本发明涉及与锁壳体上的挂锁（1，2）和一个U形锁钩环（3），其特征在于，具有支承端锁钩环的U形腿（4）和锁定端（5），其中，所述轴承端部（4）可动 尤其可旋转地在一个轴承孔（6）的锁壳体（1）的插入和锁定端部（5）与锁定开口（7），用于锁定端的插入中的一个（5）与所述闩锁部件（8）关联的锁壳体以这样的方式相配合（2），在 一个锁定位置中，所述锁定部件（8）进入锁定凹口（9）的锁紧端（5）接合，两个钩环的端部（4,5）的锁壳体（1，2）是固定的，并在释放位置中，所述锁定构件 （8）不接合在锁定凹部（9）中时，锁定壳体（2）的锁定端部（5）是可释放的。 对于一个挂锁的最终技术培训，所以建议在锁壳体的从两个锁钩环的U形腿的延伸的方向上的外壁（1”，2' ）的外壁（3）是相互可移动的壳体部分（1,2）形成，其中，第一 壳体部件（1）具有其中轴向端部（4）轴向地卡在其中的轴承开口（6）以及形成锁定开口（7）的第二壳体部件（2）。

The invention relates to a padlock with a lock housing (1, 2) and a U-shaped lock shackle (3), wherein the U-leg of the lock shackle having a bearing end (4) and a locking end (5), wherein the bearing end (4) movable , in particular rotatably in a bearing opening (6) of the lock housing (1) inserted and the locking end (5) with one of a locking opening (7) for insertion of the locking end (5) associated with the latch member (8) cooperates in such a manner in the lock housing (2) that in a locking position in which the locking member (8) into a locking recess (9) of the locking end (5) engages, both shackle ends (4, 5) on the lock housing (1, 2) are fixed, and in a release position in which the locking member (8) does not engage in the locking recess (9), the locking end (5) from the lock housing (2) is detachable. For eventual technical training of a padlock, it is proposed that the outer wall of the lock housing from the outer wall (1 ', 2') of two in the direction of extension of the U-leg of the lock shackle (3) are mutually displaceable housing parts (1, 2) is formed, wherein a first comprises housing part (1) the bearing opening (6), in which the bearing end (4) inserted axially, and a second housing part (2) forming the latch opening (7).