Hand-held electrical beater-mixer preventing concomitant emplace

Details Hand-held electrical beater-mixer preventing concomitant emplace Hand-held electrical beater-mixer preventing concomitant emplace

1997-09-18

1999-02-16

Cooley, Charles E.

Agitating

Operator supported

366344, A47J 4307, B01F 1304

Patent

active

058712780

DESCRIPTION:

BRIEF SUMMARY
BACKGROUND OF THE INVENTION

The present invention relates to a hand-held electrical beater-mixer, particularly a kitchen beater-mixer, comprising a body of generally prismatic form containing an electrical drive motor which, considering the beater-mixer in its normal use position with at least one beating accessory such as for example a whisk, is disposed horizontally in the lower portion of said body, a rotatable coupling device of said beating accessory which is arranged in the forward portion of said body opening into the base of the latter, and which is connected to the front end of the drive shaft, a rotatable drive carried by the rear end of the drive shaft and disposed in a cylindrical securement socket of a mixing device which extends horizontally in the rear portion of said body and which is open facing an opening provided in the rear portion of the body and adapted to receive the mixing accessory, which mixing accessory comprises a shaft whose one end is adapted to couple with said drive, as well as an ejection member arranged vertically above and in communication with the coupling device of the beating accessory and displaceable in height from a lowered position to a raised position under the action of the beating accessory during its complete emplacement, and conversely from this high position to the low position in which it frees said beating accessory under the action of a manual control member.
There will be understood by beating accessory, a working tool of the whisk or mixer type, and by mixing accessory a working tool turning at high speed of the mixer foot type with a rotating helix, or again of the mixing bowl type with a rotating knife.
With the known apparatus of this type, it can happen that through mistake or negligence, the user mounts at the same time the beating accessory and the mixing accessory in the body of the apparatus, then carries out actuation of the apparatus; the two tools working in simultaneous movement, of respectively different types, giving rise to the danger of exposing the user to serious wounding.


SUMMARY OF THE INVENTION

The invention has for its object to overcome this risk and to provide a hand-held electric beater-mixer, of the type set forth above, which guarantees in a simple manner absolute safety for the user by preventing the concomitant emplacement of the two accessories, respectively for beating and for mixing, and hence their simultaneous function.
According to the invention, the beater-mixer comprises moreover movable mechanical means urged by resilient return means and adapted on the one hand to free the displacement of the ejection member whilst preventing the passage into the interior of the socket so as to permit only the emplacement of the beating accessory, and on the other hand to block, against said resilient return means, the ejection member in lowered position whilst freeing the passage to the interior of the socket so as to permit only the emplacement of the mixing accessory.
Thus, thanks to these mechanical safety means acting by their selective interaction between the ejection member and the interior of the socket of the apparatus, it is thereafter impossible to emplace simultaneously the two accessories, respectively of beating and mixing, thereby avoiding any risk of wounding during actuation of the apparatus.


BRIEF DESCRIPTION OF THE DRAWINGS

The characteristics and advantages of the invention will become further apparent from the description which follows, by way of non-limiting example, with reference to the accompanying drawings, in which:
FIG. 1 is a fragmentary vertical cross-sectional view of a beater-mixer according to the invention, in stopped position and in the absence of an accessory;
FIG. 2 is a view identical to that of FIG. 1, but with a beating accessory; and
FIG. 3 is a view identical to FIG. 1, but with a mixing accessory.


DESCRIPTION OF THE PREFERRED EMBODIMENT

The hand-held beater-mixer shown in FIG. 1 comprises a body 2 of generally prismatic shape having a hollow portion 4 which delimits a handle 5, an

REFERENCES:
patent: 3328001 (1967-06-01), Zasadny et al.
patent: 3533600 (1970-10-01), Gerson
patent: 3595093 (1971-07-01), Du Bois
patent: 3604114 (1971-09-01), Swanke et al.
patent: 3619754 (1971-11-01), Fuchs
patent: 5316382 (1994-05-01), Penaranda et al.

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