US20040107738A1

US20040107738A1 - Washing machine and cabinet thereof

Info

Publication number: US20040107738A1
Application number: US10/722,466
Authority: US
Inventors: Jae Kim; Ho Kwon; Kang Choi
Original assignee: Individual
Current assignee: LG Electronics Inc
Priority date: 2002-11-29
Filing date: 2003-11-28
Publication date: 2004-06-10
Also published as: KR100935699B1; KR20040047189A

Abstract

Disclosed is a washing machine and cabinet thereof, which prevents a stress from being concentrated on the cabinet while the washing machine operates. The present invention includes a washing tub having an inner tub rotatably installed to hold a laundry for washing and an outer tub holding the inner tub, a drive means for rotating the inner tub, a body holding the washing tub and the drive means inside, and a front panel in front of the body to have a plurality of notch recesses for preventing stress concentration to improve a rigidity. And, the body includes a base plate at a bottom of the body, a pair of side panels on both sides of the base plate, a rear panel in rear of the base plate and the side panels, and a top panel on the side panels and the rear panel.

Description

This application claims the benefit of Korean Application(s) No. 10-2002-0075312 filed on Nov. 29, 2002 which is/are hereby incorporated by reference.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to a washing machine, and more particularly, to a washing machine and cabinet thereof, which prevents a stress from being concentrated on the cabinet while the washing machine operates.

2. Discussion of the Related Art

Generally, a washing machine holds water and detergent in a lower part of a tub. After laundry is put in a drum installed inside the tub, the drum is rotated to perform washing, rinsing, and dewatering.

Such a washing machine is an apparatus for eliminating dirt or filth attached to the laundry by applying a mechanical force thereto together with a detergent.

Specifically, a drum type washing machine is an apparatus for eliminating dirt or filth attached to the laundry by putting the laundry, water, and detergent in a drum horizontally installed to rotate by a driving force of a motor. The drum type washing machine barely has entanglement and damage of the laundry, consumes less water, and even has washing effects of beating and rubbing.

Referring to FIG. 1 and FIG. 2, a general drum type washing machine consists of a

cabinet

10 having a front panel, in which an opening is provided to put in/out a laundry, to form an exterior, a door 12 installed on a front side of the cabinet 10 to open/close the opening, a tub 20 provided inside the cabinet 10, and a drum 30 rotatably installed inside the tub 20 to hold the laundry.

The

drum

30 includes lifters 31 on its inside to pull the laundry up to a predetermined height. Once the drum 30 rotates, the laundry is lifted up to an upper part of the drum 30 by the lifters 31 and then falls down for washing.

A rotational means for rotating the

drum

30 is provided in a space between an inside of the cabinet and the tub 20.

The rotational means consists of a

motor

40 provided under the tub 20 to be electrically driven, a first rotational shaft 41 extending in a rear direction of the cabinet to have one end connected to the motor 40, a driving pulley 42 provided at the other end of the first rotational shaft 41, a second rotational shaft 43 having on end connected to a rear side of the drum, a driven pulley 44 provided at the other end of the second rotational shaft 43, and a belt 45 connecting the driving and driven pulleys 42 and 44.

A rotational force of the motor enabling forward and reverse rotations is transferred to the

drum

30 via the two rotational shafts, driving pulley, belt, and driven pulley.

And, a

control panel

13 provided as a control means for controlling an operation of the drum type washing machine is installed on an upper front side of the cabinet 10.

Moreover, a

gasket

14 is provided between the opening of the front panel 11 and the tub 20 to buffer shocks generated from forward and reverse vibrations of the drum 30 and to prevent leakage of the water when the drum is rotating with the door closed.

Referring to FIG. 3, the

cabinet

10 consists of a front-open body 15 to hold the drum and tub inside and the front panel 11 coupled with a front side of the body 15 to have the opening at a center through which the laundry is put in/out.

The

front panel

11 consists of top and

bottom flanges

11 a and 11 b firstly bent from top and bottom ends of the front panel 11 in a rear direction and secondly bent upward and downward, respectively and left and

right flanges

11 c and 11 d firstly bent from both lateral sides in the rear direction and secondly bent in a direction facing each other, respectively.

An

insertion hole

11 e having a shape of key slot is formed at each upper part of the left and

right flanges

11 c and 11 d, and a coupling hole 11 f is formed at each lower part of the left and

right flanges

11 c and 11 d.

And,

insertion protrusions

11 e and coupling protrusions 15 f are formed at both front ends of the body to correspond to the insertion holes 11 e and the coupling holes 11 f, respectively.

First screw holes

11 g and 11 h are formed at the top and

bottom flanges

11 a and 11 b, respectively for assembly to the body 15. And,

second crew holes

15 g and 15 h are formed at front sides of the top and bottom ends of the body 15, respectively to correspond to the

first screw holes

11 g and 11 h. Screw bolts B are fitted to the screw holes for assembly.

However, in the general drum type washing machine having the above-constructed

cabinet

10, vibration of the tub 20 generated from a rotation of the drum 30 is transferred to the front panel 11 through the gasket 14, whereby stress is concentrated on corners of the front panel 11 to distort the corresponding corners.

To overcome such a problem, a new drum type washing machine and cabinet thereof enabling to prevent the stress concentration is needed.

SUMMARY OF THE INVENTION

Accordingly, the present invention is directed to a washing machine and cabinet thereof that substantially obviates one or more of the problems due to limitations and disadvantages of the related art.

An object of the present invention, which has been devised to solve the foregoing problem, lies in providing a washing machine and cabinet thereof, which prevents a stress from being concentrated on the cabinet while the washing machine operates.

Additional features and advantages of the invention will be set forth in the description which follows, and in part will be apparent to those having ordinary skill in the art upon examination of the following or may be learned from a practice of the invention. The objectives and other advantages of the invention will be realized and attained by the subject matter particularly pointed out in the specification and claims hereof as well as in the appended drawings.

To achieve these objects and other advantages in accordance with the present invention, as embodied and broadly described herein, there is provided a washing machine cabinet includes a body having an open front side, the body including a base plate at a bottom of the body, a pair of side panels on both sides of the base plate, a rear panel in rear of the base plate and the side panels, and a top panel on the side panels and the rear panel, and a front panel in front of the body to have a plurality of notch recesses for preventing stress concentration.

The notch recesses are formed at an outline part of the front panel.

The outline part of the front panel includes a top flange bent from a top edge in a rear direction, a pair of side flanges bent from both side edges in the rear direction, and a bottom flange bent from a bottom edge in the rear direction.

And, the cabinet further includes a top frame bent upward from a rear end of the top flange, a pair of side frames vertically bent inward from rear ends of the side flanges to face each other, respectively, and a bottom frame bent downward from a rear end of the bottom flange.

In this case, the notch recesses are formed at both ends of the top and bottom flanges in the vicinity of both ends of the top and bottom frames, respectively. Moreover, each shape of the notch recesses is a ‘U’ type.

Meanwhile, the notch recesses may be formed at one sides of portions where the front panel is assembled to the body.

In another aspect of the present invention, there is provided a washing machine includes a washing tub having an inner tub rotatably installed to hold a laundry for washing and an outer tub holding the inner tub, a drive means for rotating the inner tub, a body holding the washing tub and the drive means inside, the body including a base plate at a bottom of the body, a pair of side panels on both sides of the base plate, a rear panel in rear of the base plate and the side panels, and a top panel on the side panels and the rear panel, and a front panel in front of the body to have a plurality of notch recesses for preventing stress concentration.

Therefore, the above-constructed drum type washing machine according to the present invention enables to prevent the cabinet from being deformed by long-term use or shocks.

It is to be understood that both the foregoing explanation and the following detailed description of the present invention are exemplary and illustrative and are intended to provide further explanation of the invention as claimed.

BRIEF DESCRIPTION OF THE DRAWINGS

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: [0034]
FIG. 1 is a perspective view of a general drum type washing machine; [0035]
FIG. 2 is a schematic internal view of a general drum type washing machine; [0036]
FIG. 3 is a perspective view of a disassembly of a front panel of a general drum type washing machine; an [0037]
FIG. 4 is a perspective view of a disassembly of a front panel of a cabinet of a drum type washing machine according to the present invention.[0038]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENT(S)

Reference will now be made in detail to the preferred embodiment(s) of the present invention, examples of which are illustrated in the accompanying drawings. Throughout the drawings, like elements are indicated using the same or similar reference designations where possible. [0039]
FIG. 4 is a perspective view of a disassembly of a front panel of a cabinet of a drum type washing machine according to the present invention. [0040]
Referring to FIG. 4, a drum type washing machine according to one preferred embodiment of the present invention includes a cabinet [0041] 100 forming an exterior, a tub 200 provided in the cabinet, a drum 300 rotatably provided in the tub 200, and a rotation means for rotating the drum.
The [0042] drum 300 holds a laundry, and a plurality of lifters 310 are installed to leave a predetermined interval from each other on an inside of the drum 300 in a circumferential direction to pull up the laundry to a predetermined height.
The [0043] tub 200 and the drum 200 may be called an outer tub and an inner tub, respectively.
The cabinet [0044] 100 consists of a front-open body 150 holding the drum and tub inside and a front panel 110 coupled with a front side of the body 150.
The [0045] body 150 includes a base plate (not shown in the drawing), a pair of side panels 151, a rear panel (not shown in the drawing), and a top panel 152 provided on the side and rear panels.
In this case, the [0046] front panel 110 has an opening at a center through which the laundry is put in/out, and a door 120 is installed at the front panel 110 to open/close the opening and to prevent the laundry from being thrown away through the opening.
A [0047] control panel 130 controlling an operation of the drum type washing machine is installed on an upper front side of the front panel 110.
A [0048] gasket 140 is installed between the opening of the front panel 110 and the tub 200 to alleviate a shock generated from the tub 200 and to play a role of a packing for preventing water from leaking outside.
Meanwhile, the [0049] front panel 110 has an outline part consisting of a top flange 111 bent from a top edge in a rear direction, a pair of side flanges 112 bent from both side edges in the rear direction, and a bottom flange 113 bent from a bottom edge in the rear direction.
And, the cabinet [0050] 100 further includes a top frame 114 bent upward from a rear end of the top flange 111, a pair of side frames 115 vertically bent inward from rear ends of the side flanges 112 to face each other, respectively, and a bottom frame 116 bent downward from a rear end of the bottom flange 113.
An [0051] insertion hole 115 a having a key slot shape is formed at each upper part of the respective side frames 115, and a coupling hole 115 b is formed at each lower part of the respective side frames 115.
And, [0052] insertion protrusions 153 and coupling protrusions 154 are formed at both front ends of the body 150 to correspond to the insertion holes 115 a and the coupling holes 115 b, respectively.
First screw holes [0053] 114 a and 116 a are formed at the top and bottom frames 114 and 116, respectively for assembly to the body 150. And, second crew holes 155 and 156 are formed at front sides of the top and bottom ends of the body 150, respectively to correspond to the first screw holes 114 a and 116 a. Screw bolts B are fitted to the screw holes for assembly.
Meanwhile, notch recesses [0054] 111 a and 113 a are formed at the outline part of the front panel 110 to prevent the stress concentration from being generated by the vibration of the tub 200 transferred through the gasket 140.
The notch recesses [0055] 111 a and 113 a are formed on corners of the outline part of the front panel 110.
Specifically, the notch recesses [0056] 111 a and 113 a are formed at both ends of the top and bottom flanges 111 and 113 in the vicinity of both ends of the top and bottom frames 114 and 116, respectively. And, each shape of the notch recesses 111 a and 113 a is preferably a ‘U’ type.
Instead, the notch recesses [0057] 111 a and 113 a may be formed at one sides of portions where the front panel 110 is assembled to the body 150 or both corners of the side flanges 112.
A process of assembling the [0058] front panel 110 to the body 150 of the above-constructed drum type washing machine according to the present invention is explained as follows.
First of all, after the [0059] insertion protrusions 153 are fitted to the insertion holes 115 a at the side flanges 112 of the front panel 110, the front panel 110 is lifted upward to have the coupling protrusions 154 be correspondingly inserted in the coupling holes 115.
Subsequently, the screw bolts B are fitted to the screw holes at the [0060] front panel 110 and the body 150 to assemble the cabinet 100.
The above-assembled cabinet receives the vibration of the [0061] tub 200 generated from the rotation of the drum 300.
The stress generated from the transferred vibration is dispersed by the notch recesses [0062] 111 a and 113 a at the corners of the cabinet to prevent the deformation or damage of the cabinet.
Accordingly, the above-constructed present invention has the following effects or advantages. [0063]
First of all, the present invention prevents the stress, which is generated from the transferred vibration on operating the washing machine, from being concentrated on the cabinet, and more specifically, on the front panel, thereby enabling to prevent he deformation or damage of the cabinet. [0064]
Secondly, a rigidity of the front panel is improved to form a thinner front panel, whereby a product cost is saved. [0065]
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 invention. Thus, it is intended that the present invention cover such modifications and variations, provided they come within the scope of the appended claims and their equivalents. [0066]

Claims

What is claimed is:

1. A washing machine cabinet comprising:

a body having an open front side, the body comprising:

a base plate at a bottom of the body;

a pair of side panels on both sides of the base plate;

a rear panel in rear of the base plate and the side panels; and

a top panel on the side panels and the rear panel; and

a front panel in front of the body to have a plurality of notch recesses for preventing stress concentration.

2. The washing machine cabinet as claimed in claim 1, wherein the notch recesses are formed at an outline part of the front panel.

3. The washing machine cabinet as claimed in claim 2, the outline part of the front panel comprising:

a top flange bent from a top edge in a rear direction;

a pair of side flanges bent from both side edges in the rear direction; and

a bottom flange bent from a bottom edge in the rear direction.

4. The washing machine cabinet as claimed in claim 3, wherein the notch recesses are formed at both ends of the top and bottom flanges.

5. The washing machine cabinet as claimed in claim 3, wherein the notch recesses are formed at both ends of the side flanges.

6. The washing machine cabinet as claimed in claim 1, wherein the notch recesses are ‘U’-shaped.

7. The washing machine cabinet as claimed in claim 1, wherein the notch recesses are formed at one sides of portions where the front panel is assembled to the body.

8. A washing machine comprising:

a washing tub having an inner tub rotatably installed to hold a laundry for washing and an outer tub holding the inner tub;

a drive means for rotating the inner tub;

a body holding the washing tub and the drive means inside, the body comprising:

a base plate at a bottom of the body;

a pair of side panels on both sides of the base plate;

a rear panel in rear of the base plate and the side panels; and

a top panel on the side panels and the rear panel; and

9. The washing machine as claimed in claim 8, wherein the notch recesses are formed at an outline part of the front panel.

10. The washing machine as claimed in claim 9, the outline part of the front panel comprising:

a top flange bent from a top edge in a rear direction;

a pair of side flanges bent from both side edges in the rear direction; and

a bottom flange bent from a bottom edge in the rear direction.

11. The washing machine as claimed in claim 10, wherein the notch recesses are formed at both ends of the top and bottom flanges.

12. The washing machine as claimed in claim 10, wherein the notch recesses are formed at both ends of the side flanges.

13. The washing machine as claimed in claim 8, wherein the notch recesses are ‘U’-shaped.

14. The washing machine as claimed in claim 8, wherein the notch recesses are formed at one sides of portions where the front panel is assembled to the body.