STOP DEVICE WITH SNAP MECHANISM
Patent Information
- Authority / Receiving Office
- DE · DE
- Patent Type
- Patents
- Current Assignee / Owner
- Filing Date
- 2019-07-30
- Publication Date
- 2026-03-05
AI Technical Summary
Existing lifting devices are prone to flipping under load, particularly when subjected to forces perpendicular to the opening, leading to potential damage to the object, lifting device, and other equipment.
A stop device with a snap mechanism that deflects the connecting part away from the snap-over point, generating a braking force during pivoting, which reduces the likelihood of flipping by orienting the connecting part perpendicular to the support surface at the snap-over point.
Prevents the connector from assuming a dangerous flipped position, ensuring stability and safety by deflecting it away from the snap-over point, thereby preventing damage and enhancing load handling capabilities.
Description
[0001] The invention relates to a stop device with a base part for attachment to an object, such as a load or a loading surface, and with a connecting part which is pivotably held on the base part about a pivot axis relative to the base part, wherein the base part has a bearing surface for bearing on the object and the connecting part has an opening for attaching a stop, lifting, lashing or tensioning device, wherein a snap mechanism is provided.
[0002] Such lifting devices are known. WO 2017 / 125492 A1 relates to a lifting point for lifting loads, comprising a pivoting body in combination with a hook loop that can be engaged with a lifting accessory, and a fastening element for attaching the lifting point to a load, wherein the fastening element and the pivoting body are connected by a pivot joint that allows the body to pivot about an axis relative to the fastening element. The sections of the fastening element and the pivoting body that engage in the pivot joint are each manufactured from a single part to form a permanent connection, with one and / or the other of these sections being additively manufactured from metal.EP 1 840 070 A2 discloses a connection device for attaching a lashing or lashing device to an object to be transported or lashed, comprising a fastening part for attachment to the object and a connection part with a connecting eye for the lashing or lashing device, as well as a connecting part linking the fastening part and the connection part. The connection part is rotatably mounted in a retaining opening of the connection device that extends through the connection part, and a clamping spring is provided for the connection part. The connection part has an outwardly open recess for the clamping spring, adjoining the retaining opening and set off from it, with the clamping spring contacting the connection part only in the area facing the fastening part. A problem with such lashing devices is the potential for the connection part to flip under load.
[0003] DE 33 01 960 C2 describes a stop device according to the preamble of claim 1, in which the fastening part forms a bearing for at least one anchoring element of the connecting part that is pivotable and / or rotatable about an axis. The anchoring element is pressed against a support surface of the bearing by at least one spring, wherein the connecting part is provided with detent surfaces and / or detent grooves for the spring that serve to lock it in different positions.
[0004] WO 2012 / 152911 A1 relates to a device for securing luggage, comprising a base that is attached to a vehicle and a buckle / eyelet that is pivotably mounted on the base about an axis. The device has elastic means to hold the eyelet in a predetermined angular position.
[0005] DE 20 2012 103 405 U1 relates to an anchor point with a lower part for attaching to an object and an upper part connected to the lower part, comprising an arc-shaped section framing an opening in which a pivotable and sliding eyelet is inserted. A clamping element projects into the opening, such that the unloaded eyelet is held against a section in the opening opposite the clamping element and is fixed even in a position misaligned with the vertical.
[0006] AT 412 269 B describes a fixing element for a connecting eye of a connecting device intended for attaching a stop or lashing device.
[0007] DE 20 2004 003 237 U1 relates to a device for securing luggage in a motor vehicle, comprising a base that is rigidly connected to a body panel of the motor vehicle and an eyelet that is pivotably mounted on the base about a pivot axis by means of a connecting element. A locking element is associated with the eyelet to fix it in a predetermined holding position.
[0008] Such a flip can occur if the lifting device is subjected to a load in an impermissible direction. For example, if the lifting device is loaded perpendicular to the plane of the opening while the connecting part is stationary, the shackle may only pivot belatedly and under already high load; the shackle then flips over. This flipping creates load peaks that can damage the object, the lifting device, and / or the lifting, lashing, and tensioning equipment.
[0009] The invention is therefore based on the objective of creating a stop device in which this danger is reduced.
[0010] According to the invention, this problem is solved for the aforementioned stop device by the fact that the snap mechanism has at least one snap-over point along a pivoting movement of the connecting part about the pivot axis, wherein the snap mechanism deflects the connecting part from the snap-over point and generates a braking force in the direction of the pivoting movement in front of the snap-over point, which braking force is reduced in the direction of the pivoting movement behind the snap-over point, and that at the snap-over point the connecting part is oriented essentially perpendicular to the support surface.
[0011] A snap mechanism designed in this way prevents the connector from assuming a position at the snap-over point on its own. The snap mechanism thus deflects the connector away from the snap-over point. Therefore, the dangerous flipping of the connector at the snap-over point cannot occur. At the snap-over point, the connector is essentially perpendicular to the contact surface. With this arrangement of the snap-over point, the flipping of a connector oriented perpendicular to the contact surface can be prevented.
[0012] The invention described above can be further improved by the following features, each of which is advantageous in itself and can be combined with each other as desired.
[0013] According to an advantageous embodiment of the stop device, the base part can be rotatably mounted about a pivot axis, in particular about a component forming the bearing surface, such as an internal bushing. The pivot axis, in addition to the swivel axis, further improves the self-alignment of the connecting part in the direction of the load acting upon it. Advantageously, the pivot axis runs perpendicular to the swivel axis or perpendicular to the bearing surface. In such a case, the bearing surface is formed by an element rotatable relative to the base part, for example, the internal bushing.
[0014] The braking force can decrease continuously or discontinuously as the connecting part moves past the snap-lock point. For example, the braking force can decrease continuously over at least a portion of the pivoting motion as the connecting part moves past the snap-lock point and the distance from it increases. In another embodiment, the sign of the braking force can change after passing the snap-lock point, meaning that the braking force is directed in the direction of the pivoting motion after passing the snap-lock point. According to another variant, the braking force can decrease abruptly after passing the snap-lock point, for example, becoming equal to or close to zero. The variants mentioned above can also be combined in any way. For example, after passing the snap-lock point, the braking force can first change its sign and then decrease to zero or a value close to zero.
[0015] The braking force preferably also includes a restoring force. This restoring force generates a restoring torque that opposes the pivoting movement. Furthermore, the braking force can include a frictional force component, which is generated by friction. When the connecting part is stationary, the braking force acts as a holding force to fix the connecting part in its position.
[0016] According to a further advantageous embodiment, the snap mechanism can have at least one base-side section and at least one connection-side section, which preferably work together to generate the snapping action.
[0017] To avoid being larger than conventional stop devices without a snap mechanism, the snap mechanism is preferably located at least partially in at least one gap between the connecting part and the base part. Such a gap can, for example, be formed between one leg of the connecting part and the base part. In this configuration, the base part can be located, in particular, between the two legs, resulting in two gaps. With two gaps, the snap mechanism can be designed in two parts, with one part located in each of the two gaps. The parts of the snap mechanism located in the two gaps can be symmetrical to each other, for example, symmetrical about a central plane of the stop device, which can be oriented, in particular, perpendicular to the pivot axis, or rotationally symmetrical, in particular rotationally symmetrical about the axis of rotation.
[0018] To reliably deflect the connecting part from the snap-lock point, a further advantageous embodiment allows the braking force and / or restoring force acting against the pivoting movement to increase with decreasing distance from the snap-lock point, at least in a section upstream of it. Consequently, the closer the connecting part gets to the snap-lock point, the greater the driving force required to move it towards it. This makes it more difficult for the connecting part to reach the snap-lock point.
[0019] According to a further advantageous embodiment, the snap mechanism can comprise at least one spring arrangement which is elastically deformed to a greater extent closer to or directly at the snap point than at a distance from the snap point in the pivoting direction. The spring arrangement can be configured, in particular, to enable the snapping action and to generate the braking force due to the elastic deformation.
[0020] The spring assembly can be located on the base part, i.e., arranged on the base part side. It can also be located on the connection part, i.e., arranged on the connection part side. Furthermore, the spring assembly can extend, at least partially, into a gap between the base part and the connection part. If several spring assemblies are provided, then, according to a further embodiment, at least one spring assembly can be located on the base part and at least one spring assembly on the connection part. The snap mechanism can have several spring assemblies.
[0021] The spring assembly can include at least one spring which, particularly in the case of a base-side arrangement, at least partially surrounds the base part or, particularly in the case of a connection-side arrangement, the connection part. This surrounding action allows the spring to be secured without structurally weakening the respective part. In such a configuration, the spring can be designed as a clip spring or a spring clamp.
[0022] Alternatively, the spring assembly can include a spring-loaded pressure piece, for example a ball-type pressure pin, a spring bolt or a locking pin that is inserted into an opening.
[0023] The spring can be deformed at least at the snap point, and preferably also before and / or after the snap point, in a direction parallel to the pivoting motion to generate the restoring force. Alternatively or additionally, the spring can be deformed perpendicular to the pivoting motion to, for example, generate a frictional force acting against the pivoting motion. To generate the frictional force, the elastically deformed spring assembly presses against an opposing friction surface.
[0024] The spring assembly can, for example in the case of a base-side arrangement, have a section projecting away from the base towards the connection part, or, for example in the case of a connection-side arrangement, a section projecting away from the connection part towards the base. In the case of a base-side arrangement, the projecting section can interact with the connection part at least at the snap-in point. In the case of a connection-side arrangement, the projecting section can interact with the base part at least at the snap-in point.
[0025] The projecting section can be part of the spring, for example, a projection formed by the spring. Alternatively, the projecting section can also be formed by a resiliently held body located between the spring assembly on the base part and the connecting part, or between the spring assembly on the connecting part and the base part. In a ball-type push-button pin, for example, the resiliently held body is a ball; in a locking pin, it is a pin.
[0026] In a spring that encompasses the base part by at least 180°, two diametrically opposed projecting sections may be present. Thus, a spring encompassing the base part may have two opposing projecting sections that are opposite the legs of the connecting part extending away from the pivot axis.
[0027] To effect the snapping action, the snap mechanism can have at least one detent projection that is located opposite the spring assembly at at least one snapping point. At this snapping point, the detent projection interacts with the spring assembly, for example, by the spring assembly snapping over the detent projection during the pivoting movement. The detent projection can be part of a friction surface against which the elastically deformed spring assembly bears, at least partially, along the pivoting movement to generate the frictional force.
[0028] Depending on whether the spring assembly is located on the connector or the base, the at least one detent can be situated opposite each other on either the base or connector. Preferably, the detent projects away from the connector towards the base in a direction parallel to or perpendicular to the pivot axis when the spring assembly is located on the base, or away from the base towards the connector when the spring assembly is located on the connector. The detent can, in particular, project into the gap between the connector and the base.
[0029] In certain applications, it may be desirable to have several spaced-apart snap-action points along the pivoting movement. To achieve this, a plurality of detent projections can be arranged around the pivoting axis according to a further embodiment. Preferably, the plurality of detent projections interact with a single spring assembly each, in order to minimize the design complexity.
[0030] According to another variant, the detent projections can also extend radially outwards from an axis or stub of the connecting part relative to the pivot axis, or radially inwards towards the connecting part or its axis or stub. In such a configuration, the detent projections interact with a spring arrangement that is also radially oriented, i.e., perpendicular to the pivot axis.
[0031] Preferably, the snap-action process occurs when two projections move past each other at the snap-action point under elastic deflection of at least one of the two projections. During the snap-action, the detent projection and the projecting section of the spring assembly are in contact at the at least one snap-action point, with at least the spring assembly under deflection.
[0032] The detent can also be designed to be elastically deflectable. It does not necessarily have to be made of solid or rigid material. For example, the detent can be formed by a spring or a resiliently mounted body.
[0033] If at least one further snap-lock point is provided along the pivoting movement, the connecting part is preferably aligned at an acute angle or at least approximately parallel to the support surface at this at least one further snap-lock point. In such a design, a snap-lock point or a pair of snap-lock points can be used to fix the connecting part in a specific position. For example, the connecting part can be locked between a snap-lock point and the support surface to create a secure non-use position. In another embodiment, the connecting part can be locked between two adjacent locking projections in the pivoting direction. According to yet another embodiment, the connecting part can be held at a distance from the support surface to facilitate grasping the connecting part by hand or attaching a sling, lifting, lashing, or clamping device.
[0034] A snap-action mechanism can also be used as a fall arrestor, since the braking force slows the falling of the connecting piece as it moves towards the snap-action mechanism. If the braking force at a given point is equal to or greater than the weight of the connecting piece, the connecting piece will be held at that point.
[0035] A frictional force opposing the pivoting motion can be generated on at least one flank of the detent projection, for example, by friction between the elastically deformed spring assembly and the flank. If the motion is stopped because the braking force is equal to or greater than the driving force of the pivoting motion, the braking force can be used as a holding force to keep the connecting part in the position where the pivoting motion was stopped. The exact location of this holding point on the flank of the detent projection depends on the magnitude of the driving force of the pivoting motion. A holding point can be located on either side of the snap-action point. Furthermore, a restoring force can be generated by a deflection of the spring assembly parallel to the pivoting direction and / or by a flank that extends outside the friction cone.
[0036] The braking, holding, and / or restoring force profile along the pivoting movement can be influenced by the shape of the detent's flanks and its height. A tall detent, which in particular generates a large deflection of the spring assembly or the spring itself, produces a high braking force. Steep flanks result in a force that increases sharply towards the snap point and then drops rapidly after passing the snap point. A less steep flank produces a force that increases less rapidly or drops less rapidly after passing the snap point. By using progressively or degressively increasing flanks, the braking force profile can be adapted to specific requirements.
[0037] Preferably, at the snap-action point that interacts with the connecting part oriented at or near the perpendicular to the bearing surface, the flanks of the detent projection are steeper than at at least one further snap-action point located closer to the bearing surface or mounting plane along the pivoting movement. The steeper flanks result in a more precisely defined snap-action point, while the less steep flanks cause a gradual increase in the braking, holding, and / or restoring force.
[0038] The invention is explained in more detail below by way of example with reference to different embodiments and the drawings. For the sake of simplicity, the same reference numerals are used in the drawings for elements that correspond to each other in terms of function and / or structure.
[0039] As explained above, the features described for an embodiment can be modified. For example, a feature of an embodiment can be omitted if its technical effect is irrelevant for a particular application. Conversely, a feature, such as a feature of another embodiment or a feature described above, can be added to an embodiment if the technical effect of that feature is relevant for a specific application.
[0040] They show: Fig. 1 a schematic front view of a stop device according to the invention; Fig. 2 a schematic side view of the stop device of the Fig. 1 ; Fig. 3 a schematic side view of a base part of the stop device of the Fig. 1 ; Fig. 4 a section along line IV-IV of the Fig. 1 Fig. 5a schematic representation of another stop device; Fig. 6 a schematic sectional view along line VI-VI of the Fig. 5 ; Fig. 7 a schematic representation of another stop device; Fig. 8 a schematic representation of a detail of the Fig. 7 ; Fig. 9 a schematic sectional view of another stop device; Fig. 10 a schematic sectional view of another stop device; Fig. 11 a schematic sectional view of another stop device.
[0041] First, the structure and functions of the stop device 1 according to the invention will be described with reference to the exemplary embodiment of the Figs. 1 and 4 An example will be provided.
[0042] The stop device 1 has a base part 2 and a connecting part 6 which is pivotable about a pivot axis 4 relative to the base part 2 and is attached to the base part 2.
[0043] The base part 2 has a support surface 8, which serves to support an object 10, for example a load or a loading area.
[0044] The connecting part 6 has an opening 12 for attaching a lashing, lashing, lifting, or tensioning device (not shown). For example, a hook, carabiner, shackle, rope, and / or strap can be attached to the opening 12. The connecting part 6 is at least approximately U-shaped and has two legs 14 extending from the pivot axis 4 and the base part 2. The legs 14 are opposite each other with respect to the base part 2, so that the base part 2 is located between the legs. At the end of each leg 14 facing the base part, there is an axle or axle stub 15 that extends coaxially with the pivot axis 4 into the base part 2.
[0045] A gap 16 is formed between the base part 2 and the connection part 6. The opening 12 can be delimited from the base part 2 by a strut 18, which extends from one leg 14 to the other leg 14, preferably parallel to the pivot axis 4.
[0046] The base part 2 can be rotatable relative to the object 10 about a pivot axis 20, so that the connecting part 1 can align itself by pivoting the pivot axis 4 and rotating about the pivot axis 20 along a force applied by the stop, lifting, lashing, or clamping device. To ensure rotatability relative to the object 10, the contact surface 8 can, for example, be formed by a bushing 22 rotatable relative to the base part 2, which at least partially penetrates the base part in the direction of the pivot axis 20. A pivot bearing 24, for example a rolling bearing or sliding bearing, is located between the bushing 22 and the base part 2. The bushing 22 preferably projects from the side of the base part 2 facing away from the connecting part 6.
[0047] A mounting plane 26 defined by the support surface 8 is preferably parallel to the pivot axis 4 and / or perpendicular to the rotation axis 20. The rotation axis 20 preferably runs perpendicular to the pivot axis 4 and can in particular intersect the pivot axis 4.
[0048] The pivoting movement of the connecting part 6 about the pivot axis 4 is represented by the double arrows 28.
[0049] The stop device 1 is provided with a snap mechanism 29, which has at least one snap point 30, preferably a plurality of snap points 30, along the pivoting movement 28 of the connecting part 6 about the pivot axis 4. A snapping action takes place at a snap point. During the snapping action, the snap mechanism 29 generates a braking force 32 upstream of the snap point 30, directed opposite to the pivoting movement 28, which is reduced downstream of the snap point 30 in the direction of the pivoting movement 28. The reduction of the braking force 32 at the snap point can be continuous or, preferably, discontinuous. During the reduction, downstream of the snap point 30, the braking force 32 can be directed in the direction of the pivoting movement 28, so that a sign reversal occurs at the snap point.Alternatively, the braking force can decrease abruptly behind the flip point 30, for example dropping to approximately zero.
[0050] Preferably, the snap-in point 30 is located at a position where the connecting part 6 is oriented at least approximately perpendicular to the mounting plane 26. For example, an opening plane 34 defined by the opening 12, which may be a compensating plane if the opening 12 is not planar, can run parallel to or through the axis of rotation 20. Further snap-in points 30 can be arranged such that an acute angle 36 is formed between the connecting part 6 located at the further snap-in point 30 and the mounting plane 26, and / or the connecting part 6 runs parallel to the mounting plane 26. Thus, for example, snap-in points 30 can be located at at least one angle of approximately 60°, 45°, 30°, 0°, and / or -5° to -30° to the mounting plane. Preferably, the snap-in points 30 are located symmetrically on both sides of the perpendicular 38 to the mounting plane 26.
[0051] To generate the snap-over points 30, the snap mechanism 29 of the embodiment of the Figs. 1 to 4 At each snap-action point 30, a locking projection 40 is provided. The flanks 41 of a locking projection 40 can have different steepnesses. Likewise, different locking projections can have flanks of different steepnesses. The heights of the locking projections 40 can also differ. In the exemplary embodiment of the Figs. 1 to 4 The locking projections 40 are located on the base part 2 and protrude in the gap 16 to the opposite connection part 6 or the respective opposite leg 14.
[0052] The snap mechanism 29 further comprises at least one spring assembly 42 which interacts with the at least one detent projection 40 at least towards the snap-over point. In the illustrated embodiment, the spring assembly 42 is located on the connecting part 6. The spring assembly 42 therefore moves with the connecting part 6 along the pivoting movement 28. The detent projections 40 are preferably arranged at the same distance from the pivoting axis 4, so that during the pivoting movement 28 the spring assembly 42 successively passes over the detent projections 40.
[0053] As shown, a spring arrangement 42 projecting towards the base part 2 and into the gap 16 can be present on each leg 14.
[0054] The spring assembly 42 can have at least one spring 44 which is deflected at least at one snap-on point 30. The spring 44 can at least partially encircle the connecting part 6, in particular a leg 14, for example by being designed as a bow or clamp spring. A projection 46 of the spring 44 can interact directly with the detent projections 40 by snapping over the detent projections 40 at a snap-on point 30.
[0055] During the pivoting movement 28, the spring assembly 42 is increasingly deflected by its flanks 41 as it approaches the snap point 30, generating a deflecting or braking force 32 that opposes the pivoting movement 28. The rate at which the braking force 32 builds up per unit angular movement of the pivoting movement 28 is determined by the steepness of the flanks 41. A shallow flank 41 builds up the braking force 32 over a larger portion of the pivoting movement 28 than a steep flank. The magnitude of the braking force 32 is determined by the height of the detent projection 30. The higher the detent projection 40, the greater the braking force. The detent projection 30 and its flanks 41 can generate a frictional force and / or a restoring force, both of which contribute to the braking force.The restoring force differs from the frictional force in that it not only slows down the pivoting motion but also generates a restoring torque acting in the opposite direction to the pivoting motion. The frictional force, on the other hand, only slows down the pivoting motion. The restoring force can be generated by deforming the spring assembly parallel to the pivoting motion and / or by redirecting the frictional force on a flank located outside the friction cone.
[0056] In the illustrated embodiment, the snap mechanism 29 preferably also serves as a fall arrestor, which can hold the connecting part 6 at least under its own weight at a distance from the mounting plane 26. This is achieved by the fact that the detent projection 40 at the corresponding snap-over point is sufficiently high to decelerate the falling of the connecting part 6 under the influence of gravity and to stop it before it reaches the mounting plane 26 and before it snaps over the snap-over point 30.
[0057] To prevent springback, the flank 41, which increasingly deflects the spring assembly 42 along the pivoting movement 28 towards the mounting plane 26, can be inclined less steeply than, for example, the other flank 41, which is located between the detent projection 40 and the mounting plane 26. This results in a gradual build-up of the braking force, while the steep flanks create a defined transition point when the connecting part is oriented vertically, which only slightly affects the remaining movement of the connecting part around the vertical.
[0058] The additional snap-lock points 30, where the connecting part is parallel or at an acute angle 36 to the mounting plane 26, can also be used to lock the connecting part, for example, into a non-use position 48, in which the bracket rests against the mounting plane 26 or the object 10 and is secured in this position by the snap-lock point 30.
[0059] Next, the exemplary embodiment of the Figs. 5 and 6 described, whereby for the sake of simplicity only the differences to the previous embodiment have been discussed.
[0060] For example, in the embodiment of the Fig. 5 A fastening device 50 is shown, with which the stop device 1 can be attached to the object 10. The fastening device 50 is, for example, a screw bolt that is inserted through the bushing 22.
[0061] In the exemplary embodiment of the Figs. 5 and 6The spring assembly 42 is located on the base part 2. The spring 44 is U-shaped and has a spring projection 46 at two points opposite the connecting part 6, which interacts with a detent projection 40 on the leg side and the connecting part side, respectively. The spring 44 is essentially U-shaped, with the spring projection 46 formed on both legs. The spring assembly 42 surrounds the base part 2, at least partially. It is captive and held on the base part, for example, by being held in a pocket 52 of the base part, which may be closed from above by a top part 54 of the bushing.
[0062] In this design, there is only a single snap-over point 30 when the connecting part 6 or the opening 12 or opening plane 34 is aligned perpendicular to the support surface 8.
[0063] At the snap-in point, the two locking projections 40 on the connection side snap into place during the pivoting movement 28 via the spring arrangement 42 or the projections 46 of the spring 44.
[0064] The deformation of the spring before reaching the snap point 30 generates a braking force 32 before reaching the snap point 30. After passing the snap point 30, the spring 44 pushes the legs 14 away from the snap point 30.
[0065] Instead of the in Figs. 5 and 6 In the variant shown with a U-shaped bracket spring, two individual springs can of course also be provided on the base side, each opposite the legs 14.
[0066] Furthermore, in the embodiment of the Figs. 5 and 6 the snap mechanism 29 also in the at least one gap 16 between connection part 6 and base part 2.
[0067] In the design of the Figs. 7 and 8There are three snap-action points 30. At each snap-action point 30 there is a spring arrangement 42 in the form of a spring-loaded pressure piece 56, for example a ball-type pressure pin, which is at least partially embedded in the base part 2.
[0068] The snap mechanism 29 further comprises a detent projection 40, which here is formed by a clamping or spring-loaded spring 44 that at least partially engages one of the legs 14 of the connecting part 6. In this embodiment, the detent projection 40 is therefore spring-loaded. Alternatively, the detent projection 40 can be configured as in the embodiment of the Figs. 5 and 6It may also be rigid, for example, formed by a projection created by leg 14. At the snap-in points 30, the detent projection 40 moves over the spring arrangement 42 located at each snap-in point 30. Shortly before the snap-in points 30, which are located along the pivoting movement 28 towards the mounting plane 26, the connecting part 6 is braked, as in the design of the Figs. 1 to 4 .
[0069] Naturally, the spring-loaded pressure piece 56 can also be arranged on the connecting part 6 opposite the base part 2, and the locking projections 40 on the base part 2. Alternatively, instead of the spring-loaded pressure pieces 56, locking projections formed solid from the base part 2, which are, for example, spherical, can also be present. In this case, the spring 44 is part of the spring assembly 42.
[0070] In the embodiments of the Figs. 1 to 8The spring assembly 42 is arranged at the snap-action point essentially axially to the pivot axis 4 opposite the at least one detent projection 40. In the embodiments of the Figs. 9 to 11 In contrast, the spring assembly 42 is located essentially radially opposite the at least one detent projection. This makes it possible to arrange the snap mechanism 29 within the base part 2. The arrangement within the base part 2 protects the snap mechanism 29 from mechanical damage.
[0071] In the embodiment of the Fig. 9The spring assembly 42 is arranged between the underside 58 of the connecting part 6, facing the support surface 8, and the support surface 8. The spring assembly 42 can be securely attached between a lower part 60 of the base part 2, for example the bushing 22, and the base part 2. In this embodiment, the connecting part 6 has, for example, at least one detent projection 40 on its axis or its stub axle 15, projecting radially towards the pivot axis 4, which interacts with the corresponding spring projection 46 at the snap point 30.
[0072] In order to create several snap-together points 30 along the pivoting movement 28 in this configuration, several radial detent projections 40 can be provided on the outer circumference of the axle stub 15 extending parallel to the pivoting axis 4 in the direction around the pivoting axis 4.
[0073] Here too, instead of the detent projection 40 on the connecting part, a spring arrangement 42 can be provided, which interacts with corresponding radially inwardly projecting detent projections 40 of the base part at the snap-in points 30.
[0074] In Fig. 10 A spring-loaded pressure piece 56 is inserted into the base part 2 as a spring arrangement 42. The spring-loaded pressure piece is aligned perpendicular or radially to the pivot axis 4.
[0075] In the exemplary embodiment of the Fig. 11 The snap mechanism 29 has a friction element 62 located between the spring 44 and the detent projection 40. Because of the friction element 62, a spring projection 46 is unnecessary, as the friction element 62 forms an equivalent projection. The friction element 62, for example a ball, can be securely held in the spring assembly 42. In contrast to the ball-type pressure pin 56 of the Fig. 10The spring 44 is a leaf spring. Here too, several detent projections 40 can be present along the pivoting movement 28 around the pivoting axis 4 in order to create several snap-action points 30 along the pivoting movement 28. Reference sign
[0076] 1 Stop device 2 Base part 4 Swivel axis 6 Connection part 8 Support surface 10 Object 12 Opening 14 Leg 15 Axle or axle stub 16 Gap 18 Strut 20 Pivot axis 22 Bushing 24 Swivel bearing 26 Mounting plane 28 Swivel movement 29 Snap mechanism 30 Snap point 32 Braking force 34 Opening plane 36 Acute angle 38 Vertical position of the connection part 40 Detent projection 41 Flank of the detent projection 42 Spring assembly 44 Spring 46 Projection of the spring assembly 48 Non-use position 50 Fastening means 52 Pocket 54 Top of the bushing 56 Spring-loaded pressure piece 58 Bottom of the connection part 60 Bottom of the base part 62 Friction element
Claims
1. A stop device (1) comprising a base part (2) for attachment to an object (10) such as a load or loading surface, and comprising a connecting part (6) held on the base part so as to be pivotable about a pivot axis (4) relative to the base part, wherein the base part has a support surface (8) for support on the object and the connecting part has an opening (12) for attaching stop, lifting, lashing, or tensioning means, wherein a snap mechanism (29) is provided, which includes at least one snap-over point (30) along a pivot movement (28) of the connecting part (6) about the pivot axis (4) and generates, in the direction of the pivot movement (28) before the snap-over point (30), a braking force (32) directed against the pivot movement (28), the braking force (32) being reduced in the direction of the pivot movement (28) behind the snap-over point, characterized in that the snap mechanism (29) deflects the connecting part (6) away from the snap-over point (30), and the connecting part (6) is aligned essentially perpendicular to the support surface (8) at the snap-over point (30).
2. The stop device (1) according to claim 1, characterized in that the snap mechanism (29) includes at least one portion on the base part side and at least one portion on the connecting part side.
3. The stop device (1) according to any one of claims 1 to 2, characterized in that the snap mechanism (29) is located at least partially in a gap (16) between the connecting part (6) and the base part (2).
4. The stop device (1) according to any one of claims 1 to 3, characterized in that the braking force (32) increases against the pivot movement (28), at least in sections, in the direction of the pivot movement before the snap-over point (30) with decreasing distance from the snap-over point (30).
5. The stop device (1) according to any one of claims 1 to 4, characterized in that the snap mechanism (29) comprises a spring arrangement (42), which, when the connecting part (6) reaches the snap-over point (30), is deflected more strongly than when the connecting part (6) is spaced apart from the snap-over point (30).
6. The stop device (1) according to claim 5, characterized in that the spring arrangement (42) includes at least one spring (44) that at least partially surrounds the base part (2) or the connecting part (6).
7. The stop device (1) according to claims 5 or 6, characterized in that the spring arrangement (42) includes a projection (46) projecting away from the base part (2) toward the connecting part (6) or projecting away from the connecting part (6) toward the base part (2).
8. The stop device (1) according to any one of claims 5 to 7, characterized in that the snap mechanism (29) includes at least one latching projection (40) that interacts with the spring arrangement (42) at least at the at least one snap-over point (30).
9. The stop device (1) according to claim 8, characterized in that the at least one latching projection (40) is arranged on the connecting part (6).
10. The stop device (1) according to any one of claims 8 or 9, characterized in that a plurality of latching projections (40) is arranged around the pivot axis (4).
11. The stop device (1) according to claim 7 and any one of claims 8 to 10, characterized in that at least at the at least one snap-over point (30), the latching projection (40) and the projection (46) of the spring arrangement (42) abut against each other upon deflection of at least the spring arrangement (42).
12. The stop device (1) according to any one of claims 1 to 11, characterized in that at the at least one further snap-over point (30), the connecting part (6) is aligned at an acute angle (36) or parallel to the support surface (8).
13. The stop device (1) according to any one of claims 1 to 12, characterized in that at the at least one further snap-over point (30), the connecting part (6) is held, at least under its own weight, at a distance from a mounting plane (26) spanned by the support surface (8).
14. The stop device (1) according to any one of claims 12 or 13, characterized in that at the at least one further snap-over point (30), a latching projection (40) is provided, the flanks (41) of which are less steep than the flanks (41) of the latching projection (40) of a snap-over point for the connecting part (6) located at or closer to the vertical (38).