JPH03112531A - Suction port member of vacuum cleaner - Google Patents

Abstract

PURPOSE:To reduce noise and to stably and surely operate a vibrator body which is attached to a suction port member and in which a plurality of beaters are held on a resilient shaft, by vibrating the resilient shaft with the use of a vibration exciter provided in the suction port member. CONSTITUTION:When a magnetic force is effected by an energized electromagnet 82, a diaphragm 85 made of magnetically transmissible materials is attracted to the electromagnet 82, and accordingly, a resilient plate 83 flexes resilient toward the electromagnet 82. Further, a coupling member 86 and the resilient shaft 73 of a vibrator body 71 are moved in the same direction or the upward direction. When the electromagnet 82 is deenergized, the resilient plate 83 and the resilient shaft 73 flex in the opposite direction or the downward direction. With the repetitions of these steps, the resilient shaft 73 of the vibrator body 71 vibrates vertically at a frequency of 50Hz or 60Hz together with a vibration exciter 88. Further, a vibration roller 72 on the vibrator body 71 beats a straw mat so as to remove fine dust from the weaves of the straw mat.

Description

[Detailed Description of the Invention] [Object of the Invention] (Industrial Application Field) The present invention relates to a suction port body of a vacuum cleaner used for cleaning floors, etc. This invention relates to a driven tool.

(Prior Art) Conventionally, as a floor suction port body for a vacuum cleaner equipped with a driven tool that releases dust from a surface to be cleaned, particularly from a folding surface, there has been known one shown in FIG. 9, for example.

In the suction port body of this vacuum cleaner, a suction chamber 2 and a communication chamber 3 are divided into a suction port body 1, and a suction port 4 is opened on the lower surface of the suction port body 1 facing the suction chamber 2. At the same time, there is a connecting pipe 5 at the rear of the suction port body 1 facing the communication chamber 3.
is connected.

This connecting pipe 5 is connected to the dust collection chamber of the cleaner body via a hose or the like. And the suction chamber 2
Three vibrating rollers 9.10.11 each supported by a shaft 6.7.8 made of an elastic body such as a piano wire.
It has a structure in which it has an approximately triangular shape when viewed from the side. In addition, the upper pongee 6 at the apex of the triangle
is made of an elastic body that is weaker than the other two lower shafts 7 and 8.

Then, in a state where no suction force is generated, the three rollers 9, 10. -11, the outer peripheral surfaces are in contact with each other and the suction port 4 is sealed.

However, when a suction force is generated in the communication chamber 3 as shown by the thick arrow due to the operation of the electric blower inside the vacuum cleaner body, the shaft 6 made of a weak elastic body first bends upward as shown by the chain line. Vibrating roller 9 and other vibrating rollers 1 [1, 11
There will be a gap between the two. When this gap is created, air flows in through the gap, the degree of vacuum in the communication chamber 3 decreases, and the elasticity of the shaft 6 causes the vibrating roller 9 to return to its original position, and the vibrating roller 1o.

11, these vibrating rollers 10.1+ vibrate.

That is, when the three vibrating rollers 9.10.1.1 come into contact with or approach each other, the degree of vacuum in the communication chamber 3 increases, the vibrating roller 9 is pulled upward, and the vibrating roller 9.
10.11 separate from each other, the degree of vacuum in the communication chamber 3 decreases, the vibrating roller 9 returns downward, and the vibrating rollers 1G,
Hit II. This series of operations will be repeated. Then, a vibrating roller 10. Cleaning is done while +1 is hitting the tatami.

(Problems to be Solved by the Invention) However, in the suction port of the folding vacuum cleaner as described above, there is a problem in that the collision sound of the vibrating rollers 9, 10, and 11 is generated and the noise is large. In addition, since the vacuum cleaner's suction power is directly used, the conditions for vibration are delicate, and the activation of the vibrating rollers 9, 10, and 11 is unstable, and the shaft 6 is adjusted to suit the performance of the vacuum cleaner. There was a problem in which the elasticity of .7.8 had to be adjusted. That is, when the suction force changes, the three vibrating rollers 9.10. There were cases where all the IIs were held in a raised state or moved together, making it difficult to obtain stable operation.

The present invention aims to solve the above-mentioned problems, and provides a vibrating body that operates stably and reliably for releasing dust from the surface to be cleaned, and that this vibrating body has high durability. An object of the present invention is to provide a suction port body for a vacuum cleaner that has good manufacturability and can reduce noise.

Furthermore, it is an object of the present invention to make the suction port body of this vacuum cleaner cheaper and to increase its versatility with respect to power supply conditions.

[Structure of the invention]

(Means for Solving the Problems) The present invention provides a suction port body having an air passage inside and a suction port communicating with the air passage opened on the lower surface, and a suction port body that has an air passage inside the suction port body and a vacuum cleaner. An electric vacuum cleaner comprising a connecting pipe communicating with the dust collection chamber of the main body, and a vibrating body having a plurality of beaters rotatably held on an elastic shaft made of an elastic body installed at the bottom of the suction port main body. In order to achieve the former purpose in the suction port body of the machine, an excitation device for vibrating the elastic axis of the vibrating body is provided in the suction port body, and this vibration device also The vibrating body is supported by an elastic support such as a plate spring so as to be able to vibrate in the vertical direction and is connected to the elastic shaft, and the connecting portion of the vibrating body to the elastic support and the elastic At least a portion of the connecting portion to the shaft is formed of a magnetically permeable member such as an iron plate, and an electromagnet that generates magnetic force at a constant frequency is disposed near the magnetically permeable member.

Furthermore, in order to achieve the latter objective, a rectifying element connected in series between the electromagnet and the AC power source is used as a magnetic force generation control means for causing the electromagnet to generate magnetic force at a constant frequency, and The resonance frequency of the vibration system consisting of the vibrating body, the vibrating body, and the elastic support is 60Hz or more and 60H.
It is preferable to set it near z.

(Function) In the suction port body of the vacuum cleaner of the present invention, the electromagnet of the vibrating device generates magnetic force at a constant frequency. When some of the magnetically permeable members between the parts receive the magnetic force, the vibrating body supported by the elastic support on the suction port body vibrates in the vertical direction, and the vibrating body connected to the vibrating body vibrates in the vertical direction. The elastic shaft is excited and vibrates in the vertical direction. This results in
A plurality of beaters rotatably held on this elastic shaft strike the surface to be cleaned, such as a folding door, at the lower part of the suction port body, knocking out dust from the surface to be cleaned and releasing it. In this way, the dust that has been knocked out is guided from the suction port to the dust collection chamber of the vacuum cleaner main body via the air passage and the connecting pipe within the suction port main body. In addition, even if the vibrating body hits a convex part on the surface to be cleaned when cleaning without operating the vibrating body, the impact will be absorbed by the elastic shaft and elastic support. Ru.

Furthermore, in the suction port body of the vacuum cleaner according to claim 2, the rectifying element connected in series between the electromagnet and the AC power source causes a current obtained by half-wave rectification of the AC current to flow through the electromagnet. An electromagnet generates a magnetic force at a constant frequency. By the way, the resonance magnification of the vibration of a vibrating body reaches its maximum due to resonance when the frequency of magnetic force generation matches the resonance frequency of the vibration system consisting of the vibrating body, the vibrating body, and the elastic support, and the frequency of magnetic force generation is The further it deviates from the resonance frequency, the smaller it becomes. At this time, when the frequency of generation of magnetic force deviates from the resonance frequency to a smaller value, the resonance magnification decreases to 1, but when the frequency of generation of magnetic force deviates from the resonance frequency to a larger value, the resonance magnification rapidly decreases to 0. becomes smaller. However, the resonance frequency of the vibration system is 60tb or more and 608! Because it is nearby,
When the frequency of the AC power source is 601 (t), the vibrating body vibrates efficiently, and the frequency of the AC power source is 50Hz.
Even in this case, the vibrating body vibrates with some degree of efficiency.

(Example) Hereinafter, the structure of an example of the suction port body of a vacuum cleaner of the present invention will be described based on FIGS. 1 to 6.

21 is a suction port main body, and this suction port main body 21 is formed by combining a lower case 22 and an upper case 23. In the suction port main body 21, there are partition walls 24, 25, 2.
6, a suction chamber 27 forming an air path is partitioned on the front side, and an excitation device chamber 28, an air path chamber 29 forming an air path, and a motor room 30 are arranged in this order in the left-right direction on the rear side. Compartments are formed. The suction chamber 27 and the air passage chamber 29 are communicated with each other through a communication port 31 formed in the partition wall 24 extending in the left-right direction. In addition, the suction chamber 27
A suction port 32 is formed in the lower surface of the suction port main body 21 when facing the suction port body 21, and openings 33 and 34 are formed on the left and right sides of the suction port 32, respectively. Furthermore, on the outer lower surface of the suction port main body 21,
One opening 3 from the left and right sides of this suction port body 21
4, and a second air passage groove 35b communicating from the rear of the opening 34 to the rear corner of the suction port 32 is formed.

Further, on the outside of the lower surface of the suction port main body 21, a pair of left and right front grounding wheels 36 are pivoted to the front edge, and a pair of left and right rear grounding wheels 37 are pivoted to the rear edge. There is.

Further, a first connecting pipe 41 extending from the inside of the air passage chamber 29 to the rear outside is connected to the rear center of the suction port main body 21 so as to be movable up and down. That is, the rotation shafts 42 formed on both sides of the front part of the first connecting pipe 41 rotate between both cases 2 at the partition walls 25 and 26 on both sides of the air passage chamber 29.
It is rotatably held by 2.23. Further, the front part of a bent second connecting pipe 43 is connected to the rear part of the first connecting pipe 41 so as to be rotatable in the circumferential direction. Note that both connecting pipes 41 and 43 are prevented from being removed by a connecting ring 44. The second connecting pipe 43 is an extension pipe connected to the vacuum cleaner main body (not shown) via a hose, and is removably fitted and connected to the rear part of the second connecting pipe 43.
The inside of the air passage chamber 29 and the dust collection chamber in the vacuum cleaner main body are communicated through the hose and the extension pipe.

Moreover, three connecting pins 45 are provided on the rear outer side of the second connecting tube 43, respectively, to contact three pin receivers provided on the extension tube.

From these connection pins 45, a power supply line to the inside of the suction port body 2I is provided by a lead wire (not shown).

Further, in the suction chamber 27 of the suction port main body 21, facing the suction port 32, a main rotating brush 51 is rotatably supported with the left-right direction as a rotation axis direction.

That is, rotating shafts 52 fixed to both left and right ends of the main rotating brush 51 are supported by bearings 53, and these bearings 53 are supported by the suction port body 21. Further, auxiliary rotating brushes 54 and 55 are fixed to each of the rotating shafts 52 and located outwardly from the bearings 53 and facing the respective openings 33 and 34, respectively. moreover,
A gear-shaped pulley 56 is located between one of the bearings 53 and the auxiliary rotating brush 55 and is fixed to the rotating shaft 52 . The rotating brush 51, 54, 55 has a plurality of bristles 57, 58, 59 planted on its outer peripheral surface.

Further, an electric motor 61 is disposed in the electric motor chamber 30 within the suction port body 21 as a drive source for rotationally driving the rotary brushes 51, 54, and 55. A belt 64 for transmitting rotation is passed between a gear-shaped pulley 63 fixed to the output rotating shaft 62 of the electric motor 61 and the pulley 56 of the rotating brush 51, 54, 55.

Further, a vibrating body 71 is disposed in parallel with the rotating brushes 51, 54, 55 at a position behind the suction chamber 27 and in front of the rear grounding wheel 37 on the outside of the lower surface of the suction port main body 21. There is. This vibrating body 71 includes a plurality of cylindrical vibrating rollers 72 as beaters arranged in the axial direction with almost no gaps, and an elastic shaft 73 passing through the centers of these vibrating rollers 72 in the axial direction. and two fixed bodies 74 for tensioning this elastic shaft 73 on the lower case 22.
It is composed of. The elastic shaft 73 is made of a cylindrical elastic body such as a piano wire, and holds each of the vibrating rollers 72 rotatably.

On the other hand, a storage recess 76 is formed on the lower surface of the lower case 22 of the suction port main body 21 at a position corresponding to the front end of the air passage chamber 29, and extends in the left-right direction along the rear side of the suction port 32. The suction port 32 is located at the lower front of the recess 76.
A plurality of notches 77 are formed leading to. and,
The vibrating body 71 is disposed in the storage recess 76, and the fixing bodies 74 at both ends of the elastic shaft 73 are located at both ends of the recess 76 and engage the locking bodies 74 formed on the lower case 22. It is locked and fixed by a claw 78. In the natural state, the lower part of the vibrating roller 72 projects downward from the storage recess 76.

Further, in the vibration device chamber 28 in the suction port main body 21, that is, in a position opposite to the electric motor 61 and the air passage chamber 29, a vibration device 8 for vibrating the elastic shaft 73 of the vibrating body 71 is provided.
is installed. Next, this vibration device 81 will be explained.

An electromagnet 82 is provided in the vibration device chamber 28, and behind the electromagnet 82, the rear end of an elastic plate 83, which serves as an elastic support made of an elastic body such as a plate spring, is attached to the lower case 22. It is fixed by a screw 84. A rear end of a diaphragm 85 made of a magnetically permeable member such as an iron plate located near the lower side of the electromagnet 82 is fixedly connected to the front end of the elastic plate 83 on the free end side. Further, the rear end of a connecting body 86 is fixed to the front end of the diaphragm 85, and the front end of the connecting body 86 is inserted through a through hole 87 formed in the upper part of the storage recess 76. It is connected to the middle part of the elastic shaft 73 of the vibrating body 71. In this way, the diaphragm 85 and the connecting body 86 are connected to the suction port main body 2.
1 constitutes a vibrating body 88 which is supported by an elastic plate 83 so as to be able to vibrate vertically and is connected to the elastic shaft 73.

The resonant frequency of the entire vibration system including the vibrating body 71, the vibrating body 88, and the elastic plate 83 is determined by the elasticity of the elastic plate 830, the weight of the vibrating body 88 and the vibrating body 71, and the elasticity and length of the elastic shaft 73. It depends on the sato, but 608! Over 60
It is set near flx.

Further, a switch 91 for controlling power supply to the electromagnet 82 is provided in the vibration device chamber 28 . A pair of buttons 92 and 93 for turning on and off the switch 91 are located above the switch 91 in the upper case 23, and a plate spring 94 is integrally formed with the button 92 and 93 for turning the switch 91 on and off.
It is provided so as to be biased upward by. Furthermore, the vibration beater 71 or the rotary brush 51.54.5 is located in the upper case 23 in front of the button 92.93.
A pair of light emitting diodes 95 and 96 are provided so as to emit light toward the upper surface of the upper case 23, which are turned on or off as the case 5 is activated or stopped.

Next, the configuration of the electric circuit will be explained with reference to FIG.

This is a rectifying element as a magnetic force generation control means that causes the electromagnet 82 to generate magnetic force at a constant frequency between the poles of a 100V AC power supply supplied from the vacuum cleaner body via the hose 101 and the power supply line in the extension tube 102. diode 103
The switch 91 and the electromagnet 82 are connected in series. Further, another switch 104 and a motor 61 for the rotating brushes 51, 54, and 55 are connected in series between both poles of the same AC power source. Note that the switch 104 for the electric motor 61 is disposed at the grip portion of the hose 101. Furthermore, a resistor 10 is connected in parallel with the electromagnet 82.
5, the diode 106, and the light emitting diode 95 are connected in series. Further, in parallel with the electric motor 61,
Resistor 107, diode 108, and the light emitting diode 9
6 are connected in series.

Next, the operation of the above embodiment will be explained.

During cleaning, the vacuum cleaner body, the hose, the extension pipe, and the connection pipe 43 of the suction port body are connected to each other, and the grip part of the hose is held.

Then, the grounding wheels 36 and 37 are grounded on the surface to be cleaned, and the suction port body 21 is caused to travel.

Then, by driving the electric blower inside the vacuum cleaner body, the dust sucked in with the air from the suction port 32 is removed from the suction chamber 27.
, the air passage chamber 29, the connecting pipes 41, 43, the extension pipes and the hoses, and are guided into the dust collection chamber of the vacuum cleaner.

Here, the rotating brushes 51, 54, 55 can be activated or stopped by operating the switch 1θ4 on the hose, and the vibrating body 71 is connected to the suction port body 2.
By operating the switch 91 located at 1, the rotating brushes 51, 54, and 55 can be activated or stopped independently, but if the surface to be cleaned is a wooden floor, both switches 91, 104 can be activated or stopped. It is preferable to perform cleaning with both the rotating brushes 51, 54, and 55 and the vibrating body 71 stopped by turning them off.

On the other hand, when cleaning the tatami mat, it is preferable to operate the vibrating body 71 to perform the cleaning. For example, - button 92
When the switch 91 is turned on by pressing , the light emitting diode 95 lights up and the vibrating body 71 is activated.

When the switch 91 is in the on state, the alternating current from the alternating current power source flows through the diode +03 as shown on the upper left side of FIG.
As shown in the upper left side of FIG. 6, the current is half-wave rectified, and this half-wave rectified current flows into the electromagnet 82. This current generates a magnetic force, which changes in cycles of a commercial frequency of 50Hx or 60Hx.

Then, when a current flows through the electromagnet 82 and magnetic force is generated,
In response to this magnetic force, the diaphragm 85 made of a magnetically permeable member is pulled toward the electromagnet 82, and the elastic plate 83 is elastically bent in the direction of the electromagnet 82. As shown by the chain line in FIG. The elastic shaft 73 of the vibrating body 71 also moves in the same direction, that is, upward. Then, when the current stops flowing, the magnetic force disappears, and the restoring forces of the elastic plate 83 and the elastic shaft 73 cause each member to return to its original position as shown by the solid line in FIG.
Since an inertial force acts due to the mass of the vibrator 88 and the vibrating roller 2, the elastic plate 8
3 and the elastic shaft 73 are deflected in the opposite direction, that is, downward.

Next, when a current flows through the electromagnet 82, an attractive force by the electromagnet 82 is added to the same inertial force as described above, and the elastic plate 83 and the elastic shaft 73 are bent toward the electromagnet 82 again. By repeating this, the elastic shaft 73 of the vibrating body 71 vibrates in the vertical direction together with the vibrating body 88 at 50 Hz or 60 Hx.

Then, the vibrating roller 72 of the vibrating body 7I that vibrates in this manner hits the tatami mat, and even fine dust that has entered the tatami mats is efficiently knocked out and released. Note that the dust knocked out by the vibrating body 71 is removed from the storage recess 76.
It is sucked in from the suction port 32 through the notch 77 at the lower front of the .

Note that since the vibrating roller 72 is rotatable, twisting of the elastic shaft 73 is prevented.

To stop the vibrating body 71, press the other button 93 to turn the switch 91 off.

Also, when cleaning a carpet, the rotating brush 51
．． It is recommended to operate 54 and 55 for cleaning. When the switch 104 is turned on, the light emitting diode 96 lights up and the electric motor 61 is turned on, and the rotational force of the electric motor 61 is transmitted through the belt 64 to the rotating brushes H,
54, 55, and the rotating brushes 51, 54.
55 rotates and scrapes dust from the carpet.

At this time, if the vibrating body 71 is also activated, the rotating brush 5
1.54.55 is added to the knocking effect by the vibrating body 71, so the ability to remove fine dust entangled in hair deep inside the carpet is improved.

By the way, since it is not preferable to expose the belt 64 to the suction air path on the side where the belt 64 is located, the main rotating brush 51 and the auxiliary rotating brush 55 located on both sides of the belt 64 are
It is not possible to connect the suction port 32 and the opening 34, which face each other. However, air passage grooves 351 and 3 extend between the side surface of the suction port main body 2I, the opening 34, and the suction port 32.
5b, and these air passage grooves 35a.

Since the suction air path is formed by 35b, the dust scraped out by the auxiliary rotating brush 55 can be smoothly sucked into the suction port 32. Note that the opening 33 and the suction port 32 on the opposite side may be connected. In this case, the bearing on the side of the auxiliary rotating brush 54 is preferably provided outside the auxiliary rotating brush 54 in the axial direction.

Furthermore, even if the vibrating body 71 collides with a convex part of the surface to be cleaned while the suction port main body 21 moves while cleaning without operating the vibrating body 71, the impact at that time will be
It is absorbed by the elastic shaft 73 and the elastic plate 83. Therefore, damage to the vibrating body 71 and the like is prevented.

According to the configuration of the above-described embodiment, it is possible to clean both the tatami mat and the carpet while efficiently releasing dust using one suction port body.

Moreover, since the vibrating body 71 is not actuated directly by the suction force, but is actuated by the vibrating device 81, the vibrating body 71 operates stably and reliably.

In addition, the conventional vibrating roller 9.10. Since there is no conflict between the 11 comrades, there will be less noise. Since it is supported by the elastic plate 83 having elasticity, it is also possible to prevent the occurrence of contact noise between the vibrating roller 72 and the lower case 22.

Furthermore, since the vibration and stop of the vibrating body 71 and the rotation and stop of the rotating brushes 51, 54, and 55 can be controlled independently, it is possible to use four modes as described above, which is convenient. . Moreover, mutual switching between these four modes is also easy.

By the way, in order to vibrate the vibrating body, it is also possible to use a rotary electric motor as a drive source, convert the rotation into vibration using an eccentric weight or an eccentric cam, and transmit the vibration to the vibrating body. However, mechanical motion conversion mechanisms such as eccentric weights or eccentric cams have contact parts such as cams and sliding parts, so strength and wear resistance must be taken into consideration. Moreover, the sliding parts must be made of metal, which makes selection of materials difficult and tends to be expensive. Furthermore, in manufacturing,
Strict dimensional control is required.

On the other hand, according to the above configuration, since the electromagnet 82 is used as the driving source for the vibrating body 71, there is no abutting part or sliding part, so the operation noise can be made quieter, and there is no problem of wear and damage. Less likely to occur, improving reliability. In addition, materials can be easily selected and strict dimensional control is not required, improving manufacturability and reducing costs.

Further, in the above embodiment, only the diode 103 connected in series between the electromagnet 82 and the AC power source was used as the magnetic force generation control means for causing the electromagnet 82 to generate magnetic force at a constant frequency. , an oscillator may be used. However, if an oscillator is used, the circuit configuration becomes extremely complicated and expensive. On the other hand, as in the above embodiment, the diode 10 is used as the magnetic force generation control means.
If only 3 is used, the circuit configuration etc. can be simplified and the cost can be reduced.

By the way, the graph in FIG. 7 is a resonance curve, which shows the frequency at which the magnetic force is generated by the electromagnet 82 and the resonance frequency of the vibration system consisting of the vibrating body 71, the vibrating body 88, and the elastic plate 83 when the resonance frequency is a 60H window. The relationship between the vibration of the vibrating body 71 and the resonance magnification (vibration force) is shown. As shown in the figure, the resonance magnification is maximized due to resonance when the frequency of magnetic force generation matches the resonance frequency, and becomes smaller as the frequency of magnetic force generation deviates from the resonance frequency.

At this time, when the generation frequency of magnetic force deviates from the resonance frequency to a smaller value, the resonance magnification decreases to 1, but when the generation frequency of magnetic force deviates from the resonance frequency to a larger value, the resonance magnification rapidly decreases to 0. becomes smaller. For example, if the frequency at which the magnetic force is generated is 70H or more, the vibrating body 71 hardly vibrates.

Second, if the magnetic force generation control means is an oscillator, the frequency at which the magnetic force is generated by the electromagnet 82 should match the resonance frequency of the vibration system, regardless of whether the frequency of the AC power source is 50 Hz or 60 Hz. This is possible relatively easily. On the other hand, when the magnetic force generation control means is only the diode 103 as in the above embodiment, the generation frequency of the magnetic force is equal to the frequency of the AC power supply, and the frequency of the magnetic force generation is equal to the frequency of the AC power supply. It is not possible to adjust the frequency of magnetic force generation. Therefore, the frequency of the AC power source is 50'R
x or 60[1 s] (in either case, the generation frequency of the magnetic force does not match the resonant frequency).

However, in the above embodiment, the resonance frequency is set to 50Hz.
Since the frequency of the AC power source is 60Hg, the vibrating body 71
Not only can it vibrate with the highest efficiency, but also 1
．． Even when the frequency of the AC power source is less than 50H, the vibrating body 71 can be vibrated with some degree of efficiency.
It can be made into a highly versatile suction port body that can be used for both z and 60[1π. As mentioned above, when the frequency of magnetic force generation deviates from the resonant frequency to a larger extent, the resonance magnification decreases more rapidly, so when considering the error, it is recommended to set the resonant frequency slightly higher than 60 Hz. It's safe. That is, it is preferable that the resonance frequency is at least 60H and around 601 mushrooms.

FIG. 8 shows another embodiment of the present invention. In this embodiment, the front side of the suction port 32 on the outside of the lower surface of the suction port main body 21, that is, the side opposite to the air passage chamber 29 with the rotating brush 51 in between. A vibrating body 71 is disposed at the position.

For this purpose, the connecting body 86 is extended forward and the rotating brush 51
It is connected to the front vibrating body 71 through the lower part of the .

The operation of this other embodiment is the same as that of the previous embodiment, but in addition, by positioning a vibrating body 71 in front of the rotating brush 51, this vibrating body 71 is vibrated to clean the folds and carpets. For example, when the suction port body 21
When the front surface of the vibrating body 71 is placed along the wall, the vibrating body 71 knocks out dust from the surface to be cleaned even at a position closer to the wall where the rotating brush 51 cannot reach, thereby improving the ability to remove dust near the wall.

Note that the suction port body of both of the above embodiments has a rotating brush 51.5 as a driven tool for releasing dust from the surface to be cleaned.
4.55, however, the suction port body to which the present invention is applied may be provided with only the vibrating body 71 without the rotating brushes 51, 54, and 55.

〔Effect of the invention〕

According to the present invention, the following effects can be obtained.

In the suction port body of a vacuum cleaner according to claim 1, the elastic shaft of the vibrating body having a plurality of beaters held on the elastic shaft installed on the suction port body is excited by the vibration excitation device provided on the suction port body. Because it vibrates, it produces less noise (as well as
The operation of the vibrating body can be made stable and reliable,
Further, the vibrating device has a vibrating body supported by the suction port body by an elastic support and connected to the elastic shaft, and at least a part of the vibrating body is formed of a magnetically permeable column member, Since an electromagnet that generates magnetic force at a constant frequency is arranged near this magnetically permeable member, productivity is improved compared to the case where the vibrating body is driven by a rotary electric motor via an eccentric cam or the like. , can be done at low cost, and can also reduce noise. In addition, even if the vibrating body hits a convex part on the surface to be cleaned when cleaning without operating the vibrating body, the impact will be absorbed by the elastic shaft and the elastic support. By doing so, it is possible to prevent damage to the vibrating body and the like.

In addition, in the suction port body of the vacuum cleaner according to claim 2,
As a magnetic force generation control means that causes the electromagnet to generate magnetic force at a constant frequency, we used a rectifying element connected in series between the electromagnet and the AC power supply. The configuration can be simplified and the cost can be lowered, and the resonant frequency of the vibration system consisting of the vibrating body, the vibrating body, and the elastic support is set to 60 Hz or more and around 60 Ht, so the magnetic force caused by the electromagnet is reduced. Even though the generated frequency is equal to the frequency of the AC power supply,
When the frequency of the AC power source is 60 Hz, the vibrating body can not only be vibrated with almost the highest efficiency, but also when the frequency of the AC power source is 50 Hz, the vibrating body can be vibrated with a certain degree of efficiency, and 501IK and 601 (It can be shared with x.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing an embodiment of the suction port body of a vacuum cleaner according to the present invention, and FIG. 2 is a plan view of the same with the upper case removed.
Figure 3 is a plan view of the switch section, Figure 4 is a bottom view of the switch, Figure 5 is a cross-sectional view of the switch, Figure 6 is a circuit diagram of the switch, and Figure 7 is a cross-sectional view of the switch.
FIG. 8 is a longitudinal sectional view showing another embodiment of the present invention, and FIG. 9 is a longitudinal sectional view showing an example of a suction port body of a conventional vacuum cleaner. 21... Suction port body, 27... Suction chamber serving as air path, 29
・・Air duct room which becomes the air path, 32 ・・Suction port, 41. 43・
Connection pipe, 71... Vibrating body, 72... Vibrating roller as a beater, 73... Elastic shaft, 81... Vibrating device, 82...
Electromagnet, 83... Elastic plate as elastic support, 85...
Vibration plate made of a magnetically permeable member, 88... vibrating body, 103
...A diode that is a rectifying element. September 28, 1989 Inventor Masaru Nakanishi Ritsuo Takemoto Akihito Iwasa

Claims (2)

[Claims] (1) A suction port body that has an air path inside and has a suction port that communicates with this air path opened on the lower surface, and a connecting pipe that connects the air path inside this suction port body to the dust collection chamber of the vacuum cleaner main body. and a vibrating body having a plurality of beaters rotatably held on an elastic shaft made of an elastic body installed at the lower part of the suction port body; and a vibrating device that vibrates an elastic shaft, and the vibrating device has a vibrating body that is supported by the suction port main body so as to be able to vibrate in the vertical direction by an elastic support and is connected to the elastic shaft. and at least a portion of the vibrating body between the connecting portion to the elastic support and the connecting portion to the elastic shaft is made of a magnetically permeable member, and an electromagnet that generates magnetic force at a constant frequency in the vicinity of the magnetically permeable member. A suction port body for a vacuum cleaner, characterized by being arranged with. (2) The magnetic force generation control means that causes the electromagnet to generate magnetic force at a constant frequency consists of a rectifying element connected in series between the electromagnet and the AC power source, and consists of a vibrating body, an excitation body, and an elastic support. 2. The suction port body for a vacuum cleaner according to claim 1, wherein the resonance frequency of the vibration system is 60 Hz or more and around 60 Hz.