JPS644445B2 - - 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.

The present invention was made in view of these problems, and an object of the present invention is to provide a vacuum cleaner that is easy to clean and easy to use, regardless of the height of the cleaning place.

[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 main body of the vacuum cleaner can be detachably attached to the support body, and the support body is provided with an AC power circuit and a charging circuit that operates with AC power from the AC power circuit, and the AC power circuit and the electric blower are provided on the vacuum cleaner body. and a rechargeable battery that is connected to the charging circuit to be charged, and the rechargeable battery is connected to the electric blower via a changeover switch. .

[Effect]

In the present invention, when cleaning a low place such as a floor surface, the vacuum cleaner body is fitted into the fitting part of the support body, the suction port of the vacuum cleaner body is fitted and connected to the extension pipe, and the suction port is engaged with the locking part. Attach the vacuum cleaner main body to the fitting part of the support by releasably locking the combination, and when cleaning high places such as table tops, remove the vacuum cleaner main body from the fitting part of the support. The product is designed to be able to be used with either DC or AC power so that it can be used to clean high places where the cord cannot reach, and
A rechargeable battery as a DC power source is provided in the vacuum cleaner body, and a charging circuit for charging this rechargeable battery is provided on the support side.By separating the two, the weight of the vacuum cleaner body is reduced and operability is improved. Furthermore, the rechargeable battery can be charged at the same time while the AC power supply is being used.

〔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 in a protruding manner, and a clamp 27 which 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 side.

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. Box-shaped fitting part 3
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.

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 an engaging body.

Further, a first and a second
Hooks 39 and 40 are provided protruding from the front and rear sides of the bottom surface, respectively, and the first and second hooks 39, 40
40 are each formed in a substantially L-shape, the first hook 39 is bent toward the front of the cleaner body 1, and the second hook 40 is rotatably attached.

Further, 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 two circuit parts 51 and 52 are connected by fitting into the fitting part 32 of the cleaner main body 1.

The internal circuit section 51 includes an AC circuit 53 that supplies alternating current to the electric blower 2, and a DC power supply circuit 54 that supplies direct current to the electric blower 2.

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.
A rechargeable battery 61 as a DC power source with one end facing forward is connected in series, and the (-) end of the rechargeable battery 61 is connected to a second changeover switch 62 which is opened and closed by the second switch button 19 and the other end is connected in series. It is connected to the intermediate portion of the first coil 57 via the first changeover switch 56, and the (+) end of the rechargeable battery 61 is connected to the intermediate portion of the second coil 58.

The in-support circuit section 52 also includes an AC power circuit 72 that supplies an alternating current from an external AC power source 71 to the AC circuit 53 of the in-body circuit 51 via the electric cord 44; A charging circuit 73 receives current and supplies a DC charging current to the DC power supply circuit 54 of the internal circuit 51.

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 supply 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 charging terminal 79 is connected, and the above-mentioned 2
The (+) side charging terminal 79 is located 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 supply 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 changeover switch 56 is set to the AC circuit 53 side and the AC power source 71 is turned on, the electric blower 2
is activated, so clean in this state.

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 53, 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, making it possible to use the rechargeable battery 61 as a DC power source. ,
When the first changeover switch 56 is turned on to the DC power supply circuit 54 side, the electric blower 2 is operated by the rechargeable battery 61, so cleaning is performed in this state. 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 electric vacuum cleaner is divided into an in-body circuit section 51 on the side of the vacuum cleaner body 1 and an in-support circuit section 52 in the support body 31, and there is no charging transformer 75 etc. inside the vacuum cleaner body 1. , the weight of the vacuum cleaner body 1 itself is reduced, making it easier to hold the vacuum cleaner body 1,
Easy to clean.

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 is engaged with a third hook 42 provided in the vacuum cleaner body, and the vacuum cleaner, which is integrated with the support and the vacuum cleaner main body, is hung.

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 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.

Note that in this embodiment, the second changeover switch 62
When the vacuum cleaner main body 1 is attached to the fitting part 32, the second changeover switch 62 is turned off and the rechargeable battery 61 cannot be used. If not, when the vacuum cleaner main body 1 is used by fitting into the fitting part 32 of the support body 31, the first changeover switch 56
Depending on the selection, it can be used with either AC or DC. Therefore, if the electric cord 44 is not long enough and can be operated with DC current from the DC power supply circuit 54 even in a place where the suction port 34 of the support body 31 cannot reach, the electric cord 44 can be connected from an indoor outlet. You can clean it by removing it and going to hard-to-reach areas.

In addition, in this embodiment, the vacuum cleaner main body 1 is connected to the fitting part 3.
2, the AC power supply circuit 72 on the support 31 side
Since the AC circuit 53 on the side of the vacuum cleaner body 1 is separated, only the DC power circuit 54 side can be used, but it is also possible to use AC current by connecting an electric cord with a new plug to the AC circuit. become.

Further, instead of the first changeover switch 56, an interlocking switch 81 shown in FIG. 7 may be provided to close the AC circuit 53 and the DC power supply circuit 54 at the same time.

〔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. When using the vacuum cleaner body attached to the support, the vacuum cleaner body can be easily attached by simply fitting and connecting the suction port to the extension tube and locking the locking part to the locking body. Since it is directly connected to the extension pipe, it is easy to connect and also serves as the mounting structure for the vacuum cleaner body, simplifying the structure. It can charge rechargeable batteries, and there is no need to set aside time for charging, improving charging efficiency.

[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. The figure is a vertical cross-sectional view showing the vacuum cleaner itself in use, Figure 5 is an enlarged vertical cross-sectional view of the second switch button, Figure 6 is a circuit diagram showing the electric circuit of the vacuum cleaner, and Figure 7 is its It is a circuit diagram showing a modification. 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, 61... Rechargeable battery switch, 62... Selector switch, 71...
AC power supply, 72...AC power supply circuit, 73...Charging 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 inside, and a fitting that removably engages 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 support body is fitted and connected to the extension pipe, and the engaging body is detachably engaged with the engagement part so that the vacuum cleaner main body can be detachably attached to the engagement part of the support body, An AC power supply circuit and a charging circuit that operates with AC power from the AC power supply circuit are provided in the vacuum cleaner body, and an AC circuit that connects the AC power supply circuit and the electric blower is provided in the vacuum cleaner body, and is connected to the charging circuit. 1. A vacuum cleaner comprising: a rechargeable battery that is charged by the electric blower; and the rechargeable battery is connected to the electric blower via a switch. 2. The vacuum cleaner according to claim 1, wherein the switching switch is turned off when the cleaning body is fitted into the fitting part of the support and turned on when the cleaning body is removed from the fitting part.