JPH0779793B2 - Vacuum cleaner - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a vacuum cleaner used in general households.

2. Description of the Related Art A conventional vacuum cleaner of this type will be described with reference to the drawings. In FIG. 4, reference numeral 1 denotes a main body of an electric vacuum cleaner having a motor 2 built therein, which has a hose 3, an extension pipe 4, and a floor suction tool 5 in front thereof. A tip pipe 6 is fixed to the hose 3, and the extension pipe 4 is detachably fitted at the tip thereof. Further, behind the bent portion 7 of the tip pipe 6, there are provided a grip portion 8 which a user grips during cleaning, and a switch 9 for starting and stopping the motor 2 provided in the main body 1.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention However, in the above-described conventional configuration, when the user moves an object placed on the floor such as a chair or a desk during cleaning to make it easier to clean, the tip pipe held Place 6 on the floor and move the object. At this time, the motor 2 was in an operating state, but cleaning was not performed and power consumption was completely wasted.

Also, during this period, the motor 2 is still operating, so noise was generated even though cleaning was not actually performed.

In view of the above problems, the present invention provides an electric vacuum cleaner that saves power and can be cleaned quietly.

Means for Solving the Problems In order to solve the above problems, a main body of a floor moving type vacuum cleaner having a built-in motor and the like, a hose connected to the suction side of the main body, an extension pipe, and a floor suction tool are provided. A detection unit arranged on a handle portion provided on the tip side of the hose for detecting the hand of an operator, and a control unit for controlling the operation of the motor based on a signal from the detection unit, A switch for stopping the operation of the motor is provided in the vicinity of the detection part of the handle part regardless of the signal from the detection part.

Action In the above means, when the operator grips the handle portion with the hand, the detection portion detects this, and the control means puts the motor in an operating state. The motor will automatically stop when you release it. Further, even when the operator grips the handle portion, the operation of the motor is forcibly stopped by operating the switch.

Embodiment An embodiment of the present invention will be described below with reference to the drawings. First
In FIG. 3 to FIG. 3, 11 is a main body in which a motor 12 and the like are incorporated, and a hose 13, an extension pipe 14, and a floor suction tool 15 are attached to the front thereof. Reference numeral 16 is a front end pipe fixed to the front of the hose 13, and is detachably fitted to the extension pipe 14 at the front. Behind the bent portion 17 of the tip pipe 16, there are provided a grip portion 18 that a user holds during cleaning and a switch 19 for starting and stopping the motor 12.

Inside the tip pipe 16, an LED 20 and a phototransistor 21 are arranged opposite to each other with a grip 18 therebetween. As shown in FIG. 2, when the user grips the grip 18, the light from the LED 20 is emitted. It is cut off and a signal is transmitted from the phototransistor 21. 22 is a hand detection circuit for detecting the output of the phototransistor 21, and 23 is the hand detection circuit 22.
Is a phase control circuit that sends a signal to a bidirectional thyristor 24 that controls the voltage applied to the motor 12 by receiving the output of.
25 is a power supply.

The operation of the electric vacuum cleaner configured as described above will be described.
When the switch 19 is turned on and the handle 18 is grasped, the light from the LED 20 is cut off, a signal is sent from the phototransistor 21 to the phase control circuit 23, and the motor 12 is started. You can clean in this state.

Next, in order to make it easier for the user to move the chair, desk or the like placed on the floor surface for cleaning, the tip pipe 16 that is being held is placed on the floor surface and the object is moved. At this time, the light from the LED 20 is received by the phototransistor 21 even if the switch 19 is not operated one by one.
2. The motor 12 stops through the phase control circuit 23. Then, when the grip portion 18 of the tip pipe 16 is again gripped, the motor 12 is activated and normal cleaning can be performed.

Thus, when not cleaning, i.e. the floor suction device 15
When is not operated, the motor 12 built in the main body 11 is not operated, and power consumption can be avoided without operating the switch 19 one by one.

In addition, since the motor 12 is stopped when not cleaning at the same time, noise is not generated at all, and cleaning can be performed quietly and comfortably without feeling in the ears.
For example, even if there is a sudden visitor during cleaning, it is possible to respond immediately, and even if a telephone call comes in, it is also possible to have a quick conversation.

By the way, in this kind of floor-moving type electric vacuum cleaner, when the cleaning place is changed, the vacuum cleaner may be moved via the hose 13 or the like while holding the grip portion 18. If the motor 12 is only automatically started / stopped via the detection unit consisting of the LED 20 and the phototransistor 21, the motor will move even during the above movement.
12 will be operated, but in the configuration of this embodiment, the switch
19 can be operated to eliminate unnecessary operation of the motor 12. Since the switch 12 is arranged in the vicinity of the detection portion of the handle portion 18, it can be easily operated while holding the handle portion 18.

EFFECTS OF THE INVENTION As described above, according to the present invention, the main body of the floor moving type vacuum cleaner having a built-in motor and the like, the hose connected to the suction side of the main body,
An extension pipe, a floor suction tool, and a detection unit which is arranged on a handle portion provided on the tip side of the hose and detects a worker's hand, and controls the operation of the motor based on a signal from the detection unit. And a switch for stopping the operation of the motor irrespective of the signal from the detection unit is provided in the vicinity of the detection unit of the handle, so that it is scattered on the cleaning surface. When you need to clean up things that are in the air or when there is a visitor, simply remove your hand from the handle to automatically stop the motor operation, resulting in reduced power consumption and quieter operation. But effective, efficient,
Moreover, a comfortable cleaning work can be performed.

Further, according to the present invention, the motor can be forcibly stopped by the switch regardless of the state of the detecting portion, so that the motor can be stopped while holding the grip portion when changing the cleaning place, which is economical and quiet. In terms of aspect, further effects can be expected. Further, since the switch is arranged in the vicinity of the detection portion of the handle portion, the switch can be operated without difficulty, and thus the overall usability can be remarkably enhanced.

[Brief description of drawings]

FIG. 1 is an external perspective view of an electric vacuum cleaner according to an embodiment of the present invention, FIG. 2 is an enlarged view of the relevant parts, FIG. 3 is the same circuit diagram, and FIG.
The figure is an external perspective view of a conventional vacuum cleaner. 11 …… Main body, 12 …… Motor, 16 …… Tip pipe, 18…
… Handle part, 20 …… Light emitting part (LED), 21 …… Light receiving part (phototransistor), 22 …… Hand detection circuit, 23 …… Phase control circuit.

Claims (2)

[Claims] 1. A main body of a floor moving type vacuum cleaner having a built-in motor and the like, a hose connected to the suction side of the main body, an extension pipe, and a floor suction tool, and a handle portion provided on the tip side of the hose. It is provided with a detection unit arranged to detect the hand of the worker and a control unit for controlling the operation of the motor based on a signal from the detection unit. An electric vacuum cleaner equipped with a switch that stops the operation of the motor regardless of the signal from the detection unit. 2. The electric vacuum cleaner according to claim 1, wherein a light emitting portion and a light receiving portion are provided to face each other at a predetermined interval to constitute a detecting portion.