DE530612C - Mortise cylinder lock - Google Patents

Description

GERMAN EMPIRE

ISSUED AK JULY 30, 1931

REICH PATENT OFFICE

PATENT LETTERING

JVl 530612 CLASS 68 a GROUP

Company Joh. WiIh. Brunnöhler in Velbert, RhId.

Mortise cylinder lock Patented in the German Reich on December 21, 1928

The cylinders of the mortise cylinder locks have so far been special on the lock case attached and the flat bar, which is located by means of a on the cylinder core Approach is shifted, must by special tumblers in its two end positions be secured so that it maintains its exact position against that approach.

In contrast, the insert cylinder lock according to the invention shows a fundamental one other design. It is essentially characterized in that the cylinder has a Has a transverse opening in which the sliding bolt is guided. As a result, serves the sliding bolt at the same time for fastening the cylinder, so that special fastening means for the cylinder and special tumblers for the bolt are unnecessary. No need for locks with a single bolt in the present case also the entire lock case, so that the new lock itself extremely compact and simply designed. Furthermore, in the present case, the sliding bolt i.a. can also be designed cylindrical, so that the previously common flat slot To accommodate the lock in the woodwork or the like. Not necessary, rather only two intersecting ones for the installation of the lock Holes are required.

To move the sliding bolt can be known in the present case Way to serve a gearing; this makes those special tumblers unnecessary to fix the sliding bolt in its two end positions. To prevent one Suffice it to completely pull out the bolt by means of the key from the lock in the present case in place of the previously usual longitudinal slot in the bolt simple stop on the faceplate of the lock, and a lower dimensioning of the last tooth gap of the bolt.

For double cylinder locks, an intermediate piece arranged between the two cylinder cores is provided for moving the sliding bolt in a manner known per se, which is coupled to one or the other of the two cylinder cores by the key used. According to the invention, this intermediate piece carries the teeth used to move the sliding bolt and is inserted into the bore containing the sliding bolt. Such an intermediate piece can also be used in single cylinder locks, which makes it possible to add these locks to a double cylinder lock by simply adding a second cylinder as required.

The drawing illustrates a single cylinder mortise lock in Figs. 1 and 2 Cross-section and in longitudinal section. Fig. 3 and 4 show a double cylinder mortise lock in plan view and lengthways. Fig, 5 shows a detail of this.

The cylinder α contains in the usual way the locked against rotation by tumblers and inserted by means of the

Key rotating core b. The cylinder a also has a transversely directed recess «in which the sliding bolt r is guided; this can have any cross-sectional shape "~;" In the present exemplary embodiments, a cylindrical bolt forms the sliding bolt.

In the embodiment according to Fig. Ι and 2, the core b carries on its back

ίο two pins j s, whose axis plane goes through the axis of rotation of the core and which are also symmetrical to the axis of rotation of the core; the sliding bolt r has a toothing r ¹ at its rear end, in which the pins s engage like a gearwheel when the core b is turned by means of the key and thus effect the displacement of the bolt in one direction or the other. The toothing can here, as shown, be designed in such a way that the bolt is displaced with a full stroke with one turn of the key. In the embodiment according to FIGS. 1 and 2, the pins J also serve to fasten a plate c holding the core b in the cylinder α against axial displacement. The last tooth gap χ of the bolt r is designed slightly less deep than the other tooth gaps, whereby the bolt in its inserted end position is locked against further rotation by the key and thus the rotation of the key is limited ·. On the faceplate d of the lock, a small nose d ^{1 is} arranged, which engages in a longitudinal groove η of the bolt r; this limits the bolt stroke in the other direction and the key rotation in this direction of rotation. For the purpose of good guidance of the bolt r , the faceplate d can be provided with a bolt guide sleeve h , which engages precisely in the transverse opening m of the cylinder α .

The lock is installed in such a way that the cylinder α is inserted into the usual hole in the woodwork or the like and the sliding bolt or this together with the sleeve h and the faceplate d inj a corresponding transverse hole is inserted and simply by turning the core b with the key and is brought in by means of the tooth pins j.

In the embodiment according to Fig. 3 to S, a core piece b ^s rotatable conaxially to these is inserted into the two identically designed cylinders a ¹ and a ^z between the two cores b ¹ and b ^2; this carries four toothed pins s ¹ , which engage in the toothing r ^{1 of} the bolt r . In the core b ¹ and b ² , a slide i which can be axially displaced by the inserted key is inserted; the two slides i ^{are in contact with one another by a pin / s} passed through the core piece b s, and they grip in a manner known per se, when the key is inserted into one or the other of the two cylinders, into a corresponding slot i ^{1 of} the core b ^s a, so that this is coupled to one or the other cylinder core.

Claims (2)

Patent claims: 1. Insert cylinder lock in which the pin tumblers are transverse to the cylinder axis and the bolt is driven by the pin of the cylinder core, characterized in that the pin housing (a) protrudes beyond the cylinder core and this extension has a transverse bore in which the sliding bolt is located · leads. - 2. Embodiment of the lock according to: Claim 1 with an intermediate piece which is coupled by the key to the cylinder core and serves to move the sliding bolt, in particular for Doppelzylinderschlosserj, characterized in that the intermediate piece (b ^s ) carries the teeth for moving the sliding bolt and at the end of the cylinder back or between the two cylinder cores is inserted into the bore of the cylinder lock containing the bolt. 1 sheet of drawings