UL60335-2-24 Articulated Probe

Item

Dimension description

Dimension (mm)

A

Middle finger length, 95 percentile

55

B

Middle finger diameter, 5 percentile

9.1

C

Hand length, 95 percentile

125

D

Elbow to wrist length, 95 percentile

165

E

Wrist diameter (circumference divided by pi), 5 percentile

32

F

Forearm diameter (circumference divided by pi), 5 percentile

46

G

Minimum hand CLEARANCE (cone shaped hand part), 5 percentile

39.1

H

Cone shaped part at finger attachment

20

I

Hand breadth (flat hand part), 5 percentile

48

J

Wrist breadth (used for the hand thickness – flat hand part), 5 percentile

24

K

Hand breadth at finger attachment (flat hand part)

36

L

Upper arm length, 95 percentile

a

Notes:

1 – The probes were designed with a center pin to rotate the hand with respect to the lower arm. That motion can be equivalently represented by rotating the probe.

2 – The finger "tip" is developed to match the dimensions of the UL articulated probe. The diameter from the tip to the first joint then tapers from the tip dimensions to the finger diameter. The joints are spaced equally along the finger length.

3 – The probe is designed to permit the hand to "bend" with respect to the arm using a hinge pin located 6 mm (0,24 in) from the hand length (wrist end) and the hand is restricted in bending not more than 90° with respect to the arm.

a If the upper arm is required to evaluate a part it shall consist of a flexible tube attached at the end of the lower arm, as the exact position of the elbow cannot be readily determined from the data points chosen.