JP4578290B2 - Eraser for whiteboard - Google Patents

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 characters and figures written with oil-based ink or water-based ink on the whiteboard 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 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 eraser for whiteboard of the present invention that has solved the above-mentioned problems has an inverted box-shaped outer case in which a wiping portion exposing opening is formed in the lower portion and a wiping portion exposed outside from the wiping portion exposing opening. In a whiteboard eraser comprising a refill pad incorporated in an outer case, the refill pad is a regular hexagonal prism body having six apex edge portions, and the refill pad sandwiches the one apex edge portion with the apex edge portion. Six pointed portions centered on each apex edge by exposing the angled portion formed of two surfaces to the outside from the wiping portion exposing opening so as to be positioned on a bisector extending in the longitudinal direction of the outer case both hem 2 side following the end be incorporated freely detachably attaching the outer case in Sowase on both inner side surfaces of the outer case, the exposed of externally exposed the chevron portion as wiping part one of It is characterized in that a so as to wipe the board surface as wiping portion pointed destination portion of the chevron section. Incidentally, have you said the invention, the bottom of the outer case, a bottom having a receiving portion of the V-shaped cross section corresponding to the shape of one vertical angle edge and chevron portions consisting of two surfaces sandwiching the the refill pad If the lid is applied, the wiping portion soiled when not in use can be concealed and stably placed, and this is the invention of claim 2.

Such a whiteboard eraser is similar to the conventional whiteboard eraser of this type in that it grips the outer case and wipes the portion exposed to the outside through the wiping portion exposure opening. However, in the present invention, the refill pad is a regular hexagonal prism body having six apex edge portions, and the refill pad exposes a chevron portion composed of one apex edge portion and two surfaces sandwiching the apex edge portion. 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.

In addition, since 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 six pointed portions of the two chevron portions sandwiching the six apex edge portions are used. Can be used as a wiping part, so that when the pointed part of one chevron part becomes dirty, another chevron part that is different from the other apex edge part and the chevron part that consists of the two surfaces sandwiching the apex edge part from the long window hole It can be used continuously for a long time by recombination, and the refill pad is a regular hexagonal column, so that the outer case has an inverted box shape with both inner surfaces vertical, and the lower end of the eraser pad. of a state in which the two sides following the two skirt end was Sowase on both inner side surfaces of the outer case of the chevron portion from wiping portion exposed opening is exposed to the outside, refill pad is stably integrated into the outer case . 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, as shown in the figure, the shape of the refill pad 2 is such that all the pointed portions of the six chevron portions comprising the six apex edge portions 21 and the two surfaces 22 and 22 sandwiching the apex edge portion 21 are used as the wiping portion 23. It is a regular hexagonal cylinder so that it can. 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 hem ends of the two surfaces 22 and 22 of the chevron portion exposed to the outside from the wiping portion exposure opening 11 on both 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 exposing 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. In addition, 3 is a synthetic resin bottom cover applied to the lower part of the outer case 1, and this bottom cover 3 is composed of one top corner edge 21 of the refill pad 2 and two surfaces 22 sandwiching it. 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.

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 (2)

A reverse box-shaped outer case (1) having a wiping part exposure opening (11) formed in the lower part and a wiping part exposed to the outside from the wiping part exposure opening (11) to the outer case (1) In the whiteboard eraser comprising a refill pad (2) to be incorporated, the refill pad (2) is a regular hexagonal column having six apex edges (21), and the refill pad (2) is the first one. The wiping portion exposure described above so that the angled portion composed of the two apex edge portions (21) and the two surfaces (22) and (22) sandwiching the apex edge portion is located on the bisector extending in the longitudinal direction of the outer case (1) On the both hem ends of the chevron part exposed to the outside as a wiping part (23) with one of the six pointed parts centered on each apex edge part (21) exposed from the opening (11) the two sides are in Sowase on both inner side surfaces of the outer casing (1) is built into the freely detachably attaching the outer case (1) which follows, the exposed been chevron portion Eraser for a whiteboard, characterized in that so as to wipe the board surface pointed away portion as the wiping portion (23). At the bottom of the outer case (1) is a V-shaped cross section corresponding to the shape of the chevron part consisting of one apex edge (21) of the refill pad (2) and two surfaces (22) and (22) sandwiching it. 2. The eraser for whiteboard according to claim 1, wherein a bottom cover (3) having a receiving part (31) having a shape is applied .

Images