Cylinder device and rod manufacturing method

• Main Authors: Omata, Yasuhisa, Akai, Ikuo, Komatsu, Toshifumi, Kubo, Naoya
• Format: Patent
• Language: English
• Published: 27.06.2023
• Subjects: BLASTING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS; HEATING; LIGHTING; MACHINE TOOLS; MEANS FOR DAMPING VIBRATION; MECHANICAL ENGINEERING; METAL-WORKING NOT OTHERWISE PROVIDED FOR; PERFORMING OPERATIONS; SHOCK-ABSORBERS; SOLDERING OR UNSOLDERING; SPRINGS; THERMAL INSULATION IN GENERAL; TRANSPORTING; WEAPONS; WELDING; WORKING BY LASER BEAM

In a cylinder device, a rod of which one end portion is joined to a piston in a cylinder and the other end portion protrudes from an opening portion of the cylinder includes a first member that is a hollow cylindrical member in sliding contact with a sliding contact member, and a second member that does not come into sliding contact with the sliding contact member. An outer diameter of at least a first member side end portion of the second member is smaller than an outer diameter of the first member. An inner peripheral portion of the first member is joined to an outer peripheral portion of the second member by friction weld joining.