Classifications

• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
  • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
  • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
  • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
  • A47J43/0716—Parts or details, e.g. mixing tools, whipping tools for machines with tools driven from the lower side
• • A—HUMAN NECESSITIES
  • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
  • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
  • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
  • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
  • A47J43/07—Parts or details, e.g. mixing tools, whipping tools
  • A47J43/075—Safety devices
  • A47J43/0761—Safety devices for machines with tools driven from the lower side
  • A47J43/0766—Safety devices for machines with tools driven from the lower side activated by the proper positioning of the mixing bowl

Definitions

• the present invention relates to the general technical field of electrical household appliances for culinary preparation comprising a motor housing and a working receptacle designed to engage vertically on the motor housing, without locking the receptacle on the base by a rotational movement, and concerns more particularly an apparatus comprising a safety control carried by the housing preventing operation of the engine when the container is not properly mounted on the removable base.
• a food preparation apparatus comprising a motor housing on which can engage a working container by a simple translational movement, the apparatus comprising a safety control preventing the motor operation when the container is not placed on the base of the motor housing.
• the safety control is actuated by a finger carried by the container so that the device can not operate in the absence of the latter.
• Such a safety control is usually provided with a return spring ensuring the return of the safety control in a rest position preventing operation of the engine when the container is removed from the motor housing.
• the thrust of the return spring of the safety control tends to slightly lift the container if the weight of the latter is insufficient, especially when the container is lightly filled and is made of plastic, causing positioning of the container bias on the base. In this case, the stability of the container is degraded and the container may vibrate during operation of the engine generating an unpleasant noise.
• an object of the present invention is to propose a device household appliances for culinary preparation overcoming these disadvantages and which maintains a great ergonomics of use by allowing the introduction and removal of the container on the base of the motor housing by a simple translational movement.
• the invention relates to an electrical household appliance for culinary preparation
• a motor housing provided with a base for receiving a working receptacle
• the working receptacle comprising a casing surmounting a base supporting a rotary tool for be rotated by the motor housing, the base being adapted to be engaged on the receiving base by a simple translational movement
• the motor housing comprising a safety control which is returned to a rest position by means of return and which is moved to an active position by an actuator element carried by the working container
• the base or the container comprises resilient locking means respectively cooperating with the container or the base to generate a sufficient blocking force to axially immobilize the container on the base against the force generated by the s means of recall of the security command.
• An apparatus comprising locking means in which the elastic deformation of a part allows the container to be fully engaged on the base when the user applies a simple vertical push on the container, and then ensures the immobilization of the container in this case. position when the user releases pressure on the container.
• the elastic locking means are provided to unlock automatically when the force exerted on the latter during the lifting of the working receptacle exceeds a predetermined threshold.
• Such a feature allows to remove the working container from the motor housing by a simple pull on the container.
• the effort from which the means The locking device is unlocked automatically is greater than the force exerted by the return means of the safety control and is lower than the weight of the motor housing.
• the locking means are constituted by one or more resilient tongues having a boss engaging in a cavity adapted to ensure the immobilization of the container on the base of the motor housing.
• the locking means consist of two elastic tabs arranged at 180 ° to one another.
• the resilient tongues are carried by the base and are engaged in openings carried by tabs projecting inside the base.
• the resilient tongues are carried by a support piece which is attached to the motor housing.
• the container is designed to be arranged on the receiving base in one or more predetermined angular positions.
• Such a characteristic makes it possible to offer ergonomics of use suitable for left-handed and right-handed people by allowing several positions of the container.
• FIG. 1 is a perspective view of a food preparation apparatus according to a particular embodiment of the invention, the container being uncoupled from the motor housing;
• FIG. 2 is a perspective view from below of the container of the figure 1 ;
• Figure 3 is a top view of the food preparation apparatus of Figure 1, the container being coupled to the motor housing;
• Figure 4 is a sectional view along the line IV-IV of Figure 3;
• FIG. 5 is a detailed view of the device for immobilizing the container;
• Figures 6 and 7 are enlarged perspective views of an elastic tongue ensuring the locking of the container on the motor housing;
• Figure 8 is a perspective view of an alternative embodiment of the elastic tongue.
• FIG. 1 illustrates an electrical household appliance for culinary preparation according to the invention comprising a motor housing 1, a working receptacle 2 intended to be put in place on the motor housing 1 according to several angular positions and a cover 3 provided for closing the receptacle of work 2.
• the working receptacle 2 is preferably made of plastic, by a molding method, and comprises an envelope 20 defining the useful volume of the container 2 and a base 21 typically supporting a working tool 4 intended to be rotated by an engine 15 integrated in the motor housing 1, the work tool 4 and the motor 15 being shown only in Figure 4.
• the motor housing 1 comprises a series of control buttons 10 for selecting different rotational speeds of the motor 15.
• the motor housing 1 also comprises a base 11 for receiving the base 21 of the container having two reliefs centering 110 on which the base 21 can be vertically engaged in four angular positions offset relative to each other by 90 °.
• the center of the receiving base 11 comprises a rotary driver 12 on which is engaged a sleeve 40, visible in Figure 2, integral with the working tool 4.
• the receiving base 11 also comprises a guide stud 13 disposed on the edge of one of the centering reliefs 110 so that, between the guide pin 13 and the centering relief 110, a slot giving access to a space receiving a safety control 5, shown in dotted line in FIG. 1.
• the safety control 5 can move vertically inside the motor housing 1 and is brought back to a high position by a spring 6, represented in dotted line on Figure 1.
• This safety control 5 comprises a profile 50 cooperating with a switch 7 arranged on the motor supply circuit to close the latter when the safety control 5 is moved downwardly against the spring 6, the switch 7 being , conversely, open when the safety control 5 is in the high position, illustrated in Figure 1, thus preventing the startup of the motor 15 if the user actuates one of the control buttons 10.
• the base 21 of the container forms an outer skirt surrounding the bushing 40 and has four operating tabs 22 distributed at 90 ° to each other, these four tabs 22 extending inside the volume of the skirt forming the base 21 so that one of them comes push the safety control 5 against the spring 6 when the container 2 is placed on the base 11.
• the receiving base 11 comprises resilient locking means cooperating with the base 21 to immobilize the latter in the recessed position on the base and counter the force generated by the spring 6 of the order reminder 7 to lift the container 2.
• the locking means are advantageously constituted by two elastic tongues 8 arranged symmetrically with respect to one another and provided with a boss 80 cooperating with an opening 220 formed on the tabs 22 to hold the base 21 in the depressed position on the receiving base 11.
• the dimensions of the openings 220 are a few millimeters larger than the dimensions of the bosses 80 so that a slight play results. promoting the good engagement of bosses 80.
• the resilient tongues 8 are carried by a support piece 9 which is attached in a housing adapted to the motor housing 1, the support part 9 having lateral claws 90 enabling it to be immobilized on the motor housing 1.
• This characteristic has the advantage of simplifying the production of the elastic tongues 8, the latter being able to be molded directly with the part 9 in a specific material offering good elasticity.
• Such a feature also makes it easy to replace a defective resilient tongue 8.
• the resilient tongues 8 have the shape of a blade, of a length of the order of 15 mm, a width of about 3 mm and a thickness of about 1 5 mm, which is connected at each of its ends to the support member 9, the boss 80 being disposed at one end of the blade secured to a deformable portion of the support member 9, the latter having a groove 91 promoting deformation this elastic region of this zone supporting the boss 80.
• the elastic tongue 8 may be fastened to only one of its ends so that the boss 80 is on a tongue portion disposed as a holder. overhang, a shim 81 may advantageously be placed under the elastic tongue 8 to reinforce the rigidity of the latter.
• the boss 80 preferably comprises a slope progressively evolving on each side of its top so that the locking of the container 2 on the base 11 remains reversible, an upward pull on the container 2 causing the erasing of the bosses 80 outside the openings 220 by elastic deformation of the tongues 8 and allowing the withdrawal of the container 2 without requiring any action on an unlocking button.
• the elastic tongues 8 and the shape of the boss 80 are dimensioned such that the tensile force exerted on the container 2 to extract it from the motor housing 1 is significantly lower than the weight of the motor housing 1 so that the container 2 can be easily removed from the motor housing 1 without generating a lifting of the motor housing 1.
• the appliance thus produced has the advantage of having great safety of use while maintaining a very great ergonomics of use in the introduction and removal of the container on the motor housing.
• the container requires no complex locking maneuver, such as a rotational movement, to be properly engaged on the motor housing.
• the container can be locked on the housing by exerting a simple downward pressure on the latter to engage the boss of the resilient tongues in the openings provided for this purpose of the base. This gives a container which is stabilized in a correct working position despite the thrust exerted by the spring of the safety control and this regardless of the weight of the ingredients introduced into the container.
• such a container also has the advantage of being very easily removable from the base, without requiring any action on an unlocking button, simply lifting the container so that the bosses of the elastic tabs fade openings under the force exerted by the lifting of the container, thus releasing the lock.
• the locking means may be constituted by resilient tongues, provided with bosses, carried by the container engaging in adapted openings carried by the base.
• the base of the container may be removably mounted on the container shell.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Food Science & Technology (AREA)
• Food-Manufacturing Devices (AREA)

Applications Claiming Priority (4)

Publications (2)

Family

ID=39357687

Family Applications (1)

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Cited By (1)

Families Citing this family (5)

Citations (2)

• 2007
  • 2007-03-06 FR FR0701613A patent/FR2908620B1/fr active Active
  • 2007-11-08 WO PCT/FR2007/001844 patent/WO2008068406A2/fr active IP Right Grant
  • 2007-11-08 ES ES200950005U patent/ES1071140Y/es not_active Expired - Lifetime

Patent Citations (2)

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