• 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:
    - Towing system for rolling stock, in particular for helicopters. - Said towing system (1) comprises a bar, a first attachment device (3) disposed at a first end of the bar (4), the first attachment device (3) being able to attach the towing system a towing vehicle, a second attachment device (2) arranged at a second end of the bar (4), the second attachment device (2) being able to attach the towing system (1) to a machine towing to tow, the second attachment device (2) comprising a fork adapted to retain at least one wheel (5) of the rolling machine, the fork having two longitudinal members between which at least one wheel (5) of the machine wheel is adapted to be received, a spacing device (7) adapted to change the spacing between the two longitudinal members and a holding device adapted to maintain the wheel (5) between the two longitudinal members.
    公开号:FR3048639A1
    申请号:FR1652030
    申请日:2016-03-10
    公开日:2017-09-15
    发明作者:Daniel Rivard
    申请人:ORTEC EXPANSION；
    IPC主号:
    专利说明:

    TECHNICAL AREA
    The present invention relates to a towing system for a rolling machine and, in particular, an aircraft.
    STATE OF THE ART
    When an aircraft, including a helicopter, is towed to the ground, it is necessary that the towing system used for this purpose is able to maintain at least one front wheel of the aircraft. Depending on the type of aircraft, the size and / or configuration of the wheel or wheels may be different.
    The towing system may be more or less adapted depending on the type of aircraft that it must tow. Qr, it may be useful for a towing system to be able to tow several types of aircraft.
    EXPERT OF INVENTIQN
    The present invention aims to overcome this disadvantage, by providing a towing system easily adaptable to any type of rolling machine, and more particularly to an aircraft such as a helicopter in particular. To this end, the invention relates to a towing system comprising: - a bar comprising a longitudinal axis, - a first attachment device disposed at a first end of the bar, the first attachment device being able to attach the system towing a towing vehicle, - a second attachment device disposed at a second end of the bar, the second attachment device being adapted to attach the towing system to a rolling machine to tow.
    According to the invention, the second attachment device comprises a fork adapted to retain at least one wheel of the rolling machine.
    In addition, according to the invention, the fork has: - two spars between which at least one wheel of the rolling machine is adapted to be received, each spar having a longitudinal axis substantially parallel to the longitudinal axis of the bar, - a spacer device adapted to modify the spacing between the two longitudinal members, - a holding device adapted to hold the wheel between the two longitudinal members.
    Thus, thanks in particular to said fork and said spacing device, the towing system can be adapted to a given spacing for maintaining the wheel or wheels, including the front wheels of a helicopter. The towing system is then easily adaptable to any type of rolling gear, including aircraft, to tow.
    According to one feature, the spacer device comprises: - two sliding arms, each sliding arm having: a longitudinal axis forming an angle with the longitudinal axis of the bar, O a first part whose end is fixed at one end of a spar, and O a second part whose one end is fixed to the second end of the bar, the second part being able to slide in the first part along the longitudinal axis of the sliding arm, - an actuation device configured to cause the sliding arms to slide simultaneously.
    Preferably, the actuating device comprises: - four rods articulated in pairs to form a deformable parallelogram included in a plane substantially parallel to the longitudinal axes of the longitudinal members, the four rods being hinged at a first pair of opposite corners of the parallelogram according to a first articulation and a second articulation and at a second pair of opposed corners according to a third articulation and a fourth articulation, the first articulation being connected in rotation to the first part of a sliding arm along an axis perpendicular to the plane of the parallelogram, the second articulation being connected in rotation to the first part of the other sliding arm along an axis perpendicular to the plane of the parallelogram, - a threaded rod adapted to be screwed into a nut integral with the third articulation, the threaded rod having a first end rotatable er in a housing integral with the fourth joint, the threaded rod being configured so that a screwing or unscrewing in the nut is adapted to cause, respectively, an approximation or a distance between the first articulation and the second articulation, said approximation or said distance being able to cause a sliding of the second part of each arm in the first part, said sliding being able to cause the decrease or increase of the spacing between the longitudinal members.
    In addition, the threaded rod comprises a second end provided with a device for controlling the screwing and unscrewing of the threaded rod in the nut.
    In addition, the support device comprises for each spar: at least one first roller fixed to the free end of the spar, at least one second roller connected in translation to the spar along the longitudinal axis of the spar with the aid of a guide element, an elastic device capable of exerting a first force on the second roller along the longitudinal axis of the spar, the first force being able to cause the second roller to approach the first roller so that the second roller is able to force the wheel of the rolling machine to rest against the first roller, - a control device whose actuation makes it possible to exert a second force opposite to the first force, the second force being able to bring the second roller to move away from the first roller so as to clear the wheel of the rolling machine.
    Furthermore, the control device comprises at least one winch and two cables, each cable having a first end attached to the winch and a second end attached to the second roller, the actuation of the winch being able to pull each of said cables which are suitable for exert the second force on the second roller.
    Advantageously, the guide element comprises: a support of the second roller on which the second roller is fixed, and a rod fixed on the beam parallel to the longitudinal axis of the beam, the rod being able to guide the support in translation. the second roller.
    According to one variant, the elastic device comprises a traction spring able to exert the first force on the support of the second roller.
    In addition, the towing system includes steerable wheels attached along the bar and fork so that the towing system is movable.
    Preferably, the system comprises a force sensor fixed on the bar adapted to detect the traction and the torsion exerted on the bar.
    BRIEF DESCRIPTION OF THE FIGURES The invention, with its features and advantages, will emerge more clearly on reading the description given with reference to the appended drawings, in which: FIG. 1 represents a perspective view of a towing system in a of achievement; - Figure 2 shows a perspective view of the second fastening device of the towing system; - Figure 3 shows a perspective view of the first fastening device of the fastening system; - Figure 4 shows a perspective view of the spacer device.
    DETAILED DESCRIPTION
    The remainder of the description will refer to the figures cited above. The invention relates to a towing system 1 comprising a bar 4 provided with a longitudinal axis 4.1.
    The towing system 1 further comprises a first attachment device 3 disposed at a first end of the bar 4. The first attachment device 3 makes it possible to attach the towing system to a conventional towing vehicle. For example, the towing vehicle is a tractor.
    The towing system also comprises a second attachment device 2 disposed at a second end of the bar 4. The second attachment device 2 makes it possible to attach the towing system 1 to a towing vehicle to be towed. For example, the rolling vehicle is a plane or a helicopter, provided with wheels and able to roll on the ground.
    The second attachment device 2 comprises a fork adapted to retain at least one wheel 5 of the rolling machine. The fork has two longitudinal members 6.1 and 6.2 between which at least one wheel 5 of the rolling machine can be received. Each spar 6.1 and 6.2 has a longitudinal axis 6.3 and 6.4 substantially parallel to the longitudinal axis 4.1 of the bar 4. By way of example, the wheel or wheels 5 are part of a landing gear of an aircraft, preferably the landing gear before a helicopter.
    In the example described below, it is considered that the rolling machine comprises two wheels 5 forming part of the same train or rolling assembly (not shown).
    The fork also comprises a spacing device 7 and a holding device 9.1.9.2, 8.1.8.2. The spacing device 7 makes it possible to modify the spacing between the two longitudinal members 6.1 and 6.2. The retaining device 9.1, 9.2, 8.1, 8.2 keeps the wheels 5 between the two longitudinal members 6.1.6.2.
    According to a preferred embodiment, the spacer device 7 comprises two sliding arms 10.1, 10.2 and an actuating device.
    Each sliding arm 10.1, 10.2 has a longitudinal axis 10.3, 10.4 making an angle with the longitudinal axis 4.1 of the bar 4 (Figure 4). Each sliding arm further comprises a first portion 11.1, 11.2, one end of which is fixed to one end of a spar 6.1, 6.2, and a second portion 12.1, 12.2, one end of which is fixed to the second end of the bar 4. The second part 12.1, 12.2 can slide in the first part 11.1, 11.2 along the longitudinal axis 10.3, 10.4 of the sliding arm 10.1, 10.2.
    The actuating device is configured to cause the sliding arms 10.1, 10.2 to slide simultaneously.
    According to a configuration, the actuating device comprises four rods 13 articulated in pairs to form a deformable parallelogram included in a plane substantially parallel to the longitudinal axes 6.3, 6.4 of the longitudinal members 6.1, 6.2. The four rods 13 are hinged at a first pair of opposite corners of the parallelogram along a first hinge 14.1 and a second hinge 14.2 and at a second pair of opposite corners according to a third hinge 14.3 and a fourth hinge 14.4, The first hinge 14.1 is connected in rotation to the first portion 11.1 of a sliding arm 10.1 along an axis perpendicular to the plane of the parallelogram. The second articulation 14.2 is connected in rotation to the first portion 11.2 of the other sliding arm 10.2 along an axis perpendicular to the plane of the parallelogram.
    The actuating device further comprises a threaded rod 15 adapted to be screwed into a nut integral with the third joint 14.3. The threaded rod 15 has a first end rotatable in a housing integral with the fourth articulation 14.4. The threaded rod 15 is configured so that a screwing or unscrewing in the nut is adapted to cause, respectively, an approximation or a distance between the first hinge 14.1 and the second hinge 14.2. Said approximation or said distance is able to cause a sliding of the second portion 12.1, 12.2 of each arm 10.1, 10.2 in the first part 11.1, 11.2. Said sliding is able to cause the decrease or the increase of the spacing between the longitudinal members 6.1, 6.2. Thus, when the third articulation 14.3 deviates from the fourth articulation 14.4, the spacing between the longitudinal members 6.1, 6.2 decreases. When the third articulation 14.3 approaches the fourth articulation 14.4, the spacing between the longitudinal members 6.1, 6, 2 increases.
    The threaded rod 15 may comprise a second end provided with a control device 16 for screwing and unscrewing the threaded rod 15 in the nut.
    According to one embodiment, the retaining device 9.1, 9.2, 8.1, 8.2 comprises for each spar 6.1, 6.2 at least a first roller 8.1, 8.2 fixed to the free end of the spar 6.1.6.2. Preferably, the holding device comprises for each spar 6.1, 6.2 two first rollers 8.1, 8.2 arranged in parallel.
    The holding device also comprises at least one second roller 9.1, 9.2 connected in translation to the beam 6.1, 6.2 along the longitudinal axis 6.3, 6.4 of the beam 6.1, 6.2 with the aid of a guide element which guides a movement of the beam. second roller 9.1.9.2 parallel to the longitudinal axis 6.3, 6.4 of the spar 6.1, 6.2. Preferably, the holding device comprises for each spar 6.1, 6.2 two second rollers 9.1, 9.2 arranged in parallel.
    The holding device also comprises an elastic device 17.1, 17.2 adapted to exert a first force 19 on the second roller 9.1, 9.2 along the longitudinal axis 6.3, 6.4 of the spar 6.1, 6.2. The first force 19 makes it possible to bring the second roller 9.1.9.2 to get closer to the first roller 8.1.8.2 so that the second roller 9.1.9.2 is able to force the wheel 5 of the rolling machine to lean against the first roller 8.1.8.2.
    The elastic device 17.1, 17.2 may comprise a tension spring capable of exerting the first force 19 on the support 23.1, 23.2 of the second roller 9.1.9.2.
    In addition, the holding device comprises a control device 18, 22.1, 22.2 whose actuation makes it possible to exert a second force 20 opposite to the first force 19. The second force 20 makes it possible to bring the second roller 9.1, 9.2 to move away from the first roller 8.1, 8.2 so as to disengage the wheel 5 of the rolling machine.
    According to one configuration, the control device 18, 22.1, 22.2 comprises at least one winch 18 and two cables 22.1, 22.2. Each cable 22.1, 22.2 has a first end attached to the winch 18 and a second end attached to the second roller 9.1.9.2 The operation of the winch 18 makes it possible to pull each of said cables 22.1, 22.2 which are able to exert the second force 20 on the second roller 9.1.9.2.
    According to one configuration, the guide element comprises a support 23.1.23.2 of the second roller 9.1.9.2 on which is fixed the second roller 9.1, 9.2, and a rod 24.1, 24.2 fixed on the spar 6.1, 6.2 parallel to the axis longitudinal 6.3, 6.4 of the spar 6.1.6.2. The rod 24.1, 24.2 makes it possible to guide in translation the support 23.1, 23.2 of the second roller 9.1.9.2.
    The towing system 1 may be provided with steerable wheels 25 secured along the bar 4 and the fork so that the towing system 1 is movable.
    The towing system 1 may also include a force sensor 21 fixed to the bar. This sensor 21 makes it possible to detect the traction and / or the torsion exerted on the bar 4.
    The present description details various embodiments and configurations or variants with reference to figures and / or technical characteristics. Those skilled in the art will understand that the various technical characteristics of the various modes or configurations can be combined with one another to obtain other embodiments and configurations, unless the opposite is explicitly mentioned or if these technical characteristics are not explicitly mentioned. incompatible. Likewise, a technical feature of an embodiment or configuration may be isolated from the other technical features of this embodiment unless the reverse is mentioned. In the present description, many specific details are provided for illustrative and not limiting, so as to detail precisely the invention. Those skilled in the art will understand, however, that the invention can be realized in the absence of one or more of these specific details or with variants. On other occasions, certain aspects are not detailed so as to avoid obscuring and weighing down the present description, and the person skilled in the art will understand that various and varied means may be used and that the invention not limited to the examples described only.
    It should be apparent to those skilled in the art that the present invention allows embodiments in many other specific forms without departing from the scope of the invention as claimed. Therefore, the present embodiments should be considered by way of illustration, but may be modified within the scope defined by the scope of the appended claims, and the invention should not be limited to the details given above.
    权利要求:
    Claims (10)
    [1" id="c-fr-0001]
    Towing system (1) comprising: - a bar (4) comprising a longitudinal axis (4.1), - a first attachment device (3) disposed at a first end of the bar (4), the first device clip (3) being adapted to attach the towing system to a towing vehicle; - a second fastening device (2) disposed at a second end of the bar (4), the second fastening device (2) being able to attach the towing system (1) to a vehicle to be towed, characterized in that the second attachment device (2) comprises a fork adapted to retain at least one wheel (5) of the rolling machine, the fork having: - two longitudinal members (6.1, 6.2) between which at least one wheel (5) of the rolling machine is adapted to be received, each spar (6.1, 6.2) having a longitudinal axis (6.3, 6.4) substantially parallel the longitudinal axis (4.1) of the bar (4), - a spacer (7) adapted to modify the spacing between the two longitudinal members (6.1, 6.2), - a holding device (9.1, 9.2, 8.1, 8.2) able to hold the wheel (5) between the two longitudinal members (6.1.6.2).
    [2" id="c-fr-0002]
    2. System according to claim 1, characterized in that the spacing device (7) comprises: - two sliding arms (10.1, 10.2), each sliding arm (10.1, 10.2) having: O a longitudinal axis (10.3, 10.4) ) making an angle (a) with the longitudinal axis (4.1) of the bar (4), O a first portion (11.1, 11.2) having one end attached to one end of a spar (6.1, 6.2), and ο a second part (12.1, 12.2) whose end is fixed to the second end of the bar (4), the second part (12.1, 12.2) being able to slide in the first part (11.1, 11.2) along the axis longitudinal (10.3, 10.4) sliding arm (10.1, 10.2); - an actuating device configured to cause simultaneous sliding of the sliding arms (10,1, 10.2).
    [3" id="c-fr-0003]
    3. System according to claim 2, characterized in that the actuating device comprises: - four rods (13) articulated in pairs to form a deformable parallelogram included in a plane substantially parallel to the longitudinal axes (6.3, 6.4) of the longitudinal members (6.1, 6.2), the four rods (13) being hinged at a first pair of opposite corners of the parallelogram in a first hinge (14.1) and a second hinge (14.2) and at a second pair of corners opposed by a third articulation (14,3) and a fourth articulation (14.4), the first articulation (14.1) being connected in rotation to the first part (11.1) of a sliding arm (10.1) along an axis perpendicular to the plane of the parallelogram, the second articulation (14.2) being rotatably connected to the first portion (11.2) of the other sliding arm (10.2) along an axis perpendicular to the plane of the parallelogram, - a rod file tee (15) adapted to be screwed into a nut integral with the third articulation (14.3), the threaded rod (15) having a first end rotatable in a housing integral with the fourth articulation (14.4), the threaded rod (15 ) being configured so that a screwing or unscrewing in the nut is able to cause, respectively, an approximation or a distance between the first articulation (14.1) and the second articulation (14.2), said bringing together or said removal being suitable to cause a sliding of the second part (12.1, 12.2) of each arm (10.1, 10.2) in the first part (11.1, 11.2), said sliding being able to cause the decrease or increase of the spacing between the longitudinal members (6.1, 6.2).
    [4" id="c-fr-0004]
    4. System according to claim 3, characterized in that the threaded rod (15) comprises a second end provided with a control device (16) of the screwing and unscrewing of the threaded rod (15) in the nut.
    [5" id="c-fr-0005]
    5. System according to any one of claims 1 to 4, characterized in that the holding device (9.1, 9.2, 8.1, 8.2) comprises for each spar (6.1, 6.2): - at least a first roller (8.1, 8.2) attached to the free end of the spar (6.1.6.2), - at least one second roller (9.1, 9.2) connected in translation to the spar (6.1, 6.2) along the longitudinal axis (6.3, 6.4) of the spar ( 6.1, 6.2) with the aid of a guide element, - an elastic device (17.1, 17.2) able to exert a first force (19) on the second roller (9.1, 9.2) along the longitudinal axis (6.3, 6.4) of the spar (6.1, 6.2), the first force (19) being able to bring the second roller (9.1, 9.2) closer to the first roller (8.1, 8.2) so that the second roller (9.1, 9.2) is able to force the wheel (5) of the rolling machine to rest against the first roller (8.1, 8.2), - a control device (18, 22.1, 22.2) whose actuation makes it possible to exercise a second e force (20) opposite the first force (19), the second force (20) being able to cause the second roller (9.1, 9.2) to move away from the first roller (8.1, 8.2) so as to disengage the wheel (5) of the rolling machine.
    [6" id="c-fr-0006]
    6. System according to claim 5, characterized in that the control device (18, 22.1, 22.2) comprises at least one winch (18) and two cables (22.1, 22.2), each cable (22.1, 22.2) having a first end attached to the winch (18) and a second end fixed to the second roller (9.1, 9.2), the operation of the winch (18) being able to pull each of said cables (22.1, 22.2) which are able to exert the second force ( 20) on the second roller (9.1, 9.2).
    [7" id="c-fr-0007]
    7. System according to claim 5, characterized in that the guide element comprises: - a support (23.1, 23.2) of the second roller (9.1, 9.2) on which is fixed the second roller (9.1, 9.2), and - a rod (24.1, 24.2) fixed on the spar (6.1, 6.2) parallel to the longitudinal axis (6.3, 6.4) of the spar (6.1, 6.2), the rod (24.1, 24.2) being able to guide in translation the support (23.1, 23.2) of the second roller (9.1, 9.2).
    [8" id="c-fr-0008]
    8. System according to one of claims 5 to 7, characterized in that the elastic device (17.1, 17.2) comprises a tension spring adapted to exert the first force (19) on the support (23.1, 23.2) of the second roller (9.1 , 9.2).
    [9" id="c-fr-0009]
    9. System according to any one of claims 1 to 8, characterized in that the towing system (1) comprises steerable wheels (25) fixed along the bar (4) and the fork so that the system towing (1) is movable.
    [10" id="c-fr-0010]
    10. System according to any one of claims 1 to 9, characterized in that the system comprises a force sensor (21) fixed on the bar (4) adapted to detect the traction and torsion exerted on the bar (4) .
    类似技术:
    公开号 | 公开日 | 专利标题
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    同族专利:
    公开号 | 公开日
    FR3048639B1|2018-04-06|
    EP3216703B1|2019-05-15|
    US20170320594A1|2017-11-09|
    EP3216703A1|2017-09-13|
    US10179659B2|2019-01-15|
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    法律状态:
    2017-03-31| PLFP| Fee payment|Year of fee payment: 2 |
    2017-09-15| PLSC| Publication of the preliminary search report|Effective date: 20170915 |
    2018-03-29| PLFP| Fee payment|Year of fee payment: 3 |
    2019-03-29| PLFP| Fee payment|Year of fee payment: 4 |
    2020-03-31| PLFP| Fee payment|Year of fee payment: 5 |
    2021-12-10| ST| Notification of lapse|Effective date: 20211105 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1652030|2016-03-10|
    FR1652030A|FR3048639B1|2016-03-10|2016-03-10|TOWING SYSTEM FOR ROLLER, ESPECIALLY FOR HELICOPTER.|FR1652030A| FR3048639B1|2016-03-10|2016-03-10|TOWING SYSTEM FOR ROLLER, ESPECIALLY FOR HELICOPTER.|
    EP17159365.0A| EP3216703B1|2016-03-10|2017-03-06|Towing system for a vehicle, particularly for a helicopter|
    US15/450,481| US10179659B2|2016-03-10|2017-03-06|Towing system for a travelling machine, in particular for a helicopter|
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