Writing implement
A technology for writing tools and colorants, applied in writing tools, brushes, printing, etc., can solve the problems of incomplete drawings, inability to advance and retreat, and lack of practicability.
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no. 1 example
[0143] Below, use Figure 2 to Figure 4 , to describe the first embodiment. This example is equivalent to figure 1 The "g" type in.
[0144] This writing instrument has a cylindrical shaft member 80 and a nib member 10 mounted on its front (upper side in FIG. 81. The liquid storage member 81 is made of a synthetic resin such as polypropylene (pp), and its entirety is colorless and transparent so that the internal structure of the shaft member 80 can be seen. In addition, it is not limited to form a cylindrical shape, For example, the outer periphery may be formed in a polygonal shape.
[0145] In addition, it is not limited to being colorless and transparent, for example, it may be colored transparent or translucent. In addition, it is not limited to being transparent as a whole, for example, a transparent window may be provided in a part thereof so that the inside can be seen.
[0146] In addition, while the whole is transparent, a transparent or opaque elastic handle c...
no. 2 example
[0178] 5 and 6 show the second embodiment. This example is equivalent to figure 1 Type "c" in.
[0179] This embodiment differs from the first embodiment in the shape of the colorant adding core 26 . That is, in the first embodiment, the contact portion with the ink guide core 27 and the contact portion with the colorant absorbing core 41 have smaller diameters than other portions to reduce the contact portion. In this embodiment, however, the diameter is the same everywhere. In the first embodiment, the purpose is to supply the ink liquid 31 in an appropriate amount and to restrict the backflow of the colorant 20 , while in the second embodiment, the purpose is to supply the ink liquid 31 smoothly.
no. 3 example
[0181] Figure 7 and Figure 8 Indicates the third embodiment. This example is equivalent to figure 1 The "g" type in.
[0182] The difference between this embodiment and the first embodiment is also the shape of the colorant-adding core 26 . That is, the contact portion with the ink guide core 27 and the contact portion with the toner adsorption core 41 form a flow rate restricting member 26a (throttle member) having a narrow diameter. Further, the flow rate limiting member 26 a is filled with a cylindrical flow rate limiting member 29 made of an elastic material. Thereby, as in the first embodiment, it is possible to supply an appropriate amount of the ink liquid 31 and to restrict the backflow of the colorant 20 . Therefore, a certain color and density can be maintained for a long time.
[0183] In addition, a material that does not permeate the liquid 31 for ink, such as synthetic rubber, is used for the flow restricting member 29 formed of an elastic body.
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