When the button member is released as in FIG 6, cord 44 will be forced into the V grooves 40 and the body 26 by protrusions 32, providing a cord retention greater than achievable without {HEAD ~ the wedging action} of the V grooves and {TAIL ~ protrusions} 
When the button member is released as in FIG 6 , cord 44 will be forced into the V grooves 40 and the body 26 by protrusions 32 , providing a cord retention greater than achievable without { HEAD ~ the wedging action } of the V grooves and { TAIL ~ protrusions }
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