• 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 system (100) comprising: - a handle (104) rotatably mounted around a maneuvering axis (110), the handle (104) being movable between a locked position and an unlocked position, - A hook (102), mounted to rotate with the handle (104), the hook (102) having a footprint (116) in which a mooring point (52) of a structure is provided to engage, when the handle (104) is in the locked position, characterized in that the locking system (100) comprises a key (120) associated with the hook (102) and ensuring the transition from the locked position to the unlocked position of the handle ( 104), the key (120) being removable when the handle (104) is in the locked and irremovable position when the handle (104) is in the unlocked position.
    公开号:FR3015952A1
    申请号:FR1450001
    申请日:2014-01-02
    公开日:2015-07-03
    发明作者:Alain Bignolais；Christian Fabre
    申请人:Airbus Operations SAS；
    IPC主号:
    专利说明:

    [0001] The present invention relates to a cap locking system of an aircraft nacelle, an aircraft nacelle comprising such a locking system, and an aircraft comprising such a nacelle. An aircraft comprises at least one nacelle in which is housed an engine, for example of the turbojet type, and which is suspended from a mast. The nacelle usually has two hoods (fan cow in English) that can be opened to allow maintenance of the engine. Each cover is articulated about an opening axis parallel to the longitudinal axis of the nacelle and disposed at the top of the covers, and the two covers are arranged symmetrically on either side of the mast. Each cover is thus movable between a closed position in which the cover is disposed in the extension of the outer surface of the nacelle so as to cover the fan casing and an open position, in which an operator can access the engine.
    [0002] The lower edges of the hoods, which are located in the lower part of the nacelle, are substantially contiguous in the closed position and are held in this locked position by a plurality of locking systems which are distributed along the adjoining lower edges of the covers. Fig. 1 shows a section of a locking system 50 of the state of the art between a first cover 10 and a second cover 20. The first cover 10 carries a docking point 52, also called "keeper" which is attached to the the level of the lower edge of the first cap 10. The locking system 50 also comprises a hook 54 and a handle 58 which are rotatably mounted relative to each other about an axis of rotation 56.
    [0003] The handle 58 and the hook 54 are mounted together, rotatable at the lower edge of the second cover 20 via a hinge 62 about the axis of rotation 56. The hinge 62 consists of two links mounted movable in rotation relative to one another, one of which is rotatably mounted on the second cover 20 and the other door handle 58 / hook 54. In the engaged position, the hook 54 receives the mooring point 52, and the locking system 50 is locked when the handle is folded between the covers 10 and 20.
    [0004] Before take-off, an operator must verify that the locking system 50 is properly engaged and locked. Under their own weight, the covers 10 and 20 tend to come closer, and an operator may wrongly consider, after visual verification, that the locking system is engaged and locked.
    [0005] An object of the present invention is to provide a locking system which does not have the disadvantages of the prior art and which in particular allows an operator to visually certify that the locking system is effectively locked. For this purpose, there is provided a locking system comprising: - a handle mounted to rotate about an operating axis, the handle being movable between a locked position and an unlocked position, - a hook, rotatably mounted on the handle, the hook having a footprint in which a mooring point of a structure is provided to engage, when the handle is in the locked position, characterized in that the locking system comprises a key associated with the hook and ensuring the transition from the locked position to the unlocked position of the handle, the key being removable when the handle is in the locked position and irremovable when the handle is in the unlocked position. Such a locking system prevents the removal of the key until the lock is complete and an operator can easily see that the locking system is not properly locked since the key remains visible in the lower part of Platform. The characteristics of the invention mentioned above, as well as others, will appear more clearly on reading the following description of an exemplary embodiment, said description being made in connection with the attached drawings, among which: FIG. . 1 is a diagrammatic representation in section of a locking system of the state of the art, FIG. 2 shows the locking system according to the invention in the locked and locked position, FIG. 3 shows the locking system according to the invention in the engaged and unlocked position, FIG. 4 shows the unlocking of the locking system by an operator, FIG. 5 shows the locking system according to another view, FIG. 6 shows the locking system in the locked and unlocked position and in the locked position, FIG. 7 shows an enlargement of detail VII of FIG. 6 in the locking position, and FIG. 8 shows the same detail as that of FIG. 7 when the locking system is in the engaged and locked position. The invention is more particularly described in the context of a locking system for hoods of an aircraft nacelle fixed under a mast of said aircraft. As in the case of the state of the art, the hoods are movably mounted in rotation about an axis of opening parallel to the axis of the nacelle and on both sides of the mast. Fig. 2 shows a locking system 100 which is intended to lock two structures, in particular the lower edges of the two covers, the first of which has a mooring point 52.
    [0006] The lower edge of the second cover has a hinge 62 constituted in this case by two links movable in rotation relative to one another, and the first of which is rotatably mounted on the lower edge of the second cover, the second of which bears the locking system 100. The locking system 100 includes a hook 102 and a handle 104.
    [0007] The hook 102 is rotatably mounted on the handle 104 about an operating axis 110 parallel to the opening axis and, as for the state of the art, the handle 104 is rotatably mounted on the second The hook 102 has a recess 116 in which the anchoring point 52 engages in the engaged position, which corresponds to a locked position of the handle 104. handle 104 is thus movable between the locked position which ensures the locking of the two covers one on the other and where the anchoring point 52 engages in the hook 102, and an unlocked position in which the two covers are disengaged and where the mooring point 52 is not engaged in the hook 102. The locking system 100 includes a key 120 associated with the hook 102 and ensuring the transition from the locked position to the unlocked position of the handle 104, the key 120 being removable when the handle 104 is in the locked position and irremovable when the handle 104 is in the unlocked position.
    [0008] The term "associated" means that the movement of the hook 102 is possible only if the key 120 is present and an operator acts on the key 120. The term "removable" means that the key 120 can be removed only by action of an operator and the term "irremovable" means that the key 120 can not be removed even by an operator. Thus, as long as the locking system 100 is not engaged and locked, the key 120 remains apparent to the operator. Here, the locking system 100 comprises a counter-hook 106 which is rotatably mounted on the handle 104 about a trigger axis 112 parallel to and remote from the operating shaft 110, and which is disposed here at the opposite of the maneuvering axis 110, and substantially perpendicular to the anchoring point 52. The counter-hook 106 has a counter-cavity 114, which in the locked position is placed opposite the recess 116, and in which the mooring point 52 engages. The mooring point 52 is thus sandwiched between the recess 116 and the recess 114 and the handle 104 is then in the locked position. The locking system 100 has an engaged and locked position in which the hook 102 and the counter-hook 106 enclose the anchoring point 52 and where the handle 104 can not be operated since the counter-hook 106 fixes the handle 104 on the mooring point 52.
    [0009] Fig. 3 shows the locking system in an engaged and unlocked position in which the hook 102 receives the mooring point 52, but where the counter-hook 106 is remote from the mooring point 52 and where the handle 104 can be operated. The locking system 100 also has a disengaged position in which the mooring point 52 is housed neither in the hook 102 nor in the counter-hook 106 and where the two covers can be opened. In FIG. 3, the counter-hook 106 has a free position in which the counter-cavity 114 is at a distance from the anchoring point 52 (which corresponds to the unlocked position), allowing the handle 104 to be rotated from the locked position to the unlocked position. In FIG. 2, the counter-hook 106 has a clamping position in which the mooring point 52 is sandwiched between the counter-cavity 114 and the recess 116 (which corresponds to the locked position). The clamping position corresponds to the fact that the counter-hook 106 bears against the anchoring point 52. In FIG. 6, the counter-hook 106 has a blocking position distinct from the free position and the clamping position.
    [0010] The key 120 is provided to cooperate with the counter-hook 106 to manipulate it from one position to another. The locking system 100 includes locking means which are provided to prevent the withdrawal of the key 120 when the counter-hook 106 is in the locking position and allow the removal of the key 120 when the counter-hook 106 is in the position of Tightening. To enhance the visibility of the operator, a flame 160 (FIG 4) can be attached to the key 120. The locking position is beyond the clamping position relative to the free position.
    [0011] The locking system 100 comprises a spring 108 for constraining the counter-hook 106 in the locking position. The spring 108 here takes the form of a torsion spring which engages on the axis 112 and rests on the handle 104 and the counter-hook 106. FIG. 5 shows the face of the locking system 100 by which the key 120 is introduced into the counter-hook 106 in an insertion direction 154. For this purpose, the counter-hook 106 has two grooves 506 facing each other parallel to the introduction direction 154 and opening at an opening 502 in which the key 120 is introduced to manipulate the counter-hook 106. The key 120 has a shape adapted to allow to operate the counter-hook 106 in rotation. The key 120 has here for each groove 506, two male shapes 504 which are introduced into said groove 506. From the locked and engaged position, the operator introduces the key 120 in the counter-hook 106 in the direction of introduction 154, and rotates it from the clamping position (FIG 2) to the free position (FIG 3), which unlocks the handle 104 which is no longer secured to the mooring point 52. When the key 120 is released, the spring 108 recalls the counter-hook 106 which then passes without stopping by the clamping position, then continues to the locking position (Figure 6).
    [0012] The handle 104 can then be rotated about the operating axis 110, as indicated by the arrow 150 of FIG. 3. The mooring point 52 can then be disengaged from the hook 102 as in the case of the state of the art.
    [0013] Fig. 4 shows the locking system 100 when an operator 25 operates a rotation (arrow 152) of the key 120 in order to rotate the counter-hook 106 which passes from the clamping position to the free position. Fig. 6 shows the locking system 100 in the engaged and unlocked position, when the operator no longer exerts force on the key 120, that is to say when the counter-hook 106 is moved to the locking position under the effect of spring 108. FIG. 7 is an enlargement of detail VII of FIG. 6, when the counter-hook 106 is in the locking position. Fig. 8 is an enlargement of detail VII of FIG. 6 in the engaged and locked position, that is to say when the counter-hook 106 bears against the anchoring point 52 and has therefore pivoted from the locking position and returned to the clamping position. In the clamping position and in the insertion direction 154, the opening 502 opens freely and is not blocked.
    [0014] In the locking position and in the insertion direction 154, the opening 502 opens at a portion 704 of the handle 104 which at least partially closes said opening 502 in the extension of the grooves 506. The key 120 has a notch 702. FIG. 7 shows the locking system 100 when the counter-hook 106 is in the locking position and wherein said portion 704 which closes the opening 502 is housed in the notch 702. Thus, the removal of the key 120 is impossible. Fig. 8 shows the locking system 100 when the counter-hook 106 is in the clamping position. The rotation of the locking position to the clamping position causes the notch 702 of said part 704 to move apart and the key 120 is then free to be introduced or to withdraw grooves 506. From the disengaged position, the operator place the hook 102 around the anchoring point 52 which places the locking system 100 in the engaged and unlocked position.
    [0015] The operator then realizes the rotation of the counter-hook 106 by means of the key 120 by pivoting the counter-hook 106 from the blocking position to the free position, then the operator places the counter-hook 106 against the Mooring point 52. The operator then releases key 120, and under the action of spring 108, counter-hook 106 pivots to the locking position, but is stopped in the clamping position by the mooring point. 52. The locking system 100 is then in the engaged and locked position. The key 120 is then free and can be removed from the counter-hook 106. The blocking means are then constituted by the portion 704 which is arranged to partially close the opening 502 in the locking position, and not to close the opening 502 in the clamping position, and the notch 702 which abuts against the portion 704 in the locking position.
    权利要求:
    Claims (7)
    [0001]
    CLAIMS1) Locking system (100) comprising: - a handle (104) rotatably mounted about an operating axis (110), the handle (104) being movable between a locked position and an unlocked position, - a hook (102), rotatably mounted on the handle (104), the hook (102) having an impression (116) in which a mooring point (52) of a structure is provided to engage when the handle (104) is in the locked position, characterized in that the locking system (100) comprises a key (120) associated with the hook (102) and ensuring the transition from the locked position to the unlocked position of the handle (104), the key (120) being removable when the handle (104) is in the locked and irremovable position when the handle (104) is in the unlocked position.
    [0002]
    2) locking system (100) according to claim 1 characterized in that it comprises: - a counter-hook (106) having a counterprint (114) in which said mooring point (52) is provided for s engage, when the handle is in the locked position, and rotatably mounted on the handle (104), and - the key (120) being provided to cooperate with the counter-hook (106), the counter-hook (106) ) being provided to take alternately, under the action of the key (120), a free position in which the counter-cavity (114) is at a distance from the anchoring point (52) allowing the rotation of the handle (104) from the locked position to the unlocked position, a clamping position in which the docking point (52) is sandwiched between the counter-cavity (114) and the cavity (116), and a position, called lock, separate from the clamping position, the locking system (100) further comprising Locking pins are provided to prevent the removal of the key (120) when the counter-hook (106) is in the locking position and to allow the removal of the key (120) when the counter-hook (106) is in the clamping position .
    [0003]
    3) Locking system (100) according to one of claims 1 or 2, characterized in that it further comprises a flame (160) attached to the key (120).
    [0004]
    4) locking system (100) according to one of claims 1 or 2, characterized in that the locking position is beyond the clamping position relative to the free position, and in that the system of locking (100) further comprises a spring (108) bearing between the handle (104) and the counter-hook (106) to constrain the latter in the locking position.
    [0005]
    5) Locking system (100) according to one of claims 1 to 3, characterized in that the counter-hook (106) has two grooves (506) opening at an opening (502) in which the key ( 120) can be introduced, in that the key (120) has shapes (504) intended to be introduced into the grooves (506), in that the locking means are constituted by a portion (704) of the handle (104) which is arranged to partially close the opening (502) in the locking position, and not to close the opening (502) in the clamping position, and by a notch (702) of the key ( 120) which abuts against the portion (704) in the locking position.
    [0006]
    6) aircraft nacelle comprising: - two covers mounted mobile in rotation about an opening axis parallel to the axis of the nacelle whose first cover has a mooring point (52), and - a system of Lock (100) according to one of the preceding claims, the handle (104) is rotatably mounted on the second cover about an actuating axis (110) parallel to the opening axis.
    [0007]
    7) Aircraft having a mast under which is fixed a nacelle according to claim 5.
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    同族专利:
    公开号 | 公开日
    US20150184543A1|2015-07-02|
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    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
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    FR3085702A1|2018-09-12|2020-03-13|Airbus Operations|HOOD LOCKING SYSTEM|
    US11035155B2|2018-10-17|2021-06-15|Roy L. Fox, Jr.|Lever-lock release systems and methods|
    法律状态:
    2016-01-21| PLFP| Fee payment|Year of fee payment: 3 |
    2017-01-20| PLFP| Fee payment|Year of fee payment: 4 |
    2018-01-19| PLFP| Fee payment|Year of fee payment: 5 |
    2020-01-21| PLFP| Fee payment|Year of fee payment: 7 |
    2021-01-21| PLFP| Fee payment|Year of fee payment: 8 |
    2022-01-19| PLFP| Fee payment|Year of fee payment: 9 |
    优先权:
    申请号 | 申请日 | 专利标题
    FR1450001|2014-01-02|
    FR1450001A|FR3015952B1|2014-01-02|2014-01-02|HOOD LOCKING SYSTEM|FR1450001A| FR3015952B1|2014-01-02|2014-01-02|HOOD LOCKING SYSTEM|
    US14/575,363| US9624790B2|2014-01-02|2014-12-18|Fan cowl locking system|
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