JPH089408Y2 - Air-cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Industrial application] The present invention relates to an air cleaner, and more particularly to an air cleaner used in an internal combustion engine.

[Conventional technology]

An air cleaner used in an internal combustion engine is attached to an air intake port of a carburetor, and is for removing dust contained in the intake air.

Typical examples of conventional air cleaners are shown in FIGS. 11 to 13.
It will be described with reference to the drawings.

The air cleaner 11 includes an upper case 12a having an air inlet 13a and a lower case 12b having an air outlet 13b, and a single piece of paper 15 bent to form a large number of pleats in the air cleaner case 12. An air cleaner element (14) having a rectangular parallelepiped shape in which side edges and front and rear ends are held by holding members (16) is housed. Air, which is the excess fluid, is sucked into the air cleaner case 12 from the air intake 13a and flows from the upper side to the lower side of the rectangular parallelepiped air cleaner element 14, at which time the air cleaner element 14 causes the air to pass and dust. Only the removed clean air is discharged from the air outlet 13b.

[Problems to be solved by the device]

However, due to requirements such as weight reduction of automobiles, improvement of living space, design, etc., the inside of the engine room is narrowed, inevitably the installation space of the air cleaner is limited, and the shape of the installation space is often complicated. . Therefore, the outer shape of the air cleaner must be adapted to the installation space of the air cleaner in the engine room.

However, the conventional air cleaner as described above is
As shown in the figure, since the air cleaner element 14 is formed in a rectangular parallelepiped shape, the outer shape of the air cleaner case 12 that houses the air cleaner element 14 must also be a rectangular parallelepiped shape as shown in FIG. 11. I don't get it. Therefore, it may not be possible to fit in a complicated and restricted installation space in the engine room. Also, when trying to install in a restricted installation space, it is inevitably necessary to downsize the entire air cleaner, so that the air cleaner element is also downsized, the flow path resistance increases, and the overperformance decreases. Was causing problems.

The present invention was created in view of the above circumstances, and an object thereof is to provide an air cleaner that can be installed in a restricted installation space in an engine room and has excellent overperformance. To provide.

[Means for solving the problem]

In order to solve the above problems, the present invention folds a sheet of paper to form a large number of folds to form a single piece of paper, and holds the side edges and front and rear ends of this single piece of paper via holding members. In an air cleaner in which an air cleaner element is housed in an air cleaner case having an air inlet and an air outlet, a part of the air cleaner element is cut out in a direction intersecting a fold line of a fold and an inclined surface. And the air cleaner case has a configuration corresponding to the outer shape of the air cleaner element.

[Action]

The air cleaner of the present invention has an inclined surface formed by notching a part of the air cleaner element in a direction intersecting the folding ridge line of the fold, and the air cleaner case corresponds to the outer shape of the air cleaner element. Since it is formed as described above, it can be stored corresponding to the installation space of the air cleaner in the engine room.

Further, since a part of the air cleaner element is cut out in a direction intersecting with the fold ridgeline of the fold to form the inclined surface, the filtering area can be expanded by that much and the filtering performance can be enhanced.

〔Example〕

An embodiment of the air cleaner according to the present invention will be described below with reference to FIGS. 1 to 10.

As shown in FIGS. 1 and 2, an air cleaner 1 according to the present invention includes an air cleaner element 4 and an air cleaner case 2 that accommodates the air cleaner element 4.

An inclined surface 7 is formed in the air cleaner element 4 by cutting out substantially half of its upper surface in a direction orthogonal to its longitudinal direction.

The air cleaner case 2 has an outer shape corresponding to the outer shape of the air cleaner element 4.
The air cleaner case 2 is composed of an upper case 2a having an air inlet 3a protruding therefrom and a lower case 2b having an air outlet 3b protruding therefrom. As shown in FIG. 2, the upper case 2a has an inclined surface 38 corresponding to the inclined surface 7 of the air cleaner element 4.

As shown in FIG. 3, the air cleaner element 4 includes a paper unit 5 having a mountain-shaped fold structure in which bent ridge lines are parallel to each other, and a resin unit for holding side edges and front and rear ends of the paper unit 5. And a holding plate 6 of the air cleaner element 4, and a triangular prism-shaped notch is cut from a rectangular parallelepiped 8 virtual from the appearance of the air cleaner element 4 in parallel with a side 8a thereof from a corner 8'a to a corner 8'b. By taking it, the inclined surface 7 is formed on the upper surface of the single paper 5. The air cleaner element 4 is sealed and held by being engaged with the upper case 2a and the lower case 2b via an engaging projection 6a formed on the holding member 6.

As the shape of the inclined surface formed on the upper surface of the air cleaner element 4, in addition to the example shown in FIG. 3, as shown in FIG. It may be a triangular inclined surface 17 in which a triangular pyramid having 8'a as the apex is cut out, or, as shown in FIG. 5, the corners of the imaginary rectangular parallelepiped 8 are first cut out in a vertical triangular prism shape. It may be a trapezoidal inclined surface 27 formed by obliquely notching the remaining corners. The shape of the notched portion, that is, the inclined surface, of the air cleaner element may be determined according to the shape of the installation space of the air cleaner in the engine room. The shape of the air cleaner case 2 is an air cleaner element having the notched portion. By having a shape corresponding to the outer shape of No. 4, the air cleaner 1 can be fitted in a predetermined installation space in the engine room. Further, as described above, since the air cleaner element 4 is provided with the notched portion only at a necessary portion, it is not necessary to downsize the whole as in the conventional air cleaner, and therefore the excessive area is sufficiently large. You can secure the quality.

Next, regarding the formation of the air cleaner element 4,
The air cleaner element shown in FIG. 4 will be described as an example with reference to FIGS. 6 to 8.

As described above, the air cleaner element 4 is composed of the paper unit 5 and the resin holding member 6 that holds the side edge and the front and rear ends of the paper unit 5. As shown in FIGS. 6 to 8, a single piece of paper 5 is formed from a large number of sheet-like papers 5 ′ having a predetermined fold depth H and fold pitch P from one side to the other side by corrugation in advance. It is bent so as to form a fold.

In order to form the inclined surface 17 shown in FIG. 4, the above-mentioned paper 5'is located in the vicinity of one side end of the paper sheet 5 as shown in FIG. triangular notches 5c ₁ ~5c ₄ having vertices a predetermined position of the line 5a is formed. In this case, the shape of each notch is similar shapes, tip 5d ₁ ~5d ₄ of each notch is formed on the gradually deeper along the imaginary oblique straight line 5e. Such papers 5 'and when bent form as described above is as shown in FIG. 7, the inclined side l of opposing partitioning the notch 5c ₁ ~5c _4, l is not attached, must Depending on the situation, they may be bonded with an adhesive or the like. Then, the paper unit 5 processed as described above is inserted into a mold, and a resin (polyethylene, polypropylene, or the like) is poured thereinto, so that the side edges of the paper unit 5 and the cuts 5c _{1 to} 5c ₄ are made of resin. Member 6
The air cleaner element 4 is held by the air cleaner element 4 as shown in FIG. The position of the notches 5c ₁ ~5c ₄ shown in FIG. 6, the size, by changing the shape or the like, can be changed the shape of the inclined surface 17, the forming positions and the like as appropriate.

In the above-mentioned example of forming the air cleaner element 4, the paper 5'in the unfolded state of the single paper 5 is subjected to predetermined processing in advance, but the formation of the air cleaner element 4 in the present invention is not limited to this. Instead of forming the single piece of paper 5, a predetermined portion may be cut with a cutter or the like to form an inclined surface, and then the holding member 6 may hold the inclined surface. Furthermore, as shown in FIG.
The inclined surfaces 7 and 7 may be formed on both sides of the air cleaner element 4 in the longitudinal direction, or as shown in FIG. 10, triangular inclined surfaces 17 and 17 may be formed at the corners at diagonal positions. Good,
The inclined surfaces 17 of this shape may be formed at the four corners.

[Effect of device]

As is clear from the above description, the air cleaner of the present invention has an inclined surface formed by notching a part of the air cleaner element in a direction intersecting with the folding ridgeline of the fold, and the air cleaner case is formed by this air cleaner case. Since the cleaner element is formed in accordance with the outer shape of the cleaner element, it can be installed in a complicated and restricted space in the engine room.

Further, since a part of the air cleaner element is cut out in a direction intersecting with the folded ridgeline of the fold to form the inclined surface, the filtering area can be expanded by that much and the filtering performance of the air cleaner can be enhanced.

[Brief description of drawings]

1 is a perspective view of the air cleaner of the present invention, FIG. 2 is a sectional view taken along the line AA of the air cleaner of FIG. 1, and FIG.
FIG. 4 is a perspective view of an air cleaner element used in the air cleaner shown in FIG. 4, FIGS. 4 and 5 are perspective views showing another example of the air cleaner element used in the air cleaner of the present invention, and FIG. FIG. 7 and FIG. 7 are perspective views of a single piece of paper formed by bending the paper shown in FIG. 6, and FIG.
7 is a sectional view taken along the line BB of FIG. 7, FIGS. 9 and 10 are perspective views showing another embodiment of the air cleaner element according to the present invention, and FIG. 11 is a perspective view of a conventional air cleaner, First
12 is a sectional view taken along line CC of the air cleaner shown in FIG.
The figure is a perspective view of an air cleaner element used in the air cleaner of FIG. 11. 1 ... Air cleaner, 2 ... Air cleaner case, 2a ...
Upper case, 2b ... Lower case, 3a ... Air intake, 3b ...
Air outlet, 4 ... Air cleaner element, 5 ...
Paper alone, 6 ... holding member, 7, 17, 27 ... inclined surface, 8 ... virtual rectangular parallelepiped.

Claims (1)

[Scope of utility model registration request] 1. An air cleaner element in which a sheet of paper is bent to form a large number of pleats to form a single piece of paper, and the side edges and front and rear ends of the single piece of paper are held by holding members. In an air cleaner housed in an air cleaner case that has an inlet and an air outlet,
A part of the air cleaner element is cut out in a direction intersecting the ridge of the fold to form an inclined surface,
The air cleaner case is formed according to the outer shape of the air cleaner element.