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US 2004/0174620 A1Published application
Lens barrel
AssigneeFujinon Corporation
InventorsTeruaki Matsushima, Koji Ohgaki
Life of this patent
Estimating the term…
Abstract
To the female helicoidal screw of the lens barrel (outer barrel body), there is always imparted a biasing force from a plurality of looseness eliminating springs formed on the outside peripheral portion of the lens barrel (inner barrel body) which are integrally supported on the lens barrel (inner barrel body), by means of the male helicoidal screw, and the male helicoidal screw is slid while being thrusted against the female helicoidal screw.
Claims5
A lens barrel, comprising:
- an inner barrel body with a helicoidal screw formed;
- and
- an outer barrel body with a helicoidal screw formed, which is coupled with said inner barrel body by means of said helicoidal screw and a helicoidal screw formed on said inner barrel body,
- wherein, of the helicoidal screws formed on said outer barrel body and said inner barrel body, one helicoidal screw is formed on an elastic piece formed by slitting one portion of the barrel body, and said elastic piece is thrusted against the other helicoidal screw by a biasing force of said elastic piece.
1 more element
A lens barrel, comprising:
- an inner barrel body with a helicoidal screw formed on an outside surface;
- and
- an outer barrel body with a helicoidal screw formed on an inside surface, which accommodates said inner barrel body by causing a helicoidal screw formed on said inner barrel body to threadedly engage with a helicoidal screw formed on said inside surface,
- wherein, of said outer barrel body and said inner barrel body, the helicoidal screw formed on one barrel body is formed on an elastic piece formed by slitting one portion of said one barrel body in a peripheral direction, and said elastic piece is thrusted, by a biasing force of said elastic piece, against the helicoidal screw formed on the other barrel body.
1 more element
Dependencies are inferred from the claim text.