JP2907857B2 - Electric vacuum cleaner - Google Patents

Description

Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a vacuum cleaner, and more particularly to a vacuum cleaner having a configuration that is strong against small turns and falls and does not apply an excessive force to a hose.

[Conventional technology]

Conventional vacuum cleaners in which the main body of the vacuum cleaner can be rotated are described in Japanese Utility Model Publication No. Sho 43-29421, Japanese Utility Model Publication No. 40-21889, and Japanese Utility Model Utility Model No. Sho 61-1979.
It was as described in No. 37.

[Problems to be solved by the invention]

The above-mentioned prior art does not consider the point of untwisting of the hose, and has a problem that the main body is overturned due to the breakage of the hose or the twisting of the hose.

SUMMARY OF THE INVENTION An object of the present invention is to rotatably connect a hose connected to a cleaner body rotatably provided on a wheel base to prevent the hose from being twisted and to prevent the cleaner from tipping over.

[Means for solving the problem]

In order to achieve the above object, a feature of the present invention is that a cleaner main body having a built-in dust collector and an electric blower for accommodating a filter and having a substantially circular shape when viewed from above is provided. A wheel base that is placed and has a substantially circular shape when viewed from above, a moving unit that protrudes outside the cleaner body, and moves the wheel base on a surface to be cleaned, and dust collection of the cleaner body. A hose mounting portion that communicates with the portion and allows a hose to be detachably attached from the outside. The lower portion of the cleaner main body is fitted into the wheel mount, and the cleaner main body is rotated with respect to the wheel mount. Freely supporting the hose mounting portion and the electric blower on the opposite side with respect to the wheel base rotation center, and the position where the electric blower is disposed below the position of the hose mounting portion. Side and said hose A biasing portion lies in the structure rotatably with respect to the cleaner body.

[Action]

According to the present invention, since the cleaner body and the wheel base are configured to be substantially circular when viewed from above, the direction change in a narrow portion can be performed with a minimum radius, and operability is improved.

In addition, the moving means is projected outside the cleaner body, and the position where the electric blower, which is a main component for determining the position of the center of gravity of the cleaner body, is disposed with respect to the hose mounting portion and the wheel base rotation center. In addition to being located on the opposite side, the position where the electric blower is arranged is located below the position of the hose attachment portion, and the hose attachment portion is configured to be rotatable with respect to the cleaner body. Therefore, it is possible to provide an electric vacuum cleaner in which stability is maintained even when the cleaner main body is inclined over a sill, etc., twisting of the hose is prevented, and the cleaner main body is prevented from tipping over.

〔Example〕

Hereinafter, an embodiment of the vacuum cleaner of the present invention will be described with reference to the drawings. The cleaner body 1 includes an electric blower 2, a cord reel 4 around which a power cord 3 is wound, and a dust collecting section 6 in which a paper bag filter 5 is provided. The dust collecting section 6 includes a dust collecting lid 7. . The vacuum cleaner body 1 has a hemispherical upper case 1a and a lower case 1b.
Consists of The vacuum cleaner main body 1 has the caster 8 protruding from the vacuum cleaner main body 1 and mounted on all sides.
A wheel base 10 that can be rotated with respect to the rotating shaft 9 via a rotating shaft 9.

If each part is further explained, the electric blower 2
It is held by the cleaner body 1 so as to be clamped from both sides by 11 and 12. Around the electric blower 2, a sound absorbing cover 13 and a sound insulating wall 14 are provided. The sound insulating wall 14 is integrally formed with a sound deadening tube 15. The dust collecting section 6 includes an inner case 16 that is in contact with the vibration isolating rubber 12 on the front side of the electric blower 2. Inside the inner case 16, a box-shaped after filter 17 on which a filter material is stretched is mounted. The paper bag filter 5 can be set inside the after filter 17 and can be attached by attaching one side of the paper section 5a of the paper bag filter 5 to the after filter 17 and the other side to the filter base 35. . The filter stand 35 has a deodorant / air freshener 36
Is provided with a claw 38 for preventing the deodorant and fragrance 36 from coming off and a window 39 for deodorant and fragrance scattering. An airtight packing 18 is provided around the opening of the afterfilter 17. The airtight packing 18 includes an opening end of the inner case 16 and the dust collecting lid 7.
The dust collecting part 6 is kept airtight by contacting the back cover 18 of the dust collecting part 6. Further, the dust collecting lid 7 is provided with a hose mounting port 20 to which the hose 19 can be detachably mounted, and is rotatable. Attaching and removing the paper bag filter 5 is a clamp
This is performed by releasing the dust cover 21 and opening and closing the dust collecting lid 7.

On the upper surface of the cleaner body 1, there are provided a carrying handle 22 and a dust meter 23 for displaying the amount of clogging of the filter. A plurality of wheels 24 are mounted on the bottom surface of the cleaner body 1 and are in contact with the inner surface of the wheel base 10 to form the cleaner body 1.
And the rotation of the wheel base 10 is made smooth. In addition, a tire portion 24a is provided on the outer periphery of the wheel 24 so as to reduce running noise.
Is also provided.

The wheel base 10 is fixed to the lower case 1b of the cleaner body 1 by screws from below the rotating shaft 9 via a washer, and can be rotated about the rotating shaft 9. In the case of 25, the rotation is suppressed. That is, right 36
It can rotate 0 degrees and left 360 degrees. Further, the wheel base 10 is formed in a substantially circular shape when viewed from above. The caster 8 is provided so as to protrude from the outer shape of the cleaner body 1. Wheelbase 10
A caster cover 26 is provided so as to cover the caster 8. A bumper 27 is provided on the outer periphery of the caster cover 26 and the wheel base 10 to prevent damage to furniture and the like. The bumper 27 forms the outermost shape of the cleaner body 1.

An exhaust port 28 and a power cord outlet 29 are provided on the rear side of the cleaner body 1.

In the above configuration, when a vacuum cleaner is used, the hose 19, the extension pipe 30, and the suction port 31 are connected to the hose mounting port 20 of the cleaner body 1.
And pull out the power cord 3 from the cord outlet 29 and insert it into an outlet (not shown). Next, when the operation switch 32 at the end of the hose 19 is turned on, the electric blower 2 is operated, and the air flow containing a large amount of dust passes from the suction port 31 through the extension pipe 30 and the hose 19 by the suction force, and the dust collection section Dust and clean air are separated by the paper bag filter 5 and the clean air flow passes through the electric blower 2 and the silencer 15 and is discharged from the rear exhaust port 28. When the room is cleaned in this state, even if the wheel base 10 or the caster cover 26 hits an obstacle 33 such as furniture placed in the room, the bumper
27 protects and prevents damage to furniture.

Further, in this vacuum cleaner, since the cleaner body 1 can rotate on the wheel base 10, it is easy to change the direction of the hose 19 in a small room or the like, and since the direction of the surface to be cleaned is changed by the caster 8, In addition, since the rotation is performed by the wheels 24 between the wheel base 10 and the cleaner body 1, the operation can be performed lightly on the surface to be cleaned without being affected by the rotation. Conversely, the caster cover 26 and the like are running around the cleaner body 1,
Even if it is hooked on the feet of a table or the like as shown in FIG. 4, the wheel base 10 rotates in reverse, so that obstacles can be cleared, and the cleaner can be moved smoothly even in a room with many furniture.

In addition, since the cleaner body 1 does not rotate unrestrictedly with respect to the wheel base 10 and limits the rotation angle, the power cord 3 is
The vacuum cleaner can be routed without winding around 10.
Further, in the vacuum cleaner of the present embodiment, the caster 8 is disposed so as to protrude to the outside of the vacuum cleaner main body 1, and the bumper 27 of the vacuum cleaner main body 1 is configured to have the maximum outer shape. Even if the side of the cleaner body 1 to which the hose 19 is attached is fixed, the lower wheel base 10 can be avoided while rotating. Furthermore, since the base of the overhanging caster part is tied to the outer periphery of the wheel base 10 in a smooth shape,
It is possible to avoid obstacles by slipping even if it hits an obstacle, and since the casters 8 are arranged in four directions, it is configured to smoothly change directions and get over sills. Further, according to the present embodiment, since the electric blower 2 and the cord reel 4 are provided at a low position, a low center of gravity structure can be adopted even when the cleaner is overturned, which is advantageous for overturning. Furthermore, since the electric fan 2 is configured so that the wheel base 10 covers the outside, the noise generated by the electric fan 2 also has a double case structure by the lower case 1b and the case of the wheel base 10, so that the sound insulation effect is reduced. Increased noise can be further reduced. Since the shape of the vacuum cleaner body 1 and the wheel base 10 when viewed from above is substantially a perfect circle, rotation can be performed with a minimum radius even when turning in a narrow part. In this embodiment, an exhaust port is provided at the rear of the cleaner body 1.
Although 28 is provided, a distributed exhaust port that exhausts from the entire circumference of the sliding portion 34 between the cleaner body 1 and the wheel base 10 may be used. At this time, the sliding part
By making the opening width smaller than the diameter of the power supply cord, it is possible to prevent the cord from being caught in the sliding portion 34 when the cleaner body rotates.

Further, as another embodiment, when used as a flat part 1c formed on the upper surface of the cleaner body 1, a rotating wheel is used.
Since 24 is provided, even if the floor surface is on a tatami mat or a tatami floor, it can be used as a rotating chair because there is no need to generate excessive force with these surfaces when rotating and it does not have to rotate. It can also be.

According to the present embodiment, the following effects can be initialized.

Since the electric blower 2 and the cord reel 4 are arranged at a low position, a low center of gravity structure can be adopted even when the vacuum cleaner is overturned, which is advantageous for overturning.

Since the electric fan 2 is configured so that the wheel base 10 covers the outside, the noise generated by the electric fan 2 also has a double case structure by the lower case 1b and the case of the wheel base 10, so that the sound insulation effect is increased. Therefore, the noise can be further reduced.

Since exhaust at a low speed is possible from the entire circumference of the cleaner body, the exhaust flow discharged from the cleaner body does not cause dust or the like on the surface to be cleaned.

Since the shape of the vacuum cleaner body 1 and the wheel base 10 when viewed from above is substantially a perfect circle, rotation can be performed with a minimum radius even when turning in a narrow part.

A cleaner body including a dust collecting unit for accommodating a filter and an electric blower, a wheel base for rotatably mounting the cleaner body, and moving the wheel base on a surface to be cleaned while rotating. In a vacuum cleaner provided with a moving means, the moving means is provided at the lower part of the wheel stand and protruded outward from the main body of the cleaner. Stable running of the main body of the vacuum cleaner can be achieved without having to worry about objects.

Since the rotation range of the cleaner main body 1 on the wheel base 10 is within 360 degrees, even if the power cord is entangled with the main body by the rotation, if the main body is rotated with an excessive force, it is no more. Since there is a stopper that does not rotate, no excessive force is applied to the power cord, which is also good for safety.

〔The invention's effect〕

According to the present invention, since the cleaner body and the wheel base are configured to be substantially circular when viewed from above, the direction change in a narrow portion can be performed with a minimum radius, and operability is improved.

In addition, the moving means is projected outside the cleaner body, and the position where the electric blower, which is a main component for determining the position of the center of gravity of the cleaner body, is disposed with respect to the hose mounting portion and the wheel base rotation center. In addition to being located on the opposite side, the position where the electric blower is arranged is located below the position of the hose attachment portion, and the hose attachment portion is configured to be rotatable with respect to the cleaner body. Therefore, it is possible to provide an electric vacuum cleaner in which stability is maintained even when the cleaner main body is inclined over a sill, etc., twisting of the hose is prevented, and the cleaner main body is prevented from tipping over.

[Brief description of the drawings]

FIG. 1 is a sectional view of a vacuum cleaner according to an embodiment of the present invention, and FIG.
The figure is an exploded perspective view of the wheel base, FIG. 3 is an external view, FIG.
FIG. 5 is a view showing a state of avoiding obstacles, FIGS. 6 and 7 are views showing a positional relationship of the stopper, FIG. 8 is an exploded perspective view of the lower case and the wheel base, and FIG. An example having a flat portion on the upper surface of the example, FIG. 10 is a diagram showing a state in which a dust case lid is opened, FIG. 11 is a diagram showing a state in which a deodorant / fragrance is stored,
FIG. 12 is a cross-sectional view of the storage unit in FIG. 1 ... vacuum cleaner body, 2 ... electric blower, 5 ... paper bag filter, 6 ... dust collector, 10 ... wheel stand, 19 ... hose,
20… Hose mounting port.

Continuation of the front page (58) Field surveyed (Int.Cl. ⁶ , DB name) A47L 9/00-9/24

Claims (1)

(57) [Claims] 1. A cleaner body having a built-in dust collecting part for accommodating a filter and an electric blower, and having a substantially circular shape when viewed from above, and a shape having the cleaner body mounted thereon and substantially viewed from above. A circular wheel base, moving means protruding to the outside of the cleaner body and moving the wheel base on a surface to be cleaned, and communicating with a dust collecting portion of the cleaner body, and a hose detachable from the outside. A hose mounting portion, wherein the lower portion of the cleaner main body is fitted into the wheel mount, and the cleaner main body is rotatably supported with respect to the wheel mount. With the electric blower positioned on the opposite side to the wheel base rotation center, the position where the electric blower is arranged is positioned below the position of the hose mounting portion, and the hose mounting portion is Rotatable relative to the vacuum cleaner body Vacuum cleaner which is characterized in that form.