Self-retracting lifeline with reserve lifeline portion
View Patent ↗A self-retracting lifeline includes a reserve lifeline portion and comprises a housing, a drum rotatably operatively connected to the housing, and a lifeline. A stop member is operatively connected to an intermediate portion a distance from a first end of the lifeline. A bumper portion is operatively connected to the housing and includes a bore through which the lifeline extends, the bore being smaller than the stop member to prevent passage of the stop member through the bore and out of the housing. At least a portion of the bumper portion disconnects from the housing when a predetermined force is exerted on the bumper portion to allow the stop member to exit the housing.
1. A self-retracting lifeline, comprising:
a housing;
a drum rotatably operatively connected to the housing;
a lifeline having a first end operatively connected to the drum, an intermediate portion windable about the drum, and a second end;
a stop member operatively connected to the intermediate portion a distance from the first end; and
a bumper portion operatively connected to the housing, the bumper portion including a bore through which the lifeline extends, the bore being smaller than the stop member to prevent passage of the stop member through the bore and out of the housing, at least a portion of the bumper portion disconnecting from the housing when a force of at least 450 pounds is exerted on the bumper portion to allow passage of the stop member out of the housing.
2. The self-retracting lifeline of claim 1 , wherein the distance is 2 to 4 feet.
3. The self-retracting lifeline of claim 1 , wherein the bumper portion includes an outer portion operatively connected to the housing and an inner portion operatively connected to the outer portion, the outer portion having a first bore configured and arranged to receive the inner portion, the inner portion having a second bore through which the lifeline extends, the stop member being smaller than the first bore and larger than the second bore, the inner portion disconnecting from the outer portion when a force of at least 450 pounds is exerted on the inner portion to allow passage of the stop member out of the housing.
4. The self-retracting lifeline of claim 3 , further comprising a pin connecting the outer portion and the inner portion, wherein the pin breaks to disconnect the outer portion and the inner portion.
5. The self-retracting lifeline of claim 3 , further comprising a spring placing a biasing force on the outer portion and the inner portion and exerting a downward force on the inner portion relative to the outer portion, wherein the spring absorbs energy from an upward force placed on the inner portion.
6. The self-retracting lifeline of claim 5 , further comprising a lifeline bumper operatively connected to the lifeline proximate the second end, at least a portion of the lifeline bumper being configured and arranged to be received in at least a portion of the inner portion.
7. A self-retracting lifeline, comprising:
a housing;
a drum rotatably operatively connected to the housing;
a lifeline having a first end operatively connected to the drum, an intermediate portion windable about the drum, and a second end;
a stop member operatively connected to the intermediate portion a distance from the first end; and
a bumper portion operatively connected to the housing, the bumper portion including an outer portion operatively connected to the housing and an inner portion operatively connected to the outer portion, the outer portion having a first bore configured and arranged to receive the inner portion, the inner portion having a second bore through which the lifeline extends, the stop member being smaller than the first bore and larger than the second bore, the inner portion disconnecting from the outer portion when a force of at least 450 pounds is exerted on the inner portion to allow passage of the stop member out of the housing.
8. The self-retracting lifeline of claim 7 , wherein the distance is 2 to 4 feet.
9. The self-retracting lifeline of claim 7 , further comprising a pin connecting the outer portion and the inner portion, wherein the pin breaks to disconnect the outer portion and the inner portion.
10. The self-retracting lifeline of claim 7 , further comprising a spring placing a biasing force on the outer portion and the inner portion and exerting a downward force on the inner portion relative to the outer portion, wherein the spring absorbs energy from an upward force placed on the inner portion.
11. The self-retracting lifeline of claim 10 , further comprising a lifeline bumper operatively connected to the lifeline proximate the second end, at least a portion of the lifeline bumper being configured and arranged to be received in at least a portion of the inner portion.
12. A self-retracting lifeline, comprising:
a housing;
a drum rotatably operatively connected to the housing;
a lifeline having a first end operatively connected to the drum, an intermediate portion windable about the drum, and a second end;
a stop member operatively connected to the intermediate portion a distance from the first end;
a bumper portion operatively connected to the housing, the bumper portion including an outer portion operatively connected to the housing and an inner portion operatively connected to the outer portion, the outer portion having a first bore configured and arranged to receive the inner portion, the inner portion having a second bore through which the lifeline extends, the stop member being smaller than the first bore and larger than the second bore, the inner portion disconnecting from the outer portion when a force of at least 450 pounds is exerted on the inner portion to allow passage of the stop member out of the housing;
a pin connecting the outer portion and the inner portion, wherein the pin breaks to disconnect the outer portion and the inner portion; and
a biasing member placing a biasing force on the outer portion and the inner portion and exerting a downward force on the inner portion relative to the outer portion, wherein the biasing member absorbs energy from an upward force placed on the inner portion.
13. The self-retracting lifeline of claim 12 , wherein the distance is 2 to 4 feet.
14. The self-retracting lifeline of claim 12 , further comprising a lifeline bumper operatively connected to the lifeline proximate the second end, at least a portion of the lifeline bumper being configured and arranged to be received in at least a portion of the inner portion.
15. The self-retracting lifeline of claim 12 , wherein the biasing member is a spring.