Lead cartridge opening and closing unit

Details Lead cartridge opening and closing unit Lead cartridge opening and closing unit

1987-06-12

1989-06-06

Apley, Richard J.

Coating implements with material supply

Solid material for rubbing contact or support therefor

Including means to advance material

401 85, 401 89, B43K 2100

Patent

active

048367036

ABSTRACT:
A lead cartridge opening and closing unit wherein outward engaging piece portions are provided on a chuck type opening and closing mechanism which is divided into sections in the diametrical direction and has inward elastic force and which is further disposed on the lead cartridge; the outward engaging piece portions moving inwardly against the inward elastic force along the diametrical direction thereof thereby to open lead conducting holes in case of forcible insertion into and engagement with a lead guide, while the outward engaging piece portions being restored by means of the inward elastic force to move outwardly along the diametrical direction thereof thereby to close the lead conducting holes in case of release for the forcible insertion and engagement; whereby when the outward engaging piece portions of the chuck type opening and closing mechanism are forcibly fitted in the lead guide, the outward engaging piece portions move inwardly along the diametrical direction thereof to be resiliently fitted to and engaged with the lead guide so that the lead conducting holes are opened, and on the other hand when the outward engaging piece portions are drawn out from the lead guide, these outward engaging piece portions are restored outwardly by means of the inward elastic force along the diametrical direction thereof so that the lead conducting holes are closed.

REFERENCES:
patent: 1889963 (1932-12-01), Cooney et al.
patent: 3854625 (1974-12-01), Kuebler
patent: 4659242 (1987-04-01), Katz

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