Hook ring

Abstract

The invention relates to a shackle (2) comprising: a frame (20) having an engagement end (22) and a pivot end (24) defining an opening (4) therebetween; a lever (40) having a top end (44) and a lever connection element (46), the lever (40) pivotably coupled to the pivot end (24) and configured to pivot between an open position and a closed position such that the engagement end (22) and the top end (44) are removably engaged; a sleeve (60) movably mounted on the rod (40) and having a sleeve connection element (66) corresponding to the rod connection element (46) wherein the thread is configured to partially move the sleeve (60) along the rod (40) between a first position and a second position and the thread is disengaged in the second position; and a mechanical member (80) configured to apply a force to the sleeve (60) to avoid non-autonomous movement of the sleeve (60); wherein the sleeve (60) surrounds at least a portion of the tip (44) in the second position.

Description

Technical Field

[0001] The present invention relates to a carabiner, comprising a frame with an opening, a rod pivotally coupled to the frame, and a sleeve movably mounted on the rod. Background Art

[0002] Carabiners can be practically used for rock climbing or other applications that require an easily detachable connection. The user of the carabiner may wish to insert a rope through the opening into the frame so that the carabiner surrounds the rope. The sleeve can be used to selectively fix the rod to prevent it from pivoting relative to the frame. In known carabiners, the user may accidentally move the sleeve on the rod and / or pivot the rod.

[0003] Therefore, the object of the present invention is to provide a solution to enhance the safety of the carabiner. In particular, the object is to avoid or reduce the drawbacks of known solutions. Summary of the Invention

[0004] The object of the present invention is achieved by the features of the carabiner of the present invention. The preferred embodiments are described in detail in the detailed description and the figures.

[0005] This object is achieved by a carabiner comprising: A frame having a joining end and a pivot end, with an opening defined between the joining end and the pivot end; A rod having a top end and a rod connecting element, the rod being pivotally coupled to the pivot end and configured to pivot between an open position and a closed position so that the joining end and the top end are detachably joined; A sleeve movably mounted on the rod, the sleeve having a sleeve connecting element corresponding to the rod connecting element, wherein threads are configured to move the sleeve segmentally along the rod between a first position and a second position, and the threads disengage in the second position; and A mechanical member configured to exert a force on the sleeve to prevent involuntary movement of the sleeve, in particular the force is directed to the second position; Wherein the sleeve is configured to prevent the pivoting movement of the rod about the pivot end, in particular in the second position, and in particular in the second position, the sleeve at least surrounds a part of the top end.

[0006] Briefly, this object is particularly solved by a carabiner comprising at least one of the following: a frame, a rod pivotally coupled to the frame, and a sleeve movably mounted on the rod to selectively be at the top end or the second position to fix the rod and prevent pivoting. In particular, the sleeve is configured to move along the rod only in a part away from and / or not including the second position when rotating the sleeve on the rod.

[0007] In particular, the present invention provides a carabiner with a rod, the carabiner having a sleeve which can engage or interact with the rod through a connecting element (such as a thread and / or engaging protrusions and / or grooves or the like). When the sleeve is in the second position, the carabiner can be fixed such that the sleeve surrounds the frame, so that the carabiner is closed and the rod cannot pivot. In this position, the sleeve blocks the rod. One concept of the present invention is that when the sleeve is in the second position, the connecting element of the sleeve does not engage with the connecting element of the rod, so that the rotation of the sleeve does not loosen the rod relative to the frame. In addition, a mechanical member pushes the sleeve towards the second position, so that the sleeve does not accidentally (involuntarily) fall or cause the connecting elements to accidentally engage or interact again. Instead, the user may need to push down on the sleeve and, for example, rotate the sleeve to cause the connecting elements to engage again. The present invention specifically provides that the sleeve can move along the rod, and the thread between the sleeve and the rod only engages within a section of the movement range.

[0008] The present invention relates to the fact that in some cases, external forces caused by external factors such as wind, vibration, and friction between the rope and the carabiner itself are the main reasons for the accidental opening of the sleeve. Here, the present invention provides a method for improving the use in the event of an external force.

[0009] With the present invention and with the various aspects described in the present application, it is advantageously possible to easily fix the carabiner in the closed position with a lower probability of the carabiner being accidentally opened. This is because the sleeve can only be moved out of the second position when the user forcibly engages the thread by pushing down on the sleeve against the force of the mechanical member. The present invention improves safety and is easy to implement, for example, by restricting the extension of the thread along the rod.

[0010] The sleeve can have at least one contact point, particularly in the form of at least one inner protrusion, especially an upper inner protrusion and / or a lower inner protrusion. The at least one contact point can be a first contact point and / or a top contact point. The at least one contact point can be a second contact point and / or a bottom contact point.

[0011] A carabiner or snap hook, sometimes also called a biner or crab, is also called a clip or climbing clip. A carabiner is a locking ring, a metal ring, usually with a spring-loaded gate or opening, used to reversibly connect components. Generally, carabiners are applied to systems where safety is crucial, for example, in situations where a person must be fixed due to a certain height at which a person may theoretically fall.

[0012] Carabiners can be used in rope-intensive activities such as rock climbing, fall arrest systems, arboriculture, caving, sailing, hot air balloons, rope rescue, construction, industrial rope work, window cleaning, white water rescue, and / or acrobatics. Thus, as a possible solution provided by the present invention, the use of carabiners in one or more of the above applications / activities is disclosed as a possible solution provided by the present invention.

[0013] The frame generally includes a curved or wound base member, such as substantially annular or ring-shaped. The frame is typically a one-piece formed member made of metal. The frame generally has two ends that define an opening or a gate. The engaging end is configured to engage with a rod. The pivoting end is configured to be pivotally coupled to the rod, particularly such that the rod can selectively engage with the engaging end (i.e., can be pivoted to open or close the carabiner). Generally, the rod is configured to rotate inwardly at the frame. When the rod is closed (closed position), the carabiner forms a substantially continuous closed loop. When the rod is open (open position), the closed position does not exist, and / or the rod pivots away from the engaging end to provide a certain distance between the top end (rod) and the engaging end (frame). When closed, the top end can engage with the engaging end in multiple directions.

[0014] The rod generally includes an elongated base member, such as substantially in the shape of a pin or a bolt. The rod can be understood as an elongated assembly. The rod is typically rigid. The rod generally supports and / or holds a sleeve. The rod can include at least a partially cylindrical surface. The rod can also be curved and / or composed of curved surfaces. The rod and the frame can be designed to engage at the pivoting end and define a pivot axis at the pivoting end. The rod has a connecting element, such as a thread or an external thread.

[0015] The sleeve or bushing can be a rotating component. The sleeve can be at least substantially rotationally symmetric in shape. Generally, the sleeve has an opening for the rod to pass through the sleeve. The sleeve can be circumferentially closed in shape. The sleeve can be configured to rotate on the rod. The sleeve has a connecting element, such as a thread or an internal thread. Depending on the position of the sleeve on the rod, the connecting element of the sleeve can engage and / or interact with the connecting element of the rod. In particular, when the sleeve is away from the second position, engagement occurs to prevent the sleeve from moving along the rod by rotation when in the second position. It is possible that when the sleeve is in the first position, the threads engage; however, when the sleeve is in the first position, the threads can also not engage. However, it is generally provided that the threads engage at a certain position on the rod between the first position and the second position of the sleeve.

[0016] The threads mentioned here, particularly external threads and / or internal threads, are generally understood as metric threads and / or thread-like geometries configured for mechanical engagement. The corresponding threads are generally configured to have similar dimensions in terms of diameter, pitch, and / or length.

[0017] The sleeve being movable on the rod means that the sleeve can be displaced along the rod and / or can rotate about the rod. When the connecting elements engage and / or interact, the sleeve can move along the rod only depending on the rotation of the sleeve. When the threads are disengaged, the sleeve can move along the rod independently of the rotation of the sleeve.

[0018] The mechanical element can be or include an energy storage device, such as a spring. The mechanical element can be configured to store mechanical energy or potential energy. The mechanical element can be in the form of at least one, two or more magnets. For example, magnets arranged to provide an attractive and / or repulsive force can store energy and / or apply a force to the sleeve.

[0019] The spring typically takes the form of a coil spring or a helical spring. The spring is typically made of steel. The spring can be shaped to have a substantially constant diameter. The spring can be made of wire with a substantially constant wire diameter. The spring can be configured to surround the rod and / or be received within the sleeve. The spring is typically arranged between the sleeve and the rod. Typically, the spring is covered by the sleeve to protect the spring.

[0020] Typically, the snap ring can include at least one magnet for providing a locking function, such as with respect to the position of the sleeve on the rod and / or the position of the rod on the frame.

[0021] At least one contact point, such as a first contact point of the sleeve and / or an upper inner protrusion, can be configured to abut against the mechanical element. For example, it is possible that the sleeve is located on the mechanical element, in particular via the first contact point, especially in all positions it can assume relative to the rod. At least one contact point can be configured to counteract the action of the force generated by the mechanical element. It is also possible that in a second position, the sleeve is not necessarily located on the mechanical element, especially the first contact point is not necessarily located on the mechanical element. The first contact point can be a shoulder, especially a circumferential shoulder. The first contact point can extend radially inwards and / or extend at least partially in the circumferential direction. There can be multiple first contact points. The first contact point can advantageously center the sleeve relative to the rod and make the snap ring relatively compact.

[0022] The sleeve can have at least one contact point, where the upper contact point or the first contact point and / or the lower contact point or the second contact point are configured to stop on the rod along the rod in the direction from the lower position or the first position to the upper position or the second position. For example, the rod can have means that mechanically correspond to at least one protrusion of the sleeve for stopping the sleeve on the rod. The means can be embodied on the lower side of the rod connecting element / connecting element of the rod, or can be embodied in the geometric design of the rod, for example, the rod has corresponding stop elements, for example, in the direction towards the top and away from the pivot end above the rod connecting element / connecting element of the rod. This simply fixes the sleeve on the rod.

[0023] The rod may have at least one contact point or rod contact point, especially in the form of at least one outer protrusion. At least one contact point of the rod, especially at least one outer protrusion, may be configured to cooperate with the first contact point. At least one rod contact point may be formed at the tip or between the tip and the pivot end. At least one rod contact point may be a shoulder, especially a circumferential shoulder. At least one rod contact point may extend radially outwards and / or extend at least partially in the circumferential direction. There may be multiple rod contact points. At least one rod contact point may advantageously center the sleeve relative to the rod and make the snap hook relatively compact. At least one rod contact point may be arranged towards the tip and away from the pivot end above at least one contact point. In the sense of mechanical mating, at least one contact point may be configured to rest on at least one rod contact point. This provides an easy-to-use and compact snap hook.

[0024] The first contact point may be arranged in the first region or upper region of the sleeve. In other words, considering that the sleeve usually has two opposite ends, the first contact point may be arranged at or near one end of the sleeve. This provides space for the mechanical component to be accommodated along the sleeve to protect the mechanical component. This also provides mechanical stability for the cooperation between the rod and the sleeve and prevents the sleeve from getting stuck.

[0025] At least one protrusion, especially at least one contact point and / or at least one rod contact point, may be integrally formed on the sleeve and / or the rod. The sleeve / rod may be machined at least partially by turning and / or milling. In this way, the sleeve / rod is easy to machine. In addition, the corresponding protrusion is strong and not easily broken. This enhances safety.

[0026] The second contact point may be arranged in the second region or lower region of the sleeve. The second contact point may be designed in a manner similar to the first contact point or at least one protrusion described herein (related to the individual features described herein). Considering that the sleeve usually has two opposite ends, the second contact point may be arranged at or near one end of the sleeve. This provides space for the mechanical component to be accommodated along the sleeve to protect the mechanical component. This also provides mechanical stability for the cooperation between the rod and the sleeve and prevents the sleeve from getting stuck.

[0027] The mechanical component may be configured to apply a force to the sleeve according to gravity. For example, gravity may be used to automatically push the sleeve to the second position. The mechanical component may be configured to apply a force to the sleeve based on the energy stored in the mechanical component. In particular, the mechanical component may store energy, such as energy from user input, such as the energy when the user moves the sleeve away from the second position.

[0028] The mechanical component can be integrated in the sleeve. For example, the mechanical component can be formed together with the sleeve. The mechanical component and the sleeve can be provided as a component and / or a common part. The mechanical component and the sleeve can in particular be provided as a plastic component, especially if the mechanical component is a spring device or a spring formed together with the sleeve. In particular, the sleeve can be a plastic sleeve that especially includes the mechanical component.

[0029] The sleeve can have a ring element to form at least one contact point. The ring element can be inserted into a groove of the original part forming the sleeve. The ring element and the sleeve can cooperate effectively with each other at least along the rod.

[0030] The rod can have a shoulder disposed between the rod connecting element and the top end. Alternatively or additionally, the rod can also have one / the shoulder disposed between the rod connecting element and the top end. The mechanical component can abut against the shoulder and / or can be configured to abut against the shoulder. The shoulder can be disposed adjacent to the rod connecting element or the connecting element of the rod. The shoulder can be disposed on top of / axially adjacent to the rod connecting element so that the mechanical component is disposed on top of / axially adjacent to the rod connecting element. This provides a compact design of the mechanical component and a sturdy housing.

[0031] The engaging end can have a particularly tapered and / or chamfered tip. The engaging end can include a protrusion and / or a thickened portion for engaging with the rod. This provides enhanced engagement and a reduced risk of injury during use.

[0032] The top end can have a groove and is configured to surround the engaging end, especially the tip, at least from two opposite sides in the closed position. In this way, the rod can not be pushed sideways from the engaging end or tilted with respect to the rod.

[0033] The groove can be tapered and / or chamfered, substantially corresponding to the shape of the engaging end. The top end can be designed to engage with the protrusion and / or the thickened portion so as to form a form-fit with the engaging end along the rod. This is helpful for situations where the snap hook is overloaded and undergoes severe deformation.

[0034] The sleeve can have an inner surface that is substantially conical and / or tapered and can be configured to surround the engaging end. Therefore, the upper end of the sleeve facing the top end of the rod can be designed to smoothly engage with the engaging end of the frame. The sleeve can be formed in segments to be generally funnel-shaped to facilitate movement to surround the engaging end and to achieve automatic positioning / centering of the rod relative to the frame when securing the snap hook (moving the sleeve to the second position).

[0035] The outer side of the sleeve can have corrugations. For example, the outer side of the sleeve can have small grooves and / or indentations, such as with a depth between 0.1 mm and 1 mm, to provide a better grip for the user's fingers.

[0036] The rod can be spring-loaded relative to the frame to automatically pivot from an open position to a closed position. For example, the rod can automatically close without manual active pushing. The mechanical components and / or springs can be integrated into the frame, in the pivot end, such as leaf springs.

[0037] Optionally, the frame, rod, and / or sleeve are made of aluminum alloy, especially anodized. The sleeve can be a different color from the rod to facilitate observing the position of the sleeve on the rod. This color can be achieved by anodizing and / or painting.

[0038] The rod and the frame can be pivotally coupled using bolts and / or rivets, which can be made of a metal different from aluminum to provide wear resistance; the metal different from aluminum can be steel. The mechanical components can be made of a similar material, especially steel.

[0039] Throughout this disclosure, the term "or" can be replaced with "and / or". Thus, when using "or", it does not necessarily mean only the alternatives are named.

[0040] These and other aspects of the invention will be apparent from the embodiments described below and will be elucidated by reference to these embodiments. Brief Description of the Drawings

[0041] In the drawings:

[0042] Figure 1 A snap hook with a frame is shown in a side perspective view, where the rod is pivotally mounted on the frame, the sleeve is movably mounted on the rod, and the sleeve is in a second position;

[0043] Figure 2 Shown in a detailed perspective view Figure 1 of the snap hook, where the sleeve is moved to a first position, with a cutout for illustrating that the mechanical component is held within the sleeve, and the mechanical component pushes the sleeve on the rod to the second position;

[0044] Figure 3 Another embodiment of the snap hook is shown in a sectional view; and

[0045] Figure 4 Another embodiment of the snap hook is shown in a sectional view. Detailed Description

[0046] This description includes program or method aspects when describing the structural features of the present invention; in this way, the structural features of the present invention can be well understood. It should be emphasized to the reader that these structural features can be extracted from the described context, thus forming various aspects of the present invention, without any hesitation or intermediate generalization issues. It should also be emphasized to the reader that any structural feature described below can be understood as a separate aspect of the present invention, distinct from known solutions, even though they may be extracted from the context.

[0047] Figure 1 and Figure 2 Shows a snap hook 2, including a frame 20 having an engagement end 22 and a pivot end 24. An opening 4 is defined between the engagement end 22 and the pivot end 24.

[0048] The snap hook 2 further includes a rod 40 having a top end 44, and the external thread of the rod serves as a rod connection element 46. The rod 40 is pivotally coupled to the pivot end 24 via a steel bolt and / or rivet. The rod 40 is configured to pivot between an open position and a closed position such that the engagement end 22 and the top end 44 engage detachably. In Figure 1 and Figure 2 the rod 40 is in the closed position. When the rod 40 pivots in the clockwise direction based on the views shown in Figure 1 and Figure 2 the rod 40 can be in the open position.

[0049] The snap hook 2 further includes a sleeve 60 movably mounted along the rod 40. The sleeve 60 has an internal thread that serves as a sleeve connection element 66 corresponding to the rod connection element 46. The external thread and the internal thread are configured to enable the sleeve 60 to move segmentally along the rod 40 between a first position and a second position.

[0050] In Figure 1 the sleeve 60 is in the second position. In this position, the external thread and the internal thread are disengaged to prevent rotation of the sleeve 60 from causing the sleeve to move downward and / or along the rod 40.

[0051] In Figure 2 the sleeve 60 is in the first position. In this position, the external thread and the internal thread are engaged, and in particular, the sleeve 60 is fixed to prevent axial movement, unless the sleeve 60 rotates.

[0052] In Figure 1 and Figure 2 in particular, in all positions that the sleeve 60 may occupy, the sleeve 60 is spring-loaded in the direction along the rod 40 and towards the second position. This includes in the second position, for example, as shown in Figure 1As shown, the sleeve 60 is spring-loaded in the same direction, for example to hold the sleeve 60 in place and reduce play. The spring loading is provided by means of a mechanical member 80 (in particular a spring, especially a helical spring).

[0053] In particular, the hook 2 includes a mechanical member 80 which is configured to push the sleeve 60 towards the second position. In the second position, the mechanical member 80 continuously pushes the sleeve 60, keeping the sleeve 60 in the second position.

[0054] The mechanical member 80 is configured to exert a force on the sleeve 60 to prevent involuntary movement of the sleeve 60, the force being directed towards the second position.

[0055] The mechanical member 80 holds the external and internal threads at a distance 6 from each other, as Figure 1 shown, in particular Figure 3 and Figure 4 shown.

[0056] In the second position, as Figure 1 shown, the sleeve 60 surrounds a part of the top end 44. In the first position, as Figure 2 shown, the sleeve 60 does not surround the part of the top end 44 which is surrounded in the second position.

[0057] In Figure 2 when the sleeve 60 is in the first position, the mechanical member 80 is compressed and the external and internal threads are arranged to fix the sleeve 60 along the rod 40. Rotating the sleeve 60 in this position causes the sleeve 60 to move along the rod 40. In contrast, rotating the sleeve in the second position as Figure 1 shown does not cause the sleeve 60 to move along the rod 40.

[0058] As can be seen from Figure 2 the sleeve 60 has two contact points, where the first contact point 61 is configured to abut against the mechanical member 80 and the second contact point 62 is configured to rest on the rod 40 in the direction from the first position to the second position. Thus, the second contact point 62 is configured to cooperate with the rod.

[0059] As Figure 1 and Figure 2 a specific feature of the embodiment, the second contact point 62 rests on a stop element 52 provided on the rod 40. In this case, the stop element 52 is provided as a ring mounted on the rod 40.

[0060] The first contact point 61 is arranged in the upper region of the sleeve 60, i.e. in the first region 64. The first contact point 61 is integrally formed on the sleeve 60. The sleeve 60 is a machined aluminium part.

[0061] Here, the mechanical member 80 provides a force to the sleeve 60 based on the energy stored in the mechanical member 80. The mechanical member 80 is integrated in the sleeve 60.

[0062] Optionally, a magnet can be integrated in the hook 2 to provide a force to the sleeve 60 so as to prevent the sleeve 60 from non - autonomously moving to the second position under the action of the force.

[0063] The second contact point 62 is arranged in the lower region of the sleeve 60, i.e., in the second region 65. The ring element 68 forms the second contact point 62. The ring element is inserted into the sleeve.

[0064] The second region 65 faces the pivot end 24. The first region 64 faces the engagement end 22 and / or the top end 44. The rod 40 penetrates the sleeve 60 through the above - mentioned first region 64 and second region 65.

[0065] In particular, it can be understood that the first region 64 and / or the second region 65 extend along the sleeve 60, reaching at least 1% and for example at most 10% of the length of the sleeve 60 along the rod 40 and starting from the ends of the sleeve 60 respectively.

[0066] In particular, the first contact point 61 extends on the sleeve 60 and, for example, provides a central positioning for the sleeve 60.

[0067] The inner diameter formed by the first contact point 61 is at least as large as the outer diameter of the rod 40. In particular, the inner diameter of the first contact point 61 is at least 1% larger than the outer diameter, especially at most 10% larger.

[0068] The rod 40 has a shoulder 42 arranged between the rod connecting element 46 and the top end 44. The mechanical member 80 is configured to abut against the shoulder 42 and the first contact point 61, so as to spring - load the sleeve 60 along the rod and towards the second position.

[0069] The engagement end 22 has a tapered and chamfered tip. The engagement end 22 is provided with protrusions and / or thickened portions that generally extend obliquely to the rod 40.

[0070] The top end 44 has a groove 50 and is configured to surround the engagement end 22 from two opposite sides in the closed position and is inclined to the rod. The protrusions and / or thickened portions cause the top end 44 to surround the engagement end 22 along the rod 40 from the other two opposite sides in the closed position. The groove 50 is tapered and chamfered and substantially corresponds to the shape of the engagement end 22.

[0071] The sleeve 60 has an inner surface 70 that is substantially conical and / or tapered and is configured to surround the engagement end 22. In addition, the outer surface of the sleeve 60 has corrugations.

[0072] The rod 40 is spring - loaded relative to the frame 20 to automatically pivot from the open position to the closed position, i.e., to automatically close.

[0073] The frame 20, the rod 40, and the sleeve 60 are made of aluminum alloy. In each case, the aluminum alloy is anodized for corrosion protection and coloring purposes.

[0074] Figure 3 There is shown Figure 1 and Figure 2 an embodiment of the present invention which is very similar to the embodiments of Figure 1 and Figure 2 wherein the second contact point 62 rests on the stop element 52 of the rod 40, and the stop element 52 is embodied by the rod connecting element 46. (In particular,

[0075] Figure 4 There is shown Figure 1 and Figure 2 an embodiment of the present invention which is very similar to the embodiments of Figure 1 wherein the sleeve 60 has only a single first contact point 61 (instead of Figure 1 the two contact points in Figure 4 In this regard, the rod 40 is designed differently from Figures 1 to 3 :

[0076] Referring to Figure 1 and Figure 2 a possible method of using the snap hook 2 is provided by the present invention. The method can start when the rod 40 is closed. The first step includes manually (i.e., by hand) moving the sleeve along the rod 40 towards the pivot end 24, wherein the sleeve connecting element 66 contacts the rod connecting element 46 at a position between the second position and the first position of the sleeve 60, and wherein the sleeve 60 at least partially surrounds the engagement end 22. The first step generally includes the mechanical member 80 being compressed. The second step includes rotating the sleeve on the rod 40 such that the external thread and the internal thread engage with each other, which involves rotating the sleeve in a coherent manner with the pitch of the external thread and the internal thread. Of course, the above steps can overlap in time. By further rotating the sleeve 60, the sleeve 60 no longer surrounds the engagement end 22 and / or the top end 44, and / or the sleeve 60 can remain in the first position. The third thread optionally pivots the rod 40 to the open position.

[0077] Another method can start when the rod 40 is open and / or the sleeve 60 is in the first position. In a first optional step, the rod 40 can be placed in the closed position, and the sleeve 60 can be placed in the first position (if not already). In a second step, the sleeve 60 can be rotated away from the first position, where the engaged external and internal threads cause the sleeve 60 to move along the rod 40 and towards the top end 44 and / or the engagement end 22. In a third step, the engagement between the external and internal threads is lost. In the third step, the mechanical member 80 pushes and / or moves the sleeve 60 along the rod 40, causing the sleeve 60 to automatically be in the second position. Typically, the sleeve is spring-loaded by the mechanical member 80. Finally, the second position is reached, and the sleeve 60 at least partially surrounds the engagement end 22 and / or the top end 44. In this way, the snap ring 2 is fixed in an advanced manner by the present invention.

[0078] List of Reference Numerals 2 Snap ring 4 Opening 6 Distance 20 Frame 22 Engagement end 24 Pivot end 40 Rod 42 Shoulder 44 Top end 46 Rod connection element 48 Rod contact point 50 Groove 52 Stop element 60 Sleeve 61 First contact point 62 Second contact point 64 First region 65 Second region 66 Sleeve connection element 68 Ring element 70 Inner surface 80 Mechanical member

Claims

1. Carabiner (2), including: A frame (20) having an engagement end (22) and a pivot end (24), defining an opening (4) between the engagement end (22) and the pivot end (24); a lever (40) having a top end (44) and a lever connecting element (46), the lever (40) being pivotally coupled to the pivot end (24) and configured to pivot between an open position and a closed position so that the engagement end (22) and the top end (44) are removably engaged; a sleeve (60) movably mounted on the rod (40) and having a sleeve connecting element (66) corresponding to the rod connecting element (46), wherein the rod connecting element (46) and the sleeve connecting element (66) are configured to partially move the sleeve (60) along the rod (40) between a first position and a second position, and the rod connecting element (46) and the sleeve connecting element (66) are disengaged in the second position; as well as a mechanical member (80) configured to apply a force to the sleeve (60) to prevent involuntary movement of the sleeve (60); Wherein the sleeve (60) is configured to prevent pivotal movement of the rod (40) about the pivot end (24).

2. The shackle (2) according to claim 1, wherein the sleeve (60) has at least one contact point, wherein a first contact point (61) is configured to abut against the mechanical member (80).

3. The shackle (2) according to claim 1, wherein the sleeve (60) has at least one contact point, wherein a first contact point (61) or a second contact point (62) is configured to stop along the rod (40) in a direction from the first position to the second position.

4. The shackle (2) according to any one of claims 1 to 3, wherein the rod (40) has at least one rod contact point (48), which is configured to cooperate with at least one contact point of the sleeve (60), wherein the rod contact point (48) is formed in the top end (44) or between the top end (44) and the pivot end (24).

5. The shackle (2) according to claim 3, wherein the first contact point (61) is arranged in a first area (64) of the sleeve (60), and / or the second contact point (62) is arranged in a second area (65) of the sleeve (60).

6. The shackle (2) according to claim 2 or 3, wherein the first contact point (61) is integrally formed on the sleeve (60).

7. The shackle (2) according to any one of claims 1 to 3, wherein the mechanical member (80) is configured to provide a force to the sleeve (60) according to gravity and / or based on energy stored in the mechanical member (80).

8. The shackle (2) according to any one of claims 1 to 3, wherein the mechanical component (80) is integrated in the sleeve (60), the sleeve (60) and the mechanical component (80) being provided as a plastic component.

9. The shackle (2) according to claim 2 or 3, wherein the sleeve (60) has a ring element (68) to form the at least one contact point.

10. The shackle (2) according to any one of claims 1 to 3, wherein the rod (40) has a shoulder (42), which is arranged between the rod connecting element (46) and the top end (44), or between the rod connecting element (46) and the pivot end (24), and wherein the mechanical member (80) is configured to abut against the shoulder (42).

11. The shackle (2) according to any one of claims 1 to 3, wherein the engagement end (22) has a tapered and / or chamfered tip.

12. The shackle (2) according to any one of claims 1 to 3, wherein the top end (44) has a groove (50) and is configured to surround the engagement end (22) from at least two opposite sides in the closed position.

13. The shackle (2) according to claim 12, wherein the groove (50) is tapered and / or chamfered, substantially corresponding to the shape of the engagement end (22).

14. The shackle (2) according to any one of claims 1 to 3, wherein the sleeve (60) has a substantially conical and / or tapered inner surface (70) and is configured to surround the engagement end (22); and / or wherein the outer side of the sleeve (60) has corrugations.

15. The shackle (2) according to any one of claims 1 to 3, wherein the rod (40) is spring-loaded relative to the frame (20) to automatically pivot from the open position to the closed position, and / or wherein the frame (20), the rod (40) and / or the sleeve (60) are made of an aluminum alloy and are anodized.

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