JP2008079765A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner with high usability, capable of stably removing dust. <P>SOLUTION: The vacuum cleaner comprises: a motor-driven blower 2; a filter 49 for catching dust; a dust collecting container 4 with the filter 49; a dust removal means 101 for removing the dust from the filter 49; a dust collecting container housing part 5 communicated with the motor-driven blower 2, to which the dust collecting container 4 is freely detachably mounted; and a control means 103 for controlling the dust removal means 101 and the motor-driven blower 2. Before removing the dust from the filter 49 in the dust removal means 101, the entrance of the dust collecting container 4 is closed by a closing means. Thus, there is no influence of suction air generated by the inertia rotation of the motor-driven blower 2 even after energizing to the motor-driven blower 2 is stopped, and the vacuum cleaner with excellent usability, capable of stably removing the dust stuck to the filter 49 inside the dust collecting container 4 is provided. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a mechanism for removing collected dust from a dust collection container or a dust collection bag.

  As a conventional vacuum cleaner of this type, the dust collector attached so that the dust collected in the filter of the dust collecting container is located at the rear when stored in the main body and can be reciprocated every time the power cord is pulled out. In addition, there is a configuration in which the user manually removes dust from the filter while vibrating the back surface of the filter (see, for example, Patent Document 1).

Furthermore, in recent years, there has been proposed and proposed to perform dust removal before automatically starting cleaning (see, for example, Patent Document 2).
Japanese Patent Publication No. 64-4776 JP 2006-175270 A

  However, in the structure of the conventional vacuum cleaner, the burden on the user is very heavy manually, and dust cannot be removed unless the dust collecting container is removed from the main body. Also, when linked with the power cord or when dust is automatically removed at the start of cleaning, if the time from the previous cleaning to the current cleaning is long, depending on changes in temperature and humidity, etc. There was a problem that it was difficult to fall easily with a simple vibration entering the filter's eyes. In addition, when the operation stops, suction air remains due to the rotation of the electric blower. In order to obtain the dust removal effect, an appropriate time may be required until the suction air disappears. Sometimes made it worse.

  An object of the present invention is to solve the conventional problems described above, and to provide a vacuum cleaner that can always perform stable dust removal performance and is excellent in usability.

  In order to solve the conventional problems, an electric vacuum cleaner of the present invention includes an electric blower, a filter for collecting dust, a dust collecting container having the filter, dust removing means for removing dust from the filter, A dust collection container storage unit that communicates with the electric blower and in which the dust collection container is detachably mounted; and a dust removal means and a control means for controlling the electric blower, and before the dust removal means removes the filter. The entrance of the dust collecting container is closed with a closing means, and is not affected by the suction air generated by the inertial rotation of the electric blower even after the energization to the electric blower is stopped. The dust attached to the filter in the container can be efficiently removed, and a vacuum cleaner excellent in usability can be provided.

  The vacuum cleaner of the present invention can always exhibit a stable dust removal performance and is easy to use.

  The first invention is an electric blower, a filter for collecting dust, a dust collecting container having the filter, a dust removing means for removing dust from the filter, and being connected to the electric blower and the dust collecting container being attached and detached. A dust collection container storage section that is freely mounted, a control means for controlling the dust removal means and the electric blower, and before removing the filter by the dust removal means, closes the entrance of the dust collection container with a closing means. This is an electric vacuum cleaner with excellent usability that can eliminate dust and reliably remove dust even after the electric blower has been de-energized. Can be provided.

  According to a second aspect of the present invention, there is provided an electric blower, a filter for collecting dust, a dust collecting container having the filter, a dust removing means for removing dust from the filter, communicated with the electric blower, and the dust collecting container is attached and detached. A dust collection container storage unit that is freely mounted, and a control means for controlling the dust removal means and the electric blower, and before the dust removal means removes the filter, the electric blower and the dust collection container communicate with each other. By closing the position of the closing means of the first invention close to the electric blower, the suction air can be more effectively restrained and reliably removed by dust. An excellent vacuum cleaner can be provided.

  According to a third aspect of the invention, there is provided an electric blower, a dust collecting means for collecting dust, a dust removing means for removing the dust collecting means, a dust collecting means that is connected to the electric blower and in which the dust collecting means is detachably mounted. A dust means storage section, and a control means for controlling the dust removing means and the electric blower, and before removing the dust collecting means by the dust removing means, or at the entrance of the dust collecting means or the dust collecting means and the electric blower. Dust can be reliably removed regardless of the dust collection method by closing the communicating area with the closing means.

  According to a fourth aspect of the present invention, the time from when the operation stop signal of the electric blower is transmitted by the control means according to any one of the first to third aspects until the closing means starts operating is the stop of the operation of the electric blower. By setting the time shorter than the time from when the signal is transmitted until the inertial rotation of the electric blower stops, dust can be reliably removed by the closing means without being influenced by the inertial suction wind of the electric blower.

  In the fifth aspect of the invention, after the dust removal by the dust removal means of any one of the first to fourth inventions, the dust is once removed by closing the closing means until the electric blower starts operation. It prevents dust from being released to the outside due to movement of the main body, etc., enabling reliable dust collection.

  Hereinafter, embodiments of the present invention will be described with reference to the drawings. Note that the present invention is not limited to the embodiments.

(Embodiment 1)
The vacuum cleaner in the 1st Embodiment of this invention is demonstrated using FIGS. 1-2. FIG. 1 is an overall perspective view of the vacuum cleaner according to the present embodiment, and FIG. 2 is a side sectional view of the vacuum cleaner.

  1 and 2, the vacuum cleaner main body 1 is provided with an electric blower chamber 3 having an electric blower 2 built in at the rear, and a dust collecting container for storing a dust collecting container 4 that is detachable and separates and collects dust at the front. A container storage portion 5 is arranged, a pair of traveling wheels 6 are rotatably attached to both sides of the lower rear portion, and a traveling caster 7 is similarly attached to the bottom front portion. At the front of the vacuum cleaner main body 1, there is provided an air inlet 10 to which a connection pipe 9 provided at one end of the hose 8 is detachably connected.

  The other end of the hose 8 is provided with a tip pipe 12 provided with a handle 11 having an operation part 11a for gripping during cleaning and operating the cleaner body 1. Reference numeral 13 denotes a telescopic or jointable extension pipe, the downstream end of which is detachably connected to the tip pipe 12, and the other end is a rotary brush 14 for dusting up and a motor for driving the rotary brush 14 to rotate. 15 is detachably connected to a suction tool 16 having a built-in 15.

  Reference numeral 17 denotes a bumper molded from an elastic material and extending from the front part to both sides of the cleaner body 1. When the cleaner body 1 travels, even if the cleaner body 1 collides with furniture, pillars, etc., it is damaged. It is a thing to avoid attaching.

  Reference numeral 18 denotes a main body handle that is used when the cleaner body 1 is carried, and is rotatably attached to the upper portion of the cleaner body 1 so that the center of rotation is located on a vertical line passing through the center of gravity of the cleaner body 1. It has been.

  Reference numeral 19 denotes a container handle for carrying the dust collection container 4, which is gripped when the dust collection container 4 is carried or removed from the dust collection container storage portion 5 of the cleaner body 1.

  The front part of the electric blower 2 is supported in the electric blower chamber 3 by a support front 20 made of an elastic body, and the rear part is a support spring 21 made of an elastic material. Reference numeral 22 denotes a partition wall that partitions the electric blower chamber 3 and the dust container storage unit 5, and a lattice-like partition opening 23 that communicates with the suction opening 2 a of the electric blower 2 is provided in the approximate center. The third filter 24 covers the dust collection container storage unit 5 from the side. A power cord 25 supplies power to the cleaner body 1.

  A packing 29 is provided behind the suction port 10 of the vacuum cleaner main body 1 so as to be in close contact with the front portion of the dust collecting container 4 when the dust collecting container 4 is attached to the dust collecting container housing 5. As shown in FIG. 8, a shutter (closing means) 100 for stopping the suction air from the electric blower 2 is disposed in front of the packing 29.

  The shutter 100 is configured to be pushed downward by the drive motor 62 before the filter unit 28 is removed by the dust removing means 101, which will be described later, so that the front of the opening of the packing 29 is closed. By closing, the suction air of the electric blower 2 is stopped. For example, when starting the next cleaning, when the electric blower 2 starts operation, the shutter 100 is lifted upward by the motor 62 to open the front of the opening of the packing 29.

  Next, the configuration of the dust collecting container 4 will be described with reference to FIG. FIG. 3 is a perspective view of the dust collecting container and the dust collecting container storage unit.

  In FIG. 3, the dust collecting container 4 includes a dust collecting container main body 27 and a filter unit 28 that is detachably attached to the rear opening of the dust collecting container main body 27.

  At the front of the dust container main body 27, when the dust container 4 is attached to the dust container housing 5 of the cleaner body 1, the packing 29 provided behind the suction port 10 of the cleaner body 1 is airtight. A suction port A30 that is in pressure contact and communication is provided (not shown).

  Next, the circuit configuration of the electric vacuum cleaner according to the present embodiment will be described with reference to FIG.

  In FIG. 4, 2 is an electric blower for generating suction air, 101 is a dust removing means for removing the filter unit 28 for collecting dust, 103 is a control means for controlling the dust removing means 101, the electric blower 2 and the filter unit 28. is there.

  Further, the operation unit 11a has switches for setting, for example, “strong”, “standard”, “weak”, and “off” operation modes, and the control means 103 determines the switch pressed by the user (see FIG. 5).

  Next, the operation of this circuit will be described.

  The vacuum cleaner is operated by the user. A desired switch in the operation unit 11a is pressed. For this operation, the control means 103 detects which switch is pressed. For example, if “strong” is pressed, the control means 103 receives the signal from the operation unit 11a and is now pressed. The switch is determined to be “strong”. After determining the switch, a signal for driving the electric blower 2 is output.

  The electric blower 2 operates according to the output signal. By this operation, suction air is generated, and suction is performed via the rotating brush 14, the hose 8, and the dust container storage unit 5.

  Dust is caught by the dust collection container 4 in the dust collection container storage part located in the passage. By performing this operation, cleaning can be performed.

  Here, a case where this operation is continuously performed will be described (see FIG. 7).

  Dust collected on the filter unit 28 of the dust collecting container 4 located in front of the electric blower 2 is accumulated, but the dust accumulated on the filter unit 28 passes through the filter unit 28. The sucking air to be tried will decrease. This is because the passage through which the suction air can pass becomes narrow due to the accumulation of dust that cannot pass through the filter of the filter unit 28 on the filter surface. This state is a state in which dust is increased and dust is filled (the eyes are clogged).

  Now, when the cleaning is finished, if “OFF” is pressed, the current shutter operation and dust removal of the filter 49 are performed.

  As indicated above, the control means 103 determines that the user has finished cleaning by pressing “OFF” on the operation unit 11a. The control means 103 stops the electric blower 2 and operates the shutter 100 to stop the suction air. Thereby, there is no flow of air in the dust collecting container storage part 5, and no intake air flows through the filter unit 28. When this state is reached, the dust removing means 101 is operated to remove dust on the filter surface of the filter unit 28 and to secure the intake path so that the suction force of the vacuum cleaner can be regenerated. Become.

  Here, an example of the dust removing means 101 will be briefly described.

  As shown in FIGS. 3 and 6, when the dust removal operation is performed, the operation is transmitted to the dust collection container 4 side by the connecting part 56 in the dust collection container storage unit 5 of the main body. When the dust removing means 101 is driven by the control means 103, the connecting portion 56 starts to rotate, the operation is connected to 54a to 54c in the dust container 4, and the dust removing unit 28a of the filter unit 28 is moved left and right by the dust removing belt 28c. It will be. During this operation, vibration is generated when the dust removing unit hits the filter, and dust on the filter surface falls from the filter due to the vibration. At this time, if suction by inertial rotation at the time when the electric blower 2 is stopped is continued, suction air flows into the dust removal unit 28a from the inlet 10 side to the electric blower 2. Therefore, even when the dust removing means 102 is driven, the amount of dust falling from the filter surface is reduced. Accordingly, since the effect of dust removal is reduced, it is important to operate the shutter 100 to eliminate the suction air.

  Moreover, although it is the position of the shutter 100, it can be arranged in the vicinity of the air inlet 10 most easily in terms of space and configuration, but ideally it is just before the electric blower 2. Although this is illustrated in FIG. 7, the electric blower 2 is stopped by operating the “off” switch of the operation unit 11a.

  Here, the electric blower 2 performs a slight rotation due to the inertia of the rotation so far. At this time, even if the shutter 100 is provided in front of the dust collecting container 4, the suction air can be reduced to some extent, and thus there is an effect. However, when the shutter closer to the electric blower 2 is closed, it is difficult for suction air to be generated and the inside of the dust collecting container 4 is unlikely to be in a negative pressure state. When the inside of the dust collecting container 4 is less likely to be in a negative pressure state, dust on the filter surface of the filter unit 28 is more likely to fall.

  From the above, the time until the operation of the shutter 100 after the operation stop signal of the electric blower is issued by the control means 103 is a state in which the dust removal means 101 is hardly affected by the negative pressure due to inertial rotation of the electric blower 2. By setting a shorter time, dust can be removed more quickly.

  On the suction port 10 side, a shutter 100 for stopping the suction air of the electric blower 2 is disposed on the suction port side of the packing 29.

  The overall cleaning operation and the state of each part will be described. When starting to use the vacuum cleaner, the user pulls out the power cord 25 from the cleaner body 1 and plugs the power plug 25a into an outlet provided on the wall of the room. If it inserts, the connection part 56 which received the signal will be rotationally driven. As the connecting portion 56 rotates, the rotational power is transmitted to the gear A 28b and the rack gear 46a via the gear C 54b attached to the drive shaft 54 and the gear D 54c, and the flip body 28a reciprocates left and right. Then, the operation of flipping the mountain folds 49a of the secondary filter 49 to screen off fine dust adhering to the back surface of the secondary filter 49 is performed within a preset time.

  And when the operation part 11a is operated and the operation of the vacuum cleaner is started, the suction force by the electric blower 2 reaches the suction tool 16 through the tertiary filter 24, the secondary filter 49, the hose 8, and the extension pipe 13. Then, the air containing the dust sucked from the suction tool 16 passes straight through the suction port 10 of the cleaner body 1 and enters the suction port A30 of the dust container main body 27, where the dust is collected and accumulated. To go. Captured by the secondary filter 49.

  In the present embodiment, when the operation of the vacuum cleaner is further stopped by operating the operation unit 11a provided on the handle 11, the same operation as the fine dust sieving operation by the flip body 28a of the secondary filter 49 is performed in advance. It is done within the set time or number of times.

  As described above, according to the present embodiment, since the flip body 28a for removing dust from the secondary filter 49 is provided, the filtration performance of the secondary filter 49 can be restored as appropriate.

  Further, by closing the shutter 100 when cleaning is completed, the dust collected inside does not come out even when the main body is moved, and the hygiene and usability are improved.

  If the flip body 28a can be driven manually, when the dust in the dust collecting container 4 is discarded, when the dust is not sufficiently compressed and difficult to fall, or the secondary filter 49 is used. When fine dust adhering to the surface is insufficiently removed, it can be driven manually to reliably dispose of dust.

  Further, if the flip body 28a can be selectively driven by driving means and manual driving, a more convenient vacuum cleaner can be provided.

  In the present embodiment, the shutter is used as the closing means 100. However, the present invention is not limited to this, and there is no problem other than the shutter as long as the suction air can be stopped.

  As described above, the vacuum cleaner according to the present invention can always perform dust removal in a state of a stable suction air, is easy to use, and can be used in various vacuum cleaners for home use, business use, and store use. Applicable.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention Cross section of the vacuum cleaner The exploded perspective view around the dust collection container and the collection container storage part of the vacuum cleaner The circuit block diagram of the vacuum cleaner Same as above, front view of operation part of vacuum cleaner Same perspective view of vacuum cleaner dust collection container (A) Image diagram of dust accumulated on the secondary filter in a state where suction air is generated (b) Image diagram of dust accumulated on the secondary filter in a state where there is no suction air The principal part perspective view around the shutter of the vacuum cleaner in Embodiment 1 of this invention

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Electric blower 4 Dust collection container 5 Dust collection container storage part 27 Dust collection container main body 28a Play body (dust removal means)
49 Secondary filter (filter)
100 Shutter (closing means)

Claims (5)

An electric blower, a filter for collecting dust, a dust collecting container having the filter, a dust removing means for removing dust from the filter, and a dust collector that is in communication with the electric blower and is detachably mounted. An electric vacuum cleaner comprising a dust container storage section, the dust removing means, and a control means for controlling the electric blower, and closing the entrance of the dust collecting container with a closing means before removing the filter by the dust removing means. An electric blower, a filter for collecting dust, a dust collecting container having the filter, a dust removing means for removing dust from the filter, and a dust collector that is in communication with the electric blower and is detachably mounted. A dust container storage section, a control means for controlling the dust removal means and the electric blower, and before removing the filter by the dust removal means, a closing means is provided between the electric blower and the dust collection container. Vacuum cleaner to close. An electric blower, a dust collecting means for collecting dust, a dust removing means for removing the dust collecting means, a dust collecting means storage unit that communicates with the electric blower and is detachably attached to the dust collecting means, The dust removing means and a control means for controlling the electric blower, and before removing the dust collecting means by the dust removing means, the inlet of the dust collecting means or the dust collecting means and the electric blower communicate with each other. A vacuum cleaner that closes the space with a closing means. The time from when the operation stop signal of the electric blower is transmitted by the control means until the closing means starts operating is from the time from when the operation stop signal of the electric blower is transmitted until the inertia rotation of the electric blower stops The electric vacuum cleaner according to any one of claims 1 to 3, wherein the time is short. The vacuum cleaner according to any one of claims 1 to 4, wherein the closing means is closed until the electric blower starts operating after the dust removal by the dust removing means is completed.

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