JP6883610B2 - Cutlery sharpener - Google Patents

Description

The present invention relates to a knife sharpener for sharpening knives such as kitchen knives and knives.

As a device for sharpening knives such as kitchen knives and knives at home, a knife sharpener that can perform water sharpening by a simple operation of pushing and pulling the knife is known.
In such a blade sharpener, a pressing portion for pressing operation is provided on one end side in the longitudinal direction of the elongated main body case, and a rotatable grindstone piece (grinding stone material) is housed on the other end side in the longitudinal direction in an oblique direction. There is a structure in which a polishing chamber is provided.

In many cases, a structure is used in which an opening for opening the polishing chamber and a cover for covering the opening are provided on one side in the lateral direction, which is the width direction of the main body case, and a part of the grindstone piece is exposed to the outside from the cover. Be done. In other words, when sharpening a blade, after storing water in the polishing chamber, hold the main body case in a horizontal position, and then push and pull the blade through the polishing groove of the grindstone piece facing the outside of the cover. I do. As a result, the blade portion of the blade is sharpened by rubbing against the polished surface of the grindstone piece immersed in water.

By the way, since a blade sharpener that polishes with water sharpens produces polishing residue that has been sharpened after use, it is recommended to wash it off and then dry and store it mainly in the part where the grindstone piece fits. There is.

For this reason, most blade sharpeners employ a cover that opens and closes in the lateral direction, which is the width direction of the main body case, as disclosed in Patent Document 1, and opens the cover in a horizontal position to open the grindstone. The pieces and polishing chambers are stored while being dried, and the covers are closed for storage.

Design Registration No. 1512177

By the way, the free space around the kitchen is often not enough, and it may be difficult to secure a place to dry the knife sharpener in the limited space.
For this reason, it is desirable that the blade sharpener be dried and stored in a small occupied area as much as possible.

Therefore, it is conceivable to place an elongated blade sharpener used in a horizontal orientation in a vertical orientation and store it independently.

However, if the slender blade sharpener is simply made to stand on its own in a vertical position with one end face down, the occupied area can be kept small, but the cover that opens in the width direction is not placed on the upper side. Since it cannot be opened smoothly, the grindstone piece, which is heavier than the holding portion, tends to be stored in a posture in which the grindstone piece is arranged above the holding portion.

For this reason, the stored knife sharpener is unstable and tends to lack self-sustaining stability. Moreover, when storing while promoting drying, the cover placed on the upper side is opened in the lateral direction of the main body case, and the center of gravity changes in the unstable direction, so that the independence of the blade sharpener becomes more unstable. Cheap.
Therefore, an object of the present invention is to provide a blade sharpener capable of being stored while promoting drying in a vertical position having an excellent space-saving area with improved self-sustaining stability.

In the aspect of the present invention, it can be placed on the surface to be placed in a horizontal posture, a pressing portion for performing a pressing operation is provided on one end side in the longitudinal direction, and a grindstone material for sharpening a cutting tool is provided on the other end side in the longitudinal direction. It has a polishing chamber to be accommodated, and has an elongated main body case having an opening for opening the polishing chamber at the upper part when placed in a sideways posture, and a cover for opening and closing the opening of the main body case for polishing. It is a blade sharpener that allows the blade to be polished by the grindstone material immersed in water by storing water in the chamber and placing the main body case on the surface to be placed while holding the main body case in a sideways posture with the holding part. The other end of the main body case is supported as a fulcrum along the longitudinal direction of the main body case, and the other end surface of the main body case is the end face corresponding to the upper part when the main body case is placed in a sideways posture. The main body case has a protrusion protruding out of the case from the end face portion corresponding to the opposite lower portion, and the holding portion is on the upper side when the main body case is placed on the placement surface with the other end surface in the longitudinal direction facing down. , The opening of the cover is opened between the extension line extending from the other end surface of the self-supporting main body case to the opening side of the main body case and the placed surface so that the grindstone material can stand on its own in a vertical position with the grindstone material facing down. It was assumed that an allowable space would be secured.

As a result, when the other end surface of the main body case is placed vertically on the placed surface, the tip of the protrusion and the edge of the main body case are supported by the placed surface, and the blade sharpener is supported in the vertical position. While becoming independent. At this time, in the main body case, the holding portion, which is considered to be light in weight, is arranged on the upper side, and the grindstone material, which is considered to be heavy in weight, is arranged on the lower side. Coupled with the tilt of the main body case, it is stable and self-supporting.

At this time, if the cover is opened with the other end of the main body case as a fulcrum so as to occupy the space between the other end surface of the main body case and the surface to be placed, the polishing chamber containing the grindstone material is exposed to the outside air. At this time, the cover to be opened is displaced to the side opposite to the side where the center of gravity of the main body case is displaced, so even if the cover is opened to promote drying, the position of the center of gravity of the blade sharpener is maintained at a stable position. The blade sharpener continues to ensure high self-sustaining stability.

Preferably, the protrusion has a protrusion length that allows the cover to open slightly. As a result, the storage of the blade sharpener while promoting drying not only stabilizes the position of the center of gravity, but also suppresses excessive overhang to the surroundings, so that storage with a particularly small occupied space becomes possible.

Preferably, the grindstone material is composed of a plurality of grindstone pieces having different specifications. This not only enables many types of blade sharpening, but also increases the self-sustaining stability of the blade sharpener as the weight increases.

According to the present invention, the blade sharpener can be stored while promoting drying in a vertical posture with excellent self-sustaining stability and an excellent occupied area (claim 1).
In particular, by using a protruding portion that allows the cover to open slightly, the blade sharpener can be stored while promoting drying under a space-saving space and sufficient self-sustaining stability (claim 2). ).

Further, by using a plurality of grindstone pieces having different specifications, not only can many types of grindstones be sharpened, but also the self-sustaining stability of the grindstone sharpener can be further improved as the weight increases (claim 3). ).

The perspective view which shows the appearance of the blade sharpener which concerns on one Embodiment of this invention. The end view of the blade sharpener as seen from the arrow I in FIG. A perspective view of a blade sharpener with the cover fully opened, which explains the work of storing water in the polishing chamber when polishing a blade. The perspective view explaining the situation of sharpening a knife with a knife sharpener. The perspective view explaining when the knife sharpener is stored in a vertical position. Side view of the storage as seen from the side.

Hereinafter, the present invention will be described with reference to one embodiment shown in FIGS. 1 to 6.
FIG. 1 shows the entire blade sharpener A for polishing the blade S (shown in FIG. 4) by water sharpening, FIG. 2 shows the end face of the blade sharpener A, and FIG. 3 shows the cover 15 fully open. The blade sharpener A is shown, FIG. 4 shows the case where the blade S is water-polished with the blade sharpener A placed in a horizontal position, and FIGS. 5 and 6 show the blade sharpener A stored (normal storage or storage). It shows the time of storage while promoting drying).

Explaining the blade sharpener A, as shown in FIGS. 1 to 4, the blade sharpener A has a main body case 1 as a main body, a grindstone piece 11 as a grindstone material, and a cover 15.
The main body case 1 of the blade sharpener A is composed of an elongated member, for example, a square box-shaped elongated body.

Here, in order to make each part of the main body case 1 easy to understand, the front-rear direction of the main body case 1 shown in FIG. 1 is set as "X" as the longitudinal direction of the present embodiment, and among the width direction and the vertical direction of the main body case 1, Here, the vertical direction, which is the vertical direction when the blade sharpener A is used in the horizontal position, is represented by "Y" as the lateral direction of the present embodiment. By the way, it does not suggest the width direction that is left and right in the horizontal posture.

Then, one end surface of the main body case 1 in the longitudinal direction X is set to "1a", the other end surface of the main body case 1 in the longitudinal direction X is set to "1b", and one side surface of the main body case 1 in the vertical direction (short direction Y) is set. "1c", the other side surface of the main body case 1 in the vertical direction (short direction Y) is defined as "1d". Incidentally, one side surface 1c of the main body case 1 has an arc shape.

As shown in FIG. 4, this blade sharpener A is used in a horizontal posture with the other side surface 1d of the main body case 1 in the vertical direction (short direction Y) facing down when polishing a blade S such as a kitchen knife or a knife. At the time of storage, the user is stored in a sideways posture as shown in FIG. 1 and in the front-rear direction (longitudinal direction X) of the main body case 1 shown in FIGS. 5 and 6, depending on the work environment and the like. It is an instrument that can be used properly for storage in a vertical position with the other end surface 1b facing down.

Therefore, on the other side surface 1d (lower surface) of the main body case 1 in the vertical direction (short direction Y), a placing surface 2a on which the main body case 1 can be placed in a sideways posture is formed with respect to a placing surface T such as a kitchen table. (Fig. 4). Further, on the other end surface 1b of the main body case 1 in the front-rear direction (longitudinal direction X), a placement surface 2b on which the main body case 1 can be placed in a vertical position with respect to a placement surface T such as a kitchen table is formed (FIGS. 5 and 5). 6). The placement surface 2b will be described later.

As shown in FIG. 1, an elongated through hole 3 through which a user's finger can be inserted is provided in the middle stage on one end side of the main body case 1 in the front-rear direction (longitudinal direction X). As a result, a grip portion 5 (corresponding to a presser portion) that can be gripped by the user's fingers is formed on one end side of the main body case 1 in the front-rear direction (longitudinal direction X). That is, the blade sharpener A is held by the user's grip, and the blade sharpener A is pressed against the placement surface T (pressing operation) in a lateral posture suitable for sharpening the blade S by the same holding. ..

Further, as shown in FIGS. 1 and 3, a polishing chamber 7 is formed on the other end side of the main body case 1 in the longitudinal direction X. The polishing chamber 7 is formed from a position adjacent to the grip portion 5 to the other end surface 1b in the front-rear direction (longitudinal direction X). Then, the entire polishing chamber 7 is opened in the opening 9 provided in the upper part (one side portion in the lateral direction Y) of the main body case 1 (sideways posture).

Incidentally, the opening 9 is formed by cutting out, for example, an upper portion (one side portion) including an arc portion of the main body case 1. That is, the water required for water polishing is stored in the polishing chamber 7 through the opening 9 that opens on one side in the vertical direction (horizontal direction Y).

In the polishing chamber 7, a grindstone material, for example, a plurality of grindstone pieces 11 having a V-groove portion 12 (polishing groove) on the outer peripheral surface as shown in FIG. 3, specifically, three grindstone pieces as shown by reference numerals 11a to 11c. The grindstone pieces 11a to 11c are housed.
More specifically, the grindstone pieces 11a to 11c having different specifications such as for rough sharpening and finish sharpening are housed. Then, the grindstone pieces 11a to 11c are all arranged in parallel along the front-rear direction (longitudinal direction X) in an oblique direction with respect to the front-rear direction (longitudinal direction X).

Further, each of the grindstone pieces 11a to 11c is rotatably supported by a plurality of stand portions 13 protruding from the bottom surface of the polishing chamber 7. Then, the grindstone piece portion on the stand portion 13 side is arranged in the polishing chamber 7 with the axial center portions of the grindstone pieces 11a to 11c as boundaries, and the grindstone piece portion on the opening 9 side is a notched opening of the main body case 1. The structure is such that it is exposed to the part 9 and can be water-polished using the water stored in the polishing chamber 7.

On the other hand, the cover 15 has a shape that covers the entire opening 9 of the main body case 1, specifically, a shape that supplements the upper portion (one side portion) of the notched main body case 1 in the vertical direction (short direction Y). ing. Specifically, the cover 15 includes, for example, an arc-shaped curved side wall 15a that supplements the missing side surface portion of the main body case 1 as shown in FIGS. 1 to 3, and the missing other end surface portion in the lateral direction Y. It is an L-shaped plate having an arc-shaped end wall 15b that supplements the above. Here, the L-shaped plate is formed of a transparent member.

The end wall 15b of the cover 15 rotates with respect to the other end of the main body case 1 in the longitudinal direction X, specifically, the other end wall of the polishing chamber 7 in the front-rear direction via the hinge portion 17 (support portion). It is supported freely. As a result, the cover 15 is supported so as to be openable and closable along the front-rear direction (longitudinal direction X) of the main body case 1 with the hinge portion 17 as a fulcrum portion.

That is, as shown in FIGS. 5 and 6, the cover 15 has a closed position α1 that covers the opening 9 and an open position α2 (fully open or half open) that is separated from the main body case 1 that is the front side of the opening 9. Rotate between the open position and the like.

Further, the side wall 15a of the cover 15 is provided with a band hole 19 for exposing the V-groove portion 12 (part) of the grindstone pieces 11a to 11c to the outside.

As a result, when sharpening the blade S, water is stored in the polishing chamber 7, the main body case 1 (blade sharpener A) is held in a horizontal position on the object surface T, and then the blade portion S1 of the blade S is held. , When the blade portion S1 of the blade S is immersed in water when the blade portion S1 of the blade S is immersed in water when the blade portion S1 of the blade S is immersed in water when the blade portion S1 of the blade S is immersed in water by passing the blade portion S1 of the blade S through the V-groove portion 12 of any of the grindstone pieces 11a to 11c through the band hole 19, polishing the V-groove portion 12 (grindstone pieces 11a to 11c). Sharpen by rubbing against the surface.

On the other hand, as shown in FIGS. 2 and 6, the other end surface 1b of the main body case 1 in the front-rear direction (longitudinal direction X) is provided with a protrusion 27 for allowing the blade sharpener A to stand vertically.
The protrusion 27 corresponds to, for example, the end surface portion of the other end surface 1b corresponding to the upper portion (one side portion in the lateral direction Y) of the main body case and the lower portion on the opposite side (one other side portion in the lateral direction Y). It is composed of a small hemispherical convex portion 28 (potch) protruding out of the case from the end face portion.

Here, the protrusion 27 is formed with an inclined surface portion 28a on the other end surface 1b, which is inclined in a direction away from the other end surface 1b from the lower part to the upper part of the main body case 1 (sideways posture). A structure in which the convex portion 28 is provided on the 28a is used. Incidentally, the protrusion 27 may be only the protrusion inclined surface portion 28a or only the protrusion 28.
In particular, a plurality of convex portions 28 are arranged, for example, two on both sides so as to ensure a stable vertical posture.

As a result, when the main body case 1 is vertically placed on the placed surface T such as a kitchen table with the other end surface 1b in the longitudinal direction X having the convex portion 28 (protruding portion) facing down, the main body case 1 becomes the convex portions 28, 28. The main body case 1 is supported by the edges of the main body case 1 on the opposite side of the convex portions 28 and 28 and is self-supporting, that is, the main body case 1 is vertically placed and self-supporting. That is, the structure is such that the placing surface 2b is formed.

That is, the blade sharpener A can stand on its own by arranging the light grip portion 5 on the upper side and the heavy grindstone pieces 11a to 11c on the lower side. There is.

Further, when the blade sharpener A is allowed to stand on its own in a vertical position, as shown in FIG. 6, the amount of inclination of the main body case 1 brought about by the protruding amount of the convex portions 28, 28 is from the other end surface 1b of the main body case 1 to the main body case 1. The structure is such that a space β that allows the opening of the cover 15 is secured between the extension line γ extending to one side in the lateral direction Y and the placement surface T.

By securing this space β, the blade sharpener A can be stored not only in the vertical position with the cover 15 closed, but also in the vertical position with the cover 15 open, that is, it can be stored while promoting drying. It is supposed to be.

Here, the protruding length of the convex portion 28 and the inclined surface portion is such that the cover 15 is opened (for example, half-opened) so that the blade sharpener A can stably stand on its own regardless of whether the cover 15 is closed or the cover 15 is opened. The following) is defined as a space β that allows a small amount. By the way, when the cover 15 is opened, the bias of the center of gravity of the main body case 1 (vertically placed) is offset even a little.

Incidentally, on one side surface of the main body case 1 adjacent to the free end of the cover 15, a recess 31 for raising the closed cover 15 with the fingertip of the cover 15 is provided.

Next, the operation of the blade sharpener A configured in this way will be described.
When sharpening the bladed portion S1 of the blade S using the blade sharpener A, first, as shown in FIG. 2, the user opens the cover 15 and applies the water required for water sharpening to the inside of the polishing chamber 7. Put it in and save it.

Then, as shown in FIG. 4, the cover 15 is closed, the opening 9 of the polishing chamber 7 is closed so that the water inside does not come out, and then the knife sharpener A is used in the kitchen with the placing surface 2a facing down. Place it on the surface T such as a table (horizontal position).

Subsequently, the user grips the grip portion 5, places the main body case 1 on the placing surface 2a in a horizontal position, and while pressing the grip portion 5, the blade portion S1 of the blade S is moved from the band hole 19 to the grindstone piece. It is passed through any of the V-groove portions 12 of 11a to 11c and pushed and pulled as shown by the arrows in FIG. As a result, the blade portion S1 of the blade S is ground by rubbing against the polished surface of the V-groove portions 12 (grinding stone pieces 11a to 11c) immersed in water (water sharpening).

After the use of water-polishing polishing, polishing debris obtained by polishing the blade S is generated. Therefore, after use, the blade sharpener A opens the cover 15, rinses them, and then dries and stores the portion where the grindstone pieces 11a to 11c are accommodated.

At this time, depending on the work environment or the like, the user attaches the blade sharpener A to the placement surface T of the kitchen table or the like with the other end surface 1b facing down, as shown in FIGS. 5 (a) and 6 (a). It is assumed that it is placed vertically for storage. Incidentally, in both FIGS. 5 (a) and 6 (a), the cover 15 is closed.

Then, the vertically placed blade sharpener A is supported by each of the convex portions 28 formed on the other end surface 1b and the edge portion of the main body case 1 on the opposite side of the convex portion 28 to stand on its own. .. That is, the blade sharpener A is self-supporting with the convex portion 28 side raised, that is, it is slightly tilted and self-supporting in a vertical posture.

At this time, in the blade sharpener A, the grip portion 5 (holding portion) having a small weight is arranged on the upper side, and the grindstone pieces 11a to 11c having a large weight are arranged on the lower side. Although it occupies an area, it continues to stand on its own in a stable vertical posture.

When storing while promoting drying, insert the fingertip into the recess 31 of the blade sharpener A in the vertical position as shown in FIGS. 5 (b) and 6 (b), and place the cover 15 in the space β. In the range that can be tolerated, here it operates slightly (for example, half-open or 1/4 open or less). Then, the inside of the polishing chamber 7 containing the grindstone pieces 11a to 11c is exposed to the outside air. As a result, drying of the grindstone pieces 11a to 11c and the polishing chamber 7 is promoted.

At this time, since the cover 15 to be opened is displaced to the side opposite to the side where the center of gravity of the main body case 1 is displaced, even if the cover 15 is opened to promote drying, the fluctuation of the center of gravity of the blade sharpener A can be suppressed. , The position of the center of gravity of the blade sharpener A is maintained at a stable position, and high self-sustaining stability continues to be ensured.

Of course, even if the cover 15 of the blade sharpener A, which was independent in the oblique vertical posture as shown in FIGS. 5 (a) and 6 (a), is closed, the blade sharpener A is in a stable and independent vertical posture. Continues to be stored at.

Therefore, the blade sharpener A can stand on its own in a vertical position using the convex portion 28 (protruding portion) with the grip portion 5 (holding portion) on the upper side and the grindstone pieces 11a to 11c (grindstone material) on the lower side. By adopting a structure that allows the cover 15 to open in the direction opposite to the tilting direction of the blade sharpener A at this time, it is placed in a vertical position with excellent self-sustaining stability and an excellent area-saving occupancy. Can be stored while promoting drying. Of course, the blade sharpener A may be stored in a horizontal position as shown in FIG.

Moreover, by using the convex portion 28 (protruding portion) that allows the cover 15 to open slightly, the blade sharpener A not only makes it easier to stabilize the position of the center of gravity, but also suppresses excessive overhang to the surroundings. It can be stored while promoting drying under sufficient self-sustaining stability.

In particular, by using a plurality of grindstone pieces 11a to 11c having different specifications for the grindstone piece 11 (grindstone material), not only can many types of grindstones be sharpened, but also the weight increases, so that the grindstone sharpener is further sharpened. It is possible to improve the independence stability of A.

The present invention is not limited to one embodiment, and various variations may be made within a range that does not deviate from the gist of the present invention. For example, in the above-described embodiment, a potch is used for the protrusion, but the present invention is not limited to this, and a protrusion or the like protruding by another structure may be used. Of course, as long as the main body case has a structure that allows it to stand on its own in a vertical position, a structure in which the protrusions can be attached and detached may be used.

1 Main body case 1a Longitudinal end surface suggested before and after the main body case placed in a horizontal position 1b Longitudinal end surface suggested before and after the main body case 1c Short side one side surface also suggested at the top of the main body case 1d Same as the main body Other side surface in the lateral direction suggested at the bottom of the case 5 Grip part (holding part)
7 Polishing chamber 9 Openings 11a to 11c Whetstone piece (grinding material)
15 Cover 27 Protrusion A Blade sharpener β Space

Claims (3)

It can be placed on the surface to be placed in a sideways posture, and one end side in the longitudinal direction has a pressing portion for performing a pressing operation, and the other end side in the longitudinal direction has a polishing chamber in which a grindstone material for sharpening a blade is stored. An elongated main body case having an opening for opening the polishing chamber at the upper part when the polishing chamber is held and placed in a sideways posture.
It has a cover that opens and closes the opening of the main body case.
It is a blade sharpener that enables polishing of blades with a grindstone material immersed in water by storing water in the polishing chamber and placing the main body case on the surface to be placed while holding the main body case in a sideways posture with the holding portion. ,
The cover is supported by the other end of the main body case in the longitudinal direction as a fulcrum so as to be openable and closable along the longitudinal direction of the main body case.
The other end surface of the main body case in the longitudinal direction has a protrusion whose end face portion corresponding to the upper portion protrudes out of the case from the end face portion corresponding to the opposite lower portion when the main body case is placed in a sideways posture.
The protrusion allows the main body case to stand on its own in a vertical position with the holding portion on the upper side and the grindstone material on the lower side when the main body case is placed on the placement surface with the other end surface in the longitudinal direction facing down.
A blade sharpener characterized in that a space is secured between the extension line extending from the other end surface of the self-supporting main body case to the opening side of the main body case and the placed surface to allow the cover to open. The blade sharpener according to claim 1, wherein the protrusion has a protrusion length that allows the cover to be slightly opened. The blade sharpener according to claim 1, wherein the grindstone material is composed of a plurality of grindstone pieces having different specifications.

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