JP6715065B2 - Vacuum cleaner - Google Patents

Description

The present invention relates to a vacuum cleaner.

Background Art As a background art of the present invention, in an electric vacuum cleaner including a main body having an electric blower and a dust collecting part built therein, a vacuum cleaner main body, a hose for conveying dust to the cleaner main body, and a member such as an extension pipe are made of aluminum. It is known that by applying a treatment for forming a coating in which particles or pearl particles are dispersed, scratches are less likely to occur on the surface, dirt is less likely to adhere, and the design is improved (for example, , Patent Document 1).

JP, 10-33417, A

However, in such a conventional electric vacuum cleaner, when such a coating is formed over the front surface and the back surface of the member and has conductivity, if the coating touches the built-in charging component, it may cause an electric leakage or a short circuit. There is a problem that such inconvenience occurs.

The present invention has been made in consideration of such circumstances, and provides an electric vacuum cleaner that can be safely used even when a coating formed on a member has conductivity.

The present invention relates to an electric blower for sucking dust together with air and a cleaner main body having a dust collection chamber for storing the sucked dust, a suction port body having a suction port for sucking air containing dust, and a cleaner main body. And a connection pipe connecting the suction port body to each other, wherein the connection pipe includes a ventilation pipe provided between the cleaner body and the first and second connection portions respectively connected to the suction port body, A power receiving electrode that is provided in each of the first and second connection portions and that receives power output from the cleaner body, and a power feeding electrode that supplies power to the suction port body, and an insulating coating that connects the power receiving electrode and the power feeding electrode A wire, and a cover member that is mounted along the longitudinal direction of the ventilation pipe and covers the power receiving and feeding electrodes and the insulating coated wire, and the cover member includes an electrically insulating base material and a metal coating laminated on the base material. And a cover member and a power receiving electrode, and a cover member and a power feeding electrode are electrically insulated from each other.

According to the present invention, even if the connection pipe connecting the cleaner body and the suction port body is covered with the metal coating, the insulating property between the charged components and the metal coating inside is guaranteed, so that the designability can be safely increased. You can

It is an appearance perspective view showing a 1st embodiment of the vacuum cleaner of this invention. It is a principal part disassembled perspective view of the electric vacuum cleaner shown in FIG. It is an internal structure explanatory view of the electric vacuum cleaner shown in FIG. It is a top view which shows the internal structure of the suction inlet of the electric vacuum cleaner shown in FIG. It is a side view which shows the internal structure of the suction inlet shown in FIG. It is a perspective view and a side view which show the principal part of the connection pipe shown in FIG. It is a perspective view which shows the 1st connection part of the connection pipe shown in FIG. FIG. 8 is an exploded perspective view of the first connecting portion shown in FIG. 7. It is a perspective view which shows the 2nd connection part of the connection pipe shown in FIG. It is a disassembled perspective view of the 2nd connection part shown in FIG. It is a longitudinal cross-sectional view of the 1st connection part shown in FIG. It is a longitudinal cross-sectional view of the 2nd connection part shown in FIG. It is a perspective view of the main body side connection part shown in FIG. It is a disassembled perspective view of the main body side connection part shown in FIG. FIG. 3 is a perspective view of a suction port body side connection portion shown in FIG. 2. FIG. 16 is an exploded perspective view of the suction port body side connection portion shown in FIG. 15.

An electric vacuum cleaner according to the present invention includes an electric blower for sucking dust together with air, a cleaner main body having a dust collecting chamber for storing the sucked dust, and a suction port body having a suction port for sucking air containing the dust. A connecting pipe connecting the cleaner body and the suction port body, the connection pipe being provided between the first and second connection parts respectively connected to the cleaner body and the suction port body. The pipe, the power receiving electrode for receiving power output from the cleaner body and the power feeding electrode for supplying power to the suction port, which are respectively provided in the first and second connection parts, and between the power receiving and power feeding electrodes. An insulating coated wire to be connected, and a cover member that is mounted along the longitudinal direction of the ventilation pipe and covers the power receiving and feeding electrodes and the insulating coated wire, and the cover member is laminated on the electrically insulating base material and the base material. And a cover member and a power receiving electrode, and a cover member and a power feeding electrode are electrically insulated from each other.

An insulating member may be provided between the cover member and the power receiving electrode and between the cover member and the power feeding electrode, respectively.
In the cover member, it is preferable that the metal coating is removed and the insulating base material is exposed at a portion contacting the power receiving electrode and the power feeding electrode.

One of the cover member and the power receiving electrode and the one of the cover member and the power feeding electrode may be insulated by an insulating member, and the other may be insulated by exposing an insulating base material at a portion where they are in contact with each other.
The power source may include a battery that outputs electric power, and the suction port may include an electric motor for a rotating brush or a self-propelled roller that is driven by the electric power output from the power source.

Hereinafter, the present invention will be described in detail with reference to the embodiments shown in the drawings. In each of the drawings, elements having the same configuration are designated by the same reference numerals and the description thereof is omitted.

(First embodiment)
Overall structure of electric vacuum cleaner FIG. 1 is an external perspective view showing a first embodiment of the electric vacuum cleaner of the present invention, and FIGS. 2 and 3 are exploded perspective views and internal structure explanations of essential parts of the electric vacuum cleaner shown in FIG. 1, respectively. It is a figure.

As shown in FIGS. 1 and 2, the electric vacuum cleaner 1 includes a cleaner body 2, a suction port body 3, and a connecting pipe (extension pipe) 4 that connects the cleaner body 2 to the suction port body 3. ..

The cleaner body 2 releasably receives a handle 5 that an operator holds with a hand, an operating portion 6 provided on the handle 5 and having a start/stop switch, and a first connecting portion 51 at the base end of the connecting pipe 4 in a detachable manner. The main body side connection part 7 to connect is provided.

The distal end of the connecting pipe 4 is provided with a second connecting portion 52 that detachably receives and connects the suction port side connecting portion 8.
Further, the suction port body 3 includes a joint portion 10 capable of swinging the suction port body side connection portion 8 with respect to the suction port body 3 within an angle range of about 90 degrees.

As shown in FIG. 3, the cleaner body 2 includes a dust collection chamber 11 that is detachably installed, a dust collection filter 12 provided on the downstream side of the dust collection chamber 11, an electric blower 13, and a dust collection filter 12. The ventilation passage 14 connecting the electric blower 13 and the exhaust passage 37 provided downstream of the electric blower 13 and the passage 39 connecting the main body side connecting portion 7 and the dust collecting chamber 11 are built in.

A known cyclone type chamber can be preferably used for the dust collecting chamber 11. Further, as shown in FIG. 3, a battery 17 to be described later is replaceably mounted on the cleaner body 2.

The electric vacuum cleaner 1 shown in FIGS. 1 and 3 shows a state of standing on the floor surface F. That is, the angle formed between the suction port body 3 and the connecting pipe 4 is slightly smaller than about 90 degrees, and the center of gravity of the cleaner body 2 is in a state of being balanced so as to make the electric vacuum cleaner 1 stand on the floor surface F. ..

Structure of Suction Portion FIG. 4 is a plan view showing the internal structure of the suction port body of the electric vacuum cleaner shown in FIG. 1, and FIG. 5 is a side view showing the internal structure of the suction port body shown in FIG.

As shown in FIGS. 4 and 5, the suction port body 3 includes a top plate 24, a bottom plate 25, and side plates 26 provided along the outer periphery between them. The suction port body 3 includes a rotary brush 18 provided at the suction port 15 of the bottom plate 25 and having both ends of a rotary shaft rotatably supported by bearings 19, and a first electric motor 21 installed on the bottom plate 25 and driving the rotary brush 18. A pulley 20 provided at one end (left end) of the rotary shaft of the rotary brush 18, a pulley 22 provided at the output shaft of the first electric motor 21, and a timing belt 23 connecting the pulleys 20 and 22 are provided.

A pair of rear wheels 36 that movably support the suction port body 3 is provided behind the bottom plate 25, and a part of the rear wheel 36 is exposed downward from the bottom plate 25 at the center of the floor plate F (FIG. 3). A self-propelled roller 27 that is rotatably supported so as to come into contact with a second electric motor 28 that is installed on the bottom plate 25 to drive the self-propelled roller 27; Further, a pulley 29, a pulley 30 provided on the output shaft of the second electric motor 28, and a timing belt 31 connecting the pulleys 29, 30 are provided.

In this embodiment, inside the suction port body 3 (FIGS. 4 and 5), the suction port 15 and the suction port body side connecting portion 8 are connected by the suction flow channel 16, and the suction flow channel 16 is self-propelled. The roller 27 and the second electric motor 28 are provided so as to linearly pass between the top plate 24 and the top plate 24 when viewed from above.

And its mounting and detaching the Figure 6 structure of the connection pipe perspective view and a side view showing a main portion of the connecting tube shown in FIG. 1, FIG. 7 is a perspective view showing a first connecting portion of the connecting tube shown in FIG. 2, FIG. 8 7 is an exploded perspective view, FIG. 9 is a perspective view showing a second connecting portion of the connecting pipe shown in FIG. 2, FIG. 10 is an exploded perspective view of FIG. 9, FIG. 11 is a vertical sectional view of FIG. 7, and FIG. 9 is a vertical sectional view of FIG.

13 is a perspective view of the main body side connection portion shown in FIG. 2, FIG. 14 is an exploded perspective view of FIG. 13, FIG. 15 is a perspective view of the suction port side connection portion shown in FIG. 2, and FIG. 16 is an exploded perspective view of FIG. Is.

The connecting pipe 4 is formed by covering the cover member 53 shown in FIG. 6(a) on the ventilation pipe 54 shown in FIG. 6(b), both of which are molded using ABS resin. is there.

The front and back surfaces of the cover member 53 are covered with aluminum by double-sided vapor deposition. In this embodiment, the cover member 53 is provided with silver luster to enhance the design of the electric vacuum cleaner 1.

As shown in FIGS. 7, 8, and 11, the first connecting portion 51 of the connecting pipe 4 includes a tapered portion 55 at the tip of the ventilation pipe 54, and a pair of power receiving electrode holding portions 56 and a cover mounting portion. The screw hole portion 57, the pipe stopper 58, and the clamp lever locking recess 59 are provided.

Then, the holding portions 60b of the pair of power receiving electrodes 60 each including the insertion plug portion 60a and the holding portion 60b are attached to the power receiving electrode holding portion 56. An electrode insulating cover 61 made of ABS resin is placed on top of it to cover the holding portion 60b.

The cover member 53 is attached to the ventilation pipe 54 so that the insulating cover 61 presses the holding portion 60b of the power receiving electrode 60 against the power receiving electrode holding portion 56. Then, a mounting screw is inserted from the cover mounting screw through hole 62 at the end of the cover member 53 and is tightened in the screw hole portion 57.

Thereby, the cover member 53 is fixed to the ventilation pipe 54 at the first connecting portion 51, and the power receiving electrode 60 is securely fixed to the power receiving electrode holding portion 56. The insulating coating wire 63 connected to the second connecting portion 52 (FIG. 2) is soldered to the holding portion 60b of each power receiving electrode 60.

The electrode insulating cover 61 covers the holding portion 60b of the power receiving electrode 60 including the soldered portion of the insulating coated wire 63 to prevent contact with the aluminum coating on the inner surface of the cover member 53.

Further, the second connecting portion 52 of the connecting pipe 4 is provided with a power receiving electrode penetrating support portion 64 at the tip of the ventilation pipe 54 as shown in FIGS. 9, 10, and 12, and a pair of power feeding electrode holding portions 65, A screw hole portion 66 for attaching the cover, a clamp lever protruding window 67, and a detent locking groove 68 (FIG. 12) are provided.

Then, the pair of socket-shaped power feeding electrodes 69 are attached to the power feeding electrode holding portions 65, respectively.

An insulating sheet 71 made of ABS resin is placed from above and covers the power supply electrode 69. The cover member 53 is attached to the ventilation pipe 54 so that the insulating sheet 71 presses the power feeding electrode 69 against the power feeding electrode holding portion 65.

A mounting screw is inserted from the cover mounting screw through hole 72 in the upper portion of the cover member 53 and is tightened into the screw hole portion 66 through the through hole 73 of the insulating sheet 71, whereby the cover member 53 is fixed to the ventilation pipe 54. At the same time, the insulating sheet 71 and the feeding electrode 69 are securely fixed to the feeding electrode holding portion 65.

An insulating coated wire 63 connected to the first connecting portion 51 (FIG. 2) is soldered to each power feeding electrode 69. The insulating sheet 71 covers the power supply electrode 69 including the soldered portion to prevent contact with the aluminum coating on the inner surface of the cover member 53.

In the second connecting portion 52, a clamp lever 74 is provided between the pair of power supply electrodes 69 in the ventilation pipe 54, and is rotatably supported by the clamp lever support portion 76 by the support shaft 75.

Then, in the clamp lever 74, the clamp button 78 at one end of the clamp lever 74 is exposed from the clamp button exposure port 79 formed in the cover member 53, and the clamp lever locking piece 80 at the other end of the clamp lever 74 is clamp lever. A coil spring 77 is biased so as to project from the projecting window 67.

Further, as shown in FIGS. 13 and 14, the main body side connecting portion 7 has substantially the same structure as the second connecting portion 52 shown in FIGS. 9 and 10.

Therefore, when connecting the connecting pipe 4 to the cleaner body 2, if the first connecting portion 51 shown in FIGS. 7 and 8 is inserted into the main body side connecting portion 7, the taper portion 55 of the first connecting portion 51 and the power receiving electrode 60. Are received by the ventilation pipe 81 of the main body side connection portion 7 and the power supply electrode 69, respectively, and the pipe rotation stopper 58 (FIG. 7) of the first connection portion 51 is fixed by the rotation stopper locking groove 68 (FIG. 7) of the main body side connection portion 7. 12).

At the same time, the clamp lever locking piece 80 of the clamp lever 74 (FIG. 14) is locked in the clamp lever locking recess 59 (FIG. 7) of the first connecting portion 51, and the clamp button 78 (FIG. 13) is locked at the clamp button exposure port 79. Exposed from. Thereby, the first connecting portion 51 is securely connected to the main body side connecting portion 7.

Further, when the connecting tube 4 is removed from the cleaner body 2, when the clamp button 78 (FIG. 13) of the main body side connecting portion 7 is pressed, the clamp lever locking recess 59 of the first connecting portion 51 (FIG. 7) is pushed to the clamp lever. Since the locking piece 80 is disengaged, it can be easily removed by separating them.

Further, as shown in FIGS. 15 and 16, the suction port body side connecting portion 8 has a structure substantially equivalent to the first connecting portion 51 shown in FIGS. 7 and 8.

Therefore, when the connection pipe 4 is connected to the suction port body 3, if the second connection portion 52 shown in FIGS. 9 and 10 is inserted into the suction port body side connection portion 8, the tapered portion 55 of the suction port body side connection portion 8 and the power receiving unit The electrode 60 is received by the ventilation pipe 54 of the second connecting portion 52 and the power feeding electrode 69, respectively, and the pipe detent 58 of the suction port body side connecting portion 8 (FIG. 15) is the detent locking groove of the second connecting portion 52. It is locked to 68.

At the same time, the clamp lever locking piece 80 of the clamp lever 74 is locked in the clamp lever locking recess 59 of the suction port body side connecting portion 8, and the clamp button 78 is exposed from the clamp button exposure port 79. As a result, the second connecting portion 52 is reliably connected to the suction port body side connecting portion 8.

Further, when the connection tube 4 is removed from the suction port body 3, if the clamp button 78 of the second connection portion 52 is pressed, the clamp lever locking piece 80 is disengaged from the clamp lever locking recess 59 of the suction port body side connection portion 8. , Can be easily removed by pulling them apart.

Incidentally, since the main body side connecting portion 7 and the suction inlet side connecting portion 8 have the above-described structure, in FIG. 2, the suction inlet body side connecting portion 8 is connected to the main body side connecting portion 7 of the cleaner main body 2 with the connecting pipe 4 removed. By attaching the, a handy-type cleaner in which the suction port body 3 is directly connected to the cleaner body 2 can be realized.

Operation of Vacuum Cleaner The operation of the vacuum cleaner 1 having such a configuration will be described.
First, the operator grips the handle 5 of the electric vacuum cleaner 1 which is self-supporting on the floor F from the rear of the suction port body 3 as shown in FIGS. 1 and 3, and pulls the cleaner body 2 toward you to pull the suction port body. The angle formed by 3 and the connecting pipe 4 is set to a desired angle larger than about 90 degrees.

Next, when the start switch of the operation unit 6 is operated, electric power is supplied from the battery 17 (FIG. 3) to the electric blower 13, the first electric motor 21, and the second electric motor 28 via the insulating coated wire 63, and these are driven. ..

Thereby, the rotating brush 18 and the self-propelled roller 27 are driven so that the suction port body 3 is self-propelled on the floor surface F, and when the worker holds the cleaner main body 1 and follows the suction port body 3, the rotary brush is rotated. The dust on the floor is collected by the rotation of 18, and is sucked into the dust collecting chamber 11 from the suction port 15 through the suction flow path 16, the connecting pipe 4 and the flow path 39 together with the air as shown in FIG.

The dust-containing air sucked into the dust collecting chamber 11 is filtered by the dust collecting filter 12, and only clean air is discharged from the electric blower 13 through the flow passage 14 to the outside through the exhaust flow passage 37.

On the other hand, the dust collected by the dust collecting filter 12 falls due to gravity and is accumulated at the bottom of the dust collecting chamber 11. When the amount of dust collected in the dust collection chamber 11 reaches the maximum allowable amount, the operator can remove the dust collection chamber 11 from the cleaner body 2 and discard the accumulated dust. It should be noted that fine dust attached to the dust collection filter 12 without dropping from the dust collection filter 12 is removed from the dust collection filter 12 by washing or the like.

When finishing the cleaning work, the operator operates the stop switch of the operation unit 6. Thereby, the supply of electric power from the battery 17 to the electric blower 13, the first electric motor 21, and the second electric motor 28 is stopped, and the self-propelled operation of the suction inlet body 3, the rotating operation of the rotary brush 18, and the suction operation of the suction inlet 15. Stops. Then, the worker returns the electric vacuum cleaner 1 to the posture shown in FIGS. 1 and 3 and makes the electric vacuum cleaner 1 stand on the bottom surface F again to finish the work.

(Second embodiment)
In this embodiment, the electrode insulating cover 61 and the cover member 53 of the connection pipe 4 of the first embodiment are integrally molded using ABS resin. That is, the electrode insulating cover 61 is eliminated. The surface of the integrally formed electrode insulating cover is treated by masking during vapor deposition so that the aluminum coating is not formed. In this embodiment, the surface of the electrode insulating cover integrally formed with the cover member 53 has an electrical insulating property, and therefore has the same function and effect as the electrode insulating cover 61 of the first embodiment.

(Third Embodiment)
In this embodiment, the insulating sheet 71 and the cover member 53 of the connection pipe 4 of the first embodiment are integrally molded using ABS resin. That is, the insulating sheet 71 is eliminated. The surface of the integrally molded insulating sheet is treated so that the aluminum coating is not formed by masking during vapor deposition. In this embodiment, since the surface of the insulating sheet integrally molded with the cover member 53 has electrical insulation, it has the same function and effect as the insulating sheet 71 of the first embodiment.

DESCRIPTION OF SYMBOLS 1 Vacuum cleaner, 2 Vacuum cleaner main body, 3 Suction mouth body, 4 Connection pipe, 5 Handle, 6 Operation part, 7 Main body side connection part, 8 Suction mouth body side connection part, 10 Joint part, 11 Dust collection chamber, 12 collection Dust filter, 13 current blower, 14 ventilation path, 15 suction port, 16 suction flow path, 17 battery, 18 rotating brush, 19 bearing, 20 pulley, 21 first electric motor, 22 pulley, 23 timing belt, 24 top plate, 25 Bottom plate, 26 side plate, 27 self-propelled roller, 28 second electric motor, 29 pulley, 30 pulley, 31 timing belt, 36 rear wheel, 37 exhaust passage, 39 passage, C, D suction passage, F floor surface, 51 1st connection part, 52 2nd connection part, 53 cover member, 54 ventilation pipe, 55 taper part, 56 power receiving electrode holding part, 57 screw hole part, 58 pipe rotation stop, 59 clamp lever locking recessed part, 60 power receiving electrode, 61 electrode insulating cover, 62 cover mounting screw through hole, 63 insulating covered wire, 64 power receiving electrode through supporting part, 65 power feeding electrode holding part, 66 screw hole part, 67 clamp lever protruding window, 68 rotation stop locking groove, 69 power feeding Electrode, 71 Insulation sheet, 72 Cover mounting screw through hole, 73 Through hole, 74 Clamp lever, 75 Support shaft, 76 Clamp lever support part, 77 Coil spring, 78 Clamp button, 79 Clamp button exposure port, 80 Clamp lever locking Piece

Claims (5)

A vacuum cleaner body having a built-in electric blower for sucking dust together with air and a dust collection chamber for storing the sucked dust, a suction port body having a suction port for sucking air containing dust, a cleaner body and a suction port body A connecting pipe for connecting to the cleaner body, the connecting pipe being provided between a first main body and a second connecting portion connected to the suction body, and a first pipe and a second pipe. A power receiving electrode provided for each of the connection portions for receiving the power output from the cleaner body, and a power feeding electrode for supplying power to the suction port body, an insulating coated wire for connecting the power receiving and the power feeding electrode, and ventilation. A cover member that is mounted along the longitudinal direction of the pipe and covers the power receiving and feeding electrodes and the insulating covered wire, and the cover member is composed of an electrically insulating base material and a metal coating laminated on the base material. the member and the receiving electrode are electrically insulated in a state of overlapping each other, the electric vacuum cleaner that is electrically insulated in a state of overlapping each other the cover member and the feeding electrode. The vacuum cleaner according to claim 1, wherein an insulating member is provided between the cover member and the power receiving electrode and between the cover member and the power feeding electrode, respectively. The electric vacuum cleaner according to claim 1, wherein the cover member has a metal coating film removed at a portion in contact with the power receiving electrode and the power feeding electrode to expose the insulating base material. One of the cover member and the power receiving electrode and the one of the cover member and the power feeding electrode are insulated by an insulating member, and the other is insulated by exposing an insulating base material at a portion where they contact each other. The electric vacuum cleaner according to 1. The vacuum cleaner body includes a battery that outputs electric power, and the suction port body includes an electric motor for a rotating brush or a self-propelled roller that is driven by electric power output from the battery. Vacuum cleaner as described in.

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