초록 ▼

A support structure flange preform resembles the Greek letter "pi" and has a base with two legs extending therefrom. The preform is composed of a composite material that is formed from tows of woven or braided fiber. The tows are oriented to extend throughout each the base and legs. The preform may

A support structure flange preform resembles the Greek letter "pi" and has a base with two legs extending therefrom. The preform is composed of a composite material that is formed from tows of woven or braided fiber. The tows are oriented to extend throughout each the base and legs. The preform may be either impregnated with a suitable thermoset resin, or may be unimpregnated so that resin may be infused at a later step of the overall manufacturing process. Two of the preforms are joined to a sine wave-shaped web of the structural beam. The web is formed from uncured, thermoset resin sheets that are reinforced with oriented fibers. The web has two outer laminates that sandwich a syntactic or foamed resin layer in between. The legs of each preform straddle one edge of the web and are shaped to both sides to the precise contours of the web. A laminate strip is positioned against the base of each preform to create a pair of flanges for the structural support member. The assembled structure is then heated and cured. The web and/or flanges of the structure also may be configured with alternating beads, tapered in either the vertical or horizontal direction, or inclined at non-orthogonal angles.

대표청구항 ▼

A support structure flange preform resembles the Greek letter "pi" and has a base with two legs extending therefrom. The preform is composed of a composite material that is formed from tows of woven or braided fiber. The tows are oriented to extend throughout each the base and legs. The preform may

A support structure flange preform resembles the Greek letter "pi" and has a base with two legs extending therefrom. The preform is composed of a composite material that is formed from tows of woven or braided fiber. The tows are oriented to extend throughout each the base and legs. The preform may be either impregnated with a suitable thermoset resin, or may be unimpregnated so that resin may be infused at a later step of the overall manufacturing process. Two of the preforms are joined to a sine wave-shaped web of the structural beam. The web is formed from uncured, thermoset resin sheets that are reinforced with oriented fibers. The web has two outer laminates that sandwich a syntactic or foamed resin layer in between. The legs of each preform straddle one edge of the web and are shaped to both sides to the precise contours of the web. A laminate strip is positioned against the base of each preform to create a pair of flanges for the structural support member. The assembled structure is then heated and cured. The web and/or flanges of the structure also may be configured with alternating beads, tapered in either the vertical or horizontal direction, or inclined at non-orthogonal angles. ontrolling said transporting motor on the basis of the corrected number of driving pulses stored in said storage unit. 2. A recording apparatus according to claim 1, wherein said transporting motor is a stepping motor. 3. A recording apparatus according to claim 1, wherein said transporting motor and said driving elements, including said transporting motor, includes a positioning device primarily determining a rotation position of said reference position detector of said transporting roller. 4. A recording apparatus according to claim 1, further comprising has an adjusting system which automatically performs a step of storing the number of driving pulses for a turn of said transporting roller, corrected so as to provide a constant quantity of transportation of said transporting roller on the basis of the information from said rotation angle measuring device. 5. A recording apparatus according to claim 1, wherein said recording means comprises an ink-jet recording head for forming an image by discharging ink. 6. A recording apparatus according to claim 5, wherein said ink-jet recording head records an image by means of ink liquid droplets formed by heat energy. 7. A recording apparatus for performing recording onto a recording medium by recording means, said apparatus comprising: transporting means for transporting the recording medium, said transporting means comprising a combination of driving elements including a transporting motor and a transporting roller, and set so that, upon completion of a turn of said transporting roller, the other driving elements are reset to an initial state; a detecting section, arranged on said transporting roller, showing a reference position of said transporting roller; a reference position detector detecting said detecting section and outputting a detection signal; a rotation angle measuring device, being detachably attached to said transporting roller, for measuring a rotation angle of said transporting roller; a surface height measuring device, being detachably attached to said transporting roller, for measuring a surface height of said transporting roller; a storage unit for previously storing a number of driving pulses for a turn of the transporting roller corrected so as to give a constant amount of transportation of said transporting roller, on the basis of information from said rotation angle measuring device and said surface height measuring device; and a controller driving-controlling said transporting motor on the basis of the corrected number of pulses stored in said storage unit. 8. A recording apparatus according to claim 7, wherein said transporting motor is a stepping motor. 9. A recording apparatus according to claim 7, wherein said driving elements, including said transporting motor and said transporting roller, include a positioning device primarily determining a rotating position of reference position detecting means of said transporting roller. 10. A recording apparatus according to claim 7, further comprising an adjusting system automatically performing a step of primarily storing in said storage unit the number of driving pulses for a turn of the transporting roller, corrected so as to provide a constant amount of transportation of said transporting roller, on the basis of the information from said rotation angle measuring device and said surface height measuring device. 11. A recording apparatus according to claim 7, wherein said recording means comprises an ink-jet recording head for forming an image by discharging ink. 12. A recording apparatus according to claim 11, wherein said ink-jet recording head records an image with ink liquid droplets formed by heat energy. 13. A recording apparatus for performing recording onto a recording medium by recording means, said apparatus comprising: transporting means for transporting the recording medium, said transporting means comprising a combination of driving elements including a transporting motor and a transp orting roller, set so that the other driving elements are reset to an initial state upon completion of a turn of said transporting roller; a detecting section, arranged on said transporting roller, showing a reference position of said transporting roller; a reference position detector detecting said detecting section and outputting a detection signal; a rotation angle measuring device attaching/detaching section, arranged on said transporting roller and being capable of attaching/detaching a rotation angle measuring device, measuring a rotation angle of said transporting roller; a storage unit previously storing the number of driving pulses for a turn of the transporting roller, corrected so as to provide a constant amount of transportation of said transporting roller, on the basis of information from the rotation angle measuring device; and a controller driving-controlling said transporting motor on the basis of the corrected number of driving pulses stored in said storage unit. 14. A recording apparatus according to claim 13, wherein said transporting motor is a stepping motor. 15. A recording apparatus according to claim 13, wherein said driving elements, including said transporting motor and said transporting roller, include a positioning device primarily determining a rotating position of reference position detector of said transporting roller. 16. A recording apparatus according to claim 13, further comprising an adjusting system automatically performing a step of previously storing in said storage unit a number of driving pulses for a turn of said transporting roller, corrected so as to provide a constant amount of transportation of said transporting roller, on the basis of the information from the rotation angle measuring device. 17. A recording apparatus according to claim 13, wherein said recording means comprises an ink-jet recording head for forming an image by discharging ink. 18. A recording apparatus according to claim 13, wherein said ink-jet recording head records an image by means of ink liquid droplets formed by heat energy. 19. A recording apparatus for performing recording onto a recording medium by recording means, said apparatus comprising: transporting means for transporting the recording medium, said transporting means comprising a combination of driving elements including a transporting motor and a transporting roller, and set so that the other driving elements are reset to an initial state upon completion of a turn of said transporting roller; a detecting section, arranged on said transporting roller, showing a reference position of said transporting roller; a reference position detector detecting said detecting section and outputting a detection signal; a rotation angle measuring device attaching/detaching section, arranged on said transporting roller and being capable of attaching/detaching a rotation angle measuring device, the rotation angle measuring device measuring a rotation angle of said transporting roller; a surface height measuring device attaching/detaching section, arranged on said transporting roller and being capable of attaching/detaching a surface height measuring device, the surface height measuring device measuring the surface height of said transporting roller; a storage unit previously storing a number of driving pulses for a turn of said transporting roller, corrected so as to provide a constant amount of transportation of said transporting roller, on the basis of information from the rotation angle measuring device and the surface height measuring device; and a controller driving-controlling said transporting motor on the basis of the corrected number of driving pulses stored in said storage unit. 20. A recording apparatus according to claim 19, wherein said transporting motor is a stepping motor. 21. A recording apparatus according to claim 19, wherein said driving elements, including said transporting motor and said transporting roller, include a positionin