摘要:
A camera comprising a particular device (such as an electronic flash unit) that requires electrical energy to operate, a power switch capable of being changed from a normal state to a working state in order to provide electrical power to the device and biased to return to the normal state, and a protective cover (such as a lens cover) that changes the power switch from the normal state to the working state as the protective cover is moved from being closed to being open, is characterized in that the protective cover is supported for manual movement when open, without being moved to close, to change the power switch from the normal state to the working state when the power switch has returned to the normal state.
摘要:
A camera comprises manually rotatable film winding means, and a uni-directional clutch coupled to the film winding means to permit film winding rotation of the film winding means and to prevent reverse rotation of the film winding means. The film winding means includes a rotatable winder wheel having a toothed periphery. The uni-directional clutch includes a rotatable idler wheel having a toothed periphery engaging the toothed periphery of the winding wheel and provided with less teeth than the toothed periphery of the winding wheel, and a coil spring coiled tightly about a shank of the idler wheel and having an end portion secured with respect to the shank. The coil spring tightens on the shank to prevent the idler wheel and the winding wheel from being engagingly rotated when reverse rotation of the film winding means is attempted and relaxes on the shank to permit the idler wheel and the winding wheel to be engagingly rotated when film winding rotation of the film winding means is initiated.
摘要:
A one-time-use camera comprising a plug which must be separated from a chamber to permit removal of an article from the chamber, and a breakable retainer for the plug which is broken to allow the plug to be separated from the chamber, is characterized in that the plug and the retainer have respective engaged portions arranged relative to one another to make the plug be separated from the chamber as the retainer is broken.
摘要:
A one-time-use camera comprises a film cartridge and a filmstrip, a lighttight camera body having an interior chamber for the film cartridge and an exterior cover portion for light-tightly sealing the chamber that can be separated from another exterior (remaining) portion to open the chamber in order to remove the film cartridge, and matching respective indicia on the outside of the camera body and on the film cartridge and/or the filmstrip. The indicia on the outside of the camera body is positioned partially on the exterior cover portion and partially on the other exterior portion to be divided in order to be visually obliterated when the exterior cover portion is separated from the other exterior portion to open the chamber. Thus, the one-time camera cannot practically be reused without removing or covering the part of the indicia on the other exterior (remaining) portion of the camera body.
摘要:
A one-time-use camera comprising a film winder wheel rotatable in a film winding direction and a rear cover part with an integral door portion that is to be opened to remove a film cartridge from a cartridge chamber, an integral anti-backup pawl for engaging the film winder wheel to prevent rotation of the film winder wheel in a reverse direction opposite to the film winding direction, and a weakened longitudinal section between the door portion and another portion of the rear cover part that fractures when the door portion is opened, is characterized in that the anti-backup pawl and the door portion are connected to cause the anti-backup pawl to be moved with the door portion when the door portion is opened, and the weakened longitudinal section extends between the anti-backup pawl and the other portion of the rear cover part to fracture between the anti-backup pawl and the other portion, in addition to fracturing between the door portion and the other portion, when the door portion is opened, whereby the anti-backup pawl will be renedered ineffective to prevent reverse rotation of the film winder wheel.
摘要:
A single-use camera comprises an exterior decorative cardboard casing having an open end, and a plastic light-tight camera housing arranged partly inside the exterior casing and having an end portion with a film cartridge receiving chamber located outside the exterior casing. According to the invention, the end portion of the camera housing includes chamber covering means supported for opening movement to undercover the cartridge receiving chamber without being obstructed by the exterior casing, whereby a film cartridge may be removed from the cartridge receiving chamber without first tearing the exterior casing off the camera housing.
摘要:
A shutter mechanism for a camera comprises a support including an integrally formed post and a retainer defining a path; a HEL with a projecting finger, the finger being movable along the path; and a shutter blade pivotally mounted on the post. The shutter blade has a lever portion and a masking portion and is movable into an exposure position by the finger. According to one embodiment the support is a camera frame. According to another embodiment the support is a mechanical plate.
摘要:
A camera comprising a film frame counter rotatable at a central hub to successive numbered settings, and a metering cam rotatable in response to film advancement and having at least one tooth for intermittently engaging the frame counter to rotate the frame counter to its next numbered setting when the metering cam is rotated, characterized in that a cantilevered flexible beam has two ends, and is supported at one end to permit the beam to be bent at the other end for the beam to forcibly press between the two ends against the central hub of the frame counter to prevent an unintended rotation of the frame counter, and the metering cam has a cam lobe arranged to bend the beam at its other end for the beam to forcibly press between its two ends against the frame counter when the tooth is not engaged with the frame counter.
摘要:
A camera comprising a film frame counter rotatable to successive numbered settings, and a counter actuator movable in engagement with the frame counter to rotate the frame counter to its next numbered setting, is characterized in that a bearing support for the frame counter supports the frame counter, first to permit the frame counter to be axially shifted to become separated from the counter actuator, and then to permit the frame counter to be rotated freely to reset the frame counter to an initial setting.