CN1021210C - pens - Google Patents

Abstract

A rod-shaped pen is composed of multiple pen units which are longitudinally sleeved together end to end and can be detached from each other, and features that said pen units are composed of a cylindrical main body with a cylindrical boss at one end and with any cross-section and a pen core member inserted in said boss in an inserted mode.

Description

The present invention relates to a writing tool in a broad sense, which is formed by removably fitting and socketing a plurality of writing tool units in a vertical (axis) direction.

According to this pen tool, a plurality of pen tool units with a pen core at the front end are vertically connected to each other in a mutually detachable manner. Those in a row are housed in a long cylindrical pen tube.

In this kind of pen, the refill of the pen unit at the front protrudes from the front end of the pen barrel. We can use this pen core to write and draw. After the unit body is pulled out from the front end of the pen tube, the unit body is inserted into the pen tube from the tail end of the pen tube, and the pen unit unit that is second from the front end in the pen tube is pushed to the front end; The pen core of the unit protrudes from the front end of the pen barrel, and becomes ready for writing.

The conventional writing tool with the above-mentioned structure is used by pushing a plurality of writing tool units sequentially forward, so as long as one of the writing tool units is lost, it cannot be used, and only the serial combination of these writing tool units is used. , because it cannot withstand the pressure of holding a pen and writing, it is necessary to use the pen tube of the jacket. Without this pen tube, it will not be available for use. In addition, the unit body of the pen tool that has been worn out and cannot be used can only be discarded, and cannot be used as a toy or other purposes.

The present invention is a writing tool completed to solve the above-mentioned problems. Its purpose is to provide a pen that can achieve the original function of the writing tool without using a pen tube, and each writing tool unit can also be used as a unit of a building block toy. tool.

Specifically, the present invention provides a rod-shaped writing tool that consists of a plurality of writing tool units that are vertically connected head to tail, and is characterized in that: the writing tool unit system is formed by a The cylindrical body with any cross-sectional shape of the cylindrical protrusion is composed of a refill member inserted into the cylindrical protrusion, and the cylindrical body is formed with a cylindrical body that can be used for another pen unit. The protruding part is free to install and disassemble and is a longitudinal embedding hole, and the cylindrical protruding part is formed with an embedding hole for the core tube part of the above-mentioned pen core member to be inserted and inserted freely. The outer circumference of the cylindrical body is provided with At least one axially extending fitting convex strip and at least one axially extending fitting groove correspondingly fitted to the fitting convex strip can be used to detachably engage with the above-mentioned other writing tool unit in a horizontal parallel state By.

Hereinafter, an embodiment of the present invention will be described in detail according to the accompanying drawings.

Fig. 1 shows the front view of a writing tool according to an embodiment of the present invention;

Fig. 2 shows the enlarged perspective view of the pen unit unit that constitutes the pen of the present invention;

Fig. 3 is the enlarged exploded perspective view of the above-mentioned pen unit;

Fig. 4 is the longitudinal sectional view of the above-mentioned pen tool unit;

Figure 5 is a top view of the pen unit;

Figure 6 is the bottom view of the pen unit;

Fig. 7 (A) to (F) represent the government view of various modified examples of pen tool unit of the present invention;

Fig. 8 and Fig. 9 respectively show the front views of the writing tool unit bodies of the present invention connected horizontally to form different shapes.

As shown in FIG. 1 , the writing tool 1 of this embodiment is composed of a plurality of writing tool units 2 that are connected in series in the longitudinal (axial) direction and are detachably fitted together.

The above-mentioned writing tool unit 2 is shown in Fig. 2 to Fig. 6, and is composed of a cylindrical body 4 and a refill member 6 with a cylindrical protrusion 3 formed by a step 4a at one end.

The cylindrical body 4 and the cylindrical protrusion 3 both form a square tube with similar cross section, and the cross section of the cylindrical protrusion 3 is smaller than that of the cylindrical body 4, and they are arranged concentrically to form a tower shape. One end of the cylindrical protrusion 3 and the opposite end of the cylindrical body 4 are respectively concentrically formed with insertion holes 5 and 9 opening at each end, and the insertion holes 5 and 9 are connected and connected between the two. A pair of opposite blocking protrusions 10 are protruded from the junction portion. The insertion hole 5 of the cylindrical protrusion 3 is formed Round cross section. And the above-mentioned stop protrusion 10 only needs to be more than one, not necessarily more than one pair. The inserting hole 9 of the cylindrical body 4 is formed to have the size of the cylindrical protruding portion 3 just capable of inserting another identical writing tool unit and has the same cross-sectional angle as its shape. The outer peripheral surface of the cylindrical body 4 is formed with a fitting convex strip 7 extending along the entire length in the longitudinal direction on one of the opposite surfaces at the central part in the width direction, and on the other opposite surface is also formed with a protrusion along the entire length in the longitudinal direction at the central part in the width direction. Extended fitting groove 8 . The above-mentioned fitting convex strip 7 forms a cross-sectional shape with a slightly narrower width at the base end and a slightly wider width at the protruding end, while the above-mentioned fitting groove 8 forms a cross-sectional shape corresponding to the above-mentioned fitting convex strip 7, that is, the bottom is wider And the same cross-sectional shape with a narrower opening.

The above-mentioned core member 6 is formed in a generally cylindrical core tube 12 with a core material 13 such as a pencil lead, and one end of the core material 13 protrudes axially from the front end of the core tube 12 to a certain length. . Also, although omitted in the figure, the inner peripheral surface of the core tube 12 is formed with a protruding shoulder to keep the core material 13 in position and prevent it from moving toward the base end of the core tube 12. The base end side then forms the larger inner diameter that can easily insert the core material 13 of another pen core member. In addition, ribs 11 extending longitudinally protrude from the outer peripheral surface of the base end half of the core tube 12 , and several ribs 11 are arranged at equal intervals along the circumferential direction of the core tube 12 . In this embodiment, the front end half of the core tube 12 is formed into a conical shape with a thinner front end. This is to make the core tube 12 easier to insert into the insertion hole 9 and to have a beautiful appearance. The barrel 12 may be formed in a simple cylindrical shape as a whole. Also, if the core tube 12 can be inserted and held in the insertion hole 5 with proper tightness or frictional force, the rib 11 may not be provided.

The above-mentioned writing tool unit 2 is formed by detachably inserting the core tube 12 of the pen core member 6 into the insertion hole 5 of the cylindrical protrusion 3 from above, and making the base end of the core tube 12 abut against the stopper protrusion 10. The combination forms the state shown in Figure 4. In this combined state, the cylindrical protrusion 3 protrudes from the step 4a of the cylindrical body 4, the front half of the core tube 12 protrudes from the cylindrical protrusion 3, and the core material 13 protrudes from the center of the core tube 12. Above, so as to constitute a multi-layered tower with the core material 13 as the center. After the two writing unit units 2 are joined, the cylindrical protrusion 3 of the lower writing unit unit 2 can be plugged and inserted freely into the insertion hole 9 of the cylindrical body 4 of the upper writing unit unit 2, and then bottom pen The core tube 12 and the core material 13 of the unit body 2 are then just accommodated in the insertion hole 9 of the upper pen tool unit body 2 and the hole in the bottom half of the base end of the core tube 12 respectively. Also, in this case, the lower end of the cylindrical body 4 of the upper pen unit 2 abuts against the step 4a of the tubular body 4 of the lower pen unit 2 to regulate the longitudinal direction of the upper and lower pen units 2, 2 Connect, and leave appropriate gap between each core material 13,13 of upper and lower pen tool unit body 2,2, to prevent the core material 13,13 from colliding and being damaged.

Insert the required number of pen unit units 2 into a row longitudinally in front and back according to the above-mentioned method, and then a pen unit 1 with an appropriate length that is easy to hold and write as shown in Figure 1 can be formed, and the pen unit at the front end can be used The core 13 of body 2 writes.

Also, as shown in Figure 8, the fitting convex strips 7 (or fittings) provided on both sides or one side of the outer peripheral surface of the barrel body 4 of the pen tool unit 2 at the front end of the writing tool 1 shown in Figure 1 can be utilized. Groove 8) and the two sides or one side of the outer peripheral surface of the cylindrical body 4 of the other writing tool unit 2 are fitted with the fitting groove 8 (or fitting convex strip 7), and are horizontally parallel and It can be connected freely. If it is connected in this way, two or several parallel lines can be drawn with great accuracy at the same time by drawing the line once, and the number of the lines depends on the number of pen unit units 2 connected horizontally, so it is not necessary to use parallel gauges, The T-square can also save the trouble of drawing lines many times. Furthermore, the aforementioned parallel lines are not limited to straight lines, any parallel curves or irregular parallel lines can be easily drawn in one action, so it is very suitable for drawing outline characters, advertisement pictures, pattern pictures, etc., which is very convenient. At this time, if the pen tool 1 composed of the pen tool unit 2 with the pen core 13 of different thickness or color is adopted, then multiple colors or lines with different thickness can be drawn in one action, so that the pattern, calligraphy and painting are more varied.

When the core material 13 is used to the point that it is no longer suitable for writing, the pen unit unit 2 at the front end of Fig. 1 can be pulled out and inserted into the pen unit unit 2 at the end, which is originally the pen unit unit 2 in the second section. Become the pen unit unit 2 at the front end, and the unused core material 13 exposed at the front end can be used.

In addition, we can also decompose multiple pens and use the pen unit 2 as the basic unit of the building block toy, and freely assemble them vertically and horizontally to form various three-dimensional shapes as shown in Figure 9, which is a church , but obviously can be combined into airplanes, animals, buildings, bridges, etc. according to individual creations, which is very beneficial for inspiring students' thinking and imagination. At this point, the core material 13 is not exhausted. The unit body 2 can also be used as a building block unit, but if the unit body 2 that has used the core material 13 is collected as a unit of a building block toy, the effect of waste utilization can be received.

In the aforementioned embodiment, the pen core member 6 that constitutes the pen unit 2 is freely pluggable for the cylindrical protrusion 3 of the cylindrical body 4, so the core material 13 of the pen core member 6 of the pen unit 2 is removed. In addition to pencil lead, you can also use other different core materials such as colored pencils, charcoal pencils, crayons, chalk, ballpoint pens, signature pens, etc., and use core materials of the same color or different colors, or even non-refill materials. Eyebrow pencils, lipsticks, erasers, etc. are all available. These uses are certainly included in the writing tool in the broad sense of the present invention. As a product, in addition to pens using different or same core materials, a pen unit with an eraser as a core can also be mixed with a plurality of pen units with a pencil lead or the like. Furthermore, when the pen core member 6 adopts strip-shaped core materials such as crayons, eyebrow pencils, lipsticks, etc. with a thicker diameter, the strip-shaped core material can also be directly inserted into the cylindrical shape of the cylindrical body 4 without the core tube 12. The protruding portion 3 is inserted into the insertion hole 5 . But at this time, its length should be set so that after the two pen units are socketed, the front end of the lower core material will not push against the lower end of the upper core material, or the length of the insertion hole of the cylindrical protrusion 3 should be appropriately extended . The cross-sectional shape of the pen core member 6 is usually circular, but it is also possible to form an angle or an ellipse, but at this time the insertion hole 5 of the cylindrical protrusion 3 should form the same cross-sectional shape.

Also in the above-mentioned embodiment, the four sides of the cylindrical body 4 with a square or rectangular cross-section form the fitting protrusions 7 and the fitting grooves 8 alternately. Fitting grooves are also available. The present invention is not limited to a pair of fitting convex strips 7 and fitting grooves 8, as long as at least one pair is provided and arranged on any different surface of the outer peripheral surface of the cylindrical body 4 without hindering the pen unit body 2. The horizontal connection is sufficient. Therefore, it is not necessary to provide a fitting convex line and multiple fitting grooves on the outer peripheral surface of the cylindrical body, or conversely, provide a plurality of fitting convex lines and a fitting groove. Furthermore, the cross-sectional shapes of the fitting protrusions and the fitting grooves are not limited to the aforementioned shapes, and it is also acceptable if they are formed in a T-shape.

The cross-sectional shape of the cylindrical body 4 and the cylindrical protrusion 3 of the pen unit unit 2 of the pen of the present invention is shown in Figure 7 (A) to (F), which can be polygons such as triangles and hexagons. , oval, oval or any other shape, so as to increase the fun of shape changes and combinations.

In order to adapt to the mass production of the pen unit of the present invention, except for the core material, other parts should be injection molded products of thermoplastic resin.

The fitting protrusions and fitting grooves in the foregoing embodiments are formed longitudinally along the outer peripheral surface of the cylindrical body, but they are not limited to the longitudinal direction, and it is also possible to form them along the transverse direction.

In the present invention, as mentioned above, its pen unit system is composed of a cylindrical body with a cylindrical protrusion and a refill member inserted and held in the cylindrical protrusion, and a plurality of pen units are combined into one The cylinder protrusion of the pen unit is inserted into the insertion hole provided by the cylindrical body of the other pen unit to form a row of removable plugs into one body, so that it is not necessary to use the conventional pen as mentioned above. The outer pen tube is used as a pen tool; when the refill of the front-end pen unit is exhausted, just pull out the front-most pen unit and insert it into the rearmost pen unit In the hole, you can use the pen core that was originally the pen unit in the second section to write; in case one or two pen units are lost, the overall length of the pen is only shortened, but it can still be used as usual; According to the present invention, the fitting protrusions or fitting grooves provided on the outer peripheral surface of the cylindrical body of the pen unit can be fitted into the fitting grooves or fitting grooves formed on the outer peripheral surface of another writing unit. A plurality of pen unit units are connected horizontally side by side by a convex strip, so it can also be used as a building block toy to combine into various shapes of objects at will; The effect of recyclable waste utilization; in addition, if the front end of the pen is horizontally connected to several pen units, so that the front end of the pen has multiple refills in parallel, several lines can be drawn at the same time in one writing action. All kinds of parallel lines can be regarded as a very convenient pen tool with a very educational and inspiring effect.

Claims (7)

1. A rod-shaped writing tool composed of a plurality of writing unit units that are removably connected to each other in the longitudinal direction. It is composed of a surface-shaped cylindrical body and a refill member that is pluggably inserted into the above-mentioned cylindrical protrusion, and one end of the above-mentioned cylindrical body is formed with a cylindrical protrusion for another pen unit to be detachable. The ground is an inserting hole for insertion and connection in a longitudinal direction, and the cylindrical protrusion is formed with an insertion hole for the core tube end of the above-mentioned pen core member to be plugged and detachable. The writing tool unit body is horizontally juxtaposed at least one fitting protruding line and at least one fitting groove correspondingly matched with the fitting protruding line which can be fitted and connected in a detachable manner. 2. The writing instrument according to claim 1, characterized in that the cylindrical body is coaxially protruding and integrally formed into a cylindrical shape with a cross-sectional shape similar to that of the cylindrical body but with a smaller outer diameter. Protrusion. 3. The writing instrument according to claim 1, characterized in that the cylindrical body is coaxially protruding and integrally formed with a cross-sectional shape different from that of the cylindrical body and having a smaller outer diameter. Cylindrical protrusion. 4. The writing instrument according to claim 2 or 3, characterized in that the inserting hole provided on the cylindrical body is formed to have the same cross-sectional shape as the cylindrical protrusion formed on the cylindrical body, and has The size that allows the cylindrical protrusion of another pen tool unit to be plugged in and out of the hole freely. 5. The writing tool according to any one of claims 1, 2, and 3, characterized in that the fitting convex strips provided on the outer peripheral surface of the cylindrical body form the narrower and protruding end of the cross-section. It is wider and extends slightly along the longitudinal length of the cylindrical body, and the fitting groove on the outer peripheral surface of the cylindrical body forms a cross-section corresponding to the shape of the above-mentioned fitting convex strip. 6. The writing tool according to any one of claims 1, 2, and 3, characterized in that the core member has a core tube and a core material inserted on the core tube and one end protruding out of the core tube , and the base end of the core tube is removably inserted and held in the insertion hole of the above-mentioned cylindrical protrusion. 7. The writing instrument according to any one of claims 1, 2, and 3, characterized in that only the base end of the refill member is plugged and held in the above-mentioned cylindrical protrusion, and one end is free from The cylindrical protrusion protrudes from the outer core material.

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