Excel Rite Enterprise Co., Ltd.

Thomas Wang

Press type ballpoint pen

Ballpoint/ballbearing pen

A pen having a pen cap, and a penholder. The pen cap has a blocking cover with a loop cord for carrying and an opening at the other end. The penholder provides a center stick therein with a writing head of the center stick extending outwardly from a conical part at an end of the penholder. A magnetic ring is fixed in the pen cap. The conical part is made of magnet inducing material. The pen cap engages the penholder by way of the magnetic ring attracting the conical part when the conical part is inserted into the pen cap from the open end.

Hanging pen and cord thereof

Dual-use pen

A locating structure for a bounce device in a pen, having a hollow penholder, a locating device, and a center stick. The penholder has an end with a transverse guide groove and a locating hole below the guide groove. The locating hole has a size greater than the guide groove. The locating device has a slide block with a lateral locating hole, a pushbutton with a spring locating at a bottom and received in the locating hole, a slide block inserted into the penholder through the opening. The pushbutton has a stepped end shape providing a slide tenon and a stop ring corresponding to the guide groove and the locating hole respectively, and also providing a stop flange having a size greater than the locating hole. When the pushbutton is pushed to move the slide tenon downward along the guide groove, the spring urges the stop ring to fit with the locating hole. Thus, the slide block has the writing part extend outward from the penholder. When the slide tenon is pressed and the pushbutton moves inward in the locating hole, the writing part retreats in the penholder.

Locating structure for a bounce device in a pen

A rotary locator with differential position in a pen comprises an adapter head, a follower stem, and a cam. The adapter head is fixed at the top of the pen, an upper forked portion with a pivot device at the top thereof to form a groove seat, and a lower portion thereof has a central through hole. The follower stem is disposed in the central through hole and extends inward the pen. The cam is disposed in the groove seat, has two opposite flat planes on the contour thereof, an eccentric device between said two flat planes, and the eccentric device to align with the pivot device so as to rotate in the groove seat eccentrically. While the cam is turned, the follower stem displaces by way of a top thereof keeping contact with the contour of the cam. The follower stem can be located at one of two specific positions respectively because of the pivot device having different distances apart said two opposite flat planes respectively. Thus, the center stick under the follower stem may be displaced such that a spring therein can be compressed or stretches to allow a nib part of the pen extending outward from or moving backward into the pen.

Rotary locator with differential position in a pen

An improved writing instrument includes a main casing, a head portion, a relay rod, and a tail stopper. The head portion can be connected to the main casing and is centrally provided with a tip hole for passage of a reservoir tube. The tail stopper can be fitted to the relay rod. A core tube is disposed between the main casing opposite to a rear end of the head portion and the relay rod opposite to the tail stopper. The end of the core tube facing the head portion is provided with a core chamber, whereas the end facing the tail stopper is formed with a core tube hole. The section of the core tube facing the tail stopper has a smaller external diameter, with two or more ball holes symmetrically disposed therein. A core post is inserted in the core tube and has a post ring of a larger external diameter formed at a rear end thereof to serve as a limit. An intermediate portion of the core post is provided with a core groove corresponding to the positioning balls. A movable ring is slidably disposed between the relay rod and the core tube. When the head portion faces down, the core post and the movable ring slide downwardly, and the core post is restricted by the positioning balls and the movable ring. When the head portion faces up, the movable ring and the core post lower and retract.

Growing community of inventors

Taipei, Taiwan

Thomas Wang