DE1058875B - Up-and-over door to open - Google Patents

Description

FEDERAL REPUBLIC OF GERMANY

GERMAN

PATENT OFFICE

PATENT LETTER 1 058

REGISTRATION DAY:

NOTICE
THE REGISTRATION
AND ISSUE OF
EXTENSION CHRIFT:

ISSUE OF
PATENT LETTERING:

DBP 1058875 kl. 684 18

INTERNAT. KL. E 05 d 13 JULY 19 5 5

JUNE 4, 1959 NOVEMBER 12, 1959

agrees with the exposition

1 058 875 (SA 18328 V / 68 d)

, The invention relates to an overhead door to open and relates to the training of the Door fitting with a door leaf, which in the lower part in a vertical rail and in the upper part lengthways a horizontal rail running in the direction of the interior space.

Overhead doors, especially garage doors that can be opened overhead, come in a wide variety Executions known. The door leaf that can be opened overhead can be counterbalanced on the one hand along vertical guardrails and on the other hand extending from the door leaf level into the room Slideways are shifted. The weight compensation is often done with the help of a Counterweight, which is guided over rollers by means of a rope and engages the door leaf. The order is made in already known up-and-over doors of this type that the door leaf after moving protrudes from the top of the door leaf level to the front. So that the gate is always in equilibrium, the door leaf is suspended, d. H. the point of application of the rope with the. Counterweight, at the height of the center of gravity of the door leaf area.

In the case of rail guides for the door leaf, where. the lower edge of the door leaf above the level of the perpendicularly standing gate does not protrude, you get a suspension device when the door leaf is suspended in the center of gravity plane, the pulleys in the must be arranged at a large distance from the perpendicular position of the gate. This is the case in many cases undesirable. In this case, a suspension outside the center of gravity is preferred. That I but here the load of the door leaf weight to be compensated changes continuously during the opening movement, have been used as a replacement for the constant balance weight springs, which ensure that '' the door leaf is in equilibrium in every position and does not suddenly go up or slam can. In the case of springs, such compensation does not present any difficulty, since the spring force depends on the load can be set and either during the movement of the door leaf depending on the arrangement rises or falls. -

The invention now has a device for counterbalancing up-and-over doors using a constant counterweight to the object, the rope of the counterweight on the door leaf can attack outside the center of gravity. It is characterized by the fact that the rope run of the rope loaded by the counterweight from the point of application in the lower half of the door leaf from the vertical guide deviating in a running in the interior, known per se oblique direction and that this

IO up-and-over door to open

Patented for:

Schweto, sliding gates, sliding windows

Gustav Ziehl, Rodenkirchen / Rhine

Otto Bosse, Rodenkirchen / Rhein, has been named as the inventor

Rope run in the vertical position with the door leaf open has exceeded something in the other direction. Due to the incline of the on the 'door leaf attacking rope strand ^ is achieved that, although the counterweight is initially overweight, the

a5 effective force component always the counterweight almost corresponds. The incline of the attacking rope strand changes continuously. Through this At an angle, a horizontal force component sets in, which controls the movement of the door leaf in the Supported space in opening. At the end of the opening movement, the If the rope runs beyond the vertical, a slight brake in the other direction.

Drives for up-and-over doors are already known in which at least one pulling element is used to open and close serves, which is wound or unwound on a cable drum driven by an electric motor. Apart from the fact that with these drives the overhead door swings strongly forwards when it is opened, that is is not guided in a vertical rail with the lower edge of the sheet, it is with a motor drive no matter how the loads to be lifted change. The electric motor with the intermediary In any case, worm gear is so strong that it can pull up and hold the door leaf. The problem according to the invention does not arise here. The same is already the case with another known type of overhead door is the case in which the rope strand runs parallel to the guide and

is inclined. The point of application of the rope strand and the bearing point of the door leaf fall in the guide practically together. You cannot achieve a balanced movement of a door leaf with this, the one with the lower end in the final level

'909 643/69

remains and should be opened and closed in a balanced manner.

The inclined guidance of the rope strand can be made adjustable according to a further feature of the invention by changing the distance between the pulleys leading the rope run from the level of the perpendicular door leaf. It is advantageous if the inclined rope run in the Closed position of the door leaf on a section up to about the middle height of the door leaf in itself is performed in a known manner parallel to the Törblatt.

An exemplary embodiment of the subject matter of the invention is illustrated in the drawing.

1 to 3 show a side view of the device, according to the invention, wherein in Fig. 1 the door leaf is perpendicular and in Fig. 3 completely is open, d. H. lies horizontally, while an intermediate position is shown in FIG. 2;

Fig. 4 illustrates a view of the door leaf, seen from the interior.

In the illustrated embodiment, the door leaf 1 is at 2 by means of a roller or the like. In a horizontal rail 3 leading into the room. The lower end of the door leaf 1 is mounted in a vertically extending rail 4 by means of a roller 5. At a point 6 between the bearings 2 and 5, the rope 7 engages the door leaf 1. The balance weight 8 hangs at the other end of the cable. The cable can run over one or more cable pulleys 9 and 10, which are mounted above the rail 3. From the pulley 10, the rope strand 7 α leads in an oblique direction to the point of application 6 of the door leaf 1. In this case, the rope strand 7 α exerts a horizontal force component on the door leaf 1. When the door leaf 1 goes up, the roller 2 runs in the horizontal rail 3, while the roller 5 slides in the vertical rail 4. The door leaf 1 tilts backwards and reaches the horizontal position of FIG. 3 when it is fully open. Here, the inclined course of the rope strand 7a changes. The angle that the cable strand Ta occupies to the perpendicular, is more and more acute, has until the strand Ta in the open position of the door leaf, that is, reaches the perpendicular just before or in the horizontal position of the door leaf. The arrangement can also be made so that in the fully open position of the door leaf 1, ie in its horizontal position, the rope strand Ta extends obliquely beyond the perpendicular to the other side. Since the upper roller 2 is increasingly loaded with the weight of the door leaf as the opening position of the door leaf 1 increases, the door leaf load to be compensated is lower at the rope attack spuiikt 6. Due to the inclined guidance of the inclined strand Ta , this decreasing load can be approximately taken into account with a constant balance weight 8, so that the door leaf 1 stops in every open position and does not move up or down unintentionally. By exceeding the inclined position of the rope strand Ta beyond the perpendicular, the movement of the door leaf 1 to the rear is braked shortly before it is fully opened, since the horizontal force component then acts forwards. .-, · '. : The distance of the pulley 10 from the plane of the perpendicular door leaf can be made variable, so depending on the local conditions. nissen and, depending on the weight of the door leaf, the ■ starting slope of the rope strand Ta is set slightly

ίο can be.

A longitudinal slot or several bores can be provided in the holder for adjustment. In order to ensure that when the door leaf is perpendicular, a stronger pull in the opening direction on the door leaf than is given by the incline of the run Ta , a bracket 11 can be provided on the door leaf, behind which the run Ta is guided. The bracket 11 can be arranged displaceably in height. In Fig. 1, the then existing course of the run Ta is illustrated in dashed lines.

Instead of laying the guide rail 3 horizontally, it can also be inclined upwards in a suitable manner be directed. This can be provided in such rooms where the height of the room is greater than the clear height under the lintel.

Claims (3)

Patent claims: 1. Overhead door to open upwards, the door leaf of which is guided in the lower part in a vertical rail and in the upper part along a horizontal rail running in the direction of the interior, using a counterweight to relieve the door leaf, characterized in that the rope run (7a) of the rope (T ) loaded by the counterweight (8) from the point of application (6) in the lower half of the door leaf (1) from the vertical guide (4) of the door leaf (1), deviating into the interior running, known inclined direction is performed and that the rope strand (Ta) has slightly exceeded the perpendicular position in the other direction when the gate is open. 2. Kipp gate according to claim 1, characterized in that the inclined guide of the rope run (7a) is adjustable, namely by changing the distance between the rope run (Ta) leading pulleys (10) from the plane of the perpendicular door leaf (1). 3. Overhead door according to claims 1 and 2, characterized in that the inclined rope strand (Ta) in the closed position of the door leaf (1) on a section up to about the middle height of the door leaf (1) in a known manner parallel to the door leaf ( 1) is performed. Considered publications:
German patent specifications No. 857 914, 894 667. 1 sheet of drawings