EP0632179B1 - Locking device for windows, doors or similar - Google Patents

Abstract

The invention relates to a device for locking windows, doors or the like, having at least one base plate, exhibiting a bearing eyelet, and a pin which is mounted in said base plate and passes through a securing plate, it being possible to arrest the pivoting capacity of the securing plate by actuating an actuating part designed, in particular, as a pressure cylinder. In order to achieve a spatially smaller structural form, the intention being for the opening/rotary forces acting in the locking position not to have an effect on the pressure cylinder, the invention proposes that, by virtue of axial displaceability, it be possible to move at least one pin portion of the pivot pin of the securing plate into positively locking engagement with respect to the bearing hollow of the bearing eyelet. <IMAGE>

Description

The invention relates to a device for locking windows, doors or the like, with a base plate forming a bearing eye and a locking plate extending between the bearing eyes and penetrated by an axis, the pivotability of which can be blocked by relocating an actuating part, in particular in the form of a pressure cylinder.

In a known embodiment (DE 39 21 492 A1) sits a locking pin at the inner end of the cylinder core, which engages in an edge recess of the securing plate on the one hand and in a partial bore of the base plate when the pressure cylinder is shifted into the locked position. Beyond the receiving opening for the locking pin, the bore for receiving the axis carrying the securing plate runs in the bearing eyes, so that this results in an overall larger design.

The object of the invention is based on the object of designing a device of the type in question in a technically simple manner in such a way that, in addition to a spatially smaller design without reducing the stability in the locking position, the opening torque does not act on the pressure cylinder.

This object is achieved in a generic device by an axial displacement. The axle itself or an axle section can be axially displaced. Along with the shift, an out-of-round section of the axle comes into effect with a region of the bearing eye or the bearing cavity of the securing plate which is adapted to the cross section. By shifting the axle the transition from the non-locking to the locking position of the securing plate takes place with the inclusion of a positive fit. Preferably, the axis section deviating from the circular cross-sectional contour acts to achieve the blocking effect together with a respective front area of a cross-section-adapted bearing cavity of the securing plate and cross-section-adapted areas of the bearing eyes.

As a result of such a configuration, a generic device with a spatially small structure and high safety value is specified. The axis of the pressure cylinder and that of the securing plate are now arranged coaxially and are not offset from one another as in the prior art. This leads to the spatially compact structure of the device, combined with a material saving and a lower weight. However, this is not at the expense of security. Rotary opening forces acting on the locking plate in the locking position no longer have to be absorbed by the pressure cylinder. Rather, they are directed via the axis sections deviating from the circular cross-sectional contour into the cross-section-adapted partial areas of the bearing eyes. At the same time, the axial sections are in positive engagement with the sections of the bearing cavity of the securing plate that are adapted to the cross section. If the pressure cylinder is brought into its open position, its displacement is transferred to the axle sections. Then there is only one axle section in coupling connection with the bearing cavity of the securing plate, which enables the same to be pivoted. The other axle section, on the other hand, has left the bearing cavity and does not affect the rotation of the locking plate.

An advantageous further development consists in that two axle sections separated from a cylindrical intermediate area are provided. The cylindrical intermediate region preferably starts from the axle section assigned to the pressure cylinder. In the unlocked position, only the cylindrical intermediate area projects beyond the associated bearing eye. The other axis section is then not in the bearing eye that is coming to it and allows the locking plate to rotate freely about the axis. In the locking position, that is to say after the previous displacement of both axle sections, the intermediate region then extends approximately centrally between the two bearing eyes.

It should also be emphasized that the axis sections have a polygonal, preferably square, contour. The width across flats of the square contour is then the same or slightly larger than the diameter of the cylindrical intermediate area, so that the securing plate has optimum position stability even in the unlocked position. This results from the fact that the bearing cavity, which also has a square contour, is also adapted to the diameter of the cylindrical intermediate region.

The rotatability of the locking plate in the unlocking position is ensured by the fact that at least one axle section is freely rotatable on the axle.

A further advantageous feature is characterized by a bearing collar which is assigned at the end to an axle section and which lies in a bearing eye when the axle position is not blocking. In this position, too, there is a bridge-shaped support of the axis with the resulting high stability of the device.

The above fact is optimized in that the bearing collar is cylindrical and its diameter is adapted to the inside diameter of the square profile of the bearing eye.

The fact that the cavity is formed by a square hollow profile contributes to simple manufacture. This is to be connected to the locking plate. The square hollow profile can be cut to the appropriate size in a simple manner. The length corresponds to the distance between the two bearing eyes, so that an immovability in the axial direction is also guaranteed.

Rotation limit stops are formed in a simple manner by a slot which runs in the circumferential direction of the cavity and has two stop edges, for the entry of a stop pin extending from the base plate.

The fact that the width of the base plate corresponds to the external dimension of the square hollow profile contributes to a narrow design. This measure also gives the device a cheap appearance.

Figur 1

zwei als Zusatzsicherung dienende Vorrichtungen zur Verriegelung an einem Doppelfenster unter Wiedergabe der jeweiligen Wendeposition der Sicherungsplatte,

Figur 2

die dem linken Fenster zugeordnete Vorrichtung in Einzeldarstellung mit in seiner Freigabestellung befindlichem, einen Schlüssel aufnehmendem Druckzylinder,

Figur 3

die Draufsicht auf Figur 2,

Figur 4

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

Figur 5

eine der Figur 4 entsprechende Darstellung, wobei die unrunden Achsabschnitte sowie der zylindrische, zwischen beiden befindliche Zwischenbereich nicht geschnitten dargestellt sind,

Figur 6

den Schnitt nach der Linie VI-VI in Figur 4,

Figur 7

den Schnitt nach der Linie VII-VII in Figur 4,

Figur 8

den Schnitt nach der Linie VIII-VIII in Figur 4,

Figur 9

in etwa natürlicher Größe eine Ansicht der Vorrichtung in entriegelter Stellung bei fortgelassener Sicherungsplatte,

Figur 10

einen der Figur 4 entsprechenden Schnitt, betreffend die Verriegelungsstellung, und zwar bei einwärts verlagertem Druckzylinder, und

Figur 11

die der Figur 5 entsprechende Darstellung, wobei abweichend von dieser die verlagerte Stellung der Achsabschnitte vorliegt.

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

Figure 1

two devices serving as additional security devices for locking on a double window, showing the respective turning position of the security plate,

Figure 2

the device assigned to the left window in individual representation with in its release position located pressure cylinder holding a key,

Figure 3

the top view of Figure 2,

Figure 4

the section along the line IV-IV in Figure 2,

Figure 5

4 shows a representation corresponding to FIG. 4, the non-circular axis sections and the cylindrical intermediate region located between the two being not shown in section,

Figure 6

the section along the line VI-VI in Figure 4,

Figure 7

the section along the line VII-VII in Figure 4,

Figure 8

the section along the line VIII-VIII in Figure 4,

Figure 9

approximately in natural size, a view of the device in the unlocked position with the securing plate omitted,

Figure 10

4 a section corresponding to FIG. 4, relating to the locking position, specifically with the pressure cylinder displaced inward, and

Figure 11

the representation corresponding to FIG. 5, the deviating position of the axle sections being different from this.

A window frame 1 is assigned two window sashes 2 and 3, which in turn are designed as turn / tilt window sashes. The window sash 2, 3 point to this the usual turn / tilt fittings 4. Furthermore, devices 7 for additional locking of the window sashes 2, 3 are provided above the handle 5 on the middle frame leg 6 at the same height next to one another.

The two window sashes 2, 3 differ in that their stop legs are of different thicknesses. Thus, the stop leg of the window sash 2 is thicker than that of the window sash 3. The difference in thickness is compensated for by a locking plate 8 of the device, which, due to the appropriate installation, is at a different distance from the front of the window frame.

In detail, the device 7 has a rectangular base plate 9 with screw holes 9 ', from which bearing eyes 10, 11 extend at right angles to form a U-profile. The bearing eye 10 has a sleeve 12 on the outside for receiving the jacket housing 13 of a pressure cylinder 14. In the jacket housing 13, the cylinder housing 15 is guided so as to be longitudinally displaceable. In the inwardly displaced position of the cylinder housing 15, this latches on the casing housing 13. By inserting the key in the cylinder core 16 and rotating the same, the catch can be triggered, so that the cylinder housing 15 enters the forward position when it is under pressure.

In the bearing eyes 10, 11, mutually aligned partial areas 17, 18 formed in the form of square openings are recessed. There is a square cross-sectional shape of the same. The center thereof is aligned with the axis of the printing cylinder 14. The partial region 17 interacts with an axis section 19, which has an adapted shape Has a square contour. A cylindrical intermediate region 20 adjoins the axis section 19 in the same material. In the unlocking position, cf. in particular FIG. 5, the intermediate section 20 begins at the level of the inner surface 10 'of the bearing eye 10. The intermediate region 20 merges into the square axis section 19 via an obliquely rising zone 19'. The diameter of the cylindrical intermediate region 20 is as large as the wrench size of the square shaft section 19. Furthermore, the cylindrical intermediate region 20 has a length that corresponds to two thirds of the distance between the bearing eyes 10, 11.

The axle section 19 and the cylindrical intermediate region 20 adjoining it in one piece are provided with a central bore 21 which continues into a larger bore section 22 starting from the free end of the intermediate region 20. A sleeve 23 projects into this and forms a circular cylindrical bearing collar 24 of larger diameter at its free end. The diameter of the same is adapted to the inside diameter of the polygonal profile or the square opening 18, so that in the unlocked position according to FIGS. 4 and 5 the bearing collar 24 projecting into the square opening 18 receives a fourfold line support distributed over the circumference. The free end of the sleeve 23 is supported on the step 25 formed by the bore 21 and the bore section 22 and is braced against it. A screw 26, which passes through a central bore 27 of the bearing collar 24 and the sleeve 23, is used for bracing. Furthermore, the screw 26 extends through the bore 21 and engages in an internal thread 28 of the cylinder core 16. In the clamping position, the outer end face of the bearing collar 24 is approximately flush with the outer surface of the bearing eye 11. Likewise is the transition stage 29 between the sleeve 23 and the bearing collar 24 approximately at the level of the inner surface of the bearing eye 11, see FIG. 4, which corresponds to the unlocked position.

Another axis section 30 is rotatably arranged on the sleeve 23 between the transition stage 29 and the free end of the cylindrical intermediate region 20. The cross section of the axle section 30 also deviates from the circular shape and is designed as a square. Its width across flats corresponds to the inside dimension of the square opening 18. Furthermore, the outside contour of this axis section 30 is adapted to that of the axis section 19.

According to FIGS. 4 and 5, both the cylindrical intermediate region 20 and the axle section 30 pass through a bearing cavity 31, which is formed by a square hollow section 32. There is therefore a square bearing cavity 31 for the positive reception of the axle section 30. Furthermore, the square hollow section 32 can be supported linearly on the cylindrical intermediate area 20 according to the unlocking position in FIGS. 4 and 5. The square hollow section 32 is adapted in length to the inner distance between the two bearing eyes 10, 11, so that an additional axial position securing is not necessary. The outer dimension of the square hollow section 32 is then somewhat smaller than the width of the base plate 9.

The square hollow section 32 is the carrier of the securing plate 8. The thickness of the latter is approximately half the width across flats of the square hollow section 32. The one broad side surface 8 'of the securing plate 8 closes flush with the one square outer surface of the square hollow section 32, see FIG. 7 in particular. In this position there is a greater distance between the screw-on surface of the base plate 9 and the other broad side surface 8 ″, so that the thicker leg of the window sash can be gripped. When the securing plate 8 is turned by 180 °, the corresponding distance is then defined by the broad side surface 8 '.

In the center, the square hollow section 32 is provided with a slot 35 which runs in the circumferential direction of the bearing cavity 31 and forms two stop edges 33, 34. A stop pin 36 extending from the base plate 9 engages therein. As shown in Figure 7, the stop edge 33 is supported on the stop pin 36.

The following mode of action occurs:
In the unlocked position according to FIGS. 4 and 5, the securing plate 8 including the square hollow section 32 is positively coupled to the axle section 30. The locking plate 8 can thus be rotated together with the axis section 30 about the axis xx, that is to say brought into a release position for the window sash. The other axis section 19, however, has completely emerged from the bearing cavity 31 of the square hollow section 32, lies in the square opening 17 and does not impair the rotational displacement of the securing plate 8.

If the locking position of the securing plate 8 overlapping the impact leg is desired, this requires the pressure cylinder 14 to be acted upon while simultaneously carrying the axle section 19 with the cylindrical intermediate region 20, axle section 30 and bearing collar 24 into the position according to FIGS. 10 and 11. In its end position locks the pressure cylinder 14. Then, the axle section 19 extends both in the square opening 17 and in the shape-matched bearing cavity 31. Furthermore, the other axis section 30 has shifted so that it is in a form-fitting relationship with the bearing cavity 31 and the other Square opening 18. In this way, a double rotation lock for the locking plate 8 is formed. During this shift into the locking position, the bearing collar 24 has completely left the square opening 18. So that the displacement, in particular, of the axle section 30 can take place largely without any problems, the axle section 30 forms a conical run-out surface 37 at its end facing the square opening 18.

If unlocking is desired, this requires the insertion of a key 38 into the cylinder core 16. By rotating the key 38 by a small amount of the angle, the locking of the cylinder housing 15 to the jacket housing 13 is released, so that the cylinder housing 15 is pressurized by spring pressure into that shown in FIG. 4 and 5 illustrated position. At the same time, the axle sections 19, 30 are taken along. The square axle section 19 completely leaves the bearing cavity 31 of the square hollow section 32 carrying the securing plate 8 and dips into the square opening section 17 and the adjoining sleeve 12. The other axis section 30, on the other hand, leaves the square opening sub-area and then lies completely in the bearing cavity 31. Because of the then free rotation of the axle section 30, the securing plate 8 can also be pivoted into the position releasing the relevant impact leg of the window sash.

Claims (12)

1. Device for the locking of windows, doors or the like with a base plate having at least one bearing eyelet, and a shaft supported in the bearing eyelet and passing through a securing plate, it being possible to block the ability of the securing plate to pivot by operating an actuating component constructed especially as a pressure cylinder, characterised by an axially displaceable shaft section (19, 30) deviating from the circular cross-sectional contour, which for achieving the blocking action works together with a bearing cavity (31) of the securing plate (8) adapted to the cross section and a region (17, 18) of the bearing eyelet (10, 11) adapted to the cross section.
2. Device according to Claim 1, characterised in that for achieving the blocking action the shaft section deviating from the non-circular is displaced in a part region of the bearing eyelet adapted to the cross section.
3. Device according to one or several of the preceding claims in that at least two bearing eyelets are provided between which the shaft extends.
4. Device according to one or several of the preceding claims, characterised in that a shaft section works together with a part region on the end face of a bearing cavity (31) of the securing plate (8) adapted to the cross section and/or one from a part region (17, 18) of the bearing eyelet (10, 11) adapted to the cross section.
5. Device according to one or several of the preceding claims, characterised in that two shaft sections (19, 30) separated by a cylindrical intermediate region (20) are provided.
6. Device according to one or several of the preceding claims, characterised in that the shaft sections (19, 30) possess a polygonal, preferably square, contour.
7. Device according to one or several of the preceding claims, characterised in that at least one shaft section (30) is arranged in freely rotatable manner on the shaft (x-x).
8. Device according to one or several of the preceding claims, characterised by a bearing collar (24) which is allocated at one end to a shaft section (30) and in the non-blocking shaft position lies in a bearing eyelet (11).
9. Device according to one or several of the preceding claims, characterised in that the bearing collar (24) is designed in cylindrical manner and is adapted in diameter to the internal diameter of the square opening of the bearing eyelet (11).
10. Device according to one or several of the preceding claims, characterised in that the bearing cavity (31) is formed in the securing part (8) by a square hollow section (32).
11. Device according to one or several of the preceding claims, characterised by a slot (35) extending in the circumferential direction of the bearing cavity (31) and forming two limit stop edges (33, 34) for the entrance of a limit stop pin (36) emanating from the base plate (9).
12. Device according to one or several of the preceding claims, characterised in that the width of the base plate (9) corresponds to the overall size of the square hollow section (32).

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