JPH05253098A - Vacuum cleaner - Google Patents

Abstract

PURPOSE:To provide a vacuum cleaner with an attachment plug projecting from a cord opening which is kept from touching the user, wall surface, etc. CONSTITUTION:A cylindrical cleaner body 11 having an attachment plug 36 of a power cord 33 incorporated in the body 1 1 projecting from a side 11b thereof and a cord opening 35 through which the cord 33 is pulled in and out is also provided with a pair of guard walls 37, 37 for the plug 36 on the upper and lower sides thereof in a state the body 11 is standing, while projected outward of the body 11, and a projection 57 for preventing the body from turning over along with the guard wall 37 when the body 11 is laid on its side is formed at a place corresponding to the guard wall 37 of the side 11b.

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 electric vacuum cleaner in which an extension tube is attached in a longitudinal direction of a main body.

[0002]

2. Description of the Related Art Conventionally, a so-called upright type electric vacuum cleaner in which an extension tube is attached in a longitudinal direction of a vacuum cleaner body is known, and this is improved to be used as an upright type as well as a handy type. The applicant has already applied for a vacuum cleaner that can also be used.

The electric vacuum cleaner 1 according to the prior application has a detachable extension tube 3 which can be mounted by projecting it downward in the longitudinal direction of a cylindrical cleaner main body 2. On the side surface 2a, an engaging portion 6 for engaging the take-out port 5 of the power cord 4 and the extension tube 3 stored in the cleaner body 2 is formed.

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

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

By the way, the power cord 4 stored in the cleaner body 2 is attached to the cord reel 9 which can be automatically wound up by operating the release button 9a.
As a finger hook for pulling out the power cord 4 from the outlet 5, the insertion plug 4 a is projected from the outlet 5.

[0007]

However, with respect to the insertion plug 4a protruding from the outlet 5, the blade portion 4b of the insertion plug 4a is protruded outward from the side surface 2a of the cleaner body 2 having a curved surface. When moving the cleaner body 2 with the power cord 4 stored, the blade portion 4b may touch the operator's body or hit the wall surface of the room. In this case, the wall surface or plug plug Four
There is a problem in that a may be damaged.

The present invention has been made in view of the above problems, and an object thereof is to prevent an insertion plug protruding from an outlet from touching an operator's body or hitting a wall surface of a room. It is to provide an electric vacuum cleaner that can prevent

[0009]

In order to achieve the above object, an electric vacuum cleaner according to the present invention has a plug of a power cord housed inside the cleaner body on a side surface of a cylindrical cleaner body. In an electric vacuum cleaner which is formed with an outlet for projecting and withdrawing the power cord, a pair of protective walls for covering the insertion plug from both sides in the vertical direction when the cleaner main body is set upright is provided outside the cleaner main body. And a protrusion for blocking the rolling movement of the cleaner main body that is laterally placed together with the protective wall at a position corresponding to the protective wall on the side surface.

[0010]

The electric vacuum cleaner according to the present invention can be used as a so-called upright type or a handy type, and is formed at the outlet when the main body of the vacuum cleaner is moved when the handheld type is used. Since the pair of protective walls can cover the plug plug from both sides in the vertical direction and hide it without exposing the plug plug, it is possible to prevent the operator plug from touching the body or hitting the wall surface of the room. Does not damage the plug.

[0011]

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

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

The main body 11 is formed of a cylindrical body having a substantially flat bottom surface 11a and curved side surfaces 11b, both ends of which are closed. The main body 11 is formed by combining pieces divided into two parts in the left-right direction by a parting line P (see FIGS. 5, 6, and 7) along the vertical axis direction, and the locking boss portion formed in each piece. It can be assembled by fixing B.

Inside the main body 11, a dust collecting chamber 15 is formed above and a electric blower chamber 16 is formed below, and a cord reel chamber 17 is formed below the electric blower chamber 16 (see FIG. 1).

As shown in FIG. 3, a suction port 18 communicating with the outside of the main body 11 is formed in the upper part of the dust collection chamber 15, and a dust bag holder 19 is provided facing the suction port 18. The dust bag holder 19 includes a mouth frame 21 of the dust bag 20.
Is detachably held. In addition, in the dust collection chamber 15,
An opening 22 is formed on the side surface 11b for inserting and removing the dust collecting bag 20.

The dust bag holder 19 is located above and below the suction port 18 and is orthogonal to the opening 22, and the openings are opposed to each other.
4 and has an opening 2 of the lower guide groove 24.
A guide locking portion 25 that guides and locks the mouth frame 21 is provided at the 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, and extends from the lower guide groove 24 to the upper guide groove 2.
3, the guide groove 26 is rotatably supported in the vertical direction, and is urged upward by a urging member (not shown) to position the guide groove 26 above the lower guide groove 24.

The guide groove 26 is inclined toward the opening 22 side, and the guide groove 26 is communicated with the lower guide groove 24 by rotating the guide locking portion 25 downward. In this state, the opening 22 side into which the mouth frame 21 is inserted expands.

Therefore, when the mouth frame 21 is attached to the dust collecting bag holder 19, it can be easily inserted into the guide grooves 23 and 24 from the opening 22 side through the guide groove 26. The frame 21 has a guide locking portion 2 that is biased upward.
5, it is securely fixed and held.

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

The lid 27 has a side surface 11b when the opening 22 is closed.
Is formed of a plate body having the same curved surface as the side surface 11b so as to become a part of the side surface 11b, and a packing (formed by an elastic member such as rubber) at the back surface side abutting portion abutting the peripheral edge of the opening 22 ( (Not shown) is attached so that the opening 22 can be hermetically sealed (see FIG. 2).

A lid locking protrusion (not shown) is formed at the lower end of the lid 27 so as to project downward.
An elongated hole-shaped recess 28 along the longitudinal direction is formed in a substantially central portion of the lid 27. The recess 28 is closed by a small lid 29 attached to the lid 27.

The small lid body 29 is formed by a plate body having the same curved surface as the lid body 27 so as to become a part of the lid body 27 when attached to the lid body 27, and the outer surface 29a has A visual confirmation window 30 for displaying a dust collecting state and a finger hanging concave portion 31 are formed (see FIG. 2).

The small lid 29 is provided with an upper locking projection and a lower locking projection (both not shown) located on the inner surfaces of the upper and lower ends and projecting toward the inside of the lid 27. .. The upper locking protrusion has a first locking portion formed by a vertical wall and located on the base side, and a second locking portion formed by a lower projection and positioned at the tip portion (both not shown). ing.

Then, the lid 27 has the lid 2 by engaging the first engaging portion and the lower engaging projection of the upper engaging projection.
The small lid 29 can be attached to the opening 22 while the small lid 29 is attached to the opening 7. The lid 27 attached to the opening 22 has an 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 dust collecting chamber 15 on the intake side.
The exhaust side communicates with the outside air, and the intake side and the exhaust side are airtightly partitioned by an annular elastic member (not shown).

In the cord reel chamber 17, the power cord 3
A cord reel 34 for winding 3 is rotatably provided, and the power cord 33 can be pulled out of the main body 11 through an insertion hole (outlet) 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 the pulled-out state. In the pulled-out state, the release button 34a protruding from the side surface 11b is pressed. It can be canceled by.

The insertion hole 35 is located below the side surface 11b of the main body 11 and opens 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).

Further, as shown in FIG. 5, in the insertion hole 35, a pair of protection walls 37, 37 for covering the insertion plug 36 from both sides in the vertical direction when the main body 11 is set upright are provided.
Is projected toward the outside.

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

Further, a contact surface 57a located on the extension of one oblique side 37a is provided on the side surface 11b opposite to the parting line P of the protection wall 37, which is a position corresponding to the protection wall 37 on the side surface 11b. The protrusion 57 has is formed.
Due to one of the oblique side 37a and the contact surface 57a, the main body 1
1 is held with one of the hypotenuses 37a and the contact surface 57a as the bottom surface, with the hose guide portion 46 described later facing upward.

Therefore, one oblique side 37a and the contact surface 57 are formed.
In the horizontally placed main body 11 in which a is brought into contact with the floor surface, the protective wall 37 and the protrusion 57 serve as resistance to prevent the main body 11 from rolling in the circumferential direction (see FIG. 6). ).

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

The insertion pipe 38 has a tubular front piece 40.
And a rear piece 41 has a two-piece structure divided into two parts in the front-rear direction (see FIG. 3).

The front piece 40 and the rear piece 41 are
A plurality of locking projections provided on the outer peripheral surface of the rear end portion of the front piece 40 are provided in a plurality of locking hole portions formed on the outer peripheral surface of the front end portion of the rear piece 41 corresponding to the locking projections. By locking, the rear end of the front piece 40 can be integrated with the rear end of the rear piece 41 inserted.

An annular packing 44 is attached to the tip of the front piece 40, and the packing 44 is attached to the mouth frame 21.
The insertion pipe 38 and the dust collecting bag 20 communicate with each other in an airtight manner by abutting against. Further, one end of the inserted connecting hose 39 is fixed to the inner surface of the front piece 40.

At the rear end portion of the rear piece 41, an eave-shaped extending portion 45 which is formed of a curved surface having a large radius (R) and covers the connecting hose 39 passing therethrough is formed. By this extending portion 45, the bending degree 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, by forming the insertion pipe 38 into the two-piece structure, the connection hose 39 can be easily and surely attached to the insertion pipe 38.

That is, since the connecting hose 39 is formed in a bellows shape having flexibility and stretchability, the insertion tube 38
When the depth of the insertion pipe 38 is long due to deformation of the connection hose 39 that occurs when the connection hose 39 is inserted into the insertion hose, the connection hose 39 cannot reach the deepest part of the insertion pipe 38,
Since the connecting hose 39 is attached to the front piece 40 having a short depth, the connecting hose 39 can easily and surely reach the innermost part of the insertion tube 38.

A hose guide portion 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 portion 46 has a connecting hose 39.
A recess 47 for storing and storing the
A protruding portion 48 is formed in the lower part of the above so as to vertically open. In addition, the upper portion of the hose guide portion 46 is provided with
It is formed integrally with.

A pipe body 49 formed at the other end of the connecting hose 39 is detachably attached to the upper portion of the projecting portion 48, and the upper end portion of the extension pipe 12 is fitted and connected to the lower portion. You can

Both of the wall portions 47a (not shown) on both sides of the recess 47, which are separated from each other, have a portion corresponding to the pipe body 49 cut low, and the pipe body 49 of the connecting hose 39 which is stored and arranged.
The part is exposed over substantially the entire outer diameter part. Therefore,
When taking out the connection hose 39 from the recess 47, a finger can be easily hooked on the pipe body 49.

A slit 48 is provided on the outer surface of the protrusion 48 for introducing outside air into the protrusion 48 when the extension tube 12 is removed.
a is formed.

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

The receiving portion 50, as shown in FIG.
1b, the recessed 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 locking projection 54, which will be described later, 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.

Further, the receiving portion 50 is formed with a notch (cord hook portion) 52 which communicates with the concave portion 51 from the front wall 50a forming the outer surface to the bottom wall 50b. In the notch 52, the front wall 50a has a distance substantially the same as the thickness of the power cord 33, and the bottom wall 50b has a distance substantially the same as the width of the power cord 33.

Then, the thick portion is directed to the notch 52 of the front wall 50a and is inserted into the recess 51, and the direction is changed by the notch 52 of the bottom wall 50a inside the recess 51 to change the notch 52 of the front wall 50a. The power cord 33 can be locked without being disengaged from the notch 52 by directing the width portion to.

Belt stoppers 53 for locking a shoulder belt (not shown) are formed on the upper end of the side surface 11b above the receiving portion 50 and on the hose guide portion 46 above the recess 51 (FIG. 1). reference).

Each belt stopper 53 utilizes the locking boss portion B formed on the main body 11 as a screw locking portion for assembling each piece, and is opened at the side surface 11b and the hose guide portion 46, respectively. The main body 11 is positioned in each recess 54 having the opening 54a, and is positioned substantially horizontally when the main body 11 is placed upright in each recess 54.

When the operator hangs the shoulder straps whose both ends are locked on the both belt stoppers 53, 53 on the shoulder, the main body 11 is hung from the shoulder in a standing state.

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

The locking projection 55 has an inverted L shape with its tip facing downward.
The main body 11 is formed in a letter shape, and the suction protrusion 13 is locked to the receiving portion 50 in a state where the bottom surface 11a of the main body 11 is placed on the floor surface and the suction port body 13 is attached. The extension tube 12 can be retained in the body 11.

When the electric vacuum cleaner 10 is operated, the electric blower 32 is turned on so that the handle 14 can be easily switched by moving a finger back and forth while holding the handle 14. A switch 56 that turns off is provided.

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

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

By attaching the extension pipe 12 to the protruding portion 48, the connecting hose 3 stored in the hose guide portion 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 collection chamber 15 via the connection hose 39 fixed to the side surface 11b of the body 11 and the body 1
1 and the extension pipe 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 grip 14 is operated to suck the floor. By moving the mouth body 13, dust on the floor surface is sucked from the suction mouth body 13 to extend the extension tube 12, the connecting hose 39, and the suction mouth 18.
And is collected in the dust collecting bag 20.

At this time, the receiving portion 50 without the extension tube 12
Then, the power cord 33 is hooked and locked. Receiver 5
The power cord 33, which is locked to 0, is hooked in the notch 52 and held without being detached, and is located in the receiving portion 50 above 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 being caught in the extension tube 12 protruding from the bottom surface 11a and becoming an obstacle 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 pipe 12, the power cord 33 is newly provided on the side surface 11b.
It is not necessary to provide a hook-and-hold portion for the side surface 11b and the side surface 11b is not complicated, which is not a design limitation.
The hook holding portion, which is provided separately from the receiving portion 50, has an extension tube 12
It doesn't get in the way of locking.

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

When using as a handy type,
The tube body 49 is removed from the protrusion 48. The tubular body 49 is provided with the protrusion 48.
By removing the flexible hose 39 from the hose guide portion 46, the flexible connecting hose 39 becomes a free end of the tubular body 49, which enables free operation with respect to the main body 11, and holds the tubular body 49 by hand. You can clean high places by sucking dust from here.

Further, by removing the extension tube 12, the main body 11 can be placed on the floor or the handle 14 can be installed.
Can be carried by the other hand, and if necessary, the suction tube body 13 or the extension tube 12 removed from the protrusion 48 can be connected to the tube body 49 for cleaning.

At the end of cleaning, the engaging projection 54 is received by the receiving portion 5.
The extension tube 12 to which the suction port body 13 is connected is attached to the main body 11, and the tube body 49 is attached to the protruding portion 48 to store the connection hose 39 in the hose guide portion 46 (FIG. 1). reference).

Then, the vacuum cleaner 10 can be compactly housed by placing the bottom surface 11a on the floor and placing the main body 11 in a standing state. To carry the main body 11, it is sufficient to carry the grip 14 in this state.

When carrying the main body 11, the blade portion of the insertion plug 36 protruding outward from the side surface 11b of the main body 11 having a curved surface touches the operator's body or collides with the wall surface of the room. It is possible that the insertion hole 3
By the pair of protective walls 37, 37 formed on the main body 5,
Since the insertion plug 36 can be covered from both sides in the up-down direction and hidden without being exposed in the standing state of No. 1, it is prevented from touching the operator's body or hitting the wall surface of the room. The plug plug 36 is not damaged.

In addition, the protection wall 37, together with the protrusion 57,
It acts as a resistance to prevent the body 11 in the horizontal position on the floor from rolling over in the circumferential direction, and can prevent the body 11 from rolling in the circumferential direction. Can be held.

[0070]

As described above, according to the electric vacuum cleaner of the present invention, it is possible to prevent the insertion plug protruding from the outlet from touching the operator's body or hitting the wall surface of the room. In addition, it is possible to prevent rolling of the main body that is placed horizontally on the floor in the circumferential direction.

[Brief description of drawings]

FIG. 1 is a front view of an electric vacuum cleaner according to the present invention.

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

FIG. 3 is a partially enlarged view of a cleaner body showing a vicinity of a suction port with a part thereof broken.

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

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

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

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

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

[Explanation of Codes] 10 Electric Vacuum Cleaner 11 Vacuum Cleaner Main Body 11b Side 33 Power Cord 35 Insertion Hole (Ejection Port) 36 Plug Plug 37 Protective Wall 57 Protrusion

Claims (1)

[Claims] 1. An electric vacuum cleaner, comprising: a cylindrical cleaner body having a side surface on which a plug for a power cord stored inside the cleaner body is projected and an outlet for inserting and removing the power cord. A pair of protective walls that cover the insertion plug from both sides in the up-down direction when the cleaner body is placed upright and project toward the outside of the cleaner body, and the cleaner is placed horizontally with the protective wall. An electric vacuum cleaner, wherein a protrusion for preventing the main body from rolling is formed on the side surface at a position corresponding to the protective wall.