Detent mechanism for shift lever unit

A detent mechanism for a dual mode shift lever unit having a shift lever inserted into a housing through a guide groove formed on an indicator panel at an upper part of the housing, and a cable bracket pivotally supported by the housing and connected to a transmission manual valve which is responsively operated by shift lever manipulation, wherein the detent mechanism comprises,

• a bracket fixedly connected to a lower end of the shift lever and pivotally connected to a rotational member which is rotationally mounted on the pivot shaft supported by the shift lever housing,
• a detent block pivotally coupled to the rotational member, and
• a turnover spring installed on one open side of the bracket for contacting the detent block;
• and
• wherein the turnover spring is a double torsion spring having offset ends that are connected to and are in between the arms of the bracket, and a flat portion formed between two coiled portions, wherein the flat portion is contacted by the detent block.