| 摘要 |
<p>The present invention relates to a crane structure which suites many kinds of crane operations an which is based on a digger or the like basic construction machine. A lower body (3) of the machine which has a turnable upper carriage (4) is heightened by a modular body heightening portion (8) which is located between parts (1, 2) of the original lower body (3). The present invention also relates to a method for modifying a crane structure which is based on a basic construction machine. The lower body (3) of said basic machine known perse, which machine originally has been implemented to be essentially unitary, is divided into at least two main portions (1, 2) between which intermediate pieces (8, 11, 11a) are arranged in a number which is necessary for the respective height requirement for the construction machine.</p> |
