Photography – Camera detail – Film restraining means or pressure plate
Reexamination Certificate
1998-10-16
2001-06-19
Gray, David M. (Department: 2851)
Photography
Camera detail
Film restraining means or pressure plate
C396S535000
Reexamination Certificate
active
06247854
ABSTRACT:
BACKGROUND OF THE INVENTION
1. Field of the Invention
The present invention relates to a camera having a cartridge chamber into which a film cartridge is loaded and a spool chamber in which a spool is disposed to wind thereon a film of the film cartridge.
2. Description of Related Art
Conventional cameras, as disclosed in Japanese Laid-Open Patent Applications No. HEI 8-194252 and No. HEI 8-278543 and as shown in
FIG. 11
, each have a spool chamber (not shown), a cartridge chamber (not shown) and a connection part
101
a
provided for connection between the spool chamber and the cartridge chamber. In the structure of such conventional cameras, the connection part
101
a
is disposed on the side of a photo-taking optical system with respect to a film transport path in a photo-taking image frame, and an aperture part
101
b
is formed in the connection part
101
a.
However, due to the recent trend of reducing the size of cameras, a lens barrel has been becoming smaller and the length in height of cameras has been becoming shorter. Therefore, the vertical width of the connection part
101
a
has been becoming shorter. Further, in the case of cameras having a retractable-type lens barrel, the thickness of the connection part
101
a
in an optical axis direction has been becoming thinner for the purpose of minimizing the thickness of the camera with the lens barrel retracted into its stowed position. Hence, the strength of the connection part
101
a
in the camera body decreases accordingly. Therefore, the camera body having such weak connection part
101
a
tends to be distorted by an external force on a front or rear cover of the camera. Such distortion of the camera body then tends to bring about various problems, such as a focus deviation of the photo-taking optical system, inaccuracy of film transportation, etc.
BRIEF SUMMARY OF THE INVENTION
In accordance with one aspect of the invention, there is provided a camera, which comprises a body member having a first portion, a second portion and a third portion which are integrally formed, the first portion being provided for forming at least a part of a cartridge chamber into which a film cartridge is loaded, the second portion being provided for forming at least a part of a spool chamber in which a spool is disposed to wind thereon a film of the film cartridge, the third portion being provided for connection between the first portion and the second portion and being disposed behind the film in a photo-taking optical axis direction to overlap the film in the photo-taking optical axis direction while the film is transported. Accordingly, the third portion, which serves as a connection part, is arranged to have a large width in a direction perpendicular to the direction of film transport and along the surface of the film, so that the strength of the connection part can be increased.
The above and other aspects and features of the invention will become apparent from the following detailed description of preferred embodiments thereof taken in conjunction with the accompanying drawings.
REFERENCES:
patent: 4855774 (1989-08-01), Ohmura et al.
patent: 5517269 (1996-05-01), Boyd et al.
patent: 5576782 (1996-11-01), Kameyama
patent: 5581321 (1996-12-01), Boyd
patent: 5805935 (1998-09-01), Yokajty et al.
patent: 5815740 (1998-09-01), Wagner
patent: 5828919 (1998-10-01), Furuya et al.
patent: 5842071 (1998-11-01), Stanchus et al.
patent: 5897234 (1999-04-01), Tanaka
patent: 5937209 (1999-08-01), Person et al.
patent: 5970257 (1999-10-01), Watkins et al.
Canon Kabushiki Kaisha
Gray David M.
Robin Blecker & Daley
LandOfFree
Camera having distortion-resistant body member does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Camera having distortion-resistant body member, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Camera having distortion-resistant body member will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2533231