KR200348865Y1 - Eraser For Water-based Pen Used on Board - Google Patents

Abstract

The present invention relates to an eraser capable of removing writing on a substrate by a pen (" board water pen ") containing an ink component which is easily discolored upon contact with water. A water storage member positioned in the space and capable of holding water, a water supply member supplying water from the water storage member to the substrate and protruding from the lower surface of the housing, and water attached to the lower surface of the housing and applied to the substrate It is composed of a water intake member that can suck the water, it is possible to use continuously by a single water supply, using a spray or the like in the process of providing water to the substrate on which the water pen ink for the board is written A limited water supply can be performed even if it is not, so that the coloration of some notes can be easily performed. Due to the structure, not only can it be manufactured at low cost, but also has the advantage of being easy to use.

Description

Eraser For Water-based Pen Used on Board}

The present invention relates to a water pen eraser for a board, and more particularly, to an eraser capable of easily removing writing on a substrate by a pen including an ink component easily discolored upon contact with water.

Pens containing an ink component that easily discolors upon contact with water are disclosed in Japanese Patent Nos. 3,329,505 and 5,417,748 and the like. For convenience of description, the pen is abbreviated herein as a "board pen". Board pens can be removed (precisely discolored) by using water after writing on a board such as a white board, and thus, existing writing instruments in which dust (powder powder, ink powder of heavy metals, etc.) remain after removal. Compared to the above, it has very convenient and hygienic advantages.

On the other hand, since this bleaching process of the water pen for the board necessarily requires water, a structure different from the conventional eraser is required. As an eraser for removing writing by a board water pen, an eraser composed of a spray for spraying water onto the written substrate and an absorbing member for sucking and removing the sprayed water is mainly used. However, the eraser of such a structure has a problem that it is difficult to discolor only a portion of the ink written on the substrate, the discoloration work is very cumbersome by accompanying the operation of the spray, and it is very difficult to control the amount of sprayed water.

In order to solve such a problem, the present applicant discloses an elastic body part having a bulk tape on the outer surface of the Korean Utility Model Registration No. 232167 and a water pen eraser for a board made of a microfiber cloth that can be attached and detached thereto. I've done it. However, since the process of absorbing water in the microfiber cloth must be prioritized in order to perform the bleaching operation with such a water pen eraser for a board, a container for storing water is required. On the other hand, when water is preliminarily absorbed in the microfiber cloth in order to omit such an absorption process, the water retained in the cloth decreases as it evaporates over time.

Therefore, an object of the present invention is to provide a water pen eraser for a board that can solve the problems of the prior art and the technical problem that has been requested in the past. That is, the present invention can remove only some of the writing contents of the substrate written by the water pen for the board as needed, and does not need to continuously supply water during the color work, and provides a water pen eraser for the board that is easy to use with a simple structure. .

1 is a schematic diagram of a water pen eraser for a board according to an embodiment of the present invention;

FIG. 2 is a vertical sectional view of the housing cover modified in the water pen eraser for the board of FIG. 1; FIG.

3 is a schematic view of a water supply member according to one embodiment that may be used in the water pen eraser for the board of FIG. 1;

4 is a bottom view of the water pen eraser for the board with the water supply member of FIG. 3 mounted thereon;

5 is a state diagram showing an example of use of the water supply member of FIG.

Explanation of symbols for main parts of the drawings

100: board pen eraser 200: housing

300: water storage member 400: water supply member

500: water suction member 600: cushion member

700: compression spring

Water pen eraser for the board according to the present invention for achieving this object,

(a) a housing defining an appearance;

(b) a water storage member positioned in a closed interior space of the housing and capable of retaining water;

(c) a water supply member supplying water from the water storage member to the substrate and protruding from the lower surface of the housing; And

(d) a water suction member attached to a lower surface of the housing and capable of sucking water applied to the substrate;

It is configured to include.

The housing is not particularly limited as long as the structure can hold the water storage member in a sealed state. For example, the housing may have a hollow, cylindrical shape, and the like. The inside of the housing is sealed from the outside except for the water supply member while the water storage member is held. In one embodiment, the housing is composed of a main body, the top of which is opened and a cover that can be attached and detached to such a body, the cover may be opened to position the water storage member in the body and then sealed with a lid. In this case, water can be supplied to the water storage member as needed and sealed with a lid. In another embodiment, a groove may be formed in a portion of the top or side of the housing inwardly to supply water to the water storage member as needed.

The water storage member is a porous member capable of holding water, and the water is stored in a plurality of open type pores forming it. As the water storage member having such characteristics, for example, PVA sponge, pulp sponge, melamine sponge, urethane sponge, EVA sponge, polyvinyl alcohol sponge, nonwoven fabric, and the like can be used, but are not limited thereto. Water absorbed by the water storage member is generally moved downward by gravity and concentration difference, and as described later, is moved toward the water supply member which is in contact with the lower portion of the water storage member.

The water supply member serves to directly transfer the water retained in the water storage member to the outside through the lower portion of the housing or to supply a portion of the water suction member. That is, when the bottom surface of the water pen eraser for the board according to the present invention is rubbed with the board water pen ink toward the substrate on which the ink is written, water held in the water storage member is transferred directly to the substrate through the water supply member, or It is delivered through the water intake member at the bottom thereof. The larger the horizontal cross-sectional area of the water supply member is, the more uncomfortable it is because a large amount of water is supplied at a time and evaporates from the substrate, which takes a long time to write back to the substrate. Therefore, in order to solve this problem, it is necessary to supply water to the substrate through a water supply member having a horizontal cross-sectional area smaller than the water storage member. As the horizontal cross-sectional area of the water supply member is smaller, the amount of water delivered to the substrate can be reduced, so the evaporation time of the water is shorter, which is advantageous for rewriting and can be used for a long time even with a limited amount of water. However, for a smooth bleaching operation of water pen writing, an appropriate amount of water is required, which can be achieved by adjusting the horizontal cross-sectional area of the water supply member.

It is preferable that the water supply member has superior absorption and rigidity than the water storage member, but the same material as that of the water storage member can be used. For example, various sponges that can be used as water storage members, nibs, filters, and the like used in ordinary writing instruments and the like may be used, but are not limited thereto.

The water suction member attached to the lower surface of the housing serves to suck water supplied through the water suction member provided directly to the substrate from the water supply member or located underneath for discoloring the written ink. In the state where water remains on the substrate, writing is smeared even when the water pen ink for the board is applied again, so that the water supplied in the bleaching operation is required to be removed immediately for rewriting. Therefore, the main role of the water suction member is to remove the water used in the bleaching operation from the substrate. When the water supply member provides water directly to the substrate, since the water supply member protrudes from the lower surface of the housing, the water suction member is attached to a place other than where the water supply member protrudes. Preferably, the water supply member is arranged in the horizontal and / or vertical direction along the center of the lower surface of the housing, and the water suction member is located on both sides thereof. When water is supplied to the substrate through some of the water intake members located on the lower surface of the water supply member, the water is continuously supplied so that some of the water intake members located in the lower portion of the water supply member are kept wet. In order to easily remove the water, the main water suction member should be separated from the water suction member located on the lower surface of the water supply member. In some cases, the water suction member may be attached to the upper end of the housing cover in order to increase the area of the water suction member.

The water intake member is not particularly limited as long as it is a material having excellent water absorption. Preferably, a microfiber woven fabric, knitted fabric or nonwoven fabric may be used. Some of the water intake members and the main water intake members, which are independently positioned under the water supply member, need not be the same material.

Preferably, the apparatus may further include a cushion member that provides a restoring force to the water suction member while cushioning the housing and the water suction member. The cushion member provides a space between the water supply member and some of the water intake members located below it so that when not in use, the two members separate and stop the water supply, and when placed under pressure to face the substrate for discoloration, The supply member may contact some of the water intake members located below it to allow the supply of water to be made. In the case of using the cushioning member in this way, since water is supplied only when the eraser is used for discoloration, the use of the water for a long time is possible by reducing the use of unnecessary water. In addition, even when water is directly supplied to the writing substrate through the water supply member, the water supply member and the writing substrate can be protected by the pressure dispersion and the buffering action. Examples of the cubic member may include a compression spring, EVA sponge, PVC sponge, urethane sponge, and the like, but are not limited thereto. The water suction member may be detachably attached by a bulk tape as described in the Korean Utility Model Registration No. 232167 of the applicant described above, the contents of which are incorporated herein by reference.

In some cases, a compression spring is installed at a position where the water supply member is coupled to the housing, so that when not in use, the water supply member is separated from the water storage member by the opposing force of the compression spring against the housing, thereby stopping the water supply. The water supply member may be in contact with the water storage member under pressure only when the color is bleached, so that the water may be supplied. As such, even when the water supply member is coupled to the housing through the compression spring, limited water can be used for a long time.

Hereinafter, the content of the present invention will be described with reference to the drawings, but this is only an exemplary description, and the scope of the present invention is not limited thereto.

Figure 1 is a schematic diagram of a water pen eraser for a board according to an embodiment of the present invention is cut one side to see the inside.

Referring to FIG. 1, the board water pen eraser 100 is located in a sealed interior space of the housing 200 and the housing 200 constituting its exterior, and the water storage member 300 capable of holding water. ), The water supply member 400 protruding from the lower surface of the housing 200 to supply water from the water storage member 300 to the substrate, and the water suction member 500 attached to the lower surface of the housing 200. It consists of including.

The housing 200 is composed of a main body 210 forming the inner space S and a cover 220 in close contact therewith. The water storage member 300 is located in such an inner space S, and is sealed from the outside except where the water supply member 400 is positioned in the state in which the cover 220 is covered. Therefore, the water held in the water storage member 300 may flow out only through the water supply member 400. A cushion member 600 is provided between the lower portion of the housing body 210 and the water suction member 500, so that the water supply member 400 is positioned at the lower portion thereof when the water supply member 400 is not in use. Separate from. Therefore, in order to discolor writing, when the bottom surface of the eraser 100 for a board pen is rubbed while being faced with a substrate (not shown), the cushion member may be removed by a compressive force applied to the eraser 100. 600 is compressed and the lower end of the water supply member 400 comes into contact with some water intake member 500 'located at its lower surface, so that the water of the water supply member 400, ultimately the water storage member 300 The water retained in the water is transferred to some of the water suction members 500 'via the water supply member 400, so that the water can be used for discoloring the writing. On the contrary, if the compressive force applied to the eraser 100 for the board water pen is removed, the water supply member 400 is separated from some of the water suction members 500 'positioned at the bottom thereof in the reverse process as described above. Will be interrupted.

In the embodiment of FIG. 1, some water suction members 500 ′ are also located on the bottom surface of the water supply member 400, but may not be the same as described above.

The housing cover 220 may be in various forms, one example of which is shown in FIG. 2. 2 shows a variant of the housing lid 220 of FIG. 1 as a vertical cross sectional view. The housing cover 220 of FIG. 2 has a projection 222 perpendicular to its lower surface. The protrusion 222 compresses the water storage member 300 vertically to help the water storage member 300 to be in close contact with the water supply member (400 of FIG. 1) and to hold water held in the water storage member 300. It leads more towards the water supply member 400.

The water supply member 400 may also be in various forms, and FIG. 3 illustrates a removable water supply member 400 that may be mounted on the bottom surface of the housing 200. The water supply member 400 of FIG. 3 includes a conical upper portion 410 and a cylindrical lower portion 420, and the conical upper portion 410 is inserted into the lower portion of the housing 200 to closely contact the water storage member 300. It is.

The removable water supply member 400 determines its area in consideration of the water supply capability, and in some cases, is a single member having a length corresponding to the entire length of the lower surface of the housing 200, or as shown in FIG. 3. It can be a plurality of assembly members by a combination of two or more.

4 is a bottom view of the eraser 100 for a water pen according to one embodiment of the present invention. The water supply member 400 is indicated by a dashed line in the center along the horizontal centerline of the housing 200 in the longitudinal direction, and the water suction member 500 'is located at the bottom thereof, but the main water is located at both sides thereof. It is separated from the suction member 500. That is, when viewed from the lower surface of the board water pen eraser 100, some of the water suction members 500 ′ positioned on the lower surface of the water supply member 400 are separated from the main water suction member 500. The cushion member (600 of FIG. 1) described in FIG. 1 extends toward the water suction member 500 ′ so that some water suction member 500 ′ may be attached to the lower end of the housing 200. Thus, as shown in FIG. 1, some of the water suction members 500 ′ at positions corresponding to the water supply members 400 are separated from the water supply members 400, but as shown in FIG. 4, the extended cushion members ( 600 ′ may be attached to and fixed to the lower end of the housing 200. Some water suction members 500 ′ may be configured to be attached to the extended cushion member 600 ′ in various detachable manners, and one preferred example is configured to be attached by bulk tape.

In FIG. 4, for the sake of understanding, the case where the water supply member 400 is mounted as a plurality of cylindrical assembly members is shown.

In FIG. 5, as an example of using the water supply member 400, a compression spring 700 is mounted between the housing 200 and the water supply member 400 so that the water supply member 400 is not used when water is not used. Separate from storage member 300.

Those skilled in the art to which the present invention pertains will be able to perform various applications and modifications within the scope of the present invention based on the above contents. For example, the housing may further include a bottom cover corresponding to the top cover to prevent evaporation of water when not in use and to prevent contamination of the water intake member. It is also possible to configure the removable water supply member to be inserted and mounted from the side rather than from the bottom of the housing. As described above, all the technologies modified from the present invention should be interpreted as being included in the scope of the present invention.

The water pen eraser for the board according to the present invention can be used continuously by a single water supply, and water is supplied to the substrate on which the water pen ink for the board is written. Since it can be carried out a bleaching operation for some of the handwriting, it is possible to manufacture at a low cost due to the simple and small structure as well as has the advantage of ease of use.

Claims (3)

(a) a housing defining an appearance; (b) a water storage member positioned in a closed interior space of the housing and capable of retaining water; (c) a water supply member supplying water from the water storage member directly to the substrate or supplying water to the substrate through some water suction member located on the bottom surface thereof; And (d) a water suction member attached to a lower surface of the housing and capable of sucking water applied to the substrate; Water pen eraser is configured to include. The board of claim 1, further comprising a cushioning member for cushioning between the housing and the water suction member and providing a separation space between the water supply member and a portion of the water suction member positioned below the board. Water pen eraser. The eraser for water pen according to claim 1, wherein a compression spring is mounted between the housing and the water supply member to contact the water storage member only during the bleaching operation.