Tank device for flushing toilet bowl
AssigneeToto Ltd.
InventorsKinya Arita, Shinji Shibata, Hiroyuki Matsushita
Life of this patent
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Abstract
A tank device for flushing a toilet bowl includes a tank body for storing toilet bowl-flushing water. The tank body has an opening at the bottom. One or more support arms are arranged within the tank body and are pivotally mounted to supports. A valve body is secured to one end of the support arms. The valve body comes into close contact with the opening of the tank body. A delaying structure for delaying a motion of the valve body is attached to the support arms. An activator for pulling up the valve body is fitted to the tank body. Delaying the valve closing motion of the valve body allows the stored water within the tank body to be used as flush water for the toilet bowl, until the stored water drops near the bottom.
Claims17
A tank flushing device for flushing a toilet bowl comprising:
- a tank body for storing flush water, said tank body having an opening at a bottom thereof;
- a first pivot support mounted within the tank body;
- a first support arm arranged for pivoting movement about said first pivot support;
- a valve body secured to said first support arm, said valve body lying in a first plane and adapted to come into close contact with said opening at said bottom of said tank body;
- a damping plate secured to said first support arm for developing a surface tension with an upper surface of the flush water within the tank body, said damping plate lying in a second plane which is oriented at an angle relative to the first plane of said valve body;
- and
- an activator to impart a movement to said valve body relative to said opening at said bottom of said tank body.
A tank flushing device comprising:
- a valve for closing an opening in a flush water tank, wherein said valve includes:
- a first flow stopping member having an outer dimension larger than a size of the opening in the flush water tank, said first flow stopping member having a through-hole formed therein;
- and a second flow stopping member movably mounted to open and close said through-hole in said first flow stopping member, wherein said first manner of activation of said valve entails moving said first flow stopping member relative to the opening in the flush water tank and said second manner of activation entails moving said second flow stopping member relative to said through-hole in said first flow stopping member;
- an activator for activating said valve to allow flush water to flow past said valve and through the opening in the flush water tank, wherein said activator can activate said valve in a first manner to allow a first quantity of water to flow past said valve, and said activator can activate said valve in a second manner to allow a second quantity of water, which is less than said first quantity of water, to flow past said valve;
- a first pivot support mounted within the flush water tank;
- a first support arm arranged for pivoting movement about said first pivot support;
- said first flow stopping member secured to said first support arm;
- a first damping plate secured to said first support arm for developing a surface tension with an upper surface of the flush water within the tank body;
- and
- a second support arm arranged for pivoting movement within said flush water tank, wherein said second flow stopping member is secured to said second support arm.
Dependencies are inferred from the claim text.