EP0511357A1

EP0511357A1 - Safety device for a device turning or rotating about an axis.

Info

Publication number: EP0511357A1
Application number: EP91920457A
Authority: EP
Inventors: Fritz Gartner
Original assignee: Josef Gartner and Co
Current assignee: Josef Gartner and Co
Priority date: 1990-11-19
Filing date: 1991-11-19
Publication date: 1992-11-04
Anticipated expiration: 2011-11-19
Also published as: DE4036881A1; DE4036881C2; JP2652815B2; JPH05505434A; EP0511357B1; WO1992008865A1

Abstract

Pour éviter le pivotement ou la rotation intempestives d'un dispositif pivotant ou tournant autour d'un axe (2), en particulier d'un battant de porte ou d'une porte à tambour munie de battants de rotation pivotants, on propose un système de sécurité, où un dispositif de butée (6) tournant autour d'un axe (2) peut s'engager dans un dispositif de retenue pivotant (8) partiellement élastique, empêchant ainsi un pivotement du dispositif (4) jusqu'à ce qu'une force prédéterminée agissant depuis le dispositif de butée (6) sur le dispositif de retenue (8) soit assez grande pour qu'au moins une partie du dispositif de retenue (8) se sépare en pivotant du dispositif de butée (6) afin de permettre un pivotement du dispositif (4).To avoid untimely pivoting or rotation of a device pivoting or rotating around an axis (2), in particular of a door leaf or of a revolving door provided with pivoting rotation leaves, a system is proposed safety device, wherein a stop device (6) rotating around an axis (2) can engage in a partially elastic pivoting retainer (8), thereby preventing pivoting of the device (4) until a predetermined force acting from the abutment device (6) on the retainer (8) is great enough to cause at least a part of the retainer (8) to pivot away from the abutment device (6) so to allow pivoting of the device (4).

Description

Safety device for a device which can be pivoted or rotated about an axis

The present invention relates to a

Safety device for a device pivotable or rotatable about an axis as described in claim 1.

In such devices which can be pivoted or rotated about an axis and are exposed to wind pressure or suction, there is the problem of unwanted pivoting or

Twisting the device. This applies in particular to door leaves and revolving doors with pivoting rotating leaves, in which the proposed securing device can be used as a storm protection device.

From DE-OS 38 15 195 is a motor-operated

Revolving door with deflectable wings known, by means of a deflection lock for each wing and through

at least one anti-rotation sensor on each wing is intended to prevent the wing from opening due to wind loads.

In this known wind pressure protection, it is disadvantageous that a separate one for each wing

Wind pressure control is required. An application of slip clutches for one

Wind pressure protection has the disadvantage that due to the Frictional wear of the slip clutches the setting at which they are supposed to trigger cannot be maintained in the long term and the setting value thus decreases in an uncontrolled manner.

The same applies to toothed clutches, since these are usually pressed against one another by disc springs or similar springs and can only be disengaged if the spring force is overcome. An exact setting of a preselected value is also not possible.

When using index pens, the

Clutch, i.e. it is no longer possible, for example, to turn a revolving door when the safety device is switched on.

It is an object of the present invention to provide a securing device for holding devices which can be swiveled or rotated about an axis, in particular door leaves and revolving doors with swiveling rotating leaves, with which it is prevented that force is applied to the device, in particular in the form of wind pressure or -suck, this opens or moves unintentionally, the securing, if the forces acting on the device exceed a preset value, should no longer prevent it from pivoting. The proposed fuse should in particular damage to the bearing parts and / or the glass parts of the

Prevent device, whereby it should be ensured that the proposed safety device does not prevent actuation of the device in dangerous situations.

This object is solved by the features of claim 1 The stop device, in cooperation with the holding device, prevents the entire device from pivoting until one of the

Stop device on the holding device predetermined force has reached such a size that a pivoting of the device is made possible. The

The device is pivoted by a

Swinging away at least a part of the holding device from the stop device ensured.

Advantageously, the anchor device on the

Device arranged and. especially firmly attached to the device.

Advantageously, the stop device cooperates with the holding device regardless of the direction of rotation of the device, so that the forces acting on the axis of the device from different directions

Safety device is effective. A pivoting of the device is accordingly prevented, regardless of whether, for example, a wind pressure makes a right turn, for example one

Revolving door or a left turn. Because the stop device has at least two stop points, the directional independence of the acting forces can be established in a simple manner.

Since the proposed securing device is designed in such a way that the device can be pivoted at a predeterminable force, the attachment points are advantageously spaced apart from one another in order to allow a limited, free play of the device between the attachment points. Due to this play or the resulting activation angle, the device is not firmly clamped by the securing device, but allows unimpeded pivoting of the device by a limited distance, so that, for example, in

In the event of danger, a kind of outward or start-up movement can take place when operating the device. Through this

Due to the possible acceleration of the device, the holding device can be swung away from the stop device without any special effort, in order to thereby pivot the device

enable. Characterized in that the device is not suddenly in wind pressure, as in the case of pushing open the revolving door by a person, but is slowly pressed against the attachment points, the desired prevention of

Swiveling or twisting the device

ensured. However, if the forces acting on the device exceed a certain level, so that damage to the device is to be feared, the holding device automatically swings away from the stop device, so that damage is prevented by the now possible pivoting of the device.

In terms of manufacturing technology and functionality, the attachment points are as cams of a cam disk

educated.

The fact that the stop surfaces of the anchor points

are preferably curved or rounded, a certain stop point does not have to be suddenly overcome, as would be the case, for example, with an edge-like configuration of the stop surfaces.

For structural reasons and also to introduce larger forces through an extended lever arm into the stop device, this is preferably from the axis of the Device, for example from the axis of one

Revolving door, spaced apart. To engage the holding device with the

The stop device is preferably a stop pin, in particular in the form of a roller, which is arranged on the holding device. The stop pin

prevents the pivoting of the device in cooperation with the holding device, the formation of the stop pin in the form of a roller

represents gentle and low frictional interaction between stop and holding device.

In the engaged position of the holding device with the

It is advantageously provided that the stop pin is arranged between the stop points. The desired activation angle of the holding device turns out to be the distance that the roller between the system on the respective cam

is freely movable.

In order to avoid frictional forces within the limits of the activation angle of the holding device, the stop pin is advantageously arranged at a distance from the stop device.

In an advantageous embodiment of the invention it is provided that the holding device is articulated

stored and connected via joints, preferably connected in series, in particular in the form of rods and / or discs. The usage Such a holding device ensures, for example, that at least part of the

Holding device can pivot away from the stop device, so that in order to pivot the device

enable not the entire holding device must be pivoted.

Preferably, at least four articulation points are provided in the holding device, the start and end articulations of which are arranged so that they cannot move. The holding device thus represents a type of four-bar joint with two movable and two fixed joints. The holding device is preferably over one

Clamping device, in particular in the form of a tension spring, can be brought into contact with a first stop in order to

Bring the holding device into a rest position. The rest position represents the functional position of the holding device, the spring force of the tension spring only having to be so great that the holding device can be fed to the first stop. Once the holding device or part of the

Holding device pivots to pivot the

To enable the device, the spring force of the tension spring should not hinder the pivoting away of the holding device or a part of the holding device.

At least part of the holding device is preferably held immovably in the rest position by an adjustable second stop in connection with the first stop. By fixing an individual part of the holding device designed as a four-bar joint, the holding device becomes Movability prevents that in a

Exercise of forces by the stop device on the holding device does not simply mean that it does not function

can swing away.

The adjustability of the second stop is preferably made possible in that the second stop consists of a movable stop part, in particular a bearing block, which is held pivotably via an immovable joint.

Preferably, the pivoting of the stop part can be controlled automatically via a pivoting device. The automatic pivoting of the stop part ensures that the holding device can be made ineffective if necessary, namely when the stop part is pivoted away from the individual part of the holding device. Such pivoting away of the stop part is particularly important in the event of danger, e.g. in case of fire, possible to

Override the holding device so that

for example a revolving door from the holding device

can be rotated freely. The pivoting device preferably consists of a longitudinally displaceable, articulated to the stop part

connected rod of an electric lifting magnet. With the help of the electric lifting magnet, the pivoting of the stop part can be carried out in a simple manner and with the necessary safety.

It is advantageously provided that the

Swiveling device only in its activated state, the stop part with the holding device in

Intervention. For example, with one Power interruption in the event of danger ensures that the stop part is not in contact with the holding device in order to override the holding device in the event of danger.

To swing the stop part away or the

To bring the stop part into engagement with the holding device when the electric lifting magnet is deactivated, the rod of the electric lifting magnet has a tension spring. The tension spring ensures that the stop part is always pivoted in the desired manner.

A stop element, in particular in the form of a pressure roller, is provided for holding the individual part of the holding device. The pressure roller works silently in interaction with the individual part of the holding device and can be brought into position with the individual part or pivoted away without substantial friction. An additional safeguard with regard to the de-energizing of the holding device is made possible in that the

Stop element in the engaged state of the stop part with the holding device is arranged in the region of the free end of the corresponding individual part of the holding device that even a slight displacement of the stop part due to an inactivity of the pivoting device overrides the holding device by the pivoting which is thus made possible. If, for example, the tension spring of the rod of the electric lifting magnet merely ensures that the stop part moves slightly away, this is sufficient to enable the holding device to pivot away from the stop part. The design of the stop element as a pressure roller also contributes to this. To ensure that the pivoting device is not pivoted towards the holding device when it is not in its rest position, the

The pivoting device can only be activated when the stop pin of the holding device is arranged in the area between the stop points of the stop device. This additional securing can be made possible by means of a corresponding circuit, in which it is determined, for example with the aid of a sensor, that the stop pin is actually located in the area between the stop points of the stop device. In this state, the corresponding individual part of the holding device will rest against the first stop due to the tension spring, so that the movable stop part can hold its position to hold the corresponding individual part

Can take holding device. This advantageous embodiment of the invention damages the

Swiveling device and the holding device avoided, which can occur when the swiveling device or the movable stop part is pivoted in contact with parts of the holding device and causes damage by the resulting contact.

At least one further individual part of the holding device is preferably elastically deformable in its rest position by the predetermined force of the stop device,

especially compressible, so that part of the

Holding device is pivotable away from the stop device, which prevents pivoting of the device. As soon as a part of the holding device, which is designed as a four-bar joint with a non-displaceable starting and end joint, is fixed, the four-bar joint or a part of the same only move in that another or further individual part of the holding device is deformable. Only through this configuration it is possible that the part of the

Holding device can be pivoted away from the stop device, which prevents the pivoting of the device itself.

The further individual part is preferably an elastically deformable rod, in particular a compression spring rod. The compression spring rod remains stable against lateral buckling and can only reliably in

Deform the direction of the bar. The spring force of the compression spring rod is advantageously adjustable, in particular automatically adjustable. This allows the force at which the holding device in

Interaction with the anchor device should no longer hold the device. The

The proposed securing device can thus be used in a wide variety of rotatable or pivotable devices. In particular, the predetermined force can also be changed after assembly. The spring force of the compression spring rod can be adjusted in a simple manner by means of a clamping bolt, which can be adjusted in particular by means of an Allen screw or a linear motor. The holding device is an advantageous one

Configuration of a single part fastened with the non-displaceable end joint in the form of a lever and a plate fastened with the starting joint with the stop pin and the one articulated between them Compression spring rod. A four-bar linkage designed in this way as a holding device is simple to manufacture and meets the high requirements in terms of functionality and

Safety.

The tension spring which is the

Brings holding device in its rest position, arranged in the region of the connection point between the plate and the compression spring. The area of the connection point is the most favorable area for a force application to guide the holding device into its rest position.

A special embodiment of the invention

explained in more detail below using a figure in an exemplary manner.

The figure shows a top view of the structure of the

safety device according to the invention. 2 with an axis of a rotatable device 4, for example a revolving door, not shown. Arranged at a distance from the axis 2 is a stop device 6 in the form of a cam disk 14. The stop device 6 has two stop points spaced apart from one another in the form of cams 10 and 12, the stop surfaces 16, 18 of the cams 10, 12 being of rounded design. A roller 20 of a holding device 8 is arranged in the area between the cams 10 and 12. The stop device 6 is firmly attached to the device 4.

The holding device 8 is constructed in the manner of a four-bar linkage and consists of a plate 60 which has the roller 20 and is movably held via a fixed starting link 22. A joint 24 is attached to the plate 60 Compression spring rod 52 articulated. The other end of the compression spring rod 52 opposite the joint 24 is also articulated to a lever 58 via a further joint 26. The lever 58 in turn is attached via a fixed end joint 28.

The holding device 8 thus represents a four-bar joint, each consisting of a fixed start or end joint 22, 28 and two movable joints 24, 26 arranged in between. If the holding device 8 is not prevented from moving by any stop, the

Swing the holding device 8 unhindered in the event of a force, in which the lever 58 and the plate 60 pivot and thereby take the compression spring rod 52 with them.

But since it is the task of the holding device 8, a

To prevent the device 4 from pivoting about the axis 2, the holding device 8 must take certain measures

to the extent that the above

Swinging out of the holding device 8 is prevented. Swinging out without a disability is considered as

Powerless position of the holding device 8 designated. The holding device 8 is fixed via a first stop 32 and a second stop 34

Holding device 8 is guided to the first stop 32 via a tension spring 30, which is arranged at the connection point between the plate 60 and the compression spring 52, the other end of the tension spring 30 being fixedly arranged on a pin 62, for example. The spring force of the tension spring 30 only has to be designed so that the tension spring 30 leads the holding device 8 securely up to a contact with the first stop 32. The anchor device 8 lies on a cantilever finger 64 on the first stop 32, which is designed, for example, as a bolt. Accordingly, there is a kind of pretensioning of the holding device 8 on the first stop 32 due to the tension spring 30. As can be seen from the figure, the first prevents

Stop 32 a powerless pivoting away of the holding device 8 when the device 4 moves in the direction of arrow A. In this case, the roller 20 abuts the cam 12, the holding device 8 by the first

Stop 32 initially prevents further rotation of the device 4 in the direction of arrow A. In order to prevent rotation of the device 4 in the direction of arrow B, a second stop 34 is provided, which rests on the lever 58 in the region of the free end 50 of the lever 58 via a pressure roller 48 as a stop element.

According to the invention, the holding device 8 is a

Rotation of the device 4, however, only up to one

Prevent predetermined force acting on the holding device 8 via the roller 20. If the force exceeds the predetermined force, at least part of the

Dodge holding device 8 so that the roller 20 can slide over one of the two cams 10, 12, thereby

To avoid damage to the bearing parts and the material of the device 4. The desired swiveling away

Holding device 8 or a part of the holding device 8 is made possible by the compression spring rod 52 which, depending on the direction of rotation of the device 4, either compresses or pulls apart. For a certain amount of shortening or lengthening of the pressure rod 52, the roller 20 can one of the two cams 10, 12th exceed and thus allow the pivoting movement of the device 4. The setting of the spring force of the compression spring 52 takes place via a clamping bolt 54, which by means of a

Allen screw 56 can be adjusted. However, it is also possible to operate the clamping bolt 54 via a linear motor, so that the adjustment of the spring force of the

Compression spring 52 can be done automatically instead of manually.

However, the holding device 8 must not hinder or complicate the pivoting of the device 4 in the event that a person is not recognized by the person, for example

Revolving door shown device 4

want to step through to get in or out of a building. step out. Even in a possible danger, e.g. in the event of fire, it must be ensured that people can get out of the building freely through the device 4. This is achieved in that at least one of the two stops 32, 34 can be brought out of engagement with the holding device 8. By doing

In the example shown, the second stop 34 is designed as a movable stop in order to allow the device 4 to pivot freely in the direction of the arrow B.

For this purpose, the second stop 34 consists of a displaceable bearing block 36, at the end of which, facing the lever 58, a pressure roller 48 is fastened. The

Swinging away of the bearing block 36 is made possible by a rod 42 which is connected to it in an articulated manner. The rod 42 is part of a pivoting device 40, which from the aforementioned rod 42 and an electric solenoid 44. The electric lifting magnet only moves the rod 42 in the direction of the lever 58 in the activated state, so as to bring the bearing block 36 or the pressure roller 48 into engagement with the lever 58. An extension of the rod 42 only in the activated state of the electric solenoid 54 is therefore provided that in the event of a power failure

Bearing block 36 or the pressure roller 48 automatically except

Engagement with the lever 58 is brought. This

Swinging back the bearing block 36 in the direction of the

Electric solenoid 44 is by a tension spring 46

supports that in the activated state of the

Electric solenoid 44 is biased. As soon as the

Power supply to the electric solenoid 44 is interrupted, the compression spring 46 pulls the rod 42 back towards the electric solenoid 44 and thus pivots

Bearing block 36 and thereby also the pressure roller 48 away from the area of the lever 58. The pressure roller 48 is like this

arranged that even a slight movement of the rod 42 in the direction of the electric lifting magnet 44 enables a forceless pivoting away of the holding device 8. For this purpose, the center of the pressure roller 48 is only a short distance from the free end 50 of the lever 58. As soon as pressure is exerted on the free end 50 of the lever 58 on the pressure roller 48 and the latter moves only a little in the direction of the electric lifting magnet 44, the holding device 8 can be pivoted without force by being at the

Pivotal movement pivoted the bearing block 36 with the help of the pressure roller 48.

To ensure that the bearing block 36 is not pivoted into the position shown in the figure, as long as not the finger 64 abuts the first stop 32, the electric lifting magnet 44 can only be activated when the roller 20 is located between the cams 10 and 12. This can be ensured by a simple circuit with, for example, a sensor.

In order to avoid friction of the roller 20 on the cam disk 14, the roller 20 is arranged at a distance from the stop device 6 or the cam disk 14. The activation angle resulting from the spacing of the cams 10 and 12 ensures that the

Device 4 is not held completely immobile by the holding device 8. In an emergency, for example, if the device is rotated in the direction of arrow A in a panic, the device 4 can start moving a certain amount before the bearing pin 20 hits the cam 12. As a result, the device 4 can be accelerated and a greater force can be exerted on the holding device 8 and thus the device 4 can also be pivoted in an emergency in spite of the activated holding device 8. This applies equally to the case that the second stop 34 cannot be pivoted out of the stop position with the lever 58 due to certain circumstances.

In the safety device according to the invention, it is particularly advantageous that the holding device 8 can be activated automatically via the electric lifting magnet 44. When there is no wind, for example, it is not necessary for the second stop 34 to be brought into engagement with the lever 58. But as soon as a certain one

If the wind speed is exceeded, the safety device can be activated via an electrical circuit by pivoting the bearing block 36 into its position shown in the figure.

A detected wind speed can be used, for example, as a function of the distance or force, to adjust the linear motor for adjusting the spring force of the compression spring 52 via a wind meter

Control wind strength and thus automatically pre-tension to a certain value.

Reference list

2 axis

4 device

6 anchor device

8 holding device

10, 12 cams

14 cam disk

16, 18 stop surface

20 roller

22 (initial) joint

24 joint

26 joint

28 (final) joint

30 tension spring

32 first stop

34 second stop

36 bearing block

38 joint

40 pivoting device

42 staff

44 electric solenoid

46 tension spring

48 pressure roller

50 free end

52 compression spring rod

54 clamping bolts

56 Allen screw

58 levers

60 plate

62 cones

64 fingers

Claims

Securing device for a device pivotable or rotatable about an axis

1. Safety device for a device (4) which can be pivoted or rotated about an axis (2), in particular as a storm protection device for a door leaf or a revolving door with pivotable rotation leaves, in which a stop device (6) rotatable about the axis (2) with a partially elastic , pivotable holding device (8) can be brought into engagement and prevents pivoting of the device (4) until a predetermined force acting on the holding device (8) from the stop device (6) has reached such a magnitude that at least part of the Holding device (8) pivots away from the stop device (6) in order to enable the device (4) to be pivoted.

2. Safety device according to claim 1, wherein the

Stop device (6) arranged on the device (4), in particular is fixedly attached.

3. Safety device according to claim 1 or 2, in which the stop device (6) interacts independently of the direction of rotation of the device (4) with the holding device (8).

4. Safety device according to claim 1 or 2, wherein the stop device (6) has at least two anchor points.

5. The safety device according to claim 4, wherein the Anchor points are spaced from each other in order to allow a limited, free play of the device (4) between the anchor points.

6. Safety device according to claim 4 or 5, at

which are designed as cams (10, 12) of a cam (14).

7. Safety device according to claim 4 or 5, at

which the stop surfaces (16, 18) of the stop points are curved or rounded.

8. Safety device according to claim 1 or 2, at

which the stop device (6) is arranged at a distance from the axis (2) of the device (4).

9. Safety device according to claim 1, in which for engagement of the holding device (8) with the stop device (6), a stop pin, in particular in the form of a roller (20), is arranged on the holding device (8).

10. Safety device according to claim 9, wherein the stop pin is arranged in the engagement position of the holding device (8) with the stop device (6) between the stop points.

11. Safety device according to claim 9 or 10, at

which the stop pin is spaced from the stop device (6).

12. Safety device according to claim 1, wherein the holding device (8) consists of articulated and connected via joints (22, 24, 26, 28), preferably connected in series, preferably in the form of rods and / or discs.

13. Safety device according to claim 12, in which the holding device (8) has at least four hinge points or joints (22, 24, 26, 28), the start (22) and end joints (28) of which are arranged immovably.

14. Safety device according to claim 1, in which the holding device (8) can be brought into contact with a first stop (32) via a tensioning device, in particular in the form of a tension spring (30), in order to bring the holding device (8) into a rest position .

15. The safety device according to claim 1, wherein

at least one individual part of the holding device (8) is held immovably in the rest position by an adjustable, second stop (34) in connection with the first stop (32).

16. Safety device according to claim 15, wherein the second stop (34) consists of a movable stop part, in particular a bearing block (36), which is held pivotably via an immovable joint (38).

17. Safety device according to claim 16, in which the pivoting of the stop part can be controlled automatically via a pivoting device (40).

18. Safety device according to claim 17, in which the pivoting device (40) consists of a longitudinally displaceable rod (42) of an electric lifting magnet (44) which is articulated to the stop part.

19. Safety device according to claim 17, in which the pivoting device (40) brings the stop part into engagement with the holding device (8) only in its activated state.

20. Safety device according to claim 18, wherein the rod (42) of the electric lifting magnet (44) has a tension spring (46) which, when the electric lifting magnet (44) is deactivated, disengages the stop part from the holding device (8).

21. Safety device according to claim 15, in which for holding the individual part of the holding device (8)

Stop element, in particular in the form of a pressure roller (48), is arranged on the stop part l.

22. Safety device according to claim 21, in which the stop element in the engaged state of the stop part with the holding device (8) is arranged in the region of the free end (50) of the corresponding individual part of the holding device (8) that even a slight displacement of the stop part due to Inactivity of the swiveling device (40) overrides the holding device (8) by the swiveling away that is made possible.

23. Safety device according to claim 9, wherein the pivoting device (40) can only be activated when the stop pin of the holding device (8) in the area between the attachment points of the

Stop device (6) is located.

24. Safety device according to claim 1, in which at least one further individual part of the holding device (8) in its rest position is elastically deformable, in particular compressible, by the predetermined force of the stop device (6), so that the part of the holding device (8) can be separated from the stop device ( 6) can be pivoted away, which prevents the device (4) from pivoting

25. Safety device according to claim 24, in which the further individual part is an elastically deformable rod, in particular a compression spring rod (52).

26. Safety device according to claim 25, in which the spring force of the compression spring rod (52) is adjustable, in particular automatically adjustable.

27. Safety device according to claim 26, in which the spring force of the compression spring rod (52) is adjustable via a clamping bolt (54), which is adjustable in particular via an Allen screw (56) or a linear motor.

28. Safety device according to claim 1, in which the holding device (8) consists of an individual part fastened to the immovable end joint (28) in the form of a lever (58) and a plate (58) fastened to the starting joint (22) with the stop pin and the there is an articulated compression spring rod (52).

29. Safety device according to claim 14, in which the tension spring (30) is arranged in the region of the connection point between the plate (60) and the compression spring (52).