DK2514896T3

DK2514896T3 - A safety device

Info

Publication number: DK2514896T3
Application number: DK12164707.7T
Authority: DK
Inventors: Marc André Ruiter
Original assignee: Alpha Deuren Int Bv
Priority date: 2011-04-20
Filing date: 2012-04-19
Publication date: 2019-03-11
Also published as: PL2514896T3; EP2514896A3; EP2514896A2; EP2514896B1; DE202011000948U1; ES2713093T3

Description

Securing device

The invention relates to a securing device for a mobile door leaf of a door, in particular of a sectional door, which, via guiding rails, is displaced between an opening position and a closing position. Laterally, the door leaf is equipped with pull cables, which are attached in the lower area of the door leaf, and are respectively guided via deflections. They may as well cooperate with a spring apparatus.

Such a door is known for example from the document DE 79 12 249 U1. In this case, a cable pull with a door suspension fixture and a slack-line protection incorporated therein is described for a multi-section overhead door or roll-up door. In this case, the door suspension fixture includes an attachment device for the pull cable in addition to a switch for turning off the cable pull motor, and an actuation part for the switch.

The document DE 101 13 847 discloses a securing device for a door leaf, which is movable along a specified path between an opening position, preferably disposed overhead, and a closing position, with at least one securing element, which is adjustable between a release position, in which it releases the door movement, and a securing position, in which it counteracts a door leaf protection if required cooperating with further securing elements. In this case, the invention is distinguished in that the securing element set to the securing position, at least along a first portion of the specified path transitioning into the opening position, if required cooperating with at least one further securing element counter-acts a closing movement of the door leaf from the opening position into the closing position, and in the closing position and/or along a second portion of the specified path transitioning into the closing position, if required cooperating with at least one further securing element, counter-acts an opening movement of a door leaf from the closing position into the opening position. In this case, at the axial end of the securing lever, a control cam is provided for actuating a switch of a drive apparatus for the door leaf during a pivoting of the securing lever from the release position into the securing position.

Usually, with multi-section overhead doors, respectively also with roll-up doors, pull cables are laterally affixed in the lower area of the doors, such that cable drums, in conjunction with a drive motor, upon an opening by means of a pull on the cables, may bring the multi-section overhead door or roll-up door into the opening position. In the direction of the closing position, the drive operates in the opposite direction. In this case, it is most important that for example in the event of rupturing of such pull cables, a canting of the individual sections occurs within the lateral guiding rails. The same would apply, if for example during failure of the securing devices or other instances, for example the door leaf runs against an obstacle. With the intention to avoid this from happening, such doors are equipped with so-called slack- line protections having the task of directly effecting a shutting-down of the drive motor in the event of such a pull cable rupturing or impacting on an obstacle.

From the document DE 295 03 553 U1, a monitoring apparatus for a carrying cable of a door leaf is known. The monitoring apparatus consists of an electrical arrester apparatus, which is switched into the carrying cable and connected to a drive motor, which is used for the movement of the door leaf. In the event of a cable rupture, the drive motor is automatically turned-off by the electrical arresting apparatus. Furthermore, a mechanical arresting apparatus is provided for the door leaf.

The document Die DE 202 04 194 U1 describes a safety switch device for switching a door drive with at least one carrying cable for a one-part or multi-part door leaf of a door, which includes an arresting device with at least two main parts, which are interconnected among each other pivotably around an axis. St least one of the main parts has an almost U-shaped frame, wherein a spring apparatus for developing a pre-tension between the two main parts around the axis and a cable attachment, which connects the at least one carrying cable to the arresting device in such a manner that, during normal operation of the door leaf, the two main parts are maintained in a resting position with regard to each other on account of the tension of the at least one carrying cable against the pre-tension of the spring apparatus.

The documents EP 1 808 563 A2 as well as WO 00/570 11 A1 describe in a similar manner securing devices for carrying cables of doors.

The object of the present invention is to provide a securing device for a mobile door leaf of a door, in particular of a sectional door, which is easy to mount and to adjust, cannot be manipulated, is inexpensively producible and exchangeable.

The problem of the invention is solved with the features of patent claim 1. In this case, the dependent claims represent a further embodiment of the inventive idea.

The invention is distinguished in that a securing device for a mobile door leaf of a door, in particular of a sectional door, which is displaced via guiding rails between an opening position and a closing position, is secured in such a way that the pull cables disposed laterally of the door leaf, are either both or only one charged by means of an additional securing device. In this case, the securing device is configured such that with the door leaf being closed, a continuous cable pull length adjustment is given.

The securing device may be affixed in an exchangeable manner to a basic part, which is located at the lower part of the door leaf or at the last section of a sectional door, by means of a simple mounting method by means of a screw connection. In this case, the securing device is simultaneously secured against rotation. The securing device consists of the basic part, which is completed by an upper part via an axis of rotation and functionally cooperates with the upper part also via the axis of rotation. Within the upper part, in a floating suspension, a connecting part is included, which is guided within a borehole of the basic part. Said connecting part, which may include a borehole, respectively also a thread, adjusts and determines the length of the cable pull by means of a set-screw and a therewith cooperating counter-nut. Said type of construction allows for a good accessibility to the set-screw also in the installed condition, which is not possible with the known state-of-the-art.

Moreover, the upper part is spring-loaded with regard to the basic part, such that with the pull cable not being connected, respectively in the event of changing the length or rupturing of the pull cable, the upper part in the position thereof is at least partially lifted-off of the basic part, respectively is pivoted away. With such a relative change of position of the upper part with regard to the basic part, simultaneously a sensor or switching element, which is located within the securing device, is activated by means of an actuating edge. Said sensor or switching element directly or indirectly intervenes in the motor circuit such that, upon response of the sensor or switching element, the motor function is momentarily stopped.

According to the invention, such a spring embodiment is selected, which, as a winding, is placed around the point of rotation of the upper part, and with one spring end props up against the basic part. The other spring end acts upon the floatingly supported connecting element. When lengthening the pull cable, thus the spring forces become effective and push a connecting element, and thereby also the upper part upwards, which simultaneously effects the response of the sensor or of the switching element, and thereby effects a stopping of the door.

In a non-inventive embodiment, the connecting element is not charged by the spring element. Thereby, the connecting element is retained against the upper part of the securing device by means of the pull cable. The second spring end rather bears directly against the upper part. Said construction type provides for a larger mobility of the connecting element than with the first preferred embodiment and guarantees an interference-free door operation.

Such embodiments of the securing device are easy to mount and also exchangeable, and require only little construction space, and are very easily accessible. As the sensor or switching element is located below the upper part of the securing device, the element is sufficiently protected against manipulation, respectively damage. In the installed condition, the full functionality of such a sensor or switching element may be tested, without having to uninstall parts.

For example, the securing device may be manufactured from plastic material or an injection moulding. Such a manufacturing type drastically reduces the manufacturing cost in a mass-produced article.

Further advantages, features and application possibilities of the present invention will result from the following description in conjunction with the exemplary embodiments illustrated in the drawings.

The terminology and associated reference numerals itemized below in the list of reference numerals will be employed throughout the description, the claims and the drawings. In the drawing, represents:

Figure 1 a first perspective illustration of an application of an inventive securing device;

Figure 2 a lateral illustration of a securing device in the installed condition;

Figure 3 a front view of the securing device according to Figure 2;

Figure 4 a detailed illustration of an installed securing device;

Figure 5 a sectional illustration through a securing device installed at a door;

Figure 6 like Figure 5, however, with a securing device in the actuated condition;

Figure 7 a securing device in a perspective illustration, seen from below;

Figure 8 a top view on an upper part of the securing device;

Figure 9 a section through a non-inventive embodiment of a securing device in the closed condition;

Figure 10 like Figure 9, however, in the opened condition;

Figure 11 the securing device according to Figure 9, without connecting element;

Figure 12 a preferred embodiment of a spring element in a perspective illustration, and

Figure 13 a perspective illustration of the securing device, seen from the back side.

With the illustration of Figure 1 is represented a mounting part 3, which, by means of screw elements 4, is installed at a non-illustrated door leaf of a door, in particular of a sectional door in the lower area of the last section. From Figure 1 in the upper portion, a securing device 1, 40 is visible, which is connected to a pull cable 5, which is guided via a deflection 11. The direct connection of the pull cable 5 is accomplished via the securing device 1,40 and via a setscrew 6 in conjunction with a counter-nut 14.

On a joint axis 12, the deflection 11 is connected to a roller 2, which is affixed on the outside. A covering 13 protects this portion with the deflection 11.

In the lateral view of Figure 2 is revealed that, on the one hand, the pull cable 5 is connected to the securing device 1, 40, for example via an eyelet 25, and after leaving the deflection 11, the pull cable 5 goes to a non-illustrated winding shaft, in order to execute the actuation of the door leaf. For the axis 12, already known from Figure 1, a borehole 23 is provided within the deflection 11.

The front view of Figure 3, illustrates once more, the mounting of the securing device 1, 40 in the upper portion on the mounting part 3. In this case, the securing device 1, 40 is non-positively and positively connected to the mounting part 3 by means of a screw element 15. Furthermore, Figure 3 reveals a cable connection 10 of the pull cable 5. For preventing the pull cable 5 from accidentally leaving the deflection 11, for example in the event of pull cable 5 rupturing, a pull cable protection 22 is provided in the area of the deflection 11. Said pull cable protection 22 prevents the pull cable 5 from moving out of the deflection 11, for example in the event the connection of the pull cable 5 would open in the area of the eyelet 25.

Essentially, the securing device 1,40 consists of a basic part 9, which includes a recess 21 and is attached to the mounting part 3 via the screw element 15 in conjunction with a nut 20. The recess 21 ensures that for example entered water does not remain in the securing device, and thereby is able to drain.

An upper part 7 of the securing device 1,40 is connected to the basic part 9 via an axis of rotation 8. A break-through 34, as revealed in Figure 8, is provided within the upper part 7. The break-through 34 is configured to be oval, and preferably, includes catches 35, which protrude to the inside of the break-through. Preferably, said lateral catches 35 have the shape of a section of an arc of a circle or the like, wherein a connecting element 16 props up on the upper rounding. The connecting element 16 becomes visible through the break-through 34. The set-screw 6, which is secured by means of the counter-nut 14, passes through the connecting element 16. The linked pull cable 5 is connected via a length adjustment by means of the set-screw 6, via the eyelet and the cable connection 10.

In a partially cut illustration, the inventive embodiment of the securing device 1 is represented in such a position that corresponds to the installation situation of Figure 4. However, for the sake of clarity, the set-screw 6, and also the cable connection 10 have not been illustrated. A round through-bore 32, through which the connecting element 16 passes, is provided within the basic part 9. In this case, the connecting element 16 is configured as a circular structural component with a guiding area 33, and, in the upper part on its circumference, it includes a surrounding depression 26. The catches 35, already described according to Figure 8, and a spring element 28 engage into said depression 26, and thereby allow the connecting element 16 to be floatingly embedded within the upper part 7, and, when pivoting the upper part 7 about the axis of rotation 8, the force of the spring element 28 alters the relative position of the connecting element 16. A borehole 19 for the connection to the set-screw 6 is provided in axial direction within the connecting element 16. In this case, also a non-illustrated thread could be provided within the borehole 19.

The securing device 1 is equipped with a spring element 28, which allows for modifying the position of the upper part 7 with regard to the basic part 9 in the event the pull cable 5 is rupturing. In this case, the spring element 18, on the one hand, adapts around the basic part 9 or props up against the latter, and the other end of the spring element 27 is embedded within the depression 26 of the connecting element 16. By embedding the spring element end 27 into the connecting element 16, upon response of the securing device 1, automatically a change of position of the connecting element 16 around the axis of rotation 8 is realized. With the catches 35, the upper part 7 is pivoted around the point of rotation by means of the connecting element 16. Said change of position of the upper part 7 results in a sensor or a switching element 29 being actuated by means of an actuating edge 31 or the like, in this case while using a switching flag 30. The sensor or switching element 29 is electrically connected to the motor circuit in such a manner that upon response of the sensor or switching element 29 a momentarily stopping of the motor drive is realized.

Figure 6 clearly reveals the change of position of the upper part 7 with regard to the basic part 9. It is obvious that the connecting element 16, on account of the spring element 28, has changed the relative position thereof with regard to basic part 9. Said illustration of Figure 6 also reveals the response of the sensor or switching element 29 via an actuating edge 31 and a switching flag 30. Simultaneously, the upper part 7 has an abutment 24, which delimits the pivoting movement of the upper part 7 with regard to the basic part 9.

From the illustration of Figure 7, which shows the securing device 1 from the underside thereof, in particular the continuous recess 21 is visible, through which drainage of entered water is realized.

From Figure 9 a further non-inventive embodiment of the securing device 40 is made known. In this exemplary embodiment, the connecting element 16 is not charged by the spring element 28. In this embodiment as well, the connecting element 16 rests floatingly on the catches 35. Thus, the spring element 28 with the spring ends 27 thereof props up on the basic part 9 and against the upper part 7.

Underneath the upper border thereof, the connecting element 16 includes a surrounding groove 36, which in Figure 9 corresponds to a half-borehole 36 within the basic part 7. At the same time, the half-borehole 36 is aligned with a retaining surface 42 of the upper part 7. Thus, it is possible to push a securing element 49 through the half-borehole 36, in order to hold the securing device 40 together against the spring force, and in order to facilitate the mounting (Figure 13).

The position of the securing device 40 with the upper part 7 lifted by means of the spring element 28 can be seen in Figure 10. Also lifting the connecting element 16 is clearly visible.

In the illustration of Figure 11, the missing connecting element 16 allows for making the area of the catch 35 and the connecting path for the securing element 49 visible. The here non-illustrated securing element 49 passes in this case through a borehole 43 of the basic part 9 and therewith aligning retaining surfaces 42 in the upper part 7. If, after completed mounting, the securing element 49 is not needed any more, it may be placed into a parking borehole 48. However, the securing element 49 may be employed for testing purposes of the sensor or switching element 29 via an opening 38. An electrical connection 39 is provided at the securing device 40. The axis of rotation 8 is secured by means of a securing element 41.

The spring element 28 employed within the securing device 1,40 may be seen in more detail in an individual illustration of Figure 12. Starting at a winding 44 with a reception area 45 for the axis of rotation 8, two spring arms 46 outstretched in the resting position are provided, which end in areas 47 in the spring element ends 27, which are bent opposite each other.

List of reference numerals 1 securing device 2 roller 3 mounting part 4 screw element 5 pull cable 6 set-screw 7 upper part 8 axis of rotation 9 basic part 10 cable connection 11 deflection 12 axis 13 covering 14 counter-nut 15 screw element 16 connecting element 17 break-through 18 guiding bushing 19 borehole 20 nut 21 recess 22 pull cable protection 23 borehole 24 abutment 25 eyelet 26 depression 27 spring element end 28 spring element 29 sensor or switching element 30 switching flag 31 actuating edge 32 through-borehole 33 guiding area 34 break-through 35 catch 36 half borehole 37 flange 38 opening 39 electrical connection 40 securing device 41 securing element 42 retaining surface 43 borehole 44 winding 45 reception area 46 spring arm 47 bent area 48 parking borehole 49 securing element

Claims

A locking device (1.40) for a site-variable door leaf in a door, in particular a sectional door, which is driven via guide rails between an opening position and a closing position, the door leaf being laterally equipped with pull ropes (5) fixed in the lower area of the door. the door leaf and each are controlled via overthrows (11), wherein the attachment of at least one tow rope (5) via the securing device (1,40) is carried out such that, with the closed door leaf, a stepless adjustment of the towing rope length is provided, the securing device (1, 40) consists of a fixed base part (9) and an upper part which can be changed via its pivot axis (8) in its position with respect to the base part (9), with a movable connecting element (16) therein, in which a length change of the pulling rope ( 5) is detected by the upper part (7) and detected by a sensor or switching element (29) in the securing device (1.40), characterized in that the connecting element (16) is designed as a circular component with a control area (33). and, in the upper portion of its circumference, exhibits a circumferential recess (26), wherein the upper (7) exhibits an oval-shaped breakthrough (34) with laterally projecting carriers (35) engaging the recess (26) of the connecting member (16), the securing device (1, 40) further exhibiting a spring element (28) which, firstly, sneaks around or adjoins the base member (9), the second spring element end (27) being embedded within the recess (26) in the connecting element (16). ), the connecting element (16) being guided swimmingly in a passage bore (32) in the base part (9), in which there is a bore (19) through which an adjusting screw (6) is secured within the connecting element (16) in the axial direction. with a counter nut (14), where the tension rope (5) can be connected via a rope arrangement (10) and an eye (25) to the adjusting screw (6), where the pull rope (5) can be connected via a length adjustment by means of the adjustment screw (6). with the securing device (1.40), thus, if the tow rope (5) breaks or goes down, the position of the upper part (7) is changed relative to the base part (9) by means of the spring element (28), thereby turning the upper part (7) by means of the connecting element (16) via the carriers (35). about the pivot axis (8), that the sensor or switching element (29) is actuated via an actuating edge (31) located on the upper part (7).

A fuse device according to claim 1, characterized in that a signal produced directly or indirectly by an actuating edge (31) via the sensor or switching element (29) can directly or indirectly intervene in a motor function circuit.

A gate, especially a sectional gate, with at least one securing device (1, 40) according to the preceding claims.