EP0633379A2 - Espagnolette - Google Patents

Abstract

The invention relates to an espagnolette lock with a reduction gear, with an espagnolette connecting slide actuable by a locking mechanism and displaceable parallel to the fore-end and with a latch retractable transversely to the fore-end as a result of a reversing lever loadable by a stop assigned to the espagnolette connecting slide. So that the latch can be matched in an optimum manner to different conditions of installation, provision is made for the advancing position of the latch (7) to be adjustable as a result of an adjustability of the play of movement of the reversing lever (30). <IMAGE>

Description

The invention relates to an espagnolette lock with a reduction gear, a lock gear actuable, displaceable parallel to the faceplate connecting rod slide and to a latching lever, which can be acted upon by a stop associated with the connecting rod connecting slide, transversely to the faceplate.

An espagnolette lock of the type in question is known from DE 29 11 647 A1, the espagnolette connecting slide carrying a pin forming the stop above the latch. This works together with a double-armed lever on the lock housing side. The longer lever arm engages a pin projection of the trap tail. The leading position of the trap is limited by a lock bolt on the lock case side, which engages in a longitudinal slot of the trap tail. Therefore, the forward position of the trap over the faceplate is always unchangeable, which can be disadvantageous in some cases with different installation tolerances.

The object of the invention is based on the object of designing a generic espagnolette lock in a technically simple manner in such a way that the trap is optimally adaptable to different installation conditions.

This object is achieved with a generic drive rod lock in that the forward position of the latch is adjustable by an adjustability of the play of the change lever.

As a result of such a configuration, the utility value of an espagnolette lock of the type in question is increased. The insertion path of the latch into the striking plate on the door frame is optimally adjustable. This solution can be used both with a roller trap and with a normal trap equipped with a sloping trap. In the case of a roller latch, it is possible to switch the espagnolette lock from a simple snap function to a locking latch / bolt function: If the roller latch is only very slightly immersed in the striking plate, so that the roller is supported on the edge of the striking plate, the door can be viewed from the outside as well open inside, for example can be cheap for day-to-day medical practices. However, if you set the immersion depth of the roller latch so far that the other surfaces of the latch head are locked in the striking plate, only actuation by means of the inside handle or the key-operated change is possible. For the rest, such a design is made that an adjustment of the play of the change lever is only possible with the door open in order to largely prevent unauthorized manipulation.

An advantageous further development is characterized in that the change lever runs approximately parallel to the faceplate. On the one hand, it requires little installation space. On the other hand, a direct vicinity of the faceplate allows the position of the change lever to be adjusted from the faceplate.

It proves to be advantageous that an adjustable fixed stop is provided to adjust the play of movement, which limits the swiveling of the change lever. Simply moving it changes the attack position of the change lever to the trap and thereby its leading position over the faceplate.

Furthermore, it proves to be advantageous that the fixed stop can be actuated on the cuff side and is designed as a grub screw acting on the change lever. Simply adjusting the grub screw changes the position of the change lever. The thread receiving the grub screw is designed so that self-adjustment of the grub screw is excluded.

In addition, a favorable feature of the invention is that the change lever, which is designed as a two-armed lever, can be acted upon at its end by a lever arm from an end-side abutting edge of the connecting rod connecting slide. This results in an optimal integration of the change lever in the reduction gear. If the latch of the espagnolette connecting slide moves with its butt edge in the direction of the change lever during a closing operation in order to pull back, this is acted upon. He turns around his journal and moves the latch inside the lock.

So that the connecting rod connecting slide moves back into its basic position after its changeover operation, it is provided that the abutting edge acts on the changeover lever with the interposition of a drive rod return spring, the spring travel of the drive rod return spring preferably corresponding to the maximum pivoting path of the changeover lever. Regardless of the adjustment of the change lever, the connecting rod connecting slide is always shifted back into its correct basic position after the change lever is actuated. It is then proposed according to the invention that the trap designed in the form of a roller trap has a box-shaped profile section which projects above the faceplate in the maximum adjustable forward position.

It is further provided according to the invention that the trap tail side has a receiving space for the longer lever arm of the change lever, in particular in the form of a pocket and having two opposite stops. The change lever is supported on the one stop in the basic position. The other stop comes into effect when the trap moves, for example when the door slams shut.

Finally, it should be emphasized that the transmission ratio of the lever arms is approximately 1:10, preferably with a displacement path of the connecting rod connecting slide of 1 to 1.3 mm being accompanied by a trap return path of 10 mm. Therefore, even a slight closing rotation of the cylinder core using the key is sufficient to withdraw the latch from its forward position.

A component of the invention, which is also essential in itself and can have an independent meaning, is the drive rod return spring, which is tensioned by a stop surface assigned to the drive rod connecting slide when it is actuated alternately. The elasticity of this drive rod connecting slide return spring is sufficient to automatically shift the connecting rod slide and any existing connecting rod locks back into the neutral position. This stop surface can be formed by a butt edge of the connecting slide. The spring can also be the transmission means to move the rod connecting slide to the change lever transferred to. The spring can be in the intermediate position between the bumper edge and the change lever. Another possibility of realizing this idea is that the connecting slide acts directly on the change lever. A cam or a separate step can then be provided on the connecting rod connecting slide, which forms the stop surface which acts on the connecting rod return spring. An advantage of this embodiment is that when the connecting rod slide slide is shifted from a neutral position into a locking position, the connecting rod slide return spring does not have to come into effect at all. This spring is tensioned only when the change-over actuation takes place with the connecting rod connecting slide, so that the latch is withdrawn. This has the consequence that the latch spring is relieved. The latch spring then does not need to move the connecting rod connecting slide back to the neutral position. Only the change lever and latch itself are moved back to the pre-closed position by the latch spring. This design is preferred for locks with a roller latch, since this ensures that the latch can be closed in a particularly favorable manner and does not require large forces by running onto a striking plate. When the espagnolette lock is transferred from its neutral position to the bolt position, in which a slide bolt can also extend, the espagnolette connecting slide is moved by a gear transmission. In order to achieve a particularly constructive form of the lock, two connecting rod connecting slides which can be displaced in opposite directions are provided, one of which runs along the cuff. The toothed wheel of the last wheel engaging in a toothing of the connecting rod connecting slide has a toothing with a larger diameter, the toothing with a larger diameter essentially extending up to Cuff reaches, so that the larger diameter toothing of the connecting rod connecting slide is covered. In order to achieve a favorable cam guide, the cam dips through a tooth-free area of the larger diameter toothing of the last wheel when moving the connecting rod connecting slide. This gives a maximum diameter of the larger toothing of the last wheel with a minimal overall width of the lock.

Figur 1

eine Ansicht eines erfindungsgemäß gestalteten Treibstangenschlosses bei fortgelassener Schloßdecke mit Blick auf das Schloßeingerichte, betreffend die Vorschließstellung des Riegels,

Figur 2

eine Ansicht gegen den Stulp des Treibstangenschlosses,

Figur 3

in vergrößerter Darstellung das Treibstangenschloß im Bereich der als Rollenfalle gestalteten Falle, ebenfalls die Schließstellung betreffend,

Figur 4

eine der Figur 1 entsprechende Darstellung, wobei der Riegel zurückgeschlossen ist,

Figur 5

eine der Figur 3 entsprechende Darstellung, wobei jedoch durch Wechselhebelbetätigung über den Wechselhebel die Rollenfalle schloßeinwärts gezogen ist,

Figur 6

den Schnitt nach der Linie VI-VI in Figur 5,

Figur 7

den Schnitt nach der Linie VII-VII in Figur 5,

Figur 8

ein zweites Ausführungsbeispiel der Erfindung in der Neutralstellung,

Figur 9

ein Schloß gemäß Figur 8 in fallenseitiger Ansicht bei abgenommener Stulpschiene,

Figur 10

ein Schloß gemäß Figur 8 bei Wechselbetätigung,

Figur 11

ein Schloß gemäß Figur 8 in der Verriegelungsstellung,

Figur 12

eine Ansicht gemäß Figur 9 in Stellung gemäß Figur 11.

An embodiment of the invention is explained below with reference to the drawings. It shows

Figure 1

FIG. 2 shows a view of an espagnolette lock designed according to the invention with the lock cover removed and with a view of the lock mechanism, regarding the locking position of the bolt, FIG.

Figure 2

a view against the faceplate of the espagnolette lock,

Figure 3

in an enlarged view the espagnolette lock in the area of the case designed as a roller latch, also relating to the closed position,

Figure 4

2 shows a representation corresponding to FIG. 1, the bolt being closed,

Figure 5

3 shows a representation corresponding to FIG. 3, the roller latch being pulled inward of the lock by the change lever actuation via the change lever,

Figure 6

the section along the line VI-VI in Figure 5,

Figure 7

the section along the line VII-VII in Figure 5,

Figure 8

a second embodiment of the invention in the neutral position,

Figure 9

8 a lock according to FIG. 8 in a case-side view with the faceplate removed,

Figure 10

8 shows a lock according to FIG.

Figure 11

a lock according to Figure 8 in the locking position,

Figure 12

9 in the position according to FIG. 11.

The espagnolette lock has a lock housing 2 connected to a faceplate 1. The faceplate 1 projects beyond the lock housing 2 on both sides and overlaps an upper and lower drive rod 3, 4 emerging from the lock housing 2. These are provided with locking elements, not shown, which also have a door frame side Counter-parts not shown cooperate.

In the upper area of the lock housing 2, a case designed as a roller latch 7 is guided between a lock base 5 and a lock cover 6. Specifically, this is composed of a box-shaped profile section 9 passing through a faceplate opening 8, which is coupled with a latch tail 10 projecting into the lock. Around a vertical axis, the box-shaped profile section 9 supports a roller 11 projecting above it. There is a plug-in coupling between the tail tail 10 and profile section 9. If necessary, a normally designed trap head with a sloping slope could be used instead of the same.

In the lock housing 2, a nut housing 12 is integrated. This supports a lock nut 13 equipped with a square opening. A slide 16, which is acted upon by a compression spring 15, engages on a protruding nut arm 14. The movement of the lock nut 13 in the counterclockwise direction is limited by a projection 17 of the lock housing 12, on which projection an arm 18 of the lock nut 13 is supported, cf. Figure 3 in particular. Furthermore, the lock nut 13 forms an upwardly projecting latch retraction arm 19 which interacts with a shoulder 20 of the latch tail 10.

A support plate 21 is fixed on the lock base 5. This supports a ring gear 23 in a bore 22. The bore 22 is crossed by a locking cylinder insertion opening 24 for a locking cylinder (not shown) designed as a profile cylinder. The cylinder core axis is offset from the central axis of the ring gear 23, below the same.

The ring gear 23 is provided with a radially directed gap 25 for engaging a locking bit of the profile locking cylinder. With the external toothing of the ring gear 23 mesh two output gears A, B of a reduction gear U, the last gear 26 is used to drive two oppositely displaceable connecting rod connecting slide 27, 28. The connecting rod connecting slide 27 is coupled to the lower connecting rod 4, while the opposite connecting rod connecting slide 28 entrains the upper connecting rod 3. The drive rod connecting slide 28 then still serves to drive the below the roller latch 7 guided bolt 29. The drive means are not essential to the invention and are therefore not illustrated in detail.

The retraction of the roller latch 7 by means of the lock cylinder actuation is possible via a change lever 30. This takes place against the force of a latch spring 31 acting on the roller latch. This sits on a standing pin 32 of the lock housing 2. The change lever 30 is mounted around a pin 33 of the latch housing 2. This extends in the vicinity of the faceplate 1, below the roller latch 7 and Above the last wheel 26. The alignment of the change lever 30 runs approximately parallel to the face plate 1. The change lever 30 is designed with two arms and has the longer lever arm 34 and the shorter lever arm 35. The longer lever arm 34 extends parallel to the face plate 1 and ends at the end a step into an end portion 34 'facing the lock. This plunges into a receiving space 36, designed as a pocket, of the trap tail 10. Two opposite stops 37, 38 are formed by the receiving space 36. In case 7 occurs, caused by the latch spring 31, the stop 37 acts on the end section 34 'of the change lever 30. In turn, the change lever 34 is supported by a fixed stop 39, which in the exemplary embodiment is designed as a grub screw. The grub screw fixed stop 39 passes through a bore 40 of the face plate 1 and is screwed into an internal thread 41 of a bearing block 42. A faceplate countersunk screw 43 is used to hold it. The free end of the grub screw fixed stop 39 strikes a step 44 of the longer lever arm 34.

The shorter lever arm 35 forms a shoulder 35 ′ that runs approximately perpendicular to the face plate 1 and lies in the path of movement of a butt edge 27 ′ of the drive rod connecting slide 27 guided on the face plate 1.

A torsion spring 45 is placed on the pin 33 for the change lever 30. One end 45 'of which is supported on a recess 46 of the bearing block 42. The other end 45' 'lies in a relaxed position in front of the shoulder 35' of the shorter lever arm 35. This torsion spring 45 serves as a drive rod return spring. Their spring travel preferably corresponds to the maximum swivel travel of the change lever 30.

Furthermore, a lever ratio of 1:10 is provided between the shorter lever arm 35 and the longer lever arm 34. With a displacement path of the connecting rod connecting slide 27 by 1 to 1.3 mm, the change lever 30 pulls the latch 7 back by approximately 10 mm.

The following mode of action occurs:
The retraction of the roller latch 7 can be done in a known manner on the one hand by the lock nut 13. After running through a corresponding game, the stop 38 of the latch tail 10 acts on the change lever and pivots it. The bolt 29 is closed from its pre-closing position by key actuation. The ring gear 23 is dragged clockwise. The connecting rod slide 27 experiences an upward displacement via the final gear 26 of the reduction gear U. In the closed position shown in Figure 3, the key can then be removed from the lock cylinder. Then the abutting edge 27 'is in contact with the one end 45''of the drive rod return spring 45. Out of this position the roller trap 7 can be retracted by continuing the closing rotation of the cylinder core in the clockwise direction. Here, the connecting rod connecting slide 27 moves further in the upward direction and acts upon the shorter lever arm 35 of the change-over lever 30, with the end 45 ″ of the return spring 45 being interposed, connected to a pivoting thereof. Its longer lever arm 34 acts on the stop 37 and pulls the latch 7 back against the force of the latch spring 31 loading it. In this process, the drive rod return spring 45 is charged. After the closing rotation has ended, the latch spring 31 causes the latch 7 to advance with the change lever 30 being carried along. The advance of the roller latch 7 is limited when the change lever 34 acts on the grub screw fixed stop 39. Simultaneously with this process, the drive rod return spring 45 relaxes, the movable end 45 ″ of which moves the drive rod connecting slide 27 back into the basic position according to FIG. Along with its movement, the ring gear is rotated via the reduction gear, taking the locking member of the locking cylinder with it, so that the key can then be removed from the locking cylinder without further locking rotation.

If the leading position of the roller trap is to be changed, this can be done by screwing in or unscrewing the grub screw fixed stop from the faceplate.

If necessary, the fixed stop could also enable quick adjustment, for example via control cams etc.

The spring 45, which is acted upon by the abutting edge 27 ', has a strength such that it is under tension can push back both the connecting rod connecting slide, as well as the associated locking elements and the gearwheel gear, together with the locking cylinder, when the cylinder actuation stops during the alternating actuation. The torsion spring 45 is tensioned due to the small spring travel of its arm 45 '' only when the switch is actuated. During the transition from the neutral position (FIG. 4) to the change confirmation position (FIG. 5), the spring is acted upon by the abutting edge 27 ′ on the spring arm 45 ″ and tensioned. Along with this, the change lever 30 is displaced, since in the intermediate position of the spring arm 45 'the change lever arm 35 is acted on at the abutting edge 35'.

In the exemplary embodiment shown in FIGS. 8-12, a butt edge 27 'of the connecting rod connecting slide 27 directly acts on a butting edge 35' of the lever arm 35 of the change lever 30. The push rod connecting slide return spring 45 '' is thereby arranged by a cam 51, which is also arranged on the connecting rod connecting slide 27 is acted upon. The cam 51 comes against the end 45 ″ of the spring 45. The spring 45 is a spiral spring and anchored on the other side in the lock housing in a rotationally fixed manner. The spiral spring 45 is wound around a pin 33 which at the same time forms the axis of rotation of the change lever 30. As can be seen in particular from FIG. 8, in the neutral position, that is to say when the change lever 30 is not actuated and the latch 29 is not actuated, the connecting rod connecting slide return spring 45 is not tensioned. Only when the connecting rod connecting slide 27 is moved upwards in the illustration as a result of the lock actuation does the cam 51 move the spring 45 by acting on the end 45 ''. As a result of this tension, the connecting rod connecting slide including the drive gear and, if applicable, available Espagnolette locks can be moved back to the neutral position when the lock actuation is interrupted. Along with the drive rod shifting into the position according to FIG. 10, a butt edge 35 'of the lever arm 35 of the change lever 30 is acted upon. By pivoting the change lever 30, the trap is then withdrawn.

As can be seen from the figures, the last wheel 26 has small-diameter toothing 26 ″, which interacts with correspondingly opposing toothing of the drive rods 27, 28, so that the two drive rods 27, 28 are displaced in the opposite direction by rotation of the gearwheel 26. Spaced axially to the axis of rotation of the last wheel 26, the last wheel 26 has a larger toothing. This toothing meshes with a toothing of an upstream drive wheel. The larger-diameter toothing has a peripheral region 26 'which is not toothed. The position of the tooth-free area 26 'is selected so that when the drive rod lock, in particular the toothed drive, is actuated, it is ensured that the drive gear of the upstream gear always engages in the toothed area of the last gear. However, it is provided that when the drive rod is displaced from the neutral position shown in FIG. 8 into the locking position shown in FIG. 11, the cams 51 of the drive rod connecting slide 27 dive through the toothless region 26 ′ of the last wheel 26.

In the exemplary embodiment, the connecting rod connecting slide 26 runs directly adjacent to the cuff 1. However, the toothed area of the last wheel 26 with a larger diameter has such a diameter that it has the Push rod connecting slider protrudes and protrudes almost up to the cuff 1.

It should be noted that in the exemplary embodiment of the invention for moving the connecting rod connecting slide from the locking position (FIG. 11) beyond the neutral position (FIG. 8) into the change-over actuation position (FIG. 10), the final wheel 26 does not rotate through 360 °. Rather, the rotation of the last wheel 26 is reduced by the non-toothed angular section.

Advantageously, the diameter of the larger toothing of the last wheel 26 corresponds approximately to the distance between the cuff 1 and the pusher housing 12 or pusher nut 13.

The features of the invention which are disclosed in the above description, the drawing and the claims can be of importance both individually and in any combination for the implementation of the invention. All the features disclosed are essential to the invention. The disclosure content of the associated / attached priority documents (copy of the prior application) is hereby also included in full in the disclosure of the application.

Claims (15)

Espagnolette lock with a reduction gear, a lock gear actuatable, parallel to the faceplate movable connecting rod connecting slide and according to a change lever that can be acted upon by a stop associated with the connecting rod connecting slide, can be locked transversely to the faceplate, characterized in that the forward position of the latch (7) is adjustable by an adjustable play of the change lever ( 30) is adjustable. Espagnolette lock according to claim 1 or in particular according thereto, characterized in that the change lever (30) extends approximately parallel to the faceplate (1). Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that an adjustable fixed stop (39) which limits the pivotability of the change lever (30) is provided in order to adjust the play of movement. Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that the fixed stop (39) can be actuated on the cuff side and is designed as a grub screw acting on the change lever (30). Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that the change lever (30) designed as a two-armed lever has one lever arm (35) at its end can be acted upon by an end abutting edge (27 ') of the connecting rod connecting slide (27). Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that the abutting edge (27 ') acts upon the change lever (30) with the interposition of an espagnolette return spring (45), the spring travel of the espagnolette return spring (45) preferably the maximum pivoting path of the change lever (30) corresponds. Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that the latch (7) designed in the form of a roller latch has a box-shaped profile section (9) which projects over the faceplate (1) in the maximum adjustable forward position. Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that the latch (7) on the case tail side has a receiving space (36) for the longer lever arm (34) of the change lever, in particular in the form of a pocket and having two opposite stops (37, 38) (30) has. Espagnolette lock according to one or more of the preceding claims or in particular according thereto, characterized in that the transmission ratio of the change lever arms (35, 34) is 1:10, wherein preferably a displacement return path of 10 mm is associated with a displacement path of the espagnolette connecting slide by 1 to 1.3 mm . Espagnolette lock or closure with a gear-driven, from a first position corresponding to a release position to a second position corresponding to a locking position, displaceable connecting rod connecting slide (27), with a lock cylinder or the like interchangeable latch (7), a change lever (30) from which Beyond the first position, a drive rod connecting slide (27) which can be shifted to a change actuating position can be actuated, characterized by a drive rod return spring (45) which is provided by a stop surface (27 ', 51') assigned to the drive rod connecting slide during the transition from the first is stretched into the third position and its elasticity is sufficient to automatically move the connecting rod connecting slides (27, 28) and, if necessary, connecting rod closures back to the first position. Espagnolette lock or closure according to one or more of the preceding claims or in particular according thereto, characterized by two oppositely displaceable espagnolette connecting slides (27, 28) which are driven by a final gear 26 of a gear transmission engaging with its output teeth in a toothing of the espagnolette connecting slide (27, 28) become. Espagnolette lock or closure according to one or more of the preceding claims or in particular according thereto, characterized in that the espagnolette connecting slide (27) runs directly adjacent to the cuff (1). Espagnolette lock or closure according to one or more of the preceding claims or in particular thereafter, characterized in that the connecting rod connecting slide return spring (45) acts on a cam (51) of the connecting rod connecting slide (27). Espagnolette lock or lock according to one or more of the preceding claims or in particular according thereto, characterized in that the cam (51) passes through a tooth-free region (26 ') of the output teeth of the last wheel (26), in particular when changing from the first to the second position . Espagnolette lock or lock according to one or more of the preceding claims or in particular according thereto, characterized in that the diameter of the drive teeth of the last wheel (26) corresponds approximately to the distance between the follower nut (13) or the follower nut housing (12) and cuff (1).

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