WO1998031457A1 - Shaking apparatus for shaking sample vessels in the form of test tubes or similar items - Google Patents
Shaking apparatus for shaking sample vessels in the form of test tubes or similar items Download PDFInfo
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- WO1998031457A1 WO1998031457A1 PCT/EP1998/000187 EP9800187W WO9831457A1 WO 1998031457 A1 WO1998031457 A1 WO 1998031457A1 EP 9800187 W EP9800187 W EP 9800187W WO 9831457 A1 WO9831457 A1 WO 9831457A1
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- Prior art keywords
- shaker
- sample vessel
- drive
- switch
- sample
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
- B01L99/00—Subject matter not provided for in other groups of this subclass
Definitions
- the invention relates to a shaker for shaking sample vessels in the form of test tube or the like, with an electric shaker drive and a sample vessel holder driven by the shaker drive to carry out vibratory movements, the shaker drive being provided with an on / off switch which is set up as intended of a relevant sample vessel can be switched on to the sample vessel receptacle and can be switched off from the sample vessel receptacle by removing the sample vessel.
- Shakers of the type mentioned above are used, for example, to shake suspensions in test tubes or test tubes in the medical-diagnostic and therapeutic areas and in the chemical-analytical area.
- the invention has the object of providing a usable at any location SchX tel réelle of the generic type provide to its field of application o tern to substantially expanded.
- the shaker is designed as a battery or battery-powered, mobile hand-held device which has a grip section to be gripped by a 3.5 hand of an operator, so that the operator holds the shaker free with this hand - and with the the other hand can handle the relevant sample vessel in order to place the sample vessel on the sample vessel receptacle as intended and to support it on the sample vessel receptacle during shaking operation.
- the compact and easy-to-use shaker according to the invention can also be used in a flexible manner where no laboratory installation and no electrical mains connection are available, so that relevant tests and determinations in the field can be carried out reliably and quickly on site.
- the shaker according to the invention preferably has an essentially rod-shaped housing with a jacket region having the grip section, the sample container receptacle being accessible on an end face of the rod-shaped housing.
- the electric shaker drive is expediently a DC electric motor accommodated in the housing, which rotates the sample container receptacle via a drive shaft running in the longitudinal direction of the housing, the sample container receptacle being arranged eccentrically to the axis of the drive shaft.
- the sample vessel holder is preferably a turntable made of mmi or the like, which is arranged with an eccentric offset relative to the axis of rotation of the drive shaft, so that the unbalance caused during the rotary movement can be used to generate the shaking effect.
- the on / off switch of the shaking drive could be designed to be optically detectable for the presence of a sample vessel on the sample vessel receptacle
- mechanical switch actuation is provided in a preferred embodiment of the invention
- the sample vessel receptacle being a mechanical switching actuation element of the on / off switch is formed, which by placing the relevant sample vessel under pressure on the sample vessel take in an operating position corresponding to the switch-on state of the on / off switch and can be biased in the opposite direction by means of a return spring to an inoperative position corresponding to the switch-off state of the switch.
- the on / off switch therefore acts like a dead man's switch.
- the sample vessel holder and the shaker drive as a coherent assembly between an operating position corresponding to the switched-on state of the on / off switch and a non-operating position corresponding to the switched-off state of the switch are displaceably guided relative to the housing of the shaker and biased towards the non-operating position by means of a return spring, the assembly actuating a closing contact in the operating position, which establishes the electrical connection between the particularly rechargeable battery (accumulator) and the shaker drive fed therefrom.
- the return spring can also serve as a closing contact spring.
- a stand In order to be able to operate the shaker in a stationary manner supported on a solid base in a comfortable manner, a stand is proposed in which the shaker can be used optionally.
- the stand and the shaker have complementary electrical plug connections which come into contact when the shaker is inserted into the stand, the stator-side plug connections being connected to a charger for the battery of the shaker designed as an accumulator. This opens up the possibility that in the housing of the shaker rechargeable battery (or, if applicable, battery set) can be charged without removing it from the housing (mains charging operation).
- the shaker can be connected to the mains via the charger in order to carry out mains operation.
- a shaker 1 according to the invention is shown in longitudinal section.
- the shaker 1 has an essentially rod-shaped, cylindrical housing 3 with an upper housing section 5 of smaller diameter and a lower housing section 7 of larger diameter, the two housing sections 5 and 7 essentially consisting of a one-piece sleeve body 9, for example made of aluminum, which is widened in the lower region , are formed, which is encased in the region of the upper housing section 5 with a plastic material which forms a handle section 11.
- the handle section 11, which may be corrugated on its outer circumference, can be gripped by an operator in order to keep the shaker 1 free for carrying out the shaking operation.
- the sleeve body 9 is provided with a cover cap 15 which has a central opening 17 for the sample container receptacle 19.
- the sample vessel receptacle 19 is a rubber plate with a concave recess 21, the shape of which is adapted to the convex underside of a sample tube, indicated partially at 23, so that a sample tube 23 placed on the sample vessel receptacle 19 has a lateral hold in the convex recess 21 experiences.
- the rubber plate 19 serving as a sample vessel receptacle extends axially through the opening 17 of the lid cap 15 and is via a coupling element 25 rotatably connected to the shaft 27 of a DC electric motor 29, which is housed in the upper housing section 5.
- the motor 29 has a cylindrical housing 31, the longitudinal axis of which coincides with the axis of the motor shaft 27 and the longitudinal axis 33 of the shaker housing 3.
- the axis of the turntable 19 extends parallel to the axis of the motor shaft 27, but with an eccentric offset e, so that when the motor shaft 27 rotates, an unbalance is caused in relation to the sample vessel receiving plate 19, which is intended to generate a shaking force the sample vessel receptacle 19 serves as a sample vessel 23.
- the electric motor 29 is centered in the shaker housing 3 by sliding guide elements 35, 37, the electric motor 29 being fastened to the sliding guide elements 35, 37 - and, together with the sliding guide elements 35, 37, being displaceable by a small distance x along the housing axis 33.
- the lower sliding guide element 37 lies with its underside on a helical spring 39 which, on the other hand, is supported on a carrier plate 41 at the upper end of the lower housing section 7.
- the spring 39 surrounds an on / off switch 43 which is designed as a closer and has a switch actuating pin 45 which is resiliently biased towards the underside of the electric motor 29.
- the on / off switch 43 connects the (not shown) electrical supply lines of the electric motor 29 to the output connections of an accumulator 47, which is housed in the lower housing section 7 after the closure cover 48 has been removed.
- the shaker 1 is shown in the switched-off state. It is automatically switched on in that the sample vessel 23 is placed on the sample vessel receiving plate 19 in the direction of the arrow Y as intended - and thereby one of the sample vessel receiving plates 19 together with the Coupling element 25, the sliding guide elements 35, 37 and the electric motor 29 against the force of the spring 39 displacing force is applied.
- the switching actuating pin 45 of the on / off switch 43 is acted upon by the 5 underside of the electric motor 29 and pressed into the switched-on state, so that the electrical connection between the electric motor 29 and the accumulator is established - and thus the electric motor 29 is put into operation is to rotate the sample vessel receiving plate 19 so that a suspension present in the o sample vessel 23 is shaken.
- the operator holds the shaker with one hand on the grip section 11, while with the other hand presses the sample vessel 23 onto the sample vessel receiving plate 19. 5
- the return spring 39 moves the assembly comprising the electric motor, sliding guide elements 35, 37, coupling element 25 and 0 sample vessel receiving plate 19 back into the inoperative position shown in FIG. 1, the switching actuating pin 45 follows under its bias and the on / off switch 43 changes to the off state.
- the prestressing of the return spring 39 likewise ensures that, in the inoperative position, an annular shoulder 46 on the sample vessel receiving plate 19 is pressed against the inside of the lid cap 15 in order to achieve a sealing effect.
- a securing ring 49 is provided which has a through opening for the shaft 27 and which, in the inoperative position according to FIG. 1, rests on the top of the sliding guide element 35 .
- Another stop 51 is provided on the on / off switch 35 43, the stop 51 being acted upon from the underside of the electric motor 29 when the shaker 1 is in operation.
- the shaker 1 has an axial length of approximately 170 mm, the outer diameter of the upper housing section 5 being approximately 40 mm and the outer diameter of the lower housing section 7 being approximately 50 mm.
- the axial length of the upper housing section 5 is approximately 105 mm.
- the eccentric offset e of the sample vessel receiving plate 19 relative to the axis 33 of the shaker housing 3 is of the order of 1 mm. However, it should be emphasized that these dimensions are given as examples of a preferred embodiment and should in no way be interpreted as limitations.
- a stand for the shaker 1 is indicated with dashed lines.
- the stand has a recess 55 in which the shaker 1 with the lower housing section 7 can be inserted in a suitable manner.
- the stand 53 is sufficiently stable to hold the shaker 1 securely in the shaking mode.
- a charger for the accumulator 47 can be integrated in the stand 53, complementary electrical plug connections of the accumulator 47 and the charger coming into engagement when the shaker 1 is inserted into the recess 55 of the stand 53, so that mains charging operation can take place .
- the shaker 1 is operated via the charger from the electrical network.
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- Health & Medical Sciences (AREA)
- Clinical Laboratory Science (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Devices For Use In Laboratory Experiments (AREA)
- Sampling And Sample Adjustment (AREA)
- Mixers With Rotating Receptacles And Mixers With Vibration Mechanisms (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Mixers Of The Rotary Stirring Type (AREA)
Abstract
Description
Schüttelgerät zum Schütteln von Probengefäßen in Form von Rea- genzglasröhrchen oder dergleichen Shaker for shaking sample vessels in the form of test tube or the like
5 Beschreibung5 Description
Die Erfindung betrifft ein Schüttelgerät zum Schütteln von Probengefäßen in Form von Reagenzglasröhrchen oder dergleichen, mit einem elektrischen Schüttelantrieb und einer von dem 0 Schüttelantrieb zur Ausführung von Schwingungsbewegungen angetriebenen Probengefaßaufnahme, wobei der Schüttelantrieb mit einem Ein/Aus-Schalter versehen ist, der durch bestimmungsgemäßes Aufsetzen eines betreffenden Probengefäßes auf die Probengefaßaufnahme einschaltbar und durch Wegnahme des Pro- 5 bengefäßes von der Probengefaßaufnahme ausschaltbar ist.The invention relates to a shaker for shaking sample vessels in the form of test tube or the like, with an electric shaker drive and a sample vessel holder driven by the shaker drive to carry out vibratory movements, the shaker drive being provided with an on / off switch which is set up as intended of a relevant sample vessel can be switched on to the sample vessel receptacle and can be switched off from the sample vessel receptacle by removing the sample vessel.
Schüttelgeräte der vorstehend genannten Art werden beispielsweise zum Aufschütteln von in Reagenzgläsern bzw. Teströhr- chen befindlichen Suspensionen im medizinisch-diagnostischen 0 und therapeutischen Bereich sowie im chemisch-analytischen Bereich herangezogen.Shakers of the type mentioned above are used, for example, to shake suspensions in test tubes or test tubes in the medical-diagnostic and therapeutic areas and in the chemical-analytical area.
Bekannte Schüttelgeräte der eingangs genannten Art eignen sich aufgrund ihrer Größe, ihres Gewichtes, ihres Aufbaus und ihrer 5 elektrischen Versorgung nur für den stationären Laborbetrieb.Known shakers of the type mentioned are only suitable for stationary laboratory operation due to their size, weight, structure and 5 electrical supply.
Der Erfindung liegt die Aufgabe zugrunde, ein an beliebigen Orten einsetzbares SchX telgerät der gattungsgemäßen Art bereitzustellen, um dessen Einsatzbereich wesentlich zu erwei- 3o tern.The invention has the object of providing a usable at any location SchX telgerät of the generic type provide to its field of application o tern to substantially expanded. 3
Zur Lösung dieser Aufgabe wird erfindungsgemäß vorgeschlagen, daß das Schüttelgerät als batterie- oder akkubetriebenes, mobiles Handgerät ausgebildet ist, welches einen von einer 3.5 Hand einer Bedienungsperson zu umgreifenden Griffabschnitt aufweist, so daß die Bedienungsperson mit dieser Hand das Schüttelgerät frei halten - und mit der anderen Hand das be- treffende Probengefäß handhaben kann, um das Probengefäß auf die Probengefaßaufnahme bestimmungsgemäß aufzusetzen und während des Schuttelbetriebs an der Probengefaßauf ahme abzustützen.To solve this problem it is proposed according to the invention that the shaker is designed as a battery or battery-powered, mobile hand-held device which has a grip section to be gripped by a 3.5 hand of an operator, so that the operator holds the shaker free with this hand - and with the the other hand can handle the relevant sample vessel in order to place the sample vessel on the sample vessel receptacle as intended and to support it on the sample vessel receptacle during shaking operation.
Das kompakte und einfach handhabbare Schüttelgerät nach der Erfindung kann in flexibler Weise auch dort eingesetzt werden, wo keine Laborinstallation und kein elektrischer Netzanschluß zur Verfügung stehen, so daß betreffende Tests und Bestimmun- gen im Feld gleich vor Ort zuverlässig und schnell durchgeführt werden können.The compact and easy-to-use shaker according to the invention can also be used in a flexible manner where no laboratory installation and no electrical mains connection are available, so that relevant tests and determinations in the field can be carried out reliably and quickly on site.
Vorzugsweise hat das Schüttelgerät nach der Erfindung ein im wesentlichen stabförmiges Gehäuse mit einem den Griffabschnitt aufweisenden Mantelbereich, wobei die Probengefaßaufnahme an einer Stirnseite des stabförmigen Gehäuses zugänglich ist.The shaker according to the invention preferably has an essentially rod-shaped housing with a jacket region having the grip section, the sample container receptacle being accessible on an end face of the rod-shaped housing.
Bei dem elektrischen Schüttelantrieb handelt es sich zweckmäßigerweise um einen in dem Gehäuse aufgenommenen Gleichstrom- Elektromotor, der über eine in Längsrichtung des Gehäuses verlaufende Antriebswelle die Probengefaßaufnahme in Drehbewegung versetzt, wobei die Probengefaßaufnahme exzentrisch zur Achse der Antriebswelle angeordnet ist. Bei der Probengefaßaufnahme handelt es sich vorzugsweise um einen Drehteller aus mmi oder dergleichen, der mit einem exzentrischen Versatz relativ zur Drehachse der Antriebswelle angeordnet ist, so daß die bei der Drehbewegung hervorgerufene Unwucht zur Erzeugung des Schütteleffektes ausgenutzt werden kann.The electric shaker drive is expediently a DC electric motor accommodated in the housing, which rotates the sample container receptacle via a drive shaft running in the longitudinal direction of the housing, the sample container receptacle being arranged eccentrically to the axis of the drive shaft. The sample vessel holder is preferably a turntable made of mmi or the like, which is arranged with an eccentric offset relative to the axis of rotation of the drive shaft, so that the unbalance caused during the rotary movement can be used to generate the shaking effect.
Wenngleich der Ein/Aus-Schalter des Schüttelantriebs auf optische Erfassung des Vorhandenseins eines Probengefäßes auf der Probengefaßaufnahme ansprechend ausgebildet sein könnte, so ist bei einer bevorzugten Ausführungsform der Erfindung mechanische Schalterbetätigung vorgesehen, wobei die Probenge- fäßaufnahme als mechanisches Schaltbetätigungselement des Ein/Aus-Schalters ausgebildet ist, das durch Aufsetzen des betreffenden Probengefäßes unter Druck auf die Probengefäßauf- nähme in eine mit dem Einschaltzustand des Ein/Aus-Schalters korrespondierende Betriebsstellung verschiebbar ist und mittels einer Rückstellfeder in entgegengesetzter Richtung zu einer mit dem Ausschaltzustand des Schalters korrespondieren- den Außerbetriebsstellung hin vorgespannt ist. Der Ein/Aus- Schalter wirkt daher nach Art eines Totmann-Schalters.Although the on / off switch of the shaking drive could be designed to be optically detectable for the presence of a sample vessel on the sample vessel receptacle, mechanical switch actuation is provided in a preferred embodiment of the invention, the sample vessel receptacle being a mechanical switching actuation element of the on / off switch is formed, which by placing the relevant sample vessel under pressure on the sample vessel take in an operating position corresponding to the switch-on state of the on / off switch and can be biased in the opposite direction by means of a return spring to an inoperative position corresponding to the switch-off state of the switch. The on / off switch therefore acts like a dead man's switch.
Mit dem Ergebnis, ein möglichst kompaktes Schüttelgerät zu erhalten, das mit möglichst wenig Platz in Anspruch nehmenden Elementen für die Realisierung der automatischen Ein/Aus - Schaltung auskommt, ist gemäß einer Weiterbildung der Erfindung vorgesehen, daß die Probengefaßaufnahme und der Schüttelantrieb als zusammenhängende Baugruppe zwischen einer mit dem Einschaltzustand des Ein/Aus-Schalters korrespondierenden Betriebsstellung und einer mit dem Ausschaltzustand des Schalters korrespondierenden Außerbetriebsstellung relativ zu dem Gehäuse des Schüttelgerätes verschiebbar geführt und zur Außerbetriebsstellung hin mittels einer Rückstellfeder vorgespannt ist, wobei die Baugruppe in der Betriebsstellung einen Schließkontakt betätigt, der die elektrische Verbindung zwischen der insbesondere wiederaufladbaren Batterie (Akkumulator) und dem daraus gespeisten Schüttelantrieb herstellt. Gegebenenfalls kann die Rückstellfeder auch als Schließkontaktfeder dienen.With the result of obtaining the most compact possible shaker which requires as little space as possible for the implementation of the automatic on / off switching, according to a further development of the invention it is provided that the sample vessel holder and the shaker drive as a coherent assembly between an operating position corresponding to the switched-on state of the on / off switch and a non-operating position corresponding to the switched-off state of the switch are displaceably guided relative to the housing of the shaker and biased towards the non-operating position by means of a return spring, the assembly actuating a closing contact in the operating position, which establishes the electrical connection between the particularly rechargeable battery (accumulator) and the shaker drive fed therefrom. If necessary, the return spring can also serve as a closing contact spring.
Um das Schüttelgerät bei Gelegenheit auch auf einer festen Unterlage abgestützt in komfortabler Weise stationär betreiben zu können, wird ein Ständer vorgeschlagen, in den das Schüttelgerät wahlweise einsetzbar ist.In order to be able to operate the shaker in a stationary manner supported on a solid base in a comfortable manner, a stand is proposed in which the shaker can be used optionally.
Dabei kann vorgesehen sein, daß der Ständer und das Schüttelgerät komplementäre elektrische Steckeranschlüsse aufweisen, die beim Einsetzen des Schüttelgerätes in den Ständer in Kontakt kommen, wobei die ständerseitigen Steckeranschlüsse mit einem Ladegerät für die als Akkumulator ausgebildete Batterie des Schüttelgerätes verbunden sind. Hierdurch wird die Möglichkeit eröffnet, den in dem Gehäuse des Schüttelgerätes untergebrachten Akkumulator (oder ggf. Akkumulatorsatz) ohne Herausnahme aus dem Gehäuse bei Bedarf aufzuladen (Netzladebetrieb) .It can be provided that the stand and the shaker have complementary electrical plug connections which come into contact when the shaker is inserted into the stand, the stator-side plug connections being connected to a charger for the battery of the shaker designed as an accumulator. This opens up the possibility that in the housing of the shaker rechargeable battery (or, if applicable, battery set) can be charged without removing it from the housing (mains charging operation).
Ferner kann vorgesehen sein, daß das Schüttelgerät über das Ladegerät ans Netz anschließbar ist, um Netzbetrieb vorzunehmen.Furthermore, it can be provided that the shaker can be connected to the mains via the charger in order to carry out mains operation.
Ein Ausführungsbeispiel der Erfindung wird nachstehend unter Bezugnahme auf die Fig. 1 näher erläutert.An embodiment of the invention is explained in more detail below with reference to FIG. 1.
In Fig. 1 ist ein Schüttelgerät 1 nach der Erfindung im Längsschnitt dargestellt. Das Schüttelgerät 1 hat ein im wesentlichen stabförmgies, zylindrisches Gehäuse 3 mit einem oberen Gehäuseabschnitt 5 kleineren Durchmessers und einem unteren Gehäuseabschnitt 7 größeren Durchmessers, wobei die beiden Gehäuseabschnitte 5 und 7 im wesentlichen von einem einteiligen, im unteren Bereich erweiterten Hülsenkörper 9, beispielsweise aus Aluminium, gebildet sind, der im Bereich des oberen Gehäuseabschnittes 5 mit einem Kunststoffmaterial ummantelt ist, welches einen Griffabschnitt 11 bildet. Der gegebenenfalls an seinem Außenumfang geriffelte Griffabschnitt 11 kann von einer Bedienungsperson umgriffen werden, um das Schüttel- gerät 1 zur Durchführung des Schüttelbetriebs frei zu halten. Im Bereich der oberen Stirnseite 13 des Gehäuses 3 ist der Hülsenkörper 9 mit einer Deckelkappe 15 versehen, die eine zentrale Öffnung 17 für die Probengefaßaufnahme 19 aufweist.In Fig. 1, a shaker 1 according to the invention is shown in longitudinal section. The shaker 1 has an essentially rod-shaped, cylindrical housing 3 with an upper housing section 5 of smaller diameter and a lower housing section 7 of larger diameter, the two housing sections 5 and 7 essentially consisting of a one-piece sleeve body 9, for example made of aluminum, which is widened in the lower region , are formed, which is encased in the region of the upper housing section 5 with a plastic material which forms a handle section 11. The handle section 11, which may be corrugated on its outer circumference, can be gripped by an operator in order to keep the shaker 1 free for carrying out the shaking operation. In the area of the upper end face 13 of the housing 3, the sleeve body 9 is provided with a cover cap 15 which has a central opening 17 for the sample container receptacle 19.
Bei der Probengefaßaufnahme 19 handelt es sich um einen Gummi- teller mit einer konkaven Ausnehmung 21, deren Form der konvexen Unterseite eines bei 23 teilweise angedeuteten Proben- röhrchens angepaßt ist, so daß ein auf die Probengefaßaufnahme 19 aufgesetztes Probenröhrchen 23 seitlichen Halt in der konvexen Ausnehmung 21 erfährt.The sample vessel receptacle 19 is a rubber plate with a concave recess 21, the shape of which is adapted to the convex underside of a sample tube, indicated partially at 23, so that a sample tube 23 placed on the sample vessel receptacle 19 has a lateral hold in the convex recess 21 experiences.
Der als Probengefaßaufnahme dienende Gummiteller 19 erstreckt sich axial durch die Öffnung 17 der Deckelkappe 15 und ist über ein Kupplungselement 25 drehfest mit der Welle 27 eines Gleichstromelektromotors 29 verbunden, der in dem oberen Gehäuseabschnitt 5 untergebracht ist. Wie aus Fig. 1 zu ersehen, hat der Motor 29 ein zylindrisches Gehäuse 31, dessen Längs- achse mit der Achse der Motorwelle 27 und der Längsachse 33 des Schüttelgerätegehäuses 3 zusammenfällt. Die Achse des Drehtellers 19 erstreckt sich parallel zur Achse der Motorwelle 27, jedoch mit einem exzentrischen Versatz e, so daß bei Drehung der Motorwelle 27 in bezug auf den Probengefäßaufnah- meteller 19 eine Unwucht hervorgerufen wird, die zur Erzeugung einer Schüttelkraft auf ein bestimmungsgemäß auf der Probengefaßaufnahme 19 aufsitzendes Probengefäß 23 dient.The rubber plate 19 serving as a sample vessel receptacle extends axially through the opening 17 of the lid cap 15 and is via a coupling element 25 rotatably connected to the shaft 27 of a DC electric motor 29, which is housed in the upper housing section 5. As can be seen from FIG. 1, the motor 29 has a cylindrical housing 31, the longitudinal axis of which coincides with the axis of the motor shaft 27 and the longitudinal axis 33 of the shaker housing 3. The axis of the turntable 19 extends parallel to the axis of the motor shaft 27, but with an eccentric offset e, so that when the motor shaft 27 rotates, an unbalance is caused in relation to the sample vessel receiving plate 19, which is intended to generate a shaking force the sample vessel receptacle 19 serves as a sample vessel 23.
Der Elektromotor 29 ist durch Gleitführungselemente 35, 37 in dem Schüttelgerätegehäuse 3 zentriert, wobei der Elektromotor 29 an den Gleitführungselementen 35, 37 befestigt - und zusammen mit den Gleitführungselementen 35, 37 längs der Gehäuseachse 33 um eine kleine Wegstrecke x verschiebbar ist.The electric motor 29 is centered in the shaker housing 3 by sliding guide elements 35, 37, the electric motor 29 being fastened to the sliding guide elements 35, 37 - and, together with the sliding guide elements 35, 37, being displaceable by a small distance x along the housing axis 33.
Das untere Gleitführungselement 37 liegt mit seiner Unterseite auf einer Schraubenfeder 39 auf, die sich andererseits an einer Trägerplatte 41 am oberen Ende des unteren Gehäuseabschnittes 7 abstützt. Die Feder 39 umgibt einen Ein/Aus-Schalter 43, der als Schließer ausgebildet ist und einen in Rich- tung zur Unterseite des Elektromotors 29 federnd vorgespannten Schaltbetätigungsstift 45 aufweist. Der Ein/Aus-Schalter 43 verbindet die (nicht gezeigten) elektrischen Versorgungsleitungen des Elektromotors 29 mit den Ausgangsanschlüssen eines Akkumulators 47, der in dem unteren Gehäuseabschnitt 7 nach Abnahme des Verschlußdeckels 48 austauschbar untergebracht ist .The lower sliding guide element 37 lies with its underside on a helical spring 39 which, on the other hand, is supported on a carrier plate 41 at the upper end of the lower housing section 7. The spring 39 surrounds an on / off switch 43 which is designed as a closer and has a switch actuating pin 45 which is resiliently biased towards the underside of the electric motor 29. The on / off switch 43 connects the (not shown) electrical supply lines of the electric motor 29 to the output connections of an accumulator 47, which is housed in the lower housing section 7 after the closure cover 48 has been removed.
In Fig. 1 ist das Schüttelgerät 1 im ausgeschalteten Zustand dargestellt. Es wird automatisch dadurch eingeschaltet, daß das Probengefäß 23 bestimmungsgemäß auf den Probengefäßauf- nahmeteller 19 in Richtung des Pfeiles Y aufgesetzt - und dabei eine den Probengefäßaufnahmeteller 19 zusammen mit dem Kupplungselement 25, den Gleitführungselementen 35, 37 und dem Elektromotor 29 gegen die Kraft der Feder 39 verschiebende Kraft aufgebracht wird. Bei dieser Verschiebung wird der Schaltbetätigungsstift 45 des Ein/Aus-Schalters 43 von der 5 Unterseite des Elektromotors 29 beaufschlagt und in den Einschaltzustand gedrückt, so daß die elektrische Verbindung zwischen dem Elektromotor 29 und dem Akkumulator hergestellt - und damit der Elektromotor 29 in Betrieb gesetzt wird, um den Probengefäßaufnahmeteller 19 zu drehen, so daß eine in dem o Probengefäß 23 vorhandene Suspension aufgeschüttelt wird.In Fig. 1, the shaker 1 is shown in the switched-off state. It is automatically switched on in that the sample vessel 23 is placed on the sample vessel receiving plate 19 in the direction of the arrow Y as intended - and thereby one of the sample vessel receiving plates 19 together with the Coupling element 25, the sliding guide elements 35, 37 and the electric motor 29 against the force of the spring 39 displacing force is applied. During this shift, the switching actuating pin 45 of the on / off switch 43 is acted upon by the 5 underside of the electric motor 29 and pressed into the switched-on state, so that the electrical connection between the electric motor 29 and the accumulator is established - and thus the electric motor 29 is put into operation is to rotate the sample vessel receiving plate 19 so that a suspension present in the o sample vessel 23 is shaken.
Die Bedienungsperson hält das Schüttelgerät mit einer Hand an dem Griffabschnitt 11, wobei sie mit der anderen Hand das Probengefäß 23 auf den Probengefäßaufnahmeteller 19 aufdrückt. 5The operator holds the shaker with one hand on the grip section 11, while with the other hand presses the sample vessel 23 onto the sample vessel receiving plate 19. 5
Sobald die Bedienungsperson unter Wegnahme des axialen Druckes das Probengefäß 23 vom Probengefäßaufnahmeteller 19 abhebt, verschiebt die Rückstellfeder 39 die Baugruppe aus Elektromotor, Gleitführungselementen 35, 37, Kupplungselement 25 und 0 Probengefäßaufnahmeteller 19 wieder in die in Fig. 1 gezeigte Außerbetriebsstellung, wobei der Schaltbetätigungsstift 45 unter seiner Vorspannung folgt und der Ein/Aus-Schalter 43 in den Ausschaltzustand übergeht. Die Vorspannung der Rückstellfeder 39 sorgt gleichermaßen dafür, daß in der Außerbetriebs- 5 Stellung eine Ringschulter 46 an dem Probengefäßaufnahmeteller 19 gegen die Innenseite der Deckelkappe 15 gedrückt wird, um somit Dichtwirkung zu erzielen.As soon as the operator lifts the sample vessel 23 from the sample vessel receiving plate 19 while removing the axial pressure, the return spring 39 moves the assembly comprising the electric motor, sliding guide elements 35, 37, coupling element 25 and 0 sample vessel receiving plate 19 back into the inoperative position shown in FIG. 1, the switching actuating pin 45 follows under its bias and the on / off switch 43 changes to the off state. The prestressing of the return spring 39 likewise ensures that, in the inoperative position, an annular shoulder 46 on the sample vessel receiving plate 19 is pressed against the inside of the lid cap 15 in order to achieve a sealing effect.
Zur Begrenzung des axialen Verschiebeweges der vorstehend 30 genannten Baugruppe 19, 25, 29, 35, 37 nach oben ist ein mit einer Durchführungsöffnung für die Welle 27 versehener Sicherungsring 49 vorgesehen, der in der Außerbetriebsstellung gemäß Fig. 1 an der Oberseite des Gleitführungselementes 35 anliegt. Ein weiterer Anschlag 51 ist an dem Ein/Aus-Schalter 35 43 vorgesehen, wobei der Anschlag 51 von der Unterseite des Elektromotors 29 beaufschlagt wird, wenn das Schüttelgerät 1 in Betrieb ist. In einer beispielhaften Ausfuhrungsform des in Fig. 1 gezeigten Ausführungsbeispiels hat das Schüttelgerät 1 eine axiale Länge von etwa 170 mm, wobei der Außendurchmesser des oberen Gehäuseabschnittes 5 etwa 40 mm und der Außendurchmesser des unteren Gehäuseabschnittes 7 etwa 50 mm betragen. Die axiale Länge des oberen Gehäuseabschnittes 5 ist etwa 105 mm. Der exzentrische Versatz e des Probengefäßaufnahmetellers 19 relativ zur Achse 33 des Schüttelgerätegehäuses 3 liegt in der Größenordnung von 1 mm. Es sei jedoch betont, daß diese Maße beispielhaft für eine bevorzugte Ausfuhrungsform genannt sind und keinesfalls als Beschränkung aufgefaßt werden sollen.To limit the axial displacement path of the above-mentioned assembly 19, 25, 29, 35, 37 upwards, a securing ring 49 is provided which has a through opening for the shaft 27 and which, in the inoperative position according to FIG. 1, rests on the top of the sliding guide element 35 . Another stop 51 is provided on the on / off switch 35 43, the stop 51 being acted upon from the underside of the electric motor 29 when the shaker 1 is in operation. In an exemplary embodiment of the embodiment shown in FIG. 1, the shaker 1 has an axial length of approximately 170 mm, the outer diameter of the upper housing section 5 being approximately 40 mm and the outer diameter of the lower housing section 7 being approximately 50 mm. The axial length of the upper housing section 5 is approximately 105 mm. The eccentric offset e of the sample vessel receiving plate 19 relative to the axis 33 of the shaker housing 3 is of the order of 1 mm. However, it should be emphasized that these dimensions are given as examples of a preferred embodiment and should in no way be interpreted as limitations.
Bei 53 ist in Fig. 1 ein Ständer für das Schüttelgerät 1 mit gestrichelten Linien angedeutet. Der Ständer hat eine Ausneh- mung 55, in die das Schüttelgerät 1 mit dem unteren Gehäuseabschnitt 7 passend einsetzbar ist. Der Ständer 53 ist hinreichend stabil, um das Schüttelgerät 1 im Schüttelbetrieb sicher zu halten.At 53 in Fig. 1, a stand for the shaker 1 is indicated with dashed lines. The stand has a recess 55 in which the shaker 1 with the lower housing section 7 can be inserted in a suitable manner. The stand 53 is sufficiently stable to hold the shaker 1 securely in the shaking mode.
Gemäß einer nicht gezeigten Variante kann in dem Ständer 53 ein Ladegerät für den Akkumulator 47 integriert sein, wobei komplementäre elektrische Steckeranschlüsse des Akkumulators 47 und des Ladegerätes beim Einsetzen des Schüttelgerätes 1 in die Ausnehmung 55 des Ständers 53 in Eingriff kommen, so daß Netzladebetrieb stattfinden kann. In entsprechender Weise kann vorgesehen sein, daß das Schüttelgerät 1 über das Ladegerät aus dem elektrischen Netz betrieben wird. According to a variant not shown, a charger for the accumulator 47 can be integrated in the stand 53, complementary electrical plug connections of the accumulator 47 and the charger coming into engagement when the shaker 1 is inserted into the recess 55 of the stand 53, so that mains charging operation can take place . In a corresponding manner it can be provided that the shaker 1 is operated via the charger from the electrical network.
Claims
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU60939/98A AU6093998A (en) | 1997-01-16 | 1998-01-14 | Shaking apparatus for shaking sample vessels in the form of test tubes or similar items |
| DE59801306T DE59801306D1 (en) | 1997-01-16 | 1998-01-14 | SHAKER FOR SHAKING SAMPLES IN THE FORM OF TEST TUBE OR THE LIKE |
| BR9807491A BR9807491A (en) | 1997-01-16 | 1998-01-14 | Vibrating apparatus for shaking test graduates in the form of test tubes or the like. |
| AT98905295T ATE204785T1 (en) | 1997-01-16 | 1998-01-14 | SHAKER DEVICE FOR SHACKING SAMPLE VESSELS IN THE FORM OF TEST TUBE OR THE LIKE |
| EP98905295A EP0952887B1 (en) | 1997-01-16 | 1998-01-14 | Shaking apparatus for shaking sample vessels in the form of test tubes or similar items |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| DE29700725U DE29700725U1 (en) | 1997-01-16 | 1997-01-16 | Shaker for shaking sample vessels in the form of test tube or the like. |
| DE29700725.4 | 1997-01-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO1998031457A1 true WO1998031457A1 (en) | 1998-07-23 |
Family
ID=8034663
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/EP1998/000187 Ceased WO1998031457A1 (en) | 1997-01-16 | 1998-01-14 | Shaking apparatus for shaking sample vessels in the form of test tubes or similar items |
Country Status (8)
| Country | Link |
|---|---|
| EP (1) | EP0952887B1 (en) |
| AT (1) | ATE204785T1 (en) |
| AU (1) | AU6093998A (en) |
| BR (1) | BR9807491A (en) |
| DE (2) | DE29700725U1 (en) |
| ES (1) | ES2160401T3 (en) |
| PT (1) | PT952887E (en) |
| WO (1) | WO1998031457A1 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7654729B2 (en) * | 2004-03-31 | 2010-02-02 | Giovanni Passoni | Test-tube agitation device, comprising means for the optical detection of a test-tube |
| US8142067B2 (en) | 2007-02-07 | 2012-03-27 | Cirta, S.L. | Electromagnetic axial agitator |
| US8550696B2 (en) * | 2006-03-09 | 2013-10-08 | Eppendorf Ag | Laboratory mixer and vortexer |
| USD787085S1 (en) | 2015-02-27 | 2017-05-16 | Heathrow Scientific Llc | Head for a mixing apparatus |
| US9895670B2 (en) | 2015-02-27 | 2018-02-20 | Heathrow Scientific Llc | Head for a mixing apparatus |
| CN112295469A (en) * | 2020-10-19 | 2021-02-02 | 赵福振 | Oscillation mixing device for preparing bioactive nano organic zinc selenium animal and plant nutrient solution |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE102005058606B3 (en) * | 2005-12-07 | 2006-10-26 | Eppendorf Ag | Machine for shaking individual test tubes has mounting, into which lower end of tube is inserted and drive which moves mounting to shake tube, and sensors detecting when tube moves from desired position and generating stop signal |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555183A (en) * | 1984-02-06 | 1985-11-26 | Reese Scientific Corporation | High speed test tube agitator apparatus |
| US4883644A (en) * | 1987-12-09 | 1989-11-28 | Brandeis University | Microtube vortexer adapter and method of its use |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3542345A (en) * | 1968-06-13 | 1970-11-24 | Ultrasonic Systems | Ultrasonic vials and method and apparatus for mixing materials in same |
| DE2120435C3 (en) * | 1971-04-26 | 1981-11-05 | New Brunswick Scientific Co., Inc., New Brunswick, N.J. | Vibrator |
| DE3912723A1 (en) * | 1989-04-14 | 1990-10-18 | Naumann Dieter | Aiding biological material transfer from platinum wire eye - by high speed vibration derived from source in hollow handle |
| DE4036479A1 (en) * | 1990-11-15 | 1992-05-21 | Gimelli Produktions Ag | ELECTRICAL DEVICE SUPPLIED BY A RECHARGEABLE BATTERY |
-
1997
- 1997-01-16 DE DE29700725U patent/DE29700725U1/en not_active Expired - Lifetime
-
1998
- 1998-01-14 BR BR9807491A patent/BR9807491A/en not_active Application Discontinuation
- 1998-01-14 DE DE59801306T patent/DE59801306D1/en not_active Expired - Fee Related
- 1998-01-14 AT AT98905295T patent/ATE204785T1/en not_active IP Right Cessation
- 1998-01-14 PT PT98905295T patent/PT952887E/en unknown
- 1998-01-14 AU AU60939/98A patent/AU6093998A/en not_active Abandoned
- 1998-01-14 ES ES98905295T patent/ES2160401T3/en not_active Expired - Lifetime
- 1998-01-14 EP EP98905295A patent/EP0952887B1/en not_active Expired - Lifetime
- 1998-01-14 WO PCT/EP1998/000187 patent/WO1998031457A1/en not_active Ceased
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4555183A (en) * | 1984-02-06 | 1985-11-26 | Reese Scientific Corporation | High speed test tube agitator apparatus |
| US4883644A (en) * | 1987-12-09 | 1989-11-28 | Brandeis University | Microtube vortexer adapter and method of its use |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7654729B2 (en) * | 2004-03-31 | 2010-02-02 | Giovanni Passoni | Test-tube agitation device, comprising means for the optical detection of a test-tube |
| US8550696B2 (en) * | 2006-03-09 | 2013-10-08 | Eppendorf Ag | Laboratory mixer and vortexer |
| US8142067B2 (en) | 2007-02-07 | 2012-03-27 | Cirta, S.L. | Electromagnetic axial agitator |
| USD787085S1 (en) | 2015-02-27 | 2017-05-16 | Heathrow Scientific Llc | Head for a mixing apparatus |
| US9895670B2 (en) | 2015-02-27 | 2018-02-20 | Heathrow Scientific Llc | Head for a mixing apparatus |
| CN112295469A (en) * | 2020-10-19 | 2021-02-02 | 赵福振 | Oscillation mixing device for preparing bioactive nano organic zinc selenium animal and plant nutrient solution |
Also Published As
| Publication number | Publication date |
|---|---|
| DE29700725U1 (en) | 1998-05-20 |
| EP0952887A1 (en) | 1999-11-03 |
| EP0952887B1 (en) | 2001-08-29 |
| ATE204785T1 (en) | 2001-09-15 |
| PT952887E (en) | 2002-02-28 |
| ES2160401T3 (en) | 2001-11-01 |
| BR9807491A (en) | 2000-03-21 |
| AU6093998A (en) | 1998-08-07 |
| DE59801306D1 (en) | 2001-10-04 |
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