JP2006256037A - Eraser for whiteboard - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an eraser for a whiteboard, which enables accurate wiping to be performed by making a force act on a board surface in a concentrated manner, when a user performs the wiping by holding an outer case. <P>SOLUTION: This eraser for the whiteboard comprises the outer case 1 where an opening 11 for exposing a wiping part is formed in a lower part, and a refill pad 2 which is built in the outer case 1 in the state of exposing the wiping part to the outside from the opening 11. The refill pad 2, which is a short cylinder with at least one vertical angle edge 21, is built in the outer case 1 in the state of exposing a chevron-shaped part, composed of the one vertical angle edge 21 and two surfaces 22 and 22 sandwiching the edge 21 in between, to the outside from the opening 11. The board surface is wiped by making a sharp end of the exposed chevron-shaped part serve as the wiping part 23. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to an eraser for whiteboard used for wiping characters and figures written on a whiteboard with oil-based ink or water-based ink.

The whiteboard eraser used for wiping letters and figures written on the whiteboard with oil-based ink or water-based ink has an outer case in which a wiping part exposure opening is formed in the lower part, and the wiping part is exposed to the wiping part. This type of whiteboard eraser is usually exposed to the outside through the opening for use in the outer case, but this type of whiteboard eraser exposes one side of a square pillar or columnar refill pad. The wiping part has a flat surface or an arc surface because it is exposed to the outside from the opening for use and incorporated in the outer case, and the entire flat surface or arc surface hits the board surface. When wiping, the force is dispersed and it is difficult to perform accurate wiping.
JP-A-7-67876

  The problem to be solved by the present invention is to solve the above-described problems so that when the outer case is gripped and wiped, the force concentrates on the board surface and can be wiped accurately. It is to provide an eraser for whiteboard.

  The whiteboard eraser of the present invention that has solved the above-mentioned problems is an outer case in which a wiping portion exposing opening is formed in the lower portion, and the wiping portion is exposed to the outside from the wiping portion exposing opening and incorporated in the outer case. In a whiteboard eraser comprising a refill pad, the refill pad is a short column having at least one apex edge, and the refill pad is composed of one apex edge and two surfaces sandwiching it. The chevron portion is exposed to the outside through the wiping portion exposure opening described above and incorporated in the outer case, and the board surface is wiped with the pointed portion of the exposed chevron portion as the wiping portion. It is what. In addition, if the refill pad in the above-described invention is a regular hexagonal prism body, and any one of the six pointed portions centered on each apex edge is detachably incorporated into the outer case, Since the apex part of the mountain-shaped part which consists of two surfaces which pinch | interpose this by making six apex edge parts into a top part, since all can be utilized as a wiping part, this is made into invention of Claim 2. In addition, when the refill pad, which is a regular hexagonal cylinder, is incorporated into the outer case of the inverted box shape, the two side surfaces following the both hem ends of the chevron portion exposed to the outside from the wiping portion exposing opening as the wiping portion are It is more preferable that the outer case is attached to both vertical inner side surfaces because a stable state of incorporation of the refill pad into the outer case can be obtained. This is the invention of claim 3. Further, a bottom lid having a receiving portion having a V-shaped cross section corresponding to the shape of a mountain-shaped portion comprising one apex edge portion of the refill pad and two surfaces sandwiching the top corner edge portion may be applied to the lower portion of the outer case. In this case, the wiping portion soiled when not in use can be concealed and stably placed, and this is the invention of claim 4.

  Such a whiteboard eraser is similar to this type of whiteboard eraser in which the outer case is gripped and the portion exposed to the outside from the wiping portion exposure opening is applied to the board for wiping. However, in the present invention, the refill pad is a short column having at least one apex edge, and the refill pad exposes the chevron portion composed of the one apex edge and two surfaces sandwiching the apex edge. Since the board surface is wiped by using the exposed pointed portion of the chevron as the wiping part, the force concentrates on the board surface when wiping. As a result, accurate wiping can be performed.

  Also, if the refill pad is a regular hexagonal prism body that is removably incorporated into the outer case, any of the six apex edge portions and the pointed portion of the six chevron portions composed of the two surfaces sandwiching the apex edge portion may be used. Can be used as a wiping part, so when the pointed part of one chevron part becomes dirty, another apex edge part and a chevron part different from the chevron part that consists of two faces sandwiching this are from the long window hole. It can be used continuously for a long time by recombination so that it is exposed to the outside. Furthermore, when the refill pad is a regular hexagonal column, the outer case is shaped like an inverted box with both inner sides vertical, and the lower end of the eraser pad If the two side surfaces following the hem ends of the chevron part exposed to the outside from the wiping part exposure opening are attached to both inner side surfaces of the outer case, the refill pad will be stable on the outer case. set A particularly preferred because the written. If a bottom lid having a V-shaped receiving portion corresponding to the shape of the above-described chevron portion of the refill pad is applied to the lower part of the outer case, it is exposed to the outside from the long window hole when not in use. Since the chevron portion of the refill pad is concealed, it is more preferable that the surrounding padding is not soiled by the dirty wiping portion.

Next, a preferred embodiment of the present invention will be shown.
Reference numeral 1 denotes a long box-like outer case. The outer case 1 is formed of a synthetic resin material with the size of the wiping portion exposing opening 11 formed at the lower end being about 130 × 35 × 35 mm. On the inner surface of the plate portion, ribs 12 and 12 are provided in parallel from one end to the other end. On the other hand, reference numeral 2 denotes a refill pad having a size incorporated in the outer case 1. Although the material of this refill pad 2 can use the thing of all the materials used conventionally, what is illustrated is a regular hexagonal column body which covered the core material which consists of porous synthetic resin materials with a pile ground, Further, the shape of the refill pad 2 may be a pentagonal column or any other column as long as it is a short column having at least one apex edge 21, but the illustrated one sandwiches the six apex edges 21. A regular hexagonal prism body is used so that all of the six pointed portions of the six chevron portions composed of the two surfaces 22 and 22 can be used as the wiping portion 23. The refill pad 2 is incorporated in the outer case 1 by exposing the apex edge portion 21 and the chevron portions formed by the two surfaces 22 and 22 sandwiching the apex edge portion 21 from the wiping portion exposure opening 11 described above. Thus, the apex edge portion 21 is positioned on the bisector extending in the longitudinal direction of the outer case 1 so that the board surface is wiped by using the pointed portion of the mountain portion exposed from the wiping portion exposure opening 11 as the wiping portion 23. It is configured.

  The refill pad 2 incorporated in the outer case 1 has two side surfaces that follow the two hem ends of the two surfaces 22 and 22 of the mountain-shaped portion exposed to the outside from the wiping portion exposing opening 11 on both vertical sides of the outer case 1. While being attached to the inner side surface, the two surfaces inside the outer case 1 that are opposite to the portion exposed from the wiping portion exposure opening 11 are brought into contact with the ribs 12 and 12 described above. With this, the refill pad 2 is stably assembled and held without rattling inside the outer case 1. Reference numeral 3 denotes a synthetic resin bottom lid that is applied to the lower portion of the outer case 1, and the bottom lid 3 includes one apex edge 21 of the refill pad 2 and two surfaces 22 sandwiching the top corner edge 21. The receiving portion 31 has a V-shaped cross section corresponding to the shape of the chevron portion 22.

It is a partially cutaway front view showing a preferred embodiment of the present invention. It is a partially cutaway side view showing a preferred embodiment of the present invention.

Explanation of symbols

1 Outer case
11 Wiping part exposure opening 2 Refill pad
21 Vertical corner
22 sides
23 Wiping part
3 Bottom cover
31 V-shaped receiving section

Claims (4)

  An outer case (1) having a wiping part exposure opening (11) formed in the lower part, and a refill pad incorporated in the outer case (1) by exposing the wiping part to the outside through the wiping part exposure opening (11) In the whiteboard eraser comprising (2), the refill pad (2) is a short column having at least one apex edge (21), and the refill pad (2) is the one apex edge. A chevron part composed of a part (21) and two surfaces (22) and (22) sandwiching the part (21) is exposed to the outside from the wiping part exposing opening (11) and incorporated in the outer case (1), A whiteboard eraser characterized in that the sharpened portion of the exposed chevron portion is used as a wiping portion (23) to wipe the board surface.   The refill pad (2) is a regular hexagonal prism, and this refill pad (2) has one of the six pointed parts centered on each apex edge (21) as a wiping part (23) for the outer case (1 The whiteboard eraser according to claim 1, wherein the eraser is incorporated in a removable manner.   The outer case (1) has an inverted box shape, and the refill pad (2) has two sides that follow the hem ends of the chevron part exposed from the wiping part exposure opening (11) to the outside as the wiping part (23). The eraser for whiteboard according to claim 2, wherein the eraser is incorporated in the outer case (1) along the both inner surfaces of (1).   At the bottom of the outer case (1) is a V-shaped cross section corresponding to the shape of the angled part consisting of one apex edge (21) of the refill pad (2) and two surfaces (22) and (22) sandwiching it. The eraser for whiteboard according to any one of claims 1 to 3, wherein a bottom cover (3) having a receiving part (31) having a shape is applied.

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