A writing instrument includes a body, a nosecone, and an adaptor each being of generally hollow tubular shape. The body, the nosecone, and the adaptor each have a first end and a second end. The first end of the adaptor is configured to slidably couple to the nosecone second end. The second end of the adaptor is coupled to the first end of the body. The writing instrument includes a writing element with a mounting end and a writing end where the mounting end is removably coupled to the second end of the body. The writing instrument includes a locking mechanism configured to selectively lock the nosecone in a storage position or a writing position. In the storage position, the nosecone extends and covers the writing end. In the writing position, the nosecone retracts and the writing end of the writing element extends beyond the nosecone.

A hand tool includes an outer barrel, an inner barrel housed in the outer barrel, and a rear barrel assembled to the outer barrel and the inner barrel. One of the outer barrel and the inner barrel includes a cam follower protruding in a radial direction of the hand tool, the other of the outer barrel and the inner barrel includes a cam groove engaging with the cam follower, and the cam follower is supported to be movable in a radial direction.

A position indicator that enables a component having a writing function to be easily replaced. The component having the writing function can be inserted/extracted into/from a first housing through a second opening of the first housing. When the second opening of the first housing and a third opening of a second housing are engaged in a state in which the component having the writing function has been inserted into the first housing, a resonant circuit is formed that includes a circuit in which a coil inside the first housing and a writing pressure detector inside the second housing are electrically connected to each other.

A pen includes a pen tube, a connection structure, a cap and an elastic unit. The pen tube includes a pen tube case and a thread portion provided at the pen tube case. The connection structure includes a main body, a corresponding thread portion and an elastic unit fastener. The corresponding thread fastener is located at the main body and is for joining with the thread portion. The elastic unit fastener is provided at the main body. The cap includes a cap case and an elastic unit corresponding fastener provided at the cap case. The two ends of the elastic unit are respectively fastened to the elastic unit fastener and the elastic unit corresponding fastener.

Thermoplastic molding composition comprising (A) 40 to 80 wt.-% SAN copolymer (S/AN-ratio 78:22 to 65:35, Mw 80,000 to 250,000 g/mol); (B) 20 to 60 wt.-% SBC block copolymer (monovinylarene 61 to 64 wt.-%) comprising conjugated diene/monovinylarene tapered polymer blocks; and (C) 0 to 5 wt.-% additives and/or processing aids (C); exhibiting ultra-high melt flow with good mechanical, thermal and optical properties, a process for its preparation and its use for the production of bulky and/or thin walled articles.

An adjustment pen, including a pen body, the pen body including a pen tip, wherein the adjustment pen further includes a light emitting unit, a control switch and a power supply module which are carried by the pen body, the light emitting unit is connected with the control switch and the power supply module to form an illumination circuit, the control switch is configured to control ON and OFF of the illumination circuit, and the light emitting unit is configured to emit a light beam toward the pen tip.

A writing instrument has a gripping tube rotatably fitted on a front portion of a barrel. At the front portion of the barrel, plural identifying marks having different identification characteristics, such as color, are disposed in parallel in a circumferential direction of the barrel. A window portion is provided in the gripping tube through which is visible an identifying mark selected by rotating the gripping tube relative to the barrel. When the user rotates the gripping tube to the position where the chosen color is visible through the window portion, a locking pawl on the barrel engages with a locking groove at the rear end of the gripping tube to lock the gripping tube in this position. Once locked in position, the gripping tube cannot accidentally rotate thereby preventing a change of colors appearing at the window portion even if the writing instrument is subjected to shock or vibration.

A writing instrument with a cap that lockingly engages a body portion via a locking assembly is presented herein. The locking assembly includes a pair of locking tabs on the cap that correspondingly fit within locking channels on the body of the writing instrument. With the tabs positioned within the locking channels, the cap is twisted or rotated such that the locking tabs slide past a node within the channels and restricts removal of the cap from the body portion.

The present invention discloses a using method of a rewritable board. It comprises applying or removing a fluid on the rewritable board for writing repeatedly, wherein the rewritable board is an aluminum based material sequentially having a porous aluminum oxide layer and a metal layer thereon, and wherein the porous aluminum oxide layer has a porosity ranging from 10% to 80%.

A retractable pen with a push button includes a top plug, a barrel and a bottom holder. The top plug is partially insertable into the barrel and is axially movable with respect to the barrel, and the bottom holder is in threaded connection with the barrel. A refill is arranged in the top plug, the barrel and the bottom holder. A reset spring is arranged between the refill and the bottom holder. An end of the push button located in the barrel is provided with at least one clamping member configured to clamp the barrel and a push member configured to drive the top plug to axially slide with respect to the barrel. At least one limit piece is fixedly provided on an inner wall of the barrel to hold the clamping member.