Cartridge vane pump and pump device

A cartridge vane pump attached to a body of a fluid pressure device, the cartridge vane pump comprising:

• a rotor configured to be driven rotationally;
• a plurality of vanes provided in the rotor, the plurality of vanes being configured to reciprocate in a radial direction of the rotor;
• a cam ring having an inner circumference cam face with which the plurality of vanes are brought into sliding contact;
• a side member slidably contacting first sides of the rotor and the cam ring;
• a cover member including a cover-side side plate and a cover, wherein the cover-side side plate slidably contacts second sides of the rotor and the cam ring, which are opposite to the first sides of the rotor and the cam ring, the cover being attached to the body;
• and
• a linkage member extending between the side member and the cover over an outer circumferential surface of the cam ring, thereby to link the side member and the cover, wherein
• the linkage member includes:
• a linkage portion linked to one of the side member and the cover;
• an extended portion extending in an axial direction of the rotor from the linkage portion towards an other of the side member and the cover;
• and
• a support portion projecting out from the extended portion in a direction intersecting the axial direction, thereby to support the other of the side member and the cover,
• the one of the side member and the cover has a hole which opens along an outer circumferential surface thereof,
• the linkage portion is inserted into the hole in a freely rotatable manner,
• the other of the side member and the cover has a groove extending in a circumferential direction on an outer circumferential surface thereof, and
• the support portion is inserted into the groove as the linkage portion is rotated.