Rope guidance for second device used on durahoist arm

Patent metadata

Field	Value
Publication number	US-10662040-B2
Application number	US-201816216355-A
Country	US
Kind code	B2
Filing date	Dec 11, 2018
Priority date	Feb 28, 2016
Publication date	May 26, 2020
Grant date	May 26, 2020

Abstract

A line guidance device (40) is provided for use with a confined space entry/retrieval hoist and fall protection anchorage system (10) and includes a line guide (46) that guides a line from an extend/retract line device (22) past another extend/retract line device (20) with both devices (20, 22) mounted on a backside (24) of a mast (12) of the system (10).

First claim

The invention claimed is:

1. A confined space hoist and fall protection anchorage system comprising:
a post comprising a first side, a second side, a proximal end, and a distal end, the post oriented along a first axis;
a line guidance device releasably coupled to the post at a first position and oriented away from the confined space, the line guidance device comprising a first flange and a second flange, the first flange and the second flange coupled perpendicularly a distance apart on a mounting plate, a pulley mounted between the first flange and the second flange and configured to rotate about a second axis perpendicular to the first axis;
a first extend/retract line device supported on the mounting plate; and
a second extend/retract line device removably coupled on the first side to the post at a second position proximal to the first position.

2. The system of claim 1 , wherein the line guidance device comprises:
a first mount structure removably coupled on the first side to the post at the first position, the first extend/retract line device being coupled to the first mount structure; and
a second mount structure removably coupled on the first side to the post at the second position proximal to the first position, the second extend/retract line device being coupled to the second mount structure.

3. The system of claim 1 , wherein the post is a first post, the system further comprising:
a second post comprising one or more pulleys disposed at a distal end of the second post and one or more other pulleys disposed at a proximal end of the second post, the second post pivotably coupled to the first post via one or more brackets and a spar coupled to the first post and the second post, the spar having an adjustable longitudinal length such that, as the spar is extended and retracted, the second post is pivoted at the proximal end about the first post.

4. The system of claim 3 , wherein the line guidance device is configured to guide a line between the second extend/retract line device and the one or more pulleys disposed at the distal end of the second post as the line travels from and to the one or more pulleys as the worker suspended from the line is lowered and raised by the system.

5. The system of claim 1 , wherein the line guide comprises another pulley mounted at least partially within the line guidance device for rotation.

6. The system of claim 2 , wherein each of the first mount structure and the second mount structure comprises a pair of spaced flanges configured to be positioned on opposite sides of the first post and configured to be releasably coupled to the first post using one or more fasteners.

7. The system of claim 6 , wherein each of the first mount structure and the second mount structure comprises one or more plates configured to be secured to the first post with one or more other fasteners.

8. The system of claim 3 , wherein the one or more pulleys comprise a first pulley and a second pulley, the first pulley being configured to guide a first line for movement as the first line travels to and from the first extend/retract line device, and the second pulley being configured to guide a second line for movement as the second line travels to and from the second extend/retract line device.

9. The system of claim 8 , wherein the first pulley is coupled to the second post at a first location and the second pulley is coupled to the second post at a second location further from the first post than the first location.

10. The system of claim 3 , wherein the first extend/retract line device is a winch and the first line is a winch cable.

11. The system of claim 8 , wherein the second extend/retract line device is a self-retracting lifeline device and the second line is a lifeline.

12. A confined space hoist and fall protection anchorage system comprising:
a first post positioned adjacent to a confined space, the first post oriented along a vertical axis and having a first side oriented away from the confined space;
a second post comprising one or more pulleys at a proximal end of the second post and one or more other pulleys at a distal end of the second post, the second post pivotably coupled to the first post via one or more brackets and a spar coupled to the first post and the second post, the spar having an adjustable longitudinal length such that, as the spar is extended and retracted, the second post is pivoted at a proximal end about the first post;
an extend/retract line device removably coupled to the on the first side to the first post at a first position, the extend/retract line device comprising a line guidance device, the line guidance device being releasably coupled to the first post at a first position and oriented away from the confined space, the line guidance device comprising a first flange spaced a distance apart from, and oriented perpendicular to, a second flange, the first flange and the second flange being supported on a mounting bracket, the line guidance device further comprising a pulley mounted between the first flange and the second flange, the pulley configured to rotate about a second axis perpendicular to the first axis; and
a second extend/retract line device removably coupled on the first side to the first post at a second position proximal the first position.

13. The system of claim 12 , wherein the one or more other pulleys at the distal end of the second post comprises a first pulley and a second pulley, the first pulley being configured to guide a first line for movement as the first line travels to and from the first extend/retract line device, and the second pulley being configured to guide a second line for movement as the second line travels to and from the second extend/retract line device.

14. The system of claim 13 , wherein the first pulley is positioned further from the first post than the second pulley.

15. The system of claim 13 , wherein the first extend/retract line device is a winch and the first line is a winch cable.

16. The system of claim 13 , wherein the second extend/retract line device is a self-retracting lifeline device and the second line is a lifeline.

17. A confined space hoist and fall protection anchorage system comprising:
a post positioned adjacent to a confined space along a first axis;
a line guidance device releasably coupled to the post at a first position and oriented away from the confined space, the line guidance device comprising a first flange and a second flange, the first flange and the second flange coupled perpendicularly a distance apart on a mounting plate, a pulley mounted between the first flange and the second flange and configured to rotate about a second axis perpendicular to the first axis;
a winch coupled to the mounting plate of the line guidance device, the winch configured to extend and retract a winch cable coupled to a harness worn by a worker suspended by the system; and
a self-retracting lifeline device removably coupled to the post at a second position proximal to the first position and oriented away from the confined space, the self-retracting lifeline device configured to extend and retract a lifeline extending from the self-retracting lifeline device, about the pulley of the line guidance device, and coupled to the harness worn by the worker suspended by the system.

18. The system of claim 17 , wherein the post is a first post, the system further comprising:
a second post comprising one or more pulleys disposed at a distal end of the second post and one or more other pulleys disposed at a proximal end of the second post, the second post pi

Assignees

• Honeywell Int Inc

Inventors

• Svoboda Radim
• Hrouzek Jan

Classifications

• B66D2700/0116

  Manually or spring operated winches · CPC title

• B66C23/166

  Simple cranes with jibs which may be fixed or can slew or luff · CPC title

• A62B35/0093

  Fall arrest reel devices · CPC title

• A62B35/0068

  Anchors · CPC title

• A62B1/10 Primary

  mechanically operated · CPC title