, 4 ... Cover, 9 ... Cylindrical joint, 10 ... Rod joint, 11 ... Anti-vibration member, 12 ... Joint mechanism

Claims (1)

[Scope of utility model registration request] 1. A filter element, a case including a case body for accommodating the filter element, and a cover,
The case is provided with an air inlet for introducing air to be purified into the case, and an air supply port formed at the bottom of the case for discharging the air purified by the filter element. In the air cleaner, the air supply port is provided at a position deviated from the center of the case body, and the case body and the cover of the case have a vibration-proof member arranged in the center of the case. An air cleaner characterized by being joined by.