Writing instrument with cushioning device
US8550735B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jul 7, 2006 |
| Grant date | Oct 8, 2013 |
| Priority date | — |
| Expiry date | Sep 29, 2028 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K17/005
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A retractable writing instrument that includes a barrel, a writing tip, an actuating mechanism that includes a plurality of parts for extending and retracting the writing tip upon actuation of the actuation member, and a cushioning device enabling a retraction of the writing tip when an excessive pressure is exerted by a user. The cushioning device includes a spring member elastically deformable, which is integrally formed with a movable part of the actuating mechanism, the part being movable relative to the barrel. The spring member has a free end abutting the barrel toward its rear end and has a through hole. A stem extends within the spring member's hole and connects the actuating member to the actuating mechanism.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.