EP1488849B1 - High adjustable Mixer with self blocking mechanism - Google Patents

High adjustable Mixer with self blocking mechanism Download PDF

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Publication number
EP1488849B1
EP1488849B1 EP04291426A EP04291426A EP1488849B1 EP 1488849 B1 EP1488849 B1 EP 1488849B1 EP 04291426 A EP04291426 A EP 04291426A EP 04291426 A EP04291426 A EP 04291426A EP 1488849 B1 EP1488849 B1 EP 1488849B1
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EP
European Patent Office
Prior art keywords
cam
mixer according
button
assembly
cable
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EP04291426A
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German (de)
French (fr)
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EP1488849A2 (en
EP1488849A3 (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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Publication of EP1488849A3 publication Critical patent/EP1488849A3/en
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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

Definitions

  • the invention relates to a mixer comprising a frame provided with a column on which is mounted longitudinally sliding, by means of a rising and falling system, an assembly supporting a mixing head.
  • a mixer comprising a frame provided with a column on which is mounted longitudinally sliding, by means of a rising and falling system, an assembly supporting a mixing head.
  • Such a device is for example disclosed in GB-A-1 145 123.
  • 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 allow the introduction and disengagement of the mixing head into the product to be mixed regardless of the size of the container. It must be possible to adjust the depth of the head in the product to be mixed and to be able to easily clear the container once the mixture is made.
  • the mixers are equipped with a system up and down. Such a system allows the height adjustment of the mixing head relative to the column, and therefore relative to the container.
  • the known up and down systems are complex to achieve because they involve the arrangement of many mechanical parts and are complex to use.
  • the mixing head is generally slidably mounted along the column and this sliding can be prevented by clamping fasteners around the column, the height adjustment function and the locking function of the system are separated .
  • the user if he wants for example to clear a container from the mixer, must loosen the fasteners while supporting the mixing head to prevent it from sliding down the column, then manually adjust the height of the mixer. the mixing head before tightening the fasteners, always keeping the mixing head in the chosen position.
  • the invention aims to overcome these disadvantages by proposing a mixer whose system goes up and down is structurally simple and whose use requires little effort on the part of the user.
  • the system up and down can be operated using a single finger of the user because the height adjustment of the mixing head is assisted and self-locking, thus avoiding having to maintain the mixing head when sliding.
  • the invention relates to a mixer comprising a frame provided with a column on which is mounted longitudinally sliding, by means of a rising and falling system, an assembly supporting a mixing head, said system up and down comprising a actuating button movable between two active positions, respectively a raised position and a lowered position, said button being arranged to actuate a brake via a cam, between a braking position in which the assembly is held stationary, and a free position in which the assembly can slide along the column, said system up and down further comprising a cable fixed on the one hand to the frame and on the other hand to the cam, and a tensioning device in tension of the cable during the relative movement of the assembly relative to the frame, so as to constrain the brake in the braking position when the button is in the inactive position.
  • Figure 1 is a perspective representation of a mixer provided with a system up and down according to the invention.
  • Figure 2 is a schematic partial sectional view of the mixer of Figure 1 illustrating the system goes up and down in a locking position of the height of the mixing head.
  • Figure 3 is a schematic partial sectional view of the mixer of Figure 1 showing the system up and down in a position in which the height of the mixing head can be adjusted upwards.
  • Figure 4 is a schematic partial sectional view of the mixer of Figure 1 showing the system up and down in a position in which the height of the mixing head can be adjusted downward.
  • the terms upper, lower, upper, lower and longitudinal are defined along the axis [Oz] shown in Figure 1 and corresponding to the elevation direction of the mixer.
  • the terms front, rear and lateral are defined along the axis [Ox] shown in Figure 1, the axis [Ox) being perpendicular to the axis [Oz].
  • the transverse term is defined with respect to the axis [Oy) forming a direct trihedron with the axes [Oz] and [Ox] as can be seen in Figure 1.
  • the mixer 1 comprises a frame 2 provided with a column 3 on which is mounted longitudinally sliding, by means of a system up and down 4, an assembly 12 supporting a mixing head 5.
  • the head mixture 5 comprises a shaft rotated by a motor and provided at its end with a mixing tool, a propeller for example.
  • the up and down system 4 comprises an actuating button 6 movable in translation between two active positions, respectively a raised position, shown in FIG. 3, and a lowered position, represented in FIG. 4.
  • the button 6 is placed in these positions. positions by upward actuation for the upward and downward position for the downward position by a user's finger. Without actuation of the user, the button 6 is in the inactive position, as represented in FIG.
  • the button 6 is integral in translation with a roller 7 which is arranged in a groove 8 provided in a cam 9.
  • the cam 9 is rotatably mounted about a transverse axis 10 disposed near the center of said cam.
  • the groove 8 is disposed near the lower front end of the cam 9 and comprises two ramps 11 of substantially opposite slopes. These ramps 11 form a concavity facing the roller 7.
  • the rising and falling system 4 further comprises guide rollers 13, 14 and 15 of the translation of the assembly 12 on the column 3.
  • the system 4 comprises three rollers, one of which is arranged opposite the cam 9 and the other two 14 and 15 are arranged on the other side of the column 3 on either side of the longitudinal position of the first roller.
  • the rollers 13, 14 and 15 are mounted in rotation against the column 3 and engage in longitudinal grooves provided on the column 3.
  • the rollers 13, 14 and 15 comprise grooves in which respectively engage projecting edges of the column.
  • a brake 16 is associated with the rear face of the cam 9, above the axis of rotation 10 thereof. It is thus understood that a rotation of the cam 9, triggered by actuation of the button 6, causes the brake 16 to move.
  • the brake moves between a braking position, in which a pad 17 of the brake bears on the roller 13 so to prevent the translation of the assembly 12 and to keep it stationary, as shown in FIG. 2, and a free position in which the shoe 17 is moved away from the roller 13 so that the assembly 12 can slide along the column 3 when the button is in one of its active positions, as shown in Figures 3 and 4.
  • a cable 18 is fixed on the one hand in the vicinity of the rear upper end of the cam 9 and on the other hand to the frame 2 in the vicinity of the upper end of the column 3. This cable 18 is provided to cooperate with a cable tensioning device 19.
  • the device for tensioning the cable 19 comprises a telescopic means formed for example by a jack 20 whose body 21 is associated with the frame 2. More particularly, the jack 20 can be arranged in the upper part of the column 3, its rod telescopic 22 extending substantially vertically downward. As will be seen below, the jack 20 forms a telescopic means for adjusting the conformation of the cable 18 to the position of the assembly 12.
  • the tensioning device of the cable 19 further comprises return pulleys 23, 24 and 25.
  • return pulleys 23, 24 and 25 In the embodiment shown in the figures, three return pulleys are provided.
  • a pulley 23 is provided in the vicinity of the rear upper end of the cam 9
  • another pulley 24 is provided near the upper end of the column 3 near and in front of the upper end of the jack 20 and the pulley 25 is provided at the end of the rod 22.
  • the cable 18 is fixed to the cam 9 and passes successively in the pulley 23, in the pulley 24 and in the pulley 25.
  • the cable 18 is then fixed to the frame 2 in the vicinity of the upper end of the column 3, close and behind the upper end of the jack 20.
  • the jack 20 is arranged to provide a damping force to the sliding down of the assembly 12, by retraction of the rod 22.
  • the brake 16 When the brake 16 is in the free position, as shown in Figure 4, and that the user down the assembly 12 through the weight thereof, the elongation of the cable 18 between the pulley 23 and the pulley 24 causes the retraction of the rod 22 in the body 21. This retraction has the effect of absorbing energy.
  • the assembly 12 is slowed during the descent and does not come down suddenly, which avoids having to maintain the assembly 12 while it is down.
  • the assembly of the assembly 12 along the column 3 is assisted by the cable 18 and the cable tension device 19.
  • the rise of the assembly 12 triggers the expansion of the rod 22 which restores energy assisting the rise of the assembly 12 and the cable 18 remaining still tensioned.
  • the jack 20 is thus arranged to provide an assist force to the upward sliding of the assembly 12 along the column 3.
  • the rise of the assembly 12 requires little effort on the part of the user. Indeed, it can use only the finger allowing it to operate the button 6 in its positon up to raise the assembly 12.
  • the telescopic means formed by the jack 20 exerts a sliding control force. That is to say, it assists the effort of the user as well for the rise as for the descent of the assembly 12, on the one hand avoiding the user significant efforts and on the other hand, avoiding that the assembly 12 does not come down suddenly because of its weight.
  • the cable 18 and the tension-tensioning device of the cable 19 also make it possible to make the system go up and down 4.
  • the cable 18 is associated with the cam 9 so that the setting in active position of the button 6 causes by the rotation of the cam 9, a forward tension on the cable 12 by leverage. It is also known that this setting in the active position of the button causes the brake 16 to come out of its braking position, as shown in FIG.
  • the pulley 23 is in fact arranged so that the cable exerts a substantially lateral force on the cam being situated in the vicinity of the rear upper end of the cam 9.
  • the mixer described here is simple construction and use since it requires only one finger of the user to be operated.

Description

L'invention concerne un mélangeur comprenant un bâti pourvu d'une colonne sur laquelle est montée coulissant longitudinalement, au moyen d'un système monte et baisse, un ensemble supportant une tête de mélange. Un tel dispositif est par exemple exposé dans le document GB-A-1 145 123.The invention relates to a mixer comprising a frame provided with a column on which is mounted longitudinally sliding, by means of a rising and falling system, an assembly supporting a mixing head. Such a device is for example disclosed in GB-A-1 145 123.

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 permettre l'introduction et le dégagement de la tête de mélange dans le produit à mélanger quelle que soit la taille du récipient. On doit pouvoir régler la profondeur de la tête dans le produit à mélanger et pouvoir dégager aisément le récipient une fois le mélange réalisé.Such mixers must allow the introduction and disengagement of the mixing head into the product to be mixed regardless of the size of the container. It must be possible to adjust the depth of the head in the product to be mixed and to be able to easily clear the container once the mixture is made.

Pour ce faire, les mélangeurs sont équipés d'un système monte et baisse. Un tel système permet le réglage en hauteur de la tête de mélange par rapport à la colonne, et donc par rapport au récipient.To do this, the mixers are equipped with a system up and down. Such a system allows the height adjustment of the mixing head relative to the column, and therefore relative to the container.

Les systèmes monte et baisse connus sont complexes à réaliser car ils impliquent l'agencement de nombreuses pièces mécaniques et sont complexes d'utilisation.The known up and down systems are complex to achieve because they involve the arrangement of many mechanical parts and are complex to use.

En effet, la tête de mélange est généralement montée coulissante le long de la colonne et ce coulissement peut être empêché par serrage d'organes de fixation autour de la colonne, la fonction de réglage en hauteur et la fonction de blocage du système sont donc séparées. L'utilisateur, s'il veut par exemple dégager un récipient du mélangeur, doit desserrer les organes de fixation tout en soutenant la tête de mélange pour éviter qu'elle ne coulisse jusqu'en bas de la colonne, puis régler manuellement la hauteur de la tête de mélange avant de resserrer les organes de fixation, toujours en maintenant la tête de mélange dans la position choisie.Indeed, the mixing head is generally slidably mounted along the column and this sliding can be prevented by clamping fasteners around the column, the height adjustment function and the locking function of the system are separated . The user, if he wants for example to clear a container from the mixer, must loosen the fasteners while supporting the mixing head to prevent it from sliding down the column, then manually adjust the height of the mixer. the mixing head before tightening the fasteners, always keeping the mixing head in the chosen position.

L'invention a pour objet de palier ces inconvénients en proposant un mélangeur dont le système monte et baisse est structurellement simple et dont l'utilisation ne nécessite que peu d'efforts de la part de l'utilisateur. En particulier, le système monte et baisse peut être actionné à l'aide d'un seul doigt de l'utilisateur car le réglage en hauteur de la tête de mélange est assisté et autobloquant, évitant ainsi d'avoir à maintenir la tête de mélange lors de son coulissement.The invention aims to overcome these disadvantages by proposing a mixer whose system goes up and down is structurally simple and whose use requires little effort on the part of the user. In particular, the system up and down can be operated using a single finger of the user because the height adjustment of the mixing head is assisted and self-locking, thus avoiding having to maintain the mixing head when sliding.

A cet effet, l'invention concerne un mélangeur comprenant un bâti pourvu d'une colonne sur laquelle est montée coulissant longitudinalement, au moyen d'un système monte et baisse, un ensemble supportant une tête de mélange, ledit système monte et baisse comprenant un bouton d'actionnement mobile entre deux positions actives, respectivement une position monte et une position baisse, ledit bouton étant agencé pour actionner un frein par l'intermédiaire d'une came, entre une position de freinage dans laquelle l'ensemble est maintenu immobile, et une position libre dans laquelle l'ensemble peut coulisser le long de la colonne, ledit système monte et baisse comprenant en outre un câble fixé d'une part au bâti et d'autre part à la came, et un dispositif de contrainte en tension du câble lors du mouvement relatif de l'ensemble par rapport au bâti, de sorte à contraindre le frein en position de freinage lorsque le bouton est en position inactive.To this end, the invention relates to a mixer comprising a frame provided with a column on which is mounted longitudinally sliding, by means of a rising and falling system, an assembly supporting a mixing head, said system up and down comprising a actuating button movable between two active positions, respectively a raised position and a lowered position, said button being arranged to actuate a brake via a cam, between a braking position in which the assembly is held stationary, and a free position in which the assembly can slide along the column, said system up and down further comprising a cable fixed on the one hand to the frame and on the other hand to the cam, and a tensioning device in tension of the cable during the relative movement of the assembly relative to the frame, so as to constrain the brake in the braking position when the button is in the inactive position.

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 en perspective d'un mélangeur pourvu d'un système monte et baisse selon l'invention.Figure 1 is a perspective representation of a mixer provided with a system up and down according to the invention.

La figure 2 est une vue schématique en coupe partielle du mélangeur de la figure 1 illustrant le système monte et baisse dans une position de blocage de la hauteur de la tête de mélange.Figure 2 is a schematic partial sectional view of the mixer of Figure 1 illustrating the system goes up and down in a locking position of the height of the mixing head.

La figure 3 est une vue schématique en coupe partielle du mélangeur de la figure 1 illustrant le système monte et baisse dans une position dans laquelle la hauteur de la tête de mélange peut être réglée vers le haut.Figure 3 is a schematic partial sectional view of the mixer of Figure 1 showing the system up and down in a position in which the height of the mixing head can be adjusted upwards.

La figure 4 est une vue schématique en coupe partielle du mélangeur de la figure 1 illustrant le système monte et baisse dans une position dans laquelle la hauteur de la tête de mélange peut être réglée vers le bas.Figure 4 is a schematic partial sectional view of the mixer of Figure 1 showing the system up and down in a position in which the height of the mixing head can be adjusted downward.

Dans la description qui suit, les termes supérieur, inférieur, haut, bas et longitudinal sont définis selon l'axe [Oz) représenté sur la figure 1 et correspondant à la direction d'élévation du mélangeur. Les termes avant, arrière et latéral sont définis selon l'axe [Ox) représenté sur la figure 1, l'axe [Ox) étant perpendiculaire à l'axe [Oz). Le terme transversal est défini par rapport à l'axe [Oy) formant un trièdre direct avec les axes [Oz) et [Ox) comme on peut le voir figure 1.In the following description, the terms upper, lower, upper, lower and longitudinal are defined along the axis [Oz] shown in Figure 1 and corresponding to the elevation direction of the mixer. The terms front, rear and lateral are defined along the axis [Ox] shown in Figure 1, the axis [Ox) being perpendicular to the axis [Oz]. The transverse term is defined with respect to the axis [Oy) forming a direct trihedron with the axes [Oz] and [Ox] as can be seen in Figure 1.

En référence à la figure 1, le mélangeur 1 comprend un bâti 2 pourvu d'une colonne 3 sur laquelle est montée coulissant longitudinalement, au moyen d'un système monte et baisse 4, un ensemble 12 supportant une tête de mélange 5. La tête de mélange 5 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, by means of a system up and down 4, an assembly 12 supporting a mixing head 5. The head mixture 5 comprises a shaft rotated by a motor and provided at its end with a mixing tool, a propeller for example.

Le système monte et baisse 4 comprend un bouton d'actionnement 6 mobile en translation entre deux positions actives, respectivement une position monte, représentée sur la figure 3, et une position baisse, représentée sur la figure 4. Le bouton 6 est mis dans ces positions par actionnement vers le haut pour la position monte et vers le bas pour la position baisse par une doigt de l'utilisateur. Sans actionnement de l'utilisateur, le bouton 6 se trouve en position inactive, comme représenté sur la figure 2.The up and down system 4 comprises an actuating button 6 movable in translation between two active positions, respectively a raised position, shown in FIG. 3, and a lowered position, represented in FIG. 4. The button 6 is placed in these positions. positions by upward actuation for the upward and downward position for the downward position by a user's finger. Without actuation of the user, the button 6 is in the inactive position, as represented in FIG.

Le bouton 6 est solidaire en translation d'un galet 7 qui est disposé dans une gorge 8 prévue dans une came 9. La came 9 est montée en rotation autour d'un axe transversal 10 disposé au voisinage du centre de ladite came.The button 6 is integral in translation with a roller 7 which is arranged in a groove 8 provided in a cam 9. The cam 9 is rotatably mounted about a transverse axis 10 disposed near the center of said cam.

La gorge 8 est disposée au voisinage de l'extrémité inférieure avant de la came 9 et comprend deux rampes 11 de pentes sensiblement opposées. Ces rampes 11 forment une concavité tournée vers le galet 7.The groove 8 is disposed near the lower front end of the cam 9 and comprises two ramps 11 of substantially opposite slopes. These ramps 11 form a concavity facing the roller 7.

Ainsi, lors de l'actionnement du bouton 6 vers sa position monte ou sa position baisse, le galet 7 se déplace et prend appui contre la gorge 8 sur l'une des deux rampes 11. Ceci a pour effet d'entraîner la rotation de la came 9. Cette rotation n'est possible que dans un seul sens du fait des pentes opposées des rampes 11, comme représenté sur les figures 3 et 4. Selon l'agencement représenté sur les figures, la rotation de la partie supérieure de la came 9 se fait vers l'avant. L'appui du galet 7 contre la gorge 8 permet donc de transformer un mouvement de translation longitudinale du bouton 6 en mouvement de rotation de la came 9.Thus, when the button 6 is actuated to its upright position or its lowered position, the roller 7 moves and bears against the groove 8 on one of the two ramps 11. This has the effect of causing the rotation of the cam 9. This rotation is only possible in one direction because of the opposite slopes of the ramps 11, as shown in Figures 3 and 4. According to the arrangement shown in the figures, the rotation of the upper part of the cam 9 is forward. The support of the roller 7 against the groove 8 thus makes it possible to transform a longitudinal translational movement of the knob 6 into a rotational movement of the cam 9.

On peut envisager de ne prévoir qu'une seule rampe dans la gorge 8, le bouton n'ayant alors qu'une position active dans laquelle l'utilisateur peut faire monter ou descendre la tête de mélange. Par ailleurs, on peut également prévoir un bouton d'actionnement mobile en rotation.It is conceivable to provide only one ramp in the groove 8, the button then having an active position in which the user can move up or down the mixing head. Moreover, it is also possible to provide an actuating button that is mobile in rotation.

Le système monte et baisse 4 comprend en outre des galets de guidage 13, 14 et 15 de la translation de l'ensemble 12 sur la colonne 3. Dans le mode de réalisation représenté sur les figures, le système 4 comprend trois galets dont un 13 est disposé en regard de la came 9 et les deux autres 14 et 15 sont disposés de l'autre coté de la colonne 3 de part et d'autre de la position longitudinale du premier galet. Les galets 13, 14 et 15 sont montés en rotation contre la colonne 3 et s'engagent dans des gorges longitudinales prévues sur la colonne 3.The rising and falling system 4 further comprises guide rollers 13, 14 and 15 of the translation of the assembly 12 on the column 3. In the embodiment shown in the figures, the system 4 comprises three rollers, one of which is arranged opposite the cam 9 and the other two 14 and 15 are arranged on the other side of the column 3 on either side of the longitudinal position of the first roller. The rollers 13, 14 and 15 are mounted in rotation against the column 3 and engage in longitudinal grooves provided on the column 3.

Selon une autre réalisation non représentée, les galets 13, 14 et 15 comprennent des gorges dans lesquels s'engagent respectivement des bords saillants de la colonne.According to another embodiment not shown, the rollers 13, 14 and 15 comprise grooves in which respectively engage projecting edges of the column.

Un frein 16 est associé à la face arrière de la came 9, au dessus de l'axe de rotation 10 de celle-ci. On comprend donc qu'une rotation de la came 9, déclenchée par actionnement du bouton 6, entraîne le déplacement du frein 16. Le frein se déplace entre une position de freinage, dans laquelle un patin 17 du frein appui sur le galet 13 de sorte à empêcher la translation de l'ensemble 12 et à le maintenir immobile, comme cela est représenté sur la figure 2, et une position libre dans laquelle le patin 17 est éloigné du galet 13 de sorte que l'ensemble 12 peut coulisser le long de la colonne 3 lorsque le bouton est dans une de ses positions actives, comme cela est représenté sur les figures 3 et 4.A brake 16 is associated with the rear face of the cam 9, above the axis of rotation 10 thereof. It is thus understood that a rotation of the cam 9, triggered by actuation of the button 6, causes the brake 16 to move. The brake moves between a braking position, in which a pad 17 of the brake bears on the roller 13 so to prevent the translation of the assembly 12 and to keep it stationary, as shown in FIG. 2, and a free position in which the shoe 17 is moved away from the roller 13 so that the assembly 12 can slide along the column 3 when the button is in one of its active positions, as shown in Figures 3 and 4.

Un câble 18 est fixé d'une part au voisinage de l'extrémité supérieure arrière de la came 9 et d'autre part au bâti 2 au voisinage de l'extrémité supérieure de la colonne 3. Ce câble 18 est prévu pour coopérer avec un dispositif de contrainte en tension du câble 19.A cable 18 is fixed on the one hand in the vicinity of the rear upper end of the cam 9 and on the other hand to the frame 2 in the vicinity of the upper end of the column 3. This cable 18 is provided to cooperate with a cable tensioning device 19.

Le dispositif de contrainte en tension du câble 19 comprend un moyen télescopique formé par exemple par un vérin 20 dont le corps 21 est associé au bâti 2. Plus particulièrement, le vérin 20 peut être agencé dans la partie supérieure de la colonne 3, sa tige télescopique 22 se déployant sensiblement verticalement vers le bas. Comme nous le verrons ci-dessous, le vérin 20 forme un moyen télescopique d'ajustement de la conformation du câble 18 à la position de l'ensemble 12.The device for tensioning the cable 19 comprises a telescopic means formed for example by a jack 20 whose body 21 is associated with the frame 2. More particularly, the jack 20 can be arranged in the upper part of the column 3, its rod telescopic 22 extending substantially vertically downward. As will be seen below, the jack 20 forms a telescopic means for adjusting the conformation of the cable 18 to the position of the assembly 12.

Le dispositif de contrainte en tension du câble 19 comprend en outre des poulies de renvoi 23, 24 et 25. Dans la réalisation représentée sur les figures, trois poulies de renvoi sont prévues. Une poulie 23 est prévue au voisinage de l'extrémité supérieure arrière de la came 9, une autre poulie 24 est prévue au voisinage de l'extrémité supérieure de la colonne 3 à proximité et en avant de l'extrémité supérieure du vérin 20 et la poulie 25 est prévue à l'extrémité de la tige 22.The tensioning device of the cable 19 further comprises return pulleys 23, 24 and 25. In the embodiment shown in the figures, three return pulleys are provided. A pulley 23 is provided in the vicinity of the rear upper end of the cam 9, another pulley 24 is provided near the upper end of the column 3 near and in front of the upper end of the jack 20 and the pulley 25 is provided at the end of the rod 22.

Le câble 18 est fixé à la came 9 puis passe successivement dans la poulie 23, dans la poulie 24 puis dans la poulie 25. Le câble 18 est ensuite fixé au bâti 2 au voisinage de l'extrémité supérieure de la colonne 3, à proximité et en arrière de l'extrémité supérieure du vérin 20.The cable 18 is fixed to the cam 9 and passes successively in the pulley 23, in the pulley 24 and in the pulley 25. The cable 18 is then fixed to the frame 2 in the vicinity of the upper end of the column 3, close and behind the upper end of the jack 20.

Le vérin 20 est agencé pour fournir un effort d'amortissement au coulissement vers le bas de l'ensemble 12, par rétraction de la tige 22. Lorsque le frein 16 est en position libre, comme représenté sur la figure 4, et que l'utilisateur fait descendre l'ensemble 12 grâce au poids de celui-ci, l'allongement du câble 18 entre la poulie 23 et la poulie 24 provoque la rétraction de la tige 22 dans le corps 21. Cette rétraction a pour effet d'absorber de l'énergie. Ainsi, l'ensemble 12 est ralenti pendant la descente et ne descend pas brutalement, ce qui évite d'avoir à maintenir l'ensemble 12 pendant qu'on le fait descendre.The jack 20 is arranged to provide a damping force to the sliding down of the assembly 12, by retraction of the rod 22. When the brake 16 is in the free position, as shown in Figure 4, and that the user down the assembly 12 through the weight thereof, the elongation of the cable 18 between the pulley 23 and the pulley 24 causes the retraction of the rod 22 in the body 21. This retraction has the effect of absorbing energy. Thus, the assembly 12 is slowed during the descent and does not come down suddenly, which avoids having to maintain the assembly 12 while it is down.

De même, lorsque le frein 16 est en position libre comme sur la figure 3, la montée de l'ensemble 12 le long de la colonne 3 est assistée par le câble 18 et le dispositif de contrainte en tension du câble 19. En effet, la montée de l'ensemble 12 déclenche l'expansion de la tige 22 qui restitue de l'énergie assistant la montée de l'ensemble 12 et le câble 18 restant toujours tendu. Le vérin 20 est donc agencé pour fournir un effort d'assistance au coulissement vers le haut de l'ensemble 12 le long de la colonne 3. Ainsi, la montée de l'ensemble 12 ne nécessite que peu d'effort de la part de l'utilisateur. En effet, celui-ci peut n'utiliser que le doigt lui permettant d'actionner le bouton 6 dans sa positon monte pour faire monter l'ensemble 12.Similarly, when the brake 16 is in the free position as in Figure 3, the assembly of the assembly 12 along the column 3 is assisted by the cable 18 and the cable tension device 19. In effect, the rise of the assembly 12 triggers the expansion of the rod 22 which restores energy assisting the rise of the assembly 12 and the cable 18 remaining still tensioned. The jack 20 is thus arranged to provide an assist force to the upward sliding of the assembly 12 along the column 3. Thus, the rise of the assembly 12 requires little effort on the part of the user. Indeed, it can use only the finger allowing it to operate the button 6 in its positon up to raise the assembly 12.

On comprend donc que le moyen télescopique formé par le vérin 20 exerce un effort de régulation du coulissement. C'est à dire qu'il assiste l'effort de l'utilisateur aussi bien pour la montée que pour la descente de l'ensemble 12, d'une part en évitant à l'utilisateur des efforts importants et d'autre part, en évitant que l'ensemble 12 ne descende brutalement du fait de son poids.It is therefore understood that the telescopic means formed by the jack 20 exerts a sliding control force. That is to say, it assists the effort of the user as well for the rise as for the descent of the assembly 12, on the one hand avoiding the user significant efforts and on the other hand, avoiding that the assembly 12 does not come down suddenly because of its weight.

Le câble 18 et le dispositif de contrainte en tension du câble 19 permettent également de rendre autobloquant le système monte et baisse 4. En effet, le câble 18 est associé à la came 9 de telle sorte que la mise en position active du bouton 6 provoque, par la rotation de la came 9, une tension vers l'avant sur le câble 12 par effet de levier. On sait également que cette mise en position active du bouton fait sortir le frein 16 de sa position de freinage, comme cela est représenté sur la figure 3.The cable 18 and the tension-tensioning device of the cable 19 also make it possible to make the system go up and down 4. In fact, the cable 18 is associated with the cam 9 so that the setting in active position of the button 6 causes by the rotation of the cam 9, a forward tension on the cable 12 by leverage. It is also known that this setting in the active position of the button causes the brake 16 to come out of its braking position, as shown in FIG.

Lorsqu'on relâche le bouton 6, l'effort vers l'avant exercé sur le câble disparaît et le câble 18 tire sur la came vers l'arrière sous l'effet du dispositif de contrainte en tension du câble. La poulie 23 est en effet agencée de sorte que le câble exerce un effort essentiellement latéral sur la came en étant située au voisinage de l'extrémité supérieure arrière de la came 9.When the button 6 is released, the forward force exerted on the cable disappears and the cable 18 pulls the cam backward under the effect of the tension device of the cable. The pulley 23 is in fact arranged so that the cable exerts a substantially lateral force on the cam being situated in the vicinity of the rear upper end of the cam 9.

Le déplacement de la came vers l'arrière provoque le retour du frein 16 dans sa position de freinage dans laquelle le patin 17 appui sur le galet de guidage 13, empêchant ainsi le coulissement de l'ensemble 12 sur la colonne 3, comme représenté sur la figure 2. Ainsi le système monte et baisse est autobloquant. Ainsi dès que le bouton 6 est en position inactive, le câble 18 et le dispositif de contrainte en tension du câble 19 contraignent le frein en position de freinage.The displacement of the cam towards the rear causes the return of the brake 16 in its braking position in which the shoe 17 bears on the guide roller 13, thus preventing the sliding of the assembly 12 on the column 3, as shown on Figure 2. Thus the system goes up and down is self-locking. Thus, as soon as the button 6 is in the inactive position, the cable 18 and the cable tensioning device 19 force the brake into the braking position.

Le mélangeur décrit ici est donc simple de construction et d'utilisation puisqu'il ne nécessite qu'un seul doigt de l'utilisateur pour être actionné.The mixer described here is simple construction and use since it requires only one finger of the user to be operated.

Claims (12)

  1. Mixer comprising a frame (2) equipped with a column (3) on which an assembly (12) supporting a mixing head (5) is installed so as to slide longitudinally, by means of a rise and fall system (4), characterised in that said rise and fall system comprises an activation button (6) which is mobile between two active positions, respectively a high position and a low position, said button being arranged such as to activate a brake (16) by means of a cam (9), between a braking position in which the assembly (12) is held immobile and a free position in which said assembly (12) can slide along the column (3), said rise and fall system also comprising a cable (18) fixed by one end to the frame (2) and by the other end to the cam (9), and a device for holding the cable taut (19) during the relative movement of the assembly (12) in relation to the frame (2), such as to hold the brake (16) in braking position when the button (6) is in inactive position.
  2. Mixer according to claim 1, characterised in that the cam (9) is mounted so as to rotate around a transverse axle (10) and in that the button (6) is solidly attached in translation to a roller (7) which is arranged in a groove (8) made in said cam so that the roller (7) resting against said groove (8) transforms the longitudinal translation movement of the button (6) into a rotation movement of the cam (9).
  3. Mixer according to claim 2, characterised in that the groove (8) comprises two longitudinal ramps (11) with slopes that are substantially opposite to each other, so that a longitudinal translation movement of the button (6) upwards or downwards drives the groove (7) to rest respectively against either one of the ramps (11) in order to transform the longitudinal translation movements of the button (6) into a rotation movement of the cam (9) in a single direction.
  4. Mixer according to claim 2 or 3, characterised in that the axle of rotation (10) of the cam (9) is located approximately at the centre of said cam, the groove (8) being made approximately at bottom front end of said cam and the cable (18) being fixed approximately at the top rear end of said cam.
  5. Mixer according to claim 4, characterised in that the brake (16) is associated with the rear face of the cam (9) above the axle of rotation (10).
  6. Mixer according to any one of the claims from 1 to 5, characterised in that the rise and fall system (4) also comprises rollers (13, 14, 15) for guiding the translation movement of the assembly (12) on the column (3), the brake (16) comprising a brake shoe (17) which, in braking position, rests against one of the rollers (13) so as to prevent the translation movement.
  7. Mixer according to claim 6, characterised in that three guiding rollers (13, 14, 15) are provided, a first roller (13) placed opposite the cam (9), on which the brake shoe (17) acts, and two rollers (14, 15) placed on the other side of the column (3) on either side of the longitudinal position of the first roller (13), said rollers being mounted so as to rotate against the column (3).
  8. Mixer according to any one of the claims from 1 to 7, characterised in that the device for holding the cable taut (19) comprises guide pulleys (23, 24, 25) and a telescopic device for adjusting the shape of the cable to the position of the assembly (12).
  9. Mixer according to claim 8, characterised in that a guide pulley (23) is placed approximately at the top rear end of the cam (9) in order for the cable (18) to exert an essentially lateral stress on the cam (9).
  10. Mixer according to claim 8 or 9, characterised in that the telescopic device exerts a stress that regulates the sliding in at least one direction.
  11. Mixer according to claim 10, characterised in that the telescopic device consists of a screwjack (20) in which the body (21) is attached to the frame (2) and in which the end of the shaft (22) is provided with a guide pulley (25).
  12. Mixer according to claim 11, characterised in that the screwjack (20) is designed, by the extension of the shaft (22), to provide a force to assist the upward sliding and, by the retraction of the shaft (22), to provide a force to dampen the downward sliding.
EP04291426A 2003-06-17 2004-06-08 High adjustable Mixer with self blocking mechanism Active EP1488849B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FR0307302 2003-06-17
FR0307302A FR2856315B1 (en) 2003-06-17 2003-06-17 MIXER COMPRISING A SELF-LOCKING MONITOR AND FALL SYSTEM

Publications (3)

Publication Number Publication Date
EP1488849A2 EP1488849A2 (en) 2004-12-22
EP1488849A3 EP1488849A3 (en) 2005-08-24
EP1488849B1 true EP1488849B1 (en) 2006-08-09

Family

ID=33396791

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04291426A Active EP1488849B1 (en) 2003-06-17 2004-06-08 High adjustable Mixer with self blocking mechanism

Country Status (4)

Country Link
EP (1) EP1488849B1 (en)
DE (1) DE602004001810T2 (en)
ES (1) ES2270308T3 (en)
FR (1) FR2856315B1 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112371003A (en) * 2020-11-11 2021-02-19 周才明 Vibration stirring device for disinfection
CN112473436A (en) * 2020-12-24 2021-03-12 浙江立盛新型墙体材料有限公司 Environment-friendly water based paint apparatus for producing

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB551488A (en) * 1941-08-22 1943-02-24 Robert Duncan Marsh A stirring machine more particularly for beating liquid glue into foam
GB986879A (en) * 1964-03-06 1965-03-24 Otto Waldrich Weight compensation device and machine tool using the same
GB890355A (en) * 1960-12-16 1962-02-28 Polymar Sursee Ag Improvements in or relating to mixing and kneading machines for pastes and powders
GB1145123A (en) * 1965-08-09 1969-03-12 R W Hunter Machinery Ltd Improvements in or relating to mixing apparatus
FR2718198B1 (en) * 1994-03-30 1996-06-14 Mgop D Addario Sarl Mechanical quick release device.

Also Published As

Publication number Publication date
DE602004001810T2 (en) 2007-02-22
DE602004001810D1 (en) 2006-09-21
FR2856315A1 (en) 2004-12-24
ES2270308T3 (en) 2007-04-01
EP1488849A2 (en) 2004-12-22
EP1488849A3 (en) 2005-08-24
FR2856315B1 (en) 2005-09-23

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