Stop buffer with an Anti-rotation device
The described stop buffer device, featuring a secured elastic buffer with a thread and helical ramp section, addresses the complexity and wear issues of existing stop buffers, ensuring stable support and reduced noise in vehicle parts.
Patent Information
- Application Number
- EP2023208153
- Authority / Receiving Office
- EP · EP
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2022-11-14
- Filing Date
- 2023-11-07
- Publication Date
- 2025-06-25
- Estimated Expiration
- 2043-11-07
AI Technical Summary
Existing stop buffers for vehicle parts are complex and prone to wear, leading to inefficiencies and noise during vehicle operation.
A simple and robust stop buffer device comprising an elastic stop buffer with a buffer shaft and buffer head, secured against rotation using a securing element that engages with the receiving body through a thread and helical ramp section, enhancing stability and service life.
The device provides stable support and reduces noise by preventing rotation, thus extending the service life and improving the operational efficiency of vehicle parts.
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Abstract
Description
[0001] The invention relates to a device for supporting a first vehicle part on a second vehicle part and to a motor vehicle with such a device.
[0002] In the prior art, for example, US 2019 / 0301221 A1 or US 2002 / 0003993 A1, stop buffers are known for supporting a movable vehicle part in a closed position, such as a tailgate. On the one hand, such stop buffers are intended to ensure a defined position of the vehicle part in the closed position. On the other hand, such stop buffers can be used to support the vehicle part under preload, thereby preventing rattling and banging noises during driving. The disadvantage is that previous solutions are often complex and prone to wear.
[0003] The invention is based on the object of providing an improved device for supporting vehicle parts, by means of which the disadvantages of previous solutions can preferably be avoided. In particular, it is an object of the invention to provide a device for supporting vehicle parts that is as simple and robust as possible.
[0004] These objects can be achieved with the features of the independent claims. Advantageous embodiments and applications of the invention are subject to the dependent claims and are explained in more detail in the following description, with partial reference to the figures.
[0005] A first independent aspect of the present disclosure relates to a device for supporting a (e.g. pivotable) first vehicle part (such as a vehicle door) on a (e.g. fixed) second vehicle part (such as a driver's cab).
[0006] The device comprises (e.g., only) one (e.g., elastic) stop buffer with a buffer shaft and a buffer head. The buffer head is connected to the buffer shaft (e.g., integrally). The buffer shaft has a thread (e.g., a screw thread). Accordingly, the stop buffer can, for example, be a screw-on rubber buffer. Furthermore, the buffer head has a (e.g., flat) stop surface for the second vehicle part. For example only, the buffer head or the stop surface can be made of plastic or rubber. Preferably, the stop buffer can be substantially pin-shaped or peg-shaped.
[0007] Furthermore, the device has a (e.g. dome-shaped) receiving body that is arranged or can be arranged on the first vehicle part. The receiving body can, for example, be fastened to the first vehicle part (e.g. screwed and / or welded) and / or formed onto the first vehicle part (e.g. by deep drawing). The receiving body has an opening (e.g. a bore and / or a recess) into which the buffer shaft is screwed. For this purpose, the opening or the receiving body can, for example, have an (internal) thread that corresponds at least in sections to the (external) thread of the buffer shaft. Alternatively, the opening can be formed, for example, by a helical boundary of a helical ramp section, so that the buffer shaft is screwed into the helical boundary.
[0008] The device further comprises a securing element, preferably for securing the stop buffer against rotation. The securing element is arranged between the buffer head and the receiving body. For example, the securing element can be arranged in the region of the buffer shaft. The securing element further engages at least partially in the thread of the buffer shaft and is supported on the receiving body (e.g., in a form-fitting manner and / or over a flat surface and / or in the form of a ring segment). By means of the securing element, a further (indirect) connection can thus be provided between the stop buffer and the receiving body - in addition to the (direct) screw connection between the stop buffer and the receiving body. This preferably prevents rotation (e.g., clockwise rotation) of the stop buffer relative to the receiving body.
[0009] The locking element thus advantageously enables the locking of a stop surface previously determined by screwing in the stop buffer. In particular, the locking element, or its support on the receiving body, can prevent the stop buffer from rotating (e.g., clockwise). Furthermore, the engagement of the locking element in the thread of the buffer shaft, or the insertion of the locking element in the thread, can advantageously improve the force transmission in the stop buffer and its stability, thereby advantageously increasing the service life of the stop buffer.
[0010] According to a first aspect, the securing element may have a projection (e.g. in the form of a nose and / or a pin).
[0011] According to a further aspect, the receiving body can have a recess (e.g., corresponding to the projection). The projection can engage in this recess (e.g., at least partially in a form-fitting manner). For example, an outer contour of the projection can be configured to match an inner contour of the recess. Accordingly, the projection and the recess can interact, e.g., at least partially in a form-fitting manner. This preferably serves to prevent the stop buffer from twisting against the receiving body.
[0012] According to a further aspect, the projection can extend away from the securing element in the direction of the receiving body. The projection can thus protrude or protrude from the securing element, for example, in the direction of the receiving body. Preferably, the projection is arranged on or protrudes from an underside of the securing element.
[0013] According to a further aspect, the projection can extend substantially parallel to the buffer shaft. The projection can, for example, have its longest extension along the buffer shaft and / or have a main extension direction along the buffer shaft.
[0014] According to a further aspect, the recess can be arranged adjacent to the opening (of the receiving body) and / or connected to the opening. For example, the recess and the opening can form a common hole, wherein the opening can form a (e.g., round, preferably circular) first portion of the hole and the recess can form a (e.g., crescent-shaped) second portion of the hole.
[0015] According to a further aspect, the securing element can have a helical (e.g., helix-shaped) ring segment (e.g., one that can be bent open and / or closed). For example, the ring segment can be designed as a C-ring segment and / or an open ring. The helical ring segment can also be wound helically, for example. Preferably, the helical ring segment therefore does not have a flat or planar shape. The helical ring segment can have the same pitch as the thread of the buffer shaft. For example, the helical ring segment and the thread of the buffer shaft can each have the same pitch or be designed to correspond to one another. The helical ring segment can engage at least partially in the thread of the buffer shaft. For example, the helical ring segment can be arranged at least partially in a thread turn of the thread of the buffer shaft.In an advantageous manner, in addition to holding the securing element on the stop buffer, the stop buffer can also be reinforced.
[0016] According to another aspect, the ring segment may be a C-ring segment. For example, the ring segment may be formed as an open ring and / or in the shape of the letter "C."
[0017] According to a further aspect, the ring segment can be configured in the shape of a circular ring sector. Preferably, the ring segment is configured in the shape of a circular ring sector over an angle (e.g., center angle) of at least 270°, particularly preferably over an angle of at least 300°.
[0018] According to a further aspect, the ring segment can be supported on two opposite (e.g., two adjacent and / or mutually facing) flanks of a thread pitch. The ring segment preferably has a slight oversize compared to the width of the thread pitch. Accordingly, the ring segment can preferably be clamped between the two flanks. This advantageously allows for additional force transmission along the buffer shaft via the securing element.
[0019] According to a further aspect, the helical ring segment can have a material weakening to increase the bendability of the helical ring segment. For example, the material weakening can be designed in the form of a partially reduced cross-section of the helical ring segment. The material weakening is preferably arranged in a central region of the helical ring segment (e.g., between a first end of the helical ring segment and a second end of the helical ring segment). Thus, the central region of the helical ring segment preferably has the material weakening. For example, the material weakening can be arranged opposite an opening in the helical ring segment that can be bent open and / or closed.
[0020] According to a further aspect, the helical ring segment can have a main section. This can, for example, have a substantially rectangular cross-section. The main section can furthermore abut two flanks of a thread pitch and be arranged set back in the thread pitch with respect to an outer diameter of the thread. Thus, the main section can preferably not abut the two flanks of the thread pitch over the entire thread depth.
[0021] Furthermore, the helical ring segment can have an edge section. This can adjoin the main section (e.g., be integrally connected to the main section) and protrude beyond the thread. The edge section can thus preferably be arranged at least partially outside the outer diameter of the thread. The edge section can taper outwards. For example, the edge section can have a trapezoidal cross-section. Preferably, the edge section does not bear against the two flanks of the thread. Advantageously, this can cause a force directed into the thread on the helical ring segment when compressive loads act on the stop buffer or the buffer shaft, thereby holding the securing element in the thread.
[0022] According to a further aspect, the securing element can have a (e.g., plate-shaped) first gripping region and a (e.g., plate-shaped) second gripping region. The first and second gripping regions can preferably be used for gripping and / or holding the securing element by a human hand. For example, the first and second gripping regions can be used for bending the helical ring segment open and / or closed (e.g., by a human hand). Preferably, the first gripping region is arranged at a first end of the ring segment and / or the second gripping region is arranged at a second end of the ring segment, preferably opposite the first end. For example, the first and second gripping regions can be arranged adjacent to or in the region of the opening of the helical ring segment that can be bent open and / or closed. This advantageously ensures the simplest possible assembly of the securing element.
[0023] According to a further aspect, the receiving body (e.g., a top side of the receiving body) can have a helical ramp section. The helical ramp section can surround and delimit the opening (into which the buffer shaft is screwed). The helical ramp section can, for example, have a helically wound surface that is arranged around the aforementioned opening or delimits it. The opening can preferably be arranged in a center of the helical ramp section. The helical ramp section can have the same pitch as the thread of the buffer shaft. For example, the helical ramp section and the thread of the buffer shaft can each have the same pitch or be designed to correspond to one another. The thread of the buffer shaft is preferably screwed into the helical ramp section. The helical ramp section (e.g., a surface facing the opening oran edge region of the ramp section delimiting the opening) can thus be arranged at least partially in the thread of the thread of the buffer shaft.
[0024] According to a further aspect, the helical ramp section can form a 360° revolution. Furthermore, the helical ramp section can have a shoulder, by which a (e.g. lower) start of the helical ramp section and a (e.g. upper) end of the helical ramp section can be spaced from one another. The start and end of the helical ramp section can be spaced from one another, for example, by a pitch. Preferably, the shoulder forms, at least in sections, a stop for one or the projection of the securing element. In this case, the projection can bear against the shoulder (e.g. at least in sections with a positive fit) and / or be supported on the shoulder (e.g. at least in sections with a positive fit). For example, a shoulder edge of the shoulder or a profile of the shoulder can be shaped to match an outer contour of the projection. Accordingly, the projection and the shoulder can, for example,interact in a form-fitting manner, at least in sections. For example, the aforementioned recess can be arranged on the shoulder or on the edge of the shoulder. This can also advantageously support the securing element and thus prevent the stop buffer from rotating.
[0025] According to a further aspect, the receiving body can be frustoconical. Preferably, a cover surface of the frustoconical receiving body has the helical ramp section. Accordingly, the helical ramp section can preferably be arranged on the cover surface of the frustoconical receiving body.
[0026] According to a further aspect, the receiving body can at least partially delimit a receiving space for receiving the buffer shaft. For example, this receiving space can be delimited by the cover surface and a sloping lateral surface (adjacent to the cover surface). The receiving space is preferably arranged (directly) below the cover surface. Accordingly, the buffer shaft (e.g., an end of the buffer shaft opposite the buffer head) can be surrounded or enclosed by the receiving body at least partially.
[0027] According to a further aspect, the receiving body can be designed as a sheet metal part. The receiving body can thus be formed, for example, from a preferably thin-walled metal sheet. The preferably dome-shaped receiving body can be formed by forming (e.g., deep drawing) a flat sheet metal blank. Accordingly, the receiving body or its opening can, for example, have a maximum of one thread turn.
[0028] According to a further aspect, the stop buffer can be made of plastic and / or rubber. In a preferred embodiment, the (entire) stop buffer is made exclusively or entirely of plastic or rubber.
[0029] According to a further aspect, the stop buffer can be elastic, e.g., for resiliently supporting the first and second vehicle parts. The stop buffer is preferably made of a resilient material.
[0030] According to a further aspect, the buffer head and / or the stop surface can be square.
[0031] A further independent aspect of the present disclosure relates to a motor vehicle (e.g., a truck or a bus), wherein the motor vehicle comprises a device as disclosed in this document. Preferably, the motor vehicle is a commercial vehicle, i.e., a motor vehicle which, due to its design and equipment, is specifically designed for transporting goods and / or for towing one or more (e.g., agricultural) trailers. For example, the commercial vehicle may be a truck, a semi-trailer, a construction vehicle, and / or an agricultural machine (e.g., a tractor).
[0032] According to one aspect, the motor vehicle can have a (e.g. pivotable) first vehicle part and a (e.g. stationary) second vehicle part. For example, the first vehicle part can be a vehicle door of the motor vehicle, while the second part can be an entrance of a driver's cab of the motor vehicle. The first and second vehicle parts should therefore preferably be different components. In this case, the receiving body of the device can be arranged, for example, on the first vehicle part. For example only, the receiving body can be fastened to the first vehicle part (e.g. screwed and / or welded) and / or connected integrally to the first vehicle part. Furthermore, the first and second vehicle parts can be supported against one another via the device. For example, the second vehicle part can be supported on the stop surface of the buffer head of the stop buffer.The stop buffer can be supported directly on the first vehicle part via the engagement of the stop buffer thread in the opening of the receiving body (arranged on the first vehicle part) or indirectly via the securing element. Furthermore, the device can be arranged (at least in sections) between the first and second vehicle parts.
[0033] According to a further aspect, the first vehicle part can be a vehicle door (e.g., a driver's cab door). In a preferred embodiment, the first vehicle part can be a step cover (e.g., attached and / or attachable to a vehicle door). The step cover, which in this context can also be referred to as a door extension, can preferably cover a step of the motor vehicle (e.g., a driver's cab of the motor vehicle) when the vehicle door is in the closed position and / or expose the step when the vehicle door is in the open position. The step cover can extend the vehicle door or a door body downwards.
[0034] According to a further aspect, the second vehicle part can be a driver's cab. Preferably, the second vehicle part is an entrance and / or a step of a driver's cab.
[0035] Even though a preferred application of the device is to support a vehicle door or its step cover on a driver's cab or a step of the driver's cab, it has been recognized in the present case that the device can also be used to support other (e.g. movable) vehicle parts (such as flaps, hatches, fuel caps, etc.). Furthermore, the inventors have determined that the device can also be used in principle to support components that are not part of a motor vehicle. Accordingly, the first vehicle part can generally be a first component and the second vehicle part can generally be a second component. In other words, the suitability of the device for a first vehicle part and a second vehicle part does not limit the application of the device to one vehicle, since this suitability can also include application as a stop buffer generally between a first component and a second component.
[0036] Furthermore, the respective components of the device, in particular the securing element, should also be disclosed and claimable independently of the device or separately from the other components of the device. In this context, in particular, a securing element for securing a stop buffer against rotation, which is designed as described in this document, and / or a use of such a securing element for securing a stop buffer against rotation should be claimable.
[0037] The above-described aspects and features of the disclosure can be combined with one another within the scope of the appended claims. Further details and advantages are described below with reference to the accompanying drawings. They show: Figure 1A shows a schematic representation of a device for supporting a first vehicle part on a second vehicle part according to an embodiment; Figure 1B shows a schematic representation of the device according to an embodiment; Figure 2A shows a schematic representation of a (first) vehicle part and parts of the device according to an embodiment; Figure 2B shows a schematic representation of a receiving body of the device according to an embodiment; and Figures 3A - 3G show various views of a securing element of the device according to an embodiment.
[0038] The embodiments shown in the figures correspond at least partially, so that similar or identical parts are provided with the same reference numerals and for their explanation reference is also made to the description of the other embodiments or figures in order to avoid repetition.
[0039] The Figures 1A, 1B , 2A, 2B and 3A - 3Geach show embodiments of a device 10 for supporting a first vehicle part 20 on a second (not shown) vehicle part or components of this device 10.
[0040] The device 10 can be arranged, for example, in or on a motor vehicle (not shown). For example, the device 10 can be arranged between a first vehicle part 20 of the motor vehicle (e.g., a driver's cab door) and a second vehicle part of the motor vehicle (e.g., a driver's cab). The first vehicle part 20 and the second vehicle part can be supported against each other via the device 10.
[0041] The device 10 has a stop buffer 11, a receiving body 16 (for the stop buffer 11) and a securing element 18 (cf. Figures 1A and 1B ), whereby the securing element 18 preferably serves to prevent the stop buffer 11 from rotating.
[0042] The stop buffer 11 has a (e.g., rod-shaped) buffer shaft 12 and a buffer head 14, wherein the buffer head 14 is connected to the buffer shaft 12 (e.g., integrally). The stop buffer 11 can thus preferably be formed in one piece. Accordingly, the buffer shaft 12 and the buffer head 14 can preferably not be detachable from one another without causing damage. The stop buffer 11 can, for example, be made of an elastic material, such as plastic and / or rubber. The buffer shaft 12 has a thread 13 (e.g., a flat thread). For example, the thread 13 can have a thread pitch 13a. This can run continuously helically (e.g., as a helix) in an outer wall of the buffer shaft 12. The buffer head 14 has a stop surface 15 for the second vehicle part. For example, the buffer head 14 may be a square buffer head 14 (cf. Figure 1B). Accordingly, the stop surface 15 can have a substantially square shape.
[0043] The receiving body 16 can be arranged (e.g. fixedly) on the first vehicle part 20 or can be arranged (cf. Figure 2A ). The receiving body 16 can, for example, be fastened (e.g., screwed and / or welded) or attachable to the first vehicle part 20. Additionally or alternatively, the receiving body 16 can also be an integral component of the first vehicle part 20. For example only, the receiving body 16 can be formed by deforming a region of the first vehicle part 20 (e.g., formed as a sheet metal part). Accordingly, the receiving body 16 can be integrally connected to the first vehicle part 20.
[0044] The receiving body 16 can be dome-shaped (cf. e.g. Figures 2A and 2B). For example, the receiving body 16 can have a dome-like design and / or protrude from the first vehicle part 20 in a dome-like manner. In a preferred embodiment, the receiving body 16 is frustoconical. For example, the receiving body 16 can have a substantially round cover surface, which is adjoined by a sloping outer surface. The receiving body 16 further has a (e.g., round) opening 17 (e.g., a bore and / or a recess). For example, the opening 17 can be arranged in the cover surface. The buffer shaft 12 can be screwed into the opening 17 (e.g., by means of its thread 13). The buffer shaft 12 can, for example, be arranged in sections above the receiving body 16 and in sections below or in sections within the receiving body 16 (cf. Figure 1A). The receiving body 16 can have a receiving space 16c (e.g., arranged below the cover surface) for receiving the buffer shaft 12. In this context, a position of the stop surface 15 or the buffer head 14 can be determined by how far the buffer shaft 12 is screwed into the opening 17. Accordingly, the position of the stop surface 15 and thus also a force with which the first vehicle part 20 and the second vehicle part support each other can be adjustable.
[0045] Furthermore, the receiving body 16 (e.g., its cover surface) can have a helical ramp section 16a. The helical ramp section 16a can surround and delimit the opening 17 (cf. Figures 1A, 1B and 2B). For example, the helical ramp section 16a may have a helically wound surface that is arranged around or delimits the opening 17. The helical ramp section 16a may, for example, form a 360° revolution (cf. dashed line in Figure 1B ). Accordingly, the receiving body 16 or the helical ramp section 16a can have a shoulder 16b (cf. e.g. Figure 1B ). By means of the shoulder 16b, a (e.g., lower) beginning of the helical ramp section 16a can be spaced from a (e.g., upper) end of the helical ramp section 16. The beginning and end of the helical ramp section 16a can, for example, be separated vertically by the shoulder 16b.
[0046] Preferably, the helical ramp section 16a has the same pitch as the thread 13 of the buffer shaft 12. For example, the helical ramp section 16a and the thread 13 of the buffer shaft 12 can each have the same pitch or be configured to correspond to one another. Thus, the thread 13 of the buffer shaft 12 is preferably screwed into the helical ramp section 16a (see FIG. Figure 1A). Accordingly, the helical ramp section 16a (e.g., an edge region of the helical ramp section 16a facing or delimiting the opening 17) can be arranged at least partially in the thread 13a of the thread 13. Accordingly, the receiving body 16 or the helical ramp section 16a can have a threaded section, which is preferably formed by an edge region of the helical ramp section 16a facing the opening 17. In this context, the receiving body 16 can also be referred to as a threaded dome.
[0047] The securing element 18 preferably serves to prevent rotation of the stop buffer 11. For this purpose, the securing element 18 can be arranged (at least in sections) between the buffer head 14 and the receiving body 16. The securing element 18 can be made of an elastic material, e.g., plastic. Figures 3A - 3Fshow various views of a securing element 18 according to an embodiment.
[0048] The securing element 18 can have a (e.g. bendable and / or closed) helical ring segment 18b, a first gripping region 18d, a second gripping region 18e and / or a projection 18a.
[0049] To install the securing element 18, it can first be bent open (e.g., by grasping the first and second gripping areas 18d and 18e) and then guided around the buffer shaft 12. Accordingly, the securing element 18 can then circumferentially surround the buffer shaft 12. This is preferably done such that the securing element 18 (e.g., its helical ring segment 18b) engages the thread 13 of the buffer shaft 12. By supporting the projection 18a on the receiving body 16 (e.g., a recess 19 whose shape corresponds at least in sections to the projection 18a), an anti-rotation device for the stop buffer 11 can be realized.
[0050] The helical ring segment 18b can be open and / or ring-sector-shaped. For example, the helical ring segment 18b can be a helical C-ring segment. The helical ring segment 18b can have a first end and a second end. The helical ring segment 18b can have an opening that can be bent open and / or closed. This opening can be arranged, for example, between the first and second ends of the helical ring segment 18b. The helical ring segment 18b can be wound helically at least in sections or can be formed at least in sections in the form of a helix (cf., for example, Figures 3D, 3E and 3F). Preferably, the helical ring segment 18b has the same pitch as the thread 13 of the buffer shaft 12. For example, the helical ring segment 18b and the thread 13 of the buffer shaft 12 can each have the same pitch or be designed to correspond to one another. The securing element 18 engages at least partially in the thread 13 of the buffer shaft 12 (cf., for example, Figure 1A ). Accordingly, the helical ring segment 18b can be arranged at least partially in the thread 13a of the thread 13 (cf. e.g. Figure 3G ).
[0051] The helical ring segment 18b can have a main section 18b.1 and an edge section 18b.2 adjoining the main section 18b.1 (cf. e.g. Figures 3C and 3G). The main section 18b.1 and the edge section 18b.2 can be integrally connected in one piece. Accordingly, the helical ring segment 18b can preferably be formed in one piece. The main section 18b.1 can have a substantially rectangular cross-section. The main section 18b.1 can furthermore bear against two, preferably opposite, flanks 13a.1 and 13a.2 of the thread 13a of the thread 13 of the buffer shaft 12.
[0052] The main section 18b.1 or the helical ring segment 18b can be supported against the two flanks 13a.1 and 13a.2 of the thread 13a of the thread 13. Preferably, the main section 18b.1 or the helical ring segment 18b has a slight oversize compared to a width of the thread 13a, so that the main section 18b.1 or the helical ring segment 18b is preferably clamped between the two flanks 13a.1 and 13a.2.
[0053] The main section 18b.1 can be arranged set back in the thread 13a with respect to an outer diameter D of the thread 13. Accordingly, the main section 18b.1 cannot bear against the two flanks 13a.1 and 13a.2 of the thread 13a over the entire thread depth. As mentioned above, the edge section 18b.2 can adjoin the main section 18b.1. The edge section 18b.2 can be arranged radially further outward than the main section 18b.1. The edge section 18b.2 can taper outward. For example, the edge section 18b.2 can have a trapezoidal cross-section. The edge section 18b.2 can protrude beyond the thread 13. The edge section 18b.2 can thus preferably be arranged at least partially outside the outer diameter D of the thread 13. Preferably, the edge section 18b.2 does not lie on the two flanks 13a.1 and 13a.2 of the thread 13a.
[0054] The helical ring segment 18b may further comprise a material weakening 18c to increase the bendability of the helical ring segment 18b. For example, the material weakening 18c may be configured in the form of a partially reduced cross-section of the helical ring segment 18b (see FIG. Figure 3A ). The material weakening is preferably arranged in a central region of the helical ring segment 18b. For example, the material weakening 18c can be arranged opposite the opening of the helical ring segment 18b that can be bent open and / or closed.
[0055] The first and second gripping areas 18d and 18e can each be plate-shaped (cf. e.g. Figures 3A, 3D and 3F). The first and second gripping regions 18d and 18e can preferably each serve for gripping and / or holding the securing element 18 by a human hand. For example, the securing element 18 or its helical ring segment 18b can be bent open and / or closed by holding the first gripping region 18d with a left hand and the second gripping region 18e with a right hand.
[0056] The first gripping region 18d can be arranged at the first end of the helical ring segment 18b. The second gripping region 18e can be arranged at the second end of the helical ring segment 18b. The first and second gripping regions 18d and 18e can be oriented obliquely to one another. For example, the first and second gripping regions 18d and 18e can be arranged at an angle of between 80 and 120° to one another (cf. Figure 3A ). Furthermore, the securing element 18 is supported on the receiving body 16 (cf. e.g. Figure 1B). This preferably serves to prevent the stop buffer 11 from twisting against the receiving body 16. The securing element 18 can be supported on the receiving body 16 via the projection 18a. For example, the projection 18a can be inserted (e.g., at least in sections, in a form-fitting manner) into a recess 19 of the receiving body 16 (cf. Figure 2B ) engage. In addition or alternatively, the projection 18a can engage (e.g. at least in sections with a form-fitting connection) on the shoulder 16b of the helical ramp section 16a (cf. Figure 2B ). The projection 18a can be nose-shaped and / or peg-shaped (cf. 3D figure ). The projection 18a can extend away from the securing element 18 in the direction of the receiving body 16. The projection 18a can, for example, protrude or protrude from the securing element 18 in the direction of the receiving body 16. For example, the projection 18a can be arranged at the first end of the helical ring segment 18b and / or at the first grip region 18d (cf. 3D figure ). Preferably, the projection is arranged on an underside of the securing element 18 or protrudes from an underside of the securing element 18. The projection 18a can also extend substantially parallel to the buffer shaft 12. The projection 18a can, for example, have its longest extension along the buffer shaft 12 and / or have a main extension direction along the buffer shaft 12.
[0057] Although the invention has been described with reference to specific embodiments, it will be apparent to one skilled in the art that various changes may be made and equivalents may be substituted without departing from the scope of the invention. Accordingly, the invention is not intended to be limited to the disclosed embodiments, but is intended to include all embodiments falling within the scope of the appended claims. List of reference symbols
[0058] 10Device 11Stop buffer 12Buffer shaft 13Thread 13aThread pitch 13a.1, 13a.2Flanks 14Buffer head 15Stop surface 16Receiving body 16aRamp section 16bStep 16cReceiving space 17Opening 18Securing element 18aProtrusion 18bRing segment 18b.1Main section 18b.2Edge section 18cMaterial weakening 18dFirst grip area 18eSecond grip area 19Recess 20First vehicle part DOuter diameter
Claims
1. A device (10) for supporting a, preferably pivotable, first vehicle member (20), e.g., a vehicle door, on a second vehicle member, e.g., a driver's cab, comprising: a, preferably elastic, buffer (11) with: a buffer shaft (12), comprising a thread (13); and a buffer head (14) connected to the buffer shaft (12) and having a buffer surface (15) for the second vehicle member: a, preferably dome-shaped, receiving body (16), which is arranged or can be arranged on the first vehicle member (20) and which has an opening (17) into which the buffer shaft (12) is screwed; and a securing element (18) for securing the buffer (11) against rotation, characterized in that the securing element (18) is arranged between the buffer head (14) and the receiving body (16), engages at least partially with the thread (13) of the buffer shaft (12), and is supported on the receiving body (16).
2. The device (10) according to claim 1, wherein: the securing element (18) comprises a projection (18a); and the receiving body (16) comprises a recess (19) in which the projection (18a) at least partially engages in a form-fitting manner, preferably to prevent the buffer (11) from rotating against the receiving body (16)3. The device (10) according to claim 2, wherein: the projection (18a) extends away from the securing element (18) in the direction of the receiving body (16), and / or the projection (18a) extends substantially parallel to the buffer shaft (12); and / or the recess (19) is arranged adjacent to the opening (17) and / or is connected to the opening (17).
4. The device (10) according to any one of the preceding claims, wherein: the securing element (18) comprises a helical ring segment (18b), which preferably can be bent open and closed, having the same pitch as the thread (13) of the buffer shaft (12) and engages at least partially in the thread (13) of the buffer shaft (12).
5. The device (10) according to claim 4, wherein: the ring segment (18b) is a C-ring segment; and / or the ring segment (18b) is formed in the shape of a circular ring sector, preferably over an angle of at least 270°, particularly preferably over an angle of at least 300°; and / or the ring segment (18b) is supported on two opposite flanks (13a.1, 13a.2) of a threading (13a) of the thread (13).
6. The device (10) according to claim 4 or 5, wherein: the helical ring segment (18b), preferably a central region of the helical ring segment (18b), comprises a material weakening (18c) for increasing the bendability of the helical ring segment (18b), wherein preferably the material weakening (18c) is formed by a partially reduced cross-section of the helical ring segment (18b).
7. The device (10) according to any one of claims 4 to 6, wherein the helical ring segment (18b): comprises a main portion (18b.1) which abuts against two flanks (13a.1, 13a.2 ) of a threading (13a) of the thread (13) and is arranged recessed in the threading (13a) with respect to an outer diameter (D) of the thread (13); and comprises an edge portion (18b.2) which adjoins the main portion (18b.1) and projects beyond the thread (13), wherein the edge portion (18b.2) tapers outwards.
8. The device (10) according to any one of the previous claims, wherein: the securing element (18) comprises a, preferably plate-shaped, first grip portion (18d), which is preferably arranged at a first end of the helical ring segment (18b), and a, preferably plate-shaped, second grip portion (18e), which is preferably arranged at a second end of the helical ring segment (18b).
9. The device (10) according to any one of the preceding claims, wherein: the receiving body (16) has a helical ramp portion (16a) surrounding and delimiting the opening (17), wherein the helical ramp portion (16a) has the same pitch as the thread (13) of the buffer shaft (12), wherein preferably the thread (13) of the buffer shaft (12) is screwed into the helical ramp portion (16a).
10. The device (10) according to claim 9, wherein: the helical ramp portion (16a) forms a 360° turn; and the helical ramp portion (16a) comprises a shoulder (16b) by which a start of the helical ramp portion (16a) and an end of the helical ramp portion (16a) are spaced apart, preferably the shoulder (16b) forming at least partially a buffer for a projection (18a) of the securing element (18).
11. The device (10) according to any one of the preceding claims, wherein the receiving body (16): is frustoconical; and / or delimits, at least partially, a receiving space (16c) for receiving the buffer shaft (12); and / or is a sheet metal part.
12. The device (10) according to any one of the preceding claims, wherein: the buffer (11) is made of plastic and / or rubber; and / or the buffer (11) is elastic, preferably for resiliently supporting the first vehicle member (20) and the second vehicle member; and / or the buffer head (14) and / or the buffer surface (15) are / is square.
13. A motor vehicle, preferably commercial vehicle, comprising a device (10) according to any one of the preceding claims14. The motor vehicle according to claim 13, further comprising: a, preferably pivotable, first vehicle member (20) on which the receiving body (16) is arranged; and a, preferably stationary, second vehicle member; wherein the first vehicle member (20) and the second vehicle member are supported against each other via the device (10); and / or wherein the device (10) is arranged between the first vehicle member (20) and the second vehicle member.
15. The motor vehicle according to claim 13 or 14, wherein: the first vehicle member (20) is a vehicle door or a step cover, preferably attached and / or attachable to a vehicle door, covering a step of the motor vehicle in a closed position of the vehicle door; and / or the second vehicle member is a driver's cab.
Citation Information
Patent Citations
Buffer stop for vehicle boot lid comprises cylindrical elastic body with fixing means to engage in metal component and with non-elastic washer axially on body to bear flush against metal component
DE10244345A1