ES2985926T3 - Profiled cylinder - Google Patents

Abstract

A profile cylinder extending along a longitudinal axis comprises one or more bolt pins, each of which has a core pin, a shell pin and a bolt spring, and an outer shell having a substantially hollow cylindrical core receiving portion and a flange portion protruding radially away from the core receiving portion with respect to the longitudinal axis, wherein the flange portion is closed at a front side of the outer shell and open at a rear side or bottom side of the outer shell. Furthermore, the profile cylinder has a cylinder core which is rotatably mounted on the core receiving portion of the outer shell, and comprises an inner shell which is inserted into the flange portion of the outer shell through the open rear side or bottom side. (Automatic translation with Google Translate, no legal value)

Description

DESCRIPTION

Profiled cylinder

The invention relates to a profiled cylinder, in particular according to DIN 18252, which extends along a longitudinal axis and comprises one or more pin retainers, each of which comprises a core pin, a housing pin and a retaining spring. Such a profiled cylinder has an outer housing which comprises an essentially hollow cylindrical core receiving section and a flange section which projects radially from the core receiving section relative to the longitudinal axis. In this respect, a cylinder core is rotatably mounted in the core receiving section of the outer housing, which has one or more retaining channels in which the core pin(s) are mounted. Such a profiled cylinder has an asymmetrical cross section, the outer housing transitioning from a circular cross section of the core receiving section to an elongated flange section.

Furthermore, the invention relates to a double cylinder with two profiled cylinders of this type, as well as to respective methods for assembling a profiled cylinder and a double cylinder.

In particular, profile cylinders of this type can be provided for insertion into a mortise lock of a door in order to be able to lock or unlock the door as desired. In this case, in the locked state of the lock, the housing pins can engage in the retaining channels of the cylinder core, so that a rotation of the cylinder core is blocked. For example, by inserting a corresponding key, the core pins can be arranged in such a way that the housing pins are displaced from the retaining channels of the cylinder core against the bias exerted by the retaining springs, thus releasing the cylinder core for a rotary movement. As a result, a rotation of the key can be transmitted to the cylinder core in order to move, for example, a cam coupled to the cylinder core and thereby move a lock of any choice from a locking position, in which the door is locked, to an unlocking position, in order to open the door.

Furthermore, it may be possible to provide a double cylinder with two such profile cylinders in order to be able to lock or open a building door, for example, using a key, both from the outside of the building and from the inside of the building. In this respect, it may also be possible to arrange other elements between the profile cylinders in order to be able to adapt, for example, the distance between the profile cylinders and the extension of the double cylinder along the longitudinal axis to the respective door and in particular to the thickness of its door leaf and fittings. Even in the case of profile cylinders that are only provided individually (e.g. knob cylinders), it may be necessary to connect the profile cylinder with other elements and thus lengthen it in order to be able to insert the profile cylinder with a precise fit into a respective mortise lock.

A double cylinder of this type is described in EP 2597230 A1, which can be operated on both sides by means of a key.

Furthermore, a cylinder lock is known from GB 1473476 A in which a block with holes for receiving retaining pins is inserted into an outer housing.

US 2013/091911 A1 shows a cylinder lock having a housing with a central section for receiving retaining pins, in which two housing halves are riveted. The housing halves form a hollow cylindrical section above the central section in which a rotating cylinder is accommodated.

Document FR 2847926 A1 shows a double cylinder, in which an insert with several holes for receiving retaining pins is inserted into a housing.

Due to such a structure of a profiled or double cylinder, its assembly takes quite a lot of time, which is undesirable.

An object of the invention is therefore to provide a profile cylinder with one or more pin retentions, which enables simple, fast and flexible assembly as well as the achievement of high safety standards and, by means of whose configuration, in particular, a simple connection of two profile cylinders of this type to form a double cylinder can also be achieved.

This object is achieved by a profile cylinder having the features of claim 1 and in particular in that the profile cylinder comprises an inner housing having at least one retaining channel in which the respective retaining spring and the respective housing pin are accommodated, the flange section of the outer housing being closed at a front side of the outer housing and, according to a first embodiment, the flange section being open at a rear side of the outer housing and the inner housing being inserted through the rear side of the outer housing into the flange section, in particular along the longitudinal axis or along a direction running inclined to the longitudinal axis, or, according to a second embodiment, the flange section of the outer housing being open at a lower side of the outer housing and the inner housing being inserted through the lower side of the outer housing into the flange section, in particular along a transverse axis perpendicular to the longitudinal axis or along a direction running inclined to the longitudinal axis. to the transverse axis.

The inner and outer housings are therefore designed separately and are matched to each other in such a way that the inner housing can be inserted into the flange section of the outer housing. As a result, small-sized retaining springs and housing pins can first be inserted into the retaining channels of the inner housing without any spatial restrictions on the outside of the outer housing of the profile cylinder. The fully assembled inner housing, i.e. together with retaining springs and housing pins, can then be inserted into the flange section in a single assembly step by means of a simple linear movement.

In particular, according to a first embodiment, the inner housing can be inserted along the longitudinal axis into the flange section via an open rear side of the flange section. It is also possible to design the outer housing such that the inner housing can be inserted into the flange section via an open rear side along an inclined direction or at an acute angle to the longitudinal axis. Alternatively, according to a second embodiment, it can be provided that the flange section has an open lower side, via which the inner housing with the retaining springs and housing pins received therein is inserted into the flange section of the outer housing. In particular, such an insertion can be carried out by a linear movement along a transverse axis oriented perpendicularly to the longitudinal axis, it being possible also to provide an insertion from a direction running inclined or obliquely at an acute angle to such a transverse axis.

Each of these different insertion options requires only a linear movement, so that the connection of the inner housing to the outer housing can be achieved in a simple, fast and therefore easy-to-assemble manner. In order to further simplify or facilitate the insertion of the inner housing into the outer housing, guide devices can also be provided. For example, a straight groove can be configured on at least one inner side of the outer housing, into which a rib configured on the outer side of the inner housing engages during insertion into the flange section.

In principle, in a combination of the first and second embodiments, the flange section can be open on both a rear side and a bottom side, it being also possible for only a rear side or a bottom side of the flange section to be open. In particular, in the case of a flange section designed with an open bottom side, the inserted inner housing can widen the flange section with a precise fit and close the open bottom side such that the outer shape of the profile cylinder complies with the specifications of DIN 18252 despite having an open bottom side. In this respect, the edges delimiting the opening formed on the bottom side of the flange section can form a stop for the inner housing during insertion, in order to ensure its correct positioning in a simple manner.

The inner housing may have several retaining channels in which respective retaining springs and housing pins are accommodated, which together with the core pins form the corresponding pin retainers. In principle, however, the inner housing can also be designed with only one retaining channel for receiving a retaining spring and a housing pin, which together with a core pin accommodated by the cylinder core form a pin retainer. In particular, in such a configuration of the profile cylinder with only one pin retainer, additional locking elements can be integrated into the cylinder core in order to reliably prevent the lock from turning in the locked state.

Since the flange section of the outer housing is closed on one front side of the outer housing, the flange section can protect the inner housing on this front side from access from the outside. In addition, the closed front side of the flange section can form a stop when the inner housing is inserted through an open rear side of the flange section, so that it can be easily detected haptically during assembly when the intended end position of the inner housing is reached (e.g. also in the case of press-in by swaging into the end position). In this way, a correct arrangement of the inner housing can be ensured.

The front side of the outer housing mentioned in connection with the invention corresponds to the front side of the profile cylinder which in the assembled state of the profile cylinder is visible from the outside and which normally has a key insertion opening for inserting a key into a key channel of the cylinder core. The lower side of the outer housing mentioned in connection with the invention is oriented in the direction in which the flange section protrudes from the core receiving section of the outer housing and in the assembled state of the profile cylinder is normally oriented downwards.

In some embodiments, the outer casing may be circumferentially closed at least along a portion of its longitudinal extent relative to the longitudinal axis. In this case, the outer casing may circumferentially enclose the cylinder core and the inner casing, so that the cylinder core and the inner casing are reliably held and protected by the outer casing against interference from the outside. Such a circumferentially closed outer casing may have a high level of stability, in particular in order to withstand any application of force in the event of forced opening attempts and in order to achieve a high level of security for the profile cylinder and the door closed by it.

It may be provided that the core receiving section of the outer housing encloses a receiving space for the cylinder core, the flange section of the outer housing enclosing a receiving space for the inner housing, the receiving space for the cylinder core being open towards the receiving space for the inner housing. In particular, the core receiving section of the outer housing may in this respect be open towards the flange section and otherwise be closed circumferentially without interruption, in particular also without radial openings for inserting core pins (for example on the upper side of the core receiving section). In such embodiments, the outer housing therefore does not form a dividing wall between the two receiving spaces, so that the cylinder core arranged inside the outer housing can be in direct contact with one side, in particular an upper side, of the inner housing arranged inside the flange section. The inner housing can therefore adjoin the cylinder core on an upper side facing the cylinder core. Thanks to the otherwise uninterrupted circumferential enclosure of the cylinder core, the outer casing can be designed to be particularly stable and offer reliable protection against external interference.

The rear side of the outer casing can be completely open, so that not only the flange section, but also the core receiving section can have an opening, in particular a continuous, i.e. common, opening, on the rear side of the outer casing. This simplifies the manufacture of the outer casing and the assembly steps required on the rear side (insertion of the inner casing, fixing of the cylinder core).

The cylinder core can be directly housed in the core receiving section of the outer casing. Therefore, the cylinder core can be inserted directly into the outer casing, and no other elements need to be inserted or mounted relative to the cylinder core rotating support.

The inner shell inserted into the outer shell can extend essentially along the entire longitudinal extent of the outer shell.

In some embodiments, the upper side of the inner housing can form a support section for rotatably supporting the cylinder core, whereby the support section can be cylindrically concavely curved. In this way, a smooth and even rotation of the cylinder core can be achieved during closure. In this case, the support section can be adapted in particular to the shape of the cylinder core and can be designed cylindrically concave or in the form of a circular arc. In particular, the upper side or the support section can extend in the circumferential direction in the form of a circular arc, whereby the radius of the circular arc can coincide with the outer radius of the cylinder core within the framework of manufacturing tolerances. Furthermore, the upper side of the inner casing may be configured such that the upper side continues the shape of an inner surface of the core receiving section at an interruption of the core receiving section towards the flange section, so that the cylinder core inserted into the core receiving section may be wrapped along the entire circumference and with a fitting precision.

In some embodiments, the retaining channels of the inner housing may be open on the upper side of the inner housing. As a result, the retaining channels can be filled directly from the upper side of the inner housing with the retaining springs and the housing pins. In addition, a plurality of retaining openings aligned with the respective retaining channels passed through by the housing pins may be formed on the upper side. As a result, the housing pins can engage in the retaining channels of the cylinder core, in particular in a locking position of the latter, in order to prevent a rotary movement of the cylinder core and to be able to lock, for example, a door.

The inner housing may have a closed base on the underside facing away from the cylinder core, on which the retaining springs are supported. This can prevent, in particular, the retaining springs and housing pins from becoming loose from the retaining channels of the inner housing during assembly. If the inner housing has an integrally formed base (i.e. formed in one piece by material connection), no separate component is required to support the retaining springs, and the assembly effort is also correspondingly reduced.

According to the invention, the retaining channels are closed by the inner housing on a lower side opposite the upper side of the inner housing, so that the retaining springs and the inserted housing pins cannot fall out of the inner housing.

In some embodiments, the inner housing may be of a single-piece design. Alternatively, it may be provided that the inner housing is of a two-part design and has a first inner housing part and a second inner housing part, which lie against each other along a separating plane. In particular, in such a two-part design of the inner housing, the longitudinal axis may run in the separating plane or parallel to it. The separating plane may run through the retaining channels of the inner housing.

The outer housing may have at least one guide for guiding the inner housing during insertion into the flange section, whereby the inner housing may have a counter-guide in addition to the guide. For example, in the case of a flange section with an open rear side, the guide may be designed as a recess extending along the longitudinal axis or inclined relative to it, into which an elevation of the inner housing extending along the longitudinal axis or inclined relative to it engages and which forms the counter-guide during insertion along the longitudinal axis and/or in the assembled state. This may initially allow a controlled and guided insertion of the inner housing into the outer housing. Furthermore, the inserted inner housing may be stabilised in the outer housing by such an interaction between the guide and the counter-guide and protected against external force effects in this direction. A reverse configuration of the guide as an elevation and the counter-guide as a recess may also be provided. In particular, the guide can be configured in the flange section. The recess and the elevation can each be configured in a straight-line elongated form, in particular as a groove or as a rib.

Even in the case of an outer housing designed with an open underside, through which the inner housing is inserted into the flange section, guides and counter-guides can be provided which interact in this way, the guide and counter-guide being able to run in particular along a transverse axis which runs perpendicularly to the longitudinal axis or at an angle to it.

As mentioned above, both when inserting the inner housing through an open rear side and when inserting it through an open bottom side, guides running at an angle to the longitudinal axis or the transverse axis and counter guides interacting with these can also be provided in order to be able to insert the inner housing, for example, from a point arranged obliquely below in the flange section through an open rear side or an open bottom side.

In some embodiments, the inner housing can be held in the outer housing with a positive and/or non-positive fit. In particular, the inner housing can be recessed in the outer housing in this respect. In addition, fastening elements can be formed in the inner housing to achieve or reinforce a positive-fit hold of the inner housing in the outer housing. For example, the inner housing can have grooves or undercuts on at least one outer side, into which the outer housing is pressed to hold the inner housing with a positive fit. Due to a positive-fit hold of the inner housing in the outer housing, the inner housing can be held stably and reliably in the outer housing immediately after being inserted into the flange section, without any further assembly steps being required in principle for fixing the inner housing in the outer housing.

As an alternative or in addition to a positive-fit and/or non-positive-fit fastening of the inner housing in the outer housing, a fastening element extending transversely to the longitudinal axis may be provided in order to firmly fasten the inner housing in the outer housing. In this case, the outer housing may have a safety opening which is aligned with a safety channel formed in the inner housing, the inner housing being able to be fastened in the outer housing in the axial direction with respect to the longitudinal axis by an engagement of the fastening element through the safety opening in the safety channel. In particular, such a fastening element may be configured as a screw or pin.

In some embodiments, the core receiving section may have an access opening on the front side of the outer housing and form a front edge of the access opening, the cylinder core having a front widening which rests on the front edge of the access opening, and the core receiving section may have a through opening on the rear side of the outer housing and form a rear edge of the through opening, at least one securing element being provided which is connected to the cylinder core in an axially fixed manner with respect to the longitudinal axis, the securing element resting at least partially on the rear edge of the through opening and/or extending at least partially over a rear front side of the inner housing.

Such an access opening can be used to access the cylinder core, even in the assembled state of the profile cylinder, in order to rotate the cylinder core with a suitable key and to lock or unlock the associated lock as desired. For this purpose, an opening for inserting the key can be provided on the front side of the cylinder core. In addition, the cylinder core can be inserted into the core receiving section via the access opening.

Since the cylinder core has an enlargement or a collar which rests on the front edge of the access opening formed by the flange section, a movement of the cylinder core inserted in the core receiving section relative to the longitudinal axis in the direction of the rear side of the outer housing can be blocked axially. The front edge can thus initially form a stop when the cylinder core is inserted through the access opening in the core receiving section, so that a correct positioning of the cylinder core and the core pins received therein in the axial direction can be easily achieved. In the assembled state, the cylinder core can also be secured by the enlargement in the direction of the rear side of the outer housing. By means of a securing element which is axially fixedly connected to the cylinder core and which rests at least partially on an edge of a passage opening opposite the access opening, the cylinder core can be held axially fixedly relative to the longitudinal axis, also in the direction of the front side of the outer housing. Any axial movements of the cylinder core, particularly during a forced opening attempt, can therefore be reliably prevented on both sides, on the one hand by the widening and on the other hand by the safety element.

Furthermore, the fact that the securing element extends at least partially over a rear end face of the inner housing can also secure the cylinder core axially relative to the longitudinal axis in the direction of the front side of the outer housing. In this direction, a movement of the inner housing is limited by the closed flange section on the front side of the outer housing, so that the cylinder core, which is supported by the securing element against the inner housing axially in the direction of the front side, is also supported by the flange section. In particular, the inner housing can in this case bear against the closed front side of the flange section.

In contrast, the inner housing can also be axially secured, particularly in the locked state of the lock, in which the housing pins engage radially relative to the longitudinal axis in the retaining channels of the cylinder core, by the cylinder core, which is locked on both sides in the axial direction. Not only by the engagement of the housing pins in the retaining channels of the cylinder core, but also by the securing element extending over the rear end of the inner housing, the inner housing can be axially secured in the direction of the rear end of the flange section and can be held axially fixed in the outer housing together with the cylinder core (by the widening of the latter which rests on the front edge of the access opening). In this way, the inner housing can also be reliably prevented from separating from the outer housing in this direction, even in spite of an open rear end. Also, the widening of the cylinder core that rests on the forward edge of the access opening may prevent the outer casing from being pulled forward away from the inner casing.

In particular, such a safety element can be provided as a safety ring which is inserted in a positive-fitting manner into an engagement groove formed in the cylinder core. In this case, the cylinder core can protrude from the rear passage opening of the core receiving section in order to be able to be connected, for example, with a cam or by means of a coupling unit to a cylinder core of another profiled cylinder to form a double cylinder. Such a safety ring can be designed, for example, in a C-shape or as a circular arc and have an opening, so that during assembly the safety ring can be guided radially past the cylinder core by bending and widening the opening and inserted into an engagement groove. Optionally, as an alternative or in addition to a safety ring configured in this way, a compensation ring configured as a closed ring can be provided as a safety element. In particular, such an annular and optionally additional safety element can ensure that a rear end face of the inner housing passes over it, even during the rotary movement of the cylinder core or independently of its rotary position, so that a possible short-term release of this end face by the opening in a C-shaped safety ring which rotates with the cylinder core during a closing process can be compensated.

In some embodiments, at least one anti-drill slot for receiving an anti-drill pin extending along an anti-drill axis oriented perpendicularly to the longitudinal axis may be configured on an outer side of the inner housing, wherein the inner housing forms a delimitation of the anti-drill slot at least at one end, i.e. at a first end and/or at a second end relative to the anti-drill axis. Such a configuration of an anti-drill slot may allow the anti-drill pin to be inserted laterally into the anti-drill slot and to be inserted together with the inner housing into the flange section of the outer housing. The anti-drill pin can also be easily inserted into the outside of the outer housing without spatial limitation. In particular, the anti-drill pin can be held in a non-positive and/or positive fit in the anti-drill slot to prevent the anti-drill pin from separating from the inner housing during assembly.

The outer and inner casings can be made of different materials, with the inner casing being made of die-cast zinc and/or the outer casing being made of hardenable or tempered steel. This can enable the simplest, quickest and most economical production of these parts of the profile roll, taking into account the respective requirements of these parts. In particular, the production of the outer casing from hardenable or tempered steel can increase its resistance to attempts to damage the profile roll by drilling.

In some embodiments, the inner housing may have a clamping section which is designed to positively clamp a connecting bridge for connecting the profiled cylinder to a connecting element, in particular another profiled cylinder, in the axial direction relative to the longitudinal axis. In this respect, the outer housing may in particular be designed to receive the connecting bridge and/or surround it circumferentially.

Since the connecting bridge can be held in a positive-fitting axial direction by the clamping section of the inner housing, the connecting bridge can also be first connected to the inner housing on the outside of the outer housing and then inserted together with the inner housing into the flange section of the outer housing. After the inner housing has been inserted into the flange section, the connecting bridge can be held by the clamping section in the axial direction relative to the longitudinal axis and secured in the radial direction by the outer housing enclosing the connecting bridge. This can reliably prevent the connecting bridge from becoming detached from the inner or outer housing and can also prevent external access to the connecting bridge.

Such a connecting bridge can be provided, for example, to connect a profile cylinder to another profile cylinder, which together form a double cylinder. In addition, the profile cylinder can be connected to another element by means of such a connecting bridge, so that, for example, the extension of a profile cylinder that is only accessible from one side of the door along the longitudinal axis can be adapted to the respective thickness of the door leaf and the fittings.

The clamping section of the inner housing may have at least one engagement rib oriented transversely to the longitudinal axis, which engages with a positive fit in an engagement recess formed in the connecting bridge. Alternatively or additionally, the flange section of the outer housing may have a circumferential recess open towards the rear side of the outer housing, into which the clamping section of the inner housing engages with a positive fit.

Such an engagement rib, which is oriented transversely to the longitudinal axis and engages in an engagement recess formed in the connecting bridge, can enable a simple positive-fit and/or non-positive-fit connection between the connecting bridge and the clamping section in order to secure the connecting bridge in the axial direction relative to the longitudinal axis in the inner housing. Furthermore, the connecting bridge can have a plurality of engagement recesses spaced apart in the direction of the longitudinal axis, in particular in a regular pattern, so that the length of the part of the connecting bridge projecting from the outer housing along the longitudinal axis can be variably adjusted. In particular, the longitudinal extent of an arrangement consisting of the profiled cylinder as well as another element connected to the profiled cylinder via the connecting bridge, for example a second profiled cylinder of a double cylinder, can be flexibly adapted to the respective circumstances.

If the flange section of the outer housing has a circumferential recess in the direction of the rear side of the outer housing, the necessary space can be created in particular for the reception of the connecting bridge. In this case, the clamping section of the inner housing can engage with a positive fit in the recess of the outer housing and close it flush, so that a profiled cylinder design with a completely closed circumference on the outside can still be achieved.

The invention further relates to a double cylinder with a first profile cylinder and a second profile cylinder, which are each designed in the manner disclosed herein, and with a connecting bridge, the first profile cylinder and the second profile cylinder being connected to one another by means of the connecting bridge and the connecting bridge being held in the axial direction by a respective clamping section of the inner housings of the profile cylinders.

As already explained above, the configuration of the profile cylinders enables quick and easy assembly of these profile cylinders and their connection with the connecting bridge. The connecting bridge, which is held in place by the inner housings fixed to the outer housings, can hold the two profile cylinders securely together in this respect.

It may be provided that a coupling unit is arranged between the first profile cylinder and the second profile cylinder, which couples the cylinder cores of the first profile cylinder and the second profile cylinder to one another. This may in particular allow easy operation of the double cylinder from both sides of a door.

The connecting bridge can be fitted with a screw hole for the cylinder. This allows the double cylinder to be fixed in a single-door mortise lock.

In some embodiments, at least one spacer may be provided, which is arranged between the coupling unit and the first profile cylinder and/or between the coupling unit and the second profile cylinder and which defines a distance in the axial direction from the longitudinal axis between the first profile cylinder and the second profile cylinder. By means of such a spacer, the extension of the double cylinder along the longitudinal axis can be flexibly adapted, in particular to a respective thickness of the door leaf. The spacer may have an insertion section through which the connecting bridge can be guided. During assembly, the spacer can thus easily slide past the connecting bridge along the longitudinal axis and can enclose the connecting bridge circumferentially in the assembled state. In particular, the spacer can be connected with a positive and/or non-positive fit to the connecting bridge and have at least one engagement rib, which engages in an associated engagement recess of the connecting bridge.

The invention further relates to a method for mounting a profiled cylinder as disclosed herein. In this regard, the core pin(s) are inserted into the retaining channel(s) of the cylinder core and the cylinder core is inserted axially with respect to the longitudinal axis into the core receiving section of the outer housing, in particular through its front side. The retaining spring(s) and the housing pin(s) are inserted into the retaining channel(s) of the inner housing. In accordance with the first embodiment, the inner housing is then inserted into the flange section of the outer housing via its rear side, in particular along the longitudinal axis of the profiled cylinder or along a direction running at an angle to the longitudinal axis, or in accordance with a second embodiment, the inner housing is inserted into the flange section of the outer housing via its underside, in particular along a transverse axis perpendicular to the longitudinal axis or along a direction running at an angle to the transverse axis.

Since the core pins, the retaining springs and the housing pins can be inserted into the respective retaining channels of the cylinder core or the inner housing on the outside of the outer housing, the insertion of these small elements can be carried out in a simplified manner and without any spatial restrictions. The respective insertion of the cylinder core and the inner housing by linear movements enables an uncomplicated implementation in this respect, so that the assembly can be carried out and completed extremely quickly.

For example, the cylinder core can be inserted into the core receiving section of the outer housing in such a way that the openings of the retaining channels of the cylinder core are covered by an inner surface of the outer housing, preventing the core pins from falling out. If the flange section has an open rear side, the inner housing can then be inserted into the flange section through the rear side of the outer housing, for example axially with respect to the longitudinal axis, the housing pins protruding at least partially from the retaining channels of the inner housing being able to be displaced backwards during insertion against the bias exerted by the retaining springs, for example manually. As soon as a respective retaining channel with the associated retaining spring and the associated housing pin has been pushed forward, a displacement of the housing pin outwards can be blocked by an outer surface of the already inserted cylinder core which rests against it and further insertion of the inner housing is possible.

As an alternative to inserting the inner housing through an open rear side, the flange section may have an open bottom side and the inner housing can be inserted into the flange section together with the retaining springs and the housing pins received through the bottom side of the outer housing. In this case, the housing pins protruding from the retaining channels can be displaced rearwardly against an outer side of the cylinder core by the pretension of the retaining springs, thereby exerting pressure on the inner housing. In addition, the inner housing can be held in a positive and/or non-positive fit in the outer housing during or after insertion into the latter, so that the inner housing can be prevented from being pushed out of the outer housing by the spring forces exerted by the retaining springs and transmitted to the cylinder core via the housing pins.

After the inner housing has been fully inserted, the cylinder core can be turned, for example by means of a key or tool, in order to align the retaining channels of the cylinder core with the retaining channels of the inner housing. In this position, the housing pins can engage with the retaining channels of the cylinder core due to the pretension exerted by the retaining springs and block further rotary movement. By inserting a suitable key, the core pins can in turn be arranged in such a way that the housing pins move out of the retaining channels of the cylinder core against the pretension of the retaining springs and release the cylinder core for a rotary movement, for example, to be able to unlock a closed door.

After insertion into the core receiving section and after insertion of the inner housing into the flange section of the outer housing, the cylinder core can be connected, as mentioned, with a securing element, in particular with a securing ring. In this way, the cylinder core can be positioned in a fixed manner in the axial direction and secured against forces acting in this direction. In this respect, it can be provided that the securing element extends at least partially over a rear end face of the inner housing, thereby securing the inner housing against axial rearward movement relative to the cylinder core.

It may be provided that the inner housing is held in the outer housing with a non-positive and/or positive fit after insertion into the flange section of the outer housing, with the inner housing being able to be clamped in particular during insertion into the outer housing. This may allow a stable mounting of the inner housing in the outer housing, without further assembly steps being necessary after insertion for fixing the inner housing.

The inner housing can be configured as a single piece or the inner housing can have a first inner housing part and a second inner housing part, the first inner housing part and the second inner housing part being able to be connected to one another prior to insertion of the retaining springs and the housing pins into the inner housing, in particular along a parting plane.

The invention further relates to a method for assembling a double cylinder as disclosed herein, comprising the following steps:

- insert the core pin(s) into the cylinder core retaining channel(s) of the first profiled cylinder;

- inserting the cylinder core axially with respect to the longitudinal axis of the first profiled cylinder into the core receiving section of the outer casing of the first profiled cylinder, in particular through its front side;

- insert the retaining spring(s) and the housing pin(s) into the retaining channel(s) of the inner housing of the first profiled cylinder;

- connect the connecting bridge with the clamping section of the inner casing of the first profiled cylinder;

- inserting the arrangement consisting of the inner casing of the first profiled cylinder and the connecting bridge into the outer casing of the first profiled cylinder via its rear side, in particular along the longitudinal axis of the first profiled cylinder or from a direction running inclined to the longitudinal axis of the first profiled cylinder;

either

inserting the arrangement consisting of the inner casing of the first profiled cylinder and the connecting bridge into the outer casing of the first profiled cylinder via its underside, in particular along a transverse axis perpendicular to the longitudinal axis or from a direction running inclined to the transverse axis of the first profiled cylinder;

- insert the core pin(s) into the cylinder core retaining channel(s) of the second profiled cylinder;

- inserting the cylinder core axially with respect to the longitudinal axis of the second profiled cylinder into the core receiving section of the outer casing of the second profiled cylinder, in particular through its front side;

- insert the retaining spring(s) and the housing pin(s) into the retaining channel(s) of the inner housing of the second profiled cylinder;

- connect the connecting bridge with the clamping section of the second inner casing; and

- inserting the arrangement consisting of the inner casing of the second profiled cylinder and the connecting bridge into the outer casing of the second profiled cylinder via its rear side, in particular along the longitudinal axis of the second profiled cylinder or from a direction running inclined to the longitudinal axis of the second profiled cylinder;

either

inserting the arrangement consisting of the inner housing of the second profiled cylinder and the connecting bridge into the outer housing of the second profiled cylinder via its underside, in particular along a transverse axis perpendicular to the longitudinal axis or from a direction running inclined to the transverse axis of the second profiled cylinder.

In this respect, the longitudinal axis of the first profiled cylinder may coincide in particular with the longitudinal axis of the second profiled cylinder.

In this assembly process, the first profile cylinder of the double cylinder is first assembled essentially in the manner described above, with the connecting bridge being connected to the clamping section of the inner housing before the inner housing is inserted into the flange section of the outer housing of the first profile cylinder. The connecting bridge is then inserted together with the inner housing into the outer housing, with the connecting bridge projecting axially relative to the longitudinal axis of the first profile cylinder from the outer housing in order to be connected to the inner housing of the second profile cylinder.

The core pins of the second profile cylinder are also inserted into the retaining channels of its cylinder core and the cylinder core is axially inserted into the core receiving section of the second profile cylinder. The inner housing of the second profile cylinder can be connected via the clamping section with the connecting bridge already connected to the first profile cylinder, so that after the inner housing has been inserted into the flange section of the outer housing of the second profile cylinder, the two profile cylinders are held together by the connecting bridge and the double cylinder is completely assembled.

It may be provided that a coupling unit is brought into engagement with the core of the first profiled cylinder before the inner housing of the second profiled cylinder is fully inserted into its outer housing. In particular, the coupling unit can be brought into engagement with the core of the first profiled cylinder immediately before the inner housing of the second profiled cylinder is fully inserted or before the insertion of the inner housing of the second profiled cylinder begins, so that after the inner housing has been fully inserted, the coupling unit also engages with the cylinder core of the second profiled cylinder.

It may be provided that a spacer is connected to the connecting bridge and/or to the cylinder core of the first profile cylinder and/or to the cylinder core of the second profile cylinder. This may in particular make it possible to flexibly adapt the extension of the double cylinder along the longitudinal axis to the respective conditions and in particular to the thickness of the door leaf and the fittings of a door in whose mortise lock the double cylinder is to be inserted.

The clamping sections may have at least one respective meshing rib projecting from an inner side of the inner housing, the connecting bridge may have at least one respective meshing recess associated with it, the meshing rib being able to engage with the respective clamping section in a positive fit in the associated meshing recess during the connection of the connecting bridge. This enables a quick and easy connection between the connecting bridge and the clamping sections.

Furthermore, it can be provided that the inner shells are held in a positive and/or non-positive fit after insertion into the respective sections, with the inner shells being able to be clamped in particular during insertion into the outer shell. As explained, an appropriate fastening element (e.g. a screw or a pin, oriented transversely to the longitudinal axis) can be used as an alternative or in addition to this.

In the case of such a double cylinder, too, after the respective inner housing has been inserted into the flange section of the associated outer housing, safety elements can be attached to the respective cylinder core in order to secure it in the axial direction, as mentioned above, the inner housing being secured against rearward axial movement relative to the respective cylinder core because the safety elements extend over a rear end face of the respective inner housing.

In the following, the invention will be described purely by way of example with the aid of an exemplary embodiment with reference to the drawings.

They show:

Figure 1 is a perspective view of a double cylinder comprising two profiled cylinders connected to each other,

Figure 2 is a sectional view of the double cylinder,

Figures 3A and 3B are perspective views of the two profiled cylinders of the double cylinder, as well as their components in the unassembled state,

Figures 4A and 4B are respective perspective views of the first profiled cylinder with the connecting bridge inserted for connecting to the second profiled cylinder,

Figures 5A and 5B are respective side perspective views of another embodiment of a profiled cylinder in the disassembled state with its components, and

Figures 6A and 6B are respective perspective views of an outer casing with an associated inner casing of another embodiment of a profiled cylinder.

1 shows a double cylinder 81 which extends along a longitudinal axis L and has a first profile cylinder 11 and a second profile cylinder 61. The profile cylinders 11 and 61 are connected to one another by a connecting bridge 59. Such a double cylinder 81 can be provided, for example, for insertion into a mortise lock of a door in order to be able to lock or unlock the door from both sides as desired. In order to be able to fix the double cylinder 81 axially with respect to the longitudinal axis L in such a mortise lock, the connecting bridge 59 has a cylinder screw bore 69, so that the double cylinder 81 inserted in the mortise lock can be prevented from being pulled out.

In order to be able to use the double cylinder 81 for locking or unlocking, for example, a door, a respective cylinder core 31 is inserted into a respective outer housing 21 of the profile cylinders 11 or 61, which is rotatably mounted in a cylindrical core receiving section 23 of the outer housing 21. In this respect, the core receiving section 23 of the outer housing 21 has an access opening 85 on a front side 27, so that the cylinder core 31 can be inserted axially with respect to the longitudinal axis L into the core receiving section 23 through this front side 27. On the front side, the cylinder core 31 is configured with an enlargement 89 (collar), which in the inserted state rests on an edge 87 formed by the core receiving section 31 of the access opening 85. By this enlargement 89 an axial movement of the cylinder core 31 with respect to the longitudinal axis L is blocked. The access openings 87 on the front sides 27 of the profile cylinders 11 and 61 further provide access to the inserted cylinder cores 31 so that a suitable key, not shown, can be inserted into the key insertion openings 75 and the cylinder cores 31 can be rotated to lock or unlock a door as desired.

For this purpose, a rotation of the cylinder cores 31 can be transmitted to a cam 73 for moving a bolt of a mortise lock. In order to prevent the outer housings 21 of the profile cylinders 11 and 61 from also rotating during the locking process and to be able to accommodate the double cylinder 81 in a mortise lock in a non-rotatable manner, the outer housings 21 also have a flange section 25 on the cylindrical core receiving section 23 which projects radially from it with respect to the longitudinal axis L. The flange sections 25 of the outer housings 21 are closed on the respective front side 27 of the profile cylinders 11 and 61 (see FIGS. 1 and 2) and open on the respective rear side 29 of the outer housings 21 (see FIGS. 3A, 3B and 5A, 5B).

In the direction of the front side 27, the cylinder cores 31 are secured axially with respect to the longitudinal axis L by respective securing rings 77, in order to be able to reliably prevent axial removal of the cylinder cores 31, in particular during a forced opening attempt (see also FIGS. 2 to 5B). These securing rings 77, which act as securing elements, are inserted in respective circumferential engagement grooves 97 of the cylinder cores 31 and rest on edges 93 of the passage openings 91 formed on the rear sides 29 of the core receiving sections 23, so that a movement of the cylinder cores 31 in the axial direction with respect to the longitudinal axis L is blocked by the respective securing ring 77 (see in particular FIGS. 4A and 4B). Therefore, in the core receiving section 23, the cylinder cores 31 are held axially fixed with respect to the longitudinal axis L, completely or on both sides, by the enlargements 89 on the one hand and the safety rings 77 on the other hand.

As shown in the sectional view in Fig. 2, the profile cylinders 11 and 61 each have six pin retainers 13, with which a rotary movement of the cylinder core 31 can be blocked in the locked state. These pin retainers 13 comprise respective core pins 15, housing pins 17 and retaining springs 19. The core pins 15 are slidably mounted in retaining channels 33 of the cylinder core 31, while the housing pins 17 and the retaining springs 19 are slidably mounted in retaining channels 37 of an inner housing 35. The inner housing 35 is axially inserted with respect to the longitudinal axis L into the flange section 25 of the respective outer housing 21 of the profile cylinder 11 or of the profile cylinder 61 (see also FIGS. 3A, 3B and 5A, 5B). To allow this axial insertion of the inner housing 35 into the flange section 25, the flange sections 25 of the outer housings 21 are open at their rear sides 29 (see Figures 3A to 5B).

In the locked position illustrated in Figure 2, the retention channels 33 of the cylinder core 31 are arranged aligned with the retention channels 37 of the inner housing 35 due to their rotational position. Due to the bias exerted by the respective retaining springs 19, the housing pins 17 protrude in this position into the retaining channels 33 of the cylinder core 31, so that rotation of the cylinder core 31 is blocked. When a suitable key is inserted into the key insertion opening 75 of the cylinder core 31, the core pins 15 and, together with them, the housing pins 17 can be displaced against the bias of the retaining springs 19, so that the housing pins 17 can be arranged precisely outside the retaining channels 33 of the cylinder core 31, without the core pins 15 protruding into the retaining channels 37 of the inner housing 35. This allows a rotary movement of the cylinder core 31 and with it the cam 73 (see FIG. 1), for example to unlock a door.

Furthermore, the inner housings 35 are firmly connected to the cylinder cores 31 in the axial direction relative to the longitudinal axis L by the engagement of the housing pins 17 in the retaining channels 33 of the respective cylinder core 31 in the locked position. As a result, the inner housings 35 can also be held axially fixed in the locked position in the flange section 25 by the extensions 89 or the retaining rings 77 described above in the above axial fixation of the cylinder cores 31 on both sides by the extensions 89 or the retaining rings 77. In addition, the retaining rings 77 extend through sections above a respective rear end face 95 of the inner housings 35, so that the inner housings 35 can be secured both indirectly by the extensions 89 of the cylinder cores 31 and directly by the retaining rings 77 in the direction of the open rear side 29 of the associated flange section 25 (see also (in particular Figures 4A and 4B). This axial fixation can prevent the inner shells 35 from being pushed out of the outer shell 21 in the direction of the open rear sides 29 or the outer shells 21 from being pulled out of the inner shells 35, in particular in an attempt to force open them.

Conversely, due to this connection between the inner housings 35 and the cylinder cores 31 by means of the pin retainers 13 in the locked position and the safety ring 77, the cylinder cores 31 are also secured in the direction of the front sides 27 of the outer housings 21 by the flange sections 25 closed therein. Attempts to remove the cylinder cores 31 from the respective access openings 85 can be made even more complicated by this additional securing by the inner housings 35.

As shown in particular in Figures 3A, 3B, 5A and 5B, in addition to the C-shaped securing rings 77, a circumferentially closed compensation ring 79 is provided for each of the cylinder cores 31 for securing the cylinder cores 31 axially in the direction of the front sides 27 of the outer housings 21 or the core receiving sections 23. By means of such an annular securing element, which is used in particular in addition to the securing rings 77, it can be achieved that the compensation rings 79 permanently extend over the rear end 95 of the inner housings 35 and independently of the rotational position of the cylinder cores 31, being secured by the axially fixed cylinder cores 31 in the direction of the open rear side 29 of the flange sections 25. In this way, possible losses of stability in a rotational position of the cylinder cores 31 can be compensated for, in the case of a rotational position of the cylinder cores 31. that the opening in the C-shaped safety rings 77 is arranged exactly in the area of the inner housings 35.

A coupling unit 71 is arranged between the cylinder cores 31 of the profile cylinders 11 and 61 (see Fig. 2). This coupling unit 71 can be used to couple the cam 73 with the profile cylinder 11 and 61, into whose cylinder core 31 a suitable key is inserted in order to be able to actuate the double cylinder 81 on both sides.

In addition to the central section, which has the cylinder screw bore 69, the connecting bridge 59 is also inserted into the respective flange sections 25 of the outer housings 21 together with the inner housings 35 and is enclosed by them. The outer housing 21 of a profiled cylinder 11 or 61 thus circumferentially encloses the cylinder core 31, the inner housing 35 and the connecting bridge insert 59, so that the aforementioned parts and in particular the pin retainers 13 can be reliably protected from external access and from force, in particular during an attempt to force them open. Due to the circumferentially closed design, the outer housings 21 can be given a high level of stability in this respect.

Furthermore, the core receiving sections 23 of the outer housings 21 are open towards the respective flange sections 25, so that the cylinder core 31 has a direct contact with an upper side 39 of the inner housing 35, which forms a support section 41 for the cylinder core 31. Therefore, the outer housings 21 do not have a dividing wall between the core receiving section 23 and the flange section 25 and the entire interior space of the outer housings 21 can be used for the arrangement of the associated cylinder core 31 as well as the corresponding inner housing 35 with the connecting bridge 59.

In order to be able to flexibly adapt such a double cylinder 81 in particular to the respective mortise locks or hardware and door leaf thicknesses, the installation of such double cylinders 81 is usually carried out at the actual location of use. In this regard, for example, spacers (not shown) can be provided which can be used between the profile cylinders 11 and 61 in order to be able to adapt the extension of the double cylinder 81 along the longitudinal axis L to a respective door. In particular, the assembly of the small-sized pin retainers 13 can be complicated and time-consuming in the case of double cylinders 81 or profile cylinders 11 and 61 of a conventional construction.

The profiled cylinders 11 and 61 disclosed herein, on the other hand, allow for a simplified and rapid assembly of the profiled cylinders 11 and 61 themselves and of the double cylinder 81 consisting of them. This is illustrated in particular with the aid of FIGS. 3A and 3B. In this connection, the assembly of the profiled cylinder 11 and its connection to the connecting bridge 59 is first described, after which the assembly of the second profiled cylinder 61 and its connection to the first profiled cylinder 11 to form the double cylinder 81 is explained. However, in principle, the assembly order of the profiled cylinders 11 and 61 can be freely selected and the individual assembly steps can also be carried out in a different order than that described here.

In this respect, the assembly of the profiled cylinder 11 can be started by inserting the core pins 15 on the outside of the outer housing 21 into the retaining channels 33 of the cylinder core 31. The cylinder core 31 can then be inserted through the front side 27 of the outer housing 21 axially with respect to the longitudinal axis L into the core receiving section 23, so that the cylinder core 31 is received directly on the inner surface of the core receiving section 23. In this respect, the cylinder core 11 can be inserted in a pivotal position in which the openings of the retaining channels 33 are blocked by an inner surface of the core receiving section 23, so that the inserted core pins 15 cannot fall out of the retaining channels 33. The inserted cylinder core 31 can then be secured by the securing ring 77 and a compensation ring 79 axially with respect to the longitudinal axis L in the core receiving section 23.

The retaining springs 19 and the housing pins 17 can also be inserted from above into the retaining channels 37 of the inner housing 35 on the outside of the outer housing 21. According to the invention, the retaining channels 37 are closed by the inner housing 35 on a lower side opposite the upper side 39 of the inner housing 35, so that the inserted retaining springs 19 and housing pins 17 cannot fall out of the inner housing 35.

The inner housing 35 furthermore has a respective anti-drill slot 53 on two outer sides 51, which extends along an anti-drill axis B running perpendicular to the longitudinal axis L (see FIGS. 3A and 3B and FIGS. 5A and 5B). In this respect, the anti-drill slot 53 is closed by the inner housing 35 at two ends opposite to the anti-drill axis B, so that an anti-drill pin (not shown) can be inserted laterally into the anti-drill slot 53 in order to prevent the respective profile cylinder 11 or 61 from being drilled open in an attempt to force it open.

For connection to the connecting bridge 59, the inner housing 35 is designed with a holding section 57, by means of which the connecting bridge 59 can be held axially with respect to the longitudinal axis L in the inner housing 35. For this purpose, the holding section 57 has two meshing ribs 63, which are adapted for positive-fitting engagement in respective meshing recesses 65 formed in the connecting bridge 59 (see FIGS. 3A and 5A). The connecting bridge 59 has four respective meshing recesses 65 on both sides for connection to the inner housings 35 of the profile cylinder 11 or 61, so that the part of the connecting bridge 59 that projects axially with respect to the longitudinal axis L beyond the inner housing 35 can be flexibly adjusted. This may allow in particular to insert spacers (not shown) between the profile cylinders 11 and 61, in order to be able to adapt the extension of the double cylinder 81 to the respective thickness of the fittings or the door leaf.

In this way, during the assembly of the profile cylinders 11 and 61 or the double cylinder 81, the retaining springs 19, the housing pins 17, two anti-drill pins as well as the connecting bridge 59 with the inner housing 35 can be connected to the outside of the outer housing 21. In particular, the insertion of the retaining springs 19 and the small-sized housing pins 17 can thus be carried out conveniently, without spatial limitations and therefore in a simplified and accelerated manner.

In the first embodiment, the profile cylinders 11 or 61 shown in FIGS. 1 to 5B have flange sections 25 with respectively closed front sides 27, open rear sides 29 and closed bottom sides 83. This makes it possible to insert the arrangement consisting of the inner housing 35 with retaining springs 19 and inserted housing pins 17, with anti-drill pins inserted into the anti-drill channels 53, and the connecting bridge 59 connected to the clamping section 35 axially with respect to the longitudinal axis L via the open rear side 29 of the outer housing 21 into the flange section 25 of the first profile cylinder 11.

During this axial insertion of the inner housing 35 into the flange section 25, it is only necessary to press the housing pins 17 displaced by the retaining springs 19 outside the retaining channels 37 of the inner housing 35 against this pretension into the retaining channels 37 in order to prevent the housing pins 17 from abutting the already inserted cylinder core 31 and to counteract the resulting blocking of the inner housing 35. In order to facilitate the insertion of the inner housing 35 into the flange section 25 and to secure the inner housing 35 in the radial direction with respect to the longitudinal axis L in the flange section 25, the flange section 25 has a guide 47 configured as a recess or a groove, which interacts with a counter guide 49 configured as an elevation on the inner housing 35. The closed front side 27 of the flange section 25 can also form a stop for the inner housing 35. The inner housing 35 can be inserted so that its correct positioning can be easily detected haptically. Furthermore, it can be provided that the inner housing 35 is held in a positive and/or non-positive fit in the outer housing 21 after it has been inserted into the flange section 25, for which the inner housing 35 can be tamped in particular during insertion. Furthermore, grooves or undercuts can be provided in the inner housing 35, for example, into which the outer housing 21 is pressed in order to establish or reinforce a non-positive and/or positive fit connection between the inner housing 35 and the outer housing 21. By means of such a connection, the inner housing 35 can be fixed in the outer housing 21 immediately after it has been inserted.

As an alternative to such an axial insertion of the inner housing 35 relative to the longitudinal axis L of the inner housing 35 into the flange section 25 via the rear side 29 of the outer housing 21, it can also be provided to design the outer housing 21 and the inner housing 35 with guides 47 or counter guides 49 which run in such a way that the insertion of the inner housing 35 via the open rear side 29 can take place from a direction which runs inclined or obliquely relative to the longitudinal axis L. For example, the guides 47 configured as slots in the outer housing 21 can run obliquely upwards from the closed front side 27 of the flange section 25 in the direction of the open rear side 29, so that the inner housing 21 can be inserted into the flange section 25 from an upper oblique point via the rear side 29 of the outer housing 21.

Furthermore, the outer housing 21 or its flange section 25 has a recess 67 adjoining the rear side 29, into which the clamping section 57 of the inner housing 35 engages with a positive fit in the inserted state (see in particular FIGS. 1 and 4B). This recess 67 makes it possible to create sufficient space in the interior of the flange section 25 for the reception of the connecting bridge 59, while the positive-fitting engagement of the clamping section 57 closes the recess 67 with a precise fit.

After complete insertion of the inner housing 35, the cylinder core 31 can be rotatably moved, for example by a suitable key or tool, to align the retaining channels 33 of the cylinder core 31 with the retaining channels 37 of the inner housing 35, so that the housing pins 17 engage the retaining channels 33 of the cylinder core 31 (see Figure 2).

Figures 4A and 4B show respective side perspective views of the first fully assembled profiled cylinder 11. In this respect, this profiled cylinder 11 is already securely connected to the connecting bridge 59, which projects axially from the outer housing 21 with respect to the longitudinal axis L. Furthermore, Figure 4B shows in particular the positive-fitting engagement of the clamping section 57 of the inner housing 35 in the recess 67 of the outer housing 21.

In order to assemble the double cylinder 81 completely, the second profile cylinder 61 can be assembled in the manner described above, with the cylinder core 31 with the core pins 15 inserted through the front side 27 being first inserted axially with respect to the longitudinal axis L into the core receiving section 23 of the outer housing 21. The retaining springs 19 and the housing pins 17 can in turn be inserted into the retaining channels 37 of the inner housing 35 and the anti-drill pins can be inserted into the anti-drill channels 53. Subsequently or alternatively before the insertion of the mentioned parts, the inner housing 35 can be connected with the connecting bridge 59 which is already connected to the first profile cylinder 11, the engagement ribs 63 being brought into positive engagement with the engagement recesses 65. The inner housing 35 of the second profile cylinder 61 can then also be inserted. The coupling unit 71 and the cam 73 can be connected to the first profile cylinder 11 or its cylinder core 31 before or during insertion of the inner housing 35 of the second profile cylinder 61, so that after insertion of the inner housing 35 of the second profile cylinder 61, the coupling unit 71 and the cam 73 are also connected to the cylinder core 31 of the latter. The double cylinder 81 can thus be completely assembled by simply pushing the two profile cylinders 11 and 61 axially together.

5A and 5B show side perspective views of a further embodiment of the profile cylinder 11 or its inner housing 35. This inner housing 35 is configured in two parts and has a first inner housing part 43 and a second inner housing part 45. During the assembly of this profile cylinder 11, the two inner housing parts 43 and 45 can be joined together along a parting plane in which the longitudinal axis L runs before the retaining springs 19 and the housing pins 17 are inserted. Assembly can then be carried out in the manner described above and also extremely easily and quickly.

The configuration of the profile cylinders 11 and 61 with an outer housing 21 open at a rear side 29, through which the inner housing 35 can be inserted axially with respect to the longitudinal axis L, can therefore allow a simple and rapid assembly of both the profile cylinders 11 and 61 themselves and their joining to form a double cylinder 81. In particular, this allows the small-sized core pins 15, housing pins 17 and retaining springs 19 to be inserted into the cylinder core 31 or the inner housing 35 on the outside of the outer housing 21, so that the normally time-consuming assembly steps of the pin retainers 13 can be simplified and thus accelerated. Furthermore, the outer casing 21 and the inner casing 35 can be made of different materials, whereby the outer casing 21 in particular can be made of steel and the inner casing 36 in particular can be made of zinc die-casting. As a result, the production and manufacturing of the outer casing 21 and the inner casing 35 can also be carried out in the simplest possible manner, taking into account the respective requirements of the parts mentioned.

As shown in Figures 6A and 6B, in the second embodiment it is provided that the outer housing 21 of a profile cylinder 11 has, in addition to the open rear side 29, an open lower side 83, through which the inner housing 35 can be inserted axially with respect to a transverse axis Q running perpendicular to the longitudinal axis L in the flange section 25. As in the embodiments described above and illustrated in Figures 1 to 5B, a cylinder core 31 not shown in Figures 6A and 6B with core pins 15 inserted axially with respect to the longitudinal axis L can first be inserted into the core receiving section 23 of the outer housing 21. Then, the retaining springs 19 and the housing pins 17 can be inserted into the outside of the outer housing 21 from above into the retaining channels 37 of the inner housing 21 and can be inserted together with the retaining springs 19 and the housing pins 17. the inner housing 21 by a simple linear movement across the underside 83 in the flange section 25. The housing pins 17 protruding from the retaining channels 37 can in this case be automatically displaced backwards by the insertion and pressure of the inner housing 21 onto the inserted cylinder core 31.

In this embodiment, too, a guide 47 is provided in the outer housing 21, which is configured as a slot extending along the transverse axis Q and which interacts with a rib-like counter-guide 49 of the inner housing 35 in order to achieve a controlled insertion into the flange section 25. As an alternative to such an insertion along the transverse axis Q, it can be provided that the guide 47 and the counter-guide 49 run at an acute angle to the transverse axis Q or at an inclination to the longitudinal axis L in order to be able to insert the housing 35, for example, obliquely from the direction of the rear side 29 of the outer housing 21 through its open underside 83 into the flange section 25.

In addition, the outer housing 35 in turn has a clamping section 57 with engagement ribs 63 for a positive-fit connection to a connecting bridge 59. This clamping section 57 is also designed to engage in a recess 67 provided for this purpose in the outer housing 21. Furthermore, the inner housing 21 is adapted to the outer housing 35 in such a way that the inner housing 21 closes both the open underside 83 of the flange section 25 and also the recess 67 with such a fit accuracy that the external shape of the profile cylinder 11 can exactly meet the requirements of DIN 18252 in the assembled state.

List of references

11 Profiled cylinder

13 Pin Retention

15 Core pin

17 Housing pin

19 Retaining spring

21 Outer casing

23 Core receiving section

25 Flange Section

27 Front side

29 Back side

31 Cylinder core

33 Cylinder core retention channel

35 Inner casing

37 Inner housing retention channel

39 Upper side of the inner casing

41 Support Section

43 First part of the inner casing

45 Second part of the inner casing

47 Guide

49 Counterguide

51 Outer side of the inner casing

53 Drill protection slot

57 Clamping section

59 Union Bridge

61 Second profiled cylinder

63 Gear rib

65 Gear recess

67 Notch

69 Drill for cylinder screw

71 Coupling unit

73 Cam

75 Opening for inserting the key

77 Safety ring

79 Compensation ring

81 Double cylinder

83 Bottom side

85 Access opening

87 Edge of access opening

89 Widening

91 Passage opening

93 Edge of the passage opening

95 Front side of the inner casing

97 Gear slot

B Anti-drill shaft

L Longitudinal axis

Q Transverse axis

Claims (15)

1. Profiled cylinder (11), extending along a longitudinal axis (L), with: - at least one pin retainer (13), comprising a core pin (15), a housing pin (17) and a retaining spring (19); - an outer housing (21) having an essentially hollow cylindrical core receiving section (23) and a flange section (25) projecting radially from the core receiving section (23) with respect to the longitudinal axis (L), the flange section (25) being closed at a front side (27) of the outer housing (21); - a cylinder core (31), which is rotatably mounted in the core receiving section (23) of the outer housing (21) and which has at least one retention channel (33) in which the respective core pin (15) is received; and - an inner housing (35), which has at least one retention channel (37), in which the respective retention spring (19) and the respective housing pin (17) are housed, the flange section (25) being open at a rear side (29) of the outer housing (21) and the inner housing (35) being inserted through the rear side of the outer housing (21) into the flange section (25), in particular along the longitudinal axis (L) or along a direction running inclined to the longitudinal axis (L); either the flange section (25) being open on a lower side (83) of the outer housing (21) and the inner housing (35) being inserted through the lower side (83) of the outer housing (21) into the flange section (25), in particular along a transverse axis (Q) perpendicular to the longitudinal axis (L) or along a direction running inclined to the transverse axis (Q), characterized in that The at least one retaining channel (37) of the inner housing (35) is closed by the inner housing (35) on a lower side not facing the cylinder core (31), so that the respective retaining spring (19) housed therein and the respective housing pin (17) housed therein cannot fall out of the inner housing (35). 2. Profile cylinder (11) according to claim 1, the outer casing (21) being closed circumferentially at least along a part of its longitudinal extension with respect to the longitudinal axis (L). 3. Profile cylinder (11) according to claim 1 or 2, the inner casing (35) bordering the cylinder core (31) on an upper side (39) facing the cylinder core (31); the upper side (39) of the inner casing (35) preferably forming a support section (41) for rotatably supporting the cylinder core (31), the support section (41) being bulged in a concave cylindrical shape; I the retention channels (37) of the inner casing (35) preferably being open on the upper side (39) of the inner casing (35). 4. Profile cylinder (11) according to one of the preceding claims, the inner housing (35) having a closed bottom on the underside, on which the respective retaining spring (19) rests. 5. Profile cylinder (11) according to one of the preceding claims, the inner casing (35) being configured in one piece; either the inner housing (35) being configured in two parts and having a first inner housing part (43) and a second inner housing part (45), which sit against each other along a parting plane. 6. Profile cylinder (11) according to one of the preceding claims, the outer casing (21) having at least one guide (47) for guiding the inner casing (35) during insertion into the flange section (25), the inner casing (35) having a counter-guide (49) complementary to the guide (47); and/or the inner casing (35) being held in place with a non-positive and/or positive fit in the outer casing (21). 7. Profile cylinder (11) according to one of the preceding claims, the core receiving section (23) having an access opening (85) on the front side (27) of the outer housing (21) and forming a front edge (87) of the access opening (85), the cylinder core (31) having a front widening (89) which rests on the front edge (87) of the access opening (85), and the core receiving section (23) having a through opening (91) on the rear side (25) of the outer housing (21) and forming a rear edge (93) of the through opening (91), at least one securing element (77, 79) being provided which is connected to the cylinder core (31) in an axially fixed manner with respect to the longitudinal axis (L), the securing element (77, 79) resting at least partially on the rear edge (93) of the through opening (91) and/or passing at least partially over a rear front side (95) of the inner casing (35). 8. Profile cylinder (11) according to one of the preceding claims, at least one anti-drill slot (53) for receiving an anti-drill pin (55) extending along an anti-drill axis (B) oriented perpendicularly to the longitudinal axis (L) being configured on an outer side (51) of the inner housing (35), the inner housing (35) forming a delimitation of the anti-drill slot (53) at a first end and/or at a second end with respect to the anti-drill axis (B). 9. Profile cylinder (11) according to one of the preceding claims, the outer casing (21) and the inner casing (35) being made of different materials; the inner casing (35) being made in particular of die-cast zinc and/or the outer casing (21) being made in particular of hardenable steel. 10. Profile cylinder (11) according to one of the preceding claims, the inner housing (35) having a clamping section (57), which is designed to positively clamp a connecting bridge (59) for connecting the profiled cylinder (11) with a connecting element, in particular another profiled cylinder (11), in the axial direction with respect to the longitudinal axis (L). 11. Profiled cylinder (11) according to claim 10, the clamping section (57) of the inner housing (35) having at least one gear rib (63) oriented transversely with respect to the longitudinal axis (L), which meshes with a positive fit in a gear recess (65) formed in the connecting bridge (59); I the flange section (25) of the outer housing (21) having a circumferential recess (67) which is open towards the rear side (29) of the outer housing (21), into which the clamping section (57) of the inner housing (35) engages with a positive fit. 12. Double cylinder with a first profile cylinder (11) and a second profile cylinder (11), which are each designed according to one of the preceding claims, and with a connecting bridge (59), the first profile cylinder (11) and the second profile cylinder (11) being connected to one another by means of the connecting bridge (59), the connecting bridge (59) being held in the axial direction by a respective clamping section (57) of the inner housings (35) of the profile cylinders (11). 13. Method for assembling a profiled cylinder (11) according to one of claims 1 to 11, with the steps: - inserting the respective core pin (15) into the at least one retaining channel (33) of the cylinder core (31); - inserting the cylinder core (31) axially with respect to the longitudinal axis (L) of the profiled cylinder (11) into the core receiving section (23) of the outer housing (21), in particular via its front side (27); - inserting the respective retaining spring (19) and the respective housing pin (17) into the at least one retaining channel (37) of the inner housing (35); and - inserting the inner housing (35) into the flange section (25) of the outer housing (21) via its rear side (29), in particular along the longitudinal axis (L) of the profiled cylinder (11) or along a direction running inclined to the longitudinal axis (L); or inserting the inner housing (35) into the flange section (25) of the outer housing (21) through its lower side (83), in particular along a transverse axis (Q) perpendicular to the longitudinal axis (L) or along a direction running inclined to the transverse axis (Q). 14. Method according to claim 13, after insertion of the inner housing (35) into the flange section (25) of the outer housing (21) at least one securing element (77, 79) is joined in an axially fixed position with respect to the longitudinal axis (L) with the cylinder core (31), the securing element (77, 79) extending at least partially over a rear end face (95) of the inner housing (35), thereby securing the inner housing (35) against rearward axial movement with respect to the cylinder core (31). 15. Method for assembling a double cylinder according to claim 12, with the steps: - inserting the respective core pin (15) into the at least one retaining channel (33) of the cylinder core (31) of the first profiled cylinder (11), - inserting the cylinder core (31) axially with respect to the longitudinal axis (L) of the first profiled cylinder (11) into the core receiving section (23) of the outer casing (21) of the first profiled cylinder (11), in particular through its front side (27); - inserting the respective retaining spring (19) and the respective housing pin (17) into the at least one retaining channel (37) of the inner housing (35) of the first profiled cylinder (11); - connecting the connecting bridge (59) with the clamping section (57) of the inner casing (35) of the first profiled cylinder (11), - inserting the arrangement consisting of the inner housing (35) of the first profiled cylinder (11) and the connecting bridge (59) into the outer housing (21) of the first profiled cylinder (11) via its rear side (29), in particular along the longitudinal axis (L) of the first profiled cylinder (11) or along a direction running at an angle to the longitudinal axis (L) of the first profiled cylinder (11); or inserting the arrangement consisting of the inner housing (35) of the first profiled cylinder (11) and the connecting bridge (59) into the outer housing (21) of the first profiled cylinder (11) via its lower side (83), in particular along a transverse axis (Q) perpendicular to the longitudinal axis (L) or along a direction running at an angle to the transverse axis (Q); - inserting the respective core pin (15) into the at least one retention channel (33) of the cylinder core (31) of the second profiled cylinder (61); - inserting the cylinder core (31) axially with respect to the longitudinal axis (L) of the second profiled cylinder (61) into the core receiving section (23) of the outer casing (21) of the second profiled cylinder (61), in particular through its front side (27); - inserting the respective retaining spring (19) and the respective housing pin (17) into the at least one retaining channel (37) of the inner housing (35) of the second profiled cylinder (61); - connecting the connecting bridge (59) with the clamping section (57) of the second inner casing (35); and - inserting the arrangement consisting of the inner housing (35) of the second profiled cylinder (61) and the connecting bridge (59) into the outer housing (21) of the second profiled cylinder (61) via its rear side (29), in particular along the longitudinal axis (L) of the second profiled cylinder (61) or along a direction running at an angle to the longitudinal axis (L) of the second profiled cylinder (61); or inserting the arrangement consisting of the inner housing (35) of the second profiled cylinder (61) and the connecting bridge (59) into the outer housing (21) of the second profiled cylinder (61) via its lower side (83), in particular along a transverse axis (Q) perpendicular to the longitudinal axis (L) or along a direction running at an angle to the transverse axis (Q).