Up and down moving type mixer

Abstract

The present invention provides a vertical moving mixer including a housing that forms an exterior, a first motor including a first shaft having a hollow portion and disposed inside the housing, a second shaft that is disposed slidably penetrating the hollow portion of the first shaft and rotates coaxially with the first shaft, an actuator that is disposed inside the housing and applies a driving force for sliding the second shaft, and a clutch that is disposed at one end of the second shaft and rotates coaxially with the first shaft.

Description

[Technical Field]

[0001] The present invention relates to a mixer having an improved structure in which the blades inside the container can rotate while reciprocating up and down. [Background technology]

[0002] Generally, a blender is an electrically powered device that chops, juices, mixes, cuts, or grinds (hereinafter collectively referred to as "grinding" for the sake of convenience) foods such as fruits, vegetables, and grains into various forms for consumption.

[0003] Basically, the mixer may comprise a motor housing incorporating a motor, a container for containing food, which is coupled to the motor housing and provided with blades to which the rotational force of the motor is transmitted, and a lid for opening and closing the top end of the container. The blades arranged inside such a container may be mounted on a rotating shaft of a blade bundle.

[0004] As a prior art related to such blade bundles, Patent Document 1: Korean Patent Publication No. 10-1469100 (Publication Date: December 4, 2014) discloses a "Rotary Shaft Bundle for Mounting Mixer Rotary Blades," and the invention related to this is well disclosed in the registered patent publication, so a detailed description thereof will be omitted.

[0005] However, the above-mentioned conventional technology has the following problems. Conventional mixer blades, including those in the Korean Patent Publication No. 10-1469100, are fixed blades that simply rotate in place to crush food.

[0006] Therefore, such conventional mixers require higher rotation speeds than necessary to achieve the required grinding performance, which often results in an overload on the motor, but no technology has yet been developed to solve this problem. [Prior art documents] [Patent documents]

[0007] [Patent Document 1] Korean Patent Registration No. 10-1469100 Summary of the Invention [Problem to be solved by the invention]

[0008] The present invention has been made to solve the above problems, and its object is to provide a vertically moving mixer having an improved structure in which the blades can move linearly up and down. [Means for solving the problem]

[0009] In order to achieve the above object, the present invention provides a vertically moving mixer including a housing that forms an exterior, a first motor including a first shaft having a hollow portion and disposed inside the housing, a second shaft that is slidably disposed to pass through the hollow portion of the first shaft and rotates coaxially with the first shaft, an actuator that is disposed inside the housing and applies a driving force for sliding the second shaft, and a clutch that is disposed at one end of the second shaft and rotates coaxially with the first shaft.

[0010] The housing may also include a mounting groove recessed in an upper surface thereof, and a central hole formed in the center of the mounting groove.

[0011] The central hole may be formed with a diameter corresponding to the clutch, and the clutch may be disposed so as to protrude toward the mounting groove.

[0012] The second shaft may be formed so that a cross section perpendicular to the rotation axis has a polygonal shape.

[0013] The gear may further include bushings disposed between the first shaft and the second shaft, and disposed above and below the first shaft to transmit the rotational force of the first shaft to the second shaft.

[0014] The first shaft and the second shaft may be made of different materials.

[0015] The actuator may also include a second motor including a third shaft and disposed in the housing, and a cam disposed on the third shaft and rotating coaxially with the third shaft and disposed at the other end of the second shaft.

[0016] The actuator may also include a second motor including a third shaft and disposed in the housing; a first link having one end disposed on the third shaft and co-rotating therewith; and a second link having one end hingedly connected to the other end of the first link and the other end hingedly connected to or in contact with the other end of the second shaft.

[0017] The cleaning device may further include a container including a partition wall that separates an upper space from a lower space, and a blade portion that is rotatably arranged within the container and to which rotational force and sliding driving force are transmitted from the clutch.

[0018] The blade portion may also include a fourth shaft whose lower end is detachable from the clutch and whose upper end is positioned in the upper space of the container, a blade fixed to the upper end of the fourth shaft and rotating therewith, and an elastic portion that provides a restoring force to move the fourth shaft toward the housing. [Effects of the Invention]

[0019] The present invention having the above-mentioned configuration has the advantage that the blade that crushes the food can rotate while simultaneously moving back and forth in a linear motion up and down, thereby significantly improving the efficiency of mixing and blending food compared to conventional technology (fixed rotary blade technology) that simply crushes food while rotating in a fixed position.

[0020] In addition, the present invention has the effect of significantly improving the food mixing and blending efficiency compared to existing mixers with fixed blades, even if the motor rotation speed (rpm) is the same, thereby enabling food to be crushed more quickly and uniformly.

[0021] Furthermore, the present invention has the advantage that even if the rotation speed of the mixer is reduced, the mixing effect can be maintained at the same level as that of a conventional mixer having fixed blades, and the noise of the mixer can be reduced. [Brief explanation of the drawings]

[0022] [Figure 1] 1 is a side cross-sectional view of a vertical moving type mixer according to an embodiment of the present invention. [Figure 2] 4 is a state diagram showing a state in which the blade portion, the clutch, and the second shaft are displaced to the top dead center by driving the actuator according to the first embodiment of the present invention. FIG. [Figure 3] 4 is a state diagram showing a state in which the blade portion, the clutch, and the second shaft are displaced to the bottom dead center by driving the actuator according to the first embodiment of the present invention. FIG. [Figure 4] FIG. 10 is a schematic diagram showing a state in which the second shaft is displaced to the top dead center by driving the actuator according to the second embodiment of the present invention. [Figure 5] FIG. 10 is a schematic diagram showing a state in which the second shaft is displaced to the bottom dead center by driving the actuator according to the second embodiment of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0023] Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. Unless otherwise defined, all terms in this specification have the same ordinary meaning as understood by one of ordinary skill in the art to which this invention pertains, and in the event that a term used in this specification conflicts with the ordinary meaning of the term, the definition used in this specification shall prevail. Meanwhile, the invention described below is merely intended to describe an embodiment of the present invention and is not intended to limit the scope of the present invention, and the same reference numerals used throughout the specification refer to the same components.

[0024] FIG. 1 is a side cross-sectional view of a vertically moving mixer according to an embodiment of the present invention, FIG. 2 is a state diagram showing a state in which the blade portion, clutch, and second shaft are displaced to the top dead center by driving the actuator according to the first embodiment of the present invention, and FIG. 3 is a state diagram showing a state in which the blade portion, clutch, and second shaft are displaced to the bottom dead center by driving the actuator according to the first embodiment of the present invention.

[0025] FIG. 4 is a schematic state diagram showing a state in which the second shaft is displaced to top dead center by driving the actuator according to the second embodiment of the present invention, and FIG. 5 is a schematic state diagram showing a state in which the second shaft is displaced to bottom dead center by driving the actuator according to the second embodiment of the present invention. 1 to 5, the up-and-down moving type mixer according to the embodiment of the present invention can be roughly divided into a main body 100, a container 200, and a blade part 300.

[0026] The main body 100 is large enough to accommodate the container 200 and may include a housing 110, a first motor 120, a second shaft 130, an actuator 140, a clutch 150, and / or a bushing 160. The housing 110 may form the exterior of the main body 100 and may include a mounting groove 111 recessed on the top surface and a central hole 112 formed in the center of the mounting groove 111 .

[0027] Here, the mounting groove 111 can be fitted with the lower end of a container 200 described later, and the central hole 112 is formed with a diameter corresponding to the clutch 150 described later, so that the clutch 150 can be slidably disposed therein. The first motor 120 may include a first shaft 121 having a hollow portion and may be disposed inside the housing 110 .

[0028] Specifically, the first motor 120 may be fixed to the lower side of the bottom surface of the mounting groove 111 so that the first shaft 121 is positioned at the center of the housing 110.

[0029] The second shaft 130 is slidably disposed to pass through the hollow portion of the first shaft 121 and can rotate coaxially with the first shaft 121. Here, "sliding" may refer to movement in the direction of the rotation axis of the first shaft 121. Also, the second shaft 130 may be formed so that a cross section perpendicular to the rotation axis has a polygonal shape, for example, a square shape.

[0030] In this case, in order to effectively transmit the rotational force of the first shaft 121 and guide the linear motion during sliding, bushings 160 may be further included, which are disposed between the first shaft 121 and the second shaft 130 and are disposed respectively on the upper and lower sides of the first shaft 121 to transmit the rotational force of the first shaft 121 to the second shaft 130.

[0031] In addition, in consideration of the durability and slidability of the second shaft 130, the first shaft 121 and the second shaft 130 may be formed of different materials, for example, the first shaft 121 may be formed of a copper material and the second shaft 130 may be formed of a stainless steel material. The actuator 140 is disposed inside the housing 110 and can provide a driving force for sliding the second shaft 130 .

[0032] 1 to 3, the actuator 140 according to the first embodiment of the present invention may include a second motor 141 including a third shaft 142 and disposed in the housing 110, and a cam 143 disposed on the third shaft 142, rotating coaxially with the third shaft 142, and disposed at the other end of the second shaft 130.

[0033] The cam 143 has a generally streamlined structure, and is therefore capable of displacing the second shaft 130 when it rotates in contact with the other end of the second shaft 130 .

[0034] That is, as shown in FIG. 2, the rotation of the cam 143 can displace the second shaft 130, the clutch 150, and the blade portion 300 to the top dead center, and as shown in FIG. 3, the rotation of the cam 143 and the restoring force of the elastic portion 330 can displace the second shaft 130, the clutch 150, and the blade portion 300 to the bottom dead center.

[0035] 4 and 5, the actuator 140 according to the second embodiment of the present invention may include a second motor 141 including a third shaft 142 and disposed in the housing 110, a first link 144 having one end disposed on the third shaft 142 and rotating therewith, and a second link 145 having one end hingedly connected to the other end of the first link 144 and the other end hingedly connected to or abutting the other end of the second shaft 130. The rotation of the first link 144 causes a displacement difference in the second link 145, which allows the second shaft 130 to be displaced.

[0036] Although the embodiment of such an actuator 140 has been described as having two structures, it is not limited to these, and any structure that can realize the sliding of the second shaft 130 can be adopted. The clutch 150 is disposed at one end of the second shaft 130 and can rotate in unison with the second shaft 130, and a fourth shaft 310 of the blade unit 300, which will be described later, can be detachably attached thereto.

[0037] In addition, the clutch 150 may be arranged to protrude in the direction of the mounting groove 111, and a sealing structure may be further included between the mounting groove 113 and the clutch 150 to prevent foreign matter from entering the housing 110.

[0038] The container 200 may include a partition wall 210 that separates an upper space 201 and a lower space 202 , and the upper space 201 accommodates materials to be crushed, while the lower space 202 may be accommodated in a mounting groove of the housing 110 . The container 200 may further include a lid 220 that can be opened and closed to accommodate food in the upper space 201 .

[0039] The blade unit 300 is rotatably disposed in the container 200 and can receive rotational force and sliding driving force from the clutch 150 . The blade unit 300 may include a fourth shaft 310 , a blade 320 and an elastic portion 330 . The fourth shaft 310 may have a lower end detachably attached to the clutch 150 and an upper end disposed in the upper space of the container 200 .

[0040] The blade 320 may be a single blade 320 or a plurality of blades 320, and is fixed to the upper end of the fourth shaft 310 so as to rotate together with the fourth shaft 310. The elastic part 330 may provide a restoring force that moves the fourth shaft 310 toward the housing 110 .

[0041] For example, the elastic part 330 may include an elastic part bracket arranged to surround a portion of the fourth shaft 310 below the partition wall 210, and a coil spring arranged to surround the outer surface of the fourth shaft 310 inside the elastic part bracket.

[0042] The restoring force of the elastic part 330 prevents the fourth shaft 310 from descending at a slower speed than the clutch 150 due to crushed materials or other circumstances when the fourth shaft 310 starts to descend after reaching the top dead center (the highest position of the sliding movement), thereby preventing the fourth shaft 310 from coming off the clutch 150.

[0043] In the present invention, the movement of the second shaft 130, which receives both the rotational force of the first motor 120 shaft and the driving force for the sliding of the actuator 140, is transmitted to the fourth shaft 310 of the blade unit 300 via the clutch 150, thereby achieving the effect of significantly improving the efficiency of mixing and blending food compared to the conventional technology (fixed rotary blade technology) that simply grinds food by rotating at a fixed position.

[0044] In addition, the present invention has the effect of significantly improving the food mixing and blending efficiency compared to existing mixers with fixed blades, even if the motor rotation speed (rpm) is the same, thereby enabling food to be crushed more quickly and uniformly.

[0045] Furthermore, the present invention has the advantage that even if the rotation speed of the mixer is reduced, the mixing effect can be maintained at the same level as that of a conventional mixer having fixed blades, and the noise of the mixer can be reduced.

[0046] From the above description, it will be apparent to those skilled in the art that various changes and modifications can be made without departing from the technical spirit of the present invention, and the technical scope of the present invention is not limited to the description of the embodiments, but is defined by the claims and their equivalents.

Claims

1. a housing that forms the exterior; a first motor including a first shaft having a hollow portion formed therein and disposed inside the housing; a second shaft that is slidably disposed through the hollow portion of the first shaft and rotates coaxially with the first shaft; an actuator disposed inside the housing and applying a driving force for sliding the second shaft; a clutch disposed at one end of the second shaft and rotating in unison with the second shaft; a blade portion rotatably disposed in the container and receiving a rotational force and a driving force for sliding from the clutch; Including, The housing includes a mounting groove recessed in an upper surface thereof and a central hole formed in the center of the mounting groove, The central hole is formed with a diameter corresponding to the clutch, and the clutch is disposed so as to protrude toward the mounting groove. A vertical moving type mixer.

2. The second shaft is formed so that a cross section perpendicular to the rotation axis has a polygonal shape. The vertical moving type mixer according to claim 1.

3. The gearbox further includes bushings disposed between the first shaft and the second shaft, and disposed above and below the first shaft to transmit a rotational force of the first shaft to the second shaft. The vertical moving type mixer according to claim 2.

4. The first shaft and the second shaft are made of different materials. The vertical moving type mixer according to claim 1.

5. The actuator is a second motor including a third shaft and disposed in the housing; a cam disposed on the third shaft and corotating with the third shaft, and disposed at the other end of the second shaft. The vertical moving type mixer according to claim 1.

6. The actuator is a second motor including a third shaft and disposed in the housing; a first link having one end disposed on the third shaft and rotating therewith; a second link having one end hingedly connected to the other end of the first link and the other end hingedly connected to or in contact with the other end of the second shaft; The vertical moving type mixer according to claim 1.

7. The container is provided with a partition wall that separates an upper space from a lower space. The vertical moving type mixer according to claim 1.

8. The blade portion is a fourth shaft having a lower end detachable from the clutch and an upper end disposed in the upper space of the container; a blade fixed to an upper end of the fourth shaft and rotating in unison with the fourth shaft; an elastic portion that applies a restoring force that moves the fourth shaft toward the housing. The vertical moving type mixer according to claim 7.

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