• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    A device (1) for coupling a trailer to a tractor comprises a towbar support (10), which is intended to be fixedly connected to the tractor, and which has at least one support element such as a support bag (11) and a support frame ( 12) for the support element (11); and an intermediate tow bar piece (20), which is intended to be fixedly or releasably connected to the trailer, and which has at least one coupling element such as a hook (22) which is adapted to be mounted on the support element (11) of the tow bar carrier (10) to seize. By applying the device (1) it is possible without problems to realize a coupling between any type of trailer and any type of tractor.
    公开号:BE1018368A6
    申请号:E2008/0688
    申请日:2008-12-19
    公开日:2010-09-07
    发明作者:Adrianus Franciscus Martinus Maria Raaijmakers；Esch Henricus Johannes Cornelis Maria Van
    申请人:Raaijmakers Loon & Grondverzet；
    IPC主号:
    专利说明:

    Title: Device for connecting a trailer to a tractor
    The invention relates to a device for coupling a trailer to a tractor.
    In practice, coupling a random trailer to a tractor is often a problem. Although the tractor is equipped with connection points, and the trailer as well, there is no clear, universal standard for this, and therefore it is often the case that the connection points cannot come into contact with each other in a suitable manner. The tractor and / or the trailer can be adapted to ensure that the trailer can be properly coupled to the tractor, but when the tractor is then to be used for pulling another trailer, the problem is again that the connection points of the trailer on the one hand and the tractor on the other are not aligned with each other. It may even be the case that parts get in each other's way.
    It is an object of the invention to provide a solution to the above-described problem, and to offer a possibility of coupling any trailer, including any tools and / or control rods, to a tractor in an easy manner.
    The object of the invention is achieved by a device for coupling a trailer to a tractor, comprising: - a towbar carrier, which is intended to be fixedly connected to the tractor, and which has at least one supporting element and a supporting frame for the tractor. bearing element; and - an intermediate tow bar piece, which is intended to be fixedly or releasably connected to the trailer, and which has at least one coupling element which is adapted to engage on the support element of the tow bar carrier.
    According to the invention, a combination of a tow bar support and an intermediate tow bar piece is provided. The towbar support is intended to be mounted on a tractor, while the intermediate towbar is intended to be mounted on a trailer, possibly in a detachable manner so that the intermediate towbar can be used in combination with several trailers if desired. In the description below, designations such as "rear" and "side" are to be understood in the context of a tractor and trailer.
    It is advantageous if the towbar carrier is constructed in such a way that a rear side thereof is completely flat and has no protruding parts. The towbar carrier may also be directed towards the iRI so that a stub of a power take-off shaft which has every conventional tractor can be freely accessible for tools to be driven. An additional advantage is that when coupling a implement to the tractor, there is nothing in the way, and the PTO shaft can follow all movements of the implement freely. There is also no risk of damaged protective caps.
    The intermediate tow bar can be fully adapted to the trailer. Control rod couplings can be mounted on the intermediate tow bar piece without getting in the way of other trailers or implements to be coupled, precisely because they then form part of the intermediate tow bar piece. A complete unit with a design can thus be made. which is fully geared to the trailer and any implements, so that the intermediate tow bar can be suitable for mounting a top pressure cylinder.
    In short, when the invention is applied, the tractor is provided with a towbar support, and an intermediate tow bar piece is provided which has a shape that is suitable for a tractor between a coupling between the intermediate tow bar piece and the tow bar carrier. and that has a design on a trailer side that is tuned to a specific trailer. Each intermediate towing hook piece is the same on the tractor side, and therefore all intermediate towing hook pieces conceivable within the scope of the invention are interchangeable.
    In a practical embodiment, the support element of the towing hook carrier is designed as a carrier shaft which extends in a normal position of the towing hook carrier substantially in the horizontal direction, the coupling element of the intermediate towing hook piece being designed as a hook adapted to close over the carrying axle to be laid. In this way it is extremely easy to establish a desired coupling between a tractor and a trailer. No more needs to be done than to lay the hook of the intermediate tow bar piece over the bearing axis of the tow bar carrier.
    In order to provide for a mutual coupling of the intermediate tow bar piece and the tow bar carrier once it has been established, a preferred embodiment of the device is proposed, wherein the support frame of the tow bar carrier has two supports, each of these supports is provided with a recess, wherein the intermediate pull-hook also has two supports, wherein a pivot axis is arranged on each of these supports, and with each of these supports a securing strip is provided which is rotatable about the axis of rotation on the support mounted to be rotatable from one side to a securing position in the recess in the support of the towbar support when the towbar support and the intermediate towbar are in a coupled position in which the coupling element of the intermediate towbar is engaged with the support element of the towbar carrier . In this way the locking is easy to achieve, because the only thing required for this is that the locking strips are turned from one side into the recesses in the supports of the towbar carrier.
    In this preferred embodiment of the device according to the invention, it is advantageous if the securing strip can be tilted to some extent over a contact line with respect to the support of the intermediate tow bar piece. This is because in this way the securing strips get stuck in the recesses when only a slight load is exerted on them, which always takes place due to the weight of the trailer to be coupled.
    It is most effective when the securing strip is positioned such that it extends obliquely upwards from the axis of rotation in the securing position, in a normal orientation of the intermediate tow bar piece.
    In order to be able to secure the securing, it is advantageous if the axis of rotation of the support of the intermediate towing piece is designed as a threaded end extending through the securing strip, a nut being provided on a free end of the threaded end to make it possible to fix a position of the securing strip on the support.
    In a favorable embodiment of the device according to the invention, the coupling element of the intermediate tow bar piece has at least one flat part, wherein the supporting frame of the tow bar carrier also has at least one flat part, and wherein said flat parts are intended to come into contact with each other when the coupling element of the intermediate towing hook piece is brought into engagement with the carrier element of the towing hook carrier. Because in the coupled position the surfaces abut against each other, mutual movements of the intermediate towing hook piece and the towing hook carrier are not possible, other than a movement in a uncoupling direction, which in practical embodiments of the device according to the invention is substantially vertical, such that movement cannot occur spontaneously.
    In a practical embodiment, the intermediate tow bar piece of the device according to the invention has a frame which is provided with at least one hole for receiving a component of the trailer. For a number of possible applications it can be advantageous if this frame comprises at least two parts that are pivotable relative to each other.
    The invention will be further elucidated with reference to the description below. Reference will be made herein to the drawing, in which like reference numerals indicate like or similar parts, and in which: figure 1 shows side views of a towing hook carrier and an intermediate towing hook piece of the device according to the invention, and also shows a nut intended for connecting the intermediate towing hook piece be applied. . figure 2 shows two views of the tow bar carrier of the device according to the invention; Figure 3 shows three views of a support of a support frame of the towbar carrier shown in Figure 2; Figure 4 shows three views of a bottom plate of the support frame of the towbar carrier shown in Figure 2; Figure 5 shows two views of the intermediate tow bar of the device according to the invention; Figure 6 shows four views of a support of the intermediate tow bar piece shown in Figure 5; Figure 7 shows three views of a bottom plate of the intermediate tow bar shown in Figure 5; Figure 8 shows three views of a hook of the intermediate tow bar piece shown in Figure 5; Figure 9 shows two views of each of two locking points of the intermediate tow bar piece shown in Figure 5; Fig. 10 shows a rear view of an intermediate tow bar piece that is suitable for mounting on a trailer on which a top platen is mounted; and Figure 11 shows a side view of the intermediate tow bar piece shown in Figure 10, and also shows a combination of a threaded end and a nut, and a guide cam intended for use with the intermediate tow bar piece.
    In the figures, parts which are in fact hidden from view in a relevant view are indicated by dashed lines.
    Figure 1 shows a tow bar support 10 and an intermediate tow bar piece 20 of the device 1 according to the invention, and also a nut 21 which is intended to be used with the intermediate tow bar piece 20.
    The towbar support 10 is intended to be mounted on a tractor (not shown), by applying per se known and suitable connection techniques such as welding. An additional view of the tow bar carrier is shown in Figure 2, and parts of the tow bar carrier 10 are further shown in Figures 3 and 4. The tow bar carrier 10 comprises a bearing shaft 11 and a support frame 12. Figure 3 shows a support 13 which forms part of the support frame 12, and which has a recess 14 in it. Such a support 13 is positioned on each of the two sides of the tow bar support 10. Figure 4 shows a bottom plate of the support frame 12.
    The intermediate tow bar piece 20 is intended to be connected to a trailer (not shown), in any suitable manner, releasable or fixed. An additional view of the intermediate tow bar piece 20 is shown in Figure 5, and parts of the intermediate tow bar piece 20 are further shown in Figures 6, 7 and 8.
    The intermediate towbar piece 20 comprises two hooks 22 on a front side, each of these two hooks 22 having a hook opening 23 which is accessible from below in a normal orientation of the intermediate towbar piece 20 and which is suitable for partially supporting the bearing axle 11 of the towing hook carrier 10 to take. Furthermore, the intermediate tow bar piece 2 comprises a support 24 on each of the two sides.
    In each of these supports 24, on a top side thereof, a threaded end 25 is fixed, for example by means of welding.
    Figure 6 shows various views of the support 24. Figure 7 shows a bottom plate 26 of the intermediate tow bar piece 20. In the example shown, this bottom plate 26 has a hole 27 for receiving a ball (Scharmuller ball; not shown) which is on has a general application in the field of tractors and trailers. A hook 22 of the intermediate tow bar piece 20 is further shown in Figure 8.
    A coupling between the tow bar support 10 and the intermediate tow bar piece 20 is established by positioning the hooks 22 of the intermediate tow bar piece 20 over the bearing shaft 11 of the tow bar carrier 10, such that the bearing shaft 11 is partially inserted into the openings 23 of the hooks 22. included. In this mutual position of the bearing shaft 11 and the hooks 22, flat portions 28 of the hooks 22 rest on an upper surface 16 of the bottom plate 15 of the towing hook carrier 10. This ensures that the coupling is sufficiently play-free and secured in the coupled position. The higher the load, the more firmly the flat portions 28 of the hooks 22 are pressed onto the top surface 16 of the bottom plate 15 of the tow bar support 10.
    For the purpose of realizing a fixed connection between the tow bar carrier 10 and the intermediate tow bar piece 20 in the coupled position, two securing strips 31, 32 are provided. This deposit i.
    strips 31, 32 are shown in more detail in figure 9. Figure 1 shows that the locking strips 31, 32 are intended to be positioned on an upper side of the supports * 24 of the intermediate tow bar piece. With this in mind, the locking strips .31, 32 have a hole 33 for passage of the threaded end 25. In the coupled position of the towing hook carrier 10 and the intermediate towing hook piece 20, a fixed connection between these two parts 10, 20 of the device 1 according to the invention was achieved by moving the securing strips 31, 32 from one side into the recesses 14 in the supports 13 of the towing hook carrier 10, the securing strips 31, 32 being rotated about the threaded end 25: The supports 24 of the intermediate towing hook piece 20 are provided with a convex curved contact area 34, wherein the securing strips 31, 32 make contact with the supports 24 only over this contact area 34, and are therefore pivotable slightly relative to the supports 24, so that the securing strips are extra well under the influence of load in the recesses 14 in the supports 13 of the tow bar carrier 10
    Can fix. In order to obtain an extra secure connection and to fix a position of the locking strips 31, 32 on the supports 24, nuts 21 are used which are provided on a free end of the threaded ends 25. However, it is not necessarily necessary to tighten these nuts 21; under the influence of load, the securing strips 31, 32 remain in place even without nuts 21. -
    A suitable material for the securing strips 31, 32 is steel 52, and this also applies to the other parts of the intermediate towing hook piece 20. This ensures that the securing strips 31, 32 are resilient and that the coupling is kept under constant tension. can become. This also prevents loosening of the nuts 21.
    Figures 10 and 11 show an intermediate tow bar piece 20 which is suitable to be mounted on a trailer (not shown) on which a top pressure cylinder is located. This intermediate tow bar 20 therefore has a hole 41 for fixing the top pressure cylinder, which hole 41 is located in an upper part 43 of a frame 42 of the intermediate tow bar piece. The frame 42 comprises two parts 43, 44, wherein these parts 43, 44 are pivotable with respect to each other, and wherein a lower part 44 forms a whole with the supports 24. Figure 11 shows a combination of a threaded end 45 and a nut 46, and a guide cam 47 which are intended to be used with the intermediate pulling hook piece 20.
    Below, the steps are briefly described which are performed when the intermediate tow bar piece 20 as shown in Figs. 10 and 11 is applied, and when a coupling between a tow bar support 10 and the intermediate tow bar piece 20 is established for a coupling between a tractor and a trailer to realise. These steps are as follows: - Maneuver the tractor without the top link and with the raised or removed lifting slats in front of the trailer until the tractor is straight in front of the trailer and rests against the intermediate tow bar 20; - Apply the tractor's parking brake; - Get out and lower a support leg located on the trailer until the hooks 22 of the intermediate towbar piece 20 fall over the bearing axle 11 of the towbar carrier 10 of the tractor;
    Top rod, attach and lower support leg freely; - Turn the retaining strips 31, 32 on the left and right in the recesses 14 in the supports 13 of the towbar carrier 10; and - Tighten the top link and tighten nuts 21 left and right.
    In the coupled position of the towing hook carrier 10 and the intermediate towing hook piece 20, the PTO shaft and hydraulic and air hoses can be attached, and possibly also cables from control boxes in the tractor cab.
    Releasing the coupling is achieved by performing the following steps: - Fold the support leg of the trailer down and let it rest on the ground; - Disconnect cables to control boxes in the tractor cab; - Loosen hydraulic and air hoses; - Release the PTO; - Loosen the top link and remove the pin; - Loosen nuts 21 on left and right, unscrew locking strips 31, 32 from recesses 14; - Squeeze the support leg of the trailer until the hooks 22 of the intermediate tow bar piece 20 release from the bearing axle 11 of the tow bar support 10; and - Boarding and driving off.
    For the intermediate towing hook piece 20 as shown in figures 1 and 5, the following instructions apply to the realization of a coupling when the intermediate towing hook piece 20 is used separately: - Remove all mud and caked dirt; - Intermediate tow bar piece 20 with hooks 22 hang on the tow bar support 10; - Turn locking strips 31, 32 into the recesses 14 in the supports 13 of the towbar support 10; and - Tighten nuts 21 left and right.
    When these steps have been completed, the intermediate tow bar piece 20 is attached to the tow bar support 10, completely free of play and ready for use.
    Releasing the coupling is achieved by performing the following steps: - Loosen nuts 21 left and right; - Unscrew the retaining strips 31, 32 from the recesses 14; and - Move the intermediate tow bar piece 20 and the tow bar support 10 m vertically, so that the bearing shaft 11 of the tow bar support 10 is released by the hooks 22 of the intermediate tow bar piece 20.
    It will be clear to a person skilled in the art that the scope of the invention is not limited to the examples discussed above, but that various variations and modifications thereof are possible without departing from the scope of the invention as defined in the appended claims .
    i
    In the foregoing, a device 1 for coupling a trailer to a tractor has been described. This device 1 comprises a tow bar support 10, which is intended to be fixedly connected to the tractor, and which has at least one support element 11 and a support frame 12 for the support element 11; and an intermediate tow bar piece 20, which is intended to be fixedly or releasably connected to the trailer, and which has at least one coupling element 22 which is adapted to engage on the support element 11 of the tow bar carrier 10. The supporting element 11 of the towing hook carrier 10 can be designed as a bearing shaft 11 which extends in a normal position of the towing hook carrier 10 substantially in the horizontal direction, and the coupling element 22 of the intermediate towing hook piece 20 can be designed as a hook 22 which is in-1. is directed to be laid tightly over the carrying shaft 11.
    By applying the device 1 it is possible without problems to realize a coupling between any type of trailer and any type of tractor. Providing a tractor with the tow bar support 10 provides connection points corresponding to connection points of the intermediate tow bar part 20. On the trailer side, this intermediate tow bar part 20 can then be made precisely suitable for attachment to a trailer.
    权利要求:
    Claims (15)
    [1]
    Device (1) for coupling a trailer to a tractor, comprising: - a towbar support (10), which is intended to be fixedly connected to the tractor, and which has at least one support element (11) and a support frame ( 12) for the support element (11); and - an intermediate tow bar piece (20), which is intended to be fixedly or releasably connected to the trailer, and which has at least one coupling element (22) which is adapted to be supported on the support element (11) of the tow bar carrier (10) grab.
    [2]
    Device (1) according to claim 1, wherein the support element (11) of the tow bar support (10) is designed as a support shaft (11) which extends substantially in the horizontal direction in a normal position of the tow bar support (10), and wherein the coupling element (22) of the intermediate towing hook piece (20) is designed as a hook (22) which is adapted to be fitted tightly over the bearing shaft (11).
    [3]
    Device (1) according to claim 1 or 2, wherein the support frame (12) of the tow bar support (10) has two supports (13), each of these supports (13) being provided with a recess (14), the intermediate tow bar piece (20) also has two supports (24), a pivot axis (25) being arranged on each of these supports (24), and with each of these supports (24) a locking strip (31, 32) provided rotatably about the pivot axis (25) on the support (24), so that it can be rotated from one side to a securing position in the recess (14) in the support (13) of the tow bar support (10) when the tow bar carrier (10) and the intermediate tow bar piece (20) are in a coupled position in which the coupling element (22) of the intermediate tow bar piece (20) engages with the support element (11) of the tow bar carrier (10).
    [4]
    Device (1) according to claim 3, wherein the locking strip (31, 32) is tiltable to some extent over a contact line with respect to the support (24) of the intermediate tow bar piece (20).
    [5]
    Device (1) according to claim 3 or 4, wherein the securing strip (31, 32) extends obliquely upwards in the securing position from the axis of rotation (25), in a normal orientation of the intermediate draw hook piece (20) ).
    [6]
    Device (1) according to any of claims 3-5, wherein the axis of rotation (25) of the support (24) of the intermediate towing hook piece (20) is designed as a threaded end (25) which passes through the securing strip (31, 32), and wherein a nut (21) is provided around a free end of the threaded end (25). make it possible to fix a position of the locking strip (31, 32) on the support (24).
    [7]
    Device (1) according to any of claims 1-6, wherein the coupling element (22) of the intermediate towing hook piece (20) has at least one flat portion (28), wherein the support frame (12) of the towing hook support ( 10) also has at least one flat portion (16), and wherein said flat portions (16, 28) are intended to come into contact with each other when the coupling element (22) of the intermediate tow bar piece (20) with the support element (11) - is brought into engagement with the tow bar support (10).
    [8]
    Device (1) according to any of claims 1-7, wherein the intermediate tow bar piece (20) has a frame (42) provided with at least one hole (41) for receiving a component of the trailer.
    [9]
    The device (1) of claim 8, wherein the frame (42) comprises at least two parts (43, 44) that are pivotable with respect to each other.
    [10]
    A tractor with a tow bar carrier (10) comprising a bearing axle (11) extending substantially in a horizontal direction in a normal orientation of the tractor, and a supporting frame (12) for the bearing axle (11), the supporting frame (12) ) is attached to the tractor.
    [11]
    The tractor of claim 10, wherein the support frame (12) of the tow bar support (10) has two supports (13), and wherein each of these supports (13) is provided with a recess (14).
    [12]
    A trailer with an intermediate tow bar piece (20) comprising at least one hook (22), and furthermore having two supports (24), a pivot axis (25) being arranged on each of these supports (24), and a locking strip (31, 32) is provided for each of these supports (24), which is mounted rotatably about the axis of rotation (25) on the support (24).
    [13]
    A towbar carrier (10) for use in a device (1) according to any of claims 1-9, which is intended to be attached to a tractor, and which has a bearing axle (11) which is in a normal position of the towbar carrier (10) extends substantially in the horizontal direction, and comprises a support frame (12) for the bearing shaft (11).
    [14]
    Towbar carrier (10) according to claim 13, wherein the support frame (12) has two supports (13), and wherein each of these supports (13) is provided with a recess (14).
    [15]
    Intermediate tow bar piece (20) for use in a device (1) according to any of claims 1-9, which is intended to be attached to a trailer, which comprises at least one hook (22), and furthermore two supports ( 24), wherein a pivot axis (25) is provided on each of these supports (24), and with each of these supports (24) a locking strip (31, 32) is provided which is rotatable about the axis of rotation (25) is mounted on the support (24).
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    同族专利:
    公开号 | 公开日
    NL1034859C2|2010-06-02|
    NL1034859A1|2009-06-23|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    EP0788902A1|1996-02-07|1997-08-13|Koninklijke Nooteboom Trailers B.V.|Multi-section trailer|
    US5950735A|1996-03-25|1999-09-14|Godbersen; Byron L.|Universal assembly for coupling towable agricultural implement to a towing vehicle|
    DE29606139U1|1996-04-02|1997-07-31|Kaessbohrer Austria Fahrzeug|vehicle|
    US6386569B1|1999-05-01|2002-05-14|Joseph Wick|Fifth-wheel hitch coupling adapter|
    法律状态:
    2013-06-30| RE| Patent lapsed|Effective date: 20121231 |
    优先权:
    申请号 | 申请日 | 专利标题
    NL1034859|2007-12-21|
    NL1034859A|NL1034859C2|2007-12-21|2007-12-21|DEVICE FOR CONNECTING A TRAILER TO A TRACTOR.|
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