JP2018143344A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To achieve improvement in operability of a suction port body of a vacuum cleaner and simplification of an electric connection between the suction port body and a vacuum cleaner body.SOLUTION: A vacuum cleaner includes a cleaner body incorporating a suction device for sucking dust and a battery, a suction port body having a suction port for sucking dust, a connection pipe for connecting the suction port body to the cleaner body, a drive wheel having a drive shaft, which is provided to the suction port body, a motor for driving the drive wheel, a driver circuit for driving the motor, a control part for controlling the driver circuit, which is provided to the cleaner body, a handle gripped by a user for holding the cleaner body, and an input part capable of performing inputting. The control part receives an input signal from the input part, and outputs an output signal for controlling a rotation speed of the motor independently to the driver circuit. The connection pipe includes at least two power lines for supplying power to the suction port body from the battery. The cleaner body and the suction port body include power line communication parts for providing and receiving at least one of the input and output signals through the power lines each other.SELECTED DRAWING: Figure 6

Description

  The present invention relates to a vacuum cleaner.

  As a background art of this invention, a suction port body having a dust suction port is connected to a vacuum cleaner body incorporating an electric blower and a dust collecting chamber, and the suction port body is a direction in which the suction port body is advanced to the front part. The front rotating brush that rotates in the right direction, the right rotating brush that rotates in the direction that moves the suction port to the right and the rotating shaft in the direction perpendicular to the front rotating brush at the right end, and the rotating shaft that moves to the front rotating brush at the left end. A left-side rotating brush that is positioned vertically and rotates in a direction that moves the suction port to the left, and when the suction port is advanced to the right, the rotation speed of the right-side rotating brush is set to be higher than that of the left-side rotating brush, A vacuum cleaner is known in which the rotation speed of the left rotating brush is set to be higher than that of the right rotating brush when moving to the left (see, for example, Patent Document 1).

JP 2012-105845 A

  However, in such a conventional vacuum cleaner, it is possible to move the suction port body in the forward and left-right directions, but there is a problem that it is difficult to move it in an arbitrary direction.

  Furthermore, in order to drive and control the electric motors of the front rotating brush, the right rotating brush, and the left rotating brush provided in the suction port body, two power lines for supplying power from the cleaner body to the suction port body In addition to this, it is necessary to provide a plurality of control lines for transmitting control signals along the hose and the extension pipe, and there is a problem that the wiring structure in the hose and the extension pipe and the connection structure thereof are complicated.

  The present invention has been made in view of such circumstances, and is a vacuum cleaner that is excellent in the operability of the suction port body and that has simplified electrical wiring and connection between the suction port body and the vacuum cleaner body. Is to provide.

  The present invention includes a vacuum cleaner main body including a suction device for sucking dust and a battery, a suction port body having a suction port for sucking dust, a connection pipe connecting the suction port body to the cleaner main body, and the suction A driving wheel having a driving shaft, a motor for driving the driving wheel, a driver circuit for driving the motor, and a control unit for controlling the driver circuit provided in the cleaner body and use A handle that is gripped by a person to hold the vacuum cleaner main body and an input unit capable of input, and the control unit receives an input signal from the input unit and independently controls the rotation speed of the motor. While outputting a signal to the driver circuit, the connecting pipe includes at least two power lines for supplying electric power from the battery to the suction port body, and the vacuum cleaner body and the suction port body include: At least one of the fill force and output signal through the power line is to provide an electric vacuum cleaner, characterized in that it comprises a power line communication unit for exchanging with each other.

  According to the present invention, the input unit that can be input is provided, and the control unit receives the output from the input unit and independently controls the rotational speed of the motor of the drive wheel having the drive shaft in the suction port body. The moving direction of the mouth can be arbitrarily changed. In addition, at least two power lines that electrically connect the suction port body from the cleaner body are provided on the connection pipe, and a power line communication unit that transmits and receives control signals via the power line is provided on the cleaner body and the suction port body. The power supplied from the battery to the suction port and at least one of the output signal from the control unit to the driver circuit and the input signal from the manual input unit to the control unit are transmitted by only two power lines. Therefore, the electrical wiring and connection configuration between the suction port body and the cleaner body are extremely simplified.

It is an external appearance perspective view which shows Embodiment 1 of the vacuum cleaner of this invention. It is internal structure explanatory drawing of the vacuum cleaner shown in FIG. It is principal part sectional drawing which shows the suction inlet of the vacuum cleaner of FIG. It is explanatory drawing which shows the structure and bending operation | movement of a connection pipe part of the suction inlet shown in FIG. It is explanatory drawing which shows rotation operation | movement of the connection pipe part shown in FIG. It is an electric circuit diagram which shows the control system of the vacuum cleaner of FIG. It is explanatory drawing which shows the operation part of the vacuum cleaner of FIG. It is a FIG. 6 corresponding view of Embodiment 3 of the vacuum cleaner of this invention. It is a FIG. 7 corresponding view of Embodiment 3 of the electric vacuum cleaner of this invention.

  The vacuum cleaner according to the present invention includes a vacuum cleaner main body including a suction device for sucking dust and a battery, a suction port body having a suction port for sucking dust, and a connection pipe for connecting the suction port body to the vacuum cleaner main body. A driving wheel having a driving shaft provided in the suction port body, a motor for driving the driving wheel, a driver circuit for driving the motor, and the driver circuit provided in the cleaner body. A control unit and a handle that a user holds to hold the vacuum cleaner main body and an input unit that can be input are provided, and the control unit receives an input signal from the input unit and independently controls the rotation speed of the motor. An output signal to be controlled to the driver circuit, and the connecting pipe includes at least two power lines for supplying power from the battery to the suction port body. Suction port body is characterized by having a power line communication unit for exchanging with each other via the power line at least one of said input and output signals.

  The suction port body includes a connection pipe portion to which a tip of the connection pipe is connected, and the connection pipe portion includes a bending mechanism portion that supports the connection tube so that the connection tube can be bent along a forward direction of the suction port body, and a bending mechanism. A rotating mechanism that supports the connecting pipe so as to be rotatable in the left-right direction with respect to the advancing direction of the suction port body, and the input unit is provided in the vicinity of the rotating mechanism. It is preferable that a sensor for detecting a rotation angle is provided, and a detection signal of the sensor is transmitted to the control unit by the power line communication unit via the two power lines.

  The control unit may make the rotation speeds of the motors different from each other when the sensor detects a rotation angle exceeding a predetermined range.

  The control unit may change the magnitude of the rotational speed of at least one of the motors according to a change in the detection angle of the sensor.

  The input unit may include a manual switch that is provided in the vicinity of the handle and inputs the control unit to change the rotation speed of the motor.

Hereinafter, the present invention will be described in detail with reference to embodiments shown in the drawings. The present invention is not limited to the embodiments.
(Embodiment 1)
1 is an external perspective view showing Embodiment 1 of the vacuum cleaner of the present invention, and FIG. 2 is an explanatory diagram of the internal configuration of the vacuum cleaner shown in FIG.

<Overall configuration of vacuum cleaner>
As shown in FIG. 1, the vacuum cleaner 1 includes a cleaner body 2, a suction port body 40, and a connection pipe (extension pipe) 4 that hermetically connects the cleaner body 2 to the suction port body 40. .

  The vacuum cleaner main body 2 includes a handle 5 held by a worker, an operation unit 6 provided on the handle 5 and having a switch for starting / stopping, and a connection unit that receives the proximal end of the connection pipe 4 and removably connects it. 7 is provided.

A connecting portion 9 is provided at the tip of the connecting pipe 4 to receive and connect the upper end of the connecting pipe portion 42 of the suction port body 40 so as to be detachable.
Moreover, the connection pipe part 42 is provided with the mechanism which can bend in the angle range of about 90 degree | times in the front-back direction with respect to the suction inlet body 40 so that it may mention later.

  As shown in FIG. 2, the cleaner body 2 includes a dust collection chamber 11 that is detachably installed, a dust collection filter 12 that is provided on the downstream side of the dust collection chamber 11, an electric blower 13, and a dust collection filter 12. And an air flow path 14 that connects the electric blower 13, an exhaust flow path 37 provided downstream of the electric blower 13, and a flow path 39 that connects the connection portion 7 and the dust collection chamber 11.

  A known cyclone type can be suitably used for the dust collection chamber 11. Moreover, the battery 17 is loaded in the cleaner main body 2 in a replaceable manner.

  The vacuum cleaner 1 shown to FIG. 1, FIG. 2 shows the state which is independent on the floor surface F. FIG. That is, the angle formed by the connecting pipe 4 and the floor surface F is slightly larger than 90 degrees, and the center of gravity of the cleaner body 2 is in a state of equilibrium so that the vacuum cleaner 1 is independent from the floor surface F.

<Configuration of suction port>
FIG. 3 is a cross-sectional view of an essential part showing a suction port body of the vacuum cleaner of FIG. As shown in the figure, the suction port body 40 includes a main body case 41 having a bottom surface 50 provided with a suction port 41a extending in the left-right direction (arrow A direction), and a connecting pipe portion connected to the rear portion of the main body case 41. 42, a rotary brush 43 rotatably supported by a rotary shaft 20 extending in the left-right direction at a suction port 41a in the main body case 41, and a rotary brush motor 58 that rotationally drives the rotary brush 43.

  The small-diameter pulley 23 provided on the output shaft 22 of the rotary brush motor 58 and the large-diameter pulley 24 provided on the rotary shaft 20 of the rotary brush 43 are coupled by the belt 25, and the rotational force of the rotary brush motor 58 rotates. It is transmitted to the brush 43.

  On the bottom surface 50 of the main body case 41, left and right driving wheels 26L and 26R are further partially provided toward the floor F (FIG. 2) through the openings 27L and 27R, respectively, at the left and right ends of the rear side of the rotating brush 43. It is provided to protrude.

  Drive wheel motors 55L and 55R for driving the drive wheels 26L and 26R are installed on the bottom surface 50 via reduction gears 30L and 30R, and the output shafts of the reduction gears 30L and 30R are the drive shafts of the drive wheels 26L and 26R. Used as 28L and 28R, respectively. The drive wheel motors 55L and 55R are arranged so that the drive shafts 28L and 28R are aligned on a straight line parallel to the rotary brush 43.

  In addition, a suction channel 16 that extends in the front-rear direction is provided in the center of the main body case 41 by connecting the suction port 41 a and the connection pipe portion 42. As will be described later, the connection pipe section 42 includes a bending mechanism section 80 that bends the connection pipe 4 (FIGS. 1 and 2) connected to the connection pipe section 42 back and forth, and a rotation mechanism that rotates left and right. Part 81.

  A pair of rear wheels 36 </ b> L and 36 </ b> R are provided at the rear of the main body case 41. The rear wheels 36L and 36R are freewheels in which the respective axles are supported so as to be able to rotate 360 degrees parallel to the bottom surface 50, and the direction change of the suction port body 40 by the drive wheels 26L and 26R is smooth as will be described later. The body case 41 is held as is done.

<Bending / turning mechanism of connecting pipe>
4 is a side view of the suction port body showing the configuration and bending operation of the connection pipe portion 42 of the suction port body 40 shown in FIG. 3, and FIG. 5 is a suction port body showing the rotation operation of the connection pipe portion 42 shown in FIG. FIG.
As shown in FIG. 4, the connection pipe portion 42 is connected to the suction flow path 16 via the bending mechanism portion 80 and the rotation mechanism portion 81 at the rear portion of the suction port body 40.

  Then, as shown in FIG. 4, the bending mechanism portion 80 has the connection pipe portion 42 from a posture that is substantially perpendicular to the floor surface F to a posture that is substantially horizontal toward the rear, that is, an angle θ (about 90 degrees). In such a range, it is configured to be supported so that it can be bent in the front-rear direction.

  Further, as shown in FIG. 5, the rotation mechanism portion 81 causes the connecting pipe portion 42 to be bent from a posture perpendicular to the floor surface F (position along the vertical line CL) to a substantially horizontal posture, that is, vertical. The rotation angle θL, θR in the left-right direction from the line CL is configured to be supported so as to be rotatable until each becomes about 90 degrees. The structures of the bending mechanism portion 80 and the rotation mechanism portion 81 are well known in the technical field of the present invention, and thus detailed description thereof is omitted.

  As shown in FIGS. 3 and 4, the rotation mechanism portion 81 is provided with a sensor 67 that detects a state of rotation of the connection pipe portion 42 in the left-right direction from the vertical line CL.

<Control system configuration>
6 is an electric circuit diagram showing a control system (control circuit) of the electric vacuum cleaner 1 shown in FIG.
As shown in the figure, the control circuit includes a control unit 54 including a microcomputer including a battery 17, a CPU 51, a ROM 52, and a RAM 53, an operation unit 6 for inputting an operation signal S0 such as start / stop to the control unit 54, left and right A motor driver circuit 57 for individually controlling the drive wheel motors 55L and 55R for respectively driving the drive wheels 26L and 26R, a motor driver circuit 59 for controlling the rotary brush motor 58 for driving the rotary brush 43, A motor driver circuit 92 for controlling the blower motor 70 incorporated in the electric blower 13, a power switch 62 for supplying power from the battery 17 to the entire control circuit, a sensor 67, a sensor control unit 66 for operating the sensor 67, and It comprises power line communication units P1, P2.

  Here, as the power line communication units P1 and P2, a PCL (Power Line Communication) type power line communication device is used that transmits and receives communication signals by superimposing communication signals on the power lines.

  Further, as shown in FIG. 6, the battery 17, the power switch 62, the motor driver circuit 92, the control unit 54, the operation unit 6, and the power line communication unit P1 are provided in the cleaner body 2, and the motor driver The circuits 57 and 59, the sensor 67, the sensor control unit 66, and the power line communication unit P2 are provided in the suction port body 40.

  And the vacuum cleaner main body 2 and the suction inlet 40 are electrically connected only by the two power lines W1 and W2 via the power line communication parts P1 and P2. The two power lines W1 and W2 are installed along the inside or outside of the connection pipe 4, and are connected to the connection portions 7 and 9 (FIGS. 1 and 2) in a detachable manner by an outlet.

  The power line communication units P1, P2 supply the output power of the battery 17 to the motor driver circuits 57, 59 and the sensor control unit 66 through the power lines W1, W2, and control the motor driver circuits 57, 59 together. The control signals S2 and S3 are transmitted from the control unit 54 to the motor driver circuits 57 and 59, and the output signal S4 of the sensor 67 is transmitted to the control unit 54.

  Therefore, when electric power is supplied from the battery 17 to the motor driver circuits 57, 59, and 92, the control unit 54, the operation unit 6, and the sensor control unit, the control unit 54 receives the operation signal S0 from the operation unit 6. In response to the output signal S4 from the sensor 67, control signals S1, S2, and S3 are output to the motor driver circuits 92, 57, and 59 to control the motor driver circuits 92, 57, and 59, respectively.

  As described above, the sensor 67 is provided in the rotation mechanism portion 81 (see FIGS. 3 and 4). In this embodiment, the sensor 67 is perpendicular to the connection pipe portion 42 (that is, the connection tube 4) shown in FIG. A switch that is turned on when the rotation angle θL in the left direction from the line CL becomes θL ≧ Δθ (in this embodiment, Δθ = 10 degrees), and the rotation angle θR in the right direction is θR ≧ Δθ (this In the embodiment, a switch that turns ON when Δθ = 10 degrees and outputs the rotation direction is used in combination. In addition to a mechanical switch, a photo interrupter, a magnetic proximity switch, or the like is preferably used as these switches.

  FIG. 7 is an explanatory diagram of the operation unit 6 provided on the handle 5 (FIG. 1). As shown in the figure, the operation unit 6 is provided with a start / stop switch 63 and a power switch 62 (FIG. 6).

<Operation of vacuum cleaner>
When the electric vacuum cleaner 1 configured in this way is installed on the floor surface as shown in FIG. 1, the user grasps the handle 5 from the rear of the electric vacuum cleaner 1 and brings the connecting pipe 4 forward. The connecting pipe 4 is tilted backward by an action according to the height of the user, for example, about 20 to 40 degrees, by the action of the bending mechanism 80 (FIG. 4).

  Therefore, when the user presses the power switch 62 of the operation unit 6 (FIG. 7) to turn it ON and presses the start / stop switch 63 to “start”, the drive wheel motors 55L and 55R, the blower motor 70, and the rotary brush motor 58 starts driving.

  As a result, the suction port body 40 starts to advance automatically, and at the same time, the rotating brush 43 rotates, the electric blower 13 is driven, and the cleaning operation is started. As shown in FIG. 2, the dust on the floor is collected by the rotation of the rotating brush 43 and sucked into the dust collecting chamber 11 from the suction port 41a together with air through the suction flow path 16, the connecting pipe 4, and the flow path 39. .

  Air containing dust sucked into the dust collection chamber 11 is filtered by the dust collection filter 12, and only clean air is discharged from the electric blower 13 through the flow path 14 to the outside through the exhaust flow path 37.

  On the other hand, the dust collected by the dust collection filter 12 falls due to gravity and is collected at the bottom of the dust collection chamber 11. When the dust collection amount in the dust collection chamber 11 reaches the allowable maximum amount, the operator removes the dust collection chamber 11 from the cleaner body 2 and discards the accumulated dust. In addition, the fine dust adhering to the dust collection filter 12 without falling from the dust collection filter 12 is removed from the dust collection filter 12 by washing or the like.

  If the user maintains the inclination of the connecting pipe 4 within the range of 10 degrees (± 10 degrees) from the vertical line CL (FIG. 5) in the left-right direction during the cleaning operation, the drive wheels 26L, 26R Rotate in the same direction at the same rotational speed, and the suction port body 40 advances straight.

  Next, when the user tilts the connecting pipe 4 leftward from the vertical line CL (FIG. 5) at an angle larger than 10 degrees, the sensor 67 detects the state and inputs it to the control unit 54. Controls the motor driver circuit 57 so that the rotational speed of the drive wheel 26L is lower than the rotational speed of the drive wheel 26R.

  Thereby, the suction port body 40 turns leftward. The magnitude of the turning radius is inversely proportional to the difference in rotational speed between the drive wheels 26L and 26R. When the user returns the inclination of the connecting pipe 4 to a range within 10 degrees with respect to the vertical line CL (FIG. 5), the drive wheels 26L and 26R rotate again at the same rotational speed, and the suction port body 40 Go straight ahead.

  Next, when the user tilts the connecting pipe 4 to the right by 10 degrees or more from the vertical line CL (FIG. 5), the sensor 67 detects the state and inputs it to the control unit 54. The motor driver circuit 57 is controlled so that the rotational speed of 26R is lower than the rotational speed of the drive wheels 26L.

  Thereby, the suction inlet body 40 turns rightward. When the user returns the inclination of the connecting pipe 4 to a range smaller than 10 degrees from the vertical line CL (FIG. 5), the drive wheels 26L and 26R rotate again at the same rotational speed, and the suction port body 40 is straight. Advance.

  Thus, the operator can drive the suction port body 40 in an arbitrary direction only by tilting the connecting pipe 4 left and right with a hand holding the handle 5, so that the workability of the vacuum cleaner is improved.

  When ending the cleaning work, the operator pushes the start / stop switch of the operation unit 6 (FIG. 7) to “stop”. As a result, the travel operation by the drive wheels 26L, 26R, the rotation operation of the rotary brush 43, and the suction operation of the suction port 41a are stopped.

Therefore, the operator pushes the power switch 62 of the operation unit 6 to turn it off, returns the vacuum cleaner 1 to the posture shown in FIGS.
(Embodiment 2)
In the second embodiment of the present invention, the sensor 67 (see FIGS. 3 and 4) in the first embodiment is rotated in the left-right direction with the vertical line CL of the connection pipe portion 42 shown in FIG. 5 as a reference (0 degree). The angle sensor that measures the angles θL and θR (0 to 90 degrees) is used, and the control unit 54 drives so that the difference between the rotation speeds of the left and right drive wheels is proportional to the measured rotation angle. The wheel motors 55L and 55R are controlled. Other configurations are the same as those of the first embodiment. In addition, a rotary encoder, a potentiometer, etc. can be used suitably for an angle sensor.

  Therefore, in this embodiment, if the user maintains the connecting pipe 4 at the position of the vertical line CL (FIG. 5), that is, θL = θR = 0 degrees during the cleaning operation, the drive wheels 26L, 26R Rotating in the same direction at the same rotational speed, the suction port body 40 advances straight.

  Next, when the user tilts the connection pipe 4 leftward with respect to the vertical line CL (FIG. 5), that is, when the connection pipe portion 42 is rotated to the left, the sensor 67 detects the rotation angle θL. Then, the controller 54 controls the motor driver circuit 57 so that the rotational speed of the drive wheel 26L is lower than the rotational speed of the drive wheel 26R by a rotational speed proportional to θL.

  As a result, the suction port body 40 turns leftward, but the magnitude of the turning radius is inversely proportional to the difference in rotational speed between the drive wheels 26L and 26R, and decreases as θL increases. Therefore, the user can adjust the magnitude of the leftward turning angle of the suction port body 40 by adjusting the magnitude of the inclination (rotation angle θL) of the connecting pipe 4.

  Similarly, when the user tilts the connecting pipe 4 to the right with respect to the vertical line CL (FIG. 5), the magnitude of the turning angle of the suction port body 40 to the right is set to It can be adjusted by adjusting the magnitude of the inclination (rotation angle θR).

  When the user returns the connecting pipe 4 to the position of the vertical line CL (FIG. 5), that is, the position of θL = θR = 0 degrees, the driving wheels 26L and 26R rotate again at the same rotational speed, and the suction port body 40 goes straight ahead.

  As described above, the operator can turn the suction port body 40 at an arbitrary turning angle only by changing the angle at which the connection pipe 4 is tilted left and right with the hand holding the handle 5. Operation becomes easy and workability of the vacuum cleaner is improved.

(Embodiment 3)
8 is a diagram corresponding to FIG. 6 of the third embodiment of the present invention, and FIG. 9 is a diagram corresponding to FIG. 7 of the third embodiment of the present invention. In this embodiment, the sensor 67 shown in FIGS. 3, 4 and 6 and the sensor control unit 66 shown in FIG. 6 are removed from the first embodiment, and the operation unit 6 shown in FIGS. The operation unit 6a shown in FIG. 9 is replaced.

  The operation unit 6a shown in FIG. 9 is provided with a left push button switch 61L and a right push button switch 61R in addition to the same power switch 62 and start / stop switch 63 as in the first embodiment.

  Then, the control unit 54 (FIG. 8) sets the rotational speed of the drive wheel 26L to be lower than the rotational speed of the drive wheel 26R by a predetermined rotational speed while the left push button switch 61L is being pressed, While the push button switch 61R is being pressed, the motor driver circuit 57 is controlled so that the rotational speed of the drive wheel 26R is lower than the rotational speed of the drive wheel 26L by a predetermined rotational speed. Other configurations are the same as those of the first embodiment.

  Therefore, in this embodiment, when the user does not press either the left push button switch 61L or the right push button switch 61R during the cleaning operation, the drive wheels 26L and 26R rotate in the same direction at the same rotational speed. Then, the suction port body 40 advances straight.

  Next, when the user presses the left push button switch 61L with a hand holding the handle 5, the control unit 54 causes the rotational speed of the drive wheel 26L to be lower than the rotational speed of the drive wheel 26R by a predetermined speed while continuing to press the switch. The motor driver circuit 57 is controlled.

  Thereby, the suction port body 40 turns leftward. The magnitude of the turning radius is inversely proportional to the difference in rotational speed between the drive wheels 26L and 26R. When the user releases the left push button switch 61L, the drive wheels 26L and 26R rotate again at the same rotational speed, and the suction port body 40 moves straight forward.

  Next, when the user presses the right push button switch 61R with the hand holding the handle 5, the controller 54 causes the rotational speed of the drive wheel 26R to be lower than the rotational speed of the drive wheel 26L by a predetermined speed while continuing to press the switch. The motor driver circuit 57 is controlled.

  Thereby, the suction inlet body 40 turns rightward. Then, when the user releases the right push button switch 61R, the drive wheels 26L and 26R rotate again at the same rotational speed, and the suction port body 40 moves straight forward.

  In this way, the operator can change the traveling direction of the suction port body 40 to an arbitrary direction by simply pressing either the left push button switch 61L or the right push button switch 61R of the operation unit 6a with a hand holding the handle 5. Therefore, the operation of moving the suction port body 40 is facilitated, and the workability of the vacuum cleaner is improved.

  Moreover, in Embodiment 1-3, the cleaner body 2 and the suction inlet 40 are electrically connected only by the two power lines W1 and W2 provided along the connection pipe 4, and thereby electric power and Since the transmission of the control signal is performed, the wiring and connection structure in the connection pipe 4 are simplified, and manufacture and maintenance of the connection pipe 4 are facilitated.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner, 2 Vacuum cleaner main body, 4 Connection pipe, 5 Handle, 6,6a Operation part, 7 Connection part, 9 Connection part, 11 Dust collection chamber, 12 Dust collection filter, 13 Electric blower, 14 Ventilation path, 16 Suction flow path, 17 battery, 20 rotating shaft, 22 output shaft, 23 small diameter pulley, 24 large diameter pulley, 25 belt, 26L, 26R driving wheel, 27L, 27R opening, 28L, 28R driving shaft, 30L, 30R speed reducer, 36L, 36R Rear wheel, 37 Exhaust flow path, 39 Flow path, 40 Suction port body, 41 Main body case, 41a Suction port, 42 Connection pipe section, 43 Rotating brush, 50 Bottom surface, 51 CPU, 52 ROM, 53 RAM, 54 Control unit, 55L, 55R Drive wheel motor, 57 Motor driver circuit, 58 Rotary brush motor, 59 Motor driver circuit, 61L Left Button switch, 61R Right push button switch, 62 Power switch, 63 Start / stop switch, 67 Sensor, 70 Blower motor, 80 Bending mechanism, 81 Turning mechanism, 92 Motor driver circuit, CL vertical line, F Floor , P1, P2 Power line communication unit W1, W2 Power line

Claims (5)

  A vacuum cleaner body containing a suction device and a battery for sucking dust, a suction port body having a suction port for sucking dust, a connection pipe connecting the suction port body to the cleaner body, and a suction port body A driving wheel having a driving shaft, a motor for driving the driving wheel, a driver circuit for driving the motor, a control unit for controlling the driver circuit provided in the cleaner body, and a user A handle for holding the machine main body and an input unit capable of input, and the control unit receives an input signal from the input unit and independently outputs an output signal for controlling the rotation speed of the motor. The connection pipe includes at least two power lines that supply power from the battery to the suction port body, and the cleaner body and the suction port body include the input and the output. Vacuum cleaner, characterized in that it comprises a power line communication unit for exchanging with each other at least one through the power line of the output signal.   The suction port body includes a connection pipe portion to which a tip of the connection pipe is connected, and the connection pipe portion includes a bending mechanism portion that supports the connection tube so that the connection tube can be bent along a forward direction of the suction port body, and a bending mechanism. A rotating mechanism that supports the connecting pipe so as to be rotatable in the left-right direction with respect to the advancing direction of the suction port body, and the input unit is provided in the vicinity of the rotating mechanism. The vacuum cleaner according to claim 1, further comprising a sensor that detects a rotation angle, wherein a detection signal of the sensor is transmitted to the control unit by the power line communication unit via the two power lines.   The electric vacuum cleaner according to claim 2, wherein the control unit makes the rotation speeds of the motors different from each other when the sensor detects a rotation angle exceeding a predetermined range.   The vacuum cleaner according to claim 2, wherein the control unit changes the magnitude of the rotation speed of the motor according to a change in a detection angle of the sensor.   The vacuum cleaner according to claim 1, wherein the input unit includes a manual switch that is provided in the vicinity of the handle and inputs the control unit to change the rotation speed of the motor.

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