Overrun device for a trailer

Description

Field of invention

[0001] The present invention relates to an overrun device for a trailer and to a trailer with such an overrun device. background

[0002] Overrun devices for trailers are generally known. An overrun device is typically a mechanical assembly used on trailers to brake the trailer when the towing vehicle decelerates. In particular, an overrun device allows the trailer to brake synchronously with the towing vehicle. Known overrun devices increase the stability of the trailer while driving and thus improve safety. In particular, they can prevent swaying and / or other uncontrolled behavior of the trailer. DE202019104843 A1 shows a conventional overrun brake coupling where the locking elements are attached to the bearing housing.

[0003] Overrun brakes are used particularly on motor vehicle trailers, such as car trailers (e.g. caravans, horse trailers, cargo trailers and the like), agricultural trailers and / or truck trailers.

[0004] Overrun brakes are safety-relevant components in several respects. Firstly, as described above, the overrun brake controls the trailer's braking. A malfunctioning overrun brake can therefore impair or even prevent the trailer's braking. Secondly, the overrun brake typically forms a connecting element that links the trailer to the towing vehicle. If the overrun brake fails (for example, due to breakage), the connection between the towing vehicle and trailer can be severed. This uncontrolled separation of the towing vehicle and trailer not only leads to damage to the trailer and / or the towing vehicle but also poses a significant danger to other road users.

[0005] Therefore, high demands must be placed on the reliability of the overrun device. Among other things, the overrun device must be designed for the towing capacity of the trailer and the towing vehicle. Furthermore, it is sometimes mandatory that the overrun device has an emergency braking mechanism or be able to trigger an emergency braking mechanism on the trailer if the trailer becomes detached from the vehicle. High demands are also placed on the strength and load-bearing capacity of the materials used. For example, Regulation No. 55 of the United Nations Economic Commission for Europe (UNECE) of 28 August 2010 stipulates that all components whose failure could cause the vehicle and trailer to separate must be made of steel.

[0006] These stringent requirements mean that well-known overrun brake systems are very robust and made of steel. However, this heavy-duty construction results in a very high weight for the overrun brake system, thus reducing the trailer's payload capacity accordingly. Description of the invention

[0007] It is therefore the object of the present invention to provide an overrun device for a trailer, as well as a trailer with such an overrun device, with which the aforementioned disadvantages can be overcome, at least in part. In particular, the overrun device should be lightweight and also ensure a secure connection between the trailer and a towing vehicle.

[0008] This problem is solved by an overrun device according to claim 1 and by a trailer according to claim 14. Further aspects of the invention are set out in the dependent claims and the following description.

[0009] In particular, the problem is solved by an overrun device for a trailer, wherein the overrun device comprises a drawbar, at least one locking element, and a bearing housing. The drawbar has a first end that points in the forward direction of travel. At this first end, the drawbar can be coupled to a towing vehicle. Coupling can be achieved via a ball coupling (i.e., a classic car trailer hitch) or via any known type of trailer hitch, such as a jaw coupling. Accordingly, a coupling element (e.g., a ball coupling element, a receptacle for a jaw coupling bolt, and / or the like) can be provided on the drawbar for coupling to a towing vehicle.

[0010] The bearing housing is made of a light metal, plastic, or composite material, and the drawbar is mounted within it so that it can slide. Furthermore, the drawbar is designed to actuate a trailer brake when it is moved relative to the bearing housing in the opposite direction of travel. Thus, the drawbar serves to brake the trailer if it collides with the towing vehicle, as can occur, for example, when the towing vehicle brakes or when traveling downhill.

[0011] The locking element is separate from the bearing housing and is designed to be permanently attached to the trailer. This connection between the trailer and the locking element provides additional stabilization to the area of ​​the trailer to which the locking element is attached, enabling it to withstand higher bending loads and / or torques (especially those that cause twisting).

[0012] Furthermore, the locking element features a stop that limits the movement of the drawbar relative to the bearing housing in the forward direction of travel. In other words, the locking element prevents the drawbar from being pulled off the trailer. Because the drawbar is coupled to the vehicle and also secured to the trailer, it effectively prevents the trailer from separating from the vehicle, even if, for example, the bearing housing breaks. This design allows the bearing housing to be constructed using lightweight materials (i.e., as a light metal housing, a plastic housing, or a composite housing), since, due to the locking element, it is not a component subject to failure. The locking element and the drawbar can be made of steel or primarily of steel. This lightweight design allows the overall weight of the overrun device to be reduced, thus increasing the payload of the corresponding trailer.

[0013] The locking element can include a through-opening through which the drawbar passes. A circumferential rim of the through-opening completely surrounds the drawbar. Alternatively or additionally, the locking element can include a recess that at least partially surrounds the drawbar. For example, the locking element can be designed as a locking bracket that is placed over the drawbar and attached to the trailer, either directly or indirectly. The locking element can be bolted, welded, riveted, and / or otherwise fastened. This provides additional stabilization to the area of ​​the trailer to which the locking element is attached. Consequently, it can withstand higher bending loads and / or torques (especially those that cause twisting).

[0014] If the locking element is designed as a locking bracket, the locking bracket surrounds the pull rod radially, preferably encompassing at least 180° of the outer surface of the pull rod.

[0015] Alternatively or additionally, the locking element can include a projection. The projection can engage in a corresponding recess on the pull rod. For example, the pull rod can have a slot or a longitudinal groove into which the projection of the locking element (e.g., a bolt) engages. The projection and / or recess can encompass the stop.

[0016] The drawbar may have a flanged section. The flanged section may be integral with the drawbar or attached to a section of the drawbar. In particular, the flanged section may be located at or form a second end of the drawbar, with the second end opposite the first. The flanged section is designed to engage the stop of the locking element to limit the maximum displacement of the drawbar relative to the bearing housing in the forward direction of travel. The interaction of the flange and the stop effectively prevents the drawbar from separating from the trailer. Thus, a high level of operational safety can be achieved.

[0017] In a further aspect of the invention, the overrun device comprises a housing. The housing is designed to be connected to the trailer, in particular to at least one drawbar of the trailer. The housing is also directly connected to the locking element. Due to this direct connection, the locking element can protect the housing, and in particular housing parts connected to the locking element, from bending and / or twisting. Therefore, the housing can withstand higher bending loads and / or torques.

[0018] Furthermore, the housing protects the overrun device, especially its moving components such as the drawbar and bearing housing, from the ingress of dirt. It also protects the moving components from mechanical stresses such as impacts. This results in a highly durable overrun device.

[0019] The trailer may have one or more drawbars. The overrun device may be attached to one or more drawbars, in particular by means of its housing.

[0020] In another aspect, the overrun device can comprise a housing consisting of at least two housing parts. These two housing parts are designed to be connected to the trailer, specifically to at least one of the trailer's drawbars. Furthermore, the two housing parts are directly connected to the locking element. This ensures a very secure connection between the trailer (especially the drawbars) and the overrun device housing. Additionally, the connection between the housing parts and the locking element allows the locking element to stabilize the housing parts, enabling them to withstand higher bending loads and / or torques.

[0021] Furthermore, at least one locking element can include at least one locking element. This locking element can engage positively with the trailer and / or with a housing part of the overrun device housing.

[0022] The housing of the overrun device or the trailer may have a complementary locking element. This complementary locking element can engage with at least one other locking element. In this way, the locking element can be positively connected to the trailer (directly or indirectly).

[0023] The positive-locking connection can be the sole connection, or additional connection types (such as bolts, rivets, welding, and / or the like) can be provided. This allows for a very secure connection between the overrun device's safety element and the trailer. This also improves the safety of the connection between the drawbar and the trailer. Furthermore, this positive-locking connection allows for the absorption of higher bending loads and / or torques.

[0024] In another aspect, at least one locking element can extend in a lateral direction (i.e., a direction essentially perpendicular to the forward direction of travel). A housing part of the overrun device housing can include a complementary locking element onto which the locking element is slid to secure the locking element to the trailer.

[0025] If the locking element extends laterally and the housing part with its complementary locking element is pushed onto the locking element in the opposite lateral direction, the locking element and the housing part cannot detach due to a tensile force in either the forward or reverse direction of travel. This ensures a secure connection. Furthermore, the locking elements stabilize the corresponding housing part(s), enabling the housing part(s) to withstand higher bending loads and / or torques.

[0026] Furthermore, the overrun device may include a cover. This cover may partially conceal the bearing housing and the drawbar. For example, the cover may be placed on top of the housing(s) of the overrun device and fastened to them. Screws, snap hooks, adhesives, and / or similar fasteners may be used. The cover prevents a trailer user from reaching into the moving parts, particularly the drawbar. This protects the user from pinching and crushing. The openings between the cover and the other parts of the overrun device may be sized so that a user cannot reach inside. The openings are therefore smaller than the diameter of a user's finger. In addition, the cover protects the other parts of the overrun device from the elements.

[0027] The overrun device may also include a damping element. This damping element may be arranged, in particular, between the stop and the drawbar. In one aspect, the damping element is arranged between the stop and the flange section of the drawbar. The damping element may be an elastic damping element, such as a rubber damping element, or a silicone damping element. Other materials are also possible. Furthermore, the damping element may be essentially ring-shaped. Other shapes are also possible.

[0028] If the damping element is positioned between the stop and the drawbar, shocks transmitted from the trailer's movement—i.e., from the towing vehicle or the trailer itself, and from the road surface to the drawbar or overrun device—can be mitigated. This ensures a longer-lasting overrun device. In particular, the damping element prevents abrasion between the stop and the drawbar or its flange section.

[0029] The overrun device may also include a spring and / or damping element. For example, a spring and / or damping element may be located, at least partially, within the drawbar and dampen movement of the drawbar against the forward direction of travel and / or pre-tension the drawbar in a direction opposite to the forward direction of travel. This pre-tensioning ensures that the drawbar is deflected to its maximum extent in the direction of travel when in a normal position (for example, when the trailer is uncoupled).

[0030] The overrun device can also include an additional safety element. This additional safety element is designed to be permanently connected to the trailer. The connection between the trailer and the additional safety element provides further stabilization to the area of ​​the trailer to which the additional safety element is attached, enabling it to withstand even higher bending loads and / or torques (especially those that cause twisting).

[0031] The connection can be made using screws, rivets, welding, and / or similar methods. The fastening can be direct or indirect. The additional securing element is also designed to secure the drawbar to the trailer if the first securing element fails.

[0032] For example, the first locking element can have a recess that at least partially overlaps the pull rod (i.e., it can be designed as a locking bracket). Alternatively or additionally, the second locking element can have a projection that engages with the pull rod. For this purpose, the pull rod can have a recess, such as a longitudinal groove or a slot. The projection of the second locking element engages in this recess, thus securing the pull rod further.

[0033] For example, the bearing housing can have a first end and a second end, with the first end pointing in the forward direction of travel and the second end opposite the first end. The locking element can be located, for example, at or near the second end of the bearing housing. The optional additional locking element can be located, for example, at or near the first end.

[0034] Thus, the bearing housing is essentially positioned between the first and second locking elements. Furthermore, the locking elements, or at least one locking element, can encircle the bearing housing. Additionally, at least one locking element can serve to secure the bearing housing. For example, the bearing housing can be clamped between the locking elements, positively locked in place by at least one locking element, and / or attached to at least one locking element. This fastening can be achieved, for example, by adhesive, rivets, or screws.

[0035] Furthermore, the bearing housing can be attached to a housing part of the overrun device, for example by rivets, screws and / or the like.

[0036] In one aspect, the bearing housing has laterally oriented through holes. These can accommodate screws and / or threaded bolts, thus connecting the bearing housing (directly or indirectly) to the trailer, in particular to a drawbar of the trailer.

[0037] In another aspect, a sealing element is arranged between the bearing housing and the locking element, and optionally between the bearing housing and the additional locking element. The sealing element prevents dirt and / or moisture from penetrating the bearing housing.

[0038] In another aspect, the overrun device includes a deflection lever. The drawbar, which can be connected to the towing vehicle at one end, can interact with the deflection lever at its other end, opposite the first, to deflect it. When the towing vehicle brakes (or travels downhill), the trailer runs into the towing vehicle, and the drawbar is moved in the opposite direction of travel. The drawbar then deflects the deflection lever at its other end. The deflection lever can be connected to a brake on the trailer. For example, the connection can be made via a brake cable, a brake linkage, or a brake rod. The brake can be a drum brake, a disc brake, or another type of brake. The deflection lever is thus designed to actuate the brake when it is deflected by the drawbar.

[0039] The task is further solved by a trailer, in particular a caravan trailer. The trailer includes an overrun device as described above and at least one brake, wherein the overrun device is configured to actuate the trailer's brake when the drawbar is displaced relative to the bearing housing in the opposite direction of travel.

[0040] The brake can be a drum brake, a disc brake, and / or the like. The trailer can also have multiple brakes that are actuated by the overrun device. The trailer can be a car trailer, an agricultural trailer, or a truck trailer. In particular, the trailer can be a transport trailer intended for transporting materials and / or animals, especially horses. Furthermore, the trailer can be a caravan or a motorhome. The trailer can, for example, have a maximum permissible gross weight of 3500 kg. Brief description of the characters

[0041] The accompanying figures illustrate specific embodiments of the present invention. These serve to facilitate understanding of the invention. In particular, they show Fig. 1 a schematic representation of a trailer and a towing vehicle; Fig. 2 a schematic diagram of an overrun device; Fig. 3A a schematic side view of an overrun device; Fig. 3B a schematic top view of an overrun device; Fig. 4 a schematic isometric view of an overrun device; Fig. 5 another schematic side view of an overrun device; Fig. 6 a schematic sectional view of an overrun device; Fig. 7 a schematic representation of a bearing housing of the overrun device; Fig. 8 a schematic representation of a safety element; and Fig. 9 a schematic exploded view of an overrun device. Detailed description of the figures

[0042] Figure 1 Figure 1 shows a schematic representation of a trailer 10 with a towing vehicle 20. The trailer 10 is an overrun-braked trailer with a maximum permissible total weight of, for example, 3500 kg.

[0043] The trailer 10 includes an overrun device 100, which comprises a drawbar (not shown here). A ball coupling 104 is provided at one end of the drawbar, which is coupled to a ball head 24 to form a trailer coupling 22.

[0044] In Figure 2 The principle of the overrun device 100 is illustrated. If the drawbar 106 of the overrun device 100 is moved against the forward direction of travel (indicated by an arrow above the drawbar 106), a deflection lever 108 is deflected. The deflection lever 108 is rotatably mounted on a pivot point 109. The rotational movement of the deflection lever 108 acts on a brake linkage 14 or a brake cable, which is connected to a brake 16 of the trailer (here a brake drum).

[0045] The movement of the drawbar 106 against the forward direction of travel thus causes the trailer 10 to brake. For safety, a safety cable 12 is provided, which is connected at one end to the deflection lever 108 and at the other end to the trailer coupling 22 of the towing vehicle. Should the trailer 10 become detached from the trailer coupling 22 or should the drawbar break, the safety cable 12 would ensure the connection between the trailer 10 and the towing vehicle 20. In this case, the safety cable 12 would also deflect the deflection lever 108, thus initiating an emergency braking action of the trailer 10.

[0046] The Figures 3A and 3B show a drawbar of a trailer 10, on which an overrun device 100 is arranged. Figure 3A shows a side view and Figure 3B shows a top view.

[0047] The trailer 10 has two drawbars 18a, 18b. Alternatively, it may have only one drawbar. An overrun device 100 is attached to the drawbar(s) 18a, 18b of the trailer. The overrun device comprises a housing, which is additionally covered by a cover 110.

[0048] A ball coupling 104 is arranged at the left end of the trailer 10, which is attached to one end of the drawbar. The drawbar is not shown here because it is covered by a bellows 102. The bellows 102 prevents the drawbar from becoming dirty.

[0049] The drawbar 106 acts with its end opposite the ball coupling 104 on the deflection lever 108 (as shown in particular in the sectional view, Fig. 6(as shown). Furthermore, a safety cable 12 is attached to the deflection lever 108. In the illustrated embodiment, the brake 16 of the trailer 10 can also be manually engaged by a brake lever 13. The brake lever 13 also acts on the deflection lever 108 in a manner known per se.

[0050] Figure 4 shows an overrun device 100 for the in Figure 1 The trailer shown. The overrun device 100 is shown here without the cover and without the bellows.

[0051] The overrun device 100 includes a drawbar 106. The first end of the drawbar points to the left. A ball coupling 104 (not shown) can be attached to the first end of the drawbar via the bores shown. The drawbar 106 is slidably mounted in the bearing housing 120.

[0052] Furthermore, the overrun device 100 includes a safety element 130 which overlaps the drawbar. The drawbar 106 strikes a stop 134 (see figure) with a flange 106a, which is arranged at the second end of the drawbar 106 (see figure). Figure 8 ) of the safety element 130 when the drawbar 106 is fully deflected in the forward direction of travel.

[0053] The stop 134 of the safety element 130 prevents the drawbar 106 from being pulled out of the overrun device 100 in the forward direction of travel. Since the overrun device 100 is rigidly connected to the trailer 10, this prevents separation of the trailer 10 and the towing vehicle 20, even if, for example, the bearing housing 120 breaks.

[0054] The design shown, in particular the locking element 130, which interacts with the flange 106a of the tie rod 106, allows the bearing housing 1220 to be made of a material other than steel. For example, the bearing housing 1220 can be a light metal housing (e.g., aluminum, titanium, magnesium, or the like). Likewise, the bearing housing 1220 can be a plastic housing (e.g., PA, PE, PP, PET, PS, etc.). Furthermore, the bearing housing 1220 can be a composite material housing and comprise a composite material such as glass fiber reinforced plastic (GFRP, CFRP, etc.).

[0055] The locking element 130 can be attached to the housing parts 112, 114 of the overrun device housing 100. By attaching the locking element 130 to the housing parts 112, 114, the housing parts 112, 114 can be additionally stabilized, enabling them to withstand higher bending loads and / or torques (especially those that cause twisting).

[0056] The pull rod 106 acts on a deflection lever 108. This deflection lever 108 has a mounting for a brake linkage 14 at its lower end. The brake linkage 14 then acts on a brake 16. Thus, when the deflection lever 108 is deflected, the brake 16 is actuated. A safety cable 12 is also attached to the deflection lever 108. Furthermore, the running device 100 includes a brake lever 13 with which the brake 16 can be manually locked.

[0057] The overrun device 100 can optionally include a further locking element 140. The further locking element 140 is arranged at a first end of the bearing housing 120 and serves, among other things, to secure the bearing housing 120. The bearing housing 120 is essentially located between the locking element 130 and the further locking element 140. If the first locking element 130 and also the bearing housing 120 were to fail, the flange 106a of the drawbar 106 would be guided against the locking element 140 and held there. Separation of the trailer 10 from the towing vehicle 20 could thus be avoided.

[0058] Figure 5 The overrun device shows 100. Figure 4in a side view. The overrun device can include a spring and damping element 150. The spring and damping element 150 is attached to a housing part of the overrun device 100 and to the deflection lever 108. The spring and damping element 150 dampens any deflection of the deflection lever 108 and returns it to a normal position, as described in Figure 5 The diagram shows the position before. In the normal position, the deflection lever 108 does not brake the brake 16.

[0059] In Figure 6 Is the overrun device 100% off? Figure 4 and 5shown in a sectional view. A further spring and damping element 152 can be provided within the drawbar 160. The spring and damping element 152 is secured in the drawbar 106 by a transverse bolt 153. At the opposite end, the spring and damping element 152 is connected to a housing part of the overrun device. The further spring and damping element 152 pre-tensions the drawbar in a normal position, i.e., in a position in which the drawbar 106 is deflected to its maximum extent in the forward direction of travel. In addition, the spring and damping element 152 dampens movement of the drawbar 106 against the forward direction of travel.

[0060] A damping element 132 in the form of an elastic ring, for example a rubber ring, is provided between the flange 106a of the tie rod 106 and the locking element 130. This damping element 132 prevents the flange 106a from striking the locking element 130 hard.

[0061] Figure 7 Figure 1 shows a representation of the bearing housing 120, which can be a light metal housing, a plastic housing, or a composite material housing. Grease nipples 127 are arranged on the top of the housing 120. These serve to supply lubricant to the bearing housing to ensure proper lubrication of the drawbar 106.

[0062] The drawbar 106 is inserted into the drawbar receptacle 126 of the bearing housing 120 and is then slidably mounted in the bearing housing 120. For fastening the bearing housing 120 to the overrun device 100 and / or to a trailer 10, the bearing housing 120 has at least two lateral bores 122, 124. These serve to accommodate screws or threaded bolts (see figure). Figure 9 ).

[0063] Figure 8Figure 1 shows a locking element 130. A pull rod receptacle 136 is arranged centrally within the locking element 130. This receptacle is designed as a through-opening through which the pull rod is guided. The circumferential edge of the through-opening completely surrounds the pull rod. Furthermore, a receptacle 133 for the damping element 132 is provided around the perimeter of the pull rod receptacle 136. The damping element 132, for example a rubber ring, can be inserted into the receptacle 133.

[0064] The circumferential edge of the drawbar receptacle 136 (edge ​​area) forms the stop 134 for the drawbar 106. To be attached (directly or indirectly) to the trailer 10, the securing element 130 has mounting tabs 138a, 138b which include through-holes (here, elongated holes). Screws or rivets, for example, can be passed through these through-holes to connect the securing element 130 to the trailer, in particular to the trailer's drawbar(s). This provides additional security against bending / twisting of the drawbar(s) by means of the securing element 130 connected to them.

[0065] Furthermore, the locking element 130 has locking elements 137a, 137b. The locking elements 137a, 137b extend in a lateral direction.

[0066] As in Figure 9As shown, the housing parts 112, 114 can be slid laterally onto the locking elements 137a, 137b. For this purpose, each of the housing parts 112, 114 includes a complementary locking element 118a, 118b. The complementary locking elements 118a, 118b are designed as receiving openings.

[0067] To mount the receiving device 100, screws or threaded bolts are inserted through the bores 122, 124 of the bearing housing 120. The housing parts 112, 114 are attached to the sides of the bearing housing 120 using these threaded bolts. By tightening the housing parts 112, 114, the laterally extending locking elements 137a, 137b of the locking element 130 are positively engaged and secured in the receiving openings 118a, 118b. Due to the positive-locking connection with the locking element 130, particularly because of the laterally extending locking elements 137a, 137b, the housing parts 112, 114 can withstand higher bending loads and / or torques.

[0068] Additionally, the locking element 130 can be screwed or riveted to the trailer 10 via the mounting tabs 138a, 138b. This provides further stabilization. In the illustrated embodiment, the other housing parts 116, 117, and 119 are also screwed to the housing parts 112, 114. The deflection lever 108 can be attached to the housing parts 116 and 117. The housing part 119 serves to attach a cover.

[0069] Some embodiments are described in more detail than others with reference to the accompanying figures. However, other embodiments are also included in this disclosure. This disclosure should not be understood as being limited only to the embodiments explicitly presented here; rather, these embodiments are given as examples to convey to the person skilled in the art the scope of the subject matter of the invention. The present invention can, of course, also be carried out in ways other than those presented herein without affecting any essential features of the invention. The present embodiments are to be regarded in every respect as illustrative and not limiting, so that variations of the described embodiments may also fall within the scope of protection. Reference symbol list

[0070] 10 Trailer 12 Safety cable 13 Brake lever 14 Brake linkage or brake cable 16 Trailer brake (e.g., brake drum) 18a Drawbar 18b Drawbar 20 Towing vehicle 22 Trailer coupling 24 Ball head 100 Overrun device 102 Bellows 104 Ball coupling 106 Drawbar 106a Flange section 108 Deflection lever 109 Pivot point 110 Cover 112 Housing part 112a Complementary locking element 114 Housing part 114a Complementary locking element 116 Housing part 117 Housing part 118a Mounting opening 118b Mounting opening 119 Housing part 120 Bearing housing 122 Bore 124 Bore 126 Drawbar receptacle 127 Grease nipple 130 Locking element 132 Damping element 133 Receptacle for damping element 134 Stop (edge ​​area) 136 Pull rod receptacle 137a Detent element 137b Detent element 138a Mounting tab 138b Mounting tab 140 Mounting element 150 Spring and / or damping element 152 Spring and / or damping element 153 Cross bolt

Claims

1. Overrun device (100) for a trailer (10), wherein the overrun device (100) comprises a drawtube (106) which has a first end and can be coupled at the first end to a towing vehicle (20); at least one securing element (130), and a bearing housing (120), wherein the bearing housing is a light metal alloy housing, a plastic housing or a composite material housing, and wherein the drawtube (106) is translationally movably mounted in the bearing housing (120) and is designed to actuate a brake (16) of the trailer (10) when the drawtube (106) is moved relative to the bearing housing (120) counter to the forward direction of travel, and characterised in that the securing element (130) is different from the bearing housing (120) and is designed to be fixedly connected to the trailer (10), wherein the securing element (130) has a stop (134) that limits the movement of the drawtube (106) relative to the bearing housing (120) in the forward direction.

2. Overrun device (100) according to claim 1, wherein the securing element (130) and the drawtube (106) consist of steel or substantially of steel.

3. Overrun device (100) according to claim 1 or 2, wherein the securing element (130) comprises a passage opening through which the drawtube is led, and / or wherein the securing element (130) comprises a recess that at least partially encompasses the drawtube, and / or wherein the securing element (130) has a projection that engages with the drawtube (106).

4. Overrun device (100) according to one of claims 1 to 3, wherein the drawtube has a flange portion (106a) which is designed to strike against the stop (134) of the securing element (130) in order to limit the maximum movement of the drawtube (106) relative to the bearing housing (120) in the forward direction of travel.

5. Overrun device (100) according to one of claims 1 to 4, wherein the overrun device comprises a housing, wherein the housing is designed to be connected to the trailer, in particular to at least one drawbar (18a, 18b) of the trailer, and wherein the housing is furthermore directly connected to the securing element.

6. Overrun device (100) according to one of claims 1 to 5, wherein the securing element (130) comprises at least one snap-fit element (137a, 137b) which can interlockingly engage with the trailer and / or with the housing part (112, 114) of the housing of the trailer device (100), wherein the housing part (112, 114) of the trailer device (100) can have a complementary snap-fit element (112a, 114a) that interlocks with the at least one snap-fit element (137a, 137b).

7. Overrun device (100) according to claim 6, wherein the at least one snap-fit element (137a, 137b) extends in a lateral direction, and a housing part (112, 114) of the housing of the trailer device (100) is slid with its complementary snap-fit element (112a, 114a) onto the snap-fit element (137a, 137b) in order to attach the securing element (130) to the trailer.

8. Overrun device (100) according to one of claims 1 to 7, wherein the overrun device comprises a cover (110) which at least partially covers the bearing housing (120) and the drawtube (106).

9. Overrun device (100) according to one of claims 1 to 8, wherein the overrun device (100) comprises an absorber element (132) which is arranged between the stop (134) and the drawtube (106), in particular between the stop (134) and the flange portion (106a) of the drawtube (106).

10. Overrun device (100) according to one of claims 1 to 9, wherein the overrun device (100) comprises a further securing element (140) that is designed to be fixedly connected to the trailer (10), wherein the further securing element (140) is designed to secure the drawtube (106) on the trailer (10) if the first securing element (130) fails.

11. Overrun device (100) according to one of claims 1 to 10, wherein the bearing housing (120) has a first and a second end, wherein the first end points in the forward direction of travel and the second end is opposite the first end in the direction of extension of the drawtube, and wherein the securing element (130) is arranged on the second end or near the second end, and wherein the optional further securing element (140) is arranged on the first end or near the first end.

12. Overrun device (100) according to one of claims 1 to 11, wherein a sealing element is arranged between the bearing housing (120) and the securing element (130) and optionally between the bearing housing (120) and the further securing element (140).

13. Overrun device (100) according to one of claims 1 to 11, wherein the overrun device (100) comprises a deflection lever (108), and wherein, at a second end opposite the first end, the drawtube (106) interacts with the deflection lever (108) to deflect the latter, wherein the deflection lever (108) can be connected to a brake (16) of the trailer (10) and is designed to actuate the brake (16) when the deflection lever (108) is deflected by the drawtube (106).

14. Trailer (10), in particular a caravan trailer, comprising an overrun device (100) according to one of claims 1 to 13 and at least one brake (16), wherein the overrun device (100) is designed to actuate the brake (16) of the trailer (10) when the drawtube (106) is moved relative to the bearing housing (120) counter to the forward direction of travel.

15. Trailer according to claim 14, wherein the trailer has a maximum authorised mass of 3500 kg.