A spring retainer includes a locking member which locks one end side of the piston spring, and a rod-shaped member (82) of which one end is in contact with the locking member to restrict a length of the piston spring and the other end is fixed to the piston (11), and the rod-shaped member (82) is installed in a concave portion (140) of the piston (11), and the concave portion (140) has a protruding portion (142), which is extruded by plastic deformation toward a radial direction of the concave portion (140) and is formed of the same member as the opening circumferential edge portion (141), in the vicinity of the opening circumferential edge portion (141).
Master cylinder and manufacturing method therefor
2020-03-03
Patent
Electronic Resource
English
IPC: | F15B SYSTEMS ACTING BY MEANS OF FLUIDS IN GENERAL , Druckmittelbetriebene Systeme allgemein / B60T Bremsanlagen für Fahrzeuge oder Teile davon , VEHICLE BRAKE CONTROL SYSTEMS OR PARTS THEREOF / F16B DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES , Vorrichtungen zum Befestigen oder Sichern von Konstruktionselementen oder Maschinenteilen, z.B. Nägel, Bolzen, Schrauben, Sprengringe, Klemmen, Klammern oder Keile |
Method for manufacturing cylinder body of hydraulic master cylinder, and hydraulic master cylinder
European Patent Office | 2015
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