Handle safety assembly for industrial machine or facility

Abstract

The handle safety assembly comprises a safety switch (2), an actuator device (4) and an anchoring bracket (6), said actuator device comprising a slide (7) slidably mounted on the inlet in an actuation direction (X) and having an actuator device (5) adapted to interact with the safety switch (2) upon an approach / exit movement of the slide (7) relative to the safety switch (2), the anchoring bracket (6) is used for mounting the safety switch (2) to a fixed part of the access and is provided with fixing means (11, 12) for the safety switch (2). The anchoring bracket (6) has a front surface (14) which lies on a front plane (F) parallel to the actuation direction (X), on which fixing means (11, 12) are provided. The slider (7) is symmetrical about a first plane of symmetry (S1), which contains the actuation direction (X) and is orthogonal to the front plane (F).

Description

Technical Field

[0001] The present application is applied to the field of industrial electrical equipment, in particular for controlling industrial machines and equipment, and particularly relates to a handle safety component, which can be designed, for example, to protect access to a safety boundary or a dangerous area of ​​an industrial machine or facility. Background Art

[0002] Various types of safety assemblies, including handles, are known for use in securing access to industrial machines or facilities, such as panels, perimeters or security barriers.

[0003] Typically, these assemblies consist of a safety switch and an actuator device, wherein the safety switch is suitable for being anchored to a fixed part of the frame of the portal to be protected, and the actuator device is fixed to a moving part of the portal and is in a position to interact with the safety switch when the portal is opened or closed, wherein the actuator device includes a part shaped like a handle to facilitate the movement of the portal.

[0004] In a manner always known, the safety switch comprises a switching device which is connected to a power supply and / or service circuit of a machine or installation or a part thereof and which is designed to receive one or more commands for switching the aforementioned circuits upon interaction between the safety switch and an actuator device.

[0005] Further, the actuator device, which represents a component also used as a handle for moving the portal, comprises an anchor bracket fixed to the frame of the movable part of the portal and a handle fixed to the anchor bracket.

[0006] Such solutions are known on the market, for example as described in DE102008032246B4, EP1826472 or KR10-1585038B1, which comprise an anchoring bracket for anchoring the safety switch to a fixed part of the doorway, and a sliding actuator device having a sliding member to which an actuator interacting with the safety switch and a centering pin mounted in a seat formed on the anchoring bracket and located above the safety switch are fixed.

[0007] In particular, EP1826472 discloses a safety switch comprising a switch anchored to a fixed part of a door frame by a flat bracket and an actuator device comprising a slide adapted to be mounted on a corresponding anchor bracket integral with a movable part of the door.

[0008] The slide is mounted slidably along the anchor bracket along an actuation direction parallel to the anchor plane. In addition, the slide has an actuator mounted offset relative to the actuation direction, so that the slide presents an asymmetric configuration relative to a horizontal plane passing through the actuation direction.

[0009] It can be seen that a disadvantage of these known solutions is that in order to reverse the actuation direction of the actuator device, for example to switch from right to left actuation to left to right actuation, the actuator has to be removed from the slide.

[0010] The known solutions therefore require that the actuator must be detachable from the slide and therefore potentially vulnerable to damage.

[0011] In contrast, if the actuator device is fixedly anchored, for example by rivets, one-way screws or other non-detachable fixing means, different devices need to be provided depending on the opening direction of the access opening.

[0012] Another example of a handle safety assembly particularly suitable for sliding open access is described in EP2264353, which is owned by the same applicant as the present application.

[0013] The assembly comprises a handle having an anchor bracket fixed to a movable part of the access door, the anchor bracket defining a guide for sliding a handle integrated with a key actuator, the key actuator generally being defined by a plate-like element shaped to fit into a corresponding slot provided in a safety switch associated with the fixed part of the access door, so as to be suitable for interacting with a locking / unlocking mechanism present in the same switch.

[0014] Further, the safety switch is fixed to the fixed part of the entrance and exit by a corresponding L-shaped anchor bracket, which includes a first anchor part for anchoring to the fixed part of the entrance and exit and a second anchor part that is 90° relative to the first anchor part and extends from the first anchor part, and the safety switch is fixed to the second anchor part.

[0015] A limitation of this known solution is that in order to reverse the direction of use of the handle, for example from opening from right to left to opening from left to right, the support must be turned 180° relative to the horizontal axis.

[0016] This operation complicates the installation operation of the anchor bracket and thus makes the installation operation of the entire safety assembly laborious.

[0017] Therefore, there is a need for a handle safety assembly that has greater flexibility in positioning to accommodate faster adaptation to a particular opening pattern of a doorway. Summary of the invention

[0018] The object of the present application is to overcome the above disadvantages by providing a handle safety assembly which is used to protect the entrance and exit of industrial machines or facilities and has the characteristics of high efficiency and relatively low cost.

[0019] A specific object of the present application is to provide a handle safety assembly for protecting an access opening of an industrial machine or installation, which handle safety assembly is suitable for adapting in a simple and easy manner to different types of opening of access openings with sliding opening, thereby minimizing the number of operations that need to be performed to obtain the correct orientation of the several components of the assembly.

[0020] Another object is to achieve a handle safety assembly for protecting access to an industrial machine or installation which is particularly safe and, in particular, prevents any possibility of removal of the actuator which could cause a risk of intrusion.

[0021] These objects and other objects that will become more apparent below are achieved by a handle safety assembly for protecting the entrance of an industrial machine or facility. According to an embodiment of the present application, the handle safety assembly includes: a safety switch provided with a switching device suitable for connecting to a power supply and / or service circuit of the industrial machine or facility; an actuator device including a sliding member suitable for being mounted on the entrance and exit in a sliding manner along an actuation direction and having an actuator device suitable for interacting with the safety switch as the sliding member moves toward / away from the safety switch along the actuation direction; an anchor bracket for mounting the safety switch to a fixed part of the entrance and exit and provided with a fixing device for the safety switch.

[0022] The anchor bracket has a front surface, which is located on a front plane parallel to the actuation direction, and the fixing device is arranged on the front surface.

[0023] Furthermore, the slide is symmetrical about a first symmetry plane containing the actuation direction and being orthogonal to the front plane.

[0024] Thus, the right-opening configuration differs from the left-opening configuration only in that the actuator device must be fixed to the access opening in a manner inclined by 180° in the corresponding symmetry plane and possibly in that the head of the safety switch also has to be rotated by 180° relative to the vertical axis to allow interaction between the actuator device and the switching device.

[0025] On the contrary, there is no need to modify the orientation of the anchor bracket of the safety switch, nor is there a need to remove the actuator devices from time to time and reinsert them according to the proper orientation.

[0026] Preferably, the assembly may comprise a guide adapted to be anchored to a movable part of the access opening to define said actuation direction and having a symmetrical configuration with respect to the first plane of symmetry, said slider being slidably mounted along said guide.

[0027] In this way, the guide can be mounted on the movable part of the portal according to either of two orientations, whether the portal is to the right or to the left.

[0028] Advantageous embodiments of the present application can be obtained from the following. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Other features and advantages of the present application will become more apparent from the detailed description of a preferred but non-exclusive embodiment of the components of the present application, which is illustrated by way of non-limiting example with the aid of the accompanying drawings, in which:

[0030] Figure 1 is a perspective view of the assembly with the access port in a closed position and the actuator device not inserted;

[0031] Figure 2 is a perspective view of the assembly with the access port in a closed position and the actuator device inserted;

[0032] Figure 3 yes Figure 1 Front view of the assembly without the safety switch in the shown state;

[0033] Figure 4 yes Figure 3 A cross-sectional view of the component along the trajectory plane AA;

[0034] Figure 5 yes Figure 2 Front view of the assembly without the safety switch in the shown state;

[0035] Figure 6 yes Figure 5 A cross-sectional view of the component along the trajectory plane BB in the first operating state;

[0036] Figure 7 is a perspective view of the anchor bracket;

[0037] Figure 8 is a front view of the anchor bracket;

[0038] Fig. 9 is a side view of the anchor bracket;

[0039] Fig.10 is a perspective view of the guide;

[0040] Fig.11 is a front view of the guide;

[0041] Fig.12 is a perspective view of the slide;

[0042] Fig.13 It is a front view of the slide. DETAILED DESCRIPTION

[0043] The accompanying drawings show a specific embodiment of a handle safety assembly (which should be regarded as a non-limiting example), which is generally marked as 1 and is suitable for installation at the entrance and exit of a working area of ​​a machine or industrial facility protected by a barrier or other protective device, wherein the handle safety assembly has the function of protecting such an entrance and exit to limit or ensure safe access to the working area.

[0044] In a known manner, the access opening, not shown, will comprise a fixed part suitable for delimiting the working area and at least one movable part acting as a guard against access to the working area and near which the handle safety assembly 1 will be mounted.

[0045] The handle safety assembly 1 comprises a safety switch 2 and an actuator device 4, the safety switch 2 being provided with a housing 3, the housing 3 accommodating a switch device (not shown), the switch device being suitable for being connected to a power supply and / or a service circuit of a machine or industrial facility, the actuator device 4 being suitable for being mounted on an access door in a sliding manner along a predetermined actuation direction X (usually horizontally when in use) and having an actuator device 5, the actuator device 5 being suitable for interacting with the safety switch 2 when the actuator device 4 performs an approach / removal movement relative to the safety switch 2 along the actuation direction X.

[0046] exist Figures 1 to 5 In the embodiment, the handle safety assembly 1 is arranged in a direction suitable for being fixed to the entrance and exit of the right sliding door.

[0047] In particular, Figure 1 The operating state of the handle safety assembly 1 shown in FIG. 1 corresponds to a state in which the access is closed but not locked, wherein the actuator device 5 does not interact with the safety switch 2 .

[0048] Further, Figure 2 The operating state of the handle safety assembly 1 shown in FIG. 1 corresponds to a state in which the access is closed, wherein the actuator device 5 interacts with the safety switch 2 .

[0049] Figure 2 The state may correspond to a state in which the access is closed but not restricted, i.e., a state in which the actuator device 5 is inserted into the safety switch 2 but not restricted, or to a state in which the access is closed but restricted, i.e., a state in which the actuator device 5 is inserted into the safety switch 2 and restricted.

[0050] The fixing of the safety switch 2 to the fixed part of the entrance and exit is achieved by an anchor bracket 6 which is suitable for fixing to the fixed part of the entrance and exit. In addition, the housing 3 is anchored to the anchor bracket 6.

[0051] The actuator device 4 comprises a slide 7 slidably mounted on the movable part of the access port so as to move parallel to the actuation direction X in two directions approaching or moving away from the housing 3 .

[0052] The slide 7 will support the actuator device 5 to allow simultaneous approaching or moving away relative to the safety switch 2, thereby allowing them to interact or disengage according to operational requirements, as described in more detail below.

[0053] Preferably, the actuator device 5 is fixed to the slide 7 in a non-detachable manner. For example, the actuator device 5 is riveted to the slide 7 or fixed by any other known non-detachable manner.

[0054] This fixing method improves the safety of the handle safety assembly 1 and reduces the risk of being damaged. In addition, this feature is achieved by the symmetrical shape of the actuator device 4.

[0055] Preferably, the handle safety assembly 1 further comprises a guide 8 which allows the slider 7 to be slidably fixed on the movable part of the access opening and defines the actuation direction X.

[0056] Suitably, the slide 7 has a symmetrical configuration about a first plane of symmetry S1 which is horizontal in use and contains the direction X of actuation.

[0057] Regarding the configuration of the safety switch 2, including its structure and internal configuration, as well as the structure and internal configuration of the switch device, and the configuration of the actuator device 5, those skilled in the art will understand that the configuration shown in the figure should only be understood as one of many possible configurations, but they can be equivalently replaced with different configurations without departing from the scope of protection of the present application.

[0058] In particular, the safety switch 2 has a housing 3 which is also associated with a head 9 which is fixedly or orientably anchored to the housing 3 and comprises a slot 10 for inserting the actuator device 5 .

[0059] Alternatively, the safety switch 2 may not have the head 9 , and the groove 10 may be formed on the housing 3 .

[0060] The safety switch 2 further comprises a locking / unlocking mechanism (not shown) which is designed to selectively lock the actuator device 5 relative to the safety switch 2 .

[0061] According to a first variant, the head 9 may have a pair of slots 10 arranged on opposite sides relative to a vertical plane, centered relative to the housing 3 and orthogonal to the first symmetry plane S1 to allow access to the actuator means 5 from both sides depending on the assembly situation.

[0062] The head 9 may be fixed or oriented relative to the housing 3 , for example rotatable by at least 180° relative to a rotation axis R orthogonal to the first plane of symmetry S1 and substantially located in the center of the housing 3 .

[0063] According to another variant, there will be only one slot 10 and, in this case, the head 9 will be rotated relative to the housing 3 about the aforementioned axis of rotation R so as to allow the slot 10 to be always oriented in a position facing the actuator means 5 .

[0064] More precisely, the embodiment in the figures shows a machine-operated type safety switch 2 suitable for interacting with an actuator device 4 provided with an actuator arrangement 5 having a symmetrical configuration with respect to a first plane of symmetry S1 .

[0065] Preferably, the actuator device 5 is formed on a lying plane parallel to or coincident with the first symmetry plane S1 and comprises an actuator having a structure symmetrical with respect to the first symmetry plane S1.

[0066] According to the embodiment in the figures, the actuator device 5 comprises or is defined by a key actuator extending from the slider 7, located in a placement plane parallel to or coinciding with the first plane of symmetry S1 and symmetrical with respect to the first plane of symmetry S1.

[0067] For the sake of simplicity, the key actuator is also indicated by 5, and the key actuator is designed to be fitted into the slot 10. When in use, the slot 10 is in a position aligned with the key actuator 5 relative to the placement plane.

[0068] In this way, the key actuator 5 is allowed to be inserted into the head 9 when the slider 7 slides along the guide 8 to approach the safety switch 2 and interact with the switching device.

[0069] According to an alternative embodiment not shown, the handle safety assembly 1 can be of an electronically operated type, i.e. having a safety switch 2 and an actuator device 4, the safety switch 2 and the actuator device 4 being equipped with respective remote communication elements suitable for allowing interaction between the switch circuit and the actuator device 5 by exchanging proximity signals (e.g. RFID (radio frequency identification) type, NFC (near field communication) type or other electronic or magnetic signals) to allow the safety switch 2 to even identify the presence of the actuator device 5 in a unique manner, so that the entrance and exit can be considered to be closed when the safety switch 2 and the actuator device 5 are at a certain distance.

[0070] In this case, the slide 7 can be free of any protruding elements to allow restricted access or, preferably, the slide 7 can be equipped with centering and retaining pins which are inserted into special grooves or centering holes in the head 9 and which preferably always have a symmetrical configuration relative to at least the first plane of symmetry S1.

[0071] The fixing of the safety switch 2 to the fixed part of the doorway will be realized by means of an anchoring bracket 6 which is suitable for fixing to the fixed part of the doorway and to which the housing 3 in turn will be anchored.

[0072] The anchor bracket 6 allowing the safety switch 2 to be fixed to the fixed part of the access door can also be symmetrical, in particular symmetrical relative to a second symmetry plane S2, which is orthogonal to the first symmetry plane S1 and to the actuation direction X of the actuator device 4 in use.

[0073] from Figures 7 to 9 As can be seen more clearly, the anchor bracket 6 has a substantially quadrilateral planar shape, the transverse dimension w of which is preferably equal to the transverse dimension of the safety switch 2 for which it is designed.

[0074] Specifically, the anchor bracket 6 has a front plane F ( Fig. 9 ) on the front surface 14, the front plane F is parallel to the actuation direction X and orthogonal to the first symmetry plane S1.

[0075] The fixing means 11 , 12 are arranged on the front surface 14 and are adapted to allow fixing the same anchor bracket 6 to the fixing part and to fix the safety switch 2 to the anchor bracket 6 .

[0076] In a preferred and particularly advantageous manner, the above-mentioned fixing means will be made directly on the front face 14 of the anchoring bracket 6 , preferably in such a way that they do not protrude relative to the front face 14 .

[0077] For example, as shown in the figure, the fixing device includes a first fixing member 11 and an anchoring member 12, wherein the first fixing member 11 is suitable for assembling the anchoring bracket 6 on the fixed part of the entrance, and the anchoring member 12 is used to install the housing 3 on the anchoring bracket 6. Preferably, the housing 3 is fixed on the front surface 14 of the anchoring bracket 6.

[0078] In the embodiment shown in the figures, both the first fixing member 11 and the anchoring member 12 are made directly in the front surface 14 of the anchoring bracket 6 and include holes or grooves suitable for fixing the anchoring bracket 6 to the fixing part of the entrance and exit, and anchoring the shell 3 to the anchoring bracket 6 by screws 13 or equivalent means, however, these means can be replaced by different types of fixing elements.

[0079] Furthermore, in a particularly advantageous manner, the first fixing member 11 and possibly the anchoring member 12 are arranged in a manner such that ... the anchoring member 12 are arranged Figure 3 ) are symmetrically arranged on the front surface 14 of the anchor bracket 6.

[0080] The anchoring means 12 will also be allocated according to the same configuration as the corresponding channels provided in the housing 3, suitable for allowing the insertion of screws 13 or other equivalent means.

[0081] Fig.10 and Fig.11 A preferred embodiment of a guide 8 is shown, on which the slider 7 is to be slidably mounted.

[0082] Preferably, the guide 8 also has a symmetrical structure with respect to the first symmetry plane S1 and is provided with a second fixing member 15 adapted to mount the guide 8 on a movable part of the entrance or exit.

[0083] The slide 7 instead remains trapped in the central groove 16 of the guide 8 and can only slide in the actuation direction X.

[0084] To this end, the central groove 16 will be provided with longitudinal fins 26, which will act as constraints on the slide 7 in the frontal direction, thereby retaining the slide 7 in the central groove 16. In addition, at the end of the central groove 16, at the withdrawal port of the actuator device 5, there is an end travel seat 27 for the slide 28, which is located in the slide 7, as shown from Figure 4 and Figure 6 More clearly visible in.

[0085] By comparing these figures, it can be seen that the slide 7 will translate along the guide 8 between a first end position, in which the actuator device 5 does not interact with the safety switch 2, and a second end position, in which the actuator device 5 interacts with the safety switch 2.

[0086] In addition, when the slide 7 translates the maximum stroke in the withdrawal direction of the actuator device 5 and moves to the first end position, the slide 28 will be inserted into the end stroke seat 27 due to the push of a spring or other elastic element (not visible), thereby preventing the slide 7 from continuing to move in its stroke and holding it stably in place.

[0087] Advantageously, this prevents unwanted movement of the slide 7 due to shocks or vibrations.

[0088] The slide 28 will act as a locking element and will be appropriately integrated with an unlocking member 29, which can be manually operated, for example by a key, a button or the like. By activating the unlocking member 29 by the operator, the slide 28 can be withdrawn from the end travel seat 27 to unlock the slide 7 and allow it to slide in the opposite direction, i.e. towards the second end position.

[0089] Advantageously, the slide 7 will be provided with a receiving seat 30 for the unlocking member 29, the shape of the receiving seat 30 being designed to completely accommodate the unlocking member 29 when the slide 7 is in the first end position, so that the unlocking member 29 does not have any part protruding outside the receiving seat 30 and which may be accidentally touched and cause unauthorized movement of the slide 28.

[0090] In practice, the second fixing members 15 will also be distributed on the front surface 17 of the guide 8 in a configuration symmetrical with respect to the first plane of symmetry S1 .

[0091] Fig.12 and Fig.13 A preferred but non-exclusive embodiment of a slider 7 is shown, the slider 7 comprising a rigid housing 18 having a gripping portion 19 shaped like a handle and an actuating portion 20, the gripping portion 19 being adapted to be gripped by a user to facilitate sliding of the slider 7 along the guide 8, the actuating portion 20 being integrated with the gripping portion 19 and the key actuator 5 protruding from the actuating portion 20, or the actuating portion 20 being provided with an actuator device in any case.

[0092] Advantageously, the rigid shell 18 also has a configuration symmetrical about the first plane of symmetry S1 , such that it is sufficient to tilt it by 180° in the first plane of symmetry S1 to move it from a configuration for opening the door to the left to a configuration for opening the door to the right, and vice versa.

[0093] Advantageously, the entire actuator device 4 will have a configuration symmetrical about the first plane of symmetry S1 , so that it is sufficient to tilt it by 180° in the first plane of symmetry S1 to move it from a configuration for opening the portal to the left to a configuration for opening the portal to the right, and vice versa.

[0094] The sliding member 7 is also provided with a centering bracket 21, which in the configuration of the accompanying drawings is arranged behind the actuator device 5, but the centering bracket 21 can also be positioned in a different way, for example, above or below, and the centering bracket 21 slides into the central groove 16 of the guide member 8 to restrict the rigid shell 18 on the guide member 8.

[0095] The centering bracket 21 comprises a centering end 22 shaped to be inserted into a seat 23 provided on a side surface 24 of the anchor bracket 6 , thereby ensuring that the coupling between the safety switch 2 and the actuator device 4 is more stable when the access is in a closed state.

[0096] Suitably, the anchor bracket 6 will be provided with seats 23 on both side surfaces 24, or with a single seat 23 extending along the entire lateral portion of the anchor bracket 6, to allow insertion of the centering end 22 of the centering bracket 21 when the guide 8 is mounted on the right or left side of the anchor bracket 6.

[0097] Preferably, the anchor bracket 6 is made in one piece, which includes the first fixing member 11 , the anchor member 12 and at least one seat 23 .

[0098] Preferably, the anchor bracket 6 has a constant thickness and the seat 23 is located on the side surface 24 of the anchor bracket 6 without changing the thickness of the anchor bracket 6. In this way, the front surface 14 is substantially flat and has no protruding elements. In addition, this allows the seat 23 to be positioned below the portion of the front surface 14 where the head 9 of the safety switch 2 is placed and / or the groove 10 is made.

[0099] Optionally, the actuator device 4 further comprises locking means designed to selectively lock the sliding movement of the slide 7 along the guide 8 towards the safety switch 2 when the slide 7 is in the first end position in which the actuator device 5 does not interact with the safety switch 2 .

[0100] The locking means comprise a fin 31 integral with the rigid housing 18 and positioned so as to project laterally relative to the guide 8 when the slide 7 is in the first end position.

[0101] The fin 31 is provided with one or more through holes 32, which are suitable for allowing a padlock to be inserted. In this way, when the slider 7 is in the withdrawn position, the operator can apply a padlock to the through hole 32 of the fin 31 to prevent the slider 7 from sliding toward the safety switch 2 by interfering with the guide 8, thereby preventing the actuator device 5 from activating the switch device.

[0102] Advantageously, this prevents the machine from being restarted until the operator removes the padlock from the locking device.

[0103] Alternatively or additionally, the locking device may comprise a mechanical selector 33, for example a key-type selector, which is integrated into the rigid housing 18 and associated with the end-stroke seat 27. The mechanical selector 33 is accessible by an operator and is designed to be brought into a free position, in which it does not interact with the end-stroke seat 27, and a locked position, in which it interacts with the end-stroke seat 27 and locks the sliding of the slide 7 along the guide 8 by mechanical interference.

[0104] From an operational perspective, when closing the portal, the slide 7 will slide along the guide 8 to insert the actuator device 5 into the slot 10 and allow the actuator device 5 to interact with the switch device, which interaction can be direct interaction or through interaction with an electrically or electronically controlled locking / unlocking mechanism, which will lock the actuator device 5 in the head 9 to prevent the portal from being opened under unsafe conditions.

[0105] After releasing the actuator device 5, the slide 7 can be moved along the actuation direction X in the removal and extraction direction of the actuator device 5. The release of the actuator device 5 can be managed remotely by sending appropriate controls to the locking / unlocking mechanism, or even by local operation of appropriate safety devices on the safety switch 2, such as the key selector 25.

[0106] It should be understood that the operation mode of the handle safety assembly 1 can be changed according to various methods known to those skilled in the art as needed.

Claims

1. A handle safety assembly for protecting the entrance and exit of an industrial machine or facility, wherein: The access door has at least one fixed part and at least one movable part, the fixed part is suitable for defining a working area of ​​the industrial machine or facility, and the movable part is used as a protection for entering the working area, and the handle safety assembly includes: - a safety switch (2) provided with a switching device suitable for connection to a power supply and / or service circuit of the industrial machine or facility; - an actuator device (4) comprising a slide (7) adapted to be mounted on the access door in a slidable manner along an actuation direction (X) and having an actuator device (5) adapted to interact with the safety switch (2) when the slide (7) performs an approaching / removing movement relative to the safety switch (2) along the actuation direction (X); - an anchor bracket (6) for mounting the safety switch (2) to a fixed part of the access door and provided with fixing means (11, 12) for the safety switch (2); Wherein, the anchor bracket (6) is provided with a front surface (14) located on a front plane (F) parallel to the driving direction (X), the fixing device (11, 12) is made on the front surface (14), and the sliding member (7) is symmetrical about a first symmetry plane (S1) containing the driving direction (X) and orthogonal to the front plane (F).

2. The handle safety assembly according to claim 1, characterized in that: The actuator device (4) is symmetrical about the first symmetry plane (S1).

3. The handle safety assembly according to claim 1, characterized in that: The actuator device (5) is fixed to the slide (7) in a non-detachable manner.

4. The handle safety assembly according to claim 1, characterized in that: The fixing device (11, 12) comprises a plurality of first fixing members (11), which are arranged on the front surface (14) of the anchor bracket (6) and have a symmetrical configuration with respect to a second symmetry plane (S2) so as to fix the anchor bracket (6) to the fixed part of the entrance and exit, and the second symmetry plane (S2) is orthogonal to the actuation direction (X) of the actuator device (4) when in use.

5. The handle safety assembly according to claim 1, characterized in that: The fixing device (11, 12) comprises a plurality of anchoring members (12) arranged on the front surface (14) of the anchoring bracket (6) and having a symmetrical configuration about a second symmetry plane (S2) to fix the safety switch (2) to the anchoring bracket (6), the second symmetry plane (S2) being orthogonal to the actuation direction (X) of the actuator device (4) when in use.

6. The handle safety assembly according to claim 2, characterized in that: The actuator device (5) has a symmetrical configuration with respect to the first symmetry plane (S1).

7. The handle safety assembly according to claim 6, characterized in that: The actuator device (4) has a configuration that is symmetrical about the first symmetry plane (S1).

8. The handle safety assembly according to claim 7, characterized in that: The actuator device (5) comprises an actuator extending from the slide (7) in a plane parallel to or coinciding with the first plane of symmetry (S1) and symmetrical with respect to the first plane of symmetry (S1).

9. The handle safety assembly according to claim 1, characterized in that: It comprises a guide (8) adapted to be anchored to the movable part of the access port and defining the actuation direction (X), the slide (7) being mounted to slide on the guide (8) along the actuation direction (X).

10. The handle safety assembly according to claim 9, characterized in that: The guide (8) has a symmetrical configuration with respect to the first symmetry plane (S1).

11. The handle safety assembly according to claim 10, characterized in that: The slide (7) comprises a rigid shell (18) having a handle portion (19) and an actuating portion (20), wherein the handle portion (19) is shaped like a handle so as to be grasped by a user and cause the slide (7) to slide along the guide (8), and the actuating portion (20) is integrated with the handle portion (19) and is provided with the actuator device (5).

12. The handle safety assembly according to claim 10, characterized in that: The slide (7) slides along the guide (8) between a first end position, in which the actuator device (5) does not interact with the safety switch (2), and a second end position, in which the actuator device (5) interacts with the safety switch (2) and accommodates a slide (28) or a locking member therein, which is suitable for entering an end stroke seat (27) in the guide (8) when the slide (7) is in the first end position.

13. The handle safety assembly according to claim 12, characterized in that: The slide (28) or locking member is associated with an unlocking member (29) adapted to allow the slide (28) to be pulled out of the end travel seat (27) to unlock the slide (7) and allow the slide (7) to slide towards the second end position.

14. The handle safety assembly according to claim 13, characterized in that: The slide (7) comprises a housing seat (30) for the unlocking member (29), the housing seat (30) being shaped so as to completely accommodate the unlocking member (29) when the slide (7) is in the first end position.

15. The handle safety assembly according to claim 1, characterized in that: The sliding member (7) is provided with a centering bracket (21), which is arranged behind the actuator device (5) and has a centering end (22), and the anchor bracket (6) includes a side surface (24) on which a seat (23) is formed for inserting the centering end (22), and the anchor bracket (6) has a substantially constant thickness and has no protruding elements.

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