A CHAIN WITHOUT A CHAIN

CHAIN WITHOUT A CHAINLatch shown in the figure, with success can replace a regular door chain, differing from it reliability and ease of use,— when the door is opened it just enough to push his foot and the path is clear.

 
The latch consists of three parts: body, tongue and a flat retaining springs. The housing can be made from a piece of aluminum extruded profile suitable cross-section or bending of sheet steel with a thickness of about 3 mm. For the tongue will need a steel plate 15Х30Х80мм. The locking spring is curved from a piece of clock or gramophone.
 
Latch
 
Latch:
 
1 — uvula, 2 — body, 3 — screw with nut 4 — retaining spring.

 
On the tongue are cut two of the locking groove and the sample is the pin for translating the latch to operating position. Axis of the latch is a bolt with thread M5.
 
Latch cuts flush with the plane of the floor and provorachivaetsya six screws.

Recommend to read

  • RULE, BRITANNIA, UNDER THE WATERS…RULE, BRITANNIA, UNDER THE WATERS…
    In the UK, "astroganga" in three types: A, b and C nearly five dozen descendants overseas "Holland", think about two things. First, they wanted to leave quite humiliating dependence on...
  • AND PAINT NOT WORSEAND PAINT NOT WORSE
      Tile for facing of walls can be laid not only on cement mortar or special mastics. Experience shows that quite satisfactory results are obtained by the use of oil paint with the...