WO2007054597A2

WO2007054597A2 - Closure device for public telephone boxes

Info

Publication number: WO2007054597A2
Application number: PCT/ES2006/000625
Authority: WO
Inventors: Antonio Martin Lopez
Original assignee: Telefonica S.A.
Priority date: 2005-11-14
Filing date: 2006-11-14
Publication date: 2007-05-18
Also published as: ES2372185T3; EP1785573A3; BRPI0607151A2; EP1785573A2; BRPI0605418A; AR057889A1; EP1785573B1; PE20070879A1; ES2280133B2; SI1785573T1; ATE521780T1; MA30031B1; WO2007054597A3; ES2280133A1; GT200600486A

Abstract

The invention relates to a closure device for public telephone boxes, which is disposed on a support (3) that is solidly connected to the body (1) of the box. According to the invention, an electric motor reducer (4) is mounted to the support and acts on a nut (7) which actuates a rod (9) which in turn imparts a 90° rotational movement to a pair of opposing shafts (14-14') having a free chamfered end. The aforementioned shafts can be used to lock respective hooks (15-15') which are solidly connected to the door (2) which is joined to the body (1) by means of concealed internal hinges. In this way, the electric motor (4) can be actuated using a remote control. In addition, the position of the hinge and closure elements cannot be seen from outside the box and the door (2) has a completely smooth transparent surface which makes very difficult any attempt to enter the box forcibly.

Description

CIFRRF DEVICE FOR ARCAS Dl = PURLIC PHONES

OBJECT OF THE INVENTION

The present invention relates to a closing device, especially designed for public telephone coffers, but also usable for any other container of securities that requires similar benefits and that can be subjected to vandalism effects tending to steal its contents.

The object of the invention is to achieve a high security closure, difficult to violate, and with a kinematic opening chain that, in case of eventual breakage thereof, causes the device to lock in a closed situation, thus optimizing the device safety .

BACKGROUND OF THE INVENTION

Telephone booths, due to their usual location on public roads, constitute points of attraction to be subjected to acts of vandalism in order to appropriate collection.

The defense against these acts has led to structuring the public telephones in two clearly differentiated parts or components, an operative or functional part, corresponding to the telephone itself, and an ark lower than that accessed by the currencies after passing through the corresponding selector -counter, said ark being duly shielded or reinforced to withstand the external attacks to which it may be subjected.

The "weak point" of these coffers is in the closing of the same, since by means of appropriate leverage the door of the same can be forced through the hinge line or through the lock. The breakage of any one of these elements implies direct access to the interior of the ark, since such breakage brings

SUBSTITUTE SHEET (RULE 26) I get the cancellation of the closure, to which we must also add the permanent risk that vandalism acts on the cabin materialize in the introduction of objects in the lock cylinder, rendering the master key of periodic collection of the collection inoperative.

DESCRIPTION OF THE INVENTION

The closure that the invention proposes solves in a fully satisfactory manner the exposed problem, on the one hand determining a security closure, unattainable from the outside and practically impossible to manipulate, with a hinge system also difficult to attack, and on the other hand keeping hidden The view of the users the situation of the closing device and the hinged means themselves, with the particularity in addition to the eventual breakage in the kinematic chain of the closing mechanism, this automatically tends, by itself, to the situation of blockage or inaccessibility inside the ark.

For this, and more specifically, the closure is constituted from a small electric motor-reducer, which can be operated remotely by an alpha-numeric key and, duly in solidarity with the body of the ark, acts on a connecting rod that transmits the movement to an intermediate transmission piece, which in turn transmits it to at least one closing axis, preferably two, which, depending on their angular position, block or not a pair of solidarity hooks secured in the ark lid. For this, and more specifically, the aforementioned closing axes have at their ends a pair of flat, parallel and opposite chamfers, which allow their introduction into the corresponding hook, in a certain position for said axis, but which determine the blocking of said hook when they rotate 90 °. This 90 ° rotation occurs automatically during the closing maneuver, since the aforementioned closing hooks have an extension in the manner of their mouth as a runner on which the corresponding axis falls, forcing the latter to rotate against a spring to adopt the position of access to the interior of the hook, so that once said access is concluded, the said spring is recovered and causes the axis to rotate towards the position of definitive blocking. These same springs are intended, in the event of a break in the

SUBSTITUTE SHEET (RULE 26) kinematic chain of the closure, for a vandalism or for another cause, that the axes rotate to a limit situation of confrontation of a pin, housed diametrically in each of said axes, with a hole of the support or base body, towards which it is projected by an axial spring that assists, causing the definitive blockage of the closing axes, in turn in a situation of blocking for the closing hooks of the door.

For the hinges of the door two pieces are used, a hook and a stop, respectively connected to the inner face of the door and to the inner face of the corresponding side wall of the main body, both pieces being related by the hinge itself, located also internally and inaccessible from the outside.

DESCRIPTION OF THE DRAWINGS

To complement the description that is being made and in order to facilitate the interpretation of the characteristics of the invention, in accordance with a preferred example of practical realization thereof, the following figures are attached where, for illustrative and non-limiting purposes, the following is represented :

Figure 1.- Shows a schematic representation in side elevation and in section of a closure for public telephone coffers made in accordance with the object of the present invention.

Figure 2.- Shows, according to a representation similar to the previous figure, a plan view and also in section, according to the line A-B of Figure 1.

Figure 3.- It shows two positions of the closing axis or bolt with respect to the corresponding closing hook, in the opening cycle.

Figure 4.- Finally, it shows five sequences of the elements represented in the previous figure, corresponding to the closing cycle of the bolt.

SUBSTITUTE SHEET (RULE 26) PREFERRED EMBODIMENT OF THE INVENTION

In the figures described, an ark for conventional public telephones has been represented, based on a body (1) and a door (2), which can be provided inside a coin-receiving chest, with its corresponding slot, so that the maneuvers of collecting the full chest to be replaced by another vacuum will be carried out without the operator having access to its contents.

The body (1) of the ark jointly receives a support (3) in the vicinity of its mouth and in opposition to its hinge line, an electric motor-reducer (4) being attached to said support (3) next to a housing (5) ), a screw (6), a nut (7) and a cover (8), so that the nut (7) acts as an eccentric for driving a connecting rod (9) that is attached to the nut (7) ) by means of a pin (10).

The connecting rod (9), by means of another pin (11), provides a rotating movement to an intermediate transition piece (12) that plays in a cylindrical housing of the support (3) and which, by means of keys (13), transmits its own movement rotating to a pair of closing shafts (14-14 ') that are opposed and are intended to be interlocked, through their free ends, in two closing hooks (15-15') in solidarity with the door (2).

The shafts (14-14 ') have at their free end two flat and parallel chamfers (16), while the hooks (15-15') have a cylindrical housing (17), with a throttle (18), so that the housing (17) has a diameter coinciding with that of the shaft (14-14 '), while its strangulated mouth (18) is in turn consistent with the spacing between chamfers (16) of the shaft (14-14'). In this way, during the opening maneuver that is carried out by supplying the shafts (14-14 ') with a rotary movement of 90 ° by means of the motor reducer (4), these pass from the position shown in the first sequence of Figure 3, corresponding to the closure, to the opening position shown in the second sequence of said figure.

SUBSTITUTE SHEET ^ RULE 26) - " In this position, the door (2) is projected outwards by the effect of an ejector (19) acting on one of the hooks (15 ') with the collaboration of an expansion spring (20), ejector (19) that its travel is limited by a stop (21) materialized in a set of nut and locknut.

The axes (14-14 ') always tend to the angular closing position, shown in the first sequence of Figure 3, by effect of respective torsion springs (22-22') established between them and the support (3), as observed especially in figure 1.

During the closing maneuver of the door (2), an extension (23) of which the closing hooks (15-15 ') are provided impact on one of the chamfers (16) of the corresponding shaft (14-14') , as shown in the first sequence of Figure 4, forcing said axis (14-14 ') to rotate, as shown by the following three sequences, to a limit situation in which the chamfers (16) adopt a parallel position with respect to the middle plane of the mouth (18), in which the axes (14-14 ') penetrate the housings (17), and the respective springs (22-22') cause their automatic rotation until Ia blocking position shown in the last sequence of figure 4.

The aforementioned springs (22-22 ') also act on the respective axes (14-14') causing them to rotate in the event of a breakage in the described kinematic chain, that is, before a break in any of the pieces of transmission cited. In this case, the springs (22-22 ') lead said axes (14-14') to a limit situation in which pins (24), established diametrically within said axes and permanently requested by respective springs (25 ), face two holes (26) of the support (3) and penetrate the latter blocking the shafts (14-14 ^' ) that are inserted in the closing hooks (15-15').

As a complement to the described structure, a pair of hooks (27) are rigidly fixed to the inner face of the door (2) and in the lateral area, opposite to that of the closing hooks (15-15 '), and on the inner face of the inner body (1) of the respective ark

SUBSTITUTE SHEET (RULE 26) stops (28), which cause a tongue and groove coupling between these elements, as can be seen in Figure 2, which determine a high degree of safety regarding the closure of the ark in this area, with hooks (27) and stops (28) related to each other by hinges (29) based on articulated links, clearly visible in Figure 2.

As can be deduced from the above and as previously mentioned, the device offers a completely smooth external surface, without the user being able to see either the hinged means or the opening means, which gives it a high degree of security, which is enhanced by the solid fixation described in four points near the vertices of the door.

SUBSTITUTE SHEET (RULE 26)

Claims

1. Closing device for the ark, preferably for public telephones, said ark comprising a body (1) provided with a front opening to which a door (2) is attached, preferably hinged, characterized in that it incorporates a support (3) integral with the body (1) of the ark, on which an electric motor-reducer (4) is mounted to whose output shaft a screw (6) is attached, acting on a nut (7) connected to one end of a connecting rod (9) by a first pin (10), the opposite end of said connecting rod (9) being connected by a second pin (1 1) to a transition piece (12) connected by at least one key (13), which transmits its rotating movement , at least one axis (14-14 ') perpendicular to the connecting rod (9) and said at least one axis (14-14 ^' ) being provided with coupling and decoupling means to at least one closing element (15-15 ') which is integral to the inner face of the door (2) of the ark and perpendicular to said at least u n axis

(14-14 ^' ).

2. Device according to claim 1, characterized in that said at least one closing shaft (14-14 '), preferably two, incorporates two flat and parallel chamfers (16) at its free end.

Device according to claims 1 and 2, characterized in that said closing element (15-15 ^' ) is a closing hook (15-15'), preferably two, which incorporates a cylindrical housing (17), of corresponding diameter with that of the closing shaft (14-14 '), with a throttle opening (18) whose width coincides with the spacing between chamfers (16) of the shaft (14-14'), so that depending on the angular position of said chamfers (16) with respect to the mouth (18) of the hook (15-15 '), these are locked with respect to the closure support.

4. Device according to claim 3, characterized in that the opening (18) of the closing hook (15-15 ') has an extension (23) on which

SUBSTITUTE SHEET (RULE 26) stops one of the chamfers (16) of the closing shaft (14-14 ') when the door (2) tilts towards the closing situation, causing a rotation of said shaft (14-14') against the torsion of a spring (22-22 ') established between each axis (14-14') and the support (3) of the closing device.

5. Device, according to previous claims, characterized in that it incorporates a stop (19), retractable against the tension of a spring (20), which in closing situation acts on at least one of the closing hooks (15 ') of The door (2), tending to the automatic opening or tilting thereof when the release of at least said hook (15-15 ') by the closing shaft (14-14') occurs.

Device according to previous claims, characterized in that the closing shaft (14-14 ') incorporates a diametral housing in which a pin (24) with a spring (25) is established, so that in the event of a breakage of any of the elements of the closing device and due to the effect of the torsion spring (22) disposed on the shaft (14-14 ^' ), said pin (24) faces a hole (26) made in the support (3), when which accesses, blocking in an angular sense the closing axis (14-14 '), thus maintaining the blocking situation between the axis (14-14 ^' ) and the corresponding closing hook (15-15 ').

7. Device, according to previous claims, characterized in that it acts in combination with hinged means of the door (2) of the ark constituted by at least one hook (27) and a stop (28), joined together by hinges and tongue and groove coupled in closing situation, being located inside the ark.

= SUBSTITUTE SHEET (RULE 26)