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公开(公告)号：US5494718A
公开(公告)日：1996-02-27
申请号：US182896
申请日：1994-01-18
CPC分类号： A47K3/16 , Y10T428/1352 , Y10T428/1372
摘要： A shaped rigid thermoplastic cradle and leveler for vessels such as sanitaryware is disclosed. The cradle and leveler are separately formed or integrally shaped from a single thermoformed sheet of rigid thermoplastic material. The rigid thermoplastic material has a flexural modulus of at least about 300,000 psi to provide sufficient rigidity in the sidewall of the cradle. The leveler includes an integral floor leveling means for providing a designed pitch so as to conform to the desired pitch of the floor region of the vessel toward the drain hole. The floor region comprises a plurality of tapering, alternating upper and lower contacting regions. Between each adjacent upper contacting region is defined unsupported span regions having the shortest distance between adjacent upper contact regions of not more than 12 inches (30.5 cm). Preferably the shortest distance between adjacent upper contact regions defining the unsupported span is from 2.5 inches to about 6 inches. A variety of rigid thermoplastic materials are adaptable herewith and include acrylonitrile-butadiene- styrene copolymers, styrene-acrylonitrile copolymer, acrylonitrile-styrene-methacrylate copolymers, polystyrene, styrene-alpha methyl styrene copolymers, polyethylene, polypropylene, polycarbonate, and polyvinyl chloride. The most preferred embodiment comprises rigid fiber reinforced polyvinyl chloride.
摘要翻译： 公开了用于诸如卫生洁具的容器的成形刚性热塑性托架和矫直机。 摇篮和矫直机由单一热成型的刚性热塑性材料片单独形成或整体成型。 刚性热塑性材料具有至少约300,000psi的弯曲模量，以在支架的侧壁中提供足够的刚性。 整平器包括整体地板平整装置，用于提供设计的间距以便符合容器的地板区域对排水孔的期望间距。 地板区域包括多个渐缩的，交替的上部和下部接触区域。 在每个相邻的上部接触区域之间是限定了不超过12英寸（30.5cm）的相邻上部接触区域之间具有最短距离的非支撑跨距区域。 优选地，限定非支撑跨度的相邻上接触区域之间的最短距离为2.5英寸至约6英寸。 各种刚性热塑性材料适用于此，包括丙烯腈 - 丁二烯 - 苯乙烯共聚物，苯乙烯 - 丙烯腈共聚物，丙烯腈 - 苯乙烯 - 甲基丙烯酸酯共聚物，聚苯乙烯，苯乙烯-α甲基苯乙烯共聚物，聚乙烯，聚丙烯，聚碳酸酯和聚氯乙烯。 最优选的实施方案包括刚性纤维增强聚氯乙烯。
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