JP3784296B2 - Vacuum cleaner inlet and vacuum cleaner - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a suction port body of a vacuum cleaner in which a rotary cleaning body is provided in a suction chamber and dust can be scraped up by rotating the rotary cleaning body.
[0002]
[Prior art]
Generally, a suction port body of an electric vacuum cleaner includes a suction port body having a suction chamber having a suction opening on a bottom surface, a rotary cleaning body rotatably mounted in the suction chamber and having a cleaning brush on the outer periphery, and a suction port. And a connecting pipe that is provided at the center with respect to the left-right direction of the mouth body and communicates with the suction chamber. And by rotating a rotary cleaning body, dust can be made to flow into a vacuum cleaner main body via a suction chamber and a connection pipe, while scraping up dust.
[0003]
In such a suction port body, the rotary cleaning body rotates at a high speed, and thread-like dust is easily entangled with the brush on the outer periphery of the rotary cleaning body. The rotary cleaning body is detachably attached to the suction chamber. When thread-like dust is entangled with the brush, the rotary cleaning body is usually removed from the suction chamber and the tangled thread-like dust is removed by hand. . After removing the dust, the rotary cleaner is again attached to the suction chamber.
[0004]
Incidentally, cleaning members such as blades and brush bristles included in the rotary cleaning body are generally provided inclined or curved in a predetermined direction with respect to the rotation axis. This is because tilting or curving improves dust scavenging efficiency and does not increase the running load. In addition, if the cleaning member rotates by receiving suction air, it is more susceptible to wind. Therefore, in the suction port body of a vacuum cleaner having such a rotary cleaning body, when the rotary cleaning body is attached to the suction port body, the rotational cleaning body is attached to the suction body of the rotary cleaning body when the horizontal direction of the rotary cleaning body is reversed. The cleaning efficiency was significantly reduced. For this reason, in the prior art, the rotational cleaning body is provided with directionality to prevent misassembly by changing the shape of the bearings provided at both ends of the rotational cleaning body to be asymmetrical.
[0005]
[Problems to be solved by the invention]
However, even with the above-described configuration, the user does not always attach appropriately by one operation, and thus there is a problem that the operability at the time of attachment is not good. In some cases, the rotary cleaning body may not be attached in an appropriate state because it is attached even if the left-right direction is reversed.
[0006]
The subject of this invention is providing the suction inlet body and vacuum cleaner of a vacuum cleaner which can attach a rotary cleaning body to a correct direction reliably.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problem, the invention described in claim 1 includes a suction port body having a suction chamber having a suction opening on a bottom surface, a rotatable and detachable attachment in the suction chamber, and a rotating shaft. A vacuum cleaner comprising: a rotary cleaning body having a cleaning member that protrudes inclined or curved in a predetermined direction on a peripheral surface of the rotary shaft; and a connection pipe that is provided in the suction port body and communicates with the suction chamber. In the suction port,
Provide a sticking surface to which the display unit displaying the mounting direction of the rotary cleaning body is attached to the suction chamber inner surface,
A step portion is formed on the upstream side of the affixing surface so as to protrude from the affixing surface to the suction chamber surface side .
[0008]
According to the above configuration, since the display unit displaying the mounting direction of the rotary cleaning body is provided on the inside surface of the suction chamber, the mounting work is performed while checking the contents of the display unit when the rotary cleaning body is mounted on the suction port body. As a result, it is possible to prevent the rotary cleaning body from being attached in the reverse direction.
[0010]
Moreover, since the step is formed on the upstream side of the nameplate mounting part, it is possible to prevent the suction air from directly hitting the end face of the nameplate affixing surface and prevent the nameplate from being peeled off by the suction air. it can.
[0011]
Furthermore, the invention according to claim 2 is a vacuum cleaner comprising the suction port body according to claim 1 .
[0012]
DETAILED DESCRIPTION OF THE INVENTION
Hereinafter, an embodiment of a vacuum cleaner provided with a suction port according to the present invention will be described with reference to the drawings.
[0013]
In FIG. 1, reference numeral 10 denotes a main body of an electric vacuum cleaner. A dust collection chamber 12 and an electric blower 11 for making the dust collection chamber 12 have a negative pressure are provided in the main body 10. A dust collection filter 13 is provided in the dust collection chamber 12.
[0014]
Reference numeral 15 denotes a hose whose one end is detachably connected to the electric vacuum cleaner main body 10. A hand control tube 16 is provided at the other end of the hose 15, and a handle portion 17 is provided at the hand control tube 16. . The handle portion 17 is provided with a hand operation portion 17A provided with operation switches (not shown).
[0015]
An extension pipe 18 is detachably connected to the hand operation pipe 16, and a suction port body 20 is detachably connected to a distal end portion of the extension pipe 18.
[0016]
As shown in FIGS. 2 to 6, the suction port body 20 is a connection in which a suction port main body 21 and an extension pipe 18 are detachably connected and provided at the rear part of the suction port main body 21 so as to be rotatable in the vertical direction. And a tube 22. A suction chamber 25 having a suction opening 23 extending left and right is formed on the bottom surface in the suction port body 21. The suction chamber 25 extends in the left-right direction, and a rotary cleaning body 26 is rotatably provided in the suction chamber 25. The rotary cleaning body 26 is detachably attached to the suction chamber 25 and is fixed in the suction chamber 25 by a fixing member 70 provided on the bottom surface of the suction port body 20.
[0017]
A blade 26A and a brush 26B are attached to the rotary cleaning body 26 along the axial direction thereof. The blades 26 </ b> A and the brushes 26 </ b> B are alternately arranged around the rotation center axis of the rotary cleaning body 26 at an interval of about 90 degrees, and are provided spirally along the rotation center axis of the rotary cleaning body 26 (see FIG. 9). ing. The blade 26A is formed in a curved shape (curved in a plane perpendicular to the rotation center axis of the rotary cleaning body 26) in order to efficiently receive the suction air.
[0018]
The inlet main body 21 has an air duct (not shown) provided at the rear part in the main body case 30 and a rotary pipe 50 that is rotatably attached to the outer periphery of the air duct. The rotary tube 50 is swingable in the direction of arrow A in FIG. The suction chamber 25 communicates with the connection pipe 22 via the air duct pipe and the rotary pipe 50.
[0019]
A pair of left and right intake holes 31, 31 are formed in the front portion of the main body case 30, and the intake holes 31, 31 are formed in a slit shape extending in the left-right direction, and the suction chamber is interposed via the intake holes 31, 31. 25 communicates with the outside air. Due to the suction air B sucked from the suction holes 31, 31, the rotary cleaning body 26 rotates clockwise as indicated by an arrow C in FIG. 7.
[0020]
A seal member S extending in the left-right direction is provided in front of the suction opening 23 at the bottom of the main body case 30. Further, a recess 32 is formed at the bottom of the main body case 30 behind the suction opening 23, and a cleaning means 36 having raised hairs 36 </ b> A is attached in the recess 32.
[0021]
A front wheel R1 and a rear wheel R2 are provided on the front and rear of the bottom of the main body case 30, and the bottom is separated from the surface to be cleaned M by a predetermined distance. Further, the width of the main body case 30 in the front-rear direction becomes narrower toward the left and right ends.
[0022]
7 is a view when only the upper case 30A of the main body case 30 is viewed from the inside, and FIG. 8 is a bottom view of the suction port body 20 when the rotary cleaning body 26 is removed. As shown in FIG. 7, the nameplate 100 is attached to a portion 30 </ b> B that defines the suction chamber 25 in the upper case 30 </ b> A. The portion 30 </ b> B constitutes the upper inner surface of the suction chamber 25, and the nameplate 100 is provided on the inner surface of the suction chamber 25. Moreover, the nameplate 100 is attached to the location which can be easily visually recognized at the time of rotary cleaning body attachment.
[0023]
The nameplate 100 clearly indicates the mounting direction of the rotary cleaning body 26. In the present embodiment, as shown in FIG. 4, the left end part 26C of the rotary cleaning body 26 is colored black and the right end part 26D is colored gray. Then, when the suction port body 20 is arranged as shown in FIG. 8 and the rotary cleaning body 26 is mounted in the suction chamber 25, the black parts are placed on the left side of the rotary cleaning body 26 and the gray parts are placed on the right side. In addition, a note about the mounting direction of the rotary cleaning body 26 is specified on the nameplate 100.
[0024]
The parts 26C and 26D at the left and right end portions of the rotary cleaning body 26 are not limited to black and gray, and may be other colors as long as they are different colors. In this case, the nameplate 100 clearly indicates the contents according to the colors of the parts 26C and 26D. In addition, the nameplate 100 may include not only words such as “black” and “gray” but also a picture or symbol colored in black or gray.
[0025]
As a method of attaching the nameplate 100 to the upper case 30A, in this embodiment, as shown in FIG. 6, a recess 101 is formed on the inner surface of the upper case 30A, and the nameplate 100 is fitted in the recess 101. In this case, the left peripheral portion of the peripheral portion of the recess 101 is on the upstream side of the nameplate attachment portion, and constitutes a step portion. If comprised in this way, since it can avoid that the suction wind B hits directly the end surface of the sticking surface of the nameplate 100, it can prevent that the suction wind B acts in the direction which peels the nameplate 100. FIG.
[0026]
Next, an operation procedure when the rotary cleaning body 26 is detached from the suction chamber 25 and the rotary cleaning body 26 is attached to the suction chamber 25 in the suction port body 20 having the above-described configuration will be described.
[0027]
First, the user removes the fixing member 70 with the suction port body 20 in a state in which the bottom surface faces upward as shown in FIG. When the fixing member 70 is removed, the rotary cleaning body 26 can be easily removed from the suction chamber 25 by lifting the gray colored component 26D side.
[0028]
Then, dust and the like are removed from the removed rotary cleaning body 26 and the rotary cleaning body 26 is attached to the suction chamber 25 again. In this case, since the nameplate 100 is provided on the inner surface of the suction chamber 25 at a location that can be easily visually recognized when the rotary cleaning body is attached as shown in FIG. 8, the user sees the contents specified on the nameplate 100. Then, after confirming that there is no mistake in the mounting direction of the rotary cleaning body 26, the rotary cleaning body 26 is set in the suction chamber 25. Finally, the fixing member 70 is attached to fix the rotary cleaning body 26 in the suction chamber 25.
[0029]
In this way, the rotary cleaning body can be reliably attached in an appropriate direction. In addition, since the display portion is provided on the inner surface of the suction chamber, the display portion does not directly face the surface to be cleaned, so that the display portion is not scraped or peeled off due to contact with the surface to be cleaned during cleaning. In addition, the display unit can be reliably seen in a state where the rotary cleaning body is removed.
[0030]
Next, another method for attaching the nameplate 100 to the upper case 30A will be described. In this method, as shown in FIG. 10, the nameplate 100 is fixed on the inner surface of the upper case 30 </ b> A, and further, on the inner surface of the upper case 30 </ b> A, the upstream side of the nameplate 100 (upstream side along the suction air B) A protrusion (rib) 102 protruding toward the suction chamber inner surface is provided. The ridge 102 is integrally formed with the upper case 30A. In this case, the protrusion 102 is on the upstream side of the nameplate mounting portion, and constitutes a stepped portion. Even in such a configuration, the suction air B can be prevented from directly hitting the end face of the affixing surface of the nameplate 100, so that the suction air B can be prevented from acting in the direction in which the nameplate 100 is peeled off. In addition, the protrusion 102 can be provided not only on the upstream side of the nameplate 100 but also in the vicinity of both end portions of the nameplate 100.
[0031]
Instead of the nameplate 100, a symbol, a picture, a wording, or the like indicating the mounting direction of the rotary cleaning body 26 may be directly stamped on the inner surface of the upper case 30A. In addition, a seal member in which a symbol, a picture, a wording, or the like indicating the mounting direction of the rotary cleaning body 26 is clearly attached can be attached to the inner surface of the upper case 30A. In the case of a seal member, there is a risk of peeling off, but the mounting method is very simple.
[0032]
【The invention's effect】
As described above, according to the first aspect of the present invention, since the display unit displaying the mounting direction of the rotary cleaning body is provided on the suction chamber inner surface, when the rotary cleaning body is mounted on the suction port body, the display is displayed. The attachment work is performed while checking the contents of the part, and thus the rotary cleaning body can be attached in the correct orientation.
[0033]
Further, the nameplate can be prevented from being peeled off by the suction air.
[0034]
According to invention of Claim 2, the vacuum cleaner which can acquire the effect of Claim 1 is realizable.
[Brief description of the drawings]
FIG. 1 is a perspective view showing an embodiment of a vacuum cleaner according to the present invention.
FIG. 2 is a plan view showing a suction port body according to the present invention.
FIG. 3 is a front view of the suction port body shown in FIG. 2;
4 is a bottom view of the suction port body of FIG. 2;
5 is a perspective view of the suction port body of FIG. 2. FIG.
6 is a partial cross-sectional view showing an internal configuration of the suction port body of FIG. 2;
FIG. 7 is a view of the upper case as viewed from the inside.
FIG. 8 is a bottom view of the suction port body when the rotary cleaning body is removed.
FIG. 9 is a perspective view showing a state where the rotary cleaning body is attached to and detached from the suction chamber.
FIG. 10 is a view showing another example of the nameplate attachment method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 10 Vacuum cleaner main body 20 Suction port body 21 Suction port main body 22 Connection pipe 23 Suction opening 25 Suction chamber 26 Rotary cleaning body 26A Blade 26B Brush 30 Main body case 30A Upper case 31 Intake hole 100 Name plate 101 Recess 102 Projection

Claims (2)

A suction port body formed with a suction chamber having a suction opening on the bottom surface, and is rotatably and detachably mounted in the suction chamber, and is inclined or curved in a predetermined direction on the rotating shaft and the peripheral surface of the rotating shaft. In a suction port body of a vacuum cleaner comprising a rotary cleaning body having a cleaning member and a connection pipe provided in the suction port body and communicating with the suction chamber,
Provide a sticking surface to which the display unit displaying the mounting direction of the rotary cleaning body is attached to the suction chamber inner surface,
A suction port body for a vacuum cleaner, wherein a stepped portion is formed on the upstream side of the affixing surface so as to protrude from the affixing surface toward the suction chamber surface . A vacuum cleaner comprising the suction port according to claim 1.

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