Coating implements with material supply – Plural tools including projectable and retractable tool
Patent
1992-11-06
1994-04-26
Bratlie, Steven A.
Coating implements with material supply
Plural tools including projectable and retractable tool
401 32, 401 33, 401 52, 15429, B43K 2902, B43K 2414
Patent
active
053060857
ABSTRACT:
A multiplex writing implement comprises a plurality of writing elements, at least one which is a mechanical pencil writing element, which can be selectively projected and retracted from the front opening of the front barrel section by rotating a middle barrel section relative to the front barrel section. An eraser can be extended by rotation of a cap relative to the middle barrel section. The implement includes the following resin molded components, namely, a guide cylinder, front barrel section, cylindrical cam, middle barrel section, cap, and an eraser guide sleeve. The front half portion of the guide cylinder is fixed to the front barrel section and is attached rotatably in its rear half portion to the middle barrel section. The guide cylinder contains a plurality of writing elements fit in respective grooves and movable axially. The cylindrical cam is attached rotatably into the rear end of the guide cylinder, and is disposed in the middle barrel section, locked from relative turning. At the rear end of the cylindrical cam, projecting from the middle barrel section, the eraser guide sleeve is integrally joined. The cap, with a spiral slot formed thereinside, is rotatably attached. Inside the cap is an eraser holder, with an eraser that is locked against rotation and has a projection engaging the spiral slot.
REFERENCES:
patent: 1104514 (1914-07-01), Kilstrom
patent: 1662474 (1928-03-01), Randall
patent: 4202641 (1980-05-01), Tomura
patent: 4227822 (1980-10-01), Kokubu
patent: 4283151 (1981-08-01), Sekiguchi
patent: 4290707 (1981-09-01), Ariga
patent: 4904101 (1990-02-01), Petterson
patent: 5056947 (1991-10-01), Kubota et al.
patent: 5062727 (1991-11-01), Kageyama et al.
Bratlie Steven A.
Mitsubishi Pencil Kabushiki Kaisha
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