JPS58181550A - Device for whetting cutter - Google Patents

Abstract

PURPOSE:To set a desired angle of whetting of a cutter which is moved back and forth in the gap between a whetstone and a support for the cutter so that the cutter is whetted, by providing a movable adjustment means for adjusting the distance between the support and the whetstone. CONSTITUTION:A cutter is inserted in between a whetstone 30 and a support 1 so that the back of the cutter is placed on the support and the cutting edge of the cutter is placed on the surface of the whetstone. The cutter is then moved back and forth in the longitudinal direction of the cutting edge so that the edge is sharpened. To change the gap depending on the kind of the cutting or the angle of its grinding, an adjuster 6 is elevated at the front edge together with the support 1, a part 9 for holding by engagement is disengaged from an engaging part 16, the adjuster is displaced forward or backward and the holding part 9 is engaged with the engaging part 16 again. As a result, the positional relationship between blocks 5, 8 in the front-to-rear direction is changed, so that the level of the support 1 is made higher or lower when a slope 4 is placed in contact with a slope 7.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a knife sharpening tool that is easy to use when an amateur sharpens a knife at home or the like.

It is common practice to sharpen the above-mentioned cutler by dropping a sharpening liquid such as oil or water onto the whetstone, holding it over the whole knife, and moving the edge of the knife back and forth. In this method, the knife is held at a certain angle (
A technique to maintain τ is required. This is not a problem because a carpenter or other professional in the field has been skilled for a long time, but if an amateur does this, the holding angle of the knife relative to the abrasive surface trap will be disturbed during the back and forth movement, This results in a ``round blade,'' which actually impairs the sharpness of the blade, and it becomes necessary to have it resharpened by a specialist. Therefore, there are simple sharpening tools for sharpening double-edged objects such as Nakiri hocho for home use! ! [Some have been developed. f'
LFi, a clamping tool having abrasive surfaces facing each other,
During this time, the knife is held in place, and while being held, the knife is moved in the longitudinal direction of the blade edge. With this method, the angle of the abrasive surface remains almost constant, and if the angle of the edge of the blade is large, it cannot be sharpened, and if the angle of the edge of the blade is small (the angle of the abrasive surface is Since it is corrected to an obtuse angle,
Depending on the Pb* of the cutter, it cannot be used. Also, if the clamping pressure is increased to clamp the knife, the frictional resistance applied to the knife will require considerable force to move back and forth, and if the clamping pressure is lowered, Substantially uniform sharpening becomes impossible.

As a result of a detailed study of this F3j3#-i, sharpening motion 1 of a knife, I found that an amateur can easily sharpen a knife according to the angle of the edge of the knife. The present invention aims to provide a method for sharpening knives that is easy to operate.

Hereinafter, the present invention will be specifically explained based on illustrated embodiments. In the figure, the reference numeral 1 indicates that the synthetic tree's proboscis egg receptacle is a stand, and the upper surface is flat. 1. The above-mentioned receiver has a stand Lt-j, columnar bodies 2 and 3 for holding on the lower surface, and a piece 5 having a triangular cross-section and forming an inclined surface 4 on the lower surface, which is located at the t, i1T stop, is integrally provided. It's cool.

Ot, 6 digits, F The holder which is equipped with a piece 8 having a triangular cross section on the upper surface and has an inclined surface 7f facing the inclined surface 4 is a platform height adjusting member, A sawtooth-shaped retaining portion 9 is integrally provided. It is the main body of the sharpening tool with reference numeral 1o, and the bed part 11 is
Above, the columnar body 2 and the cylindrical body 1 which is slidably fitted into the third column.
In the cylindrical body 13, a compression spring 15 is interposed between the spring seat 14 attached to the lower end of the columnar body 3 and the ceiling 13m of the cylindrical body 13. The %F recorder is holding the stand downward. Therefore, the pieces 5 and 8 maintain contact pressure with each other on the inclined surfaces 4 and 7. Further, on the bed portion 11, a sawtooth-shaped engagement portion 1 is provided opposite to the engagement holding portion 9.
6 is integrally formed.

A pillar part 17 is provided at the core of each sharpening tool main body 10ij, and a support member 18 in the shape of a truncated cone is pivotally supported on the shaft bearing part side 19 at a level higher than the upper surface of the table 1. Santeril. The shaft bearing member 19 has a screw 2 near its rear end.
0, it is screwed onto the pillow part 17, and in front of it, an adjustment screw 21 allows for horizontal adjustment in the front and back directions. The bearing member 19 has a hole 23 into which a notch ball 22 is inserted, and the ball 22 is pressed against the circumferential surface of the support member 18 by a compression stelling 24 provided therein. The supporting member 18 is provided with notched slots 25, facing the sol 22, at a phase of, for example, 90 degrees with respect to the direction of rotation, one of which allows the sol 22 to be received by the support member 18.
Thus, the rotational position t't of the support member 18 is correctly regulated. One side of the shaft bearing member 19 has a VCilt insertion hole 26, into which a wedge member 27 can be inserted and removed. A stop surface 28 corresponding to the side surface of this wedge member 27 is formed on the neck portion of the support member 18.
I'm here. The support member 18 has a support hole 29 located at its axis. The center shaft 31 of the grindstone 30 is inserted into the hole and fixed with an n% screw 32. The above-mentioned grindstone 30 has grindstone pieces 30a, 30b, 30C and 30d each having a trapezoidal cross section with chamfered corners.
1 with adhesive 33, and the grinding surface 34 of each grindstone piece
A, 34 bs34c and 34d adjacent ones are combined so as to be at right angles to each other. For example, a grinding wheel piece 30 a b 30 b s 30 e, grinding 30 d, grinding work (according to the grinding procedure, the grindstone material is made of coarse, medium, fine, and extra-fine 0 degrees). Note that the central axis 31 has a square cross section,
The rotational phase of the supporting member] 8 and the grinding wheel of the grinding wheel 3o correspond accurately.

In this embodiment, the sharpening tool and the sharpening stand 35 are
Use it by attaching it to. There are 35 sharpening racks, and 1 holding chamber 36 for receiving the pet part 11 of the sharpening tool main body 10.
In addition, small protrusions 37 are formed on both sides of the front side of the holding chamber 36 to prevent removal from the front. Seven sharpening pedestal 35 yt, which includes the column part 17 of the ten sharpening tool main body 10,
A hose fitting 38 is provided above the vk section of the holding chamber 36, and a hose 39 is connected via the connecting fitting 38.
The gutter-like water sprinkling member 40 connected to the necks t-, t
- A loaf holder installed in the grinding stand 35 is supported by the portion 41 from λ to rl and extends horizontally above the whetstone 30. At the other end of the hose 39, there is provided a rubber water conduit holder 42, which can be fitted into and removed from the eye support protrusion 43 provided on the back of the sharpening pedestal 35. It is fitted with n. , also F1
At the lower part of the abrasive frame 35, projections 44 for winding the hose 39 are provided at the front and rear thereof.

Next, how to use the sharpening tool of this invention will be explained.

First, the body 42 is removed from the eye support protrusion 43, the hose 39 wound around the protrusion 44 is removed and connected to a water pipe faucet, and water is supplied to the water sprinkling member 40 little by little. As shown in FIG. 6, the back of the knife is placed on the stand 1, and while the blade edge is in contact with the grindstone, it is reciprocated in the longitudinal direction of the blade edge while being twisted in the direction of the arrow. In this case, the vertical force applied to the cutter is applied by the receiver vertically downward with respect to the stand 1. Therefore, only the force of grinding becomes the contact pressure against the edge of the blade.
The frictional force of the sharpener applied to the knife is small and stable. Additionally, since the gap between the abrasive surface and the upper surface of the support stand 1 is set as desired, the blade edge contacts the abrasive surface at an angle θ.

If you lose the twister, the edge of the blade will separate from the whetstone and you will not be able to sharpen it.

Therefore, the angle θ during sharpening can be reliably maintained. (Due to over-sharpening, water drips from the water sprinkling member 40 to the bottom)
Droplets 40a fall onto the grinding wheel 30 or the cutting tool, and the water that falls on the table 1 is removed forward from the holding chamber 36.

In addition, when it is desired to change the gap depending on the type and size of the cutlery, the front edge of the adjustment member 60 is lifted up along with the holder 1 against the knob ring 15, and the engagement holding part 9 is removed from the engagement part 16. , the adjustment member 6t - moves forward or backward and engages the engagement holding part 9 again! 1s16. This engagement force is maintained by a sl ring 15. By this, piece 5
Since the relative positions of and 8 in the front-rear direction change, when the inclined surface 4 comes into contact with 7, the receiver moves as the level of the stand 1 rises or falls. This fl'l'l magazine II
By i'i, the sharpening angle of the blade can also be adjusted.

To avoid the roughness of the whetstone 30 in iP4ftM during sharpening work, remove the wedge member 27, rotate the support S member 18 to a 90 degree phase, and turn the whetstone surface to the bottom III. What is necessary is to select a grindstone piece and insert the wedge member 27 into the stem insertion hole 26 again.

In the above embodiment, the adjustment member 6 was used to adjust the gap between the grindstone and the support plate 1, but any other means may be used as long as it achieves the same purpose. Of course.

In 1, the holder may be placed on a stand and the grindstone may be adjusted up and down.

Further, in this embodiment, the support member 18 is
However, any locking means may be used.

In this actual example, water was supplied, but
Vi and oil may be supplied when oil polishing is performed.

As described above in detail in this invention, the cutter holder that slidably supports the back of the cutter includes a stand, and the holder has a grindstone arranged parallel to the stand with a desired gap. Be sure to have it ready.
Insert the blade into the gap with the blade part of the blade in contact with the lower surface of the grindstone, and place the holder on the stand and the back of the blade.
Since the blade is sharpened by reciprocating while supporting the ri, the blade receives contact pressure against the grinding surface only by the applied force t', so there is no unnecessary resistance.
The blade can be reciprocated easily, and the contact angle of the abrasive surface against the edge of the blade is constant, so even if an amateur sharpens, there is no risk of the blade becoming round, and the accurate sharpening angle , L of sharpness
Good sharpening is achieved.

[Brief explanation of the drawing]

Fig. 1 is a partially longitudinal side view showing an embodiment of the present invention, Fig. 2 is an end view of the same, Fig. 3 is an exploded perspective view, Fig. 4 is a partially longitudinal side view of the pedestal, and Fig. 5 is a partially longitudinal side view of the frame. The same end view and FIG. 6 are R road side views for explaining the sharpening. 1...Base is stand, 6...Adjustment member, 18
... Supporting member, 30 ... Grindstone, 40.
...Water sprinkling components. Patent applicant Tatsuo Okazaki Figure 5 Figure 6 Procedural amendment (method) % formula % 1. Indication of the case 1982 Patent 111F! 6136! No. 3, Person in charge of amendment 4, Date of amendment order: July 27, 1982 (shipment date)

Claims (5)

[Claims] (1) A cutter holder that supports the back of the cutler so as to be able to freely slide on the entire back side of the cutlery is equipped with a stand, and the holder is equipped with a grindstone arranged parallel to the stand with a desired gap, and the blade of the cutter is The cutter is inserted into the gap with the lower part of the cutter in contact with the lower surface of the whetstone, and the holder is configured to reciprocate and sharpen the cutter while supporting the back surface of the cutter on the stand. Ingredients. (2) The above gap allows the above holder to move 1% relative to the other so that the distance between the table and the lower surface of the grinding wheel can be adjusted! The sharpening tool for cutlery according to claim 1, characterized in that the sharpening tool for cutlery is variable by being provided with a means for sharpening. (3) The above-mentioned grindstone is provided on a support member having a rotation center n1
By rotating the support member, the receiver faces the abrasive surfaces with different roughnesses to the table, and - the support member is prevented from rotating. The sharpening tool for cutlery according to claim 1, characterized in that it is provided with a fixing means for fixing to. (4) The fixing means includes locking means for holding the support member at a predetermined rotation angle.
A sharpening tool for cutlery listed in the section. (5) The tool for sharpening cutlery according to claim 1, characterized in that means for supplying a sharpening liquid is installed above the whetstone.