JP2008273157A - Eraser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an eraser which has an improved erasability, moreover is capable of easily cutting off and removing a stained portion, and is used for an electronic blackboard device, a whiteboard or the like having a writing surface wherefrom the ink applied by a marker is hard to erase. <P>SOLUTION: The eraser has a main body case, a second case body which has a plurality of openings in the front and is disposed inside the main body case such that the front provided with the openings is exposed, and melamine foam wiper parts which are disposed such that they can be projected and withdrawn through the openings of the second case body. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

The present invention relates to an eraser used for an electronic blackboard device or a whiteboard used in a conference or the like.

The electronic blackboard device writes characters and figures with a marker on a white writing sheet, reads the written surface as image information with an optical sensor, reduces the read image information, prints it on paper, or records it. It has the function to perform. The whiteboard is a device that has a white writing surface for writing with a marker but does not have a reading device.

These devices are used for conferences, etc., so that writing and erasing with markers can be performed immediately, writing sheets and writing boards can be reliably written with markers, and ink on the writing surface can be easily erased by an eraser. A UV curable hard coat process is applied so that the surface can be removed.

JP 2001-47794 A JP 2003-211895 A

In a meeting that is performed while creating a minutes using an electronic blackboard device, a projector device may be used in combination.
For example, a document image created by a personal computer is enlarged and projected and referred to, and the conference proceeding is performed while writing the minutes of the conference on an electronic blackboard.
In the case of such a meeting, conventionally, a projector device projects an image on a dedicated projection screen, and writing of minutes and the like is performed on an electronic blackboard or a whiteboard using a marker.

On the other hand, a technique for projecting a projector image on a writing surface of an electronic blackboard device and combining the projector image and the writing image for storage or printing has been studied for a long time.
However, as described above, the writing surface of the conventional electronic blackboard device is composed of a glossy surface in order to prioritize the writing property and erasability, and the projection light from the projector device is oriented. There was a problem that it was strongly reflected and it was difficult to see the projected image.

As means for solving this problem, it is considered that the writing sheet of the electronic blackboard device has a matte tone without gloss.
However, such a screen has a problem that writing with a marker is difficult to erase by an eraser.

In order to solve the above-mentioned problems, the present invention provides an eraser for wiping off an image written with a marker on a writing surface, and has a main body case and a plurality of openings on the front surface, and exposes the front surface provided with the openings. It has the 2nd case body arrange | positioned in a main body case, and the melamine foam wiping off part arrange | positioned so that insertion / removal is possible from the said some opening of this 2nd case body, It is characterized by the above-mentioned.

Moreover, in order to cut and remove the soiled part by using the melamine foam member, it has a structure in which it is extruded from the opening of the case.

According to the present invention, for example, even on a writing surface that is difficult to erase with a marker, the writing of the marker can be easily erased, and the dirty portion can be easily removed by erasing the writing.

Hereinafter, the best mode for carrying out the present invention will be described in detail with reference to the drawings.

An embodiment of the present invention will be described below with reference to the drawings.
FIG. 1 is a front sectional view showing an embodiment of the present invention.
DESCRIPTION OF SYMBOLS 1 is a main body case, 2 is the 2nd case body which comprises the lower surface of a case, 3 is the opening provided in multiple numbers on the surface of the 2nd case body, 4 is the wiping off comprised by several cuboid melamine foam materials Reference numerals 5 and 5 denote holding members disposed in the main body case.
The marker ink is removed by moving the melamine foam wiping portion 4 on a writing surface (not shown).
The melamine foam is a stretchable foam body, and is molded to a size that comes into pressure contact with the opening of the second case body.

The main body case 1 and the inner case body 2 are molded from a resin material, and the surfaces to be joined are provided with corresponding concave and convex portions, and the main body case 1 is pushed down relative to the second case body 2. It is possible.
By this depression, the melamine foam wiping portion 4 is pushed out from the opening 3.

Melamine foam material is known for its high effect of removing dirt, and is used, for example, as a sponge for washing dishes.
In order to use the effect of this melamine foam to the maximum extent, the wiping portion is configured to dispose a plurality of melamine foam materials apart.
That is, rather than joining on the writing surface with a large surface, the force locally concentrates on that portion, and the ink on the writing surface can be strongly peeled off.

When the melamine foam wiping portion 4 becomes dirty, the melamine foam wiping portion 4 is pushed out by pushing down the main body case 1 and cut and removed along the surface of the second case body 2 using a cutter or the like.

FIG. 2 shows a second embodiment.
In the present embodiment, a comb-shaped wiping portion 4 is used in which a plurality of melamine foam rectangular parallelepipeds are integrally formed by a connecting portion.
In the case of the first embodiment using the above-mentioned separate melamine foam rectangular parallelepiped, a holding member for holding one end of the melamine foam rectangular parallelepiped is required, but this second embodiment is not necessary.
When the melamine foam wiping portion 4 is soiled, the melamine foam wiping portion is pushed out by pushing down the main body case, and using a cutter (not shown) along the surface of the second case body as in the first embodiment. Cut and remove.
After removing a predetermined amount or more, the main body case 1 and the second case body are separated, and a new melamine foam wiping portion is replenished in the main body case.

FIG. 3 is a perspective view showing a state in which each member of the second embodiment is separated.
The upper surface of the main body case 1 forms a curved surface so that it can be easily held when the present eraser is used.
The main body case 1 and the second case body 2 are engaged by a plurality of corresponding concave and convex portions, but when erasing a marker on a writing surface (not shown), the user holds the side surface of the main body case by hand. In order to operate, a frictional force is applied to the concavo-convex portion, and the main body case 1 and the second case body 2 are securely fixed. On the other hand, when it is desired to push down the melamine foam wiping portion 4, by pushing the upper surface of the main body case 1, a force acts in the direction in which the engaging portion is peeled off and can be pushed down easily.

FIG. 4 shows a third embodiment.
In this embodiment, a member 5 for extruding the melamine foam wiping portion 4 is provided on the upper part of the main body case 1.
When the pushing member 5 is pushed down while holding the main body case 1, the melamine foam wiping portion 4 is pushed out from the opening of the second case portion 2. Only the pushing member 5 is returned to the original position by an elastic force.
Similarly to the previous embodiment, this embodiment can also separate the melamine foam wiping portion 4 by separating the main body case 1 and the second case body 2.

FIG. 5 shows a fourth embodiment.
In this embodiment, a cutter 6 that can move along the surface of the second case body is disposed in order to cut off a dirty portion of the melamine foam wiping portion 4.
The melamine foam wiping portion is partially cut and removed by moving the cutter 6 along the groove provided on the side surface in the longitudinal direction of the second case body.

The present invention is not limited to the above-described embodiments. For example, the shapes of the main body case and the inner case body may be different.
The main body case and the inner case body may be made of wood or metal.

INDUSTRIAL APPLICABILITY The present invention can be used as an eraser for an electronic blackboard device, a white board, or a writing board stationery having a writing surface on which marker ink is difficult to erase.

FIG. 1 is a front sectional view showing a configuration according to the first embodiment of the present invention. FIG. 2 is a front sectional view showing the configuration according to the second embodiment of the present invention. FIG. 3 is a perspective view showing the configuration according to the second embodiment of the present invention. FIG. 4 is a front sectional view showing a configuration according to the third embodiment of the present invention. FIG. 5 is a perspective view showing a configuration according to the fourth embodiment of the present invention.

Explanation of symbols

1: Main body case 2: Second case body 3: Opening 4: Melamine foam wiping portion

Claims (5)

In an eraser for wiping off an image written with a marker on a writing surface, a main body case and a second case having a plurality of openings on the front surface and exposing the front surface provided with the openings and disposed in the main body case An eraser comprising: a body; and a melamine foam wiping portion disposed so as to be able to be inserted and removed from the plurality of openings of the second case body. 2. The eraser according to claim 1, wherein each of the melamine foam wiping portions is formed in a rectangular parallelepiped shape, and an end portion of the melamine foam wiping portion is disposed so as to contact a holding portion in the main body case. . 2. The eraser according to claim 1, wherein the melamine foam wiping portion is configured in a comb shape, and a comb tooth portion is disposed so as to be exposed from an opening of the second case. 2. The structure according to claim 1, wherein the melamine foam wiping portion exposed from the opening of the second case body is pushed out by pushing down the main body case with respect to the second case body. Eraser. 2. The eraser according to claim 1, wherein means for extruding a melamine foam wiping portion exposed from the opening of the second case body is provided on the upper surface of the main body case.

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