| 摘要 |
The keyhole aperture (18) in the shelving profile has a lower wide part and a narrow upper part. A similar aperture (15) is provided in the column (11), but with an opposite configuration, i.e. with the wider part (16) at the top. A bolt with an inner and outer head and an intermediate body is inserted in the aperture wider parts so that, after the profile is moved along the column, a locking position is achieved, in which the bolt body is located in the narrow parts of the apertures, whilst the bolt heads fit against the respective profiles outside the apertures. |
