JP2002143059A - Electric vacuum cleaner - Google Patents

Abstract

(57) [Summary] [PROBLEMS] The present invention can be used not only as a normal canister type or the like, but also in a state where a suction port body is separated from a cleaner body. . SOLUTION: The vacuum cleaner main body 10 has a built-in electric blower 19 and a dust collecting part 20 disposed on the suction side of the electric blower 19, and has a suction port 44 and has a communication pipe 30 through a communication pipe 30. And a suction port body 29 detachably connected to the suction port body 2.
9, a fan motor 42, a dust collection chamber 40 disposed on the intake side of the fan motor 42 and communicating with the communication pipe 30, and a secondary battery 55 for driving the fan motor 42.
And a valve 33 capable of shutting off the communication between the dust collection chamber 40 and the communication pipe 30 is provided in the suction opening 29 or the communication pipe 30.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a vacuum cleaner driven by an AC power supply and a DC power supply.

[0002]

2. Description of the Related Art In a conventional general vacuum cleaner, air containing dust or the like is sucked from a suction port of a suction port body facing a surface to be cleaned by a suction action of an electric blower to a dust collecting section. By passing the dust, the dust is captured by the dust collecting filter. In addition, the dust collecting section is detachable so as to clean or replace the dust collecting filter for discarding accumulated dust and the like. In addition, the electric blower
Power was supplied from an AC power supply via a power cord.

Further, as a cordless vacuum cleaner using a secondary battery as a power source, a vacuum cleaner having a structure in which a dust collecting chamber and an electric blower are integrated into a suction port, and a rod-shaped handle is mounted on the suction port is known. I have.

[0004]

However, although the conventional vacuum cleaner is suitable for cleaning the floor surface or a place close thereto,
The tip is too long to clean a place much higher than the floor, such as a wall or a table, or the upright type or the like requires the entire vacuum cleaner to be lifted, and the canister type needs to lift the hose, extension pipe, and suction port to be too heavy. Is not suitable. Further, the effective length of the power cord is generally about 5 meters. When cleaning a large room, the work of replacing the power plug of the power cord with another outlet occurs, and the cleaning is interrupted, so that the working efficiency is not improved.

[0005] Also, the above-mentioned cordless type using a DC power source such as a secondary battery has the same problem.

Accordingly, an object of the present invention is to provide an electric vacuum cleaner which can be used not only as a normal canister type or the like but also in a state where the suction opening is separated from the main body of the cleaner.

Another object of the present invention is to provide a vacuum cleaner capable of increasing the suction force when used as a canister type or the like.

According to a third aspect of the present invention, there is provided an electric vacuum cleaner capable of collecting dust in a dust collecting chamber of a suction port into a dust collecting portion of a cleaner body when used as a canister type or the like. Aim.

According to the fourth aspect of the present invention, when the suction opening is separated from the main body of the cleaner and the suction power is small using the secondary battery, the dust collecting effect can be improved by utilizing the exhaust air. The purpose is to provide a machine.

Another object of the present invention is to provide an electric vacuum cleaner capable of charging a secondary battery when used as a normal canister type or the like.

[0011]

According to a first aspect of the present invention, there is provided an electric fan having a built-in electric blower and a dust collecting portion disposed on an intake side of the electric blower. In a vacuum cleaner comprising a cleaner body, and a suction body having a suction port and detachably connected to the cleaner body via a communication pipe, a fan motor and the fan motor are provided in the suction port body. A dust collecting chamber disposed on the suction side and communicating with the communication pipe and a secondary battery for driving the fan motor are provided, and the suction port or the communication pipe is provided with the dust collection chamber and the communication pipe. A valve capable of shutting off the communication state is provided.

According to a second aspect of the present invention, in the electric vacuum cleaner according to the first aspect, the electric blower of the electric vacuum cleaner is driven by an AC power supply.

According to a third aspect of the present invention, in the vacuum cleaner according to the first or second aspect, the valve is connected to the suction port when the electric blower is driven with the suction port connected to the main body of the vacuum cleaner. It is characterized in that the body dust collection chamber and the communication pipe are communicated.

According to a fourth aspect of the present invention, in the vacuum cleaner according to any one of the first to third aspects, the valve shields a communication state between the dust collection chamber of the suction port body and the communication pipe and the fan. When the motor is driven, the exhaust air from the fan motor is returned to the suction port of the suction port body.

According to a fifth aspect of the present invention, in the electric vacuum cleaner according to any one of the first to fourth aspects, the fan motor is rotated by a suction wind generated by driving the electric blower of the electric vacuum cleaner main body, and the electric power is supplied to the secondary battery. It is characterized by applying an electromotive force.

[0016]

Embodiments of the present invention will be described below in detail with reference to the drawings.

In FIGS. 1 to 6, as shown in FIG. 1, reference numeral 10 denotes a main body of the electric vacuum cleaner.
A lower body case 11 having an open upper surface, and an upper body case 12 for closing an upper rear portion of the lower body case 11 are joined to a peripheral edge including a front surface with a bumper 13 interposed therebetween to form a body case 14 having an open front upper surface. I have. The cleaner main body 10 is provided with a lid 15 for opening and closing the opening on the front upper surface of the main body case 14.

Further, the main body case 12 has a pivotable swivel wheel 16 attached to a lower portion on the front side in the traveling direction.
A wheel 17 is rotatably mounted on the rear side surface of the vehicle.
Further, a handle 18 which can be moved up and down is provided on the upper part of the main body case 14.

The electric blower 1 is located behind the cleaner body 10.
9 is disposed, and a dust collecting section 20 having a dust collecting filter (not shown) is formed on the intake side of the electric blower 19. Further, in front of the cleaner main body 10, an intake port 21 that opens toward the dust collecting section 20 is provided. By opening the lid 15 upward, the dust collection filter can be easily attached and detached.
Further, the cleaner body 10 is provided with a power cord 22 and a power plug 23 connected to an outlet of an AC power supply for driving the electric blower 19.

A hose 24 as a communication pipe is provided with a flexible hose body 25 and one end of the hose body 25.
It comprises a connection pipe 26 detachably attached to the suction port 21 of the cleaner main body 10 and a grip 27 provided at the other end of the hose main body 25.

A suction port 29 can be detachably attached to the grip 27 via an extension pipe 28 as a communication pipe. Further, the suction port body 29 can be directly attached to the grip portion 27 without passing through the extension tube 28.

As shown in FIG. 4, the suction port body 29 rotatably supports the connecting pipe 30 and the suction port case main body 31 with a ring (not shown).

An opening 32 of the connecting pipe 30 is provided with a valve 33 for opening and closing the opening 32. The valve 33 has a perfect circular shape so as to substantially match the cross-sectional shape of the connecting pipe 30 and has a thickness of 1 to 2 made of a deformable material such as rubber.
mm is used. The valve 33 is supported in the opening 32 of the connection pipe 30 by using a support hole 34, and can be opened and closed using the support hole 34 as a fulcrum.

As shown in the figure, a suction case body 31 for rotatably supporting the connecting pipe 30 has a lower case 35 with an open upper surface, and an upper surface of the lower case 35 removably covering the upper opening. Upper case 36 opening lower part of material
And the lower case 35 and the upper case 36 are connected and fixed with a buffer member 37 made of a soft member interposed along the peripheral surface including the front surface of the upper case 36.

The suction port case body 31 defines a horizontally long suction chamber 39 by a rib 38 and a dust collection chamber 40 communicating with the suction chamber 39 at a substantially rear center of the suction chamber 39 by cutting the rib 38. Although not shown, a check valve (not shown) for preventing dust from coming out of the dust collection chamber 40 to the suction chamber 39 is provided at a location where the rib 38 is cut. On the exhaust side of the dust collecting chamber 40, a fan motor 42 for taking in air through a dust collecting filter 41 is attached. An exhaust filter 43 is provided on the exhaust side of the fan motor 42, and the air sucked by the operation of the fan motor 42 is exhausted to the suction chamber 39.

When the electric blower 19 of the vacuum cleaner main body 10 is used, the exhaust filter 43 performs an air suction operation, and is sucked from the suction chamber 39 to supply the fan motor 4.
Dust in the air flowing to the two sides is filtered, and the fan motor 42 is cooled by the filtered air. Further, it has a function of a generator (not shown) for applying energy to the motor coil by rotating the fan of the fan motor 42.

A suction port 44 is opened on the lower surface of the suction chamber 39 opposite to the floor surface, which is the cleaning surface, so as to be located on the front side in the running direction of the suction port case body 31. The suction port 44 communicates with the suction port 21 of the cleaner body 10.

A suction chamber 39 is provided in the suction case 31.
And a rotary cleaning body 46 rotatably supported by bearings 45 provided at both left and right ends of the rotary cleaning member. This rotary cleaning body 4
Reference numeral 6 denotes a shaft 48 provided with a concave groove 47 in a spiral shape in the axial direction of the peripheral surface, and a cleaning blade as a cleaning member provided in a spiral shape with which one end along the longitudinal direction of the concave groove 47 of the shaft 48 engages. 49.

A pulley 50 is attached to one end of the rotary cleaning body 46, and a belt 53 is hung as a power transmission means between the pulley 50 and the pulley 52 of the electric motor 51 provided in the suction port case main body 31. The torque of the electric motor 51 is transmitted via the belt 53.

The rotary cleaning body 46 has a lower end facing the suction port 44 and a lower end located above a plane formed by the driven front wheel 54 and the driven rear wheel (not shown), and is in contact with a flat floor surface. Instead, the cleaning blade 49 comes into contact with the detent on the uneven floor surface on which the driven front and rear wheels that sink into the suction port 44 sink.

Further, the fan motor 4 is
Two and a secondary battery, for example, a nickel cadmium storage battery, serving as a DC power supply 55 of the electric motor 51 are housed by connecting four in series, and are connected to the fan motor 42, the electric motor 51, and the operation switch 56 by wiring (not shown).

The suction port 29 is provided with an openable and closable battery cover 57 for detachably inserting and removing the operation switch 56 and the power supply 55 and an openable and closable filter cover 58 for detachably attaching the dust collecting filter 41.

When the suction port body 29 is used as a separate vacuum cleaner, the operation switch 56 is turned on / off to drive the fan motor 42 and the electric motor 51 with a DC power supply as a secondary battery.・ It is designed to stop.

The vacuum cleaner body 10 is used as an electric vacuum cleaner.
When the hose 24, the extension pipe 28 and the suction port body 29 are connected to be used, the electric blower 19 and the electric motor 51 of the suction port body 29 are turned on and off by turning on / off a main body switch (not shown) provided on the gripping pipe 27. Are driven and stopped by the AC power supply. When using the AC drive, it is, of course, necessary to turn off the DC power supply.

Next, the operation of the above embodiment will be described.

As shown in FIG. 1, a vacuum cleaner is used with an AC power supply capable of obtaining a large suction force. For example, when cleaning the floor, the user is required to use the suction port 21 of the cleaner body 10. Is connected to the connection pipe 26 of the hose 24, and the suction port body 29 is connected via the gripping pipe 27 and the extension pipe 28. Further, the power plug 23 of the power cord 22 is plugged into a nearby outlet.

The user holds the grip portion 27 of the hose,
When a main body switch (not shown) is turned on, the electric blower 19 is turned on.
Then, the electric motor 51 is driven, and the valve 33 that closes the opening 32 of the suction port body 29 is opened by the suction action of the electric blower 19, and the suction port 44 and the air path of the cleaner body 10 are communicated.

The rotary cleaning body 46 is rotated by the power transmission means from the electric motor 51 of the suction opening 29, and the suction opening 29 is operated back and forth to suck dust from the suction opening 44 and to be captured by the dust collection unit 20.

Further, when the user moves to clean another place, but the length of the power cord 22 is insufficient, or when cleaning a high place, the main body switch is turned off and the AC power supply is turned off. Stop using. Then prepare to use a DC power supply.

First, according to the place of use, the suction port 29
Is determined to be removed from the extension tube 28 or used with the extension tube 28 attached, and the state is adjusted. Then, when the operation switch 56 is turned on, the fan motor 42 and the electric motor 51 are driven by the power source 55 of the secondary battery. Pulley 52 and pulley 50 directly connected to motor 51
The rotating cleaning body 46 transmitted by the belt 53 rotates, the air including dust and the like on the surface to be cleaned, which is the lower surface of the suction port 44, is scooped up and captured by the dust collecting filter 41 of the dust collecting chamber 40 by the fan motor 42. Is done.

Further, the exhaust air passing through the exhaust filter 43 is efficiently discharged to the surface to be cleaned through the suction port 44, and the air is circulated so that the cleaning can be performed effectively. That is, in the case of cleaning using a secondary battery that does not always have a strong suction force, the dust collection efficiency can be increased by using the exhaust air. At that time, the valve 33 is connected to the fan motor 4
The opening 32 is closed by the valve 33 and sucked by the negative pressure effect of 2, and the extension pipe 28, the cleaner main body 10 and the suction opening 29 are cut off.

In this state, when the operation switch 56 is turned off and cleaning with the secondary battery is completed, the suction port body 29 is attached to the extension tube 28, and the extension tube 28 is attached to the grip portion 27.
It is integrated with the cleaner body 10. When a main body switch (not shown) is turned on, a negative pressure action is generated by the electric blower 19, the valve 33 of the suction port body 29 is sucked and opened toward the electric blower 19, and an air path is communicated from the suction port 44 to the dust collecting section 20. You. In this state, dust and the like trapped in the suction port body 29 dust collecting chamber 40 are trapped in the dust collecting section 20 together with air. Since dust does not accumulate in the dust collection chamber 40, a clean state is always maintained.

The dust collected in the dust collecting chamber 40 when the secondary battery is used for cleaning is moved through the suction port 29 to the cleaner body 10.
Each time it is connected and cleaned, the dust is collected by the dust collecting section 20, so that the dust collecting capacity of the dust collecting chamber 40 can be reduced, and as a result, the suction port body 29 can be prevented from being enlarged. In addition, since the capacity of the secondary battery can be reduced accordingly, a small and lightweight vacuum cleaner can be manufactured.

When the electric blower 19 is driven by connecting the suction opening 29 to the cleaner main body 10, the suction opening 2
The secondary battery 55 is charged by rotating the fan of the fan motor 42 in the air passage passing through the exhaust filter 43 from the suction port 44 of the ninth and giving energy to a motor coil (not shown). First, the suction port body 29 was separated as a vacuum cleaner and discharged using the secondary battery 55. However, since the secondary battery is charged by using the electric blower 19, a special charging operation can be suppressed as much as possible. It will be possible to obtain efficient usage.

The vacuum cleaner of the present invention is not limited to the canister type and the stick type, but can be applied to other types. Further, the electric blower 19 of the cleaner body can be driven by a secondary battery.

It should be noted that the present invention is not limited to the above-described embodiment, and can be variously modified at the stage of implementation without departing from the scope of the invention. Further, the embodiments include inventions at various stages, and various inventions can be extracted by appropriately combining a plurality of disclosed constituent elements. For example, even if some components are deleted from all the components shown in the embodiments, the problem described in the column of the problem to be solved by the invention can be solved, and the problem described in the column of the effect of the invention can be solved. In the case where a certain effect can be obtained, a configuration from which this configuration requirement is deleted can be extracted as an invention.

[0047]

As described above, the electric vacuum cleaner according to the first aspect has an effect that it can be used not only as a normal canister type or the like but also in a state where the suction opening is separated from the main body of the vacuum cleaner.

Further, the vacuum cleaner according to the second aspect has the effect of increasing the suction force when used as a canister type or the like.

According to the third aspect of the invention, when used as a canister type or the like, there is an effect that dust in the dust collection chamber of the suction opening can be collected in the dust collection portion of the cleaner body.

According to the fourth aspect of the present invention, when the suction opening is separated from the main body of the vacuum cleaner and the suction force is small using the secondary battery, the effect of improving the dust collecting effect by utilizing the exhaust air can be obtained. Have.

Further, the invention according to claim 5 has an effect that the secondary battery can be charged when used as a normal canister type or the like.

[Brief description of the drawings]

FIG. 1 is a perspective view showing the appearance of a vacuum cleaner according to the present invention.

FIG. 2 is a perspective view of a suction opening of the vacuum cleaner according to the present invention.

FIG. 3 is a plan view of the vacuum cleaner according to the present invention in which an upper case of a suction opening body is removed.

FIG. 4 is a central side sectional view of a suction port of the vacuum cleaner according to the present invention;

FIG. 5 is a sectional view taken along line AA of FIG. 3;

FIG. 6 is a sectional view taken along line BB of FIG. 3;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Vacuum cleaner main body 19 Electric blower 20 Dust collection part 29 Suction port body 30 Communication pipe 33 Valve 40 Dust collection chamber 42 Fan motor 44 Suction port 55 Secondary battery

Claims (5)

[Claims] 1. A vacuum cleaner main body having a built-in electric blower and a dust collecting portion disposed on an intake side of the electric blower, and having a suction port and being detachably connected to the cleaner main body through a communication pipe. In the vacuum cleaner having a suction port body, a fan motor, a dust collection chamber disposed on the suction side of the fan motor and communicating with the communication pipe, and a second drive for driving the fan motor are provided in the suction port body. A vacuum cleaner provided with a secondary battery and a valve provided in the suction port body or the communication pipe to shut off a communication state between the dust collection chamber and the communication pipe. 2. The vacuum cleaner according to claim 1, wherein the electric blower of the vacuum cleaner main body is driven by an AC power supply. 3. The vacuum cleaner according to claim 1, wherein the valve is connected to the dust collecting chamber of the suction port body when the suction port is connected to the vacuum cleaner main body and the electric blower is driven. An electric vacuum cleaner characterized by communicating with a communication pipe. 4. The vacuum cleaner according to claim 1, wherein the valve blocks a communication state between the dust collection chamber of the suction port body and the communication pipe, and the fan motor is driven. The vacuum cleaner, wherein the exhaust air from the fan motor is returned to the suction port of the suction port body. 5. The electric vacuum cleaner according to claim 1, wherein the fan motor is rotated by suction air generated by driving an electric blower of the electric vacuum cleaner body to apply an electromotive force to the secondary battery. Characterized vacuum cleaner.