JPH0653193U - Ballpoint pen - Google Patents

Abstract

(57) [Abstract] [Purpose] This ball-point pen is provided with a magnifying lens function without changing its form as a ball-point pen so that it can be used as a writing instrument or as a magnifying lens. [Structure] A cylindrical lens body 4 having a semicircular cross section is provided continuously to a mounting portion 3 to which a pen core body 2 is mounted.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a ballpoint pen, and more particularly to a ballpoint pen having a function of enlarging and viewing characters and the like.

[0002]

[Prior art]

 Conventionally, when characters in magazines and newspapers are small and difficult to read, they are magnified and viewed with a magnifying glass.

[0003]

[Problems to be solved by the device]

 However, since the magnifying glass is large and bulky, it is not carried, and it is difficult to read small prints such as magazines and newspapers in places where the magnifying glass is not available, such as outdoors. For this reason, there is a demand for a tool that is easy to carry and can read small characters.

Therefore, the present inventor has focused on a ball-point pen that is a handy tool and is easy to carry, and in view of the above-mentioned circumstances, the present invention is expanded to this ball-point pen without greatly changing the form of the ball-point pen. The object is to provide a lens function, and an object thereof is to provide a ball-point pen that can exhibit both functions of a writing instrument and a magnifying lens.

[0005]

[Means for Solving the Problems]

 The present invention has been made in consideration of the above problems, and provides a ball-point pen characterized by comprising a cylindrical lens body having a semicircular cross-section in a continuous manner in a mounting portion to which a pen core is mounted, The problems described above are solved.

[0006]

[Action]

 In the present invention, it can be used as an ordinary writing instrument, and by placing the cylindrical lens body on the paper surface, it becomes possible to magnify and see characters through the cylindrical lens body.

[0007]

【Example】

 Next, the present invention will be described in detail based on an embodiment shown in FIGS. In the figure, reference numeral 1 denotes a ballpoint pen. As shown in FIG. 1, the ballpoint pen 1 has a mounting portion 3 as a tip portion of a ballpoint pen to which a pen core 2 is detachably mounted, and a mounting portion 3 which is continuous with the mounting portion 3. The cross-sectional shape of the ball-point pen is semi-circular, and the cylindrical lens body 4 is long in the longitudinal direction of the ball-point pen. The mounting portion 3 and the cylindrical lens body 4 are integrally molded from a transparent material. Then, the pen core body 2 mounted in the mounting hole 5 provided in the mounting portion 3 is fixed by the crown material 6 screwed to the tip of the mounting portion 3, and the pen core body 2 is removed by removing the crown material 6. Are provided so that they can be replaced. Reference numeral 7 denotes a cap that covers the mounting portion 3, and its shape is provided so as to be continuous with the outer peripheral shape of the cylindrical lens body 4 when the mounting portion 3 is covered.

[0008]

[Effect of device]

 As described above, the ballpoint pen of the present invention is provided with the cylindrical lens body having a semicircular cross-section continuously in the mounting portion to which the pen core body is mounted. It is easy to put on and carry, and since the cylinder lens body is provided as the body of the ballpoint pen, it does not cause any inconvenience in the writing operation. Then, with this cylindrical lens body, it becomes possible to magnify and see characters, etc. In addition, the cylindrical lens body allows the area to be enlarged to be long in one direction, making it easier to read sentences and the like. In this way, the lens function part, which is a writing instrument, is provided in the main body of the ballpoint pen, so that characters and the like can be easily magnified and viewed as needed, which greatly improves the commercialability of the ballpoint pen.

[Brief description of drawings]

FIG. 1 is an explanatory view showing an embodiment of a ballpoint pen according to the present invention, in which (a) shows a front surface, (b) shows a side surface,
(C) shows the side surface on the cap side, and (D) shows the mounting state of the pen core.

2A and 2B are explanatory views showing a cross section of one embodiment, in which FIG. 2A shows a cross section taken along the line A in FIG. 1D, and FIG.
FIG. 1D is a cross-sectional view of a portion B of FIG.
1 (d) shows a cross section at D part of FIG. 1 (d), and (e) shows a cross section at E part of FIG. 1 (d).

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 ... Ballpoint pen 2 ... Pen core 3 ... Mounting part 4 ... Cylindrical lens body 5 ... Mounting hole 6 ... Crown material 7 ... Cap

Claims (1)

[Scope of utility model registration request] 1. A ball-point pen characterized by comprising a cylindrical lens body having a semicircular cross section in a continuous manner to a mounting portion to which a pen core is mounted.