JPH0739502A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To reduce the power necessary for handling by preliminarily determining the rotation direction of a rotary brush by foreseeing the next direction by controlling the rotation direction of the rotary brush to the advancing direction with output signals of a light emitter and a light detector set on a suction device with a rotary brush for floor. CONSTITUTION:A manual switch to turn on and off a rotary brush, a freely rotatable shaft 6 and an asymmetric weight 7 connected in the perpendicular direction to the shaft 6 are equipped on an electric suction device with rotary brush for floor driven by a motor. This is equipped with a set of light emitter and detector, between which the rotation range of the weight 7 put in, and a control means to input signals from detector. The control means controls the rotation direction of the motor to drive the rotary brush in the same direction as the direction the suction device advancing and changes the direction before the direction change by signals from the detection element 9.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric vacuum cleaner equipped with an electric floor suction tool having a rotating brush driven by an electric motor.

[0002]

2. Description of the Related Art In recent years, electric vacuum cleaners have been required to reduce the operation force of a floor suction tool that reciprocates a cleaning surface.

Conventionally, this type of electric vacuum cleaner has generally been constructed as shown in FIGS. 14 and 15. The configuration will be described below.

As shown in the figure, the cleaner body 50 has a hose 52, an extension pipe 53 and an electric floor suction tool 54 connected to a suction port 51, and a hand switch 55 is provided at the tip of the hose 52. Electric blower 5 installed in the cleaner body 50
6 is controlled. A switch for turning on and off the rotating brush 57 of the electric floor suction tool 54 is provided near the hand switch 55. The rotating brush 57 scrapes up dust on the floor surface and improves the suction efficiency of dust. The electric blower 56 is controlled by the hand switch 55 and the phase control circuit 58, and the electric motor 5 of the electric floor suction tool 54 is controlled.
9 is controlled by the switch 60. That is, by changing the resistance value of the hand switch 55, the phase control circuit 58
By this, the input of the electric blower 56 is changed, and when the switch 61 is closed, the electric power is supplied to the electric motor 59 to rotate the rotary brush 57 of the electric floor suction tool 54.

[0005]

In such a conventional electric vacuum cleaner, since the rotating brush of the electric floor suction tool rotates in one direction, the degree of operation force and the amount of operation force are different in the front and rear directions. It had a problem of different dust efficiency.

An object of the present invention is to solve the above-mentioned problems, and predicts the next action of the user, and determines the rotation direction of the rotary brush provided on the floor suction device in advance to reduce the operation force. That is the first purpose.

A second object is to improve the dust collection efficiency when cleaning the carpet.

A third object is to stop the rotary brush for reducing the operating force in the air.

[0009] Further, it is necessary to stop the rotating brush in the air in order to improve the dust collection efficiency when cleaning the carpet.
The purpose is.

A fifth object of the present invention is to stop the rotary brush for reducing the operating force in the air without mechanical contact.

A sixth object is to stop the rotating brush in the air for improving the dust collection efficiency when cleaning the carpet without any mechanical contact.

[0012]

To achieve the first object of the present invention, an electric floor suction tool having a rotating brush driven by an electric motor, and a manual switch for turning on and off the rotating brush are provided. A single rotatable shaft vertically installed on the electric floor suction tool, an asymmetrical weight connected in the vertical direction of the shaft, and a rotation range of the weight, and the electric floor. A pair of light emitting elements and light receiving elements installed in one of the advancing directions of the suction device, and control means for inputting a signal from the light receiving elements, wherein the control means uses the signal from the light receiving elements to drive the electric floor. The first problem solving means is to control the rotation direction of the electric motor that drives the rotary brush in the same direction as the advancing direction of the suction tool.

In order to achieve the second object, an electric floor suction tool equipped with a rotating brush driven by an electric motor, and a manual switch for turning on and off the rotating brush,
One rotatable shaft installed vertically to the electric floor suction tool, an asymmetrical weight connected in the vertical direction of the shaft, a rotation range of the weight, and the electric floor suction. A pair of a light emitting element and a light receiving element installed in one of the traveling directions of the tool, and a control means for inputting a signal from the light receiving element, wherein the control means receives the signal from the light receiving element to suck the electric floor. A second problem solving means is to control the rotation direction of the electric motor that drives the rotary brush in the direction opposite to the traveling direction of the tool.

In order to achieve the third object, an electric floor suction tool provided with a rotating brush driven by an electric motor, and a manual switch for turning the rotating brush on and off,
A variable auxiliary roller having a vertically movable mechanism installed as an auxiliary roller of the electric floor suction tool, an auxiliary switch for turning on and off the rotary brush connected to the variable auxiliary roller, and the electric floor suction tool A rotatable shaft installed vertically to the shaft, an asymmetrical weight connected in the vertical direction of the shaft, the rotation range of the weight, and one of the moving directions of the electric floor suction tool. A pair of installed light emitting element and light receiving element, and a control means for inputting a signal from the light receiving element, wherein the control means is in the same direction as the traveling direction of the electric floor suction tool according to the signal of the light receiving element. The third problem solving means is that the rotation direction of the electric motor that drives the rotary brush is controlled.

In order to achieve the fourth object, an electric floor suction tool provided with a rotating brush driven by an electric motor, and a manual switch for turning on and off the rotating brush,
A variable auxiliary roller having a vertically movable mechanism installed as an auxiliary roller of the electric floor suction tool, an auxiliary switch for turning on and off the rotary brush connected to the variable auxiliary roller, and the electric floor suction tool A rotatable shaft installed vertically to the shaft, an asymmetrical weight connected in the vertical direction of the shaft, the rotation range of the weight, and one of the moving directions of the electric floor suction tool. A pair of light emitting element and light receiving element installed, and a control means for inputting a signal from the light receiving element, wherein the control means is in a direction opposite to the traveling direction of the electric floor suction tool according to the signal of the light receiving element. The fourth problem solving means is that the rotation direction of the electric motor that drives the rotary brush is controlled.

In order to achieve the fifth object, an electric floor suction tool provided with a rotating brush driven by an electric motor, and a manual switch for turning the rotating brush on and off,
One rotatable shaft installed vertically to the electric floor suction tool, a pair of control plates that are symmetrical in the vertical direction of the shaft, and an asymmetrical weight are connected, and the control plate has: A variable auxiliary roller of a vertically movable mechanism installed as an auxiliary roller of an electric floor suction tool and an auxiliary stopper for stopping or stopping the control plate connected to the variable auxiliary roller are adjacent to each other, and A pair of light-emitting element and light-receiving element, which are installed in a target with respect to the shaft in the traveling direction of the electric floor suction tool, sandwiching the rotation range of the weight,
A control means for inputting a signal from the light receiving element,
According to a fifth aspect of the present invention, the control means controls the rotation direction of the electric motor that drives the rotary brush in the same direction as the traveling direction of the electric floor suction tool based on the signal from the light receiving element.
Is used as a means for solving the problem.

In order to achieve the sixth object, an electric floor suction tool equipped with a rotating brush driven by an electric motor, and a manual switch for turning on and off the rotating brush,
One rotatable shaft installed vertically to the electric floor suction tool, a pair of control plates that are symmetrical in the vertical direction of the shaft, and an asymmetrical weight are connected, and the control plate has: A variable auxiliary roller of a vertically movable mechanism installed as an auxiliary roller of an electric floor suction tool and an auxiliary stopper for stopping or stopping the control plate connected to the variable auxiliary roller are adjacent to each other, and A pair of light-emitting element and light-receiving element, which are installed in a target with respect to the shaft in the traveling direction of the electric floor suction tool, sandwiching the rotation range of the weight,
A control means for inputting a signal from the light receiving element,
According to a sixth aspect of the present invention, the control means controls a rotation direction of an electric motor that drives the rotary brush in a direction opposite to a traveling direction of the electric floor suction tool according to a signal from the light receiving element.
Is used as a means for solving the problem.

[0018]

According to the first means for solving the above problems, the present invention provides:
For the axis laid vertically in the electric floor suction tool,
Since the weight is connected asymmetrically, it rotates back and forth due to its inertial force according to the traveling direction of the electric floor suction tool, so if the weight is between the light emitting element and the light receiving element, Infrared is blocked and the signal from the light receiving element is high (Hi)
If there is no weight between the light emitting element and the light receiving element,
The signal of the light receiving element becomes low. in this way,
The control means can control the rotation direction of the rotary brush by the signal of the light receiving element, and can control the rotation direction of the electric motor in the same direction as the traveling direction of the electric floor suction tool.

According to the second problem solving means, the control means controls the rotation direction of the rotary brush by the signal of the light receiving element, and controls the rotation direction of the electric motor in the direction opposite to the traveling direction of the electric floor suction tool. be able to.

Further, according to the third means for solving the problems, when the electric floor suction tool is in the air, the variable auxiliary roller is lowered in the downward direction of the electric floor suction tool, so that the auxiliary switch is turned off and the rotary brush Even if the manual switch is turned on, the electric motor for rotating the electric floor suction tool in the same direction as the traveling direction is turned off to ensure safety.

Further, according to the fourth means for solving the problems, when the electric floor suction tool is in the air, the variable auxiliary roller is lowered in the downward direction of the electric floor suction tool, so that the auxiliary switch is turned off. Even if the manual switch is turned on, the electric motor for rotating the electric floor suction tool in the direction opposite to the traveling direction is cut off, which ensures safety.

According to the fifth problem solving means, if the weight is between the light emitting element and the light receiving element of one of the two pairs of the light emitting element and the light receiving element, the signal of one light receiving element is high (H
i), the signal of the other light receiving element is low (Lo).
w). If there is no weight between either light emitting element and light receiving element, the signals of both light receiving elements are low (L
ow). At this time, if the control means turns off the electric power of the electric motor, when the electric floor suction tool is in the air, the auxiliary auxiliary roller lowers the control plate because the variable auxiliary roller moves downward. The pressing and weight are lost between the light emitting element and the light receiving element of both pairs, and even if the manual switch of the rotating brush is turned on, the electric motor for rotating in the same direction as the traveling direction of the electric floor suction tool is cut off, It ensures safety.

Further, according to the sixth means for solving the problems, when the electric floor suction tool is in the air, the variable auxiliary roller moves downward in the electric floor suction tool so that the auxiliary stopper presses the control plate. The weight is lost between the light emitting element and the light receiving element of both pairs, and even if the manual switch of the rotating brush is turned on, the electric motor for rotating the electric floor suction tool in the direction opposite to the traveling direction is cut off and safety is improved. To secure.

[0024]

【Example】

(Embodiment 1) Hereinafter, a first embodiment of the present invention will be described with reference to FIG.
A description will be given with reference to (a) and (b), FIG. 2, FIG. 3, and FIGS.

As shown in FIG. 3, an electric floor suction tool 1
Is provided with a rotating brush 4 connected to the electric motor 2 by a belt 3, and the rotating brush 4 is driven by the electric motor 2. The direction sensor 5 detects the moving direction of the electric floor suction tool 1.

Further, as shown in FIGS. 1 (a) and 1 (b),
The direction sensor 5 includes a rotatable shaft 6 that is vertically attached to the bottom surface of the electric floor suction tool 1, and an asymmetric weight 7 that is connected to the shaft 6. A pair of light emitting element 8 and light receiving element 9 are fixedly installed so as to sandwich the weight 7 in the traveling direction of.

Further, as shown in FIG. 2, the control means 10 inputs the output of the direction sensor 5 (output of the light receiving element 9), and the output of the direction sensor 5 causes the same as the traveling direction of the electric floor suction tool 1. The rotation direction of the electric motor 2 that drives the rotating brush 4 in the direction is controlled. That is, when the transistors 11 and 12 are turned on by the output of the control means 10, the electric motor 2 drives the rotating brush 4 in a direction to move the electric floor suction tool 1 forward, and when the transistors 13 and 14 are turned on, the electric motor 2 is turned on. Drives the rotary brush 4 in a direction in which the electric floor suction tool 1 is moved backward. The hand switch 15 turns the rotary brush 4 on and off.

Reference numeral 16 in FIG. 3 is an auxiliary roller provided in the electric floor suction tool 1. In the above configuration, FIG.
The operation will be described with reference to (a) and (b). First, when the hand switch 15 is closed and the electric floor suction tool 1 is moved forward on the carpet 17 as shown in FIG. ,
The weight 7 rotates backward due to inertial force and comes between the light emitting element 8 and the light receiving element 9. As a result, the output of the light receiving element 9 becomes high (Hi), and the control means 10 causes the transistor 1
Turning 1 and 12 on, the rotary brush 4 is rotated in the front direction of the electric floor suction tool 1. Next, as shown in FIG. 4 (b), at the moment when the electric floor suction tool 1 is turned from the front direction to the rear direction on the carpet 17, the electric floor suction tool 1 is stopped and the weight is applied by its inertial force. 7 is separated from the light emitting element 8 and the light receiving element 9, the output of the light receiving element 9 becomes low, and the control means 10 turns on the transistors 13 and 14 to rotate the electric floor suction tool 1 in the backward direction. Rotate the brush 4.
Similarly, in FIG. 4 (c), the weight 7 comes between the light emitting element 8 and the light receiving element 9 due to the inertial force at the moment of changing the direction of the electric floor suction tool 1 from the rear direction to the front direction. The rotating brush 4 is rotated in the front direction of the suction tool 1.

As described above, according to the first embodiment of the present invention, the rotating brush 4 rotates in the same direction as the traveling direction of the electric floor suction tool 1, and the operating force on the carpet 17 can be reduced.

(Embodiment 2) Next, a second embodiment of the present invention will be described with reference to FIGS. 1 (a) and 1 (b), FIG. 2, FIG. 3, and FIG.
A description will be given with reference to (a) to (c). The control means 10 in FIG. 2 drives the rotating brush 4 in the direction opposite to the traveling direction of the electric floor suction tool 1. The other structure is similar to that of the first embodiment.

The operation of the above configuration will be described with reference to FIGS. 5A and 5B. First, the hand switch 1
5 is closed and the electric floor suction device 1 is moved forward on the carpet 17 as shown in FIG. 5A, the weight 7 is rotated rearward by the inertial force, and the light emitting element 8 and the light receiving element 9 are moved. Come in between. As a result, the output of the light receiving element 9 becomes high (Hi), and the control means 10 turns on the transistors 13 and 14 to rotate the rotary brush 4 in the rearward direction of the electric floor suction tool 1. Next, as shown in Fig. 5 (b), at the moment when the electric floor suction tool 1 is turned from the front direction to the rear direction on the carpet 17, the electric floor suction tool 1 is stopped and the weight is applied by its inertial force. 7 is separated from the light emitting element 8 and the light receiving element 9,
Becomes low, and the control means 10 turns on the transistors 11 and 12 to rotate the rotary brush 4 in the forward direction of the electric floor suction tool 1. Similarly, FIG.
In (c), the weight 7 comes between the light emitting element 8 and the light receiving element 9 due to the inertial force at the moment when the electric floor suction tool 1 is turned from the rear direction to the front direction. Rotate the rotating brush 4 in the direction.

As described above, according to the second embodiment of the present invention, the rotary brush 4 rotates in the direction opposite to the traveling direction of the electric floor suction tool 1, and the dust collection efficiency of the carpet 17 can be improved.

(Embodiment 3) Next, a third embodiment of the present invention will be described with reference to FIGS. 1 (a) and 1 (b), FIG. 2, and FIG.
This will be described with reference to (c), FIGS. 6 (a) to 6 (c), and FIG.

The auxiliary switch 18 in FIG.
As shown in FIG. 6A, the variable auxiliary roller 19 attached to the bottom surface of the electric floor suction tool 1 and movable up and down is in contact with the electric floor suction tool 1 as shown in FIG. 6B. When in the air, the variable auxiliary roller 19 moves down to turn off the auxiliary switch 18. Further, when the electric floor suction tool 1 is on the carpet 17 as shown in FIG. 6C, the variable auxiliary roller 19 moves up and the auxiliary switch 18 is turned on. Then, the control means 20 includes the hand switch 15 and the auxiliary switch 1
Only when both 8 are turned on, the same operation as in the first embodiment is performed. The other structure is similar to that of the first embodiment.

The operation of the above structure will be described with reference to FIGS. 6B and 6C and FIGS. 4A to 4C. First, the hand switch 15 is closed, and as shown in FIG. When the electric floor suction tool 1 is placed on the carpet 17, the auxiliary roller 19 moves up and the auxiliary switch 18 is turned on. Then, when the electric floor suction tool 1 is moved forward on the carpet 17 as shown in FIG. 4 (a), the weight 7 rotates backward due to inertial force, and the space between the light emitting element 8 and the light receiving element 9 is increased. Come to As a result, the output of the light receiving element 9 becomes high (Hi), and the control means 20 turns on the transistors 11 and 12 to rotate the rotary brush 4 in the forward direction of the electric floor suction tool 1. Next, as shown in FIG. 4B, the electric floor suction tool 1 is attached to the carpet 17
At the moment when the direction is changed from the front direction to the rear direction, the electric floor suction tool 1 is stopped, the weight 7 is separated from the light emitting element 8 and the light receiving element 9 by the inertial force, and the output of the light receiving element 9 is low (Low). ), The control means 20 controls the transistor 1
Turning on 3 and 14, the rotary brush 4 is rotated in the rearward direction of the electric floor suction tool 1. Similarly, in FIG. 4 (c), the weight 7 comes between the light emitting element 8 and the light receiving element 9 due to the inertial force at the moment of changing the direction of the electric floor suction tool 1 from the rear direction to the front direction. The rotating brush 4 is rotated in the front direction of the suction tool 1. Further, as shown in FIG. 6B, when the electric floor suction tool 1 is raised in the air while the hand switch 15 is turned on, the auxiliary roller 19 is lowered, and the auxiliary switch 18 is turned off to control the control means 20. Stops the rotating brush 4.

As described above, according to the third embodiment of the present invention, the rotary brush 4 rotates in the same direction as the traveling direction of the electric floor suction tool 1, and the operation force on the carpet 17 can be reduced. ,
It is possible to ensure safety when the electric floor suction tool 1 is raised in the air.

(Embodiment 4) Next, a fourth embodiment of the present invention will be described with reference to FIGS. 1 (a) and 1 (b), FIG. 2, and FIG.
This will be described with reference to (c), FIGS. 6 (a) to 6 (c), and FIG. The control means 20 in FIG. 7 drives the rotating brush 4 in a direction opposite to the traveling direction of the electric floor suction tool 1. The other structure is similar to that of the third embodiment.

The operation of the above structure will be described with reference to FIGS. 6 (b) and 6 (c) and FIGS. 5 (a) to 5 (c). First, the hand switch 15 is closed, and as shown in FIG. 6 (c). When the electric floor suction tool 1 is placed on the carpet 17, the auxiliary roller 19 moves up and the auxiliary switch 18 is turned on. Then, when the electric floor suction tool 1 is moved forward on the carpet 17 as shown in FIG. 5 (a), the weight 7 rotates rearward due to the inertial force, so that the space between the light emitting element 8 and the light receiving element 9 is increased. Come to As a result, the output of the light receiving element 9 becomes high (Hi), and the control means 20 turns on the transistors 13 and 14 to rotate the rotary brush 4 in the backward direction of the electric floor suction tool 1. Next, as shown in FIG. 5B, the electric floor suction tool 1 is attached to the carpet 17
At the moment when the direction is changed from the front direction to the rear direction, the electric floor suction tool 1 is stopped, the weight 7 is separated from the light emitting element 8 and the light receiving element 9 by the inertial force, and the output of the light receiving element 9 is low (Low). ), The control means 20 controls the transistor 1
Turning 1 and 12 on, the rotary brush 4 is rotated in the front direction of the electric floor suction tool 1. Similarly, in FIG. 5 (c), the weight 7 comes between the light emitting element 8 and the light receiving element 9 due to the inertial force at the moment of changing the direction of the electric floor suction tool 1 from the rear direction to the front direction, and for the electric floor. The rotating brush 4 is rotated in the front direction of the suction tool 1. Further, as shown in FIG. 6B, when the electric floor suction tool 1 is raised in the air while the hand switch 15 is turned on, the auxiliary roller 19 is lowered, and the auxiliary switch 18 is turned off to control the control means 20. Stops the rotating brush 4.

As described above, according to the fourth embodiment of the present invention, the rotating brush 4 rotates in the direction opposite to the traveling direction of the electric floor suction tool 1, and the dust collection efficiency of the carpet 17 can be improved. Further, it is possible to ensure safety when the electric floor suction tool 1 is raised in the air.

(Fifth Embodiment) Next, a fifth embodiment of the present invention will be described with reference to FIGS. 8 (a) and (b), FIGS. 9 (a) and (b),
This will be described with reference to FIGS. 10, 11, and 12A to 12C.

As shown in FIG. 11, the electric floor suction tool 2
1 is a rotating brush 2 connected to a motor 22 by a belt 23
4 is provided, and the rotating brush 24 is driven by the electric motor 22. The direction sensors 25 and 26 detect the moving direction of the electric floor suction tool 21.

Further, as shown in FIGS. 8 (a) and 8 (b),
The direction sensors 25 and 26 include a rotatable shaft 27 that is vertically attached to the bottom surface of the electric floor suction tool 21, and an asymmetrical weight 28 connected to the shaft 27. Two pairs of light emitting elements 29, 3 are arranged in the traveling direction of the tool 21.
0 and the light receiving elements 31 and 32 are fixedly installed so as to sandwich the weight 28.

Further, as shown in FIG. 10, the control means 33
Inputs the outputs of the direction sensors 25 and 26 (outputs of the light receiving elements 31 and 32), and the output of the direction sensors 25 and 26 causes the rotary brush 2 to move in the same direction as the traveling direction of the electric floor suction tool 21.
The rotation direction of the electric motor 22 that drives the motor 4 is controlled. That is, the transistors 34 and 3 are controlled by the output of the control means 33.
When 5 is turned on, the electric motor 22 drives the rotating brush 24 in a direction to move the electric floor suction tool 21 in the forward direction, and when the transistors 36 and 37 are turned on, the electric motor 22 causes the electric floor suction tool 21 to move backward. The rotating brush 24 is driven in the moving direction. Further, when the two direction sensors 25 and 26 output the same signal, the control unit 33 stops the rotation of the rotary brush 24. The hand switch 38 turns the rotary brush 24 on and off.

Further, as shown in FIG. 9, a control plate 39, which is a target for the shaft 27, is provided on the shaft 27 in the same direction as the weight 28.
And a variable auxiliary roller 40 which is attached to the bottom surface of the electric floor suction tool 21 and is movable up and down.
And the auxiliary stopper 4 supported by the spring 41.
2 is adjacent to the control plate 39, and when the electric floor suction tool 21 is in the air, the variable auxiliary roller 40 is lowered downward, and at the same time, the auxiliary stopper 42 is also lowered downward.
Is pressed to make the weight 28 perpendicular to the traveling direction of the electric floor suction tool 21.

Reference numeral 43 in FIG. 11 is an electric floor suction tool 2
1 is an auxiliary roller provided. In the above configuration, FIG.
The operation will be described with reference to FIGS. 12 (a) and 12 (b) and FIGS. 12 (a) to 12 (c). First, the hand switch 38 is closed and the electric floor suction tool 21 is closed as shown in FIG. 6 (a). When placed on the carpet 17, the auxiliary roller 19 moves up and the auxiliary stopper 4
The control plate 39 is made free by raising 2 as well.
Then, when the electric floor suction tool 21 is moved forward on the carpet 17 as shown in FIG. 12A, the weight 28 rotates rearward due to the inertial force, so that the space between the light emitting element 30 and the light receiving element 32 is reduced. Come to As a result, the output of the light receiving element 32 is high (H
i), and the control means 33 controls the transistors 34 and 35.
Is turned on and the rotary brush 24 is rotated in the front direction of the electric floor suction tool 21. Next, as shown in FIG. 12B, at the moment when the electric floor suction tool 21 is turned from the front direction to the rear direction on the carpet 17, the electric floor suction tool 21 stops.
The inertial force separates the weight 28 from the light emitting element 30 and the light receiving element 32, and this time, the light emitting element 29 and the light receiving element 31.
Come in between. The output of the light receiving element 29 is high (H
i), the control means 33 controls the transistors 36 and 37.
Is turned on and the rotary brush 24 is rotated in the rearward direction of the electric floor suction tool 21. Similarly, in FIG. 12 (c), at the moment of changing the direction of the electric floor suction tool 21 from the rear direction to the front direction, the weight 28 comes between the light emitting element 30 and the light receiving element 32 due to the inertial force, and is used for the electric floor. The rotating brush 24 is rotated in the front direction of the suction tool 21. Further, as shown in FIG. 9 (b), the electric floor suction tool 21 is kept with the hand switch 15 turned on.
When the control roller 39 is raised in the air, the auxiliary roller 40 is lowered, and the auxiliary stopper 42 is also lowered to fix the control plate 39 perpendicularly to the traveling direction of the electric floor suction tool 21. , 32 become low, the control means 33 stops the rotary brush 24.

As described above, according to the fifth embodiment of the present invention, the rotating brush 24 rotates in the same direction as the traveling direction of the electric floor suction tool 21, and the operating force on the carpet 17 can be reduced, and Therefore, it is possible to secure safety when the electric floor suction tool 21 is raised to the air.

(Sixth Embodiment) Next, a sixth embodiment of the present invention will be described with reference to FIGS. 8 (a) and (b), FIGS. 9 (a) and (b),
This will be described with reference to FIGS. 10, 11, and 13A to 13C. The control means 33 in FIG. 10 drives the rotating brush 24 in the direction opposite to the traveling direction of the electric floor suction tool 21. The other structure is similar to that of the fifth embodiment.

The operation of the above structure will be described with reference to FIGS. 9A and 9B and FIGS. 13A to 13C.
First, the hand switch 38 is closed and the electric floor suction tool 21 is placed on the carpet 17 as shown in FIG.
9 goes up and the auxiliary stopper 42 also goes up to free the control plate 39. And in FIG.
When the electric floor suction tool 21 is moved forward on the carpet 17 as shown in (a), the weight 28 rotates rearward due to inertial force and comes between the light emitting element 30 and the light receiving element 32. As a result, the output of the light receiving element 32 becomes high (Hi), and the control means 33 turns on the transistors 36 and 37 to rotate the rotary brush 24 in the backward direction of the electric floor suction tool 21. Next, as shown in FIG. 13B, the electric floor suction tool 2
At the moment when 1 is turned from the front direction to the rear direction on the carpet 17, the electric floor suction tool 21 is stopped, and the weight 28 is separated from the light emitting element 30 and the light receiving element 32 by its inertial force, and this time, the light emitting element 29. And between the light receiving elements 31. Then, the output of the light receiving element 29 becomes high (Hi), and the control means 33 turns on the transistors 34 and 35 to rotate the rotary brush 24 in the forward direction of the electric floor suction tool 21. Similarly, in FIG. 13 (c), at the moment of changing the direction of the electric floor suction tool 21 from the rear direction to the front direction, the weight 28 comes between the light emitting element 30 and the light receiving element 32 due to the inertial force, and The rotating brush 24 is rotated in the rearward direction of the suction tool 21. Further, as shown in FIG. 9B, when the hand-operated switch 15 is kept on and the electric floor suction tool 21 is raised to the air, the auxiliary roller 40 is lowered and the auxiliary stopper 42 is also lowered. Electric floor suction tool 21
By fixing the light receiving elements 31 and 32 perpendicularly to the traveling direction of, the output becomes low.
The control means 33 stops the rotary brush 24.

As described above, according to the sixth embodiment of the present invention, the rotary brush 24 rotates in the direction opposite to the traveling direction of the electric floor suction tool 21, and the dust collection efficiency of the carpet 17 can be improved.
In addition, safety can be secured when the electric floor suction tool 21 is raised to the air.

[0050]

As is apparent from the above embodiments, according to the present invention, an electric floor suction tool equipped with a rotating brush driven by an electric motor, a manual switch for turning on and off the rotating brush, and Installed vertically on the electric floor suction tool 1
A rotatable shaft, an asymmetrical weight connected in the vertical direction of the shaft, a rotation range of the weight, and a pair of light emitting elements installed in one of the traveling directions of the electric floor suction tool And a light receiving element, and control means for inputting a signal from the light receiving element, wherein the control means drives the rotating brush in the same direction as the traveling direction of the electric floor suction tool by the signal of the light receiving element. Since the rotation direction of the electric motor is controlled, the rotation direction of the rotating brush of the electric floor suction tool is changed to the same direction as the traveling direction of the electric floor suction tool by the signal of the light receiving element, and the direction is changed for a moment. Since the changeover can be performed first, it is possible to predict what the user wants to do next and determine the rotation direction of the rotating brush in advance, thereby reducing the operating force.

Also, an electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a single rotary member installed vertically to the electric floor suction tool. A free shaft, an asymmetrical weight connected in the vertical direction of the shaft, and a pair of a light emitting element and a light receiving element sandwiching the rotation range of the weight and installed in one of the traveling directions of the electric floor suction tool. And a control means for inputting a signal from the light receiving element, the control means of a motor for driving the rotary brush in a direction opposite to a traveling direction of the electric floor suction tool by a signal of the light receiving element. Since the rotation direction is controlled, the rotation direction of the rotating brush of the electric floor suction device is switched to the direction opposite to the traveling direction of the electric floor suction device by the signal of the light receiving element, and immediately before the direction is changed. Can Kill For, though the user predicts whether then what you want to do, previously can determine the rotational direction of the rotary brush, can be improved dust collecting efficiency.

Also, an electric floor suction tool equipped with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a vertically movable movable roller installed as an auxiliary roller of the electric floor suction tool. Variable auxiliary roller of the mechanism, an auxiliary switch for turning on and off the rotary brush connected to the variable auxiliary roller, one rotatable shaft installed vertically to the electric floor suction tool, and the shaft. A non-symmetrical weight connected in the vertical direction, a pair of light-emitting element and light-receiving element sandwiching the rotation range of the weight, and installed in one of the traveling directions of the electric floor suction tool, and the light-receiving element from the light-receiving element. A control means for inputting a signal, wherein the control means controls the rotation direction of the electric motor for driving the rotary brush in the same direction as the traveling direction of the electric floor suction tool by the signal of the light receiving element. Therefore, when the electric floor suction tool is in the air, the auxiliary switch is turned off because the variable auxiliary roller moves downward in the electric floor suction tool, and the rotary brush manual switch is turned on. Also, the electric motor for rotating the electric floor suction tool in the same direction as the traveling direction is cut off, and safety can be ensured.

Further, an electric floor suction tool equipped with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a vertically movable movable roller installed as an auxiliary roller of the electric floor suction tool. Variable auxiliary roller of the mechanism, an auxiliary switch for turning on and off the rotary brush connected to the variable auxiliary roller, one rotatable shaft installed vertically to the electric floor suction tool, and the shaft. A non-symmetrical weight connected in the vertical direction, a pair of light-emitting element and light-receiving element sandwiching the rotation range of the weight, and installed in one of the traveling directions of the electric floor suction tool, and the light-receiving element from the light-receiving element. A control means for inputting a signal, wherein the control means controls a rotation direction of an electric motor for driving the rotary brush in a direction opposite to a traveling direction of the electric floor suction tool by a signal of the light receiving element. Therefore, when the electric floor suction tool is in the air, the auxiliary switch is turned off because the variable auxiliary roller moves downward in the electric floor suction tool, and the rotary brush manual switch is turned on. Also, the electric motor for rotating the electric floor suction tool in the direction opposite to the traveling direction is cut off, and safety can be ensured.

Further, an electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on / off the rotary brush, and a single rotary member installed vertically to the electric floor suction tool. A flexible shaft, a pair of control plates symmetrical in the vertical direction of the shaft, and a non-symmetrical weight are connected to each other, and the control plate is vertically movable installed as an auxiliary roller of the electric floor suction tool. A variable auxiliary roller of the mechanism and an auxiliary stopper for stopping or canceling the stop of the control plate connected to the variable auxiliary roller are adjacent to each other, and the rotation range of the weight is sandwiched, and the electric floor suction device It is provided with two pairs of light emitting element and light receiving element installed on the axis of the traveling direction, and control means for inputting a signal from the light receiving element, wherein the control means operates the motor by the signal of the light receiving element. Since the rotation direction of the electric motor for driving the rotary brush is controlled in the same direction as the traveling direction of the floor suction tool, the rotation direction of the rotary brush of the electric floor suction tool is electrically driven by the signals of the two light receiving elements. Since it is possible to switch in the same direction as the moving direction of the suction tool for floors, and at the moment when it changes direction, it predicts what the user wants to do next and decides the rotating direction of the rotating brush in advance. It is possible to reduce the operation force. Further, when the electric floor suction tool is in the air, the variable auxiliary roller moves downward in the electric floor suction tool, so that the auxiliary stopper presses the control plate, and the weights include both pairs of the light emitting element and the light receiving element. Even if the manual switch of the rotating brush is turned on, the electric motor for rotating in the same direction as the advancing direction of the electric floor suction tool is cut off and there is no mechanical contact, so high reliability,
It ensures safety.

Further, an electric floor suction tool equipped with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a single rotary member installed vertically to the electric floor suction tool. A flexible shaft, a pair of control plates symmetrical in the vertical direction of the shaft, and a non-symmetrical weight are connected to each other, and the control plate is vertically movable installed as an auxiliary roller of the electric floor suction tool. A variable auxiliary roller of the mechanism and an auxiliary stopper for stopping or canceling the stop of the control plate connected to the variable auxiliary roller are adjacent to each other, and the rotation range of the weight is sandwiched, and the electric floor suction device It is provided with two pairs of light emitting element and light receiving element installed on the axis of the traveling direction, and control means for inputting a signal from the light receiving element, wherein the control means operates the motor by the signal of the light receiving element. Since the rotation direction of the electric motor for driving the rotary brush is controlled in the direction opposite to the traveling direction of the floor suction tool, the rotation direction of the rotary brush of the electric floor suction tool is electrically driven by the signals of the two light receiving elements. Since it is possible to switch to the opposite direction to the advancing direction of the floor type suction tool, and at the moment when the direction is changed, it predicts what the user wants to do next and decides the rotating direction of the rotating brush in advance. It is possible to improve the dust collection efficiency. Further, when the electric floor suction tool is in the air, the variable auxiliary roller moves downward in the electric floor suction tool, so that the auxiliary stopper presses the control plate, and the weights include both pairs of the light emitting element and the light receiving element. Even if the rotary brush manual switch is turned on, the motor for rotating the electric floor suction tool in the direction opposite to the traveling direction is cut off, and there is no mechanical contact, so high reliability and safety are ensured. To secure.

[Brief description of drawings]

FIG. 1A is a structural front view of a direction sensor unit according to first, second, third, and fourth embodiments of the present invention. FIG.

FIG. 2 is a control circuit diagram of first and second embodiments of the present invention.

FIG. 3 is a structural diagram of an electric floor suction tool according to first and second embodiments of the present invention.

4A is an operation diagram of first and third embodiments of the present invention. FIG. 4B is an operation diagram of first and third embodiments of the present invention. FIG. 4C is a first embodiment of the present invention. Operation diagram

5A is an operation diagram of second and fourth embodiments of the present invention. FIG. 5B is an operation diagram of second and fourth embodiments of the present invention. FIG. 5C is a second and fourth embodiments of the present invention. Operation diagram

6A is an operation diagram of an auxiliary switch according to third and fourth embodiments of the present invention. FIG. 6B is an operation diagram of auxiliary switches according to the third and fourth embodiments of the present invention. FIG. 6C is a third embodiment of the present invention. Operation diagram of the auxiliary switch of the fourth embodiment

FIG. 7 is a control circuit diagram of third and fourth embodiments of the present invention.

FIG. 8 (a) is a front view of the structure of a direction sensor section according to fifth and sixth embodiments of the present invention.

9 (a) is an operation diagram of an auxiliary stopper according to fifth and sixth embodiments of the present invention. FIG. 9 (b) is an operation diagram of auxiliary stoppers according to fifth and sixth embodiments of the present invention.

FIG. 10 is a control circuit diagram of fifth and sixth embodiments of the present invention.

FIG. 11 is a structural diagram of an electric floor suction tool according to fifth and sixth embodiments of the present invention.

FIG. 12 (a) is an operation diagram of the fifth embodiment of the present invention (b) is an operation diagram of the fifth embodiment of the present invention (c) is an operation diagram of the fifth embodiment of the present invention

13A is an operation diagram of a sixth embodiment of the present invention, FIG. 13B is an operation diagram of a sixth embodiment of the present invention, and FIG. 13C is an operation diagram of a sixth embodiment of the present invention. Operational diagram of the sixth embodiment of the invention

FIG. 14 is an external view of a conventional electric vacuum cleaner.

FIG. 15 is a control circuit diagram of a conventional vacuum cleaner.

[Explanation of symbols]

 1, 21 Electric floor suction tool 2, 22 Electric motor 4, 24 Rotating brush 6, 27 Shaft 7, 28 Weight 8, 29, 30 Light emitting element 9, 31, 32 Light receiving element 10, 20, 33 Control means 18 Auxiliary switch 19, 40 Variable auxiliary roller 39 Control plate 42 Auxiliary stopper

Claims (6)

[Claims] 1. An electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a single rotary installed vertically to the electric floor suction tool. A free shaft, an asymmetrical weight connected in the vertical direction of the shaft, and a pair of a light emitting element and a light receiving element sandwiching the rotation range of the weight and installed in one of the traveling directions of the electric floor suction tool. And a control means for inputting a signal from the light receiving element, the control means of the electric motor for driving the rotary brush in the same direction as the traveling direction of the electric floor suction tool by the signal of the light receiving element. An electric vacuum cleaner that controls the direction of rotation. 2. An electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a single rotary installed vertically to the electric floor suction tool. A free shaft, an asymmetrical weight connected in the vertical direction of the shaft, and a pair of a light emitting element and a light receiving element sandwiching the rotation range of the weight and installed in one of the traveling directions of the electric floor suction tool. And a control means for inputting a signal from the light receiving element, the control means of a motor for driving the rotary brush in a direction opposite to a traveling direction of the electric floor suction tool by a signal of the light receiving element. An electric vacuum cleaner that controls the direction of rotation. 3. An electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a vertically movable movable roller installed as an auxiliary roller of the electric floor suction tool. A variable auxiliary roller with a mechanism to
Turning on the rotating brush connected to the variable auxiliary roller,
An auxiliary switch that is turned off, a rotatable shaft that is vertically installed on the electric floor suction tool, an asymmetric weight that is vertically connected to the shaft, and a rotation range of the weight, and A pair of light emitting element and a light receiving element installed in one of the traveling direction of the electric floor suction tool, and a control means for inputting a signal from the light receiving element, the control means, depending on the signal of the light receiving element. An electric vacuum cleaner configured to control a rotation direction of an electric motor that drives the rotary brush in the same direction as the traveling direction of the electric floor suction tool. 4. An electric floor suction tool equipped with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a vertically movable set as an auxiliary roller of the electric floor suction tool. A variable auxiliary roller with a mechanism to
Turning on the rotating brush connected to the variable auxiliary roller,
An auxiliary switch that is turned off, a rotatable shaft that is vertically installed on the electric floor suction tool, an asymmetric weight that is vertically connected to the shaft, and a rotation range of the weight, and A pair of light emitting element and a light receiving element installed in one of the traveling direction of the electric floor suction tool, and a control means for inputting a signal from the light receiving element, the control means, depending on the signal of the light receiving element. An electric vacuum cleaner configured to control a rotation direction of an electric motor that drives the rotary brush in a direction opposite to a traveling direction of the electric floor suction tool. 5. An electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a single rotary installed vertically to the electric floor suction tool. A flexible shaft, a pair of control plates symmetrical in the vertical direction of the shaft, and a non-symmetrical weight are connected to each other, and the control plate is vertically movable installed as an auxiliary roller of the electric floor suction tool. A variable auxiliary roller of the mechanism and an auxiliary stopper for stopping or canceling the stop of the control plate connected to the variable auxiliary roller are adjacent to each other, and the rotation range of the weight is sandwiched, and the electric floor suction device It is provided with two pairs of light emitting element and light receiving element installed on the axis of the traveling direction, and control means for inputting a signal from the light receiving element, wherein the control means operates the motor by the signal of the light receiving element. For floors An electric vacuum cleaner configured to control the rotation direction of an electric motor that drives the rotary brush in the same direction as the suction tool travels. 6. An electric floor suction tool provided with a rotary brush driven by an electric motor, a manual switch for turning on and off the rotary brush, and a single rotary installed vertically to the electric floor suction tool. A flexible shaft, a pair of control plates symmetrical in the vertical direction of the shaft, and a non-symmetrical weight are connected to each other, and the control plate is vertically movable installed as an auxiliary roller of the electric floor suction tool. A variable auxiliary roller of the mechanism and an auxiliary stopper for stopping or canceling the stop of the control plate connected to the variable auxiliary roller are adjacent to each other, and the rotation range of the weight is sandwiched, and the electric floor suction device It is provided with two pairs of light emitting element and light receiving element installed on the axis of the traveling direction, and control means for inputting a signal from the light receiving element, wherein the control means operates the motor by the signal of the light receiving element. For floors An electric vacuum cleaner configured to control a rotation direction of an electric motor that drives the rotary brush in a direction opposite to a traveling direction of a suction tool.