JP3192734B2 - Electric vacuum cleaner - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a so-called upright type vacuum cleaner having an extension tube mounted in a longitudinal direction of a main body.

[0002]

2. Description of the Related Art A so-called upright type vacuum cleaner in which an extension tube is mounted in a longitudinal direction of a vacuum cleaner body has been known. The applicant has already filed a vacuum cleaner that can also be used.

[0003] The vacuum cleaner 1 according to the already filed application shown in FIG.
It has a detachable extension tube 3 that can be attached by being protruded downward in the longitudinal direction of the cylindrical cleaner main body 2, and is housed in the cleaner main body 2 on a side surface 2 a of the cleaner main body 2. A locking portion 6 for locking the outlet 5 of the power cord 4 and the extension tube 3 is formed.

In the vacuum cleaner 1, an extension tube 3 is mounted on a bottom surface 2b of the cleaner body 2 so as to project from the bottom surface 2b of the cleaner body 2 so that the suction port 3a attached to the extension tube 3 is attached to the side surface 2 of the cleaner body 2.
The cleaner can be used as an upright type in which the cleaner main body 2 and the extension pipe 3 are integrated with each other by communicating with the dust collecting chamber 8 in the cleaner main body 2 via the connecting hose 7 fixed to the a.

On the other hand, by connecting the extension pipe 3 to one end 7a of the connecting hose 7 detached from the cleaner body 2, the extension pipe 3 is a handy type that can be freely operated with respect to the cleaner body 2. Can be used.

By the way, when used as an upright type, during cleaning, the outlet 5 at the lower end of the side surface 2a is used.
Since the power cord 4 pulled out of the extension pipe 3 sticks to the extension pipe 3 and is in the way, the power cord 4 is hooked on the upper portion of the side surface 2a as far as possible from the bottom surface 2b to separate the power cord 4 from the extension pipe 3. It is conceivable to provide a part.

[0007]

However, the side 2
When the hook portion is newly provided, the side surface 2a on which the locking portion 6 is already provided becomes complicated and restricts the design, and the hook portion provided separately from the locking portion 6 serves as the extension tube 3. There is a problem that it becomes an obstacle when locking.

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and an object of the present invention is to provide a hook portion for positioning a drawn power cord away from an extension tube to prevent the side surface from being complicated. It does not become a design constraint,
It is still another object of the present invention to provide a vacuum cleaner provided without hindering the locking of the extension tube.

[0009]

In order to achieve the above object, a vacuum cleaner according to the present invention comprises a cylindrical cleaner body containing a dust collecting chamber, and the cleaner body protrudes downward in the longitudinal direction. An extension pipe that is detachably mounted and communicates with the dust collecting chamber in the mounted state; an outlet for a power cord formed in the cleaner body and stored in the cleaner body; and an outlet formed in the body. And a locking portion for locking the extension tube, wherein the locking portion is located above the outlet, and the locking portion includes:
When the extension pipe is attached to the cleaner body so as to protrude downward in the longitudinal direction thereof, a cord hook portion for hooking and holding the power cord is formed.

[0010]

The vacuum cleaner according to the present invention can be used as a so-called upright type or a handy type. When used as an upright type, a power supply is applied to the cord hooking portion of the locking portion with the extension tube removed. By locking the cord, it is possible to prevent the power cord pulled out from the outlet during cleaning from sticking to the extension tube and obstructing it.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of a vacuum cleaner according to the present invention will be described below with reference to the drawings.

A vacuum cleaner 10 shown in FIGS. 1 and 2 includes a cleaner main body (main body) 11, an extension pipe 12 detachably attached to the main body 11, and a suction port 13 attached to the extension pipe 12. Have.

The main body 11 is formed of a tubular body having a substantially flat bottom surface 11a and a curved side surface 11b, both ends of which are closed, and an annular handle 14 protruding from the upper end. The main body 11 is formed by combining each piece divided in the left-right direction by a parting line P (see FIGS. 5, 6, and 7) along the longitudinal axis, and a locking boss formed on each piece. B is assembled by screwing.

Inside the main body 11, a dust collecting chamber 15 is formed in an upper part, and an electric blower room 16 is formed in a lower part. A code reel chamber 17 is formed below the electric blower room 16. 1).

As shown in FIG. 3, a suction port 18 communicating with the outside of the main body 11 is formed above the dust collection chamber 15, and a dust bag holder 19 is provided facing the suction port 18. The dust bag 20 is provided with the opening frame 21 of the dust bag 20.
Are detachably held. Also, in the dust collection chamber 15,
An opening 22 is formed on the side surface 11b to take the dust collection bag 20 in and out.

The dust bag holder 19 is located above and below the suction port 18 and orthogonal to the opening 22 and has openings facing the upper guide groove 23 and the lower guide groove 2.
4, the opening 2 of the lower guide groove 24.
A guide locking portion 25 that guides and locks the mouth frame 21 is provided at an end on the second side.

As shown in FIG. 4, the guide locking portion 25 is formed in an L shape having a guide groove 26 communicating with the lower guide groove 24.
3, and is always urged upward by an urging member (not shown) to position the guide groove 26 above the lower guide groove 24.

The guide groove 26 has a slope which is lowered toward the opening 22 side. The guide groove 26 is communicated with the lower guide groove 24 by rotating the guide locking portion 25 downward. In this state, the side of the opening 22 into which the mouth frame 21 is inserted is enlarged.

Therefore, when the mouth frame 21 is mounted on the dust bag holder 19, the mouth frame 21 can be easily inserted into the two guide grooves 23 and 24 from the opening 22 side via the guide groove 26, and The frame 21 is provided with the guide locking portion 2 urged upward.
5 securely holds.

The opening 22 can be opened and closed by a removable lid 27.

When the opening 22 is closed, the lid 27 is
Is formed of a plate body having the same curved surface as the side surface 11b so as to be a part of the side surface 11b, and a packing ( (Not shown), and the opening 22 can be hermetically sealed (see FIG. 2).

At the lower end of the lid 27, a lid locking projection (not shown) projecting downward is formed.
At a substantially central portion of the lid 27, a long hole-shaped recess 28 is formed along the longitudinal direction. The recess 28 is closed by a small lid 29 mounted on the lid 27.

The small lid 29 is formed of a plate having the same curved surface as the lid 27 so as to become a part of the lid 27 when the small lid 29 is attached to the lid 27. A viewing window 30 of an indicator for displaying a dust collection state and a finger-holding recess 31 are formed (see FIG. 2).

The small lid 29 has an upper locking projection and a lower locking projection (both not shown) which are located on the inner surfaces of the upper and lower ends and protrude toward the inside of the lid 27. . The upper locking projection has a first locking portion formed by a vertical wall and located on the base side, and a second locking portion (both not shown) formed by the lower projection and located on the distal end portion. ing.

The lid 27 is locked by locking the first locking portion of the upper locking projection and the lower locking projection.
7 can be attached to the opening 22 with the small lid 29 attached, and the lid 27 attached to the opening 22 is locked by the upper locking recess formed at the upper end of the opening 22. By locking the second locking portion of the projection and locking the lid locking projection in the lower locking recess formed at the lower end of the opening 22,
It can be attached to the main body 11.

An electric blower 32 is provided in the electric blower chamber 16.
Are held by a plurality of support walls (not shown) via elastic members. The electric blower 32 has a suction side 15
The exhaust side communicates with the outside air, and the intake side and the exhaust side are air-tightly partitioned by an annular elastic member (not shown).

The power cord 3 is provided in the code reel chamber 17.
The power cord 33 can be pulled out of the main body 11 through an insertion hole (a takeout port) 35 formed in the side surface 11b.

The cord reel 34 is constantly urged in the winding direction and can hold the power cord 33 in a pulled-out state. In the pulled-out state, the release button 34a protruding from the side surface 11b is pressed. Can be canceled.

The insertion hole 35 is located below the side surface 11b of the main body 11, and is open along the tangential direction of the curved side surface 11b, and functions as an outlet for inserting and removing the power cord 33. The insertion plug 36 of the power cord 33 projects outside the insertion hole 35 (see FIG. 1).

As shown in FIG. 5, a pair of protective walls 37, 37 for covering the insertion plug 36 from both sides in the up-down direction when the main body 11 is placed upright is provided in the insertion hole 35.
It protrudes outward.

As shown in FIG. 6, the protection wall 37 is formed in a triangular shape having one oblique side 37a positioned on a tangent extension of the side surface 11b on the opposite side of the hose guide portion 46, which will be described later, and having a substantially right-angled end. The insertion plug 36 is hidden by the protection wall 37 without being exposed to the outside of the side surface 11b.

A contact surface 57a located on the extension of one oblique side 37a is formed on the side surface 11b of the protection wall 37 opposite to the parting line P, which is a position corresponding to the protection wall 37 of the side surface 11b. The protrusions 57 are formed.
The one oblique side 37a and the contact surface 57a make the main body 1
1 is held in a state in which a hose guide portion 46 described later faces upward with one oblique side 37a and the contact surface 57a as bottom surfaces.

For this reason, one oblique side 37a and the contact surface 57
In the case of the main body 11 in the horizontal state in which a is in contact with the floor surface, the protection wall 37 and the projection 57 act as resistance to prevent the main body 11 from rolling in the circumferential direction (see FIG. 6). ).

An insertion tube 38 is inserted into and fixed to the suction port 18 from the outside of the main body 11 and has a tip protruding toward the dust collection chamber 15.
Is attached to the outside of the main body 11 of the insertion tube 38.
A bellows-like connecting hose 39 having flexibility and elasticity is attached.

The insertion tube 38 has a cylindrical front piece 40.
It has a two-piece structure divided into two in the front-rear direction by a rear piece 41 (see FIG. 3).

The front piece 40 and the rear piece 41
A plurality of locking projections projecting from the outer peripheral surface of the rear end of the front piece 40 are formed in a plurality of locking holes formed on the outer peripheral surface of the front end of the rear piece 41 so as to correspond to the locking projections. By locking, the rear piece 41 can be integrated with the rear end inserted into the front end of the rear piece 41.

At the front end of the front piece 40, an annular packing 44 is mounted.
, The insertion tube 38 and the dust bag 20 are air-tightly communicated. Further, one end of the inserted connection hose 39 is fixed to the inner surface of the front piece 40.

At the rear end of the rear piece 41 is formed an eave-shaped extending portion 45 which is formed by a large curved surface of a round (R) and covers the connecting hose 39 penetrating therethrough. By the extending portion 45, the degree of bending of the bending portion 39a of the connecting hose 39 bent downward from the suction port 18 can be maintained in a gentle state.

As described above, since the insertion tube 38 has a two-piece structure, the connection hose 39 can be easily and reliably attached to the insertion tube 38.

That is, since the connecting hose 39 is formed in a bellows shape having flexibility and elasticity, the insertion tube 38
When the depth of the insertion tube 38 is long due to deformation of the connection hose 39 generated at the time of insertion into the insertion tube 38, the connection hose 39 cannot reach the deepest portion of the insertion tube 38,
Since the connecting piece 39 is attached to the front piece 40 having a short depth, the connecting hose 39 can easily and reliably reach the deepest part of the insertion tube 38.

A hose guide 46 is integrally provided on the side surface 11b of the main body 11 along the longitudinal direction of the main body 11 (see FIG. 1).

The hose guide 46 has a connecting hose 39.
Is formed in which the recess 47 is stored.
Is formed at the lower part of the upper part of the projection. In addition, the upper part of the hose guide part 46 is
And are formed integrally.

A tube 49 formed at the other end of the connecting hose 39 is detachably mounted on the upper part of the projecting part 48, and the upper end of the extension tube 12 is fitted and connected to the lower part. Can be.

The opposite wall portions 47a (not shown) on both sides of the recess 47 have portions corresponding to the tube 49 cut down low, and the tube 49 of the connecting hose 39 stored and arranged.
The portion is exposed over substantially the entire outer diameter portion. Therefore,
When taking out the connecting hose 39 from the recess 47, a finger can be easily hooked on the tube 49.

On the outer surface of the projection 48, a slit 48 for introducing outside air into the projection 48 when the extension pipe 12 is removed.
a is formed.

A receiving portion (locking portion) 50 for locking the extension tube 12 is provided on a side of the side surface 11b opposite to the hose guide portion 46.

The receiving portion 50 is, as shown in FIG.
1b, a concave portion 51 having an upper opening 51a is formed along the vertical direction of the main body 11. Recess 51
Has the same size and shape as a later-described locking projection 54 formed on the extension tube 12, and can be locked in a fitted state by inserting the locking projection 54 from the upper opening 51a. it can.

The receiving portion 50 has a notch (cord hooking portion) 52 communicating with the concave portion 51 from the front wall 50a forming the outer surface to the bottom wall 50b. In the cut 52, the front wall 50a has substantially the same distance as the thickness of the power cord 33, and the bottom wall 50b has substantially the same distance as the width of the power cord 33.

The notch 52 in the front wall 50a is inserted into the recess 51 with its thickness directed toward the notch 52 in the front wall 50a. The power cord 33 can be locked without being detached from the cut 52 by directing the width portion to.

A belt stopper 53 for locking a shoulder belt (not shown) is formed at the upper end of the side surface 11b above the receiving part 50 and the hose guide part 46 above the concave part 51 (FIG. 1). reference).

Each of the belt stoppers 53 uses a locking boss B formed on the main body 11 as a screw locking part for assembling each piece, and is opened on the side surface 11b and the hose guide part 46, respectively. The main body 11 is positioned in each of the recesses 54 having the opening portions 54a which are formed, and is substantially horizontal when the main body 11 is placed upright in each of the recesses 54.

When the operator hangs the shoulder straps, both ends of which are locked to these belt stoppers 53, on the shoulders, the main body 11 is hung from the shoulders in the upright state.

A locking projection 55 is fixed to an intermediate portion in the longitudinal direction of the extension tube 12 (see FIG. 1).

The locking projection 55 has an inverted L with its tip directed downward.
The main body 11 is fixed on the floor surface with the bottom surface 11a as a stationary surface, and the locking projection 55 is locked on the receiving portion 50, so that the suction port body 13 is mounted. The extension tube 12 can be held by the main body 11.

When operating the vacuum cleaner 10, the electric blower 32 is turned on at a position where the electric blower 32 can be easily switched by moving the finger back and forth while holding the handle 14 in the hand. A switch 56 for turning off is provided.

Next, the operation of the vacuum cleaner having the above configuration will be described.

When the vacuum cleaner 10 is used as a so-called upright type, the extension tube 12 is detached from the receiving portion 50, and the extension tube 12 is attached from the lower end side to the projection 48 with the tube 49 attached. The extension pipe 12 protrudes below the bottom surface 11a (see FIG. 2).

By attaching the extension tube 12 to the projecting portion 48, the connecting hose 3 stored in the hose guide 46 is
9 and the extension pipe 12 communicate with each other, and the suction port body 13 attached to the extension pipe 12 communicates with the dust collecting chamber 15 via the connection hose 39 fixed to the side surface 11b of the main body 11, and the main body 1
1 and the extension tube 12 can be integrated into a rod shape.

Then, the power cord 33 is pulled out from the insertion hole 35, connected to a power outlet such as an outlet to turn on the switch 56, and the main body 11 held by the handle 14 is operated to operate the suction on the floor. By moving the mouth body 13, dust on the floor is sucked from the suction mouth body 13 and the extension pipe 12, the connecting hose 39, and the suction mouth 18 are provided.
And is collected in the dust bag 20.

At this time, the receiving portion 50 from which the extension pipe 12 has been removed
Then, the power cord 33 is hooked and locked. Receiving part 5
The power cord 33 locked to 0 is hooked in the cut 52 and held without being detached, and is located in the receiving portion 50 at the upper part of the side surface 11b away from the bottom surface 11a (FIG. 2).
reference).

Therefore, when used as an upright type, it is possible to prevent the power cord 33 pulled out from the insertion hole 35 from sticking to the extension tube 12 protruding from the bottom surface 11a and obstructing it during cleaning. .

Further, since the notch 52 for hooking and holding the power cord 33 is formed in the existing receiving portion 50 for holding the extension tube 12, a new power cord 33 is provided on the side surface 11b.
It is not necessary to provide a hook holding portion, so that the side surface 11b is not complicated and does not restrict the design,
The hook holding part separately provided from the receiving part 50 is the extension pipe 12.
There is no hindrance when locking the.

Subsequently, when cleaning a high place such as a shelf, for example, the vacuum cleaner 10 is used as a so-called handy type.

When using as a handy type,
Remove the tube 49 from the projection 48. The tube 49 is connected to the projection 48
By removing from the hose, the flexible connecting hose 39 is taken out from the hose guide portion 46, and the tube 49 becomes a free end so that the body 11 can be freely operated. You can clean high places by sucking dust from here.

By removing the extension tube 12, the main body 11 can be placed on the floor or the handle 14
Can be moved with the other hand, and, if necessary, the tube 49 can be connected to the suction port 13 or the extension pipe 12 removed from the projection 48 to perform cleaning.

At the end of cleaning, the locking projection 54 is
0, the extension pipe 12 connected to the suction port 13 is attached to the main body 11, and the pipe 49 is attached to the protruding portion 48 to store the connecting hose 39 in the hose guide portion 46 (FIG. 1). reference).

The vacuum cleaner 10 can be stored compactly by keeping the bottom surface 11a on the floor surface and the main body 11 standing upright. In order to carry the main body 11, it is sufficient to carry the handle 14 in this state.

When carrying the main body 11, the blade portion of the insertion plug 36 protruding outward from the curved side surface 11b of the main body 11 touches the operator's body or hits a wall surface of the room. It is conceivable that the insertion hole 3
The main body 1 is formed by a pair of protective walls 37, 37 formed on the main body 1.
In the upright position of 1, the plug 36 can be covered from both sides in the vertical direction and can be hidden without exposing the plug 36, thereby preventing the operator from touching the body or hitting the wall of the room. It does not damage the plug or the plug 36.

In addition, the protection wall 37, together with the projection 57,
This serves as a resistance for preventing the main body 11 lying on the floor from rolling over in the circumferential direction, so that the rolling of the main body 11 in the circumferential direction can be prevented. Can be held.

[0070]

As described above, according to the electric vacuum cleaner of the present invention, the hook for positioning the drawn power cord away from the extension tube is designed to prevent complication of the side surface. There is no restriction, and it can be provided without obstruction when locking the extension tube.

[Brief description of the drawings]

FIG. 1 is a partially cutaway explanatory view showing a vacuum cleaner according to the present invention.

FIG. 2 is a front view of the vacuum cleaner showing a use state as an upright type.

FIG. 3 is a partially enlarged view of the main body of the vacuum cleaner showing the vicinity of the suction port, which is partially broken.

FIG. 4 is a perspective view of a guide locking portion.

FIG. 5 is a partial explanatory view of the cleaner body showing a protection wall.

FIG. 6 is a bottom view of the cleaner body.

FIG. 7 is a partially enlarged view of a side surface of the cleaner body showing a receiving portion.

FIG. 8 is an explanatory view showing a conventional vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Vacuum cleaner 11 Vacuum cleaner main body 12 Extension tube 15 Dust collection room 33 Power supply cord 35 Insertion hole (extraction port) 50 Receiving part (locking part) 52 Notch (cord hooking part)

Continuation of the front page (56) References JP-A-63-192952 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) A47L 5/28 A47L 5/24 A47L 9/24 A47L 9 / 26

Claims (1)

(57) [Claims] 1. A cylindrical vacuum cleaner body containing a dust collecting chamber,
An extension tube that protrudes downward in the longitudinal direction of the cleaner main body and is detachably mounted and communicates with the dust collection chamber in the mounted state, and is formed in the cleaner main body and stored in the cleaner main body. A vacuum cleaner having an outlet for a power cord and a locking portion formed on the main body for locking the extension tube, wherein the locking portion is located above the outlet, and the locking portion is provided. And a cord hook for hooking and holding the power cord when the extension pipe is attached to the main body of the cleaner so as to protrude downward in the longitudinal direction thereof.