Door latch device

A door latch device comprising:

• an open link housed in the door latch device, the open link configured to
• operate in a case where an opening operation is performed on a door handle, and
• transmit an operation force to a ratchet lever in the case where the opening operation is performed on the door handle, the open link including:
• a lever main body configured to move in accordance with the opening operation performed on the door handle;
• an inertia lever part supported by the lever main body so as to be displaceable between an operating position and a non-operating position;
• and
• an energizing member configured to energize the inertia lever part to be maintained at the operating position with respect to the lever main body, the operation force of the door handle being not transmitted to the ratchet lever, in a case where the inertia lever part is disposed at the non-operating position against energizing force of the energizing member;
• the ratchet lever configured to release an engaging state of a ratchet with a latch in a case where the operation force is applied via the open link;
• and
• a restriction mechanism disposed between the lever main body and the inertia lever part, the restriction mechanism being configured to restrict returning movement to the operating position in a case where the inertia lever part moves to the non-operating position, wherein
• the inertia lever part is disposed to be relatively rotatable about a predetermined axis as a center and to be relatively slidable along the axis with respect to the lever main body, and is configured to rotate about the axis as the center to move to the operating position and the non-operating position, and
• the restriction mechanism causes the inertia lever part to slide along the axis with respect to the lever main body to be disposed at a predetermined shift position in a case where the inertia lever part rotates from the operating position toward the non-operating position.