JP4844451B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a dust collection box of a vacuum cleaner.

There are two types of dust collection methods for conventional vacuum cleaners: one that uses disposable paper packs and the other that uses reusable dust collection boxes. Recently, vacuum cleaners that use economical dust collection boxes. Is increasing. Among these, a dust collection box having a simple structure includes a main body portion and a lid portion having a filter (see, for example, Patent Document 1).
JP 2005-237860 A

  However, in the configuration of the dust collection box of the conventional vacuum cleaner disclosed in Patent Document 1, the filter is configured to cover the entire rear surface of the dust collection box so as to prevent clogging due to dust adhesion. However, in actuality, the air sucked from the communication hole provided in the front of the dust collection box directly hits the filter and accumulates on the surface of the filter as it is, causing clogging with a certain amount of dust collection. There was a problem that.

  As a countermeasure, a method to prevent clogging by increasing the area of the filter by installing filters on the top and bottom and increasing the amount of dust collection has been proposed. There was a problem that the main body of the electric vacuum cleaner that accommodates it became larger and larger.

  The present invention solves the above-mentioned conventional problems, prevents clogging of the filter without enlarging the dust collection box, can effectively use the content of the dust collection box, and is equivalent to the conventional one. An object of the present invention is to provide a small vacuum cleaner that can reduce the size of the dust collection box while ensuring the amount of dust collection.

  In order to solve the above-described conventional problems, a vacuum cleaner according to the present invention includes a suction port provided at a front portion of a vacuum cleaner body, and a dust collection box storage portion that is located at a rear portion of the suction port and stores a dust collection box. And a vacuum cleaner comprising an electric blower disposed at the rear of the dust collection box housing, wherein the dust collection box has a communication hole for communicating with a hose inserted into the suction port; A lid having a filter that captures dust in the sucked air, a cylindrical portion extending toward the filter from the communication hole, and a cylinder movable along the outer peripheral axis of the cylindrical portion A body, a spring body that urges the cylinder body toward the filter, and a moving plate that receives the suction air and retracts the cylinder body against the urging force of the spring body when the suction air is received. Equipped with a suction sucked from the communication hole. Wind, in order to spread dispersed from between the cylindrical body and the filter, increasing the flow velocity in comparison with the case the tubular body is not, it is possible to blow off the dust attached to the filter effectively. Also, in the vacuum cleaner that controls the suction force of the electric blower, when the suction force is weak, the cylinder moves to the filter side by the biasing force of the spring body, so the air passage becomes narrower and the flow velocity becomes faster, Even when the suction force of the electric blower is weak, dust attached to the filter can be effectively blown off. Therefore, it becomes difficult to clog regardless of whether the suction force of the electric blower is strong or weak, the air permeability of the filter can be maintained longer than before, and the internal capacity of the dust collection box can be used effectively, It is possible to reduce the size of the dust collection box and thus the vacuum cleaner.

  The vacuum cleaner of the present invention includes a suction port provided at a front portion of a vacuum cleaner body, a dust collection box storage unit that is located at a rear part of the suction port and stores a dust collection box, and the dust collection box storage unit. In the vacuum cleaner provided with the electric blower disposed at the rear, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, and dust in the sucked air A lid having a filter that captures the filter, a cylindrical portion extending toward the filter from the communication hole, a plurality of extending portions rotatably provided at the tip of the cylindrical portion, and the extension When there is no extension part because it has a spring body that urges each of the extension parts to incline and the suction air sucked from the communication holes spreads and spreads from the gaps between the extension parts Compared to the flow rate, the dust adhering to the filter It is possible to blow off the results basis. In the case where the suction force control of the electric blower is performed, when the suction force is weak, the plurality of extending portions are in the inner direction of the communication hole, that is, the state in which the communication hole is narrowed. Even when the suction force of the electric blower is weak, the flow velocity increases, and dust attached to the filter can be blown off reliably. Therefore, it becomes difficult to clog regardless of whether the suction force of the electric blower is strong or weak, the air permeability of the filter can be maintained longer than before, and the internal capacity of the dust collection box can be used effectively, It is possible to reduce the size of the dust collection box and thus the vacuum cleaner body.

  The vacuum cleaner of the present invention includes a suction port provided at a front portion of a vacuum cleaner body, a dust collection box storage unit that is located at a rear part of the suction port and stores a dust collection box, and the dust collection box storage unit. In the vacuum cleaner provided with the electric blower disposed at the rear, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, and dust in the sucked air A lid having a filter that captures the filter, a cylindrical portion extending toward the filter from the communication hole, and a plurality of extending portions provided at the tip of the cylindrical portion and inclined inward. And the extension part is formed of a soft body, and the suction air sucked from the communication holes spreads and spreads from the gaps between the extension parts, so that the flow velocity increases compared to the case without the extension part. , Effectively blowing off dust adhering to the filter It can be. In addition, in the case where the suction force of the electric blower is controlled, when the suction force is strong, the extension part is expanded against the elastic force of the soft body. Can be surely blown away. In addition, when the suction force is weak, the plurality of extending portions are in a state in which the plurality of extending portions squeeze the inside of the communication hole, that is, the communication hole with elastic force. Even in the state, the flow rate increases, and the dust adhering to the filter can be blown off reliably. Therefore, it becomes difficult to clog regardless of whether the suction force of the electric blower is strong or weak, the air permeability of the filter can be maintained longer than before, and the internal capacity of the dust collection box can be used effectively, It is possible to reduce the size of the dust collection box and thus the vacuum cleaner body. In addition, since the extension portion is formed of a soft body and is operated in the same manner as the spring body due to its elasticity, the configuration and assembly can be simplified, and an inexpensive vacuum cleaner can be provided.

  The vacuum cleaner of the present invention makes it difficult for clogging to occur by blowing off dust adhering to the filter surface using suction air regardless of the suction force of the electric blower, and maintains the air permeability of the filter for a long time. Therefore, it is possible to provide a vacuum cleaner that can effectively use the content of the dust collection box.

  1st invention arrange | positions in the suction port provided in the front part of the vacuum cleaner main body, the dust collection box storage part which is located in the rear part of the said suction port, and accommodates a dust collection box, and the rear part of the said dust collection box storage part In the electric vacuum cleaner provided with the electric blower, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, and a filter for capturing dust in the sucked air A cylindrical body extending toward the filter side from the communication hole, a cylindrical body movable along the outer peripheral axis direction of the cylindrical part, and the cylindrical body attached to the filter side. A spring body that is energized, and a moving plate that receives the suction air and retracts the cylindrical body against the energizing force of the spring body when the suction air is received. The wind is dispersed from between the cylinder and the filter. To spread, increasing the flow velocity in comparison with the case the tubular body is not, it is possible to blow off the dust attached to the filter effectively. Also, in the vacuum cleaner that controls the suction force of the electric blower, when the suction force is weak, the cylinder moves to the filter side by the biasing force of the spring body, so the air passage becomes narrower and the flow velocity becomes faster, Even when the suction force of the electric blower is weak, dust attached to the filter can be effectively blown off. Therefore, it becomes difficult to clog regardless of whether the suction force of the electric blower is strong or weak, the air permeability of the filter can be maintained longer than before, and the internal capacity of the dust collection box can be used effectively, It is possible to reduce the size of the dust collection box and thus the vacuum cleaner.

  The second invention, in particular, comprises the tip of the cylindrical body of the first invention with a plurality of extending portions, and can blow off dust adhering to the filter regardless of the strength of the suction force of the electric blower, In addition, since there is a gap between adjacent extending portions, a large amount of dust can be sucked without being caught in the cylinder.

  In the third aspect of the invention, in particular, the extension portion of the first or second aspect of the invention is inclined to the inside of the communication hole, and the suction air is restricted by the inclined extension portion. This makes it easier to blow away dust adhering to the filter.

  4th invention arrange | positions in the suction port provided in the front part of the vacuum cleaner main body, the dust collection box storage part which is located in the rear part of the said suction port, and accommodates a dust collection box, and the rear part of the said dust collection box storage part In the electric vacuum cleaner provided with the electric blower, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, and a filter for capturing dust in the sucked air Each of the extending portion, a cylindrical portion extending toward the filter side from the communication hole, a plurality of extending portions rotatably provided at the tip of the cylindrical portion, and the extending portions Since the suction air sucked from the communicating holes spreads and spreads from the gaps between the extension parts, the flow velocity is higher than when there is no extension part. And effectively blow off the dust adhering to the filter. Succoth can. In the case where the suction force control of the electric blower is performed, when the suction force is weak, the plurality of extending portions are in the inner direction of the communication hole, that is, the state in which the communication hole is narrowed. Even when the suction force of the electric blower is weak, the flow velocity increases, and dust attached to the filter can be blown off reliably. Therefore, it becomes difficult to clog regardless of whether the suction force of the electric blower is strong or weak, the air permeability of the filter can be maintained longer than before, and the internal capacity of the dust collection box can be used effectively, It is possible to reduce the size of the dust collection box and thus the vacuum cleaner body.

  5th invention arrange | positions in the suction port provided in the front part of the vacuum cleaner main body, the dust collection box storage part which is located in the rear part of the said suction port, and accommodates a dust collection box, and the rear part of the said dust collection box storage part In the electric vacuum cleaner provided with the electric blower, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, and a filter for capturing dust in the sucked air A lid body having a cylindrical portion extending toward the filter from the communication hole, and a plurality of extending portions provided at the tip of the cylindrical portion and inclined inward, The extension part is made of a soft material, and the suction air sucked from the communication holes spreads and spreads from the gaps between the extension parts, so the flow velocity increases compared to the case without the extension part and adheres to the filter. Can effectively blow off the dust. In addition, in the case where the suction force of the electric blower is controlled, when the suction force is strong, the extension part is expanded against the elastic force of the soft body. Can be surely blown away. In addition, when the suction force is weak, the plurality of extending portions are in a state in which the plurality of extending portions squeeze the inside of the communication hole, that is, the communication hole with elastic force. Even in the state, the flow rate increases, and the dust adhering to the filter can be blown off reliably. Therefore, it becomes difficult to clog regardless of whether the suction force of the electric blower is strong or weak, the air permeability of the filter can be maintained longer than before, and the internal capacity of the dust collection box can be used effectively, It is possible to reduce the size of the dust collection box and thus the vacuum cleaner body. In addition, since the extension portion is formed of a soft body and is operated in the same manner as the spring body due to its elasticity, the configuration and assembly can be simplified, and an inexpensive vacuum cleaner can be provided.

  The sixth aspect of the invention is, in particular, the filter according to any one of the first to fifth aspects, a thin plate-like filter arranged on the upstream side and capturing coarse dust, and a fine dust arranged on the downstream side. The dust filter attached to the surface is easily blown away by making the coarse filter on the upstream side into a thin plate-like plane.

  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)
The vacuum cleaner in the 1st Embodiment of this invention is demonstrated using FIGS. 1-4. FIG. 1 is a perspective view of a vacuum cleaner in the present embodiment, FIG. 2 is a cross-sectional view of a main part of a vacuum cleaner body of the vacuum cleaner, and FIG. 3 is an external perspective view of a dust collection box of the vacuum cleaner. FIG. 4 is a cross-sectional view of the main part of the electric vacuum cleaner.

  1 to 4, the vacuum cleaner 101 includes a vacuum cleaner body 1, a hose 103 connected to the suction port 2 provided in front of the vacuum cleaner body 1, and a connection pipe 104 provided at the tip of the hose 103. The extension pipe 105 connected to the connection pipe 104 and the suction tool 106 provided at the tip of the extension pipe 105 and having an opening (not shown) for sucking dust are sucked into the cleaner body 1. An electric blower 107 for collecting the dust and a dust collection box 8 for collecting dust are incorporated.

  As shown in the figure, the vacuum cleaner main body 1 includes a dust collection box storage 3 having a suction port 2 at the front and an electric blower chamber (not shown) having an electric blower 107 at the rear. Includes an air tight packing A4 for the vacuum cleaner main body 1 and the hose 103. Moreover, the upper part of the dust collection box storage part 3 is in an open state, and has a packing B5 around the entire upper end of the open part. Reference numeral 6 denotes a dust collection box storage lid that is provided on the vacuum cleaner main body 1 so as to be rotatable about its rear part as a fulcrum, and covers the upper opening of the dust collection box storage 3. The dust collection box storage section lid 6 has a tight rib 7 that is substantially in the same shape as the packing B5 and is in tight contact with the packing B5 when the dust collection box storage section lid 6 is closed. Yes. A dust collection box 8 is detachably accommodated in the dust collection box storage unit 3.

  The dust collection box 8 is provided with a communication hole 9 in the front, and a thin plate-like coarse dust formed in a mesh or porous so as to cover a main body 10 having a rear opening and a rear opening of the main body 10. A lid A12 that forms the filter 11 and a lid B14 that forms a fine dust filter 13 that is pleated downstream of the lid 11 are rotatably held by the main body 10 via a hinge that will be described later. Further, a brush 108 for cleaning fine dust attached to the fine dust filter 13 is detachably provided in a storage portion 109 provided in the main body portion 10.

  Further, a cylindrical portion 31 is led out inward in the communication hole 9 of the dust collection box 8, and a cylindrical body 32 </ b> A is removed from the outer periphery of the cylindrical portion 31 by a claw 31 </ b> A provided in the cylindrical portion 31. The cylindrical portion 31 is fixed so as to be movable in the axial direction.

  32B is a moving plate that is located at a substantially central portion on the inner peripheral side of the cylindrical portion 31 and is connected to the cylindrical body 32A via a rotatable arm 32C.

  The cylindrical body 32A and the moving plate 32B are urged by the spring body 32D so that the cylindrical body 32A moves toward the coarse dust filter 11 while the suction of the electric blower 107 is not in a wind state.

  Furthermore, a plurality of extended tongue-shaped extending portions 32 are provided at the tip of the cylindrical body 32A.

  On the other hand, on the upstream side of the coarse dust filter 11 provided in the lid A12, a convex portion 34 is provided at a position facing the communication hole 9 when closed. The convex portion 34 includes a circular wind receiving portion 33 having substantially the same diameter as that of the communication hole 9 in order to disperse the suction air from the communication hole 9, and an upper and lower portion whose cross section protrudes from the wind receiving portion 33 in a divergent shape. It is comprised from the vertically long rib 35 extended in this.

  Further, the rotation shaft portion 12a of the lid body A12 and the rotation shaft portion 14a of the lid body B14 are locked to the shaft portion 15 of the main body portion 10 by a concentric shaft. Further, the lid body A12 and the lid body B14 are fixed to the main body portion 10 when the claw 17 of the main body portion 10 is hooked on the locking portion 16, and are in a form in use.

  At this time, the main body 10 and the lid B14 are airtight by the tight packing A18 formed before and after the outer periphery of the lid A12. The air tightness between the dust collection box 8 and the dust collection box storage portion 3 is tightened by the packing A4 and the main body portion 10 on the front side and the tight packing B19 formed on the lid B14 and the wall of the dust collection box storage portion 3 on the rear side. It is a thing. The tight packing A18, the tight packing B19, and the packing A4 are components used as a tight configuration, and can be configured to be tight even if they are configured as any of the components that the respective packings contact.

  About the vacuum cleaner comprised as mentioned above, the operation | movement and an effect | action are demonstrated below.

  As shown in FIGS. 2 and 4, the dust passes through the suction port 2 and the communication hole 9 and reaches the main body 10 of the dust collection box 8 by the suction air of the electric blower 107. Thereafter, the dust coarse dust 23 is collected by the mesh or porous dust filter 11 formed on the lid A12. Air containing fine dust passes through the coarse dust filter 11 formed in a mesh or porous, and then fine dust 24 is collected by the fine dust filter 13 pleated on the lid B14, and only air is collected. The electric blower 107 is discharged out of the cleaner body 1 through an electric blower chamber (not shown) that houses the electric blower 107.

  In such a dust collection process, the suction air sucked from the communication hole 9 straightly advances straight from the first air stream that collides with the convex portion 34 and disperses, and the gap 36 between the extension portions 32. It is divided into a second air stream to be diffused. And the coarse dust adhering to the surface of the coarse dust filter 11 is blown off by these two air currents. In particular, since the extension portion 32 is provided and blown out through the gap 36 therebetween, the flow velocity increases, and further, since it flows in the direction of diffusion in the circumferential direction of the communication hole 9, it is possible to blow off coarse dust more effectively. it can. The gap 36 of the extension part 32 can prevent clogging when large dust is sucked in addition to increasing the flow velocity.

  Furthermore, the vacuum cleaner in the present embodiment is configured such that the user can freely select the suction force such as “strong”, “medium”, and “weak”. This difference in suction force affects the flow velocity when the suction air passes through the extending portion 32 described above, and “strong” means the surface of the coarse dust filter 11 because the suction force is strong and the flow velocity is high. The effect of blowing off the coarse dust adhering to is high. On the contrary, in the case of “weak”, the suction force is weak and the flow rate is slowed down, and the effect of blowing off the coarse dust adhering to the surface of the coarse dust filter 11 is reduced. Thus, when the suction force is strong, strong wind hits the moving plate 32B and moves the cylindrical body 32A to the side where the gap with the coarse dust filter 11 becomes larger, and conversely when the suction wind is weak, the moving plate 32B. As a result, the urging force of the spring body 32D is won and the cylindrical body 32A moves toward the coarse dust filter 11, that is, in the direction in which the gap with the coarse dust filter 11 is reduced.

  In this way, it is possible to adjust the flow path of the wind by the strength of the suction wind and maintain a constantly high flow velocity, and the effect of blowing off the coarse dust attached to the surface of the coarse dust filter 11 in any suction force state. Can maintain a high state.

  As described above, according to the present embodiment, the dust adhering to the coarse filter 11 can be efficiently blown in any suction force state, so that clogging is difficult to occur, and the coarse filter 11 The air permeability can be maintained longer than before, and coarse dust is deposited almost uniformly on each part of the dust collection box, so that much of the internal capacity can be used effectively.

(Embodiment 2)
FIG. 5 shows a cross-sectional view of a main part of the electric vacuum cleaner according to the second embodiment of the present invention. In addition, about the same part as the vacuum cleaner in the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the present embodiment, a cylindrical portion 41 extends from the communication hole 9 of the dust collection box 8 toward the coarse dust filter 11, and a plurality of rotatable extending portions 42 are provided at the tip of the cylindrical portion 41. Each of the provided and extended portions 42 is urged toward the inside of the communication hole 9 by the spring body 42A, and the other configuration is the same as that of the electric vacuum cleaner in the first embodiment.

  The operation and action of the vacuum cleaner in the present embodiment configured as described above are as follows.

  When the vacuum cleaner is operated at “strong”, the extended portion 42 rotates outwardly against the urging force of the spring body 42A due to strong wind pressure, but the suction force is strong and the flow speed is high. Moreover, the coarse dust adhering to the surface of the coarse dust filter 11 is blown off efficiently. On the contrary, when the vacuum cleaner is operated at “weak”, the wind pressure applied to the extending portion 42 is reduced, and the extending portion 42 is rotated inward by the urging force of the spring body 42A. The flow rate of the air blown from the tip of the portion 42 increases, and the coarse dust adhering to the surface of the coarse filter 11 is efficiently blown away.

  As described above, according to the present embodiment, the configuration such as the moving plate 32B of the first embodiment is not required near the approximate center of the communication hole 9, and the suction air and dust flow smoothly. Dust is inhaled.

  In addition, the extending portion 32 is formed of a soft body such as rubber, and is provided so as to be inclined inward, so that it is possible to perform the same operation as the spring body 42A due to the elasticity of the soft body. The body 42A can be eliminated, the construction and assembly can be further simplified, and an inexpensive electric vacuum cleaner can be provided.

  As described above, the vacuum cleaner according to the present invention is less likely to be clogged by efficiently blowing dust adhering to the filter by the suction air regardless of the strength of the suction air, and the air permeability of the filter is higher than the conventional one. It can be maintained for a long time, and is particularly useful for household and commercial vacuum cleaners.

The perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Cross section of the main part of the main body of the vacuum cleaner External perspective view of dust collection box of the vacuum cleaner (A) Main part sectional view of the dust collection box when the vacuum cleaner is not in operation, (b) Main part sectional view of the dust collection box during the suction operation of the vacuum cleaner Sectional drawing of the principal part of the vacuum cleaner in Embodiment 2 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Suction port 3 Dust collection box storage part 8 Dust collection box 9 Communication hole 10 Main part 11 Coarse dust filter (filter)
12 Lid A (lid)
13 Fine dust filter
14 Lid B (Lid)
23 Coarse dust 24 Fine dust 31 Cylindrical part 32, 42 Extension part 32A Cylindrical body 32B Moving plate 32D, 42A Spring body 33 Wind receiving part 34 Convex part 35 Vertically long rib 103 Hose 107 Electric blower

Claims (6)

A suction port provided at the front of the vacuum cleaner body, a dust collection box storage unit that is located at the rear of the suction port and stores a dust collection box, and an electric blower disposed at the rear of the dust collection box storage unit In the vacuum cleaner, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, a lid body having a filter that captures dust in the sucked air, A cylindrical portion extending toward the filter side from the communication hole, a cylindrical body movable along the outer peripheral axis direction of the cylindrical portion, and a spring body that urges the cylindrical body toward the filter side, An electric vacuum cleaner comprising a moving plate that receives suction air and retracts the cylindrical body against the biasing force of the spring body when receiving the suction air. The electric vacuum cleaner according to claim 1, wherein the tip of the cylindrical body is composed of a plurality of extending portions. The electric vacuum cleaner according to claim 1 or 2, wherein the extending portion is provided to be inclined toward the inside of the communication hole. A suction port provided at the front of the vacuum cleaner body, a dust collection box storage unit that is located at the rear of the suction port and stores a dust collection box, and an electric blower disposed at the rear of the dust collection box storage unit In the vacuum cleaner, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, a lid body having a filter that captures dust in the sucked air, A cylindrical portion extending toward the filter from the communication hole, a plurality of extending portions rotatably provided at the tip of the cylindrical portion, and each of the extending portions are inclined inward. A vacuum cleaner characterized by having a spring body that biases the spring. A suction port provided at the front of the vacuum cleaner body, a dust collection box storage unit that is located at the rear of the suction port and stores a dust collection box, and an electric blower disposed at the rear of the dust collection box storage unit In the vacuum cleaner, the dust collection box has a main body portion having a communication hole for communicating with a hose inserted into the suction port, a lid body having a filter that captures dust in the sucked air, A cylindrical portion extending toward the filter from the communication hole; and a plurality of extending portions provided at the tip of the cylindrical portion and inclined inward, the extending portion being a soft body A vacuum cleaner characterized by being formed by 6. The filter according to claim 1, wherein the filter is formed of a thin dust filter that is disposed upstream and captures coarse dust, and a fine dust filter that is disposed downstream and captures fine dust. The vacuum cleaner as described in.

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