JP2002078651A - Suction nozzle for vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a suction nozzle for a vacuum cleaner having a high dust collecting efficiency. SOLUTION: The shaft of a motor 27 is connected to a rotating plate 28, which is provided with a projection 29 at a position deviated from the center thereof, and the projection 29 is inserted into the long hole 30 of a connecting member 17. Furthermore, a vibration member 16 is provided at the tip end portion of the connecting member 17, and a plurality of supporting members 14 are firmly fixed to the edge of the vibration member 16, and further a comb- like brush 13 is firmly fixed to the edges of the supporting members 14 by way of a supporting plate 15.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a suction port of an electric vacuum cleaner used in ordinary households.

[0002]

2. Description of the Related Art FIG. 8 shows, for example, Japanese Patent Application Laid-Open No. 9-276184.
It is a bottom sectional view of the suction opening of the conventional vacuum cleaner indicated by Unexamined-Japanese-Patent Publication. 8, reference numeral 1 denotes a suction opening having an open bottom surface, reference numeral 2 denotes a swing plate disposed at a lower portion in the suction opening 1, and reference numeral 3 denotes a support shaft 4 provided at both ends of the rotation plate 2. , A cylindrical rod arranged on one side of the swing plate 2 and orthogonal to the longitudinal direction thereof, 6 a driving device for reciprocating the rod 5 up and down, and 7 a suction port This is a suction pipe provided in the center of the body 1.

FIG. 9 is a side sectional view of a mechanism for driving the swinging plate 2. Next, the operation of the mechanism will be described with reference to FIG. When an alternating current is passed through a ring-shaped coil 8 surrounding a part of the cylindrical rod 5, the coil 8
An AC magnetic field is generated between the coil and a ring-shaped ferromagnetic material (magnet) 9 provided inside the coil 8 and fitted to a part of the rod 5. As a result, the rod 5 reciprocates in the horizontal direction, so that the rocking plate 2 connected by the connecting shaft 10 fixed to the distal end of the rod 5 rocks left and right with the support shaft 4 as a fulcrum. The movable brush 11 provided at the lower end of the arm also swings.

[0004] With such a configuration, the bottom surface of the suction port body 1 is pressed against the floor surface and moved back and forth, so that the rocking plate 2 is moved.
The movable brush 11 provided at the lower end of the is reciprocatingly swings horizontally on the floor surface. Then, dust on the floor surface flows in through a suction port (portion a in FIG. 8) formed in the center of the suction port body 1, and
The dust is sent from the suction pipe 7 to the main body side (not shown) of the vacuum cleaner through an extension hose (not shown).

[0005]

The conventional vacuum cleaner is:
As described above, since the movable brush provided at the lower end of the rocking plate reciprocates in the horizontal direction in a state of being in vertical contact with the floor surface of a carpet or the like, dust is pushed into the fur of the carpet. As a result, the effect of scraping out dust on the floor surface and flying it up in the air is weakened, and accordingly, there is a problem that the amount of dust sucked from the suction port of the suction port body is reduced.

SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned problem, and when moving the suction opening body back and forth, the dust adhering to the floor surface of, for example, a carpet is efficiently scooped up and the dust is removed. An object of the present invention is to obtain a suction port body of a vacuum cleaner having high dust collection efficiency by adopting a method of sucking air from a suction port.

[0007]

SUMMARY OF THE INVENTION A suction port of a vacuum cleaner according to the present invention has a suction port that opens in the suction port and extends in the front-rear direction of the suction port and is inclined with respect to a cleaning surface. A brush body having an opposed brush is rotatably supported, and the brush body has driving means for reciprocating and rotating the brush in a vertical direction while at least a tip end of the brush faces the suction port. It was done.

Further, a guide wall for a suction air flow from the root to the tip of the brush is provided inside the suction opening of the brush body facing the brush.

Further, the brush of the brush body is arranged to face the cleaning surface at an angle of about 15 °.

[0010] Further, the brush body is configured to incline above the horizontal plane when the tip of the brush rotates upward.

Further, the brush of the brush body is formed in a comb shape.

A brush having a brush extending in the front-rear direction of the suction port body and inclined with respect to a cleaning surface to the suction port body having the suction port opened and forming the exhaust air path of the circulation air path; The brush body is rotatably supported, and the brush body is provided with driving means for causing at least the tip of the brush to face the suction port and reciprocating and rotating the brush in a vertical direction, and moving the brush from the root to the tip. This is to face the suction air passage.

[0013]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Embodiment 1 FIG. 1 is a bottom sectional view showing Embodiment 1 of a suction opening body of a vacuum cleaner according to the present invention. In FIG. 1, 12 is a suction port body, 13
Are comb-shaped brushes provided at the upper part in the suction opening body 12;
Reference numeral 4 denotes a plurality of support members fixed to a support plate 15 supporting the comb-shaped brush 13, 16 denotes a vibration member fixed to the plurality of support members 14, and 17 denotes a connection member connected to a central portion of the vibration member 16. Reference numeral 18 denotes a bottom plate provided at a lower portion of the suction port body 12. A front wheel 19 is mounted on both sides of an upper portion of the bottom plate 18, and a rear wheel 20 is mounted on both sides of the lower portion. Reference numeral 21 denotes a suction pipe connected to a lower central portion of the bottom plate 18.

FIG. 2 is a side sectional view of the suction port body 12. As shown in FIG. In FIG. 2, a storage chamber 23 formed by being covered with a partition member 22 is disposed at the center of the suction opening body 12, and a brush driving mechanism 24 for driving the comb-shaped brush 13 is stored in the storage chamber 23. Is done. Then, a suction passage 25 is formed above the storage chamber 23, and the brush 13 is provided near the entrance of the suction passage 25. Note that the suction passage 23 may be formed at a position other than above the storage chamber 23.

FIG. 3 is a perspective view showing the structure of the brush driving mechanism 24. As shown in FIG. In FIG. 3, 26 is a motor 27
Is a rotating plate connected to the rotating shaft of the motor 27, and a projection 29 is provided at a position off the center of the rotating plate. The projection 29 is inserted into the long hole 30 of the connecting member 17. Then, a vibration member 16 is provided at the tip of the connecting member 17, and a plurality of support members 14 are fixed to the end of the vibration member 16. Multiple support members 14
A support plate 15 for supporting the comb-shaped brush 13 is fixed to an end of the brush.

Next, the dust collecting operation of the suction opening 12 accommodating the above-described brush driving mechanism 24 will be described with reference to FIGS. By driving the main body (not shown) of the vacuum cleaner, air flows from the suction port 31 of the suction port body 1 to the suction pipe 21 through the suction path 25 and is sent to the dust collection chamber (not shown) side of the main body. In this process, the motor 26 of the brush drive mechanism 24 is driven, whereby the rotating plate 28 that engages with the rotating shaft of the motor 27 rotates. The connecting member 17 that engages with the protrusion 29 provided on the rotating plate 28 performs eccentric movement. Therefore, from the connecting member 17 to the vibrating member 16 and from the vibrating member 16 to the plurality of supporting members 14
The brush 4 repeats the vertical movement from the support member 14 via the support plate 15. Here, the tip of the brush 13 is positioned so as to make contact with the floor surface of a carpet or the like at a predetermined angle, and from this state, the tip of the brush 13 penetrates the floor surface and draws an arc upward. And move.
Thereby, when the suction port body 12 containing the brush 13 is reciprocated back and forth while being in contact with the floor surface, it is possible to efficiently scoop up dust entangled in the back of hair such as a carpet at the tip of the brush 13. it can.

Next, a brush 13 for the floor surface of a carpet or the like is used.
FIG. 4 shows a characteristic diagram of, for example, the number of catches of lint when the brush drive mechanism 24 is driven by changing the contact angle of the brush drive mechanism. In FIG. 4, the contact angle of the brush 13 is 0 ° to 1 °.
In the region around 5 °, that is, as the contact angle increases in the process of K1 in FIG. 4, the number of trapped lint increases. On the other hand, when the contact angle of the brush 13 exceeds about 15 °, that is, as the contact angle increases in the process of K2 in FIG. 4, the number of trapped lint decreases gradually. Here, when the contact angle of the brush 13 is 15 °, the number of catches of the lint is the highest value D1, when the contact angle is 0 °, the catch number is the lowest value D3, and when the contact angle is 90 °, the catch is 90 °. The number indicates the intermediate value D2 of those values. This is because, as the contact angle of the brush 13 increases in the process of K1 described above, the biting effect of the tip of the brush 13 against the floor surface is promoted, and lint entangled in the back of the hair of a carpet or the like. This is because the action of efficiently scooping up works. On the other hand, K2
In the process, as the contact angle of the brush 13 increases, the edge effect at the tip of the brush 13 becomes excessive and the action of pushing in lint entangled in the back of hair such as a carpet works. From these experimental results, it is an appropriate arrangement condition that the tip of the brush 13 is positioned so as to contact the floor surface of a carpet or the like at a predetermined angle of, for example, about 15 °.

As described above, by the scooping action of the brush 13 of the brush driving mechanism 24, the dust entangled in the back of the hair of a carpet or the like is efficiently scooped up and soared into the air, and the dust is sucked through the suction port 31. By sending the dust to the main body of the vacuum cleaner through the suction passage 25 while being put on the wind, a suction port body of the vacuum cleaner with high dust collection efficiency can be obtained. Further, the brush driving mechanism 24 is a small and simple mechanism with the above-described configuration, and is compactly stored in the suction port body 12.

Embodiment 2 FIG. 5 is a side sectional view showing Embodiment 2 of the suction port body of the present invention. FIG.
, The same reference numerals as those in the first embodiment denote the same or corresponding parts. Here, the upper part of the brush 13 of the brush drive mechanism 24 is covered with the partition member 22. The configuration of the brush drive mechanism 24 is the same as that of the first embodiment. With this configuration, when the main body (not shown) of the cleaner starts operating, air flows from the floor surface of a carpet or the like to the suction pipe 21 through the suction passage 25. In this process, the tip of the brush 13 of the brush drive mechanism 24 moves up and down while making contact with the floor surface of a carpet or the like at a predetermined angle of, for example, about 15 °, as in the first embodiment. The lint and the like entangled in the back of the hair are captured. At this time, most of the dust such as lint is sent from the suction port 31 of the suction port body 12 to the dust collection chamber (not shown) of the main body of the cleaner through the suction passage 25, but some of the dust is generated by the brush 13. They adhere in a state perpendicular to the longitudinal direction of the hair. Thereby, the brush 1 for the floor surface
The edge effect of No. 3 is reduced, and the scooping action is weakened.

However, since the upper part of the brush 13 is covered by the inner wall of the partition member 22, the suction air from the suction port 31 is perpendicular to the side of the brush 13, that is, the longitudinal direction. After colliding with the inner wall of the brush 13, the brush 13 travels along the side of the brush 13 toward the suction passage 25. In this process, the suction air collides with dust, such as lint, which adheres in a state perpendicular to the longitudinal direction of the brush 13, so that the dust is removed by wind pressure. The dust removed by the wind pressure is applied to the suction passage 2
5 is led to the suction pipe 21. Therefore, there is almost no accumulation of dust on the brush 13, and the scooping action of the brush 13 can be maintained to obtain a suction port body of a vacuum cleaner with high dust collection efficiency.

Embodiment 3 FIG. 6 is a side sectional view showing Embodiment 3 of the suction port body of the present invention. FIG.
, The same reference numerals as those in Embodiment 1 or 2 denote the same or corresponding parts. Here, an exhaust circulation type in which the brush driving mechanism unit 24 collides exhaust from a main body (not shown) of the cleaner with the floor surface through an exhaust path and returns exhaust after collision to the main body through an intake path. It is stored in the suction port body. The configuration of the brush drive mechanism 24 is the same as that of the first embodiment.

In FIG. 6, a first partition member 32 is provided in the suction port body 12, and a storage chamber 33 is disposed. In the storage chamber 33, the vibration member 16 forming the brush driving mechanism 24 is provided.
And the connecting member 17 are housed. A second partition member 34 is provided at a predetermined interval above the first partition member 32, and is provided in an exhaust passage 35 formed between the first partition member 32 and the second partition member 34. A support member and a support plate for supporting the brush are arranged. In addition, the brush 13 is disposed in an intake path 36 formed between the inner wall portion of the suction port body 12 and a second partition member 34 provided therebelow.

Further, as shown in FIG. 7, a plurality of holes 37 are formed at predetermined intervals along the longitudinal direction of the support plate 15 supporting the brush 13 disposed in the exhaust path 35. With this configuration, the exhaust gas from the main body passing through the exhaust passage 35 smoothly flows and passes through the plurality of holes 37 and the space 38 formed between the support plate 15 and the support member 16, so that the floor surface is Collide efficiently. Then, the exhaust gas colliding with the floor is returned to the main body through the intake path 36. In this process, the brush 13 of the brush mechanism unit 24 moves up and down while in contact with the floor surface at a predetermined angle of, for example, about 15 °, so that dust such as thread debris entangled in the carpet hair can be efficiently removed. The dust is scooped up, and the dust can be guided from the suction port 37 to the main body through the suction path 36. Therefore,
A suction port of a vacuum cleaner having high dust collection efficiency can be obtained.

[0024]

Since the present invention is configured as described above, it has the following effects.

[0025] The suction opening of the vacuum cleaner according to the present invention comprises:
A brush body having a brush that extends in the front-rear direction of the suction port body and that is inclined with respect to the cleaning surface and is opposed to the cleaning surface is rotatably supported on the suction port body that opens the suction port, and the brush body is at least the brush body. The tip is opposed to the suction port, and the drive means for reciprocating and rotating the brush in the vertical direction is provided, so that, for example, the dust entangled in the back of the hair such as a carpet can be efficiently pushed. The dust can be scooped and soared in the air, and the dust can be sent to the main body of the cleaner, so that the dust collection efficiency of the suction port body can be improved.

Further, since the guide wall of the suction air flow from the root to the tip of the brush is provided inside the suction opening of the brush body facing the brush, dust such as lint attached to the brush is removed. Can be removed by wind pressure.
Due to this, dust hardly accumulates on the brush,
The scooping action of the brush against dust on the floor surface is maintained, and the dust collection efficiency of the suction port body can be improved.

Also, the brush of the brush body is made to face the cleaning surface at an angle of about 15 °, so that the edge effect at the tip of the brush is promoted, and lint entangled in the back of the hair of a carpet or the like is removed. It can be scooped up efficiently.

Further, the brush body is tilted above the horizontal plane when the tip of the brush rotates upward, so that dust such as thread waste scooped up at the tip of the brush is sucked into the suction port body. It is possible to improve the dust collection efficiency of the suction port body by vigorously flowing the gas from the suction port.

Further, since the brush of the brush body is formed in a comb shape, dust on the floor surface can be efficiently scooped up, and the dust collection efficiency of the suction port can be improved.

Further, a brush having a brush which has a suction opening and a brush which extends in the front-rear direction of the suction opening and which is inclined with respect to the cleaning surface is provided at the suction opening which forms the exhaust air passage of the circulation air passage. The brush body is rotatably supported, and the brush body is provided with driving means for causing at least the tip of the brush to face the suction port and reciprocating and rotating the brush in a vertical direction, and moving the brush from the root to the tip. Since it was made to face the suction air path, dust can be efficiently scooped up and fly up in the air, and at the same time, the blown dust collides with the floor surface and can be sent to the main body side of the vacuum cleaner, The dust collection efficiency of the suction port body can be increased.

[Brief description of the drawings]

FIG. 1 is a bottom cross-sectional view showing a structure of a suction opening body of a vacuum cleaner according to Embodiment 1 of the present invention.

FIG. 2 is a side cross-sectional view showing a structure of the suction port according to the first embodiment.

FIG. 3 is a perspective view showing a structure of a suction port according to the first embodiment.

FIG. 4 is a diagram illustrating dust removal characteristics of the suction port according to the first embodiment.

FIG. 5 is a side sectional view showing a structure of a suction port according to a second embodiment.

FIG. 6 is a side sectional view showing a structure of a suction opening according to a third embodiment.

FIG. 7 is a perspective view showing one component of a suction port according to a third embodiment.

FIG. 8 is a bottom sectional view of a suction port body in a conventional vacuum cleaner.

FIG. 9 is a side sectional view of one component of a conventional suction port body.

[Explanation of symbols]

1 suction port body, 2 rocking plate, 3 bearings, 4 support shafts,
5 cylindrical rod, 6 drive, 7 suction pipe,
8 ring-shaped coil, 9 ring-shaped ferromagnetic material, 10
Connecting shaft, 11 Movable brush, 12 Suction port, 13
Comb-shaped brush, 14 plural supporting members, 15 supporting plates,
Reference Signs List 16 diaphragm, 17 connecting member, 18 bottom plate, 19 front wheel, 20 rear wheel, 21 suction pipe, 22 partition member, 23 storage room, 24 brush drive mechanism, 25 suction path, 26 mounting table, 27 motor, 28 rotation Board, 2
9 Projection, 30 Slot, 31 Suction Port, 32 First Partition Member, 33 Storage Room, 34 Second Partition Member, 35
Exhaust path, 36 suction path, 37 multiple holes, 38 space.

Continued on the front page (72) Inventor Teruo Nakamura 2-3-2 Marunouchi, Chiyoda-ku, Tokyo F-term in Mitsubishi Electric Corporation (reference) 3B061 AD05 AD11 AH02

Claims (6)

[Claims] 1. A brush body having a brush that extends in the front-rear direction of the suction port body and that is inclined and opposed to a cleaning surface is rotatably supported on a suction port body that opens the suction port, The brush body is provided with a drive means for causing at least a tip end of the brush to face the suction port, and having a driving means for reciprocating and rotating the brush in a vertical direction. 2. The electric cleaning device according to claim 1, wherein a guide wall for a suction air flow from a root portion to a tip portion of the brush is provided inside the suction port body facing the brush of the brush body. Machine suction body. 3. A brush according to claim 1, wherein the brush of the brush body faces the cleaning surface at an angle of about 15 °.
The suction body of the vacuum cleaner described. 4. The suction device according to claim 1, wherein the brush body is inclined above a horizontal plane when the tip of the brush rotates upward. Mouth. 5. The suction port body for a vacuum cleaner according to claim 1, wherein the brush of the brush body has a comb shape. 6. A suction port body having a suction port opened and forming an exhaust air path of a circulation air path, a brush extending in the front-rear direction of the suction port body and facing obliquely with respect to a cleaning surface. The brush body is rotatably supported, and the brush body is provided with driving means for causing at least a tip of the brush to face the suction port and reciprocating and rotating the brush in a vertical direction, and a root of the brush. A suction opening body for a vacuum cleaner, characterized in that a front end portion thereof faces a suction air passage.