Device for holding, lifting and / or carrying a load

Abstract

The invention relates to a device (1) for holding, lifting and / or carrying a load consisting of a metal material, in particular steel or aluminium; an opening (17) for introducing a means for fastening (15) a load, in particular a cable (15) or ring; a closure (3) which is pivotably fastened to the device (1), wherein the opening (17) can be closed by means of the closure (3) and the closure (3) has a securing means (5) by means of which the closure (3) can be held in a closed position, and wherein the closure (3) is formed from a locking mechanism, in particular a rotary latch and a pawl.

Description

[0001] Description

[0002] Device for holding, lifting and / or carrying a load

[0003] The invention relates to a device for holding, lifting and / or carrying a load, comprising a metallic material, in particular a steel, an opening for introducing a means for fastening a load, in particular a rope or ring, a closure which is pivotably fastened to the device, the opening being closable with the closure and the closure having a securing means with which the closure can be held in a closed position.

[0004] Load-handling devices are widely used in everyday life. For example, a crane hook is often used at the end of a crane rope. The load can be suspended from the crane hook so that it can be held, lifted, and / or carried. Hook-type safety devices are used to secure the load picked up by a crane hook. A hook-type safety device is used in lifting technology to secure loads attached to load hooks.

[0005] From DE 10 2018 116 021 B3, for example, a hook jaw locking device for securing a crane hook has become known, at least comprising: a securing means, a drive unit operatively connected to the securing means, and a retaining ring for fastening the securing means to the crane hook. The hook jaw locking device is characterized in that the hook jaw locking device comprises at least one device for end position sensing, which is designed to determine the end position of the securing means with respect to a hook jaw of the crane hook, wherein the device for end position sensing comprises a securing plate, and wherein the device for end position sensing comprises at least one sensor for determining a distance between the retaining ring and the device for end position sensing, namely for determining a distance between the retaining ring and the securing plate.The crane hook safety device comprises a securing device that is pivotally mounted on the crane hook. A linear drive allows the securing device to be moved toward the hook tip, thereby securing the load, and away from the hook tip, creating an opening for securing the load.

[0006] Another independently acting securing device is known from DE 41 18 945 A1. This document also discloses a crane hook safety device, wherein a central element arranged on the crane hook so as to pivot is pre-tensioned in the direction of the crane hook tip by means of an elastic means. The flanks of the metal element are formed from a rubber-elastic material, so that on the one hand a spring force is available for positioning the metal element in the closing direction and on the other hand the metal element can be moved against the force of the rubber-elastic material, for example to insert a rope into the crane hook.

[0007] Further examples include DD 10801 A1, which discloses a crane hook safety device in which a spring-loaded wing element can close the opening on the crane hook. For this purpose, a spring-loaded locking element with wings is pre-tensioned in such a way that the wings of the safety device rest against the tips of the crane hook. To introduce the load or load-carrying device, the wings of the safety device can be pivoted against the force of the spring, with the wings then moving back against the tips of the crane hook due to the spring force.

[0008] Crane hook securing devices have proven themselves fundamentally effective. In addition to securing loads, the ease of handling of the securing devices also plays a crucial role in the use of the carrying devices. Particularly when used under extreme weather conditions, such as dirt and / or rain, the securing devices must always be highly reliable and operate smoothly. This is where the invention comes in.

[0009] The object of the invention is to provide an improved load-handling device for holding, lifting, and / or carrying a load. In particular, the object of the invention is to provide a load-handling device that is extremely robust and reliable, yet at the same time ensures smooth release of the load-handling device from the load or from the support means itself.

[0010] The object of the invention is achieved by independent patent claim 1. Advantageous embodiments can be gathered from the description, the claims, and the drawings. However, it should be noted that the examples presented in the description and the figures are not to be understood as limiting; rather, any desired variations of the presented examples and claims are possible.

[0011] The object of the invention is achieved in that a device for holding, lifting and / or carrying a load is provided, consisting of a metallic material, in particular steel, an opening for introducing a means for fastening a load, in particular a rope and / or a ring, a closure which is pivotably fastened to the device, the opening being closable with the closure and the closure having a securing means with which the closure can be held in a closed position, the closure being formed from a locking mechanism consisting of a rotary latch and at least one pawl. The design of the load-bearing device according to the invention now makes it possible to close the load-bearing device easily and at the same time securely.In particular, the use of a locking mechanism can ensure that the load is held securely and at the same time make the device easier to use.

[0012] The use of a locking mechanism consisting of a rotary latch and at least one pawl makes it possible to provide easy interaction when inserting a load-bearing device, such as a rope or a ring, into the device. The locking mechanism consists of a rotary latch which is spring-loaded in the direction of its open position in the device and in particular held between two receptacles made of a metallic material. When the rotary latch is not actuated, the rotary latch therefore protrudes from the device or is in the open direction so that the rope or a ring can be inserted into the rotary latch. To lock the locking mechanism, the rotary latch is then moved against the spring force in the direction of the device far enough for the pawl to engage in the rotary latch.For this purpose, the pawl is spring-loaded and rests against the rotary latch and slides along the rotary latch until a detent position is reached on the rotary latch and the rotary latch and pawl engage with each other. At this point, a load arm of the rotary latch closes an inlet area for the rope or ring, so that the rope or ring is securely held in the device as a load-bearing device. The pawl is spring-loaded in the direction of the rotary latch, so that it continuously rests against the rotary latch and the pawl engages with the rotary latch.

[0013] A rotary latch and at least one pawl form the locking mechanism. Depending on the design of the locking mechanism, a two-notch rotary latch can be used, providing two locking positions on the rotary latch. Furthermore, it is also possible to use more than one pawl, in which case the pawl position can be secured, for example, with a second pawl. The second pawl can then be referred to as a blocking lever or locking lever.

[0014] The device for holding, lifting, and / or carrying a load can be used, for example, as a replacement for a crane hook or a snap hook. It can be used anywhere, for example, where people or loads need to be secured and / or people or loads need to be lifted and / or carried. The locking mechanism in the device forms a securing device which, through the interplay of the pawl and rotary latch, ensures secure locking and thus secure holding of the load and / or person.

[0015] The device is preferably made of a metallic material, in particular steel or aluminium, and preferably has two metallic plates which are aligned relative to one another and preferably parallel to one another. The locking mechanism is rotatably arranged between the metal bodies in such a way that the locking mechanism is freely movable and the rotary latch extends into a receptacle or recess in the plates so that interaction with the load-handling device, such as a rope, can be ensured. The recess or opening for introducing a means of securing a load is thus at least partially closed by the rotary latch and after latching into the pawl, the rotary latch completely closes the opening or recess or receptacle opening so that the rope cannot be released from engagement with the rotary latch.The rotary latch thus forms the closure for the opening for the insertion of the fastening device or load-bearing device, such as a wire rope or a chain link. In any case, the use of the locking mechanism provides a securing device that enables the device to be a safe and smooth means of lifting, carrying, or transporting a load.

[0016] In one embodiment of the invention, the locking mechanism is held in a metallic housing. In one embodiment of the invention, the housing can be formed from two parallel, opposing plates. The plates can then be screwed together at a distance, for example by sleeves, so that secure storage of the locking mechanism in the metal plates is possible. However, it is also conceivable for the metallic housing to be formed, for example, from a U-shaped, bent sheet metal, so that the locking mechanism is protected around its circumference, at least in some areas. It is also conceivable for the housing to be closed around its circumference, with only the receiving opening for inserting the fastening means and for interaction with the locking mechanism being open. The housing can be designed depending on the application and ambient conditions.In areas with a high degree of contamination, a closed housing can be advantageous, whereas in areas where low weight is advantageous, only two metal plates can be used to support the locking mechanism.

[0017] In a further design variant, an advantage arises if a release means is provided so that the pawl can be manually released from engagement with the rotary latch. In the simplest case, a release means can represent an opening in the housing, in which the pawl can be manually actuated and thus moved out of the engagement area with the rotary latch. Advantageously, a bolt can also be attached to the pawl so that the pawl can be manually grasped and moved at a distance. If, for example, an opening is then formed in the housing through which the bolt can be actuated from outside the housing, the bolt can be easily grasped and the pawl moved. Of course, other solutions for actuating the pawl are also conceivable, for example in the form of a strap, eyelet or chain, which enable the pawl to be actuated and thus also represent a release device.The triggering means can also, for example, consist of another lever arranged in the device, which is then also manually operated and thus the pawl can be moved indirectly. If the triggering means can be operated electrically, a further advantageous embodiment of the invention can be achieved. If the triggering means is actuated electrically, the triggering means can be actuated remotely, which opens up further convenient areas of application for the device. For example, loads can be set down or picked up without additional assistance or manual operation, which can make operation of the device much easier.For example, an electric drive in the form of an electric motor can be arranged in the device itself, which then works via a gear or directly on the pawl, so that the locking mechanism can be unlocked electrically.

[0018] If the device has a closing aid so that the locking mechanism can be closed electrically, this can also make the device easier to operate. A closing aid acts on the rotary latch and can move the rotary latch into the detent position, i.e. the engaged position with the pawl, if the rotary latch is not fully closed. The closing aid can then, for example, engage the rotary latch and move the rotary latch in the closing direction. This can be advantageous in particular in the case of remote operation or when the device is operated from a remote control station, if it is to be ensured that the locking mechanism has been moved into the detent position. The closing aid therefore represents an advantageous embodiment which, in particular, ensures that the locking mechanism engages securely.If the device has a further receiving opening so that a further fastening means can be inserted into the device, the area of ​​application of the device can be expanded. In this case, for example, a receiving opening can be formed in the housing so that a further rope or, for example, a crane rope can be permanently connected to the device. The device serves, for example, as a crane hook. In addition, the receiving opening can also be used, for example, to accommodate a safety rope if the device is in the form of a carabiner and is to be used for climbing or securing a person. The areas of application are diverse and the further receiving opening means the device can be used on both sides.

[0019] If another locking mechanism is inserted into the additional receiving opening, so that, for example, there is a locking mechanism at each of the two opposite ends of the housing, the device can then be used in further areas of application. Depending on the area of ​​responsibility and use of the device, the device can therefore be designed to suit individual requirements. Advantageously, for example, modifications or combinations of the devices can also be provided, for example using an electric drive on one side to unlock, whereas with another locking mechanism a manual opening and thus manual operation of the pawl is used. In any case, the use of the locking mechanism in the device can provide a safe and smooth-running means of securing, lifting, holding and / or carrying loads.The invention is explained in more detail below with reference to the accompanying drawings. However, the principle applies that the exemplary embodiment does not limit the invention, but merely represents an advantageous embodiment. The features illustrated can be implemented individually or in combination with other features of the description and the patent claims.

[0020] It shows :

[0021] Figure 1 is a view of a device for holding, lifting and carrying a load with a locking mechanism and a housing, the device being shown partially transparent, and

[0022] Figure 2 is a three-dimensional view of the device designed according to the invention according to Figure 1 in a closed position.

[0023] Figure 1 shows a device 1 in a view of one side of a housing 2. Arranged inside the housing 2 is a locking mechanism 3, which is formed from a rotary latch 4 and a pawl 5. The locking mechanism 3 is pivotally mounted in the device 1 via the axes 6, 7. In addition, the housing 2 has a receiving opening 8 which extends through the entire housing 2. In this exemplary embodiment, the housing 2 is formed from metallic plates 9, 10. The sheets or plates 9, 10 are connected to one another, for example via screw means 11, 12, 13, 14. The locking mechanism 3 is shown in a detent position, the rotary latch 4 being secured in the closed position shown in Figure 1 by means of the pawl 5. In this embodiment, for example, a rope 15 is held in the device 1 by means of the rotary latch 4.A load arm 16 of the rotary latch 4 closes the inlet area 17 of the device 1, so that the cable 15 is securely held by the device 1. To securely lock the rotary latch 4, the pawl 5 engages a locking surface 18 of the rotary latch 4, thereby ensuring secure locking of the cable 15 by the device 1.

[0024] In order to now release the cable 15, the pawl 5 must be moved out of the engagement area with the rotary latch 4. To do this, the pawl 5 must be moved in the direction of the arrow P. For manual actuation of the pawl 5, a bolt 19 is fastened to the pawl 5 and the bolt can be grasped from the outside through a contour 20 and moved through the contour 20. The movement of the pawl 5 in the direction of the arrow P now results in the rotary latch 4 being released and moving in the opening direction in the direction of the arrow P2. To move the rotary latch 4, a spring 21, for example a leg spring 21, is fastened to the rotary latch and spring-loaded moves the rotary latch 4 in the direction of the arrow P2, that is to say counterclockwise in this embodiment. A release of the rotary latch by the pawl 5 is thus followed by a movement of the rotary latch 4 in the direction of the arrow P2 , whereby the rope 15 is released.The pawl 5, in turn, is spring-loaded in the direction of arrow P3, so that after the locking mechanism has been opened by manual actuation of the pawl 5, the pawl 5 moves back towards the rotary latch. The pawl 5 then rests against an outer surface 22 of the rotary latch 4 in a spring-loaded manner, so that after the opened rotary latch 4 is moved in the closing direction, the pawl can again engage the locking surface 18. The locking mechanism can thus be easily closed, for example by inserting the cable into the open inlet mouth 23 of the rotary latch 4 and moving the rotary latch in the closing direction by means of the cable. As soon as the rotary latch 4 has reached the closing position, as shown in Figure 1, the rotary latch 5 engages in the locking surface of the rotary latch 4 and secures the rope 15.

[0025] In this exemplary embodiment, the housing 2 has an additional receiving opening 8 which is suitable, for example, for a safety rope or a crane rope, so that the device 1 can be fastened to a rope or other fastening means, such as a rope or a chain.

[0026] Figure 2 shows a three-dimensional view of the device 1. It can be seen that the housing 2 is made from two spaced-apart sheet metal parts, in particular plates, wherein the plates 9, 10 can also be made from an aluminum material, for example. The plates 9, 10 are held spaced from one another and mounted to one another by means of screws or sleeves. Screws 11, 12, 13, 14 or even rivets can be used here, depending on which loads are to be carried or absorbed by the device. Figure 2 also shows the closed position in which the rotary latch 4 is located when a fastening means 15 is accommodated in the device 1. Figure 2 shows an open housing 2, but it is of course also conceivable for the housing to be made in one piece and, for example, from a U-shaped or U-shaped sheet metal.In any case, the locking mechanism can be unlocked and the fastening means 15 released by manually operating the bolt 19. Thus, on the one hand, a secure device 1 is available that is easy to operate.

[0027] List of reference symbols

[0028] 1 device

[0029] 2 housings

[0030] 3 locking devices

[0031] 4 rotary latch

[0032] 5 pawl

[0033] 6, 7 axis

[0034] 8 Receiving opening

[0035] 9, 10 plates

[0036] 11, 12, 13, 14 screws

[0037] 15 Rope, fastening equipment

[0038] 16 load arm

[0039] 17 Inlet area

[0040] 18 Restricted area

[0041] 19 bolts

[0042] 20 Contour

[0043] 21 spring

[0044] 22 Surface

[0045] 23 Inlet mouth

[0046] 24, 25, 26 sleeve

[0047] P, P2, P3 arrow

Claims

Patent claims 1. Device (1) for holding, lifting and / or carrying a load consisting of a metallic material, in particular steel, an opening (17) for introducing a means for fastening (15) a load, in particular a rope (15) or ring, a closure (3) pivotally fastened to the device, wherein the opening (17) can be closed with the closure (3) and the closure (3) has a securing means (5) with which the closure (3) can be held in a closed position, characterized in that the closure (3) is formed from a locking mechanism (2).

2. Device (1) according to claim 1, characterized in that the locking mechanism (3) is held in a metallic housing (2).

3. Device (1) according to claim 2, characterized in that the housing (2) encloses the locking mechanism (3) at least on both sides.

4. Device (1) according to one of claims 1 to 3, characterized in that the locking mechanism (3) comprises a spring-loaded rotary latch (4) and at least one spring-loaded pawl (5).

5. Device (1) according to claim 4, characterized in that a release means (19) is provided so that the pawl (5) can be manually released from engagement with the rotary latch (4).

6. Device (1) according to claim 5, characterized in that the triggering means (19) is electrically actuated.

7. Device (1) according to one of claims 1 to 6, characterized in that the device (11) has a closing aid so that an electrical closing of the locking mechanism (3) is possible.

8. Device (1) according to claim 7, characterized in that the closing aid and / or the triggering means (19) can be remotely operated.

9. Device (1) according to one of claims 1 to 8, characterized in that the device (1) has a further receiving opening (8) so that a further fastening means (15) can be inserted into the device (1).

10. Device (1) according to claim 9, characterized in that the further receiving opening (8) is provided with a locking mechanism (3).

Images