JP3068559U - Double-sided inkstone - Google Patents

Abstract

(57) [Summary] [Problem] To provide a double-sided inkstone that is lightweight and easy for children to use. The surface is formed on an inkstone surface 2 having a blackened portion 4 and a sump portion 5, and the rear surface is formed on a blackhead surface 3 provided with a ink basin 6 and a black wiping portion 7. In the double-sided inkstone 1, the blackened portion is composed of a synthetic resin plate 9 mixed with a mineral or other hard fine material 8, and the rest of the double-sided inkstone is made of a lightweight synthetic material free of the hard fine material. Made of resin. A brush leveling unit 10 having a depth such that the tip of the brush is placed on the surface of the ink pond is provided, and a screen-like ink removing unit 7 is provided in the ink pond. A pair of anti-slip projections 13 is provided on each of the opposed portions of the peripheral edge 12 of the ink pond surface, and cutout grooves 14 for removing the ink in the ink pond portion are formed symmetrically at two locations on the peripheral edge.

Description

[Detailed description of the invention]

[0001]

[Technical field to which the invention belongs]

 The present invention relates to a synthetic resin double-sided inkstone mainly used as a teaching material.

[0002]

[Prior art]

 Conventionally, as a double-sided inkstone made of synthetic resin, a thermosetting resin molded by mixing hard mineral particles such as garnet powder or glass fiber short fibers with a thermosetting resin (Japanese Utility Model No. 3-46959) is known. No.). In this type of double-sided inkstone, the front side is formed on an inkstone surface with a blackened portion and a sump portion, and the backside is formed on a sumiike surface with a blackened portion and a blackened portion. The use surface is selected.

[0003]

[Problems to be solved by the invention]

 The conventional double-sided inkstone made of synthetic resin is entirely made of thermosetting resin mixed with the hard particles, etc., and the specific gravity of these hard particles is quite large. In consideration of when children go to school by packing this in a calligraphy box, it is desirable to further reduce the weight. When using ink in the ink pond, it is necessary to smooth the brush tip while wiping out the ink contained in the brush to an appropriate amount, but it is not easy for children to perform this operation in the black ink brush. Also, the remaining ink used in the ink pond is discarded, but it is not easy to cut due to its viscosity and drips along the inkstone surface, which may stain clothes.

The purpose of the present invention is to provide a double-sided inkstone that is lightweight and easy for children to use.

[0005]

[Means for Solving the Problems]

 In the present invention, a synthetic resin double-sided inkstone with the front side formed on the inkstone surface with the blackened portion and the ink reservoir and the backside formed on the inkstone surface with the blackened portion and the blackwashed portion. In addition, the blackened portion is made of a synthetic resin plate mixed with minerals or other hard fine materials, and the remaining portion of the double-sided inkstone is formed of a lightweight synthetic resin free of the hard fine materials. I got a double-sided inkstone. A brush leveling part with a depth enough to hold the tip of the brush is provided on the surface of the ink pond, and a screen-like ink brushing part is provided on the ink pond to easily adjust the brush tip when using ink. It is possible to provide a pair of anti-slip projections at opposite sides of the periphery of the ink pond surface, and to form two notch grooves symmetrically at the periphery to remove the ink at the ink pond portion. , Easy to handle.

[0006]

[Embodiment of the invention]

 DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to the drawings. In FIGS. 1 and 2, reference numeral 1 denotes a thermoplastic resin or a thermosetting resin having an inkstone surface 2 on the front side and a black ink surface 3 on the back side. The inkstone surface 2 is provided with a small black rubbing part 4 and a low ink sump part 5, and the ink basin surface 3 includes a black ink part 6 for storing ink and a brush. An ink wiping unit 7 for adjusting the amount of ink is provided.

[0007] Such a configuration includes a conventional double-sided inkstone made of a synthetic resin, but in the present invention, the blackened portion 4 is made of a hard mineral powder such as garnet, a ceramic powder, a glass fiber or a carbon fiber. A plate 9 made of a thermoplastic or thermosetting synthetic resin mixed with a hard fine material 8 such as a short fiber, and the remaining portion of the double-sided inkstone 1, that is, a portion other than the blackened portion 4 is formed by the plate portion 9. It was formed of a lightweight thermoplastic or thermosetting resin with a lower specific gravity. The plate 9 is prepared in a separate process in advance, and is set in a molding machine for the double-sided inkstone 1 and filled with a thermoplastic or thermosetting resin to obtain the double-sided inkstone 1 shown in the figure. Protrusions are provided on the peripheral surface of the plate 9 so that strong bonding with a lightweight synthetic resin can be obtained.

The details of the ink pond surface 3 are as shown in FIG. 3, and a low ink pond portion 6 and a brush leveling portion 10 having a small height and a depth such that a tip of a brush is placed thereon are formed. A screen-like, slightly curved ink brushing portion 7 was formed between the brush-making portions 10. As a result, the ink stored in the ink pond section 6 can be included in the brush, the excess ink can be wiped off by the ink wiping section 7, and the tip can be adjusted by the brush leveling section 10 having a large depth.

A pair of anti-slip projections 13 made of synthetic rubber are provided on the facing portions 12 a and 12 b of the peripheral edge 12 on the side of the ink pond surface 3, respectively. It was made to be non-slip. In addition, notch grooves 14 and 14 are formed at two corners of the periphery surrounding the ink pond portion 6 so that the ink remaining in the ink pond portion 6 can be removed without transmitting along the peripheral surface from the notch groove 14. did.

In the double-sided inkstone 1 of the present invention, only the blackened portion 4 is formed of the synthetic resin plate 9 mixed with the hard fine material 8, and the rest is formed of ordinary lightweight synthetic resin. The amount has been greatly reduced, and the weight has been reduced to about half that of a double-sided inkstone made of synthetic resin mixed with conventional hard fine objects.

[0011]

[Effect of the invention]

 As described above, according to the present invention, the blackened portion of the double-sided inkstone made of synthetic resin is made of a synthetic resin plate mixed with hard fine substances such as minerals, and the rest is free of the hard fine substances. Because it is made of lightweight synthetic resin, the weight of the double-sided inkstone is significantly reduced, reducing the burden on children when commuting to school, etc. If the brush is deep enough for the tip of the brush to be placed on the surface of the ink pond Since the ink brush part and the screen-like ink brushing part are provided, the tip of the ear can be easily adjusted at the time of calligraphy using ink. In addition, since the notch grooves for removing the ink in the ink pond are formed symmetrically at two places, there is an effect that the stability at the time of black printing is good and the ink can be easily removed.

[Brief description of the drawings]

FIG. 1 is a perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line 2-2 of FIG.

FIG. 3 is a rear perspective view of FIG. 1;

[Explanation of symbols]

1 double-sided inkstones, 2 inkstones, 3 ink ponds, 4 ink brushes, 5
Ink pool part, 6 ink pond part, 7 ink removal part, 8 fine objects,
9 plate, 10 brush strokes, 12 rims, 13
Protrusions,

Claims (3)

[Utility model registration claims] 1. A synthetic resin double-sided inkstone having a front side formed on an inkstone surface having a blackened portion and a sump portion, and a rear side formed on a inkstone surface provided with a blackened portion and a blackened portion. The blackened portion is made of a synthetic resin plate mixed with a mineral or other hard fine material, and the remaining portion of the double-sided inkstone is formed of a lightweight synthetic resin free of the hard fine material. Double-sided inkstone to do. 2. The method according to claim 1, wherein a brush leveling portion having a depth such that a tip of a brush is placed on the surface of the ink pond is provided, and a screen-like brush cleaning portion is provided at the ink pond portion. The double-sided inkstone described. 3. A pair of anti-slip projections are provided on opposite sides of the peripheral edge of the ink pond surface, and two notch grooves are formed symmetrically at the peripheral edge to remove the ink in the ink pond portion. The double-sided inkstone according to claim 1 or 2, characterized in that: