• 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:
    The invention relates to a locking device (1) for a telescopic tow bar (2). The device (1) comprises a first locking part (5) carried by the rod (4) and a second locking part (6) carried by the tube (3), the first and second locking parts (5, 6) being capable of cooperating with each other, via tongues (51, 610), to prevent any relative movement in axial translation between the tube (3) and the rod (4) when the latter is in a maximum extended position out of the tube (3). The passage between the locked position and the unlocked position is obtained by rotation of the second locking part (6). The invention also relates to a telescopic tow bar (2) comprising such a locking device (1).
    公开号:BE1027525B1
    申请号:E20185756
    申请日:2018-10-30
    公开日:2022-01-04
    发明作者:Thomas Larue
    申请人:Nexter Systems S A；
    IPC主号:
    专利说明:

    LOCKING DEVICE FOR TOW BAR TELESCOPIC FOR VEHICLE AND TOW BAR TELESCOPIC COMPRISING SUCH A DEVICE
    The present invention relates to the field of towing and recovery of vehicles, and relates more particularly to a telescopic tow bar locking device and to a telescopic tow bar comprising such a locking device.
    For towing a broken down vehicle, different types of tow bars are available, the tow bar being essentially formed by a rigid element provided at each of its ends with gripping means which come to fit on means of hooking provided on the towing vehicle and the broken down vehicle which must be towed.
    There are mainly three types of tow bars with different lengths, namely collapsible bar, telescopic bar and standard bar.
    The telescopic bar has the advantage of allowing the length of the bar to be adjusted as needed.
    Automatically controlled telescopic tow bars are known. Such bars can have various constructions, for example, mechanical telescopic tubes, elongation of fifth wheel couplings, hydraulic actuation by means of sensors and, in addition, multi-hitch systems.
    However, these telescopic tow bars are expensive and have a high dead weight, their maintenance is expensive and many of these bars are not suitable for normal trailers.
    Also known are manually operable telescopic tow bars which can be locked in any desired position by means of a clamping sleeve or bolt securing device. However, such a bolted attachment requires a slack-free telescopic tube which, if not properly maintained, is very likely to corrode.
    Also known from US patents US7942435 and US7390007 towing means which include two telescopic bars which are articulated and assembled in a triangle. Towing should only be possible when the bars are at their maximum extended position, in order to ensure the distances between vehicles necessary for the safety of the operation. It is conventional in these devices to implement locking means comprising one or more locks which are adapted to be moved radially against one of the bars to lock it. Locking is often done automatically, with the lock being pushed by a spring.
    One of the problems associated with the known solutions is that the locks form localized points at the level of which the tensile forces are transmitted. This results in caulking or deformation of the locks, which can lead to jamming of the bars preventing their subsequent folding.
    Another problem is that it is difficult to determine from a distance whether or not the lock is in place, therefore whether the bars are indeed locked. It is therefore possible to start towing with one or two bars not correctly locked, which can lead to a breakage or a towing incident.
    Consequently, the object of the invention is to provide a locking device for a telescopic tow bar which can allow reliable locking in the position of maximum extension, while eliminating the risk of jamming of the bars and, preferably, locking automatic and also allowing easy control of the locked or unlocked state of the device from the outside.
    The subject of the present invention is a locking device for a telescopic tow bar, which tow bar comprises a cylindrical rod slidably mounted in a cylindrical tube, the locking device comprising a first locking part carried or intended to be carried by the rod and a second locking part carried or intended to be carried by the tube, the first and second locking parts being capable of cooperating with each other to prevent any relative movement in axial translation between the tube and the rod when the latter is in a position of maximum extension outside the tube, the locking device being characterized in that: - the first locking part has a radially outer side which comprises first and second series of first tabs located along respectively a first and a second circumference of the first locking part, d two successive first tongues of the same series being separated by a slot, the first and second series of first tongues being separated, in the axial direction, by a circumferential groove, and - the second locking part comprises: - a crown having a radially inner side which comprises a series of second tongues located along a circumference of the crown, two successive second tongues of the same series being separated by a slot, the second tongues having a length, in the axial direction, at most equal to the width of the groove of the first locking part, and - mounting means for mounting the crown on the rotating tube between a first so-called locked angular position and a second so-called unlocked angular position, the first and second parts of lock being dimensioned such that the crown is able, in use, to be positioned around the first st locking part with the second tongues of the crown extending into said groove and, depending on the angular position of the crown, either each second tongue is located between two first tongues of the first locking part, the locking device then being in the locked position, or each second tongue is located between two notches of the first locking part, the locking device then being in the unlocked position.
    Preferably, the locking device 5 also comprises means for locking the first locking part in rotation relative to the means for mounting the second locking part when the crown is positioned around the first locking part with the second tabs. of the crown extending in said groove, the means for locking in rotation preferably comprising a series of third tabs located along a circumference of a radially inner side presented by the means for mounting the second part of locking, two successive third tabs being separated by a slot, the third tabs being the same number as the second tabs of the crown and having the same width, in the circumferential direction, whereby, when the crown is positioned around the first locking part with the second tabs of the crown extending into said groove, each that the first tongue of the second series is located in a slot between two third tongues, the first tongues of the second series thus also forming part of the rotation blocking means.
    The first tongues, the second tongues and, where appropriate, the third tongues are preferably regularly distributed angularly.
    The means for mounting the second locking part may comprise a so-called fixed ring intended to be secured to one end of a tow bar tube, the fixed ring having a radially inner side on which are located, if necessary , the third tabs.
    The means for mounting the second locking part may also comprise an annular retaining flange, the crown being placed between the fixed ring and the retaining flange, the retaining flange being linked to the fixed ring by screws extending in holes provided for this purpose and angularly distributed in the fixed ring and the retaining flange, each screw further extending through a respective axial through slot made in the crown, the slots being oblong and in an arc of a circle so to allow rotation of the crown.
    The locking device may comprise means for limiting the amplitude of rotation of the crown, if necessary which may be formed by the screws connecting the retaining flange and the fixed ring and against which the ends of the openings of the crown may come to a stop.
    The locking device may advantageously further comprise means for elastic return of the crown to the locked position, such as springs.
    The crown may bear on its outer surface projections distributed at an angle and facilitating the manual control of the rotation of the crown, towards the unlocked position, by a user.
    The crown and/or the fixed ring may carry a marker on their outer surface, for example, an arrow pointing towards the unlocked position and/or icons for marking the unlocked position and the locked position of the locking device.
    The first locking part may be formed by an axial cylindrical endpiece, the free end of which comprises a cylindrical part forming a bearing surface coaxial with the tube and the diameter of which is substantially equal to the internal diameter of the tube, so as to ensure the guiding of the rod in the tube as it approaches and departs from its maximum extended position.
    The present invention also relates to a telescopic tow bar comprising a cylindrical rod slidably mounted in a cylindrical tube, each of the tube and of the rod being provided, at a first end, with means for connection to a vehicle, such as a towing yoke, the tow bar also comprising a locking device comprising a first locking part carried by the rod and a second locking part carried by the tube, the first and second locking parts being capable of cooperating with each other the other to prevent any relative movement in axial translation between the tube and the rod when the latter is in a position of maximum extension outside the tube, the tow bar being characterized in that the locking device is as defined above.
    The tow bar can advantageously comprise means for holding the locking device in the unlocked position as long as the rod has not reached its position of maximum extension, these holding means preferably comprising a bar which is carried on the outer surface of the rod, extends over a generatrix of the rod and ends at the level of a first tongue of the first series of tongues of the first locking part, and, where appropriate, a notch which is formed in the radially inner side of the retaining flange and positioned so as to be aligned with one of the notches of the crown when the latter is in the unlocked position, so that during the extension or retraction movement of the stem by relative to the tube, the strip circulates in a crenel of the crown and, if necessary, in the notch and a crenel between two third tongues, the strip thus opposing any rotation of the crown until the stem has reached its maximum extended position.
    To better illustrate the object of the present invention, a description will be given below, by way of illustration and not of limitation, of a preferred embodiment, with reference to the appended drawings.
    In these drawings: - Figure 1 is a perspective view of part of a telescopic tow bar comprising the locking device according to the present invention;
    - Figure 2 is a perspective view of the rod of the telescopic tow bar, provided with the first locking part according to the present invention;
    - Figure 3 is an enlarged view of Figure 2, showing the end of the rod provided with the first locking part;
    - Figure 4 is a perspective view of the tube of the telescopic tow bar, provided with the second locking part according to the present invention;
    - Figure 5 is a longitudinal sectional view of the end of the tube provided with the second locking part, in the locked position;
    - Figure 6 is a perspective view of the end of the tube provided with the second locking part, in the unlocked position;
    - Figures 7 and 8 are views in longitudinal section of the telescopic tow bar according to the present invention, respectively during the extension of the rod with the locking device in the unlocked position, and at the position of maximum extension of the rod with the locking device in the locked position. - Figure 9 is a front view of the crown; and - Figure 10 is a front view of the flange. If we refer to Figures 1 to 8, we can see that the locking device 1 according to the present invention is intended to be used for locking and / or unlocking a telescopic tow bar
    2. The tow bar 2 according to a particular embodiment of the invention conventionally comprises at least one outer tube 3 intended to be connected to one or the other of a tractor vehicle and a vehicle towed, and an inner rod 4 intended to be connected to the other of the tractor vehicle and the towed vehicle. The rod 4 has a diameter at least slightly smaller than that of the tube 3 and is thus slidably mounted in the latter. As can be seen in Figure 2, the rod 4 carries a yoke 40 at one of its ends for connection with a vehicle. The tube 3 carries a yoke 30 at one of its ends for connection with another vehicle, as can be seen in Figure 4. Specifically to the present invention, the rod 4 carries a bar 41 extending longitudinally on the outer surface of the rod 4, on a generatrix of the latter, to the end of the rod 4 opposite the yoke 40. The locking device 1 according to the present invention is used to lock in position the rod 4 when the latter is in its position of maximum extension. The locking device 1 comprises a first locking part 5 carried by the rod 4 and a second locking part 6 carried by the tube 3, the first and second locking parts 5, 6 being capable of cooperating with one another. another to allow the locking or unlocking of the tube 3 and the rod
    4. If we refer more particularly to Figures 2 and 3, we can see that the first locking part 5 is secured to the end of the inner rod 4 opposite the end carrying the yoke 40. The first part lock 5 is in the form of an axial cylindrical tip 50, formed in one piece, welded or screwed to the end of the rod 4. The tip 50 is coaxial with the rod 4 and is substantially the same diameter than this. The tip 50 comprises, in order from the end of the rod 4, a first series of first tongues 51 regularly distributed angularly along a first circumference of the tip 50 and separated from each other in the direction circumferential by slots 52, a circumferential groove 53, a second series of first tabs 51 regularly distributed angularly along a second circumference of the endpiece 50 and separated from each other in the circumferential direction by slots 52, and a cylindrical piece 54 forming a bearing. In other words, the first and second series of first tabs 51 and slots 52 are arranged on either side of the groove 53.
    The first tongues 51 all have the same width (dimension in the circumferential direction) and the same thickness (dimension in the radial direction). There is therefore the same number of first tabs 51 and slots 52 on either side of the groove 52. In addition, the surface of the bottom of the slots 52 is flush with the surface of the bottom of the groove 53.
    One of the first tongues 51 of the first series is in the extension and continuity of the bar 41. The width of the bar 41 is equal to that of the first tongues 51.
    If we now refer to Figures 4 to 6, we can see that the second locking part 6 comprises a fixed ring 60, a crown 61 and a retaining flange 62.
    The ring 60 is secured to the end of the tube 3 opposite the yoke 30, for example by welding or screwing. More specifically, the ring 60 comprises a tubular part 600 having at one end a flange 601. The tubular part 600 is mounted on said end of the tube 3, the end face thereof being in abutment against an internal shoulder the tubular part 600. As can be better seen in Figure 5, the flange 601 has a radially inner side on which are provided a series of third tabs 603 regularly distributed angularly along the circumference of the flange 601 and separated from each other another in the circumferential direction by slots
    604. The third tongues 603 all have the same width and the same thickness.
    Crown 61 is an annular part having a radially inner side and a radially outer side, and of which a first end face is applied against the end face of flange 601. The radially inner side of crown 61 also has a series of second tongues 610 regularly distributed angularly along a circumference of the crown 61 and separated from each other in the circumferential direction by slots 611. The second tongues 610 and the slots 611 are provided on the flange side 601 and the side radially inside the crown 61 also has a smooth surface 612 on the holding flange side 62. The second tabs 610 all have the same width and the same thickness.
    The third tabs 603 have the same width as the second tabs 610, and there is therefore the same number of tabs 603 and 610. In the example shown, the bottom of the slots 604 is slightly set back from the bottom of the slots 611 , and the thickness of the third tongues 603 is correspondingly greater than that of the second tongues 610, such that the radially inner faces of the tongues 603 and 610 are all carried by the same theoretical cylinder. It is emphasized here that the radially inner faces of the various tabs mentioned above are all concave following an arc of a cylinder.
    In addition, the second tongues 610 have a length (dimension in the axial direction) which is substantially equal to the width (dimension in the axial direction of the rod 4) of the circumferential groove 53 of the rod 4.
    Still with reference to Figure 5, crown 61 comprises several axial slots 613 extending from one end face of crown 61 to the other end face, being regularly distributed angularly along the circumference. of the crown
    61. Each lumen 613 is an oblong and arcuate lumen.
    Crown 61 is held against flange 601 by retaining flange 62 which is applied against the second end face of crown 61.
    The retaining flange 62 is also an annular part therefore also having an inner side and an outer side. Several holes, here three, are provided through the retaining flange 62, being distributed angularly along the latter. Each of these holes gives onto a respective slot 613 of the crown 61 and is aligned with a respective threaded hole 606 provided in the flange 601, so as to allow the passage of screws 7 making it possible to link together the fixed ring 60, the crown 61 and the retaining flange 62. The various parts will be sized so that the retaining flange 62 does not block the crown 9 in rotation, for example by sizing the screws 7 so that there is a slight clearance between the fixed ring 60, the crown 61 and retaining flange 62. It should be noted here that slots 613, in addition to allowing screws 7 to pass and allowing rotation of crown 61 around the axis of tube 3, will come into abutment by their ends against the respective screw 7, so that the screws 7 form means for limiting the amplitude of rotation authorized for the crown 61. The crown 61 is movable in rotation between an unlocked position and a locked position.
    In the unlocked position, shown in Figure 6, tabs 603 and 610 are aligned and slots 604 and 611 are aligned.
    One of the slots 611 is also aligned with a notch 620 made in the radially inner side of the retaining flange 62, and whose width is equal to that of the slots 611. In the locked position, shown in Figure 5, the tabs 603 and 610 are no longer aligned: each third tab 603 is aligned with a slot 611 and each second tab 610 is aligned with a slot 604.
    The rotation of the crown 61 from the locked position to the unlocked position takes place along the arrow P in Figure 5, and against the action of elastic return means, such as for example tension-compression springs ( that is to say that can be used both in tension and in compression) 619 arranged in circular grooves 617 between the fixed ring 60 and the crown 61.
    Figure 9 shows crown 61 in front view. Note that the crown has three through-grooves 617 which extend from one end face of the crown 61 to the other end face. These grooves 617 are regularly distributed angularly along the circumference of the crown 61 and alternately with the slots 613. Each groove 617 is oblong and arcuate.
    Each groove 617 receives a tension-compression spring 619 (only one is shown here). The spring 619 is fixed: - on the one hand to a pierced tab 618 which is integral with the ring 61 and arranged at one end of the groove 617 and - on the other hand to a stud 608 integral with the flange 601 of the ring 60.
    Figure 10 shows a front view of flange 601.
    Note that this flange carries circular grooves 607 alternating with the threaded holes 606 receiving the screws 7. These grooves are non-through. They allow the spring 619 to be distributed freely outside its groove 617 during the pivoting of the crown 61.
    It would be possible to replace the nipples 608 by pierced tabs integral with the flange 601.
    We will now describe the operation of the locking device 1 with reference to Figures 7 and 8.
    Figure 7 shows the tow bar 2 during the extension of the rod 4 out of the tube 3. The locking device 1 is in the unlocked position and the bar 41 circulates in the notch 620 and the aligned slots 604 and 611. The bar 41 plays the role of a key and prevents the crown 61 from moving from the unlocked position to the locked position under the action of the elastic return means.
    When the rod 4 is at its position of maximum extension out of the tube 3, the groove 53 is positioned at the level of the series of second tabs 610 and slots
    611. In this position, the crown 61 is no longer locked in rotation by the bar 41 or the respective first tongue 51, and thus automatically switches to the locked position, under the action of the return means. Each second tongue 610 of crown 61 is then positioned between, on one side a first tongue 51 of the first series and, on the other side, a first tongue 51 of the second series.
    The second tongues 610 of the crown 61, which are kept fixed in position, thus prevent any relative axial movement of the rod 4 with respect to the tube 3: in one or the other direction, the first tongues 51, integral with the rod 4, come into abutment against the second fixed tongues 610 of the crown
    61.
    It is emphasized here that the tensile forces are no longer localized at the level of a lock, but on the contrary are distributed regularly around the axis of the rod 4 and of the tube 3 on the various tabs 51 and
    610. There is therefore no longer any risk of the rod 4 jamming in the tube 3 due to matting or deformation of the locks.
    In addition, each third tongue 603 of the fixed ring 60 is positioned between two first tongues 51 of the second series of first tongues 51 of the first locking part 5, thus ensuring immobilization in rotation of the rod 4 relative to the tube 3. Here again, the forces are not localized at one point, but are distributed all around the circumference, at the level of the contact surfaces between the tabs 51 and 603.
    it is therefore found that the locking device 1 locks in translation and in rotation the rod 4 with respect to the tube 3, and this automatically, reliably and with a very good distribution of the various forces.
    It can be emphasized here that the diameter and the length of the cylindrical part 54 of the first locking part 5 are chosen so that it forms a bearing surface ensuring the guidance of the rod 4 in the tube 3, in particular at the approach or at the starting from the maximum extension position of the rod 4. The unlocking control of the locking device 1 is manual.
    To this end, as can be seen in Figure 6, the crown 61 bears on its outer surface projections 614 facilitating its handling, as well as a marker 615 showing the direction of rotation leading to unlocking.
    Icons 616 are provided on projections 614 and a marker 605 located on the outside of fixed ring 60, associated with icons 616, makes it possible to visually determine whether crown 61 is in the locked or unlocked position.
    Locking can be completely automatic once the bar is fixed on one side to the towing vehicle and on the other to the towed vehicle (or trailer). Indeed, it suffices to have a camera on the vehicle allowing the position of the crown to be identified from a distance.
    As described previously, crown 61 automatically adopts its locked position once the telescopic rod has reached its maximum extension.
    The camera makes it possible to locate this locking without having to get out of the vehicle.
    The locking is reliable and the visualization of the locked position of the crown guarantees that the locking is effective. | It is understood that the particular embodiment which has just been described has been given as an indication and not limiting and that modifications can be made without thereby departing from the scope of the present invention.
    权利要求:
    Claims (1)
    [1]
    CLAIMS 1 —- Locking device (1) for a telescopic tow bar (2), which tow bar (2) comprises a cylindrical rod (4) slidably mounted in a cylindrical tube (3), the locking device (1 ) comprising a first locking part (5) carried or intended to be carried by the rod (4) and a second locking part (6) carried or intended to be carried by the tube (3), the first and second parts of lock (5, 6) being capable of cooperating with each other to prevent any relative movement in axial translation between the tube (3) and the rod
    (4) when the latter is in a position of maximum extension outside the tube (3), the locking device (1) being characterized in that:
    - the first locking part (5) has a radially outer side which comprises first and second series of first tongues (51) located along respectively a first and a second circumference of the first locking part (5) , two successive first tongues (51) of the same series being separated by a notch (52), the first and second series of first tongues (51) being separated, in the axial direction, by a circumferential groove (53), and
    - the second locking part (6) comprises:
    - a crown (61) having a radially inner side which comprises a series of second tongues (610) located along a circumference of the crown (61), two successive second tongues (610) of the same series being separated by a notch (611), the second tabs (610) having a length, in the axial direction, at most equal to the width of the groove (53) of the first locking part (5), and - mounting means for mounting the crown (61) on the tube (3) for rotation between a first so-called locked angular position and a second so-called unlocked angular position, the first and second locking parts (5, 6) being dimensioned such that the crown ( 61) is adapted, in use, to be positioned around the first locking part (5) with the second tongues (610) of the crown (61) extending into the said groove (53) and, depending on the position angle of the crown (61), i.e. every second my tongue (610) is between two first tongues (51) of the first locking part (1), the locking device (1) then being in the locked position, or each second tongue (610) is between two slots ( 53) of the first locking part (1), the locking device (1) then being in the unlocked position.
    2 - Locking device (1) according to claim 1, characterized in that it also comprises means for locking in rotation of the first locking part (5) relative to the mounting means of the second locking part ( 6) when the crown (61) is positioned around the first locking part (5) with the second tongues (610) of the crown (61) extending into the said groove (53), the rotation locking means comprising , preferably, a series of third tongues (603) located along a circumference of a radially inner side presented by the means for mounting the second locking part (6), two successive third tongues (603) being separated by a slot (604), the third tabs (603) being the same number as the second tabs (610) of the crown (61) and having the same width, in the circumferential direction, whereby, when the crown (61 ) is positioned at turn of the first locking part (5) with the second tongues (610) of the crown (61) extending into said groove (53), each first tongue (610) of the second series is in a slot (604 ) between two third tongues (603), the first tongues (610) of the second series thus also forming part of the rotation locking means. 3 - Locking device (1) according to any one of claims 1 and 2, characterized in 'the fact that the first tabs (51), the second tabs (610) and, where appropriate, the third tabs (603) , are regularly distributed angularly.
    4 - Locking device (1) according to any one of claims 1 to 3, characterized in that the mounting means of the second locking part (6) comprise a so-called fixed ring (60) intended to be secured from one end of a tube (3) of a tow bar (2), the fixed ring (69) having a radially inner side on which are located, if necessary, the third tabs (603).
    5 - Locking device (1) according to claim 4, characterized in that the mounting means of the second locking part {6) also comprise an annular retaining flange (62), the ring (61) being disposed between the fixed ring (60) and the retaining flange (61), the retaining flange (62) being linked to the fixed ring (60) by screws (7) extending in holes provided for this purpose and distributed angularly in the fixed ring (60) and the retaining flange (62), each screw (7) further extending through a respective axial through slot (613) provided in the crown (61), the slots (613) being oblong and arcuate so as to allow rotation of the crown (61).
    6 - Locking device (1) according to any one of claims 1 to 5, characterized in that it comprises means for limiting the amplitude of rotation of the crown (61), if necessary which can be formed by the screws (7) connecting the retaining flange (62) and the fixed ring (60) and against which the ends of the slots (613) of the crown (61) can come into abutment.
    7 - Locking device according to any one of claims 1 to 6, characterized in that it further comprises elastic return means of the crown (61) to the locked position. 8 - Locking device according to any one of claims 1 to 7, characterized in that the crown (61) carries on its outer surface projections (614) distributed angularly and facilitating the manual control of the rotation of the crown ( 61), to the unlocked position, by a user. 9 - Telescopic tow bar (2) comprising a cylindrical rod (4) slidably mounted in a cylindrical tube (3), each of the tube (3) and the rod (4) being provided, at a first end, with means of connection to a vehicle, such as a tow hitch, the tow bar (2) also comprising a locking device (1) comprising a first locking part (5) carried by the rod (4) and a second part of lock (6) carried by the tube (3), the first and second locking parts (5, 6) being capable of cooperating with each other to prevent any relative movement in axial translation between the tube (3) and the rod (4) when the latter is in a position of maximum extension outside the tube (3), the tow bar (2) being characterized in that the locking device (1) is as defined in any one of claims 1 to 8. 10 - Tow bar (2) according to claim 9, characterized by the the fact that it comprises means for holding the locking device (1) in the unlocked position as long as the rod (4) has not reached its position of maximum extension, these means for holding preferably comprising a bar (41) which is carried on the outer surface of the rod (4), extends over a generatrix of the rod (4) and ends at the level of a first tongue (51) of the first series of tongues (51 ) of the first locking part (5), and, where appropriate, a notch (620) which is formed in the radially inner side of the retaining flange (62) and positioned so as to be aligned with one of the slots (611) of the crown (61) when the latter is in the unlocked position, such that during the extension or retraction movement of the rod (4) relative to the tube (3), the bar (41) circulates in a crenel (611) of the crown (61) and, if necessary, in the notch (620) and a crenel (604) between two third my tongues (603), the bar (41) thus opposing any rotation of the crown (61) as long as the rod (4) has not reached its position of maximum extension.
    类似技术:
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    同族专利:
    公开号 | 公开日
    EP3476629B1|2020-11-25|
    FR3074098B1|2021-05-07|
    EP3476629A1|2019-05-01|
    FR3074098A1|2019-05-31|
    BE1027525A1|2021-03-19|
    ES2854280T3|2021-09-21|
    EP3476629B8|2021-01-20|
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    DE1655092A1|1967-10-14|1971-07-15|Siemensmeyer Josef Anton|Pull and push rod device with variable length adjustment|
    DE29921551U1|1999-12-07|2000-04-06|Veeser Georg|Automatically telescopic and locking towing bar|
    US20090097926A1|2006-04-07|2009-04-16|Paulsen Ole K|Connector Assembly for an Off Shore Riser|
    US7390007B2|2005-06-06|2008-06-24|Ibis Tek, Llc|Towbar system|
    US7942435B1|2009-04-15|2011-05-17|Automatic Equipment Manufacturing Company|Tow bar|
    法律状态:
    2022-02-09| FG| Patent granted|Effective date: 20220104 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1701128A|FR3074098B1|2017-10-30|2017-10-30|LOCKING DEVICE FOR TELESCOPIC TOWING BAR FOR VEHICLE AND TELESCOPING TOWING BAR INCLUDING SUCH DEVICE|
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