Abstract

Disclosed is a device for securing and adjusting a bearing in an orifice in a bridge or a plate of a timepiece. It includes a first bearing screw defining a crimping opening of such a bearing and including an external thread, a second screw, so-called locking screw, defining an internal bore and including an external thread and a socket defining a tubular housing extending following a longitudinal axis, the tubular housing including a first tapped section, adapted to screw the first screw, and a second tapped section, adapted to screw the second screw. Advantageously, the external threads of the first and second screws and the corresponding sections of the socket have respective screwing pitches in opposite directions. Also disclosed is a method for securing and adjusting a bearing in an orifice provided for that purpose in a bridge or a plate of a timepiece thanks to such a device.

IPC Classes  ?

• G04B 31/06 - Manufacture or mounting processes
• G04B 31/04 - Shock-damping bearings with jewel hole and cap jewel
• F16B 39/16 - Locking of screws, bolts, or nuts in which the locking takes place after screwing down by means of locknuts in which the screw-thread of the locknut differs from that of the nut
• F16C 35/02 - Rigid support of bearing unitsHousings, e.g. caps, covers in the case of sliding-contact bearings

Abstract

i) arranged to provide an indirect impulse to said regulating organ (5) during a movement of said pallet in the path C of the escape wheel (2) by rotating the anchor (4) on its axis (X3). The invention also relates to a timepiece incorporating such an escapement mechanism.

IPC Classes  ?

• G04B 15/08 - Lever escapements
• G04B 15/14 - Component parts or constructional details, e.g. construction of the lever or the escape wheel
• G04B 5/08 - Automatic winding-up by self-winding caused by movement of the watch by oscillating weights the movement of which is limited acting in both directions

Abstract

A direct impulse free escapement mechanism for a timepiece includes: an escapement wheel with peripheral teeth; a locking device including a locking pallet engaging an escapement wheel tooth in a locking position of the locking device; and a control pallet actuated by a pivoting regulating organ to engage a complementary unlocking organ of the locking device to release the locking device from the escapement wheel in an unlocking position at each alternation of the regulating organ. Also included are impulse pallets attachable to the regulating organ, cooperating on an impulse plane with a tooth of the escapement wheel to transmit a direct impulse to the regulating organ. The locking device is drawn by the escapement wheel in each locking position. The teeth of the escapement wheel and the impulse pallets are configured so the impulses occur outside the plane of the escapement wheel. A corresponding timepiece is also disclosed.

IPC Classes  ?

• G04B 15/08 - Lever escapements
• G04B 15/14 - Component parts or constructional details, e.g. construction of the lever or the escape wheel
• G04B 5/08 - Automatic winding-up by self-winding caused by movement of the watch by oscillating weights the movement of which is limited acting in both directions

Abstract

Disclosed is an escapement mechanism with a locking anchor for a timepiece including a sprung-balance regulating organ, including an escapement wheel provided with a series of peripheral teeth, and a locking anchor including first and second locking pallets arranged respectively at one end of first and second arms to allow alternately engaging a tooth of the escapement wheel at each rotation step of the escapement wheel and of the anchor about their respective axis of rotation. This mechanism includes an impulse pallet adapted to be fixed to one the regulating organ to transmit an impulse by sliding a tooth of the escapement wheel on an impulse plane of the impulse pallet once at least every two oscillations of the regulating organ while the locking anchor includes a connecting member for permanent kinematic engagement in rotation to the regulating organ. Also disclosed is a timepiece incorporating such an escapement mechanism.

IPC Classes  ?

• G04B 15/08 - Lever escapements
• G04B 15/10 - Escapements with constant impulses for the regulating mechanism
• G04B 15/14 - Component parts or constructional details, e.g. construction of the lever or the escape wheel