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
  • A47J43/075—Safety devices
  • A47J43/0761—Safety devices for machines with tools driven from the lower side
  • A47J43/0772—Safety devices for machines with tools driven from the lower side activated by the proper positioning of the cover
• • 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
  • A47J43/046—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven with tools driven from the bottom side

Definitions

• the present invention relates to the technical field
• the present invention relates to an apparatus comprising a motor housing receiving a container provided with a cover and relates more particularly to the locking of the cover.
• Document GB 2 249 368 describes a household robot comprising a housing receiving a working container closed by a lid.
• the cover has a tab intended to engage in an opening of a rotary part forming the upper part of the housing and to cooperate with one end of a lever mounted in the housing. The other end of the lever then releases a stop formed on the rotary part and authorizes the rotation of said part, which drives a switch via a stop.
• this device has the disadvantage of having a cover locked by bayonet on the working container.
• the object of the present invention is to provide an apparatus whose use is simple, in which the cover can be locked on the container.
• Another object of the present invention is to provide an apparatus having a safety device preventing the use of the apparatus when the lid is not locked on the container.
• Another object of the present invention is to provide a solution reducing the number of parts to be manufactured and therefore also reducing the assembly time of the device.
• a household appliance for culinary preparation comprising a housing forming a receptacle receiving base, the housing comprising a motor associated with a switch and with pivoting means of a rotary working tool disposed in the container, the container being closed by a lid, the housing comprising a locking part associated with an actuating means, movable between an active locking position, in which the locking part blocks a locking surface of the lid closing the container arranged on the base, and an unlocked position, in which the locking piece releases the surface of locking of the cover, the locking piece cooperating with the switch, if desired by means of a mechanism, the locking piece having a stable unlocked position, in which the switch prevents the operation of the motor, the switch authorizing the operation of the motor when the locking part occupies the active locking position, the lid closing the container disposed on the base cooperating with a control element mounted in the housing, the control element being distinct from the locking part, causes the locking piece to cooperate with the switch via the control element, which is movable against a return means between
• the cover can then include an actuating member designed to cooperate with an accessible part of the control element when the cover closes the container placed on the base.
• Control means other than mechanical control means can also be envisaged, in particular magnetic or optical means.
• the locking part in the active locking position covers the accessible part of the control element.
• This arrangement makes it possible to avoid an intentional or unintentional action of the accessible part of the control element by means of an element other than the actuating member of the cover, causing the engine to start.
• the switch for starting the motor can then be safely controlled by the locking member brought into the active locking position.
• the control element comprises a passive stop intended to cooperate with an active stop of the locking part when the control element occupies the rest position, and to release the active stop of the locking part when the element control is moved out of the rest position.
• the locking piece has between the unlocked position and the locking position activates a passive locking position in which the locking piece covers the accessible part of the control element and in which the switch does not allow operation of the motor.
• This arrangement allows the movement of the locking piece to lock the cover before authorizing the starting of the engine, and conversely, to stop the running of the engine before unlocking the cover. This makes the device safer.
• the locking piece comprises a passive stop capable of cooperating with an active stop of the control element moved from the rest position to an intermediate position in which in which the switch prevents the operation of the motor.
• the locking part when the locking part is in the passive locking position, the locking part comprising a ramp provided for moving the control element from the intermediate position to the active position in which the switch authorizes the operation of the motor when the part lock is moved from the passive lock position to the active lock position.
• control element in the active position cooperates with the switch to give this switch a configuration allowing the operation of the motor while the locking member reaching the active locking position cooperates with another switch for give this switch a configuration allowing engine operation.
• the two switches must be pressed both to allow the engine to operate.
• This other embodiment also offers advanced security.
• control element is slidably mounted in the housing.
• Other configurations are possible, such as a rocker.
• the return means is preferably elastic. However, a scale using a gravity return means can be considered.
• the locking piece is rotatably mounted on the housing, such an arrangement being more reliable and more ergonomic than a moving locking piece in translation.
• the locking piece comprises a cutout disposed above the locking surface of the lid closing the container disposed on the base, when the locking piece occupies the unlocked position.
• the container and the base comprise axial interlocking means. This arrangement makes it possible to limit the stress on the drive means of the working tool arranged in the base of the housing.
• the container and the base include bayonet locking means.
• This arrangement also makes it possible to limit the stress on the tool drive means. of work arranged in the base of the box.
• this arrangement makes it possible to limit the vertical forces exerted on the locking piece.
• At least one element disposed in the half of the cover diametrically opposite the locking surface is capable of bearing against an interior wall of the container during a pivoting of the cover relative to said surface maintained in the position of locking by the locking piece, and / or at least one element disposed in the other half is capable of bearing against an external wall of the container when the lid is pivoted relative to said surface maintained in the locking position by the locking piece.
• the container and the lid comprise articulation means comprising a concave interlocking surface integral with the container, respectively with the lid, at least a portion of this surface being located above, respectively below , of a plane passing through the center of curvature of said concave surface and through the fulcrum of the locking piece on the locking surface of the cover when the locking piece locks the hinged cover on the container in the closed position.
• the locking piece bears on the cover in a region diametrically opposite the articulation means.
• the articulation means are thus arranged opposite the part of the housing comprising the locking member, which allows the user to more easily control the tilting of the cover.
• the lock obtained is more effective.
• FIG. 2 is a perspective view of this embodiment, showing the cover separated from the container by pivoting around the pivoting means, - FIG. 3 is a view of the device showing the positioning of the cover,
• FIG. 4 is a partial view of the device in a configuration in which the cover is locked but the device is not in operation
• - Figure 5 is a partial view of the device in a configuration in which the cover is locked and in which the device is running
• - Figure 6 shows a control element of the device
• FIGS. 7 and 8 are side and front views of a locking part of the device cover.
• the food processor or household appliance for culinary preparation illustrated in FIGS. 1 to 3 comprises, in a housing 11, a motor 17 driving, by means of a transmission such as a belt transmission, pivot means 2 of a rotary tool 2a, through the bottom of a container 1.
• the housing 11 comprises a base 12, on which the container 1 is placed, adjacent to an upright 18 in which the motor 17 is housed.
• the container 1 is closed by a cover 3.
• the container 1 and the base 12 include bayonet locking means.
• the cover 3 is held against the edge 1a of the opening of the container 1.
• a seal 4 housed in an annular housing formed under the cover 1 serves to seal between the edge 1a of the container 1 and the cover 3.
• Locking means formed by a disc 5 rotatably mounted on the top of the housing 11 of the food processor serve to hold the edge of the cover 3 against the edge 1a of the container 1.
• the locking disc 5 includes a cutout 5a substantially corresponding to the free lateral face of the locking surface 3a.
• the locking disc 5 When the locking disc 5 is rotated in the position illustrated in FIG. 1, it covers a locking surface 3a arranged on the upper face of the cover 3 (FIG. 3), while by turning this locking disc 5 by 90 ° to bring it into the position illustrated by FIG. 3, the cutout 5a is brought in front of the locking surface 3a of the cover 3, so that the locking disc 5 no longer covers the locking surface 3a of the cover 3 and release this one.
• the cover 3 comprises, in this example, a radial arm 6 which ends in a fitting surface 7 forming a hemispherical portion (FIG. 3) whose convex surface is fitted in a complementary nesting surface 8 forming a concave hemispherical portion, of the same radius as that of the convex surface of the hemispherical portion of the cover, said concave nesting surface 8 being formed, in this example, at the upper end d 'a handle 9 used to grip the container 1.
• the concave interlocking surface 8 integral with the container 1 comprises a portion lying above a plane passing through the center of curvature O of said concave surface and through the fulcrum of the locking means 5 on the locking surface 3a of the cover 3 when said locking means lock the cover 3 hinged on the container 1 in the closed position.
• the locking surface of the cover is preferably arranged diametrically opposite the articulation means, to simplify the production of the locking means of the device. However, the locking surface is not necessarily arranged on the upper face of the cover.
• the locking disc 5 carrying an outer rib 5b forms a locking piece 20 associated with an actuating means 21.
• An actuating member 3e is formed under the underside of the locking surface 3a of the cover 3. When the cover 3 closes the container 1 placed on the base 12, the actuating member 3e cooperates with a control element 30 slidably mounted in the housing 11 against a return means 39. The control element 30 cooperates with a switch 19 of the motor electrical circuit 17.
• the locking piece 20 is movable between an unlocked position shown in Figure 3 corresponding to Figure 2, an intermediate passive locking position shown in Figure 4, and an active locking position shown in Figure 5 corresponding to Figure 1
• the cover 3 can be put in place or removed when the locking piece 20 occupies the unlocked position.
• the cover 3 is locked by the locking piece 20 occupying the other positions.
• the control element 30 is movable between a rest position, or return position, as shown in FIG. 3, and several active positions. In the rest position when the cover 3 is not in place, or in a first active position shown in FIG. 4, the switch 19 is not actuated by the control element 30. In the second active position shown in FIG. 5, corresponding to FIG. 1, the switch 19 is actuated by the control element 30.
• the control element 30 comprises a first upper rod 34, the top of which forms an accessible part 31 cooperating with the actuating member 3e of the cover 3.
• the accessible part 31 is arranged opposite d 'an opening of the upper face of the housing 11.
• the control element 30 also comprises a second upper rod 35 the top of which forms a passive stop 32 intended to cooperate with an active stop 22 of the locking piece 20 formed by a notch formed on a rib 25 of the underside of the locking piece 20, best seen in Figure 8.
• the control element 30 also includes a transverse wall 36, the end of which forms an active stop 33 intended to cooperate with a passive stop 23 of the locking piece 20 formed by the top of a vertical rib 26 formed on a portion of cylindrical surface 27 with a vertical axis of the locking part 20, better visible in FIGS. 7 and 8.
• the control element 30 comprises a lower rod 37 having a free end 38 intended to cooperate with the switch 19.
• the locking part 20 further comprises a ramp 24 provided to cooperate with the passive stop 32 so as to move the control element 30 in the direction of the switch 19 when the locking piece 20 is turned towards the active locking position.
• the operation of the device is as follows.
• the cover 3 does not close the container 1 placed on the base 12 (FIG. 3) the passive stop 32 of the control element 30 cooperates with the active stop 22 of the locking piece 20 to prevent rotation of the piece of lock 20 which is thus locked in the unlocked position.
• the control element 30 When the cover 3 closes the container 1, the control element 30 is moved by the actuating member 3e of the cover 3 and the passive stop 32 releases the active stop 22.
• the locking piece 20 can be turned to reach a passive locking position shown in Figure 4, in which the cover 3 is locked but in which the switch 19 still has a non-active configuration, the control element 30 occupying an intermediate position.
• the locking piece 20 must be turned again so that the ramp 24 cooperating with the passive stop 32 moves the control element 30 away from the intermediate position to occupy the active position in which the switch 19 is actuated.
• the device is thus particularly safe, because the passive stops 23 of the locking piece 20 prevent the control element 30 from reaching the switch 19 when the locking piece 20 occupies the unlocked position.
• the active stop 33 of the control element 30 cooperates with the passive stop 23 of the locking piece 20 as long as the locking piece 20 has not covered the accessible part 31 of the control element 30.
• the locking piece 20 In the passive locking position, shown in FIG. 4, the locking piece 20 covers the accessible part 31 and the active stop 33 is released from the passive stop 23. The cover 3 cannot be removed because the locking piece 20 blocks the locking surface 3a.
• the ramp 24 of the locking piece 20 has pushed the control element 30 towards the switch 19 to authorize the starting of the device.
• the passive stop of the control element and the active stop of the locking piece could be eliminated, the blocking of the locking piece not being essential for safety.
• the active and passive stops of the locking piece and of the control element could be eliminated, the control element cooperating with a first switch when the lid closes the container placed on the base, the piece of locking cooperating with a second switch only after reaching a position covering the accessible part of the control element. The operation of the device is then authorized when the two switches are activated.
• the interlocking surface of the cover could have a greater height, allowing only to insert said interlocking surface axially in the container.
• the rotating interlocking surfaces forming the articulation means are then eliminated.
• the fitting surface of the cover is therefore not necessarily annular. It suffices that at least one element disposed in the half of the cover diametrically opposite the locking surface is capable of bearing against an interior wall of the container when the cover is pivoted relative to said surface maintained in the locking position by the locking piece or that at least one element placed in the other half is likely to bear against an outer wall of the container during a pivoting of the cover relative to said surface maintained in the locking position by the locking piece.
• the locking piece is not necessarily rotatable, and can for example be slidably mounted.
• the control element is not necessarily slidably mounted in the housing, but can for example be rotatable.
• the bayonet locking means of the container on the base can be replaced by axial interlocking means hindering the lateral movement of the container relative to the base of the housing.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Food Science & Technology (AREA)
• Cookers (AREA)
• Closures For Containers (AREA)
• Food-Manufacturing Devices (AREA)

Applications Claiming Priority (3)

Publications (1)

Family

ID=8858261

Family Applications (1)

Country Status (5)

Families Citing this family (14)

Family Cites Families (10)

• 2000
  • 2000-12-27 FR FR0017108A patent/FR2818525B1/fr not_active Expired - Fee Related
• 2001
  • 2001-11-30 CN CN 01805446 patent/CN1404372A/zh active Pending
  • 2001-11-30 BR BR0108616-2A patent/BR0108616A/pt not_active Application Discontinuation
  • 2001-11-30 WO PCT/FR2001/003793 patent/WO2002051293A1/fr not_active Application Discontinuation
  • 2001-11-30 EP EP01272055A patent/EP1255479A1/de not_active Withdrawn

Non-Patent Citations (1)

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