Detergent dispenser for clothes washing machines or the like

• US 5,063,757 A
• Filed: 04/30/1990
• Issued: 11/12/1991
• Est. Priority Date: 05/13/1989
• Status: Expired due to Term

• Current Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Ikeda, Yoshio, Okazaki, Kiyoshi
• Primary Examiner(s): Shaver, Kevin P.
• Application Number:
  US07/516,782
• Time in Patent Office: 561 Days
• Field of Search: 222/231, 222/236, 222/238, 222/547, 222/564, 222/504, 222/517, 222/556, 222/545, 222/651, 222/531, 222/533, 68/17 R, 134/93, 198/535, 198/536
• US Class Current: 68/17.00R
• CPC Class Codes: D06F 39/026 the powder or tablets being added directly, e.g. without the need of a flushing liquid

Abstract

A detergent dispenser for clothes washing machines includes a detergent container for containing a predetermined amount of powdered detergent, the detergent container having a lower discharge outlet from which the detergent contained therein is discharged and a detergent fall preventing member displaced between a first position where the detergent is prevented from falling out from the discharge outlet of the container and a second position where the detergent discharged from the discharge outlet of the detergent container is allowed to fall out therefrom.

Claims

1. A detergent dispenser, for use in a clothes washing machine or the like for dispensing detergent into a clothes washing tub, comprising:

a) a detergent container for containing a predetermined amount of powdered detergent;

b) a detergent discharge passageway which communicates with the detergent container through the bottom of the detergent container so that the powdered detergent is fed from the container to the passageway, the detergent discharge passageway having a discharge outlet at one end;

c) detergent discharging means for feeding the powdered detergent in the detergent discharge passageway to the discharge outlet at a detergent dispensing step;

d) a closure member mounted at the discharge outlet and moveable between a usual, closed position at which it closes the discharge outlet and an opened position at which it opens the discharge outlet at the detergent dispensing step;

e) a detergent fall preventing member mounted beneath the discharge outlet so as to be moved between first and second positions, the detergent fall preventing member receiving the detergent from the discharge outlet when occupying the first position, thereby preventing the detergent discharged from the discharge outlet from falling to the tub, and the detergent fall preventing member, when at the second position, allowing the detergent discharged from the discharge outlet to be dispensed to the tub; and

f) operating means for reciprocally moving the detergent fall preventing member between the first and second positions.

2. A detergent dispenser according to claim 1, wherein the operating means comprises an electric motor connected to the detergent fall preventing member to drive it from the first position to the second position, a spring member urging the detergent fall preventing member so that the same is moved from the second position to the first position, and a governor mechanism provided between the motor and the detergent fall preventing member for decreasing the speed of the detergent fall preventing member when the same is moved from the second position to the first position.

3. A detergent dispenser according to claim 1, wherein the detergent fall preventing member is extended from below the discharge outlet of the detergent discharge passageway to the tub and the detergent fall preventing member is inclined at the second position so that the detergent discharged from the discharge outlet is received and then slips down along the detergent fall preventing member toward the tub.

4. A detergent dispenser according to claim 1, further comprising engagement means coupling the closure member to the detergent fall preventing member for moving the closure member to the opened position in response to movement of the detergent fall preventing member from the first position to the second position.

5. A detergent dispenser according to claim 3, wherein the detergent fall preventing member has a water repellent surface along which the detergent is dispensed.

6. A detergent dispenser according to claim 3, which further comprises water supply means for supplying water to the tub through the detergent fall preventing member at the second position in a water supply operation so that water together with the detergent are supplied to the tub, the detergent fall preventing member being moved from the second position to the first position by the operating means a predetermined period of time after completion of the water supply operation by the water supply means.