KR100484409B1 - A vacuum cleaner - Google Patents

Abstract

Cyclone canister type vacuum cleaners that simplify molds and improve dust collection efficiency.

The cyclone type dust box 2 is installed in the canister type cleaner body 1, and the dust box 2 is a hollow cylinder container, and an intake pipe protrudes from the side surface, and an opening at the tip side of the intake pipe is formed. The guide is formed near the center of the width direction of the dust box 2, and guides air introduced into the dust box 2 through the intake pipe into the flow direction of the cyclone generated inside the dust box 2. The vacuum cleaner of which the rib is continuously installed in the direction along the inner surface of the dust box near the bottom opening of the intake pipe on the inner surface of the dust box (2).

Description

Electric vacuum cleaner {A VACUUM CLEANER}

The present invention relates to a vacuum cleaner. More particularly, the present invention relates to a canister type vacuum cleaner having a cyclone dust box.

Conventional vacuum cleaners, especially upright type (vacuum) vacuum cleaners, do not use disposable dust collecting paper packs, and are freely attached to the suction path of the cleaner body and generate a vortex-like flow of air (so-called cyclones) inside. BACKGROUND ART It is known to use a cyclone dust collector which has a normal filter in a dust collecting case and allows the dust filtered by the filter to accumulate in the dust collecting case. This dust collector is economical since it can be used semi-permanently by the management of a filter compared to a disposable paper pack.

The present inventors carefully examined the use of such an economical and highly efficient cyclone dust collector in a canister type (lateral) vacuum cleaner, and as a result, a canister type electric vacuum cleaner having a cyclone dust box installed in the cleaner body was found. Developed.

As shown in FIG. 10, the cyclone-type dust box 51 forms an intake pipe 52 in a tangential direction along the inner surface of the dust box 51 to generate air introduced into the dust box 51. It is common to guide in the flow direction of the cyclone around the filter part 53. However, since the intake pipe 52 deviates from the center in the width direction of the dust box 51, when attaching the dust box 51 to the vacuum cleaner body in the canister type vacuum cleaner, the connector for the suction hose is connected to the width of the vacuum cleaner body. In order to form in the direction center, it is necessary to install a flow path between the connection part for a suction hose and the intake pipe 52 of the dust box 51, and since the cleaning main body becomes large, it is unpreferable.

Therefore, in order to arrange the front end side opening 54 of the intake pipe 52 at the center of the dust box so as to directly connect the intake pipe 52 to the suction hose connector, the intake pipe 52 is inclined as shown in FIG. 11. It is necessary to form in the shape of extension. However, this shape has a problem that the mold is complicated to form the point A portion that protrudes at an acute angle.

For example, the mold for forming the inside of the intake pipe 52 has a complicated shape even if a plurality of molds are combined to form an acute angle portion A and to form an inner wall extending in an oblique direction. In addition, the mold is more difficult to separate. In addition, since the outer mold for forming a portion facing the point A portion outside the intake pipe 52 has a fairly complicated shape, separation of the mold is almost impossible.

The present invention has been made to solve the above problems, and an object of the present invention is to provide a cyclone canister type vacuum cleaner that simplifies molds and improves dust collection efficiency.

In the vacuum cleaner of the present invention, a cyclone type dust box is installed in a canister type cleaner body, the dust box is a hollow cylindrical container, and an intake pipe protrudes from a side surface thereof, and the opening at the tip side of the intake pipe is formed of the dust box. It is formed near the center of the width direction of the box, the guide rib for guiding the air flowing through the intake pipe into the dust box in the flow direction of the cyclone generated inside the dust box, the lower side of the intake pipe on the inner surface of the dust box It is characterized by being provided continuously in the direction along the inner surface of the said dust box in the opening part root.

It is preferable that the length of the guide rib is set such that the substantially opening width of the bottom opening of the intake pipe is approximately equal to the opening width of the tip opening.

It is preferable that the front end of the guide rib and the inner wall of the intake pipe are connected by a smooth inclined surface.

Hereinafter, the vacuum cleaner of the present invention will be described in more detail with reference to the drawings. 1 is a perspective explanatory view showing an embodiment of the vacuum cleaner of the present invention, FIG. 2 is a plan explanatory view of the vacuum cleaner of FIG. 1, and FIG. 3 is a description of the case where the vacuum cleaner of FIG. 1 is viewed from the left side. 4 is a perspective explanatory view of the dust box of FIG. 1, FIG. 5 is a front view of the dust box of FIG. 1, FIG. 6 is a longitudinal cross-sectional view of the dust box of FIG. 1, and FIG. 7 is a vacuum cleaner of FIG. 1. 8 is a sectional view taken along line VIII-VIII of FIG. 6, and FIG. 9 is a front view of the dust box showing another embodiment of the vacuum cleaner of the present invention.

As shown in Fig. 1 to Fig. 8, the vacuum cleaner of the present embodiment is installed in the front of the canister type cleaner main body 1 with a cyclone type dust box 2 inserted from above and detachably installed, and the cleaner main body 1 At the back of the) is configured an electric blower (3) is built. In addition, although not shown, a series of suction hoses, suction pipes, and suction ports are connected to the connector 4 of the front end surface of the cleaner body 1. Moreover, the cleaner main body 1 is equipped with the front wheel 1a and a pair of rear wheels 1b and 1c so that a bottom surface can be moved.

As shown in Figs. 4 to 6 and Fig. 4, the dust box 2 has an approximately cylindrical outer filter inside the transparent or semi-transparent dust box body 5 formed of a substantially cylindrical transparent synthetic resin or the like. The part 6 and the inner filter part 7 are disposed concentric with the dust box main body 5.

As shown in FIG. 6, the outer filter part 6 has the outer normal member 8 and the outer filter 9 which coats the circumference | surroundings of the some slit 8a formed along the longitudinal direction in the outer normal member 8 side surface. )

Moreover, the awning part 10 extended toward the inner wall of the dust box main body 5 protrudes and is installed in the outer peripheral side surface of the outer normal member 8, and is provided. A gap 34 is formed between the inner wall of the dust box main body 5 and the shade 10. Accordingly, the first cyclone space 25 surrounded by the inner wall of the dust box main body 5, the outer filter 9, and the shade 10 between the inner wall of the dust box main body 5 and the outer filter part 6. And a space portion 26 for collecting dust communicating through the first cyclone space 25 and the gap 34.

The tip portion 10a of the sunshade 10 is bent downward so that when the dust moves from the first cyclone space 25 to the space portion 26 through the gap 34, the dust is caught on the tip portion 10a. It is desirable to have less.

Similarly, the inner filter part 7 consists of the inner side normal member 11 and the inner side filter 12 which covered the circumference | surroundings of several slits 11a formed along the longitudinal direction in the inner side normal member 11 side.

In addition, on the outer circumferential side surface of the inner normal member 11, the shade portion 13 extending in the inner wall direction of the outer cylindrical member 8 protrudes. A gap 35 is formed between the inner wall of the outer cylindrical member 8 and the shade portion 13. Therefore, between the inner wall of the outer cylindrical member 8 and the inner filter portion 7, the second cyclone space 27 surrounded by the inner wall of the outer cylindrical member 8, the inner filter 12 and the shade 13, and The space 28 which collects the dust communicated through the second cyclone space 27 and the gap 35 is formed.

Like the awning 10, the tip portion 13a of the awning 13 is also bent downward so that dust moves from the second cyclone space 27 to the space 28 through the gap 35. In this case, since dust is less likely to be caught on the tip portion 13a, it is preferable.

As shown in FIG. 6, the outer filter part 6 and the inner filter part 7 are fixed to the lower surface of the upper lid part 14 which closes the upper opening of the dust box body 5 in a state of being drowned downward. do.

Specifically, the intermediate lid portion 8b provided on the upper portion of the outer normal member 8 is fitted to the inner wall of the upper lid portion 14 with the seal 8c fitted. Between the middle lid part 8b and the dust box main body 5 is hermetically sealed by the sealing 8d provided in the edge part of the intermediate lid part 8b. On the other hand, the cylindrical holder 11b having a plurality of slits continuously provided on the upper portion of the inner normal member 11 is housed inside the upper lid portion 14 while supporting the cylindrical filter 29. Between the cylindrical holder 11b and the intermediate lid part 8b is hermetically sealed by the sealing 11c provided in the lower end of the outer peripheral surface of the cylindrical holder 11b.

The intake pipe 15 protrudes and is provided in the side surface of the dust box 2, The front end side opening 16 of the intake pipe 15 is the said connection hole 4 formed in the center of the width direction of the cleaner body (FIG. 1). 7 is formed near the center of the width direction of the dust box 2 so as to directly connect with the dust box 2.

In addition, in the vicinity of the bottom opening 17 of the intake pipe 15 on the inner surface of the dust box 2, the guide ribs 18 are continuously provided in the direction along the inner surface of the dust box 2, such a guide rib 18 is provided. By this, the air introduced into the dust box 2 through the intake pipe 15 can be guided in the flow direction of the cyclone generated inside the dust box 2 (for example, clockwise in FIG. 8). . As a result, air containing dust sucked from the intake pipe 15 shown in FIG. 8 is turned inside the dust box 2, whereby high dust collection efficiency can be obtained.

As shown in Figs. 4 to 5 and 8, the intake pipe 15 of the present embodiment exhibits a simple and smooth shape such as forming a taper that spreads outwardly toward the bottom of a portion of the cylinder. Accordingly, since there is no portion protruding at an acute angle as in the conventional intake pipe 52 shown in FIG. 10, a part of the intake pipe 15 is formed using the slide core, thereby simplifying the mold.

In addition, the guide rib 18 can be easily formed only by forming a thin groove for the guide rib on the contact surface between the slide core constituting the intake pipe 15 and the core constituting the dust box main body 5. have.

In addition, since the guide rib 18 is formed in a flat shape as shown in FIG. 5 so that the tip portion is less likely to become a resistance of the air sucked into the dust box body 5 from the intake pipe 15, suction is performed. The deterioration of a characteristic can be reduced. In addition, in another embodiment of the present invention, as shown in FIG. 9, a protrusion 18a is provided at the tip of the guide rib 18 to improve the collection efficiency. This provides a projection portion 18a to narrow the gap between the portion where the projection portion 18a is provided in the intake pipe 15 and the portion facing it (maximum spacing of the opening width in the intake pipe 15). Reduces resistance to turn and smooths turn.

In this embodiment, as shown in FIG. 9, the length of the guide rib 18 is substantially equal to the opening width Ｗ 2 of the front end opening 16 of the lower opening 17 of the intake pipe 15. Is set. Therefore, the flow of air flowing through the intake pipe 15 is formed between the two-dot chain line P connecting the tip of the guide rib 18 from one end of the tip opening 16 and the inner wall of the intake pipe 15 facing it. It flows smoothly along an almost straight path and the collection efficiency is improved.

In addition, when the tip end of the guide rib 18 and the inner wall of the intake pipe 15 are connected by a smooth inclined surface shown by the two-dot chain line P in FIG. Since it becomes difficult to accumulate in the bottom part of (18), it is preferable. This inclined surface can be fixed to the intake pipe 15 as a separate member.

In addition, as shown in Figure 6, the bottom of the dust box main body 5 is provided with a bottom lid 21 configured to be opened and closed freely by a hinge 20 provided in the lower portion of the handle (19). This bottom lid 21 presses the upper part of the lever 22 provided in the lower part of the intake pipe 15, and the clamp 23 formed in the lower end of the lever 22 is stopped from the detent 24 by the bottom lid 21 side. It peels off, and the lower opening of the dust box main body 5 is opened.

The type and material of the outer filter 9 and the inner filter 12 are not particularly limited in the present invention. For example, a mesh filter is provided in a tubular shape on the outer circumference of the tubular body serving as the ventilation path of the filtered air. Filters and the like are employed. Moreover, other filters, such as the filter which normally installed the filter paper filter folded in the pleats shape (snake boat shape), can also be employ | adopted.

Hereinafter, each flow of dust and air in the vacuum cleaner of the form of this embodiment is demonstrated.

As illustrated in FIGS. 6 and 7, air containing dust sucked from the outside of the cleaner body 1 enters the inside of the dust box 2 through the connector 4 and the intake pipe 15, and the dust box body ( Turn along the inner wall of 5). Specifically, the inside of the first cyclone space 25 surrounded by the inner wall of the dust box main body 5, the outer filter 9 and the shade 10 is turned inside the outer filter 9 while the air is turned, and dust (rough Dust) passes through the gap 34 between the inner wall of the dust box main body 5 and the shade 10, and accumulates in the space 26 of the bottom of the dust box main body 5.

In the same form, the air flowing into the outer filter 9 also turns. Specifically, in the second cyclone space 27 surrounded by the outer cylindrical member 8, the inner filter 12, and the shading portion 13, the air flows inside the inner filter 12 while the air is turned, and the dust is the outer normal. It passes through the clearance gap 35 between the member 8 and the awning part 13, and is deposited in the space 28 of the bottom part of the dust box main body 5.

In addition, the bottom lid 21 is provided with a packing 36 for closing the gap between the bottom edge of the outer normal member 8 and the bottom lid 21, the space portion 26 along the bottom lid 21. Air leaks from the space to the space 28.

The dust-filtered air in the dust box main body 5 is further filtered by the cylindrical filter 29 inside the upper lid portion 14 and then the dust box 2 from the exhaust port 30 at the rear end of the upper lid portion 14. The mesh is discharged outward and enters the electric blower 3 through the connecting passage 31 shown in FIG. 7 and is filtered through the exhaust filter 32 from the electric blower 3 and formed on the side of the cleaner body 1. mesh) is discharged to the outside through a mesh of the exhaust port 33 and the rear wheel 1b or 1c.

According to the present invention, a part of the intake pipe is formed of a slide core to simplify the mold. In addition, the guide ribs are shaped along the inner surface of the dust box so that the guide ribs do not become a resistance of the airflow that rotates inside the dust box, thereby improving dust collection efficiency.

1 is a perspective explanatory diagram showing an embodiment of the vacuum cleaner of the present invention.

FIG. 2 is a plan explanatory view of the vacuum cleaner of FIG. 1.

FIG. 3 is an explanatory view when seen from the left side of the vacuum cleaner of FIG.

4 is a perspective explanatory diagram of the dust box of FIG. 1.

5 is a front view of the dust box of FIG.

6 is a longitudinal cross-sectional view of the dust box of FIG. 1.

7 is a longitudinal cross-sectional view of the vacuum cleaner of FIG. 1.

8 is a cross-sectional view taken along line VII-VII of FIG. 6.

Fig. 9 is a front view of a dust box showing another embodiment of the vacuum cleaner of the present invention.

10 is a cross-sectional view showing an example of a conventional cyclone dust box.

11 is a cross-sectional view showing another example of a conventional cyclone dust box.

♠♠♠ Explanation of the Signs of the Main Parts of the Drawing ♠♠♠

１ Electric vacuum cleaner ２ dust box

３ Electric blower

Claims (3)

Cyclone dust box is installed in the canister type vacuum cleaner body, The dust box is made of a hollow cylinder container, the intake pipe is protruded on the side, A tip side opening of the intake pipe is formed near the center of the width direction of the dust box, Guide ribs for guiding air introduced into the dust box through the intake pipe in the flow direction of the cyclone generated inside the dust box are located near the bottom opening of the intake pipe of the inner surface of the dust box, and according to the inner surface of the dust box. Vacuum cleaner installed in the direction. The method of claim 1, And the length of the guide rib is set so that the substantially opening width of the bottom opening of the intake pipe is approximately equal to the opening width of the tip opening. The method according to claim 1 or 2, And a smooth inclined surface between the tip of the guide rib and the inner wall of the intake pipe.