Safety device and cable drum bracket

Abstract

Safety device (10) for securing a cable drum to a cable drum shaft (11), comprising a clamp (12) with two semicircular legs (13), wherein the legs (13) are pivotable relative to each other in a scissor-like manner about a pivot axis (S), wherein the pivot axis (S) is arranged at a first end (14) of the legs (13), wherein the terminal (12) can be moved from an open state to a closed state and from the closed state to the open state, wherein the legs (13) are pivoted apart in the open state of the clamp (12), wherein the ends (15) of the legs (13) furthest from the axis are spaced apart from each other, so that the clamp (13) can be slid onto the cable drum shaft (11), and wherein the legs (13) are pivoted towards each other in the closed state of the clamp (12) so that the two semicircular legs (13) form a circular recess (16) between them, wherein the circular recess (16) is provided for receiving the cable drum shaft (11), wherein a closure (17) is arranged in the area of ​​the ends (15) furthest from the axis of the leg (13), wherein the two legs (13) can be detachably fastened to each other at their ends (15) furthest from the axis by means of the closure (17) in order to prevent the clamp (12) from being moved from the closed state to the open state.

Description

[0001] The invention relates to a securing device for securing a cable drum to a cable drum shaft and a cable drum holder for holding a cable drum, in particular a cable drum for underground cables or underground lines, with one or two such securing devices.

[0002] When arranging a cable drum, in particular a cable drum for underground cables or earth lines, as required for example for a cable plough, in a bearing block, there is a need to lift the cable drum shaft into the bearing block, to support the cable drum shaft in the bearing block and to secure the cable drum to the cable drum shaft and furthermore to secure the cable drum shaft in the bearing block.

[0003] It is therefore an object of the invention to provide a novel securing device, in particular a securing device that offers both a lifting option for the cable drum shaft and the option of supporting and securing the cable drum shaft in the bearing block, as well as securing the cable drum to the cable drum shaft. Furthermore, it is an object of the invention to provide a novel cable drum holder, in particular a novel cable drum holder comprising one or more such securing devices.

[0004] This object is achieved with regard to the securing device by the features of claim 1 and with regard to the cable drum holder by the features of claim 14. Advantageous embodiments and further developments are specified in the respective dependent claims.

[0005] The securing device according to the invention comprises a clamp with two semicircular legs, wherein the legs can be pivoted relative to one another in a scissor-like manner about a pivot axis, wherein the pivot axis is arranged at a first end of the legs, wherein the clamp can be transferred from an open state to a closed state and from the closed state to the open state, wherein the legs are pivoted apart in the open state of the clamp, wherein the ends of the legs remote from the axis are spaced from one another so that the clamp can be pushed onto the cable drum shaft, and wherein the legs are pivoted towards one another in the closed state of the clamp so that the two semicircular legs form a circular recess between them, wherein the circular recess is provided for receiving the cable drum shaft, wherein a closure is arranged in the region of the ends of the legs remote from the axis,wherein the two legs can be releasably fastened to one another by means of the closure at their ends remote from the axis in order to prevent the clamp from being transferred from the closed state to the open state.

[0006] The end of the respective leg remote from the axis is in particular the end of the leg remote from the pivot axis and opposite the first end.

[0007] The advantages of the invention lie in the fact that the securing device is suitable for lifting the cable drum shaft, as a bearing for the cable drum shaft in the bearing block, and for securing the cable drum shaft in the bearing block and the cable drum to the cable drum shaft. Thus, the securing device combines several functions in a single component, in particular, bearing, lifting device, and securing. Furthermore, the securing device is simple, quick, and safe to install. Furthermore, the securing device requires very little installation space.

[0008] The securing device particularly preferably has a lever element, wherein the lifting element is provided for attaching a rope and / or a chain to the securing device. The lifting element is preferably a shackle with an opening or an eyelet with an opening. The lifting element is preferably a shackle, wherein the shackle is fastened or can be fastened to the securing device, in particular detachably, by means of a screw and a recess in the securing device corresponding to the screw. The longitudinal axis of the screw can correspond to the pivot axis of the clamp when the lifting element is fastened. It can be provided that the cross-sectional area of ​​the opening of the lifting element designed as a shackle or the opening of the lifting element designed as an eyelet is arranged perpendicular to the pivot axis of the legs.

[0009] Preferably, the two legs are arranged parallel and offset from one another along the longitudinal axis of the recess. When the securing device is mounted on the cable drum shaft, the longitudinal axis of the recess corresponds in particular to the longitudinal axis of the cable drum shaft. It can be provided that the ends of the two legs remote from the axis overlap in an overlap region when the clamp is closed.

[0010] The closure preferably comprises a bore in each of the two legs and a screw corresponding to the bores or a bolt corresponding to the bores. The bores are preferably arranged in the region of the ends of the legs remote from the axis. It is preferably provided that the bores are aligned when the clamp is closed, so that the screw or bolt can be guided or passed through the two bores in order to releasably fasten the legs to one another. The screw can be longer than the bore so that the screw can be secured by means of a nut to prevent it from being pulled out of the bore.

[0011] According to one embodiment of the invention, the legs each have a semi-cylindrical extension parallel to the longitudinal axis of the recess, wherein the semi-cylindrical extension extends away from the legs on both sides, in particular perpendicularly. When the clamp is closed, the two semi-cylindrical extensions preferably form a cylinder for gripping the cable drum shaft. It may be possible for the cylinder not to have a continuous outer surface, but rather to have a groove between the two semi-cylindrical extensions. It can be provided that the semi-cylindrical extension of each leg is longer on the side facing the other leg than on the side facing away from the other leg.

[0012] According to a preferred embodiment of the invention, the securing device comprises a securing bolt and a locking bore corresponding to the securing bolt. The locking bore is preferably arranged, in particular adjacent to the bore, in the region of the ends of the legs remote from the axis. The locking bore is in particular composed of one bore in each of the legs when the clamp is in the closed state.

[0013] The cable drum holder according to the invention for holding a cable drum, in particular a cable drum for underground cables or underground lines, comprises a cable drum shaft which can be or is guideable through a central recess in the cable drum, a bearing block for receiving the cable drum shaft, and one or two securing devices according to the invention.

[0014] Preferably, the securing device or devices form the bearing(s) of the cable drum shaft in the bearing block. Particularly preferably, the bearing block has two recesses, each for receiving one of the bearings.

[0015] It can be provided that the recesses each have a funnel-shaped insertion channel for inserting the bearings into the bearing block. In one embodiment, the insertion channel is open at an upper inlet and on one side. The recesses are in particular each arranged at an upper end of the uprights of the bearing block. The open side is the side of the insertion channel oriented towards the other upright. Particularly preferably, the side walls of the funnel-shaped insertion channel each form an inclined plane, wherein the inclined planes are provided for guiding and / or centering the securing device into a storage position. The term “storage position” is understood in particular to mean a position of the bearings in the recess in which the bearings or securing devices are fully inserted into the recess.

[0016] It can be provided that the recesses in the area of ​​the storage position have an inner contour which corresponds to a section of the outer contour of the securing device, so that the securing device can be or is securable secured in the recess by means of section-by-section positive locking.

[0017] The bearing block preferably comprises a support frame or is preferably designed as a support frame. The bearing block, designed as a support frame, comprises two, in particular trapezoidal, uprights, wherein the uprights are connected to one another by a, in particular rectangular, connecting element. The uprights and / or the connecting element are formed from beams, in particular steel beams. The connecting element preferably forms the base of the bearing block.

[0018] According to a further development of the invention, it is provided that each securing device comprises a securing bolt and a locking bore corresponding to the securing bolt, and wherein the bearing block has, in a region below the recesses for the bearings, a locking bore corresponding to the securing bolts for receiving the securing bolts, wherein when the securing devices are inserted into the recesses up to the storage position, the locking bore of each securing device and the respective locking bore of the bearing block are brought into line, wherein the securing bolts can be inserted into the respective locking bore of the bearing block and into the respective locking bore of the securing device in order to lock the securing devices against being led out of the recess, in particular upwards.It can be provided that each securing bolt is attached to the bearing block at one of its ends by means of a chain or a rope. The locking hole is in particular a through hole extending through the support of the bearing block, preferably parallel to the longitudinal axis of the cable drum shaft.

[0019] The invention will be explained in more detail below with regard to further features and advantages by means of the description of exemplary embodiments and with reference to the accompanying schematic drawings. Fig. 1a two securing devices according to the invention on a cable drum shaft in a front view; Fig. 1b a safety device according to the invention and the cable drum shaft according to Fig. 1a in a side view; Fig. 1c a section through the safety devices and the cable drum shaft along the section plane BB in Fig. 1a; Fig. 1d an enlarged detailed view of the marked area in Fig. 1c; Fig. 2a a cable drum holder according to the invention and a securing device according to the invention in a side view; Fig. 2b a cable drum holder according to the invention and two securing devices according to the invention in a front view; Fig. 2c an enlarged detailed view of the marked area in Fig. 2a; Fig. 2d an enlarged detailed view of the marked area in Fig. 2b; Fig. 3 a cable drum holder according to the invention and two securing devices according to the invention in a three-dimensional representation; Fig. 4 a section of a cable drum holder according to the invention and a securing device according to the invention in a three-dimensional representation.

[0020] Corresponding parts and components are designated by the same reference numerals in the figures, even across the various embodiments.

[0021] Fig. 1a to Fig. 4 each show a securing device 10 according to the invention for securing a cable drum (not shown in the figures) to a cable drum shaft 11. In particular, the securing device is intended to prevent the cable drum from slipping off the cable drum shaft 11 or the cable drum shaft 11 from being led out of the cable drum.

[0022] The safety device 10 comprises, as in particular Fig. 1b, Fig. 2c and Fig. 4 show a clamp 12 with two semicircular legs 13, wherein the legs 13 can be pivoted relative to one another in a scissor-like manner about a pivot axis S, wherein the pivot axis S is arranged at a first end 14 of the legs 13. The clamp 12 can be moved from an open state to a closed state and from the closed state back to the open state.

[0023] In the open state of the clamp 12, the legs 13 are pivoted apart, with the ends 15 of the legs 13 remote from the axis being spaced apart from each other, so that the clamp 13 can be pushed onto the cable drum shaft 11. In the closed state of the clamp 12, which in Fig. 1a to Fig. As shown in Figure 4, the legs 13 are pivoted toward each other so that the two semicircular legs 13 form a circular recess 16 between them, wherein the circular recess 16 is provided for receiving the cable drum shaft 11. The circular recess 16 has a circular cross-sectional area.

[0024] A closure 17 is arranged in the region of the off-axis ends 15 of the legs 13. The off-axis end 15 of the respective leg 13 is the end of the leg 13 remote from the pivot axis S and opposite the first end 14. In the state illustrated in the figures, the two legs 13 are releasably fastened to one another at their off-axis ends 15 by means of the closure 17 in order to prevent the clamp 12 from being moved from the closed state to the open state.

[0025] The securing device 10 has a lever element 18 designed as a shackle, wherein the lifting element 18 is provided for attaching a rope or chain to the securing device 10. The shackle has an opening 20 through which the rope or chain can be guided. The rope or chain can be guided through the openings of the shackles of the two securing devices 10 arranged on the cable drum shaft 11. The cable drum shaft 11, possibly with a cable drum arranged on the cable drum shaft 11, can then be lifted, for example by means of a crane or excavator. The shackle is releasably attached to the securing device 10 by means of a screw 19 and a recess in the securing device 10 corresponding to the screw 19. When the lifting element 18 is fastened to the clamp 12, the longitudinal axis of the screw 19 corresponds to the pivot axis S of the clamp 12.The cross-sectional area of ​​the opening 20 of the lifting element 18 designed as a shackle is arranged perpendicular to the pivot axis S of the legs 13.

[0026] As in particular Fig. 1d and Fig. 4, the two legs 13 are arranged parallel and offset from one another along the longitudinal axis of the recess 16. The longitudinal axis of the recess 16 of the clamp 12 corresponds, in a state of the securing device 10 mounted on the cable drum shaft 11, to the longitudinal axis L of the cable drum shaft 11. The ends 15 of the two legs 13 remote from the axis overlap in an overlap area when the clamp 12 is closed, as shown in particular in FIG. Fig. 1b and Fig. Show 2c.

[0027] In particular Fig. 1a, Fig. 1b and Fig. 2c show that the closure 17 comprises a bore 21 in each of the two legs 13 and a screw 22 corresponding to the bores 21. The bores 21 are each arranged in the region of the ends 15 of the legs 13 remote from the axis. In the closed state of the clamp 12, which in Fig. 1a to Fig. As shown in Figure 4, the holes 21 of the two legs 13 are aligned, with the screw 22 being guided through the two holes 21 to releasably fasten the legs 13 to one another. The screw 22 is longer than the depth of the two holes 21, so that the screw 22 protrudes from the holes 21 at one end and is secured with a nut.

[0028] As in particular Fig. 1d and Fig. 4, the legs 13 each have a semi-cylindrical extension 23 parallel to the longitudinal axis of the recess 16, wherein the semi-cylindrical extension 23 extends on both sides and perpendicularly away from the legs 13. The two semi-cylindrical extensions 23 form a cylinder for gripping the cable drum shaft 11 in the closed state of the clamp 12, as in particular Fig. 4 shows. The cylinder does not have a continuous surface, but rather a groove between the two semi-cylindrical extensions. Fig. 1d shows that the semi-cylindrical extension 23 of each leg 13 is longer on the side facing the other leg 13 than on the side facing away from the other leg 13.

[0029] The securing device 10 further comprises a securing bolt 24 and a locking bore 25 corresponding to the securing bolt. The locking bore 25 is arranged adjacent to the bore 21 in the region of the distal ends 15 of the legs 13. The locking bore 25 is composed of one bore in each of the legs 13 when the clamp 12 is in the closed state.

[0030] Fig. 2a to Fig. 4 each show a cable drum holder 26 according to the invention for holding a cable drum (not shown in the figures) for underground cables or underground lines. The cable drum holder 26 comprises a cable drum shaft 11, which can be or is capable of being guided through a central recess in the cable drum, a bearing block 27 for receiving the cable drum shaft 11, and two securing devices 10 according to the invention.

[0031] The securing devices 10 form the bearings of the cable drum shaft 11 in the bearing block 27. The bearing block 27 has two recesses 28, each for receiving one of the bearings. The recesses 28 each have a funnel-shaped insertion channel 31 for inserting the bearings into the bearing block 27. The insertion channel 31 is open at an upper inlet 32 ​​and on one side. The recesses 28 are each arranged at an upper end of the uprights 29 of the bearing block 27. The open side is the side of the insertion channel oriented toward the other upright 29.

[0032] The side walls 33 of the funnel-shaped insertion channel 31 each form an inclined plane, wherein the inclined planes are provided for guiding and / or centering the securing device 10 into a storage position. The term "storage position" refers to a position of the bearings in the respective recess 28 in which they are fully inserted into the recess 28. In the region of the storage position, the recesses 28 have an inner contour that corresponds to the lower section of the outer contour of the securing device 10, so that the securing device 10 can be or is securable secured in the recess 28 by means of a section-by-section positive locking. By means of a section-by-section positive locking, the bearings are secured in the storage position against being moved out of the storage position, with the exception of an upward movement.

[0033] The bearing block 27 is designed as a support frame. The bearing block 27, designed as a support frame, comprises two, in particular Fig. 2a and Fig. 3, wherein the uprights 29 are connected to one another by a rectangular connecting element 30. The uprights 29 and the connecting element 30 are made of steel beams. The connecting element 30 forms the base of the bearing block 27.

[0034] Each securing device 10 comprises a securing bolt 24 and a locking bore 25 corresponding to the securing bolt 24. The bearing block 27 has, in an area below the recesses 28 for the bearings, a locking bore 34 corresponding to the securing bolts 10 for receiving the securing bolts 24.

[0035] When the securing devices 10 are inserted into the respective recess 28 up to the storage position, the locking holes 25 of the securing device 10 and the respective locking hole 34 of the bearing block 27 are aligned, with the securing bolts 24 being inserted into the respective locking hole 34 of the bearing block 27 and into the respective locking hole 25 of the securing device 10 in order to lock the securing device 10 against being led out of the recess 28 upwards. The securing bolts 10 are attached at one of their ends to the bearing block 27 by means of a chain. The locking holes 34 of the bearing block 27 are through holes that extend parallel to the longitudinal axis L of the cable drum shaft 11 through the stand 29 of the bearing block 27.

[0036] A method for using the securing devices 10 according to the invention and / or the cable drum holder 26 according to the invention can be represented as follows, wherein the starting situation is a cable drum holder 26 with two securing devices 10 mounted on the cable drum shaft 11.

[0037] First, the screw 22 of one of the two securing devices 10 is removed from the bore 21 to release the lock 17. The securing device 10 is then disassembled from the cable drum shaft 11. The cable drum shaft 11 is then guided through a central recess in a cable drum, with the end of the cable drum shaft free of the securing device 10 being guided first. After the cable drum shaft 11 has been inserted into the cable drum, the previously detached securing device 10 is reattached to the cable drum shaft 11 by first sliding it on and then closing the lock 17 again by bringing the clamp 12 into the closed position and closing the lock 17 again with the screw 22. Chains or ropes can now be mounted on the lifting elements 18 of the securing devices 10, which are designed as shackles.Using the chains or ropes, the cable drum can now be lifted with an excavator or crane and lifted over the bearing block 27 of the cable drum holder 26. The securing devices 10 are then positioned over the recesses 28 in the uprights 29 of the bearing block 27. If necessary, the position of the cable drum shaft 11 can be corrected using a pull rope. The cable drum shaft 11 is then lowered so that the securing devices are guided into the recesses 28. By means of the side walls 33 of the insertion channel 31 of the recesses 28, which are designed as inclined planes, the securing device 10 is automatically guided towards the storage position during lowering and / or the cable drum shaft 10 is automatically centered during lowering.Once the securing devices 10 are arranged in their respective storage positions, the securing bolts 24 can be inserted into the respective locking holes 25, 34 to finally secure the securing devices 10 to the bearing block 26. Furthermore, the chains or ropes can be released from the lifting elements 18.

[0038] The bearing block 27 of the cable drum holder 26 can be arranged, for example, on a truck trailer to transport the cable drums. Multiple bearing blocks 27 can also be transported by means of a truck trailer or arranged on the trailer. List of reference symbols 10 Safety device 11 Cable drum shaft 12 terminal 13 legs 14 first end 15 end far from the axis 16 Recess 17 Closure 18 Lever element 19 Screw 20 Opening 21 Hole 22 screw 23 Extension 24 locking bolts 25 locking hole 26 Cable drum holder 27 Bearing block 28 recess 29 stands 30 connecting element 31 Introduction channel 32 Entrance 33 Side wall 34 Locking hole S swivel axis L Longitudinal axis

Claims

[1] Securing device (10) for securing a cable drum to a cable drum shaft (11), comprising a clamp (12) with two semicircular legs (13), wherein the legs (13) can be pivoted against each other in a scissor-like manner about a pivot axis (S), wherein the pivot axis (S) is arranged at a first end (14) of the legs (13), wherein the terminal (12) can be transferred from an open state to a closed state and from the closed state to the open state, wherein the legs (13) are pivoted apart in the open state of the clamp (12), wherein the ends (15) of the legs (13) remote from the axis are spaced apart from one another, so that the clamp (13) can be pushed onto the cable drum shaft (11), and wherein the legs (13) are pivoted towards each other in the closed state of the clamp (12), so that the two semicircular legs (13) form a circular recess (16) between them, wherein the circular recess (16) is provided for receiving the cable drum shaft (11), wherein a closure (17) is arranged in the region of the ends (15) of the legs (13) remote from the axis, wherein the two legs (13) can be releasably fastened to one another at their ends (15) remote from the axis by means of the closure (17) in order to prevent the clamp (12) from being transferred from the closed state to the open state. [2] Safety device (10) according to claim 1, characterized by that the safety device (10) has a lever element (18), wherein the lifting element (18) is provided for fastening a rope and / or a chain to the safety device (10). [3] Safety device (10) according to claim 2, characterized bythat the lifting element (18) is a shackle with an opening (20) or an eyelet with an opening. [4] Safety device (10) according to claim 3, characterized by that the cross-sectional area of ​​the opening (20) of the lifting element (18) designed as a shackle or the opening of the lifting element (18) designed as an eyelet is arranged perpendicular to the pivot axis (S) of the legs (13). [5] Safety device (10) according to one of the preceding claims, characterized by that the two legs (13) are arranged parallel and offset from one another along the longitudinal axis of the recess (16). [6] Safety device (10) according to one of the preceding claims, characterized by that the ends (15) of the two legs (13) remote from the axis overlap in an overlap area when the clamp (12) is closed. [7] Safety device (10) according to one of the preceding claims, characterized bythat the closure (17) comprises a bore (21) in each of the two legs (13) and a screw (22) corresponding to the bores (21) or a bolt corresponding to the bores (21). [8] Safety device (10) according to claim 7, characterized by that the bores (21) are each arranged in the region of the ends (15) of the legs (13) remote from the axis. [9] Safety device (10) according to claim 7 or 8, characterized by that the holes (21) are aligned when the clamp (12) is in the closed state, so that the screw (22) or the bolt can be or is capable of being guided through the two holes (21) in order to releasably fasten the legs (13) to one another. [10] Safety device (10) according to one of the preceding claims, characterized bythat the legs (13) each have a semi-cylindrical extension (23) parallel to the longitudinal axis of the recess (16), wherein the semi-cylindrical extension (23) extends on both sides, in particular perpendicularly, away from the legs (13). [11] Safety device (10) according to claim 10, characterized by that the two semi-cylindrical extensions (23) form a cylinder for gripping the cable drum shaft (11) when the clamp (12) is closed. [12] Safety device (10) according to claim 10 or 11, characterized by that the semi-cylindrical extension (23) of each leg (13) is longer on the side facing the other leg (13) than on the side facing away from the other leg (13). [13] Safety device according to one of the preceding claims, characterized bythat the securing device (10) comprises a securing bolt (24) and a locking bore (25) corresponding to the securing bolt. [14] Cable drum holder (26) for holding a cable drum, in particular a cable drum for underground cables or underground lines, comprising a cable drum shaft (11) which can be or is guideable through a central recess in the cable drum, a bearing block (27) for receiving the cable drum shaft (11), and one or two securing devices (10), wherein the securing device (10) is a securing device (10) according to one of claims 1 to 13. [15] Cable drum holder (26) according to claim 14, characterized by that the securing device (10) or the securing devices (10) form the bearing(s) of the cable drum shaft (11) in the bearing block (27). [16] Cable drum holder (26) according to claim 14 or 15, characterized bythat the bearing block (27) has two recesses (28) for receiving one of the bearings each. [17] Cable drum holder (26) according to claim 16, characterized by that the recesses (28) each have a funnel-shaped introduction channel (31) for inserting the bearings into the bearing block (27). [18] Cable drum holder (26) according to claim 17, characterized by that the introduction channel (31) is open at an upper inlet (32) and on one side. [19] Cable drum holder (26) according to claim 17 or 18, characterized by that the side walls (33) of the funnel-shaped introduction channel (31) each form an inclined plane, wherein the inclined planes are provided for guiding and / or centering the securing device (10) into a storage position. [20] Cable drum holder (26) according to one of claims 16 to 19, characterized bythat the recesses (28) in the region of the storage position have an inner contour which corresponds to a section of the outer contour of the securing device (10), so that the securing device (10) can be or is securable by means of section-wise positive locking in the recess (28). [21] Cable drum holder (26) according to one of claims 14 to 20, characterized by that the bearing block (27) comprises a support frame or is designed as a support frame. [22] Cable drum holder (26) according to one of claims 16 to 21, characterized bythat each securing device (10) comprises a securing bolt (24) and a locking bore (25) corresponding to the securing bolt, and wherein the bearing block (27) has, in a region below the recesses (28) for the bearings, a locking bore (34) corresponding to the securing bolts (10) for receiving the securing bolts (24), wherein when the securing devices (10) are inserted into the recesses (28) up to the storage position, the locking bore (25) of each securing device (10) and the respective locking bore (34) of the bearing block (27) are aligned, wherein the securing bolts (24) can be inserted into the respective locking bore (34) of the bearing block (27) and into the respective locking bore (25) of the securing device (10) in order to secure the securing devices (10) to prevent it from being led out of the recess (28).

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