SU1668599A1 - Door lock - Google Patents

Abstract

The invention relates to locks, can be used for locking residential and office spaces and allows for improved reliability of locking the lock. The door lock includes a body, a bolt, a double-arm lever, rotated by a spiral key driver. A frame is installed on the crossbar, and the crossbar and frame are spring-loaded using a single spring. When locking the lock by pressing on the spring-loaded cylinder mechanism, the helical leash acts on the double-arm lever, withdrawing it from a steady state (from the fixing recess). Under the action of the spring, the lever arm slides along the ledge of the bolt, and then the frame rotates the lever to the vertical position. The frames simultaneously act on both arms of the lever, excluding the reverse movement of the bolt from the forced action on it, since bevel bolts at the same time also interact with the arms of the lever. The lock is unlocked by turning the driver clockwise. In this case, the lever moves the frame to the exit of one of the arms of the lever from contact with the bevel bolt. Further, the turn is carried out before the entrance of the other arm into the fixing recess of the bolt. The lock is used for both the "left" and the "right" doors. 4 il.

Description

The invention relates to locks and can be used to lock living and office spaces.

The aim of the invention is to improve the reliability of locking.

Figure 1 shows the lock in the open position; figure 2 - the same, in the closed position of the bolt; on fig.Z - section aa in figure 2; figure 4 - lock in the closed position, a view in axonometric view.

The door lock includes a housing 1, on which a cylinder spring-mounted mechanism with a screw driver 2 is fixed. In the housing 1, a bolt 3 is installed, in which a T-shaped hole 4 is made with bevels 5 and 6, made at the bottom of the shelf flange, two ledges 7 and 8

and a locking recess 9. On the crossbar 3, a frame 10 is mounted with the possibility of moving over the latter. The force of the spring 11 is applied to the frame 10, through which this force is transmitted to the bolt 3. In the T-shaped bolt 3, there is a double-arm lever 12, the shoulders 13 and 14 of which can interact with the face 15 of the frame 10. The lever 12 has a hole 16, protrusions 17 which are made to interact with the leash 2.

The lock works as follows.

When locking the lock by pressing on the cylinder spring-loaded mechanism (not shown), the screw-driver 2, which is in constant engagement with the two-arm lever 12, will interact with

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the protrusions 17 of the hole 16, removes its arm 13 from the fixing recess 9 and inserts the bolt 3 on the bevel 5. As a result, the bolt 3 is unlocked and under the action of the spring 11 begins to slide out of the housing 1. At the end of the stroke the frame 10 faces the shoulders 13 and 14 two shoulders lever 12, install the latter in a strictly vertical position. The reverse movement of the bolt 3 from the forced impact on it is excluded due to the simultaneous interaction of the bevels 5 and 6 with the shoulders 13 and 14 of the lever 12. Thus, the reliability of the lock is guaranteed.

Unlocking the lock outside the room is carried out with a key (not shown). In this case, the driver, acting on the protrusions 17, turns the lever 12 clockwise, which pushes the frame 10 by the shoulder 13, and the arm 14 comes out of contact with the bevel 6. Then, when the lever is rotated, the first arm 13 moves along the ledge 7 to the fixing recess 9. moving bolt 3 and full opening of the lock. In this case, the line passing through the axis of the lever 12 and the axis of the first arm 13 coincides with the center line of the bolt 3, which ensures a clear fixation of the latter in the open position of the lock.

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This lock can be used for both left and right doors. The differences will consist only in the mounting of the cylinder mechanism and, accordingly, in the other direction the leash 2 will rotate the lever 12.

Claims (1)

Claims of the Invention A door lock comprising a spring-loaded bolt with a T-shaped hole and a recess mounted in the housing with the possibility of longitudinal movement, a cylinder mechanism for moving the bolt including a helical rotary leash, and means for locking the crossbar including a double-arm locking lever mounted on the axis of the leash with the possibility of interaction the shoulders with the shelf base of the bolt hole in the Closed position and placing one of the shoulders in the recess of the bolt in the Open position, characterized in that pour enhance reliability locking fixing means includes Riegel frame mounted on the deadbolt movable therealong in a plane parallel to the plane of movement of the bolt, and reacting with the inner surface of the lever when locking shoulders, wherein the Riegel spring mounted to cooperate with the frame. P 17 W YU 13 Rig. if