KR20160023426A - Assembling Structure of Electric Mixer Body shaft and Cutter - Google Patents

Abstract

The present invention relates to a coupling structure of a driving shaft and a pulverizing cutter of an electric mixer. In the coupling structure of the pulverizing cutter which pulverizes an object by being coupled to the driving shaft provided with rotation force transferred from an electric motor in a lower end in a container of the mixer, the driving shaft has a supporting groove formed in a middle part on an external circumferential surface of a body thereof formed in a cylindrical shape to support the pulverizing cutter; and a supporting projection part is formed on an upper side on an external circumferential surface of the driving shaft to support a dehydration container and a peeling device. By means of the coupling structure of the driving shaft and the pulverizing cutter of an electric mixer according to the present invention, the supporting groove for supporting the pulverizing cutter is formed in a middle part on the external circumferential surface of the driving shaft provided with rotation force transferred from an electric motor in a lower end in a container of the mixer, and a supporting projection part is separately formed in an upper side on the external circumferential surface of the driving shaft to support the dehydration container and the peeling device. Accordingly, the pulverizing cutter, the dehydration container, and the peeling device are selectively replaced when needed, so an object may be pulverized, dehydrated, and peeled.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an electric mixer,

The present invention relates to a coupling structure of a driving shaft and a crushing cutter of an electric mixer, and more particularly, to a coupling structure of a driving shaft and a crushing cutter of an electric mixer, And more particularly, to a fastening structure of a driving shaft and a pulverizing cutter of an electric mixer capable of ensuring stability in performance.

Generally, a mixer is a transmission device comprising a container (cup) in which an object is placed and a body in which an electric motor is housed. The container (cup) is made of hard heat-resistant glass, synthetic resin or stainless steel, And the electric motor accommodated in the body rotates at a high speed of about 10,000 to 20,000 rpm to be used for cutting and crushing fruits, vegetables and other objects, It has been widely used in general households for juicing objects.

As an example of such a blender, Japanese Patent Laid-Open No. 10-2014-0042236 has been proposed. The present invention relates to a blender interchangeable blender for easy removal and attachment, and more particularly, to a blender interchangeable blender having a motor shaft formed at an upper end of a key; A connecting rod formed on an upper portion of an inner circumferential surface of the key groove and fitted with the key so as to maintain axial engagement with the motor shaft, the first connecting groove being formed on the outer circumferential surface; And a lower plate coupled to the lower end of the connecting rod and having a second locking protrusion formed on an outer circumferential surface thereof; And a first engagement protrusion inserted into the first engagement groove is formed on the inner circumferential surface so as to maintain axial engagement with the connection member; And a blade fixing unit coupled to the lower end of the rotary shaft and having a second fastening groove for receiving the second fastening protrusion while receiving the lower plate. According to this structure, it is possible to very easily perform the engagement and disengagement of the blade unit with respect to the connecting member by using the first engaging groove of the geometric shape formed in the connecting member and the first engaging projection formed on the blade unit, And a blade unit having a first engaging projection and a second engaging recess engageable with the first engaging projection and the second engaging projection, respectively, and a more rigid rotation operation of the blade unit And it is possible to reduce the vibration and noise phenomenon caused thereby.

However, the blender proposed in the above-mentioned patent is a structure that can prevent the blade unit from coming off, but it only functions to cut and crush fruits and vegetables, and can remove moisture of the crushed food, It is difficult to provide a dewatering function and a peeling function. Therefore, the use of the blender is limited.

SUMMARY OF THE INVENTION Accordingly, the present invention has been made keeping in mind the above problems occurring in the prior art, and it is an object of the present invention to provide a grinding cutter for cutting and crushing objects such as fruits and vegetables, as well as a dehydrator and a peeler, And an object of the present invention is to provide a fastening structure of a driving shaft and a pulverizing cutter of an electric mixer which enables safe use of each function while being used in a replacement state.

According to an aspect of the present invention,

A coupling structure of a crushing cutter for crushing an object by being coupled to a driving shaft that receives a rotational force of the electric motor at a lower end of a container of a blender, the driving shaft comprising: a support groove for supporting a crushing cutter in the middle of the outer periphery of a cylindrical body; And the support shaft is formed on the outer circumferential surface of the drive shaft so as to support the dehydrating and / or pulverizing device. The coupling structure of the drive shaft and the crushing cutter of the electric mixer is provided.

At this time, the drive shaft is formed narrowly from the upper side to the lower side from the outer circumferential surface of the body of the drive shaft so that the support protrusions of the crushing cutter are guided to the support grooves, thereby forming guide grooves for guiding the support protrusions, A supporting protrusion is formed on the other side of the guide groove in a direction opposite to the rotation direction of the drive shaft and the dehydrating and peeling device is supported, And a support groove in which the support protrusion of the crushing cutter is supported is formed horizontally in a direction opposite to the rotation direction of the drive shaft.

Particularly, inclined release preventing tapers are formed on both sides of the lower ends of the guide grooves.

The grinding cutter has a structure in which the rotary blade is integrally coupled to the fixing body. The fixing body has a lower end opened to form a fitting hole into which the driving shaft is inserted, And protrusions are formed.

At this time, a horizontal protrusion is formed at a lower end of the driving shaft along a rim, and a second support protrusion is formed at a lower end of the fitting hole of the grinding cutter.

In addition, the dehydrator may be formed at the center of the bottom of the dehydrator so as to be axially coupled to the driving shaft of the container, and the bottom of the dehydrator may be opened to form a fitting hole into which the driving shaft is inserted, And a first protrusion supported is formed.

In addition, the peeling machine includes a thin skin having an uneven surface formed on an outer circumferential surface of a circular body, a coupling portion formed at a lower end center of the body, a fitting hole having a lower end opened to insert the driving shaft, And a second protrusion supported by the support protrusion is formed in the fitting hole.

According to the fastening structure of the driving shaft and the crushing cutter of the electric mixer according to the present invention, a support groove for supporting the crushing cutter is formed in the middle of the outer circumferential surface of the drive shaft receiving the rotational force of the electric motor at the lower end of the inner side of the mixer container, A supporting stone portion on which the passing peeling machine is supported can be separately formed and the function of grinding, dehydrating and peeling the object can be used by selectively replacing the grinding cutter, the dewatering tube and the peeling machine as necessary.

Particularly, according to the present invention, the support groove and the support protrusion are separately formed in the drive shaft according to the function characteristics of the grinding cutter, the dewatering tube and the puller, so that the grinding cutter, the dewatering tube, It is possible to minimize the damage to the drive shaft, thereby minimizing damage to the drive shaft.

1 is a perspective view of an electric mixer for illustrating a fastening structure of a driving shaft and a crushing cutter according to the present invention.
2 is a cross-sectional view of an electric mixer for illustrating a fastening structure of a drive shaft and a crushing cutter according to the present invention.
3 is an exploded perspective view illustrating a coupling structure of a driving shaft and a pulverizing cutter according to the present invention.
4 is a front cross-sectional view illustrating a fastening structure of a drive shaft and a crushing cutter according to the present invention.
5 is a plan sectional view for explaining the fastening structure of the drive shaft and the crushing cutter according to the present invention.
6 is a perspective view of an electric mixer shown for explaining a fastening structure of a drive shaft and a dewatering container according to the present invention.
7 is a cross-sectional view of an electric mixer for illustrating a fastening structure of a drive shaft and a dewatering container according to the present invention.
8 is a front sectional view for illustrating a coupling structure of a driving shaft and a dewatering cylinder according to the present invention.
9 is a plan sectional view for explaining a fastening structure of a drive shaft and a dewatering tube according to the present invention.
10 is a perspective view of an electric mixer shown for explaining a fastening structure of a driving shaft and a puller according to the present invention.
11 is a cross-sectional view of an electric mixer for illustrating a fastening structure of a drive shaft and a puller according to the present invention.
12 is a front cross-sectional view illustrating a fastening structure of a drive shaft and a puller according to the present invention.
13 is a plan sectional view for explaining a fastening structure of a driving shaft and a puller according to the present invention.

Hereinafter, the fastening structure of the driving shaft and the crushing cutter of the electric mixer according to the present invention will be described in detail with reference to the accompanying drawings.

1 to 13, a blender 1 having a fastening structure for a driving shaft and a crushing cutter according to the present invention comprises a crushing cutter 1 for cutting and crushing (hereinafter referred to as " crushing ") an object such as fruits and vegetables, The dewatering cylinder 300 and the puller 400 for selectively performing water removal or peeling functions as well as the water purifier 200 can be selectively and simply replaced.

The mixer 1 includes a main body 100 having an electric motor 10 inside and an operation panel 20 for controlling the electric motor 10 coupled to an external front surface of the main body 100; A container 120 detachably coupled to an upper end of the main body 100 and having a drive shaft 110 coupled to a lower end of the main body 100 to receive a rotational force of the motor 10; And a container lid 130 which is fastened to the upper end of the container 120 to prevent the object from being discharged to the outside.

At this time, the driving shaft 110 is provided with a crushing cutter 200 for crushing the object by rotating using the rotating force of the electric motor 10, a dehydrating cylinder 300 for dehydrating the water contained in the object by centrifugal action, The peeler 400 is selectively coupled.

The main body 100 is provided with an electric motor 10 inside and the electric motor 10 is connected to the main body 100 through the power transmitting portion 12 coupled to the upper center of the main body 100, To the container 120 which is detachably attached to the upper part of the container. The front surface of the main body 100 is provided with an operation panel 20 for selecting functions to crush, dehydrate, and peel the object by using the blender 1 and controlling the electric motor 10 in correspondence thereto.

The control panel 20 includes a key operation unit for selecting a function and a control unit for controlling the electric motor 10. The control unit includes a microcomputer with a built-in memory, and controls the electric motor 10 by a control unit, Performs any one of the functions of grinding, dehydrating and peeling.

At this time, the key operation unit includes a crushing button, a dewatering button and a peeling button for selecting crushing, dehydrating, and peeling, a time setting button for setting a time for driving the electric motor 10, An operation button, and the like.

It is preferable that the operation panel 20 is provided with a display unit for displaying the control state of the electric motor 10. [ In addition, the control unit may include a power switch on one side of the main body 100, which receives supply power through a power plug (not shown) and can connect or disconnect power supplied to the control unit.

The container 120 is formed of a cylindrical cup and is formed with a transparent window 121 on one side thereof and is made of a synthetic resin material or a stainless steel material, And a driving shaft 110 connected to the electric motor 10 and coupled to the driving shaft 110 is coupled to the lower end of the container 120. Of course, the crushing cutter 200, the dehydrating cylinder 300, and the puller 400 are selectively coupled to the drive shaft 110 to crush, dehydrate, or peel the object.

The lower end of the driving shaft 110 is engaged with the power transmitting portion 12 coupled to the upper center of the main body 100 in a gear manner so that the rotational force of the motor 10 is transmitted to the driving shaft 110 .

The container lid 130 is provided to prevent an object from being scattered or discharged to the outside of the container 120 during crushing, dewatering or peeling of the object. The container lid 130 is made of synthetic resin or stainless steel So as to be fitted to the shape of the upper end of the container 120.

The drive shaft 110 for selectively coupling the crushing cutter 200, the dewatering cylinder 300 and the puller 400 in the mixer 1 is crushed in the middle of the outer peripheral surface of the cylindrical body 111, A support groove 112 for supporting the cutter 200 is formed and a dewatering cylinder 300 and a support protrusion 116 for supporting the puller 400 are formed on the outer circumferential surface of the drive shaft, 200, the dewatering tub 300 and the puller 400 may be selectively replaced to crush, dehydrate, or peel the object.

Hereinafter, the fastening structure of the drive shaft and the crushing cutter of the electric mixer according to the present invention will be described in detail.

1 to 5, the grinding cutter 200 has a structure in which the rotary blade 210 is integrally coupled to the fixing body 220 by a fastening means 230 such as a screw. The fixing member 220 is formed with a fitting hole 222 through which the lower end of the fixing member 220 is inserted and into which the driving shaft 110 is inserted. The fitting hole 222 is formed with a first supporting protrusion (224) is formed. In this case, more than one pair of the support grooves 112 and the support protrusions 224 may be formed to correspond to each other.

A horizontal protrusion 113 is formed at a lower end of the driving shaft 110 along the rim and a locking recess 114 is formed at a lower end of the fitting hole 222 of the breaking cutter 200. [ A second support protrusion 223 is formed. In this case, more than one pair of the engagement grooves 114 and the second support protrusions 223 may be formed to correspond to each other.

The support grooves 112 and the engagement grooves 114 may be disposed at intervals of 90 degrees around the drive shaft.

The driving shaft 110 is narrowly formed from the upper side to the lower side of the outer circumferential surface of the body of the driving shaft 110 so that the first supporting protrusions 224 can be smoothly guided into the supporting grooves 112, A supporting groove 112 is formed at the lower end of the inclined guide groove 117 to support the supporting protrusion 224 in the rotational direction of the driving shaft 110 As shown in Fig.

The inclined guide groove 117 is formed at one side with a slanting protrusion 118 inclined from the upper side to the lower side in the rotating direction of the drive shaft 110 and is formed at the other side in a direction opposite to the rotating direction of the drive shaft 110 A support protrusion 116 is formed vertically from the upper side to the lower side.

At the lower ends of the slant guide grooves 117 are formed slanting release preventing tails 119a and 119b so that the support protrusions 224 of the grinding cutter 200 are moved to and supported by the support grooves 112, The breakage cutter 200 is prevented from being floated by the release preventing tangs 119a and 119b when rotating due to the inertia when the breaker 200 is rapidly stopped after the breakage of the breaker 200 is performed at a high speed, The grinding of the object using the grinding wheel 200 can be repeatedly performed.

Of course, the second support protrusions 223 of the grinding cutter 200 are supported in the engaging grooves 114 formed along the rim of the horizontal protrusion 113 formed at the lower end of the drive shaft 110 so that the grinding cutter 200 And is stably supported.

6 to 9, a dewatering container 300 is supported on a support protrusion 116 forming the guide groove 117.

The dehydrator 300 is provided to separate the object from the solids and liquid by a centrifugal action using the rotational force of the electric motor 10 and to remove or drink the separated liquid. A plurality of drainage holes 301 for discharging moisture of an object (food, herbal medicine) to be dewatered on the outer circumferential surface, respectively, or a wire net made of a metal material is manufactured into a cylindrical housing, So that moisture can be discharged smoothly.

The dewatering cylinder 300 is formed at the center of the lower end of the dewatering cylinder 300 so as to be axially coupled to the driving shaft 110 of the container 120. The coupling portion 310 is formed in correspondence with the shape of the driving shaft 110, do. The coupling part 310 is formed with a fitting hole 312 through which the driving shaft 110 is inserted so that a lower end of the coupling part 310 is supported. The first protrusion 314 is formed. In this case, one or more pairs of the support protrusions 116 and the first protrusions 314 may be formed to correspond to each other.

The dewatering cylinder 300 has an upper end and a dewatering cylinder lid 320 for preventing the object from being discharged to the outside during rotation of the dewatering cylinder 300 is formed corresponding to the upper shape of the dewatering cylinder 300, do.

In order to prevent the dewatering vessel 300 from floating when the electric motor 10 is suddenly braked, a metal bushing 132 made in the shape of a circular ring is fixedly coupled to an inner center of the container lid 130 And a fixing shaft 322 axially coupled to the metal bushing 132 is formed at an upper center of the dewatering tub cap 120. When the dewatering tub 300 is rotated to dewater the object (food, herbal medicine) The dewatering cylinder 300 is prevented from rotating eccentrically through the mutual coupling action of the metal bushing 132 and the fixed shaft 322 so that the dewatering cylinder 300 is not separated from the container 120.

10 to 13, the puller 400 can be selectively supported on the support protrusions 116 forming the guide grooves 117, as well as the dewatering tub 300.

In order to remove the outer surface of garlic or the like using the rotating force of the electric motor 10, the puller 400 is provided with a concave / convex surface on the outer circumferential surface of the circular body 410 and a thin skin 420 made of a silicon material Respectively.

In order to be axially coupled to the driving shaft 110 of the container 120, the puller 400 is fixedly coupled to the lower end of the body 410 by fitting the coupling part 430 to the shape of the driving shaft 110 . The coupling portion 430 is formed with a fitting hole 432 through which the driving shaft 110 is inserted and a second projection portion 432 is formed on the fitting hole 432, 434 are formed. In this case, more than one pair of the depression supporting protrusions 116 and the second protrusions 434 may be formed to correspond to each other.

The puller 400 has a fixing shaft 440 at the upper end of the body 410 so that the puller 400 can be stably rotated at the upper end of the puller 400, To the metal bushing 132 formed in a ring shape. Accordingly, eccentric rotation of the dewatering cylinder 300 is prevented by the mutual coupling action of the metal bushing 132 and the fixed shaft 440, thereby preventing the puller 400 from eccentrically rotating in the vessel 120.

Hereinafter, a driving example of the electric mixer according to the present invention will be described with reference to FIGS. 1 to 13. FIG.

First, when the object is to be crushed, the drive shaft 110 is inserted into the insert hole 222 of the fixture 220 of the crushing cutter 200 on the drive shaft 110 of the container 120, And guided along the groove 117 to be supported in the support groove 112 at the lower end of the inclined guide groove 117.

In this state, when the key operation unit of the operation panel 20 is operated, the drive shaft 110 rotates to crush the object. Thereafter, when the electric motor 10 is suddenly stopped, the breaker cutter 200 is prevented from floating by the separation preventing tines 119a and 119b even if the breaker cutter 200 rotates due to inertia.

When the object is dewatered, the driving shaft 110 of the container 120 is provided with the supporting protrusion 116 forming the guide groove 117 of the dewatering container 300, And supports the first protrusion 314 formed in the fitting hole 312. The dewatering vessel 300 is axially coupled to the metal bushing 132 by a fixing shaft 322 formed at the upper center of the dewatering vessel lid 320 provided at the upper end to prevent the dewatering vessel 300 from eccentrically rotating The dehydration of the object can be performed in a state in which the dehydration tub 300 is not separated from the container 120.

When the puller 400 is to be used, the driving shaft 110 of the container 120 is inserted into the fitting hole 432 of the coupling part 430 formed at the lower end of the puller body 410, Is supported by the second protruding portion 434. The fixing shaft 440 provided at the upper end of the body of the stirrer 400 is axially coupled to the metal bushing 132 to prevent the stirrer 400 from eccentrically rotating so that the stirrer 400 rotates The outer shell of the object can be removed without being detached.

While the present invention has been described in connection with what is presently considered to be practical exemplary embodiments, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, It will be understood by those skilled in the art that various changes, modifications, and alterations can be made by those skilled in the art.

1: Mixer 10: Electric motor
12: Grinding cutter support groove 100:
110: drive shaft 112: support groove
114: latching groove 116:
119a and 119b:
200: Grinding cutter 210: Rotating blade
220: Fixture 222:
224: Support protrusion 300: Dewatering container
310: engaging portion 312:
314: first protrusion 400:
410: body 420: thin skin
430: engaging portion 432:
434: second protrusion

Claims (7)

A fastening structure of a crushing cutter (200) for crushing an object by being fastened to a drive shaft (110) which receives the rotational force of the electric motor (10) at a lower end inside a container (120) of a blender (1)
The driving shaft 110 is formed with a support groove 112 for supporting the crushing cutter 200 in the middle of the outer circumferential surface of the cylindrical body 111 and is provided with a dehydrator 300, 400) is formed on the upper surface of the support shaft (116). The fastening structure of the drive shaft and the crushing cutter of the electric mixer.
The method according to claim 1,
The driving shaft 110 is narrowly formed downward from the upper side of the outer circumferential surface of the driving shaft 110 so that the supporting protrusions 224 of the pulverizing cutter 200 are guided to the supporting grooves 112, A guiding groove 117 for guiding is formed,
The guide groove 117 is formed at one side with a slanting protrusion 118 that slopes from the upper side to the lower side in the rotating direction of the drive shaft 110 and is provided at the other side in a direction opposite to the rotating direction of the drive shaft 110 And a supporting protrusion 116 for supporting the pulverizer 400 is formed at a lower end of the guide groove 117. The supporting protrusion 224 of the pulverizing cutter 200 is supported at a lower end of the guide groove 117, (112) is formed horizontally in a direction opposite to a rotating direction of the driving shaft (110).
3. The method of claim 2,
Wherein the guide groove (117) is formed with inclined separation preventing tails (119a, 119b) on both sides of the lower end of the guide groove (117).
3. The method of claim 2,
The grinding cutter 200 has a structure in which the rotary blade 210 is integrally coupled to the fixing body 220,
The fixing member 220 is formed with a fitting hole 222 through which the lower end of the fixing member 220 is inserted and into which the driving shaft 110 is inserted. The fitting hole 222 has a support protrusion 224 fitted into the supporting groove 112 Wherein the driving shaft and the crushing cutter are coupled to each other.
5. The method of claim 4,
A horizontal protrusion 113 is formed at a lower end of the driving shaft 110 along a rim and a lower protrusion 113 is formed at a lower end of the fitting hole 222 of the breaking cutter 200 And the second support protrusions (223) are further formed on the second support protrusions (223).
3. The method of claim 2,
The dewatering container 300 is formed with a coupling portion 310 at the lower center of the dewatering container 300 to be axially coupled to the driving shaft 110 of the container 120,
The fitting portion 310 is formed with a fitting hole 312 through which the driving shaft 110 is inserted. The fitting hole 312 has a first protrusion 314 supported by the supporting protrusion 116, Wherein the driving shaft and the crushing cutter of the electric mixer are coupled to each other.
3. The method of claim 2,
The puller 400 has a thin skin 420 on which an uneven surface is formed on an outer circumferential surface of a circular body 410. A coupling portion 430 is formed at a lower center of the body 410,
The fitting portion 430 is formed with a fitting hole 432 through which the driving shaft 110 is inserted and a second projection portion 434 is formed on the fitting hole 432, Wherein the driving shaft and the crushing cutter of the electric mixer are coupled to each other.

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