Coupling stone element for a capsize shackle for anchor chains formed from two interlocking half-elements

Abstract

A coupling element (20') for a capsize shackle for anchor chains formed from two nested half-elements (10) has at least one slidable locking element (22) on opposite sides of a housing (21'), the outwardly projecting end (22.1) of which is designed to engage in a locking element receptacle on an inner flank of the half-elements. Both locking elements (22) are slidably outwards by means of a common eccentric bolt (24'), which is rotatably arranged in a central bore in the housing and has a non-rotationally symmetrical cross-section in a region adjacent to the locking element guide bores. A locking element (29') is arranged on the eccentric bolt (24'), which is guided and / or lockable in a locking guide track, which comprises at least one locking receptacle (36', 37') and an arc groove (27') covering or adjoining it.By axially displacing the eccentric bolt (24'), the locking bolt (29) can be moved out of the locking receptacles (36', 37') and into the arc groove (27'), and vice versa. A cover plate (30') is attached to the housing (21'), which has a head receptacle (31') for the passage of a head (24.1) of the eccentric bolt (24). The locking receptacles (36', 37') and the arc groove (27') are formed in the rear of the cover (30').

Description

[0001] The invention relates to a coupling element for a capsize shackle for anchor chains formed from two interlocking half-elements, having the features of the preamble of claim 1.

[0002] Such a coupling block element is known from WO2017 / 186236A1. The coupling block element, inserted between the half-elements, is reliably locked by the two locking elements, which can be moved in opposite directions. A disadvantage is that the expanding element is secured in the housing by a thread. To install the coupling block element, the expanding element must first be screwed into the housing by many rotations, which, given the dimensions of such capsize shackles and the tools required, is time-consuming and laborious. If the thread becomes seized, for example, under the influence of sand and seawater, non-destructive disassembly of the coupling block element is no longer possible.

[0003] A coupling element according to DE 10 2024 101 943 A1 is significantly optimized with regard to facilitating assembly and disassembly, as well as for safety against unintentional changes from a locked to an unlocked position. This is achieved through a bolt guide system that limits the pivoting movement of the internal bolt element and automatically secures its position in each of the two end positions with a positive locking mechanism.

[0004] The disadvantage of the latter coupling element lies solely in the complex manufacturing of the bolt guide system, because the guide track and the bolt receptacles are each undercut recesses that have to be manufactured starting from the bore in the housing provided for the eccentric bolt head.

[0005] The object of the invention is therefore to facilitate the manufacturing of the coupling stone element.

[0006] This problem is solved by a coupling element with the features of claim 1.

[0007] The advantage lies in the fact that the bolt receptacles for the bolt and the bolt guide track can be manufactured on exposed surfaces by producing the housing and cover plate separately. After assembling these parts, the bolt guide system is also fully manufactured.

[0008] The bolt guide track, which defines and limits the pivoting movement of the eccentric bolt and essentially consists of an arc-shaped groove with bolt receptacles, is machined either into the side surface of the housing or the back of the cover, or a portion of the groove's height is machined into both adjacent surfaces. In all cases, the groove or partial groove on the exposed surfaces is easy to manufacture.

[0009] The separating plane between the housing, which accommodates the eccentric bolt and the locking elements, and the cover plate that can be inserted therein, is preferably selected such that either the bolt receptacles for the bolt element or the arc groove are completely incorporated into the back of the cover or on the side surface of the housing to be covered by the cover.

[0010] It is advantageous if the locking mechanism receptacles for the locking element are incorporated on the back of the cover, as they can then connect directly to the head recess for the head of the eccentric bolt.

[0011] Preferably, the curved groove is fully integrated into the housing. This reduces the weakening of the lid or allows the lid to be designed with a lower height.

[0012] To axially fix the eccentric bolt, it is pre-tensioned by at least one spring element acting between the eccentric bolt and the housing, preferably such that it tends to be pushed out of the housing. Simultaneously, a locking element projecting radially beyond the eccentric bolt is provided, which engages in a locking guide track formed at the edge of the central bore of the housing. For the rotational movements necessary for locking and unlocking, the locking element is guided in the arcuate groove of the locking guide track, thereby axially fixing the eccentric bolt.

[0013] It is intended that the axial preload, provided by at least one spring, is used to axially advance the locking element out of the groove in the end positions intended for locking and unlocking, so that in these positions the locking element engages in a locking receptacle connected to the groove. For the next movement, the eccentric bolt must then first be moved axially into the housing against the force of the spring before it can be rotated again.

[0014] A reverse arrangement is also possible, in which the arc groove is positioned further outwards and the bolt receptacle further inwards with respect to the central bore. In this case, the eccentric bolt must be subjected to a spring force so that it is pressed into the central bore. This requires either a tension spring at the bottom of the central bore or a compression spring in the area of ​​the dividing line between the housing side surface and the cover plate.

[0015] One embodiment of the invention provides that the cover is held in retaining grooves in the housing by means of a dovetail guide. The cover plate, inserted into the receptacle with the retaining grooves, is secured against unintentional ejection, for example, by a screw. The advantage is that the cover cannot fall out even if the securing screw is lost, since the retaining grooves open to one side, which is blocked by adjacent surfaces of the half-elements when the capstan shackle is mounted. In this case, a bolt insertion opening is provided for inserting the eccentric bolt after the cover has been attached. This opening extends axially through the cover into the interior of the housing and terminates in the arcuate groove of the bolt guide track. The bolt insertion opening must be manually sealed afterward.

[0016] Another embodiment of the invention provides that the cover is placed on a side surface of the housing, in particular inserted into a recess, and screwed to the housing. In this embodiment, no bolt insertion opening is necessary. The eccentric bolt with the locking element is inserted into the housing before the cover is placed on top.

[0017] In addition to the advantages of the invention in the design of the head of the eccentric bolt and its guide track, the advantageous functionality of the known locking mechanism remains: To lock and unlock the locking elements, the eccentric bolt only needs to be rotated by a maximum of 180°, and in particular by only 90°. During locking, the inner rounded base bodies of the locking elements are moved away from the eccentric surfaces on the eccentric bolt and brought into contact with the cylindrical outer surface of the eccentric bolt. This pushes the locking elements outwards and simultaneously secures them positively. Unlocking is accomplished by the reverse movement: the eccentric bolt is rotated, and the locking elements, assisted by inserted springs, can move from the outer surface back onto the eccentric surfaces.

[0018] The eccentric surfaces are formed by the fact that the eccentric bolt has a non-rotationally symmetrical cross-section in an area adjacent to the locking element guide bores of the locking elements.

[0019] The design stipulates that the central bore is a blind hole, and that the eccentric bolt can be inserted into the central bore against the force of at least one spring element in an inserted position. This has the advantage that one side of the eccentric bolt no longer needs to be sealed against the housing and that the eccentric bolt is not permanently connected to its locking element by corrosion. Rather, the spring element in the blind hole, in particular a spring element positioned at the bottom of the blind hole, ensures that the eccentric bolt is pushed out of the blind hole when it has previously been rotated into the unlocked position.

[0020] An advantageous embodiment provides two parallel eccentric surfaces on the eccentric bolt, arranged at the same distance from the axis of rotation. This allows both locking elements to move simultaneously and, if they are of equal length, to engage simultaneously in their receptacles on the half-elements of the anti-capsize shackle.

[0021] Alternatively, the eccentric surfaces can be tilted relative to each other or arranged in a concave or convex shape. This allows for simple sequential control of the locking element movement. With the same rotation of the eccentric bolt, one locking element is extended and reaches its receptacle earlier than the other. This can be advantageous because one locking element is already aligned by engaging its corresponding recess on the shackle, while the other is still moving towards its receptacle. This design is also advantageous if the locking elements have become stuck in their bores due to corrosion or similar causes, as the entire torque applied to the eccentric bolt acts on only one locking element at a time, and the resulting forces are not distributed between two locking elements.

[0022] A complete capsize shackle for anchor chains is obtained by inserting a coupling element according to the invention between two nested half-elements, each half-element having a short leg with a profiled structure at its end and a long leg with a receiving chamber for this structure. Such a capsize shackle has identical curves on both sides and can therefore be passed through an anchor winch like a chain link.

[0023] The coupling element of the invention can also be part of an anchor-capsize shackle, which likewise comprises two nested half-elements, each with a short leg featuring a profiled structure at its end and a long leg with a receiving chamber for this structure. An anchor-capsize shackle has different curves on both sides. One side is slightly pointed, forms the end of a chain, and is therefore adapted to the curves of the chain links. The other side, which serves for connection to a larger element such as an anchor, is arc-shaped and has a larger eye.

[0024] The coupling stone element is inserted between the half-elements at a right angle to the joining direction, so that they can no longer separate from each other.

[0025] The coupling stone element is positively connected to the half-elements via the locking elements. Furthermore, it is advantageous to additionally profile the two opposing inner flanks of the half-elements, between which the coupling stone element is inserted, and the adjacent outer surfaces of the coupling stone element, in order to achieve a positive-locking guidance.

[0026] For example, it can be provided that raised surfaces are formed on projections on the inner flanks and complementary recesses on the coupling stone element. This ensures that the coupling stone element is guided positively against the edges of the projections and, in its intended final position between the legs, blocks any relative movement between the two half-elements.

[0027] To counteract the ingress of sand, salt water or organisms such as barnacles and to prevent the eccentric bolt from seizing due to the action of such factors, it is particularly provided that both the eccentric bolt and the locking elements are each sealed against the housing by at least one sealing ring.

[0028] The invention is explained in more detail below with reference to the exemplary embodiments shown in the drawings. The figures show in detail: Fig. 1. A partially disassembled capsize shackle in a perspective view; Fig. 2 a mounted capsize shackle with the coupling stone element in longitudinal section; Fig. 3 the coupling stone element in a perspective view; Fig. 4 a locking system of a coupling stone element, in perspective view; Fig. 5 the locking system after Fig. 4 in cross-section; Fig. 6 a perspective longitudinal section of the coupling stone element in unlocked position; Fig. 7 a perspective longitudinal section of the coupling stone element in locking position; Fig. 8 a perspective longitudinal section through the coupling stone element in the locking position; Fig. 9 a perspective view from behind of the back of the lid and the locking system; Fig. 10 a perspective view of the housing with the cover plate removed from the front; Fig. 11 a perspective sectional view of the casing. Fig. 12 a second embodiment of a coupling stone element in a perspective view; Fig. 13 a perspective sectional view of the casing and Fig. 14 a perspective view from behind of the back of the lid and the locking system

[0029] Fig. Figure 1 shows a perspective view of a partially disassembled capsize shackle 100, which consists of two interlocking half-elements 10 and a coupling stone element 20; only one of the identical half-elements 10 is shown here.

[0030] The half-element 10 has the shape of a "J" in a side view. It has a short leg 11, at the end of which a profile structure 13 with bead-like projections and intervening depressions is formed, and a long leg 12, which extends along a vertical central axis to below the profile structure 13 of the short leg 11.

[0031] The long leg 12 incorporates a receiving chamber 14 for the profile structure 13 of the short leg on the other half-element. The convex profile structure 13 on the outside of the short leg 11 and a complementary, concave profile structure inside the receiving chamber 14 of the long leg 12 are designed such that the short leg 11 can be inserted into the receiving chamber 14 from the side. The interlocking half-elements 10 form a closed shackle body with an oval base shape.

[0032] The legs 11, 12 are not completely flat on their inner flanks 18, but have a slightly raised surface 15 there. The raised surfaces 15 on the opposite legs 11, 12 are parallel to each other.

[0033] To prevent the two interlocking half-elements 10 from separating, a coupling element 20 is inserted between them. This is inserted at a right angle to the joining direction of the half-elements 10. It is guided in a form-fitting manner against edges 16 of the raised surface 15.

[0034] To secure the coupling element 20 in its final position within the shackle body formed by two half-elements 11, locking elements with a hemispherical end 22.1 are pushed out of a housing of the coupling element 20. The ends 22.1 engage in locking element receptacles 17 on the inner surfaces of the half-elements 10. This secures the coupling element 20 against displacement and also provides a positive locking connection between the half-elements 10 in the third dimension.

[0035] In the exemplary embodiment, the locking element receptacles 17 are divided in half, since they are formed in the edge area at the transition between the projection 15 and the receiving chamber 14 on the long leg 12 and at the transition between the projection 15 and the profile structure 13 on the short leg 11.

[0036] Fig. Figure 2 shows a fully assembled capsize shackle 100 in section, the cutting plane being parallel to the longitudinal axis but slightly offset to the outside in order to cut one of the two locking elements 22 in the coupling stone element 20.

[0037] The two half-elements 10 interlock positively by means of the profile structures 13 on the respective short legs 11 engaging in the receiving chambers 14 on the long legs 12. The two facing inner flanks 17 of the shackle body formed by the connected half-elements 10 transition at the edges 16 into the raised surface 15 formed jointly by both half-elements 11. A locking element receptacle 17 is formed precisely at the dividing plane between the half-elements 10.

[0038] The coupling stone element 20 is inserted between the inner flanks 18. It is positively locked in the longitudinal direction by the edges 16. Transversely, it is secured by the engagement of the projections 22.1 in the locking element receptacles 17.

[0039] Fig. Figure 3 shows the coupling element 20 in a perspective view. Two locking elements are inserted in the housing 21, the hemispherical projection 22.1 of which points outwards. Fig. The projection 22.1 of one of the locking elements is visible on the right in the illustration. Cover discs 23 are connected to the housing 21, through whose bore the projection 22.1 can be pushed out and against which a larger diameter base body of the locking element is positively retained.

[0040] A cover plate 30 is arranged on another side surface of the housing 21 and is held in retaining grooves 21.4 in the housing by means of a dovetail guide 33. The retaining grooves 21.4 extend transversely to the central axis of the eccentric bolt, of which only the head 24.1 is visible here. The top surface of the cover plate 30 is flush with a side surface of the housing 21, as is a rear limiting edge of the cover plate 30. The cover plate 30, inserted into the receptacle 21.4, is secured against unintentional displacement by a screw 34.

[0041] The purpose of the cover 30 is to hold an eccentric bolt located inside the housing, by means of which the locking elements can be pushed out of the housing 21, and at the same time to allow actuation by rotation from the outside of the coupling block element 20. For this purpose, a head 24.1 of the eccentric bolt rests in a head receptacle 31 in the cover 30. The head receptacle 31 is essentially a cylindrical through-bore which is enlarged by a radial bolt insertion opening 32.

[0042] The head 24.1 has a square drive recess 24.10 in its center, allowing a tool to be inserted that rotates the eccentric bolt inside the coupling element 20. A line marking 24.11 indicates the outward position of the eccentric bolt.

[0043] The cover 30 has a bolt insertion opening 32 to guide the eccentric bolt, which has a radially projecting locking element, from the end face of the housing 21 into an internal locking receptacle. After the eccentric bolt 24 has been inserted into the housing 21, the bolt insertion opening 27.1 is sealed watertight by a rubber stopper and / or a grease filling.

[0044] Fig. Figure 4 shows a locking system as part of the coupling element. The locking system comprises an eccentric bolt 24 and two locking elements 22.

[0045] The eccentric bolt 24 has a head 24.1 with an enlarged diameter and two eccentric bolt sections 24.2, 24.5, over which the two locking elements 22 are axially displaceable. The head 24.1 has at least one groove 24.8 on its outer circumference for receiving at least one sealing ring. The eccentric bolt 24 has an end shoulder 24.9 at one end opposite the head 24.1, which is provided for positioning a spring element on the end face. The end shoulder 24.9 is designed to be short so that the entire eccentric bolt 24 can be received in a blind bore of a housing of the coupling element 20.

[0046] The eccentric bolt sections 24.2, 24.5 are strongly rounded before transitioning into contact surfaces 24.3, 24.6, on which the convex end regions of the locking elements 22 are supported when the unlocking position of the coupling block element is set.

[0047] Further paragraphs 24.4 and 24.7, together with the final paragraph 24.9, serve to support the eccentric bolt 24 in the housing. In paragraph 24.7, a locking element 29 is integrally formed or attached behind the head 24.1. This engages in a locking guide track in the housing to limit the rotation angle of the eccentric bolt 24 and / or to positively lock the eccentric bolt 24 in the intended end positions.

[0048] The locking elements 22 each have projections 22.1 with a groove 22.3 for receiving a sealing ring and an end section 22.2 with a diameter that is larger than the diameter of the projections 22.1.

[0049] In Fig. 5 is a cross-section through the previously in Fig. Figure 4 illustrates the locking system. This clearly shows the position of the eccentric bolt section 24.5 in relation to the axis of rotation of the eccentric bolt 24 and how its cross-sectional shape, which deviates from the circular shape indicated by the dashed line, was designed. It is also visible that the convex ends of the locking elements 22 are flattened in the center.

[0050] In the Fig. In the unlocking position shown in Figure 5, in which the locking elements 22 are completely inside the housing, the locking elements 22 each rest with their flattened area on the flat contact surface 24.6.

[0051] Fig. Figure 6 shows a perspective longitudinal section through the coupling element 20 in the unlocked position. A spring 26 is mounted on a shoulder of each locking element 22, pressing the locking element 22 away from the cover plate 23 and maintaining contact with the respective eccentric bolt section 24.2, 24.5. A sealing ring 22.4 is inserted into each of the grooves 22.3.

[0052] A central bore 21.1 in the housing 21 terminates in a blind hole. The end section 24.9 of the eccentric bolt 24 is mounted there and supported on the housing 21 by a spring 28 or a set of springs. This allows the head 24.1 to be flush with the outside of the housing 21. Furthermore, it ensures a permanent preload on the eccentric bolt 24 towards the opening of the central bore 21.1 on the surface. Fig. 13 given on the left side.

[0053] In the illustrated embodiment, the possible movements of the eccentric bolt 24 relative to the housing 21 are limited by a positive locking mechanism, in that the eccentric bolt 24 is guided via its locking element 29 and a locking guide cam formed partly in the cover 30 and partly in the adjacent housing surface.

[0054] Fig. 7 shows one to Fig. 13 analogous representation, with the difference that the eccentric bolt 24 has been rotated by about 90°, so that the locking elements 22 have been pushed outwards over the eccentric bolt sections 24.2, 24.5 and are now in the locking position and their heads protrude over the cover discs 23.

[0055] Fig. Figure 8 shows a perspective longitudinal section through the coupling element 20 in the locked position, looking towards the side of the housing 21 where the cover 30 is inserted. It is visible that the head 24.1 of the eccentric bolt 24 has a groove on its outer circumference for receiving a sealing ring, thus preventing the ingress of water, especially salt water, through the gap between the head 24.1 and the cover plate 30. A gap 35 remains between the underside of the head 24.1 and the adjacent part of the housing 21, which allows the eccentric bolt 24 to be pressed deeper into the housing 21 against the force of a spring 28 on an end shoulder. At the bottom of the head 24.1, the section plane passes through a locking receptacle 37 in the cover 30, into which a locking element on the eccentric bolt 24 can engage.

[0056] Fig. Figure 9 is a perspective view from the rear of the cover 30 and the locking system with eccentric bolt 24 and locking bolt 22. The housing is removed in this view. Two integrated locking receptacles 36, 37 are visible in the underside of the cover 30.

[0057] A radially spreading locking element 29 is provided on the eccentric bolt 24, which engages in the locking receptacle 36 and thus determines the position of the eccentric bolt 24 in the Fig. The locking position shown in Figure 4 is locked. A further locking receptacle 37 serves to receive the locking element 29 in the unlocked position. In order to move the locking element 29 from one position to the other, the eccentric bolt 24 must be axially displaced against the force of the spring 28. Only in this way can the locking element 29 be moved out of the locking receptacle 36. The locking receptacles 36 and 37 can be easily manufactured on the back of the cover 30.

[0058] Fig. Figure 10 is a perspective view of the housing 21 from the front, with the cover plate removed. This reveals an arc groove 27 in the housing, which, together with the bolt receptacles 36, 37 in the cover 30, forms a bolt guide track. This track determines the possible positions and travels of the bolt element 29 and, consequently, the pivot angle of the eccentric bolt 24. The arc groove 27 can be easily milled into the housing 21, as a side surface 21.5 is exposed when the cover is removed.

[0059] In Fig. 11 is the coupling stone element 20 in a similar perspective as in Fig. Figure 3 shows a section plane running slightly below the housing side surface, so that the height of the cover 30 is approximately halved. This reveals the bolt guide track for the bolt element 29, which comprises: - the locking receptacles 36, 37 on the back of the cover 30 - the bolt insertion opening 32, which extends from the outside to the inside through the cover 30 and - the arc groove 27 in the housing 21.

[0060] Fig. Figure 12 shows a further embodiment of a coupling stone element 20' in a perspective view. Parts identical to the first embodiment of the coupling stone element 20 have the same reference numerals.

[0061] As in the first embodiment, two locking elements are inserted in the housing 21', the hemispherical projections 22.1 of which each point outwards. Cover discs 23 are connected to the housing 21'. The projection 22.1 can be pushed out through the bore in these discs. A larger diameter base body of the locking element is positively engaged by this projection.

[0062] A cover plate 30' is arranged on another side surface of the housing 21', and is positioned in a recess 21.4'. The top surface of the cover plate 30' is flush with a side surface of the housing 21', as is a limiting edge of the cover plate 30', which is located in Fig. 12 lies open on the right. The cover 30' is held to the housing 21' by screws 34', 38'.

[0063] The purpose of the cover 30' is, again, to hold the eccentric bolt located inside the housing 21', by means of which the locking elements are to be pushed out of the housing 21', within the housing and at the same time to prevent unintentional unlocking by turning the eccentric bolt. For this purpose, a head 24.1 of the eccentric bolt rests in a head receptacle 31' in the cover 30'. The head receptacle 31' is essentially a cylindrical through-bore that is enlarged by a radial bolt insertion opening 32. An O-ring, not visible, is fitted onto the head 24.1 to create a seal between the head 24.1 and the head receptacle 31'.

[0064] The head 24.1 has a square recess in its center, serving as a drive recess 24.10, to accommodate a tool that rotates the eccentric bolt inside the coupling stone element 20'. A line marking 24.11 indicates the outward position of the eccentric bolt.

[0065] In this embodiment, unlike in the embodiment according to the Fig. No bolt insertion opening is necessary for the eccentric bolt, which has a radially projecting locking element, to be guided from the end face of the housing 21 into an internal locking receptacle. This is achieved by inserting the cover 30' with its head recess 31' into the recess 21.4' on the housing 21' in the axial direction of the eccentric bolt. The locking element necessary for axially securing the eccentric bolt is located between the housing 21' and the cover 30', thus securing the eccentric bolt.

[0066] In Fig. 13 is the coupling stone element 20' in a similar perspective as in Fig. 12 shown. A section plane runs slightly below the side surface of the housing, along which in Fig. 12 marked section line S, so that the height of the cover 30' is approximately halved. This reveals a bolt guide track for the bolt element 29 on the eccentric bolt 24', which includes bolt receptacles 36, 37 that are provided on the rear of the cover 30', as well as an arc groove 27' in the housing 21'. Compared to the first embodiment (see Fig. 11) The bolt guide track with the bolt receptacles 36, 37 and the arc groove 27 has been displaced by a clockwise rotation of 45°. Since no bolt insertion opening is required at the same time, sufficient space has been created for the additional screws 38'. On the side where the screws 38' are located, the installation space is restricted because the second locking bolt element, concealed here, is positioned closer to the housing side provided with the cover 30'.

[0067] Fig. Figure 14 is a perspective view from the rear of the back of the cover 30' and of the locking system with the eccentric bolt 24' and the two locking bolts 22. The housing is removed in this view. The two integrated locking receptacles 36', 37' are visible on the underside of the cover 30.

[0068] The only difference between the eccentric bolt 24' and the one in Fig. The difference in the eccentric bolt shown in Figure 9 is that the radially spread locking element 29 is mounted offset by 45°. The locking element 29 engages in the locking receptacle 36 and thus locks the position of the eccentric bolt 24' in the locked position (see Figure 9). Fig.4) A further bolt receptacle 37' serves to receive the bolt element 29 in the unlocked position. In order to move the bolt element 29 from one position to the other, the eccentric bolt 24' must be axially displaced against the force of the spring 28. Only in this way can the bolt element 29 be moved out of one of the bolt receptacles 36', 37' into the arc groove 27', thus enabling a pivoting movement. The bolt receptacles 36', 37' can be easily machined on the rear of the cover 30'. They extend from the head recess 31'. Similarly, the arc groove 27' can be easily machined on the housing, as it lies open in the recess 21.4 when the cover 30' is removed. Reference symbol: 100 capsize shackles 10 half-elements 11 short thigh 12 long thigh 13 Profile structure 14 Admission chamber 15 excessive area 16 edge 17 Locking element receptacle 18 inner flanks 20; 20' coupling stone element 21; 21' case 21.1 Central bore 21.2 Locking element guide bore 21.3 Recess on the housing 21.4 Holding grooves 21.4' In-depth study 21.5 Initial section 21.6 Side surface 22 locking elements 22.1 Protrusions 22.2 Basic body 22.3 Nut 22.4 Sealing ring 23 Cover plate 24; 24' Eccentric bolt 24.1 Head 24.2, 24.5 Eccentric bolt sections 24.3, 24.6 Contact surfaces 24.4, 24.7 Stock sales 24.8 Nut 24.9 Final section 24.10 Drive recess 26 springs 27; 27' Bow groove 28 springs 29 bar element 30; 30' Cover plate 31; 31' Headshot 32 bolt insertion opening 33 Dovetail guide 34; 34' screw 35 gap 36, 37; 36', 37' Bar recordings 38' screws QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] WO 2017 / 186236A1

[0002] DE 10 2024 101 943 A1

[0003]

Claims

[1] Coupling stone element (20; 20') for a capsize shackle (100) for anchor chains formed from two interlocking half-elements (10), wherein the coupling stone element (20; 20') can be inserted between the interlocking half-elements (10), and wherein: - on opposite sides of a housing (21; 21') at least one locking element (22) is arranged which is slidable in a locking element guide bore (21.2) and whose outwardly protruding end (22.1) is designed to engage in a locking element receptacle (17) on an inner flank (18) of the half-elements (10), - both locking elements (22) are displaceable outwards by means of a common eccentric bolt (24; 24'), which is rotatably arranged in a central bore (21.1) in the housing (21; 21') oriented transversely to the locking element guide bores (21.2) of the locking elements (22) and which has a non-rotationally symmetrical cross-section at least in an area adjacent to the locking element guide bores (21.2), - at least one radially projecting locking element (29) is arranged on the eccentric bolt (24; 24'), which is guided and / or can be fixed in a locking guide track, which comprises at least one locking receptacle (36, 37; 36', 37') and an arc groove (27; 27') covering or adjoining it, and wherein - by axial displacement of the eccentric bolt (24; 24') the locking bolts (29) can be moved out of the locking receptacles (36, 37; 36', 37') into the arc groove (27; 27') and vice versa; characterized by , - that a cover plate (30; 30') is attached to the housing (21; 21') which has a head receptacle (31; 31') for passing a head (24.1) of the eccentric bolt (24; 24'), - that at least one locking receptacle (36, 37; 36', 37') is formed in the rear of the cover (30; 30') and / or is formed in an adjacent side surface of the housing (21; 21') and - that the arc groove (27; 27') is formed in the adjacent side surface of the housing (21; 21') and / or in the back of the lid (30; 30'). [2] Coupling stone element (20; 20') according to claim 1, characterized by , that the arc groove (27; 27') is fully formed in the side surface of the housing (21; 21'). [3] Coupling stone element (20; 20') according to claim 1, characterized by , that the arc groove (27; 27') is formed partly in the side surface of the housing (21; 21') and partly in the back of the lid (30; 30'). [4] Coupling stone element (20; 20') according to claim 1, characterized by , that the arch groove (27; 27') and the bolt receptacles (36, 37; 36', 37') are fully formed in the back of the cover (30; 30'). [5] Coupling stone element (20; 20') according to claim 1, characterized by , that the arc groove (27; 27') and the bolt receptacles (36, 37; 36', 37') are fully formed in the side surface of the housing (21; 21'). [6] Coupling stone element (20) according to one of claims 1 to 5, characterized by , that a bolt insertion opening (32) is provided which extends along the head receptacle (31) through the cover (30). [7] Coupling stone element (20) according to one of claims 1 to 6, characterized by , that a cover plate (30) is provided which can be inserted into retaining grooves (21.4) on the housing (21) and which has a head receptacle (31) for a head (24.1) of the eccentric bolt (24; 24'), [8] Coupling stone element (20) according to claim 7, characterized by , that the central bore (21.1) is designed as a blind bore and the eccentric bolt (24; 24') can be inserted into the central bore (21.1) against the force of at least one spring element (28) so far that the head (24.1) lies below the back of the cover (30) and the cover (30) can be pushed out of a guide in the housing (21) over the head (24.1). [9] A capsize shackle (100) for anchor chains, comprising at least two interlocking half-elements (10) each having a short leg (11) with a profile structure (13) at the end and a long leg (12) with a receiving chamber (14) for it, wherein locking element receptacles (17) are formed on the inner flanks (18) of the half-elements (10), and a coupling stone element (20; 20') inserted between the interlocking half-elements (10) according to one of the preceding claims. [10] Capsize shackle (100) according to claim 9, characterized by, that the housing (21; 21') of the coupling stone element (20; 20') has projections or recesses (21.3; 21.3') on its side surfaces to be assigned to the half-elements (10) for positive-locking guidance on complementary inner flanks (18) of the half-elements (10). [11] Capsize shackle (100) according to claim 9 or 10, characterized by , that the projections (22.1; 22.1') ​​of the locking elements (22) are each convexly rounded and the locking element receptacles (17) in the half-elements (10) are each convexly rounded and concave. [12] Capsize shackle (100) according to one of claims 9 to 11, characterized by , that the coupling stone element (20; 20') has a housing (21; 21') which is profiled on its side surfaces to be assigned to the half elements (10) for a positive-locking guidance on the half elements (10). [13] Capsize shackle (100) according to claim 12, characterized by , - that the legs (11, 12) each have a raised surface (15) on their inner flanks (18), - that the surfaces (15) on the opposite legs (11, 12) are parallel to each other, - that the coupling stone element (20; 20') is positively locked between the half-elements (10) by its recesses (21.3; 21.3') and the edges (16) of the surfaces (15) as well as by the hemispherical projections (22.1; 22.1') ​​of the locking elements (22) which engage in the locking element receptacles (17) on the inner surfaces of the half-elements (10).

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