JPS646767B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a vacuum cleaner, and more particularly to a so-called stick-type vacuum cleaner.

[Conventional technology]

A conventional stick-type vacuum cleaner has a structure in which an extension tube is attached to a small vacuum cleaner body, and a suction port is attached to the tip of the extension tube.

[Problem that the invention seeks to solve]

However, although this type of structure is suitable for cleaning floors and low places close to them, the tip is too long and heavy for cleaning places much higher than the floor, such as walls and table tops. It's too much and not suitable.

By the way, there are small vacuum cleaners with built-in rechargeable batteries that are used to clean table tops, etc., but in order to make these types of vacuum cleaners smaller and easier to use, the rechargeable batteries have a lower capacity. Since it cannot be made large and its output is generally low, it can only clean relatively small and simple areas such as table tops, and the output is insufficient for cleaning carpets and the like.

The present invention was created in view of these problems, and it takes advantage of the advantages of small vacuum cleaners that use rechargeable batteries, eliminates their disadvantages, and enables cleaning regardless of the height of the cleaning area. The purpose is to provide a vacuum cleaner that is easy and convenient to use.

[Means for solving problems]

The vacuum cleaner of the present invention removably fits into a handy-type vacuum cleaner body that has a suction port at one end, a locking part at the other end, and an electric blower inside. It has a fitting part, and one end of the fitting part is connected to an extension tube that is fitted and connected to the suction port of the vacuum cleaner main body, and the other end of the fitting part is connected to the locking part of the vacuum cleaner main body. A support body is provided with an engaging body that is removably engaged, has a handle at the rear, and connects a suction port body to the tip of the extension pipe,
The suction port of the vacuum cleaner body fitted to the fitting portion of the support body is fitted and connected to the extension tube, and the engagement body is removably locked to the locking portion to fit the support body. The electric blower has a pair of stator coils each having intermediate taps, and AC power applied between both ends of the pair of stator coils and each of the pair of stator coils. The electric blower is driven by either of the batteries applied between the intermediate taps, and the battery is provided in the vacuum cleaner body, and the vacuum cleaner body is provided with a high output circuit between both ends of the pair of stator coils of the electric blower. A first selector switch is provided to open and close a low output circuit between each intermediate tap of the stator coil, and when the vacuum cleaner main body is fitted to the fitting portion of the support, the high output circuit of the electric blower is an AC power supply circuit connected to the battery, and connecting both poles of the battery to a low output circuit between intermediate taps of each stator coil of the electric blower when the vacuum cleaner main body is removed from the fitting part of the support body; The present invention is also characterized by providing a second changeover switch that disconnects the low output circuit of the electric blower and the battery when the vacuum cleaner main body is fitted into the fitting portion of the support. .

[Effect]

In the vacuum cleaner of the present invention, when cleaning a low place such as a floor surface, the vacuum cleaner main body is fitted into the fitting part of the support, the suction port is fitted and connected to the extension pipe, and the suction port is engaged with the locking part. When the vacuum cleaner body is attached to the fitting part of the support by releasably locking the combination, the low output circuit is opened by opening the second changeover switch, and when the first changeover switch is closed, The high output circuit is connected to the AC power circuit of the support, and the electric blower is driven at high output by the AC power source. In addition, when cleaning a high place such as a table, when the vacuum cleaner body is removed from the fitting part of the support, the low output circuit is closed by closing the second changeover switch, and the low output circuit is closed by switching the first changeover switch. Then, the low power circuit is connected to the battery, and the electric blower is driven by the battery at low power.

〔Example〕

Hereinafter, one embodiment of the present invention will be described based on the drawings.

Reference numeral 1 denotes a small hand-held type vacuum cleaner body, and the vacuum cleaner body 1 includes a main body case 3 in which an electric blower 2 is built-in, and a collection unit that is detachably attached to the front side of the main body case 3, which is the suction side of the electric blower 2. It is formed by a dust case 4.

An exhaust port 11 for discharging exhaust gas from the electric blower 2 is formed on the rear side of the main body case 3, and a locking recess 12 serving as a locking portion is formed above the exhaust port 11. Main case 3
A handle 13 is formed on the top of the handle 13, and a first switch button 14 is provided near the handle 13. Furthermore, a concave engagement receiving part 15 is provided on the front lower edge of the main body case 3 and protrudes toward the rear lower edge of the dust collection case 4, and is engaged with the front upper edge of the main body case 3. A hole 16 is provided, and an engaging claw 17 is provided protruding from the front upper edge of the main body case 3 toward the engaging hole 16 side. Further, a second switch button 19 is provided on the lower surface of the main body case 3 and is biased by a spring 18 and protrudes.

The dust collection case 4 has a suction port 21 on the front side.
It has an on-off valve 22 inside this suction port 21, and a nozzle storage recess 24 for storing a nozzle 23 connected to this suction port 21 is provided on the upper surface, and A filter device 25 is fitted on the edge, and an engagement protrusion 2 that engages with the engagement receiving portion 15 of the main body case 3 is provided on the rear lower edge.
6 is provided protrudingly, and a clamp 27 that is inserted into the engagement hole 16 of the main body case 3 and engages with and disengages from the engagement claw 17 is rotatably provided on the rear upper edge.

The vacuum cleaner main body 1 may be used alone or attached to a support 31, and the support 31 fits and holds the front, bottom, and rear surfaces of the vacuum cleaner main body 1. Fitting part 3 of box-shaped body
2, passing through the front side wall of this fitting part 32,
An elongated extension tube 33 whose proximal end is connected to the suction port 21 of the vacuum cleaner main body 1 is provided extending forward, and a suction port body 34 is detachably connected to the tip of the extension tube 33. A handle 35 is provided on the upper rear side of the portion 32 to protrude rearward. The extension tube 33 can be freely divided in the middle.

Furthermore, an exhaust port 11 of the vacuum cleaner main body 1 is provided on the rear side wall of the fitting part 32 and in a lower part of the handle 35.
A ventilation hole 36 is formed in the upper part of the rear side wall so that the fitting part 32 is biased by a spring 37 and inserted into the locking recess 12 of the vacuum cleaner main body 1 and released. An engaging rod 38 is provided as a locking body.

Furthermore, first and second hooks 39 and 40 are provided on the bottom surface of the fitting portion 32 and protrude from the front and rear sides of the bottom surface, respectively.
The first hook 39 is bent toward the front of the cleaner body 1, and the second hook 40 is rotatably attached.

A hook hole 41 is formed in the center of the bottom surface of the fitting portion 32, and a third hook 42 that engages with this hook hole 41 is attached to, for example, a wall surface 43 of the room.

Further, an electric cord 44 is led out from the front end of the handle 35, and this electric cord 44 usually
It is wound around the first and second hooks 39 and 40.

As shown in the circuit diagram shown in FIG. 6, the electric circuit of this vacuum cleaner includes an in-body circuit section 51 provided in the vacuum cleaner main body 1 and an in-support circuit section 52 provided in the support body 31. The circuit parts 51 and 52 are connected by fitting into the fitting part 32 of the cleaner body 1.

The main body circuit section 51 includes an AC circuit 53 serving as a high output circuit that supplies a high output alternating current to the electric blower 2, and a DC power supply circuit 54 serving as a low output circuit supplying a low output to the electric blower 2. ing.

The AC circuit 53 connects a first changeover switch 56 that is switched by the first switch button 14 between a pair of AC terminals 55, a first coil 57, the electric blower 2, and a second coil 58 in series. formed by connecting.

The DC power supply circuit 54 also includes a resistor 60 between the pair of DC terminals 59 and a (-) resistor on the resistor 60 side.
Rechargeable battery 6 as a high-power DC power source with its end turned
1 are connected in series, and furthermore, this rechargeable battery 61
The (-) end of the coil is connected to the intermediate portion of the first coil 57 via the second changeover switch 62 opened and closed by the second switch button 19 and the first changeover switch 56, and the The (+) end of the rechargeable battery 61 is connected to the middle portion of the second coil 58.

Further, the circuit section 52 in the support is connected to the electric cord 4 from an external AC power source 71 as a high output power source.
4, an AC power supply circuit 72 that supplies an alternating current to the AC circuit 53 of the internal circuit 51, and a DC charging current that receives the AC current from the AC power supply 71 and supplies a DC charging current to the DC power circuit 54 of the internal circuit 51. It is formed by a charging circuit 73 that supplies .

The AC power supply circuit 72 has a pair of AC power supply terminals 74 that are connected to the pair of AC terminals 55 of the AC circuit 53 when fitted to the fitting portion 32 of the vacuum cleaner main body 1, and the charging circuit 73 has a transformer 75 connected to an AC power source 71, and two diodes 77 and 78 are connected in opposite directions to both ends of a secondary coil 76 of this transformer 75, respectively. ) side is connected to the charging terminal 79, and the above-mentioned 2
(+) side charging terminal 79 in the middle position of the next coil
is connected.

Next, the operation of the vacuum cleaner of this embodiment will be explained.

When using this vacuum cleaner to clean low places such as floors, the vacuum cleaner main body 1 is fitted into the fitting part 32 of the support 31.

When the vacuum cleaner main body 1 is fitted into the fitting part 32, each pair of AC terminals 55 and a pair of DC terminals 59 of the internal circuit section 51 provided in the vacuum cleaner main body 1 are connected to the support provided in the support 31. The AC circuit 53 and the AC power circuit 7 are respectively connected to a pair of DC power terminals 74 and a pair of charging terminals 79 of the circuit section 52.
2 are connected, and at the same time, the DC power supply circuit 54 and the charging circuit 73 are connected.

Further, by fitting the vacuum cleaner main body 1 into the fitting part 32, the second switch button 19 is pressed, the second changeover switch 62 is turned off, and the DC power supply circuit 54 is opened.

Therefore, even if the first changeover switch 56 is turned on to the DC power supply circuit 54 side, the electric blower 2 will not operate.
On the other hand, when the first selector switch 56 is turned on to the AC circuit 53 side, the electric blower 2 is operated by the AC power source 71 as a high-output power source, so it is possible to obtain the high suction power necessary for cleaning rugs, etc. can.

By the way, when the vacuum cleaner main body 1 is fitted into the fitting part 32, the charging circuit 73 and the rechargeable battery 61 of the DC power supply circuit 54 are connected, so the rechargeable battery 61
Charging is performed. Since this charging is performed even while the electric blower 2 is being operated with the alternating current from the alternating current power supply circuit 72 and the alternating current circuit 73, the charging efficiency is high.

Next, when cleaning a slightly high place such as the top of a table, the extension tube 33 of the support body 31 is too long and difficult to clean, so the vacuum cleaner body 1 is moved to the fitting part 3 of the support body 31.
Remove from 2. When the vacuum cleaner main body 1 is removed from the fitting part 32 of the support 31, the second switch button 19 protrudes and the second changeover switch 62 is turned on, so that the rechargeable battery 61 can be used as a low-output DC power source. , the first selector switch 56 is switched to the DC power supply circuit 5.
When the air blower is set to the 4 side, the electric blower 2 is operated by the low-output rechargeable battery 61, so cleaning is performed in this state. The suction force obtained at this time is weaker than when using a high-output AC power source as described above, but it is sufficient for cleaning simple areas such as table tops. and,
In this case, the nozzle 23 is removed from the nozzle storage recess 24 and inserted into the suction port 21.

By the way, the electric circuit of the vacuum cleaner is divided into an in-body circuit part 51 on the side of the vacuum cleaner body 1 and an in-support circuit part 52 in the support body 31, and there is no charging transformer 75 or the like in the vacuum cleaner body 1. So, the vacuum cleaner body 1
The weight of the vacuum cleaner body 1 is reduced, making it easier to hold and cleaning.

When the cleaning is finished, the vacuum cleaner main body 1 is fitted into the fitting part 32 of the support 31 and the indoor wall surface 43 is fitted.
The hook hole 41 is engaged with a third hook 42 provided in the vacuum cleaner body to hang the electric vacuum cleaner which is integrated with the support and the vacuum cleaner main body.

By the way, the electric cord 44 is stored by being wound around the first and second hooks 39 and 40, but when the electric cord 44 is to be used again, the second hook 40 is rotatable. Therefore, if you turn the L-shaped bending direction inward, this second
Since the electric cord 44 that was hooked on the hook 40 of the electric cord can be removed at once, it can be removed more quickly than unwinding it.

In this embodiment, a rechargeable battery 61 is used as a low-output power source, but a simple dry cell battery may also be used.

〔Effect of the invention〕

According to the present invention, the vacuum cleaner body can be freely attached to and detached from the support body, and can be used with the vacuum cleaner body attached to the support body or used only with the vacuum cleaner body, depending on the place to be cleaned. In particular, when cleaning a simple area such as a table top using only the vacuum cleaner body, the suction power is moderately reduced with low output, and the vacuum cleaner can be cleaned with a moderate suction power.

[Brief explanation of drawings]

FIG. 1 is a longitudinal sectional view showing one embodiment of the vacuum cleaner of the present invention, FIG. 2 is a perspective view thereof, FIG. 3 is a longitudinal sectional view of the fitting portion of the support and the vacuum cleaner body, and FIG. 5 is an enlarged longitudinal sectional view of the second switch button, and FIG. 6 is a circuit diagram showing the electric circuit of the vacuum cleaner. 1...Vacuum cleaner body, 2...Electric blower, 12...
...Latching recess serving as a locking part, 21... Suction port, 31
... Support body, 32 ... Fitting part, 33 ... Extension tube,
34... Suction port body, 35... Handle, 38... Engaging rod serving as an engaging body, 53... AC circuit of high output circuit, 54... DC power supply circuit of low output circuit, 56...
...First changeover switch, 57, 58... First and second coils of the stator coil, 71... AC power supply, 72... AC power supply circuit of high output circuit.

Claims (1)

[Scope of Claims] 1. A handy-type vacuum cleaner body having a suction port at one end, a locking portion at the other end, and an electric blower installed inside, and a fitting for removably fitting the vacuum cleaner body. An extension tube is connected to one end of the fitting part to be fitted and connected to the suction port of the vacuum cleaner main body, and the other end of the fitting part is connected to the locking part of the vacuum cleaner main body. A vacuum cleaner main body is provided with an engaging body that can be freely engaged, and a support body that has a handle at the rear and connects a suction port body to the tip of the extension tube, and that is fitted into the fitting part of the support body. The suction port of the electric motor is fitted and connected to the extension pipe, and the engaging body is removably locked to the locking part so that the vacuum cleaner main body can be detachably attached to the fitting part of the support; The blower is an electric blower that has a pair of stator coils each having an intermediate tap, and is driven by either an AC power applied between both ends of the pair of stator coils or a battery applied between each intermediate tap of the pair of stator coils. The battery is provided in the vacuum cleaner body, and the vacuum cleaner body is configured to switch between a high output circuit between both ends of the pair of stator coils of the electric blower and a low output circuit between each intermediate tap of the pair of stator coils. a first selector switch that opens and closes; an AC power supply circuit that is connected to the high-output circuit of the electric blower when the vacuum cleaner main body is fitted to the fitting portion of the support; When removed from the fitting part of the support body, both poles of the battery are connected to a low output circuit between intermediate taps of each stator coil of the electric blower, and the vacuum cleaner body is fitted into the fitting part of the support body. A vacuum cleaner characterized in that a second changeover switch is provided which opens a connection between a low output circuit of the electric blower and the battery when the electric blower is turned on.