JP3222849U - A grindstone with a cloud of knives - Google Patents

Abstract

There is provided a bullion fogging grindstone capable of sharpening a knife so that a steel part shines brilliantly while a bullion (soft iron) part of the knife maintains a cloudy appearance. A knives clouding grindstone 1 for a kitchen knife is composed of a sheet-like base 10, a glass plate 11 disposed on the base 10, an abrasive 12 disposed on the glass plate 11, and an abrasive 12. And water 13 sprayed on the abrasive 12 so as to become familiar with the glass plate 11. The abrasive 12 is spherical glass beads, and the average particle diameter of the glass beads is 15 μm or more and 70 μm or less. [Selection] Figure 1

Description

  More specifically, the present invention relates to a knives with a bullion that is cloudy, and more specifically, the bullion (soft iron) part of the knife is cloudy and the steel part can be sharpened with a brilliant finish. It is related to the whetstone.

  Conventionally, a sharpener that inserts a blade into a V-shaped portion and pushes and pulls the blade when the sharpness of the blade is lowered is generally used. For example, in Patent Document 1 (Japanese Patent Application Laid-Open No. 2009-226572), every other blade is moved in the groove direction while pressing the blade edge against a groove of a polishing element provided in a V shape so as to sharpen from both sides of the blade. A knife sharpener for sharpening the cutting edge of a knife such as a knife is disclosed.

  Further, Patent Document 2 (Utility Model Registration No. 3219990) discloses a sharpening table placed on a flat place such as a table. In this sharpening stand, in a state where the blade H is placed on the magnet portion with the attracting sheet, fixed with magnetic force and attracting force, and the roller is in contact with a flat place, the blade and the sharpening file are Since it forms so that it may contact | connect at a predetermined fixed angle, by grinding | polishing with a fixed angle with respect to the blade edge | tip of a cutter, the angle of a blade edge | tip becomes constant and a blade edge | tip can be made into a small saw-tooth shape.

JP 2009-226572 A Utility Model Registration No. 3211990

  Both of Patent Document 1 and Patent Document 2 are sharpeners that can sharpen the blade edge of a blade, but when sharpening a commercially available knife, not only the edge portion of the blade but also the peripheral portion of the edge (Also called “cutting edge”) is required. That is, soft iron (metal) is disposed around the cutting edge 22 at the tip of the kitchen knife, but it is preferable that the appearance of this soft iron portion looks cloudy. In this regard, the conventional sharpeners cannot sharpen cutting edges (metal bars) located around the cutting edge.

  The present invention has been made to solve the above-mentioned problems. The purpose of the invention is to make the knives (soft iron) part of the kitchen knife cloudy and the steel part shine brightly. It provides a frosted grinding wheel that can be sharpened.

  The knives frosted grindstone of the kitchen knife of the present invention is a sheet-like base, a glass plate disposed on the base, an abrasive disposed on the glass plate, and the abrasive conforms to the glass plate. Thus, water sprayed on the abrasive is sprayed. By spraying water with a spray, water remains on the glass plate due to the surface tension between the glass plate and the abrasive and acts as a lubricant when sharpening the knife. Then, the cutting blade of the kitchen knife is polished by the abrasive, so that the base metal (soft iron) portion of the kitchen knife can be sharply clouded and the steel portion can be sharpened with a sparkling finish.

  The abrasive is preferably spherical glass beads, and the average particle diameter of the glass beads is more preferably 15 μm or more and 70 μm or less. By using such an abrasive, clouding of the base metal (soft iron) portion of the kitchen knife can be emphasized.

  It is preferable to further have a crack preventing sheet affixed to either one of the front and back surfaces of the glass plate. By laminating such a sheet for preventing cracking, it is possible to prevent the glass plate from cracking and to improve safety and workability.

  By using the frosted metal grinding wheel of the knife of the present invention, the knife can be sharpened so that the bullion (soft iron) portion of the knife maintains a cloudy appearance and the steel portion shines brilliantly.

It is a typical perspective view of a bullion clouding grindstone of the present invention. It is a typical perspective view of the kitchen knife of the object sharpened with the bullion fogging whetstone of the present invention. It is typical sectional drawing when the kitchen knife produced by three sheets is cut | disconnected in the cross section perpendicular | vertical to the longitudinal direction. It is typical sectional drawing when the knife produced by interruption is cut | disconnected by the cross section perpendicular | vertical to the longitudinal direction. It is typical sectional drawing when the kitchen knife produced with the attachment steel is cut | disconnected in the cross section perpendicular | vertical to the longitudinal direction. It is a perspective view which shows the state which sharpens the knife using the grindstone of this invention.

  In the following, embodiments are described which detail the details and advantages of the present invention. According to the disclosure, the claims, and the drawings in the present embodiment, those skilled in the art can easily understand the technical contents of the present invention and can fully carry out the present invention without excess or deficiency. Those who have common sense in this technical field can easily understand the purpose and benefit related to the present invention.

  FIG. 1 is a perspective view showing an external appearance of a frosted grinding wheel of a knife according to the present invention. As shown in FIG. 1, the knives of the knives 1 of the present invention have a sheet-like rubber base 10, a glass plate 11 that is disposed on the base 10 and has substantially the same shape as the base 10, It has the abrasive | polishing material 12 put on the said glass plate 11, and the water 13 sprayed with respect to the abrasive | polishing material 12 so that the said abrasive | polishing material 12 may adapt to the glass plate 11. FIG. The water 13 on the glass plate 11 can be fixed to the glass plate 11 by the surface tension of the abrasive 12 and the glass plate 11 by spraying with water. If tap water is applied to the glass plate 11, the abrasive 12 falls from the glass plate 11.

  Next, a knife to be used for the grindstone 1 of the present invention will be described. FIG. 2 is a perspective view of a knife 20 to be used with the grindstone 1 of the present invention. The types of kitchen knife 20 can be broadly divided into “main-fired kitchen knives” made only of steel and “matched kitchen knives” in which steel is bonded to soft iron (ingots). It is a “matching knife”. In the mating knife, only the cutting edge 22 of the cutting edge 21 is made of steel, and the part other than the cutting edge 22 is made of soft iron (metal). The soft iron (metal) attached to the tip of the handle 24 which is the handle portion of the knife 20 is a flat 23, and the boundary line between the flat 23 and the blade edge 22 is a scissors 25 (Shinogi). The appearance of the kitchen knife 20 is preferably such that the cutting edge 21 is cloudy and the cutting edge 22 (steel part) is shining brightly. By using the grindstone 1 of the present invention, the above-described preferable appearance can be achieved.

  The type of knives will be further explained. FIG. 3A is a schematic cross-sectional view of a knife made by combining three sheets, cut along a cross section perpendicular to the longitudinal direction, and FIG. 3B shows a knife made by interruption in the longitudinal direction. FIG. 3C is a schematic cross-sectional view when cut along a vertical cross section, and FIG. 3C is a schematic cross-sectional view when a knife made of attached steel is cut along a cross-section perpendicular to the longitudinal direction. Each of FIGS. 3A to 3C is common in that only the cutting edge is made of steel, and the others are made of soft iron (metal). By using these knives 20 over a long period of time, the cutting edge 22 is rounded and the sharpness of the knives 20 is lowered. The sharpness of the knife 20 can be revived by sharpening the knife 22 by sharpening the knife 20 having a rounded edge 22 with the grindstone 1 of the present invention. In addition, the grindstone 1 of this invention is not restricted only to the kitchen knife which has the cross-sectional shape shown by FIG. 3A-FIG. 3C.

  FIG. 4 is a schematic view showing a state in which the knife in FIG. 2 is sharpened using the grindstone in FIG. As shown in FIG. 4, the cutting blade of the kitchen knife 20 is obtained by sliding the knife back and forth while applying a downward force to the abrasive 12 positioned on the upper surface of the grindstone 1 with the side surface of the knife applied. Sharpen 21. The sharpening method is the same as in the prior art, and it is preferable to sharpen the knife 20 so that the abrasive 12 is entangled with the knife 20 as in the case of sharpening the knife with a square grindstone as in the past. By sharpening the knife 20 in this manner, the knife can be sharpened so that the metal (soft iron) portion of the knife 20 is cloudy and the blade edge 22 (steel portion) shines brightly.

  The conventional commercially available knife sharpens the cutting edge 21 with a finishing grindstone after sharpening the cutting edge 21 with a square grindstone, but when the cutting edge 21 is sharpened with the finishing grindstone in this way, the entire cutting edge 22 shines brightly. It becomes like this. Therefore, after polishing with the finishing grindstone, it is necessary to cloud the portion other than the cutting edge of the cutting edge 21 by performing blast shot on the portion other than the cutting edge 22 of the cutting edge 21 (that is, the metal). On the other hand, if the grindstone 1 of the present invention is used, the knives 20 are simply sharpened so that the ingot (soft iron) portion of the knives 20 is cloudy and the cutting edge 22 (steel portion) shines brightly. Can be sharpened. For this reason, there is a merit that the blast shot which is essential in the conventional process can be omitted. Further, by sharpening the knife using the grindstone 1 of the present invention, the knives of the base metal (soft iron) of the knife 20 become more cloudy than the conventional method of sharpening the knife, so that there is also an advantage that wrinkles appear clearly. .

  Next, each part which comprises the grindstone 1 of this invention is demonstrated. First, the base 10 is preferably made of rubber and has a sheet shape. The material used for the base 10 is not limited to rubber as long as it is difficult to slip even on the floor. However, when the knife is sharpened with the grindstone 1, a downward load is applied. It is safe to use the rubber base 10 from the viewpoint that the glass plate 11 disposed on the top does not break. The base 10 is generally rectangular with a vertical and horizontal size of 10 cm × 20 cm when viewed from above, but the vertical and horizontal sizes are not limited to this, and the outer shape is not limited to a rectangle. The thickness of the base 10 is not particularly limited, but needs to have a thickness that can absorb the load from the glass plate 11.

  The glass plate 11 is disposed on the base 10. The outer shape of the glass plate 11 is preferably the same size as the upper surface of the base 10 in a top view. If the glass plate 11 is larger than the base 10, the glass plate 11 is easily damaged, and if the glass plate 11 is smaller than the base 10, the knife 20 slides back and forth when the knife 20 is caught on the base 10 and sharpens the knife 20. It is hard to let you. Since a load is applied downward from the upper part of the glass plate 11 to the glass plate 11 when sharpening the knife 20, it is necessary to use the glass plate 11 having a strength that does not break even when the load is applied. The thickness of the glass plate 11 is not particularly limited, but when the knife 20 is sharpened, a load may be locally applied through the abrasive 12, so that it is necessary to have a thickness that can counter the load.

  For the purpose of improving the strength of the glass plate 11, it is preferable that a crack prevention sheet (not shown) is attached to either one of the front and back surfaces of the glass plate 11. By providing the crack prevention sheet in this way, it is possible to prevent the glass plate 11 from being damaged even when an excessive load is applied downward to the glass plate 11 when the knife 20 is sharpened.

  An abrasive 12 is disposed on the glass plate 11. The abrasive 12 is preferably glass beads, and more preferably spherical glass beads. With the appropriate hardness of the glass beads, the surface of the steel can be finely and evenly finished, while the surface of the soft iron (metal) can be made rough enough to become cloudy. Moreover, it is preferable that the average particle diameter of a glass bead is 1 micrometer or more and 100 micrometers or less, More preferably, they are 5 micrometers or more and 90 micrometers or less, More preferably, they are 15 micrometers or more and 70 micrometers or less. When limited by the grain number of the center particle diameter of the glass beads, it is preferably # 3000 or less and # 180 or more, more preferably # 800 or less and # 220 or more, and further preferably # 600 or less and # 320 or more. By using such a glass bead, the fogging of the surface of the soft iron can be increased and the surface of the steel at the blade edge can shine. In the present invention, the case where glass beads are used as the abrasive 12 has been described. However, an abrasive made of a material other than glass beads may be used.

  The water 13 on the glass plate 11 is supplied little by little on the glass plate 11 by spraying with the spray. By supplying the water 13 in this way, the water 13 can be left on the glass plate 11 by the surface tension between the abrasive 12 and the glass plate 11. If the water 12 is supplied from the faucet to the glass plate 11, the abrasive 12 falls off the glass plate 11 and is not preferable. The abrasive material 12 becomes familiar on the glass plate 11 by the water 13 and functions as a lubricating oil when the knife 20 is slid back and forth.

  As mentioned above, although the features and excellent points of the present invention have been described in the above embodiment, the present invention widely uses the words used in the claims of the utility model registration within the scope of the principle of the present invention. It can be extended to a specific meaning.

  Various changes can be made to the size and shape of the grinding stone of the present invention, the thickness of the material, the weight, etc., and different forms with these changes are also included in the technical scope of the present invention.

DESCRIPTION OF SYMBOLS 10 Base 11 Glass plate 12 Abrasive material 13 Water 20 Kitchen knife 21 Cutting edge 22 Cutting edge 23 Flat 24 Pattern 25 鎬

Claims (4)

A sheet-like base,
A glass plate disposed on the base;
An abrasive disposed on the glass plate;
A knives frosted grindstone of a knife having water sprayed on the abrasive so that the abrasive fits into the glass plate.   The knives frosted grindstone of a knife according to claim 1, wherein the abrasive is spherical glass beads.   The grindstone of the knives of the knife according to claim 2, wherein the glass beads have an average particle diameter of 15 µm or more and 70 µm or less.   The bullion clouding grindstone of a knife according to any one of claims 1 to 3, further comprising a crack prevention sheet attached to either one of the front and back surfaces of the glass plate.