JP3062869B2 - Clothes dryer filter device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a filter device for a clothes dryer, and more particularly, to a filter device provided at the center of a wall on the exhaust side of a rotary drum for storing clothes, the filter device rotating integrally with the rotary drum. The present invention relates to a filter device comprising a filter cover covered with the filter in order to prevent contact between the filter and clothing.

[0002]

2. Description of the Related Art A filter device of this type has already been disclosed in Japanese Utility Model Laid-Open No. 61-56991.
In this device, as shown in FIGS.
The humid air is exhausted through a disc-shaped filter (2) provided at the center of the back wall of the rotary drum (1) .The rotary drum (1) has a large number of openings (30) (30) inside the filter (2). Become a vent
The filter cover (3) provided with (3b)
It is provided so as to be rotatable relative to (1).

[0003] In this apparatus, clothes accommodated in a rotating drum (1) are stirred by the rotation of the rotating drum (1), and dried by heated air sent into the rotating drum (1). Filters moist air from clothing
The air is exhausted to the outside from an exhaust outlet through an exhaust path such as an exhaust tube by an exhaust fan (not shown) provided on the back surface of (2).

At the time of this discharge, dust such as thread waste and fine fiber waste generated in the rotating drum (1) is collected by the filter (2) and is not discharged to the exhaust path. Therefore, the inconvenience of the dust and the like being clogged in the exhaust path and being discharged to the outside of the dryer is eliminated. When the drying step is repeatedly performed, dust or the like is eventually deposited on the entire surface of the filter (2), and drying is impossible. In such a state, it is necessary to disassemble the filter device and perform cleaning to remove dust and the like accumulated on the filter (2).

In this conventional device, the filter cover (3)
Is provided with a scraper (31) bent in an arc shape so as to contact the surface of the filter (2).
(31) is attached in a state where the inner peripheral side is forward and the outer peripheral side is backward in the direction of relative rotation of the filter cover (3) with respect to the filter (2). Also,
Drive projections (39) (39) are provided on the surface of the filter cover (3). Therefore, the driving projections (39) (39) and the rotating drum
The filter cover (3) is rotated relative to the filter (2) by contact with the clothes in (1), whereby dust and the like accumulated on the filter (2) by the scraper (31) are scraped to the outer peripheral side. Can be As a result, the filter (2) is less likely to be clogged, and the usable time before the filter device needs to be cleaned is lengthened.

[0006] However, the scraper (31) is a filter.
Since the dust and the like (hereinafter referred to as dust aggregate (M)) which have been gathered and accumulated due to constant contact with the ventilation portion of (2) increase, the dust and the like are slid by the scraper (31) to filter ( 2) may be pushed to the back side through the eyes, and if the dust and the like accumulate on the downstream side of the filter (2) in the exhaust path, cleaning them is troublesome.
The filter (2) can be removed from the rotating drum (1) together with the filter cover (2).
This is because it is easy to clean and remove dust and the like trapped in the filter, but dust and the like accumulated in the exhaust path downstream of the filter (2) cannot be easily removed.

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and has been made in consideration of the problem described above. 2) and this filter (2) is covered from the inside of the rotating drum (1), and a large number of openings are provided on the surface facing the filter (2).
(30) A cover provided with a ventilation part (3b) comprising (30), a filter cover (3) provided to be rotatable relative to the rotary drum (1), and a filter cover (3). The filter (2) includes a scraper (31) protruding and substantially slidably in contact with the filter (2). The scraper (31) is collected by the filter (2) by the relative rotation between the filter cover (3) and the filter (2) during the drying operation. Dust and lint are collected by the scraper (31) in the direction of rotation of the clothes dryer, '' the dust collected by the filter (2)
Dust collected by scraping of scraper (31)
When the amount of (M) increases, it is pushed out from the eyes of the filter (2) to the back so that dust and the like do not accumulate in the exhaust path downstream from the filter (2). Is the subject.

[0008]

[Technical Means] The technical means of the present invention for solving the above-mentioned problem is that a filter (2) is provided with a main filter (200) having a ventilation part (2a) in contact with a scraper (31); At regular intervals and scraper the main filter (200).
And an auxiliary filter (7) provided on the opposite side of (31),
The main filter (200) is loosely fitted in a paired state by spline fitting with respect to an annular portion (22a) provided in a shaft insertion portion (22) which is fitted externally to a rotating shaft portion of the rotating drum (1). A cylindrical shaft portion (26), and a flange portion (F ₁ ) extends from the middle of the cylindrical shaft portion (26), and the auxiliary filter (7)
Has an annular mounting plate (72) having a central hole for spline fitting with the cylindrical shaft portion (26).
On one surface of 2), key-shaped engaging projections (74) and (74) respectively engaged with a pair of engaging holes (9) and (9) provided in the flange portion (F ₁ ).
Operation protrusions (75) and (75) are formed at positions opposite to the engagement protrusions (74) and (74) on the opposite surface, and the filter cover (3) is formed in a dish shape. The main filter (200)
And the auxiliary filter (7) are removably housed and mounted in the filter cover (3), and the filter cover (3) is
The rotary drum (1) is mounted on a shaft projecting inward from the center of the rear wall so as to be relatively rotatable and detachable.

[0009]

The above technical means operates as follows. Due to the relative rotation of the filter cover (3) with respect to the filter (2), dust and the like attached to the main filter (200) constituting the filter (2) are accumulated on the front side of the scraper (31) in the relative rotation direction. .

When the accumulation amount of dust and the like is increased and the accumulation pressure of the dust and the like is increased, when the scraper (31) comes into sliding contact, a part of the dust and the like may be pushed out from the eyes of the main filter (200) to the back side. However, there is an auxiliary filter (7) behind the main filter (downstream in the exhaust path) at a certain interval from the main filter (200). Do not move further downstream.

Accordingly, dust and the like generated in the rotating drum (1) are reliably collected by both the main filter (200) and the auxiliary filter (7). When the filter cover (3) is removed from the rotating shaft of the rotary drum (1), the main filter (200) and the auxiliary filter are removed together with the filter cover (3).
Both of (7) are taken out, and these can be separately removed from the filter cover (3).

On the other hand, one surface of the annular mounting plate (72) of the auxiliary filter (7) is engaged with a pair of engagement holes (9) (9) provided in the flange portion (F ₁ ). Key-shaped engaging projection (74)
(74), and the opposite side has this engaging projection (74) (74)
Since the operation protrusions (75) and (75) are formed at positions corresponding to the positions, the engagement protrusions (74) and (74) are engaged with the inner side of the engagement holes (9) and (9) from the outside. When the operation protrusions (75) and (75) are picked and tilted inward, the engagement protrusions (74) and (74) are engaged with the engagement holes (9).
The auxiliary filter (7) can be easily removed from the main filter (200) by removing from the (9).

[Effect] When a large amount of dust or the like is accumulated in front of the scraper (31), the main filter (2) is slid by the scraper (31).
Since dust and the like pushed out to the back side (downstream side) from the eyes of (00) are collected by the auxiliary filter (7), the filter (2) including the main filter (200) and the auxiliary filter (7) is collected.
The disadvantage that a large amount of dust or the like accumulates on the downstream side of the device can be prevented.

Since there is a certain distance between the main filter (200) and the auxiliary filter (7), the sliding pressure of the scraper (31) does not act on the auxiliary filter (7). Therefore, it is possible to prevent the dust and the like collected by the auxiliary filter (7) from being pushed further downstream.

[0014]

Next, an embodiment of the present invention will be described in detail with reference to the drawings. In the first embodiment shown in FIGS. 4 to 6, the ventilation portion (3b) of the filter cover (3) has a large number of spirally-shaped curved bars (33) (3).
3) and one annular bar (34) are formed, and openings (30) (30) are formed between the bars.

Hereinafter, a filter device which is disposed at the center of the rear wall (10) of the rotating drum (1) and has the filter cover (3) will be described in detail. [Back filter (21)] Also in this embodiment, as in the prior art, an annular exhaust port having a large number of through holes formed in the center of a rear wall (10) serving as a rear wall of the rotary drum (1). A back filter (21) is fixed inside the rotating drum (1) of the section (11).

The back filter (21) is a rotary drum.
(1) a shaft insertion portion (22) which is fitted to the rotary shaft portion, and an outer peripheral frame (23) detachably attached to an outer peripheral portion of the exhaust port (11).
And a radial bar (not shown) stretched between them,
The filter sheet (24) is stretched between the shaft insertion portion (22) and the outer peripheral frame (23). Then, the back filter (2
In order to make 1) detachable, a plurality of (four) key-shaped locking pieces 25, 25 protruding from the back of the outer peripheral frame 23 are provided at the exhaust port of the rotary drum 1. The rotary shaft cover (J) is screwed in and fixed to a locking hole (12) provided in the outer peripheral area of the portion (11). Since the entire back filter (21) is made of an elastic synthetic resin, after removing the rotary shaft cover (J), the back filter (21) is peeled off from the back wall (10). (25) is pulled out from the locking hole (12) so that the back filter (21) can be removed.

[Filter (2)] The back filter (21)
Inside the main filter (2) that rotates integrally with the rotating drum (1).
00) and an auxiliary filter (7). As shown in FIGS. 4 and 8, the main filter (200) is moved into a paired state by spline fitting with respect to an annular portion (22a) provided in the shaft insertion portion (22) of the back filter (21). The fitted cylindrical shaft portion (26), the annular wall (27) and the peripheral tongue portion (271) provided on the outer peripheral annular frame, and the flange portion (F ₁ ) and the annular wall (27)
Flange (F ₂ ) protruding inside the filter, and a fixed width annular filter sheet (28) stretched so as to connect these flanges to each other (200 mesh: equivalent to the ventilation part (2a)) As shown in FIG. 9, the main filter (20) is formed by spline fitting (smooth pair) between a plurality of convex portions provided on the outer periphery of the cylindrical shaft portion (26) and a plurality of concave portions of the annular portion (22a).
0) and the rotating drum (1) are integrally rotated.

The auxiliary filter (7) is, as shown in FIGS.
The main filter (2) is attached to the main filter (200).
00), the distance between the filter sheet (70) of the auxiliary filter (7) and the filter sheet (28) of the main filter (200) is set to about 2 mm to 5 mm. ing. When the dust and the like collected by the scraper (31) accumulate and the amount of the dust accumulation (M) increases, the filter sheet is slid by the scraper (31) or by the accumulation pressure of the dust accumulation (M). (28) is the auxiliary filter (7)
Although it is bent or pressed to the side, since there is at least the gap between the filter sheets (28) and (70), the bending or the like causes the filter sheet (28) to There is no contact with the filter sheet (70), which can prevent inconvenience.

The auxiliary filter (7) is provided with a main filter (20
0) is provided with a coarser filter sheet (70) (100 mesh) than the filter sheet (28), and is spline-fitted to the cylindrical shaft portion (26) in the same manner as the annular portion (22a). An annular mounting plate (72) with a central hole and a peripheral annular frame
(73) and the filter sheet (70) is stretched.

An annular mounting plate (72) for the auxiliary filter (7)
On one side of the flange part (F ₁)
The key-shaped engaging projections (74) (7)
4), and the opposite surface matches this engagement protrusion
Operation protrusions (75) and (75) are formed at the positions. This auxiliary file
The filter (7) fits the annular mounting plate (72) to the cylindrical shaft (26).
9, a plurality of notches (72a) in the center hole and
Relative rotation prevention by fitting the cylindrical shaft (26) with the protrusion (26a)
State, and the engagement holes (9) (9) and the engagement protrusions (74) (74)
It is mounted in a retaining state by engaging with This allows
It is integrated with the main filter (200).

The engaging projections (74) and (74) are provided with engaging holes (9).
Are engaged from the outside with the inside side of the. Therefore, when the operation protrusions (75) and (75) are pinched and tilted inward, the engagement protrusions (74) and (74) are disengaged from the engagement holes (9) and (9), and the auxiliary filter (7) becomes the main filter ( 200). [Filter cover (3)] The filter cover (3) is formed in a dish shape as a whole and has a rotating drum
(1) A drive projection (39) projecting inward is provided, and an annular inner wall (35) which fits around the annular wall (27) of the main filter (200) in a loosely fitted state at a peripheral edge thereof, and a back filter ( And an annular outer wall (36) which is loosely fitted into an annular rib (23a) formed on a peripheral portion of an outer peripheral frame (23) of the outer drum (23).
(1) An engaging cylinder part that is loosely fitted to the rotating shaft lid (J) so that it does not come off.
(4) is provided. The engaging cylinder portion (4) has a slit (41) partially open in the axial direction as shown in the rear view of FIG.
(41) is provided and configured to be elastically deformable in the radial direction,
Projection partially projected from the inner peripheral surface of the tip of the engagement cylinder (4)
(42) is loosely fitted in the annular groove (J ₁ ) formed in the rotary shaft lid (J) and is in a state of being prevented from being pulled out in the axial direction, but when forcibly pulled out with a constant force, the filter cover ( 3) is designed to be removable from the rotating shaft cover (J).

The engagement projections (4a) (4a) provided at two places on the outer periphery of the engagement cylinder (4) are connected to the cylinder shaft (26) of the main filter (200).
An engaging claw (26b) provided substantially over the entire inner periphery of the end portion on the side of the rotating drum (1) engages in the axial direction, and the main filter (200)
Are in a state where they cannot be removed from the engagement cylinder (4). on the other hand,
As described above, the auxiliary filter (7) is connected to the main filter (2).
00) is engaged in the retaining state. Therefore, both the main filter (200) and the auxiliary filter (7) are detachably mounted on the filter cover (3) in a state where they cannot be removed, and the filter cover is removed from the rotating drum (1).
Remove (3) to remove main filter (200) and auxiliary filter.
(7) can be integrally removed together with the filter cover (3). And they can be disassembled separately.

The filter cover (3) is in a loosely fitted state at a fitting portion of the rotating shaft cover (J), the main filter (200) and the back filter (21).
It can rotate relative to the main filter (200) that rotates integrally with (1). Further, on a part of the outer wall (36), on the outer periphery of a portion where the scraper (31) described later is disposed, as shown in FIGS. Is provided,
The main filter (200) engages with a peripheral edge (271) located further outside the annular wall (27). That is, the peripheral portion extends outward from the outer wall (36) of the filter cover (3) (the back filter (21)
Side) is prevented by the engaging tongue piece (361). Note that one end of the engaging tongue piece (361) is located at a position away from the scraper (31) in the rotational direction forward, and at least a certain distance from the outermost end of the scraper (31). The engaging tongue piece (361) is disposed forward.

As shown in FIG. 5, among the flat portions of the filter cover (3), the annular band portion facing the ventilation portion (2a) of the main filter (200) has a large number of openings (30), (30). And an arc-shaped ventilation part (3b) formed through it, and a non-opening part (3a) sandwiched between both ends of the ventilation part. The area of this non-opening (3a) is
It is desirable to set such that the passage resistance of the exhaust does not increase, and the passage resistance from the ventilation part (3b) is
The area of the non-opening (3a) is set so as to be equal to or smaller than the passage resistance of 8).

The ventilation part (3b) has a central disk part (37) provided with the engaging cylinder part (4) and an outer peripheral part (38) provided with the inner wall (35) and the outer wall (36). And a number of spiral curved bars (33), (33) provided between them, and an annular bar (34) connecting slightly outside the middle of these bars. A scraper (31) is formed to project from the back surface of one curved bar (33) located at the back of the non-opening (3a) and at the rear end of the filter cover (3) relative to the main filter (200) in the direction of rotation. ing. The rear edge of the scraper (31) has a configuration in which small projections are continuous at a predetermined pitch, and the projection continuous portion (31a) substantially contacts the filter sheet (28) of the main filter (200). When the dust and the like collected on the filter sheet (70) are stacked in a certain amount, the small projections catch the dust and the like. When this operation is continued, the amount of dust and the like caught on the projections increases, and finally, the dust and the like attract the dust. Therefore, even if there is a certain gap between the projection continuous portion (31a) and the filter sheet (28), the scraper (31) surely scrapes dust and the like without damaging the filter sheet (28). Can be done.

The inner and outer ends of the curved bar (33) are circumferentially shifted from each other, and the two ends and the filter cover (3) are shifted from each other.
The angle between the line connecting the center of the filter and the filter cover (3) is about 30 degrees. In this embodiment, the relative rotation direction of the filter cover (3) is determined by the rotation direction of the rotating drum (1). Determined by the relationship with the direction. That is, when the clothes fall, a relative rotational force is applied by contact between the clothes and the drive projection (39), and the filter cover (3) is configured to rotate clockwise in FIG. In this relative rotation direction, the inner peripheral side of the curved bar (33) is forward of the outer peripheral side.

Each of the curved bars (33) is provided with a filter cover.
(3) is a bar of constant width protruding to the back surface side, and the annular bar (34) is formed at the inner end of the rotating drum (1) of these curved bars (33), (33). In the case of this embodiment, dust and the like adhere to the surface of the filter sheet (28) of the main filter (200) during the drying operation. The filter cover (3) is relatively rotated clockwise in FIG.
Dust and the like adhering to the surface are collected by the scraper (31). The dust and the like collected in this way are shown in FIG.
As shown in the figure, a dust accumulation body (M) is formed by being accumulated at the front part of the scraper (31) in the relative rotation direction, and as shown in FIG. 30-40
When the speed of the scraper (31) is increased due to a correlation between the rotational force of the intermittently rotating scraper (31) and the inertia force of the dust stack (M), the dust stack (M ) Is moved to the outer peripheral side.

In this embodiment, the filter cover (3) is located at a position off the outer peripheral ends of the scraper (31) and the curved bar (33).
Since an annular lint housing portion (3c) is formed between the outer peripheral portion (38) and the flange portion (F ₂ ), a part of the dust accumulation body (M) moved to the outer peripheral side is shown in FIG. As shown in (b), the lint is stored or escaped on the lint storage section (3c) side. When the amount of the dust accumulation (M) is increased to a predetermined amount, each time the intermittent rotation of the filter cover (3) is increased, the above operation is performed, and a part of the dust accumulation (M) is moved to the outer peripheral side. And is sequentially stored or escaped in the lint storage section (3c). Normally, about 60% of the filter sheet (28) of the main filter (200) is covered with dust and the like, and it is necessary to clean the filter device to remove the dust and the like. Then, the lint housing part (3c) is filled with dust and the like, and the dust accumulation body on the front side of the scraper (31) is
Continuous use is possible to such an extent that the amount of (M) reaches about 60% of the filter sheet (28). Therefore, it can be used continuously for a much longer time than those without a scraper.

In particular, when the amount of the dust aggregate (M) increases, dust and the like partially pass through the main filter (20) due to the sliding contact of the scraper (31).
The dust is pushed out to the back side through the eye of 0), but does not move further downstream of the auxiliary filter because the dust and the like are collected by the auxiliary filter (7). When dust and the like are scraped by the scraper, the dust and the like may be pushed between the scraper (31) and the filter sheet (28). In this case, the filter sheet (28) is Side), the dust and the like thus pushed out are also collected by the auxiliary filter (7).

The coarseness of the auxiliary filter (7) is coarser than that of the main filter (200).
The provision of (7) can prevent an increase in exhaust passage resistance. Naturally, the ventilation part of the auxiliary filter (7)
It is needless to say that the mesh is set to have such a roughness that the dust and the like pushed out from the main filter (200) can be collected as described above.

In this embodiment, the projecting width of the curved beam 33 to the rear side is set to be constant along the longitudinal direction, and
The distance from the back of (34) to the surface of the filter sheet (28) is set to about 1/3. [Embodiment 2] This embodiment is different from Embodiment 1 only in the configuration of the scraper (31) and the ventilation part (3b) in the filter cover (3). 1 is configured exactly the same.

As shown in FIGS. 10 and 11, the ventilation part (3b) is provided with four scrapers (31) and (31) and reinforcing bars connected to the inner edge of the scraper (31) inside the rotating drum. The scraper (31) is composed of a plurality of annular bars (34) and (34),
It is formed in a spiral shape over a range of about 1/4 circumference in the circumferential direction of the ventilation part (3b). In this device, the sections surrounded by the scrapers (31) and (31) and the annular bars (34) and (34) become openings (30) and (30), and a fixed amount is provided on the front side in the relative rotation direction of each of the scrapers (31). The range is a non-opening portion (3a) that is a closing piece (311) that partially closes the opening (30). The area of the non-opening (3a) is set to the same value as in the above embodiment.

In this embodiment, the filter cover (3) is relatively rotated by contact with the garment in the same manner as in the above embodiment (1), so that the back of the ventilation part (3b) and the filter sheet (28) are separated. Dust and the like are accumulated in the front part in the relative rotation direction of the scraper (31). Then, the dust accumulation body (M) is moved to the outer peripheral side by the same operation as that of the first embodiment, but the annular bars (34) and (34) are located on the rear side of the ventilation part (3b). Since they do not protrude, these annular bars (34) (34) do not resist movement of the dust stack (M). Therefore, the dust accumulation body (M) accumulated forward in the rotation direction of the scrapers (31) and (31) is moved to the outer peripheral side more smoothly than in the first embodiment. Further, even if the amount of the dust accumulation body (M) is increased,
(1) The backflow (return) into the inside is prevented by the closing piece (311).

[Others] In this embodiment, the relative rotation direction of the filter cover (3) with respect to the rotating drum (1) is clockwise in FIG. 5 in relation to the rotating direction of the rotating drum (1). However, in order to ensure the relative rotation to one side, an angled projection (5) as shown in FIG. 12 may be formed on the outer peripheral surface of the filter cover (3) as the driving projection (39). . In the angled projection (5), the surface in the relative rotation direction of the filter cover (3) is an inclined surface (51), and the other surface is a vertical surface (52). Therefore, in this case, when the clothes in the rotating drum (1) and the filter cover (3) move relative to each other, FIG.
When the clothes move clockwise in, this makes it easy for the filter cover (3) to rotate clockwise,
When moving in the reverse direction, almost no rotational force is applied. Therefore, the rotating drum (1) of the filter cover (3)
And relative rotation to one side with respect to the main filter (200) is further ensured. Note that the direction of the relative rotation is
The rotation direction of (1) may be set in the opposite direction, and the number of driving projections (39) may be a sub number (for example, three or four).

In the above embodiment, the filter cover
Although (3) is configured to rotate relative to one side mainly with respect to the main filter (200), the present invention can be applied to a configuration that rotates relative to both directions. In this case, the non-opening portion (3a) may be formed on both sides of the scraper (31) according to the rotation rate. In the case of the first embodiment as well, a reverse rotation corresponding portion corresponding to the reverse rotation
(3a ₁ ).

In the first embodiment, the filter cover
(3) has no opening (3a), but the filter sheet
The whole of the part facing (28) may be a ventilation part (3b) comprising openings (30) and (30), and the scraper (31) may be linear. Also, this scraper (31)
(3) It may be formed radially with respect to.

[Brief description of the drawings]

FIG. 1 is a sectional view of a main part of a conventional example.

FIG. 2 is a front view thereof.

FIG. 3 is an enlarged sectional view of a main part.

FIG. 4 is a sectional view of a main part of an embodiment of the present invention.

FIG. 5 is a front view thereof.

FIG. 6 is a rear view of the filter cover (3).

FIG. 7 is an explanatory view showing a process of moving the dust accumulation body (M).

FIG. 8 is a detailed view of main parts of the filter cover (3), the main filter (200), and the auxiliary filter (7).

FIG. 9 is a rear view thereof.

FIG. 10 is a front view of a filter cover (3) according to a second embodiment.

FIG. 11 is a sectional view taken along line XX of FIG.

FIG. 12 is an explanatory view of another example of the driving projection (39).

[Explanation of symbols]

 (1) ・ ・ ・ Rotating drum (2) ・ ・ ・ Filter (3) ・ ・ ・ Filter cover (31) ・ ・ ・ Scraper (33) ・ ・ ・ Curved bar (36) ・ ・ ・ Outer wall (361) ・ ・Engagement tongue (4) ... engagement cylinder (26) ... cylinder shaft

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-150788 (JP, A) JP-A-60-122598 (JP, A) JP-A-60-68897 (JP, A) JP-A-60-1988 63099 (JP, A) JP-A-60-53195 (JP, A) JP-A-60-48794 (JP, A) JP-A-60-63098 (JP, A) JP-A-62-189099 (JP, A) Japanese Utility Model Showa 62-159894 (JP, U) Japanese Utility Model Showa 61-56991 (JP, U) Japanese Utility Model Showa 64-55897 (JP, U) Japanese Utility Model Showa 62-134595 (JP, U) (58) (Int.Cl. ⁷ , DB name) D06F 5/02

Claims (2)

(57) [Claims] Claims: 1. A rotating drum and a rotating drum.
A filter (2) provided at the exhaust outlet at the center of the rear wall of the rotating drum (1); and a filter (2) covering the inside of the rotating drum (1) and facing the filter (2). A filter cover provided with a ventilation part (3b) comprising a large number of openings (30) and (30), the filter cover being rotatably provided on the rotary drum (1).
(3) and the filter (2) protruding from the filter cover (3).
The filter cover (3) and the filter during the drying operation.
In the filter device of the clothes dryer, the dust and lint collected in the filter (2) by the relative rotation with respect to (2) are collected by the scraper (31) in the forward direction in the rotation direction. ) To the ventilation part (2a) that contacts the scraper (31).
A main filter (200) provided with an auxiliary filter (7) provided on the opposite side of the scraper (31) with respect to the main filter (200) at a predetermined interval from the main filter (200). 200) is a cylindrical shaft loosely fitted in a paired state by a spline fit to an annular portion (22a) provided in a shaft insertion portion (22) externally fitted to the rotary shaft portion of the rotary drum (1). Part (26), and a flange part (F ₁ ) is projected from the middle of the cylindrical shaft part (26). The auxiliary filter (7) is splined with respect to the cylindrical shaft part (26). It has an annular mounting plate (72) having a central hole to be fitted, and one surface of the annular mounting plate (72) has a pair of engaging holes (9) provided in the flange portion (F ₁ ). (9) is provided with key-shaped engaging projections (74) and (74) to be separately engaged, and the operation projections (75) are provided on the opposite surface at positions corresponding to the engaging projections (74) and (74). ) (75)
The filter cover (3) is formed in a dish shape, and the main filter is formed.
(200) and auxiliary filter (7) together with filter cover (3)
A clothes dryer in which the filter cover (3) is removably housed and mounted, and the filter cover (3) is relatively rotatably and removably mounted on a shaft projecting inward from the center of the rear wall of the rotating drum (1). Filter device. 2. The filter device for a clothes dryer according to claim 1, wherein the mesh size of the ventilation portion of the auxiliary filter (7) is set larger than the mesh size of the main filter (200).