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Vehicle door locking system with separate power operated inner door and outer door locking mechanisms

  • US 6,102,453 A
  • Filed: 02/04/1998
  • Issued: 08/15/2000
  • Est. Priority Date: 02/04/1997
  • Status: Expired due to Term
First Claim
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1. A power-operated vehicle door locking assembly comprising:

  • a housing assembly constructed and arranged to be mounted to a vehicle door,a door latching assembly carried by said housing assembly, said door latching assembly being constructed and arranged to be moved between a door latching position and a door unlatching position,said door latching assembly including a holding and releasing lever movable between (1) a holding position wherein said lever prevents said door latching assembly from moving from said door latching position thereof and (2) a releasing position wherein said lever permits said door latching assembly to move from said door latching position thereof to said unlatching position thereof,an outer door latch releasing mechanism including an outer releasing arm movably mounted and biased to engage with said lever,an outer reversible electric motor,an inner door latch releasing mechanism including an inner releasing arm movably mounted and biased to engage with said lever,an inner reversible electric motor, andseparate inner and outer door locking mechanisms,said outer door locking mechanism has an outer cam that moves between unlocked and locked positions so as to responsively move said outer releasing arm (1) into engagement with said lever to thereby enable said outer door latch releasing mechanism to responsively affect movement of said lever to said releasing position, and (2) out of engagement with said lever thereby disabling said outer door latch releasing mechanism, said outer reversible electric motor cooperating with said outer cam to effect said movement thereof in response to an outer manual electrical energizing actuation,said inner door locking mechanism has an inner cam that moves between unlocked and locked positions to responsively move said inner releasing arm (1) into engagement with said lever to thereby enable said inner door latch releasing mechanism to responsively affect movement of said lever to said releasing position, and (2) out of engagement with said lever thereby disabling said inner door latch releasing mechanism, said inner reversible electric motor cooperating with said inner cam to effect said movement thereof in response to an inner manual electrical energizing actuation,said outer door locking mechanism includes a first shaft on which said outer cam is fixed, an outer motion transmitting member constructed and arranged with respect to said housing assembly to be moved between unlocked and locked positions, an outer speed reduction gear train operatively connected between said outer electric motor and said outer motion transmitting member and an outer arm fixed to said first shaft and operatively connected to said outer motion transmitting member, said inner door locking mechanism includes a second shaft on which said inner cam is fixed, an inner motion transmitting member constructed and arranged with respect to said housing assembly to be moved between unlocked and locked positions, an inner speed reduction gear train operatively connected between said inner electric motor and said inner motion transmitting member, and an inner arm fixed to said second shaft and operatively connected to said inner motion transmitting member,said outer and inner speed reduction gear trains include outer and inner worm gears fixed to output shafts of said outer and inner electric motors, respectively, and outer and inner sector gears meshing with said outer and inner worm gears, the arrangement being such that motion imparted to said sector gears will move said worm gears and motors when said motors are without a source of electricity.

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