ES1058474U - Protection balustrade for building sites - Google Patents

Abstract

Guardrail for construction sites, particularly for the elevator shaft under construction, characterized in that it comprises a structure formed by vertical uprights (1) and horizontal stringers (2), which articulate with each other and in a vertical guide (5), fixed On the side of the hole to be protected, this joint allows to pass from a rectangular conformation at rest that prevents the passage, to another rhomboidal with the side opposite to the guide (5) raised upwards. (Machine-translation by Google Translate, not legally binding)

Description

Protection railing for works.

Object of the invention

The present invention, as its own title indicates refers to a railing designed to protect a hole, particularly that of the elevator while construction lasts, to avoid the eventual accidental fall of an operator by the same.

Background of the invention

Document ES-1052084 describes a guardrail for elevator shafts constituted by a structure of vertical bars delimited by corresponding upper and lower stringers that extend further beyond the structure of bars to reach a maximum length and at the ends of the upper crossbar, they have respective rows of through vertical holes, on one end and on the other end, aligned and equidistant in which an anchor is mounted clamp that is held by the inside of the wall to prevent the railing from falling inwards.

In EP-0512210, describes a protection device for mounting doors  elevators in the form of an adjustable railing that during the door assembly blocks access still open to the box to prevent the fall of people by said box, which includes, by at least, an articulated parallelogram containing a fixed support and a mobile support and two rotating bars arranged in parallel and  that allow the change of horizontal position of the railing towards the box and from the latter in a double amplitude of the separation between the pivot points of the bars swivel

As for railings for works there are multiple references in the state of the art, for example the Document ES-1055559 describes a railing removable multi-purpose removable, comprising some vertical mounting pillars by introduction of its ends bottoms inside a cap embedded within a mass of concrete, whose cap top ends in a cap as introduction stop.

Description of the invention

The labor accident rate in Spain It is very high and large number of accidents occur due to falls empty, either because of the lack of protection at the edges of the plants that still lack walls, or because of the gaps in the floors for subsequent elevator authorization or stairs.

The object of the present invention resolves favorably the problem of closing the elevator shaft while lasts its construction, providing for it a railing that has a structure formed by several horizontal stringers and vertical uprights, all articulated with each other and in a vertical guide that is fixed on one of the sides of the hole; from such that under operating conditions this railing forms a rectangle interposed in the hollow, but that when articulated is liable to transform into a rhomboid rising to Allow passage if necessary. It preferably has a tension spring, mechanical or pneumatic, which has the purpose of keep it in a raised position; said tension spring goes from the articulated side and fixed to the upper wall to the lower crossbar, keeping the railing once raised, transformed into a rhomboid, to facilitate this operation has on the crossbar bottom of a handle that facilitates its handling.

According to another feature of the present invention, each of the stringers that make up this railing they are divided by an intermediate point and both sides are overlap and join by a pin or similar means, presented for that in that area both parts a series of separate holes regularly.

Description of the figures

These and other features of this invention will be more readily understood with the description following carried out based on a practical embodiment; This description is based on the drawings in the attached drawing, in which:

Figure 1 shows an overview in perspective of the elements that make up this railing.

Figures 2 and 3 represent a closed hole with a railing of these characteristics respectively in position preventing the passage and elevated to facilitate it.

Preferred Embodiment of the Invention

The railing object of this model includes several vertical uprights (1) and horizontal stringers (2), in the example represented three stringers that are separated by sections two to two of uprights (1), all of them joined in solutions articulated and by one of the sides vertically a guide (5), also through an articulated solution, to allow transform the rectangle that make up at rest (see figure 2) in a rhomboid raised upwards (see figure 3), to facilitate The step below.

On the side where the guide (5) is placed interposes a tension spring (3) that goes from the upper end of the vertical upright (1) to the lower horizontal stringer (2), which Its mission is to keep the handrail in position represented in figure 3, once it has moved with the hand up to this position, for which purpose it has in the opposite end of the lower beam (2) of a handle (4) that It facilitates this operation. This tension spring can be replaced by a pneumatic spring or other similar element.

As shown in figure 1 each of the stringers (2) that make up this railing are divided by a intermediate point and both sides overlap and join by means of a pin (6) or similar means, presented for that purpose in that area both parts (21-22) a series of separate holes regularly.

It is not considered necessary to extend this description so that any subject matter expert understands the scope of the invention and the advantages thereof drift

The terms in which this text has been written memory should always be taken broadly and not limitative.

The materials, form and arrangement of elements will be subject to variation as long as it does not suppose an alteration of the essential characteristics of the invention, which are claimed below.

Claims (3)

1. Protection rail for works, particularly for the elevator shaft under construction, characterized in that it comprises a structure formed by vertical uprights (1) and horizontal stringers (2), which articulate with each other and in a vertical guide (5), fixed on the side of the hole to be protected, allowing this joint to pass from a rectangular conformation at rest that prevents the passage, to another rhomboid with the side opposite the guide (5) raised upwards. 2. Railing, according to the preceding claim, characterized in that it has a tensioning spring (3), or a similar element, that joins the upper area of the vertical upright (1) corresponding to the fixed guide (5) with an intermediate area of lower stringer (2), which maintains the raised or open position of the handrail once manually raised, for which purpose it has a handle (4) at the end of the lower crossbar (2). 3. Railing, according to the preceding claims, characterized in that each of the stringers (2) that make up this railing are divided by an intermediate point and both parts overlap and join by means of a pin (6) or similar means, presented for it in that zone both parts (21-22) a series of holes separated regularly.