EP0258769A2 - Appareil en forme d'un instrument d'écriture avec moyens de décharge d'un liquide - Google Patents

Appareil en forme d'un instrument d'écriture avec moyens de décharge d'un liquide Download PDF

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Publication number
EP0258769A2
EP0258769A2 EP87112219A EP87112219A EP0258769A2 EP 0258769 A2 EP0258769 A2 EP 0258769A2 EP 87112219 A EP87112219 A EP 87112219A EP 87112219 A EP87112219 A EP 87112219A EP 0258769 A2 EP0258769 A2 EP 0258769A2
Authority
EP
European Patent Office
Prior art keywords
piston
metering
piston rod
pin
shaped device
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.)
Withdrawn
Application number
EP87112219A
Other languages
German (de)
English (en)
Other versions
EP0258769A3 (fr
Inventor
Otto Dipl.-Ing. Katz
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.)
Faber Castell AG
AW Faber Castell Unternehmensverwaltung GmbH and Co
Original Assignee
AW Faber Castell GmbH and Co
AW Faber Castell Unternehmensverwaltung GmbH and Co
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 AW Faber Castell GmbH and Co, AW Faber Castell Unternehmensverwaltung GmbH and Co filed Critical AW Faber Castell GmbH and Co
Publication of EP0258769A2 publication Critical patent/EP0258769A2/fr
Publication of EP0258769A3 publication Critical patent/EP0258769A3/fr
Withdrawn legal-status Critical Current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
    • A45—HAND OR TRAVELLING ARTICLES
    • A45D—HAIRDRESSING OR SHAVING EQUIPMENT; EQUIPMENT FOR COSMETICS OR COSMETIC TREATMENTS, e.g. FOR MANICURING OR PEDICURING
    • A45D40/00—Casings or accessories specially adapted for storing or handling solid or pasty toiletry or cosmetic substances, e.g. shaving soaps or lipsticks
    • A45D40/26—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball
    • A45D40/262—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like
    • A45D40/264—Appliances specially adapted for applying pasty paint, e.g. using roller, using a ball using a brush or the like movable within the container
    • 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
    • A46B11/0013—Brushes with reservoir or other means for applying substances, e.g. paints, pastes, water with integral reservoirs dispensing by gravity or by shaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
    • B43K—IMPLEMENTS FOR WRITING OR DRAWING
    • B43K5/00—Pens with ink reservoirs in holders, e.g. fountain-pens
    • B43K5/18—Arrangements for feeding the ink to the nibs
    • B43K5/1818—Mechanical feeding means, e.g. valves; Pumps
    • B43K5/189—Pumps

Definitions

  • the invention relates to a pin-shaped device for dispensing flowable masses from a storage container with a brush-shaped application element, which is displaceable from a closable bore of the front part by means of a piston rod which can be actuated against spring action from the rear end of the storage container and is connected to a metering piston which is connected in a Chamber is arranged on the front side of the storage container.
  • the application element which can be in the form of a brush or a conventional fiber-tip pen, is to be supplied with a predetermined amount of flowable mass each time the device is actuated. It must be ensured that the mass in the storage chamber and in the dosing chamber cannot dry out. Also in the feed hole, in which the application element is put back, it is to be prevented that rapid drying out occurs when the closure cap is removed.
  • a pen-shaped device for applying liquids by means of a brush is known.
  • the liquid is fed to the brush from a storage chamber via a kind of metering chamber. Since no actuating element is provided in this device, the brush is only introduced from the metering chamber with the tip pointing downward - under the action of gravity. In this position, the dosing chamber is also not closed, so that drying can take place in the dosing chamber even while working or when left lying open with a brush.
  • a pin-shaped device can be seen in which the application element is connected to a continuous piston rod which can be axially displaced by turning at the rear end of the pin.
  • the application pen also contains a pantry and a metering chamber.
  • a passage opening is opened from the storage chamber to the metering chamber in order to fill the metering chamber with liquid.
  • a type of metering piston is actuated, which supplies a suction pad or a sponge, which is arranged in the feed bore, with liquid. The liquid is transferred from this sponge to the actual application element.
  • this device has the disadvantage that the dosing chamber is not closed to air in the rest position. There is therefore a risk that the liquid can dry out in the metering chamber.
  • the object of the invention is seen in creating a device for dispensing flowable masses from a container, in which the function of the metering is ensured and in which the mass in the storage and metering chamber can certainly not dry out.
  • the application element itself should also be protected from drying out.
  • a device of the type described above is designed according to the features of claim 1.
  • the metered amount of the flowable mass can be precisely predetermined and changed in a simple manner, exclusively by changing the control piston, and adapting it to the nature of the flowable mass. This is achieved when the axial travel of the piston rod is greater than the length of the control piston and greater than the axial travel of the metering piston, the length of the control piston and the axial travel of the metering piston being different.
  • a type of valve is advantageous which allows pressure and volume compensation in the event of pressure differences between the outside atmosphere and the interior of the storage chamber. It is for this purpose moderate in the intermediate wall, which closes the storage chamber to the rear, to form a conical annular groove which tapers to the rear end of the housing and into which an annular seal is inserted which bears against the piston rod and that the annular groove is wider than in the direction of the conical region the ring seal.
  • the metering piston has a support tube which bears against the ring seal in the starting position of the piston rod under the action of the compression spring.
  • the force of the return spring of the piston rod is used to seal the dosing chamber in the rest position.
  • the storage chamber is sealed off from the piston rod by a diaphragm valve which is fastened in a flow bushing to the outer diameter by means of a valve bushing and, in the starting position of the piston rod, bears with the inner diameter on the support tube.
  • the diaphragm valve has the advantage that it responds easily to pressure differences.
  • the seal on the metering piston can also be improved in an advantageous manner, while the principle of the device remains unchanged, if a seal is used which seals the inside and outside diameter.
  • a further membrane-like sealing element is advantageously fastened between the metering piston and the support tube, the sealing element bearing with the inside diameter and with the outside diameter in the sealing cylinder.
  • the device according to the invention can be easily adapted to different viscosities of the mass used if the connection with the front advice chamber to the metering chamber is formed by a flow bushing which is mounted in the housing by means of an annular flange and an intermediate bushing and which has one or more overflow surfaces 45.
  • the outer dimensions of this flow bushing can be kept unchanged, so that the automatically mountable device remains the same in terms of the number and dimensions of the parts used and can nevertheless be adapted to the nature of the flowable mass by changing an individual part.
  • capillary channels which serve as a kind of buffer.
  • An advantageous embodiment of this buffer is achieved in that the connection from the storage chamber to the metering chamber is formed by a flow bushing which is mounted in the housing by means of an annular flange and an intermediate bushing and which has one or more overflow channels.
  • a preassembled unit can be created which contains the changeable parts, while the remaining parts of the device can remain the same.
  • an assembly is created in such a way that the intermediate bushing serves to support the front part of the cylinder bushing and the flow bushing and in turn can be inserted into the housing.
  • a particularly safe function of the metering can be achieved if it is not only frictional, but under the action of a predetermined force.
  • the dosing force can then be set with sufficient accuracy if, according to an advantageous development of the invention, a dosing spring with one end rests on the dosing piston and is guided in the flow bushing and the other end of which is supported on a support wall fixed to the housing.
  • the piston rod is fastened in a guide piston which can be displaced along an inner wall of the housing and has a coupling piece for receiving a closure cap.
  • the device can only be operated after the end cap has been repositioned. Another advantage is also seen in the fact that the user is forced to put on the closure cap at the rear end of the device and thus it cannot be lost. At the same time, better guidance of the piston rod is achieved if it is mounted in a guide piston.
  • a locking mechanism as is already known in ballpoint pens for introducing the writing lead, makes it easier for the user.
  • the application element - similar to a ballpoint pen refill - can be introduced from the housing and locked there.
  • a simple design of such a locking mechanism is achieved when it acts from a direction transverse to the direction of movement of the piston rod a spring displaceable locking element which is lockable in an opening and unlockable by means of a release pin.
  • a stop disk is fixedly attached to the piston rod, which is supported on one side under the action of the compression spring on the intermediate wall of the housing, while on the opposite side the metering spring rests, which at its other end bears against a support ring presses which is connected to a sealing element and a dosing piston.
  • stop disc is designed so that it has a plurality of holes running parallel to its central axis, there is a further advantage.
  • the flowable mass in the storage container is printed through the holes when the piston rod moves and it is changed using the thixotropy effect of the viscosity.
  • the exemplary embodiment of the device for applying flowable compositions according to FIG. 1 consists of a housing 1 which has an intermediate wall 2 to which a flange 3 is molded. In the flange 3 a consiche annular groove 4 is formed and annular recess, which serve as a spring seat 5. A guide bore 6 is also contained in the intermediate wall 2 and a longitudinal groove 7 is formed in the rearward-facing area of the housing 1 and ends at an opening 8.
  • the housing 1 is, in the drawing above, closed by a pressed-in or glued-in collar bushing 9.
  • the flange bushing 9 serves to fasten a ring clip 10, which carries a release pin 11 on its resilient clip leg.
  • a guide piston 12 In the space of the housing 1, which is formed above the intermediate wall 2, a guide piston 12 is used, which has a coupling piece 13 with slots 14. In this guide piston 12, a transverse bore 15 is formed, into which a locking element 16 is inserted, which rests on a spring 17.
  • the guide piston 12 also has a blind hole 18 in which a piston rod 19 is fastened.
  • the piston rod 19 has approximately the length of the housing 1 and carries in its front region a thickening in the form of a control piston 20 which is connected to the piston rod 19 in the form of an outer cone 21 to the rear.
  • the piston rod 19 carries an application element 22, which is preferably designed as a brush, but which can also be a fiber tip, such as is used in the known crayons.
  • the housing 1 is sealed in the front area by a closure cap 23 which is screwed on by means of a thread 24 and thus on one part of the housing 1 by means of a sealing wall 25.
  • the piston rod 19 is held in its end position by a compression spring 26, which brings the guide piston 12 to bear against the collar bushing 9.
  • an intermediate bushing 27 is fastened, which contains an outwardly pointing ring flange 28 and a further ring flange 29, which points inwards.
  • a front part 30 is inserted into the aforementioned intermediate bush 27.
  • the front part 30 there is a feed bore 31 which is widened towards the rear to form an annular recess 32.
  • a sealing ring 33 is contained, which rests against the aforementioned control piston 20 in the rest position.
  • a metering piston 34 is axially movably mounted on the piston rod 19 in a bore 36.
  • the metering piston 34 has a sealing element 35 on its outer circumference and an inner cone 37 is provided at the front end, which is adapted to the outer cone 21 on the control piston 20.
  • the metering piston 34 lies within a cylinder sleeve 38 which has a passage cylinder 39 and a sealing cylinder 40 which are connected to one another by means of a run-up slope 42.
  • a support flange 41 is provided on the cylinder liner 38 on one end face, against which the metering piston 34 can be brought into contact.
  • a flow bushing 43 is inserted into the inner annular flange 29 of the intermediate bushing 27 and abuts there by means of a flange 44.
  • the flow openings are formed by overflow surfaces 45 (see FIG. 4).
  • the flow bushing 43 is guided at the other end on the flange 3 of the intermediate wall 2, as a result of which a supporting wall 47 closes off the conical annular groove 4 and thereby includes an annular seal 48.
  • FIG. 5 Another embodiment of a flow bushing 50 is shown in FIG. 5.
  • a flange 51 is formed, which is penetrated by overflow channels 52.
  • the overflow channels 52 have the advantage that they can be adapted particularly well to the flowable masses, in order to form at this point a type of intermediate store in which a certain amount of the mass to be applied is held, which can be suctioned off from there.
  • FIG. 6 and 7 show a further exemplary embodiment of the device according to the invention, which essentially differs from the prescribed exemplary embodiment according to FIG. 1 only by a modified design of a metering piston 53.
  • a sealing element 54 On the metering piston 53 is a sealing element 54, which is held by a support bush 55 which is continued to the rear end of the container 1 in the form of a support tube 56.
  • a diaphragm valve 57 is thus pressed under the action of the compression spring 26 against the flow bushing 50 by means of the piston rod 19.
  • the membrane valve 57 is fixed on its outer diameter by means of a valve bushing 58, which has a support flange 59 and is pressed into the flow bushing 50.
  • a storage chamber 60 When the device is in use, a storage chamber 60 is completely filled with the flowable mass to be dispensed. To the output page of the device device is present in the interior of the cylinder liner 38, a metering chamber 61. As can be seen from FIG. 1, both the storage chamber 60 and the metering chamber 61 are sealed from the atmosphere in the starting position.
  • a stop disk 72 which has a plurality of holes 73, is seated on the piston rod 70 in a notch 71.
  • the outside diameter of the stop disk 72 corresponds approximately to the inside diameter of the housing 1.
  • a metering piston 74 is also provided here, which is connected to a sealing element 75 and a support ring 76.
  • a holding sleeve 77 serves to fix a diaphragm valve 78 to the intermediate wall 2.
  • the closure cap 23 In order to convey the flowable mass filled into the storage chamber 60 to the application element 22 and to move it into the position of use, the closure cap 23 must first be unscrewed and placed on the coupling piece 13. If a force is now exerted on the closure cap 23, which serves as a push button, the guide piston 12 is moved forward against the force of the compression spring 26. The control piston 20 and the metering piston 34 are thus also moved axially by the piston rod 19. First, the sealing element 35 of the metering piston 34 encounters the run-up slope 42. The metering piston 34 is thereby stopped while the piston rod 19, and with it the control piston 20, moves further forward.
  • the mass can be extracted from the metering chamber 61 into the feed bore 31 be pressed. Only after the metering chamber 61 has been opened is the metering spring 49 able to push the metering piston 34 into the sealing cylinder 40 and thereby supply the mass to the feed hole 31.
  • the path of the metering piston 34 is designated by H in FIG. 2.
  • the locking element 16 is pressed into the opening 8 by means of the spring 17 and there locks the guide piston 12 in its front position.
  • the application element 22 protrudes from the front part 30 and is in a usable state.
  • the application element 22 is filled with the mass, since, as can be seen from FIGS. 1, 2 and 3, when the piston rod 19 is actuated several times, the feed bore 31 is partially filled with mass, which is delivered to the application element 22.
  • the ring seal 48 is provided, which allows air access to the storage chamber 60.
  • An air exchange is favored by the negative pressure that arises in the storage chamber 60 when the metering piston 34 has moved into the sealing cylinder 40.
  • the atmospheric pressure is then greater than the pressure inside the storage chamber 60, so that air can enter from the outside in as a result of the conical design of the annular groove 4.
  • the sealing element 54 which has the shape of a membrane, is arranged directly behind the differently designed metering piston 53. This sealing element 54 is thus at the same time on the sealing cylinder 40 and the outer diameter of the piston rod 19. In this way, an additional sealing of the metering chamber 61 from the atmosphere is achieved.
  • an inevitable seal is provided by the diaphragm valve 57, since the support tube 56 acts on the second diaphragm valve 57 under the action of the compression spring 26 and closes this non-positively in the rest position.
  • the membrane valve 57 can equalize the pressure.
  • the diaphragm valve 57 can be designed so that it reacts very sensitive to pressure.
  • the device according to FIGS. 8 and 9 functions in the same way as the previously described exemplary embodiments.
  • This further configuration makes it possible to reduce the forces for actuating the metering and locking device and thus to provide the user with a particularly smooth-running product.
  • the metering spring 49 does not have to effect the metering stroke H alone with the aid of its bias.
  • the spring force is only required to bring the metering piston 74 into its starting position according to FIG. 8 relative to the piston rod 70.
  • the stop disk 72 is moved and builds up a pretension of the metering spring 49 until it is able to move the metering piston 74, including its sealing element 75.
  • the device can also be designed such that the metering spring 49 is compressed to the block length and only then does the metering piston 74 move. In the latter case, the metering stroke can be used up immediately by the user.
  • the compression spring 26 can therefore be designed so that it only has to overcome the restoring forces for moving the piston rod 70 with all the associated parts.
  • the piston rod 70 is therefore initially presented axially until the control piston 20 leaves the seal 32. Thereafter, either a preload of the metering spring 49 is built up or, alternatively, the metering spring 49 is compressed to the block length. With sufficient preload or block length, the metering piston 74 can be moved by the predetermined stroke. Since the stop disk 72 moves in the storage chamber 60 during this movement, the flowable mass is simultaneously moved as a result of the holes 73. In the case of thixotropic masses, the desired change in viscosity occurs, which results in more favorable flow behavior achieves. The mass is moved through the metering piston 74 into the feed bore 31, where it comes into contact with the application element 22 when it is withdrawn into the position according to FIG. 8.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Coating Apparatus (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Media Introduction/Drainage Providing Device (AREA)
  • Pens And Brushes (AREA)
  • Mechanical Pencils And Projecting And Retracting Systems Therefor, And Multi-System Writing Instruments (AREA)
EP87112219A 1986-08-30 1987-08-22 Appareil en forme d'un instrument d'écriture avec moyens de décharge d'un liquide Withdrawn EP0258769A3 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19863629627 DE3629627C1 (de) 1986-08-30 1986-08-30 Stiftfoermige Vorrichtung zum Abgeben von fliessfaehigen Massen aus einem Vorratsbehaelter
DE3629627 1986-08-30

Publications (2)

Publication Number Publication Date
EP0258769A2 true EP0258769A2 (fr) 1988-03-09
EP0258769A3 EP0258769A3 (fr) 1989-09-06

Family

ID=6308606

Family Applications (1)

Application Number Title Priority Date Filing Date
EP87112219A Withdrawn EP0258769A3 (fr) 1986-08-30 1987-08-22 Appareil en forme d'un instrument d'écriture avec moyens de décharge d'un liquide

Country Status (6)

Country Link
EP (1) EP0258769A3 (fr)
JP (1) JPS6359371A (fr)
CA (1) CA1279609C (fr)
DE (1) DE3629627C1 (fr)
ES (1) ES2001846A4 (fr)
GR (1) GR880300085T1 (fr)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910066A1 (de) * 1988-08-18 1990-03-01 Thomas Peter Vorrichtung zur portionierung und abgabe von fliessfaehigen medien
WO2002102348A1 (fr) * 2002-05-02 2002-12-27 Priscilla S.R.L. Unipersonale Produit anti-vergeture et procede correspondant

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3820450A1 (de) * 1988-06-16 1990-01-04 Geka Brush Georg Karl Gmbh Auftragstift fuer fluessigkeiten
DE3827718A1 (de) * 1988-08-16 1990-02-22 Faber Castell A W Vorrichtung zum auftragen von viskosen substanzen
FR2643290B1 (fr) * 1989-02-20 1991-12-20 Robert Christian Distributeur portatif de liquide, notamment dangereux
JPH0412994Y2 (fr) * 1989-04-04 1992-03-27
DE3923826A1 (de) * 1989-07-19 1991-01-31 Geka Brush Georg Karl Gmbh Stiftfoermige vorrichtung zum auftragen von fliessfaehigen massen
DE3923828C1 (en) * 1989-07-19 1990-12-20 Georg Karl Geka-Brush Gmbh, 8809 Bechhofen, De Fluid applicator ratchet - has centre hole through which plunger passes with play, and coil spring between ratchet and transverse sleeve end wall
JP2515041Y2 (ja) * 1990-04-27 1996-10-23 フィグラ株式会社 塗布又は書写用具
JPH0675600B2 (ja) * 1990-09-14 1994-09-28 テルモ株式会社 塗布具
JP6134982B2 (ja) * 2010-10-06 2017-05-31 ラティオプラスト ゲーエムベーハーＲａｔｉｏｐｌａｓｔ Ｇｍｂｈ 流動性塗布媒体用アプリケータ

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351074A (en) * 1964-07-06 1967-11-07 Bruno D Aston Applicator for cosmetics and the like
EP0208797A1 (fr) * 1985-07-13 1987-01-21 A.W. Faber- Castell Unternehmensverwaltung GmbH & Co. Dispositif pour appliquer des masses capables de couler

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3144676A (en) * 1962-03-07 1964-08-18 Mura Joseph L La Fountain brush
JPS608803B2 (ja) * 1982-06-24 1985-03-06 オクス工業株式会社 液体化粧品塗布具

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3351074A (en) * 1964-07-06 1967-11-07 Bruno D Aston Applicator for cosmetics and the like
EP0208797A1 (fr) * 1985-07-13 1987-01-21 A.W. Faber- Castell Unternehmensverwaltung GmbH & Co. Dispositif pour appliquer des masses capables de couler

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3910066A1 (de) * 1988-08-18 1990-03-01 Thomas Peter Vorrichtung zur portionierung und abgabe von fliessfaehigen medien
WO2002102348A1 (fr) * 2002-05-02 2002-12-27 Priscilla S.R.L. Unipersonale Produit anti-vergeture et procede correspondant

Also Published As

Publication number Publication date
CA1279609C (fr) 1991-01-29
GR880300085T1 (en) 1988-10-21
EP0258769A3 (fr) 1989-09-06
ES2001846A4 (es) 1988-07-01
DE3629627C1 (de) 1988-01-14
JPS6359371A (ja) 1988-03-15

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