Extension member anchor

In a spring drive retractor having a case with an inner space for a spring and a reel, with one end of the spring connected to the case and the other end of the spring connected to the reel, and with an extension member having one end connected to the reel and the other end passing outwardly through the case,

• a reel having an axis of rotation and comprising a body and a post molded as a single piece with said post projecting from said body parallel to said reel axis of rotation and in line with a transverse first opening in said body and with said post and body joined by a rupturable membrane, with said post in a first position outside said body, said post having an axis in line with said first opening, and said post having means defining an extension member receiving second opening, said first opening being dimensioned to be a push fit for said post,
• with said post movable along said post axis into said body first opening from said first position into a second position inside said body rupturing said membrane and positioning said post with said second opening in said body first opening fixing the extension member in said reel.