JP2011244972A - Dust collecting bag for vacuum cleaner and vacuum cleaner using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a dust collecting bag for a vacuum cleaner which has a high dust collection efficiency and reduces an offensive smell of exhaust air.SOLUTION: The dust collecting bag includes an inlet side bag wall 5 on the side of an inlet 1 through which intake air flows in, a sucked-in side bag wall 2 which is opposite to the inlet 1, a lateral periphery bag wall 4 which forms the part between the inlet 1 and the sucked-in side bag wall 2, and an air flow control guide 6 which is provided inside the sucked-in side bag wall 2 and which performs diversion of the intake air toward the lateral periphery bag wall 4 and produces an inverted air flow toward the inlet side bag wall 5 along the lateral periphery bag wall 4. A ventilation part 7 is retained in the peripheral part of the air flow control guide 6, while a powdery material 600 having a deodorizing effect and/or an antibacterial-disinfectant effect is stored in a floating space 46 between the sucked-in side bag wall 2 and the air flow control guide 6. Since sucked air is inverted by the air flow control guide 6, dust collection is facilitated on the side of the inlet 1 in the lateral periphery bag wall 4 and, besides, the powdery material 600 is emitted into the dust collecting bag 100 from the ventilation part 7 and the deodorization and disinfection of dust 38 can be performed effectively.

Description

  The present invention relates to a dust bag for an electric vacuum cleaner and an electric vacuum cleaner using the same.

  Conventional dust collecting bags for vacuum cleaners (hereinafter referred to as “dust collecting bags”) and vacuum cleaners using the same are disclosed in, for example, Patent Documents 1, 2, and 3 below.

  In Patent Document 1, the direction of the suction air from the suction port of the dust collection bag stored in the dust collection chamber is decentered obliquely with respect to the axis of the suction port, so that the suction air is opposed to the suction port. A dust collection bag and a vacuum cleaner are disclosed that form a spiral flow along the side peripheral bag wall toward the suction side bag wall. The spiral flow of the intake air centrifuges the dust accompanying the intake air and increases the dust collection rate on the side peripheral bag wall. As a result, it is possible to improve the dust collection rate and the effect of preventing clogging on the suction side.

  Patent Document 2 discloses a dust collection bag in which a flat thermoplastic sheet is thermally welded to the outer surface of the suction side bag wall of the dust collection bag. In this case, the thermoplastic sheet forms a larger air-impermeable portion than the suction port of the dust bag. And, by this air-impermeable portion, the intake air sucked into the bag from the suction port is diverted from the central portion toward the side peripheral bag wall around it, and along the side peripheral bag wall, the suction port side Inverted to face the bag wall. By carrying the dust that accompanies the suction air to the suction port side and collecting the dust by the reversal force at the time of the reversal of the suction air, it is possible to improve the dust collection rate and the effect of preventing clogging on the suction side. it can.

  Further, Patent Document 3 includes a storage case in which a deodorizer is stored in an opening that sucks dust in a dust bag, and a deodorizer discharge port that is introduced into the dust bag by suction air on the inner peripheral surface of the opening. A dust collection bag and a vacuum cleaner are disclosed, which are designed to obtain a deodorizing effect of the collected dust by mixing the dust in the dust collection bag and the deodorizer introduced by the suction air. ing.

JP 2002-291663 A JP 60-34423 A Japanese Patent No. 4380690

  However, in the configuration of the vacuum cleaner dust bag and the vacuum cleaner disclosed in Patent Document 1, the spiral flow of the suction air flows from the suction port of the dust bag toward the suctioned side, and therefore the centrifugal action at that time The dust collection rate on the side circumferential bag wall can be increased by this, but the dust is easily carried to the side of the suction side bag wall due to the dynamic pressure, and the dust collection rate is illustrated in Patent Document 1 The suction side is higher than the suction side.

  Further, it is also shown that dust is not collected in the suction port area from the blower chamber side. However, dust that has not been centrifuged is likely to be clogged in a relatively wide range on the suction side, since it should be trapped in a region facing the suction port of the suction side bag wall. Furthermore, a special guide structure is required for the suction air to be sucked while being eccentric into the dust bag. Such a special guide structure causes an increase in cost, and requires a special effort in the operation of storing the dust bag, which also causes a decrease in convenience.

  In addition, the vacuum cleaner dust collection bag disclosed in Patent Document 2 is merely provided with an air-impermeable portion larger than the suction port on the suction side of the dust collection bag. Therefore, the structure and attachment / detachment are simple, and it is easy to prevent clogging on the suction side by reducing the dust collection rate on the suction side by inverting the suction air toward the suction side bag wall. I can say that. However, the air-impermeable portion greatly blocks the ventilation area on the suction side of the dust bag, causing pressure loss. In addition, clogging is caused by the reduction of the ventilation area. Furthermore, the pressure loss has a greater influence on the design due to the problems of increasing the capacity of the blower and lowering the suction capacity. This is because if the air-permeable area shortage due to the air-impermeable portion is to be secured outside the air-permeable portion area of the dust-collecting bag, the total area of the dust-collecting bag is increased, the size is increased, and the cost is increased. This is because, in order to lower it, further contrivance is required on the dust collection bag side or dust collection chamber side, such as keeping the bellows in shape.

  Moreover, in the structure of the dust bag for vacuum cleaners and vacuum cleaners disclosed in Patent Document 3, deodorization is carried out into the dust collection bag by suction air from the storage part of the granular or powdery deodorant provided with the suction port. The deodorizing effect can be obtained by introducing the agent together with dust and mixing the deodorant with the dust. However, in order to deodorize dust, it is necessary to make it a very fine powder agent and mix it with dust evenly, and the fine powder deodorant easily induces clogging of the dust bag.

  The present invention solves such a conventional problem, and can prevent or suppress pressure loss due to the air-impermeable portion while having a structure and a technique for controlling the intake air by an air-permeable portion that can be easily attached and detached. And it aims at providing the dust collection bag for vacuum cleaners which can acquire the deodorizing effect of the dust which collected dust, and a vacuum cleaner using the same.

  In order to solve the above-described conventional problems, a dust collection bag for a vacuum cleaner according to the present invention includes a suction port through which suction air containing dust flows, a suction-side bag wall on the suction port side, and a suction port. Provided on the opposite suction side bag wall, on the side circumferential bag wall that forms between the suction port and the suction side bag wall, and on the inner surface of the suction side bag wall, An air flow control guide for diverting toward the wall and generating a reversal air flow toward the suction port side bag wall along the side circumferential bag wall, and the peripheral portion of the air flow control guide is intermittently connected to the suction side bag wall The deodorizing effect and / or in the space formed by the inner surface of the suction side bag wall and the air flow control guide are attached in a plurality of adhering areas provided, and have a clearance around the air flow control guide. Or it contains powder material with antibacterial sterilization effect, airflow control guide, Intake air that is sucked in and directed from the suction port of the dust bag is received by increasing the airflow resistance in the direction from the suction port toward the suction side bag wall, and the received suction air is directed from the center toward the side bag wall side. A reversal airflow is generated that is guided so as to be diverted, and is reversed along the side circumferential bag wall toward the suction port side bag wall. Due to the initial force of the reversal airflow, particularly large and heavy dust accompanying the suction air passes, so that it is difficult to collect dust on the suction side bag wall, and tends to be collected on the suction port side of the side peripheral bag wall.

  In addition, the fine dust that is difficult to collect and easily accompanies the intake air to the end of the air is formed by the air flow control guide around the suction side bag wall that is not affected by the dynamic pressure of the reverse air flow and the corner formed by the side bag wall. In the stagnation area or in the vicinity of the inner surface of the side peripheral bag wall where the accompanying force has decreased due to the attenuation of the force, the suction air is collected in the area where the suction air escapes to the suction side due to the static pressure difference from the suction side or a quasi-static pressure difference close thereto. Become so.

In addition, the airflow control guide provides a certain amount of ventilation resistance against the air flow from the suction port toward the suction side bag wall. Therefore, the suction air that has entered the dust collection bag from the suction port is difficult to escape directly from the suction side bag wall. In other words, the intake air is more likely to escape from the entire dust bag as compared to the case where there is no airflow control guide. That is, the suction force for the dust collection bag is the air stagnation area formed by the corner portion between the air flow control guide of the suction side bag wall and the side peripheral bag wall, the space between the specific diversion direction that becomes a weak force, It also extends to the vicinity of the inner surface of the side peripheral bag wall where the influence of the suction force is reduced due to the attenuation of the force.

  The airflow control guide receives the dynamic pressure of the airflow diverted from the central portion toward the side peripheral bag wall, and is stored in a space formed between the airflow control guide and the suction side bag wall. Since the powder material having the deodorizing effect or the antibacterial sterilizing effect is released so as to be attracted into the dust bag from the gap, the deodorization and sterilization of the dust in the dust bag can be effectively performed.

  In the dust bag for a vacuum cleaner of the present invention, the air flow control guide is provided on the suction side bag wall, so that the suction air from the suction port is directed from the center of the dust bag toward the side circumferential bag wall side. The reversal air flow toward the suction port side bag wall is generated along the side circumferential bag wall. As a result, the ventilation resistance increases on the side of the suction side wall, and in the area of stagnation of the air formed by the corner part on the side of suction or the area near the inner surface of the side peripheral wall, the high ventilation due to the difference in static pressure or quasi-static pressure from the suction side. Has performance.

  In the above-described state configured in the dust bag, the dust that is particularly large and heavy among the dust accompanying the suction air is sucked into the suction port on the side circumferential bag wall rather than the suctioned side due to the force of the reverse airflow. It becomes easier to collect dust on the side. In addition, fine dust that is difficult to collect is not collected in a concentrated manner on the suction side wall, but is efficiently collected in the air stagnation area formed by the suction side corner part or the area near the inner surface of the side peripheral bag wall. Become so. By these actions, a high dust collection rate and the effect of preventing clogging of the suction side bag wall can be satisfied.

  Furthermore, by storing a powder material having a deodorizing effect or an antibacterial sterilizing effect in a space formed by the inner surface of the suction side bag wall and the airflow control guide, and providing a space communicating with the space and the inside of the dust bag The powder material having the deodorizing effect or the antibacterial sterilizing effect released into the dust collection bag under the dynamic pressure of the reverse airflow is mixed with the dust to deodorize the bad smell of the dust. Alternatively, the antibacterial sterilizing material can prevent the bad smell generated from the propagation of bacteria contained in the dust and the decay of garbage by the bacteria.

  In addition, materials with deodorizing effect or antibacterial sterilizing effect need to be mixed in powder and dust evenly in order to enhance the effect, and these sucking materials can prevent clogging of the suction side bag wall. Can be satisfied.

  In particular, the airflow control guide arranged in the dust bag of the present invention can exert a sufficient suction force on the stagnation region and is also effectively used for collecting fine dust. And pressure loss caused by the airflow control guide can be avoided or suppressed.

  Moreover, the vacuum cleaner of this invention is equipped with the dust bag for vacuum cleaners of Claim 1 or 2, has high dust collection efficiency, and can reduce the odor of exhaust air. it can.

(A) Front view of dust collecting bag for electric vacuum cleaner according to Embodiment 1 of the present invention, (b) Cross-sectional view of dust collecting bag for electric vacuum cleaner The perspective view which shows the use condition of the dust bag for the vacuum cleaner in a see-through state (A) Longitudinal sectional view of the vacuum cleaner main body of the vacuum cleaner equipped with the dust bag for the vacuum cleaner, (b) Cross sectional view of the main part of the vacuum cleaner. The perspective view which shows the dust bag which has opened and stored the dust chamber of the vacuum cleaner main body in a transparent state Whole perspective view of the vacuum cleaner (A)-(f) Explanatory drawing which shows the some example of a shape of the airflow control guide provided in the dust bag for the vacuum cleaner in a schematic manner Explanatory drawing of the state where the non-adhesion area works as a ventilation part when the opposing surface including the adhesion peripheral part or the adhesion peripheral part of the airflow control guide is flattened A perspective view showing the use state of a dust bag provided with a guide-shaped airflow control guide that is Mt. Fuji raised from the periphery to the center. Perspective view showing the use state of a dust bag provided with a guide-shaped airflow control guide in the form of Mt. A perspective view showing the use state of the dust bag in which the air flow control guide is attached to the suction side bag wall with leg ribs protruding to the suction side and a ventilation portion is formed between the two. Graph showing comparison of ventilation pressure loss characteristics of dust bag for vacuum cleaner Graph showing comparison of airflow rate reduction characteristics due to garbage

  According to a first aspect of the present invention, there is provided a suction port through which suction air containing dust flows, a suction side bag wall on the suction side, a suction side bag wall facing the suction port, the suction port, and the suction target. A side peripheral bag wall that forms between the side bag walls and an inner surface of the suctioned side bag wall, and diverts the suction air toward the side peripheral bag wall and the suction along the side peripheral bag wall An airflow control guide for generating a reversal airflow toward the mouth side bag wall, and the airflow control guide is attached to a plurality of adhering areas intermittently provided on the suction side bag wall. A space that has a gap around the guide and contains a powder material having a deodorizing effect and / or an antibacterial sterilizing effect in a space formed by the inner surface of the suction side bag wall and the airflow control guide. The control guide sucks in the intake air that is sucked in from the suction port of the dust bag. The airflow resistance in the direction from the mouth toward the suction side bag wall is increased, and the received suction air is guided to be diverted from the central portion toward the side peripheral bag wall, and the suction port is formed along the side peripheral bag wall. A reversal airflow that reverses toward the side bag wall is generated. Due to the initial force of the reversal airflow, particularly large and heavy dust accompanying the suction air passes, so that it is difficult to collect dust on the suction side bag wall, and tends to be collected on the suction port side of the side peripheral bag wall.

  In addition, the fine dust that is difficult to collect and easily accompanies the intake air to the end of the air is formed by the air flow control guide around the suction side bag wall that is not affected by the dynamic pressure of the reverse air flow and the corner formed by the side bag wall. In the stagnation area or in the vicinity of the inner surface of the side peripheral bag wall where the accompanying force has decreased due to the attenuation of the force, the suction air is collected in the area where the suction air escapes to the suction side due to the static pressure difference from the suction side or a quasi-static pressure difference close thereto. Become so.

  In addition, the airflow control guide provides a certain amount of ventilation resistance against the air flow from the suction port toward the suction side bag wall. Therefore, the suction air that has entered the dust collection bag from the suction port is difficult to escape directly from the suction side bag wall. In other words, the intake air is more likely to escape from the entire dust bag as compared to the case where there is no airflow control guide. That is, the suction force for the dust collection bag is the air stagnation area formed by the corner portion between the air flow control guide of the suction side bag wall and the side peripheral bag wall, the space between the specific diversion direction that becomes a weak force, It also extends to the vicinity of the inner surface of the side peripheral bag wall where the influence of the suction force is reduced due to the attenuation of the force.

  The airflow control guide receives the dynamic pressure of the airflow diverted from the central portion toward the side peripheral bag wall, and is stored in a space formed between the airflow control guide and the suction side bag wall. Since the powder material having the deodorizing effect or the antibacterial sterilizing effect is released so as to be attracted into the dust bag from the gap, the deodorization and sterilization of the dust in the dust bag can be effectively performed.

  In the second invention, in particular, the space formed by the inner surface of the suction side bag wall of the first invention and the airflow control guide has a shape larger than the gap between the peripheral portions of the airflow control guide, and surroundings such as silica gel. The material that lowers the humidity of the air is stored, and the space between the airflow control guide and the suction side bag wall and the inside of the dust collection bag communicate with each other through a gap. The dust in the dust collection bag is always dehumidified, and propagation of germs contained in the dust can be suppressed.

  A vacuum cleaner according to a third invention is provided with the dust bag for a vacuum cleaner according to claim 1 or 2, has high dust collection efficiency, and reduces exhaust air odor. Can do.

  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.

(Embodiment 1)
Several specific examples of the vacuum cleaner dust collecting bag according to Embodiment 1 of the present invention and one specific example of the vacuum cleaner using the same will be described below with reference to FIGS. The present invention is used for understanding the present invention. The following description is a specific example of the present invention and does not limit the scope of the claims.

  The embodiment of the dust bag for a vacuum cleaner of the present invention is the example shown in FIGS. 1 to 4, the example shown in FIG. 8, the example shown in FIG. 9, and the example shown in FIG. Show.

  In the dust bag for a vacuum cleaner (hereinafter referred to as “dust bag 100”) in the present embodiment, an air flow control guide 6 is provided on the suction side bag wall 2 facing the suction port 1. Between the airflow control guide 6 and the suction side bag wall 2, a ventilation portion 7 of about 1 mm to 3 mm is formed so as to communicate with the inside of the dust bag 100. More specifically, the ventilation portion 7 is provided between the facing area 2 a (see FIG. 6) facing the airflow control guide 6 and the airflow control guide 6 on the bag inner surface of the suction side bag wall 2. It is a gap.

  The airflow control guide 6 becomes a ventilation resistance when viewed from the suction air 3 sucked into the dust bag 100 from the suction port 1 and diverts the suction air 3 from the central portion toward the side peripheral bag wall 4, A reversal air flow 3 a is generated along the wall 4 toward the suction side bag wall 5.

  Thus, the airflow control guide 6 receives the suction air 3 sucked from the suction port 1 of the dust bag 100 at the guide surface 6d, and the received suction air 3 is received in the center according to the shape of the guide surface 6d. It is divided into two or more specific directions such as left and right and up and down, or the entire circumference from the portion toward the side circumferential bag wall 4 side. In particular, by having the protrusion 400 that faces the inlet 1 at least at the center of the guide surface 6d, the side surface bag wall 4 can be sufficiently reached while maintaining a higher diversion force than in the case of the flat surface. A reversal air flow 3a with a strong force that reverses toward the suction side bag wall 5 along the line 4 is generated.

  Further, the airflow control guide 6 has a certain amount of ventilation resistance against the air flow from the suction port 1 to the suction side bag wall 2. Therefore, the suction air 3 that has entered the dust bag 100 from the suction port 1 is difficult to escape directly from the suction side bag wall 2. In other words, the suction air 3 is more easily removed from the entire dust bag 100 than when the airflow control guide 6 is not provided. That is, the suction force with respect to the dust bag 100 is the air stagnation region 11 formed by the corner portion 9 between the air flow control guide 6 of the suction side bag wall 2 and the side peripheral bag wall 4 or a specific force that is a weak force. It also extends to the space between the diversion directions and the vicinity of the inner surface of the side circumferential bag wall 4 where the influence of the suction force is reduced due to the attenuation of the force.

  Then, due to the high initial force immediately after the reversal of the reversal air flow 3a, large and heavy dust 38 accompanying the suction air 3 is passed in front of the suction-side bag wall 2, so that the suction-side bag wall 2 It becomes easier to collect dust on the side of the suction port 1 of the side circumferential bag wall 4 than on the side. Further, since the dust is small and light, the fine dust that easily accompanies the suction air 3 until the end is a corner between the air flow control guide 6 of the suction side bag wall 2 and the side peripheral bag wall 4 that is not affected by the dynamic pressure of the reverse air flow 3a. The air is trapped in the air stagnation region 11 formed by the portion 9, the space between the specific diversion directions as a weak force, and the region in the vicinity of the inner surface of the side peripheral bag wall 4 whose influence is reduced by the attenuation of the force.

  As a result, after sufficiently satisfying the dust collection rate and the clogging prevention effect of the suction side bag wall 2, premature clogging due to a decrease in the ventilation area and pressure loss due to the airflow control guide 6 can be avoided or suppressed. . Therefore, the increase in the capacity of the electric blower 21 and the increase in the size of the dust bag 100 to cope with pressure loss are eliminated or reduced.

  Further, in the floating space 46, which is a space formed by the airflow control guide 6 and the suction side bag wall 2, as shown in FIG. 3B, a powdery material 600 having a deodorizing effect or an antibacterial sterilizing effect. Can be stored. For example, if powdered hydrophobic zeolite is mixed with about 0.5% silver antibacterial agent, it will prevent bad odors from dust collected in ordinary households, and spoilage odors caused by the propagation of germs contained in dust Can be prevented.

  Hydrophobic zeolite has the same form as wheat flour, and therefore, when it is vibrated when using a vacuum cleaner, it hardly spills from the gap of the ventilation portion 7 of about 1 mm to 3 mm.

  When the airflow control guide 6 is attached to and attached to the inner surface 2b of the suction side bag wall 2, the peripheral portion is intermittently attached to the suction side bag wall 2 so as to be between the two attachment areas 6a and 6a. The non-adhesion zone 6b can be used as the ventilation portion 7 into the dust bag 100.

  When the reverse airflow 3a divided by the guide surface 6d of the airflow control guide 6 passes through the hem end of the guide surface 6d, a negative pressure is generated in the ventilation portion 7 due to the dynamic pressure of the reverse airflow 3a. Due to the so-called Venturi effect, the powdery material 600 accommodated in the floating space 46 formed by the airflow control guide 6 and the suction side bag wall 2 is attracted into the dust bag 100 and is accompanied by the reverse airflow 3a. It mixes with the dust 38 and adheres to the dust 38 and can exert a deodorizing effect or an antibacterial sterilizing effect.

  In the example shown in FIG. 10, silica gel particles 700 having a diameter exceeding about 3 mm are accommodated in the floating space 46 formed by the airflow control guide 6 and the suction side bag wall 2. In this case, since the ventilation portion 7 communicates with the inside of the dust bag 100, the dehumidifying effect of the dust 38 collected in the dust bag 100 is exhibited, and the propagation of germs contained in the dust 38 is suppressed. It is something that can be done. In addition, the dehumidifying action of the silica gel particles 700 can be exhibited even during storage without using a vacuum cleaner.

  The airflow control guide 6 is not particularly limited as long as the airflow control guide 6 can increase the airflow resistance with respect to the suction side bag wall 2 and can provide a predetermined guide to the suction air 3. For example, thermoforming such as vacuum forming of a plastic sheet can be easily and inexpensively manufactured into various three-dimensional shapes. The airflow control guide 6 formed in this way can be easily attached to the suction side bag wall 2 of the dust collection bag 100 made of a nonwoven fabric such as polypropylene by ultrasonic welding or heat welding. Of course, the attachment method is not particularly limited, and other methods such as adhesion and stitching can be used.

  In the example shown in FIG. 1 and each example shown in FIG. 6, the airflow control guide 6 is primarily formed by vacuum forming having a rising peripheral wall 6 e that rises from an adhesion peripheral portion 6 c formed in an annular shape and is connected to the guide surface 6 d. Shows the goods. Specifically, the primary processed product is obtained by cutting out a range corresponding to the non-adhesion area 6b except for a range corresponding to the adhesion area 6a of the adhesion peripheral portion 6c and the rising peripheral wall 6e as contour shaping by Thomson processing. is there.

The air flow control guide 6 formed in this manner is non-attached corresponding to the range in which the attached peripheral portion 6c and the rising peripheral wall 6e are cut off by welding the attached peripheral portion 6c that has not been removed to the suction side bag wall 2. The region 6b forms the ventilation portion 7 that is lifted from the suction side bag wall 2. Therefore, even if the area 2 a facing the air flow control guide 6 of the suction side bag wall 2 is supported from the suction side so as to maintain a flat surface, the ventilation portion 7 and the floating space 46 are in close contact with the suction side bag wall 2. Never do.
The airflow control guide 6 in the example shown in FIG. 10 has leg ribs 6f protruding from the flat adhesion peripheral portion 6c on the back surface side, that is, from the opposite side to the guide surface 6d, to the inner surface 2b of the suction side bag wall 2. The floating space 46 formed between the airflow control guide 6 and the suction side bag wall 2 is always secured.

  The floating space 46 is opened in the dust bag 100 on the side of the airflow control guide 6, and forms a ventilation portion 7. Therefore, it is not closed regardless of how the suction side bag wall 2 is sucked. Such leg ribs 6f are difficult to be vacuum-formed without affecting the shape of the guide surface 6d of the airflow control guide 6, and mold molding such as retrofitting the leg ribs 6f or injection molding a resin material is suitable. .

  The vacuum cleaner 200 using the dust bag 100 in the present embodiment as described above will be described with reference to FIGS.

  3 to 5, the vacuum cleaner 200 includes a blower chamber 22 having an electric blower 21 in the rear, a dust collection bag 100 for collecting dust 38 in the front, and an upper portion shown in FIG. 4. A vacuum cleaner main body 300 is provided in which a dust collection chamber 23 is provided so as to be detachable with opening and closing of the lid 26.

  The partition wall 22a that partitions the blower chamber 22 and the dust collection chamber 23 is provided with a suction port 24 that applies the suction force from the electric blower 21 to the dust collection chamber 23 side. An exhaust port 8 for exhausting air from the outside is opened.

  In the dust collection chamber 23, a hose connection port 25 connected to the suction port 1 of the dust bag 100 stored in the front part of the cleaner body 300 is opened, and the suction port 24 of the blower chamber 22 is stored in the dust collection chamber 23. It is located opposite to the suction side bag wall 2 of the dust bag 100. The dust collection chamber 23 is stored so that the suction force from the suction port 24 extends around the suction side bag wall 2 and the side peripheral bag wall 4 of the stored dust collection bag 100.

  In order to secure the connection between the suction port 1 and the hose connection port 25, the dust collection bag 100 has the suction port 1 on both sides of the portion where the hose connection port 25 is open on the inner surface of the dust collection chamber 23. There is provided a paper insert portion 29 for receiving a thick paper 28 which is adhered or bonded to the air bag side bag wall 5 so as not to leak air from above. By inserting the cover 28 into the cover insertion portion 29 from above, the cover 28 is crimped to the seal lip 31a of the seal member 31 provided in the inner opening of the hose connection port 25, and the suction port 1 is connected to the hose. The mouth 25 is connected so as not to leak air. In addition, the insertion state of the cover 28 is held from above by the pressing piece 30 on the upper lid 26 side, and is also pressed to the seal lip 31a side, so that the upper contact is not loosened. ing.

  Thus, when the electric blower 21 is operated, the electric blower 21 performs suction through the suction port 24 and generates air exhausted toward the exhaust port 8. At this time, the suction through the suction port 24 passes through the dust collection chamber 23 from the outer periphery of the dust bag 100 to the suction port 1 and is connected to the hose connection port 25 and the hose connection port 25 through the connection pipe 33. 5 extends to the suction port (not shown) of the suction tool 35 connected to the tip of the hose 32 and the tip of the hose 32 via the tip pipe 34. At this time, as shown in FIG. 5, as the vacuum cleaner 200, the dust 38 is sucked together with the outside air from the suction tool 35 connected to the vacuum cleaner main body 300 and is sucked into the dust bag 100 from the suction port 1. Wind 3 is generated.

  The suction air 3 sucked into the dust collection bag 100 is a suction side bag wall 2 facing the suction port 1 of the dust collection bag 100, in particular, an air flow control guide 6 provided on the suction side bag wall 2. The air flow control guide 6 is received as a ventilation resistance, and the action of diverting from the central part according to the shape of the guide surface 6d to the side peripheral bag wall 4 side is secured. The dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be improved.

  The suction direction of the suction air 3 is from the suction port 1 to the suction port 24. In the present embodiment, the flow is directed obliquely upward toward the suction port 24 that opens toward the upper side of the suction port 1, and the airflow control guide 6 is disposed at a position to receive this flow. However, in the folded configuration shown in FIG. 1 of the dust bag 100, the positions of the suction port 1 and the airflow control guide 6 correspond to substantially concentric.

  Here, as shown in FIGS. 3 and 4, the suction port 24 of the blower chamber 22 supports the suction side bag wall 2 of the dust collection bag 100 pressed by the suction air 3 from the suction side without impairing the ventilation. A ventilation support portion 27 having a lattice shape or the like is provided. Other than the airflow control guide 6, the suction side bag wall 2 is not ventilated within the range of the suction port 24, and the ventilation resistance increasing portion is not formed.

  At the same time, the dust collection bag 100 is arranged in the dust collection chamber 23 around the outside of the side circumferential bag wall 4 of the dust collection bag 100, in particular, giving priority to the upper part, or including the left and right and lower parts. In order to leave the suction passage 41 between them, a rib 42 provided on the upper lid 26 is supported and stored from the outside.

  The guide surface 6d of the airflow control guide 6 may be simply flat as shown in FIG. 6A, and instead of the normally open vent 7 as shown in the figure, as shown in FIG. The air flow control guide 6 and the suction side bag wall 2 can be used to form a flat sheet member or plate member by adopting the ventilation portion 7 so that the suction side bag wall 2 is in close contact.

  In this case, the suction air 3 enters the flat guide surface 6d from a direction substantially perpendicular to the flat guide surface 6d. Heading in a direction almost perpendicular to However, it flows in the direction of the suction side bag wall 5 with a high degree of freedom along the side circumferential bag wall 4. That is, it reverses toward the suction port 1 side to improve the dust collection rate and the clogging prevention effect of the suction side bag wall 2.

  Further, in the example shown in FIG. 6B, a convex portion 6g as shown by a solid line is provided in the center of the guide surface 6d of the airflow control guide 6 in a single character form extending in one direction as shown by a virtual line. Thus, the intake air 3 received by the guide surface 6d of the airflow control guide 6 is distributed to both sides by the convex portion 6g and divided into two directions.

  Further, in the example shown in FIG. 6C, when the projecting portion 6g shown in FIG. 6B is a sharp projecting portion 6h sharpened toward the projecting side, the flow is divided and distributed to both sides with respect to the intake air 3. The collision with the suction wind 3 is eliminated to make it easier to prevent the power from being attenuated. Thereby, the carrying action of the dust 38 to the suction side bag wall 5 side by the reversal of the suction air 3 can be enhanced. Therefore, the dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be further enhanced.

The example shown in FIG. 6 (d) is the same as that shown in FIGS. 1 to 4, and as shown by the solid line in FIG. 6 (d), the central portion is raised from the peripheral portion while curving in a mountain shape. As shown by the phantom line, the peak portion is a mountain-shaped protrusion 6i that is lowered in the longitudinal direction while curving from the center portion toward both ends. They can be diverted to both sides more smoothly and with less attenuation of power. In addition, by increasing the diversion strength at the central portion of the mountain-shaped protrusion 6i and lowering the both ends, the flow is disturbed at the boundary between the diversion area and the non-diversion area of the intake air 3, and the dust 38 is collected. It can be suppressed that the area is disturbed toward the suction side bag wall 2 and the dust collection rate and the effect of preventing clogging of the suction side bag wall 2 are reduced.

  Further, the example shown in FIG. 6 (e) has a concave curved surface 6j whose curve direction is reversed at the end portion in the diversion direction while following the shape of the mountain-shaped protrusion 6i of the example shown in FIG. 6 (d). A mountain-shaped protrusion is formed. Thus, the diversion of the suction air 3 toward the side peripheral bag wall 4 is forcibly reversed with a directional component toward the suction port side bag wall 5. As a result, it is possible to suppress the attenuation of the force due to the collision with the side peripheral bag wall 4 and the collision separation of the accompanying dust 38, and to increase the dust collection rate on the suction port 1 side.

  In order to increase the dust collection rate on the suction port 24 side of the dust 38, the forced reversal of the suction air 3 by the concave curved surface 6j avoids the sudden reversal to the extent that the dust 38 accompanying the suction air 3 is centrifuged. Is preferred. This is because if the dust 38 cannot follow the reverse airflow, the dust 38 is collected in the corner portion 9 formed by the suction side bag wall 2 and the side peripheral bag wall 4. Therefore, the angle θ at which the suction air 3 after the forced reversal faces the side circumferential bag wall 4 is preferably about 45 ° to 60 °, for example, but is not limited to this range. If the angle is less than 45 °, collision and separation of large and heavy dust 38 is likely to occur due to the side circumferential bag wall 4, and if the angle is 60 ° or more, centrifugal separation of the large and heavy dust 38 is likely to occur due to forced reversal of the suction air 3.

  Each of the airflow control guides 6 in the examples of FIGS. 6B to 6E is for diverting the intake air 3 to both sides. In the example shown in FIGS. A guide 6 is arranged. As shown in FIGS. 1 (a) and 1 (b), this is a dust collection bag 100 in which two substantially square bag materials 100a and 100b are stacked and the periphery is welded to form a continuous sealing portion 44. Is folded at a broken line 51 shown by a one-dot chain line in FIG. 1 (a), and the form when used by separating the suction side bag wall 2 part and the suction port side bag wall 5 part in the front-rear direction shown in FIG. As shown in FIG. 2 and FIG.

  In such a dust collection bag 100, the suction air 3 sucked into the dust collection bag 100 through the suction port 1 and directed toward the suction side bag wall 2 facing the suction port 1 is applied to the broken line 51 of the airflow control guide 6. By diverting in the left-right direction parallel to the fold line 51 by the projecting portions 6g, the sharp projecting portions 6h, and the mountain-shaped projecting portions 6i in the orthogonal direction, the both sides of the lateral circumferential bag wall 4 of the horizontally long dust collecting bag 100 are provided. Along the suction side bag wall 5 side, and can be easily collected on the suction side bag wall 5 side of the wide lateral region 45 of the dust collection bag 100.

  It should be noted that the radius of curvature of the mountain-shaped protrusion 6i from the peak to the skirt is 10 to 90% of the diameter of the airflow control guide 6, and the height of the peak from the outer peripheral position of the guide surface 6d is 10 to 10 of the same diameter. 15% is good. As a specific example, the tendency of looking at the experimental data (a) of the ventilation pressure loss shown in FIG. 11 and the numerical data in the experimental result (a) of the air flow rate reduction rate shown in FIG. In view of the properties, the diameter is preferably 45 mm to 60 mm. Further, from the tendency of looking at the experimental result (b) of the ventilation pressure loss shown in FIG. 11 and the numerical data in the air flow rate reduction rate experimental result (b) shown in FIG. The curvature radius is preferably 5 to 40 mm, and the height is preferably 6 mm to 8 mm.

  As a result, the dust collection rate and the effect of preventing clogging of the suction side bag wall 2 can be enhanced while suppressing an increase in ventilation resistance. In this case, in the example shown in FIGS. 1 to 4, the front shape viewed from the guide surface 6 d side of the airflow control guide 6 is formed in a circular shape, but is close to the cross-sectional shape when the dust bag 100 is used. Alternatively, when a similar front shape is used, guidance by the diversion of the intake air 3 can be performed with the length of the guide surface 6 d proportional to the distance to the side circumferential bag wall 4.

In this sense, the circular front shape of the airflow control guide 6 shown in FIGS. 1 to 4 is changed to a horizontally long rectangle, ellipse, etc., and a guide surface 6d as shown in FIGS. 6A to 6E is adopted. You can also. The airflow control guide 6 may be arranged so that the axis of the guide surface 6d is inclined downward, for example, toward the suction port 1 side. As a result, the collection position at which the suction air 3 is diverted and reversed so as to be collected on the suction side in the dust bag 100 is deviated to the inclined side of the axis, for example, the lower side, and the side periphery. Sufficient ventilation to the upper side of the bag wall 4 can be ensured.

  Furthermore, the cross-sectional shape shown by the solid line in FIGS. 6B to 6E can be a guide surface 6d continuous around the central axis. Thereby, the advantageous shunting characteristic according to the shape of the guide surface 6d shown in FIGS. 6 (b) to 6 (e) is obtained with respect to the flat guide surface 6d shown in FIG. 6 (a). It will be demonstrated in the lap.

  FIG. 8 shows a diversion state of the intake air 3 when the cross-sectional shape of the example shown in FIG. 6D is a Mt. Fuji type guide surface 6d continuous around the central axis of the apex portion 6n. It is possible to increase the dust collection rate around the suction port 1 on the side of the suction side bag wall 5 and around the suction air 3 from the suction port 1.

  On the other hand, in the example shown in FIG. 9, the concave spiral helix 6d1 is formed on the Mt. Fuji type guide surface 6d of the example shown in FIG. 8, so that the guide surface 6d receives it on the side circumferential bag wall 4 around the axis. The direction of diverting the directed intake air 3 is twisted so as to be reversed as a swirl flow around the axis. As a result, while the separation of the dust 38 on the suction side bag wall 2 side due to the diversion of the suction air 3 and the centrifugal force at the time of reversal is suppressed, the collision angle with the side peripheral bag wall 4 is further suppressed and the dust 38 collides. Made it easier to avoid separation.

  Further, the dust collection rate on the suction side can be further increased by increasing the length of the path until the suction air 3 reaches the suction-side bag wall 5 after reversal by the amount corresponding to the swirling flow. Such a concave spiral 6d1 is effective when applied to any guide surface 6d in the case where the cross-sectional shapes of FIGS. 6B to 6E are continuous around the axis. Also in these cases, the same advantage as described above can be obtained by assuming that the front shape of the airflow control guide 6 is close to the cross section of the dust bag 100 or is similar or elliptical.

  When the front shape of the airflow control guide 6 is circular as in the illustrated example, the diameter of the airflow control guide 6 is sufficient as ± 15% of the diameter of the suction port 1 formed in the base paper 28 shown in FIG. Corresponding to the standard diameter of 52 mm, the airflow control guide 6 may have a diameter of 45 mm to 60 mm. However, if it is limited to the diameter of the suction port 1 or less, the air flow control guide 6 fits into the suction port 1 in the folded state where the bag materials 100a and 100b on the front and back sides are in close contact as shown in FIG. Since the volume of the dust bag 100 in the folded state does not increase or is not increased even if it is a three-dimensional shape, an appropriate number of sheets, for example, a set of three sheets, is set in a bag (not shown). It is advantageous for handling a plurality of other sheets, such as packing an appropriate number of sets, for example, 10 sets in one.

  As shown in FIG. 1, if the airflow control guide 6 is made smaller than the suction port 1, the airflow control guide is passed through the suction port 1 to a predetermined position of the suction side bag wall 2 of the dust collection bag 100 in a folded state. 6 can be postponed. Then, the adhesion peripheral portion 6 c exposed through the suction port 1 can be adhered to the suction side bag wall 2 of the dust collection bag 100 by welding or the like. In other words, the airflow control guide 6 can be disposed at a predetermined position on the suction side bag wall 2 in a retrofitting operation after the dust bag 100 is formed. This is advantageous for improvement of ready-made products, and a step of retrofitting the airflow control guide 6 is added to the dust collection bag 100 formed as usual without changing the production line of the ready-made products, or is performed separately. What is necessary is that there is an effect that a large-scale change of the production line and the production process becomes unnecessary.

  However, when constructing a dedicated production line, first, while continuously transporting long sheets from which the bag materials 100a and 100b are cut, a paper 28 having a suction port 1 on one side is fixed during the transport. At the same time, the air flow control guide 6 is attached at a constant pitch corresponding to the suction port 1 of the sticker 28 to be attached. After these steps, the long sheets are aligned so that the suction port 1 and the airflow control guide 6 face each other, and then the long sheets are sealed around the bag material 100a and 100b. A continuous dust collection bag 100 is formed.

  Finally, each dust bag 100 formed continuously can be cut into individual ones, or can be efficiently manufactured by punching. In this case, the front shape and size of the airflow control guide 6 are not limited by the relationship with the suction port 1. Further, by making the diameter of the airflow control guide 6 equal to or close to the diameter of the suction port 1, the suction port 1 becomes a positioning reference when the airflow control guide 6 is retrofitted, and the airflow control guide 6 It can be positioned at the attachment position by fitting.

  As described above, in the present embodiment, the mode in which the airflow control guide 6 is provided inside the dust bag 100 has been described, but the airflow control guide 6 faces the suction port 1 of the dust bag 100. For example, as shown in FIG. 6 (f), it may be provided outside the dust bag 100.

  As described above, the vacuum cleaner dust collection bag according to the present invention has a high dust collection rate, a high effect of preventing clogging of the suction side bag wall, and further suppresses the problem of exhaust odor caused by the collected dust. It can be applied to household and commercial vacuum cleaners.

DESCRIPTION OF SYMBOLS 1 Suction port 2 Suction side bag wall 2a Opposite area 3 Suction air 3a Inverted air flow 4 Side circumferential bag wall 5 Suction port side bag wall 6 Air flow control guide 6a Adhering area 6b Non-adhering area 6c Adhering peripheral part 6d Guide surface 6e Rising peripheral wall 6f Leg rib 6g Protruding part 6h Sharp protruding part 6i Mountain-like protruding part 6j Concave surface 6n Vertex part 7 Ventilation part (gap)
8 Exhaust port 21 Electric blower 22 Blower chamber 22a Partition wall 23 Dust collection chamber 24 Suction port 25 Hose connection port 27 Ventilation support part 28 Cover 29 Cover paper insertion part 30 Holding piece 31 Seal member 38 Dust 42 Rib 46 Floating space (space) )
100 Dust bag 200 Vacuum cleaner 300 Vacuum cleaner body 600 Powdered material 700 Silica gel particles

Claims (3)

A suction port through which suction air containing dust flows, a suction-side bag wall on the suction port side, a suction-side bag wall facing the suction port, and a space between the suction port and the suction-side bag wall The side peripheral bag wall to be formed and the inner surface of the suctioned side bag wall are configured to divert the suction air toward the side peripheral bag wall and to the suction port side bag wall along the side peripheral bag wall. An airflow control guide for generating a reverse airflow, and a peripheral portion of the airflow control guide is attached to a plurality of attachment regions provided intermittently on the suction side bag wall, and a gap is formed in the peripheral portion of the airflow control guide. And a powder material having a deodorizing effect and / or an antibacterial sterilizing effect stored in an inner surface of the suction side bag wall and the airflow control guide. Dust bag. The space formed by the inner surface of the suction side bag wall and the airflow control guide contains a material having a shape larger than the gap between the peripheral portions of the airflow control guide and lowering the ambient humidity such as silica gel. The dust bag for a vacuum cleaner as described. The vacuum cleaner provided with the dust-collecting bag for vacuum cleaners of Claim 1 or 2.

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