JPH0335259Y2 - - Google Patents

Description

[Detailed description of the invention] [Purpose of the invention] (Field of industrial application) The present invention is a vacuum cleaner in which the speed of an electric blower is controlled by a hand-held control operator provided on the grip of the suction hose. This relates to something that displays driving details on the grip.

(Prior Art) In a conventional vacuum cleaner in which the speed of an electric blower provided in the vacuum cleaner body can be controlled using the grip part of the hose, as shown in FIG. A variable resistor control operator 53 is provided which changes the resistance value of the variable resistor by sliding, rotating or pressing and controls the input to the electric blower.
A display section 54 that displays the operating status on this grip section 52
is formed.

Note that the driving details displayed on the display unit 54 are 1.
It is common to display the speed control strength of the electric blower, such as strong, medium, or weak.

Also, a vacuum cleaner is known in which the control state of an electric blower by a control operator on a hose grip is displayed by blinking a light emitting diode provided in the vacuum cleaner body.

(Problem to be solved by the invention) The display section 5 is attached to the grip section 52 of the conventional hose 51.
4, when cleaning, as shown in FIG. is hidden, hose 5
There was a problem in that the operating status of the electric vacuum cleaner could not be checked while holding the grip part 52 of No. 1.

Moreover, the driving details displayed on the display unit 54 are
It is common to display one type of speed control strength such as strong, medium, and low for the electric blower, so it is easy to know which strength to select for various purposes such as the type of cleaning area. Cleaning may be carried out in slow and unsuitable operating conditions.

In addition, in vacuum cleaners that display the control status of the electric blower using the control operator on the hose grip by blinking light emitting diodes installed in the vacuum cleaner body, the control status of the electric blower can be displayed by looking back at the vacuum cleaner body. There was a problem that I couldn't confirm without looking.

The present invention was developed in view of the above-mentioned problems.The operating status can be easily checked whether the hose grip is held with either the right or left hand.Furthermore, by displaying the usage indication, it is possible to easily check the operating status. To provide an easy-to-use vacuum cleaner that allows the user to easily select a suitable operating state.

[Structure of the idea]

(Means for Solving the Problems) The vacuum cleaner of the present invention includes a vacuum cleaner body that incorporates an electric blower and a control circuit for controlling the speed of the electric blower, and a vacuum cleaner that can be freely attached to and detached from the suction port of the vacuum cleaner body. and a hose having a control section connected to the grip section and outputting a speed control signal to the control circuit, and a speed control signal that moves in the longitudinal direction of the grip section and outputs from the control section to the grip section of the hose. A control operator for changing the signal is provided, and a display section is provided along the side of the control operator to provide a first display corresponding to the movement position of the control operator. A second display section is provided on the opposite side to the hose side and displays a display linked to the movement position of the control operator, and one of the display sections displays the strength according to the speed control of the electric blower, The other side is used to indicate the purpose of cleaning according to the location to be cleaned.

(Function) In the vacuum cleaner of the present invention, in addition to the first display section provided on the side of the control operator of the hose grip, there is also a first display section provided on the tip side of the hose grip. Since a second display section is provided that displays a display in conjunction with the operation, even when the grip section is gripped, the operating state can be checked on the display section at the tip end of the grip section.

In addition, since one of these displays is a usage indication, even if you do not know the speed control strength of the electric blower that is suitable for various applications, such as the type of cleaning area, you can
By checking the usage display, cleaning can be performed by selecting an operating state suitable for the usage.

(Embodiment) Hereinafter, the configuration of an embodiment of the present invention will be described with reference to the drawings.

In Fig. 1, reference numeral 1 denotes a vacuum cleaner body, in which an electric blower 2 and a control circuit for controlling the speed of the electric blower 2 are built-in, and a dust collection filter can be inserted and removed at the front of the vacuum cleaner body 1. Installed dust collection case 3
is attached removably. A suction port 5 to which a suction hose 4 is detachably inserted and connected is opened at the front of the dust collection case 3. This hose 4
A connecting pipe portion 6 is provided at the base end of the suction port 5 to be plugged and connected to the suction port 5.
A connection plug 7 is provided which is electrically connected to a connector (not shown) provided adjacent to the connector. Further, a grip portion 8 is integrally provided at the tip of the hose 4 to which an extension tube or the like can be inserted and connected in a removable manner.

A guide groove 9 is formed in the grip portion 8 of the hose 4 along the longitudinal direction of the grip portion 8 . A control operator 10 is slidably provided in the guide groove 9. Further, a first display section 11 is formed along the side of the guide groove 9 of the grip section 8 to display the purpose of the cleaning place using illustrations such as a rug, a tatami mat, a sofa, a curtain, etc. In addition,
This first display section 11 displays a display that corresponds to the speed of the electric blower 2 that is adjusted according to the movement position of the control operator 10. Furthermore, a window-shaped second display section 13 is formed on the grip section 8 of the hose 4 on the side opposite to the hose 4 side.
This second display section 13 has a display other than the first display section 11 along the guide groove 9, such as off, low, etc.
A display 14 indicating the speed control strength display mode of the electric blower 2, such as medium, standard, and strong, is displayed. The display 14 displayed on the second display section 13 is also adapted to correspond to the movement position of the control operator 10.

As shown in FIG. 3, the control operator 10 has a sliding piece 15 that is slidably inserted into the guide groove 9 and protrudes from the lower surface. is provided with a retaining hook portion 16,
A rack piece 17 disposed in the inner chamber of the grip part 8 and extending in the moving direction of the control operator 10 is engaged and connected to the lower part of the sliding piece part 15. It is engaged with a pinion 18 disposed in the chamber, and a display 14 displayed from the second display section 13 is formed on the upper surface of this pinion 18.

Further, a variable resistor 19 serving as a control unit that outputs a speed control signal is provided in the inner chamber of the grip portion 8, and a slider 20 of the variable resistor 19 is formed integrally with the rack piece 17. By sliding this slider 20, the resistance value of a variable resistor 19 serving as a control section is changed. This variable resistor 19 is connected to the connection plug 7 via a conductor inside the hose 4.

Next, the electric circuit of the control circuit will be explained with reference to FIG.

The electric blower 2 and a bidirectional thyristor 22 are connected in series to an AC power source 21, and a protective resistor 23 is connected in parallel with the bidirectional thyristor 22.
and a capacitor 24 are connected in series. Further, the gate of the bidirectional thyristor 22 is connected to a connection point of diodes 26 and 27 of a control circuit 25, and these diodes 26 and 27 are connected to a full-wave rectifier circuit 29 connected to the AC power supply 21 via a resistor 28. It is connected to the. This rectifier circuit 29 is composed of diodes 30, 31, 32, 33,
A constant voltage circuit 36 consisting of a resistor 34 and a Zener diode 35 is connected to the rectifier circuit 29.

Further, the rectifier circuit 29 is connected to the control circuit 2 via a resistor 38 and a series-connected variable resistor 19 which serves as a control section provided in the hose 4.
5 is connected. This control circuit 25 has a capacitor 40 connected to the switch 37 of the control section via a resistor 39, and a time constant circuit 41 is formed by the resistor 38, a variable resistor, the resistor 39, and the capacitor 40. The anode of PUT 42 is connected to the connection point between resistor 39 and capacitor 40 of time constant circuit 41. Also, this PUT4
A connection point between resistors 43 and 44 connected in series to the connection point between the resistor 34 of the constant voltage circuit 36 and the Zener diode 35 is connected to the gate of No. 2. Further, the gate of a thyristor 46 is connected to the cathode of the PUT 42 via a resistor 45, this thyristor 46 is connected to the rectifier circuit 29 via a resistor 47, and the diode 26 is connected in parallel to the resistor 47 and the thyristor 46. , 27 are connected. Further, a resistor 48 is connected to the cathode side of this thyristor 46. Further, the anode of the bidirectional thyristor 22 is connected to the connection point with the diodes 26 and 27 via a resistor 49.

Next, the operation of this embodiment will be explained.

When cleaning by gripping the grip part 8 of the hose 4 connected to the vacuum cleaner body 1, for example,
When the control operator 10 is moved along the guide groove 9 according to the place to clean a sofa, curtain, etc., the slider 20 of the variable resistor 19 moves integrally with the control operator 10, and the variable resistor 19 The resistance value of the electric blower 2 is changed, and the speed of the electric blower 2 is adjusted and controlled.

As the control operator 10 moves, the rack piece 17 also moves, and the pinion 18 meshed with the rack piece 17 rotates, and the display 14 is displayed in conjunction with the movement position of the control operator 10 on the pinion 18. It is displayed on the second display section 13. Therefore, the display on the second display section 13 and the first display section 1 that can be directly confirmed in accordance with the movement position of the control operator 10 are
You can check the setting status by checking the display of 1.

As shown in FIG. 4, when the grip portion 8 of the hose 4 is gripped, the first display portion 11 formed along the guide groove 9 is hidden, but the grip portion 8
A second display section 13 is formed on the distal end side, and even if the grip section 8 is held with the right or left hand, the second display section 13 is not displayed.
Since the display section 13 of
The control status of the electric blower 2 can be easily confirmed by the display section 13.

Note that the first display part 11 formed along the guide groove 9 of the grip part 8 of the hose 4 is associated with the position of the control operator 10, and the user can see which position or position the control operator 10 is located in compared to the control operator for rotational operation. Control operator 1 in the direction
You can easily decide whether to operate 0 or not. Also,
This display section 11 can be made relatively large compared to the display of the rotation control operator, and a sufficient display can be formed even if the number of switches such as clicks is increased.

In addition, one of the first display section 11 and the second display section 13 is used to display the speed control strength of the electric blower 2 such as strong, medium, and low, and the other is used to display the speed control strength of the electric blower 2 such as rugs, tatami mats, sofas, curtains, etc. Since the usage display is based on the cleaning location, even if you do not know the speed control strength of the electric blower 2 that is suitable for various applications such as the type of cleaning location, you can check the usage display to find the operating state suitable for the usage. You can select and clean.
Moreover, since the usage indication is universal, it is possible to indicate both domestic and foreign specifications.

Next, the operation of the control circuit 25 will be explained.

When the switch 37 is turned on by operating the control operator 2 of the grip part 8 of the hose 4, the AC power supply 21 is full-wave rectified by the rectifier circuit 29, and the Zener diode 35
The amount of charge of the regulated voltage is controlled by the safety resistor 38, the variable resistor 19, and the safety resistor 39, and is applied to the capacitor 40, so that the capacitor 40 is charged. When the voltage across the capacitor 40 reaches the reference voltage set by the resistors 43 and 44, the PUT 42 turns on, and the charge in the capacitor 40 is discharged from the anode of the PUT 42 to the cathode. A trigger current flows through the gate, and the thyristor 46 is turned on. When the thyristor 46 is turned on, current flows from the rectifier circuit 29 to the resistor 47 and the thyristor 46, and the electric blower 2,
From the first anode of the bidirectional thyristor 22 to the gate, the diode 26, the resistor 47, and the thyristor 4
6. Current flows through the diode 31 of the rectifier circuit 29. Then, when the polarity of the AC power supply 21 is reversed,
Current flows through the diode 30 of the rectifier circuit 29, the resistor 47, the anode of the thyristor 46, the diode 27, and the second anode of the bidirectional thyristor 22, and the bidirectional thyristor 22 is reliably turned on even if the current state is oscillating. Since the current continues to flow until the terminal voltage drops, the bidirectional thyristor 22 is reliably triggered even in the electric blower 2 with an inductive load.

Then, a control operator 10 of the grip portion 8 of the hose 4
When the resistance value of the variable resistor 19 changes with the operation of
As a speed control signal, the charging cycle of the capacitor 40 changes, the turn-on timing of PUT 42 changes,
The speed of electric blower 2 is changed.

In addition, in the embodiment, the first display section 11 and the second display section 1 formed on the grip section 8 of the hose 4 are
The display 14 of No. 3 is not limited to illustrations and letters, but may be any appropriate display such as a pie chart, and furthermore, a liquid crystal display, a light emitting diode, or the like may be used.

[Effect of idea]

According to the present invention, the grip portion of the hose is provided with a first display portion that displays a display corresponding to the moving position of the control operator along the side of the control operator that moves along the longitudinal direction of the grip portion. In addition, a second display is provided on the side opposite to the hose side of the control operator, that is, on the tip end side of the grip part, which displays a display that is linked to the movement position of the control operator.
Since the display part is provided, whether the grip part is held with the right hand or the left hand, the operating status can be easily checked on the second display part on the tip side of the grip part.
In addition, one of these display sections displays the strength according to the speed control of the electric blower, and the other displays the purpose according to the cleaning place, so the speed control of the electric blower can be adjusted to suit various uses such as the type of cleaning place. Even if you do not know the strength, by checking the usage display, you can select the operating state suitable for the usage and perform cleaning, making it easier to use.

[Brief explanation of drawings]

Fig. 1 is a perspective view of a vacuum cleaner showing an embodiment of the present invention, Fig. 2 is a perspective view of the grip of the same hose;
Fig. 3 is a perspective view of the control section of the above, Fig. 4 is a perspective view of the above in use, Fig. 5 is an electric circuit diagram of the above, and Fig. 6 is a perspective view of the grip of the hose of a conventional vacuum cleaner. be. 1...Vacuum cleaner body, 2...Electric blower, 4...
Hose, 5...Suction port, 8...Grip part, 10...
Control operator, 11...first display section, 13...second display section, 19...variable resistor of control section, 25
...control circuit.

Claims (1)

[Claims for Utility Model Registration] A vacuum cleaner body incorporating an electric blower and a control circuit for controlling the speed of the electric blower, and a vacuum cleaner body detachably connected to the suction port of the vacuum cleaner body and having the control circuit in the grip. a hose having a control part that outputs a speed control signal to the hose, and a control operator that moves in the longitudinal direction of the grip part and changes the speed control signal output from the control part, on the grip part of the hose, A first display section is provided along the side of the control operator to display a display corresponding to the movement position of the control operator, and a first display section is located on the opposite side of the control operator to the hose side of the control operator. A second display section is provided that displays a display linked to the moving position, one of which displays the strength according to the speed control of the electric blower, and the other display the purpose according to the cleaning location. A vacuum cleaner featuring: