JP2017213315A - Electric vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve workability of an electric vacuum cleaner by easily carrying a cleaner body in accordance with a situation of cleaning work.SOLUTION: An electric vacuum cleaner includes a cleaner body which suctions dust from a suction port body through a connection hose and collects the dust in an incorporated dust collection part. The cleaner body has a travelling wheel which supports the cleaner body in a manner to make the cleaner body travel in a prescribed travelling direction and a carrying handle for carrying the cleaner body. The carrying handle comprises an elongated lateral handle provided to be perpendicular to the travelling direction in an upper front part of the cleaner body and an elongated vertical handle having one end connected to the lateral handle and the other end connected to a rear part of the cleaner body.SELECTED DRAWING: Figure 4

Description

  The present invention relates to a vacuum cleaner.

  As a related art of the present invention, a vacuum cleaner body having a built-in electric blower and a dust collecting device and having a pair of traveling wheels, a suction port body for sucking dust, and a hose connecting the vacuum cleaner body and the suction port body, There are known vacuum cleaners equipped with a handle that is provided on the vacuum cleaner body in parallel to the traveling direction of the traveling wheels and those that are provided in a direction perpendicular to the traveling direction of the traveling wheels (for example, (See Patent Documents 1 and 2).

Patent No. 5022467 Japanese Patent No. 5659641

  However, in such a conventional vacuum cleaner, the user holds the vacuum cleaner body with one hand, and the other hand with the suction port body at a high place such as a wall or ceiling or a low place such as a staircase. Since the posture of the vacuum cleaner body changes, the user has a problem that it is difficult for the user to keep holding the vacuum cleaner body and the workability is lacking.

  The present invention has been made in consideration of such circumstances, and even if the posture of the cleaner body changes, the direction and position of gripping the handbag handle can be selected in accordance with the change of the posture of the cleaner body, thereby easily holding the cleaner body. An electric vacuum cleaner excellent in workability that can be continued is provided.

  The present invention includes a vacuum cleaner body that sucks dust from a suction port through a connection hose and collects the dust into a built-in dust collecting portion, and the vacuum cleaner body can travel in a certain traveling direction. A supporting wheel for supporting the cleaner body, and a handle handle, an elongated horizontal handle provided at an upper front portion of the cleaner body so as to be orthogonal to the traveling direction, and one end of the handle handle. An electric vacuum cleaner comprising an elongate vertical handle coupled to the horizontal handle and having the other end coupled to the rear portion of the vacuum cleaner main body is provided.

  According to this invention, since the hand handle is composed of both vertical and horizontal handles, the position and direction of gripping the hand handle can be arbitrarily selected according to the posture of the cleaner body that changes depending on the object to be cleaned, and the workability of cleaning is improved. To do.

It is a perspective view which shows the vacuum cleaner of 1st Embodiment of this invention. It is sectional drawing which shows the internal structure of the main-body part of the vacuum cleaner shown in FIG. It is sectional drawing which shows the state which took out the dust collection part from the main-body part shown in FIG. It is a side view of the main-body part shown in FIG. It is a top view of the main-body part shown in FIG. It is a principal part front view of the main-body part shown in FIG. It is operation | movement explanatory drawing of the handle handle of the main-body part shown in FIG. FIG. 6 is a view corresponding to FIG. 5 showing a main body portion of a second embodiment of the present invention. FIG. 9 is a view corresponding to FIG. 7 illustrating the operation of the hand handle of the main body shown in FIG. 8. FIG. 5 is a diagram corresponding to FIG. 4 of a third embodiment of the present invention. FIG. 9 is a diagram corresponding to FIG. 2 of a fourth embodiment of the present invention. It is internal structure explanatory drawing of the latch apparatus of 4th Embodiment of this invention. FIG. 13 is a side view of the latch device shown in FIG. 12. It is a principal part disassembled perspective view of the latch apparatus shown in FIG.

  The vacuum cleaner of the present invention includes a vacuum cleaner body that sucks dust from a suction port through a connection hose and collects the dust in a built-in dust collecting portion, and the vacuum cleaner body moves the vacuum cleaner body in a certain traveling direction. And a handwheel handle for holding the cleaner body, and the handle handle is an elongated horizontal handle provided at an upper front portion of the cleaner body so as to be orthogonal to the traveling direction. And an elongate vertical handle having one end coupled to the horizontal handle and the other end coupled to the rear portion of the cleaner body.

  The vertical handle has one end coupled to the horizontal handle via a sliding member provided so as to be slidable in the axial direction of the horizontal handle, and the other end having a support shaft provided parallel to the traveling direction at the rear portion. It is preferable that it is coupled to the center so as to be rotatable and can be moved in the left-right direction with respect to the traveling direction.

  The vertical handle includes a pair of first and second vertical handles separated in parallel with the traveling direction, and the sliding member includes a pair of first and second sliding members separated in the axial direction of the horizontal handle. The support shaft comprises a pair of first and second support shafts separated in parallel with the traveling direction, and the first and second vertical handles have one end at each side via the first and second sliding members. And the other ends may be coupled to the first and second support shafts, respectively.

The vertical handle may be extendable and retractable in the traveling direction.
The dust collecting part is incorporated in the vacuum cleaner main body so that it can be taken out of the vacuum cleaner main body, and the cleaner main body engages and disengages the dust collecting part by moving the vertical handle. It is preferable to provide an operating member for performing A latch device can be suitably used for this operation member.

Hereinafter, the present invention will be described in detail based on embodiments shown in the drawings. The present invention is not limited to the embodiments.
<First Embodiment>
(1) Whole structure of vacuum cleaner FIG. 1: is a perspective view which shows the vacuum cleaner of 1st Embodiment. As shown in the figure, the electric vacuum cleaner 1 includes a cleaner main body 2 (hereinafter referred to as a main body portion 2) in which an electric blower 6 (see FIG. 2) is incorporated.

  A power cord 8 that can be pulled out and stored is provided on the back surface of the main body 2. The power cord 8 has a power plug 9 at the tip, and is inserted into a commercial power outlet to supply power to the main unit 2.

  A flexible connection hose 3 is connected to the front surface of the main body 2, and an extension pipe 4 is connected to the tip of the connection hose 3. A suction port body 5 having a suction port facing the floor surface is provided at the tip of the extension pipe 4.

  The extension pipe 4 is provided with a pipe gripping portion 13 and an operation portion 14. The user operates the operation unit 14 to perform a cleaning operation, grips the pipe gripping part 13, and moves the suction port body 5.

  Accordingly, the main body 2 is also moved by a pair of wheels 7 provided on both sides. In addition, the main body 2 is provided with a hand handle 12 on the top for carrying the main body 2 as needed by the user.

(2) Internal Structure and Operation of Main Body FIG. 2 is a cross-sectional view showing the internal structure of the main body 2. The main body 2 is covered with a main body cover 10, and an electric blower 6 is disposed at the rear.

  A connection port 10a for connecting the connection hose 3 (FIG. 1) is opened on the front surface of the main body cover 10, and an exhaust port 10b is opened on the back surface. A dust collection chamber 19 (FIG. 3) is provided in front of the electric blower 6, and a cyclone type dust collection unit 20 is disposed in the dust collection chamber 19. The dust collection container 22 of the dust collection unit 20 is made of a transparent resin, and a window 10 </ b> C for visualizing the inside of the dust collection container 22 is provided in the main body cover 10.

  The dust collection unit 20 is provided with an inflow port 22a that communicates with the connection port 10a, a communication path 42 through which airflow from which dust is removed, and a dust collection unit exhaust port 42a. The dust collector exhaust port 42 a and the electric blower 6 are connected by a duct 15.

  A cover 40 that forms an exterior of the dust collector 20 is disposed on the dust collector 20 continuously from the main body cover 10. A rotatable gripping portion 41 pivotally supported at the rear portion is provided on the upper surface of the cover portion 40, and an engaging portion 43 that engages with the main body cover 10 is provided at the upper rear of the cover portion 40. The engaging portion 43 is moved forward and backward by the rotation of the grip portion 41.

  The dust collecting part 20 is mounted on the main body part 2 by engaging the front part of the cover part 40 on the main body cover 10 and engaging the rear engaging part 43. When the tip of the grip 41 is pulled up, the engaging portion 43 is retracted and the engagement with the main body cover 10 is released, and the dust collecting portion 20 can be taken out from the main body 2 as shown in FIG. Thereby, the dust collected by the dust collection part 20 can be discarded.

  In the vacuum cleaner 1 having such a configuration, the dust on the floor surface is sucked from the suction port body 5 by driving the electric blower 6 and passes through the extension pipe 4 and the connection hose 3. The air flow including dust flows into the dust collecting container 22 of the dust collecting unit 20 through the connection port 10a and the inflow port 22a, and forms a swirling air flow in the dust collecting container 22. The relatively large dust contained in the airflow is removed by the centrifugal force of the swirling airflow, and is accumulated in the dust collecting container 22.

  The airflow from which the large dust has been removed flows out from the outlet 51a into the inner cylinder 51 and rises, and fine dust is collected by the filter 37. The airflow that has passed through the filter 37 flows out of the dust collector 20 through the dust collector exhaust port 42a. The airflow flowing out from the dust collection unit 20 passes through the duct 15 and is exhausted from the exhaust port 10b through the electric blower 6.

  When the grip 41 is pulled up, the engagement between the engaging portion 43 and the main body cover 10 is released as described above, and the dust collecting portion 20 is taken out from the dust collecting chamber 19 as shown in FIG. When the filter holding part 50 is detached from the dust collecting container 22 together with the cover part 40 by the rotation of the clip 23, the dust collecting part 20 taken out is discarded. When the cover 40 is opened, the filter 37 can be removed from the dust, washed with water, and the like.

(3) Structure and function of a hand handle Next, the structure and function of a hand handle will be described in detail below.
4 is a side view of the main body including the hand handle, FIG. 5 is a top view of the main body, FIG. 6 is a front view of the main part of the main body, and FIG. 7 is a top view showing the operation of the hand handle.

  As shown in FIGS. 4 to 6, the hand handle 12 is fixed in front of the traveling direction (arrow X direction) by the wheel 7 of the main body 2 so as to straddle the main body 2 in a direction orthogonal to the traveling direction. An arc-shaped horizontal handle 61 made of an elongated circular pipe-shaped member, and an elongated circular pipe-shaped member provided along the traveling direction of the main body 2 so as to intersect the horizontal handle 61 above the main body 2 A vertical handle 62 is provided.

  The lateral handle 61 is fixed to a pair of support arms 63 whose both ends are integrally formed with the main body cover 10. Further, the lateral handle 61 includes a sliding member 64 that can slide in the axial direction. The sliding member 64 has a curvature corresponding to the curvature in the axial direction of the horizontal handle 61 and a through hole having an inner diameter corresponding to the outer diameter of the horizontal handle 61 in order to smoothly slide along the horizontal handle 61. And the horizontal handle 61 passes through the through hole with an appropriate clearance.

  The vertical handle 62 has a front end portion 65 fixed to the sliding member 64, and a rear end portion 66 coupled to a support shaft 68 supported by a bearing portion 67 provided inside the rear of the body cover 10 as shown in FIG. Has been. The support shaft 68 is supported by the bearing portion 67 so as to be parallel to the traveling direction of the main body portion 2. Accordingly, the vertical handle 62 can be laid down by 90 degrees to the left and right with respect to the traveling direction of the main body 2. The rear end portion 66 of the vertical handle 62 is partially flat so that it can be easily coupled to the support shaft 68.

  When the user uses the vertical handle 62 to hold the main body 2, the user may set the vertical handle 62 at the upper center of the main body 2 as shown in FIGS. 4 to 6. Further, when the main body 2 is provided using the horizontal handle 61, the vertical handle 62 is laid down on the right or left side with respect to the moving direction of the main body 2 as shown in FIG. 7 (a) or (b). That's fine.

  Further, as shown in FIG. 3, the work of taking the dust collecting unit 20 upward from the main body unit 2 can be easily performed by tilting the vertical handle 62 as shown in FIG. 7 (a) or (b). .

  In this embodiment, a metal or plastic circular pipe-shaped member having an outer diameter of 20 to 30 mm is used for the horizontal handle 61 and the vertical handle 62. However, a member having a semicircular, elliptical, or polygonal cross section may be used in consideration of the grip, rigidity, or design.

Second Embodiment
8 and 9 are diagrams corresponding to FIGS. 5 and 7 showing a second embodiment of the present invention, respectively.
In this embodiment, the vertical handle 62 and the sliding member 64 of the first embodiment are divided into a pair of vertical handles 62a and 62b and a pair of sliding members 64a and 64b, respectively.

  Further, the support shaft 68 and the bearing portion 67 of the first embodiment are replaced with a pair of support shafts 68a and 68b and a pair of bearing portions 67a and 67b, respectively. Other configurations are the same as those of the first embodiment.

  When the user provides the main body 2 using the vertical handles 62a and 62b, the vertical handles 62a and 62b are brought close to each other at the upper part of the main body 2 as shown in FIG. Further, when the user uses the horizontal handle 61 to hold the main body 2 or to take out the dust collecting part 20 as shown in FIG. 3, the vertical handles 62a and 62b are moved left and right as shown in FIG. Put it down.

  Each of the vertical handles 62a and 62b has a semicircular cross section, and a substantially circular or elliptical cross section is formed by both of them so that they can be easily adapted to the user's hand when they are closest to each other as shown in FIG. It is preferable.

<Third Embodiment>
FIG. 10 is a view corresponding to FIG. 4 showing a third embodiment of the present invention. In this embodiment, the vertical handle 62 of the first embodiment is replaced with a combination of vertical handles 62c and 62d. Other configurations are the same as those of the first embodiment.

  In this embodiment, the vertical handle 62c is formed of a circular pipe, and a circular vertical handle 62d is inserted concentrically at one end thereof, thereby forming a single vertical handle coupled in series.

  In the insertion portion L of the vertical handle 62d into the vertical handle 62c, the mutual curvature and clearance are set so that the vertical handles 62c and 62d can slide in the axial direction.

  According to this embodiment, when the vertical handle is moved in the left-right direction, even if the distance from the sliding member 64 to the support shaft 68 varies depending on the sliding position of the sliding member 64 in the horizontal handle 61, the vertical handle Can be expanded and contracted in the axial direction, so that the moving operation can be performed smoothly.

<Fourth embodiment>
In this embodiment, the dust collector can be locked and released from the main body by operating the vertical handle.
In the first embodiment, as shown in FIG. 2, a cover 40 that forms an exterior of the dust collector 20 is disposed on the upper surface of the dust collector 20 on the upper surface of the dust collector 20. A rotatable gripping portion 41 pivotally supported at the rear portion is provided, and an engaging portion 43 that engages with the main body cover 10 is provided at the upper rear portion of the cover portion 40.

  The engaging portion 43 is moved forward and backward by the rotation of the grip portion 41. Then, the dust collector 20 is mounted on the main body 2 by hooking the front portion of the cover portion 40 on the main body cover 10 and engaging the rear engaging portion 43.

  Further, when the tip of the gripping part 41 is pulled up, the engaging part 43 is retracted and the engagement with the main body cover 10 is released, and the dust collecting part 20 can be taken out from the main body part 2 as shown in FIG. I am doing so.

  FIG. 11 is a diagram corresponding to FIG. 2 showing the fourth embodiment. In this embodiment, instead of the grip portion 41 pivotally supported by the cover portion 40 of the first embodiment and provided rotatably, a grip portion 41a fixed to the cover portion 40 as shown in FIG. 11 is used. .

  Further, in this embodiment, the engaging portion 43 engaged with the main body cover 10 of the first embodiment and the engaging portion 43 are retracted by pulling up the tip of the gripping portion 41 to engage with the main body cover 10. Instead of the mechanism to be released, a latch locking portion 60 provided in the cover portion 40 and a latch device 71 fixed inside the main body cover 10 are used as shown in FIG.

  Further, a support shaft 68 c is used instead of the support shaft 68 of the first embodiment, and a bearing portion 67 c is used instead of the bearing portion 67. The support shaft 68c includes a pin 59 that passes through the bearing 67c and is orthogonal to the penetrating tip. The latch device 71 includes a latch portion 72 and a rotation shaft 77, and the latch portion 72 protrudes and retracts from the latch device 71 by the rotation of the rotation shaft 77.

  An operation lever 58 is provided on the rotation shaft 77, and the operation lever 58 and the pin 59 are disposed so as to be orthogonal to each other. The rotation operation of the support shaft 68c by the vertical handle 62 rotates the rotation shaft 77 via the pin 59 and the operation lever 58.

  In this embodiment, as shown in FIG. 11, the dust collecting portion 20 is mounted and fixed to the main body portion 2 by locking the latch portion 72 protruding from the latch device 71 to the latch locking portion 60 of the cover portion 40. The

  Further, when the support shaft 68 c is rotated by the moving operation of the vertical handle 62 and the rotation shaft 77 is rotated about 30 degrees clockwise as viewed from above the latch device 71, the latch portion 72 is moved into the latch device 71. And the engagement between the main body cover 10 and the cover portion 40 is released, and the dust collecting portion 20 can be taken out from the main body portion 2.

  In this embodiment, when the vertical handle 62 reaches the position shown in FIG. 7B from the position shown in FIG. 5, the rotary shaft 77 rotates about 30 degrees as described above so that the latch portion 72 moves backward. It has become.

  Therefore, the user only needs to install the vertical handle 62 at the position shown in FIG. Further, when the main body 2 is provided using the horizontal handle 61, the vertical handle 62 may be installed at the position shown in FIG. The operation of inserting the dust collecting unit 20 into the main body unit 2 can be performed even when the vertical handle 62 is at the position shown in FIG.

(Latch device structure and operation)
The structure and operation of the latch device used in this embodiment will be described below.
12 is an explanatory diagram of the internal structure of the latch device, FIG. 13 is a side view of the latch device, and FIG. 14 is an exploded perspective view of the main part of the latch device shown in FIG.

  As shown in these drawings, the latch device 71 includes a casing 73 having a latch portion 72 projecting in an extruding biased state on one end side, and the latch portion 72 is caused to advance and retract (in and out). A motion mechanism 74 is accommodated. Here, the “pushing urging state” refers to a state in which the latch portion 72 is urged so as to be retracted when it receives an external force in the retracting direction and to be extruded when the external force is removed.

  The motion mechanism 74 is provided with a cylindrical rotating boss tool 75 near the end opposite to the latch portion 72 (on the right side in FIGS. 12A and 12B). A square hole 76 passes through the central portion of the rotary boss tool 75, and a rotary shaft 77 (FIGS. 11 and 13) to which the operation lever 58 (FIG. 11) is attached is inserted into the square hole 76 and fixed. It has become so.

  As shown in FIG. 13, the casing 73 includes an upper casing 73 </ b> A and a lower casing 73 </ b> B, which are coupled by caulking shafts 78, 79, and 80. The mounting seat 82 is integrally formed with the upper casing 73A.

  In the movement mechanism 74, the rotation boss tool 75 is rotated by rotating the operation lever 58 (FIG. 11) as described above. This rotating operation is converted into a sliding operation of the slider 85 through the cam piece 84 protruding from the outer peripheral surface of the rotating boss tool 75.

  The sliding motion of the slider 85 is the swinging motion of the reversing claw 86, and the swinging motion is converted from the other end to a sliding motion in the opposite direction of the bracket 87, and the latch portion 72 moves forward and backward integrally with the bracket 87. It comes to exercise.

  The reversing claw 86 is held with a caulking shaft 78 passing through the upper casing 73A as the center of oscillation. A conical coil spring 90 is attached to the latch portion 72 between a spring receiver 91 provided in the upper casing 73A. Therefore, the latch portion 72 receives an elastic biasing force from the conical coil spring 90 and is pushed out. The status is maintained independently.

  On the other hand, a ring-shaped spring 93 is provided on the rotating boss tool 75 so as to wind the rotating boss tool 75. One engaging portion 94 of the ring-shaped spring 93 is engaged with a caulking shaft 79 penetrating through the upper casing 73A, and the other engaging portion 95 applies a certain amount of spring force to the ring-shaped spring 93 in the diameter reducing direction. After acting, it is engaged with an engaging piece 96 protruding from the outer peripheral surface of the rotating boss tool 75.

  Accordingly, the turning boss tool 75 is applied with the turning force in the left direction in FIG. 12A, that is, in the counterclockwise direction, but the engagement piece 96 is provided in the upper casing 73A. By abutting against the contact step portion 97, the rotating boss tool 75 is stopped and biased while maintaining a predetermined standby angle. In addition, the rotation boss tool 75 uses the state in which the engagement piece 96 is in contact with the stopper piece 98 provided at the innermost part of the upper casing 73A as the limit of the rotation range.

  As shown in FIG. 12A, in such a standby state of the rotating boss tool 75, the ring-shaped spring 93 forms a slight circumferential gap between the outer periphery of the rotating boss tool 75. It has become. Further, both end engaging portions 94, 95 of the ring-shaped spring 93 are positioned at the front and rear portions of the rotating boss tool 75 along the axial direction (the left-right direction in FIG. 12A) of the forward and backward movement of the latch portion 72. It is supposed to be.

  Then, when the rotating boss tool 75 is rotated about 30 degrees to the right in FIG. 12A from this state (that is, clockwise), the cam piece 84 slides the slider 85 in the arrow direction. Then, the reversing claw 86 is rotated clockwise to slide the bracket 87 to the right. Thereby, the latch portion 72 is pulled into the casing 73 as shown in FIG.

  Therefore, when the latch device 71 shown in FIG. 13 is attached to the main body 2 as shown in FIG. 11, the latch locking portion 60 of the dust collecting portion 20 is inserted into the upper inclined surface of the latch portion 72 when the dust collecting portion 20 is inserted. Is pushed in the vertical direction, and the latch portion 72 is pulled in by the component force. When the latch locking part 60 exceeds the latch part 72, the latch part 72 protrudes and locks to the latch locking part 60, and the dust collecting part 20 is fixed to the main body part 2. When the dust collecting unit 20 is taken out, the latch unit 72 is drawn into the latch device 71 by the rotation of the rotating boss tool 75 interlocked with the movement operation of the vertical handle 62, and the dust collecting unit 20 is released from the main body unit 2. The

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner, 2 Main-body part, 3 Connection hose, 4 Extension pipe, 5 Suction port body, 6 Electric blower, 7 Wheel, 8 Power cord, 9 Power plug, 10 Main body cover, 10a Connection port, 10b Exhaust port, 10c Window part, 12 Hand handle, 13 Pipe grip part, 14 Operation part, 15 Duct, 19 Dust collection chamber, 20 Dust collection part, 22 Dust collection container, 22a Inlet, 37 Filter, 40 Cover part, 41 Grasping part, 41a Gripping part, 42 communication path, 42a dust collecting part exhaust port, 43 engaging part, 51 inner cylinder, 51a outlet, 58 operation lever, 59 pin, 60 latch locking part, 61 side handle, 62, 62a, 62b, 62c, 62d Vertical handle, 63 Support arm, 64, 64a, 64b Slide member, 65 Front end, 66 Rear end, 67a, 67b, 67c Bearing, 68, 68 a, 68b, 68c Support shaft, 71 Latch device, 72 Latch part, 77 Rotating shaft

Claims (5)

  A vacuum cleaner body that sucks dust from a suction port through a connection hose and collects the dust in a built-in dust collecting section, and the vacuum cleaner body supports the vacuum cleaner body so that it can travel in a certain traveling direction. And a hand handle for holding the vacuum cleaner body, the hand handle being an elongated horizontal handle provided at an upper front portion of the vacuum cleaner body so as to be orthogonal to the traveling direction, and one end of the handle to the horizontal handle A vacuum cleaner comprising an elongated vertical handle coupled to the other end of the vacuum cleaner main body.   The vertical handle has one end coupled to the horizontal handle via a sliding member provided so as to be slidable in the axial direction of the horizontal handle, and the other end having a support shaft provided parallel to the traveling direction at the rear portion. The electric vacuum cleaner according to claim 1, wherein the electric vacuum cleaner is coupled to the center so as to be rotatable, and the vertical handle is movable in the left-right direction with respect to the traveling direction.   The vertical handle includes a pair of first and second vertical handles separated in parallel with the traveling direction, and the sliding member includes a pair of first and second sliding members separated in the axial direction of the horizontal handle. The support shaft comprises a pair of first and second support shafts separated in parallel with the traveling direction, and the first and second vertical handles have one end at each side via the first and second sliding members. The vacuum cleaner according to claim 2, wherein the other end is coupled to the first and second support shafts.   The electric vacuum cleaner according to claim 1, wherein the vertical handle is extendable in the traveling direction.   The dust collector is locked to the vacuum cleaner main body so that it can be taken out to the outside, and the cleaner main body locks the dust collector in conjunction with the movement of the vertical handle and releases the lock. The vacuum cleaner of Claim 2 provided with the operation member which performs operation | movement to do.

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