EP3583283B1 - Door - Google Patents

Description

The invention relates to a door with a door leaf that can be moved along a path between a closed position, in which it is arranged approximately in a vertical plane, and an open position, in which it is arranged overhead, approximately in a horizontal plane, along a path that is predetermined by a guide rail arrangement of door leaf members arranged one behind the other in the direction of movement of the door leaf and hingedly connected to one another with respect to axes running perpendicular to the specified path, the guide rail arrangement having two guide rails arranged in the area of the side edges of the door leaf running parallel to the specified path, each of which has a first, approximately parallel to a lateral edge of the door leaf in the closed position approximately in the direction of gravity essentially in a straight line, a second, approximately parallel to a lateral edge of the door leaf in the open position and essentially straight approximately in the horizontal direction section and an arcuate section connecting the rectilinear sections to each other, in which in the area of the end of the second rectilinear section facing away from the arcuate section a door leaf in the open position in the direction of the closed position and with the help of a fastening device with respect to the second rectilinear portion fixed biasing means is attached.

Such gates are used for closing conventional garages but also for closing building openings with a height of 3.50 m or more, as they occur in industrial halls, warehouses, aircraft hangars or the like, where appropriate clearance heights are required.

During an opening or closing movement, the individual, articulated door leaf members pass through an arcuate guide rail section in which they are deflected between a vertical orientation, which they assume in the closed position, and a generally horizontal orientation, which is assumed in the open position. This enables the door leaf to move without having to provide an excessive amount of space for large-area closing elements that swivel out. In the case of corresponding doors, the opening movement is usually supported with the aid of a weight compensation arrangement which generally has a spring arrangement and with which the door leaf is urged into the open position.

The spring arrangement is tensioned during the closing movement while absorbing the potential energy given off by the door leaf. The energy stored in the spring arrangement is then available to support the opening movement. For this purpose, the spring arrangement is usually coupled to the door leaf via a traction device. The traction means is attached on the one hand to the lower edge of the door leaf in the closed position and can be wound onto a winding device at its other end in the course of the opening movement.

In the open position, the door leaf is approximately in a horizontal plane, whereby the lower edge of the door leaf trailing during the opening movement can still be arranged in the area of the arcuate guide rail section and also drops in the open position with respect to the other door leaf members in the direction of the closed position. This facilitates the initiation of the closing movement, in which the force exerted by the counterbalance arrangement on the door leaf and pushing the door leaf towards the open position has to be overcome, because the weight of the door leaf is not completely absorbed by the second straight guide rail section, but rather already in the area of the arcuate guide rail section has a component running parallel to a tangent to this arcuate section, which component is available to accelerate the door leaf in the direction of the closed position.

Even with this arrangement of the door leaf in the open position, in which the lower door leaf member already hangs down a little, the available weight is in many cases not sufficient to provide a breakaway torque to initiate a closing movement, in which the traction means coupled to the weight compensation device must be unwound from the winding device in order to enable a closing movement at all. For this reason, conventional doors of the type described above are usually equipped with a pretensioning device attached in the region of the end of the second rectilinear section facing away from the arcuate section, with which the door leaf is urged in the open position towards the closed position.

Such a pretensioning device can have a compression spring running approximately parallel to the second rectilinear section running around the spring axis, which is compressed when the opening position of the door leaf is reached and so tensioned in that the door leaf edge leading during the opening movement runs up against a contact area of the pretensioning device or the compression spring and compresses the compression spring against its preload force. The energy stored in this way in the compression spring is then available to provide a sufficient breakaway torque for the initiation of the closing movement against the force of the weight compensation device urging the door leaf into the open position.

Goals according to the preamble of claims 1 and 11 are in the WO 02/055824 A1 specified.

It has been shown, however, that the assembly of doors equipped with a corresponding pretensioning device is very time-consuming.

In view of these problems in the prior art, the invention is based on the object of providing a door that is easy to assemble and with which a breakaway force sufficient to initiate a closing movement can also be made available when a door leaf coupled to the door leaf and the door leaf in the open position urging weight compensation device is used.

According to the invention, this object is achieved by a further development of the known goals, which is essentially characterized in that the fastening device for the prestressing device comprises a plug-in connection arrangement, in particular has a fastening tab that can be inserted into a corresponding receptacle.

The invention is based on the knowledge that the observed assembly effort is primarily due to the fact that the fastening device of conventional goals has a screw connection with two, three or more screws, whereby it must be ensured during the assembly that the screwing points to each other with high accuracy be aligned. A considerable amount of time is required for this. Sometimes even two people are required to properly assemble the pretensioning device.

In the context of the invention, it was recognized that a sufficiently secure fastening of the pretensioning device with respect to the second rectilinear section can also be achieved with the help of a simple plug-in connection in which an insert part is simply inserted into a suitable receptacle, whereby it can be ensured by appropriate shaping that the plug-in connection ensures that the position of the edge of the door leaf leading during the opening movement is in the correct position in the open position.

In a preferred embodiment of the invention, the plug connection can be provided by a simple fastening strap which is inserted into a corresponding receptacle during assembly.

A further simplification of assembly can be achieved if the fastening device has a pretensioning device carrying the pretensioning device, which preferably has a helical circumferential compression spring, preferably a spring axis running approximately parallel to the second rectilinear section. In this embodiment of the invention, the fastening device and the pretensioning device can be provided as a preassembled subassembly which is simple with respect to the second rectilinear section the guide rail can be mounted, the correct positioning of the pretensioning device can already be prepared by the pre-assembly of the pretensioning device and fastening device.

In the last-described embodiment of the invention, the fastening tab can be arranged on the console, in particular have an expression of a console wall that is partially encircled by a slot penetrating the console wall, while in the assembled state the receptacle, which receives the tab protruding from the console wall, into which the fastening tab can be inserted in the course of assembly, is implemented in the second rectilinear section and / or a holder of the guide rail.

The plug connection provided according to the invention is stabilized in the open position by the contact of the leading edge of the door leaf during the opening movement on a contact area of the pretensioning device under the action of the weight compensation device pushing the door leaf into the open position, in that the fastening tab is pushed against a limitation of the receptacle. The delimitation against which the fastening tab is urged in the open position of the door leaf can have an edge of the receptacle running approximately in the direction of gravity.

Even though the plug-in connection explained above enables the pretensioning device to be correctly positioned, it has proven to be particularly expedient within the scope of the invention if the fastening device, in addition to the plug-in connection, has a thread designed for receiving a fastening screw, which is preferably threaded through a threaded hole in a console wall, in particular the console wall having the fastening tab, is formed. The plug connection provided according to the invention can be secured with a corresponding screw connection. The plug connection enables correct positioning, which facilitates the screw connection and thus also simplifies the assembly of goals according to the invention overall in this embodiment.

In the last-described embodiment of the invention, the threaded hole and the fastening tabs, which can both be embodied in a console wall, can be spaced apart from one another in the longitudinal direction of the second rectilinear section. In this embodiment of the invention, after the plug connection has been produced, there is still enough space available for producing the screw connection.

The above-described self-locking of the fastening device under the effect of the force exerted by the weight compensation device on the door leaf can be ensured particularly reliably if the fastening strap extends from the console wall in the direction of the end of the second straight section facing away from the arcuate section and / or a Fastening tab provided in the area of the second guide rail section or a holder thereof extends, starting from a connection area, in the direction of the arcuate guide rail section.

As already explained above, in a preferred embodiment of the invention, the fastening strap is attached to the bracket carrying the prestressing device. In this way, protruding fastening elements can be avoided in the area of the guide rail itself. This makes it easier to assemble goals according to the invention because it is not absolutely necessary to ensure that cantilevered components which impede the movement of the door leaf are correctly positioned on the guide rail arrangement.

In gates according to the invention, in which the plug connection is additionally secured with a screw connection, it has proven to be useful if the thread of the screw connection is arranged in the longitudinal direction of the second rectilinear section between the tab and the arcuate section. The screw required to produce the screw connection can penetrate a recess in the second rectilinear section and / or a holder of the guide rail, with a screw head in the assembled state on a boundary surface of the second rectilinear section facing away from the bracket the guide rail and / or the holder of the guide rail can rest.

A particularly compact design of goals according to the invention can be achieved if the bracket carrying the pretensioning device is at least partially received in the second straight section of the guide rail, which is preferably designed as a J-rail or C-rail, in particular rests against the guide rail section with the bracket wall having the fastening tab . This particularly compact design is favored by the plug connection provided according to the invention, because such a plug connection can be easily produced without excessive installation space, while the screw connections otherwise provided in the prior art with two, three or more screwing points require such an installation space, so that assembly in the rail itself is hardly possible.

In conventional gates, the pretensioning device rests with an abutment area on the gate leaf edge advancing during the opening movement. If the door leaf is made from so-called sandwich panels, in which the individual door leaf members comprise two metal shells, between which a layer of insulating material is attached, this can lead to deformation of the metal shells in the area of the leading edge during the opening movement.

In the context of this invention, this deficiency can be eliminated in that the pretensioning device in the open position rests with its contact area on a roller holder for a guide roller received in the guide rail, which is attached to it in the area of the leading edge of the door leaf during an opening movement. Such a roll holder is usually made so stable that there is no need to worry about deformation under the action of the pretensioning device.

The particular embodiment of the invention described above, in which the contact area rests on the roller holder, also enables a construction in which the distance between the spring axis and that on the second guide rail section adjacent console wall in a direction perpendicular to this console wall is less than 100 mm, preferably less than 75 mm, in particular about 50 mm. In this way, the leverage effect when the door leaf or the roller holder runs into the contact area of the pretensioning device, which determines the forces occurring in the area of the plug connection, can be reduced. Overall, in this way, the plug connection can be further secured during continuous operation of doors according to the invention.

As is known, complete closure of the opening to be closed with the door leaf can also be ensured in the closed position if only a small room height is available above the opening, in that the guide rail arrangement interacts with a guide roller attached to the edge leading during the opening movement Supplementary rail is equipped, which has a third rectilinear section running approximately parallel to it above the second rectilinear section.

This supplementary rail is only used to guide the door leaf element which is leading during the opening movement or trailing during the closing movement. With the supplementary rail, it is avoided that this door leaf member or the guide rollers attached to it have to pass through the arcuate guide rail section in the course of the closing movement. In this way, a complete room closure can be ensured even if there is only little installation space available above the opening to be closed. In this embodiment of the invention, the bracket of the fastening device for the pretensioning device can be arranged in the second straight guide rail section and, in the open position, interact with the roller holder for the guide roller received in the supplementary rail.

When the guide roller attached in the area of the leading edge during the opening movement is attached to the holder attached to the leading edge during the opening movement in the area of this edge via a pivot axis that is parallel to the joint axes and is attached in the area of this edge, the contact area can in gates according to the invention in the area of the pivot axis rest on the roller holder. A prestressing arrangement according to the invention designed for the production of a gate according to the invention can have a prestressing device and a bracket for it, wherein a bracket wall is equipped with a fastening strap which can be implemented in the form of an expression that partially, in particular U-shaped, encircle a slot penetrating the bracket wall is.

Fig. 1

eine perspektivische Darstellung eines erfindungsgemäßen Tors,

Fig. 2

eine vergrößerte Darstellung des Tors gemäß Fig. 1,

Fig. 3a)

eine weitere perspektivische Darstellung des erfindungsgemäßen Tors gemäß Fig. 1,

Fig. 3b)

eine perspektivische Anordnung einer Vorspannanordnung für ein erfindungsgemäßes Tor, und

Fig. 4

eine Schnittdarstellung der Vorspannanordnung gemäß Fig. 3.

The invention is explained below with reference to the drawing, to which express reference is made with regard to all details that are essential to the invention and not highlighted in more detail in the description. In the drawing shows

Fig. 1

a perspective view of a gate according to the invention,

Fig. 2

an enlarged view of the gate according to Fig. 1 ,

Fig. 3a)

another perspective view of the gate according to the invention according to Fig. 1 ,

Fig. 3b)

a perspective arrangement of a prestressing arrangement for a gate according to the invention, and

Fig. 4

a sectional view of the biasing arrangement according to FIG Fig. 3 .

In Fig. 1 a door according to the invention is shown in the area of the rear end of the second straight and approximately horizontal guide rail section 110 facing away from the curved section in a door leaf position shortly before reaching the open position. As especially by looking at the representations in the Figures 1 and 2 As can be seen, the guide rail arrangement 100 of the door shown in the drawing has, in addition to the second straight guide rail section 110, a supplementary rail 120 running above this section, which serves to guide guide rollers 22, which are attached via a roller holder 20 to the door leaf member 10 advancing during an opening movement.

In the area of the rear end of the second guide rail section 110, a pretensioning arrangement designated as a whole by 50 is attached. The pretensioning arrangement 50 has a console 80 which is received in the second guide rail section 110 and which carries a compression spring 60. When the open position is reached, the roller holder 20 runs onto the compression spring 60 and presses it together against its pretensioning force. The energy stored in this way in the compression spring 60 is available to provide a breakaway torque sufficient to initiate the closing movement.

How particularly good in Fig. 2 As can be seen, the pretensioning device 60 has a helical compression spring 64 running around a spring axis running parallel to the second straight guide rail section. At its end facing the arcuate guide rail section (not shown), the pretensioning device 60 is equipped with a contact area 62 made of a flexible material such as an elastomer. As with the Fig. 2 As can be clearly seen, the guide rollers 22 received in the supplementary rail 120 are attached to the roller holder 20 via a holder 30, the holder 30 being connected to one another in an articulated manner perpendicular to the longitudinal axis of the second guide section 110 and parallel to the hinge axes with respect to which the door leaf members are articulated are, extending pivot axis 32 is pivotably attached to the roller holder 20 or the leading edge of the door leaf member 10 during the opening movement. The contact area 62 of the pretensioning device 60 comes into contact with the roller holder 20 in the area of the pivot axis 32.

According to Fig. 3a ) the bracket 80 with a bracket wall 86 running approximately in a vertical plane rests on the second guide rail section 110 and is partially received therein, both the second guide rail section 110 and the supplementary rail 120 being designed as J-rails. The console wall 86, with which the console 80 rests against the wall of the second guide rail section, has a fastening tab 82 which is formed in the form of an expression of the console wall 86. The expression 82 is bordered by a U-shaped slot extending through the console wall 86. The expression 82 protrudes from the console wall 86 (cf. Figure 3b ) and, in the assembled state, is inserted into a receptacle 112 of the second guide rail section 110 or a holder of the second guide rail section 110. The fastening tab 82 extends from the console wall 86 in the direction of the end of the second guide rail section 110 facing away from the curved guide rail section of the guide rail arrangement 100, with a receptacle being formed between the fastening tab 82 and the console wall 86 in which, in the assembled state, a receptacle is attached to the Recording 112 adjoining wall section of the second guide rail section 110 or the holder for it is received. In the assembled state, an edge of the receptacle 112 running approximately in the direction of gravity rests on the fastening tab 82.

The bracket 80 has a threaded bore 84 on the side of the fastening tab 82 facing the arcuate guide rail section, which in the assembled state is aligned with a further recess in the second guide rail section 110 or a holder for it. A securing screw can be screwed into the threaded bore 84 through the second recess 114 in order to secure the plug connection formed by the fastening tab 82 and the receptacle 112. In the assembled state, the threaded bore 84 is arranged between the fastening tab 82 and the arcuate guide rail section of the guide rail arrangement 100.

According to Fig. 4 the distance between the console wall 86 resting on the second guide rail section 110 and the spring axis 66, which is encircled by the helically encircling compression spring 64, is approximately 50 mm. In this way, the forces acting when the roll holder 20 hits the contact area 62 of the pretensioning device 64 in the area of the fastening tab 82 can be kept so small that there is no need to fear either the fastening tab 82 will tear or the receptacle 112 will tear.

The invention is not limited to the embodiment explained with reference to the drawing. It is intended to provide a pretensioning arrangement on each side of the door leaf in order to provide a symmetrical introduction of force. In contrast to the embodiment of the invention shown in the drawing, the pretensioning device can also be implemented in the form of a tension spring which is stretched when the door leaf is in the open position. The invention can also be used with goals that are designed without an additional rail 120.

REFERENCE LIST

10

Door leaf link

20th

Roll holder

22nd

Leadership role

30th

holder

32

Swivel axis

50

Biasing arrangement

60

Pretensioning device

62

Investment area

64

Compression spring

66

Spring axis

80

console

82

Fastening tab

84

Threaded hole

86

Console wall

100

Guide rail assembly

110

Second guide rail section

112

admission

114

Recess

120

Supplementary rail

Claims (15)

1. A gate with a gate leaf movable along a path predefined by a guide rail arrangement (100) between a closed position, in which it is arranged approximately on a vertical plane, and an open position, in which it is arranged overhead approximately on a horizontal plane, said gate leaf having a plurality of gate leaf members (10) arranged one behind the other in the direction of the gate leaf movement and connected to each other in an articulated manner relative to axes of articulation running perpendicular to the predefined path, wherein the guide rail arrangement has two guide rails arranged in the area of the lateral edges of the gate leaf running parallel to the predefined path, each of which has: a first section running approximately parallel to a lateral edge of the gate leaf in the closed position approximately in the direction of gravity and substantially approximately rectilinearly; a second section (110) running approximately parallel to a lateral edge of the gate leaf in the open position substantially rectilinearly and approximately in a horizontal direction; and an arched section joining the rectilinear sections to each other, wherein a pretensioning device (60), which forces the gate leaf in the open position towards the closed position and which is fixed, with the help of a fixing device, relative to the second rectilinear section (110), is attached in the area of the end of the second rectilinear section (110) facing away from the arched section, characterised in that the fixing device comprises a plug connection arrangement and in particular has a fixing tab (82) which can be inserted into a corresponding recess (112).
2. The gate according to claim 1, characterised in that the fixing device has a console (80) supporting the pretensioning device, which preferably has a compression spring (64) wound in a helical manner around a spring axis (66) running approximately parallel to the second rectilinear section (110).
3. The gate according to claim 2, characterised in that the fixing tab (82) is arranged on the console (80) and in particular has a protrusion from a wall of the console which is partially surrounded by a slit penetrating the console wall (86).
4. The gate according to one of the preceding claims, characterised in that the recess (112) is executed in the second rectilinear section (110) and/or in a guide rail support.
5. The gate according to one of the preceding claims, characterised in that the fixing device has a thread which is designed to receive a fixing screw and is preferably formed through a threaded hole (84) in a console wall (86), in particular in the console wall (86) having the fixing tab (82).
6. The gate according to claim 5, characterised in that the threaded hole (84) and the fixing tab (82) are at a distance from each other in the longitudinal direction of the second rectilinear section (110).
7. The gate according to one of claims 3 to 6, characterised in that the fixing tab (82), extends from the console wall (86) towards the end of the second rectilinear section (110) facing away from the arched section.
8. The gate according to one of claims 5 to 7, characterised in that the thread is arranged between the tab (82) and the arched section in the longitudinal direction of the second rectilinear section (110).
9. The gate according to one of claims 5 to 8, characterised in that the fixing screw goes through a recess (114) in the second rectilinear section (110) and/or a guide rail support.
10. The gate according to one of claims 2 to 9, characterised in that the console (80) is received, in part at least, in the second rectilinear section (110) preferably configured as a J-shaped or C-shaped rail, and in particular abuts, with the console wall (86), the guide rail section (110).
11. The gate according to one of the preceding claims, characterised in that, in the open position, the contact area (62) of the pretensioning device (60) abuts a roller support (20) for a guide roller (22), which is received in the guide rail, attached to the gate leaf in the area of what is the leading edge of the gate leaf during an opening movement.
12. The gate according to claim 10 or 11, characterised in that the distance between the spring axis (66) and the console wall (86) abutting the second guide rail section (110) is less than 100 mm, preferably less than 75 mm, in particular is approximately 50 mm.
13. The gate according to one of the preceding claims, characterised in that the guide rail arrangement has additional rails (120) interacting with the guide roller (22) attached in the area of what is the leading edge during the opening movement, said additional rails having a third rectilinear section located above, and running approximately parallel to, the second rectilinear section (110).
14. The gate according to one of claims 11 to 13, characterised in that the guide roller (22) attached in the area of what is the leading edge during the opening movement is attached in the area of said edge by means of a support (30), which is attached to what is the leading edge during the opening movement such that it swivels relative to a swivel axis (32) running parallel to the axes of articulation, and the contact area (62) can abut the roller support in the area of the swivel axis (32).
15. A pretensioning arrangement for a gate according to one of the preceding claims comprising a pretensioning device and a console therefor.

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