CYLINDER LOCK.

Description

TITLE CYLINDER LOCK. PRIORITY ISRAEL DOM.PATENT NO. 51904 OF 19 APRIL 1977 THE DIRECTOR R f 4 Rome, you.................... Who,.: you 7jv-£5JJ 6659 5 / i's Register A Protocol or re 26? MINISTRY OF POST, COMMERCE AND CRAFTS Provincial Office of Industry, Commerce and Crafts of Iviuaiìo COPY OF THE MINUTES OF FILING FOR A PATENT FOR AN INDIVIDUAL INVENTION The year 197& the day thirteen eleven minutes and hours, LANGZAU YARD3ÌI Shimeon Enanuol and of XDcttx iX Gentlemen LaAGZAav YaRDlUI Dan of the month of January c fifty-two of Israeli nationality Via » both residents of Reney-Rraq (Israel) reakJenxax MODIANO & ASSOCIATI Sas di dr.ing. G. MODIANO & C. through an agent (Agenzia Italiana Brevetti e Marcili) and with domicile for legal purposes at Milan - Via Meravigli 1G at the agent's office has presented to me, the undersigned: - Stamp application for the granting of a PATENT FOR INDIVIDUAL INVENTION PRINCIPAL COimidxfWW having for CYLINDER LOCK Inventor designat g ” ” Priority of the patent application in: Israel No. 5 1%rt of 19 April 1977 supplementary to patent No. - - - filed on - - - granted on - - ~ (application No. ) accompanied by: - Description in duplicate of 5 pages of writing. - Drawings, plates no. 1 in duplo. • Letter of appointment - Ebctó^axkiOjexDttefjiwiotccadxAltoilòpcGEnrax - Priority document and Italian translation (with reservation) - zQj £ h.tftr kw ose xR LCOfixscK daitM n sten! or re·: pceixeraserec me nzron aicxiekORjveTKK - Proof of payment on postal account no. 1 / 11770 in the name of the Tax and Concession Registry Office Rome of 1.. 42,000 issued by the Post Office of Milan 15 on 13.1.1978 n- 5-46 - Revenue stamp of L. 1,500, The application, descriptions and drawings listed above have been stamped and sealed with the official stamp For copy cc-, forms to the original signed by the applicant and countersigned by me- 66595 / i > ! ? ί ; ; t <'· :'7 .'· ; ,, , / ί '.!< . ' ·'' ' / . / Hon.le UHI STERO IH BUSTAIA COLAEBCIO.....EL ARTIGIAN ATO Central Patent Office - R 0 LA The undersigned LAHG2AM YAR.LWI Shimeon Emanuel and LAHGSAm YARLBJ1 Dan, both of Israeli nationality, both residing in Beney-Braq (Israel), as agent 1.0 DI. 26 2 MW ♦z ; 1 'ì? TO..:. HO A ASSOCIATI Sa e. di Lr.Ing, Gi-ODIANO & C. (Italian Patent and Trademark Agency) and with registered office in Filano, via F.Gravigli 16, applies for the granting of a principal patent for the invention having as its title CYLINDER LOCKING Priority of patent application ins Israel No. 51904 of April 19, 1977 ....... Documentation, attached» . . ......... a) Description in duplicate of 5 pages of writing b) Of, drawings of n. 1 table in duplicate ........ c) Letter of appointment .. ... . ............ d) Priority document and Italian translation (not reserved) e) Certificate of payment (ocp li. 1 / 11770) of L. 42,000 issued by the Post Office of Milan 15 on f) revenue stamp of L. 1,500 GLK Έ978 Λ7****** Rogante (66595) 41837 / 77 «CYLINDER LOCK» LANGZAli YARDStìI Shinieon Etoanuel θ LANGZAK YARDSÌI Dan both to Bency-Braq. (Israel) fQQ' both of Israeli nationality Deposit them 1 3 GZN. 1878 ** 1 9 2 6 2 J / TJ 0 0 0 0 0 • · · , ...... · The construction of cylinder locks with pin rotors. ·· ·.«, • » · · · **** «»·« pins are well known. These locks include two or more rows of Wfiori* • * •••••.fi ··*·*· pins that prevent locking or unlocking without. a J5tCàv«Ì , 1 ! · · · ·.» ·.· ·· » ·. and suitable. They are pushed into the closed position by means of a hub of leadQbe· .·· spiral springs arranged ©©linearly with said pins. While it is quite difficult to open such a lock.βοϊί · *· ζ '····· using' a false key, it is not impossible to neutralize it;Ge ' * * * * * * • ··: :. : . .* · · «* • , , · · ·.»· · .· * ♦ · » · • 9 · » · i ι i the I i The functional parts of the lock are destroyed. This is done by intruders by drilling a hole in the underside of the lock, thereby destroying either the pins or the springs underneath, with the result that either the pins are no longer able to hold the locking mechanism in the locked position, or that with the destruction of the springs the pins themselves fall from their locked position, so that the lock becomes ineffective. . . 5There have been proposals to make locks burglar-proof. In order to prevent the destruction of the pins, some lock manufacturers have proposed making the first pins facing outwards from the door or drawer from hardened steel that cannot be penetrated by a common drill. In this case, however, the intruder can fi... Always drill a hole in the spring area, destroy the springs and thereby remove the pins from their locking positions. The present invention relates to an improvement to locks of the type indicated above and the object of the invention is to manufacture locks which are acceptably anti-theft, i.e. impenetrable by drilling. , A * , According to the invention, one of the pins, preferably the first one · »····. *·*·* · · · · · the outward facing pin is wrapped together with the spring underneath the etan'f^d», · ....... • · · · · · · a sleeve made of hardened steel or steel alloy that cannot be penetrated by a common drill. In order to put the above proposal into practice, the foyo;,·,; . ·· · • Σ. * or cavity, in which the first pin or rotor is placed is of diameter awi.poÓd*.* .. · · . · • A · · · « larger than usual, so that it can be used to contain HétÌSo AA· a φ ♦ ·,♦ / ·* sleeve that fits into the same and into which the pin rotors and the spring are inserted. In a practical embodiment of the invention, short slotted pieces of commercially available tubes are used, i.e., hollow pins which in the construction of the machine serve to connect parts through which these hollow pins extend. Although the use of unslotted hollow pins or short pieces of. pipe ι . non-slotted pins fall within the essence of the invention, for reasons that will be made clear below it is preferable to use the aforementioned commercially available hollow pins. 1 ' The invention may be better understood from the following description and with reference to the attached drawings, in which: ν' f ζ.·;· . ΡΗ \ρ,\ / Λ / Figure 1 is a front view of a cylinder lock; Figure 2 is a side elevation of the lock; Figure 3 is a bottom view of the same lock; and Figure 4 is a perspective view of the key pins which are preferable to use. Referring first of all to figure 1, the cylinder is arranged in a body or casing 1 which can be accessed through the lock hole 2. Inside the body or casing there are two overlapping clean knocks 3 and 4, the lower ones being supported on springs. J · · · · which push the aforementioned pins into the locking position. Fella*Mfe}a··., ,··· ··' *···· ​​* ζ from the bottom of the cylinder lock, the numerical reference 6 indicates· Ϊ .·. I • · · · · ···· · · the holes or cavities in which the rotors are housed. ·...· •. · · *♦ · « · · · · · practical embodiment of the present invention the outermost cavities, preferably at both ends of the lock .. v. 4 . cylindrical, are larger than the other cavities, i.e. have a larger diameter. These two cavities are indicated by the number 7. To secure the outermost pins (pins 4 and the spring 5), a hollow pin 8 is used, as shown in figure 4. These pins are commercially available and are inserted into the large cavity 7 by pressing them together slightly, thereby narrowing their slot lengthwise. When the pressure is released, the slot opens elastically and the hollow pin can fit into the cavity 7 with a light forced fit. At this point, the pin rotors and springs can be inserted into all the holes or cavities in the usual manner. It follows that the outermost pin, including the supporting spring, / θ λ ' / η,-. . / «. Eày ·, 'n ò prophetic against any drilling action and therefore the pins behind the first pin (indicated by the number 7) are not within the reach of a drill used by an intruder. While for many purposes it may be sufficient to protect in this way the outermost pin in correspondence with the end of the cylinder lock facing outwards, in practice the manufacturer of such locks never knows which end of the ·* * ·. cylinder will face outwards, as this is established by the final buyer and by the conditions in the position in which the lock is to be mounted. Therefore, it is preferable to provide the middle. «ìd. ' . · • · · · · J » « · * · ... While the invention has been described in relation to a type*cLf** .··.*'» .· ·. · · · · • · · · · cylinder lock with pin rotors, a lock which serves to, ϋ%α!βζ ...·· for example, it is to be understood that the invention itself is applicable to all cylinder locks with pin rotors, such as those used as spring-loaded night locks without key turn, in combination with mortise locks, padlocks and so on.

Claims

1. CLAIMS 1. A cylinder lock comprising pin rotors, the rotors being supported on spiral springs, characterised in that at least one pin rotor together with its underlying spring is enclosed by a sleeve made of a hardened material, such as hardened steel or steel alloy, 2. Cylinder lock according to claim 1, characterised in that the sleeve consists of a standard commercially available slotted hollow pin.

3. Oil cylinder lock according to claim 1, characterised in that the pin closest to one end of the cylinder is enclosed together with the relative spring in a sleeve, 4. Cylinder lock according to claim 1, characterized in that two pins, each one closer to each end of the cylinder, are enclosed in sleeves, pi LANGZAM YARDEU LANGZAM YARDENI Shimeon Emanuel © • » *····* • · · · ·'* 4 * ♦ ri · · . · * * 4 * ♦ • •44 Dan 4*4*4 • « ♦ 4 · s the agent * 4 · • * · » ··. • 4 « 4 .··.··· • · * N ••'ζ 4 4» B44> * · · 4 1 ' ' Λ. 1 9 2 6 2 ft / 78