Artificial foot with members to help wearer maintain steady balance

An artificial foot to be secured to the stump of an amputee comprising;

• an elongated foot-shaped casing with an open top and a closed bottom, said foot-shaped casing having a toe portion, a heel portion and a positioning projection formed within said foot-shaped casing and extending substantially upward from the closed bottom;
• a flexible muscle member provided inside said foot-shaped casing and including an upwardly protruding curved intermediate section riding on and mounted to said positioning projection, and first front and rear sections respectively extending forwardly and rearwardly from said curved intermediate section into said toe and heel portions, wherein said flexible muscle member is one-piece plate member, said curved intermediate section having a substantially semi-circular portion with a concave face and a convex face;
• a stop member having weight bearing section covering said open top, said weight bearing section having an upwardly curved bottom part facing and being superimposed on said curved intermediate section of said flexible muscle member, a second front section extending from said curved bottom part downwardly and frontwardly into said toe portion so as to be disposed above said first front section of said flexible muscle member to prevent further bending movement of said first front section of said flexible muscle member relative to said second front section of said stop member when said first front section of said flexible muscle member is bent by application of pressure, said stop member further having a second rear section extending from said curved bottom part downwardly and rearwardly between said weight bearing section and said first rear section of said flexible muscle member to prevent further upward bending movement of said first rear section of said flexible muscle member when said first rear section of said flexible muscle member is bent by application of pressure on said heel portion.