| 摘要 |
PURPOSE:To prevent any deformation, etc., from occurring in a cylinder tube within the sliding range of a piston by welding a bracket extended on an outer circumference of the cylinder tube to that of this cylinder tube on almost the same circumference as a union. CONSTITUTION:A piston 13 is installed in a cylinder tube 12 slidably in the axial direction within a specified range S, and two sealing member 14, 15, forming pressure chambers R1, R2 together with are installed in the cylinder tube 12 at the outside of a sliding range of the piston 13. In reponse to a hole of the cylinder tube 12 at the outside of the sliding range of the piston 13, unions 18, 19, where turn tubes 16, 17 are attached, are welded to an outer circumference of the cylinder tube 12. Then, a bracket 30 is extended on an outer circumference of the cylinder tube 12, while the bracket 30 is welded (A) to the outer circumference of the cylinder tube on almost the same circumference as these unions 18, 19. |
