JPH10127539A - Vacuum cleaner - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a vacuum cleaner capable of readily removing trashes without complicating the constitution of the connecting part between a cleaner body and a sucker for floor for connecting a hose and even in case a stick-like thing such as a tooth pick or a hair pin and trashes clog at the connecting part. SOLUTION: In this vacuum cleaner, a rotary pipe 7 rotatably provided at a sucker 2 for floor is fitted removably into a cylindrical sucking port 6 of the cleaner body 1, and a flow path penetrating part for hose is formed at a corresponding region of the inner wall of the cylindrical sucking port of the cleaner body 1 and the rotary pipe 7. In this case, the flow path penetrating part 20 for hose is formed like a U-letter such that the end part of the rotary pipe 7 on the side of the cleaner body 1 becomes an open end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vertical (upright) vacuum cleaner, and more particularly, to an electric vacuum cleaner.
The present invention relates to a configuration of a flow path from a hose in a vacuum cleaner provided with a hose for easily cleaning a desk or a gap without removing a floor suction tool.

[0002]

2. Description of the Related Art As shown in Japanese Utility Model Publication No. 4-4686, a conventional general vertical type vacuum cleaner mainly absorbs dust from a floor suction tool into a paper pack inside the cleaner body. With a simple cleaning method, the clearance was removed by removing the floor suction tool and replacing the clearance nozzle.

However, in this method, it is difficult to clean a desk or the like while lifting the main body. Therefore, a flexible hose is used in a flow path for sucking dust into a paper pack inside the main body of the vacuum cleaner. I use the hose to clean the desk and so on.

[0004]

However, the method of removing the floor suction device and replacing it with a hose is troublesome because the replacement is troublesome, and the floor suction device can be used with the floor suction device attached. If a hose is to be connected between the vacuum cleaner bodies, the hose is connected to the floor suction device in such a manner that the hose is laid sideways at a connection point between the vacuum cleaner body and the floor suction device. In this case, considering the flow path that sucks dust from the hose, the flow path passing through the connection point bends at a right angle, so if you accidentally suck a rod-shaped object such as a toothpick or a hairpin, it will be used for maintenance when it gets stuck there. There were challenges.

[0005] That is, the connecting point between the floor suction device and the cleaner main body is connected to the floor suction device with the connecting tube of the floor suction device fitted into the cylindrical suction port of the cleaner main body. Has a shape communicating with the hose suction port on the inner wall of the cylindrical suction port of the cleaner body. Therefore, if a rod-shaped object such as a toothpick or a hairpin is caught in this bent portion and clogged with debris, even if the floor suction device is to be removed in order to remove them, a toothpick or a toothpick is inserted into the through hole of the connecting pipe. A rod-like object such as a hairpin gets stuck and the floor suction device cannot be removed. It is conceivable that the length of the connecting pipe of the floor suction tool may be reduced to eliminate the need for a through hole. However, if the length of the connecting pipe is reduced, the connection strength is reduced. In addition, in order to reinforce the weakened strength, the configuration of the connection portion between the cleaner body and the floor suction tool becomes complicated.

Accordingly, the present invention has been made to solve such a problem, and a toothpick can be added to the structure without complicating the structure of a connecting portion between a vacuum cleaner main body for connecting a hose and a floor suction tool. It is an object of the present invention to provide an electric vacuum cleaner capable of easily removing dust when a stick-like object such as a hairpin or a hairpin is caught and clogged with dust.

[0007]

SUMMARY OF THE INVENTION In order to achieve the above object, the present invention provides a suction pipe which is rotatably provided on a floor suction tool and which is detachably fitted to a cylindrical suction port of a cleaner body. In the vacuum cleaner, a hose flow passage penetrating portion is formed at a position corresponding to the inner wall of the cylindrical suction port of the cleaner body and the connecting pipe of the suction tool for floor, and provided on the connecting pipe of the suction tool for floor. Is formed in a U-shape in which the end of the connecting pipe on the cleaner body side is an open end.

That is, in the configuration of the present invention, the flow path for sucking dust from the hose penetrates the connecting portion of the floor suction tool with the cleaner body, and the connecting portion has a U-shape. If the connection point between the floor suction device and the vacuum cleaner body is configured as described above, even if a stick-shaped object such as a toothpick or a hairpin is caught on the connection portion and the dust is clogged, the floor suction device is still attached to the vacuum cleaner body. From the floor, you can remove the debris by removing the floor suction device.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a front view of a vertical type vacuum cleaner embodying the present invention, FIG. 2 is a cross-sectional view of a main part viewed from a side, FIG. 3 is a cross-sectional view of a main part viewed from the front, and FIG. It is a side sectional view of an ingredient.

As shown in FIG. 1, the vertical type vacuum cleaner of this embodiment comprises a cleaner body 1, a floor suction device 2 attached to a lower end thereof, and a hose 3 attached to a lower side surface. An operation handle 4 is provided on the upper side of the cleaner body 1, and a switch 5 is provided on the operation handle 4.

As shown in FIG. 2, the cleaner main body 1 and the floor suction tool 2 are connected to a cylindrical suction port 6 provided at the lower end of the cleaner main body 1 and to the floor suction tool 2. A rotary pipe 7, which is a connecting pipe rotatably provided, is fitted and connected. At the upper end side of the cylindrical suction port 6 of the vacuum cleaner main body 1, a paper pack 8 for storing dust is mounted via a mouth plate 9, and is sucked by an electric blower (not shown).

A hose suction port 10 is formed on the inner wall of the cylindrical suction port 6 of the cleaner body 1. As shown in FIG. 3, the hose suction port 10 communicates with a hose mounting portion 11 that opens on a lower side surface of the cleaner body 1. The connection pipe 3a on the hose 3 side is fitted to the hose mounting portion 11.

On the other hand, the floor suction tool 2 has a pair of front wheels 12 and rear wheels 13, and a suction port 14 and a brush 15 are provided on the bottom side between them. Further, the rotary pipe 7 is rotatably mounted on the shaft 16 from an upright state as shown in FIG. 2 to a state in which the rotary pipe 7 has fallen backward (to the right in the drawing). In the upright state of FIG. 2, the tip end opening 7 a of the rotorpipe 7 is closed as shown in the figure, and the passage 17 from the suction port 14 formed on the lower surface side of the floor suction tool 2 is not shown. When the rotary pipe 7 is tilted so that the cleaner body 1 is laid back from this upright state without communication, the tip opening 7 a
And is communicated with the passage 17.

At the center of the rotary pipe 7,
A C-shaped leaf spring 18 is fitted into the inside thereof,
A coupling projection 19 provided on the C-shaped leaf spring 18 projects to the front side through a hole formed in the rotary pipe 7. On the other hand, the cylindrical suction port 6 on the side of the cleaner body 1 to which the rotary pipe 7 is fitted has a hole in which the coupling projection 19 fits in a position corresponding to the coupling projection 19. The tip side of the coupling projection 19 is rounded,
When fitting the rotary pipe 7 to the cylindrical suction port 6,
The coupling projection 19 is inserted into the cylindrical suction port 6 while being pushed with a finger, and inserted until the coupling projection 19 projects outward at the position of the corresponding hole of the cylindrical suction port 6. This prevents the floor suction tool 2 from falling off during cleaning.
On the other hand, when removing the floor suction tool 2 due to clogging of dust or the like, as shown in FIG. 2, the rotary pipe 7 is pushed while pushing the head of the coupling projection 19 protruding outside the cylindrical suction port 6 with a finger. By pulling out, the floor suction tool 2 can be easily removed.

Further, on the upper side of the rotary pipe 7, when the rotary pipe 7 is fitted to the cylindrical suction port 6 of the cleaner body 1 as described above, it is formed on the inner wall of the cylindrical suction port 6. A hose flow passage penetrating part 20 communicating with the hose suction port 10 is formed. The hose flow passage penetrating portion 20 is not a circular hole that matches the hose suction port 10 on the inner wall of the cylindrical suction port as in the related art, but is cut out at the upper side of the circular hole as shown in FIG. The end of the cleaner body 1 is formed in a U-shape with an open end.

Next, the operation of the vertical type vacuum cleaner constructed as described above during use will be described.

In order to clean the floor, the cleaner main body 1 is tilted backward from the state shown in FIG. 2 by holding the operation handle 4 and the switch 5 is operated to drive the electric blower, and the floor suction device 2 is moved. Clean by running back and forth. At this time, since the rotary pipe 7 of the floor suction tool 2 is also inclined backward, the tip opening 7a of the rotary pipe 7 and the suction port 14 on the lower surface side of the floor suction tool 2 communicate with each other to remove dust on the floor. Can be sucked into the paper pack 8 in the cleaner body 1 from the suction port 14 through the passage 17 and the rotary pipe 7. The rotary pipe 7 also communicates with the hose 3 through the U-shaped hose flow passage penetrating portion 20 and the hose suction port 10 on the inner wall of the cylindrical suction port. Is set in the retainer 1b on the side of the cleaner body 1 and the opening thereof is sealed, so that air flows in from here and the suction force from the floor suction tool 2 decreases. Absent.

On the other hand, when cleaning a desk, a gap or the like during floor cleaning as described above, the cleaner main body 1 is returned to an upright state as shown in FIG. Remove from the retainer 1b of the vacuum cleaner body 1 and remove
Clean it by pressing the opening on the desk or in the gap. At this time, the rotary pipe 7 is also in the upright state as shown in FIG. 2, so that the tip opening 7a is closed, and the suction force of the electric blower works only on the hose 3. For this reason, not only dust on a desk and a gap, but also a toothpick and a hairpin can be sucked.

As described above, if a rod-shaped object such as a toothpick or a hairpin is sucked while cleaning a desk or a gap using the hose 3, the flow path from the hose 3 is changed to the paper pack 8. As described above, a rod-shaped object such as a toothpick or a hairpin sucked from the hose 3 may be caught in a bent portion that intersects the flow path of the cylindrical suction port 6 that reaches the air inlet. In such a case, the dust sucked in after that is clogged in the bent portion, so that cleaning cannot be performed. Therefore, the floor suction device 2 is removed from the cleaner main body 1 to remove the clogged dust. In the present embodiment, the hose flow passage penetrating portion 20 of the rotary pipe 7 has a U-shaped upper opening. Because it is shaped
Even if a rod-shaped object such as a toothpick or a hairpin is caught on the bent portion, the rotary pipe 7 can be easily pulled out, and the clogged dust can be removed.

By the way, if the flow path for sucking dust is sucked only from the suction opening 3b on the hose 3 side as described above, it is necessary to pass a certain amount of air in order to protect the motor and the like of the electric blower. Must. However, the user is too enthusiastic about cleaning, pressing the suction port on the hose 3 side against the cleaning surface, heating the motor, causing the motor to fail, or causing a vacuum state due to suction force. The case of the cleaner body 1 may be deformed.

An embodiment which solves such a problem will be described with reference to FIGS. FIG. 5 is a front view of the vertical type vacuum cleaner, FIG. 6 is a side view thereof, and FIG. The internal configurations of the cleaner body 1 and the floor suction tool 2 are the same as those in the above-described embodiment.

This vertical type vacuum cleaner is provided with the floor suction tool 2 and the hose 3 connected to the vacuum cleaner main body 1 as described above. And when not using the hose 3,
As shown in FIGS. 5 and 6, the suction opening 3b of the hose 3 is held by a retainer 1b provided on the upper side of the cleaner main body 1 so that the hose 3 extends along the side of the cleaner main body 1. Is set to

The suction port 3b of the hose 3 and the cleaner body 1
The side retainer 1b is configured as shown in FIG. The retainer 1b on the side of the cleaner body 1 has an outer shape conforming to the inner shape of the end of the hose suction opening 3b as shown in FIG. Slits 1d, 1d are formed above and below the projection 1c and the locking projection 1c.
d is formed in order to give elasticity to the portion provided with the locking projection 1c. In addition, a positioning protrusion 1e for preventing the hose 2 from being twisted is formed at the base of the retainer 1b at the base of the retainer 1b.

On the other hand, on the suction port 3b side of the hose 3, a vertically long locking hole 3c into which the locking projection 1c of the retainer 1b is fitted is formed on both side surfaces of the distal end portion. In addition, a positioning U-shaped groove 3d that matches the positioning protrusion 1e of the retainer 1b is formed at the upper edge of the suction opening 3b.

In the above construction, when the hose 3 is not used, the suction port 3b is moved while the positioning U-shaped groove 3d of the suction port 3b is aligned with the positioning protrusion 1e of the retainer 1b of the cleaner body 1. Insert so that the locking projection 1c of the retainer 1b reaches the locking hole 3c of the suction opening 3b so as to cover the retainer 1b. Thereby, the hose 3 can be prevented from being twisted, and the suction opening 3b of the hose 3 can be prevented from dropping off from the retainer 1b due to vibration or the like at the time of cleaning using the floor suction fitting 2. Since the suction opening 3b and the retainer 1b are in close contact with each other, and the locking hole 3c and the positioning U-shaped groove 3d are closed by the locking protrusion 1c and the positioning protrusion 1e, respectively. At the time of cleaning using the air, air flows in from the suction port 3b of the hose 3 and the floor suction port 2b.
There is no decrease in the suction force from the air.

On the other hand, when cleaning a desk or a gap using the hose 3, by pulling the hose suction opening 3b from the state shown in FIG. 2A, the locking projection 1c of the retainer 1b is pulled. Is pressed down by the elasticity of the slits 1d, 1d, so that the suction opening 3b is
Removed from Then, it is possible to clean a desk, a gap, and the like using the suction opening 3b. At this time, even if the suction opening 3b is brought into close contact with the cleaning surface, the positioning U-shaped groove 3d is used.
Then, air flows from the locking hole 3c, so that heating of the motor of the electric blower, deformation of the case of the cleaner body 1, and the like can be prevented.

That is, in this embodiment, the heating of the motor and the deformation of the cleaner body 1 are prevented with a simple configuration by effectively utilizing the positioning U-shaped groove 3d and the locking hole 3c. .

In the above-described embodiment, the air flows in through the positioning U-shaped groove 3d and the locking hole 3c. However, since the positioning U-shaped groove 3d is located on the cleaning surface, the air flows in with the inflow of the air. This is particularly effective in that dust and the like are sucked in. Therefore, the locking hole 3c may be formed as a recess instead of a through hole.

[0030]

As described above, according to the present invention, the hose flow passage penetrating portion provided in the connecting pipe of the floor suction tool is connected to the U-side end of the connecting pipe on the cleaner body side. Because it is formed in a V-shape, even if dust such as a toothpick or a hairpin is caught on the bent part of the flow path from the hose at the connection point between the cleaner body and the floor suction tool, It is possible to easily pull out the connecting pipe of the floor suction tool from the main body to remove such dust, and there is an effect that maintenance is easy with a simple configuration.

[Brief description of the drawings]

FIG. 1 is a front view of a vertical type vacuum cleaner embodying the present invention.

FIG. 2 is an essential part cross-sectional view of the vertical type vacuum cleaner as viewed from a side.

FIG. 3 is a sectional view of a main part of the vertical type vacuum cleaner as viewed from the front.

FIG. 4 is a side sectional view of the floor suction tool of the vertical vacuum cleaner.

FIG. 5 is a front view of a vertical cleaner according to another embodiment.

FIG. 6 is a side view of the vertical type vacuum cleaner.

FIG. 7 is a sectional view of a main part of the vertical type vacuum cleaner.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Vacuum cleaner main body 2 Floor suction tool 3 Hose 4 Operation handle 6 Cylindrical suction port 7 Rotary pipe 8 Paper pack 10 Hose suction port 20 Hose channel penetration part 1b Retainer 1c Lock projection 1e Positioning projection 3b Hose suction Mouthpiece 3c Lock hole 3d Positioning U-shaped groove

Claims (1)

[Claims] 1. A connecting pipe rotatably provided on a floor suction tool is detachably fitted to a cylindrical suction port of a vacuum cleaner main body, and is connected to an inner wall of the cylindrical suction port of the vacuum cleaner main body and a floor. In a vacuum cleaner having a hose passage penetrating portion formed in a corresponding portion of a connecting pipe of a suction tool, a hose passage penetrating section provided in a connecting pipe of the floor suction tool is connected to a cleaner body of the connecting pipe. A vacuum cleaner having a U-shaped end having an open end.