Knife sharpener capable of adjusting two sharpening blades simultaneously

Abstract

The present invention relates to a knife sharpener capable of adjusting two sharpening blades simultaneously, comprising: an outer case unit (100) having an inner space unit (101); a pair of screw units (200) coupled by means of a screw shaft (201) and having different directions; a pair of fixtures (300) in which the pair of screw units (200) coupled by means of the screw shaft (201) are assembled at the lower end thereof and a pair of sharpening blades (400) are fixedly coupled at the upper end thereof; and a handle unit (500) coupled to one side of the screw units (200), wherein, by rotating the handle unit (500) exposed to the outside of the outer case (100) in one direction, the sharpening blades (400) can be adjusted simultaneous ly according to the type of knife such that the gap therebetween is adjusted simultaneously, such that the grinding efficiency is increased and the competitiveness is enhanced while protecting the environment through cost reduction and resource conservation.

Description

Knife sharpener with two blades adjusted simultaneously

[0001] The present invention relates to a knife sharpener in which two sharpening blades are adjusted simultaneously,

[0002] This relates to a knife sharpener in which two sharpening blades are adjusted simultaneously to sharpen a knife blade by adjusting the gap between the sharpening blades when the blade becomes dull.

[0003] When a blade becomes dull, it is sharpened using various types of sharpeners. Patent No. 10-2016-0083306 discloses a sharpening device comprising two grinding plates having opposing inclined grinding surfaces on the upper side, and the lower ends of the opposing inclined grinding surfaces each have a valley in the vertical direction, and the valleys formed at the lower ends of each opposing inclined grinding surface are formed to be offset from each other at the lower ends of the opposing inclined grinding surfaces, so that a protrusion at the lower end of one inclined grinding surface is immersed in the valley at the lower end of the other inclined grinding surface, thereby suggesting a sharpening device that prevents the blade from becoming dull even when removing burrs by simultaneously sharpening the blade. However, the distance between the opposing grinding surfaces is fixed, and there is an inconvenience in that the distance cannot be adjusted depending on the blade.

[0004] In addition, in the pressure-fixed knife sharpening device of application number 20-2012-0001143, a device was invented in which one grinding blade is fixed and the other is movable to create multiple contact points, but since only one grinding blade moves, there was a problem in that the contact point moved left, right, up, and down, moving away from the center of the body, which could cause an accident during grinding.

[0005] In order to improve the above inconvenience, the present invention relates to a knife sharpener in which two grinding blades are adjusted simultaneously, and in which the gap between two grinding blades facing each other with a V-shaped groove in between, into which the knives are inserted, can be adjusted simultaneously as needed.

[0006]

[0007] The present invention relates to a knife sharpener in which two sharpening blades are adjusted simultaneously,

[0008] By turning the handle installed on one side of the knife sharpener to the left or right, two grinding blades are simultaneously adjusted, and the gap between the opposing grinding blades can be simultaneously adjusted, thereby providing a knife sharpener with two grinding blades that can be simultaneously adjusted.

[0009] In addition, the present invention seeks to provide a knife sharpener in which two grinding blades are simultaneously adjusted so that a grinding blade fixing member to which the grinding blade is fixed can be easily assembled to a screw.

[0010] To solve the above problem,

[0011] The present invention comprises a pair of fixing members having a polishing blade attached to the upper portion and a spiral fastening portion formed at the lower portion; a pair of screw portions having screw threads formed in different directions; and a screw coupled to the center of the pair of screw portions to couple the pair of screw portions.

[0012] A handle part connected to one side of a pair of screw parts coupled to the screw shaft; and an external case part capable of fixing a pair of screw parts coupled through a pair of fixing members and the screw shaft to its internal space; It is composed of a screw shaft coupled to an axial space formed at the bottom by a pair of fixtures, and the left and right screw portions are assembled to the spiral fastening portions formed at the bottom of each fixture, and then a pair of fixtures and a pair of screw portions assembled thereto are firmly fixed to the inner space of the outer case portion, and a pair of grinding blades forming a V-groove are exposed to the outside through an open exposure portion at the top of the outer case portion, and a handle portion is assembled so as to be operable on one of the screw portions exposed on the outer side by penetrating the outer case portion, so that when this is rotated, a pair of screw portions rotate at the same time, and at this time, due to the screw threads of the screw portions in different directions, the gap between the fixtures to which the grinding blades are coupled can be narrowed or widened at the same time, thereby solving the problem by providing a sharpener in which two grinding blades in which the gap between the grinding blades can be adjusted can be adjusted at the same time.

[0013] The present invention relates to a knife sharpener in which two sharpening blades are adjusted simultaneously,

[0014] The assembly process of the product can be optimized by allowing a pair of screws to be fitted into an open semicircular spiral joint formed at the bottom of the fixture, and furthermore, by rotating the handle exposed to the outside of the outer case in one direction, the gap between the grinding blades can be adjusted simultaneously depending on the type of knife, thereby generating multiple contact points, thereby improving grinding efficiency and competitiveness, and there is an advantage in that it can protect the environment through cost reduction and resource conservation.

[0015] Figure 1 is an external cross-sectional view of a knife sharpener in which two sharpening blades are adjusted simultaneously.

[0016] Figure 2 is a general view of the outer case of a knife sharpener in which two sharpening blades are adjusted simultaneously.

[0017] Figure 3 is an exploded perspective view of the screw and fixture of a knife sharpener in which two sharpening blades are adjusted simultaneously.

[0018] Figure 4 is a perspective view of the screw portion and fixture of a knife sharpener in which two sharpening blades are adjusted simultaneously.

[0019] Figure 5 is a cross-sectional view of a knife sharpener with two blades adjusted simultaneously.

[0020] Figure 6 is a diagram showing the implementation of a knife sharpening process in which two sharpening blades are adjusted simultaneously.

[0021] The present invention relates to a knife sharpener in which two grinding blades are simultaneously adjusted, and is composed of an outer case (100) having a large inner space (101); a pair of screw parts (200) connected by a screw shaft (201) and having screw threads of different directions formed thereon; a pair of fixing members (300) in which a pair of screw parts connected by the screw shaft are assembled at the lower end thereof and a pair of grinding blades (400) are fixedly connected at the upper end thereof; and a handle part (500) connected to one side of the screw part.

[0022] The present invention relates to a sharpener in which two grinding blades (400) are simultaneously adjusted, wherein a pair of fixtures (300) to which a pair of grinding blades (400) are combined and a pair of screw portions (200) assembled to the fixtures are inserted into and fixedly installed in an internal space (101) of the external case portion (100), and the pair of grinding blades (400) can be exposed through an open exposure portion (102) at the top of the external case portion, and one side of the screw portion is exposed to the outside through a screw-through portion (10) of the external case portion, and then a handle portion (500) is fixedly coupled thereto, and by rotating the handle portion, the pair of screw portions (200) are simultaneously rotated, thereby adjusting the gap between the pair of grinding blades (400) forming a V-shaped groove.

[0023] Below, we will explain in more detail with reference to the attached drawings.

[0024] Prior to this, terms and words used in this specification and claims should not be interpreted as limited to their usual or dictionary meanings, and should be interpreted as meanings and concepts that conform to the technical idea of ​​the present invention based on the principle that the inventor can appropriately define the concept of the term in order to explain his or her own invention in the best way.

[0025] Accordingly, the embodiments described in this specification and the configurations illustrated in the drawings are only the most preferred embodiments of the present invention and do not represent all of the technical ideas of the present invention, and it should be understood that there may be various equivalents and modified examples that can be replaced at the time of filing this application.

[0026] The present invention relates to a knife sharpener in which two grinding blades are simultaneously adjusted, and is composed of an outer case (100) having a large inner space (101); a pair of screw parts (200) connected by a screw shaft (201) and having screw threads of different directions formed thereon; a pair of fixing members (300) in which a pair of screw parts connected by the screw shaft are assembled at the lower end thereof and a pair of grinding blades (400) are fixedly connected at the upper end thereof; and a handle part (500) connected to one side of the screw part.

[0027] The present invention relates to a sharpener in which two grinding blades (400) are simultaneously adjusted, wherein a pair of fixtures (300) to which a pair of grinding blades (400) are combined and a pair of screw portions (200) assembled to the fixtures are inserted into and fixedly installed in an internal space (101) of the external case portion (100), and the pair of grinding blades (400) can be exposed through an open exposure portion (102) at the top of the external case portion, and one side of the screw portion is exposed to the outside through a screw-through portion (10) of the external case portion, and then a handle portion (500) is fixedly coupled thereto, and by rotating the handle portion, the pair of screw portions (200) are simultaneously rotated, thereby adjusting the gap between the pair of grinding blades (400) forming a V-shaped groove.

[0028] More specifically,

[0029] The above outer case portion (100) is composed of an inner space portion (101); an open exposure portion (102); and a screw penetration portion (103) formed on one side.

[0030] Above, a pair of screw parts (200) are formed with screw threads in different directions, and a pair of screw parts can be combined by a screw shaft (201).

[0031] The above pair of fixtures (300) are manufactured in an inclined shape so that their upper ends can form a V-shaped groove, and their lower ends are formed with a semicircular open spiral fastening portion (301).

[0032] Each grinding blade (400) is combined to form a V-shape, like the V-shaped groove formed by a pair of the fixing members (300), at the inclined upper end of the above-mentioned fixture (300).

[0033] A pair of screw parts connected through a screw shaft can be fitted into a semicircular open spiral joint of each of the screw parts after the screw shaft is positioned in the shaft space (302) formed by the fixture, and a grinding blade is fixedly connected to each of the upper ends of the fixtures and then installed in the inner space of the outer case part, one side of the screw part is exposed through a screw penetration part formed in the outer case part and then fixedly connected to the handle part, and the grinding blade is exposed through an open exposure part formed in the outer case part.

[0034] In addition, a pair of screw parts connected by a screw shaft are fixed in the inner space of the outer case part, and as illustrated in FIG. 3, they can be fitted into the spiral fastening part of a pair of fixtures, and the fixed part can be supported primarily by the inner wall of the inner space part so that the screw part does not come off from the fixture, and if necessary, both ends of the screw part fitted into the spiral fastening part can penetrate the partition support part (104) formed in the inner space part, thereby secondarily firmly connecting the screw part so that it does not come off from the fixed part or the inner space part.

[0035] As an example,

[0036] A pair of screw portions (200) having screw threads formed in different directions are combined using a screw shaft (201), and the combined pair of screw portions are fitted into an open semicircular spiral fastening portion (301) at the bottom of each fixture, and a pair of fixtures are assembled into each screw portion to form a V-shaped groove at the top thereof, and a grinding blade (400) that is fixedly coupled thereto also forms a V-shaped groove. The combined grinding blade, screw portion, and fixing portion are installed in the inner space of the outer case, and, if necessary, a partition support portion (104) formed in the inner space allows for a stable fit between the screw portion and the spiral fastening portion of the fixing portion, and one side of the screw portion is installed by penetrating the screw penetration portion (103) on one side of the outer case, and a handle portion is fixedly coupled to one side of the exposed screw portion, so that the rotation of the screw portion can be manipulated. That is, as shown in FIG. 6, when the handle part is rotated to the left or right, the screw part fitted into the fixture rotates, and since the threads of each screw part are formed in opposite directions, when the handle part is rotated to one side, the fixture moves simultaneously, so that the gap between the fixtures can narrow or widen, and the gap between a pair of grinding blades fixedly coupled to the upper part of the fixture also narrows or widens, and the grinding blades coupled to the fixture form a V-shaped groove, so that when the gap between a pair of grinding blades gets closer, the two grinding blades can pass each other, creating multiple contact points (401) that can grind the blade. Since this does not move left and right but only up and down, the V-shaped grinding blade exposed through the open exposure part of the outer case part does not deviate from the center of the outer case part, so that it is safe, allows the knife sharpener to be used for a long time, has high grinding efficiency, and contributes to environmental protection through resource conservation and cost reduction.

[0037] As described above, the present invention has been described with specific details such as specific components and limited embodiments and drawings, but these are provided only to help a more general understanding of the present invention, and the present invention is not limited to the above embodiments, and those with ordinary knowledge in the field to which the present invention pertains can make various modifications and variations from this description.

[0038] Therefore, the idea of ​​the present invention should not be limited to the described embodiments, and all things that are equivalent or equivalent to the claims described below as well as the claims are considered to fall within the scope of the present invention.

[0039] Description of the symbol

[0040] 100. External case

[0041] 101. Interior space

[0042] 102. Open exposure area

[0043] 103. Screw penetration

[0044] 104. Compartment support

[0045] 200. Screw

[0046] 201. Screw shaft

[0047] 300. Fixture

[0048] 301. Spiral joint

[0049] 302. Axial space

[0050] 400. Sharpening blade

[0051] 401. Contact point

[0052] 500. Handle

Claims

1. In a knife sharpener in which two sharpening blades are adjusted simultaneously, an outer case (100) having an inner space (101), an open exposure (102), and a screw penetration (103) formed on one side; a pair of screw portions (200) in which screw threads of different directions are formed by a screw shaft; a pair of fixtures (300) in which the upper end is manufactured in an inclined shape so as to form a V-shaped groove, and a lower end is formed with a semicircular open spiral fastening portion (301); A sharpener for simultaneously adjusting two grinding blades, comprising: a pair of grinding blades (400) each coupled to the inclined upper end of the fixture (300); wherein a pair of screw portions coupled through a screw shaft are positioned in an axial space (302) formed by the fixture, and then the screw portions are fitted into a semicircular open spiral fastening portion of each fixture, and grinding blades are respectively fixedly coupled to the upper end of the fixture and then installed in the inner space of the outer case portion, one side of the screw portion is exposed through a screw-through portion formed in the outer case portion and then fixedly coupled to a handle portion, and the grinding blades are exposed through an open exposure portion formed in the outer case portion, and when the handle portion is rotated in one direction, the gap between the pair of fixtures becomes closer or farther apart, so that the pair of grinding blades pass each other to form a V-shaped contact point, and when the distance between the grinding blades becomes closer, the contact point is at the upper end, and when the distance between the grinding blades becomes farther apart, the contact point is created at the lower end, so that a plurality of contact points can be provided.

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