ES1287921U - Guide for elevators/descents with reduced speed (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Guide for elevators/descenders with reduced speed, of the type of destined to be fixed to a fixed marination, such as the wall of the passenger compartment or hole in which the elevator moves, characterized in that it consists of a profile obtained in hardened aluminum, polymeric or metallic ceramic material, which adopts a configuration in "Y", with an average branch (2) constitutive of the guide itself, opening said branch (2) in a divergent branch couple (3-3') than by Its free edge suffers a layer, defining bushouts (4-4'), with the particularity that the divergent branches (3-3') determine a tubular core of triangular section (5) abroad in opposition to the middle branch (2), defining an embouchure (6) at the level of the coplanaries (4-4'). (Machine-translation by Google Translate, not legally binding)

Description

DESCRIPTION

Guide for lifts/descenders with reduced speed

TECHNICAL SECTOR

The present invention refers to a new fully optimized guide profile for low-speed elevators/descenders, that is, to a totally innovative and improved profile to give the greatest mechanical performance at the lowest possible weight applied to low-speed elevators/descenders, fruit of the use and experience of previous guides.

The object of the invention is to achieve a guide that meets all the features required by current legal regulations and that has the following requirements:

• Environmental: The profile is optimized to obtain a guide with the minimum mass per unit of length required, with the consequent material savings, lower global energy consumption required, and consequent reduction in CO2 emissions for its production.

• Economic: Optimized guide of low weight and price.

• Ease of handling, transport, storage and assembly: It is a low-weight guide that will allow greater ease of transport, storage and handling. The assembly process is also improved, facilitating the work of the workers.

• Design: We optimized the guide profiles above for a specific type of installation.

• Greater ease of machining as it is obtained in extruded aluminium, which allows the supply of the guide in sections of different lengths.

• Does not require lubrication, as it is made from extruded aluminium, a material that by its very nature has the particularity that the exposed area tends to rust and create an easy-to-slide surface.

As for the field of practical application of the invention, the proposed guide is preferably intended for payloads between 100 and 630 kilograms, without ruling out other ranges.

BACKGROUND OF THE INVENTION

For the movement of the elevator cars, a pair of vertical and parallel guides are used, spaced in correspondence with the width of said car and suitably secured to a fixed structure, such as the walls of the elevator shaft, for example.

To date, the aforementioned guides for elevators materialize in a steel profile, fragmented into sections of specific length, generally 5 meters, with a "T" section, so that through its transverse branch the profile is fixed to the wall. or wall in question.

The manufacturing process of these guides is extraordinarily slow and costly, since it first requires a steel production phase in blast furnaces, a second phase of hot rolling of the guide, by means of a rolling train, and a rolling phase of the cold guide, with its corresponding rolling mills, which means a very significant increase in the cost of the guide in question and energy consumption.

On the other hand, the aforementioned 5-meter sections, commonly used in the lift industry, entail a weight of around 35 kilograms for each guide section, which makes handling and assembly very difficult.

In this sense, it is noteworthy that the maximum weight handled by an operator according to assembly standards is 25 kg.

EXPLANATION OF THE INVENTION

The guide that the invention proposes has been conceived and structured in order to solve the problems previously exposed in the different aspects mentioned, reducing its manufacturing cost very considerably and also facilitating its assembly very considerably, always attending to the optimization of the profile according to its application in low speed elevators/descenders.

To do this and more specifically, the guide that is recommended starts from the use of a raw material totally different from steel, preferably hardened aluminium, although it can be another appropriate material of a ceramic, polymeric or metallic type.

Based on this raw material, the profile adopts a "Y" section, with its symmetrical branches bent coplanarly and moving away from the plane of symmetry, defining a hollow core tending to the isosceles triangle, but open through the middle of its base, specifically open in opposition to its middle branch, in which there is the area on which the elevator/descender vehicle will slide.

These coplanar elbows of the lateral branches of the profile allow the fixing of the guide to the wall with the possibility of positional adjustment, specifically placing the fixing screws in slots or oblong holes in an oblique arrangement, so that using two angles as means of fixing- bridge between the constitutive profile of the guide and the wall, said profile can be perfectly adjusted, quickly and easily, to achieve perfect verticality, both laterally and antero-posteriorly.

In this way, a guide with great mechanical resistance, high degree of elasticity, high allowable stress is achieved, defining as such the maximum stress that the material can withstand at any point, low density, low value of the buckling coefficient of the material, high value of the minimum turning radius of the profile and low coefficient of friction of the sliding faces against a plastic or similar material, avoiding the periodic greasing, usually monthly, so costly and cumbersome, which must be done with the steel guides, all with the adequate moments of inertia and resistance, great ease of manufacture, a drastic reduction in weight, and other advantages have already been listed in the present description.

BRIEF DESCRIPTION OF THE DRAWINGS

To complement the description that is going to be made below and in order to help a better understanding of the characteristics of the invention, according to a preferred example of its practical embodiment, a set of plans is attached as an integral part of said description. where, by way of illustration and not limitation, the following has been represented:

Figure 1.- Shows a sectional detail of a guide for elevators made according to the object of the present invention.

Figure 2.- Shows a profile view of the guide of the previous figure fixed to the wall of the building by means of two elongated supports.

Figure 3.- Shows, finally, a side elevation view of the assembly shown in figure 2.

PREFERRED EMBODIMENT OF THE INVENTION

In view of the figures outlined and especially of figure 1, it can be seen how the recommended guide consists of a profile (1), preferably aluminum, which adopts a pronounced "Y" section, based on a branch The middle branch (2) is thicker and through which it is guided to the cabin, said middle branch (2) forking into a pair of divergent branches (3-3') and symmetrical, which finally suffer a pronounced bending to finish off in coplanar sections (4-4'), and which move away from the middle branch. The divergent branches (3-3') are determinants of a tubular nucleus of triangular section (5), communicated to the outside through an opening or mouth (6 ), central and opposite to the middle branch (2) constituting the guide itself.

As can be seen in figures 2 and 3, the fixing of the profile (1) to the wall (7) is carried out with the collaboration of a pair of angular profiles (8), so that one of these angular profiles (8) is fixed to the guide (1) with the collaboration of a screw-nut assembly (9) and the complementary washers, said screws being through slots (14-14') provided in the profile (1), fixing both angular profiles (8) by means of a second screw-nut assembly (10) perpendicular to the previous one and also assisted by the corresponding washers, fixing the second angular profile (8) to the wall (7) through a third screw (11) that threads into a plug (12) previously implanted in the hole operatively made in the wall (7). These angular profiles (8) or union squares incorporate elongated and oblique holes (13), which allow a wide positional regulation for them, prior to tightening said screws, thus facilitating a perfect verticality of the guide (1), regardless of any irregularity that may exist in the surface of the wall or wall (7).

Claims (2)

1a.- Guide for elevators/descenders with reduced speed, of the type intended to be fixed to a fixed wall, such as the wall of the passenger compartment or shaft in which the elevator moves, characterized in that it consists of a profile made of aluminum hardened, polymeric or metallic ceramic material, which adopts a "Y" configuration, with a middle branch (2) constituting the guide itself, said branch (2) opening into a pair of divergent branches (3-3') that along its free edge it bends, defining coplanar sections (4-4'), with the particularity that the divergent branches (3 3') determine a tubular nucleus with a triangular section (5) open to the outside in opposition to the middle branch (2), defining a mouth (6) at the level of the coplanar sections (4-4'). 2a.- Guide for lifts/descenders with reduced speed, according to claim 1, characterized in that it is complemented by fixing means to the wall in question, materialized in two angle brackets or profiles (8), opposite each other, which are fixed to each other by means of screw-nut assemblies (9-10), one of which is fixed in turn by means of two screw-nut assemblies (9) to the constituting profile of the guide through slots (14 14') provided in the coplanar sections (4-4') of said guide, while the other profile is fixed to the wall with the collaboration of two screws and two plugs (12) previously implanted in said wall (7), incorporating the angular profiles (8) holes torn and oblique (13), determining means of positional regulation of the support elements.