Key interlock system of vehicle equipped with automatic transmission
AssigneesKia Motors Corporation, Hyundai Motor Company
InventorWonjin Jeong
Life of this patent
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Abstract
A key interlock system of a vehicle equipped with an automatic transmission satisfies a condition of a key interlock system that allows a shift lever 3 inserted in a P-range groove (Parking) 2a to be shifted to other ranges (R-range, N-range, and D-range) only by turning a key inserted in a key hole of an ignition lock cylinder 42 to ‘ON’, and a condition of a key interlock system that allows the key to be removed from the key hole of ignition lock cylinder 42 only when shift lever 3 is positioned at P-range (Parking) 2a, by using a mechanical structure. Therefore, it is possible to achieve a key interlock system that can be manufactured at a low cost, does not make noise, and does not easily break down, as compared with electronic devices.
Claims8
A key interlock system of a vehicle equipped with an automatic transmission, comprising:
- a key interlock cam that is rotatably mounted to a shift lever housing and elastically biased in one direction by an elastic member, one end of the key interlock cam being connected to one end of a key interlock cable;
- a locking plate slidably disposed in the shift lever housing, the locking plate having a slot member to which the other end of the key interlock cam is slidably inserted and a lever groove to which a shift lever is removably inserted;
- a cable block slidably coupled to an ignition lock body and being movable along a longitudinal direction thereof, wherein the cable block is connected with the one end of the key interlock cam by the key interlock cable, and has a locking protrusion protruding inside the ignition lock body;
- and
- a cylinder block that is integrally formed with an ignition lock cylinder rotatably coupled to the ignition lock body therein and includes a guide channel to selectively receive the locking protrusion therein so as to restrain linear motion of the cable block or rotation of the ignition lock cylinder by retaining the locking protrusion therein while rotating with the ignition lock cylinder.
Dependencies are inferred from the claim text.