Retractable fall arrest with component assembly and cantilevered main shaft

A retractable fall arrest device comprising:

• a unit housing comprised of a first side member and a second side member;
• said first and second side members defining a chamber when assembled;
• said first and second side members being removably connectable;
• said unit housing defining an outlet;
• a spring assembly comprising a spring housing;
• a spring shaft rotatably mounted in said spring housing and a spring member operably fixed to said spring shaft within said spring housing;
• said spring shaft extending from said spring housing;
• said spring assembly being removably mounted to said unit housing;
• said spring shaft extending into said chamber of said unit housing when said spring assembly is mounted to said unit housing;
• a brake-clutch assembly comprising a brake-clutch housing, a brake-clutch shaft rotatably mounted in said brake-clutch housing, a clutch member operably fixed to said brake-clutch shaft within said brake-clutch housing to rotate within said brake-clutch housing, and a brake member mounted within said brake-clutch housing and operatively associated with said clutch member to slow or stop rotation of said clutch member upon activation of said brake member;
• said brake-clutch shaft extending from said brake-clutch housing;
• said brake-clutch assembly being removably mounted to said unit housing;
• said brake-clutch shaft extending into said chamber of said unit housing when said brake-clutch assembly is mounted to said unit housing;
• and
• a drum assembly received within said unit housing;
• said drum assembly comprising a central drum body, a spool portion, and a cable wound around said spool portion;
• said cable exiting said unit housing through said outlet of said unit housing;
• wherein said spring shaft has an inner end and comprises a first drive member positioned at said inner end of said spring shaft;
• said brake-clutch shaft has an inner end and comprises a second drive member positioned at said inner end of said brake-clutch shaft;
• said first and second drive members removably connecting said shafts to said central drum body to positively engage said central drum body such that said drum assembly is rotatably mounted in said unit housing and such that said spring shaft, said brake-clutch shaft and said drum assembly are rotationally fixed relative to each other.