JPS58194598A - Spiral pencil sharpener - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a pencil sharpener in which the sharpening portion of a pencil is spiral.

To be able to use pencils, I use a knife sharpener. Just as pencils come in several shapes and colors, the sharpener can have any shape as long as it can be used as a pencil. You can use a knife to make various shapes. However, when using a conventional pencil sharpener, most of the sharpeners have a round cross-section. So I came up with a different design. ``Why don't you carve it into a pointed conch shell, or a ``spiral''? If you use a knife, it is difficult to create a spiral that is round and swollen like a shell.
The concave spiral is relatively easy. Handy people don't mind, but for normal people it's difficult and tedious to shave like this every time.

The purpose of this invention is to create a pencil sharpener that anyone can easily use for normal use such as ``writing,'' and at the same time enjoy the ``spiral'' design.

The present invention will be explained as follows based on the drawings.

Figure 1 is a side view of this pencil sharpener in normal use.

As shown in Figure 8.9.10, a bearing /3 and a bevel gear // are fixed to the shaft of a spherical drill /2, and two % rotation grooves R are made symmetrically with the tapered cylinder as shown in Figure 6. Insert the spherical drill/2 into S. The reason why I chose the % rotation was because I thought that if I rotated it more than this based on the length of the groove, it would be difficult for the spherical drill to move in the groove. The blade of the spherical drill/2 is shown by the solid line in FIG. As shown in Figure 8, there are four blades, and the one near the adjacent blade is recessed and cannot be sharpened. The spiral grooves R and S are the 15th
As shown in the figure, bearing/3 and spring washer 10. /Lt fits. The spherical drill/2 moves in the spiral groove while rotating with the bevel gear//. The shaft of the spherical drill 12 has a bearing 13 and a spring washer 10. /14 and is perpendicular to the taper part of the tapered cylinder and facing the center of the circle.

The reason why the washer is made of spring material is to allow the spherical drill/2 to move smoothly into the spiral groove R8, regardless of whether it is thick or thin with respect to the tapered cylinder. The two spring washers are fixed to the innermost part of the outer rotating part of the bearing 1' ring, and the inside of the outer spring washer 4 is ground by the edge of the outer diameter of the bearing 3, so that the diameter of the helix is It sticks at the smallest point. The outside of the inner spring washer lθ comes into contact with the outer diameter end of the bearing /3 at the point where the spiral diameter is the largest.

Additionally, the rivet 3S maintains the thickness of the bearing between the outer and inner spring washers.

After attaching the spherical key IJ/2 to the tapered cylinder, mesh the two hollow bevel gears C-D of FIG. Bevel gear/9. The wa is fixed to the inner diameter side of the bear link/♂, and the outer diameter side of the bearing/is fixed to the inside of the cylinder/S. Bevel gear/c1. Wa, /
The meshing of / is a tight and twill pattern at the thinnest and thickest points with the tapered cylinder because the spherical drill /2 moves with the tapered cylinder.

Gear portion E of bevel gear 7 meshes with bevel gear 2/ in FIG. 14. The bevel gear 21 is the crank handle 2
It is fixed to 2. The crank handle 22 passes through the handle support 20 and rotates. The handle support 20 is fixed to the cylinder IS. Therefore, gear part E of bevel gear 7
and bevel gear 21 always mesh at a constant rate.

In FIG. 11, the pencil stopper consists of a semicircular plate fixed inside a cylinder 15 and a small cylinder with a flat tip. The tip of the pencil was made to stop at the point where Comrade Kiri was closest.

In Figure 13, there are two screw holes for attaching the knob 3 to the top of the cylinder/S. Main body/
The left half is the same color, but a different paint was used on the left half. In other words, the main body/
When the color of the cylinder Is is the same, it is ready for cutting.

The pencil holder 2 in Fig. 2 is a rotating disc 2A with a round center opening.
d: The tapered cylinder is fixed with a hexagonal nut 32 and a washer 3/ as shown in FIG. 16, and the tapered cylinder is rotated, and then fixed to the rotating disk 2 with a screw from above. It also rotates 90 degrees with respect to the tapered cylinder. This is to rotate the pencil shaft 90 degrees. This is because the two rotation stoppers 27 fixed to the rotating disc 2m rotate together with the pencil holder 2, and hit the two stoppers 2s attached to which disc side of the tapered cylinder. The ball in the ball joint 30 is pushed by the spring and moves through the groove J of the tapered cylinder ♂ in Fig. 7 through which the ball passes, and is stabilized by the round gates at both ends. The reason why the pencil holding part has a small diameter part with a sliding part I is so that even children's small hands can turn it.

What directly holds the pencil between the pencils is a ring-shaped rubber 3q shown in FIG. The spring 27 wraps around the two pencil scissors fulcrum parts 244 and pushes the pencil scissors 2♂ to close the rubber 314.The inside of the main body 7 is cylindrical as shown in Fig. 14.15. The cylinder 15 fits and moves here. In FIG. 20, the disk portion with the tapered cylinder is fixed inside the main body l. The rubber ring 7 in FIG. 6 protects which disc portion of the tapered cylinder having the same diameter as the cylinder /S when the cylinder 15 is moved to the left end in FIG. 20. Lower cylindrical part of main body/lower side of tapered cylinder, cylinder 1
There is a hole on the bottom side of 5, although it is not shown in the diagram, so that pencil shavings can enter the transparent shavings person 23. As shown in Figs. 17 and 18, the center of the spring plate of the waste stopper 7 protrudes from the transparent shavings member 23, and fits into the recess inside the main body, although it is not shown in the figure. The drawer part of the transparent shavings person 23 is flush with the outside of the main body. Also, the area surrounded by the dotted chain line on both the outside is slightly shaved so that it does not rub against the inside of the main body, so the shavings can be clearly seen through the eight windows on both sides of the main body. When the crank handle 22 is turned, the bevel gear 2/ turns and the bevel gear 7 turns. Next, the bevel gear // and the spherical aperture /2 rotate, and the bevel gear /'? turns. Since the bevel gear // is sandwiched between two bevel gears 7°/'1, it is pushed by the movement of the cylinder 15 and rotates the tapered cylinder ♦ while moving in the spiral groove R-8. Bevel gear/9
serves as a support since bevel gear // cannot be rotated without bevel gear 7 alone. The right end of the spiral groove is shown in FIG. 6 to prevent further movement of the bearing/3 and spring washers 10, 114. There is also a gap between the awls that prevents them from scraping each other when their cutting edges approach each other. Therefore, it is not designed to sharpen the lead of a pencil.

To use, press knob 3, move cylinder/S close to the pencil entrance, and stop. Grip the pencil scissors S and insert the pencil. When the tip of the pencil hits the pencil stopper/mu, release the pencil scissor knob S and fix the pencil. Viewed from the side, push knob 3 little by little while turning crank handle 22 to the right.

The F side drill/2 turns to the right, and the bottom drill turns to the left.

- Sharpen the pencil on the F side on the right side of the solid line, and on the bottom side on the left side. The drill/2 is pushed while rotating and moves in a spiral groove, so the cut portion becomes a spiral. Stop when the knob is facing away 9
Once finished, pull the knob back to the 11th position until it cannot be sharpened, turn the pencil holder 90 degrees to the left, and then
Apply the medicine again while turning the handle. I was able to sharpen it enough to write on it, but the cross section of the lead has four round concave parts and four pointed shapes. There are 4 stones where two lines can be formed when the distance is 5M.

This is not convenient for writing, so while turning the handle,
When the pencil holder 2 is rotated and returned to its original position, it has a round cross section and becomes a single line when written.

When producing this idea and sharpening a JIS pencil, first set the diameter of the spherical awl 12 to 10 IIm.

Adjust the movement of the cylinder/S so that the length of the taper part is 30 degrees, and make the spiral % rotation. It is better to make the tip of the core thicker than 04.

With this invention, it can be used as a pencil, and the sharpening part can enjoy the "spiral" design. Also "pencil stop"
There is no need to cut too much.

[Brief explanation of the drawing]

The drawings show an embodiment of the pencil sharpener of this invention, and FIG. 1 is a side view of the pencil sharpener that can be sharpened by the pencil sharpener of this invention.
Figure 2 is a side view of the pencil sharpener of this invention, Figure 3 is a horizontal view of the pencil sharpener of this invention, Figure 4 is a front view of the pencil sharpener of this invention, and Figure 5 is a pencil sharpener of this invention. Rear view of the sharpener,
Fig. 6 is a side view of the tapered cylinder, Fig. 7 is a front view of the tapered cylinder, Fig. 8 is a view of the entire awl viewed from below, Fig. 9 is a side view of the entire awl, and Fig. 10 is a front view of the entire awl. Fig. 11 is a cylindrical side sectional view, Fig. 12 is a cylindrical side view, Fig. 13 is a cylindrical plan view, Fig. 14 is a sectional view taken along arrow A-A in Fig. 2, and Fig. 15 is a sectional view of the cylindrical side. Turn the handle at A-A to stop the cylinder at the right end and see the arrow A2 sectional view, Figure 16 is a side view of the pencil holder part B-B, Figure 17 is a side view with transparent shavings inserted, and Figure 18
The figure is a rear view of the transparent shavings person, Fig. 19 is a side cross-sectional view of the pencil holder, and Fig. 20 is a cross-sectional view of the entire combination.Since they were drawn up to No. 191, diagonal lines are not included. /1 body, 2-pencil holding part, 3 one knob, q-hand toilet knob, S-pencil scissors knob, 6-pencil, warbebergia, and-tapered cylinder, 7-rubber ring, 10-inner spring washer, //-bevel gear, /2-spherical drill, /3
-Bearing, 1tJ-One outer spring washer, 15-Cylinder,
/6-Pencil stop, /Work waste stop, /1 bearing, /7-Pevel gear 1.20-Handle support t! tL2
/-Hevel gear, 22-crank handle 23-transparent shavings person, 2t, A-pencil scissors fulcrum, 2S-stone"'-1' 21-one rotation disk 1.2'/-rotation stopper, 2 and one pencil scissors, 29-spring, 30-ball class 31-washer, 32-hexagonal nut, 33 key,
3I4-rubber, 3S-rivet, A1-arrow, A2-arrow, C-gear surface of bevel gear lcI, D-bevel gear 7
On the gear surface of - Gear surface of bevel gear 7, F-1 Scrape and paint a little between the dotted and chain lines, Same as G-F, H pinch mounting hole, ■- Anti-slip part, J- Groove for ball to pass through, L -Blade, R-Spiral groove, same patent applicant as S-R Small country
Kochi11s Part 3 ■ 2, ”; / [

Claims (1)

Claims: There is a body (1) with a cylindrical part inside. Cylinder (/
S) has a crank 6 handle (1), a bevel gear (,2
/X? X/9). There is a spherical keeper), and a bearing (/3) and bevel gear (l/) are fixed to the shaft. The tapered cylinder (g) has a symmetrical spiral groove (R) (S). There is a pencil holder (2) that can rotate the pencil shaft by 90 degrees. The bearing part of the spherical key IJ (/2) has a spiral groove (R) (
The spherical drill (/2) fitted into S) moves in the spiral groove (R) (S). The cylinder (/S) moves around the cylindrical part of the main body (1). Gear part (D) of cylindrical (/S) bevel gear (/9)
) (C) is attached to the tapered cylinder (g) with a spherical drill (
/2) mesh with the bevel gear (l/). By turning the crank handle (=), the spherical aperture (/
2) rotates. By moving the cylinder ((5), the spherical drill (/2) is pushed and moves through the spiral groove (FL) (S), rotating the tapered cylinder (g). /2), the pencil held between the two spherical apertures (/2) creates two concave spirals.Then, the pencil holder (2) is rotated 90 degrees and the spherical aperture IJ (/2) is inserted again. 2) is moved to create four spirals.A pencil sharpener that allows you to use a pencil in this way.