EP0602323B1 - Lock with driving rod - Google Patents

Abstract

The invention relates to a driving-rod lock having a latch which emerges out of the lock-case front and can be actuated by a nut and having at least one driving-rod connection slide, and, in order to achieve a design which is more advantageous in terms of use, the invention proposes a crosswise arrangement between one angle leg (18), running parallel to the lock-case front (1), of the driving-rod connection slide (19) and the latch tail (5'') such that the nut (40) and its point of engagement on the latch tail (5'') are located on the other side of the angle leg (18), parallel to the lock-case front, from the latch head (5'). <IMAGE>

Description

The invention relates to an espagnolette lock according to the preamble of claim 1.

Such a lock is known from French document 2 488 318. With this lock, the latch can only be withdrawn using a follower.

Another espagnolette lock is known from EP 0 454 960 A2, the cuff-parallel angle leg of the espagnolette connecting slide extending at a distance behind the latch tail when a latch has occurred. The retraction of the trap takes place in such a way that an arm of the nut moves a spring-loaded actuating slide parallel to the cuff when the nut rotates, which in turn pivots a three-armed deflecting member. One arm engages the trap tail and pulls the trap inside the lock. For alternating actuation, a vertically rising slide acts on another arm of the deflection member, which slider converts the closing rotation of the cylinder core of an inserted locking cylinder into a retraction of the trap via the deflection member.

The object of the invention is based on the object of developing a generic espagnolette in a manner which is advantageous for use.

The object is achieved by the invention specified in claim 1.

The crossing arrangement between the one, parallel to the cuff angle leg of the connecting rod connecting slide and the trap tail such that the nut and its point of attack on the trap tail are on the other side of the cuff-parallel angle leg than the trap head, has been added to the effect that a change-over operation is now possible.

As a result of such an embodiment, a generic drive rod lock is specified which, in addition to a spatially smaller structure in the area of engagement of the latch tail, is characterized by increased stability and improved locking method. The latch tail and the cuff-parallel angle leg of the connecting rod connecting slide intersect both in the forward and in the retracted position of the latch. So there is no space between the gauntlet parallel to the gauntlet and the trap tail. The trap tail area, which points beyond the crossing point in the direction of the nut, serves as the point of attack for the nut. In addition, the direct attack of the nut on the trap tail beyond the crossing area is cheaper than the indirect retraction of the nut via the deflection member. Furthermore, the direct attack of the nut beyond the area of intersection between the trap tail and the cuff-parallel angle leg leads to a more stable structure, combined with a long, trouble-free service life of the drive rod lock.

An advantageous further development of the invention can be seen in the fact that the trap tail is angled in a Z-shape on the trap head side of the crossing region. It is thus possible that the point of engagement of the nut on the latch tail can lie below the longitudinal center of the latch in order to take account of the structural conditions of the espagnolette lock.

It proves advantageous that one arm of an angular deflection member of a change lever arrangement engages on the Z-web. In contrast to the state of the Technology, the deflection element is designed exclusively angular. A vertically rising, plunger-like intermediate element engages on one arm of the deflecting element, while the other arm of the deflecting element serves to retract the trap. Its attack is advantageously carried out on the Z web, that is to say on the side of the intersection area opposite the nut attack point.

A change operation which is favorable in terms of locking technology results from a change in the position of the point of application on the Z-web depending on the pivoting angle of the deflecting member in such a way that the point of application is at a greater distance from the pivot point as the pivoting angle increases. The lever arm ratio in the initial phase of retraction of the latch is therefore more favorable than when the latch is retracted, if the latch has largely left the striking plate opening. The alternating operating force applied by the key therefore acts optimally on the latch tail and facilitates a closing operation.

Another advantageous preferred embodiment of the invention can be seen in the fact that the starting area of the trap tail facing the trap head is designed as an exchangeable mandrel. Different backset dimensions only require the appropriate length of the mandrel, combined with a simplification of production.

With a larger backset, it proves to be advantageous to provide an intermediate guide for the backing. The intermediate guide is preferably arranged when the backset becomes larger than 50 mm.

Furthermore, good guiding of the connecting rod connecting slide is ensured, which is characterized by that from the trailing tail parallel angle leg of the connecting rod connecting slide a crossing to the trailing tail section extends, which engages over a fixed guide web of the lock bottom. The guide bar of the lock base can be made by pressing out, so that additional lock components are not required. When the lock cover is in place, the guide section is secured in its position relative to the guide web, so that the guide is not inadvertently given up.

Finally, it is also advantageous if the Z-shaped angled portion lies in the area between the guide section and the parallel leg of the drive rod connecting slide parallel to the cuff. Thus, the space between the guide section and the cuff-parallel angle leg of the connecting rod connecting slide is used to accommodate the Z-shaped bend, in which area the deflection member itself engages.

Figur 1

eine Ansicht eines erfindungsgemäß gestalteten Treibstangenschlosses bei fortgelassener Schloßdecke unter Veranschaulichung der Offenstellung des Treibstangenschlosses,

Figur 2

in vergrößerter Darstellung die Ansicht des Schlosses im Bereich der Falle sowie der Nuß, ebenfalls die Offenstellung betreffend,

Figur 3

eine der Figur 2 entsprechende Darstellung, jedoch bei mittels Wechsel zurückgezogener Falle,

Figur 4

den Schnitt nach der Linie IV-IV in Figur 3,

Figur 5

den Schnitt nach der Linie V-V in Figur 2,

Figur 6

eine Ansicht der Falle und

Figur 7

eine Ansicht des Treibstangen-Anschlußschiebers.

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

Figure 1

1 shows a view of an espagnolette lock designed according to the invention with the lock cover removed, illustrating the open position of the espagnolette lock,

Figure 2

in an enlarged view the view of the lock in the area of the trap and the nut, also regarding the open position,

Figure 3

2 shows a representation corresponding to FIG. 2, but with the trap withdrawn by means of a change,

Figure 4

the section along the line IV-IV in Figure 3,

Figure 5

the section along the line VV in Figure 2,

Figure 6

a view of the trap and

Figure 7

a view of the connecting rod connecting slide.

The espagnolette lock shown has a lock housing 2 connected to a cuff 1. The cuff projecting over the lock housing 2 on both sides catches an upper and a lower drive rod 3, 4 emerging from the lock housing 2. The latter are provided in a known manner with locking members which have counter-locking parts on the frame side work together.

In the upper area of the lock housing 2, a latch 5 is passed through the cuff 1, which is composed of a latch head 5 'and a latch tail 5 ". Furthermore, a latch 6 is guided below the latch 5 in the lock housing 2. This engages through a cross-section-adapted opening 7 the cuff 1.

A lock base 8 and a lock cover 9 extend at right angles to the cuff 1. In their lower region of the lock housing 2, they hold a support plate 10 between them. This supports a toothed ring 12 which forms a radial gap 11 in its lower region. The latter is penetrated by a profile Lock cylinder 13, which is positively received by lock cylinder insertion openings in the lock base 8 and lock cover 9. The axis of rotation of the cylinder core and thus a closing element of the profile locking cylinder, indicated by dash-dotted lines is eccentric to the axis of rotation of the ring gear, below it.

With the external toothing of the ring gear 12 mesh two output gears 14, 15. Despite the locking cylinder through-gap 11 in the ring gear 12 it is achieved that the ring gear 12 meshes with at least one output gear 14 or 15. The rotation of the driven gears 14, 15 is transmitted via further reduction gears (not specified in any more detail) to an end wheel 16 which meshes with a toothed rack 17 guided parallel to the cuff 1. The latter is coupled to the one angle leg 18 of an angular drive rod connecting slide 19. The aforementioned angle leg 18 likewise runs parallel to the cuff 1, while the other angle leg 18 ′ runs towards the cuff 1 in a vertical orientation. The free end of this angle leg 18 ′ carries the upper drive rod 3.

The aforementioned rack 17 is used to control the bolt 6, which is closed or closed depending on the rotation of the end wheel 16 via the rack 17. However, this is state of the art, so that it will not be discussed in more detail.

Another component of the lock mechanism is an actuating arm 20 which is mounted between cuff 1 and ring gear 12 about a journal 21. The journal 21 is seated in an arch slot 10 'of the carrier plate 10, so that the actuating arm 20, in addition to its pivoting movement, also carries out an upward displacement in the arch slot 10' can The actuating arm 20 is designed as a hook pawl pointing in the circumferential direction of the ring gear 12 and is loaded by a torsion spring 22 in the direction of engagement with a hook projection 23. in the the rest of the actuating arm 20 is part of a change lever arrangement W. In the open position of the espagnolette lock, an intermediate link 24, which is guided approximately parallel to the cuff 1, by attacking the shorter lever arm of the actuating arm 20 prevents it from entering the path of movement of the tooth 23 of the ring gear 12. The intermediate member 24 is part of a change lever arrangement W and is under the action of a compression spring 25 which shifts the intermediate member 24 into a stop-limited lower position.

The upper end 24 'of the intermediate member 24 represents a plunger which interacts with an arm 26 of an angularly shaped deflection member 27. The deflection member 27 is mounted around a stationary stud 28. The aforementioned arm 26 connects with the other arm 29 of the deflection member 27 at an angle of approximately 90 ° and serves to retract the latch 5. Thus, the deflection member 27 is also part of the change lever arrangement W. A torsion spring 30 arranged on the standing pin 28 is supported on the one hand on the housing and on the other hand on the latch tail 5 ″ and thus represents the latch spring.

The end wheel 16 also acts in a manner not shown, but in a known manner, with a lower connecting rod connecting slide 31, which in turn carries the lower connecting rod 4. On the connecting rod connecting slide 31, a driver projection 32 is arranged, which serves to control the intermediate member 24.

The structure of the trap 5 is particularly apparent from Figure 6. The starting area of the trap tail 5 '' facing the trap head 5 'is designed as an interchangeable mandrel 33 of circular cross-section. The mandrel 33 is in turn firmly connected to the trap head 5 ', for example by injection molding. The end of the mandrel 33 opposite the latch head 5 'is inserted into the end region of the latch tail 5''and secured in its position by a grub screw 34. The grub screw 34 interacts with an end annular groove 35 of the mandrel 33. The end region of the trap tail 5 '' is designed as a molded part F and, in conjunction with the mandrel 33, forms a Z-shaped trap tail 5 ''. The mandrel 33 forms the one Z-leg, to which the Z-web 36 connects. The latter continues in the Z-leg 37 running parallel to the Z-leg (mandrel 33). This is provided with an extension 38 facing the lock cover 9, on which the nut arm 39 engages a nut 40 mounted below the latch tail. A spring-loaded slide 41 loads the nut 40 counterclockwise into a stop-limited position, see FIG. 2.

Furthermore, the crossing arrangement between the angled leg 18 of the connecting rod connecting slide 19, which runs parallel to the cuff 1, and the latch tail 5 ″ also emerges in particular from FIG. This is such that the nut 40 and its point of engagement (extension 38) on the latch tail 5 '' is on the other side of the cuff-parallel angle leg 18 than the latch head 5 '. The Z-shaped bend on the trap head side extends on the trap head side of the intersection area.

The arm 29 of the angular deflection member 27 engages the Z-web 36. For this, the Z-web 36 is provided on the side facing the lock base 8 with a recess 42 into which the arm 29 projects. When latch 5 is closed, arm 29 lies with its central portion on a step 42 ′ of recess 42 , see FIG. 2. The slightly angled end 29 'of the arm 29 extends at a short distance from the driving surface 42 ", which merges into the step 42'.

On its side opposite the recess 42, the molded part F is surmounted by a guide rib 43, which in turn slides along the inner wall of the lock ceiling 9.

An intermediate guide 44 is assigned to the mandrel 33. This is designed as a support bracket and extends in a fixed manner between the lock base 8 and lock cover 9. The intermediate guide 44 limits the occurrence of the latch 5 in that the Z-web 36 acts on this intermediate guide 44, see FIG. 2.

From the trailing tail parallel parallel leg 18 'is directed downward, a guide section 45 lying to the trailing tail 5' 'or mandrel 33. On its surface facing the lock base 8 there extends a cuff-parallel slot 46, into which a guide bar 47 of the lock base 8 engages, which is pressed into the lock housing. Further guide webs 48, 49 are provided which guide the connecting rod connecting slide 19 in a corresponding manner.

The Z-shaped bend 36 of the latch tail 5 ″ lies in the region between the guide section 45 and the cuff-parallel angle leg 18 of the connecting rod connecting slide 19.

The following mode of action occurs:
The retraction of the latch 5 by means of the nut 40 requires the same to be rotated by means of an arbor clockwise. The nut arm 39 pulls the latch 5 back against the force of the torsion spring 30.

If the locking position of the espagnolette lock is to be brought about, the cylinder core of the profile locking cylinder 13 must be turned counterclockwise. At the same time, the ring gear 12 is rotated, which drives the end wheel 16 via the reduction gears. This displaces the connecting rod connecting slides 18, 31 in opposite directions. Furthermore, the bolt 6 is pre-locked via the rack 17. The closing is done by the opposite closing rotation.

If the latch 5 is also to be withdrawn by the closing rotation when the bolt 6 is closed, the closing rotation must be continued. In this case, the connecting rod connecting slide 31 is still displaced to a small extent and, with its driver projection 32, drags the intermediate member 24 against the force of the compression spring 25. As a result, the actuating arm 20 is released for pivoting so that it lies in the path of movement of the hook projection 23 of the ring gear 12. As soon as the actuating arm 20 and hook projection 23 engage one another, the intermediate member 24 is moved further upward, its plunger-like end 24 'acting on the arm 26 of the deflecting member 27 and rotating it, see FIG. 3. The middle region of the arm first comes 29 to the effect on the step 42 'of the Z-web 36. Because of the then favorable leverage ratio, even a small closing force can exert a large tensile force acting on the latch 5, for example in order to pull it out of the closing recess of a striking plate on the frame. With growing The pivoting angle of the deflection member 27 changes the position of the point of engagement of the arm 29 on the Z-web 36. This is done in such a way that the arm 29 takes up a greater distance from the pivot point (stud 28) as the pivoting angle increases. In Figure 3 it is illustrated that the arm 29 has fully retracted the latch 5. Then the angled end 29 'of the arm 29 acts on the driver surface 42 ". This means that the point of attack has shifted and is now at a greater distance from the pivot point 28. The invention has made use of the knowledge that after the trap has been pulled out the striking plate opening then requires less force.

If the key is turned back into its key withdrawal position, this entails entrainment of the ring gear 12, so that the lock components then return to their basic position according to FIGS. 1 and 2.

If espagnolette locks with a smaller or larger backset are to be created, the lock fittings can remain largely unchanged. Only a trap head 5 'with a longer or shorter mandrel 33 is used.

The espagnolette can be made spatially small in the area of the trap tail. Furthermore, there is a favorable closing method with a stable structure.

Claims (8)

1. Driving rod lock with a catch (5) emerging from the cuff plate (1) and operated by a nut (40), consisting of catch tail (5") and catch head (5') and at least one driving rod connecting slide (19) which is angle-shaped and with its angle arm (18') tapering in a direction towards the cuff plate extends above the catch more or less parallel to the catch tail, with an intersecting arrangement between the catch tail (5") and one angle arm (18) of the driving rod connecting slide (19) extending parallel to the cuff plate (1), and the catch tail (5"), in such a way that the nut (40) and its point of application to the catch tail (5") is located on the other side of the angle arm (18) parallel to the cuff plate than the catch head (5), characterised by a further point of application to the catch tail, which is arranged on the side of the region of intersection opposite the point of nut application and which is engaged by an arm (26) of a deflector member (27) for alternating operation.
2. Driving rod lock according to claim 1, characterised in that the catch tail (5") is bent into a Z shape on the catch head side of the region of intersection.
3. Driving rod lock according to claim 2, characterised in that the web of the Z is engaged by one arm (29) of an angled deflector member (27) of an alternating lever assembly (W).
4. Driving rod lock according to either of claims 2 or 3, characterised by a variation in the position of the point of application to the web (36) of the Z as a function of the pivot angle of the deflector member (27), such that the point of application with increasing pivot angle assumes a greater distance from the pivot point (28).
5. Driving rod lock according to one or more of the preceding claims, characterised in that the initial region of the catch tail (5") facing towards the catch head (5') is designed as an exchangeable mandrel (33).
6. Driving rod lock according to claim 5, characterised by an intermediate guide (44) of the mandrel (33).
7. Driving rod lock according to one or more of the preceding claims, characterised in that from the angle arm (18') of the driving rod connecting slide (19) which extends parallel to the catch tail, extends a guide section (45) which is located intersecting with the catch tail (5") and which overlaps a stationary guide web (47) of the lock bottom (8).
8. Driving rod lock according to claim 2 and at least claim 7, characterised in that the Z-shaped bent portion (36) is located in the region between the guide section (45) and the angle arm (18) of the driving rod connecting slide (19) which is parallel to the cuff plate.

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