JPH0386124A - Central cleaner - Google Patents

Abstract

PURPOSE:To stop the rotation of a motor after a prescribed time elapses after turning off a power source switch and refuse, etc., are collected completely by providing a delaying circuit on an ON/OFF circuit of a dust collecting motor of the body. CONSTITUTION:A floor brush 55 is attached to the tip of an extension pipe 54 to which a tube is assembled, and by opening a cover 41 of a connecting port 4 of a room to which cleaning is started, a cleaning hose 5 is inserted. When a handy switch 53 is turned on, and a fan 76 is rotated, the inside of the body 7 becomes negative pressure, refuse, etc., on the floor 2 and 3 are sucked from the floor brush 55 and brought to dust collection into a dust collecting case 71 through a piping 6. When cleaning of the room is ended and the handy switch 53 is turned off, a delaying circuit 9 is operated and a motor 75 continues its rotation as it is. Subsequently, after a delay time corresponding to a CR value of the delaying circuit 9 elapses, the rotation of the fan 76 by the motor 75 stops. In this case, refuse, etc., sucked from the floor brush 55 immediately before turning off the handy switch 53 are collected into the dust collecting case 71 by utilizing the delay time and it does not occur that they are left on the way of the piping 6.

Description

[Detailed description of the invention] [Industrial application field] The present invention relates to a central cleaner.

[Conventional technology] A central cleaner uses the main body of a stationary electric vacuum cleaner to collect dust centrally through connection ports installed at multiple locations in each room of a building, through pipes under walls and floors. It is configured. The length of dust collection piping depends on the size of the building, but even in an ordinary house, the length of the piping ranges from several liters of meters to even longer. On the other hand, the flow of air that passes through the pipes due to the suction force of the main body of the electric vacuum cleaner is significantly slower than the rotation and stopping operations of the electric motor, which is controlled by electric current. On the other hand, in conventional devices of this type, the fact is that the above-mentioned delay in airflow is not taken into account at all.

[Problems to be Solved by the Invention] As described above, in the conventional central cleaner, no consideration was given to the delay in airflow flowing through the piping. For this reason, the rotation of the electric motor of the main body of the electric vacuum cleaner may stop while the dust sucked from the hose is passing through the pipe. If debris gets stuck in the middle of the pipe, it can cause a clog. In particular, if moisture-containing dust or adhesive tape is stopped midway through, it will not only stick to the pipe walls and reduce the dust collection ability, but also sometimes block the pipes, requiring removal of walls and floorboards to replace the pipes. There were problems such as having to do so.

The present invention has been made in view of the current situation, and uses a delay circuit provided in the on/off circuit of the electric motor, and utilizes this circuit to stop the dust from being removed after a certain period of time has elapsed after the power switch is turned off. This is a central cleaner that stops the rotation of the electric motor only after the dust has been completely collected.

[Means for Solving the Problems] The present invention comprises a central cleaner in which a delay circuit is provided in the on/off circuit of the dust collecting motor of the main body.

[Operation] When you connect the cleaning hose to the connection port and turn on the switch, the dust collection electric motor in the main unit rotates and dirt on the floor is sucked into the hose. The dust that is sucked in is sent to the suction port of the main unit through piping and collected in the dust collection case. Even after cleaning is finished and the switch is turned off, the delay circuit works and the dust collection motor continues to rotate for a while.

The delay time of the delay circuit is set corresponding to the length of the piping. After a certain period of time has elapsed and all the dust sucked in from the hose has been collected into the dust collection case, the dust collection motor stops rotating.

[Embodiment of the Invention] Fig. 1 is an explanatory diagram of the configuration of an embodiment of the invention, Fig. 2 is an explanatory perspective view of a cleaning hose, and Fig. 3 is an explanatory diagram of the main body of an electric vacuum cleaner.

In Figures 1 to 3, (1) is a two-story house,
(2) and (3) are the floors of the first and second floors. (4>) is a plurality of connection ports installed on the floors (2) and (3) of each floor.When the connection port (4) is not in use, it is connected to the floor (2>).

It is on the same surface as (3), but when using it, the lid (4)
1) can be opened. The state of use of the connection port (4) is shown in FIG. (5) in Figure 2 is a cleaning hose, (
51) is the flexible tube, (52) is the dogleg-shaped grip, (53) is the hand switch provided on the grip (53), (54) is the extension pipe, (55)
is a floor brush. Cleaning hose (5) as shown
When the cleaning hose (5) is inserted into the connection port (4), the cleaning hose (5) is pneumatically and electrically connected to the main body of the electric vacuum cleaner, which will be described next. (6) is a dust collection pipe installed under the floor or on the wall, (7)
> is the main body of an electric vacuum cleaner installed outside the house (1). Piping (6) connects each connection port (4) to the main body (7).

(71) in Figure 3 is the dust collection case of the main body (7), (72)
is a suction port, (73) is a double filter, and (74) is an exhaust port. Further, (75) is an electric motor, (76) is a fan rotated by the electric motor (75), (77) is a power plug,
(78) is a remote control code, and (79) is a latch.

If you remove the latch (79), the top of the main body (7) will be opened,
The accumulated garbage in the dust collection case (71) can be disposed of. In addition, (8) in Fig. 4 is a rectifier circuit,
(9) is a delay circuit. The rectifier circuit (8) is composed of a diode and a capacitor, and converts alternating current induced in the secondary winding of the transformer (IO) into direct current. Further, the delay circuit (9) is composed of, for example, a CR circuit consisting of a resistor and a capacitor, and the capacitance of the capacitor at each connection port (4) is selected to correspond to the length of the pipe (6). . (11
) is the relay (12) is the contact of the relay (11), (13
) is a coil. The contact (12) is turned on when the coil (13) is excited. The circuit configuration is such that the delay circuit (9) does not operate when the hand switch (53) is turned on by using a bypass circuit or the like.

The operation of the central cleaner of the present invention configured as described above will be explained next.

Attach the floor brush (55) to the end of the extension pipe (54) with the tube (5t) attached, open the M (41) of the connection port (4) in the room you are going to start cleaning, and run the cleaning hose (5). ). With this insertion operation, the cleaning hose (5) is electrically and pneumatically connected to the main body (7) of the electric vacuum cleaner.Here, when the hand switch (53) is turned on, the main body (7) ) The electric motor (75) inside the fan (78
). When the fan (76) rotates, the main body (7
) becomes negative pressure, and the dust on the floors (2) and (3) is sucked in from the floor brush <55> and collected into the dust collection case (71) via the pipe (6). .

When you finish cleaning the room and turn off the hand switch (53),
The delay circuit (9>) operates and the electric motor (T5) continues to rotate.Then, after the delay time corresponding to the CR value of the delay circuit (9) has passed, the electric motor (75> starts operating the fan (7B)). The rotation stops. In this case, the dust sucked in from the floor brush (55) just before the hand switch (53) is turned off is collected in the dust collection case (71) using the delay time and is sent to the pipe (8). ) will not be left in the middle of the cleaning hose (
5> can be pulled out from the connection port (4), inserted into the connection port (4) in the next room, and cleaned in the same manner.

In addition, although the above-mentioned Example illustrated and explained the case of the case of a two-story general house, buildings, such as a reinforcement building or an office, may be used. Further, although the explanation has been given with respect to the case where the electric vacuum cleaner is installed outside a building, it goes without saying that the present invention can also be applied when the electric vacuum cleaner is installed inside a building.

[Effects of the Invention] As described above, the present invention constitutes a central cleaner in which a delay means is provided in the on/off circuit of the dust collecting motor. As a result, when the on-off circuit of the electric motor is turned off by operating the hand switch, the rotation of the electric motor is stopped after a predetermined period of time has elapsed due to the delay means. The delay time of each connection port in this case corresponds to the length of the piping.

Therefore, all the dirt sucked in by the floor brush or nozzle at the end of the cleaning hose is collected in the dust collection case, and no dirt gets stuck in the middle of the pipe.

Therefore, according to the present invention, a central cleaner with various features such as being able to prevent the occurrence of dirt clogging in the pipes with a simple configuration, being trouble-free, and eliminating the need for installation or replacement work is realized. can do.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram of the configuration of the embodiment of the present invention, Fig. 2 is a perspective explanatory diagram of a cleaning hose, Fig. 3 is an explanatory diagram of the main body of the electric vacuum cleaner, and Fig. 4 is an illustration of the electrical configuration of the embodiment of the invention. It is a connection diagram. In the figure, (1) is the house (building), (2> and (3) are the floors, (4) is the connection port, (5) is the cleaning hose, (6) is the piping, (7) is the main body, ( 8> is a rectifier circuit, (9) is a delay circuit, ((0> is a transformer, (11) is a relay (12)
) is the contact, (13) is the coil, (41) is the connection port cover,
(51> is the tube, (52> is the grip part, (53) is the hand switch, (54) is the extension vibrator, (55) is the floor brush, (71) is the dust collection case, (72> is the suction port, ( 73
> is the filter, (74) is the exhaust port, (75) is the electric motor,
(76) is a fan, (77> is a power plug, (78) is a remote control cord, and (79) is a latch. Note that the same reference numerals in the figures indicate the same or corresponding parts.

Claims (1)

[Scope of Claims] A main body of a stationary electric vacuum cleaner that rotates a fan using an electric motor to collect dust, a plurality of connection ports provided for each floor or partitioned space in a building, and a plurality of connection ports connected to the connection ports and In a central cleaner equipped with a switch for opening and closing an on/off circuit of an electric motor, a cleaning hose to which a dust collection brush, etc. is attached, and piping for electrically and pneumatically connecting the main body and a connection port. , a delay means is provided in the on/off circuit of the motor, and the rotation of the motor is stopped after a predetermined period of time has elapsed after the switch is operated by the delay means and the on/off circuit of the motor is turned off. A central cleaner that is characterized by: