JP3849376B2 - Vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner used in general households.
[0002]
[Prior art]
FIG. 4 is an explanatory view showing a configuration of a conventional electric vacuum cleaner. A vacuum cleaner main body 12 houses the electric blower 14 and the dust collection chamber 13. The suction tool 1 is connected to the cleaner body 1 via a hose 11 having a handle 11 a and a suction tool attachment tube 10. Reference numeral 5 denotes a cleaning surface such as a carpet surface, a tatami surface, or a floor surface. Wheels 3 a and 3 b provided on the bottom surface of the suction tool 1 are in contact with the surface of the cleaning surface 5.
[0003]
FIG. 5 is a cross-sectional view for explaining the configuration of the suction tool 1 and the operation of the suction tool 1. FIG. 5A shows a state where the suction tool 1 is moving forward by the user's operation, and FIG. 5B shows a state where the suction tool 1 is also moving backward. The suction tool 1 has a suction port 2 provided on the bottom surface, the wheels 3 a and 3 b, and a connection pipe 4 communicating with the suction port 2. The connection pipe 4 is fitted to the suction tool attachment pipe 10. In addition, the suction tool 1 has a rotating brush for cleaning the carpet, and there is also a tool that scrapes out dust that has entered the hairs of the carpet by the rotation of the rotating brush.
[0004]
When the user moves the suction tool 1 forward or backward using the handle 11a, dust on the cleaning surface 5 or in the cleaning surface 5 is sucked from the suction port 2 provided in the suction tool 1, and the dust collecting chamber. 13 is accommodated. At this time, since the shielding plate 6 blocks the air passage behind the suction port 2 as shown in FIG. 5A, the dust suction force of the electric blower 14 acts on the front of the suction port 2. Is. Therefore, highly efficient dust collection can be performed.
[0005]
[Problems to be solved by the invention]
The conventional vacuum cleaner has a problem that the dust collecting ability cannot be sufficiently exhibited. That is, as shown in FIG. 5B, when the advancing direction of the suction tool 1 is on the shielding plate 6 side, the suction air is shielded by the shielding plate 6, and therefore the electric motor The dust suction force inherent to the blower 14 cannot be fully exhibited.
[0006]
[Means for Solving the Problems]
The present invention includes a vacuum cleaner body that houses an electric blower , a suction tool that is connected to the vacuum cleaner body and has a suction port, a front wheel for movement, and a rear wheel on a bottom surface, and a front and rear portion of the suction port. A sliding plate, a guide unit that houses the shielding plate and guides the vertical movement of the shielding plate, a clutch unit that suppresses the rotation of the rear wheel, and the rotation of the rear wheel via the clutch unit A transmission portion that transmits the shielding plate to the vertical movement of the shielding plate, and a compression spring that projects and urges the shielding plate into the guide portion in front of the suction port, or the shielding plate on the guide portion at the rear of the suction port. By providing at least one of the tension springs to be housed and urged in the guide part, when the suction tool moves forward, a load is applied downward, the rear wheel rotates, and the front part of the suction port is forwarded via the transmission part. The shielding plate is stored, The shielding plate behind the suction port protrudes and contacts the cleaning surface, and when the suction tool moves backward, the shielding plate in front of the suction port projects by the spring force of at least one of the compression spring or the tension spring. Since the shielding plate behind the suction port is housed in contact with the cleaning surface, no dedicated external movement force is required, and the movement of the shielding plate can be performed both forward and backward using the movement force of the suction tool. The vacuum cleaner is reliable and always capable of collecting dust in front of the traveling direction, so that the vacuum cleaner has high dust collection efficiency.
[0007]
DETAILED DESCRIPTION OF THE INVENTION
The invention described in claim 1 includes a vacuum cleaner body containing an electric blower , a suction tool connected to the vacuum cleaner body and having a suction port, a moving front wheel and a rear wheel on the bottom surface, and front and rear of the suction port. A shielding plate that is slidably moved up and down, a guide portion that houses the shielding plate and guides the vertical movement of the shielding plate, a clutch portion that suppresses the rotation of the rear wheel, and the clutch portion A transmission portion that transmits the rotation of the rear wheel to the vertical movement of the shielding plate, and a compression spring that projects and biases the shielding plate into a guide portion in front of the suction port, or a guide portion behind the suction port. By providing at least one of the tension springs that house and urge the shielding plate into the guide portion, when the suction tool moves forward, a load is applied downward, and the rear wheel rotates, via the transmission portion. Shielding in front of the inlet The plate is accommodated, the shielding plate behind the suction port protrudes to contact the cleaning surface, and at the time of reverse movement of the suction tool, at least one of the compression spring or the tension spring is provided in front of the suction port. Since the shielding plate protrudes and contacts the cleaning surface, and the shielding plate behind the suction port is housed, the rear wheel easily receives a load downward when the suction tool advances, and the clutch part and the clutch part are interposed therebetween. A transmission part that transmits the rotation of the rear wheel to the vertical movement of the shielding plate is provided, the rear wheel rotates reliably when the suction tool moves forward, and the shielding plate in front of the suction port is stored via the transmission part, and the suction port The rear shielding plate can protrude and come into contact with the cleaning surface.If the rear wheel is difficult to be pressed against the rear wheel when the suction tool moves backward, the rear wheel does not always rotate reliably. Force The shielding plate in front of the suction port protrudes and comes into contact with the cleaning surface, and the shielding plate behind the suction port is accommodated, and does not require a dedicated external moving force, and moves forward and backward using the moving force of the suction tool. The operation of the shielding plate is reliable over time, and the vacuum cleaner with high dust collection efficiency can be obtained by always collecting dust in front of the traveling direction.
[0008]
【Example】
Example 1
A vacuum cleaner according to a first embodiment of the present invention will be described. The overall configuration of the vacuum cleaner of this embodiment is the same as that of FIG. 4 described in the conventional example. FIG. 1 is a cross-sectional view showing the configuration of the suction tool used in this embodiment. FIG. 1A shows a state in which the suction tool 1 is advanced in the left direction by the user's operation, and FIG. 1B shows a state in which the suction tool 1 is advanced in the right direction by the user's operation. Is shown. In FIG. 1A and FIG. 1B, the connecting pipe 4 shows a missing circular pipe, and the cross section is not particularly shown.
[0009]
The suction tool 1 has a suction port 2 and moving wheels 3a and 3b on the bottom surface. Further, behind the suction tool 1, a connection pipe 4 communicating with the suction port 2 is provided. The wheels 3 a and 3 b are in contact with the cleaning surface 5. Long plate-like shielding plates 6 a and 6 b made of a flexible material such as rubber are provided in front and rear of the suction port 2. In the present embodiment, the shielding plates 6a and 6b are made of silicon rubber having a low frictional resistance. Although the shielding plates 6a and 6b use silicon rubber in this embodiment, there is no problem even if a material having a smooth surface or a material processed so as to have a smooth surface is used. is there. Further, the shielding plates 6a and 6b are fixed to moving means that, when the suction tool 1 is moved to the front and rear portions of the suction port 2, the front side in the traveling direction slides upward, and at the same time, the rear side in the traveling direction slides downward. Yes.
[0010]
In this embodiment, the moving means includes a wheel 3b, a clutch roller 25 that rotates in conjunction with the wheel 3b, a transmission roller 26 that rotates in response to the rotation of the clutch roller 25, and an end face fixed to the transmission roller 26 for transmission. A slide arm 28 that converts the rotational motion of the roller 26 into a linear motion, a transmission roller 27 that contacts the other end of the slide arm 28 and converts the linear motion of the slide arm 28 into a rotational motion, and the transmission roller 27 is rotated. The lever 24 is freely supported, the movable arm 22 a is connected to one end of the lever 24, and the movable arm 22 b is connected to the other end of the lever 24. The slide arm 28 is provided with a sliding surface 28a on which the movable arm 22b comes into contact and slides. In the present embodiment, the sliding surface 28a is formed by coating a fluororesin, but there is no particular problem as long as the sliding of the movable arm 22b can be lightened. The rotation axis of the transmission roller 27 coincides with the central axis 27a around which the lever 24 rotates.
[0011]
The shield plate 6a and the shield plate 6b are connected to the movable arm 22a and the movable arm 22b. Further, a guide plate 21a and a guide plate 21b for guiding the lifting and lowering movement of the shielding plate 6a and the shielding plate 6b are provided around the shielding plate 6a and the shielding plate 6b, respectively. In this embodiment, plastic resin is used as the guide plate 21a and the guide plate 21b, but there is no particular material limitation. In this embodiment, the guide plate 21a and the guide plate 21b are formed by rotating a U-shape by 90 °, and are formed with holes on the top surface where the movable arms 22a and 22b are moved up and down. Further, seal portions 23a and 23b are provided on the top surface to reduce the clearance between the movable arm 22a and the movable arm 22b so that dust does not enter the inside.
[0012]
Hereinafter, the operation of this embodiment will be described. When the user turns on a switch (not shown), an electric blower (not shown) starts to operate, and the pressure of the suction port 2 is reduced to perform suction. When the user advances the suction tool 1, the wheels 3 a and 3 b that are in contact with the cleaning surface 5 rotate in the direction operated by the user. The rotation of the wheel 3 b provided behind the suction port 2 is transmitted to the clutch roller 25. That is, the clutch roller 25 rotates in the operation direction of the user. The rotation of the clutch roller 25 is transmitted to the transmission roller 26 that is in contact with the clutch roller 25. For this reason, the transmission roller 26 rotates in the direction opposite to the rotation direction of the clutch roller 25.
[0013]
That is, as shown in FIG. 1A, when the user advances the suction tool 1 in the left direction, the transmission roller 26 rotates in the right direction. For this reason, the slide arm 28 in contact with the transmission roller 26 moves in the right direction, and the transmission roller 27 rotates the lever 24 in the right direction. For this reason, the lever 24 is raised forward and lowered backward. For this reason, the movable arm 22a that is rotatably connected to both ends of the lever 24 is raised, and the movable arm 22b is lowered. Accordingly, the shielding plate 6 a connected to the movable arm 22 a is raised and accommodated in the suction tool 1. Further, the shielding plate 6b connected to the movable arm 22b descends and comes into contact with the cleaning surface 5 to block the air flow from the rear of the suction port 2. Further, as a result, the shielding plate 6b also functions to block the dust on the cleaning surface 5 from escaping backward. For this reason, the suction force generated by the electric blower acts only on the front side of the suction port 2. In other words, dust in front of the traveling direction is efficiently collected.
[0014]
Moreover, as shown in FIG.1 (b), if a user advances the suction tool 1 to the right direction, the transmission roller 26 will rotate to the left direction. For this reason, the slide arm 28 in contact with the transmission roller 26 moves to the left, and the transmission roller 27 rotates the lever 24 to the left. For this reason, the lever 24 is lowered at the front and raised at the rear. For this reason, the movable arm 22b rises and the shielding plate 6b connected to the movable arm 22b is accommodated in the suction tool 1. Further, the movable arm 22a is lowered, the shielding plate 6a connected to the movable arm 22a is lowered, and comes into contact with the cleaning surface 5 to block the air flow from the rear of the suction port 2. Further, as a result, the shielding plate 6a also functions to block the dust on the cleaning surface 5 from escaping forward. For this reason, the suction force generated by the electric blower acts only on the rear side of the suction port 2. In other words, dust in front of the traveling direction is efficiently collected.
[0015]
As described above, according to the present embodiment, the vacuum cleaner main body containing the electric blower and the suction tool 1 connected to the vacuum cleaner main body are provided, and the suction tool 1 has the suction port 2 on the bottom surface and the suction tool 1. When the suction tool is moved to the front and rear portions of the mouth 2, the front side in the traveling direction slides upward, and at the same time, the shielding plates 6a and 6b that slide downward on the rear side in the traveling direction, and the movement that moves the shielding plates 6a and 6b. Therefore, the vacuum cleaner having high dust collection efficiency can be realized by always collecting the dust in front of the traveling direction.
[0016]
At this time, according to the present embodiment, the suction tool 1 is configured to have the guide plates 21a and 21b along the sliding direction of the shielding plates 6a and 6b. For this reason, the shielding plates 6a and 6b can be smoothly moved up and down without being deformed, and further function as a support material when in contact with the cleaning surface 5. Therefore, the shielding force against the cleaning surface 5 is increased, and a vacuum cleaner having a high dust absorption force can be obtained. It is realized.
[0017]
Further, according to the present embodiment, as the shielding plates 6a and 6b, a material having a smooth surface such as silicon rubber, or a surface of a metal material or a plastic resin material is processed with fluororesin so that the surface becomes smooth. It is what. For this reason, the shielding plates 6a and 6b can easily slide within the guide plate 21a and guide plate 21b, and can reduce the frictional resistance with the cleaning surface even when in contact with the cleaning surface. The vacuum cleaner is easy and has high dust absorption.
[0018]
In this embodiment, the clutch roller 25 and the transmission rollers 26 and 27 are used as moving means for moving the shielding plates 21a and 21b. However, there is no problem even if gears are used instead. Further, there is no problem even if a belt is used instead of the slide arm 28 used as the moving means.
[0019]
Further, in this embodiment, the two shielding plates, ie, the shielding plate 21a or 21b on the front side in the traveling direction and the shielding plate 21b or 21a on the rear side in the traveling direction are connected by the lever 24 that constitutes the connecting portion. For this reason, the front-side shielding plate 21a or 21b in the traveling direction and the rear-side shielding plate 21b or 21a in the traveling direction can be surely interlocked and slidably moved to realize an electric vacuum cleaner that is easy to operate and has high dust absorption. To do.
[0020]
Further, in this embodiment, the moving means rotates the wheel 3b via the wheel 3b provided on the bottom surface of the suction tool 1, the clutch roller 25 that constitutes a clutch unit that suppresses the rotation of the wheel 3b, and the clutch roller 25. Consists of a slide arm 28 that constitutes a transmission portion that transmits to the shielding plates 6a and 6b, and the shielding plate 6a or 6b can be slid using the moving force of the suction tool 1, and a dedicated external moving force is required. Therefore, it is possible to realize a vacuum cleaner that is easy to operate and has high dust absorption.
[0021]
(Example 2)
Next, a second embodiment of the present invention will be described. FIG. 2 is a cross-sectional view showing the configuration of the present embodiment. FIG. 2A shows the case where the user moves the suction tool 1 in the left direction, and FIG. 2B shows the suction tool 1 in the right direction. The case where it is moving is shown. In the present embodiment, a slide bar 31 that moves to the left and right in response to the rotation of the clutch roller 25 is used as the moving means described in the first embodiment. The slide bar 31 is made of a flat metal material, but may be a plastic material as long as the strength can be secured. The foot portion of the slide bar 31 is fixed to the clutch roller 25 by a support member 34. Further, on the side surface of the slide bar 31, a rail groove 32 having a hole in a slanting rearward downward direction is provided. The rail groove 32 is inserted with a rod-like protrusion 33 protruding laterally from the movable arm 22b, and may be a metal material in order to increase the strength. A movable arm 22a and a movable arm 22b are connected to the protrusion 33. The rail groove 32, the rod-shaped protrusion 33, and the movable arm 22a and the movable arm 22b constitute a crank portion that moves up and down the shielding plate 6a provided in the front in the traveling direction and the shielding plate 6b provided in the rear in the traveling direction. is doing.
[0022]
With the above configuration, when the user moves the suction tool 1, the shielding plate 6 a or 6 b moves up and down according to the movement of the suction tool 1. That is, the wheel 3a and the wheel 3b provided in the bottom part of the suction tool 1 are rotated by the user's operation in the user's operation direction. The rotation of the wheel 3b is transmitted to the clutch roller 25. As shown in FIG. 2A, when the user advances the suction tool 1 leftward, the slide bar 31 moves leftward by the rotation of the clutch roller 25. As the slide bar 31 moves, the projection 33 moves down the rail groove 32. For this reason, when connected to the projection 33, the movable arm 22b is lowered, and the shielding plate 6b connected to the movable arm 22b is also lowered, and as described in the first embodiment, it is rearward with respect to the traveling direction. Block the air passage. At the same time, the movement of the movable arm 22 b is transmitted by the lever 24 to the movable arm 22 a connected to the other end of the lever 24. That is, the movable arm 22a rises. Therefore, the shielding plate 6a connected to the movable arm 22a is raised and accommodated in the guide plate 21a. As a result, the rear air passage with respect to the traveling direction of the suction port 2 is shielded by the shielding plate 6b, and the air passage in the traveling direction of the suction port 2 is opened.
[0023]
Therefore, in this state, the dust suction force of the electric blower acts on the front in the traveling direction, and efficient dust collection is possible.
[0024]
As shown in FIG. 2B, when the user advances the suction tool 1 in the right direction, the slide bar 31 moves in the right direction by the rotation of the clutch roller 25. As the slide bar 31 moves, the protrusion 33 moves up the rail groove 32. Therefore, when connected to the protrusion 33, the movable arm 22b rises, and the shielding plate 6b connected to the movable arm 22b also rises and is accommodated in the guide plate 21a. At the same time, the movement of the movable arm 22 a is transmitted by the lever 24 to the movable arm 22 a connected to the other end of the lever 24. That is, the movable arm 22a is lowered. Therefore, the shielding plate 6a connected to the movable arm 22a descends and comes into contact with the cleaning surface 5. As a result, the rear air passage with respect to the traveling direction of the suction port 2 is shielded by the shielding plate 6a, and the air passage in the traveling direction of the suction port 2 is opened.
[0025]
Therefore, in this state, the dust suction force of the electric blower acts on the front in the traveling direction, and efficient dust collection is possible.
[0026]
As described above, according to this embodiment, the moving means has the crank portion that moves up and down the two shielding plates, that is, the shielding plate 6 a provided in front of the suction port 2 and the shielding plate 6 b provided in the rear of the suction port 2. For this reason, the vacuum cleaner which can operate | move interlock | cooperates with the wheel 3b in a small space, and can comprise the suction tool 1 small is implement | achieved.
[0027]
Example 3
Next, a third embodiment of the present invention will be described. FIG. 3 is a cross-sectional view showing the configuration of this embodiment. FIG. 3A shows the case where the user moves the suction tool 1 leftward, and FIG. 3B shows the suction tool 1 rightward. The case where it is moving is shown. In this embodiment, the guide plate is provided with a spring that urges the shielding plate to protrude or be housed inside. That is, a compression coil spring 41 having a low tension is inserted into the guide plate 21a in front of the suction port 2 to urge the shielding plate 6a, and a tension coil spring 42 having a low tension is provided in the guide plate 21b behind the suction port 2. The shielding plate 6b is urged.
[0028]
The operation of this embodiment will be described below. As shown in FIG. 3A, when the user advances the suction tool 1 in the left direction, a load is applied downward and the wheel 3b is reliably rotated. Therefore, the transmission roller 26 is moved by this rotation, the slide arm 28 is moved, the transmission roller 27 is moved by this movement, and the lever 24 lowers the shielding plate 6b and raises the shielding plate 6a. At this time, in this embodiment, a compression coil spring 41 having a low tension is inserted into the guide plate 21a to urge the shielding plate 6a, and a tension coil spring 42 having a low tension is provided to the guide plate 21b behind the suction port 2. Although the shielding plate 6b is urged, a load is applied below the suction tool 1 and the spring tension is weak. Therefore, the shielding plate 6a in front of the inlet 2 is accommodated in the guide plate 21a, The shielding plate 6b behind the mouth 2 protrudes from the guide plate 21b and comes into contact with the cleaning surface 5.
[0029]
Further, as shown in FIG. 3B, when the user advances the suction tool 1 in the right direction, it is difficult to apply a load downward, and the wheel 3b does not always rotate reliably. The transmission roller 26 is moved by this rotation, the slide arm 28 is moved, the movement roller 27 is moved by this movement, and the lever 24 raises the shielding plate 6b and lowers the shielding plate 6a. At this time, in this embodiment, a compression coil spring 41 having a low tension is inserted into the guide plate 21a to urge the shielding plate 6a, and a tension coil spring 42 having a low tension is provided to the guide plate 21b behind the suction port 2. The shielding plate 6b is urged. For this reason, the shielding plate 6a in front of the suction port 2 reliably protrudes from the guide plate 21a and contacts the cleaning surface 5 by the tension of the spring, and the shielding plate 6b in the rear of the suction port 2 is reliably accommodated in the guide plate 21b . It is what is done.
[0030]
Only one of the compression coil spring 41 and the tension coil spring 42 may be used.
[0031]
【The invention's effect】
The invention described in claim 1 includes a cleaner body with an electric blower housed therein, a suction device which have a front wheel and a rear wheel for moving the suction port in the bottom surface is connected to the cleaner body, the front and rear of the suction port A shielding plate that is slidably moved up and down, a guide portion that houses the shielding plate and guides the vertical movement of the shielding plate, a clutch portion that suppresses the rotation of the rear wheel, and the clutch portion A transmission portion that transmits the rotation of the rear wheel to the vertical movement of the shielding plate, and a compression spring that projects and biases the shielding plate into a guide portion in front of the suction port, or a guide portion behind the suction port. By providing at least one of the tension springs that house and urge the shielding plate into the guide portion, when the suction tool moves forward, a load is applied downward, and the rear wheel rotates, via the transmission portion. Shielding in front of the inlet The plate is accommodated, the shielding plate behind the suction port protrudes to contact the cleaning surface, and at the time of reverse movement of the suction tool, at least one of the compression spring or the tension spring is provided in front of the suction port. Since the shielding plate protrudes and contacts the cleaning surface, and the shielding plate behind the suction port is housed, the rear wheel easily receives a load downward when the suction tool advances, and the clutch part and the clutch part are interposed therebetween. A transmission part that transmits the rotation of the rear wheel to the vertical movement of the shielding plate is provided, the rear wheel rotates reliably when the suction tool moves forward, and the shielding plate in front of the suction port is stored via the transmission part, and the suction port The rear shielding plate can protrude and come into contact with the cleaning surface.If the rear wheel is difficult to be pressed against the rear wheel when the suction tool moves backward, the rear wheel does not always rotate reliably. Force The shielding plate in front of the suction port protrudes and comes into contact with the cleaning surface, and the shielding plate behind the suction port is accommodated, and does not require a dedicated external moving force, and moves forward and backward using the moving force of the suction tool. The operation of the shielding plate is reliable over time, and a dust cleaner with high dust collection efficiency is realized by always collecting dust in front of the traveling direction.
[Brief description of the drawings]
FIG. 1 is a side sectional view of a suction tool of a vacuum cleaner according to a first embodiment of the present invention. (A) Side sectional view when the direction of travel of the suction tool is leftward. (B) The direction of travel of the suction tool is rightward. FIG. 2 is a side sectional view of a suction tool of a vacuum cleaner according to a second embodiment of the present invention. (A) Side sectional view when the advancing direction of the suction tool is leftward. FIG. 3 is a side sectional view of the suction tool when the advancing direction is rightward. FIG. 3 is a side sectional view of the suction tool of the vacuum cleaner according to the third embodiment of the present invention. Side cross-sectional view in the case where there is (b) Cross-sectional side view in the case where the advancing direction of the suction tool is rightward [FIG. 4] An explanatory view showing the configuration of a conventional vacuum cleaner [FIG. 5] Suction of the conventional vacuum cleaner Side cross-sectional view of the tool (a) Side cross-sectional view when the direction of travel of the suction tool is to the left (b) Side sectional view of the traveling direction of the sushi is right [Description of symbols]
DESCRIPTION OF SYMBOLS 1 Suction tool 2 Suction port 3a, 3b Wheel 4 Connection pipe 6a, 6b Shielding plate 21a, 21b Guide plate 22a, 22b Movable arm 23a, 23b Sealing part 24 Lever 25 Clutch roller 26, 27 Transmission roller 27a Central shaft 28 Slide arm 28a Sliding surface 31 Slide bar 32 Rail groove 33 Protrusion 34 Support material 41 Compression coil spring 42 Tension coil spring

Claims (1)

A cleaner main body with an electric blower housed therein, a suction device which have a front wheel and a rear wheel for moving the suction port in the bottom surface is connected to the cleaner body, shielding slides up and down is provided on the front and rear portions of the suction port A plate, a guide portion that houses the shielding plate and guides the vertical movement of the shielding plate, a clutch portion that suppresses the rotation of the rear wheel, and the rotation of the rear wheel via the clutch portion. And a transmission part that transmits the vertical movement of the shutter, and the shielding plate is housed in the guide part in a compression spring that projects and biases the shielding plate in the guide part in front of the suction port or in the guide part in the rear of the suction port. By providing at least one of the tension springs to be biased, when the suction tool moves forward, a load is applied downward, the rear wheel rotates, and the shielding plate in front of the suction port is stored via the transmission portion. The inlet The shield plate protrudes into contact with the cleaning surface, and at the time of reverse movement of the suction tool, the shield plate in front of the suction port protrudes to the cleaning surface by the spring force of at least one of the compression spring or the tension spring. A vacuum cleaner configured to be in contact with and store the shielding plate behind the suction port .

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