DE29719623U1 - Gate arrangement for air-conditioned areas - Google Patents

Description

Gate arrangement for air-conditioned areas

The present invention relates to a gate arrangement for closing the openings of air-conditioned areas, in particular for cold storage cells.

When closing air-conditioned areas, especially when they are larger, i.e. cold storage rooms, large refrigerated containers, but also cabinet-type cooling units, it is important on the one hand to ensure a closure that enables the creation and maintenance of a stable climate inside the area with reasonable energy expenditure, and on the other hand the opening area must be as open and accessible as possible. Roller doors or sectional doors are often used. In one case, a door made of slats is rolled up like a jalousie, which requires a large drive and a large receiving area, i.e. a lot of space. In the case of sectional doors or the use of conventional revolving doors, the area in front of the cell must be large and allow for swinging out. Since goods are often brought into and taken out of the air-conditioned area, this requirement for a free swing area represents an additional difficulty.

Finally, a good seal of the closure is essential and desirable. This is often a problem with wide-opening gates, which can only be solved with locking mechanisms that apply additional mechanical forces.

Based on the described prior art, the present invention is based on the object of providing a door arrangement for the

Closure of the openings of air-conditioned areas, in particular cold storage cells, which requires only a small amount of space inside or outside the cell, ensures easy handling and good sealing.

To achieve this objective, the invention proposes a door arrangement for closing the openings of air-conditioned areas, in particular of cold storage cells, consisting of a door surface covering the opening and divided essentially horizontally into at least two surface elements that are pivotably connected to one another in the installed position, the upper surface element in the installed position being pivotably arranged on an upper limiting element of the opening.

The door arrangement according to the invention thus makes it possible for the at least two surface elements, which are connected to one another in a pivotable manner, to be folded up outwards in relation to the cold storage cell or the air-conditioned area, with the lower end of the lower surface element approaching the upper end of the upper surface element, so that the two surface elements lie almost horizontally on top of one another, pointing outwards when opened.

The main advantage of this solution according to the invention is the space saving inside and outside the cell compared to conventional sectional or roller doors, as well as to normal revolving doors. The space required above the cell is very small compared to roller doors. In relation to sectional doors or revolving doors, the space required is negligible, especially in the pivoting area. In addition, the door arrangement according to the invention is very easy to handle and, finally, the special type of closure means that seals can be pressed on very easily to create a good seal.

Advantageously, the surface elements are aluminum sheets with an insulating material filling, whereby a PU foam filling is preferably proposed as the insulating material.

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The at least two panels are preferably connected to one another by hinges, which allow the lower panel to be folded onto the upper panel. Instead of hinges, other elements that ensure pivotability can also be used. The panels can be profiled or provided with seals in the area of the dividing plane to achieve a climate-stable closure.

If more than two panels are used, they can be arranged so that they can be folded together in alternating directions. If the panels are thick enough, the pivot axis is arranged on the side of the panels facing the cold storage cell.

The gate arrangement advantageously has a locking mechanism, in a particularly advantageous manner a bar latch lock, which is preferably arranged on the upper panel. Since when closing, the seals in particular pre-tension the panels into a minimally bent state, the locking of the upper panel ensures that the seals are finally pressed firmly against one another.

Advantageously, a handle or grip element is arranged on the outside of the gate arrangement. This is arranged and designed in such a way that it enables the gate arrangement to be easily folded up and is also easy to grasp for closing. Additional grip elements arranged on the lower edge of the lower panel can also be advantageous for closing.

According to an advantageous proposal of the invention, at least the lower surface element is guided in the area of its lower edge in lateral guides, according to an advantageous proposal by means of rollers. This arrangement provides secure guidance on the one hand, and on the other hand the open and closed end positions are fixed.

The door arrangement according to the invention is advantageously provided with a drive for opening. According to an advantageous proposal, a spring shaft is arranged in the area above the upper panel or surface element, the spring force of which is transmitted by means of cables to the lower edge of the lower

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surface element. When opening, the spring pulls the lower edge of the lower panel upwards and the gate opens. When closing, the spring is tensioned again. The lower panel is subjected to a moment by the cable attachment point in front, which forces the panel towards the stop or sealing surface. A spring break protection device secures the gate assembly against falling down if the spring is damaged.

It is particularly advantageous with the invention that a seal is arranged in the area of the lower edge of the lower panel, projecting beyond the lower edge. This arrangement has the advantage that when the door arrangement according to the invention is closed, the seal runs towards the lower frame element or floor in the opening area of the cold storage cell and is pressed on to form a good seal when the door arrangement is finally closed.

In the area of the remaining edges, internal seals can be applied to the panels, which are pressed onto the frame elements.

When using a seal pressed on in the floor area, the height of the door leaf formed by the panels required to close the chamber is supplemented by at least part of the seal, so that a good pressing on of the seal is guaranteed.

The invention provides a simply constructed, space-saving and easy-to-handle gate arrangement which ensures simple and good sealing. The use of only a few and essentially insensitive elements enables an economical construction of the gate arrangement according to the invention.

Further advantages and features of the invention emerge from the following description based on the figures. They show:

Figure 1 is a plan view of an embodiment of a locked gate arrangement and

Figure 2 is a sectional side view of the gate arrangement according to Figure 1.

Figure 1 shows a front view of an embodiment of a gate and Figure 2 shows a side view in partial section along the line U-II according to Figure 1. In the figures, identical elements are provided with identical reference symbols.

The gate 1 consists of an upper panel 2 and a lower panel 3, which are pivotably connected along the hinge line 4 with several hinges. A bar latch lock 5 in the lower area of the upper panel 2 enables the gate to be locked in a completely closed, i.e. stretched, state. The panels are elements with aluminum sheet paneling and preferably a PU foam filling. A handle 6 is arranged on the lower edge of the upper panel 2, which enables easy opening and closing. In the embodiment shown, a spring shaft 8 is arranged on a cross member 7 arranged in the area of the front edge on the cold room toe, which has a spring 9 and conical pulleys 10, 11. Wire ropes 12, 13 are moved via the pulleys, the free ends of which are arranged on the lower edge of the lower panel 3. If the bar latch lock 5 is opened and if necessary the handle 6 is pulled, the door is folded up, whereby the upper panel 2 is pivoted up about the pivot axis 18 and the lower panel 3 is brought closer to the upper panel about the hinge line 4, so that the two panels 2, 3 lie almost horizontally on top of each other in the open state, pointing outside the cold storage rooms.

In the area of the lower edge of the lower panel 3, a lower seal 14 is arranged, which is pressed onto the floor 16 when the door is closed. The sides of the lower edge of the lower panel 3 are preferably provided with rollers (not shown) that run in system guides attached to the cold room wall and are arranged in the area of the cold room cell side wall. Seals can be arranged in the area of the front edges of the walls 17 of the cold room ceiling, the ceiling 15 inside the panels 2, 3.

List of reference symbols

1 Goal 2 upper panel 3 lower panel 4 Hinge line 5 Bar latch lock 6 Handle 7 traverse 8th Spring shaft 9 Feather 10 Pulley 11 Pulley 12 Rope 13 Rope 14 lower seal 15 Ceiling 16 Floor 17 Wall 18 Swivel axis

Claims (14)

Expectations 1. Gate arrangement for closing the openings of air-conditioned areas, in particular cold storage cells, consisting of a gate surface covering the opening and divided essentially horizontally into at least two surface elements that are pivotably connected to one another in the installed position, the upper surface element in the installed position being pivotably arranged on an upper limiting element of the opening. 2. Gate arrangement according to claim 1, characterized in that the surface elements are aluminum-coated panels with an insulating material filling. 3. Gate arrangement according to claim 2, characterized in that the insulating material filling is a PU foam filling. 4. Gate arrangement according to one of the preceding claims, characterized in that the surface elements are connected to one another by hinges. 5. Gate arrangement according to one of the preceding claims, characterized in that it has a locking mechanism. 6. Gate arrangement according to claim 5, characterized in that the lock is formed by a bar lock. 7. Gate arrangement according to one of the preceding claims, characterized in that at least one handle element is arranged on the outside of one of the surface elements. 8. Gate arrangement according to one of the preceding claims, characterized in that at least the lower surface element is guided in side guides in the region of its lower edge. ♦ » KIl • · e > 9. Gate arrangement according to claim 8, characterized in that rollers are arranged on the lower edge of the lower surface element for the purpose of lateral guidance. 10. Gate arrangement according to one of the preceding claims, characterized in that it is provided with a drive. 11. Gate arrangement according to claim 10, characterized in that the drive is formed by a spring shaft with spring transmission elements. 12. Gate arrangement according to claim 11, characterized in that the spring shaft has a spring break protection device. 13. Gate arrangement according to one of the preceding claims, characterized in that seals are arranged on the panels. 14. Gate arrangement according to claim 13, characterized in that in the area of the lower edge of the lower panel a seal projecting beyond the lower edge is arranged.