20140034149 | HYDRAULIC JOINT STRUCTURE, HYDRAULICALLY-ACTUATED DEVICE INCLUDING HYDRAULIC JOINT STRUCTURE, JOINT PORTION CONSTITUTING HYDRAULIC JOINT STRUCTURE, HYDRAULIC PRESSURE GENERATING UNIT INCLUDING JOINT PORTION, END TOOL UNIT INCLUDING JOINT PORTION, AND HYDRAULIC HOSE UNIT INCLUDING JOINT PORTION - When a male member is inserted into a female member to connect a first joint portion of a hydraulic joint structure and a second joint portion thereof, a first open end portion of a first oil passage of the male member and a first open end portion of a first oil passage of the female member are connected at a first axial position, and a second open end portion of a second oil passage of the male member and a second open end portion of a second oil passage of the female member are connected at a second axial position. Thus, two hydraulic oil lines can be easily connected at the same time. | 02-06-2014 |