Valve timing control device for internal combustion engine

A valve timing control device for an internal combustion engine comprising:

• a housing having a cylindrical portion that has a cylindrical shape, a first side portion that closes an axial direction one end side of the cylindrical portion and a second side portion that closes an axial direction other side of the cylindrical portion and rotating with a crankshaft;
• a vane rotor relatively rotatably disposed at a radially inner side of the cylindrical portion of the housing and rotating with a camshaft;
• a plurality of shoes protruding from an inner periphery of the cylindrical portion of the housing to the radially inner side;
• a plurality of vanes protruding from an outer periphery of the vane rotor to a radially outer side and dividing a working chamber formed between two shoes that are adjacent to each other in a circumferential direction into a retard working chamber and an advance working chamber;
• a lock member provided movably in an axial direction in an accommodation hole formed at the vane rotor;
• and
• a lock hole opening in the axial direction at the first side portion of the housing and restraining a relative rotation position of the vane rotor to the housing by a top end portion of the lock member being fitted into the lock hole, and wherein
• the vane rotor has a small diameter portion and a large diameter portion whose radial direction size is larger than that of the small diameter portion,
• the large diameter portion extends in the circumferential direction so as to cover the lock hole all over a relatively rotatable range of the vane rotor with respect to the housing,
• the plurality of vanes include a first vane that protrudes from an outer periphery of the large diameter portion to the radially outer side, and
• at least a part of the accommodation hole is provided at the large diameter portion and located at a position that overlaps with an area formed by elongating the first vane to the radially inner side, viewed from an axial direction of the vane rotor.