摘要:
A single direction coupling device, including a first transmission member (10) fitted with a first saw-like contrate toothing (13), mobile in rotation about an axis XX and axially positioned by an elastic member (11), and a second transmission member (14) fitted with a second saw-like toothing (17), mobile in rotation about an axis YY, meshed with the first transmission member (10), characterized in that the XX axis is perpendicular to the YY axis.
摘要:
The invention is a timepiece calendar mechanism for displaying the date and the day of the week, including a date indicator in the form of an internally toothed crown. The date indicator is driven by a first drive wheel having an external toothing so as to be able to be driven about an axis of rotation by a wheel set secured to an hour wheel of the timepiece. The toothing includes a prominent tooth, longer than the others, which abuts against a tooth of the inner toothing of the date indicator to move it forward one day in a time interval located around a determined time of the day. The mechanism also includes a day of the week indicator that moves forward one day during the time interval.
摘要:
The invention concerns the structure of a timepiece movement, more particularly the structure of the hour wheel (1), the inside of whose pipe (4) includes an annular bulge (6) co-operating with an annular groove (22) arranged on the outer wall of the pipe (21) of the cannon-pinion (7). Thus, the hour wheel is snap-fitted onto the movement, without it being necessary to provide an additional part for this purpose, and its toothed wheel (3) cannot therefore be released from the motion-work pinion (19) during transport of the movement.
摘要:
The time-setting device includes a stem (8) capable of driving by friction a motion work wheel (29). The stem (8) ends in a knob (31) which rests against an annular flange (32) made under the motion work wheel. When the stem (8) is in a pushed in position, the knob runs idle. When this stem is pulled out, the knob drives the motion work to set the time of the hour (23) and minute (22) hands.
摘要:
The invention is a timepiece calendar mechanism for displaying the date and the day of the week, including a date indicator in the form of an internally toothed crown. The date indicator is driven by a first drive wheel having an external toothing so as to be able to be driven about an axis of rotation by a wheel set secured to an hour wheel of the timepiece. The toothing includes a prominent tooth, longer than the others, which abuts against a tooth of the inner toothing of the date indicator to move it forward one day in a time interval located around a determined time of the day. The mechanism also includes a day of the week indicator that moves forward one day during the time interval.
摘要:
A calendar mechanism for displaying the date and the day of the week in a timepiece, including a date indicator in the form of an internally toothed crown, means for driving said date indicator including a first drive wheel having an external toothing so as to be able to be driven about an axis of rotation by a wheel set secured to an hour wheel of the timepiece and said toothing including a prominent tooth, longer than the others, which abuts against a tooth of the inner toothing of the date indicator to move it forward one day in a time interval located around a determined time of the day, said mechanism also including a day of the week indicator, means for driving said day of the week indicator to move it forward one day during said time interval and means for positioning said indicators.
摘要:
Date mechanism for a timepiece such as a wristwatch including two superposed respectively lower (6) and upper (4) date rings, whose surface is divided into a plurality of sectors, the upper ring (4) including sixteen sectors, fifteen of which respectively bear fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is an extra sector having an open or transparent aperture (8), whereas the lower ring (6) includes seventeen sectors, sixteen of which bear respectively the other sixteen markings of the cycle of 31 positions, and the seventeenth of which is an extra sector, each of said rings cooperating with drive means such that the markings appear successively in a display zone (20) the date mechanism further including a jumper-effect stopping device (22) able to stop each ring (4, 6) in any desired position, the date mechanism being characterised in that one location on the upper ring (4) and one location on the lower ring (6) is provided with a thinned tooth (14) and (16), located between two successive teeth (10) or (12) of the toothing of the ring (4) or (6) concerned, the position of the drive means with respect to the toothing of the rings (4, 6) being such that when a ring (4) or (6) has its extra sector at the location of the display zone (20), the thinned tooth (14) or (16) is located opposite the drive means such that said drive means only drive the other ring, the thinned teeth (14, 16) not disturbing the movement of the drive means and allowing the stopping device (22) to be constantly housed between two successive teeth (10) or (12) of each of the rings (4, 6).
摘要:
Date mechanism for a timepiece such as a wristwatch including two superposed respectively upper (4) and lower (6) date rings, whose surface is divided into a plurality of sectors, the upper ring (4) including sixteen sectors, fifteen of which respectively bear fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is an extra sector having an open or transparent aperture (8), whereas the lower ring (6) includes seventeen sectors, sixteen of which bear respectively the other sixteen markings of the cycle of 31 positions, and the seventeenth of which is an extra sector, each of said rings (4, 6) cooperating with drive means such that the markings of the lower ring appear successively in a display zone (30), the date mechanism being wherein each ring (4, 6) includes two peripheral toothings extending along two stepped, respectively upper and lower rows, the teeth (10, 12) of the upper and lower rows of the upper ring (4) being superposed, whereas the teeth (18, 20) of the upper and lower rows of the lower ring (6) are staggered, one location (14, 16; 24, 26) of each of the toothings of the upper (4) and lower (6) rings being tooth free, and in that said date mechanism further includes a correction device, the position of the drive means with respect to the upper and lower toothings of the respectively upper (4) and lower (6) rings, and the position of the correction mechanism with respect to the lower and upper toothings of the respectively upper (4) and lower (6) rings being such that when the upper ring (4) has its extra sector at the location of said display zone (30), the drive means and the correction device are located respectively opposite the tooth free location (14, 16) of the toothing of the upper row and that of the lower row of the upper ring, and vice versa.
摘要:
Date mechanism for a timepiece such as a wristwatch including two superposed respectively upper (4) and lower (6) date rings, whose surface is divided into a plurality of sectors, the upper ring (4) including sixteen sectors, fifteen of which respectively bear fifteen successive markings of a cycle of 31 positions, and the sixteenth of which is an extra sector having an open or transparent aperture (8), whereas the lower ring (6) includes seventeen sectors, sixteen of which bear respectively the other sixteen markings of the cycle of 31 positions, and the seventeenth of which is an extra sector, each of said rings (4, 6) cooperating with drive means such that the markings of the lower ring appear successively in a display zone (30), the date mechanism being wherein each ring (4, 6) includes two peripheral toothings extending along two stepped, respectively upper and lower rows, the teeth (10, 12) of the upper and lower rows of the upper ring (4) being superposed, whereas the teeth (18, 20) of the upper and lower rows of the lower ring (6) are staggered, one location (14, 16; 24, 26) of each of the toothings of the upper (4) and lower (6) rings being tooth free, and in that said date mechanism further includes a correction device, the position of the drive means with respect to the upper and lower toothings of the respectively upper (4) and lower (6) rings, and the position of the correction mechanism with respect to the lower and upper toothings of the respectively upper (4) and lower (6) rings being such that when the upper ring (4) has its extra sector at the location of said display zone (30), the drive means and the correction device are located respectively opposite the tooth free location (14, 16) of the toothing of the upper row and that of the lower row of the upper ring, and vice versa.
摘要:
The gear train (1) connecting the driving element (3) to the minute wheel (2) includes a wheel and pinion (5) able to be disconnected from this train to interrupt the movement and stop the hour (23) and minute (22) display when the time-setting stem (8) is actuated while in a pulled out position (21). The disconnectable wheel and pinion (5) then undergoes a movement of translation which removes it from the other wheels and pinions (4, 6) of the train (1), the axes about which all the wheel and pinions rotate remaining substantially parallel to each other.