| 摘要 |
Barring post of which the upper part (4) is hinged with the lower part (2) about an axis (5) transversal to the post, and on which is arranged a locking device with a lock (7) and bolts, by means of which the parts of the post are kept together locked in position of standing up barrage. The locking device has a sliding piece along the post which is lockable against any displacement on the post in barring position by means of the bolts, in which position each part of the post and the sliding piece are engaged actually one into the other preventing the tilting. The sliding piece may be formed with a sliding sleeve (6) surrounding the post in which are engaged actually both parts (2, 4) of the post in the barring position. |
