Document ID: chunk:federal_register_of_legislation:F2012C00357:front:0:p50
Version: federal_register_of_legislation:F2012C00357
Segment Type: other
Provision Reference: 
Character Range: 133431–136424

and (8).

          1.2.4. Neck (see Figures 1 and 2)

          The neck consists of seven polyurethane discs (9).  The stiffness of the neck can be adjusted by means of a chain tensioner.

          1.2.5. Head (see Figures 1 and 2)

          The head (15) itself is hollow; the polyurethane form is reinforced by steel plate (17).  The chain tensioner by which the neck can be adjusted consists of a polyamide block (10), a tubular spacer (11), and tensioning members (12)
             and (13).  The head can be turned about the Atlas‑Axis joint, which consists of the adjuster assembly (14) and (18), the spacer (16), and polyamide block (10).

          1.2.6. Knee joint (see Figure 4)

          The lower leg and thighs are connected by a tube (27) and a tensioner (28).

          1.2.7. Hip joint (see Figure 4)

          The thighs and torso are connected by a tube (23), friction plates (24), and tensioner assembly (25).

          1.2.8. Polyurethane

          Type:  PU 123 CH Compound

          Hardness:  50‑60 Shore A

          1.2.9. Overalls

          The manikin is covered by a special overall (see table 1).

          2. Correction devices

          2.1. General

          In order to calibrate the manikin to certain values and its total mass, the mass distribution are adjusted by the use of six correction steel masses of 1 kg each, which can be mounted at the hip joint.  Six polyurethane weights each of 1 kg mass can be mounted in the back of the torso.

          3. Cushion

          A cushion must be positioned between the chest of the manikin and the overall.  This cushion shall be made of polyethylene foam of the following specification:

              Hardness: 7‑10 shore A

              Thickness: 25 mm + 5

          It shall be replaceable.

          4. Adjustment of the joints

          4.1. General

In order to achieve reproducible results, it is necessary to specify and control the friction at each joint.

          4.2. Knee joint

          Tighten the knee joint.

          Set the thigh and lower leg vertical.

          Rotate the lower leg through 30°.

          Gradually slacken the tensioner (28) until the lower leg starts to fall under its own mass.

          Lock the tensioner in this position.

          4.3. Hip joint

          Tighten the hip joint.

          Place the thigh in a horizontal position and the torso in a vertical position.

          Rotate the torso in a forward direction until the angle between the torso and the thigh is 60°.

          Gradually slacken the tensioner until the torso starts to fall under its own mass.

          Lock the tensioner in this position.

          4.4. Atlas‑Axis joint

          Adjust the Atlas‑Axis joint so that it just resists its own weight in the fore and aft directions.

          4.5. Neck

 The neck can be adjusted by means of the chain tensioner (13).  When the neck is adjusted, the upper end of the tensioner shall displace between 4‑6 cm