STOP DEVICE WITH ACTUATOR MECHANISM WHICH FEATURES A SEPARATE CAM CARRIER

Description

[0001] The invention relates to a stop device with a base part designed to be attached to an object such as a load or a loading surface, with a bracket part pivotably mounted on the base part about a pivot axis relative to the base part for attaching a stop, lashing, tensioning or lifting device and with an actuating mechanism which has at least one bracket deflection cam and at least one brake button which, with the pivoting movement between the bracket part and the base part, at least partially passes over the bracket deflection cam at a deflection position and which generates a deflection force that increases with decreasing distance from the at least one deflection position and opposes the pivoting movement.

[0002] Such stop devices are known, for example, from DE 10 2018 213 825 A and DE 10 2018 213 827 A. The adjusting mechanism prevents the bracket part from assuming certain pivot positions relative to the base part. This prevents the bracket part from falling onto the object under its own weight and damaging it. The adjusting mechanism can also be used to prevent the bracket part from suddenly flipping under load if it is in an unfavorable position and aligns itself with the load.

[0003] The present invention aims to improve the aforementioned stop devices in such a way that they can be manufactured more cost-effectively and at the same time allow for a greater variety of variants.

[0004] This problem is solved by a stop device according to claim 1.

[0005] Because the cam carrier is designed as a separate component, the stop device can be easily fitted with different positions and / or configurations of deflection cams. Only a different cam carrier needs to be used or the existing one repositioned. No structural modification of the base is required. This allows the stop device to be easily adapted to different applications requiring different deflection positions.

[0006] The solution can be further improved by the following advanced training courses, each of which is advantageous in itself and can be combined in any way.

[0007] In a first advantageous embodiment, the cam carrier can be repeatedly detachable and / or replaceable on the base or bracket part. This repeated detachability and / or replaceability allows the cam carrier to be removed for maintenance purposes or, in the case of different applications, exchanged for other cam carriers. Repeated detachability and replaceability can be achieved, for example, via a screw connection, but also by a welded or soldered connection that can be separated without damaging the base or bracket part.

[0008] The stop device can, in particular, have a plurality of interchangeable cam carriers with differently shaped and / or differently positioned cams. This allows a user to adapt the stop device to their own needs.

[0009] According to a further embodiment, the cam carrier can be attached to the base part or bracket part in different positions. In these different positions, at least one bracket deflection cam can be located in a different deflection position.

[0010] A cam carrier can have multiple deflection positions. In particular, each deflection position can be assigned a bar-type deflection cam, so that the cam carrier can have multiple deflection cams. The brake button is elastically deflected at a bar-type deflection cam.

[0011] According to a particularly advantageous embodiment, the cam carrier is attached to the base part. According to the invention, the cam carrier is located on the side of the bracket part that points away from the base part in the direction of the pivot axis. Such an embodiment is particularly advantageous for large stop devices, since in large sizes there is insufficient space between the base part and the bracket part due to the relatively large size of the base part.

[0012] According to a further advantageous embodiment, the cam carrier can extend at least segmentally, but in particular completely, around the pivot axis. This embodiment simplifies the design of the adjusting mechanism, since in this embodiment the cam carrier extends along the pivoting movement.

[0013] According to a further advantageous embodiment, the cam carrier can be ring-shaped, in particular sleeve-shaped or disc-shaped. The disc can, to secure the bracket part, at least partially cover the bracket part.

[0014] The deflecting cam can project parallel to the pivot axis from the cam carrier towards the base part if the cam carrier is attached to the bracket part, or towards the bracket part if the cam carrier is attached to the base part. The deflecting cam can be essentially wave-shaped, with its apex being defined by two ramps. The apex need not be a point, but can also form a plateau extending over a range of the pivoting movement, along which the brake button is deflected at a constant angle.

[0015] If a deflection position and the cam associated with this deflection position are located at the end of the swivel range of the bracket part, the deflection cam can also have only a single ramp.

[0016] The shape of the deflection cam can be adapted to the specific purpose of the deflection position. If the deflection position serves as a brake, for example, a long ramp can be provided that gradually increases the deflection force.

[0017] The cam carrier can be attached to a stub axle of the base part that supports the bracket section. In particular, the cam carrier can preferably be attached to an end face of the free end of the stub axle in a rotationally secure manner. The end face preferably points towards the pivot axis. In this way, the cam carrier is easily accessible and removable from the outside.

[0018] The brake switch and the cam carrier are resiliently pressed against each other at least in a region around the at least one deflection position. The brake switch is elastically deformed or deflected. The deflection force is preferably generated by the spring-induced pressure. The brake switch preferably comprises a spring for this purpose. In particular, the brake switch can have a leaf spring or be designed as a leaf spring. The brake switch can also be a resilient pressure piece, for example, in the form of a spring-loaded sphere.

[0019] The cam carrier can cover a bearing that holds the bracket part pivotably around the base part, in particular via a bearing gap of this bearing.

[0020] The base section with the attached bracket section can be rotatably mounted on a retaining bolt about a pivot axis perpendicular to the swivel axis. This allows the base section to automatically align itself with the force applied to the bracket section via the stop, lashing, tensioning, or lifting device.

[0021] According to a further advantageous embodiment, at least one deflection position can be located at a distance from the ends of the swivel range of the bracket part relative to the base part. For example, at least one deflection position can be located centrally between the ends of the swivel range. A deflection position can also be located at the point where a bracket plane runs parallel to the axis of rotation.

[0022] A deflection position within the swivel range preferentially causes the shackle to snap shut when it passes over the deflection position. As the shackle approaches the deflection position, an increasing force must first be applied to overcome the deflection force, at least to elastically deflect the brake button, and to swivel the shackle further towards the deflection position. After passing over the deflection position, the shackle snaps shut, and the actuating mechanism pushes the shackle away from the deflection position. The increasing deflection force as the shackle approaches the deflection position results in a force assisting the swivel movement away from the deflection point.

[0023] Snapping is improved by a short, steep bail deflection cam in the direction of pivoting, which also leads to a precisely defined snapping action.

[0024] A deflection position can be located at each end of the swivel range of the bracket section. At these deflection positions, the adjusting mechanism acts as a bracket drop brake, which slows the bracket section before it reaches the ends of the swivel range by the brake button contacting the deflection cam. In this configuration, the bracket deflection cam can extend continuously from one end of the swivel movement to the other at each of the two ends.

[0025] The invention is explained in more detail below by way of example with reference to the accompanying drawings. The same reference numerals are used in the drawings for elements that correspond to each other in terms of function and / or structure.

[0026] In accordance with the above explanations, a feature can be omitted in the described embodiment if the technical effect associated with that feature is irrelevant for a particular application. Conversely, a feature not included in the described embodiment can be added if its technical effect is required in a specific application.

[0027] They show: Fig. 1 a schematic perspective view of a stop device; Fig. 2 a schematic sectional view of the stop device of the Fig. 1 ; Fig. 3 a schematic perspective view of a cam carrier.

[0028] First, the structure of a possible embodiment of a stop device 1 is described with reference to the Figures 1 and 2 explained.

[0029] The stop device 1 has a base part 2 and a bracket part 6 which is pivotably attached to the base part 2 about a pivot axis 4 relative to the base part 2. The pivoting movement of the bracket part 6 is schematically represented by an arrow 8. Fig. 2 The swivel movement 8 can be applied to a swivel range 10 ( Fig. 1 ) be limited, extending between the ends 12 of the pivoting movement 8. The pivoting range or pivoting angle 10 can be less than 180°.

[0030] The stop device can be attached to an object 14, for example a load or a loading platform, via the base part 2. A retaining bolt 16, which can be screwed into the object 14, can be provided for securing the stop device 1. The retaining bolt 16 can have a head. Alternatively, the base part 2 can be secured to the retaining bolt 16, and thus to the object 14, by means of a nut 18 screwed onto the retaining bolt 16.

[0031] The base part 2 is preferably rotatable about a pivot axis 20 around the retaining bolt 16. The pivot axis 20 is, in particular, perpendicular to the swivel axis 4. The pivot axis 20 can be perpendicular to a mounting plane 22 on which the stop device 1 rests when mounted on the object 14. The mounting plane 22 can be parallel to the swivel axis 4. The rotational movement 24 is unlimited; the base part 2 together with the bracket part 6 can therefore rotate about the pivot axis 20 by any multiple of 360° without limitation.

[0032] The bracket section 6 forms an opening 26 and serves for attaching a lashing, lashing, tensioning, or lifting device 28, for example, a strap, chain, carabiner, or hook. The bracket section 6 has a curved prong 30, which can transition into two parallel, straight legs 32. A straight prong may also be present instead of a curved one. The two legs 32 can be connected by a connecting piece (not shown) at a distance from the prong 30, in an area between the base section 2 and the prong 30, if the bracket section 6 is subject to particularly high loads. Each of the tongue-shaped, widened ends 34 of the two legs 32 has an opening 36 through which a corresponding axle stub 38 of the base section 2 projects. An opening 36 and an axle stub 38 each form a bearing 39, here a sliding bearing for the pivoting movement 8.To prevent the ironing part 6 from assuming one or more predetermined relative positions in the swivel range 10 of the swivel movement 8 relative to the base part 2, an adjusting mechanism 40 is provided.

[0033] The structure and function of the adjusting mechanism 40 are described below with reference to the Figures 1 to 3 explained in more detail.

[0034] The actuating mechanism 40 comprises a preferably spring-loaded brake button 42 and a cam carrier 44 attached to the base part 2 or the bracket part 6, which is provided with at least one bracket deflection cam 46. During the pivoting movement 8, the brake button 42 passes over the bracket deflection cam 46 at at least one deflection position 47, the position of which is determined by the position of the bracket deflection cam 46. A deflection position 47 can be defined in Fig. 1The position of the bracket part 6 shown corresponds to either parallel to the axis of rotation 20 or perpendicular to the mounting plane 22. Two further deflection positions 47a, 47b can each be located at the ends 12 of the swivel range 10.

[0035] A stirrup deflector cam 46 is formed by a projection that is at least approximately wavy and has at least one ramp 48.

[0036] The brake button 42 and the at least one deflection cam 46 are preferably pressed resiliently against each other at least at one deflection position 47, 47a, 47b. The brake button 42 is elastically deflected. The cam carrier 44 can be resiliently pressed against the brake button in the region of a deflection position 47, 47a, 47b or a deflection cam 46, and / or the brake button can be resiliently pressed against the cam carrier 44 at least in the region of a deflection position 47, 47a, 47b or the deflection cam 46. In the illustrated embodiment, for illustrative purposes only, the cam carrier 44 is fixedly attached to the base part 2, in particular to an axle stub 38 or its end face 49, while the brake button 42 is resiliently mounted on the bracket part 6. The brake button 42 can be designed as a spring-loaded pressure piece, for example with a ball tensioned by a spring or as a spring itself, for example as a U-shaped leaf spring.Naturally, the cam carrier 44 can also be arranged on the bracket part 6 and the brake button 42 on the base part. In one variant, the cam carrier 44 can be attached to the outer side of the bracket part 6, facing away from the base part 2.

[0037] If the cam carrier 44 is fixed relative to the base part 2, for example, attached to it, the at least one bracket deflection cam 46 projects forward towards the bracket part 6. Conversely, if the cam carrier 44 is fixed relative to the bracket part 6, for example, attached to it, the at least one bracket deflection cam 46 projects forward towards the base part 2. The at least one bracket deflection cam 46 can project radially inwards or outwards with respect to the pivot axis 4, or axially, as shown. Accordingly, in such a configuration, the brake button 42 acts radially outwards or inwards, or axially on the cam carrier 44 or the bracket deflection cam 46.

[0038] In the illustrated embodiment, a deflection position 47a, 47b is located at each end 12 of the pivot range 10 of the pivoting movement 8 of the bracket part 6 relative to the base part 2. Each of these two deflection positions 47a, 47b is associated with a bracket deflection cam 46a, 46b. As the bracket part 6 moves towards the ends 12, the brake button 42 runs onto the ramp 46 of the respective bracket deflection cam 46a, 46b. This generates a deflection force or braking force directed against the pivoting movement. Movement beyond the ends 12 of the pivot range 10 can be blocked or only possible with a very high force.

[0039] A shackle deflection cam 46, located in the middle of the pivoting area 10, causes the shackle part 6 to snap into place at the deflection position 47, which is determined by the position of the shackle deflection cam 46. During the relative movement between the brake button 42 and the shackle deflection cam 46, or rather its apex 52, the brake button 42 is initially deflected increasingly elastically, as with the shackle deflection cams 46a and 46b, so that a deflection force 50 is generated that opposes the pivoting movement and is directed away from the shackle deflection cam 46. When the apex 52 is passed, a snap-in occurs because the force generated by the brake button 42 and the ramp 48 pointing in the pivoting direction now acts as a force supporting the pivoting movement, while the brake button 42 springs back. This process is independent of the direction in which the brake button and the bar deflection cam overlap.To create a clearly defined deflection position where snapping occurs over the shortest possible path along the pivoting movement, the ramps 48 and preferably also the apex 52 are shorter than those of the shackle deflection cams 46a, 46b at the ends 12 of the pivoting range 10. Of course, the braking and snapping behavior can also be adapted to the specific application by adjusting the length of the ramps 48 and the height and length of the apex 52 of a shackle deflection cam 46.

[0040] The cam carrier 44 can be designed in the form of a circular or annular segment or in the form of a circular or annular disk. The cam carrier can extend at least partially around the pivot axis 4.

[0041] The cam carrier can be repeatedly detached or replaced on the base part 2 or on the bracket part 6, or is attached by a fastening element 54 such as a screw. This allows cam carriers with differently designed and / or positioned bracket deflection cams 46 and / or with a different number of bracket deflection cams 46 to be attached to one and the same base part or bracket part, depending on the application. For example, in one embodiment, bracket deflection cams 46a, 46b at the end of the pivot range 10 and / or a deflection position 47 in the middle of the pivot range can be omitted. The bracket deflection cam 46 in the pivot range 10, which causes the bracket part 6 to snap over, can be arranged in a different position on another cam carrier 44, so that the deflection position 47 associated with this bracket deflection cam 46 is shifted.Several snap-action points can also be arranged at different deflection positions along the pivoting movement 8. Furthermore, a locking mechanism for the bracket part 6 can be created by two adjacent bracket deflection cams, so that it is held between two deflection positions or bracket deflection cams 46. This is useful, for example, if the bracket part is to be locked in a pivoted rest position.

[0042] The cam carrier 44 is attached to the end face 49 of the axle stub 38. As shown, it can form a preferably flat disc arranged concentrically to the pivot axis 4, which projects radially beyond the axle stub 38 and covers the bracket part or the end 34 of a leg 32. The cam carrier 44 thus covers the bearing 39 formed by the opening 36 and the axle stub 38 and prevents it from becoming contaminated.

[0043] The cam carrier 44 is repeatedly removable or replaceable on the axle stub 38. This can be achieved, for example, by a fastening element 54, such as a screw. The cam carrier 44 can also be attached to the base part 2 or the bracket part 6 at different angular positions relative to the axis of rotation 4 in order to adapt the angular position of the deflector to different mounting positions of the stop device 1.

[0044] Of course, the disc-shaped cam carrier 44 can also be attached to the bracket part 6, in particular to the ends 34. In this case, the brake button 42 can be attached to the base part 2, in particular to the axle stub 38 or its end surface 49.

[0045] The actuating mechanism 40 can each have two pairs of cam carriers 44 and brake buttons 42, which are preferably opposite each other along the pivot axis 4 with respect to the base part 2.

[0046] If brake button 42 and bar deflector cam 46, 46a, 46b are radially opposite each other, the cam carrier 44 can also be designed in a sleeve shape.

[0047] The cam carrier 44 can also be arranged in a gap 56 between bracket part 6 and base part 2, or between bracket part 6 and retaining bolt 16 or nut 18, provided sufficient space is available. In such a case, it may be advantageous for the cam carrier to form only a segment of a circular ring or to be divided into several circular ring segments, so that it can be removed or replaced when the bracket part 6 is mounted on the base part 2. Each of the segments preferably extends by less than 180° around the axis of rotation to allow for such subsequent assembly.

[0048] In the area between two shackle deflection cams 46, the brake button 42 does not necessarily have to be in contact with the cam carrier 44, which slightly reduces wear. However, especially with large and heavy shackle components, a braking effect can be achieved in the area between two shackle deflection cams 46 by ensuring that the brake button is in constant contact with the cam carrier 44. This facilitates the handling of such shackle components, as part of the shackle component's own weight is absorbed by the resulting braking effect. Reference sign

[0049] 1 Stop device 2 Base part 4 Swivel axis 6 Bow part 8 Swivel movement 10 Swivel angle or swivel range 12 End of swivel movement 14 Object, such as load or loading platform 16 Retaining bolt 18 Nut 20 Pivot axis 22 Mounting plane 24 Rotation movement 26 Opening 28 Stop, lashing, tensioning or lifting device 30 Bow of bow part 32 Leg of bow part 34 End of leg 36 Opening at the end of leg 38 Stub axle 39 Bearing 40 Adjusting mechanism 42 Brake button 44 Cam carrier 46, 46a, 46b Bow deflection cam 47, 47a, 47b Deflection position 48 Lead-in slope 49 End face 50 Deflection force 52 Apex 54 Fasteners 56 Gap

Claims

1. Slinging device (1), comprising a base part (2) configured to be attachable to an object (14), such as a loading platform, a hoop part (6) mounted on the base part (2) so as to be pivotable relative to the base part (2) about a pivot axis (4) for attaching a slinging, lashing, tensioning or lifting means (28), and an adjusting mechanism (40) comprising at least one hoop deflection cam (46, 46a, 46b) and at least one brake plunger (42) which, during the pivoting movement (8) between the hoop part (6) and the base part (2), at least partially sweeps over the hoop deflection cam (46, 46a, 46b) at a deflection position (47, 47a, 47b), and which generates a deflection force opposing the pivoting movement and increasing as the distance from the at least one deflection position (47, 47a, 47b) decreases, wherein the hoop deflection cam (46, 46a, 46b) is arranged on a separate cam carrier (44) mounted on the base part (2) or the hoop part (6), characterized in that the cam carrier (44) is located on the side of the hoop part (6) facing away from the base part (2) in the direction of the pivot axis (4).

2. Slinging device (1) according to claim 1, wherein the cam carrier (44) is arranged on the base part (2) or the hoop part (6) so as to be repeatedly detachable and / or repeatedly replaceable.

3. Slinging device (1) according to claim 1 or 2, wherein the cam carrier (44) is fastened to the base part (2).

4. Slinging device (1) according to any one of claims 1 to 3, wherein the cam carrier (44) is annular.

5. Slinging device (1) according to any one of claims 1 to 4, wherein the cam carrier (44) extends, at least in sections, around the pivot axis (4).

6. Slinging device (1) according to any one of claims 1 to 5, wherein the cam carrier (44) and the brake plunger (42) are resiliently urged against one another at least in a region around a deflection position (47, 47a, 47b).

7. Slinging device (1) according to any one of claims 1 to 6, wherein the brake plunger (42) is resilient.

8. Slinging device (1) according to any one of claims 1 to 7, wherein the hoop deflection cam (46) is bounded by at least one ramp surface (48).

9. Slinging device (1) according to any one of claims 1 to 8, wherein the cam carrier (44) is seated on a stub shaft (38) of the base part (2), the stub shaft (38) supporting the hoop part (6).

10. Slinging device (1) according to any one of claims 1 to 9, wherein the cam carrier (44) covers a bearing (39) between the base part (2) and the hoop part (6).

11. Slinging device (1) according to any one of claims 1 to 10, wherein the base part (2), together with the hoop part (6) mounted thereon, is rotatably mounted on a retaining pin (16) about a rotation axis (20) extending perpendicularly to the pivot axis (4).

12. Slinging device (1) according to any one of claims 1 to 11, wherein at least one deflection position (47, 47a, 47b) is spaced apart from the ends (12) of a pivoting range (10) of the pivoting movement (8) of the hoop part (6) relative to the base part (2).

13. Slinging device (1) according to any one of claims 1 to 12, wherein a respective deflection position (47, 47a, 47b) is provided at each end (12) of the pivoting range (10) of the pivoting movement (8).