EP0407917A2 - Brosse à dents distributrice - Google Patents

Brosse à dents distributrice Download PDF

Info

Publication number
EP0407917A2
EP0407917A2 EP90112987A EP90112987A EP0407917A2 EP 0407917 A2 EP0407917 A2 EP 0407917A2 EP 90112987 A EP90112987 A EP 90112987A EP 90112987 A EP90112987 A EP 90112987A EP 0407917 A2 EP0407917 A2 EP 0407917A2
Authority
EP
European Patent Office
Prior art keywords
piston
pumping device
section
storage space
channel
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
EP90112987A
Other languages
German (de)
English (en)
Other versions
EP0407917A3 (en
Inventor
Michael Dr. Hertrampf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Publication of EP0407917A2 publication Critical patent/EP0407917A2/fr
Publication of EP0407917A3 publication Critical patent/EP0407917A3/de
Ceased legal-status Critical Current

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Classifications

    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B11/00—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water
    • A46B11/001—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs
    • A46B11/002—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means
    • A46B11/0058—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs pressurised at moment of use manually or by powered means with a metered dosage
    • A—HUMAN NECESSITIES
    • A46—BRUSHWARE
    • A46B—BRUSHES
    • A46B2200/00—Brushes characterized by their functions, uses or applications
    • A46B2200/10—For human or animal care
    • A46B2200/1066—Toothbrush for cleaning the teeth or dentures

Definitions

  • the invention relates to a filling toothbrush mentioned in the preamble of claim 1.
  • a filling toothbrush of the type in question in which the storage space is formed by an easily variable in volume shell, which has an opening and is tightly connected to the valve via the edge of its opening, with between a space is formed between the inner wall of the handle and the sleeve, which is connected to the surroundings via a ventilation opening in the wall.
  • the changeable sheath should prevent the tooth cleaning agent from drying out in the sheath.
  • a disadvantage of this construction is that the requirements on the casing, which can have the shape of a bellows, are relatively great. In addition, this case is an additional element that increases the price and also brings with it difficulties in sealing.
  • a filler toothbrush is known from US Pat. No. 4,388,011, which has a hollow handle, in which telescopically telescopic tube parts are provided, which form the storage space. Although this prevents the tooth cleaning agent from drying out, the construction is relatively complex. There is also the disadvantage that there is always a remainder in the storage space when all the tubular elements are telescoped. This leads to a loss of dentifrice. It is in the largest pipe element an inward projection, but this is not able to ensure that the storage space is completely emptied. Finally, there is a further disadvantage in that the individual tube elements require a large amount of material, which increases the price of the finished product.
  • the invention has for its object to provide a filling toothbrush of the type in question, in which a complicated bellows is not required, in which the storage space can be completely emptied and which is simple and cheap in construction.
  • the basic idea of this teaching is to use the hollow handle itself as a cylinder space for a piston arrangement.
  • This cylinder space is divided into individual cylinder sections with a graduated diameter. There is a small, short piston in each cylinder section. If the storage space empties due to negative pressure from the pump device, the piston first moves in the cylinder section with the smallest diameter because this piston extends over the entire cross-sectional area of its cylinder section and thus acts on the hydraulic negative pressure generated by the pump device is. The subsequent annular piston is not initially subjected to a hydraulic vacuum. Therefore, it does not move. This is only the case when the piston in the cylinder section of the smallest diameter abuts the ring-shaped piston in the subsequent section of somewhat larger diameter and thus together with the ring-shaped piston forms a larger piston for the cylinder chamber of larger cross-section.
  • the pistons expediently have cylindrical sealing lips lying against the respective cylinder sections, which not only effect a seal, but also guide the pistons.
  • the floor of the storage space in the area of the pump arrangement is expediently essentially complementary to the contour of the pistons when they are in the next position in the floor.
  • the channel is partially formed by the inside of a tube that runs from the pumping device through the storage space and tightly and displaceably through an opening in the piston with the smallest diameter. This simplifies the handle as a whole, and there is also a possibility of additional guidance of the piston with the smallest diameter on the outside of the tube.
  • the filling toothbrush shown in the drawing has a hollow handle 1 which has a storage space 2 for tooth cleaning agents. At the upper end of the handle 1 there is a handle 3 in which there is an outlet opening 4 in the area of bristles 5. The outlet opening 4 is connected to the storage space 2 via a channel 6. Between the channel 6 and the storage space 2 there is a pump device 7, which is not shown in detail since it is not important for the understanding of the invention.
  • the pump device has an actuating element 8 in the form of a compressible membrane.
  • Valve is provided which closes when the pump device 7 is actuated and causes a tooth cleaning agent to be conveyed in the channel to the outlet opening 4 and which opens when the pump device is reset to retirement, so that tooth cleaning agent can flow in from the storage space 2.
  • the inside of the handle 1 is gradually cylindrical with cylinder sections 9 and 10, the diameter or cross section of which is different in stages, namely the cross section of the cylinder section 10 closer to the pump device 7 than the cylinder section 9.
  • a piston 11 which has a cylinder-like sealing lip 12 which bears against the inner wall of the cylinder section 9.
  • an inner, cylindrical sealing lip 13 is provided, with which the piston 11 tightly encloses a tube 14, which connects the pump device 7 to the stem 3 and the interior of which forms part of the channel 6.
  • a piston 15 which bears against the wall of the cylinder section 10 with a cylindrical, circumferential sealing lip 16. It is ring-shaped, a cylindrical ring surface 17 having the same inner diameter as the cylinder section 9 and thus being able to tightly receive the piston 11. It abuts a stop 18 designed as a radial inner projection.
  • a bottom 19 of the storage space 2 is complementary to the facing surface of the piston 11 or the piston 15, so that when the pistons 11 and 15 are in the lowest position in the drawing, there is no more dead space between the pistons 11 and 15 and the bottom 19 is present so that all of the dentifrice can be emptied.
  • tooth cleaning agent located in the storage space is pressed through the channel 6 to the outlet opening 4 and thus to the bristles 5.
  • the resulting in the storage space 2 vacuum acts on the underside of the piston 11, so that this moves in the direction of the pump device 7 in accordance with the amount of tooth cleaning agent conveyed.
  • the pump device is actuated until the piston 11 has tightly entered the receptacle formed by the annular surface 17 and the stop 18.
  • the piston 11 also takes the piston 15 with them, both together close the cross section of the cylinder section 10 until this is also emptied.

Landscapes

  • Brushes (AREA)
EP19900112987 1989-07-12 1990-07-07 Dispensing tooth brush Ceased EP0407917A3 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE3922850 1989-07-12
DE3922850A DE3922850C1 (fr) 1989-07-12 1989-07-12

Publications (2)

Publication Number Publication Date
EP0407917A2 true EP0407917A2 (fr) 1991-01-16
EP0407917A3 EP0407917A3 (en) 1991-07-24

Family

ID=6384774

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19900112987 Ceased EP0407917A3 (en) 1989-07-12 1990-07-07 Dispensing tooth brush

Country Status (4)

Country Link
US (1) US5087143A (fr)
EP (1) EP0407917A3 (fr)
JP (1) JPH03215210A (fr)
DE (1) DE3922850C1 (fr)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4405765C2 (de) * 1994-02-23 1996-01-18 Braun Ag Gehäuse für ein elektrisch betriebenes Gerät des persönlichen Bedarfs
US5882134A (en) * 1996-10-09 1999-03-16 Hatch; Nigelle V. Dispensing toothbrush
US5909977A (en) * 1997-03-31 1999-06-08 Kuo; Youti Dentifrice dispensing toothbrush with refillable cartridge
DE102011012560A1 (de) 2011-02-26 2012-08-30 Sensoom Gmbh Pumpsystem
USD785797S1 (en) 2014-02-28 2017-05-02 Young Microbrush, Llc Dental dispensing tip
US9427079B2 (en) * 2014-02-28 2016-08-30 Young Microbrush, Llc Dental dispensing tip and method of manufacturing

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603475C1 (en) * 1986-02-05 1987-07-02 Hertrampf Michael Fillable toothbrush

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1008463A (fr) * 1950-01-17 1952-05-19 Stylomine Ets Perfectionnements aux stylographes à bille
US4388011A (en) * 1979-09-20 1983-06-14 Smith Donald R Material dispenser toothbrush
US4692047A (en) * 1983-04-20 1987-09-08 Sasuke Endo Brush for applying material in liquid or emulsion form
US4733983A (en) * 1986-03-11 1988-03-29 Michael Hertrampf Dispenser toothbrush

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3603475C1 (en) * 1986-02-05 1987-07-02 Hertrampf Michael Fillable toothbrush

Also Published As

Publication number Publication date
DE3922850C1 (fr) 1990-08-02
EP0407917A3 (en) 1991-07-24
US5087143A (en) 1992-02-11
JPH03215210A (ja) 1991-09-20

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