JP4297595B2 - Vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a vacuum cleaner provided with a cleaning auxiliary means such as a rotary brush that is driven to rotate by an electric motor to a floor suction tool connected to an air inlet of a vacuum cleaner body via an intake hose and an extension pipe.
[0002]
[Prior art]
Vacuum cleaners widely used in general households are equipped with an electric fan for intake and a dust collecting chamber for collecting dust, and are provided with intake and exhaust ports and wheels for moving the floor. The extension pipe includes a main body, an extension pipe connected to the intake port via a flexible suction hose, and a suction tool that is detachably attached to a distal end of the extension pipe. While holding the operation handle provided at the base of the wheel and moving the cleaner body on the floor by rolling the wheel, the suction tool attached to the tip is pressed against the desired cleaning surface, and in this state the electric fan Is used while being driven to rotate.
[0003]
At this time, due to the rotation of the electric fan, a flow of intake air is introduced from the suction tool into the cleaner body through the extension pipe, the suction hose and the suction port, and dust around the suction tool is generated together with the suction air. It is sucked and collected in a dust collection chamber placed in front of the electric fan.
[0004]
In the vacuum cleaner configured as described above, the suction tool attached to the tip of the extension pipe has an effect of efficiently collecting dust by suction, and the shape of the suction port and the brush that borders the suction port. Different shapes such as shapes are prepared, and good dust collection performance can be obtained by appropriately replacing them according to the target cleaning surface.
[0005]
Of these types of suction tools, floor suction tools that are used for the floor surface have a wide opening centered on the communication port with the extension pipe for the purpose of efficiently cleaning the floor surface over a wide range. However, since the intake port is large in size, there is a problem that the dust collecting force is insufficient.
[0006]
In addition, Japanese Utility Model Publication No. 6-8852 (A47L 9/28, 5/28), etc. has a configuration in which a storage battery is provided inside the vacuum cleaner body, and an electric fan for intake air is driven by power supplied from the storage battery. Rechargeable vacuum cleaners have been proposed to improve operability by eliminating the need for a power cord for connection to an external power supply. In such vacuum cleaners, the intake performance of the electric fan is improved. Is difficult, and the lack of dust collecting power when using the floor suction tool becomes more prominent.
[0007]
In order to solve such a problem, floor suction tools that incorporate a cleaning assisting means for assisting dust collection and an electric motor for driving the same have been widely used. The cleaning assisting means is configured as a rotating brush which is formed by, for example, implanting a brush on a circumferential surface of a cylindrical body constructed so as to cross the suction port, and is rotated around an axis by the electric motor, The area around the cleaning place where the suction port is pressed is struck and dust is struck out to assist the suction.
[0008]
[Problems to be solved by the invention]
Now, when using the floor suction tool provided with the cleaning auxiliary means as described above, it is necessary to supply power to the electric motor which is a drive source of the cleaning auxiliary means, and this power supply is along the extension pipe and the intake hose. It is set as the structure made through the conductive wire extended and connected to the power supply in a cleaner body.
[0009]
However, in this configuration, a connection portion between the vacuum cleaner main body and the intake hose and a connection mechanism for the conductive wires at the connection portion between the intake hose and the extension pipe are necessary. There is a problem that the configuration becomes complicated. Further, the extension pipe is generally configured by connecting a plurality of pipes in the length direction, and can be used by changing the length by connecting or separating according to the cleaning place. The connection mechanism is also required at the connecting portion of the tube, which further complicates the configuration.
[0010]
In addition, the connection mechanism repeatedly connects and disconnects each time the intake hose and the extension pipe are attached and detached, and as a result, it is inevitable that there will be poor contact during long-term use. This may cause a malfunction of the cleaning assisting means provided in the case, and the desired cleaning performance may not be obtained.
[0011]
The present invention has been made in view of such circumstances, and the storage battery is disposed in a well-balanced manner inside the floor suction tool, and the cleaning auxiliary means is powered by the power supplied from the storage battery, not by the power supplied from the cleaner body. , The conductive wire along the intake hose and the extension pipe, and the connection mechanism of this conductive wire are not required, and it is possible to perform a reliable auxiliary operation for a long time, and for the floor by the arrangement of the storage battery An object of the present invention is to provide a vacuum cleaner that is easy to use by preventing deterioration of the handling of the suction tool.
[0012]
[Means for Solving the Problems]
A vacuum cleaner according to a first aspect of the present invention is used by being detachably attached to a distal end portion of an extension pipe connected to an intake port of a vacuum cleaner body via a flexible intake hose. In the vacuum cleaner provided with the electric motor and the cleaning auxiliary means driven by the electric motor inside the floor suction tool provided with the suction opening that opens wide with the communication part as the center, the inside of the floor suction tool In addition, a storage battery for supplying power to the electric motor is disposed at a position below the communicating portion with the extension pipe, and the electric motor is coaxially connected to the cleaning assisting means .
[0013]
In the present invention, a cleaning auxiliary means such as a rotating brush, and a storage battery disposed inside a floor suction tool provided with an electric motor for driving the same, and the electric motor is driven by the power supplied from the storage battery to clean the auxiliary means. To work. In addition, the storage battery is disposed below the communicating portion with the extension pipe located in the center in the width direction of the floor suction tool, and the electric motor is connected coaxially with the cleaning auxiliary means, and the floor suction maintaining good weight balance in the front-rear direction and the width direction of the tool, it prevents the freely tilted to various directions at the tip of the extension tube in order to follow the change in the cleaning position handling of the attached floor suction device is deteriorated In addition, the center of gravity of the floor suction tool is shifted downward to enable stable operation.
[0014]
A vacuum cleaner according to the second invention is characterized in that the storage battery according to the first invention comprises a plurality of cylindrical batteries arranged in a row.
[0015]
In the present invention, a plurality of inexpensive and cylindrical batteries that are versatile are used, and these are arranged in a row to realize the above-described arrangement in a compact manner.
[0016]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, the present invention will be described in detail with reference to the drawings illustrating embodiments thereof. FIG. 1 is a side view showing an external appearance of a vacuum cleaner according to the present invention when not in use, in which 1 is a vacuum cleaner body and 2 is a charging stand.
[0017]
The vacuum cleaner body 1 is provided with a pair of left and right rear wheels 11 and 11 (only one side is shown) and a small front wheel 12 configured as a caster wheel on the outside. It has an electric fan and a dust collection chamber for dust collection (both not shown), and has an intake port 13 on the front (upper surface in the drawing) and an exhaust port (not shown) on the rear. ing.
[0018]
In the vacuum cleaner according to the present invention, the extension pipe 4 is connected to the suction port 13 of the cleaner body 1 as described above via the flexible suction hose 3, and the floor suction tool 5 is connected to the tip of the extension pipe 4. , The floor suction tool 5 is pressed against the floor surface, and the electric fan inside the cleaner body 1 is driven to be used. As a result, a flow of intake air flowing into the cleaner body 1 from the floor suction tool 5 through the extension pipe 4 and the suction hose 3 is generated, and dust around the floor suction tool 5 is sucked together with the suction air. A known cleaning operation of collecting in a dust collection chamber placed in front of the electric fan is performed.
[0019]
An operation handle 40 is provided at the base of the extension pipe 4 so as to diverge in the vicinity of the connecting portion with the intake hose 3 and bend in a bowl shape, and the pressing operation of the floor suction tool 5 during the cleaning operation, and The movement operation of the cleaner body 1 is performed by a user who holds the operation handle 40. Further, the operation handle 40 is provided with an operation switch (not shown) that can be operated by a user. The operation handle 40 drives an electric fan inside the cleaner body 1 and a rotating brush described later inside the floor suction tool 5. 50 is driven by operating the operation switch.
[0020]
Further, an auxiliary handle 30 that protrudes upward from the cleaner main body 1 at the time of this connection is fixed to the base of the intake hose 3 in the vicinity of the connection portion to the intake port 13 of the cleaner main body 1. The auxiliary handle 30 is gripped when the intake hose 3 is attached / detached to / from the intake port 13 and is used to facilitate the attachment / detachment operation, and is placed on the charging stand 2 as described later when not in use. It is used when the vacuum cleaner main body 1 is lifted with the rear surface serving as a mounting surface facing down.
[0021]
The charging base 2 is used as a mounting base for mounting the cleaner body 1 that has been used as described above together with the floor suction tool 5 connected via the intake hose 3 and the extension pipe 4. The storage batteries 6, 6... (See FIG. 2) inside the floor suction tool 5 are charged during the installation.
[0022]
As shown in FIG. 1, the cleaner main body 1 is placed in a state in which the rear surface serving as a placement surface faces downward and is erected in the approximate center of the charging stand 2. This placement can be easily performed by holding the auxiliary handle 30. The floor suction tool 5 connected to the vacuum cleaner main body 1 through the intake hose 3 and the extension pipe 4 is a mounting portion set by cutting out the upper edge of one side of the charging base 2 in a tapered shape. It is mounted with the suction surface facing downward. This placement is performed using the extension pipe 4 with the floor suction tool 5 attached to the tip.
[0023]
In the middle of the extension pipe 4, an engaging claw 41 that protrudes outward and is bent substantially at a right angle toward the attachment side of the floor suction tool 5 is fixed. On the other hand, the bottom of the cleaner body 1 placed in an upright posture as described above is provided with a recess having an opening in the front surface that faces upward and into which the engaging claw 41 can be inserted.
[0024]
With the above configuration, the extension pipe 4 is supported along the bottom surface of the cleaner body 1 standing upright on the charging stand 2 as shown in the figure by inserting and engaging the tip of the engaging claw 41 into the recess. The floor suction tool 5 connected to the lower end of the extension pipe 4 is supported from above by the extension pipe 4 and comes into contact with the lower surface of the mounting portion set on one side of the charging stand 2. It is placed in a state where
[0025]
A charging coil 20 is disposed inside the charging stand 2 so as to face the inside of the mounting portion of the floor suction tool 5, and the charging coil 20 is charged in the other side of the charging stand 2. Connected to the vessel 21. The storage batteries 6, 6, etc. inside the floor suction tool 5 placed as described above are charged in a non-contact manner by passing a current from the charger 21 to the charging coil 20.
[0026]
2 is a top view of the floor suction tool 5 used in the cleaner according to the present invention, FIG. 3 is a bottom view of the same, and FIG. 4 is a cross-sectional view taken along line IV-IV in FIG. As shown in these drawings, the floor suction tool 5 has a communication portion with the connection pipe 50 at the center on the lower surface of the suction housing 51 connected to one side of the connection pipe 50 for connection to the extension pipe 4. As well as a rectangular suction opening 52 having a wide opening.
[0027]
As shown in FIG. 4, the suction housing 51 and the connecting pipe 50 are connected by fitting a spherical male part formed at the tip of the connecting pipe 50 to a spherical female part provided continuously to the suction housing 51. Has been made. With this connection, the suction housing 51 can be tilted in the vertical direction at the tip of the connecting pipe 50. On the other hand, the connecting pipe 50 and the extension pipe 4 are connected so as to be rotatable about an axis, and the suction housing 51 at the tip of the connecting pipe 50 can be tilted in the left-right direction by this turning. . Accordingly, the suction port 52 can be favorably pressed onto the floor surface during the above-described cleaning operation performed by holding the operation handle 40.
[0028]
A rotating brush (cleaning assisting means) 53 is installed inside the suction housing 51 so as to cross the suction port 52. One side of the rotary brush 53 is coaxially connected to an output end of an electric motor 54 fixed inside the suction housing 51 so that the rotary brush 53 is rotationally driven by the electric motor 54. It has been.
[0029]
As shown in FIG. 4, the rotating brush 53 has brush hairs 53a, 53a implanted at positions facing the radial direction of the circumferential surface of the cylindrical body having a small diameter, and a spatula at a position intersecting with these. When the plates 53b and 53b are implanted and rotated by the electric motor 54, the bristles 53a and 53a and the spatula plates 53b and 53b alternately strike the floor against which the suction port 52 is pressed. Then, the dust blown out by the brush bristles 53a and 53a is scooped up by the following spatula plates 53b and 53b, and a cleaning assisting operation for assisting the suction is performed.
[0030]
A storage battery 6 for supplying power to the electric motor 54 is disposed inside the suction housing 51. The storage battery 6 is configured by arranging a plurality of cylindrical batteries in a row as shown by broken lines in FIG. 2, and is connected to the connecting portion of the connecting pipe 50, that is, after the communicating portion with the extension pipe 4. Located on the side. A vacuum cleaner comprising a storage battery for supplying power to the electric motor. As shown in FIG. 4, the storage battery 6 is arranged in a battery chamber 60 formed by extending the rear side of the suction housing 51 rearward at a position below the connecting portion of the connecting pipe 50. Has been made.
[0031]
A rolling roller 61 is attached to the rear end portion of the battery chamber 60 so as to be rotatable about an axis extending in the width direction. The rolling roller 61 is in rolling contact with the floor surface to which the floor suction tool 5 is pressed during the cleaning operation described above, supports the battery chamber 60 in which the storage battery 6 is stored on the floor surface, and the floor on the floor surface. The suction tool 5 is moved smoothly.
[0032]
The storage battery 6 arranged as described above is connected to the electric motor 54 by a power supply line (not shown), and is connected to the electric motor 54 in response to an ON operation of the operation switch performed with the operation handle 30 held. Power feeding is performed.
[0033]
As described above, the floor suction tool 5 incorporates the storage brush 6 for supplying power to the electric motor 54 in addition to the rotating brush 53 as the cleaning assisting means and the electric motor 54 for driving the rotating brush 53. As described above, it is not necessary to supply power from the cleaner body 1 connected via the extension pipe 4 and the intake hose 3, and the conductive wire along the intake hose 3 and the extension pipe 4 and the connection mechanism of this conductive line are provided. The rotating brush 53 driven by the electric motor 54 can be reliably driven over a long period of time, and the above-described cleaning assisting operation can be stably performed.
[0034]
In addition, the storage battery 6 is disposed below the communicating portion with the extension pipe 4 that is positioned substantially in the center in the width direction of the floor suction tool 5, and the weight of the floor suction tool 5 in the width direction and the front-rear direction. The balance can be kept good, and when the floor suction tool 5 is lifted from the floor surface, the floor suction tool 5 is not likely to be tilted back and forth or left and right, and the floor suction tool 5 during cleaning. Can be performed well. In addition, the storage battery 6 is configured by arranging cylindrical batteries with high versatility in a row, and can be configured at low cost, and can be disposed compactly below the communication portion.
[0035]
Further, since the storage battery 6 which is a heavy object is disposed below the communicating portion of the extension pipe 4, the center of gravity of the floor suction tool 5 is shifted to the lower position, and movement on the floor surface, Various operations such as handling by lifting upward can be stably performed.
[0036]
【The invention's effect】
As described above in detail, in the vacuum cleaner according to the first aspect of the present invention, the cleaning motor such as a rotating brush, and the floor suction tool provided with the electric motor that drives the cleaning auxiliary unit are connected to the electric motor. Since the storage battery for power supply is provided, no conductive wire is required for power supply from the vacuum cleaner body, the configuration of the intake hose and the extension pipe can be simplified, and cleaning auxiliary means due to poor contact of the conductive wire it becomes possible to prevent the malfunction of the generator in advance, also the battery, as well as disposed on the lower side of the communication portion between the extension tube located in the widthwise central portion of the floor suction tool, said electric motor Since it is coaxially connected to the cleaning assisting means, the weight balance in the front-rear direction and the width direction of the floor suction tool can be kept good, which hinders the handling of the floor suction tool during the cleaning operation. There is no suction on the floor Shifts to lower position the center of gravity of the tool is moved on the floor, it is possible to perform with various operations of handling or the like of lifting upward stable, usability is good.
[0037]
Further, in the vacuum cleaner according to the second aspect of the present invention, since the storage battery configured by arranging a plurality of cylindrical batteries in tandem is used, the storage battery can be configured at a low cost, and can be compactly provided below the communication portion. The present invention has an excellent effect such that it can be arranged.
[Brief description of the drawings]
FIG. 1 is a side view showing an external appearance of a vacuum cleaner according to the present invention when not in use.
FIG. 2 is a top view of a floor suction tool used in the vacuum cleaner according to the present invention.
FIG. 3 is a bottom view of the floor suction tool shown in FIG. 2;
4 is a cross-sectional view taken along line IV-IV in FIG.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Charging stand 3 Intake hose 4 Extension pipe 5 Floor suction tool 6 Storage battery
50 Connecting pipe
51 Suction housing
52 Suction port
53 Rotating brush (cleaning aid)
54 Electric motor
60 Battery compartment

Claims (2)

Suction that is detachably attached to the distal end of an extension pipe connected to the suction port of the vacuum cleaner main body via a flexible suction hose and opens wide around the communication part with the extension pipe In a vacuum cleaner provided with an electric motor and cleaning auxiliary means driven by the electric motor inside the floor suction tool provided with a mouth,
A storage battery for supplying electric power to the electric motor is disposed inside the floor suction tool at a position below the communicating portion with the extension pipe, and the electric motor is coaxially connected to the cleaning auxiliary means. A featured vacuum cleaner.   2. The vacuum cleaner according to claim 1, wherein the storage battery is configured by arranging a plurality of cylindrical batteries in a row.

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