Swing Phase Control - Nabtesco NK-6 Symphony Manual De Instrucciones

2-4 Swing Phase Control

A hydraulic cylinder is used for swing
phase control.
controlled
resistance generated when the knee is
flexed and extended. The resistance at the
initial swing phase is kept at a low level so
that the user can initiate the swing phase
easily, and the resistance is increased
when the flexion angle is 40° or more. This
provides the user a comfortable walking
and less fatigue as if wearing a pneumatic
knee joint, and also powerfully response to
various walking speeds.
High
pressure
in flexion
Fig. 5 Swing Phase
Flexion
Resistance
Hydraulic
Extension
Fig. 6 Hydraulic Resistance
P.11
The swing
based on the
40 deg
NK-6
Conventional Hydraulic Swing
EN – 9
phase is
hydraulic
High
pressure
in extension
Knee
Angle
37