A thermochromic writing instrument including a writing body, storing a thermochromic ink therein, stored in a barrel; an operation body provided in the barrel to be operated to longitudinally move the writing body; a nib of the writing body configured to be capable of appearing from a front end of the writing instrument, wherein the writing instrument 1 further includes a friction unit, for rubbing handwriting in the thermochromic ink and capable of thermally changing the color of the handwriting by frictional heat generated at that time, and at least one clip body as the operation body, the friction unit 10 is provided at a rear end of the barrel, and the clip body is provided in an area other than the rear end of the barrel.

A compact writing instrument includes a barrel and a cap. A majority of a length of the barrel and a writing element carried thereby may be received by the cap when the barrel and the cap are placed in a stored position, providing a compact stored arrangement. The cap may be secured to the barrel in a writing arrangement that extends a length of the writing instrument significantly; for example, to a conventional writing instrument length. Engagement features of the cap and barrel may include steep threads that enable the cap to be assembled with and disassembled from the barrel with one rotation (360°) or less. A clip on the cap may include a closed end that defines a receptacle, with the closed end and receptacle extending beyond a corresponding end of the cap. In addition, the closed end and receptacle may extend partially over the corresponding end of the cap.

Example implementations relate to pen holding devices. In an example, a pen holding device can comprise a connector coupled to a receiver to couple the pen holding device to an electronic device, and the receiver including a magnet and a pen clip holder, the receiver to couple a pen via the magnet and the pen clip holder.

Example implementations relate to pen holding devices. In an example, a pen holding device can comprise a connector coupled to a receiver to couple the pen holding device to an electronic device, and the receiver including a magnet and a pen clip holder, the receiver to couple a pen via the magnet and the pen clip holder.

Provided is a writing tool comprising a clip composed of a wire rod, wherein the writing tool is capable of allowing a user to raise the clip without manipulation with both hands. The writing tool 1 comprises a tool body 7 extending in a longitudinal direction, and a clip member 8 composed of a wire rod and held by a lateral portion of the tool body 7, wherein a longitudinal intermediate portion 8B of the clip member 8 is held by the lateral portion of the tool body 7, and the clip member 8 is biased toward the tool body 7 so as to cause a longitudinal fore-end portion 8A of the clip member 8 to come into contact with the tool body 7, and wherein the writing tool is configured such that, when a back-end portion 8C of the clip member 8 is pushed toward the tool body 7, the fore-end portion 8A of the clip member 8 is swung to be spaced apart from the tool body 7.

Provided is a writing tool comprising a clip composed of a wire rod, wherein the writing tool is capable of allowing a user to raise the clip without manipulation with both hands. The writing tool 1 comprises a tool body 7 extending in a longitudinal direction, and a clip member 8 composed of a wire rod and held by a lateral portion of the tool body 7, wherein a longitudinal intermediate portion 8B of the clip member 8 is held by the lateral portion of the tool body 7, and the clip member 8 is biased toward the tool body 7 so as to cause a longitudinal fore-end portion 8A of the clip member 8 to come into contact with the tool body 7, and wherein the writing tool is configured such that, when a back-end portion 8C of the clip member 8 is pushed toward the tool body 7, the fore-end portion 8A of the clip member 8 is swung to be spaced apart from the tool body 7.

An extension for pencils with wearing leads, formed from a thin-walled hollow profile. The inner cross section is adapted to the shape of a pencil. One or more slots of appropriate length in the longitudinal direction at an end of the extension where the tapered end of the pencil is located and a slight linear reduction in the cross section approximately over the length of one or more slots. Longitudinal raised sections in the form of triangular, square, and/or semi-circular prisms, directed inwardly. The height of the raised sections may increase in the direction of insertion of the pencil and dig into the pencil slightly when the pencil is inserted. The height of the raised sections is reduced linearly to zero at the end of the extension where the pencil is inserted. Inwardly bent or protruding retaining springs arranged on the inner surface of the extension.

An extension for pencils with wearing leads, formed from a thin-walled hollow profile. The inner cross section is adapted to the shape of a pencil. One or more slots of appropriate length in the longitudinal direction at an end of the extension where the tapered end of the pencil is located and a slight linear reduction in the cross section approximately over the length of one or more slots. Longitudinal raised sections in the form of triangular, square, and/or semi-circular prisms, directed inwardly. The height of the raised sections may increase in the direction of insertion of the pencil and dig into the pencil slightly when the pencil is inserted. The height of the raised sections is reduced linearly to zero at the end of the extension where the pencil is inserted. Inwardly bent or protruding retaining springs arranged on the inner surface of the extension.

A multi-function writing instrument comprises a body extending in an axial direction and a radial direction, and having at least two writing elements arranged inside the body, each writing element comprising a writing head and a button, at least one button extending in the radial direction through a window and allowing the writing element to be moved between a retracted position in which the writing head is retracted into the body and a writing position in which the writing head projects from the body, and one of the writing elements being a leadholder system comprising a leadholder mechanism and a lead container, the button of the leadholder system comprising a lead-insertion channel extending in the axial direction.

A thermochromic writing instrument including a writing body, storing a thermochromic ink therein, stored in a barrel; an operation body provided in the barrel to be operated to longitudinally move the writing body; a nib of the writing body configured to be capable of appearing from a front end of the writing instrument, wherein the writing instrument 1 further includes a friction unit, for rubbing handwriting in the thermochromic ink and capable of thermally changing the color of the handwriting by frictional heat generated at that time, and at least one clip body as the operation body, the friction unit 10 is provided at a rear end of the barrel, and the clip body is provided in an area other than the rear end of the barrel.