WO2012056153A1 - Device for locking a door of a locker - Google Patents

Abstract

The invention relates to a device (1) for locking a door (2) of a locker (24), in particular a left-luggage or cloakroom locker, comprising a bolt (3) and a handle (9) attached to said bolt (3) in order to actuate said bolt (3) manually, said handle (9) comprising a catch means for the immobilization thereof by way of an external locking means, in particular a padlock (11), thereby making it possible to lock access to said locker (24). The device also comprises a means for separating the bolt (3) with respect to the handle (9), such that the locker (24) can be opened while the handle (9) remains locked by way of said external locking means, and an internal locking means for locking said separating means. The invention also relates to a locking method using a device according to the invention.

Description

 Locking device for a locker door Technical area

 The present invention relates to a device for locking a door of a locker, in particular locker, cloakroom or other applications.

 More particularly, it relates to a locking device comprising a bolt and a handle, said handle being able to be immobilized with a padlock affixed by each user.

 Since the reinforcement of the plans such as "Vigipirate" it appeared necessary to be able to allow a public officer to access the contents of such lockers, for a security inspection. Padlocked doors can not be opened unless the padlock or door is broken.

Prior art

The document US 2006 0236731 describes a padlock with two independent opening modes, one by a numerical code, the other by a key. When one of the two modes is open, the padlock is open, and both modes must be closed for the padlock to be closed. It is thus possible to ask users to use such locks, and to leave either the code or the key at the disposal of the manager of the cloakroom or the deposit.

 Nevertheless this has major disadvantages, since not only users are forced to use padlocks of a particular type, but in addition the management of codes and / or keys by the manager of the deposit or cloakroom is difficult. Or at the slightest error, a locker can not be opened, and the security rules can not be respected except to destroy a padlock or a door.

Presentation of the invention

The present invention aims to overcome these disadvantages. For this purpose it proposes a device for closing a door of a locker comprising a bolt and a handle attached to said bolt, to allow the actuation of said bolt by hand, said handle having an opening for its immobilization by means of external lock, in particular a padlock, thus allowing lock access to the locker. The device is particular in that it further comprises a means for detaching the bolt from the handle, so that the rack can be opened while the handle remains locked by said external locking means, and a locking means internal for locking said uncoupling means.

 Thanks to these provisions, the handle can be locked by any padlock set up by a user, the manager of the order or cloakroom can use a key that he himself purchased for the internal locking means, and it is therefore much easier for him to manage. It can even ensure that all lockers of a locker or locker room are equipped with an internal lock operable with one and the same key, which further facilitates key management.

 According to other characteristics

 The bolt is rotatably actuated, and the disengaging means is a key cylinder. This cylinder is secured to said handle in the locked position of said key cylinder, and free with respect to said handle in the unlocked position of said key cylinder. In addition, said key cylinder also fulfills the function of internally locking said means of decoupling by locking the cylinder,

said key cylinder is a flaky cylinder; this type of cylinder allows a simple realization of the part surrounding said cylinder, which is favorable for the costs;

a sleeve is disposed integral with the bolt; this allows the use of a standard commercial key cylinder, which is also cost-friendly; said cylinder is disposed in a bore of said sheath, which is disposed in a bore of said handle, and in which a locking plate secures the sleeve to the handle in the locked position of said key cylinder and releases the sheath of the handle in a predetermined position of said key cylinder, by a displacement of said locking plate; such characteristics improve the level of security of the system, since as long as the key has not made a predetermined stroke, for example a half turn, the bolt remains in the locked position; an angular clearance is arranged between the sleeve and the cylinder and said locking plate is designed to release the sleeve of the handle if a rotational force is applied to the bolt allowing, even in the locked position of the device, an emergency manual opening device from the inside of said bin.

 The present invention also relates to a method of unlocking a door of a locker, in particular a locker or cloakroom, using a device according to the invention and whose handle is locked by an external locking means, for example a padlock. . This method is particular in that it comprises the following steps:

 • Unlocking the internal locking means in order to separate the bolt from the handle,

 • Unlocking the bolt to open the door of said locker

 The present invention also relates to a method of unlocking a door of a locker, in particular a locker or cloakroom, using a device according to the invention and whose handle is locked by an external locking means, for example a padlock. . This method is particular in that it comprises the following steps:

 Introduction of the key into the key cylinder in its locked position in order to release the cylinder from the sleeve,

 • rotation of the key with its cylinder to reach the position, preferably 180 ° of the locked position, for releasing said sleeve of said handle,

 • additional rotation of the key with its cylinder, said sleeve and said bolt, to unlock the door of said locker.

Brief description of the drawings

 The present invention will be better understood on reading the detailed description which follows with reference to the appended figures in which

FIG. 1 represents a perspective view of the device in a preferred embodiment according to the invention,

FIG. 2 represents an exploded perspective view of the device of FIG. 1, FIGS. 3 and 4 are a perspective view of the device of FIG. 1, respectively in the closed and open position,

 FIGS. 5 and 6 show a section of the device of FIG. 1 in two different states,

FIGS. 7 to 10 show a perspective view of the device of FIG. 1 in successive states during unlocking and re-locking; FIG. 11 represents a detail of the device of FIG. 1;

Best way to realize the invention

As can be seen in FIGS. 1 and 2, a device 1 for locking a door 2 according to the invention consists of a bolt, or a cam, 3 fixed on a sleeve 4 integrally in rotation by engagement the end of the sleeve 4 in a footprint 5 in the form of a cross. A screw 6 engaged in a threaded hole (not visible) at the end of the sleeve 4 and a washer 7 ensure the attachment. The bolt 3 can be equipped with two quick-fixing washers 8 for fixing and driving the rods (three-point closure, according to customer use).

A handle 9 is arranged around the sleeve 4, for locking and unlocking the bolt 3 by hand from the outside of the door 2 (see Figures 3 and 4). The handle 9 is provided with an opening 10 for receiving a padlock January 1, disposed on the handle 9 by a user who wishes to lock the door 2 of the locker 24 after depositing his personal belongings inside. A stator 12 is fixed by a nut 13 to the door 2; the partial cylinder shape of the stator 12 makes it possible to lock the handle 9 provided with a padlock 11 in the position in which the padlock 11 is turned downwards, which corresponds to the locked position of the device 1. In the absence of padlock January 1, the handle 9 is rotatable to allow the opening or closing of the bolt 3. The sleeve 4 is rotatable relative to the handle 9, this rotation can be prevented or permitted according to the closing or opening of a flake cylinder 14, actuated by a key 16. A locking plate 17 makes it possible to secure the sleeve 4 to the handle 9. Various machining operations 18, 19, 20 in the handle 9, the sleeve 4 and the cylinder 14 create angular clearances which allow the sleeve 4 to rotate a quarter of a turn in case of rotation of the bolt 3 by the manual action of a person who would be locked by If such a case occurs, it is necessary to then return the device 1 to its normal state of lock. For this purpose, a mark 21 on a cover 22 makes it possible to observe that the bolt 3 has been actuated from the inside, insofar as said mark 21 is no longer opposite the corresponding mark 23 on the handle 9.

 A user wishing to rent a locker 24, cloakroom or deposit, brings his own lock 1 1, deposits the objects he wants to store in the locker 24, then locks the locker 24 manually by the handle 9. Then he affixes his lock 1 1 in the opening 10 provided for this purpose in the handle 9, to lock it in the locking position of the door 2. The locker 24 is thus locked in the closed position, the other users can not access it.

 If a security check is required, in the event of a bomb threat, for example, the manager of the locker room or the locker takes his unique key 16, or his set of keys as the case may be, intended to unlock the lockers 24 by the internal locking means 14 of the device 1.

 It introduces the key 16 into the key cylinder 14 of the device 1. The key 16 thus introduced moves the flakes 15 (see FIG 5), so that their ends coincide with the outer surface of the cylinder 14. This makes it possible to rotate the cylinder 14 in the sleeve 4. At the beginning of the movement of the key 16, the locking plate 17 holds the sleeve 4 secured to the handle 9. After a 180 ° rotation of the key 16 with the cylinder 14, the locking plate 17 is released from the handle 9 (see FIG. ), which makes the sheath 4 mobile in rotation in the handle 9, which handle 9 remains locked by the padlock January 1. The value of 180 ° corresponds to the embodiment shown in FIGS. but the lock can be designed so that the sleeve is released from the handle after a given angle up to 360 °.

The machining operations 19 and 20 cooperate to allow the cylinder 14 to move the sheath 4 in its rotation by more than 180 ° (see Figs 7 and 8). Or the bolt 3 is secured to the sleeve 4. Accordingly by turning the key 16 and the cylinder 14 an additional quarter turn, the sleeve 4 also rotating, the bolt 3 rotates in turn, and unlocks the door 2 of the locker 24 (see Fig. 9). The handle 9 has not moved, it is still blocked by the padlock January 1, but the locker 24 is now open, which allows to carry out the required security control. Once the control has been carried out, the operations must be repeated in the opposite direction. The door 2 of the rack 24 is closed, then a first half-turn is made with the key 16, so as to bring the machining operations 19 and 20 into contact in the direction required so that the cylinder 14 drives the sleeve 4 in rotation in rotation. opposite direction (see Fig. 10). Then performing an additional quarter turn, the key 16 drives the cylinder 14, the sleeve 4 and the bolt 3 until complete locking of the device 1 (see Figure 7). The machining 18, 19 and 20 are not visible in normal operation, since the cover 22 covers the whole. At the end of closure, the mark 21 on the cover 22 must correspond to the mark 23 on the handle 9, which ensures that the device 1 is in its locking position.

 In the locked position of the device 1 (see FIG 7) the machining operations 18 and 19 cooperate to allow the sheath 4, and thus the bolt 3 to rotate a quarter of a turn when a force is exerted on the sheath 4, for example by the bolt 3. Such an opening is not possible from the outside, firstly because no catch is possible to exert a rotational force on the sleeve 4, on the other hand because the cover 22 covers the front face of the device 1, and therefore does not give access to these machining 18, 19, 20 (see Figure 1 1).

 It is nevertheless possible to exert a rotational force from outside on the cylinder 14, by introducing any key 16 but of a comparable size. Even if the key 16 penetrates only very little in the lock, it allows to exert such an effort. This certainly does not release the cylinder 14, since the flakes 15 secure it to the sheath 4, but it could make it possible to rotate the cylinder 14 and the sheath 4 - and thus the bolt 3 - and thus unlock the door 2 of the locker 24 This is to prevent that the locking plate 17 is designed so as to block the sleeve 4 on the handle 9 in the locked position of the device 1, and to prevent a rotational force exerted on the sleeve 4 by a key 16 inserted partially into the cylinder 14 can allow its rotation. Nevertheless, if a force is exerted on the bolt 3, this force is transmitted directly on the sleeve 4, without any force applied by the cylinder 14. The locking plate 17 is then released automatically, and allows the rotation of the sleeve 4.

The present invention allows the management of lockers lockers or deposit, with a possibility of safety visit, while leaving the choice of padlock 1 1 to each user, the manager having his own keys. Indeed, the handle 9 can be locked by any lock 1 1 set up by a user, the manager of the order or cloakroom can use a key 16 that he himself purchased for the locking means it is easy for him to manage. It can even ensure that all the lockers of a locker or locker room are equipped with an internal lock operable with one and the same key 16, which further facilitates key management.

 Although the invention has been described according to a particular embodiment, it is not limited thereto, and variations may be made thereto, as well as combinations of the variants described, without departing from the scope of the present invention.

 This invention represented in this case with a cylinder 14 and flakes 15 is also valid with a cylinder or device using alternative technologies (pistons, magnetic, electromagnetic etc.)

Claims

1. Device (1) for locking a door (2) of a locker (24), in particular a locker or cloakroom, comprising a bolt (3) and a handle (9) attached to said bolt (3), to enable actuating said bolt (3) by hand, said handle (9) having an opening (10) for its immobilization by an external locking means, in particular a padlock (1 1), thereby locking access to said locker (24),  characterized in that it further comprises a means for detaching the bolt (3) from the handle (9), so that the rack (24) can be opened while the handle (9) remains locked by said means external locking means, and an internal locking means for locking said uncoupling means.  2. Device (1) according to the preceding claim, wherein said bolt (3) is rotatable and said disengaging means is a cylinder (14) key (16), integral with said handle (9) in the locked position of said cylinder (14) key, and free relative to said handle (9) in the unlocked position of said cylinder (14) key.  3. Device (1) according to the preceding claim, wherein said cylinder (14) key is a cylinder (14) flake (15).  4. Device (1) according to one of the two preceding claims, comprising a sleeve (4) integral with the bolt (3). 5. Device (1) according to the preceding claim, wherein said cylinder (14) is disposed in a bore of said sheath (4), which is arranged in a bore of said handle (9), and wherein a locking plate ( 17) secures the sleeve (4) to the handle (9) in the locked position of said key cylinder (14) and releases the sleeve (4) of the handle (9) in a predetermined position of said key cylinder (14), by a displacement of said locking plate (17). 6. Device (1) according to the preceding claim, wherein an angular clearance is disposed between said sleeve (4) and said handle (9), and said plate of lock (17) is designed to release the sleeve (4) of the handle (9) if a rotational force is applied to the bolt (3) allowing, even in the locked position of the device (1), an emergency manual opening the device (1) from the inside of said bin (24).  Method for unlocking a door (2) from a locker (24), in particular a locker or cloakroom, using a device (1) according to one of the preceding claims and whose handle (9) is locked by a external locking means, in particular a padlock (1 1), characterized in that it comprises the following steps:  • Unlocking the internal locking means (14) in order to separate the bolt (3) from the handle (9),  • Unlocking the bolt (3) to open the door (2) of said locker (24). Method for unlocking a door (2) from a locker (24), in particular a locker or cloakroom, using a device (1) according to one of Claims 4 to 6 and whose handle (9) is locked by an external locking means, in particular a padlock (1 1), characterized in that it comprises the following steps:  Introduction of the key (16) into the key cylinder (14) in its locked position in order to release the cylinder (14) from the sleeve (4),  • rotation of the key (16) with its cylinder (14) to reach the position, preferably 180 ° of the locked position, for releasing said sleeve (4) of said handle (9),  • additional rotation of the key (16) with its cylinder (14), said sleeve (4) and said bolt (3), for unlocking the door (2) of said rack (24).