JP2520375Y2 - Multicolor writing instruments - Google Patents

Description

[Detailed description of the device]

[Industrial applications]

The present invention relates to a multicolor writing instrument in which a plurality of cartridges are removably fitted and connected in series in a longitudinal (axial) direction.

[Prior art]

Conventionally, for example, writing instruments such as colored pencils and crayons are arranged in a row of different colors such as 6 colors and 12 colors.
It is generally stored in one box or the like. Also, as a single-color writing instrument, there is one shown in Japanese Utility Model Publication No. 60-14633. This writing instrument is one in which a plurality of cartridges having cores of the same color at their tips are removably fitted and connected to each other in the longitudinal direction and housed in a long outer cylinder. In this writing instrument, the cartridge located at the most distal end from the tip of the outer cylinder is made to project the core, and letters etc. are written by this core, and when the core is worn out and cannot be used, the most advanced cartridge is placed in the outer cylinder. By pulling out from the tip and inserting this cartridge into the outer tube from the end of the outer tube, the cartridge located second from the tip in this outer tube is pushed toward the front end side, and the core of this cartridge becomes the outer tube. It projects from the tip of the and is ready for writing.

[Problems to be solved by the device]

The conventional general writing instrument configured as described above has a problem that it is inconvenient to carry since a plurality of colored pencils, crayons, etc. arranged side by side in one box are bulky. In addition, since the conventional single-color writing instruments have cartridges connected in the vertical direction, they are about the same size as one pencil and are convenient to carry, but you can put multiple cartridges in the outer cylinder and Since it is used by pushing it forward, the operation of using a multicolor cartridge is troublesome and time-consuming, and there is a problem that it is not practical to use it as a multicolor writing instrument. The present invention has been made to solve the above-mentioned problems, and it is convenient to carry because it is as small as a pencil or less when carried, and a cartridge of a desired color can be easily used. It is intended to provide a multicolor writing instrument.

[Means for Solving the Problems]

The multicolor writing instrument according to the present invention has a cylindrical body having a cylindrical projection formed at one end, and a core in which a base end of the core is fitted and held in a substantially cylindrical core holder, and the core projects from the tip of the core holder. A core member, and a cartridge is formed by detachably fitting and holding the base portion of the lead holder to the tubular projection portion of the tubular body, and the color of the tubular body and the lead is the same or similar. Cartridges with different core colors, the tubular protrusions of the other cartridge adjacent to the insertion hole provided in the tubular main body of the adjacent cartridge are detachably inserted and held, and The core of the other cartridge is loosely inserted into the base of the core holder fitted to the cylindrical protrusion of the cartridge,
About 6 to 12 cartridges are vertically connected in series and connected to each other.

[Action]

In the multicolor writing instrument according to the present invention, about 6 to 12 cartridges having different core colors are fitted and connected in series in the vertical direction. Therefore, when these cartridges are connected, the length is a normal pencil. The size can be the same as or smaller than, and the size can be the same as an ordinary colored pencil, and is not bulky when carried. In addition, by distinguishing the cartridge having the core of the desired color by the color of the tubular main body of the cartridge, the cartridge on the tip side of the desired cartridge is removed and the removed cartridge is positioned at the end so that this cartridge is at the forefront. By connecting to the cartridge, you can write characters and figures with the desired color, that is, with the desired core, with almost no change in the overall length. The cartridge having the core of any color can be used by the same operation, and thus the cartridge having the core of any color can be used easily and in a short time. Further, when the core is worn out and cannot be used, the core member having the core of the same color or the cartridge having the core member of the same color can be replaced with a new one and used. Then, the rigidity as a writing instrument is ensured by fitting and holding the cylindrical projection of the other cartridge adjacent to the fitting hole provided in the cylindrical main body of one adjacent cartridge, and the outer cylinder is used. Even if the writing instrument is held by hand with normal force and used, it will not buckle or bend and become difficult to use.

【Example】

An embodiment of the present invention will be described below with reference to FIGS. As shown in FIG. 1, the multicolor writing instrument 1 of this embodiment is
A plurality of cartridges 2 are detachably fitted and connected in series in the vertical (axial) direction to be in a use state as a writing instrument. As shown in FIGS. 2 to 6, the cartridge 2 is composed of a cylindrical body 4 having a cylindrical protrusion 3 formed at one end via a step 4a, and a core member (core unit) 6. Has been done. The cylindrical main body 4 and the cylindrical protrusion 3 are formed in a square rectangular tube shape whose cross section is similar to each other. The cylindrical main body 4 has a smaller cross section than the cylindrical main body 4, and these are arranged coaxially. ing. The cylindrical projection 3 has a fitting insertion hole 5 opened at one end thereof.
However, the tubular body 4 is coaxially formed with a fitting insertion hole 9 opening at the other end thereof, and the fitting insertion hole 5 and the fitting insertion hole 9 are continuous with each other and face the boundary portion between them. A pair of stoppers 10 are provided so as to project. The fitting hole 5 of the cylindrical protrusion 3 is formed in a circular cross section. The stopper 10 is 1
It is sufficient that the number is one or more, and not necessarily one pair. The fitting insertion hole 9 of the cylindrical main body 4 is formed to have a rectangular cross section similar to the outer shape of the cylindrical projection 3 of another cartridge having the same shape as the cylindrical projection 3 of the same shape. In the core member 6, the base end of a core 8 of a colored pencil is fitted and fixed to a substantially cylindrical core holder 7, and the core 8 projects from the tip of the core holder 7 in the vertical (axial) direction by a certain length. . In addition,
Although not shown in the drawings, a protrusion is provided on the inner peripheral surface of the lead holder 7 to support the lead 8 so that the lead 8 does not move vertically to the base end side of the lead holder 7, and the base end is larger than the protrusion. The side is formed with a slightly larger inner diameter so that the core 8 can be loosely inserted. Further, the core holder 7 is provided with ribs 7a protruding in the longitudinal direction on the outer peripheral surface of the base end side half, and the ribs 7a are provided at several positions in the circumferential direction of the core holder 7 at equal intervals. In this embodiment, the tip half of the holder 7 is tapered to form a tapered conical shape. The taper formed on the front half of the core holder 7 is formed to improve the appearance, and the core holder may be entirely cylindrical without the taper. The rib 7a may be omitted if the lead holder 7 can be fitted and held in the fitting hole 5 by appropriate tightness or frictional force as described later. Then, in one cartridge 2, the cylindrical body 4, the cylindrical protrusion 3, the core holder 7, and the core 8 are colored in the same or similar color, and each cartridge 2 includes the core 8 and the cylindrical body 4. First, the colors of the above-mentioned parts are colored differently from each other. In the cartridge 2, the core holder 7 of the core member 6 is removably fitted and held in the fitting insertion hole 5 of the cylindrical protrusion 3 from above, and the base side end of the core holder 7 is brought into contact with the stopper 10. , Assembled as shown in FIG. In this assembled state, the tubular projection 3 projects from the tubular body 4 via the step 4a, the front half of the lead holder 7 projects from the projection 3, and the lead 8 further projects from the holder 7, It is configured as a stepped coaxial heavy cylinder centering on 8. The cylindrical protrusion 3 of the lower cartridge 2 having the same shape and a different color such as the core 8 is detachably fitted and held in the fitting insertion hole 9 of the cylindrical main body 4 of the upper cartridge 2, and the lower cartridge The two core holders 7 and 8 are housed in the upper insertion hole 9 of the cartridge 2 and the half of the core holder 7 on the base side. In this case, the lower end of the tubular body 4 of the upper cartridge 2 and the step 4a of the tubular body 4 of the lower cartridge 2 are brought into contact with each other to position the upper and lower cartridges 2, 2 in the vertical direction. A gap is created between the two cores 8 and 8 to prevent damage to the cores 8 and 8. By repeating the above operation, as shown in FIG. 1, six cartridges 2 are fitted and connected in series in the longitudinal direction to form one writing instrument 1 having a length that facilitates writing. The embodiment shown in FIG. 1 has a red color from the upper side to the lower side,
Writing instrument 1 in which six cartridges 2 formed in each part of a color including a core 8 in six colors of orange, yellow, green, blue, and purple are sequentially connected.
Is. When carrying in the state shown in FIG. 1 and wanting to use, for example, the blue core cartridge 2, this is distinguished by the cylindrical main body 4, and the second cartridge 2 from the bottom of FIG. By removing the cartridge 2 above the third from the bottom so that it becomes the upper end) and connecting the removed cartridge 2 to the cartridge 2 at the end, blue letters and figures are written. Further, when writing characters of other colors, the cartridge having the core of the desired color may be used as the leading edge by the same operation as described above. In this embodiment, when the core 8 is worn out and cannot be used, the core member having the core of the same color or the cartridge having the core member of the same color may be replaced with a new one. It should be noted that although the above embodiment describes a multicolor writing instrument of 6 colors, the present invention can appropriately increase the number of cartridges having different colors of about 12 colors with one writing instrument, and the combination of colors can be appropriately changed. A cartridge having a core of a colored pencil that can be changed may be mixed with a cartridge having an eraser containing sand as a core. Furthermore, a detachable cap may be used to prevent breakage of the most advanced core when carrying, and a cartridge without a core member may be used as the cap. Further, in the above-mentioned embodiment, the case of using the core of the colored pencil has been described, but in the present invention, a core of a crayon, a felt pen or the like other than the core of the colored pencil can be used. The cross-sectional outer shape of the cylindrical body, the cylindrical protrusion, and the core holder of the present invention is not necessarily limited to the shape of the embodiment. For example, the cross-sectional outer shape of the cylindrical body may be a circular hexagon or the like. It can be appropriately changed such as a polygonal shape. In the cartridge of the present invention, it is preferable to use an injection molded product made of a thermoplastic resin for each part except the core so as to be suitable for mass production.

[Effect of device]

As described above, according to the present invention, the color of the cylindrical main body, the core holder, and the core of one cartridge are the same or similar colors, and a plurality of cartridges having different core colors are arranged in the vertical direction. Since they are fitted and connected in series, the length can be made equal to or less than that of a normal colored pencil when about 6 to 12 colors, that is, about 6 to 12 cartridges are connected. It can be made into the same size as a regular colored pencil and is not bulky when carried.
Further, according to this invention, the cartridge having the core of the desired color is discriminated by the color of the tubular main body of the cartridge, and the cartridge on the tip side of the desired cartridge is removed and removed so that this cartridge becomes the most advanced cartridge. By connecting to the cartridge located at the end, it is possible to write letters and figures using the core of the desired cartridge, that is, in the desired color, with almost no change in the overall length. Since the cartridge having the color core can be used by the same operation, the cartridge having the color core can be used easily and in a short time. Further, when the core is worn out and cannot be used, the core member having the core of the same color or the cartridge having the core member of the same color can be replaced with a new one and used. Then, the rigidity as a writing instrument is ensured by using the external projection to insert and hold the cylindrical projection of the other cartridge adjacent to the insertion hole provided in the cylindrical main body of the adjacent cartridge. Even if the writing instrument is used by hand with normal force without it, there is an effect that it does not become difficult to use because it buckles or bends.

[Brief description of drawings]

FIG. 1 is a front view showing a writing instrument according to an embodiment of the present invention, FIGS. 2 and 3 are enlarged perspective views and enlarged exploded perspective views of a cartridge constituting the writing instrument, and FIG. 4 is a longitudinal section of the cartridge. FIG. 5, FIG. 5 and FIG. 6 are a plan view and a bottom view of the cartridge. 1 ... Writing implement, 2 ... Cartridge, 3 ... Cylindrical protrusion, 4 ...
Cylindrical body, 5 ... Fitting hole, 6 ... Core member, 7 ... Core holder, 7a
... ribs, 8 ... core, 9 ... fitting holes, 10 ... stoppers.

Claims (1)

(57) [Scope of utility model registration request] 1. A core member having a cylindrical main body having a cylindrical projection formed at one end, and a core having a proximal end of the core fitted and held in a substantially cylindrical core holder protruding from the tip of the core holder. And a cartridge configuration in which the base portion of the lead holder is detachably fitted and held in the tubular protrusion portion of the tubular body, and the color of the tubular body, the lead holder, and the lead are the same or similar. And the color of
A cartridge having different core colors is detachably fitted and held by a cylindrical protrusion of the other cartridge adjacent to a fitting hole provided in the cylindrical main body of the adjacent cartridge. A multicolor writing instrument characterized in that the core of the other cartridge is loosely inserted into the base of the core holder fitted to the protrusion, and about 6 to 12 cartridges are vertically fitted in series and connected.