A locking system comprising a handle mounted such that it can rotate about an operating spindle, wherein the handle can move between a locked position and an unlocked position, a hook mounted on the handle and secured in rotation therewith, wherein the hook has a throat in which a latching point of
A locking system comprising a handle mounted such that it can rotate about an operating spindle, wherein the handle can move between a locked position and an unlocked position, a hook mounted on the handle and secured in rotation therewith, wherein the hook has a throat in which a latching point of a structure is designed to engage when the handle is in the locked position. The locking system comprises a key associated with the hook and by means of which it is possible to pass from the locked position to the unlocked position of the handle, wherein the key can be removed when the handle is in the locked position and cannot be removed when the handle is in the unlocked position.
대표청구항▼
1. A locking system comprising: a handle mounted so as to be rotatable about an operating spindle, wherein the handle can move between a locked position and an unlocked position,a hook mounted on the handle and secured in rotation therewith, wherein the hook has a throat designed and arranged to rec
1. A locking system comprising: a handle mounted so as to be rotatable about an operating spindle, wherein the handle can move between a locked position and an unlocked position,a hook mounted on the handle and secured in rotation therewith, wherein the hook has a throat designed and arranged to receive a latching point of a structure when the handle is in the locked position,a key associated with the hook and via which it is possible to pass from the locked position to the unlocked position of the handle, wherein the key can be removed when the handle is in the locked position and cannot be removed when the handle is in the unlocked position,a counter-hook having a counter-throat and being mounted on the handle such that it can move in translation, in a translation direction, between a locked position in which the latching point is sandwiched between the counter-throat and the throat when the handle is in the locked position, an unlocked position in which the counter-throat is remote from the latching point allowing the handle to rotate from the locked position to the unlocked position, and a passing position which is distinct from the locked position and from the unlocked position, and in which the counter-hook occupies a space in which the latching point engages when the handle is in the locked position,a blocking plate mounted on the handle such that it can move in translation, in the translation direction, between a free position in which the blocking plate is in contact against the latching point when the handle is in the locked position, and a blocking position in which the blocking plate occupies a space in which the latching point engages when the handle is in the locked position, wherein the blocking plate comprises a resting recess,a blocking peg mounted on the counter-hook such that it can move in translation, in an unblocking direction, between a resting position in which it is received in the resting recess and an actuation position in which it is not received in the resting recess, andwherein the key is configured so as to engage with the blocking peg so as to cause the blocking peg to pass from the resting position to the actuation position and to cause the counter-hook to pass from the locked position to the unlocked position, andwherein the locking system further comprises a blocking member configured so as to prevent the key from being removed when the blocking peg is in the actuation position and the counter-hook is in the unlocked position, and to allow the key to be removed when the counter-hook is in the locked position. 2. The locking system as claimed in claim 1, further comprising: a first return member arranged to force the blocking plate into the blocking position and the blocking peg into the resting position, anda second return member arranged to force the counter-hook into the passing position. 3. The locking system as claimed in claim 2, wherein the blocking peg is forced into the resting position by the first return member. 4. The locking system as claimed in claim 1, wherein the passing position is beyond the locked position, with respect to the unlocked position. 5. The locking system as claimed in claim 1, wherein the blocking member comprises: a bore created in the counter-hook, in line with the blocking peg,a slot created in the blocking plate, parallel to the translation direction and delimited by two separated edges and ending in an eye provided such that it is placed facing the bore when the blocking plate is in the free position,on the key: at its end, a first concave recess designed to receive the blocking peg in the actuation position,below the first recess, a second concave recess designed to receive a fixed element of the handle when the counter-hook is in the passing position and the blocking plate is in the blocking position,below the second recess, a third concave recess designed to receive the two separated edges when the counter-hook leaves the locked position. 6. An aircraft nacelle comprising: two fan cowls mounted such that they can rotate about an opening axis which is parallel to the axis of the nacelle,wherein the first fan cowl has a latching point and a locking system comprising:a handle mounted so as to be rotatable about an operating spindle, wherein the handle can move between a locked position and an unlocked position,a hook mounted on the handle and secured in rotation therewith, wherein the hook has a throat designed and arranged to receive a latching point of a structure when the handle is in the locked position,a blocking plate mounted on the handle and configured to move in translation between a free position and a blocking position,a key associated with the hook and via which it is possible for the handle to pass from the locked position to the unlocked position, wherein the key can be removed when the handle is in the locked position and the blocking plate is in free position and cannot be removed when the handle is in the unlocked position and the blocking plate is in the blocking position,the handle being mounted such that it is rotatable on the second fan cowl about the operating spindle which is parallel to the opening axis. 7. An aircraft comprising a pylon beneath which is attached a nacelle as claimed in claim 6. 8. The aircraft nacelle of claim 6 further comprising: a counter-hook having a counter-throat and being mounted on the handle such that it can move in translation, in a translation direction, between a locked position in which the latching point is sandwiched between the counter-throat and the throat when the handle is in the locked position, an unlocked position in which the counter-throat is remote from the latching point allowing the handle to rotate from the locked position to the unlocked position, and a passing position which is distinct from the locked position and from the unlocked position, and in which the counter-hook occupies a space in which the latching point engages when the handle is in the locked position,a resting recess in the blocking plate, wherein in the free position the blocking plate is in contact against the latching point when the handle is in the locked position, and in the blocking position the blocking plate occupies a space in which the latching point engages when the handle is in the locked position,a blocking peg mounted on the counter-hook such that it can move in translation, in an unblocking direction, between a resting position in which it is received in the resting recess and an actuation position in which it is not received in the resting recess, andwherein the key is configured so as to engage with the blocking peg so as to cause the blocking peg to pass from the resting position to the actuation position and to cause the counter-hook to pass from the locked position to the unlocked position. 9. The aircraft nacelle as claimed in claim 8, further comprising: a first return member arranged to force the blocking plate into the blocking position and the blocking peg into the resting position, anda second return member arranged to force the counter-hook into the passing position. 10. The aircraft nacelle as claimed in claim 9, wherein the blocking peg is forced into the resting position by the first return member. 11. The aircraft nacelle as claimed in claim 6, wherein the passing position is beyond the locked position, with respect to the unlocked position. 12. The aircraft nacelle as claimed in claim 6, wherein the blocking member comprises: a bore created in the counter-hook, in line with the blocking peg,a slot created in the blocking plate, parallel to the translation direction and delimited by two separated edges and ending in an eye provided such that it is placed facing the bore when the blocking plate is in the free position,on the key: at its end, a first concave recess designed to receive the blocking peg in the actuation position,below the first recess, a second concave recess designed to receive a fixed element of the handle when the counter-hook is in the passing position and the blocking plate is in the blocking position,below the second recess, a third concave recess designed to receive the two separated edges when the counter-hook leaves the locked position. 13. A locking system comprising: a handle rotateably mounted about an operating spindle and configured to move between a locked position and an unlocked position,a hook secured to the handle and configured to rotate about the operation spindle, wherein the hook comprises a throat configured to engage a latching point of a structure when the handle is in the locked position,a key associated with the hook and configured to allow the handle to pass from the locked position to the unlocked position, wherein the key is only removable from the locking system when the handle is in the locked position,a counter-hook having a counter-throat and being mounted on the handle and configured to move in a translation direction between a locked position in which the latching point is sandwiched between the counter-throat and the throat when the handle is in the locked position, an unlocked position in which the counter-throat is remote from the latching point allowing the handle to rotate from the locked position to the unlocked position, and a passing position which is distinct from the locked position and from the unlocked position, and in which the counter-hook occupies a space in which the latching point engages when the handle is in the locked position,a blocking plate mounted on the handle and configured to move in the translation direction between a free position in which the blocking plate is in contact against the latching point when the handle is in the locked position and a blocking position in which the blocking plate occupies a space in which the latching point engages when the handle is in the locked position. 14. The locking system as claimed in claim 13 wherein the blocking plate comprises a resting recess, and further comprising: a blocking peg mounted on the counter-hook and configured to move in an unblocking direction between a resting position in which the blocking peg is received in the resting recess and an actuation position in which the blocking peg is not received in the resting recess, andwherein the key is configured so as to engage with the blocking peg so as to cause the blocking peg to pass from the resting position to the actuation position and to cause the counter-hook to pass from the locked position to the unlocked position. 15. The locking system as claimed in claim 14, further comprising: a first return member arranged to force the blocking plate into the blocking position and the blocking peg into the resting position, anda second return member arranged to force the counter-hook into the passing position. 16. The locking system as claimed in claim 15, wherein the blocking peg is forced into the resting position by the first return member. 17. The locking system as claimed in claim 13, wherein the passing position is beyond the locked position, with respect to the unlocked position. 18. The locking system as claimed in claim 14, wherein the locking system further comprises a blocking member configured so as to prevent the key from being removed when the blocking peg is in the actuation position and the counter-hook is in the unlocked position, and to allow the key to be removed when the counter-hook is in the locked position. 19. The locking system as claimed in claim 18, wherein the blocking member comprises: a bore created in the counter-hook, in line with the blocking peg,a slot created in the blocking plate, parallel to the translation direction and delimited by two separated edges and ending in an eye provided such that it is placed facing the bore when the blocking plate is in the free position,on the key: at its end, a first concave recess designed to receive the blocking peg in the actuation position,below the first recess, a second concave recess designed to receive a fixed element of the handle when the counter-hook is in the passing position and the blocking plate is in the blocking position,below the second recess, a third concave recess designed to receive the two separated edges when the counter-hook leaves the locked position.
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이 특허에 인용된 특허 (4)
Arnold Michael J. (Bangor GB5) Johnson Kenneth H. (Belfast GB5) Hall Brian J. (Comber GB5), Closure default indicator.
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