Wan Nian Bi

Abstract

This product is a fountain pen with a variable length barrel. The barrel consists of four parts, and the length of the barrel can be changed by changing the number of intermediate parts. The "Reference Plan View Showing the Disassembled State of the Pen Barrel" shows the disassembled state of the fountain pen barrel of this product. The "Reference Plan View Showing the First Usage State" shows the state in which the first intermediate part and the second intermediate part are placed between the tip part and the end part of the barrel. The "Reference Plan View Showing the Second Usage State" shows the state in which only the first intermediate part is placed between the tip part and the end part of the barrel. The "Reference Plan View Showing the Third Usage State" shows the state in which the tip part and the end part of the barrel are directly connected.

Images