First Technology Safety Systems, Inc.

Joseph G Smrcka

David Charles Viano

Edward A Jedrzejczak

A lower leg assembly includes laceration indicators at a knee joint and at a front of a tibia. The tibia is connected to a thigh of a dummy by a pivot arm and a potentiometer is provided for measuring relative motion between the tibia and the pivot arm. A damper is positioned between the tibia and the pivot arm. A load cell is connected between the tibia and a lower leg to ankle connector. The connector is pivotally connected to an ankle joint and the ankle joint has a ball which cooperates with a socket formed in a foot assembly to simulate the range of motion of a human foot-ankle joint. Cushions are provided at the connector to ankle joint connection and the ball to socket connection to return the ankle and foot to a neutral position.

Lower leg for crash test dummy

An apparatus for simulating a pregnant female human during a crash test includes a torso having an abdominal cavity formed therein. A fetal insert assembly includes a fetal body simulating a human fetus with a head portion connected to a chest portion and a fetal insert defining a fetal cavity for retaining the fetal body. The fetal insert and fetal body are removably retained in an insert cavity in an abdominal shell which is removably retained in the abdominal cavity. A wall of the fetal cavity has an elongated slit formed therein can be deformed to separate the abutting sides and form an opening through which the fetal body is inserted into and removed from the fetal cavity. A first triaxial accelerometer is mounted in the head portion and a second triaxial accelerometer is mounted in chest portion of the fetal body for sensing acceleration in each of the three predetermined directions when force applied to the abdominal shell causes the fetal body to move. A mounting plate, bracket means attached to the lower abdominal portion of the torso and a plurality of load cells mounted on the bracket means are used to sense force applied to the abdominal shell. A jacket covers a chest flesh assembly, the torso and at least a portion of the abdominal shell and has zippers extending between an open bottom end and a neck opening, a right arm opening and a left arm opening.

Female crash test dummy having fetal insert

An apparatus for simulating a pregnant female human during a crash test includes a torso having an abdominal cavity formed therein for receiving a fetal abdominal assembly. The fetal abdominal assembly includes a fetal body simulating a human fetus in shape and weight, a fetal insert with a fetal cavity for receiving the fetal body and an abdominal shell removably retained in the abdominal cavity with an insert cavity for receiving the fetal insert. The fetal insert has a wall with an elongated slit formed therein whereby when the wall is deformed, an opening is formed through which the fetal body is inserted into and removed from the fetal cavity. The fetal abdominal insert and the fetal body are formed from different castable urethane elastomer materials. The abdominal shell and a chest flesh assembly are formed from a polyurethane foam. A jacket covers the torso and at least a portion of the fetal abdominal insert and has zippers extending between an open bottom end and a neck opening, a right arm opening and a left arm opening.

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Northville, MI, United States of America

Joseph G Smrcka