U.S. patent application number 12/154522 was filed with the patent office on 2009-06-11 for cord-reel apparatus and vacuum cleaner having the same.
This patent application is currently assigned to Samsung Gwangju Electronics Co., Ltd.. Invention is credited to Joo-sung Moon, Dong-hun Yoo.
Application Number | 20090144927 12/154522 |
Document ID | / |
Family ID | 39767336 |
Filed Date | 2009-06-11 |
United States Patent
Application |
20090144927 |
Kind Code |
A1 |
Yoo; Dong-hun ; et
al. |
June 11, 2009 |
Cord-reel apparatus and vacuum cleaner having the same
Abstract
A cord reel apparatus for a vacuum cleaner is provided. The cord
reel apparatus includes a cord reel, a regulation lever, and a
release level. The cord reel is rotatably disposed in the vacuum
cleaner and is elastically biased to retract a power cord. The
regulation lever is in the cleaner body to pivot between a first
position to restrict a rotational movement of the cord reel and a
second position to release the restriction. The release lever is in
the cleaner body to pivot the regulation lever to the second
position and includes a button. The button includes a first push
portion and a second push portion. The first push portion can be
pushed in a vertical direction when the cleaner body on its rear
portion. The second push portion can be pushed in a vertical
direction when the cleaner body stands upright.
Inventors: |
Yoo; Dong-hun;
(Gwangju-city, KR) ; Moon; Joo-sung;
(Gwangju-city, KR) |
Correspondence
Address: |
OHLANDT, GREELEY, RUGGIERO & PERLE, LLP
ONE LANDMARK SQUARE, 10TH FLOOR
STAMFORD
CT
06901
US
|
Assignee: |
Samsung Gwangju Electronics Co.,
Ltd.
|
Family ID: |
39767336 |
Appl. No.: |
12/154522 |
Filed: |
May 23, 2008 |
Current U.S.
Class: |
15/300.1 ;
242/371 |
Current CPC
Class: |
A47L 9/26 20130101; A47L
5/32 20130101; A47L 5/225 20130101 |
Class at
Publication: |
15/300.1 ;
242/371 |
International
Class: |
A47L 9/00 20060101
A47L009/00; B65H 75/00 20060101 B65H075/00 |
Foreign Application Data
Date |
Code |
Application Number |
Dec 5, 2007 |
KR |
10-2007-125729 |
Claims
1. A cord reel apparatus for use in a cleaner body of a vacuum
cleaner, comprising: a cord reel that is rotatably disposable in
the cleaner body and is elastically biased in a direction for
retract rotation of a power cord; a regulation lever that is
disposable in the cleaner body to be pivotable between a first
position to restrict a rotational movement of the cord reel and a
second position to release the restriction of the rotational
movement of the cord reel; and a release lever that is pivotably
disposable in the cleaner body to pivot the regulation lever to the
second position and comprises a button, the button comprising a
first push portion that is formed on an end for protrusion out of
the cleaner body and is able to be pushed in a vertical direction
with respect to a cleaning surface if the cleaner body is laid on
its rear portion on the cleaning surface, and a second push portion
that is able to be pushed in a vertical direction with respect to a
cleaning surface if the cleaner body stands upright.
2. The cord reel apparatus as claimed in claim 1, wherein the
release lever comprises a first brake lever that extends from the
button and is pivotably disposable in the cleaner body, wherein the
regulation lever comprises a second brake lever that is pivotably
disposable in the cleaner body and is pivoted in association with
the pivotal movement of the first brake lever.
3. The cord reel apparatus as claimed in claim 2, wherein the
regulation lever further comprises: a rotary roller that is
disposed at one end of the second brake lever; and a brake block
that prevents the rotary roller from being rotated if the rotary
roller is brought into press-contact with the cord reel.
4. The cord reel apparatus as claimed in claim 3, wherein the
regulation lever further comprises an elastic member that presses
the second brake lever to pivot in a direction in which the rotary
roller is brought into press-contact with the cord reel.
5. The cord reel apparatus as claimed in claim 4, wherein the
button is disposable in a button mounting recess formed on the
cleaner body, the button mounting recess being larger than the
button.
6. The cord reel apparatus as claimed in claim 1, wherein the first
push portion is arranged parallel to the cleaning surface such that
that it is pushed in a vertical direction with respect to a
cleaning surface if the cleaner body is laid on its rear portion
parallel with the cleaning surface, wherein the second push portion
is arranged parallel to the cleaning surface such that it is pushed
in a vertical direction with respect to cleaning surface if the
cleaner body stands upright.
7. The cord reel apparatus as claimed in claim 1, further
comprising a roller member that is rotated in contact with the
power cord if the power cord is retracted or released through a
cord hole formed in the cleaner body.
8. A vacuum cleaner comprising: a brush assembly that travels along
a cleaning surface and draws in dirt-entrained air from the
cleaning surface; a cleaner body that is connected to the brush
assembly and comprises a dust collector and a power cord; a support
unit that detachably supports the cleaner body with respect to the
brush assembly such that the cleaner body is mounted to the brush
assembly in an upright type cleaning mode and the cleaner body is
dismounted from the brush assembly in a canister type cleaning
mode; and a cord reel apparatus that is disposed in the cleaner
body, wherein the cord reel apparatus comprises: a cord reel that
is rotatably disposed in the cleaner body and is elastically biased
in a direction for retract rotation of the power cord; a regulation
lever that is disposed in the cleaner body to be pivotable between
a first position to restrict a rotational movement of the cord reel
and a second position to release the restriction of the rotational
movement of the cord reel; and a release lever that is pivotably
disposed in the cleaner body to pivot the regulation lever to the
second position and comprises a button, the button comprising a
first push portion that is formed on an end protruding out of the
cleaner body and is able to be pushed in a vertical direction with
respect to a cleaning surface in the canister type cleaning mode
and a second push portion that is able to be pushed in a vertical
direction with respect to a cleaning surface in the upright type
cleaning mode.
9. The vacuum cleaner as claimed in claim 8, wherein the release
lever comprises a first brake lever that extends from the button
and is pivotably disposed in the cleaner body, wherein the
regulation lever comprises a second brake lever that is pivotably
disposed in the cleaner body and is pivoted in association with the
pivotal movement of the first brake lever.
10. The vacuum cleaner as claimed in claim 9, wherein the
regulation lever further comprises: a rotary roller that is
disposed at one end of the second brake lever; and a brake block
that prevents the rotary roller from being rotated if the rotary
roller is brought into press-contact with the cord reel.
11. The vacuum cleaner as claimed in claim 10, wherein the
regulation lever further comprises an elastic member that is
disposed between the second brake lever and the cleaner body to
press the second brake lever to pivot in a direction in which the
rotary roller is brought into press-contact with the cord reel.
12. The vacuum cleaner as claimed in claim 11, wherein the button
is disposed in a button mounting recess formed on the cleaner body
and the button mounting recess is larger than the button.
13. A cord reel apparatus for use in a vacuum cleaner, comprising:
a rotatable cord reel that is elastically biased in a direction for
rotation of a power cord in a retraction direction; a regulation
lever pivotable between a first position to restrict a rotational
movement of the cord reel and a second position to release the
restriction of the rotational movement of the cord reel; and a
release lever configured to pivot the regulation lever to the
second position, the release lever comprising a button having a
first push portion and a second push portion, the first push
portion being configured to be pushed in a vertical direction with
respect to a cleaning surface when the vacuum cleaner is in a
canister mode and the second push portion being configured to be
pushed in the vertical direction when the vacuum cleaner is in an
upright mode.
14. The cord reel apparatus as claimed in claim 13, wherein the
release lever comprises a first brake lever that extends from the
button and wherein the regulation lever comprises a second brake
lever that is pivoted in association with the pivotal movement of
the first brake lever.
15. The cord reel apparatus as claimed in claim 14, wherein the
regulation lever further comprises: a rotary roller that is
disposed at one end of the second brake lever; and a brake block
that prevents the rotary roller from being rotated if the rotary
roller is brought into press-contact with the cord reel.
16. The cord reel apparatus as claimed in claim 15, wherein the
regulation lever further comprises an elastic member that presses
the second brake lever to pivot in a direction in which the rotary
roller is brought into press-contact with the cord reel.
17. The cord reel apparatus as claimed in claim 13, further
comprising a roller member that is rotated in contact with the
power cord if the power cord is retracted or released.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims priority from Korean Patent
Application No. 10-2007-125729, filed on Dec. 5, 2007, in the
Korean Intellectual Property Office, the entire disclosure of which
is hereby incorporated by reference.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] Methods and apparatuses consistent with the present
disclosure relate to a vacuum cleaner, and more particularly, to a
vacuum cleaner having a cord reel apparatus.
[0004] 2. Description of the Related Art
[0005] In general, a vacuum cleaner performs a cleaning operation
with respect to a cleaning surface by drawing in dirt-entrained air
from the cleaning surface, separating dirt from the air, and then
discharging cleaned air to the outside. Such a vacuum cleaner has
an extension pipe pivotably connected to a suction port assembly
and also connected to a cleaner body via a handle member and a
flexible hose in sequence. Accordingly, the suction port assembly
draws in dirt-entrained air in contact with the cleaning surface,
and the air drawn in through the suction port assembly flows into
the cleaner body through the extension pipe, the handle member, and
the flexible hose. The dirt is separate from the air by a dust
collector disposed in the cleaner body and then cleaned air is
discharged to the outside.
[0006] As one of such conventional vacuum cleaners, Japanese Patent
Laid-open No. 2005-0095275 discloses a vacuum cleaner that is
convertible between an upright type vacuum cleaner and a canister
type vacuum cleaner. In order to use the vacuum cleaner as an
upright type vacuum cleaner, the cleaner body is mounted on the
extension pipe in an upright position and is located on an upper
portion of the suction port assembly, and, in order to use the
vacuum cleaner as a canister type vacuum cleaner, the cleaner body
is dismounted from the extension pipe and is laid on its rear
portion on a cleaning surface.
[0007] A cord reel apparatus is provided in the vacuum cleaner to
allow a power cord to be retracted or released. More specifically,
the power cord is wound along a cord reel and is retracted into the
cleaner body by pushing a top of a button in a vertical direction
with respect to a cleaning surface.
[0008] If such a cord reel apparatus is applied to the vacuum
cleaner that converts between an upright and a canister type vacuum
cleaners, there is no problem in pressing the button in a vertical
direction with respect to a cleaning surface in the canister type
cleaning mode. However, as the cleaner body stands upright with
respect to a cleaning surface in the upright type mode, the user
should push the top of the button in a parallel direction with
respect to the cleaning surface in order to retract the power
supply cord. To this end, there is a problem in that the cleaner
body is pushed backward and thus the user is required to support a
rear portion of the cleaner body with his/her other hand to prevent
the cleaner body from being pushed backward.
SUMMARY OF THE INVENTION
[0009] Exemplary embodiments of the present disclosure overcome the
above disadvantages and other disadvantages not described above.
Also, the present disclosure is not required to overcome the
disadvantages described above, and an exemplary embodiment of the
present disclosure may not overcome any of the problems described
above.
[0010] An aspect of the present disclosure is to provide a cord
reel apparatus that has an operating button that can be pushed in a
vertical direction with respect to a cleaning surface regardless of
a position of a vacuum cleaner, thereby improving a user's
convenience, and a vacuum cleaner having the same.
[0011] The foregoing and/or other aspects and utilities of the
present disclosure may be achieved by a cord reel apparatus,
including a cord reel that is rotatably disposed in a cleaner body
of a vacuum cleaner and is elastically biased in a direction for
retract rotation of a power cord, a regulation lever that is
disposed in the cleaner body to be pivotable between a first
position to restrict a rotational movement of the cord reel and a
second position to release the restriction, and a release lever
that is pivotably disposed in the cleaner body to pivot the
regulation lever to the second position and includes a button, the
button including a first push portion that is formed on an end
protruding out of the cleaner body and is able to be pushed in a
vertical direction with respect to a cleaning surface if the
cleaner body is laid on its rear portion on the cleaning surface,
and a second push portion that is able to be pushed in a vertical
direction with respect to a cleaning surface if the cleaner body
stands upright.
[0012] The release lever may include a first brake lever that
extends from the button and is pivotably disposed in the cleaner
body, and the regulation lever may include a second brake lever
that is pivotably disposed in the cleaner body and is pivoted in
association with the pivotal movement of the first brake lever.
[0013] The regulation lever may further include a rotary roller
that is disposed at one end of the second brake lever, and a brake
block that prevents the rotary roller from being rotated if the
rotary roller is brought into press-contact with the cord reel.
[0014] The regulation lever may further include an elastic member
that is disposed between the second brake lever and the cleaner
body to press the second brake lever to pivot in a direction in
which the rotary roller is brought into press-contact with the cord
reel.
[0015] The button may be disposed in a button mounting recess
formed on the cleaner body and the button mounting recess may be
larger than the button.
[0016] The first push portion may be arranged parallel to the
cleaning surface such that that it is pushed in a vertical
direction with respect to a cleaning surface if the cleaner body is
laid on its rear portion parallel with the cleaning surface, and
the second push portion may be arranged parallel to the cleaning
surface such that it is pushed in a vertical direction with respect
to cleaning surface if the cleaner body stands upright.
[0017] The cord reel apparatus may further include a roller member
that is rotated in contact with the power cord if the power cord is
retracted or released through a cord hole formed in the cleaner
body.
[0018] The foregoing and/or other aspects and utilities of the
present disclosure may be also achieved by a vacuum cleaner
including a brush assembly that travels along a cleaning surface
and draws in dirt-entrained air from the cleaning surface, a
cleaner body that is connected to the brush assembly and includes a
dust collector and a power cord, a support unit that detachably
supports the cleaner body with respect to the brush assembly such
that the cleaner body is mounted to the brush assembly in an
upright type cleaning mode and the cleaner body is dismounted from
the brush assembly in a canister type cleaning mode, and a cord
reel apparatus that is disposed in the cleaner body. The cord reel
apparatus may include a cord reel that is rotatably disposed in the
cleaner body and is elastically biased in a direction for retract
rotation of the power cord, a regulation lever that is disposed in
the cleaner body to be pivotable between a first position to
restrict a rotational movement of the cord reel and a second
position to release the restriction, and a release lever that is
pivotably disposed in the cleaner body to pivot the regulation
lever to the second position and includes a button, the button
including a first push portion that is formed on an end protruding
out of the cleaner body and is able to be pushed in a vertical
direction with respect to a cleaning surface in the canister type
cleaning mode and a second push portion that is able to be pushed
in a vertical direction with respect to a cleaning surface in the
upright type cleaning mode.
[0019] The release lever may include a first brake lever that
extends from the button and is pivotably disposed in the cleaner
body, and the regulation lever may include a second brake lever
that is pivotably disposed in the cleaner body and is pivoted in
association with the pivotal movement of the first brake lever.
[0020] The regulation lever may further include a rotary roller
that is disposed at one end of the second brake lever, and a brake
block that prevents the rotary roller from being rotated if the
rotary roller is brought into press-contact with the cord reel.
[0021] The regulation lever may further include an elastic member
that is disposed between the second brake lever and the cleaner
body to press the second brake lever to pivot in a direction in
that the rotary roller is brought into press-contact with the cord
reel.
[0022] The button may be disposed in a button mounting recess
formed on the cleaner body and the button mounting recess may be
larger than the button.
[0023] As described above, it is possible to retract the power cord
simply by pushing the button of the cord reel apparatus in a
vertical direction with respect to a cleaning surface with user's
one hand regardless of whether the cleaner body stands up or is
laid on its rear portion on the cleaning surface. Accordingly, the
user feels convenient when operating the cord reel apparatus and
accordingly can use the vacuum cleaner more conveniently.
BRIEF DESCRIPTION OF THE DRAWINGS
[0024] Above and other aspects of the present disclosure will
become apparent and more readily appreciated from the following
description of the exemplary embodiments, taken in conjunction with
the accompany drawings of which:
[0025] FIG. 1 is a view illustrating a vacuum cleaner when it is
used as an upright type vacuum cleaner according to an exemplary
embodiment of the present disclosure;
[0026] FIG. 2 is a view illustrating the vacuum cleaner when it is
used as a canister type vacuum cleaner according to the exemplary
embodiment of the present disclosure;
[0027] FIG. 3A is a view illustrating a cord reel apparatus of the
vacuum cleaner that is laid on its rear portion on a cleaning
surface in order to be used as a canister type vacuum cleaner;
[0028] FIG. 3B is a view illustrating the cord reel apparatus of
FIG. 3A with a button pushed in a vertical direction with respect
to a cleaning surface;
[0029] FIG. 4A is a view illustrating the cord reel apparatus of
the vacuum cleaner that stands upright in order to be used as an
upright type vacuum cleaner;
[0030] FIG. 4B is a view illustrating the cord reel apparatus of
FIG. 4A with the button pushed in a vertical direction with respect
to a cleaning surface; and
[0031] FIG. 5 is a view illustrating a cord hole area formed on the
cleaner body according to the exemplary embodiment of the present
disclosure.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
[0032] Certain exemplary embodiments of the present disclosure will
be described in greater detail with reference to the accompanying
drawings.
[0033] In the following description, the same drawing reference
numerals are used for the same elements even in different drawings.
The matter defined in the description, such as detailed
construction and elements, are provided to assist in a
comprehensive understanding of the disclosure. Thus, it is apparent
that the exemplary embodiments of the present disclosure can be
carried out without this specifically defined matter. Also,
well-known functions or constructions are not described in detail
since they would obscure the disclosure with unnecessary
detail.
[0034] Hereinafter, a vacuum cleaner 100 having a cord reel
apparatus 200 according to an exemplary embodiment of the present
disclosure will now be described with reference to the accompanying
drawings. For reference, FIG. 1 is a view illustrating the vacuum
cleaner 100 when it is used as an upright type vacuum cleaner, and
FIG. 2 is a view illustrating the vacuum cleaner 100 when it is
used as a canister type vacuum cleaner.
[0035] Referring to FIGS. 1 and 2, the vacuum cleaner 100 according
to an exemplary embodiment of the present disclosure is convertible
between an upright type vacuum cleaner and a canister type vacuum
cleaner and includes a cleaner body 10, a brush assembly 20, a
flexible hose 30, and a handle member 40.
[0036] The cleaner body 10 includes therein a suction motor (not
shown) to generate a suction force to draw in dirt-entrained air
from a cleaning surface and a dust collector (not shown) to filter
dirt from the air drawn in from the cleaning surface.
[0037] The brush assembly 20 draws in the dirt-entrained air while
traveling along the cleaning surface and includes a suction port
assembly 21 and an extension pipe 26.
[0038] The suction port assembly 21 is pivotably connected to the
extension pipe 26 and has a drum brush (not shown) disposed therein
to brush the cleaning surface and also has a suction port (not
shown) through that the dirt is drawn in from the cleaning
surface.
[0039] The extension pipe 26 has one end connected to the suction
port assembly 21 and the other end connected to the handle member
40 such that the air drawn in through the suction port assembly 21
flows into the cleaner body 10 via the handle member 40 and the
flexible hose 30. The extension pipe 26 has a first mounting
protrusion 28 (see FIG. 2) and a second mounting protrusion 29 (see
FIG. 2) formed at one side thereof, which serve as a support unit
to support the cleaner body 10 standing upright on the top of the
suction port assembly 21 when the vacuum cleaner 100 is used as an
upright type vacuum cleaner as shown in FIG. 1. Accordingly, in
order to use the vacuum cleaner 100 as an upright type vacuum
cleaner, the user mounts the cleaner body 10 to the extension pipe
26 by means of the first and the second mounting protrusions 28 and
29. In contrast and in order to use the vacuum cleaner 100 as a
canister type vacuum cleaner, the user dismounts the cleaner body
10 from the first and the second mounting protrusions 28 and 29 and
lays the cleaner body 10 on its rear portion 12 on a cleaning
surface. Also, the length of the extension pipe 26 may be adjusted
by a length adjusting unit 23 formed on the extension pipe 26 if
necessary.
[0040] The flexible hose 30 is interconnected between the handle
member 40 and the cleaner body 10 to allow the dirt-entrained air
drawn in from the suction port assembly 21 through the extension
pipe and the handle member 40 to flow into the cleaner body 10.
[0041] The vacuum cleaner 100 further includes the cord reel
apparatus 200, which will now be described with reference to FIGS.
3A to 4B.
[0042] For reference, FIG. 3A is a view illustrating the cord reel
apparatus 200 when the vacuum cleaner 100 is laid on the rear
portion 12 so that the rear portion is parallel to a cleaning
surface to be used as a canister type vacuum cleaner, and FIG. 3B
is a view illustrating the cord reel apparatus 200 of FIG. 3A with
a button 220 pushed in a vertical direction with respect to the
cleaning surface. FIG. 4A is a view illustrating the cord reel
apparatus 200 when the vacuum cleaner 100 stands upright in order
to be used as an upright type vacuum cleaner, and FIG. 4B is a view
illustrating the cord reel apparatus 200 of FIG. 4A with the button
220 pushed in a vertical direction with respect to the cleaning
surface.
[0043] The cord reel apparatus 200 allows a power cord 205 to be
released from or retracted in the cleaner body 10, and includes a
cord reel 210, a release lever 220, and a regulation lever 240 as
shown in FIG. 3A to 4B.
[0044] The cord reel 210 is rotatably disposed in the cleaner body
10. The power cord 205 is wound along the cord reel 210, and the
cord reel 210 is urged to rotate in a direction P to retract the
power cord 205 by a rotational force generated by a spring (not
shown). That is, the cord reel 210 is elastically biased with
respect to the cleaner body 10 in the retract direction P of the
power cord 205.
[0045] The release lever 220 is pushed to pivot from a first
position where the regulation lever 240 restricts the rotation of
the cord reel 210 to a second position where the regulation lever
240 releases the restriction. The release lever 220 includes a
button 224 and a first brake lever 230.
[0046] The button 224 has a part received in a button mounting
recess 15 formed on the cleaner body 10, and the button mounting
recess 14 is formed to be larger than the button 224 such that it
guarantees a space where the button 220 can move up and down and
also can be pivoted at an inclination angle.
[0047] The button 224 protrudes from the cleaner body 10 and
includes a first push portion 221 that is formed on the top of the
button 224 and a second push portion 223 that is formed on a side
surface of the first push portion 221. The first push portion 221
is used to push the button 224 in a vertical direction with respect
to a cleaning surface when the vacuum cleaner 100 is used as a
canister type vacuum cleaner, as shown in FIG. 3A. Conversely, the
second push portion 223 is to used to push the button 224 in a
vertical direction with respect to a cleaning surface when the
vacuum cleaner 100 is used as an upright type vacuum cleaner, as
shown in FIG. 4A. The first push portion 221 is arranged parallel
to the cleaning surface to be pushed in a vertical direction with
respect to a cleaning surface when the vacuum cleaner 10 is laid on
the rear portion 12 so that the rear portion is parallel with the
cleaning surface. The second push portion 221 is arranged parallel
to the cleaning surface to be pushed in a vertical direction with
respect to a cleaning surface when the vacuum cleaner 10 stands
upright with respect to the cleaning surface. A plurality of
protrusions 221a and 223a are formed on the first and the second
push portions 221 and 223 of the button 224 to increase a friction
force between the button 224 and the user's hand and thus to allow
the user to easily push the button 224.
[0048] The first brake lever 230 has one side connected to an end
of the button 224 as if it extends from the button 224, and is
pivotable about a first hinge shaft 232 with respect to the cleaner
body 10. If the user pushes the button 224 using either first or
second push portions 221, 223, a free end 230a of the first brake
lever 230 pivots about the first hinge shaft 232 in association
with the movement of the button 224.
[0049] The regulation lever 240 restricts or releases the cord reel
210 in association with the pivotal movement of the first brake
member 230 and includes a second brake lever 241, a rotary roller
250, a brake block 260, and an elastic member 270.
[0050] The second brake lever 241 has one end connected to a second
hinge shaft 242 to pivot around the second hinge shaft 242 with
respect to the cleaner body 10 and has the other end where the
rotary roller 250 is disposed. The second brake lever 241 is
disposed in contact with the free end 230a of the first brake lever
230 such that the second brake lever 241 is pivoted in association
with the pivotal movement of the first brake lever 230. Also, an
extension piece 244 protrudes from the second brake lever 241 to a
predetermined distance and a protrusion 246 extends upwardly from
the extension piece 244.
[0051] The elastic member 270 is disposed between the protrusion
246 and the cleaner body 10 to elastically bias the second brake
lever 241 in a direction in which an end of the second brake lever
241 get closer to the cord reel 210.
[0052] The rotary roller 250 is disposed on the other end of the
second brake lever 241 and partially in press-contact with an outer
surface of the cord reel 210. The rotary roller 250 has a
cylindrical shape rotatable about a rotary shaft 251 disposed in
the the second brake lever 241 The brake block 260 gives a friction
so as not to rotate the rotary roller 250 if the rotary roller 250
is brought into press-contact with cord reel 210, and prevents the
cord reel 210 from being rotated. The brake block 260 is shaped in
a rib that protrudes from one side of the second brake lever 241,
and a lower surface of the brake block 260 should be away from an
outer circumference of the rotary roller 250 by a predetermined
distance. The brake block 260 is integrally formed with the second
brake lever 241 and may be formed by an injection molding
process.
[0053] The elastic member 270 is disposed between the second brake
lever 241 and the cleaner body 10 to generate an elastic force to
pivot the second brake lever 241 in a direction in which the rotary
roller 250 is brought into press-contact with the cord reel
210.
[0054] According to the exemplary embodiment of the present
disclosure, the cord reel apparatus 200 is designed such that the
power cord 205 can be easily retracted or released without being in
direct contact with the cleaner body 10. Referring to FIGS. 3A and
5, the cleaner body 10 has a cord hole 19 through which the power
cord 205 is retracted, and another rotary roller 207 is provided in
the cord hole 19. Accordingly, when the user holds a plug 205a and
pulls out the power cord 205 or when the power cord 205 is
retracted by the cord reel apparatus 200, the power cord 205 does
not contact the cleaner body 10 and instead contacts the rotary
roller 207 such that the rotation of the rotary roller 207 enables
the power cord 205 to be easily retracted or released.
[0055] Hereinafter, operation of the cord reel apparatus 200
according to the exemplary embodiment of the present disclosure
will now be described with reference to FIGS. 3A to 4B.
[0056] If the vacuum cleaner 100 is used as an upright type vacuum
cleaner, the cleaner body 10 is mounted to the extension pipe 26
such that it stands upright with respect to a cleaning surface as
shown in FIG. 1. Accordingly, the first push portion 221 of the
button 224 turns to face the front, while the second push portion
223 turns to face up, as shown in FIG. 4A.
[0057] In this state, the user holds the plug 205a and pulls out
the power cord 205 and then connects the plug 205a to a power
supply to perform an upright type vacuum cleaning operation. After
the cleaning, if the user pushes the second push portion 223 of the
button 224 in order to retract the power cord 205 in the cleaner
body 10, the second push portion 223 is downwardly inclined with
respect to the cleaning surface. This is because the button
mounting recess 15 is larger than the button 224.
[0058] As the button 220 is pushed, the free end 230a of the first
brake lever 230 is pivoted up about the first hinge shaft 232, and,
in association with this pivotal movement of the first brake lever
230, the second brake lever 241 is pivoted about the second hinge
shaft 242 in a direction in which the rotary roller 250 moves away
from the cord reel 210. If the rotary roller 250 moves away from
the cord reel 210, the cord reel 210 is rotated by a spring (not
shown) disposed in the cord reel 210, thereby winding the power
cord 205 thereon as shown in FIG. 4B and the power cord 205 is
completely retracted in the cleaner body 10.
[0059] On the other hand, if the vacuum cleaner is used as a
canister type vacuum cleaner, the cleaner body 10 is dismounted
from the extension pipe 26 and is laid on the rear portion 12
parallel with a cleaning surface as shown in FIG. 2. Accordingly,
the first push portion 221 turns to face up and the second push
portion 223 turns to face the side of the first push portion 221,
as shown in FIG. 3A.
[0060] In this state, the user holds the plug 205a and pulls out
the power cord 205, and then connects the power cord 205 to a power
supply in order to perform a canister type vacuum cleaning
operation. After the cleaning, if the user pushes the first push
portion 221 of the button 224 in a vertical direction with respect
to a cleaning surface in order to retract the power cord 205 in the
cleaner body 10, the first push portion 221 is downwardly inclined.
This is because the button mounting recess 15 is larger than the
button 220.
[0061] As the button 224 is pushed, the free end 230a of the first
brake lever 230 is pivoted up about the first hinge shaft 232, and,
in association with the pivotal movement of the first brake lever
230, the second brake lever 241 is pivoted about the second hinge
shaft 242 in a direction in which the rotary roller 250 moves away
from the cord reel 210. If the rotary roller 250 moves away from
the cord reel 210, the cord reel 210 is rotated by a spring (not
shown) disposed in the cord reel 210 such that the power cord 205
is wound around the cord reel 210 as shown in FIG. 3B and thus is
completely retracted in the cleaner body 10.
[0062] In a conventional method of operating the cord reel
apparatus in an upright type vacuum cleaning mode, the user is
required to support the cleaner body with his/her one hand while
pushing the button of the cord reel apparatus with the other hand.
However, according to the exemplary embodiment of the present
disclosure, the user can retract the power cord 205 simply by
pushing the button 224 in a vertical direction with respect to a
cleaning surface with his/her one hand in any mode of an upright
type vacuum cleaning mode or a canister type vacuum cleaning mode,
i.e., regardless of whether the cleaner body stands up or is laid
on its rear portion 12 on the cleaning surface.
[0063] The foregoing exemplary embodiments and advantages are
merely exemplary and are not to be construed as limiting the
present disclosure. The present teaching can be readily applied to
other types of apparatuses. Also, the description of the exemplary
embodiments of the present disclosure is intended to be
illustrative, and not to limit the scope of the claims, and many
alternatives, modifications, and variations will be apparent to
those skilled in the art.
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