| 摘要 |
An automatically-adjusting seat mechanism is disclosed for automatically adjusting the chamber length in a writing instrument to accommodate refills of different lengths. The mechanism comprises a first element and a second element operably engaged with the first element. When contacted by a refill, the second element automatically moves from a first position associated with a first chamber length to a second position associated with a second chamber length. The mechanism may have a biasing member to releasably hold the second element in the first position. Other embodiments include a third element and a third chamber length. A method of using the automatically-adjusting refill seat mechanism is also disclosed. |
