KR101623904B1 - Mixer - Google Patents

Abstract

The present invention relates to a mixer.
A blender according to an embodiment of the present invention includes: a container in which a crushing object is accommodated; A blade rotating within the vessel; A driving unit for generating a rotational force; A lead which shields the container and has a pressing projection formed in a direction of a rotation axis of the blade; And a clutch that moves in the axial direction by the pressing projection to transmit the rotational force of the driving unit to the blade.

Description

Mixer {Mixer}

The present invention relates to a mixer, and more particularly to a mixer in which the rotation of the cutter is stopped not only when the container is opened but also when the fastening force of the lid covering the container and the container become weak, even if the container is not completely opened.

Due to the rapid development of society, many people have become interested in health. Therefore, blender is becoming popular as an electronic product that can make various health foods easily and inexpensively. Such blenders are widely used not only at home but also at general restaurants such as coffee shops and confectioneries, because they can grind or grind vegetables or fruits to make juices.

The shape and structure of the blender may vary depending on the maker or the material to be crushed, but usually the cutter is placed in a container containing the material to be crushed and the cutter is placed on / off via the on / The grinding operation is performed while turning on / off the operation of the grinder.

In recent years, a compact separable type mixer capable of separating the container and the cutter is widely used. However, this type of separable type cutter has a problem that when the lid covering the container is separated from the container, the cutter flies out of the container or the food inside the container splashes.

Registration Utility Model No. 20-0292184

Problems to be solved by the present invention are as follows.

First, it provides a mixer in which rotation of the cutter is automatically stopped when the container and the lead are separated.

Second, when the coupling between the lead and the container is loosened even before the leads are separated, the rotation of the cutter is stopped in advance.

The problems of the present invention are not limited to the above-mentioned problems, and other problems not mentioned can be clearly understood by those skilled in the art from the following description.

In order to achieve the above object, a blender according to an embodiment of the present invention includes: A blade rotating within the vessel; A driving unit for generating a rotational force; A lead which shields the container and has a pressing projection formed in a direction of a rotation axis of the blade; And a clutch that moves in the axial direction by the pressing projection to transmit the rotational force of the driving unit to the blade.

The details of other embodiments are included in the detailed description and drawings.

The present invention has the following effects.

First, the rotation of the cutter is automatically stopped when the lid is detached by adopting the clutch.

Secondly, since the lid is fixed to the container, but the cutter does not rotate or is in a fastened state, the object to be crushed is not scattered in the container even when the cutter rotates by inertia.

The effects of the present invention are not limited to the effects mentioned above, and other effects not mentioned can be clearly understood by those skilled in the art from the description of the claims.

1 is a partial perspective view of a blender according to an embodiment of the present invention.
2 is a sectional view taken along the line AA in Fig.
3 is a perspective view of a clutch according to an embodiment of the present invention.
4 is a perspective view of a cutter according to an embodiment of the present invention.
5 is a front view of the latching part according to an embodiment of the present invention.
FIG. 6 is a view showing an engaging step of the engaging part and the fixing protrusion according to an embodiment of the present invention.

BRIEF DESCRIPTION OF THE DRAWINGS The advantages and features of the present invention, and the manner of achieving them, will be apparent from and elucidated with reference to the embodiments described hereinafter in conjunction with the accompanying drawings.

The present invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of the invention to those skilled in the art. Is provided to fully convey the scope of the invention to those skilled in the art, and the invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout the specification.

Hereinafter, the present invention will be described with reference to the drawings for explaining a blender in accordance with embodiments of the present invention.

1 is a partial perspective view of a blender according to an embodiment of the present invention. 2 is a cross-sectional view taken along the line A-A in Fig. 3 is a perspective view of the clutch 30 according to an embodiment of the present invention.

1 to 3, a blender according to an embodiment of the present invention includes a container 10 in which a crushing object is accommodated; A blade 41 rotating inside the vessel 10; A driving unit (1) for generating a rotational force; A lid 20 which shields the container 10 and is provided with a pressing projection 21 in the direction of the rotation axis O-O of the blade 41; And a clutch 30 that moves in the axial direction by the pressing protrusion 21 and transmits the rotational force of the driving unit 1 to the blade 41. [

The vessel (10) receives the object to be ground. The container 10 includes a handle in a cup shape. The container 10 is detachably coupled to the base 3 on which the driving portion 1 and the clutch 30 are disposed. The blade 41 crushes the object to be ground. The blades 41 are arranged in plural. The blade (41) rotates inside the vessel (10).

The driving unit 1 is an actuator. The driving unit 1 may be a motor. The driving unit 1 converts the electric force into rotational force. The driving unit 1 engages with the clutch 30. [ The lid 20 shields the container 10. The lid (20) is provided with a pressing projection (21). The pressing projection 21 protrudes toward the inside of the container 10. The clutch (30) is engaged with the driving part (1) to transmit power. The clutch 30 is moved in the axial direction by the pressing projection 21.

 The clutch 30 is restored when the container 10 and the lid 20 are disengaged to release power transmission. The clutch 30 is restored when disengaged from the pressure projection 21, and the transmission of power is interrupted. The clutch 30 can idle. When the lid 20 is engaged with the container 10, the pressing projection 21 presses the clutch 30 to move the clutch 30 downward. When the lid 20 is detached from the container 10, the clutch 30 is restored and moved upward. When the clutch 30 is moved upward, the transmission of power is released. Therefore, even if the user removes the lid 20 from the container 10 during the operation of the blender or the lid 20 is detached by itself due to vibration, the blade 41 can not receive power and stops rotating.

 The clutch (30) includes a main disk (32) that receives power from the drive unit (1) and rotates; A driven disc (33) in contact with the main disc (32) and rotated by receiving power; And a shaft 34 connected to the driven disc 33 and forming a rotation axis O-O and coaxial with the press protrusion 21. [ The main disk 32 is connected to the drive disk. The main disk 32 is coupled with the rotation axis O-O of the driving unit 1 and can rotate.

The driven disc 33 can be detachably coupled to the main disc 32. The driven disc 33 and the main disc 32 can be combined or separated. The shaft 34 is connected to the driven disc 33. The shaft 34, the driven disk 33, and the main disk 32 form coaxial axes. The shaft 34 moves in the axial direction in association with the end portion of the pressing projection 21.

 At least one of the main disc 32 and the driven disc 33 may be formed with a protrusion 36 protruding for power transmission. The main disk 32 and the driven disk 33 can be engaged with each other and rotated integrally. The projecting direction of the engagement projection 36 may be parallel to the axial direction.

In the blender according to the embodiment of the present invention, the clutch 30 includes an elastic member 35 for applying a restoring force to the shaft 34 and the driven disc 33 in the axial direction. The elastic member (35) imparts a restoring force to the clutch (30). The clutch (30) forms a housing (31) which forms an external shape. The elastic member 35 is disposed inside the housing 31. The elastic member 35 exerts an elastic force in a direction in which the engagement of the driven disc 33 and the main disc 32 is released. For example, the elastic member may be formed so as to surround the shaft 34 so as to apply an elastic force to move the shaft 34 in the direction of the lead 20. [ As another example, the elastic member 35 may be disposed between the main disc 32 and the driven disc 33 to exert an elastic force in a direction in which the driven disc 33 and the main disc 32 are disengaged from each other.

 One of the main disk 32 and the driven disk 33 is formed with a guide groove 37 for guiding the movement of the driven disk 33 so as to form a coaxial axle with each other, And a guide protrusion 38 corresponding to the guide protrusion 38 may be formed. The guide groove 37 may be formed to be inclined and the guide protrusion 38 may protrude from the guide groove 37 at the same inclination. For example, the guide protrusion 38 may be conical, and the guide groove 37 may be conical depressed. The central axis of the guide groove 37 and the guide projection 38 may be the same as the rotational axis O-O of the main disk 32 and the driven disk 33. [

The blender 10 according to the embodiment of the present invention includes a guide rod 13 which forms a coaxial shaft with the shaft 34 and in which a hollow 11 into which the clutch 30 is inserted is formed. The guide bar (13) is formed inside the container (10). The guide rod (13) forms the hollow (11). The shaft 34 is inserted into the hollow 11. The shaft 34 and the guide rod 13 form a predetermined gap.

The blender according to an embodiment of the present invention includes an outer cylinder 43 surrounding a guide rod 13 and having a blade 41 disposed therein; And an inner cylinder 42 formed inside the outer cylinder 43 and into which the shaft 34 is inserted. The cutter 40 receives power from the driving unit 1 and rotates. The cutter (40) receives power from the shaft (34). The cutter (40) has a blade (41) mounted on its outer circumferential surface. The cutter 40 may be formed of a plurality of cylinders having different diameters. The outer cylinder (43) receives the inner cylinder (42). The inner cylinder 42 engages the shaft 34 within the vessel 10. The shaft 34 is formed in a non-cylindrical shape. The inner cylinder 42 is preferably formed in close contact with the shaft 34. For example, the shaft 34 may be a quadratic post, and the inner cylinder 42 has an inner circumferential surface that mates with the shaft 34 so that a quadrangular post may be inserted.

 The inner cylinder 42 is fitted with the shaft 34 and rotates together. An inner cylinder 42 is inserted into the inside of the guide rod 13, and the guide rod 13 is inserted into the outer cylinder 43. The guide rod 13 is disposed between the inner cylinder 42 and the outer cylinder 43.

4 is a perspective view of the cutter 40 according to an embodiment of the present invention.

4, the pressing projection 21 is inserted into the inner cylinder 42 to apply pressure to the shaft 34. As shown in Fig. The cutter 40 has an opening 45 through which the pressing projection 21 passes and the opening 45 communicates with the inner cylinder 42. The pressing projection 21 meets the shaft 34 disposed in the inner cylinder 42 through the opening 45.

5 is a front view of the latching portion 23 according to an embodiment of the present invention. FIG. 6 is a view illustrating an engaging step of the engaging part 23 and the fixing protrusion 15 according to an embodiment of the present invention.

5 to 6, the container 10 is formed with a fixing protrusion 15 protruding from the outer circumferential surface thereof. The lid 20 is fixed to the container 10 by a fixing protrusion 15, The engaging portion 23 of the engaging portion 23 can be formed. The fixing protrusion 15 is formed in the container 10. The lid 20 is engaged with the container 10 by the fixing protrusion 15.

The engaging portion 23 is formed in a stepped shape. The fixing protrusion (15) meets with the engaging portion (23) when the lid (20) is rotated. When the fixing protrusion 15 comes into contact with the fixing portion 23, the fixing protrusion 15 prevents the lead 20 from rotating. However, when the lid 20 is pushed in the direction of the container 10, the lid 20 can be moved to the next step so that the lid 20 can be rotated.

 The clutch 30 includes an elastic member 35 that presses the shaft 34 to push the pressing protrusion 21 so that the upper surface of the engaging portion 23 and the lower surface of the fixing protrusion 15 come into contact with each other and fix it . The elastic member (35) applies an elastic force to the shaft (34). The shaft 34 applies an elastic force to the pressing projection 21. Since the pressing projection 21 and the lid 20 are integral with each other, the lid 20 receives a force in a direction away from the container 10. [ The fixing protrusion 15 and the engaging portion 23 are fixed to each other and the fixing protrusion 15 and the engaging portion 23 are in close contact with each other as the lead 20 receives a force in a direction away from the container 10 So that the lid 20 is kept in the state of being fastened to the container 10. [0064] As shown in Fig.

 The engaging portion 23 includes a sub-engaging jaw 25 formed on the lower side; And the main engaging jaw 24 formed at a position higher than the sub engaging jaw 25. The clutch 30 releases power transmission when the engaging jaw 25 contacts the engaging jaw 25. [ The engaging portions 23 are formed in plural to form the sub-engaging jaws 25 and the main engaging jaws 24. The main engaging jaw 24 is formed above the sub-engaging jaw 25. Depending on the degree of movement of the shaft 34, the driven disc 33 and the main disc 32 can be engaged or disengaged.

The height difference between the sub-engaging jaw 25 and the main engaging jaw 24 may be equal to or greater than the minimum interval at which the engagement between the main disk 32 and the driven disk 33 is released. Therefore, when the engaging portion 23 moves from the main engaging jaw 24 to the sub engaging jaw 25, the power transmission is released and the rotation of the cutter 40 is stopped. However, since the sub-engaging jaw 25 and the fixing protrusion 15 remain in the engaged state, the lid 20 closes the container 10. Therefore, even when the cutter 40 rotates due to inertia, the object to be crushed is not scattered out of the vessel 10 due to the lid 20. [

 The engaging portion 23 includes a supporting portion 24 formed on the side surface of the lid 20 and covering the outer surface of the container 10. The sub-engaging jaw 25 and the main engaging jaw 24 are supported by the supporting portion 24, As shown in FIG. The support portion 24 is formed on the side surface of the lead 20. The support portion 24 covers the side surface of the container 10. The support portion 24 covers the outer surface of the container 10. The engaging portion 23 is formed on the inner surface of the support portion 24 and the fixing protrusion 15 is formed corresponding to the engaging portion 23.

 The support portion 24 may be formed with a guide engaging jaw 26 for guiding the fixing protrusion 15 to the sub-engaging jaw 25 when the lead 20 is coupled to the container 10. [ The guide latching jaw 26 is formed in the support portion 24. [ When the user puts the lid 20 on the container 10, the guide engaging jaw 26 and the fixing protrusion 15 meet and the lid 20 can no longer move in the direction of the container 10. When the user rotates the lid 20, the fixing protrusion 15 is directed to the sub-engaging jaw 25 and soon comes into contact with the main engaging jaw 24. The user can push the lid 20 again in the direction of the container 10 and then rotate the lid 20. [ Therefore, the fixing protrusions 15 can be engaged with the engaging portions 23 having a plurality of heights.

 The attaching / detaching protrusion 27 may be formed on a surface of the main engaging jaw 24 and the fixing protrusion 15 which are in contact with each other, and the other may be formed with a corresponding attaching / detaching recess 17 . The driven disc 33 and the main disc 32 can be brought into contact with each other to transmit power when the main locking jaw 24 and the fixed protrusion 15 contact each other. The main engagement protrusion 24 and the fixing protrusion 15 can be coupled to each other due to the elastic member 35. However, in order to increase the coupling force and provide a sense of hearing, the main locking protrusion 24 and the fixing protrusion 15, (27) or a detachable groove (17).

The operation of the mixer according to the present invention will now be described.

Referring to Fig. 6 (a), the user first receives the object to be ground in the container 10 and covers the lid 20. Since the engaging portion 23 is formed on the side surface of the lid 20, the engaging portion 23 is engaged with the container 10 so as to face the fixing protrusion 15 formed on the container 10. When the container 10 is covered with the lid 20 and rotated, the fixing protrusion 15 is caught by the guide engaging jaw 26, and the lid 20 can no longer move downward. At this time, since the lead 20 is detachable from the container 10 as long as the user does not press the lid 20, the lid 20 can be detached. In the detached state, the cutter 40 does not receive power from the clutch 30, so that the cutter does not rotate.

6 (b), since the fixing protrusion 15 is located higher than the sub-engaging jaw 25, the user can rotate the lead 20 clockwise (or counterclockwise) So that the rotation is not limited by the rotation angle. However, since the fixing protrusion 15 is located at a lower position than the main locking jaw 24, the main locking jaw 24 can not rotate any more. At this time, the fixing protrusions 15 are positioned on the upper surface of the sub-engaging jaws 25. The sub-engaging jaw 25 and the fixing protrusion 15 are held in the engaged state by the elastic force of the clutch 30. [ However, in the engaged state, the main disk 32 and the driven disk 33 are not coupled to each other so as to transmit power. Therefore, the cutter 40 can not rotate.

6C, the user pushes the lid 20 again in the direction of the container 10 so that the fixing protrusion 15 is positioned higher than the main locking jaw 24 and the lid 20 is rotated . The fixing protrusion 15 faces the upper surface of the main locking jaw 24 and the main locking jaw 24 is kept in engagement with the fixing protrusion 15 due to the elastic force of the clutch 30. [ Further, the fastening force is increased by the attaching / detaching groove 17 and the attaching / detaching protrusion 27, so that the user can easily recognize whether or not the fastening is performed. This state is referred to as the final engagement state.

In this fastened state, the main disk 32 and the driven disk 33 are engaged with each other to transmit power. Accordingly, when a voltage is applied to the driving unit 1 by the user, the cutter 40 rotates to perform the crushing.

On the other hand, the lead 20 may unintentionally rotate due to carelessness of the user or vibrations transmitted to the lid 20. When the lid 20 is rotated and is switched to the fastened state, the cutter 40 loses power and stops rotating as described above. Further, since the lid 20 covers the container 10 in the fastened state, even when the cutter 40 is rotating due to inertia, the object to be crushed can not be scattered to the outside.

After the user recognizes that the rotation of the cutter 40 is stopped, the user may switch again to the tightened state again and perform the grinding again. Further, the lid 20 is further rotated to completely separate the lid 20 from the container 10 And the grinding may be terminated by switching to the removed state.

Therefore, the blender according to the present invention is in a detachment state in which the container 10 is opened without the cutter 40 rotating, the fastening state in which the container 10 is covered by the lid 20 while the cutter 40 is not rotated, (40) rotates and the container (10) is also tightly closed so that safety and cleanliness are increased.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, but, on the contrary, It should be understood that various modifications may be made by those skilled in the art without departing from the spirit and scope of the present invention.

1: driving part 3: base
10: vessel 11: hollow
13: Guide rod 15: Fixing projection
17: detachable groove 20: lead
21: pressing projection 23:
24: Main jaw chin 25: Sub jaw chin
26: guide jaw 27: detachment projection
28: support 30: clutch
31: housing 32:
33: driven disc 34: shaft
35: elastic member 36: engagement projection
37: guide groove 38: guide projection
40: cutter 41: blade
42: inner cylinder 43: outer cylinder
45: opening

Claims (15)

A container in which a fixing protrusion protruding from an outer circumferential surface is formed and in which a grinding object is accommodated;
A blade rotating within the vessel;
A driving unit for generating a rotational force;
A lid which shields the container and has a stepped engaging portion formed with a pressing projection in the direction of rotation axis of the blade and engaged with the fixing projection to be fixed to the container; And
And a clutch that moves in the axial direction by the pressing projection to transmit the rotational force of the driving unit to the blade,
Wherein the engaging portion includes a sub engaging jaw formed at a lower side and a main engaging jaw formed at a position higher than the sub engaging jaw,
Wherein the clutch includes an elastic member that the shaft pushes the pressing projection to fix the upper surface of the engaging portion and the lower surface of the fixing projection,
Wherein the clutch releases power transmission when the fixing projection is in contact with the sub-engaging jaw,
[0027]
And a guide engaging step for guiding the fixing protrusion to the sub-engaging jaw when the lead is coupled to the container,
Wherein one of the main engagement jaw and the fixing protrusion has a detachable protrusion formed on a surface thereof and the other has a detachable recess corresponding to the detachable protrusion. delete The method according to claim 1,
The clutch
A main disk rotated by receiving power from the driving unit;
A driven disc which is in contact with the main disc and rotates by receiving power; And
And a shaft connected to the driven disc, forming a rotation axis, and coaxial with the pressure projection.
The method of claim 3,
Wherein at least one of the main disk and the driven disk has a protrusion protruded for power transmission.
The method of claim 3,
The clutch
And a resilient member for applying a restoring force in the axial direction to the shaft and the driven disc.
The method of claim 3,
Wherein one of the main disk and the driven disk comprises:
Guide grooves are formed for guiding movement of the driven disc so as to form coaxial axes with each other,
And the other is formed with a guide projection corresponding to the guide groove.
The method of claim 3,
The container may include:
And a guide rod formed coaxially with the shaft and formed with a hollow into which the clutch is inserted.
8. The method of claim 7,
An outer cylinder surrounding the guide rod and having the blade disposed therein; And
And a cutter formed on the inside of the outer cylinder and including an inner cylinder into which the shaft is inserted.
9. The method of claim 8,
The press-
And a mixer inserted into the inner cylinder to apply pressure to the shaft.
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