Adjustable friction joint assembly for crash test dummy

A knee joint assembly for a crash test dummy comprising:

• a first joint member for connection to an upper leg portion of the crash test dummy;
• a second joint member for connection to a lower leg portion of the crash test dummy;
• a shaft operatively connected to said first joint member and said second joint member to allow rotation therebetween;
• and
• an adjustable friction assembly operatively connected to said shaft and operatively cooperating with said first joint member and said second joint member to adjust a friction tightness of said joint assembly.

An adjustable friction joint assembly for a crash test dummy comprising:

• a first joint member for connection to a first member of the crash test dummy;
• a second joint member for connection to a second member of the crash test dummy;
• a shaft operatively connected to said first joint member and said second joint member to allow rotation therebetween;
• an adjustable friction assembly operatively connected to said shaft and operatively cooperating with said first joint member and said second joint member to adjust a friction tightness of said joint assembly;
• and
• said adjustable friction assembly comprising a first friction member having a cavity, a plurality of springs disposed in said cavity, a friction material member disposed between said first friction member and said first joint member, a second friction member disposed adjacent said springs, and an adjustable member extending through said second friction member, said springs, said first friction member, and said first material member and engaging said shaft to move toward and away from said springs to adjust a friction tightness of said joint assembly.

A crash test dummy comprising:

• a body;
• at least one assembly operatively attached to said body;
• an adjustable friction joint assembly operatively attached to said body and said at least one assembly and comprising a first joint member connected to said body;
• a second joint member for connection to said at least one assembly;
• a shaft operatively connected to said first joint member and said second joint member to allow rotation therebetween;
• and
• an adjustable friction assembly operatively connected to said shaft and operatively cooperating with said first joint member and said second joint member to adjust a friction tightness of said joint assembly.

A crash test dummy comprising:

• a body having a leg comprising an upper leg portion and a lower leg portion;
• a knee joint assembly operatively attached to said upper leg portion and said lower leg portion and comprising a first joint member connected to said upper leg portion;
• a second joint member connected to said lower leg portion;
• a shaft operatively connected to said first joint member and said second joint member to allow rotation therebetween;
• and
• an adjustable friction assembly operatively connected to said shaft and operatively cooperating with said first joint member and said second joint member to adjust a friction tightness of said joint assembly.

A crash test dummy comprising:

• a body;
• at least one assembly operatively attached to said body;
• an adjustable friction joint assembly operatively attached to said body and said at least one assembly and comprising a first joint member connected to said body and a second joint member connected to said at least one assembly;
• a shaft operatively connected to said first joint member and said second joint member to allow rotation therebetween;
• an adjustable friction assembly operatively connected to said shaft and operatively cooperating with said first joint member and said second joint member to adjust a friction tightness of said joint assembly;
• and
• said adjustable friction assembly comprising a first friction member having a cavity, a plurality of springs disposed in said cavity, a friction material member disposed between said first friction member and said first joint member, a second friction member disposed adjacent said springs, and an adjustable member extending through said second friction member, said springs, said first friction member, and said first material member and engaging said shaft to move toward and away from said springs to adjust a friction tightness of said joint assembly.