Abstract: A continuous preform device for a composite stringer continuously preforms the composite stringer having three-dimensional curved surfaces in an efficient manner, the continuous preform device including a dispenser device 200 adapted to supply a prepreg laminate to a next process by sandwiching upper and lower faces of the prepreg laminate with carrier films, a section preform device 300 adapted to form the prepreg laminate sandwiched between the carrier films into a desired cross-sectional shape during passage, a press/puller device 400 adapted to apply a pressing process to the prepreg laminate and intermittently feed a composite downstream, and a curing mold forming device 500 adapted to preform the prepreg laminate into a desired stringer shape on a curing mold 20, which are placed in a straight line from upstream to downstream.

Abstract: A continuous preform device for a composite stringer continuously preforms the composite stringer having three-dimensional curved surfaces in an efficient manner, the continuous preform device including a dispenser device 200 adapted to supply a prepreg laminate to a next process by sandwiching upper and lower faces of the prepreg laminate with carrier films, a section preform device 300 adapted to form the prepreg laminate sandwiched between the carrier films into a desired cross-sectional shape during passage, a press/puller device 400 adapted to apply a pressing process to the prepreg laminate and intermittently feed a composite downstream, and a curing mold forming device 500 adapted to preform the prepreg laminate into a desired stringer shape on a curing mold 20, which are placed in a straight line from upstream to downstream.

Abstract: Provided is a system in which a camera monitors safety of a galley arranged in a cabin of an aircraft. A galley 100 includes a storage space 130 of carts divided by structural members 110, and carts 150 are stored. Turn retainers 200 in closed positions prevent the carts 150 from flying out. Hinged doors 310 are attached to front sides of compartments 300, and latches 320 lock the hinged doors 310. A monitoring camera 500 determines safety or unsafety of the turn retainers 200 and the latches 320 by an image and displays the safety or unsafety on a display device 600 or on a PDA terminal device 800 carried by a cabin attendant CA.

Abstract: Water leakage of a steam oven provided on an aircraft for heating ingredients is to be prevented. Two solenoid valves 6 and 7 are inserted in series in a water supply circuit of a steam oven. A power switch 12 supplies a 15 V direct current to the solenoid valves 6 and 7. A controller 1 transmits a command to driving circuits 4 and 5 of the solenoid valves according to a signal of a temperature sensor 10 in the oven. An output of a clock generator 14 is counted by a frequency counter and a time in which the valves are opened is counted. When count of a valve opening time becomes longer than a predetermined value, the power switch 12 of the solenoid valves is disconnected to prevent water leakage.

Abstract: A control system is provided that adopts a communication network using wireless visible light and IR light communications in a galley of an aircraft which is subjected to limitations of aviation regulations regarding wired communications. Insert equipments each having a visible light receiving element and an IR emitting element are disposed in a galley of an aircraft, and a galley controller is disposed within the galley or a circumference area thereof having a visible light emitting panel, an IR receiving element and a display/control panel for controlling the insert equipments. A mutual communication function between the galley controller and the insert equipments and a remote control function for controlling the insert equipments from the galley controller are realized via transmission and reception of visible light communication data and IR communication data.

Abstract: There is provided a space-saving and compact swing type door structure of an aircraft restroom, in which a door is automatically closed and which is easy to use for a passenger using the restroom. The swing type door (40) is slidably hung at its upper end edge (44) from a rail disposed at an upper portion of a door frame by a guide structure including a slide pin (46) and is turnably connected in a predetermined position different from the hung position to the door frame by a linkage (60). Swinging operation in opening the door (40) deforms a spring provided in an automatic closing device (50). When a hand is released from the door (40), the door (40) is constantly biased in a closing direction by spring resilience through the linkage (60) and automatically returns to a closed position. Therefore, the restroom becomes easy to use, an aisle in front of the restroom can be used in an emergency, and it is possible to avoid contingencies caused by false recognition of an escape hatch.

Abstract: The present invention provides a method for producing a mold made of a composite material by using a prepreg material. First, a material 200 of a mold having a long two-dimensional shape and in a semi-cured state is produced from a prepreg sheet by continuous pultrusion molding. Subsequently, the semi-cured material 200 is mounted on a plurality of templates 131, 132, 133, 134, and 135 vertically provided on a base plate 120 of a molding apparatus 100, and thereby plastically deformed into a three-dimensional shape. The entire molding apparatus 100 is heated and pressurized to produce a completely-cured mold.

Abstract: A sandwich panel includes a middle material (2) and a surface material (3) that are laminated with a hollow columnar core (1). The middle material (2) is composed of a set of unidirectional fiber bodies (4, 5) each of whose fibers are aligned in one direction, and bonding layers formed by woven fiber bodies (6, 7). The woven fiber body (7) includes a warp yarn and a woof yarn that is orthogonal to the warp yarn, and the yarns are woven, and the woven fiber body (7) is formed so that any one of the warp yarn and the woof yarn is substantially parallel to the edge of the sandwich panel, and the other of the warp yarn and the woof yarn is substantially orthogonal to the edge of the sandwich panel.

Abstract: The present invention provides a method for producing a mold made of a composite material by using a prepreg material. First, a material 200 of a mold having a long two-dimensional shape and in a semi-cured state is produced from a prepreg sheet by continuous pultrusion molding. Subsequently, the semi-cured material 200 is mounted on a plurality of templates 131, 132, 133, 134, and 135 vertically provided on a base plate 120 of a molding apparatus 100, and thereby plastically deformed into a three-dimensional shape. The entire molding apparatus 100 is heated and pressurized to produce a completely-cured mold.

Abstract: A current control circuit (active element) is provided that is connected between a rectifier of a DC power source and a smoothing capacitor in a power frequency converter and that controls a variation in the rectified current caused by a variation in the instantaneous power consumption of the load device. When the rectified current increases, the current control circuit limits the current to have a reference current value or lower and, when the rectified current decreases, the current control circuit increases the current to have a value close to the reference current to thereby suppress the rectified current from the rectifier to a substantially-constant value. This consequently mitigates the influence on the primary power source by the variation in the instantaneous power consumption of the load device, thus clearing the Load Demand Variation specification required for the power source to be used in an aircraft.

Abstract: There is provided a lightweight sandwich panel of exceptional utility, which satisfies the flexural strength and in-plane shear strength requirements for an inner wall material used in aircraft. The sandwich panel comprises a laminating material in which a plurality of fiber bodies is laminated, and a surface material, the laminating material and the surface material being laminated in the stated order from the inside to the outside on the upper and lower surfaces of a hollow columnar core. The laminating material comprises at least four unidirectional fiber bodies each of which has fibers aligned in a uniform direction and is laminated so that each of the fiber directions thereof is at approximately 0°, +45°, ?45°, and 90°, respectively, in relation to one edge of the sandwich panel. The unidirectional fiber bodies are stitched together using a stitching yarn.

Abstract: The invention provides a method for continuously forming a composite material shape member having a varied cross-sectional shape. A C-shaped movable mold 100 having a center portion 110 and both end portions 120 and 130 with a smaller surface dimension than the center portion is prepared, and prepreg sheets are laminated in advance to the both end portions 120 and 130 and the center portion 110, then these plies of prepreg sheets are denoted as the laminate 320, so that the whole body has a flat planar surface. Prepreg sheets 300 are drawn out from rolls 210 and 220 and passed through a preforming device 230 so that a C-shaped member 310 having a uniform cross-sectional shape is preformed. The movable mold 100 with pre-laminate 320 is superposed to the preformed member 310, which is passed through a hot press device, an after-cure furnace 260 where thermosetting of the member is completed, and then the movable mold 100 is removed to complete a formed product.

Abstract: The centrifugal fan for circulating a steam in the cook chamber of a steam oven is rotated in the reverse direction only for a certain time of a set cooking time, whereby a steam circulating flow generated in the cook chamber is changed, and consequently, the foods on the casseroles placed in the cook chamber are uniformly heated.

Abstract: To provide an aircraft use water heater that operates by an aircraft power source of an AC variable frequency mounted in an aircraft, that is small, light-weight, safe, and low power consumption, and that can supply warm water stably. In an aircraft use water heater composed of a tank section for heating liquid stored therein and a controlling section for controlling the heating of the liquid by an aircraft power source, a bottom face of the tank section has a baffle plate and, liquid flowing in the tank section collides against the baffle plate to flow in a different direction parallel to the bottom face and is upwardly moved, while being heated, in the vicinity of a helical coil-type heater and is taken out through a liquid outlet.

Abstract: The invention provides a mixing faucet system for an aircraft capable of minimizing as much as possible the size of the portion visible to the user, to thereby enhance the design flexibility of the wash basin and the lavatory including the wash basin. A mixing faucet system 1 for an aircraft comprises a discharge unit 2 of hot and cold water disposed on the wash basin in a lavatory of an aircraft, and a supply unit 3 separated from the discharge unit 2 and provided at a remote location from the wash basin for supplying to the discharge unit 2 through a hose 4 cold water and hot water either independently or in a mixed state. The discharge unit 2 is not equipped with a mixing function, and the supply unit 3 provided with the mixing function can be placed at a position remote from the discharge unit 2.

Abstract: Water leakage of a steam oven provided on an aircraft for heating ingredients is to be prevented. Two solenoid valves 6 and 7 are inserted in series in a water supply circuit of a steam oven. A power switch 12 supplies a 15 V direct current to the solenoid valves 6 and 7. A controller 1 transmits a command to driving circuits 4 and 5 of the solenoid valves according to a signal of a temperature sensor 10 in the oven. An output of a clock generator 14 is counted by a frequency counter and a time in which the valves are opened is counted. When count of a valve opening time becomes longer than a predetermined value, the power switch 12 of the solenoid valves is disconnected to prevent water leakage.

Abstract: The invention provides a visible light communication apparatus for in-flight entertainment system in an aircraft cabin in which a visible light communication (VLC) system is used for wireless communication of various contents data for in-flight entertainment. The invention provides a visible light communication apparatus for in-flight entertainment system in an aircraft cabin comprising an illuminating apparatus for illuminating the aircraft cabin via light emitted from an OLED element 20, and a visible light communication apparatus 19 for modulating a light quantity of light emitted from the OLED element 20 via electric signals to perform optical communication from an area distribution box 17 to a seat electronics box 18 by modulating the emission of the OLED element 20 so as to construct an in-flight entertainment system for offering information for service to passengers within the aircraft cabin.

Abstract: There is provided a continuous molding method capable of varying a thickness of a prepreg molded article. A molding material 10 is prepared such that three plies, for example, of prepreg 31, 32, 33 are laminated with different end face positions on each face of a prepreg laminate 20 of a carbon fibre or the like, and prepreg peel plies 41, 42, 43 are arranged continuously to the respective plies of the prepreg 31, 32, 33. This molding material 10 is transformed into a sheet and continuously sent out to a hot press for molding, which is then heated in a post-curing oven for a prescribed period of time for thermosetting. After the molding, the prepreg peel ply 40 is peeled and removed so that a product whose sectional thickness varies can be obtained.

Abstract: A sandwich panel that has excellent practicality as an inner wall material used in aircraft, for example, whereby the abovementioned requirements of flexural strength, peel strength, and in-plane shear strength can be satisfied while having reduced weight.

Abstract: The invention provides an illuminating device suitable for illuminating a cabin of an aircraft. An OLED illuminating panel 100 is arranged on a ceiling of the cabin of an aircraft in a direction parallel to an axis line of the fuselage to illuminate the interior of the cabin. Further, the OLED illuminating panel is arranged on an upper portion of the window panels in a direction parallel to the axis line of the fuselage to illuminate the interior of the cabin. A control system for controlling the illumination within the cabin includes a central control unit and OLED illuminating panels 100 disposed above window panels and divided into multiple zones within the cabin, which is connected to the central control unit via power/signal lines, wherein the central control unit has a function to change and control the color of the OLED illuminating panels 100 of the respective zones.