Abstract: The invention provides an improved method for forming a composite material mainly composed of carbon fiber. It is difficult to form an H-shaped structural member formed of a prepreg material having carbon fiber fabric impregnated with epoxy resin into a member having curvature. Thus, the structural member is divided into two bendable constructional elements 110 and 120, which are bent to given curvature then adhesively-bonded to form a structural member having curvature.

Abstract: The invention provides an improved method for forming a composite material mainly composed of carbon fiber. It is difficult to form an H-shaped structural member formed of a prepreg material having carbon fiber fabric impregnated with epoxy resin into a member having curvature. Thus, the structural member is divided into two bendable constructional elements 110 and 120, which are bent to given curvature then adhesively-bonded to form a structural member having curvature.

Abstract: The present invention is directed to cost-effectively provide a high-strength large vacuum heat-insulating panel with a honeycomb core of non-permeable independent cells by means of simplified instruments and method. One goal of the invention is that the core retains an original shape at its lateral ends from the beginning of a procedure of evacuating air into a vacuum condition till the end of panel bonding, and another is ensuring a long lasting air-tight sealing in the honeycomb core. The vacuum heat-insulating panel 100 according to the invention includes a vacuum core element (50) of non-permeable honeycomb structure and a surface element (60) bonded thereto by fusing an air-permeable bonding element (woven cloth made of fibrous adhesive of thermoplastic resin or unwoven cloth of the fibrous adhesive) 70. The surface element 60 has its edges bent to provide protection covers 65.

Abstract: A ceiling panel speaker 100 comprises ceiling panel vibrating plates 110 and exciter units 200 mounted on said vibrating plates 110, each exciter unit 200 connected via line 270 to an amplifier not shown. The ceiling panel vibrating plates 110 are aligned to form a longitudinal size L1 extending above one or more aisles within the cabin, so that the ceiling panel speaker 100 realizes a long surface sound source. The sound waves output from the ceiling panel speaker 100 are transmitted along inner wall panels 12 etc. and spread throughout the closed space of the passenger cabin 50.

Abstract: A plasma display device including a back surface glass plate equipped with discharge electrodes and having electronics connected to the back surface thereof, a front surface glass plate mounted on and opposing to the back surface glass plate via separation walls and having discharge electrodes, and luminescent pixels defined by the back surface glass plate the separation wall and the front surface glass plate. The back surface glass plate of the luminescent pixel opposite the display surface is formed as a reflection surface, and a fluorescent layer is formed on said reflection surface.

Abstract: The present invention provides a vacuum heat-insulating block including a honeycomb core, wherein the block structure prevents the honeycomb core having a low bulk specific gravity from collapsing by atmospheric pressure, the block attaining flexibility and sound absorption property. The vacuum heat-insulating block 100 according to the present invention is basically composed of a core utilizing a plurality of layered honeycomb members 50 (formed by bonding a honeycomb core member 51 to a support plate 55) and covering the core with a cover member 70. Moreover, a woven or non-woven fabric 60 having air permeability is disposed between the layers of honeycomb core members 51.

Abstract: In a plasma display device, a reinforcement member 15 constituted of a sandwich panel (laminated panel) formed by sandwiching a honeycomb core 151 made of aluminum alloy with aluminum alloy plates 153 is mounted on the back surface of a display module 10. The reinforcement member 15 is light in weight, satisfies the abuse load requirements, and is equipped with supporting members 17 having cooling fins 171 mounted to the interior of said members 17 and providing heat diffusing function to the supporting members.

Abstract: A ceiling panel speaker 100 comprises ceiling panel vibrating plates 110 and exciter units 200 mounted on said vibrating plates 110, each exciter unit 200 connected via line 270 to an amplifier not shown. The ceiling panel vibrating plates 110 are aligned to form a longitudinal size L1 extending above one or more aisles within the cabin, so that the ceiling panel speaker 100 realizes a long surface sound source. The sound waves output from the ceiling panel speaker 100 are transmitted along inner wall panels 12 etc. and spread throughout the closed space of the passenger cabin 50.

Abstract: A method for forming a compound material by intermittently heating and pressurizing a composite material reinforced by fibers. The method is made up of a pinching step of pinching and fixing the upstream end and the downstream end of the composite material; a heating/pressurizing step of heating and pressurizing the pinched and fixed composite material intermittently; and a moving step of releasing the compound material and sending the material to the downstream direction after termination of the heating/pressurizing step; during the pinching step, tension toward the downstream advancing direction is provided to the downstream end of the composite material, and during the moving step, the amount of movement of the compound material at the downstream side is set to be greater than the amount of movement of the compound material at the upstream side, thereby straightening the fibers in the compound material linearly.

Abstract: The present invention provides a vacuum heat-insulating block including a honeycomb core, wherein the block structure prevents the honeycomb core having a low bulk specific gravity from collapsing by atmospheric pressure, the block attaining flexibility and sound absorption property. The vacuum heat-insulating block 100 according to the present invention is basically composed of a core utilizing a plurality of layered honeycomb members 50 (formed by bonding a honeycomb core member 51 to a support plate 55) and covering the core with a cover member 70. Moreover, a woven or non-woven fabric 60 having air permeability is disposed between the layers of honeycomb core members 51.

Abstract: The present invention is directed to cost-effectively provide a high-strength large vacuum heat-insulating panel with a honeycomb core of non-permeable independent cells by means of simplified instruments and method. One goal of the invention is that the core retains an original shape at its lateral ends from the beginning of a procedure of evacuating air into a vacuum condition till the end of panel bonding, and another is ensuring a long lasting air-tight sealing in the honeycomb core. The vacuum heat-insulating panel 100 according to the invention includes a vacuum core element (50) of non-permeable honeycomb structure and a surface element (60) bonded thereto by fusing an air-permeable bonding element (woven cloth made of fibrous adhesive of thermoplastic resin or unwoven cloth of the fibrous adhesive) 70. The surface element 60 has its edges bent to provide protection covers 65.

Abstract: A rotating brush including a hollow cylindrical rotor having through holes in its peripheral wall and bristles on its peripheral surface is provided in a nozzle of an upright electric vacuum cleaner. A reflux passage connecting a fan chamber in the cleaner body and an end of the rotor is provided so that a slip stream of an electric fan for producing a suction stream jets out into the nozzle from the rotor through the holes. A fan for sucking air outside the nozzle is provided at the other end of the rotor so that the sucked air also jets out into the nozzle through the holes. In another electric vacuum cleaner, the rotor of the rotating brush is not provided with through holes but the slip stream of the electric fan is caused to blow the peripheral surface of the rotating brush from its end.

Abstract: In a window structure equipped on the side walls of a cabin in the body of an airplane, a transparent board is mounted on the outer portion for sealing the pressure inside the cabin. A dust cover is mounted in the inner side of the transparent board sealing the pressure, and a shade 80 which is able to take an up and down movement is mounted on the cabin side of the dust cover for blocking outer incident light. The dust cover comprises of a transparent resin board and a non-elastic film stuck on the surface of the transparent resin board facing the shade. The acrylic resin used as the material of the transparent resin board expands by absorbing the water in the air, but by the operation of the non-elastic film, the dust cover bends toward the outer direction F of the body, and will not interfere with the locus L.sub.1 of the up and down movement of the shade.

Abstract: The present invention offers a picture projecting device which projects a clear picture even in a bright environment by cutting out the influence of outer light, regardless of the kind of projector used.On the surface of a screen 20 inside an airplane, a first polarizing film 22 is put on. Further, a second polarizing film 32 is put on the input portion of outer incident light such as window glasses 9 or cover 8 of the room light. The second polarizing film 32 has the same polarizing trait as that of the first polarizing film 22, but they are placed so that the plane of polarization of the second polarizing film 32 differs from that of the first polarizing film 22 by 90.degree.. The outer incident light H passing through the second polarizing film 32 enters the screen 20 as a polarized transmission light h1. The light will be reduced completely by the first polarizing film 22 placed on the screen and will not reflect.

Abstract: A storage section for storing a video monitoring equipment for an airliner and the video monitoring equipment which moves to a visible position are connected by two long cylindrical springs. One of the springs is urged in the direction of the storage section of the airframe. The other spring is made of a shape-memory alloy on which a specific shape is memorized in heated condition. When the second spring is heated and takes the specific shape, the video monitoring equipment is moved to the visible position together with the move of the second spring going against the urging force of the first spring. When the heating of the second spring is stopped, the video monitoring equipment is moved to the storage section along with the movement of the first spring by the urging force of the first spring.

Abstract: A method for heating and press-forming a plied material sheet prepared by impregnating a thermosetting resin into sheets of parallely disposed plastic fiber or into sheets of woven fabric of plastic fiber. The material sheet is formed into an operation which repeats the steps of heating and press-forming such material sheet within a shaping mold on a heating and press-forming apparatus for a predetermined time period and then releasing the pressure for a predetermined time period while step-feeding the material sheet over a predetermined distance for a time period less than the time period of such released pressure.

Abstract: A method for continuously molding a honeycomb panel having a sandwich structure wherein a plastic composite is bonded to both surfaces of a honeycomb-shaped core member. A long honeycomb sandwich panel is formed by repeating the following steps:(1) laminating a prepreg to the upper and lower surfaces of a band-like honeycomb core member to form a band-like blank;(2) feeding the band-like blank between a pair of upper and lower hot plates having a rectangular plane shape;(3) pressurizing the hot plates to apply pressure and heat to part of the band-like blank for a preset time; and(4) relieving the pressure exerted in the hot plates and feeding the band-like blank by a distance corresponding to a partial length of the hot plates.

Abstract: A coupling comprising a tube made of plastic composite material to be used as a structural member and having an end portion formed with a plurality of acute cutouts, a fitting having a small-diameter front end portion and a bell-shaped tapering rear portion, and a bell-shaped sleeve having an inner wall surface of a shape corresponding to that of the tapering portion of the fitting. The end portion of the plastic tube is held between the fitting inserted into the end portion and the sleeve mounted on the outer periphery of the taper fitting, and a nut threadedly engaged with external threads of the fitting is tightened to assemble the fitting, the plastic tube and the sleeve as a unit.

Abstract: According to the present invention, there is provided a vacuum cleaner which comprises a dust collector detachably installed in a main body of the cleaner. A primary filter composed of a horizontal wall and a vertical wall is disposed within the dust collector. Both the horizontal and vertical walls are permeable to air and include a dust filter. A secondary filter is disposed behind the vertical wall of the primary filter. A first path for dust is defined btween the horizontal wall of the primary filter and the bottom of the body and merged into a second path developed between the vertical wall of the primary filter and the second filter. Preferably, the horizontal and vertical walls of the primary filter include a coarse mesh for trapping relatively large dust and the secondary filter includes a fine mesh for trapping relatively small dust which has passed through the primary filter.

Abstract: Rolling and swiveling movements of a caster are simultaneously braked by a movable brake member which extends between the forked legs of the caster and has one end downwardly movable into frictional contact with the tread surface of the caster wheel and another end downwardly movable into frictional contact with an upwardly-facing annular surface on the non-swiveling base of the caster. The brake member is moved to its braking position by a lever-actuated pin concentric with the swivel axis.