Lock cylinder

Abstract

The present invention relates generally to a smart cylinder lock assembly, comprising: - a central cam section (A), comprising a cam (10) for locking and unlocking the door, the central cam section being configured to engage with both the outer knob and the inner knob; - an outer section (B) comprising an outer knob (20), the outer knob being configured for manual operation and engaging with the cam of the central cam section for locking and unlocking the door; - an inner section (C) comprising an inner knob (30), the inner knob being configured for manual operation and engaging with the cam of the central cam section for locking and unlocking the door, wherein the inner knob (3) comprises and houses a controller with a wireless communication module for remote locking and unlocking operations; wherein the inner knob and the outer knob are arranged for rotating independently of each other, allowing for independent operation from either side of the door, and wherein at least the outer knob is arranged to detach from the central cam section to allow free rotation of the outer knob, independently of the central cam section; wherein the smart cylinder lock assembly is characterized by the inner section and outer section being configured to be mechanically attached to and detached from the central cam section through an attachment mechanism; and wherein the smart cylinder lock assembly further comprises: - one or more extension piece (D), arranged to be mechanically attached to the attachment mechanism between the inner section and the central cam section and / or between the outer section and the central cam section, to extend the length of the cylinder lock to accommodate doors of varying thicknesses.

Description

[0001] Description

[0002] Technical Field

[0003] The present invention relates generally to lock cylinders and more specifically to lock cylinder systems designed to fit various door thicknesses.

[0004] Background of the Invention

[0005] Lock cylinders are important components in door security, widely used in residential, commercial, and industrial settings. In recent years, the advent of smart lock technology has added a new dimension to lock cylinder design. Smart locks, which can be operated remotely using wireless communication devices such as smartphones or smartwatches, offer enhanced convenience and security. However, integrating these advanced features into lock cylinders presents several challenges. Electronic components must be housed in a way that protects them from environmental factors, such as weather and tampering, while ensuring they do not compromise the lock's mechanical integrity and security.

[0006] Traditional smart lock designs often place sensitive electronics in the outer knob or other exposed components, making them vulnerable to physical damage and tampering. Moreover, these designs can be complex and costly to produce, with intricate electronic sensors and actuators that require precise calibration and protection. This complexity can lead to higher failure rates and maintenance costs, detracting from the overall reliability and user experience.

[0007] More inventive types of smart lock designs are characterized by having a design in which these sensitive electronics are located in the inner knob, which makes them far less vulnerable to physical damage and tampering. Such designs however have other design challenges to ensure the security and robustness. Integrating smart lock technology while ensuring they fit various door configurations has proven challenging. Both designs, with electronics in the inner knob or outer knob, face difficulties in coping with these various configuration while protecting electronic components from environmental factors and tampering without compromising the lock's mechanical integrity.

[0008] Moreover, the need to accommodate different door thicknesses means that each lock design must be produced in multiple sizes. This multiplies the inventory requirements and complicates the manufacturing process, resulting in higher costs and logistical inefficiencies. For end-users, this means navigating a complex market with numerous products, making it difficult to select and install the appropriate lock for their specific door configuration. This situation highlights the drawbacks of current smart lock systems and underscores the necessity for more versatile and cost- effective solutions.

[0009] As such, it is an objective of the present invention to provide a smart lock cylinder which obviates at least some of the above mentioned drawbacks. More in particular, it is a further object to provide a smart lock cylinder which can accommodate different door thicknesses, can be installed by the end-users, and having a design which doesn’t compromise on vulnerability to physical damage and tampering.

[0010] Summary

[0011] In a first aspect, there is provided a smart cylinder lock assembly, comprising: a central cam section (A), comprising a cam (10) for locking and unlocking the door, the central cam section being configured to engage with both the outer knob and the inner knob; an outer section (B) comprising an outer knob (20), the outer knob being configured for manual operation and engaging with the cam of the central cam section for locking and unlocking the door; an inner section (C) comprising an inner knob (30), the inner knob being configured for manual operation and engaging with the cam of the central cam section for locking and unlocking the door, wherein the inner knob (3) comprises and houses a controller with a wireless communication module for remote locking and unlocking operations; wherein the inner knob and the outer knob are arranged for rotating independently of each other, allowing for independent operation from either side of the door, and wherein at least the outer knob is arranged to detach from the central cam section to allow free rotation of the outer knob, independently of the central cam section; wherein the smart cylinder lock assembly is characterized by the inner section and outer section being configured to be mechanically attached to and detached from the central cam section through an attachment mechanism; and wherein the smart cylinder lock assembly further comprises: one or more extension piece (D), arranged to be mechanically attached to the attachment mechanism between the inner section and the central cam section and / or between the outer section and the central cam section, to extend the length of the cylinder lock to accommodate doors of varying thicknesses.

[0012] One aspect of the present invention relates to a smart cylinder lock assembly. A smart cylinder lock assembly may be understood as a lock mechanism that includes electronic components enabling remote operation and adaptability to different door configurations while maintaining robust security features.

[0013] It may be provided that a smart cylinder lock assembly comprises a central cam section, comprising a cam for locking and unlocking the door. The central cam section is configured to engage with both the outer knob and the inner knob. A central cam section can be understood as the core part of the lock cylinder that facilitates the locking mechanism through rotational movement. This arrangement offers a secure and reliable method for actuating the lock mechanism, ensuring that the lock can be operated efficiently from either side of the door.

[0014] Furthermore, it may be provided that the smart cylinder lock assembly comprises an outer section including an outer knob, the outer knob being configured for manual operation and engaging with the cam of the central cam section for locking and unlocking the door. An outer section may be understood as the part of the lock accessible from the exterior side of the door, while the outer knob refers to the handle or rotary component used to manually operate the lock. This arrangement allows for intuitive manual operation of the lock, providing a straightforward user interface for engaging and disengaging the lock mechanism.

[0015] Additionally, it may be provided that the smart cylinder lock assembly comprises an inner section comprising an inner knob, the inner knob being configured for manual operation and engaging with the cam of the central cam section for locking and unlocking the door. The inner knob houses a controller with a wireless communication module for remote locking and unlocking operations. An inner section may be understood as the part of the lock accessible from the interior side of the door, while a controller refers to the electronic unit that manages the lock's functions, and a wireless communication module allows for remote interaction. This arrangement enhances the convenience of the lock by enabling remote control, thus allowing users to operate the lock from a distance using smart devices, which improves accessibility and flexibility in managing door security.

[0016] It may be provided that the inner knob and the outer knob are arranged for rotating independently of each other, allowing for independent operation from either side of the door, and that at least the outer knob is arranged to detach from the central cam section to allow free rotation of the outer knob independently of the central cam section. This arrangement means that the inner and outer knobs can function without depending on the other’s position, enhancing security by ensuring that unauthorized manipulation of one side does not compromise the overall lock mechanism.

[0017] Moreover, it may be provided that the smart cylinder lock assembly is characterized by the inner section and outer section being configured to be mechanically attached to and detached from the central cam section through an attachment mechanism. An attachment mechanism may be understood as an element or method for securely connecting and disconnecting parts. This arrangement simplifies the installation and maintenance of the lock assembly, as it allows for easy assembly and disassembly without the need for specialized tools, thus making the lock more user-friendly and adaptable to various door setups. It may also be provided that the smart cylinder lock assembly further comprises one or more extension pieces, arranged to be mechanically attached to the attachment mechanism between the inner section and the central cam section and / or between the outer section and the central cam section, to extend the length of the cylinder lock to accommodate doors of varying thicknesses. Extension pieces can be understood as additional components that lengthen the lock cylinder to fit different door thicknesses. This arrangement ensures that the lock assembly can be adjusted to fit a wide range of door dimensions, thereby reducing the need for multiple lock sizes and simplifying inventory and production processes. This adaptability enhances the lock's versatility, making it suitable for various applications and reducing logistical complexities for manufacturers and consumers alike.

[0018] The smart cylinder lock with extension pieces according to the present disclosure not only allows for easy assembly and allows for easy adaptation to various door configurations, the unique design also enables the simultaneous coupling of the inner shaft, outer shaft, and casing with a single motion, enhancing user convenience and simplifying installation.

[0019] In a second aspect, there is provided an extension piece (D) for a smart cylinder lock assembly according to claim 1 , the extension piece (D) being configured to be mechanically attached to an attachment mechanism between a central cam section (A) and one or more of an outer section (B) and an inner section (C), wherein the extension piece is arranged to extend the length of the cylinder lock to accommodate doors of varying thicknesses.

[0020] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect comprises two extension pieces of equal length to be attached at either side of the central cam section and the outer section and inner section respectively. An extension piece may be understood as an additional component designed to increase the length of the lock cylinder. This arrangement allows for balanced extension on both sides of the central cam section, ensuring uniform distribution of the assembly’s lengthening capability. It may be provided that the smart cylinder lock assembly according to the first and / or second aspect comprise one or more symmetrical extension piece (D). This symmetry ensures that any extension piece can be placed on either side, thereby reducing the number of different parts needed and preventing incorrect assembly. This enhances ease of use and simplifies the installation process. This may be achieved by a symmetric central cam section.

[0021] It may be provided that the smart cylinder lock assembly according the first and / or second aspect features an attachment mechanism configured as a mechanical interlock having mating shapes, for interconnecting the one or more extension pieces with one or more of the central cam section, the outer section, and the inner section. A mechanical interlock with mating shapes refers to a connection method where components are shaped to fit precisely with each other, forming a secure joint. This arrangement ensures a robust and reliable connection between the various sections of the lock assembly, reducing the risk of disconnection or misalignment during use. The technical advantage of this configuration is the enhanced durability and ease of assembly, allowing users to achieve a secure fit without the need for additional tools or fasteners.

[0022] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect has an attachment mechanism arranged for interconnecting by sliding the one or more extension pieces together with one or more of the central cam section, the outer section, and the inner section. This sliding mechanism enables components to be easily joined by aligning and sliding them into place. One advantage of this arrangement is the simplicity and speed of assembly, allowing users to quickly and accurately connect the extension pieces without complex procedures. This reduces installation time and potential errors, ensuring a reliable and user-friendly assembly process.

[0023] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect has an attachment mechanism arranged for interconnecting through sliding the one or more extension pieces and the central cam section, the outer section, and the inner section into each other, and rotating the pieces and sections for locking. This combined sliding and rotating mechanism provides an additional level of security by requiring a rotational motion to lock the components together after they have been slid into place. The technical advantage of this arrangement is the increased security of the connection, as it prevents accidental disassembly and enhances the mechanical interlock’s resistance to tampering and vibration.

[0024] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect features an attachment mechanism configured with a dovetail shape, wherein the one or more extension pieces and the sections interlock through complementary dovetail formations. A dovetail shape refers to a joint configuration where wedge-shaped components fit together to form a tight and secure connection. This arrangement provides one advantage of increased strength and stability in the connection, as the dovetail shape resists pulling apart and ensures a precise fit. This enhances the lock assembly's robustness and reliability.

[0025] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect comprises an attachment mechanism featuring a bayonet interlock, wherein the one or more extension pieces and the sections interconnect through a bayonet fitting arranged for inserting and twisting the components to lock them together. A bayonet interlock involves inserting parts together and then twisting them to secure the connection. This arrangement offers one advantage of quick and secure assembly, as the twisting action locks the components in place, preventing accidental disassembly. This enhances the ease of use and reliability of the lock assembly.

[0026] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect further comprises a shaft extending from the outer knob to the inner knob, wherein the shaft is configured to transmit rotational motion from the outer knob to the inner knob for coordinated operation. A shaft may be understood as a rod or spindle that transmits motion. This arrangement ensures synchronized movement between the knobs, providing one advantage of coordinated operation, which enhances the user experience by allowing smooth and consistent control of the lock from either side of the door.

[0027] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect includes a shaft configured to allow for independent rotation of the inner knob and the outer knob when the outer knob is detached from the central cam section. This arrangement ensures that the disconnection of the outer knob does not affect the operation of the inner knob, providing one advantage of maintaining functionality and security even if one side of the lock is compromised. This enhances the overall reliability and robustness of the lock assembly.

[0028] It may be provided that the smart cylinder lock assembly according the first and / or second aspect has a shaft configured to engage with the controller housed in the inner knob to provide rotational feedback or control signals for remote operation. This arrangement allows the shaft to interact with the electronic controller, providing one advantage of enabling advanced features such as feedback on lock status and remote control, which enhances the functionality and convenience of the smart lock system.

[0029] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect features one or more extension pieces further comprising a shaft section configured to extend between the inner section and the central cam section, and / or between the outer section and the central cam section, the shaft section being configured to transmit rotational motion between the outer knob and the inner knob. This arrangement ensures that the extension pieces also facilitate the transmission of motion, providing one advantage of maintaining the lock’s operational integrity across different door thicknesses, enhancing the adaptability and functionality of the smart lock assembly.

[0030] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect includes one or more extension pieces provided in different standardized lengths to conform to various standardized door thicknesses. This arrangement ensures that the lock can be adapted to fit a wide range of door sizes, providing one advantage of versatility and ease of installation, which simplifies the selection process for users and reduces the need for multiple product variations, thereby streamlining manufacturing and inventory management.

[0031] It may be provided that the smart cylinder lock assembly according to the first and / or second aspect includes one or more extension pieces provided in different standardized lengths to conform to various standardized door thicknesses. This arrangement ensures that the lock can be adapted to fit a wide range of door sizes, providing one advantage of versatility and ease of installation, which simplifies the selection process for users and reduces the need for multiple product variations, thereby streamlining manufacturing and inventory management.

[0032] The above-mentioned and other features and advantages of the invention are illustrated in the following description with reference to the enclosed drawings which are provided by way of illustration only and which are not limitative to the present invention.

[0033] Brief description of drawings

[0034] Fig. 1. shows an exploded view of a smart cylinder lock assembly in accordance with an aspect of the present disclosure;

[0035] Fig. 2. shows a configuration of a smart cylinder lock assembly in accordance with an aspect of the present disclosure;

[0036] Fig. 3 shows another configuration of a smart cylinder lock assembly in accordance with an aspect of the present disclosure;

[0037] Fig. 4 shows an cross-sectional view of the smart cylinder lock assembly of Fig. 3;

[0038] Fig. 5 shows an cross-sectional view of the smart cylinder lock assembly of Fig. 3.

[0039] Detailed description

[0040] Figure 1 schematically shows an exploded view of a smart cylinder lock assembly 100 in accordance with an aspect of the present disclosure. The smart cylinder lock assembly 100 is modularly designed and comprises a central cam section A comprising a cam 10 for locking and unlocking a door, an outer section B comprising an outer knob 20, an inner section C comprising an inner knob 30, and two extension pieces D to extend the length L of the cylinder lock 12 to accommodate doors of varying thicknesses.

[0041] The inner section C and the outer section B are configured to be mechanically attached to and detached from the central cam section A through an attachment mechanism 11. An embodiment, wherein the inner section C, the cam section A, and the outer section B are mechanically attached to each other is shown in figure 2.

[0042] Furthermore the extension piece D is configured to be mechanically attached to and detached from the attachment mechanism 11 between the inner section C and the central cam section (A) and / or between the outer section (B) and the central cam section A. An embodiment, wherein a first extension piece D is mechanically attached between the inner section C and the cam section A, and a second extension piece D is mechanically attached between the outer section B and the scam section A, is shown in figure 3.

[0043] One or more extension pieces D can be attached in order to extend the length L of the cylinder lock 12 of the smart cylinder lock assembly 100 in order to accommodate doors of varying thicknesses. The length of each extension piece D can be varying and are provided in different standardized lengths to conform to various standardized door thicknesses. An extension piece D can be attached to one side or on either side of the central cam section and the outer section B and / or inner section C respectively. Furthermore, more than two or more extension pieces D can be mechanically attached to each other.

[0044] The attachment mechanism 11 is configured as a mechanical interlock having mating shapes for interconnecting the one or more extension pieces D with one or more of the central cam section A, the outer section B, and the inner section C. Each respective attachment mechanism 11 is configured with a dovetail shape 11 B arranged on a first section A, B, C and / or extension piece D for interlocking through a complementary dovetail formations 11 A arranged on a complementary second section A, B, C and / or extension piece D. Other embodiments for the attachment mechanism 11 , for example wherein the attachment mechanism 11 comprises a bayonet fitting, are possible.

[0045] The attachment mechanism 11 is interconnected by firstly sliding the respective section A, B, C and / or extension piece D into the complementary section A, B, C and / or extension piece D. Subsequently, the section A, B, C and / or extension piece D are rotated for interlocking the attachment mechanism 11 , as indicated by the arrows in figure 1 , such that the dovetail shape 11 B interlocking engages with the complementary dovetail formations 11 A. This results in withstanding axial tensile forces. Furthermore a set screw 15 is tightened in the bottom of a respective section A, B, C and / or extension piece D for blocking the rotation of the cylinder sections relative to each other.

[0046] The inner knob 30 is configured for manual operation and engaging with the cam 10 of the central cam section A for locking and unlocking the door via an first shaft 31. The first shaft 31 is mechanically connected to the cam 10 and is configured to transmit rotational motion from the inner knob 30 to the cam 10. The first shaft 31 is indicated in figure 4 by the hatched area. The inner knob 30 furthermore comprises and houses a controller 40 with a wireless communication module for remote locking and unlocking operations.

[0047] The outer knob 20 is mechanically connected to a second shaft 21 extending from the outer knob 20 to the inner knob 30, wherein the second shaft 21 is configured to transmit rotational motion from the outer knob 20 to the inner knob 30 for coordinated operation. The second shaft 21 is indicated in figure 5 by the plane filling with diagonal lines. The first shaft 31 and the second shaft 21 are arranged concentric relative to each other and are arranged to rotate independently of each other.

[0048] The outer knob 20 can be mechanical coupled to inner knob 30, via the second shaft 21 , by a mechanical clutch unit 50. In a coupled state of the mechanical clutch unit 50, the outer knob is configured for manual operation and engaging with the cam 10 of the central cam section A, via the second shaft 21 and the outer shaft 31 , for locking and unlocking the door. This enables a user to lock and unlock the door from both the inside of the door via the inner knob 30 and from the outside of the door via the outer knob 20.

[0049] Furthermore, in the coupled state of the mechanical clutch unit 50, the second shaft 21 engages with the controller 40 housed in the inner knob 30 to provide rotational feedback or control signals for remote operation.

[0050] In an uncoupled state of the mechanical clutch unit 50, the inner knob 30 and the outer knob 20 can rotate independently of each other. In the uncoupled state, the outer knob 20 is detached from the central cam section A and the outer knob 20 can rotate freely, independently of the central cam section A. In this state, a user is not able to lock or unlock the door from the outside of the door via the outer knob 20.

[0051] The inner section C, the outer section B and the extension piece D comprise a second shaft section 22 protruding from the respective section B, C, D. The skilled person will appreciate that the shape of the protruding shaft sections 22 and receiving shaft section 23 shown in the figures is merely an example, and that other variants are also covered by the appending claim. They may also have other form-locked connection, such as a square, polygon, or star shape, second shaft section 22 is arranged to engage with a complementary second shaft receiving section 23 of the central cam section A or the extension piece D. Furthermore, the central cam section A and the extension piece D comprise a first shaft section 32 protruding from the respective section A, D. The first shaft section 32 is arranged to engage with a complementary first shaft receiving section 33 of the inner section C, the outer section B or the extension piece D.

[0052] In the mechanically attached state of the sections A, B, C, D, the first shaft sections 32 extend between the respective sections A, B, C, D and the complementary neighbouring section A, B, C, D, thereby realizing the common interconnected first shaft 31 of the smart cylinder lock assembly 100 for transmitting rotational motion between the inner knob 20 and the cam 10. Furthermore, in the mechanically attached state of the sections A, B, C, D, the second shaft sections 22 extend between the respective sections A, B, C, D and the complementary neighbouring section A, B, C, D, thereby realizing the common interconnected second shaft 21 of the smart cylinder lock assembly 100 for transmitting rotational motion between the outer knob 20 and the inner knob 30.

[0053] The present disclosed invention is applicable to new lock designs as well as retrofitting conventional cylinder locks, deadbolt locks or rim locks. The present disclosed lock system is applicable in consumer home applications as well as professional applications including escape route use cases.

[0054] While several inventive embodiments have been described and illustrated herein, those of ordinary skill in the art will readily envision a variety of other means and / or structures for performing the function and / or obtaining the results and / or one or more of the advantages described herein, and each of such variations and / or modifications is deemed to be within the scope of the inventive embodiments described herein.

Claims

CLAIMS1. A smart cylinder lock assembly (100), comprising: a central cam section (A), comprising a cam (10) for locking and unlocking the door, the central cam section (A) being configured to engage with both an outer knob (10) and an inner knob (30); an outer section (B) comprising the outer knob (20), the outer knob (20) being configured for manual operation and engaging with the cam (10) of the central cam section (A) for locking and unlocking the door; an inner section (C) comprising the inner knob (30), the inner knob (30) being configured for manual operation and engaging with the cam (10) of the central cam section (A) for locking and unlocking the door, wherein the inner knob (30) comprises and houses a controller (40) with a wireless communication module for remote locking and unlocking operations; wherein the inner knob (30) and the outer knob (20) are arranged for rotating independently of each other, allowing for independent operation from either side of the door, and wherein at least the outer knob (20) is arranged to detach from the central cam section (A) to allow free rotation of the outer knob (20), independently of the central cam section (A); wherein the smart cylinder lock assembly (100) is characterized by the inner section (C) and outer section (B) being configured to be mechanically attached to and detached from the central cam section (A) through an attachment mechanism (11); and wherein the smart cylinder lock assembly (100) further comprises: one or more extension piece (D), arranged to be mechanically attached to the attachment mechanism (11) between the inner section (C) and the central cam section (A) and / or between the outer section (B) and the central cam section (A), to extend the length (L) of the cylinder lock (12) to accommodate doors of varying thicknesses.

2. The smart cylinder lock assembly (100) according to claim 1 , wherein the assembly comprises two extension pieces (D) of equal length to be attached at either side of the central cam section (A) and the outer section (B) and inner section (C) respectively.

3. The smart cylinder lock assembly (100) according to any of the previous claims, wherein the attachment mechanism (11) is configured as a mechanical interlock having mating shapes, for interconnecting the one or more extension piece (D) with one or more of the central cam section (A), the outer section (B), and the inner section (C).

4. The smart cylinder lock assembly (100) according to claim 3, wherein the attachment mechanism (11) is arranged for interconnecting with, by sliding the one or more extension piece (D) together with one or more of the central cam section (A), the outer section (B), and the inner section (C).

5. The smart cylinder lock assembly (100) according to claim 4, wherein the attachment mechanism (11) is arranged for interconnecting through sliding the one or more extension piece (D) with one or more of the central cam section (A), the outer section (B), and the inner section (C) into each other, and rotating the piece (D) and section (A, B, C) for locking such.

6. The smart cylinder lock assembly (100) according to claim 3, wherein the attachment mechanism (11) is configured with a dovetail shape, wherein the one or more extension piece (D) and the sections (A, B, C) interlock through complementary dovetail formations,7. The smart cylinder lock assembly (100) according to claim 3, wherein the attachment mechanism (11) comprises a bayonet interlock, wherein the one or more extension piece (D) and the sections (A, B, C) interconnect through a bayonet fitting arranged for inserting and twisting the components to lock them together.

8. The smart cylinder lock assembly (100) according to any of the previous claims, further comprising: a shaft (21) extending from the outer knob (20) to the inner knob (30), wherein the shaft (21) is configured to transmit rotational motion from the outer knob (20) to the inner knob (30) for coordinated operation.

9. The smart cylinder lock assembly (100) according to claim 8, wherein the shaft (21) is configured to allow for independent rotation of the inner knob (30) and the outer knob (20) when the outer knob (20) is detached from the central cam section (A).

10. The smart cylinder lock assembly (100) according to claim 8, wherein the shaft (21) is configured to engage with the controller (40) housed in the inner knob (30) to provide rotational feedback or control signals for remote operation.

11. The smart cylinder lock assembly (100) according to claim 8, wherein the one or more extension pieces (D) further comprise a shaft section (22) configured to extend between the inner section (C) and the central cam section (A), and / or between the outer section (B) and the central cam section (A), the shaft section (22) being configured to transmit rotational motion between the outer knob (20) and the inner knob (30).

12. The smart cylinder lock assembly (100) according to any of the previous claims, wherein the one or more extension pieces (D) are provided in different standardized lengths to conform to various standardized door thicknesses.

13. The smart cylinder lock assembly (100) according to any of the previous claims, wherein the different sections (A, B, C, D) are configured to be connected by sliding the components into each other and subsequently rotating them, and wherein the sections (A, B, C, D) being provided with a dovetail joint to withstand axial tensile forces, and the sections (A, B, C, D) are configured to receive a set screw (15) to block the rotation of the cylinder sections relative to each other is by tightening the set screw (15) into the bottom of a respective section (A, B, C, D).

14. An extension piece (D) for a smart cylinder lock assembly (100) according to claim 1 , the extension piece (D) being configured to be mechanically attached to an attachment mechanism (11) between a central cam section (A) and one or more of an outer section (B) and an inner section (C), wherein the extension piece (D) is arranged to extend the length (L) of the cylinder lock (12) to accommodate doors of varying thicknesses.

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