DESC:FIELD OF INVENTION
The present invention relates generally to mixer grinder appliance, particularly to mixer grinder appliance with self locking mechanism. More particularly, the present invention relates to self locking mechanism in mixer grinder appliance, wherein a jar on placing automatically slides and locks with base portion of the mixer grinder appliance when said mixer grinder appliance is switched on.

BACKGROUND OF INVENTION
Generally, a mixer grinder appliance consists of a jar with a rotating metal blade powered by an electric motor positioned in base portion of the mixer grinder appliance. The bottom portion of the jar has provision for locking on its outer surface to prevent the jar from rotating during operation. The jar is detachable from the base portion for ease of use and ease of cleaning. The base portion further contains controls for operating the mixer grinder. The motor drives the blades in response to activation of one of the controls. Conventionally, the jar is detachably placed to the base portion by manually locking the jar within the base portion.

US8616482 discloses a kitchen appliance, which comprises a removable bowl comprising a bottom part that is supported by the support surface during operation and a coupling member supported from said bottom part. The support surface of the base station is provided with a rotation lock in the form of a cut-away, which is provided to prevent the bowl from rotating during operation by accommodating a notch which is provided in the bottom part of the bowl. However, there is high risk that the removable bowl may get disengaged from the bottom part while operation.

457/MUM/2008 discloses a mixer grinder comprising at least two electromagnetic locks for the utility jar thereof. The locks are located in the utility jar locating collar of the mixer grinder diametrically opposite to each other.

Accordingly, there exists a need for a mixer grinder appliance with self locking mechanism, which automatically locks the jar with base portion of the mixer grinder appliance when said mixer grinder appliance is switched on.

OBJECTS OF INVENTION
One or more of the problems of the conventional prior art may be overcome by various embodiments of the present invention.

It is the primary object of the present invention to provide a mixer grinder appliance with self-locking mechanism for jars.

Another object of the present invention is to provide a self locking mechanism in mixer grinder appliance, wherein a jar on placing automatically slides and locks with the base portion of the mixer grinder appliance when said mixer grinder appliance is switched on.

It is another object of the present invention to provide a mixer grinder appliance with self locking mechanism, which ensures safe seating and locking of the jar with the base portion of the mixer grinder appliance.

It is another object of the present invention to provide a mixer grinder appliance with self locking mechanism, eliminating jar vibration & tilting and maintain firm engagement of coupler.

SUMMARY OF INVENTION
Thus according to the basic aspect of the present invention there is provided a mixer grinder appliance with self locking mechanism, comprising of:
jar with a support part;
base portion;
at least one protruded lock provided on the support part of the jar; and
at least one pathway provided on the base portion,
wherein the the support part of the jar automatically locks with the base portion by mating the protruded lock with the pathway.

It is another aspect of the present invention, wherein the protruded lock is provided with a cavity.

It is another aspect of the present invention, wherein the pathway is provided with a lock projection accommodated in a slot.

It is another aspect of the present invention, wherein the lock projection of the pathway locks with the cavity of the protruded lock to lock the jar and the base portion.

It is another aspect of the present invention, wherein the base portion is provided with a first coupler at the top of its surface.

It is another aspect of the present invention, wherein the support part is provided with a second coupler at its bottom housing.

It is another aspect of the present invention, wherein the first coupler has one or more angular projected teeth to ensure proper mating with the second coupler when the jar is placed.

It is another aspect of the present invention, wherein the protruded lock is manually locked with the pathway by locking the lock projection and the cavity.

It is another aspect of the present invention, wherein the protruded lock is of declined angular shape to enable ease of sliding.

BRIEF DESCRIPTION OF DRAWINGS:
Figure 1: illustrates exploded view of the mixer grinder appliance with self locking jar assembly according to present invention.
Figure 2: illustrates enlarged view of the lock in the support part (B) at the bottom of the jar according to present invention.
Figure 3: illustrates enlarged view of the pathway (A) on top of the base portion to receive the respective protruded locks according to present invention.

DETAILED DESCRIPTION OF THE INVENTION WITH REFERENCE TO THE ACCOMPANYING FIGURES
The present invention as herein described relates to a mixer grinder appliance with self locking mechanism. More particularly, the present invention relates to self locking mechanism in mixer grinder appliance, wherein a jar on placing automatically slides and locks with base portion of the mixer grinder appliance when said mixer grinder appliance is switched on.

Referring to Figures 1 to 3, the mixer grinder appliance with self locking mechanism comprises of a jar [1] with or without handle [1a] and with a support part [1b]; base portion [3]; at least one protruded lock [7] provided on the support part [1b] of the jar [1] on its outer surface as shown in Figure 3; and at least one pathway [5] provided on the base portion [3]. The support part [1b] of the jar [1] automatically locks with the base portion [3] by mating the protruded lock [7] with the pathway [5]. The protruded lock [7] is provided with cavity [8]. The top side of the base portion [3] is provided with two pathways [5] as shown in Figure 2 on its inner surface to receive the respective protruded locks [7] of the jar [1], said the pathway [5] is provided with a lock projection [6] accommodated in a slot.

The lock projection [6] of the pathway [5] locks with the cavity [8] of the protruded lock [7] to lock the jar [1] and the base portion [3]. The base portion [3] is provided with a first coupler at the top of its surface. The support part [1b] is provided with a second coupler at its bottom housing. The first coupler has one or more angular projected teeth to ensure proper mating with the second coupler when the jar [1] is placed. After mating, the jar [1] with the protruded locks [7] automatically slides along the respective pathways [5] and locks with the base portion [3] of the mixer grinder appliance when said mixer grinder appliance is switched on. The protruded lock [7] is of declined angular shape to enable ease of sliding said protruded lock [7] along the respective pathways [5].

When the mixer grinder appliance is switched on, the force generated by motor housed in the base portion [3] automatically drives the jar [1] with the protruded locks [7] along the respective pathways [5] in the top of the base portion [3], and the slots with lock projections [6] slides and locks with the cavities [8] in the protruded locks [7]. Mating of the lock projections [6] with the respective cavities [8] ensures easy and safer locking of the jar [1] with the base portion [5].

In one aspect, the jar [1] with the protruded locks [7] can be manually locked with respective pathways [5] in the top of the base portion [5], and the slots with lock pins [6] slides and locks with the cavities [8] in the protruded locks [7].

In one embodiment, the base portion [3] can have one pathway [5] to mate with the protruded lock [7] to lock the support part [1b] of the jar [1] with the base portion [3] automatically or manually.

The embodiments of the invention been disclosed in this specification are purely for illustrative purposes and the present invention can be embodied in many other forms or carried out in other ways, without departing from the spirit or essential characteristics thereof. It is understood that the invention is not limited thereto, but is susceptible of numerous changes and modifications as known to those skilled in the art, and all such variations or modifications lies within the scope of the present invention.

,CLAIMS:WE CLAIM:
1. A mixer grinder appliance with self locking mechanism, comprising of:
jar [1] with a support part [1b];
base portion [3];
at least one protruded lock [7] provided on the support part [1b] of the jar [1]; and
at least one pathway [5] provided on the base portion [3],
wherein the support part [1b] of the jar [1] automatically locks with the base portion [3] by mating the protruded lock [7] with the pathway [5].

2. The mixer grinder appliance as claimed in claim 1, wherein the protruded lock [7] is provided with a cavity [8].

3. The mixer grinder appliance as claimed in claim 1, wherein the pathway [5] is provided with a lock projection [6] accommodated in a slot.

4. The mixer grinder appliance as claimed in claim 2 or 3, wherein the lock projection [6] of the pathway [5] locks with the cavity [8] of the protruded lock [7] to lock the jar [1] and the base portion [3].

5. The mixer grinder appliance as claimed in claim 1, wherein the base portion [3] is provided with a first coupler at the top of its surface.

6. The mixer grinder appliance as claimed in claim 1, wherein the support part [1b] is provided with a second coupler at its bottom housing.

7. The mixer grinder appliance as claimed in claim 5 or 6, wherein the first coupler has one or more angular projected teeth to ensure proper mating with the second coupler when the jar [1] is placed.

8. The mixer grinder appliance as claimed in claim 1, wherein the protruded lock [7] is manually locked with the pathway [5] by locking the lock projection [6] and the cavity [8].

9. The mixer grinder appliance as claimed in claim 1, wherein the protruded lock [7] is of declined angular shape to enable ease of sliding.