DE102006026698A1 - Sectional gate with driving motor, upwards and outwards opening gate leaf and strip at bottom of leaf with an optical data capture device to detect objects underneath said strip, linked by signal to the motor - Google Patents

Abstract

The gate has a leaf (1) driven open or upwards by a motor and a cover strip (2) on the bottom of the leaf. An optical device detects objects underneath the strip, which is linked by electronic signal to the motor. In the region of the strip is a device (3,6,8) to embed the optical detection device such that it can pivot between its resting or storage postion and its operational position. In its resting position it is flush with the cover strip. The optical device is embodied as a light barrier device made up of a pivotable part (15) to transmit light and a second pivotable part opposite the first to receive light.

Description

The The present invention relates to a gate, in particular a sectional door.

Even though Applicable to any up and down gates, the present invention and the problems underlying it closer to a sectional door explained.

such Sectional doors consist of several transverse sectional elements, which together form a flexible or roll-up door leaf. The door leaf is rotatably mounted on a above the door opening and Winding shaft provided with a drive motor can be wound up. Further points the door leaf generally at the bottom of a finishing bar on which serves a stiffening of the lower end of the door leaf. When opening and Shut down of the gate drives the door leaf with a relatively high speed upwards and down, while the while of closing down moving door leaf or at the bottom of the door leaf attached end bar with great force on for example People or objects underneath meet and corresponding Injury or damage can cause.

Around this risk of injury or damage ruled out For example, the trailing bars are near the bottom edges provided with safety strips which have switching devices, which in their operation the engine brake, usually by switching off the motor current. Because of the weight and in particular the kinetic energy of the door leaf results - apart from the switching delay - an unavoidable Braking distance, which represents a special danger area.

It End strips are known which from profiles, preferably Hollow profiles made of an elastomeric material, the lower Edge regions are provided with the switching devices, for example consist of contact strands or pressure wave switches.

In the EP 0 143 712 A is described an existing of a hollow profile of an elastomeric material safety strip whose transverse channels are connected by hoses to a pressure-sensitive switch which actuates the engine brake, when the pressure in the tubes increases by squeezing the safety bar.

From the DE 86 15 041 U For example, there is known a safety strip made of a tube of an elastomeric material provided with a lamp on one side and a photosensitive resistor on the other side so that a switching pulse actuating the motor brake can be generated when the tube is hit by an obstruction is compressed in such a way that the photosensitive resistor is darkened.

At the above approaches according to the state of However, technology has proved to be disadvantageous that in such systems due to elastic deformation the elastomeric material of the lower end strip to egg ner switching delay or even a switch failure can occur.

Further There is a disadvantage in that a door in the door leaf is not without Further integratable, since the door to avoid an adverse, obstructive step in one piece with a section of the bottom end strip must be trained and also must be integrated so that it does not affect of the security system comes. Besides, even with minor deviations the lock positions of the door Deviations of the beam path of the triggering optics take place, which too false alarms or switching failures being able to lead.

Of the present invention is based on the object, the above Disadvantages to eliminate and in particular to create a gate, which with equipped with a security system is, even with an integrated door in the door under the lower end bar located objects or persons detected reliably and injury to persons and / or damage to objects.

These The object is achieved by a Gate with the features according to claim 1 solved.

The The underlying solution of the present invention is that at a gate with a by a drive motor up and down Door leaf and one attached to the lower end of the door leaf lower end bar coupled to the drive motor signal optical detection device for a collection of any objects below the bottom end bar and a device for the pivotable mounting of the optical detection device are provided in the area of the end strip.

Thus, the present invention Compared with the prior art has the advantage that the optical detection device can be positioned by pivoting from the storage position to the operating position such that the optical axis of the optical detection device is slightly below the lower end strip. As a result, an interruption of the beam path or the optical axis not only indirectly by a deformation of the elastic end strip, but directly by an interruption due to an object located below the door, that is, a person or an object. Furthermore, the optical detection device receives a signal already before an impact of the terminal strip on the object, so that an advantageous moment of time created, ie the movement of the gate is prematurely interrupted.

One Another advantage is that the optical path of the optical Detection device is not located within the lower cover strip, so that even in the case of integration of a door in the gate of the beam path the detection device even with different closure conditions of Door unaffected or consistently is and continually a reliable one Collection guaranteed.

In the dependent claims find advantageous embodiments of the in claim 1 specified gates.

According to one preferred development is the optical detection device at a complete pivoted down gate in a storage position, that due to a flush Complete the goal with the bottom end bar the lower assigned floor area and a flush degree with the bottom surface guaranteed is.

According to one Another preferred development is the optical detection device designed as a light barrier device. The light barrier device preferably consists of two respective pivotable components, one of which preferably at the outermost region at the bottom End of the door leaf at the side of the lower end strip and the other component on the opposite, outermost Area at the lower end of the door leaf laterally of the lower End bar is arranged. Thus, the entire advantageous Cross-section monitored below the door leaf.

To a further preferred embodiment is the first of the two pivotable components of the light barrier device as a light emitting device and the second of the two pivotable Components of the light barrier device as a light receiving device educated. Alternatively, the first pivotable component of the light barrier device also as a combined light-emitting / light-receiving device and the second component may be formed as a light reflector. Thus, on simple and inexpensive Way a safe and reliable created optical detection device.

Advantageous is on each side of the lower end bar respectively a carrier part provided, on which the two components are each pivotable are attached. For example, the first and the second component the light barrier device each in an associated holder element stored, wherein the holder elements in each case via suitable pivot arms the associated carrier parts are hinged pivotally. Thus, a simple way Pivoting of the holder or bearing elements and thus the therein ensured recorded components of the light barrier device.

According to one Another preferred embodiment, each holder element at least a supporting role, preferably four support rollers, to support the pivoting movement from the operating position to the storage position on.

According to one another preferred embodiment is on each carrier part in each case at least one stop element, for example a stop screw, for one suitable positioning of the respective associated holder elements provided in the operating position. This will be easy guaranteed that the two opposite each other arranged components of the light barrier device so suitable aligned with each other, that of serving as a transmitter Component emitted light safely and reliably from the receiver or received as a reflector component is received or reflected.

To In another preferred embodiment, the pivoting movement takes place the optical detection device from the storage position into the operating position due to gravity, that is only due to the weight of the components of the optical detection device, and from the operating position to the storage position by attachment the corresponding components on the floor surface with the aid of Supporting roles. Thus, a pivoting of the optical detection device takes place in the operating position fully automatically in a simple and cost-effective manner only due to the weight of the components used. It is for a person skilled in the art, that the pivoting movement also otherwise, For example, by means of an electrical control, performed can.

Advantageous is the optical axis of the optical detection device in the Operating position for detecting any objects slightly below the bottom Closing bar angeord net and aligned parallel to this. Thus, you can these objects are detected in time before the shutdown Gate on this hits and injuries or damage this can cause.

Preferably have the carrier parts each a recording area for a recording of the respectively associated components of the optical detection device in the storage position, that is, when completely shut down Door open. This recording is advantageously such that in the storage position a flush Completed with the bottom end bar. Thus, the completely shut down closes Gate completely with the bottom surface off, so that moisture, dirt or the like shielded and any burglary attempts are made difficult.

According to one another preferred embodiment is the optical detection device by lines with a Control device connected, which in dependence of the detected data the drive motor drives suitable. Thus, for example when capturing objects below the bottom end bar shut down the gate of the engine stopped or so controlled be that the gate is raised again.

A Cover, preferably made of rubber or the like, is advantageous for covering the optical detection device in the storage position provided, wherein the cover is preferably mounted on each support part is and flush concludes with the bottom end bar. This results in the previously mentioned advantages of safe and reliable sealing to moisture and dirt and an additional burglar alarm.

Preferably is the bottom end bar as well as the above cover made of rubber or the like, so at a complete shutdown the door due to the elastic properties of a complete conclusion with the bottom surface he follows.

According to a further preferred embodiment, the carrier part by means of a gimbal for a pivotal mounting about an axis parallel to the lower edge of the door leaf axis at the bottom of the door leaf 1 stored. The gate leaf 1 has in a predetermined area on a screw-on, which is fixedly connected to the underside of the door leaf, and gimbals or support plates comprises, on which pivot pins are provided. The pivot pins preferably engage in associated receiving bores in the carrier part 3 for a pivotal mounting thereof about the axis of rotation parallel to the bottom of the door. As a result, canting or pinching of the detection device in the rolling process in the area of the take-up roll can be avoided in the case of a fully raised door, since the optical detection device assumes a constant orientation with respect to the floor surface, even when the door is fully raised, due to the cardan suspension.

Preferably the door is designed as a sectional door, which has an integrated Door has. It is for a person skilled in the art, that the present inventive concept but on all Goals is applicable.

The Invention will be described below with reference to exemplary embodiments with reference explained in more detail on the accompanying figures of the drawing. From the figures show:

1 a perspective view of a partial section of a gate according to the invention according to a Favor th embodiment of the present invention without cover;

2 a perspective view of a partial section of a gate according to the invention according to a preferred embodiment of the present invention with cover;

3 a front view of a partial section of a gate according to the invention according to a preferred embodiment of the present invention with cover;

4 a right-side view of the partial section of the gate 3 ;

5 a left-side view of the partial section of the gate 3 ;

6 a cross-sectional view along the section line AA 5 .

7 a perspective view of a partial section of a gate according to the invention according to a further preferred embodiment of the present invention in a first position;

8th a perspective view of a partial section of a gate according to the invention according to a further preferred embodiment of the present invention in a second Position;

9 a right-side view of the partial section of the gate 8th ;

10 a left-side view of the partial section of the gate 8th ; and

11 a cross-sectional view along the section line AA 10 ,

In In the figures of the drawing, the same reference numerals designate the same or functionally identical components, unless stated otherwise is.

As in the 1 to 3 it can be seen, the gate has a lower Torblattabschnitt 1 which represents, for example, a sectional section of a sectional door. In the

1 to 3 only the right, lower area of the door is shown in the partial section for the sake of clarity. According to the present exemplary embodiment, the door advantageously has a mirror-symmetrical analog structure on the opposite left, lower side.

As in particular in the 1 to 3 is apparent, is at the bottom of the door leaf 1 a bottom end bar 2 , preferably made of rubber, attached. For example, there is the bottom end bar 2 of two interconnected hollow profile parts, as in 2 is seen. The bottom end bar 2 preferably extends over the entire transverse extent of the door leaf 1 , with the exception of the two lateral end regions. In each of these end regions is a carrier part 3 provided, which also by means of, for example, screw or the like on the underside of the door leaf 1 is preferably attached to the two lower outer areas. The carrier part 3 according to the present embodiment comprises a horizontal section 4 and a thereto, for example, rectangular molded vertical section 5 ,

At the horizontal section 4 the carrier part 3 For example, four swivel arms 6 around assigned swivel axes 7 pivoted pivoted. The swivel arms 6 in turn are on an associated holder element 8th fastened by means of suitable connecting means so pivotally that the holder element 8th without changing its horizontal alignment about the pivot axes 7 can be pivoted or folded between a storage position and an operating position shown in the figures. For example, the pivot arms 6 holder element side together with to be described associated support rollers via a common connecting means, such as suitable axle bolts on the holder element 8th attached pivotally.

In the holder element 8th is now, for example, a sender or a receiver 15 a photocell 16 stored, wherein on the opposite holder element (not shown) correspondingly complementary to the receiver or the transmitter of the light barrier 16 is recorded. It will be apparent to one of ordinary skill in the art that alternatively on one side in the associated holder member 8th Also, a combined transmitting / receiving device can be stored, in which case a reflector for generating a suitable optical beam path is provided in the opposite holder element.

Preferably, the optical axis or the beam path of the light barrier 16 in the operating position slightly below and parallel to the bottom end bar 2 so provided that objects immediately below the end bar 2 be reliably detected.

In all figures, the operating position of the holder element 8th shown schematically, this position is always taken when no contact of the holder element 8th takes place with the associated floor area. In this case, the holder element becomes 8th due to the masses of the components involved, that is the holder element 8th with assigned component 15 the photocell 16 , the swivel arms 6 and the later described supporting rollers, acting weight force about the pivot axes 7 pivoted or folded in the operating position shown in the figures.

Instead of the gravity-induced pivoting of the components described above 15 or the holder elements 8th Such pivotal movement can also be accomplished electrically or otherwise.

In order to ensure a defined and on both sides suitably aligned to each other operating position, has the vertical section 5 each carrier part 3 for example, two stop elements 9 on, in the defined operating position in contact with correspondingly associated side surfaces of the two pivot arms 6 located facing the outside of the door, in particular in 1 is illustrated. By thus defined positioning of the holder element 8th in the operating position on both sides of the door by means of the stop elements 9 becomes a vertical coincidence of the orientation of the holder elements 8th and thus the components of the light barrier 16 guaranteed.

Furthermore, the holder element 8th preferably support rollers 10 , For example, four symmetrically arranged support rollers 10 , which, when the door is lowered, come into contact with the associated floor surface and the folding movement of the detection device 16 support such that the holder element 8th and thus the associated component of the light barrier 16 is pivoted or folded from the operating position to the storage position. This can Ver wear phenomena on the holder element 8th prevented and the life of the same be extended.

As in particular in the 2 and 3 is apparent, is a cover made for example made of rubber 11 to cover a receiving area 12 the carrier part 3 attached to this. When the door shuts down, the holder elements become 8th from the operating position shown in the figures from the time of contacting the support rollers 10 pivoted with the associated bottom surface in the direction of a storage position. For a completely shut down door leaf 1 there is every holder element 8th with associated swivel arms 6 , Support rollers 10 and recorded component of the light barrier 16 in the respectively assigned receiving area 12 the carrier part 3 such that the bottom end bar 2 and the preferably then flush subsequent cover 11 Completely touch the assigned floor surface and thus complete. In this case, over the entire transverse extent of the door leaf 1 ensuring a conclusion with the associated floor surface so that dirt and moisture prevented from entering the room to be closed and burglary attempts are difficult.

4 Illustrates a right-sided and 5 a left-side view of the partial section 3 , An electrical connection line 13 is therefore preferably with the associated component of the light barrier 16 connected and transmits the detected data, for example, to a control device which, depending on the data collected, the drive motor for raising and lowering the door leaf 1 controls accordingly. For example, the controller activates the engine brake when the light barrier 16 A signal provides that an object, that is a person or an object, in the beam path of the light barrier and thus directly below the bottom end bar 2 located. Thus, the gate comes to a stop before the person or object is hit and may be injured or damaged. The electrical connection cable 13 is preferably formed so flexible and by an associated opening 14 in the vertical section 5 the carrier part 3 led out in the direction of the control device that the electrical connection cable 13 the folding and unfolding of the holder element 8th supported.

The carrier parts 3 and the holder elements attached thereto 8th for receiving the components 15 the photocell 16 are preferably at the outermost lower corner regions of the door leaf 1 positioned, so preferably the entire area below the door leaf 1 can be detected by the light barrier.

6 illustrates a cross-sectional view along the section line AA 5 , As in 6 is apparent, is the component 15 , For example, a light emitter or light receiver, in the holder element 8th stable and stored between the operating position and a storage position and folded out.

The following is with reference to the 7 to 11 a gate according to a further preferred embodiment of the present invention explained in more detail.

In contrast to the embodiment according to the 1 to 6 is the carrier part according to the present embodiment 3 complete with cover 11 and the optical detection device 16 by means of a gimbal at the bottom of the door leaf 1 swiveling stored. This is at the bottom of the door leaf 1 in the two side areas in each case preferably a screw-on 17 mounted, which on both sides thereof preferably vertical support plates 18 or gimbal plates 18 having. The carrier plates 18 each preferably have a pivot pin 19 on, with the two pivot pins 19 assign each other and in associated receiving holes in the carrier part 3 for a pivotal mounting of the support part 3 intervention. In the in 7 shown first door position, for example when lowering or raising the door leaf, corresponds to the position of the support member 3 Due to gravity essentially the position of the embodiment according to the 1 to 6 ,

In the in 8th shown second position of the door leaf, for example, in the achievement of a state in which the door leaf is fully or almost completely open, the support member follows 3 due to the cardan suspension not the tilting movement of the door leaf 1 , By means of the gimbal suspension remains the carrier part 3 due to gravity in its relative position with respect to the bottom surface, relative to the door leaf 1 a turn around the through the two pivot pins 19 defined axis 20 which runs parallel to the bottom of the gate.

9 Illustrates a right-sided and 10 a left-side view of the partial section 8th , wherein the relative pivotal movement of the support part 3 with respect to the door leaf 1 is shown. In 10 In addition, one of the two pivot pins is shown and with the reference numeral 19 characterized.

11 illustrates a cross-sectional view along the section line AA 10 , As in 11 it can be seen, grab the pintle 19 in the assigned mounting holes 21 in the carrier part 3 and define the axis of rotation 20 such that the carrier part 3 Due to gravity relative to the door leaf 1 can pivot. With regard to the other components and functions of these components is based on the embodiment according to the 1 to 6 directed.

Even though the present invention with reference to preferred embodiments As described above, it is not limited thereto on diverse Modifiable way.

In the above embodiment, for example, it is not only an interruption of the beam path of the light barrier 16 If an object crosses the beam path, but also when shut down the door leaf 1 a contact of the support rollers 10 takes place with the associated bottom surface and then the holder element 8th is rolled or pivoted from the operating position to the storage position. Thus, the drive motor is automatically deactivated even if a complete shutdown of the gate has been accomplished. This can be ensured by a simple control.

Furthermore, the present inventive idea, for example, on gates, in particular sectional doors, with at least one integrated door applicable. Here is the bottom end bar 2 divided in sections such that the integrated door can be opened together with a portion of the end bar, so that passage through the integrated door without the obstacle of a disadvantageous bottom-level is guaranteed. The integration of a door in the gate according to the invention obstructs the safety system according to the invention in no way, not even with different closure positions of the door, since the object-detecting beam path is provided in the operating position below the individual sections of the end strip.

1

door leaf

2

lower end strip

3

support part

9

Horizontal section

5

vertical section

6

swivel arm

7

swivel axis

8th

holder element

9

stop element

10

supporting role

11

cover

12

reception area

13

electrical connecting line

14

opening

15

component

16

optical detector

17

screwing

18

Kardanplatten

19

pintle

20

axis of rotation

21

location hole

Claims (21)

Gate, in particular sectional door, with: a door leaf which can be raised and lowered by a drive motor ( 1 ); and with one at the lower end of the door leaf ( 1 ) attached end bar ( 2 ); characterized in that an optical detection device ( 16 ) for a collection of any below the closing bar ( 2 ) is arranged befindlicher objects, which is signal coupled to the drive motor; and that a facility ( 3 . 6 . 8th ) for the pivotable mounting of the optical detection device ( 16 ) in the area of the end bar ( 2 ) is provided. Gate according to claim 1, characterized in that the optical detection device ( 16 ) between an operating position for detecting any objects below the end bar ( 2 ) and a storage position pivotable on the device ( 3 . 6 . 8th ) is stored. Gate according to claim 2, characterized in that the optical detection device ( 16 ) in the storage position flush with the end strip ( 2 ) completes. Gate according to at least one of the preceding claims, characterized in that the optical detection device ( 16 ) as a light barrier device ( 16 ) is trained. Gate according to claim 4, characterized in that the light barrier device ( 16 ) from egg a first pivotable component ( 15 ) and an opposing second pivotable component. Gate according to claim 5, characterized in that the first pivotable component ( 15 ) of the light barrier device ( 16 ) as a light emitting device and the second pivotable component of the light barrier device ( 16 ) is designed as a light receiving device. Gate according to claim 5, characterized in that the first pivotable component ( 15 ) of the light barrier device ( 16 ) as Lichtsende- / light receiving device and the second component of the light barrier device ( 16 ) is designed as a light reflector. Gate according to at least one of claims 5 to 7, characterized in that the first component ( 15 ) and the second component of the light barrier device ( 16 ) each side of the lower end strip ( 2 ) on an associated carrier part ( 3 ) are provided pivotably. Gate according to claim 8, characterized in that the first component ( 15 ) and the second component of the light barrier device ( 16 ) each in an associated holder element ( 8th ), wherein the holder elements ( 8th ) each via pivot arms ( 6 ) on the associated carrier parts ( 3 ) are hinged pivotally. Gate according to claim 9, characterized in that each holder element ( 8th ) at least one support roller ( 10 ) for supporting the pivoting movement from the operating position to the storage position. Door according to at least one of claims 8 to 10, characterized in that on each support part ( 3 ) at least one stop element ( 9 ), for example, a stop screw, for a suitable positioning of the respective associated holder elements ( 8th ) is provided in the operating position. Gate according to at least one of the preceding claims, characterized in that the pivoting movement of the optical detection device ( 16 ) takes place from the storage position in the operating position due to gravity and from the operating position to the storage position by conditioning with the bottom surface. Door according to at least one of claims 1 to 12, characterized in that the pivoting movement of the optical detection device ( 16 ) takes place by means of an electrical control. Gate according to at least one of the preceding claims, characterized in that the optical axis of the optical detection device ( 16 ) for detecting possible objects in the operating position slightly below the end bar ( 2 ) and parallel to the end bar ( 2 ) is aligned. Gate according to at least one of claims 8 to 14, characterized in that the optical detection device ( 16 ) in fully lowered gate in the storage position in one, in the respectively associated carrier part ( 3 ) receiving area ( 12 ) is received in such a way that the flush closure with the lower end strip ( 2 ) he follows. Gate according to at least one of the preceding claims, characterized in that the optical detection device ( 16 ) by connecting lines ( 13 ) Is connected to a control device which controls the drive motor in response to the detected data. Gate according to at least one of claims 8 to 16, characterized in that a cover ( 11 ), preferably made of rubber or the like, is provided for covering the optical detection device in the storage position, which on each support part ( 3 ) and flush with the end strip ( 2 ) completes. Door according to at least one of the preceding claims, characterized in that the end strip ( 2 ) is made of rubber or the like. Door according to at least one of the preceding claims, characterized in that the door leaf at the bottom of a gimbal of the device ( 3 . 6 . 8th ) for a gravitational pivotal movement thereof about a parallel to the underside of the door leaf ( 1 ) aligned axis of rotation. Door according to claim 19, characterized in that a screw-on ( 17 ) at the bottom of the door leaf ( 1 ) in the area of the institution ( 3 . 6 . 8th ) is mounted on which support plates ( 18 ) for receiving pivot pins ( 19 ) are provided, wherein the pivot pins ( 19 ) in associated receiving openings in the carrier part ( 3 ) engage for a pivot bearing same. Gate according to at least one of the preceding claims, characterized in that the door leaf ( 1 ) of the door has an integrated door.