Securing handle for an openable side window

A motor vehicle comprising an openable side window which covers a lateral vehicle opening when in its closed position and can be locked by means of a securing device, the securing device comprising a pivotable securing handle which can be pivoted between an unlocked position and a locked position and has an operating arm and a latch arm which, when in the locked position, interacts with a latch counterpart, wherein the latch arm comprises a functional element which is pre-loaded radially outward with respect to a pivot axis of the securing handle;

• wherein the latch counterpart comprises a sliding plate having a slide portion on which the functional element of the latch arm slides when the securing handle is being pivoted into the locked position;
• wherein the slide portion forms a latch seat in which the functional element is disposed when in the locked position;
• wherein the slide portion has two ramp sections which are inclined in opposite directions and which transition into each other and one of which limits the latch seat;
• wherein the sliding plate has a side wall on which a lateral contact surface of the latch arm of the securing handle slides when the securing handle is being pivoted into the locked position.