191results about "Ball-point pens" patented technology

To provide a pen structure that allows for easy switching of colors and functions, and that is easy to write with without interference during writing. [Solution] The pen tip support structure for a multi-core writing instrument comprises a pen shaft held by hand, three core holes 21a to 21c extending inside the pen shaft along the axis of the pen shaft, the three core holes 21a to 21c being oriented to open outward from the direction along the axis as they move from the base end to the tip end of the pen shaft, and three core-shaped pen tip members 11a to 11c inserted into the three core holes 21a to 21c respectively, and a wedge-shaped residual region is defined between the three core holes 21a to 21c inside the tip of the pen shaft 10.

A writing instrument (10) comprises: -a hollow body (12) having a first end (12a) and a second opposite end (12b) along a longitudinal axis (X); -a deformable tank (20) inside the hollow body and containing ink; -a writing tip (14) disposed at the first end (12a) of the hollow body and in fluid communication with the deformable tank (20); -a deformation device (22) configured to squeeze the deformable tank (20) along the longitudinal axis (X) so as to move forward towards the writing tip (14) the ink contained in the deformable tank (20).

The application provides a connecting structure and a pen, and relates to the technical field of pens. The connecting structure comprises a first connecting part and a second connecting part connected with each other. The second connecting part comprises a receiving groove, and the first connecting part is arranged in the receiving groove. The first connecting part comprises a plurality of first connecting arms capable of elastically deforming. The plurality of first connecting arms are arranged to form a slot. The first connecting part is connected with a first structural member outside the connecting structure through the slot, and each first connecting arm is clamped to the first structural member. The outer periphery of the second connecting part is connected with a second structural member outside the connecting structure. In the connecting structure provided by the application, the second connecting part is connected with the second structural member alone, and each first connecting arm does not need to be connected with the second structural member. The first connecting arms can avoid being limited by the second structural member, have a larger deformation space, can better wrap the first structural member, i.e. a pen core, and can reduce the size precision requirements of the connecting structure and the pen core, and are more beneficial to production.

The utility model discloses a one-key cover opening type convenient gel pen which comprises a pen tube, a clamping groove is formed in the lower end of the pen tube, a receding hole is formed in the side wall of the pen tube and communicated with the clamping groove, and a pen cap is buckled to the clamping groove in the lower end of the pen tube. And the lower pressing rod is arranged in the receding hole, and the lower pressing rod is matched with the pen cap. The gel pen has the advantages that uncapping and uncovering operation is simple and convenient, and one-key uncovering is guaranteed.