EP0953703B1

EP0953703B1 - Shackleless security padlock

Info

Publication number: EP0953703B1
Application number: EP99830246A
Authority: EP
Inventors: Verdi Viscardo
Original assignee: C O A M Sas Di Canelli Ivana & C; I L S A SNC Di Giovannini I& A
Current assignee: C O A M Sas Di Canelli Ivana & C; I L S A SNC Di Giovannini I& A
Priority date: 1998-04-29
Filing date: 1999-04-27
Publication date: 2003-08-20
Anticipated expiration: 2019-04-27
Also published as: ES2205751T3; ITBO980266A0; DE69910482T2; ITBO980266A1; IT1299990B1; EP0953703A1; DE69910482D1

Description

This invention relates to a new concept of metal "padlocks," that is to say, a locking system without the usual straight shackle or link which is normally inserted into two rings provided for the locking thereof.
It is well known that the weak part of currently available padlocks is the metallic shackle itself which, even when made of treated steel alloys, is not strong enough to withstand the action of the saw or cutting nippers which a burglar may easily obtain.
To avert such a risk, this invention, as defined in claim 1, offers a new type of padlock, capable of joining the two jambs of a door without resorting to the more usual, visibly-exposed and easily reachable shackle, but, rather, using the body of the lock itself, whose dimensions, design, and the materials used in manufacturing provide greater security against break-ins.
These and other characteristics will now appear to be more closely related to a simple way of applying the invention illustrated merely by way of example and not restrictive of the potential application of his patent Reference is made to the enclosed drawings, where:
TAB. 1, fig. 1, is a representation of the installed padlock;
TAB. 2, figs. 2 & 3, are a cross-section and a view of the casing;
TAB. 3, figs. 4, 5, 6, & 7, are representations of the bolt and of the plate or lock cap;
TAB. 4, figs. 8 & 9, are representations of the details of the protective shield of the padlock;
TAB. 4, fig. 10, is a representation of one of the locking studs to be driven into the door.
With reference to the above-mentioned figures, the number 1 is used to indicate the right jamb, 2 the left jamb of the door to be locked with the padlock, 3 the threaded through studs previously fitted onto the door; 4 indicates a protective shield - here asymmetrical in shape - used to compensate for any differences in level between the two jambs, where 4' is used to indicate the washer which is almost always required.
5 indicates the cap which drives the bolt, 6, within the hemispherical-shaped casing, 7, which forms the body of the lock operated by means of a cylinder 8 and a key 9 whose rotation permits the bolt (6) to vary the position of the sinusoidal recesses 10 which come in contacts with the studs (3) during closure and penetrate the grooves 11 provided between the tips 12 and the collars 13.
7' indicates the compartment within the casing (7) which contains the cap 5; 7" is the compartment which contains the bolt (6); 7"' indicates the compartment which contains the head (12) of the stud (3); 7"" indicates the compartment that contains the cylinder 8: 14 indicates the threaded holes designed to secure by means of screws the cap (5 ) to the casing (7), and 14' indicates the through holes in the cap.
15 indicates the through holes in the cap (5), which permit the studs (3) to be driven into the casing (7).
4" indicates the raised neck of the protective shield (4) which prevents access to the stud (3) and 16 indicated the through hole via which the protective shield (4) is secured to the door surface (1) by means of the screw.In practice, the details related to manufacture, dimensions, shape and other features of this invention may still be altered.

Claims

"SHACKLELESS SECURITY PADLOCK," comprising a padlock body (7) having a cylinder (8), a bolt (6), and a cap (5), wherein the padlock body (7) is hemispherical in shape, with, in the middle, a keyway for the introduction of a key (9) which, by means of the cylinder (8), placed in a compartment (7""), operates the bolt (6), the bolt (6) has an "S" shape so that in the closing position recesses (10) engage grooves (11) of threaded studs (3) previously installed on two jambs of the unit the padlock is meant to lock, and
the grooves (11) are cut between specially-shaped heads (12) and collars (13), and
the bolt (6) is located between the padlock body (7) and the cap (5), both located in special compartments (7";7') within the body of the padlock, and
the cap (5) has two through holes (15), via which the stud heads (3) enter and reach the compartments (7''') within the hemisphere (7) forming the padlock body, there to be blocked by the bolt (6).
"SHACKLELESS SECURITY PADLOCK," characterised, according to claim 1, characterized by the fact that through holes (14') are drilled into the cap (5) and these threaded holes (14) extend into the casing (7), such that these two parts said are joined by means of screws.
"SHACKLELESS SECURITY PADLOCK,", according to claim 1, characterized by the fact that it comprises an asymmetrical, protective security shield (4) with a raised neck (4") and through hole (16) having the function of both protecting the studs (3) from the danger of break-in, and of making up for any differences in level between the two doorjambs (1) and (2), in conjunction with a washer (4').
"SHACKLELESS SECURITY PADLOCK," according to claim 1, characterized by the fact that the protective security shield (4) may also be circular and symmetrical, to protect the padlock body (7) on all sides.