Watch movement with off-center center wheel and pinion |
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| 申请号 | US3779002D | 申请日 | 1973-01-29 | 公开(公告)号 | US3779002A | 公开(公告)日 | 1973-12-18 |
| 申请人 | SCHILD SA A; | 发明人 | ZAUGG R; | ||||
| 摘要 | Watch movement with an off-center center wheel driving a third wheel with a friction-coupled auxiliary pinion driving the minute hand which permits setting of the hand while the third wheel is continuously driven, a fourth wheel extending at the same level as said off-center center wheel, resulting in a thinner watch movement structure. | ||||||
| 权利要求 | 1. In a watch movement comprising a train-wheel bridge, a plate, and, between said train-wheel bridge and said plate, a barrel, an off-center center wheel and pinion, a third wheel and pinion, and a fourth wheel and pinion, the arrangement comprising said fourth wheel and pinion being situated at the center of the movement, a centered minute wheel and pinion lodged on the outer face of the plate at the center of the movement coaxially to said fourth wheel and pinion, an auxiliary pinion in meshing engagement with the wheel toothing of said minute wheel and pinion, said auxiliary pinion being mounted on the shaft of said third wheel and pinion, a friction coupling between said auxiliary pinion and said shaft, said third wheel pinion meshing with said off-center center wheel, a recess in the inner face of said train-wheel bridge, said third wheel and said fourth pinion being lodged in said recess, said off-center center wheel extending between said barrel and said train-wheel bridge, and said fourth wheel extending at the same level as said off-center center wheel. 2. In the watch movement of claim 1, said third wheel and pinion comprising a pinion integral with said shaft, said integral pinion extending between said third wheel and said auxiliary pinion, adjacent to said third wheel. 3. In the watch movement of claim 1, further comprising an automatic winding device, said device comprising a winding weight rotatably mounted on a fixed stud, said stud being integral with a supporting plate having a thin portion and a thick portion, said stud being made integral with said thin portion, said train-wheel bridge having a hooking portion (28) around said recess, and said thick portion being fixedly connected to the outer face of said train-wheel bridge on the side of said hooking portion. 4. In the movement of claim 3, said supporting plate having a frame element of said automatic winding device secured thereto, said element being secured to said supporting plate by at least one screw, said screw having a head, and said head being lodged in an aperture (34) provided through said trainwheel bridge. |
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