JP2010094372A - Vacuum cleaner - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a vacuum cleaner improving its usability as an extension tube is laid down without deteriorating its usability as the extension tube is raised to be diagonal. <P>SOLUTION: The vacuum cleaner includes a suction mouth member having a suction head and a connection tube projecting from the head connected to each other by a universal joint part. The suction mouth member is connected to the cleaner body through an extension tube 51 connected to the connection tube, a dust suction hose 5 connected to the cleaner body, and a grip pipe 21 connecting the suction hose 5 to the extension tube 51. A grip handle 31 is a separate member from a grip pipe 21. The grip handle 31 is mounted to be turnable around the grip pipe 21. The vacuum cleaner includes a handle lock means 41. The grip handle 31 is held to be disposed on the upper side of the grip pipe 21 by means of the lock means 41. As the holding is canceled, turning of the grip handle 31 around the grip pipe 21 is allowed. <P>COPYRIGHT: (C)2010,JPO&INPIT

Description

  The present invention grasps a hand handle provided on the tip side of the dust suction hose, and moves the suction port attached to the tip of the extension pipe communicated with the dust suction hose along the surface to be cleaned. It relates to a vacuum cleaner.

  In general, the floor suction port body of an electric vacuum cleaner has a configuration in which a suction head and a connecting pipe projecting from the head are connected by a universal joint.

  Conventionally, the vacuum cleaner body and the suction port body are connected to the extension pipe connected to the connection pipe of the suction port body, the dust suction hose connected to the vacuum cleaner body, and the dust suction hose and the extension pipe. In addition, there is known an electric vacuum cleaner that is connected via a hand-shaped pipe formed in a square shape and has a hand handle integrally provided on the upper side of the hand pipe (for example, see Patent Document 1).

In the electric vacuum cleaner disclosed in Patent Document 1, the suction port is moved along the surface to be cleaned such as the floor surface through the extension pipe as the hand handle provided on the tip side of the dust suction hose is grasped and pushed. It can be moved forward and backward, and the direction of the suction port can be changed by twisting the hand handle.
JP 2007-236971 A (paragraphs 0014-0016, FIGS. 1 to 3)

  For example, when cleaning the floor surface facing the lower space of the bed with a conventional vacuum cleaner, when trying to advance the suction port deeply into the lower space with the extension pipe raised obliquely, the extension The tube needs to be close to the floor. At that time, the extension pipe cannot be brought closer to the floor surface when the dust suction hose connected to the proximal pipe comes into contact with the floor surface because the proximal pipe is bent in a U-shape. . For this reason, as the extension tube is forced to advance in a state where the extension tube is tilted, the extension tube hits the bed and cannot be further operated.

  In order to cope with such a situation, the connecting pipe and the extension pipe connected thereto may be laid sideways along the floor surface around the universal joint portion of the suction port body. Thereby, it can avoid that an extension pipe contacts a bed, and can advance and clean a suction inlet to the deep part of the said lower space.

  However, since the hand handle of the conventional vacuum cleaner is integrally provided on the upper side of the hand pipe bent in the shape of a letter as described above, the hand handle should not be turned sideways due to the above-mentioned sideways. I can't. Since the hand handle is made on the assumption that it is facing upward, in order to push and pull the suction mouth in the state that it is sideways, it is forced to operate with a load on the wrist The Therefore, it is unusable and its improvement is demanded.

  In addition, when the hand handle of the vacuum cleaner is not bent and has a straight tube shape, the extension pipe can be tilted directly down along the floor surface. Can be inserted. However, the movable angle in the vertical direction of the universal joint portion connecting the extension pipe and the floor suction port body is not so large as to allow the extension pipe to be tilted straight down along the floor surface. For this reason, as the extension pipe is tilted directly down along the floor surface, the suction port body is separated from the floor surface and lifted obliquely upward with the universal joint portion as a fulcrum. Therefore, in order to clean the lower space of the bed in consideration of such circumstances, the connecting pipe and the extension pipe connected thereto are laid sideways along the floor surface around the universal joint portion of the suction port body. Must be. However, in this case as well, the user is forced to operate with a load on the wrist, which is inconvenient.

  An object of the present invention is to provide an electric vacuum cleaner that can improve the usability in a state where the extension tube is laid down without impairing the usability when the extension tube is raised at an angle.

  The present invention comprises a suction head and a suction port body in which a connection pipe projecting from the head is connected by a universal joint, and the suction port body and the cleaner body are connected to the connection pipe. A dust suction hose connected to the machine main body, and a vacuum cleaner having both ends connected to the dust suction hose and the extension pipe, and a hand handle provided on the outside with a hand handle are assumed.

  The vacuum cleaner of the present invention has handle lock means, and the hand handle is separated from the hand pipe, and the hand handle is rotatably attached around the hand pipe to which the dust suction hose is in contact. The handle lock means holds the hand handle in a state of being arranged on the upper side of the hand pipe, and allows the hand handle around the hand pipe to be rotated in a state in which the hold is released.

  According to the vacuum cleaner of the present invention, it is possible to improve the usability in a state where the extension pipe is laid down without impairing the usability in the state where the extension pipe is raised obliquely.

  An embodiment of the present invention will be described with reference to FIGS.

  Reference numeral 1 in FIG. 1 indicates a canister-type vacuum cleaner, for example. The electric vacuum cleaner 1 includes a vacuum cleaner body 2 to which wheels are attached. The vacuum cleaner body 2 has a dust collection chamber (not shown) located on the upstream side of an electric blower (not shown) built in the vacuum cleaner body 2, and is opened in the front wall of the cleaner body 2 to form a dust collection chamber. It has a dust suction port 2a in communication. Reference numeral 2b in FIG. 1 denotes a dust collection chamber lid that opens and closes the dust collection chamber, and a dust collection bag (not shown) (not shown) is put in and out of the dust collection chamber in a state where the lid is opened. It has become.

  The electric vacuum cleaner 1 includes a dust suction air passage body 3 that guides dust-containing air to the dust collection chamber. The dust suction air passage body 3 includes a dust suction hose 5, a hand pipe 21, a hand handle 31, a handle lock means 41, an extension pipe 51, and a suction port body 55.

  The dust suction hose 5 has a bellows tubular shape and is flexible. The dust suction hose 5 has a connecting pipe portion 6 at one end thereof, that is, at the downstream end with reference to the flow direction of the dust-containing airflow passing through the dust suction hose 5. This connecting pipe portion 6 is detachably inserted and connected to the dust suction port 2a of the cleaner body 2. As shown in FIG. 2, the dust suction hose 5 has a connecting pipe portion 7 at the other end portion (tip portion), that is, the upstream end portion with reference to the flow direction of the dust-containing airflow passing through the dust suction hose 5. Yes.

  An annular hermetic seal material 8 that is continuous in the circumferential direction is attached to the outer periphery of the distal end portion of the connecting pipe portion 7. At the same time, a connecting groove 9 is provided on the outer periphery of the distal end portion of the connecting pipe portion 7, and a cover mounting groove 10 is provided on the outer periphery of the proximal end portion of the connecting pipe portion 7. Both the connecting groove 9 and the cover mounting groove 10 are formed between flanges that are provided integrally and projecting from the outer periphery of the connecting pipe portion 7 in the circumferential direction of the connecting pipe portion 7.

  The connecting groove 9 is provided in the vicinity of the hermetic seal material 8, and the cover mounting groove 10 is provided farthest from the hermetic seal material 8. A cover 11 made of synthetic resin having flexibility is fitted and attached to the cover mounting groove 10. This cover 11 covers the end of the bellows tube portion of the dust suction hose 5 on the connecting tube portion 7 side.

  Further, a plurality of annular grooves located between the connecting groove 9 and the cover mounting groove 10 are continuously provided in the circumferential direction of the connecting pipe portion 7 between the flanges integrally projecting from the outer periphery of the connecting pipe portion 7. Each of them is formed, and a slip ring 12 is attached to each of the predetermined annular grooves. Each slip ring 12 is connected to a spiral piano wire (not shown) used by the dust suction hose 5 to maintain its bellows-like shape via an electric wire (not shown). The piano wire is connected to an electrical connector (not shown) provided in the connecting pipe portion 6, and this connector is fitted into a connector receiver (not shown) provided in the dust suction port 2 a so as to be inside the cleaner body 2. Are electrically connected to a control unit (not shown). The control unit controls the operation of the electric blower.

  As shown in FIG. 2, the proximal pipe 21 includes a downstream pipe-like portion 21 a that is fitted and arranged outside the connection pipe portion 7, and an upstream side of the connection pipe portion 7 from the front end of the downstream pipe-like portion 21 a. Are provided with an upstream-side pipe-like portion 21b that continuously and integrally project, and a stopper 22 fixed to the upper portion of the downstream-side pipe-like portion 21a.

  The downstream-side pipe-like portion 21a and the upstream-side pipe-like portion 21b form an obtuse angle between them and are continuous, so that the proximal pipe 21 is bent in a dogleg shape. This bend causes the downstream pipe-like portion 21a to be arranged substantially horizontally in a normal use state when the floor 31 is cleaned by grasping the handle portion 31 to be described later, and obliquely from the front end of the downstream pipe-like portion 21a. In order to project the upstream pipe-like portion 21b downward so that an extension pipe 51, which will be described later, connected to the upstream pipe-like portion 21b is raised obliquely and to enable the push-pull operation. Is considered.

  The connecting pipe part 7 is rotatable in the circumferential direction with respect to the downstream pipe-like part 21a. The airtight sealing material 8 is in contact with the inner peripheral surface of the downstream pipe-shaped portion 21a so as to be slidable along the circumferential direction. As a result, the space between the downstream pipe-shaped portion 21a and the connecting pipe portion 7 disposed inside is sealed.

  As shown in FIG. 3, the downstream-side pipe-like portion 21 a has a pair of detent portions 23 that define a turning angle of a hand handle 31 described later with respect to the hand pipe 21. The anti-rotation part 23 is integrally projected from the outer surface of the downstream pipe-like part 21a, for example, approximately 180 ° apart. These rotation stoppers 23 are located in the connecting groove 9.

  As shown in FIG. 2, the stopper 22 is screwed to the upstream pipe-shaped portion 21b and extends substantially over the entire length of the upstream pipe-shaped portion 21b in the axial direction. A stopper 22a is integrally formed on the back surface of one end of the stopper 22 on the fixed side, and the convex stopper 22a is inserted into the connecting groove 9 from above. Due to the engagement of the retaining portion 22a with the outer peripheral flange of the connecting pipe portion 7 forming the connecting groove 9, the connecting tube portion 7 may come off from the downstream pipe-like portion 21a of the proximal pipe 21 along the axial direction. Not to be held.

  The stopper 22 has a lock portion 22b at the other end in the longitudinal direction. As shown in FIGS. 2 and 4, the lock portion 22 b is opened on the surface of the stopper 22 and is formed of a concave portion, but can also be formed by a through hole.

  As shown in FIG. 2, a locking hole 25, a locking mechanism 26, and a mechanism cover 27 are provided on the upstream pipe-like portion 21 b of the hand pipe 21. The locking hole 25 penetrates the peripheral wall of the upstream pipe-like portion 21b. The locking mechanism 26 has a locking button 26a and a spring 26b attached to the outer surface side of the upstream pipe-like portion 21b. The locking button 26 a can be rotated around a fulcrum (not shown), and is biased by a spring 26 b from the back side of the mechanism cover 27 so that one end portion thereof protrudes from the mechanism cover 27. Due to this urging, the other end of the locking button 26 a is inserted into the locking hole 25, and the other end is detached from the locking hole 25 as the one end is pushed into the back side of the mechanism cover 27. It has become.

  The hand handle 31 is formed separately from the hand pipe 21. As shown in FIGS. 2 to 4, the hand handle 31 includes a handle base portion 31 a and a handle portion 31 b that projects integrally and obliquely from the handle base portion 31 a.

  As shown in FIG. 2, the handle base 31a surrounds the downstream pipe-like portion 21a of the proximal pipe 21 so as not to move in the axial direction, and is attached to be rotatable in the circumferential direction of the downstream pipe-like portion 21a. ing. A protruding stopper 32 is integrally formed on the inner surface of the handle base 31a. The stopper portion 32 is inserted into the connecting groove 9 as shown in FIGS.

  When the hand handle 31 is rotated in the clockwise direction in FIG. 3, the stopper portion 32 comes into contact with the left rotation preventing portion 23 in FIG. As a result, the clockwise rotation of the hand handle 31 is restricted, and the hand handle 31 is held sideways. Similarly, when the hand handle 31 is rotated counterclockwise in FIG. 3, the stopper portion 32 comes into contact with the right-hand detent portion 23 in FIG. As a result, the counterclockwise rotation of the hand handle 31 is restricted, and the hand handle 31 is held sideways. By restricting the rotation at these positions, the hand handle 31 can be prevented from rotating indefinitely, and an excessive load can be prevented from being applied to the electric wire 34 described later.

  The handle portion 31 b is separated from the upstream end of the dust suction hose 5 and the cover 11. As shown in FIG. 2, an operation panel 33 is attached to the handle portion 31 b and is exposed on the surface to give a control command for the operation of the electric blower. The operation panel 33 has a plurality of touch operation buttons as shown in FIG. In FIG. 2, reference numeral 34 denotes an electric wire drawn out from the operation panel 33 to the back side. These electric wires 34 are connected to a plurality of contact pieces 35 that protrude and are attached to the back side of the stopper 22. Each contact piece 35 elastically contacts the corresponding slip ring 12 by its spring force.

  The handle lock means 41 holds the hand handle 31 in a state where it is disposed on the upper side of the hand pipe 21 as shown in FIGS. 2 and 4, and the hand handle 31 with respect to the hand pipe 21 is released in this state. It allows rotation. The handle lock means 41 includes the lock portion 22b, a lock member 42, and a lock spring 43.

  The lock member 42 is slidably attached to a guide portion 44 formed at the base portion of the handle portion 31b. The hand pipe side end of the lock member 42 can be inserted into and removed from the lock part 22b of the hand pipe 21 from above. The lock spring 43 biases the lock member 42 toward the stopper 22. Thereby, the end portion on the hand pipe side is inserted into the lock portion 22b, and the state (FIGS. 2 to 4) in which the handle portion 31b is arranged on the upper side of the hand pipe 21 is maintained.

  A slide hole 45 communicating with the inside of the guide portion 44 is opened at the base portion of the handle portion 31b. An operation knob 42 a provided so as to be bent from the other end of the lock member 42 is passed through the slide hole 45. The operation knob 42 a is an index finger of the operator's hand holding the handle 31 b and can be pulled up against the lock spring 43. By the movement of the lock member 42 accompanying this operation, the lock member 42 is removed from the lock portion 22b, and the hand handle portion 31 is allowed to rotate.

  As shown in FIG. 1, the extension pipe 51 is, for example, a double-joint type in which an upstream pipe body 52 and a downstream pipe body 53 are combined so as to be extendable and contractible. As shown in FIG. 2, the downstream end 53a of the downstream tube 53 is detachably fitted inside the upstream pipe portion 21b. A locking groove 53b is formed on the outer periphery of the downstream end 53a, and the locking button 26a is engaged with the locking groove 53b, whereby the connection between the extension pipe 51 and the proximal pipe 21 is maintained. . In this state, the extension pipe 51 and the downstream dust suction hose 5 are communicated with each other via the hand pipe 21.

  As shown in FIGS. 5A and 5B and FIGS. 6A and 6B, the suction port body 55 is suitable for cleaning the floor surface in the room, and includes a suction head 56 and a connecting pipe 57. It has.

  As shown in FIG. 1, the suction head 56 has a suction opening 56a formed on its lower surface so as to extend in the left-right direction. The connection pipe 57 is connected to the center of the rear portion of the suction head 56 via a universal joint 58 and protrudes rearward of the suction head 56. The connection pipe 57 is detachably connected to the upstream end of the extension pipe 51, that is, the tip of the upstream pipe body 52. In FIG. 1, reference numeral 59 denotes a locking mechanism that maintains the connection between the connection pipe 57 and the upstream pipe body 52, and this has the same configuration as the locking mechanism 26.

  The universal joint portion 58 includes a head side joint pipe 60 having a bifurcated convex portion 60 a and an extension pipe side joint pipe 61. The head-side joint pipe 60 protrudes rearward from the central portion in the left-right direction of the suction head 56 and can rotate around a central axis X (see FIG. 5A) extending in the front-rear direction of the suction head 56. . The extension pipe side joint pipe 61 protrudes from the tip of the upstream side pipe body 52 and is pivotally attached to the bifurcated convex part 60a. As shown in FIG. 5A, the extension pipe side joint pipe 61 can rotate around a straight line Y that passes through the bifurcated convex portion 60a and is orthogonal to the central axis X. The recess between the bifurcated convex portion 60 a forms a relief portion 60 b of the head side joint pipe 60.

  Next, the normal cleaning operation | work which cleans the indoor floor F using the vacuum cleaner 1 is demonstrated with reference to FIG. 7 (A) (B).

  In the case of this cleaning, the handle lock means 41 is in the state shown in FIGS. That is, the lock member 42 is engaged with the lock portion 22 b and is held so that the handle portion 31 b of the hand handle 31 is raised above the hand pipe 21. At the same time, the extension pipe 51 extending over the hand pipe 21 and the suction port body 55 and the connection pipe 57 of the suction port body 55 are in a state where they are raised obliquely starting from the universal joint 58 as shown in FIG. is there. When this state is seen in a plan view, the extension pipe 51 is in a state of extending straight behind the suction port body 55 as shown in FIG. In this case, as shown in FIGS. 5A and 5B, the head side joint pipe 60 of the universal joint portion 58 has the bifurcated convex portions 60a arranged on the left and right sides and the relief portion 60b therebetween. Has been placed.

  Therefore, the dust on the floor surface F is moved while the suction port body 55 is moved back and forth along the floor surface F as the user grasps the handle portion 31b and pushes and pulls it while operating the electric blower. Then, the air can be sucked from the suction opening 56a and collected in the cleaner body 2 through the dust suction air passage body 3. In this case, since the hand handle 31 is connected to the hand pipe 21 by the handle lock means 41 so as not to move, the usability in the normal use state performed by raising the extension pipe 51 obliquely is not impaired. .

  In addition, due to this connection, when the hand handle 31 is operated to be twisted, the operating force is reliably transmitted to the universal joint portion 58 via the extension pipe 51. Therefore, as the head-side joint pipe 60 is rotated around the central axis X according to the twisting direction, the direction of the suction port body 55 is changed obliquely, and the suction port body 55 can be pushed and moved in that direction. .

  By the way, as shown in FIGS. 7A and 7B, the floor F under the bed B shown in FIGS. 8A and 8B is cleaned while the extension pipe 51 is raised obliquely. If the suction inlet body 55 is inserted to a certain depth with respect to the space below the bed B, the oblique extension pipe 51 interferes with the bed B, and further advancement is difficult. Furthermore, even if the extension pipe 51 is tilted down from the state shown in FIG. 7A, the extension pipe 51 is connected to the floor surface as shown in FIG. Cannot be in contact with F. Therefore, even if the suction port body 55 is inserted to a depth in the space below the bed B in this state, the oblique extension pipe 51 interferes with the bed B, and further advancement becomes difficult.

  In this case, it can be handled as follows. First, a finger is put on the operation knob 42a of the handle lock means 41, the lock member 42 is pulled up against the lock spring 43, and the lock member 42 is removed from the lock portion 22b. Thereby, the lock of the hand handle 31 with respect to the hand pipe 21 is released, and the hand handle 31 can rotate around the hand pipe 21.

  Next, the hand handle 31 and the hand pipe 21 are relatively rotated by moving the hand handle 31 in a direction in contact with the floor surface F in this state. Specifically, the hand pipe 21 connected to the extension pipe 51 via the locking mechanism 26 is not rotated, but the hand handle 31 is relatively rotated along the hand pipe 21. The Thereby, the state in which the handle portion 31b of the hand handle 31 is disposed on the upper side of the hand pipe 21 is maintained, so that the wrist of the user's hand holding the handle portion 31b is not forcibly bent.

  6 (A) and 6 (B), the head side joint pipe 60 of the universal joint portion 58 is rotated so that the bifurcated convex portions 60a are aligned in the vertical direction as shown in FIGS. As shown in FIG. 8 (A), the extension pipe 51 is brought down to a state substantially parallel to the floor surface F. When this state is seen in a plan view, the extension pipe 51 is bent obliquely starting from the universal joint portion 58 with respect to the suction port body 55 as shown in FIG.

  6 (A), 6 (B) and 8 (A), 8 (B) show an example in which the extension pipe 51 is tilted to the left with reference to the user. Conversely, the extension pipe 51 is placed on the right side. Even when it is tilted, for the same reason, the handle portion 31b is maintained facing upward as in the normal use state, so that the wrist of the user's hand holding the handle portion 31b is forcibly bent. There is nothing.

  Therefore, the suction port body 55 is moved back and forth along the floor surface F without being obstructed by the bed B as the dust suction air passage body 3 is pushed and pulled by the user's hand holding the handle portion 31b. Thus, the floor surface F below the bed B can be cleaned. In this case, since the wrist of the user's hand is not forcibly bent as described above, the push / pull operation can be easily performed in the same manner as normal cleaning, which is convenient.

  In the first embodiment, the handle lock means 41 has the operation knob 42a disposed on the back side of the root portion of the handle portion 31b, so that the handle lock means 41 can be operated with a hand holding the handle portion 31b. This is preferable in that the handle lock means 41 is not easily operated. However, in the present invention, the handle lock means 41 can also be provided so as to be operated with the other hand not gripping the handle portion 31b.

  In the embodiment, the restriction of the rotation angle of the hand handle 31 is performed in the connecting groove 9 for preventing the connecting pipe portion 7 of the dust suction hose 5 from coming off from the hand pipe 21. It can also be done elsewhere.

  Further, when restricting the rotation angle of the hand handle 31 in the connecting groove 9, the handle base 31 a is used in a state where the stopper 22 is used as a stopper portion and the handle portion 31 b is disposed on the upper side of the hand pipe 21. For example, a protrusion-shaped detent portion 23 is provided at a position separated from the stopper 22 by approximately 90 degrees on the inner surface of the handlebar, and the rotation angle of the hand handle 31 can be restricted by contacting the detent portion 23 with the stopper 22. Is possible.

  Moreover, although the said one embodiment is an example implemented about the vacuum cleaner provided with the hand handle bent in the shape of a dogleg, the present invention is a vacuum cleaner which is not bent and has a straight tube shape. It is also applicable to.

The perspective view which shows the vacuum cleaner which concerns on one Embodiment of this invention. Sectional drawing which expands and shows the attaching part of the hand handle of the vacuum cleaner of FIG. Sectional drawing which follows the F3-F3 line | wire in FIG. Sectional drawing which follows the F4-F4 line | wire in FIG. (A) is the perspective view which showed the suction inlet body of the vacuum cleaner of FIG. 1 in the normal use state in which the connection pipe protrudes diagonally up back. (B) is the side view which showed the suction inlet body seeing from the F5B direction in FIG. 5 (A). (A) is the perspective view which showed the suction inlet body of the vacuum cleaner of FIG. 1 in the use condition by which the connecting pipe was fallen. (B) is the side view which showed the suction inlet body seeing from the F6B direction in FIG. 6 (A). (A) And (B) is the side view and top view which showed the positional relationship of a suction inlet body and a hand handle when the vacuum cleaner of FIG. 1 is in a normal use state. (A) And (B) is the side view and top view which showed the positional relationship of a suction inlet body and a hand handle when it is in the use condition which cleans the bottom of a bed with the vacuum cleaner of FIG.

Explanation of symbols

  DESCRIPTION OF SYMBOLS 1 ... Vacuum cleaner, 2 ... Vacuum cleaner main body, 5 ... Dust suction hose, 7 ... Connection pipe part, 21 ... Hand pipe, 21a ... Downstream pipe-like part, 21b ... Upstream pipe-like part, 22 ... Stopper, 22a ... Detachment part, 22b ... Lock part, 23 ... Non-rotation part, 31 ... Hand handle, 31a ... Handle base part, 31b ... Handle part, 32 ... Stopper part, 41 ... Handle lock means, 42 ... Lock member, 42a ... Operation knob Part, 43 ... lock spring, 51 ... extension pipe, 55 ... suction port, 56 ... suction head, 57 ... connecting pipe, 58 ... universal joint part

Claims (1)

A vacuum cleaner main body, a suction head and a suction port body in which a connection pipe protruding from the head is connected by a universal joint, an extension pipe connected to the connection pipe, and a dust suction hose connected to the vacuum cleaner main body In addition, in the vacuum cleaner connected to the dust suction hose and the extension pipe, connected to the dust suction hose and the extension pipe through a hand pipe provided with a hand handle,
The hand handle is separate from the hand pipe, and the hand handle is rotatably attached around the hand pipe, and holds the hand handle in a state of being arranged above the hand pipe. A vacuum cleaner comprising handle lock means for allowing rotation of the hand handle around the hand pipe in a state in which is released.

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