Evva-werk Spezialerzeugung Von Zylinder- Und Sicherheitsschlossern

Evva Werk Spezialerzeugung Von Zylinder- Und Sicherheitsschloessern

Adalbert Paar

Alfred Burger

Kurt Prunbauer

Disclosed are cylinder lock arrangements which include a rotatable cylinder plug provided with recesses for guiding in axial direction blocking bars which cooperate with the cylinder housing to prevent in a blocking position thereof the rotation of the plug. The blocking bars are formed with blind bores which in a releasing axial position of the bars communicate with a key channel. The blind bores accommodate segmented pin tumblers which are controlled by control recesses on a lateral wall of a key so that upon the insertion of a correct key the separation planes of the segments of the pin tumblers coincide with the separation plane between the blocking bar and the clyinder plug. The key for the lock of this invention has a profile defined by alternating longitudinal ribs and longitudinal grooves whereby the crest regions of the ribs are formed with the control recesses arranged at different levels in accordance with the segments of the pin tumblers.

Arrangement for cylinder locks

A magnetic locking device for a door comprises a latch slidable from a locking position to an unlocking position and vice versa, a locking element provided with a number of webs and slidably mounted within the latch for moving the latch between the locking and unlocking position, and a number of magnetic rotors in the latch. Each magnetic rotor is formed with a recess in which the respective web of the locking element is engageable when the latch is moved from the locking position to the unlocking position. The magnetic locking device is further provided with a blocking element engageable with the locking element in the locking position and unlocking position.

Magnetic lock having a bolt and locking pieces

A control device for a magnetic cylindrical lock includes a tubular housing eventually having on its inner surface axial and circumferential grooves, a cylindrical plug rotatable in the housing about a central axis and defining a central key channel and at least one axial recess on its cylindrical surface, a plurality of magnetic rotors supported in the plug for rotation about an axis transverse to the center axis of the plug, one face of the magnetic rotors having a third recess alignable with the second recess, a sleeve arranged for rotation and for an axial displacement between the housing and the plug, and arresting elements projecting from the sleeve to cooperate with the recesses in the housing, in the plug, and in the magnetic rotary members.

Control device particularly for use in a lock

The control device for cylindrical locks includes a housing having on its inner surface longitudinal and annular guiding recesses, a cylindrical plug or core rotatable in the housing about its center axis and defining on its surface second recesses, at least one magnetic rotor supported in the plug for rotation about an axis transverse to the center axis and defining a third recess alignable with the second recess, control strap arranged for axial displacement on the plug and being rotatable therewith, and arresting elements projecting from the strap into the first and second recesses and being axially displaceable with the strap into engagement with the third recess in the rotary member when this third recess is in alignment with the second recess.

Growing community of inventors

Vienna, Austria

Adalbert Paar