In-line solenoid transmission interlock device

Details In-line solenoid transmission interlock device In-line solenoid transmission interlock device

1989-11-17

1991-01-29

Marmor, Charles A.

Motor vehicles

With means for promoting safety of vehicle, its occupant or...

Responsive to absence or inattention of operator, or...

70245, 70248, 70251, 70257, 745024, 745025, 74526, 180271, 192 4A, 192 9, B60D 128

Patent

active

049879685

ABSTRACT:
A transmission shift interlock device which prevents a motor vehicle operator from shifting the automatic transmission shift lever out of the park or neutral position unless some action such as the brake pedal being depressed is taken. The device provides interlock capability by locking the transmission shift cable. An in-line solenoid is provided within the shifter cable having a movable armature which, when energized, forces locking balls or other engagement features into interlocking engagement with the cable core or rod member attached thereto. An alternate embodiment provides an adjustment link for accommodating vehicle tolerance variations and further provides means for having interlock capabilities at more than one shifter position.

REFERENCES:
patent: 2156387 (1939-05-01), Goldfinger
patent: 2871718 (1959-02-01), Schroeder
patent: 2949989 (1960-08-01), Lindstrom et al.
patent: 3617081 (1971-11-01), Drucker
patent: 4278154 (1981-07-01), Cymbal et al.
patent: 4683774 (1987-08-01), Memmola
patent: 4694706 (1987-09-01), Lichtenberg et al.
patent: 4821605 (1989-04-01), Martus

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