DE10102140A1 - Door system for chilled transport vehicle has door panels supported from an overhead rail to open for loading - Google Patents

Abstract

A door system for a chilled transport vehicle has the door panels hung from an overhead support and driven by a servo motor to open and close for the transfer of goods. The door panels can be slid aside or can be swung open for access to the chilled container. The servo drives for both sides of the door are synchronised.

Description

The invention relates to a retaining wall device, in particular for insulated ones Transport containers and refrigerated vehicles. Refrigerated vehicles are known at which in the interior of a refrigerated goods storage room transversely to the direction of travel arranged oscillating strips, are provided to those in such Transport containers with cool air when loading or unloading to prevent it from escaping and thus heating the refrigerated goods receiving space as well as to avoid the goods to be transported.

However, these conventional cold retention devices are particularly useful Problems when loading and unloading the refrigerator.

The invention has for its object a cold retention device for to create a refrigerated goods room through which during loading and Unloading a good accessibility to the appropriate refrigerated goods given is.

This object is achieved by a retaining wall device solved the features specified in claim 1.

This advantageously makes it possible with a high sealing effect the refrigerated goods storage room loaded with refrigerated goods from the surroundings cut off. An impermissibly high exchange in the refrigerated goods storage room located cooled air with the ambient air is thereby advantageous Avoided way. Damage is also particularly advantageous of the refrigerated goods as they are especially for the top ones on a pallet existing goods in the conventional systems is avoided. In addition, the loading and unloading process can be carried out much faster, so that a significantly reduced heat input in the  Refrigerated goods room is guaranteed. Also the energy supply of a corresponding one The refrigerant system is reduced.

According to a particularly preferred embodiment of the invention Device provided by which an opening or closing the Cold retention wall in combination with an actuation in particular Change of position of a tail lift of a corresponding refrigerated vehicle he follows.

The drive can be driven by mechanical coupling links via the drive Tail lift or comparable z. B. hydraulic loading aid. It is possible a wall opening or wall closing force via a spring device to create.

According to a particularly preferred embodiment of the invention, a independent power drive provided. It is possible to use electrical to use hydraulic and / or pneumatic drive elements.

Further advantageous embodiments of the invention are the subject of Subclaims.

Further details and features of the invention emerge from the following description in connection with the drawing. Show it:

Fig. 1 is a simplified view of a cold retaining wall according to the invention in the closed position with a shifted right wing and a wall illustrated here only schematically, to an open position shifted left wall wings;

FIG. 2 shows a simplified sectional view through a running rail as can be used, for example, in the embodiment according to FIG. 1;

Figure 3 is a simplified view of an arrangement of carriage, guide tube and driver, for moving the individual wall elements in an open or closed position.

Fig. 4 is a plan view of a cold retaining wall - here in an open position;

Figure 5 is a plan view of a cold retaining wall - here in a closed position.

Fig. 6 is a side view of a guide rail arrangement for horizontal guidance of the wall elements;

Fig. 7 is a schematic diagram for illustrating the functional coupling of the movement components of the guide means of the cold retaining wall;

Fig. 8 is a schematic diagram to illustrate the functional coupling of a tail lift with a cold retaining wall.

The cold retention wall shown in FIG. 1 comprises four wing elements 1 , 2 which are made here from a thick-walled film material and preferably have a thickness in the range from 1 to 4 mm.

The wing elements have an essentially rectangular shape and are provided with cross members 3 , 4 in the region of their upper transverse edge. The cross members 3 , 4 are coupled to one another via a coupling device 5 . The coupling device is formed here by an articulated device.

The wing elements 1 , 2 are connected to one another in the region of their adjacent vertical side edges with a flexible strip material.

In the area of the cross members 3 , 4 , a running rail a is provided, as can be seen in more detail in FIG. 2.

Each wall element can be moved by means of a device provided for this purpose can, that is, the user no longer cumbersome or must move.

The cooling curtain thus formed consists of two gate leaves that open when opened move outwards and fold together using a joint can. The attached to the hinged gate wings and down hanging plates or foils follow these movements and achieve that desired effect. The gate construction is designed so that the two outer elements attached to the side wall only a small overall height exhibit. This allows the goods to be transported, below, when maneuvering be pushed through without bumping against the construction and Causing damage. They are preferably two each above Hinges held. The sheets or foils hanging from it become pulled down by means of an elastic band.

The two inner elements are attached at one end to the outer gate wing by means of a hinge, at the other end they are attached to a carriage running in the running track by means of a rotatable connection 1 . This has the task of performing a support function on the one hand, and on the other hand it is driven by a specific drive system and thus enables movement.

This carriage is designed so that the drive system by means of a Driver opens through a pipe bushing. Appropriate mechanics in the form of a trap or similar blocks the driver and thereby comes Adhesion. In the event of an undesired movement of the curtain or this mechanism can be overridden for emergency release. This drive system can either consist of a cable, a V-belt or Flat belt drive exist. It becomes, for example, at A of the lowering loading aid in such a way that the cold retention system moves  includes - and when lifting the loading aid by means of a spring force Reset effect, including opening the cold retention system again becomes.

In case B, the opening and closing is carried out by a power drive.

The power transmission is achieved by means of pulleys in such a way that a synchronous movement of the gate leaves occurs. The outside pulleys can standing or lying down.

The drive system used under point A, which is spring-loaded resets, either from a spring shaft or a winding mechanism consist. The sketch shows an example with a spring shaft, b, on which one Rope, d, wound up directly. Due to the opposite arrangement of the Ropes result in equally fast rope speeds. One in the pipe located spring mechanism enables resetting and thus again Open the system. A rope attached to the loading aid, g, works Deflection pulleys, c, in the way on the drive that there is a winding of the spring as well as closing the curtain.

The system used under point B either has an additional one Power drive that only works in one direction of movement, or it is omitted Reset mechanism of the spring, which is supplemented by a power drive two directions of movement. This can either indirectly on the drive shaft or act directly on the drive mechanics.

The solution according to the invention makes loading and unloading operations possible faster, with less energy loss, and therefore more efficient too Do it. It also serves to close the refrigerated goods before they are heated protect and thus minimize the loss of quality.

Claims (9)

1. Retaining wall device for a refrigerated goods room with at least a first and a second wall element ( 1 , 2 ) that can be brought into a closed position or into an open position, characterized by a guide device that extends in the upper region of the wall elements in the horizontal direction in the direction of a wall closing plane , wherein at least two adjacent wall elements are coupled to one another and are pivotally suspended on the guide device. 2. retaining wall device according to claim 1, characterized in that the Wall elements formed from a thin plate or a sheet material are. 3. retaining wall device according to claim 1 or 2, characterized in that a drive device is provided for pivoting the wall elements in an open or closed position. 4. retaining wall device according to at least one of claims 1 to 3, characterized in that at least two adjacent to each other Wall elements via an elastic coupling device in the area of their adjacent side edges are interconnected. 5. retaining wall device according to at least one of claims 1 to 4, characterized in that the guide means by a Rail element is formed, and that the rail element one in has a substantially U-shaped cross section and a roller assembly in the rail element is included. 6. retaining wall device according to at least one of claims 1 to 5, characterized in that a coupling device is provided for Coupling an opening or closing movement of the wall elements with a  Tail lift in such a way that the wall elements in when the drop side Close position and in an open position with the drop side raised. 7. retaining wall device according to at least one of claims 1 to 6, characterized in that a cable pull mechanism is provided for kinematic coupling of the wall elements. 8. retaining wall device according to at least one of claims 1 to 5, characterized in that the wall elements in the area of their upper Cross edge are provided with cross members, and that the cross member hinge-like are coupled together. 9. Refrigerated vehicle with a retaining wall device according to at least one of the Claims 1 to 8.