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    • 96. 发明申请
    • Method for producing upsized frp member
    • US20040130072A1
    • 2004-07-08
    • US10398147
    • 2003-04-02
    • Toshihide SekidoAkihiko KitanoEisuke WadaharaFumiaki Noma
    • G01B011/00B29C070/44
    • B29C70/48B29C70/443B29C70/547B29K2105/0845B29K2707/04B29L2031/3055B29L2031/3064B29L2031/3067B29L2031/3082B29L2031/3085
    • The present invention relates to a method for manufacturing a large FRP member and has the following structure. The method for manufacturing a large FRP member, comprising the following steps (A) to (F). They are: setting step (A) of disposing a preform containing a reinforcing fiber base material on a surface of a molding die; sealing step (B) of covering a molding portion with a bagging material or a mold and providing at least one suction port and at least one resin injection port for sealing; evacuating step (C) of evacuating the molding portion through the suction port; hot-air heating step (D) of heating the molding portion by hot air; resin injection step (E) of injecting a thermosetting resin from the resin injection port for impregnating the reinforcing fiber base material with the resin while a temperature Tm of the molding die and a temperature Tv of the bagging material or the mold are both set to room temperature or more, and a difference nullT in temperature between the Tm and the Tv is set to 10null C. or less; and curing step (F) of curing the resin by maintaining the molding portion at a predetermined temperature Tpc which is equal to or more than room temperature. Preferably, the preform described above includes the reinforcing fiber base material and a resin distribution medium. In addition, it is preferable that in the hot-air heating step (D), the molding die be placed in a sealed chamber which is heat insulated with a heat insulating material, the hot air be circulated and supplied, and timing of starting the injection of the resin from a plurality of the resin injection ports be controlled in accordance with signals supplied from resin detection sensors provided in the molding die. The present invention provides a method for manufacturing a large FRP member having superior quality at an inexpensive cost and with high production yield, in which non-impregnated portions and voids are unlikely to be formed.
    • 99. 发明授权
    • Rotational molding apparatus
    • 旋转成型设备
    • US5039297A
    • 1991-08-13
    • US406704
    • 1989-09-13
    • William E. Masters
    • William E. Masters
    • B29C41/06
    • B29C41/06B29L2031/3067Y10S425/238
    • Rotational molding apparatus for molding a kayak and the like in a mold (12). The apparatus includes an oven (A) having an oven chamber (40). A frame (B) pivotally supports oven (A) above a ground floor (10). Mold (12) rotates about a roll axis (123) on a carriage (C) while in oven chamber (40). Oven (A) pivots about a pivot axis (72) in counter-pivotal movement. Oven pivot axis (72) is spaced a distance "d" from roll axis (123) of mold (12). This causes a pendular motion to be imparted to the mold (12). Mold (12) thus swings to and fro in an arc as oven (A) pivots. Mold (12) rotates about its roll axis (123) at the same time. A well-controlled, even distribution of plastic material in the mold occurs by this combination of motions. A desired pattern of heat distribution is applied along the length of mold (12) by a series of hot air openings (50a-50d) and a like number of openings on an opposing side of a hot air plenum (49).
    • 用于在模具(12)中模制皮划艇等的旋转成型装置。 该装置包括具有烤箱室(40)的烤箱(A)。 框架(B)枢转地支撑在底层(10)上方的烤箱(A)。 模具(12)在烤箱室(40)中围绕托架(C)上的辊轴线(123)旋转。 烤箱(A)在枢转运动中绕枢轴(72)枢转。 烤箱摆动轴线(72)与模具(12)的辊轴线(123)间隔开距离“d”。 这就导致了向模具(12)施加摆动运动。 因此当炉(A)枢转时,模具(12)因此在电弧中来回摆动。 模具(12)同时围绕其辊轴线(123)旋转。 塑料材料在模具中的良好控制,均匀分布通过这种运动组合发生。 通过一系列热空气开口(50a-50d)和热空气增压室(49)的相对侧上的相同数量的开口沿模具(12)的长度施加期望的热分布图案。
    • 100. 发明授权
    • Seamless foldable boat
    • 无缝折叠船
    • US4706597A
    • 1987-11-17
    • US816224
    • 1986-01-06
    • Frank M. Figone
    • Frank M. Figone
    • B29C37/00B29C53/06B63B7/00
    • B63B7/00B29C53/06B29C37/0057B29L2024/006B29L2031/3067B29L2031/601B63B2007/003
    • A foldable boat is made with a seamless low stress hull that is formed from a one piece mold. The boat is assembled with membranes at the bow, stern and sides to seal the boat from water and to enable easy folding. The bow and stern membranes also serve to keep the sides from folding out. A hinged bottom and a hinged side-to-bottom section afford ease of folding and provide substantial resistance to bending after assembly of the boat. Bow and stern boards, side boards and seat boards provide rigidity, reduced slack and act as supports for the boat sections. The boat includes a railing that is locked to the sides and side boards so that migration of the side boards is prevented.
    • 可折叠的船由具有由单件模具形成的无缝低应力船体制成。 船在弓,船尾和侧面装有膜,以便将船从水中密封并使其易于折叠。 弓和船尾膜也用于防止侧面折叠。 铰链底部和铰接的侧对底部分易于折叠并且在组装船之后提供显着的抗弯曲性。 弓和船尾板,侧板和座椅板提供刚性,减少松弛,并作为船舶部分的支撑。 该船包括锁定在侧面和侧板上的栏杆,以防止侧板的移动。