EP3274100A1 - Dispenser for discharging liquid to pasty masses - Google Patents

Dispenser for discharging liquid to pasty masses

Info

Publication number
EP3274100A1
EP3274100A1 EP16712786.9A EP16712786A EP3274100A1 EP 3274100 A1 EP3274100 A1 EP 3274100A1 EP 16712786 A EP16712786 A EP 16712786A EP 3274100 A1 EP3274100 A1 EP 3274100A1
Authority
EP
European Patent Office
Prior art keywords
valve
inlet valve
lip
section
dispenser
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.)
Granted
Application number
EP16712786.9A
Other languages
German (de)
French (fr)
Other versions
EP3274100B1 (en
Inventor
Jürgen Schröder
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.)
Aptar Villingen GmbH
Original Assignee
Aptar Villingen GmbH
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 Aptar Villingen GmbH filed Critical Aptar Villingen GmbH
Publication of EP3274100A1 publication Critical patent/EP3274100A1/en
Application granted granted Critical
Publication of EP3274100B1 publication Critical patent/EP3274100B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B05B11/1035—Pumps having a pumping chamber with a deformable wall the pumping chamber being a bellow
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/0005—Components or details
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1028—Pumps having a pumping chamber with a deformable wall
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
    • B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
    • B05B11/00—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use
    • B05B11/01—Single-unit hand-held apparatus in which flow of contents is produced by the muscular force of the operator at the moment of use characterised by the means producing the flow
    • B05B11/10—Pump arrangements for transferring the contents from the container to a pump chamber by a sucking effect and forcing the contents out through the dispensing nozzle
    • B05B11/1042—Components or details
    • B05B11/1066—Pump inlet valves
    • B05B11/1067—Pump inlet valves actuated by pressure
    • B05B11/1069—Pump inlet valves actuated by pressure the valve being made of a resiliently deformable material or being urged in a closed position by a spring

Definitions

  • Dispenser for dispensing liquid to pasty masses
  • the invention relates to a dispenser for dispensing liquid to pasty masses, comprising a pump head and a pump chamber having a pumping chamber having a inlet and an outlet valve, wherein the pumping chamber is formed by a bellows, to which in any case the inlet valve integrally formed further, the intake valve is supported by support arms extending in the circumferential direction of the intake valve, which are connected to the pumping chamber wall and to the intake valve, and the intake valve forms a circumferential, free-cutting circumferential valve lip.
  • Donors of the type in question are known.
  • the pump chamber designed as a bellows part has a flexible pumping chamber wall.
  • This consists in particular of a soft plastic material, further in particular of an elastically resilient plastic material. Integral and possibly the same material hereby the inlet valve is formed.
  • a technical problem of the invention is seen in a donor of the type in question, in particular with regard to the function of the intake valve to further improve.
  • a possible solution of the problem is given according to a first inventive concept in a dispenser, which is geared to the inlet valve in a (central) longitudinal cross-section of the bellows part circular section, with an upper portion and the lower valve lip, wherein the connection to the support arms at a height center of the inlet sventils or offset from this towards a free edge of the valve lip is formed.
  • the longitudinal section extends in the middle of the bellows part, receiving a longitudinal axis of the same, wherein the longitudinal axis in this longitudinal section is a line.
  • the dome section extends in particular in the inlet valve closed position in the longitudinal cross-section convex in the direction of the bellows interior or in the direction of the pump chamber interior facing. This leads advantageously in a donor operation in particular via the pressure of the mass in the pumping chamber to a favorable load of the intake valve in the direction of the sealing seat.
  • the pressure can act through the dome-like configuration of the inlet sventiles evenly over the circumference of the lower valve lip.
  • the valve closure position can thereby be supported in an advantageous manner.
  • connection of the support arms may be formed in a center of the inlet valve, wherein the center of the height preferably refers to the entire extension length of the inlet valve, starting from the valve lip to the coupling center, as viewed in the direction of extension of the longitudinal axis of the pumping chamber. Also, this connection can be offset from the center of the height formed in the direction of the free edge of the valve lip, corresponding to a smaller distance to the valve lip than the Kuppelzenit (with respect to the extension length in the direction of the longitudinal axis).
  • connection can also be formed in the transition of the upper dome section in the lower valve lip.
  • the dome-like configuration of the inlet valve in this case preferably extends alone above the connection region for the support arms.
  • the valve lip may be substantially rectilinear with respect to the longitudinal cross-section, and may not increase in accordance with the circular segment-shaped course of the dome section.
  • the dome portion may form a semicircle in the longitudinal cross-section together with the valve lip substantially.
  • the valve lip can in this case with respect to a longitudinal cross-section substantially tangentially transition into the circular segment course of the dome portion.
  • the height of the inlet valve in the longitudinal extent of the pumping chamber (with respect to an inlet valve closure position) between a plane defined by the free end of the lower valve lip and a plane extending parallel thereto, the zenith of the dome section tangent plane can about half the diameter of the inlet s valve in the area of the valve lip, alternatively 0.3 to 0.7 times the diameter.
  • the semicircle which may be imaged in the longitudinal cross-section may have rectilinear sections with respect to the contour, for example in the zenith region of the dome section; moreover, as preferred, in the area of the valve lip.
  • the Wandungs strength of the dome section may be greater than the wall thickness of the valve lip.
  • a wall thickness of the dome portion is preferably provided, which corresponds to 1.2 to 3 times, more preferably about 1.5 to 2 times the wall thickness in the region of the valve lip.
  • the wall thickness in the region of the dome section is preferably chosen to be at least approximately constant over the entire extension region.
  • the ranges or value ranges or multiple ranges given above and below also include all intermediate values, in particular of 1/10 increments of the respective dimension, if necessary also di- mensionslos.
  • the specification of 0.3 to 0.7 times also includes the disclosure of 0.4 to 0.7 times, 0.3 to 0.6 times, 0.4 to 0.6 times, etc.
  • the disclosure of 1.2 to 3 times also the disclosure of 1.3 to 3-fold, 1.2 to 2.9-fold, 1.3 to 2.9-fold, etc.
  • This disclosure can on the one hand to the limitation serve a specified range limit from below and / or above, alternatively or additionally but for the disclosure of one or more singular values from a respective specified range.
  • FIG. 1 shows a dispenser of the type in question in a longitudinal sectional view
  • FIG. 2 shows the enlarged area II in FIG. 1;
  • Figure 3 shows a Belgteil in cut, perspective view.
  • a dispenser 1 essentially consisting of a pump head 2 and a storage container 3, is shown and described.
  • the pump head 2 is designed to dispense a liquid to pasty mass 4, which is stored in the container 3.
  • the pump head 2 may be formed in a modular manner and inserted from above into the storage container 3.
  • the connection between the storage container 3 and the pump head 2 is achieved by means of an adapter part 5.
  • the adapter part 5 is essentially cup-shaped with a pointing upwards for receiving the pump head 2 pot opening.
  • the pot outer wall of the adapter part 5 is provided with encircling, preferably ring-like protrusions or recesses, for clamping support of the storage container 3, and more preferably for clamping support of a pump head 2 in the non-use position catching cap 6.
  • the adapter part 5 is preferably based on a wall shoulder 7 formed on the outside of the circumferential pot wall on the peripheral opening edge of the storage container 3.
  • the adapter part 5 further forms a telescope outer part 8 for the linearly displaceable receiving of the correspondingly a telescopic inner part 9 ausformenden pump head. 2
  • the pump head 2 is provided with a preferably concentric with a longitudinal center axis x of the dispenser 1 rotating telescopic inner wall 10. This is in the adapter part 5 inside the wall, the telescopic outer wall 11 out forming pot wall out.
  • the pump head 2 has a pumping chamber 12 which consists of a flexible bellows part 13.
  • the bellows part 13 is in a central longitudinal cross-section as shown in FIG. 1, the longitudinal axis x being in the sectional plane as a line, zigzagging formed running course. In a transverse horizontal section considered this results in an annular configuration of the bellows 13th
  • This is preferably a plastic injection-molded part made of a correspondingly flexible, resilient plastic.
  • an inlet valve 14 is integrally formed on the foot side. This is in cooperation with a pot bottom side of the adapter part 5 formed valve seat 15th
  • the adapter part 5 forms pot bottom side, the bellows part 13 facing, a Stützso- disgust 16 in which a foot portion of the bellows 13 is seated.
  • the bellows part 13 is no longer bellows-like or zigzag-shaped in the longitudinal cross-section, but with a solid wall which has a reinforced triangular cross-section in the overlapping area of the support base 16.
  • the bellows part 13 sits on the underside of the bottom 19 of the adapter part 5.
  • the bottom 19 forms a central opening 20 as a feed channel to the inlet valve 14, which opening 20 is retracted relative to the bottom 19 to the interior of the pumping chamber 12 out.
  • the channel runs into two concentric rings 21, 22, of which the outer surface of the ring 21 is designed to sealingly cooperate with a valve lip 23 of the bridge-like inlet valve 14.
  • an outlet valve 24 formed of a soft elastic plastic. This seated in a seat part 25, the cooperating with a counterpart member 26 by clamping an upper collar 27 of the bellows 13 and the pump chamber wall supports.
  • the counterpart part 26 has a subsection 28 projecting into the fold region of the bellows part 13, which is basically formed like a cylinder. In the subsection 28, the support member 25 is guided.
  • the support member 25 forms a channel portion in which the outlet valve 24 is seated.
  • the channel section is connected via radially directed passage openings of the support member 25 and the lower portion 28 with the pumping chamber 12 in connection. Facing away from the pumping chamber 12, the channel section of the seat part 25 merges into an output channel 29.
  • the bridge-like opening 20 in the bottom 19 spanning inlet valve 14 is connected by means extending in the circumferential direction of the inlet valve 14 Halterungsar- men 30 to the bellows 13.
  • connection of the support arms 30 to the inlet valve 14 is preferably provided in the transition of the bridge section in the annular trained and pointing down in the direction of the bottom 19 valve lip 23.
  • valve lip 23 extends with respect to a longitudinal cross-section according to Figure 2 is substantially rectilinear, at least with respect to the circumferential outer wall thereof.
  • the adjoining the valve lip 23 bridge portion of the inlet valve 14 forms a dome portion 31, with a considered in the longitudinal cross-section Radius of curvature a of the outer surface facing the pumping chamber 12, which corresponds approximately to 0.4 times the outer radius b of the valve lip 23.
  • the dome portion 31 protrudes in the direction of the pumping chamber 12 and may, with reference to a longitudinal cross-sectional view in the region of its zenith, have a flattened region 32, which is preferably in a plane parallel to the plane defined by the free lip end of the valve lip 23 in the closed state of the inlet valve 14 Substantially transversely to the longitudinal axis x extending plane extends.
  • the height c of the inlet valve 14 considered by this valve lip plane up to the zenith of the dome section 31 corresponds at least approximately to the radius b, thus forming a substantially semicircular inlet valve 14 with dome section 31 and valve lip 23.
  • the wall thickness d in the region of the dome portion 31 corresponds approximately to twice the wall thickness e of the valve lip 23, in particular in its free end region. Due to the dome-shaped configuration of the inlet valve-side bridge section, advantages may occur in the course of the opening movement of the inlet valve 14 and / or in the course of the closing movement thereof.
  • a dispenser which is characterized in that the inlet valve 14 extends in a longitudinal section of the bellows 13 in a circular section, with an upper dome portion 31 and the lower valve lip 23, wherein the connection to the Support arms 30 at a height center of the intake valve 14 or this offset towards a free edge of the valve lip 23 is formed.
  • a dispenser which is characterized in that the connection in the transition of the upper dome portion 31 in the lower valve lip 23, which is substantially rectilinear, is formed.
  • a dispenser characterized in that the dome portion 31 together with the valve lip 23 forms a substantially semicircle.
  • a dispenser which is characterized in that the wall thickness d of the dome portion 31 is greater than the wall thickness e of the valve lip 23rd

Landscapes

  • Reciprocating Pumps (AREA)
  • Details Of Reciprocating Pumps (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)

Abstract

The invention relates to a dispenser (1) for discharging liquid to pasty masses (4), comprising a pump head (2) and a pump chamber (12), which is formed in the pump head and has a pump chamber wall and an inlet valve (14) and an outlet valve (24), wherein the pump chamber (12) is formed by a bellows part (13), on which the inlet valve (14) is integrally formed in any case, wherein furthermore the inlet valve (14) is retained by means of retaining arms (30), which extend in the peripheral direction of the inlet valve (14) and are connected to the pump chamber wall and to the inlet valve (14), and the inlet valve (14) forms a peripherally extending valve lip (23), which freely protrudes in cross-section. In order to further improve a dispenser of the type in question, in particular with regard to the function of the inlet valve, the inlet valve (14) according to the invention extends in the shape of a circle segment in a longitudinal cross-section of the bellows part (13), having an upper dome segment (31) and the lower valve lip (23), wherein the connection to the retaining arms (30) is formed at a height center of the inlet valve (14) or at an offset therefrom toward a free edge of the valve lip (23).

Description

Spender zur Ausgabe flüssiger bis pastöser Massen  Dispenser for dispensing liquid to pasty masses
Die Erfindung betrifft einen Spender zur Ausgabe flüssiger bis pastöser Massen, mit einem Pumpenkopf und einer darin ausgebildeten, eine Pumpkammerwandung aufweisenden Pumpkammer, die ein Ein- und ein Auslassventil aufweist, wobei die Pumpkammer durch ein Balgteil gebildet ist, an das jedenfalls das Einlassventil einstückig angeformt ist, wobei weiter das Einlassventil mittels sich in Umfangsrichtung des Einlassventils erstreckender Halterungsarme, die an der Pumpkammerwandung und an dem Einlassventil angebunden sind, gehaltert ist und das Einlassventil eine im Querschnitt freikragende, umlaufende Ventillippe ausbildet. The invention relates to a dispenser for dispensing liquid to pasty masses, comprising a pump head and a pump chamber having a pumping chamber having a inlet and an outlet valve, wherein the pumping chamber is formed by a bellows, to which in any case the inlet valve integrally formed further, the intake valve is supported by support arms extending in the circumferential direction of the intake valve, which are connected to the pumping chamber wall and to the intake valve, and the intake valve forms a circumferential, free-cutting circumferential valve lip.
Spender der in Rede stehenden Art sind bekannt. Beispielsweise wird auf die EP 1 871 539 Bl verwiesen. Die als Balgteil ausgebildete Pumpkammer weist eine flexible Pumpkammerwandung auf. Diese besteht insbesondere aus einem Weichkunststoffmaterial, weiter insbesondere aus einem elastisch rückstellfähigen Kunststoffmaterial. Einstückig und ggf. materialeinheitlich hiermit ist das Einlassventil ausgebildet. Im Hinblick auf den bekannten Stand der Technik wird eine technische Problematik der Erfindung darin gesehen, einen Spender der in Rede stehenden Art insbesondere hinsichtlich der Funktion des Einlassventils weiter zu verbessern. Donors of the type in question are known. For example, reference is made to EP 1 871 539 B1. The pump chamber designed as a bellows part has a flexible pumping chamber wall. This consists in particular of a soft plastic material, further in particular of an elastically resilient plastic material. Integral and possibly the same material hereby the inlet valve is formed. In view of the known prior art, a technical problem of the invention is seen in a donor of the type in question, in particular with regard to the function of the intake valve to further improve.
Eine mögliche Lösung der Aufgabe ist nach einem ersten Erfindungsgedanken bei einem Spender gegeben, bei welchem darauf abgestellt ist, das das Einlassventil in einem (mittigen) Längsquerschnitt des Balgteiles kreisabschnittförmig verläuft, mit einem oberen Abschnitt und der unteren Ventillippe, wobei die Anbindung an die Halterungsarme in einer Höhenmitte des Einlas sventils oder dieser gegenüber versetzt hin zu einem freien Rand der Ventillippe ausgebildet ist. Der Längsschnitt erstreckt sich mittig des Balgteils, eine Längsachse desselben aufnehmend, wobei die Längsachse in diesem Längsschnitt sich als Linie darstellt. A possible solution of the problem is given according to a first inventive concept in a dispenser, which is geared to the inlet valve in a (central) longitudinal cross-section of the bellows part circular section, with an upper portion and the lower valve lip, wherein the connection to the support arms at a height center of the inlet sventils or offset from this towards a free edge of the valve lip is formed. The longitudinal section extends in the middle of the bellows part, receiving a longitudinal axis of the same, wherein the longitudinal axis in this longitudinal section is a line.
Der Kuppelabschnitt erstreckt sich insbesondere in der Einlassventil-Schließstellung im Längsquerschnitt konvexartig in Richtung auf das Balginnere bzw. in Richtung auf das Pumpkammerinnere weisend. Dies führt in vorteilhafter Weise insbesondere bei einer Spenderbetätigung über den Druck der Masse in der Pumpkammer zu einer günstigen Belastung des Einlas sventils in Richtung auf den Dichtsitz. Der Druck kann durch die kuppelartige Ausgestaltung des Einlas sventiles gleichmäßig über den Umfang auf die untere Ventillippe einwirken. Die Ventilverschlussstellung kann hierdurch in vorteilhafter Weise unterstützt werden. The dome section extends in particular in the inlet valve closed position in the longitudinal cross-section convex in the direction of the bellows interior or in the direction of the pump chamber interior facing. This leads advantageously in a donor operation in particular via the pressure of the mass in the pumping chamber to a favorable load of the intake valve in the direction of the sealing seat. The pressure can act through the dome-like configuration of the inlet sventiles evenly over the circumference of the lower valve lip. The valve closure position can thereby be supported in an advantageous manner.
Auch kann das Öffnungsverhalten des Einlassventiles, insbesondere dessen Also, the opening behavior of the intake valve, in particular its
Schwenkverhalten aus der Ventilverschlussposition in die Ventiloffenstellung durch die kuppelartige Ausgestaltung in vorteilhafter Weise unterstützt werden. Pivoting behavior from the valve closure position in the valve open position be supported by the dome-like configuration in an advantageous manner.
Die Anbindung der Halterungsarme kann in einer Höhenmitte des Einlassventils ausgebildet sein, wobei die Höhenmitte sich bevorzugt auf die gesamte in Erstre- ckungsrichtung der Längsachse der Pumpkammer betrachtete Erstreckungslänge des Einlassventils, ausgehend von der Ventillippe bis zum Kuppelzenit, bezieht. Auch kann diese Anbindung versetzt zur Höhenmitte in Richtung auf den freien Rand der Ventillippe ausgebildet sein, entsprechend mit einem zur Ventillippe geringeren Abstand als zum Kuppelzenit (mit Bezug auf die Erstreckungslänge in Richtung der Längsachse). The connection of the support arms may be formed in a center of the inlet valve, wherein the center of the height preferably refers to the entire extension length of the inlet valve, starting from the valve lip to the coupling center, as viewed in the direction of extension of the longitudinal axis of the pumping chamber. Also, this connection can be offset from the center of the height formed in the direction of the free edge of the valve lip, corresponding to a smaller distance to the valve lip than the Kuppelzenit (with respect to the extension length in the direction of the longitudinal axis).
Zudem kann die Anbindung auch in dem Übergang des oberen Kuppelabschnittes in die untere Ventillippe ausgebildet sein. Die kuppelartige Ausgestaltung des Einlassventiles erstreckt sich in diesem Fall bevorzugt allein oberhalb des Anbindungsberei- ches für die Halterungsarme. Die Ventillippe kann im Übrigen mit Bezug auf den Längsquerschnitt im Wesentlichen geradlinig verlaufen, nimmt entsprechend den kreisabschnittförmigen Verlauf des Kuppelabschnittes ggf. nicht auf. Der Kuppelabschnitt kann im Längsquerschnitt zusammen mit der Ventillippe im Wesentlichen einen Halbkreis bilden. Die Ventillippe kann hierbei mit Bezug auf einen Längsquerschnitt im Wesentlichen tangential übergehen in den Kreisabschnittverlauf des Kuppelabschnittes. Die Höhe des Einlassventiles in Längserstreckung der Pumpkammer (mit Bezug auf eine Einlassventil- Verschlussstellung) zwischen einer durch das freie Ende der unteren Ventillippe aufgespannten Ebene und einer parallel hierzu verlaufenden, den Zenit des Kuppelabschnittes tangierenden Ebene, kann etwa dem halben Durchmesser des Einlas s ventils im Bereich der Ventillippe entsprechen, alternativ dem 0,3- bis 0,7-Fachen des Durchmessers. In addition, the connection can also be formed in the transition of the upper dome section in the lower valve lip. The dome-like configuration of the inlet valve in this case preferably extends alone above the connection region for the support arms. Incidentally, the valve lip may be substantially rectilinear with respect to the longitudinal cross-section, and may not increase in accordance with the circular segment-shaped course of the dome section. The dome portion may form a semicircle in the longitudinal cross-section together with the valve lip substantially. The valve lip can in this case with respect to a longitudinal cross-section substantially tangentially transition into the circular segment course of the dome portion. The height of the inlet valve in the longitudinal extent of the pumping chamber (with respect to an inlet valve closure position) between a plane defined by the free end of the lower valve lip and a plane extending parallel thereto, the zenith of the dome section tangent plane can about half the diameter of the inlet s valve in the area of the valve lip, alternatively 0.3 to 0.7 times the diameter.
Der sich im Längs-Querschnitt ggf. abbildende Halbkreis kann bzgl. der Kontur geradlinige Abschnitte aufweisen, so bspw. im Zenitbereich des Kuppelabschnittes; darüber hinaus, wie bevorzugt, im Bereich der Ventillippe. The semicircle which may be imaged in the longitudinal cross-section may have rectilinear sections with respect to the contour, for example in the zenith region of the dome section; moreover, as preferred, in the area of the valve lip.
Die Wandungs stärke des Kuppelabschnittes kann größer sein als die Wandungsstärke der Ventillippe. So ist eine Wandungsstärke des Kuppelabschnittes bevorzugt vorgesehen, die dem 1,2- bis 3-Fachen, weiter bevorzugt etwa dem 1,5 bis 2-Fachen der Wandungs stärke im Bereich der Ventillippe entspricht. The Wandungs strength of the dome section may be greater than the wall thickness of the valve lip. Thus, a wall thickness of the dome portion is preferably provided, which corresponds to 1.2 to 3 times, more preferably about 1.5 to 2 times the wall thickness in the region of the valve lip.
Die Wandungsstärke im Bereich des Kuppelabschnittes ist bevorzugt über den gesamten Erstreckungsbereich zumindest annähernd gleich bleibend gewählt. The wall thickness in the region of the dome section is preferably chosen to be at least approximately constant over the entire extension region.
Die vor- und nachstehend angegebenen Bereiche bzw. Wertebereiche oder Mehr- fachbereiche schließen hinsichtlich der Offenbarung auch sämtliche Zwischenwerte ein, insbesondere von 1/10-Schritten der jeweiligen Dimension, ggf. also auch di- mensionslos. Beispielsweise beinhaltet die Angabe 0,3 bis 0,7-fach auch die Offenbarung von 0,4 bis 0,7-fach, 0,3 bis 0,6-fach, 0,4 bis 0,6-fach, etc., die Offenbarung von 1,2 bis 3-fach auch die Offenbarung von 1,3 bis 3-fach, 1,2 bis 2,9-fach, 1,3 bis 2,9-fach, etc. Diese Offenbarung kann einerseits zur Eingrenzung einer genannten Bereichs- grenze von unten und/ oder oben, alternativ oder ergänzend aber zur Offenbarung eines oder mehrerer singulärer Werte aus einem jeweilig angegebenen Bereich dienen. With regard to the disclosure, the ranges or value ranges or multiple ranges given above and below also include all intermediate values, in particular of 1/10 increments of the respective dimension, if necessary also di- mensionslos. For example, the specification of 0.3 to 0.7 times also includes the disclosure of 0.4 to 0.7 times, 0.3 to 0.6 times, 0.4 to 0.6 times, etc. the disclosure of 1.2 to 3 times also the disclosure of 1.3 to 3-fold, 1.2 to 2.9-fold, 1.3 to 2.9-fold, etc. This disclosure can on the one hand to the limitation serve a specified range limit from below and / or above, alternatively or additionally but for the disclosure of one or more singular values from a respective specified range.
Nachstehend ist die Erfindung anhand der beigefügten Zeichnung, welche lediglich ein Ausführungsbeispiel darstellt, näher erläutert. Es zeigt: The invention is explained in more detail below with reference to the attached drawing, which represents only one exemplary embodiment. It shows:
Figur 1 einen Spender der in Rede stehenden Art in einer Längsschnittdarstellung; Figur 2 den heraus vergrößerten Bereich II in Figur 1; Figure 1 shows a dispenser of the type in question in a longitudinal sectional view; FIG. 2 shows the enlarged area II in FIG. 1;
Figur 3 ein Balgteil in geschnittener, perspektivischer Darstellung. Figure 3 shows a Belgteil in cut, perspective view.
Dargestellt und beschrieben ist zunächst mit Bezug zu Figur 1 ein Spender 1, im We- sentlichen bestehend aus einem Pumpenkopf 2 und einem Vorratsbehältnis 3. With reference to FIG. 1, a dispenser 1, essentially consisting of a pump head 2 and a storage container 3, is shown and described.
Der Pumpenkopf 2 ist ausgebildet zur Ausgabe einer flüssigen bis pastösen Masse 4, welche in dem Behältnis 3 bevorratet ist. Der Pumpenkopf 2 kann modulartig ausgebildet sein und von oben in das Vorratsbehältnis 3 eingesetzt werden. The pump head 2 is designed to dispense a liquid to pasty mass 4, which is stored in the container 3. The pump head 2 may be formed in a modular manner and inserted from above into the storage container 3.
Die Verbindung zwischen dem Vorratsbehältnis 3 und dem Pumpenkopf 2 ist mittels eines Adapterteils 5 erreicht. Das Adapterteil 5 ist im Wesentlichen topf artig gebildet mit einer nach oben zur Aufnahme des Pumpenkopfes 2 weisenden Topföffnung. The connection between the storage container 3 and the pump head 2 is achieved by means of an adapter part 5. The adapter part 5 is essentially cup-shaped with a pointing upwards for receiving the pump head 2 pot opening.
Die Topfaußenwandung des Adapterteils 5 ist mit umlaufenden, bevorzugt ringarti- gen Vor- bzw. Rücksprüngen versehen, zur Klemmhalterung des Vorratsbehältnisses 3, sowie weiter bevorzugt zur Klemmhalterung einer den Pumpenkopf 2 in der Nichtgebrauchs Stellung überfangenden Kappe 6. Das Adapterteil 5 stützt sich bevorzugt über eine wandungsaußenseitig der umlaufenden Topfwandung angeformte Ringschulter 7 auf der umlaufenden Öffnungsrandkante des Vorratsbehältnisses 3 ab. The pot outer wall of the adapter part 5 is provided with encircling, preferably ring-like protrusions or recesses, for clamping support of the storage container 3, and more preferably for clamping support of a pump head 2 in the non-use position catching cap 6. The adapter part 5 is preferably based on a wall shoulder 7 formed on the outside of the circumferential pot wall on the peripheral opening edge of the storage container 3.
Das Adapterteil 5 formt weiter ein Teleskopaußenteil 8 aus zur linear verlagerbaren Aufnahme des entsprechend ein Teleskopinnenteil 9 ausformenden Pumpenkopfes 2. The adapter part 5 further forms a telescope outer part 8 for the linearly displaceable receiving of the correspondingly a telescopic inner part 9 ausformenden pump head. 2
Der Pumpenkopf 2 ist mit einer bevorzugt konzentrisch zu einer Längsmittelachse x des Spenders 1 umlaufenden Teleskopinnenwandung 10 versehen. Diese ist in dem Adapterteil 5 wandungsinnenseitig der, die Teleskopaußenwandung 11 ausformenden Topfwandung geführt. The pump head 2 is provided with a preferably concentric with a longitudinal center axis x of the dispenser 1 rotating telescopic inner wall 10. This is in the adapter part 5 inside the wall, the telescopic outer wall 11 out forming pot wall out.
Es ist eine teleskopartige Linearverlagerung des Pumpenkopfes 2 relativ zu dem Adapterteil 5 ermöglicht, dies über einen maximalen Verlagerungsweg, der etwa einem Drittel bis der Hälfte der in Längsachserstreckung betrachteten Topfhöhe des Adapterteiles 5 entspricht. It is a telescopic linear displacement of the pump head 2 relative to the adapter part 5 allows this over a maximum displacement path, which corresponds to about one third to half of the considered in longitudinal axis pot height of the adapter part 5.
Der Pumpenkopf 2 weist eine Pumpkammer 12 auf, die aus einem flexiblen Balgteil 13 besteht. The pump head 2 has a pumping chamber 12 which consists of a flexible bellows part 13.
Das Balgteil 13 ist in einem mittigen Längs-Querschnitt gemäß der Darstellung in Figur 1, wobei in der Schnittebene sich die Längsachse x als Linie darstellt, Zickzack- förmig verlaufend ausgebildet. In einem quer hierzu betrachteten Horizontalabschnitt ergibt sich eine kreisringförmige Ausgestaltung des Balgteiles 13. The bellows part 13 is in a central longitudinal cross-section as shown in FIG. 1, the longitudinal axis x being in the sectional plane as a line, zigzagging formed running course. In a transverse horizontal section considered this results in an annular configuration of the bellows 13th
Es handelt sich hierbei bevorzugt um ein Kunststoffspritzteil aus einem entspre- chend weichelastischen, rückstellfähigen Kunststoff. This is preferably a plastic injection-molded part made of a correspondingly flexible, resilient plastic.
In dem Balgteil 13 ist fußseitig ein Einlassventil 14 integriert ausgebildet. Dieses steht in Zusammenwirkung mit einem topfbodenseitig des Adapterteiles 5 ausgebildeten Ventilsitz 15. In the bellows part 13, an inlet valve 14 is integrally formed on the foot side. This is in cooperation with a pot bottom side of the adapter part 5 formed valve seat 15th
Pumpenkopf 2 und Adapterteil 5 teleskopieren außerhalb des Balgteils 13 miteinander. Pump head 2 and adapter part 5 telescope outside of the bellows 13 with each other.
Das Adapterteil 5 bildet topfbodenseitig, dem Balgteil 13 zugewandt, einen Stützso- ekel 16 aus, in welchem ein Fußbereich des Balgteils 13 einsitzt. In diesem Bereich ist das Balgteil 13 nicht mehr balgartig bzw. im Längs-Querschnitt zickzackförmig ausgebildet, sondern mit einer Massivwandung, die im Überfangbereich des Stützsockels 16 einen verstärkten dreieckförmigen Querschnitt aufweist. The adapter part 5 forms pot bottom side, the bellows part 13 facing, a Stützso- disgust 16 in which a foot portion of the bellows 13 is seated. In this area, the bellows part 13 is no longer bellows-like or zigzag-shaped in the longitudinal cross-section, but with a solid wall which has a reinforced triangular cross-section in the overlapping area of the support base 16.
Mittels gesonderter, bevorzugt ringförmig umlaufender Stützfüße 17, 18 sitzt das Balgteil 13 unterseitig auf dem Boden 19 des Adapterteiles 5 auf. By means of separate, preferably annular circumferential support legs 17, 18, the bellows part 13 sits on the underside of the bottom 19 of the adapter part 5.
Der Boden 19 bildet eine zentrale Öffnung 20 als Zuführ kanal zum Einlassventil 14, welche Öffnung 20 gegenüber dem Boden 19 zum Inneren der Pumpkammer 12 hin eingezogen ist. The bottom 19 forms a central opening 20 as a feed channel to the inlet valve 14, which opening 20 is retracted relative to the bottom 19 to the interior of the pumping chamber 12 out.
Mündungsseitig läuft der Kanal in zwei konzentrische Ringe 21, 22 aus, von welchen die Außenfläche des Ringes 21 zur dichtenden Zusammenwirkung mit einer Ventillippe 23 des brückenartigen Einlassventils 14 ausgebildet ist. In dem Pumpenkopf 2 befindet sich im Wesentlichen oberhalb der Pumpkammer 12 ein aus einem weichelastischen Kunststoff gebildetes Auslassventil 24. Dieses sitzt in einem Sitzteil 25 ein, das zusammenwirkend mit einem Gegenhalterteil 26 durch Einklemmung einen oberen Kragen 27 des Balgteils 13 bzw. der Pumpkammerwan- dung haltert. At the mouth side, the channel runs into two concentric rings 21, 22, of which the outer surface of the ring 21 is designed to sealingly cooperate with a valve lip 23 of the bridge-like inlet valve 14. In the pump head 2 is located substantially above the pumping chamber 12, an outlet valve 24 formed of a soft elastic plastic. This seated in a seat part 25, the cooperating with a counterpart member 26 by clamping an upper collar 27 of the bellows 13 and the pump chamber wall supports.
Das Gegenhalterteil 26 weist einen in den Faltenbereich des Balgteils 13 hineinragenden Unterabschnitt 28 auf, der grundsätzlich zylinderartig gebildet ist. In dem Unterabschnitt 28 ist das Stützteil 25 geführt. The counterpart part 26 has a subsection 28 projecting into the fold region of the bellows part 13, which is basically formed like a cylinder. In the subsection 28, the support member 25 is guided.
Das Stützteil 25 formt einen Kanalabschnitt aus, in welchem das Auslassventil 24 einsitzt. Der Kanalabschnitt steht über radial gerichtete Durchtrittsöffnungen des Stützteiles 25 und des Unterabschnittes 28 mit der Pumpkammer 12 in Verbindung. Der Pumpkammer 12 abgewandt geht der Kanalabschnitt des Sitzteiles 25 in einen Ausgabekanal 29 über. The support member 25 forms a channel portion in which the outlet valve 24 is seated. The channel section is connected via radially directed passage openings of the support member 25 and the lower portion 28 with the pumping chamber 12 in connection. Facing away from the pumping chamber 12, the channel section of the seat part 25 merges into an output channel 29.
Das brückenartig die Öffnung 20 im Boden 19 überspannende Einlassventil 14 ist mittels sich in Umfangsrichtung des Einlassventils 14 erstreckender Halterungsar- men 30 an dem Balgteil 13 angebunden. The bridge-like opening 20 in the bottom 19 spanning inlet valve 14 is connected by means extending in the circumferential direction of the inlet valve 14 Halterungsar- men 30 to the bellows 13.
Die Anbindung der Halterungsarme 30 an dem Einlassventil 14 ist bevorzugt im Übergang des Brückenabschnitts in die ringförmig ausgebildete und nach unten in Richtung auf den Boden 19 weisende Ventillippe 23 vorgesehen. The connection of the support arms 30 to the inlet valve 14 is preferably provided in the transition of the bridge section in the annular trained and pointing down in the direction of the bottom 19 valve lip 23.
Die Ventillippe 23 verläuft mit Bezug auf einen Längs-Querschnitt gemäß Figur 2 im Wesentlichen geradlinig, zumindest bezüglich der umlaufenden Außenwandung derselben. Der sich an die Ventillippe 23 anschließende Brückenabschnitt des Einlassventils 14 formt einen Kuppelabschnitt 31 aus, mit einem im Längsquerschnitt betrachteten Krümmungsradius a der zur Pumpkammer 12 hin gewandten Außenfläche, der etwa dem 0,4-Fachen des Außenradius b der Ventillippe 23 entspricht. The valve lip 23 extends with respect to a longitudinal cross-section according to Figure 2 is substantially rectilinear, at least with respect to the circumferential outer wall thereof. The adjoining the valve lip 23 bridge portion of the inlet valve 14 forms a dome portion 31, with a considered in the longitudinal cross-section Radius of curvature a of the outer surface facing the pumping chamber 12, which corresponds approximately to 0.4 times the outer radius b of the valve lip 23.
Der Kuppelabschnitt 31 ragt in Richtung auf die Pumpkammer 12 und kann mit Bezug auf eine Längsquerschnittdarstellung im Bereich seines Zenits einen abgeflachten Bereich 32 aufweisen, welcher sich bevorzugt in einer Parallelebene zu der durch das freie Lippenende der Ventillippe 23 aufgespannten, im Verschlusszustand des Einlassventils 14 im Wesentlichen sich quer zur Längsachse x erstreckenden Ebene verläuft. The dome portion 31 protrudes in the direction of the pumping chamber 12 and may, with reference to a longitudinal cross-sectional view in the region of its zenith, have a flattened region 32, which is preferably in a plane parallel to the plane defined by the free lip end of the valve lip 23 in the closed state of the inlet valve 14 Substantially transversely to the longitudinal axis x extending plane extends.
Die von dieser Ventillippenebene bis zum Zenit des Kuppelabschnitts 31 betrachtete Höhe c des Einlassventiles 14 entspricht zumindest annähernd dem Radius b, womit sich insgesamt ein im Wesentlichen halbkreisförmiges Einlassventil 14 mit Kuppelabschnitt 31 und Ventillippe 23 ausformt. The height c of the inlet valve 14 considered by this valve lip plane up to the zenith of the dome section 31 corresponds at least approximately to the radius b, thus forming a substantially semicircular inlet valve 14 with dome section 31 and valve lip 23.
Die Wandungs stärke d im Bereich des Kuppelabschnittes 31 entspricht etwa der 2-fachen Wandungsstärke e der Ventillippe 23, insbesondere in dessen freiem Endbereich. Durch die kuppeiförmige Ausgestaltung des einlassventilseitigen Brückenabschnittes können sich Vorteile im Zuge der Öffnungsbewegung des Einlassventiles 14 und/ oder im Zuge der Schließbewegung desselben einstellen. The wall thickness d in the region of the dome portion 31 corresponds approximately to twice the wall thickness e of the valve lip 23, in particular in its free end region. Due to the dome-shaped configuration of the inlet valve-side bridge section, advantages may occur in the course of the opening movement of the inlet valve 14 and / or in the course of the closing movement thereof.
Die vorstehenden Ausführungen dienen der Erläuterung der von der Anmeldung insgesamt erfassten Erfindungen, die den Stand der Technik zumindest durch die folgenden Merkmalskombinationen jeweils auch eigenständig weiterbilden, nämlich: The above explanations serve to explain the inventions as a whole, which further develop the state of the art independently, at least by the following feature combinations, namely:
Ein Spender, der dadurch gekennzeichnet ist, dass das Einlassventil 14 in einem Längsquerschnitt des Balgteils 13 kreisabschnittförmig verläuft, mit einem oberen Kuppelabschnitt 31 und der unteren Ventillippe 23, wobei die Anbindung an die Halterungsarme 30 in einer Höhenmitte des Einlas sventils 14 oder dieser gegenüber versetzt hin zu einem freien Rand der Ventillippe 23 ausgebildet ist. A dispenser, which is characterized in that the inlet valve 14 extends in a longitudinal section of the bellows 13 in a circular section, with an upper dome portion 31 and the lower valve lip 23, wherein the connection to the Support arms 30 at a height center of the intake valve 14 or this offset towards a free edge of the valve lip 23 is formed.
Ein Spender, der dadurch gekennzeichnet ist, dass die Anbindung in dem Übergang des oberen Kuppelabschnittes 31 in die untere Ventillippe 23, die im Wesentlichen geradlinig verläuft, ausgebildet ist. A dispenser, which is characterized in that the connection in the transition of the upper dome portion 31 in the lower valve lip 23, which is substantially rectilinear, is formed.
Ein Spender, der dadurch gekennzeichnet ist, dass der Kuppelabschnitt 31 zusammen mit der Ventillippe 23 im Wesentlichen einen Halbkreis bildet. A dispenser, characterized in that the dome portion 31 together with the valve lip 23 forms a substantially semicircle.
Ein Spender, der dadurch gekennzeichnet ist, dass die Wandungsstärke d des Kuppelabschnittes 31 größer ist als die Wandungsstärke e der Ventillippe 23. A dispenser, which is characterized in that the wall thickness d of the dome portion 31 is greater than the wall thickness e of the valve lip 23rd
Alle offenbarten Merkmale sind (für sich, aber auch in Kombination untereinander) erfindungswesentlich. In die Offenbarung der Anmeldung wird hiermit auch derAll disclosed features are essential to the invention (individually, but also in combination with one another). In the disclosure of the application is hereby also the
Offenbarungsinhalt der zugehörigen/ beigefügten Prioritätsunterlagen (Abschrift der Voranmeldung) vollinhaltlich mit einbezogen, auch zu dem Zweck, Merkmale dieser Unterlagen in Ansprüche vorliegender Anmeldung mit aufzunehmen. Die Unteransprüche charakterisieren mit ihren Merkmalen eigenständige erfinderische Weiter- bildungen des Standes der Technik, insbesondere um auf Basis dieser Ansprüche Teilanmeldungen vorzunehmen. Content of the associated / attached priority documents (copy of the prior application) fully incorporated, including for the purpose of including features of these documents in claims of the present application. The subclaims characterize with their features independent inventive further developments of the prior art, in particular in order to carry out divisional applications based on these claims.
Bezugszeichenliste: LIST OF REFERENCE NUMBERS
1 Spender 24 Auslassventil1 dispenser 24 outlet valve
2 Pumpenkopf 25 Sitzteil 2 pump head 25 seat part
3 Vorratsbehältnis 26 Gegenhalterteil 3 storage container 26 counterpart part
4 Masse 27 Kragen 4 mass 27 collar
5 Adapterteil 28 Unterabschnitt 5 adapter part 28 subsection
6 Kappe 29 Ausgabekanal6 cap 29 output channel
7 Ringschulter 30 Halterungsarm7 Ring shoulder 30 Bracket arm
8 Teleskopaußenteil 31 Kuppelabschnitt8 Telescope outer part 31 dome section
9 Teleskopinnenteil 32 Bereich 9 telescopic inner part 32 area
10 Teleskopinnenwandung  10 telescopic inner wall
11 Teleskopaußenwandung a Radiusmaß 11 Telescope outer wall a Radius dimension
12 Pumpkammer b Radiusmaß12 pump chamber b radius
13 Balgteil c Höhe 13 bellows part c height
14 Einlassventil d Wandungsstärke 14 inlet valve d wall thickness
15 Ventilsitz e Wandungsstärke15 valve seat e wall thickness
16 Stützsockel x Längsachse16 support base x longitudinal axis
17 Stützfuß 17 support foot
18 Stützfuß  18 support foot
19 Boden  19 floor
20 Öffnung  20 opening
21 Ring  21 ring
22 Ring  22 ring
23 Ventillippe  23 valve lip

Claims

ANSPRÜCHE
1. Spender (1) zur Ausgabe flüssiger bis pastöser Massen (4), mit einem Pumpenkopf (2) und einer darin ausgebildeten, eine Pumpkammerwandung aufweisenden Pumpkammer (12), die ein Ein- (14) und ein Auslassventil (24) aufweist, wobei die Pumpkammer (12) durch ein Balgteil (13) gebildet ist, an das jedenfalls das Einlassventil (14) einstückig angeformt ist, wobei weiter das Einlassventil (14) mittels sich in Umfangsrichtung des Einlassventils (14) erstreckender Halterungsarme (30), die an der Pumpkammerwandung und an dem Einlassventil (14) angebunden sind, gehaltert ist, und das Einlassventil (14) eine im Querschnitt frei kragende, umlaufende Ventillippe (23) ausbildet, dadurch gekennzeichnet, dass das Einlassventil (14) in einem Längsquerschnitt des Balgteils (13) kreisabschnittförmig verläuft, mit einem oberen Kuppelabschnitt (31) und der unteren Ventillippe (23), wobei die Anbindung an die Halterungsarme (30) in einer Höhenmitte des Einlassventils (14) oder dieser gegenüber versetzt hin zu einem freien Rand der Ventillippe (23) ausgebildet ist. A dispenser (1) for dispensing liquid to pasty masses (4), comprising a pump head (2) and a pumping chamber (12) having a pumping chamber wall formed therein and having an inlet (14) and an outlet valve (24). wherein the pumping chamber (12) is formed by a bellows part (13) to which in any case the inlet valve (14) is integrally formed, wherein further the inlet valve (14) by means in the circumferential direction of the inlet valve (14) extending support arms (30) are attached to the pumping chamber wall and to the inlet valve (14), and the inlet valve (14) forms a peripheral, freely cantilevered, circumferential valve lip (23), characterized in that the inlet valve (14) is arranged in a longitudinal cross-section of the bellows component (14). 13) extends in a circular section, with an upper dome portion (31) and the lower valve lip (23), wherein the connection to the support arms (30) in a center of the inlet valve (14) or ver opposite set to a free edge of the valve lip (23) is formed.
2. Spender nach Anspruch 1, dadurch gekennzeichnet, dass die Anbindung in dem Übergang des oberen Kuppelabschnittes (31) in die untere Ventillippe (23), die im Wesentlichen geradlinig verläuft, ausgebildet ist. 2. Dispenser according to claim 1, characterized in that the connection in the transition of the upper dome portion (31) in the lower valve lip (23), which is substantially rectilinear, is formed.
3. Spender nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Kuppelabschnitt (31) zusammen mit der Ventillippe (23) im Wesentlichen einen Halbkreis bildet. 3. Dispenser according to one of the preceding claims, characterized in that the dome portion (31) together with the valve lip (23) substantially forms a semicircle.
4. Spender nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass die Wandungsstärke (d) des Kuppelabschnittes (31) größer ist als die Wandungsstärke (e) der Ventillippe (23). 4. Dispenser according to one of the preceding claims, characterized in that the wall thickness (d) of the dome portion (31) is greater than the wall thickness (e) of the valve lip (23).
EP16712786.9A 2015-03-23 2016-03-21 Dispenser for discharge of liquid to pasty materials Active EP3274100B1 (en)

Applications Claiming Priority (2)

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DE102015104288.6A DE102015104288A1 (en) 2015-03-23 2015-03-23 Dispenser for dispensing liquid to pasty masses
PCT/EP2016/056075 WO2016150889A1 (en) 2015-03-23 2016-03-21 Dispenser for discharging liquid to pasty masses

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EP (1) EP3274100B1 (en)
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Also Published As

Publication number Publication date
CN107428442A (en) 2017-12-01
WO2016150889A1 (en) 2016-09-29
US20180056314A1 (en) 2018-03-01
KR20170135871A (en) 2017-12-08
US10357792B2 (en) 2019-07-23
CN107428442B (en) 2020-01-14
KR102502590B1 (en) 2023-02-21
EP3274100B1 (en) 2018-07-25
DE102015104288A1 (en) 2016-09-29

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