[0001] The present invention relates to a vacuum cleaner, particularly but not exclusively
to a vacuum cleaner which separates and collects dust from air sucked in by suction
force of a fan motor and has a suction head closely adhered to a surface to be cleaned
and sucking air.
[0002] In general, a vacuum cleaner includes a fan motor generating suction force, a suction
head closely adhered to a surface to be cleaned and sucking in air by the suction
force of the fan motor, and a dust collector separating dust from the air sucked through
the suction head and collecting the separated dirt, and thus performing cleaning.
[0003] The fan motor and the dust collector may be accommodated in a main body, and the
suction head may be connected to the main body by an extension pipe and may move to
positions requiring cleaning on the surface to be cleaned.
[0004] The suction head may include a bottom plate provided with a suction hole, a brush
base provided with brushes and preventing damage, such as scratches, to the bottom
plate or the surface to be cleaned by friction between the bottom plate and the surface
to be cleaned, and a cover covering the bottom plate and the brush base and forming
the external appearance of the suction head.
[0005] The brush base may move upward and downward, as needed. Therefore, the brush base
may move downward if the vacuum cleaner cleans a relatively hard surface, such as
a hard floor, and move upward if the vacuum cleaner cleans a relatively soft surface,
such as a carpet. However, since the brush base is covered by the cover and is thus
not exposed to the outside, detection of the position of the brush base is not easy.
[0006] Further, when cleaning is performed while moving the suction head forward, operation
of the suction head is not easy due to resistance of the surface to be cleaned. That
is, large operation force is required to move the suction head forward. Further, when
cleaning is performed while moving the suction head backward, if the rear end of the
suction head is lifted up, the suction hole is not closely adhered to the surface
to be cleaned, and thus suction force may be lowered.
[0007] WO03039316 A1 describes a vacuum cleaner according to the preamble of independent claim 1 having
a floor tool for use in vacuum cleaning floor surfaces comprising a sole plate for
engaging with a floor surface, a supporting body for the sole plate having means for
allowing the body to ride along the floor surface and an outlet conduit for coupling
to a wand of a vacuum cleaner. The outlet conduit is pivotally mounted to the supporting
body at a position which is substantially above the sole plate so as to reduce the
risk of the sole plate being 'pealed' from a floor surface during a backwards stroke.
[0008] NL 7907613 describes a suction head as used for a vacuum according to independent claim 9 having
a socket for the suction pipe which can be tilted in position, and a floor support,
such as a wheel, roller or such like.
[0009] The foregoing described problems may be overcome and/or other aspects may be achieved
by one or more embodiments of a vacuum cleaner that may have a suction head which
may be configured such that the position of an upward and downward movable brush base
may be recognized from the outside.
[0010] One or more embodiments provide a vacuum cleaner having a suction head which may
be configured such that operation force of the suction head may be reduced when the
suction head moves forward.
[0011] One or more embodiments provide a vacuum cleaner that may have a suction head which
may be configured such that suction force of the suction head may not be reduced when
the suction head moves backward.
[0012] Additional aspects and/or advantages of one or more embodiments will be set forth
in part in the description which follows and, in part, will be apparent from the description,
or may be learned by practice of one or more embodiments of disclosure. One or more
embodiments are inclusive of such additional aspects.
[0013] In accordance with one aspect of the present invention, there is provided a vacuum
cleaner according to claim 1. The vacuum cleaner includes a main body, a fan motor
provided within the main body and generating suction force, a dust collector provided
within the main body and collecting dust, an extension pipe extended from the main
body, and a suction head including a cover combined with the extension pipe, and a
bottom plate provided with a suction hole through which air may be sucked from a surface
to be cleaned and rotatably combined with the cover, and a brush base comprising brushes
and movable upward and downward between the cover and the bottom plate, wherein the
bottom plate may be rotated in a first direction relative to the cover when the suction
head moves forward, and may be rotated in a second direction opposite the first direction
relative to the cover when the suction head moves backward, wherein the brush base
may include indicating parts exposed to the outside of the cover and forming at least
a portion of the external appearance of the suction head, and wherein the indicating
parts may be formed at corners of the brush base.
[0014] The first direction may be the counterclockwise direction and the second direction
may be the clockwise direction, as seen from a direction in which the front end of
the suction head is located at the left and the rear end of the suction head is located
at the right.
[0015] A rotary shaft may be formed on one of the cover and the bottom plate, and a rotary
shaft receiving part in which the rotary shaft is accommodated so as to be freely
rotatable may be formed on the other of the cover and the bottom plate.
[0016] The bottom plate may be rotated in the first direction relative to the cover by friction
with the surface to be cleaned, when the suction head moves forward.
[0017] The bottom plate may be rotated in the second direction relative to the cover by
reaction force of the surface to be cleaned applied to the front end of the bottom
plate or the weight of the bottom plate, if the cover is rotated in a direction in
which the rear end of the cover is separated from the surface to be cleaned when the
suction head moves backward.
[0018] The suction hole may include a suction space in which air flows, and a diaphragm
part protruding toward the cover to form the suction space.
[0019] The diaphragm part may include a sealing part closely adhered to an inlet of a suction
duct to guide the sucked air to the inside of the suction duct without leaking to
the outside of the suction duct, and the sealing part may include a curved part curved
so as to be closely adhered to the inlet of the suction duct in spite of a rotation
of the bottom plate.
[0020] Stopper protrusions interfering with the cover to limit the rotating range of the
bottom plate may be formed on the diaphragm part.
[0021] In accordance with another aspect of the present invention, there is provided a vacuum
cleaner according to claim 9. The vacuum cleaner may include a main body, a fan motor
provided within the main body and generating suction force, a dust collector provided
within the main body and collecting dust, an extension pipe extended from the main
body, and a suction head including a cover combined with the extension pipe, a bottom
plate provided with a suction hole through which air may be sucked from a surface
to be cleaned and combined with the cover, and a brush base including brushes and
movable upward and downward between the cover and the bottom plate, wherein the brush
base may include indicating parts exposed to the outside of the cover and forming
at least a portion of the external appearance of the suction head, and wherein, the
indicating parts may be formed at corners of the brush base.
[0022] The cover may include cutoff slots in which the indicating parts are accommodated.
[0023] The indicating parts may be movable upward and downward in the cutoff slots.
[0024] The suction head may be switched to one of a first mode in which the brush base moves
maximally upward closest to the cover so that the bottom plate is closely adhered
to the surface to be cleaned, and a second mode in which the brush base moves maximally
downward closest to the bottom plate so that the brushes are closely adhered to the
surface to be cleaned.
[0025] A height difference between the indicating parts and the cover may not be generated
in the first mode, and a height difference between the indicating parts and the cover
may be generated in the second mode.
[0026] The vacuum cleaner may further include a lever member rotatably provided to move
the brush base upward and downward and including pressing protrusions pressing the
brush base and an operating member to rotate the lever member.
[0027] The vacuum cleaner may further include elastic members elastically supporting the
brush base.
[0028] The application also describes that a vacuum cleaner may include a main body, a fan
motor provided within the main body and generating suction force, a dust collector
provided within the main body and collecting dust, an extension pipe extended from
the main body, and a suction head including a cover combined with the extension pipe,
a bottom plate provided with a suction hole through which air may be sucked from a
surface to be cleaned and rotatably combined with the cover, and a brush base that
may include brushes and indicating parts exposed to the outside of the cover and forming
at least a portion of the external appearance of the suction head and movable upward
and downward between the cover and the bottom plate, wherein the suction head may
be switched to one of a first mode in which the brush base moves maximally upward
closest to the cover so that the bottom plate is closely adhered to the surface to
be cleaned, and a second mode in which the brush base moves maximally downward closest
to the bottom plate so that the brushes are closely adhered to the surface to be cleaned,
and the bottom plate may be rotated in a first direction relative to the cover when
the suction head moves forward, and may be rotated in a second direction opposite
the first direction relative to the cover when the suction head moves backward, in
the first mode.
[0029] These and/or other aspects will become apparent and more readily appreciated from
the following description of embodiments, taken in conjunction with the accompanying
drawings of which:
FIG. 1 is a perspective view illustrating a vacuum cleaner in accordance with one
or more embodiments;
FIG. 2 is a view illustrating a suction head of a vacuum cleaner according to one
or more embodiments, such as the vacuum cleaner of FIG. 1, in a state in which the
suction head is in a first mode;
FIG. 3 is an exploded perspective view of a suction head according to one or more
embodiments, such as the suction head of the vacuum cleaner of FIG. 2, as seen from
one angle;
FIG. 4 is an exploded perspective view of a suction head according to one or more
embodiments, such as the suction head of the vacuum cleaner of FIG. 2, as seen from
another angle;
FIG. 5 is a cross-sectional view of a suction head according to one or more embodiments,
such as the suction head of the vacuum cleaner of FIG. 2 taken along the line I-I
of FIG. 2;
FIG. 6 is a view illustrating rotation of a bottom plate of a suction head according
to one or more embodiments, such as the suction head of the vacuum cleaner of FIG.
2 when the suction head moves forward;
FIG. 7 is a view illustrating rotation of a bottom plate of a suction head according
to one or more embodiments, such as the suction head of the vacuum cleaner of FIG.
2 when the suction head moves backward;
FIG. 8 is a cross-sectional view of a suction head according to one or more embodiments,
such as the suction head of the vacuum cleaner of FIG. 2 taken along the line II-II
of FIG. 2;
FIG. 9 is a view illustrating a suction head according to one or more embodiments,
such as the suction head of the vacuum cleaner of FIG. 1, in a state in which the
suction head is in a second mode; and
FIG. 10 is a cross-sectional view of a suction head according to one or more embodiments,
such as the suction head of the vacuum cleaner of FIG. 9 taken along the line III-III
of FIG. 9.
[0030] Reference will now be made in detail to one or more embodiments, illustrated in the
accompanying drawings, wherein like reference numerals refer to like elements throughout.
[0031] FIG. 1 is a perspective view illustrating a vacuum cleaner in accordance with one
or more embodiments.
[0032] With reference to FIG. 1, a vacuum cleaner 1 in accordance with the embodiment of
the present invention may include a main body 20 in which a fan motor 21 that may
generate suction force and a dust collector 22 that may separate dust from sucked
air and may collect the separated dust may be accommodated, a suction head 100 mat
may suck air from a surface to be cleaned, and an extension pipe 10 that may connect
the suction head 100 to the main body 20 to guide the air sucked through the suction
head 100 to the main body 20.
[0033] The dust collector 22 may be of a cyclone type which separates dust from sucked air
using centrifugal force, or a dust bag type which filters out dust from sucked air
by causing air to pass through a filter bag. Otherwise, the dust collector 22 may
be of one of various known types which may separate dust from sucked air. Purified
air from which dust is separated through the dust collector 22 may be discharged to
the outside of the main body 20.
[0034] The extension pipe 10 may include an extension pipe 12 having a designated rigidity,
an extension hose 13 connecting the extension pipe 12 to the main body 20 and having
flexibility, a connector 11 connecting the suction head 100 to the extension pipe
12, and a handle 14. The connector 11 may be combined with the suction head 100 so
as to be rotatable by a designated angle, and may be provided with wheels 15 (see
FIG. 2) to facilitate movement of the suction head 100.
[0035] The suction head 100 may be closely adhered to a surface to be cleaned and may serve
to suck air from the surface to be cleaned. The suction head 100 of the vacuum cleaner
1 in accordance with one or more embodiments may be switched to one of a first mode
and a second mode so as to possibly prevent damage due to friction with the surface
to be cleaned or to possibly increase suction force according to kind, material and
state of the surface to be cleaned.
[0036] The first mode is a mode to possibly increase suction force if the surface to be
cleaned is formed of a soft fabric, such as a carpet, and the second mode is a mode
to possibly prevent damage, such as scratches, to the suction head 100 or the surface
to be cleaned due to friction with the surface to be cleaned if the surface to be
cleaned is formed of a hard material, such as a floor.
[0037] Further, the suction head 100 in accordance with the embodiment of the present invention
may be configured such that a user may recognize whether or not the suction head 100
is currently in the first mode or the second mode.
[0038] The suction head 100 in accordance with one or more embodiments may be configured
such that operation of the suction head 100 may be enhanced when the suction head
100 moves forward and a decrease in suction force of the suction head 100 may be prevented
when the suction head 100 moves backward, in the first mode used on carpet, etc.
[0039] Hereinafter, a configuration of the suction head 100 of the vacuum cleaner 10 in
accordance with one or more embodiments will be described in detail.
[0040] FIG. 2 is a view illustrating a suction head of a vacuum cleaner according to one
or more embodiments, such as the vacuum cleaner of FIG. 1, in a state in which the
suction head is in the first mode, FIG. 3 is an exploded perspective view of a suction
head according to one or more embodiments, such as the suction head of the vacuum
cleaner of FIG. 2, as seen from one angle, FIG. 4 is an exploded perspective view
of a suction head according to one or more embodiments, such as the suction head of
the vacuum cleaner of FIG. 2, as seen from another angle, FIG. 5 is a cross-sectional
view of a suction head according to one or more embodiments, such as the suction head
of the vacuum cleaner of FIG. 2 taken along the line I-I of FIG. 2, FIG. 6 is a view
illustrating rotation of a bottom plate of a suction head according to one or more
embodiments, such as the suction head of the vacuum cleaner of FIG. 2 when the suction
head moves forward, FIG. 7 is a view illustrating rotation of a bottom plate of a
suction head according to one or more embodiments, such as the suction head of the
vacuum cleaner of FIG. 2 when the suction head moves backward, FIG. 8 is a cross-sectional
view of a suction head according to one or more embodiments, such as the suction head
of the vacuum cleaner of FIG. 2 taken along the line II-II of FIG. 2, FIG. 9 is a
view illustrating a suction head according to one or more embodiments, such as the
suction head of the vacuum cleaner of FIG. 1, in a state in which the suction head
is in the second mode, and FIG. 10 is a cross-sectional view of a suction head according
to one or more embodiments, such as the suction head of the vacuum cleaner of FIG.
9 taken along the line III-III of FIG. 9.
[0041] With reference to FIGS. 2 to 10, the suction head 100 may include a cover 200 combined
with the connector 11, a bottom plate 600 provided with a suction hole 640 through
which air may be sucked from the surface to be cleaned and rotatably combined with
the cover 200, a brush base 400 including brushes 450 and provided between the cover
200 and the bottom plate 600 so as to be movable upward and downward, a lever member
300 moving the brush base 400, and elastic members 500 elastically supporting the
brush base 400.
[0042] The cover 200 may be disposed above the lever member 300, the brush base 400, the
elastic members 500 and the bottom plate 600, and may form most of the external appearance
of the suction head 100.
[0043] A first rotary shaft 230 and a second rotary shaft receiving part 240 may be formed
on the cover 200, and a first rotary shaft receiving part 620 and a second rotary
shaft 610 may be formed on the bottom plate 600.
[0044] The first rotary shaft 230 may be accommodated in the first rotary shaft receiving
part 620 so that the first rotary shaft 230 may be freely rotatable, and the second
rotary shaft 610 may be accommodated in the second rotary shaft receiving part 240
so that the second rotary shaft 610 may be freely rotatable.
[0045] The first rotary shaft 230 and the second rotary shaft 610 may be formed collinearly.
[0046] That is, an extension line of the first rotary shaft 230 and an extension line of
the second rotary shaft 610 may be the same straight line, and thus may form one rotary
shaft. Through such a configuration, the bottom plate 600 may be rotated relative
to the cover 200 by external force.
[0047] Guide bars 260 may be formed on the cover 200, and guide holes 430 may be formed
on the brush base 400. The guide bars 260 may protrude from the cover 200 toward the
bottom plate 600, and may pass through the guide holes 430. Through such a configuration,
the brush base 400 may be supported by the guide bars 260 and may move upward and
downward between the cover 200 and the bottom plate 600.
[0048] The brush base 400 may be elastically supported by the elastic members 500. The elastic
members 500 may be coil springs, for example. Elastic member mounting parts 440 may
be formed on the brush base 400, and mounting protrusions 630 may be formed on the
bottom plate 600. The elastic member mounting part 440 may be formed on the surface
of the brush base 400 opposite the guide holes 430.
[0049] The elastic members 500 may be mounted between the elastic member mounting parts
440 and the mounting protrusions 630, and be supported by the guide bars 260 passing
through the guide holes 430.
[0050] The position of the brush base 400 elastically biased by elastic force of the elastic
members 500 may be the position of the brush base 400 in the first mode of the suction
head 100. Here, the position of the brush base 400 in the first mode of the suction
head 100 may be the position of the brush base 400 which may move upward toward the
cover 200.
[0051] The brush base 400 may move to the position of the brush base 400 in the second mode
of the suction head 100 by the lever member 300. Here, the position of the brush base
400 in the second mode of the suction head 100 may be the position of the brush base
400 which may move downward toward the bottom plate 600.
[0052] A third rotary shaft 310 may be formed on the lever member 300 and a third rotary
shaft receiving part 250 may be formed on the cover 200. The third rotary shaft 310
may be accommodated in the third rotary shaft receiving part 250 so that the third
rotary shaft 310 may be freely rotatable.
[0053] An operating member 320 rotating the lever member 300 may be formed on the lever
member 300, and an opening 220 exposing the operating member 320 to the outside may
be formed on the cover 200. Therefore, a user may rotate the lever member 300 by pressing
the operating member 320.
[0054] When the user presses the operating member 320, the lever member 300 may be rotated
about the third rotary shaft 310. The operating member 320 may include a first operation
part 321 to rotate the lever member 300 in one direction, and a second operation part
322 to rotate the lever member 300 in the other direction.
[0055] Pressing protrusions 330 to press the brush base 400 may be formed on the lever member
300. The pressing protrusions 330 may be accommodated in active parts 490 of the brush
base 400.
[0056] As shown in FIGS. 8 and 10, a first support surface 491, an inclined surface 492
and a second support surface 493 may be continuously formed on the brush base 400.
The first support surface 491 may be formed more distant from the third rotary shaft
310 than the second support surface 493, and the inclined surface 492 may connect
the first support surface 491 and the second support surface 493. The first support
surface 491, the inclined surface 492 and the second support surface 493 may be pressed
by the pressing protrusions 330.
[0057] FIG. 8 illustrates the first mode of the suction head 100, i.e., a case in which
the brush base 400 is located at a position moving upward toward the cover 200, and
the pressing protrusions 330 may be supported by the first support surface 491 being
most distant from the third rotary shaft 310. Here, the brush base 400 may be elastically
supported by the elastic members 500.
[0058] FIG. 10 illustrates the second mode of the suction head 100, i.e., a case in which
the brush base 400 is located at a position moving downward toward the bottom plate
600. As shown in FIG. 10, when a user presses the second operation part 322 in the
downward direction (direction D), the lever member 300 may be rotated about the third
rotary shaft 310.
[0059] At this time, the pressing protrusions 330 may also be rotated about the third rotary
shaft 310, and sequentially may press the first support surface 491, the inclined
surface 492 and the second support surface 493. When the pressing protrusions 330
finally press the second support surface 493, the state of the brush base 400 may
be fixed by pressing force of the pressing protrusions 330 against elastic force of
the elastic members 500. Through such an operation, the suction head 100 may be switched
from the first mode to the second mode.
[0060] With reference to FIG. 8, when a user presses the first operation part 321 in the
downward direction (direction D) in the second mode of the suction head 100, the lever
member 300 may be rotated about the third rotary shaft 310 and the pressing protrusions
330 may also be rotated about the third rotary shaft 310.
[0061] As the pressing protrusions 330 are rotated, the brush base 400 may be raised by
elastic force of the elastic members 500, and the pressing protrusions 330 may be
supported by the first support surface 491. Thereby, the brush base 400 may be fixed.
[0062] Through such an operation, the suction head 100 may be switched from the second mode
to the first mode.
[0063] A suction hole 640 through which air is sucked from the surface to be cleaned may
be formed on the bottom plate 600. The suction hole 640 may include a suction space
641 in which air flows, and a diaphragm part 642 protruding toward the cover 200 to
form the suction space 641.
[0064] Guide channels 650 to guide air to the suction hole 640 may be formed on the lower
surface of the bottom plate 600. The guide channels 650 may be formed in the lengthwise
direction of the bottom plate 600 at both sides of the suction hole 640.
[0065] A through hole 410 through which the suction hole 640 may pass may be formed on the
brush base 400, and a suction duct 210 to guide air sucked through the suction hole
640 to the extension pipe 10 may be formed on the cover 200. The suction hole 640
may pass through the through hole 410 and be connected to the suction duct 210.
[0066] Further, as shown in FIGS. 5 to 7, the diaphragm part 642 may include a sealing part
643 closely adhered to an inlet 211 of the suction duct 210 to guide sucked air to
the inside of the suction duct 210 instead of to the outside of the suction duct 210.
Here, the sealing part 643 may include a curved part 644 curved gently.
[0067] Through such a configuration, even if the bottom plate 600 is rotated relative to
the cover 200, the diaphragm part 642 may be closely adhered to the inlet 211 of the
suction duct 210, and thus air sucked through the suction hole 640 may be guided to
the inside of the suction duct 210 without leaking.
[0068] Further, stopper protrusions 645 limiting the rotating range of the bottom plate
600 may be formed on the diaphragm part 642. The stopper protrusions 645 may interfere
with the cover 200, thus limiting the rotating range of the bottom plate 600. In contrast,
the stopper protrusions 645 may be formed on the cover 200 so as to interfere with
the bottom plate 600.
[0069] The brush base 400 may include the brushes 450, a front blocking member 460 and a
rear blocking member 470.
[0070] The lowest point of the brushes 450, the front blocking member 460 and the rear blocking
member 470 may be located above the lowest point of the bottom plate 600 in the first
mode of the suction head 100 in which the brush base 400 moves upward, and may be
located below the lowest point of the bottom plate 600 in the second mode of the suction
head 100 in which the brush base 400 moves downward.
[0071] Therefore, when the brush head 100 is in the first mode, the bottom plate 300 may
contact the surface to be cleaned, and when the brush head 100 is in the second mode,
the brush 450, the front blocking member 460 and the rear blocking member 470 may
contact the surface to be cleaned and the bottom plate 300 may be separated from the
surface to be cleaned.
[0072] The front blocking member 460 and the rear blocking member 470 may seal the circumference
of the suction hole 640 of the bottom plate 600 and may increase suction force in
the second mode of the suction head 100 in which the brush base 400 moves downward,
and may be formed of a soft material so that dust having a slightly large particle
size may pass through the front blocking member 460 and the rear blocking member 470.
The front blocking member 460 and the rear blocking member 470 may have passage holes
461 and 471 through which air flows into the suction hole 640.
[0073] Next, with reference to FIGS. 6 and 7, rotation of the bottom plate 600 of the suction
head 100 of the vacuum cleaner in accordance with one or more embodiments relative
to the cover 200 will be described in more detail.
[0074] In FIGS. 6 and 7, F means the forward movement direction of the suction head 100,
and R means the backward movement direction of the suction head 100. Further, A means
the rotation direction of the bottom plate 600 relative to the cover 200 when the
suction head 100 moves forward, and B means the rotation direction of the bottom plate
600 relative to the cover 200 when the suction head 100 moves backward.
[0075] As shown in FIG. 6, when the brush base 400 moves upward and the suction head 100
moves forward (F) in the first mode of the bottom plate 600 in which the bottom plate
600 directly contacts the surface to be cleaned, the bottom plate 600 may be rotated
in the direction A about the first rotary shaft 230 and the second rotary shaft 610
relative to the cover 200.
[0076] The reason for rotation of the bottom plate 600 relative to the cover 200 is that
the bottom plate 600 is combined with the cover 200 so as to be freely rotatable and
friction resistance from the surface to be cleaned is applied to the bottom plate
600 when the suction head 100 moves forward, as described above.
[0077] Through rotation of the bottom plate 600, the rear end of the bottom plate 600 may
be slightly separated from the surface to be cleaned and friction resistance of the
surface to be cleaned applied to the bottom plate 600 mat be reduced. Therefore, operation
force required to move the suction head 100 forward may be reduced.
[0078] As shown in FIG. 7, if the cover 200 is rotated by a designated angle θ relative
to the surface to be cleaned when the brush base 400 moves upward and the suction
head 100 moves backward (R) in the first mode of the bottom plate 600 in which the
bottom plate 600 directly contacts the surface to be cleaned, the bottom plate 600
may be rotated in the direction B about the first rotary shaft 230 and the second
rotary shaft 610 relative to the cover 200.
[0079] The reason for rotation of the bottom plate 600 relative to the cover 200 is that
the bottom plate 600 is combined with the cover 200 so as to be freely rotatable and,
when the cover 200 is rotated by a designated angle θ relative to the surface to be
cleaned, reaction force may be applied to the front end of the bottom plate 600 by
the surface to be cleaned. Further, even if the cover 200 is rotated, the bottom plate
600 may not be rotated due to the weight thereof, and rotation of the bottom plate
600 relative to the cover 200 may be carried out.
[0080] Even if the cover 200 is rotated in a direction in which the rear end of the cover
200 is separated from the surface to be cleaned, as described above, the bottom plate
600 may be rotated in the opposite direction relative to the cover 200 and may be
closely adhered to the surface to be cleaned, and thus lowering of suction force may
be prevented.
[0081] Next, with reference to FIGS. 2 to 4 and FIG. 9, a mode recognition structure of
the suction head 100 of the vacuum cleaner in accordance with the embodiment of the
present invention will be described.
[0082] As described above, the suction head 100 of the vacuum cleaner in accordance with
one or more embodiments may be switched to one of the first mode in which the brush
base 400 moves upward toward the cover 200 and the second mode in which the brush
base 400 moves downward toward the bottom plate 600.
[0083] Here, the brush base 400 may include indicating parts 480 exposed to the outside
of the cover 200 and forming at least a portion of the external appearance of the
suction head 100. Cutoff slots 270 accommodating the indicating parts 480 may be formed
on the cover 200, and the indicating parts 480 may move upward and downward within
the cutoff slots 270.
[0084] The indicating parts 480 may protrude upward from regions of the brush base 400,
and for example, in one or more embodiments, the indicating parts 480 may be formed
at corners of the brush base 400.
[0085] As shown in FIG. 2, the indicating parts 480 may be provided so as not to have a
height difference with the cover 200 in the first mode of the suction head 100. On
the other hand, as shown in FIG. 9, the indicating parts 480 may be provided so as
to have a height difference H with the cover 200 in the second mode of the suction
head 100. Therefore, a user may recognize the current position of the brush base 400
and the mode of the suction head 100.
[0086] As is apparent from the above description, in a vacuum cleaner in accordance with
one or more embodiments, the position of a brush base in which brushes are installed
may be recognized from the outside.
[0087] Further, when a suction head moves forward, operation force of the suction head may
be reduced.
[0088] Further, when the suction head moves backward, lowering of suction force may be prevented
even if the rear end of the suction head is lifted upward from a surface to be cleaned.
[0089] While aspects of the present invention have been particularly shown and described
with reference to differing embodiments thereof, it should be understood that these
embodiments should be considered in a descriptive sense only and not for purposes
of limitation. Descriptions of features or aspects within each embodiment should typically
be considered as available for other similar features or aspects in the remaining
embodiments. Suitable results may equally be achieved if the described techniques
are performed in a different order and/or if components in a described system, architecture,
device, or circuit are combined in a different manner and/or replaced or supplemented
by other components or their equivalents.
[0090] Thus, although a few embodiments have been shown and described, with additional embodiments
being equally available, it would be appreciated by those skilled in the art that
changes may be made in these embodiments without departing from the principles of
the invention, the scope of which is defined in the claims.
1. A vacuum cleaner (1) comprising:
a main body (20);
a fan motor (21) provided within the main body (20) for generating suction;
a dust collector (22) provided within the main body (20) for collecting dust;
an extension pipe (10) extended from the main body (20); and
a suction head (100) comprising a cover (200) combined with the extension pipe (10),
a bottom plate (600) provided with a suction hole (640) through which air is sucked
in from a surface to be cleaned and rotatably combined with the cover (200), and a
brush base (400) comprising brushes (450) and movable upward and downward between
the cover (200) and the bottom plate (600),
wherein the bottom plate (600) is arranged to rotate in a first direction (A) relative
to the cover (200) when the suction head (100) moves forward, and is arranged to rotate
in a second direction (B) opposite to the first direction (A) relative to the cover
(200) when the suction head (100) moves backward, characterised in that the brush base (400) comprises indicating parts (480) exposed to the outside of the
cover (200) and forming at least a portion of the external appearance of the suction
head (100), and
wherein the indicating parts (480) are formed at corners of the brush base (400).
2. The vacuum cleaner (1) according to claim 1, wherein the first direction (A) is the
counterclockwise direction and the second direction (B) is the clockwise direction,
as seen from a direction in which the front end of the suction head (100) is located
at the left and the rear end of the suction head (100) is located at the right.
3. The vacuum cleaner (1) according to claim 1 or 2, wherein:
a rotary shaft (230,610) is formed on one of the cover (200) and the bottom plate
(600); and
a rotary shaft receiving part (240,620) in which the rotary shaft (230,610) is accommodated
so as to be freely rotatable is formed on the other of the cover (200) and the bottom
plate (600).
4. The vacuum cleaner (1) according to any one of the preceding claims, wherein the bottom
plate (600) is rotated in the first direction (A) relative to the cover (200) by friction
with the surface to be cleaned, when the suction head (100) moves forward.
5. The vacuum cleaner (1) according to any one of the preceding claims, wherein the bottom
plate (600) is rotated in the second direction (B) relative to the cover (200) by
reaction force of the surface to be cleaned applied to the front end of the bottom
plate (600) or the weight of the bottom plate (600) when the suction head (100) moves
backward.
6. The vacuum cleaner (1) according to any one of the preceding claims, wherein the suction
hole (640) comprises a suction space (641) in which air flows, and a diaphragm part
(642) protruding toward the cover (200) to form the suction space (641).
7. The vacuum cleaner (1) according to claim 6, wherein:
the diaphragm part (642) comprises a sealing part (643) closely adhered to an inlet
of a suction duct (210) to guide the sucked air to the inside of the suction duct
(210); and
the sealing part (643) includes a curved part (644) curved so as to be closely adhered
to the inlet of the suction duct (210) during rotation of the bottom plate (600).
8. The vacuum cleaner (1) according to claim 6 or 7, wherein stopper protrusions (645)
interfering with the cover (200) to limit the rotating range of the bottom plate (600)
are formed on the diaphragm part (642).
9. A vacuum cleaner (1) comprising:
a main body (20);
a fan motor (21) provided within the main body (20) for generating suction;
a dust collector (22) provided within the main body (20) for collecting dust;
an extension pipe (10) extended from the main body (20); and
a suction head (100) comprising a cover (200) combined with the extension pipe (10),
a bottom plate (600) provided with a suction hole (640) through which air is sucked
in from a surface to be cleaned and combined with the cover (200), and a brush base
(400) comprising brushes (450) and movable upward and downward between the cover (200)
and the bottom plate (600),
wherein the brush base (400) comprises indicating parts (480) exposed to the outside
of the cover (200) and forming at least a portion of the external appearance of the
suction head (100), and
wherein the indicating parts (480) are formed at corners of the brush base (400).
10. The vacuum cleaner (1) according to claim 9, wherein the cover (200) comprises slots
(270) in which the indicating parts (480) are accommodated.
11. The vacuum cleaner (1) according to claim 10, wherein the indicating parts (480) are
movable upward and downward in the slots (270).
12. The vacuum cleaner (1) according to any one of claims 9 to 11, wherein the suction
head (100) is switched to one of a first mode in which the brush base (400) moves
upward toward the cover (200) so that the bottom plate (600) is closely adhered to
the surface to be cleaned, and a second mode in which the brush base (400) moves downward
toward the bottom plate (600) so that the brushes (450) are closely adhered to the
surface to be cleaned.
13. The vacuum cleaner (1) according to claim 12, wherein a height difference between
the indicating parts (480) and the cover (200) is not generated in the first mode,
and a height difference (H) between the indicating parts (480) and the cover (200)
is generated in the second mode.
14. The vacuum cleaner (1) according to any one of claims 9 to 13, further comprising
a lever member (300) rotatably provided to move the brush base (400) upward and downward,
the lever member (300) comprising pressing protrusions (330) pressing the brush base
(400) and an operating member (320) to rotate the lever member (300), and elastic
members (500) elastically supporting the brush base (400).
1. Staubsauger (1), der Folgendes umfasst:
einen Hauptkörper (20);
einen Gebläsemotor (21), der in dem Hauptkörper (20) bereitgestellt ist, um eine Saugwirkung
zu erzeugen;
einen Staubsammler (22), der in dem Hauptkörper (20) bereitgestellt ist, um Staub
zu sammeln;
ein Verlängerungsrohr (10), das sich von dem Hauptkörper (20) erstreckt; und
einen Saugkopf (100), umfassend eine mit dem Verlängerungsrohr (10) verbundene Abdeckung
(200), eine Bodenplatte (600), die mit einem Saugloch (640) versehen ist, durch das
Luft von einer zu reinigenden Oberfläche aus eingesaugt wird, und die mit der Abdeckung
(200) drehbar verbunden ist, und eine Bürstenbasis (400), die Bürsten (450) umfasst
und zwischen der Abdeckung (200) und der Bodenplatte (600) nach oben und nach unten
bewegbar ist,
wobei die Bodenplatte (600) dazu angeordnet ist, sich in einer ersten Richtung (A)
relativ zu der Abdeckung (200) zu drehen, wenn sich der Saugkopf (100) vorwärts bewegt
und dazu angeordnet ist, sich in einer der ersten Richtung (A) entgegengesetzten zweiten
Richtung (B) relativ zu der Abdeckung (200) zu drehen, wenn sich der Saugkopf (100)
rückwärts bewegt,
dadurch gekennzeichnet, dass die Bürstenbasis (400) Anzeigeteile (480) umfasst, die nach außerhalb der Abdeckung
(200) freiliegen und mindestens einen Abschnitt der äußeren Erscheinung des Saugkopfes
(100) bilden, und
wobei die Anzeigeteile (480) an Ecken der Bürstenbasis (400) gebildet sind.
2. Staubsauger (1) nach Anspruch 1, wobei es sich bei Betrachtung aus einer Richtung,
in der sich das vordere Ende des Saugkopfes (100) links befindet und sich das hintere
Ende des Saugkopfes (100) rechts befindet, bei der ersten Richtung (A) um den Gegenuhrzeigersinn
handelt und es sich bei der zweiten Richtung (B) um den Uhrzeigersinn handelt.
3. Staubsauger (1) nach Anspruch 1 oder 2, wobei:
eine Drehwelle (230, 610) an einer von der Abdeckung (200) und der Bodenplatte (600)
gebildet ist; und
ein Drehwellen-Aufnahmeteil (240, 620), in dem die Drehwelle (230, 610) aufgenommen
ist, um ungehindert drehbar zu sein, an der anderen von der Abdeckung (200) und der
Bodenplatte (600) gebildet ist.
4. Staubsauger (1) nach einem der vorangehenden Ansprüche, wobei die Bodenplatte (600)
durch Reibung mit der zu reinigenden Oberfläche in der ersten Richtung (A) relativ
zu der Abdeckung (200) gedreht wird, wenn sich der Saugkopf (100) vorwärts bewegt.
5. Staubsauger (1) nach einem der vorangehenden Ansprüche, wobei die Bodenplatte (600)
durch die auf das vordere Ende der Bodenplatte (600) ausgeübte Reaktionskraft der
zu reinigenden Oberfläche oder das Gewicht der Bodenplatte (600) in der zweiten Richtung
(B) relativ zu der Abdeckung (200) gedreht wird, wenn sich der Saugkopf (100) rückwärts
bewegt.
6. Staubsauger (1) nach einem der vorangehenden Ansprüche, wobei das Saugloch (640) einen
Saugraum (641), in dem Luft strömt, und einen Membranteil (642), der in Richtung der
Abdeckung (200) vorsteht, um den Saugraum (641) zu bilden, umfasst.
7. Staubsauger (1) nach Anspruch 6, wobei:
der Membranteil (642) einen Dichtungsteil (643) umfasst, der eng an einem Einlass
eines Saugkanals (210) anliegt, um die gesaugte Luft in das Innere des Saugkanals
(210) zu leiten; und
der Dichtungsteil (643) einen gekrümmten Teil (644) umfasst, der derart gekrümmt ist,
dass er während der Drehung der Bodenplatte (600) eng an dem Einlass des Saugkanals
(210) anliegt.
8. Staubsauger (1) nach Anspruch 6 oder 7, wobei Anschlagvorsprünge (645), die sich mit
der Abdeckung (200) im Eingriff befinden, an dem Membranteil (642) gebildet sind,
um den Drehbereich der Bodenplatte (600) zu begrenzen.
9. Staubsauger (1), der Folgendes umfasst:
einen Hauptkörper (20);
einen Gebläsemotor (21), der in dem Hauptkörper (20) bereitgestellt ist, um eine Saugwirkung
zu erzeugen;
einen Staubsammler (22), der in dem Hauptkörper (20) bereitgestellt ist, um Staub
zu sammeln;
ein Verlängerungsrohr (10), das sich von dem Hauptkörper (20) erstreckt; und
einen Saugkopf (100), umfassend eine mit dem Verlängerungsrohr (10) verbundene Abdeckung
(200), eine Bodenplatte (600), die mit einem Saugloch (640) versehen ist, durch das
Luft von einer zu reinigenden Oberfläche aus eingesaugt wird, und die mit der Abdeckung
(200) verbunden ist, und eine Bürstenbasis (400), die Bürsten (450) umfasst und zwischen
der Abdeckung (200) und der Bodenplatte (600) nach oben und nach unten bewegbar ist,
wobei die Bürstenbasis (400) Anzeigeteile (480) umfasst, die nach außerhalb der Abdeckung
(200) freiliegen und mindestens einen Abschnitt der äußeren Erscheinung des Saugkopfes
(100) bilden, und
wobei die Anzeigeteile (480) an Ecken der Bürstenbasis (400) gebildet sind.
10. Staubsauger (1) nach Anspruch 9, wobei die Abdeckung (200) Schlitze (270) umfasst,
in denen die Anzeigeteile (480) aufgenommen sind.
11. Staubsauger (1) nach Anspruch 10, wobei die Anzeigeteile (480) nach oben und nach
unten in den Schlitzen (270) bewegbar sind.
12. Staubsauger (1) nach einem der Ansprüche 9 bis 11, wobei der Saugkopf (100) in einen
von einem ersten Modus, in dem sich die Bürstenbasis (400) nach oben in Richtung der
Abdeckung (200) bewegt, sodass die Bodenplatte (600) eng an der zu reinigenden Oberfläche
anliegt, und einem zweiten Modus, in dem sich die Bürstenbasis (400) nach unten in
Richtung der Bodenplatte (600) bewegt, sodass sie Bürsten (450) eng an der zu reinigenden
Oberfläche anliegen, umgeschaltet wird.
13. Staubsauger (1) nach Anspruch 12, wobei in dem ersten Modus kein Höhenunterschied
zwischen den Anzeigeteilen (480) und der Abdeckung (200) erzeugt wird und in dem zweiten
Modus ein Höhenunterschied (H) zwischen den Anzeigeteilen (480) und der Abdeckung
(200) erzeugt wird.
14. Staubsauger (1) nach einem der Ansprüche 9 bis 13, weiter umfassend ein Hebelelement
(300), das drehbar bereitgestellt ist, um die Bürstenbasis (400) nach oben und nach
unten zu bewegen, wobei das Hebelelement (300) Druckvorsprünge (330), die die Bürstenbasis
(400) drücken, und ein Betätigungselement (320) zum Drehen des Hebelelements (300)
umfasst, und elastische Elemente (500), die die Bürstenbasis (400) elastisch halten.
1. Aspirateur (1) comprenant :
un corps principal (20) ;
un moteur de ventilateur (21) disposé à l'intérieur du corps principal (20) pour la
génération d'une aspiration ;
un collecteur de poussière (22) disposé à l'intérieur du corps principal (20) pour
la collecte de poussière ;
un tuyau d'extension (10) étendu à partir du corps principal (20) ; et
une tête d'aspiration (100) comprenant un couvercle (200) combiné au tuyau d'extension
(10), une plaque inférieure (600) dotée d'un trou d'aspiration (640) à travers lequel
de l'air est aspiré à partir d'une surface devant être nettoyée et combinée en rotation
au couvercle (200), et une base de brosses (400) comprenant des brosses (450) et mobile
vers le haut et vers le bas entre le couvercle (200) et la plaque inférieure (600),
dans lequel la plaque inférieure (600) est agencée pour tourner dans une première
direction (A) par rapport au couvercle (200) lorsque la tête d'aspiration (100) se
déplace vers l'avant, et est agencée pour tourner dans une seconde direction (B) opposée
à la première direction (A) par rapport au couvercle (200) lorsque la tête d'aspiration
(100) se déplace vers l'arrière,
caractérisé en ce que
la base de brosses (400) comprend des parties d'indication (480) exposées à l'extérieur
du couvercle (200) et formant au moins une partie de l'aspect externe de la tête d'aspiration
(100), et
dans lequel les parties d'indication (480) sont formées au niveau de coins de la base
de brosses (400).
2. Aspirateur (1) selon la revendication 1, dans lequel la première direction (A) correspond
au sens inverse des aiguilles d'une montre et la seconde direction (B) correspond
au sens des aiguilles d'une montre, vu depuis une direction dans laquelle l'extrémité
avant de la tête d'aspiration (100) est située à gauche et l'extrémité arrière de
la tête d'aspiration (100) est située à droite.
3. Aspirateur (1) selon la revendication 1 ou 2, dans lequel :
un arbre tournant (230, 610) est formé sur un élément parmi le couvercle (200) et
la plaque inférieure (600) ; et
une partie de réception d'arbre tournant (240, 620) dans laquelle l'arbre tournant
(230, 610) est reçu de manière à pouvoir tourner librement est formée sur l'autre
élément parmi le couvercle (200) et la plaque inférieure (600).
4. Aspirateur (1) selon l'une quelconque des revendications précédentes, dans lequel
la plaque inférieure (600) est tournée dans la première direction (A) par rapport
au couvercle (200) par friction avec la surface devant être nettoyée, lorsque la tête
d'aspiration (100) se déplace vers l'avant.
5. Aspirateur (1) selon l'une quelconque des revendications précédentes, dans lequel
la plaque inférieure (600) est tournée dans la seconde direction (B) par rapport au
couvercle (200), par une force de réaction de la surface devant être nettoyée appliquée
sur l'extrémité avant de la plaque inférieure (600) ou le poids de la plaque inférieure
(600) lorsque la tête d'aspiration (100) se déplace vers l'arrière.
6. Aspirateur (1) selon l'une quelconque des revendications précédentes, dans lequel
le trou d'aspiration (640) comprend un espace d'aspiration (641) dans lequel de l'air
s'écoule, et une partie diaphragme (642) faisant saillie en direction du couvercle
(200) pour former l'espace d'aspiration (641).
7. Aspirateur (1) selon la revendication 6, dans lequel :
la partie diaphragme (642) comprend une partie d'étanchéité (643) étroitement collée
à une entrée d'un conduit d'aspiration (210) pour guider l'air aspiré à l'intérieur
du conduit d'aspiration (210) ; et
la partie d'étanchéité (643) inclut une partie incurvée (644) incurvée de manière
à être étroitement collée à l'entrée du conduit d'aspiration (210) pendant la rotation
de la plaque inférieure (600).
8. Aspirateur (1) selon la revendication 6 ou 7, dans lequel des saillies de butée (645)
interférant avec le couvercle (200) pour limiter la plage de rotation de la plaque
inférieure (600) sont formées sur la partie diaphragme (642).
9. Aspirateur (1) comprenant :
un corps principal (20) ;
un moteur de ventilateur (21) disposé à l'intérieur du corps principal (20) pour la
génération d'une aspiration ;
un collecteur de poussière (22) disposé à l'intérieur du corps principal (20) pour
la collecte de poussière ;
un tuyau d'extension (10) étendu à partir du corps principal (20) ; et
une tête d'aspiration (100) comprenant un couvercle (200) combiné au tuyau d'extension
(10), une plaque inférieure (600) dotée d'un trou d'aspiration (640) à travers lequel
de l'air est aspiré à partir d'une surface devant être nettoyée et combinée au couvercle
(200), et une base de brosses (400) comprenant des brosses (450) et mobile vers le
haut et vers le bas entre le couvercle (200) et la plaque inférieure (600),
dans lequel la base de brosses (400) comprend des parties d'indication (480) exposées
à l'extérieur du couvercle (200) et formant au moins une partie de l'aspect externe
de la tête d'aspiration (100), et
dans lequel les parties d'indication (480) sont formées au niveau de coins de la base
de brosses (400).
10. Aspirateur (1) selon la revendication 9, dans lequel le couvercle (200) comprend des
fentes (270) dans lesquelles les parties d'indication (480) sont reçues.
11. Aspirateur (1) selon la revendication 10, dans lequel les parties d'indication (480)
sont mobiles vers le haut et vers le bas dans les fentes (270).
12. Aspirateur (1) selon l'une quelconque des revendications 9 à 11, dans lequel la tête
d'aspiration (100) est commutée vers l'un d'un premier mode dans lequel la base de
brosses (400) se déplace vers le haut en direction du couvercle (200) de sorte que
la plaque inférieure (600) est étroitement collée à la surface devant être nettoyée
et d'un second mode dans lequel la base de brosses (400) se déplace vers le bas en
direction de la plaque inférieure (600) de sorte que les brosses (450) sont étroitement
collées à la surface devant être nettoyée.
13. Aspirateur (1) selon la revendication 12, dans lequel une différence de hauteur entre
les parties d'indication (480) et le couvercle (200) n'est pas générée dans le premier
mode, et une différence de hauteur (H) entre les parties d'indication (480) et le
couvercle (200) est générée dans le second mode.
14. Aspirateur (1) selon l'une quelconque des revendications 9 à 13, comprenant en outre
un élément de levier (300) disposé en rotation pour déplacer la base de brosses (400)
vers le haut et vers le bas, l'élément de levier (300) comprenant des saillies de
pression (330) pressant la base de brosses (400) et un élément d'actionnement (320)
pour tourner l'élément de levier (300), et des éléments élastiques (500) supportant
élastiquement la base de brosses (400).