Classifications

• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01G—WEIGHING
  • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
  • G01G19/44—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups for weighing persons
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01G—WEIGHING
  • G01G19/00—Weighing apparatus or methods adapted for special purposes not provided for in the preceding groups
  • G01G19/52—Weighing apparatus combined with other objects, e.g. furniture
• • G—PHYSICS
  • G01—MEASURING; TESTING
  • G01G—WEIGHING
  • G01G23/00—Auxiliary devices for weighing apparatus
  • G01G23/18—Indicating devices, e.g. for remote indication; Recording devices; Scales, e.g. graduated
  • G01G23/36—Indicating the weight by electrical means, e.g. using photoelectric cells

Definitions

• the invention relates to a device for weighing people on a seat of a toilet.
• the object of the device according to the invention is to make these possible weight fluctuations known without any particular obligation of monitoring, by locating the weighing device in a place of passage which is compulsory for each individual from civilized countries, namely the seat of W.C.
• the weight measurement is carried out by means of force sensors, or strain gauges, cooperating with an electronic computer defining the weight measured by said sensors and delivering a signal ' , at through an electronic formatting means to a digital display means, for example liquid crystal or other.
• the display can be outside the seat. Any known means of measurement can be used to provide a weight.
• the weighing is carried out by means of hydraulic sensors as described in French patent n ° 84 18 936. It comprises at least three support points on the toilet bowl made directly with the hydraulic sensors molded in one piece only with the seat of the toilet seat; the joint of the telescope has sufficient play so as not to disturb the measurement.
• Said sensors each consist of a cylinder filled with hydaulic pressure transmitting fluid and closed in leaktight manner by a flexible membrane resting on a shouldered piston bearing on the bowl, guided and maintained by an extension of the sensor.
• the piston is replaced by a semi-rigid membrane fixed to the base of each of the sensors and having the function of allowing the setting in direct static pressure of the transmitting fluid as a function of the weight of the user, said pressure being displayed on a known type of measurement means, for example a needle pressure gauge disposed on an extension at the front of the telescope.
• - Fig.1 shows, in top view, an exemplary embodiment of the device weighing according to the invention
• - Fig.2 shows, in section AA of Fig.1, an example of arrangement of the weight measurement means
• - Fig.3 shows, seen in perspective, an example of external weight display
• FIG.4 shows schematically, in top view, the hydraulic weighing device adapted according to the invention
• - Fig.5 shows, in section along BB of Fig.4, the integration of a hydraulic sensor on a seat window of W.C;
• - Fig.6 shows a variant of a hydraulic sensor also integrated by molding in the telescope
• the device according to the invention comprises three force sensors 1,2,3 arranged in a triangle resting on the upper edge of the bowl 11; Said sensors are integrated into the telescope 4 and joined by electrical conductors 5 to an electronic unit 6 supplied by an electronic power supply provided with a battery 7; said block further comprises. a means of shaping the measurement signals delivered by the sensors transmitting the total weight to a digital display means 8 arranged on an extension 9 of the front of the telescope 4.
• the measurement signal can be transmitted by wire to an external display means 13 (fig. 3) or else be sent wirelessly by a transmitter to an appropriate electromagnetic receiver of known types. You can also use a text-to-speech block controlled by a switch.
• Fig.2 shows the arrangement of the measurement sensors 1,2,3 integrated into the bezel 4. Said sensors are supported on the upper edge 10 of the bowl 11.
• the bezel 4 is articulated at the rear following the axis XX, either in an oblong opening, or in a hole 12 having sufficient play so as not to introduce parasitic stresses during the measurement.
• the po-ds information can be displayed permanently or only periodically to save the battery, or even by pressing a fleeting action button.
• Said ticket can be wiping paper from W.C.
• the weight information can also be provided by a mechanical display means of known type.
• a mechanical display means of known type.
• it can be stiffened by using, for example, a wire mesh stamped into the shape of the seat and molded in plastic material of appropriate mechanical rigidity.
• You can also use the bezel cover of the traditional toilet seat to include a known type of scale.
• the weighing seat is suitable for carrying out weighing. when you sit on it. It includes a telescope 15 articulated at the rear along the ZZ axis with sufficient play to avoid disturbing the measurement. Three sensors 16, 17, 18 are arranged in a triangle so as to balance the load, said sensors are connected in series by hydraulic lines 19, 20, the assembly forming a hydraulic circuit under pressure. The weight measurement is carried out by a needle pressure gauge 21 connected to the circuit and arranged, for example, at the front of the telescope on an extension 22 so as to highlight it for the user, or else by a sensor by force.
• the semi-rigid membrane 28 has been replaced (fig. 6) by a flexible membrane 30 soli ⁇ darrise by bonding to an intermediate boss 31 replacing the boss 27, in a corresponding annular groove of a boss 32 ending in a shoulder 33 receiving a shouldered piston 34 disposed between the membrane 30 and the shoulder 33 of the extension 32, guided in the bores 26 and 35, the base of said piston being in abutment on the edge 29 of the bowl.
• the sensors 16, 17, 18 and the pipes 19, 20 are filled with an orifice 36 formed in a boss 37 (FIG. 7) into which one of the pipes 19, 20 opens.
• This orifice is closed in a leaktight manner by a screw 38 until the shoulder of the pistons 34 bears on the corresponding shoulder of the bosses 32, (fig. 6).
• a nozzle 40 on which is mounted a pipe 41 connected to the pressure gauge 21 (fig.4).
• any known means of measurement, piezoelectric, strain gauge, etc., and of displaying the weight capable of continuously translating the weight of the user, can be used.
• FIGs. 8 and 9 show a simplified variant of a weighing means combining a channel • hydraulic pipe 50 as a weight sensor in the form of a pressure measured at one end of said pipe, for example by a strain gauge disposed in a block 51 comprising a nozzle 52 on which the pipe 50 is mounted , the gauge being protected from the pressure transmitting liquid by a membrane. separation, the other end of said pipe receives a nozzle 53 into which is screwed a screw 54 for zero adjustment allowing the filling of the transmitting liquid.
• Said pipe 50 which can be a simple plastic pipe, is secured to the telescope; it can for example be glued into a molded groove. A large part of its length rests on the top of the bowl.
• the force sensor cooperates with an electronic unit 55 for shaping the signal for measuring the pressure of the transmitting liquid to make it compatible with a weight display means 8 disposed on the front of the bezel 9. It is also possible to use a compatible precision manometer, graduated in kilograms in place of the strain gauge.
• the weight measurement sensor in FIG. 1 consists of three active strain gauge blades mounted in series in a Wheatstone bridge.
• the blades are each mounted towards the epicenter of the seat and the sensitivity of each of them is adjusted by playing in particular on the flexibility of the fulcrum of its support to deliver an identical output signal for the same weight.
• the part of their support bearing on the cuvette is made of semi-rigid material.

Landscapes

• Physics & Mathematics (AREA)
• General Physics & Mathematics (AREA)
• Measuring Fluid Pressure (AREA)
• Bidet-Like Cleaning Device And Other Flush Toilet Accessories (AREA)
• Toilet Supplies (AREA)

Applications Claiming Priority (4)

Publications (1)

Family

ID=26223899

Family Applications (1)

Country Status (3)

Families Citing this family (36)

Family Cites Families (9)

• 1985
  • 1985-04-01 WO PCT/FR1985/000071 patent/WO1985004472A1/fr not_active Application Discontinuation
  • 1985-04-01 US US06/810,384 patent/US4697656A/en not_active Expired - Fee Related
  • 1985-04-01 EP EP85901469A patent/EP0175730A1/de not_active Withdrawn

Non-Patent Citations (1)

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