Portable electronic apparatus and detachable input device thereof

摘要

The present invention provides a detachable data input device for use with a portable electronic apparatus. The data input device such as a keyboard includes a connecting device, a housing, and an adjustment unit. The connecting device includes at least one projection and a first slot. The housing has a second slot and an angle is formed between the extending directions of the first slot and the second slot. The adjustment unit is movable between a first end and a second end of the second slot and is pivotally connected to the connecting device by passing through the first slot and the second slot. When the adjustment unit moves to the first end, the projection extends out of the housing by a first length. When the adjustment unit moves to the second end, the projection extends out of the housing by a second length. The first length is different from the second length.