JP2000205063A - Filter support structure and air cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce the number of parts used in air cleaners, facilitate their replacement work, and free their replaceable elements of careless force. SOLUTION: The air cleaner comprises a holder 2 for bearing a filter 1, and a plate 3 engaged with the holder 2 to secure the filter 1 to it separably. The holder 2 is integrally formed from an end support portion 25b for supporting one end of the filter 1, an interior support portion 21, 22 situated along the internal surface of the filter 1 to support it from within, and a case portion 25 as a part of a case for enclosing outside space of the filter 1. When engaged with the holder 2, the plate 3 bears the other end of the filter 1.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an air cleaner in which a cylindrical filter is detachably housed in a filter case.

[0002]

2. Description of the Related Art There is known an air cleaner in which a cylindrical filter is housed in a filter case, and the filter case is disassembled so that an internal filter member can be replaced. As shown in FIG. 9, this air cleaner is bonded to a cylindrical filter (a truncated cone) 101 at both ends of the filter 101 via adhesives 101a.
Plates 102A and 102B that support and sandwich 1
And a holder 103 provided along an inner peripheral surface of the filter 101 and configured by a punching plate or the like for holding the filter 101, a filter 101, a plate 102
Case 10 for housing A, 102B and holder 103
4 is provided.

[0003] The case 104 is composed of a case member 104A and a case member 104B which can be disassembled from each other.
02A, 102B and the holder 103 can be taken out and replaced.

[0004] The case member 104 has an air inlet 104 a communicating with the outer peripheral space of the filter 101. The plate 102A has an exhaust port 1 communicating with the internal space of the filter.
The exhaust port 102a is hermetically sandwiched between the case member 104A and the case member 104B via the ring-shaped seal member 105. Plate 10
2B, a projection 102b is formed, and the projection 102b is provided on the floating mount member 1 with respect to the case member 104B.
Attached hermetically via 06. This projection 102b
This defines the mounting position of the filter 101 and the mounting direction around the axis.

[0005]

However, the air cleaner shown in FIG. 9 has a large number of parts as a whole, and the plates 102A and 102B and the holder 103 must be replaced at the same time when the filter 101 is replaced. There is a problem that the number of parts is large. In addition, the filter 101 and the plates 102A and 102B are bonded with the adhesive 10
Since they are directly joined via 1a, the materials of the plates 102A and 102B are limited in terms of adhesiveness, and a pre-mer treatment or the like is required as a pretreatment for adhesion.

Further, since the rotation of the filter 101 in the direction around the axis is prohibited by the protrusion 102b, when the replacement part is mounted on the case member 104B, the direction of the replacement part must be matched with the protrusion 102b. Since the mounting / removing direction of the replacement element is also defined in one direction by the protrusion 102b, the replacement operation becomes complicated. In addition, the seal member 105 and the floating mount member 106 must be interposed between the replacement portion and the case 104, and the operation is complicated in this point as well.

Further, the filter 101 is a plate 1
It is supported so as to be sandwiched in case 104 via 02A and 102B. For this reason, when the fixed position and orientation of the replacement portion are inappropriate or when vibration is applied to the air cleaner, there is a problem that a force in the compression direction, the tension direction, or the torsion direction is easily applied to the filter 101.

An object of the present invention is to provide an air cleaner which has a small number of parts, can be easily replaced, and does not apply an unintended force to the filter.

[0009]

According to a first aspect of the present invention, there is provided a case member (4) provided with a cylindrical filter (1) and formed with an outer peripheral side ventilation port communicating with an outer peripheral space of the filter (1). And a support member (2) for supporting the filter (1) in a filter support structure removably housed with respect to (1).
And a fixing member (3) that engages with the support member (2) to removably fix the filter (1) to the support member (2), wherein the support member (2) includes the filter (1). )
An end supporting portion (25b) for supporting one end of the filter, and inner peripheral supporting portions (21, 22) provided along the inner peripheral surface of the filter (1) and supporting the filter (1) from the inner peripheral surface side. An inner peripheral side vent (24) communicating with the inner space (23) of the filter (1) from one end side of the filter (1), and a filter provided in a continuous manner around the inner peripheral side vent (24); The case part (2) which constitutes a part of the case covering the outer space of (1)
5) and a case member (4) provided on the case portion (25).
And a fitting part (25a) that fits into the support member (3), and the fixing member (3) supports the other end of the filter (1) when engaged with the support member (2). The above object is achieved.

According to the present invention, since the case (25) is formed integrally with the holder (2), the number of parts can be reduced. In addition, the holder (2) has an inner peripheral supporting portion (2).
1, 2) and an end support portion (25b) for supporting one end of the filter (1) are integrally formed, and the other end of the filter (1) is supported by the fixing member (3). Therefore, there is no possibility that a force is accidentally applied between both ends of the filter (1). Furthermore, a case part (25)
In addition, since a fitting portion (25a) to be fitted to the case member (4) is provided, complicated positioning is not required at the time of mounting the filter (1). Work becomes easier.

According to a second aspect of the present invention, in the filter support structure according to the first aspect, the fixing member (3) and the supporting member (2) are engaged with the claw (35) and the claw (35). An engaging portion (29, 35) having a groove (29) is formed, and the fixing member (3) is detachably fixed to the support member (2) by the engaging portion (29, 35).

According to the present invention, the engaging portion (2) having the claw (35) and the groove (29) engaged with the claw (35).
Since the support member (2) and the fixing member (3) are fixed via the components (9, 35), it is not necessary to fix the filter (1) by bonding, and it is necessary to consider the adhesiveness of the material to be bonded. There is no. Therefore, the material of the support member (2) and the fixing member (3) can be selected from a wide range.
In addition, erroneous assembly can be prevented, and rotation of the fixing member (3) due to vibration or the like can be prevented.

According to a third aspect of the present invention, in the filter supporting structure according to the second aspect, the fixing member (3) is engaged with the inner surface of the case to inhibit rotation of the fixing member (3). A part (37) is formed.

According to the present invention, since the fixing member (3) is formed with the rotation prohibiting portion (37) which engages with the inner surface of the case and prohibits the rotation of the fixing member (3), the fixing member (3) is fixed to the case. An erroneous assembly in which the direction of the member (3) is erroneous can be prevented, and a double erroneous assembly can be prevented in combination with the assembly of the support member (2) and the fixing member (3).

According to a fourth aspect of the present invention, in the filter supporting structure according to the first aspect, the fixing member (3) is formed with a screw portion (32) to be screwed to the supporting member (2). The filter (1) is fixed by attaching the fixing member (3) to the support member (2) via the screw portion (32).

According to the present invention, since the filter (1) is fixed by attaching the fixing member (3) to the support member (2) via the screw portion (32), the filter (1) is fixed by bonding. There is no need to consider the adhesiveness of the material to be bonded. Therefore, the material of the support member (2) and the fixing member (3) can be selected from a wide range.

According to a fifth aspect of the present invention, in the filter support structure according to any one of the first to fourth aspects, the supporting member (2) is in contact with the fixing member (3) and the fixing member (3).
Is formed at a predetermined fixed position.

According to the present invention, the fixing member (3) can be stopped at a predetermined fixing position by the seating surface (27) formed on the support member (2).
In addition, the compression force applied to the filter (1) can be optimized to prevent breakage of the filter (1), and at the same time, secure sealing at the end of the filter (1).

According to a sixth aspect of the present invention, in the filter supporting structure according to any one of the first to fifth aspects, an end supporting portion (25b) and a fixing member (25) are provided at both ends of the filter (1). The sealing material (1a) which comes into contact with 3) is attached.

According to the present invention, the filter (1) is provided at both ends thereof with the sealing material (1a) abutting against the end support (25b) and the fixing member (3). Sealing at both ends can be ensured.

According to a seventh aspect of the present invention, in the filter support structure according to any one of the first to sixth aspects, the support member (2) is provided on the inner side from the inner peripheral surface of the filter (1). A rib (21) as a protruding inner peripheral support portion extends in the axial direction of the filter (1).

According to the present invention, the rib (21) as an inner peripheral supporting portion protruding inward from the inner peripheral surface of the filter (1) extends in the axial direction of the filter (1). The strength of the inner peripheral support member can be improved.
Further, the flow of air inside the filter (1) can be appropriately controlled according to the shape of the rib (21).

According to an eighth aspect of the present invention, in the filter support structure according to any one of the first to seventh aspects, the support member (2) has a structure in which the support member (2) extends inward from the inner peripheral surface of the filter (1). A protruding rib (22) as an inner peripheral supporting portion extends in the circumferential direction of the filter (1).

According to the present invention, since the rib (22) as an inner peripheral support protruding inward from the inner peripheral surface of the filter (1) extends in the circumferential direction of the filter (1), The strength of the inner peripheral support member can be improved.

According to the ninth aspect of the present invention, in the air cleaner including the filter support structure and the case member (4) for detachably storing the filter support structure, the filter support structure includes a cylindrical filter ( 1), a support member (2) that supports the filter (1), and a fixing member (3) that engages with the support member (2) to removably fix the filter (1) to the support member (2). The support member (2) includes an end support portion (25b) that supports one end of the filter (1), and the filter (1) provided along an inner peripheral surface of the filter (1). An inner-peripheral supporting portion (21, 22) supporting from the inner peripheral surface side;
4), a case portion (25) which is provided continuously around the inner peripheral side ventilation opening (24), and forms a part of a case which covers the outer space of the filter (1); and a case portion (25). And a fitting portion (25a) fitted to the case member (4), and the fixing member (3) is formed integrally with the supporting member (2).
When the other end of the filter (1) is supported, the case member (4) is formed with an outer peripheral side vent (4b) communicating with the outer peripheral space of the filter (1).
The above object is achieved.

According to the present invention, since the case (25) is formed integrally with the holder (2), the number of parts can be reduced. In addition, the holder (2) has an inner peripheral supporting portion (2).
1, 2) and an end support portion (25b) for supporting one end of the filter (1) are integrally formed, and the other end of the filter (1) is supported by the fixing member (3). Therefore, there is no possibility that a force is accidentally applied between both ends of the filter (1). Furthermore, a case part (25)
In addition, since a fitting portion (25a) to be fitted to the case member (4) is provided, complicated positioning is not required at the time of mounting the filter (1). Work becomes easier.

According to a tenth aspect of the present invention, in the air cleaner according to the ninth aspect, the case member (4) comes into contact with the fixed member (3) of the stored filter support structure and the fixed member (3). Contact part (4d, 41) to prevent loosening
Is provided.

According to the present invention, the abutment portions (4d, 41) provided on the case member (4) prevent the fixed member (3) of the stored filter support structure from being loosened. The sealing at both ends of 1) can be reliably ensured.

Incidentally, to facilitate understanding of the present invention, reference numerals in the accompanying drawings are appended in parentheses, but the present invention is not limited to the illustrated embodiment.

[0030]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of an air cleaner according to the present invention will be described below with reference to FIGS.

FIG. 1 is a plan view showing an air cleaner of the present embodiment, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is an exploded plan view showing a state in which a case member and a replacement element are separated from each other. FIG. 4 is an exploded plan view showing a state where the filter is separated from the holder.

As shown in FIG. 1, the air cleaner according to the present embodiment has a cylindrical (frustoconical) filter 1 and a holder as a support member inserted along the inner peripheral surface of the filter 1 and supporting the filter 1. 2, a plate 3 serving as a fixing member screwed to the holder 2, and a case member 4 fitted to the holder 2 and covering the outer peripheral space of the filter 1 together with the holder 2.

The holder 2 is manufactured by integrally molding a resin. As shown in FIG. 1, the holder 2 has a longitudinal rib 21 protruding inward from the inner peripheral surface of the filter 1 and extending along the axial direction of the filter 1, and an inner side extending from the inner peripheral surface of the filter 1. , And a horizontal rib 22 extending along the circumferential direction of the filter 1 is formed. The vertical ribs 21 and the horizontal ribs 22 ensure sufficient strength for the holder 2 to support the filter 1. The inner peripheral surface of the filter 1 is exposed to the inner space 23 via a gap between the vertical rib 21 and the horizontal rib 22. By changing the shape of the vertical rib 21, the flow of air on the inner peripheral side of the filter 1 can be arbitrarily adjusted. Also, depending on the shape of the filter 1, it may be difficult to form the horizontal ribs 22, but in this case, the horizontal ribs 22 need not be formed. Further, even when the formation is not difficult or the formation is not impossible, the lateral rib 22 may be omitted.

An exhaust port 24 formed in the holder 2 communicates with the inner space 23. A case part 25 that forms a part of a case that houses the filter 1 is provided around the exhaust port 24.
Are formed. The case portion 25 is formed with a fitting portion 25a fitted to the case portion 4 and an end support portion 25b for supporting one end of the filter 1.

As shown in FIGS. 1 and 2, the plate 3
Has an end support 3 for supporting the other end of the filter 1.
1, a female screw part 32 to be screwed with the holder 2, and a rib 33 are formed. As shown in FIG. 1, seal members 1a are integrally attached to both ends of the filter 1 with respect to the filter 1, and both end portions of the filter 1 are end support portions via the seal members 1a. 25b and the end support 31. As the sealing material 1a, for example, urethane foam bonded to the end of the filter 1 may be used, or a material obtained by bonding rubber, nonwoven fabric, or the like to the end of the filter 1 via an adhesive may be used. The sealing material may be attached by welding or insert molding. The holder 2 has a seat surface 27 against which the plate 3 is abutted when the plate 3 is screwed into the holder 2.
By screwing the plate 3 until the plate 3 comes into contact with the seat surface 27, the filter 1 can be sandwiched and supported by the end support portions 25b and the end support portions 31 with appropriate force from both ends.

The case member 4 is formed with a fitting portion 4a that fits tightly with the fitting portion 25a of the case portion 25, and an intake port 4b that communicates with the outer peripheral space of the filter 1. As shown in FIG. 1, by joining the holder 2 and the case member 4 via the fitting part 25 a and the fitting part 4 a, a case that covers the filter 1 with the case part 25 and the case member 4 is configured.

Hereinafter, the replacement operation of the filter 1 will be described with reference to FIGS. First, as shown in FIG. 1, the fitting of the fitting portion 25a and the fitting portion 4a is released, and the holder 2 and the case member 4 are separated from each other. The O-ring 25c fitted in the fitting portion 25a is for ensuring airtightness of the fitting portion. Next, as shown in FIG. 4, when the plate 3 is unscrewed and removed from the holder 2,
The filter 1 can be separated from the holder 2. The replacement work of the filter 1 is completed by replacing the old filter 1 with a new one and assembling it in a procedure reverse to the disassembly procedure.

In the present embodiment, a part of the case (case portion 25) is integrally formed by the holder 2, so that the number of parts can be reduced. Further, since the filter 1 is sandwiched and fixed by screwing the holder 2 and the plate 3 together, unlike the case where the filter is fixed with an adhesive, the adhesiveness of the holder 2 and the plate 3 is taken into consideration. In this regard, there is no restriction on the material, and no pretreatment for adhesion (primer treatment, etc.) is required.

By fitting the holder 2 on which the filter 1 is mounted to the case member 4, the mounting operation of the filter 1 is completed, so that complicated positioning is not required when mounting the filter 1. Further, since the direction in which the filter 1 is removed is not specified, the removal of the filter 1 is easy. Further, since the O-ring 25c is fitted in the fitting portion 25a, it is not necessary to use a special member for sealing such as the seal member 105 in FIG.

Further, in this embodiment, since only the filter 1 needs to be replaced, the burden of disposal can be reduced.

FIG. 5 shows how a compressive force is applied to the filter 1 from both ends, and FIG. 6 shows the relationship between the applied compressive force (pressing strength) and the amount of deformation (displacement) of the filter 1. . As shown in FIG. 6, it can be seen that the repulsive force (pressing force) of the filter 1 increases with an increase in the displacement, but when the deformation of the filter 1 increases to some extent, the repulsive force of the filter 1 tends to decrease. When the filter 1 is supported from both ends and the pressing force is in a region shown by oblique lines in FIG. 6, an excessive pressing force is not applied to the filter 1 and a sufficient sealing property is provided at the end of the filter 1. Can be secured.

In the present embodiment, when the plate 3 is screwed into the holder 2 until it comes into contact with the seat surface 27,
Since it is configured to have an appropriate pressing strength, it is possible to always obtain an appropriate pressing strength in the replacement work.
Further, since the holder 2 is coupled to the case member 4 only at one end of the filter 1, there is no possibility that an excessive force is applied between both ends of the filter 1 when the holder 2 is attached. Further, since the vertical ribs 21 and the horizontal ribs 22 impart sufficient strength to the holder 2, the holder 2 hardly deforms even when a force is applied. Therefore, even when acceleration (G) due to vibration is applied, only a force based on the weight of the filter 1 itself is applied to the filter 1, and the force is small.

FIGS. 7A and 7B show the plate 3
FIG. 7 is a cross-sectional view showing a configuration in a case where a contact portion for preventing loosening is provided in a case member 4. FIG. 7A shows a configuration in which a projecting portion 4 d projecting toward the inside of the case is formed on the case member 4, and this is brought into contact with the plate 3. FIG. 7B shows a configuration in which a contact member 41 made of resin, rubber, or the like is fitted into an opening formed in the case member 4, and this is brought into contact with the plate 3.

By providing such a contact portion as needed, the loosening of the plate 3 can be reliably prevented. Although not shown, the ribs 33 of the plate 3 are not shown.
And a groove or a projection for inhibiting rotation of the plate 3 is formed integrally with the case member 4 or by using a member different from the case member 4, thereby preventing the plate 3 from being loosened. You may.

FIG. 8A shows a configuration in which a fitting type plate is used instead of the screw type plate.
FIG. 9B is a view of the plate as seen from the direction of the line BB in FIG. As shown in FIGS. 8A and 8B,
A projection 28 formed on the holder 2A is provided on the plate 3A.
And a projection (claw) 35 projecting inward from the inner peripheral surface of the recess 34. A groove 29 for accommodating the projection 35 is formed on the outer peripheral surface of the projection 28 of the holder 2A. As shown in FIG. 8B, two protrusions 35 are formed at target positions on the plate 3A,
Are formed symmetrically in accordance with the position of each projection 35. As shown by the arrow in FIG. 8B, the plate 3A is inserted into the holder 2A so that the projection 35 is aligned with the position of the groove 29, and the plate 3A is brought into contact with the seating surface 27A. Can be attached to the holder 2A. As a result, the end support 36 formed on the plate 3A is pressed against the end of the filter 1, and the filter 1 can be fixed.

As described above, the plate 3A is attached to the holder 2A.
In the case where the plate 3A is fixed so as to be fitted in the plate 3, it is possible to prevent erroneous assembly and prevent the plate 3A from rotating due to vibration or the like. The seating surface 27A functions to set the pressing strength of the filter 1 to an appropriate value in the replacement work, similarly to the seating surface 27.

Although not shown, grooves or projections which engage with the ribs 37 of the plate 3A and prohibit the rotation of the plate 3A are integrated with the case member 4, or a member different from the case member 4 is used. With such a configuration, it is possible to prevent the plate 3A from becoming loose. In this case,
There is no danger that the mounting direction of the plate 3A with respect to the case member 4 will be erroneous, and in combination with the mounting of the plate 3A and the holder 2A, erroneous mounting is prevented in a double sense.

The correspondence between the grooves and the claws formed in the holder and the plate may be reversed, and the claws may be formed in the holder and the grooves may be formed in the plate.

In FIG. 8, reference numeral 1b denotes an elastic member such as a nonwoven fabric. If the seal between the filter 1 and the end support 36 becomes insufficient, the elastic member 1b may be sandwiched together with the seal member 1a.

In the above embodiment, an air cleaner using a filter having a truncated cone shape has been described. However, the present invention is similarly applied to a filter having a cylindrical shape.

[0051]

According to the first aspect of the present invention, since the case (25) is formed integrally with the holder (2), the number of parts can be reduced. In addition, the inner peripheral support portions (21, 22) and the end support portion (25b) for supporting one end of the filter (1) are integrally formed on the holder (2), and the filter ( Since the other end of the filter (1) is supported, there is no possibility that a force is accidentally applied between both ends of the filter (1). Furthermore, since the fitting part (25a) fitted to the case member (4) is provided in the case part (25), complicated positioning is not required at the time of mounting the filter (1). Since the direction of removal is not limited, the removal operation is simplified.

According to the second aspect of the present invention, the nail (3
Since the supporting member (2) and the fixing member (3) are fixed via the engaging portions (29, 35) having the groove (29) engaging with the claw (35), the supporting member (2) is incorrectly assembled. And rotation of the fixing member (3) caused by vibration or the like can be prevented.

According to the third aspect of the invention, the fixing member (3) is formed with the rotation prohibiting portion (37) which is engaged with the inner surface of the case to prohibit the rotation of the fixing member (3). Therefore, it is possible to prevent an erroneous assembly in which the direction of the fixing member (3) with respect to the case is erroneously performed. it can.

According to the fourth aspect of the present invention, the filter (1) is fixed by attaching the fixing member (3) to the support member (2) via the screw portion (32). Does not need to be fixed by bonding, and there is no need to consider the adhesiveness of the material to be bonded. Therefore,
The material of the support member (2) and the fixing member (3) can be selected from a wide range.

According to the fifth aspect of the present invention, the fixing member (3) can be stopped at a predetermined fixing position by the seating surface (27) formed on the supporting member (2), so that the filter (1) can be stopped. ) Is optimized to prevent the filter (1) from being damaged, and at the same time to prevent the filter (1) from being damaged.
Reliable sealing at the end can be ensured.

According to the sixth aspect of the present invention, the seal member (1a) which comes into contact with the end support portion (25b) and the fixing member (3) is attached to both ends of the filter (1). The sealing at both ends of the filter (1) can be ensured.

According to the seventh aspect of the present invention, the rib (21) serving as an inner peripheral support protruding inward from the inner peripheral surface of the filter (1) extends in the axial direction of the filter (1). Since it is provided, the strength of the inner peripheral support member can be improved. Further, the flow of air inside the filter (1) can be appropriately controlled according to the shape of the rib (21).

According to the eighth aspect of the present invention, the rib (22) as an inner peripheral supporting portion projecting inward from the inner peripheral surface of the filter (1) extends in the circumferential direction of the filter (1). As a result, the strength of the inner peripheral support member can be improved.

According to the ninth aspect of the present invention, since the case (25) is formed integrally with the holder (2), the number of parts can be reduced. In addition, the inner peripheral support portions (21, 22) and the end support portion (25b) for supporting one end of the filter (1) are integrally formed on the holder (2), and the filter ( Since the other end of the filter (1) is supported, there is no possibility that a force is accidentally applied between both ends of the filter (1). Furthermore, since the fitting part (25a) fitted to the case member (4) is provided in the case part (25), complicated positioning is not required at the time of mounting the filter (1). Since the direction of removal is not limited, the removal operation is simplified.

According to the tenth aspect, the contact members (4d, 41) provided on the case member (4) prevent the stored fixing member (3) of the filter support structure from being loosened. Therefore, sealing at both ends of the filter (1) can be reliably ensured.

[Brief description of the drawings]

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

FIG. 2 is a partially enlarged view of FIG. 1 showing the vicinity of a plate.

FIG. 3 is an exploded sectional view showing a state where a holder and a case member are disassembled.

FIG. 4 is an exploded sectional view showing a state where a holder and a filter are separated.

FIG. 5 is a diagram illustrating a pressing strength applied to a filter.

FIG. 6 is a diagram showing the relationship between the displacement of the filter and the pressing strength applied to the filter.

7A and 7B are diagrams showing a contact portion for preventing the plate from being loosened, wherein FIG. 7A is a cross-sectional view showing a projecting portion formed on a case member, and FIG. 7B is a diagram showing a contact member fitted into the case member; FIG.

8A and 8B are diagrams showing another embodiment, in which FIG. 8A is a cross-sectional view showing another embodiment, and FIG. 8B is a diagram showing a plate viewed from the direction of line BB in FIG.

FIG. 9 is a sectional view showing a conventional air cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Filter 1a Seal member 2 Holder (support member) 3 Plate (fixing member) 4 Case member 4a Fitting part 4b Intake port (outer side ventilation port) 4c Projection part (contact part) 21 Vertical rib 22 Horizontal rib 23 Inner space 24 Exhaust port (inner side ventilation port) 25 Case part 25a Fitting part 25b End support part 27 Seat surface 27A Seat surface 29 Groove 32 Female screw part (screw part) 35 Projection (claw) 41 Contact member (contact part) )

Claims (10)

[Claims] 1. A filter supporting structure comprising a cylindrical filter, wherein the filter supporting structure is detachably accommodated in a case member having an outer peripheral side ventilation port communicating with an outer peripheral space of the filter. A member, and a fixing member that engages with the support member to removably fix the filter to the support member, wherein the support member supports an end of the filter; An inner peripheral support portion provided along the inner peripheral surface of the filter and supporting the filter from the inner peripheral surface side; an inner peripheral side vent port communicating with the inner space of the filter from the one end side of the filter; A case portion that is provided continuously around the inner peripheral side ventilation port and forms a part of a case that covers an outer space of the filter; and a fitting portion provided in the case portion and fitted to the case member. Filter support structure will be formed integrally, the fixing member, characterized in that to support the other end of the filter when engaged with the support member. 2. The fixing member and the supporting member,
An engaging portion having a claw and a groove engaged with the claw is formed,
The fixing member is detachably fixed to the support member by the engagement portion.
3. The filter support structure according to 1. 3. The filter support structure according to claim 2, wherein the fixing member has a rotation prohibiting portion that is engaged with an inner surface of the case to prohibit rotation of the fixing member. 4. The fixing member has a threaded portion screwed to the support member, and fixing the filter by attaching the fixed member to the support member via the threaded portion. The filter support structure according to claim 1, wherein: 5. The support member according to claim 1, wherein the support member has a seat surface which abuts on the fixing member and stops the fixing member at a predetermined fixing position.
Item 14. The filter support structure according to Item 5. 6. The filter according to claim 1, wherein a seal member abutting on the end support portion and the fixing member is attached to both ends of the filter. Support structure. 7. The filter according to claim 1, wherein the support member is provided with a rib as the inner peripheral support portion protruding inward from an inner peripheral surface of the filter and extending in an axial direction of the filter. The filter support structure according to claim 1. 8. The filter according to claim 1, wherein the support member is provided with a rib as the inner peripheral support portion protruding inward from an inner peripheral surface of the filter and extending in a circumferential direction of the filter. Item 8. The filter support structure according to any one of Items 1 to 7. 9. An air cleaner comprising: a filter support structure; and a case member for detachably storing the filter support structure, wherein: (A) the filter support structure includes a cylindrical filter; and a support for supporting the filter. A member, and a fixing member that engages with the support member to removably fix the filter to the support member, wherein the support member supports an end of the filter; An inner peripheral support portion provided along the inner peripheral surface of the filter and supporting the filter from the inner peripheral surface side; an inner peripheral side vent port communicating with the inner space of the filter from the one end side of the filter; A case portion that is provided continuously around the inner peripheral side ventilation port and forms a part of a case that covers an outer space of the filter; and a case portion provided in the case portion and fitted to the case member. And a fitting portion integrally formed, wherein the fixing member supports the other end of the filter when engaged with the support member, and (B) the case member has an outer peripheral space of the filter. An air cleaner characterized by having an outer peripheral side ventilation opening formed therein for communication. 10. The filter according to claim 9, wherein the case member is provided with a contact portion for contacting the fixed member of the stored filter support structure to prevent the fixed member from being loosened. The air cleaner described in the above.