JP2002159424A - Suction body of electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an electric vacuum cleaner of the exhaust circulating structure, which is easy to use because it neither blows the dust off the place to be cleaned, reduces the suction power, nor requires more complicated structure when the suction adapter is applied for cleaning narrow space. SOLUTION: The connection pipe of this electric vacuum cleaner is provided with air passages each of which is connected to the suction air passage or the exhaust air passage at the hand controller. A suction body which is attached to either the end of the connection pipe or the hand controller is also provided with a suction air passage and an exhaust air passage that are separately connected with their corresponding passages of the connection pipe. In the suction body, the air is exhausted from inside toward directions other than the suction mouth. The area of the exhaust outlet is larger than that of the suction mouth, and the suction air velocity is made higher than the exhaust air velocity.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner for circulating exhaust air from an electric blower to a suction port, and more particularly to a structure of a suction tool.

[0002]

2. Description of the Related Art A vacuum cleaner which recirculates exhaust gas discharged from an electric blower into a suction port directly injects the exhaust gas into the suction port in the vicinity of the suction port, and makes the dust rise from a cleaning surface by the force of the injection. In general, a structure in which circulating exhaust gas is sucked from a suction port is used.

[0003] On the other hand, in a suction tool having a thin tip for cleaning a gap of furniture or the like, the circulated exhaust gas may blow off dust on the cleaning surface,
There is a problem that the suction force is extremely reduced.Therefore, when the suction port is attached, the exhaust air path is completely closed, and the exhaust port of the main unit is exhausted, or most of the exhaust is circulated to the intake port. It is configured to discharge part of the air into the atmosphere.

However, there is a problem that a complicated mechanism for switching the exhaust air path is required, and there is a problem that the usability is not good, such as setting a dedicated operation mode. There is a problem that the suction force is reduced.

[0005]

SUMMARY OF THE INVENTION It is an object of the present invention to provide an exhaust circulation structure which does not cause dust on a cleaning surface to flow up when using a suction port for clearance, does not reduce suction force, and reduces the structure. An object of the present invention is to provide an easy-to-use vacuum cleaner without complication.

[0006]

Means for Solving the Problems To solve the above problems, an electric vacuum cleaner having an electric blower for sucking dust into a dust collection chamber and a dust collection chamber for storing a dust collection filter on an intake side of the electric blower. A main body, one end of which is attached to the main body, an intake air passage for sending intake air from a suction body into the dust collecting chamber, and circulating exhaust gas discharged from the electric blower through the dust collection filter to the suction body. A hose provided with an exhaust air passage to be provided, a hand-operated unit attached to the other end of the hose, and provided with an intake air passage and an exhaust air passage that respectively communicate with an intake air passage and an exhaust air passage of the hose, In a vacuum cleaner having a connection pipe provided with an intake air path communicating with an intake air path and an exhaust air path of the hand operation unit, a suction tool connected to the distal end of the connection pipe or the hand operation unit. An intake air path and an exhaust air path of the connection pipe; A structure in which an intake air path and an exhaust air path are provided so as to communicate with each other, and the exhaust air path and the intake air path are shut off, and exhaust air from the exhaust air path is discharged in a direction other than the intake port of the suction device. And

Further, the suction tool has a structure in which the area of the exhaust port is larger than the area of the suction port. Further, the structure is such that the wind speed of the suction airflow at the suction port of the suction tool is higher than the wind speed of the exhaust flow at the exhaust port of the suction tool.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS One embodiment of the present invention will be described below with reference to FIGS.

FIG. 1 is an overall perspective view of a vacuum cleaner according to an embodiment of the present invention. In FIG. 1, reference numeral 100 denotes a cleaner main body that houses a dust collection chamber and an electric blower, and 201 denotes a cleaner main body 1.
00 body side joint connected to the front of
Numeral 02 is a cylindrical portion, and a main body side joint is detachably inserted into the cylindrical portion, and a handle portion having a handle so that a user can hold it by hand is further provided. 301 is the other end side of the main body side joint 201. The hose 401 is rotatably connected to the hose 401.
1 is a hand-operated portion having the other end rotatably connected thereto and having a switch means for turning on and off the operation of the vacuum cleaner; 501 is a telescopic extension tube to which the other end of the hand-operated portion 401 is connected;
Is a mouthpiece that is connected to the other end of the telescopic extension tube 501 and sucks dust on the cleaning surface.

Next, the main body 1 of the vacuum cleaner according to the embodiment of the present invention.
The structure of 00 will be described.

FIG. 2 is a longitudinal sectional view of the cleaner according to the embodiment of the present invention, and FIG. 3 is a transverse sectional view of the cleaner according to the embodiment of the present invention.

In FIGS. 2 and 3, reference numeral 101 denotes a lower case constituting an outer shell of a lower portion of the cleaner main body 100, and reference numeral 102 denotes an outer shell of an upper portion of the cleaner main body 100.
An upper case 103 disposed on the upper part of the vacuum cleaner 01 is a dust collecting cover for covering the opening of the dust collecting chamber. Next, the cleaner body 100
Will be described. Hereinafter, in this embodiment, the side to which the hose joint is connected (left side in FIG. 2) is the front side, the cord reel and the exhaust port side are the rear side (right side in FIG. 2), and the upper case 102 side is the upper side (FIG. 2). Upper side), lower case 101 side lower side (lower side in FIG. 2)
Called.

Reference numeral 104 denotes a dust collecting case which is disposed on the front side of the cleaner body 100 and forms a dust collecting chamber 105; 106 denotes a dust collecting filter which is disposed in the dust collecting chamber 105; An electric blower 108 is disposed on the rear side of the motor and generates a suction airflow. Reference numeral 108 denotes a code reel that winds a power cord disposed in a code reel storage chamber 109. The cleaner main body 100 according to the present embodiment has an electric blower 107 and a code reel 108 arranged in series in the front-rear direction of the cleaner main body 100. That is, the electric blower 10
The rotation axis 7 and the rotation axis of the code reel 108 are oriented in the same direction and in the front-rear direction of the cleaner main body 100.

Reference numeral 110 denotes a motor lower cover formed integrally with the lower case 101, and reference numeral 111 denotes a motor upper cover located above the motor lower cover and disposed so as to cover the electric blower 107. In the present embodiment, the lower motor cover 11
0 is formed integrally with the lower case 101, but may be formed separately from the lower case 101 as necessary. Further, the motor upper cover 111 may be formed integrally with the upper case 102. The electric blower 107 has a front side supported by a vibration-proof rubber 112 and a rear side supported by a vibration-proof rubber 113.

The anti-vibration rubber 113 is sandwiched and fixed between the lower motor cover 110 and the upper motor cover 111. The electric blower 107 is a motor lower cover 11.
0 is provided in an electric blower chamber 114 formed by the motor upper cover 111. In the electric blower room 114, a flame-retardant sound absorbing material 115 is provided on the outer periphery of the electric blower 107 on the side of the electric motor unit having the exhaust port. An opening 116 that allows the exhaust of the electric blower to pass therethrough is formed above the motor upper cover 111. This opening 11
Above 6, a sound absorbing material 117 is provided. As shown in FIG. 4, the sound absorbing material 117 protrudes downward in the upward extension direction of the center of the opening 116 (the center of the rotation axis of the electric blower 107), and extends upward and downward in the left-right direction with the protrusion 117 a as a boundary. It is formed to be curved. The projecting portion 117a of the sound absorbing material 117 is projected downward by a downwardly extending rib 150 formed integrally with the upper case 102.

Further, sound absorbing members 118 and 119 are arranged outside the sound absorbing member 117 in the left-right direction. Sound absorbing material 11
Reference numerals 7 and 118 are bonded to the back surface of the upper case 102 with an adhesive or the like, and the sound absorbing material 119 is bonded to the inside of the lower case 101 with an adhesive or the like. In this embodiment, the sound absorbing materials 117, 118, and 119 are divided into a plurality of parts. However, the present invention is not limited to this. It may be bonded to 101.

In the electric blower chamber 114, between the outer periphery of the electric blower 107 and the lower motor cover 110 and the upper motor cover 111, a first air passage through which the exhaust of the electric blower 107 flows is provided inside the motor cover. 120 are formed. Also, the motor upper cover 111 and the upper case 1
02, a ventilation passage 121 in the upper case, which is a second ventilation passage communicating through the opening 116, is formed. Between the motor lower cover 110 and the side wall of the lower case 101,
A lower case ventilation passage 122 is formed as a third ventilation passage communicating with the upper case ventilation passage 121. Further, below the electric blower 107, there is formed a filter storage chamber 124 serving as a fourth ventilation path also serving as a storage space for the filter 123 communicating with the ventilation path 122 in the lower case.

Exhaust gas discharged from the electric blower 107 is diverted in the left-right direction as shown in FIG.
20 flows along the outer periphery of the electric blower 107 and passes through the opening 116 on the upper side. Opening 11
Exhaust passing through the upper case 6 is diverted in the left-right direction by the protruding portion 117a, and serves as a second ventilation path inside the upper case ventilation path 12.
1 flows along the outer periphery of the motor upper cover 111. The exhaust gas that has passed through the lower case ventilation passage 122 formed by the motor lower cover 110 and the side wall of the lower case 101 is:
The gas flows into a filter storage chamber 124 which is a fourth ventilation path also serving as a storage space for the filter 123. In the filter storage chamber 124, the exhaust gas flowing in from the left and right directions of the ventilation passage 122 in the lower case joins and the exhaust gas flows over the entire filter 123.

The exhaust gas flowing into the filter storage chamber 124 passes through the exhaust passage shown in FIG. 2, passes through the lower case exhaust passage 180 shown in FIG. And flows through the exhaust passages of 162 and 161.

In addition, 127 is a front wheel disposed on the front side of the lower case 101, 128 is a rear wheel disposed on the rear side of the lower case 101, and 132 is rotatable in the front-rear direction of the cleaner body 301. It is a handle provided in.

Next, the structure of the 201 body side joint will be described with reference to FIG.

Reference numeral 201 denotes a body-side joint connected to the body,
202 is a handle provided above the body side joint 201,
Reference numeral 203 denotes a body-side joint exhaust passage opening for sending exhaust gas flowing from the exhaust passage 161 into the hose, and 204 denotes a suction body 6.
Reference numeral 205 denotes a seal ring for supporting and fixing a hose, reference numeral 206 denotes a locking ring for preventing the hose from coming off, and reference numeral 207 denotes exhaust of a main body side joint. A hose exhaust passage opening for sending exhaust gas flowing from the passage opening 203 into the hose is provided integrally with the seal ring 201.

Hose (1) 301, Hose (2) 302
Has a double structure, and the inflow area of the hose (2) 302 intended for the intake passage is larger than the hose (1) 301 intended for the exhaust passage.

Next, the operation of the hand operation unit will be described with reference to FIG.

Reference numeral 401 denotes a hand operation unit, 402 denotes a hand operation unit joint serving as a handle, 403 denotes an intake pipe (2), 404 denotes an intake pipe (3), 405 denotes a hand exhaust passage, and 406 denotes a hand exhaust passage. , 407 and 408 are infrared LEDs, 409 is a clamp, and 410 is a control board.

Basically, it has the same structure as the main body side joint 201, and plays a role of flowing exhaust gas toward the extension pipe.

Next, the operation of the extension pipe will be described with reference to FIG.

As shown in FIG.
Reference numeral 0 denotes a first extension pipe 501 disposed on the handle 401 of the hand operation unit, and a second extension pipe 501 disposed on the suction body 601 side.
And an extension tube 502. The second extension pipe 5
02 is formed to be thinner than the first extension pipe 501, one end of which is inserted into a connection portion of one end of the first extension pipe 501, and the second extension pipe 502 moves in the first extension pipe 501. Thereby, the length of the extension tube 500 can be adjusted.

The first extension pipe 501 is made of a resin material in this embodiment, and has a transport path 503 through which dust passes. Also, a component placement section 504 is provided on one side (lower surface side) in the longitudinal direction of the first extension pipe 501 by the first extension pipe 501.
And a connecting pipe cover / pipe hook 505 formed of a resin material, and both members are attached via screws or the like.

The transport path 503 is provided so as to penetrate both ends in the longitudinal direction of the connection pipe.

FIG. 9 is a cross-sectional view of the suction tool and the hand operation unit according to the embodiment of the present invention. In FIG. 9, the hand operation unit 40
Exhaust that has passed through the exhaust passage 702 of the suction device 701 from the first hand exhaust passage 406 is discharged into the atmosphere through the exhaust port 703 of the suction device 701 as shown by the solid line arrow in FIG.

FIG. 10 is an external view of a mouthpiece showing one embodiment of the present invention. Since the exhaust port 703 of the suction tool 701 is oriented in a direction other than the surface to be cleaned, dust on the surface to be cleaned does not rise.

The present invention is not limited to a suction tool having a thin tip suitable for cleaning a narrow place, but is also applicable to a suction tool having a brush shape and a round brush shape.

[0034]

As described above, according to the present invention, it is possible to provide a vacuum cleaner which does not cause dust to fly up from the cleaning surface during cleaning as an exhaust gas circulation cleaner, and which has improved practicality. Can be achieved.

[Brief description of the drawings]

FIG. 1 is an overall perspective view showing one embodiment of the present invention.

FIG. 2 is a longitudinal sectional view of a main body showing one embodiment of the present invention.

FIG. 3 is a cross-sectional view of the main body showing one embodiment of the present invention.

FIG. 4 is a perspective view of a main body showing one embodiment of the present invention.

FIG. 5 is a perspective view of the lower case (inside).

FIG. 6 is a sectional view of a main body joint showing one embodiment of the present invention.

FIG. 7 is a cross-sectional view of a hand operation unit according to the embodiment of the present invention.

FIG. 8 is a cross-sectional view of an extension tube and a hand operation unit according to an embodiment of the present invention.

FIG. 9 is a cross-sectional view of a mouthpiece and a hand operation unit according to an embodiment of the present invention.

FIG. 10 is an external view of a mouthpiece showing one embodiment of the present invention.

[Explanation of symbols]

100: vacuum cleaner main body, 101: lower case, 102: upper case, 103: dust collecting lid, 104: dust collecting case, 105 ...
Dust collecting chamber, 106: dust collecting filter, 107: electric blower, 108: cord reel, 109: cord reel storage chamber, 110: motor lower cover, 111: motor upper cover, 112: anti-vibration rubber (front), 113 ... Anti-vibration rubber (rear), 114: electric blower room, 115: sound absorbing material, 11
6 opening, 117 sound absorbing material, 117a projecting portion, 1
Reference numeral 18: sound absorbing material, 119: sound absorbing material, 120: air passage in the motor cover, 121: air passage in the upper case, 122: air passage in the lower case, 123: filter, 124: filter storage chamber, 127: front wheel, 128 ... Rear wheel, 132 ... Handle, 150 ... Rib, 160 ... Hose port, 161 ... Exhaust flow path, 162 ... Exhaust flow path, 163 ... Exhaust flow path, 180
... lower case exhaust passage, 181 ... lower case exhaust passage opening, 2
01: body side joint, 202: handle part, 203: body side joint exhaust passage opening, 204 ... intake pipe (1), 205 ... seal ring, 206 ... locking ring, 207 ... hose exhaust passage opening, 301 ... hose ( 1), 302: Hose (2), 401: Hand operation unit, 402: Hand operation unit joint, 403: Intake pipe (2), 404: Intake pipe (3), 405: Hand exhaust passage opening, 406: Hand exhaust Channel, 407 ... infrared LED, 408 ... infrared LED, 409 ...
Clamp, 410: control board, 500: telescopic extension tube, 5
01: first pipe, 502: second pipe, 503: transport path, 504: component placement part, 505: connection pipe cover and pipe hook, 601: suction body, 602: exhaust duct connection part, 601 ... Suction body joint, 601 exhaust duct, 701
… Suction device, 702, exhaust channel of the suction device, 703, exhaust port of the suction device, 704, intake channel of the suction device, 705,
Suction implement inlet.

 ────────────────────────────────────────────────── ─── Continuing on the front page (72) Inventor Shigehiko Suzuki 1-1-1 Higashitaga-cho, Hitachi City, Ibaraki Prefecture F-term in Hitachi Taga Electronics Co., Ltd. (Reference) 3B006 BA05 BA07 3B057 BA09 BA23 BA25 3B061 AA02 AA44 AA55 AH01 AH02

Claims (4)

[Claims] An electric blower for sucking dust into the dust collecting chamber; a vacuum cleaner main body including a dust collecting chamber for accommodating a dust collecting filter on an intake side of the electric blower; one end attached to the main body; A hose having an intake air passage for sending intake air from the suction body into the dust collection chamber, and an exhaust air passage for circulating exhaust gas discharged from the electric blower through the dust collection filter to the suction body, Attached to the other end of the hose,
A hand operation unit having an intake air passage and an exhaust air passage communicating with the intake air passage and the exhaust air passage of the hose, respectively, and an intake air passage communicating with the intake air passage and the exhaust air passage of the hand operation unit, respectively. In a vacuum cleaner having a connection pipe provided with, an intake air path and an exhaust air path which are connected to a distal end of the connection pipe and communicate with an intake air path and an exhaust air path of the connection pipe, respectively, and A suction device for a vacuum cleaner, wherein an exhaust air passage and an intake air passage are shut off, and exhaust air from the exhaust air passage is discharged in a direction other than an inlet of the suction device. 2. An electric blower for sucking dust into the dust collecting chamber, a vacuum cleaner main body including a dust collecting chamber for storing a dust collecting filter on an intake side of the electric blower, and one end attached to the main body, A hose having an intake air passage for sending intake air from the suction body into the dust collection chamber, and an exhaust air passage for circulating exhaust gas discharged from the electric blower through the dust collection filter to the suction body, Attached to the other end of the hose,
In a vacuum cleaner having a hand operation unit having an intake air passage and an exhaust air passage communicating with an intake air passage and an exhaust air passage of the hose, respectively, An intake air path and an exhaust air path that respectively communicate with the path and the exhaust air path, and the exhaust air path and the intake air path are shut off; A suction device for a vacuum cleaner, wherein the suction device discharges in a direction other than the above. 3. The suction tool for a vacuum cleaner according to claim 1, wherein an area of an exhaust port of the suction tool is larger than an area of the suction port. 4. The vacuum cleaner according to claim 1, wherein the wind speed of the suction airflow at the suction port of the suction tool is higher than the wind speed of the exhaust flow at the exhaust port of the suction tool. Suction tool.