JP2002213310A - Air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce cost by designing a filter to be easily replaceable in a structure of an air cleaner arranged on an air intake of an automobile internal combustion engine. SOLUTION: The air cleaner 1 has the filter 4 removably mounted on a main frame 2 of the air cleaner.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to, for example, the structure of an air cleaner provided at an air intake port of an internal combustion engine for an automobile.

[0002]

2. Description of the Related Art Conventionally, in a cleaning air cleaner which is connected to an intake port of an internal combustion engine of an automobile or the like via an air cleaner hose, a filter element (made of stainless steel mesh) which is contaminated with dust or the like is replaced. Replace it with a new air cleaner together with the stainless steel main body (body) to which the filter element is attached, or remove the existing air cleaner from the air cleaner hose, wash it, attach it to the air cleaner hose again, and reuse it It has been known.

[0003]

However, since the air cleaner is replaced with the main body, waste is increased in cost, and it takes time to clean and reuse the air cleaner. An air cleaner according to the present invention is proposed to solve such a problem.

[0004]

The gist of the present invention for solving the above-mentioned problems of the air cleaner according to the present invention is that the filter is detachably mounted on the main frame of the air cleaner.

[0005] The filter is formed of a non-woven fabric, and a plant frame which is interposed inside the filter and maintains the shape of the filter is mounted on a main frame which is a base on which the filter is mounted. Is included.

Further, the plant frame is provided with rectifying vanes arranged at circumferential intervals so as to rectify the intake air while maintaining the shape of the filter in a substantially conical or trapezoidal shape. Is included.

According to the air cleaner of the present invention, if the filter becomes contaminated, the old removable filter can be easily replaced with a new filter.

Further, since the filter is formed of a nonwoven fabric, a high dust collecting effect is obtained, and the suction efficiency is improved.
The filter is attached to a plant frame mounted on a main frame and is exposed to the outside. Therefore, the degree of dirt on the filter can be easily checked from the outside, and furthermore, by giving this filter a color such as blue, orange, or black, it becomes excellent in fashionability.

Further, in the plant frame, the air taken into the intake pipe by the rectifying vanes is synchronized and aligned, so that the intake resistance is reduced.

[0010]

Next, an air cleaner according to the present invention will be described with reference to the drawings. As shown in FIG. 1, an overall schematic configuration of an air cleaner 1 of the present invention includes a main frame 2 attached to an intake port of an intake pipe on a vehicle body side, a plant frame 3 mounted on the main frame 2,
A filter 4 mounted on the plant frame 3
An end plate 5 serving as a lid member for holding the filter (filter material) 4 from falling off the main frame 2; and a center bolt 6 for fastening the plant frame 3 and the filter 4 so as not to fall off the main frame 2. It is composed of

Each of the above components will be described in detail. First, as shown in FIGS. 1 and 2, the main frame 2 is made of a synthetic resin (for example, nylon (registered trademark)).
Etc.). This structure has a frame main body 2c having a large opening through hole 2a at the center and a ring-shaped outer peripheral portion to form a concave portion 2b, and a cylindrical shape vertically provided from a peripheral edge of a lower surface of the frame main body 2c. A mounting flange 2e having a plurality of slits 2d at appropriate intervals, a fastening portion support member 2f extending obliquely upward from four locations on the edge of the through hole 2a of the frame body 2c, and the fastening portion support member 2f
And a fastening portion 2g which is supported by the nut and is fixed to the nut.

The frame main body 2c has, for example, a size of about 170 mm in diameter. Also,
The overall height is about 85 mm. For example, a concave portion for a hexagon nut is formed in the fastening portion 2g, and a knurl is provided in the concave portion, and the hexagon nut 7 is press-fitted into the concave portion or is insert-molded. The nut 7 is fixed so as to withstand a tightening force (extraction force) of a predetermined torque.

The mounting flange 2e is mounted on an intake pipe on the vehicle body via a mounting member made of aluminum die-cast. The slit 2d is provided to allow the mounting flange 2e to be fitted to the mounting member with a slight elastic behavior.

As shown in FIG. 3, the plant frame (also referred to as a power plant frame) 3 is made of a synthetic resin (for example, nylon (registered trademark) or the like), and is entirely formed in a conical or trapezoidal shape. ing. A plurality of rectifying blades 3a are provided at intervals in the circumferential direction so as to rectify the intake air while maintaining the shape of the filter 4 in a substantially conical or trapezoidal shape.

The lower portion of the plant frame 3 is entirely open, and the lower peripheral portion 3b is placed on the inner wall surface of the concave portion 2b of the main frame 2. On the other hand, at the upper part, a support member 3c extends horizontally from four directions toward the center, and a fitting part 3d for assembly is provided at the center.

In the lower part of the fitting part 3d,
A concave portion 3e having a shape fitting with the fastening portion 2g of the main frame 2 is formed, and the end plate 5
A concave portion 3f having a shape to be fitted to the lower portion is formed.

The rectifying blades 3a of the plant frame 3 maintain the filter 4 in a required shape, and rectify the air passing through the filter 4. This serves as a skeleton that forms the entire shape of the air cleaner 1.

The filter 4 is composed of a colored non-woven fabric and a mesh which is attached to the outer periphery of the non-woven fabric and which is made of synthetic resin and has a stainless steel coating. The color of the non-woven fabric is, for example, blue, orange, black, or the like, and the non-woven fabric has a fashionable property so that its presence can be recognized as soon as the hood of the automobile is opened. The fitter 4 is put on the plant frame 3 while being fitted to the rectifying blades 3a of the plant frame 3.

As shown in FIG. 4, the end plate 5 is made of a synthetic resin (for example, nylon (registered trademark)) and closes an upper opening of the filter 4. As a result, the air sucked into the air cleaner 1 flows only from the filter 4 on the side surface.

The lower central projection 5 of the end plate 5
“a” is fitted into the recess 3 f of the plant frame 3. The through hole 5b of the lid convex portion 5a is for inserting a screw.

As shown in FIG. 5, the center bolt 6 is integrally formed with a bolt 6a and a head 6b made of synthetic resin. The bolt 6a is inserted into the through hole 5b of the end plate 5, passes through the fitting portion 3d of the plant frame 3, and is screwed to the nut 7 of the main frame 2.

The head 6b has an insertion hole 6 for inserting a hexagon wrench or the like into a screwdriver 6c on the upper surface of the bolt 6a.
d is provided, and a concave groove 6e is provided on the outer peripheral surface so as to be easily turned by hand.

In maintaining the screw fastening force of the main frame 2 to the nut 7 by the center bolt 6, a spring washer or a wave washer is interposed on the lower surface of the head 6b to prevent loosening due to vibration or the like. Things.

The plant frame 3, the filter 4 and the end plate 5 are fixed to the main frame 2 by the center bolt 6. Although not shown, a ring-shaped packing is interposed between the concave portion 2b of the main frame 2 and the lower portion of the filter 4.
A ring-shaped packing is also interposed between the upper part of the filter 4 and the contact part on the inner surface of the end plate 5.

According to the air cleaner 1 of the present invention formed as described above, as shown in FIG. 6, the air cleaner 1 is attached to an intake pipe of an engine of an automobile or the like via a mounting member. In the air cleaner 1, the main frame 2, the plant frame 3, and the end plate 5 are made of a synthetic resin, and are lightweight. The filter 4 is made of non-woven fabric.
As shown in the figure, the intake efficiency is improved, the engine power is improved, and high dust collection performance is exhibited. In FIG. 7, when the air cleaner 1 according to the present invention is used,
Shows a case where a paper type is used, and a case where a normal cleaner is used.

The filter 4 is easily attached to and detached from the main frame 2 by attaching and detaching the center bolt 6. That is, the bolt 6a is inserted into the insertion hole 6d of the center bolt 6 with a hexagon wrench or the like, the bolt 6a is rotated in the loosening direction to remove it from the nut 7 of the main frame 2, the end plate 5 is removed, and the dirty filter 4 is removed.
Then, the filter is replaced with a new filter 4, and the filter is put on the plant frame 3. The end plate 5 is put on the new filter 4 again. Thus, the replacement of the filter 4 is completed. Thus, conventionally, the filter was washed or the entire body was replaced. However, only the filter 4 can be replaced by the air cleaner 1 of the present invention.

[0027]

As described above, in the air cleaner according to the present invention, since the filter is detachably mounted on the main frame of the air cleaner, if the filter becomes dirty, the center bolt is used with a wrench or the like. It has an excellent effect that it can be easily removed and replaced with a new filter, so that no trouble is required.

Further, a plant frame which is formed of a non-woven fabric and is mounted on a main frame which is a base on which the filter is mounted, which is interposed inside the filter and maintains the shape of the filter, is mounted. Therefore, a high dust collecting ability is exhibited and the suction efficiency is improved. Furthermore,
Since the plant frame is provided with rectifying blades arranged at intervals in the circumferential direction so as to rectify the intake air while maintaining the shape of the filter in a substantially trapezoidal shape, high durability is maintained. At the same time, the air taken into the intake pipe by the rectifying blades is synchronized and aligned, so that the intake resistance is reduced and the power of the engine is increased.

[Brief description of the drawings]

FIG. 1 is an exploded perspective view of an air cleaner according to the present invention.

FIG. 2 is a plan view (A), a half-section front view (B) of the main frame in the air cleaner according to the present invention,
It is a bottom view (C).

FIG. 3 is a plan view (A) of a plant frame and a front view (B) of a half section in the air cleaner according to the present invention.

FIG. 4 is a plan view (A) of an end plate and a front view (B) of a half section in the air cleaner according to the present invention.
And a bottom view (C).

FIG. 5 is a plan view (A) and a cross-sectional view (B) of a center bolt in the air cleaner according to the present invention.

FIG. 6 is an explanatory diagram of a use state of the air cleaner according to the present invention.

FIG. 7 is a curve diagram showing a relationship between suction resistance and horsepower of the air cleaner according to the present invention.

[Explanation of symbols]

1 air cleaner, 2 main frame, 3 plant frame, 3a straightening vane, 3d fitting part, 4 filter, 5 end plate, 6 center bolt, 6a
Bolt, 6b head, 7 nut.

Claims (3)

[Claims] 1. An air cleaner, wherein a filter is detachably mounted on a main frame of the air cleaner. 2. A filter, which is formed of non-woven fabric, and a plant frame, which is interposed inside the filter and maintains the shape of the filter, is mounted on a main frame which is a base on which the filter is mounted. The air cleaner according to claim 1, wherein: 3. The plant frame is provided with rectifying vanes arranged at intervals in the circumferential direction so as to rectify the intake air while maintaining the shape of the filter in a substantially conical shape or a substantially trapezoidal shape. The air cleaner according to claim 2, wherein: