ES2398801A1 - Support structure for moving stairs and corridors (Machine-translation by Google Translate, not legally binding) - Google Patents

Abstract

Support structure for moving stairs and corridors, comprising a mobile band composed of blades or flanges provided with rollers that support and slide on guides (2) defined on two side beams (1) between which is mounted a lower enclosure (3) of folded sheet comprising a central bottom (4) and two side walls (5) perpendicular to the bottom, which are attached and joined to the external surface (7) of the longitudinal members (1). (Machine-translation by Google Translate, not legally binding)

Description

Supporting structure for stairs and mobile corridors.

FIELD OF THE INVENTION

The present invention relates to a supporting structure for stairs and mobile corridors, composed of two lateral stringers and a lower enclosure of folded sheet, joined by its longitudinal edges to said stringers.

The structure of the invention is especially applicable to stairs and mobile corridors comprising a mobile band composed of pallets / rungs that are roller carriers, through which they support and slide on lateral guides.

BACKGROUND OF THE INVENTION

In ES 2322536 of the same applicants a supporting structure for transport systems of people and / or goods is described, comprising a mobile band of pallets / rungs provided at their ends of supporting rollers, two lateral stringers defining rolling surfaces for the support rollers of the vane / steps, and a central enclosure of folded sheet which is joined by its longitudinal edges to the lateral stringers.

The lower enclosure is of trapezoidal ribbed section and the walls are topped off in two external longitudinal flaps, which support and join on the lower surface of the lateral stringers.

This constitution requires four longitudinal fold lines to be made on the sheet from which the lower enclosure is formed, two lower lines, which delimit the bottom and separate said bottom from the walls, and two other upper fold lines, from which conform the external longitudinal flaps. The walls are divergent upwards and the external longitudinal flaps are preferably parallel to the bottom. With this configuration, the walls form different angles of 90º with the bottom and flaps.

On the other hand, the external longitudinal flaps are attached to the lower surface of the lateral stringers, to which they are attached, for example by rivets,

 So that the total rigidity of the assembly formed by the stringers and the lower enclosure is guaranteed.

DESCRIPTION OF THE INVENTION

The present invention has as its object a supporting structure for stairs and mobile corridors, of the type initially exposed, constituted so as to achieve a series of advantages, with respect to traditional structures for the same purpose.

The escalator or mobile aisle is composed of a series of pallets / steps that are provided with rollers through which they support and can slide along the supporting structure. This structure, meanwhile, is composed of two lateral stringers that define rolling surfaces, on which they support and can slide the rollers of the pallets / steps, during the movement of the aisle / staircase.

According to the invention, the folded sheet bottom enclosure comprises a central bottom and two lateral walls perpendicular to the bottom, defining a corrugated configuration of rectangular section, with right angles adjacent to the bottom.

The two walls of the lower enclosure are separated from each other a distance equal to that between the external surfaces of the side beams, so that said walls are attached and joined, from their upper longitudinal edge, to the external surface of the lateral stringers

With the constitution mentioned, the lower plate enclosure is obtained with a smaller number of bending lines than the enclosure of the known bearing structure mentioned above. Similarly, the lower sheet metal enclosure of the invention includes only two right angles, adjacent to the bottom, which allows greater precision in the configuration of the enclosure, with respect to the structure indicated in the background of the invention.

The existence of fewer folds and the fact

If the angles of bending are 90º, it allows easier assembly and adjustment of the lower enclosure, as well as a more compact design.

The structure of the invention also has as an advantage, with respect to the known structures, a simpler and more stable assembly of the lower sheet metal enclosure on the lateral stringers, fixed to the sides thereof and not to its lower surface.

The rectangular section of the lower sheet metal enclosure also facilitates the assembly of said enclosure, with respect to the known trapezoidal structure.

In short, with the structure of the invention, a lower enclosure with a simpler, stronger and safer assembly is achieved than with the bearing structure of the state of the art indicated.

PREVIOUS DESCRIPTION OF THE DRAWINGS.

The attached drawing shows, schematically, a supporting structure for stairs and mobile corridors, constituted according to the invention and given as a non-limiting example.

DETAILED DESCRIPTION OF AN EMBODIMENT MODE.

The accompanying drawing schematically shows a bearing structure constituted in accordance with the invention, which comprises two parallel lateral stringers 1, which define rolling surfaces 2 for the rollers of the vanes / rungs that constitute the mobile band, not represented, of the escalator or moving corridor. The structure is completed with a bottom enclosure 3 of folded sheet, which comprises a bottom 4 and two side walls 5 perpendicular to the bottom 4, delimiting between said bottom and angled walls 6 of 90 °.

The walls 5 of the lower enclosure 3 are separated from each other by a distance equal to that between the external surfaces 7 of the profiles1. In this way the walls 5 are tightly attached to the outer surface 7 of the stringers 1, to which they are joined by any system, for example by rivets 8, which would work as a cut.

The structure represented in the attached drawing is of simple constitution and assembly, allowing a perfect fit between the different components.

Claims (2)

5 1.- Supporting structure for stairs and mobile corridors, comprising:

-

A mobile band composed of a series of pallets / rungs provided with rollers through which they support and slide on lateral guides;

-

Two lateral stringers that define rolling surfaces for the pallet / step rollers;

-

 A lower enclosure of plated sheet joined by its longitudinal edges to the lateral stringers;

10 Characterized in that the lower enclosure of folded sheet comprises a central bottom and two lateral walls perpendicular to the bottom, whose walls are attached and joined, from their upper longitudinal edge, to the outer surface of the lateral stringers. 7 66 3 Fig. 1 SPANISH OFFICE OF THE PATENTS AND BRAND Application no .: 201231400 SPAIN Date of submission of the application: 10.09.2012 Priority Date: REPORT ON THE STATE OF THE TECHNIQUE 51 Int. Cl.: B66B23 / 00 (2006.01) RELEVANT DOCUMENTS

Category

56 Documents cited Claims Affected

TO

JP 58075274 U (UNKNOWN HOLDER) 21.05.1983, one

figure 4.

TO

JP 07013877 U (OTIS ELEVATOR COMPANY) 10.03.1995, one

Figure 1.

TO

US 6374981 B1 (GSCHWENDTNER et al.) 04/23/2002, one

column 3, lines 19-30; Figures 1-3.

TO

US 2003 116402 A1 (KRAMPL) 26.06.2003, one

paragraph [0026]; figures 1,2.

Category of the documents cited X: of particular relevance Y: of particular relevance combined with other / s of the same category A: reflects the state of the art O: refers to unwritten disclosure P: published between the priority date and the date of priority submission of the application E: previous document, but published after the date of submission of the application

This report has been prepared • for all claims • for claims no:

Date of realization of the report 06.03.2013

Examiner F. Monge Zamorano Page 1/4

REPORT OF THE STATE OF THE TECHNIQUE Application number: 201231400 Minimum documentation searched (classification system followed by classification symbols) B66B Electronic databases consulted during the search (name of the database and, if possible, terms of search used) INVENES, EPODOC State of the Art Report Page 2/4  WRITTEN OPINION Application number: 201231400 Date of Completion of Written Opinion: 06.03.2013 Statement

Novelty (Art. 6.1 LP 11/1986)

Claims Claims one IF NOT

Inventive activity (Art. 8.1 LP11 / 1986)

Claims Claims one IF NOT

The application is considered to comply with the industrial application requirement. This requirement was evaluated during the formal and technical examination phase of the application (Article 31.2 Law 11/1986).  Opinion Base.- This opinion has been made on the basis of the patent application as published. State of the Art Report Page 3/4  WRITTEN OPINION Application number: 201231400  1. Documents considered.- The documents belonging to the state of the art taken into consideration for the realization of this opinion are listed below.

Document

Publication or Identification Number publication date

D01

JP 58075274 U (UNKNOWN HOLDER) 05/21/1983

D02

JP 07013877 U (OTIS ELEVATOR COMPANY) 10.03.1995

D03

US 6374981 B1 (GSCHWENDTNER et al.) 04/23/2002

D04

US 2003 116402 A1 (KRAMPL) 06.26.2003

 2. Statement motivated according to articles 29.6 and 29.7 of the Regulations for the execution of Law 11/1986, of March 20, on Patents on novelty and inventive activity; quotes and explanations in support of this statement The application is an addition to patent ES 2322536. As established in art. 109.2 of the current Patent Law 11/1986: "Additions shall be considered as an integral part of the main patent, except for those effects where this Law provides otherwise." The object of the request, defined in the single claim as one: “Supporting structure for stairs and mobile corridors, comprising:

�

A mobile band composed of a series of pallets / steps provided with rollers through which they support and slide on lateral guides

�

Two lateral stringers that define rolling surfaces for pallet / step rollers

�

A lower enclosure of folded sheet joined by its longitudinal edges to the lateral stringers ”

coincides with the object of the main patent, complying with the provisions of art. 108.1 of the aforementioned Patent Law: "The holder of a patent in force may protect inventions that perfect or develop the invention object of it, requesting additions to the patent provided that they are integrated with the object of the main patent in the same inventive unit." The unique claim characterizes the invention because: "The lower enclosure of folded sheet comprises a central bottom and two side walls perpendicular to the bottom, whose walls are attached and joined, starting from their longitudinal edge superior to the outer surface of the lateral stringers." Once the relevant search, complementary to the search for the main patent, has been found, no disclosures could be found in the state of the art that could affect the novelty or the inventive activity of the application. The documents cited are considered the closest to the invention in the state of the art, but disclose different embodiments of the same object: the structure of an escalator or rolling aisle. Thus, D1, a Japanese utility model, discloses a structure that is very formally analogous but constructed not by folding of sheet metal but by joining plates (apparently by welding since no rivets or screws are represented). D2 (Otis) discloses a lattice structure in which the guides of the blade rollers are fixed to the structure with the intermediation of ribs. It is not, therefore, a self-supporting structure of bent sheet. They also disclose lattice structures D3 (Gschwendtner) and D4 (Krampl) and again it is the same technical field of the invention but with different solutions to the problem of providing the staircase or corridor with a structure. Thus, taking into account the foregoing considerations and in the opinion of the examiner, the requirements of novelty, within the meaning of article 6 of the current Patent Law 11/1986, and of inventive activity, within the meaning of article 8 of said Law to the unique claim of the application. State of the Art Report Page 4/4