IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
|
출원번호 |
US-0267544
(2011-10-06)
|
등록번호 |
US-8672271
(2014-03-18)
|
우선권정보 |
EP-10425325 (2010-10-06) |
발명자
/ 주소 |
|
출원인 / 주소 |
|
대리인 / 주소 |
McDonnell Boehnen Hulbert & Berghoff LLP
|
인용정보 |
피인용 횟수 :
1 인용 특허 :
8 |
초록
▼
A door assembly, in particular for a helicopter, has a post; a door fitted to the post by a first and second hinge arranged on an outer wall of the post, so as to rotate about a hinge axis to open and close a door opening; and an emergency release device having a release handle, and a stem which ext
A door assembly, in particular for a helicopter, has a post; a door fitted to the post by a first and second hinge arranged on an outer wall of the post, so as to rotate about a hinge axis to open and close a door opening; and an emergency release device having a release handle, and a stem which extends through the post along a release axis substantially perpendicular to the hinge axis, rotates axially, in response to operation of the release handle, from a first to a second angular position to detach the door from the post, and is fixed at one axial end to the first hinge; the release handle being connected to the stem to rotate together with the stem about its release axis.
대표청구항
▼
1. A door assembly (1), in particular for a helicopter, having a door opening (3) and comprising: a post (6);a door (8) fitted to said post by a first and second hinge (28, 27) to rotate about a hinge axis (9) to open and close said door opening (3); said first and second hinge (28, 27) being locate
1. A door assembly (1), in particular for a helicopter, having a door opening (3) and comprising: a post (6);a door (8) fitted to said post by a first and second hinge (28, 27) to rotate about a hinge axis (9) to open and close said door opening (3); said first and second hinge (28, 27) being located on an outer wall (31) of said post (6); said first hinge (28) comprising a fastening body (39) resting in a fixed position on said outer wall (31); andan emergency release device (50) comprising a release handle (51);the door assembly (1) being characterized in that the emergency release device (50) further comprises a first stem (44), which extends through said post (6) along a release axis (45) substantially perpendicular to said hinge axis (9), rotates axially, in response to operation of said release handle (51), from a first to a second angular position to detach said door (8) from said post (6), is connected, at one axial end (43) and by a releasable connecting device (49), to said fastening body (39) of said first hinge (28) in the first angular position, and is disconnected from said fastening body (39) in the second angular position;in that said release handle (51) is connected to said first stem (44) to rotate together with said first stem (44) about said release axis (45); andin that said emergency release device (50) comprises a spring (48) pre-loaded to produce a force which tends to move said fastening body (39) axially away from said first stem (44). 2. A door assembly as claimed in claim 1, wherein said releasable connecting device comprises a screw-nut screw connection (49). 3. A door assembly as claimed in claim 1, wherein said second hinge (27) comprises: a hinge seat (35) fixed to one (6) of said post and said door; anda hinge pin (36) which is fixed to the other (8) of said post and said door, projects from a connecting arm (37) along said hinge axis (9) to engage said hinge seat (35), and faces in such a direction as to allow said door (8) to drop freely off said post (6). 4. A door assembly as claimed in claim 1, wherein said first stem (44) is fixed along said release axis (45). 5. A door assembly as claimed in claim 4, wherein said first stem (44) is connected to said post (6) by a first positioning device (57) comprising at least one rotary eccentric component. 6. A door assembly as claimed in claim 5, wherein said first positioning device (57) comprises two eccentric rotary bushings (62, 63) nested one inside the other. 7. A door assembly as claimed in claim 1, comprising a further connecting device (34) connecting said second hinge (27) to said post (6) and in turn comprising: a second stem (44a) fixed at one end (43a) to a second fastening body (29) of said second hinge (27), and extending through said post (6) along a second release axis (45a) substantially perpendicular to said hinge axis (9), anda second positioning device (57a) located between said second stem (44a) and said post (6), and comprising at least one rotary eccentric component (62a, 63a). 8. A door assembly as claimed in claim 7, wherein said second positioning device (57a) comprises two rotary eccentric bushings (62a, 63a) nested one inside the other. 9. A door assembly as claimed in claim 1, wherein said release handle (51) rotates, with respect to said first stem (44) and about a lock axis perpendicular to said release axis (45), between an extracted position and a lowered position; and by comprising a retaining device (55) which only prevents rotation into said second angular position when said release handle (51) is in said lowered position.
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