Case or Cradle for a Fall Arrest Device

1 . An exoskeleton for a retractable fall arrester, the exoskeleton comprising:

a first contact surface ring defining a first aperture and having a first diameter; and

a second contact surface ring defining a second aperture and having a second diameter different than the first diameter;

wherein the exoskeleton is configured to roll around an arcuate path of a specific radius about a rolling axis extending through the first aperture and the second aperture.

2 . The exoskeleton of claim 1 , wherein the exoskeleton is configured to hold the retractable fall arrester when the retractable fall arrester is installed such that the retractable fall arrester rotates about the rolling axis.

3 . An exoskeleton for a retractable fall arrester, the exoskeleton comprising:

a body comprising a first half connected to a second half;

a first contact surface ring connected to the body having a first diameter;

a second contact surface ring connected to the body having a second diameter, wherein the second diameter is different from the first diameter;

a first end defining a first aperture; and

a second end defining a second aperture.

4 . The exoskeleton of claim 3 , wherein the exoskeleton is configured to hold the retractable fall arrester.

5 . The exoskeleton of claim 4 , wherein the first aperture is configured for passage of a connector mechanism for connecting the retractable fall arrester to a structural anchor.

6 . The exoskeleton of claim 5 , wherein the exoskeleton is configured to rotate around the structural anchor while resting on the first contact surface ring and the second contact surface ring.

7 . The exoskeleton of claim 4 , wherein the second aperture is configured for passage of a lifeline extending from the retractable fall arrester.

8 . The exoskeleton of claim 3 , wherein the first contact surface ring comprises a first contact surface and the second contact surface ring comprises a second contact surface.

9 . The exoskeleton of claim 8 , wherein the exoskeleton is configured to roll on the first and second contact surfaces.

10 . The exoskeleton of claim 8 , wherein the exoskeleton is configured to roll on a supporting structure only on the first and second contact surfaces without other exoskeleton structures touching the supporting structure.

11 . The exoskeleton of claim 8 , wherein the first and second contact surfaces comprise a shock absorbing material.

12 . The exoskeleton of claim 3 , wherein the first half and the second half are configured to be assembled by slotting the first half and the second half together.

13 . The exoskeleton of claim 3 , wherein the exoskeleton comprises a resilient plastic material.

14 . An exoskeleton for a retractable fall arrester, the exoskeleton comprising:

a first half connected to a second half;

a first ring having a first diameter;

a second ring having a second diameter, wherein the second diameter is different from the first diameter;

a first end defining a first aperture; and

a second end defining a second aperture,

wherein the first ring and the second ring have a circular cross-section;

wherein the first half and the second half form a body, wherein the first ring and the second ring are connected to the body;

wherein the first ring comprises a first contact surface and the second ring comprises a second contact surface;

wherein the first ring is configured to roll on the first contact surface;

wherein the second ring is configured to roll on the second rolling contact surface;

wherein at least a portion of first contact surface and second contact surface comprise a shock absorbing material;

wherein the body is configured to hold a retractable fall arrester that comprises connector for connecting the retractable fall arrester to a structural anchor, wherein the retractable fall arrester further comprises a lifeline;

wherein the first aperture is configured to receive the connector and structural anchor;

wherein the second aperture is configured for receiving the lifeline; and

wherein the exoskeleton comprises a resilient plastic material.

15 . A system for preventing injuries from a fall, comprising:

a fall arrest device comprising a connector for connection to a structure and a lifeline configured to support a user in case of a fall;

an exoskeleton comprising:

a first contact surface ring having a first diameter;

a second contact surface ring having a second diameter, wherein the second diameter is different from the first diameter;

a body comprising a first half connected to a second half;

a first end defining a first aperture; and

a second end defining a second aperture,

wherein the first contact surface ring and the second contact ring are connected to the body,

wherein the exoskeleton is configured to hold the fall arrest device.

16 . The exoskeleton of claim 15 , wherein the first aperture is configured for passage of the connector, wherein the connector connects the fall arrest device to a structural anchor on the structure.

17 . The exoskeleton of claim 16 , wherein the exoskeleton is configured to rotate around the structural anchor while resting on the first contact surface ring and the second contact surface ring.

18 . The exoskeleton of claim 15 , wherein the second aperture is configured for passage of the lifeline.

19 . The exoskeleton of claim 15 , wherein the first contact surface ring comprises a first contact surface and the second contact surface ring comprises a second contact surface.

20 . The exoskeleton of claim 19 , wherein the exoskeleton is configured to roll on the first and second contact surfaces.

21 . The exoskeleton of claim 19 , wherein the exoskeleton is configured to roll on a supporting structure only on the first and second contact surfaces without other exoskeleton structures touching the supporting structure.

22 . The exoskeleton of claim 19 , wherein the first and second contact surfaces comprise a shock absorbing material.

23 . The exoskeleton of claim 15 , wherein the first half and the second half are configured to be assembled by slotting the first half and the second half together.

24 . The exoskeleton of claim 15 , wherein the exoskeleton is configured to substantially surround the fall arrest device.

25 . The exoskeleton of claim 15 , wherein the exoskeleton comprises a resilient plastic material.

26 . A cradle for a fall arrest device, the cradle comprising:

a cradle body;

a first contact surface ring defining a first aperture and having a first diameter, the first contact surface ring being connected to the cradle body;

a second contact surface ring defining a second aperture and having a second diameter different than the first diameter, the second contact surface ring being connected to the cradle body;

wherein the cradle is configured to roll around an arcuate path of a specific radius about a rolling axis extending through the first aperture and the second aperture.