JPH0372133U - - Google Patents

Description

[Brief explanation of the drawing]

Fig. 1 is a diagram showing the first embodiment of the present invention, Fig. 2 is a characteristic diagram of the damping force realized by the first embodiment, Fig. 3 is a diagram showing a cross section of the second embodiment, FIG. 4 shows a cross section of the third embodiment, FIG. 5 shows a conventional structure, and FIG. 6 shows a damping force characteristic diagram realized by the conventional structure. Cylinder...5, Piston lower chamber...6, Piston...8, Piston upper chamber...10, Working fluid, electrorheological fluid...14, Communication path...16, Electrode assembly...
...20A and 22A, 20B and 22B, 20C and 2
2C, 222A and 220, 222B and 220,2
22C and 220, 322A and 320, 322B and 320, 322C and 320, control unit...24.

Claims (1)

[Claims for Utility Model Registration] A cylinder, a piston that is slidable within the cylinder, an upper piston chamber and a lower piston chamber separated by the piston, and a communication passage that communicates between the upper and lower piston chambers; A working fluid is contained in the piston upper chamber, the piston lower chamber, and the communication passage,
In the shock absorber that damps vibrations applied to the piston by the flow resistance of the working fluid, the working fluid is an electrorheological fluid, and the communicating path has a positional relationship that allows the working fluid to flow between the pair of electrodes. A multi-stage damping force characterized in that a plurality of electrode sets are installed facing each other, and a control unit is provided to independently control on/off of energization to each electrode set. Adjustable shock absorber.