JPH1176112A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Summary] [Problem] To disclose a vacuum cleaner for improving the dust suction efficiency of a dust collecting fan. [Technical Solution] A grid member 24 as a ventilation member passes through the grid portion 24 on the motor storage room 23 side. An inducer 54 for guiding air to the intake opening 52a of the fan cover 52 is provided, and a frame 63 is protruded from a peripheral portion of the inducer 54, and an end face 63a which is in contact with the lattice 24 of the frame 63.
Is filled with a seal rubber 64 to seal around the lattice portion 24. The vertical wall portion 66 inside the frame portion 63 is opposed to the lattice portion 24 with a space therebetween to form a rectification chamber 67, and the vertical wall portion 66 has a communication port 68 communicating with the suction opening 52 a of the fan cover 52. Is open.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a ventilation member for separating a dust collection chamber and a storage chamber of a motor for rotating a dust collection fan, wherein air passing through the ventilation member is sucked by the dust collection fan. The present invention relates to a vacuum cleaner having improved performance.

[0002]

2. Description of the Related Art Conventionally, a vacuum cleaner having a structure as shown in FIGS. 11 to 13 is known as a vacuum cleaner main body.

In this vacuum cleaner, a dust collecting chamber 3 for storing a dust collecting bag 2 to which a connection port of a dust collecting hose is connected, and a cover 4 for accommodating a dust collecting fan are provided inside a cleaner main body 1. A motor storage chamber 6 for storing the provided motor 5 is generally formed. The dust sucked by the dust collection bag 2 is collected by the dust collection bag 2, and the air that has escaped from the dust collection bag 2 is filtered by the filter 7, a grid as a ventilation member that partitions the dust collection chamber 3 from the motor storage chamber 6. The air that has passed through the portion 8 and passed through the lattice portion 8 is converted into the square tube portion 9 and the air in the square tube portion 9 by the fan cover 4.
The air is sucked into the fan cover 4 through the inducer 10 leading to the air suction port. The air drawn into the dust collection fan
The gas passes through the inside of the motor housing of the motor 5, circulates through the motor housing 6 through the opening 11 of the motor housing, and is exhausted from the grid 12 at the rear of the main body. A seal rubber 15 is provided at the opening 10 a of the inducer 10 and the opening edge of the fan cover 4.

[0004]

However, in such a vacuum cleaner, the inducer 10 disposed at the rear of the rectangular tube portion 9 includes the rib 13 projecting from the bottom of the motor storage chamber 6 and the motor storage chamber. 6 is supported by the ribs 14 extending from the upper cover, so that when the dust collection fan is rotated, the butting portions 13 of the ribs 13 and 14 are rotated.
a, 14a and seal part 13 of inducer 10
The b and 14b may bend and a gap may be easily formed, and air may enter through the gap between the abutting portion and the seal portion with the inducer to reduce the dust suction efficiency of the dust collecting fan.

[0005] Also, the butted portion 1 of the ribs 13 and 14
3a, 14a and a peripheral portion 13b of the inducer 10,
14b must be provided with a seal.
There is a problem in that the seals a and 14a vibrate due to the negative pressure, making it difficult to complete the seal.

The vacuum cleaner of the present invention has been made in view of such a problem, and the airtightness of a portion for guiding air from a ventilation member that separates a dust collection chamber and a motor storage chamber to a dust collection fan is provided. It is an object of the present invention to improve the efficiency of dust suction by the dust collecting fan by improving the dust collecting fan, and to improve the workability of assembling the motor storage room.

[0007]

According to a first aspect of the present invention, there is provided a vacuum cleaner including a dust collecting chamber for collecting dust and a dust collecting fan inside a cleaner body. A vacuum chamber provided with a motor storage chamber for storing the attached electric motor, wherein both are permeable by a ventilation member integrally provided in a case forming the cleaner body, wherein A wind guide member is provided on the storage chamber side for guiding air passing through the ventilation member to an intake opening of the dust collection fan, and is fixed to the ventilation member via a seal member.

According to a second aspect of the present invention, there is provided the electric vacuum cleaner according to the first aspect, wherein the wind guide member has a peripheral portion sealing around the ventilation member and an inner portion of the peripheral portion. A vertical wall portion is formed by an inducer having a flow regulating member facing the ventilation member at an interval to form a flow regulating chamber, and a communication port provided in the vertical wall portion to communicate with a suction opening of the dust collecting fan. It is characterized by.

According to a third aspect of the present invention, in the vacuum cleaner of the first or second aspect, an upper portion of the air guide member is fixedly screwed to the ventilation member, and a lower portion of the air guide member. Is characterized in that the protrusion is formed at the bottom of the motor storage chamber and the ventilation member is in close contact with the ventilation member.

According to a fourth aspect of the present invention, in the vacuum cleaner according to any one of the first and second aspects, an upper cover for closing an upper portion of the motor storage chamber has an upper portion of the air guide member. Is formed on the ventilation member, and an upper portion of the air guide member is sandwiched between the projection portion of the upper cover and the ventilation member so as to be in close contact with the ventilation member. It is characterized in that it is sandwiched and adhered to the projection formed on the bottom of the storage chamber and the ventilation member.

According to a fifth aspect of the present invention, in the vacuum cleaner of any one of the first and second aspects, the upper cover for closing an upper portion of the motor storage chamber and the motor storage chamber are respectively provided. A boss is provided at the rear of the air guide member to fix the upper cover and the motor storage chamber, and an upper portion of the air guide member is held between the boss of the upper cover and the ventilation member. The boss of the motor storage chamber and the ventilation member sandwich the lower portion of the air guide member so as to be in close contact with each other.

[0012]

Next, a vacuum cleaner according to an embodiment of the present invention will be described with reference to the drawings.

FIG. 1 shows a longitudinal section of a cleaner main body 20 of the electric vacuum cleaner according to the embodiment. This vacuum cleaner body 2
Inside 0, a dust collection chamber 21 for connecting a dust collection hose (not shown) and a motor storage chamber 23 for storing the motor 22 and the cord reel unit 100 are formed. The dust collection chamber 21 and the motor storage chamber 23 are partitioned by a grid 24 serving as a ventilation member.
A filter member 25 is provided on one side.

An opening 2 for dust collection is provided at the front end of the dust collection chamber 21.
6 is opened, and a dust collection hose is connected to the opening 26. A seal rubber 27 is provided inside the opening 26 on the dust collection chamber side.
Is provided, and the fixing plate 29 of the dust collection bag 28 is in close contact with the dust collecting bag 28. A cover 30 is provided in front of the opening 26. When the cover 30 is pulled up to the upper end of the opening 26, the upper end of the cover 30 and the upper edge of the opening 26 are hooked. The opening 26 can be closed. Above the seal rubber 27 of the opening 26, a hook 31 for pressing the fixing plate 29 of the dust collection bag 28 against the seal rubber 27 to be in close contact therewith is provided. The hook 31 is pressed against the fixing plate 29 by a rib 33 projecting downward from the lid 32 of the dust collecting chamber 21. The lower edge of the fixing plate 29 is pressed against the seal rubber 27 by a rib 35 projecting upward from the lower case 34 of the dust collection chamber 21.

The dust collecting chamber 21 is provided integrally with a front part of a lower case 34 formed in a box shape having a bottom, a lid part 32 for closing the front upper part of the lower case 34, and a stock case 34. A front wheel portion 36 is formed on the bottom portion 34a on the front side of the lower case 34 so as to be horizontally rotatable. A cover 3 is provided on the upper front edge 34b of the lower case 34.
When the second sealing rubber 37 is in close contact, the dust collecting chamber 21
The airtightness above is maintained. The sealing rubber 37 is the lid 32
It is attached around.

The grid portion 24 for partitioning the dust collecting chamber 21 and the motor storage chamber 23 also forms a front wall surface of the motor storage chamber 23, and is a flat grid 24 extending in the horizontal direction.
a are formed at intervals, and air flows from gaps 24b, 24b between the lattices 24a, 24a. The gaps 24b, 24b are fully opened in the width direction of the cleaner body 20 of the lower case 34.
Compared with the case where a part of the width direction of b, 24b is closed, the flow passage area for ventilating the air is increased, and the air filtration area of the filter unit 25 is increased.

The filter portion 25 includes a frame portion 38 in contact with an edge around the lattice portion 24, a filter body 39 disposed inside the frame portion 38, the filter body 39 and the frame portion 3.
8, a sealing member 40 surrounding the periphery of the filter body 39 so as to be interposed therebetween, a rectifying plate 41 arranged on the center side of the dust collection chamber 21 of the filter body 39, And a grid 42. On the upper part of the frame part 38, a knob part 43 for gripping the filter part 25 for attachment / detachment is protruded. The filter body 39 is formed by bending a non-woven fabric in a bellows shape, and is reinforced by a reinforcing fiber made of resin. The current plate 41 is formed in a honeycomb shape so as to allow air to pass from the dust collection chamber 21 to the motor storage chamber 23. The seal member 40 is in the form of a sponge made of urethane foam, and the length of the seal member 40 in the front-rear direction is set longer than the length of the frame portion 38 in the front-rear direction. The gap between the periphery of the seal member 40 and the frame 38 is sealed. This prevents dust-containing air from entering the motor 22 through the grid 24. Horizontal grids 42 above and below the frame 38,
A vertical grid 44 supporting the 42 is provided.

The motor housing 23 is formed by a rear portion 45 of the lower case 34, an upper cover 47 disposed below the upper outer case 46, and the lattice portion 24 provided integrally with the lower case 34. A rib 49 projecting upward from the rear bottom of the lower case 34 and a rib 50 projecting downward from the upper cover 47 are located at the position of the bearing rear portion 48 of the motor 22. A support rubber 51 for elastically supporting the rear portion of the bearing of the motor 22 is held between the support rubbers.

The upper cover 47 covers the upper side of the motor 22, and the front end of the upper cover 47 is in close contact with the upper edge of the grid portion 24. A rib 47a, which comes into contact with a support rubber 53 also serving as a sealing member, protrudes from a portion of the upper cover 47 that faces above the fan cover 52 that covers the dust collection fan. Behind the upper cover 47, a cover 58 of the motor 22 is provided.
The rib 50 that partitions the rear of the
Along with the rib 49, supports the rear part 48 of the bearing of the motor 22. Notches are formed on the side of the rib 50 and the side of the rib 49 so as to form a ventilation path.

The support rubber 51 is formed in a cylindrical shape, and holds the rear portion 48 of the bearing of the motor 22. A support rubber 53 also serving as a cylindrical seal member is fitted around the outer periphery of the fan cover 52 attached to the front part of the motor 22. Support rubber 53
Are held by an arc-shaped rib 55 on the back surface of an inducer 54 as a wind guide member arranged at the rear part of the lattice portion 24. An exhaust port 57 for the air sucked from the dust collecting fan is opened at a lower rear portion of the case 56 of the motor 22. The air discharged from the exhaust port 57 is supplied to the motor 22.
The air is exhausted from the exhaust port 59 opened below the cover 58 to the space above the sound absorbing material 60 in the lower case rear portion 45. The air exhausted into the space above the sound absorbing material 60 is exhausted from the grid portion 61 at the rear of the cleaner main body through an opening (not shown) opened on the side of the rib 49. Note that a sound absorbing material 62 for exhaust sound is provided in front of the lattice portion 61, and air exhausted from the lattice portion 61 to the outside of the cleaner body 20 passes through the sound absorbing material 62.

FIG. 3 is a side view of the motor 22 shown in FIG.
The code reel unit 100 shown in FIG. The cord reel unit 100 includes a power cord 98 for supplying driving power to the motor 22 and a drum 99 around which the power cord 98 is wound.
8 is urged to rotate in the direction of winding.
A rib for supporting the drum 99 is protruded at a position where the drum 99 and the motor 22 are adjacent to each other.
It shuts off the air that is exhausted from.

FIGS. 2 to 7 show an embodiment of the inducer 54 as a wind guide member according to the first aspect of the present invention.
The air passing through the lattice portion 24 is guided to the suction opening of the fan cover 52. A frame 63 is protruded from a peripheral portion of the inducer 54, and a groove 64 is formed in an end surface 63 a of the frame 63 in contact with the lattice portion 24, and a seal rubber 65 is fitted into the groove 64. The frame portion 63 is located around the groove 24 a of the lattice portion 24 and has a shape capable of covering the entire surface of the lattice portion 24. The seal rubber 65 is compressed by the lattice part 24 and the frame-shaped part 63 to seal around the lattice part 24. The vertical wall portion 66 inside the frame portion 63 faces the grid portion 24 at an interval and faces the rectification chamber 67.
And a communication port 68 communicating with the suction opening of the fan cover 52 is opened in the vertical wall portion 66. On the fan cover 52 side of the communication port 68, a seal rubber 69 that is in close contact with the peripheral portion of the suction opening of the fan cover 52 is fixed.

The vertical wall portion 66 includes a funnel-shaped portion 70 that covers the surface of the fan cover 52 on the dust collection chamber 21 side, and the dust collection chamber 21 side of the above-described cord reel portion 100 that is disposed beside the motor 22. And a flat plate portion 71 that closes. The flat plate portion 71 is separated from the end surface 63a of the frame portion 63, and the funnel-shaped portion 70 is formed so as to be deeper from the flat plate portion 71 to the communication port 68. The fine dust is filtered by the filter main body 25, and the air that has passed through the lattice portion 24 is guided and guided by the flat plate portion 71 and the funnel-shaped portion 70, and is sucked into the fan cover 52 from the communication port 68. Bosses 72 protrude from the upper portion of the vertical wall portion 66 at left, right, and center portions.
Is protruding. The bosses 72 and 73 have a lattice 2
Wood screw (not shown) screwed in from the dust collection chamber 21 side of No. 4
Is screwed on, and thereby the inducer 54 is
Fixed to 4.

In the upper part of the frame 63, a concave portion 74 for measuring the negative pressure in the rectifying chamber 67, and when the dust collecting bag 28 is clogged and the negative pressure sucked by the dust collecting fan becomes abnormally high. And a concave portion 75 for taking in air from the upper portion of the cleaner body 20. The frame 63 above the recess 74
A cylindrical portion 76 protrudes from the cylindrical portion 76 (see FIGS. 1 and 4). The cylindrical portion 76 is provided with a vent hole 77 for negative pressure measurement communicating with the concave portion 74. The ventilation hole 77 communicates with a pressure sensor of a control board (not shown) provided in the upper outer case 46 by a tube or the like, and detects a negative pressure in the rectification chamber 67 to detect a clogged state of the dust collection bag 28. A protrusion 78 having a cross section is formed inside the recess 75, and the protrusion 7
8 is provided with a spring 79. A leak valve 80, which is constantly urged upward by a spring 79, is mounted above the frame portion 63 and above the concave portion 75. Reduce the burden.

On the back side of the funnel-shaped portion 70, that is, on the surface on the side of the dust collecting fan, a protruding plate portion 81 projecting from the frame-shaped portion 63 to the side of the cleaner main body 20 (downward in FIG. I have. The protruding plate portion 81 is continuous with the funnel-shaped portion 70. A pair of arc-shaped ribs 82 for positioning the outer periphery of the support rubber 53 that supports the fan cover 52 and the aforementioned arc-shaped rib 55 protrude from the funnel-shaped portion 70 and the protruding plate portion 81. The arc-shaped rib 82 is formed to have a smaller protrusion amount than the arc-shaped rib 55 so that the support rubber 53 can be easily inserted. The projecting amount of the arc-shaped rib 55 is set high so as to support the fan cover 52 and the front end of the motor 22 via the support rubber 53.

On the back side of the funnel-shaped portion 70, that is, on the surface on the side of the fan cover 52, circular ribs 83 and 84 are provided at the same height so as to closely contact the front end surface of the support rubber 53. Circular ribs 83 and 84 are support rubber 5
3 and keep the airtightness of the support rubber 53. Reinforcing ribs 85 extending in the radial direction are provided on the circular ribs 83 and 84.
86 are formed at the same height. The seal rubber 6
A circular rib 87 having the same height as the reinforcing ribs 85 and 86 protrudes from an outer peripheral portion of the seal 9, and the seal rubber 69 is formed higher than the circular rib 87. The seal rubber 69 is sandwiched between the fan cover 52 and the funnel-shaped part 70, and the suction opening of the fan cover 52 and the communication port 6 of the roll-shaped part 70.
8 is kept airtight.

On the back side of the upper portion of the frame 63, a concave portion 75 is provided.
, A cylindrical protrusion 89 that forms the recess 74, and a boss 90 that screws and fixes the front end of the upper cover 47.

Horizontal ribs 91 and 92 for projecting the power cord 98 at a uniform height when the power cord 98 of the cord reel section 100 is wound around the drum 99 are provided on the rear surface of the flat plate portion 71. ing. Horizontal ribs 91, 9
2 has a substantially L-shaped planar shape, and horizontal ribs 91 and 92 are provided.
The end near the dust collecting fan is integrally formed with a vertical rib 93 protruding from the rear side of the flat plate portion 71. Vertical rib 93
Is substantially flush with a bearing plate that rotatably supports the drum 99 of the code reel unit 100, and partitions the code reel unit 100 and the motor 22. The horizontal ribs 91 and 92 correspond to the interval between a pair of flanges 99 a and 99 b formed on both sides of the drum 99 of the code reel unit 100, and the power cord 98 wound around the drum 99.
Guide the winding of the. The horizontal rib 91 of the vertical rib 93,
Ribs 94, 94 are provided between the projections 92. The amount of protrusion of the ribs 94, 94 from the vertical rib 93 corresponds to the distance between the vertical rib 93 and the flange 99 a of the drum 99 on the vertical rib 93 side. The ribs 94, 94 prevent the power cord 98 from entering the flange 99a and the vertical rib 93.

Further, longitudinal ribs 95, 96, 97 for supporting the arc-shaped rib 55 are provided at the lower portion on the back side of the inducer 54.
Is protruding. The lower end corners of the vertical ribs 95 to 97 are chamfered, and the lower part of the inducer 54 is sandwiched between the vertical rib 101 protruding from the lower case 34 near the grid 24 and the grid 24. The chamfered portions 95a, 96a, 97a of the vertical ribs 95 to 97 and the vertical rib 101 of the lower case 34 are fixed by pressing the lower part of the inducer 54 against the lattice portion 24. As a result, the seal rubber 65 is pressed against the lattice portion 24, and the airtightness between the lower portion of the inducer 54 and the lattice portion 24 is maintained.

According to the electric vacuum cleaner of this embodiment, the seal rubber 65 of the frame 63 is provided around the lattice 24 on the side of the motor storage chamber 23 of the lattice 24 provided integrally with the lower case 34. At the same time, the vertical wall portion 66 inside the frame portion 63 is opposed to the lattice portion 24 with a space therebetween to form a rectification chamber 67, and the vertical wall portion 66 communicates with the suction opening 52 a of the fan cover 52. Since the inducer 54 having the communication port 68 is provided, the inducer 54 and the grid portion 24 are provided.
The airtightness of the surrounding area is improved.

That is, when the inducer is supported by the ribs from above and below as in the prior art, a sealing surface is formed between the ribs or between the rib and the inducer. , Inducer 54
Is brought into contact with the lattice portion 24 provided integrally with the lower case 34, so that a seal surface is formed between the inducer 54 and the traveling support portion 24, thereby improving airtightness. .

Since a rectifying chamber 67 is formed between the inducer 54 and the grid section 24, when the electric motor 22 rotates the dust collection fan, the rectifying chamber 67 inside the inducer 54 causes the rectifying chamber 67 to move from the grid section 24. The introduced air is rectified, and a suction negative pressure can be applied to the entire lattice portion 24, so that suction resistance can be reduced.

FIG. 8 shows another structure of an inducer as a baffle member.
It has a box-like shape that covers the entire rear part of. The inducer 110 has a frame-like portion 111 surrounding the periphery of the lattice portion 24.
And a vertical wall portion 112 for closing the rear inner side of the frame portion 111.
And a seal rubber 113 provided on a contact surface of the frame portion 111 with the lattice portion 24. An opening 114 having substantially the same shape and size is formed in the suction port of the fan cover 52 in the vertical wall portion 112. The vertical wall portion 112 forms a rectification chamber 67 between the vertical wall portion 112 and the lattice portion 24 so that the entire lattice portion 24 and the entire back surface of the filter portion 25 can be sucked with a substantially uniform negative pressure. ing.

The mounting method of the inducer 110 is different from that of FIGS. A pair of bosses 115 is protruded from an upper portion of the vertical wall portion 112 on the lattice portion 24 side. Wood screws 116, 116 screwed into the pair of bosses 115 from above the lattice portion 24 are fastened. The lower portion of the inducer 110 is pressed against the lower edge of the lattice portion 24 by a rib 117 projecting from the rear portion 45 of the lower case 34 to seal the lower portion.

FIG. 9 shows another method of fixing the inducer 110.
Is an upper cover 47 for closing the upper part of the motor storage chamber 23.
In addition, a rib 120 is formed as a protrusion for bringing the upper part of the inducer 110 into close contact with the lattice part 24. The upper part of the inducer 110 is sandwiched between the rib 120 and the lattice part 24 and is in close contact therewith. The lower part of the inducer 110 is sandwiched between and closely adhered to a rib 121 (projection) formed at the bottom of the motor storage chamber 23 and the lattice part 24.

According to the electric vacuum cleaner of this embodiment, the upper part of the inducer 110 is sandwiched between the ribs 120 (projections) of the upper cover and the lattice part 24 so as to be in close contact with each other, and the lower part of the inducer 110 is housed in the motor. Since the ribs 121 (protrusions) formed on the bottom 34 of the chamber 23 and the lattice 24 are in close contact with each other, the screw of the inducer 110 is added to the effect of the vacuum cleaner of FIGS. Stop work is unnecessary,
Assembly workability is improved.

FIG. 10 shows still another method of fixing the inducer 110. The inducer 110 has a boss 130 projecting from a lower cover 34 forming the bottom of the motor housing 23. Have been. This boss 13
0, the lower part of the inducer 110 is
A rib 131 is formed as a protruding portion to be brought into close contact with the substrate. The lower part of the inducer 110 is the rib 13 of the boss 130
1 and the lattice portion 24 and are in close contact with each other. When the lower part of the inducer 110 is fixed by the boss 130 and the rib 131, there is a method of fixing the upper part with a wood screw 116 and a boss 115, but the boss 130 and the rib 131 are also protruded from the upper cover 47, and the upper and lower bosses 130 are fixed. And rib 131
The top and bottom of the inducer 110 may be fixed by using.

According to the vacuum cleaner of this embodiment, the boss 130 is provided on each of the upper cover 47 and the bottom 34 of the motor storage chamber, and the inducer 110 is formed by the boss 130 of the upper cover 47 and the grid portion 24. The lower portion of the inducer 110 is sandwiched and adhered by the boss 130 of the bottom portion 34 of the motor storage chamber 23 and the lattice portion 24. Since the lattice portion 24 and the inducer 110 are brought into close contact with each other using the upper and lower bosses 130, 130, the structure of the mold can be prevented from becoming complicated, and the manufacturing cost can be reduced.

In each of the above-described embodiments, the seal between the fan cover 52 and the inducer 54 and the seal between the support rubber 53 and the inducer 54 cause the motor 22 to collect dust due to the negative pressure of the motor 22. Since it is pulled to the chamber side, it is securely sealed.

[0040]

According to the vacuum cleaner of the first aspect of the present invention, a dust collecting chamber for collecting dust and a motor storage chamber for storing an electric motor equipped with a dust collecting fan are installed inside the cleaner body. A vacuum cleaner in which both are permeable by a ventilation member integrally provided in a case forming the cleaner body, and the air passing through the ventilation member is provided on the storage chamber side of the ventilation member. Since the air guide member that guides to the intake opening of the dust collecting fan is provided and fixed to the ventilation member via the seal member, the airtightness between the air guide member and the ventilation member is improved. Furthermore, since a rectifying chamber is formed between the air guiding member and the ventilation member, when the dust collection fan is rotated, the air introduced into the air guiding member is rectified, and suction negative pressure is applied to the entire ventilation member. It can act, and the whole ventilation member can be made air-permeable, so that the suction resistance can be reduced.

According to the vacuum cleaner of claim 2 of the present invention,
The wind guide member is formed by an inducer, and the inducer is disposed on the storage chamber side of the ventilation member, and a peripheral portion seals around the ventilation member, and a vertical wall portion inside the peripheral portion forms the ventilation member. A rectification chamber is formed facing away with a gap, and an exhaust port communicating with the suction opening of the dust collection fan is provided on this vertical wall, so that the airtightness between the inducer and the surroundings of the ventilation member is improved. improves. In addition, since a rectification chamber is formed between the inducer and the ventilation member, when the dust collection fan is rotated, the air introduced from the ventilation member is rectified by the rectification chamber inside the inducer, and the suction negative pressure is applied to the entire ventilation member. Can be made to act, and the entire ventilation member can be made permeable, so that the suction resistance can be reduced.

According to the vacuum cleaner of claim 3 of the present invention,
The upper part of the air guide member is fixedly screwed to the ventilation member, and the lower part of the air guide member is sandwiched and closely attached to the protrusion formed on the bottom of the motor storage chamber and the ventilation member.
In addition to the effects described above, screwing on the lower part of the peripheral edge is not required, and the workability of assembly is improved.

According to the vacuum cleaner of claim 4 of the present invention,
The upper part of the air guide member is sandwiched between the protrusions of the upper cover and the ventilation member, and adheres, and the lower part of the air guide member is sandwiched between the protrusion formed at the bottom of the motor storage chamber and the ventilation member, and adheres closely. Therefore, in addition to the effects of the first to third aspects, the screwing operation of the wind guide member is not required, and the assembling workability is further improved.

According to the vacuum cleaner of claim 5 of the present invention,
Bosses protrude from each of the upper cover and the motor compartment,
The upper portion of the air guide member is sandwiched and adhered by the boss of the upper cover and the ventilation member, and the lower portion of the air guide member is sandwiched and adhered by the boss of the motor storage chamber and the ventilation member. In addition to the effect of the fourth aspect, since the ventilation member and the air guide member are brought into close contact with each other using the upper and lower bosses, the structure of the mold can be prevented from being complicated, and the manufacturing cost can be reduced.

[Brief description of the drawings]

FIG. 1 is a sectional view of a vacuum cleaner main body of a vacuum cleaner according to a first embodiment of the present invention.

FIG. 2 is a front view of an inducer as a wind guide member of the present invention.

FIG. 3 is a rear view of the inducer of FIG. 2;

FIG. 4 is a vertical sectional view of the inducer of FIG.

FIG. 5 is a side view of the inducer of FIG. 1;

FIG. 6 is a partial cross-sectional view showing a groove of a frame portion of the inducer of FIG. 1;

FIG. 7 is a cross section of the center of the exhaust port of the inducer of FIG. 1;

FIG. 8 is a schematic partial perspective view showing an inducer according to a second embodiment of the present invention.

FIG. 9 is a schematic longitudinal sectional view of an inducer according to a third embodiment of the present invention.

FIG. 10 is a schematic perspective view of a ribbed boss used in a fourth embodiment of the present invention.

FIG. 11 is a longitudinal sectional view showing a structure for mounting an inducer of a conventional vacuum cleaner.

FIG. 12 is a partially enlarged cross-sectional view of a structure for mounting an inducer of a conventional vacuum cleaner.

FIG. 13 is a partial perspective view showing a structure for mounting an inducer of a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 20 Vacuum cleaner main body 21 Dust collection room 22 Motor 23 Motor storage room 24 Lattice part (ventilating member) 47 Top cover 52 Fan cover 54 Inducer (wind guide member) 63 Frame-shaped part 65 Seal rubber 66 Vertical wall part 67 Rectification room 68 Communication mouth

 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Hiroshi Yokoyama 43 Horiyamashita, Hadano-shi, Kanagawa Prefecture Inside TEC Hadano Plant (72) Inventor Noriaki Senda 43 Horiyamashita, Hadano-shi, Kanagawa Tec Corporation Inside the Hadano Plant (72) Inventor Fumiki Mano 43 Horiyamashita, Hadano City, Kanagawa Prefecture Inside the Tech Hadano Plant Co., Ltd.

Claims (5)

[Claims] 1. A case in which a dust collecting chamber for collecting dust and a motor storage chamber for storing an electric motor to which a dust collecting fan is mounted are provided inside the cleaner body, and both of them form the cleaner body. A vacuum cleaner, which is partitioned so as to be able to ventilate with a ventilation member provided integrally with the ventilation member, and guides air passing through the ventilation member to an intake opening of the dust collection fan, on the storage chamber side of the ventilation member. A vacuum cleaner provided with a member and fixed to the ventilation member via a sealing member. 2. The vacuum cleaner according to claim 1, wherein the wind guide member has a peripheral portion sealing around the ventilation member, and a vertical wall portion inside the peripheral portion forms an interval with the ventilation member. An electric vacuum cleaner characterized by being constituted by an inducer which is opened and opposed to form a rectification chamber, and a communication port for communicating with a suction opening of the dust collecting fan is provided in the vertical wall portion. 3. The vacuum cleaner according to claim 1, wherein an upper portion of the air guide member is fixedly screwed to the ventilation member, and a lower portion of the air guide member is formed at a bottom of the motor storage chamber. An electric vacuum cleaner characterized in that it is sandwiched between and adheres to the protruding portion and the ventilation member. 4. A vacuum cleaner according to claim 1, wherein a projection for bringing the upper portion of the air guide member into close contact with the ventilation member is provided on an upper cover for closing an upper portion of the motor storage chamber. The upper part of the air guide member is sandwiched between the protrusion of the upper cover and the ventilation member so as to be in close contact with each other, and the lower part of the air guide member is formed at the bottom of the motor storage chamber. A vacuum cleaner that is sandwiched between and in close contact with the ventilation member. 5. The vacuum cleaner according to claim 1, wherein an upper cover for closing an upper part of the motor storage chamber and the motor storage chamber are respectively located behind the air guide member. A boss for fixing the upper cover and the motor storage chamber is protruded, and the upper portion of the air guide member is pinched and brought into close contact with the boss of the upper cover and the ventilation member,
A vacuum cleaner characterized in that a lower portion of the air guide member is sandwiched and brought into close contact with a boss of the motor storage chamber and the ventilation member.