RU2488676C2 - Gates - Google Patents

Abstract

FIELD: transport.

SUBSTANCE: gates comprises board jointed with elements arranged in guides. Said elements can get out of guide bottom parts to prevent board destruction at unauthorised external forces and in guide top parts in board folding. Guide bottom parts are stationary elements while top parts of said guides lift when said elements get therein.

EFFECT: higher reliability.

3 cl

Description

The invention relates to automatic roll-up high-speed gates designed for facilities that use various types of transport and handling devices.

Known are gates containing a web connected to guiding elements arranged to exit from the lower parts of the guides in order to prevent the web from breaking when exposed to an external unauthorized force and automatically entering the left elements in the upper parts of the guides in the process of folding the web (see www. antes.ru).

A disadvantage of the known device is the lack of reliability due to the possible failure of the elements associated with the canvas in the lower parts of the guides due to the presence of a constant gap between the upper and lower parts of the guides.

The technical result, to which the invention is directed, is to increase the reliability of the gate.

The specified technical result is achieved by the fact that in the gate containing the blade connected to located in the guide elements made with the possibility of exit from the lower parts of the guides to prevent destruction of the canvas when exposed to an external unauthorized effort of manual entry of the left elements in the upper parts of the guides during folding the web, the lower parts of the guides are fixed, and the upper parts of the guides are movable for their lifting during the approach lementov.

The movable and fixed parts of the rails can be elastically pressed against each other.

Elements connected to the web can be made in the form of volumetric parts with profiled surfaces on the side of the slit formed by the boundary walls of the guide.

The invention is illustrated by drawings.

Figure 1 schematically in two projections shows the gate in normal operation; figure 2 - the same in three projections after unauthorized exposure to the door leaf.

The gates comprise a web 1 connected to elements 2 located in guides consisting of lower fixed parts 3 and upper moving parts 4. The canvas 1 in the lower part has a bar. Elements 2 are made with profiled surfaces 5 from the side of the slit guides.

The gate works as follows.

During normal operation, the lower parts 3 and the upper parts 4 of the rails are in contact with each other due to the gravity of the moving parts 4 and the spring 6, which eliminates the formation of a gap between the parts of the rails during normal operation.

During the operation of the gate, a situation is possible when a vehicle, such as a loader, touches the lower part of the blade when it is wound, which leads to the tearing (exit) of the elements 2 from the lower parts 3 of the guides. The output of the elements 2 from the lower parts 3 of the guides prevents the destruction of the blade 1 when exposed to it (on the bar) of an external unauthorized force.

When some of the elements 2 leave the guides, the web winding process (gate opening process) does not stop, and the guides 2 coming out of the lower parts 3 automatically enter the upper guides 4.

The automatic entry of the guide elements 2 coming out of the lower parts 3 into the upper guide parts 4 in the process of folding the web is carried out by lifting the upper parts of the 4 guides by the released elements 2 and the formation of a gap between the lower 3 and upper 4 parts of the guides. After the call of all the torn elements 2 in the part 4 of the guides, the parts 4 are automatically lowered to contact the lower parts 3 due to the weight of the parts 4 and the action of the spring 6.

When closing the gate, the web 1 is unwound and the elements 2 from the upper parts 4 pass into the lower parts 3 of the guides, while additionally compressing the parts 4 to parts 3 due to friction between the elements 2 and parts 4.

Claims (3)

1. The gate containing the blade connected to located in the guiding elements made with the possibility of exit from the lower parts of the guides to prevent destruction of the canvas when exposed to external unauthorized forces and the automatic entry of the released elements into the upper parts of the guides in the process of folding the canvas, characterized in that the lower parts of the rails are fixed, and the upper parts of the rails are movable to lift them during the approach of the elements. 2. The gate according to claim 1, characterized in that the movable and fixed parts of the rails are elastically pressed against each other. 3. The gate according to claim 1 or 2, characterized in that the elements are made in the form of volumetric parts with profiled surfaces on the side of the slit formed by the boundary walls of the guide.

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