IPC분류정보
국가/구분 |
United States(US) Patent
등록
|
국제특허분류(IPC7판) |
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출원번호 |
US-0565825
(1995-12-01)
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발명자
/ 주소 |
- Morris Joseph J.
- Grass Gerard G.
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대리인 / 주소 |
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인용정보 |
피인용 횟수 :
7 인용 특허 :
0 |
초록
▼
A helicopter cyclic control assembly for redirecting the thrust produced at a main rotor assembly includes a rotor disc control plate having arms with arm tubes therein for close, slideable insertion of slide rods, the slide rods being pivotally attached to bi-directional linear actuators, the bi-di
A helicopter cyclic control assembly for redirecting the thrust produced at a main rotor assembly includes a rotor disc control plate having arms with arm tubes therein for close, slideable insertion of slide rods, the slide rods being pivotally attached to bi-directional linear actuators, the bi-directional linear actuators being attached to the helicopter transmission casing or main truss works. The rotor disc control plate also having a neck tube with a bore which passes through the rotor disc control plate, through which an upper shaft passes and is rotatably engaged, the neck tube being perpendicular to the arm tubes. The upper shaft being fixedly attached at a distal end to the main rotor assembly, and rotatably engaged at a proximal end to a constant velocity joint such that as the motor is rotatably driving the upper shaft, the rotor disc control plate may be tilted relative to the helicopter body, the upper shaft tilting in cooperation with the rotor disc control plate, thereby changing the horizontal plane of the main rotor assembly, and redirecting the thrust produced at the main rotor assembly.
대표청구항
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[ What is claimed is:] [1.] A helicopter cyclic control assembly comprising;I. the body having a body upper surface and a body lower surface,II. the body having a body peripheral edge, the body peripheral edge joining the body upper surface and the body lower surface,III. the body having a first ver
[ What is claimed is:] [1.] A helicopter cyclic control assembly comprising;I. the body having a body upper surface and a body lower surface,II. the body having a body peripheral edge, the body peripheral edge joining the body upper surface and the body lower surface,III. the body having a first vertical axis,a. the first vertical axis being defined as a line running through a first point located on the body upper surface, the first point being equidistant from the body peripheral edge, and a second point located on the body lower surface, the second point being equidistant from the body peripheral edge,IV. the body having an elongated neck,a. the elongated neck being coaxial with the first vertical axis,b. the elongated neck having a neck tube,c. the elongated neck tube having a bore,i. the neck tube bore passing through the elongated neck and the body coaxially with the first vertical axis,ii. the neck tube bore having an open top end and an open bottom end, the open top end being locatable on the body upper surface and the open bottom end being locatable on the body lower surface,d. the neck tube having a first inner surface,i. the first inner surface being coextensive with the body upper surface and the body lower surface,e. the neck tube bore having diameter,V. the body having at least 3 arms radially and evenly spaced about it,a. the arms having a first arm portion and a second arm portion,i. the first arm portion and the second arm portion being continuous,ii. the first arm portion extending outwardly from the body and downwardly, away from the neck tube bore open top end,iii. the second arm portion extending outwardly from the first arm portion, perpendicular to the first vertical axis,b. the arms having an arm upper surface, the arm upper surface being coextensive with the body upper surface,c. the arms having an arm lower surface, the arm lower surface being coextensive with the body lower surface,d. the arms having an arm peripheral edge, the arm peripheral edge being coextensive with the body peripheral edge,e. the arms each having an arm tube located in the second arm portion, the arm tube having an arm tube bore,i. the arm tube bore having an arm tube open end and an arm tube closed end,aa. the arm tube open end being located at the arm peripheral edge,bb. the arm tube closed end being at the end of the arm tube opposite the open end,ii. the arm tube being coaxial with the second arm portion in which the arm tube is located,iii. the arm tube bore having an arm tube bore diameter,iv. the arm tube having a longitudinal axis, the longitudinal axis being one and the same with a line drawn from a center point of the arm tube bore diameter at the arm tube open end, to a center point of the arm tube bore diameter at the arm tube closed end,VI. the body having a first machined area,a. the first machined area being located at the neck tube bore open top end, and coaxial with the neck tube bore,b. the first machined area having a first shoulder,i. the first shoulder being perpendicular to the neck tube,ii. the first shoulder having a diameter greater than the neck tube bore diameter,c. the first machined area having a first collar,i. the first collar being perpendicular to the first shoulder,ii. the first collar being circumferentially disposed to the neck tube bore,d. the first machined area having a second shoulder,i. the second shoulder being parallel to the first shoulder and perpendicular to the first collar,ii. the second shoulder intersecting the first collar, and forming a 90 degree angle between the first collar and the second shoulder,iii. the second shoulder having a diameter greater than the first shoulder,e. the first machined area having a second collar,i. the second collar being perpendicular to the second shoulder,ii. the second collar being circumferentially disposed to the neck tube bore,VII. the body having a second machined area,a. the second machined area being located at the neck tube bore open bottom end, and coaxial with the neck tube bore,b. the second machined area having a third shoulder,i. the third shoulder being perpendicular to the neck tube,ii. the third shoulder having a diameter greater than the neck tube bore diameter,c. the second machined area having a third collar,i. the third collar being perpendicular to the third shoulder,ii. the third collar being circumferentially disposed to the neck tube bore;I. the means for reducing friction being sized to fit snugly into the first machined area,II. the means for reducing friction be sized to fit snugly into the second machined area,III. the means for reducing friction having a hole, the diameter of the hole being less than the diameter of the neck tube, and being sufficiently large to snugly accept the upper shaft;I. the retaining plate being sized to fit snugly into the first machined area,II. the retaining plate having a hole, the diameter of the hole being the same as the diameter of the neck tube,III. the retaining plate having a means for fastening to the rotor disc control plate,IV. the retaining plate having a retaining plate inner surface and a retaining plate outer surface;I. the slide rods having a proximal end and a distal end,II. the slide rods having a diameter sized for closely and slidably inserting into the arm tube bore,III. the distal end of the slide rods having a means for pivotal attachment to a means for pushing and pulling, the means for pushing and pulling being fastened to a helicopter body means;I. the upper shaft having length and diameter,a. the diameter of the shaft being less than the diameter of the neck tube bore,II. the upper shaft having a distal end for attachment to a helicopter rotor blade assembly,III. the upper shaft having a proximal end,IV. the upper shaft having a means for attachment to a means for translating rotational motion to rotational motion, the means for attachment being located at the proximal end,V. the upper shaft having a stop plate flange,a. the stop plate flange extending radially and circumferentially from the upper shaft, perpendicular to the first vertical axis,b. the stop plate flange having an inner surface and an outer surface, and a diameter greater than the neck tube bore diameter,c. the stop plate flange being disposed toward the proximal end of the shaft so that when the upper shaft is rotatably engaged through the neck tube, the means for attachment to the means for translating rotational motion to rotational motion is located at a locus where the longitudinal axis of the arm tubes intersect the first vertical axis,d. the diameter of the stop plate flange being less than the diameter of the second machined area, and greater than the neck tube diameter.
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