Modular system for suspension on a crane hook or a stop or a lashing point

Description

[0001] The invention relates to a modular system for suspension on a crane hook or an anchor point or a lashing point.

[0002] The current state of the art is that chain slings or chain suspension systems do not have any connectable elements. Instead, chain slings and their accessories are custom-made. Therefore, flexible use of these systems is either not possible or extremely limited.

[0003] Furthermore, it is state of the art that several suspension rings and / or intermediate links and / or different hooks and / or adapters must be used in order to achieve a coupling of different chain strands and / or hooks at all.

[0004] The patent application EP 3392525 A1 discloses a suspension ring designed in such a way that the load-bearing capacity is more easily recognizable for the user as a function of the angle of inclination (an angle that the chain strands form with an imaginary vertical line). Furthermore, it is shown that the chain links, i.e., the chain strands, are arranged directly on the suspension ring, which in turn causes a certain degree of inflexibility.

[0005] German patent application DE 20 2019 101 470 U1 discloses a shortening hook with a coupling connection for shortening lifting chains in slings. The coupling connection is designed as an eyelet, thus reducing flexibility. This prevents the use of the coupling hook shown here without appropriate tools or intermediate components that would have to be attached to the eyelet to enable coupling, for example, to a crane hook.

[0006] The document DE 696 22 88 1 T2 discloses a chain coupling arrangement with a closed ring link that can be coupled to a lifting device, such as a crane hook, and at least one chain coupling part with a shaft section that can be securely connected to the closed ring link, and with a chain coupling section that can be coupled to at least one lifting chain.

[0007] Furthermore, US patent 2008 / 0315 604 A1 discloses a lifting sling system for connecting various loads to a lifting hook, comprising a small number of combinable lifting sling units, each consisting of a number of pre-assembled parts. These units include at least one double lifting sling unit and no more than two single lifting sling units.

[0008] In the publication DE 101 64 595 A1, a hook with a fork head suitable for connecting a high-strength round steel chain is disclosed, the fork tines of which define an insertion gap, the width of which is equal to 1.05 to 1.3 times the thickness of the links of the round steel chain and which is bridged by a transverse bolt adapted to the inner width of the respective chain link to be connected, which is characterized in that the fork tines of the hook form an annular eyelet outside the area of ​​the insertion gap, the clear width (W2) of which is larger than the width (W1) of the insertion gap.

[0009] The subject of publication DE 101 49 340 A1 is a lifting device, in particular a shortening load hook, for chains, preferably round link chains. This lifting device has a hook and a shortening claw connected to the hook. This shortening claw divides the chain into a load strand and an associated chain bag, each of variable length.

[0010] In the publication EP 0 105 022 A2, a modular system, in particular for assembling lifting and / or lashing arrangements, is disclosed, on the one hand, consisting of straps of different load-bearing capacities and, on the other hand, consisting of components that can be connected to these by coupling elements, such as hooks, eyelets, shackles, clevises, shortening claws, connecting adapters or also straps, as well as tensioning and / or control devices also of different load-bearing capacities, characterized in that the coupling elements are designed as allocation elements for the straps and the components or straps or tensioning and / or control devices of the same load-bearing capacity.

[0011] The publication EP 3 392 525 A1 discloses a suspension ring for multi-strand suspensions, comprising two parallel straight legs connected at their respective ends by arcuate connecting legs, wherein the lower connecting leg is symmetrical to the longitudinal center line (MM) of the suspension ring and has a segmental circular curve in the central region of its extension and in the two regions where it joins each of the two legs, characterized in that the radii (r1, r2) of the curves on the inside of the suspension ring are smaller than half the inner width (B) of the suspension ring but larger than half the diameter (d) of the legs, and the segmental circular central region is connected at each of its ends to the segmental circular joining region in the adjacent legs via a straight intermediate section of the connecting leg, which is at an angle ( δ) is positioned at an angle of 50° to 75° to the longitudinal centerline (MM) of the suspension ring (1).

[0012] CN 205 151 514 U discloses a special lifting device for operating cast iron pipes on excavators. This document discloses the preamble of claim 1.

[0013] EP 3 392 525 A1 discloses a suspension ring for multi-strand suspensions.

[0014] A disadvantage of the prior art is that adapters or connecting links are required to attach the base segments, such as chains or straps, to the suspension ring. Adapters are particularly necessary when attaching four chain strands, as the prior art suspension rings are only designed to accommodate a maximum of two chain strands. The adapters manufactured for this purpose are tailored to the suspension ring and are not intended for extending (coupling) the chain strands. Description of the invention

[0015] The object of the invention is therefore to eliminate the disadvantages of the prior art and to provide a system for suspension from a crane hook, an anchor point, or a lashing point that is simple, flexible, and modular in its use and that allows for the provision of basic elements that can be easily combined with one another. Furthermore, it should be easy to assign the basic elements according to different loads.

[0016] This problem is solved by the features listed in the claims.

[0017] According to various embodiments, the modular arrangement for suspension from a crane hook, an anchor point, or a lashing point comprises the following components: a suspension ring, at least one coupling hook, and at least one base segment, wherein a load hook is arranged at one end of the base segment. The suspension ring of the modular arrangement is designed such that it can form a force-fit connection with the crane hook, the anchor point, or the lashing point and with the at least one coupling hook. The coupling hook has a bottom and a top, wherein the top has a coupling element designed to create a force-fit connection to the suspension ring, the crane hook, the anchor point, the lashing point, and / or the load hook of a base segment.The underside features a receiver designed to create a force-fit connection to at least one base segment. According to various embodiments, a base segment can be a chain segment, a belt segment, and / or a rope segment. A receiver can be, for example, a fork-shaped receiver for chain segments or an eyelet for belt and / or rope segments.

[0018] The suspension ring is designed to accommodate two to four coupling hooks, and according to the invention, the suspension ring is designed such that, when using two to four coupling hooks, an outer limit of a maximum permissible working angle of 60° is ensured. According to various embodiments, the suspension ring has a teardrop shape in cross-section with a semicircular underside, the semicircular underside having two opposing locking angles. ϕfor maximum engagement of the two to four coupling hooks. Furthermore, the suspension ring has a mounting point, for example a crane hook mounting point, which is located centrally on the opposite side of the underside.

[0019] According to various embodiments, the coupling element has a hook with a first locking element. The locking element, for example in the form of a snap, serves as a safety feature, preventing the hook from slipping out. The locking element or snap must be actively actuated to remove the coupling hook and release the connection to the suspension ring or load hook.

[0020] Preferably, the corresponding components (e.g., suspension ring, base segment, coupling hook) are dimensioned according to different loads to be lifted, pulled, and / or held. For example, there is a set consisting of a suspension ring, base chain segment, and / or coupling hook for lighter loads, and a set (again consisting of a suspension ring, base chain segment, and / or coupling hook) for heavier loads.

[0021] To differentiate between the various sets and facilitate faster assignment, the different sets can be coded, for example, using a color code. For instance, a first set for a lower load in a single strand, up to 1000 kg, is purple. A second set, which can be used for loads up to 2000 kg in a single strand, is green.

[0022] Preferably, the underside of the coupling hook has a shortener, for example, a chain shortener. This allows different lengths of chain strands, rope strands, and / or webbing strands to be set. For example, with a base chain segment length of 1 m, a chain strand length of 20 cm to 1 m can be set. According to various embodiments, the shortener can also include a locking element.

[0023] An advantage of the arrangement according to the invention is the simple connection of several base chain segments to form a long chain strand. Only one suspension ring is required to attach this chain strand to the crane hook. The coupling hooks provide a secure and easy-to-make connection to chain strands and between the base chain segments themselves.

[0024] According to the invention, the various elements for lifting, holding, and / or pulling objects with a crane or other lifting or lashing points can be easily combined. Special tools, such as hammers, screw blocks, and / or punches, are not required.

[0025] Likewise, no pre-assembly by the manufacturer is necessary. For example, pre-assembly of a suspension ring on the coupling hook or pre-assembly of a coupling point on a chain base segment is not required. No manufacturer-specific measures are necessary to ensure a secure coupling. All elements are manufactured, sold, and delivered separately. Furthermore, there is no need to search for suitable elements. Only a suspension ring, at least one coupling hook, and base chain segments are required. The length of the chain strands can therefore be selected as desired. Only the sorting of the elements of the arrangement according to the invention is necessary for the load to be lifted. However, the color coding makes it very easy to select the appropriate chain base segments, crane hooks, and / or coupling hooks for the specific loads.

[0026] A further advantage is that no adapters or connecting links are required to attach the base segments, such as chains or straps, to the suspension ring. This is particularly advantageous when attaching four chain segments, as no adapters are necessary because, unlike prior art suspension rings designed for a maximum of two chain segments, the suspension ring presented here accommodates more than two base segments. No adapters are needed to accommodate more than two base segments. The coupling hook for connecting to a suspension ring and / or to a load hook of a base segment is designed to allow for the coupling or extension of multiple base segments. Extension is achieved by coupling the coupling element to the load hook of a first base segment and by coupling a further base segment to the receiver of the coupling hook. Implementation of the invention

[0027] The invention will be explained in more detail using one or more exemplary embodiments. For this purpose, we will show... Figure 1: Illustration of a suspension ring. Figure 2: Illustration of a coupling hook.

[0028] The description refers to the accompanying drawings, which illustrate specific embodiments in which the arrangement according to the invention can be implemented. In this respect, directional terminology such as "top," "bottom," etc., is used with reference to the orientation of the described drawings. This directional terminology serves for illustrative purposes and is in no way restrictive.

[0029] It is understood that other embodiments may be used and structural or logical modifications made without deviating from the scope of protection of the present invention. It is understood that the features of the various exemplary embodiments described herein may be combined with one another, unless specifically stated otherwise. The following detailed description is therefore not to be interpreted as restrictive, and the scope of protection of the present invention is defined by the appended claims.

[0030] In the figures, identical or similar elements are provided with identical reference symbols where appropriate.

[0031] According to various embodiments, the modular system according to the invention has the following components: a suspension ring 3, at least one coupling hook 4 with receiver 44 and at least one base segment 5 with load hook 51.

[0032] The suspension ring 3 is designed according to various embodiments such that it forms a force-fit connection with a crane hook 2 or an anchor point or a lashing point and with at least one coupling hook 4.

[0033] The coupling hook 4 has a bottom surface 41 and a top surface 42, wherein the top surface 42 has a coupling element 43 which is designed to create a force-fit connection to the suspension ring 3, the crane hook 2, the anchor point, the lashing point and / or the load hook 51 of a base segment 5, and wherein the bottom surface 41 has a receiver 44 which is designed to create a force-fit connection to at least one base segment (5).

[0034] According to various embodiments, a base segment 5 is a chain segment, a rope segment and / or a belt segment.

[0035] According to various embodiments, the receiver 44 is a fork receiver or an eyelet.

[0036] According to various embodiments, the suspension ring 3 is designed to accommodate two to four coupling hooks 4, wherein the suspension ring 3 is designed such that, when using two to four coupling hooks 4, an outer limit of a maximum permissible working angle of 60° is ensured. As in Figure 1 The suspension ring 3 is shown in cross-section as having a teardrop shape with a semicircular underside 31 with two opposing locking angles. ϕ for maximum locking of the two to four coupling hooks 4 and a mounting point 32.

[0037] According to various embodiments, the coupling element 43 of the coupling hook 4 has a hook 431 with a first locking element 432. The hook 431 enables the coupling hook 4 to be coupled to the suspension ring 3 or to the load hook 51. Furthermore, the underside 41 of the coupling hook 4 preferably has a shortener 45.

[0038] According to various embodiments, the components (suspension ring, coupling hook and / or base chain segment) are dimensioned according to different loads to be lifted, pulled and / or secured. For faster assembly of the correct set for the load to be lifted, the modular system can feature color coding indicating suitability for a given load.

[0039] A coupling hook 4 according to the invention is in Figure 2The at least one coupling hook 4 is designed such that it forms a force-fit connection with the suspension ring 3, with the at least one base segment 5, and / or with the load hook 51 of the at least one base segment 5. The coupling hook 4 has a bottom surface 41 and a top surface 42, wherein the top surface 41 has a coupling element 43 designed to create a connection to the crane hook, the lifting point, the lashing point, and / or the load hook 51 of a base segment 5, and wherein the bottom surface 41 has a receiver 44, for example, as shown here, a fork receiver for receiving chains. Furthermore, the coupling hook can have a shortener 45, for example, as shown here, a chain shortener. Reference sign

[0040] 1 Modular suspension system 2 Crane hook or anchor point or lashing point 3 Suspension ring 31 Semi-circular underside of the suspension ring 32 Mounting point / crane mounting point 4 coupling hooks / coupling hooks 5 base segment / chain segment / strap segment / base chain segment 51 load hooks

Claims

1. Modular suspension system (1) for attachment to a crane hook (2) or an anchoring point or a lashing point, comprising the following basic components: - a suspension ring (3), - at least one coupling hook (4), - at least one base segment (5) with a load hook (51), wherein the suspension ring (3) is configured to form a frictional connection with the crane hook (2) or the anchoring point or the lashing point and with the at least one coupling hook (4), wherein the coupling hook (4) comprises a lower side (41) and an upper side (42), the upper side (42) comprising a coupling element (43) configured to create a frictional connection to the suspension ring (3), to the crane hook (2), to the anchoring point, to the lashing point and / or to the load hook (51) of a base segment (5), and wherein the lower side (41) comprises a receiver (44) configured to create a frictional connection to the at least one base segment (5), wherein the suspension ring (3) is configured to receive two to four coupling hooks (4), characterized in that the suspension ring (3) is configured such that, when two to four coupling hooks (4) are used, an outer limit of a maximum permissible working angle of 60° is ensured, the suspension ring (3) having for this purpose a teardrop-shaped cross-section with a semicircular underside (31) with two opposite locking angles ϕ for maximum locking of the two to four coupling hooks (4) and a receiving point (32).

2. Modular system according to claim 1, characterized in that the coupling element (43) is a hook (431) or a hook (431) with a first securing element (432).

3. Modular system according to one of claims 1 or 2, characterized in that the basic components are dimensioned according to various loads to be lifted, secured and / or pulled.

4. Modular system according to claim 3, further comprising a color coding indicating the suitability for a load.

5. Modular system according to one of the preceding claims, characterized in that the lower side (41) of the coupling hook (4) comprises a shortener (45).

6. Modular system according to one of the preceding claims, characterized in that the shortener (45) comprises a second securing element.

7. Modular system according to one of the preceding claims, characterized in that the receiver (44) is a fork receiver or an eyelet.

8. Modular system according to one of the preceding claims, characterized in that the at least one base segment (5) is a chain segment and / or a strap segment.