Girder beam installation and removal system and method

Patent metadata

Field	Value
Publication number	US-10793399-B2
Application number	US-201815908357-A
Country	US
Kind code	B2
Filing date	Feb 28, 2018
Priority date	Feb 28, 2018
Publication date	Oct 6, 2020
Grant date	Oct 6, 2020

Abstract

An installation jib for a girder beam installation and removal system includes a main body having a first end and a second, opposite end, the main body extending along a longitudinal axis between the first end and the second end. The installation jib further includes a first sub-frame element coupled to the main body, a first roller coupled to the first sub-frame element, a second sub-frame element coupled to the main body, and a second roller coupled to the second sub-frame element. The first sub-frame element and the second sub-frame element are spaced longitudinally apart from one another, and the first roller and the second roller each are configured to rotate about an axis that is parallel to the longitudinal axis.

First claim

What is claimed is:

1. An installation jib for a girder beam installation and removal system, the installation jib comprising:
a main body having a first end and a second, opposite end, the main body extending along a longitudinal axis between the first end and the second end;
a first sub-frame element coupled to the main body;
a first roller coupled to the first sub-frame element;
a second sub-frame element coupled to the main body; and
a second roller coupled to the second sub-frame element;
wherein the first sub-frame element and the second sub-frame element are spaced longitudinally apart from one another and spaced longitudinally apart from the first end and the second end of the main body, wherein the first roller and the second roller each are configured to rotate about an axis that is parallel to the longitudinal axis.

2. The installation jib of claim 1 , further comprising a third sub-frame element coupled to the main body and a third roller coupled to the third sub-frame element, wherein the third sub-frame element is removably coupled to the main body.

3. The installation jib of claim 2 , wherein at least a portion of the third sub-frame element is disposed longitudinally between the first sub-frame element and the second sub-frame element.

4. The installation jib of claim 2 , wherein the third roller is positioned below the second roller, such that a plane that passes through the longitudinal axis also passes through both the second roller and the third roller.

5. The installation jib of claim 1 , wherein a prime mover is coupled to the second end of the main body.

6. The installation jib of claim 5 , wherein a lift block is coupled to the first end of the main body, and wherein the lift block is coupled to the prime mover.

7. The installation jib of claim 1 , wherein the first sub-frame element and the second sub-frame element each extend downward from the main body.

8. The installation jib of claim 1 , wherein the main body includes telescoping portions.

9. The installation jib of claim 1 , wherein the main body is configured to rotate.

10. An installation jib for a girder beam installation and removal system, the installation jib comprising:
an elongate main body having a first end and a second, opposite end, the main body extending along a longitudinal axis between the first end and the second end;
a plurality of sub-frame elements and rollers coupled to the main body between the first end and the second end, each of the sub-frame elements including at least one roller;
a prime mover coupled to the second end; and
a lift block coupled to both the first end and to the prime mover.

11. The installation jib of claim 10 , wherein the lift block includes a first pulley support extending from the first end of the main body, a first pulley coupled to the first pulley support, a second pulley support spaced from the first end of the main body, and a second pulley coupled to the second pulley support, wherein a line extends from the prime mover around both the first pulley and the second pulley.

12. The installation jib of claim 11 , wherein a swivel element is coupled to the second pulley support.

13. The installation jib of claim 10 , wherein the lift block includes at least one pulley, and wherein a line extends from the prime mover to the at least one pulley.

14. The installation jib of claim 10 , wherein at least a portion of the lift block is integrally formed as a single piece with the first end of the main body.

15. The installation jib of claim 10 , further comprising a cradle coupled to the lift block, wherein the cradle includes at least one frame element configured to support a girder beam.

16. The installation jib of claim 15 , wherein the cradle includes a plurality of frame elements that together form U-shaped frame structure for supporting a girder beam.

17. The installation jib of claim 15 , wherein the lift block includes a swivel element releasably coupled to the cradle.

Assignees

• Konecranes Global Corp

Inventors

• Lawrence Steve
• Wotachek Cory

Classifications

• B66C11/10 Primary

  equipped with jibs (jib-cranes B66C23/00) · CPC title

• B66C1/105

  Lifting beam permitting to depose a load through an opening · CPC title

• B66C17/00 Primary

  Overhead travelling cranes comprising one or more substantially horizontal girders the ends of which are directly supported by wheels or rollers running on tracks carried by spaced supports · CPC title

• B66C23/26

  for use on building sites; constructed, e.g. with separable parts, to facilitate rapid assembly or dismantling, for operation at successively higher levels, for transport by road or rail (with supporting couples provided by walls or buildings B66C23/20; mounted on vehicles B66C23/36; jib constructions B66C23/64) · CPC title