DE3337765A1 - LOCK WITH A CYLINDER CORE - Google Patents

Description

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COHAUSZ & FLORACK

PATB NTANWALTS OFFICE
SCHUMANNSTR. 97 D-4000 DÜSSELDORF 1

Phone: i0211j 6833 46 Telex: 0858 6513 cop d

PATENT LAWYERS:
Dipl.-Ing. W. COHAUSZ Dipl.-Ing. R. KNAUF Dipl.-Ing. HB COHAUSZ Dipl.-Ing. DH WERNER

Neiman GmbH

Landstrasse 50-52
5657 Haan

Lock with a cylinder core

The invention relates to a lock with a cylinder core in which, transversely to the cylinder core axis, is in particular plate-shaped Tumblers are displaceable by a spring element arranged to the side of the tumbler in the cylinder core into a position that protrudes beyond the cylinder core jacket and locks the cylinder core rotation, and by a matching keys can be brought into a position that does not protrude beyond the cylinder core, the spring element with the first end on the tumbler and with the opposite second end on the cylinder core.

When assembling lock cylinders, the cylinder cores are first inserted before they are inserted into the lock the helical compression springs acting on the tumblers inserted and then the plate tumblers pushed into slots in the cylinder core so that each of the the tumbler protruding nose at the upper end of the helical compression spring arrives at the plant. In this way provided with springs and tumblers cylinder cores must be very

3337735

must be handled carefully, as the tumblers can easily fall out of the cylinder core. To prevent this from happening is it is known through an additional operation at least one edge of the slot-shaped recess in the cylinder core to bend inwards slightly, so that the insertion opening and the guard locking is prevented from falling out. It is also known to hold a guard to secure the inserted key in the cylinder core against falling out.

The object of the invention is to improve a structurally simple cylinder core with tumblers in such a way that that after inserting spring elements and tumblers, they do not fall out of the cylinder core can even though additional measures and work processes have not been carried out after insertion.

This object is achieved in that the The spring element is arranged at an angle to the direction of movement of the tumbler that the first end is closer to the tumbler lies as the second end, and that a tumbler side wall parallel to the direction of movement on which the The contact surface for the spring element protrudes, has a recess in the area of the first spring element end, in which the spring element rests partially.

With this solution, it is not just the guard locking that hinders Falling out of the spring element from the cylinder core but the spring element also prevents the tumbler from engaging Sliding out of the opening of the cylinder core. This mutual support is essentially achieved by that the spring element is inclined in its direction of movement to the direction of movement of the tumbler and the tumbler first assemble the spring element during insertion

presses and only after so far insertion, that about
corresponds to the highest later position of the guard locking,
the spring element snaps into a side recess on the tumbler and then eiiE over the highest position

the guard locking prevents movement of the guard locking out of the cylinder core.

One with spring elements and tumblers
Cylinder core can be used immediately after inserting these parts

be handled without special care, so that the

Assembly becomes much easier and more pleasant. Insertion of a key into the cylinder core for holding
of the tumblers during further assembly is not necessary and a change of cylinder cores as well as of

individual guard locking is easily possible.

It is preferably proposed that the spring element axis form an angle of QC = 3 to 30 degrees, in particular 5 to 20 degrees, with the direction of movement of the tumbler. An angle of
Proven 8 to 10 degrees.

It is preferably proposed that the one recess
for the tumbler side wall having the spring element is a narrow side of the tumbler that is parallel to the direction of movement and the cylinder core axis and the spring element axis lies in a plane at right angles to the cylinder core axis. Alternatively, however, the tumbler side wall having a recess for the spring element can also have a

direction of travel parallel and to the cylinder core axis right-angled flat side of the tumbler and the spring element axis lie in a plane that is the same or
is parallel to a plane which is formed by the cylinder core axis and the tumbler center axis.

3337755

In an alternative not shown in the drawing, can the recess can be formed by a projection of the tumbler side wall. It is also proposed that the tumbler contact surface forms part of the recess wall. It is particularly advantageous if a recess wall is parallel to the spring element axis. Here, the tumbler contact surface can be at right angles to the rest Be recess wall.

A particularly secure guidance of the guard locking as well as an optimal locking of the guard locking to prevent it from falling out is achieved in that the side of the recess facing away from the spring contact surface is connected Tumbler side wall lies in a plane that corresponds to the direction of movement the guard locking is parallel and the spring element intersects at an oblique angle.

A space-saving design is achieved in that the spring element has a larger diameter than that Width of the cylinder core recess provided for the tumbler in the direction of the cylinder core axis and that the spring element rests in an inclined bore which is penetrated by the cylinder core recess. Also will suggested that when introducing the tumbler, the spring element through the first introduced into the cylinder core In particular, the bottom side of the tumbler is compressible until the spring element is in its final position snaps into place.

It is particularly advantageous in all embodiments that With many types of lock, an outer cylinder is not necessary, since the cylinder core can also be handled without an outer cylinder can.

3337765 -β-ι An embodiment of the invention is shown in the drawing shown in a cylinder core with plate tumblers and is described in more detail below. Show it

Fig. 1 shows a cross section through a cylinder core in

Height of a guard locking device at the beginning of the insertion of the guard locking device,

FIG. 2 shows a section according to FIG. 1 with the tumbler pushed in so deep that the spring element almost

is completely compressed by the guard locking and

3 shows a section according to FIG. 1 with the tumbler pushed in so far that the spring element is in

the working position and thus in contact with the contact surface of the guard locking device has jumped.

A cylinder core 1 of a lock cylinder has slot-shaped transverse recesses 2 which are diametrically opposed to the cylinder core penetrate and are open on both sides of the cylinder core jacket 3. Number and dimensions of the transverse recesses 2 correspond to the number and the dimensions platelet-shapedx Tumblers 4 which can be pushed into the transverse recesses in the radial direction A. Through the cylinder core 1, a keyway 6 runs axially to the cylinder core axis 5, with the openings 7 of the same size in FIG the tumblers 4 are in alignment.

The two broad sides of each transverse recess 2 are through recesses in the cross section of circular segment-shaped recesses, which together with the space between the recess 2 form a bore 8 in which a spring element 9 in the form of a Helical compression spring of approximately the same diameter is inserted »

T -. Recess or bore 8 and thus also the spring element 9 are laterally next to the tumbler 4, the axis 1-0 of the spring element and the bore 8 lying in a plane perpendicular to the cylinder core axis 5 and with the central axis 11 of the tumbler and thus also with the Insertion direction A forms an angle of ac = approx. 10 degrees. In this inclined position, the first end 12 of the spring is closer to the tumbler than the second end 13.

The narrow side 14 of the tumbler facing the spring element 9 4 has a recess 15 in which the first end 12 rests at least partially and there the contact surface 16 of the guard locking touches. The tumbler 4 is opposed by the pressure of the spring element 9 on this contact surface 16 the direction of insertion A is spring-loaded. The recess

15 in the narrow side 14 is thus at least one Part of the contact surface 16 and one adjoining it at right angles Recess side wall 17 is formed, which in the direction of the second spring end in the narrow side 14 ends. This to the recess 15 on the contact surface

16 opposite side adjoining narrow side 14 is like the opposite narrow side 18 parallel to the central axis 11 and thus also parallel to the direction of insertion. Here an imaginary extension of the Narrow side 14 in the area of the recess 15, the spring element 9, so that the spring element moves in this area the tumbler 4 locks against the direction of insertion A.

The recess 15 provided for locking the tumbler does not necessarily have to be provided in one of the narrow sides 14, 18 but can also be introduced into one of the two flat sides 19. Not in this drawing

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In the version shown, the Pederelementeachse lies in a plane which is equal to or parallel to a plane which is formed by the cylinder core axis and the tumbler center axis. The spring element axis 10 thus forms the angle oi with the flat side 19. Furthermore, the recess 15 can be made in a reinforcement or a projection of one of the tumbler side walls 14, 18, 19, so that the locking effecting portion 14a of the tumbler side wall is formed by the portion of the projection end wall which is close to the second end 13 of the spring element 10 , just as the section 14a is closer to the second end 13 than to the first end 12.

Instead of a helical compression spring, a wide variety of Spring elements are used. This also applies to elastic plastic material that can be compressed in the longitudinal direction is.

Claims (10)

PATENT AGENCY OFFICE SCHUMANNSTR. 97 D-4000 DÜSSELDORF 1 Telephone: (0211) 683346 Telex: 0858 6513 cop d PATENT LAWYERS:
Dipl.-Ing. W. COHAUSZ Dipl.-Ing. R. KNAUF ■ Dipl.-Ing. HB COHAUSZ Dipl.-Ing. DH WERNER 09/20/1983 Expectations Lock with a cylinder core, in which especially plate-shaped tumblers transverse to the cylinder core axis are displaceable, which by a side of the tumbler arranged in the cylinder core spring element in a Over the cylinder core jacket protruding, the cylinder core rotation blocking position and by a suitable one Keys can be brought into a position that does not protrude beyond the cylinder core, whereby the Peder element with the first end on the tumbler and the opposite second end on the cylinder core applied, characterized in that the spring element (9) in such a way is arranged obliquely to the direction of movement of the tumbler (4) that the first end (12) closer to the tumbler lies as the second end (13), and that a tumbler side wall (14) parallel to the direction of movement, on which the contact surface (16) for the spring element (9) protrudes, in the area of the first spring element end (12) has a recess (15) in which the Spring element rests partially. 37 268
HC / Ka JO J / / 00 - 2 - 2. Lock according to claim 1, characterized in that the spring element axis (10) with the direction of movement of the tumbler (4) an angle of e (= 3 to 30 degrees, in particular of Forms 5 to 20 degrees. 3. Lock according to claim 1 or 2, characterized that the tumbler side wall having a recess (15) for the spring element (9) (14) is a narrow side of the tumbler that is parallel to the direction of movement and the cylinder core axis and the spring element axis (10) lies in a plane at right angles to the cylinder core axis (5). 4. Lock according to claim 1 or 2, characterized in that the one recess for the tumbler side wall having the spring element. one parallel to the direction of movement and to the cylinder core axis right-angled flat side (19) of the tumbler (4) and the spring element axis in one Plane is the same as or parallel to a plane from the cylinder core axis (5) and the tumbler center axis (11) is formed. 5. Lock according to one of claims 1 to 4, characterized in that the Recess is formed by a projection of the tumbler side wall. 6. Lock according to one of claims 1 to 5, characterized in that the Locking device surface (16) part of the recess wall forms. 3337735 7. Lock according to one of claims 1 to 6, characterized in that one Recess wall (17) parallel to the spring element axis (10) is. 8. Lock according to claim 6 or I _1, characterized in that the tumbler contact surface (16) is at right angles to the rest of the recess wall (17). 9. Lock according to one of claims 1 to 8, characterized in that the on the side facing away from the spring contact surface (16) the recess (15) adjoining tumbler side wall (14) lies in a plane which faces the direction of movement the tumbler (4) is parallel and the spring element (9) at an oblique angle (o < ) cuts. 10. Lock according to one of claims 1 to 9, d a characterized in that the The spring element (9) has a larger diameter than the width of the one provided for the tumbler (4) Cylinder core recess (2) in the direction of the cylinder core axis (5) and that the spring element (9) in one inclined hole (8). which is penetrated by the cylinder core recess (2). . Lock according to one of Claims 1 to 10, characterized in that at Introduce the tumbler (4) and the spring element (9) through the side that was first introduced into the cylinder core (1) in particular the underside of the tumbler (4) is compressible until the spring element (9) is in the final Position snaps into place.