JP6570130B2 - Filter cleaning device and clothes dryer - Google Patents

Description

  The present invention relates to a filter cleaning device for removing dust adhering to a filter, and a clothes dryer provided with the filter cleaning device.

  Conventionally, a filter for collecting dust is installed, and a filter cleaning device for removing dust adhering to the filter is known (Patent Document 1).

  The filter cleaning device of Patent Document 1 is provided in an electric vacuum cleaner, and is provided with a removable plastic bag at a predetermined position of the front case of the main body, and in order to accommodate dust in the plastic bag, The first pre-filter is provided integrally with a lid that covers the plastic bag from the rear and is rotatable, and when the lid is opened, the dust of the first pre-filter is accommodated in the plastic bag, and the first Two pre-filters are provided on the inner wall surface of the front case of the main body, and the first pre-filter is in sliding contact with the second pre-filter (see FIG. 7 of Patent Document 1).

JP 54-70651 A

  However, in the filter cleaning device described in Patent Document 1, since the lid and the first pre-filter coupling mechanism interlocked with the movement of the lid are located inside the front case, dust adheres to the coupling mechanism. As a result, there was a possibility of causing a malfunction.

  The present invention solves the above-described conventional problems, and includes a filter cleaning device capable of preventing dust from adhering to the movable mechanism and a filter cleaning device including the compact movable mechanism that is not bulky. An object is to provide a clothes dryer.

  In order to solve the conventional problem, the invention of the filter cleaning device according to claim 1 is characterized in that the filter cleaning device includes a cleaning device main body, a filter body capable of collecting dust from ventilation, a cleaning body, and the filter body. A dust discharge restraining body that can be opened and closed, and a movable mechanism that moves the dust discharge restraining body, and the movable mechanism includes an operation lever, A motion transmitting member that transmits the motion transmitted from the operation lever to the cleaning body, and a pressing portion that is formed on the dust discharge suppressing body and presses the operation lever during a closing operation. By pressing, the cleaning body cleans the filter body and simultaneously opens the dust discharge suppression body. When the dust discharge suppression body is closed, the pressing portion moves the operation level. The movable body is installed on the outer surface of the cleaning device main body, the longitudinal direction of the operation lever, and the thickness direction of the motion transmission member. It is characterized in that the direction orthogonal to is installed so as to be parallel to the outer surface of the cleaning device main body.

  In the invention of claim 1, since the movable mechanism is installed on the outer surface of the cleaning device main body, it is possible to prevent dust from adhering to the movable mechanism. Further, since the longitudinal direction of the operation lever and the direction orthogonal to the thickness direction of the motion transmission member are parallel to the outer surface of the cleaning device main body, a compact movable mechanism that is not bulky can be obtained. The filter cleaning device can be reduced in size.

  According to a second aspect of the present invention, in the first aspect of the present invention, the motion transmission member converts the linear motion transmitted from the operation lever into a rotational motion, and the movable mechanism is a member of the cleaning device main body. It is characterized by being installed only on one outer surface. Therefore, when compared with the movable mechanism installed on the two outer surfaces of the cleaning device main body, the thickness can be reduced, the number of parts can be reduced, and the filter cleaning device can be reduced in size.

  According to a third aspect of the present invention, the motion transmission member has a spur gear, the operation lever has a rack gear, and the thickness of the movable mechanism is the spur gear. Or the thickness of the operation lever, whichever is greater, is characterized in that it is the same. Therefore, the movable mechanism can be further reduced in thickness, and the filter cleaning device can be reduced in size.

  According to a fourth aspect of the present invention, there is provided the filter cleaning device according to any one of the first to third aspects, wherein the motion transmitting member acts on the operating lever, and the operating lever acts on the pressing portion of the dust discharge suppressing body. The action part is characterized by being on the same plane. Therefore, the movable mechanism can be further reduced in thickness, and the filter cleaning device can be reduced in size.

  The invention of a filter cleaning device according to claim 5 is characterized in that, in any one of the inventions of claims 1 to 4, the dust discharge suppressing body is rotated and opened / closed and the pressing portion has a curved surface. Yes. Therefore, the force when the dust discharge suppressing body rotates can be directly transmitted to the operation lever.

  According to a sixth aspect of the present invention, there is provided a clothes dryer in which a hot drum generated by a blowing means and a heating means is circulated and supplied through a circulation duct into a rotating drum which is rotatably arranged in a tank and accommodates clothes. The filter cleaning device according to any one of claims 1 to 5 is provided on the exhaust side of the circulation duct from the tank body. Therefore, it is possible to provide a clothes dryer that can prevent dust from adhering to the movable mechanism and can reduce the size of the filter cleaning device by reducing the thickness of the movable mechanism.

  The invention of the filter cleaning device according to claim 1 can prevent dust from adhering to the movable mechanism, can be a compact movable mechanism that is not bulky, and can reduce the size of the filter cleaning device. According to the second to fourth aspects of the present invention, the movable mechanism can be further reduced in thickness, and the filter cleaning device can be reduced in size. The invention according to claim 5 can directly transmit the force when the dust discharge suppressing body rotates to the operation lever.

  In addition, the invention of the clothes dryer according to claim 6 provides a clothes dryer that can prevent dust from adhering to the movable mechanism and can reduce the size of the filter cleaning device by reducing the thickness of the movable mechanism. be able to.

The perspective view which shows the clothes dryer which concerns on this invention Sectional drawing which shows the internal structure of the clothes dryer which concerns on this invention (A) The perspective view which shows the external appearance of the filter cleaning apparatus of 1st Embodiment which concerns on this invention (b) The perspective view which shows the internal structure of the filter cleaning apparatus of 1st Embodiment which concerns on this invention (A)-(c) Explanatory drawing which shows operation | movement of the movable means which comprises the filter cleaning apparatus which concerns on this invention. (A) The view which looked at the filter cleaning apparatus of 1st Embodiment which concerns on this invention from the bottom face direction (b) BB sectional drawing of Fig.5 (a) Explanatory drawing which shows the cleaning operation | movement of the filter cleaning apparatus of 1st Embodiment which concerns on this invention. Explanatory drawing which shows the cleaning operation | movement of the filter cleaning apparatus of 1st Embodiment which concerns on this invention. Explanatory drawing which shows the filter cleaning apparatus of 2nd Embodiment concerning this invention.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

  FIG. 1 is a perspective view showing a clothes dryer according to the present invention, and FIG. 2 is a cross-sectional view showing the internal structure of the clothes dryer. The clothes dryer which concerns on this invention is demonstrated using these figures. The clothes dryer 20 according to the present invention includes a door 20a on the front surface, and is generated by a blowing means (fan) 23 and a heating means 22 in a rotating drum 20b that is rotatably disposed in a tank body 20d and accommodates clothes and the like. The heated air is circulated and supplied through the circulation ducts 21a, 21b, and 21c so that the clothes can be dried, and the filter cleaning device 10 is installed on the exhaust side of the circulation ducts 21a, 21b, and 21c from the tank body 20d. Yes.

  Reference numeral 20c denotes a motor that rotates the rotating drum 20b. The motor 20c rotates the rotating drum 20b during various processes such as a drying process, a washing process, a rinsing process, and a dehydrating process. Moreover, a heat exchanger can be used for the heating means 22 as an example. In addition, various systems, such as a heat pump system and a heater system, can be adopted as a system of the heat exchanger. The clothes dryer 20 is a drum type, but is not limited to this, and various types such as a vertical type can be adopted.

  FIG. 3A is a perspective view showing the external appearance of the filter cleaning device of the first embodiment according to the present invention, and FIG. 3B is a cross-sectional view taken along the line AA in FIG. It is a perspective view which shows the internal structure of the filter cleaning apparatus of 1st Embodiment which concerns. A first embodiment of a filter cleaning device according to the present invention will be described below with reference to FIG.

  The filter cleaning device 10 includes a cleaning device main body 2 and a filter body 1 having a partially arc shape that can collect dust from ventilation. In addition, a rotation shaft 3a, a blade 3b formed with a projection 3g for scraping dust on the side, and a base 3c for rotating the blade 3b are movable along the filter body 1 (reciprocating). And a cleaning body 3 that removes dust adhering to the filter body 1.

  The length from one end 3f of the cleaning body 3 to the other end 3d of the cleaning body is longer than the shortest distance from one end 3f of the cleaning body 3 to the filter surface 12 of the filter body 1. A support portion 3e is formed at the tip of the base 3c so as to contact the rear side of the blade 3b with respect to the traveling direction of the cleaning body 3 in the forward path. The blade 3b is bent or curved backward in the forward direction in the forward path. In contact with the filter body 1. Although the elastomer is used as the material of the blade 3b, the material is not limited to this, and rubber, soft resin, foamed resin, non-woven fabric, etc., or a composite material thereof may be used.

  Further, the blade 3b is configured to be released from the bent or curved state (return to the initial state) by separating from the filter body 1 in the vicinity of the end of the forward path. The filter cleaning device 10 configured as described above is configured so that the length from one end 3f of the cleaning body 3 to the other end 3d of the cleaning body 3 is increased from the one end 3f of the cleaning body 3 to the filter body 1. By making it longer than the shortest distance to the filter surface 12, the blade 3b comes into contact with the filter body 1 while being bent or curved backward in the traveling direction in the forward path, so that the blade 3b is restored near the end of the forward path. By force, dust can be blown off, and dust can be prevented from remaining at the tip of the blade. In addition, since the support portion 3e that contacts the rear side in the traveling direction of the blade 3b in the forward path is formed, the effect that the blade 3b scrapes off dust adhering to the filter body 1 can be enhanced.

  3B, the cleaning device main body 2 includes a recess 4 that accommodates the tip of the blade 3b at the initial position of the cleaning body 3 where the blade 3b is not in sliding contact with the filter body 1. As a result, the blade 3b does not slide on the surface of the dust 9, and the protrusion 3g of the blade 3b abuts against one end of the dust stacked on the filter body and scrapes it up.

  Moreover, the filter cleaning apparatus 10 includes a dust discharge port 5 for discharging dust. The dust discharge port 5 is provided with a dust discharge suppressing body 6 that prevents the dust collected by the filter body 1 from being discharged to the outside and that can be opened and closed. The dust discharge suppression body 6 includes long plates 6a and 6b installed in a lattice shape to prevent the dust from being discharged to the outside. Thereby, when a user removes the filter cleaning apparatus 10 from the clothes dryer 20 and carries it to predetermined | prescribed disposal places, such as a trash box, it can suppress that a dust spills down. Further, the dust discharge suppressing body 6 includes a flap 6d. The flap 6d guides the airflow downward so that dust does not adhere to the rotating shaft 3a of the cleaning body 3.

  Further, the filter cleaning device 10 includes a movable mechanism 7 for moving the dust discharge suppressing body 6 and for connecting the cleaning body 3 to move the cleaning body 3. 2 on one outer surface 2a. Therefore, dust can be prevented from adhering to the movable mechanism 7.

  Next, operation | movement of the movable mechanism 7 which comprises the filter cleaning apparatus 10 which concerns on this invention is demonstrated using Fig.4 (a)-(c). The movable mechanism 7 is formed on the operating lever 7a, the motion transmitting member 7b that transmits the motion transmitted from the operating lever 7a to the cleaning body 3 (see FIG. 3), and the dust discharge suppressing body 6, and is operated when the closing operation is performed. And a pressing portion 6c for pressing the lever 7a. By pressing the operating lever 7a, the cleaning body 3 cleans the filter body 1 (see FIG. 3) and simultaneously opens the dust discharge suppression body 6. When the dust discharge suppressing body 6 is closed, the pressing portion 6c pushes the operation lever 7a to return the cleaning body 3 to the initial position.

  The movable mechanism 7 is installed on one outer surface of the cleaning device main body 2, and the longitudinal direction of the operation lever 7 a and the direction orthogonal to the thickness direction of the motion transmitting member 7 b are on the outer surface of the cleaning device main body 2. It is installed so as to be parallel to 2a. As will be described later, the operation lever 7a can reciprocate in a direction perpendicular to the rotation shaft 3a of the cleaning body 3 (see FIG. 5).

  Specifically, the operation lever 7a has a rack gear, the motion transmission member 7b has a spur gear, and the center of rotation of the spur gear is formed to coincide with the rotation center of the rotation shaft 3a. Has been. The motion transmission member 7b converts the linear motion transmitted from the operation lever 7a into a rotational motion, and the power transmitted to the spur gear rotates the cleaning body 3 through the rotation shaft 3a. As described above, by using a mechanism that rotates the cleaning body 3 using a spur gear as the motion transmission member 7b, a stable cleaning operation can be realized only by forming the movable mechanism 7 only on one outer surface 2a. If the cleaning member 3 is cleaned by a linear motion without using a spur gear for the motion transmission member 7b, it is necessary to support the cleaning member 3 with two outer surfaces sandwiching the cleaning member 3, and the movable mechanism 7 is complicated. End up. When the operating lever 7a is pushed leftward in the drawing from the initial position shown in FIG. 4A, the pressing portion 6c of the dust discharge restraining body 6 that is in contact with the tip of the operating lever 7a is leftward in the drawing. 4 is rotated around the rotation shaft 8 to which one end of the dust discharge suppressing body 6 is connected, and the state shown in FIG.

  Then, from the state shown in FIG. 4 (b), by rotating the dust discharge suppressing body 6 clockwise in the drawing, the pressing portion 6c shown in FIG. 4 (c) comes into contact with the tip of the operation lever 7a. Further, the pressing portion 6c returns to the initial position shown in FIG. 4A by pressing the operation lever 7a. Here, the pressing portion 6c has a curved surface 6e at the tip, and the curved surface 6e comes into contact with the curved surface 7c of the operation lever 7a when the dust discharge suppressing body 6 is opened and closed. Therefore, the force when the dust discharge suppressing body 6 rotates can be directly transmitted to the operation lever 7a. Further, since the pressing portion 6c is provided with a curved surface 6e at the tip, when it comes into contact with the curved surface 7c of the operation lever 7a during the closing operation, the pressing portion 6c comes into contact with the curved surface so that abnormal noise is generated and rattling occurs. Can be suppressed. Preferably, as shown in FIG. 5 (b), when the tip of the pressing portion 6c and the operating portion 7e of the operating lever both have curved surfaces, and the curved surfaces are substantially the same, the above-described effect is further exhibited. Is done.

  Fig.5 (a) is the figure which looked at the filter cleaning apparatus of 1st Embodiment based on this invention from the bottom face direction, FIG.5 (b) is BB sectional drawing of Fig.5 (a). In FIG. 5A, the cover that covers the movable mechanism 7 is omitted. As shown in FIG. 5, the filter cleaning device 10 is configured so that the longitudinal direction of the operation lever 7 a and the direction orthogonal to the thickness direction of the motion transmission member 7 b are parallel to the outer surface 2 a of the cleaning device body 2. is set up. The thickness C of the movable mechanism 7 is the same as the thickness of the spur gear constituting the motion transmitting member 7b or the thickness of the operation lever 7a, which is larger (in the case of FIG. 5, the thickness of the operation lever 7a). . Further, the action portion 7d where the motion transmitting member 7b acts on the operation lever 7a and the action portion 7e where the operation lever 7a acts on the pressing portion 6c of the dust discharge suppressing body 6 are on the same plane as shown in FIG. To be located. Therefore, the movable mechanism 7 can be thinned. Further, in the first embodiment, since the user has a manual mechanism for manually pushing the operation lever 7a, the number of parts is small and there is a risk of failure as compared with the case where power such as a motor is used. Very few. In the clothes dryer 10, it is recommended that the dust 9 be discarded after each use, which can be a great merit for the user.

  FIG. 6 shows the cleaning operation of the filter cleaning device of the first embodiment in the forward path. At the initial position in the forward path, the blade 3 b of the cleaning body 3 is accommodated in the recess 4. Then, by rotating the cleaning body 3 clockwise in the drawing, the blade 3 b moves from the recess 4 and comes into contact with the filter body 1. When the blade 3b is housed in the recess 4, the movable mechanism 7 is in the state shown in FIG. 4A. As the operation lever 7a is pushed to the left side in the drawing, the cleaning body 3 rotates to rotate the filter body 1. to clean up.

  The blade 3b in contact with the filter body 1 is bent or curved backward with respect to the traveling direction. Then, by separating from the filter body 1 in the vicinity of the end of the forward path, the blade 3b is released from the bent or curved state, and the dust 9 is ejected from the dust discharge port 5 to the outside. At this time, the movable mechanism 7 is in the state shown in FIG. 4B, and the dust discharge suppressing body 6 is open. With this configuration, when the user throws the dust into a predetermined disposal place such as a trash can, the user can surely transport the dust to the disposal place because the blade 3b blows off the dust by the restoring force of the blade 3b.

  FIG. 7 shows the cleaning operation of the filter cleaning device of the first embodiment in the return path. At this time, the movable mechanism 7 returns from the state of FIG. 4C to the initial state shown in FIG. ing. In the return path, the cleaning body 3 is gently bent or bent from the state in which the blade 3b is released from the bent or curved state to the rear side in the advancing direction with the vicinity of the root of the blade 3b as a fulcrum. It will be in a curved state. This is because the cleaning body 3 includes a support portion 3e that contacts the front side of the blade 3b with respect to the traveling direction in the return path, but the support portion 3e is not formed on the rear side. The blade 3b has one end fixed to the base 3c, but is not fixed to the support 3e. Therefore, the blade 3b in contact with the filter body 1 has different bending directions and bending fulcrums and angles in the forward path and the backward path. Therefore, in the forward path, the blade 3b bends or curves in a substantially L shape at a large angle with the tip of the support portion 3e as a fulcrum, so that the blade 3b hits the filter body 1 more strongly. Therefore, the dust removal efficiency is improved, and the force for blowing off the dust 9 near the end of the forward path can be increased.

  Further, since the blade 3b in the bent state in the return path is positioned in the recess 4, the bending is eliminated and the blade 3b can be returned to the original state. If the concave portion 4 is not formed, when switching from the return path to the forward path, the blade 3b needs to be bent from the rear side in the traveling direction in the return path to the front side. Therefore, a large force is required when the user presses the operation lever 7a, and a large load is applied to the blade 3b and the filter body 1. Therefore, by forming the recess 4 at the initial position, switching from the return path to the forward path can be performed with a light force, and the durability of the blade 3b and the filter body 1 is improved.

  FIG. 8 is an explanatory view showing a filter cleaning device according to a second embodiment of the present invention. A filter cleaning device 10a shown in FIG. 8 includes a cleaning device main body 2A, a filter body 1A capable of collecting dust from ventilation, and a blade 11b formed with protrusions 11g for scraping dust on side portions. It has a cleaning body 11 that moves along the body 1A and removes the dust 9 attached to the filter body 1A.

  Further, the length from one end 11f of the cleaning body 11 to the other end 11d is longer than the shortest distance from the one end 11f of the cleaning body 11 to the filter surface 12 of the filter body 1A. . Further, a support portion 11e that contacts the rear side of the blade 11b with respect to the traveling direction of the cleaning body 11 in the forward path is formed at the tip of the base 11c, and the blade 11b is bent or rearward in the forward direction in the forward path. In contact with the filter body 1A in a curved state.

  The cleaning device main body 2A includes a recess 4c that houses the tip of the blade 11b at the initial position of the cleaning body 11 where the blade 11b is not in sliding contact with the filter body 1A, and the tip of the blade 11b is formed in the recess 4c. In the accommodated state, a part of the protrusion 11g is formed between the side of the blade 11b and the tip 11d of the blade 11b at the same height as the filter surface 12. The blade 11b is provided with a recess 4d that accommodates the tip of the blade 11b at the forward end position of the cleaning body 11 that is not in sliding contact with the filter body 1A. Since the concave portion 4d can release the bent or curved state of the blade 11b, the dust 9 can be blown off and discharged from the dust discharge port 5.

  Although the movable mechanism of the filter cleaning device 10a of the second embodiment is not shown in the drawings, a motion transmission member having two large and small spur gears connected by a rotating shaft is used, and one small spur gear is disposed on the cleaning body side. By meshing with the provided rack and meshing the other large spur gear with the rack provided on the operating lever, the linear motion of the operating lever can be converted into rotational motion and then further converted into linear motion. 11 can be linearly moved greatly.

  The filter cleaning device according to the present invention is used to remove dust adhering to the filter. Moreover, the clothes dryer which concerns on this invention is utilized as a clothes dryer provided with the filter cleaning apparatus.

DESCRIPTION OF SYMBOLS 1, 1A Filter body 2, 2A Cleaning apparatus main body 2a Outer side surface 3, 11 Cleaning body 3a Rotating shaft 3b, 11b Blade 3c, 11c Base 3d, 11d The other end 3e, 11e of cleaning body 3f, 11f One end of the cleaning body 3g, 11g Protrusion 4, 4c, 4d Recess 5 Dust outlet 6 Dust discharge suppression body 6a, 6b Long plate 6c Pressing part 6d Flap 6e Curved surface of the pressing part 7 Movable mechanism 7a Operation lever 7b Member 7c Curved surface of operation lever 7d, 7e Action part 8 Rotating shaft 9 Dust 10, 10a Filter cleaning device 12 Filter surface 20 Clothes dryer 20a Door 20b Rotating drum 20c Motor 20d Tank body 21a, 21b, 21c Circulating duct 22 Heating means 23 Blowing means (fan)
C Thickness of movable mechanism

Claims (6)

The filter cleaning device
A cleaning device body;
A filter body capable of collecting dust from ventilation,
A cleaning body;
While preventing the dust collected in the filter body from being discharged to the outside, a dust discharge suppressing body that can be opened and closed, and
A movable mechanism for moving the dust discharge suppressing body,
The movable mechanism includes an operation lever, a motion transmission member that transmits the motion transmitted from the operation lever to the cleaning body, a pressing portion that is formed on the dust discharge suppression body and presses the operation lever during a closing operation. , And
By pressing the operation lever, the cleaning body cleans the filter body and simultaneously opens the dust discharge suppression body,
When the dust discharge suppression body is closed, the pressing portion returns the cleaning body to the initial position by pressing the operation lever.
The movable mechanism is installed on the outer surface of the cleaning device main body, and the longitudinal direction of the operation lever and the direction orthogonal to the thickness direction of the motion transmitting member are relative to the outer surface of the cleaning device main body. A filter cleaning device that is installed in parallel.   2. The motion transmitting member converts a linear motion transmitted from an operation lever into a rotational motion, and the movable mechanism is installed only on one outer surface of the cleaning device main body. The filter cleaning device as described in 1.   The motion transmission member has a spur gear, the operation lever has a rack gear, and the thickness of the movable mechanism is the same as the greater of the thickness of the spur gear or the thickness of the operation lever. The filter cleaning device according to claim 2.   The action part where the motion transmission member acts on the operation lever and the action part where the operation lever acts on the pressing part of the dust discharge suppressing body are on the same plane. The filter cleaning device according to item.   5. The filter cleaning device according to claim 1, wherein the dust discharge suppressing body rotates and can be opened and closed and the pressing portion has a curved surface. In a rotating drum that is rotatably arranged in the tank and accommodates clothes, etc., hot air generated by the blowing means and heating means is circulated through the circulation duct so that the clothes can be dried. The clothes dryer provided with the filter cleaning apparatus of any one of Claims 1-5 in the exhaust side from the said tank body.

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