Electromechanical locking device for waste collection containers

Description

[0001] The invention relates to an access control device for a waste container.

[0002] In the field of waste collection, the use of waste containers, such as drop-off containers installed in designated collection areas, is well-known. These containers allow users to deposit their waste. Such a waste collection system typically includes a container, which can be fully buried, and a terminal that protrudes from the ground for waste insertion. The terminal has a door and a handle that opens or closes the door via a dedicated mechanism functionally connected to both the handle and the door.

[0003] In order to ensure better control of the volume of waste produced and to encourage users to sort waste, it is known to install access control on waste containers to authorize or not the deposit of waste according to authorizations granted to users and to record the deposits made by each user.

[0004] These access control devices typically include a badge reader. When a user wishes to dispose of waste, they present a badge to the reader; the access control device then queries a database, usually remote, via a telecommunications network, to determine whether the user is authorized to dispose of their waste.

[0005] Another known method is to store a predetermined sector code in the access control device's memory; authorization is then granted to any user presenting a badge with that sector code. EP3943413 describes a collection point suitable for use with a container, featuring a door for introducing waste into the point and an electrically operated door locking device.

[0006] However, one problem concerns the integration of access control on existing waste containers.

[0007] Indeed, many deployed containers today lack access control solutions. It would be beneficial to be able to equip them with access control without having to replace the entire container.

[0008] That is why there is a need for a solution to equip existing waste containers, but not yet equipped with an access control system.

[0009] Furthermore, it has been observed that in traditional waste collection systems, actuation functions, such as the opening of the container door, are typically operated manually or require complex and expensive power supplies. These doors also need to ensure controlled access to the waste container to prevent unauthorized use of the waste collection system.

[0010] All the more so in this case, with the increase in waste collection devices of components or elements that require a power supply, it is necessary to emphasize the need to equip these devices with simple power supply systems that do not involve high energy consumption.

[0011] The invention aims to overcome all or part of the problems mentioned above by providing a waste collection device equipped with a locking and unlocking system on the container terminal. This system allows the terminal door to be partially locked after use, requiring the container user to present an authorized means of identification, such as a badge, card, mobile phone, or any other electronic and / or mechanical device paired with the locking / unlocking system, as is known in the technical field. This partial locking has the advantage of allowing only one opening per use, even if the terminal door is not completely closed by the previous user, thus preventing any unauthorized user from opening the container terminal door without proper identification.

[0012] To this end, the invention relates to a device comprising a collection point suitable for being associated with a container, the point comprising: a door allowing the introduction of waste into the container, the door being capable of switching between an open configuration allowing the introduction of waste into the container and a closed configuration preventing the introduction of waste into the container, an electrically operated door locking device, the locking device being configured to switch the door from the open configuration to the closed configuration and vice versa, and configured to switch the door to an intermediate configuration between the open and closed configurations, the door locking device being configured to prevent switching between the intermediate configuration and the open configuration, the locking device comprising: A chassis, a double-track cam connected to the chassis by a first pivot joint and configured to perform a rotational movement along a predefined stroke, a locking support connected to the chassis by a second pivot joint, comprising a first cam follower, the locking support being configured to perform a rotation in a first direction of rotation when a first track of the double-track cam is in contact with the first cam follower, a plate connected to the chassis by a third pivot joint, comprising a second cam follower, the plate being configured to perform a rotation in a second direction of rotation, opposite to the first direction of rotation, when a second track of the double-track cam is in contact with the second follower, the plate also being configured to drive the locking support in rotation in the second direction of rotation. the locking support also includes a door locking finger suitable for being inserted, in the closed configuration, into the door.

[0013] According to one aspect of the invention, the second pivot joint and the third pivot joint have the same axis of rotation.

[0014] According to one aspect of the invention, the second pivot joint and the third pivot joint are dissociated.

[0015] According to one aspect of the invention, the locking support includes a first pressure means configured to exert on the locking support a force in a direction opposite to the first direction of rotation.

[0016] According to one aspect of the invention, the plate includes a second pressure means configured to exert on the plate a force in a direction opposite to the second direction of rotation.

[0017] According to one aspect of the invention, the locking device includes a control configured to control the rotation of the double-track cam.

[0018] According to one aspect of the invention, the device includes an angular monitoring device for the dual-track cam and / or the plate and / or the locking support.

[0019] According to one aspect of the invention, the locking device is positioned against the door of the collection terminal.

[0020] According to one aspect of the invention, the locking finger comprises a beveled end.

[0021] According to one aspect of the invention, the first means of pressure is a spring.

[0022] According to one aspect of the invention, the second means of pressure is a spring.

[0023] The invention also relates to a method for unlocking and locking a collection point door suitable for use with a container and a locking device, comprising the following steps: Rotation of the double-track cam in the first direction of rotation until a first cam position defining a stop position of the locking support so as to generate the open configuration of the door, Rotation of the double-track cam in the second direction of rotation until a second cam position defining a stop position of the plate so as to generate the closed configuration of the door, Rotation of the double-track cam between the first cam position and the second cam position defining a rest position of the locking support and the rest position of the plate so as to generate the intermediate configuration of the door.

[0024] The invention will be better understood and other advantages will become apparent upon reading the detailed description of an embodiment given by way of example, a description illustrated by the accompanying drawing in which: [ Fig.1 ] there figure 1 represents a perspective view of a waste container in an open position on which a locking device according to the invention is mounted; Fig.2 ] there figure 2 represents a perspective view of the locking device according to the invention in a closed configuration; Fig.3 ] there figure 3 represents a perspective view of the locking device according to the invention in an open configuration; Fig.4 ] there figure 4 represents a perspective view of the locking device according to the invention in an intermediate configuration; Fig.5 ] there figure 5 represents a schematic view of a method for unlocking and locking a collection terminal door according to the invention.

[0025] For the sake of clarity, the same elements will carry the same markers in the different figures.

[0026] There figure 1 represents a waste collection device 1 which includes a container 2 buried to its full height. Such a waste collection device 1 also includes a terminal 3 for emptying the waste.

[0027] According to one variant, container 2 is partially buried or is placed on the ground.

[0028] Terminal 3 of the waste collection device 1 includes a drum opening element 30.

[0029] This drum 30 has two walls 301, 302 in the form of a truncated cylinder which are hinged to each other so that in the open position, it is possible to insert waste into the terminal 3 and into the container 2.

[0030] A truncated cylinder is understood to be a wall of general cylindrical shape, but not closed, in other words a cylindrical body which would be formed by an incomplete revolution, less than 2π, for example includes between π and 4π / 3, in other words forming a portion of a cylinder ranging from ½ cylinder to 2 / 3 of a cylinder.

[0031] But the invention is not limited to these values ​​of truncated cylinder, the only criterion being that the portions of cylinder must not be closed.

[0032] We distinguish the outer wall 301 and the inner wall 302: the outer walls 301 and inner walls 302 being shaped to form two superimposable layers.

[0033] In the open position, the two external walls 301 and internal wall 302 form an insertion opening 304, allowing waste to be poured into the terminal 3.

[0034] In the closed position, the two outer walls 301 and inner walls 302 form a discharge opening, substantially opposite the insertion opening 304 with respect to the axis of rotation of the drum, allowing the waste from the drum 30 to fall into a storage part 20 of the container 2.

[0035] The articulation of the two outer walls 301 and inner walls 302 of the drum 30 is designed so that the insertion opening 304 and the discharge opening are never open simultaneously. Either the outer walls 301 and inner walls 302 are arranged, by their respective articulation, to form the insertion opening 302, or they form the discharge opening.

[0036] However, in one alternative configuration, the opening mechanism 30 could be a sliding door allowing waste to be inserted into both the terminal 3 and the container 2. In this case, the insertion and discharge openings are combined. Alternatively, the opening mechanism 30 could be a single-leaf door, also allowing waste to be inserted into both the terminal 3 and the container 2. When using a single-leaf door, the insertion and discharge openings can be separated; therefore, when the door is open, the insertion opening is accessible. Conversely, when the door is closed, the discharge opening is accessible.

[0037] Therefore, in the rest of the description, the opening device 30 is considered to be a door 30.

[0038] Thus, the waste collection device 1 comprises the collection point 3 associated with the container 2, and the point 3 includes the door allowing waste to be introduced into the point. The door 30 is designed to operate in an open configuration allowing waste to be introduced into the point 3 and in a closed configuration preventing waste from being introduced into the point 3.

[0039] To actuate the door 30 and switch it from the closed to the open position and vice versa, the collection device 1 also includes an electrically actuated door locking device 4 for the door 30. The locking device 4 is configured to switch the door from the open to the closed position and vice versa, and also configured to switch the door to an intermediate position between the open and closed positions.

[0040] The intermediate configuration can be likened to a security configuration which prevents the immediate reopening of door 30 so as to force the user to identify themselves again by swiping their badge for example to unlock door 30 without forcing door 30 to swing open until it is fully closed.

[0041] In addition, the intermediate configuration also has the advantage of allowing partial closure of door 30 to prevent any introduction of waste while delimiting a sufficient space so that the user does not injure themselves when closing the door by pinching their fingers for example.

[0042] To achieve this, the locking device 4 of door 30 is configured to prevent a switch from intermediate configuration to open configuration.

[0043] The locking device 4, shown in figure 2 , understand : A chassis 40. The chassis 40 secures the locking device 4 to the waste collection device 1. The chassis 40 has, in a preferred configuration, shown in figure 2 , a fixed housing relative to the collection device 1. A double-track cam 42 connected via a first pivot joint 420 to the frame 40 and configured to rotate along a predefined stroke. The double-track cam 42 is thus configured to rotate in a trigonometric and counter-trigonometric direction relative to the frame. A locking support 44 connected via a second pivot joint 440 to the frame 40 includes a first cam follower 442 capable of interacting with a first track 422 of the double-track cam 42. Indeed, the locking support 44 is configured to rotate in a first direction of rotation when the first track 422 of the double-track cam 42 is in contact with the first cam follower 442. According to the example of the figure 2 The first direction of rotation is counterclockwise. In the following description, the first direction of rotation is considered to be counterclockwise. Thus, when the double-track cam 42, rotating clockwise, contacts the locking support 44 via the first track 422, and then via the first cam follower 442, the double-track cam 42 drives the locking support 44 to rotate counterclockwise. This drive of the locking support 44 can be considered equivalent to the open configuration of the door, as shown in figure 3 .

[0044] The locking device 4 also includes, as shown in figure 2 A plate 46 is connected to the chassis 40 via a third pivot joint 460. The plate 46 includes a second cam follower 426 and is configured to rotate in a second direction, opposite to the first direction of rotation, i.e., in the preferred case, the trigonometric direction, when a second track 424 of the double-track cam 42 is in contact with the second cam follower 426. In the following description, the second direction of rotation is considered to be the trigonometric direction. In other words, when the double-track cam 42, rotating in the counter-trigonometric direction, contacts the plate 46 via the second track 424, through the second cam follower 464, the double-track cam 42 drives the plate 46 in a trigonometric direction. This drive of plate 46 can be likened to the closed configuration of the door, as shown in figure 2 .

[0045] The plate 46 is also configured to drive the locking support 44 in rotation in the second direction of rotation, namely the trigonometric direction, so as to allow the closed configuration of the door 30 to be obtained.

[0046] The locking support 44 also includes a door locking finger 444 suitable for insertion, in the closed configuration of the figure 2 , in door 30.

[0047] According to one variant, the double-track cam 42 can be replaced by two single-track cams, one single-track cam interacting only with the locking support 44 and a second single-track cam interacting only with the plate 46. The pivot links of each of the single-track cams can be either combined or separated.

[0048] Therefore, the use of a double track cam 42 and a plate 46 has the advantage of generating the mobility of the locking support 44, which represents the locking element of the door 30, according to the two directions of rotation, namely the trigonometric direction by means of the cam 42 and the anti-trigonometric direction by means of the plate 46.

[0049] According to a preferred configuration, in which the second pivot joint 440 and the third pivot joint 460 have the same axis of rotation, as shown in figure 2 This arrangement has the advantage of being compact and limiting the number of components in the locking device 4.

[0050] In an alternative configuration, the second pivot joint 440 and the third pivot joint 460 are separated. This separation improves the reliability of the locking support 44 and the plate 46, since if the second pivot joint 440 malfunctions, the plate 46 is not affected. Similarly, if the third pivot joint 460 malfunctions, only the plate 46 is affected, and the locking support 44's rotation remains unaffected.

[0051] In one configuration, the locking support 44 also includes a first pressure means 446 configured to exert a force on the locking support 44 in the direction opposite to the first direction of rotation. In other words, the first pressure means 446 exerts a restoring force on the locking support 44 in the direction opposite to the rotation generated by the interaction between the double-track cam 42 and the locking support 44. Thus, the first pressure means 446 generates a restoring force in the counterclockwise direction. In this way, the first pressure means 446 has the advantage of being able to hold the locking support 44 in a rest position when the double-track cam 42 is not in contact with the locking support, as shown in figure 2 .

[0052] Thus, the figure 2 represents the locking device 4 when the door 30 is in the closed configuration. In this closed configuration, the interactions between the components present in the locking device 4 are as follows: The double-track cam 42 bears against the plate 46 via the second track 424 and the second cam follower 426, thereby inducing a counterclockwise rotation of the plate 46 until it reaches a stop position against the frame 40. The locking support 44 is left free, i.e., it is distant from the double-track cam 42. Consequently, the first pressure means 446 generates a restoring force on the locking support 44, inducing a counterclockwise rotation until the locking support 44 reaches its rest position, as shown in figure 2 The rest position of the locking support 44 coincides with the stop position of the plate 46.

[0053] The locking pin 444 is thus inserted into a supplementary locking device 32, enabling the door 30 to be locked in the closed position. This supplementary locking device 32 is, for example, an additional cavity for the locking pin 444 located on the terminal 3.

[0054] Therefore, the rest position of the locking support 44 can be interpreted as the position of the locking support 44 against the plate 46 when the plate 46 is itself in the stop position imposed by the double-track cam 42.

[0055] According to one variant, the additional locking device of the locking finger 444 is a stop or an outgrowth arranged so as to prohibit any movement of the door 30 in a direction, axial or rotational, allowing the door 30 to be opened.

[0056] In one configuration, the plate 46 includes a second pressure means 466 configured to exert a force on the plate 46 in the opposite direction to the second direction of rotation. In other words, the second pressure means 466 exerts a restoring force on the plate 46 in the opposite direction to the rotation generated by the interaction between the double-track cam 42 and the plate 46. Thus, the second pressure means 466 generates a restoring force in the counterclockwise direction. In this way, the second pressure means 466 has the advantage of being able to hold the plate 46 in a rest position when the double-track cam 42 is not in contact with the plate 46, as shown in figure 3 .

[0057] Thus, the figure 3 represents the locking device 4 when the door 30 is in the open configuration. In this open configuration, the interactions between the components present in the locking device 4 are as follows: The double-track cam 42 bears against the locking support 44 via the first track 422 and the first cam follower 442, thereby inducing a counter-clockwise rotation of the locking support 44 until it reaches a stop position against the frame 40, as shown in figure 3 Plate 46 is left free, meaning that plate 46 is distant from the double-track cam 42. Therefore, the second pressure means 466 generates a restoring force on plate 46, inducing a counterclockwise rotation until the plate reaches its rest position, as shown in figure 3 .

[0058] Furthermore, the locking pin 444 also undergoes this counterclockwise rotation so as to no longer interact with the supplementary locking device 32 and is freed from its influence. The door 30 can then be unlocked by the user in the open position.

[0059] In the intermediate configuration, represented in figure 4 , the double-track cam 42 is distant from the locking support 44 and the plate 46.

[0060] Therefore, the first pressure means 446 exerts a restoring force on the locking support 44, inducing a rotation in the trigonometric direction. Similarly, the second pressure means 466 exerts a restoring force on the plate 46, inducing a rotation of the plate in the counter-trigonometric direction. The plate 46 is then in its rest position.

[0061] And, the locking support 44 is then in a partial rest position, as shown in figure 4 in which the locking support 44 is abutted against the plate 46 while the plate 46 is itself in its rest position. The partial rest position is an angular position between the rest position of the locking support 44 and the abutted position of the locking support 44 imposed by the double-track cam 42.

[0062] Consequently, the locking pin 444 is partially interacting with the supplementary locking device 32. In other words, the locking pin 444 is partially inserted into the supplementary locking device 32. This partial insertion of the locking pin 444 into the supplementary locking device 32 is sufficient to lock the door 30, even though the door is not in the closed position. The door is then in the intermediate position.

[0063] To facilitate at least partial insertion of the locking pin 444 into the supplementary locking device 32, the locking pin includes, at its end interacting with the supplementary locking device 32, a beveled end 444'. More precisely, the locking pin 444 is partially beveled along half of the cross-section forming the locking pin 444. Thus, the locking pin 444 can be inserted more easily into the supplementary locking device 32 while preventing the door 30 from being reopened.

[0064] In this preferred configuration, the locking device 4 is positioned against the door 30 of the collection terminal 3 and the additional locking device 32 is positioned against the terminal 3 opposite the locking device 4.

[0065] According to one configuration, the second pressure means 466 exerts a restoring force on the plate 46 in the counter-trigonometric direction, the modulus of which is greater than or equal to the modulus of the restoring force exerted by the first pressure means 446 on the locking support 44. This configuration has the advantage of allowing the plate 46 to resist the rotation induced by the locking support 44 and by the first pressure means 446.

[0066] According to a preferred configuration, the modulus of the restoring force of the second pressure means 466 is strictly greater than the modulus of the restoring force of the first pressure means 446.

[0067] According to a preferred configuration of the invention, the first pressure means 446 is a torsion spring. And, similarly, the second pressure means 466 is a torsion spring.

[0068] However, any other means of inducing a restoring force can be considered, such as a helical spring or a magnetic resistance.

[0069] In order to induce a rotation of the double-track cam 42 in the trigonometric or anti-trigonometric direction, the locking device 4 includes a control 45 configured to control the rotation of the double-track cam 42, as shown in figure 2 à 4 . Control unit 45 is, for example, a servomotor.

[0070] Alternatively, any type of control that allows a binary command to be generated in order to induce a rotation of the double-track cam 42 in the trigonometric or anti-trigonometric direction can be considered.

[0071] Furthermore, the locking device 4 may include an angular monitoring device 47 for the cam 42 and / or the plate 46 and / or the locking support 44. The angular monitoring device 47 consists of at least one angular sensor 470 and, in one configuration, three angular sensors 470, 471, and 472. A first angular sensor 470 is positioned to detect when the plate 46 enters the stop position of the plate 46 imposed by the double-tracked cam 42, as shown in figure 2 A second angular sensor 471 is positioned to detect when the locking support 44 enters the rest position of the locking support 44 as shown in figure 2 A third angular position sensor 472 is positioned to detect when the locking support 44 enters the stop position imposed by the double-track cam 42, as shown in figure 3 .

[0072] The first, second, and third angular sensors 470, 471, and 472 are binary detection sensors. Thus, the first angular sensor 470 can only indicate whether the plate 46 is in the stop position or not, the second angular sensor 471 can only indicate whether the locking support 44 is in the rest position or not, and the third angular sensor 472 can only indicate whether the locking support 44 is in the stop position or not.

[0073] Therefore, if simultaneously the first angular sensor 470 detects that the plate 46 is in the stop position of the plate 46 and the second angular sensor 471 detects that the locking support 44 is in the rest position of the locking support 44, and the third angular sensor 472 does not indicate that the locking support 44 is in the stop position of the locking support 44, then the door 30 is in the closed configuration.

[0074] If, simultaneously, the first angular sensor 470 does not indicate that the plate 46 is in the stop position of the plate 46, the second angular sensor 471 does not indicate that the locking support 44 is in the rest position of the locking support 44, and the third angular sensor 472 detects that the locking support 44 is in the stop position of the locking support 44, then the door 30 is in the open configuration.

[0075] And, if simultaneously the first angular sensor 470 does not indicate that the plate 46 is in the stop position of the plate 46, the second angular sensor 471 detects that the locking support 44 is in the rest position of the locking support 44, and the third angular sensor 472 does not indicate that the locking support 44 is in the stop position of the locking support 44, then the door 30 is in the intermediate configuration.

[0076] In addition, it is also possible to detect a switch between two configurations among the closed, open and intermediate configurations, the switch between the intermediate configuration and the open configuration being prohibited unless a user is identified, in particular when, simultaneously, the first angular sensor 470 does not indicate that the plate 46 is in the stop position of the plate 46, the second angular sensor 471 does not indicate that the locking support 44 is in the rest position of the locking support 44, and the third angular sensor 472 does not indicate that the locking support 44 is in the stop position of the locking support 44, then the door 30 is in the intermediate configuration.

[0077] The monitoring device 47 has the advantage of allowing the user to view the configuration in which the door 30 is located while also viewing the operational status of the components of the locking device 4 such as the plate 46 or the locking support 44.

[0078] Another angular sensor can be introduced into the control 45 so as to detect the angle of rotation of the double-track cam 42, providing more information on the operational state of the components of the locking device 4 and particularly of the double-track cam 42.

[0079] In addition, the angular monitoring device also has the advantage of being able to identify a malfunction of the locking device 4 and to target the component among the locking support 44, the plate 46 or the cam 42, of the defective locking device.

[0080] Indeed, any other combination of detection of the first, second and third angular sensors 470, 471 and 472 indicates a malfunction of the locking device 4.

[0081] It should be noted that it is possible to consider interchanging the positioning of the locking device 4 and the supplementary locking device 32. Indeed, the locking device 4 can be positioned against the terminal 3 and the supplementary locking device 32 can be positioned against the door 30 opposite the locking device 4.

[0082] The invention also aims to provide, as shown in figure 5 , a method 1000 for unlocking and locking a collection terminal door 30 suitable for use with a container 2 and a locking device 4 comprising the following steps: Rotation (step 1001) of the double-track cam 42 in the first direction of rotation, namely the counter-clockwise direction, until a first cam position defining the stop position of the locking support 44 so as to generate the open configuration of the door 30, Rotation (step 1002) of the double-track cam 42 in the second direction of rotation, namely the clockwise direction, until a second cam position defining the stop position of the plate 46 so as to generate the closed configuration of the door 30, Rotation (step 1003) of the double-track cam 42 between the first cam position and the second cam position defining the rest position of the locking support 44 and the rest position of the plate 46 so as to generate the intermediate configuration of the door 30.

[0083] Each of the steps 1001, 1002 and 1003 can follow one another in a disordered manner, the succession of steps 1002 and 1001 and the succession of step 1003 to step 1001 however requires identification (step 1004) of the user.

Claims

1. Device (1) comprising a collection terminal capable of being associated with a container (2), the terminal (3) comprising: - a door (30) allowing the introduction of waste into the terminal (3), the door (30) being capable of adopting an open configuration allowing the introduction of waste into the terminal (3) and a closed configuration preventing the introduction of waste into the terminal (3), - an electrically actuated device (4) for locking the door (30), the locking device (4) being configured to change the door (30) from the open configuration into the closed configuration and vice versa, and being configured to change the door (30) into an intermediate configuration lying between the open configuration and the closed configuration, the device (4) for locking the door (30) being configured to prevent a change from the intermediate configuration to the open configuration, the locking device (4) comprising: - a frame (40), - a double-track cam (42) connected by a first pivot linkage (420) to the frame (40) and configured to perform a rotational movement over a predefined travel, - a locking support (44) connected by a second pivot linkage (440) to the frame (40) and comprising a first cam follower (442), the locking support (44) being configured to perform a rotation in a first direction of rotation when a first track (422) of the double-track cam (42) is in contact with the first cam follower (442), - a plate (46) connected by a third pivot linkage (460) to the frame (40) and comprising a second cam follower (464), the plate (46) being configured to perform a rotation in a second direction of rotation, which is opposite to the first direction of rotation, when a second track (424) of the double-track cam (42) is in contact with the second follower (464), the plate (46) also being configured to drive the locking support (44) in rotation in the second direction of rotation, the locking support (44) also comprising a finger (444) for locking the door (30) capable of being inserted, in the closed configuration, into the door (30).

2. Device (1) according to Claim 1, wherein the second pivot linkage (440) and the third pivot linkage (460) have the same axis of rotation.

3. Device (1) according to Claim 1, wherein the second pivot linkage (440) and the third pivot linkage (460) are separate.

4. Device (1) according to any one of Claims 1 to 3, wherein the locking support (44) comprises a first pressing means (446) configured to exert a force in a direction opposite to the first direction of rotation on the locking support (44).

5. Device (1) according to one of Claims 1 to 4, wherein the plate (46) comprises a second pressing means (466) configured to exert a force in a direction opposite to the second direction of rotation on the plate (46).

6. Device (1) according to any one of Claims 1 to 5, wherein the locking device (44) comprises a control (45) configured to control the rotation of the double-track cam (42).

7. Device (1) according to any one of Claims 1 to 6, comprising a device (47) for angular monitoring of the double-track cam (42) and / or the plate (46) and / or the locking support (44).

8. Device (1) according to any one of Claims 1 to 7, wherein the locking device (44) is positioned against the door (30) of the collection terminal (3).

9. Device (1) according to any one of Claims 1 to 8, wherein the locking finger (444) comprises a bevelled end (444').

10. Device (1) according to Claim 4, wherein the first pressing means (446) is a spring.

11. Device (1) according to Claim 5, wherein the second pressing means (466) is a spring.

12. Method for unlocking and locking (1000) a door (30) of a collection terminal (3) capable of being associated with a container (2) and with a locking device (4) according to any one of Claims 1 to 11, comprising the following steps: - rotation (1001) of the double-track cam (42) in the first direction of rotation as far as a first cam position defining a stop position of the locking support (44), so as to achieve the open configuration of the door (30), - rotation (1002) of the double-track cam (42) in the second direction of rotation as far as a second cam position defining a stop position of the plate (46), so as to achieve the closed configuration of the door (30), - rotation (1003) of the double-track cam (42) between the first cam position and the second cam position, defining a resting position of the locking support (44) and the resting position of the plate (46), so as to achieve the intermediate configuration of the door (30).