U.S. patent application number 10/882401 was filed with the patent office on 2005-01-13 for bracket for washing machine and washing machine having the same.
Invention is credited to Kim, Kwang Soo, Park, Sam Je.
Application Number | 20050005650 10/882401 |
Document ID | / |
Family ID | 33566873 |
Filed Date | 2005-01-13 |
United States Patent
Application |
20050005650 |
Kind Code |
A1 |
Kim, Kwang Soo ; et
al. |
January 13, 2005 |
Bracket for washing machine and washing machine having the same
Abstract
Disclosed is a bracket for a washing machine for providing
related parts at a tub, including a body provided at the tub in the
washing machine, and a coupling member having a nut member
unseparably provided at the body, or a coupling member for evenly
loading weight of the tub on the body.
Inventors: |
Kim, Kwang Soo;
(Changwon-si, KR) ; Park, Sam Je; (Gimhae-si,
KR) |
Correspondence
Address: |
Song K. Jung
MCKENNA LONG & ALDRIDGE LLP
1900 K Street, N.W.
Washington
DC
20006
US
|
Family ID: |
33566873 |
Appl. No.: |
10/882401 |
Filed: |
July 2, 2004 |
Current U.S.
Class: |
68/23.1 |
Current CPC
Class: |
D06F 37/20 20130101 |
Class at
Publication: |
068/023.1 |
International
Class: |
D06F 037/00 |
Foreign Application Data
Date |
Code |
Application Number |
Jul 8, 2003 |
KR |
P 2003-0046023 |
Jul 25, 2003 |
KR |
P 2003-0051344 |
Claims
1. A bracket for a washing machine, comprising: a body provided at
a tub in the washing machine for supporting parts provided at the
tub; and a nut member coupled with a predetermined coupling member
for fixing the part to the body, and unseparably provided at the
body.
2. The bracket for the washing machine as claimed in claim 1,
wherein the nut member and the body are formed as a single
body.
3. The bracket for the washing machine as claimed in claim 1,
wherein the parts are a damper for supporting the tub, or a balance
weight for controlling weight imbalance of the tub.
4. The bracket for the washing machine as claimed in claim 1,
wherein the body comprises a pass through hole for passing the
coupling member, and the nut member is provided at the though
hole.
5. The bracket for the washing machine as claimed in claim 1,
wherein the body comprises an extension member extended from the
body and fixed to the tub.
6. The bracket for the washing machine as claimed in claim 1,
wherein the nut member is extended from the body to a predetermined
length.
7. The bracket for the washing machine as claimed in claim 1,
wherein the nut member comprises a helix formed on an inner
circumferential surface thereof.
8. The bracket for the washing machine as claimed in claim 1,
wherein the coupling member is a bolt.
9. The bracket for the washing machine as claimed in claim 1,
wherein the balance weight is laid on the body.
10. The bracket for the washing machine as claimed in claim 9,
wherein the body is formed in a semispherical shell form.
11. The bracket for the washing machine as claimed in claim 9,
wherein the body comprises a smooth surface on which the balance
weight is laid.
12. The bracket for a washing machine as claimed in claim 9,
wherein the nut member is provided on a central portion of the
body.
13. The bracket for the washing machine as claimed in claim 9,
wherein the nut member is extended from the body to a predetermined
length.
14. The bracket for the washing machine as claimed in claim 9,
wherein the body comprises a flange extended from an outer
circumference thereof, and fixed to the tub.
15. The bracket for the washing machine as claimed in claim 1,
wherein the damper is inserted into the body.
16. The bracket for the washing machine as claimed in claim 15,
wherein the body comprises first and second flanges arranged on the
tub, respectively, and spaced a predetermined distance.
17. The bracket for the washing machine as claimed in claim 16,
wherein the nut member is provided at either of the first flange or
the second flange.
18. The bracket for the washing machine as claimed in claim 15,
wherein the nut member is extended outward from the body.
19. The bracket for the washing machine as claimed in claim 15,
wherein the body comprises a leg extended therefrom and fixed to
the tub.
20. A washing machine comprising: a housing; a tub provided in the
housing for storing preliminary wash water; a drum receiving
laundry, and rotatably provided in the tub; and a bracket including
a body provided in the washing machine for supporting parts
provided at the tub, and a nut member coupled with a coupling
member for fixing the parts to the body and unseparably provided at
the body.
21. The washing machine as claimed in claim 20, wherein the nut
member and the body are formed as a single body.
22. The washing machine as claimed in claim 20, wherein the parts
is a damper for supporting the tub, or a balance weight for
controlling weight imbalance of the tub.
23. The washing machine as claimed in claim 20, wherein the body
comprises a pass through hole for passing the coupling member, and
the nut member is provided at the though hole.
24. The washing machine as claimed in claim 20, wherein the body
comprises an extension member extended from the body and fixed to
the tub.
25. The washing machine as claimed in claim 20, wherein the nut
member is extended from the body to a predetermined length.
26. The washing machine as claimed in claim 20, wherein the nut
member comprises a helix formed on an inner circumferential surface
thereof.
27. The washing machine as claimed in claim 20, wherein the
coupling member is a bolt.
28. The washing machine as claimed in claim 20, wherein the balance
weight is laid on the body.
29. The washing machine as claimed in claim 28, wherein the body is
formed in a semispherical shell form.
30. The washing machine as claimed in claim 28, wherein the body
comprises a smooth surface on which the balance weight is laid.
31. The washing machine as claimed in claim 28, wherein the nut
member is provided on a central portion of the body.
32. The washing machine as claimed in claim 28, wherein the nut
member is extended form the body toward the tub for a predetermined
length.
33. The washing machine as claimed in claim 28, wherein the body
comprises a flange extended from an outer circumferential surface
thereof, and fixed to the tub.
34. The washing machine as claimed in claim 20, wherein the damper
is inserted into the body.
35. The washing machine as claimed in claim 34, wherein the body
comprises first and second flanges provided on the tub,
respectively, and spaced a predetermined distance such that a part
of the damper is inserted therein.
36. The washing machine as claimed in claim 35, wherein the nut
member is provided at either one of the first flange or the second
flange.
37. The washing machine as claimed in claim 34, wherein the nut
member is extended outward from the body.
38. The washing machine as claimed in claim 34, wherein the body
comprises legs extended from the body and fixed to the tub.
39. A bracket for a washing machine, comprising: a body provided on
a tub in the washing machine; and a coupling member provided at the
body, coupled with a spring provided at a housing of the washing
machine so as to make the tub elastically be hanged thereon, and
evenly loading weight of a hanged tub on the body.
40. The bracket for the washing machine as claimed in claim 39,
wherein the coupling member is provided on a central portion of the
body.
41. The bracket for the washing machine as claimed in claim 39,
wherein the coupling member comprises a plate member extended
upward from the body.
42. The bracket for the washing machine as claimed in claim 39,
wherein the coupling member is formed from bending a part of the
body upward.
43. The bracket for the washing machine as claimed in claim 39,
wherein the coupling member comprises a pass through hole over
which the end of the spring is hooked.
44. A washing machine comprising: a housing; a tub provided in the
housing for storing preliminary wash water; a drum receiving
laundry, and rotatably provided in the tub; a spring provided in
the housing, and over which the tub is elastically hanged; and a
bracket provided at the tub, and coupled with the spring so as to
evenly disperse weight of a hanged tub thereon.
45. The washing machine as claimed in claim 44, wherein the bracket
is configured to be coupled with the spring at a center
thereof.
46. The washing machine as claimed in claim 44, wherein the bracket
comprises a coupling member provided on a central portion thereof,
and coupled with the spring.
47. The washing machine as claimed in claim 46, wherein the
coupling member comprises a plate member extended upward form the
bracket.
48. The washing machine as claimed in claim 46, wherein the
coupling member is configured from bending a part of the bracket
upward.
49. The washing machine as claimed in claim 46, wherein the
coupling member comprises a though hole over which an end of the
spring is hooked.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application claims the benefit of Korean Applications
No. P2003-46023, filed on Jul. 8, 2003, and No. P2003-51344, filed
on Jul. 25, 2003 which are hereby incorporated by reference as if
fully set forth herein.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present invention relates to a washer, and more
particularly, to a bracket assembly for attaching various parts to
a tub of the washer.
[0004] 2. Discussion of the Related Art
[0005] In general, a washer is an apparatus for washing laundry by
using machinery impact and a chemical action. The washer generally
has a drum provided therein. The tub stores preliminary wash water,
and the drum is supplied with wash water and detergent from the tub
for washing laundry therein. Therefore, the laundry is washed by
machinery impact as well as chemical action of the wash water and
detergent. Various parts are applied to the tub for supplementing a
stable operation. For example, a damper and a suspension spring are
elastically supports the tub. A balance weight performs a role of
solving weight imbalance generated by the laundry at the tub and a
drum assembly. The parts are provided at the tub by using a
predetermined bracket.
[0006] The damper and the balance weight are strongly coupled with
the bracket by using a coupling member such as a bolt, for which
the bracket includes a nut member coupled with the coupling member.
However, it is normal that the nut member is separately fabricated
and assembled to a body of the bracket. Accordingly, the work
efficiency is actually lowered in installing the damper and the
balance weight because it takes a long time to fix the nut member.
During operation of the washing machine, when excessive weight is
loaded on the damper and the balance weight, the nut member can be
separated, and the damper and the balance weight can be separated
from the tub. Therefore, the tub can be directly damaged, and the
separated nut member and the balance weight may damage other parts
of the washing machine.
[0007] In general, the bracket for the suspension spring is formed
in an angled form, i.e., "L" form, and the spring is hooked over
the bracket. In other words, a horizontal member of the bracket
formed in the angled form is fixed to the tub, and a perpendicular
member of the bracket is coupled with an end of the spring.
However, since the perpendicular member of the bracket formed in
the angled form is positioned at a side of the horizontal member,
the weight is loaded on a side of the bracket. Therefore, owing to
a large weight or fatigue loaded on the bracket, the bracket can be
separated from the tub, and the tub can be damaged.
SUMMARY OF THE INVENTION
[0008] Accordingly, the present invention is directed to a bracket
for a washing machine and washing machine having the same that
substantially obviates one or more problems due to limitations and
disadvantages of the related art.
[0009] An object of the present invention is to provide a bracket
for a washing machine for easily and strongly providing related
part at the tub.
[0010] Additional advantages, objects, and features of the
invention will be set forth in part in the description which
follows and in part will become apparent to those having ordinary
skill in the art upon examination of the following or may be
learned from practice of the invention. The objectives and other
advantages of the invention may be realized and attained by the
structure particularly pointed out in the written description and
claims hereof as well as the appended drawings.
[0011] To achieve these objects and other advantages and in
accordance with the purpose of the invention, as embodied and
broadly described herein, the bracket for a washing machine
includes a body provided at a tub in a washing machine for
supporting parts provided at the tub, and a nut member coupled with
a predetermined coupling member for fixing the parts to the body,
and unseparably provided at the body.
[0012] Preferably, the nut member and the body are formed as a
single body, and the parts become a damper for supporting the tub
or a balance weight for correcting weight imbalance of the tub.
[0013] In more detail, the body includes a pass through hole for
passing the coupling member, the nut member is provided at the pass
through hole and the body includes an extension member extended
from the body, and fixed to the tub.
[0014] The nut member is also extended from the body to a
predetermined length, and includes a helix formed in a spiral
form.
[0015] Meanwhile, in accordance with the present invention, there
is provided a bracket for a washing machine, the bracket including
a body provided at the tub in the washing machine for supporting
parts provided at the tub, and a linker provided at the body,
coupled with a spring provided at a housing of the washing machine
so as to make the tub to be elastically hanged, and evenly loading
weight of a hanged tub on the body.
[0016] The linker is, preferably, provided on a central portion of
the body. The linker includes a plate member extended upward from
the body, and preferably, is made by bending a part of the body
upward. The linker also includes a pass through hole over which an
end of the spring is hooked.
[0017] It is to be understood that both the foregoing general
description and the following detailed description of the present
invention are exemplary and explanatory and are intended to provide
further explanation of the invention as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0018] The accompanying drawings, which are included to provide a
further understanding of the invention and are incorporated in and
constitute a part of this application, illustrate embodiment(s) of
the invention and together with the description serve to explain
the principle of the invention. In the drawings;
[0019] FIG. 1 illustrates a cutaway view of a washing machine in
accordance with the present invention.
[0020] FIG. 2 illustrates a local perspective view of a balance
weight of a washing machine in accordance with the present
invention.
[0021] FIG. 3 illustrates a cross-sectional view of a balance
weight of a washing machine in accordance with the present
invention.
[0022] FIG. 4 illustrates a local perspective view of a bracket for
a damper in accordance with the present invention.
[0023] FIG. 5 illustrates a cross-sectional view of a bracket for a
damper in accordance with the present invention.
[0024] FIG. 6 illustrates a local perspective view of a bracket for
a spring in accordance with the present invention.
DETAILED DESCRIPTION OF THE INVENTION
[0025] Reference will now be made in detail to the preferred
embodiments of the present invention, examples of which are
illustrated in the accompanying drawings. Wherever possible, the
same reference numbers will be used throughout the drawings to
refer to the same or like parts.
[0026] FIG. 1 illustrates a cross-sectional view of a washing
machine in accordance with the present invention. With reference to
the drawing, the washing machine in accordance with the present
invention will be described. Although the illustrated washing
machine is a front loading type washing machine, it is almost the
same as a top loading type washing machine except that the tub 20
and the drum 30 are laid. Accordingly, although the present
invention is described with reference to a front loading type
washing machine for a brief description, it can also be applied to
a top loading type washing machine.
[0027] As illustrated, the washing machine in accordance with the
present invention includes a housing 10, a tub 20 and drum 30
provided in the housing 10.
[0028] The housing 10 is designed to have various parts therein,
and to protect the parts. On a front surface of the housing 10, a
door is provided for opening and closing an inlet coupled with the
drum 30, and a gasket 12 is provided between the inlet and the tub
20 for preventing wash water from being leaked. A control panel 13
is provided on an upper part of the housing 10. A user directs an
operation of the washing machine by using the control panel 13, and
puts the laundry into, or takes out the laundry from the drum 30
through the door. The tub 20 stores preliminary wash water for
constantly supplying the wash water to the drum 30 during washing.
In a center of a bottom surface of the tub 30, a pass through hole
is formed, and a driving axis 42 coupled with the drum 30 is
provided through the pass through hole. The drum 30 receives the
laundry, and is rotatably provided in the tub 20. The drum 30
includes a plurality of pass through holes so as to make the wash
water flow in from the tub 20. A plurality of baffles (or lifter)
31 is attached on an inner surface of the drum 30 for mixing the
laundry well. Meanwhile, a driving member 40 provided at the tub 20
provides power for rotating the drum. The driving member 40
includes a motor 41, the drum 30, and a driving axis 42 coupled
with the motor 41. The motor, in more detail, includes a stator 41a
fixed to the bottom surface of the tub 20, and a rotor 41b
rotatably provided surrounding the stator 41a. As illustrated,
because the rotor 41b is directly coupled with the driving axis 42,
the power of the motor 41 is directly transformed to the drum 30
through the driving axis 42 without any loss. Accordingly, the
driving member 40 is very advantageous in aspects of efficiency,
noise, and vibration. In the mean time, the driving member 40 may
include conventional driving mechanism including the drum 30,
pulleys provided at the motor, and a belt coupling the pulleys to
each other.
[0029] The tub includes various parts such as a balance weight 21,
a damper 22, and a suspension spring 23, for a stable operation in
the washing machine.
[0030] First, the balance weight 21 performs a role of correcting
weight imbalance occurred from its own weight, and caused by the
laundry and wash water stored in the drum 30. The damper 22
elastically supports the tub 20 and the drum 30, and absorbs
vibration generated from the tub 20 and the drum 30 during
operation of the washing machine. As illustrated in FIG. 1, the
balance weight 21 is provided on a front portion and an outer
circumferential surface of the tub 30 by using the bracket, and the
damper 22 is provided at a lower part of the outer circumferential
surface of the tub 30 by using the same. Since the balance weight
21 weighs heavily, and the damper 222 supports not only the weight
of the tub 20 and the drum 30 but also the weight of the laundry,
the damper 22 is strongly fixed to the bracket, respectively, by
using the coupling member. The balance weight 21 and brackets for
the damper 22 are illustrated in FIG. 2 to FIG. 5.
[0031] FIG. 2 and FIG. 3 illustrate the balance weight 21 and the
bracket for the balance weight provided at the front portion of the
tub 20. Referring to FIG. 2 and FIG. 3, the bracket 100 for the
balance weight includes a body 110 provided at the tub 20, and a
nut member 120 provided at the body 110 as a whole. The body 110 is
basically configured to support the balance weight 21, and thus the
balance weight 21 is laid on the body 110. In more detail, the body
110 is generally formed in a hemispherical shell, and includes a
smooth surface 111 on which the balance weight 21 is laid, so as to
stably support the balance weight 21. The body 110 includes a pass
through hole 112 for passing the coupling member 21b, and the
though hole 112 is formed on the body 110, precisely on a center of
the smooth surface 111. The body 110 includes an extension member
113 for fixing the tub 30. The extension member 113, as
illustrated, practically includes a flange extended from a
circumference of the body 110, and fixed to the tub 20 by a rivet.
The nut member 120 is coupled with the coupling member 21b for
fixing the balance weight 21 to the body 110. As aforementioned,
when the nut member 120 is separated from the body 110 during
washing, caused are damages on the various parts and trouble of the
washing machine. For this reason, the nut member 120 is basically
configured to be unseparable from the body 100 in the present
invention. In more detail, the nut member 120 and the body are
provided as a single body such that the nut member 120 is not
separated from the body 110. Actually, the body 110 and the nut
member 120 can be fabricated as a single body by a fabricating
method such as an injection molding. The nut member 120 is
continuously formed at the pass through hole 112 so as to be
coupled with the coupling member 21b passed through the pass
through hole 112. The nut member 120 is formed on the body 110,
precisely in the middle of the smooth surface 112, together with
the pass through hole 112 such that the coupling member 21b stably
fixes the balance weight 21 laid to the body 110. It is desirable
that the nut member is extended from the body 110 to a
predetermined length so as to be stably coupled with the coupling
member 21b. Precisely, the nut member 120 is extended downward from
the body 110 toward the tub 20.
[0032] A screw is formed on an inner circumferential surface of the
nut member 120. For a stronger coupling, it is desirable that the
screw is extended to an inner circumferential surface of an
adjacent pass through hole 112 as illustrated. In this case, a bolt
is actually coupled with the nut member 120 as the coupling member
21b.
[0033] As illustrated in FIGS. 4 and 5, the bracket 200 for the
damper 22, similar to the bracket 100 for balance weight, includes
a body 210 provided at the tub, and a nut member 220 provided on
the body 210. A part of the damper 22 is inserted into the body 210
such that the body 210 stably supports the damper 22. In more
detail, the body 210 includes a first and second flanges 211a and
211b provided on the tub 20. The first and second flanges 211a and
211b are arranged to face each other, and are separated a
predetermined interval for inserting a part of the damper 22. The
body 210 includes a pass through hole 212 for passing the coupling
member 22b, and the pass through hole 212 is provided at the first
and second flanges, respectively. A leg 213 is provided at the body
210 for fixing the bracket 200 to the tub 30, and the bracket 200
is strongly fixed to the tub 20 by the rivet. The nut member 220 is
coupled with the coupling member 22b for fixing the damper 22 to
the body 210. Accordingly, a screw extendable to the inner
circumferential surface of an adjacent pass through hole 212 is
provided on the inner circumferential surface of the nut member
220, and a bolt 22b being a coupling member is coupled with the nut
member 220.
[0034] The nut member 220 is unseparably provided at the body 210,
and thus the nut member 220 and the body 210 are formed as a single
body by an injection molding. The nut member 220 is provided one of
either of the first and second flanges 211a and 211b, and
continuously provided at the pass through hole 212 to be coupled
with the coupling member 22b passed through the pass through hole
212. It is desirable that the nut member 220 is extended outward
from the body 110, i.e., one of the first and second flanges 211a
and 211b, to a predetermined length so as to be stably coupled with
the coupling member 21b.
[0035] A process for installing the balance weight 21 and the
damper 22 by using the brackets 100 and 200 will be described in
more detail as follows.
[0036] First, in a case of the balance weight 21, the balance
weight 21 is laid on the smooth surface 111 of the body 110, and a
coupling hole 21a of the balance weight 21 is lined up with the
pass through hole 112 and the nut member 120 such that the balance
weight is fixed to the bracket 100. Then the bolt 21b being the
coupling member is coupled with the nut member 120 through the
coupling hole 21a such that the balance weight 21 is fixed to the
bracket 100. In a case of the damper 22, an end of the damper 22 is
first inserted between the first and the second flanges 211a and
211b, and the coupling hole 22b of the damper 22 is lined up with
the pass through hole 212 and the nut member 220. Then the bolt 22b
is inserted into the pass through hole 212 and the coupling hole
22a, and the damper 22 is coupled with the nut member 220 so as to
be fixed to the bracket 200. In each case, because the but member
121 and 220 are formed as a single body, the process,
conventionally required, of fixing the nut members 121 and 220 to
the body is unnecessary. Therefore, the balance weight 21 and the
damper 22 may be easily fixed to the bracket 100 and 200 without an
unnecessary process. Even if overweight is loaded on the damper 22
and the balance weight 21, the nut members 120 and 220 are not
separated from the bodies 110 and 220, thereby preventing the tub
and related parts from being damaged, and furthermore the washing
machine from being damaged.
[0037] The suspension spring 23 elastically supports the tub 20 as
the same as the damper 22. The damper 22 is provided at a lower
part of the tub 20 as illustrated in FIG. 1, the spring 23 is
provided at an upper part of the tub 20 so as to be able to
elastically support the tub 20 by using the bracket 300. FIG. 6
illustrates the spring bracket 300 in detail.
[0038] The bracket 300 includes a body 310, and a linker 320
provided at the body 310. The body 310 generally includes a plate
member, and fixed to the tub 20 by means of welding (a welding
point 310a). The linker 320 is coupled with the spring 23 such that
the spring is elastically hanged on the spring 23. Accordingly, the
weight of the tub 20 is first loaded on the body 310 fixed to the
tub 20, then transformed to the spring 23 through the linker 320.
However, although the spring is transformed absorbing the applied
weight loaded thereon, i.e., the weight of the tub 20, the linker
320 fixed to the spring 23 adds a predetermined amount of a thrust
of a predetermined size in proportion to the weight of the tub, to
the body 310. When the thrust, i.e., weight is concentrated on a
particular point of the body 310, the welding point 310a of the
body 310 is broken and separated from the tub 310 by fatigue or an
instant large weight. For this reason, the linker 320 is configured
to add the weight of the tub 20, i.e., the thrust corresponding to
the weight, to the body 310 evenly. Particularly, the trust
corresponding to the position, i.e., a point of trusting, on the
coupling member 310, is important in evenly adding the weight
(thrust) to the body 310. Therefore, it is desirable that the
linker 320 is provided on a central portion of the body 320 as
illustrated. In more detail, the linker 320 is formed in a plate
form as the same as the body 310, and extended upward from the body
310 so as to be easily coupled with the spring 23. The linker 320
may be separately fabricated and then fixed to the body 310 by
welding or the coupling member. However, as illustrated, it is
desirable that a part of the body 320 is bent upward. The bent
linker 320 is easily fabricated without lowering total strength of
the bracket 300, thereby lowering the cost of production by saving
a material. The linker 320 includes a pass through hole 320a, and
an end 23a of the spring is caught by the pass through hole
320a.
[0039] When the spring 23 is installed at the tub 20 by using the
bracket 300, a first end of the spring 23 is provided at the
housing 10. Then a second end of the spring 23 is inserted into the
pass through hole 320a and coupled with the linker 320.
Accordingly, the tub 20 is hanged on the spring 23, and the spring
23 absorbs vibration and impact of the tub 20 generated during the
operation of the washing machine together with the damper 22. In
this case, because the weight of the tub 20 is evenly dispersed,
the body 310 is not partially stressed. Therefore, even if
unexpected excessive weight is loaded on the bracket 300, a binding
member (welding point 310a) is not damaged, and furthermore, the
bracket 320 is not separated from tub 20.
[0040] It will be apparent to those skilled in the art that various
modifications and variations can be made in the present invention
without departing from the spirit or scope of the inventions. Thus,
it is intended that the present invention covers the modifications
and variations of this invention provided they come within the
scope of the appended claims and their equivalents.
* * * * *