EP2607577A2 - Cylinder lock - Google Patents

Abstract

The cylinder lock (1) has a cylinder housing (2) having a cylinder bore (3), in which a cylinder (4) is rotatably received. The cylinder has a key hole for receiving a key bit (18) of a key (17). The cylinder has multiple lower channels, in which lower pins (7) are movably arranged. The cylinder housing has multiple upper channels with movably arranged upper pins (20). The cylinder housing comprises a contact surface and a closure element (9) of another contact surface to attain engagement with the former contact surface. The interlocked surface serves as support for a spring element (8).

Description

The invention relates to a cylinder lock with a cylinder housing, comprising a cylinder bore, in which a cylinder is rotatably received, wherein the cylinder has a keyhole for receiving a key bit of a key. The cylinder has a plurality of lower channels in which lower pins are movably arranged, and the cylinder housing has a plurality of upper channels in which upper pins are movably arranged, wherein the lower channels can be arranged on a rotation of the cylinder in alignment with the upper channels , wherein both the lower channels and the upper channels extend perpendicular to the cylinder axis. The lower pins are configured to interact with the key bit which is inserted into the keyhole, and in each upper channel a spring element is arranged to exert a force on the upper pins toward the lower pins. The cylinder lock further includes a closure member releasably secured to the cylinder housing to cover the openings of the upper channels facing away from the cylinder to provide a stop for the spring members.

A cylinder lock as described above is known from EP 0 403 551 B1 known. Cylinder locks, as referred to in this document, have a cylinder housing with a cylinder bore in which a cylinder is rotatably received, wherein the rotation is manually applied by a key which is inserted into the cylinder. The key bit of the key can interact with a plurality of movably arranged pins, the pins having different lengths. The rotation of the cylinder within the cylinder bore may be exercised when the key bit corresponds to the length of the pins. The pins are movably arranged in the channels of the cylinder housing and the cylinder. Each pin is biased by a spring element to press the pins toward the key bit. The channels in the cylinder housing have openings which are remote from the cylinder, wherein the pins and the spring elements can be inserted through the openings in the channels. After insertion of the pins and the spring elements, the channels must be covered by a closure element, each channel having a single plug which is pressed into the opening of the channel. The plugs, which are pressed into the openings of the channels are formed as cylindrical press-graft, which are pressed by means of a press fit into the channels. After pressing the press plugs into the channels, the plugs of the channels can not be removed.

While the plugs in the mold can be forcibly removed as a press-plug, it would not be possible to repeatedly change the specification of closure to repeatedly open the channels to change pins. In particular, when the cylinder lock is used as an end-user locking system, the key systems are often designed as general key systems with different key levels, for example, a multi-person company building authorized to enter multiple rooms and with different access permissions, such as a managing director , a department head or a group leader who only have permission to enter a certain number of rooms. When the number of key levels within the General Key System must be changed or a key is lost, new key systems are often required.

Another cylinder lock is in the DE 10 2007 051 427 A1 disclosed. The cylinder housing of the cylinder lock has a recess which is disposed adjacent to the openings of the channels. To provide a stop for the spring elements, which are movably arranged in the channels of the cylinder housing, a closure element in the Groove be attached. In order to secure the closure element in the recess of the cylinder housing to cover the openings of the channels, the closure element in a direction which is parallel to the axis of the channels, must be inserted into the recess. After insertion of the closure element into the depression, the closure element in the depression must be manually retained by an installer while the installer must fasten the closure element with a screw element from another direction. This means that the installer must screw a fixing screw from one side of the cylinder housing, which is perpendicular to the insertion direction of the closure element, while the installer must hold the closure element in the recess. This is difficult because the fastening screw must come into contact with certain parts of the closure element in order to realize a secure attachment of the closure element in the recess.

Therefore, the invention has the object to avoid at least parts of the aforementioned disadvantages. In particular, it is an object of the present invention to provide a cylinder lock according to the preamble of claim 1, which allows a simple, safe and quick change of the closure element of the cylinder lock to allow easy adaptation of the cylinder lock to a new or modified general locking system.

The solution of the aforementioned object is achieved by a cylinder lock with the features of claim 1 of the present invention. Advantages, features, details, aspects and effects of the invention will become apparent from the subclaims, the description and the figures.

The aforementioned object is achieved by a cylinder lock with a cylinder housing having a cylinder bore in which a cylinder is rotatably received. The cylinder has a keyhole for receiving a key bit of a key. The cylinder points Further, a plurality of lower channels, in which lower pins are arranged movable, and the cylinder housing has a plurality of upper channels, in which upper pins are arranged to be movable, wherein the lower channels can be arranged on a rotation of the cylinder in alignment with the upper channels and wherein Both the lower channels and the upper channels extend perpendicular to the cylinder axis. The lower pins are configured to interact with the key bit that is inserted into the keyhole. In each upper channel a spring element is arranged to exert a force on the upper pins in the direction of the lower pins. The cylinder lock further includes a closure member releasably secured to the cylinder housing to cover the openings of the upper channels facing away from the cylinder to provide a stop for the spring members. The cylinder lock is characterized in that the cylinder housing first contact surfaces and the closure element have second contact surfaces to slidably engage with the first contact surfaces, wherein the interlocking surfaces serve as a support for the spring elements.

Such a cylinder lock allows a simple, safe and quick change of the locking element of the cylinder lock to allow easy adaptation of the cylinder lock to a new or modified general key system. The mounting and dismounting of the closure element can be carried out very easily. An installer can realize the mounting and dismounting of the closure element only from one side of the cylinder lock. Furthermore, the cylinder lock allows the installer to make the replacement of the closure element when required due to limited installation space, with only one hand.

The cylinder housing of the cylinder lock has first contact surfaces. Furthermore, the closure element has second contact surfaces. The second contact surfaces of the closure element engage with the first Contact surfaces of the cylinder housing into each other when the closure member slides on the first contact surfaces of the cylinder housing. After the intermeshing of the first contact surfaces of the cylinder housing and the second contact surfaces of the closure element, the interlocking surfaces serve as a support for the spring elements. That is, the mating contact surfaces of both the cylinder housing and the closure member serve to support the force exerted by the spring members on the closure member during actuation of the cylinder lock.

Advantageously, the closure element provides a stop for the spring elements directly after engagement with the first contact surfaces of the cylinder housing. After engagement of the first contact surfaces of the cylinder housing, the closure element, in particular the second contact surfaces of the closure element, in conjunction with the first contact surfaces of the cylinder housing is a stop for the spring elements which are movably arranged in the upper channels of the cylinder housing. After the sliding engagement of the first contact surfaces of the cylinder housing, the closure element is positively fixed in all directions, except in the sliding direction. Therefore, the shutter member provides a stop for the spring members because the direction of the force of the spring members is opposite to the sliding direction of the shutter member on the first contact surfaces of the cylinder housing. After the engagement of the first contact surfaces of the cylinder housing and the second contact surfaces of the closure element, the surfaces can exert a counterforce to the force of the spring elements when a key is inserted into the cylinder. After the intermeshing of the first contact surfaces of the cylinder housing and the second contact surfaces of the closure element, the force of the spring elements can press the second contact surfaces against the first contact surfaces. Therefore, a frictional connection between the first and second contact surfaces can be established when a key is inserted into the cylinder. The force of the spring elements ensures that the Closure element is retained at the first contact surfaces of the cylinder housing when a key is inserted into the cylinder. After the sliding engagement of the surfaces of the cylinder housing and the closure element, the closure element has a stable position on the cylinder housing.

According to a preferred development of the invention, a cylinder lock may be provided, wherein the first contact surfaces extend perpendicular or approximately perpendicular to the axis of the upper channels. Such an arrangement of the first contact surfaces in conjunction with the second contact surfaces allows the closure element to be fixed in all directions, in particular in the direction of the force which can be exerted by the spring elements on the closure element, except for the direction perpendicular or approximately perpendicular to the force of the spring elements. Such a cylinder lock allows easy and quick replacement of the pins of the cylinder lock, since the closure element can be replaced easily and quickly.

Preferred is a cylinder lock, which is characterized in that the first contact surfaces are part of at least one longitudinal groove or part of at least one projection, in particular a longitudinal projection of the cylinder housing. Accordingly, the second contact surfaces of the closure element are advantageously part of at least one longitudinal groove or part of at least one projection, in particular a longitudinal projection, of the closure element. Such a construction of the cylinder housing and the closure member allows the closure member to easily slide on the first contact surfaces of the cylinder housing. The first contact surfaces, which are part of at least one longitudinal groove or part of at least one projection, in particular a longitudinal projection, of the cylinder housing form a companion rail for the closure element. The corresponding second contact surfaces of the closure element are advantageously part of at least one longitudinal groove or part of at least one projection, in particular one Longitudinal projection, of the closure element. It may be preferred if the first contact surfaces are formed by two parallel grooves or by two parallel longitudinal projections of the cylinder housing. Likewise, it may be preferred if the second contact surfaces are formed by two parallel grooves or by two parallel longitudinal projections of the closure element. Such a cylinder housing and such a closure element allow a simple, fast and secure engagement of the closure element to the cylinder housing.

According to a preferred development of the invention, a cylinder lock can be provided, wherein the first contact surfaces are part of a wall of a recess in the cylinder housing. Such a cylinder lock allows the shutter member to be easily disposed in the cylinder housing. Advantageously, the contour of the recess corresponds to at least a main part of the closure element, in particular the entire closure element. In particular, a cylinder lock is preferred, wherein the recess and at least the main part of the closure element are matched to one another such that at least the main part fits in a form-fitting manner into the depression. After engaging in the recess of the cylinder housing, the closure element seems to be part of the cylinder housing of the cylinder lock.

Such a cylinder lock allows the closure element to be removed very easily and quickly, and the pins can be changed with a new pin specification without having to change the entire cylinder lock. The adjustment of the cylinder lock can be done by the manufacturer or, for example, in locks by a janitor or the end user itself. Such a removable closure element for covering channels in which the pins are movably guided is applicable to any known type of cylinder housing. It is possible that a closure element is provided for each upper channel of the cylinder housing. This means that only a single closure element can cover all openings the upper channels are needed or the number of shutter elements corresponds to the number of upper channels.

Further, a cylinder lock may be preferred, which is characterized in that a fixing element for releasably securing the closure element to the cylinder housing, in particular in the recess of the cylinder housing, is provided. Such a fixing element ensures that the closure element is secured in all directions to the cylinder housing. In particular, the fixing element ensures that the closure element is fixed against the sliding direction of the closure element. The closure element can be fixed very easily and quickly by the fixing because the installer can focus on the attachment of the fixing. The installer does not have to hold the closure member to the cylinder housing for fixing the fixing member to the cylinder housing. The fixation of the fixing element on the cylinder housing represents a very secure attachment of the closure element to the cylinder housing, in particular in the recess of the cylinder housing.

The fixing element may be any type of fixing agent. A cylinder lock is preferred, wherein the fixing element is a latching element, in particular a latching hook, on the closure element for engagement with a corresponding latching element of the cylinder housing. Such a fixing element ensures on the one hand a secure fixing of the closure element to the cylinder housing and on the other hand, a quick and easy release of the fixing of the cylinder housing safely. The fixing element may be designed such that the fixing element can be easily released while exerting a certain pressure on the closure element.

According to a particularly preferred development of the invention, a cylinder lock may be provided, wherein the fixing element is a fixing screw, wherein the closure element has a bore, in particular a threaded bore, and wherein the cylinder housing has a threaded bore for receiving the fixing screw, which is guided through the bore of the closure element. Such a fixing screw ensures a very good attachment of the closure element to the cylinder housing, in particular in the recess of the cylinder housing, the cylinder lock. Furthermore, such a fixing screw can be easily and quickly released to allow easy replacement of the pins of the cylinder lock. A preferred type of screw can be seen in a grub screw with the grub screw received in the threaded bore in the cylinder housing. Therefore, a threaded hole is provided in the cylinder housing, which is intended to receive the grub screw. According to a preferred development, the threaded bore extends parallel to the keyhole direction, wherein the access of the threaded bore is arranged on the opposite side with respect to the insertion side of the key. This arrangement leads to increased security of the cylinder lock, since the fixing element, which is preferably a grub screw, is not accessible from the outside of the Zyiinderschlosses, which is installed for example in a door.

According to a further preferred development of the invention, a cylinder lock can be provided, wherein the closure element has an L-shaped contour, comprising a main part and a head, which is arranged inclined to the main part. Such an L-shaped closure member may define together with the cylinder housing a stop position for the closure element during the sliding of the closure element on the first contact surfaces. Advantageously, the cylinder housing has a stop part for defining a stop position for the closure element during the sliding of the closure element onto the first contact surfaces. The head of the L-shaped closing element can be stopped by the stopper part of the cylinder housing to stop the sliding of the closure element. It is advantageous if only the main part of the closure element, which is more preferred Way has a plate-like shape, is designed to cover the opening gene of the channels of the cylinder housing.

Further, a cylinder lock is preferred, wherein the bore, in particular the threaded bore, of the closure element is arranged in the head of the closure element, in particular parallel to the cylinder axis. Such an L-shaped closure element in conjunction with a corresponding cylinder housing allows the head of the L-shaped closure element to be stopped by the stop element of the cylinder housing and a fixing screw to be passed through the bore in the head and into the threaded bore of the cylinder housing, in particular one Cylinder bore in the stop element of the cylinder housing, can be screwed.

According to a further preferred development of the invention, a cylinder lock can be provided which is characterized in that the upper channels are positioned parallel to one another in a row in the cylinder housing and the lower channels are positioned parallel to one another in a row in the cylinder. The row of upper channels and the row of lower channels can be aligned by rotation of the cylinder in the cylinder bore of the cylinder lock. Preferred is a cylinder lock having four or more upper channels and four or more corresponding lower channels. The more channels are provided, the better the safety of the cylinder lock.

Further, a cylinder lock is preferred, wherein the cylinder housing, in particular the recess has a sealing element for sealing the closure element in the cylinder housing, in particular in the recess. Such a sealing element ensures that no dirt or fluid can get into the cylinder housing and therefore into the channels of the cylinder lock. The sealing element allows the cylinder lock to be kept free from contamination. The sealing element or another sealing element may be arranged such that the sealing element seals the openings of the upper channels, which terminate at the cylinder housing wall or the recess of the cylinder housing. The sealing element may be formed as a sealing ring, as a sealing mat or as Dichtungspfropfen.

Advantageously, the cylinder housing is designed with a recess which corresponds to the shape of the closure element. This leads to an outer surface of the cylinder housing, which is not interrupted by an edge of the closure element. The outer shape of the closure element is adapted to the outer shape of the cylinder housing. Therefore, the outer surface of the closure member has a flat and flush transition into the outer surface of the cylinder housing. Accordingly, the cylinder lock can be easily inserted into a suitable holder, for example inside a door that needs to be closed. The outer contour of the cylinder housing describes the shape of the outer contour of the closure element. The closure member and the recess in the cylinder housing may have a rectangular, elliptical or elongated shape.

Figur 1

zeigt ein Zylinderschloss aufweisend eine Vertiefung für ein Verschlusselement in einer Seitenansicht, welches gemäß dem erfindungsgemäßen Konstruktionsprinzip ausgebildet ist,

Figur 2

zeigt das Zylinderschloss aus Fig. 1 in einer perspektivischen Ansicht,

Figur 3 - 5

zeigen verschiedene Ansichten eines Verschlusselementes eines Zylinderschlosses,

Figur 6

zeigt eine explodierte Ansicht eines Zylinderschlosses gemäß den Fig. 1 und 2, und

Figur 7

zeigt eine weitere Seitenansicht des Zylinderschlosses gemäß Fig. 1 und 2.

In the following, the present invention will be described by examples of the invention with reference to the accompanying drawings, in which:

FIG. 1

shows a cylinder lock having a recess for a closure element in a side view, which is designed according to the construction principle according to the invention,

FIG. 2

shows the cylinder lock Fig. 1 in a perspective view,

Figure 3 - 5

show different views of a closure element of a cylinder lock,

FIG. 6

shows an exploded view of a cylinder lock according to the Fig. 1 and 2 , and

FIG. 7

shows a further side view of the cylinder lock according to Fig. 1 and 2 ,

Elements with the same function and mode of action are in the FIGS. 1 to 7 provided with the same reference numerals.

Fig. 1 schematically shows a cylinder lock 1 comprising a recess 12 for a closure element 9 in a side view, which is formed according to the inventive design principle. The cylinder lock 1 has a cylinder housing 2, which is elliptical-like. The cylinder housing 2 has a cylinder bore 3, which extends through the entire length of the cylinder housing 2. In the cylinder bore 3, a cylinder 4 is rotatably received. The cylinder 4 has a keyhole for receiving a key bit of a key. The key 17 and the key bit 18 are for example in Fig. 6 shown. The cylinder 4 has six lower channels 25 in which lower pins 7 are movably arranged, see, for example Fig. 7 , The cylinder housing 2 further has six upper channels 6, in which upper pins 20 are movably arranged, wherein the lower channels 25 can be arranged by rotation of the cylinder 4 in alignment with the upper channels 6. Both the lower channels 25 and the upper channels 6 extend perpendicular to the cylinder axis 5, wherein the lower pins 7 for interacting with the key bit, which is inserted into the keyhole, formed, and wherein in each upper channel 6, a spring element is arranged to exert a force on the upper pins 20 in the direction of the lower pins 7. The cylinder lock 1 further includes a closure member detachably secured to the cylinder housing 2 to cover openings of the upper channels 6 facing away from the cylinder 4 to provide a stop for the spring members. The lower pins 7, the upper pins 20 and the Spring elements are in the Fig. 6 and 7 shown. The arrangement of the upper pins 20, the lower pins 7 and the spring elements is the same in all the inventive cylinder locks 1. It is possible that more than two upper pins 20 are arranged in the upper channel 6 of the cylinder housing 2 of the cylinder lock 1.

The cylinder lock 1 may have one or more anti-rotation pin openings 19 in the cylinder housing for receiving cylinder housing anti-rotation pins, see Fig. 1 and 2 ,

Fig. 2 shows the recess 12, which is designed for a sliding receiving a closure element 9 of the type, as in the Fig. 3 to 5 shown.

How out Fig. 2 it can be seen, the cylinder housing 2 of a cylinder lock 1 according to the invention has first contact surfaces 11 and as shown in FIGS Fig. 3 to 5 it can be seen, the closure element 9 has second contact surfaces 10 for a sliding engagement with the first contact surfaces 11. The first contact surfaces 11 of the cylinder housing 2 and the second contact surfaces 10 of the closure element serve as a support for the spring elements 8, which are arranged in the upper channels 6 of the cylinder housing 2.

The Fig. 3 to 5 show various views of a closure element 9 of a cylinder lock 1 according to the invention. The closure element 9 can slide into the recess 12 of the cylinder housing 2, see in FIG Fig. 2 to be moved into. The shutter member 9 has an L-shaped contour, comprising a main part 16 and a head 15, which is arranged inclined to the main part 16.

Fig. 6 shows an exploded view of the cylinder lock 1, which is formed according to the inventive design principle. The cylinder lock 1 allows a simple, safe and fast Replacing the closure element 9, to allow easy adaptation of the cylinder lock 1 to a new or modified master key system. The mounting and dismounting of the closure element 9 can be carried out very easily. An installer can realize the mounting and dismounting of the closure element 9 only from one side of the cylinder lock 1. In particular, the cylinder lock 1 allows the installer to perform the replacement of the closure element 9 only with one hand.

The closure element 9 has second contact surfaces 10. The second contact surfaces 10 of the closure element 9 engage in the first contact surfaces 11 of the cylinder housing 2, when the closure element slides onto the first contact surfaces 11 of the recess 12 of the cylinder housing 2, see Fig. 2 , After the intermeshing of the first contact surfaces 11 of the cylinder housing 2 and the second contact surfaces 10 of the closure element 9, the interlocking surfaces 10, 11 serve as a support for the spring elements 8. That means, the mating contact surfaces 10, 11 of both the cylinder housing 2 and the closure element 9 serve as a support for the force exerted by the spring elements 8 on the closure element 9 during actuation of the cylinder lock 1. The closure element 9 provides a stop for the spring elements 8 directly after the engagement of the first contact surfaces 11 of the cylinder housing 2 ready. The closure element 9, in conjunction with the first contact surfaces 11 of the cylinder housing 2, provides a stop for the spring elements 8 which are movably arranged in the upper channels 6 of the cylinder housing 2. The recess 12 and the closure element 9 are formed such that after a sliding engagement of the first contact surfaces 11 of the recess 12, the closure element is positively fixed in all directions in the recess 12, except for the opposite direction of the sliding direction.

The first contact surfaces 11 of the cylinder housing 2 of the cylinder lock 1 extend perpendicular to the axis of the upper channels 6. Such an arrangement of the first contact surfaces 11 in conjunction with the second contact surfaces 10 of the closure element 9, that the closure element is fixed in all directions, in particular in the direction of the force that can be exerted by the spring elements 8 on the closure element, except for the direction perpendicular to the force of the spring elements eighth

The first contact surfaces 11 of the cylinder housing 2 are two parallel longitudinal grooves in the wall of the recess 12 of the cylinder housing 2. Accordingly, the second contact surfaces 10 of the closure element 9 are formed as guide means, in particular in the form of elongated projections. Such a construction of the cylinder housing 2, in particular the recess 12 of the cylinder housing 2, and the closure member 9 allows the closure member 9 can easily slide on the first contact surfaces 11 of the cylinder housing 2. The first contact surfaces 11, which are part of the longitudinal grooves of the recess 12 of the cylinder housing 2, form a slide rail for the closure element 9. Such a cylinder housing 2 and such a closure element 9 allow a simple, fast and secure engagement of the closure element 9 on the cylinder housing 2 of a Locking cylinder 1.

The closure element 9 can be arranged inside the cylinder housing 2. The contour of the depression 12 corresponds to the main part 16 of the closure element 9. The depression 12 and the main part 16 of the closure element 9 are designed such that the main part 16 fits in a form-fitting manner into the depression 12.

The cylinder lock 1 also has a fixing element 24, here in the form of a fixing screw, for releasably fixing the closure element 9 on the cylinder housing 2, in particular in the recess 12 of the cylinder housing 2. The fixing element 24 ensures that the closure element 9 is also fixed against the Aufgleitrichtung of the closure element 9. The closure element 9 can be fixed very easily and quickly by the fixing element 24, since the installer can focus on the attachment of the fixing element 24. The installer does not need to keep the shutter member 9 on the cylinder housing 2 for fixing the fixing member 24 to the cylinder housing 2. The closure element 9 has a bore 14, which may be a threaded bore, and the cylinder housing 2 has a threaded bore 21 for receiving the fixing screw 24. The fixing screw 24 can be guided or screwed through the bore 14 of the closure element 9 into the threaded bore 21 of the cylinder housing 2. The fixing screw 24 ensures a very good and easy attachment of the closure element 9 to the cylinder housing 2 of the cylinder lock 1.

Further, the fixing screw 24 can be easily and quickly released to allow easy replacement of the pins 7, 20 and / or the spring elements 8 of the cylinder lock 1. The fixing screw 24 is advantageously a grub screw.

Advantageously, the threaded bore 21 extends parallel to the axis 5 of the cylinder 4, in particular such that the access of the threaded bore 21 is arranged on the opposite side with respect to the insertion side of the key 17. This arrangement leads to increased security of the cylinder lock 1, because the fixing screw 24 is not accessible from the outside of the cylinder lock 1, which is installed for example in a door.

Alternatively, the fixing element 24 may be a latching element, in particular a latching hook, on the closure element 9 in order to engage with a corresponding latching element of the cylinder housing 2. The cylinder lock 1 may also have means for releasing the locking elements of the corresponding locking elements of the cylinder housing 2.

As already mentioned, the closure element 9 has an L-shaped contour, comprising a main part 16 and a head 15, which is arranged at an angle, in this case at an angle of 90 °, to the main part 16. Such an L-shaped closure element 9, in conjunction with the cylinder housing 2, can define a stop position for the closure element 9 during the sliding of the closure element 9 on the first contact surfaces 11 onto the groove of the depression 12. The cylinder housing 2 has a stopper 13 for defining the stop position for the shutter member 9. The head 15 of the L-shaped shutter member 9 can be stopped by the stopper member 13 of the cylinder housing 2 to stop the sliding of the shutter member 9 and thus the position the closure element 9 on the cylinder housing 2, in particular in the recess 12 of the cylinder housing 2 to define. The main part 16 of the closure element 9 has a plate-like shape and is designed to cover the openings of the upper channels 6 of the cylinder housing 2.

In the Fig. 6 and 7 a core plate 23 is shown, which is fastened with screws 22 to the cylinder 4 on the opposite side for the opening for the key 17.

Such a cylinder lock 1, as in the Fig. 1, 2 . 6 and 7 shown, allows easy and quick replacement of the pins 7, 20 of the cylinder lock 1, because the closure element 9, as in the Fig. 3 to 5 shown, can be quickly and easily replaced by the cylinder housing 2 of the cylinder lock 1.

The present invention is not limited to the embodiment described above, which is given by way of example only and can be varied in various ways within the scope of the present invention with reference to the dependent claims. Therefore, the present invention is also applicable to others Embodiments applicable, in particular to the design of the key element.

LIST OF REFERENCE NUMBERS

1

cylinder lock

2

cylinder housing

3

bore

4

cylinder

5

cylinder axis

6

upper channel in the cylinder housing

7

lower pins

8th

spring element

9

closure element

10

second contact surfaces of the closure element

11

first contact surfaces of the closure element

12

deepening

13

stop element

14

drilling

15

Head of the closure element

16

Main part of the closure element

17

key

18

bit

19

Anti-rotation pin opening in the cylinder housing

20

upper pins

21

threaded hole

22

screw

23

core plate

24

fixing

25

lower channels in the cylinder

Claims (16)

A cylinder lock (1) having a cylinder housing (2) comprising a cylinder bore (3) in which a cylinder (4) is rotatably received, said cylinder (4) having a keyhole for receiving a key bit (18) of a key (17) wherein the cylinder (4) has a plurality of lower channels (25) in which lower pins (7) are movably arranged, and the cylinder housing (2) has a plurality of upper channels (6) in which upper pins (20) are movably arranged in which the lower channels (25) can be arranged in alignment with the upper channels (6) during a rotation of the cylinder (4), whereby both the lower channels (25) and the upper channels (6) are perpendicular to the cylinder axis (FIG. 5), the lower pins (7) being adapted to interact with the key bit (18) inserted in the keyhole, and wherein in each upper channel (6) a spring element (8) is arranged to apply a force on the upper pins (20) in Rich to the lower pins (7), and comprising a closure member (9) releasably secured to the cylinder housing (2) for covering the openings of the upper channels (6) facing away from the cylinder to stop for the spring elements (8), characterized in that the cylinder housing (2) has first contact surfaces (11) and the closure element (9) has second contact surfaces (10) for slidably engaging the first contact surfaces (11) the interlocking surfaces (10, 11) serve as a support for the spring elements (8). Cylinder lock (1) according to claim 1, characterized in that the first contact surfaces (11) extend perpendicular or approximately perpendicular to the axis of the upper channels (8). Cylinder lock (1) according to claim 1 or 2, characterized in that the first contact surfaces (11) part of at least one Longitudinal groove or part of at least one projection, in particular a longitudinal projection, of the cylinder housing (2). Cylinder lock (1) according to one of the preceding claims, characterized in that the second contact surfaces (10) are part of at least one longitudinal groove or part of at least one projection, in particular a longitudinal projection of the closure element (9). Cylinder lock (1) according to one of the preceding claims, characterized in that the first contact surfaces (11) are part of a wall of a recess (12) in the cylinder housing (2). Cylinder lock (1) according to claim 5, characterized in that the recess (12) and at least a main part (16) of the closure element (9) are adjusted such that the at least one main part (16) fits positively into the recess (12). Cylinder lock (1) according to one of the preceding claims 5 or 6, characterized in that the contour of the recess (12) at least a main part (16) of the closure element (9), in particular the entire closure element (9) corresponds. Cylinder lock (1) according to one of the preceding claims, characterized in that a fixing element (24) for releasably securing the closure element (9) on the cylinder housing (2), in particular in the recess (12) of the cylinder housing (2) is provided. Cylinder lock (1) according to claim 7, characterized in that the fixing element (24) is a latching element, in particular a latching hook, on the closure element (9) for engagement with a corresponding latching element of the cylinder housing (2). Cylinder lock (1) according to claim 7, characterized in that the fixing element (24) is a fixing screw, that the closure element (9) has a bore (14), in particular a threaded bore, and that the cylinder housing (2) has a threaded bore (21). for receiving the fixing screw, which is guided through the bore (14) of the closure element (9). Cylinder lock (1) according to claim 9, characterized in that the fixing element (24) is a grub screw. Cylinder lock (1) according to one of the preceding claims, characterized in that the closure element (9) has an L-shaped contour, comprising a main part (16) and a head (15), which is arranged inclined to the main part (16). Cylinder lock (1) according to one of the preceding claims, characterized in that the cylinder housing (2) has a stop element for defining a stop position for the closure element (9) during the sliding of the closure element (9) on the first contact surfaces (11). Cylinder lock (1) according to one of the preceding claims 12 to 13, characterized in that the bore (14), in particular the threaded bore, of the closure element (9) in the head (15) of the closure element (9), in particular parallel to the cylinder axis ( 5) is arranged. Cylinder lock (1) according to one of the preceding claims, characterized in that the upper channels (6) are parallel to one another in a row in the cylinder housing (2) and that the lower channels (25) are parallel to one another in a row in the cylinder (4). are positioned. Cylinder lock (1) according to one of the preceding claims, characterized in that the cylinder housing (2), in particular the recess (12), a sealing element for sealing the closure element (9) in the cylinder housing (2), in particular in the recess (12) having.

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