Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
248 words
A slide-type take-up mechanism for a camera comprising: a sliding operating bar which is externally operable of said camera, a rack means on said bar, a first shaft having a pinion mounted thereon engaged with said rack means for rotation upon sliding of said operating bar, arm means secured to said first shaft, a locking pawl pivotably mounted on said arm means and having a projection thereon, a take-up shaft, a disk having a step cam on the periphery thereof, fixed coaxially on said take-up shaft for rotation, means biasing said pawl against said disk for engagement with said step cam, a first pivot means, a shutter lever pivotably mounted on said first pivot means for setting a shutter, said lever being positioned for rotation by engagement with said operating bar, second pivot means, a control lever pivotably mounted on said second pivot means, said control lever having a projection at one end thereof for thereof for engagement with said projection of said locking pawl, means biasing said lever to rotate in the clockwise direction, said control lever being positioned so that said projection thereof is disposed in the trajectory of said projection of said locking pawl when said shutter lever is in a shutter set position and is disposed out of said trajectory when said shutter lever is in a shutter release position whereby the take-up of film upon sliding of said operating bar will occur only when said shutter lever is in the shutter release state.
Claim 2
Dependent Claim
248 words
A slide-type take-up mechanism for a camera comprising: a sliding operating bar which is externally operable of said camera, a rack means on said bar, a first shaft having a pinion mounted thereon engaged with said rack means for rotation upon sliding of said operating bar, arm means secured to said first shaft, a locking pawl pivotably mounted on said arm means and having a projection thereon, a take-up shaft, a disk having a step cam on the periphery thereof, fixed coaxially on said take-up shaft for rotation, means biasing said pawl against said disk for engagement with said step cam, a first pivot means, a shutter lever pivotably mounted on said first pivot means for setting a shutter, said lever being positioned for rotation by engagement with said operating bar, second pivot means, a control lever pivotably mounted on said second pivot means, said control lever having a projection at one end thereof for thereof for engagement with said projection of said locking pawl, means biasing said lever to rotate in the clockwise direction, said control lever being positioned so that said projection thereof is disposed in the trajectory of said projection of said locking pawl when said shutter lever is in a shutter set position and is disposed out of said trajectory when said shutter lever is in a shutter release position whereby the take-up of film upon sliding of said operating bar will occur only when said shutter lever is in the shutter release state.
Claim 3
Dependent Claim
49 words
A slide-type film take-up mechanism as set forth in claim 1 further comprising sprocket means for engagement with the film in the camera to advance the film and gear means connecting said sprocket means to take-up shaft whereby the sprocket means is rotated upon rotation of said take-up shaft.