EP1963603B1 - Driving-rod gear mechanism - Google Patents

Abstract

The invention relates to a driving-rod gear mechanism (1) for locking a casement (26) of a window (25), or a leaf of a door, comprising a displaceable driving rod (9) and a device or means by way of which a rotary movement of an operating lever (34) or the like is converted into a translatory movement of the driving rod (9). Provision is made here for the device or means to comprise a pivoting lever (10) and a guideway-driver connection (11) and for a constituent part of the guideway-driver connection (11) to be fitted eccentrically on a gearwheel (12). The gearwheel (12) is mounted in a rotatable manner in a housing (2) of the driving-rod gear mechanism (1), the pivot axes (17, 40) of the pivoting lever (10) and of the gearwheel (12) being offset in relation to one another.

Description

The invention relates to a drive rod transmission according to the preamble of claim 1.

Such Espagnolette gear are already known from the prior art. From the DE 10323704 A1 is a espagnolette gear for mounting in a fitting receiving groove of a window or a door has become known in which a pivot lever cooperates via a driver with a mounted on the drive rod backdrop. The swivel lever can be swiveled over an angular range of 180 °. The scenery extends partially above and partially below a rebate surface of the wing, so protrudes beyond the Beschlagaufnahmenut and is otherwise included in this.

From the DE 7107673 A1 is known a drive rod transmission, in which a pivot lever can be pivoted via a control lever. The pivot lever has a slot in which a driver is slidably mounted. Within the slot, the driver can be specified. The driver engages in a slot of a slide, so that upon rotation of the pivot lever, the slider is displaced over the driver. A displacement of the driver in the slot of the pivot lever causes a change in the achievable stroke of the espagnolette.

In addition, other espagnolette gearboxes have become known, which, similar to the first-mentioned prior art, try to achieve a maximum stroke with the smallest possible dimensions of the espagnolette gearbox. Here is the example WO 2004/076788 A1 , the DE 20308230 U1 and the DE 202004010424 U1 to call. In these documents, the gear used has a range of motion of 90 °. Such a drive rod transmission is therefore not suitable for use in a tilt-turn window, which has three functional positions, since the achievable stroke is not sufficient to adjust the various switching positions. In order to provide the required stroke, the known solutions employ a gear with a 90 ° toothed area. The pitch circle is dimensioned such that a 180 ° switching path could not be accommodated in the existing room conditions and corresponds to the conventional drive rod drives with a 90 ° operation. This allows the existing bolt engagements to continue to be used.

The invention is therefore based on the object to develop an espagnolette transmission according to the preamble of claim 1 so that it achieves a maximum stroke in a range of movement of the operating lever of 180 ° with the smallest dimensions.

The object is achieved with a drive rod transmission with the features of the characterizing part of claim 1.

The arrangement ensures that, for example, a 180 ° movement of the pivot lever leads to a rotational movement of the gear of more than 180 °. The drive rod can be moved according to the enlarged angle range.

In order to minimize the dimensions of the espagnolette, it is provided in a espagnolette, which is received in an open fitting receiving groove on the rebate surface of the wing, provided that the pivot axes lie on a plane perpendicular to the folding surface line.

In order to maximize the achievable stroke is provided that the pivot axis of the pivot lever is in the direction of the folding surface in front of the pivot axis of the gear. The axis of the operating lever is therefore in front of the folding surface and the pivot lever can dip in a movement in the Beschlagaufnahmenut.

In order to achieve a thrust reversal and / or to extend the achievable stroke is further provided that the gear is in driving connection with at least one intermediate gear, which cooperates with the drive rod. In order to expand the stroke, it is only necessary to design the pitch circle of the idler gear smaller than the pitch circle of the gear wheel.

Particularly useful is an embodiment in which the pivot lever has a slot in which engages an eccentrically mounted on the gear driver. This eliminates the gear otherwise mounted recesses; which can serve as backdrops. These recesses on the gear would also increase the necessary dimensions of the gear, as they must not affect the pitch circle.

It is also advantageous if the Schwenkarmlänge and the slot are dimensioned so that the pivot lever can pass through a pivot angle of 180 °.

As a result, on the one hand, the pivot lever can be accommodated in the usual space of the housing of the espagnolette gear and the usual operation of the espagnolette for a tilt-turn leaves is maintained.

The production of the entire drive rod transmission is facilitated by the fact that the gear and the at least one intermediate gear have a one-sided and over the flat surfaces projecting bearing lug, which is associated with bearing openings in the housing.

If the gear and the at least one intermediate gear on the flat surface of the gear or of an intermediate wheel on which the driver projects, run in alignment, the housing can be simplified.

The bearing of the pivot lever in the housing is realized in that the pivot lever has a coaxial with the pivot axis extending trunnion, in which a polygonal receptacle is mounted for engagement of a polygonal mandrel of the operating lever. As a result, the bearing pin is used at the same time as a thickening for the engagement of the polygonal mandrel.

It can be advantageously provided that the housing is designed as a trough having bearing bores in a side wall for the bearing projections of the gear and the at least one intermediate gear, wherein the distance of the side walls is dimensioned larger than the dimension of the gear or the intermediate gear along the pivot axis and the gear or the at least one intermediate gear is held via a filler in the bearing bores. For mounting or fixing the gear and the at least one intermediate wheel, it is only necessary to insert the filler into the housing.

A particularly simple embodiment also provides that the driver is designed as a cylindrical bolt which is fixed in a bore of the gear.

Further advantageous embodiments will be apparent from the drawings. It shows

Fig. 1

a drive-rod transmission in a three-dimensional representation,

Fig. 2

an espagnolette gear after Fig. 1 in an exploded view,

Fig. 3

an installation example of an espagnolette in a window,

Fig. 4a to c

a schematic representation of the operation of the drive rod transmission in three switching positions in a spatial representation and

Fig. 5a to c

a schematic representation after Fig. 4 in a top view.

In the Fig. 1 the drive rod gear 1 is shown in the assembled state. A housing 2 of the drive rod transmission 1 projects beyond a face-plate 3. From the housing 2 further protrudes a projection 4, which has a polygonal receptacle 5 for coupling with a shaft of an operating lever, which is not shown here. For attachment of the operating lever 2 threaded holes 6 are provided on the housing in which fixing screws of the operating lever find an abutment. The housing 2 is fastened by fastening lugs 7 on the faceplate 3, which protrude from a U-shaped bottom 8 and penetrate the faceplate 3 at openings provided for this purpose.

From the Fig. 2 the exact structure of the drive rod transmission 1 shows. The espagnolette gear 1, in addition to the faceplate 3 on a rail-shaped drive rod 9, which is guided longitudinally displaceably below the faceplate 3. In order to achieve a longitudinal displacement of the drive rod 9, a device is provided which converts the rotational movement of the operating lever into a translational movement of the drive rod. The device consists of a pivot lever 10 and a link-driver connection 11.

In the illustrated embodiment, the slide-driving connection 11 consists of a mounted on the gear 12 driver 13 and a mounted in the pivot lever 10 scenery in the form of a slot 14. The gear 12 is connected to two intermediate wheels 15, 16 in drive connection, as explained in more detail below will be.

The mounting of the pivot lever 10 in the housing 2 is realized in that the pivot lever 10 has a coaxial with its pivot axis 17 extending thickened pivot pin 18, in which the polygonal receptacle 5 is mounted for engagement of a polygonal mandrel of the operating lever. As a result, the bearing pin 18 is simultaneously used as a thickening for the engagement of the polygonal mandrel. For receiving the bearing pin 18 in the housing 2 is an edge-open recess 19th

In the illustration after Fig. 2 is easy to see that the bottom 8 can pass through the faceplate 3 at the openings 20. The drive rod 9 has a downward bend 21 in the direction of the bottom 8. In the region of the bend 21, the drive rod 9 is provided with recesses 22, which cooperate as a drive toothing with the teeth 23 of the intermediate wheels 15,16.

From the Fig. 3 the installation state of the espagnolette gear 1 results in a window 25 with a first wing 26 and a second wing 27, which are formed from hollow chamber profiles 28 and 29. An inner blow bar 30 is attached to the end face 31 of the wing 26 and covers in the closed state, the end face 32 of the wing 27, so that the gap 33 is hidden. On the blow bar 30, a control lever 34 is mounted, which penetrates 35 holes of the blow bar 30 and the wing 26 with a polygonal mandrel. In this case, the operating lever 34 is rotatably supported by a rosette 36 and the polygonal mandrel 35 is rotatably received in a polygonal receptacle 37 of the operating lever 34.

The pivot axis 17 of the polygonal mandrel 35 and the coupled therewith the pivot lever 10 is in the embodiment in front of the folding surface 38, in which the Beschlagaufnahmenut 39 is mounted. It is according to the invention, however, also possible to make a different arrangement in which the pivot axis 17 - in the drawing - below the rebate surface 38. Die Stulpschiene 3 des Treibstangengetriebes 1 ist mit dem Falzfläche 38 verbunden.

In the FIGS. 4a to 4c and 5a to 5c the operation of the drive rod transmission 1 is shown. The FIGS. 4a to 4c show the invention in a view from behind and the FIGS. 4a to 4c show the front view in a two-dimensional representation. In the synopsis of the figures it can be seen that the driver 13 is mounted eccentrically on a gear 12 which - as already described in more detail above - is rotatably mounted on the bearing pin 18 in the housing 2 of the espagnolette gear 1, not shown here. It is here in particular the FIGS. 5a to 5c can be seen that the pivot axis 17 of the pivot lever 10 and the pivot axis 40 of the gear 12 are offset from each other.

From the Fig. 5 It can be seen that in a 180 ° movement of the pivot lever 10, the gear 12 performs an angular range 41 of almost 270 °. The drive rod 9 can be according to a relation to that of the pivot lever 10 and the Control lever 34 enlarged angle range 41 move further. In addition, it is also provided that the gear 12 with at least one intermediate gear - in the exemplary embodiment, two intermediate wheels 15, 16 - is in drive connection, which cooperate with the drive rod 9. As a result, on the one hand, a direction of thrust reversal is achieved, so that the switch positions are retained in a conventional espagnolette gearbox. Due to the displacement of the pivot axis 17 in front of the folding surface 38 and the fact that the drive rod 9 is overlapped by the gear 12 as a result, the switching sequence of the espagnolette gear 2 changes. On the other hand, the achievable stroke is extended, in which the pitch of the intermediate wheels 15, 16 smaller than the pitch circle of the gear 12 is designed. As a result, a further gear ratio is achieved, so that at a necessary total stroke of the drive rod 9, the dimensions of the gear 12 can be reduced.

Evidently the FIGS. 5a to c are the pivot axes 17, 40 on a perpendicular to the folding surface 38 - which is here represented by the faceplate 3 - extending line 42. This allows the dimension of the espagnolette 9 can be further minimized. The approach 4 of the pivot lever 10 is completely in front of the faceplate 3, which requires no bending or the like. In a drive rod transmission 1, which is received in the open Beschlagaufnahmenut 39, this results in the advantage that the approach 4 can be made comparatively solid, since this does not have to be included in the Beschlagaufnahmenut 39.

The faceplate 3 is shown in the Fig. 4a to c provided with a window-like opening 44. The intermediate wheels 15, 16 and the gear 12 are - held by the housing 2, not shown here - in the opening 44, wherein the axes of the intermediate wheels 15, 16 in the region of the opening 44 and the pivot axis 40 of the gear 12 are in front of the faceplate 3 or lies. Since the pivot axis 17 of the pivot lever 10 is in the direction of the folding surface 38 in front of the pivot axis 40 of the gear 12, the pivot arm 45 can dip during pivoting of the pivot lever 10 in the opening 44. This is used in the exemplary embodiment to maximize the usable length of the pivot arm, which can be designed so that this in the position after Fig. 4b and 5b does not abut the drive rod 9. Thereby, and with the measure that the pivot axis 17 of the operating lever 34 and the pivot lever 10 is located in front of the folding surface 38, the maximum stroke of the espagnolette gear 1 is extended.

According to the embodiment, the pivot arm 45 of the pivot lever 10 has a slot 46 into which the eccentrically mounted on the gear 12 driver 13 engages. This eliminates the gear 12 otherwise to be mounted recesses o.ä., Which can serve as scenes. The Schwenkarmlänge and the slot 46 are dimensioned so that the pivot lever 10 can pass through the desired pivot angle of 180 °. For this purpose, the arrangement of the driver 13 on the gear 12, the position of the pivot axes 17, 40 and the length of the slot 46 and connected thereto to tune the Schwenkarmlänge to each other.

The driver 13 is formed in the illustrated embodiment as a cylindrical bolt which is fixed in a bore of the gear 12. It can alternatively be provided, of course, that the driver 13 is formed integrally with the gear 12.

The driver 13 passes through in the Fig. 5a shown position, due to the eccentric position of the pivot lever 10 relative to the gear 12, during pivoting of the pivot arm 10, the slot 46 until it is in the 90 ° position ( Fig. 4b ) has reached the outer end of the slot 46. If the swivel arm 10 is now in the in Fig. 5c shown position further moves, so the driver 13 passes through the slot 46 in the opposite direction and finally approaches the starting position again Fig. 5a , This results in a favorable force distribution for the pivot lever 10. In the position after Fig. 5a the locking elements of the wing 26 are engaged with the locking engagement associated therewith. To move them out of the latch engagements, the frictional forces effective between them must be overcome, resulting in a higher actuation force of the control lever 34. The moment acting on the swivel arm 45, however, is low due to the driver lying closer to the pivot axis 17. In the position after Fig. 5b , the pivot opening position of a tilt-turn wing, no resistance to be overcome by locking elements. The relatively long lever arm on the pivot arm 45, on which the driver 13 acts here, therefore, must transmit only small actuating forces. In the tilted opening position to Fig. 5c Finally, only some of the locking points are engaged, so that the frictional forces to be overcome, although lower than in the position after Fig. 5a but higher than the one after Fig. 5b are. Here, the torque acting on the pivot arm 45 is smaller again due to the smaller distance from the pivot axis 17.

The pivot arm 45 of the pivot lever 10 can therefore be kept relatively narrow, which affects the depth, ie in a direction transverse to the direction of displacement of the drive rod 9 low.

From the Fig. 4 . 5 and 2 is still apparent that the gear 12 has a one-sided cylindrical bearing lug 47 projecting from the flat surface 48, which faces away from the pivot lever 10 and the driver 13. This bearing lug 47 is associated with a bearing opening in the housing 2. The housing 2 of the drive rod transmission 1 is for this purpose designed as a trough, which has bearing bores for engaging the bearing projection 47 on the inside in a side wall. Also, the intermediate wheels 15, 16 have a only on one side on a flat surface 48, 49 projecting bearing lug 50, 51. This can be assigned as well as the bearing lug 47 of a bearing bore in the housing 2.

In order to introduce the bearing lugs 47, 50, 51 in the bearing bores, the distance of the side walls is dimensioned larger than the dimension of the gear 12 and the intermediate wheels along the pivot axes 40, 52, 53. The intermediate wheels 15,16 can characterized in introduced the trough-shaped housing 2 and mounted by lateral displacement in the bearing bores on the housing 2. The intermediate wheels 15,16 and the gear 12 occupy a position in the functional position, in which the flat surfaces 48, 49 and the flat surface 54 (FIG. Fig. 4c ) as well as the opposite plano surfaces are approximately aligned. The pivot lever 10 can thereby engage with the pivot arm 45 and the intermediate wheels 15, 16 (Figures 5a and 5c) and the fixing of the position of the components can via a filler 55 ( Fig. 2 ) respectively. The filler 2 is adapted to the dimensions of the intermediate wheels 15,16 and the gear 12 and the dimensions of the housing 2 so that they can not be removed from the bearing bores with a mounted filler 55. For mounting the drive rod 1, therefore, no additional attachment work is necessary. The intermediate wheels 15,16 and the gear 12 with the pivot lever 10 are inserted into the housing 2. Then, the filler 55 is mounted, which may be fixed, for example, with a locking means on the housing 2. Such mounted drive rod drive modules can be stored in a space-saving preassembled and mounted if necessary by means of the bottom 8 of corresponding length-graded cuff rails 3 and drive rods 9.

It should finally be pointed out that the design of the drive rod 1 can also be done without intermediate wheels 15, 16 and that the invention can also be used in espagnolettes, which have a pivot axis 17 which lies behind the folding surface 38.

LIST OF REFERENCE NUMBERS

1

A drive

2

casing

3

faceplate

4

approach

5

More oriented pictures

6

threaded hole

7

mounting boss

8th

ground

9

driving rod

10

pivoting lever

11

Scenes carrier compound

12

gear

13

takeaway

14

Long hole

15

idler

16

idler

17

swivel axis

18

pivot

19

recess

20

perforation

21

bend

22

recess

25

window

26

wing

27

wing

28

Hollow chamber profile

29

Hollow chamber profile

30

rasp bar

31

face

32

face

33

gap

34

operating lever

35

Polygonal mandrel

36

rosette

37

More oriented pictures

38

rebate surface

39

fitting location

40

Schenk axis

41

angle range

42

line

44

opening

45

swivel arm

46

Long hole

47

bearing projection

48

plane surface

49

plane surface

50

bearing projection

51

bearing projection

52

swivel axis

53

swivel axis

54

plane surface

55

filling

Claims (11)

1. Driving rod gear mechanism (1) for locking a casement (26) of a window (25) or a leaf of a door, consisting of a displaceable driving rod (9) and of a device or means that converts a rotary motion of an operating lever (34) or the like into a translatory motion of the driving rod (9),
   characterised in
   that the device or means consists of a pivoting lever (10) and of a guideway driver connection (11) and one component of the guideway driver connection (11) is attached eccentrically on a gearwheel (12) which is rotatably mounted in a housing (2) of the driving rod gear mechanism (1), while the swivelling axes (17, 40) of the pivoting lever (10) and of the gearwheel (12) lie offset in relation to each other.
2. Driving rod gear mechanism according to claim 1,
   characterised in
   that the driving rod gear mechanism (1) is received in an open groove (39) designed to receive the fitting on the rebate area (38), characterised in that the swivelling axes (17, 40) lie on a line (42) running perpendicular to the rebate area (38).
3. Driving rod gear mechanism according to claim 2,
   characterised in
   that the swivelling axis (17) of the pivoting lever (10) in the direction of the rebate area (38) lies in front of the swivelling axis (40) of the gearwheel (12).
4. Driving rod gear mechanism according to one of claims 1 to 3,
   characterised in
   that the gearwheel (12) is in a driving connection with at least one intermediate wheel (15 or 16) which interacts with the driving rod (9).
5. Driving rod gear mechanism according to one of claims 1 to 4,
   characterised in
   that the pivoting lever (10) has a slot (46) in which a carrier (13) eccentrically attached to the gearwheel (12) engages.
6. Driving rod gear mechanism according to claim 5,
   characterised in
   that the length of the swivel arms and the slot (46) are dimensioned such that the pivoting lever (10) can run through a swivel angle of 180°.
7. Driving rod gear mechanism according to one of claims 1 to 5,
   characterised in
   that the gearwheel (12) and the at least one intermediate wheel (15 or 16) have a bearing projection (50, 51, 47) attached on one side and projecting over the flat surfaces (48, 49, 54) which is assigned to bearing openings in the housing (2).
8. Driving rod gear mechanism according to one of claims 6 or 7,
   characterised in
   that the flat surfaces (48, 49, 54) of the gearwheel (12) and of the at least one intermediate wheel (15 or 16), at least on the flat surface on which the carrier (13) projects, run flush.
9. Driving rod gear mechanism according to one of claims 1 to 8,
   characterised in
   that the pivoting lever (10) has a shoulder or bearing journal (4) running coaxially to the swivelling axis (17), in which a polygonal recess (5) is arranged to receive a polygonal rod (35) of the operating lever (34).
10. Driving rod gear mechanism according to one of claims 8 and 9,
    characterised in
    that the housing (2) is in the form of a trough, which has, in one side wall, bearing bores for the bearing projections (47, 50, 51) of the gearwheel (12) and of the at least one intermediate wheel (15 or 16), while the spacing between the side walls is greater than the size of the gearwheel (12) or of the intermediate wheel (15 or 16) along the swivelling axes (40, 52, 53) and the gearwheel (12) or the at least one intermediate wheel (15 or 16) is held in the bearing bores via a filler piece (55).
11. Driving rod gear mechanism according to claim 5,
    characterised in
    that the carrier (13) is in the form of a cylindrical pin, which is fixed in a bore of the gearwheel (12).

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