WO1996004453A1

WO1996004453A1 - Quick-action roll-up gate

Info

Publication number: WO1996004453A1
Application number: PCT/EP1995/003064
Authority: WO
Inventors: Arno Klein
Original assignee: Arno Klein
Priority date: 1994-08-04
Filing date: 1995-08-01
Publication date: 1996-02-15

Abstract

The invention pertains to a device for closing off openings in buildings, in particular a roll-up gate, consisting of at least one strip of material (2) that can be rolled up on a winding shaft, with an articulated rod assembly (8) situated between the winding shaft and the end of the strip bordering the opening in the building.

Description

High-speed roller door

The invention relates to a device for

Closing building openings, in particular roller doors, consisting of at least one rollable web that can be rolled up on a winding shaft.

Such a high-speed roller door is known from DE 34 01 042 AI.

The known gate consists essentially of two webs that can be wound on spring-operated rollers. The front end is under the action of a guide member by a

Trolley is carried. This trolley is moved by a motor. When the door is closed, the two sheets, which can be made of plastic or textile material, for example, and which delimit an air layer in between, result in a good insulation effect. The low mass of the gate allows high opening and closing speeds.

A disadvantage of the known roller door is that the resistance of the door is given solely by the voltage under which the web is. This leads to the fact that the known gates are pushed in during strong winds. The object of the invention is to provide a high-speed roller shutter that has a stronger resistance to wind loads on ice.

This object is achieved in that a scissor linkage is arranged between the winding shaft and the end of the web delimiting the building opening.

The scissor linkage consists of a scissor cross or several scissor crosses connected to each other via joints. The poles of these scissor crosses support the track.

Due to the bending stiffness of the bars, a larger wind load can be absorbed by the gate.

The free end of the web that delimits the housing opening can also be designed as a deflection roller around which the web runs. In this case, one end of the web is attached to one side of the building opening, while the other end is attached to the winding shaft. The web is thus laid twice and led around a pulley that limits the opening of the building.

If the scissor linkage is arranged between two web layers in this way, the scissor linkage is invisible from the outside. This creates a more pleasing external appearance. By trapped between the tracks

Layers of air, such a gate also has a better insulation effect. Finally, the gate is also safer, since the linkage is clad inaccessible from the outside, thus avoiding the risk of crushing. The diameter of the wound web is advantageously kept small if two webs with two separate winding shafts are provided.

Because the winding direction of both webs is the same, the winding shafts can be coupled in a simple manner, for example by an endless toothed belt drive.

In certain cases it can be advantageous if the winding shaft is arranged vertically. The winding shaft is then perpendicular to the

Building opening. The end of the track that delimits the building opening can then be hung in a guide in order to relieve the dead weight in the area of the upper opening edge. It is then advantageously also carried out in the bottom of the floor.

The fact that it has a mounting frame which can be mounted on one side in front of the building opening, in particular can be hung in, makes the door particularly easy to mount. It is pre-assembled

Condition delivered. After attaching the bracket, the gate can simply be hung in front of the building opening.

The closing or opening times of the gate can be influenced when the scissor linkage

Has load weights. With a horizontal winding shaft, the closing time can be shortened. The same effect can be achieved if the load weights are attached to the scissors linkage above the crossing points with a vertical winding shaft. The weights are below the crossing points, the opening time is shortened.

An embodiment is also possible in which a linear drive acting on the scissor linkage is provided. For example, piston-cylinder units or spindle drives can be used as the linear drive, which adjust a base point of the scissor linkage on the movable articulations. However, a linkage on the joints of the scissor linkage or on the linkage itself is also fundamentally possible.

Because a spring shaft acting on the winding shaft is provided, the loading torque of the motor is advantageously uniform. The spring shaft can compensate for the weight of the unwound web, for example. It then supports the winding movement of the web with a horizontal winding shaft. The spring shaft is usually dispensed with in the case of a vertical winding shaft. However, if the web is pulled out by a linear drive acting on the scissors linkage, the spring shaft can cause the web to be wound up.

The course of the actuating force of a linear drive can also be influenced, for example, by the fact that a spring engaging the scissor system is provided.

To secure, for example if a drive chain breaks, it is provided that two separate spring shafts are positively connected to opposite shaft ends of the winding shafts. The winding shafts carry a gear wheel at each of their ends Corresponding toothed belts or chains are positively connected to the pinion of the spring shaft. If a belt drive breaks, the other spring shaft still holds the door.

The invention is in a preferred

Embodiment described with reference to a drawing, with further advantageous details can be found in the figures of the drawing. Functionally identical parts are provided with the same reference numerals.

The drawings show in detail:

1 a gate according to the invention,

2 is a side view of the gate according to the invention,

Fig. 3 is a plan view of the invention

Gate and

Fig. 4 is an isometric view in a schematically simplified manner.

In Fig. 1, 1 denotes the gate according to the invention. It surrounds a building opening 2 (FIG. 2), of the delimiting areas of which only the traffic area 3 is shown.

The gate consists of two winding shafts 4 and 5, each winding a web 6, 7. One end of the track is attached to the winding shaft, the other end of the track to a crossbar 8 delimiting the building opening. The crossbar 8 is held vertically displaceably in two lateral guides 9, 10. In addition, for better sealing, two sealing beads 11, 12, 13, 14 can be arranged parallel to the guide rails.

The drive takes place by means of a motor 15 which drives one end of both winding shafts 4, 5 via a belt drive 16 by means of toothed belts 17.

The winding movement is supported by two spring shafts 18a and 18b. Spring shaft 18a is coupled at one end to toothed belt 16 with motor 15 and winding shafts 4 and 5. The acts via an analog belt drive 19 with belt 20

Spring shaft 18b on both winding shafts 4 and 5 at the other end. Since the spring shafts act on different ends of the winding shafts, the door cannot fall if a spring or a toothed belt breaks. The winding shafts as well

Spring shafts 18a and 18b and the drive shaft of the motor are rotatably held in lateral bearing plates 21, 22, between which an upper crossbeam 23 also extends.

An upper scissor cross 24 and a lower scissor cross 25 are arranged between the upper fixed crossbeam 23 and the lower vertically movable crossbeam 8, the rods 26, 27, 28, 29 of which are connected to one another via joints 30, 31. In addition, the rods 26, 27 are articulated at the crossing point 32, while the rods 28, 29 have the crossing point 33. The upper scissor cross 24 is held in the joint 34 which is fixedly attached to the upper crossbeam 23. The other base of the scissors cross is accommodated in a horizontally movable manner in a guide 36 which is also fastened to the upper crossbeam 23. The lower scissor cross 25 is held in an analogous manner in joint 37, which is fastened to the lower crossbeam 8. The other base 38 of the lower scissor cross is horizontally displaceably accommodated in a guide 39 fastened to the lower crossbeam 8.

Finally, a viewing window 40 is arranged within the tracks 6, 7 at eye level. By attaching additional weights, for example at the crossing point 33, the

The closing time of the gate can be shortened. The motor 15 can also be replaced by a linear drive which adjusts the base point 35.

In the case of a vertical arrangement of the winding shafts, a load weight, which acts on the joint 30, for example, can support the closing movement; while a load weight, which acts on the joint 31, for example, supports the opening movement. A similar effect can be achieved by a tension spring, for example between the

Crossing points 32 and 33 is excited. A tension spring, the ends of which are articulated on the joints 30 and 31, supports the closing movement. Such springs can also act, for example, as compression springs on the displaceable base points 35 and 38.

Due to the scissor system 24, 25, the gate can be used for the transport flow and as an external gate without problems up to a maximum wind load of 15 m / sec.

The webs 6, 7 of the door leaf consist of fabric material on two in a row lying winding shafts is rolled up. At eye level, a window has 40 visible strips of approx. 500 mm.

A spring shaft 18, which is non-positively connected to the winding shafts 4, 5 by toothed belts 20, compensates for the weight of the rolled-out webs, as well as the scissor cross system 24, 25 and the lower crossbeam 8. There is a translation here so that the spring shaft 18 has only one revolution at 1 m stroke of the gate and therefore has a very long service life. The drive takes place directly without translation on the spring shaft 18. The side guides 9, 10 consist of galvanized sheets and spherical fabric tubes arranged on both sides thereof as

Sealing beads 11, 12, 13, 14, which seal the sides.

The door is always supplied with a frame made of rectangular tube and only attached to it during assembly. Shorter assembly times are possible because the door is manufactured entirely in the factory and undergoes a test run.

The curtain with a scissor cross system is pressed out of the guide rail 9, 10 if it starts up accidentally and can be manually brought back into the guide.

A 0.25 kW gear motor with frequency converter is provided for smooth entry into the end positions.

The opening and closing speeds are freely programmable at 1.30 m / sec. A contact strip on the lower crossbar 8 is used for safe shutdown.

In the event of a power failure, the gate can be opened by manually releasing a brake. The gate opens up to eye level through self-opening.

Reference list

1 gate 22 bearing plate

2 Building opening 23 upper fixed crossbeam

3 Traffic area 24 upper scissor cross

4 winding shaft 25 lower scissor cross

5 winding shaft 26 rod

6 lane 27 rod

7 lane 28 bar

8 lower 29 rod movable 30 joint

Crossbar 31 joint

9 Guide 32 crossing point

10 Guide 33 crossing point

11 sealing beads 34 joint

12 sealing beads 35 feet

13 sealing beads 36 guidance

14 sealing beads 37 joint

15 engine 38 base

16 Belt drive 39 Guide

17 timing belts 40 viewing window

18 spring shaft

19 belt drive

20 timing belts

21 bearing plate

Claims

Patent claims

1. Device for closing building openings, in particular roller door, i consisting of at least one rollable

Web (2) that can be rolled up on a winding shaft, so that a scissor linkage (8) is arranged between the winding shaft and the end of the web that delimits the building opening ιo.

2. Device according to claim 2, d a d u r c h g e k e n n z e i c h n e t that the scissors linkage (8) between two web layers ls (6, 7) is arranged.

3. Apparatus according to claim 1 or 2, d a ¬ d u r c h g e k e n n z e i c h n e t that two tracks (6, 7) with two separate winding shafts (4, 5) are provided.

Vorrichtung 4. Device according to claim 1, 2 or 3, d a ¬ d u r c h g e k e n n z e i c h n e t that the winding direction of both tracks (6, 7) is the same.

5. The device according to claim 1, 2, 3 or 4,

25 d a d u r c h g e k e n n z e i c h n e t that the winding shaft is arranged vertically.

6. The device according to claim 1, 2, 3, 4, or 5, d a d u r c h g e k e n n z e i c h n e t,

M that it has a mounting frame that can be mounted on one side in front of the building opening (2), in particular can be suspended.

7. The device according to claim 1, 2, 3, 4, 5 or 6 d a d u r c h g e k e n n -

5 z e i c h n e t that the scissor linkage (26 - 29) has load weights.

8. The device according to claim 1, 2, 3, 4, 5, 6, or 7, d a d u r c h g e k e n n ¬ z e i c h n e t that a ιo scissor linkage (26 - 29) engaging linear drive is provided.

9. The device according to claim 1, 2, 3, 4, 5, 6, 7 or 8, d a d u r c h g e k e n n ¬ z e i c h n e t that a spring shaft (18) acting on the i5 winding shaft (4, 5) is provided.

10. The device as claimed in one or more of the preceding claims, that a spring engaging the scissors system (24, 25) is provided.

11. The device as claimed in one or more of the preceding claims, that two separate spring shafts (18a, 18b) are positively connected to opposite shaft ends of the winding shafts.