JP2019202049A - Vacuum cleaner - Google Patents

Abstract

To provide a vacuum cleaner capable of allowing an extension pipe to stably stand up without time and labor when interrupting a cleaning work.SOLUTION: A vacuum cleaner includes: a cleaner body; a flexible hose to be connected to the cleaner body; an extension pipe to be connected to the flexible hose; a suction port body to be connected to the extension pipe; and a holding part for holding a middle part in a longitudinal direction of the flexible hose and a middle part in a longitudinal direction of the extension pipe to keep them in a proximity state so as to keep a standing-up state of the extension pipe. The holding part includes: a first holding portion arranged in the middle part of the flexible hose; and a second holding portion arranged in the middle part of the extension pipe. The first holding portion and the second holding portion are constituted to be attracted to each other by magnetic force.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a vacuum cleaner.

  As a conventional vacuum cleaner, for example, as described in Patent Documents 1 and 2, a vacuum cleaner main body, a flexible hose connected to the vacuum cleaner main body, and an upstream end of the flexible hose There is a canister type vacuum cleaner provided with a handle and an operation part provided in the part, an extension pipe connected to the flexible hose, and a suction port connected to the extension pipe.

  The vacuum cleaner described in Patent Document 1 can be adsorbed by a holding part having a magnet provided at the rear part of the vacuum cleaner body and a magnet provided on the back side of the connecting pipe part connected to the extension pipe in the suction port body. A holding portion having a magnetic material, and the holding portion is attracted to the holding portion by a magnetic force so that the extension tube can be stood up and stored.

  The electric vacuum cleaner of Patent Document 2 includes a bent hose provided at an upstream end of a flexible hose, a stop pin and a stop groove provided at both ends of the bent hose, and a connecting portion in the cleaner main body. A locking portion provided in the vicinity and a hook provided on the back side of the extension tube are provided, and the hook of the extension tube is locked to the locking portion of the cleaner body which is erected. By bending the hose into a U shape and inserting the stop pin into the stop groove, the extension tube can be held in a vertical state and stored.

Japanese Patent No. 6121756 JP 2006-346115 A

  In the electric vacuum cleaner of Patent Document 1, the extension pipe can be raised even when the user temporarily interrupts the cleaning operation during use, but the user goes around to the rear of the main body of the vacuum cleaner. Therefore, since the operation of adsorbing the held portion on the extension tube side to the holding portion on the cleaner body side is necessary, this operation is troublesome for the user.

  Further, in the electric vacuum cleaner of Patent Document 2, when the cleaning operation is interrupted, the bent hose is bent into a U shape, the stop pin is inserted into the stop groove, and the extension pipe is erected vertically with respect to the floor surface. When the hand is released, the bent hose bent in the U shape is pulled toward the flexible hose, so that the extension tube and the longitudinal intermediate portion of the flexible hose are opened apart from each other. As a result, the weight around the handle cannot be supported by the extension pipe, and it is assumed that the extension pipe loses balance and falls in the left-right direction.

  This invention is made | formed in view of such a subject, and it aims at providing the vacuum cleaner which can raise an extension pipe stably without trouble when interrupting cleaning operation | work.

According to the present invention, a vacuum cleaner main body, a flexible hose connected to the vacuum cleaner main body, an extension pipe connected to the flexible hose, and a suction port connected to the extension pipe, A holding portion for holding the intermediate portion in the longitudinal direction of the flexible hose and the intermediate portion in the longitudinal direction of the extension tube in a close state so as to maintain the standing state of the extension tube;
The holding part has a first holding part provided in the intermediate part of the flexible hose, and a second holding part provided in the intermediate part of the extension pipe,
There is provided a vacuum cleaner (first invention) configured such that the first holding part and the second holding part are attracted to each other by magnetic force.

Moreover, according to this invention, the vacuum cleaner main body, the flexible hose connected with the said vacuum cleaner main body, the extension pipe | tube connected with the said flexible hose, and the suction inlet connected with the said extension pipe | tube And
The suction port body has a suction port main body, and a connecting pipe portion that connects the suction port main body to the extension pipe,
The connecting pipe portion is connected to the suction port main body so as to be able to swing forward at an angle larger than 90 ° with respect to the floor surface so that the extension pipe can maintain an upright state. Invention).

  According to the canister type electric vacuum cleaner of the present invention, when cleaning is temporarily stopped while cleaning is temporarily stopped during cleaning, the first holding part and the second holding part are The extension pipe can be made to stand by approaching.

  According to the second invention, when the extension pipe is erected, the extension pipe is inclined toward the flexible hose side and the extension pipe by tilting the extension pipe slightly forward rather than perpendicular to the floor surface. Since the force that tilts forward antagonizes, the standing state of the extension tube can be stably maintained.

It is a left view which shows the use condition of the vacuum cleaner of Embodiment 1 of this invention. It is a left view which shows the use interruption state of the vacuum cleaner of Embodiment 1. It is a left view which shows the suction inlet used for the vacuum cleaner of Embodiment 1. It is a longitudinal cross-sectional view which shows the adsorption state by the magnetic force of the 1st and 2nd holding | maintenance part in the vacuum cleaner of Embodiment 1. It is a longitudinal cross-sectional view which shows the adsorption state by the magnetic force of the 1st and 2nd holding | maintenance part in the vacuum cleaner of Embodiment 2. It is a longitudinal cross-sectional view which shows the adsorption state by the magnetic force of the 1st and 2nd holding | maintenance part in the vacuum cleaner of Embodiment 3, (A) is a lock release state, (B) is a lock state. It is a longitudinal cross-sectional view which shows the adsorption state by the magnetic force of the 1st and 2nd holding | maintenance part in the vacuum cleaner of Embodiment 4, (A) is a lock release state, (B) is a lock state. It is a left view which shows the vacuum cleaner of Embodiment 5 of this invention. It is a left view which shows the suction inlet used for the vacuum cleaner of Embodiment 5. It is a left view which shows the vacuum cleaner of Embodiment 6 of this invention.

(Embodiment 1)
FIG. 1 is a left side view showing a usage state of the electric vacuum cleaner according to Embodiment 1 of the present invention, and FIG. 2 is a left side view showing an interruption state of use of the electric vacuum cleaner according to Embodiment 1. FIG. 3 is a left side view showing a suction port used in the electric vacuum cleaner of the first embodiment, and FIG. 4 shows an adsorption state by the magnetic force of the first and second holding parts in the electric vacuum cleaner of the first embodiment. It is a longitudinal cross-sectional view shown. 1 and 2, the arrow X direction indicates the front-rear direction, the arrow Y direction indicates the left-right direction, and the arrow Z direction indicates the up-down direction.

  The vacuum cleaner 1 includes a vacuum cleaner body 10, a flexible hose 20 connected to the vacuum cleaner body 10, an extension pipe 30 connected to the flexible hose 20, and a suction connected to the extension pipe 30. The holding body 50 that holds the mouth portion 40 and the intermediate portion 21a in the longitudinal direction of the flexible hose 20 and the intermediate portion 31a in the longitudinal direction of the extension tube 30 so as to maintain the standing state of the extension tube 30. Is a canister type vacuum cleaner. Note that the intermediate portion 21a in the longitudinal direction of the flexible hose 20 means a range of about 1/3 of the entire length including the intermediate point in the longitudinal direction of the flexible hose 20, and the intermediate portion in the longitudinal direction of the extension tube 30. 31a means a range of about 1/3 of the total length including the midpoint of the extension pipe 30 in the longitudinal direction.

<Vacuum cleaner body>
As shown in FIGS. 1 and 2, the cleaner body 10 includes a drive device 11 having a pair of left and right wheels 11 a and a front wheel 11 b, and a dust collection unit 12 and a battery 13 that are detachably attached to the drive device 11. Prepare.
The driving device 11 includes an electric blower (not shown) housed therein, a concave dust collecting unit mounting portion 11c provided on the upper surface side, and a concave battery mounting provided at the rear portion of the dust collecting unit mounting portion 11c. 11 d, a front end connection portion 11 e provided at the front portion so as to be connectable to the flexible hose 20, and an exhaust port 11 f provided at the rear portion.
The tip connection portion 11e is provided with a female terminal (not shown) for supplying electric power from the battery 13 to a rotary brush motor 41c of the suction port body 40 described later.

Dust collecting unit 12 includes a dust cup 12a, a centrifugal separation unit 12b that is mounted detachably to the opening 12a ₁ of the dust cup 12a.
The dust cup 12 a has an air inlet (not shown) that can be connected to an air outlet (not shown) provided in the dust collection unit mounting portion 11 c of the driving device 11.

The centrifuge unit 12b includes a cylindrical cup part 12b ₁ that is detachably attached to the opening 12a ₁ of the dust cup 12a, and a cylinder that is detachably coupled to the cup part 12b ₁ and is accommodated in the dust cup 12a. shape of the mesh portion (not shown), a filter unit which is removably housed in the cup portion 12b ₁ (not shown), a cover portion 12b ₂ which is releasably coupled to the cup portion 12b ₁ to cover the filter unit Have
The cover 12b ₂ has an air outlet (not shown) that can be connected to an air inlet (not shown) provided in the dust collection unit mounting portion 11c of the driving device 11.

  According to the vacuum cleaner body 10 configured as described above, when the electric vacuum cleaner 1 performs cleaning, the electric blower of the driving device 11 is driven, so that air containing dust flows into the tip connection portion 11e and the air The dust flows into the dust cup 12a from the air inlet of the dust collecting unit 12 through the outlet, and the relatively large first dust is centrifuged from the air in the dust cup. Moreover, the air containing the 2nd dust smaller than the 1st dust passes the mesh part of the said centrifuge unit, and a 2nd dust is capture | acquired by the said filter part. Further, the air from which the second dust has been removed passes through the filter part, flows into the driving device 11 from the air inlet of the dust collecting unit mounting part 11c through the air discharge port, and passes through the electric blower. Then, it is discharged to the outside from the exhaust port 11f.

<Flexible hose>
As shown in FIGS. 1, 2, and 4, a hose body 21 having a spirally wound conductive wire 21 w on the outer periphery, and a driving device for the cleaner body 10 provided at the downstream end of the hose body 21. A distal end connection portion 22 detachably connected to the distal end connection portion 11 e, a distal end connection portion 23 provided at an upstream end portion of the hose body 21 and detachably connected to the extension pipe 30, and a distal end connection portion 23. A handle 24 and an operation switch unit 25 provided integrally with each other.
The operation switch unit 25 is provided with, for example, a power ON / OFF switch and a suction strength switch.
Note that the hose body 21 of the flexible hose 20 in FIGS. 1 and 2 is simplified in illustration, and the lead wire 21w in FIG. 4 is simplified in illustration.

The proximal end connecting portion 22 is provided with a male terminal (not shown) that can be electrically connected to the female terminal provided at the distal end connecting portion 11e of the driving device 11 of the cleaner body 10.
Further, the distal end connecting portion 23 is provided with a female terminal (not shown) that can be electrically connected to a male terminal (not shown) provided at a proximal end connecting portion 32 of the extension tube 30 described later. .
In addition, the male terminal of the proximal end connection portion 22 and the female terminal of the distal end connection portion 23 are electrically connected to each other via a lead wire 21w, a lead wire, an operation switch portion 25, and the like.

<Extension pipe>
As shown in FIGS. 1, 2, and 4, the extension tube 30 includes a tube main body 31, a proximal end connection portion 32 that is detachably connected to the distal end connection portion 32 of the flexible hose 20, and a suction port body 40. And a tip connecting portion 33 detachably connected.
The proximal end connection portion 32 is provided with a male terminal (not shown) that can be electrically connected to the female terminal of the distal end connection portion 23 of the flexible hose 20.
Further, the distal end connecting portion 33 is provided with a female terminal (not shown) that can be electrically connected to a male terminal 43a provided in a connecting pipe portion 43 of the suction port body 40 described later.
Further, the male terminal of the proximal end connection portion 32 and the female terminal of the distal end connection portion 33 are electrically connected to each other via a lead wire (not shown) extending in the longitudinal direction provided along the outer surface of the tube body 31. ing. In FIG. 3, this conductor is not shown.

<Suction port>
As shown in FIGS. 1 to 3, the suction port body 40 includes a suction port body 41 and a joint portion coupled to the suction port body 41 so as to be rotatable in the left-right direction around the first axis P ₁ in the front-rear direction. 42 and a connecting pipe portion 43 coupled to the joint portion 42 so as to be swingable (turnable) in the front-rear direction (arrow A direction) around the second axis P ₂ in the left-right direction.

  The suction port body 41 includes a suction port 41a provided on the bottom surface of the casing that constitutes the outline of the suction port body 41, a rotating brush 41b that is rotatably provided in the vicinity of the suction port 41a in the casing, and a rotating brush. The rotary brush motor 41c provided in the housing so as to rotationally drive 41b, and a rotational force transmission mechanism (not shown) that transmits the rotational force from the output shaft of the rotary brush motor 41c to the rotary brush 41b. Pulley and timing belt) and a rear wheel 41d provided at the rear of the housing.

The connecting pipe portion 43 has the male terminal 43a that can be electrically connected to the female terminal of the tip connecting portion 33 of the extension pipe 30. The male terminal 43a is connected via a lead wire (not shown). The rotary brush motor 41c is electrically connected.
Further, in a state where the suction port body 40 is placed on the floor surface F, the connecting pipe portion 43 can swing (rotate) forward with respect to the floor surface F to a predetermined angle θ ₁ . In the first embodiment, the predetermined angle θ ₁ is set to approximately 90 °.

(Holding part)
As shown in FIGS. 1, 2, and 4, the holding portion 50 includes a first holding portion 51 attached to the surface side of the intermediate portion 21 a in the longitudinal direction of the flexible hose 20, and the longitudinal direction of the extension tube 30. The second holding part 52 attached to the back side of the intermediate part 31a is configured such that the first holding part 51 and the second holding part 52 are attracted to each other by magnetic force.

The 1st holding | maintenance part 51 has the belt 51a wound around the intermediate part 21a of the flexible hose 20, and the magnet 51b embedded in the belt 51a.
The second holding part 52 includes a holder 52a fixed to the intermediate part 31a of the extension pipe 30 by a fixing member such as an adhesive or a screw, and a magnet 52b embedded in the holder 52a.
The magnets 51b and 52b are not particularly limited, and a general ferrite magnet is used in the first embodiment.

The first and second holding parts 51 and 52 are, for example, formed by insert molding for wrapping a magnet with resin, or a part covering the magnet is composed of two parts, and are bonded or fused with them to be integrated. Can be formed. At this time, a part of the magnet may be exposed to the outside.
Further, the belt 51a of the first holding part 51 can correspond to the thickness of the intermediate part 21a of the flexible hose 20, and the inner surface thereof does not slip with respect to the intermediate part 21a of the flexible hose 20. Thus, for example, a non-slip sheet such as a rubber sheet or a foamed resin sheet may be attached.

(About the effect of the holding part)
As shown in FIG. 1, when cleaning the floor F with the vacuum cleaner 1, the user pushes the power ON / OFF switch of the operation switch unit 25 to drive the electric blower, and holds the handle 24 and holds the suction port. The body 40 is reciprocated in the front-rear direction (arrow B direction). At this time, the rotating brush 41b (FIG. 3) rotates and dust on the floor surface F is sucked into the suction port 40 together with air, and the dust containing air passes through the extension tube 30 and the flexible hose 20 and is cleaned. It flows into the machine main body 10 and dust is captured in the dust collecting unit 12 as described above.

  When it is desired to temporarily stop the cleaning when cleaning the floor surface F, the user presses the power ON / OFF switch of the operation switch unit 25 to stop the electric blower, and the extension pipe 30 is connected to the user side (flexible When the extension tube 30 is raised as shown in FIG. 2, the second holding portion 52 on the extension tube 30 side approaches the first holding portion 51 on the flexible hose 20 side. These adsorb to each other by magnetic force.

  That is, according to the vacuum cleaner 1 of the present invention, the second holding portion 52 on the extension tube 30 side is moved to the first holding portion 51 on the flexible hose 20 side by pulling the suction port body 40 toward the front (user side). Since these are naturally adsorbed to each other by magnetic force, the longitudinal intermediate portion 21a of the flexible hose 20 and the longitudinal intermediate portion 31a of the extension tube 30 are naturally bundled, and the extension tube 30 can be erected substantially perpendicularly to the floor surface F. Therefore, the user can stop the cleaning by stopping the cleaning without the trouble of laying the extension pipe 30 on the floor surface F and the trouble of binding the flexible hose 20 and the extension pipe 30 with the binding tool. You can leave. At this time, since the flexible hose 20 and the extension pipe 30 are in a bundled state, the extension hose 20 supports the extension pipe 30 so as not to fall backward. Is stably maintained.

When the cleaning is resumed, the user holds the handle 24 and pushes the suction port 40 forward, so that the standing extension tube 30 is inclined and the second holding portion 52 is naturally separated from the first holding portion 51. (FIG. 1), the user can resume cleaning without the need for releasing the binding between the flexible hose 20 and the extension pipe 30.
The user pulls the vacuum cleaner main body 10 to bring the extension tube 30 and the flexible hose 20 close to each other, and the first and second holding portions 51 and 52 are attracted to each other by a magnetic force so as to be flexible. And the extension pipe 30 can be bundled, and the extension pipe 30 can be erected almost perpendicularly to the floor surface F.

(Embodiment 2)
FIG. 5 is a longitudinal cross-sectional view showing the suction state by the magnetic force of the first and second holding portions in the electric vacuum cleaner of the second embodiment. In FIG. 5, elements similar to those in FIG. 4 are denoted by the same reference numerals.
The vacuum cleaner according to the second embodiment is configured in the same manner as in the first embodiment except that the configuration of the holding unit 150 is different from that in the first embodiment.

In the case of the second embodiment, the holding portion 150 includes a first holding portion 51 similar to the first embodiment attached to the intermediate portion 21a in the longitudinal direction of the flexible hose 20, and an intermediate portion 131a in the longitudinal direction of the extension tube 130. And a second holding portion 152 provided in the.
The second holding part 152 has a magnetic body 152a embedded in the intermediate part 131a of the extension pipe 130. As this magnetic body 152a, for example, iron, cobalt, nickel, stainless steel, etc. adsorbed by a magnet and magnetic force are used. A thin metal piece (thickness of about 1 to 2 mm) can be mentioned.

  In this case, the tube body 131 of the extension tube 130 in which the magnetic body 152a is embedded is formed by insert molding, or a recess is formed in the outer surface of the tube body 131, and the magnetic body 152a is stored in the recess and then covered with another component. Then, the second holding part 152 can be formed by fixing by adhesion or fusion. At this time, a part of the magnetic body 152a may be exposed to the outside.

According to the holding unit 150 of the second embodiment, it is possible to obtain the extension tube 130 having a clean appearance and a good appearance. In addition, the flow path of the tube main body 131 is partially narrowed by embedding the magnetic body 152a, but there is almost no influence on the attraction performance by making the magnetic body 152a thinner.
Note that a mark may be provided on the outer surface of the tube body 131 so that the user can visually recognize the position of the second holding portion 152.

(Embodiment 3)
FIGS. 6A and 6B are longitudinal sectional views showing a suction state by the magnetic force of the first and second holding portions in the electric vacuum cleaner of Embodiment 3, wherein FIG. 6A is an unlocked state, and FIG. In FIG. 6, the same elements as those in FIG. 4 are denoted by the same reference numerals.
The vacuum cleaner of the third embodiment is also configured in the same manner as in the first embodiment except that the configuration of the holding unit 250 is different from that in the first embodiment.

In the case of the third embodiment, the holding unit 250 includes a first holding unit 251 having a belt 251a that holds the magnet 51b and a second holding unit 252 having a holder 252a that holds the magnet 52b, as in the first embodiment. Further, a locking recess 252a ₁ provided in the holder 252a of the second holding portion 252 and a locking protrusion provided on the belt 251a of the first holding portion 251 so as to be detachably locked to the locking recess 252a _1. Part 251a ₁ .
Further, in the first holding portion 251, a notch recess 251a ₂ is formed in the upper part of the magnet embedded portion of the belt 251a, and a hook-shaped locking projection 251a ₁ can swing in the notch recess 251a _2. It is pivotally attached to.

  As shown in FIG. 6A, the holding part 250 of the third embodiment also has a flexible hose 20 because the first holding part 251 and the second holding part 252 are adsorbed by magnetic force as in the first embodiment. The extension pipe 30 is bundled and the standing state of the extension pipe 30 can be maintained when cleaning is interrupted. Further, if the extension tube 30 is moved to the opposite side of the flexible hose 20, the first holding part 251 and the second holding part 252 are easily separated from each other, so that cleaning can be resumed immediately.

In the case of the third embodiment, as shown in FIG. 6B, when the first holding portion 251 and the second holding portion 252 are attracted by the magnetic force, the locking convex portion 251a ₁ is swung downward (turned). dynamic) is allowed to by locking the locking recess 252a _1, it can be locked with the first holding portion 251 a suction state of the second holding portion 252. In this state, for example, it is possible to prevent the first holding unit 251 and the second holding unit 252 from being unexpectedly separated when going up and down stairs with a vacuum cleaner. Further, when cleaning is resumed, the locking projection 251a ₁ is picked up with a finger and swung (rotated) upward to release from the locking recess 252a ₁ to release the lock.
In the locked state shown in FIG. 6 (B), the flexible hose 20 and the extension pipe 30 are firmly bound, so that it is possible to accommodate a case where the vacuum cleaner is housed.

(Embodiment 4)
FIGS. 7A and 7B are longitudinal sectional views showing an adsorption state by the magnetic force of the first and second holding portions in the electric vacuum cleaner of Embodiment 4, wherein FIG. 7A is an unlocked state, and FIG. In FIG. 7, the same elements as those in FIG. 5 are denoted by the same reference numerals.
The vacuum cleaner of Embodiment 4 is configured in the same manner as in Embodiment 2 except that the configuration of the holding unit 350 is different from that in Embodiment 2.

In the case of the fourth embodiment, the holding portion 350 includes a first holding portion 351 having a belt 351a for holding the magnet 51b and a second holding portion 352 having a magnetic body 152a, as in the second embodiment. 2 A pair of locking recesses 352a ₁ having a pair of locking claws 352a ₁₁ provided in the holding part 352, and a pair of belts 351a of the first holding part 351 so as to be detachably locked in the locking recess 352a _1. And a locking projection 351a ₁ having a locking piece 351a ₁₁ .

The pair of locking pieces 351a ₁₁ of the locking projection 351a ₁ are provided so as to protrude in the vertical direction from the upper and lower surfaces of the portion of the belt 351a that holds the magnet 51b.
The locking concave portion 352a ₁ is a concave portion into which the locking convex portion 351a ₁ is fitted when the first holding portion 351 and the second holding portion 352 are attracted by magnetic force, and is fitted into the locking concave portion 352a ₁ . A pair of locking claws 352a ₁₁ are provided at positions where the locking projections 351a ₁ are locked to the pair of locking pieces 351a ₁₁ .

In the case of the fourth embodiment, as shown in FIG. 7A, when the first holding portion 351 and the second holding portion 352 are brought close to each other, they are attracted to each other by a magnetic force, and the pair of locking pieces 351a ₁₁ are paired with a pair of locking claws The flexible hose 20 and the extension tube 330 are bundled, although they do not enter the locking recess 352a ₁ by hitting 352a ₁₁ . Therefore, when the cleaning is interrupted, the standing state of the extension tube 330 can be maintained, and if the extension tube 330 is moved to the side opposite to the flexible hose 20, the first holding portion 351 and the second holding portion 352 are simple. Therefore, cleaning can be resumed.

In the case of Embodiment 4, when the first holding part 351 and the second holding part 352 are attracted to each other by magnetic force (FIG. 7A), the locking convex part 351a _{1 is connected} to the locking concave part 352a. _When pushed into ₁ , the pair of locking claws 352a ₁₁ are elastically deformed and opened, so that the pair of locking pieces 351a ₁₁ get over the pair of locking claws 352a ₁₁ as shown in FIG. Lock to. As a result, the first holding part 351 and the second holding part 352 are completely attracted to each other by the magnetic force. Even in this state, it is possible to prevent the first holding part 351 and the second holding part 352 from being unexpectedly separated when going up and down the stairs with a vacuum cleaner.

When restarting the cleaning, if the extension tube 330 is moved to the opposite side of the flexible hose 20, the pair of locking pieces 351a ₁ and the pair of locking claws 352a ₁₁ are separated from each other and locked. Is released and cleaning can be resumed.
In the locked state shown in FIG. 7 (B), the flexible hose 20 and the extension pipe 330 are firmly bound, so that it is possible to accommodate a case where the vacuum cleaner is housed.

(Embodiment 5)
FIG. 8 is a left side view showing a vacuum cleaner according to a fifth embodiment of the present invention, and FIG. 9 is a left side view showing a suction port used in the vacuum cleaner according to the sixth embodiment. 8 and 9, the same reference numerals are given to the same elements as those in FIGS. 1 to 3.
The vacuum cleaner 401 of the fifth embodiment includes the same vacuum cleaner main body 10, the flexible hose 20, and the extension pipe 30 as those of the first embodiment, and a suction port body having a different configuration from the suction port body 40 of the first embodiment. 440, and the holding part 50 in Embodiment 1 is omitted.

As shown in FIGS. 8 and 9, the suction port body 440 according to the fifth embodiment includes the same suction port body 41 and the joint portion 42 as those of the first embodiment, and the connection portion with the joint portion 42 is thin. A connecting pipe portion 443 having a constricted portion 443a is provided.
In the suction port body 440, the connecting pipe portion 440 having the constricted portion 443a can swing (rotate) forward at an angle θ ₂ (for example, about 92 to 94 °) larger than 90 ° with respect to the floor surface F. Further, the suction port body 41 is connected to the suction port body 41 via the joint portion 42. In addition, in the suction inlet 440 in Embodiment 5, other structures are the same as in Embodiment 1.

According to the vacuum cleaner 401 of the fifth embodiment, as shown in FIG. 8, the suction port body 440 is pulled toward the front (user side) and the extension pipe 30 is inclined slightly forward from the vertical with respect to the floor surface F. Thus, the force with which the extension tube 30 is drawn toward the flexible hose 20 and the force with which the extension tube 30 is tilted forward antagonize, so that the standing state of the extension tube 30 can be stably maintained.
Moreover, when restarting cleaning, cleaning can be restarted without trouble by simply moving the suction port 440 forward.

(Embodiment 6)
FIG. 10: is a left view which shows the vacuum cleaner of Embodiment 6 of this invention. In FIG. 10, elements similar to those in FIGS. 1, 2, and 8 are given the same reference numerals.
The vacuum cleaner 501 of the sixth embodiment includes the same vacuum cleaner body 10, the flexible hose 20, the extension pipe 30, and the holding unit 50 as those of the first embodiment, and the same suction port body 440 as that of the fifth embodiment. .
According to the electric vacuum cleaner 501, the standing state of the extension pipe 30 can be maintained more stably than in the case of the electric vacuum cleaner 401 of the fifth embodiment.
In addition, you may change the holding | maintenance part 50 in Embodiment 6 into the holding | maintenance part in any one of Embodiment 2-4.

(Other embodiments)
1. In the first embodiment (FIG. 4), the first and second holding portions 51 and 52 of the holding portion 50 are both illustrated as having magnets 51b and 52b, but one of them is a magnetic body such as a metal piece. May be.
2. In the second embodiment (FIG. 5), the case where the second holding portion 152 of the holding portion 150 is formed so that the inside of the extension tube 130 is raised is illustrated. However, the second holding portion is so formed that the outside of the extension tube 130 is raised. 152 may be formed.
3. In the third embodiment (FIG. 6), the case where the first holding portion 251 of the holding portion 250 is provided with the locking convex portion 251a ₁ and the second holding portion 252 is provided with the locking concave portion 252a ₁ is exemplified. The holding portion 251 may be provided with a locking concave portion, and the second holding portion 252 may be provided with a locking convex portion.
4). In the fourth embodiment (FIG. 7), the case where the first holding portion 351 of the holding portion 350 is provided with the locking convex portion 351a ₁ and the second holding portion 152 is provided with the locking concave portion 152a ₁ is exemplified. The holding portion 351 may be provided with a locking concave portion, and the second holding portion 152 may be provided with a locking convex portion.
5. Although Embodiment 1-6 illustrated the case where the connection pipe part of a suction inlet body can rock | fluctuate in the front-back direction and the left-right direction, in the vacuum cleaner of this invention, the suction mouth body rock | fluctuated only in the front-back direction is used. May be.
6). Although the cyclone type vacuum cleaner has been described as the vacuum cleaner 1, a paper pack type vacuum cleaner may be used.

(Summary)
An electric vacuum cleaner (first invention) according to the present invention includes a vacuum cleaner body, a flexible hose connected to the vacuum cleaner body, an extension pipe connected to the flexible hose, and the extension pipe. A suction port body to be connected, and a holding portion that holds the intermediate portion in the longitudinal direction of the flexible hose and the intermediate portion in the longitudinal direction of the extension tube in a proximity state so as to maintain the standing state of the extension tube. With
The holding part has a first holding part provided in the intermediate part of the flexible hose, and a second holding part provided in the intermediate part of the extension pipe,
The first holding part and the second holding part are configured to be attracted to each other by magnetic force.

In addition, another vacuum cleaner of the present invention (second invention) includes a cleaner body, a flexible hose connected to the cleaner body, an extension pipe connected to the flexible hose, A suction port connected to the extension pipe,
The suction port body has a suction port main body, and a connecting pipe portion that connects the suction port main body to the extension pipe,
The connecting pipe portion is connected to the suction port main body so as to be able to swing forward at an angle larger than 90 ° with respect to the floor surface so that the extension pipe can maintain an upright state.

The vacuum cleaner as the second invention may be configured as follows.
(1) It further includes a holding portion that holds the intermediate portion in the longitudinal direction of the flexible hose and the intermediate portion in the longitudinal direction of the extension tube in a proximity state,
The holding part has a first holding part provided in the intermediate part of the flexible hose, and a second holding part provided in the intermediate part of the extension pipe,
The first holding unit and the second holding unit may be configured to be attracted to each other by a magnetic force.
According to this configuration, the first holding portion and the second holding portion are attracted to each other by magnetic force, and the intermediate portion in the longitudinal direction of the flexible hose and the intermediate portion in the longitudinal direction of the extension tube are bundled together. Therefore, the standing state of the extension pipe can be maintained more stably.

Moreover, the vacuum cleaner as 1st invention and the vacuum cleaner as 2nd invention may each be comprised as follows, and they may be combined suitably.
(2) One of the first holding unit and the second holding unit may have a magnet, and the other may have a magnet or a magnetic body that can be attracted to the magnet.
According to this configuration, when both the first and second holding portions have magnets, they can be attracted to each other with a strong magnetic force, and one of the first and second holding portions has a magnet and the other has In the case of having a magnetic body, the magnetic body can be made into a thin plate to make it compact and to reduce the cost.

(3) One of the first holding portion and the second holding portion has a locking recess, and the other has a locking projection that is detachably locked to the locking recess. May be.
According to this configuration, the longitudinal intermediate portion of the flexible hose and the longitudinal direction of the extension tube can be obtained by the adsorption of the first holding portion and the second holding portion and the engagement of the locking convex portion and the locking concave portion. Since the state of being bundled with the intermediate portion is more firmly maintained, it is possible to handle when going up and down stairs with a vacuum cleaner when cleaning is interrupted or when storing the vacuum cleaner.

  The disclosed embodiments should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

DESCRIPTION OF SYMBOLS 1,401,501 Vacuum cleaner 10 Vacuum cleaner main body 20 Flexible hose 21a, 31a Longitudinal intermediate part 30, 130, 330 Extension pipe 40, 440 Suction port body 50, 150, 250, 350 Holding part 51, 251 , 351 first holding portion 51b, 52 b magnet 52,152,252,352 second holding portion 152a magnetic 251a _1, 351a ₁ locking projections 252a _1, 352a ₁ engagement recess theta _1, theta ₂ angle

Claims (5)

A vacuum cleaner body, a flexible hose connected to the vacuum cleaner body, an extension pipe connected to the flexible hose, a suction port connected to the extension pipe, and a standing state of the extension pipe A holding portion that holds the intermediate portion in the longitudinal direction of the flexible hose and the intermediate portion in the longitudinal direction of the extension tube in a proximity state so as to maintain
The holding part has a first holding part provided in the intermediate part of the flexible hose, and a second holding part provided in the intermediate part of the extension pipe,
The vacuum cleaner, wherein the first holding part and the second holding part are configured to be attracted to each other by a magnetic force. A vacuum cleaner body, a flexible hose connected to the vacuum cleaner body, an extension pipe connected to the flexible hose, and a suction port connected to the extension pipe,
The suction port body has a suction port main body, and a connecting pipe portion that connects the suction port main body to the extension pipe,
The connecting pipe portion is connected to the suction port main body so as to be swingable forward at an angle larger than 90 ° with respect to the floor surface so that the extension pipe can maintain an upright state. Machine. A holding portion that holds the intermediate portion in the longitudinal direction of the flexible hose and the intermediate portion in the longitudinal direction of the extension tube in a close proximity;
The holding part has a first holding part provided in the intermediate part of the flexible hose, and a second holding part provided in the intermediate part of the extension pipe,
The vacuum cleaner according to claim 2, wherein the first holding unit and the second holding unit are configured to be attracted to each other by a magnetic force.   4. The vacuum cleaner according to claim 1, wherein one of the first holding unit and the second holding unit includes a magnet and the other includes a magnet or a magnetic body that can be attracted to the magnet.   5. The device according to claim 4, wherein one of the first holding portion and the second holding portion has a locking recess, and the other has a locking projection that is detachably locked to the locking recess. Electric vacuum cleaner.

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