LOCKING DEVICE FOR ROLLER SHUTTERS AND ROLLER DOORS.

Description

TITLE PRIORITY E O6SGUS Π* AL3 ERTS GMBH S CO.KG.HERSCHEID' FED. REPUBLIC OF GERMANY LOCKING LOCK FOR ROLLER SHUTTERS AND ROLLER SHUTTERS. FEDERAL REPUBLIC OF GERMANY PATENT- N. s 2735461.8—25 OF 25 JULY 1977 THE LIVE Ut Λ 788ο Register A Protocol No. 2éo82 A '78 MINISTRY OF INDUSTRY, TRADE AND ARTICLE Provincial Office of Industry, Commerce, and Crafts of Milan COPY OF THE MINUTES OF FILING FOR A PATENT FOR INDIVIDUAL INVENTION The year 197S if day twenty-five at eleven o'clock θ minutes GUST. ALBERTS GMBH & CO. ICG. with registered office in Germany Street of the month of forty-two July HERSC1IEID ' GERMANY through the agent Eng. BARZANO' & ZANARDO SPA, and domiciled for legal purposes in Milan - Via Borgonuovo 10 at R, the agent has presented to me, the undersigned: - Stamped application for the granting of a patent for an industrial invention having as TITLE · Locking device for roller shutters and doors MAIN cmrrDHiix irw»w0«o«i astrai Priority of the patent application in: REPt FEO. OF GERMANY N. P 27 33 4Ó1.S-25 of 25 July 1977 consce» vQtsKcmitcetnfan. (application n, ) cèrréeSvtr'ih accompanied by: - Description in duplicate of 12 pages of writing. - Drawings, plates no. 2 in duplo, - Letter of appointment - DiBW2Btì2ttì3tacM^«ae»KSN«fcK«tfìtKpsBiWfìi. - Priority document and Italian translation (reservation) - Authorization axatwxdtxjexslttnie. (reservation) - DkdaÌacazxDiieTalccDrcseHSOiitadlCTiKzsKpjrbNpet^SKSticrciSPCi'tonswLitè^JUfè-Véito. - Proof of payment into postal account no. 1 / 11770 in the name of the Tax Registry Office of Rome of L. 76,500 issued by the Post Office of Milan CC, on 27.6*78 - 21.7*78 A 7 7 S - Revenue stamp from L. Tute®,- 2000 concessions or n. 313 431 745 The application, the descriptions and the drawings listed above have been signed by the applicant and countersigned by me and stamped with the office seal. IU DEPOSITOR THE OFFICES^ Russian Idyll For a copy compliant with the original p. the Director (Federico Napg, the office clerk is .........................[^àìilia Russo). TO THE MINISTRY OF INDUSTRY, TRADE AND CRAFTS CENTRAL PATENT OFFICE - ROME β82 A / 78 «aawatwc Your Company ..... TASTE. ALBERTS GMBH & CO. KG. the hi - ί .........of German nationality domiciled in HERSCHEID GERMANY fl * Wli BOW represented by Ing. BARZANO' 4 ZANARDO SpA in MILAN, Via Borgonuovo, - + jlO, with domicile elected at the same, requests the granting of a PRINCIPAL patent for the invention having as its title: t I contain Hi block for roller shutters and doors! PRIORITY: The right of priority is claimed arising from the patent application in the FEDERAL REPUBLIC OF GERMANY No. P 27 33 461.8-25 of 25 July 1977 Attached documentation: a) ί Description in duplicate of 12 pages of writing; b) Drawings in duplicate copy of n. 2 tables; c) Letter of appointment; the d) Priority document(s) with Italian translation; (reservation) e) Payment certificates (onto the C / C / P n.668004) of L. 75,500 issued by the Office. of Milan; f) Revenue stamp of L.2000. . , g) Authorization pp t Milan, THE GUST. ALBERTS Gl ΒΠ July 1978 & CO KG. p. Ing. Barzanù & Zanardo 1 I ì At 7880 Ing. Barzanò & Zanardo 'it DESCRIPTION of the industrial invention entitled: Locking device for roller shutters and roller doors* · · · bili • · * in the name of: Gust, Alberts GmbH & Co. KG ·♦ ·· of nationality: German, resident in: Herscheld 4 4 4 4 ί (Germany) '··*: deported on·, 5 ;; , Hr. 6 0 8 2 A / 78 ; J { 4 — «111« ·· * « The invention relates to a locking device for *'*'Ì ····. • 4 44 * roller shutters and roller shutter doors, with a chain of members in the shape of a circular arc, connected to each other by means of limitedly divariable joints, of which the first and last member are fixed to the winding shaft and respectively to the upper profile of the roller shutter frame. An automatic mechanical locking device of this type is already known from DE - OS 2 008 969, which has only a few semicircular segments, for example two. These segments are connected to each other by limited-rotation joints and simultaneously form the device for suspending the shutter armature from the winding shaft at the top. It has now been verified that the locking device described, in order to function, - 2 - Ing. Barzanò & Zanardo must be mounted very precisely. In fact, if the radial distance between the axis of the winding shaft and the upper edge of the armature of the chine is too great, the latter, despite the locking device, can be lifted from below more or less violently and can therefore even make it rotate! • 4 4 4 » :· turn the winding shaft backwards, if ····· .··· - * · ♦ 4 this is not blocked in any special way. Even · • « ···♦ in the case of faulty assembly <Zbile, l'albero d ’ avvoJU-..i .. · 4 4 The lock must be rotated outward when the gate armature is lowered a little further beyond its final position to bring the segments into the locked position. Furthermore, the known operating principle of the locking device presupposes that the segments can be placed in the locked position by virtue of their own weight. This presupposes not only that the joints are always easily movable, but also that there is sufficient free space, and, normally, that the gate armature guides are vertical. The aim of the invention is to prepare a locking device for roller shutters and roller doors, which has a safe operation and which is forcibly brought into its slamming position. 4·· • 4 4 * 4 4 4 · 4* »44 4** · chin Eng. Barzanò & Zanardo 4 4 - 3 This task is solved, according to the invention, by placing a tie rod between at least two adjacent members, which is intended to bring the members of the arched member chain into their position of maximum di-···* varication. .·*!* ·· ». * The tie rod places the members of the chain of membrXÌÌÌ • · · · · Λ... arched forcibly in their maximum position · .··:* ·· · · spread, so that when lowering the gate valve, ,· • 4 • · · · this blocking position is reached in ····· • · · · 4 each case· Due to the spread of the members · · · · · the shaft of the gate valve is forcibly rotated further, into its blocking position· The gate shaft is rotated beyond its dead center, so the locking device cannot be unlocked. The locking device is automatically unlocked only by rotating the gate shaft in the direction of the winding, due to the winding process. The invention also offers the advantage that the chain of arched members can be used simultaneously as a suspension device, thus eliminating the need for additional suspension of the gate to the gate shaft. According to the invention, the blocking device is completely independent of the individual movement system, the type of gate profile, the construction of the window, and other design features. The locking device according to the invention operates reliably and even without a bi-....* *.*··* * • 4 · · · maintenance dream. It can also be added to a shutter later. ζϊϊίί 4 4 4 · The locking device according to the invention provides various adjustment possibilities in order to be able to adapt it to the respective installation conditions. .. · 4 tion. The upper part of the chain of arched members is rigidly fixed to the winding shaft and has a placement that can rotate approximately 2Ó0 0 against the winding direction. The rotation of the other members is limited to a value of 190° to 200°. The last member of the arched member chain is fixed to the gate frame and various adjustment options are provided. For example, the length of the arched member chain can be fixed by means of a screw and an elongated hole. The upper piece of this arched member chain can be adjusted in the direction of the circumference of the gate shaft. The barrier device according to the invention can be constructed with material and elements 4 4 •a ·· 4<4 4' '4 · 4 4 - 5 - Eng. Barzanò & Zanardo 4 4 4*4 connecting cables such that, on the one hand, they can be wound in the prescribed manner around a shaft, but demonstrate a rigid connection in the opposite direction to the winding direction. According to the claim - / / .·.*. .·· 4 4 4 4 cation 4, the chain of arched members can be a.;'· » _ « 4 · 4 4 4 tape with supports, arranged on one side, ι quali ····· Y·*** in one direction of rotation they are supported on each other and form a radius with a load capacity of about 120 mm, and in the other direction of rotation they are rounded off. 4 tolabile on a radius of approximately 20 mm. Even in these...^ •... · how to achieve complete barrier effectiveness. The members of the arched chain can be connected using spreader springs or torsion springs. This allows for the use of tie rods. The following illustrates, with reference to the attached drawings, some embodiments of the invention, in which they represent: Fig. 1 is a section through a first embodiment of a barrier device; Fig. 2 is a view of the chain of arched members and the entire barrier device, Fig. 3 is a functional diagram of the final phase of the lowering movement of the roller shutter, Fig. 4 is a functional diagram to explain the Eng. Barzanò & Zanardo - 6 placement in the locking position, fig. 5 a functional diagram of the final locking position, fig. 6 a modified embodiment of a c^'·. ···· . < . ··· tena of arched members, and **ζίί and * · *· fig. 7 a view of the connection of two membrj.,,.; ♦*· 4 » « of the chain of arched members, (according to fig. 6. Fig. 1 shows, in cross-section, nomai-'·; *· ·. * 4 4 * mind to the winding axis, a shutter with .. · • 4 the locking device according to the invention. At the po*-···; • 4 4 « φ • | * In accordance with the invention, the gate shaft 1 is connected to the gate armature 2 by means of a chain of arched members 3 as a suspension. When the gate armature 2 is wound onto the winding shaft 1, the individual members of the chain of arched members 3 are arranged in the prescribed manner around the winding shaft 1. When the gate armature is lowered, a plastic tie rod 4 rotates the shaft in the unwinding direction until the chain of arched members 3, due to the limitations of the individual members in this direction, forms a rigid element, i.e. the actual blocking device. In this way the gate is blocked. • * 4· 4*4 ··· By means of shortening, that is to say by means of the - 7 - Ing. Barzanò & Zanardo removal of individual members and adjustments to the lower member 5, the length of the chain of arched members is susceptible to adaptation. The connection 6 l · · I of the first two members allows a rotation range from 0® to approximately 260°, so that an angle 7 of approximately 100° is prevented. XI fixing to the winding shaft^ · · ϊ • MM * '« • · · · 4 4 · e · 4 ... ,··* · ··* *·· · · * · continuous connection 6 in a range that goes from · · · · • . * •.·· · ·· vertical 8 to a line 9, shifted by about 45° nej / lai 4« * · *· · ». «»*··· winding direction, and with» allows for an adjustment*-*; • 4 4 4 φ 4 4 4 4 * precise adjustment. The elastic tie rod 4 is then fixed to the winding shaft 1 in a manner corresponding to the individual tensile force required. For the arched member chain, all materials and connecting elements can be used that can be rotated around a connecting axis from 0° to a maximum of approximately 200°, and which subsequently become rigid, i.e. can no longer be rotated. This rotation range can be provided either by its own elasticity or by spring force. Both upper and lower fastenings are possible. Preferably, the lower suspension should be provided using hollow roller shutter profiles with a 10 mm hole for gripping a round bar, which distributes the load across the entire width of the frame. - 8 - Ing. Barzanò & Zanardo of the shutter. But any other construction that can be loaded accordingly can also be used. * · 4 » Fig. 2 shows a single view of the arch member chain 3, which consists of member chains **Z·· *·· ϊ. 3'. The members 3' are connected to each other by a joint;;;;; 4 4 4 4 i· through the pivot pins 6'. The pivot pins 6' ····; • * · village through the holes 10' of the members. The holes 10', ,· • \ 1 • · · · of adjacent members 3* are arranged against each other ....Ϊ .. · 4 the other. The terminal edges 11 of the members 3'» COPX*' 4 4 4 * formats, serve as stops to limit the spreading movement. Two pairs, adjacent to each other, of the arched member chain are provided. In the middle there remains a groove, in which a tension spring 4 1 is housed. The chain of arched members 3 is fixed on one side to the winding shaft 1, by means of screw connections 12. Furthermore, a knuckle connection 13 is provided for fixing to the armature of the gate valve 2. Fig. 3 shows the arrangement in the final stage of the downward movement of the armature of the gate valve 2, which slides in the guide rail 14. The chain of arched members 3 is still located in the intended place on the periphery of the shaft of the gate valve 1. Fig. 4 shows a more advanced stage of the movement: 44 V. 4 4 - 9 - Ing. Barzanò & Zanardo descent. The armature of the shutter 2 is already straight, at the foot of the guide rails 14# so that the armature has completely descended. The chain of arched members 3 therefore becomes slack. The tension spring 7*' ' 4* holds the chain of arched members together. 3, so that the members 3' of the chain of * · · * · :· bri rd arch 3 necessarily come into position ····· ♦· · · spread apart· Due to the fact that the chain of * · • · • · · · arch members 3# during the descent of the armature of the····* .. · • · shutter 2, is extended by its weight*'''! * ····· • MI* armor, it is also ensured, necessarily, • · · .··.· • · · ·** ί that the chain of the arched members 3 goes into the volute J r spread position. The tension spring 4' also exerts a tensile force, so that the chain of arched members 3 is concentrated, as shown in Fig. 5. The members 3' reach the maximum spread position. The gate shaft is rotated to the final position, according to Fig. 5, in which the dead point is passed with respect to the gate armature 2. This position, according to Fig. 5, closes the gate armature 2 and the winding shaft 1, against an unauthorized raising of the gate armature. In the closed position, or spread position, according to Fig. 5, the - 10 - Ing. Barzanò & Zanardo members 3 * of the chain of members with prco 3 pi are next to each other with their terminal edges, so that a resistant closure is obtained ·· · · • 4 in shape and in strength. .*.*.*,*· ·* *.*· · Figs. 6 and 7 show a different form of execution*;*·* • 4 4 4 · ta of the arc member chain. ..... 4 4 4 4 The individual members of the arched member chain *; · · · · · are still coupled. 1 'to each other by means of t· · , ··»· hinge-type connections and a knuckle pin.. , 4 6'. On the hinge pin 6' is arranged, one for each ····* 4 4 4 · pin, a spiral spring 15 with arms ló, a so-called arm spring, which, in the direction of divarication, lies on the inner part of the members 7, as can be seen with particular clarity from fig. 6. By adjusting the end edges, the spread angles can be established.

Claims

1. CLAIMS l) Locking device for roller shutters and rolling doors, with a chain of metob'U. in the shape of a circumferential arc, connected to each other by means of joints with limited divarication, of which the first and the last member are fixed to the winding shaft and respectively to the upper profile of the roller shutter frame, characterised in that between at least two adjacent members there is a tie rod (4)> which - 11 - Ing.Barzahò & Zanardo is aimed at bringing the members of the chain of arched members (3) to their maximum divarication position. ·· · · » 4 • 44· *·· • 4 · · e ·♦< • ·· 2) Locking device according to claim 1, characterised in that the chain of arc-shaped members (3) consists of members (3 1 ) in the form of a ribbon, with articulated joints linked to each other, which are rollable over the shaft of the shutter (1). 3) Locking device according to claim 1, characterised in that in the joints of individual meSf-*. .... 4 ' 4 *•>4 4 4 • 4 4 4 4 4 4 4 4 4 4 4*4 4 4 4 • 4 ♦ 4 4 4 4 • 4 · 4 4 4 4 .··.·· 4 4 4 4 4 4« 4 4 4 4 members there are diverging springs. 4) Locking device according to claims 1 and 3> characterised in that the chain of arched members is a band with supports arranged on one side, which in one direction of rotation brace each other, and form a radius having a load-bearing capacity of approximately 120 mm, and in the other direction of rotation are rollable on a radius of approximately 20 mm. 5) Locking device according to claims 1, 3 and 4, characterised in that the tie rod (4) is a tension spring. 6) Locking device according to one of the above claims, characterised in that the connection (6) between the first member fixed to the winding shaft and the second adjacent member is rotatable through an angle of ΐι J from 0° to approximately 260° and is structured so as not to rotatable through an angle of approximately 200° to 300°. 7) Locking device according to one of the preceding claims, characterized in that the length of the chain of arched members is adaptable by shortening, preferably by removing the members and screwing the last member, the longest being constructed and fixed to the armature, with the member connected to it. '···· 4· * 4 4 8) Locking device according to one of the preceding claims, characterised in that the tensile force of the tie rod (4) can be established according to requirements by moving the fixing point on the winding shaft. 9) Locking device according to one of the preceding claims, characterised in that the last member of the chain of arched members, which is on the side of the armature, is fixed with a hole (10) to a round bar, which engages in the profile of the armature.