JPH0123737Y2 - - Google Patents

Description

[Detailed Description of the Invention] (Industrial Field of Application) The present invention relates to a scissors case with a grinding wheel installed therein.

(Prior Art) A sharpening device for scissors that simultaneously sharpens the cutting edges of both blade bodies of scissors is disclosed in Japanese Patent Publication No. 57-5674, which has a main body and a pair of sharpeners. is in the shape of a round pin with a smooth surface, and is fixed to the main body at a predetermined angle to each other so as to slide along the inside and outside of the cutting edge of the scissors blade, There are two pairs of sharpeners corresponding to one blade of the scissors, and the active surfaces of the scissors are arranged in a straight line with each other to process the inside of each of the two blades of the scissors. There are scissor sharpening devices arranged offset from each other in the direction.

(Problem to be solved by the invention) The scissors sharpening device described above is constructed separately from the scissors, so when sharpening the scissors, the scissors must be sharpened with the sharpener placed at an angle that matches the angle of the cutting edge of the scissors. Since the cross-sharpening device requires a device and is stored separately from the scissors when it is not in use, there is a risk of it being lost.

(Means for Solving the Problems) The present invention has been made for the purpose of solving the above-mentioned problems, and involves closing scissors whose double-edged bodies have equal cutting edge angles and storing the blade bodies in a sheath-like case. For scissors that are stored in the case, a cylindrical sharpening stone is installed inside the case, allowing anyone to sharpen the cutting edge easily and accurately without disassembling the scissors, and when not in use, the scissors can be stored inside the case. In addition to storing the scissors safely, the case from which the scissors are taken out can be used as a sharpener for sharpening the scissors.

DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of a scissors case incorporating a grindstone according to the present invention will be described below with reference to the accompanying drawings.

FIG. 1 shows a state in which scissors B are housed in a scissors case A according to the present invention.

As shown in Figure 2, the case body 1 is made of resin and is injection molded by dividing into two parts approximately at the center in the thickness direction.
a and 1b are fused together at the peripheral edges of the dividing surfaces, and are integrally molded into a sheath shape so that the inside forms the hollow part 2 for housing the blade part of the scissors B. The bottom wall portion 4 in the thickness direction has a cantilever-shaped locking rod portion 8 that is separated from the side wall portions 5 and 6 by slits 7 and 7 and has one end connected to the case body 1.
It is becoming.

A locking protrusion 9 protrudes from the longitudinal center portion to the open end 3 of the case body 1 in the direction of the blade housing hollow portion 2 on one outer edge of the locking rod portion 8. The grooves provided near the locking rod part 8 on the inner surfaces of the side walls 5 and 6 of the case body 1 are the insertion guide grooves 11 of the protruding parts at both ends of the coupling shaft 10 of the scissors B. 11.

The upper part of the case body 1 slightly forward of the opening end 3 has an inner wall surface perpendicular to the side wall surface of the case body 1, and has a width sufficiently larger than the thickness of the blade portion 12a [and 12b] of the scissors B. An upper notch groove 13 is provided at right angles to the longitudinal direction of the case body 1, and the inner wall surface of the notch groove 13 on the front side of the case body 1 is cut by the blade portion of the upper scissors B during the shearing process. 12
an upper reference surface 15 on which the inner surface 14 abuts and slides;
The notched groove 13 has a lower end thereof cut so that an intermediate notched groove 16 that is inclined forward and downward with respect to the upper reference plane 15 by the cutting edge angle θ of the blade portion 12a is directed forward by the same width as the width of the notched groove 13. Notch, and then insert the tip of the locking rod part 8 in the same width and parallel to the upper notch groove 13.
Cut to near the bottom to form a lower cut groove 17,
In the process of shearing the inner wall surface of the cut groove 17 on the side of the opening end 3 of the case body 1, a lower portion is located on the same plane as the upper reference surface 15 on which the inner surface 18 of the blade portion 12b of the lower scissors B comes into contact and slides. The reference plane 19 is set as the reference plane 19 (see Figs. 4 and 6). At the midpoint between the upper reference plane 15 and the lower reference plane 19, the cutting edge angle θ of the scissors B shown in Fig. 6 is set with respect to both reference planes 15 and 19. Ribs 21 and 22 are erected on the inner side of the case member 1b so that the cylindrical polishing grindstone 20 crosses the upper notch groove 13 and the lower notch groove 17 at the position of the intermediate notch groove 16.
(See FIG. 3) is fitted into the notched grindstone positioning parts 23 and 24 in alignment with the grindstone 20, and then the ribs 25 and 26 provided at symmetrical positions on the case member 1a
When viewed in the thickness direction of the case body 1 as shown in FIG. 4, the grindstone 20 is fixed closer to the case member 1b than the central plane, thereby forming the case A of the scissors of the present invention.

Note that the scissors B targeted in this invention are set so that the blade edge angles θ of both blade portions 12a and 12b are the same angle.

(Function) Case A of the scissors of the present invention constructed as described above,
Insert the scissors B into the blade housing hollow part 2 and the blade parts 12a, 12.
Insert with b closed and remove the blade parts 12a, 12.
It safely covers the outer periphery of the scissors B, and the locking rod part 8 is
When inserting the scissors B, the scissors B bends outward due to interference between the locking protrusion 9 and the blade, and when the scissors B is in the specified position,
The inner end of the locking rod 8 engages the blade base of the scissors B to hold the scissors B in that position, and in this process the scissors B
Both ends of the coupling shaft 10 are fitted into guide grooves 11, 11 and guided.

Next, when sharpening the scissors B, remove the scissors B from the case A, hold the scissors B with your right hand in the same way as when using the blade, and hold the blade part 12 as if you were shearing the whetstone 20.
a, 12b into the upper notch groove 13 and the lower notch groove 17, respectively, and the inner surface 1 of the upper blade portion 12a.
4 to the upper reference plane 15, and the lower blade part 12
When the inner surface 18 of b is brought into close contact with the lower reference surface 19 and the cutting edge is brought into contact with the grindstone 20, the cutting edge of the blade portions 12a and 12b is positioned exactly against the grindstone 20 as shown in FIG. The outer periphery of the grindstone 20 and the cutting edge angle θ correctly match. At this time, since the grindstone 20 is attached to the case member 1b side, the effective areas of the upper reference surface 15 and the lower reference surface 19 that come into contact with the inner surfaces 14 and 18 of the blade portions 12a and 12b of the scissors B are increased, making positioning easier. It's easy to do.

Next, while maintaining this state, open and close the scissors B with your right hand, and in conjunction with this movement, move the scissors B in a direction perpendicular to the case A held in your left hand so that the grindstone 20 and the cutting edge are in contact with the appropriate pressure. By doing so, both cutting edges are sharpened to the correct cutting edge angle, and the cutting edge can be polished to a good cutting quality.

(Effects) As explained above, this invention provides upper and lower reference planes on the same plane on the scissors case, on which the inner surfaces of the scissor blade bodies can come into contact, and between these two reference planes, the cutting edge angle By providing the whetstone tilted by an angle equal to , the whetstone is in the correct position relative to the cutting edge of the scissors during the sharpening operation, so that even an unskilled person can sharpen the scissors with optimal results. In addition, the mounting angle of the whetstone relative to the upper and lower reference planes is fixed in a constant state according to the blade edge angle of the scissors stored in the whetstone case, so it is possible to always sharpen to an accurate blade edge angle, and the scissors can be easily sharpened when not in use. Since the scissors are stored in the case, there is no inconvenience caused when sharpening the scissors due to loss of the case, etc., which has excellent practical effects.

[Brief explanation of drawings]

Fig. 1 is a front view of the scissors stored in the case, Fig. 2 is a partial perspective view showing the open end side of the case, Fig. 3 is a partial front view showing the mounting part of the grindstone, and Fig. 4 is the front view of the scissors stored in the case. 3 is a plan view, FIG. 5 is a partial perspective view showing the state of use, and FIG. 6 is a central vertical sectional view in the state shown in FIG. A...A case of scissors with a grinding wheel installed inside, B...
... Scissors, 1 ... Case body, 1a, 1b ... Case member, 2 ... Blade housing hollow part, 3 ... Open end,
13... Upper notch groove, 14... Inner surface of blade portion 12a, 15... Upper reference surface, 16... Intermediate notch groove, 17... Lower notch groove, 18... Blade portion 12
Inner surface of b, 19...lower reference surface, 20...grinding wheel.

Claims (1)

[Scope of utility model registration request] In the upper part slightly forward of the opening end 3 of the sheath-like case body 1 whose interior is a hollow part 2 for housing the blade part of the scissors B,
The case body 1 is perpendicular to the longitudinal direction of the case body 1.
An upper notch groove 13 whose front inner wall surface is an upper reference surface 15 on which the inner surface 14 of the upper blade portion 12a comes into contact and slides during the shearing process by the scissors B.
is provided at the front lower part thereof, and the inner surface 18 of the lower blade portion 12b slides into contact with the inner wall surface on the open end 3 side of the case body 1 in parallel with the notch groove 13 during the shearing process by the scissors B. A lower notched groove 17 is provided with a lower reference surface 19 located on the same plane as the upper reference surface 15, and an intermediate notched groove 1 is formed between the lower end of the upper notched groove 13 and the upper end of the lower notched groove 17.
6, and the cylindrical polishing grindstone 20 is fixed at the intermediate notch groove 16, across the upper notch groove 13 and the lower notch groove 17, and tilted by the cutting edge angle θ of the scissors B. A scissors case with a unique polishing whetstone inside.