ITVI20000122A1

ITVI20000122A1 - LOCK FOR FLOOR SECURITY GATES

Info

Publication number: ITVI20000122A1
Application number: IT2000VI000122A
Authority: IT
Inventors: Luciano Bertoncello; Roberto Bertoncello
Original assignee: Maber Costruzioni Srl
Priority date: 2000-06-07
Filing date: 2000-06-07
Publication date: 2001-12-07
Also published as: ES2260120T3; ATE321725T1; IT1315361B1; DE60118275D1; ITVI20000122A0; EP1162166B1; EP1162166A1; DE60118275T2

Abstract

The finding relates to a lock for safety gates at the floors, to be applied to the above mentioned safety gates, at the landing floors reachable by lifts, elevators and platforms in general, in building sites, as well as in other industrial activities where individuals and materials must be lifted through mobile platforms, such as lifts, elevators and the like, and safety regulations at work provide that access to the floors must be regulated through a safety gate. Said lock is characterised in that it comprises a box-shaped body inside which there is pivoted a suitably shaped bracket which, when subject to the action of a contrast spring and regulated by a release lever integral with the mobile platform, provides to coupling/releasing the tooth of the safety gate at the floors, based on the presence or absence of the same gate. <IMAGE>

Description

Descrizione Description

Il presente trovato ha lo scopo di realizzare una serratura da applicare sui cancelli di sicurezza ai piani, in corrispondenza dei piani di sbarco e raggiungibili con ascensori, elevatori e piattaforme in genere. The present invention has the purpose of realizing a lock to be applied on the safety gates to the floors, in correspondence with the landing floors and reachable by lifts, elevators and platforms in general.

Come è noto, nei cantieri edili come in altre attività industriali dove è necessario il sollevamento di materiali e persone mediante delle piattaforme mobili, quali ascensori, elevatori e simili, è richiesto dalle norme di sicurezza sul lavoro che 1 'accesso ai piani sia regolato tramite un cancello di sicurezza, il quale si può aprire solamente dopo che l'ascensore o la piattaforma si sono fermati in corrispondenza dei piani di sbarco; analogamente gli stessi non possono ripartire se il cancello suddetto non risulta chiuso in modo regolare. As is known, in construction sites as in other industrial activities where it is necessary to lift materials and people by means of mobile platforms, such as lifts, elevators and the like, it is required by the workplace safety regulations that access to the floors be regulated by a safety gate, which can only be opened after the lift or platform has stopped at the landing floors; similarly, they cannot start again if the aforementioned gate is not properly closed.

Scopo del presente trovato è quello di realizzare un dispositivo, chiamato nel seguito con il termine generico di serratura ed applicato sull'impalcatura o sulla parete dell'edificio, in corrispondenza dei piani di sbarco, che regoli il funzionamento del cancello di sicurezza ai piani e che soddisfi tutte le norme nazionali ed internazionali di sicurezza, a garanzia dell'incolumità delle persone. The purpose of the present invention is to provide a device, referred to below with the generic term of lock and applied on the scaffolding or on the wall of the building, in correspondence with the landing floors, which regulates the operation of the safety gate at the floors and that meets all national and international safety standards, to guarantee the safety of people.

Ciò si realizza sostanzialmente mediante una serratura costituita da un corpo scatolato all'interno del quale è imperniata una staffa opportunamente sagomata la quale, sottoposta all'azione di una molla di contrasto e regolata da una leva di sblocco solidale con la piattaforma mobile, provvede ad agganciare/sganciare il nasello del cancello di sicurezza ai piani, in relazione alla presenza o all'assenza del cancello medesimo. This is substantially achieved by means of a lock consisting of a box-shaped body inside which a suitably shaped bracket is pivoted which, subjected to the action of a contrast spring and regulated by an release lever integral with the mobile platform, provides for hook / unhook the nib of the safety gate to the floors, in relation to the presence or absence of the gate itself.

Costruttivamente, la staffa è costituita da una lamiera, sagomata in modo da costituire almeno due superfici ed imperniata in modo folle sul corpo scatolato tramite un perno saldato sulla staffa stessa. Constructively, the bracket is made up of a sheet metal, shaped so as to constitute at least two surfaces and pivoted idly on the boxed body by means of a pin welded to the bracket itself.

Una estremità di detta staffa presenta un incavo, opportunamente sagomato, atto ad accogliere il nasello del cancello, quando lo stesso è chiuso mentre l'altra estremità è munita di un tastatore che si mantiene a contatto con una camma applicata su una leva di sblocco, applicata sulla piattaforma mobile. One end of said bracket has a recess, suitably shaped, suitable for receiving the nib of the gate, when it is closed, while the other end is equipped with a feeler which remains in contact with a cam applied on a release lever, applied on the mobile platform.

Operativamente, a cancello chiuso, la staffa, grazie all'azione di spinta della molla di contrasto, è posizionata in modo da impedire lo sganciamento del nasello del cancello dalla serratura. Operationally, with the gate closed, the bracket, thanks to the thrust action of the contrast spring, is positioned in such a way as to prevent the release of the gate nib from the lock.

Quando la piattaforma è arrivata al piano di sbarco 1‘apertura del cancello avviene tramite la camma, applicata sulla leva di sblocco, che, introducendosi nella feritoia ricavata sul corpo scatolato della serratura, vince la forza di contrasto della molla di spinta, provocando così una rotazione angolare della staffa, tale da permettere al nasello del cancello di sganciarsi. When the platform has reached the landing level, the gate opens by means of the cam, applied on the release lever, which, by introducing itself into the slot obtained on the boxed body of the lock, overcomes the contrast force of the thrust spring, thus causing a angular rotation of the bracket, such as to allow the nib of the gate to release.

Inoltre, sempre per assolvere alle norme di sicurezza secondo le quali, quando il cancello è in posizione di apertura, non è possibile movimentare la piattaforma, il trovato prevede che, quando il cancello risulta aperto, si realizzi un aggancio automatico fra la staffa e la leva di sblocco in modo tale che quest 'ultima, non potendo sfilarsi dalla serratura di sicurezza ,impedisce l'accidentale movimentazione della piattaforma stessa. Furthermore, again to comply with the safety standards according to which, when the gate is in the open position, it is not possible to move the platform, the invention provides that, when the gate is open, an automatic coupling is made between the bracket and the release lever so that the latter, not being able to slide out of the safety lock, prevents accidental movement of the platform itself.

Infine, sempre per ottenere la massima sicurezza, il trovato prevede che lo sfilamento completo della leva di sblocco dalla serratura, per rendere libera la piattaforma di muoversi, sia possibile solamente dopo l'introduzione del nasello del cancello nella serratura . Finally, again to obtain maximum safety, the invention provides that the complete extraction of the release lever from the lock, in order to make the platform free to move, is possible only after the insertion of the gate nib into the lock.

Il trovato verrà ora di seguito più dettagliatamente descritto, in una sua particolare forma di realizzazione, resa a solo titolo di esempio illustrativo e non limitativo, con l'aiuto delle tavole di disegno allegate dove; The invention will now be described in more detail below, in a particular embodiment thereof, given only by way of illustrative and non-limiting example, with the help of the attached drawing tables where;

- le figg.1 e E (Tav.I) rappresentano le viste in elevazione ed in pianta di una piattaforma munita della serratura di cui al trovato, in posizione di salita e discesa; - Figs. 1 and E (Table I) represent the elevational and plan views of a platform equipped with the lock according to the invention, in the up and down position;

- le figg.3 e 4 (Tav.II) rappresentano le viste in elevazione ed in pianta della piattaforma di fig.l, in posizione di aggancio; - figs. 3 and 4 (Table II) represent the elevational and plan views of the platform of fig. 1, in the hooking position;

- le figg.5 e 6 (Tav.III) rappresentano le viste in pianta ed in elevazione, sezionate rispettivamente secondo le linee V-V e VI-VI, della serratura di cui al trovato, con il cancello chiuso; - Figures 5 and 6 (Table III) represent the plan and elevation views, sectioned respectively along lines V-V and VI-VI, of the lock according to the invention, with the gate closed;

- le figg„7 e 8 (Tav.IV) rappresentano le viste in pianta ed in elevazione della serratura, durante l'introduzione della leva di sblocco; - le figg.9 e 10 (Tav.V) rappresentano le viste in pianta ed in elevazione della serratura con il cancello aperto; - figs 7 and 8 (Table IV) show the plan and elevation views of the lock during the introduction of the release lever; - figs. 9 and 10 (Table V) show the plan and elevation views of the lock with the gate open;

- le figg.11 e 12 (Tav.VI) rappresentano le viste in pianta ed in elevazione della serratura durante la fase di sgancio della leva di sblocco; - figs. 11 and 12 (Table VI) show the plan and elevation views of the lock during the release phase of the release lever;

- le figg.13,14 e 15 (Tav.VII) rappresentano le tre viste ortogonali della staffa sagomata. - figs. 13,14 and 15 (Table VII) represent the three orthogonal views of the shaped bracket.

Come visibile nelle figg.1-2, la serratura 1 di cui al trovato, sulla quale si aggancia il cancello 2 di sicurezza ai piani di sbarco, è costituita da un corpo scatolato 3 fisso e solidale con L'impalcatura o la parete dell'edificio dove è presente il cancello e da una leva di sblocco 4, solidale con la piattaforma mobile 5. As can be seen in Figures 1-2, the lock 1 according to the invention, on which the safety gate 2 is hooked to the landing floors, consists of a box-like body 3 fixed and integral with the scaffolding or the wall of the building where the gate is present and a release lever 4, integral with the mobile platform 5.

Come visibile nelle figg.2-3, quando la piattaforma 5 è in posizione al piano, la leva di sblocco 4 va ad inserirsi nel corpo scatolato 3 per permettere l'apertura del cancello 2. As can be seen in figs. 2-3, when the platform 5 is in position on the floor, the release lever 4 is inserted in the boxed body 3 to allow the gate 2 to be opened.

Come visibile nelle figg.5 e 6, il corpo scatolato 3 contiene al suo interno una staffa h sagomata in modo da presentare almeno due pareti 7 e 8 e munita di un perno 9, calettato in modo folle sul corpo medesimo. As can be seen in Figures 5 and 6, the box-shaped body 3 contains inside it a bracket h shaped so as to have at least two walls 7 and 8 and equipped with a pin 9, idly keyed onto the body itself.

Sulla staffa 6 agisce una molla 10 di contrasto alla rotazione di detta staffa. A spring 10 acts on the bracket 6 to oppose the rotation of said bracket.

Come visibile sempre nelle figg.5 e 6, la chiusura del cancello 2 é assicurata dal fatto che il nasello 11 è trattenuto entro la sede 12, ricavata sulla parete 7 della staffa, grazie alla spinta della molla 10, che mantiene bloccata detta staffa contro il tubetto di riscontro 13. As can also be seen in figs. 5 and 6, the closure of the gate 2 is ensured by the fact that the nib 11 is held inside the seat 12, obtained on the wall 7 of the bracket, thanks to the thrust of the spring 10, which keeps said bracket locked against the stop tube 13.

Come visibile nelle figg.7 e 8, con l'arrivo al piano della piattaforma 5 la leva di sblocco 4, solidale con detta piattaforma, va ad inserirsi all'interno del corpo scatolato 3 e, tramite la sua camma 14, spinge il tastatore 15 posto sulla parete 8 della staffa 6 e, vincendo la spinta della molla 10, provoca la rotazione della medesima di un quantità angolare tale almeno da sbloccare il nasello li dalla sede 12 e quindi permettere l'apertura del cancello 3. As can be seen in figs. 7 and 8, upon reaching the platform 5 the release lever 4, integral with said platform, fits inside the boxed body 3 and, by means of its cam 14, pushes the feeler 15 placed on the wall 8 of the bracket 6 and, by overcoming the thrust of the spring 10, causes the rotation of the same by an angular quantity such as to at least release the lug 11 from the seat 12 and therefore allow the opening of the gate 3.

Come visibile nelle figg.9 e 10, quando il cancello 3 è aperto, per impedire l'eventuale erronea movimentazione della piattaforma 5, si realizza un aggancio automatico fra la staffa 7 e la leva di sblocco 4, dotando detta leva di un dente 16 che si impegna con il tastatore 15 della staffa. As can be seen in figs. 9 and 10, when the gate 3 is open, to prevent any erroneous movement of the platform 5, an automatic coupling is made between the bracket 7 and the release lever 4, equipping said lever with a tooth 16 which engages with the feeler 15 of the bracket.

Infine, come è visibile nelle figg.il e 12, l'apertura della serratura si realizza solamente dopo che il cancello è stato chiuso (come richiesto dalle norme di sicurezza), poiché è necessario che il nasello 11 si porti a contatto con il bordo 17 della parete 7 per provocare una rotazione della staffa che svincola il dente 16 dal tastatore 15 e quindi per permettere l'estrazione della leva di sb locco 4 dal corpo scatolato 3. Finally, as can be seen in Figures 11 and 12, the lock is opened only after the gate has been closed (as required by the safety regulations), since it is necessary that the lug 11 comes into contact with the edge. 17 of the wall 7 to cause a rotation of the bracket which releases the tooth 16 from the feeler 15 and therefore to allow the extraction of the release lever 4 from the boxed body 3.

Claims

CLAIMS 1. LOCK FOR SAFETY GATES ON FLOORS, to be applied on safety gates on floors, in correspondence with landing floors, reachable by lifts, elevators and platforms in general, in construction sites as in other industrial activities where there is the lifting of materials and people by means of mobile platforms, such as lifts, elevators and the like and it is required by the workplace safety regulations that access to the floors is regulated by a safety gate, which can only be opened when the lift or platform they have stopped in a specific position, just as they cannot start again if the gate itself is not closed properly, said lock being characterized by the fact that it comprises a box-shaped body inside which a suitably shaped bracket is pivoted which, subjected to the action of a contrast spring and regulated by an release lever integral with the mobile platform, hooks / release the nib of the safety gate on the floors, in relation to the presence or absence of the gate itself.

2. LOCK FOR FLOOR SAFETY GATES, according to claim 1, characterized by the fact that the bracket is constituted by a sheet, substantially shaped according to at least two surfaces and pivoted idly on the boxed body by means of a pin welded to the bracket itself, one one end of said bracket presenting a recess suitable for receiving the nib of the gate, when it is closed, while the other end is equipped with a feeler which remains in contact with a cam applied on a release lever, applied on the mobile platform .

3. LOCK FOR FLOOR SAFETY GATES, according to claim 2, characterized by the fact that, when the gate is closed, the bracket, thanks to the thrust action of the contrast spring, is positioned in such a way as to prevent the release of the gate nib from the lock; then, when the platform has reached the level of the floor, the gate opens by means of the cam, applied on the release lever, which, by automatically introducing itself into a slot in the boxed body of the lock, overcomes the force of contrast of the thrust spring, thus causing an angular rotation of the bracket, such as to allow it to disengage from the nib of the gate.

4. LOCK FOR FLOOR SAFETY GATES, according to claim 3, characterized by the fact that, when the gate is in the open position, an automatic coupling takes place between the bracket and the release lever so that the latter, not being able to slide out of the safety lock, it prevents accidental movement of the platform itself.

5. LOCK FOR FLOOR SAFETY GATES, according to claim 4, characterized by the fact that the complete extraction of the release lever from the lock, to make the platform free to move, is possible only after the introduction of the gate nib in the lock .

6. LOCK (i) FOR FLOOR SAFETY GATES, according to claim 5, characterized in that it consists of a fixed box body (3) integral with the scaffolding or with the wall of the building equipped with the gate and with a release lever (4), integral with the mobile platform (5) which is inserted into the box body (3) to allow the opening of the gate, said box body containing inside it a bracket (6) shaped so as to have at least two walls (7,8) and equipped with a pin (9), idly keyed onto the body itself, on said bracket by acting a spring (10) j, to counteract the rotation of the bracket itself.

7. LOCK FOR FLOOR SAFETY GATES, according to claim 6, characterized in that the closing of the gate (E) is ensured by the lug (11) held within the seat (12), obtained on the wall (7) of the bracket, thanks to the thrust of the spring (10), which keeps said bracket locked against the stop tube (13).

8. LOCK FOR LANDING SAFETY GATES, according to claim 7, characterized by the fact that the release lever (4), integral with the platform, when it is inserted inside the boxed body (3), by means of its cam (14); pushes the feeler (15) placed on the wall (8) of the bracket (6) and, overcoming the thrust of the spring (10), causes the rotation of the same by an angular quantity such as to unlock the nib (11) from seat (1E) and therefore to allow the opening of the gate.

9. LOCK FOR LANDING SAFETY GATES, according to claim 8, characterized in that an automatic coupling is made between the bracket (7) and the release lever (4) by equipping said lever with a tooth (16) which engages with the feeler (15) of the bracket. I. LOCK FOR LANDING SECURITY GATES, according to claim 9, characterized by the fact that the opening of the lock is possible only when the lug (11) comes into contact with the edge (17) of the wall (7) to cause a rotation of the bracket that releases the tooth (16) from the feeler (15) and therefore to allow the extraction of the release lever (4) from the boxed body (3).