JPH06205732A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To automatically save electric power by holding the handy operation section of a vacuum cleaner having a floor suction tool, and controlling the rotation of a suction rotary brush in response to the state that the light of a light emitting element is detected by a light receiving element. CONSTITUTION:A grip sensor constituted of a light emitting element 2 and a light receiving element 3 is provided at a grip portion inside the handle section 1 of a handy operation section 103 fitted between a vacuum cleaner main body and an extension pipe. The handle section is gripped to advance or retreat the vacuum cleaner main body and the extension pipe. When fingers are brought into contact with the handle section 1 to surely grip it, the grip sensor is excited to fully rotate a rotary brush. When the grip is insufficient, the revolving speed is reduced. When the fingers are removed from the handle section 1, the rotation is stopped. The rotation of the rotary brush is controlled, and the power consumption is saved.

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 having a floor suction tool provided with a rotary brush for household and industrial purposes.

[0002]

2. Description of the Related Art In recent years, as vacuum cleaners have diversified to be cleaned with carpets and the like, the floor suction tool of the vacuum cleaner has a rotating brush that is rotated by a motor, and more and more vacuum cleaners suck up dust on the floor. Is coming.

Conventionally, in this type of floor suction tool, the rotary brush is rotated or stopped depending on the type of the surface to be cleaned, and a specific means for switching the same is manual operation such as opening and closing a switch. Most were things.

FIG. 32 shows an electric vacuum cleaner of a conventional example, 101 is a cleaner body, 102 is a hose, 103 is a hand operation part, 10
Reference numeral 4 denotes an extension tube. The floor suction tool 105 has a rotating brush (not shown), which is rotated by a dedicated motor (not shown).

ON / O of the rotating brush motor
The FF is generally performed by a switch provided in the hand operation unit 103, and there is also a switch that directly turns on / off the power of the motor, or if a switch is used to turn on / off the power of the motor. There is also one in which the switch is turned off and the control switch is operated.

[0006]

However, in the above-mentioned conventional technique, the user of the electric vacuum cleaner (hereinafter, referred to as a user) operates the rotary brush by operating the switch or the like, and then again operates the switch or the like. The rotating brush does not stop unless you operate. Originally, after using a vacuum cleaner, the switch is turned off and stopped, but if you forget to turn it off, you will not notice that the rotating brush is rotating and you will touch the rotating brush and damage your fingers etc. There was a risk.

The present invention solves the above problems,
Make sure that the rotating brush makes the necessary rotation only while the user is operating it, to further improve safety so as not to injure your finger etc. if you touch the rotating brush, and to reduce power consumption. Has an aim.

[0008]

[Means for Solving the Problems] A first means of the present invention for achieving the above object has a grip sensor in a hand operation part of an electric vacuum cleaner, and a floor suction tool according to an output of the grip sensor. It has a control means for controlling the rotation and stop of the motor for the rotating brush, and the grip sensor is composed of a light emitting element, a light receiving element, and a controller in parallel.

The second means has a grip sensor in the hand operation part of the electric vacuum cleaner, and means for controlling the rotation speed of the motor for the rotary brush of the floor suction tool according to the output of the grip sensor. The grip sensor is composed of a light emitting element, a light receiving element, and a controller arranged in parallel.

A third means is a control which has a plurality of grip sensors in a hand operation section of the electric vacuum cleaner and controls rotation and stop of a motor for a rotary brush of a floor suction tool according to outputs of the grip sensors. The grip sensor includes a light emitting element, a light receiving element, and a controller that are arranged in parallel as the grip sensor.

A fourth means has a grip sensor in a hand operation part of the vacuum cleaner, and rotates a motor for a rotary brush of a floor suction tool according to an output of the grip sensor.
The grip sensor includes a control unit for controlling the stop, and the grip sensor includes a light emitting element, a light receiving element, a control unit, and a plurality of light guiding units.

A fifth means has a grip sensor in a hand operation part of the vacuum cleaner, and rotates a motor for a rotating brush of a floor suction tool according to an output of the grip sensor.
It has a control means for controlling the stop and a timer means, and is composed of a light emitting element, a light receiving element and a control section arranged in parallel as the grip sensor.

A sixth means has a grip sensor in a hand operation part of the electric vacuum cleaner, and rotates a motor for a rotary brush of a floor suction tool according to an output of the grip sensor.
It has a control means for controlling the stop and a reset means, and is composed of a light emitting element, a light receiving element and a control section arranged in parallel as the grip sensor.

A seventh means is to have a grip sensor in a hand operation part of the vacuum cleaner, and to rotate a motor for a rotary brush of a floor suction tool according to an output of the grip sensor.
It has a control means for controlling the stop and a control means for changing the suction force of the fan motor, and the grip sensor is composed of a light emitting element, a light receiving element and a control section arranged in parallel.

Eighth means has a grip sensor in a hand operation part of the vacuum cleaner, and rotates a motor for a rotary brush of a floor suction tool according to an output of the grip sensor.
It has a control means for controlling the stop, and is composed of a light emitting element, a light receiving element and a control section which face each other as the grip sensor.

The ninth means has a grip sensor in the hand operation part of the electric vacuum cleaner, and means for controlling the rotation speed of the motor for the rotary brush of the floor suction tool according to the output of the grip sensor. The grip sensor is composed of a light emitting element, a light receiving element and a control section which face each other.

A tenth means has a plurality of grip sensors in a hand operation section of the electric vacuum cleaner, and controls rotation and stop of a motor for a rotary brush of a floor suction tool according to outputs of the grip sensors. The grip sensor includes a light emitting element, a light receiving element and a control section which face each other.

An eleventh means has a grip sensor in which a light emitting element and a light receiving element are arranged so as to face each other near the tip of the handle portion of the hand operation portion of the vacuum cleaner and at the base portion of the handle portion. It has a control means for controlling the rotation and stop of the motor for the rotating brush of the floor suction tool according to the output of.

A twelfth means has a grip sensor in the hand operation part of the electric vacuum cleaner, and rotates a motor for a rotating brush of the floor suction tool according to the output of the grip sensor.
It has a control means for controlling the stop and a timer means, and is composed of a light emitting element, a light receiving element and a control section facing each other as the grip sensor.

A thirteenth means has a grip sensor in a hand operation part of the vacuum cleaner, and a control means for controlling rotation and stop of a motor for a rotary brush of a floor suction tool according to an output of the grip sensor, It has a reset means, and is composed of a light emitting element, a light receiving element and a control section which face each other as the grip sensor.

A fourteenth means has a grip sensor in the hand operation part of the vacuum cleaner, and a control means for controlling the rotation and stop of the motor for the rotary brush of the floor suction tool according to the output of the grip sensor. It has a control means for changing the suction force of the fan motor, and is composed of a light emitting element, a light receiving element and a control section facing each other as the grip sensor.

[0022]

In the above first means of the present invention, the grip sensor having the light emitting element and the light receiving element detects whether or not the user is gripping the operating portion at hand. Since the rotary brush of the tool can be rotated, the rotation of the rotary brush is automatically stopped when the tool is not in use, so that the finger or the like is not damaged even if the rotary brush is accidentally touched.

In the second means, a grip sensor having a light emitting element and a light receiving element detects whether or not the hand operation section is grasped, and when the hand operation section is grasped, the rotary brush is operated. By controlling the rotation speed to a high speed and controlling the rotation brush to a low rotation when the hand operation part is not grasped, it is possible to improve safety without damaging fingers etc. even if the rotation brush is accidentally touched. In addition, since it is possible to recognize that the rotating brush can rotate originally, it is possible to call attention so as not to touch the floor suction tool, and the rotating brush will rotate when the hand operation unit is gripped again. It is possible to increase the safety when it rises.

In the third means, it is detected by a plurality of grip sensors having a light emitting element and a light receiving element whether or not the user is gripping the operating portion at hand, so that the floor suction device can be operated only when operating. Since the rotating brush can be rotated, the rotation of the rotating brush is automatically stopped when not in use, so even if the rotating brush is accidentally touched, the fingers etc. are not damaged and multiple grip sensors are provided. This widens the detection range that is not restricted by the grip position.

In the fourth means, the light from the light emitting element of the grip sensor having the light emitting element and the light receiving element detects whether the user holds or does not hold the hand operating section through the light guide section. Since the rotating brush of the floor suction tool can be rotated only when it is operated, the rotation of the rotating brush is automatically stopped when not in use, so that even if the rotating brush is accidentally touched, the finger or the like will be damaged. It is also possible to widen the detection range.

In the fifth means, a grip sensor having a light emitting element and a light receiving element is used to detect whether or not the user is gripping the operating portion at hand, and after a lapse of a predetermined time after a change in the output of the grip sensor. By having a timer device that stops and starts the motor for the rotating brush, the rotation of the rotating brush does not stop unexpectedly or start, and it is possible to control according to the user's actual feeling and operate it. Only by rotating the rotary brush of the floor suction tool and automatically stopping the rotation of the rotary brush when not in use, even if the rotary brush is accidentally touched, the finger or the like is not damaged.

In the sixth means, the start switch of the rotary brush of the floor suction tool is pressed while the grip sensor having the light emitting element and the light receiving element detects that the hand operation section is being held. Only when the rotating brush is allowed to rotate, even if the rotating brush is accidentally touched, it is possible to improve safety without damaging a finger or the like.

In the seventh means, not only the rotation control of the rotary brush of the floor suction tool according to the signal of the grip sensor having the light emitting element and the light receiving element, but also when the hand operation section is gripped by the grip sensor. By controlling the fan motor of the vacuum cleaner body to a high rotation speed and controlling it to a low rotation speed when not gripped, it is possible to suppress power consumption when not in use.

In the eighth means, the grip sensor having the light emitting element and the light receiving element detects whether or not the user is gripping the hand operation part, so that the rotary brush of the floor suction tool is only operated. Since it can be rotated, the rotation of the rotating brush is automatically stopped when not in use, so that the finger or the like is not damaged even if the rotating brush is accidentally touched.

In the ninth means, a grip sensor having a light emitting element and a light receiving element detects whether or not the hand operation section is grasped, and when the hand operation section is grasped, the rotary brush is operated. By controlling the rotation speed to a high speed and controlling the rotation brush to a low rotation when the hand operation part is not grasped, it is possible to improve safety without damaging fingers etc. even if the rotation brush is accidentally touched. In addition, since it is possible to recognize that the rotating brush can rotate originally, it is possible to call attention so as not to touch the floor suction tool, and the rotating brush will rotate when the hand operation unit is gripped again. It is possible to increase the safety when it rises.

In the tenth means, it is detected by a plurality of grip sensors having a light emitting element and a light receiving element whether or not the user is gripping the operating portion at hand, so that the floor suction device can be operated only when operating. Since the rotating brush can be rotated, the rotation of the rotating brush is automatically stopped when not in use, so even if the rotating brush is accidentally touched, the fingers etc. are not damaged and multiple grip sensors are provided. This widens the detection range that is not restricted by the grip position.

In the eleventh means, the light from the light emitting element of the grip sensor having the light emitting element and the light receiving element at the tip portion and the root portion of the handle portion of the hand operation portion reaches the light receiving element in parallel with the handle portion. By doing so, it detects whether you are grasping the handle part or not, so you can widen the detection range of the sensor and rotate the rotating brush of the floor suction tool only when operating, so use If not, the rotation of the rotary brush is automatically stopped, so that even if the rotary brush is accidentally touched, the finger or the like is not damaged and the detection range can be widened.

In the twelfth means, a grip sensor having a light emitting element and a light receiving element is used to detect whether or not the user is gripping the hand operation section, and after a predetermined time elapses after a change in the output of the grip sensor. By having a timer device that stops and starts the motor for the rotating brush, the rotation of the rotating brush does not stop unexpectedly or start, and it is possible to control according to the user's actual feeling and operate it. Only by rotating the rotary brush of the floor suction tool and automatically stopping the rotation of the rotary brush when not in use, even if the rotary brush is accidentally touched, the finger or the like is not damaged.

In the thirteenth means, when the grip sensor having the light emitting element and the light receiving element detects that the hand operation section is being held, the start switch of the rotary brush of the floor suction tool is pressed. Only when the rotating brush is allowed to rotate, even if the rotating brush is accidentally touched, it is possible to improve safety without damaging a finger or the like.

In the fourteenth means, not only the rotation control of the rotary brush of the floor suction tool according to the signal of the grip sensor having the light emitting element and the light receiving element, but also when the hand operation portion is gripped by the grip sensor. By controlling the fan motor of the vacuum cleaner body to a high rotation speed and controlling it to a low rotation speed when not gripped, it is possible to suppress power consumption when not in use.

[0036]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A first embodiment of the present invention will be described with reference to the drawings. Hereinafter, components having the same function will be denoted by the same reference symbols, and description thereof will be omitted.

In FIG. 1, the hand-held operation portion 103 has a handle portion 1 and constitutes a grip sensor.

In the present invention, the grip sensor is composed of the light emitting element 2 and the light receiving element 3, and when the grip sensor is arranged as shown in FIG. 1, the light from the light emitting element 2 is normally indicated by an arrow (a) in the figure. Thus, it does not reach the light receiving element 3.

However, as shown in FIG. 2, when the handle portion 1 is gripped because a vacuum cleaner is used, the light is reflected by the hand and the light emitting element 3 is exposed to the light. It can detect whether or not.

In this embodiment, the light emitting element 2 is a light emitting diode, and the light receiving element 3 is a phototransistor. (FIG. 3) When the handle portion 1 is not gripped, the light from the light emitting element 2 does not reach the light receiving element 3, and the light receiving element 3 is off, but when the handle portion 1 is gripped, the light is emitted by the user. The light is reflected by the hand and reaches the light receiving element, and the light receiving element 3 is turned on. Therefore, the voltage at the point A changes depending on whether or not the handle portion 1 is grasped, and the power source voltage 9 is divided by the resistors 7 and 8 in the comparator 6 into B.
The output of the comparator 6 changes compared with the voltage at the point. The output of the comparator 6 turns on and off the transistor 11, turning on and off the optical trigger element 12 connected to the collector.
F At this time, if the switch 15 is closed, the rotation and stop of the rotary brush motor 14 can be controlled by the optical trigger element 12 and the bidirectional thyristor 13.

With this construction, when the handle 15 is held, the rotary brush of the floor suction tool is rotated when the switch 15 is closed, and when the handle 1 is released, the rotation of the rotary brush is automatically stopped. To do.

In the figure, only the circuit relating to the motor of the rotary brush of the floor suction tool is shown, and the other circuits are omitted. The switch 15 is a main switch for turning on and off the rotary brush of the floor suction tool,
Reference numeral 5 is a capacitor for removing minute fluctuations at the point A.

Next, a second embodiment will be described with reference to the drawings. FIG. 4 shows the control circuit of this embodiment. In the figure, the grip sensor 4 may have the same structure as the grip sensor 4 in the first embodiment, and the mounting structure may be the same as that in FIG.

Reference numeral 19 is a control means for the rotating brush, which operates as follows. A switch 20 is operated by the user, and is controlled by the control means so as not to rotate the rotary brush when it is open.

When the grip sensor 4 detects that the handle portion 1 is gripped while the switch 20 is closed, a signal is sent from the control means 19 to the bidirectional thyristor 13 and the motor 14 rotates at high speed. A signal is sent to the bidirectional thyristor 13 to rotate at a low speed and rotate at a low speed when not gripped.

FIG. 5 is a diagram showing this, and when the handle portion is grasped, as indicated by a point 22 at 4500r.
High speed of / min, 2 when not gripped
It is controlled to the low rotation of 1000 r / min shown in 2 '.

In this embodiment, the rotation speed control method is the rotation speed control method using the bidirectional thyristor.
It goes without saying that the control may be performed using other methods.

Further, in FIG. 5, the high rotation speed and the low rotation speed are set to 4500 and 1000 r / min, respectively, but other values may be set.

Next, a third embodiment will be described with reference to the drawings. In this embodiment, a plurality of grip sensors will be described as two sets of grip sensors.

FIG. 6 is a block diagram of the hand-operated portion of the electric vacuum cleaner of the present embodiment, in which the handle portion 1, 2, 2'and 3, are provided.
3'includes two sets of a light emitting element and a light receiving element. FIG. 7 is a circuit configuration diagram of this embodiment. The circuit configurations of the grip sensor units 4 and 4'are the same as those of 4 in FIG. 3, the same operation as in the first invention is performed, and 22 is an OR circuit. .

In this structure, the handle 1 is gripped and
Alternatively, when the light emitted from the light emitting element of either one of the grip sensors 21 reaches the light receiving element, the transistor 11 of FIG. 7 is turned on, and the rotary brush motor 14 of the floor suction tool is the same as that of the first embodiment of the invention. Do the same.

When the handle portion 1 is gripped by the hand shown at 25 in FIG. 6, the light from the light emitting element 2 of the grip sensor 4 reaches the light receiving element 3, so that the transistor 11 in FIG.
When the handle portion 1 is gripped at the position of the hand shown in FIG. 6 (FIG. 6), the transistor 11 is also turned on by the grip sensor 4 ′.
Therefore, the rotating brush can be rotated regardless of the position where the grip portion 1 is gripped.

In this embodiment, the grip sensor is set to 2
Although it has been described as a set, it may be configured as three sets or four sets. Generally, the larger the number, the wider the range in which the hand can be detected.

Next, a fourth embodiment will be described with reference to the drawings. The circuit configuration of the grip sensor according to the present invention may be the same as that of the first embodiment shown in FIG.
The light emitting element 2 and the light receiving element 3 are arranged as shown in FIG. 8, and the light guide portions 60 and 61 are arranged inside the handle portion 1 from the tip of the handle portion 1 to the base.

The light emitted from the light emitting element 2 (FIG. 8 (A)) enters from the surface of the light guide portion 60 indicated by 62 and radiates from the surface of 63. The light radiated from the surface 63 is reflected by the user's hand, and the reflected light is condensed on the surface 65 of the light guide portion 61 (FIG. (C)) and is received from the surface 67 of the light guide portion. The element 3 is reached ((B) in the figure).

When the light guide section 60 is constructed as shown in FIG. 9, light is radiated from each surface shown by 63 in the figure due to diffusion of light. In the figure, the inside of each surface shown by 64 can be made to be a mirror surface to increase the intensity of light from the surface of 63, and the light guide portions 60 and 61 are made of a transparent material such as glass or resin. It can be easily realized.

In this embodiment, the light emitting element and the light receiving element are arranged at the base of the handle portion 1. However, the light emitting element and the light receiving element are respectively provided at the tip of the handle portion 1 (see FIG. 8A).
May be placed on the right side.

Next, a fifth embodiment will be described. FIG. 10 is a circuit configuration diagram of one embodiment of the present invention, and the grip sensor 4 may have the same configuration as that of the first invention.

FIG. 11 shows changes in voltage at points C and D in FIG. According to the first aspect of the present invention, the voltage at the point C becomes the H level when the handle portion is grasped. Therefore, during the periods E, F, G, and I in FIG. 11, it is shown that the steering wheel is held.

In the present invention, the timer circuit 29 is used to send a signal to the trigger circuit 30 by adding a predetermined delay time to the change in the output of the grip sensor.

When the voltage at the point C changes as shown in FIG. 11, the voltage at the output point D of the timer circuit 29 changes with a delay of the time T. If T> T1 and T> T2, the FGs in FIG.
The voltage at the point D does not change even if it goes to L level between GIs.

As a result, even if the handle is momentarily released while the vacuum cleaner is being used, the rotation of the rotary brush of the floor suction tool does not stop within the time T.

Next, a sixth embodiment will be described. FIG. 12 is a circuit configuration diagram of this embodiment. The grip sensor 4 may be the same as that of the first invention and the fourth invention, and a plurality of grip sensors may be used as in the third invention. Reference numeral 31 is a rotary brush control means, which controls the bidirectional thyristor 13 by the outputs of the switch 32 and the grip sensor 4 to control the rotation of the rotary brush motor 14. The rotating brush control means 31 can be easily realized by using a microcomputer or the like.

The operation of the rotary brush control means 31 is shown in the flow chart of FIG. 13, and according to the chart, the handle portion 1 constituting the grip sensor 4 (see FIG. 1).
The rotary brush of the floor suction tool rotates when the operator holds the switch and the switch 32 is pressed, and when the handle 1 is released, the rotary brush does not press the switch 32 and the rotary brush stops.

In this embodiment, the switch 32 is configured to rotate or stop the rotary brush each time it is pressed, but other methods such as providing two switches for starting and stopping may be used.

Next, the embodiment shown in FIG. 7 will be described. In FIG. 14, the grip sensor 4 may be the same as in the first and fourth inventions, and the rotary brush control means 38 is the second, fifth, and sixth inventions.
The switch 39 may be the same as those switches.

33 is a fan motor control means, which is a fan motor 37 in the cleaner body 101 (see FIG. 16).
The switches 34 and 35 are for selecting the operation, stop, and suction force of the fan motor 37.

With this configuration, when the handle portion 1 (see FIG. 1) is gripped, the suction force K becomes as shown at 40 in FIG. 15, and when it is not gripped, it becomes 41, and the suction force M becomes Become. (K> M) When the suction force is set to 42 by the switch 34, it is N when the handle is not gripped and L when the grip is gripped.

In this embodiment, no sensor other than the grip sensor is used, but it may be combined with another sensor. The number of rotations shown in FIG. 16 can be set arbitrarily, and when the handle portion is not gripped. The fan motor may be stopped, or the timer circuit may be used as in the fifth invention.

An embodiment of the eighth invention will be described with reference to the drawings. In FIG. 16, the hand-side operation unit 103 has the handle unit 1 and constitutes a grip sensor.

In the present invention, the grip sensor is constructed by using the light emitting element 202 and the light receiving element 203. By arranging as shown in FIG. 16, the light from the normal light emitting element 202 is normally received by the light receiving element as shown by the arrow in FIG. It reaches 203.

Therefore, as shown in FIG. 17, when the handle portion 1 is gripped to use the vacuum cleaner, the light is blocked by the hand,
Since the light emitting element 203 is not exposed to light, it can be detected as a grip sensor whether or not the handle is gripped.

In this embodiment, the light emitting element 202 is a light emitting diode, and the light receiving element 203 is a phototransistor.

When the handle portion 1 is not gripped, light reaches the light receiving element 203 from the light emitting element 202 and the light receiving element 203 is turned on, but when the handle portion 1 is gripped, the light receiving element 203 is turned off. Therefore, the voltage at the point A changes depending on whether or not the handle portion 1 is gripped, and the output of the comparator 206 changes compared with the voltage at the point B obtained by dividing the power supply voltage 209 by the resistors 207 and 208. (Refer to FIG. 18) The output of the comparator 206 causes the transistor 211 to turn on and off.
F to turn off the optical trigger element 212 connected to the collector.
N, turn off. At this time, if the switch 215 is closed, the optical trigger element 212 and the bidirectional thyristor 21 are
3 can control the rotation and stop of the rotary brush motor 14.

With this configuration, if the handle portion 1 is gripped with the switch 215 closed, the rotary brush of the floor suction tool rotates, and with the handle portion 1 in place, the rotation of the rotary brush automatically stops. To do.

In the figure, only the circuit relating to the motor for the rotary brush of the floor suction tool is shown, and the other circuits are omitted. Further, the switch 215 is a main switch for turning on and off the rotary brush of the floor suction tool, and 205 is a capacitor for removing minute fluctuations at the point A.

Although the light emitting element is provided on the handle portion and the light receiving element is provided on the opposite side in the present embodiment, conversely, the light receiving element may be provided on the handle portion and the light emitting element may be provided on the opposite side.

Next, a ninth embodiment will be described with reference to the drawings. FIG. 19 shows a control circuit of this embodiment. In the figure, the grip sensor 204 may have the same configuration as the grip sensor 204 in the eighth embodiment, and the mounting configuration may be the same as that in FIG. 16, so description thereof will be omitted.

Reference numeral 219 denotes a rotating brush control means, which operates as follows. A switch 220 is operated by the user by the switch, and is controlled by the control means so as not to rotate the rotary brush when it is opened.

When the grip sensor 204 detects that the handle portion 1 is being gripped while the switch 220 is closed, a signal is sent from the control means 219 to the bidirectional thyristor 213 and the motor 14 rotates at high speed. The signal is sent to the bidirectional thyristor 213 to rotate at a low speed and rotate at a low speed when not gripped.

FIG. 20 is a diagram showing this. When the handle portion is gripped, the rotating brush has a high rotation speed of 4500 r / min as indicated by a point 222, and when it is not gripped, the rotating brush has a rotation speed of 1000 r shown in 222 '. It is controlled to a low rotation of / min.

In this embodiment, the rotation speed control method is the rotation speed control method using the bidirectional thyristor.
It goes without saying that the control may be performed using other methods.

Further, in FIG. 20, the high rotation speed and the low rotation speed are set to 4500 and 1000 r / min, respectively, but other values may be set.

Next, a tenth embodiment will be described with reference to the drawings. In this embodiment, a plurality of grip sensors will be described as two sets of grip sensors.

FIG. 21 is a block diagram of the hand-held operating portion of the electric vacuum cleaner of this embodiment.
And 203 and 203 ', two sets of a light receiving element and a light emitting element are formed.

FIG. 22 is a circuit configuration diagram of this embodiment. The circuit configuration of the grip sensor portions 204 and 204 'is shown in FIG.
204, which is the same as the eighth invention,
22 is an OR circuit.

In this structure, the handle 1 is gripped and
When the light of either the grip sensor 4 or 204 'is blocked, the transistor 211 of FIG. 22 is turned on,
The rotary brush motor 14 of the floor suction tool operates in the same manner as in the eighth embodiment of the invention.

The handle portion 1 with the hand shown at 225 in FIG.
22 grips the grip sensor 204, so that the transistor 211 of FIG. 22 is turned on, and when the handle portion 1 is gripped at the position of the hand shown at 226, the grip sensor 20 is turned on.
Similarly, the transistor 211 is turned on by 4 ',
The rotating brush can be rotated regardless of the position where the grip portion 1 is gripped.

In this embodiment, the grip sensor is 2
Although described as a set, the number of sets may be three or four. Generally, the larger the number, the wider the range in which the hand can be detected.

Next, an eleventh embodiment will be described with reference to the drawings. The circuit configuration of the grip sensor in the present invention may be the same as that of the embodiment of the eighth invention shown in FIG. 18, but the light emitting element 202 and the light receiving element 203 are arranged as in the external configuration diagram shown in FIG.

That is, the light emitted from the light emitting element 202 provided at the end of the handle portion 1 travels along the handle portion 1,
It is configured to reach the light receiving element 203 at the opposite end of the handle portion 1. When the handle portion 1 is gripped by the hand 228 as shown in FIG. 25, the light emitted from the light emitting element 202 is blocked by the finger of the hand 228, and the light does not reach the light receiving element 203. Thereby, the handle portion 1
Since the light-receiving element 203 receives light when is not gripped, and the light-receiving element 203 does not receive light when the handle 1 is gripped, the same operation as that of the eighth embodiment of the invention is performed.

As can be seen from FIG. 25, in the present invention, the light emitting element 2 is placed at a position where the light passes near the handle portion 1 so that the light emitted from the light receiving element 202 can be blocked by a finger.
02 and the light receiving element 203.

The light emitting element 202 is also used in this embodiment.
The position of the light receiving element 203 may be reversed.

Next, the twelfth embodiment will be described.
FIG. 26 is a circuit configuration diagram of one embodiment of the present invention, and the grip sensor 204 may have the same configuration as that of the eighth invention.

FIG. 27 shows changes in voltage at points C and D in FIG. According to the eighth invention, the voltage at the point C becomes the H level when the handle portion is grasped. Therefore, during the periods of E, F, G, and I in FIG. 27, the steering wheel is held.

In the present invention, the timer circuit 229 is used to send a signal to the trigger circuit 230 after adding a predetermined delay time to the change in the output of the grip sensor.

When the voltage at the point C changes as shown in FIG. 27, the voltage at the output D point of the timer circuit 229 changes with a delay of the time T. If T> T1 and T> T2, the FG of FIG.
The voltage at the point D does not change even if it goes to the L level between GI and GI.

As a result, when the handle portion is gripped while the vacuum cleaner is being used, the rotation of the rotary brush of the floor suction tool is stopped within the time T even if the handle is momentarily released or gripped again. Never.

Next, a thirteenth embodiment will be described.
FIG. 28 is a circuit configuration diagram of the present embodiment, the grip sensor 204 may be the same as that of the eighth invention and the eleventh invention, and a plurality of grip sensors may be used as in the tenth invention. Reference numeral 231 is a rotary brush control means, and by the output of the switch 232 and the grip sensor 204,
The bidirectional thyristor 213 is controlled to control the rotation of the rotary brush motor 14. The rotary brush control means 231 can be easily realized by using a microcomputer or the like.

The operation of the rotary brush control means 231 is shown in FIG.
According to the flowchart, according to the flowchart, the handle portion 1 that constitutes the grip sensor 204 is shown.
(Refer to FIG. 16) When the switch 232 is pressed while holding the rotary brush of the floor suction tool, the rotary brush stops pressing the switch 232 without releasing the switch 232 when the handle 1 is released. In order to restart, the handle portion 1 is grasped and the switch 232 is pushed.

In this embodiment, the switch 232 is configured to rotate or stop the rotary brush each time it is pressed, but other methods such as providing two switches for starting and stopping may be used.

Finally, the fourteenth embodiment will be described. In FIG. 30, the grip sensor 204 is the eighth,
The invention may be the same as that of the eleventh invention, and the rotating brush control means 238
May have the same function as the ninth, twelfth and thirteenth inventions, and the switch 339 may be the same as those switches.

233 is a fan motor control means,
Fan motor 2 in the cleaner body 101 (see FIG. 32)
The switches 234 and 235 are for controlling the fan motor 237, operating, stopping, and selecting the suction force during operation.

With this structure, when the handle portion 1 (see FIG. 16) is grasped, the suction force K is obtained as shown by 240 in FIG. 31, and when it is not grasped, the suction force K is obtained and the suction force M is obtained. It becomes (K> M).

When the suction force is set to 242 by the switch 234, it is N when the handle is not gripped and L when the grip is gripped.

In this embodiment, no sensor other than the grip sensor is used, but it may be combined with other sensors, and the rotation speed shown in FIG. 31 may be set arbitrarily, and the handle portion is not gripped. At this time, the fan motor may be stopped, or the timer circuit may be used as in the twelfth invention.

[0107]

As is apparent from the above description of the embodiments, the effects of each means will be described.

According to the first means, the grip sensor detects whether or not the user is gripping the hand operation part, and rotates the rotary brush of the floor suction tool only when operating the vacuum cleaner. Therefore, by automatically stopping the rotation of the rotating brush when not in use, you can protect your fingers from accidentally touching the rotating brush, improving safety and reducing power consumption. is there. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the second means, the grip sensor detects whether or not the hand operation section is grasped, and when the hand operation section is grasped, the rotary brush is controlled to a high rotation speed. , When the operating part at hand is not grasped, by controlling the rotating brush to a low rotation, even if you accidentally touch the rotating brush, you will not hurt your finger etc. Can recognize that the rotating brush can rotate, so it is possible to call attention not to touch the floor suction tool, and when the rotating brush rotates more when you grasp the operating part again, Higher safety. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the third means, the detection range is widened by providing a plurality of grip sensors, and it is detected whether or not the user is gripping the operating section at hand, and only when operating the vacuum cleaner. Since the rotating brush of the floor suction tool can be rotated, the rotation of the rotating brush is automatically stopped when not in use, so even if you accidentally touch the rotating brush, your fingers etc. will not be damaged and it is safe. It has the effect of improving power consumption and saving power. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the fourth means, the light emitting element and the light receiving element of the grip sensor are provided in the handle portion by using the light guide portion, and the light from the light emitting element receives the reflected light from the hand through the light guide portion. By reaching the element, the detection range of the sensor is widened and it is detected whether or not the user is holding the operating part at hand, and the rotating brush of the floor suction tool is rotated only when operating the vacuum cleaner. By rotating the rotating brush when it is not in use, the rotation of the rotating brush is automatically stopped so that even if the rotating brush is accidentally touched, it will not hurt your fingers, improving safety and saving energy. There is. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the fifth means, by having a timer device for stopping and starting the motor of the rotating brush after a predetermined time after the output of the grip sensor changes, the rotation of the rotating brush is stopped carelessly, Since it does not start up, it can be controlled according to the user's feeling and the rotating brush of the floor suction tool can be rotated only when operating the vacuum cleaner, so rotating the rotating brush when not in use By automatically stopping, even if the rotating brush is accidentally touched, the finger or the like is not damaged, and safety is improved and power saving is achieved. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the sixth means, when it is detected by the grip sensor that the hand operation section is grasped,
By allowing the rotary brush to rotate only when the switch of the rotary brush of the floor suction tool is pressed, the rotary brush of the floor suction tool can be rotated only when operating the vacuum cleaner. Therefore, by automatically stopping the rotation of the rotating brush when not in use, the finger or the like is not damaged even if the rotating brush is accidentally touched, safety is improved, and there is an effect of power saving. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the seventh means, not only the rotation control of the rotating brush of the floor suction tool according to the signal of the grip sensor but also the operation of the vacuum cleaner body when the hand operation part is gripped by the grip sensor is performed. Set the fan motor to high rotation,
By controlling the rotation speed to be low when not gripped, it is possible to suppress power consumption when not in use. In addition, because light is used as a grip sensor for detection,
You don't need the force to hold the handle.

According to the eighth means, it is detected by the grip sensor whether or not the user is gripping the operating part at hand, and the rotary brush of the floor suction tool is rotated only when the vacuum cleaner is operated. Therefore, by automatically stopping the rotation of the rotating brush when not in use, you can protect your fingers from accidentally touching the rotating brush, improving safety and reducing power consumption. is there. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the ninth means, the grip sensor detects whether or not the hand operation unit is grasped, and when the hand operation unit is grasped, the rotary brush is controlled to a high rotation speed. , When the operating part at hand is not grasped, by controlling the rotating brush to low rotation, it is possible to improve safety without damaging fingers etc. even if the rotating brush is accidentally touched. Since it is possible to recognize that the rotating brush can rotate, it is possible to call attention not to touch the floor suction tool, and it is safe when the rotating brush rotates again when the operating part is gripped again. Will be more likely. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the tenth means, by providing a plurality of grip sensors, the detection range is widened, and it is detected whether the user holds or does not hold the hand operation part, and only when operating the vacuum cleaner. Since the rotating brush of the floor suction tool can be rotated, the rotation of the rotating brush is automatically stopped when not in use, so even if you accidentally touch the rotating brush, your fingers etc. will not be damaged and it is safe. It has the effect of improving power consumption and saving power. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the eleventh means, the light emitting element of the grip sensor is provided at the tip of the handle portion, and the light receiving element of the grip sensor is provided at the opposite end of the handle portion, so that the light from the light emitting element is controlled by the hand operation section. By reaching the light receiving element in parallel with the handle part, the detection range of the sensor is widened and it is detected whether or not the user is gripping the operation part at hand, and only when operating the vacuum cleaner. Since the rotating brush of the suction device can be rotated, the rotation of the rotating brush is automatically stopped when not in use, so even if you accidentally touch the rotating brush, your fingers etc. will not be injured and safety And the effect of power saving. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the twelfth means, by having a timer device for stopping and starting the motor of the rotating brush after a predetermined time after the output of the grip sensor is changed, the rotation of the rotating brush is inadvertently stopped, Since it does not start up, it can be controlled according to the user's feeling and the rotating brush of the floor suction tool can be rotated only when operating the vacuum cleaner, so rotate the rotating brush when not in use. By automatically stopping, even if the rotating brush is accidentally touched, the finger or the like is not damaged, and safety is improved and power saving is achieved. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

According to the thirteenth means, only when the switch of the rotary brush of the floor suction tool is pressed while the grip sensor detects that the hand operation section is being gripped, the above-mentioned rotation is performed. By allowing the brush to rotate, it is possible to rotate the rotary brush of the floor suction tool only when operating the vacuum cleaner, so by automatically stopping the rotation of the rotary brush when not in use. Even if the rotating brush is accidentally touched, the finger or the like is not damaged, which enhances the safety and saves power. In addition, because light is used as a grip sensor for detection,
You don't need the force to hold the handle.

According to the fourteenth means, not only the rotation control of the rotating brush of the floor suction tool according to the signal of the grip sensor but also the operation of the vacuum cleaner main body when the hand operation part is gripped by the grip sensor is performed. By controlling the fan motor to a high speed and controlling it to a low speed when not gripped, it is possible to reduce power consumption when not in use. Further, since light is used as the grip sensor for detection, the force for gripping the handle is not required.

As described above, according to the present invention, it is possible to provide an excellent vacuum cleaner in which the safety of the rotary brush of the floor suction tool is improved and unnecessary power consumption is suppressed.

[Brief description of drawings]

FIG. 1 is an external view of a hand operation unit of an electric vacuum cleaner showing an embodiment of a first means.

FIG. 2 is a cross-sectional view of the operation unit at the same hand.

FIG. 3 is a circuit diagram of a floor suction motor rotating brush motor of the same electric vacuum cleaner.

FIG. 4 is a circuit configuration diagram of a floor suction tool rotary brush motor according to an embodiment of a second means.

FIG. 5 is a graph of the number of rotations of the rotating brush of the vacuum cleaner of the embodiment.

FIG. 6 is an external view of a hand operation unit of the electric vacuum cleaner according to the embodiment of the third means.

FIG. 7 is a circuit configuration diagram of a motor for a floor suction tool rotating brush of the embodiment.

FIG. 8A is a front view of a hand operation unit of the electric vacuum cleaner according to the embodiment of the fourth means. FIG. 8B is a plan view of the hand operation unit of the electric vacuum cleaner according to the embodiment. Side view of the hand control unit of the vacuum cleaner

FIG. 9 is a cross-sectional view of the light guide section of the same embodiment.

FIG. 10 is a circuit diagram of a floor suction motor rotating brush motor according to an embodiment of a fifth means.

FIG. 11 is a timing chart of voltage changes in the circuit of the embodiment.

FIG. 12 is a circuit diagram of a floor suction motor rotating brush motor according to an embodiment of a sixth means.

FIG. 13 is a flowchart of the same embodiment.

FIG. 14 is a circuit configuration diagram of an electric vacuum cleaner according to an embodiment of a seventh means.

FIG. 15 is a graph of suction force of the electric vacuum cleaner according to the embodiment.

FIG. 16 is an external view of a hand operation unit of the vacuum cleaner according to the embodiment of the eighth means.

FIG. 17 is an external view of a use state of a hand operation unit of the electric vacuum cleaner of the embodiment.

FIG. 18 is a circuit diagram of a floor suction tool rotating brush motor of the embodiment.

FIG. 19 is a circuit configuration diagram of a floor suction tool rotary brush motor according to an embodiment of the ninth means.

FIG. 20 is a graph of the number of rotations of the rotating brush of the electric vacuum cleaner of the example.

FIG. 21 is an external view of a hand operation unit of the electric vacuum cleaner according to the embodiment of the tenth means.

FIG. 22 is a circuit configuration diagram of a floor suction tool rotating brush motor of the embodiment.

FIG. 23 is an external view of a state in which the hand operation unit of the electric vacuum cleaner of the embodiment is used.

FIG. 24 is an external view of a hand operation unit of the electric vacuum cleaner according to the embodiment of the eleventh means.

FIG. 25 is an external view of a use state of a hand operation unit of the electric vacuum cleaner according to the embodiment.

FIG. 26 is a circuit diagram of a floor suction tool rotary brush motor according to an embodiment of a twelfth means.

FIG. 27 is a timing chart of a voltage change of the circuit of the embodiment.

FIG. 28 is a circuit diagram of a floor suction motor rotating brush motor according to an embodiment of a thirteenth means.

FIG. 29 is a flowchart of the embodiment.

FIG. 30 is a circuit configuration diagram of an electric vacuum cleaner according to an embodiment of fourteenth means.

FIG. 31 is a graph of suction force of the electric vacuum cleaner of the example.

FIG. 32 is an external view of a conventional electric vacuum cleaner

[Explanation of symbols]

1 Handle 2,2 ', 202,202' Grip sensor light emitting element 3,3 ', 203,203' Grip sensor light receiving element 4,4 ', 204,204' Grip sensor 10,17,18,50,51 , 52, 53, 54, 5
5,56 Current limiting resistor 12,212 Optical trigger device 13,36,213 Bidirectional thyristor 14 Rotating brush motor 15,215 Switch 16 AC power supply 19,31,219,231 Rotating brush control unit 22 Logical sum circuit 29 , 229 Timer circuit 30, 230 Trigger circuit 33, 233 Fan motor control unit 37, 237 Fan motor 60, 61 Light guide unit 101 Vacuum cleaner body 102 Hose 103 Hand operation unit 104 Extension tube 105 Floor suction tool

Claims (14)

[Claims] 1. A vacuum cleaner body and a floor suction tool having a rotating brush that is rotated by a motor, a hose, and a hand operation unit, wherein the hand operation unit has a light emitting element and a light receiving element arranged in parallel with the light emitting element. An electric vacuum cleaner having a grip sensor including a signal processing unit and a control unit for controlling the motor for the rotating brush according to the output of the grip sensor. 2. A grip sensor including a light emitting element, a light receiving element arranged in parallel with the light emitting element, and a signal processing section is provided in the hand operation section, and a motor for the rotary brush is provided according to an output of the grip sensor. The vacuum cleaner according to claim 1, further comprising means for controlling a rotation speed. 3. A vacuum cleaner body, a floor suction tool provided with a rotating brush rotated by a motor, a hose, and a hand operation unit, wherein the hand operation unit has a light emitting element and a light receiving element arranged in parallel with the light emitting element. An electric vacuum cleaner having a plurality of grip sensors including a signal processing unit and a control unit that controls a motor for the rotating brush according to outputs of the plurality of grip sensors. 4. A vacuum cleaner body, a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation section, and the hand operation section includes a light emitting element, a light receiving element, a plurality of light guide sections, and a signal. An electric vacuum cleaner having a grip sensor including a processing unit, and having control means for controlling the motor for the rotating brush according to the output of the grip sensor. 5. A vacuum cleaner body, a floor suction tool provided with a rotating brush rotated by a motor, a hose, and a hand operation unit, wherein the hand operation unit has a light emitting element and a light receiving element arranged in parallel with the light emitting element. An electric vacuum cleaner having a grip sensor including a signal processing unit and a control means and a timer means for controlling the motor for the rotating brush according to the output of the grip sensor. 6. A vacuum cleaner body, a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation unit, wherein the hand operation unit has a light emitting element and a light receiving element arranged in parallel with the light emitting element. An electric vacuum cleaner having a grip sensor including a signal processing unit and a control unit and a reset unit for controlling the motor for the rotating brush according to the output of the grip sensor. 7. A vacuum cleaner body, a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation unit, wherein the hand operation unit has a light emitting element and a light receiving element arranged in parallel with the light emitting element. A control means for controlling the motor for the rotating brush according to the output of the grip sensor,
An electric vacuum cleaner having control means for changing a suction force of a fan motor of a cleaner body according to an output of the grip sensor. 8. A cleaner body and a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation section, and the light receiving element disposed in the hand operation section and facing the light emitting element. An electric vacuum cleaner having a grip sensor including an element and a signal processing unit, and having control means for controlling the motor for the rotating brush according to the output of the grip sensor. 9. A cleaner body and a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation section, and the light operation element and the light receiving element arranged facing the light emitting element in the hand operation section. An electric vacuum cleaner having a grip sensor including an element and a signal processing unit, and having means for controlling the number of rotations of the motor for the rotating brush according to the output of the grip sensor. 10. A vacuum cleaner body, a floor suction tool having a rotating brush that is rotated by a motor, a hose, and a hand operation section, wherein the hand operation section is arranged with a light emitting element and a light receiving element arranged facing the light emitting element. An electric vacuum cleaner having a plurality of grip sensors each including an element and a signal processing unit, and having control means for controlling a motor for the rotating brush according to outputs of the plurality of grip sensors. 11. A vacuum cleaner main body and a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation part, and are provided near the tip of the handle part of the hand operation part and at the base of the handle part. An electric cleaning system having a light emitting element, a light receiving element facing the light emitting element, and a grip sensor including a signal processing unit, and control means for controlling a motor for the rotating brush according to the output of the grip sensor. Machine. 12. A vacuum cleaner body and a floor suction tool having a rotating brush that is rotated by a motor, a hose, and a hand operation section, and the light receiving element disposed in the hand operation section facing the light emitting element. An electric vacuum cleaner having a grip sensor including an element and a signal processing unit, having control means for controlling the motor for the rotating brush according to the output of the grip sensor, and having a timer device as the control means. 13. A cleaner body and a floor suction tool provided with a rotating brush that is rotated by a motor, a hose, and a hand operation unit, wherein the hand operation unit is provided with a light emitting element and a light receiving element that faces the light emitting element. An electric vacuum cleaner having a grip sensor including an element and a signal processing unit, and having control means and reset means for controlling the motor for the rotating brush according to the output of the grip sensor. 14. A vacuum cleaner body, a floor suction tool having a rotating brush that is rotated by a motor, a hose, and a hand operation section, wherein the hand operation section is provided with a light emitting element and a light receiving element arranged facing the light emitting element. A control means for controlling the motor for the rotating brush according to the output of the grip sensor, and a suction means for the fan motor of the cleaner body according to the output of the grip sensor. An electric vacuum cleaner having control means for changing force.