KR102196419B1 - Knife sharpening device - Google Patents

Abstract

The present invention relates to a portable electric knife sharpener, wherein a grinding stone member is fixed on one side and a drill bit is formed on the other side, so that the grinding action is performed in the grinding stone member by the rotational force provided from the electric unit, and the drill bit on the other side The purpose is to maximize the usability of two sets of one stone in which polishing and drilling work is performed through a single drill bit by providing a knife grinder to perform the drilling operation.
The present invention for this purpose, the electric unit 10 for providing a rotational force; And a knife grinding unit 20 configured to be detachable from the electric power unit 10 to perform a polishing action; The knife grinding unit 20 includes a grinding stone member 210 for performing a grinding action; And one end is fixed to the chuck configured in the transmission unit 10, the grinding stone member 210 is configured on one side, is configured to perform a drilling operation while being rotated by the rotational force provided from the transmission unit 10 It characterized in that it includes; drill bit 220;

Description

Portable electric knife sharpening device {Knife sharpening device}

The present invention relates to a portable electric knife sharpener, and more specifically, a grinding stone member is fixed on one side and a drill bit is formed on the other side, and a grinding action is performed in the grinding stone member by a rotational force provided from the electric unit, The present invention relates to a portable electric knife sharpener that maximizes the usability of one stone and two sets of drilling and drilling through one drill bit by providing a knife sharpener for performing drilling work by the drill bit on the other side.

In general, sharpening is a support for sharpening the dull blade by contacting the blade with a grinding stone or a whetstone.

In addition, in order to sharpen the blade with a whetstone, first, the blade is polished by moving the blade up and down to contact one side of the whetstone while the whetstone is inclined upward. In addition, it is difficult for beginners to perform the blade grinding operation.

In order to solve this problem, the Republic of Korea Utility Model Registration No. 20-0345125 and'electric knife grinder' were developed.

The conventional electric knife sharpener is composed of a housing member comprising a mounting table and a cover, and a grinding stone coupled to the interior of the housing member.

The polishing stone coupled to the housing member couples a pair of fixed support pieces to the upper surface of the mounting table, and symmetrically couples a motor on which the polishing stone is installed on the upper surface of the fixed support piece.

In this way, an entry groove is formed in the cover so that the blade or the like can enter between the grinding stones fixedly coupled to the mounting table.

Therefore, the blade that has entered the housing member through the entry groove is capable of erecting the blunt blade using the grinding stone that is rotated by receiving the rotational force of the motor.

However, the problem of the conventional electric knife sharpener is that it is impossible to separate and use only the grinding stone installed inside the housing member.

In other words, conventionally, since the motor with the grinding stone installed inside the housing member is fixedly coupled to form a single knife grinding device, only the motor equipped with the grinding stone cannot be used by separating it from the housing member. There was a problem that the back could not be polished.

Therefore, in order to sharpen blades such as sickles, scissors, etc., which are used by polishing only one side of the blade, a separate sharpening device must be purchased and used, or a grinding stone capable of polishing only one side of the blade must be further installed in the blade sharpening device. .

In addition, since the motor on which the grinding stone is built is fixedly coupled to the inside of the housing member to form a sharpening device, there is a problem that it is not easy to polish only the unpolished part of the blade by using the sharpening device.

In addition, since the conventional housing member does not have a receiving portion provided with a receiving groove for receiving dust generated when the grinding stone is sharpened by a blade, dust is accumulated upwards in the case member, so the interior of the housing member is easy to clean. There was a problem that could not be done.

In addition, the conventional knife sharpener is limited to erecting a blade such as a knife, and thus has a limitation in use.

Republic of Korea Patent Publication No. 10-2017-111659 (published on October 12, 2017) Korean Patent Publication No. 10-1812557 (announced on Dec. 27, 2017) Republic of Korea Utility Model Publication No. 20-485360 (announced on December 28, 2017)

As a proposal to solve the above problems, an object of the present invention is that a grinding stone member is fixed on one side and a drill bit is formed on the other side, so that the grinding action is performed in the grinding stone member by the rotational force provided by the electric power unit. It provides a portable electric knife sharpener that maximizes the usability of one stone and two sets of grinding and drilling through one drill bit by providing a knife sharpener that allows drilling work to be performed by the drill bit on the other side. have.

The present invention for achieving the above object, the electric unit for providing a rotational force; And a sharpening part configured to be detachable from the electric part to perform a polishing action. The sharpening unit grinding stone member for performing a grinding action; And a drill bit having one end fixed to the chuck configured in the electric unit, the grinding stone member on one side, and configured to perform a drilling operation while being rotated by a rotational force provided by the electric unit. do.

In the present invention, the insertion hole is formed in the center of the grinding stone member; It is configured to selectively insert a drill bit or a rotating part into the insertion hole of the grinding stone member; The rotating part is inserted into the insertion hole and one end is fixed to the chuck of the electric motor; A fixing bracket inserted into the end of the rotation shaft to support rotation in place; And a fixing socket in which a seating groove into which one end of the fixing bracket is inserted is inserted, and the one end is fixed to the ground so as to rotate in place.

In the present invention, the grinding stone member comprises: a first grinding stone made of a rough stone having a large particle thickness; It is preferable to include; and a second grinding stone formed in a thinner thickness than the particle thickness of the first grinding stone.

In the present invention, the drill bit includes: a chuck fixing portion having a rectangular cross section so as to be fixed to the chuck of the transmission unit; A grinding wheel fixing part configured on one side of the chuck fixing part to fix the grinding stone member by an adhesive layer; And a perforation unit configured on one side of the grinding wheel to perform a perforation operation by rotational force.

In the present invention, it is preferable to include a crimping member at one end of the fixing socket to maintain a fixed state by crimping to the ground.

In the present invention, it is preferable to include; a crimping fixing part for supporting the grinding stone member to be fixed to a position desired by the user on one side of the drill bit or the rotating part.

In the present invention, the compression fixing unit, the housing configured on the inside of the grinding stone member; And a plurality of wedge members configured at each of the both ends of the housing and providing a pressing force to be fixed to an arbitrary position of the drill bit or the rotating part through a pressing or releasing action of both ends of the housing.

In the present invention, the wedge member includes a conical wedge having a downward slope; And a stepped jaw configured to have a predetermined size at one end of the wedge and supporting the pressing or releasing action to be easily performed by a user. It is preferable to include at least one cutout portion formed in the wedge to a predetermined length so that the pressing action is easily performed.

According to the present invention, the grinding stone member is fixed on one side, and a drill bit is formed on the other side, so that the grinding action is performed in the grinding stone member by the rotational force provided from the electric unit, and the drilling operation is performed by the drill bit on the other side. By providing a sharpening part to be used, there is an effect of maximizing the usability of one stone and two sets of grinding and drilling operations through one drill bit.

1 is a perspective view of a knife grinding device according to a first embodiment of the present invention.
Figure 2 is a cross-sectional view of a knife sharpener according to the first embodiment of the present invention.
Figure 3 is an exploded perspective view of a knife grinding unit according to a second embodiment of the present invention.
Figure 4 is an exploded perspective view of a knife grinding unit according to a third embodiment of the present invention.
Figures 5a to 5c is a state of operation of the compression fixing unit according to the third embodiment of the present invention.

Advantages and features of the present invention, and a method for achieving the same will become apparent with reference to the embodiments described below in detail together with the accompanying drawings.

However, the present invention is not limited to the embodiments disclosed below, but may be implemented in a variety of different forms, only the present embodiments make the disclosure of the present invention complete, and common knowledge in the technical field to which the present invention pertains. It is provided to completely inform the scope of the invention to those who have, and the invention is only defined by the scope of the claims. The same reference numerals refer to the same elements throughout the specification.

Thus, in some embodiments, well-known process steps, well-known structures, and well-known techniques have not been described in detail in order to avoid obscuring interpretation of the present invention.

The terms used in this specification are for describing exemplary embodiments, and are not intended to limit the present invention. In the present specification, the singular form also includes the plural form unless specifically stated in the phrase.

Comprises and/or comprising, as used in the specification, refers to the presence or addition of one or more other components, steps, actions, and/or elements other than the stated elements, steps, actions and/or elements. It is used in a sense not to exclude.

And, “and/or” includes each and every combination of one or more of the recited items.

In addition, embodiments described in the present specification will be described with reference to sectional views and/or schematic diagrams, which are ideal exemplary diagrams of the present invention.

Accordingly, embodiments of the present invention are not limited to the illustrated specific form, but include a change in form generated according to a manufacturing process.

In addition, in each of the drawings shown in the present invention, each component may be somewhat enlarged or reduced in consideration of convenience of description.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

<First embodiment>

As shown in Figs. 1 and 2, the knife grinding device 1 of the first embodiment is configured on one side of the electric unit 10 and the electric unit 10 to provide rotational force through the electric unit 10. It includes a knife grinding unit 20 configured to perform a grinding action capable of erecting the blade while rotating by the rotational force provided.

The electric unit 10 is a means for providing a rotational force to the knife grinding unit 20.

The electric unit 10 is a portable hand drilling machine.

Of course, the present invention is not limited thereto, and any structure or configuration may be used as long as it provides a rotational force to the knife-sharpening part 20 and allows the user to carry and work independently.

The sharpening unit 20 is mounted on one side of the electric unit 10, and uses the rotational force provided by the electric unit 10 so that the blade is erected by a grinding action on the workpiece configured to be in close contact with one side. It is a means.

The sharpening part 20 includes a grinding stone member 210 and a drill bit 220.

The grinding stone member 210 is configured on one side of the drill bit 220 and performs a function of performing a polishing action.

The grinding stone member 210 includes a first grinding stone 212 consisting of a coarse stone having a large particle size, and a second grinding stone 214 consisting of a normal or finished stone having a relatively smaller particle thickness than the first grinding stone 212. ).

Of course, it is not limited thereto, and the grinding stone member 210 may be configured to sequentially consist of a finishing stone, a common stone, and a finishing stone according to the thickness of the particle, and in some cases, the grinding stone is formed with one particle thickness. It can also be formed.

The first and second grindstones 212 and 214 are each configured to be fixed to one side of the drill bit 220, or in the process of manufacturing the grindstone member 210, the first and second grindstones ( 212) 214 may be configured to be integrated.

In addition, the grinding stone member 210 is configured with an adhesive layer 230 to be adhesively fixed to one side of the drill bit 220 by an adhesive.

The adhesive layer 230 may be any composition that provides a fixing force so that the grinding stone member 210 is firmly fixed to one side of the drill bit 220.

In addition, the grinding stone member 210 is formed in an elliptical shape.

Of course, it is not limited thereto, and may be formed in a circular shape.

In addition, the grinding stone member 210 is formed with a hollow portion in the center into which the drill bit 220 can be inserted, by minimizing the weight of the grinding stone member 210, due to the minimized weight of the grinding stone member 210 By minimizing the load applied to the electric unit 10, in the end, the electric unit 10 is protected.

In addition, the grinding stone member 210 is not limited to configuring a separate adhesive layer 230 so that the drill bit 220 is fixed to the center of the grinding stone member 210.

For example, an insertion hole is formed in the center of the grinding stone member 210, and an insertion type bracket is inserted into the insertion hole, so that the grinding stone member 210 is fixed to the outer periphery of the insertion type bracket.

And, by forming an insertion hole through which the drill bit 220 can be inserted in the center of the insert-type bracket, in the end, the drill bit 220 can be inserted in the center of the grinding stone member 210.

Of course, the present invention is not limited thereto, and the configuration is selected and selected in consideration of the purpose of use, demand for use, or convenience of manufacturing.

The drill bit 220 is a grinding stone member 210 is fixed on one side, a perforation is formed on the other side, the grinding action is performed in the grinding stone member 210 by the rotational force provided from the electric unit 10, the other side By allowing the original function of the drilling operation to be performed by the drilling unit of the drill bit 220, the usability of the use of one stone and two sets of drilling and drilling operations performed through one drill bit 220 is maximized.

The drill bit 220 has a chuck fixing part 222 that can be fixed to a chuck configured in the electric part 10, a grinding stone fixing part 224 that fixes the grinding stone member 210, and a perforation operation. It includes a perforation 226 to be performed.

The chuck fixing part 222 is firmly fixed to the chuck of the electric unit 10 and performs a function of firmly transmitting the rotational force provided by the electric unit 10 without slipping.

In this case, the chuck fixing portion 222 is formed in a plane such that the cross section forms a square shape.

Of course, it is not limited thereto, and the chuck fixing part 222 may be any structure or shape capable of exerting a firm fixing force to the chuck of the electric unit 10.

The whetstone fixing portion 224 is configured on one side of the chuck fixing portion 222, and forms an outer surface of the grinding stone member 210 to maintain a firm fixed state to the drill bit 220.

The grinding wheel fixing part 224 is formed in a plane.

In addition, at least one barb 225 is formed in the whetstone fixing part 224 so that the whetstone member 210 maintains a firm fixed state.

Of course, it is not limited thereto, and any structure or shape such that the grinding stone member 210 can be firmly fixed to the grinding stone fixing part 224 may be used.

The barbs 225 may be formed integrally with the outer periphery of the grinding wheel fixing part 224 or separately manufactured to be fixed to the outer periphery of the grinding stone fixing part 224 by welding or the like.

In addition, the grinding wheel fixing portion 224 may be omitted, and a perforation portion 226 may be formed up to the chuck fixing portion 222.

The perforation part 226 is configured on one side of the grindstone fixing part 224 and is configured to perform a perforation operation.

The perforated part 226 is formed in a concrete type, a steel type, or a wood type according to the perforation operation.

Looking at the state of use of the portable electric knife sharpener configured as described above is as follows.

First, after inserting the chuck fixing part 222 formed in the drill bit 220 of the knife cutting part 20 into the chuck configured on one side of the electric part 10, the chuck fixing part 222 is on the plane of the chuck fixing part 222 by tightening the chuck. Thus, the chuck is firmly fixed to the chuck.

Subsequently, when a rotational force is generated in the electric unit 10, the knife grinding unit 20 rotates through the chuck.

Accordingly, the user may selectively perform a grinding operation by the grinding stone member 210 configured in the knife grinding unit 20 or a drilling operation by the drill bit 220 according to the purpose to be worked.

Therefore, the grinding action is performed in the grinding stone member by the rotational force provided by the electric part, and the drilling work, which is the original function, is performed by the drill bit on the other side, whereby the grinding and drilling work is performed through one drill bit. Maximizes the usability of Joe.

<Second Example>

The same reference numerals are used for the same configuration as in the first embodiment, and detailed descriptions thereof will be omitted.

As shown in FIG. 3, the knife grinding unit 20 of the second embodiment is selectively inserted into the grinding stone member 210 and the grinding stone member 210 to be rotated by the rotational force provided through the electric unit 10. It includes a drill bit 220 and a rotating part 240 to be made.

The grinding stone member 210 is composed of first and second grinding stones 212 and 214.

In addition, an insertion hole 216 into which the drill bit 220 or the rotating part 240 is inserted is formed in the center of the grinding stone member 210.

The insertion hole 216 is inserted into the drill bit 220 or the rotating part 240 so that rotation is performed together with the drill bit 220 or the rotating part 240 by a rotational force provided by the electric power part 10. Performs the function of

In this case, it is preferable that the insertion hole 216 has a rectangular cross-sectional shape so that smooth rotation can be achieved due to a firmly fixed state with the drill bit 220 or the rotating part 240.

Of course, the insertion hole 216 is not limited thereto, and any structure or shape that maintains a firm fixed state with the drill bit 220 or the rotating part 240 so that smooth rotation can be achieved may be used. .

The drill bit 220 is configured to perform a drilling operation as in the first embodiment.

The rotating part 240 is inserted into the grinding stone member 210 to transmit the rotational force provided by the electric power section 10 to the grinding stone member 210 so that the grinding action of the grinding stone member 210 is reliably achieved. It performs a supporting function.

That is, the drill bit 220 performs a function of simultaneously drilling and polishing, and the rotation part 240 only performs a polishing operation so that the polishing operation can be firmly performed.

In this case, the user selectively attaches and detaches the drill bit 220 or the rotating part 240 to the grinding stone member 210 according to the purpose of use.

The rotating part 240 is composed of a rotating shaft 242, a fixing bracket 244 and a fixing socket 246.

The rotation shaft 242 is supported so that the chuck of the electric unit 10 is fixed to one side and the fixing bracket 244 is fixed to the other side.

In addition, one side of the rotation shaft 242 is formed in the same or similar shape as the insertion hole 216 of the grinding stone member 210, so that a sliding phenomenon does not occur when the grinding stone member 210 is rotated after being inserted. It is formed in a shape corresponding to the insertion hole 216.

In this case, one side of the rotation shaft 242 is formed in a square shape to correspond to the insertion hole 216 formed in a square shape.

Accordingly, as one side of the rotation shaft 242 is formed in a square shape, the grinding stone member 210 is firmly fixed through the insertion hole 216 and a firmly fixed state with the chuck of the transmission unit 10 is achieved. The rotational force provided by the electric unit 10 is prevented from slipping, so that the rotational force is reliably transmitted.

The fixing bracket 244 is inserted into one end of the rotation shaft 242 and performs a function of supporting the fixing socket 246 to stably rotate in place.

The fixing bracket 244 is composed of a support protrusion 2442 protruding at a certain height at one end and a seating member 2444 formed at a certain size at an end of the support protrusion 2442.

The support protrusion 2442 is inserted at a predetermined depth from one end of the rotation shaft 242 and performs a function of supporting the rotation shaft 242 to smoothly rotate in place.

The seating member 2444 is formed at the end of the support protrusion 2442 and performs a seating function to support the fixing socket 246 so that the rotation shaft 242 can rotate in place smoothly.

In addition, the seating member 2444 is preferably formed of a magnet having a magnetic force to prevent the fixing socket 246 from being arbitrarily separated during rotation.

Of course, the present invention is not limited thereto, and the seating member 2444 may be any structure or configuration capable of smoothly rotating the rotation shaft 242 in place.

The fixing socket 246 functions to smoothly rotate the fixing bracket 244 in place.

The fixing socket 246 includes a mounting groove 2462 formed to a predetermined depth so that the mounting member 2444 can be stably mounted.

In addition, the seating groove 2462 is configured with a self-adhering member for self-adhering to the magnet formed in the seating member 2444.

In some cases, the fixing socket 246 is formed of a metal capable of self-adhering by magnetic force so that self-adherence with the seating member 2444 can be achieved.

In addition, one end of the fixing sucket 246 includes a crimping member 2464 that provides a crimping force to maintain a firm fixed state with the ground.

When the compression member 2464 is in close contact with the ground, the internal air is pushed to the outside to achieve a firm fixed state, and when one side is lifted, the external air is pushed in to offset the internal pressure so that it can fall from the ground. It is made of soft material.

In this case, the crimping member 2464 is commercially referred to as'Kyubang'.

Of course, the present invention is not limited thereto, and any structure or configuration that supports the fixing socket 246 with respect to the ground so as to maintain a fixed state may be used.

In addition, in some cases, the fixing socket 246 may be omitted.

Accordingly, the sharpening unit 20 of the second embodiment performs a polishing or drilling operation by selectively attaching and detaching the drill bit 220 or the rotating unit 240 according to the user's selection.

For example, when using the rotating part 240, the fixing socket 246 is fixed to the ground through a pressing member 2464 or the like.

And, by inserting the insertion hole 216 of the grinding stone member 210 to one side of the rotary shaft 242, to maintain the state in which the grinding stone member 210 is fixed to one side of the rotary shaft 242.

In addition, after fixing the fixing bracket 244 to the other side of the rotating shaft 242, one end of the fixing bracket 244 is inserted into the fixing socket 246 fixed to the ground.

Therefore, the rotational force provided by the electric unit 10 is transmitted to the rotation shaft 242, and at this time, as the fixing bracket 244 inserted into the fixing socket 246 rotates in place, the rotation shaft 242 The grinding action is made through the grinding stone member 210 fixed to one side of the.

Here, the ground is not limited to the ground, for example, the fixing socket 246 may be fixed, as a part in which a grinding action is performed, and includes a comprehensive meaning such as a wall, a sink, and a work table.

<Third Example>

The same reference numerals are used for the same configurations as in the first and second embodiments, and detailed descriptions thereof will be omitted.

As shown in FIG. 4, the sharpening part 20 of the third embodiment includes a grinding stone member 210, a drill bit 220, and a compression fixing part 250.

The grinding stone member 210 is a means for performing a polishing action.

The drill bit 220 is a means for performing a drilling operation.

In addition, the user is configured to selectively select and use the drill bit 220 and the rotating part 240.

The compression fixing part 250 is configured to provide a fixing force so that the grinding stone member 210 can be firmly fixed to one side of the drill bit 220 or the rotating part 240.

The crimping fixing part 250 is a housing 252 fixed to the inner side of the grinding stone member 210 and a plurality of wedge members 254 configured at both ends of the housing 252 so that the crimping force acts according to the insertion depth Includes.

The housing 252 has a grinding stone member 210 is fixed to the outer periphery, and a drill bit 220 or a rotating part 240 is inserted inside, and the drill bit 220 or a rotating part by a plurality of wedges 254 Supports so that the grinding stone member 210 can be firmly fixed at any position of (240).

In this case, a taper having the same or similar slope as that of the wedge member 254 is formed at each of both ends of the housing 252, and the drill bit 220 or the rotating part 240 is formed according to the insertion depth of the wedge member 254. ) By firmly compressing the outer periphery of the) to increase the compression force, it is possible to maintain a firm fixed state to the drill bit 220 or the rotary part 240.

The wedge member 254 is configured at each of both ends of the housing 252 to amplify the fixing force by compression according to the depth of insertion into the housing 252, so that the drill bit 220 or the rotating part 240 It performs a function to ensure that the grinding stone member 210 is firmly fixed to one side of the.

The wedge member 254 includes a wedge 2542 formed in a conical shape and a stepped portion 2544 formed at one end of the wedge 2542 to have a predetermined size.

The wedge 2542 is formed in a conical shape made of a taper having a downward inclination.

In addition, the wedge 2542 is provided with at least one cutout 2543 having a predetermined length to support the clamping force by compression according to the insertion depth of the housing 252 to be amplified.

The stepped jaw 2544 is configured to have a predetermined size at one end of the wedge 2542 so that the user can press or release the wedge member 254 to be smoothly performed.

The operating state of the compression fixing unit of the portable electric knife grinder configured as described above will be described with reference to FIG. 5.

As shown in FIG. 5A, a wedge member 254 is inserted into one side of the drill bit 220.

In this case, the wedge member 254 is positioned on one side of the drill bit 220 in the portion where the grinding stone member 210 is located.

As shown in FIG. 5B, the housing 252 is inserted into the drill bit 220.

At this time, the insertion position of the housing 252 is fixed as one end of the housing 252 is pressed and fixed by a wedge member 254 inserted into the drill bit 220 first.

As shown in Fig. 5c, when the insertion position of the housing 252 is fixed by the first inserted wedge member 254, by inserting the remaining wedge member 254 into the other end of the housing 252, the drill bit The position of the grinding stone member 210 on one side of 220 is maintained in a firmly fixed state.

Accordingly, convenience of use is provided by allowing the user to selectively fix the grinding stone member 210 at a desired position on one side of the drill bit 220 or the rotating part 240.

What has been described above is only one embodiment for implementing the portable electric knife sharpener, and the present invention is not limited to the above embodiment. Those of ordinary skill in the field to which the present invention pertains will appreciate that various modifications can be implemented without departing from the gist of the present invention.

1: knife sharpener 10: electric part
20: knife grinding part 210: grinding stone member
212: first whetstone 214: second whetstone
216: insertion hole 220: drill bit
222: Cheokgo government 224: Whetstone government
226: perforation 230: adhesive layer
240: rotating part 242: rotating shaft
244: fixing bracket 2442: support protrusion
2444: mounting member 246: fixing socket
2462: seating groove 2464: crimping member
250: compression fixing unit 252: housing
254: wedge member 2542: wedge
2543: incision 2544: stepped jaw

Claims (8)

Electric unit 10 for providing a rotational force; And
Includes; a knife grinding unit 20 configured to be detachable from the electric power unit 10 to perform a polishing action,
The knife grinding unit 20 includes a grinding stone member 210 for performing a grinding action, an insertion hole 216 formed in the center of the grinding stone member 210,
It is configured to insert the rotating part 240 into the insertion hole 216 of the grinding stone member 210,
The rotating part 240,
A rotation shaft 242 that is inserted into the insertion hole 216 and has one end fixed to the chuck of the electric unit 10;
A fixing bracket 244 inserted into the end of the rotation shaft 242 to support rotation in place; And
A portable electric knife grinder comprising a; a mounting groove (2462) into which one end of the fixing bracket (244) is inserted, and a fixing socket (246) that is fixed to the ground and rotates in place.
The method according to claim 1,
The fixing bracket 244 includes a support protrusion 2442 protruding at a predetermined height at one end and a seating member 2444 formed at an end of the support protrusion 2442,
The seating member 2444 is formed of a magnet,
The portable electric knife sharpener, characterized in that the seating groove (2462) is configured with a self-seating member that allows self-seating with the seating member (2444).
The method according to claim 1, wherein the grinding stone member 210,
A first grinding stone 212 made of a coarse stone having a large particle thickness; And
A second grinding stone 214 formed in a thickness thinner than the particle thickness of the first grinding stone 212;
Portable electric knife sharpener comprising a.
delete The method of claim 1, wherein at one end of the fixing socket (246),
A crimping member 2464 for maintaining a fixed state by being compressed on the ground;
Portable electric knife sharpener comprising a.
The method according to claim 1,
A compression fixing part 250 for supporting the grinding stone member 210 on one side of the rotating part 240 so that the user can fix it in a desired position;
Portable electric knife sharpener comprising a.
The method of claim 6, wherein the compression fixing part 250,
A housing 252 configured on the inside of the grinding stone member 210; And
A plurality of wedge members 254 configured at each of both ends of the housing 252 to provide a pressing force to be fixed at an arbitrary position of the rotating part 240 by pressing or releasing both ends of the housing 252;
Portable electric knife sharpener comprising a.
The method of claim 7, wherein the wedge member 254,
A conical wedge 2542 having a downward slope; And
And a stepped jaw 2544 configured to have a predetermined size at one end of the wedge 2542 to support the pressing or releasing action to be easily performed by a user;
At least one cutout (2543) is formed in the wedge (2542) to a predetermined length so that the pressing action is easily performed;
Portable electric knife sharpener comprising a.

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