MANUFACTURING METHOD FOR RESIN RETAINER HAVING TWO ANNULAR SECTIONS

    公开(公告)号:EP4043178A1

    公开(公告)日:2022-08-17

    申请号:EP20874499.5

    申请日:2020-06-29

    IPC分类号: B29C45/33 F16C33/38 F16C33/46

    摘要: [Problem]
    Provided is a method of manufacturing a resin retainer having two annular sections, which can prevent each of the annular sections from being deformed in the radial direction.
    [Solution]
    A fixed-side cavity forming mold 6 has a first axial mold surface 6A that is in contact with an axial end surface of one of the annular sections of a resin retainer A having two annular sections, and a first protruding portion 11A protruding from the first axial mold surface 6A. A movable-side cavity forming mold 7 has a second axial mold surface 7A that is in contact with an axial end surface of the other one of the annular sections of the resin retainer A, and a second protruding portion 12A protruding from the second axial mold surface 7A. A slide core sliding step is performed in which slide cores 8 are slid toward an outer diameter and pocket-forming protruding portions of the slide cores 8 are extracted from a pocket of the retainer A, and then a mold opening step is performed in which the movable-side cavity forming mold 7 is opened relative to the fixed-side cavity forming mold 6.

    PROTECTIVE COVER HAVING SENSOR HOLDER PART, BEARING DEVICE EQUIPPED WITH SAID PROTECTIVE COVER, AND PRODUCTION METHOD FOR PROTECTIVE COVER HAVING SENSOR HOLDER PART

    公开(公告)号:EP3974148A1

    公开(公告)日:2022-03-30

    申请号:EP20809031.6

    申请日:2020-02-14

    发明人: JOGAN Yutaka

    摘要: [Problem]
    An object of the present invention is to prevent, in a protective cover having a sensor holder part and a separation wall between a magnetic encoder and a magnetic sensor, defectiveness due to burning or short shot from occurring on the separation wall, without lowering the non-defective rate of the protective cover.
    [Solution]
    The protective cover having a cup shape is mounted to an outer ring of a bearing so as to seal an inward-side end portion of the bearing. A protective cover 1 includes: a disc part 2 made of a synthetic resin; and a sensor holder part that is made of the synthetic resin and protrudes inward from the disc part 2. The disc part 1 is provided with a separation wall which separates the magnetic encoder and the magnetic sensor from each other. The separation wall 5 has a surface facing the magnetic encoder and a surface facing the magnetic sensor, and one of the surfaces has a mark M of a gas drainage pin of an injection molding die.

    ROTARY SEAL
    5.
    发明公开
    ROTARY SEAL 审中-公开

    公开(公告)号:EP3372874A1

    公开(公告)日:2018-09-12

    申请号:EP18159693.3

    申请日:2018-03-02

    摘要: There is provided a rotary seal having uneven surfaces formed on sliding contact surfaces of a slinger with which seal lip portions of a seal member come in contact, in which wear of the seal lip portions is reduced, resulting in increased reliability. The rotary seal (1) includes: a core metal (3); the seal member (4) having a base portion (4A) joined to the core metal (3) and the seal lip portions (4B, 4C, and 4D); and the slinger (2) having the sliding contact surfaces (A and B) with which the seal lip portions (4B, 4C, and 4D) come in contact, in which each of the sliding contact surfaces (A and B) is in such a surface condition that an arithmetic average roughness Ra satisfies 0.3 µm ≤ Ra ≤ 1.0 µm, a skewness of roughness curve Rsk satisfies Rsk ≤ -1, and an average length of roughness curve element RSm satisfies 100 µm ≤ RSm, Ra, Rsk, and RSm defined by JIS B 0601:2013.

    ANNULAR INSERT MOLDED ARTICLE AND MANUFACTURING METHOD THEREOF
    8.
    发明公开
    ANNULAR INSERT MOLDED ARTICLE AND MANUFACTURING METHOD THEREOF 有权
    RINGEINSATZ-FORMKÖRPERUND VERFAHREN ZU DESSEN HERSTELLUNG

    公开(公告)号:EP2952322A1

    公开(公告)日:2015-12-09

    申请号:EP15170420.2

    申请日:2015-06-03

    发明人: Fukuda, Osamu

    摘要: The present invention is intended to provide an annular insert molded article that suppresses contamination of a metal mold and generation of foreign matter without increase in material costs for an adhesive or contamination of a transfer jig, and has a high adhesion strength so that, when the annular insert molded article is attached to a rotating body, the adhesive does not peel off from the insert or remain as foreign matter in the rotating body, and a manufacturing method thereof.
    An annular insert molded article 1 is manufactured by injection molding in a state where a thermoset resin adhesive A is applied to a joining surface of an annular insert 2 attachable to a rotating body to an annular plastic 3 and then the annular insert 2 is placed in a metal mold, where an annular plastic 3 is injection molded, wherein the range of the adhesive A applied to the annular insert 2 is a range not going beyond boundaries B1 and B2 with the annular plastic 3 by more than 3 mm, and the range does not include a portion C of the annular insert 2 to be fitted with the rotating body.

    摘要翻译: 本发明旨在提供一种环形的嵌入成型制品,其抑制金属模具的污染和异物的产生,而不增加粘合剂的材料成本或转移夹具的污染,并且具有高粘合强度,使得当 环状嵌入成型品安装在旋转体上,粘合剂不会从插入物剥离或留在旋转体中的异物及其制造方法。 在将热固性树脂粘合剂A施加到环形插入件2的与旋转体相连接的环形插入件2的接合面到环状塑料3的状态下,通过注射成型制造环形插入成型品1,然后将环形插入件2放置在 金属模具,其中环形塑料3被注塑成型,其中施加到环形插入件2的粘合剂A的范围是不超过边界B1和B2的范围,环形塑料3超过3mm,范围 不包括环形插入件2的与旋转体配合的部分C.

    RUBBER COMPOSITION AND MOLDED RUBBER PRODUCTS
    10.
    发明公开
    RUBBER COMPOSITION AND MOLDED RUBBER PRODUCTS 有权
    KAUTSCHUKZUSAMMENSETZUNG UND GEFORMTE KAUTSCHUKPRODUKTE

    公开(公告)号:EP2581410A1

    公开(公告)日:2013-04-17

    申请号:EP10852865.4

    申请日:2010-06-08

    摘要: To provide a rubber composition capable of sufficiently abrading a sealing lip while sliding it in an initial stage of rotation and sufficiently reducing a running torque, and further capable of securing a sufficient sealing property. The composition includes a first compounding ingredient which is one or more kinds selected from the group consisting of calcium carbonate, magnesium oxide, aluminum oxide and barium sulfate in an amount of 50 to 200 parts by mass based on 100 parts by mass of a rubber component, and a second compounding ingredient which is one or two kinds selected from the group consisting of carbon black and a silica in an amount of more than 0 parts by mass and 50 parts by mass or lower.

    摘要翻译: 提供一种能够在旋转的初始阶段使密封唇充分研磨的橡胶组合物,并充分降低运行扭矩,并且还能够确保充分的密封性。 该组合物包含相对于100质量份的橡胶成分为50〜200质量份的选自碳酸钙,氧化镁,氧化铝和硫酸钡中的一种以上的第一配混成分 以及选自碳黑和二氧化硅中的一种或两种以上的量为0质量份以上且50质量份以下的第二配混成分。