JPS6150748B2 - - Google Patents

Description

[Detailed Description of the Invention] (a) Industrial Application Field This invention relates to an instrument for sharpening the edge of scissors.

(b) Conventional technology and its problems Scissors have a cutting slope along the blade edge, and conventionally, when sharpening this surface, the angle between the blade and the whetstone surface must always be kept constant, which is difficult. , required skill. SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide a tool that can perform polishing while keeping the angle of the cutting slope of the blade edge constant. Another object of the present invention is to provide a polishing tool that can change the polishing angle in accordance with the angle of the cutting slope that differs for each pair of scissors.

(C) Structure of the Invention This invention consists of a rotary body with elongated holes extending approximately in the radial direction of a rotating circle and a polishing body with holes that are relatively wider than the rotary body, and the rotary body overlaps the polishing body. The rotating body is rotatably coupled to the abrasive body, and the rotating body is rotatable between at least an angle that allows the elongated hole portion of the rotating body to communicate with the wide hole portion of the abrasive body; The polishing member is provided in the polishing body at a position such that the polishing surface of the polishing member crosses the slotted hole when the slotted hole and the wide hole are communicated with each other.

(d) First embodiment of the invention The drawings show the first embodiment of the invention, in which Fig. 1 is a partial perspective view of scissors applied to a scissors polishing tool, and Fig. 2 is a partial perspective view of scissors applied to a scissors polishing tool. Front view of polishing instrument, 3rd
The figures are a sectional view taken along the line A--A in FIG. 2, FIG. 4 is a front view of the rotating body, and FIG. 5 is a front view of the polishing body.

This scissors polishing tool consists of a polishing body 1 and a rotating body 2. Both bodies 1 and 2 have a thin disk shape, and the diameter of the polishing body 1 is slightly larger than the diameter of the rotating body 2. A protrusion 3 is formed around the entire circumference of the polishing body 1, and the rotating body 2 is fitted inside this protrusion 3. As this fitting structure, flanges 4 protrude toward the center from two places on the protrusion 3 of the polishing body 1, and a notch 5 corresponding to the flanges 4 is formed on the rotating body 2 side. The rotating body 2 is fitted onto the polishing body 1 so that the notch 5 of the rotating body 2 is aligned with the flange 4 of the polishing body 1.
By rotating the rotating body 2, the rotating body 2 is rotatably coupled to the polishing body 1.

The rotating body 2 has two continuous elongated holes 6 and 7. One of the elongated holes 6 extends approximately in the semi-longitudinal direction of the rotating circle of the rotating body 2. The other elongated hole 7 also extends substantially in the radial direction of the rotation circle and in the opposite direction to the one elongated hole 6. In addition, both the slotted holes 6 and 7 are deviated from the exact radius so that the side edges 8 and 9 on the opposite sides of the slotted holes 6 and 7 form a straight line passing through the center of rotation. There is. On the other hand, the polishing body 1 has two wide hole portions 13 and 14 that are relatively wider than the elongated hole portions 6 and 7. The two wide holes 13 and 14 are continuously drilled and are formed in a fan shape that widens in opposite directions in the rotation radial direction.

The rotating body 2 has at least its elongated holes 6 and 7.
can be rotated relative to the polishing body 1 between angles that allow the wide holes 13 and 14 of the polishing body 1 to communicate with each other.

A rod-shaped polishing member 16 made of ceramic is attached to the polishing body 1, passing through the center of rotation and diagonally spanning both wide hole portions 13, 14. The polishing member 16
When the elongated holes 6 and 7 of the rotating body 2 and the wide holes 13 and 14 of the polishing body 1 communicate with each other, the polishing member 16
The polishing surfaces 17, 17 of the polishing surfaces 17, 17 are located so as to cross the elongated holes 6, 7.

(E) Effect of the first embodiment By aligning the flanges 4, 4 of the polishing body 1 with the notches 5, 5 of the rotary body 2 and rotating the rotary body 2, the rotary body 2 can be rotated to the polishing body 1. is combined with
The rotational position of the rotating body 2 relative to the polishing body 1 varies depending on the angle of the cutting slope 18 of the blade edge 15 of the scissors 10 to be polished. In other words, the cutting slope angle of the blade edge 15,
The angle a formed by both side edges 8, 9 of the elongated holes 6, 7 of the rotating body 2 and the polishing surface 17 of the polishing member 16 must be matched. Therefore, when polishing a cutting slope with a relatively small angle, the rotating body 2 in FIG. 2 is turned to the right, and when polishing a cutting slope with a relatively large angle, the rotating body 2 is turned to the left. After the angles are roughly adjusted, the blade bodies 11, 11 of the scissors 10 are opened slightly and communicate with the elongated hole portions 6, 7 and the wide hole portion 1.
3, 14, and close the blades 11, 11 while bringing the back surfaces 12 of the blades 11, 11 into contact with the side edges 8, 9 of the elongated holes 6, 7, the cutting slope 18 of the blades is pressed against the polishing surface 17 of the polishing member. While maintaining that state and opening and closing the blade, use the scissors 1.
By moving 0 back and forth, the blade edges 15, 15 are polished.

(f) Effects of the first embodiment Since this embodiment has the above-described structure and operation, by rotating the rotating body 2, the polishing angle can be changed to correspond to the angle of the cutting slope that differs for each scissor. It has this effect. Further, it has the effect that two blade bodies of the scissors can be polished at the same time.

(g) Second embodiment of the invention In a second embodiment (not shown), in the rotating body 1 and the polishing body 2 of the first embodiment, one elongated hole portion is approximately the radius of the rotation circle of the rotating body. This scissors polishing tool is provided so as to extend in the direction of rotation, and has one wide hole formed in a fan shape that expands in the rotation radius direction.
That is, the two elongated holes 6, 7 and the wide holes 13, 14, which were provided in the first embodiment, are reduced to one each.

In the second embodiment, only one cutting slope of the scissors blade can be polished at a time, but the first embodiment is different in that the polishing angle can be changed to correspond to the angle of the cutting slope that differs for each scissor. The effect is the same.

(H) Effects of the Invention This invention has the effect that since the rotating body is rotatably coupled to the polishing body, the polishing angle can be changed in accordance with the angle of the cutting slope 18 that differs for each scissor.

[Brief explanation of the drawing]

The drawings show a first embodiment of the present invention, in which FIG. 1 is a partial perspective view of a scissors polishing device with scissors applied, FIG. 2 is a front view of the scissors polishing device, and FIG. 3 is a front view of the scissors polishing device.
The figures are a sectional view taken along the line A--A in FIG. 2, FIG. 4 is a front view of the rotating body, and FIG. 5 is a front view of the polishing body. DESCRIPTION OF SYMBOLS 1... Polishing body, 2... Rotating body, 6... Elongated hole part, 7... Elongated hole part, 10... Scissors, 11... Blade body, 13... Wide hole part, 14... Wide hole part , 15
...blade edge, 16...polishing member.

Claims (1)

[Claims] 1. Consisting of a rotating body with long and narrow holes extending in the radial direction of the rotating circle and a polishing body with relatively wider holes, the rotating body overlaps the polishing body and performs polishing. It is rotatably connected to the body,
The rotating body can rotate at least between an angle that allows the elongated hole portion to communicate with the wide hole portion of the polishing body, and when the elongated hole portion and the wide hole portion communicate with each other, the polishing member A scissors polishing tool characterized in that a polishing member is provided on the polishing body at a position such that the polishing surface thereof crosses the elongated hole. 2. The scissors polishing device according to claim 1, wherein the polishing member is a rod-shaped ceramic. 3. One elongated hole is provided to extend substantially in the radial direction of the rotation circle of the rotating body, and one wide hole is formed in a fan shape that spreads in the rotation radial direction. A scissors polishing tool according to claim 1. 4 The two elongated holes extend in opposite directions approximately in the radial direction of the rotation circle of the rotating body, and the opposing side edges of both elongated holes extend in a straight line through the center of rotation. Claim 1, characterized in that both the elongated holes are biased so that the wide holes are formed in a fan shape that widens in opposite directions in the rotation radial direction. Scissor sharpening equipment.