JP2526331Y2 - Sign board wipe - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a wiping board used for wiping and erasing a handwriting written on a board such as a white board, an electronic blackboard, and a blackboard.

[0002]

2. Description of the Related Art In general, handwriting written on a surface of a whiteboard or an electronic blackboard with a board marker is composed of a coating film mainly composed of a colorant and a binder resin, and the dried coating film is easily peeled off from the board surface. It has the property of decomposing into fine powder when subjected to external force so that it can be removed. Then, the conventional signboard wiper that erases such handwriting (eraser)
Is designed to scrape the handwriting coating by rubbing the board surface with a flat wiping surface made of a raised woven fabric, a nonwoven fabric such as felt, a soft synthetic resin sponge, or the like.

[0003] On the other hand, for erasing the handwriting written on a normal blackboard with chalk, a Kamaboko-shaped writing board wiping (blackboard wiping) having a wiping portion covered with a nonwoven fabric such as brushed woven fabric or felt is also used. ing.

[0004]

However, since all of the above-mentioned conventional wiping plates are for rubbing and scraping off the handwriting, when the erasing operation is performed, the decomposed powder of the handwriting paint film and chalk powder are reduced by one. Even if the part adheres to the wiping board, the remaining powder falls so as to scatter and pollutes the surroundings, and finer powder floats in the air and becomes dust, which is inhaled by the human body and harms health was there.

[0005] In view of the above situation, the present invention provides a writing board wipe for wiping and erasing a writing board such as a white board, an electronic blackboard, and a blackboard. It is an object of the present invention to provide a device that is less likely to generate dust due to the above and that can be easily erased.

[0006]

As a means for achieving the above-mentioned object, a wiping plate according to the present invention comprises a gripping case 1.
In addition, an eraser made of an open-cell foam 2a of a soft synthetic resin
Roller 2 is rotatable in the circumferential direction, and the peripheral surface of the roller 2
A part is supported in a projecting manner from the case 1 and the erasing row is
The pores of the open-cell foam 2 a
And a large number of hemispherical small recesses 4 are provided in the second embodiment.

In a preferred embodiment of the present invention, two erasing rollers 2 are supported by a gripping case 1 in parallel with each other for wiping the notation plate.

[0008]

In order to erase the handwriting, a part of the peripheral surface of the erasing roller 2 protruding by grasping the gripping case 1 by hand is pressed against the surface of the board 5, and in this state the wiping plate is wiped with the axis of the roller 2. What is necessary is just to move along the board 5 surface in the orthogonal direction. Thereby, the erasing roller 2 rolls, but since this roller 2 is made of an open-cell foam 2a of a soft synthetic resin and has flexibility and elasticity, the roller 2 is compressed and deformed at a contact portion with the board 5 surface, Along with this, each hemispherical small recess 4 on the peripheral surface of the contact portion also flattens to a shape in which the size of the opening is increased and the depth is reduced.

However, the compressed and deformed portion expands as it comes out of the contact position with the surface of the board 5 due to the above-mentioned rolling, and returns to the original hemispherical state. At the same time, decomposed powder of the handwriting paint film or chalk powder is sucked into the roller from the surface. In particular, in the present invention, the peripheral surface of the erasing roller 2
In addition, a large number of hemispheres besides the pores of the open-cell foam 2a
Since each of the small concave portions 4 is provided with a shape, the small concave portions 4 of each hemispherical shape act as suction cups, and generate a large suction force when returning from the flat shape to the original hemispherical shape. Suction becomes stronger. Therefore, the decomposed powder of the handwriting paint film and chalk powder are almost automatically absorbed into the roller during the erasing operation, and are removed very efficiently. It does not float.

When only one erasing roller 2 is provided in the gripping case 1, the gripping case 1 is not moved during the erasing operation.
However, in the configuration in which the two erasing rollers 2 and 2 are attached, both the rollers 2 and 2 abut on the surface of the board 5 and the posture of the case 1 becomes constant, so that the erasing operation is more easily performed. Become.

[0011]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In FIGS. 1 and 2, reference numeral 1 denotes a holding case made of a hard synthetic resin molded product, which is formed in a substantially rectangular shallow box shape with one side open and two parallelly arranged inside the box. Both ends of each support shaft 3 of the erasing rollers 2 are rotatably supported on both side surfaces 1a in the width direction. In addition, both side surfaces 1b, 1b in the length direction of the case 1 are formed in a concave curved surface so as to be easily grasped by fingers.

Each erasing roller 2 has a support shaft 3 on which an open-cell foam 2a made of a soft synthetic resin such as a cylindrical polyurethane foam is fixed, and a large number of hemispherical small recesses are formed on the entire peripheral surface thereof. Are densely formed. Both the rollers 2 and 2 are attached to the case 1 such that a part of the peripheral surface protrudes outward from the open side of the gripping case 1.

In order to wipe off the handwriting of a signboard such as a whiteboard, an electronic blackboard, and a blackboard by wiping the signboard having the above structure, the peripheral surfaces of the two rollers 2 and 2 protruding by holding the gripping case 1 by hand. Is pressed against the surface of the board 5, and in this state, the rollers 2 and 2 may be rolled by moving in the direction orthogonal to the axes of the rollers 2 and 2, that is, in the width direction of the case 1.

At this time, as shown in FIG.
Is that the foam 2a is compressed and deformed at the contact portion with the board 5,
Along with this, each hemispherical small concave portion 4 of the contact portion is also deformed flat. Then, the compressed and deformed portion expands as it comes out of the contact position with the board 5 due to the above-mentioned rolling, and returns to its original state. In the process of expanding, a suction force acts on the surface of the roller 2, and the handwriting paint film together with air. Decomposed powder or chalk powder is sucked into the foam 2a from the surface.
In particular, in the present invention , the continuous surface
Numerous hemispherical small recesses 4 apart from the pores of the foam 2a
Is provided, each small concave portion 4 acts as a suction cup, generates a large suction force when returning from the flat shape to the original hemispherical shape, and the suction of the powder becomes stronger. Therefore,
The decomposed powder of the handwriting paint film or chalk powder is almost automatically absorbed into the roller 2 during erasing and does not scatter around and does not stain the periphery or float as dust in the air.

In the above embodiment, two rollers 2 are provided. However, the wiping plate of the present invention may be provided with only one roller 2. Further, various designs and modifications can be made to the detailed configuration such as the size and density of the small hemispherical concave portion 4 formed on the peripheral surface of the roller 2, or the diameter and length of the roller 2, and the shape of the gripping case 1. For example, while increasing the formation density of the hemispherical small recesses 4, the peripheral surface of the foam 2a excluding these hemispherical small recesses 4 is made of a non-breathable skin to make the sucking action of each small recess 4 stronger. Handwriting powder may be sucked only at the small recess 4 portion.

[0016]

[Effect of the Invention] According to the wiping plate according to the present invention, the handwriting written on a whiteboard or an electronic blackboard with a board marker or the handwriting written on a normal blackboard with a chalk close to the peripheral surface of the erasing roller. Just pressing a part against the board and rolling it can automatically erase it very efficiently,
In addition , the peripheral surface of the erasing roller is
A large number of hemispherical small recesses are provided separately from the pores
Therefore, each small recess acts as a suction cup and has a flat shape.
Large suction force when returning to the original hemispherical shape from
Suction becomes stronger. Therefore, the decomposed powder of the handwriting paint film and the chalk powder are not absorbed and scattered inside the roller, and do not scatter and contaminate the surroundings or float in the air as in the conventional case, which is suitable for environmental hygiene. . In addition, the wiping plate has the advantage that it is structurally simple and can be manufactured at low cost.

In a configuration in which two erasing rollers are attached to the holding case, both rollers come into contact with the board surface and the posture of the case becomes constant, so that only one erasing roller is provided. Another advantage is that the gripping case does not tilt back and forth during the erasing operation, so that the erasing operation is more easily performed.

[Brief description of the drawings]

FIG. 1 is a partially cutaway perspective view of a wiping plate according to an embodiment of the present invention.

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

FIG. 3 is a sectional view showing the behavior of an erasing roller in an erasing operation by wiping the notation plate.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Grasping case 2 Erasing roller 2a Open-cell foam 3 Support shaft 4 Small recess 5 Board (notation board)

Claims (2)

(57) [Scope of request for utility model registration] 1. A continuation of a soft synthetic resin in a holding case 1.
The erasing roller 2 made of the foam 2a is rotated in the circumferential direction.
And a part of the peripheral surface of the roller 2 is
The erasing roller 2 is rotatably supported in a protruding manner.
Many hemispherical small recesses apart from the pores of the open-cell foam 2a
A signboard wiper provided with 4 . 2. The wiping board according to claim 1, wherein two erasing rollers are pivotally supported in parallel on the holding case.