JP4765864B2 - Vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a mechanism that prompts the discharge of dust when the collected dust is full.

As a conventional vacuum cleaner of this type, as shown in FIG. 4, it has a dust amount detection means 52, and when the amount of dust increases due to a signal from the dust amount detection means 52, the dust bag 53 is replaced. Some have a notification means 54 for notification (see, for example, Patent Document 1).
Japanese Patent Laid-Open No. 04-193246

  However, in the configuration of the conventional vacuum cleaner, it is possible that the user may not notice the notification even if notified by the notification means, and even if the user notices it, it is used as it is and the suction force is weak. As a result, there was a possibility that dust could not be collected sufficiently.

  The present invention solves the above-mentioned conventional problems, and provides a vacuum cleaner that can prompt the user to discharge dust more reliably when the collected dust becomes full. With the goal.

  In order to solve the above-mentioned conventional problems, the vacuum cleaner of the present invention includes a dust collection bag for collecting dust, a dust collection chamber for storing the dust collection bag, and a dust amount collected by the dust collection bag. An air volume detection means for detecting the main body, a main body lid provided in an opening portion above the dust collection chamber, an opening means for opening the main body lid, and provided on the downstream side of the dust collection chamber. When it is determined that the amount of dust in the dust bag is full due to the amount of air detected by the air volume detecting means during operation of the vacuum cleaner, the electric fan room containing the blower is equipped with a control means. The control means drives the opening means to start the operation of opening the main body lid, and stops supplying power to the electric blower.

  As a result, the power supply to the electric blower is stopped as well as the main body lid is opened, so that the user can be more surely urged to discharge the full dust. The suction force can be maintained. In addition, since energization of the electric blower is stopped, safety in discharging dust from the dust collecting chamber can be ensured.

  The electric vacuum cleaner according to the present invention can prompt the user to discharge the filled dust more reliably, and can maintain a stable suction force during use of the vacuum cleaner, and can be energized by the electric blower. The safety at the time of discharging the dust from the dust collecting chamber can be ensured.

  According to a first aspect of the present invention, there is provided a dust collection bag for collecting dust, a dust collection chamber for storing the dust collection bag, an air volume detection means for detecting the amount of dust collected by the dust collection bag, and the collection A main body lid that can be freely opened and closed at an opening above the dust chamber; an opening means that opens the main body lid; an electric blower chamber that is provided downstream of the dust collection chamber and houses the electric blower; and a control means; And the control means drives the opening means to determine that the amount of dust in the dust bag is full due to the air volume detected by the air volume detection means during operation of the vacuum cleaner. While starting the operation | movement which opens a lid | cover, it was set as the vacuum cleaner of the structure which stops supply of the power supply to the said electric blower.

  As a result, it becomes possible to prompt the user to discharge the filled dust more reliably, and while using the vacuum cleaner, a stable suction force can be maintained, and the energization of the electric blower can be stopped, It is also possible to secure safety when discharging dust from the dust collection chamber.

  In the second invention, a damper function is added to the opening means of the first invention, the opening speed of the main body cover is reduced, and the opening amount of the main body cover when the supply of power to the electric blower is stopped is reduced. Thus, the energization to the electric blower can be stopped before the main body lid is opened too much, and the safety is further increased.

  According to a third aspect of the present invention, there is provided a dust collection bag for collecting dust, a dust collection chamber for storing the dust collection bag, an air volume detection means for detecting the amount of dust collected by the dust collection bag, and the collection A main body lid that can be freely opened and closed at an opening above the dust chamber; an opening means that opens the main body lid; an electric blower chamber that is provided downstream of the dust collection chamber and houses the electric blower; and a control means; When it is determined that the amount of dust in the dust bag is full due to the air volume detected by the air volume detection means during operation of a vacuum cleaner, after stopping the supply of power to the electric blower, The vacuum cleaner has a configuration in which the control means starts the operation of driving the opening means to open the main body lid.

  As a result, the main body lid is opened after the supply of power to the electric blower is stopped, so that further safety can be ensured.

  When the fourth invention is provided with a secondary battery in addition to the third invention, and it is determined that the amount of dust in the dust bag is full due to the air volume detected by the air volume detecting means during operation of the vacuum cleaner Then, after the supply of power to the electric blower is stopped, the opening means is driven using the secondary battery to start the operation of opening the main body lid.

  Thereby, the power source for driving the electric blower and the power source (secondary battery) for opening the main body lid can be configured separately, and further safety can be ensured.

  According to a fifth aspect of the present invention, in any one of the first to fourth aspects, the electric blower determines that the amount of dust in the dust bag is full based on the amount of air detected by the air amount detecting means during operation of the vacuum cleaner. After stopping the supply of power to the power supply, it was impossible to supply power to the electric blower until the dust bag was once taken out of the dust collection chamber.

  Thereby, since the electric blower cannot be driven until the dust bag is once taken out from the dust collecting chamber, it is possible to realize that the user is surely executed to discharge the dust.

  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)
A first embodiment of the present invention will be described with reference to FIGS. FIG. 1 is an overall perspective view of the vacuum cleaner according to the present embodiment, FIG. 2 is a plan view of the vacuum cleaner with the upper parts such as a main body cover removed, and FIG. 3 is a partially omitted view of the vacuum cleaner. It is sectional drawing.

  1 to 3, the electric vacuum cleaner main body 1 is provided with an electric blower chamber 3 having a built-in electric blower 2 at the rear, and a dust collection bag 4 that detachably collects and collects dust is housed at the front. A pair of traveling wheels 6 are rotatably mounted on both sides of the rear lower part, and a traveling caster 7 is similarly mounted on the front part of the bottom surface. 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 operation of the electric vacuum cleaner main body 1. Reference numeral 13 denotes an extendable or jointable extension pipe. The downstream end is detachably connected to the tip pipe 12, and the other end is detachably connected to the suction tool 16.

  Reference numeral 17 denotes a main body handle that is used when the electric vacuum cleaner main body 1 is carried. It is installed freely. A main body lid 18 is provided above the dust collection chamber 5 so as to be openable and closable.

  19 is an opening means for opening the main body cover 18 when it is determined by an air volume detection means (dust collection amount detection means) 26 described later that the amount of dust in the dust collection bag 4 is full. It has a push-up pin 14 that moves up and down to push up 18 and has a damper function.

  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. 22 is a partition that partitions the electric blower chamber 3 and the dust collection chamber 5, and is provided with a lattice-shaped partition opening (not shown) that communicates with the suction opening of the electric blower 2. It is covered with a primary filter 23 from the chamber 5 side. A power cord 24 supplies commercial power to the vacuum cleaner body 1.

  A substrate (control means) 25 is provided above the electric blower chamber 3, and has an air volume detection means 26 including an air volume sensor for detecting the air volume sucked from the suction tool 16. Then, a table in which the relationship between the air volume and the dust collection amount is examined in advance, the dust amount in the dust collection bag 4 is estimated from the actual detected air volume from the air volume detection means 26, and the detected air volume Is less than the predetermined air volume, it is determined that the dust bag 4 is filled with dust.

  Next, the actual operation will be described. When the electric blower 2 is driven, suction air is generated and dust-containing air is sucked into the vacuum cleaner body 1 from the suction tool 16 and enters the dust bag 4 set in the dust chamber 5. Then, dust and air are separated in the dust bag 4, the dust remains in the dust bag 4, and the separated air flows into the downstream electric blower 2.

  The dust in the dust bag 4 gradually increases, and when the air volume detected by the air volume detecting means 26 becomes smaller than the predetermined air volume, it is determined that the dust bag 4 is filled with dust, and the damper The opening means 19 having a function is driven, the push-up pin 14 extends upward, and the operation of pushing and opening the main body lid 18 is started, and the power supply to the electric blower 2 is stopped.

  At this time, if the stop of the power supply to the electric blower 2 is delayed, the electric blower is driven in a state where the main body lid 18 is opened, and it becomes a dangerous state, but the opening means 19 has a damper function. Therefore, the movement can be delayed, and when the electric blower 2 stops due to the push-up pin 14 extending gradually upward, the main body lid 18 can be brought into a state where it is not pushed open so much. The danger that a hand touches the rotation part of the air blower 2 can be avoided.

  Then, since the electric blower 2 is stopped and the main body lid 18 is also opened, it is possible to strongly inform the user that the dust bag 4 is filled with dust. It becomes easy to move to the discharge operation of the user, and it is possible to strongly urge the user to discharge the dust.

  In the present embodiment, the opening means 19 is provided with a damper function, but any material such as gas or hydraulic pressure may be used.

  Further, the damper function is not necessarily required, and when it is determined that the air volume detected by the air volume detecting means 26 is smaller than the predetermined air volume and the inside of the dust bag 4 is full of dust, First, after the supply of power to the electric blower 2 is stopped, the opening means 19 is driven and the operation of opening the main body lid 18 is started.

(Embodiment 2)
Next, a second embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.

  2 and 3, reference numeral 27 denotes a secondary battery provided separately from the commercial power source supplied by the power cord 24, and the dust collecting bag is used according to the detected air volume from the air volume detecting means 26 during operation of the vacuum cleaner. 4, when it is determined that the inside of the battery 4 is full of dust, after the supply of power to the electric blower 2 is stopped, the opening means 19 is driven using the secondary battery 27, and the body lid 18 is The opening operation is started.

  As a result, the power source for driving the electric blower 2 and the power source (secondary battery) for opening the main body lid 18 can be configured separately. The fear of driving the electric blower 2 is eliminated, and further safety can be ensured.

(Embodiment 3)
Next, a third embodiment of the present invention will be described with reference to FIGS. The same parts as those in the first and second embodiments are denoted by the same reference numerals, and detailed description thereof is omitted.

  In FIG. 2, reference numeral 28 denotes a limit switch provided in front of the dust collection bag 4 and in contact with the wick 4 a of the dust collection bag 4. And after stopping supply of power to the electric blower 2 when it is determined that the inside of the dust bag 4 is filled with dust by the detected air volume from the air volume detecting means 26 during operation of the vacuum cleaner, Until the dust bag 4 is once taken out of the dust collection chamber 5 and the limit switch 28 is released, power supply to the electric blower 2 cannot be performed.

  Thereby, since the electric blower 2 cannot be driven until the dust bag 4 is once taken out from the dust collecting chamber 5, it can be realized that the user is surely executed to discharge the dust.

  In the first to third embodiments, the configuration in which the dust collection bag 4 is set in the dust collection chamber 5 has been described. However, the present invention is not limited to the dust collection bag, and the dust collection made of resin or the like. Even if a container is used, there is no problem.

  In the first to third embodiments, the method of detecting that the dust in the dust bag is full has been described using the air volume detection means, but is not limited thereto. There is no problem even in a method of detecting the fullness of dust in the dust bag using an optical sensor such as a coupler.

  As described above, the electric vacuum cleaner according to the present invention can prompt the user to discharge the dust more reliably when the dust is full, and can always ensure a stable state of suction force. It is easy to use and can be widely applied to household and commercial vacuum cleaners.

Whole perspective view of the electric vacuum cleaner in Embodiment 1 of this invention The top view of the state where the upper parts such as the body cover of the vacuum cleaner are removed Partially omitted sectional view of the vacuum cleaner Circuit block diagram of a conventional vacuum cleaner

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Electric vacuum cleaner body 2 Electric blower 4 Dust collection bag 5 Dust collection chamber 18 Main body cover 19 Opening means 25 Substrate (control means)
26 Air volume detection means 27 Secondary battery 28 Limit switch

Claims (5)

A dust collection bag for collecting dust, a dust collection chamber for storing the dust collection bag, an air volume detection means for detecting the amount of dust collected by the dust collection bag, and an opening above the dust collection chamber A main body cover that can be freely opened and closed, an opening means that opens the main body cover, an electric blower chamber that is provided on the downstream side of the dust collection chamber and houses the electric blower, and a control means. When it is determined that the amount of dust in the dust bag is full due to the air volume detected by the air volume detecting means during operation, the control means starts the operation to drive the opening means and open the main body lid And a vacuum cleaner configured to stop the supply of power to the electric blower. The electric vacuum cleaner according to claim 1, wherein a damper function is added to the opening means, the opening speed of the main body lid is reduced, and the opening amount of the main body lid at the time when the supply of power to the electric blower is stopped is reduced. A dust collection bag for collecting dust, a dust collection chamber for storing the dust collection bag, an air volume detection means for detecting the amount of dust collected by the dust collection bag, and an opening above the dust collection chamber A main body cover that can be freely opened and closed, an opening means that opens the main body cover, an electric blower chamber that is provided on the downstream side of the dust collection chamber and houses the electric blower, and a control means. When it is determined that the amount of dust in the dust bag is full due to the air volume detected by the air volume detecting means during operation, the control means opens the opening after power supply to the electric blower is stopped. A vacuum cleaner configured to start the operation of opening the body lid by driving the means. When it is judged that the amount of dust in the dust bag is full due to the air volume detected by the air volume detection means during operation of the vacuum cleaner, after stopping the power supply to the electric blower, 4. The electric vacuum cleaner according to claim 3, wherein the opening means is driven using the secondary battery to start the operation of opening the main body lid. After determining that the amount of dust in the dust bag is full due to the air volume detected by the air volume detection means during operation of the vacuum cleaner and stopping the power supply to the electric blower, collect the dust bag once. The vacuum cleaner according to any one of claims 1 to 4, wherein power supply to the electric blower cannot be performed until the electric blower is taken out from the dust chamber.

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