JPS61280821A - Central cleaner - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (a) Industrial Application The present invention relates to a central cleaner having a plurality of hose outlets, each of which is connected to a vacuum cleaner body via piping.

Conventional technology In conventional central cleaners, when a hose is connected to each hose outlet, the length of piping from the vacuum cleaner body to the hose outlet is generally different; There was a difference in suction force. For this reason, Jiko Sho 5
As disclosed in Publication No. 4-28861, a resistor is installed at each hose outlet to be connected to the input control circuit of the blower when the hose is inserted, and by adjusting this resistance value at each outlet, the difference between each hose can be adjusted. The suction force at the inlet was kept approximately constant.

In addition, the one disclosed in Japanese Patent Application Laid-open No. 59-149116 has semiconductor pressure sensors installed at the hose insertion port and the main body suction port,
The blower input is controlled by utilizing the fact that the difference increases with the distance between the main body and the hose outlet, and the suction force at each hose outlet is kept approximately constant.

However, for devices with a power control function that manually controls the blower input, it is difficult to apply the above method and the power cannot be used normally, except in cases where it is better to lower the power, such as when cleaning curtains, etc. It is more effective to maximize the suction power of the blower when cleaning floors (zip, tatami, etc.).

C) Problems to be solved by the invention The present invention has been made to solve the above-mentioned drawbacks.
To perform effective cleaning by keeping the blower input at the maximum level in a central cleaner, and by keeping the suction force of each hose insertion port substantially constant when the blower input is lowered.

2) Means for Solving the Problems The central cleaner of the present invention is equipped with pre-calibrated pressure sensors installed at each hose outlet so that the same output can be obtained under certain conditions, and the central cleaner is actually installed. At that point, insert the hose into one of each hose outlet, store the output signal of the pressure sensor at that time in the memory device, and do this for all hose outlets and multiple blower inputs. This is what I did.

E> Function Therefore, it is possible to calculate the suction force at each hose outlet under the same blower input, and it is also possible to calculate the blower input to make the suction force at each hose outlet the same, thereby reducing the blower input. By making the suction force at each hose insertion port the same when the hose is connected, it is possible to eliminate a feeling of discomfort in practical use between the hose insertion ports, and improve usability.

f) Example The present invention will be described below with reference to embodiments shown in the drawings.

In FIG. 1, (1) is a structure, such as a house, in which the central cleaner according to the present invention is installed, and the vacuum cleaner body (2) installed at the bottom of the floor of the house is equipped with a dust filter, a blower, etc., and has piping ( 3> is connected to multiple hose outlets (4) (4)... provided in the room. (5) (5
)... is a circuit section provided near each of the hose outlets (4) (4)..., and a pressure detection section of the hose outlet (4);
Signal detection part and LED of hose hand switch part (6)
The central processing unit (9) is connected to the central processing unit (9) via the input/output port unit (8) by the signal line (7). is connected to enable data input and output. The input/output port section (8) includes a pressure detection section (11) before and after the dust collection filter of the vacuum cleaner body (2) and a blower control circuit (12).
is connected, and the vacuum cleaner blower is controlled by the output signal of the central processing unit (9).

The structure of the hose insertion port (4) is shown in FIG. 2, in which a front panel (14) having a hose holding part (13) connected to the pipe (3) is attached to the floor or wall (15). Secure with screws, etc. The piping of the hose holding part <13) (
3) Attach the rubber gasket (16) to the side with the metal fitting (17)
and press fit into the piping 3). The circuit section (5) is attached to a board (18), and this board is fixed to the back side of the front panel (14) with screws or the like via mounting fittings (19), and is also mounted on the board (18). The pressure sensor (20) is connected to a pressure transmitting vibrator (21) that passes through a hole made in the rubber gasket (16) and the metal fitting (17).
) to detect the pressure inside the pipe near the hose insertion port (4).

(22) is a hose insertion part, which is used by manually opening the opening/closing lid (23) of the hose insertion port (4) and inserting it into the hose holding part <13). At this time, the variable resistor built into the hand switch section (6) of the flexible hose (24) and connected to the two steel wires of the flexible hose (24) is also connected to the flexible hose (24).
A pair of terminal pins (25) (25) connected to the two steel wires of 4) and located in the hose insertion part (13), and a pair of terminal pins (26) (25) located in the hose insertion part (13). 26>, and a value corresponding to the resistance value of the variable resistor is read into the central processing unit (9>) through lines 48 (27) and (7). Also, the flexible hose (24) is inserted into the hose. When inserted into the section (13), the flexible hose (24) is locked and fixed by the stopper (28).To remove, press the operation button (29) to push down the stopper (28) and remove the flexible hose (24). Remove the hose (24).At this time, the opening/closing lid (23) of the hose outlet (4) is brought into close contact with the front panel (14) by the spring (30) provided at the pivot portion.The flexible hose (24) Furthermore, a vibrator (31) and a floor suction tool (32) are connected to perform cleaning.

By changing the resistance value of the variable resistor built into the hand switch section (6) of the flexible hose (24), the central processing unit (9) reads and calculates the change through the input/output port section (8). and connect the required output to the input/output port section (8
) to the blower control circuit (12), allowing m nodes of electric blower input.

In the above configuration, the pressure sensor (20), which has been preset to the same output under certain conditions, is connected to each hose outlet (4).
), and at the time when the Cent Chill Cleaner is actually installed, insert the hose (24) into one of each hose outlet (4), and store the output signal of the pressure sensor (20) at that time in the memory device (10). ) as the initial value. Do this for all hose outlets (4) and multiple blower inputs. From this, when the blower input is other than the maximum value, the initial value stored above and the blower The central processing unit 9) outputs the suction force to the blower control circuit (12) via the input/output port section (8) so that the suction force is the same at any hose outlet from the input. When the blower input is at its maximum, this is the time when the highest suction force is desired, as described above, and since operating this will essentially lead to a decrease in the suction force, it is not operated.

FIG. 5 is a flowchart showing the operation flow of the centigrade cleaner of the present invention.

g) Effects of the Invention Since the cent chill cleaner according to the present invention is constructed as described above, it is possible to exert the maximum suction power of the blower when the blower input is at its maximum, and at the same time, it can be used by reducing the blower input. In this case, substantially the same suction force can be obtained at any hose insertion port, improving usability.

[Brief explanation of drawings]

Fig. 1 is a system configuration diagram of the cent chill cleaner according to the present invention, Fig. 2 is a sectional view of the main part of the hose insertion port, Fig. 3 is a suction characteristic diagram of the conventional hose insertion port, and Fig. 4 is FIG. 5, which is a suction characteristic diagram of the hose insertion port according to the present invention, is a flowchart showing the flow of operation in the embodiment of the present invention. (2)... Vacuum cleaner body, (3)... Piping, (4)...
...Hose outlet, (6ri...Hand switch part, (8)
)...Input/output port unit, (9)...Central processing unit, (10>...Storage device, (12)...Blower control circuit.

Claims (1)

[Claims] 1) It has multiple hose outlets, each hose outlet is connected to the vacuum cleaner body by piping, and a pressure sensor is provided at each hose outlet or in the middle of the piping, and the output signal is sent to the input/output port. The output signal of each pressure sensor in the operating state when the main unit is installed is stored in the storage device, and the output signal of the vacuum cleaner blower is input to the central processing unit through the main unit and manually controlled. A central cleaner characterized in that when the pressure is not at the maximum, a blower control circuit is controlled by the output signals of the respective pressure sensors to maintain a substantially constant suction force at each hose insertion port.