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    • 86. 发明授权
    • Vinyl chloride resin composition
    • 氯乙烯树脂组合物
    • US5302650A
    • 1994-04-12
    • US999468
    • 1992-12-29
    • Toshio Ito
    • Toshio Ito
    • B32B27/30C08L27/06C08L67/00C08L67/02C09J127/06C08K5/12
    • C08L67/025B32B27/30C08L27/06C09J127/06C08L67/02
    • A vinyl chloride resin composition comprises: a mixture composed of 10 to 97 wt % vinyl chloride resin and 3 to 90 wt % thermoplastic polyester elastomer; and 10 to 200 parts by weight of a plasticizer with respect to 100 parts by weight of said mixture, the molecular weight of said plasticizer being 500 to 5000. This vinyl chloride resin composition can be easily melt bonded to polycarbonate resins which conventionally cannot be readily melt bonded. Therefore, the composition can be widely used in extrusion molding and injection molding. Furthermore, as a high molecular weight plasticizer is employed as the plasticizing agent, the problem of cracks can be overcome. In addition, since the necessity of using the adhesive agent in the manufacturing process can be eliminated, the overall cost can be significantly reduced.
    • 氯乙烯树脂组合物包括:由10至97重量%的氯乙烯树脂和3至90重量%的热塑性聚酯弹性体组成的混合物; 相对于100重量份所述混合物为10〜200重量份的增塑剂,所述增塑剂的分子量为500〜5000。该氯乙烯树脂组合物可以容易地熔融结合到常规不容易的聚碳酸酯树脂上 熔融粘合。 因此,该组合物可广泛用于挤出成型和注射成型。 此外,作为增塑剂使用高分子量增塑剂,可以克服裂缝的问题。 此外,由于可以消除在制造过程中使用粘合剂的必要性,因此总体成本可以显着降低。
    • 87. 发明授权
    • Indexing apparatus
    • 分度仪
    • US5064044A
    • 1991-11-12
    • US676805
    • 1991-03-28
    • Tetsuya OketaniToshio ItoYoshiaki Mase
    • Tetsuya OketaniToshio ItoYoshiaki Mase
    • B23Q16/02B23Q16/06F16H25/20
    • F16H25/2015B23Q16/026F16H25/2021F16H2025/2043F16H2025/2075F16H25/2204
    • An indexing apparatus for a rotary table has a support shaft rotatably supported by a base member in which indexed terminal positions of the rotary table is determined by abutment of a stopper member provided on the rotary table against positioning members provided on the base member. The indexing apparatus comprises a rack-pinion mechanism comprising a rack and a pinion fixed around the support shaft of the rotary table for rotating the same, a feed screw shaft rotatably supported by the base member and extending along the rack in a direction of the movement thereof, a breakable electric motor for driving the feed screw shaft, and a feed nut engaging the feed screw shaft. The rack and the feed nut are arranged so that either one of them has integral portions disposed at both sides of the other with spaces left on both the sides in the direction of the movement of the rack. Annular springs are disposed in each space. As the rotary indexing operation approaches the terminal position, the spring is elastically deformed in the direction of the movement of the rack so that shocks due to the abutting are prevented. Immediately before the indexed terminal positions, the speed of the motor is reduced and then the motor is braked.
    • 用于旋转台的分度装置具有支撑轴,该支撑轴可旋转地支撑在基部构件上,其中旋转台的分度端子位置通过设置在旋转台上的止动构件与设置在基座构件上的定位构件抵接而确定。 分度装置包括齿条 - 小齿轮机构,其包括齿条和围绕旋转台的支撑轴固定的小齿轮,用于使其旋转;进给螺杆轴,可旋转地由基部构件支撑并沿着运动方向沿齿条延伸 用于驱动进给螺杆轴的可破坏的电动马达和与进给螺杆轴接合的进给螺母。 齿条和进给螺母被布置成使得它们中的任一个具有设置在另一侧的整体部分,并且在机架的运动方向上留在两侧的空间。 环形弹簧设置在每个空间中。 当旋转分度操作接近终端位置时,弹簧沿着机架移动的方向弹性变形,从而防止由于邻接引起的冲击。 在指定的终端位置之前,马达的速度降低,然后马达被制动。