Washing pulsator equipped with rotation current washing wings

• US 5,680,780 A
• Filed: 01/04/1996
• Issued: 10/28/1997
• Est. Priority Date: 05/16/1995
• Status: Expired due to Term

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Yong Sik, Song, Hack Jae
• Primary Examiner(s): Coe, Philip R.
• Application Number:
  US08/582,704
• Time in Patent Office: 663 Days
• Field of Search: 68/134
• US Class Current: 68/134
• CPC Class Codes: D06F 17/10 Impellers

Abstract

A washing pulsator of a washing machine being provided with wings includes a cam assembly installed being movable up and down above an upper center portion; a plurality of current-forming ribs formed at an outer circumference of the cam assembly and being radially protruded toward the outer circumference from the center of an upper surface of the washing pulsator; a plurality of auxiliary rib, each of which is formed between the current-forming rib and radially protruded being shorter than the current-forming rib; and a rotating shaft installation aperture formed in front of the end tip of each of the auxiliary rib, the rotation current washing wings being installed to be capable of being inserted and detached in and from the rotating shaft installation aperture, thereby reducing textile entanglement and improving washing effect.

Claims

1. In a washing machine having a pulsator disposed for rotation within a central lower portion of an inner tub thereof, which pulsator includes a cam assembly disposed at a central portion of the pulsator, a plurality of current-forming ribs extending radially from the central portion of the pulsator, and a plurality of auxiliary ribs extending radially from the central portion of the pulsator and positioned intermediately between said current-forming ribs and being shorter than said current-forming ribs, the improvement comprising:

a rotating shaft installation aperture formed at a portion radially extending from an end tip of each of said auxiliary ribs; and

a rotation current washing wing detachably inserted into said rotating shaft installation aperture.

2. The washing pulsator of claim 1, wherein each said current-forming rib is streamlined at those portions which are connected to said washing pulsator, and a prong rib having a two-forked shape is formed at radially extended end portions thereof.

3. The washing pulsator of claim 1, wherein said rotation current washing wing is installed to be rotatable under water pressure without any additional driving mechanisms.

4. The washing pulsator of claim 1, wherein said rotation current washing wing includes:

an upper hemispherically-shaped body;

a plurality of stumbling protrusions formed on an upper surface of said body and radially extending therefrom; and

a rotating shaft extending to a lower side of said body, and having a snappable portion at a lower end thereof for being inserted into the rotating shaft installation aperture in the pulsator.

5. The washing pulsator of claim 4, wherein a wedge-type hook is formed at an end portion of said snappable portion.

6. The washing pulsator of claim 1, wherein said rotation current washing wing includes;

an upper hemispherically-shaped body;

a plurality of stumbling protrusions formed on an upper surface of said body and radially extending therefrom; and

a rotating shaft extending from a lower side of said body, and having a protrusion on an inner surface thereof; and

a brushing being inserted in the rotating shaft installation aperture formed in the pulsator and having a protrusion at an outer surface thereof to interlock with the protrusion of the rotating shaft.