EP0287799B1 - Fittings for doors equipped with cylinder locks or the like - Google Patents

Abstract

1. Fitting (1) for doors or the like which are equipped with a lock cylinder (17), with a base plate (2), which is to be fastened on the door surface, has a lock cylinder receiving opening (18) and bears a sliding cover (5), which is guided on the said base plate, can be displaced out of its shut-off position covering the lock cylinder receiving opening (18) and is provided with an additional lock (magnetic lock 31), characterized in that a bolt element (20), spring-loaded in the advanced position, is mounted on the base plate (2) and, when the sliding cover (5) is in the shut-off position, moves with its blocking end (21) behind a blocking step (blocking opening 25) which is assigned to the sliding cover and in that, for releasing the sliding cover (5), the engagement behind the step can be discontinued by operating the additional lock (magnetic lock 31).

Description

The invention relates to a fitting according to the preamble of the main claim.

A fitting of this type has already been proposed, the additional lock being designed as a pressure cylinder provided with a locking member. The locking member engages in the locking position of the sliding cover covering the sliding cover in a recess of the base plate and thus secures the locking position of the sliding cover. Such a construction is unfavorable in terms of handling, since the additional lock must be actuated to close the sliding cover.

The invention is based on the object of specifying a fitting of the type in question of a lock-safe structure in such a way that its handling is simplified.

This object is achieved by the features of the characterizing part of claim 1. The subclaims relate to advantageous developments of the subject matter of claim 1.

As a result of such a configuration, a fitting of particularly simple handling is specified. Due to the design according to the invention of designing the locking member to be spring-loaded, when the sliding cover is closed, the effect occurs that the locking member is shifted behind the locking step due to the spring preload. It is therefore not necessary to operate the additional lock to close the sliding cover. Only to open the sliding cover, the rear engagement of the locking step and locking member is to be released by actuating the additional lock.

According to a development of the invention, it is provided that the blocking step is formed by a blocking opening located on the underside of the sliding cover. In this case, the spring-loaded locking member enters the locking opening when the sliding cover is closed, the wall area of which forms the locking step.

Preferably, an additional lock-actuable, sliding cover-side release member is provided, which can be displaced into the blocking opening for acting on the locking member in the withdrawal position releasing the sliding cover. This training has the advantage that the additional lock is relieved of locking forces. There is therefore a fitting of increased security value. The additional lock is used exclusively to control the release member in order to move the locking member of the base plate which is spring-loaded in the forward position into the withdrawn position by means of the same in the closed position of the sliding cover. In this way, the locking member is brought out of engagement with the locking opening located on the underside of the sliding cover, which permits the subsequent displacement of the sliding cover into the open position. Since the locking element guided on the base plate side and spring-loaded in the forward position absorbs the locking forces, additional locks with less dimensions can be used. Magnetic locks can also be provided with advantage. The locking element itself can be designed in such a way that, in contrast to known additional locks, it can be subjected to higher loads.

Alternatively, it can also be provided that the additional lock has a locking hook which is provided with an inclined bevel in the closing direction of the sliding cover and can be folded over by key actuation. This also ensures easy handling. The erected locking hook presses down the spring-loaded locking element with its ramp and closes the sliding cover and runs over it. The locking element springs back after being run over and thus gets into the rear grip of the locking hook. An additional lock actuation is not necessary for this. If the sliding cover is to be moved to the open position, the locking hook is flipped over by key actuation, so that it is guided past the spring-loaded locking element by moving the sliding cover.

The locking element fulfills a double function in connection with the stop located on the underside of the sliding cover. When the sliding cover is moved, this limits the opening path in front of the locking element on the base plate side.

So that when the sliding cover is moved back, the locking member again comes into the locking opening arranged on the underside of the sliding cover, an upward slope from the stop, rising in the direction of the locking opening to the underside level, is provided for the locking member between the stop.

A trouble-free locking function is ensured in that the locking member is designed as a locking pin which is displaceably mounted in a stepped recess in the base plate and is provided with an annular collar opposite the locking end. The ring collar serves to limit the pitch of the locking pin by being supported in the recess at the step thereof.

The front load on the locking pin or the locking member is provided on the end of the locking pin on the ring collar-side end of the compression spring, which is supported at the other end by the screwed screw plug in the recess. By means of the same it is even possible to adjust the spring preload. However, the threaded plug is guided in the recess so that it does not twist unintentionally. Rather, this requires the attachment of a screwing tool, for example the blade of a screwdriver.

The crowned end of the locking pin even allows the sliding cover to be shifted into the open position if the locking member has not been pushed back completely by means of the release member which can be actuated by the additional lock. In the initial phase of the corresponding displacement movement, the spherical locking end causes the locking member to be completely displaced into the back step position, namely through the corresponding edge of the barrier opening.

There are structural advantages in that the release member is designed as a plunger passing through a channel opening into the bottom of the blocking opening. By actuating the additional lock, the plunger is shifted and thus the locking member is driven into the withdrawal position. The plunger can be firmly connected to the additional lock.

It is advantageous that the additional lock is designed as a magnetic lock which has this plunger protruding from the rear. If the corresponding magnetic key is assigned to the magnetic lock, it can be shifted inward against the load of a compression spring combined with simultaneous entrainment of the plunger and actuation of the locking member.

• Fig. 1 eine Ansicht des Beschlages bei in Verschlußlage befindlichem Schiebedeckel,
• Fig. 2 eine Seitenansicht des Beschlages, ebenfalls die Verschlußlage des Schiebedeckels betreffend,
• Fig. 3 den Schnitt nach der Linie 111-111 in Figur 1,
• Fig. 4 den Schnitt nach der Linie IV-IV in Figur 1,
• Fig. 5 in vergrößerter Darstellung den Schnitt nach der Linie V-V in Figur 1,
• Fig. 6 einen der Figur 5 entsprechenden Schnitt, wobei mittels des zusatzschlossbetätigbaren, schiebedeckelseitigen Freigabegliedes das Riegelglied in die Rücktrittsstellung verlagert ist,
• Fig. 7 in perpektivischer Darstellung den Schiebedeckel, in Richtung seiner Unterseite gesehen,
• Fig. 8 eine Ansicht des Beschlages bei in Offenstellung befindlichem Schiebedeckel,
• Fig. 9 einen der Figur 3 entsprechenden Schnitt, ebenfalls die Offenstellung des Schiebedeckels betreffend,
• Fig. 10 den Schnitt nach der Linie X-X in Figur 1 und
• Fig. 11 den Schnitt nach der Linie XI-XI in Figur 8.

An exemplary embodiment of the invention is explained below with reference to FIGS. 1-11. It shows

• 1 is a view of the fitting with the sliding cover in the locked position,
• 2 is a side view of the fitting, also relating to the closed position of the sliding cover,
• 3 shows the section along the line 111-111 in Figure 1,
• 4 shows the section along the line IV-IV in FIG. 1,
• 5 is an enlarged view of the section along the line VV in Figure 1,
• 6 shows a section corresponding to FIG. 5, the locking member being displaced into the withdrawal position by means of the release member which can be actuated by the sliding cover,
• 7 is a perspective view of the sliding cover, seen in the direction of its underside,
• 8 is a view of the fitting with the sliding cover in the open position,
• 9 shows a section corresponding to FIG. 3, also relating to the open position of the sliding cover,
• Fig. 10 shows the section along the line XX in Figure 1 and
• 11 shows the section along the line XI-XI in FIG. 8.

The fitting 1 illustrated in the drawings has an elongated, rectangular base plate 2 in plan. In the upper region, this carries a handle 3. The lower region 4 of the base plate 2 is stepped and takes up a sliding cover 5 guided in the longitudinal direction of the base plate 2. Its front surface 6, which extends over a short length of the fitting, is flush with the front surface 7 of the base plate 2. The cross section of the sliding cover 5 is selected so that the side walls 8 of the sliding cover 5 continuously merge into the side surfaces 9 of the base plate 2 with the realization of a transition-free appearance. The fitting 1 essentially has a trapezoidal shape both in the longitudinal and in the cross section.

In the lower area, the front surface 6 of the sliding cover 5 is surmounted by a material thickening 10, the side walls 10 'of which merge into the side walls 8. In the side walls 8 5 guide grooves 11 are recessed over the entire length of the sliding cover, into which laterally projecting guide webs 12 of the lower region 4 of the base plate 2 are immersed. In this way, it is possible to shift the sliding cover 5 in the longitudinal direction to the base plate 2 and to move it to the separation point T between the base plate 2 and the sliding cover 5.

The underside 13 of the sliding cover 5, which is set back by the guide grooves 11, contains a recess 15 which extends up to the upper end edge 14 of the sliding cover. The width of the recess 15 is greater than that of the end 16 of a locking cylinder 17 which projects into it a receiving opening 18 of the lower region 4 of the base plate 2 passing through profile cylinder. If the sliding cover 5 is in its closed position, it overlaps the locking cylinder 17 and does not permit the key associated with the locking cylinder 17 to be inserted.

In the lower region 4 of the base plate 2, a step-like recess 19 is provided on a side lying beyond its longitudinal center line. The latter is composed of a section 19 'of larger cross section facing the stop face of the fitting and a section 19' of smaller section facing the underside 13 of the sliding cover. The length of section 19 ′ corresponds to a multiple of the length of section 19 ″. A step 19 is formed by the two sections.

A locking member 20 is guided in the recess 19. The latter is designed as a locking pin which is provided with an annular collar 22 opposite the smaller cross-section locking end 21 and which is loaded in the forward position by a compression spring 23. The compression spring 23 is supported on the one hand on the end face of the locking member 20 on the ring collar side and on the other hand on a threaded plug 24 screwed into the section 19 'of the recess 19. Due to the spring loading, the annular collar 22 of the locking member 20 is in the forward position at the step 19 "of the recess 19 in such a way that the locking end 21 projects beyond the lower region of the base plate 2 and engages in a locking opening 25 extending from the underside 13 of the sliding cover 5 Bottom 25 'of this extends from a channel 26 directed transversely to the stop plane of the fitting, in which a release member 27 designed as a tappet is guided, the end of which forms a thickened head 28 provided with a transverse slot, which is larger in cross section than channel 26 and in which Locking opening 25. The thickened head 28 extends to the locking end 21 of the locking member 20. The shaft end 29 of the plunger-like release member 27 opposite the head 28 is screwed into the housing 30 of an additional lock designed as a magnetic lock 31.

The magnetic lock 31 has a circular shape Cross-section and is inserted into a cup-shaped recess 32 of the material thickening 10 of the sliding cover 5, such that in its locked position it closes with the corresponding front surface 10 "of the material thickening 10, see FIG. 5.

A conical compression spring 33 loads the magnetic lock housing 30 in the outward direction. This compression spring 33 is supported with its larger diameter turn on the bottom 32 'of the cup-shaped recess 32, while the smaller diameter turn acts on the facing end face of the housing 30. In addition, the housing 30 is guided by a pin 34 arranged centrally to the recess 32. The latter passes through the compression spring 33 and is fixed on the sliding cover 5 by means of a screw 35.

At its end facing the front surface 10 ″, the magnetic lock 31 has an embedment recess 36 for a magnetic key 37. At its upper end, a stop 38, which interacts with the locking member 20 and interacts with the locking member 20, is provided on the underside of the sliding cover 13. The latter extends Between the stop 38 and the locking opening 25 there is a run-up slope 39 starting from the stop 38 in the direction of the locking opening 25 and rising to the underside level, with which the locking member 20 cooperates.

At the same cross-sectional plane to the locking member 20, the base plate 2 carries a ball catch 40. The latter is composed of a compression spring 41 and a ball 42. Both are accommodated in a sleeve 43 inserted into the base plate 4 and are held by a screw 44. The bottom of the sleeve 13 facing is slightly caulked so that the ball 42 can not leave the sleeve, but presses against the underside 13 and holds the sliding cover 5 frictionally. A shift of the cover 5 must therefore always be deliberate.

• Gemäß der Verschlußlage des Schiebedeckels 5, vergleiche insbesondere Figur 1 und 5, greift das Riegelglied 20 der Grundplatte 4 in die Sperröffnung 25 des Schiebedeckels 5 ein. Letzterer ist somit gegen Verschieben in Abwärtsrichtung blockiert. Der Schließzylinder 17 ist also nicht betätigbar. Um diesen schließen zu können, muß vorerst der Schiebedeckel in seine Offenstellung verlagert werden. Dies verlangt den erforderlichen Magnetschlüssel 37, der in die Einlagerungsmulde 36 einzulegen ist. Dadurch werden die nicht veranschaulichten Magnete so ausgerichtet, daß anschließend das Magnetschloß 31 entgegen der Kraft der kegelförmigen Druckfeder 33 in Einwärtsrichtung verschoben werden kann. Einhergehend beaufschlagt das Freigabeglied 27 mit seinem Kopf 28 das Riegelglied 20 und bringt dieses in die Rücktrittsstellung gemäß Figur 6. Die Querverlagerung des Magnetschlosses 31 ist beendet, wenn die endseitige Stirnfläche des Kopfes 28 des Freigabegliedes auf Höhe der Unterseite 13 des Schiebedeckels 5 liegt.

This works as follows:

• According to the closed position of the sliding cover 5, compare in particular FIGS. 1 and 5, the locking member 20 of the base plate 4 engages in the locking opening 25 of the sliding cover 5. The latter is thus blocked against moving downwards. The lock cylinder 17 can therefore not be actuated. In order to be able to close this, the sliding cover must first be moved into its open position. This requires the required magnetic key 37, which is to be inserted into the storage recess 36. As a result, the magnets, which are not illustrated, are aligned in such a way that the magnetic lock 31 can then be displaced in the inward direction against the force of the conical compression spring 33. At the same time, the release member 27 acts with its head 28 on the locking member 20 and brings it into the withdrawal position according to FIG. 6. The transverse displacement of the magnetic lock 31 is ended when the end face of the head 28 of the release member lies at the level of the underside 13 of the sliding cover 5.

It is now possible to move the sliding cover 5 in the downward direction, the locking member 20 sliding with its locking end 21 on the run-up slope 39. The opening path is limited by the fact that the stop 38 abuts the locking end 21 of the locking member 20, see FIGS. 9 and 11. The end 16 of the locking cylinder 17 is now exposed for key actuation. After the sliding cover 5 has been moved or during this, the magnetic key can be removed. The compression spring 43 then brings the magnetic lock back into its starting position connected with a withdrawal of the release member 27.

If the locking position of the sliding cover 5 is to be brought back again, the latter need only be pushed in the upward direction. The spring-loaded locking member 20 is brought over the bevel 39 to the underside level of the sliding cover, so that in the final phase of the closing movement, the spring-loaded locking member 20 can dip into the locking opening 25 with its locking end 21, blocking movement of the sliding cover 5.

Claims (11)

1. Fitting (1) for doors or the like which are equipped with a lock cylinder (17), with a base plate (2), which is to be fastened on the door surface, has a lock cylinder receiving opening (18) and bears a sliding cover (5), which is guided on the said base plate, can be displaced out of its shut-off position covering the lock cylinder receiving opening (18) and is provided with an additional lock (magnetic lock 31), characterized in that a bolt element (20), spring-loaded in the advanced position, is mounted on the base plate (2) and, when the sliding cover (5) is in the shut-off position, moves with its blocking end (21) behind a blocking step (blocking opening 25) which is assigned to the sliding cover and in that, for releasing the sliding cover (5), the engagement behind the step can be discontinued by operating the additional lock (magnetic lock 31).

2. Fitting according to Claim 1, characterized in that the blocking step is formed by a blocking opening (25) which is situated on the underside (13) of the sliding cover (5).

3. Fitting according to Claim 1 and/or 2, characterized by a release element (27), which is on the sliding cover side, can be operated by an additional lock and can be displaced into the blocking opening (25) for bolt element actuation into the return position releasing the sliding cover (5).

4. Fitting according to Claim 1, characterized in that the additional lock has a latch which is provided with a. run-up slope, pointing in the closing direction of the sliding cover (5), and can be switched over by operation of a key.

5. Fitting according to one or more of the preceding claims, characterized in that a stop (38), which limits the opening path of the sliding cover (5) and interacts with the bolt element (20), is provided on the underside (13) of the sliding cover.

6. Fitting according to Claim 5, characterized in that a run-up slope (39) for the bolt element (20), which slope starts from the stop (38) and rises in the direction of the blocking opening up to the level of the underside, is provided between the stop (38) and the blocking opening (25).

7. Fitting according to one or more of the preceding claims, characterized in that the bolt element (20) is designed as a lock pin which is displaceably mounted in a stepped recess (19) of the base plate (2) and is provided with an annular collar (22) opposite the blocking end (21), the annular collar (22) bearing against the step (19"') of the recess (19) when the lock pin (20) is in the advanced position.

8. Fitting according to Claim 7, characterized by a helical compression spring (23), which is supported at one end on the end face of the lock pin (20) on the annular collar side and at the other end on a threaded shut-off plug (24) screwed into the recess (19).

9. Fitting according to Claim 7 or 8, characterized in that the blocking end (21) of the lock pin (20) is convexly designed.

10. Fitting according to one or more of Claims 3 to 9, characterized in that the release element (27) is designed as a push rod passing through a channel (26) opening out into the bottom of the blocking opening (25).

11. Fitting according to one or more of the preceding claims, characterized in that the additional lock (31) is designed as a magnetic lock which has the push rod (release element 27) projecting from its rear side.

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