EP1764462B1 - Transmission for an anti panic bar - Google Patents

Abstract

The transmission has a base element (10) having a mounting level (12) for a plant at a door such as at the framework of a door. The base element can be rotated around an axis of rotation perpendicularly to the mounting level. A mechanical transmission element (48, 44, 54) converts the movement component into a rotating motion for a square opening (42). The opening has an area with external teeth (54), having a movable tooth element torque proofed connected to a drive component of a rotating motor. The axes of rotation of the tooth element and the opening extend parallel to each other.

Description

The invention relates to a transmission for a panic bar according to the preamble of claim 1. Such a transmission is made EP 0 989 268 A1 known.

Panic bars are known from the prior art in different embodiments and are characterized in that an actuating element extends virtually over the entire width of a door, wherein the movement of the actuating element in the direction of the door leads to an opening of a door lock provided in the door. The actuating element can be designed, for example, as a rod articulated via two end-side levers, which can be moved by means of a pivoting movement in the direction of a door leaf. Alternatively, it is also possible to form the actuating element as a pressure bar, which can be moved over a substantially linear movement in the direction of a door leaf.

In all embodiments known panic bars, it is necessary to implement the explained movement of the actuating element in a rotary motion of a square socket, since this rotational movement about a held in the square socket, coupled with a door lock square ultimately leads to an opening of the lock. In order to realize this movement implementation, a suitable transmission is regularly provided in connection with panic bars, which may have, for example, the components mentioned above.

A disadvantage of these known transmissions is the fact that they are available only in comparatively large-volume embodiments, which in certain installation situations can lead to such a gear or its housing when opening the door to an adjacent door or on one or a door frame or window frame surrounding the door to be opened abuts, which ultimately prevents or even prevents the desired opening. In particular, panic doors such obstruction of the door opening course must be avoided.

In addition, recently doors with very narrow, surrounding the door panel frame elements are increasingly used. Since when mounting a transmission for a panic bar the square mount must always be located in the area of the frame member, since there is also the lock nut, it is inevitable in the use of narrow frame that the transmission for the panic bar including its housing very must be mounted close to the outer periphery of the door, which further increases the risk of obstruction when opening the door. Thus, it is generally desirable to make transmission for panic bars the smaller the closer they are mounted in the area of the outer periphery of a door.

A disadvantage of the transmissions known from the prior art is consequently the fact that their volume and thus also the respectively required housing is dimensioned so large that a disability-free Opening a panic door, especially in panic doors with narrow frame can not be ensured.

An object of the invention is to provide a transmission of the type mentioned above, which allows a problem-free opening a panic door in any installation situation, therefore can be used especially for doors with very narrow frame and at the same time can meet all the usual aesthetic requirements.

This object is achieved by the features of claim 1. In this case, the external toothing can either mesh directly with the rotatable toothed element or be in operative connection therewith via further toothed elements or toothed wheels.

While the components of known from the prior art transmissions are usually arranged around the square socket around so that they extend approximately equidistant on both sides of the square drive with mounted gear in the horizontal direction, it is possible by the provision of the external toothing of the square socket and the toothed element to arrange these components only on one side of the square socket, so that in a mounted gear practically all gear components can be arranged only on one side of a running through the axis of rotation of the square recording limit level. On the other side of this Boundary plane, which extends in mounted gear in the vertical direction, then only one half of the square socket and areas of the square mount storage must be arranged. Thus, only comparatively small components of the transmission are provided on the outside of the square socket, ie on that side of the boundary plane into which the actuating element or the panic bar does not extend, so that the extent of the gearbox, starting from the axis of rotation of the square socket, is minimized to the outside becomes. So it is possible with such a transmission to arrange this at a greater distance to the outer periphery of the door.
It also has an advantageous effect that can be arranged very close to the mounting plane of the base member by the orientation of the axes of rotation of square and tooth element both the square recording with its outer teeth and the tooth element in a flat design, so that the transmission in the area Square and the tooth element can be built very flat. This means that in the said area, the extension of the housing of the transmission element perpendicular to the mounting plane can be very small.

The base member has two spaced apart bearing extensions for a panic bar which extend perpendicular to the mounting plane. The panic bar can then be stored in their transmission-side end only in these two bearing extensions. According to the invention, both bearing extensions are located on the side facing the panic bar of the axis of rotation of the square recess or the boundary plane defined above, so that on the side facing away from the panic bar border level no size of the gear housing magnifying elements must be provided. Thus, in combination with the aforementioned increased distance, it is ensured that a panic door can be opened easily and without obstruction in any installation situation.

It is advantageous if the external toothing of the square socket extends over less than half of its circumferential area, wherein it is arranged substantially on the side of the square socket facing the panic bar. For example, if the external toothing extends only about an angular range of about 60 ° about the axis of rotation of the square socket, it can be ensured that both in the rest position as well as in the actuation position of the transmission according to the invention, at least the larger area of the external toothing always comes to lie on that side of the abovementioned boundary plane which faces the panic bar. The external teeth of the square socket can have, for example, between three and six, in particular four teeth.

The toothed element which is operatively connected or meshed with the external toothing of the square socket is likewise preferably arranged on the side of the square socket facing the panic rod according to the invention. The teeth of the toothed element are advantageously arranged along a circular arc line whose center lies in the axis of rotation of the toothed element. In this case, the toothed element may for example have between two and five, in particular three teeth.

Outside its toothed region, the toothed element preferably has a radial extension extending perpendicularly to its axis of rotation, by means of which it can be caused to rotate by a suitable drive element.

The rotatably coupled to the panic bar or firmly connected drive element can be rotatable together with the panic bar about its axis of rotation. Thus, then the axes of rotation of the panic bar and toothed element are perpendicular to each other, while ensuring that the drive element of the panic bar is suitable for acting on the radial extension of the toothed element. About the drive element and the radial extension, the rotational movement of the panic bar is thus converted into a rotational movement of the toothed element, wherein the axes of rotation of the two rotational movements are perpendicular to each other.

Preferably, the base member forms a housing portion for the square socket and its outer teeth as well as for the active or intermeshing toothed element, wherein the dimensions of this housing portion perpendicular to the mounting plane less than 18 mm and in particular about 12 mm. Such a flat design of said housing portion makes it possible to form the gear on the side facing away from the panic bar of the boundary level defined above so small that no obstructions can occur when opening a panic door.

Between the two bearing extensions, a coil spring may be provided, one end of which is supportable on the base element and the other end on the panic bar. This coil spring can then ensure that the panic bar is moved back to their initial position after their operation, so that subsequently a re-actuation of the panic bar is possible.

The invention extends not only to a transmission for a panic bar, but also to complete panic bars, which are equipped with a transmission according to the invention.

Further preferred embodiments of the invention are described in the subclaims.

Fig. 1a

eine dreidimensionale Ansicht der unteren Hälfte eines erfindungsgemäßen Basiselements,

Fig. 1b

eine Seitenansicht der unteren Hälfte des Basiselements gemäß Fig. 1a,

Fig. 1c

eine Ansicht der Unterseite der unteren Hälfte eines Basiselements gemäß den Fig. 1a und 1b,

Fig. 2a

eine dreidimensionale Ansicht der oberen Hälfte eines erfindungsgemäßen Basiselements,

Fig. 2b

eine Seitenansicht der oberen Hälfte des Basiselements gemäß Fig. 2a,

Fig. 2c

eine Ansicht der Unterseite der oberen Hälfte eines Basiselements gemäß den Fig. 2a und 2b,

Fig. 3a

eine Draufsicht auf eine erfindungsgemäße Panikstange unter Weglassung der oberen Hälfte des Basiselements in unbetätigter Stellung,

Fig. 3b

eine Seitenansicht der Anordnung gemäß Fig. 3a,

Fig. 4a

eine Draufsicht auf eine erfindungsgemäße Panikstange unter Weglassung der oberen Hälfte des Basiselements in Betätigungsstellung,

Fig. 4b

eine Seitenansicht der Anordnung gemäß Fig. 4a,

Fig. 5

eine Draufsicht auf ein in einer Anordnung gemäß den Fig. 3 und 4 eingesetzten Zahnelements,

Fig. 6

eine dreidimensionale Ansicht eines in einer Anordnung gemäß den Fig. 3 und 4 eingesetzten Antriebselements,

Fig. 7a

eine Ansicht gemäß Fig. 3a bei aufgesetzter oberer Hälfte des Basiselements,

Fig. 7b

eine Seitenansicht einer Anordnung gemäß Fig. 7a, und

Fig. 8

eine schematische Ansicht einer mit einer Panikstange versehenen Tür zur Verdeutlichung der der Erfindung zugrundeliegenden Problematik.

The invention will be explained below with reference to an embodiment with reference to the drawings; in these show:

Fig. 1a

a three-dimensional view of the lower half of a base element according to the invention,

Fig. 1b

a side view of the lower half of the base member according to Fig. 1a .

Fig. 1c

a bottom view of the lower half of a base member according to the Fig. 1a and 1b .

Fig. 2a

a three-dimensional view of the upper half of a base element according to the invention,

Fig. 2b

a side view of the upper half of the base member according to Fig. 2a .

Fig. 2c

a bottom view of the upper half of a base member according to the Fig. 2a and 2b .

Fig. 3a

a plan view of a panic bar according to the invention omitting the upper half of the base member in the unactuated position,

Fig. 3b

a side view of the arrangement according to Fig. 3a .

Fig. 4a

a top view of a panic bar according to the invention omitting the upper half of the base member in the operating position,

Fig. 4b

a side view of the arrangement according to Fig. 4a .

Fig. 5

a plan view of a in an arrangement according to the Fig. 3 and 4 inserted tooth element,

Fig. 6

a three-dimensional view of one in an arrangement according to the Fig. 3 and 4 used drive element,

Fig. 7a

a view according to Fig. 3a with the upper half of the base element attached,

Fig. 7b

a side view of an arrangement according to Fig. 7a , and

Fig. 8

a schematic view of a door provided with a panic bar to illustrate the problem underlying the invention.

The lower half 10 of a base member according to the invention has a bottom, which forms the inventively provided fastening plane 12, the surface mounted on a door or a mounted gear Door frame is applied. This lower half 10 of the base member also has a substantially oval shape with a laterally extending projection 14, at its end a bearing extension 16 is formed, which extends perpendicular to the extension 14 and perpendicular to the mounting plane 12. In the bearing extension 16, a circular opening 18 is provided, whose inner wall serves as a bearing surface for the rotary shaft of a panic bar.

The substantially oval base body of the lower half 10 of the base element has a comparatively large, circular opening 20, which ultimately forms a bearing sleeve for a square socket, so that a square recess inserted into the opening 20 can be made rotatable about an axis perpendicular to the fastening plane 12 extending axis ,

Further, the lower half 10 of the base member in the region of the extension 14 has a further circular opening 22, which serves as a bearing for a toothed element.

Finally, further openings are provided in the lower half 10 of the base element, which serve for fastening the transmission according to the invention to a door or a door frame. This purpose is also served by a positioning pin 24 which is integrally formed on the lower half 10 of the base element and extends perpendicularly away from the fastening plane 12.

The upper half 26 of the base member according to the Fig. 2a to 2c also has a substantially oval base body, which can be placed in alignment with the base body of the lower half 10 of the base element is, so that the two halves 10, 26 in composite form ultimately represent a unitary structure or housing.

Like the lower half 20 of the base member also has the upper half 26 of the base member has two circular openings 28, 30, which are aligned with composite base member with the openings 20, 22 of the lower half 10 of the base member and thus also bearing surfaces for a square socket and a toothed element form.

Further openings of the upper half 26 of the base member are aligned with the further openings of the lower half 10 of the base member and also serve to attach the transmission according to the invention to a door or a door frame.

From the oval base body of the upper half 26 of the base member also extends a lateral extension 32, in which the essential portion of the aperture 30 is formed, which serves to support the toothed element. When the lower half 10 and the upper half 26 of the base member are assembled, their extensions 14 and 32 are aligned with each other, wherein the extension 32 of the upper half 26 of the base member is shorter than the extension 14 of the lower half 10 of the base member.

To the oval base body of the upper half 26 of the base member, a further bearing extension 34 is formed, which extends perpendicularly away from said base body. Also in this bearing extension 34, a circular opening 36 is formed, which in turn serves as a bearing surface for a shaft about which a panic bar is rotatably mounted. When the lower half 10 and the upper half 26 of the base member are composed, the two openings 18 and 36 of the mutually parallel bearing extensions 16 and 34 aligned with each other so that a shaft connected to a panic bar shaft can be pushed through both apertures 18, 36, so that ultimately the axis of rotation of said shaft passes through the centers of the apertures 18, 36.

At their in the assembled state facing sides, the lower half 10 and the upper half 26 of the base member each have appropriately shaped recesses 38, 40, which in the assembled state of lower half 10 and upper half 26 of the base member has a housing for external toothing of a Square socket and form a tooth element meshing therewith. The last two components are thus at least substantially encapsulated by the two halves 10, 26 of the base element.

The Fig. 3a and 3b show the lower half 10 of the base member according to Fig. 1 , in which now on the one hand a square receptacle 42 and on the other a toothed element 44 are used.

The square socket 42, which extends through the lower half 10 of the base member and thus protrudes beyond the mounting plane 12, is provided along a portion of approximately 60 ° along its circumference with an outer toothing 54 consisting of a total of four teeth. In a corresponding manner, the toothed element 44 is provided with a total of three teeth 56 which mesh with the teeth of the external toothing 54.

The already defined above boundary plane A, which runs vertically through the axis of rotation of the square socket 42 and in the mounted position of the transmission according to the invention, is in Fig. 3a dashed lines. Out Fig. 3a It can also be seen that the essential area of the external toothing 54 of the square socket 42 and the toothed element 44 are located on the sides of the boundary planes A facing a panic bar 46.

The panic bar 46 is inserted with a frontally provided shaft through the circular opening 18 of the bearing extension 16, said shaft being non-rotatably coupled to a drive element 48 which is located on the side facing away from the panic bar 46 of the bearing extension 16. The said shaft thus extends into the drive element 48 and also beyond, but what Fig. 3a is not apparent, since here the end portion of said shaft was not drawn, so as not to obscure the toothed element 44.

The toothed element 44 has a radial extension 52, which can be acted on by a projection 50 of the drive element 48 in a region which lies substantially opposite the teeth 56. By the cooperating with the radial extension 52 approach 50 of the drive member 48 can therefore be a rotational movement of the panic bar 46 to the shaft held in the bearing extension 16 in a rotational movement of the toothed element 44, wherein the axes of rotation of panic bar 46 and drive element 48 and tooth element 44 senkecht each other run.

A rotational movement of the toothed element 44 in the counterclockwise direction according to Fig. 3a ultimately leads to a position according to the Fig. 4a and 4b. Fig. 4a can be seen that due to the meshing of the external teeth 54 of the square socket 42 with the toothed element 44, a rotation of the square socket about their perpendicular to the plane of the Fig. 4a extending axis of rotation takes place, the direction of rotation of the square recording in the representations according to the Fig. 3a and 4a clockwise. By such a rotation of the square socket 42 can then be done ultimately the desired lock operation.

Fig. 5 shows a plan view of the toothed element 44, which is mounted in the openings 22, 30 of the base member 10, 26. In addition to the three teeth 56 is off Fig. 5 particularly clearly the radial extension 52 can be seen, which is arranged diametrically opposite one of the teeth 56 and extends radially outward.

Fig. 6 shows in three-dimensional view the drive element 48 which is rotatably coupled to the shaft of a panic bar 46. In the Fig. 6 not shown shaft extends through a central slot 58 of the drive member 48, wherein the shaft is received in this slot 58 form fit, so that a relative rotation between the drive member 48 and shaft is not possible. It is particularly clear Fig. 6 the projection 50, which extends radially away from the center of the drive element 48 and which is adapted to act on the radial extension 52 of the toothed element 44.

According to the Fig. 7a and 7b the two halves 10, 26 of the base member are assembled, so that in this case the shaft 60 connected to the panic bar 46 extends through both bearing extensions 16, 34 of the lower half 10 and the upper half 26 of the base member.

Between the two bearing extensions 16, 34 a spiral spring 62 is provided, one end of which is supported on the upper half 26 of the base element and the other end on the shaft 60 of the panic bar 46.

In this way, the coil spring 62, a bias of the panic bar in its unactuated position according to the Fig. 3 and 7 cause.

Fig. 8 1 shows a panic bar 68 attached to a door 64, shown only in sections, with a narrow frame 66, which actuates a transmission concealed by a housing 70. The door 64 adjoins a door frame, a frame, a second door or a wall 72, in which a not shown lock plate for locking the door 64 is located.

When the door 64 is opened by an actuation of the panic bar 68, the door 64 is pivoted in the direction of the arrow, with the result that the area facing away from the frame 66 from the outside of the housing 70 (in FIG Fig. 8 hatched) at a corner of the wall 72 (in Fig. 8 also shown hatched) abuts and thereby a further opening movement of the door 64 or prevents.

This problem is inventively eliminated in that the volume of the housing 70 is reduced due to a reduced and partially laid on the side of the panic bar 68 transmission, in particular, the distance between the outside of the housing 70 and the wall 72 can be increased. At the same time it is ensured that the overall height of the housing 70, so its extension perpendicular to the plane of the door 64 is not larger, but as small as possible.

LIST OF REFERENCE NUMBERS

10

lower half of the base element

12

mounting level

14

extension

16

Bearing extension

18

perforation

20

perforation

22

perforation

24

positioning

26

upper half of the base element

28

perforation

30

perforation

32

extension

34

Bearing extension

36

perforation

38

recess

40

recess

42

Square drive

44

tooth element

46

panic bar

48

driving element

50

approach

52

Radial extension

54

external teeth

56

teeth

58

Long hole

60

wave

62

spiral spring

64

door

66

frame

68

panic bar

70

casing

72

wall

Claims (12)

1. A transmission for a panic bar (46) comprising

   - a base element (10, 26) which has a fastening plane (12) for contact with a door, in particular with a frame of a door;

   - a receiver (42) for a four-cornered bar which is rotatably journalled in the base element (10, 26) and whose axis of rotation extends perpendicular to the fastening plane (12); and

   - transmission elements (48, 44, 54) for the conversion of a component of movement of a panic bar (46) directed toward the fastening plane into a rotational movement of the receiver (42) for a four-cornered bar,

   wherein the receiver (42) for a four-cornered bar is provided at least regionally with an outer toothed arrangement (54) which is in operational connection with a rotatable toothed element (44) which can be acted on to make a rotational movement by a drive element (48) rotationally fixedly couplable with a panic bar (46); and wherein the axes of rotation of the toothed element (44) and of the receiver (42) for a four-cornered bar extend parallel to one another; wherein the base element (10, 26) has two mutually spaced apart bearing lugs (16, 34) for a panic bar (46) which extend perpendicular to the fastening plane (12),
   characterized in that
   both bearing lugs are arranged on the side of the axis of rotation of the receiver (42) for a four-cornered bar adjacent the panic bar (46).
2. A transmission in accordance with claim 1, characterized in that the outer toothed arrangement (54) of the receiver (42) for a four-cornered bar extends over less than half of its peripheral region, with it being arranged at least substantially on the side of the receiver (42) for a four-cornered bar adjacent the panic bar (46).
3. A transmission in accordance with one of the preceding claims, characterized in that the outer toothed arrangement (54) of the receiver (42) for a four-cornered bar has between three and six teeth, in particular four teeth.
4. A transmission in accordance with any one of the preceding claims, characterized in that the toothed element (44) in operational connection with the outer toothed arrangement (54) of the receiver (42) for a four-cornered bar is arranged on the side of the receiver (42) for a four-cornered bar adjacent the panic bar (46).
5. A transmission in accordance with any one of the preceding claims, characterized in that the toothed element (44) has teeth (56) which are arranged along a line of an arc of a circle whose center is in the axis of rotation of the toothed element (44).
6. A transmission in accordance with any one of the preceding claims, characterized in that the toothed element (44) has between two and five teeth (56), in particular three teeth.
7. A transmission in accordance with any one of the preceding claims, characterized in that the toothed element (44) has a radial lug (52) extending perpendicular to its axis of rotation outside its region provided with teeth (56).
8. A transmission in accordance with any one of the preceding claims, characterized in that the drive element (48) rotationally fixedly couplable with or fixedly connected to the panic bar (46) is rotatable together with the panic bar (46) about its axis of rotation.
9. A transmission in accordance with one of the claims 7 or 8, characterized in that the drive element (48) couplable with or fixedly connected to the panic bar (46) is made to act on the radial lug (52).
10. A transmission in accordance with any one of the preceding claims, characterized in that the base element (10, 26) forms a housing section for the receiver (42) for a four-cornered bar with its outer toothed arrangement (54) and for the toothed element (44) in operational connection therewith, with the dimensions of this housing section perpendicular to the fastening plane (12) amounting to less than 18 mm and in particular amounting to approximately 12 mm.
11. A transmission in accordance with any one of the preceding claims, characterized in that a spiral spring (62) is provided between the two bearing lugs (16, 34) and its one end can be supported at the base element (10, 26) and its other end at a panic bar (46).
12. A panic bar (46) having a transmission in accordance with any one of the preceding claims.

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