Ignition lock with dual unlocking modes

A motor vehicle ignition lock comprising:

• a housing adapted for rigid support on said motor vehicle,
• a lock barrel adapted for connection to an ignition switch of said motor vehicle and supported on said housing for rotation about a first axis between an OFF/LOCK position corresponding to said ignition switch being off and an ON position corresponding to said ignition switch being on,
• a mechanical lock means on said lock barrel including a key slot nad a side bar having an extended position defining a raial abutment on said lock barrel and shiftable upon insertion of a key into said key slot from said extended position to a retracted position inside said lock barrel,
• an electronic lock means on said hosing including an electric solenoid having aplunger aligned on and bodily shiftable in the direction of a second axis parallel to said first axis between an extended position when said electric solenoid is turned off and a retracted position when said electric solenoid is turned on,
• a slide,
• means mounting said slide on said housing with an edge of said slide juxtaposed said lock barrel and for boidly shiftable movement in a direction parallel to eachof said first and said second axes between a locking position and an unlocking position,
• means defining a notch in said ege of said slide receiving said side bar in said extended position of said side bar and in said locking position of said slide to prevent rotation of said lock barrel and being remote from said side bar in said extended position of said side bar and said unlocking position of said sldie to release said lock barrel for rotatin from said OFF/LOCK position to said ON position, and
• means connecting said slide to said solenoid plunger so that said plunger moves said slide between said locking and unlocking positions concurrently with movement of said plungr between said extending and said retracted positions.