Spring case and earpiece fixing method

Spring case and earpiece fixing method

  • CN 104,148,793 A
  • Filed: 08/19/2014
  • Published: 11/19/2014
  • Est. Priority Date: 08/19/2014
  • Status: Active Application
First Claim
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1. a fixing means for catapult box and earpiece, is characterized in that, this fixing means comprises the following steps:

  • A, shaping salient point (1a);

    catapult box (1) and/or earpiece (2) are carried out to mechanical process, at catapult box (1) and/or upper at least one salient point (1a) that is shaped of earpiece (2);

    B, location;

    catapult box (1) and earpiece (2) are fitted against location, the salient point (1a) on catapult box (1) and/or earpiece (2) is positioned between the two;

    C, welding;

    the positive pole of butt-welding machine and negative pole are resisted against respectively on the catapult box (1) and earpiece (2) behind location, start butt-welding machine by salient point (1a) thereby instant melting, cooling by fixing to slingshot shell (1) and earpiece (2).

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