Convertible writing instrument assemblies are provided, including an outer barrel having a tapered nosecone with an aperture for a writing instrument tip and a grip portion, and an aperture for receiving an eraser or a push button therethrough, wherein the writing instrument assembly provides selective access to a volume defined by the outer barrel, and wherein the outer barrel and the volume are collectively configured to operably and interchangeably receive a mechanical pencil insert having the eraser and a retractable pen insert having the push button. Mechanical pencils and pens utilizing the convertible writing instrument assemblies are also provided, along with kits for providing such mechanical pencils and pens.

Various embodiments provide a position pointer that includes a plurality of refill bodies that can be configured at low cost, and ensures freedom from malfunction during exchange of signals with a sensor section of a position detection device. In one embodiment, the position pointer includes a tubular housing having an opening portion, a plurality of refill bodies, a refill body selection mechanism section that selectively causes at least a tip of one of the plurality of refill bodies to project from the opening portion, a magnetic material core, and a coil wound around the magnetic material core. The refill bodies not selected by the refill body selection mechanism section are located away from a through hole of the magnetic material core.

A multi-function writing implement comprises a pen shaft, a colored pen assembly, and an erasing pen assembly. The colored pen assembly is arranged at one end of the pen shaft. The colored pen assembly includes a cartridge seat, a nib seat, a plurality of colored cartridges, a plurality of relay cartridges, and a plurality of colored ink cotton tubes. The cartridge seat is connected to the pen shaft. One end of the nib seat has a plurality of cartridge slots. The colored cartridges are respectively arranged at the cartridge slots. The relay cartridges are respectively connected to the colored cartridges and arranged in the cartridge seat. The colored ink cotton tubes are respectively connected to the relay cartridges and arranged in the pen shaft and the cartridge in parallel. The erasing pen assembly is arranged at the other end of the pen shaft opposite to the colored pen assembly.

Convertible writing instrument assemblies are provided, including an outer barrel having a tapered nosecone with an aperture for a writing instrument tip and a grip portion, and an aperture for receiving an eraser or a push button therethrough, wherein the writing instrument assembly provides selective access to a volume defined by the outer barrel, and wherein the outer barrel and the volume are collectively configured to operably and interchangeably receive a mechanical pencil insert having the eraser and a retractable pen insert having the push button. Mechanical pencils and pens utilizing the convertible writing instrument assemblies are also provided, along with kits for providing such mechanical pencils and pens.

A multicolor marker assembly for making a multicolored mark on a bingo card includes a bottle that has a plurality of chambers being integrated therein. Each of the chambers contains a fluid pigment of a respective color. An applicator is removably coupled to the bottle and the applicator is comprised of a fluid permeable material to absorb the fluid pigment contained in each of the chambers. Additionally, the applicator releases the fluid pigment in each of the chambers when the applicator is pressed against a surface to make a mark comprising a plurality of colors. A cap is positionable over the applicator to inhibit the applicator from releasing the fluid pigments.

A multicolor marker assembly for making a multicolored mark on a bingo card includes a bottle that has a plurality of chambers being integrated therein. Each of the chambers contains a fluid pigment of a respective color. An applicator is removably coupled to the bottle and the applicator is comprised of a fluid permeable material to absorb the fluid pigment contained in each of the chambers. Additionally, the applicator releases the fluid pigment in each of the chambers when the applicator is pressed against a surface to make a mark comprising a plurality of colors. A cap is positionable over the applicator to inhibit the applicator from releasing the fluid pigments.

A handheld implement having a shaft with two shaft parts which are releasably connectable together via a plug-in coupling, with a coupling unit at each front end of the shaft parts. Each coupling unit has a slide held in a guide hole open on a face side in the associated shaft part and protrudes beyond the guide hole with a slide portion, the free end of which is formed as a latching fork that has a latching opening. The slide portion bears a latching protrusion behind the latching fork in the sliding direction. The coupling unit has a guide sleeve that encloses the slide and is guided into the guide hole counter to a restoring force, and when the front ends, having the coupling units, of the shaft parts are pressed together, the latching fork of one coupling unit is latchable on the latching protrusion of the other coupling unit.

Various embodiments provide a position pointer that includes a plurality of refill bodies that can be configured at low cost, and ensures freedom from malfunction during exchange of signals with a sensor section of a position detection device. In one embodiment, the position pointer includes a tubular housing having an opening portion, a plurality of refill bodies, a refill body selection mechanism section that selectively causes at least a tip of one of the plurality of refill bodies to project from the opening portion, a magnetic material core, and a coil wound around the magnetic material core. The refill bodies not selected by the refill body selection mechanism section are located away from a through hole of the magnetic material core.

A refill for a writing tool includes an ink containing tube that is made from a resin material and formed in a straight cylindrical shape, and a writing tip that is attached to an end of the ink containing tube. A press-fit portion, formed at the end of the ink containing tube, has a thickness being made thickened toward an inner circumferential surface and has an opening hole penetrating in an axial direction at a central portion of the press-fit portion. The writing tip or a relay member supporting the writing tip is press-fitted and attached to the press-fit portion. The refill for a writing tool can ensure a necessary and sufficient amount of ink stored without expanding an outer diameter of the ink containing tube, and sufficiently secure mechanical strength of an end portion, and a writing tool using the same can be provided.

A multi-function writing implement includes a pen shaft, a colored pen assembly, and an erasing pen assembly. The colored pen assembly is arranged at one end of the pen shaft. The colored pen assembly includes a cartridge seat, a nib seat, a plurality of colored cartridges, a plurality of relay cartridges, and a plurality of colored ink cotton tubes. The erasing pen assembly is arranged at the other end of the pen shaft opposite to the colored pen assembly. Only one end of the pen shaft may have at least two colors for providing the user to use different colors and the user is not necessary to use two nibs respectively arranged at two ends of the pen shaft by replacing in turn.