Side-knock type mechanical pencil
US6065889A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Jul 29, 1997 |
| Grant date | May 23, 2000 |
| Priority date | — |
| Expiry date | Jul 29, 2017 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB43K24/082
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
A side-knock type mechanical pencil comprises a barrel having a front end, a rear end a lead feeding mechanism disposed in the barrel for axial movement within the barrel to feed a pencil lead toward the front end of the barrel. A knock button is disposed in a side portion of the barrel so that the knock button can be pressed inward in a radial direction of the barrel to move the lead feeding mechanism axially within the barrel to thereby feed the pencil lead toward the front end of the barrel. A lead passageway is disposed in the barrel for passing therethrough the pencil lead in a direction toward the front end of the barrel. The lead passageway has a diameter at least twice as large as a diameter of the pencil lead. At least one lead receiving member is disposed in the barrel between the lead passageway and the knock button for receiving the pencil lead. The lead receiving member has a lead insertion hole for permitting the pencil lead to pass therethrough and a head portion having an external diameter approximately equal to an internal diameter of the barrel.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.