Sensor unit-actuating mechanism and liquid crystal display device provided with sensor unit-actuating mechanism

A sensor unit actuating mechanism comprising:

• a frame disposed around an object to be measured;
• a sensor unit comprising a sensor for measuring a physical quantity from the object to be measured, the sensor unit disposed inside the frame;
• a guide member configured to guide the sensor unit to move in an X direction linearly, the X direction being a direction from inside the frame to a measurement position;
• a spring member configured to expand or contract in a first Y direction, the first Y direction being a direction having an angle of 45 to 135 degrees or −45 to −135 degrees relative to the X direction, the spring member having one end fixed to the sensor unit and the other end fixed to the frame;
• and
• an actuator configured to expand or contract in a second Y direction, the second Y direction being a direction having an angle of 45 to 135 degrees or −45 to −135 degrees relative to the X direction, the actuator disposed to move the sensor unit when the actuator is energized to contract, further comprising:
• a rotatable balance member having a shaft coupled to the frame,
• a movable arm having a tip attached to the sensor unit, the movable arm being rotatable using a base thereof as a rotational axis,
• wherein a slider capable of sliding in a third Y direction is disposed in a main body of the movable arm, the third Y direction being a direction having an angle of 45 to 135 degrees or −45 to −135 degrees relative to the X direction,
• wherein a shaft of the balance member is coupled to the frame,
• wherein an end of the spring member is attached to the base of movable arm to pull the slider, and the other end thereof is attached to the slider;
• wherein an end of the actuator is fixed to the balance member to cause the balance member to start rotating forward, and the other end thereof is coupled to the frame,
• wherein the movable arm and the balance member interlock with each other, and
• wherein the actuator is energized to contract against the resilience of the spring, thereby causing the balance member to start rotating forward, and the slider is subsequently pulled back using the resilience of the spring member to cause the balance member to further rotate forward, and the balance member and the movable arm interlock with each other to linearly move the sensor unit from inside the frame to the measurement position in the X direction.