FIELD: ironmongery, particularly protective means for locks.
SUBSTANCE: covering plate comprises outer member, which closes access to cylinder mechanism, and rotary protective washer installed inside outer member. The washer comprises key hole. The outer member is provided with cavity. Washer is arranged in outer member and may slide in key driving direction. Annular groove is formed in outer member cavity. The cavity is also adapted for protective case receiving. The protective case comprises orifice in which support bush is installed so that the support bush is coaxial to protective washer and may contact with it. The support bush encloses cylinder mechanism. Outer member may be longitudinally and angularly displaced relatively the case. Case, outer member and support bush are provided with coaxial orifices for wire leads receiving.
EFFECT: increased resistance to breaking-in.
4 cl, 2 dwg
| Title | Year | Author | Number |
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