EP1488848B1 - System for elastically holding a container with regard to a mixing head in a mixer - Google Patents

System for elastically holding a container with regard to a mixing head in a mixer Download PDF

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Publication number
EP1488848B1
EP1488848B1 EP04291425A EP04291425A EP1488848B1 EP 1488848 B1 EP1488848 B1 EP 1488848B1 EP 04291425 A EP04291425 A EP 04291425A EP 04291425 A EP04291425 A EP 04291425A EP 1488848 B1 EP1488848 B1 EP 1488848B1
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EP
European Patent Office
Prior art keywords
arm
container
mixer
lever
lug
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EP04291425A
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German (de)
French (fr)
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EP1488848A2 (en
EP1488848A3 (en
Inventor
Guillaume Vannier
Gérard Fisson
Etienne-Pascal Ricard
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VMI SA
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VMI SA
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F27/00—Mixers with rotary stirring devices in fixed receptacles; Kneaders
    • B01F27/80—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis
    • B01F27/805—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle
    • B01F27/806—Mixers with rotary stirring devices in fixed receptacles; Kneaders with stirrers rotating about a substantially vertical axis wherein the stirrers or the receptacles are moved in order to bring them into operative position; Means for fixing the receptacle with vertical displacement of the stirrer, e.g. in combination with means for pivoting the stirrer about a vertical axis in order to co-operate with different receptacles
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/40—Mounting or supporting mixing devices or receptacles; Clamping or holding arrangements therefor
    • B01F35/42—Clamping or holding arrangements for mounting receptacles on mixing devices
    • B01F35/422—Clamping or holding arrangements for mounting receptacles on mixing devices having a jaw-type or finger-type shape

Definitions

  • the invention relates to a system for reversibly holding a container in the mixing position in a mixer, and a mixer comprising such a holding system.
  • the document US Patent 4514833 discloses a mixer comprising a holding system whose jaws are moved by a worm.
  • Such mixers are known which are suitable for mixing any type of liquid or viscous product contained in a container. In particular, they can allow the production of emulsions from ingredients introduced into a container.
  • Such mixers must therefore allow the effective maintenance of a container facing the mixing head of the mixer. Indeed, the mixing head rotating at a certain speed, it can cause the movement of the container if it is not maintained. In addition, the mixers must allow the rapid introduction and release of containers under the mixing head regardless of the size of said containers.
  • the aim of the invention is to overcome these drawbacks by proposing a system for reversibly holding a container in the mixing position in a mixer which enables a quick and easy adjustment of the system depending on the size of the container.
  • this system does not require a new setting when exchanging a container by a container of the same size.
  • the system also ensures elastic clamping against the container without significant clamping effort.
  • the invention relates to a system for reversibly holding a container in the mixing position in a mixer, said system being intended to be fixed to a member of said mixer and comprising a first and a second arm which are mounted movable in relative rotation about an axis between a position of insertion of the container between the two arms and a locked position in which the arms surround the container by exerting a peripheral clamping force, said system further comprising a lever reversible locking device which is rotatably mounted about the axis, a resiliently rotating constraining device which is integral on the one hand with the first arm and on the other hand with the lever and a reversible locking device for the relative rotation of the second arm relative to the lever.
  • the invention relates to a mixer comprising a frame on which is mounted a mixing head, said mixer further comprising a reversible holding system of a container facing the mixing head as described above .
  • Figure 1 is a schematic perspective view of a mixer provided with a holding system according to the invention.
  • FIG. 2 is a perspective view from above of the holding system according to FIG. 1.
  • FIG. 3 is a perspective view from below of the holding system according to FIG.
  • FIG. 4 is a bottom representation of the first arm of the holding system according to FIGS. 2 and 3.
  • FIG. 5 is a bottom representation of the second arm of the holding system according to FIGS. 2 and 3.
  • FIG. 6 is a bottom view of the locking lever of the holding system according to FIGS. 2 and 3.
  • Figures 7a, 7b, 7c are top views of different positions of the holding system according to Figures 2 and 3, respectively without a container, with a container and during the release of the container.
  • the mixer 1 comprises a frame 2 provided with a column 3 on which is mounted longitudinally sliding an assembly supporting a mixing head 4.
  • the mixing head 4 comprises a shaft driven in rotation by a motor and provided at its end with a mixing tool, a propeller for example.
  • the base of the column 3 is provided with a base 5 on which rests the mixer 1.
  • a holding system 6 is arranged above the base 5.
  • This system is mounted on the column, for example by means of a ring 7 and clamping means (not shown) of the ring 7 on the column 3.
  • the clamping means can be loosened in order to adjust, by sliding along the column 3, the height of the holding system 6 according to the dimensions of the container used.
  • the ring 7 is provided with a bore allowing the passage of a rod 8 of the holding system.
  • the rod 8 is arranged so that the system of 6 can maintain a container facing the mixing head 4.
  • Fastening means (not shown) of the rod 8 in the bore of the ring 7 are provided.
  • the holding system 6 includes a first 9 and a second arm.
  • the rod 8 is fixed under the second arm 10, as can be seen in Figure 3, for example by means of screws.
  • the second arm 10 is thus fixed relative to the frame 2 of the mixer 1 when the clamping means are tight and the rod 8 is fixed in the bore of the ring 7.
  • the first and second arms 9 and 10 are mounted in relative rotation about a substantially vertical axis 11 when the mixer rests on its base and has a curvilinear shape that can surround a container. Thus the first and second arms form a jaw when associated.
  • a locking lever 12 is further provided, rotatably mounted about the axis 11 and interposed between the first and second arms 9 and 10.
  • a first 13 and a second 14 coaxial lugs are respectively provided on the face of the top 16 and on the underside 15 of the locking lever 12 in the vicinity of its periphery and near the axis 11.
  • the first lug 13 is engaged in a groove 17 provided in the second arm in the vicinity of its periphery and near the axis 11.
  • the groove 17 is arranged to allow relative rotation of the lever relative to the second arm on a defined stroke .
  • the groove 17 has a curvilinear shape whose center is the axis 11, as shown in FIG.
  • a reversible locking device comprising a wheel 19 is mounted on the first lug 14 which is threaded.
  • a reversible locking device comprising a wheel 19 is mounted on the first lug 14 which is threaded.
  • the second lug 14 is engaged in a groove 18 provided in the first arm 9 in the vicinity of its periphery and near the axis 11.
  • the groove 18 is arranged to allow the relative rotation of the lever 12 relative to the first arm 9 on a definite race.
  • the groove 18 has a curvilinear shape whose center is the axis 11, as shown in FIG.
  • the second lug 14 may also be threaded in order to be able to screw a fixing means, for example a nut (not shown), to maintain the first arm 9 under the lever 12.
  • a fixing means for example a nut (not shown)
  • the screwing of the nut is provided to leave a game between the first arm 9 and the lever 12, thus the rotation of the lever relative to the first arm is possible.
  • a resilient device 20 for rotation is secured to the first arm 9 and the lever 12.
  • This device 20 comprises a first cubic member 21 secured to the underside of the first arm 9 and extending around the axis 11.
  • This first member comprises a housing 22 in which is mounted in rotation about the axis 11 a second cubic member 23 integral with the underside 15 of the lever, as shown in Figure 3.
  • the first and second cubic members 21 and 23 are arranged such that the second cubic member 23 is offset by an angle substantially equal to 45 ° with respect to the first cubic member 21 when no force is applied to the constraint device 20.
  • Elastic means 24 are arranged in the housing 22 in the spaces created by the offset between the first and second cubic members 21 and 23. Thus, it is possible to elastically constrain the relative rotation of the second member 23 in the housing 22.
  • the elastic means 24 may be formed of four elastomeric material beads which are each disposed between an edge of the first member 21 and a face of the second member 23.
  • other resilient biasing devices may be provided, such as a return spring arranged between the first arm 9 and the lever 12 for example.
  • the first and second arms 9 and 10 comprise pads 25, 26 and 27 flexible arranged on their top face. These pads are intended to transmit the clamping force of the holding system 6 on the container held in its mixing position.
  • the second arm 10 comprises two pads 25 and 26, mounted on pins 28 provided on the upper face of the second arm near its end remote from the axis 11, as shown in FIG. 5. These pads are formed of a strip of elastomeric material 29 which is wound taut around two pins 28. The strip of material protrudes radially inwardly of the arm.
  • the first arm 9 comprises a single shoe 27 similar to the pads 25 and 26 and also mounted on two pins 28.
  • the two pins 28 are mounted on a rotating part 30 mounted on a lug 31 located on the top face of the first arm in the vicinity its end remote from the axis 11, as shown in Figures 3 and 4.
  • the rotation of the part 30 makes it possible to adapt the position of the pad 27 to the shape of the container held. A better clamping of the container is thus ensured.
  • the holding system 6 does not hold any container.
  • the second arm is fixed in rotation relative to the frame of the mixer. Without container and the wheel 19 being loosened, the rotation of the first arm 9 relative to the second 10 is free and inelastic within the limits defined by the grooves 17 and 18.
  • the rotation of the lever 12 is also free within the limits defined by the grooves 17 and 18.
  • the rotation of the lever 12 relative to the first arm 9 is further limited by the resilient biasing device 20. This position is the insertion position of a container.
  • the first arm of the second is thus removed by opening the jaw defined by these arms 9 and 10. It then disposes the container against the pads 25 and 26 of the second arm 10 so that it is opposite the mixing head 4.
  • the first arm 9 is then returned to the container by closing the jaw and applying the pad 27 against the container, as shown in Figure 7b where a container 32 is held by the holding system 6.
  • the pad 27 thus forms against the support on the container, and when the lever is brought to the first arm, the rotation of the second cubic member 23 in the housing 22 is elastically constrained and the rotation of the first arm relative to the second becomes a rotation with an elastic return that tends to close the jaw.
  • the knob 19 is tightened on the pin 13 so as to make the lever 12 fixed with respect to the second arm 10.
  • a retaining system 6 can be disengaged and clutched as desired by moving the lever 12 and tightening the wheel 19.
  • the two arms of the holding system 6 exert a peripheral clamping force around the container, thus holding it firmly facing the mating head 4 in a locking position.
  • the peripheral clamping is however limited so as not to damage the maintained container. This limit is fixed by the groove 18, the ends of which prevent the application of an elastic stress of excessive intensity between the second cubic member 23 and the housing 22.
  • the vibrations caused by the rotation of the mixing head are partially absorbed by the elastic movement of the first arm 9. The holding system is not disturbed by these vibrations and preserves its effectiveness during operation of the mixer.
  • the first arm is moved away from the second, the container is placed and the first arm returns to the lock position.
  • the dimensions of the grooves 17 and 18 and those of the two arms 9 and 10 are for example chosen to allow the system to maintain containers having a capacity ranging from 0.1 L to about 20 L.
  • the holding system 6 may also comprise a safety sensor 33 which is intended to be connected to the control device of the mixer 1, as represented in FIG. 3.
  • This sensor 33 for example based on an angle measurement, is arranged for issuing a signal prohibiting the start of the mixer 1 in case of improper clamping of the container 32 in the mixer 1.

Description

L'invention concerne un système de maintien réversible d'un récipient en position de mélange dans un mélangeur, ainsi qu'un mélangeur comprenant un tel système de maintien. Le document US-A-4514833 expose un mélangeur comprenant un système de maintien dont les mâchoires sont mues par une vis sans fin.The invention relates to a system for reversibly holding a container in the mixing position in a mixer, and a mixer comprising such a holding system. The document US Patent 4514833 discloses a mixer comprising a holding system whose jaws are moved by a worm.

On connaît de tels mélangeurs qui sont adaptés pour le mélange de tout type de produits sous forme liquide ou visqueuse contenus dans un récipient. En particulier, ils peuvent permettre la réalisation d'émulsions à partir d'ingrédients introduits dans un récipient.Such mixers are known which are suitable for mixing any type of liquid or viscous product contained in a container. In particular, they can allow the production of emulsions from ingredients introduced into a container.

De tels mélangeurs doivent donc permettre le maintien efficace d'un récipient en regard de la tête de mélange du mélangeur. En effet, la tête de mélange tournant à une certaine vitesse, elle peut entraîner le déplacement du récipient si celui-ci n'est pas maintenu. De plus, les mélangeurs doivent permettre l'introduction et le dégagement rapides des récipients sous la tête de mélange quelle que soit la taille desdits récipients.Such mixers must therefore allow the effective maintenance of a container facing the mixing head of the mixer. Indeed, the mixing head rotating at a certain speed, it can cause the movement of the container if it is not maintained. In addition, the mixers must allow the rapid introduction and release of containers under the mixing head regardless of the size of said containers.

On connaît des systèmes de maintien permettant de maintenir des récipients de tailles différentes en regard de la tête de mélange. Ces systèmes comprennent des mâchoires, dont l'écartement est réglable en fonction de la taille du récipient, et des organes de serrage rigide permettant de fixer l'écartement des mâchoires. L'introduction et le maintien d'un récipient implique donc de desserrer les organes de serrage, de régler l'écartement des mâchoires en fonction de la taille du récipient et de resserrer les organes de serrage.There are known holding systems to maintain containers of different sizes facing the mixing head. These systems comprise jaws, whose spacing is adjustable depending on the size of the container, and rigid clamping members for fixing the spacing of the jaws. The introduction and maintenance of a container therefore involves loosening the clamping members, adjusting the spacing of the jaws according to the size of the container and tightening the clamping members.

En outre, de tels systèmes sont peu pratiques car ils impliquent un nouveau réglage à chaque fois que l'on change de récipient, même si le récipient suivant est de même dimension que le précédent. Par ailleurs, pour que l'écartement des mâchoires soit maintenu, des efforts de serrage importants sont nécessaires car, sous l'effet du mouvement de la tête de mélange, les mâchoires subissent des contraintes qui tendent à faire desserrer les organes de serrage.In addition, such systems are impractical because they involve a new setting each time you change the container, even if the next container is the same size as the previous one. Moreover, in order to keep the jaw gap apart, considerable clamping forces are necessary because, under the effect of the movement of the mixing head, the jaws undergo stresses which tend to loosen the clamping members.

L'invention vise à palier ces inconvénients en proposant un système de maintien réversible d'un récipient en position de mélange dans un mélangeur qui permet un réglage simple et rapide du système en fonction de la taille du récipient. De plus, ce système ne nécessite pas de nouveau réglage quand on échange un récipient par un récipient de même taille. Le système permet également d'assurer un serrage élastique contre le récipient sans effort de serrage important.The aim of the invention is to overcome these drawbacks by proposing a system for reversibly holding a container in the mixing position in a mixer which enables a quick and easy adjustment of the system depending on the size of the container. In addition, this system does not require a new setting when exchanging a container by a container of the same size. The system also ensures elastic clamping against the container without significant clamping effort.

A cet effet et selon un premier aspect, l'invention concerne un système de maintien réversible d'un récipient en position de mélange dans un mélangeur, ledit système étant destiné à être fixé à un organe dudit mélangeur et comprenant un premier et un deuxième bras qui sont montés mobile en rotation relative autour d'un axe entre une position d'insertion du récipient entre les deux bras et une position verrouillée dans laquelle les bras entourent le récipient en exerçant un effort de serrage périphérique, ledit système comprenant en outre un levier de verrouillage réversible qui est monté en rotation autour de l'axe, un dispositif de contrainte élastique en rotation qui est solidaire d'une part du premier bras et d'autre part du levier et un dispositif de verrouillage réversible de la rotation relative du deuxième bras par rapport au levier.For this purpose and according to a first aspect, the invention relates to a system for reversibly holding a container in the mixing position in a mixer, said system being intended to be fixed to a member of said mixer and comprising a first and a second arm which are mounted movable in relative rotation about an axis between a position of insertion of the container between the two arms and a locked position in which the arms surround the container by exerting a peripheral clamping force, said system further comprising a lever reversible locking device which is rotatably mounted about the axis, a resiliently rotating constraining device which is integral on the one hand with the first arm and on the other hand with the lever and a reversible locking device for the relative rotation of the second arm relative to the lever.

Selon un deuxième aspect, l'invention concerne un mélangeur comprenant un bâti sur lequel est monté une tête de mélange, ledit mélangeur comprenant en outre un système de maintien réversible d'un récipient en regard de la tête de mélange tel que décrit ci-dessus.According to a second aspect, the invention relates to a mixer comprising a frame on which is mounted a mixing head, said mixer further comprising a reversible holding system of a container facing the mixing head as described above .

D'autres objets et avantages de l'invention apparaîtront au cours de la description qui suit, faite en référence aux dessins annexés.Other objects and advantages of the invention will become apparent from the following description, made with reference to the accompanying drawings.

La figure 1 est une représentation schématique en perspective d'un mélangeur pourvu d'un système de maintien selon l'invention.Figure 1 is a schematic perspective view of a mixer provided with a holding system according to the invention.

La figure 2 est une vue en perspective de dessus du système de maintien selon la figure 1.FIG. 2 is a perspective view from above of the holding system according to FIG. 1.

La figure 3 est une vue en perspective de dessous du système de maintien selon la figure 1.FIG. 3 is a perspective view from below of the holding system according to FIG.

La figure 4 est une représentation de dessous du premier bras du système de maintien selon ies figures 2 et 3.FIG. 4 is a bottom representation of the first arm of the holding system according to FIGS. 2 and 3.

La figure 5 est une représentation de dessous du deuxième bras du système de maintien selon les figures 2 et 3.FIG. 5 is a bottom representation of the second arm of the holding system according to FIGS. 2 and 3.

La figure 6 est une représentation de dessous du levier de verrouillage du système de maintien selon les figures 2 et 3.FIG. 6 is a bottom view of the locking lever of the holding system according to FIGS. 2 and 3.

Les figures 7a, 7b, 7c sont des représentations de dessus de différentes positions du système de maintien selon les figures 2 et 3, respectivement sans récipient, avec un récipient et lors du dégagement du récipient.Figures 7a, 7b, 7c are top views of different positions of the holding system according to Figures 2 and 3, respectively without a container, with a container and during the release of the container.

Dans la description qui suit, les termes dessus, dessous sont définis selon l'axe [Oz) représenté sur la figure 1 et correspondant à la direction d'élévation du mélangeur.In the following description, the terms above, below are defined along the axis [Oz] shown in Figure 1 and corresponding to the elevation direction of the mixer.

En référence à la figure 1, le mélangeur 1 comprend un bâti 2 pourvu d'une colonne 3 sur laquelle est montée coulissant longitudinalement un ensemble supportant une tête de mélange 4. La tête de mélange 4 comprend un arbre entraîné en rotation par un moteur et pourvu à son extrémité d'un outil de mélange, une hélice par exemple.Referring to Figure 1, the mixer 1 comprises a frame 2 provided with a column 3 on which is mounted longitudinally sliding an assembly supporting a mixing head 4. The mixing head 4 comprises a shaft driven in rotation by a motor and provided at its end with a mixing tool, a propeller for example.

La base de la colonne 3 est pourvue d'un socle 5 sur lequel repose le mélangeur 1. Un système de maintien 6 est agencé au dessus du socle 5. Ce système est monté sur la colonne, par exemple au moyen d'une bague 7 et de moyens de serrage (non représentés) de la bague 7 sur la colonne 3. Les moyens de serrage peuvent être desserrés afin de régler, par coulissement le long de la colonne 3, la hauteur du système de maintien 6 en fonction des dimensions du récipient utilisé.The base of the column 3 is provided with a base 5 on which rests the mixer 1. A holding system 6 is arranged above the base 5. This system is mounted on the column, for example by means of a ring 7 and clamping means (not shown) of the ring 7 on the column 3. The clamping means can be loosened in order to adjust, by sliding along the column 3, the height of the holding system 6 according to the dimensions of the container used.

La bague 7 est pourvue d'un alésage permettant le passage d'une tige 8 du système de maintien. La tige 8 est agencée de telle sorte que le système de maintien 6 peut maintenir un récipient en regard de la tête de mélange 4. Des moyens de fixation (non représentés) de la tige 8 dans l'alésage de la bague 7 sont prévus.The ring 7 is provided with a bore allowing the passage of a rod 8 of the holding system. The rod 8 is arranged so that the system of 6 can maintain a container facing the mixing head 4. Fastening means (not shown) of the rod 8 in the bore of the ring 7 are provided.

En référence aux figures 2 et 3, le système de maintien 6 comprend un premier 9 et un deuxième 10 bras. La tige 8 est fixée sous le deuxième bras 10, comme on peut le voir figure 3, par exemple au moyen de vis. Le deuxième bras 10 est donc fixe par rapport au bâti 2 du mélangeur 1 quand les moyens de serrage sont serrés et que la tige 8 est fixée dans l'alésage de la bague 7.Referring to Figures 2 and 3, the holding system 6 includes a first 9 and a second arm. The rod 8 is fixed under the second arm 10, as can be seen in Figure 3, for example by means of screws. The second arm 10 is thus fixed relative to the frame 2 of the mixer 1 when the clamping means are tight and the rod 8 is fixed in the bore of the ring 7.

Les premier et deuxième bras 9 et 10 sont montés en rotation relative autour d'un axe 11 sensiblement vertical lorsque le mélangeur repose sur son socle et présentent une forme curviligne pouvant entourer un récipient. Ainsi le premier et deuxième bras forment une mâchoire lorsqu'ils sont associés.The first and second arms 9 and 10 are mounted in relative rotation about a substantially vertical axis 11 when the mixer rests on its base and has a curvilinear shape that can surround a container. Thus the first and second arms form a jaw when associated.

Un levier de verrouillage 12 est en outre prévu, monté en rotation autour de l'axe 11 et interposé entre le premier et le deuxième bras 9 et 10. Un premier 13 et un deuxième 14 ergots coaxiaux sont prévus respectivement sur la face du dessus 16 et sur la face du dessous 15 du levier de verrouillage 12 au voisinage de sa périphérie et à proximité de l'axe 11.A locking lever 12 is further provided, rotatably mounted about the axis 11 and interposed between the first and second arms 9 and 10. A first 13 and a second 14 coaxial lugs are respectively provided on the face of the top 16 and on the underside 15 of the locking lever 12 in the vicinity of its periphery and near the axis 11.

Le premier ergot 13 est engagé dans une gorge 17 prévue dans le deuxième bras au voisinage de sa périphérie et à proximité de l'axe 11. La gorge 17 est agencée pour permettre la rotation relative du levier par rapport au deuxième bras sur une course définie. A cet effet, la gorge 17 présente une forme curviligne dont le centre est l'axe 11, comme représenté sur la figure 5.The first lug 13 is engaged in a groove 17 provided in the second arm in the vicinity of its periphery and near the axis 11. The groove 17 is arranged to allow relative rotation of the lever relative to the second arm on a defined stroke . For this purpose, the groove 17 has a curvilinear shape whose center is the axis 11, as shown in FIG.

Un dispositif de verrouillage réversible comprenant une molette 19 est montée sur le premier ergot 14 qui est fileté. Ainsi, on peut bloquer le déplacement de l'ergot 14 dans la gorge 17 en vissant la molette 19 et libérer ce déplacement en dévissant la molette 19. Ceci a pour effet d'empêcher ou de permettre la rotation du levier de verrouillage 12 par rapport au deuxième bras 10.A reversible locking device comprising a wheel 19 is mounted on the first lug 14 which is threaded. Thus, one can block the displacement of the lug 14 in the groove 17 by screwing the knob 19 and release this movement by unscrewing the knob 19. This has the effect of preventing or allowing the rotation of the locking lever 12 relative at the second arm 10.

Le deuxième ergot 14 est engagé dans une gorge 18 prévue dans le premier bras 9 au voisinage de sa périphérie et à proximité de l'axe 11. La gorge 18 est agencée pour permettre la rotation relative du levier 12 par rapport au premier bras 9 sur une course définie. A cet effet, la gorge 18 présente une forme curviligne dont le centre est l'axe 11, comme représenté sur la figure 4.The second lug 14 is engaged in a groove 18 provided in the first arm 9 in the vicinity of its periphery and near the axis 11. The groove 18 is arranged to allow the relative rotation of the lever 12 relative to the first arm 9 on a definite race. For this purpose, the groove 18 has a curvilinear shape whose center is the axis 11, as shown in FIG.

Le deuxième ergot 14 peut également être fileté afin de pouvoir y visser un moyen de fixation, par exemple un écrou (non représenté), pour maintenir le premier bras 9 sous le levier 12. Le vissage de l'écrou est prévu pour laisser un jeu entre le premier bras 9 et le levier 12, ainsi la rotation du levier par rapport au premier bras est possible.The second lug 14 may also be threaded in order to be able to screw a fixing means, for example a nut (not shown), to maintain the first arm 9 under the lever 12. The screwing of the nut is provided to leave a game between the first arm 9 and the lever 12, thus the rotation of the lever relative to the first arm is possible.

Un dispositif de contrainte 20 élastique en rotation est solidaire du premier bras 9 et du levier 12. Ce dispositif 20 comprend un premier organe cubique 21 solidaire de la face de dessous du premier bras 9 et s'étendant autour de l'axe 11. Ce premier organe comprend un logement 22 dans lequel est monté en rotation autour de l'axe 11 un deuxième organe cubique 23 solidaire de la face du dessous 15 du levier, comme représenté sur la figure 3. Le premier et le deuxième organes cubiques 21 et 23 sont agencés de telle sorte que le deuxième organe cubique 23 est décalé d'un angle sensiblement égal à 45° par rapport au premier organe cubique 21 lorsque qu'aucune force n'est appliquée sur le dispositif de contrainte 20.A resilient device 20 for rotation is secured to the first arm 9 and the lever 12. This device 20 comprises a first cubic member 21 secured to the underside of the first arm 9 and extending around the axis 11. This first member comprises a housing 22 in which is mounted in rotation about the axis 11 a second cubic member 23 integral with the underside 15 of the lever, as shown in Figure 3. The first and second cubic members 21 and 23 are arranged such that the second cubic member 23 is offset by an angle substantially equal to 45 ° with respect to the first cubic member 21 when no force is applied to the constraint device 20.

Des moyens élastiques 24 sont disposés dans le logement 22 dans les espaces crées par le décalage entre le premier et le deuxième organes cubiques 21 et 23. Ainsi, on peut contraindre élastiquement la rotation relative du deuxième organe 23 dans le logement 22.Elastic means 24 are arranged in the housing 22 in the spaces created by the offset between the first and second cubic members 21 and 23. Thus, it is possible to elastically constrain the relative rotation of the second member 23 in the housing 22.

Les moyens élastiques 24 peuvent être formés de quatre boudins en matériau élastomérique qui sont disposés chacun entre une arête du premier organe 21 et une face du deuxième organe 23.The elastic means 24 may be formed of four elastomeric material beads which are each disposed between an edge of the first member 21 and a face of the second member 23.

Selon des variantes non représentées, d'autres dispositifs de contrainte élastique peuvent être prévus, tels qu'un ressort de rappel agencé entre le premier bras 9 et le ievier 12 par exempie.According to variants not shown, other resilient biasing devices may be provided, such as a return spring arranged between the first arm 9 and the lever 12 for example.

Le premier et deuxième bras 9 et 10 comprennent des patins 25, 26 et 27 souples agencés sur leur face de dessus. Ces patins sont destinés à transmettre l'effort de serrage du système de maintien 6 sur le récipient maintenu dans sa position de mélange.The first and second arms 9 and 10 comprise pads 25, 26 and 27 flexible arranged on their top face. These pads are intended to transmit the clamping force of the holding system 6 on the container held in its mixing position.

Selon la réalisation représentée sur les figures, le deuxième bras 10 comprend deux patins 25 et 26, montés sur des pions 28 prévus sur la face de dessus du deuxième bras à proximité de son extrémité éloignée de l'axe 11, comme représenté sur la figure 5. Ces patins sont formés d'une bande de matériau élastomérique 29 qui est enroulée tendue autour de deux pions 28. La bande de matériau saille radialement vers l'intérieur du bras.According to the embodiment shown in the figures, the second arm 10 comprises two pads 25 and 26, mounted on pins 28 provided on the upper face of the second arm near its end remote from the axis 11, as shown in FIG. 5. These pads are formed of a strip of elastomeric material 29 which is wound taut around two pins 28. The strip of material protrudes radially inwardly of the arm.

Le premier bras 9 comprend un seul patin 27 similaire aux patins 25 et 26 et également monté sur deux pions 28. Les deux pions 28 sont montés sur une pièce rotative 30 montée sur un ergot 31 situé sur la face de dessus du premier bras au voisinage de son extrémité éloignée de l'axe 11, comme représenté sur les figure 3 et 4. La rotation de la pièce 30 permet d'adapter la position du patin 27 à la forme du récipient maintenu. Un meilleur serrage du récipient est ainsi assuré.The first arm 9 comprises a single shoe 27 similar to the pads 25 and 26 and also mounted on two pins 28. The two pins 28 are mounted on a rotating part 30 mounted on a lug 31 located on the top face of the first arm in the vicinity its end remote from the axis 11, as shown in Figures 3 and 4. The rotation of the part 30 makes it possible to adapt the position of the pad 27 to the shape of the container held. A better clamping of the container is thus ensured.

Le fonctionnement du système de maintien 6 va maintenant être décrit en référence aux figures 7a à 7c.The operation of the holding system 6 will now be described with reference to FIGS. 7a to 7c.

Sur la figure 7a, le système de maintien 6 ne maintient aucun récipient. Comme indiqué plus haut, le deuxième bras est fixe en rotation par rapport au bâti du mélangeur. Sans récipient et la molette 19 étant desserrée, la rotation du premier bras 9 par rapport au deuxième 10 est libre et non élastique dans les limites définies par les gorges 17 et 18. La rotation du levier 12 est également libre dans les limites définies par les gorges 17 et 18. La rotation du levier 12 par rapport au premier bras 9 est en outre limitée par le dispositif de contrainte élastique 20. Cette position est la position d'insertion d'un récipient.In FIG. 7a, the holding system 6 does not hold any container. As indicated above, the second arm is fixed in rotation relative to the frame of the mixer. Without container and the wheel 19 being loosened, the rotation of the first arm 9 relative to the second 10 is free and inelastic within the limits defined by the grooves 17 and 18. The rotation of the lever 12 is also free within the limits defined by the grooves 17 and 18. The rotation of the lever 12 relative to the first arm 9 is further limited by the resilient biasing device 20. This position is the insertion position of a container.

Pour introduire un récipient entre les deux bras, on écarte donc le premier bras du deuxième en ouvrant la mâchoire définie par ces bras 9 et 10. On dispose ensuite le récipient contre les patins 25 et 26 du deuxième bras 10 de façon à ce qu'il soit en regard de la tête de mélange 4.To introduce a container between the two arms, the first arm of the second is thus removed by opening the jaw defined by these arms 9 and 10. It then disposes the container against the pads 25 and 26 of the second arm 10 so that it is opposite the mixing head 4.

Le premier bras 9 est ensuite ramené vers le récipient en fermant la mâchoire et en appliquant le patin 27 contre le récipient, comme représenté sur la figure 7b où un récipient 32 est maintenu par le système de maintien 6.The first arm 9 is then returned to the container by closing the jaw and applying the pad 27 against the container, as shown in Figure 7b where a container 32 is held by the holding system 6.

Le patin 27 forme donc contre appui sur le récipient, et, lorsque le levier est amené vers le premier bras, la rotation du deuxième organe cubique 23 dans le logement 22 est contrainte élastiquement et la rotation du premier bras par rapport au deuxième devient une rotation avec un rappel élastique qui tend à fermer la mâchoire. Pour accentuer et préserver cette contrainte, on serre la molette 19 sur l'ergot 13 de façon à rendre le levier 12 fixe par rapport au deuxième bras 10.The pad 27 thus forms against the support on the container, and when the lever is brought to the first arm, the rotation of the second cubic member 23 in the housing 22 is elastically constrained and the rotation of the first arm relative to the second becomes a rotation with an elastic return that tends to close the jaw. To accentuate and preserve this constraint, the knob 19 is tightened on the pin 13 so as to make the lever 12 fixed with respect to the second arm 10.

On obtient ainsi un système de maintien 6 débrayable et embrayable à volonté par déplacement du levier 12 et serrage de la molette 19.Thus, a retaining system 6 can be disengaged and clutched as desired by moving the lever 12 and tightening the wheel 19.

De la sorte, les deux bras du système de maintien 6 exercent un effort de serrage périphérique autour du récipient, le maintenant ainsi fermement en regard de ia tête de méiange 4 dans une position de verrouillage. Le serrage périphérique est toutefois limité afin de ne pas endommager le récipient maintenu. Cette limite est fixée par la gorge 18 dont les extrémités empêchent d'appliquer une contrainte élastique d'intensité trop importante entre le deuxième organe cubique 23 et le logement 22. De plus, les vibrations provoquées par la rotation de la tête de mélange sont partiellement absorbées par le mouvement élastique du premier bras 9. Le système de maintien n'est donc pas perturbé par ces vibrations et préserve son efficacité lors du fonctionnement du mélangeur.In this way, the two arms of the holding system 6 exert a peripheral clamping force around the container, thus holding it firmly facing the mating head 4 in a locking position. The peripheral clamping is however limited so as not to damage the maintained container. This limit is fixed by the groove 18, the ends of which prevent the application of an elastic stress of excessive intensity between the second cubic member 23 and the housing 22. In addition, the vibrations caused by the rotation of the mixing head are partially absorbed by the elastic movement of the first arm 9. The holding system is not disturbed by these vibrations and preserves its effectiveness during operation of the mixer.

Une fois le levier 12 rendu fixe du deuxième bras 10, le réglage du système de maintien pour ie récipient est effectué. Ce réglage est conservé même lorsqu'on retire le récipient comme représenté sur la figure 7c. Pour dégager le récipient du système de maintien, on écarte le premier bras 9 du deuxième 10, cet écartement contraint de façon supplémentaire la rotation du deuxième organe cubique 23 dans le logement 22. Une fois le récipient dégagé, le premier bras est donc ramené automatiquement à sa position initiale dans la position verrouillée du système de maintien.Once the lever 12 is fixed from the second arm 10, the setting of the holding system for the container is carried out. This setting is retained even when removing the container as shown in Figure 7c. To disengage the container from the holding system, the first arm 9 is moved away from the second 10, this spacing further constrains the rotation of the second cubic member 23 in the housing 22. Once the container is cleared, the first arm is automatically brought back. at its initial position in the locked position of the holding system.

Ainsi, si le même récipient ou un autre de mêmes dimensions doit être placé dans le système de maintien 6, le réglage n'est plus à effectuer, on écarte le premier bras du deuxième, on place le récipient et le premier bras revient dans la position de verrouillage.Thus, if the same container or another of the same dimensions must be placed in the holding system 6, the adjustment is no longer to be made, the first arm is moved away from the second, the container is placed and the first arm returns to the lock position.

Si les dimensions du récipient varient, il suffit de desserrer la molette 19 afin de libérer le levier 12 par rapport au deuxième bras 10 et d'effectuer un nouveau réglage.If the dimensions of the container vary, simply loosen the knob 19 to release the lever 12 relative to the second arm 10 and make a new setting.

Les dimensions des gorges 17 et 18 et celles des deux bras 9 et 10 sont par exemple choisies pour pesrmettre au système de maintenir des récipients ayant une contenance allant de 0.1 L à environ 20 L.The dimensions of the grooves 17 and 18 and those of the two arms 9 and 10 are for example chosen to allow the system to maintain containers having a capacity ranging from 0.1 L to about 20 L.

Le système de maintien 6 peut également comprendre un capteur de sécurité 33 qui est destiné à être connecté au dispositif de pilotage du mélangeur 1, comme représenté sur la figure 3. Ce capteur 33, par exemple basé sur une mesure d'angle, est agencé pour émettre un signal interdisant la mise en route du mélangeur 1 en cas de mauvais serrage du récipient 32 dans le mélangeur 1.The holding system 6 may also comprise a safety sensor 33 which is intended to be connected to the control device of the mixer 1, as represented in FIG. 3. This sensor 33, for example based on an angle measurement, is arranged for issuing a signal prohibiting the start of the mixer 1 in case of improper clamping of the container 32 in the mixer 1.

Claims (15)

  1. Reversible system for holding a container in mixing position in a mixer (1), said system (6) being intended for being fixed to an element of said mixer and comprising a first (9) and second (10) arm, which are mounted so as to be rotatingly mobile about an axis (11) between a position in which the container is inserted between the two arms (9, 10) and a locked position in which the arms (9, 10) surround the container exerting a peripheral tightening force, said system being characterised in that it also comprises a reversible locking lever (12) which is rotatingly mounted about an axis (11), an elastic rotation-limiting device (20) which is fixed by one end to the first arm (9) and by the other end to the lever (12) and a reversible device for locking the relative rotation of the second arm (10) in relation to the lever (12).
  2. System according to claim 1, characterised in that the locking lever (12) comprises a first lug (13) inserted in a groove (17) made in the second arm (10), said groove being arranged such as to allow the relative rotation of the lever (12) in relation to the second arm (10) on a defined course, the locking device comprising a thumbwheel (19) mounted on the first lug (13) which is threaded so as, by screwing and unscrewing, respectively to block and unblock the movement of the first lug (13) in the groove (17).
  3. System according to claim 2, characterised in that the locking lever (12) comprises a second lug (14) on the surface opposite that on which the first lug (13) is placed, said second lug being inserted in a groove (18) provided in the first arm (9) so as to allow the relative rotation of the lever (12) in relation to the first arm (9) following a defined course.
  4. System according to claim 3, characterised in that the first and second lugs (13, 14) are coaxial.
  5. System according to any one of the claims from 1 to 4, characterised in that the elastic restraining device (20) comprises a first cubic element (21) fixed to one face of the first arm (9), said first element comprising a housing (23) in which a second cubic element (23), fixed to one face of the lever (12), is rotatingly mounted, elastic means being arranged in said housing so as to elastically restrain the relative rotation of the second element (23) in the housing (22).
  6. System according to claim 5, characterised in that the elastic means (24) are made up of four flanges of an elastomer material, each of which is arranged between one edge of the first element (21) and one face of the second element (23).
  7. System according to any one of the claims from 1 to 6, characterised in that the arms (9, 10) are equipped with flexible pads (25, 26, 27) which transmit the tightening force to the container (32).
  8. System according to claim 7, characterised in that the first arm (9) comprises one pad (27) and the second arm (10) comprises two pads (25, 26).
  9. System according to claim 7 or 8, characterised in that one pad (25, 26) of the second arm (10) is made up of a strip of elastomer material (29), which is tightly wound around two pins (28) fixed to one face of the arm, said strip projecting radially towards the inside of the arm.
  10. System according to one of the claims from 7 to 9, characterised in that the pad (27) of the first arm (9) is made up of a strip of elastomer material (29), which is tightly wound around two pins (28) fixed to a rotating part (30) mounted on a slug (31) provided on a face of the first arm (9), said strip projecting radially towards the inside of the arm.
  11. System according to any one of the claims from 1 to 10, characterised in that it also comprises a safety sensor (33), which is intended to be connected to the mixer control device (1), said sensor being arranged to emit a signal that prevents the mixer (1) from starting up if the container (32) is not held tightly in the mixer.
  12. Mixer comprising a frame (2) on which a mixing head (4) is mounted, characterised in that it also comprises a reversible system (6) for holding a container opposite the mixing head according to any one of the claims from 1 to 11.
  13. Mixer according to claim 12, characterised in that the frame (2) comprises a column (3) on which the mixing head (4) is slidingly mounted.
  14. Mixer according to claim 13, characterised in that the holding system (6) is slidingly associated with the column (3) by means of a rod (8) of the holding system, said rod being slidingly mounted in a bore of a collar (7) slidingly mounted around the column (3).
  15. Mixer according to any one of the claims from 12 to 14, characterised in that the second arm (10) is mounted rotatingly fixed in relation to the frame (2).
EP04291425A 2003-06-17 2004-06-08 System for elastically holding a container with regard to a mixing head in a mixer Active EP1488848B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307303A FR2856316B1 (en) 2003-06-17 2003-06-17 SYSTEM FOR ELASTICALLY HOLDING A CONTAINER IN RELATION TO A MIXING HEAD OF A MIXER
FR0307303 2003-06-17

Publications (3)

Publication Number Publication Date
EP1488848A2 EP1488848A2 (en) 2004-12-22
EP1488848A3 EP1488848A3 (en) 2005-08-10
EP1488848B1 true EP1488848B1 (en) 2007-08-15

Family

ID=33396792

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04291425A Active EP1488848B1 (en) 2003-06-17 2004-06-08 System for elastically holding a container with regard to a mixing head in a mixer

Country Status (4)

Country Link
EP (1) EP1488848B1 (en)
DE (1) DE602004008152T2 (en)
ES (1) ES2293182T3 (en)
FR (1) FR2856316B1 (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2457539A (en) * 2008-02-19 2009-08-26 M & S Services Clamp for holding mixing vessels
DE102011004433A1 (en) 2011-02-21 2012-08-23 Neuenkirchener Maschinenfabrik Emil Kemper Gmbh Device for processing dough
EP2606957A1 (en) * 2011-12-22 2013-06-26 Sika Technology AG Container holder for a device, device with such a container holder and set with a container holder and / or a device

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH656555A5 (en) * 1981-09-26 1986-07-15 Draiswerke Gmbh DISPERSING MACHINE WITH CONTAINER HOLDING DEVICE.
DE10129130A1 (en) * 2001-06-16 2003-01-09 Wolfcraft Gmbh Clamping or spreading pliers

Also Published As

Publication number Publication date
DE602004008152T2 (en) 2008-05-08
ES2293182T3 (en) 2008-03-16
FR2856316B1 (en) 2005-09-23
EP1488848A2 (en) 2004-12-22
DE602004008152D1 (en) 2007-09-27
EP1488848A3 (en) 2005-08-10
FR2856316A1 (en) 2004-12-24

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