DK202100213A1 - A safety rod and a procedure for handling heavy items - Google Patents

Abstract

Herein, a safety rod (1) is described which comprises rod element (2) which includes a first longitudinal side (3) and a second longitudinal side (4), where said first longitudinal side (3) is opposite said second longitudinal side (4), where a third longitudinal side (5) and a fourth longitudinal side (6) extend longitudinally between said first longitudinal side (3) and said second longitudinal side (4) and where said third longitudinal side (5) is opposite said fourth longitudinal side ( 6). The safety rod (1) also comprises one or more notches (7) in said first longitudinal side (3) of said rod element (2), where said notch (7) extends say all the way through said rod element (2) from said third longitudinal side ( 5) to said fourth longitudinal side (6). The safety rod (1) is characterized in that the safety rod (1) further comprises a locking element (8) that extends all the way across said notch (7) at a corner between said first longitudinal side (3) and said third longitudinal side (5) of said rod element (2). In addition, a method for handling heavy elements (12) and the use of a safety rod (1) is described.

Description

DK 2021 00213 A1 1

A SAFETY ROD AND A METHOD FOR HANDLING HEAVY ELEMENTS Field of application of the invention The present invention relates to a safety rod comprising a rod element with — notch. The invention also relates to a method for handling heavy elements and the use of a safety rod. The state of the art Today, the unloading of heavy objects (such as concrete elements, concrete beams - and the like) is characterized by a person standing on a ladder or on top of the object. Clinging from a ladder leads to ergonomically debilitating working positions, due to heavy weight in extreme positions. Piling of objects, at a height of more than 2 meters, without safety measures is typically prohibited. Today, no or individual fall protection equipment is used to protect against falls, where the use of fall protection also causes unwanted ergonomic effects and complicates the work process. The piling itself today takes place using lifting devices such as chains, straps or wire, which are connected to a crane at the workplace. The selected lifting device is connected to attachment equipment such as a hook, lifting bracket, eyebolt, shackles or ring coupling, which enables the lifting of the workpiece, as it is placed around the workpiece's lifting device or tightened around the workpiece. Carving of the items takes place today outside at the workplaces in all kinds of wind and weather. This makes the working conditions for the chipper, standing on a ladder or on the workpieces, — more difficult and the risk of falling increases. From the American patent application US 2015/0166308 Al, therefore, low lowered lifting devices in a concrete element are known so that the elements can be stacked on top of each other and so that attachment tools can be connected to the lifting devices — on the top element of a stack of concrete elements and thereby lifted away with a crane. But this still requires the chopper to have to crawl around on top

DK 2021 00213 A1 the 2 elements. It is therefore an aim of the invention to provide technology for handling heavy elements.

The invention The invention relates to a safety bar which comprises a bar element which includes a first longitudinal side and a second longitudinal side, where said first longitudinal side is opposite said second longitudinal side, where a third longitudinal side and a fourth longitudinal side extend longitudinally between said first longitudinal side and said second longitudinal side and where said third longitudinal side is opposite said fourth longitudinal side. The safety rod also comprises one or more notches in said first longitudinal side of said rod element, where said notch extends all the way through said rod element from said third longitudinal side to said fourth longitudinal side. The safety rod is characterized in that the safety rod further comprises a locking element which extends all the way across said notch at a corner between said first longitudinal side and said third longitudinal side of said rod element.

It is advantageous to design the safety rod with notches as this enables the safety rod to be placed on top of lifting devices in a concrete element in a stack of heavy elements. In this way, the lifting devices do not need to be embedded in the element and the lifting devices are simultaneously protected by the safety rod. Furthermore, — the safety bar creates distance between stacked elements so that a lifting line can be pre-assembled on the lifting devices of an element before a next element is stacked on top and these lifting lines can be passed over the side of the element so that a crane line can be attached to the lifting lines without a feller having to crawl around on the element. It is also advantageous to provide the safety rod with a locking element - which delimits the lower outer edge of the notch, as the safety rod cannot thereby be moved as long as a lifting line is mounted on an element's lifting devices. Hereby

DK 2021 00213 A1 3 increases safety when using the safety rod. With the invention, an unloading/chopping method is thereby made possible which is light and easy for the chopper, and by which the work of unloading objects from a lorry can be carried out in a safe and fully responsible manner. Working at height and thereby the risk of falling is eliminated, as the safety rod allows the chipper to stand on the ground and chip the elements. The safety rod thus alleviates a working environment challenge in, among other things, the construction industry.

It must be pointed out that the term "heavy elements" in this context must be understood as any form of building elements, machine elements, beams, rafter structures and other large elements that are essentially stackable and weigh so much that they must be handled with a crane.

It must be pointed out that the term "lifting line" in this context must be understood as any kind of wire, cable, chain, strap or anything else that can be used for lifting heavy elements. One aspect of the invention is that said rod element comprises a first notch located at — a first notch distance from a first end of said rod element and a second notch located at a second notch distance from another end of said rod element, and where said first notch distance in the substantially equal to said second notch distance.

— By shaping the safety rod with two notches, it is possible that the safety rod can be used on elements with four lifting devices and by placing the notches symmetrically, the same safety rod can be used on both sides of the element.

One aspect of the invention is that said locking element is rigidly connected to said rod element.

DK 2021 00213 A1 4 Connecting the locking element to the rod element is advantageous as this enables the locking element and the rod element to be made of different materials. One aspect of the invention is that said locking element is an integral part of said rod element.

Forming the locking element as an integral part of the rod element is advantageous as it enables a simple manufacturing process.

One aspect of the invention is that said rod element is made of wood or plastic and where said locking element is made of flat iron. It is advantageous to make rod elements from wood or plastic as these materials are cheap and durable against pressure. At the same time, it is advantageous that the locking element is made of — flatjem as it enables the locking element to be designed so that it prevents the jamming as little as possible, while at the same time having sufficient strength to prevent it from breaking or otherwise being damaged. One aspect of the invention is that said safety rod comprises one or more visual elements that indicate a correct mounting direction of said safety rod. It is advantageous to provide the safety rod with visual elements, as this enables the correct orientation of the safety rod to be easily and safely communicated to the person installing the safety rod.

It must be pointed out that the term "visual elements" in this context must be understood as any form of arrows, pictograms, written instructions or anything else that can indicate the correct mounting direction of a safety rod.

— The invention also relates to a method for handling heavy elements, each comprising at least a first lifting device and a second lifting device anchored in

DK 2021 00213 A1 each of said heavy elements, where said method comprises the following steps: e places a first safety rod according to any of the preceding claims on top of a first heavy element so that said first lifting device of said first 5 heavy element is arranged in the notch of this safety rod, e places a second safety rod according to any of the preceding claims on top of said first heavy element so that said second lifting device of said first heavy element is arranged in this safety rod's notch, where the first longitudinal side of said first safety rod and said second safety rod face each other and where the third longitudinal side of said first safety rod and said second safety rod rest against said first heavy element, e places a second heavy element on top of said first heavy element so that said second heavy element rests on said first safety rod and said second safety rod, e places a third sure safety rod according to any of the preceding claims on top of said second heavy element such that said first lifting device of said third safety rod is arranged in this safety rod's notch, e places a fourth safety rod according to any of the preceding claims on top of said second heavy element so that said second lifting device of said fourth safety rod is arranged in this safety rod's notch, where the first longitudinal side of said third safety rod and said fourth safety rod face each other and where the third longitudinal side of said third safety rod and said fourth safety rod rest against said second heavy element.

This method is advantageous in that the safety bars protect the lifting devices at the same time as distance is created between the heavy elements.

An aspect of the invention is that the method further comprises connecting a lifting line to each of said first lifting device and second lifting device on said

DK 2021 00213 A1 6 first heavy element and connect a lifting line to each of said first lifting device and second lifting device on said second heavy element.

Since the safety bars create distance between the stacked heavy elements, it is — advantageous to connect overhead lines to each of the lifting devices as this will facilitate the unloading procedure.

An aspect of the invention is that the method further comprises leading said lifting lines connected to said first heavy element beyond one side of said first heavy element and gathering these with a lifting eye and leading said lifting lines connected to said second heavy element beyond one side of said second heavy element and also collect these with a lifting eye.

By joining the free end of the lifting lines with a lifting eye and leading the lifting eye and a part of each of the lifting lines over one side of each of the heavy elements in a stack of heavy elements, it is made possible that the lifting eye can be connected to a crane without of a chopper need to crawl on top of the element stack.

Furthermore, the invention relates to the use of safety bars according to any of the previously described safety bars as spacers between stacked heavy elements.

This achieves an advantageous implementation of the invention. — List of figures The invention is explained in more detail in the following with reference to the drawings, where fig. 1 shows a safety bar with flat iron locking elements, seen in perspective, fig. 2 shows a safety rod with integrated locking elements, seen in perspective,

DK 2021 00213 A1 7 fig. 3 shows a safety rod mounted above a first lifting device and a second lifting device, seen in perspective, and FIG. 4 shows a stack of heavy elements on the bed of a wagon, seen 1 perspective. — Detailed description Fig. 1 shows a safety bar 1 with flat iron locking elements 8, seen in perspective. In this embodiment, the safety rod 1 comprises a rod element 2 that is made of wood. In another embodiment, the rod element 2 could be made of plastic, stainless steel, aluminum or another material. Two notches 7 are formed in the first longitudinal side 3 of the rod element in this embodiment, but in another embodiment the rod element 2 could comprise one, three, four or more notches 7 depending on how the heavy elements the safety rod 1 — is to be used for are designed. In this embodiment, the two notches 7 are located at the same distance Al, FI from the ends of the rod element 2, so that the safety rod 1 is symmetrical and thus can be used at both ends of a heavy element.

In this embodiment, the safety rod 1 further comprises a locking element 8 which extends all the way across the notches 7 at the corner between the first longitudinal side 3 and the third longitudinal side 5 of the rod element 2. In this embodiment, the locking element 8 is a piece of flat iron which is bolted to — the rod element 2, but in another embodiment the locking element 8 could instead, or also comprise a stick, a wire, a strap or something else attached to the rod element 2. In this embodiment, the safety rod 1 is shaped with a rectangular cross-section where the first longitudinal side 3 is opposite the second longitudinal side 4, and — where the third longitudinal side 5 is opposite the fourth longitudinal side 6 and where all the sides are equal. However, in another embodiment, the security rod 1

DK 2021 00213 A1 8 be designed with several sides and/or one or more of the sides 3, 4, 5, 6 could be curved, inclined, round or otherwise. In this embodiment, the safety rod 1 is provided with visual elements 11 in the form of arrows indicating which way the safety rod 1 must face in order to be correctly mounted. These visual elements 11 could, for example, be made 1 signal colors so that it is easy for an operator to see if the safety rod 1 is correctly oriented. Fig. 2 shows a safety rod 1 with integrated locking elements 8, seen in perspective.

In this embodiment, the rod element 2 and the locking elements 8 are formed in one in a casting process. Fig. 3 shows a safety rod 1 mounted above a first lifting device 13 and a — second lifting device 14, seen in perspective In this embodiment, the lifting devices 13, 14 are designed as traditional lifting fittings that are hinged to the underlying heavy element (not shown) so that these can tilt. In another embodiment, the lifting devices 13, 14 could, however — be designed as traditional lifting eyes, as a ring coupling or something else. The safety rod 1 is positioned so that the lifting devices 13, 14 are arranged in the notches 7 and so that the lifting devices 13, 14 are completely enclosed by the rod element 2 and the locking element 8. This ensures that the safety rod 1 cannot — fall off during handling of the heavy element. Fig. 4 shows a stack of heavy elements 12 on the bed of a wagon, seen in perspective. In this embodiment, safety rods 1, 15, 16, 19, 20 are placed at the lifting devices 13, 14, 23, 24 at both ends of all the heavy elements 12, 17, 18 (as shown in Figure 3), so that safety bars 1, 15, 16, 19, 20 act as

DK 2021 00213 A1 9 spacers between the stacked heavy elements 12, 17, 18. This enables lifting lines 21 to be pre-mounted on all the lifting devices 13, 14, 23, 24 while stacking the heavy elements 12, 17, 18. These lifting lines 21 can then be assembled in a lifting eye 22, which is carried over the side of the respective heavy element 12 so that a hooker can attach a crane hook to this lifting eye 22 at the unloading location without this hooker having to climb onto the heavy elements 12, 17, 18. The first function of the safety rod 1 is to act as a distance or protection block for the elements and lifting devices as well as attachment gear during transport. The height of the safety rod 1 must be sufficiently high, so that chains and hooks can lie between the elements. The second function is to ensure that the lifting device and attachment equipment installed by the manufacturer do not get into inappropriate positions during transport or lifting. This is ensured by notches 7 and locking elements 8, which ensure that the lifting device remains in the correct position. The size of the notches 7 depends on — the size of the lifting device. The third function is to ensure that "loose objects in the air" do not occur under the ceiling of the element. This is ensured by means of the locking element

8. The safety rod 1 is locked around the lifting device 13, 14, 23, 24 and attachment tool during transport and lifting. The fourth function is to secure the chopper against danger by the safety rod 1 being turned the wrong way. This is done with — visual elements 11 e.g. in the form of arrows in luminous/bright colors indicating the direction of the safety rod 1. The arrows are located on the top and on both sides. The standard for arrow direction must be specified by industry. The safety rod 1 is removed when cutting off the workpiece.

> The new stacking method starts with the manufacturer attaching the safety rod 1 during production of the heavy elements 12. The elements 12 are then stacked and loaded onto a flat bed or semi-trailer. The truck arrives at the work site with elements 12, as outlined in figure 4. Here the safety bar 1 is seen lying on top of/between the elements 12, locked in their position. The lifting lines 21 hang down along the side of — the elements 12 and are gathered in a ring 22. The cutter can see the arrows on the safety rod 1, which ensures that the safety rod 1 is turned correctly. The chopper

DK 2021 00213 A1 10 stands on the ground and hooks the ring 22 to the crane hook. Recipients of the elements 12 cut off the lifting device and attachment tool after placement on/in the correct position. The safety rod can be clamped onto the attachment device and lifting device, and sent down to a possible container or similar, so that the lifting device and attachment tool can go — return to the manufacturer. The safety rod 1 functions as a distance list. The height of the safety rod 1 must be sufficiently high, so that the lifting device and chains can lie between the objects. The notches 7 must be designed in size according to the lifting device/device and have the purpose of ensuring the correct position during lifting and driving of/with the items. The purpose of the locking elements 8 is to ensure that the safety rod does not fall off during lifting or driving. The locking elements 8 can also be used to fasten the hooks around, for lifting the safety rod, when the elements 12 have been cut off and the safety rod must be returned. When the safety rod is positioned correctly, the locking elements 8 ensure that — the safety rod is clamped between the workpiece and the crane. The arrows on the safety rod 1 indicate which way the safety rod faces. If it is mounted incorrectly, the feller on site will be able to see it and refuse to lift. If safety rod 1 is turned the wrong way, it can be fatal for the chopper.

— Figure 4 shows an example of the safety rod 1 in use, upon arrival at the recipient. Cutters will be able to stand on the ground and cut the chains/rings for the crane's hook. Chains etc. is fastened while driving.

In the foregoing, the invention is described in connection with specific designs of rod elements 2, notch 7, locking elements 8 and other, as shown in the drawings, but it will be clear to a person skilled in the art that the invention can be varied in countless ways within the framework of the subsequent requirements.

DK 2021 00213 A1 11 List

1. Safety rod

2. Rod element

3. First longitudinal side

4. Second longitudinal side

5. Third longitudinal side

6. Fourth longitudinal side

7. Notches

8. Locking element

9. First notch

10. Second notch

11. Visual element

12. Heavy element

13. First lifting device

14. Other lifting device

15. First safety rod

16. Second safety rod

17. First heavy element

18. Second heavy element

19. Third safety rod

20. Fourth safety rod

21. Lifting line

22. Lifting eye

23. Third lifting device

24. Fourth lifting device FI. First undercut distance Al. Other notch spacing

Claims (10)

DK 2021 00213 A1 12 Requirements 1. A safety bar comprising a bar element (2) that includes a first longitudinal side (3) and a second longitudinal side (4), where said first longitudinal side (3) is opposite said second longitudinal side (4), where a third longitudinal side (5) and a fourth longitudinal side (6) extend longitudinally between said first longitudinal side (3) and said second longitudinal side (4) and where said third longitudinal side (5) is opposite said fourth longitudinal side (6) , one or more notches (7) in said first longitudinal side (3) of said rod element (2), where said notch (7) extends say all the way through said rod element (2) from said third longitudinal side (5) to said fourth longitudinal side (6), — characterized in that the safety rod (1) further comprises a locking element (8) which extends all the way across said notch (7) at a corner between said first longitudinal side (3) and said third longitudinal side (5) of said rod element ( 2). 2. A safety rod (1) according to claim 1, wherein said rod element (2) comprises a first notch (7, 9) located at a first notch distance (FI) from a first end of said rod element (2) and a second notch (7 , 10) located at a second notch distance (AT) from another end of said rod element (2), and where said first notch distance (FD) 1 is essentially equal to said second notch distance (AD. 3. A safety rod (1) according to claim 1 or 2, where said locking element (8) is rigidly connected to said rod element (2). — 4. A safety rod (1) according to claim 1 or 2, where said locking element (8) is an integral part of said rod element (2). DK 2021 00213 A1 13 5. A safety rod (1) according to any of the preceding claims, wherein said rod element (2) is made of wood or plastic and where said locking element (8) is made of flat iron. 6. A safety rod (1) according to any of the preceding claims, wherein said safety rod (1) comprises one or more visual elements (11) that indicate a correct mounting direction of said safety rod (1). 7. A method for handling heavy elements (12) each comprising at least a first lifting device (13) and a second lifting device (14) anchored in each of said heavy elements (12), where said method comprises the following steps: e placing a first safety rod (1, 15) according to any of the preceding claims on top of a first heavy element (12, 17) so that said first lifting device (13) of said first heavy element (12, 17) is arranged in the notch (7) of this safety rod, e places a second safety rod (1, 16) according to any of the preceding claims on top of said first heavy element (12, 17) so that said second lifting device (14) of said first heavy element (12, 17) is arranged in the notch of this safety rod ( 7), where the first longitudinal side (3) of said first safety rod (1, 15) and said second safety rod (1, 16) face each other and where the third longitudinal side (5) of said first safety rod (1, 15) and said second safety rod (1, 16) rests against said first heavy element (12, 17), e places a second heavy element (12, 18) on top of said first heavy element (12, 17) so that said second heavy element (12, 18) rests on said first safety rod (1, 15) and said second safety rod (1, 16), e places a third safety rod (1, 19) according to any of the preceding claims on top of said second heavy element (12, 18) so that said first DK 2021 00213 A1 14 lifting device (13) of said third safety rod (1, 19) is arranged in this safety rod's notch (7), e places a fourth safety rod (1, 20) according to any of the preceding claims on top of said second heavy element (12 , 18) so that said second lifting device (14) of said fourth safety rod (1, 20) is arranged in this safety rod's notch (7), where the first longitudinal side (3) of said third safety rod (1, 19) and said fourth safety rod (1, 20) face each other and where the third longitudinal side (5) of said third safety rod (1, 19) and said fourth safety rod (1, 20) rest against said second heavy element (12, 18). 8. A method according to claim 7, wherein the method further comprises connecting a lifting line (21) to each of said first lifting device (13) and second lifting device (14) on said first heavy element (12, 17) and connecting a lifting line — to each of said first lifting device (13) and second lifting device (14) on said second heavy element (12, 18). 9. A method according to claim 8, wherein the method further comprises lining said lifting lines (21) connected to said first heavy element (12, 17) beyond one side of said first heavy element (12, 17) and gathering these with a lifting eye (22) and guide said lifting lines (21) connected to said second heavy element (12, 18) beyond one side of said second heavy element (12, 18) and also collect these with a lifting eye (22). — 10. Use of safety bars (1) according to one or more of claims 1-6 as spacers between stacked heavy elements (12).