Lens-fitted photo film unit and cassette for photo film
AssigneeFuji Photo Film Co., Ltd.
InventorsKatsuyoshi Asakura, Yasuhiro Yamashina
Life of this patent
Estimating the term…
Abstract
A lens-fitted photo film unit contains a photo film cassette, which includes a spool for winding the photo film in a roll form thereabout. A body tube contains the photo film and the spool in a rotatable manner, has a first end with a first end opening, and a second end with a second end opening. A first end cap closes the first end opening, and has an outer diameter d1. A second end cap closes the second end opening, has an outer diameter d2, and satisfies a condition of: d2<d1. To contain the cassette, a cassette holder chamber in the lens-fitted photo film unit has a size corresponding to that of the cassette.
Claims25
A lens-fitted photo film unit, having a photo film holder chamber and a cassette holder chamber, said photo film holder chamber being loaded with a roll of unexposed photo film, and said cassette holder chamber being loaded with a cassette for winding and containing said photo film after being exposed, said lens-fitted photo film unit comprising:
- said cassette comprising a cassette shell and a spool rotatably mounted therein, the cassette shell including first and second end portions, and a middle portion disposed between said first and second end portions, said first end portion having an outer diameter d1, said second end portion having an outer diameter d2, wherein said outer diameter d1 is in a standardized range according to 135 type of a photo film cassette;
- said cassette holder chamber including first and second chamber end regions, and a chamber middle region, said first and second chamber end regions receiving respectively said first and second end portions, said chamber middle region receiving said middle portion, said first chamber end region having an inner diameter D1, said second chamber end region having an inner diameter D2;
- wherein said cassette and said cassette holder chamber satisfy a condition of:
- d2≦D2<d1≦D1.
A lens-fitted photo film unit having a photo film holder chamber and a cassette holder chamber, said photo film holder chamber being loaded with a roll of unexposed photo film, and said cassette holder chamber being loaded with a cassette for winding and containing said photo film after being exposed, said lens-fitted photo film unit comprising:
- said cassette including first and second end portions, and a middle portion disposed between said first and second end portions, said first end portion having an outer diameter d1, said second end portion having an outer diameter d2, wherein said outer diameter d1 is in a standardized range according to 135 type of a photo film cassette;
- said cassette holder chamber including first and second chamber end regions, and a chamber middle region, said first and second chamber end regions receiving respectively said first and second end portions, said chamber middle region receiving said middle portion, said first chamber end region having an inner diameter D1, said second chamber end region having an inner diameter D2;
- wherein said cassette and said cassette holder chamber satisfy a condition of:
- d2≦D2<d1≦D1;
- wherein said middle portion has an outer diameter d3, said chamber middle region has an inner diameter D3;
- wherein said cassette and said cassette holder chamber satisfy conditions of:
- d2≦d3<d1,
- D2≦D3<D1,
- d2≦D2 and d3≦D3 and d1≦D1.
A lens-fitted photo film unit having a photo film holder chamber and a cassette holder chamber, said photo film holder chamber being loaded with a roll of unexposed photo film, and said cassette holder chamber being loaded with a cassette for winding and containing said photo film after being exposed, said lens-fitted photo film unit comprising:
- said cassette including first and second end portions, and a middle portion disposed between said first and second end portions, said first end portion having an outer diameter d1, said second end portion having an outer diameter d2, wherein said outer diameter d1 is in a standardized range according to 135 type of a photo film cassette;
- said cassette holder chamber including first and second chamber end regions, and a chamber middle region, said first and second chamber end regions receiving respectively said first and second end portions, said chamber middle region receiving said middle portion, said first chamber end region having an inner diameter D1, said second chamber end region having an inner diameter D2;
- wherein said cassette and said cassette holder chamber satisfy a condition of:
- d2≦D2<d1≦D1;
- wherein said second chamber end region is positioned internally from said first chamber end region with respect to said cassette holder chamber.
A lens-fitted photo film unit comprising:
- a photo film holder chamber for containing a roll of unexposed photo film;
- a cassette holder chamber for containing a cassette adapted to winding and containing an exposed portion of said photo film therein;
- wherein one end of said cassette holder chamber has an inner diameter in a range of 24.90–25.10 mm, and an opposite end of the cassette holder chamber has an inner diameter of at least 25.3 mm.
A lens-fitted photo film unit comprising:
- a photo film holder chamber for containing a roll of unexposed photo film;
- a cassette holder chamber for containing a cassette adapted to winding and containing an exposed portion of said photo film therein;
- wherein one end of said cassette holder chamber has an inner diameter in a range of 24.60–24.90 mm, and an opposite end of the cassette holder chamber has an inner diameter of at least 25.3 mm.
A cassette for containing photo film, comprising:
- a cassette shell, constituted by first and second end portions, and a middle portion disposed between said first and second end portions, and having a passageway for passage of said photo film;
- a spool, having one spool end protruded through said first end portion, contained in said cassette shell in a rotatable manner, for winding said photo film;
- a pair of two spool flanges, formed with said spool, for regulating a position of said photo film in a width direction thereof;
- said first end portion having a first outer diameter in a range of 24.60–24.90 mm, said second end portion having a second outer diameter in a standardized range according to 135 type of a photo film cassette.
A cassette for containing photo film, comprising:
- a shell-shaped body tube having first and second shell ends, and a middle portion disposed between said first and second shell ends, wherein said second shell end has a stepped shape, and has a smaller diameter than said first shell end;
- a first end cap, secured to said body tube, fitted on surfaces of said first shell end;
- a second end cap, secured to said body tube, fitted on surfaces of said second shell end, said second end cap including a peripheral portion, disposed about said second shell end, and having an outer diameter smaller than an outer diameter of said middle portion;
- first and second axial holes formed respectively in said first and second end caps;
- and
- a spool, inserted in said first and second axial holes in a rotatable manner, for winding said photo film, said spool having one spool end protruding through said second shell end.
A cassette for containing photo film, comprising:
- a cassette shell in a cup form, having first and second shell ends, and including an opening formed in said first shell end, and an end panel constituting said second shell end;
- an end cap, secured to said cassette shell, fitted on surfaces of said first shell end;
- a first axial hole formed in said end panel;
- a second axial hole, formed in said end cap;
- a spool, inserted in said first and second axial holes in a rotatable manner, for winding said photo film, said spool having one spool end protruding through a selected one of said first and second axial holes.
Dependencies are inferred from the claim text.