Door lock with a deadbolt and a latch bolt

Abstract

Door Lock This lock comprises: - a sliding linkage between a rod and a deadbolt, allowing the rod to continue its movement from an unlocked position to a free position, - an actuator (46) which, after moving the rod from a locked position to its unlocked position, drives the rod to its free position, and - a mechanical linkage (160) between the rod and a latch bolt (36) which: - moves the latch bolt from an extended position to a retracted position when the rod is moved by the actuator from its unlocked position to its free position, and - in the unlocked position of the rod, allows the latch bolt to move to its retracted position by means of a form-fitting mechanism with a jamb attached to a door frame. Fig. 11

Description

Title of the invention: Door lock comprising a deadbolt and a latch bolt

[0001] The invention relates to a door lock comprising a deadbolt and a latch bolt as well as a bolt mechanism for the realization of this lock.

[0002] In this type of lock, to facilitate the movement of the deadbolt from its extended to its retracted position, it is preferable to keep the latch bolt in its extended position throughout the entire movement of the deadbolt to its retracted position. In this case, the latch bolt keeps the deadbolt centered within the cavity into which it is received in its extended position. This reduces friction between the inner walls of this cavity and the deadbolt that can occur during this movement.

[0003] It is also desirable, to facilitate opening the door, that the movement of the deadbolt to its retracted position and the movement of the latch bolt to its retracted position be actuated by the same actuator. This actuator cannot be the door handle, as operating the handle should only move the latch bolt to its retracted position without moving the deadbolts. For this purpose, it has already been proposed that this actuator be the lock cylinder. This is particularly advantageous because, in this case, by simply turning the key in the cylinder, the user can simultaneously move both the deadbolts to their retracted positions and the latch bolt. Therefore, once the user has finished turning the key, they can open the door simply by pushing it, without having to use the handle to retract the latch bolt.Furthermore, since it is the cylinder that operates the movement of the deadbolts into their retracted positions, only an authorized person can do this.

[0004] Examples of such locks are described in applications FR2821381 and EP2208840A2. However, the mechanisms that allow the deadbolts to be moved first and only then the latch bolt are complex. For example, in application FR2821381, this mechanism includes a pinion and racks with very specific shapes. In application EP2208840A2, an additional rod and at least two full turns of the key in the cylinder are required.

[0005] The invention aims to remedy this drawback by proposing a lock in which the mechanism for moving first the deadbolt and only then the latch bolt is simplified.

[0006] The invention therefore relates to a door lock comprising:

[0007] - a movable deadbolt between:

[0008] - an extended position, in which the deadbolt is able to lock the door in a closed position, by cooperation of form with a corresponding cavity formed in a vertical part of a post attached to a door frame, and

[0009] - a retracted position in which the deadbolt allows the door to be opened,

[0010] - a rod that can be moved in translation, in an unlocking direction, from a locked position until an unlocked position,

[0011] - a sliding link between the rod and the deadbolt capable of moving the bolt dormant from its extended position to its retracted position when the rod moves from its locked position to its unlocked position,

[0012] - an actuator capable of driving the movement of the rod from its position towards rusted up to its unlocked position, this actuator being chosen from the group consisting of a lock cylinder and an electric motor,

[0013] - a movable latch bolt between:

[0014] - an extended position, in which the latch bolt is able to hold the door in the closed position, by cooperation of form with a corresponding cavity made in the upright attached to the door frame, and

[0015] - a retracted position in which the latch bolt allows the door to be opened,

[0016] this latch bolt having a beveled distal end capable, by cooperation of form with the upright attached to the frame, of moving the latch bolt from its extended position to its retracted position when the door is slammed,

[0017] - a spring that constantly forces the latch bolt towards its extended position,

[0018] in which:

[0019] - the sliding connection between the rod and the deadbolt is suitable for allowing the rod to continue its movement in the unlocking direction, from its unlocked position to a free position,

[0020] -1'actuator is ready, after having moved the rod from its locked position until its unlocked position, causing the rod to move to its free position, and

[0021] - the lock includes a mechanical link between the rod and the latch bolt suitable:

[0022] - to move the latch bolt from its extended position to its retracted position when the The rod is moved by the actuator from its unlocked position to its free position, and

[0023] - in the unlocked position of the rod, to allow movement of the bolt half-turn towards its retracted position by cooperation of form with the solid upright of the sleeper.

[0024] Embodiments of this lock may include one or more of the following features:

[0025] 1) The mechanical linkage comprises:

[0026] - a suitable lever, when rotated in a direction of bolt retraction half-turn, to move the half-turn bolt from its extended position to its retracted position,

[0027] - a contact face fitted on the rod and shaped:

[0028] - to engage directly with the lever and drive it in rotation in the direction of retraction of the latch bolt only occurs when the rod moves from its locked position to its free position, and

[0029] - to allow the latch bolt to be freely moved from its outward position towards its retracted position by cooperation of form with the amount as long as the rod is in its unlocked position.

[0030] 2)

[0031] - the contact face of the rod has a side inclined with respect to the direction of unlocking, and

[0032] - the lever includes a roller mounted to rotate freely around an axis eccentric by in relation to the axis of rotation of the lever, this eccentric axis being fixed, without any degree of freedom, to the lever, this roller being able to roll on the inclined pan when the contact face of the rod engages directly with the lever to drive it in rotation in the direction of retraction of the latch bolt.

[0033] 3) The mechanical link is also suitable, in the unlocked position of the rod, to allow the movement of the latch bolt towards its retracted position using a handle.

[0034] 4)

[0035] - the lock includes a follower adapted to receive the handle, this follower being mounted in rotation around an axis of rotation of the spindle,

[0036] - the lever is mounted to rotate freely around the axis of rotation of the follower and the lever includes a movable support face between:

[0037] - an engaged state in which it is supported on a corresponding bearing face of the follower to rotate the lever in the retraction direction when the follower is rotated by the handle in that retraction direction, and

[0038] - a disengaged state which allows movement of the lever by the contact face of the rod without rotating the follower.

[0039] 5)

[0040] - the lock comprises an outer casing in which an opening is provided in into which the deadbolt is received, a distal end of the deadbolt protruding beyond this opening in its extended position and flush with this opening in its retracted position, and

[0041] - the sliding link between the rod and the deadbolt has a notch and a a sliding pin inside this notch, the notch having a portion inclined relative to the unlocking direction and a portion parallel to the unlocking direction, the inclined and vertical portions being configured so that the pin slides along the inclined portion when the rod moves from its locked position to its unlocked position and then slides along the vertical portion when the rod moves from its unlocked position to its free position while keeping the deadbolt immobilized in its retracted position.

[0042] 6)

[0043] - the rod comprises:

[0044] - an outer segment in which part of the sliding connection between is made the rod and the deadbolt, and

[0045] - an inner segment in which part of the mechanical connection is made between the rod and the latch bolt, the outer and inner segments can be coupled and decoupled from each other reversibly,

[0046] - the lock comprises a replaceable lock housing comprising, assembled one another with others:

[0047] - the inner segment of the rod, the outer segment of the rod being in entirely outside this casing,

[0048] - the actuator,

[0049] - the latch bolt,

[0050] - the mechanical link between the lower part of the rod and the latch bolt.

[0051] 7) The lock is a door strip.

[0052] The invention also relates to a bolt mechanism for implementing the above-mentioned lock, this bolt mechanism comprising:

[0053] - a movable deadbolt between:

[0054] - an extended position, in which the deadbolt is able to lock the door in a closed position, by cooperation of form with a corresponding cavity formed in a vertical part of a stile attached to a door frame, and

[0055] - a retracted position in which the deadbolt allows the door to be opened,

[0056] - a rod that can be moved in translation in a unlocking direction from a locked position until an unlocked position,

[0057] - a sliding link between the rod and the deadbolt capable of moving the bolt dormant from its extended position to its retracted position when the rod moves from its locked position to its unlocked position,

[0058] - a movable latch bolt between:

[0059] - an extended position, in which the latch bolt is able to hold the door in the closed position, by cooperation of form with a corresponding cavity made in the upright attached to the door frame, and

[0060] - a retracted position in which the latch bolt allows the door to be opened,

[0061] this latch bolt having a beveled distal end capable, by cooperation of form with the upright integral with the frame, of moving the latch bolt from its extended position to its retracted position when the door is slammed,

[0062] - a spring that constantly forces the latch bolt towards its extended position,

[0063] in which:

[0064] - the sliding connection between the rod and the deadbolt is suitable for allowing the rod to continue its movement in the unlocking direction, from its unlocked position to a free position, and

[0065] - the lock includes a mechanical link between the rod and the latch bolt suitable:

[0066] - to move the latch bolt from its extended position to its retracted position when the The rod is moved by the actuator from its unlocked position to its free position, and

[0067] - in the unlocked position of the rod, to allow movement of the bolt half-turn towards its retracted position by cooperation of form with the solid upright of the sleeper.

[0068] The invention will be better understood upon reading the following description, given solely by way of non-limiting example and made with reference to the drawings in which:

[0069] - [Fig. 1] is a schematic illustration of the architecture of a control system access,

[0070] - [Fig. 2] is a schematic illustration of the different components of a lock electronics of the system of the [Fig.1],

[0071] - Figures 3 to 5 are partial views of a bolt mechanism of the lock of the [Fig.2] in three different states,

[0072] - [Fig. 6] is a view of a sliding link of the bolt mechanism of Figures 3 to 5,

[0073] - [Fig.7] is a front view of a notch in the sliding joint of [Fig.6],

[0074] - [Fig. 8] is a perspective view of a support for the sliding joint of the [Fig.6]

[0075] - Figures 9 to 11 are partial views of a lock housing of [Fig. 2] in three different states,

[0076] - [Fig. 12] is a front view of a mechanical linkage located inside the housing figures 9 to 11,

[0077] - [Fig. 13] is a perspective view of a lever of the mechanical linkage of the [Fig.12]

[0078] In this description, the terminology, conventions and definitions of terms The embodiments used in this text are introduced in Chapter I. Detailed examples of these embodiments are then described in Chapter II with reference to the figures. Variants of these embodiments are presented in Chapter III. Finally, the advantages of the different embodiments are specified in Chapter IV.

[0079] Chapter I: Definitions, terminology and conventions:

[0080] In the figures, the same references are used to designate the same elements.

[0081] In the remainder of this description, the well-known characteristics and functions of a person skilled in the art are not described in detail.

[0082] Figures 1 and 3 to 13 are oriented with respect to an orthogonal XYZ coordinate system, where the X and Y directions are horizontal and the Z direction is vertical. Terms such as "above," "below," "top," "bottom," "superior," and "inferior" are defined with respect to the Z direction. Terms such as "front" and "back" are defined with respect to the Y direction. Terms "right" and "left" are defined with respect to the X direction, with the X direction pointing to the right.

[0083] Chapter II: Example of an embodiment

[0084] Figure 1 represents a home access control system 2. System 2 ensures that an unauthorized person cannot enter the home or can do so with great difficulty. For example, the person authorized to enter the home is the owner. To this end, System 2 comprises:

[0085] - an entrance door 4,

[0086] - a remote terminal 6 intended for use by the owner, and

[0087] - an electronic lock 8 mounted on the door 4.

[0088] Subsequently, the lock 8 is described in the particular case where it is a strip of door. Therefore, the numerical reference 8 is also used to designate the door header.

[0089] Door 4 is located at the entrance to the home. This door 4 separates the interior of the home from the exterior of the home. Hereafter, the terms "interior" and "exterior" are used to refer to what is located, respectively, inside and outside the home. For example, door 4 is a front door of an apartment, house, or other dwelling. Door 4 has an interior face facing the interior of the home and, on the opposite side, an exterior face. The interior and exterior faces extend primarily in parallel vertical planes. Door 4 can be moved between an open position, shown in [Fig. 1], and a closed position. In the open position, a person can enter the home and thus move from the outside of the home to the inside. Conversely, in the In the closed position, a person cannot enter the home.

[0090] In this embodiment, the orthogonal coordinate system XYZ is fixed, without any degrees of freedom, to the inner face of the door 4. The X direction is directed from the edge of the door along which the strip 8 is fixed, towards the hinges of this door. The Y direction is directed from the inside of the dwelling towards the outside of the dwelling.

[0091] Terminal 6 is, for example, located outside the home and may be several kilometers away. For simplicity in [Fig. 1], only one Terminal 6 is shown. However, in practice, there are often several Terminal 6s that function in the same way. Only Terminal 6 is described in more detail hereafter.

[0092] Terminal 6 is capable of establishing video communication with a person located on the outside of door 4. It is also capable of sending an unlocking command to the control panel 8. For this purpose, it includes:

[0093] - a memory 16 containing the data and instructions necessary for its functioning,

[0094] - a microprocessor 18 capable of executing the instructions stored in memory 16,

[0095] - a human-machine interface 20, and

[0096] - a transceiver 22.

[0097] The interface 20 includes, for example, one or more buttons that can be operated by the owner. Here, it includes in particular a button 26 to trigger the sending of the unlocking command.

[0098] The transceiver 22 allows the terminal 6 to be connected to the band 8 via a long-distance telecommunications network 28 such as a wireless telephone network or the Internet network.

[0099] Terminal 6 is, typically, the owner's smartphone.

[0100] The strip 8 is a multipoint door strip. The strip 8 is mounted, without any degree of freedom, on the inner face of the door 4.

[0101] The strip 8 is in the form of a single piece within which are housed the various components described with reference to [Fig. 2]. For this purpose, the strip 8 is in the form of a rigid housing 30 inside which its various components are fixed. The housing 30 is fixed here along the vertical edge of the door 4 located on the side opposite the hinges. The housing 30 is fixed to the inner face of the door 4, for example, by means of screws. Advantageously, the strip 8 can thus be installed on the inner face of a pre-existing door.

[0102] In [Fig. 1], only the components of the strip 8 that protrude from the housing 30 on the inner side or pass through the vertical edge of this housing 30 are visible. Thus, only the following components of the strip 8 are visible in [Fig. 1]:

[0103] - a 36 half-turn bolt,

[0104] - a handle 38,

[0105] - deadbolts 42,

[0106] - a 44-inch touchscreen, and

[0107] - a 46 lock cylinder.

[0108] The bolt 36 is movable by the handle 38 from an extended position (shown in Figures 1, 3, 4, 9 and 10) to a retracted position (shown in Figures 5, 11 and 12). The bolt 36 is continuously pushed back towards its extended position by a return spring. A distal end 36d (Figures 9, 10 and 13) of the bolt 36 is beveled so that when the door 4 is slammed from its open position to its closed position, by a process of shape cooperation between the beveled end 36d and a post 40, the bolt 36 is pushed into the housing 30 against the force of the return spring in order to allow the door 4 to reach its closed position. Once the closed position is reached, the spring pushes the bolt 36 back into its extended position and the distal end 36d enters a corresponding cavity in the upright 40.Thus, when the door is in its closed position and the bolt 36 is in its extended position, the bolt 36 holds the door 4 in its closed position.

[0109] The amount 40 is fixed, without any degree of freedom, on the frame of the door 4.

[0110] Each of the deadbolts 42 is movable between an extended position, represented in Figures 1, 3, and 6, and a retracted position shown in Figures 4 and 5. For this purpose, each bolt 42 slides through a respective opening in the wall of the housing 30. To facilitate this, the strip 8 has a bearing 43 (Figures 6 and 7) for each bolt 42, which surrounds the opening through which the bolt 42 moves. In the extended position, a distal end 42d ([Fig. 8]) of each bolt 42 is received in a corresponding cavity in the jamb 40 to lock the door 4 in its closed position. In its retracted position, the distal end 42d of each bolt 42 is retracted inside the housing 30 and located outside the cavity provided in the jamb 40. Thus, when all the bolts 42 are in their retracted positions, the door 4 is unlocked and can be moved from its closed position to its open position after pushing in the handle 38.Unlike bolt 36, the distal ends of bolts 42 are not chamfered. Therefore, they cannot be moved into their retracted positions simply by conforming to the upright 40, as is the case for bolt 36. Here, in its retracted position, the end 42d of each horizontal bolt 42 is flush with the opening in the housing 30, which is bordered by the bearing 43. Thus, in the retracted position, the horizontal bolts 42 obstruct most of the surface of this opening. Typically, for this purpose, end 42d is flat and extends essentially in a vertical plane parallel to the Y and Z directions.

[0111] Here, the strip 8 has at least five bolts 42. In [Fig. 1], four deadbolts 42 are shown in their extended position to make them more visible even when the door 4 is in its open position. For example, each bolt 42 is a cylindrical bar that can be moved translationally between its extended and retracted positions. Of the bolts 42, three move horizontally between their extended and retracted positions. These three bolts 42 are subsequently referred to as "horizontal bolts 42". The other two bolts 42, located respectively at the top and bottom of the strip 8, move vertically between their extended and retracted positions. These two bolts 42 are referred to as "vertical bolts 42".

[0112] The touch screen 44, the lock cylinder 46 and the reading head 48 are accessible by a person located inside the home.

[0113] Figure 2 schematically represents the internal architecture of band 8 as well as various elements connected to this headband 8.

[0114] The band 8 comprises, mainly housed inside the case 30, a bolt mechanism 50 and a mechanism 52 for actuation of the mechanism 50.

[0115] The mechanism 50 includes the bolt 36, the bolts 42 and the various mechanical parts necessary to move them between their extended and retracted positions.

[0116] The actuation system 52 moves the mechanism 50 from a locked state to an unlocked state and then to a free state. In the locked state, all the bolts 42 are in their extended positions. In the unlocked state, all the bolts 42 are in their retracted positions and only the bolt 36 is in its extended position. Thus, in the unlocked state, the door 4 can be opened by turning the handle 38 in a direction that retracts the bolt 36 and then pushing or pulling the door 4. In the free state, all the bolts 36 and 42 are in their retracted positions so that the door can be opened simply by pushing or pulling it and without it being necessary to turn the handle. For this purpose, for example, the system 52 includes a wheel 54 (Figures 9 to 11) meshed with the bolt mechanism 50.When this wheel 54 rotates, in the first direction, it moves the mechanism 50 from its locked state to its unlocked state and then, if the rotation of the wheel 54 continues in the same direction, from its unlocked state to its free state. When this same wheel 54 rotates in the opposite direction, it returns the mechanism 50 from its free state to its unlocked state and then, from its unlocked state to its locked state. Furthermore, the system 52 allows the movement of the wheel 54 to stop when one of the states, chosen from among the locked, unlocked, and free states, is reached.

[0117] In the unlocked state and, here, in the locked state, the mechanism 50 allows manual movement of the bolt 36 to its retracted position using the handle 38.

[0118] To move the mechanism 50 between its different states, System 52 includes at least one actuator selected from the group consisting of a electric motor 60 and cylinder 46. In this particular embodiment, the system 52 comprises both actuators, i.e. both cylinder 46 and electric motor 60.

[0119] Cylinder 46 allows the mechanism 50 to be moved between its different states even if the electric motor 60 is unavailable. The motor 60 is said to be "unavailable" when it cannot be used to move the mechanism 50. Such unavailability may result from a failure of the motor 60 or another element of the actuation system 52. This unavailability may also result, for example, from a power outage affecting the motor 60.

[0120] In this embodiment, the cylinder 46 is a mechanical cylinder without any electronic components that require power to operate. Here, the cylinder 46 is a mechanical cylinder in the European format. In this embodiment, it comprises an inner half-cylinder and an outer half-cylinder accessible, respectively, from the inner and outer sides of the door 4. Thus, the cylinder 46 can be used from both the outer and inner sides of the door 4. For this purpose, the faceplate 8 has a through-hole through the housing 30 in the Y direction, into which the inner half-cylinder of the cylinder 46 is inserted. This through-hole is located opposite a through-hole in the door 4 in the Y direction, into which the outer half-cylinder of the cylinder 46 is inserted.Typically, the cylinder 46 is fixed, without any degree of freedom, to the door 4 by means of a screw whose screw head is only accessible from the vertical edge of the door 4 or the housing 30.

[0121] The cylinder 46 has a rotor 62 mounted for rotation inside a fixed stator 64. The stator 64 is fixed, without any degree of freedom, to the door 4. The rotor 62 has a key channel 66 which opens from the inside and outside. This channel 66 is designed to receive a key. The rotor 62 can be rotated around an axis of rotation parallel to the Y direction only when an authorized key is inserted into the channel 66 and then turned. An authorized key is one that is permitted to move the mechanism 50 to its unlocked state. Conversely, if there is no key inside the channel 66, or if an unauthorized key is present inside the channel 66, the rotor 62 is locked in rotation and cannot rotate around its axis of rotation 63.

[0122] Typically, for this purpose, the cylinder 46 has a first set of pins that can be moved in translation inside the stator 64 and, opposite it, a second set of pins that can be moved in translation inside the rotor 62 by the key inserted into the channel 66. The pins of the first set are also known as "counter-pins". When an authorized key is inserted into the channel 66, the interfaces between the pins of the first and second sets of pins are all located at the interface between the rotor 62 and the stator 64, which allows the rotor 62 to rotate. The interface between the rotor 62 and the stator 64 is also known as the "break line". Conversely, if there is no key in the channel 66 or if an unauthorized key is present, the interfaces between the pins of the first and second sets of pins are not all located at the interface between the rotor 62 and the stator 64, which prevents the rotor 62 from rotating.

[0123] The cylinder 46 also includes a cam 68. The cam 68 is driven in rotation by the rotor 62 when this rotor rotates. It is the rotation of this cam 68 that actuates the movement of the mechanism 50 to its unlocked state and then to its free state.

[0124] The motor 60 has a drive shaft 70. When the motor 60 is commanded to move the mechanism 50 to its unlocked state, It is the rotation of the shaft 70 that drives the movement of the mechanism 50.

[0125] The system 52 includes an output shaft 72 and a mechanism 74 for mechanically coupling the bit 68 and the shaft 70 to this shaft 72 to drive it in rotation. The shaft 72 successively moves the mechanism 50 through its locked, unlocked, and free states when it is rotated in one direction and successively through its free, unlocked, and locked states when it is rotated in the opposite direction.

[0126] The coupling mechanism 74 transmits the rotational movement of the bit 68 to the shaft 72 when the rotor 62 is driven in rotation by the authorized key. Conversely, it transmits the rotational movement of the shaft 70 to the shaft 72 when the motor 60 drives this shaft 70 in rotation. For this purpose, for example, the mechanism 74 is identical to one of those described in the French patent application filed under number FR2203725 on April 21, 2022, by the company COGELEC.

[0127] To control the motor 60, the system 52 includes a control unit 80. This unit 80 includes:

[0128] - a memorandum 82,

[0129] - an 84-bit programmable microprocessor,

[0130] - a transmitter / receiver 86,

[0131] - the 44-inch touchscreen, and

[0132] - an information transmission bus 88 which connects the different Unit 80 components.

[0133] Memory 82 is a non-volatile memory containing the instructions to be executed by the microprocessor 84. Memory 82 contains all the instructions and data necessary to execute the various functions described in this text. In particular, it contains the instructions of an access control software module 92.

[0134] The transmitter / receiver 86 is capable of establishing a wireless communication link with terminal 6 via network 28.

[0135] The badge reader head 48 is connected to the unit 80 to transmit to the module 92 of the unit 80 the access rights read from the memory of a badge 94. The badge 94 is a hand-carrying badge. If the access rights read from the badge 94 correspond to authorized access rights to unlock the strip 8, the module 92 commands the motor 60 to move the mechanism 50 to its unlocked state and then to its free state. Otherwise, the mechanism 50 remains in the locked state. For example, the badge 94 is a transponder badge that transmits the access rights contained in its memory only when it is presented near the reader head 48.

[0136] The control unit 80 is also connected to the following external elements:

[0137] - a videophone 96 for establishing videophone communication with a person located on the outside of door 4,

[0138] - an external 100 badge reader head, and

[0139] - a door opening / closing sensor 102 connected to unit 80 of control and, preferably, housed inside the casing 30.

[0140] Device 96 includes a camera, a loudspeaker and a microphone. This device 96 is, for example, mounted on the outer face of door 4.

[0141] The external head 100 is used to acquire access rights for a person located on the outside of the door 4 and, in response, if the acquired access rights allow the door 4 to be unlocked, the module 92 commands the motor 60 to move the mechanism 50 from its locked state to its unlocked state and then from its unlocked state to its free state. Here, the head 100 is capable of reading the access rights stored in the same badges as those used with the head 48. Thus, the same badge 94 can be used with both the head 48 and the head 100. For this reason, in this embodiment, the head 100 is structurally identical to the head 48 except that it is located on the outside of the door 4. For example, the head 100 is mounted on the outside face of the door 4.

[0142] The unit 80 is also capable of controlling the motor 60 to rotate the shaft 70 in the opposite direction and thus successively return the mechanism 50 from its free state to its unlocked state and then from its unlocked state to its locked state. For example, when, based on measurements from sensor 102, the unit 80 detects that the door 4 has been moved to its open position and that the mechanism 50 is in its free state, the unit 80 controls the motor 60 to automatically return the mechanism 50 to its unlocked state. Thus, when the user closes the door 4 behind them, the bolt 36 is in its extended position, which keeps the door 4 closed. Then, when, based on measurements from sensor 102, the unit detects that the door 4 has been in its closed position for a predetermined time DF and that the mechanism 50 is in its unlocked state, the unit 80 automatically controls the motor 60 to return mechanism 50 to its locked state.

[0143] In particular, unit 80 also controls the movement of mechanism 50 from its locked state to its free state in response to receiving an unlock command transmitted by terminal 6. Conversely, unit 80 controls the movement of mechanism 50 from its free state or from its unlocked state to the locked state in response to receiving a lock command transmitted by terminal 6 or acquired via screen 44.

[0144] The bolt mechanism 50 is now described in more detail with reference to Figures 3 to 13. Subsequently, the description of the mechanism 50 is given in the case of a horizontal bolt 42 located in the upper part of the strip 8. Everything described for this bolt 42 applies to the other horizontal bolts of the strip 8.

[0145] Figures 3 to 5 represent the mechanism 50 in its states, respectively, locked, unlocked and free when a cover of the housing 30 is removed to reveal the inside of the housing 30.

[0146] The housing 30 includes a back plate 120 fixed, without any degree of freedom, to the inner face of the door 4. For example, this back plate is fixed with screws to the inner face of the door 4. Preferably, this back plate is made of metal.

[0147] The mechanism 50 includes an upper rod 130 used to simultaneously move all the bolts 42 that are above a housing 132. The mechanism 50 also includes a lower rod, similar to the rod 130, but used to simultaneously move all the bolts 42 located below the housing 132.

[0148] Here, the rod 130 is mounted, movable only in translation parallel to the Z direction, within the housing 30. For this purpose, it slides in guides not shown. More precisely, the rod 130 moves between a locked position (shown in [Fig. 3]), an unlocked position (shown in [Fig. 4]), and a free position (shown in [Fig. 5]). The locked, unlocked, and free positions of the rod 130 correspond, respectively, to the locked, unlocked, and free states of the mechanism 50. To move successively from its locked position to its unlocked position and then from its unlocked position to its free position, the rod 130 moves in an unlocking direction parallel to the Z direction and directed downwards.

[0149] Here, the rod 130 is composed of an outer segment 134 and an inner segment 136. Segment 134 is entirely located outside the housing 132. Segment 136 is integral with the housing 132 and essentially located inside it. Only the upper end of segment 136, which protrudes above the housing 132, is visible in Figures 3 to 5. The upper end of segment 136 is coupled, without any degrees of freedom, to the lower end of segment 134 to form the rod 130. Segments 134 and 136 can be decoupled from each other to allow a replacement of the 132 housing without having to remove the 134 segment.

[0150] For each horizontal bolt 42, the mechanism 50 includes a sliding link 140 ([Fig. 6]) which transforms the vertical movement of the rod 130 from its locked position to its unlocked position into a horizontal movement of the bolt 42 from its extended position to its retracted position. Furthermore, this same link 140 allows the rod 130 to continue its movement in the unlocking direction, from its unlocked position to its free position, while keeping the bolt 42 immobilized in its retracted position. Figures 6 to 8 illustrate this sliding link 140 in more detail.

[0151] The link 140 includes a support 142 and a notch 144. The bolt 42 is fixed, without any degree of freedom, on the support 142. The support 142 includes a pin 146 received by sliding inside the notch 144. The notch 144 is here cut directly into the segment 134 of the rod 130.

[0152] The notch 144 comprises, successively from bottom to top: a vertical portion 150 ([Fig.7]), an inclined portion 152, then a vertical portion 154.

[0153] When the rod 130 is in its locked position, the pin 146 is located inside the portion 150 which locks the bolt 42 in its extended position.

[0154] Portion 152 is inclined relative to the unlocking direction. More precisely, moving in the X direction, portion 152 moves upward from the upper end of portion 150 to the lower end of portion 154. When rod 130 moves downward from its locked position to its unlocked position, pin 146 first slides in portion 150 until it reaches portion 152. This first movement does not move bolt 42. Then, pin 146 slides along portion 152 until it reaches the lower end of portion 154. The sliding of pin 146 along the inclined portion 152 moves bolt 42 from its extended position to its retracted position. The length of portion 152 is adjusted so that the retracted position is reached at the same time as pawn 146 reaches the upper end of portion 152 and before engaging in portion 154.Thus, in the unlocked position of rod 130, pawl 146 is located at the lower end of portion 154 but has not yet engaged in portion 154.

[0155] When the rod 130 is moved from its unlocked position to its free position, the pin 146 engages in the portion 154 and slides along this portion 154 until the rod 130 reaches its free position. For this purpose, the length of the portion 154 is equal to or greater than the length of the rod 130's stroke between its unlocked and free positions. As explained later, the length of the rod 130's stroke between its unlocked and free positions is sufficient to move the bolt 36 from its extended position to its retracted position. When the pin 146 slides Along section 154, the bolt 42 is stationary and held in its retracted position. Thus, section 154 allows for an overtravel of the rod 130 downwards, along which the bolt 42 is immobilized in its retracted position.

[0156] When the rod 130 moves downwards along this overtravel, the vertical bolts 42 penetrate even further into the housing 30. Thus, in the free position of the rod 130, the distal ends of the vertical bolts 42 are entirely located inside the housing 30 and behind the openings in the housing 30 which they pass through.

[0157] The mechanism 50 also includes a mechanical linkage 160 (Figures 9 to 12) between the segment 136 and the bolt 36. This linkage 160 moves the bolt 36 from its extended position to its retracted position only when the rod 130 moves from its unlocked position to its free position. This linkage 160 also allows:

[0158] - the displacement of the bolt 36 towards its retracted position by cooperation of form between the the 40 upright and the distal end 36d when the rod 130 is in its unlocked position and the door 4 is slammed in its closed position, and

[0159] - the movement of the bolt 36 towards its retracted position using the handle 38 when rod 130 is in its unlocked position.

[0160] For this purpose, the connection 160 is established only from the unlocked position of the rod 130 and remains established as long as the rod 130 is between its unlocked and free positions.

[0161] This link 160 is located inside the housing 132. It is shown in more detail in figures 9 to 13.

[0162] The link 160 includes a lever 162 and a contact face 164 arranged on the segment 136 of the rod 130.

[0163] The lever 162 moves the bolt 36 from its extended position to its retracted position when it is rotated in a retraction direction. For this purpose, the lever 162 is mounted to rotate freely about an axis 166 ([Fig. 13]). The axis 166 is parallel to the Y direction and fixed relative to the housing 30. The lever 162 has an upper end that is permanently engaged in a groove 168 (Figures 12 and 13) machined into the bolt 36.

[0164] Face 164 is configured for:

[0165] - engage directly with lever 162 from the unlocked position of the rod and up to its free position, and

[0166] - to disengage from lever 162 when the rod is between its positions rusted and unlocked.

[0167] When the face 164 is engaged with the lever 162, it rotates the lever in the retraction direction as the rod 130 moves downwards. When the face 164 is disengaged from the lever 162, the bolt 36 is free to move from its position The bolt is extended to its retracted position by the handle 38. Furthermore, in the unlocked position, face 164 also allows the bolt 36 to move to its retracted position. For this purpose, face 164 has an inclined panel 170. Panel 170 is inclined relative to the unlocking direction. Here, viewed from the inside, moving in the X direction, the inclined panel 170 rises upwards.

[0168] The lever 162 includes a roller 172 mounted to rotate freely about an axis parallel to the Y direction and eccentric with respect to the axis 66. The axis of rotation of the roller 172 is fixed, without any degree of freedom, to the lever 162 so that when the face 164 engages with the lever 162, the roller 172 rolls on the inclined face 170, simultaneously causing the rotation of the lever 162 in the retraction direction.

[0169] The housing 132 also includes a follower 180 mounted for rotation about the axis 166. This follower 180 receives the square drive of the handle 38. Thus, when the handle 38 is rotated, the follower 180 rotates simultaneously. The lever 162 can rotate about the axis 166, in the retraction direction, independently of the follower 180.

[0170] The spindle 180 has a bearing face 182 ([Fig.13]) movable between:

[0171] - an engaged state (shown in Figures 9, 10 and 12) in which face 182 is in support on a corresponding bearing face 184 of lever 162, and

[0172] - a disengaged state (shown in Figures 11 and 13) which allows the movement of the lever 162 by the contact face 164 of the rod 130 without rotating the follower 180.

[0173] In the engaged state, the face 182 drives the lever 162 in rotation in the retraction direction when the follower 180 is itself driven in rotation by the handle 38 in the same direction.

[0174] Between the locked and unlocked positions of the rod 130, the face 164 is not in contact with the roller 172 ([Fig. 9]). When the rod 130 reaches its unlocked position, the inclined flat 170 comes into contact with the roller 172 ([Fig. 10]). Then, as the rod 130 continues its movement from its unlocked position to its free position, the roller 172 rolls on the inclined flat 170 and rotates the lever 162 in the retraction direction. The upper end of the lever 162 then brings the bolt 36 into its retracted position ([Fig. 11]) against the spring force that constantly pulls it towards its extended position.

[0175] When the rod 130 is between its locked and unlocked positions, the inclined face 170 is not in contact with the roller 172. Under these conditions, the bolt 36 can be moved into its retracted position by manually operating the handle 38. More precisely, when the handle 38 is pressed, it rotates the follower 180 in the retraction direction. The face 182 then pushes the face 184 of the lever 162, which rotates the lever 162 in the retraction direction and thus moves the bolt 36 from its extended position to its retracted position. Similarly, when the rod 130 is In its unlocked position, the bolt 36 can still be moved to its retracted position using the handle 38 ([Fig. 12]). Furthermore, in the unlocked position of the rod 130, the mechanism 50 is in its unlocked state, allowing the door 4 to be slammed shut. In this case, the bolt 36 is moved into its retracted position by the interaction between its distal end 36d and the jamb 40 before automatically returning to its extended position, under the action of the return spring, as soon as it is aligned with the corresponding recess in the jamb 40. Thus, after the door 4 has been slammed shut, it is held in its closed position by the bolt 36 even if the bolts 42 are in their retracted positions.

[0176] Chapter III: Variants:

[0177] Curtain rod variants:

[0178] Alternatively, segments 134 and 136 of the rod 130 form a single block of material. In this case, the housing 132 cannot be removed without removing segment 134.

[0179] The rod 130 may also include a stop that prevents the latch bolt 36 from moving towards its retracted position until the deadbolts 42 are in their retracted positions. Conversely, when the rod is in its unlocked position or between its unlocked and free positions, the stop no longer prevents the latch bolt 36 from moving towards its retracted position, either by means of the handle 38 or by the interaction between the distal end 36d of the bolt 36 and the jamb 40. For example, this stop functions like the stop 58 of application EP2674555.

[0180] Variants of the mechanical linkage 160 between the rod and the latch bolt:

[0181] Other embodiments of the linkage 160 are possible. For example, the positions of the roller 172 and the inclined plate 170 are reversed. In this case, the axis of the roller 172 is fixed to the rod 130 and the inclined plate 170 is mounted on the lever 162.

[0182] In a simplified embodiment, the roller 172 is replaced by a pin fixed, without any degree of freedom, to the lever 162.

[0183] This connection 160 can also be made without using the lever 162. For example, the bolt 36 has a pin that extends in a direction parallel to the Y direction. This pin is located inside the housing 132. The rod 130 has an inclined face that rises as it moves in the X direction. This inclined face is arranged so that the pin of the bolt 36 comes into contact with the lower part of this inclined face only when the rod 130 is in its unlocked position. In the unlocked position, contact between the pin and the inclined face of the rod is established while leaving the bolt 36 in its extended position. This contact does not prevent the bolt 36 from being moved to its retracted position using the handle 38 because it is located only on the left side of the pawn. Then, when the rod 130 is moved from its unlocked position to its free position, the pawl slides along the inclined face which moves the latch bolt to its retracted position.

[0184] This connection 160 can also be established via one or more additional intermediate parts. For example, segment 136 of the rod 130 has a rack that engages an intermediate pinion only when the rod moves between its unlocked and free positions. The axis of this additional pinion is fixed and parallel to the Y direction. This additional pinion is permanently meshed with a gear or portion of a gear fixed without any degrees of freedom to the lever 162. This gear or portion of a gear drives the lever 162 in rotation in the retraction direction when the rod 130 is moved from its unlocked position to its free position.

[0185] Other variants:

[0186] The number of deadbolts can be changed. In particular, the vertical deadbolts can be removed. In a very simplified embodiment, the lock has only one horizontal deadbolt. In this latter case, the lock is no longer a multipoint lock.

[0187] Other embodiments of the sliding connection 140 between the horizontal bolt 42 and the rod 130 are possible. For example, the positions of the notch 144 and the pin 146 can be reversed. In this case, the notch 144 is located on the support 142 and the pin 146 on the rod 130.

[0188] The support 142 can be omitted. In this case, the pin 146 is, for example, directly fixed to the bolt 42.

[0189] The vertical portion 150 of the notch 144 which locks the bolt 42 in its extended position may be omitted. The vertical portion 154 may be made differently. For example, the vertical portion 154 is replaced by an additional inclined portion that extends the inclined portion 152 in the X direction. Consequently, when the rod 130 moves from its unlocked position to its free position, this displaces the horizontal bolt 42 further into the housing 30 than necessary to unlock the door. Thus, in this case, in the unlocked position of the rod 130, the distal end 42d of the bolt 42 is flush with the outer face of the housing 30, which is sufficient to unlock the door 4. In the free position of the rod 130, the distal end 42d of the bolt 42 is pushed into the housing 30.

[0190] In another embodiment, the lever 162 and the follower 180 are fixed to each other without any degree of freedom. For example, the lever 162 and the follower 180 form a single block of material. In this case, when the lever 162 is rotated by the rod 130, the handle 38 rotates simultaneously.

[0191] In a simplified variant, the bolt 36 is only movable by the system 52 The drive mechanism 50 with bolt is not movable using the handle. For example, the handle 38 is replaced by a door knob fixed without any degree of freedom on the door 4.

[0192] The lock 8 can take forms other than that of a door strip. For example, in another embodiment, the lock is not a multipoint lock so that on the inside, it does not form a strip that extends over the entire height of the door.

[0193] In a simplified variant, the electric motor 60 is omitted. In this case, the movement of the bolt mechanism 50 can only be actuated using the cylinder 46. In this case, the control unit 80 can also be omitted so that the strip 8 can only be unlocked using a mechanical key.

[0194] Conversely, cylinder 46 can be omitted so that the only actuator of the rod 130 is then the electric motor 60.

[0195] Cylinder 46 can also be an electronic lock cylinder, for example, in European format.

[0196] Several of the variants described above can be combined in the same embodiment.

[0197] Chapter IV: Advantages of the embodiments described:

[0198] Using an overtravel of the rod 130 to actuate the movement of the latch bolt 36 to its retracted position, after first moving the bolts 42 to their retracted positions, makes it possible to obtain a bolt mechanism that functions like that described in application FR2821381. In particular, it is the same cylinder 46 or the same electric motor 60 that moves the rod 130 from its locked position to its unlocked position and from its unlocked position to its free position. Moving the latch bolt to its retracted position by slamming the door is also still possible. However, the bolt mechanism described here is less complex than that of application FR2821381. Indeed, in the bolt mechanism described here, it is not necessary to use a pinion and rack with a special conformation that allows the pinion to continue to rotate while the deadbolts are locked in their retracted positions.

[0199] Establishing the connection 160 between the latch bolt 36 and the rod 130 via the lever 162 creates a very robust connection with a small footprint in the Y direction. Furthermore, using a contact face 164 of the rod 130 that bears directly against the lever 162 allows the rod 130 to be easily connected to the lever 162 when the rod 130 is moved between its unlocked and free positions. This further simplifies the implementation of the rod mechanism.

[0200] The fact that the lever has a roller 172 which rolls on the inclined face 170 of the rod when the rod moves from its unlocked position to its free position, limits friction and therefore facilitates the movement of the rod to its free position.

[0201] Allowing the latch bolt 36 to move towards its retracted position using the handle 38 in the unlocked position of the rod makes it possible to open the door without using the lock cylinder or the electric motor for this purpose.

[0202] The fact that the lever 162 has a movable bearing face 184 between the engaged and disengaged states allows the latch bolt 36 to be moved towards its retracted position using the rod 130 without simultaneously causing a movement of the handle 38.

[0203] The fact that the notch 144 has a vertical portion 154 allows the distal end 42d to remain flush with the outer wall of the housing 30 when the rod 130 moves between its locked and free positions. Thus, the opening through which the deadbolt extends is always kept largely closed, which limits the accumulation of dirt inside the housing 30.

[0204] The fact that the actuators 36, 60, the segment 136 of the rod 130, the latch bolt 36 and the mechanical linkage 160 between the rod and the latch bolt are all housed inside the same replaceable housing 132, simplifies the maintenance and repair of the lock.

[0205] The fact that the lock is in the form of a door strip containing all the parts of the lock in a single housing 30 simplifies its installation on a door.

Claims

1. Demands Door lock including: - a movable deadbolt (42) between: - an extended position, in which the deadbolt is able to lock the door in a closed position, by means of a corresponding cavity formed in a vertical part of a stile attached to a door frame, and - a retracted position in which the deadbolt allows the door to be opened, - a rod (130) that can be moved in translation, in an unlocking direction, from a locked position to an unlocked position, - a sliding link (140) between the rod and the deadbolt, capable of moving the deadbolt from its extended position to its retracted position when the rod moves from its locked position to its unlocked position, - an actuator (46, 60) capable of driving the movement of the rod from its locked position to its unlocked position, this actuator being chosen from the group consisting of a lock cylinder (46) and an electric motor (60), - a movable latch bolt (36) between: - an extended position, in which the latch bolt is able to hold the door in the closed position, through a form-based cooperation with a corresponding cavity in the jamb attached to the door frame, and - a retracted position in which the latch bolt allows the door to be opened, this latch bolt having a beveled distal end (36d) capable, by cooperation of form with the upright attached to the frame, of moving the latch bolt from its extended position to its retracted position when the door is slammed shut, - a spring that constantly pulls the latch bolt towards its extended position, characterized in that: - the sliding link (140) between the rod (130) and the deadbolt (42) is suitable for allowing the rod to continue its movement in the unlocking direction, from its unlocked position to a free position, - the actuator (46, 60) is able, after moving the rod from its locked position to its unlocked position, to cause the rod to move to its free position, and - the lock includes a mechanical link (160) between the rod and the latch bolt able: - to move the latch bolt from its extended position to its retracted position when the rod is moved by the actuator from its unlocked position to its free position, and - in the unlocked position of the rod, to allow the latch bolt to move to its retracted position by cooperation of form with the upright attached to the frame.

2. Lock according to claim 1, wherein the mechanical linkage comprises: - a lever (162) capable, when rotated in a retraction direction of the latch bolt, of moving the latch bolt from its extended position to its retracted position, - a contact face (164) arranged on the rod and shaped: - to engage directly with the lever and drive it in rotation in the retraction direction of the latch bolt only when the rod moves from its locked position to its free position, and - to allow the latch bolt to be freely moved from its extended position to its retracted position by form cooperation with the jamb as long as the rod is in its unlocked position.

3. Lock according to claim 2, wherein: - the contact face of the rod has a slope (170) with respect to the unlocking direction, and - the lever has a roller (172) mounted freely to rotate about an axis eccentric with respect to the axis of rotation of the lever, this eccentric axis being fixed, without any degree of freedom, to the lever, this roller being able to roll on the slope when the contact face of the rod engages directly with the lever to drive it in rotation in the direction of retraction of the latch bolt.

4. Lock according to any one of the preceding claims, wherein the mechanical linkage (160) is also capable, in the unlocked position of the rod, of permitting the movement of the latch bolt to its retracted position by means of a handle.

5. Lock according to claim 4, wherein: - the lock includes a follower (180) adapted to receive the handle, this follower being mounted to rotate about an axis of rotation of the follower, - the lever (162) is mounted to rotate freely about the axis of rotation of the follower and the lever includes a bearing face (184) movable between: - an engaged state in which it bears against a corresponding bearing face (182) of the follower to rotate the lever in the retraction direction when the follower is rotated by the handle in this retraction direction, and - a disengaged state which allows the lever to move by the contact face (164) of the rod without rotating the follower.

6. A lock according to any one of the preceding claims, wherein: - the lock comprises an outer casing (30) in which an opening (43) is provided, into which the deadbolt is received, a distal end (42d) of the deadbolt protruding beyond this opening in its extended position and flush with this opening in its retracted position, and - the sliding link (140) between the rod and the deadbolt includes a notch (144) and a pin (146) received by sliding inside this notch, the notch having an inclined portion (152) with respect to the unlocking direction and a portion (154) parallel to the unlocking direction, the inclined and vertical portions being configured so that the pin slides along the inclined portion when the rod moves from its locked position to its unlocked position and then slides along the vertical portion when the rod moves from its unlocked position to its free position while keeping the deadbolt immobilized in its retracted position.

7. A lock according to any one of the preceding claims, wherein: - the curtain rod includes: - an outer segment (134) in which a part (144) of the sliding connection between the rod and the deadbolt is formed, and - an inner segment (136) in which a part (170) of the mechanical link between the rod and the latch bolt is formed, the outer and inner segments being reversibly coupled and decoupled from each other, - the lock includes a replaceable lock housing (132) comprising,

8.

9. assembled together: - the inner segment (136) of the rod, the outer segment of the rod being entirely outside this housing, - the actuator (46, 60), - the latch bolt (36), - the mechanical link (160) between the lower part of the rod and the latch bolt. Lock according to any one of the preceding claims, wherein the lock is a door strip (8). A bolt mechanism (50) for making a lock according to claim 1, this bolt mechanism comprising: - a movable deadbolt (42) between: - an extended position, in which the deadbolt is able to lock the door in a closed position, by means of a corresponding cavity formed in a vertical part of a stile attached to a door frame, and - a retracted position in which the deadbolt allows the door to be opened, - a rod (130) that can be moved in translation in an unlocking direction from a locked position to an unlocked position, - a sliding link (140) between the rod and the deadbolt, capable of moving the deadbolt from its extended position to its retracted position when the rod moves from its locked position to its unlocked position, - a movable latch bolt (36) between: - an extended position, in which the latch bolt is able to hold the door in the closed position, through a form-based cooperation with a corresponding cavity in the jamb attached to the door frame, and - a retracted position in which the latch bolt allows the door to be opened, this latch bolt having a beveled distal end (36d) capable, by cooperation of form with the upright attached to the frame, of moving the latch bolt from its extended position to its retracted position when the door is slammed shut, - a spring that constantly pulls the latch bolt towards its extended position, characterized in that: - the sliding link (140) between the rod and the deadbolt is suitable for allowing the rod to continue its movement in the unlocking direction, from its unlocked position to a free position, and - the lock includes a mechanical link (160) between the rod and the latch bolt suitable for: - to move the latch bolt from its extended position to its retracted position when the rod is moved by the actuator from its unlocked position to its free position, and - in the unlocked position of the rod, to allow the movement of the latch bolt towards its retracted position by cooperation of form with the upright attached to the frame.

Images