Actuator device and vehicle door lock device

An actuator device acting in two directions by a single driving actuator, comprising:

• a two-way actuation member that acts in first and second different directions respectively against a biasing force of a return biasing member, by a motive power of the driving actuator, with a neutral position where the two-way actuation member is held by the return biasing member as a reference position,
• a first operation mechanism that performs a first operation by the actuation of the two-way actuating member in the first direction, and
• a second operation mechanism that performs a second operation different from the first operation by the actuation of the two-way actuating member in the second direction, the second operation mechanism including a cooperation mechanism that acts by the actuation of the two-way operation member and a switching member that moves between first and second different positions by transmitting of the actuation of the cooperation mechanism,
• wherein when the two-way actuation member actuates the first operation mechanism, the two-way actuation member acts in the first direction from the reference position against the biasing force of the return biasing member, by the motive power of the driving actuator, to actuate the first operation mechanism, and then acts to return to the reference position by the biasing force of the return biasing member, and
• wherein when the two-way actuation member actuates the second operation mechanism, the two-way actuation member performs the following first and second switching operations:
• the first switching operation in which the two-way actuation member acts in the second direction from the reference position against the biasing force of the return biasing member, by the motive power of the driving actuator, to switch the switching member from the first position to the second position via the cooperation mechanism, then acts to return to the reference position by the biasing force of the return biasing member, and
• the second switching operation in which the two-way actuation member acts in the second direction from the reference position against the biasing force of the return biasing member, by the motive power of the driving actuator, to switch the switching member from
• the second position to the first position via the cooperation mechanism, then acts to return to
• the reference position by the biasing force of the return biasing member, thereby switching the switching member between the first and second positions.