Classifications

• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
  • E03D5/02—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor
  • E03D5/04—Special constructions of flushing devices, e.g. closed flushing system operated mechanically or hydraulically (or pneumatically) also details such as push buttons, levers and pull-card therefor directly by the seat or cover combined with devices for opening and closing shutters in the bowl outlet and/or with devices for raising and lowering seat or cover; Raising or lowering seat and/or cover by flushing or by the flushing mechanism
• • E—FIXED CONSTRUCTIONS
  • E03—WATER SUPPLY; SEWERAGE
  • E03D—WATER-CLOSETS OR URINALS WITH FLUSHING DEVICES; FLUSHING VALVES THEREFOR
  • E03D5/00—Special constructions of flushing devices, e.g. closed flushing system
  • E03D5/12—Special constructions of flushing devices, e.g. closed flushing system discharging periodically

Definitions

• the present invention relates to automatic flushing devices, for toilets, and more particulalarly, to such devices that are completely inside the toilet tank.
• Figure 1 represents a front view of the tank with its front wall removed, showing the different elements of the present invention before the user sits down, and ti phantom it represents the position of the actuator after the user sits down.
• Figure 2 illustrates the device after being tripped by the user's action of standing up.
• Figure 3 is a top view of the toilet and tank without its cover.
• Figure 4 is a side view of the toilet illustrating the invention housed inside the tank.
• Figure 5 is an enlarged view of some of the details of spring 69, arm 7 and member 51.
• FIG 1 where the present invention is referred to in general by numeral 100, it can be observed that this illustration represents the interior of a toilet tank with conventional float actuated valve assembly 15 on the left.
• the mechanism of assembly 15 will not be discussed here since it is well known and it is not a part of the invention herein claimed.
• the important feature of assembly 15 being that after the water inside tank 2 achieves a predetermined level its valve is either open or closed.
• the present improved automatic toilet flushing device 100 is actuated through a rigid arm 7 that is horizontally mounted on the toilet's seat bottom and positioned in cooperation with elongated member 51 which is spring 69 biased, within tube 56 urging member 51 downwardly towards arm 7 in such a manner as to lift toilet seat 4, slightly, when no one is sitting on it as shown in Figure 4.
• the spring bias action is overcome when the user sits down, causing arm 7 to push member 51 upwardly which in turn makes cam assembly 59 move upwardly since it is rigidly mounted on the upper end of member 51.
• Cam assembly 59 like in the preferred embodiment disclosed in the parent application, now U.S. patent No.
• 4,329,745 comprises a cover 61 housing a spring biased actuating pin 62 having a cam termination that comes in contact with a cooperating surface 89 on actuating link 86.
• Link 86 pivots on point P which is a fixed point with respect to tube 56 that guides cam assembly 59.
• the other end of link 86 is hingedly connected to shoe member 85 that fits abuttingly with shoulder 84 of rigid lever 80 therby providing a tripping mechanism that counteracts the upward force F applied at point 0 by floating member 20.
• force F as shown in Figure 1 will be offset by the vertical component of the reaction force produced by the shoe member 85 and actuating link 86 assembly which is directed to the left along rigid lever 80.
• cam assembly When cam assembly travels upwardly, as shown in phantom in Figure 1, spring biased actuating pin 62 passes cooperating cam termination 89 of actuating link 86, engaging it from its upper surface. This operation occurs when the user sits down, thereby setting it ready to trigger the tripping mechanism composed of shoe 85 and link 86 when the user gets up.
• the reation force along lever 80 is lost and floating force F creates a clockwise torque pulling chain 88, as shown in Figure 2, causing the water in tank 2 to drain out through drain valve 98 flushing the toilet.
• drain or flush valve 98 In the conventional toilet, drain or flush valve 98 usually has an air trap that makes it float somewhat so that when it is pulled up by chain 88 it remains above drain opening 90 thereby allowing the water in the -tank to drain out.- It is not unusual to find toilets where flush valve 98 falls on opening 90 unless the user keeps his hand on the actuating lever. This problem is solved with floating member 20, separating the floating function required to make valve 98 to stay open from the valve function itself. The present invention will insure then that valve 98 will stay open until the water level has achieved a certain predetermined level in a similar manner as it is done with the conventional float actuated valve assembly 15.
• floating member 20 drops down to the position shown in Figure 1, allowing flush valve 98 to come down and close drain opening 90.
• the tripping mechanism composed of shoe member 85 and actuating link 86 will have locked rigid lever 80 in place, preventing it from rotting clockwise.
• cam assembly 59 engages cooperating cam termination 89 of actuating link 86, as shown in phantom in Figure 1.
• the above referenced tripping mechanism is triggered allowing lever 80 to rotate clockwise by the upward floating force of floating member 20.
• valve 98 in the preferred embodiment, is connected to tubular member 130 which in turn is connected to chain 88. Guiding member 120 keeps tubular member 130 in place. It is believed the foregoing description conveys the best understanding of the objects and advantages of the present invention. Different embodimens may be made of the inventive concept of this invention. It is to be understood that all matter disclosed herein is to be interpreted merely as illustrative, and not in a limitating sense, except as set forth in the following appended claims.

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• Engineering & Computer Science (AREA)
• Aviation & Aerospace Engineering (AREA)
• Health & Medical Sciences (AREA)
• Life Sciences & Earth Sciences (AREA)
• Hydrology & Water Resources (AREA)
• Public Health (AREA)
• Water Supply & Treatment (AREA)
• Mechanical Engineering (AREA)
• Sanitary Device For Flush Toilet (AREA)

Applications Claiming Priority (1)

Publications (1)

Family

ID=22182127

Family Applications (1)

Country Status (2)

Family Cites Families (8)

• 1984
  • 1984-04-23 WO PCT/US1984/000630 patent/WO1985004919A1/en not_active Ceased
  • 1984-04-23 EP EP19840902116 patent/EP0178302A1/de not_active Withdrawn

Non-Patent Citations (1)

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