KR20010078005A - Electric cleaner - Google Patents

Abstract

PURPOSE: To provide an exhaust-circulation-type electric vacuum cleaner to circulate exhaust from a vacuum cleaner main body to a suction device capable of making a hose lightweight and improving insulation. CONSTITUTION: The exhaust-circulation-type electric vacuum cleaner to circulate exhaust from a vacuum cleaner main body to a suction device is provided with the vacuum cleaner main body, a hose made of an outer hose and inner hose arranged in the outer hose, a hose joint pipe, and a hand pipe. The electric vacuum cleaner is further provided with an electric supply line 7 of which at least a part is arranged between the outer hose and inner hose.

Description

Vacuum cleaner {ELECTRIC CLEANER}

The present invention relates to an electric vacuum cleaner. More specifically, the present invention relates to an electric vacuum cleaner capable of achieving a reduction in the weight of the hose and an improvement in insulation in an exhaust reflux type vacuum cleaner that returns the exhaust from the vacuum cleaner body to the suction port.

Conventionally used electric vacuum cleaners draw outside air together with garbage and dust from a suction port, collect dust and dust in a dust collection bag inside the cleaner body, and then remove the dust from the back of the cleaner body. Air is exhausted to the outside. Exhaust from the cleaner body is unpleasant for people around, and various types of electric cleaners have been proposed to eliminate such exhaust.

For example, there is an exhaust reflux type vacuum cleaner that returns the exhaust from the cleaner body to the intake port. In this exhaust reflux type vacuum cleaner, a hose between the cleaner body and the intake port, a hose connecting pipe connected to the hose, and the like, Since it passes the exhaust at the same time, it has a double structure.

In addition, a handle pipe having a handle controller is rotatably connected to the hose connecting pipe.

In addition, in order to electrically connect between the handle controller of the handle pipe and the cleaner body, an electric supply line is buried in the film on the outer circumferential surface of the outer hose.

In the exhaust reflux type vacuum cleaner as described above, since the electric supply line is buried inside the film of the external hose, it is necessary to increase the thickness of the external hose, and it is difficult to achieve the weight reduction.

In addition, when the external hose is deteriorated or damaged due to long-term use of the vacuum cleaner or the like, the electric supply line may be exposed to the outside and the insulation may be deteriorated.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and an object of the present invention is to provide an electric vacuum cleaner capable of achieving a lightweight hose and improved insulation in an exhaust reflux type vacuum cleaner that returns exhaust gas from a vacuum cleaner body to a suction port. .

1 is a partially cutaway front view showing an embodiment of the vacuum cleaner of the present invention.

2 is an exploded perspective view of the connecting pipe of FIG. 1.

3 is an exploded perspective view of the handle pipe of FIG. 1.

4 is a cross-sectional explanatory view of a connection portion of the hose connecting pipe and the handle pipe of FIG. 1.

5 is an explanatory cross-sectional view of a portion connected to the cleaner body of the hose of FIG. 1.

6 is an exploded perspective view of the hose connecting pipe in the case where the electric supply line is installed on the outer circumferential surface of the external connecting pipe as another embodiment of the vacuum cleaner of the present invention.

FIG. 7 is an explanatory cross-sectional view of the vicinity of the hose connecting pipe of FIG. 6. FIG.

8 is an exploded perspective view of a part connected to the cleaner body of the hose of FIG. 6.

Fig. 9 is an explanatory cross-sectional view of the vicinity of a hose connecting pipe when a holder for holding an electric supply line is provided as another embodiment of the vacuum cleaner of the present invention.

10 is a front view of the holder of FIG. 9.

Fig. 11 is a schematic sectional explanatory diagram showing arrangement of signal lines and power lines as still another embodiment of the vacuum cleaner of the present invention.

12 is a sectional view of principal parts showing the arrangement of a signal line and a power line as still another embodiment of the vacuum cleaner of the present invention.

FIG. 13 is a sectional view of principal parts showing the arrangement of a signal line and a power line as still another embodiment of the vacuum cleaner of the present invention. FIG.

14 is a sectional view of principal parts showing the arrangement of the signal line and the power line as still another embodiment of the vacuum cleaner of the present invention.

15 is a cross-sectional explanatory view showing an example of being disposed along the protruding portion of the inner hose as another embodiment of the vacuum cleaner of the present invention.

♣ Explanation of symbols for main part of drawing ♣

2: hose

3: hose connecting pipe

4: handle pipe

7: electric supply line

The vacuum cleaner of the present invention is an exhaust reflux type vacuum cleaner for refluxing exhaust from the cleaner body to a suction port,

(a) the cleaner body,

(b) a hose formed by an outer hose having one end connected to the cleaner body and an inner hose installed in the outer hose,

(c) a hose connection pipe formed by an external connection pipe fixed to the other end of the external hose and an internal connection pipe installed in the external connection pipe and fixed to the other end of the internal hose,

(d) is an electric cleaner rotatably connected to the hose connecting pipe and provided with a handle pipe having a handle controller,

(e) Characterized in that it is further provided with an electrical supply line provided at least a part between the outer hose and the inner hose.

Preferably, the electricity supply line is provided between the external connection pipe and the internal connection pipe.

It is preferable that the electricity supply part connected to the said electricity supply line is provided in the outer peripheral surface of the said external connection pipe.

It is preferable that a terminal connected to the handle controller and in contact with the electric supply part is provided inside the handle pipe.

The electrical supply unit is made of an electrical supply ring fitted to the outer peripheral surface of the external connection pipe,

It is preferable that one end of the electric supply ring protrudes in the inner circumferential direction of the external connection pipe and is connected to the electric supply line.

The electricity supply line is made of a power line and / or a signal line,

At least one of the power line or the signal line is preferably provided between the outer hose and the inner hose.

EMBODIMENT OF THE INVENTION Hereinafter, the vacuum cleaner of this invention is demonstrated in detail, referring drawings. 1 is a partial cutaway view showing an embodiment of the vacuum cleaner of the present invention, FIG. 2 is an exploded perspective view of the connecting pipe of FIG. 1, FIG. 3 is an exploded perspective view of the handle pipe of FIG. 1, and FIG. 4 is a hose of FIG. 1. Cross-sectional explanatory drawing of the connection part of a connection pipe and a handle pipe, FIG. 5 is a cross-sectional explanatory view of the part connected to the cleaner main body of the hose of FIG. 1, FIG. 6 is another embodiment of the vacuum cleaner of this invention. Fig. 7 is an exploded perspective view of the vicinity of the hose connecting pipe when installed on the outer circumferential surface of the connecting pipe, FIG. FIG. 9 is a cross-sectional explanatory view of the vicinity of a hose connecting pipe when the holder for holding an electric supply line is shown as another embodiment of the vacuum cleaner of the present invention. FIG. 10 is a front view of the holder of FIG. The present invention As another embodiment of the vacuum cleaner, a main cross-sectional explanatory diagram showing the arrangement of the signal line and the power line and FIG. 15 shows an example in which the electric supply line is arranged along the protruding portion of the inner hose as another embodiment of the vacuum cleaner of the present invention. It is cross-sectional explanatory drawing.

In the vacuum cleaner shown in FIGS. 1 to 4, the hose 2, the hose connecting pipe 3, the handle pipe 4, the extension pipe 5, and the suction port 6 are sequentially connected to the cleaner body 1. have.

The cleaner main body 1 can move the floor using the wheel 1a, and the electric blower, the dust collection pack, etc. are accommodated in the cleaner main body 1 inside.

The hose 2 is a double tube formed by the outer hose 2a and the inner hose 2b provided in the outer hose 2a. One end of the outer hose 2a and the inner hose 2b is connected to the inlet port 1b of the cleaner body 1.

The inside of this inner hose 2b is taken in by the cleaner main body 1, and the air exhausted and returned from the cleaner main body 1 flows into the space part between the outer hose 2a and the inner hose 2b, As a result, the rotary brush inside the suction port 6 is rotated.

The hose connecting pipe 3 is a double pipe formed by the external connecting pipe 3a and the internal connecting pipe 3b installed inside the external connecting pipe 3a, as shown in Figs. The other end of the said external hose 2a and the internal hose 2b is respectively connected to the bottom end of the external connection pipe 3a and the internal connection pipe 3b.

2 and 4, packings 13 and 14 are provided at the leading ends of the retaining ring 16 and the inner connecting pipe 3b connected to the outer connecting pipe 3a, respectively.

The handle pipe is a pipe whose cross section rotatably connected to the hose connecting pipe 3 has a substantially "대략" shape, as shown in FIGS. 3 to 4, and the external connecting pipe 3a and the internal connecting pipe. It consists of the outer handle pipe 4a and the inner handle pipe 4b respectively connected to 3b.

In addition, a handle 8 extends upwardly on the outer handle pipe 4a, and a handle controller 9 for controlling the output of the electric blower is provided on the upper surface side of the handle 8.

In the present embodiment, since the electric supply line 7 is provided between the outer hose 2a and the inner hose 2b, the thickness of the outer hose as compared to that of embedding the electric supply line in the coating on the outer circumferential surface of the outer hose like a conventional hose. The thickness of the hose can be reduced, and as a result, the weight and cost of the hose can be achieved. Moreover, the improvement of operability by weight reduction of a hose can be achieved.

In addition, since the electric supply line 7 is insulated by the external hose 2a with respect to the outside, and with the internal hose 2b with respect to the garbage which passes through the inside of the hose, the insulation is considerably high. That is, the electric supply line 7 is insulated (double insulation) from not only the insulation film which is originally provided, but also the garbage from the outside and the inside of a hose by a hose.

Moreover, the electricity supply line 7 is provided between the external connection pipe 3a and the internal connection pipe 3b, as shown in FIGS. 2 and 4. Therefore, the outer diameter of the external connection pipe 3a can be made small compared with the case where the electric supply line 7 is provided outside the external connection pipe 3a shown in FIGS. In addition, since the electric supply line 7 at the time of connecting the external hose 2a to the outer surface of the external connection pipe 3a is also not required to be tightly connected at the same time, the assembly is very easy.

In addition, the electric supply line 7 of this embodiment passes between the outer hose 2a and the inner hose 2b as shown in FIGS. 2-4, and is connected to the cleaner main body 1 shown in FIG. It is provided up to the hose connecting pipe 12, and is electrically connected to the said electric cleaning main body 1 via the connection terminal (not shown) of the hose connecting pipe 12. As shown in FIG.

In addition, as shown in Fig. 2 and 4, the outer circumferential surface of the hose connecting pipe 3 is provided so that the electrical supply ring 10 is in direct contact. The electric supply line 7 of the hose 2 is connected to the electric supply ring 10. The electric supply ring 10 is made of two substantially C-shaped rings for inputting and outputting signals, and is made of a conductive material such as phosphor bronze, which has good electrical conductivity and good sliding property.

Two electrical supply rings 10 are held by the electrical supply ring retaining plate 15 inward as shown in FIGS. 2 and 4. The electric supply ring 10 and the electric supply ring holding plate 15 are provided on the outer circumferential surface of the front end side of the external connection pipe 3a and are held by the retaining ring 16. The retaining ring 16 is engaged with the inner circumferential surface of the outer connecting pipe 3a and is fixed by the release preventing ring 17 (specifically, the teeth 17a).

2 and 4, the end portion 10a of the electric supply ring 10 protrudes in the inner circumferential direction of the external connection pipe 3a. The end portion 10a projects through the slit 18 of the external connection pipe 3a and the slit 19 of the electrical supply ring retaining plate 15 to the inside of the external connection pipe 3a. An end portion 10a and the electric supply line 7 are electrically connected to the inside of the external connection pipe 3a.

On the other hand, as the sliding contact body with respect to the electric supply ring 10, the sliding contact piece 11 is provided so that it may protrude inside the outer pipe 4a of the handle pipe 4, as shown in FIGS. The sliding contact piece 11 protrudes from the inner surface of the cover 31 detachably attached to the outer peripheral surface of the handle pipe 4. In addition, a protrusion 31a for preventing the hose connecting pipe 3 from being detached is provided on the inner surface of the cover 31. The sliding contact piece 11 is electrically connected to the handle controller 9 together with the lead wire 32. The sliding contact piece 11 is always made of a leaf spring-like conductive material and is pressed at all times so as to be in sliding contact with the outer circumferential surface of the electric supply ring 10.

As another embodiment of the present invention, in the vacuum cleaner shown in Figs. 6 to 7, an outer hose protruding from the outer circumferential surface of the pipe 3a in order to engage the electric supply line 7 with the outer circumferential surface of the external connecting pipe 3a. The recessed part 20a is formed in the fitting rib 20. By engaging the electric supply line 7 with this recessed part 20a, the electric supply line 7 can be fixed to the outer peripheral surface of the external connection pipe 3a easily and reliably. Similarly, as shown in FIG. 8, also about the hose connecting pipe 12 toward the cleaner main body 1, the recessed part 21a is formed in the outer hose fitting rib 21 of the outer peripheral surface of the external connecting pipe 12a. . Therefore, by engaging the electric supply line 7 to this recessed part 21a, the electric supply line 7 can be hooked up to the outer peripheral surface of the external connection pipe 12a easily and reliably. 6 to 8, on the outer circumferential surfaces of the external connection pipes 3a and 12a, an adhesive for bonding the external hose 2a and the like can be used to prevent leakage near the electric supply line 7.

Further, as still another embodiment of the present invention, as shown in Figs. 9 to 10, the holder 22 is provided to fix the electric supply line 7 provided between the outer hose 2a and the inner hose 2b. You may also

The holder 22 is provided with a substantially C-shaped leg portion 23 fitted to the recessed portion of the inner circumferential surface of the inner hose 2b, and protrudes on the outer circumference of the leg portion 23 to hang the electricity supply line 7. It consists of a locking portion 24 to be fitted. The leg part 23 has a space | interval slightly smaller than the external shape of the internal hose 2a so that the internal hose 2b can be clamped inside. The locking portion 24 is formed with a groove 24a at least the width of the upper end of which is smaller than the outer diameter of the electric supply line 7. A plurality of holders 22 are attached to the outer circumferential surface of the inner hose 2a, and the electric supply lines 7 are engaged with the engaging portions 24 of these holders 22, thereby providing electrical power by twisting and bending the hose 2a. Twisting and entanglement of the supply line 7 do not occur and there is no fear of disconnection.

As the material of the holder 22, any material can be used as long as it is a deformable elastic material. However, it is preferable to use a metal material or a resin material such as polypropylene which is light and has high chemical resistance.

In the above embodiment, the entire electrical supply line 7 has been described by way of example provided between the outer hose 2a and the inner hose 2b, but the present invention is not limited thereto. As another embodiment, as shown in Figs. 11 to 13, when the electric supply line 25 is composed of the power supply line 26 and / or the signal line 27, at least one of the power supply line 26 or the signal line 27 is provided. If one side is provided between the outer hose 2a and the inner hose 2b, weight reduction of the hose and double insulation of the electric supply line 25 can be achieved.

Specifically, as shown in FIG. 11, when the power line 26 is provided on the inner circumferential surface of the outer hose 2a and the signal line 27 is provided on the outer circumferential surface, the power line 26 is covered by the outer hose 2a. Because it is protected by a loss, it is possible to provide a safer hose. In addition, since the power supply line 26 and the signal line 27 are provided only in the external hose 2a, the structure is simple.

In addition, as shown in FIG. 12, when the power supply line 26 is provided on the outer circumferential surface of the inner hose 2b and the signal line 27 is provided on the outer circumferential surface of the outer hose 2a, the power supply is maintained even if the outer hose 2a is damaged. There is no influence on the line 26, and since the power supply line 26 is barely exposed to the outside, it is safer.

Furthermore, as shown in FIG. 13, when the power line 26 is provided on the outer circumferential surface of the inner hose 2b and the signal line 27 is provided on the inner circumferential surface, both the power line 26 and the signal line 27 are connected to the outer hose. It is protected from the outside by (2a). Furthermore, by providing the signal line 27 inside the inner hose 2b, the signal line 27 becomes safer against the force from the outside. However, it is preferable that the power supply line 26 be provided outside the inner hose 2b because the garbage sucked through the inside of the inner hose 2b.

In addition, in the hose 2 of FIG. 11, the power line 26 is provided on the inner circumferential surface of the outer hose 2a and the signal line 27 is provided on the outer circumferential surface, but the opposite arrangement, that is, the outer circumferential surface of the outer hose 2a is provided. Even if the power supply line 26 made of steel or the like is provided and the signal line 27 is provided on the inner circumferential surface, sufficient insulation can be obtained at the same time as the insulating film on the outer circumferential surface of the outer hose 2a can be made thin. Therefore, weight reduction of a hose and improvement of operability of a hose can be achieved by it.

In addition, as shown in FIG. 14 as another embodiment of the present invention, a power line 28 made of steel or the like is provided on the outer circumferential surface of the outer hose 2a, and a signal line 29 made of a film line is provided on the inner circumferential surface. good. Since the signal line 29 provided on the inner circumferential surface of the outer hose 2a is made of a flat film line, it is possible to reduce the flow path resistance for exhaust reflux inside the outer hose 2a. As a result, it is possible to provide a lightweight and efficient exhaust reflux type vacuum cleaner. When attaching the film line used as the signal line 29, the film line may be attached to the inner surface side of the resin tape which is a hose material at the time of hose manufacture. A hose can be manufactured by winding this resin tape spirally.

In addition, as shown in FIG. 15 as another embodiment of the present invention, when the electric supply line 7 is helically installed along the protruding portion 30 of the outer circumferential surface of the inner hose 2b, the electric supply line 7 is It is difficult to contact with the exhaust reflux flowing in the direction of arrow A inside the outer hose 2a. Therefore, the resistance of the exhaust reflux is reduced and the performance of the exhaust reflux is improved.

According to the present invention, since the electric supply line is provided between the outer hose and the inner hose, it is possible to reduce the weight of the hose and improve the insulation.

In addition, when the electric supply line is provided between the external connection pipe and the internal connection pipe, the outer diameter of the external connection pipe can be reduced. Moreover, the assembly is easy because there is no need to plug in the electric supply line when connecting the external connection pipe and the external hose.

Claims (6)

An exhaust reflux type vacuum cleaner for refluxing exhaust gas from a cleaning main body to a suction port, (a) the basic cleaning body, (b) a hose formed by an outer hose each end of which is connected to the cleaner body and an inner hose installed in the outer hose, (c) a hose connection pipe formed by an external connection pipe fixed to the other end of the external hose, and an internal connection pipe installed in the external connection pipe and fixed to the other end of the internal hose, (d) is a vacuum cleaner which is rotatably connected to a hose connecting pipe and has a handle pipe having a handle controller, (e) an electric vacuum cleaner further comprising an electric supply line provided at least partially between the outer hose and the inner hose. The method of claim 1, The electric supply line is provided between the external connection pipe and the internal connection pipe cleaner. The method according to claim 1 or 2, An electric vacuum cleaner comprising an electric supply unit connected to the electric supply line on an outer circumferential surface of the external connection pipe. The method according to claim 1, 2 or 3, And a terminal connected to the handle controller inside the handle pipe and in contact with the electrical supply part. The method according to claim 1, 2, 3 or 4, The electrical supply unit is made of an electrical supply ring fitted to the outer peripheral surface of the external connection pipe, An electric cleaner, wherein one end of the electric supply ring protrudes in the inner circumferential direction of the external connection pipe and is connected to the electric supply line. The method according to claim 1, 2, 3, 4 or 5, The electric supply line is composed of a power line and / or a signal line, at least one of the power line or signal line is provided between the outer hose and the inner hose electric cleaner.