FIELD: mechanics.
SUBSTANCE: invention includes gear trigger wheel installed on the first axis with possibility of being turned, balance installed on the second axis with possibility of being turned and to which there coaxially attached is pulse pallet, and lock on which there is locking pallet interacting with the first tooth of the above trigger wheel. At that, the lock is installed with possibility of being turned on the third axis and releasing the first tooth in the unlocking phase, and pulse pallet has the possibility of interacting with the second tooth of trigger wheel so that it can receive an impulse from it after the above unlocking phase. According to the invention, the trigger also includes coaxial restricting plate and attached to the balance so that it can be turned; at that, perimeter of the restricting plate has essentially the round base part and also the cut located opposite the locking pallet in the above unlocking phase, and size of the restricting plate provides safe distance separating the locking pallet from the round base part when they are located opposite each other and which is shorter than the above entering length.
EFFECT: increasing efficiency and safety level against bumps of locking trigger for watch.
20 cl, 5 dwg
