JP5494239B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner.

  Conventionally, regarding the discharge of exhaust air from a vacuum cleaner, “the exhaust port 26 is provided at the bottom of the side wall of the cover body 22, and the exhaust air discharged from the electric blower 3 is discharged from the exhaust port 26. 22, a technique is proposed in which the exhaust gas passes through an exhaust passage 27 formed by a space between the bottom of the body 22 and the inner wall of the lower body 7 and is discharged outside the exhaust grid 28 provided at the rear of the upper body 8 (for example, Patent Document 1).

Japanese Patent No. 4203633 (6th page, FIG. 1)

  However, in the prior art described in Patent Document 1, the internal structure of the vacuum cleaner is visible from the outside through a large number of exhaust holes constituting the exhaust lattice. For this reason, in order to enhance the design, it is necessary to perform blinding by arranging a filter or the like inside the exhaust hole so that the internal structure cannot be seen from the outside.

  Moreover, in the said patent document 1, the wind speed of the exhaust_gas | exhaustion discharged | emitted from many exhaust holes was not considered. For this reason, the exhaust air speed exhausted from the exhaust hole is high, which causes noise.

  The present invention has been made to solve the above problems, and provides a vacuum cleaner that can improve the design of the appearance of the exhaust hole and can reduce the exhaust air speed.

An electric vacuum cleaner according to the present invention includes an electric blower that generates a suction force, a main body case including the electric blower, a suction path for air sucked by the suction force of the electric blower, and the suction path. A dust collecting portion for collecting dust contained in the sucked air; a main body exhaust hole provided in the main body case for exhausting air sucked by the electric blower to the outside; and the main body exhaust hole outside the main body exhaust hole. An exhaust cover that covers the exhaust cover, a cover exhaust hole provided in the exhaust cover,
When the cover exhaust hole is viewed perpendicularly to the surface on which the main body exhaust hole is formed,
The exhaust cover is provided at a position not overlapping with the main body exhaust hole, and the exhaust cover is made of a material harder than the main body case .

  The vacuum cleaner according to the present invention includes an exhaust cover that covers a main body exhaust hole that blows out the exhaust from the main body case from the outside, and the exhaust cover is viewed when viewed perpendicular to the surface provided with the main body exhaust hole. A cover exhaust hole was provided at a position not overlapping with the main body exhaust hole. For this reason, since it becomes difficult to see the inside of a main body case from the outer side of a main body case, designability can be improved. Further, since the exhaust discharged from the main body exhaust hole is exhausted from the cover exhaust hole after the wind speed is reduced inside the exhaust cover, noise associated with the exhaust can be reduced.

It is an external appearance perspective view of the vacuum cleaner which concerns on embodiment. It is a perspective view of the vacuum cleaner main body of the electric vacuum cleaner of FIG. It is a perspective view which shows the state which removed the dust collection unit from the cleaner body of FIG. It is a top view of the cleaner body of FIG. It is a perspective view of the cleaner main body of FIG. 1, and a figure which decomposes | disassembles and shows a main body pipe. It is a top view which shows the state which removed the dust collection unit of the cleaner body of FIG. It is a figure which shows the state which removed the main body pipe in the BB arrow cross section of the cleaner body shown in FIG. It is a figure which shows the state which removed the main body pipe in the CC arrow cross section of the cleaner body shown in FIG. It is CC sectional view schematic drawing of the cleaner body shown in FIG. It is a figure which expands and shows the principal part of FIG. It is a figure explaining shaping | molding using the metal mold | die of the main body pipe which concerns on embodiment. It is an AA arrow cross-sectional schematic diagram of the cleaner body shown in FIG. It is a figure which shows the state which removed the dust collection unit in the AA arrow cross section of the cleaner body shown in FIG.

  Hereinafter, a vacuum cleaner according to an embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a case where the present invention is applied to a cyclone type vacuum cleaner will be described as an example.

Embodiment.
FIG. 1 is an external perspective view of a vacuum cleaner according to the present invention. As shown in FIG. 1, the vacuum cleaner 100 includes a suction tool 1, an extension pipe 2, a hand hose 3, a hose 4, and a cyclone cleaner body 5. The suction tool 1 sucks dust on the floor and dust-containing air (air containing dust). One end of a straight cylindrical extension pipe 2 is connected to the outlet side of the suction tool 1. The other end of the extension pipe 2 is connected to one end of a hand hose 3 provided with a handle provided with an operation switch 8 for controlling the operation of the vacuum cleaner 100. One end of a flexible bellows-like hose 4 is connected to the other end of the hand hose 3. Furthermore, the vacuum cleaner main body 5 is connected to the other end of the hose 4. A wheel 6 is provided at the rear portion of the cleaner body 5, and the cleaner body 5 is movable by a front caster (not shown) and a wheel 6 provided on the front lower surface of the cleaner body 5. A power cord 7 is connected to the cleaner body 5. When the power cord 7 is connected to an external power source, electricity is supplied, and the electric blower 80 (see FIG. 7) is driven to perform a suction operation. The suction tool 1, the extension pipe 2, the hand hose 3, and the hose 4 constitute a part of a suction path for allowing dust-containing air to flow into the cleaner body 5 from the outside to the inside.

  2 is a perspective view of the cleaner body 5 of FIG. 1, FIG. 3 is a perspective view showing a state in which the dust collecting unit 20 of the cleaner body of FIG. 1 is removed, and FIG. 4 is a plan view of the cleaner body of FIG. is there. In addition, the arrow 110 shown in FIG. 4 has shown typically the locus | trajectory of the air taken in into the cleaner body 5. FIG. As shown in FIGS. 2 to 4, the cleaner body 5 includes a body case 10, a dust collection unit 20, an exhaust unit 50, a substantially cylindrical body pipe 60, and a cover filter 70. The dust collection unit 20 corresponds to a dust collection unit of the present invention, and is arranged in parallel with the primary cyclone separator 30 and the primary cyclone separator 30 and connected to the downstream side of the primary cyclone separator 30. And a secondary cyclone separator 40.

The main body case 10 constituting the outer shell of the cleaner body 5 has a lower case 11 that opens at the top and accommodates the electric blower 80 (see FIG. 7) and various control boards (not shown), and an opening in the lower case. The upper case 12 to cover and the hose connection port 13 which can connect the hose 4 are provided. The hose connection port 13 is an inlet for air sucked into the cleaner body 5 and corresponds to the suction port of the present invention. The upper surface of the upper case 12 is configured to have a shape on which the dust collection unit 20 can be placed. The upper surface of the main body case 10 is inclined so that the height gradually increases from the front side (the hose connection port 13 side) toward the rear side.
In addition, a screw boss 17 is provided on the inclined upper surface of the main body case 10 so as to stand substantially vertically (see FIGS. 7 to 10).

  The main body pipe 60 is made of various resins and has a function of connecting the hose connection port 13 to which the hose 4 is connected and the dust collection unit 20. The inlet side end of the main body pipe 60 is connected to the hose connection port 13, and a dust collection unit connection port 641 is opened at the other end of the main body pipe 60. The main body pipe 60 is placed on the main body case 10 along the longitudinal direction of the substantially cylindrical dust collection unit 20.

  FIG. 5 is a perspective view of the cleaner main body 5 and a state in which the main body pipe 60 is detached from the cleaner main body 5 and disassembled. As shown in FIG. 5, the main body pipe 60 includes an inflow end part 61, a connection part 62, a tubular part 63, and a discharge end part 64. The inflow end part 61 has an inflow port 611 that is connected to the hose connection port 13 and allows air to flow into the main body pipe 60. The cylindrical part 63 is disposed along the side of the dust collection unit 20. The connection part 62 connects the inflow end part part 61 and the cylinder part 63 which are arranged in the direction of 90 ° in the present embodiment. The discharge end part 64 includes a dust collection unit connection port 641 for allowing air to flow into the dust collection unit 20. The dust collection unit connection port 641 is connected to the primary inlet 31 of the primary cyclone separator 30.

  Next, a structure for attaching the main body pipe 60 to the main body case 10 will be described. FIG. 6 is a plan view showing a state in which the dust collection unit 20 is removed from the cleaner body 5. FIG. 7 is a schematic cross-sectional view taken along the line BB in FIG. 6 and shows a state where the main body pipe 60 is removed. FIG. 8 is a schematic cross-sectional view taken along the line CC in FIG. 6 and shows a state in which the main body pipe 60 is removed. FIG. 9 is a schematic cross-sectional view of the cleaner body 5 shown in FIG. FIG. 10 is an enlarged view of the main part of FIG. 9, and shows the peripheral part of the fixed base 65.

  The main body pipe 60 is provided with a fixing base 65 for attaching the main body pipe 60 to the inclined upper surface of the main body case 10. In the present embodiment, the fixing base 65 extends in a tongue shape from the outer wall of the discharge end part 64, and is provided with a fixing hole 68 for inserting a screw 67.

  The pipe fixing auxiliary component 66 has a substantially rectangular tube shape and is provided with a screw hole 66a through which a screw 67 can be passed on its upper surface. The size of the screw hole 66a is such a size that the head of the screw 67 cannot pass. The shape of the inner wall of the cylindrical portion 66b constituting the side surface of the pipe fixing auxiliary component 66 is substantially the same as the shape of the outer wall of the screw boss 17, and the screw boss 17 can be inserted into the cylindrical portion 66b.

  When the main body pipe 60 configured in this way is attached to the main body case 10, the main body pipe 60 is placed on the upper surface of the main body case 10 so that the screw boss 17 is passed through the fixing hole 68 of the fixing base 65. Then, the pipe fixing auxiliary component 66 having the screw hole 66a is placed on the screw boss 17, the screw 67 is inserted into the screw boss 17 through the screw hole 66a, and the screw 67 is tightened. By doing in this way, the main body pipe 60 can be attached to the inclined upper surface of the main body case 10.

Next, the reason why the pipe fixing auxiliary component 66 is provided to attach the main body pipe 60 will be described. Prior to this, an example of forming the main body pipe 60 will be described.
FIG. 11 is a view for explaining a molding example of the main body pipe 60 according to the present embodiment using a mold. In order to explain mainly the structure of the fixing base 65, only the discharge end part 64 provided with the fixing base 65 is shown in FIG. 11A is a side view of the discharge end part 64, and FIG. 11B is a schematic cross-sectional view taken along the line DD of FIG. 11A. Is described for illustrative purposes.

  Since the discharge end part 64 of the main body pipe 60 has a substantially cylindrical shape, the mold X and the mold Y for manufacturing the discharge end part 64 have a substantially central position of the discharge end part 64 and a mating surface. It is comprised so that it may become. Then, the resin is poured into the gap between the mold X and the mold Y, and when the resin hardens, the mold X and the mold Y are in the directions of arrows x and y shown in FIG. 11B, respectively. The discharge end part 64 can be taken out from the mold X and the mold Y.

Here, in order not to hinder the movement of the mold X and the mold Y, the mold and the product are configured so that there is no under part (hook part) in the moving direction of the mold X and the mold Y. This is preferable in order to simplify the manufacturing process. In the present embodiment, the screw boss 17 of the main body case 10 extends in the vertical direction, and the screw 67 is inserted into the fixing hole 68 in the vertical direction, while the main body pipe 60 is attached to the inclined upper surface of the main body case 10. Therefore, in order to prevent the under part from occurring, it is necessary to open the fixing hole 68 with respect to the diameter of the screw 67. On the other hand, when the opening diameter of the fixing hole 68 is increased, the head of the screw 67 is pulled out into the fixing hole 68 and the screw 67 cannot be fixed to the fixing base 65.
Therefore, a pipe fixing auxiliary component 66 is provided so that the screw 67 can be fixed to the fixing base 65. By providing the pipe fixing auxiliary component 66, the mold and the main body pipe 60 can be configured so as not to have an under portion, and the main body pipe 60 can be fastened to the inclined upper surface of the main body case 10.

  Next, the dust collection unit 20 constituted by the primary cyclone separator 30 and the secondary cyclone separator 40 will be described. As shown in FIGS. 2 to 4, the primary cyclone separator 30 includes a primary inlet 31, a primary swirl chamber 32, and a primary dust collection chamber 33 as main components. The primary inlet 31 is an inlet for dust-containing air to the primary cyclone separator 30 and is connected to a dust collection unit connection port 641 opened at the downstream end of the main body pipe 60. The secondary cyclone separating apparatus 40 includes a secondary inlet 41, a secondary swirl chamber 42, a secondary dust collection chamber 43, and a secondary discharge port 44 as main components.

  The primary cyclone separator 30 has a roughly cylindrical shape, and is introduced from the primary inlet 31 by connecting the primary inlet 31 that takes in the dust-containing air from the main body pipe 60 and the primary inlet 31 approximately tangentially. And a primary swirl chamber 32 in which the dust-containing air swirls. The primary swirl chamber 32 is configured by a substantially cylindrical cylindrical portion and a substantially conical cone portion provided substantially coaxially therein. The air flowing in from the primary inlet 31 swirls in the primary swirl chamber 32 and separates dust. A primary dust collection chamber 33 that communicates with the primary swirl chamber 32 through an opening provided at the bottom of the primary swirl chamber 32 is provided at the lower portion of the primary swirl chamber 32. The primary swirl chamber 32 and the primary dust collection chamber 33 are detachably attached to each other. In addition, a primary exhaust pipe (not shown) for guiding the exhaust from the primary cyclone separator 30 to the secondary cyclone separator 40 is provided.

  The secondary cyclone separator 40 has a roughly cylindrical shape, and is connected to the secondary inlet 41 that takes in the dust-containing air from the primary cyclone separator 30 and the secondary inlet 41 approximately in the tangential direction. And a secondary swirl chamber 42 in which the dust-containing air introduced from the secondary inlet 41 is swirled. After the air flowing in from the secondary inlet 41 is swirled to separate the dust, the air is discharged from the secondary discharge port 44. To do. The secondary swirl chamber 42 of the secondary cyclone separating apparatus 40 includes a substantially conical cone portion inside a substantially cylindrical cylindrical portion. A secondary dust collection chamber 43 communicating with the secondary swirl chamber 42 through an opening provided at the bottom of the secondary swirl chamber 42 is provided below the secondary swirl chamber 42. The secondary swirl chamber 42 and the secondary dust collection chamber 43 are detachably attached to each other. In addition, a secondary discharge pipe 45 that guides exhaust from the secondary discharge port 44 to the cover filter 70 is provided. As shown in FIG. 4, the secondary discharge pipe 45 is configured to be bent toward the main body case 10 at a substantially right angle outside the secondary swirl chamber 42.

  The dust collection unit 20 is integrally formed of a material such as a resin in a state where the substantially cylindrical primary cyclone separation device 30 and secondary cyclone separation device 40 configured as described above are arranged side by side. For this reason, the external shape of the dust collecting unit 20 is roughly an elliptical cylindrical shape in the section AA shown in FIG. Note that the outer shape of the dust collection unit 20 is not limited to this embodiment, and may be, for example, a rectangular tube shape with rounded corners or a cylindrical shape.

The dust collection unit 20 is detachably fixed to the upper surface of the main body case 10 inclined so as to gradually increase from the front side (hose connection port 13 side) toward the rear side by a dust collection unit fixing member 22. . In the present embodiment, the dust collection unit fixing member 22 is configured to fix the dust collection unit 20 to the main body case 10 by sandwiching a part of the main body case 10 and a part of the dust collection unit 20. However, the configuration for fixing the dust collection unit 20 is not limited to this.
By removing the dust collection unit 20 from the main body case 10 and further removing the primary dust collection chamber 33 and the secondary dust collection chamber 43, the dust accumulated in these dust collection chambers can be discarded.

  The cover filter 70 is installed in a path from the dust collection unit 20 to the main body case 10 and collects dust contained in the air discharged from the dust collection unit 20. The cover filter 70 includes a cover 71 that is attached to the upper portion of the upper case 12 and holds the filter 73 (see FIG. 7), and a cover opening 72 for allowing air to flow into the cover 71. Dust contained in the air flowing in from the cover opening 72 is collected in the cover 71 by the filter 73 (see FIG. 7).

  The exhaust unit 50 is located on the downstream side of the dust collection unit 20 and has a function of discharging the air that has flowed into the cleaner body 5 to the outside of the cleaner body 5.

  Next, the exhaust unit 50 according to the present embodiment and the configuration around it will be described. 12 and 13 are schematic cross-sectional views taken along line AA of the cleaner body 5 shown in FIG. 4, and FIG. 13 shows a state in which the dust collection unit 20 is removed. In FIG. 12 and FIG. 13, the characteristic portions are mainly described, and the other portions are only outlined. The exhaust unit 50 includes a plurality of main body exhaust holes 51, an exhaust cover 52 that covers the main body exhaust holes 51 from the outside, and a plurality of cover exhaust holes 53 provided in the exhaust cover 52.

  A plurality of main body exhaust holes 51 are formed along the longitudinal direction of the dust collection unit 20 and at substantially symmetrical positions with respect to the main body pipe 60 around the dust collection unit 20. In the present embodiment, a main body exhaust hole 51 is formed in the exhaust surface 15 which is a part of a raised portion 16 described later.

  The exhaust cover 52 covers the main body exhaust hole 51 provided in the exhaust surface 15 of the raised portion 16. The exhaust cover 52 has a semi-cylindrical shape in which the cylinder is divided in half, and is arranged so that the arc portion is on the top. The inside of the exhaust cover 52 is a cavity. A plurality of cover exhaust holes 53 are formed on the arc surface of the exhaust cover 52. The exhaust cover 52 is made of a hard material having a higher strength against collision than the main body case 10.

  As shown in FIGS. 12 and 13, a part of the upper surface of the main body case 10 is raised, and this raised portion is referred to as a raised portion 16. The raised portion 16 is formed along the longitudinal direction of the dust collection unit 20 and at a substantially symmetrical position with the main body pipe 60 around the dust collection unit 20. The raised portion 16 is composed of a cylindrical side surface portion 14 constituting a side wall and an exhaust surface 15 constituting an upper surface. The cylindrical side surface portion 14 bulges outward and has a substantially arc shape in cross section. The exhaust surface 15 is configured by a plane that connects the upper end portions of the cylindrical side surface portions 14 on both sides, and is inclined so that the outside becomes lower when viewed from the cross-sectional direction of the cleaner body 5.

  In the present embodiment, the height of the raised portion 16 is configured such that the height of the exhaust cover 52 is substantially the same as the height of the main body pipe 60 when the semi-cylindrical exhaust cover 52 is attached. . The diameter of the exhaust cover 52 is configured to be substantially the same as the diameter of the main body pipe 60. Further, when the exhaust cover 52 is placed on the raised portion 16, the exhaust cover 52 and the raised portion 16 are combined to form a substantially cylindrical outer shape. That is, when the vacuum cleaner main body 5 is viewed from the upper surface, the substantially cylindrical main body pipe 60 and the exhaust cover 52 are disposed on the left and right sides of the dust collecting unit 20, so that the appearance of the vacuum cleaner main body 5 is balanced on the left and right. Good design.

  The inner coupling portion P viewed from the cross-sectional direction of the exhaust cover 52 and the raised portion 16 is configured to be below the dust collection unit 20 when the dust collection unit 20 is viewed from the upper surface. That is, assuming a vertical line 111 that is in contact with the side end of the dust collecting unit 20 as shown in FIGS. 12 and 13, the joint portion between the raised portion 16 and the exhaust cover 52 is located on the inner side of the vertical line 111. P is located. For this reason, when the vacuum cleaner main body 5 is viewed from directly above, the outer shell of the dust collecting unit 20 serves as a shield so that the joint portion P inside the raised portion 16 and the exhaust cover 52 cannot be seen.

  Next, the relationship between the main body exhaust hole 51 and the cover exhaust hole 53 will be described. When viewed perpendicular to the exhaust surface 15 provided with the main body exhaust hole 51 (the opening surface of the main body exhaust hole 51), the main body exhaust hole 51 and the cover exhaust hole 53 are configured not to overlap each other. Yes. That is, as shown in FIGS. 12 and 13, assuming a vertical line 112 with respect to the opening surface of the main body exhaust hole 51, the cover exhaust hole 53 does not exist on the vertical line 112. For this reason, even when looking into the cover exhaust hole 53 from the outside of the cleaner body 5, the inside of the main body case 10 is difficult to see, and the design is excellent.

  Here, the flow of the air sucked into the cleaner body 5 will be described with reference to FIG. When the electric blower 80 (see FIG. 7) housed in the main body case 10 is driven, the dust-containing air is taken into the primary cyclone separator 30 from the primary inlet 31 via the hose connection port 13 and the main body pipe 60. . The dust-containing air taken into the primary cyclone separation device 30 flows almost horizontally along the side wall of the primary swirl chamber 32 and becomes a swirling airflow. It flows downward due to its path structure and gravity. Dust rides on the descending swirling flow and travels below the primary swirl chamber 32 and is sent to the primary dust collection chamber 33 installed below the primary swirl chamber 32 where it accumulates and is compressed. The air from which the dust has been removed rises along the central axis of the primary swirl chamber 32 and enters the secondary cyclone separator 40 from the secondary inlet 41.

  The air that has flowed into the secondary cyclone separator 40 flows along the side wall of the secondary swirl chamber 42 so that it becomes a swirling airflow, forming a forced vortex region near the central axis and a quasi-free vortex region on the outer periphery thereof. It flows downward due to its path structure and gravity. At this time, since the centrifugal force acts on the dust, the dust that could not be captured by the primary cyclone separation device 30 is pressed against the inner wall of the secondary swirl chamber 42 and separated from the air, and then rides on the descending swirl flow to the secondary After proceeding below the swirl chamber 42, it is collected in the secondary dust collection chamber 43. The air from which the dust has been removed rises along the central axis of the secondary swirl chamber 42 and is discharged from the secondary discharge port 44. The air discharged from the secondary discharge port 44 is guided to the cover filter 70 through the secondary discharge pipe 45.

  The air flowing into the cover filter 70 passes through the filter 73 (see FIG. 7), flows into the main body case 10, and cools the electric blower 80 (see FIG. 7) housed in the main body case 10, while the exhaust unit 50. Proceed to That is, the suction path of the present invention corresponds to a path from the hose connection port 13 to the electric blower 80 through the main body pipe 60, the dust collection unit 20, and the filter cover 70 in the present embodiment.

  The exhaust is discharged to the outside of the cleaner body 5 through the main body exhaust hole 51 and the cover exhaust hole 53 of the exhaust unit 50. Here, as described above, the opening of the main body exhaust hole 51 and the cover exhaust hole 53 is configured not to overlap when viewed perpendicular to the exhaust surface 15 provided with the main body exhaust hole 51. Therefore, the exhaust gas that has exited from the main body exhaust hole 51 once collides with the inner wall of the exhaust cover 52 and is then discharged from the cover exhaust hole 53. For this reason, the exhaust exhausted from the main body exhaust hole 51 is exhausted from the cover exhaust hole 53 after reducing the wind speed inside the exhaust cover 52. Therefore, the wind speed of the exhaust discharged from the cleaner body 5 can be reduced, and the noise accompanying the exhaust can be reduced.

  Although the exhaust cover 52 is configured in a semicircular shape in the present embodiment, the positional relationship between the main body exhaust hole 51 and the cover exhaust hole 53 may be configured as described above, and the shape of the exhaust cover 52 is a semicircular shape. It is not limited to. For example, the cross-sectional shape of the exhaust cover 52 may be substantially U-shaped, or the shape of the substantially U-shaped shoulder portion may be rounded. The wind speed of the exhaust gas discharged can be suppressed.

Further, in the present embodiment, the exhaust surface 15 that forms the main body exhaust hole 51 is a flat surface, but when viewed perpendicular to the surface on which the main body exhaust hole 51 is provided (the opening surface of the main body exhaust hole 51). The main body exhaust hole 51 and the cover exhaust hole 53 may be configured so as not to overlap with each other, and the shape of the exhaust surface 15 is not limited to a flat surface.
In the present embodiment, the example in which the main body exhaust hole 51 is provided in the upper case 12 has been described. However, the main body exhaust hole 51 may be provided in either the upper case 12 or the lower case 11.

  As described above, in the present embodiment, the exhaust cover 52 that covers the main body exhaust hole 51 that blows out the exhaust from the main body case 10 of the cleaner body 5 is provided. The exhaust cover 52 is provided with a cover exhaust hole 53 so that the main body exhaust hole 51 and the cover exhaust hole 53 do not overlap when viewed perpendicular to the exhaust surface 15 provided with the main body exhaust hole 51. Configured. For this reason, the exhaust gas discharged from the main body exhaust hole 51 is discharged from the cover exhaust hole 53 after reducing the wind speed inside the exhaust cover 52, so that the exhaust air speed discharged from the cleaner body 5 is reduced. It can be reduced, and the noise accompanying exhaust can be reduced.

  Moreover, since the main body exhaust hole 51 and the cover exhaust hole 53 are arranged as described above, it is difficult to see the inside of the main body case 10 from the outside of the cleaner body 5, and the design is excellent. Further, it is not necessary to provide a filter for blindfolding.

In general, when a plurality of holes are made in the member, the strength against collision is weakened. In the present embodiment, the exhaust cover 52 is made of a hard material having higher strength against the collision than the main body case 10. For this reason, even when a plurality of cover exhaust holes 53 are provided, it is possible to suppress the strength against the collision of the exhaust cover 52 from being reduced, which contributes to the improvement of durability.
In general, high-strength materials often do not look good, and as a whole body case material that greatly affects the appearance design of a vacuum cleaner, you do not want to use high-strength materials as much as possible. It is. However, since the exhaust cover 52 is provided separately from the main body case 10 in the present embodiment, only the exhaust cover 52 can be made of a material having high strength. The appearance of the vacuum cleaner body 5 can be prevented from deteriorating.

  Further, the raised portion 16 is formed by raising the position where the exhaust cover 52 of the main body case 10 is placed, and the height of the raised portion 16 is the height of the top of the exhaust cover 52 when the exhaust cover 52 is placed. The position is configured to be almost the same height as the position of the top of the main body pipe 60. Further, the exhaust cover 52 and the raised portion 16 are combined to form a substantially cylindrical outer shape. For this reason, the cylindrical exhaust cover 52 and the main body pipe 60 having substantially the same height are disposed on both sides of the dust collection unit 20, and the appearance of the vacuum cleaner main body 5 is designed with a good balance between left and right. be able to.

  Further, the inner coupling portion P viewed from the cross-sectional direction of the raised portion 16 and the exhaust cover 52 is arranged to be below the dust collection unit 20 when the dust collection unit 20 is viewed from above. For this reason, when the cleaner body 5 is viewed from above, the joint P between the raised portion 16 and the exhaust cover 52 is not visible, and the cleaner body 5 looks good.

  In this embodiment, an example in which the present invention is applied to a cyclone type vacuum cleaner constituted by a primary cyclone separator and a secondary cyclone separator is shown, but the configuration of the cyclone separator is not limited. The present invention may be applied to a cyclone type vacuum cleaner having an arbitrary configuration. In addition, the present invention is not limited to a cyclone type vacuum cleaner, but a vacuum cleaner of a type that collects dust using a paper pack from dust-containing air sucked using a negative pressure generated by rotation of a fan as a suction force. Even if applied, the same effect can be obtained.

  1 suction tool, 2 extension pipe, 3 hand hose, 4 hose, 5 vacuum cleaner body, 6 wheels, 7 power cord, 8 operation switch, 10 body case, 11 lower case, 12 upper case, 13 hose connection port, 14 tubes Side surface portion, 15 exhaust surface, 16 raised portion, 17 screw boss, 20 dust collection unit, 22 dust collection unit fixing member, 30 primary cyclone separator, 31 primary inlet, 32 primary swirl chamber, 33 primary dust collection chamber, 40 Secondary cyclone separator, 41 Secondary inlet, 42 Secondary swirl chamber, 43 Secondary dust collection chamber, 44 Secondary exhaust port, 45 Secondary exhaust pipe, 50 Exhaust unit, 51 Main body exhaust hole, 52 Exhaust cover, 53 Cover exhaust hole, 60 Body pipe, 61 Inflow end part, 62 Connection part, 63 Tube part, 64 Discharge end part, 65 Fixing base, 66 Pipe fixing Auxiliary parts, 66a Screw hole, 66b Tube, 67 Screw, 68 Fixing hole, 70 Cover filter, 71 Cover, 72 Cover opening, 73 Filter, 80 Electric blower, 100 Vacuum cleaner, 110 Arrow, 111 Vertical line, 112 Vertical line, 611 inlet, 641 dust collection unit connection port.

Claims (6)

An electric blower that generates a suction force;
A body case containing the electric blower;
A suction path for air sucked by the suction force of the electric blower;
A dust collecting unit disposed on the suction path and collecting dust contained in the sucked air;
A main body exhaust hole provided in the main body case for exhausting air sucked by the electric blower to the outside;
An exhaust cover covering the main body exhaust hole from the outside;
A cover exhaust hole provided in the exhaust cover,
The cover exhaust hole is provided at a position that does not overlap with the main body exhaust hole when viewed perpendicular to the surface on which the main body exhaust hole is formed ,
A vacuum cleaner characterized in that the exhaust cover is made of a material harder than the main body case . The suction path includes a substantially cylindrical main body pipe that connects an air suction port sucked by a suction force of the electric blower and an inlet of the dust collecting unit,
The dust collecting part is configured by a substantially cylindrical container and placed on the main body case,
The main body pipe is placed on the main body case along the longitudinal direction of the substantially cylindrical dust collecting portion,
A plurality of the main body exhaust holes are provided at substantially symmetrical positions with respect to the main body pipe so as to be along the longitudinal direction of the substantially cylindrical dust collecting section.
The exhaust cover is formed in a substantially semi-cylindrical shape in which a cylinder is divided in half. way electric vacuum cleaner according to claim 1 Symbol mounting characterized by being mounted on the body case. The portion of the main body case where the exhaust cover is placed is raised so that the position of the top portion of the exhaust cover when placed on the main body case is substantially the same height as the position of the top portion of the main body pipe. Let it be a raised part,
The vacuum cleaner according to claim 2 , wherein the main body exhaust hole is provided on an upper surface of the raised portion of the main body case. The side wall in the longitudinal direction of the raised portion is bulged outward to form an arc shape, and when the exhaust cover is placed, the exhaust cover and the raised portion are combined to form a substantially cylindrical outer shape. vacuum cleaner according to claim 3 Symbol mounting to. The vacuum cleaner according to claim 3 or 4, wherein an upper surface of the raised portion is inclined so that an outer side is lowered when viewed from a cross-sectional direction. Claim 3, wherein the coupling portion of the inner viewed from cross section direction of the raised portion and the exhaust cover and disposed under the dust collecting section when viewed the dust collection unit from the upper surface The vacuum cleaner of any one of -5 .

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