JPS6339011Y2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a knife sharpener, and more specifically to a knife sharpener that has an extremely simple structure and is configured to allow knives to be sharpened extremely easily.

Generally, whetstones were used to sharpen knives and other knives.

However, in order to sharpen a knife using a whetstone, the knife is moistened with water and pressed against the whetstone and reciprocated back and forth. The sharpness differed depending on the degree of contact with the whetstone, requiring skill, and ordinary householders were unable to sharpen it.

The present invention was devised to eliminate the above-mentioned drawbacks of the conventional technology, and provides a knife sharpener with a simple structure that allows knives and other cutlery to be sharpened extremely easily without requiring any skill. The purpose is to

Hereinafter, details of the present invention will be explained based on embodiments shown in the drawings.

The knife sharpening tool 1 according to the present invention includes a pair of left and right sharpening pieces 2 and 3.

As shown in FIG. 2, the sharpening pieces 2 and 3 have exactly the same shape, but are arranged so that one of them is inverted and partially overlapped to face each other.

The sharpening pieces 2 and 3 have slopes 2a at the upper ends of opposing side edges, which are inclined upwardly and outwardly.
3a, and the upper end of the outer peripheral surface has arcuate parts 2b, 3b.
It is becoming.

Therefore, as shown in FIG. 2, if the slopes 2a and 3a are arranged facing each other and overlapping the vicinity of the side edges, the slopes 2a and 3a will form a V-shaped space.

Note that in FIG. 2, the reference numeral d indicates the thickness of the sharpening pieces 2 and 3, and the thickness of each of the sharpening pieces 2 and 3 is the same.

By the way, the material of the sharpening pieces 2 and 3 is a cemented carbide steel material such as tungsten carbide.

The sharpening pieces 2 and 3 having such a structure are attached to separate support plates 4 and 5, respectively.

One support plate 4 is formed of synthetic resin or the like into an isosceles triangular shape as shown in FIG. It's summery.

A protrusion 4b is formed on the side surface of the thick portion 4a in the protruding direction.
There are multiple protruding pieces.

Further, at the apex of this support plate 4, a projecting piece 4c is provided to project at right angles to the opposite side to the projecting direction of the thick wall portion 4a, and this projecting piece 4c has a hole 4 for screwing.
d is formed.

On the other hand, an opening 4e into which the sharpening tool 2 is fitted is formed in a part of the support plate 4, that is, on the bottom side and at a position closer to one side of the bottom.

The width of the opening 4e is approximately the same as the thickness of the abrasive piece 2, and the length thereof is approximately the same as the entire length of the abrasive piece 2.

The opening 4e is formed to be inclined at a predetermined angle toward one side.

The sharpening piece 2 is fitted into this opening 4e,
At this time, the sharpening piece 2 is fitted with the slope 2a facing toward the protruding direction of the thick portion 4a.

On the other hand, the other support plate 5 is constructed as shown in FIG.

That is, as is clear from a comparison with FIG. 3, the support plate 5 has substantially the same shape as the one support plate 4.

The support plate 5 has a substantially isosceles triangular shape like the support plate 4, and has a predetermined width on its base side.
A thick portion 5a is formed extending over the entire length and protruding to one side.

The amount of protrusion of this thick portion 5a is exactly the same as that of the protrusion portion 4a.

This thick portion 5a has protrusions 4b, 4 on the support plate 4 side.
Through-holes 5b, 5b into which b is fitted are formed.

Two protrusions 5c, 5c are provided on the side surface of the protruding side of the thick portion 5a in parallel to the horizontal direction of the through hole 5.
It is formed over a predetermined length with b and 5b sandwiched therebetween. Further, at the apex of this support plate 5, a projecting piece 5d is provided to protrude at right angles to the opposite side to the projecting direction of the thick part 5a, and a screw hole 5e is formed in the projecting piece 5d. There is.

Further, a position close to one side of the bottom of the support plate 5 includes the thick part 5a, and a position substantially close to the opening 4e on the support plate 4 side beyond the thick part. An opening 5f is formed.

The width of this opening 5f is approximately the same as the thickness of the abrasive piece 3, similar to the opening 4e, and its length is approximately the same as the entire length of the abrasive piece 3. This opening 5f
It is also formed to face in the same direction as the opening 4e and to be inclined at the same angle, and the sharpening piece 3 is fitted into the opening 5f. The sharpening piece 3 is fitted with the slope 3a facing toward the protruding direction of the thick portion 5a.

Note that the openings 4e and 5f are formed to be shifted in the longitudinal direction of the bottom by the thickness of the sharpening pieces 2 and 3.

Furthermore, reinforcing ribs 6 are formed on the outside of each of the support plates 4 and 5, with portions of the ribs extending along the sharpening pieces 2 and 3.

With the support plates 4 and 5 configured as described above attached with the grinding pieces 2 and 3, respectively, the support plates 4 and 5 are assembled.
5 are matched.

At this time, the two support plates 4 and 5 are stacked with the protruding side surfaces of the thick portions 4a abutted against each other, and are abutted with the protrusions 4b fitted into the through holes 5b.

When the two support plates 4 and 5 are brought together in this way, the sharpening pieces 2 and 3 have their respective slopes 2a and 3a facing each other, and the thickness of the grinding pieces is They are arranged so that they are shifted back and forth and their side edges are overlapped.

At this time, since the protrusions 5c, 5c are present, as shown in FIG. 5, the thick portions 4a and 5a are spaced apart by a constant distance according to the amount of protrusion of the protrusion 5c.

The knife sharpener 1 formed by stacking the support plates 4 and 5 in this way is fixed to some kind of support base.

In this embodiment, an example is shown in which it is attached to a holder 7 of a knife.

As shown in FIG. 6, the holder 7 includes a storage section 8 formed as a quadrilateral hollow housing, and
It is provided with triangular left and right legs 9, 9 for supporting in an inclined state.

The upper end surface of the storage section 8 is inclined toward the front side, and a plurality of elongated openings 10 are formed in this inclined upper end surface. The length of each opening 10 is long or short, and the length of the opening 10 varies depending on the blade width of the knife.
You can choose one of them.

The knife 11 is supported with its blade 12 inserted into the storage part 8 through the opening 10 and with its handle 13 hooked to the open end of the opening 10.

As shown in FIG. 7, the opening 10 communicates with a groove 14 that has the same width as the opening 10 and is continuously formed in the storage portion 8 to accommodate the blade.

By the way, the knife sharpener 1 is attached using the ridge line portion at the upper end of the holder 7.

That is, as shown in FIG. 8, a cut groove 15 is formed from the ridge line part of the holder 7, and the knife sharpening tool 1 is stored in this part. It is formed in the shape of an isosceles triangle having exactly the same size as the pair of support plates 4 and 5.

Of course, the width of the kerf 15 is also the same as the overall thickness of the knife sharpener 1.

Therefore, when the knife sharpener 1 is housed in the kerf 15, its base overlaps the bottom of the kerf 15, and the oblique side forms the same plane as the front and rear slopes across the ridge line at the upper end of the storage part 8. Stored in good condition.

and protrusions 4c at the upper ends of the left and right support plates 4,5,
5d over the flat cut portion of the ridge line portion, and fix the knife sharpener 1 to the holder 7 by inserting screws 16 into the through holes 4d and 5e.

When fixing the knife sharpening tool 1, the upper ends of the sharpening pieces 2 and 3 attached at an angle as shown in FIG. Install it in an inclined position towards the slope side.

When the knife sharpening tool 1 is fixed in the groove 15 in this manner, the outer edges of the sharpening pieces 2 and 3 are supported in contact with the left and right side surfaces of the groove 15, as shown in FIG. The inner edges of the sharpening pieces 2 and 3 are supported in contact with the side surfaces or protrusions 5c of the thick parts of the supporting plates 4 and 5 on the other side, respectively.
is firmly supported without being able to move.

Next, a method of sharpening a knife using the knife sharpener constructed as described above will be explained.

First, grasp the handle 13 of the knife 11 and insert the base side of the blade 12 between the support plates 4 and 5 as shown in FIG.
The cutting edge is fitted into the V-shaped space formed by the slopes 2a and 3a of the sharpening pieces 2 and 3.

Then, as shown in FIG. 5, the cutting edge comes into contact with the sharpening pieces 2 and 3 at the bottom of the V-shaped space where the slopes 2a and 3a intersect.

In this state, if you pull the knife 11 toward you, the cutting edge of the blade 12 will touch the slope 2 of the sharpening pieces 2 and 3 made of cemented carbide.
It is polished in contact with the intersection of a and 3a.

By repeating this action of pulling toward this side two or three times, the cutting edge can be sharpened.

Since the inclined angles of the slopes 2a and 3a of the sharpening pieces 2 and 3 are determined, the sharpening angle is determined by simply holding the blade 12 vertically and pulling it toward you, and both sides of the blade edge are ground to form a sharp edge. I can do it.

In addition, unlike when sharpening with a whetstone, there is no need to apply water and there is no need to press the blade with your fingertips.The sharpening pieces 2 and 3 are located deep in the grooves that cannot be touched from the outside, so you can use your fingertips. etc. will not be damaged.

If the above-mentioned sharpening operation is performed each time the blade is used before it loses its sharpness, the blade can always be kept sharp.

As is clear from the above description, according to the present invention, it is possible to obtain a knife sharpening tool that has an extremely simple structure and can sharpen the cutting edge by simply pulling the blade toward you several times. .

[Brief explanation of the drawing]

The figure is for explaining one embodiment of the present invention.
The figure is a perspective view, FIG. 2 is a perspective view of the sharpening piece, FIGS. 3 and 4 are perspective views showing left and right support plates, respectively, and FIG. 5 is a sectional view taken along the line A-A in FIG. 1. Figure 6 is a perspective view of the state installed in the holder, Figure 7 is a front view of the state installed in the holder, and Figure 8 is B-- of Figure 7.
It is a sectional view taken along the B line. 1... Knife sharpening tool, 2, 3... Sharpening piece, 2a,
3a...Slope, 4, 5...Support plate, 4a, 5a...
...Thick part, 4b...Protrusion, 4c...Protrusion piece, 4e,
5f...opening, 5b...through hole, 5c...projection,
5d... protrusion, 7... holder, 8... storage section, 1
0...Opening, 11...Knife, 12...Blade, 15
...cut groove.

Claims (1)

[Scope of utility model registration request] A support stand having a groove 15 into which a knife sharpening tool is fitted, a pair of left and right support plates 4 and 5 fitted into the groove 15, and a support plate mounted in an inclined state on each of the support plates 4 and 5. The supporting plates 4, 5 have thick parts 4a, 5a on opposing surfaces of their bases, which protrude a predetermined distance toward the other side, and one thick part 4a has are positioning protrusions 4b, 4b
is provided protrudingly, and the other thick portion 5a has protrusions 4b, 4.
Through-holes 5b, 5b into which the parts b are fitted are formed, and with these through-holes 5b, 5b sandwiched above and below, the thick part 5a
Parallel protrusions 5c, 5c are formed on the side surfaces of the support plates 4, 5, and a sharpening piece 2 is provided along the longitudinal direction of the bottom at the bottom of each support plate 4, 5, and at a position closer to one side of the bottom. , 3 are mutually shifted by the thickness of the supporting plates 4, 3, and are inclined at a predetermined angle including the respective thick portions 4a, 5a. Mounting protrusions 4c and 5d having holes 4d and 5e in the center are formed at the upper end and protrude toward the outside opposite to the protruding direction of the respective thick parts 4a and 5a, and the sharpening pieces 2 ,3
are made of cemented carbide, and slopes 2a, 3a are formed in the upper halves of the side edges facing each other, and are open toward the outside. The thick portions 4a of the support plates 4 and 5 are fitted into the openings 4e and 5f of the respective support plates 4 and 5 with the protrusions 4b fitted into the through holes 5b with the two sides facing each other. , 5a are butted and integrated.