JP2010273873A - Cleaning device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cleaning device in which cleaning workability is enhanced. <P>SOLUTION: Relative and reciprocating moving of a distal end side extension tubular part 25 is reversed by switching the driving of an extending and contracting control section 49 by the distal end side extension tubular part 25 reciprocally moving to a predetermined position relative to a proximal end side extension tubular part 26. The relative and reciprocal moving of the distal end side extension tubular part 25 to the proximal end side extension tubular part 26 is alternately switched without moving the grip part 21 by an operator and a floor brush 19 of the distal end side extension tubular part 25 side automatically reciprocally moves on a floor face F once the distal end side extension tubular part 25 is relatively moved forward or backward. The cleaning workability is enhanced because the reciprocal operation of the grip part 21 is not needed. <P>COPYRIGHT: (C)2011,JPO&INPIT

Description

  The present invention relates to a cleaning device that performs cleaning by running a cleaning unit on a surface to be cleaned.

  2. Description of the Related Art Conventionally, an electric vacuum cleaner as this type of cleaning device includes a vacuum cleaner body that houses an electric blower and a pipe portion that is connected to the vacuum cleaner body. This pipe part is connected to the front end side of the hose body provided with a connection pipe part on the base end side that communicates with the suction side of the electric blower through the main body dust collection chamber by connection to the cleaner body. And a floor brush which is a suction port body as a cleaning part connected to the distal end side of the extension pipe. And an operator cleans by grasping the grasping part formed in the front end side of a hose body, and repeatedly running a floor brush back and forth on a floor surface via an extension pipe.

  However, since the weight of the hose body is added to the gripping portion, if the gripping portion is gripped and operated back and forth, the burden on the operator increases. Therefore, the length of the hose body is shortened and the weight is reduced by forming the grip portion in a long shape and changing the attachment position with respect to the extension pipe so that the height of the grip portion can be changed. A configuration with improved workability is known (see, for example, Patent Document 1).

JP 2003-219995 A (page 2-4, FIG. 1)

  However, in the above-described cleaning device, the operator must manually change the position of the gripping portion, so that it is not necessarily easy to use, and the front-back operation of the gripping portion for running the floor brush back and forth is not There is a problem that improvement in workability is not sufficient, such as not being solved.

  This invention is made | formed in view of such a point, and it aims at providing the cleaning apparatus which improved cleaning workability | operativity.

  The present invention is provided on the side of a longitudinal moving portion that can reciprocate relative to a fixed portion that is fixed when the grip portion is gripped by an operator, and enables traveling on a surface to be cleaned. A cleaning unit that has a wheel and can move on the surface to be cleaned in response to a relative reciprocation of the moving unit with respect to the fixed unit, and controls the relative reciprocation of the moving unit, and the moving unit moves to a predetermined position. And a reciprocation controller that reverses the relative reciprocation of the moving unit by switching the drive.

  According to the present invention, the drive of the reciprocation controller is switched by reciprocating the moving part relative to the fixed part and moving to a predetermined position, and the relative reciprocation of the moving part is reversed. Thus, once the moving part is moved forward or backward relatively, the reciprocating movement of the moving part relative to the fixed part is alternately switched without moving the gripping part, and the moving part is moved to the moving part side. Since the provided cleaning part automatically reciprocates on the surface to be cleaned, the reciprocating operation of the grip part becomes unnecessary, and the cleaning workability is improved.

The cleaning apparatus of the 1st Embodiment of this invention is shown, (a1) is a side view which shows typically the state of the holding | grip part vicinity at the time of the movement of a moving part, (a2) is the time of the return of a movement part Side view schematically showing the state near the gripping part, (b1) is a side view schematically showing the state of the extension pipe and the cleaning part when the moving part moves forward, and (b2) is the state when the moving part is moved backward It is a side view which shows typically the state of an extension pipe and a cleaning part. It is a top view which shows a part of cleaning part of a cleaning apparatus same as the above. It is a perspective view of a cleaning apparatus same as the above. The cleaning apparatus of the 2nd Embodiment of this invention is shown, (a1) is a side view which shows typically the state of the holding part vicinity at the time of rotation to one side of a holding part, (a2) is the other side of a holding part (B1) is a side view schematically showing the state of the vicinity of the gripping part when rotating to the side, (b1) is a side view schematically showing the state of the moving part and the cleaning part when rotating to one side of the gripping part, ) Is a side view schematically showing the state of the moving unit and the cleaning unit when the gripping unit is rotated to the other side. The cleaning apparatus of the 3rd Embodiment of this invention is shown, (a1) is a side view which shows typically the state of the holding | grip part vicinity at the time of the movement of a moving part, (a2) is the time at the time of a return of a movement part Side view schematically showing the state near the gripping part, (b1) is a side view schematically showing the state of the extension pipe and the cleaning part when the moving part moves forward, and (b2) is the state when the moving part is moved backward It is a side view which shows typically the state of an extension pipe and a cleaning part. The cleaning apparatus of the 4th Embodiment of this invention is shown, (a1) is a side view which shows typically the state of the holding | grip part vicinity at the time of the movement of a moving part, (a2) is at the time of the return of a movement part Side view schematically showing the vicinity of the gripping part, (b1) is a side view schematically showing the state of the cleaning part when the moving part moves forward, and (b2) is the cleaning part when the moving part is returning. It is a side view which shows a state typically. It is a top view which shows a part of cleaning part of a cleaning apparatus same as the above. It is a perspective view of a cleaning apparatus same as the above. The cleaning apparatus of the 5th Embodiment of this invention is shown, (a1) is a side view which shows typically the state of the holding part vicinity at the time of rotation to one side of a holding part, (a2) is the other side of a holding part (B1) is a side view schematically showing the state of the vicinity of the gripping part when rotating to the side, (b1) is a side view schematically showing the state of the telescopic part and the cleaning part when rotating to one side of the gripping part, ) Is a side view schematically showing the state of the expansion / contraction part and the cleaning part when the gripping part is rotated to the other side. The cleaning apparatus of the 6th Embodiment of this invention is shown, (a1) is the side view which shows typically the state of the holding part vicinity at the time of a moving part's forward movement, (a2) is the time at the time of a moving part's backward movement Side view schematically showing the vicinity of the gripping part, (b1) is a side view schematically showing the state of the cleaning part when the moving part moves forward, and (b2) is the cleaning part when the moving part is returning. It is a side view which shows a state typically.

  Hereinafter, the configuration of the first embodiment of the present invention will be described with reference to FIGS.

  In FIG. 3, reference numeral 11 denotes a so-called canister-type vacuum cleaner as a cleaning device. The vacuum cleaner 11 has a pipe portion 12 and a vacuum cleaner body 13 to which the pipe portion 12 is detachably connected. is doing.

  The pipe part 12 is provided on the distal end side of the hose body 16, the connecting pipe part 15 connected to the cleaner body 13, the flexible hose body 16 communicating with the distal end side of the connecting pipe part 15. The hand-operated portion 17 is connected to the distal end side of the extension tube 18 and the elongated extension tube 18 which is a telescopic portion as a shaft portion detachably connected to the distal end side of the hand-operated portion 17. And a floor brush 19 that is a suction port body as a cleaning part. In addition, the pipe portion 12 is electrically connected to the cleaner body 13 side through a wiring (not shown).

  The hand operating unit 17 has a gripping part 21 that is gripped by an operator during cleaning and protrudes toward the hose body 16, and the gripping part 21 is provided with a plurality of setting buttons 22 for operation.

  The extension tube 18 is provided with a longitudinal cylindrical distal end side (upstream side) extension tube portion 25 which is a moving extension tube as a moving portion on the distal end side which is one end side, that is, the upstream side, and a proximal end which is the other end side. On the side, that is, on the downstream side, an elongated cylindrical base end side (downstream side) extension pipe portion 26 that is a fixed extension pipe as a fixing portion is provided.

  The distal end extension tube portion 25 has a floor brush 19 detachably connected to the distal end portion which is one end portion, and the proximal end side which is the other end side moves (slids) relative to the proximal end extension tube portion 26. ) Inserted as possible. Further, as shown in FIG. 1, microswitches 28 and 29 as switching means are attached to the base end side inserted into the base end side extension pipe portion 26 of the tip end side extension pipe portion 25.

  These microswitches 28 and 29 include main body portions 28a and 29a fixed to, for example, the upper portion of the distal end side extension tube portion 25, and movable portions 28b and 29b that movably project from the main body portions 28a and 29a in an arm shape. It is a normally open switch. Also, one microswitch 28 is located in front of the other microswitch 29. Furthermore, one movable part 28b has a front end side protruding forward from the rear side of one main body part 28a, and the other movable part 29b has a front end side protruding rearward from the front side of the other main body part 29a. . These movable parts 28b and 29b are arranged in non-contact with the inner peripheral surface of the proximal end side extension pipe part 26.

  The proximal end extension tube portion 26 has a longer dimension than the distal end extension tube portion 25. In addition, the distal end portion of the hand operating portion 17 is detachably connected to the proximal end portion of the proximal end side extension pipe portion 26. In other words, the proximal-side extension pipe part 26 is integrated with the hand operation part 17, that is, the grip part 21 in a state of being connected to the hand operation part 17. In other words, the gripping part 21 is located on the base end side extension pipe part 26 side, and the base end side extension pipe part 26 is fixed together with the gripping part 21 when the gripping part 21 is gripped by the operator. . Further, on the inner peripheral side of the base end side extension pipe part 26, a projection part 30 as a switching operation part protrudes in the central axis direction at a position facing the micro switches 28 and 29 of the tip side extension pipe part 25. Is formed. The protrusion 30 switches the microswitches 28 and 29 on and off by contacting the movable parts 28b and 29b.

  As shown in FIG. 3, the floor brush 19 includes a horizontally long case body 33 and a connecting pipe 34 connected to the case body 33.

  The case body 33 includes a lower case 36 whose upper side is open, an upper case 37 covering the upper side of the lower case 36, a bumper 38 sandwiched between the lower case 36 and the upper case 37, and the floor brush 19. Traveling wheels 39a and 39b that enable traveling on a floor surface F (FIG. 1) as a surface to be cleaned are provided.

  In the lower case 36, a horizontally long suction port 41 is formed facing the floor F (FIG. 1), and a rotary brush 42 as a rotary cleaning body is rotatably attached to the suction port 41. ing. Further, at the rear portion of the lower case 36, a mounted portion 43 is attached to which traveling wheels 39a and 39b that enable the floor brush 19 to travel on the floor surface F (FIG. 1) are rotatably mounted on both sides. Is formed.

  The rotating brush 42 is configured by a plurality of cleaning members 42b such as brush bristles or blades being spirally attached around a rotating shaft 42a. Further, the rotary brush 42 is driven to rotate by a drive motor 45 as a drive source, so that dust that has entered the floor surface F (FIG. 1) is scraped out by the cleaning member 42b or the floor surface F (FIG. 1) is removed. It can be polished and cleaned. The rotating brush 42 may be rotationally driven by a driving source such as an air turbine, for example, or may have no driving source and rotate by contact with the floor surface F (FIG. 1). .

  The drive motor 45 is rotationally driven by a control circuit 46 serving as control means disposed in the case body 33. Further, the rotational force of the drive motor 45 is transmitted to the rotating brush 42 via the belt B.

  As shown in FIG. 2, the traveling wheels 39a and 39b are driven to rotate by motors 47a and 47b as driving means disposed in the attached portion 43, respectively. The rotation drive of these motors 47a and 47b is controlled by the control circuit 46, for example.

  The control circuit 46 is electrically connected to the micro switches 28 and 29 (FIG. 1) and the cleaner body 13 (FIG. 3) side. The control circuit 46 controls the rotation and stop of the drive motor 45 by operating the predetermined setting button 22, and the motors 47a and 47b (traveling wheels 39a and 39b) according to the on / off of the micro switches 28 and 29. Control the direction of rotation. Then, the distal end side extension pipe portion 25 is provided by the control circuit 46, the base end side extension pipe portion 26 (FIG. 1), the microswitches 28 and 29 (FIG. 1), the projection portion 30 (FIG. 1), the motors 47a and 47b, and the like. The expansion / contraction control unit 49 is configured as a reciprocation control unit that reverses reciprocation of the distal end side extension tube portion 25, that is, expansion / contraction of the extension tube 18 when the drive is reciprocated and moved to a predetermined position. .

  Further, the connection pipe 34 communicates with the suction port 41 and is attachable to and detachable from the distal end side of the extension pipe 18. Further, the connection pipe 34 is connected to the case body 33 so as to be rotatable in the vertical direction and the circumferential direction, for example.

  Moreover, the electric blower 51 is accommodated in the cleaner main body 13 shown in FIG. The electric blower 51 has a suction side connected to a main body dust collection chamber 52 partitioned on the front side in the cleaner body 13. Furthermore, a main body lid 53 that can open and close the main body dust collecting chamber 52 is provided on the upper portion of the cleaner body 13. In addition, a main body suction port 54 to which the proximal end side of the connecting pipe portion 15 of the pipe portion 12 is connected is formed in the front portion of the vacuum cleaner main body 13, and the main body suction port 54 is formed in the main body dust collection chamber 52. Communicate. The main body suction port 54 may be formed in the main body lid 53 or the like. In addition, a main body control circuit (not shown) that switches the operation mode of the electric blower 51 in accordance with the setting of the setting button 22 is disposed in the cleaner main body 13. A power supply unit (not shown) that supplies power to the electric blower 51, the main body control circuit, and the like is disposed in the cleaner body 13. This power supply unit may be an internal power supply such as a secondary battery, or may be a cord reel device for taking power from an external commercial AC power supply. Further, the cleaner body 13 is formed with a number of exhaust holes (not shown).

  In the main body dust collecting chamber 52, a dust collecting part such as a filter, a dust collecting bag or a dust collecting cup is detachable.

  Next, the operation of the first embodiment will be described.

  At the time of cleaning, the operator grips the grip portion 21 and operates the setting button 22, whereby the main body control circuit operates the electric blower 51 in the operation mode set by the setting button 22. At the same time, the control circuit 46 of the floor brush 19 drives the motors 47a and 47b to rotate in the same direction at substantially the same speed (same rotation speed), so that the traveling wheels 39a and 39b are substantially directed in the same direction, for example, in the forward direction. Rotates at the same speed. By this rotation, the floor brush 19 moves straight forward on the floor surface F.

  At this time, as shown in FIG. 1 (b1), the distal end side extension pipe portion 25 connected to the floor brush 19 moves forward (moves forward) integrally with the floor brush 19, whereas the proximal end In the side extension pipe part 26, the grip part 21 is gripped by an operator, so that the distal end side extension pipe part 25 protrudes from the proximal end side extension pipe part 26 and the extension pipe 18 extends. Note that the gripping portion 21 changes so that the inclination angle of the extension tube 18 with respect to the floor surface F becomes smaller because the extension tube 18 is elongated while the floor brush 19 remains in contact with the floor surface F. Although it moves slightly downward, the position in the front-rear direction hardly changes.

  Then, by extending the extension tube 18, that is, by moving the distal end side extension tube portion 25 forward, as shown in FIG. 1 (a1), the other micro switch 29 is connected to the proximal end side extension tube together with the distal end side extension tube portion 25. The protrusion 30 moves forward relative to the protrusion 30 formed on the portion 26, and the protrusion 30 is at the first predetermined position where the distal end side extension tube portion 25 protrudes maximum with respect to the proximal end side extension tube portion 26. Contacts the movable part 29b of the microswitch 29, and the microswitch 29 is turned on.

  When the micro switch 29 is turned on, the control circuit 46 reverses the rotation direction of the motors 47a and 47b, that is, the traveling wheels 39a and 39b, and rotates the traveling wheels 39a at approximately the same speed in the reversed directions. , 39b rotate rearward at substantially the same speed. By this rotation, the floor brush 19 goes straight backward on the floor surface F.

  At this time, as shown in FIG. 1 (b2), the distal end side extension pipe portion 25 connected to the floor brush 19 moves backward (returns) integrally with the floor brush 19, whereas the proximal end As the side extension pipe part 26 is gripped by the operator, the proximal end side of the distal end side extension pipe part 25 is inserted into the base end side extension pipe part 26 and the extension pipe 18 contracts. Note that the gripping portion 21 is changed so that the inclination angle of the extension pipe 18 with respect to the floor surface F is increased because the extension pipe 18 is contracted and shortened while the floor brush 19 remains in contact with the floor surface F. Although it moves slightly upward, the position in the front-rear direction hardly changes.

  Then, as shown in FIG. 1 (a2), one of the microswitches 28 is formed on the proximal end side extension pipe portion 26 together with the front end side extension pipe portion 25 by the rearward movement of the distal end side extension pipe portion 25. The protrusion 30 moves the micro switch 28 at the second predetermined position where the distal end side extension tube portion 25 is inserted into the proximal end side extension tube portion 26 at the maximum. The micro switch 28 is turned on in contact with the part 28b.

  When the micro switch 28 is turned on, the control circuit 46 reverses the rotation direction of the motors 47a and 47b, that is, the traveling wheels 39a and 39b, and rotates the traveling wheels 39a at approximately the same speed in the reversed direction. , 39b again rotate forward at substantially the same speed. By this rotation, the floor brush 19 moves straight forward on the floor surface F.

  That is, the floor brush 19 is operated by the operator to move the gripping part 21 back and forth by the microswitches 28 and 29 being alternately turned on by the reciprocating motion of the distal end side extension pipe part 25, in other words, by extension and contraction of the extension pipe 18. It automatically reciprocates back and forth on the floor surface F without doing so. Therefore, the reciprocating stroke of the distal end side extension pipe portion 25, in other words, the expansion / contraction stroke of the extension pipe 18 (reciprocating stroke of the floor brush 19) is defined by the distance from the protrusion 30 to the microswitches 28 and 29.

  Then, dust on the floor surface F is sucked together with air from the suction port 41 (FIG. 2) due to the negative pressure acting on the floor surface F from the suction port 41 (FIG. 2). Note that, depending on the type of the floor surface F, the worker may appropriately rotate the rotary brush 42 via the drive motor 45 when cleaning the floor surface F such as a carpet.

  The air sucked from the suction port 41 (FIG. 2) becomes a suction wind, and together with the dust, the connection pipe 34 to the extension pipe 18, the hand operating part 17, the hose body 16, the connection pipe part 15 and the main body suction port 54 shown in FIG. It passes through the main body dust collection chamber 52 and is sucked into the main body dust collection chamber 52, and dust is collected when passing through the main body dust collection chamber 52.

  Thereafter, the suction air is sucked into the electric blower 51, passes through the electric blower 51 while cooling, becomes exhaust air, and is exhausted to the outside through an exhaust hole (not shown) of the cleaner body 13.

  When the cleaning is completed, the operator performs an operation of stopping the electric blower 51 with the setting button 22. At this time, the main body control circuit stops driving the electric blower 51, and the control circuit 46 of the floor brush 19 stops the rotation of the motors 47a and 47b. The control circuit 46 may stop the driving of the motors 47a and 47b simultaneously with the operation of stopping the operation of the electric vacuum cleaner 11, or after the operation of stopping the operation of the electric vacuum cleaner 11, the motor 47a and 47b are moved backward. Alternatively, the front side extension pipe part 25 is rotated forward for a certain time to move the distal end side extension pipe part 25 to a predetermined storage position with respect to the base end side extension pipe part 26, and the extension pipe 18 is brought into a predetermined expansion and contraction state. 47a and 47b may be stopped.

  As described above, according to the first embodiment, the distal end side extension tube portion 25 reciprocates relative to the proximal end side extension tube portion 26 to move to a predetermined position (first predetermined position or first position). 2), in other words, when the extension pipe 18 expands and contracts, the drive of the expansion / contraction control section 49 is switched, and the relative reciprocation of the distal end side extension pipe section 25, that is, the extension pipe 18 By reversing the expansion and contraction, the distal end extension pipe part 25 is moved forward or backward relatively once by extending the extension pipe 18 by temporarily starting the electric blower 51 (the vacuum cleaner 11) by the setting button 22. (Or contraction), the reciprocating movement of the distal end side extension pipe part 25 relative to the base end side extension pipe part 26 is alternately switched without the operator moving the grip part 21, and the extension pipe 18 is expanded or contracted. Are alternately switched, and the floor brush 19 on the distal end side extension pipe part 25 side is automatically on the floor surface F. Therefore, the reciprocating operation of the grip portion 21 is not necessary, and the cleaning workability is improved.

  Specifically, due to the expansion and contraction of the extension pipe 18, the proximal end side of the distal end side extension pipe part 25 relatively reciprocates within the proximal end side extension pipe part 26, and the micro switches 28 and 29 are alternately turned on and off. By turning the microswitches 28 and 29 on and off, the reciprocating motion of the distal end side extension tube portion 25, that is, the extension and contraction of the extension tube 18, is reversed, so that the operator can move the hand holding the grip portion 21 back and forth along with the grip portion 21. The floor brush 19 automatically travels back and forth on the floor surface F as the distal end side extension pipe part 25 moves relative to and reciprocates (extension and contraction of the extension pipe 18) without being moved. Can be minimal.

  In addition, when the electric blower 51 (the vacuum cleaner 11) is activated by operating the setting button 22, the reciprocating motion of the distal end side extension pipe part 25 (extension and contraction of the extension pipe 18) is started, so that the user Therefore, the back and forth movement of the floor brush 19 can be started at a timing close to the intended timing, and the cleaning workability can be further improved.

  Further, the microswitches 28 and 29 are arranged at positions that are not exposed to the outside of the distal end side extension tube portion 25 and the proximal end side extension tube portion 26 within a range in which the distal end side extension tube portion 25 relatively reciprocates. Therefore, it is possible to prevent the appearance from being deteriorated and to prevent the micro switches 28 and 29 from being damaged.

  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 second embodiment, in the first embodiment, the grip portion 21 of the hand operation portion 17 is formed separately from the hand operation portion main body 61. It is configured to be rotatable in the circumferential direction, that is, in a direction intersecting with a relative movement direction of the distal end side extension pipe part 25 with respect to the base side extension pipe part 26 (extension direction of the extension pipe 18). is there.

  The hand operating section main body 61 has a circular cross section. Further, the end operation unit main body 61 is inserted into the gripping portion 21 at the end side. Further, micro switches 64 and 65 as turning switching portions are attached to the outer peripheral surface of the hand operating portion main body 61.

  These microswitches 64 and 65 are normally open provided with main body portions 64a and 65a fixed to the hand operating portion main body 61 and movable portions 64b and 65b movably projecting from the main body portions 64a and 65a in an arm shape. Switch. Further, the micro switches 64 and 65 are attached to one side and the other side in the rotation direction of the gripping part 21, that is, at positions separated from each other on the left and right sides, and on the inner peripheral side of the gripping part 21. Further, the left movable portion 64b in FIG. 4 protrudes leftward from the main body 64a, and the right movable portion 65b in FIG. 4 protrudes rightward from the main body 65a. Yes. These movable parts 64b and 65b are arranged in non-contact with the inner peripheral surface of the grip part 21. The micro switches 64 and 65 are electrically connected to the control circuit 46 of the floor brush 19.

  The grip portion 21 is formed in a substantially bottomed cylindrical shape, and is urged toward the neutral position in the rotational direction by a biasing means such as a spring with respect to the hand operating portion main body 61. This urging means is not an essential configuration. Further, on the inner peripheral side of the gripping portion 21, a protrusion 67 as a turning switching operation portion is formed to protrude in the central axis direction at a position facing the micro switches 64 and 65. The protrusion 67 switches the microswitches 64 and 65 on and off by contacting the movable parts 64b and 65b. The floor brush 19 is controlled by controlling the rotation of the traveling wheels 39a and 39b in accordance with the rotation direction of the gripping portion 21 by the control circuit 46, the micro switches 64 and 65, the protrusion 67, and the motors 47a and 47b. The turning control unit 68 is configured to turn the vehicle.

  That is, when the operator holding the gripping portion 21 twists the gripping portion 21 with respect to the hand operating portion main body 61, for example, to the left side as shown in FIG. The protrusion 67 moves to the left by the rotation of the gripping part 21, contacts the movable part 64b of the microswitch 64 at a position moved by a predetermined angle, and turns on the microswitch 64. By turning on the micro switch 64, the control circuit 46 reduces the rotation speed of the motor 47a, stops the motor 47a, or reverses the rotation direction of the motor 47a, as shown in FIG. 4 (b1). The floor brush 19 turns to the left.

  On the other hand, when the operator holding the gripping portion 21 twists the gripping portion 21 to the right side of the hand operating portion main body 61 as shown in FIG. 67 moves to the right, contacts the movable part 65b of the micro switch 65 at a position moved by a predetermined angle, and turns on the micro switch 65. By turning on the micro switch 65, the control circuit 46 decreases the rotation speed of the motor 47b, stops the motor 47b, or reverses the rotation direction of the motor 47b, as shown in FIG. 4 (b2). In addition, the floor brush 19 turns to the right.

  When the operator loosens the force in the twisting direction on the gripping part 21, the gripping part 21 is rotated in the opposite direction to the twisting direction with respect to the hand operating part main body 61 by the biasing means, to the neutral position. And return.

  As described above, the grip portion 21 that can be rotated in the left-right direction intersecting the relative movement direction of the distal end side extension tube portion 25 relative to the proximal end side extension tube portion 26 is provided, and the rotation of the grip portion 21 is provided. Corresponding to the direction, the turning control unit 68 controls the rotation of the motors 47a and 47b, that is, the traveling wheels 39a and 39b, thereby causing the floor brush 19 to turn on the floor surface F. The floor brush 19 can be easily swung only by the twisting operation of the gripping portion 21 without moving the floor brush 19 together with the extension pipe 18 to the left or right, and the floor brush 19 can be operated with less movement. This makes it possible to improve the cleaning workability.

  In the second embodiment, the twisting direction of the gripping part 21 and the turning direction of the floor brush 19 do not necessarily have to coincide with each other. That is, for example, when the grip portion 21 is twisted to the left (right side) with respect to the hand operation unit main body 61, the floor brush 19 may be made to correspond and turn to the right (left side). Further, the turning direction of the floor brush 19 corresponding to the twisting direction of the grip portion 21 may be switched between when the floor brush 19 moves forward and when the floor brush 19 moves backward.

  Alternatively, the microswitches 64 and 65 may be attached to the grip portion 21 and the protrusion 67 may be formed on the hand operation portion main body 61.

  Further, a plurality of protrusions 67 may be formed corresponding to the micro switches 64 and 65.

  In each of the above embodiments, the microswitches 28 and 29 may be attached to the proximal extension tube portion 26, and the protrusion 30 may be formed on the distal extension tube portion 25. Also, the distal extension tube portion 25 may be formed. Alternatively, the base end side of the base end side extension pipe portion 26 may be inserted into the base end side.

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

  In the third embodiment, instead of the grip portion 21 of the first embodiment, a curved portion 71 protruding from the hand operating portion 17 and moving (sliding) along the curved portion 71. It is provided with a grip portion 72 that is attached in a possible manner.

  The curved portion 71 is formed along the front-rear direction and is curved in an arc shape when viewed from the side. That is, the bending portion 71 is bent along the vertical direction that is a direction intersecting with the expansion / contraction direction of the extension tube 18 that is a relative movement direction of the distal end side extension tube portion 25 with respect to the proximal end side extension tube portion 26. is doing. The curved shape of the curved portion 71 may be an elliptical shape close to a circle as long as it is substantially circular. In addition, microswitches 28 and 29 are attached to positions separated from the inner peripheral side of the gripping portion 72 outside the bending portion 71. Further, a setting button 22 is arranged on the upper portion of the bending portion 71.

  The grip portion 72 is formed in a substantially cylindrical shape that is curved in an arc shape along the curved portion 71, and the curved portion 71 is inserted therein. Therefore, the gripping portion 72 can move (slide) along the curved shape on the rear side of the curved portion 71. Further, on the inner peripheral side of the grip portion 72, a protrusion 30 is formed at a position facing the microswitches 28 and 29.

  When cleaning, the operator grips the grip portion 72 and operates the setting button 22 to activate the electric blower 51 by the main body control circuit, and the motors 47a and 47b are controlled by the control circuit 46 of the floor brush 19. By rotating and driving in the same direction at substantially the same speed (same rotation speed), the traveling wheels 39a and 39b rotate at the substantially same speed in the same direction, for example, in the forward direction. By this rotation, the floor brush 19 moves straight forward on the floor surface F.

  At this time, as shown in FIG. 5 (b1), the distal end side extension pipe portion 25 connected to the floor brush 19 moves forward (moves forward) integrally with the floor brush 19, whereas the proximal end The side extension pipe portion 26 is gripped by the gripper 72 by the operator, so that the distal end side extension pipe portion 25 protrudes relatively from the proximal end side extension pipe portion 26 and the extension pipe 18 extends, and the floor brush 19 And the distance between the grip portion 72 and the grip portion 72 change. At this time, when the extension pipe 18 is extended and lengthened while the floor brush 19 is in contact with the floor surface F, the inclination angle of the extension pipe 18 with respect to the floor surface F changes so as to become small. The bending portion 71 (base end side extension pipe portion 26) slides relative to the gripping portion 72 gripped by the rotation so as to rotate downward. That is, the angle of the bending portion 71 (extension pipe 18) with respect to the grip portion 72 changes without changing the position of the grip portion 72.

  As a result, as shown in FIG. 5 (a1), the protruding portion 30 of the gripping portion 72 contacts the movable portion 29b of the microswitch 29, and the microswitch 29 is turned on.

  When the micro switch 29 is turned on, the control circuit 46 reverses the rotation direction of the motors 47a and 47b, that is, the traveling wheels 39a and 39b, and rotates the rotation direction at the substantially same speed in the reversed direction. The wheels 39a and 39b rotate rearward at substantially the same speed. By this rotation, the floor brush 19 goes straight backward on the floor surface F.

  At this time, as shown in FIG. 5 (b2), the distal end side extension pipe portion 25 connected to the floor brush 19 moves backward (returns) integrally with the floor brush 19, whereas the proximal end As for the side extension pipe part 26, the gripping part 72 is gripped by the operator, so that the proximal end side of the distal end side extension pipe part 25 is relatively inserted into the base end side extension pipe part 26 and the extension pipe 18 contracts. However, the distance between the floor brush 19 and the grip portion 72 changes. At this time, since the extension tube 18 is contracted and shortened while the floor brush 19 is in contact with the floor surface F, the inclination angle of the extension tube 18 with respect to the floor surface F changes so as to increase. The bending portion 71 (base end side extension pipe portion 26) slides relative to the gripping portion 72 gripped by the rotation so as to rotate relatively upward. That is, the angle of the bending portion 71 (extension pipe 18) with respect to the grip portion 72 changes without changing the position of the grip portion 72.

  As a result, as shown in FIG. 5 (a2), the protrusion 30 of the gripper 72 comes into contact with the movable part 28b of the microswitch 28, and the microswitch 28 is turned on.

  When the micro switch 28 is turned on, the control circuit 46 reverses the rotation direction of the motors 47a and 47b, that is, the traveling wheels 39a and 39b, and rotates the motors in the reversed direction at substantially the same speed. The wheels 39a and 39b rotate again at substantially the same speed in the forward direction. By this rotation, the floor brush 19 moves straight forward on the floor surface F.

  That is, the floor brush 19 is automatically turned on the floor surface F without the operator operating the grip portion 72 back and forth and up and down by the micro switches 28 and 29 being alternately turned on by the expansion and contraction of the extension pipe 18. Reciprocates back and forth.

  In this way, the bending portion 71 protrudes in the direction intersecting the moving direction of the distal end side extension tube portion 25 (longitudinal direction of the extension tube 18) to the proximal operation portion 17 on the proximal end side extension tube portion 26 side. By forming and attaching the gripping portion 72 along the curved portion 71 movably, the tip side extension pipe portion 25 relatively reciprocates while the floor brush 19 is in contact with the floor surface F. Even if the bending portion 71 moves up and down by changing the distance between 19 and the proximal-side extension tube portion 26 (the extension tube 18 expands and contracts) and the inclination angle of the extension tube 18 with respect to the floor F changes, Since the grip portion 72 moves relative to the curved portion 71, the position of the grip portion 72 hardly changes, and the operator does not need to move the hand holding the grip portion 72 up and down. As a result, the floor brush 19 can be reliably reciprocated on the floor surface F while suppressing the operator's cleaning operation, and the cleaning workability can be improved.

  Further, since the grip portion 72 is curved in an arc shape, an operator can easily grip the grip portion 72 and the usability can be improved.

  In the third embodiment, the microswitches 28 and 29 may be attached to the grip portion 72, and the protrusion 30 may be formed on the curved portion 71.

  In each of the above embodiments, a plurality of protrusions 30 may be formed corresponding to the microswitches 28 and 29.

  Further, the microswitch 28 may be disposed so as to be exposed to the outside of the distal end side extension tube portion 25 or the proximal end side extension tube portion 26 when the distal end side extension tube portion 25 is relatively reciprocated. In this case, the reciprocating stroke of the distal end side extension pipe portion 25, that is, the expansion / contraction stroke of the extension pipe 18 (reciprocating stroke of the floor brush 19) can be increased.

  Then, the relative reciprocation of the distal end side extension pipe part 25, that is, the extension and contraction of the extension pipe 18 is activated when the setting button 22 is operated (when the electric blower 51 is activated). It may be configured to start by connecting to a commercial AC power source. Alternatively, only the activation of the relative reciprocation of the distal end side extension tube portion 25 (extension and contraction of the extension tube 18) may be performed manually.

  In addition to the configuration in which the traveling wheels 39a and 39b of the floor brush 19 are driven by motors 47a and 47b, the distal end side extension pipe part 25 is indirectly reciprocated relative to the proximal end side extension pipe part 26. For example, the traveling wheels 39a and 39b are rotatable, and the distal end side extension tube portion 25 is moved relative to the proximal end side extension tube portion 26 by a moving means such as a motor (not shown). The floor brush 19 may be reciprocally moved back and forth indirectly by reciprocating the 25 directly with respect to the base end side extension pipe portion 26.

  If the distal end extension tube portion 25 is configured to move relative to the proximal end extension tube portion 26, for example, the proximal end extension tube portion 26 is moved relative to the distal end side extension tube portion 25. It is good.

  Next, a fourth embodiment will be described with reference to FIGS.

  In FIG. 8, reference numeral 75 denotes a so-called upright type (stick type) vacuum cleaner as a cleaning device. The vacuum cleaner 75 is a cleaning unit 76 and a shaft unit for operating the cleaning unit 76. It has a longitudinal stretchable part 77 that is an operation part.

  The cleaning unit 76 includes a cleaner body 81 that is longitudinal in the vertical direction, and a floor brush 82 as a suction port connected to a lower portion of the cleaner body 81.

  The vacuum cleaner main body 81 accommodates the electric blower 84 on the lower side, and a mounting portion 86 to which the dust collecting portion 85 can be attached and detached is recessed in the front portion. In addition, a handle portion 88 that is gripped when the cleaning portion 76 is lifted is formed in a loop shape on the rear portion on the upper side of the cleaner body 81. Further, a main body switch 89 for driving the electric blower 84 is provided on one side of the upper side of the cleaner body 81. Further, in the cleaner main body 81, a main body control circuit (not shown) for controlling the operation of the electric blower 84 is disposed. In the vacuum cleaner main body 81, a power supply unit (not shown) that supplies power to the electric blower 84, the main body control circuit, and the like is disposed. This power supply unit may be an internal power supply such as a secondary battery, or may be a cord reel device for taking power from an external commercial AC power supply. Further, a large number of exhaust holes (not shown) are formed in the rear part of the cleaner body 81.

  The electric blower 84 communicates with the attachment portion 86 on the suction side.

  The dust collecting portion 85 is also called a dust collecting cup, and is configured to airtightly close the front side of the mounting portion 86 with respect to the outside of the cleaner body 81 in a state of being attached to the mounting portion 86. .

  The main body control circuit is configured to control on / off of the electric blower 84 by operating the main body switch 89. In addition, in this embodiment, main body switch 89 only sets on / off of electric blower 84, but may switch the operation mode of electric blower 84.

  The floor brush 82 includes a horizontally long case body 91 and a connecting pipe 92 connected to the case body 91.

  The case body 91 includes a lower case 94 opened on the upper side, an upper case 95 covering the upper side of the lower case 94, a bumper 96 sandwiched between the lower case 94 and the upper case 95, and a floor brush 82. Traveling wheels 97a and 97b that enable traveling on the floor surface F (FIG. 6) are provided.

  In the lower case 94, as shown in FIG. 7, a horizontally long suction port 99 is formed so as to face the floor surface F (FIG. 6). Further, at the rear part of the lower case 94, a mounted part 100, to which traveling wheels 97a and 97b that enable the cleaning part 76 to travel on the floor F (FIG. 6) are rotatably mounted on both sides, protrudes rearward. Is formed.

  In addition, you may attach the rotation cleaning body similar to the rotating brush 42 of the said 1st Embodiment thru | or the said 3rd Embodiment to the suction inlet 99. FIG.

  The traveling wheels 97a and 97b are rotationally driven by motors 102a and 102b as driving means disposed in the attached portion 43, respectively. These motors 102a and 102b are controlled to rotate by a control circuit 103 as control means.

  The control circuit 103 is electrically connected to the cleaner body 81 (FIG. 8) side. The control circuit 103 controls the rotation direction of the motors 102a and 102b (traveling wheels 97a and 97b).

  Further, the connecting pipe 92 is connected to the case body 91 so as to be rotatable in the vertical direction and the circumferential direction, for example. Further, the connecting pipe 92 is integrally connected to the lower end portion of the cleaner body 81, and is configured to communicate with the mounting portion 86 of the cleaner body 81. Therefore, the floor brush 82 is configured to support the cleaner body 81 with respect to the floor surface F (FIG. 6).

  On the other hand, the expansion / contraction part 77 includes a substantially columnar expansion / contraction part main body 105 as a moving part connected to the upper part of the vacuum cleaner main body 81, and a substantially cylinder attached to the upper end side that is the base end side of the expansion / contraction part main body 105. And a fixed portion 106 having a shape.

  The expansion / contraction part main body 105 is integrally connected to the cleaner main body 81 at the front part of the upper end of the vacuum cleaner main body 81 at the substantially central position in the left-right width direction. For this reason, the stretchable part main body 105 is disposed along the longitudinal direction of the cleaner main body 81. Further, the expansion / contraction portion main body 105 can reciprocate relative to the fixed portion 106 when the cleaning portion 76 travels on the floor surface F (FIG. 6) by driving the traveling wheels 97a and 97b. Further, micro switches 108 and 109 as switching means are attached to the expansion / contraction section main body 105 at a position on the upper end side facing the inner peripheral side of the fixed section 106.

  These micro switches 108 and 109 include main body portions 108a and 109a fixed to, for example, the front portion of the telescopic portion main body 105, and movable portions 108b and 109b movably protruding from the main body portions 108a and 109a in an arm shape. It is a normally open switch, and is electrically connected to the control circuit 103. One micro switch 108 is located below the other micro switch 109. Further, one movable portion 108b protrudes downward from the upper side of one main body portion 108a, and the other movable portion 109b protrudes upward from the lower side of the other main body portion 109a. . These movable portions 108b and 109b are disposed in non-contact with the inner peripheral surface of the fixed portion 106.

  In addition, the fixed portion 106 is formed with a gripping portion 110 that is gripped by an operator during cleaning, protruding from the upper end side, and is located at a position facing the micro switches 108 and 109 of the expansion / contraction portion main body 105 on the inner peripheral side. A protrusion 111 as a switching operation portion is formed so as to protrude in the central axis direction. The protrusion 111 switches the microswitches 108 and 109 on and off by contacting the movable parts 108b and 109b.

  The microswitches 108 and 109, the protrusion 111, the control circuit 103, the motors 102a and 102b, and the like, the driving is switched when the expansion / contraction section main body 105 reciprocates and moves to a predetermined position. An expansion / contraction control unit 113 is configured as a reciprocation control unit that reverses the reciprocation, that is, the expansion / contraction of the expansion / contraction unit 77.

  Next, the operation of the fourth embodiment will be described.

  At the time of cleaning, the main body control circuit operates the electric blower 84 by the operator holding the grip 110 and operating the main body switch 89. At the same time, the control circuit 103 of the floor brush 82 drives the motors 102a and 102b to rotate in the same direction at substantially the same speed (same rotational speed), so that the traveling wheels 97a and 97b are substantially directed in the same direction, for example, in the forward direction. Rotates at the same speed. By this rotation, the cleaning unit 76 moves straight forward on the floor surface F.

  At this time, as shown in FIG. 6 (b1), the telescopic part main body 105 connected to the cleaning part 76 moves forward (moves forward) integrally with the cleaning part 76, whereas the gripping part 110 By being gripped by the operator, the expansion / contraction section main body 105 protrudes from the fixed section 106 and the expansion / contraction section 77 expands, and the distance between the cleaning section 76 and the grip section 110 changes. In the grip 110, the cleaning part 76 runs forward with the floor brush 82 in contact with the floor F, the extension part body 105 projects forward from the fixed part 106, and the extension part 77 extends. As a result, the distance from the cleaning unit 76 increases, and the inclination angle of the cleaner body 81 and the telescopic unit body 105 of the cleaning unit 76 with respect to the floor F changes so as to decrease and moves slightly downward. The position in the front-rear direction hardly changes.

  Then, as shown in FIG. 6 (a1), when the expansion / contraction part 77 is extended, that is, when the expansion / contraction part main body 105 is moved forward, the other micro switch 109 is formed on the fixed part 106 together with the expansion / contraction part main body 105. The protrusion 111 comes into contact with the movable portion 109b of the micro switch 109 at the first predetermined position where the main body 105 moves relatively forward with respect to 111 and the telescopic portion main body 105 protrudes to the maximum with respect to the fixed portion 106. Switch 109 is turned on.

  When the micro switch 109 is turned on, the control circuit 103 reverses the rotation direction of the motors 102a and 102b, that is, the traveling wheels 97a and 97b, and rotates the traveling wheels 97a at approximately the same speed in the reversed directions. , 97b rotate rearward at substantially the same speed. By this rotation, the cleaning unit 76 goes straight backward on the floor surface F.

  At this time, as shown in FIG. 6 (b2), the expansion / contraction part main body 105 connected to the cleaning part 76 moves backward (returns) integrally with the cleaning part 76, whereas the gripping part 110 By being gripped by the operator, the upper end side of the expansion / contraction section main body 105 is inserted into the fixing section 106, and the relative position of the fixing section 106 (gripping section 110) with respect to the expansion / contraction section main body 105 changes, and the expansion / contraction section 77 contracts. In addition, since the expansion / contraction part 77 shrink | contracts and shortens the holding | grip part 110 in the state in which the floor brush 82 is contacting the floor surface F, the distance from the cleaning part 76 becomes small, and the cleaning part 76 with respect to the floor surface F becomes small. Although the vacuum cleaner main body 81 and the expansion / contraction part main body 105 change so as to increase the inclination angle and move slightly upward, the position in the front-rear direction hardly changes.

  Then, due to the rearward movement of the expansion / contraction portion main body 105, as shown in FIG. The protrusion 111 comes into contact with the movable portion 108b of the microswitch 108 at the second predetermined position where the telescopic portion main body 105 is inserted in the maximum with respect to the fixed portion 106, and the microswitch 108 is turned on.

  When the micro switch 108 is turned on, the control circuit 103 reverses the rotation direction of the motors 102a, 102b, that is, the traveling wheels 97a, 97b, and rotates the traveling wheels 97a at approximately the same speed in the reversed directions. , 97b rotate forward again at approximately the same speed. By this rotation, the cleaning unit 76 moves straight forward on the floor surface F.

  That is, the cleaning unit 76 allows the operator to operate the grip unit 110 back and forth by the micro switches 108 and 109 being alternately turned on by the reciprocating movement of the expansion / contraction unit main body 105, in other words, by the expansion / contraction of the expansion / contraction unit 77. It automatically reciprocates back and forth on the floor F. Therefore, the reciprocating stroke of the expansion / contraction portion main body 105, in other words, the expansion / contraction stroke of the expansion / contraction portion 77 (reciprocation stroke of the cleaning portion 76) is defined by the distance from the projection 111 to the micro switches 108 and 109.

  Then, dust on the floor surface F is sucked together with air from the suction port 99 (FIG. 7) by the negative pressure acting on the floor surface F from the suction port 99 (FIG. 7). The air sucked from the suction port 99 (FIG. 7) becomes a suction wind, and is sucked together with dust from the connecting pipe 92 shown in FIG. 7 into the attachment portion 86 of the cleaner body 81, and attached to the attachment portion 86. Dust is collected when passing through the dust part 85.

  Thereafter, the suction air is sucked into the electric blower 84, passes through the electric blower 84 while cooling, becomes exhaust air, and is exhausted to the outside through an exhaust hole (not shown) of the cleaner body 81.

  When the cleaning is completed, the operator performs an operation of stopping the electric blower 84 by the main body switch 89 (FIG. 8). At this time, the main body control circuit stops the driving of the electric blower 84, and the control circuit 103 of the floor brush 82 stops the rotation of the motors 102a and 102b. The control circuit 103 may stop the driving of the motors 102a and 102b simultaneously with the operation of stopping the operation of the vacuum cleaner 75, or may turn the motors 102a and 102b backward after the operation of stopping the operation of the vacuum cleaner 75. Alternatively, the motor 102a, 102b is stopped after the telescopic part body 105 is moved to a predetermined storage position with respect to the fixed part 106 by rotating it forward for a predetermined time to bring the telescopic part 77 into a predetermined telescopic state. May be.

  As described above, according to the fourth embodiment, the telescopic part main body 105 reciprocates relative to the fixed part 106 and moves to a predetermined position (first predetermined position or second predetermined position). In other words, the expansion / contraction part 77 expands / contracts, the drive of the expansion / contraction control part 113 is switched, and the relative reciprocation of the expansion / contraction part main body 105, that is, the expansion / contraction of the expansion / contraction part 77 is reversed. When the telescopic unit main body 105 is relatively moved forward or backward (e.g., the telescopic unit 77 is temporarily expanded or contracted) by starting 84 (electric vacuum cleaner 75) or the like, the operator moves the grip unit 110. The relative reciprocation of the expansion / contraction portion main body 105 with respect to the fixed portion 106 is alternately switched without operation, and the expansion / contraction of the expansion / contraction portion 77 is alternately switched, and the cleaning portion 76 on the expansion / contraction portion main body 105 side is switched on the floor surface F. Since it automatically reciprocates, it is not necessary to reciprocate the gripping part 110, and Workability can be improved.

  Specifically, due to the expansion / contraction of the expansion / contraction part 77, the upper end side of the expansion / contraction part main body 105 relatively reciprocates in the fixed part 106, and the micro switches 108 and 109 are alternately turned on / off, and the micro switches 108 and 109 are turned on / off. By reversing the relative reciprocation of the expansion / contraction part main body 105, i.e., expansion / contraction of the expansion / contraction part 77, the operator can move the extension part main body 105 without moving the hand holding the grip part 110 together with the cleaning part 76 back and forth. The cleaning unit 76 automatically travels back and forth on the floor surface F with relative reciprocation (extension / contraction of the expansion / contraction unit 77), so that the operator's cleaning operation can be minimized.

  In particular, in the case of the upright type vacuum cleaner 75, the cleaner body 81 and the floor brush 82, which house the heavy electric blower 84, are integrated as the cleaning unit 76, so that the operator can apply power. In addition, when the cleaning unit 76 travels back and forth, the burden on the operator's hand is large, whereas in the fourth embodiment, the operator applies force to the cleaning unit 76 that is heavy. There is no need to move back and forth, and the burden on the operator can be greatly reduced.

  In addition, when the electric blower 84 (electric vacuum cleaner 75) is started by operating the body switch 89, the reciprocating movement of the expansion / contraction part main body 105 (extension / contraction of the expansion / contraction part 77) is started. The front-rear movement of the cleaning unit 76 can be started at a timing close to the timing to perform the cleaning, and the cleaning workability can be further improved.

  Furthermore, since the micro switches 108 and 109 are arranged at positions that are not exposed from the telescopic part main body 105 and the fixing part 106 within a range in which the telescopic part main body 105 relatively reciprocates, it is possible to suppress a decrease in appearance, Damage to the micro switches 108 and 109 can be prevented.

  Next, a fifth embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 4th Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the fifth embodiment, in the fourth embodiment, the grip portion 110 is formed separately from the fixed portion main body 115 and is circumferential with respect to the fixed portion main body 115, that is, the telescopic portion main body. It is configured to be able to rotate, that is, to be able to twist, in a direction that intersects the relative movement direction of 105 with respect to the fixed portion 106.

  The fixed body 115 has a circular cross section. Further, the fixed portion main body 115 is inserted into the grip portion 110 on the end side. Micro switches 117 and 118 as turning switching portions are attached to the outer peripheral surface of the fixed portion main body 115.

  These microswitches 117 and 118 are normally open provided with main body portions 117a and 118a fixed to the fixed portion main body 115 and movable portions 117b and 118b movably protruding from the main body portions 117a and 118a in an arm shape. Switch. Further, the micro switches 117 and 118 are attached to one side and the other side in the rotation direction of the grip part 110, that is, positions separated from each other on the left and right sides, and positions on the inner peripheral side of the grip part 110. Furthermore, the left movable portion 117b in FIG. 9 protrudes leftward from the main body portion 117a, and the right movable portion 118b in FIG. 9 protrudes rightward from the main body portion 118a. Yes. These movable parts 117b and 118b are arranged in non-contact with the inner peripheral surface of the grip part 110. The micro switches 117 and 118 are electrically connected to the control circuit 103 of the floor brush 82.

  The grip 110 is formed in a substantially bottomed cylindrical shape, and is urged toward the neutral position in the rotational direction by an urging means such as a spring, for example. This urging means is not an essential configuration. Further, on the inner peripheral side of the gripping part 110, a protruding part 121 as a turning switching operation part is formed at a position facing the micro switches 117 and 118 so as to protrude in the central axis direction. The protrusion 121 switches the microswitches 117 and 118 on and off by contacting the movable parts 117b and 118b. The cleaning circuit 76 is controlled by controlling the rotation of the traveling wheels 97a and 97b in accordance with the rotation direction of the grip 110 by the control circuit 103, the micro switches 117 and 118, the protrusion 121, the motors 102a and 102b, and the like. The turning control unit 123 is configured to turn the vehicle.

  That is, when the operator holding the holding part 110 twists the holding part 110, for example, to the left side with respect to the fixed part main body 115 as shown in FIG. The protrusion 121 moves to the left by the rotation of the portion 110, contacts the movable portion 117b of the microswitch 117 at a position moved by a predetermined angle, and turns on the microswitch 117. By turning on the micro switch 117, the control circuit 103 reduces the rotation speed of the motor 102a, stops the motor 102a, or reverses the rotation direction of the motor 102a, as shown in FIG. 9 (b1). In addition, the cleaning unit 76 turns to the left.

  On the other hand, when the operator holding the holding part 110 twists the holding part 110, for example, to the right side with respect to the fixed part main body 115 as shown in FIG. Moves to the right, contacts the movable part 118b of the micro switch 118 at a position moved by a predetermined angle, and turns on the micro switch 118. By turning on the micro switch 118, the control circuit 103 reduces the rotation speed of the motor 102b, stops the motor 102b, or reverses the rotation direction of the motor 102b, as shown in FIG. 9 (b2). In addition, the cleaning unit 76 turns to the right.

  When the operator loosens the force in the twisting direction to the gripping part 110, the gripping part 110 is rotated in the opposite direction to the twisting direction with respect to the fixed part main body 115 by the biasing means, and the neutral position is reached. Return.

  In this way, the gripping part 110 that can be rotated in the left-right direction intersecting the relative movement direction of the expansion / contraction part main body 105 with respect to the fixed part 106 is provided, and the gripping part 110 is turned in accordance with the rotational direction. The control unit 123 controls the rotation of the motors 102a, 102b, that is, the traveling wheels 97a, 97b, so that the cleaning unit 76 is swung on the floor surface F, so that the operator moves the cleaning unit 76 together with the grip unit 110 to the left side, Alternatively, the cleaning unit 76 can be easily swiveled only by twisting the gripping part 110 without being operated so as to swivel to the right side, and the cleaning unit 76 can be operated with less movements. Workability can be further improved.

  In the fifth embodiment, the twisting direction of the gripping part 110 and the turning direction of the cleaning part 76 are not necessarily matched. That is, for example, when the gripping part 110 is twisted to the left side (right side) with respect to the fixed part main body 115, the cleaning part 76 may be made to rotate correspondingly to the right side (left side). Furthermore, the turning direction of the cleaning unit 76 corresponding to the twisting direction of the gripping unit 110 may be switched between when the cleaning unit 76 moves forward and when it moves backward.

  Alternatively, the microswitches 117 and 118 may be attached to the grip 110 and the protrusion 121 may be formed on the fixed body 115.

  Further, a plurality of protrusions 121 may be formed corresponding to the micro switches 117 and 118.

  In the fourth and fifth embodiments, the microswitches 108 and 109 may be attached to the fixed portion 106, and the protruding portion 111 may be formed on the stretchable portion main body 105. The distal end side of the fixing portion 106 may be inserted into the proximal end side of the 105.

  Next, a sixth embodiment will be described with reference to FIG. In addition, about the structure and effect | action similar to the said 4th Embodiment, the same code | symbol is attached | subjected and the description is abbreviate | omitted.

  In the sixth embodiment, instead of the grip portion 110 of the fourth embodiment and the fifth embodiment, a curved portion 125 protruding from the fixed portion 106 and the curved portion 125 are provided. And a gripping portion 126 attached so as to be movable (slidable).

  The curved portion 125 is formed along the front-rear direction and is curved in an arc shape when viewed from the side. That is, the bending portion 125 is bent along a direction intersecting with the expansion / contraction direction of the expansion / contraction portion 77, which is a moving direction of the expansion / contraction portion main body 105 relative to the fixed portion 106. The curved shape of the curved portion 125 may be an elliptical shape close to a circle as long as it is substantially circular. Further, microswitches 108 and 109 are attached to positions separated from the inner peripheral side of the gripping portion 126 outside the bending portion 125 at positions separated from each other.

  The gripping portion 126 is formed in a substantially cylindrical shape that is curved in an arc shape along the bending portion 125, and the bending portion 125 is inserted through the inside thereof. Therefore, the gripping part 126 can move (slide) along the curved shape on the rear side of the curved part 125. In addition, a protrusion 111 is formed on the inner peripheral side of the grip 126 at a position facing the micro switches 108 and 109.

  When cleaning, the operator grips the grip 126 and operates the main body switch 89 to activate the electric blower 84 by the main body control circuit, and the motor 102a, 102b is controlled by the control circuit 103 of the floor brush 82. By rotating and driving in the same direction at substantially the same speed (same rotation speed), the traveling wheels 97a and 97b rotate at the substantially same speed in the same direction, for example, in the forward direction. By this rotation, the cleaning unit 76 moves straight forward on the floor surface F.

  At this time, as shown in FIG. 10 (b1), the telescopic part body 105 connected to the cleaning part 76 moves forward (moves forward) integrally with the cleaning part 76, whereas the grip part 126 While being gripped by the operator, the cleaning unit 76 travels forward with the floor brush 82 in contact with the floor surface F, and the telescopic unit main body 105 protrudes relatively forward from the fixed unit 106. The expansion / contraction part 77 expands, the distance from the cleaning part 76 of the grip part 126 increases, and the inclination angle of the vacuum cleaner body 81 and the expansion / contraction part body 105 of the cleaning part 76 with respect to the floor surface F changes, The bending portion 125 (expandable portion main body 105) slides relative to the holding portion 126 held by the operator so as to rotate downward. That is, the angle of the expansion / contraction part 77 (cleaning part 76) with respect to the grip part 126 changes without changing the position of the grip part 126.

  As a result, as shown in FIG. 10 (a1), the protruding portion 111 of the gripping portion 126 comes into contact with the movable portion 109b of the microswitch 109, and the microswitch 109 is turned on.

  When the micro switch 109 is turned on, the control circuit 103 reverses the rotation direction of the motors 102a and 102b, that is, the traveling wheels 97a and 97b, and rotates the motor 102a and 97b at approximately the same speed in the reversed direction. The wheels 97a and 97b rotate rearward at substantially the same speed. By this rotation, the cleaning unit 76 goes straight backward on the floor surface F.

  At this time, as shown in FIG. 10 (b2), the expansion / contraction part main body 105 connected to the cleaning unit 76 moves backward (returns) integrally with the cleaning unit 76, whereas the gripping unit 126 The distance between the gripping portion 126 and the cleaning portion 76 is reduced by the contraction and shortening of the telescopic portion 77 while the floor brush 82 is still in contact with the floor surface F while being gripped by the operator. The cleaner body 81 and the telescopic part body 105 of the cleaning unit 76 with respect to the surface F change so that the inclination angle thereof increases, and the curved part 125 moves upward relative to the grip part 126 gripped by the operator. And slide to rotate. That is, the angle of the expansion / contraction part 77 (cleaning part 76) with respect to the grip part 126 changes without changing the position of the grip part 126.

  As a result, as shown in FIG. 10 (a2), the protruding portion 111 of the gripping portion 126 comes into contact with the movable portion 108b of the microswitch 108, and the microswitch 108 is turned on.

  When the micro switch 108 is turned on, the control circuit 103 reverses the rotation direction of the motors 102a and 102b, that is, the traveling wheels 97a and 97b, and rotates the motor 102a and 102b at approximately the same speed. The wheels 97a and 97b rotate again at substantially the same speed in the forward direction. By this rotation, the cleaning unit 76 moves straight forward on the floor surface F.

  That is, the cleaning unit 76 automatically turns on the floor surface F without the operator operating the gripping part 126 back and forth and up and down by the micro switches 108 and 109 being alternately turned on by the expansion and contraction of the expansion and contraction part 77. Reciprocates back and forth.

  As described above, the fixed portion 106 protrudes in a direction intersecting with the moving direction of the expansion / contraction portion main body 105 (longitudinal direction of the expansion / contraction portion 77) to form the bending portion 125, and the gripping portion 126 is formed along the bending portion 125. Movably attached, the expansion / contraction part body 105 reciprocates relatively with the floor brush 82 in contact with the floor surface F, so that the expansion / contraction part 77 expands and contracts, and the floor of the expansion / contraction part 77 and the cleaning part 76 Even if the bending portion 125 moves up and down due to the change in the inclination angle with respect to the surface F, the gripping portion 126 moves relative to the bending portion 125, so the position of the gripping portion 126 hardly changes. However, it is not necessary to raise or lower the hand holding the holding part 126. As a result, the cleaning part 76 can be reliably reciprocated on the floor surface F while suppressing the cleaning operation of the operator, and the cleaning workability can be improved.

  In addition, since the gripping portion 126 is curved in an arc shape, the operator can easily grip the gripping portion 126, and the usability can be improved.

  In the sixth embodiment, the microswitches 108 and 109 may be attached to the grip portion 126, and the protrusion 111 may be formed on the curved portion 125.

  In the fourth to sixth embodiments, a plurality of protrusions 111 may be formed corresponding to the microswitches 108 and 109.

  Further, the microswitches 108 and 109 may be arranged so as to be exposed to the outside of the expansion / contraction section main body 105 or the fixed section 106 when the expansion / contraction section main body 105 is relatively reciprocated. In this case, the reciprocating stroke of the expansion / contraction part body 105, that is, the expansion / contraction stroke of the expansion / contraction part 77 (reciprocation stroke of the cleaning part 76) can be increased.

  The relative reciprocation of the expansion / contraction part main body 105, that is, the expansion / contraction of the expansion / contraction part 77 is activated when the main body switch 89 is operated (when the electric blower 84 is activated). It is good also as a structure which starts by connecting to a power supply. Alternatively, only the reciprocating motion of the expansion / contraction part main body 105 (extension / contraction of the expansion / contraction part 77) may be manually performed.

  Further, in addition to the configuration in which the traveling wheels 97a and 97b of the cleaning unit 76 are driven by the motors 102a and 102b to reciprocally move the expansion / contraction part body 105 relative to the fixed part 106, for example, the traveling wheels 97a , 97b are rotatable, and the expansion / contraction portion main body 105 is moved relative to the fixed portion 106 by a moving means such as a motor (not shown) so that the expansion / contraction portion main body 105 is directly reciprocated with respect to the fixed portion 106 for cleaning. It is good also as a structure which makes the part 76 reciprocate back and forth indirectly.

  Further, as long as the expansion / contraction part main body 105 moves relative to the fixed part 106, for example, the fixed part 106 may be moved relative to the expansion / contraction part main body 105.

  Moreover, in each said embodiment, the cleaning part can be set as the arbitrary structures which can drive | work on the floor surface F. FIG.

  Furthermore, the cleaning device has been described as the vacuum cleaners 11 and 75 for cleaning by sucking dust together with air with the negative pressure generated by driving the electric blowers 51 and 84, but does not have the electric blower, for example, the cleaning unit The same configuration can also be applied to an adhesive material that collects dust by adhering to it, or a cleaning device that includes a scissors-like cleaning member that sweeps and cleans dust.

11,75 Vacuum cleaner as a vacuum cleaner
19 Floor brush as cleaning part
21, 72, 110, 126 Grip part
25 Extension tube on the tip side as a moving part
26 Proximal extension tube as fixed part
39a, 39b, 97a, 97b Running wheel
49,113 Reciprocation controller as reciprocating controller
68, 123 Turn control unit
71, 125 Curved part
76 Cleaning section
105 Telescopic body as moving part
106 Fixed part

Claims (3)

A fixed part;
A gripping part for fixing the fixing part by being gripped by an operator;
A longitudinal moving part capable of reciprocating relative to the fixed part;
A cleaning unit that is provided on the moving unit side and includes traveling wheels that enable traveling on the surface to be cleaned, and that can travel on the surface to be cleaned in response to a relative reciprocation of the moving unit with respect to the fixed unit;
A reciprocation controller that controls the relative reciprocation of the moving unit, and the drive is switched when the moving unit moves to a predetermined position to reverse the relative reciprocation of the moving unit. Cleaning device characterized by. The gripping part is rotatable in a direction intersecting the relative moving direction of the moving part with respect to the fixed part
The cleaning device according to claim 1, further comprising: a turning control unit that turns the cleaning unit by controlling the rotation of the traveling wheel in correspondence with the rotation direction of at least a part of the gripping unit. A curved portion provided on the fixed portion side and projecting in a curved shape along a direction intersecting a relative moving direction of the movable portion with respect to the fixed portion;
The cleaning device according to claim 1, wherein the grip portion is movable along the curved portion.

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