Auxiliary swivel for double safety

Abstract

It provides an auxiliary swivel to ensure double safety. [Solution] The system comprises first and second connecting cylinders 1 and 2 configured to pass at least one main rope and / or main swivel, a first bracket 3 configured to connect at least one first auxiliary rope and / or at least one first auxiliary carabiner, and a second bracket 4 configured to connect at least one second auxiliary rope and / or at least one second auxiliary carabiner, wherein the first connecting cylinder 1 and the second connecting cylinder 2 are both rotatably mounted, the first connecting cylinder 1 is at least partially located radially within the second connecting cylinder 2, the first bracket 3 rotates while attached to the first connecting cylinder 1, and the second bracket 4 rotates while attached to the second connecting cylinder 2.

Description

Technical Field

[0001] The present invention relates to an auxiliary swivel that ensures double safety, comprising a first connecting means, a second connecting means, a first bracket configured to connect a first rope and / or a first carabiner, and a second bracket configured to connect a second rope and / or a second carabiner, wherein the first connecting means and the second connecting means are both rotatably attached.

Background Art

[0002] In modern technical rescue procedures related to logistics, a double safety element is standard. This means that for any operation, two independent safety systems are adopted (for example, two independent anchors are each sandwiched by corresponding connecting parts, two separate pulleys with two ropes attached are connected, etc.). This makes it possible to easily double each safety element, but it is difficult to double the swivel.

[0003] Particularly, in one possible scenario, there may be two parallel ropes from which a load (most commonly a stretcher) is suspended. When this stretcher begins to rotate, these two ropes start to twist together. Placing such a swivel at one end would solve this problem, but it is impossible due to the requirement of ensuring double safety.

Summary of the Invention

Problems to be Solved by the Invention

[0004] An object of the present invention is to provide a swivel that enables double safety in fields such as technical rescue, rope access, or staging rigging.

Means for Solving the Problems

[0005] The above objectives are achieved by the features of the independent claim. Preferred embodiments are defined by the features of the dependent claim.

[0006] Therefore, the objective is, in particular, an auxiliary swivel that ensures double safety when rescuing a person, comprising: a first connecting cylinder configured to receive and / or pass the at least one main rope and / or main swivel; a second connecting cylinder configured to receive and / or pass the at least one main rope and / or main swivel and / or first connecting ring; and at least one The connection is achieved by an auxiliary swivel, comprising a first bracket configured to connect a first auxiliary rope and / or at least one first auxiliary carabiner, and at least one second bracket configured to connect at least one second auxiliary rope and / or at least one second auxiliary carabiner, wherein the first and second connecting cylinders are both rotatably mounted, the first bracket being attached to the first connecting cylinder and the second bracket being attached to the second connecting cylinder.

[0007] Therefore, a key point of the present invention is to provide an auxiliary swivel that, when used in conjunction with a main swivel positioned internally, can ensure double safety in technical rescue or other fields of rope work where double safety is required or strongly desired. In other words, the previously proposed solution allows the main swivel to be inserted into the auxiliary swivel so that two swivels, namely the previously proposed auxiliary swivel and the main swivel, can be used together to achieve double safety throughout the entire safety chain.

[0008] Thus, for example, in the case of two parallel ropes from which a load (e.g., a stretcher) is suspended, even if the stretcher begins to rotate, the proposed auxiliary swivel and main swivel prevent the two ropes from twisting, and therefore the ropes may not begin to twist. As described above, if the hollow space within the first connecting ring is used, and at least two connecting parts are used on each side, and each connecting part is simultaneously fastened to the inner main swivel and the respective brackets of the auxiliary swivel, the safety of the system can be doubled, preferably by housing a main swivel certified for rescue.

[0009] Therefore, in one possible preferred embodiment, the auxiliary swivel comprises two hollow cylinders, a first connecting ring and a second connecting ring, that rotate around each other, and two mounting brackets, a first bracket and a second bracket, connected to the cylinders, thereby allowing the main swivel to be positioned within the auxiliary swivel. In another possible embodiment, the at least one main rope is positioned inside the auxiliary swivel and / or passed through the auxiliary swivel. The main swivel preferably does not have an opening and / or hollow space within its connecting ring. The carabiner, in particular the at least one first auxiliary carabiner and / or the at least one second auxiliary carabiner, can be provided as a connecting part, shackle, etc. The first connecting ring and the second connecting ring are preferably connected so as to be rotatable but not axially displaceable. Preferably, the auxiliary swivel is provided as a load sharing device as specified in the EN 17961:2023 standard. "The first and second connecting rings are rotatably mounted together" preferably means that the first and second connecting rings are rotatable relative to each other by relative rotational motion. The first and second connecting rings are preferably cylindrical and / or can be nested coaxially with each other.

[0010] In a preferred embodiment, the first connecting ring and the second connecting ring are rotatably mounted together, in particular, by a sliding bearing. Preferably, the bearing is provided as a polymer sliding bearing, thereby reducing friction between the first connecting ring and the second connecting ring.

[0011] In another preferred embodiment, the first connecting ring includes and / or is part of a first connecting cylinder, and the second connecting ring includes and / or is part of a second connecting cylinder, and the first connecting cylinder is positioned at least partially radially within the second connecting cylinder. Preferably, the first connecting cylinder and / or the second connecting cylinder each have a ring-shaped profile when viewed from axially above. Preferably, the first connecting ring and / or the second connecting ring are provided as hollow cylinders. The first connecting cylinder is preferably provided as an inner cylinder and / or the second connecting cylinder is provided as an outer cylinder.

[0012] In a further preferred embodiment, the second connecting cylinder has a larger outer diameter than the first connecting cylinder, and the inner diameter of the second connecting cylinder is basically, generally, and particularly coincides with the outer diameter of the first connecting cylinder, and / or the first connecting cylinder extends longer in the axial direction than the second connecting cylinder. Preferably, the inner diameter of the second connecting cylinder is slightly larger than the outer diameter of the first connecting cylinder so that the first and second connecting cylinders are rotatable. The inner diameter of the first connecting cylinder and / or the opening preferably has a radially extending free diameter of 2, 3, 4, 5, 6, 10, 15, 20, 25 or 30 cm, or ≤2, ≤3, ≤4, ≤5, ≤6, ≤10, ≤15, ≤20, ≤25 or ≤30 cm.

[0013] According to another preferred embodiment, the first connecting cylinder has a radially extending collar configured to restrict the axial displacement of the second connecting cylinder. Preferably, the collar is provided as a flange. The second connecting cylinder can be slid outward from the first connecting cylinder to mount the auxiliary swivel. The inner diameter of the second connecting cylinder is preferably slightly larger than the outer diameter of the first connecting cylinder. The collar prevents the first connecting cylinder from sliding in the direction of an expected force. Viewed from above, the collar is preferably provided as a washer or in the shape of a washer. Preferably, the bearing is positioned between the collar and the second connecting cylinder, particularly in the axial direction, to reduce friction as the first and / or second connecting cylinders rotate.

[0014] In a further preferred embodiment, the first bracket is attached at one end to the first connecting cylinder, such that the second connecting cylinder is axially positioned between the collar and the first bracket, and the collar is positioned at the other end of the first connecting cylinder. In this way, the second connecting cylinder can be fixed axially while remaining rotatable between the collar and the first bracket.

[0015] According to another preferred embodiment, the collar and the second connecting cylinder have equal or identical outer diameters, or the collar has a smaller outer diameter than the second connecting cylinder, particularly by 3%, 5%, or 10%. In this way, if the collar and the second connecting cylinder have the same diameter, they do not overlap radially, so that the auxiliary swivel does not get caught on the collar during use. The same advantage is obtained when the outer diameter of the collar is smaller than that of the second connecting cylinder.

[0016] In a further preferred embodiment, the first bracket rotates while attached to the first connecting ring, and / or the second bracket rotates while attached to the second connecting ring. This embodiment is advantageous because the first bracket can rotate aside within the second bracket to easily insert and attach the main swivel.

[0017] According to another preferred embodiment, the pivot axis of the first bracket and / or the second bracket extends perpendicular to the rotatable axis of the first and second connecting rings.

[0018] In a further preferred embodiment, the first bracket is attached to the first connecting ring and / or the second bracket is attached to the second connecting ring by a reliable mechanical engagement such as a rivet, bolt, shape, etc., and / or any other means that enables rotatable connection. Thus, for example, the first bracket can be attached to the first connecting ring and / or the second bracket can be attached to the second connecting ring by connecting the respective mating shapes to the two elements. Preferably, one rivet is positioned for one of the opposing sides. Such rivets enable a simple embodiment for mounting the first bracket and / or the second bracket to rotate.

[0019] In a further preferred embodiment, the first connecting cylinder has two axially extending grooves on its opposing outer portion, thereby allowing the second connecting cylinder, to which the first bracket is riveted, to slide relative to the first connecting cylinder 1. Preferably, two small notches can be placed on the opposing inner portion of the first connecting cylinder, thereby allowing the rivets of the first bracket to be mounted more flatly against the inner surface of the first connecting cylinder 1 by positioning them slightly deeper in their respective holes. This minimizes the risk of interference between the inner rescue main swivel and the heads of these rivets. The previously proposed solution consists of a compact design, so that both brackets can be easily stored by rotating them and stacking them so that they are flat against each other, and can be clipped to the mounting point.

[0020] In another preferred embodiment, the first bracket and / or the second bracket are provided as circular or arched brackets, with their opposing ends attached to the opposing radial sides of the first and / or second connecting ring. Preferably, each of the brackets is provided as a C-shaped or U-shaped bracket when viewed from the side.

[0021] The above objective is further achieved by a swivel mechanism comprising the aforementioned auxiliary swivel and the main swivel, wherein the main swivel is positioned within the first and second connecting rings and / or by a swivel mechanism passing through the first and second connecting rings. Thus, for example, if at least two connecting parts are used on one side of the mechanism, and each of the connecting parts is simultaneously clipped to the main swivel and the auxiliary swivel, the safety of the mechanism is doubled. During normal operation, for example, a load can be applied only to the main swivel, while the auxiliary swivel simply rotates when no load is applied. If the main swivel fails, the auxiliary swivel takes on the load.

[0022] Other exemplary embodiments of the present invention will be described below with reference to the respective drawings. It should be noted that the drawings are merely for illustrating the overall concept of the present invention by way of multiple examples and do not define the protection scope of the present invention. The drawings are not drawn to scale. Each feature should not be construed as essential to the present invention just because it is illustrated.

Brief Description of the Drawings

[0023] [Figure 1] It is a perspective view of an auxiliary swivel according to the present invention. [Figure 2] It is a perspective view of the auxiliary swivel of FIG. 1 seen from above. [Figure 3] It is a perspective view of the auxiliary swivel of FIG. 1 seen from the side.

Embodiments for Carrying Out the Invention

[0024] Hereinafter, the present invention will be described with reference to exemplary embodiments showing an auxiliary swivel according to the present invention. Specifically, FIG. 1 is a perspective view of an auxiliary swivel according to the present invention, FIG. 2 is a perspective view of the auxiliary swivel of FIG. 1 seen from above, and FIG. 3 is a perspective view of the auxiliary swivel of FIG. 1 seen from the side. This auxiliary swivel is intended to enable the main swivel to operate inside this auxiliary swivel that ensures double safety when rescuing people. In this way, two independent safety systems can be adopted for combat operations.

[0025] This auxiliary swivel comprises a first connecting ring 1 provided as a first hollow cylinder 1 and a second connecting ring 2 provided as a second hollow cylinder 2. This first connecting cylinder 1 is arranged inside the second connecting cylinder 2 such that the first connecting cylinder 1 is rotatable with respect to the second connecting cylinder 2. Therefore, the outer diameter of the first connecting cylinder 1 is equal to the inner diameter of the second connecting cylinder 2 or slightly smaller than the inner diameter of the second connecting cylinder 2. Thus, the second connecting cylinder 2 encloses the first connecting cylinder 1 in a substantially contacting state. The first connecting cylinder 1 has an inner diameter that extends to form an opening, for example, having a diameter of 5 cm, where the main swivel (not shown) can be arranged. Alternatively, one or more main ropes can be arranged in this opening. When viewed from above, the first connecting cylinder 1 and the second connecting cylinder 2 have a ring shape. The first connecting cylinder 1 extends longer in the axial direction than the second connecting cylinder 2.

[0026] This auxiliary swivel further comprises a first bracket 3 configured to connect a first auxiliary rope and / or a first auxiliary carabiner (both not shown), and a second bracket 4 configured to connect a second auxiliary rope and / or a second auxiliary carabiner (both not shown). In an alternative form of use, three ropes can be employed, namely a first rope as a first auxiliary rope attached to the first bracket 3, a second rope as a second auxiliary rope attached to the second bracket 4, and a third rope passed through the openings of the first connecting cylinder 1 and the second connecting cylinder 2.

[0027] In a further possible embodiment, the first bracket 3 and the second bracket 4 of the auxiliary swivel and the main swivel are connected together by one or two carabiners, respectively, to ensure double safety, connecting the first and second auxiliary ropes to the first and second main ropes. The first and second auxiliary ropes and the first and second main ropes can also be directly connected to the first bracket 3 and the second bracket 4 of the auxiliary swivel and the main swivel, respectively. In another possible embodiment, the main rope is routed through the first and second connecting cylinders 1 and 2 within the auxiliary swivel.

[0028] The first bracket 3 and the second bracket 4 are each provided as semicircular or arch-shaped brackets having a U-shape when viewed from the side. The opposing ends of the first bracket 3 are attached to opposing radial sides of the first connecting cylinder 1. The opposing ends of the second bracket 4 are attached to opposing radial sides of the first connecting cylinder 2.

[0029] As can be seen in the figure, the opposing ends are attached by extending rivets 5 and 6 radially. In this way, the first bracket 3 is mounted to rotate the first connecting cylinder 1, and the second bracket 4 is mounted to rotate the second connecting ring 2. Thus, the pivot axes of the first bracket 3 and the second bracket 4 extend perpendicular to the rotatable axes of the first connecting cylinder 1 and the second connecting cylinder 2. In Figures 1 and 2, the first bracket 3 and the second bracket 4 extend axially, and in Figure 3, the first bracket 3 and the second bracket 4 are rotated relative to their sides so that a main swivel can be inserted into the opening formed by the first connecting cylinder 1 and the second connecting cylinder 2.

[0030] As can be seen in particular from Figure 3, the first connecting cylinder 1 has two axially extending grooves 9 on opposing parts of its outer surface, which allows the second connecting cylinder 2, to which the second bracket 4 is riveted, to slide relative to the first connecting cylinder 1. The first connecting cylinder 1 has two small notches 10 on its inner surface, which allows the rivets 5 of the first connecting cylinder 1 to be positioned slightly further back, enabling a flatter mounting relative to the inner surface of the first connecting cylinder 1. In this way, the risk of interference between the main swivel and the heads of the rivets 5 is minimized. The first connecting cylinder 1, the second connecting cylinder 2, the first bracket 3, and the second bracket 4 are provided as metal parts such as aluminum.

[0031] As described above, the first connecting ring 1 and the second connecting cylinder 2 are both rotatably mounted. Therefore, the first connecting cylinder 1 has a radially extending collar 8 that limits the axial displacement of the second connecting cylinder 2 in the connected state as shown in Figure 1. This collar 8 is located at one axial end of the first connecting cylinder 1, and the rivet 5 connecting the first bracket 3 is located at the other axially opposite end of the first connecting cylinder 1. In this way, the second connecting cylinder 2 is fixed axially while remaining rotatable between the collar 8 and the first bracket 3. The collar 8 and the second connecting cylinder 2 have the same outer diameter. As a result, the collar 8 and the second connecting cylinder 2 form a sliding bearing 7.

[0032] The connections shown or described between components should be understood as functional connections as a whole. These can be implemented as direct links or as indirect links via multiple other components. The presented order of operations is not mandatory, and alternative orders are possible. These operations can be implemented in various ways. These operations can be implemented in software using program instructions. Alternatively, these operations can be implemented in hardware. Alternatively, these operations can be implemented using a combination of hardware and software. The described embodiments are illustrative and should be understood to be modified and / or supplemented in various ways within the scope of the claims. In particular, any feature described for a particular embodiment can be used alone or in combination with other features of any other embodiment. Each feature described for an embodiment in a particular category can be used in an equivalent manner in an embodiment of any other category. [Explanation of symbols]

[0033] 1. First connecting ring, first connecting cylinder 2. Second connecting ring, second connecting cylinder 3. First bracket 4. Second bracket 5 rivets 6 rivets 7 Bearings 8 Colors 9 grooves 10 Notches

Claims

1. An auxiliary swivel that ensures double safety, A first connecting cylinder (1) configured to pass at least one main rope and / or main swivel, A second connecting cylinder (2) configured to pass at least one main rope and / or the main swivel, A first bracket (3) configured to connect at least one first auxiliary rope and / or at least one first auxiliary carabiner, A second bracket (4) configured to connect at least one second auxiliary rope and / or at least one second auxiliary carabiner It is equipped with, The first connecting cylinder (1) and the second connecting cylinder (2) are both rotatably mounted. The first connecting cylinder (1) is at least partially located within the second connecting cylinder (2) in the radial direction. The first bracket (3) rotates while attached to the first connecting cylinder (1), and the second bracket (4) rotates while attached to the second connecting cylinder (2). Auxiliary swivel.

2. An auxiliary swivel according to claim 1, The first connecting cylinder (1) and the second connecting cylinder (2) are both rotatably mounted by bearings (7). Auxiliary swivel.

3. An auxiliary swivel according to claim 1, The second connecting cylinder (2) has a larger outer diameter than the first connecting cylinder (1), and the inner diameter of the second connecting cylinder (2) is approximately the same as, and particularly the same as, the outer diameter of the first connecting cylinder (1), and / or the first connecting cylinder (1) extends longer in the axial direction than the second connecting cylinder (2). Auxiliary swivel.

4. An auxiliary swivel according to claim 1, The first connecting cylinder (1) has a radially extending collar (8) configured to limit the axial displacement of the second connecting cylinder (2). Auxiliary swivel.

5. An auxiliary swivel according to claim 4, The first bracket (3) is attached at one end to the first connecting cylinder (1), and the collar (8) is positioned at the other end of the first connecting cylinder (1), such that the second connecting cylinder (2) is axially positioned between the collar (8) and the first bracket (3). Auxiliary swivel.

6. The method according to claim 4 or 5, The collar (8) and the second connecting cylinder (2) have the same outer diameter, or the collar (8) has a smaller outer diameter than the second connecting cylinder (2), particularly 3% smaller. Auxiliary swivel.

7. An auxiliary swivel according to claim 1, The pivot axes of the first bracket (3) and / or the second bracket (4) extend perpendicular to the rotatable axes of the first connecting cylinder (1) and the second connecting cylinder (2). Auxiliary swivel.

8. An auxiliary swivel according to claim 1, The first bracket (3) is attached to the first connecting cylinder (1), and / or the second bracket (4) is attached to the second connecting cylinder (2), in particular by rivets (5, 6) and / or bolts. Auxiliary swivel.

9. An auxiliary swivel according to claim 1, The first bracket (3) and / or the second bracket (4) are provided as arch-shaped brackets, with their opposing ends attached to opposing radial sides of the first connecting cylinder (1) and / or the second connecting cylinder (2). Auxiliary swivel.

10. The auxiliary swivel described in claim 1, The main swivel is provided above, The main swivel is positioned inside the first connecting cylinder (1) and the second connecting cylinder (2), and / or passes through the first connecting cylinder (1) and the second connecting cylinder (2). Swivel mechanism.

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