JPH0518044Y2 - - Google Patents

Description

[Detailed description of the invention] Purpose of the invention (field of industrial application) This invention relates to a sharpener for sharpening the blades of kitchen knives, knives, etc.

(Prior Art) Conventionally, as a sharpener for a kitchen knife, etc., an insertion groove is formed on a support frame for inserting a blade such as a kitchen knife and moving it back and forth, and a support frame is formed in correspondence with this insertion groove. There is one in which a grindstone is attached to the groove and the grindstone is inclined at a constant angle with respect to the depth direction of the insertion groove. When using such a sharpener, insert a blade such as a knife into the insertion groove and press the blade against the whetstone while moving the knife back and forth to sharpen the blade. I was gone.

(Problem to be solved by the invention) However, in the above-mentioned sharpener, the sharpening angle of the blade is limited to a certain inclination angle of the whetstone, so it can only be used for knives that have the above-mentioned certain inclination angle. However, there was a problem in that it was necessary to manufacture multiple types of sharpeners with different inclination angles of the whetstones to match deba knives, sashimi knives, etc. with different inclination angles.

Structure of the invention (Means for solving the problem) In order to solve the above problem, this invention has a blade 50.
Movable grindstones 21a, 21 that come into contact with the inclined blade surface 51 of
b is tiltably provided on the sharpening device main body 6, and a biasing member 18 is provided for biasing the movable whetstones 21a, 21b in a direction in which the movable whetstones 21a, 21b are brought into pressure contact with the inclined blade surface 51. A fixed stopper 22 is provided to prevent tilting from a certain position in the counter-biasing direction, and the fixed stopper 2
2, the movable grindstone 21
A structure is adopted in which a movable stopper 34 that prevents the movable grindstones 21a and 21b from tilting in the opposite direction is detachably provided with respect to the movable grindstones 21a and 21b.

(Function) In the sharpener of this invention, the movable grindstone is fixed or unlocked by the movable stopper depending on the angle α of the inclined blade surface of the blade of the knife or the like. That is, when the blade angle α is small, the movable grindstone is fixed, and when the blade angle is larger than the angle α, the movable grindstone is released. In the unlocked state, the blade of a kitchen knife or the like is pressed against the movable whetstone, and the blade is honed by reciprocating while adjusting the inclination angle of the whetstone to match the angle of the inclined blade surface of the blade. The movable grindstone can be tilted until it comes into contact with the fixed stopper. on the other hand,
When the movable stopper is in a fixed state, the inclined blade surface of the blade is simply brought into contact with the whetstone, and the blade is reciprocated and sharpened without changing the contact force.

(Example) An example embodying this invention will be described below with reference to the drawings.

Reference numeral 1 denotes a holder for a sharpening tool, and as shown in FIGS. 1 and 2, a large finger hole 2 is formed in the center for easy grip. Reference numeral 6 denotes a sharpening tool body integrally formed with the holder 1, and particularly includes a bottom wall 7, a top wall 8, a rear side wall 9, and a left side wall 10, as shown in FIGS. As shown in FIGS. 6 and 9, the word "LOCK" 11 is written approximately in the center of the lower surface of the bottom wall 7, and a pair of recesses 12 are provided on the left and right sides thereof. Furthermore, slide holes 7a are transparently provided at the four corners of the bottom wall 7, and slide holes 7b are transparently provided between the left and right slide holes 7a.

In particular, as shown in FIGS. 1 and 2, the upper wall 8 is divided into three parts 8a, 8b, and 8c: a left part, a center, and a right part, and the right end surface of the right upper wall 8c and the holder 1 A recess 8d is formed between the two. Openings 13 are formed in the left and central portions of the upper central walls 8a and 8b, respectively. In particular, as shown in FIG.
A is formed, and the characters 14 for ``Deba'' and ``Sashimi'' are written in two rows at the bottom center of the rear surface. or,
Under the guide recesses 9a and below the letters 11, through holes 9b and 9c are provided, corresponding to the slide holes 7a and 7b of the bottom wall 7, respectively.

As shown in FIGS. 1 and 2, 15 is the bottom wall 7;
The accommodation recesses 16 and 17 surrounded by the upper wall 8 and both side walls 9 and 10 are a pair of left and right support shafts that protrude forward from the lower part of the rear side wall 9 in the accommodation recess 15, and are particularly As shown in FIG. 2, they correspond between the left upper wall 8a and the center upper wall 8b and between the center upper wall 8b and the right upper wall 8c, respectively. In particular, as shown in Figures 1, 2 and 7, 18
2 are coil springs as biasing members mounted on each of the support shafts 16 and 17, each having a protrusion 19 that protrudes upwardly. These protrusions 19 are respectively locked to the left upper wall 8a or the center upper wall 8b.

Reference numerals 21a and 21b are two movable grindstones in the shape of square columns located on each of the support shafts 16 and 17, and each coil spring 18 is installed inside each of them.
A protrusion 19 is inserted from below to above. Both of these movable grindstones 21a and 21b are inclined upward to the left, and can be tilted to the left (in the direction of the arrow in FIG. 2) against the elasticity of each coil spring 18.

Reference numeral 20 denotes a pair of left and right frames that house the pair of movable grindstones 21a, 21b on the support shafts 16, 17, and have the right side surfaces of the movable grindstones 21a, 21b exposed on their respective right side surfaces. Each frame 20 is fixed so as not to be tiltable by a stopper 34 as a movable stopper of the cover 29 when a cover 29, which will be described later, is moved downward.

In this embodiment, the movable grindstone 21a in the left frame 20 is for finishing, and the movable grindstone 21b in the right frame 20 is for rough grinding.

As shown in FIGS. 2 and 8, reference numeral 22 denotes a pair of regulating pieces serving as fixed stoppers protruding forward from the rear wall 9 on the left side of each frame 20, and each frame 20 has a coil spring 18. When this frame 20 tilts to the left against the elasticity of
It is designed to come into contact with the back of the

In particular, as shown in FIGS. 1, 2 and 8, 26a, 2
Reference numeral 6b denotes a pair of fixed whetstones in the shape of a quadrangular prism, which are erected facing the pair of movable whetstones 21a and 21b.
It corresponds to between b. These fixed grindstones 26a,
26b is between the left end of the central upper wall 8b and the supporting portion 25a projecting onto the bottom wall 7 below, and between the left end of the right upper wall 8c and the supporting portion 25b projecting onto the bottom wall 7 below. A shaft 23, which is located between the grinding wheels 26a and 26b and protrudes upward from each of the grindstones 26a and 26b, is locked to the center upper wall 8b and the right upper wall 8c, respectively.

As shown in FIG. 1, 29 is the sharpener main body 6.
The upper wall 31 of the cover covers the upper wall 8 of the sharpener main body 6 so as to be able to move up and down slightly.
The three parts 31a, 31b, 3 on the left, center, and right correspond to the three parts 8a, 8b, 8c.
It is divided into 1c. As shown in FIGS. 1 and 2, 30 is the left upper wall 31a and the center upper wall 31b.
A pair of insertion grooves extending downward between the central upper wall 31b and the right upper wall 31c,
Vertical walls 30a each having a front U-shape on both left and right sides.
It is becoming. These vertical walls 30a are the covers 29
When placed on the sharpener main body 6, it is inserted from above between the left and center upper walls 8a and 8b and between the center and right upper walls 8b and 8c of the sharpener main body 6. 30b
is a window hole transparently provided in each vertical wall 30a, and when the cover 29 is placed on the grinder main body 6, the movable grindstone 2
1a, 21b and fixed grindstones 26a, 26b are exposed in each insertion groove 30. or,
On the upper surface of the central upper wall 31b of the cover 29, a character 31d of "shiage" is written corresponding to the insertion groove 30 on the left side where the finishing whetstones 21a and 26a are exposed, and similarly on the upper surface of the right upper wall 31c, a rough grinding wheel is written. Grinding wheel 21b,
The character 31d of "ARAME" is written corresponding to the insertion groove 30 on the right side where 26b is exposed.

As shown in FIG. 2, reference numeral 32 denotes a pair of guide protrusions protruding from the left and right ends of the inside of the rear wall 29a of the cover 29.
It corresponds to both guide recesses 9a (FIG. 8) on the rear side. Rear side wall 29 below each guide protrusion 32
A pair of positioning protrusions 33 are provided inside the a,
Further, similar positioning projections 33 (FIG. 7) are provided inside the front side wall 29b corresponding to these projections 33.

As shown in FIG. 2, reference numeral 34 denotes a pair of stoppers protruding from the lower surfaces of the left upper wall 31a and the center upper wall 31b of the cover 29.
When the wheels a and 21b are fixed, they are moved down together with the cover 29, and the movable grindstones 21a and 2 are moved down through the frame 20.
It is adapted to engage with the upper end portion of 1b to lock them so that they cannot tilt.

Reference numeral 35 is a window hole transparently provided in the lower part of the rear wall 29a of the cover 29, and is a window hole 35 which is a two-tier letter 14 (upper and lower) written on the rear wall 9 of the sharpener main body 6 (see FIG. 5).
It has become possible to respond selectively to this. The right side wall 29c of the cover 29 is inserted into the recess 8d of the sharpener body 6 when the cover 29 is placed over the sharpener body 6.

In particular, as shown in FIG. 1, 36 is attached to the bottom wall 7 of the sharpener main body 6 from below, and engages with the four positioning protrusions 33 of the cover 29 so that the vertical position thereof can be adjusted. It is a fixing device for fixing, and is movable in the left and right directions with respect to the bottom wall 7. This fixing device 36 includes a rectangular base plate 37 and a pair of left and right latching protrusions that are penetrated by four slide holes 7a of the bottom wall 7 at the four corners of the base plate 37 and protrude upward from the bottom wall 7. Piece 3
8, and a pair of hook portions 39 which are similarly inserted into the slide holes 7b of the bottom wall 7 between the left and right hooking protrusions 38 and protrude upward from the bottom of the bottom wall 7. It should be noted that both of the rear hooking protrusions 38 and the hook portion 39 are engaged in the through holes 9b and 9c of the rear side wall 9.

Attachment protrusions 38c are provided on the outer side of the proximal end of each of the above-mentioned latching protrusions 38, and these attachment protrusions 38
c is engaged with the outer edge of the upper surface of the slide hole 7a in a state in which the locking protrusion 38 is inserted into the slide hole 7a. In addition, in the state in which the latching protrusion 38 is engaged with the slide hole 7a in this way, both the hook portions 39 of the fixing device 36 are attached to the outer edge of the upper surface of both the slide holes 7b of the bottom wall 7 of the sharpener main body 6. The fixing device 36 is attached to the bottom wall 7 by the engagement of the hook portion 39 and the hooking protrusion 38.

A window hole 40 is provided approximately in the center of the board 37, and when the fixing device 36 is moved to the right, characters 11 written on the lower surface of the bottom wall 7 of the sharpener body 6 can be seen through the window hole 40. (Figures 6 and 9) are now visible. In addition, when it moves to the right in this way, the upper and lower engaging protrusions 38a and 38b of the locking protrusion 38 and the positioning protrusion 33 of the cover 29, which will be described later,
are engaged. A pair of finger hook protrusions 41 are provided on the left and right sides of the window hole 40 on the lower surface of the bottom wall 7, and the fixing device 36 can be attached by hooking fingers on the protrusions 41.
can be moved left and right. Further, a pair of convex portions 4 are provided on the upper surface of both left and right ends of the substrate 37.
2 is provided, and each convex portion 42 is fitted into a recess 12 on the lower surface of the bottom wall 7 of the sharpener main body 6, and the fixing device 36
positioning.

In particular, as shown in FIGS. 1 and 7, the fixing device 3
A pair of upper and lower engagement protrusions 38a and 38b are provided on the outside of each of the locking protrusions 38 of 6, and these engagement protrusions 3
8a and 38b are configured to removably engage with four positioning protrusions 33 inside the cover 29. These upper and lower engaging protrusions 38a, 38
The upper engagement protrusion 38a is a large protrusion with a high height, and the lower engagement protrusion 38b is a hemispherical protrusion that is lower in height and can be easily climbed over by the positioning protrusion 33 of the cover 29 to move up and down. It is a small protrusion.

Now, when using the sharpener configured as described above, the blade of a kitchen knife or the like is sharpened with the cover 29 placed over the sharpener main body 6.

When the cover 29 is attached, the fixing device 3
6 is in a position moved to the right with respect to the bottom wall 7 of the sharpener main body 6, and the four positioning projections 33 inside the cover 29 are located at the lower edge of the four lower engagement projections 38b of the fixing device 36. engaged. In addition, in such an installed state of the cover 29, the cover 29
Both inner stoppers 34 are inserted into both openings 13 from above the upper wall 8 of the sharpener main body 6, and are engaged with the upper ends of each movable grindstone 21a, 21b. Therefore,
These grindstones 21a and 21b are held at a constant position with a small inclination angle. At this time, the window hole 35 of the cover 29 corresponds to the character 14 of "Sashimi" on the rear wall 9 of the sharpener body 6. or,
Each convex portion 42 of the fixing device 36 is fitted into a recess 12 on the right side of the lower surface of the bottom wall 7, and the word "LOCK" 11 is visible through the window hole 40 of the fixing device 36.

The knife to be sharpened in this state is, as shown in FIG. 3, a knife such as a sashimi knife in which the angle α of the inclined blade surface 51 of the blade 50 is small. When sharpening this knife, hold the holder 1 with your hand, and first use the movable whetstone 2 for rough sharpening.
The blade 50 is inserted into the insertion groove 30 where the fixed grindstone 26b and the fixed grindstone 26b are exposed from the window hole 30b, and the inclined blade surface 51 is brought into contact with the pair of movable grindstones 21b and moved back and forth. After that, similarly finishing grindstones 21a, 26
The blade 50 is inserted into the insertion groove 30 on the a side, and the blade is similarly sharpened using these grindstones 21a and 26a.

When increasing the inclination angle of the movable grindstones 21a and 21b, their fixed state is released. To release the fixation, place the cover 29 on the sharpener body 6 and pull it upward. Then, the positioning protrusion 33 inside the cover 29 climbs over the lower engagement protrusion 38b on the locking protrusion 38 of the fixing device 36, and the cover 2
9 is moved upward (as shown by the two-dot chain line in FIG. 7), and the positioning projection 33 is locked to the lower surface of the upper engagement projection 38a. Note that when the cover 29 is moved upward in this way, the locking protrusions 38 at the front and rear portions of the fixing device 36 are slightly bent in the direction of approaching each other. When the cover 29 is moved upward, both stoppers 34 are also moved upward, and the fixation of the movable grindstones 21a and 21b is released.
At this time, the character 14 of the sharpening tool main body 6 "Deba" appears in the window hole 35 of the cover 29.

In this state, both movable whetstones 21a and 21b can be tilted against the elasticity of the coil spring 18 to the position where they abut against the regulating piece 22, so they can sharpen knives such as Deba knives whose inclined blade surfaces 51 have a large inclination angle. You can When sharpening the blade 50 of the Deba knife, the blade 50 is sharpened between the movable whetstones 21a and 21b and the fixed whetstone 26.
a, 26b and forcefully press downward between the movable grindstones 21a, 21b to tilt them until they abut against the regulating piece 22. Then, in this state, the angle formed by the movable whetstones 21a, 21b and the fixed whetstones 26a, 26b matches the inclination angle of the blade surface 51 of the Deba knife, so that the blade can be sharpened easily.

Note that if you do not press the blade 50 firmly downwards,
It is possible to sharpen a knife having an intermediate blade surface angle between a small angle α of the inclined blade surface 51 and a large one such as a Deba knife. During such use, the knife is moved back and forth while adjusting the pressing force against the blade 50 so that the inclination angle of the movable grindstones 21a, 21b matches the angle of the inclined blade surface 51 of the blade 50.

When cleaning the inside of the sharpener body 6, remove the cover 2.
Remove 9. When removing, first remove the fixing device 3.
Hook your finger on the finger hook protrusion 41 of No. 6 and attach it to the fixing device 36.
to the left in Figure 9 (to the position indicated by the two-dot chain line). Then, the positioning protrusion 33 of the cover 29 and the upper engagement protrusion 38a or the lower engagement protrusion 38 of the fixing device 36
b is disengaged, and the cover 29 is moved straight up and removed from the sharpener body 6. At this time, the guide protrusion 32 on the inside of the cover 29 fits into the guide recess 9a on the rear side of the sharpener main body 6. Further, after the fixing device 36 is moved, the character "LOCK" 11 on the bottom wall 7 of the sharpener body 6 is covered by the base plate 37 of the fixing device 36 and becomes invisible.

After cleaning, the cover 29 is placed over the sharpener main body 6 with the fixing device 36 left in the left position, and then the fixing device 36 is moved to the right by hooking the finger on the finger hook protrusion 41. Then, the positioning protrusion 33 of the cover 29 is again engaged with the lower engagement protrusion 38b of the fixing device 36, and the cover 29 is irremovably fixed to the sharpener body 6. At this time, the fixing device 36
The word "LOCK" 11 on the bottom wall 7 can be seen through the window hole 40.
become visible. In this case as well, the guide protrusion 32 of the cover 29 is fitted into the guide recess 9a of the sharpener main body 6.

This invention is not limited to the above embodiment, and for example, the fixed grindstones 26a and 26b may be changed to movable grindstones similar to the movable grindstones 21a and 21b,
The shape of the grindstones 21a, 21b, 26a, and 26b may be changed to a cylindrical shape other than a quadrangular prism or an arbitrary prismatic shape.

Effects of the Device As detailed above, this device uses a movable stopper that allows the movable grindstone to be tilted according to the angle of the inclined blade surface of the blade of the knife being sharpened, until it comes into contact with the fixed stopper. It can be easily fixed at a fixed position with a small inclination angle, even if it cannot be tilted.
In addition, when the fixation is released, the inclination angle of the movable grindstone can be adjusted to match the angle of the inclined blade surface.

[Brief explanation of the drawing]

Fig. 1 is an exploded perspective view showing an embodiment of the sharpener of this invention, Fig. 2 is an exploded front sectional view thereof, Fig. 3 is a partial sectional view of the cutting blade, and Fig. 4 is a side view of the sharpener. Figure 5 is a front view of the rear wall of the sharpener body, Figure 6 is a bottom view of the bottom wall of the sharpener body, and Figure 7 is A--A in Figure 2.
A sectional view taken along the line A; FIG. 8 is a sectional view taken along the line B-B in FIG. 2;
FIG. 9 is a bottom view of the abrasive, and FIG. 10 is a plan view of the abrasive. Sharpener body...6, coil spring...18, movable grindstone...21a, 21b, regulating piece as a fixed stopper...22, stopper as a movable stopper...34, blade...50, inclined blade surface... ...51.

Claims (1)

[Claims for Utility Model Registration] 1. Movable grindstone 2 that contacts the inclined blade surface 51 of the blade 50
1a, 21b are tiltably provided on the sharpening device main body 6, and a biasing member 18 is provided for biasing the movable grindstones 21a, 21b in a direction in which the movable grindstones 21a, 21b are pressed against the inclined blade surface 51.
A fixed stopper 22 is provided to prevent the movable grindstones 21a and 21b from tilting in the counter-biasing direction from a fixed position, and a fixed stopper 22 is provided to prevent the movable grindstones 21a and 21b from tilting in the counter-biasing direction from the fixed stopper 22 in the biasing direction. A sharpener for knives, etc., characterized in that a movable stopper 34 for blocking is provided in a manner that can be engaged with and detached from movable grindstones 21a and 21b. 2 The movable grindstones 21a, 21b are a pair of grindstones 21a, 21b, 26A, 2 located on both sides of the blade 50.
6, and the stopper 34 is provided on a cover 29 that covers the sharpener main body 6 from above. 3 The stopper 34 is provided to protrude inside the cover 29, and is moved together with the cover 29 when the movable grindstones 21a and 21b are fixed.
A sharpener for a kitchen knife, etc., according to claim 2, which is adapted to be able to engage with the upper end portions of the blades a and 21b. 4 A fixing device 36 is movably attached to the bottom wall 7 of the sharpener body 6 to engage with a part of the cover 29 and fix it in a vertically adjustable manner. A sharpener for knives, etc., as set forth in claim 3 of the utility model registration claim. 5 The fixing device 36 includes a plurality of latching protrusions 38 that protrude upward from the bottom wall 7, and each latching protrusion 3
The kitchen knife according to claim 4 of the utility model registration claim, comprising a pair of upper and lower engagement protrusions 38a and 38b that protrude outside the cover 29 and removably engage with the positioning protrusion 33 inside the cover 29. etc. sharpening tool. 6 A pair of upper and lower engagement protrusions 38 of each latching protrusion 38
Of the upper engaging protrusions 38a and 38b, the upper engaging protrusion 38a is a large protrusion with a high height, and the lower engaging protrusion 38b is a small protrusion that is lower in height and can be easily climbed over by the positioning protrusion 33 of the cover 29 to move up and down. A sharpener for a kitchen knife, etc., as set forth in claim 5 of the utility model registration claim, which is a protrusion. 7. A sharpener for knives, etc., as set forth in claim 1, wherein the sharpener main body 6 is integrally molded with the holder 1.