• 专利附录
  • 专利说明
  • 权利要求
  • 类似技术
  • 同族专利
  • 引用文献
  • 法律状态
  • 优先权
    • 专利摘要:
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timing belt cover and a method of manufacturing the same, and more particularly, after a timing belt cover is formed of a polypropylene resin containing an inorganic filler such as talc, the molded article is used as a core. By inserting a polypropylene resin, which is the basic resin of the timing belt cover, into the gasket groove by inserting it into another mold, a gasket bonded to the cover can be manufactured at the same time as the molding, so that the regeneration thereof is easy as well as the number of parts The present invention relates to a more economic timing belt cover and a method of manufacturing the same.
    公开号:KR19990056685A
    申请号:KR1019970076695
    申请日:1997-12-29
    公开日:1999-07-15
    发明作者:황의훈
    申请人:정몽규；현대자동차 주식회사；
    IPC主号:
    专利说明:

    Timing belt cover and manufacturing method thereof
    BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a timing belt cover and a method of manufacturing the same, and more particularly, after a timing belt cover is formed of a polypropylene resin containing an inorganic filler such as talc, the molded article is used as a core. By inserting a polypropylene resin, which is the basic resin of the timing belt cover, into the gasket groove by inserting it into another mold, a gasket bonded to the cover can be manufactured at the same time as the molding, so that the regeneration thereof is easy as well as the number of parts The present invention relates to a more economic timing belt cover and a method of manufacturing the same.
    The timing belt cover is a part connecting the engine's crankshaft and the camshaft, which is mainly injection molded separately from the plastic cover and five or more rubber gaskets, and then attached to each other using an adhesive.
    Therefore, the manufacturing method of the timing belt cover, which has been used in the past, has three or more kinds of compounds such as plastic, rubber, and adhesive, so that there is a problem of separating them separately during their recycling. Due to the different materials, the number of assembling labor such as forming and adhering to each other is disadvantageous.
    The present invention, in order to solve the problems in the conventional timing belt cover manufacturing as described above, after forming the timing belt cover with a polypropylene resin containing an inorganic filler, the gasket groove seat with the molded product as a core in another mold By manufacturing a timing belt cover by foam molding using polypropylene resin, which is the same material as the cover, the manufacturing process is shortened, and the timing belt which can reduce cost by high adhesive effect and easy regeneration by using the same material. Its purpose is to provide a cover and a method of manufacturing the same.
    The present invention provides a method of manufacturing a timing belt cover, comprising: molding a cover from a polypropylene resin containing an inorganic filler; A timing belt cover for inserting the molded article into another mold and foaming the polypropylene resin in the gasket groove, and a manufacturing method thereof.
    The present invention will be described in more detail as follows.
    According to the present invention, the timing belt cover and the gasket having the same material and manufactured according to a separate manufacturing process are bonded to the same material and simplified in the manufacturing process, thereby reducing the cost and easily reproducing the timing belt cover and its It relates to a manufacturing method.
    First, in manufacturing the timing belt cover, the parts other than the gasket are molded under conventionally known conditions in a separate mold using a resin containing an inorganic filler to improve physical properties of the polypropylene resin. At this time, the inorganic filler added to improve the properties such as strength and noise reduction effect may be used at least one selected from talc, ZnO and BaSO 4 , the content is 20 to 40% by weight of the total content of the cover It is preferable. If the content of the inorganic filler in the polypropylene resin to be used is less than 20% by weight, the noise reduction effect is lowered, if it exceeds 40% by weight there is a problem that the mechanical properties are poor.
    In the next step, the present invention inserts the timing belt cover molded article manufactured above into another mold. Then, by foaming and molding the polypropylene made of the same material as the cover in the gasket groove in the mold, the cover and the gasket is bonded to the gasket portion at the same time to complete the present invention.
    At this time, the molding of the tie belt cover using the polypropylene as described above is carried out under conditions already known to those skilled in the art.
    When the timing belt cover is manufactured according to the present invention, not only the manufacturing process can be shortened, but also the number of parts can be reduced, and the cost can be reduced. The manufacturing process using the resin of the same series can reduce the separation process during regeneration. It has an economic effect.
    权利要求:
    Claims (2)
    [1" claim-type="Currently amended] A method of manufacturing a timing belt cover, comprising: forming a cover from a polypropylene resin containing an inorganic filler; And inserting the molded article into another mold to foam the polypropylene resin into the gasket groove.
    [2" claim-type="Currently amended] The timing belt cover, which is prepared by the method of claim 1, which contains 20 to 40% by weight of at least one inorganic filler selected from talc, ZnO and BaSO 4 in the total cover content.
    类似技术:
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    同族专利:
    公开号 | 公开日
    引用文献:
    公开号 | 申请日 | 公开日 | 申请人 | 专利标题
    法律状态:
    1997-12-29|Application filed by 정몽규, 현대자동차 주식회사
    1997-12-29|Priority to KR1019970076695A
    1997-12-29|Priority claimed from KR1019970076695A
    1999-07-15|Publication of KR19990056685A
    2001-09-22|Application granted
    2001-09-22|Publication of KR100285054B1
    优先权:
    申请号 | 申请日 | 专利标题
    KR1019970076695A|KR100285054B1|1997-12-29|Timing belt cover and manufacturing method thereof|
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