Parallel type robot chuck

A parallel chuck comprising:

• a pressing member supported by a body slidably in a first direction;
• a pair of slide pawls facing each other and openable/closable by movement in a direction crossing said first direction;
• an urging member supported by said body slidably in said first direction and for urging said slide pawls apart from one another;
• a pair of action levers rotatably supported by said body and abutting said urging member and engaged with respective ones of said slide pawls for transmitting displacement of said pressing member and said urging member to said respective ones of said slide pawls;
• and
• a pair of shafts provided in said body for guiding respective fulcrums of said action levers and said slide pawls;
• each of said pawls having a reference portion upwardly projecting in a biased manner, two elongated holes, and a slot portion at a center portion for receiving a corresponding one of said action levers;
• said reference portion of one of said slide pawls, said action levers, and said reference portion of the other one of said slide pawls being supported side by side on said shafts.