Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B43—WRITING OR DRAWING IMPLEMENTS; BUREAU ACCESSORIES
  • B43L—ARTICLES FOR WRITING OR DRAWING UPON; WRITING OR DRAWING AIDS; ACCESSORIES FOR WRITING OR DRAWING
  • B43L23/00—Sharpeners for pencils or leads
  • B43L23/08—Sharpeners for pencils or leads in which the pencils or leads are sharpened mainly by rotational movement against cutting blades

Definitions

• the invention relates to automatic pencil sharpening using a cutting blade, and more specifically, to automate the manual adjustment function of pencil sharpening with an extremely simple mechanism and to adjust the length of the pencil lead.
• the function can be greatly improved so that the length of the pencil lead can be specified and sharpened.
• the present invention relates to a self-adjusting pencil sharpener body having the following.
• the applicant of the present application has disclosed in Japanese Patent Application Laid-Open Nos. 58-74399, 53-24833 and 80-184893 that a slit is provided in the main part of a pencil sharpener for forming a pencil insertion hole.
• the applicant has disclosed in Japanese Patent Application Laid-Open No. 31233/1988 that an adjusting means for making the porosity of the main body portion forming the pencil insertion hole non-uniform and for causing the eccentricity of the pencil insertion hole to be provided.
• the pencil sharpeners provided are cleaved. However, the pencil sharpener etc.
• this kiyoshi is to automate the manual adjustment function of the conventional pencil sharpener with a simple structure, and to add the length adjustment members 5 and 5 'on top of that. If added, the pencil core will be cut to a specific length and will not provide a self-adjusting pencil sharpener with an excellent cutting effect that can prevent over-sharpening.
• the pencil sharpener is a specific structure, it is possible to improve the function of adjusting the pencil sharpening by positively decentering the axis of the pencil.
• the present inventors have found out that it is possible to automate the adjustment function for sharpening a pencil finely, and have completed the present invention.
• the automatic adjustment pencil sharpener of the present invention in a pencil sharpener obtained by attaching the cutting blade 2 to a honko having a pencil insertion hole 3, the axis of the pencil is automatically inserted into the pencil insertion hole 3. It is characterized in that an eccentric member 4 for providing eccentricity is provided.
• a means for causing the eccentricity of the axis of the pencil is provided in the pencil insertion hole 3, so the pencil was inserted into the pencil insertion hole 3 and pushed in.
• the pressing force moves the center D 'of the pencil tip to the center D of the insertion direction side 3a of the pencil insertion hole 3, so that the vertex S of the pencil tip is obliquely below the cutting blade 2.
• the slant of the cutting blade 2 It is pushed back down.
• the pencil automatically shifts from being sharply cut to being sharply sharpened, and then not being sharpened. Therefore, even if no manual adjustment means such as a dial screw is provided especially for such an eccentric action, the sharpening condition of the pencil is automatically adjusted, and the pencil is sharply cut and the core tip is cut. Can be sharpened neatly. Further, if used, the pencil can be sharply cut or thinned by utilizing the elastic resistance of the eccentric member 4. Further, by adding the length adjusting member 5 or 5 ', it is possible to set the length of the pencil lead to a desired length, and to prevent sharp cutting. It is possible.
• the self-adjusting pencil sharpener of the present invention can perform fine cutting only by attaching an extremely simple additional device (the eccentric member 4), and can sharpen the pencil neatly.
• an extremely simple additional device the eccentric member 4
• FIG. 1 is a plan view showing an embodiment of the automatic adjustment pencil sharpener of the present invention
• FIG. 2 is a side view of FIG. 1
• FIG. 3 is a sectional view taken along the line AA ′ of FIG. 1
• FIG. 5 is a schematic diagram for explaining the movement of the center line of the pencil when viewed from above
• FIG. 6 is *.
• FIG. 7 is a plan view showing a second embodiment of the self-adjusting pencil sharpener for kishikari
• FIG. 7 is a cross-sectional view taken along the line BB ′ of FIG. 6
• FIG. 9 is a cross-sectional view taken along the line CC ′ of FIG. 8, FIG.
• FIG. 10 is a plan view showing a fourth embodiment of the automatic adjustment pencil sharpener of the present invention, and FIG. Fig. 10 is a cross-sectional view taken along the line W-W '.
• Fig. 12 is a view showing an example of an eccentric member.
• Fig. 13 is a pencil sharpener shown in Fig. 1, with a pencil lead length adjusting member 5 attached.
• Fig. 14 Fig. 13 is a side view of Fig. 13 and Fig. 15 is a cross-sectional view of X-X '
• Fig. 18 is a cross-sectional view of Y-Y' of Fig. 13, and Fig. 17 is for adjusting the length of pencil lead.
• FIGS. 18 to 24 are views showing an example of the member 5, FIGS.
• FIGS. 25 to 28 are perspective, plan, side and front views, respectively, of a dial-shaped pencil lead length adjusting member 5 ′, which is shown in FIGS. 29 to 35.
• the figure shows a seventh embodiment of the invention in which a dial-type pencil lead length adjusting member 5 'is attached as in the sixth embodiment, and FIG. 2S is a front view, Fig.
• FIG. 30 is a plan view
• Fig. 31 is a plan view with the cutting blade 2 removed
• Fig. 32 is a side view
• Fig. 33 is a rear view
• Fig. 34 is a pencil sharpener storage box.
• FIG. 35 is a perspective plan view of FIG. 34.
• Fig. 1 to Fig. 3 show the basic pencil sharpening body of Honkiaki.
• the pencil sharpener * body 1 is used as a means for decentering the center line of the pencil inserted into the pencil insertion hole 3.
• the eccentric member 4 is provided so that the eccentric line of the pencil is eccentric when the pencil is simply set.
• Fig. 1 shows a plan view of the pencil sharpener
• Fig. 2 shows a side view
• Fig. 3 shows the AA 'new view of Fig. 1.
• FIG. 4 is a principle diagram for explaining the adjusting function of the above-mentioned uninvented automatic adjustment pencil sharpener.
• the eccentric member 4 for the pencil axis is provided at the tip 3a in the insertion direction of the pencil insertion hole 3, the center D 'of the inserted pencil tip is provided. Is not set at the center D of the tip 3a of the pencil insertion hole 3 on the pencil insertion direction side, but is set eccentrically to D '.
• the pencil is inserted into the pencil insertion hole 3 by applying force, and the pencil is rotated and then sharpened, so that the center D ′ of the tip of the pencil is in the direction from D ′ to D ( (In the figure, in the direction of the arrow), the vertex S, which is vertically above the center D 'of the tip of the candy brush, is gradually pushed up to the cutting edge of the cutting blade 2. Then, it comes into contact with the cutting edge of the cutting blade 2 and is cut, and is further pushed up by the slit outside the cutting blade 2, so that it is cut more and more effectively.
• the pencil tip is sharpened with the rotating motion of the pencil, and the force that can cause the pencil to be sharpened too sharply Hold the lead brush by hand to rotate the pencil again
• the force to insert when changing changes the tip of the pencil
• the portion is pushed upward by the elasticity of the eccentric member 4 and is eccentrically inclined downward of the cutting blade 2. That is, the center of the pencil returns from D to D ', and the vertex S is pushed down by the eccentric part village 4 obliquely below the cutting blade 2.
• the pencil is moved by these two continuous operations. ⁇ It returns from a state that can be sharpened to a state that cannot be sharpened after a state of being sharpened finely, and if the pencil is gently turned, the pencil easily spins. By repeating this operation, the pencil is sharpened sharply, and can be sharpened by spinning lightly.
• FIG. 5 shows a schematic view of the movement of the pencil center line of the pencil in this case as viewed from above.
• the figure is exaggerated for ease of understanding.
• the intersection of the pencil's center line Z 'and the cutting blade 2 gradually moves from I' to I, but the pencil always moves to the center line Z.
• 'And Z can be cut to the intersection of Z and the cutting edge of cutting blade 2.
• the center line Z of the pencil may move in the direction of inserting the pencil, but if the force for pushing the pencil is weakened, the tip of the pencil is pushed back by the elasticity of the eccentric member 4.
• the cutting blade 2 is eccentrically obliquely below the cutting blade 2. That is, the center line of the pencil is in the Z-pencil insertion direction. After passing Z from the side, it moves to Z ', and the cutting position also moves back to I' after passing I from the side of the pencil insertion direction of I, so the pencil tip will not be sharpened. The pencil spins easily. By repeating this operation, the pencil is sharpened sharply, and the pencil can be spinned lightly and sharpened sharply. When the pencil is sharply pushed into the pencil insertion hole 3 and sharpened, the center line of the pencil is pushed in the direction from D 'to D as shown in Fig.
• the eccentric line of the lead brush is eccentric by using the eccentric member 4, so that the cutting surface of the pencil and the cutting blade 2 are separated.
• the dressing can be automatically adjusted, and the situation where the tip of the pencil hits the back surface of the cutting blade and breaks cannot occur.
• the apex S of the tip of the pencil is in contact with the cutting edge of the cutting blade 2: e. Since the surface can be cut almost evenly to the left and right, it can be cut smoothly and finely.
• FIG. 7 is a sectional view taken along the line BB ′ of FIG.
• FIG. 8 and FIG. 9 are views showing a third embodiment of the * automatic rough pencil sharpener of the invention.
• the eccentric member 4 is formed in the longitudinal direction of the pencil sharpener, and its tip pushes the pencil tip obliquely downward of the cutting blade 2 to cause eccentricity of the pencil. It is shaped to be tight.
• FIG. 9 is a cross-sectional view taken along the line CC ′ of FIG.
• FIGS. 10 to 12 are views showing a fourth embodiment of the automatic adjustment pencil sharpener of the present invention.
• the eccentric member 4 has the shape as shown in FIG. 12, and the eccentric member 4 is attached to the pencil sharpener together with the cutting blade 2. It is done.
• FIG. 11 is a cross-sectional view taken along the line W-W 'of FIG.
• the eccentric member 4 can be used in any manner that causes deformation by inserting a lead brush into the pencil insertion hole 3 and applying force. Yes, for example, any elastic material such as metal or plastic can be used.
• the eccentric member 4 is provided at the tip of the pencil insertion hole 3 so as to cause eccentricity.
• the means, shape, and position thereof are not particularly limited.
• the eccentric member 4 may be formed in the same body as the pencil sharpener body, or may be separately attached to the pencil sharpener body.
• FIG. 13 to FIG. 17 are examples, and are views showing a fifth embodiment of the present invention. That is, in FIG. 13, a pencil lead length adjusting member 5 as shown in FIG. 17 is attached to the automatic adjustment pencil sharpener of FIG. 1.
• the length adjusting member 5 has, for example, two or several steps, and slides left and right or up and down with respect to the pencil insertion direction of the pencil insertion hole 3.
• the self-adjusting pencil sharpener can be attached to the main body as much as possible.
• FIG. 14 is a side view of FIG. 13
• FIG. 15 is a cross-sectional view of the same X-X ′
• FIG. 18 is a cross-sectional view of the same Y-Y ′.
• FIG. 7 shows an example of a pencil lead length adjusting member 5.
• the material of the self-adjusting automatic pencil sharpener may be any material as long as it is commonly used in the art, but in order to mold the same with the pencil sharpener body, it is necessary to use a brush. It is preferable to manufacture with sticks.
• the eccentric member 4 is inserted with a pencil as a means for eccentricizing the axis of the pencil inserted into the lead brush insertion hole 3.
• the lead of the lead pen inserted into the hole 3 is set to be pressed, but if it conforms to the principle of Takiaki, the eccentricity of the inserted pencil's core wire
• the part to be pressed by the eccentric member 4 for causing the eccentricity is not limited to the core of the pencil. That is, the same effect can be obtained when the eccentric member 4 is set so as to press the wooden part of the pencil.
• pressing the xylem to decenter it is preferable because the pencil core will not break.o
• FIGS. 18 to 24 show the automatic adjustment pencil sharpener of the present invention.
• FIG. 13 is a view showing a sixth embodiment in which the eccentric member 4 has a structure in which the thick part of the pencil is pressed to decenter the center line of the pencil inserted into the pencil insertion hole 3.
• Fig. 18 is a front view of the pencil sharpener viewed from the direction of the pencil insertion hole 3
• Fig. 13 is a plan view
• Fig. 20 is a plan view with the cutting blade 2 removed
• Fig. 21 is the right side.
• FIG. 22 is a rear view.
• the eccentric member 4 is formed near the center of the pencil sharpener main body and at a position where the thick part of the inserted pencil is pressed through the pencil insertion hole 3.
• FIG. 23 is a perspective view when inserted into a storage box
• FIG. 24 is a transparent plan view of FIG.
• the additional projections 4 'and 4''' were attached to the pencil sharpener body 6 by the pencil sharpener body 1.
• the shapes of the additional projections 4 ′ and 4 ′ ′ formed on the eccentric member 4 may be square, circular, oval, elliptical, or other shapes. It may be formed integrally with the member 4.
• the additional projections 4 ′ and 4 ′ ′ are formed in a body, they may be formed in, for example, an L-shape or the like.
• FIG. 25 to 28 show the length adjustment of the dial pencil lead. It is a figure which shows one Embodiment of the node member 5 '.
• FIG. 25 is a perspective view
• FIG. 28 is a plan view
• FIG. 27 is a side view
• FIG. 28 is a front view.
• This dial-shaped pencil lead length adjustment member 5 ' is approximately 100 pieces of the dial. Is set so that the pencil can be sharpened in three stages, short, medium and long, using a lead brush, but if the entire circumference is used, the length of the lead
• the adjustment member 5 ′ can be formed, and the contact portion with the pencil lead is formed in a spiral shape so that the adjustment can be performed steplessly. Notches, protrusions, etc. are provided on the side surface of the dial-shaped pencil lead length adjusting member 5 'to facilitate its rotation or stop at an appropriate position. Is also good.
• FIG. 29 to FIG. 35 show the present invention in which the dial-shaped pencil lead length adjusting member 5 ′ is incorporated in the sixth embodiment of the present invention to provide a surplus effect.
• This is the seventh embodiment.
• Fig. 29 is a front view of lead drilling viewed from three directions of the pencil insertion hole
• Fig. 30 is a plan view
• Fig. 31 is a plan view with the cutting blade 2 removed
• Fig. 32 is a side view.
• 33 is a rear view
• FIG. 34 is a perspective view when inserted into the pencil sharpener storage box 6
• FIG. 35 is a perspective plan view of FIG.
• the pencil sharpener storage box 6 of the sixth embodiment and the seventh embodiment of the present invention can be used in a single form as shown in the figure, but this can be achieved by removing the pencil shavings. Case to put i 5
• the material of the automatic adjustment pencil sharpener storage box 6 and the casing of the present invention may be any of those that are commonly used in the art. It is preferable to manufacture with plastics.
• the automatic adjustment pencil sharpener of the invention can automatically adjust the degree of sharpening of the pencil, accessories such as screws for manual adjustment, a cam mechanism, dials, or rods are required. Since it is not necessary, it is possible to make a wide variety of pencil sharpeners in an appropriate casing. Furthermore, it goes without saying that modifications and additions of configurations known in the art can be made. ⁇

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Applications Claiming Priority (2)

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ID=16108686

Family Applications (1)

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Citations (1)

Family Cites Families (1)

• 1986
  • 1986-08-20 JP JP19263786A patent/JPS62122800A/ja active Granted
  • 1986-08-21 WO PCT/JP1986/000431 patent/WO1987001077A1/ja unknown
  • 1986-08-21 CN CN198686105490A patent/CN86105490A/zh active Pending

Patent Citations (1)

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