FLUID PRESSURE CYLINDER AND FLUID PRESSURE DRIVE UNIT

• Main Author: KUBOTA TAKUYA
• Format: Patent
• Language: English; Japanese
• Published: 27.09.2018
• Subjects: BLASTING; DETAILS OF FLUID-PRESSURE SYSTEMS, NOT OTHERWISE PROVIDED FOR; FLUID-PRESSURE ACTUATORS; FLUID-PRESSURE ACTUATORS, e.g. SERVO-MOTORS; HEATING; HYDRAULICS OR PNEUMATICS IN GENERAL; LIGHTING; MECHANICAL ENGINEERING; SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL; WEAPONS

PROBLEM TO BE SOLVED: To provide a fluid pressure cylinder with a limitable operation speed.SOLUTION: A hydraulic cylinder 100 comprises an outer tube 10, an inner tube 20, a piston rod 30, a piston 40, an opposite-to rod side passage 54a, and a rod side passage 54b. The opposite-to rod side passage 54a and the rod side passage 54b are formed by the outer tube 10 and the inner tube 20. The inner tube 20 receives pressure in the opposite-to rod side passage 54a to move with respect to the outer tube 10 and throttles the flow of a hydraulic oil in the rod side passage 54b when the hydraulic oil is supplied to an opposite-to rod side chamber 51a through the opposite-to rod side passage 54a.SELECTED DRAWING: Figure 1 【課題】動作速度を制限可能な流体圧シリンダを提供する。【解決手段】油圧シリンダ１００は、アウターチューブ１０と、インナーチューブ２０と、ピストンロッド３０と、ピストン４０と、反ロッド側通路５４ａと、ロッド側通路５４ｂと、を備え、反ロッド側通路５４ａ及びロッド側通路５４ｂは、アウターチューブ１０とインナーチューブ２０とにより形成され、インナーチューブ２０は、作動油が反ロッド側通路５４ａを通じて反ロッド側室５１ａに供給されるときには、反ロッド側通路５４ａ内の圧力を受けてアウターチューブ１０に対して移動しロッド側通路５４ｂにおける作動油の流れを絞る。【選択図】図１