JP3940021B2 - Writing instrument with eraser and eraser - Google Patents

Description

[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a writing instrument with an eraser and an eraser. Specifically, the present invention relates to a writing instrument with an eraser and an eraser that ensure the virginity of the eraser.
[0002]
[Prior art]
Many writing instruments with an eraser attached to the closed end of the cap, the rear end of the writing instrument body, and the like have been commercially available. As the writing instrument with an eraser, there are an eraser exposed and a cover member that covers the eraser, but when the eraser is exposed, when the consumer makes a trial write at the store, Using the attached eraser, the virgin property of the eraser may be impaired, and the use of the eraser has a problem that the value as a product is lowered. Therefore, in order to secure the virginity of the eraser, which is a problem, packaging means using a shrink film is used. However, in this method, since the entire writing instrument is packaged, the consumer writes a test before purchasing. It cannot be done, and the entire writing instrument is covered, so that the manufacturing cost is also increased. In addition, in the case where the cover member is provided, there is a possibility that an infant may accidentally swallow the cover member. Since it is necessary to devise it, it takes time and manufacturing cost.
[0003]
In addition, in the eraser that has been commercially available in the past, a film wrapping means is used to ensure the virginity of the eraser even though it is covered with a case such as cardboard other than a certain eraser. It has been. However, in the packaging means, it is necessary to cover the entire eraser with a film, so that the manufacturing cost is increased, and unnecessarily trash is generated during use.
[0004]
[Problems to be solved by the invention]
The present invention solves the above-mentioned conventional problems, and in a writing instrument with an eraser with an eraser exposed, the attached eraser can not be used even if the writing instrument is written on a trial basis at the store, and it takes less time and effort. It is intended to provide a writing instrument with an eraser that can secure the eraser's virginity at a low cost, and also provides an eraser that can secure the virginity of the eraser at a low cost. It is something to try.
[0005]
[Means for Solving the Problems]
The present invention requires a writing instrument 6 with an eraser (Claim 1) formed by covering and fixing the top surface portion of the projecting side end portion of the eraser 1 and the side surface portion connected to the peripheral edge portion 11 of the top surface portion so as to be peelable by resin. Furthermore, the writing instrument 6 with an eraser, wherein the resin is either a thermoplastic resin or a resin emulsion, is required. Further, a character formed by covering and fixing the top surface portion of the protruding end portion of the eraser 1 housed in the case 5 and the side surface portion connected to the peripheral edge portion 11 of the top surface portion so as to protrude one end to the outside with a resin. The eraser 7 (Claim 3) is a requirement, and the eraser 7 (Claim 4) is also a requirement in which the resin is either a thermoplastic resin or a resin emulsion.
[0006]
In claim 1, the “writing instrument” is a ballpoint pen, a mechanical pencil, a sign pen, a marking pen, a pencil or the like, and the “projection side” is an eraser 1 from the end of the writing instrument 6 main body or the end of the cap 3 thereof. It is the wear consumption side of the protruding eraser 1, and the “protruding side end portion” is a side surface portion connected to the top surface portion on the protruding side and the peripheral portion 11 of the top surface portion. As the “resin”, a widely used resin can be used as long as it can be easily peeled off by the consumer at the first use. By covering the protruding end portion of the eraser 1 with the resin, it is possible to prevent the consumer from using the eraser 1 before purchasing a product, and to easily ensure the virginity of the eraser 1 at low cost.
[0007]
In the second aspect, specific examples of the “thermoplastic resin” include ethylene-vinyl acetate resin, polyamide resin, polyester resin, polyolefin resin, rubber resin, and the like. Furthermore, a hot melt adhesive composed of the thermoplastic resin (main component), a tackifier, a wax and the like can also be suitably used. By dissolving the thermoplastic resin or hot-melt adhesive and immersing and raising the vicinity of the end of the eraser 1 protruding side, the end of the eraser 1 protruding side can be covered. Specific examples of the “resin emulsion” include acrylic emulsions such as thermoplastic acrylic emulsions, thermal self-crosslinking acrylic emulsions and modified acrylic emulsions, vinyl acetate emulsions such as polyvinyl acetate emulsions and modified vinyl acetate emulsions, polyethylene Various resin emulsions such as emulsions, polyolefin resin emulsions such as polypropylene emulsion, various resin emulsions such as polyvinylidene chloride, copolymer emulsions of vinyl acetate and ethylene, copolymer emulsions of vinyl acetate and acrylate, etc. It can be illustrated. After immersing the vicinity of the end of the eraser 1 protruding side into the resin emulsion and pulling it up, the end of the eraser 1 protruding side can be covered by leaving it at room temperature or warming. Since the eraser 1 can be used only after the consumer removes the coating resin 2 made of either the thermoplastic resin or the resin emulsion after purchasing the product, the virginity of the eraser 1 can be secured at the store.
[0008]
In Claim 3, by covering the end portion of the eraser 1 with the resin, it becomes impossible for the consumer to use the eraser 1 before purchasing a product, and the virginity of the eraser 1 can be secured at low cost. Furthermore, unlike the method of covering the entire eraser 7 such as film packaging, only the end of the eraser 1 protruding side is covered, so that it can be easily covered and the manufacturing cost can be reduced.
[0009]
In Claim 4, since the eraser 1 can be used for the first time when a consumer removes it after purchasing a product by providing the coating resin 2 made of either the thermoplastic resin or the resin emulsion, the virginity of the eraser 1 at the store is improved. It can be secured.
[0010]
DETAILED DESCRIPTION OF THE INVENTION
Embodiments of the present invention will be described with reference to the drawings.
[0011]
1 to 2 show a first embodiment of the present invention (writing instrument 6). In FIG. 1, a detachable cap 3 is provided on the pen tip side of the writing instrument main body, and a cylindrical eraser 1 is attached to the closed side end of the cap 3 so that one end protrudes to the outside. The protruding end of the eraser 1 is covered and fixed with a peelable resin 2 (for example, a hot-melt adhesive mainly composed of ethylene-vinyl acetate resin), so that the consumer peels off the coating resin 2 after purchase. Up to this point, the eraser 1 cannot be used. The coating resin 2 is detachably attached to the top surface portion of the eraser 1 and the side surface portion continuously provided to the peripheral edge portion 11 of the top surface portion.
[0012]
FIG. 3 shows a second embodiment (writing instrument 6) of the present invention. An eraser holding portion 4 is provided at the end of the writing instrument main body opposite to the pen tip, and one end of the cylindrical eraser 1 is attached so as to protrude from the eraser holding portion 4 to the outside. By covering and fixing the protruding side end of the eraser 1 with a releasable resin 2 (for example, polyamide resin), the eraser 1 cannot be used until the consumer peels off the coating resin 2 after purchase. Yes. As in the first embodiment, the coating resin 2 is detachably attached to the top surface portion of the eraser 1 and the side surface portion provided continuously to the peripheral edge portion of the top surface portion.
[0013]
FIG. 4 shows a third embodiment (eraser 7) of the present invention. A rectangular parallelepiped eraser 1 is accommodated in the rectangular parallelepiped case 5 so that one end protrudes to the outside. By covering and fixing the protruding end of the eraser 1 with a peelable resin 2 (for example, polyvinyl acetate emulsion), the eraser 1 cannot be used until the consumer peels off the coated resin 2 after purchase. ing. As in the first embodiment, the coating resin 2 is detachably attached to the top surface portion of the eraser 1 and the side surface portion continuously provided on the peripheral portion of the top surface portion.
[0014]
【The invention's effect】
According to the present invention, the writing instrument with an eraser according to claim 1 prevents the use of the attached eraser to erase the handwriting when the consumer makes a trial writing at the store, and can ensure the virginity of the eraser.
[0015]
Since the writing tool with an eraser according to claim 2 can easily cover the protruding end portion of the eraser, the manufacturing cost can be reduced.
[0016]
The eraser according to claim 3 can prevent the consumer from using the eraser at the store, so the virgin property of the eraser can be secured and the packaging material that becomes garbage can be reduced.
[0017]
The eraser according to claim 4 can easily cover the protruding side end portion of the eraser, so that the manufacturing cost can be reduced and the amount of packaging material that becomes garbage can be reduced.
[Brief description of the drawings]
FIG. 1 is a perspective view showing a first embodiment of the present invention.
FIG. 2 is an enlarged cross-sectional view of a main part of FIG.
FIG. 3 is a perspective view showing a second embodiment of the present invention.
FIG. 4 is a perspective view showing a third embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Eraser 11 Peripheral part 2 Coating resin 3 Cap 4 Eraser holding part 5 Eraser case 6 Writing instrument 7 Character eraser

Claims (4)

A writing instrument with an eraser, characterized in that the top surface portion at the end portion of the eraser protruding side and the side surface portion connected to the peripheral portion of the top surface portion are detachably covered with resin.   The writing instrument with an eraser according to claim 1, wherein the resin is either a thermoplastic resin or a resin emulsion. A character formed by covering and fixing the top surface portion of the protruding side end portion of the eraser accommodated in the case so that one end protrudes to the outside and the side surface portion connected to the peripheral edge portion of the top surface portion so as to be peelable by resin. Eraser.   The eraser according to claim 3, wherein the resin is a thermoplastic resin or a resin emulsion.

Images