This application is related to a fiber-bundled part for writing instruments having excellent strength and durability, as well as a pen tip and a writing instrument using the fiber-bundled part, which can be suitably used for pen tips, ink feed cores and relay cores of writing instruments such as marking pens and felt-tip pens. The fiber-bundled part for writing instruments of the present disclosure is used for the ink feed core leading to the pen tip or a writing pen core, and comprises a multifilament of long fibers having different melting points, and the multifilament at least contain crimped fibers.

A feeding pencil includes a pipe member, a leading tube, a tubular main body, a movable body, and a holding member. The pipe member is disposed inside the leading tube and loads a drawing material. The movable body extends in an axial direction includes a male screw formed across an entire outer periphery thereof in the axial direction. The holding member holds the movable body. The pipe member includes a female screw on an inner surface thereof. The female screw screws with the male screw. A relative rotation between the leading tube and the main body relatively rotates the pipe member and the holding member and acts a screwing action between the male screw and the female screw. The screwing action moves the movable body forward to extrude the drawing material from the pipe member.

A feeding pencil includes a main body, a leading tube, a middle tube, and a ratchet mechanism. The middle tube is engaged to the leading tube to be relatively rotatable. A relative rotation between the leading tube and the main body in one direction moves a drawing material forward. The ratchet mechanism allows the relative rotation between the leading tube and the main body in the one direction, and regulates the relative rotation in another direction. The ratchet mechanism includes an elastic projecting part and a concave-convex part. The concave-convex part engages with the elastic projecting part to be movable in an axial direction and rotatable. A protrusion disposed at a center tube removably engages with an annular convex part disposed at an outer surface of the leading tube in the axial direction.

A writing instrument such as a pen or stylus, that is capable of writing contemporaneously in different physical characteristics, such as color and visual appearancethat is, without the need to switch out different cartridges to write in different characteristics; as well as to an ink device for such a writing instrument, such as a multi-cartridge tip having multiple nibs, where the multiple nibs can be used to write on a substrate contemporaneously. A writing instrument herein can be configured to write at a substantially perpendicular angle to the substrate, or slightly angled for ease of a user's hand position. A writing instrument that encompasses both electronic and manual (ink) features is also contemplated.

A writing instrument such as a pen or stylus, that is capable of writing contemporaneously in different physical characteristics, such as color and visual appearancethat is, without the need to switch out different cartridges to write in different characteristics; as well as to an ink device for such a writing instrument, such as a multi-cartridge tip having multiple nibs, where the multiple nibs can be used to write on a substrate contemporaneously. A writing instrument herein can be configured to write at a substantially perpendicular angle to the substrate, or slightly angled for ease of a user's hand position. A writing instrument that encompasses both electronic and manual (ink) features is also contemplated.

A writing instrument such as a pen or stylus, that is capable of writing contemporaneously in different physical characteristics, such as color and visual appearancethat is, without the need to switch out different cartridges to write in different characteristics; as well as to an ink device for such a writing instrument, such as a multi-cartridge tip having multiple nibs, where the multiple nibs can be used to write on a substrate contemporaneously. A writing instrument herein can be configured to write at a substantially perpendicular angle to the substrate, or slightly angled for ease of a user's hand position. A writing instrument that encompasses both electronic and manual (ink) features is also contemplated.

A writing instrument such as a pen or stylus, that is capable of writing contemporaneously in different physical characteristics, such as color and visual appearancethat is, without the need to switch out different cartridges to write in different characteristics; as well as to an ink device for such a writing instrument, such as a multi-cartridge tip having multiple nibs, where the multiple nibs can be used to write on a substrate contemporaneously. A writing instrument herein can be configured to write at a substantially perpendicular angle to the substrate, or slightly angled for ease of a user's hand position. A writing instrument that encompasses both electronic and manual (ink) features is also contemplated.

The present technology relates to a writing instrument such as a pen or stylus, that is capable of writing contemporaneously in different characteristics, such as color and visual appearancethat is, without the need to switch out different cartridges to write in different characteristics; as well as to a writing instrument having multiple nibs, where the multiple nibs can be used to write on a substrate contemporaneously. A writing instrument herein can be configured to write at a substantially perpendicular angle to the substrate, or slightly angled for ease of a user's hand position. A writing instrument that encompasses both electronic and manual (ink) features is also contemplated.