JP5620089B2 - Electric vacuum cleaner - Google Patents

Description

  The present invention relates to a vacuum cleaner including a suction port that can travel on a surface to be cleaned.

  Conventionally, this type of vacuum cleaner includes a vacuum cleaner body that houses an electric blower. A hose body is connected to the vacuum cleaner body in communication with the suction side of the electric blower. An extension pipe and a floor brush as a suction port body are sequentially connected to the tip side of the hose body. In addition, a grip portion that is gripped by the user protrudes from a tip portion that is a connection portion with the extension pipe of the hose body, and a setting button for setting an operation mode of the electric blower is provided on the grip portion. Is arranged. Furthermore, on both sides of the floor brush, wheels for improving traveling performance on the floor surface are rotatably arranged. Then, for example, the user places the floor brush on the floor surface to be cleaned, grips the gripping portion, and operates the setting button to drive the electric blower in a desired operation mode. A floor brush is run on the floor surface through the extension pipe to clean the floor surface (see, for example, Patent Document 1).

  However, in this configuration, the wheel arranged on the floor brush improves the traveling performance of the floor brush on the floor surface. However, when changing the traveling direction of the floor brush, the user twists the gripping part greatly. Since it needs to be operated, there is a problem that the load on the user's arm becomes large during long-time cleaning.

  Therefore, a configuration is known in which the magnitude of the gripping force of the user gripping the gripping part or the torsional force to the left and right is detected and driving wheels are driven and controlled in accordance with those forces (for example, (See Patent Document 2).

  However, even with such a configuration, the user must apply a force to the grip portion, and there is a problem that it is not easy to sufficiently reduce the load on the user's arm.

Japanese Patent Laid-Open No. 11-178758 (page 3-4, FIG. 2) Japanese Unexamined Patent Publication No. 5-95863 (page 3-6, FIG. 1)

  As described above, it is desired to improve the cleaning performance by reducing the load on the user when operating the suction port body.

  This invention is made | formed in view of such a point, and it aims at providing the vacuum cleaner which improved the operativity of the suction inlet body and aimed at the improvement of cleaning property.

The present invention comprises a driving wheel for traveling on the surface to be cleaned, a suction port body communicating with the suction side of the electric blower, and a gripping part for operating the traveling direction of the suction port body on the surface to be cleaned; The motion detection means is an acceleration sensor fixed to the gripping portion and detects the right and left tilt of the gripping portion by acceleration, and the suction port body is caused to travel toward the tilting direction of the gripping portion detected by the motion detection means . As described above, the control means for controlling the driving of the driving wheel is provided.

According to the present invention, the control unit controls the driving of the drive wheels so that the suction port body travels in the tilt direction in response to the left / right tilt of the gripping portion detected by the motion detection unit that is an acceleration sensor. Thus, the user can assist the traveling of the suction port on the surface to be cleaned by slightly changing the left / right inclination of the gripping portion, and the cleaning performance can be improved.

It is explanatory drawing which shows the internal structure of the vacuum cleaner of the 1st Embodiment of this invention. It is a perspective view of a vacuum cleaner same as the above. It is a flowchart which shows driving | running | working control of a vacuum cleaner same as the above. It is a flowchart which shows driving | running | working control of the vacuum cleaner of the 2nd Embodiment of this invention. It is explanatory drawing which shows the internal structure of the vacuum cleaner of the 3rd Embodiment of this invention. It is a perspective view of a vacuum cleaner same as the above.

  The configuration of the first embodiment of the present invention will be described below with reference to the drawings.

  In FIG. 2, reference numeral 11 denotes a so-called canister-type vacuum cleaner. The vacuum cleaner 11 illustrates dust sucked together with intake air generated by driving an electric blower 13 housed in the cleaner body 12. Do not collect in the dust collection part.

  Further, the vacuum cleaner main body 12 has a main body suction port 14 for sucking air from the outside opened at the front. The main body suction port 14 is connected to a flexible and bendable elongated substantially cylindrical hose body 15 in communication. A hand operating section 16 is provided at the tip (upstream side) of the hose body 15. The hand operating unit 16 is provided with a gripping portion 17 that is gripped by an operator when cleaning, and is provided with a plurality of electric blowers 13 and the like in the cleaner body 12. A plurality of setting buttons 18 for setting any of the operation modes are provided.

  Further, an elongated substantially cylindrical extension tube 19 formed of, for example, a rigid synthetic resin or the like and capable of expanding and contracting is detachably connected to the distal end (upstream side) of the hand operation unit 16. That is, the extension pipe 19 is connected to the suction side of the electric blower 13 through the hose body 15. In addition, at the tip (upstream side) of the extension pipe 19, for example, a suction port body that is placed on a carpet on the floor, which is a running surface as an indoor surface to be cleaned, and sucks dust on the carpet. The floor brush 20 is connected so as to be detachable. Therefore, the floor brush 20 is connected to the suction side of the electric blower 13 through the extension pipe 19, the hose body 15, and the main body suction port.

  The floor brush 20 includes a case body 21 as a suction port body, a connection pipe 22 rotatably connected to a rear portion of the case body 21, and one and the other disposed on both sides of the case body 21. Traveling wheels 23 and 24 which are rotating body units as driving wheels. The floor brush 20 is provided with a rotary cleaning body (rotary brush) (not shown) and driving means (not shown) for driving the rotary cleaning body to rotate. Further, the floor brush 20 can be operated on the floor surface via the extension pipe 19 by gripping the grip portion 17.

  The case body 21 is formed in a longitudinal shape in the left-right width direction, that is, in a horizontally long shape. In addition, a suction port (not shown) is formed in the lower part of the case body 21 facing the floor surface, and a rotary cleaning body is rotatably disposed in the suction port.

  The connection pipe 22 is connected to a substantially central portion in the left-right width direction of the rear portion of the case body 21 so as to be rotatable in the circumferential direction and the vertical direction. The upstream side communicates with the suction port of the case body 21 and is connected to the downstream side. The side is attachable to and detachable from the distal end portion of the extension pipe 19.

  The traveling wheels 23 and 24 may have any configuration. For example, the traveling wheels 23 and 24 are disposed on the left and right sides of the case body 21 so as to be rotatable along the front-rear direction. That is, the traveling wheels 23 and 24 are disposed at positions symmetrical to each other with respect to the lateral width direction of the case body 21. In addition, brushed fabrics 23a and 24a are attached to the periphery of the traveling wheels 23 and 24 over the entire circumference. Each of the traveling wheels 23 and 24 is configured to be rotationally driven by motors 34 and 35 serving as one and the other driving units disposed inside the case body 21, respectively.

  Next, the internal configuration of the vacuum cleaner 11 will be described with reference to FIG.

  The vacuum cleaner 11 receives power from a commercial AC power source e through a power cord (not shown), for example. The electric blower 13 is electrically connected to a commercial AC power source e in a series circuit with a triac TR as a control element. Control means 41 arranged in the cleaner body 12 is electrically connected to the control terminal of the triac TR. This control means 41 is fed by a 5V power supply unit 43 that generates, for example, a 5V DC power supply from a direct current (DC) power supply unit 42 connected in parallel to the electric blower 13 with respect to the commercial AC power supply e, and passes through a triac TR. Thus, the phase angle of the input of the electric blower 13 is controlled. Further, the control means 41 is electrically connected to the motors 34 and 35 through wires inserted into the hose body 15 and the extension pipe 19, respectively. The motors 34 and 35 are fed from the DC power supply unit 42. Has been. Further, the control means 41 can individually control the rotational direction and the rotational speed (rotational speed) of the motors 34 and 35 by controlling the inputs of the motors 34 and 35. The control means 41 is electrically connected to the setting button 18 and the operation detection means 44 arranged on the grip portion 17. The motion detection means 44 is, for example, an acceleration sensor that is at least partially disposed on the gripping part 17, and detects the state of the gripping part 17 such as the movement, tilt, and acceleration of the gripping part 17 and outputs it to the control means 41. Is configured to do.

  For example, a part of the control means 41 that controls the driving of the motors 34 and 35 may be disposed on the floor brush 20.

  Next, the operation of the first embodiment will be described with reference to the flowchart shown in FIG. Hereinafter, the left-right direction is based on the rear side of the floor brush 20, that is, the direction viewed from the operator side.

  At the time of cleaning, with the dust collecting part attached to the cleaner main body 12, the operator holds the holding part 17 and operates a desired setting button 18 (step 1).

  The control means 41 causes the electric blower 13 to operate in an operation mode corresponding to the operation of the setting button 18 by performing phase control of the electric blower 13 via the triac TR in accordance with an operation signal from the setting button 18.

  The negative pressure generated by the operation of the electric blower 13 acts on the hose body 15, the extension pipe 19 and the floor brush 20 through the dust collecting portion, whereby dust is sucked together with air from the suction port of the floor brush 20.

  At this time, the operator cleans the entire floor surface in the room by placing the floor brush 20 on the floor surface and changing the position of the floor brush 20 while reciprocating back and forth.

  Here, the motion detection means 44 detects the state of the gripping part 17 in real time by acceleration or the like (step 2).

  Then, the control means 41 determines whether or not the state of the gripping portion 17 detected by the motion detection means 44 is a state in which the gripping portion 17 is operated so that the floor brush 20 follows the forward direction, for example (step) 3).

  In step 3, when the control means 41 determines that the gripping portion 17 is operated so that the floor brush 20 is moved in the forward direction, the control means 41 is further detected by the motion detection means 44. The state of the gripping part 17 is, for example, a state in which the gripping part 17 is operated so that the floor brush 20 travels in either the left or right direction, in other words, whether the gripping part 17 is tilted left or right Is determined (step 4).

  In step 4, when the control means 41 determines that the gripping portion 17 is not tilted left and right, the control means turns the traveling wheels 23 and 24 through the motors 34 and 35 at the same rotational speed (same speed). Rotate forward at (rotational speed) (step 5) and return to step 2. As a result, the floor brush 20 travels straight along the forward direction.

  In step 4, when the control means 41 determines that the grip portion 17 is tilted to the left or right, the control means 41 indicates that the state of the grip portion 17 detected by the motion detection means 44 is, for example, a floor brush. It is determined whether or not the gripping portion 17 is being operated so as to move 20 to the left, in other words, whether or not the gripping portion 17 is tilted to the left (step 6).

  In step 6, when the control means 41 determines that the gripping portion 17 is tilted to the left side, the control means 41 sets the rotation speed (rotational speed) of one motor 34 (traveling wheel 23) to the other. In a state where it is relatively smaller than the rotational speed (rotational speed) of the motor 35 (traveling wheel 24) (the rotational speed (rotational speed) of the other motor 35 (traveling wheel 24) is set to one motor 34 (traveling wheel 23). These motors 34 and 35 (traveling wheels 23 and 24) are respectively rotated forward (step 7), and the process returns to step 2. As a result, the floor brush 20 travels so as to incline toward the left front.

  In Step 6, when the control means 41 determines that the gripping portion 17 is not tilted to the left (the gripping portion 17 is tilted to the right), the control means 41 24) with the rotational speed (rotational speed) of the motor 34 (running wheel 23) relatively smaller than the rotational speed (rotational speed) of the one motor 34 (running wheel 23). The motor 34 and 35 (traveling wheels 23 and 24) are each rotated forward (step 8) with the speed (relatively larger than the rotational speed (rotational speed) of the other motor 35 (traveling wheel 24)). ), Return to step 2. As a result, the floor brush 20 travels so as to incline toward the right front.

  On the other hand, when the control means 41 determines in step 3 that the gripping portion 17 is not operated so that the floor brush 20 is moved along the forward direction, the control means 41 further detects the movement detection means 44. Whether the gripping part 17 is in a state where the gripping part 17 is operated so that the floor brush 20 travels in either the left-right direction, in other words, whether the gripping part 17 is tilted to the left or right. Judgment is made (step 9).

  In step 9, when the control means 41 determines that the gripping portion 17 is not tilted left and right, the control means turns the traveling wheels 23 and 24 through the motors 34 and 35 at the same rotational speed (same speed). Reverse rotation is performed at the rotational speed (step 10), and the process returns to step 2. As a result, the floor brush 20 travels straight in the reverse direction.

  In step 9, when the control means 41 determines that the grip portion 17 is tilted to the left or right, the control means 41 indicates that the state of the grip portion 17 detected by the motion detection means 44 is, for example, a floor brush. It is determined whether or not the gripping portion 17 is being operated so that the vehicle 20 travels leftward, in other words, whether or not the gripping portion 17 is tilted to the left (step 11).

  In this step 11, when the control means 41 determines that the gripping portion 17 is tilted to the left side, the control means 41 sets the rotation speed (rotational speed) of one motor 34 (running wheel 23) to the other. In a state where it is relatively smaller than the rotational speed (rotational speed) of the motor 35 (traveling wheel 24) (the rotational speed (rotational speed) of the other motor 35 (traveling wheel 24) is set to one motor 34 (traveling wheel 23). These motors 34 and 35 (traveling wheels 23 and 24) are rotated in the reverse direction (step 12), and the process returns to step 2. As a result, the floor brush 20 travels so as to incline toward the left rear.

  In step 11, when the control means 41 determines that the gripping portion 17 is not inclined to the left side (inclined to the right side), the control means 41 determines that the other motor 35 (traveling wheel 24) rotates. In a state where the number (rotational speed) is relatively smaller than the rotational speed (rotational speed) of one motor 34 (running wheel 23) (the rotational speed (rotational speed) of one motor 34 (traveling wheel 23) is These motors 34 and 35 (traveling wheels 23 and 24) are rotated in the reverse direction (step 13), step 2 Return to. As a result, the floor brush 20 travels so as to incline toward the right rear.

  Note that, in Step 7, Step 8, Step 12 and Step 13, the difference in rotational speed (rotational speed) between the left and right motors 34 and 35 (traveling wheels 23 and 24) is the difference between the gripping portion 17 detected by the motion detecting means 44. It can be changed according to the magnitude of the inclination. That is, for example, when the inclination of the gripping portion 17 is relatively large, the difference in the rotation speed (rotational speed) of the motors 34 and 35 (traveling wheels 23 and 24) is relatively large, and the inclination of the gripping portion 17 is increased. In the case of a relatively small value, the difference in rotational speed (rotational speed) of the motors 34 and 35 (traveling wheels 23 and 24) is controlled to be relatively small, so that the operation of the gripping part 17 can be handled. Control can be made to change the inclination angle of the traveling direction of the floor brush 20.

  The air sucked from the suction port becomes intake air, passes through the extension pipe 19 and the hose body 15 together with dust, is sucked from the main body suction port 14 to the dust collecting part, and passes through this dust collecting part. , Contained dust is collected in the dust collecting section.

  The intake air from which dust has been collected is sucked into the electric blower 13 and cooled to the outside of the cleaner body 12 while cooling the electric blower 13 through the exhaust holes formed in the cleaner body 12. Exhausted.

  When the cleaning is completed, the operator operates the predetermined setting button 18 so that the control unit 41 stops driving the electric blower 13.

  As described above, according to the first embodiment, the control means 41 controls the driving of the running wheels 23 and 24 of the floor brush 20 in accordance with the state of the gripping part 17 detected by the motion detection means 44. Accordingly, the user can assist the traveling of the floor brush 20 on the floor surface only by slightly changing the state of the gripping portion 17, for example, the inclination, and the cleaning performance can be improved.

  Therefore, it is possible to suppress the load on the arm that grips the gripping portion 17 of the operator, and the cleaning work is facilitated.

  Specifically, the traveling wheels 23 and 24 are arranged on the left and right sides of the floor brush 20, and the rotational speeds of the left and right traveling wheels 23 and 24 are changed in accordance with the state of the gripping portion 17 detected by the motion detecting means 44, for example, the inclination. By doing so, the traveling direction of the floor brush 20 can be easily changed by only a slight operation of the gripping portion 17.

  Next, a second embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 1st Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the electric vacuum cleaner 11 of the second embodiment, the following steps 21 to 24 are controlled in place of Step 7, Step 8, Step 12 and Step 13 of the first embodiment.

  That is, when the control means 41 determines in step 6 that the gripping portion 17 is tilted to the left, the control means 41 stops one motor 34 (traveling wheel 23) and the other motor 35 ( Only the traveling wheel 24) is rotated forward (step 21), and the process returns to step 2. As a result, the floor brush 20 travels so as to incline toward the left front.

  In Step 6, when the control means 41 determines that the gripping part 17 is not tilted to the left (tilt to the right), the control means 41 stops the other motor 35 (traveling wheel 24). Thus, only one motor 34 (running wheel 23) is rotated forward (step 22), and the process returns to step 2. As a result, the floor brush 20 travels so as to incline toward the right front.

  Further, when the control means 41 determines in step 11 that the gripping portion 17 is tilted to the left, the control means 41 stops one motor 34 (traveling wheel 23) and the other motor 35 ( Only the traveling wheel 24) is reversely rotated (step 23), and the process returns to step 2. As a result, the floor brush 20 travels so as to incline toward the left rear.

  In step 11, when the control means 41 determines that the gripping part 17 is not tilted to the left (tilt to the right), the control means 41 stops the other motor 35 (traveling wheel 24). Then, only one motor 34 (traveling wheel 23) is reversely rotated (step 24), and the process returns to step 2. As a result, the floor brush 20 travels so as to incline toward the right rear.

  In step 21 to step 24, the rotational speed (rotational speed) of either of the left and right motors 34 and 35 to be driven can be changed according to the inclination of the gripping part 17 detected by the motion detection means 44. . That is, for example, when the inclination of the gripping portion 17 is relatively large, the rotational speed (rotational speed) of the left and right motors 34 and 35 (traveling wheels 23 and 24) to be driven is relatively increased, and the gripping portion When the inclination of 17 is relatively small, the gripping is achieved by controlling the rotational speed (rotational speed) of either of the left and right motors 34 and 35 (running wheels 23 and 24) to be relatively small. Corresponding to the operation of the section 17, the inclination angle in the traveling direction of the floor brush 20 can be changed.

  As described above, the control means 41 controls the driving of the running wheels 23 and 24 of the floor brush 20 in accordance with the state of the gripping part 17 detected by the motion detection means 44, and is the same as in the first embodiment. By having the configuration, the same operational effects as those of the first embodiment can be obtained.

  Also, traveling wheels 23 and 24 are arranged on the left and right sides of the floor brush 20, and the state of the gripping part 17 detected by the motion detecting means 44, for example, the rotation of one of the left and right traveling wheels 23 and 24 corresponding to the inclination. By stopping, the traveling direction of the floor brush 20 can be changed more easily and reliably with only a slight operation of the gripping portion 17.

  Next, a third embodiment will be described with reference to FIGS. In addition, about the structure and effect | action similar to said each embodiment, the same code | symbol is attached | subjected and description is abbreviate | omitted.

  In FIG. 6, 51 indicates a so-called upright type vacuum cleaner, and this vacuum cleaner 51 captures dust sucked together with the intake air generated by driving the electric blower 53 housed in the vacuum cleaner body 52. The dust is collected in the dust collecting unit 54.

  The vacuum cleaner main body 52 is formed in a longitudinal shape in the vertical direction. The electric blower 53 is accommodated in the lower side, and a mounting portion 56 to which the dust collecting portion 54 can be attached and detached is recessed in the front portion. ing. Further, a main body switch 57 for driving the electric blower 53 is provided on one side of the upper side of the cleaner body 52. And the floor brush 58 as a suction inlet is connected to the lower part of the cleaner body 52 so that attachment or detachment is possible. In addition, a large number of exhaust holes (not shown) are formed in the rear part of the cleaner body 52.

  The electric blower 53 communicates with the attachment portion 56 on the suction side. Furthermore, a pipe part 59 is detachably attached to the upper front side of the cleaner body 52. In the electric blower 53, as shown in FIG. 5, a series circuit with the triac TR is electrically connected to a commercial AC power source e.

  6 is also referred to as a dust collection cup, and in a state of being attached to the attachment portion 56, the front side of the attachment portion 56 is hermetically closed against the outside of the cleaner body 52. It is configured.

  The main body switch 57 is electrically connected to the control means 41 as shown in FIG. The main body switch 57 is set to turn on / off the electric blower 53 in the present embodiment, but may switch the operation mode of the electric blower 53, for example.

  Moreover, the floor brush 58 shown in FIG. 6 has a case body 61 as a suction port body and a connection pipe (not shown) connected to the case body 61 so as to be rotatable.

  The case body 61 is formed in a longitudinal shape in the left-right width direction, that is, in a horizontally long shape. In addition, a suction port (not shown) is formed in the lower portion of the case body 61 facing the floor surface, and a rotary cleaning body (rotary brush) is rotatably positioned in the suction port. This rotary cleaning body is rotationally driven by a driving means (not shown) attached in the case body 61. Further, on the rear portion of the case body 61 and on both sides of the connecting pipe, that is, on the left and right sides, traveling wheels 64 and 65 as one and the other driving wheels that enable the floor brush 58 to travel on the floor surface together with the cleaner body 52. Is rotatably mounted. A follower wheel (not shown) is rotatably attached to the front portion of the lower portion of the case body 61.

  The traveling wheels 64 and 65 can have any configuration. For example, the traveling wheels 64 and 65 are disposed on the left and right sides of the case body 61 so as to be rotatable along the front-rear direction, and are formed larger in diameter than the driven wheels. ing. That is, the traveling wheels 64 and 65 are disposed at positions symmetrical to each other with respect to the lateral width direction of the case body 61. Further, each of the traveling wheels 64 and 65 is configured to be rotationally driven by motors 67 and 68 as one and the other driving units disposed inside the case body 61, respectively. As shown in FIG. 5, the motors 67 and 68 are supplied with power from the DC power source 42 and are individually controlled in rotation direction and rotation speed (rotation speed) by the control means 41.

  Further, the connecting pipe is connected to the case body 61 shown in FIG. 6 so as to be rotatable in the vertical direction and the circumferential direction, for example. Further, the connecting pipe is integrally connected to the lower end portion of the cleaner body 52, and is configured to communicate with the attachment portion 56 of the cleaner body 52. Accordingly, the floor brush 58 is configured to support the cleaner body 52 with respect to the floor surface.

  On the other hand, the pipe part 59 includes an extension pipe 71 that is extendable and detachable from the upper part of the cleaner body 52, and a hose body 72 that is detachable from the extension pipe 71. And this pipe part 59 is used when cleaning high positions other than the floor surface. When the extension pipe 71 is removed from the cleaner body 52, or the hose body 72 is removed from the extension pipe 71. Only when it is possible to suck dust from the tip side.

  The extension pipe 71 is formed in a substantially cylindrical shape with a rigid member such as a synthetic resin, for example. The extension pipe 71 extends in the up-down direction, that is, in the longitudinal direction of the cleaner body 52 with the tip side connected to the cleaner body 52. Is located.

  The hose body 72 is formed in an elongated substantially cylindrical shape that is flexible and can be bent. Further, a hand operating portion 74 is formed on the extension pipe 71 side which is the upstream side of the hose body 72, and the downstream side is connected to the rear side of the extension pipe 71 on the upper part of the cleaner body 52 to be connected to the electric blower. It communicates with 53 suction side.

  The hand operating portion 74 is formed with a gripping portion 76 that protrudes toward the hose body 72 side. The grip 76 is gripped by an operator when cleaning, and is positioned on the front side of the pipe 59 (frontward of the running wheels 64 and 65) with the pipe 59 connected to the cleaner body 52. The floor brush 58 can be operated integrally with the vacuum cleaner main body 52 via the extension pipe 71. In addition, the gripping unit 76 can detect states such as motion, tilt, and acceleration by the motion detection means 44.

  Similarly to the controls shown in the above embodiments, the control means 41 controls the driving of the traveling wheels 64 and 65 of the floor brush 58 in accordance with the state of the gripping portion 76 detected by the motion detection means 44. As a result, the user can assist the running of the floor brush 58 on the floor surface only by slightly changing the state of the gripping portion 76, for example, and can improve the cleaning performance. Can be played.

  In particular, in the case of the upright type vacuum cleaner 51, the floor brush 58 is operated by the grip portion 76 integrally with the vacuum cleaner body 52 that houses the relatively large electric blower 53, so that the canister type vacuum cleaner As compared with the above, the load applied to the arm that grips the grip portion 76 of the operator is relatively large. For this reason, even if it is the upright type vacuum cleaner 51, it is added to an operator's arm by assisting the driving | running | working wheel 64,65 with the driving | running | working wheel 64,65 by changing the state of the holding part 76 slightly. The load is suppressed and cleaning work becomes easier.

  Further, since the traveling wheels 64 and 65 are rear wheels having a diameter larger than that of the driven wheel on the front side of the floor brush 58, compared to the case where the traveling wheels 64 and 65 are arranged on the front side of the floor brush 58, the burden on the operator's hand is further increased. Less.

  In the third embodiment, the grip portion 76 is formed on the tube portion 59, but may be formed directly on the cleaner body 52, for example. Also in this case, the state of the gripping portion 76, that is, the inclination of the gripping portion 76 (the vacuum cleaner main body 52) is detected by the motion detection means 44, and control is performed according to the state of the gripping portion 76 detected by the motion detection means 44. The means 41 controls the driving of the running wheels 64 and 65 of the floor brush 58, so that the same effect can be obtained.

  In each of the above embodiments, an arbitrary number of driving wheels can be arranged at an arbitrary position. For example, a plurality of driving wheels may be provided on each of the left and right sides of the case body of the suction port body. That is, for example, a configuration in which the driving wheels are respectively arranged on the left and right sides of the case body may be employed.

  Furthermore, the details of the vacuum cleaners 11 and 51 are not limited to the above configuration.

11, 51 vacuum cleaner
12, 52 Vacuum cleaner body
13, 53 Electric blower
17, 76 Grip part
20, 58 Floor brush as suction port
23, 24, 64, 65 Driving wheels as drive wheels
41 Control means
44 behavior detection means

Claims (3)

A vacuum cleaner body containing an electric blower,
A suction opening that includes driving wheels for traveling the surface to be cleaned, and communicates with the suction side of the electric blower;
A gripping part for operating the running direction on the surface to be cleaned of this suction port,
An operation detecting means which is an acceleration sensor fixed to the gripping part and detects the right and left inclination of the gripping part by acceleration;
A vacuum cleaner comprising: control means for controlling the drive of the drive wheels so that the suction port body travels in the direction of inclination of the gripping part detected by the motion detection means . The drive wheels are arranged on the left and right of the suction port body,
When the operation detecting means detects that the grip portion is tilted to the left side, the control means makes the rotational speed of the left driving wheel smaller than the rotational speed of the right driving wheel, and the motion detecting means wherein when the grip portion has detected that are inclined in the right, electrical of claim 1, wherein that said to be smaller than the rotational speed of the driving wheel on the left a rotation speed of the driving wheel on the right by Vacuum cleaner. The drive wheels are arranged on the left and right of the suction port body,
When the control means detects that the gripping part is tilted to the left by the motion detection means, the control means stops the left drive wheel and detects that the gripping part is tilted to the right by the motion detection means. It was when the vacuum cleaner according to claim 1 wherein characterized in that stops the drive wheel on the right.

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