| 摘要 |
A burglar-proof locking device for fastening a light dome to a sash member of a skylight or roof window, comprising a locking member having a first and a second end, which first and second ends are positioned along a longitudinal axis of said locking member, said first end projecting outwardly from said locking device and being connected with a locking means adapted to rotate into engagement with a corresponding locking means of said sash member. Said second end of said locking member provides an engagement means, such as a snake-eye notch, adapted for engagement with a special tool, such as a tool comprising a snake-eye projection, said engagement means being surrounded by a cap with a centre aperture allowing for insertion there-through of said special tool into said engagement means for rotation of said locking device, said cap otherwise covering said second end of said locking member, said cap being freely rotatable about said longitudinal axis in relation to said locking member such as to prevent rotation of said locking member without use of said special tool. |
