Drawer-type washing machine and locking method thereof

• US 6,732,552 B2
• Filed: 07/02/2001
• Issued: 05/11/2004
• Est. Priority Date: 11/13/2000
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Yong Chul, Choi, Byung Keol, Park, Young Hwan, Kim, Hyoun Jin, Kim, Dong Won
• Primary Examiner(s): Stinson, Frankie L.
• Assistant Examiner(s): Perrin, Joseph L
• Application Number:
  US09/895,154
• Publication Number:
  US 20020056293A1
• Time in Patent Office: 1,044 Days
• Field of Search: 134/56.D, 134/56.R, 134/57.D, 134/57.R, 134/58.D, 134/58.R, 312/198, 312/215, 312/222, 312/228, 312/270.3, 68/122.6, 68/122.7, 68/27, 682/10
• US Class Current: 68/12.26
• CPC Class Codes: D06F 34/20 Parameters relating to constructional components, e.g. door sensors
• CPC Class Codes: D06F 39/125 Supporting arrangements for the casing, e.g. rollers or legs

Abstract

The present invention relates to a drawer-type washing machine and a locking method thereof. The washing machine includes a housing having one open side and partitioned into a plurality of compartments; cabinets which can be drawn out forward through the open side of the housing, each of the cabinets being positioned in each of the compartments; washing baths for washing the laundry, each of the washing baths being positioned within each of the cabinets; and locking mechanism provided between the housing and the cabinets for restraining the cabinet from being drawn out forward from the housing. The cabinets are automatically drawn out by only operating a switch installed in an outside wall of the housing.

Claims

1. A laundry washing machine comprising:

a housing having one open side;

a drawer which can be drawn out forward through the open side of said housing, said drawer being positioned within said housing;

a washing bath positioned within said drawer for washing the laundry; and

a rotating driving motor provided between said housing and said drawer for automatically shifting said drawer into and out of said housing.

2. A laundry washing machine according to claim 1, further comprising:

guide panels provided in a side of said drawer for guiding said drawer to be drawn out forward; and

a driving roller provided within said housing, said driving roller being rotational in said guide panel while contacting therewith,

wherein said driving motor rotates said driving roller to shift said drawer forward and backward.

3. A drawer-type washing machine comprising:

a housing having one open side;

a cabinet which can be drawn out forward through the open side of said housing, said cabinet being positioned within said housing;

a washing bath positioned within said cabinet for washing the laundry; and

drawing means provided between said housing and said cabinet for automatically drawing out said cabinet,

wherein said drawing means comprises;

guide panels provided in a side of said cabinet for guiding said cabinet to be drawn out forward;

a driving roller provided within said housing, said driving roller being rotational in said guide panel while contacting therewith; and

a driving motor for rotating said driving roller to shift said cabinet forward and backward.

4. A drawer-type washing machine according to claim 3, wherein said drawing means further comprises a driving gear installed in an axis of said driving motor and a driven gear installed in an axis of said driving roller for engaging into said driving gear.

5. A drawer-type washing machine according to claim 3, wherein said driving roller is made of an elastic material.

6. A drawer-type washing machine according to claim 3, wherein said guide panel has upper and lower rails, each of said rails contacting with said driving roller.

7. A drawer-type washing machine according to claim 3, further comprising a guide rail within said housing and a support roller attached to said cabinet, said support roller being rotational on said guide rail.

8. A laundry washing machine comprising:

a housing having one open side and partitioned into a plurality of compartments;

a plurality of drawers which can be drawn out forward through the open side of said housing, each of said drawers being positioned in each of said compartments;

washing baths for washing the laundry, each of said washing baths being positioned within each of said drawers; and

locking devices provided between said housing and said drawers for preventing one of said drawers from being drawn out forward from said housing when another of said drawers is located outwardly of said housing.

9. A laundry washing machine according to claim 8, wherein said locking devices comprise:

solenoids having actuating rods for linearly moving upon being powered, each of said solenoids being provided within each of said compartments for receiving each of said drawers; and

fitting members for performing a fitting functions upon movement of said actuating rods, each of said fitting members being provided in each of said drawers.

10. A drawer-type washing machine comprising:

a housing having one open side and partitioned into a plurality of compartments;

cabinets which can be drawn out forward through the open side of said housing, each of said cabinets being positioned in each of said compartments;

washing baths for washing the laundry, each of said washing baths being positioned within each of said cabinets; and

locking means provided between said housing and said cabinets for restraining said cabinet from being drawn out forward from said housing,

wherein said locking means comprises;

solenoids having actuating rods for linearly moving upon being powered, each of said solenoids being provided within each of said compartments for receiving each of said cabinets; and

fitting members for performing a fitting functions upon movement of said actuating rods, each of said fitting members being provided in each of said cabinets.

11. A drawer-type washing machine according to claim 10, wherein said locking means further comprises control means, if at least one of said cabinets is opened, for actuating said locking means in the others of said cabinets from being opened.

12. A drawer-type washing machine according to claim 11, wherein said control means comprises:

sensors provided in said housing for detecting open/closed positions of said cabinets; and

a micom for actuating said locking means in response to signals applied from said sensors.

13. A drawer-type washing machine according to claim 12, wherein said sensors are composed of limit switches, in which each of said limit switches is pressed by the side of one of said cabinets to apply an off signal in the closed position of said one of cabinets, and returns to apply an on signal in the open position of said one of cabinets.