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Automatic door opening mechanism for ejecting cassette tape of video cassette recorder

  • US 5,898,536 A
  • Filed: 12/29/1997
  • Issued: 04/27/1999
  • Est. Priority Date: 02/28/1997
  • Status: Expired due to Fees
First Claim
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1. An automatic door opening mechanism for ejecting a video cassette tape of a video cassette recorder (VCR) comprising:

  • a door mounted at both sides on door brackets in front of a cassette deck opening for inserting/ejecting a cassette tape so that said door opens upwardly, said brackets being rotatably mounted on both sides of a bracket hinge shaft and each of said brackets having a hook pin formed in the middle of an outer side thereof;

    an actuator lever fixed on one end of an actuator shaft rotatably mounted on a main frame, said actuator lever having a first door locking part formed on one end apart from said actuator shaft and a button pressing part formed on the other end apart from said actuator shaft, whereby said first door locking part is caught and locked by said hook pin provided on one of said door brackets;

    a second door locking part fixed on the other end of said actuator shaft, whereby said second door locking part is caught and locked by said hook pin provided on the other of said door brackets; and

    a retention arm fixed on said actuator shaft in the middle thereof, said arm having a stopper tiltably mounted on the top thereof, wherein said stopper is vertically positioned under said cassette deck opening so as to be engaged with front and rear lower edges of said cassette tape and to be tilted inwardly by being engaged with said rear lower edge of said cassette tape when inserting said cassette tape through said opening, said stopper being returned to its vertical position after complete insertion of said cassette tape, and said cassette tape pushes said stopper outwardly when being ejected, so as to rotate said actuator shaft together with said actuator lever, thereby releasing said hook pins of said door brackets from hooks of said door locking parts, so that said door brackets are rotated upwardly and said door is automatically opened.

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