Knee pad constructions

A protective knee pad for workmen comprising, in combination:

• a shell including a concave interior, a pad assembly on the concave interior, an upper section of said pad assembly and shell configured to fit above the knee joint, a middle section of said pad assembly and shell configured to fit over the patella, and a lower section of said shell and pad assembly projecting downwardly configured to fit over the upper shin, said pad assembly including a first lateral side and an opposite second lateral side with said shell intermediate said first and second lateral sides;
• a generally lower thigh attachment member configured to fit around the lower thigh and above the shell and pad assembly;
• a first lateral side link attached at one end to said first lateral side of the pad assembly and attached at its opposite end to said thigh attachment member;
• a second lateral side link attached at one end to said second lateral side of the pad assembly and attached at its opposite end to said thigh attachment member, said first and second links being locatable respectively on generally opposite sides of a knee;
• lower pivot connections that pivotally connect the shell and pad assembly to the first and second lateral side links;
• and
• upper pivot connections that pivotally connect the lower thigh attachment member to the first and second lateral side links at fixed locations therebetween.