ELASTICALLY FLEXIBLE SAFETY PROFILE PARTICULARLY DESIGNED FOR AUTOMATIC DOORS OF TRAINS, METROPOLITANS, BUSES, TRAMS AND SIMILAR

IT0247090Y1Inactive Publication Date: 2002-05-02S I L G R A SOC PER AZIONI
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Patent Information

Authority / Receiving Office
IT · IT
Patent Type
Utility models
Current Assignee / Owner
S I L G R A SOC PER AZIONI
Filing Date
1999-10-25
Publication Date
2002-05-02
Estimated Expiration
Not applicable · inactive patent

AI Technical Summary

Technical Problem

Existing automatic door profiles for trains, subways, buses, and trams fail to balance softness and tightness, leading to potential trauma for passengers caught between closing edges.

Method used

An elastically yielding profile with a resilient body featuring a relatively flexible central portion and a highly flexible contact edge, designed to provide graduated flexibility and mechanical resistance, ensuring a labyrinth closure for limb protection.

Benefits of technology

The profile achieves optimal mechanical resistance with elastic softness, safeguarding passenger limbs while maintaining door stability and safety.

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Description

Description of the Patent for a Utility Model entitled: "ELASTICALLY FLEXIBLE SAFETY PROFILE, PARTICULARLY DESIGNED FOR AUTOMATIC DOORS OF TRAINS, SUBWAYS, BUSES, TRAMS AND SIMILAR" by the Company SILGRA Soc. per Azioni, of Italian nationality, with registered office in BUSTO ARSIZIO - (Varese) - and with elective domicile at the Patent Office of Dr. Franco Cicogna, in Via Visconti di Modrone 14 / A - Milan. Deposited at N. DESCRIPTION The present invention relates to an elastically compliant safety profile, particularly designed for automatic doors on trains, subways, buses, trams and the like. As is known, on means of transport equipped with remote-controlled closing doors, it is necessary to provide, on the closing edge of the doors, a profile that allows to avoid traumatic effects on passengers who, for any reason, are hit by the closing edge of the door or who remain trapped between the edges of two opposing doors, such as 25011.199?] -THE is exemplified in figure 1. The solutions that are currently used include: / / STUDIO \>\ A / TECHNICAL-LEGAL and\c\ _ O / / Vsl Poq 0 h PATENTS L a Doll. Prol. / - / V? \ FRANCO CICOGNA / * / no the creation of soft profiles which, however, more often than not, fail to combine the two fundamental characteristics required, that is, a notable softness in contrast with what remains in the sliding area of ​​the doors, and an optimal seal and closing stability. The aim of the invention is to eliminate the previously mentioned drawbacks by creating an accident-preventing, elastically yielding profile, specifically designed for automatic doors on trains, subways, buses, etc., which is structured in such a way as to always present excellent mechanical characteristics, together with a softness such as not to cause trauma to limbs that accidentally remain trapped between the closing edges of the doors. Within the scope of the above-described task, a particular object of the invention is to provide an accident-preventing profile which allows the flexibility value to be adjusted as desired, depending on the different types of application. A further aim of the present invention is to create a profile which, due to its particular manufacturing characteristics, is able to offer the widest guarantees of reliability and safety in use. This safety profile is easily obtainable using elements and materials commonly available on the market, and is also competitive from a technical point of view. STUD O TECHNICAL-LEGAL PATENTS Prof STORK Qualities FRANCO economic. The task described above, as well as the aims mentioned and others, which will be better highlighted later, are achieved by an elastically yielding accident prevention profile, particularly designed for automatic doors of trains, subways, buses, trams and similar, characterised by the fact that it comprises an elongated body in elastically yielding material. devole presenting, in cross-section, a relatively flexible central portion, connected, on one side, to an edge of a predominantly rigid constraint, and, on the opposite side, to a highly flexible contact edge. Further features and advantages of the object of this invention will be better highlighted through an examination of the detailed description of an elastically yielding accident prevention profile, illustrated for indicative but not limitative purposes, with the aid of the attached drawings, in which: Figure 1 shows a section of the profile according to the invention; Figure 2 schematically highlights the profile during elastic deformation. With particular reference to the numerical symbols of the above figures, the safety profile, according to the invention, which is indicated in its entirety with the reference number 1, comprises an elongated body 2 - (see figure 2) - made of elastically yielding material, such as rubber, elastomeric ; PATENTS Dr. Pr«f. FRANCO CICOGNA STUDY TECHNICAL-LEGAL re, resin or similar, which has a general bulk I know- essentially rectangular. The body 2 illustrated in figure 2 presents, in section between sversale, a portion that is relatively yielding for the presence, inside the central body 3, of a cavity 4 shaped substantially like a bell, which affects a portion less than 50% of the useful section. At one edge of the central part, a constraint edge 10 is provided, which is relatively rigid and is equipped with opposing grooves 11, for fixing to a profile mounted on a door or similar. On the opposite side, i.e. on the side of the flared area of ​​the bell-shaped cavity 4, a contact edge 20 is placed, with a second cavity 21, which covers a portion greater than 50% of the useful section, so as to create a high level of flexibility for the contact edge, which is equipped with a coupling lip 22, which develops on the continuation of one of the front faces of the central body 3. The profiles can be arranged so that the lips 22 of two opposing profiles are positioned on the opposing faces. In this way, a labyrinthine closure is created, as highlighted by the dotted lines in figure 1, ensuring, in accordance with current legislation, protection against the possible intrusion of a limb, safeguarding its integrity. STUDY b / TECHNICAL-LEGAL TI patents Qualities. Prof. FRANCO CICOGNA With the above described arrangement, we obtain a profile that is equipped with two distinct zones of differentiated flexibility, which allow for the creation of a notable yield elasticity, while maintaining optimal mechanical resistance nica. From what has been described above, it can be seen that the invention achieves the proposed purposes. In particular, it is emphasized that it is possible to modify the shape of the cavities, varying the characteristics from time to time. flexibility and mechanical resistance characteristics, depending on the various specific needs. STUD O TECHNICAL-LEGAL PATENTS ,9 ut

Claims

CLAIMS Daft. Prof, FRANCO STORK 1. Elastically yielding accident prevention profile, particularly designed for automatic doors of trains, subways, buses, trams and the like, characterized in that it comprises an elongated body, made of elastically yielding material, having, in cross section, a relatively flexible central portion , connected, on the one hand, to an edge of predominantly rigid constraint, and, on the opposite side, to a highly flexible contact edge.

2. Accident prevention profile, according to the preceding claim, characterized in that the central portion has inside it a first cavity involving a portion of less than 50% of the useful section of the central portion.

3. Accident prevention profile, according to the preceding claims, characterized in that the first cavity has a substantially bell-shaped conformation.

4. Accident prevention profile, according to one or more preceding claims, characterized in that the contact edge has, inside it, a second cavity involving a surface greater than 50% of the useful area.

5. Accident prevention profile, according to one or more resellers in the preceding cases, characterized in that it comprises, in correspondence with the contact edge, a lip which extends along the continuation of the front face of the section. particularly designed to be applied to automatic doors of trains, subways, buses, trams and the like, according to one or more preceding claims, all as more widely described and illustrated and for the specified purposes.