EP3128107A1

EP3128107A1 - A double-lock handle

Info

Publication number: EP3128107A1
Application number: EP16181378.7A
Authority: EP
Inventors: Marco CECCONI
Original assignee: DKC Europe Srl
Current assignee: DKC Europe Srl
Priority date: 2015-08-06
Filing date: 2016-07-27
Publication date: 2017-02-08
Also published as: ITUB20152960A1

Abstract

A double-lock handle (10) comprising a grippable activating lever (30) rotatably associated to a support body (20), a first lock (50) able to releasably constrain the activating lever (30) to an intermediate body (60) and a second lock (70) able to releasably constrain the intermediate body (60) to the support body (20).

Description

TECHNICAL FIELD

The present invention relates to a double-lock handle, and more in particular to a double-lock handle for opening and closing cabinets or closets for example for containing electrical material.

PRIOR ART

As is known, cabinets and closets for containing electrical material comprise a box body closed by one or more hatches, each provided with at least a handle and a lock for securely closing and opening the cabinet.
Handles are known which are provided with a double lock, for example with different profiles, so that a same hatch door can be locked and unlocked using more than one key having different profiles. However, these known-type handles not only have a greater size than traditional handles having one single profile, and therefore require a dedicated housing seating in the hatch door that is of an appropriate size, they are also are not openable independently by the different keys, but only by the two or more keys; so to be opened they require the unlocking of both keys. For example, these handles are applicable in cabinets containing electrical material which must be controlled by two people at the same time.
Examples of handle and locks are shown in prior art documents D1: EP 1 264 949 , D2: EP 1 253 266 , D3: DE 22 13 790 , D4: DE 202 15 196 and D5: DE 90 04 756 .
An access requirement to electrical equipment contained in these cabinets however might be enabling the opening and closing of the hatch door independently by a plurality of people, for example the manager of the service (for example the electrical service or another) and the user of the service.
An aim of the present invention is to satisfy the above-described need with a solution that is simple, rational and relatively inexpensive and at the same time enables realising a handle which does not require dedicated housing seatings or having shapes that are different with respect to the housing seatings predisposed for housing a single-lock handle.
The aims are attained by the characteristics of the invention as reported in the independent claim. The dependent claims delineate preferred and/or particularly advantageous aspects of the invention.

DESCRIPTION OF THE INVENTION

In particular, the invention relates to a double-lock handle comprising a grippable activating lever rotatably associated to a support body, a first lock able to releasably constrain the activating lever to an intermediate body and a second lock able to releasably constrain the intermediate body to the support body.
Advantageously, when the first lock is unblocked, the activating lever can be activated alone while the intermediate body remains constrained, by means of the second lock, to the support body, and when the second lock is unblocked, the activating lever and the intermediate body, constrained to one another by means of the first lock, can be activated in rotation together, as a single body.
With this solution, the handle can be actuated for opening a hatch door to which it is associated by means of two locks, independent of one another, simply and rationally.
In an aspect of the invention, the support body comprises a hollowed part in which the activating lever and the intermediate body are substantially snugly housable.
With this solution, the handle, while having a double independent activation, has no increased size with respect to known handles, with undoubted advantages in terms of production thereof and of the hatches they are destined for, which in fact do not require changing according to the handle that is mounted on them.
In a further aspect of the invention, the activating lever is rotatably associated to the support body with respect to two rotation axes, of which a first rotation axis and a second rotation axis perpendicular to the first rotation axis.
With this solution, the handle is particularly suited to those applications, for example road or public applications, in which the handle must be difficult to tamper with.
The activating lever can advantageously be activatable in oscillation about the first rotation axis between a lowered position, wherein it is housed internally of the hollowed part and a raised position, in which it is at least partly raised from the hollowed part.
Also, the activating lever can be connected to a blocking group able to block a hatch door in a closed position thereof and is activatable in oscillation about the second rotation axis for activating the blocking group.
In a further aspect of the invention, the activating lever can comprise an elongate body provided with a first end portion hinged to the support body and a second end portion removably constrained to the intermediate body by means of the second lock.
With this solution the handle is easy to realise, functional and economical.
In a further aspect of the invention, the intermediate body can comprise a first portion able to be superposed on the second end portion of the activating lever and a second portion projecting from the activating lever and able to prolong the activating lever constrained thereto by means of the first lock.
With this solution, when the intermediate body is constrained to the activating lever it defines a portion thereof which does not disturb the gripping and activating of the activating lever.
In a further aspect of the invention, the first lock and the second lock can have different profiles.
With this solution independent opening and closing of the handle is possible by one or more users using keys having different profiles, in this way making access to the compartment closed by the hatch door to which the handle is fixed possible for different people, such as for example a final user of an electrical energy supply service and an operator of a distribution service supplier.
A further aspect of the invention relates to a hatch door for closing cabinets, for example, destined to contain electrical equipment, which comprises:

an infill panel provided with a hollow seating, and
a handle, as described in the foregoing, in which the support body is inserted in the seating and fixed to the infill panel.

BRIEF DESCRIPTION OF THE DRAWINGS

Further characteristics and advantages of the invention will emerge from a reading of the following description, provided by way of non-limiting example with the aid of the figures illustrated in the appended tables of drawings.

Figure 1 is a front view of a first embodiment of a handle according to the invention applied to a hatch door.
Figure 2 is a rear axonometric view of the hatch door of figure 1.
Figure 3 is a section view along section line III-III of figure 1.
Figure 4 is a section view along section line IV-IV of figure 1.
Figure 5 is a front view of figure 1 with the activating lever and the intermediate body in raised position (closure).
Figure 6 is a section view along section line VI-VI of figure 5.
Figure 7 is a view from VII of figure 5.
Figure 8 is a front view of figure 1 with the activating lever in raised position (closure).
Figure 9 is a section view along section line IX-IX of figure 8.
Figure 10 is a view from X of figure 8.
Figure 11 is a front view of a second embodiment of a handle according to the invention applied to a hatch door.
Figure 12 is a section view along section line XII-XII of figure 11.
Figure 13 is a front view of a third embodiment of a handle according to the invention applied to a hatch door.
Figure 14 is a section view along section line XIV-XIV of figure 13.
Figure 15 is a front view of a fourth embodiment of a handle according to the invention applied to a hatch door.
Figure 16 is a section view along section line XVI-XVI of figure 15.

BEST WAY OF CARRYING OUT THE INVENTION

With particular reference to the figures, reference numeral 10 denotes in its entirety a handle for opening a hatch door 100 for closing a cabinet.
In particular, the cabinet can contain electrical equipment, such as low-tension electrical panels, counters or like electrical equipment, and is generally installed in external environments, such as for example in proximity of a roadside, installed in external walls or the like.
The hatch door 100, like the cabinet, can be made of a plastic or metal material.
The hatch door 100 is realised by a substantially flat infill panel hinged to the cabinet, as is known to the technical expert in the sector, and has an internal side (visible in figure 2) which faces internally of the compartment and an external side (visible in figure 1) which remains in view from outside of the cabinet when the hatch door 100 is closed.
The hatch door 100 generally comprises a hollow seating 101 (visible in figure 2), for example having an elongate shape, such as for example rectangular (with sharp or rounded edges) or elliptical or the like, in which a handle 10 can be housed.
The seating 101 for example is defined by a through-hole in the entire thickness of the hatch door, for example in proximity of a side of the hatch door opposite the side thereof hinged to the cabinet of the hatch door.
The handle 10 can be of a flush type, i.e. inserted at least partially in the direction of a thickness thereof internally of the hollow seating 101, so as to be substantially contained, at least partially, within the thickness of the hatch door 100.
The handle 10 comprises a support body 20, for example elongate, which can be inserted, substantially snugly, internally of the seating 101 of the hatch door 100 and can be fixed, for example permanently, to the hatch door itself.
The support body 20 comprises a broadened border 200, for example having an annular shape, which can externally border the seating 101 and rest on the external side of the hatch door 100 and is substantially fixed thereto.
The broadened border 200 can have a variable thickness, for example decreasing from the centre towards the periphery, defining an inclined connecting surface between the top thereof towards the external side of the panel 100.
The broadened border 200 in practice increases the depth of the hatch door 100 at the seating 101.
The support body 20 is in practice conformed substantially as a tub and defines a hollowed part 201 (elongate) with a concavity facing towards the external side of the panel 100, i.e. towards the outside of the cabinet (for example substantially having a same shape as the seating 101 (having slightly smaller dimensions).
The hollowed part 201, at an end portion of the support body 20, for example the upper end in the figures, has a first compartment 21 open at a top thereof (at the wall of the support body 20 located at the external side of the hatch door 100) and the bottom of which has a cylindrical cavity 210, for example a through-cavity.
The hollowed part 201, at an opposite end portion of the support body 20, for example the lower end in the figures, has a second compartment 22 open at a top thereof and the bottom of which comprises, for example a through-hole 220.
The handle 10 further comprises a mobile activating lever 30, grippable by a user, which is movably associated to the support body 20, for example hinged thereto as will be more fully described in the following.
The activating lever 30 is essentially composed of a substantially rigid elongate body, which has a substantially complementary shape to a shape of the hollowed part 201 and can be inserted, substantially snugly, internally of the portion of the hollowed part.
The elongate body of the activating lever 30 preferably exhibits a shorter length than a length of the hollowed part 201, for example by about 1-2 cm.
The activating lever 30 of the handle 10 can be encased in the support body 20, i.e., when the activating lever 30 is accommodated internally of the hollowed part 201, the hollowed part 201 and the broadened border 200 at least partially laterally cover the activating lever 30 on at least three sides thereof, so that the activating lever 30 cannot easily be embracingly gripped when inserted in the hollowed part 201.
The activating lever 30 is inserted in the hollowed part 201 so that the lateral play is contained between 0.5 mm and 1 mm.
In this way, the possibility of tampering with the handle 10, for example for inserting levers or the like, is extremely limited, when not entirely precluded.
The activating lever 30 is hinged to the support body 20 by a hinge 40, for example provided with two rotation axes, of which a first rotation axis parallel to the lie plane of the hatch door 100 (i.e. parallel to the bottom of the support body 20) and a second rotation axis perpendicular to the lie plane of the hatch door itself (i.e. perpendicular to the bottom of the support body 20).
In this way, the activating lever 30 can oscillate with respect to the hatch door 100 about the rotation axes, as will be more fully described in the following.
The hinge 40 comprises a cylindrical body 41, for example having a variable section along the central axis thereof, which is rotatably inserted, with respect to the central axis thereof which in fact coincides with the second rotation axis of the hinge 40, internally of the cylindrical cavity 210 of the support body 20 and is blocked there axially.
At least a lug 42 is defined at the top of the cylindrical body 41, which lug 42 is provided with a transversal cylindrical hole 43 with respect to the central axis of the cylindrical body 41, for example incident to the central axis and perpendicular thereto.
The activating lever 30, i.e. the elongate body thereof, in turn comprises, for example at the upper end thereof, a fork 32 which is fixed to the lug 42 by means of a rotation pin rotatably inserted internally of the cylindrical body 43, which defines the first rotation axis of the activating lever 30.
In practice, the activating lever 30 is activatable in oscillation about the first rotation axis between a lowered position, wherein it is housed internally of the hollowed part 201 (substantially coplanar to the hatch door 100) and a raised position (see figures 5-10), in which the distal end from the first rotation axis exits from the hollowed part 201 and is therefore raised with respect to the hatch door 100.
Further, when (and only when) the activating lever 30 is in the above-mentioned raised position, the activating lever 30 is operable in oscillation (or rotation) with respect to the second rotation axis between a closed position, in which the activating lever 30 is superposed on the hollowed part 201 (i.e. aligned therewith with respect to the rotation trajectory thereof about the first rotation axis) and an open position, in which the activating lever 30 is angularly offset with respect to the hollowed part 201 (i.e. the longitudinal axis of the activating lever 30 forms, with the longitudinal axis of the hollowed part 201, an angle that is not zero, for example acute, a right-angle or an obtuse angle, according to requirements).
A blocking group (visible in figure 2) is associated to the hinge 40 of the hatch door 100 in a position of closure thereof, in which it closes the internal compartment of the cabinet, which blocking group is operable selectively in opening and closure by activation in rotation of the activating lever 30, for example by rotating the activating lever 30 about the second rotation axis.
In practice, the blocking group is configured so that when the activating lever 30 is in the closed position the blocking group engages the cabinet (for example the border thereof which surrounds the hatch door 100), preventing the opening of the internal compartment of the cabinet by the hatch door 100, and when the activating lever 30 is in the open position thereof the blocking group disengages from the cabinet, enabling access to the internal compartment of the cabinet by opening the hatch door 100.
For example, the blocking group comprises a plate 44 fixed to an end of the cylindrical body 41 which projects externally from the cylindrical cavity 210 (towards the cabinet, i.e. towards the internal side of the hatch door 100), which plate 44 is positioned, for example, parallel to the support body 20. Abutting elements are associated to the plate 44 (in the example three in number) able to engage respective abutting zones separated from one another defined in the cabinet of the border around the hatch door 100, for retaining the hatch door 100 in the closed position thereof.
In practice, an elongate tab 450 is associated to the plate 44, which tab 450 extends laterally of the plate so as to engage a rear edge of the lateral flank of the cabinet (of the border passing along the hatch door 100 thereof), so as to prevent the opening of the hatch door 100 when the activating lever 30 is in the closed position thereof.
Two relay rods (guided by eyelets fixed to the hatch door 100 as known to the technical expert in the sector) can also be hinged on the plate 44, substantially squared with respect to the tab 450, which two relay rods 451 are parallel to the lie plane of the hatch door 100 by the internal side thereof, able to slide with respect to the hatch door 100 and to insert frontally in two seatings fashioned in the upper and lower flank of the cabinet so as to prevent the opening of the hatch door 100 when the activating lever 30 is in the closed position thereof.
In practice, using the tab 450 and the relay rods 451 (which define the three abutting elements) the hatch door 110 is closed at three points, which guarantees perfect adherence of the hatch door 100 to the cabinet and a secure closure of the cabinet.
The activating lever 30 further comprises a first housing seating 33 (substantially cylindrical, for example having a variable section along the axis, with the axis perpendicular to the surface of the housing lever 30 opposite the support body 20) for example realised at an end portion of the activating lever 30 opposite the end thereof hinged to the support body 20, which is open at the surface of the housing lever 30 opposite the support body 20.
For example, the first housing seating 33 comprises a through-opening 330, for example made on the bottom.
A first lock 50 is contained and axially blocked in the first housing seating 33, substantially by friction force.
The first lock 50 comprises a cylinder activatable in rotation by a key (not shown) and a first keyway slot 51 provided with a first profile in which the key can be inserted (which key has the same profile as the first keyway slot) for activating the cylinder in rotation. The rotation of the cylinder is such as to move a first bolt 52 (cam) laterally, which is mobile internally of the through-opening 330 of the housing seating 33 of the activating lever 30 between two predefined endrun positions.
For example, the first bolt 52 is activatable by the key between a first endrun position (see figures 9-10), in which the first bolt 52 is aligned with respect to the longitudinal axis of the activating lever 30, and a second endrun position (see figures 4 and 6-7), in which the first bolt 52 is inclined (for example by an acute or right-angle) with respect to the longitudinal axis of the activating lever 30, for example it is at a right-angle thereto.
For example, the first profiling of the first keyway slot 51 can be of a European type (see figures 1,3-10 and 15-16) or a pin-tumbler key (Yale type) or, alternatively, the first profiling of the first keyway 51 can be of the triangular or star-shaped type (see figures 11-14).
The handle 10 preferably comprises an intermediate body 60, which is removably associated to the activating lever 30 and to the support body 20, as will be more fully described in the following.
In practice, the intermediate body 60 is constrained removably to the activating lever 30 by means of the above-mentioned first lock 50.
In practice, the first lock 50 is able to releasably constrain the activating lever 30 to the intermediate body 60.
The activation in rotation of the cylinder of the first lock 50, between the first endrun position and the second endrun position, brings the first bolt 52 selectively to engage or disengage to or from the intermediate body 60, respectively for reciprocal blocking of the activating lever 30 with the intermediate body 60 or the reciprocal unblocking thereof, as will be more fully described in the following.
The intermediate body 60 is substantially rigid and has a complementary shape to a shape of a portion of the hollowed part 201, left free by the activating lever 30. In practice, the intermediate body 60 can be inserted, substantially snugly, internally of the hollowed part 201, together with the activating lever 30. The intermediate body 60 preferably has a shorter length than the length of the hollowed part 201 and is such as to fill the longitudinal portion of the hollowed part 201 (1-2 cm long) left free by the activating lever 30.. In practice the activating lever 30 and the intermediate body 60 are conformed in such a way that together they totally fill the hollowed part 201.
The intermediate body 60 comprises a longitudinal body with has a first portion 601 of the longitudinal development thereof having a smaller thickness, which is able to superpose at least partially on the activating lever 30, for example interposed between the activating lever 30 and the support body 20, and a second portion 602, having a greater thickness, which can fill the longitudinal portion of the hollowed part 201 (1-2 cm long) left free by the activating lever 30.
The activating lever 30 and the second portion 602 of the intermediate body 60 can be flanked, for example aligned along the longitudinal axis of the activating lever 30, so that the second portion 602 of the intermediate body 60, when constrained to the activating lever 30, axially extends the activating lever 30 on the opposite side to the end of the activating lever hinged to the support body 20.
The activating lever 30 and the intermediate body 60 of the handle 10, in practice, are overall destined to be encased in the support body 20, i.e. accommodated internally of the hollowed part 201 so that the hollowed part 201 and the broadened borer 200 at least partially laterally cover the activating lever 30 on at least three sides thereof (with the exception of the side in which the activating lever 30 flanks the second portion 602 of the intermediate body 60), so that the activating lever 30 and/or the intermediate body 60 cannot easily be gripped when inserted in the hollowed part 201.
The activating lever 60 is inserted in the hollowed part 201 so that the lateral play is contained between 0.5 mm and 1 mm.
The first portion 601 of the intermediate body 60 comprises a profiled hole 61, for example passing in the direction of the thickness (with a through-axis perpendicular to the surface of the intermediate body 60 facing on the opposite side with respect to the support body 20), which has a broadened portion, for example elongate in a parallel direction to the longitudinal axis of the activating lever 30 (and the hollowed part 201), and a tapered portion, for example squared with the broadened portion.
In practice, the profiled hole 61 can be axially aligned (superposed) with the through-opening 330 of the housing seating 33 of the activating lever 30, so that the first bolt 52, when inserting internally of the profiled hole 61, can releasably constrain the intermediate body 60 to the activating lever 30.
In practice, the first bolt 52, when positioned in the second endrun position thereof, can enter the profiled hole 61, for example via the broadened portion thereof, while when it is positioned in its first endrun position the profiled hole, i.e. the tapered portion thereof, prevents axial de-insertion thereof (with respect to the rotation axis of the first bolt).
The intermediate body 60, for example the first portion 601 and the second portion 602, further define a shaped constraint, for example a sliding coupling, with the activating lever 30, so that by blocking the extraction of the first bolt 52 with respect to the profiled hole 61 the intermediate body 60 is substantially blocked solidly with the activating lever 30, while by enabling the extraction of the first bolt 52 with respect to the profiled hole 61, the activating lever 30 is free to oscillate with respect to the second rotation axis independently of the intermediate body 60 which can remain fixed to the support body 20, as described in the following.
The intermediate body 60, for example at the second portion 602, further comprises a second housing seating 62, which is open at the surface of the intermediate body 60 opposite the support body 20.
For example, the second housing seating 62 comprises a through-opening 620, for example made on the bottom.
The intermediate body 60 is further releasably constrained to the support body 20 by means of a second lock 70, which is located for example internally of the second housing seating 62.
In a first example, illustrated in figures 1,3-12, the second lock 70 is of the padlock type.
In particular, from the bottom of the support body 20, for example at the second compartment 22 position, an appendage 24 (substantially cylindrical) rises towards the external side of the hatch door 100, the appendage 24 being for example fixed to the support body 20 by means of a screw that can be inserted internally in the hatch door, in the through-hole 220.
The appendage 24 exhibits a length such as to project axially beyond the upper edge of the hollowed part 201 (for example by about 1-2 cm).
A through-hole 240 is made in the end portion of the appendage 24 which projects beyond the hollowed part 201, which through-hole 240 has an axis passing transversally with respect to the rising axis of the appendage 24. The appendage 24 is insertable with play internally of the second housing seating 62 of the intermediate body 60; in practice the appendage 24 can insert axially internally of the through-opening 620 and the second seating 62, so that the end portion thereof provided with the hole 240 projects beyond the intermediate body 60.
The hole 240 can be engaged by an eyelet of a padlock 71 (shown only in figure 1), which is provided with a second lock 70.
In practice, by activating the second lock 70 (having a second keyway in turn provided with a respective second profiling) using an appropriate key it is possible to switch the eyelet of the padlock 71 between a closed configuration and an open configuration, so as to be able to selectively insert and de-insert the eyelet of the padlock 71 to and from the hole 240 and block or unblock the de-insertion of the appendage 24 from the second housing seating 62, respectively blocking or unblocking the intermediate body 60 to or from the support body 20.
The position of the hole 240 with respect to the appendage 24, the thickness of the second portion 602 of the intermediate body 60 and the diameter of the element which constitutes the eyelet of the lock 71 are configured so that, when the lock 71 is inserted in the hole 240 and the intermediate body 60 is constrained to the support body 20, the intermediate body 60 is substantially blocked axially along the appendage 24 (i.e. there is only a very small amount of play for the axial sliding of the intermediate body 60 on the appendage 24).
If the user does not wish to use the second lock 70 it is possible to transform the handle 10 into a single-lock handle simply by blocking, for example using a screw or another blocking means, the intermediate body 60 to the support body 20, for example to the appendage 24.
In an alternative embodiment illustrated in figures 13-16, a second lock 70 can be contained and axially blocked in the second housing seating 62 (alike to the first lock 50), substantially by friction force.
The second lock 70, in this case, can comprise a cylinder activatable in rotation by a key (not shown) and a second keyhole slot 72 provided with a second profiling in which the key can be inserted (which key has the same profile as the first keyhole slot) for activating the second cylinder in rotation. The rotation of the cylinder is such as to move a second bolt 73 laterally, which is mobile internally of the through-opening 620 of the second housing seating 62 of the activating lever 60 of the intermediate body 60, between two predefined endrun positions.
For example, the second bolt 73 is activatable by the key between a first endrun position, in which it is located posteriorly of an appendage of the support body 20 so as to prevent extraction of the intermediate body 60 from the hollowed part 201, and a second endrun position, in which it frees the appendage, leaving the intermediate body 60 free to be extracted from the hollowed part 201.
The intermediate body 60, for example the first portion 601 and the second portion 602, further define a form constraint, for example a sliding coupling, with the hollowed part 201, so that by blocking the extraction of the second bolt 73 with respect to the appendage of the support body 20 the intermediate body 60 is substantially blocked solidly with the support body 30, while by enabling the extraction of the second bolt 73 with respect to the appendage of the support body 20, the activating lever 60 is free to be extracted (oscillate with respect to the second rotation axis solidly with the activating lever 30) from the hollowed part 201.
For example, the second profiling of the second keyway slot 71 can be of a European type or a pin-tumbler key (Yale type) or, alternatively, the second profiling of the second keyway 70 can be of the triangular or star-shaped type (see figures 13-16).
For example, the first lock 50 and the second lock 70 are activatable by different keys, for example with different profiles.
In particular, the first and the second lock 50 and 70 can be of different types (Yale-type profiled key, or triangular key or padlock) or can be of the same type, but with different profiles (for example both padlocks or both Yale keys or both triangular, but openable by different keys).
It is further possible also for the first lock 50 to be of the padlock type, as described above.
In the light of the above, the functioning of the handle 10 is as follows.
In the closed configuration of the hatch door 100 (see figures 1-4 and 11-16) the intermediate body 60 is constrained, by the second lock 70, to the support body 20 and is located internally of the hollowed part 201, and the activating lever 30 is constrained, by the first lock 50, to the intermediate body 60 and is located internally of the hollowed part 201.
In this configuration, the handle 10 keeps the hatch door 100 solidly closed and the internal compartment is substantially inaccessible.
Should it be necessary to open the hatch door 100 it is possible to act alternatively either on the first lock 50 or the second lock 70 so as to unblock the handle 10, i.e. in order to enable the rotation of the activating lever 30 with respect to the first and the second rotation axis, as will be described in the following.
In practice, when in possession of the key activating the second lock 70 (see figures 5-7) it is possible to unblock the second lock (for example by removing the padlock 71) and, when doing this, the activating lever 30 and the intermediate body 60, constrained to one another by means of the first lock 50, can be activated in rotation together, as a single body.
In practice, to open the hatch door 100 it is possible to raise the activating lever 30 from the lowered position to the upper position, which activating lever 30 takes with it the intermediate body 60 (as visible in figures 5-7). When the activating lever 30 (and the intermediate body 60) is in the raised position it is possible to rotate it from the closed position to the open position, in which the blocking group disengages the cabinet and the hatch door 100 can be opened to afford access to the internal compartment of the cabinet.
To close the hatch door 100 the same operations can be performed in reverse order.
In practice, when in possession of the key activating the first lock 50 (see figures 8-10) it is possible to unblock the first lock (see figures 8-10) and, when doing this, the activating lever 30 can be activated (alone) while the intermediate body 60 (de-constrained from the activating lever 30) remains constrained, by means of the second lock 70, to the support body 20.
In practice, to open the hatch door 100 it is possible to raise (only) the activating lever 30 from the lowered to the raised position and when the activating lever 30 is in the raised position it is possible to rotate the activating lever 30 from the closed position to the open position, in which the blocking group disengages the cabinet and the hatch door 100 can be opened to afford access to the internal compartment of the cabinet.
To close the hatch door 100 the same operations can be performed in reverse order.
The invention as it is conceived is susceptible to numerous modifications, all falling within the scope of the inventive concept.
Further, all the details can be replaced with other technically-equivalent elements.
In practice the materials used, as well as the contingent shapes and dimensions, can be any according to requirements, without forsaking the scope of protection of the following claims.

Claims

A double-lock handle (10) comprising a support body (20) and a grippable activating lever (30) rotatably associated to the support body (20), a first lock (50) able to releasably constrain the activating lever (30) to an intermediate body (60) and a second lock (70) able to releasably constrain the intermediate body (60) to the support body (20), wherein when the first lock (50) is unblocked, the activating lever (30) can be activated alone while the intermediate body (60) remains constrained, by means of the second lock (70), to the support body (20), and wherein when the second lock (70) is unblocked, the activating lever (30) and the intermediate body (60), constrained to one another by means of the first lock (50), can be activated in rotation together, as a single body.
The handle (10) of claim 1, wherein the support body (20) comprises a hollowed part (201) in which the activating lever (30) and the intermediate body (60) are substantially snugly housable.
The handle (10) of any one of the preceding claims, wherein the activating lever (30) is rotatably associated to the support body (20) with respect to two rotation axes, of which a first rotation axis and a second rotation axis perpendicular to the first rotation axis.
The handle (10) of claims 2 and 3, wherein the activating lever (30) is activatable in oscillation about the first rotation axis between a lowered position, wherein it is housed internally of the hollowed part (201) and a raised position, in which it is at least partly raised from the hollowed part.
The handle (10) of claim 3 or 4, wherein the activating lever (30) is connected to a blocking group (450,451) able to block a hatch door (100) in a closed position thereof and is activatable in oscillation about the second rotation axis for activating the blocking group (450,451).
The handle (10) of any one of claims from 3 to 5, wherein the activating lever (30) comprises an elongate body provided with a first end portion hinged to the support body (20) and a second end portion removably constrained to the intermediate body (60) by means of the second lock (70).
The handle (10) of claim 6, wherein the intermediate body (60) comprises a first portion (601) able to be superposed on the second end portion of the activating lever (30) and a second portion (602) projecting from the activating lever (30) and able to prolong the activating lever (30) constrained thereto by means of the first lock (50).
The handle (10) of claim 7, wherein the second portion (602) axially prolongs the elongate body of the activating lever (30).
The handle (10) of any one of the preceding claims, wherein the first lock (50) and the second lock (70) exhibit different respective profiling.
A hatch door (100) for closing cabinets destined to contain electrical equipment, which comprises:
- an infill panel provided with a hollow seating (101), and

- a handle (10), according to any one of the preceding claims, wherein a support body (20) of the handle (10) is inserted in the seating (101) and is fixed to the infill panel.