DE8609633U1 - Lock cylinder cover for door locks - Google Patents

Description

PATENT LAWYERS. . . ,,. ",

DIPL (NG ₁ ¹¹ P. «ICH-ER *

DR. ING. : DiW bHY ^ 'tf ί? TUä {E8 '. I.

56 WUPPERTAL 2, BRAHMSSTRASSE 29

Peter Metz Homa-Beschläge GmbH & Co. KG, Uhlandstr * 21
5620 Velbert 1

Close cylinder cover for door eyelet

The innovation concerns a lock cylinder cover

for especially provided with a profile lock cylinder f

Door locks, with one in one graduated in diameter- X

ten bearing bore of the cylinder cover in front of the front end?

of the lock cylinder core rotatably mounted, a \

with the key channel to be aligned with the key i

cover plate containing a push-through slot. ^

A lock cylinder cover of the above type is through |

the DE-GM 75 31 095 known. It consists of a |

attachable to the front end of the profile cylinder and j

attachable to it cap, in which in the area j

of the sealing cylinder core made of hardened steel!

existing cover panel is located. It protects the cylinder ]

derkern and the tumbler bores located in it.

and pins against drilling, with only the key 1

channel of the cylinder core remains uncovered to the outside. The ;

The cover plate is designed as a flat plate on both sides *

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formed, in which the key insertion slot expires at one end to the outside. To ensure, that the lock slot in the cover panel is in line with the keyway in the cylinder core at all times, the cover plate is at the end of the cylinder core existing dowel pins connected to the latter in a torsion-proof manner. However, these dowel pins affect the Stability of the cylinder core and, ultimately, its safety. In addition, they condition as well the installation of the entire cover cap on the lock cylinder also requires a considerable amount of assembly work »

In contrast, DE-GM 86 07 233 has already proposed a locking cylinder cover that is much easier to assemble, in which the cover disk containing the key insertion slot is located in a cover plate that is on the outer plate of a door \

lock security fitting is attached in the area of the Profilverbindyzlinders outlet. The fastening of the cover plate can be carried out simply as well as in a solid manner via threaded cams which penetrate the security fitting and which are formed on its underside. The cover plate and the cover plate present in it not only ensure safe protection against drilling, but at the same time also prevent the profile lock cylinder from opening or breaking off and its unauthorized removal. With the proposed lock cylinder ab- ϊ

but there is still the difficulty that they cover the different, in particular with regard to their cover plate axial installation positions of the lock cylinder in relation to the security fitting are not sufficient Takes into account, so that the cover plate depending on the installation position of the profile cylinder to a greater or lesser extent Distance from its front side is located. This will

Only the drilling security of the lock cylinder doesn’t work but also interferes with the insertion of the key, since the latter then strikes with its bow against the cover plate or against the border of its bearing bore and would have to be changed accordingly.

The object of the innovation is therefore to provide a lock cylinder cover of the type mentioned at the beginning tu create, in which the cover plate is to be brought into axially different positions in order to access them Way to be adapted as far as possible to the respective axial position of the end wall of the tingebäiiten lock cylinder can do. According to the invention, this object is essentially achieved in that the cover plate is designed like a plate is and her opposite the plate bottom both radially and axially protruding, in the larger bearing bore section mounted plate edge one measured in the axial direction Has a thickness that is smaller than the depth measured in the axial direction of the larger bearing bore section 1st, and that the difference between the plate rim thickness and the bearing bore depth is due to spacers can be bridged. In this way, the plate-like cover disk present in the cover can be converted into different brought axial installation positions and thus adapted to the respective installation position of the lock cylinder so that it comes to lie immediately in front of its end. This adjustment can be done by inserting or removing one or more spacers can be carried out effortlessly. So that's a corresponding fine adjustment of the cover panel to the respective board and possibly also the backlog of the Lock cylinder in the security fitting possible, whereas the relevant rough adjustment is conventional is taken over by the security fitting itself, the wall thickness of which is selected accordingly.

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According to another advantageous feature of the The innovation consists of the spacer washers from spring washers. These are preferably corrugated and closed all around and have a cover plate Tel " Corresponding inner and outer diameter. In this way, not only can the spring washers the corresponding distance adjustment between cover plate and lock cylinder core is achieved / but at the same time the further advantage can be achieved that the plate-like cover plate can thereby be freely rotated is braked. This ensures that your key slot remains in place even when the key is removed always aligned with the key channel of the lock cylinder core, so that each new introduction of the Key is possible without prior, more or less laborious turning of the cover disk.

According to a further feature of the innovation, the plate-like cover disk is the larger in diameter Bearing bore can be turned through 180 °. It can therefore optionally be arranged so that its bottom either facing away from or facing the lock cylinder core, whereby the axial adaptability of the Cover plate on the lock cylinder is enlarged accordingly.

The lock cylinder cover advantageously consists of one on, as in the older proposal an outer plate of a door lock security fitting attached cover plate with centrally arranged therein Bearing bore and rotatably seated cover disk therein, with the edge of the plate, in particular on their Corners, threaded cams formed on the underside are available, via which the cover plate is attached to the outer shield can be. In principle, however, it is also possible to use the bearing bore and the plate-like one Cover plate including spacers directly

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bar on the outside plate of a door lock security fitting to be arranged, i.e. to integrate the bearing bore and the cover disc directly into the outer fitting plate.

In the drawing, an advantageous embodiment of the innovation is shown. Show it

Fig. 1, 2 and 3 each vertical sections

a lock cylinder cover with on an outer door plate attached cover plate and seated cover plate, namely the latter in three different, the different axial position mounting positions adapted to the lock cylinder,

4, 5 and 6 the cover plate in plan view and in section along lines V-V and VI-VI of Fig. 4,

7 the cover plate in different views,

8 shows a section along the line VIII-VIII of FIGS. 7 and

9 shows a distance-securing spring washer in a side view and top view.

The lock cylinder cover shown in FIGS. 1 to 3 consists essentially of that on an outer plate 1 of a door lock security fitting attached cover plate 2 with rotatably mounted cover plate therein 3, the built-in profile lock cylinder 4 of conventional design at the front against drilling and break open. For this purpose, at least the cover plate 3 should consist of hardened steel. Even the cover plate 2 can be made on it ^. The one lying flat over the threaded bolts 5 on the Xui & latt attached outer shield 1 is dimensioned in its wall thickness W so that the built-in Piofil-

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locking cylinder 4 with its end face 4 ¹ or the cylinder core end 4 ¹¹ still protruding slightly above it runs essentially flush with the outer ^{shield front side I 1.} In practice, however, this is rarely the case. Rather, there are often different axial positions of the lock cylinder with respect to the outside of the door plate 1 ', as illustrated, for example, in FIGS. 1 to 3. The fine adjustment in this regard can, however, easily be achieved by means of the cover disk 3 which is present in the cover plate 2 and which is designed and supported according to the present invention, as will be described in more detail below.

The cover plate 2 is preferably of the nature shown in FIGS. It is essentially rectangular in shape and provided with threaded cams 6 in the vicinity of its four corners, which are inserted into corresponding bores in the outer door plate 1 and securely held therein by means of the fastening screws 7 to be attached to the rear. In its center, the cover plate 2 is provided with a bearing bore 8 stepped in diameter, which consists of the bore section 8 ^{1 with the} largest diameter, the bore section 8 ^{11 with the} smallest diameter and the countersunk section 8 ¹¹ '. On the back, the cover plate 2 is provided with a recess 2 'which, if necessary, can accommodate the front end 4' of the lock cylinder housing in the most protruding position of the lock cylinder shown in FIG. If the lock cylinder 4 with its housing should not ^{protrude beyond the outside I 1} of the outer door plate 1, as shown in FIG. 1, the cover plate 2 is preferably turned 180 ° in relation to the fastening position shown in FIG. 2 and attached to the outer shield 1 so that then between the underside of the cover plate

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and the facing end 4 'of the lock cylinder housing there is no gap, which means that the profile cylinder is break-proof and stable 4 is still increased.

In order to achieve the above-mentioned fine adjustment of the cover plate 3 to the axial installation position of the lock cylinder 4, the cover plate 3 is of the plate-like nature shown in FIGS. It has a plate rim 3 ″ which ^{protrudes radially as well as axially relative to its plate base 3 1} and which is rotatably supported in the larger bearing bore section 8 ′ of the cover plate 2. The plate rim has, measured in the axial direction, a thickness d which is smaller than the depth t, measured in the axial direction, of the larger bearing bore section 8 '. The between this plate edge thickness d and the bearing bore depth t

• Existing difference can be due to one or more of the

Spring washers 9 shown in FIG. 9 are bridged. These spring washers are like the one above Part of Fig. 9 can be seen, corrugated. They are closed all around and have an outside and inside diameter, which essentially corresponds to the inside and outside diameter of the cover plate rim 3 ″ ,

As FIGS. 1 to 3 illustrate, the cover plate 3, which is designed like a plate, can be installed in the position of the lock cylinder front end can be easily adapted so that it is directly in front of the cylinder with its plate rim the end lies. In the installation position shown in Fig. 1, so in which the cylinder front end is practical runs flush with the outside 1 'of the outer door plate 1, are between detf Abdedkiicheibe 3 and the in the cover plate 2 existing bearing bore 8 several

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Ring spring washers 9 inserted. The plate rim 3 ¹ 'of the cover plate 3 rests on the edge area of the outer shield 1 surrounding the lock cylinder opening 1'', while the plate base 3' faces away from the lock cylinder 4, i.e. ^{lies in the bore section 8 1} 'with a smaller diameter. By the spring washers, the plate-like cover plate 3 is braked in its free rotational mobility at the same time, which ensures that the in the cover plate

3 existing key slot 3 ¹¹ 'st. It is aligned with the key channel in the profile lock cylinder core, especially in the key withdrawal position, so that the key can easily be reinserted in the usual simple manner.

FIG. 2 illustrates the case in which the lock cylinder 4 protrudes relatively far beyond the outside 1 ′ of the outer door plate 1. In this case, the spring washers 9 are completely removed, so that the cover plate 3 ^{rests with its plate rim 3 1} directly on the shoulder of the bearing bore 8.

Finally, FIG. 3 shows how the cover plate 3 itself is still close to the front end of the profile cylinder

4 can reach if the latter springs back with its front end 4 ¹ behind the outside I ^{1 of} the outer door plate 1. For this purpose, the plate-like cover plate 3 is turned through 180 ° and inserted into the bearing bore B so that its plate base 3 ¹ faces the lock cylinder 4. In this case, the annular spring washers or even just one of them lie between the plate ^{rim 3 11} and the edge of the outer shield 1 surrounding the lock cylinder insertion openings l' ¹

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so inhibited in their rotational mobility that their key through slot 3 ' ¹ ' is always aligned with the key channel of the profile cylinder core in the key withdrawal position.

It is understood that the bearing bore 8 and the cover plate 3 optionally in connection with a or more of the annular spring washers 9 instead of in one special cover plate 2 just as well also directly can be arranged in the outer shield 1 of a door lock security fitting, since the telier-like cover disc 3 their adaptability at axially different installation positions of the profile lock cylinder front end beibeb? .lt.

Claims (1)

• · ■ λ dr. ing. uiPL.:pWs:Pifc:S.TUR^s ;; PATENTANWÄLTE _, e, ÄUi m-n- - .. DIPL. ING. V. EICKLER · "■ 56 WUPPERTAL 2, BRAHMSSTRASSE 29 Protection claims: 1. Lock cylinder cover for door locks, in particular provided with a profile lock cylinder, with a cover disk which is rotatably mounted in a bearing bore of the cylinder cover stepped in diameter in front of the front end of the lock cylinder core and contains a key insertion slot to be coincident with its key channel, characterized in that the cover disk (3) Is plate-like and its plate ^{rim (3 11 ), which protrudes radially and axially in relation to the plate base (3 1} ) and is mounted in the larger bearing bore section (8 '), has a thickness (d), measured in the axial direction, which is smaller than that in the axial direction measured depth (t) of the larger bearing bore section (8 ¹ ), and that the difference between the plate rim thickness (d) and bearing bore depth (t) can be bridged by spacers (9). 2. Lock cylinder cover according to claim!, Characterized in that the Spacers consist of spring washers (9). 3. Lock cylinder cover according to claim 2, characterized in that the spring ring washers (9) are corrugated and closed all around and have an inner and outer diameter ^{1 corresponding to the cover plate rim (3 I (} )). for r * ■ · · ι • · ft « ■ · • f «· 4. Lock cylinder cover according to one of the claims 1 to 3, characterized in that the plate-like cover plate (3) in dedem im Larger diameter bearing bore section (8 ') is mounted rotatable by 180 °. 5. lock cylinder cover according to claim 4, characterized characterized in that the bottom (3 ') of the plate-like cover plate (3) the Schli-.O.zylinderkern is deflected (Fig. 1, 2). 6. Lock cylinder cover according to claim 4, characterized in that the bottom (3 ¹ ) of the plate-like cover plate (3) faces the lock cylinder core (Fig. 3). 7. Lock cylinder cover according to one of the claims 1 to 6, characterized in that that it consists of one on an outer plate (1) of a door lock security fitting attached cover plate (2) with centrally arranged bearing bore (8) for the plate-like cover plate (3) and several threaded cams (6) formed on the underside of the plate edge, in particular at their corners consists. 8. Lock cylinder cover according to one of the claims 1 to 6, characterized in that the bearing bore (8) and the plate-like Cover disk (3) including the spacer disks (9) directly in the outer shield (1) of a Door lock security fittings are arranged.